Health and safety system for a table saw

An improved health and safety system for a table saw includes one or more of: a blade guard that protects the operator from the saw blade, and contains and collects sawdust; a proximity detector and emergency saw motor braking means for use in connection with such blade guard; an anti-kickback device for use in connection with such blade guard, a rip fence adapter for use in connection with such a blade guard, and hoses and fittings to connect the dust containment and collection system of said blade guard to a shop dust collection blower or vacuum system. The system protects the saw operator from potential traumatic injury to a hand, and from ingesting potentially carcinogenic sawdust.

Protective Compliance Systems

The present invention provides apparatus and methods for safety compliance in hazardous situations. The apparatus may include sensing means for detecting a first protective apparatus, means for detecting a subject, monitoring means for monitoring engagement of the protective apparatus with the subject; and a controller for controlling operability of a second apparatus according to the monitoring means. Embodiments of the invention include the protective apparatus being eyewear or attenuating sound or radiation. The apparatus may include a power source. The communication between the elements of the apparatus may be by any suitable means, whether fixed line, radio frequency, optical transmission, acoustical, or the like. The invention includes a method for safety compliance comprising the steps of detecting a subject; determining the position of the subject in relation to a protective apparatus; determining the compliance state of the protective apparatus and controlling a second apparatus according to the compliance state.

Safety system in a portable tool

Safety system in a portable tool ( 1 ) includes a pair of electrodes connected to a measurement and assessment unit, the measurement and assessment unit being an integrated circuit touch sensor device provided with a ground connector and with a sense electrode, wherein the ground connector is configured as internal floating ground connected to one electrode, the measurement and assessment unit configured for acquiring a reference capacity value measured between the two electrodes varies by a preset difference threshold with respect to the reference value, the safety signal being sent to a tool deactivation actuator.

POWER TOOL SAFETY MECHANISMS

A sensing mechanism () for detecting user contact with an active portion () of the power tool () is provided. In addition, a safety mechanism () for preventing prolonged user contact with the active portion () of a power tool () is provided. The safety mechanism () is configured to actuate upon receipt of a signal from the sensing mechanism (). According to a first aspect, the safety mechanism () is arranged to rapidly displace the active portion () away from a user extremity. Alternatively, according to a second aspect, the safety mechanism () is arranged to rapidly urge an extremity of the user away from the active portion () of the power tool (). 175.-. (canceled)76. A power tool having an active portion , comprising:a pawl disposed proximate to the active portion and pivotally coupled at a first end to a frame member of the power tool;a biasing member engaged with the pawl and operating to urge the pawl into engagement with the active portion;a release mechanism selectively coupled between the pawl and the frame member and operates to uncouple from the pawl in response to an activation signal, wherein the pawl is disengaged from the active portion when the release mechanism is coupled to the pawl and the pawl is biased by the biasing member into engagement with the active portion when the release member is uncoupled from the pawl;a transmitter capacitively coupled to the active portion and operable to transmit an electrical signal to the active portion;a receiver capacitively coupled to the active portion and operable to receive the electrical signal transmitted to the active portion;a controller connected to the receiver and the release mechanism, the controller operable to detect a variation in the electrical signal and send an activation signal to the release mechanism when the variation in the electrical signal exceeds the threshold value, where the controller adjusts the threshold value based on an electrical load associated with the operation of the active ...

SAFETY SYSTEM, APPARATUS AND METHOD

An apparatus for use with an item of personal protective equipment, where the item of personal protective equipment includes a sensor configured to detect when the personal protective equipment is being worn properly by the user. The apparatus is housed within a hand-held power tool that includes a power circuit. The apparatus includes an electrical isolation device configured to prevent current flow in at least one conductor included in the power circuit; a wireless communication device configured to wirelessly couple to a wireless communication device included in the personal protective equipment. The wireless communication device is configured to receive a wireless signal transmitted from the wireless communication device included the personal protective equipment, the wireless signal providing information concerning whether the user is wearing the item of personal protective equipment properly. The electrical isolation device operates to allow current flow in the at least one conductor when the information provided by the wireless signal indicates that the item of personal protective equipment is being worn properly by the user. 1. An apparatus for use with an item of personal protective equipment , the item of personal protective equipment including a first wireless communication device and a sensor configured to detect when the personal protective equipment is being worn properly by the user , the apparatus configured to be housed within a hand-held power tool that includes a power circuit to supply electrical power for operation of the hand-held power tool , the apparatus comprising:an electrical isolation device configured to prevent current flow in at least one conductor included in the power circuit;a second wireless communication device configured to wirelessly couple to the first wireless communication device,wherein the second wireless communication device is configured to receive a wireless signal transmitted from the first wireless communication ...

SAFETY SYSTEMS FOR POWER EQUIPMENT

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem. The machine may also include a bypass or override mode where in an injury mitigation system is disabled for certain cuts. 1. A machine comprising:a blade; andan injury mitigation system with a normal mode wherein the injury mitigation system is configured to take an action to mitigate injury in the event of contact between the user and the blade, and a bypass mode wherein the injury mitigation system is disabled and takes no action to mitigate injury in the event of contact between the user and the blade.2. The machine of claim 1 , where the action is to stop or retract the blade. This application is a continuation of U.S. patent application Ser. No. 15/670,374, filed Aug. 7, 2017, which is a continuation of U.S. patent application Ser. No. 10/100,211, filed Mar. 13, 2002, issuing as U.S. Pat. No. 9,724,840 on Aug. 8, 2017, which claims the benefit of and priority from U.S. Provisional Patent Application Ser. No. 60/275,583, filed Mar. 13, 2001, all of which are hereby incorporated by reference.This application hereby incorporates by reference the following U.S. patent application: Ser. No. 09/676,190, filed Sep. 29, 2000. This application also hereby incorporates by reference the following PCT patent application: PCT/US00/26812, filed Sep. 29, 2000. This application further incorporates by reference the following U.S. ...

DETECTION SYSTEMS FOR POWER TOOLS WITH ACTIVE INJURY MITIGATION TECHNOLOGY

Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise. 1. A power tool comprising:a rotatable arbor;a blade mounted on the arbor;a motor to spin the arbor and blade;a detection system to detect when a person contacts the spinning blade;a reaction system triggerable to perform an action to mitigate injury upon detection of the contact; anda conductive coupling connecting the detection system and the blade, where the conductive coupling includes a brush, where the brush establishes an electrical connection with a moving part of the power tool, and where the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system.2. The power tool of claim 1 , where the brush is compliant.3. The power tool of claim 1 , where the brush comprises a solid piece supported by a spring.4. The power tool of claim 1 , where the brush establishes an electrical connection by contacting a compliant ...

METHOD FOR DETECTING A SUBSTANCE

A method is provided for detecting a substance, preferably human tissue, in the vicinity of a mobile tool, wherein the substance to be detected has different electrical characteristics from a material that can be processed by the mobile tool. In the method, a change is detected in a capacitance formed by the tool and a counter electrode that is electrically insulated from the tool. A periodic change in the capacitance is detected and the change is produced by the presence of the substance in a region in relation to the tool and by a periodic change in a geometrical characteristic of the tool in this region as the tool moves. 1. A method for detecting a substance , preferably human tissue , in the vicinity of a movable tool , wherein the substance to be detected differs in its electrical properties from a material which can be processed by means of the movable tool , and wherein in the method a change in a capacitance formed by the too and a counterpart electrode that is electrically insulated from the tool is detected , characterized in that a periodic change in the capacitance is detected , wherein said change is caused by the substance being arranged in a region relative to the tool and by a geometrical property of the tool in said region changing periodically upon a movement of the tool.2. The method as set forth in claim 1 , wherein the tool is a machining tool claim 1 , preferably a circular saw blade.3. The method as set forth in claim 1 , wherein the geometrical property which changes periodically in the region upon movement of the tool is given by:a cutting geometry of at least one tool cutting edge, in particular by a succession of saw teeth, and/orat least one material recess, and/orat least one material deposit, and/orat least one shaped configuration.4. The method as set forth in claim 1 , wherein the movement of the tool is a guided movement claim 1 , preferably a rotary movement.5. The method as set forth in claim 1 , wherein the counterpart electrode ...

Method and device for discriminatory capacitive detection, and apparatus provided with such a device

A method for capacitive detection of nearby objects that may be located in the environment of an equipment provided with a capacitive detection device including a detection step, called discriminative detection step, including the following operations:polarizing a first nearby object at a first alternating potential (V1), different from a ground potential (M), and from the potential of at least one second nearby object, at a first frequency (F1); anddetermining a first discriminative signal representative of a capacitance, called electrode-object capacitance, seen by the at least one measurement electrode, at said first frequency (F1).

POWER TOOL HAVING OBJECT DETECTION

A power tool and methods are provided for detecting objects (e.g., flesh or other materials) in the operating path of a power tool's output component (e.g., saw blade or drill bit). An object detection sensor in the power tool generates an output signal indicative of a type of material detected in the operating path of the power tool. A power tool controller receives the object detection sensor output and determines when a material in the operating path of the power tool changes. The controller changes operation of a motor of the power tool (e.g., increasing or decreasing speed or stopping the motor) in response to the detected material change. The object detection sensor may include, for example, an RF sensor, a capacitive sensor, a camera, a conductivity probe, or an ultrasound probe. 1. A power tool comprising:a housing;a motor within the housing;an output component coupled to the motor, the output component defining an operating path of the power tool;an object detection sensor configured to generate an output signal indicative of a material in the operating path of the power tool; and receive the output signal from the object detection sensor and determine, based on the output signal, when the material in the operating path of the power tool changes; and', 'change an operation of the motor in response to determining that the material in the operating path of the power tool has changed., 'a controller coupled to the motor and the object sensor, the controller comprising an electronic processor and a memory storing instructions that when executed by the electronic processor cause the controller to2. The power tool of claim 1 , wherein the change in operation of the motor includes adjusting the speed of the motor or stopping the motor.3. The power tool of claim 1 , wherein the object detection sensor includes at least one selected from the group of a radio frequency (RF) sensor claim 1 , a capacitive sensor claim 1 , a camera claim 1 , a conductivity probe claim 1 ...

Power equipment with detection and reaction systems

Woodworking machines and safety methods for use with those machines are disclosed. The machines include a detection system adapted to detect one or more dangerous conditions and a reaction system associated with the detection system. The reaction system can include an explosive to trigger the system, and also can be configured to retract a cutting tool at least partially away from a cutting region upon detection of a dangerous condition by the detection system.

Method and Apparatus for Identifying When an Individual is in Proximity to an Object

An apparatus for identifying when an individual is in proximity to an object having a length has a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop. The wire loop extending along at least a third of the length of the object. The apparatus has a personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field. Alternatively, the sensor portion extends from a contiguous boundary up to 500 meters, where the boundary has a geometry that is linear or meandering. A head piece for an individual's head. A method for identifying when an individual is in proximity to an object. A field extension module. A proximity device. 1. An apparatus for identifying when an individual is in proximity to an object having a length comprising:a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop, the wire loop extending along at least a third of the length of the object; anda personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field.2. The apparatus of wherein the sensor portion includes a field generator which provides current to the wire loop claim 1 , and wherein the wire loop is a cable with insulation disposed about the wire which bends back to create opposing wires with an outgoing wire extending from the field generator and an incoming wire which extends to the field generator from where the cable bends back claim 1 , the wire of the cable has a first end and a second end electrically ...

Blade Drop for Power Device and Method of Manufacturing Thereof

A table saw in one embodiment a swing arm movable along a swing arm path between a first swing arm position adjacent a latch hold mechanism and a second swing arm position spaced apart from the latch hold mechanism, a blade supported by the swing arm, a charge coupling plate mounted in close proximity to the blade so as to form a capacitor, an actuating device configured to transfer a force to the swing arm when the swing arm is maintained at the first swing arm position resulting in a bias on the latch hold mechanism, and a control system configured to control the actuating device to transfer the force to the swing arm in response to a sensed change in capacitance of the capacitor. 1. A table saw , comprising:a swing arm movable along a swing arm path between a first swing arm position adjacent a latch hold mechanism and a second swing arm position spaced apart from the latch hold mechanism;a blade supported by the swing arm;a charge coupling plate mounted in close proximity to the blade so as to form a capacitor;an actuating device configured to transfer a force to the swing arm when the swing arm is maintained at the first swing arm position resulting in a bias on the latch hold mechanism; anda control system configured to control the actuating device to transfer the force to the swing arm in response to a sensed change in capacitance of the capacitor.2. The table saw of claim 1 , further comprising:a charge coupling plate holder supported by the swing arm, the charge coupling plate holder electrically isolating the charge coupling plate from the swing arm.3. The table saw of claim 2 , wherein the charge coupling plate is mounted to the charge coupling plate holder.4. The table saw of claim 3 , wherein:a plurality of screws mounts the charge coupling plate to the charge coupling plate holder; anda plurality of springs is located between the charge coupling plate and the charge coupling plate holder.5. The table saw of claim 1 , further comprising:at least one ...

APPARATUS FOR DETECTING DANGEROUS CONDITIONS IN POWER EQUIPMENT

Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also include a reaction system configured to cause one or more predetermined actions to take place upon detection of contact between a person and the cutting tool by the contact detection system. 1. A band saw comprising:a motor;at least two spaced-apart wheels, where at least one wheel is driven by the motor;a band blade extending around the wheels, where the band blade is electrically isolated;signal generation circuitry adapted to generate an electrical signal;a capacitive coupling adapted to capacitively couple the signal generation circuitry to the band blade to transfer at least a portion of the electrical signal to the band blade; anddetection circuitry configured to monitor the electrical signal on the band blade for changes indicative of a dangerous condition between a person and the band blade and to trigger some action to mitigate the dangerous condition when the changes indicative of the dangerous condition are detected.2. The band saw of further comprising a second capacitive coupling adapted to capacitively couple the detection circuitry to the band blade so that the detection circuitry can monitor the electrical signal on the band blade through the second capacitive coupling.3. The band saw of where the capacitive coupling includes two spaced-apart conductors claim 1 , and where the blade is one of the two conductors and a charge plate adjacent the blade is the other of the two conductors.4. The band saw of where the charge plate is adjacent a portion of the band blade extending around one of the wheels.5. The band saw of where the charge plate is adjacent a portion of the band blade extending between the wheels.6. The band saw of further comprising a second capacitive coupling ...

SAFETY SYSTEM, APPARATUS AND METHOD

An apparatus configured for use with a first power cord, a second power cord and safety glasses including a first wireless communication device. The apparatus includes at least one line conductor, an electrical isolation device configured to prevent current flow in the at least one line conductor, a second wireless communication device configured to wirelessly couple to the first wireless communication device and a body housing the electrical isolation device and the second wireless communication device. The body includes a collar configured to move in a direction parallel to the longitudinal axis while coupled to the body. The collar includes an interior wall that defines a hollow region sized and configured to receive at least a portion of the body therein, the collar configured to secure to one of the female electrical socket and the male electrical plug with the respective one of first power cord and the second power cord electrically coupled to the distal end of the body and the collar at least partially extended from the body in a direction of the distal end. The electrical isolation device is configured to allow current flow in the at least one line conductor when the information provided by the wireless signal indicates that the safety glasses are being worn by the user. 1. A safety system for a user employing each of eye protection hardware including a first wireless communication device , a first power cord including a male plug and a second power cord including a female socket , the system comprising:a first component configured to secure to a respective one of the first power cord and the second power cord; a longitudinal axis;', 'at least one line conductor;', 'an electrical isolation device configured to prevent current flow in the at least one line conductor;', 'a second wireless communication device configured to wirelessly couple to the first wireless communication device;', a first end defining a female electrical socket coupled to the at least one ...

WORKSTATION

A human-robot cooperation (HRC) workstation has a programmable industrial robot () and a manual working area () for a worker () in a region surrounding the industrial robot (). In the HRC workstation (), the working areas of the industrial robot () and the worker () overlap. Contact between the worker () and the industrial robot () is possible. The workstation () is divided into a plurality of different zones () having differently high levels of risk of hazard from the industrial robot () for the worker (). The industrial robot () is suitable for human-robot cooperation. 1. A workstation comprising:a programmable industrial robot with a work space in an area surrounding the industrial robot; anda manual working area with a workspace for a worker in the area surrounding the industrial robot the workstation being configured for human-robot cooperation (HRC), wherein the work spaces of the industrial robot and of the worker overlap and a physical contact is possible between the industrial robot and the worker, wherein the workstation is divided into a plurality of different zones with different degrees of danger originating from the industrial robot for the worker, and wherein the industrial robot is configured as a robot suitable for HRC.2. A workstation in accordance with claim 1 , wherein the workstation has different markings on the different zones.3. A workstation in accordance with claim 1 , wherein the industrial robot comprises a tactile industrial robot.4. A workstation in accordance with claim 1 , wherein the industrial robot has a plurality of links claim 1 , which are connected to one another movably and rotatably claim 1 , and one or more force-controlled or force-regulated robot axes as well as an associated sensor system claim 1 , detecting acting loads.5. A workstation in accordance with claim 1 , wherein the industrial robot has at least one flexible robot axis with a flexibility regulation claim 1 , especially with a pure force regulation or a ...

Robot

A robot with a noncontact sensor is configured to: perform the predetermined motion in a state where the moving object does not enter, and thereby store, for each of a plurality of measurement points set in a movable range of the robot, an output value of the noncontact sensor as a reference output value in advance, and stop the predetermined motion when the output value of the noncontact sensor changes from the reference output value at the measurement point closest to a current operating position of the robot by a first threshold value or larger when the robot is performing the predetermined motion in a state where the moving object could possibly enter and the current operating position of the robot is in a range in which it is necessary to determine an entering state of the moving object.

PRODUCTIVITY ENHANCEMENT FOR BAND SAW

Machine vision apparatus tracks a distinctive object in relation to a hazardous location on a work surface of a modified band saw in two, three, or four (3-D+T) dimensions, and calculates whether to send an “immediate shut-down signal” to the band saw. Cameras and an image processor are mounted on the band saw. The signal causes an integrated blade-arresting or stopping mechanism to immediately shift the idler wheel, removing blade tension and disconnecting the blade which is then braked to a complete, safe stop before an approaching blue-gloved hand can touch the blade. 116-. (canceled)17. A powered machine of a type wherein a human operator uses his or her hands to present material to a movable means for cutting or shaping the material; the means being located within a three-dimensional hazardous zone having a height , a width , and a depth and in a position in relation to a frame of the machine; wherein the machine is provided with integrated safety protection apparatus including (a) three-dimensional optical risk determining means responsive to an instantaneous position in three dimensions of the operator's hands , as compared to the known position of the hazardous zone , and (b) actuator means for immediately stopping motion of the cutting or shaping means in response to an output of said risk determining means indicating that the operator's hands are at risk of entering the hazardous zone , thereby rendering the machine safe.18100114115113303304118118406405401402405a,b. The powered machine of claim 17 , comprising a bandsaw (); the movable cutting or shaping means comprises an exposed portion of an inextensible saw blade in the form of a band having cutting teeth along an edge and operatively disposed to pass over a first or driving wheel () driven by a motor () claim 17 , and over a second or idler wheel () while the blade is maintained under a tension during use thereby causing the blade to be coupled to both wheels by friction claim 17 , wherein the three- ...

Electrical configuration for object detection system in a saw

An object detection system in a saw includes an electrically conductive plate positioned at a predetermined distance from the implement, a detection circuit comprising a transformer, and a single cable connecting first terminal and second terminals of the transformer. The single cable includes a first conductor electrically connected to the first terminal of the winding and to the electrically conductive plate, a second conductor electrically connected to the implement, and an electrical insulator positioned between the first conductor and the second conductor.

Power Tool with Capacitive Injury Mitigation System

In one embodiment, a power tool includes a cutting assembly, a sensor system proximate to the cutting assembly, a reaction system operably connected to the cutting assembly, a memory, program instructions stored within the memory, a spatial recognition algorithm stored within the memory, and a processor operably connected to the reaction system, the sensor system, and the memory. The processor is configured to execute the program instructions to detect a man profile within a detection zone associated with the cutting assembly, establish a location of the human profile within the detection zone based upon the detection using the spatial recognition algorithm, determine that an unsafe condition exists based upon the established location, and activate the reaction system. 1. A power tool comprising:a cutting assembly;a sensor system proximate to the cutting assembly;a reaction system operably connected to the cutting assembly;a memory;program instructions stored within the memory;a spatial recognition algorithm stored within the memory; and detect a human profile within a detection zone associated with the cutting assembly,', 'establish a location of the human profile within the detection zone based upon the detection using the spatial recognition algorithm,', 'determine that an unsafe condition exists based upon the established location, and', 'activate the reaction system., 'a processor operably connected to the reaction system, the sensor system, and the memory, the processor configured to execute the program instructions to'}2. The power tool of claim 1 , wherein:the sensor system comprises a capacitive sensing chip, and one or more receivers; andthe processor is further configured to execute the program instructions to obtain a respective signal from each of the one or more receivers; andestablishing the location of the human profile includes establishing the location of the human profile based upon the respective signals.3. The power tool of claim 2 , wherein the ...

Protective apparatus for a machine tool

A protective apparatus and a machine tool are provided. The machine tool includes an operational element, a driving element, and the protective apparatus. The operational element and the driving element are disposed on machine table. The protective apparatus includes an insulating unit, conducting unit, capacitance sensor, and control unit. The insulating unit is disposed between the operational element and the driving element. The driving element drives the operational element by the insulating unit. The conducting unit contacts the operational element. The capacitance sensor electrically connects the conducting unit for sensing capacitance of the conducting unit. The control unit electrically connects the capacitance sensor and the driving element and determines whether a user approaches the operational element based on the capacitance. When the control unit detects that the distance between the user and the operational element is too close, the control unit stops the operation of the operational element.

DETECTION SYSTEMS FOR POWER TOOLS WITH ACTIVE INJURY MITIGATION TECHNOLOGY

Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise. 1. A power tool comprising:a rotatable arbor;a blade mounted on the arbor;a motor to spin the arbor and blade;a detection system to detect when a person contacts the spinning blade;a reaction system triggerable to perform an action to mitigate injury upon detection of the contact; anda conductive coupling connecting the detection system and the blade, where the conductive coupling includes a brush, where the brush establishes an electrical connection with a moving part of the power tool, and where the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system.2. The power tool of claim 1 , where the brush is compliant.3. The power tool of claim 1 , where the brush comprises a solid piece supported by a spring.4. The power tool of claim 1 , where the brush establishes an electrical connection by contacting a compliant ...

SAFETY SYSTEMS FOR POWER EQUIPMENT

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem. The machine may also include a bypass or override mode where in an injury mitigation system is disabled for certain cuts. 1. A machine comprising:a blade; andan injury mitigation system with a normal mode wherein the injury mitigation system is configured to take an action to mitigate injury in the event of contact between the user and the blade, and a bypass mode wherein the injury mitigation system is disabled and takes no action to mitigate injury in the event of contact between the user and the blade.2. The machine of claim 1 , where the action is to stop or retract the blade.3. A machine comprising:an operative structure adapted to perform a task, where the operative structure includes a circular blade having a perimeter and teeth disposed about the perimeter, where the blade is adapted to spin, and where the blade when spinning cuts an object that moves into contact with the teeth;a detection circuit to detect when a person is in contact with the teeth when the blade is spinning, where the detection circuit includes an oscillator that generates an oscillating signal, where the detection circuit also includes an electrical connection between the oscillator and the blade, where the oscillating signal is imparted on the blade through the electrical connection, where the detection circuit further includes a controller that ...

Method and Apparatus for Identifying When an Individual is in Proximity to an Object

An apparatus for identifying when an individual is in proximity to an object having a length has a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop. The wire loop extending along at least a third of the length of the object. The apparatus has a personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field. Alternatively, the sensor portion extends from a contiguous boundary up to 500 meters, where the boundary has a geometry that is linear or meandering. A head piece for an individual's head. A method for identifying when an individual is in proximity to an object. A field extension module. A proximity device. 1. An apparatus for identifying when an individual is in proximity to an object having a length comprising:a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop, the wire loop extending along at least a third of the length of the object; anda personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field.2. The apparatus of wherein the sensor portion includes a field generator which provides current to the wire loop claim 1 , and wherein the wire loop is a cable with insulation disposed about the wire which bends back to create opposing wires with an outgoing wire extending from the field generator and an incoming wire which extends to the field generator from where the cable bends back claim 1 , the wire of the cable has a first end and a second end electrically ...

Determining the movement of a machine to be secured

An arrangement for determining the movement of a machine to be secured after safety directed emergency signal, wherein the arrangement has a sensor module and a trigger module, wherein the sensor module is subsequently and releasably fastenable to the machine, and wherein the sensor module comprises: at least one sensor for detecting movement data describing the movement, a first trigger interface for the reception of a trigger signal that includes the point in time of the emergency signal, and a recording unit that is configured to store and/or output at least some of the movement data from the time period between the point in time of the emergency signal and the reaching of a safe state of the machine, and wherein the trigger module is configured for generating and/or receiving the safety directed emergency signal for the machine to be secured.

SENSOR DEVICE

A sensor device is provided which detects approach or in contact of a detection target with a moving part of an automatic device, and comprises a first sensor that detects the detection target at a position away from the moving part, a second sensor that detects the detection target at a position closer to the moving part than the first sensor, and a third sensor that detects the detection target at a position closer to the moving part than the first sensor. The approach of the detection target to the moving part is detected by both the second sensor and the third sensor at a position closer to the moving part than a position that can be detected by the first sensor. 1. A sensor device which detects approach or contact of a detection target with a moving part that is movably provided in an automatic device , comprising:a first sensor which detects the detection target at a position away from the moving part;a second sensor which detects the detection target at a position closer to the moving part than the first sensor; anda third sensor which detects the detection target at a position closer to the moving part than the first sensor,wherein the approach of the detection target to the moving part is detected by both the second sensor and the third sensor at a position closer to the moving part than a position detectable by the first sensor.2. The sensor device according to claim 1 , wherein a detection region of the second sensor and a detection region of the third sensor have different ranges in a direction away from the moving part.3. The sensor device according to claim 1 , wherein the detection region of the second sensor and the detection region of the third sensor overlap each other.4. The sensor device according to claim 2 , wherein the detection region of the second sensor and the detection region of the third sensor overlap each other.5. The sensor device according to claim 1 , wherein at least one of the second sensor and the third sensor is a contact sensor ...

Grinder with safe neck

FIELD: process engineering. SUBSTANCE: invention relates to light industry. Proposed grinder comprises casing, grinding mechanism including motor and cutting elements, and pickup. Casing has elongated narrow opening to allow feeding articles to be ground. Pickup comprises electrically conducting element arranged, at least, partially along said opening to detect presence of human being or animal nearby said opening via their electric characteristic. Device incorporates also a controller to cut off cutting elements in response to detected human being or animal. In compliance with independent patent claims 26, 37, 41, proposed grinder comprises thickness pickup instead of aforesaid pickup to define thickness of article to be ground and thickness indicator with audio or video outputs to generate audio or video signal to user. Said controller is designed to activate said indicator. Note here that, in compliance with independent patent claim 37, grinder incorporates contact extending into neck to be actuated by article fed into neck and optical pickup to measure displacement of said contact and to transmit data on said displacement to controller. In compliance with independent patent claim 41, grinder comprises additionally, at least, one detector of article received by the neck while controller allows controlling motor actuating cutting elements in response to detection of said article. EFFECT: higher safety and reliability. 44 cl, 19 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 446 891 (13) C2 (51) МПК B02C 23/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009134476/13, 11.09.2009 (24) Дата начала отсчета срока действия патента: 11.09.2009 (73) Патентообладатель(и): ФИЛЛОУЗ ИНК. (US) R U 2 4 4 6 8 9 1 Приоритет(ы): (30) Конвенционный приоритет: 10.09.2004 US 10/937,304 11.07.2005 US 11/177,480 (62) Номер и дата подачи первоначальной заявки, из которой данная заявка выделена: 2007108715 09.08.2005 (72) ...

Laser interlock system and control method for the same

본 발명의 일 측면에 따른 레이저 인터락 시스템 및 그 제어방법은 검사자와 피검사자가 보안경을 제대로 작용한 경우 또는 광음향 영상 장치가 실제로 사용되는 경우에만 레이저가 발생되도록 함으로써 검사자와 피검사자의 눈을 보호하고, 불필요한 전력 소모를 방지할 수 있는 레이저 인터락 시스템 및 그 제어방법을 제공한다. 본 발명의 일 측면에 따른 레이저 인터락 시스템은, 사용자와 보안경의 접촉 여부를 감지하는 감지부; 레이저를 발생시키는 광원부; 및 상기 감지부로부터 출력되는 출력값에 기초하여 상기 보안경이 정상적으로 착용되었는지 여부를 판단하고, 상기 판단 결과에 따라 상기 광원부의 레이저 발생을 온/오프하는 인터락 신호를 생성하는 제어부를 포함한다. A laser interlock system and a control method thereof according to an aspect of the present invention protects the eyes of an examinee and a testee by causing a laser to be generated only when the inspector and the examinee operate the safety goggles properly or when the photoacoustic image device is actually used , A laser interlock system capable of preventing unnecessary power consumption, and a control method thereof. According to an aspect of the present invention, there is provided a laser interlock system including: a sensing unit for sensing whether a user contacts a safety glass; A light source section for generating a laser; And a control unit for determining whether the safety goggles are normally worn on the basis of an output value output from the detection unit and generating an interlock signal for turning on / off the laser generation of the light source unit according to the determination result.

シュレッダ・スロート安全システム

Process machine with capacitive injury prevention system

А 2016124169 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) = КО © (51) МПК В27С 19/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016124169, 11.11.2014 (71) Заявитель(и): РОБЕРТ БОШ ГМБХ (ОЕ) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 18.11.2013 9$ 61/905,726 ВООНГ Гэри Л. (0$), НЬЮТОН Роберт Льюис (05), (43) Дата публикации заявки: 20.12.2017 Бюл. № 35 СЕО Джон (05) (85) Дата начала рассмотрения заявки РСТ на национальной фазе: 20.06.2016 (86) Заявка РСТ: 05 2014/064950 (11.11.2014) (87) Публикация заявки РСТ: УГО 2015/073405 (21.05.2015) Адрес для переписки: 105082, Москва, Спартаковский пер., 2, стр. 1, секция 1, этаж 3, ЕВРОМАРКПАТ (54) Технологическая машина с емкостной системой предупреждения травмирования (57) Формула изобретения |. Технологическая машина, содержащая режущее устройство, сенсорную систему, расположенную вблизи режущего устройства, систему реагирования, функционально связанную с режущим устройством, запоминающее устройство, в котором хранятся программные команды и алгоритм пространственного распознавания, и процессор, функционально связанный с системой реагирования, сенсорной системой и запоминающим устройством и способный выполнять программные команды для обнаружения части человеческого тела в зоне чувствительности, соотнесенной с режущим устройством, определения положения обнаруженной части человеческого тела в зоне чувствительности с использованием алгоритма пространственного распознавания, установления наличия небезопасной ситуации на основании определенного положения части человеческого тела, и активирования системы реагирования. 2. Технологическая машина по п. 1, в которой сенсорная система содержит чип емкостного зондирования и один или несколько приемников, а процессор также способен выполнять программные команды для получения соответствующего сигнала от приемника или каждого из приемников, причем соответствующие сигналы используются для определения положения части ...

Machine tool and method with a machine tool

Die Erfindung geht aus von einer Werkzeugmaschine mit einer Sicherheitseinheit (30). Es wird vorgeschlagen, dass die Werkzeugmaschine eine Kalibriereinheit (44) zur Kalibrierung der Sicherheitseinheit (30) aufweist. The invention is based on a machine tool with a safety unit (30). It is proposed that the machine tool has a calibration unit (44) for calibrating the safety unit (30).

Processing machine control device

FIELD: machine building. SUBSTANCE: machine, mainly with disc saw, comprises support surface 14 to retain workpiece and device to control machining with identification unit 24. The latter has two sensors to identify work conditions related with unforeseen behaviour of workpiece and/or operator touching work tool. Said unit 24 identifies departure of workpiece from support surface 14 proceeding from difference in distance parameters (42, 44, 46, 82, 98; 114.1 - 114.6). Note here that every sensor has field of vision facing support surface 14 while said controlled parameters correspond to distance from sensors to workpiece or operator hand. EFFECT: higher safety. 22 cl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 459 138 (13) C2 (51) МПК F16P 3/14 (2006.01) B23Q 17/00 (2006.01) B27G 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009112163/02, 04.09.2007 (24) Дата начала отсчета срока действия патента: 04.09.2007 (73) Патентообладатель(и): РОБЕРТ БОШ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 04.09.2006 DE 102006041755.0 30.08.2007 DE 102007041097.4 (72) Автор(ы): МАЛЕР Михаэль (DE), КРАПФ Райнер (DE), БРАУН Хайко (DE), ХЕЕС Александер Вернер (DE), ПОЛЛАУФ Филипп (DE) (43) Дата публикации заявки: 20.10.2010 Бюл. № 29 2 4 5 9 1 3 8 (45) Опубликовано: 20.08.2012 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: ЕР 1422022 А, 26.05.2004. ЕР 1514656 А, 16.03.2005. US 5436613 А, 25.07.1995. ЕР 1061487 А, 20.12.2000. SU 1208396 А1, 30.01.1986. 2 4 5 9 1 3 8 R U (86) Заявка PCT: EP 2007/059246 (04.09.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.04.2009 (87) Публикация заявки РСТ: WO 2008/028911 (13.03.2008) Адрес для переписки: 105082, Москва, Спартаковский пер., 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) УСТРОЙСТВО ДЛЯ КОНТРОЛЯ ТЕХНОЛОГИЧЕСКОЙ МАШИНЫ (57) Реферат: Изобретение относится к области безопасности функционирования ...

Technological machine with capacitive injury prevention system

FIELD: wood industry. SUBSTANCE: technological machine comprises a cutting device, a sensor system, a storage unit, a processor, and a response system. The sensor system is located near the cutting device. The response system is functionally connected to the cutting device. Pre-programmed commands and a spatial recognition algorithm are stored in the storage unit. The processor is functionally connected to the response system, the sensor system and the storage unit. By means of the sensory system, a part of the human body is detected in the sensitivity zone correlated with the cutting device of the technological machine. When a part of the human body is detected, its position in the sensitivity zone is determined by performing the spatial recognition algorithm by means of the processor. Based on a certain position of the human body part by means of the processor, an unsafe situation is detected, and the response system is activated to reduce the threat posed by the unsafe situation. EFFECT: simplifying the design and increasing the device reliability. 20 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 644 597 C2 (51) МПК B27G 19/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B27G 19/02 (2006.01) (21)(22) Заявка: 2016124169, 11.11.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): РОБЕРТ БОШ ГМБХ (DE) 13.02.2018 (56) Список документов, цитированных в отчете о поиске: US 2012186699 A1, 26.07.2012. WO 18.11.2013 US 61/905,726 (43) Дата публикации заявки: 20.12.2017 Бюл. № 35 2010059786 A1, 27.05.2010. US 2011048197 A1, 03.03.2011. RU 2456133 C2, 20.07.2012. RU 2459138 C2, 20.08.2012. (45) Опубликовано: 13.02.2018 Бюл. № 5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.06.2016 2 6 4 4 5 9 7 Приоритет(ы): (30) Конвенционный приоритет: R U 11.11.2014 (72) Автор(ы): ВООНГ Гэри Л. (US), НЬЮТОН Роберт Льюис (US), СЕО Джон (US) US 2014/064950 ...

Construction machine with presence recognition system

The vehicle has a driver seat (2) or a standing workstation provided for an operator. A presence detection system (3) has a sensor (4) e.g. capacitive-, inductive-, ultrasonic- or infrared sensor, formed to contactlessly detect whether the operator is present on the driver seat and/or workstation based on distance measurement. The sensor of the detection system is integrated in an operator console (1). The system defines a middle authorization region that lies between the seat and/or workstation and the operator console. An independent claim is also included for a method presence control of an operator on a driver seat or a standing workstation of a construction vehicle.

TECHNOLOGICAL MACHINE CONTAINING A SAFETY UNIT AND A CALIBRATION UNIT FOR CALIBRATING A SAFETY UNIT

1. Технологическая машина, содержащая предохранительный блок (30), отличающаяся наличием калибровочного блока (44), предназначенного для калибровки предохранительного блока (30). ! 2. Технологическая машина по п.1, отличающаяся наличием блока (34) человеко-машинного интерфейса, взаимодействующего с калибровочным блоком (44) для выполнения процесса калибровки конечным пользователем. ! 3. Технологическая машина по п.1 или 2, отличающаяся наличием блока (52) проверки, предусмотренного для проверки состояния калибровки предохранительного блока (30). ! 4. Технологическая машина по п.3, отличающаяся тем, что блок (52) проверки имеет по меньшей мере один режим автоматической проверки. ! 5. Технологическая машина по п.3, отличающаяся тем, что предохранительный блок (30) включает в себя сенсорный блок (32) для регистрации параметра при приведении в движение рабочего инструмента, а блок (52) проверки предусмотрен для того, чтобы в режиме проверки инициировать включение в работу сенсорного блока (32) перед приведением в движение рабочего инструмента. ! 6. Технологическая машина по п.3, отличающаяся наличием блока (42) управления, который предназначен для управления приведением в движение рабочего инструмента и по меньшей мере в одном режиме работы обусловливает включение привода рабочего инструмента проверкой состояния калибровки. ! 7. Технологическая машина по п.1, отличающаяся наличием запоминающего устройства (54) и блока (42) управления, взаимодействующего с запоминающим устройством (54) для сохранения калибровочных данных. ! 8. Технологическая машина по п.1, отличающаяся наличием устройства (36) вывода и блока (42) управления, взаимодействующего с РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 104 400 (13) A (51) МПК B23Q 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010104400/02, 13.05.2008 (71) Заявитель(и): РОБЕРТ БОШ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 11.07.2007 ...

Power tool with capacitive character injury alleviation system

在一个实施例中，动力工具包括切割组件、接近切割组件的传感器系统、能够操作地连接到切割组件的反应系统、存储器、储存在存储器内的程序指令、储存在存储器内的空间识别算法和能够操作地连接到反应系统、传感器系统和存储器的处理器。处理器配置成执行程序指令以检测在与切割组件相关联的检测区内的人体轮廓、基于检测利用空间识别算法建立检测区内人体轮廓的位置、基于所建立的位置确定不安全状态存在，以及启用反应系统。

Smart tools and workspaces for do-it-yourself tasks

One embodiment of the invention disclosed herein provides techniques for assisting with performing a task within a smart workspace environment. A smart workspace system includes a memory that includes a workspace management application. The smart workspace system further includes a processor that is coupled to the memory and, upon executing the workspace management application, is configured to perform various steps. The processor detects that a first step included in a plurality of steps associated with a task is being performed. The processor displays one or more information panels associated with performing the current step. The processor further communicates with augmented safety glasses, augmented tools, and an augmented toolkit to safely and efficiently through a series of steps to complete the task.

Smart tools and workspaces for do-it-yourself tasks

One embodiment of the invention disclosed herein provides techniques for assisting with performing a task within a smart workspace environment. A smart workspace system includes a memory that includes a workspace management application. The smart workspace system further includes a processor that is coupled to the memory and, upon executing the workspace management application, is configured to perform various steps. The processor detects that a first step included in a plurality of steps associated with a task is being performed. The processor displays one or more information panels associated with performing the current step. The processor further communicates with augmented safety glasses, augmented tools, and an augmented toolkit to safely and efficiently through a series of steps to complete the task.

Smart tools and workspaces for do-it-yourself tasks

One embodiment of the invention disclosed herein provides techniques for assisting with performing a task within a smart workspace environment. A smart workspace system includes a memory that includes a workspace management application. The smart workspace system further includes a processor that is coupled to the memory and, upon executing the workspace management application, is configured to perform various steps. The processor detects that a first step included in a plurality of steps associated with a task is being performed. The processor displays one or more information panels associated with performing the current step. The processor further communicates with augmented safety glasses, augmented tools, and an augmented toolkit to safely and efficiently through a series of steps to complete the task.

Smart tools and workspaces for do-it-yourself tasks

One embodiment of the invention disclosed herein provides techniques for assisting with performing a task within a smart workspace environment. A smart workspace system includes a memory that includes a workspace management application. The smart workspace system further includes a processor that is coupled to the memory and, upon executing the workspace management application, is configured to perform various steps. The processor detects that a first step included in a plurality of steps associated with a task is being performed. The processor displays one or more information panels associated with performing the current step. The processor further communicates with augmented safety glasses, augmented tools, and an augmented toolkit to safely and efficiently through a series of steps to complete the task.

Method and apparatus for identifying when an idividual is in proximity to an object

Abstract An apparatus for identifying when an individual is in proximity to an object having a length has a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop. The wire loop extending along at least a third of the length of the object. The apparatus has a personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field. Alternatively, the sensor portion extends from a contiguous boundary up to 500 meters, where the boundary has a geometry that is linear or meandering. A head piece for an individual's head. A method for identifying when an individual is in proximity to an object. A field extension module. A proximity device. [Figure 1] P0029.AU.01 C-4 :2M~~ LL 2 C) CD I--- _X >C c-.J (.0 C_ (> C) C _ r-'~ >- :2 -< C W H- a< C)C 1

SECURED CUTTING TOOL

PROCESS FOR MANAGING A SENSOR SYSTEM AND SENSOR SYSTEM FOR IMPLEMENTING THE PROCESS

Procédé de gestion d'un système de capteurs comportant au moins un élément capteur capacitif (10) installé à la surface de machine (100). Les lignes de champ électrique de l'élément (10) sont modifiées par l'approche et/ou par un contact d'un corps ou d'un objet. Au moins un élément capteur (10) est relié à une installation de commande (20) qui, par la détection de la variation des lignes de champ d'au moins un élément capteur (10) déclenche une fonction de sécurité de la machine (100). L'élément capteur (10) assure une fonction de service. A partir de son emplacement et de l'évolution chronologique de la variation des lignes de champ, on conclut à une fonction de service et la fonction de sécurité a la priorité sur la fonction de service dans l'état de base du système de capteurs. A method of managing a sensor system comprising at least one capacitive sensor element (10) installed on the machine surface (100). The electric field lines of the element (10) are modified by the approach and / or by contact with a body or an object. At least one sensor element (10) is connected to a control installation (20) which, by detecting the variation in the field lines of at least one sensor element (10) triggers a safety function of the machine (100 ). The sensor element (10) performs a service function. From its location and the chronological development of the variation of the field lines, a service function is concluded and the safety function has priority over the service function in the basic state of the sensor system.

SECURED CUTTING TOOL

L'invention se rapporte à un outil de coupe muni d'au moins un élément de coupe. Il comporte un dispositif de sécurité couplé électriquement, via une première interface, à l'élément de coupe. Le dispositif de sécurité comprend en outre un détecteur arrangé de sorte à : - mesurer périodiquement, au niveau de la première interface, une valeur fonction d'une capacité électrique et du contact de l'élément actif avec un corps étranger ; - comparer la valeur mesurée à une valeur de référence propre à un évènement ; - délivrer, sur une deuxième interface, un signal de sécurité comportant une information relative audit évènement, lorsque l'écart entre la valeur mesurée et la valeur de référence est supérieur à un seuil. The invention relates to a cutting tool provided with at least one cutting element. It comprises a safety device electrically coupled, via a first interface, to the cutting element. The security device further comprises a detector arranged to: - periodically measure, at the first interface, a value based on an electrical capacitance and the contact of the active element with a foreign body; - compare the measured value with a reference value specific to an event; delivering, on a second interface, a security signal comprising information relating to said event, when the difference between the measured value and the reference value is greater than a threshold.

Construction machine with presence recognition system

本发明提供一种建设机械，特别是路面整修机，其包括存在检测系统(3)。存在检测系统(3)包括集成在建设机械的控制面板(1)中的传感器(4)。通过传感器(4)，可以执行距离测量，其确定操作者是否正确地坐在建设机械的驾驶员座位(2)上或是否正确地站在站立工作位置上。为了确定存在，可以指定容许范围(6)，该容许范围允许操作者在驾驶员座位(2)上的小幅移动。如果操作者接近容许范围(6)的限制，则由报警信号及时地要求操作者正确地坐在驾驶员座位(2)上或采取在站立工作位置上的正确位置。如果传感器(4)未检测到操作者在驾驶员座位(2)或站立工作位置上，则停止建设机械的所有功能以便确保施工现场安全。

For running the method and sensing system of sensing system

用于运行传感器系统的方法以及传感器系统。本发明涉及一种用于运行具有至少一个电容的传感器元件（10）的传感器系统的方法，所述传感器元件能够安置在机器（100）或机器部件的表面处，其中传感器元件（10）处的电场线在身体或物体接近和/或接触时改变，并且其中所述至少一个传感器元件（10）与控制设备（20）连接，控制设备（20）基于所述至少一个传感器元件（10）的场线的所检测的改变触发机器（100）或机器部件处的安全功能。根据本发明规定：至少一个传感器元件（10）除了满足所述安全功能以外具有操作功能，从所述至少一个传感器元件（10）的位置以及场线的改变的时间变化曲线中推断出操作功能，并且所述安全功能在所述传感器系统的基本状态下优先于所述操作功能。

For monitoring the protection equipment with voltage sensitive sensor of industrial plant

本发明涉及具有压敏传感器(22)的保护设备(10、12)，该压敏传感器包括多个第一电极(46)和多个第二电极(48)。第一电极(46a至46h)中的每一个与第二电极(48a至48e)中的一个在相应的耦接位置(50)中交叠，并且第一电极(46a至46h)中的每一个通过压敏材料(56)与相应的第二电极在相应的耦接位置(50)处间隔开，使得当向耦接位置(50)施加力时，相应的第一电极(46g、52)与相应的第二电极(48d、54)之间的电阻(58)改变。耦接至多个第一电极(46)和多个第二电极(48)的电子测量单元被设计成相继地确定在相应的耦接位置(50)处的电阻(58)。评估单元(90)被设计成根据测量的电阻(58)提供输出信号，电子测量单元被设计成：为了经由相应的第一电极(46g、52)和相应的第二电极(48d、54)确定在耦接位置(50)处的电阻(58)，将其他第一电极与第二电极连接至用于接收限定电势(72)的连接，以使得能够对耦接位置(50)处的电阻(58)进行隔离测量。

An emergency work safety system and method for machinery

The present invention is an emergency work safety system (10), and method thereof which is developed in order to avoid or mitigate work accidents as sensing an emergency that can arise during working on machinery having dangerous tools (20) that humans are worked close at hand and are especially run by operators. A processor (11) sends signals to the outputs so as to provide activating a related output (14.2) by getting energy to the machinery and the system (10), if values taken from a sensor (12) meet initial conditions; giving electrical signal letting to start said dangerous tool (20) for work to be carried out by machinery such as cutting, pressing etc; starting to measure instant capacitive value from the time of getting energy to the motor which drives the dangerous tool (20) on the machinery and said value being used in processing and activating an emergency stopping system urgently when the sensed value exceeding a predefined limit.

System for detecting human presence in hazardous situations

The disclosure relates to a system for the detection of human presence in hazardous situations near moving machinery; appropriately shaped electrodes are placed in an area to be safeguarded and a radio-frequency signal of appropriate frequency and voltage is applied on the electrodes creating an alternating electric field around them. A bridge circuit is used to measure the capacitive impedance created by the electrodes and a dissipation factor is calculated from the real and imaginary parts of the impedance. If a foreign object is introduced into the electric field, the characteristics of the dielectric are modified creating a change of the value of the dissipation factor. The dissipation of energy in the high frequency region is much greater if this foreign object is a biological tissue as compared to other types of materials, such as conductors or insulators. Thus, the system detects human presence by noting the increase of the dissipation factor above a threshold value, and the movement of the appropriate machine part can then be stopped, thereby eliminating the danger of injury to the person.

Cutting tool safety system

A safer woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into contact with the cutting tool. A reaction system is provided to disable the cutting tool, such as by covering, blocking, destroying, wrapping, etc., upon detection by the detection system of the dangerous condition.

Power tool having object detection

A power tool and methods are provided for detecting objects (e.g., flesh or other materials) in the operating path of a power tool's output component (e.g., saw blade or drill bit). An object detection sensor in the power tool generates an output signal indicative of a type of material detected in the operating path of the power tool. A power tool controller receives the object detection sensor output and determines when a material in the operating path of the power tool changes. The controller changes operation of a motor of the power tool (e.g., increasing or decreasing speed or stopping the motor) in response to the detected material change. The object detection sensor may include, for example, an RF sensor, a capacitive sensor, a camera, a conductivity probe, or an ultrasound probe.

For mechanical part being carried out the sensing system of environmental monitoring and for the method controlled and analyze this sensing system

本发明涉及一种用于对机械部件进行环境监测的传感器系统以及用于控制和分析该传感器系统的方法。提出有具有至少一个电容性传感器元件(1；12)的对机械部件进行环境监测的传感器系统以及分析方法，所述传感器系统能够被安装在机器或机器零件的表面上，其中所述至少一个传感器元件(1；12)由挠性的导电和电绝缘的覆盖层(2，3，4；13，14)的层构造构成，其中覆盖层(2)的导电的等位面(6，7；D，E)被布置为在侧面通过位于其之间的绝缘的覆盖层(3)被间隔开，使得在导电的等位面(6，7；D，E)之间形成电场线(5)，所述电场线(5)在身体或物体的接近和/或接触的情况下以可测量的形式改变。

Device for non-contact detection and / or distance determination of at least one object relative to a measuring body and method therefor

Vorrichtungen sowie Verfahren zur berührungslosen Detektion und/oder Abstandsermittlung mindestens eines Objektes relativ zu einem Messkörper unter Verwendung eines Schwingkreises zur Erzeugung von elektrischen Schwingungen, wobei die Kapazität des Schwingkreises aus einer aktiven Kondensatorelektrode besteht, die an die Vorrichtung angeschlossen ist sowie einer passiven Kondensatorelektrode, die das zu messenden Objekt darstellt. Das Objekt beeinflusst das elektrische Feld, welches von der aktiven Kondensatorelektrode ausgesandt wird und verändert dadurch die Kapazität des Kondensators und somit die Frequenz des Schwingkreises der Vorrichtung. Durch eine in der Vorrichtung integrierte Steuerung wird der Schwingkreis gesteuert, kalibriert, sowie ausgewertet. Devices and methods for contactless detection and / or distance determination of at least one object relative to a measuring body using an oscillating circuit for generating electrical oscillations, the capacitance of the oscillating circuit consisting of an active capacitor electrode that is connected to the device and a passive capacitor electrode that represents the object to be measured. The object influences the electric field which is emitted by the active capacitor electrode and thereby changes the capacitance of the capacitor and thus the frequency of the resonant circuit of the device. The oscillating circuit is controlled, calibrated and evaluated by a controller integrated in the device.

Monitoring with a sensor element

The device (10) has a sensor element (12) for detection of a contact in a monitoring area or an approximation at the sensor element, a display element (30,32) for displaying status information or a measuring value. The sensor element is formed for recognizing status information of approximation of a person or the injury of a defined warning field.

Detection system for power equipment

Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the person and the cutter from contact between the workpiece and the cutter. The machines further include a reaction system adapted to cause a predetermined action to take place upon detection of contact between the person and the cutter by the contact detection system.

Power tool with capacitive injury mitigation system

In one embodiment, a power tool includes a cutting assembly, a sensor system proximate to the cutting assembly, a reaction system operably connected to the cutting assembly, a memory, program instructions stored within the memory, a spatial recognition algorithm stored within the memory, and a processor operably connected to the reaction system, the sensor system, and the memory. The processor is configured to execute the program instructions to detect a human profile within a detection zone associated with the cutting assembly, establish a location of the human profile within the detection zone based upon the detection using the spatial recognition algorithm, determine that an unsafe condition exists based upon the established location, and activate the reaction system. WO 2015/073405 PCT/US2014/064950 _ 5 134 1 36 ----------- 144 166 -170 1 6 6 y -\ 1 4 6 1 2 178 172 164 160 180 112

METHOD FOR MANAGING A SENSOR SYSTEM AND SENSOR SYSTEM FOR IMPLEMENTING THE METHOD

Procédé de gestion d'un système de capteurs comportant au moins un élément capteur capacitif (10) installé à la surface de machine (100). Les lignes de champ électrique de l'élément (10) sont modifiées par l'approche et/ou par un contact d'un corps ou d'un objet. Au moins un élément capteur (10) est relié à une installation de commande (20) qui, par la détection de la variation des lignes de champ d'au moins un élément capteur (10) déclenche une fonction de sécurité de la machine (100). L'élément capteur (10) assure une fonction de service. A partir de son emplacement et de l'évolution chronologique de la variation des lignes de champ, on conclut à une fonction de service et la fonction de sécurité a la priorité sur la fonction de service dans l'état de base du système de capteurs. A method of managing a sensor system having at least one capacitive sensor element (10) installed at the machine surface (100). The electric field lines of the element (10) are modified by the approach and / or by a contact of a body or an object. At least one sensor element (10) is connected to a control system (20) which, by detecting the variation of the field lines of at least one sensor element (10), triggers a safety function of the machine (100). ). The sensor element (10) provides a service function. From its location and from the chronological evolution of the field line variation, a service function is concluded and the safety function has priority over the service function in the basic state of the sensor system.

Machine tool monitoring device

Die Erfindung geht aus von einer Werkzeugmaschinenüberwachungsvorrichtung mit einer Erkennungseinheit (24) zur Erkennung einer Anwendungssituation bei einer Werkzeugmaschine (10). Es wird vorgeschlagen, dass die Erkennungseinheit (24) dazu vorgesehen ist, eine Anwendungssituation anhand wenigstens einer Abstandskenngröße (42, 44, 46, 82, 98) zu erkennen. The invention relates to a machine tool monitoring device having a detection unit (24) for detecting an application situation in a machine tool (10). It is proposed that the recognition unit (24) is provided to recognize an application situation on the basis of at least one distance characteristic (42, 44, 46, 82, 98).

Method for detecting the modification of the environment of a cable

Procédé de détection de la modification de l’environnement d’un câble Procédé de détection d’une modification de l’environnement dans le voisinage d’une portion au moins d’un câble de levage, de traction, ou de délimitation, conductrice de l’électricité, cette modification de l’environnement étant liée au déplacement relatif d’au moins un individu, animal ou objet par rapport à ladite portion, comportant l’étape consistant à détecter une variation de la capacitance de ladite portion représentative dudit déplacement. Figure pour l’abrégé : Fig. 1 Method for detecting the modification of the environment of a cable Method for detecting a modification of the environment in the vicinity of at least a portion of a lifting, traction or delimitation cable, conductive of electricity, this modification of the environment being linked to the relative displacement of at least one individual, animal or object with respect to said portion, comprising the step consisting in detecting a variation in the capacitance of said portion representative of said displacement. Figure for abstract: Fig. 1

Method and apparatus for identifying when an individual is in proximity to an object

An apparatus for identifying when an individual is in proximity to an object having a length has a sensor portion having a wire loop through which electric current runs and creates an electromagnetic field that emanates about the wire loop. The wire loop extending along at least a third of the length of the object. The apparatus has a personal alarm device that is worn by the individual which detects the presence of the magnetic field emanating from the wire loop when the personal alarm device is in the magnetic field and produces a signal indicating the personal alarm device is within the magnetic field. Alternatively, the sensor portion extends from a contiguous boundary up to 500 meters, where the boundary has a geometry that is linear or meandering. A head piece for an individual's head. A method for identifying when an individual is in proximity to an object. A field extension module. A proximity device.

Method for detecting changes in the environment of a cable

Procédé de détection de la modification de l’environnement d’un câble Procédé de détection d’une modification de l’environnement dans le voisinage d’une portion au moins d’un câble de levage, de traction, ou de délimitation, conductrice de l’électricité, cette modification de l’environnement étant liée au déplacement relatif d’au moins un individu, animal ou objet par rapport à ladite portion, comportant l’étape consistant à détecter une variation de la capacitance de ladite portion représentative dudit déplacement. Figure pour l’abrégé : Fig. 1 Method for detecting the modification of the environment of a cable Method for detecting a modification of the environment in the vicinity of at least a portion of a lifting, pulling, or delimiting cable, conductive of electricity, this modification of the environment being linked to the relative displacement of at least one individual, animal or object with respect to said portion, comprising the step of detecting a variation in the capacitance of said portion representative of said displacement. Figure for the abstract: Fig. 1

Safety detection and protection system for power tools

A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.

Road paver with operating module and process to activate an operating function

A road paver with at least one operating module to enter operating commands. The operating module comprises a plurality of buttons that can each be pressed in a contact-based way to enter the respective operating commands in order to activate relevant operating functions of the road paver. According to the disclosure, the road paver further comprises a sensor unit that is designed to detect a distance of an operator to the operating module, whereby this distance determines a space from the operating module to any body part of the operator. The sensor unit is connected to a control unit of the road paver that is configured to already activate at least one of the operating functions of the road paver by means of the output signal as soon as the operator undercuts a predetermined threshold distance in relation to the operating module.

Apparatus for workplace danger zone

An apparatus is for a user, a workplace danger zone, a hazardous workplace machine, a detector assembly and a computer assembly. The apparatus includes a garment configured to be worn by the user, and an identification device being configured to be coupled to the garment. The identification device is configured to be wirelessly detected.

Safety system for flaying machine

本发明涉及用于剥皮机的安全系统。本发明描述了一种用于工作机(1)的安全系统(100)，其中操作者(7)能够与工作机(1)交互，其中该系统(100)包括与操作者(7)关联的收发机单元(71)、与工作机(1)关联的中央处理单元(11)以接收来自于收发机单元(71)的信号；包含导电装置(85，84)的导电手套(81)，被配置以操作在正常运行(I)或在警报条件(II)中，电连接装置(82)被配置以连接收发机单元(71)到导电手套(81)，并且其中该中央处理单元(11)被配置以识别该操作者(7)是否被授权使用该工作机(1)，并且如果第二操作条件(II)发生，则发送警报信号(Sx1)以禁用该工作机(1)。

Power tool safety mechanisms

本发明提供了一种用于检测使用者与动力工具(10)的运动部分(26)接触的传感机构(12)。此外，本发明提供了一种用于防止使用者与动力工具(10)的运动部分(26)接触的安全机构(14)。安全机构(14)配置为在接收到来自传感机构(12)的信号时启动。根据第一方面，安全机构(14)布置为可以迅速地将运动部分(26)从使用者肢体移开。作为选择，根据第二方面，安全机构(14)布置为可以迅速地将使用者的肢体从动力工具(10)的运动部分(26)推开。

Guarding of machine tools

1,106,457. Transistor switching circuits. WILMOT BREEDEN Ltd. 28 Oct., 1965 [3 Sept., 1964], No. 36071/64. Heading H3T. [Also in Divisions F2 and G1] The circuit controls power-actuated guards for the danger zone of a power press in accordance with the positions of switches 59, 53, 49 respectively controlled by, a device such as a capacity loop or a light curtain which detects an obstruction in the danger zone, a cam indicating the position of the guards, and a cam indicating the position of the press ram. An " AND " circuit including PNP transistors 65, 70, 74 controls the potential at 76 in response to switches 53, 59, the effect of switch 59 being over-ruled when the switch 53 contacts 53c. Initially, with the guards open, switch 53 contacts 53b and switch 59 is closed. Insertion of a hand with a workpiece into the danger zone causes switch 59 to open, and withdrawal of the hand re-closes the switch. The successive opening and closing of switch 59 acts via a differentiating circuit including a capacitor 86 and a diode 85 to produce a pulse which switches the bi-stable circuit comprising transistors 77, 78 to a state in which transistor 77 is non- conductive and transistor 78 is conductive, to provide an output to an amplifier including transistors 89, 93, 97 causing energization of a solenoid 61. This initiates closure of the guards, which when fully closed initiate press operation. Also when the guards are closed, switch 53 contacts 53c. At the end of the press ram working stroke the switch 49 is momentarily closed to reset the bi-stable circuit to its initial state, de-energizing solenoid 61. At the end of the press-ram return stroke, the guards are released, and open, allowing switch 53 to return to 53b. A capacitor 66 in the " AND " circuit causes a time delay between the return of switch 53 to contact 53b and the change of transistor 65 to its conductive state, which allows switch 59 to become effective to initiate a new cycle.

SECURITY PRODUCTS FOR SECURING USERS OF A SAW TABLE

Beveiligingsmiddelen (12,17) voor het beveiligen van gebruikers (2) van een zaagtafel (1), die detectiemiddelen (18) en besturingsmiddelen (21) omvatten die op de zaagtafel (1) zijn voorzien voor het bewaken van een zone (23) rondom een zaagblad (5) van de zaagtafel (1), waarbij door de detectiemiddelen (18) de aanwezigheid van lichaamsdelen (16) van een gebruiker (2) binnen de voornoemde zone (23) wordt gedetecteerd en waarbij door de besturingsmiddelen (21) het zaagblad (5) automatisch wordt stopgezet van zodra zulke aanwezigheid van lichaamsdelen (16) van een gebruiker (2) binnen deze zone (23) door de detectiemiddelen (18) wordt gedetecteerd.

Method for identifying power tools and their events and / or states

본 발명은, 기계적 벡터(3)를 검출하기 위한 센서 장치(2) 및 이러한 센서 장치(2)에 통신 가능하게 연결된 제어 장치(4)를 포함하는, 톱날 또는 밀링 커터로서 형성된 회전 가능한 공구(1)를 구비한 전동 공구(10; 20; 30; 40; 50; 60)에 관한 것으로서, 이 경우 상기 기계적 벡터(3)는 힘, 가속도, 속도, 편향, 변형 및/또는 기계적 응력을 포함하고, 상기 공구(1)로부터 나오는 힘에 의존하며, 상기 제어 장치는 상기 센서 장치(2)에 의해 검출된 기계적 벡터(3)의 방향 및/또는 방향 변화에 따라 상기 전동 공구(10; 20; 30; 40; 50; 60)의 이벤트 및/또는 상태를 식별하도록 형성되어 있다.

Power tool safety mechanisms

A sensing mechanism (12) for detecting user contact with an active portion (26) of the power tool (10) is provided. In addition, a safety mechanism (14 ) for preventing prolonged user contact with the active portion (26) of a powe r tool (10) is provided. The safety mechanism (14) is configured to actuate up on receipt of a signal from the sensing mechanism (12). According to a first aspect, the safety mechanism (14) is arranged to rapidly displace the active portion (26) away from a user extremity. Alternatively, according to a secon d aspect, the safety mechanism (14) is arranged to rapidly urge an extremity o f the user away from the active portion (26) of the power tool (10).

Control device for rolling gate for wall opening of e.g. building, has sensor changing control device from special operation mode to normal operation mode, and detecting transition of cover sheet from opening to closing state

The device (3) has a housing provided with an openable cover sheet, where the device includes a special operation mode and a normal operation mode. A sensor detects a closing state of the cover sheet, and changes the control device from the special operation mode to the normal operation mode. The sensor detects transition of the cover sheet from opening to closing state. Signals of safety devices such as light barrier (4), closing edge safety device (6) and safety braking (7), are provided for the control device in the normal operation mode.

Protection device with a pressure-sensitive sensor for monitoring an industrial plant

The present invention relates to a protection device (10, 12) with a pressure-sensitive sensor (22) comprising a plurality of first electrodes (46) and a plurality of second electrodes (48). Each of the first electrodes (46a-46h) overlaps one of the second electrodes (48a-48e) in a corresponding coupling site (50), and each of the first electrodes (46a-46h) is spaced apart from the corresponding second electrode by a pressure-sensitive material (56) at the corresponding coupling site (50), in such a way that when a force is applied to the coupling site (50) an electrical resistance (58) between the corresponding first electrode (46g, 52) and the corresponding second electrode (48d, 54) changes. An electronic measurement unit coupled to the plurality of first electrodes (46) and to the plurality of second electrodes (48) is designed to determine successively the electrical resistance (58) at the corresponding coupling sites (50). An evaluation unit (90) is designed to provide an output signal depending on the measured electrical resistances (58), the electronic measurement unit being designed, in order to determine the electrical resistance (58) at a coupling site (50) via the corresponding first electrode (46g, 52) and the corresponding second electrode (48d, 54), to connect the other first electrodes and second electrodes to a connection for receiving a defined potential (72), allowing an isolated measurement of the electrical resistance (58) at the coupling site (50).

Processing machine control device

FIELD: machine building. SUBSTANCE: invention relates to processing machine control device. Proposed device comprises working support surface 14, identification unit 24 to indentify working conditions nearby processing machine 10 that incorporating sensor. Said sensor is arranged above supporting surface 14 to define control zone elongated along measurement direction 54 passing perpendicular to said support surface 14. Identification unit 14 identify working conditions proceeding from, at least one distance parameter (42, 44, 46, 82, 98) corresponding to distance from sensor to support surface 14 or to object in sensor control zone. EFFECT: higher safety. 14 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 453 415 (13) C2 (51) МПК B23Q 11/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009112161/02, 27.07.2007 (24) Дата начала отсчета срока действия патента: 27.07.2007 (73) Патентообладатель(и): РОБЕРТ БОШ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 04.09.2006 DE 102006041756.9 (72) Автор(ы): КРАПФ Райнер (DE) (43) Дата публикации заявки: 20.10.2010 Бюл. № 29 2 4 5 3 4 1 5 (45) Опубликовано: 20.06.2012 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: US 2005057206 A1, 17.03.2005. SU 477823 A, 29.07.1975. SU 771510 A, 18.10.1980. US 4713892 A, 22.12.1987. US 2005207619 A1, 22.09.2005. 2 4 5 3 4 1 5 R U (86) Заявка PCT: EP 2007/057783 (27.07.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.04.2009 (87) Публикация заявки РСТ: WO 2008/028726 (13.03.2008) Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) УСТРОЙСТВО ДЛЯ КОНТРОЛЯ ТЕХНОЛОГИЧЕСКОЙ МАШИНЫ (57) Реферат: Изобретение относится к устройству для контроля технологической машины. Устройство содержит опорную поверхность (14) для обрабатываемой заготовки (16), блок (24) распознавания, предназначенный для распознавания рабочей ...

Safety system for machine tools

A safety system for a rotary saw or other dangerous machine tools features a flesh-sensing circuit (14, 19), located on a safety guard (16) surrounding a dangerous machine part, which generates an electronic signal to trigger emergency stopping of the machine before the operator can contact the dangerous machine part. The stopping means preferably employs DC injection, winding current direction reversal and/or electromagnetic motor braking, in the event of detection of operator contact with the safety guarding device. The system is adapted to be used both with newly-manufactured machine tools and by retrofitting onto previously-manufactured machine tools, by in-the-field modifications.

Sensor apparatus and safety apparatus for protecting approach to machines

A sensor apparatus and a safety apparatus which can ensure significantly enhanced safety by monitoring constantly whether the sensor apparatus is operating normally. An auxiliary electrode plate of a small area is disposed in parallel and in opposition to an electrode plate with a short distance therefrom. A switching element is turned on every second for a period of milliseconds repetitively. When the switching element is turned on under the control of a central processing unit, the auxiliary electrode plate is connected to the ground potential, as a result of which a capacitance ΔC effective between the auxiliary electrode plate and the electrode plate is electrically connected in parallel with a capacitor C 0 effective between the electrode plate and a machine component, resulting in that the capacitance C 0 is increased by a proportion corresponding to the capacitance ΔC. Consequently, change of the capacitance C 0 comparable to that brought about upon detection of the human body takes place, whereby a substantially similar detection signal as the human body detection signal is made available. On the basis of this detection signal, it is possible to monitor whether or not the sensor apparatus is operating normally.

A method and a device for sensing the distance between a first object and a second object

A method and an arrangement for protecting a conductive object from damage by another moving object

The present invention is providing a method and an operating arrangement to effectively obtain protection detection of an object, especially a person, positioned close to a machine in motion or a moving part of a machine in the case of accidental collision or contact by the machine with the person without the use of any electric cabling arrangement between the person and the machine. This is accomplished by detecting an induced AC signal in the body of the person transferred to the machine at the moment of ohmic contact by utilization of an insulated conducting sensor surface covering the total surface of the machine. This sensor surface is connected to an electronic circuitry outputting signals to the power and controlling unit of the machine for stopping or reversing its motion in a case of dangerous contact between the machine and the object, i.e. a person.

Protection systems and apparatus

PERSONAL PROTECTION AGAINST MECHANICAL, ELECTRICAL OR THERMAL HAZARDS

System and method for rapidly stopping a spinning table saw blade

A system for stopping a spinning table saw blade is comprised of a pin assembly disposed adjacent to a saw blade assembly for stopping a spinning saw blade. A receiving block is disposed on a side of the saw blade opposing the pin assembly for receiving the tip of the pin assembly. A driving assembly is coupled to the pin assembly for driving the pin assembly into the spinning saw blade into the receiving block. Finally, a sensing assembly is coupled to at least one of the saw blade assembly and the driving assembly for sensing encroachment of a user's hand in a pre-defined zone. In use, upon sensing a user's hand the sensing assembly signals the driving assembly to stop the spinning saw blade by driving the pin assembly through the saw blade and into the receiving block.

It detects dangerous voltage and indicates the personal wearable system in the direction in source

一种个人电压检测系统包括由用户穿戴并携带多个电场传感器(22)的服装(30)，每个传感器面向不同的方向。每个传感器包括在发送表示针对相关联方向的场强的无线信号(48)时感测电场的换能器(38)。警报设备(26)与多个传感器可操作地通信，并且包括控制器(114)，其被配置为监测针对每个传感器的场强并响应于场强高于预选水平而确定报警状况的存在，并且配置为生成指示报警状况的相关联方向的报警信号。

Safety apparatus and system for use with eye protection

A safety system includes safety glasses and an apparatus. The safety glasses include an electronic system having a sensor configured to detect when the safety glasses are worn by a user and a wireless communication device. The apparatus includes a body housing an electrical isolation device and a wireless communication device. The body includes a first end defining a female electrical socket, a second end defining a male electrical plug and a fastening device coupled to the body and configured to move from an open position to a closed position in which an electrical cord that is electrically coupled to the body at one of the first end or the second end is also physically secured to the body by the fastening device. The electrical isolation device is configured to prevent current flow in the line conductor included in the body when the safety glasses are not being worn by the user.

Power tool with capacitive injury mitigation system

In one embodiment, a power tool includes a cutting assembly, a sensor system proximate to the cutting assembly, a reaction system operably connected to the cutting assembly, a memory, program instructions stored within the memory, a spatial recognition algorithm stored within the memory, and a processor operably connected to the reaction system, the sensor system, and the memory. The processor is configured to execute the program instructions to detect a human profile within a detection zone associated with the cutting assembly, establish a location of the human profile within the detection zone based upon the detection using the spatial recognition algorithm, determine that an unsafe condition exists based upon the established location, and activate the reaction system.

Motion detecting system for use in a safety system for power equipment

A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relative to the working portion upon detection of the dangerous condition. A motion detection system is adapted to detect motion of the working portion and to disable the reaction system when the working portion is not moving. The motion detection system may include a sensor, such as a Hall effect sensor, an electromagnetic field sensor, an optical sensor, or an electrical sensor. The woodworking machine may take the form of a saw, the working portion may be a blade adapted to cut when spinning, and the dangerous condition may be a person contacting the blade.

Safety systems for power equipment

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem. The machine may also include a bypass or override mode where in an injury mitigation system is disabled for certain cuts.

Safety device for a sliding table saw

Formatkreissäge, insbesondere zur Bearbeitung von Holz- und/oder Kunststoffmaterialien, umfassend - eine Werkstückauflagefläche mit einem Sägeschlitz, - ein Sägeaggregat mit einem Kreissägeblatt, das eine Vielzahl an Sägezähnen zum Bearbeiten von Werkstücken aufweist, - wobei das Kreissägeblatt an dem Sägeaggregat unterhalb der Werkstückauflagefläche drehbar gelagert ist und in einem Sägebetriebsmodus durch den Sägeschlitz hindurchragt, - eine Detektionsvorrichtung zur Erkennung mindestens eines Gefährdungszustandes für ein menschliches Körperteil durch das Sägeblatt, - eine Sicherheitsvorrichtung zur Vermeidung von Verletzungen eines menschlichen Körperteils durch das Kreissägeblatt mittels einer Sicherheitsmaßnahme, und - eine Steuerungsvorrichtung, welche mit der Detektionsvorrichtung und der Sicherheitsvorrichtung signaltechnisch gekoppelt ist, wobei - die Steuerungsvorrichtung angeordnet und ausgebildet ist, in Folge einer Erkennung des mindestens einen Gefährdungszustandes mittels der Detektionsvorrichtung, eine Sicherheitsmaßnahme mittels der Sicherheitsvorrichtung einzuleiten. Sliding table saw, in particular for processing wood and / or plastic materials, comprising a workpiece support surface with a kerf, a saw unit with a circular saw blade having a plurality of saw teeth for machining workpieces, - Wherein the circular saw blade is rotatably mounted on the saw unit below the workpiece support surface and projects through the kerf in a sawing mode, a detection device for detecting at least one state of danger for a human body part by the saw blade, a safety device for preventing injuries to a human body part by the circular saw blade by means of a safety measure, and - A control device which is signal-coupled with the detection device and the safety device, wherein - The control device is arranged and designed to initiate a security measure by means of the security device as a result of detection of the at least one hazardous state by means of the ...

Sensor apparatus and safety apparatus for protecting approach to machines

센서장치의 정상동작 여부를 항상 모니터하므로써 현저히 향상된 안전성을 보장할 수 있는 센서장치 및 안전장치를 제공한다. 작은 영역의 보조 전극판은 조금 떨어진 전극판과 평행하게 반대편에 배치된다. 스위칭소자는 매초 수밀리초동안 반복적으로 턴온된다. 중앙처리장치의 제어하에 스위칭소자가 턴온될 때, 보조전극판은 접지전위에 접속되고, 그 결과, 보조전극판과 전극판 사이의 유효용량 △C 은 전극판과 머신부품 사이의 유효 커패시터 △C 0 와 병렬로 전기접속되어, 용량 C 0 는 용량 △C 에 해당하는 정도만큼 증가된다. 결과적으로, 인체 탐지시 발생된 것에 비교할만한 용량 C 0 의 변화가 일어나고, 이에 의해, 인체 탐지 신호와 실질적으로 유사한 탐지신호가 사용가능하게 된다. 이 탐지신호에 기초하여, 센서장치가 정상동작하는지의 여부를 모니터할 수 있다. It provides a sensor device and a safety device that can guarantee a significantly improved safety by always monitoring the normal operation of the sensor device. The auxiliary electrode plate of the small area is disposed on the opposite side in parallel with the slightly separated electrode plate. The switching element is repeatedly turned on for several milliseconds every second. When the switching element is turned on under the control of the central processing unit, the auxiliary electrode plate is connected to the ground potential, so that the effective capacitance ΔC between the auxiliary electrode plate and the electrode plate is the effective capacitor ΔC between the electrode plate and the machine part. Electrically connected in parallel with zero , the capacitance C 0 is increased by a degree corresponding to the capacitance ΔC. As a result, a change in capacity C 0 comparable to that generated during human body detection occurs, whereby a detection signal substantially similar to the human body detection signal becomes available. Based on this detection signal, it is possible to monitor whether or not the sensor device is operating normally. 센서장치, 안전장치, 인체 탐지신호 Sensor device, safety device, human detection signal

Equipment safety system for the protected operation of dangerous motor equipment, in particular gardening equipment and tools

The invention relates to a system for the protected operation of dangerous motor equipment, in particular gardening equipment, such as hedge or edge cutters, power saws and lawnmowers. The aim of the invention is to provide solutions for improving the operational safety during the operation of motor equipment, in particular hand-held gardening and forestry equipment, in addition to power tools. To achieve this, the invention provides a solution in the form of an equipment safety system for averting dangerous operational situations during the use of motor-driven equipment. Said system comprises field preparation elements for generating a capacitive spatial alternating field and detection elements for detecting a dangerous state and/or a state which necessitates disconnection, by the detection of influences on the electric field, when an object penetrates the area detected by said field.

Miter saw with safety system

A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to retract the blade from the cutting zone.

Device for individual protection against mechanical, electrical or thermal risks

The invention concerns an individual protective device comprising at least one glove (20), a garment or a protective accessory equipped with electronic sensors and/or circuits (22) transmitting coded monitoring signals, electrically connected to an array or a network of distributed antennae. The whole assembly is mounted on perfectly flexible printed circuits, and adapted sensors are provided for verifying whether the protective device is being worn. A first detector is mounted on a dangerous machine to be protected, and picks up a signal transmitted by radio channel, so as to stop the machine and trigger an alarm signal if a part of the body, in particular the hand, penetrates into the tool travel range. A second detector is housed in a reading zone for controlling the permanent transmission of coded signals coming from the device. The coded signal transmission can be inhibited if the access code acquired by the operator on the machine keyboard does not match. The operator must be protected against electrical, radioactive or thermal risks, and in such a case the device comprises distributed sensors which analyse the electric fields, the radioactivity or the heat flux, and trigger off various alert levels. Moreover, even if the stoppage or reaction time may exceed the endangering times, a screen is made to intervene between the operator and the danger.

Road paver with operation module

本实用新型涉及一种道路摊铺机(1，1’)，其具有至少一个操作模块(7，7’)以便输入操作命令，由此操作模块(7，7’)包括多个按钮(14)，每个按钮(14)都能够以与接触相关的方式输入相应的操作命令以便激活道路摊铺机(1，1’)的相关操作功能。根据本实用新型，道路摊铺机(1，1’)还包括传感器单元(9)，其设计成检测操作人员与操作模块(7，7’)相距的距离，由此所述距离确定从操作模块(7，7’)到操作人员任何身体部位的空间，由此传感器单元(9)连接到道路摊铺机(1，1’)的控制单元(10)。

Safety edge

Coextrudierte Sicherheitskontaktleise mit wenigstens einer innerhalb eines Profils angeordneten, Schaltleisten aufweisenden Schaltkammer, dadurch gekennzeichnet dass ein Ende (24) des Bodens (2) des Profils (6) verschwenkbar an ein erstes Seitenteil (3) angebunden ist und das der Boden (2) mit dem anderen Ende (23) mit dem zweiten Seitenteil (4) formschlüssig verriegelbar ist. Coextruded safety contact strip comprising at least one switching chamber having a switching strip arranged within a profile, characterized in that one end (24) of the bottom (2) of the profile (6) is pivotally connected to a first side part (3) and the bottom (2) is connected the other end (23) with the second side part (4) is positively lockable.

System and method for reducing false positive detection between a human and a moving implement in a power tool

一种用于检测物体与动力工具中的器械接触的误报条件的方法，包括：对接收自器械的电信号采样；确定所采样的电信号的同相分量和正交分量；根据样本的同相分量和正交分量来确定每个样本的幅度；根据多个样本来检测接近器械的物体；确定样本的信噪比；以及根据所确定的样本的所确定的信噪比来确定对于所检测到的物体的误报条件。

Reel monitor devices and methods of using the same

The present invention includes systems and methods for monitoring the spooling area of a rotatable reel for winding or unwinding an elongated material, for example, a cable. The monitoring system has a detector for sensing the presence and position of a cable surface or object or operator positioned between the detector and the reel. The detector can control rotation of the reel directly, or send a position signal to a computer where the position signal indicates the detected presence and/or position. The computer can have a memory and/or a processor for respectively storing and analyzing the position signal. The computer is operative to compare the position signal to previously received position signals to determine a condition, for example, the amount of cable on the reel, the presence of any object, and/or the existence of a safety-threatening condition. The computer can generate an output signal for use in, for example, controlling the reel speed and/or torque, or the application of brakes.

Safety sensor and method for securing a machine

Verfahren zum Absichern einer Maschine (10), bei der ein erstes Maschinenteil (12) eine Arbeitsbewegung entlang einer ersten Bewegungsrichtung (18) gegen ein zweites Maschinenteil (14) ausführt, um ein Werkstück (26) zu verformen, welches sich beim Einwirken des ersten Maschinenteils (12) zumindest teilweise in einer zweiten die erste Bewegungsrichtung (18) kreuzenden Bewegungsrichtung (50) auf das erste Maschinenteil (12) oder das zweite Maschinenteil (14) hinzubewegt. Auf einem Oberflächenabschnitt des ersten Maschinenteils (12) oder des zweiten Maschinenteils (14) ist ein Sensor (36) mit einer über den Oberflächenabschnitt ausgedehnten Sensorfläche (42) angeordnet, wobei die Sensorfläche (42) eine Annäherung und/oder einen Kontakt des sich auf das erste Maschinenteil (12) oder das zweite Maschinenteil (14) zubewegenden Werkstücks (26) oder eines damit verbundenen Objekts registriert und ein Signal an eine Steuerung absetzt. Die Steuerung löst als Reaktion auf das Signal eine sicherheitsgerichtete Aktion aus. Method for protecting a machine (10), in which a first machine part (12) performs a working movement along a first direction of movement (18) against a second machine part (14) in order to deform a workpiece (26) which deforms when the first machine part (12) at least partially in a second direction of movement (50) crossing the first direction of movement (18) towards the first machine part (12) or the second machine part (14). A sensor (36) with a sensor surface (42) extending over the surface section is arranged on a surface section of the first machine part (12) or the second machine part (14), the sensor surface (42) detecting an approach and/or contact of the registers the first machine part (12) or the second machine part (14) of the workpiece (26) to be moved or of an object connected thereto and transmits a signal to a controller. The controller triggers a safety-related action in response to the signal.

chainsaw

Bei einer Kettensäge (100) mit einem Gehäuse (110), in dem eine Antriebseinheit (140) zum Antreiben einer Sägekette (144) angeordnet ist, wobei an dem Gehäuse (110) ein Haupthandgriff (112) und ein Hilfshandgriff (115) angeordnet sind, wobei dem Haupthandgriff (112) ein Bedienelement (160) zum Aktivieren der Antriebseinheit (140) zugeordnet ist, und wobei dem Hilfshandgriff (115) ein Handschutz (117) zum Aktivieren einer Bremsvorrichtung (180) zugeordnet ist, ist eine Sicherheitsschaltanordnung (120) zur Aktivierung und/oder Deaktivierung der Antriebseinheit (140) vorgesehen, der ein erstes und zweites Freigabeelement (122, 124) zugeordnet ist, wobei das erste Freigabeelement (122) zur Ausführung einer ersten Freigabefunktion aktivierbar ist, um eine Aktivierung der Sicherheitsschaltanordnung (120) zu initiieren, und wobei das zweite Freigabeelement (124) zur Ausführung einer zweiten Freigabefunktion aktivierbar ist, um eine Aktivierung der Antriebseinheit (140) über das Bedienelement (160) zu ermöglichen. In a chain saw (100) having a housing (110) in which a drive unit (140) for driving a saw chain (144) is arranged, wherein on the housing (110) a main handle (112) and an auxiliary handle (115) are arranged wherein a control element (160) is associated with the main handle (112) for activating the drive unit (140), and wherein the auxiliary handle (115) is associated with a hand guard (117) for activating a brake device (180), a safety switch arrangement (120) is provided. for activating and / or deactivating the drive unit (140), which is assigned a first and a second release element (122, 124), wherein the first release element (122) is activatable for executing a first release function, in order to activate the safety switch arrangement (120). and wherein the second release element (124) is activatable to perform a second release function to enable activation of the drive unit (140) via the operator enable (160).

Construction machine with presence recognition system

本发明提供一种建设机械，特别是路面整修机，其包括存在检测系统(3)。存在检测系统(3)包括集成在建设机械的控制面板(1)中的传感器(4)。通过传感器(4)，可以执行距离测量，其确定操作者是否正确地坐在建设机械的驾驶员座位(2)上或是否正确地站在站立工作位置上。为了确定存在，可以指定容许范围(6)，该容许范围允许操作者在驾驶员座位(2)上的小幅移动。如果操作者接近容许范围(6)的限制，则由报警信号及时地要求操作者正确地坐在驾驶员座位(2)上或采取在站立工作位置上的正确位置。如果传感器(4)未检测到操作者在驾驶员座位(2)或站立工作位置上，则停止建设机械的所有功能以便确保施工现场安全。

Sensor and method for detecting objects

Es wird ein Sensor (10) zur Erfassung von Objekten in einem Erfassungsbereich (30) angegeben, der eine Sensoreinheit (20) zum Erzeugen eines Messsignals aus dem Erfassungsbereich (30) und eine Auswertungseinheit (38) zum Erfassen der Objekte anhand des Messsignals aufweist. Dabei ist eine haptische Rückmeldungseinheit (22) mit mindestens einem Ultraschallwandler (40) vorgesehen, die dafür ausgebildet ist, an mindestens einem Raumpunkt (42) in dem Erfassungsbereich (30) mittels Ultraschall einer vorgegebenen Amplitude eine berührungslos erzeugte haptische Rückmeldung an einen Benutzer auszugeben, wobei die haptische Rückmeldung eine Eigenschaft des Sensors (10) oder ein Ergebnis der Erfassung von Objekten betrifft. A sensor (10) for detecting objects in a detection area (30) is provided which has a sensor unit (20) for generating a measurement signal from the detection area (30) and an evaluation unit (38) for detecting the objects based on the measurement signal. In this case, a haptic feedback unit (22) is provided with at least one ultrasonic transducer (40) which is adapted to output to a user at least one spatial point (42) in the detection area (30) by means of ultrasound of a predetermined amplitude a haptic feedback generated without contact, wherein the haptic feedback relates to a property of the sensor (10) or a result of the detection of objects.

Power tool safety mechanisms

A sensing mechanism (12) for detecting user contact with an active portion (26) of the power tool (10) is provided. In addition, a safety mechanism (14) for preventing prolonged user contact with the active portion (26) of a power tool (10) is provided. The safety mechanism (14) is configured to actuate upon receipt of a signal from the sensing mechanism (12). According to a first aspect, the safety mechanism (14) is arranged to rapidly displace the active portion (26) away from a user extremity. Alternatively, according to a second aspect, the safety mechanism (14) is arranged to rapidly urge an extremity of the user away from the active portion (26) of the power tool (10).

Table saw with a tool return system