Particular Element (e.g., Shift Fork, Template, Etc.) Patents (Class 74/473.36)
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Publication number: 20110138959Abstract: A shift arrangement for a motor vehicle transmission has a multiplicity of gear stages. The shift arrangement has a shift shaft which is aligned in an axial direction and has a multiplicity of shift members which are designed to engage on shift sleeves which can be displaced axially in order to shift the gear stages. The shift shaft is mounted so as to be rotatable in order to select in each case one of the shift sleeves and so as to be axially displaceable in order to shift the gear stages. The shift members have in each case one driver device for coupling to the shift shaft. The shift shaft has a coupling arrangement which is designed to engage, depending on the rotational position of the shift shaft, in each case with a driver device of one of the shift members in order to couple that shift member axially to the shift shaft.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Applicant: GETRAG Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KGInventors: Benjamin Wild, Tobias Lenz, Heiko Imholz, Thomas Marx
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Publication number: 20110126655Abstract: A transmission oil control is provided for a motor vehicle transmission comprises at least one oil line adapted to lubricate a transmission gear assigned to the oil line. The oil line can be opened and/or at least throttled by means of a throttle element. A gearshift element is provided for a gear shift device. The engaged transmission gear can be represented through the gearshift element. The throttle element is connected to the gearshift element in such a manner that for the engaged transmission gear, the associated oil line can be opened and/or that the oil line can at least be throttled for another engaged transmission gear. Since the lubricating oil flow for the transmission gears which are not engaged can be automatically reduced, the total lubricating oil flow can be reduced.Type: ApplicationFiled: October 28, 2010Publication date: June 2, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Eckhard KIRCHNER
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Patent number: 7946190Abstract: A shift rocker arrangement for a transmission including a two-arm bracket shift rocker that extends around a transmission element to be shifted and is supported by pivot bearings on the arms of the bracket within a transmission housing to pivot about an axis located essentially in the plane of the bracket. The shift rocker has bearing elements formed on the bracket arms and complementary bearing shells are formed on the inside wall of the closed housing. The bearing shells that support the bearing elements of the shift rocker are either formed on a bearing bar, which is supported at both ends by the housing, or they are formed directly on inside walls of the housing.Type: GrantFiled: September 26, 2006Date of Patent: May 24, 2011Assignee: ZF Friedrichshafen AGInventor: Gerhard Höring
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Patent number: 7942075Abstract: The gear selector fork comprises a body forming a pair of support plates having respective coaxial through-holes for supporting the fork slidably along a stationary rod of the gearbox, a pair of prongs fixed to the body and forming at their distal ends respective actuating portions able to operate a sliding coupling sleeve of the gearbox, and an actuating nose fixed to the body so as to impart to the fork the sliding movement along the stationary rod for engagement of the desired gear. The body and the prongs are formed so as to allow two forks with identical body and prongs to be mounted on the same stationary rod being superimposed at least partially in the direction of sliding along the stationary rod. The prongs are welded to one of the support plates of the body and extend on the same side as the zone where they are welded to the body, relative to the axis of the through-holes.Type: GrantFiled: October 16, 2008Date of Patent: May 17, 2011Assignee: C.R.F. Societa Consortile Per AzioniInventors: Marco Garabello, Valter Pastorello, Andrea Piazza
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Publication number: 20110100144Abstract: A shift mechanism for a dual clutch transmission employs a rotating barrel cam having at least three tracks which are engaged by and translate at least three associated cam followers. The cam followers extend from shift fork bodies which slide on rails and include shift forks which bi-directionally translate at least three synchronizer clutches which engage at least five forward gears or speeds and reverse. A single electric motor and gear train drive the barrel cam.Type: ApplicationFiled: November 4, 2009Publication date: May 5, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Vijay A. Neelakantan, Bret M. Olson, Jesse B. Bradley, Ajit S. Grewal
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Patent number: 7926373Abstract: A vehicular transmission for an internal combustion engine includes lead grooves disposed on an outer periphery of a shift drum having communication portions connecting a pair of gear train establishment portions extending circumferentially along the shift drum. The communication portions include half neutral portions formed at a center thereof, extending circumferentially along the shift drum. The resulting configuration suppresses an engagement noise to a minimum during changing of a gear position through a sliding motion of a shifter.Type: GrantFiled: September 26, 2007Date of Patent: April 19, 2011Assignee: Honda Motor Co., Ltd.Inventors: Hiroshi Sotani, Kinya Mizuno, Seiji Hamaoka, Eiji Kittaka
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Patent number: 7926382Abstract: There is provided a structure for limiting the rotational range of a manual plate in an automatic transmission, which is capable of making the manual plate shareable among a plurality of types of automatic transmissions differing in the number of gear positions. In the case where the manual plate is applied to a 5-position automatic transmission, the height of a case-side drive range direction stopper that limits the rotational range of the manual plate is set such that an end of a check plate is fitted into five notches ranging from a parking range notch to a low range notch. In the case where the manual plate is applied to a 4-position automatic transmission, the height of a case-side drive range direction stopper that limits the rotational range of the manual plate is set such that the end of the check plate is fitted into four notches ranging from the parking range notch to a drive range notch.Type: GrantFiled: March 16, 2006Date of Patent: April 19, 2011Assignee: Jatco LtdInventor: Shinichi Mochizuki
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Publication number: 20110079101Abstract: An actuating apparatus for actuating a shifting mechanism in a transmission to shift a gear wheel on a hollow shaft with an actuator module that is at least partially positioned within the hollow shaft and which comprises an actuator which can be connected with a coupling element of the shift mechanism which radially, inwardly extends into the inner diameter of the hollow shaft. The enclosure of the actuator module has at least an axially extending assembly passageway which guides the coupling element, during axial insertion of the actuator module into the hollow shaft. A method for the assembly and disassembly of an actuator module, with at least one actuator of an actuating apparatus for inside actuation of a shift mechanism on the hollow shaft. The actuator module is axially inserted into the hollow shaft and rotated via an assembly guide.Type: ApplicationFiled: February 19, 2008Publication date: April 7, 2011Applicant: ZF FRIEDRICHSHAFEN AGInventors: Matthias Reisch, Gerhard Gumpolstberger
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Publication number: 20110061487Abstract: A multiple shift fork, single shift rail assembly reduces weight and complexity in manual and dual clutch transmissions. In a first embodiment, a stationary shift rail includes pluralities of detenting recesses and cooperating detent assemblies are mounted on the shift forks. Associated actuators translate the shift forks and synchronizer clutches. In a second embodiment, the detenting recesses reside on the outside surface of the shift forks and the detent assemblies are mounted in the transmission housing. In a third embodiment, one shift fork is slidably mounted on the shift rail and includes an external detent assembly. The shift rail itself translates and includes detenting recesses and a second shift fork connected thereto.Type: ApplicationFiled: September 15, 2009Publication date: March 17, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Brian E. Tooman, Daryl A. Wilton, Patrick S. Portell, Ryan M. Jenness
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Publication number: 20110048156Abstract: The invention relates to an arrangement for shifting at least one freewheel (1, 2, 3) on an associated shaft of a gear mechanism, comprising at least one shifting device which comprises an actuation device and a non-positive and/or positive shifting device. Said shifting device can be axially displaced by the actuation device that is arranged at least partially in the shaft and the shifting device is arranged coaxially to the shaft. According to the invention, an axial extension can be disposed between the actuation device and the shifting device.Type: ApplicationFiled: February 20, 2009Publication date: March 3, 2011Applicant: ZF FRIEDRICHSHAFEN AGInventor: Matthias Reisch
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Patent number: 7892133Abstract: The present invention includes novel apparatus and methods for engaging and disengaging a locking differential. In an embodiment, an assembly for use with a locking differential is provided. The assembly includes an actuator, a housing, a shaft, a pair of biasing members, a side gear, and a locking pin. The actuator is arranged to move the assembly from a first position to a second position. The housing is coupled to the actuator. The first biasing member biases the housing, and the second biasing member biases the housing and shaft. The side gear includes an aperture for engaging the locking pin. The locking pin is coupled to the shaft such that the biasing of the shaft determines whether the locking pin is biased into engagement with the aperture or out of engagement with the aperture.Type: GrantFiled: March 30, 2007Date of Patent: February 22, 2011Assignee: Metaldyne, LLCInventors: Jeffrey L. Lubben, Ryan McAlister
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Publication number: 20110031085Abstract: The invention relates to an arrangement for coupling at least two freewheels (1, 2) independent of an associated shaft of a gear mechanism, comprising at least one shifting device that comprises an actuation device and a shifting device. Said shifting device can be axially displaced with the actuation device that is arranged at least partially in the shaft.Type: ApplicationFiled: February 20, 2009Publication date: February 10, 2011Inventors: Matthias Reisch, Wolfgang Rieger
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Publication number: 20110023648Abstract: A shift mechanism for a double clutch transmission is provided with a pre-select function that selects any one of a plurality of shift stages of the double clutch transmission and then selects a shift stage in another shift line and an interlock prevention function that prevents shift stages in one shift line from being selected, and allows for quick shift.Type: ApplicationFiled: November 13, 2009Publication date: February 3, 2011Applicant: HYUNDAI MOTOR COMPANYInventors: Jongyop Kim, Sungyong Cho, Hyunduk Chang
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Publication number: 20110023649Abstract: A shifting apparatus for a double clutch transmission may include a plurality of odd-numbered stage driven-shift elements, a plurality of even-numbered stage driven-shift elements, odd-numbered stage driving-shift elements that are provided to selectively move straight any one of the odd-numbered stage driven-shift elements, even-numbered stage driving-shift elements provided to selectively move straight any one of the even-numbered stage driven-shift elements, an odd-numbered stage selecting actuator that supplies the straight motion path to the odd-numbered stage driving-shift elements, an odd-numbered stage shifting actuator that supplies the rotary motion path to the odd-numbered stage driving-shift elements, an even-numbered stage selecting actuator that supplies the straight motion path to the even-numbered stage driving-shift elements, and an even-numbered stage shifting actuator that supplies the rotary motion path to the even-numbered stage driving-shift elements.Type: ApplicationFiled: November 19, 2009Publication date: February 3, 2011Applicant: Hyundai Motor CompanyInventors: Jongyop KIM, Sungyong Cho, Hyunduk Chang
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Publication number: 20110013239Abstract: A transmission mechanism for switching output powers includes first to fourth transmission gears, first and second power-connecting members and a driving mechanism. The first power-connecting member coaxially disposed between the first and second transmission gears is moved axially, and connects the first and second transmission gears together to transmit power to the second transmission gear. The second power-connecting member coaxially disposed between the third and fourth transmission gears is moved axially and connects the third and fourth transmission gears together to transmit power to the fourth transmission gear. The driving mechanism synchronously drives the first and second power-connecting members to move axially to selectively connect the first transmission gear to the second transmission gear, or connect the third transmission gear to the fourth transmission gear. A scanning apparatus using the transmission mechanism is also disclosed.Type: ApplicationFiled: March 24, 2010Publication date: January 20, 2011Inventor: Sung-Po CHENG
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Publication number: 20110005345Abstract: An actuating system for at least first and second coaxially arranged shifting elements of a transmission, in particular, a dual-clutch transmission (1) with at least two coaxially arranged control devices for actuating the associated shifting elements. The control devices comprise at least one rotary drive (4, 5) and at least one control element (6, 7) which are coupled to one another by corresponding gearteeth such that rotational movement, of each rotary drive (4, 5), can be converted into an axial control movement of the associated control element (6, 7). The axial position of the teeth of the geartooth array, of each control element (6, 7), varies in the circumferential direction, at least over a certain range.Type: ApplicationFiled: October 22, 2008Publication date: January 13, 2011Applicant: ZF FRIEDRICHSHAFEN AGInventors: Matthias Reisch, Juergen Wafzig
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Patent number: 7861613Abstract: An embodiment provides a method shifting a multispeed transmission. The multispeed transmission includes multiple gear paths having alternating speed ratios and a plurality of shift members. Each shift member is selectively moveable to engage a speed ratio of the transmission. The method includes directing a shift finger to contact a first shift member, moving the first shift member generally in a first generally orthogonal direction to engage a first gear, and moving the shift finger in a second generally orthogonal direction to an intermediate configuration. The shift finger will not contact a selector rail when moved in the first direction when the shift finger is in the intermediate configuration. The method also includes moving the shift finger generally in the second generally orthogonal direction to a second engaged configuration. The shift finger will contact a second shift member when moved in the first direction when the shift finger is in the second engaged configuration.Type: GrantFiled: April 17, 2007Date of Patent: January 4, 2011Assignee: Eaton CorporationInventor: David John Coxon
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Publication number: 20100326226Abstract: The Auxiliary Gear Box includes an Adapter Gear Housing, and a Transfer Case Adapter. The Adapter Gear Housing includes a Transmission Interface Surface, and a Posterior Surface. The Posterior Surface is in communication with the Transfer Case.Type: ApplicationFiled: June 26, 2009Publication date: December 30, 2010Inventor: Jeff Walston
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Patent number: 7845247Abstract: A shift fork actuation system includes an actuator housing defining a piston cavity and a piston assembly having three pistons with three different surface areas responsive to fluid pressure to establish positions of the piston assembly within the piston cavity. A stopping mechanism, such as a shoulder formed by the actuator housing at the interface of different bores in the piston cavity, interferes with one of the surface areas to prevent movement of one of the pistons past the stopping mechanism. A neutral position of a shift fork is established by interference of the piston assembly with the stopping mechanism. A slot in the piston assembly captures a finger extension from the shift rail to act as an anti-rotation feature, ensuring that a magnet embedded in the piston assembly as part of a sensor assembly is properly positioned.Type: GrantFiled: October 12, 2007Date of Patent: December 7, 2010Assignee: GM Global Technology Operations, Inc.Inventors: David A. Olds, Richard T. Tamba
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Publication number: 20100294070Abstract: A speed change device for shifting the gear of a transmission by using a cylindrical drum that reciprocally moves and rotates, featuring the structure of a compact size and excellent operability. To execute the shifting operation, the speed change device of the invention uses a cylindrical drum 4 that reciprocally moves in the axial direction and is rotatably supported. Fork pins FP1 to FP4 coupled to a plurality of forks of the transmission are fitted into drum grooves 41 to 44 formed in the cylindrical surface of the cylindrical drum. In each drum groove, there are formed small width portions of a width nearly equal to that of the fork pin and large width portions wider than the small width portions in a manner that the fork pin positioned at the small width portion is shifted. To shift the gear, the cylindrical drum 4 is rotated by a select motor 6 to select the fork pin positioned at the small width portion.Type: ApplicationFiled: February 6, 2009Publication date: November 25, 2010Inventors: Kouhei Akashi, Tadashi Ikeda
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Patent number: 7832303Abstract: An automatic transmission includes a gear lever mounted at the interior of a vehicle, a manual control lever connected to the gear lever via a gear cable, a position detecting unit for detecting the position of the manual control lever when a gear-shifting operation is performed, and a position fixing unit disposed between the manual control lever and the position detecting unit for fixing the manual control lever at an assembly reference position. The manual control lever is fixed at the assembly reference position by the position fixing unit. As a result, the manual control lever is not directly fixed to the position detecting unit, and therefore, there is no necessity for moving the position detecting unit. Consequently, interference between the manual control lever and other components is prevented, and the manual control lever is easily assembled.Type: GrantFiled: December 30, 2005Date of Patent: November 16, 2010Assignee: Hyundai Motor CompanyInventor: Hyuk Bin Kwon
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Publication number: 20100275714Abstract: The control device comprises an electric motor, a reduction gear, a shaft operable by the electric motor via the reduction gear, and a drum mounted on the shaft so as to be connected for rotation therewith but free to slide axially relative thereto. The drum has on its cylindrical lateral surface a guide groove in which a plurality of studs are guided, each of the studs being drivingly connected for translation with a respective shift finger in such a manner that the rotary motion of the drum is converted into the translational motion of the shift fingers to control the engagement of the gears according to predetermined modes of operation. The control device further comprises a locking device arranged to lock the translational motion of the drum during the synchronization and gear engagement phases and to unlock the translational motion of the drum upon completion of the engagement of the gear.Type: ApplicationFiled: January 15, 2009Publication date: November 4, 2010Inventors: Kamal Mourad, Guido Panizza, Maurizio Bigi
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Publication number: 20100275716Abstract: The device (10) comprises an electric motor (12), a reduction gear (14), a shaft (16) operable by the motor (12) via the reduction gear (14), and a drum (18) mounted on the shaft (16) so as to be connected for rotation therewith but free to slide axially relative thereto. The drum (18) has on its cylindrical lateral surface a first groove (20) in which first studs (22) drivingly connected for translation each with a respective shift fork (24) are guided, whereby the rotational movement of the drum (18) is converted into a translational movement of the studs (22), and hence of the forks (24), to bring about the engagement of the gears. The drum (18) also has a second groove (40) in which a second, axially stationary stud (42) engages.Type: ApplicationFiled: January 15, 2009Publication date: November 4, 2010Applicants: SILA HOLDING INDUSTRIALE S.P.A., AUTOMAC DI BIGI ING. MAURIZIO S.A.S.Inventors: Kamal Mourad, Guido Panizza, Maurizio Bigi
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Patent number: 7810404Abstract: A synchronizing mechanism includes a synchronizer hub, a coupling sleeve, a clutch gear and a synchronizer ling. The synchronizer hub is fixedly coupled to a rotational shaft. The coupling sleeve is coupled to an outer circumference of the synchronizer hub with a spline engagement to slide with respect to the rotational shaft in an axial direction upon an operation of a shift fork. The clutch gear is rotatably supported on the rotational shaft. The synchronizer ring is configured and arranged to produce a synchronized load between the coupling sleeve and the clutch gear. The coupling sleeve includes a guide section configured and arranged to guide at least a portion of lubricating oil supplied from a shift fork engagement part of the coupling sleeve toward at least one of the clutch gear and the synchronizer ring.Type: GrantFiled: June 18, 2007Date of Patent: October 12, 2010Assignee: Aichi Machine Industry Co., Ltd.Inventor: Hironori Miyagoe
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Publication number: 20100229814Abstract: A vehicle power unit including a speed reducing gear train including a starter driven gear, a starting one-way clutch interposed between the starter driven gear and a crankshaft. The speed reducing gear train and the starting one-way clutch are provided between a starter motor and the crankshaft. A transmission includes gear trains for a plurality of gear speeds wherein the gear trains are provided between a main shaft and a counter shaft. A hybrid type configuration is possible wherein the starter motor produces power for driving the vehicle and to impart a drive assisting force. The starter motor can be changed over between a normal rotational operation and a reverse rotational operation. A power transmission idle gear is interposed between the starter driven gear and a power transmitting gear through a running one-way clutch for permitting power transmission to the side of the main shaft.Type: ApplicationFiled: February 26, 2010Publication date: September 16, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Kenji Matsuo, Masaki Yamazaki
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Publication number: 20100229816Abstract: A speed reducing gear train includes a starter driven gear, a starting one-way clutch interposed between the starter driven gear and a crankshaft for permitting power transmission from the starter driven gear to the side of the crankshaft. The speed reducing gear train and the starting one-way clutch being provided between a starter motor and the crankshaft with a transmission accommodated in a crankcase. The transmission includes gear trains for selectively establishing a plurality of gear speeds with the gear trains being between a main shaft and a counter shaft. The starter motor can produce power for driving the vehicle and to impart a drive assisting force. A power transmitting gear meshing with the starter driven gear is relatively rotatably mounted on the main shaft through a running one-way clutch permitting power transmission from the power transmitting gear to the side of the main shaft.Type: ApplicationFiled: February 24, 2010Publication date: September 16, 2010Inventor: Kenji MATSUO
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Patent number: 7788989Abstract: A selector fork arrangement for a manual transmission in a motor vehicle is suggested that largely comprises a fork body (1) and carrying element (2,3) that connect the fork body (1) to the control rod (9). Fork body (1) and carrying elements (2, 3) are cut entirely from flat metal and are riveted to one another by means of rivet projections (7, 8, 15), which are themselves formed from the flat metal, and complementary rivet openings in the carrying elements (2, 3). This selector fork arrangement satisfies all requirements in terms of strength and functionality, can be produced and assembled in a simple manner, and does not require any adjustment or finishing processes after assembly and prior to installation in the manual transmission.Type: GrantFiled: June 21, 2007Date of Patent: September 7, 2010Assignee: Selzer Fertigungstechnik GmbH & Co. KGInventors: Manfred Keller, Olaf Künkler
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Publication number: 20100218630Abstract: An arrangement structure of a shifting actuator of an internal combustion engine mounted on a motorcycle is provided in which while the shifting actuator is provided externally of an engine case of the engine so as not to interfere with auxiliaries, it is protected without external protrusion and external appearance is kept satisfactory. An external wall of an engine case is partially inwardly recessed to form a recessed portion capable of accommodating a shifting actuator. An actuator body of the shifting actuator is disposed in the recessed portion. An attachment bracket attached to an end portion of the actuator body is fitted to a first fitting hole of an engine case outer lateral wall on the side of the recessed portion and is secured to the engine case outer wall. The motorcycle has a multistage transmission that can reduce its axial width to achieve compactness.Type: ApplicationFiled: January 28, 2010Publication date: September 2, 2010Inventors: Shinya MATSUMOTO, Jun Miyazaki, Hideo Senmyo
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Publication number: 20100218635Abstract: A lubrication structure for a multi-speed transmission has a lubrication structure in which a gear shaft is provided with cam guide grooves in an inner cavity thereof. A lubricating oil is introduced into the inner cavity by way of oil feed introducing holes which are bored in one end portion of the gear shaft so as to provide communication between the inside and the outside of the gear shaft. The lubricating oil is led in the axial direction along the inner peripheral surface of the inner cavity by axial oil feed grooves formed by cutting along the inner peripheral surface of the inner cavity in parallel to the cam guide grooves. The lubricating oil is led out to the engagement switch-over mechanism by radial oil feed holes bored in radial directions so as to communicate with the axial oil feed grooves at axial-direction positions where pin members are located.Type: ApplicationFiled: February 1, 2010Publication date: September 2, 2010Inventors: Shinya MATSUMOTO, Jun Miyazaki, Hideo Senmyo
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Patent number: 7770481Abstract: A shift drum apparatus is reduced in weight relative to conventional shift drums. The shift drum includes a shift fork, a shift drum main body, and a lid member. The shift fork is slidably mounted on a shift fork support shaft. The shift fork changes a gear position of a transmission mechanism. The shift drum main body is formed into a hollow cylindrical shape. The shift drum main body has an end face on a first side thereof in a cylindrical axis direction that is open to form an opening portion. The shift drum main body further includes a cam groove formed on an outer circumferential surface thereof. An end portion of the shift fork is fitted in this cam groove to allow the shift fork to slide. The lid member is disc-shaped and mounted by being press-fitted in the opening portion of the shift drum main body.Type: GrantFiled: March 14, 2007Date of Patent: August 10, 2010Assignee: Honda Motor Co., Ltd.Inventors: Kazuhisa Takemoto, Masafumi Taki
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Patent number: 7757578Abstract: A gear change control system of an automatic transmission, includes: a shift member, including a shaft portion having a selection axis oriented in a selecting direction, and a pair of arm portions formed on the shaft portion and projecting therefrom; shift rail members, having rail shaft portions, and having a shift axis oriented in a shifting direction; shift fork portions, formed on the rail shaft portions; shift lug members, formed on the rail shaft portions and including pillar-shaped portions. The arm portions swing about the selection axis to apply a pressure in the shifting direction from one side of the pillar-shaped portion by one of the arm portions to cause the shift fork portion to make a shifting operation, and to apply a pressure in the shifting direction from the other side of the pillar-shaped portion by the other arm portion to make a shift withdrawing operation.Type: GrantFiled: September 29, 2008Date of Patent: July 20, 2010Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Masanori Shintani, Masashi Fujimoto
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Patent number: 7757580Abstract: An actuating device for vehicle transmissions, in particular of tracked vehicles or wheeled vehicles having a wheel-based steering system, for the remote shifting and emergency shifting of the vehicle transmission is disclosed. The actuating device has a signal transmitter for the driving direction of the vehicle. A single lever is provided for actuating the remote shifting for the driving direction and the emergency shifting and for producing a driving-direction signal.Type: GrantFiled: November 22, 2005Date of Patent: July 20, 2010Assignee: RENK AktiengesellschaftInventor: Max Witzenberger
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Publication number: 20100154577Abstract: A semiautomatic vehicle gearbox comprising, for said gearbox, a shift lever (10) directly coupled to the gearbox itself; a shaft of said gearbox; and connection means between said shift lever and said shaft; characterised by comprising a sensor (20) for sensing the operation of said shift lever coupled to said connection means.Type: ApplicationFiled: January 11, 2007Publication date: June 24, 2010Inventor: Luca Funiciello
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Publication number: 20100147097Abstract: A shift apparatus for a dual clutch transmission includes a plurality of shift lugs and a shift operating module moving the shift lugs. The apparatus provides a simple structure and sufficient rigidity and durability, in addition to a simple shift of a gear. The apparatus further provides an automatic releasing function that automatically releases the prior shift stage and an active inter-lock function that prevents gears connected to the same clutch from being engaged simultaneously, and enables 6-3-stage and 5-2-stage skip shift.Type: ApplicationFiled: November 18, 2009Publication date: June 17, 2010Applicant: HYUNDAI MOBIS CO., LTD.Inventors: YOUNGKWANG KIM, WONBONG CHO, KWANGSOO NAM
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Publication number: 20100132498Abstract: A shift pad for a gear shift element is described, comprising: a pad section that is configured to engage a circular groove of a gear shift sleeve; a locking section for securing the shift pad to the gear shift element; and a locking element that is connected to the locking section in a fixed manner and is adapted to be subjected to plastic deformation for securing the shift pad to the gear shift element. Further, a gear shift element for a gear shift device comprising the above shift pad is described. Detaching of the shift pad from the shift element during the transportation or the assembly process is prevented by this design.Type: ApplicationFiled: November 23, 2009Publication date: June 3, 2010Applicant: GETRAG FORD TRANSMISSIONS GMBHInventor: Ingo Ungerathen
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Publication number: 20100126295Abstract: A method for shifting gears in a transmission. In one embodiment a mechanical transmission gear shifting assembly, for a transmission with multiple gear selectors that, when moved in a back and forth motion, selects different gear ratios. The apparatus uses a cam with a cam follower for moving gear selectors, in response to the same active cam surfaces. The apparatus additionally includes a retractable stop dog, and detents for moving, stopping and holding the cam at all times. The cam moves in increments corresponding to sequentially increasing or decreasing selected gear states of the transmission.Type: ApplicationFiled: November 17, 2009Publication date: May 27, 2010Inventors: Neil H. AKKERMAN, Daniel O. DEWEY
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Publication number: 20100126294Abstract: A shift operation device includes: a shift operation member including: a shaft portion; and an arm portion protruding in a radial direction with respect to a center axis of the shaft portion and being rotated around the center axis to perform shift operation of a gear; and a plurality of shift rail members, each of which includes: a rail portion; a shift fork portion; and a shift lug portion capable of being engaged with the arm portion. An engagement portion of the shift lug portion includes a pair of columnar projections arranged at positions mutually different in the shift direction and the select direction. When the shift lug portion is retained in a neutral position, pressure receiving surfaces of the columnar projections are approximately positioned on a reference orthogonal surface superimposed on the center axis and orthogonal to the rail portion.Type: ApplicationFiled: October 26, 2009Publication date: May 27, 2010Inventor: Masanori SHINTANI
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Publication number: 20100122601Abstract: A vehicle has a shifter assembly for shifting a transmission, and a floor pan. The shifter assembly includes a base and an attachment assembly for adjustably attaching the shifter assembly to the floor pan. The attachment assembly includes a bushing that is adjustable in a horizontal direction relative to the floor pan or a vertical direction relative to the base.Type: ApplicationFiled: November 20, 2008Publication date: May 20, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: ROBERT G VANARSDALE, JR.
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Patent number: 7717010Abstract: The invention relates to a gearbox comprising a shift fork (4) that is displaced by an actuator using a shaft (2), whereby a rotational displacement of said shaft is translated into a displacement of the shift fork. To achieve an accurate displacement with minimum installation space, the gate (14) is configured on a sleeve (13) that is connected to the shift fork unit (4) in a rotationally fixed manner, said sleeve acting on the shift fork unit (4) in the direction of the displacement by means of a spring (24) and the shaft (2) runs through the sleeve (13), said shaft comprising a finger (11) that protrudes radially and co-operates with the gate. The shift fork unit (4) forms a housing (8) that surrounds the sleeve (13) and the spring accumulator (24) and that comprises bearing surfaces (34), by means of which the shift fork unit (4) is guided on the shaft (2) in the direction of the displacement.Type: GrantFiled: January 31, 2005Date of Patent: May 18, 2010Assignee: Magna Powertrain AG & Co KGInventors: Andreas Bär, Günter Weber
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Publication number: 20100108337Abstract: A compliant shifting mechanism can change the operation of a power tool between first and second operating conditions. The shifting mechanism can provide two distinct forces on a gear set during movement of the gear set between the two operating conditions. The shifting mechanism can provide a user with a tactile sensation of the completion of the transition between the two operating conditions without the gear set completing the full transition. A shifting mechanism can automatically complete the change between operating conditions, regardless of an alignment between the gear set and another component. The two distinct forces can be a torsional resistance force and a bending resistance force.Type: ApplicationFiled: October 23, 2009Publication date: May 6, 2010Applicant: BLACK & DECKER INC.Inventors: Joao NORONA, Thomas J. BODINE
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Publication number: 20100101354Abstract: A shifting device for a manual transmission having a shift rocker formed by two rocker arms connected by a rocker bridge, which is arranged over a shift sleeve via two slide-blocks attached to a holder at the end of each rocker arm, which pivots about a transverse axis defined by bearing points. A carrier element is positioned off-center on the rocker bridge to engage with a shifting pin of a shifting shaft. The rocker arm closer to the carrier element has a lower elastic rigidity than the other rocker arm. To produce different spring rigidities, the rocker arm closer to the carrier element has the geometrical form of a spring element which is elastic in the pivoting direction. The, rocker arm farther away from the carrier element is a bracket with relatively greater elastic rigidity.Type: ApplicationFiled: September 29, 2009Publication date: April 29, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventor: Uwe BEER
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Publication number: 20100095797Abstract: An arrangement for actuating at least one shift fork (1) in a transmission of a vehicle. The arrangement has at least one actuating device (3), which is mounted on a shift rail (8), that actuates the shift fork (1) to undergo an at least axially directed shifting movement such that either a one-directional spring deflection of a two-directional spring deflection of the shift fork (1) is provided, and such spring deflected action is provided by at least one bent spring (12).Type: ApplicationFiled: September 24, 2009Publication date: April 22, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventor: Heinz REICHERT
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Publication number: 20100095795Abstract: A transmission includes a case having an internal space; a first partition wall which is provided in the case and forms a boundary between a first chamber which is arranged in the case and houses a rotating object, and a second chamber which is arranged in the case, is connected to the first chamber, and maintains equal pressure between the first chamber and outside air; a second partition wall which is provided in the case and forms a boundary between the second chamber and a third chamber which is arranged in the case and stores fluid below the second chamber; and a third partition wall which is provided in the case and forms a boundary between the first chamber and the third chamber. A first hole and a second hole are formed in that order from the first chamber side in the second partition wall.Type: ApplicationFiled: August 28, 2009Publication date: April 22, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Naoki Kato, Masashi Ikemura, Takeshi Ishiwada, Kazuaki Nakamura, Fuminori Monji, Tadanori Fujii, Tatuya Ishiguro, Hiroyuki Ogasawara, Hiroki Goshima
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Patent number: 7698965Abstract: The invention relates to a transmission device for a motor vehicle comprising a plurality of connecting elements that are mounted in an axially movable manner and are each provided with a shift mouthpiece and comprising an actuating device having a control shaft that is mounted in a swiveling and axially movable manner, on which is provided a main control element and at least one secondary control element, the at least one secondary control element having functional regions for a movement in the same direction as well as functional regions for movement in the opposite direction, the at least one secondary control element extending in its neutral position essentially perpendicular to the direction of movement of the connecting elements, and, with respect to this neutral position on the secondary control element and on at least one shift mouthpiece, the particular functional regions for the movement in the same direction being designed with a bent shape and being axially symmetric to the particular, likewise beType: GrantFiled: July 6, 2005Date of Patent: April 20, 2010Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KGInventors: Matthias Ehrlich, Norbert Esly
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Patent number: 7694605Abstract: A gear change control system of an automatic transmission, include: a shift member, including a shaft portion which is disposed in such a manner that a selection axis thereof is oriented in a selecting direction and including an arm portion; shift fork portions, operable to make gear shifts of gears; shift rail members, connected to the sift fork portions and arranged in such a manner that shift axes thereof are oriented in a shifting direction; and shift lug members, projecting from the shift rail members and including pillar-shaped portions. The arm portion swings about the selection axis to apply a pressure in the shifting direction from one side of the pillar-shaped portion so as to cause the shift fork portion to perform a shift making operation, and to apply a pressure in the shifting direction from the other side of the pillar-shaped portion so as to cause the shift fork portion to perform a shift withdrawing operation.Type: GrantFiled: September 29, 2008Date of Patent: April 13, 2010Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Masashi Fujimoto, Masanori Shintani
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Publication number: 20100077883Abstract: An impact reducing device for a shift lever is provided that enables more safely protecting a driver while effectively reducing impact applied to the driver by a shift lever, by moving the entire shift lever assembly downward while breaking a portion of a bushing by which the shift lever is mounted in a base bracket when impact is applied to the shift lever, a hinge shaft of the shift lever assembly is rotatably fitted and supported in the bushing, which is detachably mounted in the base bracket.Type: ApplicationFiled: August 7, 2009Publication date: April 1, 2010Applicant: Hyundai Motor CompanyInventor: Jaesung Heo
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Publication number: 20100077884Abstract: A vehicle reversing apparatus is configured to reverse a vehicle by a driving force of a starter motor, which starts an internal combustion engine, or by a driving force of the internal combustion engine. The vehicle reversing apparatus can include a reverse drive gear, a reverse gear, a shifter gear, a shifter gear slide mechanism, and lost motion mechanism. The reverse drive gear is configured to rotate by the starter motor or the internal combustion engine and the reverse gear is configured to reverse the vehicle. The shifter gear is configured to be mounted circumferentially rotatably relative to a reverse shaft and to transmit rotation of the reverse drive gear to the reverse gear. The shifter gear slide mechanism is configured to slide the shifter gear through rotation of a shifter motor to enable the shifter gear to engage the reverse drive gear and the reverse gear. The lost motion mechanism is configured to coaxially connect a rotation shaft of the shifter motor and the reverse shaft to each other.Type: ApplicationFiled: September 14, 2009Publication date: April 1, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Kazuhiko ONO, Atsuo OTA
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Publication number: 20100058886Abstract: A transmission shifting device (1) with a selector shaft (2), a disk (7) connected in a rotationally fixed manner to the selector shaft (2), in which a disk-side guide (14) is provided, and a fixed plate (16) arranged opposite the disk (7), in which a plate-side guide (19) is formed. A moving control element (25) is provided for shifting a transmission, which extends into the disk-side and the plate-side guides (14, 19). The disk-side guide (14) extends in the radial direction of the disk (7). A transmission shifting device (1) of this type is particularly compact and takes up only little structural space.Type: ApplicationFiled: June 29, 2007Publication date: March 11, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventor: Ludger RONGE
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Publication number: 20100024586Abstract: A manual transmission, in particular for an automobile, comprises a transmission housing (25), a drive and a driven shaft, which may be coupled to one another in different transmission ratios, a shifter shaft (1), which is rotatable and axially displaceable along predefined paths between positions corresponding to the different transmission ratios of the manual transmission, as well as at least one pair of guide elements (10, 5), which predefine these paths in a cooperating manner. The first (10) of the two guide elements is attached so that it can move with the shifter shaft (1) and the second (5) is attached to a first flange (26) connected to the transmission housing (25). The first flange (26) is fastened detachably to the transmission housing (25) and is connected to the shifter shaft (1) to form a structural unit.Type: ApplicationFiled: June 25, 2007Publication date: February 4, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Olaf Heldmann
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Patent number: 7654170Abstract: A centering spring apparatus in a shift control mechanism includes a plurality of brackets providing stationary ground members for spring members and a shift control lever, which is operable to pick up the springs from the grounded portion to impose a centering force on the shift lever. These springs are disposed such that three different centering forces can be occasioned upon the shifting of the lever from one neutral position toward other neutral positions.Type: GrantFiled: August 26, 2005Date of Patent: February 2, 2010Assignee: GM Global Technology Operations, Inc.Inventor: Scott H. Wittkopp