WO2007017004A1 - Frein de stationnement pour une boite de vitesses - Google Patents

Frein de stationnement pour une boite de vitesses Download PDF

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Publication number
WO2007017004A1
WO2007017004A1 PCT/EP2006/005984 EP2006005984W WO2007017004A1 WO 2007017004 A1 WO2007017004 A1 WO 2007017004A1 EP 2006005984 W EP2006005984 W EP 2006005984W WO 2007017004 A1 WO2007017004 A1 WO 2007017004A1
Authority
WO
WIPO (PCT)
Prior art keywords
parking brake
brake according
sleeve
abutment
support
Prior art date
Application number
PCT/EP2006/005984
Other languages
German (de)
English (en)
Inventor
Waldemar Maier
Kerstin Bieber
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2007017004A1 publication Critical patent/WO2007017004A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
    • 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
    • F16H63/34—Locking or disabling mechanisms
    • F16H63/3416—Parking lock mechanisms or brakes in the transmission

Definitions

  • Parking lock for a transmission in particular automatic or two-clutch gearbox for motor vehicles, with a standing with the output of the transmission operatively connected Parksperrrad, with a locking element which is mounted relative to the rotational movement of the Parksperrrades stationary to a transmission housing, a part of a transmission case and by means of a spring in the blocking position is movable.
  • Such a generic parking brake is known from DE-102 22 718 A1.
  • This parking lock has a locking ring, which is rotatably connected to the housing of the transmission and can be moved axially by means of a spring and a hydraulic cylinder and brought into connection with the Parksperrrad and released.
  • the engagement of the locking ring, so the locking of the parking brake, via the spring, while the release of the parking brake by means of the hydraulic cylinder takes place.
  • This parking lock has proven itself, but has the disadvantage that to release the parking brake hydraulic fluid is required, which is not available in all types of transmissions.
  • a separate space for the locking ring and the hydraulic cylinder is required.
  • the wide Ren own Parksperrrad is needed because it is difficult to find a common gear of the transmission, which has enough free space around.
  • the object of the invention is therefore to provide a parking brake for a transmission available, which works without hydraulic connection or hydraulic control fluid and hydraulic cylinder and beyond are used at any point in the transmission, and also use a gear of the transmission as Parksperrrad can be. Furthermore, the parking brake should be able to be made available as an independent unit, which can be mounted mounted on a gearbox.
  • the object of the invention is achieved in that the blocking element is designed as a guide in a radially movable ratchet, that the ratchet of the Parksperrrad away form fit against the force of the spring is movable, that the abutment of the spring is radially movable towards Parksperrrad positively and that a selector lever is provided which causes the positive movements of the ratchet tooth and the abutment.
  • This configuration of the parking brake is released without additional aids, such as hydraulic pressure fluid, only by pressing the selector lever of the locking tooth so that it can engage in a gap of Parksperrrades or a gear, and on the other hand, by pressing the selector lever of the ratchet off the gap of the park ratchet wheel or gear raised.
  • the terms "Park Sperrrad” and "gear” were deliberately used synonymously to show that it is of minor importance for the parking brake, whether a separate Parksperrrad is available or whether any connected to the output shaft of the transmission in operative connection gear additionally used as Parksperrrad becomes.
  • the ratchet has the appropriate shape to with the / the Lü- bridge (s) of the gear in operative connection to be able to. This is possible because the parking brake according to the invention can be grown without any additional aids at any point to meet the blocking function.
  • the selector lever is designed as a rotary lever
  • the rotary shaft is connected to at least one axial ramp, which is supported on at least a second axial ramp, and that the second axial ramp relative to the rotary shaft rotatably guided axially movable and supported on the abutment
  • the axial ramps which are arranged with radial distance to the axis of the rotary shaft, together form a length-movable component, so that the abutment can be moved axially by operating the selector lever.
  • the axial ramp or the axial ramps are / are arranged on a turntable and the second axial ramp or axial ramps on a support disk. Between the turntable and the support disk, at least one intermediate disk can be provided with ramps arranged on both sides and suitably designed.
  • the support disc is connected to the abutment or formed as an abutment, wherein the abutment rotatably guided and mounted axially movable.
  • the abutment advantageously has a cylinder body in which the ratchet tooth is guided in a rotationally fixed manner and arranged axially movably.
  • the cylinder body, the support disk, the intermediate disk or intermediate disks and the turntable are advantageously arranged in a support sleeve which is fastened to the transmission housing or to the part of the transmission housing.
  • both the cylinder body with ratchet tooth and the various discs have a good guide in the support sleeve, wherein the support sleeve serves as a supporting element of the parking brake.
  • a control sleeve is arranged, which is non-rotatably connected to the hub or the rotary shaft and axially fixed to the hub and / or the transmission housing or the part of the transmission housing is connected. It can also be connected to a separate receiving plate.
  • the control sleeve is mounted in an advantageous manner on the support sleeve so that it has a guide there and can follow via the rotary connection with the turntable or the rotary shaft of the rotational movement of the selector lever.
  • both the support sleeve and the control sleeve need not be completely closed sleeves, but that they may have or have openings, recesses and the like.
  • Around the control sleeve around a guide sleeve is arranged, which engages behind a shoulder on the ratchet tooth or an intermediate element with a collar or lugs.
  • the guide sleeve is also mounted in an advantageous manner on the control sleeve, so that a good leadership is given.
  • the guide sleeve is the element with which the ratchet tooth is moved away from the park ratchet or gear and the parking lock is released.
  • At least one, preferably two grooves are provided on the circumference of the cylinder body, at least one longitudinal slot is provided in the guide bush and at least one opening is provided in the support sleeve. In the opening a pin is radially inserted, which engages in the groove and the longitudinal slot.
  • an opening is provided in the guide sleeve or the control sleeve at least one screw slot and in the other component, wherein in the opening a radial pin is inserted, which engages in the screw slot.
  • the screw slot is a slot that is helically disposed so that rotational movement of the control sleeve over the selector lever produces longitudinal displacement of the guide sleeve over the helical slot in conjunction with the radial pin (s). As a result, the guide sleeve is moved toward the Parksperrrad or away from it by the rotational movement of the selector lever.
  • At least one locking lever is mounted on the abutment or cylinder body, the axis of which is aligned parallel to the axis of the rotary shaft, wherein the inner lever arm of the locking lever in the guideway of the Sperrzah- nes in the cylinder body is pivotable and wherein the outer lever arm crosses the support sleeve with a circumferential stop the control sleeve is operatively connected in such a way that a rotational movement of the circumferential stop due to a rotational movement of the control sleeve moves the inner lever arm out of the guideway.
  • the locking lever is turned in the opposite direction, i. returned in the reverse direction by a spring.
  • the primary or secondary part of a locking detent is rotatably connected to the control sleeve, wherein the other component of the Rastarrettechnik on Gearbox or is supported on the part of the transmission housing.
  • FIG. 1 shows a side view of a parking brake in the released position
  • FIG. 2 shows a longitudinal section through a parking lock according to FIG. 1 in the released position
  • FIG. 4 shows a side view of a parking lock in the locked position
  • Figure 5 shows a longitudinal section through a parking lock according to
  • Figure 6 shows a section through the parking brake according to the line
  • 1 denotes a part of a gear housing, which is designed as a plate.
  • a rotary shaft denoted by 2 is mounted and sealed.
  • tet on which on the outside of the part 1, a designated 3 selector lever is firmly attached.
  • ramps 5 are fixed to the axial.
  • the rotary disk 4 is followed by a first intermediate disk 6, a second intermediate disk 7 and a support disk 8, the support disk 8 having second axial ramps 9.
  • guide pins 10 and the support plate guide pins 11 are fixed, which in each case in the opposite direction, ie from the hub in the direction of supporting disc and vice versa.
  • the guide pins 10 and 11 coordinate, as already explained in the general description, the rotational movements of the intermediate discs with each other and with respect to the support plate and the hub.
  • an intermediate ring 12 connects, which is rotatably connected to the support plate 8.
  • locking lever 13 is mounted, which are pivotally mounted about bolts which are aligned parallel to the axis of the rotary shaft 2.
  • a cylinder body 14 connects, in which a designated 15 ratchet rotationally fixed but longitudinally displaceable.
  • the bearing of the ratchet tooth 15 in the cylinder body 14 via a square guide, which also corresponds to the outer contour of the ratchet tooth 15.
  • a compression spring 15a is installed, which biases the ratchet in the direction Park Sperrrad.
  • the cylinder body 14, the intermediate ring 12 and the support plate 8 are rotatably connected to each other. They can be manufactured as individual components and welded together, but they can also be in operative connection with each other by means of torque-transmitting elements.
  • the rotary disk 4, the first intermediate disk 6, the second intermediate disk 7, the support disk 8, the intermediate ring 12 and the cylinder body 14 are arranged and guided in a support sleeve 16, wherein the support sleeve 16 is attached to part 1 of the transmission housing.
  • a designated 17 control sleeve is mounted, on which further a guide sleeve 18 is supported.
  • the control sleeve 17 is, but not shown in detail, rotatably connected to the hub 4. This can be done for example via windows in the support sleeve 16, wherein an axial fixing of the control sleeve 17 is provided, which can also be done via the turntable 4.
  • longitudinal slots 19 are mounted, in which protrude pins 20 which are arranged in openings of the support sleeve 16 and project inwardly into grooves 21 in the cylinder body 14.
  • the guide sleeve 18 has screw slots 22 in the radial pins 23 protrude, which are defined in openings in the control sleeve 17.
  • the radial pins 23 and the screw slots 22 takes place during a rotational movement of the control sleeve 17 is an axial movement of the guide sleeve 18 away from the Parksperrrad and back.
  • the locking levers 13 have an inner lever arm 24 and an outer lever arm 25.
  • the locking lever is arranged so that the inner lever arm 24 can pivot in the region of the square guide of the locking tooth 15 or releases the square guide.
  • the outer lever arms 25 are based on springs 26 which bias the locking lever 13 and the inner lever arm 24 in the direction of the square guide.
  • the outer lever arms 25 protrude through window 27 in the support sleeve 16 and communicate with circumferential stops 28 on the control sleeve 17 in operative connection, so that a rotation of the control sleeve 17 via the peripheral stops the locking lever 13 moves against the force of the springs 26 and releases the square guide.
  • the guide sleeve 18 has at its the locking tooth 15 adjacent the end of a collar 29 which is directed radially inward. At the collar 29 is a ring 30, which projects beyond the end face of the cylinder body 14 and further adjacent to a shoulder 31 on the locking tooth 15.
  • a primary part 33 is fixed to the part 1 of the transmission housing.
  • the primary part 33 is shown only as a sleeve, wherein a locking element is used to operate the parking brake in the sleeve, which is in operative connection with the recesses on the secondary part 32, so that with this device two locking positions for the control sleeve 17, the hub 4 and the selector lever 3 are defined.
  • the parking brake according to the invention has the following operation:
  • the selector lever 3 is in the released position of the parking brake.
  • the turntable 4 the support disk 8 and the first and second intermediate disk 6 and 7 are rotated against each other so that the axial ramps 5 and the second axial ramps 9 are moved away from each other, so that the support disk 8 has the smallest distance to the turntable 4.
  • the intermediate ring 12 and the cylinder body 14 are shifted to the position that comes closest to the part 1.
  • the locking tooth 15 is moved over the shoulder 31, the ring 30 and the collar 29 of the guide sleeve in the direction of part 1, because the radial pins 23 have raised the guide sleeve 18 by the corresponding rotational position of the control sleeve 17.
  • the compression spring 15a is relaxed and the locking lever 13 are pivoted by the springs 26 behind the ratchet 15 - they were already released by rotation of the control disk 17 of the circumferential stops - and lock the system.
  • the parking lock is now activated, locked and locked.
  • the support disk 8 can also move back to its original position and the locking tooth 15 and the cylinder body 14 are lifted by the guide sleeve 18, wherein the guide sleeve 18 receives its displacement movement on the radial pins 23 and the screw slots 22 through the control sleeve 17.
  • the circumferential stops 28 on the control sleeve 17 at the same time the locking lever 13 pivoted back so that the ratchet can also move away completely from Parksperrrad.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

La présente invention concerne un frein de stationnement pour une boîte de vitesses, en particulier pour une boîte de vitesses automatique ou une boîte de vitesses à double embrayage destinée à des automobiles, comprenant une roue de frein de stationnement qui est en liaison active avec l'entraînement de la boîte de vitesses, ainsi qu'un élément de blocage (15) qui est monté fixement sur un carter de boîte de vitesses (1) ou une partie d'un carter de boîte de vitesses, à l'encontre du mouvement de rotation de la roue de frein de stationnement, et qui peut être déplacé au moyen d'un ressort (15a) dans une position de blocage. L'élément de blocage est conçu sous forme de dent de blocage (15) pouvant se déplacer en direction radiale dans une coulisse. La dent de blocage (15) peut s'éloigner de la roue de frein de stationnement par liaison de forme, à l'encontre de la force du ressort (15a). La butée (8) du ressort (15a) peut se déplacer par liaison de forme en direction radiale vers la roue de frein de stationnement. Un levier de sélection (3) permet d'induire les déplacements par liaison de forme de la dent de blocage (15) et de la butée (8) du ressort.
PCT/EP2006/005984 2005-08-09 2006-06-22 Frein de stationnement pour une boite de vitesses WO2007017004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510037524 DE102005037524A1 (de) 2005-08-09 2005-08-09 Parksperre für ein Getriebe
DE102005037524.3 2005-08-09

Publications (1)

Publication Number Publication Date
WO2007017004A1 true WO2007017004A1 (fr) 2007-02-15

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ID=36709328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005984 WO2007017004A1 (fr) 2005-08-09 2006-06-22 Frein de stationnement pour une boite de vitesses

Country Status (2)

Country Link
DE (1) DE102005037524A1 (fr)
WO (1) WO2007017004A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080677A1 (it) * 2008-11-11 2010-05-12 Cnh Italia Spa Apparecchiatura per la frenatura di stazionamento di un veicolo, in particolare, di un trattore agricolo

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008061201A1 (de) 2008-12-09 2010-06-10 Schaeffler Kg Mechanische, radial wirkende Rotationsarretierung
DE102009037753A1 (de) 2009-08-17 2011-02-24 Schaeffler Technologies Gmbh & Co. Kg Radial wirkende Rotationsarretierung
DE102019128601A1 (de) * 2019-10-23 2021-04-29 Schaeffler Technologies AG & Co. KG Parksperrvorrichtung
DE102020127414A1 (de) 2020-10-19 2022-04-21 Schaeffler Technologies AG & Co. KG Parksperre für ein Getriebe sowie Getriebe und Antriebsstrang
DE102020127412A1 (de) 2020-10-19 2022-04-21 Schaeffler Technologies AG & Co. KG Parksperre für ein Getriebe sowie Getriebe mit einer Parksperre und Antriebsstrang

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386532A (en) * 1966-01-05 1968-06-04 Ford Motor Co Parking brake for use in a driveline
GB2048407A (en) * 1979-04-09 1980-12-10 Case Co J I Parking brake
JPH01223058A (ja) * 1988-03-02 1989-09-06 Nissan Motor Co Ltd 多軸式自動変速機のパーキング機構
DE10222718A1 (de) 2002-05-23 2004-02-05 Ina-Schaeffler Kg Parksperre eines Getriebes
WO2004097267A1 (fr) * 2003-04-25 2004-11-11 Isuzu Motors Limited Dispositif de stationnement pour vehicule motorise

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610004A (en) * 1969-09-30 1971-10-05 Gen Motors Corp Parking lock for transmissions
US5531303A (en) * 1994-11-17 1996-07-02 General Motors Corporation torque mechanism for a power transmission
AT404703B (de) * 1997-05-06 1999-02-25 Steyr Daimler Puch Ag Parksperre für ein kraftfahrzeug
JP2000264178A (ja) * 1999-03-12 2000-09-26 Aichi Mach Ind Co Ltd 車両用パーキング装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386532A (en) * 1966-01-05 1968-06-04 Ford Motor Co Parking brake for use in a driveline
GB2048407A (en) * 1979-04-09 1980-12-10 Case Co J I Parking brake
JPH01223058A (ja) * 1988-03-02 1989-09-06 Nissan Motor Co Ltd 多軸式自動変速機のパーキング機構
DE10222718A1 (de) 2002-05-23 2004-02-05 Ina-Schaeffler Kg Parksperre eines Getriebes
WO2004097267A1 (fr) * 2003-04-25 2004-11-11 Isuzu Motors Limited Dispositif de stationnement pour vehicule motorise
EP1619423A1 (fr) * 2003-04-25 2006-01-25 Isuzu Motors Limited Dispositif de stationnement pour vehicule motorise

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 542 (M - 901) 5 December 1989 (1989-12-05) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080677A1 (it) * 2008-11-11 2010-05-12 Cnh Italia Spa Apparecchiatura per la frenatura di stazionamento di un veicolo, in particolare, di un trattore agricolo
EP2184198A1 (fr) * 2008-11-11 2010-05-12 CNH Italia S.p.A. Appareil pour le verrouillage de parc d'un véhicule, en particulier, pour un tracteur agricole
US8631916B2 (en) 2008-11-11 2014-01-21 Cnh America Llc Apparatus for the parking lock of an agricultural vehicle

Also Published As

Publication number Publication date
DE102005037524A1 (de) 2007-02-22

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