Longitudinally Moving Transmission Member Patents (Class 192/24)
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Patent number: 12140188Abstract: A claw clutch for positively connecting a first rotatable component to a second rotatable component. A claw clutch for motor vehicles having an electric drive train which permits a reliable connection of the claw clutch when tooth-on-tooth positions are released and, at the same time, reduces the number of moving elements on the sliding sleeve. A clutch body, which is arranged on the first rotatable component for conjoint rotation therewith, has a first tooth system and a sliding sleeve, which is arranged on the second rotatable component in a manner which allows conjoint rotation and axial movement, has a second tooth system and is axially movable via a shift fork by an actuator system in order to load a spring element by the actuator system in the case of a tooth-on-tooth position. The spring element to be loaded is arranged outside the second rotatable component equipped with the sliding sleeve.Type: GrantFiled: November 9, 2022Date of Patent: November 12, 2024Assignee: ZF FRIEDRICHSHAFEN AGInventors: Norman Schmidt-Winkel, Fabian Hartmann, Ludwig Geißelbrecht, Martin Ruider, Bastian Schuh
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Patent number: 11976693Abstract: A clutch assembly, the assembly may include a first member having a locking structure and a second member having a receiving area. The assembly may include a locking element supported in the receiving area of the second member, the locking element moving between an engaged position where the locking element holds or transfers torque between the first and second members and a disengaged position where the locking element holds or transfers no torque between the first and second members. The locking element includes a socket. Moreover, the assembly may include a reciprocating member in the socket when the locking element is in the disengaged position.Type: GrantFiled: June 13, 2022Date of Patent: May 7, 2024Assignee: Means Industries, Inc.Inventors: Todd M. Andrzejewski, Joshua D. Hand
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Patent number: 11898609Abstract: A wheel end disconnect assembly includes an axle shaft, a wheel hub, and a wheel end disconnect clutch. The axle shaft has a first dog clutch spline and the wheel hub has a second dog clutch spline. The wheel end disconnect clutch has a dog clutch sleeve and a rocker pin. The dog clutch sleeve has a third dog clutch spline engaged with one of the first or second dog clutch splines and arranged to selectively engage and disengage from the other of the first or second dog clutch splines, and a first spiral groove. The rocker pin has a first pin end arranged to selectively engage and disengage from the first spiral groove to axially displace the dog clutch sleeve. The first dog clutch spline and the second dog clutch spline may both be outer splines, and the third dog clutch spline may be an inner spline.Type: GrantFiled: August 25, 2022Date of Patent: February 13, 2024Assignee: Schaeffler Technologies AG & Co. KGInventor: Brian Lee
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Patent number: 11499358Abstract: In one form, the invention relates to a door drive for a door, the door drive comprising: a drive motor, a drive shaft drivable and thereby rotatable by the drive motor, a clutch, and a threaded spindle which is drivable and thereby rotatable by the drive shaft via the clutch, wherein the clutch comprises: a catch element, an actuating element which, by rotating the drive shaft, is drivable and thereby rotatable around an actuation rotational axis by the drive shaft, the actuating element comprising at least one first actuation area, and a clutch element which comprises at least one second actuation area corresponding to the first actuation area, wherein the clutch element is translationally movable along the actuation rotational axis relative to the catch element between at least one decoupling position in which the clutch element is decoupled from the catch element, and at least one coupling position in which the clutch element is coupled to the catch element, and wherein a relative rotation between the actType: GrantFiled: July 6, 2020Date of Patent: November 15, 2022Assignee: APPARATEBAU GRONBACH S.R.L.Inventors: Gerold Meurer, Massimiliano Margonari
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Patent number: 11279228Abstract: An axle disconnect apparatus having a cam cylinder including a ramp disposed in a radially outer surface thereof. A first clutch element disposed at least partially inside the cam cylinder and an intermediate shaft disposed at least partially within the first clutch element. The intermediate shaft includes a splined portion in constant mesh with the first clutch element. A half shaft may be disposed coaxially with the intermediate shaft, and a second clutch element may be coupled with the half shaft. The first clutch element selectively engages the second clutch element. The axle disconnect apparatus further comprises a latching mechanism whereby the cam cylinder maintains an axial position. The latching mechanism including a radial depression in the cam cylinder ramp, and a cam follower selectively disposed at least partially in the radial depression.Type: GrantFiled: July 13, 2018Date of Patent: March 22, 2022Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLCInventor: Peter A. Beesley
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Patent number: 11225741Abstract: A clothes treating device includes: a cabinet; a tub having an inlet at an upper part; a drum provided inside the tub and having a through-hole on a bottom surface thereof; a stirring part rotatably disposed in through-hole; a driving part provided on the lower part of the stirring part so as to provide power for rotating the stirring part and/or the drum; and a coupling provided between the stirring part and the driving part so as to be rotated by the power, and provided so as to rotate the stirring part and the drum in different directions or rotate only the stirring part when a water level of the tub is greater than or equal to a certain water level, and to rotate the stirring part and the drum in the same direction when the water level is less than to the certain water level.Type: GrantFiled: December 15, 2017Date of Patent: January 18, 2022Assignee: LG Electronics Inc.Inventors: Jaeyong Jeong, Keunjoo Kim, Dongsoo Lee, Oshin Kwon, Sangwook Lee
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Patent number: 10352372Abstract: A dog clutch having two clutch members provided with claws or teeth, one of which is movable, as well as a positioning device for engaging and disengaging the clutch by a positioning movement of the movable clutch member. In order to establish a proper engaging of the dog clutch, a sensor is arranged along the movement path of the movable clutch member, which detects the movement of the clutch member into the engaged state, while the clutch member is provided with an activating contour which, upon engaging the clutch, moves past the sensor, which is preferably an electromagnetic actuator for holding the movable clutch member in the disengaged state of the clutch.Type: GrantFiled: September 9, 2015Date of Patent: July 16, 2019Assignee: AUDI AGInventors: Dieter Weidemann, Heiko Hanickel, Florian Kolb, Hans Jörg Brühl
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Patent number: 10150401Abstract: A system and method are provided for facilitating selective delivery of aggregate material in bulk from a back of a dump truck or other truck bed to one or more wheelbarrows in a controlled manner. The disclosed embodiments further provide a system that could be operated by a single individual, including the single individual that is then manually moving the wheelbarrow from the truck to the particular location of the delivery site where the aggregate material is to be finally dispensed. The disclosed systems provide a self-contained mechanical device that is comparatively-easily mountable to the back of a dump truck or other truck bed for use, and is electrically, or electric over hydraulically, powered through the electrical system of the vehicle in order to avoid any need for additional power requirements.Type: GrantFiled: February 22, 2017Date of Patent: December 11, 2018Assignee: Dawson Manufactures LLCInventors: Nicholas Carlson, Craig Carlson
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Patent number: 9759272Abstract: A clutch is provided with a drive-side rotational body and a driven-side rotational body, which can move in the axial direction between a coupled position and a decoupled position. The driven-side rotational body has a groove having a helical portion and an annular portion that is deeper than the helical portion. The driven-side rotational body is urged toward the coupled position by an urging member. The driven-side rotational body is moved to the decoupled position against the urging force of the urging member by insertion of a pin into the helical portion. A projection is provided on the tip of the pin, and a recessed groove for accommodating the projection when the pin is inserted into the helical portion is provided in the bottom surface of the helical portion.Type: GrantFiled: September 25, 2013Date of Patent: September 12, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotaka Sunada, Masao Nakayama, Hideki Tsutsui, Shintaro Nakano, Daisuke Kobayashi
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Patent number: 9528578Abstract: A lift system defines a vertical hoist axis and includes a holding unit for lifting and lowering an object in a direction along the vertical hoist axis. An overload coupling mutually connects the drive shaft of a motor and the input shaft of a gear assembly. The overload coupling includes a latch mechanism having a motor latch part and a gear assembly latch part. The latch mechanism defines a latch characteristic providing a first transmittable torque in a lowering rotational direction and a second transmittable torque in a lifting rotational direction determined so as to cause the first transmittable torque to be less than the second transmittable torque. The latch mechanism includes a rotational positioning device configured to permit a latching of the motor latch part into the gear assembly latch part in only one possible relative rotational angle position within 360° referred to the lifting rotational direction.Type: GrantFiled: September 4, 2014Date of Patent: December 27, 2016Assignee: EFS-Gesellschaft fuer Hebe- und Handhabungstechnik mbHInventor: Klaus Perabo
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Patent number: 9470276Abstract: A bi-directional actuator for a motor vehicle drive train is provided. The actuator includes a first axially stationary part; a second axially stationary part; an activation part between the first axially stationary part and the second axially stationary part, the activation part being axially movable to alternately contact the first axially stationary part and the second axially stationary part; and an actuation part engaging the first axially stationary part and the second axially stationary part, contact between the activation part and the first axially stationary part causing the first axially stationary part to force the actuation part in a first axial direction, contact between the activation part and the second axially stationary part causing the second axially stationary part to force the actuation part in a second axial direction.Type: GrantFiled: July 14, 2014Date of Patent: October 18, 2016Assignee: Schaeffler Technologies AG & Co. KGInventor: Yang Wang
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Patent number: 9313955Abstract: A safety device for agricultural machines is provided. The safety device includes a stop element, which can be associated functionally with a kinematic transmission chain interposed between a motor assembly of a working shaft and the working shaft itself to control the working shaft with the complementary stop element. The stop element is movable on command from a passive configuration to an active configuration, in which the stop element is arranged so as to interfere with the trajectory of the complementary stop element, for the forced locking of the latter and of the working shaft, and vice versa. Moreover, either or both of the stop element and the complementary stop element are associated with a unit for damping the forced locking, which can be actuated automatically upon impact of the stop element against the complementary stop element.Type: GrantFiled: December 12, 2012Date of Patent: April 19, 2016Assignee: KVERNELAND GROUP RAVENNA S.R.L.Inventor: Paolo Ravaglia
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Patent number: 9169780Abstract: A gas turbine engine having an electric generator includes a transmission shaft extending along a longitudinal axis of the engine and drivingly interconnecting a turbine shaft of the engine and a rotor shaft of the electric generator. The transmission shaft is engaged by splined mating connections with the turbine shaft and the rotor shaft. The transmission shaft has a shear neck defining a reduced radial wall thickness with respect to a remainder of the transmission shaft such as to provide a weakened region of the transmission shaft. An annular support structure, concentric with and surrounding the transmission shaft, is axially located between the shear neck and a forward end of the transmission shaft engaged to the turbine shaft, and includes a bearing operable to rotationally support the transmission shaft.Type: GrantFiled: July 15, 2011Date of Patent: October 27, 2015Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Barry Barnett, Daniel Alecu, Andreas Eleftheriou
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Patent number: 9109634Abstract: A clutch and actuator assembly having first and second clutch dogs and an actuator assembly. The second clutch dog is configured to disengage from the first clutch dog when rotary power is transmitted between the first and second clutch dogs. The actuator assembly is configured to lock when the second clutch dog to thereby inhibit automatic disengagement of the second clutch dog from the first clutch dog.Type: GrantFiled: October 22, 2013Date of Patent: August 18, 2015Assignee: e-AAM Driveline Systems ABInventor: Gabriel Per Erik Ivar Trönnberg
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Patent number: 9022192Abstract: A coupling arrangement for a drive train of a motor vehicle includes at least one clutch arranged on a rotating shaft in order to couple the rotating shaft selectively with a drive element of the drive train, and at least one activation device to activate the clutch. The activation device is adapted to bring an engagement segment selectively into engagement with a threaded segment rotating with the shaft in order to cause a relative movement of the engagement segment and the threaded segment along the axis of the rotating shaft and thus activate the clutch in the axial direction.Type: GrantFiled: February 14, 2011Date of Patent: May 5, 2015Assignee: MAGNA Powertrain AG & Co KGInventors: Johannes Quehenberger, Alexander Fürschuss
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Publication number: 20100140035Abstract: A bicycle clutch comprises a transmission shaft, at least two gears, at least two slide blocks, at least two clutch blocks, at least two guiding blocks, a switch shaft and a stationary shaft. The gears and the slide blocks are coaxially disposed on the transmission shaft. The sliding blocks, switch shaft and stationary shaft are coaxially assembled. The clutch blocks are disposed on the transmission shaft, the gears and the slide blocks. The guiding blocks are disposed on the switch shaft and the slide blocks. Through angle deflection, the clutch can selectively make one of the gears engage with the driven assembly to change the rotation speed.Type: ApplicationFiled: December 8, 2008Publication date: June 10, 2010Inventor: SHUEH-CHIN LIAO
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Patent number: 7188718Abstract: A clutch device for transmitting drive power to a transmission-receiving member includes a main shaft; an input side rotating body; an output side rotating body; an inner sleeve body; an outer sleeve body; a braking device; a first coil spring; a first main connection part; a second main connection part; a first sub connection part; a second sub connection part; a first cam surface; a second cam surface; a first catching surface; a second catching surface; an outermost cylinder body; and a second coil spring. Non-transmitting condition can be surely set even if an input side rotational force is small.Type: GrantFiled: February 22, 2005Date of Patent: March 13, 2007Assignee: Nifco Inc.Inventors: Shigemitsu Tomita, Masanobu Kawamoto
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Patent number: 6984188Abstract: A multi-speed transmission assembly for a rotary power tool. The transmission assembly includes a plurality of transmission stages, with at least two of the transmission stages employing a movable reduction element that permits the transmission stage to be operated in an active mode and an inactive mode. The movable reduction elements are coupled to a switching mechanism that switches the reduction elements in a predetermined manner to provide at least three-gear reduction or speed ratios.Type: GrantFiled: March 10, 2003Date of Patent: January 10, 2006Assignee: Black & Decker Inc.Inventors: Christine Potter, Rodney Milbourne, Todd A. Hagan, Michael C. Bowers
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Patent number: 6976648Abstract: The present invention is a strip/cross switch mechanism of double-duty shredder, consists of two main bodies, machine drive device and switch knob device, wherein, machine drive device comprises: motor drive gear wheel, drive shaft, shaft coat, large strap wheel, ratchet wheel, drive key, pawl, pawl wheel, and the switch knob device consists of fork, knob arm, fork frame and knob, the rotary knob change the position of fork to make large strap wheel compel drive key move to the position that pawl and ratchet wheel disposed, when derive key intermeshes with pawl the ratchet wheel that pawl affiliated to and the fixed drive shaft of ratchet wheel will be rotated to rotates latitude paper-cutting mechanism drivingly connected to drive shaft to cut the paper to be cut in latitudinal direction.Type: GrantFiled: January 9, 2003Date of Patent: December 20, 2005Inventor: Frank Chang
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Patent number: 6799666Abstract: A torque limiting coupling has a coupling hub (2) with circumferentially distributed apertures (5). Driving members (6) are adjustably held in the apertures (5). A coupling sleeve (3) includes first recesses (7). A switching disk (4) is rotatably arranged between a coupling position and an uncoupling position. The switching disk (4) is loaded towards the coupling position and loads the driving members (6) towards the coupling hub (2). The driving members (6), for torque transmitting purposes, engage the first recesses (7). When a torque limit is exceeded, the driving members (6) are transferred into the uncoupling position. Here, second recesses (8) are engaged by the driving members (6) in the uncoupling position. A locking means (28) is adjustable between a locking position, where the switching disk (4) is locked in its uncoupling position, and a disengaging position.Type: GrantFiled: January 14, 2003Date of Patent: October 5, 2004Assignee: GKN Walterscheid GmbHInventor: Klaus Kämpf
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Patent number: 6779640Abstract: A driving force transmitting clutch device includes a main shaft; a first rotor rotatable around the main shaft; a second rotor rotatable around the main shaft; an inner sleeve member attached to the second rotor for engaging the first rotor, and being movable in an axial direction of the main shaft; an outer sleeve member for receiving the inner sleeve member therein; and a coil spring for urging the inner sleeve member in a direction that the inner sleeve member engages the first rotor and the outer sleeve. When a movement of the outer sleeve is stopped, the outer sleeve moves the inner sleeve for releasing the inner sleeve from the first rotor and for releasing the inner sleeve from the outer sleeve.Type: GrantFiled: June 16, 2003Date of Patent: August 24, 2004Assignee: Nifco Inc.Inventor: Shigemitsu Tomita
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Patent number: 6749049Abstract: A torque limiting coupling defines a longitudinal axis (17) and has a coupling hub (8) with circumferentially distributed through holes. Transfer elements are adjustably held in the holes. A coupling sleeve (6) has first recesses corresponding to the through holes. A switching disk (9) is arranged relative to the coupling hub (8) between a torque transmitting position and a freewheeling position. The switching disk (9) is urged towards the torque transmitting position. This urges the transfer elements in the direction towards the coupling hub (8). The transfer elements engage, for torque transmission, in recesses of the coupling sleeve (6). Coupling sleeve (6), when a predetermined nominal torque is exceeded, is transferable from the torque transmitting position to the freewheeling position. Second recesses, corresponding to the through holes, receive the transfer elements in the freewheeling position.Type: GrantFiled: September 13, 2002Date of Patent: June 15, 2004Assignee: GKN Walterscheid GmbHInventors: Klaus Kampf, Norbert Fartmann, Karl Coenen
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Patent number: 5718313Abstract: A clutch mechanism for selectively setting up or interrupting the delivery of a drive force in accordance with a direction and an amount of rotation of a shaft is disclosed. The mechanism includes a clutch gear rotated by the rotation of a motor. A slide cam is supported by a clutch shaft in such a manner as to be unrotatable relative to the shaft. Ratchet portions respectively provided on the clutch gear and slide cam are selectively coupled or uncoupled in accordance with the direction of rotation, thereby setting up or interrupting drive transmission. A cam portion is formed integrally with the slide cam and releases the ratchet portions when a pin is brought to a preselected position on a cam surface. A cam lever selectively moves the pin toward or away from the cam surface in accordance with the direction of rotation of the clutch gear. The drive source can be shared by a driveline for rotating a shaft to a preselected angular position and other drivelines.Type: GrantFiled: June 7, 1996Date of Patent: February 17, 1998Assignee: Ricoh Company, Ltd.Inventor: Noriaki Sekine
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Patent number: 5103949Abstract: Inoperability due to solenoid freeze-up, electrical malfunction or human error in a mechanical disconnect system for disconnecting first and second shafts includes a disconnect plunger, a first spring for urging the disconnect plunger toward the first shaft whereby the disconnect plunger causes the first shaft to disengage the second shaft when the disconnect plunger is in contact with the first shaft, a solenoid having an armature and windings and a solenoid plunger coupled to the solenoid armature. A second spring urges the solenoid plunger into engagement with the disconnect plunger to thereby prevent movement of the disconnect plunger into engagement with the first shaft. The solenoid windings are controllably energized to move the solenoid armature such that the solenoid plunger is retracted from the disconnect plunger.Type: GrantFiled: November 8, 1990Date of Patent: April 14, 1992Assignee: Sundstrand CorporationInventors: Henry R. Vanderzyden, Gregory G. Johnson
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Patent number: 5031740Abstract: A mechanical disconnect mechanism for an aircraft engine driven constant speed drive unit where the driving shaft (14) and the driven shaft (18) are drive connected by toothed clutch members (16,24). The disconnect involves a cam (38) which causes a sleeve (22) to slide axially by a distance sufficient to disconnect the clutch teeth by engagement with a pawl (42) that is normally held in an inactive position but released under emergency conditions.Type: GrantFiled: November 27, 1989Date of Patent: July 16, 1991Assignee: Sundstrand CorporationInventors: Alfred A. Deichstetter, Martin S. Johnson
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Patent number: 4762212Abstract: An actuator assembly is mounted in a housing and is actuatable by a solenoid carried in the housing. The housing also includes, integral therewith, a card reading arrangement.Type: GrantFiled: September 24, 1985Date of Patent: August 9, 1988Assignee: Ilco Unican Inc.Inventors: Aaron M. Fish, Leon Mayzels, Alexander Branover, Masoud Miresmaili, Jean-Paul Dausseing
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Patent number: 4630544Abstract: The drive motor of a vehicle running on an overhead rail and being drivingly coupled thereto through a drive wheel is selectively connected to and disconnected from that wheel through a coupling mechanism which is constructed for obtaining coupling and disconnection through axial movement, being in turn obtained through rotational adjustment under utilization of a control disk having axially extending pins and being part of the vehicle equipment but cooperating with stationary actuating pieces arranged along the track in appropriate positions to obtain selective connection and disconnection of the drive shaft by engaging these pins and turning the coupling mechanism in one direction or the other.Type: GrantFiled: November 14, 1983Date of Patent: December 23, 1986Assignee: Mannesmann AGInventors: Joachim Hecht, Gerhard Rudat
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Patent number: 4583477Abstract: An overhand sewing machine for the sewing of innersoles to the shanks of shoes comprises two driven conveying disks, an inner conveying disk in contact with the shank material, and an outer conveying disk in contact with the innersole material, the outer disk being displaceable with respect to the inner disk in order to be pressured by spring-loading against the inner disk, and to be capable of moving away against the spring-loading from the inner disk, as required for the insertion of the material to be sewn into the overhand sewing machine.Type: GrantFiled: October 17, 1984Date of Patent: April 22, 1986Assignee: J. Strobel & Sohne GmbH & Co.Inventor: Hans Wagner
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Patent number: 4579205Abstract: A protective clutch wherein a switching ring having an inner bore in the shape of a frustum is axially actuated to control a radially extending actuating pin which operates to place a control ring into and out of rotative engagement with one of a driven and driving member of the clutch. The control ring contains recesses within which torque transmitting balls of the clutch may move when the control ring is in angular alignment therewith to disengage the clutch with angular unalignment of the control ring operating to bring the torque transmitting balls back into torque transmitting position.Type: GrantFiled: October 1, 1984Date of Patent: April 1, 1986Assignee: Jean Walterscheid GmbHInventor: Alexander Post
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Patent number: 4566566Abstract: The invention relates to mechanisms for uncoupling two rotating elements. The device includes a positive clutch sliding on a rotating drive element and subjected to the action of a return spring, an energy storage spring stronger than the return spring and designed to disengage the positive clutch, a cam connected to the drive element and designed to tension the energy storage spring, a pawl capable of keeping the energy storage spring tensioned, and an electromagnet intended to actuate uncoupling and connected to the pawl so as to release the energy storage spring. The device is applicable to temporary uncoupling of two coaxial rotating elements in particular in weaving looms, in order to uncouple the crankshaft from the loom and its main motor from the dobby shaft and its auxiliary control motor.Type: GrantFiled: September 7, 1984Date of Patent: January 28, 1986Assignee: Societe Alsacienne de Construction de Material TextileInventor: Jean-Pierre Vuillet
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Patent number: 4460077Abstract: An overload clutch assembly including a driving member and a driven member having torque transmitting balls operatively disposed therebetween in apertures in the driving member and engageable in recesses in the driven member with a control member axially spring biased to hold the balls in the recesses in the driven member to effect the engaged condition of the clutch. The control member is circumferentially movable relative to the driving member against the action of biasing springs to bring recesses in the control member into alignment with the torque transmitting members so that the clutch assembly can be moved to the disengaged condition. The control member includes a first radially outwardly extending cam which is engageable by a radially movable external control tappet to cause circumferential movement of the control member for bringing the clutch into the disengaged condition when required other than in response to torque overload.Type: GrantFiled: September 9, 1981Date of Patent: July 17, 1984Assignee: Jean Walterscheid GmbHInventor: Hubert Geisthoff
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Patent number: 4371067Abstract: A drive arrangement consisting of a DC motor having an oscillating mode and a unidirectional rotation mode, the motor driving a mechanically shifted transmission. The transmission shifter arrangement is operated by an incremental rotation of the drive motor which causes a cam follower-shifter member to be axially displaced from a neutral position to produce either a spin or agitate drive condition of the transmission.Type: GrantFiled: November 9, 1981Date of Patent: February 1, 1983Assignee: General Electric CompanyInventor: Otto F. Gerry
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Patent number: 4244455Abstract: A rotary power transmitting shaft decoupling device has a driving component xially aligned with a driven component and keyed thereto by a plurality of force transmitting elements held in operable relation to the driving and driven components, respectively, by an axially shiftable slide element that is coaxial with the driving and driven components and is provided with a lead screw. Actuation to effect decoupling is effected by engaging the lead screw with a plunger so that rotation of the device results in axial shifting of the slide element and withdrawal of the force transmitting elements from operable relation to the driving and driven components.Type: GrantFiled: October 17, 1978Date of Patent: January 13, 1981Assignee: The United States of America as represented by the Secretary of the NavyInventor: W. Aleck Loker
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Patent number: 4126098Abstract: A zig-zag sewing machine is disclosed which can be controlled by various special cam units for producing special patterns of zig-zag stitches, zig-zag stitch patterns combined with patterned work feed control, or closed stitch groups such as buttonholes. A cam unit for buttonholing is also disclosed in which a clutch is used for selective engagement of the cam unit. This clutch uses axially shiftable ball bearings for selectively engaging notches in a driving plate, coupling the driving plate to the rest of the buttonhole cam unit.Type: GrantFiled: December 12, 1977Date of Patent: November 21, 1978Assignee: The Singer CompanyInventor: Lionel J. Coulombe
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Patent number: 4119183Abstract: A clutch comprising a drive rotary member, a driven rotary member engageable with and disengageable from the drive rotary member by being moved relative thereto in the directions of axis of rotation, an annular cam interposed between the drive rotary member and the driven rotary member, and an engaging member manually operably mounted on a case to prevent rotation of the cam. When the engaging member is operated to project toward the driven rotary member through the cam, the driven rotary member is held out of engagement with the drive rotary member reliably.Type: GrantFiled: October 7, 1976Date of Patent: October 10, 1978Assignee: Kubata Ltd.Inventors: Hisatake Fujioka, Tomeo Umemoto, Masamitsu Shingaki, Mikio Yuki, Mitsuhiro Sato, Shosuke Kawabata
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Patent number: 4013152Abstract: Single revolution clutch mechanisms are conventionally employed in machines such as punch presses and the like. Such clutches are usually provided with single stroke mechanisms so that an operator must release the "RUN" buttons before a subsequent cycle can be initiated. The present invention shows apparatus which prevents the initiation of a subsequent cycle of operation whenever the single stroke mechanism comes into operation. A latch is released upon such operation of the single stroke mechanism which prevents operation of the cycle-initiating means by the operator and requires the services of a maintenance man at the clutch mechanism to restore the clutch-iniatiating and single stroke mechanism to operating condition.Type: GrantFiled: January 9, 1976Date of Patent: March 22, 1977Assignee: Niagara Machine & Tool WorksInventor: Clarence O. Jones, Jr.