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.

Protective Sensor System for a Hand-Held Power Tool

The disclosure relates to a hand-held power tool comprising a housing having a handle portion, a tool portion for a tool that can be driven to move linearly and/or oscillate, an operator part on the housing side for the activation of the tool and/or the power tool on the user side, a drive unit for producing a working movement of the tool, an electronic unit for supplying the drive unit at least with open-loop control and/or closed-loop control signals, and an operating voltage unit for making an electrical DC voltage available, the drive unit comprising at least one excitation actuator having a volume of an excitation-active material, which actuator is supplied with power by the operating voltage unit when operated and which is controlled in an open or closed loop control by the electronic unit.

SAFETY SYSTEM FOR FLAYING MACHINE

The invention describes a safety system () for a working machine (), wherein an operator () is able to interact with the machine (), wherein the system () comprises a transceiver unit () associated with the operator (), a central processing unit (), associated with the working machine (), so as to receive signals from the transceiver unit (), conductive gloves () comprising electrical conduction means () configured to operate in ordinary functioning (I) or in an alarm condition (II), electrical connection means () configured to connect the transceiver unit () to the conductive gloves (), and wherein the central processing unit () is configured to recognize whether the operator () is authorized for use of the machine (), and to transmit an alarm signal (Sx) so as to disable the machine () if the second operative condition (II) occurs. 2100848411. The safety system () according to claim 1 , wherein said electrical conduction means () comprises a first electrical conductor circuit () available over the entire structure of said machine () and having a frequency signal (Sf) passing through it.310071711811581. The safety system () according to claim 2 , wherein said transceiver unit () comprises a first control module () configured to detect the presence claim 2 , on said conductive gloves () claim 2 , of said frequency signal (Sf) representing a contact between a blade () and at least one of said conductive gloves ().41007111111. The safety system () according to claim 3 , wherein said first control module () is further configured to block the transmission of said presence signal (Tx) in the event of detection of the presence of said frequency signal (Sf) claim 3 , so that said processing unit () will not enable the operation of said machine ().5100858583. The safety system () according to claim 1 , wherein said electrical conduction means () comprises a second electrical conductor circuit () connected to an isolated electrical circuit ().6100717128557. The safety system ...

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 ...

SYSTEM AND METHOD FOR REDUCING FALSE POSITIVE DETECTION BETWEEN A HUMAN AND A MOVING IMPLEMENT IN A POWER TOOL

A method for detection of false positive condition that an object is in contact with an implement in a power tool includes sampling an electrical signal received from the implement, identifying in-phase and a quadrature components of the sampled electrical signal, identifying a magnitude of each of the samples with reference to the in-phase component and the quadrature component for the samples, detecting an object approaching the implement with reference to the plurality of samples, identifying a signal-to-noise ratio for the samples, and identifying a false positive condition for the detected object with reference to the identified signal-to-noise ratio for the identified samples. 1. A method for detection of false positive condition that an object is in contact with an implement in a power tool comprising:sampling an electrical signal received from the implement to generate a plurality of samples of the electrical signal;identifying an in-phase component and a quadrature component of each sample of the electrical signal;identifying a magnitude of each sample of the electrical signal with reference to the in-phase component and the quadrature component for each sample of the electrical signal;detecting an object approaching the implement with reference to the plurality of samples;identifying a signal-to-noise ratio for the electrical signal with reference to the identified magnitude for each of the plurality of samples of the electrical signal; andidentifying a false positive condition for the detected object with reference to the identified signal-to-noise ratio for the plurality of samples of the electrical signal.2. The method of claim 1 , the identification of the signal-to-noise ratio further comprising:identifying a mean for the plurality of samples of the electrical signal with reference to the identified magnitude for each sample in the plurality of samples in the electrical signal;identifying a standard deviation for the plurality of samples of the ...

WORKING ROBOT AND ROBOT SYSTEM

Provided are a working robot and a robot system serving as a type coexisting with humans and improving reliability in safety. The working robot includes an arm, a driving mechanism, and a controller. The arm includes a plurality of link members that are coupled rotatably around shafts. The driving mechanism includes a driving source, and a plurality of power transmission paths capable of transmitting motive power from the driving source to the link members with mutually different numbers of revolutions or torques. The controller switches the power transmission paths, based on a sensing result for a moving object including a human body in a certain area. 1. A working robot comprising:an arm including a plurality of link members rotatably coupled around shafts;a driving mechanism including a driving source, and a plurality of power transmission paths capable of transmitting motive power from the driving source to the link members with mutually different numbers of revolutions or torques; anda controller that switches the power transmission paths, based on a sensing result for a moving object including a human body in a certain area.2. The working robot according to claim 1 , wherein switches to a power transmission path that transmits the motive power to the link members with a relatively large number of revolutions or a relatively high torque, to drive the arm, when the sensing result indicates that the moving object is not present; and', 'switches to a power transmission path that transmits the motive power to the link members with a relatively small number of revolutions or a relatively low torque, to drive the arm, when the sensing result indicates that the moving object is present., 'the controller3. The working robot according to claim 1 , further comprising:a first motor serving as a driving source with a relatively large maximum output value; and switches to a first power transmission path that transmits motive power from the first motor to the link members, ...

Arrangement and method for operating a storage and retrieval unit

A method and an arrangement for operating a storage and retrieval unit ( 3 ) are specified. A rail line ( 1 ) respectively a power supply rail ( 6 ) for the storage and retrieval unit ( 3 ) is set to a risk mode voltage, the rectified value/effective value of which lies below a minimum rectified value/minimum effective value necessary to move the storage and retrieval unit ( 3 ) but above zero, if a risk posed by the storage and retrieval unit ( 3 ) is detected. Alternatively or in addition, the voltage applied to the rail line ( 1 )/power supply rail ( 6 ) can also be investigated in the storage and retrieval unit ( 3 ) for modulated change signals. The applied voltage is passed on to a traction motor ( 5 ) of the storage and retrieval unit ( 3 ) only when it has been established that the normal operation-traction voltage and not the risk mode voltage has been applied to the rail line ( 1 )/power supply rail ( 6 ).

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 ...

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. 1. A table saw comprising:a frame structure with a generally flat work surface;a rotatable circular blade mounted on an arbor and being adapted to have at least a portion of said blade extending above the flat work surface in position to cut a work piece;a drive motor with an output shaft mounted to the frame structure for powering the saw blade;a sensing mechanism for generating at least a first actuation signal responsive to predetermined sensed characteristics relating to the existence and/or movement of a person in close proximity thereto;a retracting mechanism located beneath said work surface for rapidly moving the blade downwardly below the work surface responsive to said first actuation signal being received.2. A table saw as defined in wherein said retracting mechanism comprises:an arm structure that has a first pulley operatively coupled to said arbor, a second pulley operatively coupled to said output shaft of said drive motor and a flexible belt coupling said first and second pulleys, said arm structure pivoting about an axis concentric with said output shaft so that the tension in said belt is relatively constant regardless of the position of the blade relative to said work surface; andan actuator connected to said frame structure and said arm structure for rapidly moving said arm structure to ...

LOGIC CONTROL FOR FAST-ACTING SAFETY SYSTEM

Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable. 1. A woodworking machine comprising:a cutting tool for cutting workpieces;at least one motor configured to drive the cutting tool;a detection system configured to detect a dangerous condition associated with the cutting tool;a brake mechanism having at least one replaceable single-use component, and controllable to stop the cutting tool if the dangerous condition is detected; anda control system configured to detect whether the single-use component has been used, and to disable the at least one motor until the single-use component has been replaced.2. The machine of claim 1 , where the at least one replaceable single-use component includes a fusible member.3. The machine of claim 2 , where the control system is configured to detect whether the fusible member has been melted.4. The machine of claim 2 , where the control system is configured to test the electrical continuity of the fusible member.5. The machine of claim 2 , where the brake mechanism includes a capacitor adapted to store electrical charge claim 2 , and where the control system is configured to determine the capacitance of the capacitor.6. (canceled)7. The machine of claim 2 , where the brake mechanism includes a capacitor adapted to store electrical charge claim 2 , and where the control system is configured to determine the electrical charge stored on the capacitor.8. (canceled)9. A method of controlling a saw claim 2 , where the saw ...

DEVICE AND METHOD FOR SAFETY INSTRUMENTED CONTROL OF A MACHINE

A device and a method for safety instrumented control of a machine, wherein the machine is equipped with an electric drive, is operated by a person and has at least one metal component capable of causing injury in the event of a mechanical interaction with said person. The device is equipped with a left-hand and right-hand conductive glove in the form of an under-glove, a left-hand and right-hand insulating glove in the form of an over-glove, a control device which controls the electric drive of the machine and to which the conductive gloves can be connected, and a resistance test device of the control device which compares the resistance between the left-hand and right-hand conductive gloves to a predetermined minimum resistance and a predetermined maximum resistance and prevents the drive from being switched on if the detected resistance is less than the minimum resistance or greater than the maximum resistance. 1. A device for safety instrumented control of a machine , which is equipped with an electric drive , which is operated by a person , and which has at least one metal component capable of causing injury in the event of a mechanical interaction with the person , the device comprising:a left-hand and right-hand conductive glove, which conduct the electricity, and which are to be worn by the person such that the gloves make contact with the skin of the person's hands,a left-hand and right-hand insulating glove, which comprise an electrical insulator, and which are to be worn by the person over the conductive gloves;with a control device, which controls the electric drive of the machine;a left-hand conducting connection between the left-hand conductive glove and the control device;a right-hand conducting connection between the right-hand conductive glove and the control device;the control device has an operating condition in which it supplies the electric drive with power and monitors the voltage between the right-hand conductive glove and the left-hand ...

PROTECTION METHOD AND PROTECTION DEVICE FOR A HANDLING APPARATUS

The method and a device are for protecting persons and stationary or autonomously moving obstacles in front of stationary or autonomously moving handling apparatuses such as manufacturing, transport, inspection or service robots and their manipulators from collisions within their workspace by pressure sensors in protective covers filled with medium in such a manner that the medium is not supplied to each individual protective element from outside, but the protective elements in their interior, in addition to a pressure sensor, also comprise a pressure-increasing device, which sucks in the medium, preferably ambient air, and generates a pressure in the interior of the protective element, which is adjustable from a control device. 1. A method for protecting persons and stationary or autonomously moving obstacles in front of stationary or autonomously moving handling apparatus such as manufacturing , transport , inspection or service robots and their manipulators from collisions within their workspace by protective covers including one or several internal pressure sensors , characterized in that in the method a medium is supplied to each individual protective element , provided the medium is not supplied under pressure from outside generating excess pressure is generated in the interior of the protective element , which comprises an internal pressure increasing device in addition to one or several pressure sensor(s).2. A method according to claim 1 , characterized in that the medium comprises ambient air claim 1 , the protective element having suction channels claim 1 , and said method further comprises sucking said medium in the protective element through the suction channels claim 1 , and generating pressurized medium in the interior of the protective element at a pressure adjustable by a control device.3. A method according to claim 1 , characterized in that the method further comprises actuating on demand power supply of the integrated pressure-increasing device ...

Safety mat for safeguarding a technical installation

Safety mat for safeguarding an electrically driven installation, comprising a sensor, a rigid supporting body and an evaluation unit. The supporting body has a top side, a rear side and first and second side faces, adjoining the top and rear sides. The sensor has an active surface covering the top side of the supporting body. The rear side has an opening for contacting an evaluation unit arranged in the interior of the supporting body that is configured to provide an output signal depending on the actuation of the sensor. The first side face has a first cavity and the second side face has a second cavity. The rear side has a first and a second cable guide. The first cable guide connects the opening to the first cavity and the second cable guide connects the opening to the second cavity.

SAFETY SYSTEM

The safety system for a machine (), provided with a blade (), comprises: means () for detecting a dangerous condition for the safety of an operator; and a cutting-off apparatus () adapted to cut off the blade (), following the detection of the dangerous condition. 1112. A safety system for a machine () provided with a blade () that comprises:{'b': '2', 'means () for detecting a condition of danger for the safety to an operator; and'}{'b': 2', '12, 'a cutting-off apparatus () adapted to cut off the aforesaid blade () following detection of said dangerous condition.'}222112. The system according to claim 1 , wherein said cutting-off apparatus () includes at least one first movable cutting-off element () claim 1 , adapted to hit the blade ().32112. The system according to claim 2 , wherein said first movable element () is adapted to hit the blade () transversely to a first side thereof.422212. The system according to claim 2 , wherein the cutting-off apparatus () includes a second element () claim 2 , adapted to abut on the blade () at a position opposite the position in which the blade is hit by the first element.522. The system according to claim 4 , wherein the second element () is fixed.621222112210221. The system according to claim 4 , wherein the first element () or the second element () includes a cutting-off member () adapted to be inserted into a seat () of an abutting member () of the other element.72121122221. The system according to claim 6 , wherein the first element () includes said cutting-off member () and the second element () includes the abutting member ().8221212. The system according to claim 2 , wherein the cutting-off apparatus () includes elastic means () to send the first element against the blade ().922321212. The system according to claim 8 , wherein the cutting-off apparatus () includes a trigger () adapted alternatively to retain the first movable element () in a rest position wherein said elastic means () is preloaded or to release the ...

Piston for a Pneumatic Cylinder Including a Stress Concentration Structure

A pneumatic cylinder associated with a table saw includes a housing, a charge, and a piston assembly. The housing defines a cavity and is supported by a frame of a table saw. The charge is located within the cavity. The piston assembly is located within the cavity and includes an attachment structure engaged to the housing and a piston head releaseably connected to the attachment structure and in response to activation of the charge the piston head is configured to (i) disconnect from the attachment structure, and (ii) move away from the attachment structure. A swing arm of the table saw is configured to move from a raised position to a lowered position in response to movement of the piston head. 1. A pneumatic cylinder associated with a table saw comprising:a housing defining a cavity and supported by a frame of a table saw;a charge located within the cavity; anda piston assembly located within the cavity and including an attachment structure engaged to the housing and a piston head releaseably connected to the attachment structure and in response to activation of the charge the piston head is configured to (i) disconnect from the attachment structure, and (ii) move away from the attachment structure,wherein a swing arm of the table saw is configured to move from a raised position to a lowered position in response to movement of the piston head.2. The pneumatic cylinder of claim 1 , wherein the piston head is releaseably connected to the attachment structure by at least one stress concentration structure at which the piston head is configured to separate from the attachment structure upon fracture of the at least one stress concentration structure in response to activation of the charge.3. The pneumatic cylinder of claim 2 , wherein:the at least one stress concentration structure defines a notch and a minimum width at the notch, andthe at least one stress concentration structure is configured to fracture at the notch.4. The pneumatic cylinder of claim 3 , wherein: ...

MACHINE TOOL

A machine tool according to the present invention is provided with a door opening/closing device including a movable door, a door opening/closing drive motor configured to drive the movable door, a power transferring mechanism configured to transfer power of the door opening/closing drive motor to the movable door. The machine tool includes a disturbance torque estimation unit configured to estimate a disturbance torque applied to the door opening/closing drive motor at an opening/closing operation of the movable door, a torque comparison unit configured to compare the disturbance torque estimated by the disturbance torque estimation unit to a predetermined first upper limit and a predetermined first lower limit, and a motor stop unit configured to stop the opening/closing operation of the movable door when the torque comparison unit determines that the disturbance torque is larger than the first upper limit or smaller than the first lower limit. 1. A machine tool provided with a door opening/closing device including a movable door , a door opening/closing drive motor configured to drive the movable door , and a power transferring mechanism configured to transfer power of the door opening/closing drive motor to the movable door , the machine tool comprising:a disturbance torque estimation unit configured to estimate a disturbance torque applied to the door opening/closing drive motor at an opening/closing operation of the movable door;a torque comparison unit configured to compare the disturbance torque estimated by the disturbance torque estimation unit to a predetermined first upper limit and a predetermined first lower limit; anda motor stop unit configured to stop the opening/closing operation of the movable door when the torque comparison unit determines that the disturbance torque is larger than the first upper limit or smaller than the first lower limit.2. The machine tool provided with the door opening/closing device according to claim 1 , further comprising ...

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. 1. A woodworking machine having a cutting region for cutting workpieces , comprising:a movable cutting tool for cutting workpieces in the cutting region;a detection system adapted to detect a dangerous condition between a person and the cutting tool; andmeans for retracting the cutting tool at least partially away from the cutting region upon detection of the dangerous condition by the detection system.2. The woodworking machine of where the dangerous condition is contact between a person and the cutting tool.3. The woodworking machine of where the dangerous condition is proximity of a person and the cutting tool.4. A woodworking machine comprising:a work surface defining a cutting region;a cutting tool positioned to extend at least partially into the cutting region;a detection system adapted to detect a dangerous condition between a person and the cutting tool; andmeans for retracting the cutting tool below the work surface within approximately 14 milliseconds after the dangerous condition is detected by the detection system.5. The woodworking machine of where the dangerous condition is contact between a person and the cutting tool.6. The woodworking machine of where the dangerous condition is proximity of a person and the cutting tool. This application is a continuation of Ser. No. 13/442,290, filed Apr. 9, 2012, issuing as U.S. Pat. No. 8,408,106 on Apr. 2, 2013, which is a continuation of Ser. No. 13/374,290, filed Dec. 19, 2011, which is a continuation of Ser. No. 11/796,819, filed Apr. 30, 2007, issuing ...

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. 1. A woodworking machine having a cutting region for cutting workpieces , comprising:a movable cutting tool for cutting workpieces in the cutting region;a detection system adapted to detect a dangerous condition between a person and the cutting tool; andmeans for retracting the cutting tool at least partially away from the cutting region upon detection of the dangerous condition by the detection system.2. The woodworking machine of where the dangerous condition is contact between a person and the cutting tool.3. The woodworking machine of where the dangerous condition is proximity of a person and the cutting tool.4. A woodworking machine comprising:a work surface defining a cutting region;a cutting tool positioned to extend at least partially into the cutting region;a detection system adapted to detect a dangerous condition between a person and the cutting tool; andmeans for retracting the cutting tool below the work surface within approximately 14 milliseconds after the dangerous condition is detected by the detection system.5. The woodworking machine of where the dangerous condition is contact between a person and the cutting tool.6. The woodworking machine of where the dangerous condition is proximity of a person and the cutting tool. This application is a continuation of Ser. No. 13/442,290, filed Apr. 9, 2012, issuing as U.S. Pat. No. 8,408,106 on Apr. 2, 2013, which is a continuation of Ser. No. 13/374,290, filed Dec. 19, 2011, which is a continuation of Ser. No. 11/796,819, filed Apr. 30, 2007, issuing ...

SERVOMOTOR CONTROL DEVICE AND PRODUCTION SYSTEM EQUIPPED WITH THE CONTROL DEVICE

A servomotor control device includes a servomotor control circuit for controlling an inverter such that an alternating current is supplied to a servomotor when receiving a safety signal, and for controlling the inverter such that the alternating current is not supplied to the servomotor when not receiving the safety signal, and a servomotor monitoring circuit for stopping the servomotor by stopping transmission of the safety signal to the servomotor control circuit when determining to stop the servomotor, and for stopping the servomotor by disconnecting supply of a direct current to the inverter with a power source disconnect circuit and stopping the transmission of the safety signal to the servomotor control circuit when determining that at least one of the power source disconnect circuit, the safety signal, and the servomotor control circuit is not normal. 1. A servomotor control device comprising:an inverter for driving a servomotor by converting a direct current into an alternating current and supplying the converted alternating current to the servomotor;a power source disconnect circuit for disconnecting supply of the direct current to the inverter;a servomotor control circuit for controlling the inverter such that the alternating current is supplied to the servomotor when receiving a safety signal, and for controlling the inverter such that the alternating current is not supplied to the servomotor when not receiving the safety signal; anda servomotor monitoring circuit for stopping the servomotor by stopping transmission of the safety signal to the servomotor control circuit when determining to stop the servomotor, and for stopping the servomotor by disconnecting the supply of the direct current to the inverter with the power source disconnect circuit and stopping the transmission of the safety signal to the servomotor control circuit when determining that at least one of the power source disconnect circuit and the servomotor control circuit is not normal.2. ...

MACHINE APPARATUS AND METHOD OF CONTROLLING THE SAME, REMOTE OPERATION APPARATUS, AND MAIN OPERATION APPARATUS

A machine apparatus that a user can more easily operate includes a machine driver that is mechanically driven, a main operation unit that operates the machine driver, a remote operation unit that transmits an operation instruction signal to the machine driver at a position apart from the main operation unit, a position determiner that determines a position of the remote operation unit, and a controller that, upon determining that the remote operation unit is located in a predetermined area, enables operations by the main operation unit, and upon determining that the remote operation unit is located outside the predetermined area, disables at least some operations by the main operation unit. 1. A machine apparatus comprising:a machine driver that is mechanically driven;a main operation unit that operates said machine driver;a remote operation unit that transmits an operation instruction signal to said machine driver at a position apart from said main operation unit;a position determiner that determines a position of said remote operation unit; anda controller that, upon determining that said remote operation unit is located in a predetermined area, enables operations by said main operation unit, and upon determining that said remote operation unit is located outside the predetermined area, disables at least some operations by said main operation unit.2. The machine apparatus according to claim 1 , wherein said position determiner determines claim 1 , based on a distance between said main operation unit and said remote operation unit claim 1 , whether said remote operation unit is located in the predetermined area.3. The machine apparatus according to claim 1 , wherein said position determiner determines claim 1 , based on a state of wireless communication between said main operation unit and said remote operation unit claim 1 , whether said remote operation unit is located in the predetermined area.4. The machine apparatus according to claim 1 , wherein said position ...

ELECTRIC BANDSAW DEVICE

The present invention is directed to an electric handsaw devices equipped with safety arrangement, capable of halting rotation of the bandsaw upon sensing of a body in the proximity of the blade of said bandsaw. The safety arrangements include braking pads or tension releasing means. 1. An electric handsaw device capable of being operated by an operator comprising: a constructions having at least one continuous handsaw metal blade having two parallel faces; and at least two rotating wheels having at least a distance from each other in at least one direction, both connected to a motor; wherein said at least one continuous handsaw metal blade is placed on said at least two wheels so that it is held in constant tension; and wherein when said rotating wheels are being rotated by said motor, said at least one continuous handsaw metal blade is rotating on said wheels in the rotating direction;', 'at least one sawing surface being perpendicular to said construction;, 'A sawing component comprisingwherein said sawing surface comprises an elongated gap wherein said at least one continuous handsaw metal blade is fitted therein; and wherein a safety area at the proximity of said fitted at least one continuous handsaw metal blade is predefined; at least one first sensing element placed above the sawing surface;', 'at least one second sensing element placed below the sawing surface;, 'A sensing component comprising 'at least two parallel halting pads, each located facing one face of the at least one continuous handsaw metal blade; having a sawing operation mode wherein said at least two halting pads are distant from said faces of continuous handsaw metal blade; and a halting operation mode wherein said at least two halting pads are moving towards said continuous handsaw metal blade and with the rotating direction; said halting component is in communication with said sensing component;', 'A halting component comprisingWherein upon said sensing component sensing a body in said ...

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 ...

DETECTION SYSTEM FOR A SIDE LOADING WASTE COLLECTION VEHICLE

A detection system for a side loading waste collection vehicle with a side lifting arm for lifting and lowering a bin and a gripping assembly near the end of the lifting arm, including one or more sensors to detect the presence of an object or person, control means to receive and process sensor input to control the operation of the lifting arm, wherein the detection system defines two zones where a first zone covers the space through which the bin moves between a raised and a lowered position and a second zone is the space surrounding the first zone; in use the movement of the lifting arm is stopped when a person or object is detected within the first zone and when a person or object is detected moving within the second zone. 1. A detection system for a side loading waste collection vehicle with a side lifting arm for lifting and lowering a bin and a gripping assembly near the end of the lifting arm , includingone or more sensors to detect the presence of an object or person;a camera mounted on or adjacent the lifting arm, the camera able to detect the colour of the bin or the colour of a lid of the bin; andcontrol means to receive and process sensor input and input from the camera to control the operation of the lifting arm,wherein the detection system defines two zones where a first zone covers the space through which the bin moves between a raised and a lowered position and a second zone is the space surrounding the first zone, and wherein in use the movement of the lifting arm is stopped when a person or object is detected within the first zone and when a person or object is detected moving within the second zone, and wherein the control means controls the operation of the lifting arm based on the colour of the bin or the lid of the bin.2. A detection system as claimed in claim 1 , wherein an alarm is activated when the presence of the object or person is detected in the second zone.3. A detection system as claimed in claim 1 , wherein the movement of the ...

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.

BRAKE CARTRIDGES AND MOUNTING SYSTEMS FOR BRAKE CARTRIDGES

Safety systems for power equipment, components, cartridges and mounting systems for cartridges are disclosed. The safety systems, components, cartridges and mounting systems are specifically applicable for woodworking equipment such as saws. A cartridge system for use in safety systems for power tools might include a cartridge adapted to perform a predetermined action when triggered, where the predetermined action causes the deceleration and/or retraction of a working portion of the power tool, where the cartridge includes a first connector, and where a second connector is mounted in the power tool and adapted to connect to the first connector. 1. A brake cartridge system for use in safety systems for power tools , the system comprising:a brake cartridge configured to mount in a power tool and adapted to brake a working portion of the power tool when triggered; anda key adapted to secure the brake cartridge in the power tool.2. The brake cartridge system of claim 1 , where the brake cartridge includes an aperture through which at least part of the key passes.3. The brake cartridge system of claim 2 , where the aperture and key are configured so that the key may pass through the aperture in only one orientation.4. The brake cartridge system of claim 2 , where the key is adapted to turn to lock the brake cartridge in the power tool.5. The brake cartridge system of claim 4 , where the brake cartridge and key are configured so that the key can turn only when a predetermined portion of the key has passed through the aperture.6. The brake cartridge system of claim 1 , where the key includes a handle adapted to be grasped by a user.7. The brake cartridge system of claim 6 , where the handle is configured so that a user may turn the key.8. A brake cartridge system for use in safety systems for power tools claim 6 , the system comprising:a brake cartridge adapted to brake a working portion of the power tool when triggered;a mounting pin in the power tool; andan aperture in ...

SAFETY APPARATUS FOR PROTECTING AN OPERATOR OF AN ELECTRICALLY POWERED SAW

There is provided an emergency braking apparatus for stopping travel of the blade of an electrically powered saw of the type incorporating a cutting table through which the blade of the saw passes during a cutting operation. The apparatus comprises a braking jaw and a movable jaw spaced apart from the braking jaw for reception of the blade of the saw between the braking jaw and the movable jaw. The apparatus also comprises a driver for driving the movable jaw from a retracted position into contact with a side face of the blade to force an opposite side the blade against the braking jaw and thereby clamp the blade between the braking jaw and the movable jaw, a pressure chamber for holding a fluid at a predetermined pressure, and an actuator operable in response to an emergency braking signal to release the pressurised fluid in the pressure chamber to drive the driver against the movable jaw whereby the movable jaw is driven into contact with the side face of the blade. 1. An emergency braking apparatus for stopping travel of the blade of an electrically powered saw of the type incorporating a cutting table through which the blade of the saw passes during a cutting operation , the apparatus comprising:a braking jaw;a movable jaw spaced apart from the braking jaw for reception of the blade of the saw between the braking jaw and the movable jaw;a driver for driving the movable jaw from a retracted position into contact with a side face of the blade to force an opposite side the blade against the braking jaw and thereby clamp the blade between the braking jaw and the movable jaw;a pressure chamber for holding a fluid at a predetermined pressure; andan actuator operable in response to an emergency braking signal to release the pressurised fluid in the pressure chamber to drive the driver against the movable jaw for driving the movable jaw into said contact with the side face of the blade.2. A braking apparatus according to claim 1 , wherein the moveable jaw and the ...

Control system for controlling the access to processing machinery

The system comprises includes a fence inside which machines are arranged that are potentially dangerous for the operators, forming part of a processing plant for processing web material and producing rolls. A passage counting the number of operators entering the fence and exiting therefrom is so controlled as to be accessible only when the machines are not working and to allow a partial operation of the machines inside the fence under particular safety conditions.

Fiber Optic Safety System

Safety systems for operating equipment have a source of visible light, a first signal light transmitter, a first signal light receiver, preferably a second signal light transmitter and second signal light receiver. A fiber optic bundle with at least one section of illuminated cable emits the visible light and carries the signal light. The signal light follows an optical circuit through the fiber optic bundle from the signal light transmitters to the signal light receivers. The signal light receivers are connected to suitable controls of the system such that if a predetermined light signal is not received by the signal light receiver(s), the operating equipment will stop and/or alarms will be generated. The fiber optic bundle is connected to optical pull switches which interrupt the light circuit if a person applies a predetermined pull force to the optical fiber bundle. 1. Operating equipment comprising:a structure defining a confined space large enough to a contain a human adult;a supply of at least one utility to said structure;a supply controller which controls the amount of at least one utility supplied to said structure and changes the condition in said confined space from a first condition which is tolerable for an adult human to a second condition which presents an imminent danger to the survivability of a human adult;a safety system for said confined space, said safety system comprising:a fiber optic bundle;a visible light source which provides visible light, said visible light source optically connected to said fiber optic bundle;a first signal light source which emits a first signal light having first light characteristics, said first signal light source optically connected to said first optical bundle;a second signal light source which provides a second signal light having second light characteristics which are different from said first light characteristics, said second signal light source optically connected to said first optical bundle;said fiber optic ...

ELECTRIC CUTTING TOOL WITH AUTOMATIC EMERGENCY STOP

A safety cutting device including: an electrically conductive cutting member; a motor for actuating the cutting member; a handle for gripping the tool; and an emergency stop device that is sensitive to a user making contact with the cutting member. The tool further includes: at least a first and at least a second manual contact electrode; an electrical monitoring circuit having the first manual contact electrode and the cutting member; a device for measuring a monitoring voltage between the cutting member and the second manual contact electrode; a comparator for comparing at least one electrical monitoring characteristic with an electrical threshold characteristic, the comparator driving the emergency stop device. The safety cutting device is applicable to secateurs and shears in particular. 1. Safety cutting tool comprising:an electrically conductive cutting element;{'b': '20', 'an electrically controlled actuating motor () of the cutting element;'}a gripping handle of the cutting tool for the hand of an operator, the gripping handle being electrically insulated from the cutting element;a cutting trigger control activated by the hand of the operator grasping the gripping handle, the cutting trigger control being electrically insulated from the cutting element; ["at least one first and at least one second manual contact electrode, the first manual contact electrode and the second manual contact electrode being electrically insulated from each other, and positioned on at least either the gripping handle of the tool or the cutting trigger control so as to be touched simultaneously by the operator's hand when he grasps the gripping handle;", 'an electric monitoring circuit including the first manual contact electrode and the cutting element, the electric monitoring circuit is capable of closing upon a simultaneous contact of the operator with said first manual contact electrode and with the cutting element;', 'an electric generator of a monitoring current in the first ...

PRESSURE SENSITIVE MAT

A pressure sensitive mat is provided. The pressure sensitive mat includes a nanocomposite film, a first conductive foil, an oxide layer interposed between a first side of the nanocomposite film and the first conductive foil, a second conductive foil and a nanotube film interposed between a second side of the nanocomposite film, which is opposite the first side, and the second conductive foil. 1. A personal transportation system , comprising:a body configured to transport an individual from a first location to a second location,the body comprising doors which are movable in a plane between open and closed positions;an entryway located at the first location and comprising a pressure sensitive mat configured to detect a presence of the individual out of the plane in which the doors are movable; anda control system configured to control movements of the doors between the open and closed positions based on a reading of the pressure sensitive mat.2. The personal transportation system according to claim 1 , further comprising additional sensors configured to sense individuals in and around the entryway wherein:the body comprises an elevator car and the doors comprise first and second elevator doors, andthe reading of the pressure sensitive mat and readings of the additional sensors are analyzed and interpreted by the control system for executing corresponding door actions.3. The personal transportation system according to claim 2 , wherein claim 2 , in an event the reading of the pressure sensitive mat and readings of the additional sensors are indicative of an individual being present in the plane claim 2 , the control system controls the movements of the doors by at least one of:maintaining the doors in an open condition;continuing an opening of the doors; andreversing a closing of the doors.4. The personal transportation system according to claim 2 , wherein claim 2 , in an event the reading of the pressure sensitive mat and readings of the additional sensors are ...

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 ...

Projection welding machine

The present disclosure relates to a projection welding machine, and more particularly, to a projection welding machine for avoiding an accident in which an operator's hand gets caught between an upper electrode unit and a lower electrode unit, and preventing a fault in welding operation from occurring due to incorrect seating of a nut on the lower electrode unit.

Detection systems for power equipment

Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood.

Detection systems for power equipment

Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood.

Patent DE3645015C2

Vehicle-mounted motor drive apparatus

[목적] [purpose] 모터(101)의 회전중에 가동체에 물체등이 끼이면, 즉시 모터(101)의 회전을 정지시키고 세이프티기능을 충분히 발휘시키는 세이프티모터구동장치를 제공한다. If an object or the like is caught in the movable body during the rotation of the motor 101, the safety motor driving device is provided to immediately stop the rotation of the motor 101 and fully exhibit the safety function. [구성] [Configuration] 개폐가능한 가동체를 가동시키는 모터(101)와, 모터(101)를 선택적으로 구동 또는 정지하는 모터구동수단(102)과, 모터(101)의 기동보상기간내에 모터(101)에 흐르는 전류치를 측정하는 전류측정수단(103)과, 전류측정수단(103)으로 측정된 전류치의 일정기간마다의 증가분을 검출하는 전류치 변동검출수단(104a)과, 검출한 전류치 증가분의 극성에 따라 모터(101)의 구동을 속행시키는 제1제어신호 또는 모터(101)의 구동을 즉시 정지시키는 제2제어신호를 모터구동수단(2)에 공급하는 모터제어수단(4b, 4c)을 구비한다. The motor 101 for operating the movable body which can be opened and closed, the motor driving means 102 for selectively driving or stopping the motor 101, and the current value flowing through the motor 101 within the start compensation period of the motor 101 are measured. The current measurement means 103, the current value fluctuation detecting means 104a for detecting an increase of the current value measured by the current measurement means 103 for each constant period, and the polarity of the detected current value increase is determined by the motor 101. Motor control means 4b, 4c for supplying the motor control means 2 with a first control signal for continuing the drive or a second control signal for immediately stopping the drive of the motor 101 are provided. [목적] [purpose] 전원전압과, 주위온도의 변동 및 각종 잡음의 영향을 받지 않고, 신속하게 이동방향의 변환을 할 수 있고, 소형, 경량으로 부품점수가 적은 파워윈도우용 모터구동장치를 제공한다. Provided is a motor drive device for a power window that can be quickly changed in the moving direction without being influenced by power supply voltage, ambient temperature fluctuations and various noises, and has small and light weight and low component points. [구성] [Configuration] 회전방향에 따라 윈도우를 상승 또는 하강시키는 모터(101)와, 모터(101)의 회전방향을 지정하는 변환스위치(106U, 106D)와, 모터(101)의 회전방향별 푸시스위치(102U, 102D)와, 푸시스위치(102U, 102D)의 조작으로 모터(101)의 회전을 자기유지하는 회전자기유지회로(112U, ...

Machine tool monitoring device and tool containing monitoring device

本发明涉及一种机床监测装置，它具识别装置(32)，设计用于借助于对辐射(S)的谱分析处理，识别出在机床工作部位(34)里存在的材料种类，尤其是人体组织。建议：识别装置(32)具有一个传感器单元(50)，它具有至少一个用于在波长范围(WL2)内检测辐射的敏感范围(64)，这波长范围至少部分地在红外谱(72)里。

Safety device for movable parts, preferably for window raisers and sun roofs of motor vehicles

The safety device is provided for movable parts, in particular for window raisers and sun roofs for motor vehicles. The movable part is moved by means of a drive motor into a closed position over a hazardous clamping area in which foreign bodies can become jammed between the movable part and a resting part. As a result of the unavoidable delay during the processing of signals and the inertia of the mechanically moved part there is the risk of the foreign body becoming jammed between the movable part and the resting part despite the safety device. As the movable part closes the adjustment speed is reduced in the hazardous clamping area. As a result, the movable part can stop momentarily or reverse its direction of movement in the event of danger. As a result of the low speed, the inertia of the mechanical parts does not have disadvantageous effects. The safety device is used in particular for electrically activated window raisers and sun roofs of motor vehicles.

Safety device for moving parts

Work equipment and double-armed work equipment

Process for protecting people in the environment of a moving machine

Es wird ein Verfahren zum Schutz von Menschen in einer Umgebung einer beweglichen Maschine, insbesondere im Rahmen einer Mensch-Roboter-Kollaboration, vorgeschlagen, welches umfasst, dass die Umgebung mittels einer Schutzeinrichtung überwacht wird, die dazu ausgebildet ist, einen oder mehrere kinematische Parameter eines jeweiligen in der Umgebung befindlichen Objekts zu erfassen und die bewegliche Maschine in Abhängigkeit von erfassten kinematischen Parametern des jeweiligen Objekts zu einer Schutzmaßnahme anzusteuern. Dabei erfasst die Schutzeinrichtung Polarisationseigenschaften sowie eine Bewegungsmodulation des jeweiligen Objekts, in Abhängigkeit von welchen das jeweilige Objekt im Hinblick darauf klassifiziert wird, ob es sich bei dem jeweiligen Objekt um einen Menschen handelt. Dann, insbesondere nur dann, wenn das jeweilige Objekt als Mensch klassifiziert wurde, steuert die Schutzeinrichtung die bewegliche Maschine in Abhängigkeit von erfassten kinematischen Parametern dieses jeweiligen Objekts, insbesondere in Abhängigkeit von dem Ort und der Geschwindigkeit des jeweiligen Objekts relativ zu der beweglichen Maschine, zu der Schutzmaßnahme an.

Patent DE9000157U1

Arrangement for access control of mining vehicles

A safety device utilizing far infrared rays for use with a press

A safety device, used for automatic stopping of a slide of the press consists of an infrared condensing and detecting system for sensing a signal of far infrared radiation, a filtering and amplifying section for filtering and amplifying the far infrared radiation in a specified wavelength range corresponding to the human body, the specified range of wavelengths being distinct from any noise other than the human body, and a comparing and determining section for determining whether or not the human body is in safety or dangerous state.

Drive mechanism for closing parts in motor vehicles

Protective sensor system for a hand-held power tool

本发明涉及一种手持式电动工具机（10），包括：具有手柄区域（40）的壳体（20），用于能线性地和/或振荡地驱动的工具（60）的工具区域（50），用于在使用者侧激活工具（60）和/或电动工具机（10）的、壳体侧的操作部件（30），用于产生工具（60）的工作运动的驱动单元（80），用于为驱动单元（80）加载至少控制和/或调节信号的电子单元（200），用于提供直流电压的工作电压单元（90），其中驱动单元（80）包括至少一个具有激励激活材料的体积的激励执行器（100），所述激励执行器：在运行时由工作电压单元（90）供电，由电子单元（200）控制或调节。本发明提出，保护传感器单元（130）包括用于对使用者（180）的身体部分与所述工具区域（50）的接触进行检测的接近或接触传感器（140），所述保护传感器单元如此与所述驱动单元（80）耦合，使得在不期望地接近或接触时断开所述驱动单元（80）。

Electric press

본 발명은 안전성이 높은 전동 프레스를 제공하기 위한 것이다. The present invention is to provide a highly reliable electric press. 본 발명에 따르면 메인 CPU(1)는 서보드라이버(10)로부터 신호에 의해 램(51)이 소정의 위치에 있을 때에는 검출 신호를 릴레이(2)에 출력하고 뮤트 신호를 에리어 센서(30)에 전달한다. 서브 CPU(3)는 엔코더(9)의 위치 신호에 의해 램(51)이 소정의 상태에 있을 때에는 검출 신호를 릴레이(4)에 출력하고 뮤트 신호를 에리어 센서(30)에 전달한다. 메인 및 서브 CPU는 서로 감시하여, 즉 메인 CPU(1)는 릴레이(4)의 출력을 체크하여 뮤트 신호가 뮤트 신호가 출력되지 않는 때에는 릴레이(2)를 오프한다. 그리고 서브 CPU(3)의 상태와 메인 CPU(1)의 상태를 비교하여, 양자가 상호 일치하면 릴레이(4)의 이상을 판단한다. 서브 CPU(3)도 동일한 양식으로 동작을 행한다. The main CPU 1 outputs a detection signal to the relay 2 when the RAM 51 is at a predetermined position by a signal from the servo driver 10 and transmits a mute signal to the area sensor 30 do. The sub CPU 3 outputs a detection signal to the relay 4 and transmits the mute signal to the area sensor 30 when the RAM 51 is in a predetermined state by the position signal of the encoder 9. [ The main CPU 1 checks the output of the relay 4 and turns off the relay 2 when the mute signal does not output a mute signal. Then, the state of the sub CPU 3 is compared with the state of the main CPU 1, and if the two coincide with each other, the relay 4 is judged to be abnormal. The sub CPU 3 also operates in the same manner. 전동 프레스, CPU, 에리어 센서, 오작동. Electric press, CPU, area sensor, malfunction.

Safety control system for power operated equipment

A safety control system for power operated equipment ensures operator safety by immediately disconnecting or reversing the power drive from a power driven rotating member such as a circular blade of a meat trimming knife or a toothed feed shaft of a meat skinning machine, upon a metal conductive glove worn by the operator, contacting the blade or toothed shaft or other electrically isolated portion of the equipment. The operator's glove is electrically connected to a safety switch which immediately disconnects or reverses the power drive from the rotating member upon the glove completing a circuit upon contact with the electrically isolated portion of the equipment. A moisture impervious dielectric plastic glove preferably is worn by the operator to prevent the moisture in the meat from conducting current between the metal glove and isolated machine portion until the plastic glove is cut and contact made with the metal glove. A switch requires manual actuation to connect the power drive to the rotatable member. The metal gloves are connected to the safety switch by electrodes secured to the operator's wrists in close proximity to the metal gloves. In a second embodiment the gloves are connected to the safety switch by a pair of metal electrodes mounted on the operator's garment adjacent the thigh areas which contact another pair of electrodes provided by a pair of pivotally mounted conductive arms which extend outwardly from the power operated equipment. A dielectric platform may also be used to completely electrically isolate the operator from all metal components of the skinning machine.

Personal Protective Equipment and Managing System Thereof

A personal protective equipment and managing system thereof are disclosed for providing a user necessary protection in a hazardous environment, which is characterized in that the personal protective equipment can communicate with a reader for calculating a use time of the personal protective equipment in the hazardous environment. A wireless identification element is disposed on a main body. The wireless identification element comprises information therein for the reader to identify, whereby the use time of the personal protective equipment can be calculated.

Robot system able to secure worker safety

A robot (24) of a robot system (10) performs a desired operation by an operation motor (26) and moves along a route (22) by a movement motor (28). The robot system (24) includes a robot power cutoff device (42) for cutting off the power supply to the operation motor (26) when making the robot (24) move from one station (12) to another station (14) across the worker passage (16), a cutoff state monitoring device (42b) for monitoring the cutoff state of the power supply to the operation motor (26), and an emergency stop device (40,44). The emergency stop device (40,44) cuts off the power supply to the movement motor (28) so as to make the robot (24) stop on an emergency basis, when it is detected that the power supply to the operation motor (26) has not been cut off and the robot (24) enters the predetermined section above the worker passage (16).

SAFETY MEANS FOR MOTOR MACHINES, PARTICULARLY FOR MEAT STRIPPING MACHINES.

La présente invention concerne un moyen de sécurité pour les machines à moteur comprenant un gant de sécurité (20) en treillis métallique étudié pour être porté par un opérateur de la machine. La machine avec lequel on l'utilise a un bâti (12) mis à la terre, un moteur électrique (16), un commutateur marche-arrêt (18), le moteur électrique étant relié à une source de courant électrique par le commutateur marche-arrêt. Le gant en treillis métallique (20) de l'opérateur est relié à l'antenne (44) d'un émetteur radio (42) porté par l'opérateur. Le coupe-circuit comprend un récepteur radio (35) qui reste fermé lors de la réception d'un signal électromagnétique, c'est-à-dire un signal radio, mais qui s'ouvre lorsque l'antenne (44) de l'émetteur radio (42) est mise à la terre par le bâti (12) grâce au gant en treillis métallique (20) touchant le bâti, ce qui sert à interrompre la transmission du signal. Cela provoque l'interruption de l'alimentation en électricité du moteur (16). Application pour assurer la sécurité du personnel sur les machines à dépouiller la viande.

Robot interaction system

FIELD: process engineering. SUBSTANCE: invention relates to robot system accommodated at rolling mill or related workstation including robot with its control station. Robot control system allows operating functions that provide for robot-to-human being interface with various types of interaction there between and affect that interface. Types of operation and operating conditions are adapted or adaptable to robot automation level and/or various positioning in time and/or point in said interaction and in working space. Besides, system allows fully automated interaction and selective cooperation. EFFECT: flexible adaptation to whatever interaction mode. 12 cl, 3 dwg

Multi-function crimping accident prevention device of the press machine

본 발명은 프레스 장치용 다기능 압착사고 방지장치에 관한 것으로, 작업자가 인위적으로 스위치를 작동하지 않고서도 프레싱부가 하강하는 과정에서 가압해제센서가 프레싱부의 프레싱부재보다 먼저 작업자 손과 접촉된 후 중간접촉센서와 접촉됨과 동시에 메인회로스위치를 작동시켜 메인전원을 차단함에 따라, 메인차단스위치의 직접작동방식에 비해 전원차단이 훨씬 신속하게 이루어질 수 있도록 한 기술이다. 또한 비접촉방식센서와 달리 접촉방식에 의한 감지 및 신호전달 구조를 갖도록 함으로써 기존 근접센서 구조에 비해 프레싱부 정지 시점까지의 오차거리를 최소화할 수 있도록 함은 물론, 오작동 가능성도 낮출 수 있는 기술이다.

Safety device for bandsaw

The saw (1) comprises means (4) for tensioning the blade (8) so that the blade (8) can be placed, as desired, in the tensioned or relaxed state. The device comprises means (10, 20) for operating means (4) for tensioning the blade (8). It also comprises means (60, 61, 55) for controlling the said operating means (10, 20) so as to cause the blade (8) to change from the tensioned state to the relaxed state, these means comprising a detector (60, 61) for detecting contact of the hand of the user with the blade (8) worn by the hand of the user. It furthermore comprises means (40, 43, 45) for braking the blade (8), which means are actuated by the means (4) for tensioning the blade. Use particularly for saws for sawing meat.

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.

Safety device for band saw.

Safety bars for roller mill - mounted in knockout bearings to prevent overloading

ELECTRO PORTABLE MOTORIZED PRUNER EQUIPPED WITH A MORE ERGONOMIC AND SAFE SAFETY DEVICE.

L'invention concerne un sécateur motorisé électroportatif (200) comprenant un outil de coupe (204) et un dispositif de sécurité agissant sur le fonctionnement dudit outil de coupe (204) lorsque ledit outil de coupe (204) entre en contact électrique avec le corps d'un opérateur tenant le sécateur, ledit dispositif de sécurité comprenant : - une borne, dite de référence, prévue pour être électriquement couplée audit outil de coupe (204) ; et - au moins une borne (104), dite de contact, prévue pour être électriquement couplée au corps dudit opérateur ; caractérisé en ce qu'au moins une borne de contact (104) est prévue sur/dans ledit sécateur (200). The invention relates to a power-operated motorized pruner (200) comprising a cutting tool (204) and a safety device acting on the operation of said cutting tool (204) when said cutting tool (204) comes into electrical contact with the body. of an operator holding the secateurs, said safety device comprising: - a so-called reference terminal designed to be electrically coupled to said cutting tool (204); and - at least one terminal (104), called a contact terminal, designed to be electrically coupled to the body of said operator; characterized in that at least one contact terminal (104) is provided on / in said pruning shears (200).

Device for determining the pressure exerted on a seal of an opening, in particular of a motor vehicle.

SAFETY SYSTEM FOR DRIVING A MOBILE PART SUCH AS A GLASS IN A MOTOR VEHICLE.

Un système de sécurité comprend un conducteur de lumière (2) combiné à un émetteur et un récepteur pour arrêter ou inverser le mouvement de fermeture automatique d'une vitre latérale (3) au cas où un bras, par exemple, serait pris entre la vitre et l'encadrement (1). Le conducteur de lumière (2) est incorporé dans un joint en caoutchouc (8) et relié à des moyens de traction (4) et un mécanisme à levier (5). Par l'intermédiaire de ce mécanisme, le bras, pris entre la vitre (3) et l'encadrement (1), produit la déformation du conducteur de lumière (2), ce qui est détecté par le récepteur, lequel arrête ou inverse le mouvement. L'invention est applicable notamment aux vitres latérales et aux toits ouvrants de voitures. A security system comprises a light guide (2) combined with a transmitter and a receiver to stop or reverse the automatic closing movement of a side window (3) in the event that an arm, for example, is caught between the window and framing (1). The light conductor (2) is incorporated in a rubber seal (8) and connected to traction means (4) and a lever mechanism (5). Through this mechanism, the arm, caught between the window (3) and the frame (1), produces the deformation of the light conductor (2), which is detected by the receiver, which stops or reverses the movement. The invention is particularly applicable to side windows and sunroofs of cars.

Safety device with a contact detector

The invention relates to a safety device with a contact detector, composed of an electromechanical contact sensor and a unit for electronically processing the information coming from the contact sensor. This safety device is characterised in that the said contact sensor 2 is composed of an electrically conducting flexible felt carpet 7, supplied with a d.c. electrical voltage and connected to the said electronic processing unit 3 by means of spaced electrodes 11, 12 integral with felt 7. The invention relates to the industry of safety devices using contact detection.

Improved system for detecting an obstacle interposed between a frame and a moving member

The present invention relates to a system for detecting an obstacle interposed between a frame and an associated moving member, of the type comprising two electrically conducting tracks held separated at rest by flexible elastic means, characterised in that the two tracks (31, 32) are connected over their entire length by at least one cloth (33, 34) having a high electrical resistance.

Safety device for protecting people present in the working area of a robot

The subject of the invention is a safety device for protecting people present in the working area of a robot which consists of a deformable wall delimiting the working zone and which is equipped with a detection means capable of giving rise to the emergency stop of the operation of the robot in the event of an impact of a person against the wall, or in the event of a mechanical impulse which could present a risk to the people. According to the invention, the deformable wall 24 consists of a mesh 26 which is held taut between two supports 28, the detection means 32 being mechanically controlled by a linking member 34 linked to the mesh 26 or included in the latter. Application to the protection of people moving around in the working area of a robot especially during the teaching or maintenance phases of the latter.

Device for determining the pressure exerted on a seal of a leaf (door), in particular of a motor vehicle

This device is characterised in that it comprises at least one light guide (4) arranged in the seal (3), and in that this guide (4) is associated with means (5) for emitting and receiving optical signals into and from this guide and with means (5) for analysing these signals in order to determine the pressure exerted on the guide and therefore on the seal.

Safety electronic contact detector

The invention relates to a safety electronic detector ensuring immediate triggering of the chain brake of a chain saw as soon as it comes into accidental contact with the user. It is characterised in that it comprises an electromagnet 10 for retracting a pin 14 allowing triggering of the chain brake driven by an electronic circuit 16 detecting the infinitesimal passage of current between the insulated tubular metal handle 1 of the chain saw unit 3 and the chain 8 via the body of the user, the whole being supplied with power by the magnetic flywheel of the chain saw, the current being rectified and stabilised by the electronic system 15. Application to the safety of forestry and scrub clearance equipment.

Monitoring strip for accident protection of a motor-driven gate leaf, door leaf or the like

A monitoring strip for accident protection of a motor-driven gate leaf, door leaf or the like, which can be fitted at least to an edge (20) pointing in the direction of the closing movement, of the gate leaf, door leaf or the like in order to detect an obstruction located in the movement path of the leaf, and which has a section which extends away over virtually the entire edge length and is easily deformable in the event of impact against an obstruction directed onto the edge, said section especially being in the form of a hollow rubber bead, in which at least one pair of electrical conductors - also in the form of conductor groups - which extend over its length are provided, which are held at a distance from one another during obstruction-free operation and to which a signal evaluation apparatus can be connected, which monitoring strip is designed for a construction which can be produced cost-effectively, is maintenance free, operates reliably, is independent of environmental influences and can easily compensate for fluctuations, for example of the temperature, in such a manner that the conductors are held at a distance from one another, without making contact, along their longitudinal extent, in every deformation position of the section.

PROTECTIVE CIRCUIT FOR A TAPE KNIFE CUTTING MACHINE

Logic control with test mode for fast-acting safety system

Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable. The control system also includes a test mode to test whether the detection system is working, to test whether various materials would be detected by the detection system, and/or to test whether various materials would trigger the reaction system.

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。

Security component and warehousing system for warehousing system

本发明涉及一种用于仓储系统(2)、特别是回转式仓储货架系统的安全组件(1)，安全组件包括：至少一块防水布(3)和一个用于固定防水布(3)的固定装置(4)，其中，防水布(3)限定防水布的一侧(6)上的危险区域(5)与防水布的另一侧(8)上的工作区域(7)的边界；和与危险区域(5)相关联的危险探测器(9)，危险探测器用于探测物品(10)进入危险区域(5)中的情况并且发出警报信号。本发明还涉及一种仓储系统(2)。

Machinery brake switch for safety bar mountings - to respond to bar deflections in any non-axial direction

The device is for detecting any movement of a mobile guard rail relative to its axis. Each end of the shaft is fitted with a hollow cap coaxial with a contact rod on a switch. The cap has a polygonal (usually square) external profile which is supported by a peripheral array of balanced, spring loaded supports. Any radial thrust on the bar shifts the bar end on its sprung supports, causing contact with the switch. The system is self-locating when the side thrust on the bar ceases. The device is used for safety bars to inhibit access to moving machinery by stopping the machine if the bar is displaced. It is suitable for calendars, guillotines, press nips, etc. as used in e.g. tyre component mfr.

SAFETY DEVICE WITH CONTACT DETECTOR

Arrangements for monitoring the movement of mining vehicles

The invention relates to arranging passage control for mining vehicles. A passage control apparatus is provided, preconfigured there to for use,with a set of movable passage control units. Each passage control unit (3) is provided with an identifier preconfigured therefor and arranged to be communicated to control means (20) of the passage control apparatus. The apparatus comprises a control user interface (23)configured to indicate (32)passage control units that, on the basis of identifiers received from at least some of the passage control units (3), are connected to the control means (20). The control means (20) are configured to assign (33) for passage control at least one passage control unit (3) from among the passage control units connected to the control means on the basis of an input received from a user. The control means are configured to monitor a passage control signal of the at least one passage control unit (3) assigned for passage control.

Safety circuit for servo-driven vehicle side-window - has conducting strips on window edge and on door frame with test circuit to detect obstructions

The closing edge (N) of the window and the corresp. window frame (D,L) are fitted with conducting strips. The test circuit (P) provides a pulsed test signal and measures the resistance between the window edge and the seals to detect any obstruction. The test signals are of a level safe for contact. The test circuit stops the window closing drive and reverses the drive. A safety interlock has an emergency control which overrides the safety circuit to enable the driver to close the window in an emergency e.g. to prevent a thief reaching into the vehicle. The system is also used to detect the window closed position and to switch off the servo drive. ADVANTAGE - Simple protection, no complex contact switches required.

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.

DEVICE FOR DETECTING PINCHING AND / OR CUTTING A RESISTIVE SEAL.

L'invention concerne un dispositif de détection du pincement et ou de la coupure d'un joint résistif comportant deux faces internes résistives (33,34) qui sont opposées l'une à l'autre et normalement isolées l'une de l'autre et viennent en contact lors du pincement du joint, la détection s'effectuant par la modification de la valeur d'un pont de résistances incluant les faces précitées. Il est caractérisé en ce qu'il comporte deux ponts de résistances montés en parallèle entre une première borne et une deuxième borne d'une source de tension continue, chaque pont comprenant en série une résistance aval (31,32) reliée au premier pôle de la source, une des faces résistives (33,34) et une résistance amont (35,36) reliée au deuxième pôle de la source de courant continu. The invention relates to a device for detecting the pinching and or cutting of a resistive seal comprising two resistive internal faces (33,34) which are opposite to each other and normally isolated from each other. and come into contact when the seal is pinched, the detection being effected by modifying the value of a resistance bridge including the aforementioned faces. It is characterized in that it comprises two resistance bridges connected in parallel between a first terminal and a second terminal of a direct voltage source, each bridge comprising in series a downstream resistor (31,32) connected to the first pole of the source, one of the resistive faces (33,34) and an upstream resistor (35,36) connected to the second pole of the direct current source.

Emergency Off Apparatus And Method for the same

본 발명은 작업공간에 설치되어 설비에 전기적으로 연결되며, 당김에 의해 작동 가능한 스위치 유닛, 및 장력이 가해지도록 작업공간에 배치되고, 적어도 일측이 스위치 유닛에 탈착 가능하게 장착되는 와이어를 포함하는 비상정지 장치와, 와이어를 당기거나 미는 방식으로 작업공간의 원하는 위치에서 설비를 신속하게 정지시킬 수 있는 비상정지 방법이 제시된다. The present invention comprises an emergency switch comprising a switch unit installed in the workspace and electrically connected to the facility, the switch unit operable by pulling, and a wire disposed in the workspace to apply tension, and at least one side of which is detachably mounted to the switch unit. A stop device and an emergency stop method are provided for quickly stopping the installation at a desired location in the workspace by pulling or pushing the wire.

Laser light barrier system for tool and workpiece measurement

Method of monitoring motion of objects with motorised adjustment, esp. motor car windows and sun roofs

The method involves switching off a motor connected to a voltage supply when a data processing system detects that a value dependent on the motor speed or the speed of the object exceeds a threshold value dependent on the values measured by sensors detecting characteristic values of the adjustment system. During the motor run-up phase a stored period threshold value is compared with the current period value (PWa). The initial period threshold value is derived from another period (PWv) for detecting the motor or object speed after the end of the preceding safety relevant adjustment of the object. If the current period value exceeds the initial period threshold value the motor is switched off.

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.

Processing machine with security scanner

Bearbeitungsmaschine (1) zum Bearbeiten von Werkstücken (2), die bevorzugt zumindest teilweise aus Holz, Holzwerkstoffen, holzähnlichen Stoffen, Kunststoff oder dergleichen bestehen, mit mindestens einer verfahrbaren Bearbeitungseinheit (4), die einen ersten Sensor (10) aufweist, der eingerichtet ist, in einen im Bereich der verfahrbaren Bearbeitungseinheit (4) definierten Sicherheitsbereich (12) eindringende Gegenstände und Personen zu erfassen, dadurch gekennzeichnet, dass die verfahrbare Bearbeitungseinheit (4) zwischen zwei dynamischen Bereichen (A, B) verfahrbar ist und die Werkstücke (2) jeweils in einem (A) dieser beiden dynamischen Bereiche mittels der verfahrbaren Bearbeitungseinheit (4) bearbeitet werden können, während in dem zweiten (B) dynamischen Bereich ein Be- und Entladen der Werkstücke (2) erfolgen kann, und die Bearbeitungsmaschine ferner einen zweiten Sensor (14) aufweist, der eingerichtet ist, in dem zweiten dynamischen Bereich (B) anwesende Gegenstände und Personen zu erfassen, bevor die Bearbeitungseinheit (4) in den zweiten dynamischen Bereich (B) verfahren wird. Processing machine (1) for machining workpieces (2), which are preferably at least partially made of wood, wood-based materials, wood-like materials, plastic or the like, with at least one movable processing unit (4) having a first sensor (10) which is set up to detect objects and persons entering a safety area (12) defined in the area of the movable processing unit (4), characterized in that the movable machining unit (4) is movable between two dynamic areas (A, B) and the workpieces (2) can each be machined in one (A) of these two dynamic areas by means of the movable machining unit (4), while in the second (B ) dynamic loading and unloading of the workpieces (2) can take place, and the processing machine further comprises a second sensor (14) arranged to detect objects and persons present in the second dynamic area (B) before the processing unit (4) is moved to the second dynamic ...

Device for securing a machine-controlled handling device and method

Die Erfindung betrifft eine Vorrichtung zur Absicherung eines maschinell gesteuerten Handhabungsgeräts, insbesondere eines Roboters, mit einer Sensorik zur Erfassung von in einem dem Handhabungsgerät zugeordneten Überwachungsraum sich befindenden Objekten und einer Auswerteeinheit zur Bestimmung von Positionsdaten und Bewegungsdaten der sich in dem Überwachungsraum befindenden Objekten aus Sensorsignalen der Sensorik. The invention relates to a device for securing a mechanically controlled handling device, in particular a robot, with a sensor system for detecting objects located in a monitoring device associated with the handling device and an evaluation unit for determining position data and movement data of the objects located in the interception space from sensor signals sensors.

Input/output methodology for control reliable interconnection of safety light curtains and other machine safety controls

The present invention involves a methodology for the interconnection of safety control modules used for the safeguarding of personnel around points and areas of hazardous machine operation. The system includes one or more safety control modules connected together so that the safety control modules communicate with each other using actively diverse safety control signals. The safety control modules are also connected to the machine safety control circuit so that the safety control modules can stop machine operation when one or more safety control modules are activated. The use of actively diverse safety control signals provides a control reliable system.

PROTECTION SCREEN FOR A MACHINE

Robot system able to secure worker safety

A robot of a robot system performs a desired operation by an operation motor and moves along a route by a movement motor. The robot system includes a robot power cutoff device for cutting off the power supply to the operation motor when making the robot move from one station to another station across the worker passage, a cutoff state monitoring device for monitoring the cutoff state of the power supply to the operation motor, and an emergency stop device. The emergency stop device cuts off the power supply to the movement motor so as to make the robot stop on an emergency basis, when it is detected that the power supply to the operation motor has not been cut off and the robot enters the predetermined section above the worker passage.

PROTECTIVE DEVICE ON A CLOSING EDGE

Safety device for industrial machines

A safety device, particularly for industrial machines, such as for example bending presses provided with an upper tool that is driven in abutment toward a lower die, at Least one blank, such as a metal plate, a bent plate or a box-like element, being interposable between the die and the tool, the safety device comprising a glove worn by the operator, provided with first electrically conducting regions located at the back with no conducting regions at the palm; the glove constitutes, at contact with the machine and/or with the blank, an element for transmitting electrical signal between the machine and a control unit (CU) to stop descent of the tool.

Patent FR2366432B1

Acoustic warning system for a mobile working machine

The acoustic warning system has means for storing and playing back at least one analogue and/or digital tone signal. The signal transmitter is designed as a loudspeaker. The loudness of the played back tone signal is adjustable. The means for storing and playing back an analogue and/or digital tone signal has an analogue or digital input interface. The stored tone signal is played back by the action of a manually activated operating unit, or by a sensor and preferably a living being presence sensor.

Safety interlock/latch assembly for a printing press

A safety interlock/latch assembly for use on a printing press having at least one safety latch (100) and one guard element (102). At least one lockable pivot device (106, 116) for allowing rotation of the guard element (102) is attached to a first end (104) of the guard element (102). A roller (112) for engaging the lockable pivot device (106, 116) is provided and has a cam (146) for switch actuation. A support device (132) for rotatably holding the roller (112) is provided and has an aperture (142) with a predetermined configuration for receiving the lockable pivot device (106, 116). The support device (132) is located at least between the lockable pivot device (106, 116) and the roller (112) and is attached to the printing press. A release latch (160) on the support device (132) holds the guard element (102) open and a spring latch (158) on the support device (132) holds the guard element (102 ) closed.

Obstruction detection system and method having an alternating signal representative of a velocity of an object

A system for detecting an obstruction in the deploy path of a retractable LCD monitor includes a disc that rotates with the monitor as the monitor is deployed, an optical switch operatively coupled to the disc to generate pulses indicating the speed at which the monitor is deploying, and a retriggerable one-shot circuit that receives the pulses from the optical switch. When the pulses fail to arrive at the retriggerable one-shot circuit fast enough, i.e., below a threshold rate, the retriggerable one-shot circuit times out and its output state transitions from a high level to a low level. The high-to-low state transition causes the monitor to retract and re-attempt deployment.

SAFETY DEVICE FOR EQUIPMENT ON BOARD CRUSHING OR CLOSING, FOR EXAMPLE DOORS AND PRESSES

Dispositif de sécurité pour les bords et arêtes d'écrasement, de cisaillement et de fermeture d'objets actionnés par une force motrice, avec émetteur de signaux élastique le long de l'arête à protéger, dont la résistance électrique varie en fonction de la pression subie. L'émetteur de signaux 21 est parcouru d'une électrode à l'autre par un courant de repos qui diminue ou est coupé en cas de détérioration de l'émetteur de signaux, et qui augmente lorsque cet émetteur est comprimé; la variation du courant de repos étant enregistrée par un appareil de commande 18 qui agit sur l'entraînement du dispositif. Applicable notamment aux portes et presses. Safety device for edges and edges when crushing, shearing and closing objects actuated by a motive force, with elastic signal transmitter along the edge to be protected, the electrical resistance of which varies according to the pressure suffered. The signal transmitter 21 is passed from one electrode to the other by a quiescent current which decreases or is cut off in the event of deterioration of the signal transmitter, and which increases when this transmitter is compressed; the variation of the quiescent current being recorded by a control apparatus 18 which acts on the drive of the device. Applicable in particular to doors and presses.

Floor sawing equipment with controllable supporting wheels

A floor saw (100, 100a, 100b) comprising a control unit (130) arranged to determine whether an operator is in position to perform manual control of floor saw steering, and to trigger a warning signal and/or halt the floor saw in response to determining that an operator is not in position to perform manual control of the floor saw steering.

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.

SAFETY INSTALLATION FOR A DEVICE OPERABLE BY A SERVICE PERSON

Sheet-Fed or Web-Fed Printing Machine

The sheet-fed or web-fed printing machine comprises a main unit ( 1 ), at least one mobile carriage ( 2 ) adapted to be coupled to the main unit for cooperation therewith during printing operations and to be moved away from the main unit during maintenance operations, a control unit for controlling displacement of said mobile carriage toward and away from said main unit, and an access zone ( 9, 9 ′) surrounding at least partly the mobile carriage for allowing a human operator to get access to the main unit and mobile carriage, which access zone lies outside of the displacement path ( 10 ) of the mobile carriage. The printing machine further comprises detection means ( 11 ) for monitoring the access zone and detecting presence of a human operator within the access zone. The control unit is operatively connected to the detection means so as to interrupt or prevent displacement of the mobile carriage in case presence of a human operator is detected within the access zone by the detection means and before the human operator penetrates in the displacement path of the mobile carriage.

SAFETY SWITCHING FOR BELT CUTTING MACHINES

Mobile platform for operators of calenders

A platform at one side of a battery of rolls in a calender can be moved up or down when the rolls are not driven or when a breastwork at the parapet of the platform is moved to a raised position so that an operator standing on the bottom wall of the platform cannot reach a nip of the rolls while the rolls are driven,

Device for switching on a machine

The composite button for starting a machine may be formed as a virtual button on a computer touch screen. It may have a central circular zone (6) which may be touched to give starting signal, surrounded by an annular activation inhibiting zone (7). A variety of different formats may be used, including separate buttons and a numerical keyboard. The touch screen starting system may be connected to a control computer by a cable.

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.