KR200150617Y1 - A pedal-typed parking brake assembly - Google Patents

Abstract

The present invention is a brake pedal (23), which is rotatably mounted to the bracket (22) by a bracket (24), a shaft (24) fixed to a vehicle body (21) and formed of two members (22a, 22b), The parking brake cable 25 connected to the pedal, the sector member 27 fixed to the parking brake pedal 23 and the teeth 27a are formed, and the pole member 30 to which the teeth of the sector member 27 are engaged. Regarding the pedal-type parking brake device consisting of a ratchet mechanism 26, and a release cable 33 connected to the release lever 21 for releasing the pole member 30,

Each of the members 23a and 23b of the parking brake pedal 23 is formed with a guide groove 50 formed by cutting the receiving grooves 23c and 23d facing each other, and the guide groove 50 includes the pedal. Body 41 is inserted into the guide groove 50 so that the 23 can be rotated freely; A support rod 42 inserted through the central axis of the body 41 and having bolt portions 43 and 44 formed at both ends thereof and fixed to the bracket 22 by nuts 45 and 46; A support tube 47 extrapolated to a central portion of the body 41; And a spring 48 fixed at one end to the support tube 47 and at the other end to a fixing piece 49 fixed to the rear inner side of each pedal member 23a and 23b of the parking brake pedal 23. It is characterized in that the shock absorber 40 is configured to be inserted, the parking brake pedal is quickly and smoothly returned by the shock absorber, as well as to prevent damage to the pedal and peripheral parts, and also the return spring or There is no need to install a separate means such as a stopper to improve workability and reduce costs, as well as the effect that the exterior is kept compact.

Description

Pedal Parking Brake Device

The present invention relates to a pedal-type parking brake device, and more particularly, to a pedal-type parking brake device having a shock absorber having a shock absorbing function as well as preventing a quick and strong return of the pedal when the parking brake is released. .

Generally, a vehicle is provided with two kinds of brake devices, one of which is a general brake device for controlling or stopping the speed of the vehicle while the other is parked to keep the vehicle in a stopped state when stopped or parked. It is a brake device.

The parking brake device is called a "hand brake". The lever of the parking brake is exposed to the console box. When the lever is pulled, the braking force is transmitted to each wheel by the brake cable connected to the handle. Will remain stopped.

Recently, however, research and development of a pedal-type parking brake that can be mounted under the instrument panel as shown in FIG.

A general pedal parking brake apparatus has a bracket 2 fixed to a vehicle body 1, and a pedal 3 is rotatably mounted by a shaft 4 on the bracket 2. A pedal pad 3a is mounted at the lower end of the pedal 3, and the parking brake pedal 3 is connected to a brake device of a wheel (not shown) by the parking brake cable 5. Accordingly, when the pedal pad 3a is pressed, the parking brake pedal 3 is rotated clockwise with respect to the shaft 4, so that the parking brake control roller 5 is pulled upward by the parking brake pedal 3 so that the braking device It is activated and the parking brake is locked accordingly.

When the parking brake is locked by stepping on the pedal pad 3a, the return rotation of the parking brake pedal 3 is prevented by the ratchet mechanism 6, so that the locked state of the parking brake is retained. The ratchet mechanism 6 is attached to the bracket 2 by means of a shaft 8 and a metal sector member 7 fixed to the brake pedal 3, and the fastening piece 10a is connected to the sector member by a spring 9. It has the pawl member 10 which is rotated and matched by the tooth 7a of (7).

When the engagement between the pawl member 10 and the sector member 7 of the ratchet mechanism 6 is released, the bracket 3 is rotated counterclockwise with respect to the shaft 4, ie to release the parking brake. The release lever 11 is mounted to the shaft 2 by the shaft 12, and the release cable 13 is released by the release lever 11 to rotate the release lever 11 counterclockwise with respect to the shaft 12. Is connected to. When the release cable 13 is towed to the right and the release lever 11 is pivoted about the shaft 11 so that the bent portion 11a of the release lever 11 abuts against the pole member 10, the pole member ( The engagement between the pawl member 10 and the sector member 7 is released to rotate the shaft 10 relative to the shaft 8.

In addition, the parking brake pedal 3 and the vehicle body 1 are connected by a spring 14, and when the brake device is released by the release cable 13, the parking brake pedal 3 is rotated upward by the tension of the spring 14 to its original position. Return to.

When the parking brake is released, the parking brake pedal 3 is suddenly rotated upwards and the stopper 15 is provided to hit the vehicle body or hit a part of the driver's body to prevent damage to the body and human body. have.

However, even when the stopper 15 is installed to alleviate the impact force during the return rotation of the parking brake pedal 3 and to prevent the rotation of the brake range beyond the limit, the strong tension of the return spring 14 when the release cable 13 is released. By returning strongly and quickly, the parking brake pedal 3 hits or strikes the stopper 15 strongly, producing noise and causing mutual damage, and may injure the driver's body and cause injury. .

In addition, the stopper 15 is protruded to the outside of the vehicle body, there is a problem that interferes with the driver.

In particular, there is a disadvantage in that the cost and manpower is excessively consumed in forming and installing the return spring and the stopper, respectively.

The present invention is devised to solve such a problem, an object of the present invention is to provide a pedal-type parking brake device that can be quickly and smoothly returned to the pedal as well as to be able to be stopped in a flexible position.

Another object of the present invention is to provide a pedal-type parking brake device having a shock absorber capable of simultaneously providing a return force and a cushioning action to a pedal.

Still another object of the present invention is to provide a pedal-type parking brake device that directly and integrally installs a return / buffer device on a pedal, which not only reduces cost and manpower, but also causes interference to a driver by forming a compact exterior. It is.

Such objects are achieved by the present invention, according to one aspect of the present invention, a bracket fixed to a vehicle body, a brake pedal rotatably mounted to the bracket by a shaft and coupled to two members, and a parking associated with the pedal. A pedal-type parking brake comprising a brake cable, a ratchet mechanism fixed to the parking brake pedal and having a toothed portion, a ratchet mechanism composed of a metal pole to which the toothed portion of the sector member is joined, and a release cable connected to a release lever for releasing the pole. In the apparatus, each member of the parking brake pedal is formed with a guide groove formed in each of the receiving grooves facing each other, the guide groove, the guide groove, the body is inserted into the guide groove so that the pedal can rotate freely; A support rod inserted through the central axis of the body and having bolt portions at both ends thereof and fixed to the bracket by nuts; A support tube extrapolated to a central portion of the body; And

One end is fixed to the support tube and the other end is a spring is fixed to the fixing piece is fixed to the rear inner side of each pedal member of the parking brake pedal; characterized in that the shock absorber consisting of inserted.

According to another aspect of the present invention, the guide groove is characterized in that it has the same curvature as the rotational curvature of the parking brake pedal.

According to another aspect of the present invention, the body of the shock absorber is characterized in that formed of a cylindrical elastic material.

1 is a side view showing a general parking brake device.

Figure 2 is an exploded perspective view of the pedal showing in detail the shock absorber of the pedal-type parking brake device according to the present invention.

Figure 3 is a side view showing the operating state of the parking brake device according to the present invention.

* Explanation of symbols for the main parts of the drawings

21: body 40: shock absorber

41: body 42: support rod

47: support tube 48: spring

50: accommodation home

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view of a pedal showing the shock absorber of the parking brake device according to the present invention in detail, Figure 3 is a side view showing the operating state of the parking brake device according to the present invention.

2 and 3, the parking brake apparatus according to the present invention is basically a component as described above, that is, a bracket 22 fixed to the vehicle body 21, by the shaft 24 to the bracket 22 Brake pedal 23 that is rotatably mounted, a brake parking brake cable 25 connected to the pedal, a sector member 27 fixed to the parking brake pedal 23 and having teeth, and teeth of the sector member. Ratchet mechanism 26 consisting of a pawl member 30 to which the 27a is engaged, and a release cable 33 to which a release lever for releasing the pawl member 30 is connected, and the like, in particular the parking brake pedal The shock absorber 40 is linked to the 23.

In more detail, the parking brake pedal 23 of the parking brake apparatus according to the present invention is formed by being coupled to each other by the first member 23a and the second member 23b, and the respective members 23a and 23b. Receiving grooves (23c, 23d) are formed in each of the cutting grooves, the shock absorbing device 40 is inserted into the guide groove 50 formed by the respective receiving grooves (23c, 23d). In particular, the guide groove 50 preferably has the same curvature as the rotational curvature of the parking brake pedal 23 with respect to the shaft (24).

The shock absorber 40 will be described in detail and includes a cylindrical body 41 formed entirely of a shock absorbing material such as rubber and inserted laterally into the guide groove 50.

A support rod 42 is inserted into the central axis of the body 41 to maintain the rigidity as well as support the body 41.

Both ends of the support rod 42 are also provided with bolts 43 and 44, and nuts 45 and 46 can be fastened to the bolts 43 and 44, so that the shock absorber 40 itself is It may be bolted to the bracket 24.

In particular, a cylindrical support tube 47 is extrapolated to the central portion of the body 41, one end of the spring 48 is fixed to the support tube 47. In addition, a fixing piece 49 is provided at the other end of the spring 48. The fixing piece 49 is fixed to the rear inner surface of each of the members 23a and 23b of the parking brake pedal 23.

As such, when the shock absorber is interlocked and mounted on the parking brake pedal and the bracket, the spring 48 is compressed and maintained in the normal state of the parking brake pedal, that is, the parking brake release state, and the spring (48) in the locked state of the parking brake pedal. ) Is in the expanded state to maintain the tension state.

According to the operation mode of the pedal-type parking brake device according to the present invention, when the driver presses the parking brake pedal 23 to park the car, the parking brake pedal 23 is directed in the direction of an arrow A1 about the axis 24. Rotate to and at the same time the spring 48 of the shock absorber 40 is expanded.

After the brake pedal 23 is rotated to a certain range, that is, until the parking brake is sufficiently locked, the ratchet mechanism 26 and the fastening piece 30a of the pawl member 30 intermate with each other and at the same time the spring 48 The expanded state is maintained until this proper state.

When the release cable 33 is pulled to release the parking brake in the locked state of the parking brake, the engagement of the pole member 30 and the sector member 27 of the ratchet mechanism 26 is released by the release lever 31. At the same time, the parking brake pedal 23 is rotated by the spring 48 in the direction of the arrow A2 about the axis 24. At this time, the parking brake pedal 23 is quickly caused by the tension of the spring 48. It is rotated and returned.

This return rotation continues until the maximum compression state of the spring 48, in which case each pedal member of the parking brake pedal 23 even when the pedal 23 is suddenly and excessively rotated and returned to a range exceeding the prescribed range. Portions B of the receiving grooves 23c and 23d of the 23a and 23b contact or strike the body 41 of the shock absorber 40 fixed to the bracket 22. The body 41 is It is formed of a rubber material with elasticity so that it can be quickly returned to its original position and damage to the pedals will not occur.

As a result, according to the pedal-type parking brake device according to the present invention, the parking brake pedal can be quickly and smoothly returned by the shock absorber, and the damage of the pedal and the peripheral parts can be prevented.

In addition, since there is no need to install a separate means such as a return spring or stopper, the workability is improved, the cost is reduced, and the exterior is kept compact.

Although a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and variations can be made without departing from the scope of the appended claims.

Claims (3)

Bracket 22 fixed to the vehicle body 21, the brake pedal 23 is rotatably mounted to the bracket 22 by the shaft 24, coupled to the two pedals 22a, 22b, linked to the pedal The ratchet consists of a parking brake cable 25, a sector member 27 fixed to the parking brake pedal 23 and a tooth member 27a and a pole member 30 to which the tooth member of the sector member 27 is engaged. In the pedal-type parking brake device consisting of a mechanism 26, and a release cable 33 connected to the release lever 21 for releasing the pole member 30, Each of the members 23a and 23b of the parking brake pedal 23 is formed with guide grooves 50 formed by cutting opposing receiving grooves 23c and 23d, respectively, in the guide grooves 50, A body 41 inserted into the guide groove 50 so that the pedal 23 can rotate freely; A support rod 42 inserted through the central axis of the body 41 and having bolt portions 43 and 44 formed at both ends thereof and fixed to the bracket 22 by nuts 45 and 46; A support tube 47 extrapolated to a central portion of the body 41; And A spring 48 having one end fixed to the support tube 47 and the other end fixed to a fixing piece 49 fixed to the rear inner side of each pedal member 23a and 23b of the parking brake pedal 23; The pedal-type parking brake device, characterized in that the shock absorber 40 is configured to be inserted. 2. The pedal parking brake apparatus according to claim 1, wherein the guide groove (50) has the same curvature as the rotational curvature of the parking brake pedal (23). The pedal type parking brake apparatus according to claim 1, wherein the body (41) of the shock absorber (40) is formed of a cylindrical elastic material.