EP0655671B1 - Dispositif de pédale en particulier pour la commande de l'embrayage d'un voiture - Google Patents

Dispositif de pédale en particulier pour la commande de l'embrayage d'un voiture Download PDF

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Publication number
EP0655671B1
EP0655671B1 EP94111023A EP94111023A EP0655671B1 EP 0655671 B1 EP0655671 B1 EP 0655671B1 EP 94111023 A EP94111023 A EP 94111023A EP 94111023 A EP94111023 A EP 94111023A EP 0655671 B1 EP0655671 B1 EP 0655671B1
Authority
EP
European Patent Office
Prior art keywords
pedal
spring
bearing
leaf
spring leaf
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.)
Expired - Lifetime
Application number
EP94111023A
Other languages
German (de)
English (en)
Other versions
EP0655671A1 (fr
Inventor
Martin Brunner
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0655671A1 publication Critical patent/EP0655671A1/fr
Application granted granted Critical
Publication of EP0655671B1 publication Critical patent/EP0655671B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
    • G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
    • G05G7/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance altering the ratio of motion or force between controlling member and controlled member as a function of the position of the controlling member

Definitions

  • the invention relates to a pedal device, in particular for actuating a motor vehicle clutch, of the type mentioned in the preamble of claim 1, as is known for example from EP-A-0 480 602.
  • pedal devices are used in pedal devices in order to reduce the required pedal actuation forces after their so-called dead center has been exceeded.
  • the dead center spring is designed as a compression spring in the form of a helical spring mounted on a preferably telescopic guide rod (e.g. DE-C-29 23 027; DE-C-38 41 719)
  • pedal devices are also known (e.g. B. EP-A-0 480 602), in which a leaf spring arrangement is provided as an over-center spring.
  • This leaf spring arrangement preferably consists of a package of several stacked spring leaves, which are arranged exactly in the pivoting plane of the pedal and are firmly and rigidly clamped at one end in a mounting block which is fixed to the structure.
  • the pivotable pedal is supported with the roller-reinforced free end of an angled pedal arm on the leaf spring assembly, in the area of the free spring end.
  • the leaf spring assembly and pedal are designed and spatially aligned with one another such that the leaf spring assembly on the one hand on the pedal in its rest position supports this rest position Exerts spring force and on the other hand exerts a spring force supporting the actuation force when the pedal is actuated after exceeding a so-called dead center position still located in the vicinity of the pedal rest position.
  • This known arrangement is structurally and technically similarly complex and thus similarly expensive as known arrangements with helical compression springs mounted on telescopic guide rods.
  • a generic pedal device is known from FR-A-2 15 77 16.
  • This shows as a dead center spring a preloaded flat spring leaf which is designed and installed in the pedal device such that it is subjected to buckling.
  • a spring leaf is inexpensive to manufacture and, moreover, comparatively easy to assemble and disassemble.
  • the problem in the embodiment shown in FR-A-2 15 77 16, however, is the storage of the free spring leaf ends.
  • one of the free spring leaf ends is supported against the pedal via an additional eyelet. An additional assembly process is therefore necessary.
  • the spring leaf ends are angular and expose the opposite bearing surfaces to increased wear.
  • the invention has for its object to provide a pedal device of the type mentioned in the preambles of claims 1 and 2, which is structurally simple and is characterized by ease of installation and reliability.
  • the abutments receiving the free spring leaf ends are designed in such a way that they each have convex cylindrical surfaces oriented approximately parallel to the bearing axis of the pivotably mounted pedal.
  • concave bearing pans are formed at its free ends, the shape of which corresponds to the convex cylindrical surfaces.
  • the two abutments each have concave bearing pans oriented approximately parallel to the bearing axis.
  • its free ends are bent into convex cylindrical surfaces which correspond to the concave bearing pans.
  • a pedal for example the clutch pedal of a motor vehicle is pivotally mounted about a mounting axis 2 fixed.
  • the two spatial limit positions of the pedal are shown, namely once - fully extended - the pedal, which is numbered 1 as far as it will come to rest against a stop 11, and - shown in dashed lines - the pedal which is in its rest position and which is numbered 1 '
  • This leaf spring arrangement is designed as a simple flat spring leaf 3 of approximately C-shape, as can be seen in FIG. 2.
  • the effective spring force acting direction 13 ' which runs through the two abutments 4 and 5', runs below the fixed bearing axis 2 and, as desired, exerts a force holding the pedal in its rest position.
  • the articulated coupling of the C-shaped spring leaf 3 to the two abutments 4 and 5 takes place without spring eyes molded onto the spring ends.
  • concave bearing pans 8 and 9, respectively, are formed on the two free ends of the C-shaped flat spring leaf 3, with which the spring leaf is supported on corresponding convex cylinder surfaces 6 and 7 of the two abutments 4 and 5.
  • These cylinder surfaces 6, 7 are aligned parallel to one another and to the bearing axis 2 fixed to the body.
  • the built-in spring leaf 3 thus lies “loosely” between the two abutments 4, 5.
  • Fig. 3 contain the two abutments 4, 5 no convex cylindrical surfaces aligned parallel to the bearing axis 2, but rather concave bearing pans 14, 15 aligned approximately parallel to the bearing axis 2, in which the pretensioned flat spring leaf 3 is supported with its free ends in an articulated manner, for which purpose at the two free ends of the spring leaf Corresponding convex-cylindrical bearing surfaces are each arranged with these concave bearing pans 14, 15.
  • both abutments each with lateral bearing cheeks 10 in order to reliably prevent any possible slipping or wandering away of the spring leaf 3 during operation.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanical Operated Clutches (AREA)

Claims (5)

  1. Dispositif à pédale, en particulier pour actionner un embrayage de voiture automobile, avec une pédale (1), montée de façon à pouvoir pivoter autour d'un axe de palier (2) solidaire de la carrosserie, et avec un agencement de ressort à lame (3), précontraint, agissant comme ressort à dépassement du point mort, prenant appui à une extrémité sur la pédale (1) et à l'autre extrémité sur un piédroit (4), solidaire de la carrosserie, agencement de ressort qui est constitué comme une lame de ressort (3) plate, précontrainte, soumise à un flambage, qui prend appui respectivement de façon articulée par l'une de ses extrémités libres sur le piédroit (4), solidaire de la carrosserie, et par son autre extrémité libre sur un piédroit (5), situé du côté de la pédale,
    caractérisé en ce que
    les deux piédroits (4, 5) présentent des surfaces cylindriques (6, 7) convexes, orientées à peu près parallèlement à l'axe de palier (2), servant à l'appui direct de la lame de ressort précontrainte (3),
    et en ce que
    des cuvettes d'appui (8, 9) concaves, correspondant respectivement aux deux extrémités libres de la lame de ressort (3), sont formées à ces deux extrémités.
  2. Dispositif à pédale, en particulier pour actionner un embrayage de voiture automobile, avec une pédale (1), montée de façon à pouvoir pivoter autour d'un axe de palier (2) solidaire de la carrosserie, et avec un agencement de ressort à lame (3), précontraint, agissant comme ressort à dépassement du point mort, prenant appui à une extrémité sur la pédale (1) et à l'autre extrémité sur un piédroit (4), solidaire de la carrosserie, agencement de ressort qui est constitué comme une lame de ressort (3) plate, précontrainte, soumise à un flambage, qui prend appui respectivement de façon articulée par l'une de ses extrémités libres sur le piédroit (4), solidaire de la carrosserie, et par son autre extrémité libre sur un piédroit (5), situé du côté de la pédale,
    caractérisé en ce que
    les deux piédroits (4, 5) présentent des cuvettes d'appui (14, 15) concaves, respectivement orientées à peu près parallèlement à l'axe de palier (2), pour l'appui direct de la lame de ressort précontrainte (3), les deux extrémités libres de la lame de ressort (3) étant elles-mêmes coudées pour former des surfaces d'appui (16, 17) cylindriques, convexes, qui correspondent aux cuvettes d'appui concaves.
  3. Dispositif à pédale, selon la revendication 2,
    caractérisé en ce que
    les extrémités libres de la lame de ressort (3) portent des galets en matière plastique (15, 19) cylindriques, qui correspondent aux cuvettes d'appui concaves (14, 15).
  4. Dispositif à pédale, selon la revendication 3,
    caractérisé en ce que
    les galets en matière plastique présentent une fente longitudinale et sont enfilés sur les extrémités libres de la lame de ressort (3).
  5. Dispositif à pédale, selon l'une des revendications 1 à 4,
    caractérisé en ce qu'
    au moins l'un des deux piédroits (4, 5) présente des joues d'appui latérales (10), servant à empêcher un glissement ou un écartement latéral de la lame de ressort (3).
EP94111023A 1993-11-26 1994-07-15 Dispositif de pédale en particulier pour la commande de l'embrayage d'un voiture Expired - Lifetime EP0655671B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4340357 1993-11-26
DE4340357 1993-11-26
DE4402742 1994-01-28
DE4402742 1994-01-28

Publications (2)

Publication Number Publication Date
EP0655671A1 EP0655671A1 (fr) 1995-05-31
EP0655671B1 true EP0655671B1 (fr) 1997-09-10

Family

ID=25931564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111023A Expired - Lifetime EP0655671B1 (fr) 1993-11-26 1994-07-15 Dispositif de pédale en particulier pour la commande de l'embrayage d'un voiture

Country Status (3)

Country Link
EP (1) EP0655671B1 (fr)
DE (1) DE59404022D1 (fr)
ES (1) ES2107092T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536606A1 (de) * 1995-09-30 1997-04-03 Bosch Gmbh Robert Fahrpedalmodul
DE19536605A1 (de) * 1995-09-30 1997-04-03 Bosch Gmbh Robert Fahrpedalmodul
ITTO20040131A1 (it) * 2004-03-02 2004-06-02 Cnh Italia Spa Leva bistabile dotata di due posizioni terminali stabili passando per una posizione intermedia instabile
FR2924645A3 (fr) * 2007-12-10 2009-06-12 Renault Sas Dispositif d'assistance a l'actionnement d'une pedale d'embrayage.
KR101612371B1 (ko) * 2014-12-02 2016-04-15 현대자동차주식회사 클러치 페달 답력 저감 구조

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157716B1 (fr) * 1971-10-28 1974-06-21 Peugeot & Renault
JPS58218428A (ja) * 1982-06-11 1983-12-19 Nissan Motor Co Ltd クラツチペダルの踏力軽減装置
JPS5911926A (ja) * 1982-07-09 1984-01-21 Fuji Kiko Co Ltd クラツチペダル踏力軽減装置

Also Published As

Publication number Publication date
EP0655671A1 (fr) 1995-05-31
DE59404022D1 (de) 1997-10-16
ES2107092T3 (es) 1997-11-16

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