EP0997805A2 - Fusspedal - Google Patents

Fusspedal Download PDF

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Publication number
EP0997805A2
EP0997805A2 EP99306772A EP99306772A EP0997805A2 EP 0997805 A2 EP0997805 A2 EP 0997805A2 EP 99306772 A EP99306772 A EP 99306772A EP 99306772 A EP99306772 A EP 99306772A EP 0997805 A2 EP0997805 A2 EP 0997805A2
Authority
EP
European Patent Office
Prior art keywords
generally
foot pedal
vehicle
pedal
foot
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Withdrawn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
EP99306772A
Other languages
English (en)
French (fr)
Other versions
EP0997805A3 (de
Inventor
Sylvain Cospin
Pascal Collignon
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.)
Laird Holdings Ltd
Original Assignee
Draftex Industries Ltd
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 Draftex Industries Ltd filed Critical Draftex Industries Ltd
Publication of EP0997805A2 publication Critical patent/EP0997805A2/de
Publication of EP0997805A3 publication Critical patent/EP0997805A3/de
Withdrawn legal-status Critical Current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

Definitions

  • This invention relates to a foot pedal for operating a mechanism of a vehicle comprising a first generally elongate member having a foot plate at one end and being adapted for pivotable mounting on the vehicle generally at its other end and a second generally elongate member extending from the first member, the second member being adapted generally at its distal end for pivotable mounting on the vehicle at a position spaced apart along a common axis from the pivotably mountable end of the first member.
  • the vehicle mechanism is a clutch mechanism or braking system.
  • This type of foot pedal is known from US-A-5416295.
  • This document describes a pedal bracket assembly for use in a drive-by-wire control arrangement.
  • the bracket assembly is constructed using a plurality of washers, springs and also electrical transducers.
  • the object is to simulate the feel of a Bowden cable connection with a mechanism to be controlled.
  • This document also discloses a foot pedal for use with the pedal bracket assembly, and which has a pivotable foot plate.
  • the known pedal is characterised by the foot plate being formed integrally with the first member.
  • pedals of this type have traditionally been constructed using forging and welding techniques or have been pressed from sheet metal. Examples of the latter type are described in FR-A-2506971.
  • a method of manufacturing a foot pedal for controlling a mechanism of a vehicle characterised by the steps of cutting a metallic sheet to form a generally planar bifurcated blank of predetermined outline having an elongate common part before the bifurcation and two elongate branch members beyond the bifurcation, folding the common part of the blank generally along its major axis to form a main member of generally U-shaped cross-section, folding at least one of the branch members so that the distal ends of the branch members are separated in a direction generally transverse the said major axis and adapting the said distal ends to be pivotably mounted on the vehicle.
  • the prior art pedal has a foot plate 10 attached to a pressed metallic arm 12.
  • the arm includes a cylindrical bearing 14 which permits the pedal to be pivotally mounted.
  • a hole 16 is provided which allows a cable such as a clutch cable to be attached to the pedal.
  • This type of pedal is formed by pressing from sheet metal.
  • this type of pedal is expensive to manufacture since it must be constructed from thick material in order to avoid unacceptable deformation in use. Furthermore, as a result of the thickness of the material, this type of pedal is fragile and liable to fatigue failure.
  • the prior art pedal of Figure 3 comprises an elongate first member 20 which carries a foot plate 22 at one end.
  • the first member 20 is pivotally mounted on a pivot tube 26.
  • a second member 24 is also pivotally mounted on the pivot tube 26 and the two members 20 and 24 are connected together in the region of their pivotal mounting.
  • a hole 28 is formed at the distal end of the second member 24, a hole 28 is formed.
  • the hole 28 is arranged to be coupled, for example, to a clutch cable.
  • both members extend generally in the same direction from the pivot tube 26 but since the second member 24 is shorter than the first member 20, the hole 28 is positioned generally radially between the foot plate 22 and the pivot tube 26.
  • the arrangement provides a mechanical advantage.
  • Figure 4 shows a modification of the arrangement of Figure 3 which is intended for use where higher forces are applied to the foot pedal 22.
  • the first member 20A is modified to be fixed directly to the pivot tube 26A.
  • the second member 24A is fixed directly to the pivot tube 26A.
  • pivot tube 26A allows twisting to occur between the two members 20A and 24A. This is undesirable and the arrangement of Figure 4 is unsuitable particularly where small forces are applied to the pedal plate 22, since movement of the foot pedal 22 due to small forces will largely be absorbed by the elasticity of the pivot tube 26A.
  • one embodiment of the invention has a generally elongate member having a foot plate 38 at one end of a common portion 40. At the other end of the common portion 40 is a bifurcation A from which branches 42 and 44 extend.
  • the distal ends of the branches 42 and 44 are fixed to a pivot tube 45 which may be pivotally mounted on a vehicle.
  • a hole 47 is formed in the branch 44 for coupling to a mechanism such as a brake or clutch mechanism of a vehicle.
  • the coupling typically will be achieved via a cable or a hydraulic system (not shown).
  • the arrangement of Figure 5 may conveniently be pressed out of a single sheet of metal.
  • the common portion of the pedal 40 may conveniently have a U-shaped or generally U-shaped section as shown in Figure 5A.
  • the two branches 42 and 44 which are formed by the division in the region A may be formed of a single thickness of the material used to form the common portion 40.
  • the section of these branches may be flat or curved as shown in Figure 5B.
  • the cranked portion of the branch 44 may also incorporate a flap 46 which may be used to operate a switch such as a brake light switch.
  • the space delimited by the branches 42 and 44 and the pivot tube 45 conveniently allows the passage of another vehicle control such as a steering column. However, this space is provided without compromising the rigidity and therefore functionality, of the pedal.
  • Figure 6 shows an alternative embodiment of Figure 5 in which the pivot tube 45 is omitted.
  • the pedal of Figure 6 is typically mounted to a vehicle using two half-axles (not shown) of a similar form to the pivot tube 45 but divided into two pieces generally midway between the pivot holes 50 and 52. This arrangement allows, for example, a steering column to pass upwards out of the space between the branches 42 and 44 during a crash.
  • Figure 7 shows the pedal of Figure 5 or Figure 6 as a flat blank prior to being pressed into shape.
  • the reference numerals used in Figure 7 are those used for the corresponding component shown in Figure 6.
  • the blank is folded generally along the line 48.
  • the foot plate 22 is also formed by folding and thus is also an integral part of the blank.
  • Figure 8 shows an alternative form of the pedal of Figure 6.
  • section lines 60 The sectional shape of various portions of the pedal are shown by section lines 60. It will be appreciated that the sectional shape of the pedal will vary according to application.
  • This pedal also may be formed by pressing from sheet metal.
  • This construction has the advantage of added rigidity over that shown in Figure 6. This may be enhanced by the inclusion of so called “bananas” which are grooves running generally along the top surface 62 of the pedal, and so called “bulldozers” which are grooves running generally horizontally around the corners of the pedal (for example around corner 64).
  • the folded over sides forming the vertical walls leading up to the top face 62 also greatly enhance the rigidity and strength of the pedal. This allows the pivot tube 45 to be omitted with the consequent advantages described above in connection with the pedal of Figure 6.
  • the inherent rigidity of the construction also allows the thickness of the material from which the pedal is constructed to be reduced. This reduces the cost of the pedal.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Braking Elements And Transmission Devices (AREA)
EP99306772A 1998-10-30 1999-08-26 Fusspedal Withdrawn EP0997805A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9823849 1998-10-30
GB9823849A GB2343238A (en) 1998-10-30 1998-10-30 Foot pedals

Publications (2)

Publication Number Publication Date
EP0997805A2 true EP0997805A2 (de) 2000-05-03
EP0997805A3 EP0997805A3 (de) 2002-01-09

Family

ID=10841622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99306772A Withdrawn EP0997805A3 (de) 1998-10-30 1999-08-26 Fusspedal

Country Status (2)

Country Link
EP (1) EP0997805A3 (de)
GB (1) GB2343238A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004031880A1 (de) * 2002-09-27 2004-04-15 EDSCHA Betätigungssysteme GmbH Pedal
FR2990911A3 (fr) * 2012-05-25 2013-11-29 Renault Sas Pedale de frein et vehicule automobile comprenant une telle pedale de frein
DE102013218195A1 (de) * 2013-09-11 2015-03-12 Volkswagen Ag Pedalhebel, Fahrzeug mit einem derartigen Pedalhebel und Verfahren zur Herstellung eines Pedalhebels
WO2016097506A1 (fr) * 2014-12-18 2016-06-23 Renault S.A.S. Systeme de freinage d'un vehicule

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506971A1 (fr) 1981-05-26 1982-12-03 Laprade Usines Sa Perfectionnements aux pedales de frein et de debrayage en tole decoupee et emboutie
US5416295A (en) 1992-12-18 1995-05-16 Cts Corporation Combined pedal force switch and position sensor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779209A (en) * 1952-11-01 1957-01-29 Gen Motors Corp Brake control
US3744340A (en) * 1972-04-10 1973-07-10 Gen Motors Corp Stamped brake pedal
US4130027A (en) * 1976-06-04 1978-12-19 Betty Leighton Resilient lever assembly
US4802381A (en) * 1987-03-18 1989-02-07 Lo Nsin Hsin Compound acceleration-brake pedal assembly
GB2251288A (en) * 1990-12-28 1992-07-01 Ford Motor Co Lever, eg.pedal, operating machanism for hydraulic cylinder, eg. vehicle clutch or brake master cylinder.
DE4305629A1 (de) * 1993-02-24 1994-08-25 Teves Gmbh Alfred Betätigungseinheit für eine Kraftfahrzeugbremsanlage
CA2236179C (en) * 1997-04-30 2005-09-20 Ventra Group, Inc. Pedal arm assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506971A1 (fr) 1981-05-26 1982-12-03 Laprade Usines Sa Perfectionnements aux pedales de frein et de debrayage en tole decoupee et emboutie
US5416295A (en) 1992-12-18 1995-05-16 Cts Corporation Combined pedal force switch and position sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004031880A1 (de) * 2002-09-27 2004-04-15 EDSCHA Betätigungssysteme GmbH Pedal
FR2990911A3 (fr) * 2012-05-25 2013-11-29 Renault Sas Pedale de frein et vehicule automobile comprenant une telle pedale de frein
DE102013218195A1 (de) * 2013-09-11 2015-03-12 Volkswagen Ag Pedalhebel, Fahrzeug mit einem derartigen Pedalhebel und Verfahren zur Herstellung eines Pedalhebels
WO2016097506A1 (fr) * 2014-12-18 2016-06-23 Renault S.A.S. Systeme de freinage d'un vehicule
FR3030418A1 (fr) * 2014-12-18 2016-06-24 Renault Sa Systeme de freinage d'un vehicule

Also Published As

Publication number Publication date
GB2343238A (en) 2000-05-03
GB9823849D0 (en) 1998-12-23
EP0997805A3 (de) 2002-01-09

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