EP1230102A1 - Dispositif de reglage pour accouplement muni d'un systeme de blocage de couple resistant - Google Patents

Dispositif de reglage pour accouplement muni d'un systeme de blocage de couple resistant

Info

Publication number
EP1230102A1
EP1230102A1 EP00987104A EP00987104A EP1230102A1 EP 1230102 A1 EP1230102 A1 EP 1230102A1 EP 00987104 A EP00987104 A EP 00987104A EP 00987104 A EP00987104 A EP 00987104A EP 1230102 A1 EP1230102 A1 EP 1230102A1
Authority
EP
European Patent Office
Prior art keywords
locking elements
output element
drive
compensation device
play
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.)
Withdrawn
Application number
EP00987104A
Other languages
German (de)
English (en)
Inventor
Georg Scheck
Peter Schumann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co 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 Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of EP1230102A1 publication Critical patent/EP1230102A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2/933—Positioning and locking mechanisms rotatable

Definitions

  • the invention relates to an adjusting device according to the preamble of claim 1.
  • the drive-side torque is transmitted between the drive element and the load torque lock by means of interlocking elements. Since the position of the locking elements of the load torque lock changes due to tolerances and wear due to high surface pressures, it is Functional reliability of the known adjustment device required to install a large game, so that between the interlocking elements functionally there is a rotation angle play without which a gradual transmission or a reversal of direction of the drive-side torques is not possible. A minimal rotation angle play must also be present between the interlocking elements of the drive element and the load torque lock in order to prevent wear and to allow a certain elastic deformation.
  • an excessively large angular play particularly in the case of a gradual transmission of the drive-side torque, has a disturbing effect, since the angular play causes a correspondingly large free travel or free travel of the drive element.
  • an excessively large angle of play in the case of a reversal of movement can lead to an annoying reversal game and imprecise handling.
  • the known adjusting device has a relatively large backlash in the brake unit due to component tolerances. In order to limit this, it must be manufactured precisely within a narrow tolerance range. The assembly of the individual components provided with small tolerances is complex since the components to be connected have to be positioned exactly with respect to one another.
  • the load torque lock in a cylindrical adjustment housing each has two locking elements arranged in pairs on two levels, the clamping surfaces of which, under the action of the play compensation device, bear against the adjustment housing with a predetermined preload, in that the play compensation device is at least partially arranged between the mutually opposite spreading surfaces of the locking element pairs and that Pairs of locking elements apart.
  • a torque introduced on the output side reinforces the contact of the clamping surfaces and thus the locking element pairs on the adjustment housing.
  • the backlash compensation device also serves to ensure that the locking elements rest on the adjusting housing with the predetermined pretensioning force and to ensure automatic readjustment that becomes necessary as a result of component wear. It can consist, for example, of a wedge arranged between the spreading surfaces of the pairs of locking elements, the wedge surfaces of which face the spreading surfaces of the pairs of locking elements and which can be displaceably guided with a wedge guide in a link of the drive element and radially advanced by means of a spring. it is curious that the wedge surfaces rest against the spreading surfaces without play.
  • the play compensation device can be designed as a cylindrical roller or ball or as an eccentric which is rotatably arranged between the spreading surfaces of the locking elements and is preferably designed as a stepped bolt.
  • the object of the present invention is to provide an adjusting device with an optimum angle of play between a drive element, an output element and a load torque lock, which requires no adjustment during assembly and does not require readjustment of the angle of play even after prolonged use and is simple and space-saving.
  • the solution according to the invention creates an adjusting device which ensures an optimal rotation angle play between a drive element, an output element and a load torque lock and requires no adjustment both during assembly and no adjustment of the rotation angle play after prolonged use. Since the locking elements are only arranged in one plane of the load torque lock, the adjustment device can be constructed very simply and in a space-saving manner, but a switching game occurs when switching from one adjustment direction to the other.
  • the backlash compensation device preferably has wedge surfaces which abut the output element and / or the locking elements, and at least one spring which prestresses the backlash compensation device perpendicular to the axis of the load torque lock in the direction of a reduction in the distance between the backlash compensation device, the output element and the locking elements.
  • the wedge surfaces close such an angle with the axis of symmetry of the load torque lock a that the connection between the game compensation device on the one hand and the output element and / or the locking elements on the other hand is self-locking.
  • the wedge surfaces can optionally be provided between the lash adjuster and the output element and / or between the lash adjuster and the locking elements.
  • the wedge surfaces of the play compensation device rest against counter-wedge surfaces of the output element and essentially flat surfaces of the play compensation device on the mutually facing expansion surfaces of the locking elements or parts of the expansion surfaces.
  • the output element can have exhibitions or arches designed to be symmetrical to the axis of symmetry of the load torque lock for point or line contact of essentially straight or inclined surfaces of the play compensation device.
  • the wedge surfaces of the play compensation device are in contact with the exhibitions or arches of the output element and essentially flat surfaces of the play compensation device are in contact with the mutually facing expansion surfaces of the locking elements or parts of the expansion surfaces.
  • the wedge surfaces of the lash adjuster lie on bevelled spreading surfaces of the locking elements and the essentially straight surfaces of the lash adjuster on the exhibitions or arches of the output element.
  • the drive element has claws which positively engage in recesses of the output element in the case of a drive-side torque after the frictional engagement of the locking elements on the adjusting housing has been removed and take it along in the drive direction.
  • the drive element can have recesses which, when the torque on the drive side is removed after the frictional engagement of the locking elements on the adjusting housing has been eliminated, form-fit on claws of the output element and take it along in the drive direction.
  • FIG. 1 a cross section through a load torque lock with a pair of locking elements and a device for play compensation between drive element, output element and load torque lock with adjacent wedge surfaces of the play compensation device and the output element;
  • FIG. 2 shows a cross section through a load torque lock as in FIG. 1 with a play compensation device with wedge surfaces of the play compensation device lying against exhibitions or arches of the output element and
  • Figure 3 - a cross section through a load torque lock as in Figures 1 and 2 with a clearance compensation device with adjacent wedge surfaces of the clearance compensation device and the locking elements.
  • FIGS. 1 to 3 show different exemplary embodiments of adjusting devices with a pair of locking elements arranged in a plane of the load torque lock and a device for compensating for play between the drive element, output element and load torque lock.
  • the reference numbers used correspond in all three figures insofar as the components are the same or have the same function and differ only in the addition of an identification letter (a, b or c) for the various embodiments of the invention.
  • FIG. 1 shows a section through an adjustment device acting on both sides with an adjustment housing 10 shown with hatched hatching, in which the functional parts of a load torque lock la with automatic play compensation are arranged.
  • a driving wheel 2a connected to a drive, for example a drive lever, as the drive element, and a claw-shaped output element 3a, the claws 31a, 32a of which through window-like recesses 21a, 21a 'in driving wheel 2a and have a distance s from the edge of window-like recesses 21a, 21a'.
  • Two cross-hatched, circular segment-like locking elements 4a, 4a 'rest with clamping surfaces 42a, 42a', 42a '', 42a '' ', which protrude from the peripheral outer surface of the locking elements 4a, 4a', on the cylindrical inner surface of the adjustment housing 10 each have two semicircular recesses 43a, 43a ', 43a' ', 43a' ', 43a' ', into the drive cams 22a, 22a ', 22a' ', 22a' ', 22a' '' of the driving wheel 2a shown with a solid line at a distance s from Engage the wall of the semicircular recesses 43a, 43a ', 43a' ', 43a' '.
  • the locking elements 4a, 4a ' Facing the axis of the load torque lock la, the locking elements 4a, 4a 'have mutually opposite spreading surfaces 41a, 41a' with displays or arches 411a, 411a 'formed thereon symmetrically to the axis of symmetry of the load torque lock la; 412a; 412a '.
  • a play compensation device 5a is arranged, which is biased by a spring 7a between the two locking elements 4a, 4a' and causes the semicircular recesses 43a, 43a ', 43a'', 43a '''of the locking elements 4a, 4a' without play (Fig. 2) against the drive cams 22a, 22a ', 22a'',22a''' of the driving wheel 2a.
  • the play compensation between drive element, output element and load torque lock is thus effected with only one pair of locking elements in one plane.
  • This play is eliminated by the action of the play compensation device 5a and the drive cams 22a, 22a ', 22a'',22a''' of the driving wheel 2a lie, as shown in FIG. 2, on the semicircular recesses 43a, 43a ', 43a''without play. 43a '''of the locking elements 4a, 4a'.
  • the play compensation device 5a has a plurality of wedge surfaces 51a, 51a '; 52a, 52a '; 53a, 53a 'with which they can be attached to corresponding mating wedge surfaces 33a, 33a'; 34a, 34a '; 35a, 35a 'of the output element 3a.
  • the play compensation device 5a On the side facing the locking elements 4a, 4a ', the play compensation device 5a consists of flat or rectilinear surfaces 54a, 54a', which are located at contact points A, A ', B, B' with the exhibitions or arches 411a, 411a ', - 412a; 412a 'of the spreading surfaces 41a, 41a' of the locking elements 4a, 4a 'touch.
  • the spring 7a serving to preload the play compensation device 5a is arranged between the bent ends 55a, 55a 'of the play compensation device 5a and an end face of the output element 3a in such a way that the wedge surfaces 51a, 51a'; 52a, 52a '; 53a, 53a 'parallel to the outside, i.e. be moved onto the locking elements 4a, 4a ', so that the locking elements 4a, 4a' are pressed parallel to the outside via the contact points A, A 'and B, B'.
  • the angle a between the wedge surfaces 51a, 51a '; 52a, 52a '; 53a, 53a 'of the lash adjuster 5a and the counter wedge surfaces 33a, 33a'; 34a, 34a '; 35a, 35a 'of the output element 3a is chosen so that the play compensation device 5a does not give way under load, ie is moved against the action of the spring 7a.
  • wedge surfaces 51a, 51a '; 52a, 52a '; 53a, 53a 'and counter-wedge surfaces 33a, 33a'; 34a, 34a '; 35a, 35a ' can optionally be arranged on the lash adjuster 5a, on the output element 3a and / or on the locking elements 4a, 4a'.
  • the locking elements 4a, 4a ' move parallel to the outside when the play compensation device 5a is adjusted, so that the play between the drive element 2a, the output element 3a and the load torque lock la is eliminated or an elastic contact of the drive cams 22a, 22a', 22a '', 22a '' 'on the recesses 43a, 43a', 43a '', 43a '' 'of the locking elements 4a, 4a' for the transmission of a drive torque.
  • the type of play compensation between the drive element 2a, the output element 3a and the load torque lock la is based on large wedge paths for small paths of the locking elements 4a, 4a ', the wedge angle a being dimensioned such that the play compensation device 5a does not yield under load and against the Effect of the spring 7a can be moved.
  • a torque introduced on the drive side via the driving wheel 2a leads to a slight rotation of the locking elements 4a, 4a 'due to the torque transmission from the drive cams 22a, 22a', 22a '', 22a '' because of the circularly directed force application remote from the center of rotation.
  • a torque introduced on the output side via the output element 3a leads to the locking elements 4a, 4a 'being pushed apart due to the more central and radially directed force application of the output element 3a as a result of the force application of the output element 3a via the play compensation device 5a and the bearing points A, A' and B, B 'at the exhibitions or arches 411a, 411a'; 412a; 412a 'of the spreading surfaces 41a, 41a' of the locking elements 4a, 4a ', which leads to a strengthening of the contact of the clamping surfaces 42a, 42a', 42a '', 42a '', 42a '' 'of the locking elements 4a, 4a' on the adjustment housing 10 and thus to a blocking of the torque introduced on the output side.
  • FIG. 2 shows an adjustment device with a load torque lock 1b and an adjustment housing 10, in which, analogously to the exemplary embodiment described above, a drive wheel 2b connected to a drive and an output element 3b, the claws 31b, 32b of which are formed by window-like recesses 21b, 21b 'in Grab driver wheel 2b and rest against the edge of window-like recesses 21b, 21b 'without play.
  • Two locking elements 4b, 4b 'in the form of a circular segment rest with their clamping surfaces 42b, 42b', 42b '', 42b ''on the adjusting housing 10 and each have two semicircular recesses 43b, 43b', 43b '', 43b '', in the drive cams 22b, 22b ', 22b'',22b''' of the driving wheel 2b with a Intervene distance s to the wall of the semicircular recesses 43b, 43b ', 43b'',43b''' of the locking elements 4b, 4b '.
  • a play compensation device 5b is arranged between the locking elements 4b, 4b 'and the driven element 3b and is pushed in parallel between the two locking elements 4b, 4b' by means of a spring 7b and has the effect that the recesses 43b, 43b ', 43b' ', 43b' '' of the locking elements 4b, 4b 'rest without play on the drive cams 22b, 22b', 22b '', 22b '', 22b '' 'of the driving wheel 2b.
  • the lash adjuster 5b has two inclined contact surfaces or wedge surfaces 51b, 51b ', - 52b, 52b' with which it can be attached to cylindrical arches 36b, 36b '; 37b, 37b 'of the output element 3b.
  • the spring 7b is arranged between the bent ends 55b, 55b 'of the lash adjuster 5b and an output claw 32b of the two output claws 31b, 32b of the output element 3b and is designed as a compression spring, so that the lash adjuster 5b between the cylindrical arches 36b, 36b'; 37b, 37b 'of the output element 3b and the expansion surfaces 41b, 41b' of the locking elements 4b, 4b 'is pressed, thus creating an elastic contact of the play compensation device 5b on the output element 3b on the one hand and the locking elements 4b, 4b' on the other.
  • the locking elements 4b, 4b ' are moved parallel to the outside by the play compensation device 5b, so that the clamping surfaces 42b, 42b', 42b '', 42b '''of the locking elements 4b, 4b' are pressed radially against the adjustment housing 10.
  • the angle between the inclined contact surfaces or wedge surfaces 51b, 51b ', 52b, 52b' of the lash adjuster 5b is chosen with respect to the axis of symmetry of the output element 3b so that the lash adjuster 5b does not yield under load, ie is displaced against the action of the spring 7b.
  • the play compensation between the drive element 2b designed as a driving wheel, the output element 3b and / or the load torque lock 1b takes place analogously to the exemplary embodiment according to FIG. 1 over large paths of the play compensation device 5b with small paths of the locking elements 4b, 4b '.
  • a torque introduced on the drive side via the driving wheel 2b leads to a slight rotation of the locking elements 4b, 4b 'due to the torque transmission from the drive cams 22b, 22b because of the force attack which is more circular and directed from the center of rotation ', 22b' ', 22b' '' of the driving wheel 2b onto the recesses 43b, 43b ', 43b' ', 43b' ' of the locking elements 4b, 4b 'and then after overcoming the distance between the drive cams 22b, 22b', 22b '', 22b '' 'and the recesses 43b, 43b', 43b '', 43b '', 43b '' ' 'for a positive connection between the claws 31b, 32b of the output element 3b and the window-like recesses 21b, 21b' of the driving wheel 2b and thus for the rotation of the driven element 3b.
  • a torque introduced on the output side via the output element 3b leads to the locking elements 4b, 4b 'being pushed apart due to the more central and radially directed force application of the output element 3b the force application of the cylindrical bulges 36b, 36b '; 37b, 37b 'of the output element 3b on the wedge surfaces 51b, 51b'; 52b, 52b 'of the play compensation device 5b and further over the rectilinear surfaces 54b, 54b', 54b '', 54b '', 54b ''of the play compensation device 5b on the spreading surfaces 41b, 41b' of the locking elements 4b, 4b ', which leads to a reinforcement of the system of the Clamping surfaces 42b, 42b ', 42b'',42b'' of the locking elements 5b, 5b 'on the adjustment housing 10 and thus lead to a blocking of the torque introduced on the output side.
  • FIG. 3 corresponds to the adjusting device according to FIG. 2 with the proviso that the spreading surfaces 41c, 41c 'of the locking elements 4c, 4c' have beveled surfaces 411c, 411C, 412c, 412c ', on which corresponding wedge surfaces 51c, 51c'; 52c, 52c 'of the lash adjuster 5c, while a central section of the expansion elements 41c, 41c', which runs essentially parallel to the axis of symmetry of the output element 3c, bears against cylindrical arches 36c, 36c ', 37c, 37c' of the output element 3c.
  • a spring 7c designed as a compression spring is arranged between the one output claw 31c of the output element 3c and the angled ends 55c, 55c 'of the lash adjuster 5c and brings about an elastic contact of the wedge surfaces 51c, 51C; 52c, 52c 'of the play compensation device 5c on the associated beveled surfaces 411c, 411c', 412c, 412c 'of the locking elements 4c, 4c'.
  • All of the adjustment devices described above have the basic function in common, according to which the lock caused by the locking element is released when the drive torque acts in the direction of the output torque, but remains latently effective, so that an immediate lock occurs when the drive torque is canceled. If, on the other hand, the drive torque acts against the output torque, the lock is released and the drive torque is introduced into the output. The locking element is lifted or rotated slightly and then immediately re-attached to the adjustment housing.
  • the locking element surfaces become by the wedge surfaces of a lash adjuster resting on the output element and / or on the locking elements in connection with the pretensioning force of a spring, which prestresses the lash adjuster perpendicular to the axis of the load torque lock in the direction of reducing the distance between the lash adjuster, the output element and the locking elements constantly brought into contact with the cylindrical adjustment housing, thus ensuring an optimal angle of play during commissioning and also after long use of the adjustment device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un dispositif de réglage servant à produire un mouvement rotatif, qui comprend un élément de sortie (3) à ajustage angulaire pour actionner un élément d'entraînement (2), un système de blocage de couple résistant (1), monté entre l'élément d'entraînement et l'élément de sortie (2,3), qui bloque par liaison de force un couple induit côté sortie et transmet à l'élément de sortie (3) un couple induit côté entraînement et présente des éléments de blocage (4,4') montés dans un boîtier de réglage (10) cylindrique. Les surfaces de serrage (43,43',43'',43''') desdits éléments de blocage sont séparées les unes des autres sous l'effet d'un dispositif disposé entre les surfaces d'écartement (41,41') opposées mutuellement et qui compense le jeu d'écart angulaire entre l'élément d'entraînement (2), l'élément d'entraînement (2), l'élément de sortie (3) et le système de blocage de couple résistant (1), avec une force d'une telle intensité qu'elles se trouvent sur le boîtier de réglage (10) avec une précontrainte prédéterminée. Le dispositif de compensation de jeu (5) sépare dans le sens radial l'un de l'autre les éléments de blocage perpendiculairement à l'axe du système de blocage de couple résistant (1), lesdits éléments de blocage étant placés dans un plan du système de blocage de couple résistant (1) pour les deux sens de rotation.
EP00987104A 1999-11-04 2000-11-03 Dispositif de reglage pour accouplement muni d'un systeme de blocage de couple resistant Withdrawn EP1230102A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19954232 1999-11-04
DE19954232A DE19954232C2 (de) 1999-11-04 1999-11-04 Verstellvorrichtung
PCT/DE2000/003935 WO2001032464A1 (fr) 1999-11-04 2000-11-03 Dispositif de reglage pour accouplement muni d'un systeme de blocage de couple resistant

Publications (1)

Publication Number Publication Date
EP1230102A1 true EP1230102A1 (fr) 2002-08-14

Family

ID=7928666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00987104A Withdrawn EP1230102A1 (fr) 1999-11-04 2000-11-03 Dispositif de reglage pour accouplement muni d'un systeme de blocage de couple resistant

Country Status (4)

Country Link
US (1) US6702089B1 (fr)
EP (1) EP1230102A1 (fr)
DE (1) DE19954232C2 (fr)
WO (1) WO2001032464A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19926994C2 (de) * 1999-06-08 2001-09-20 Brose Fahrzeugteile Verstellvorrichtung
DE10207850B4 (de) * 2002-02-18 2014-03-20 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Verstellvorrichtung
DE102004022134A1 (de) 2004-05-05 2005-12-01 Trw Automotive Gmbh Gurtaufroller für einen Fahrzeugsicherheitsgurt
DE102006052844A1 (de) * 2006-11-06 2008-05-08 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Beidseitig wirkender Antrieb für Verstelleinrichtungen in Kraftfahrzeugen
ES2319145B1 (es) * 2006-12-27 2009-12-11 Figueras International Seating, S.A. Sistema de giro automatico para asientos basculantes de sillas o butacas.
DE102009005044B4 (de) 2009-01-14 2025-10-02 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg Verstellvorrichtung zum Verstellen eines Fahrzeugsitzteils

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414095A (en) * 1966-12-29 1968-12-03 Formsprag Co Balanced bi-directional no-back drive mechanism
US3497044A (en) * 1967-08-14 1970-02-24 Formsprag Co Torque responsive brake with pivoted friction inserts
JPS59117922A (ja) 1982-12-26 1984-07-07 Aisin Seiki Co Ltd スプリングカツプラ装置
DE4120617C2 (de) * 1990-10-30 1994-06-01 Brose Fahrzeugteile Sperrkupplung mit einem abtriebsseitigen und einem antriebsseitigen Kupplungsabschnitt
DE19926994C2 (de) * 1999-06-08 2001-09-20 Brose Fahrzeugteile Verstellvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0132464A1 *

Also Published As

Publication number Publication date
US6702089B1 (en) 2004-03-09
WO2001032464A1 (fr) 2001-05-10
DE19954232A1 (de) 2001-06-28
DE19954232C2 (de) 2001-10-11

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