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Drive Mechanism for a Reciprocating Tool

Номер патента: US20130055576A1. Автор: Brad Holmes, Jaime Moreno. Владелец: ROBERT BOSCH GMBH, Robert Bosch Tool Corp. Дата публикации: 07-03-2013.
In one embodiment, a reciprocating tool includes an elongated spindle configured to reciprocate along its lengthwise axis, a wobble drive mechanism operably connected to the elongated spindle, an elongated rocker assembly having an upper end portion operably connected to the spindle, a lower end portion, and a pivot located between said upper and lower end portions, and a counterweight operably connected to the lower end portion, such that as the elongated spindle reciprocates along its lengthwise axis, the counterweight is driven by the elongated rocker assembly to reciprocate along the axis.

Tool-Less Blade Clamping Apparatus for a Reciprocating Tool

Номер патента: US20130193653A1. Автор: Gary Sinclair, Gavin Wright, Marc Vincent Marini, Matthew Carr, Vance E. Roe. Владелец: ROBERT BOSCH GMBH, Robert Bosch Tool Corp. Дата публикации: 01-08-2013.
Several preferred embodiments are disclosed for a tool-less blade clamping apparatus for a reciprocating tool of the type which has a reciprocating plunger which has a tool attachment receiving slot for receiving a tool attachment of the type that has a shank portion. The clamping apparatus has an unclamped position and a clamped position. In the unclamped position, a tool attachment can be easily inserted and when it is in its clamped position, the tool attachment is securely retained. The preferred embodiments have at least one spring biasing the apparatus toward the clamped position, a releasable retaining mechanism for holding the apparatus in its unclamped position after being placed in that position. When the blade shank portion is inserted into the slot a predetermined distance, the shoulders of the shank portion release the retaining mechanism to move it to its clamped position. When a blade is to be removed, the clamping apparatus needs only to be moved to its unclamped position by manually rotating the outer sleeve or collar, and the blade is normally ejected from the mechanism by contact with the blade shoulders as it reaches its unclamped position.

RECIPROCATING SAW BLADE CLAMP

Номер патента: US20130247392A1. Автор: McCool Courtney D., Neitzell Roger D.. Владелец: MILWAUKEE ELECTRIC TOOL CORPORATION. Дата публикации: 26-09-2013.
A reciprocating saw that includes a spindle including a blade slot configured to receive a saw blade. The saw further includes a blade clamp operable to removably couple the saw blade to the spindle, and the blade clamp includes a first actuator pivotable about the spindle between a locked position and an unlocked position, and a first locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the first actuator between the locked position and the unlocked position. The blade clamp further includes a second actuator pivotable about the spindle between a locked position and an unlocked position, and a second locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the second actuator between the locked position and the unlocked position. 1. A reciprocating saw comprising:a spindle including a blade slot configured to receive a saw blade; and a first actuator pivotable about the spindle between a locked position and an unlocked position,', 'a first locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the first actuator between the locked position and the unlocked position, the first locking member configured to engage the saw blade to couple the saw blade to the spindle when the first locking member is in the engaged position and the first locking member configured to allow removal of the saw blade from the blade slot when the first locking member is in the disengaged position,', 'a second actuator pivotable about the spindle between a locked position and an unlocked position, and', 'a second locking member movable relative to the blade slot between an engaged position and a disengaged position in response to movement of the second actuator between the locked position and the unlocked position, the second locking member configured to engage the saw ...

PIVOTING BLADE RETAINER

Номер патента: US20140033550A1. Автор: da Graca Gabriel. Владелец: BLACK & DECKER INC.. Дата публикации: 06-02-2014.
A reciprocating saw having a clamping arrangement with a clamp support base, first and second locking members and a release lever. The clamp support base defines first and second blade slots that are each configured to receive a saw blade therein. Each of the first and second locking members are movable between a disengaged position, which does not inhibit withdrawal of the saw blade from the a corresponding one of the first and second blade slots, and an engaged position that inhibits withdrawal of the saw blade from the corresponding one of the first and second blade slots. The release lever is pivotally coupled to the clamp support base and coordinates movement of the first and second locking members. 1. A reciprocating saw comprising:a housing;a drive shaft coupled to the housing for reciprocating motion along an axis;a clamping arrangement having a clamp support base, first and second locking members, a pivot pin, and a release lever, the clamp support base being coupled to the drive shaft for movement therewith, the clamp support base defining a first blade slot, a first cavity, a second blade slot and a second cavity, the first blade slot extending parallel to the axis and being adapted to receive a saw blade therein, the first cavity adjacent to the first blade slot, the second blade slot extending parallel to the axis and being adapted to receive the saw blade therein, the second cavity adjacent to the second blade slot, the first locking member being received in the first cavity and movable between a disengaged position, which does not inhibit withdrawal of the saw blade from the first blade slot, and an engaged position that inhibits withdrawal of the saw blade from the first blade slot, the second locking member being received in the second cavity and movable between a disengaged position, which does not inhibit withdrawal of the saw blade from the second blade slot, and an engaged position that inhibits withdrawal of the saw blade from the second blade ...

RECIPROCATING SAW

Номер патента: US20220009011A1. Автор: Gao Hao, LI Jiang, Liu Lai, Wang Feng, Zhou Yang. Владелец: . Дата публикации: 13-01-2022.
A reciprocating saw includes a casing, a power assembly, a transmission assembly, a reciprocating assembly, a swing assembly, and a balance weight. The transmission assembly includes a first transmission member that is capable of being driven by the power assembly to rotate around a first axis. The swing assembly includes a floating support member configured to drive the reciprocating assembly to perform an orbital motion. The first transmission member is provided with a cam surface configured to be in contact with the floating support member to drive the floating support member to move in an up-and-down direction parallel to the first axis. The balance weight is provided with an escape opening, and the escape opening is disposed on a path on which the floating support member moves in the up-and-down direction. 1. A reciprocating saw , comprising:a casing;a motor disposed in the casing;a transmission assembly connected to the motor;a reciprocating assembly connected to the transmission assembly comprising an output assembly for a cutting accessory to be installed thereon;a swing assembly disposed between the transmission assembly and the reciprocating assembly; anda balance weight at least partially disposed between the transmission assembly and the reciprocating assembly configured to balance movement of the reciprocating assembly;wherein the transmission assembly comprises a first transmission member that is capable of being driven by the motor to rotate around a first axis, the swing assembly comprises a floating support member configured to drive the reciprocating assembly to perform an orbital motion, the first transmission member is provided with a cam surface configured to be in contact with the floating support member to drive the floating support member to move in an up-and-down direction parallel to the first axis, the balance weight is provided with an escape opening, and the escape opening is disposed on a path on which the floating support member moves ...

Blade Holding Device

Номер патента: US20170008101A1. Автор: CHANG Li-Hsin, Hung Liang-Chi. Владелец: . Дата публикации: 12-01-2017.
A blade holding device for securely holding a saw blade includes a holding unit, a sleeve member, a retaining unit, and a shell. The holding unit includes a clamp member and an insert. The clamp member has two half portions defining a gap for receiving the saw blade, a slot extending through one of the half portions, and an abutment surface. The insert is inserted into the slot, abuts against the abutment surface, and has a threaded hole. The sleeve member surrounds the half portions of the clamp member without blocking the threaded hole. The retaining unit includes a fastening member extending threadedly through the threaded hole for pressing against the saw blade. The shell surrounds the sleeve member and the clamp member. 1. A blade holding device for securely holding a saw blade , said blade holding device comprising: a clamp member that has two spaced-apart half portions defining a gap therebetween, a slot extending through one of said half portions and communicating spatially with said gap, and an abutment surface being adjacent to said slot, said gap being adapted for receiving the saw blade, and', 'an insert that is inserted into said slot, that abuts against said abutment surface, and that is formed with a threaded hole;, 'a holding unit including'}a sleeve member surrounding said half portions of said clamp member without blocking said threaded hole;a retaining unit including a fastening member that extends threadedly through said threaded hole and that is adapted to press against the saw blade for securing the saw blade; anda shell having a shell body that surrounds said sleeve member and said clamp member, and that is formed with a window to expose said threaded hole.2. The blade holding device as claimed in claim 1 , wherein said retaining unit further includes a lock pin that secures said sleeve member to said clamp member.3. The blade holding device as claimed in claim 2 , wherein:said half portions of said clamp member extend in a longitudinal ...

SURGICAL SAW MOUNT AND BLADE

Номер патента: US20160016239A1. Автор: Block Chris, DeSoutter George. Владелец: . Дата публикации: 21-01-2016.
There is disclosed a sagittal saw blade mount and corresponding sagittal saw blade. The blade mount is configured to rotationally oscillate along a plane of motion about an axis of rotation which passes through the blade mount crossing the plane of motion at a point of rotation. The blade mount comprises a securing portion comprising two securing faces passing through the plane of motion and a locking member configured to urge a blade towards the securing portion in a first direction parallel to the plane of motion, thereby securing the blade between the locking member and the securing faces. The two securing faces are angled such that the planes of the securing faces intersect with each other and with the plane of motion at a point of intersection which is positioned such that the point of rotation lies between the point of intersection and the securing portion.

Reciprocating saw

Номер патента: US20200030897A1. Автор: Benjamin Ludy, Brian Wattenbach, Jeffrey Holly, Roger D. Neitzell, Thomas R. Bednar. Владелец: Milwaukee Electric Tool Corp. Дата публикации: 30-01-2020.
A reciprocating saw includes a housing assembly and a motor positioned within the housing assembly. The motor includes a pinion. A drive mechanism is positioned within the housing assembly and includes a gear driven by the pinion, a hub coupled to the gear, a spindle, and a connecting rod. A clutch assembly is coupled to the drive mechanism to selectively transmit drive force form the gear to the hub. The clutch assembly includes a first disk coupled to the gear, a second disk coupled to the hub, a biasing member, and a threaded fastener. The biasing member is positioned between the hub and the gear to bias the first and second disks into frictional engagement. The threaded fastener extends through the gear and threadably engages the hub to couple the hub to the gear. Tightening the threaded fastener pulls the hub toward the gear to preload the biasing member.

RECIPROCATING SAW BLADE MOUNTING DEVICE AND RECIPROCATING SAW

Номер патента: US20210046562A1. Автор: Zhou Yang. Владелец: . Дата публикации: 18-02-2021.
A reciprocating saw blade mounting device includes a reciprocating rod, a clamping mechanism and an ejection mechanism. The reciprocating rod is provided with a clamping cavity. The clamping mechanism includes a clamping member and a positioning member which are disposed opposite to each other. The clamping member can move such that the reciprocating saw blade mounting device switches between a clamping state and a released state. The ejection mechanism includes a pressing block and a first elastic member. When the reciprocating saw blade mounting device is in the released state, the pressing block is elastically pressed between the clamping member and the positioning member by the first elastic member. When the reciprocating saw blade mounting device is in the clamping state, the pressing block is pressed out from between the clamping member and the positioning member by the clamping end and compresses the first elastic member. 1. A reciprocating saw blade mounting device , comprising:a reciprocating rod having a front end which is provided with a clamping cavity for clamping a clamping end of a saw blade in an axial direction;a clamping mechanism comprising a clamping member and a positioning member which are disposed opposite to each other on the clamping cavity in a radial direction, wherein the clamping member is capable of moving in the radial direction such that the reciprocating saw blade mounting device switches between a clamping state in which the clamping end is clamped in the clamping cavity by the clamping member and a released state in which the clamping end is separated from the clamping cavity; andan ejection mechanism disposed in the clamping cavity, wherein the ejection mechanism comprises a pressing block and a first elastic member;wherein, when the reciprocating saw blade mounting device is in the released state, the pressing block is elastically pressed between the clamping member and the positioning member by the first elastic member such that ...

Power Tool Clamping Device

Номер патента: US20150059192A1. Автор: Fragapane Giuseppe. Владелец: ROBERT BOSCH GMBH. Дата публикации: 05-03-2015.
A power tool clamping device comprises at least one clamping unit having at least one movably mounted force-fit clamping plane element and at least one actuating element configured to move the at least one force-fit clamping plane element to clamp a working tool at least in a clamping position. The at least one actuating element is mounted movably relative to the at least one force-fit clamping plane element along at least two at least substantially mutually transverse movement directions of the at least one actuating element. 1. A power tool clamping device , comprising:at least one clamping unit having at least one movably mounted force-fit clamping plane element and at least one actuating element configured to move the at least one force-fit clamping plane element to clamp a working tool at least in a clamping position,wherein the at least one actuating element is mounted movably relative to the at least one force-fit clamping plane element along at least two at least substantially mutually transverse movement directions of the at least one actuating element.2. The power tool clamping device as claimed in claim 1 , wherein:the at least one actuating element includes at least one threaded region; andthe at least one actuating element is mounted with the at least one threaded region so as to be movable relative to the at least one force-fit clamping plane element.3. The power tool clamping device as claimed in claim 1 , wherein the at least one clamping unit includes at least one positioning element having at least one pressing face claim 1 , the at least one positioning element extending at least substantially transversely in relation to a clamping face of the at least one force-fit clamping plane element and configured to act upon the at least one force-fit clamping plane element.4. The power tool clamping device as claimed in claim 3 , wherein the at least one force-fit clamping plane element has at least one clamping positioning face extending at least ...