KR20100014222A - Brake or clutch pedal for a motor vehicle - Google Patents

Abstract

A brake or clutch pedal comprising a first member (2) adapted at one end as a shoe (10), a second member (3) hinged to a support part (5) and connected to the first member (2) through at least one first connection element (11), and a means for disconnection (6) of the connection between the first member (6) and the second member (3). The disconnection means (6) is a cam (6) hinged to the second member 93) through a pivotable joint (13) and hinged to the first member (2) through the first connection element (11), such that when a frontal collision occurs, an undeformable element (8) of the vehicle comes into contact with an end (6c) of the cam causing said cam (6) to turn and displace the first connection element (11) until the second member (3) is released from the first member (2).

Description

BRAKE OR CLUTCH PEDAL FOR A MOTOR VEHICLE}

The present invention relates to a vehicle brake or clutch pedal with an automatic release mechanism in the event of a frontal impact of sufficient force.

BACKGROUND Vehicle pedals with various safety mechanisms that operate alone in the event of a frontal collision are known. The function of the mechanism is to protect the lower limb of the vehicle driver, and therefore, in the case of a frontal collision, it is necessary to prevent the pedal from moving on a sharp or dangerous scale towards the driver.

In a frontal collision where the pedal could potentially cause injury, the wall to which the pedal is attached is deformed and the support structure of the pedal and the pedal itself are pushed towards the driver. In this situation, the safety mechanism must be activated to prevent the pedal from colliding with the lower limb of the driver.

By separating the pedal from the servo brake or clutch push rod, the pedal is automatically moved to the least injured position of the driver's lower extremity, or in the normal operation of the pedal, the pedal acts in a locking mechanism to release the pedal. Various alternative safety mechanisms are known.

US 6,889,575 B2 has two members, one of which is mounted to a pedal at one of its ends, and a second member connected to the first member and designed to articulate to one end of the pusher of the servo brake or clutch actuation mechanism. A vehicle comprising at least one pedal is included. The pedal includes a release lever for separating the connection between the pusher and the first and second members in the event of a frontal impact of sufficient force, as a result of which the second member and, therefore, the pedal and the pusher The articulation of the joint is neutralized. The release lever includes a groove having a narrow neck that is articulated with one of the members and extends into an extended area, and includes a portion of the vehicle designed for minimal deformation in the case of a frontal impact of sufficient size. The release lever is designed so that the release lever can rotate in contact with the release lever.

EP 1323602 A1 discloses a brake or clutch comprising two members, the first member comprising a shoe at its free end for the driver's foot and the second member articulated in such a manner that the second member is articulated to the support structure of the pedal. Start the pedal. The first member includes an extension on the opposite end of the shoe of the pedal, the extension having a slot connected to the cross pin, which pin moves through an open hole in the second member of the pedal. A lever is installed in the second member, one of the free ends of the lever is fork shaped, and the lever is also connected to the cross pin. In the normal operating state of the pedal, the pin is received simultaneously in the opening and the slot, and firmly connects the first member and the second member, while the fork on the pivot lever prevents the pin from moving. In the case of a frontal impact of sufficient force to cause deformation or displacement of the support structure of the pedal, the lever pivots and the lever moves, thereby displacing the pin in all the paths along the opening of the second member, as a result of which the pin Deviates from the slot of the first member, the first member pivots towards the support structure and moves away from the driver.

It is an object of the present invention to provide a brake or clutch pedal as defined in the claims.

The brake or pedal of the present invention has a first member, one end of which is mounted to a pedal shoe, articulated to a support of the pedal via a pivot shaft, and connected to the first member via at least one first connecting element, the servo brake or clutch In the case of a frontal impact of a second member designed to be connected to a push rod of a mechanism such as and a force sufficient to displace the support structure of the pedal until contact with a substantially non-deformable element of the vehicle, Means for separating the connection between the first member and the second member. According to the invention, in the normal operating state, the two members of the pedal together with the servo brake or clutch push rod rotate in coordination with the pedal, whereas in the case of the frontal collision, the substantially non-deformable element of the vehicle is on the separating means. In action, separates the portion of the pedal connected to the servo brake or clutch push rod from the portion of the pedal including the shoe on which the driver's foot is acting.

It is an object of the present invention to simplify the release mechanism, for which the pedal comprises a release means permanently connected to the first member of the pedal via the first connection element and the second member of the pedal via the pivot connection. Similarly, the second member of the pedal is temporarily connected with the first member of the pedal via the first connecting element, and in the case of a frontal collision, the substantially non-deformable element of the vehicle is in contact with the separating means, The pivoting connection rotates with respect to the second member, the rotation of the cam causing a corresponding displacement of the first connecting element and until the first member is released relative to the second member of the pedal. Causing a corresponding displacement of the first member of the pedal. In the present invention, there is no permanent direct connection between the first and second members of the pedal, except for the permanent connection made by the cam. Thus, this eliminates the need for a temporary connection between the first member and the second member via the first connection element, which is a connection that requires a high degree of precision, thereby enabling critical operation and thereby making the pedal easier to manufacture. Let's do it.

These and other features and advantages of the invention will be apparent in light of the description and drawings.

1 is a side view of an embodiment of the present invention in a normal operating state of a pedal;

FIG. 2 is a side view of the embodiment of FIG. 1 showing the arrangement of various elements of the present invention at the moment of release of the first member relative to the second member of the pedal during a frontal impact.

3 is a side view of the embodiment of FIG. 1 showing the arrangement of various elements of the invention after a frontal impact.

1 to 3, a vehicle comprising at least one brake or clutch pedal according to the invention comprises a wall separating an engine (not shown) in which the brake or clutch pedal 1 is accommodated from the driver's seat and the internal driver's seat. 4) and the support 5 of the pedal, the servo brake or the clutch, which is fixed to the wall 4 and to which the pivot shaft 7, around which the brake or clutch pedal 1 pivots, is fixed to the free end. A push rod 9 of the locking mechanism and at least one substantially non-deformable element 8 designed for minimal deformation in the event of a collision.

The brake or clutch pedal 1 is articulated to the support 5 via a pivot shaft 7 at one end, a first member 2 provided at the pedal shoe 10 at the free end, and at the opposite end the first. The first member in the case of a frontal collision, which is connected to the first member via a connecting element 11 and which causes a displacement or deformation of the second member 3 and the support 5 of the pedal, which are suitable for connection with the push rod 9. (2), separating means 6, such as a sliding cam, for separation between the second member 3 and the push rod 9.

In one embodiment, the first member 2, the second member 3 and the cam 6 are plates having a rectangular cross section, although any of these may be a substantially U-shaped cross section. The first member 2 is located between the cam 6 and the second member 3.

The first member 2 of the pedal is temporarily connected to the second member 3 of the pedal via the first connecting element 11 and the second connecting element 12. Both the first connection element 11 and the second connection element 12 are cylindrical pins attached to the first member 2 and the cam 6, respectively.

The cam 6 is permanently connected to the second member 3 via the pivotal connection 13 and to the second member of the pedal via the first connection element 11, so that the pivotal connection 13 is The cam 6 can be rotated with respect to the second member 3 of the pedal, and the first connecting element 11 can rotate the second member 3 of the pedal with respect to the cam 6. The pivotal connection 13 is substantially centered on the cam 6 and the first connecting element 11 is located at the end 6b of the cam 6. Between the pivotal connection 13 and the first connection element 11, the cam 6 is a recess suitable for receiving and displacing the second connection element 12 with respect to the second member 3 in the event of a frontal collision. (16). At the opposite end, the cam 6 comprises a projection 6c which forms a gap 6d designed to receive the rotational axis 7, whereby in the case of a frontal collision the projection 6c is the rotational axis 7. Hitting.

The second member 3 of the pedal comprises at its free end 3b a first housing 14 and a second housing 15 in which the first connecting element 11 and the second connecting element 12 are respectively received. do. Both the first and second housings 14 and 15 shown in FIGS. 2 and 3 are open grooves with strokes H1 and H2, respectively. Both the first connecting element 11 and the second connecting element 12 are riveted to the second member 3 of the pedal, whereby the cam 6 is connected to the pivoting connection 13 in the normal operating state of the pedal. Rotation is prevented, and as a result, in the state shown in FIG. 1, the cam 6 is attached to the first member 2 and the second member 3, and both the members 2, 3 are pivoted. It acts as a rigid pedal 1 which can rotate about the axis 7.

In the case of using a U-shaped cross section, the first connecting element 11 and the second connecting element 12 are riveted to both sides of the second member 3 of the pedal to form a sandwich.

In the case of a frontal impact of sufficient magnitude as shown in FIGS. 2 and 3, the wall 4 is displaced towards the driver's interior driver's seat along the entire structure of the pedal support. During the displacement, the substantially undeformed element 8 of the vehicle is in contact with the end 6c of the cam 6, so that the cam 6 is at an angle A relative to the second member 3. Cause rotation. The rotation of the cam 6 attached to the first member 2 via the first connecting element 11 is between the first connecting element 11, the second connecting element 12 and the second member 3. The first connecting element 11, respectively following the first housing 14 and the second housing 15, until the rivet coupling of the first housing 14 and the second housing 15 are released. ) And displacement of the second connecting element 12. In this position, the second member 3 with the push rod 9 is released from the first member 2, and the first member 2 is connected to the cam via the second connecting element 12. It can rotate freely about 6). In order to free the second member 3 from the first member 2, the stroke H1 of the first housing 14 and the stroke H2 of the second housing 15 have a cam 6 in the second member. When rotating by an angle A with respect to (3), it must be smaller than the respective displacement of the first connecting element 11 and the second connecting element 12.

Claims (12)

One end is articulated to the support 5 of the pedal via a first member 2, pivot shaft 7, which is installed on the pedal shoe 10, and through the at least one first connecting element 11, the first A second member 3 connected to the member 2 and a separating means 6 for separating the connection between the first member 2 and the second member 3 in the case of a frontal collision. In the vehicle brake or clutch pedal 1, the second member 3 is adapted to be connected to a push rod 9 of a mechanism such as a servo brake or a clutch. The separating means 6 is a sliding cam 6 articulated to the connecting shaft 3 via a pivotal connection 13 and articulated to the first member via the first connecting element 11, so that the front face In the case of a collision, the substantially undeformed element 8 of the vehicle is in contact with the end 6c of the cam 6, thereby rotating the rotation A of the cam 6 relative to the pivot connection 13. And, as a result, displace the first connecting element (11) until the second member (3) is released from the first member (2) of the pedal. The method of claim 1, In the normal operating state, the first connecting element 11 is arranged in the first housing 14 of the first member 2, the first connecting element 11 being the second member 3 of the pedal and A vehicle brake or clutch pedal attached to the first member (2). The method of claim 2, In the normal operating state, the connecting element (11) is a vehicle brake or clutch pedal riveted to the second member (3). The method of claim 2 or 3, The first housing (14) is a vehicle brake or clutch pedal. The method according to any one of claims 2 to 4, The pedal 1 comprises a second connecting element 12 inserted into the first member 2 of the pedal, which is arranged in the second housing 15 of the second member 3 in a normal operating state. And the second connecting element (12) is attached to the second member (3) and the first member (2) of the pedal. The method according to any one of claims 1 to 5, In the normal operating state, the second connecting element (12) is a vehicle brake or clutch pedal riveted to the second member (3). The method according to claim 5 or 6, The second housing (15) is an open groove for a vehicle brake or clutch pedal. The method according to any one of claims 5 to 7, The first and second housings 14 and 15 are connected to the first connecting element 11 and the connecting element during displacement caused by the rotation A of the cam 6 in the event of a frontal collision. A vehicle brake or clutch pedal each having a first stroke H1 and a second stroke H2 for guiding (12). 9. The connection element according to claim 1, wherein the guided strokes H1, H2 are driven by the rotation A of the cam 6. Vehicle brake or clutch pedal smaller than the angular displacement of 12. The method according to any one of claims 1 to 9, A brake or clutch pedal for a vehicle, wherein the first member (2), the second member (3) or the cam (6) of the pedal is a plate having a rectangular cross section. The method according to any one of claims 1 to 10, A brake or clutch pedal for a vehicle, wherein the first member (2), the second member (3) or the cam (6) of the pedal has a U-shaped cross section. 12. A vehicle comprising at least one pedal according to any one of the preceding claims.

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