EP0807041A1 - Dispositif de compensation pour systeme de freinage actionne par des cables - Google Patents

Dispositif de compensation pour systeme de freinage actionne par des cables

Info

Publication number
EP0807041A1
EP0807041A1 EP96937333A EP96937333A EP0807041A1 EP 0807041 A1 EP0807041 A1 EP 0807041A1 EP 96937333 A EP96937333 A EP 96937333A EP 96937333 A EP96937333 A EP 96937333A EP 0807041 A1 EP0807041 A1 EP 0807041A1
Authority
EP
European Patent Office
Prior art keywords
brake
compensating device
cable
inner cable
rack
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Withdrawn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
EP96937333A
Other languages
German (de)
English (en)
Inventor
Carmelo Gutierrez
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.)
Kuester and Co GmbH
Original Assignee
Kuester and Co GmbH
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
Priority claimed from DE19620941A external-priority patent/DE19620941C2/de
Application filed by Kuester and Co GmbH filed Critical Kuester and Co GmbH
Publication of EP0807041A1 publication Critical patent/EP0807041A1/fr
Withdrawn legal-status Critical Current

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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/04—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
    • B60T11/06—Equalising arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y10T74/20438—Single rotatable lever [e.g., for bicycle brake or derailleur]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20468—Sliding rod

Definitions

  • the invention relates to a compensating device for a brake system that can be operated with brake cables, in particular a hand brake system for motor vehicles, wherein an encoder, e.g. an operating lever, connected to a first brake via a first brake cable and a hose of the first brake cable supported on an encoder-side abutment and on the compensating device, and with a second brake cable, the inner cable of which is articulated at one end on the compensating device and at the other end connected to a second brake is.
  • an encoder e.g. an operating lever
  • the invention has for its object to develop a compensating device of the type mentioned in such a way that a reduced stroke of the transmitter, for example the actuating lever, is required to close the brakes.
  • the Compensating device also ensure an automatic length correction of the brake cables, in particular an automatic adjustment and readjustment of the length of the brake cables.
  • This main object of the invention is in the
  • the compensating device has a transmission gear and the first brake cable has a two-part inner cable, one inner cable at one end with the encoder and the other end with an input of the
  • Transmission gear and the other inner cable is connected at one end to an output of the transmission gear and at the other end to the first brake.
  • This compensation device has the advantage that only a reduced actuation stroke of the encoder is required to close the two brakes.
  • the compensating device according to the invention ensures that only a small actuation stroke of the transmitter is required to close the two brakes, it being possible to dispense with the laying of two separate brake cables between the transmitter and the respective brake.
  • the transmission gear has a gear which is displaceably guided in a recess of a housing of the compensating device and which is connected directly or indirectly via a guide piece or the like to the inner cable connected to the encoder.
  • the use of such a gear wheel connected to the inner cable provides the prerequisite for a structurally simple and uncomplicated construction of the transmission gear.
  • two racks are arranged on opposite sides of the gear, the teeth of which mesh with the teeth of the gear, the one rack being slidably mounted in the compensating device and connected to the inner cable leading to the first brake. If the encoder is now actuated and a tensile force is exerted on the inner cable on the encoder side, the gear meshes with the opposite racks. The displacement of the gearwheel and the rolling movement of the gearwheel result in a total retraction movement of the toothed rack connected to the brake-side inner cable with a stroke which is doubled in relation to the stroke of the sensor-side inner cable.
  • This movement of the inner cable on the sensor side also overlaps the movement of the compensation device as a result of the reaction force of the hose of the first brake cable. Compared to a fixed point on the vehicle, this results in an actuation path of the two brake-side inner cables corresponding to the actuation path of the sensor-side end cable, so that only half the stroke of the control lever or sensor is required in comparison to the conventional brake systems.
  • a compensation device with an automatic length correction of the brake cables in particular an automatic adjustment and readjustment of the length of the brake cables, in that the other rack against the effect of a bias, for example a tension spring, is slidably mounted on the housing of the compensation device.
  • a bias for example a tension spring
  • a compression spring can of course also be provided, which accordingly acts on the other end of the rack. Any rope loose in the braking system is removed by the pretension, which pulls or pushes the rack in the corresponding direction to shorten the effective length of the inner cables.
  • a ratchet is arranged between the rack and the housing to fix the rack when the transmitter is activated. If tensile forces are therefore transmitted to the brake-side inner cables via the gearbox, the locking mechanism ensures that the toothed rack is securely fixed when the encoder is actuated and cannot shift against the effect of the preload.
  • the locking mechanism is realized in that the toothed rack has a saw toothing which interacts with counter teeth on the housing.
  • the saw toothing and the counter toothing are designed or arranged in such a way that displacement of the toothed rack against the bias is reliably avoided.
  • a shifting of the rack in the opposite direction is easily possible due to the prestress to compensate for any loose parts in the system, since in this case the saw toothing and counter toothing can easily slide past one another without exerting a locking effect.
  • the rack is fixed in a delivery or pre-assembly state of the compensating device by means of a locking element or the like in such a position in which the tension spring is stretched to a maximum extent or a possibly . existing compression spring is compressed to a minimum.
  • a maximum protrusion of the inner cables from the respective guide hoses is realized, so that the inner cables can be easily mounted on the respective components, namely the transmitter or the brakes.
  • the locking element or the like is simply removed from the compensation device, which initiates an automatic initial adjustment of the length of the brake cables or inner cables.
  • the inner cables on the brake side are each at least partially received or guided in a hose, the inner cable for the second brake being articulated on the housing of the compensating device.
  • FIG. 1 shows a first exemplary embodiment of a brake system with the device according to the invention in a basic illustration
  • FIG. 2 shows a compensation device according to a first exemplary embodiment of the invention in the delivery state
  • FIG. 3 the compensation device of FIG. 2 after the initial setting and the transmitter that has not been activated
  • FIG. 4 the compensation device of FIG. 3 with the transmitter activated
  • FIG. 5 shows another embodiment of the compensating device according to the invention with activated transmitter
  • Figure 6 shows the compensation device of Figure 5 with the encoder deactivated.
  • the hand brake system according to FIG. 1 has an actuating lever 1 which, in the exemplary embodiment chosen here, is connected to the inner cable 3 of the brake cable 4 via a pull rod 2.
  • actuating lever 1 directly on the inner cable 3 of the brake cable
  • the brake cable 4 is articulated.
  • the brake cable 4 has an outer hose 5, in which the inner cable 3 is guided.
  • the outer hose 5 of the brake cable 4 is supported on the actuating lever end on an abutment 6 on the vehicle side. At the other end, the outer hose 5 is fixed to a housing 19 of a compensating device 7 and the inner cable 3a is guided to one brake 21 of the vehicle, a further hose 8 being provided for the deflection.
  • this brake system with the compensating device 7 according to the invention is such that when the actuating lever 1 is tightened, a tensile force is exerted on the inner cable 3 of the brake cable 4, as a result of which the inner cable 3 is pulled in the direction of the actuating lever 1 and the inner cable 3a closes first Brake 21 takes place.
  • the pulling movement exerted on the inner cable 3 results in a reaction force on the hose 5 in the opposite direction, as a result of which the compensating device 7 floating on the vehicle is displaced in the direction of arrow A and thus also the inner cable 9 of the brake cable 10 in this direction and a closing the second brake 22 takes place.
  • a compensation device 7 is provided, as is shown in different variants in detail in FIGS. 2 to 6.
  • An essential feature of this compensating device 7 is that the inner cable 3 is divided into two inner cables 3, 3a, the connection of the two inner cables 3, 3a being effected via a transmission gear 20 arranged in the compensating device 7.
  • the transmission gear 20 of the compensating device 7 has a gear
  • a guide piece 13 is provided, which is in the recess
  • the inner cable 3 is articulated at one end on the guide piece 13.
  • the toothed wheel 11 meshes with two toothed racks 14, 15 arranged in the compensating device 7 on opposite sides of the toothed wheel 11, the toothed rack 15 in the exemplary embodiment in FIGS. 5 and 6 being arranged in a stationary manner on the compensating device 7.
  • the opposite rack 14 is slidably mounted in the compensating device 7 or the recess 12 of the housing 19, the inner cable 3a being articulated at one end on one free end of the rack 14 as part of the inner cable 3.
  • the inner cable 9 of the brake cable 10 leading to the second brake 22 is fixedly arranged or articulated on the housing 19 of the compensating device 7.
  • Compensating device is thus a stroke of the inner cable 3 by the amount a into a stroke of the brake-side inner cables 3a, 9 each implemented by the amount a.
  • a brake system equipped with the compensation device according to the invention or the strokes of the inner cables behaves exactly like such a conventional brake system in which a separate brake cable is arranged between the two brakes 21, 22 and the actuating lever 1.
  • the compensation device 7 additionally has means for an automatic length compensation to compensate for any rope slack that may occur in the braking system or for an initial adjustment.
  • This length compensation is achieved in that the rack 15, which in the exemplary embodiment in FIGS. 5 and 6 is still firmly arranged on the compensating device 7, is now displaceably mounted within the compensating device 7 or the recess 12 of the housing 19, with a tension spring 16 placed on pretension one end of the rack 15 engages and is fixed at its other end to the housing 19 of the compensating device 7.
  • the toothed rack 15 has on the underside a saw toothing 17 which interacts with counter teeth 18 on the housing 19.
  • the saw toothing 17 and counter toothing 18 are designed or arranged in such a way that displacement of the toothed rack 15 against the bias of the tension spring 16 is prevented.
  • the rack 15 in the delivery state or a pre-assembly state of the brake system, the rack 15, as shown in Figure 2, is brought into a position in which the inner cables 3a, 9 and 3 have a maximum projection over the hoses 8, 10 and 5, so that a simple Mounting or hanging the free ends of the inner cables 3a, 9, 3 on the respective components, in particular the actuating lever 1 and the brakes 21, 22, is made possible.
  • the rack 15 in this pre-assembly position according to FIG. 2 can be fixed, for example, by a removable locking part.
  • Compensating device 7 attached, corresponding counter-toothing 18.
  • the engagement of this saw toothing 17 in the counter-toothing 18 prevents movement of the toothed rack 15 in a direction opposite to the arrow direction E, ie opposite to the prestressing of the toothed rack 15.
  • the gear 11 is rotated, as a result of which the second rack 14 is drawn into the compensating device 7.
  • the reaction of this retraction movement to the housing 19 of the compensating device 7 results in a compensating movement of the floating compensating device 7 in the direction E in the event that the inner cable 9 also has a rope loose, so that a pair of trousers is also removed from the system.
  • the toothed rack 15 is blocked by engaging the saw toothing in the counter toothing 17 with respect to a movement opposite to the direction of the arrow D, so that the already with respect to FIGS 6 described operation of the compensation device 7 occurs.
  • the toothed rack 15 can in fact be regarded as fixed in place or the housing 19 due to the interaction of the saw toothing 17 and counter toothing 18.
  • the modified embodiment in FIGS. 2 to 4 has the advantage of an automatic length compensation of the brake cables of the brake system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Flexible Shafts (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un dispositif de compensation (7) pour un système de freinage actionné par des câbles (4,10), notamment pour un système de frein à main pour véhicules automobiles. Un levier de commande (1) est raccordé à un premier frein (21) par un premier câble (4) et un tuyau flexible (5) du premier câble (4) s'appuie contre une butée (6) côté levier ainsi que sur le dispositif de compensation (7). Un second câble (10) possède un câble intérieur (9) dont une extrémité est articulée sur le dispositif de compensation (7) et l'autre extrémité est reliée à un second frein (22). Le dispositif de compensation (7) possède un multiplicateur (20) et le premier câble (4) un câble intérieur (3,3a) divisé en deux parties. Le premier câble intérieur (3) est relié par une extrémité au levier de commande (1) et par l'autre extrémité à une entrée du multiplicateur (20) tandis que l'autre câble intérieur (3a) est relié par une extrémité à une sortie du multiplicateur (20) et par l'autre extrémité au premier frein (21).
EP96937333A 1995-12-06 1996-11-02 Dispositif de compensation pour systeme de freinage actionne par des cables Withdrawn EP0807041A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19545395 1995-12-06
DE19545395 1995-12-06
DE19620941A DE19620941C2 (de) 1995-12-06 1996-05-24 Ausgleichsvorrichtung für ein mit Bremszügen betätigbares Bremssystem
DE19620941 1996-05-24
PCT/EP1996/004769 WO1997020719A1 (fr) 1995-12-06 1996-11-02 Dispositif de compensation pour systeme de freinage actionne par des cables

Publications (1)

Publication Number Publication Date
EP0807041A1 true EP0807041A1 (fr) 1997-11-19

Family

ID=26020968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96937333A Withdrawn EP0807041A1 (fr) 1995-12-06 1996-11-02 Dispositif de compensation pour systeme de freinage actionne par des cables

Country Status (4)

Country Link
US (1) US5878626A (fr)
EP (1) EP0807041A1 (fr)
JP (1) JPH11500085A (fr)
WO (1) WO1997020719A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW322458B (en) * 1997-05-10 1997-12-11 Chii-Chau Liaw Safety apparatus of brake of a bicycle
JP4694026B2 (ja) * 2000-05-11 2011-06-01 トヨタ自動車株式会社 駐車ブレーキ装置
US6634253B2 (en) * 2001-10-17 2003-10-21 David M Gioia Device and method for compensating for displacement variations between dissimilar gear shifting levers and derailleurs on a bicycle
KR100484320B1 (ko) * 2002-11-08 2005-04-20 경창산업주식회사 주차 브레이크 레버
US7350870B2 (en) * 2003-12-12 2008-04-01 Capro, Ltd. Integrated compensator module
DE102005042408A1 (de) * 2005-09-06 2007-03-08 Suspa Holding Gmbh Betätigungs-Vorrichtung und Verfahren zum Betätigen von Karosserie-Bauteilen eines Fahrzeuges
US20080244950A1 (en) * 2007-04-04 2008-10-09 Golden Edward R Picture Frame with Quick Release Back
TWM364652U (en) * 2009-03-10 2009-09-11 Wen-Chih Tseng Safety brake
CN108248587A (zh) * 2014-12-31 2018-07-06 吴杰 电动汽车的气压制动系统及其工作方法
US11215218B2 (en) * 2018-11-20 2022-01-04 Husqvarna Ab Cable accumulator
CN114684080B (zh) * 2022-04-21 2023-03-10 第一拖拉机股份有限公司 一种电动割草机的制动系统及其制动方法

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US2732723A (en) * 1956-01-31 Automatic stroke-changing apparatus
US1856670A (en) * 1929-07-30 1932-05-03 Taddeo Luigi Equalizing device for brakes
FR783722A (fr) * 1934-04-07 1935-07-18 Mécanisme de compensation pour frein sur les quatre roues, particulièrement d'automobiles et véhicules analogues
GB424814A (en) * 1934-08-25 1935-02-28 Charles Randall Little Flexible push-and-pull control mechanism
US2772574A (en) * 1952-12-22 1956-12-04 John V Thomas Stroke changing mechanism
US3180673A (en) * 1962-05-01 1965-04-27 Gen Motors Corp Vehicle closure
US3955658A (en) * 1974-11-18 1976-05-11 Bustmante Antonio B Brake controlled throttle holder
ES496087A0 (es) * 1979-10-19 1981-12-01 Bowden Controls Ltd Conjunto mecanico de control remoto
DE3409260A1 (de) * 1983-10-10 1985-04-11 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Bedieneinheit
US4787263A (en) * 1987-03-23 1988-11-29 Acco Babcock Inc. Automatic self-adjusting cable system
US4920819A (en) * 1988-03-04 1990-05-01 Nhk Morse Co., Ltd. Junction unit used in dual station system
DE3809949A1 (de) * 1988-03-24 1989-10-05 Webasto Ag Fahrzeugtechnik Vorrichtung zum antrieb eines drucksteif gefuehrten antriebskabels
US4887702A (en) * 1988-06-13 1989-12-19 United Technologies Automotive, Inc. Brake/shift interlock for an automatic transmission shift control mechanism
US5012689A (en) * 1989-10-04 1991-05-07 Smith Steven R Vehicle foot pedal actuator apparatus and method
DE4221728A1 (de) * 1992-07-02 1994-01-05 Fichtel & Sachs Ag Umlenker für Mehrgangnaben für Fahrräder oder dergleichen

Non-Patent Citations (1)

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Title
See references of WO9720719A1 *

Also Published As

Publication number Publication date
JPH11500085A (ja) 1999-01-06
WO1997020719A1 (fr) 1997-06-12
US5878626A (en) 1999-03-09

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