EP2048568A1 - Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme - Google Patents

Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme Download PDF

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Publication number
EP2048568A1
EP2048568A1 EP07380193A EP07380193A EP2048568A1 EP 2048568 A1 EP2048568 A1 EP 2048568A1 EP 07380193 A EP07380193 A EP 07380193A EP 07380193 A EP07380193 A EP 07380193A EP 2048568 A1 EP2048568 A1 EP 2048568A1
Authority
EP
European Patent Office
Prior art keywords
pedal
bearing
cross member
central cross
transmission rod
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Withdrawn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
EP07380193A
Other languages
German (de)
English (en)
Inventor
Gil Martins
Francois Darmon
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.)
Gestamp Vigo SA
Autotech Engineering SL
Original Assignee
Gestamp Vigo SA
Autotech Engineering SL
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 Gestamp Vigo SA, Autotech Engineering SL filed Critical Gestamp Vigo SA
Priority to EP07380193A priority Critical patent/EP2048568A1/fr
Publication of EP2048568A1 publication Critical patent/EP2048568A1/fr
Withdrawn legal-status Critical Current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
    • G05G1/34—Double foot controls, e.g. for instruction vehicles
    • 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
    • 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

  • a first aspect of the present invention relates to a pedal mechanism for automotive vehicles and a second aspect relates to an automotive vehicle comprising said mechanism, with an application in the mechanical industry, and preferably within the automotive field.
  • pedal mechanisms comprise, and more specifically in pedal mechanisms of right-hand drive vehicles in which a transfer is carried out by means of the transmission rod between one point in which the force is exerted by means of a pedal, for example a brake pedal, and a point in which a push rod is fixed, for example, for servo brake means.
  • Automotive vehicles existing today comprise pedal mechanisms which are located in the vehicle interior, usually in the driver's position, said pedals being configured to be actuated by the driver's feet.
  • One of the pedals in an automotive vehicle is a brake pedal which, by means of the actuation thereof, is configured to actuate the brake cylinder comprising a hydraulic system housed in a compartment of the engine of the vehicle.
  • a clutch pedal Another one of the pedals in a manual transmission automotive vehicle today is a clutch pedal, the actuation of which is similar to the actuation of the brake pedal, i.e. when the clutch pedal is actuated by the driver, it is configured to actuate a clutch cylinder also housed in the compartment of the engine.
  • the transmission of movement between each of said pedals and the corresponding brake or clutch cylinder is carried out by means of mechanisms comprising a transmission rod acting on the corresponding cylinder, transmitting thereto the movement received from the pedals when the driver acts thereon.
  • RHD right-hand drive
  • Pedal transmission mechanisms of this type of vehicles today comprise a link rod or push rod, which is a movement transfer element, which is fixed to the transmission rod, also referred to as the transfer or torsion rod, for the purpose of transmitting the actuation movement carried out by the driver when acting on the pedal, to the hydraulic system of the servo brake located in the area of the engine of the vehicle.
  • Figure 1 shows an exploded perspective view of a right-hand drive pedal mechanism existing today
  • Figure 3 shows a detail in perspective view of the area corresponding to the pedal in said mechanism, where the arrangement which allows a transfer of the movement of the pedal by means of the transmission rod between one point located on the right side on which the force is exerted, referred to as the leg, and one point located on the left side, engaging with the push rod, for example, of the servo brake, can be seen.
  • This transmission system involves the transmission rod being subjected to high torques, whereby requiring a very rigid support on the driver's side in the case of right-hand drive vehicles, or the teacher's side in the case of driving school vehicles.
  • the brake pedal is secured and borne by two bearings which, in turn, are anchored to the floor or board of the vehicle by means of a baseplate (A) which is the element providing rigidity to the mechanism in right-hand pedal mechanisms today.
  • the baseplate (A) which can be seen in Figure 2 in two perspective views, comprises marked and complex drawings. Said baseplate (A) is fixed or bound on the board of the vehicle, it is necessary to weld a support plate (B) on such board, said support plate consisting of a very thick part on which the transmission rod is supported, specifically by means of housing it in a support hole (B').
  • the baseplate (A) has to have a specific securing or binding area (D) on the board, for the purpose of transmitting to said board part of the stress it is subjected to, between which the fixing of the pedal is located, which is transmitted by its support bearings of the brake pedal, which are spot welded (6) on the baseplate (A), according to planes that are horizontal or parallel to the board.
  • a drawback of the aforementioned pedal mechanisms existing today is that given the design of the baseplate (A), complex drawing processes are required to manufacture them, making them very expensive since one part is obtained from working with a large amount of material.
  • the main drawback of this type of mechanisms is that the manufacture of the baseplate (A) is extremely complicated, resulting in high production costs. Furthermore, the connection between said baseplate (A) and the bearings of the brake pedal can be carried out by means of spot welding located in horizontal planes, i.e. essentially parallel to the board of the vehicle, whereby they are not strong enough, especially considering the shear stress the connection of said elements is subjected to.
  • a first aspect of the present invention relates to a pedal mechanism for automotive vehicles, which allows simplifying and reducing the costs of manufacturing the bearing and securing means for movement transmission rods in right-hand drive pedal mechanisms, i.e. in British-type mechanisms.
  • the pedal mechanism object of the invention comprises a transmission rod, also referred to as a transfer rod or torsion rod, which is configured to rotate with respect to a central axis of said transmission rod, any other degree of freedom being restricted.
  • Said transmission rod is fixed at a first end, located on the right side of the vehicle, to a leg, or point where the force is exerted, of a pedal, such as a brake pedal or a clutch pedal.
  • the transmission rod is fixed to a push rod, i.e. a link rod or transfer element, configured to carry out a pivoting movement with respect to the central axis when the pedal is actuated.
  • a push rod i.e. a link rod or transfer element
  • the direction of the push rod is selected in an operatively suitable manner according to the direction in which the movement of the pedal must be transmitted, said push rod, for example, possible being oriented parallel to the pedal, in the event that a transfer movement is required.
  • the pedal is borne or supported by a bearing and a supplementary bearing that it is located between.
  • the first end of the transmission rod is borne by a central cross member which is configured to bear and fix the bearing and the supplementary bearing of the pedal to a board of the pedals or of the automotive vehicle.
  • Said cross member is also configured to transmit to the board of the vehicle the normal stress received from the bearing and from the supplementary bearing, said central cross member being located between said bearings, which it is obviously fixed to.
  • the second end of the transmission rod is borne by a second support bearing, the push rod acting on the servo brake of the engine, or clutch, as the case may be, being fixed thereto.
  • the pedal mechanism proposed by the invention allows substantially reducing the price of said baseplate (A) and of the support plate (B), by means of integrating or unifying it in a single part, i.e. the central cross member, carrying out the functions of the other two parts, i.e. bearing a first end of the transmission rod and fixing the entire pedal mechanism to the board of the vehicle, transmitting to such board all the normal stress it receives.
  • the central cross member forming process is very simple and allows using materials with high elastic limit values, as well as very thick parts, because it does not require complex drawings as in the case of the baseplate of the mechanisms of the state of the art. Furthermore, the use of these materials allows dispensing with the specific securing or binding area (D) for the securing or binding to the board for the transfer rod, obtaining the same rigidity at a lower cost.
  • the central cross member is preferably U-shaped, having a central section which, when in the assembly position, has a horizontal orientation perpendicular to the bearings of the pedal, said central cross member have two vertical walls, one of said vertical walls having a hole configured to house the first end of the transmission rod.
  • the central cross member has two side flanges extending from the ends of the vertical walls according to planes parallel to the central section, said side flanges being configured to bear and fix the bearing and the supplementary bearing of the pedal to the board of the pedals, transmitting to such board all the normal stress it receives.
  • bearing and the supplementary bearing of the pedal are fixed to the central cross member in the vertical walls, preferably by means of spot welding or by means of any type of riveting, is contemplated.
  • the weld spots between the bearings of the pedal and the central cross member are in a vertical plane of the vehicle, i.e. working under shear stress, which improves the rigidity of the mechanism.
  • a second aspect of the present invention relates to an automotive vehicle comprising a pedal mechanism according to those described above in which the pedal is preferably a brake pedal, whereas the push rod is configured to transmit its pivoting movement with respect to the central axis to the engine of the vehicle.
  • the pedal mechanism for automotive vehicles and the automotive vehicle comprising said mechanism proposed by the invention is an advance in the mechanisms used until now and solves in a fully satisfactory manner the drawbacks set forth above along the lines of reducing manufacturing costs by replacing the baseplate with a less complex drawing part that can be folded into a U shape or profiled, whereby obtaining optimized cost of the assembly of the pedals as it requires one part less by unifying the functions of the baseplate and the support plate of the transmission rod.
  • the rigidity and the longitudinal strength of the mechanism are improved, since the central cross member is a very easy part to obtain which allows using very thick materials with a high elastic limit. Furthermore, the rigidity and the lateral strength are also improved given that the connection of the central cross member with the bearings of the pedal is carried out closer to the torsion axis of said bearings, likewise obtaining a weight reduction as a result of the foregoing, the thickness of elements can be reduced in order to obtain such elements with equivalent rigidity and strength.
  • the mechanism of the invention can further be adapted to the second support bearing located on the left side of the transmission rod.
  • the pedal mechanism for automotive vehicles comprises a transmission rod (1), configured to rotate with respect to a central axis (14) of said transmission rod (1), which is fixed at a first end (2) to a leg (6) of a pedal (7) and at a second end (3) to a push rod (8), as shown in Figure 1 .
  • the pedal (7) is located between a bearing (4) and a supplementary bearing (4') bearing said pedal (7).
  • the first end (2) of the transmission rod (1) is borne by a central cross member (9) which is configured to bear and fix the bearing (4) and the supplementary bearing (4') to a board of the pedals, not shown, said central cross member (9) being located between said bearings (4, 4').
  • the central cross member (9) is U-shaped, having a central section (11) which, when in the assembly position, shown in Figure 5 , is horizontal and perpendicular to the bearings (4, 4') of the pedal (7), said central cross member (9) having two vertical walls (12), one of said vertical walls (12) having a hole (10) configured to house the first end (2) of the transmission rod (1).
  • the bearing (4) and the supplementary bearing (4') of the pedal (7) are fixed by means of spot welding to the central cross member (9) in the vertical walls (12).
  • the central cross member (9) has two side flanges (13) extending from the ends of the vertical walls (12) according to planes parallel to the central section (11), said side flanges (13) being configured to bear and fix the bearing (4) and the supplementary bearing (4') of the pedal (7) to the board of the pedals.
  • a second aspect of the invention relates to an automotive vehicle comprising a pedal mechanism such as the one described above.

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  • 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)
  • Braking Elements And Transmission Devices (AREA)
EP07380193A 2007-06-29 2007-06-29 Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme Withdrawn EP2048568A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07380193A EP2048568A1 (fr) 2007-06-29 2007-06-29 Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07380193A EP2048568A1 (fr) 2007-06-29 2007-06-29 Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme

Publications (1)

Publication Number Publication Date
EP2048568A1 true EP2048568A1 (fr) 2009-04-15

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ID=38669087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07380193A Withdrawn EP2048568A1 (fr) 2007-06-29 2007-06-29 Mécanisme à pédale pour véhicules automobiles et véhicule automobile comportant un tel mécanisme

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EP (1) EP2048568A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980435A1 (fr) * 2011-09-22 2013-03-29 Peugeot Citroen Automobiles Sa Systeme de protection pour une barre de renvoi transversale d'un systeme de freinage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1269122A (en) * 1969-10-21 1972-04-06 C M I Products Ltd Improvements in or relating to dual pedal control apparatus for motor vehicles
GB2072595A (en) * 1980-03-25 1981-10-07 Cmi Products Ltd Dual pedal control apparatus for vehicles
GB2187541A (en) * 1986-03-04 1987-09-09 Honda Motor Co Ltd Pedal bracket assembly
FR2756645A1 (fr) * 1996-12-02 1998-06-05 Okey Sa Pedalier a double commande pour vehicule-ecole
EP1065114A1 (fr) * 1999-07-02 2001-01-03 Nissan Motor Company, Limited Assemblage d'une pédale de frein d'un véhicule
WO2004026650A1 (fr) * 2002-09-19 2004-04-01 Renault S.A.S. Dispositif de montage d'une pedale pour vehicule automobile
US20050166703A1 (en) * 2004-01-29 2005-08-04 Nebojsa Djordjevic Variable rate control pedal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1269122A (en) * 1969-10-21 1972-04-06 C M I Products Ltd Improvements in or relating to dual pedal control apparatus for motor vehicles
GB2072595A (en) * 1980-03-25 1981-10-07 Cmi Products Ltd Dual pedal control apparatus for vehicles
GB2187541A (en) * 1986-03-04 1987-09-09 Honda Motor Co Ltd Pedal bracket assembly
FR2756645A1 (fr) * 1996-12-02 1998-06-05 Okey Sa Pedalier a double commande pour vehicule-ecole
EP1065114A1 (fr) * 1999-07-02 2001-01-03 Nissan Motor Company, Limited Assemblage d'une pédale de frein d'un véhicule
WO2004026650A1 (fr) * 2002-09-19 2004-04-01 Renault S.A.S. Dispositif de montage d'une pedale pour vehicule automobile
US20050166703A1 (en) * 2004-01-29 2005-08-04 Nebojsa Djordjevic Variable rate control pedal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980435A1 (fr) * 2011-09-22 2013-03-29 Peugeot Citroen Automobiles Sa Systeme de protection pour une barre de renvoi transversale d'un systeme de freinage

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