JP2518583Y2 - Foot type parking brake release device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot type parking brake releasing device.

[0002]

2. Description of the Related Art A conventional foot-type parking brake releasing device includes a lock release lever for releasing a lock state of a lock lever for locking a parking brake pedal at a depressed position, that is, an operating position, and an instrument panel. And a brake release lever which is slidably attached to the lower surface of the vehicle and is connected to the lock release lever for operating the lock release lever.

[0003]

However, since the brake release lever is designed so as not to project to the driver's side from the safety pad of the instrument panel so as not to damage the space under the driver's feet, the parking brake is not available. When releasing the lock of the brake pedal, the driver had to extend his hand and operate the brake release lever, which was very inconvenient.

In view of the above problems, the present invention provides a foot-type parking brake releasing device in which the releasing operation of the parking brake pedal is extremely easy and the space under the driver's feet is not impaired. Has an aim.

[0005]

In order to achieve the above object, a foot type parking brake releasing device according to the present invention is provided for releasing a locking state of a locking lever for locking a parking brake pedal at a depressed position. A foot-type parking brake release device comprising a lock release lever and a brake release lever slidably attached to a lower surface of an instrument panel and connected to the lock release lever, wherein the parking brake pedal and the brake are provided. The release lever is connected via a hydraulic device, and when the parking brake pedal is stepped on, the brake release lever can be slid to the driver's seat side within a range that does not reach the unlocked state. .

[0006]

According to the above construction, the brake release lever is moved to the driver's seat side when the locked state of the parking brake pedal, that is, the operating state is released, so that the driver can apply the brake without extending the hand. You can operate the release lever. Also, when the parking brake pedal is in the inoperative state, the brake release lever returns to the original position, that is, the position where it does not project to the driver's seat side from the safety pad of the instrument panel, so the space under the driver's feet is also impaired. Absent.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiment. FIG. 1 is a schematic sectional view of a foot type parking brake device including an embodiment of a foot type parking brake release device according to the present invention, and FIG. 2 is a perspective view showing a mounting position of a brake release lever of the above embodiment. As shown in FIG. 2, reference numeral 1 is a parking brake pedal which is pivotally attached to the back of the instrument panel 4 between a normal brake pedal 2 and a footrest 3. In FIG. 2, reference numeral 5 is an accelerator pedal.

Reference numeral 6 is a brake drum fixed to an axle (not shown), and 7 is a pair of brake drums arranged on the vehicle body side and normally urged by a spring 8 to a position where the brake drum 6 is not contacted. The brake lining 9 is a brake drive lever pivotally attached to the vehicle body side between the pair of brake linings 7 and connected to the brake pedal 1 via a brake wire 10 and having a return habit by a spring 11. Therefore, when the parking brake pedal 1 is stepped on, the brake drive lever 9 is turned clockwise in FIG. 1 via the brake wire 10 to press the pair of brake linings 7, 7 against the inner surface of the brake drum 6 to lock the axle. It is supposed to do. As will be described later, when the parking brake pedal 1 is released, the spring 11 causes the brake drive lever 9 to rotate counterclockwise in FIG. 1 so that the pair of brake linings 7 and 7 separate from the inner surface of the brake drum 6 and lock the axle. Is to be released.

Reference numeral 1a is an arc gear provided at an end of the parking brake pedal 1 opposite to the pedal 1b, and 12 is pivotally attached to the back of the instrument panel 4 and has one end 1
A locking lever having a rightward turning characteristic in FIG. 1 by a spring 13 so that 2a engages with the arc gear 1a,
The locking lever 12 locks the parking brake pedal 1 at the depressed position in a ratchet manner.

A bending portion 14a pivotally attached to the back portion of the instrument panel 4 and provided at a side edge of the instrument panel 4 can engage with an upper edge of the locking lever 12 as shown in FIG.
Is a lock release lever for rotating the lock lever 12 counterclockwise to release the lock state with respect to the parking brake pedal 1. Reference numeral 15 is a guide member fixed to the lower surface of the instrument panel 4 with bolts, nuts and the like, and 16 is a brake release that is slidably fitted in the guide member 15 and is connected to a lock release lever 14 via a wire 17. A lever, 18 is a spring wound around the wire 17 and imparts a habit of returning to the locking release lever (right habit), and 19 is stretched between the guide member 15 and the brake release lever 16. Brake release lever 1
6 is a spring that gives the habit of returning to 6 (the habit of moving to the left), and when the brake release lever 16 is pulled toward the driver's seat (rightward in FIG. 1) against the tension of the spring 19, the lock release lever is released. 14 is turned counterclockwise against the elasticity of the spring 18. Further, the brake release lever 16 normally does not project to the driver's seat side beyond the safety pad 4a of the instrument panel 4 so as not to damage the space under the driver's feet.

FIG. 3 is an exploded perspective view showing the detailed structure of the guide member 15 and the brake release lever 16, FIG. 4 is a sectional view taken along the line AA of FIG. 3, and FIG.
3 is a perspective view showing a part of the lower surface of FIG. As shown in these figures, the dovetail grooves 15a, 15a provided on both sides of the inner bottom portion of the guide member 15 are fitted with the dovetails 16a, 16a provided on both sides of the brake release lever 16. There is. The wire 17 passes through the groove 16b at the center of the lower surface of the brake release lever 16, and the fitting 17a fixed to the tip of the wire 17 has a hole 16 in the lower surface of the brake release lever 16.
The brake release lever 16 is connected by being fitted in c. Further, one end of the spring 19 is hooked in the hole 15b of the guide member 15 and the other end is hooked on the protrusion 16d on the lower surface of the brake release lever 16, so that the spring 19 is stretched between the members 15 and 16. Further, on the upper surface of the brake release lever 16, there is provided a protrusion 16e with which the tip of a rod of a piston described later is pressed.

Referring again to FIG. 1, reference numeral 20 is a first hydraulic cylinder mounted on the vehicle body, and the tip of the rod of the piston 21 fitted and inserted therein is connected to the parking brake pedal 1 by a pin-slot connection. Has been. Reference numeral 22 denotes a second hydraulic cylinder that is fixed to the bottom of the lower surface of the instrument panel 4 and is connected to the first hydraulic cylinder 20 via a hydraulic pipe 23. The second hydraulic cylinder 22 has a piston 24 fitted therein. The tip of the rod is pressed against the protrusion 16e of the brake release lever. And
When the parking brake pedal 1 is depressed, the piston 21 moves to the left and the movement is converted into the movement of the piston 24 to the right.
Is pushed rightward against the tension of the spring 19. When the parking brake pedal 1 is released, hydraulic pressure is not applied to the brake release lever 16, so the tension of the spring 19 causes the brake release lever 16 to move to the left, and the piston 24 moves to the left. Toward the right, the movement of the piston 21 changes to the right, and the piston 21 moves toward the parking brake pedal 1.
It is designed to follow the return of.

Since this embodiment is constructed as described above, when the parking brake pedal 1 is stepped on, the brake drive lever 9 is turned rightward in FIG. , 7 are pressed against the inner surface of the brake drum 6 to lock the axle, and the piston 21 moves leftward, which movement is converted to the rightward movement of the piston 24, which causes the brake release lever 16 to spring. It is pushed to the right against the tension of 19 and reaches the position shown by the chain double-dashed line, and the parking brake pedal 1 is locked by the locking lever 12 in the ratchet type depressed position. Therefore, since the brake release lever 16 moves to the driver's seat side, when the parking brake pedal 1 is released from the locked state, that is, the operating state next time, the driver releases the brake release lever 16 without extending the hand. Can be operated. At this time, the lock release lever 14 is the lock lever 12
Has not reached the position where it can be turned counterclockwise, that is, the unlocking position.

Next, the brake release lever 16 is moved to the spring 19
1 is pulled to the position shown by the dotted line in FIG. 1, the lock release lever 14 is turned counterclockwise through the wire 17 to the position shown by the dotted line in FIG. 1 against the elastic force of the spring 18. Then, the bent portion 14a of the lock release lever 14 engages with the upper edge of the lock lever 12 to rotate the lock lever 12 counterclockwise, so that the locked state with respect to the parking brake pedal 1 is released. Accordingly, the elastic force of the spring 11 causes the brake drive lever 9 to rotate counterclockwise in FIG. 1, the pair of brake linings 7 and 7 are separated from the inner surface of the brake drum 6, and the axle is unlocked. It is turned counterclockwise in FIG. 1 via 10 and is returned to its original position. Further, as the parking brake pedal 1 is turned counterclockwise, no hydraulic pressure is applied to the brake release lever 16, so that the spring 1
The brake release lever 16 moves leftward to the position shown by the solid line by the tension of 9, and the piston 24 moves leftward together therewith, and the movement is converted into the rightward movement of the piston 21, and the piston 21 moves the parking brake. Follow the return of pedal 1. Thus, when the parking brake pedal 1 is in the non-actuated state, the brake release lever 16 returns to the original position, that is, the position where it does not project to the driver's seat side from the safety pad 4a of the instrument panel 4, so that The space under your feet is not damaged.

[0015]

As described above, the foot type parking brake releasing device according to the present invention is very practical in that the operation of releasing the locking of the parking brake pedal is extremely easy and the space under the driver's feet is not impaired. Have advantages.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a foot type parking brake device including an embodiment of a foot type parking brake releasing device according to the present invention.

FIG. 2 is a perspective view showing a mounting position of a brake release lever of the above embodiment.

FIG. 3 is an exploded perspective view showing a detailed structure of a guide member and a brake release lever of the above embodiment.

4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a perspective view showing a part of the lower surface of the brake release lever of the above embodiment.

[Explanation of symbols]

 1 Parking Brake Pedal 6 Brake Drum 7 Brake Lining 9 Brake Drive Lever 10 Brake Wire 12 Lock Lever 14 Lock Release Lever 15 Guide Member 16 Brake Release Lever 17 Wire 18, 19 Spring 20 First Hydraulic Cylinder 21, 24 Piston 22 Second hydraulic cylinder 23 Hydraulic pipe

Claims (1)

(57) [Scope of utility model registration request] 1. A lock release lever for releasing a locked state of a lock lever for locking a parking brake pedal at a depressed position, and a lock release lever slidably attached to a lower surface of an instrument panel. In a foot type parking brake release device having a lever and a brake release lever connected to the lever, the parking brake pedal and the brake release lever are connected via a hydraulic device, and the brake release lever is depressed when the parking brake pedal is depressed. The foot-type parking brake release device is characterized in that it can be slid to the driver's seat side within a range that does not reach the unlocked state.