WO2003025694A1 - Ensemble levier de vitesses - Google Patents

Ensemble levier de vitesses Download PDF

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Publication number
WO2003025694A1
WO2003025694A1 PCT/AU2002/001292 AU0201292W WO03025694A1 WO 2003025694 A1 WO2003025694 A1 WO 2003025694A1 AU 0201292 W AU0201292 W AU 0201292W WO 03025694 A1 WO03025694 A1 WO 03025694A1
Authority
WO
WIPO (PCT)
Prior art keywords
shift lever
base member
relative
plunger
biasing
Prior art date
Application number
PCT/AU2002/001292
Other languages
English (en)
Inventor
Ian John Byles
Haldum Halim Olguner
Neil Murray Williams
Original Assignee
Mtm Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mtm Pty Ltd filed Critical Mtm Pty Ltd
Publication of WO2003025694A1 publication Critical patent/WO2003025694A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0204—Selector apparatus for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H2059/0239—Up- and down-shift or range or mode selection by repeated movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
    • F16H2059/0282—Lever handles with lock mechanisms, e.g. for allowing selection of reverse gear or releasing lever from park position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H2059/0295—Selector apparatus with mechanisms to return lever to neutral or datum position, e.g. by return springs

Definitions

  • the present invention relates to a shift lever assembly for a vehicle automatic transmission.
  • the present invention particularly relates to a shift lever assembly for a vehicle through which a driver can select an automatic shift mode and a manual shift mode and is herein described in that context.
  • a driver can select an automatic shift mode and a manual shift mode and is herein described in that context.
  • the invention has broader application and is not limited to that particular use.
  • Shift lever assemblies of the type mentioned in the previous paragraph generally include two shift lever shifting paths.
  • the first shifting path is provided for the automatic shift mode, allowing for the pre-selection of any one of, for example, a park (P) position, a reverse (R) position, a neutral (N) position, and at least one drive range (D) position.
  • the second shifting path is provided for the manual shift mode, and includes three positions in which the shift lever can adopt a neutral (or centre) position, an up-shift position and a down-shift position.
  • the shift lever In the second shifting path (for the manual shift mode), the shift lever is shifted to the up-shift position from the neutral position to shift one gear up in the vehicle automatic transmission. Similarly, the shift lever is shifted from the neutral position to the down-shift position to shift one gear down.
  • the first and second shifting paths are generally arranged adjacent and parallel to one another.
  • a changeover path generally connects the first and second shifting paths to one another.
  • a means for biasing a shift lever relative to a base member of a shift lever assembly The shift lever is pivotally mounted to the base member via a shift lever pivot shaft.
  • the biasing means is capable of mounting on the shift lever.
  • a shift lever assembly includes a base member, and a shift lever.
  • the shift lever includes a pivot shaft, which is pivotally mounted to the base member.
  • the shift lever assembly includes a means for biasing the shift lever relative to the base member, wherein the biasing means is mounted on the shift lever.
  • the biasing means enables the shift lever to be moved (in the manual transmission mode) by an operator from an initial position to either a fore or aft position relative to the base member, whereupon the biasing means biases the shift lever towards its initial position.
  • the biasing means includes a torsion spring (or coiled spring), which is connected to the shift lever.
  • the torsion spring is self-retaining on the shift lever. This can be achieved by providing a lug on the shift lever for mounting the torsion spring, and by dimensioning the coils of the torsion spring appropriately relative to the lug, such that the torsion spring rigidly secures itself to (or around) the lug. This is advantageous because it obviates the need for a separate fastener to retain the biasing means on the shift lever, thereby reducing the overall number of assembly components.
  • the torsion spring includes at least one, and preferably two, biasing arm(s) to bias the shift lever relative to the base member, in a desired form, the arms are in the form of the straightened end(s) of the torsion spring.
  • the biasing arm(s) contacts a biasing surface provided on the base member.
  • pivot shaft mounted to the shift lever. It is to be appreciated that, in an alternative configuration, the pivot shaft could be mounted to the base member and a pivot shaft housing could be provided on the shift lever. In such an arrangement pivoting of the shift lever would cause the pivot shaft housing to rotate about the stationary pivot shaft.
  • a detent means for a shift lever assembly includes a base member and a shift lever.
  • the shift lever is pivotally mounted to the base member.
  • the detent means is provided for connecting to the base member and is contoured for at least partially defining a shift lever initial (or neutral) position.
  • a shift lever assembly including a base member and a shift lever.
  • the shift lever is pivotally mounted to the base member and can be moved by an operator from an initial position to at least one further position relative to the base member.
  • the assembly includes a detent means.
  • the detent means is connected to the base member and is contoured for at least partially defining the shift lever initial position. It is to be appreciated that the detent means could also define at least one further shift lever position.
  • the detent means could be integrally connected to the base member. This would reduce the number of separate assembly components, thereby reducing assembly time.
  • the detent means is resilient.
  • the detent means includes a leaf spring which biases the shift lever into the initial (or neutral) position.
  • the detent means also enables the shift lever to move from the initial position to a fore position and an aft position. Furthermore, the detent means preferably provides a biasing force to the shift lever when the shift lever is moved by an operator from the initial position, such that the shift lever is biased towards the initial position.
  • an actuation means for pivotally attaching to a shift lever of a shift lever assembly.
  • the shift lever includes a handle end and a pivot end.
  • the actuation means is provided for pivotally connecting to the handle end of the shift lever.
  • a plunger is provided for supporting on the lever for limited axial travel thereon.
  • a resilient means is provided for biasing the plunger axially toward the pivot end. The actuation means enables an operator to move the plunger axially toward the handle end.
  • a shift lever for a shift lever assembly.
  • the shift lever includes a handle end and a pivot end.
  • a plunger is supported on the lever for limited axial travel thereon.
  • a resilient means biases the plunger axially toward the pivot end.
  • the plunger includes an actuation means pivotally attached to the handle end of the lever. Actuation of the actuation means by an operator moves the plunger axially toward the handle end.
  • the shift lever is in the form of hollow tubular member, and the plunger is provided in the axial bore of the hollow shift lever.
  • the actuation means includes a button, which is pivotally connected to an operator handle provided on the handle end of the shift lever.
  • the button preferably has a cam profile that directly acts upon the plunger.
  • the actuation means includes a spring, which is mounted around the plunger either in the handle or hollow shift lever.
  • An actuation means of the form contemplated above is desirable because it generally provides a reduction in the number of shift lever components required when compared to existing shift levers.
  • actuation means could instead enable an operator to move the plunger axially toward the pivot end of the shift lever, if desired.
  • an actuation means for pivotally attaching to a shift lever of a shift lever assembly.
  • the shift lever includes a handle end and a pivot end.
  • the actuation means is provided for pivotally connecting to the handle end of the shift lever.
  • a plunger is provided for supporting on the lever for limited axial travel thereon.
  • a resilient means is provided for biasing the plunger axially toward the handle end.
  • the actuation means enables an operator to move the plunger axially toward the pivot end.
  • a shift lever for a shift lever assembly The shift lever includes a handle end and a pivot end.
  • a plunger is supported on the lever for limited axial travel thereon.
  • a resilient means biases the plunger axially toward the handle end.
  • the plunger includes an actuation means pivotally attached to the handle end of the lever. Actuation of the actuation means by an operator moves the plunger axially toward the pivot end.
  • gear selection indicator means for a shift lever assembly.
  • the gear selection indicator means includes a selection indicator, which is movable relative to a base member of the shift lever assembly, and an indicator actuator which is connected to a shift lever of the shift lever assembly.
  • the shift lever is pivotally mounted to the base member.
  • An actuator receiving means is connected to and extends downwardly from the- selection indicator.
  • the indicator actuator is located such that it is received by the actuator receiving means. Movement of the shift lever relative to the base member causes the indicator actuator to bias the actuator receiving means, thereby causing the selection indicator to move.
  • a shift lever assembly includes a shift lever and a base member.
  • the shift lever is pivotally mounted to the base member.
  • a gear selection indicator means is provided.
  • the gear selection indicator means includes a selection indicator, which is movable relative to the base member, and an indicator actuator connected to the shift lever.
  • An actuator receiving means is connected to and extends downwardly from the selection indicator.
  • the indicator actuator is received by the actuator receiving means. Movement of the shift lever relative to the base member causes the indicator actuator to bias the actuator receiving means, thereby moving the selection indicator.
  • the actuator receiving means is in the form of one, or more preferably two, downwardly extending arms.
  • the error in the movement of the selection indicator in accordance with the present invention is desirably reduced, when compared to existing arrangements, which generally include an indicator actuator having two upwardly extending arms, between which is received a downwardly extending actuator arm.
  • the stationary indicator cover which has a slightly curved surface
  • the stationary indicator cover has (for most applications) a greater radius than the radius of the shift lever (about the lever pivot shaft) at the corresponding height. Therefore, the inclusion of two downwardly extending arms ensures that the actuating means slidably engages the actuator, such that the engagement point (between the arms and the actuator) traces a line of constant offset distance from the lever pivot shaft.
  • the base member includes an indicator cover including a selection indicator guide path, enabling an operator to readily ascertain which gear has been selected. - - — - • -- • ⁇ • - " -
  • the stationary indicator cover is vertically adjustable relative to the base member, thereby allowing for the varying base member mounting heights encountered during installation of shift lever assemblies in vehicles. This enables the stationary indicator cover to be mounted at the desired height relative to the other components of the vehicle interior, irrespective of variations encountered in the vertical height of the base member relative to the other components of the vehicle interior.
  • Figure 1 is a perspective view of a shift lever assembly according to an embodiment of this invention.
  • Figure 2 is another perspective view of the assembly illustrated in Figure 1.
  • Figure 3 is a perspective view of the shift lever assembly shown in Figure 1 when in a partially disassembled state.
  • Figure 4 is another perspective view of the assembly illustrated in Figure
  • Figure 5 is a magnified perspective view of a portion of the assembly when viewed from the direction illustrated in Figures 1 and 3.
  • Figure 6 is a magnified perspective view of a portion of the assembly when viewed from the direction illustrated in Figures 2 and 4.
  • Figure 7 is a magnified perspective view of a portion of the assembly illustrated in Figure 3.
  • Figure 8 is a magnified perspective view of the assembly portion illustrated in Figures 3 and 7.
  • Figures 9, 10 and 11 are side sectional views of the shift lever of the assembly illustrated in Figure 1
  • Figure 12 is another magnified perspective view of a portion of the assembly illustrated in Figure 1.
  • the shift lever assembly 10 includes a shift lever 12 and a base member 14.
  • the base member 14 is secured to the floor (not illustrated) of a vehicle (not illustrated) by fasteners 16 inserted through mounting holes (not clearly illustrated).
  • a cable actuating portion 13 is connected to the shift lever 12.
  • the actual cable connected to the cable actuating portion 13 has been omitted from the drawings.
  • the shift lever 12 is pivotally movable relative to the base member 14 by way of a first pivot shaft 18 and a second pivot shaft 19 (see Figure 3).
  • the first pivot shaft 18 extends in the transverse direction of the vehicle and permits movement of the shift lever 12 in the longitudinal direction of the vehicle along either a shifting channel 24 for the automatic shift mode, or a shifting channel 26 for the manual transmission mode.
  • the second pivot shaft 19 extends in the longitudinal direction of the vehicle. This enables the shift lever 12 to pivot in the transverse direction of the vehicle in the transverse channel 22, from the shifting channel 24, to the shifting channel 26.
  • the channels 22,24,26 are as defined in the cover plate 28.
  • the cover plate 28 is mounted to the base member 14.
  • the shift lever 12 extends upwardly through the aperture created in the cover plate 28 by the channels 22,24,26.
  • the shift lever 12 is situated in the shifting channel 24 when it is desired to preselect the driving positions.
  • each of the driving positions the park (P) position, the reverse (R) position, the neutral (N) position, and the drive (D) position are transmitted to the automatic transmission (not illustrated) and are engaged successively.
  • shift lever 12 When the shift lever 12 is in the shifting channel 26 (the manual mode), shifting of the shift lever in the driving direction of the vehicle causes an up-shift by one gear in the automatic transmission. Subsequently, the shift lever 12 is set back into the neutral position of the shifting channel 26 by a biasing means 29, which includes a torsion spring 30.
  • the torsion spring 30 is described in greater detail below with regard to Figure 5.
  • Shifting of the shift lever 12 in a direction opposite to the vehicle driving position (and when in the shifting channel 26) causes a down-shift by one gear of the automatic transmission, whereupon the action of the torsion spring 30 again returns the shift lever 12 to the neutral position.
  • the torsion spring 30 is fitted about a lug 20.
  • the lug 20 is integrally connected to the shift lever 12.
  • the coils 32 of the torsion spring 30 provide an interference fit with the lug 20 of the shift lever 12, such that the torsion spring 30 is self-retaining on the lug 20, and hence on the lever 12. This is desirable because it eliminates the need for a separate fastener to secure the torsion spring 30 to the shift lever 12.
  • the torsion spring 30 includes a pair of actuating arms 34,36. When in the manual transmission mode (with the shift lever 12 in the shifting channel 26), the actuating arms 34,36 bias against a support 37, which is rigidly mounted to the base member 14. The actuating arms 34,36 are restrained by a stop 38 integrally formed on the shift lever 12.
  • the actuating arms 34,36 are located on either side of the support 37. In this position, when an operator up-shifts the shift lever 12 in the channel 26, the shift lever 12 is rotated from the neutral position in the counter-clockwise direction (in the illustration shown). This biases the biasing arm 34 against the support 37, causing the biasing arm 34 to deform slightly.
  • the biasing arm 34 is resilient, such that once the operator has up-shifted the shift lever 12, the biasing arm 34 will rotate the shift lever 12 in the clockwise direction back to the neutral position.
  • the actuating arm 36 acts in a similar manner to the actuating arm 34 when an operator down-shifts the shift lever 12 in the channel 26, causing a clockwise rotation of the shift lever 12.
  • a rib 39 is provided on the lug 20 of the shift lever 12. The rib 39 further assists in retaining the torsion spring 30 on the shift lever 12.
  • the channel 26 is at least partially defined by a detent means 40 into the neutral (or initial) position 42, and two further positions: the up-shift position 44, and the down-shift position 46.
  • the detent means 40 is in the form of a leaf spring.
  • the leaf spring is an integral part of a component 41 connected to the base member 14.
  • the leaf spring is integrally connected to the component 41 at connection points 48,50.
  • the component 41 is snap-fitted to the base member 14. It is to be appreciated, however, that the component 41 could be connected to the base member 14 by any other suitable means including, for example, by screw threaded fasteners.
  • the detent means 40 contacts the shift lever 12 when the shift lever 12 is in the channel 26.
  • the detent means 40 assists the operator during shifting of the shift lever 12 in the channel 26, because it provides a positive feel when up- shifting or down-shifting the shift lever 12.
  • the detent means 40 is biased against the shift lever 12 in each of the neutral 42, up-shift 44 and down-shift 46 positions to also provide the operator with a solid (or robust) feel to the shift lever 12 when in the channel 26.
  • the detent means 40 also provides a safety aspect in the unlikely event of failure to the aforementioned biasing means 29.
  • the biasing means 29 (including torsion spring 30) retains the shift lever 12 in the neutral position 42.
  • the detent means 40 retains the shift lever in the neutral position 42, thereby preventing the unwanted passive up-shifting or down-shifting of the shift lever 12.
  • the component 41 is made of a polymer such as poly-acetyl. This material provides the desirable qualities of low friction, anti-wear, anti-shock and lasting leaf spring resilience. Another advantage of using a detent means 40 of the form illustrated, is that it is integrally connected to the component 41 , which is snap-fitted to the base member 14. Thus, the overall number of assembly 10 components is thereby minimised.
  • the shift lever 12 includes a handle end 52 and a pivot end 54.
  • An operator handle 56 is provided on the handle end 52 of the shift lever 12.
  • the shift lever 12 includes a hollow shaft 58.
  • a plunger 60 extends longitudinally through the shaft 58.
  • the plunger 60 has a cruciform cross- sectional shape.
  • Figures 10 and 11 are of a slightly different section compared to Figure 9, thereby accounting for the different appearance of the plunger 60.
  • a means for actuating theplunger 60 is provided in the form of a button 62.
  • the button 62 is provided at (and contacts) the upper end of the plunger 60.
  • the button 62 is pivotally connected to the handle 56 about a pivot axis 64 via connection apertures 66 provided in the button mounting bracket 67. Actuation of the button 62 is necessary when operating in the automatic mode (with the shift lever in channel 24), in order to move the shift lever 12 between the park (P), reverse (R), neutral (N), and drive (D) positions.
  • an operator actuates the plunger 60 by squeezing the button 62/handle 56 combination.
  • This causes the button 62 to rotate in the clockwise position about the pivot axis 64.
  • the button 62 contacts the sloping surface 74 of the plunger 60.
  • Depressing the button 62 causes the plunger 60 (by way of the sloping surface 74) to move axially upwards, thereby enabling the shift lever 12 to unlock and move between the park (P), reverse (R), neutral (N), and drive (D) positions.
  • a compression spring 68 extends between the button 62 and the handle 56 to return the button 62 to the position illustrated, upon removal of the operator actuation force.
  • the compression spring 68 also takes up any free play between the button 62 and the plunger 60.
  • a compression spring 70 is provided for biasing the plunger 60 axially downwards.
  • One particular advantage of the illustrated actuation means is that it provides a reduction in the number of shift lever 12 components when compared to existing shift levers.
  • a gear selection indicator means is illustrated in Figures 3, 7, 8 and 12.
  • the gear selection indicator means includes an indicator actuator in the form of an upstanding pin 82.
  • the upstanding pin 82 is connected to the shift lever 12, such that movement of the shift lever 12 causes a corresponding movement of the upstanding pin 82.
  • the rounded end 84 of upstanding pin 82 is received by an actuator receiving means in the form of two downwardly extending (at least approximately) parallel arms 86,88.
  • the arms 86,88 are connected to a selection indicator (not visible).
  • the selection indicator is slidably mounted to the underside- of the cover plate 28 in the longitudinal direction of the vehicle, immediately below an indicator cover 90.
  • the indicator cover 90 includes transparent park (P), reverse (R), neutral (N), and drive (D) position indicators, which are integrated into the surface of the cover plate 28.
  • the selection indicator is visible to an operator through the transparent position indicators in the indicator cover 90.
  • the gear selection indicator means provides the operator with a visible indication as to which gear the automatic transmission of the vehicle is in when operating in the automatic transmission mode.
  • the cover plate 28 is vertically adjustable relative to the base member 14.
  • the gear selection indicator means is able to accommodate variations in base member 14 mounting height. This is because the downwardly extending arms 86,88 can accommodate the end 84 of the pin 82 at any position along their length, without affecting the ability of the indicator means 80 to function satisfactorily.
  • the above described shift lever assembly 10 provides a simplified construction, including a reduction in the number of components, when compared to a number of existing assemblies.
  • the present invention also provides a shift lever assembly 10 of lower production cost when compared to a number of existing assemblies.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

L'invention concerne un ensemble (10) levier de vitesses, comprenant un élément de base (14), et un levier de vitesses (12). Ledit levier de vitesses (12) est monté pivotant sur l'élément de base (14). Ledit ensemble (10) comprend un moyen de sollicitation (29) qui permet de solliciter le levier de vitesses (12) par rapport à l'élément de base (14). Le moyen de sollicitation (29) est monté sur le levier de vitesses (12).
PCT/AU2002/001292 2001-09-20 2002-09-20 Ensemble levier de vitesses WO2003025694A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR7823 2001-09-20
AUPR7823A AUPR782301A0 (en) 2001-09-20 2001-09-20 A shift lever assembly

Publications (1)

Publication Number Publication Date
WO2003025694A1 true WO2003025694A1 (fr) 2003-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2002/001292 WO2003025694A1 (fr) 2001-09-20 2002-09-20 Ensemble levier de vitesses

Country Status (2)

Country Link
AU (1) AUPR782301A0 (fr)
WO (1) WO2003025694A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140033849A1 (en) * 2012-08-02 2014-02-06 Kabushiki Kaisha Tokai Rika Denki Seisakusho Shift device
CN106286795A (zh) * 2015-06-29 2017-01-04 长城汽车股份有限公司 Amt自动换挡器以及具有其的汽车
US20200139538A1 (en) * 2018-11-05 2020-05-07 Board Of Regents, The University Of Texas System Mechanically Over-Damped Actuators Having Adjustable Stiffness

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07323744A (ja) * 1994-06-02 1995-12-12 Yanmar Agricult Equip Co Ltd 管理作業機の指操作式変速レバー
JPH08121579A (ja) * 1994-10-26 1996-05-14 Keihin Seimitsu Kogyo Kk 変速操作レバー
US5802922A (en) * 1995-07-05 1998-09-08 Tsuda Kogyo Kabushiki Kaisha Shift lever supporting mechanism for a manual transmission
JP2000016108A (ja) * 1998-06-29 2000-01-18 Aisin Ai Co Ltd シフトレバーの位置決め機構

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07323744A (ja) * 1994-06-02 1995-12-12 Yanmar Agricult Equip Co Ltd 管理作業機の指操作式変速レバー
JPH08121579A (ja) * 1994-10-26 1996-05-14 Keihin Seimitsu Kogyo Kk 変速操作レバー
US5802922A (en) * 1995-07-05 1998-09-08 Tsuda Kogyo Kabushiki Kaisha Shift lever supporting mechanism for a manual transmission
JP2000016108A (ja) * 1998-06-29 2000-01-18 Aisin Ai Co Ltd シフトレバーの位置決め機構

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; Class Q13, AN 1996-108982/12 *
DATABASE WPI Derwent World Patents Index; Class Q13, AN 2000-155888/14 *
DATABASE WPI Derwent World Patents Index; Class Q64, AN 1996-284972/29 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140033849A1 (en) * 2012-08-02 2014-02-06 Kabushiki Kaisha Tokai Rika Denki Seisakusho Shift device
CN106286795A (zh) * 2015-06-29 2017-01-04 长城汽车股份有限公司 Amt自动换挡器以及具有其的汽车
US20200139538A1 (en) * 2018-11-05 2020-05-07 Board Of Regents, The University Of Texas System Mechanically Over-Damped Actuators Having Adjustable Stiffness
US11911897B2 (en) * 2018-11-05 2024-02-27 Board Of Regents, The University Of Texas System Mechanically over-damped actuators having adjustable stiffness

Also Published As

Publication number Publication date
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