EP3948030A1 - Bras intermediaire de passage de vitesse - Google Patents
Bras intermediaire de passage de vitesseInfo
- Publication number
- EP3948030A1 EP3948030A1 EP20724419.5A EP20724419A EP3948030A1 EP 3948030 A1 EP3948030 A1 EP 3948030A1 EP 20724419 A EP20724419 A EP 20724419A EP 3948030 A1 EP3948030 A1 EP 3948030A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- axis
- fork
- arm
- tertiary
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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
-
- 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
- F16H63/3013—Constructional features of the final output mechanisms the final output mechanism being characterised by linkages converting movement, e.g. into opposite direction by a pivoting lever linking two shift rods
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
- F16H2063/3079—Shift rod assembly, e.g. supporting, assembly or manufacturing of shift rails or rods; Special details thereof
Definitions
- the present invention relates to actuation devices for selecting and changing gear in a vehicle gearbox, in particular in a robotic gearbox.
- the present invention aims to constitute an internal gearbox actuation device that is particularly precise in its positioning.
- Actuating devices which make it possible to carry out a selection and a gear change by means of actuators within a gearbox. They generally include a fork used for the passage of speed its driven in translation by a wise step finger via an elongated interface piece. For architectural reasons, the fork is sometimes far from the passing finger. Since the risk of deformation of the interface part increases with its elongation, it is known to mitigate this risk by means of a support fixed to the gearbox housing and taking up the forces undergone by the interface part via a pivot connection of the gearbox. support with it.
- the aim of the invention is to overcome at least some of the aforementioned drawbacks and to provide an actuating device with reduced bulk and capable of combining advantages of precision and reliability for its implementation.
- the object of the invention is therefore an internal gearbox actuation device comprising a main shaft mounted slidingly through a housing and comprising a transverse extension capable of acting on an intermediate arm adapted to drive a fork. gear change, the intermediate spar being mounted in translation relative to the housing.
- the passage fork is placed on a secondary axis.
- the intermediate spar is mounted on a tertiary axis.
- the tertiary axis is slidably mounted through the housing and the intermediate spar is fixed on the tertiary axis.
- the transverse extension of the main axis can further be adapted to cooperate with a groove of the intermediate arm.
- the intermediate spar comprises a groove capable of cooperating with a projection of the pitch fork.
- the wing of the fork has a rectangular section.
- At least one of the main, secondary and tertiary axes is slidably mounted in bearings housed in the housing.
- a rotation stop device is provided to limit angular movement of the intermediate arm.
- the rotation stop device comprises means for guiding the intermediate arm in translation.
- FIG 1 shows a prior art gearbox actuator
- FIG 2 is a perspective view of one embodiment of the actuator.
- FIG 3 shows another perspective view of the actuator of Figure 2.
- Figure 1 illustrates an internal gearbox actuation device described by patent application FR3026808A 1.
- the device comprises several actuating elements allowing a wise step of speed, in particular a main axis A l mounted slurry through a CO housing and comprising a transverse extension DO able to act on an intermediate arm B 0 adapted to drive a shifting range FO, the intermediate arm B0 being rotatably mounted relative to the CO housing around a pivot link PO on a support S 0 provided on the CO housing.
- the pivot PO is designed to take up the forces undergone by the intermediate arm B 0 when the finger DO rotates the arm B0 to cause the fork FO to move.
- the direction of translation of the fork FO is reversed with respect to that of the finger D0.
- this device combines the location dispersions of the pivot PO and of the finger D0 relative to the casing C0, which causes an undesired rotation of the arm B0 around the pivot PO and therefore an imprecision of the positioning of the fork F0.
- Figures 2 and 3 show an embodiment of the actuating device according to the invention provided in a gearbox for internal gear shifting control and adapted to cooperate with the housing 3, 4 of the gearbox.
- housing structural parts of the gearbox, comprising in particular one or two bodies on which the actuating device is assembled.
- each shaft mounted sliding through the casing 3, 4 can be mounted through one or more bodies of the casing 3, 4.
- the device comprises a main shaft 1 mounted to slide through at least one body of the housing 3, 4 and a secondary shaft 7 comprising a gear shift fork 8.
- an intermediate arm 14 is mounted in translation with respect to the housing 3, 4. It transmits a translation of a transverse extension ale 1 integral with the main axis 1 to the fork 8.
- the fork 8 can be guided in translation thanks to a secondary axis 7.
- the secondary axis 7 is slidably mounted through the housing 3, 4 and the fork 8 is linked without the possibility of translation on the secondary axis 7.
- the spar 14 can also be guided in translation by means of a tertiary axis 15.
- the tertiary axis 15 takes up the forces, in particular shear, undergone by the spar 14 when the spar 14 transmits the translation of the axis 1 to the fork 7.
- the tertiary axis 15 is slidably mounted through the casing 3, 4 and the spar 14 is fixed on the tertiary axis 15, for example by means of a hub 13 of the arm 14 as seemed by shrinking or by means of a pin to the axis 15.
- the main, secondary and tertiary axles are cylindrical extensions passing at least partially through an element of the housing 3, 4. They are made of a material comprising aluminum.
- the main axis 1 comprises a transverse extension ale 2 adapted to cooperate with a groove 14a of the arm 14.
- the transverse extension 2 is for example a finger 2 of round or square section and extending approximately perpendicular to the main axis 1. .
- the side member 14 may include a groove 14b adapted to cooperate with a projection 12 of the passage fork 8.
- the fork 8 is linked to the arm 14 if the protrusion 12 cooperates with the groove 14b, or unbound from the arm 14 in the case of reverse.
- the s wing 12, the rod 1 8 and the transverse extension 19 may include a flat or have a rectangular section.
- the main, secondary or tertiary axes 3, 7, 15 are for example mounted to slide relative to the housing 3, 4 through bearings 10, 1 1, 17 which are housed in the housing 3, 4 or fixed on said axes.
- the tertiary axis 15 can be fixed to the casing 3, 4 and the spar 14 is then mounted to slide on the tertiary axis 15.
- the bearings 10, 11, 17 are for example split rings made of a material comprising metal and with an inner coating of polytetrafluoroethylene (PTFE).
- a rotational stop device is provided to limit an angular movement of the arm 14 around the tertiary axis 15. It comprises means for guiding the arm 14 in translation, such as a rod 18. linked to the housing 3, 4 passing through a tubular shaft 16 provided on the side member 14.
- the clearances between pins and bearings in particular the clearance defined by the diameter of the rod 18 and the tube 16, must be large enough to allow the spar 14 to slide freely and small enough to limit its angular clearance.
- the manufacturing tolerance is substantially plus or minus nine micrometers.
- Each ring 10, 11, 16, 17 may have a housing provided in the casing 3, 4 with a section of between twelve and twenty millimeters (adjustment H7).
- the manufacturing tolerance is substantially plus or minus fifteen micrometers.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1903625A FR3094771B1 (fr) | 2019-04-04 | 2019-04-04 | Bras intermediaire de passage de vitesse |
PCT/EP2020/059171 WO2020201308A1 (fr) | 2019-04-04 | 2020-03-31 | Bras intermediaire de passage de vitesse |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3948030A1 true EP3948030A1 (fr) | 2022-02-09 |
Family
ID=68281500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20724419.5A Pending EP3948030A1 (fr) | 2019-04-04 | 2020-03-31 | Bras intermediaire de passage de vitesse |
Country Status (7)
Country | Link |
---|---|
US (1) | US11725728B2 (fr) |
EP (1) | EP3948030A1 (fr) |
JP (1) | JP2022527328A (fr) |
KR (1) | KR20210150469A (fr) |
CN (1) | CN114026354B (fr) |
FR (1) | FR3094771B1 (fr) |
WO (1) | WO2020201308A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0544614Y2 (fr) * | 1985-09-19 | 1993-11-12 | ||
DE3929678A1 (de) | 1989-09-07 | 1991-03-28 | Porsche Ag | Schaltvorrichtung fuer ein zahnraeder-wechselgetriebe eines kraftfahrzeugs |
US5385223A (en) * | 1994-02-16 | 1995-01-31 | Saturn Corporation | Shift control mechanism for a multi-speed countershaft transmission |
DE102007016219B4 (de) * | 2007-04-04 | 2014-05-22 | Audi Ag | Schaltvorrichtung für Geschwindigkeits-Wechselgetriebe |
DE102012022543A1 (de) * | 2012-11-12 | 2014-05-15 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Schaltungsanordnung für ein Kraftfahrzeuggetriebe |
FR3026808B1 (fr) | 2014-10-06 | 2016-10-21 | Renault Sa | Dispositif de commande interne de boite de vitesses avec aide au passage integree |
CN105333136B (zh) * | 2015-11-30 | 2017-12-29 | 常州东风农机集团有限公司 | 轮式拖拉机变速箱远程操纵机构 |
-
2019
- 2019-04-04 FR FR1903625A patent/FR3094771B1/fr active Active
-
2020
- 2020-03-31 JP JP2021558740A patent/JP2022527328A/ja active Pending
- 2020-03-31 WO PCT/EP2020/059171 patent/WO2020201308A1/fr unknown
- 2020-03-31 CN CN202080027309.3A patent/CN114026354B/zh active Active
- 2020-03-31 US US17/600,449 patent/US11725728B2/en active Active
- 2020-03-31 EP EP20724419.5A patent/EP3948030A1/fr active Pending
- 2020-03-31 KR KR1020217036034A patent/KR20210150469A/ko unknown
Also Published As
Publication number | Publication date |
---|---|
KR20210150469A (ko) | 2021-12-10 |
CN114026354A (zh) | 2022-02-08 |
US11725728B2 (en) | 2023-08-15 |
US20220196150A1 (en) | 2022-06-23 |
FR3094771B1 (fr) | 2021-04-02 |
JP2022527328A (ja) | 2022-06-01 |
FR3094771A1 (fr) | 2020-10-09 |
WO2020201308A1 (fr) | 2020-10-08 |
CN114026354B (zh) | 2024-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20210916 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NISSAN MOTOR CO., LTD. Owner name: RENAULT S.A.S |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NISSAN MOTOR CO., LTD. Owner name: RENAULT S.A.S |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20221020 |