EP0919903A1 - Dispositif d'assistance pour l'actionnement d'un levier - Google Patents
Dispositif d'assistance pour l'actionnement d'un levier Download PDFInfo
- Publication number
- EP0919903A1 EP0919903A1 EP98402664A EP98402664A EP0919903A1 EP 0919903 A1 EP0919903 A1 EP 0919903A1 EP 98402664 A EP98402664 A EP 98402664A EP 98402664 A EP98402664 A EP 98402664A EP 0919903 A1 EP0919903 A1 EP 0919903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- axis
- profile
- assistance
- effort
- 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.)
- Granted
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce
-
- 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
- G05G1/44—Controlling members actuated by foot pivoting
Definitions
- the present invention relates to an assistance device for actuating a pivoting lever on a fixed axis.
- It relates, more particularly, to a device assistance for actuating a control lever at least one mechanical member of a motor vehicle, suitable to be pivoted on a fixed axis between a rest position and a active position so as to control, via in particular a cable, sliding in a sheath, one of which of the ends of the cable is connected to the lever and the other end being connected to the mechanical organ, the displacement of this latest.
- assistance devices including for clutch pedals, which consist of a tension spring, one of its ends connected to the pedal -or lever- and the other end is connected to a fixed point so that said spring exerts a force complementary to the maneuver or actuation effort of the the sink.
- Such devices only improve a specific range of the force exerted by the user on the lever to control the movement of the mechanical organs. So that the assistance curve does not does not correspond to the control force curve of the mechanical organs.
- the purpose of the present invention is to provide a assistance device for actuating a lever command that provides assistance on all points of the effort / displacement curve of the control lever, and which is simple to carry out.
- the subject of the present invention is a device assistance for actuating a lever pivoting around a fixed axis, under the action of a maneuvering force exerted by the user, between a rest position and a position active so as to transmit, notably through a cable, sliding in a sheath, one of the ends of the cable is connected to the lever and the other end is connected to at least one mechanical organ, an effort of control of said member, characterized in that the device is consisting of a profile integral with the lever and delimited by a angular sector centered on the axis which cooperates with a means of rolling able to move in a direction substantially perpendicular to the axis under the action of a means elastic when the lever is actuated, thus exerting a push on said lever to obtain a force additional to the maneuvering effort.
- Pedal 1 is connected to the clutch or to the braking via a cable 3 sliding in a sheath 4, one end of which is located towards pedal 1 is in support on a stop 5 fixed on the floor 6 of the vehicle automobile.
- This cable 3 is conventionally connected to the upper part 1c of pedal 1, considering figure 1, by one of its ends, which is provided with a tip 3b in order to secure the latter to pedal 1, in particular by jamming the nozzle 3b between two side walls 1d of the pedal 1 separated by a longitudinal groove to allow the cable passage 3.
- the fixed axis 2 is integral with two side walls 7 and 8 protruding from the floor 6 towards the pedal 1 forming thus a yoke for the support of the latter.
- the pedal 1 is provided with an assistance device, according to the present invention, for the actuation of this last.
- This assistance device consists of a profile 10 integral with pedal 1 and delimited by an angular sector ⁇ centered on the axis 2 which cooperates with a rolling means 11 able to move in a direction X-X 'substantially perpendicular to the pivot axis 2 under the action -or stress- of an elastic means 12.
- This profile 10 is produced by the edge of a cam 13, protruding from the pedal 1 on the floor side 6.
- This cam 13, as visible in figure 1, has a profile 10 with spokes any with respect to the center of axis 2, in the direction of actuation of the pedal 1 in the active position 1b.
- the rolling means 11 consists of a roller -or caster- 14 which is arranged in a yoke 15 consisting of two parallel branches 15a and 15b secured to a stud guide 16 and is fixed to the latter by means of an axis 17, parallel to the pivot axis 2, which passes through and on the other, the roller 14 and the branches 15a, 15b of the yoke 15.
- This axis 17 also crosses on both sides the side walls 7 and 8 of the pedal support clevis entering a light -or oblong hole- 7a, 8a, as visible in FIG. 2, made longitudinally, respectively in each of said walls, so as to guide the rolling means 11 secured to the stud 16 along a direction substantially perpendicular to the pivot axis 2.
- this axis 17 is held axially by via circlips 18, as visible in FIG. 2.
- the guide pad 16 consists of a part cylindrical 16b projecting from a vertical face 16a from the side opposite to the pedal 1 on which one of the ends of the elastic means 12, the other end taking support on a face 19 of the floor which is parallel to the face 16a of stud 16.
- This elastic means 12 consists of a spring with spirals which is compressed when mounting the guide pin 16, so that the rolling means 11 exerts a permanent contact with profile 10 -or slice-of the cam 13.
- this elastic means 12 is guided axially on the one hand, by a cylindrical part 20 projecting from the face 19 of the floor 6 on the side of the pedal 1, and other part, by the cylindrical part 16b of the guide pad 16.
- the profile 10 of the cam 13 will therefore be determined according to the additional effort or amount of assistance that we want to create so that it can have any shape.
- This additional effort is determined by the inclination of the tangent to the profile of the cam 13 at the point of contact between the roller and the cam moving the roller 14.
- the assistance device of the present invention can also be applied to a hand brake lever 21, as shown in Figure 3, pivoting on an axis 22 perpendicular to the longitudinal direction of the vehicle, between a rest position 21a and an active position 21b of way to transmit to braking devices, not shown, associated with the front or rear wheels of the vehicle, by means of a cable 23 sliding in a sheath 24, a clamping force when the lever 21 is in the active position 21b.
- One of the ends 23a of the cable 23 is connected, in known manner, using lever 21.
- the assistance device consists of a cam 13 secured to lever 21 which is delimited by a sector angular ⁇ 'centered on the pivot axis 22.
- This cam 13 is provided with a slice or profile 10 which cooperates in permanently with rolling means 11 able to move in a direction Y-Y 'substantially perpendicular to the axis 22 under the action of an elastic means 12 during actuation of the lever 21.
- This assistance device is housed in a recess 25 made in the floor 26, as visible in FIG. 3.
- the rolling means 11 consists of a roller -or caster- 14 which is arranged in a yoke 15 consisting of two parallel branches 15a and 15b secured to a stud guide 16 and is fixed to the latter by means of an axis 17, parallel to the pivot axis 22, which passes right through and on the other, the roller 14 and the branches 15a, 15b of the yoke 15.
- This axis 17 also crosses on both sides the side walls of the recess 25 by engaging in a light -or oblong hole- made in the direction Y-Y '.
- the guide pad 16 consists of a part cylindrical 16b projecting from a vertical face 16a from the side opposite the lever 21 on which one of the ends of the elastic means 12, the other end taking support on a face 28 of the floor 26 which is parallel to the face 16a of the pad 16.
- This elastic means 12 consists of a spring with spirals which is compressed when mounting the guide pin 16, so that the rolling means 11 exerts a permanent contact with profile 10 -or slice-of the cam 13.
- this elastic means is guided axially on the one hand, by a cylindrical part 29 projecting from the face 28 of the floor 26 on the side of the lever 21, and on the other hand, by the cylindrical part 16b of the guide pad 16.
- the assistive device of the present invention is particularly simple to make and that it allows to have a assistance, i.e. an additional effort defined according to a desired objective curve over the entire pivoting stroke of the the sink.
- such a device also allows a user to have less effort to provide when actuation of the lever.
- this assistance device can be applied to all control levers, by cable, by rod, hydraulic or other, mechanical parts.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Control Devices (AREA)
- Braking Elements And Transmission Devices (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
- le profil est réalisé par la tranche d'une came,
- la came possède un profil à rayons variables,
- le moyen de roulage est constitué d'un galet qui est disposé dans une chape constituée de deux branches parallèles solidaire d'un plot de guidage et est fixé à ce dernier par l'intermédiaire d'un axe, parallèle à l'axe de pivotement qui traverse de part et d'autre le galet et les branches de la chape,
- le moyen de roulage solidaire du plot de guidage est guidé suivant une direction sensiblement perpendiculaire à l'axe de pivotement par l'intermédiaire de l'axe qui s'engage dans des lumières réalisées longitudinalement dans des parois latérales parallèles aux branches de la chape,
- le moyen élastique est constitué d'un ressort à spirales qui est comprimé permettant au moyen de roulage d'exercer un contact permanent avec le profil.
- la figure 1 est une représentation schématique, en coupe longitudinale, d'une pédale d'embrayage ou de freins pourvue d'un dispositif d'assistance selon la présente invention,
- la figure 1a est une représentation schématique de l'effort d'assistance réalisé par le dispositif de la présente invention,
- la figure 2 est une vue en coupe, à plus grande échelle, suivant la ligne II-II de la figure 1, et
- la figure 3 est une représentation schématique, en coupe longitudinale, d'un frein à main pourvu d'un dispositif d'assistance selon la présente l'invention.
Claims (8)
- Dispositif d'assistance pour l'actionnement d'un levier (1; 21) pivotant autour d'un axe fixe, dit axe de pivotement (2; 22), sous l'action d'un effort de manoeuvre exercé par l'utilisateur, entre une position de repos (1a; 21a) et une position active (1b; 21b) de manière à transmettre, par l'intermédiaire notamment d'un câble (3; 23), coulissant dans une gaine (4; 24), dont l'une des extrémités du câble (3a; 23a) est reliée au levier (1; 21) et l'autre extrémité est reliée à au moins un organe mécanique, un effort de commande dudit organe, caractérisé en ce que le dispositif est constitué d'un profil (10) solidaire du levier (1; 21) et délimité par un secteur angulaire (∝; ∝') centré sur l'axe (2; 22) qui coopère avec un moyen de roulage (11) apte à se déplacer suivant une direction (X-X'; Y-Y') sensiblement perpendiculaire à l'axe (2; 22) sous l'action d'un moyen élastique (12), lors de l'actionnement du levier, exerçant ainsi une poussée sur ledit levier permettant d'obtenir un effort additionnel (F') à l'effort de manoeuvre (F).
- Dispositif selon la revendication 1, caractérisé en ce que le profil (10) est réalisé par la tranche d'une came (13).
- Dispositif selon la revendication 2, caractérisé en ce que la came (13) possède un profil (10) à rayons variables.
- Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le moyen de roulage (11) est constitué d'un galet (14) qui est disposé dans une chape (15) constituée de deux branches parallèles (15a et 15b) solidaire d'un plot de guidage (16) et est fixé à ce dernier par l'intermédiaire d'un axe (17), parallèle à l'axe de pivotement (2; 22) qui traverse de part et d'autre le galet (14) et les branches (15a et 15b) de la chape (15).
- Dispositif selon la revendication 4, caractérisé en ce que le moyen de roulage (11) solidaire du plot de guidage (16) est guidé suivant une direction sensiblement perpendiculaire à l'axe de pivotement (2; 22) par l'intermédiaire de l'axe (17) qui s'engage dans des lumières (7a, 8a; 27) réalisées longitudinalement dans des parois latérales parallèles aux branches (15, 15b) de la chape (15).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que le moyen élastique (12) est constitué d'un ressort à spirales qui est comprimé permettant au moyen de roulage (11) d'exercer un contact permanent avec le profil (10).
- Frein à main de véhicule automobile, caractérisé en ce qu'il comporte un dispositif d'assistance conforme aux revendications 1 à 4.
- Pédale de commande d'un embrayage ou d'organes de freinage caractérisé en ce qu'elle comporte un dispositif d'assistance conforme aux revendications 1 à 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9714931 | 1997-11-27 | ||
FR9714931A FR2771523B1 (fr) | 1997-11-27 | 1997-11-27 | Dispositif d'assistance pour l'actionnement d'un levier pivotant sur un axe fixe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0919903A1 true EP0919903A1 (fr) | 1999-06-02 |
EP0919903B1 EP0919903B1 (fr) | 2003-09-24 |
Family
ID=9513878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980402664 Expired - Lifetime EP0919903B1 (fr) | 1997-11-27 | 1998-10-27 | Dispositif d'assistance pour l'actionnement d'un levier |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0919903B1 (fr) |
DE (1) | DE69818400T2 (fr) |
ES (1) | ES2205415T3 (fr) |
FR (1) | FR2771523B1 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1562097A2 (fr) | 2004-02-09 | 2005-08-10 | Toyoda Iron Works Co., Ltd. | Dispositif de force de réaction pour pédale |
WO2006114075A1 (fr) * | 2005-04-28 | 2006-11-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Dispositif pour actionner un embrayage d'un vehicule |
US7503235B2 (en) * | 2004-05-14 | 2009-03-17 | Intier Automotive Closures Inc. | Pedal assembly |
FR2967270A1 (fr) * | 2010-11-08 | 2012-05-11 | Peugeot Citroen Automobiles Sa | Dispositif pour l'actionnement d'un levier pivotant autour d'un axe fixe |
FR2967224A1 (fr) * | 2010-11-08 | 2012-05-11 | Peugeot Citroen Automobiles Sa | Pedalier pour la commande d'embrayage d'un vehicule |
JP2013502344A (ja) * | 2009-08-18 | 2013-01-24 | ケイエスアール テクノロジーズ カンパニー | 非接触式センサを有するブレーキペダルアッセンブリ |
ES2415004R1 (es) * | 2012-01-18 | 2013-10-18 | Batz S Coop | Dispositivo de asistencia para el accionamiento de un pedal de un vehículo motor y pedal que comprende el dispositivo de asistencia |
CN104613100A (zh) * | 2015-01-18 | 2015-05-13 | 王楠 | 离合器操纵阻尼机构及采用该机构的离合拉索组件 |
CN110641277A (zh) * | 2018-06-26 | 2020-01-03 | 森源汽车股份有限公司 | 离合器踏板机构及车辆 |
CN111546885A (zh) * | 2019-02-12 | 2020-08-18 | 现代自动车株式会社 | 利用凸轮的离合器踏板力减小结构 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012005777A1 (de) * | 2012-03-21 | 2013-09-26 | Gm Global Technology Operations, Llc | Pedalvorrichtung, insbesondere zum Betätigen der Kupplung eines Kraftfahrzeuges, und Verfahren zum Betreiben der Pedalvorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR379873A (fr) * | 1907-07-12 | 1907-11-21 | Amedee Bollee Fils | Système de commande progressive des embrayages à friction également applicable à la commande des freins |
US2112607A (en) * | 1935-09-12 | 1938-03-29 | Frederick W Pooley | Lever mechanism |
DE3810591A1 (de) * | 1988-03-29 | 1989-10-12 | Audi Ag | Vorrichtung zur betaetigung des regelgliedes einer fahrzeug-brennkraftmaschine |
-
1997
- 1997-11-27 FR FR9714931A patent/FR2771523B1/fr not_active Expired - Fee Related
-
1998
- 1998-10-27 DE DE1998618400 patent/DE69818400T2/de not_active Expired - Fee Related
- 1998-10-27 EP EP19980402664 patent/EP0919903B1/fr not_active Expired - Lifetime
- 1998-10-27 ES ES98402664T patent/ES2205415T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR379873A (fr) * | 1907-07-12 | 1907-11-21 | Amedee Bollee Fils | Système de commande progressive des embrayages à friction également applicable à la commande des freins |
US2112607A (en) * | 1935-09-12 | 1938-03-29 | Frederick W Pooley | Lever mechanism |
DE3810591A1 (de) * | 1988-03-29 | 1989-10-12 | Audi Ag | Vorrichtung zur betaetigung des regelgliedes einer fahrzeug-brennkraftmaschine |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1562097A2 (fr) | 2004-02-09 | 2005-08-10 | Toyoda Iron Works Co., Ltd. | Dispositif de force de réaction pour pédale |
EP1562097A3 (fr) * | 2004-02-09 | 2005-09-28 | Toyoda Iron Works Co., Ltd. | Dispositif de force de réaction pour pédale |
US7228758B2 (en) | 2004-02-09 | 2007-06-12 | Toyoda Iron Works Co., Ltd. | Pedal reaction force device |
US7503235B2 (en) * | 2004-05-14 | 2009-03-17 | Intier Automotive Closures Inc. | Pedal assembly |
WO2006114075A1 (fr) * | 2005-04-28 | 2006-11-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Dispositif pour actionner un embrayage d'un vehicule |
JP2013502344A (ja) * | 2009-08-18 | 2013-01-24 | ケイエスアール テクノロジーズ カンパニー | 非接触式センサを有するブレーキペダルアッセンブリ |
FR2967270A1 (fr) * | 2010-11-08 | 2012-05-11 | Peugeot Citroen Automobiles Sa | Dispositif pour l'actionnement d'un levier pivotant autour d'un axe fixe |
FR2967224A1 (fr) * | 2010-11-08 | 2012-05-11 | Peugeot Citroen Automobiles Sa | Pedalier pour la commande d'embrayage d'un vehicule |
ES2415004R1 (es) * | 2012-01-18 | 2013-10-18 | Batz S Coop | Dispositivo de asistencia para el accionamiento de un pedal de un vehículo motor y pedal que comprende el dispositivo de asistencia |
CN104613100A (zh) * | 2015-01-18 | 2015-05-13 | 王楠 | 离合器操纵阻尼机构及采用该机构的离合拉索组件 |
CN110641277A (zh) * | 2018-06-26 | 2020-01-03 | 森源汽车股份有限公司 | 离合器踏板机构及车辆 |
CN111546885A (zh) * | 2019-02-12 | 2020-08-18 | 现代自动车株式会社 | 利用凸轮的离合器踏板力减小结构 |
Also Published As
Publication number | Publication date |
---|---|
EP0919903B1 (fr) | 2003-09-24 |
ES2205415T3 (es) | 2004-05-01 |
FR2771523B1 (fr) | 1999-12-31 |
DE69818400D1 (de) | 2003-10-30 |
FR2771523A1 (fr) | 1999-05-28 |
DE69818400T2 (de) | 2004-06-24 |
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