WO2018172639A1 - Position return device for a rotary selection component, gearbox internal control mechanism and gearbox - Google Patents
Position return device for a rotary selection component, gearbox internal control mechanism and gearbox Download PDFInfo
- Publication number
- WO2018172639A1 WO2018172639A1 PCT/FR2018/050189 FR2018050189W WO2018172639A1 WO 2018172639 A1 WO2018172639 A1 WO 2018172639A1 FR 2018050189 W FR2018050189 W FR 2018050189W WO 2018172639 A1 WO2018172639 A1 WO 2018172639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- selection
- gearbox
- return device
- cam
- cartridge
- Prior art date
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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/38—Detents
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
- F16H2061/185—Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear
Definitions
- the present invention relates to the field of gearboxes with parallel shafts, and their internal control. It relates in particular to the return means of a rotary member for selecting the speed lines, towards a reference position.
- this invention relates to a return device in position of a vehicle gearbox speed line selection member, moved in rotation between two reference functional positions by a selection actuator.
- This device comprises a resilient member compressed during the movement of the selection member, between a first and a second reference position.
- the invention also relates to an internal control mechanism comprising such a return device, and a gearbox provided with this mechanism.
- This invention finds a preferred application, but not limited to robotically controlled gearboxes, in which the movements of the internal selection and passage control members are controlled by controlled actuators.
- the internal speed control is "horizontal”, which means that an internal control member having a control shaft moves in rotation around a horizontal geometric axis, to select the speed lines.
- a movable member, carried by this axis, moves in translation to drive a gear engagement fork, on the selected gear line.
- Publication FR 3,026,808 discloses an internal control device for a gearbox in which manual control, horizontal control axis, for selecting one or the other of two lines of speeds.
- a return spring in selection, of the torsion spring type, ensures the return of the control in the neutral position.
- the selection movement can for example be ensured by an electromagnet rotating a selection member: if the electromagnet is switched on, the control is subjected to the selection movement. This movement generally overcomes the effort of maintaining a torsion spring; when the electromagnet is released, the control is returned to the rest position by the spring; the selection member joins the neutral line.
- the actuation force imposed by the actuators is generally much less important (approximately 10 times less) than that of the driver on his lever, because the effort of the driver between the pommel and the internal organ selection is multiplied.
- the force provided by a return spring robotized selection box is less, compared to the manual boxes: the return springs used for this reason, a wire diameter and a number of very small turns, the manufacture is more restrictive.
- the present invention aims to ensure the elastic return in the neutral position of a selection member of internal control mechanism, by a device adapted to controlled actuators.
- the elastic member used is a billing cartridge, which cooperates with a cam of the selection member, to compress during the movement of the selection member from a first to a second position and to recall in relaxation, the selection member from the second to the first position, when the actuator is put to rest.
- the reference positions of the selection member are defined by two fixed stops, limiting its movement in rotation.
- the first and second positions of the selection member are gear line selection positions.
- FIGS. 1A to 1D are schematic diagrams of a first selection return device
- FIGS. 2A and 2B illustrate the proposed device
- FIGS. 3A and 3B are detailed diagrams of the blasting cartridge
- Figure 4 shows the interlocking key in two positions
- FIGS. 5A to 5C detail its first position
- FIGS 6A-6C detail its second position.
- FIGS. 1A and 1B show a first internal control mechanism, comprising a selection member 1 of a speed line, such as an interlocking key 1, ensuring the selection of a line of speeds, while prohibiting 1 'actuation of the or line (s) not selected (s).
- Key 1 is mounted on a control shaft (not shown). It is shown in neutral position. Maintaining this position is provided by a torsion spring 2, thanks to the holding pin 3 integral with the housing of the box (not shown), and a retaining tab 1a on the key 1.
- FIG. 2A and 2B there is an interlocking key 1, which performs the same function of selecting two speed lines as previously, by rotating about the axis XX '.
- the interlocking key 1 is rotated between two reference functional positions by a selection actuator, not shown.
- the device comprises an elastic member 5 compressed during the displacement of the selection member between a first and a second reference position. Instead of the spring, the elastic member is a blasting cartridge 5, integral with the housing.
- the cartridge 5 cooperates with a cam 1 of the key 1. It compresses when the selection member moves from the first to the second position. It recalls the selection member to the first position, during the rest of the 1 actuator.
- the cam is disposed on the arm lb of the key 1, vis-à-vis the ball 5b of the cartridge 5.
- a second fixed stop is added on the other side of the arm lb.
- the reference positions of the selection member are defined by these two fixed stops. Each of the two functional positions of the selection member selects a speed line.
- FIGS 3A and 3B show the detail of the blasting cartridge 5, and its interface with the cam.
- the blasting cartridge 5 comprises a fixed cartridge body 5a, with respect to the gearbox. She encloses a spring 5c, which pushes the ball 5b against the cam 1 of the key 1.
- the cartridge is in a "rest" position, corresponding to the first gear line: the spring 5c is released, the ball 5b is vis-à-vis the low position of the cam.
- the second velocity line is selected: the key 1 has been actuated to effect a rotational movement about the axis XX ', placing the ball 5b opposite the upper position of the cam the.
- the spring 5c is compressed in the body of the cartridge 5.
- Figure 4 is a side view of the interlocking key 1 superimposing the two positions.
- the arm lb bears on the first stop 4a. It is held in this position by the blasting cartridge 5, exerting its force on the cam.
- the key 1 was rotated by the actuator until its arm lb comes into contact with the second stop 4b.
- the cam pushes the ball 5b, which compresses the spring 5c in the body 5a of the cartridge 5.
- the spring 5c pushes the ball 5b in the body 5a.
- the cam carries the key 1 in front of the first selection line.
- FIGS. 5A and 6A show the profile of the cam: it offers the cartridge an inclined support surface, each end of which defines a low position, where the spring is not compressed (FIG. 5A), and a high position, where the spring is compressed ( Figure 6A).
- Figures 5A to 6C illustrate the operation of the device.
- the arm lb of the key 1 abuts against one or other of the fixed stops 4a, 4b, when the cartridge joins the ends of the cam.
- the interlocking key is in the first selection position (first gear line): its arm 1b is held in abutment on the first stop 4a, by the thrust of the ball 5b on the cam, under the spring force 5c.
- the key 1 is in the second selection position. It has moved in rotation to the second stop 4b. The cam pushes the ball 5b to compress the spring 5c. As soon as the actuator no longer holds the key 1 against the stop 4b, the spring removes the key. It returns to the first selection position, FIGS. 5A, 5B, 5C.
- the proposed internal control mechanism comprises a position return device, comprising a rotary selection member with at least two functional positions for selection of a speed line.
- the selection member moves in rotation about a horizontal axis, to select one or the other of these two lines of speeds.
- the invention also relates to a gearbox, preferably robotized, comprising such a control mechanism.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201880020320.XA CN110506172B (en) | 2017-03-24 | 2018-01-29 | Position return device for a rotary selector element, gearbox internal control mechanism and gearbox |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1752462 | 2017-03-24 | ||
FR1752462A FR3064327B1 (en) | 2017-03-24 | 2017-03-24 | RETURN-IN-POSITION DEVICE FOR A ROTARY SELECTION MECHANISM, INTERNAL GEARBOX CONTROL MECHANISM AND GEARBOX |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018172639A1 true WO2018172639A1 (en) | 2018-09-27 |
Family
ID=59409423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2018/050189 WO2018172639A1 (en) | 2017-03-24 | 2018-01-29 | Position return device for a rotary selection component, gearbox internal control mechanism and gearbox |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN110506172B (en) |
FR (1) | FR3064327B1 (en) |
WO (1) | WO2018172639A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111649127A (en) * | 2020-05-28 | 2020-09-11 | 宝鸡法士特齿轮有限责任公司 | Locking device and locking method for overdrive and reverse gear |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3939724A (en) * | 1973-11-19 | 1976-02-24 | Toyota Jidosha Kogyo Kabushiki Kaisha | Automotive vehicle shift control mechanism for manual transmissions |
EP0222761A1 (en) * | 1984-07-26 | 1987-05-27 | Zahnradfabrik Friedrichshafen | Gear shifting device. |
FR2817316A1 (en) * | 2000-11-30 | 2002-05-31 | Schaeffler Waelzlager Ohg | Selector and shift control for motor vehicle gearbox has pivot arm with pivot axis carried in rollers for longitudinal movement |
FR2927684A3 (en) * | 2008-02-20 | 2009-08-21 | Renault Sas | Reverse internal locking device for six forward gear ratios manual gearbox of vehicle, has actuator displacing hook to retracted position authorizing access of key, where hook pivots around axle fixed with respect to casing of gearbox |
FR3024197A1 (en) * | 2014-07-24 | 2016-01-29 | Renault Sas | MANUAL GEARBOX CONTROL OF A MOTOR VEHICLE |
FR3026808A1 (en) | 2014-10-06 | 2016-04-08 | Renault Sa | INTERNAL GEARBOX CONTROL DEVICE WITH INTEGRATED PASSAGE ASSIST |
FR3037116A1 (en) * | 2015-06-05 | 2016-12-09 | Peugeot Citroen Automobiles Sa | MANUAL TRANSMISSION OF A VEHICLE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6966237B2 (en) * | 2001-04-02 | 2005-11-22 | Zf Meritor, Llc | First gear/reverse gate indicator switch |
CN201925460U (en) * | 2010-12-21 | 2011-08-10 | 杭州依维柯汽车变速器有限公司 | V-shaped double-wedge inclined shift returning mechanism for transmission |
CN203098824U (en) * | 2013-01-31 | 2013-07-31 | 长城汽车股份有限公司 | Gear selecting force sensing device with mistakenly-changing-to-back-gear-resistant function |
FR3024196B1 (en) * | 2014-07-24 | 2018-07-06 | Renault Sas | MANUAL GEARBOX CONTROL OF A MOTOR VEHICLE |
-
2017
- 2017-03-24 FR FR1752462A patent/FR3064327B1/en active Active
-
2018
- 2018-01-29 WO PCT/FR2018/050189 patent/WO2018172639A1/en active Application Filing
- 2018-01-29 CN CN201880020320.XA patent/CN110506172B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3939724A (en) * | 1973-11-19 | 1976-02-24 | Toyota Jidosha Kogyo Kabushiki Kaisha | Automotive vehicle shift control mechanism for manual transmissions |
EP0222761A1 (en) * | 1984-07-26 | 1987-05-27 | Zahnradfabrik Friedrichshafen | Gear shifting device. |
FR2817316A1 (en) * | 2000-11-30 | 2002-05-31 | Schaeffler Waelzlager Ohg | Selector and shift control for motor vehicle gearbox has pivot arm with pivot axis carried in rollers for longitudinal movement |
FR2927684A3 (en) * | 2008-02-20 | 2009-08-21 | Renault Sas | Reverse internal locking device for six forward gear ratios manual gearbox of vehicle, has actuator displacing hook to retracted position authorizing access of key, where hook pivots around axle fixed with respect to casing of gearbox |
FR3024197A1 (en) * | 2014-07-24 | 2016-01-29 | Renault Sas | MANUAL GEARBOX CONTROL OF A MOTOR VEHICLE |
FR3026808A1 (en) | 2014-10-06 | 2016-04-08 | Renault Sa | INTERNAL GEARBOX CONTROL DEVICE WITH INTEGRATED PASSAGE ASSIST |
EP3006786A1 (en) * | 2014-10-06 | 2016-04-13 | Renault S.A.S. | Internal gear box control device with integrated shifting assistance |
FR3037116A1 (en) * | 2015-06-05 | 2016-12-09 | Peugeot Citroen Automobiles Sa | MANUAL TRANSMISSION OF A VEHICLE |
Also Published As
Publication number | Publication date |
---|---|
FR3064327B1 (en) | 2022-02-11 |
FR3064327A1 (en) | 2018-09-28 |
CN110506172A (en) | 2019-11-26 |
CN110506172B (en) | 2022-04-29 |
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