Torque-responsive Brake Patents (Class 192/223)
  • Patent number: 11480227
    Abstract: A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 25, 2022
    Assignee: WEDGEROCK LLC
    Inventors: Thomas C. West, Emmanuel H. Marsh-Sachs
  • Patent number: 10947697
    Abstract: A pivoting unit for construction equipment is provided which can ensure a brake performance for an upper pivoting body thereof for any pivoting power source applied thereto without a limitation to the applied pivoting power source. The pivoting unit for a construction equipment, comprises a pivoting motor, a pivoting reducer connected to the pivoting motor, and a parking brake device which is installed between the pivoting motor and the pivoting reducer and restricts the rotation of the pivoting reducer independently of the pivoting motor.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 16, 2021
    Assignee: Volvo Construction Equipment AB
    Inventors: Won Kil Choe, Dong Gyu Lee
  • Patent number: 10843334
    Abstract: A mechanical stopper device wherein a fixed body includes a fixing-side stopper, including: a lever that can swing about a supporting shaft provided to the fixed body; and a pair of elastic bodies, attached to the fixed body, on both sides in the lever swinging direction, and which can contact with both side surfaces of the lever. Further, a rotating body includes a stopper pin that can be in contact with both the side surfaces of the lever. The ratio between a distance (a) from a supporting point of the lever to a contact position where the lever and the stopper pin are in contact with each other, and a distance (b) from the supporting point of the lever to a contact position where the lever and the elastic bodies are in contact with each other is 1.05?a/b?2.30, and thickness (D) of the elastic bodies is 20 mm?D?40 mm.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 24, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Taichi Igarashi, Yuki Shika, Motoaki Murakami, Yasuharu Sakurai, Tatsuji Minato
  • Patent number: 10822074
    Abstract: A load detent assembly for restricting creep of a rotating assembly of an actuator used to actuate an aircraft flight control surface. The load detent assembly includes an engagement member having circumferentially spaced engagement surfaces/protruding portions, and a load detent having a stoppage member radially biasable towards the engagement member for interengagement between the engagement surfaces to restrict creep of the rotating assembly. One of the engagement member or the load detent is configured for rotation radially inward of the other of the engagement member or the load detent through at least 360 degrees of rotation. The other of the engagement member or the load detent is configured for being fixed radially outward of the one of the engagement member or the load detent.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 3, 2020
    Assignee: Parker-Hannifin Corporation
    Inventors: David Edwards, Abbas M. Charafeddine, Eric A. Polcuch
  • Patent number: 10661685
    Abstract: Disclosed herein is a pumping apparatus for a vehicle seat, which includes an input member rotated by torque input from a handle lever, a clutch unit configured to transmit the input torque to a link mechanism of a seat cushion, a brake unit configured to cut off the torque input in reverse from the link mechanism, a housing accommodating the clutch unit therein, and a fixing member coupled to a rear end of the housing, wherein the input member includes a first input member disposed in front of the housing, and a second input member connected to the first input member and accommodated in the housing, and the clutch unit includes a torque transmission member arranged on an outer peripheral surface of the second input member, and an annular control member having a clutch friction surface formed on an inner peripheral surface thereof.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: May 26, 2020
    Assignee: DAS Co., Ltd.
    Inventors: Jae Ho Kim, Ji Yong Park
  • Patent number: 10654378
    Abstract: This actuator comprises a frame, a motor, an output shaft, and a drive train for driving the output shaft via the motor. The drive train comprises an upstream element, a downstream element, and a device for coupling the upstream element to the downstream element. Said coupling device has a first configuration for transmitting all of the torque exerted by one of the upstream and downstream elements on the coupling device to the other of the upstream and downstream elements when said torque is below a threshold torque, and a second configuration for diverting at least part of said torque exerted by one of the upstream and downstream elements on the coupling device to the frame when said torque is at least equal to the threshold torque.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 19, 2020
    Assignee: ZODIAC ACTUATION SYSTEMS
    Inventor: Sylvain Pons
  • Patent number: 10582991
    Abstract: An added inertia resonant system (12) for a power toothbrush (10) comprises a drive shaft (16), a drive system (22), and at least one inertial weight member (24). The drive shaft (16) has a principal axis (26) that defines a center of rotation. The drive system (22) imparts a reciprocating motion to the drive shaft (16) about the principal axis(26). The at least one inertial weight member (24) couples to the drive shaft (16) and comprises a planar material having a complex shape balanced along an x-, y-and z-axis to enable the drive system (22) to achieve low power, high amplitude motion of the drive shaft (16) when placed under user loading. A method for providing added inertia in a resonant system for a power toothbrush is also disclosed.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 10, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Lane Evan Kleppen, Scott Robert Wills
  • Patent number: 10478966
    Abstract: A workpiece support system includes: a workpiece support device that supports a workpiece by a support body having a support that comes in contact with the workpiece; and a robot that is separately provided outside the workpiece support device and moves the support, wherein the support is configured to be movable within a predetermined range and lockable at an arbitrary position, and wherein, by grasping a part of the locked support body, the robot unlocks the support and moves the unlocked support according to the shape of the workpiece.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 19, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiko Sekiguchi, Masataka Mizuno, Kazuyuki Ogusu, Kenichi Asakuma, Kimihiro Nanaeda
  • Patent number: 10428882
    Abstract: A brake device comprises: an outer race having a cylindrical inner peripheral surface; a plurality of brake shoes disposed at a radially inner side of the outer race and arranged in a circumferential direction, each brake shoe having a pair of brake surfaces facing the inner peripheral surface and configured to be contactable with the inner peripheral surface and an inside surface facing radially inward; an output-side rotary member disposed at a radially inner side of the brake shoes, having an opposed surface provided at an outer periphery thereof and facing the inside surface; and an input-side rotary member configured to contact the brake shoes in the circumferential direction and thereby capable of imparting a rotary torque to the brake shoes. The brake shoe has a support surface disposed between the brake surfaces and configured to be contactable with the inner peripheral surface.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 1, 2019
    Assignee: TS TECH CO., LTD.
    Inventor: Hiroyuki Kaku
  • Patent number: 10342349
    Abstract: A recliner mechanism for a seat. The recliner mechanism may have a first plate and a cartridge. The first plate may define a through hole that may receive the cartridge. The cartridge may have a pawl spring slot that may receive a pawl spring that may exert a biasing force on a pawl.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 9, 2019
    Assignee: Lear Corporation
    Inventors: Eric Veine, James S. Wawrzyniak, Peter Robert McCulloch
  • Patent number: 10337593
    Abstract: A lower attachment system for a trimmable horizontal stabilizer actuator (THSA) includes a screwshaft forming a part of or coupled to a main screw of the actuator, the screwshaft having an axial direction and a primary ballnut disposed on the screwshaft and forming a part of a primary load path of the lower attachment system. The THSA also includes a lower secondary nut and an upper secondary nut as well as a secondary connection arranged for axial and rotational movement and coupled to each of the lower secondary nut and the upper secondary nut. The secondary connection is arranged to be loaded when the secondary load path is loaded and the secondary load path also includes the upper and lower secondary nuts.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: July 2, 2019
    Assignee: GOODRICH ACTUATION SYSTEMS SAS
    Inventors: Raphael Medina, Anh-Vu Abdul-Bari
  • Patent number: 10094437
    Abstract: A self-braking gear (2) comprises: an input shaft (4), an output shaft (6), a braking mechanism (8), which is configured for braking the output shaft (6), and a planetary gear (10). The planetary gear (10), which is connected between the input shaft (4) and the output shaft (6), is configured to activate the braking mechanism (8) in order to brake the output shaft (6), when no torque is provided via the input shaft (4). The self-braking gear (2) may be employed in a people conveyor (50) such as an escalator.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 9, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Philipp Schedl
  • Patent number: 9851225
    Abstract: A non-volatile, absolute rotation sensor employs a radial guide and spiral guide rotating with respect to each other to move a marker element continuously along the radial guide so that a distance of the marker element along the radial guide provides an indication of shaft movement over multiple turns. A sensor system senses the distance of the marker element along the radial guide to provide an electric output.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: December 26, 2017
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Brian Gregory, Weiya Zhang
  • Patent number: 9687947
    Abstract: A hand-held power tool device includes at least one spindle unit, which is provided in particular for transmitting a drive motion of a drive unit to a tool receptacle, and a locking unit, which is provided in particular for locking the at least one spindle unit in at least one locking state, and which has at least one spindle lock element, which includes at least one entrainment element, and which is provided for at least partially transmitting the drive motion of the drive unit to the at least one spindle unit in at least one operating state. The spindle lock element has at least one clamping surface, which is situated at least partially offset from the at least one entrainment element at least in an axial direction.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 27, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Heiko Roehm, Tobias Herr
  • Patent number: 9455607
    Abstract: A clutch including a drive shaft, drive side rotation body, driven shaft, driven side rotation body, clutch housing, and lock member is disclosed. During non-rotation of the drive side rotation body, when the driven side rotation body is rotated, the lock member is pushed by the driven side rotation body and moved outward in a radial direction thereby bringing the contact portion into contact with the inner circumferential surface of the clutch housing. During rotation of the drive side rotation body, the drive side rotation body pushes a drive side cam surface in the rotation direction, and the drive side cam surface acts to move the lock member inward in the radial direction and push the lock member against the driven side rotation body. Thus, the lock member is sandwiched between the drive side rotation body and the driven side rotation body thereby coupling the drive side rotation body and the driven side rotation body with the lock member to be integrally rotatable.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: September 27, 2016
    Assignee: ASMO CO., LTD.
    Inventors: Nobuo Mizutani, Tomoki Yamashita
  • Patent number: 9328627
    Abstract: A bearing device, for example in a turbomachine is provided. Between bearing races of the anti-friction bearings and a casing component positioned adjacent the bearing races is arranged a device for converting an axial force between the anti-friction bearings into a torque at the bearing races in the manner of a ball screw or planetary screw assembly. The bearing races are connected to one another by a feedback mechanism such that a torque at one bearing race can be converted into an opposite torque at the other bearing race.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 3, 2016
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Sebastian Hennig
  • Patent number: 9260181
    Abstract: The present invention relates to a drive system for a variable camber aircraft wing having position variable front flaps and/or rear flaps, having drive shafts, which are arranged such that that the flaps undergo a change of position in operation of the drive shafts, and having one or more drive units in driving connection with the drive shafts, wherein at least one switchable coupling is provided via which the drive shafts of two flaps of an aircraft wing can be coupled to one another.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: February 16, 2016
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Susanne Conrad, Werner Mangler, Josef Bär, Bernd Schievelbusch
  • Patent number: 9133921
    Abstract: To improve workability and sealing performance of a coolant when a plurality of nuts in a ball screw are brought into contact with one another, the plurality of nuts being coupled to one another, assembled to one threaded shaft and cooled by flowing the coolant through through-holes formed in the plurality of nuts in axial directions of the plurality of nuts. The ball screw includes counterbores of the through-holes formed on opposing end faces of both of adjoining nuts, and a ring-shaped sealing member inserted thereto. The counterbores are formed such that a depth of one counterbore is larger than a length of the sealing member, and the a depth of the other counterbore is smaller than the length of the sealing member, and such that circumferential positions of the counterbores of the adjoining nuts face each other when a desired preload is exerted.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: September 15, 2015
    Assignee: NSK Ltd.
    Inventors: Masashi Shindo, Junji Minakuchi
  • Patent number: 8789677
    Abstract: An adjustment device for adjusting a vehicle seat component is provided. The adjustment device comprising a rotary fitting for adjusting the vehicle seat component, which includes a first fitting part and a second fitting part pivotally mounted with respect to the first fitting part about an axis of rotation, a drive device connected with the rotary fitting for driving the rotary fitting, and an adjustment element of the drive device for actuating the drive device. The drive device is formed to transmit a force present on the adjustment element on the drive side for adjusting the vehicle seat component to the rotary fitting, but to block a force present on the rotary fitting on the output side.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: July 29, 2014
    Assignee: Brose Fahrzeugteile GmbH & Co. KG Coburg
    Inventors: Frieder Krueger, André Blinzler, Stephanie Hartleb, Juergen Siller, Matthias Weiss, Andreas Weder, Volker Moeller
  • Patent number: 8684105
    Abstract: A technique is provided which improves durability in a power tool having a torque transmission device. The representative power tool has a torque transmission device 151. The torque transmission device 151 includes a projection 171 formed on one of opposed surfaces of a first rotating member 153 and a second rotating member 155 and protruding in a direction of a rotational axis, a recess 161 for receiving the projection 171, which is formed in the other of the opposed surfaces and recessed in the direction of the rotational axis, a projection-side engagement surface 175a formed on the projection 171, and a recess-side engagement surface 165a formed on the recess 171. Torque is transmitted when the projection-side and recess-side engagement surfaces 175a, 165a are engaged with each other, while the torque transmission is interrupted when the projection-side and recess-side engagement surfaces 175a, 165a are disengaged from each other.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 1, 2014
    Assignee: Makita Corporation
    Inventors: Kiyonobu Yoshikane, Yoshitaka Machida
  • Patent number: 8496425
    Abstract: The end-effector includes an articulating frame mounted on an indexable boom. Tool modules mount on the end-effector and connect to a workpiece. Each tool module includes a flexible dress package including a cable carrier. A channel rail is supported by the end-effector frame and guides the cable carrier. A setup tool and associated process can reconfigure the positions of the tool modules and the frame and boom of the end-effector.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 30, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Yhu-Tin Lin, Andrew L. Bartos, Roland J. Menassa, Douglas R. Black, Joseph J. Ekl, Jr., Mark A. Cline
  • Patent number: 8376115
    Abstract: Disclosed is a bidirectional self-locking device including a housing (10) and a gear shaft (20). A first locking device and a second locking device are disposed in the housing (10). When a first locking cam (30) is driven to rotate in a first direction, protuberances on both sides of the first locking cam (30) are respectively in contact with a first locking element (31) and a second locking element (32), such that the first locking element (31) and the second locking element (32) tend to move radially outward and thus tightly press against an inner wall of the housing (10) so as to form a locking engagement. The second locking device has a similar structure to that of the first locking device. When a second locking cam (40) is rotated in a direction opposite to the first direction, a third locking element (41) and a fourth locking element (42) press against the inner wall of the housing (10) so as to form a locking engagement.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 19, 2013
    Assignee: Hubei Aviation Precision Machinery Technology Co., Ltd.
    Inventors: Chengxin Cai, Yuanhe Gao
  • Patent number: 8307911
    Abstract: A torque system of a power tool includes a combination of a first body and a second body, in which a toothed ring is assembled; and a mode selecting assembly, a torque adjusting module and control pins disposed on the second body. The torque system further includes restricting mechanisms formed on the second body, and the control pins are respectively disposed in the restricting mechanisms. One side of the control pin has a stopper block, and the restricting mechanism includes a first stopper, a second stopper and a through hole. When the control pin is driven to rotate and the stopper block faces the first stopper or the through hole, the object of switching each operation mode is achieved.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 13, 2012
    Assignee: Porite Taiwan Co., Ltd.
    Inventors: Chiou Long Chu, Jung Kwan Kuo, Yen Shan Fang, Chin-Chiang Chen, Ching-Hsu Wu
  • Patent number: 8152098
    Abstract: A torque limiter device for an aircraft wing-mounted flap includes a drive input, an output rotatable in response to rotation of the drive input, and a roller-jammer operable in the event that the torque transmitted between the drive input and the output exceeds a predetermined level to apply a braking load to the drive input and/or the output, and a brake device operable to apply a braking load to the roller-jammer device to cause activation thereof.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 10, 2012
    Assignee: Goodrich Actuation Systems Limited
    Inventor: Kevin Richard Hadley
  • Patent number: 8136569
    Abstract: An operating unit (5) for operating a window covering. The operating unit (5) includes a housing (11), a rotatable drive pulley (13) having an axis of rotation and first and second mounting positions in the housing, with respect to the axis of rotation, an engagement device (15), rotatable about the axis of rotation, and a brake mechanism (45, 47, 49) for, in use, arresting the engagement device when the drive pulley (13) is not rotated and preventing the engagement device and drive pulley from being back driven by the window covering. The engagement device (15) has a plurality of circumferentially spaced pins (19) parallel to the axis of rotation. The drive pulley (13) has a corresponding plurality of openings (17) facing the pins (19). In the first mounting position, the pins on the engagement device (15) engage with the corresponding openings (17) in the drive pulley and the engagement device rotates with the drive pulley.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: March 20, 2012
    Assignee: Hunter Douglas Industries BV
    Inventors: Jorg Bohlen, Lars Koop
  • Publication number: 20110278133
    Abstract: A gapless main shaft locking apparatus includes a fastening ring, an elastic retaining device, a plurality of detent pins, a driving plate and an output shaft. The elastic retaining device is installed in the fastening ring and has an inner space in which elastic portions and cylinder portions are disposed. Each of the detent pins is disposed between one of the elastic portions and one of the cylinder portions. The driving plate has a central hole, and the periphery of the central hole includes fan-shaped convex portions. A side of the driving plate has a plurality of concave slots for receiving the elastic retaining device. The output shaft includes a polygonal shaft having a regular polygonal cross section. The polygonal shaft passes through the central hole of the driving plate, and each side of the polygonal shaft is contacted with one of the detent pins.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 17, 2011
    Applicant: TOP GEARBOX INDUSTRY CO., LTD
    Inventor: Ting-Kuang Chen
  • Publication number: 20110221291
    Abstract: Transmission drive unit (10), in particular for adjusting movable parts in the motor vehicle, having a drive motor (12) and a transmission (14) which is driven thereby, wherein the transmission (14) has an output element (70) and a self-locking device (60) with a locking element (63, 55), and the locking element locks the transmission (12) with respect to torques which are applied to the transmission (12) by the output element (70), wherein the transmission (12) with its transmission toothing (47) and a motor shaft bearing (32, 28) is designed to have optimized efficiency and minimal friction, and the drive motor (12) has, as an exciter magnet, a sleeve-shaped annular magnet (18) which is arranged in a pole pot (16) which forms a magnetic return.
    Type: Application
    Filed: June 23, 2009
    Publication date: September 15, 2011
    Applicant: ROBERT BOSCH GMBH
    Inventors: Tarek Mili, Detlef Lauk, Uwe Merkelbach
  • Patent number: 7861840
    Abstract: An anti-back drive system preferably includes a drive housing, a drive ring, a lock ring and an output pinion. The drive housing includes a drive counterbore. The drive housing is secured to an electric motor. The drive ring preferably includes a base member and a plurality of drive projections. The drive ring is secured to a drive shaft of the electric motor. The lock ring includes a plurality of inward facing cam surfaces and a plurality of inward facing loop projections. The output pinion includes a drive gear and a plurality of drive fingers, which extend radially outward from the output pinion. The plurality of inward facing cam surfaces are sized to receive an end perimeter of said plurality of drive fingers. A push on clip is secured to the drive shaft to retain the drive ring, the lock ring and the output pinion on the drive shaft.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: January 4, 2011
    Assignee: Winzeler Gear, Inc.
    Inventor: Arthur E. Dornan
  • Publication number: 20100219037
    Abstract: Disclosed is a bidirectional self-locking device including a housing (10) and a gear shaft (20). A first locking device and a second locking device are disposed in the housing (10). When a first locking came (30) is driven to rotate in a first direction, protuberances on both sides of the first locking cam (30) are respectively in contact with a first locking element (31) and a second locking element (32), such that the first locking element (31) and the second locking element (32) tend to move radially outward and thus tightly press against an inner wall of the housing (10) so as to form a locking engagement. The second locking device has a similar structure to that of the first locking device. When a second locking cam (40) is rotated in a direction opposite to the first direction, a third locking element (41) and a fourth locking element (42) press against the inner wall of the housing (10) so as to form a locking engagement.
    Type: Application
    Filed: October 10, 2008
    Publication date: September 2, 2010
    Applicant: Hubei Aviation Precision Machinery Technology Co., Ltd.
    Inventors: Chengxin Cai, Yuanhe Gao
  • Patent number: 7694796
    Abstract: The invention relates to a load-torque lock (10) for automatic locking of load-side torques in the event of a drop or discontinuation of a drive-side torque, comprising a housing (11) which is fixed to a chassis and axially oriented means of attack (19), an output shaft (34) and axially oriented means of attack (37) and pivotally mounted clamping bodies (24) which are arrested or clamped by load torques on the housing (11) and are cancelled out by drive-sided torques from the housing bore. In order to obtain a powerful, robust and compact load-torque lock, the means of attack (37) of the output shaft (34) are arranged such that they cooperate with the means of attack (19) of the drive shaft (17) in the event of drive-side torques and cooperate with the clamping bodies (24) in the event of output-side torques.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: April 13, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Rico Lampert, Diyap Bueyuekasik, Tarek Mili
  • Publication number: 20080296036
    Abstract: The invention relates to a clutch (2) for a hand-operated electrical tool, in particular for a hand-held electrical device with a rotating tool, such as a drill or hammer drill, where the clutch (2) disengages automatically when a defined disengagement torque is exceeded. The invention further relates to a hand-operated electrical tool, in particular a hand-held electrical device with a rotating tool, which has this type of clutch (2). The clutch (2) is switchable between two clutch conditions, which have a different level of disengagement torque.
    Type: Application
    Filed: January 15, 2007
    Publication date: December 4, 2008
    Inventors: Robert Simm, Cornelis Van Der Schans
  • Patent number: 7451799
    Abstract: Which has the following essential elements: A drive shaft (1) joined to the rolling drum (23) of a blind (21), joined by means of a first freewheel mechanism (2) with a drive cylinder (4) which has a freeing sector (5). A cogged wheel (17) which has protuberances (18) into which fit the relevant extensions (19) of the slats (20) of the blind (21), joined via a second freewheel mechanism (15) with a blocking sector (26). A brake cylinder (7) with teeth (27) housing a brake spring (9) whose ends form stops (10), with the blocking sector (25) acting on the stops (10) in the direction to increase the apparent diameter of the brake spring (9) and the freeing sector (5) in the direction to reduce its apparent diameter. Various ratchets (28) that can lock against the teeth (27) as a function of the relative position of a transmission crown (6) on which they are articulated with respect to the drive cylinder (4).
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: November 18, 2008
    Inventor: Miguel Emper Sanchez
  • Patent number: 7404475
    Abstract: The invention relates to a bidirectional drive for rotating in the one or the other direction of drive a drive wheel which is linked with an adjusting device. The bidirectional drive includes a drive lever which can be rotated about a drive axis, starting from an initial position, in the one or the other direction. The lever is linked with a coupling element for expanding a spring element that is at least partially supported by the cylindrical drive surface of the drive wheel and that entrains the drive wheel in the peripheral direction when the drive lever is moved away from the initial position, while the spring element is no longer supported by the cylindrical drive surface of the drive wheel and the drive wheel is not entrained when the drive lever is returned to the initial position. The coupling element includes expansion cams that can be tilted about an axis spaced apart from the drive axis.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: July 29, 2008
    Assignee: Brose Fahrzeugteile GmbH & Co. KG, Coburg
    Inventors: Georg Scheck, Frieder Krüger, Marcus Klopp, Stephanie Angermüller, Matthias Weiss
  • Patent number: 7353930
    Abstract: A clutch assembly 10 for use in a housing 26 has a race surface 32 and includes a shaft 13; an output structure 11; a cam 16; and a clutch plate 18. Follower structure 28 is associated with the cam. An input structure 14 is mounted on the shaft for rotation with respect to the shaft. The input structure 14 receives an input motion such that rotation of the input structure causes rotation of the cam 16 and shaft 13 so as to drive the output structure 11. During a back drive condition of the motor, when the output structure 11 is driving and torque is transmitted to the shaft 13 and thus to the cam 16, the cam causes the follower structure 28 to contact and exert pressure on the race surface 32 thereby preventing rotation of the shaft 13.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 8, 2008
    Assignee: Continental Automotive Systems US, Inc.
    Inventor: Luis E. Acosta
  • Patent number: 7311190
    Abstract: A clutch assembly for a window regulator motor includes a gear housing with a helical gear disposed in the gear housing. The helical gear includes first and second circumferential surfaces. An opposing pair of slots is formed through the first circumferential surface of the helical gear. A cushion is coupled to the helical gear. A cushion plate is in turn connected to the cushion. A pair of spaced locking pawls is pivotally attached to the helical gear and extends through the pair of slots formed through the first circumferential surface. The cushion plate includes a cam section formed thereon. The cam section contacts one of the pair of locking pawls in response to rotation between the helical gear and cushion plate wherein the locking pawl engages a gear housing preventing movement of the helical gear.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: December 25, 2007
    Assignee: Dura Global Technologies, Inc.
    Inventor: Gerardo Diez-Martinez Cervantes
  • Patent number: 7261196
    Abstract: The present invention relates to a drive assembly including an adapter that enables the use of a lightweight backstopping clutch with a driven shaft. The adapter is coupled to the driven shaft for rotation therewith and forms a stub shaft smaller than the driven shaft. The clutch has an inner race that is disposed about the stub shaft and an outer race fixed against rotation so as to allow rotation of the stub shaft and driven shaft in one direction and inhibit rotation in an opposition direction.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: August 28, 2007
    Assignee: Warner Electric Technology LLC
    Inventors: Jack Eric Pederson, John Thomas Haddon, Amy Lynn Chan, Michael Paul Travis
  • Patent number: 7163097
    Abstract: A clutch assembly 100 is provided for a motor having an armature shaft and a worm shaft having a worm constructed and arranged to engage a gear. The clutch assembly includes a clutch housing 112 including a race surface 132; a cam 117 coupled to the worm shaft; follower structure 122 operatively associated with the cam; a clutch plate 114, and a clutch coupler 118 associated with the clutch plate, the cam, and the follower structure. The coupler is coupled to the armature shaft for rotation therewith, such that rotation of the coupler rotates the clutch plate, the cam and follower structure, and thus the worm shaft. During a back drive condition of the motor, when torque is transmitted to the worm shaft and thus to the cam, the cam is constructed and arranged to causes the follower structure 122 to contact and exert pressure on the race surface 132 thereby preventing rotation of the worm shaft.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: January 16, 2007
    Assignee: Siemens VDO Automotive Corporation
    Inventor: Luis E. Acosta
  • Patent number: 7051860
    Abstract: A displacement device for producing a rotational movement with an output element adjustable in angle by operating a drive element. A load torque lock mounted between the drive element and the output element blocks, with force locking connection, torque introduced on the output side and transfers torque introduced on the drive side to the output element. Between the drive element and the load torque lock and/or between the output element and the load torque lock is a play compensating device which compensates the torsion angle play between the drive element, the output element and the load torque lock. The displacement device is used in particular for window lifters or seat adjusters of vehicles.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: May 30, 2006
    Assignee: Brose Fahrzeugteile GmbH & Co KG, Coburg
    Inventors: Georg Scheck, Peter Schumann
  • Patent number: 6994199
    Abstract: The invention concerns a load torque lock for automatically locking load-side torques in the case of a decrease or cessation of a drive-side torque having a housing (11) fixed to a frame, a locking ring (17) permanently connected to it and a locking body (17) cooperating with it and revolving on the drive side, with locking devices which, on the one hand, clamp on the locking ring (17) with the occurrence of a load torque by swiveling the locking body (17) by means of locking elements (27, 28) of the output shaft (15) and, on the other hand, release from the locking ring (17) by swiveling the locking body (17) back by means of driving elements (23, 24) of the drive shaft (14). To avoid undesired friction or defective jamming of the locking devices on the locking ring (18) by the centrifugal forces of the locking body (17) it is embodied in such a way that its mass center of gravity (M) lies in the area of the rotational axis of the drive shaft and the output shaft that are aligned with one another.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: February 7, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Ingo Drewe, Guido Schneider
  • Patent number: 6974014
    Abstract: A rotary coupling comprises a driving part, a drivable part, a fixed part in which the driving and drivable parts are each rotatable coaxially, and a set of coupling members carried by one of the driving and drivable parts for torque-transmitting engagement with the other. The coupling members are selectively positionably arranged so that, in a first condition, the coupling members are juxtaposed to a primary annular contact surface of either the fixed part or the drivable part and, in a second condition, the coupling members are juxtaposed to a secondary annular contact surface of the driving part. Each coupling member is free to move relative to the driving and drivable parts into and out of engagement with the primary and secondary annular contact surfaces.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: December 13, 2005
    Assignee: SAMAR Systems Limited
    Inventor: Raul Montanana
  • Patent number: 6845857
    Abstract: A parallel shaft reduction gear with a backstop mechanism superior in replacement and maintenance operations is provided. The parallel shaft reduction gear that is used in combination with a motor and equipped in a gear case with primary-stage shafts which are disposed axially parallel to an output shaft. The output shaft and the primary-stage shaft are rotatably supported by bearings on the motor side and on the opposite side of the motor side with respect to the gear case, respectively. The backstop mechanism that prevents reverse rotation of the output shaft is installed in any one of the output shaft and the primary-stage shaft on the axially outside of the corresponding opposite motor side bearing (lower side in the figure).
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 25, 2005
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Naoki Matsuo, Kazunari Saiki
  • Patent number: 6832676
    Abstract: A rotary coupling comprises a driving part, a driven part, and a fixed part in which the driving and driven parts are rotatable coaxially. Coupling units are provided to be in torque-transmitting engagement with driving and driven parts. Coupling units are juxtaposed to an annular braking surface of the fixed part, and are free to move into and out of engagement with the braking surface. Each coupling unit includes a wedging surface and a bearing surface. A driving torque, applied by the driving part to the coupling units, is transmittable to the driven part without engagement of the coupling units with the braking surface. A reverse torque, applied by the driven part to the coupling units, first moves the bearing surface into non-wedging engagement with the braking surface and then progressively moves the wedging surface into progressive wedging engagement with the braking surface.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: December 21, 2004
    Assignee: SAMAR Systems Limited
    Inventor: Raul Montanana
  • Publication number: 20040238317
    Abstract: A clutch mechanism 20 is provided for a motor 10. The motor has a shaft 12, a worm 14 associated with the shaft, a gear 16 engaged by the worm, and a friction surface 27. The clutch mechanism 20 includes a pressure plate 22 mounted for movement with respect to the shaft toward and away from the friction surface 27. A spring 26 is constructed and arranged to bias the pressure plate towards the friction surface. A stop 30 is constructed and arranged to limit movement of the pressure plate in a direction away from the friction surface. Whereby, under a back drive condition of the motor when the motor is not energized and the gear is moved by an externally applied torque causing an axial force to be exerted on the worm inducing an axial and an angular movement to the shaft, the pressure plate is constructed and arranged to move towards and engage the friction surface thereby impeding rotation of the shaft.
    Type: Application
    Filed: July 9, 2003
    Publication date: December 2, 2004
    Applicant: Siemens VDO Automotive Corporation
    Inventor: Luis E. Acosta
  • Publication number: 20040231952
    Abstract: A power tool and spindle lock. The spindle lock includes a spring and a detent arrangement to control and buffer the rotation of the spindle and to delay the engagement of the locking elements. In some aspects, the invention provides a spindle lock including a spring element which applies substantially equal spring force to delay the operation of the spindle lock when the spindle is rotated in the forward direction or in the reverse direction. In some aspects, the invention provides two spring members which cooperate to apply the substantially equal force to delay the operation of the spindle lock when the spindle is rotated in the forward direction or in the reverse direction.
    Type: Application
    Filed: March 9, 2004
    Publication date: November 25, 2004
    Inventors: Daijiro Nakamura, Robert W. Klemm
  • Publication number: 20040144615
    Abstract: The invention concerns a load torque lock for automatically locking load-side torques in the case of a decrease or cessation of a drive-side torque having a housing (11) fixed to a frame, a locking ring (17) permanently connected to it and a locking body (17) cooperating with it and revolving on the drive side, whose locking means (19, 20), on the one hand, clamp on the locking ring (17) with the occurrence of a load torque by swiveling the locking body (17) by means of locking elements (27, 28) of the output shaft (15) and, on the other hand, release from the locking ring (17) by swiveling the locking body (17) back by means of driving elements (23, 24) of the drive shaft (14). To avoid undesired friction or defective jamming of the locking means (19, 20) on the locking ring (18) by the centrifugal forces of the locking body (17) it is embodied in such a way that its mass center of gravity (M) lies in the area of the rotational axis of the drive shaft and the output shaft that are aligned with one another.
    Type: Application
    Filed: November 6, 2003
    Publication date: July 29, 2004
    Inventors: Ingo Drewe, Guido Schneider
  • Publication number: 20040124061
    Abstract: A braking drive for a control cable or shaft has a drive shaft with a radial journal. A contractible brake ring has opposing ends defining a gap, with the journal in the gap The ring has an exterior surface biased outwards and two interior detents. A stationary interior housing circumscribes the ring, with an interior surface in frictional contact with the ring. An exterior portion of the housing has bosses being disposed within the detents of the ring. Friction between the ring and the housing interior arrests rotation of the journal and drive shaft until a force on the exterior portion of the housing moves the bosses, transferring the force to the ring via the detents, whereby the ring is contracted, releasing the frictional brake between the housing and the ring, thereby allowing rotation of the drive shaft.
    Type: Application
    Filed: October 13, 2003
    Publication date: July 1, 2004
    Applicant: Schukra Geratebau AG
    Inventor: Wilhelm Schuster
  • Patent number: 6725994
    Abstract: A mechanism useful as a slip clutch or brake, including a first member having a cylindrical inner wall, a second generally cylindrical member received coaxial within the first member so as to be rotatable therein, and at least one generally annular third spring member between the first and second members, the at least one third member having an external surface in contact with the inner wall of the first member, the second member having at least one longitudinal recess defining two wall surfaces, the at least one third member having ends extending inwardly into the at least one recess, each of the ends of the at least one third member contacting the wall surfaces.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: April 27, 2004
    Assignee: Custom Products Corporation
    Inventor: Philip H. Bacon
  • Patent number: 6715562
    Abstract: An output shaft locking device includes a hollow frame through which an output shaft extends. The output shaft has a polygonal end which is connected to a driving device. A locking device includes a fixed ring received in an underside of the hollow frame and an inner ring is rotatably received in the fixed ring. A first polygonal hole is defined through the inner ring and recesses are defined in an underside of the inner ring. The driving device has a driving disk and a second polygonal hole is defined through the driving disk so that the polygonal end of the output shaft engages the two polygonal holes. A plurality of protrusions is formed on a top of the driving disk and matches the recesses in the underside of the inner ring. Gaps are defined between the polygonal end and the two polygonal holes. When the driving device does not provide power to the output shaft, the output shaft is locked by the locking device.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: April 6, 2004
    Assignee: Power Network Industry, Co., Ltd.
    Inventor: Ting-Kuang Chen
  • Patent number: 6702089
    Abstract: The invention relates to an adjustment device for producing a rotational movement that comprises an output element (3) that can be adjusted at an angle by actuating a drive element (2). The adjustment device further comprises a load moment lock (1) interposed between the drive and the output element (2, 3) that frictionally blocks a rotational movement initiated at the output element side and that transmits a rotational movement initiated at the drive element side to the output element (3). Said load moment lock (1) further comprises locking elements (4, 4′) that are disposed in a cylindrical adjustment housing (10).
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: March 9, 2004
    Assignee: Brose Fahrzeugteil GmbH & Co. KG, Coburg
    Inventors: Georg Scheck, Peter Schumann
  • Patent number: 6675945
    Abstract: Disclosed is a seat cushion pumping device for a vehicle. The device comprises a clutch section arranged between a clutch cover and a base member to generate operating force required for adjusting a height of a seat cushion, and a brake section arranged between a brake cover and the base member to conserve operating force of the clutch section. The clutch section includes a pair of clutch blocks, a lever block interposed between the pair of clutch blocks to operate them, and a lever coupled with the lever block and having a lever spring.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: January 13, 2004
    Assignee: Daebu Machinery Co., Ltd.
    Inventor: Jae Ho Kim