JPH051490Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a foot-operated parking brake that allows the brake to be engaged and released by stepping on the pedal.

(Prior technology) The conventional foot-operated parking brake that uses a pedal has a brake release lever located on the instrument panel, and when you try to release it by hand, you have to lean forward with your upper body, making it difficult to operate. It was bad.

(The problem that the invention aims to solve) However, if such a release lever is installed in a position where it is easy to operate, there is a risk of erroneous operation. It was placed in a bad position. Some ideas have been developed to improve operability and pursue high safety and performance. For example, there is a release pedal in place of the release lever that is installed on the floorboard so that it can be operated with the foot (Utility Model No. 59-
(Refer to Publication No. 97153) However, it has the disadvantage that it is not suitable for vehicle models with narrow floorboards.

The present invention was devised in view of these points, and its purpose is to be able to quickly perform brake activation and brake release operations with one pedal, to have a relatively simple structure, and to have a floor board. To provide an improved foot-operated parking brake which can be configured to effectively utilize the upper space, has reliable operation and excellent reliability, and is easy to take safety measures against erroneous operation and prevent theft.

(Means for Solving the Problem) In order to achieve the above object, the solution taken in the invention described in claim (1) includes a movable bracket rotatably provided on the vehicle body as a foot-operated parking brake; A parking cable connected to the movable bracket and towed by the forward rotation of the movable bracket, a pedal supported by the movable bracket and constantly urged to rotate rearward, and a rearward position of the pedal of the movable bracket. a rear stopper that is fixedly attached to the pedal and that comes into contact with the pedal when it rotates rearward to restrict the rotation of the pedal; a front stopper that is fixed at a position in front of the pedal of the movable bracket at an allowable interval and engages with the pedal when the pedal is depressed forward to rotate the movable bracket forward; a locking means for locking the pedal from rotating; a switch provided at a position close to the front stopper and activated by pressing the pedal forward to a position close to the front stopper;
The actuator is provided on the movable bracket and releases the locked state of the movable bracket by the locking means in response to a signal from the switch.

Furthermore, the solution taken by the invention described in claim (2) limits the structure of the locking means described in claim (1), and includes a lock pawl operated by an actuator.
It consists of a ratchet that is fixed to the vehicle body.

Furthermore, the solution taken by the invention described in claim (3) is to limit the configuration of the switch described in claim (1) or (2) above, and to make it alternately switched between ON and OFF by pressing. This is what I did.

(Function) With the above configuration, in the devices recited in claims (1) to (3), when locking the brake, the pedal is depressed forward while rotating idly relative to the movable bracket from the brake non-operating state. When the pedal comes close to the front stopper, the switch is pressed by the pedal, actuating the actuator and locking the locking means. When the pedal is further depressed, the pedal engages with the front stopper and the movable bracket is moved. Rotate it forward to activate the brake.

On the other hand, when releasing the brake, the switch is pushed by pressing the switch forward while rotating the pedal idly until it engages the front stopper with respect to the movable bracket in which the brake is applied, and the actuator is activated to lock the locking means. The locked state is released, and when the pedal is released, the brake is released.

In this way, since the brake activation and brake release operations can all be performed with one pedal, the brake application/release operations can be quickly performed in a natural posture.

In addition, the switch will not operate unless the pedal is pressed forward to a position close to the front stopper, so when applying or releasing the brake, the intention is to move the pedal idly between the front and rear stoppers with respect to the movable bracket. It is confirmed within the idle operation area, and it is possible to prevent erroneous operation when there is no intention to apply/release the brake. Moreover, when the pedal is pressed forward when the brake is released, the pedal is moved forward so that it engages with the front stopper of the movable bracket, which is kept rotated forward by the brake application and is moved away from the front. Therefore, erroneous operation of the pedal when releasing the brake is more reliably prevented.

Furthermore, since the brake can be activated/released with a single pedal as described above, the structure of the brake is superior to that in which the brake is released using a release lever on the floor, which is different from the brake activation pedal. Not only is this simple, but the space on the floor can be used effectively.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

The foot-operated parking brake 1 of the present invention includes a movable bracket 2 as its main components,
A parking cable 3 connected to the movable bracket 2 and pulled by its rotation to lock the brake; a foot pedal 4 rotatably supported by a support shaft provided on the movable bracket 2; A pair of front and rear stoppers 5, 6 fixedly installed on the bracket 2 to restrict rotation of the pedal 4 in the front-rear direction, and a locking means 8 for locking the movable bracket 2 from rotation. a switch 9 that is activated by forward depression of the pedal 4; and an actuator that is provided on the movable bracket 2 and releases the locked state of the movable bracket 2 by the locking means 8 in response to an operation control signal from the switch 9. We are prepared.

The movable bracket 2 has a substantially fan-like shape, and is rotatably provided in a vertical plane on a panel P of the vehicle body approximately in the center thereof by means of a support shaft 2a. The lower end of the movable bracket 2 is connected by a pin 2c to a fork fitting 3a to which a parking cable 3 made of a flexible cable is connected. Further, on the extension of the support shaft 2a, a pedal 4 is rotatably supported with respect to the movable bracket 2, and a coil spring 4a that constantly biases the pedal to rotate rearward.

The rear stopper 6 is fixed at a position rearward of the pedal in the central lower part of the movable bracket 2, and is adapted to come into contact with the pedal 4 when it rotates rearward to restrict the rotation of the pedal 4. . on the other hand,
The front stopper 5 is fixed at a position in front of the pedal at a lower central portion of the movable bracket 2 and spaced apart from the rear stopper 6 by a distance that allows the pedal 4 to rotate forward by a predetermined amount. When the pedal 4 is depressed forward, it engages with the pedal 4 and rotates the movable bracket 2 forward. In this case, the idle rotation of the pedal 4 by a predetermined amount between the front and rear stoppers 5 and 6 means that the operator who depresses the pedal 4 does not depress the pedal 4 forward with the intention of rotating the movable bracket 2 forward. The idle operation range is set such that the pedal 4 does not engage the front stopper 5 as far as possible.

Further, a mounting bracket 2d is provided on the movable bracket 2 above the support shaft 2a, and an actuator 7 is fixed to the mounting bracket 2d. A lock pawl 8a of a locking means 8 is pivotally supported by a support shaft 2e provided on a movable bracket 2 close to the actuator 7, and the actuator 7 is moved forward and backward electrically by an actuator rod 7a. and is connected to the lock pawl 8a. The locking means 8 consists of the locking pawl 8a and a ratchet 8c.

The ratchet 8c is fixed to the panel P of the vehicle body so as to be able to engage with the lock pawl 8a, and has meshing teeth 8d formed along an arc centered on the support shaft 2a. The movable bracket 2 further includes a front stopper 5.
A push-push type switch 9 is mounted adjacent to the top so that the contact protrudes rearward from the abutment surface of the stopper and is pressed by the pedal 4 which is depressed forward to a position close to the front stopper 5. It is being Every time this switch 9 is pressed,
It is switched ON and OFF sequentially, and controls the operation of the actuator 7.

When the switch 9 is in the ON state, the actuator 7 contracts the rod 7b and locks the lock pawl 8a.
When the rod 7b is released from the ratchet 8c and the switch 9 is in the OFF state, the actuator 7 pulls back the rod 7b by the internal spring, causing the lock pawl 8a to engage the ratchet 8c, causing the bracket 2 to return. Lock rotation.

To prevent the parking brake from being released even if a child accidentally operates it while the parking brake is engaged, and to prevent theft, the actuator 7 and power source are connected to the ignition key switch 1.
When the ignition key 11 is removed, the signal from the switch 9 is cut off, and the actuator 7 is configured to maintain the switch OFF state. To release the lock pawl 8a when the battery is in a discharged state, the lock pawl lever 8b can be manually operated in the direction of arrow A, thereby releasing the brake.

The operation when applying the parking brake is explained according to the operating procedure: 1. When the pedal 4 is depressed from the brake non-latched state, the switch 9 is pushed by the pedal and turned OFF.

2 When the switch 9 is turned OFF, the actuator 7 returns and the lock pawl 8a engages the ratchet 8c.

3. When the pedal is further depressed, the pedal 4 hits the front stopper 5, and both the pedal 4 and the movable bracket 2 rotate about the support shaft 2a.

4. The movable bracket 2 pulls the parking cable 3 and locks the brake.

5. At this time, the lock pawl 8a is in a state of being engaged with the ratchet, so the movable bracket 2 is fixed, and the brake remains applied as shown by the two-dot chain line in FIG.

6 When you take your foot off the pedal 4, the coil spring 4
a causes the pedal 4 to return to the rear stopper 6.

Next, the operation for releasing the brake will be explained as follows: 7. When the pedal 4 is depressed with the intention of rotating the movable bracket 2 to release the brake, the switch 9 is pressed and turned ON.

8 The actuator 7 is connected to the power source and operates,
Contract the rod 7b, remove the lock pawl 8a from the ratchet 8c, and move the pedal 4 to the movable bracket 2.
At the same time, rotate it back to its original position and release the brake.

9. When the foot is released from the pedal 4, the pedal 4 comes into contact with the rear stopper 6, as shown by the solid line in FIG.

In this way, the operation of applying the parking brake and releasing the brake can all be performed with one pedal 4, so you can quickly apply/release the brake in a natural posture.
A release operation can be performed.

In addition, the switch 9 will not operate unless the pedal 4 is pressed forward to a position close to the front stopper 5, so when applying or releasing the brake, the intention is to move between the front and rear switchers 5 and 6 with respect to the movable bracket 2. It is confirmed that the pedal 4 is rotating idly within the idling operation range, and erroneous operation when there is no intention to apply/release the brake is prevented. Moreover, when the pedal is depressed forward when the brake is released, the pedal 4 is held in a forwardly rotated state by the brake operation and engaged with the front stopper 5 of the movable bracket 2, which is separated from the front. The driver must press the pedal more forward, and erroneous operation of the pedal 4 when releasing the brake can be more reliably prevented.

As a result, it is possible to improve the operability when applying/releasing the brake using one pedal 4, and to prevent erroneous operation when there is no intention of operating the brake, thereby improving safety.

Furthermore, since the brake can be activated/released using a single pedal 4 as described above, it is easier to release the brake than when the brake is released using a release lever on the floor that is different from the brake activation pedal. The structure can be simplified, the operation is reliable, and the reliability is excellent.
Space on the floor can be used effectively.

Furthermore, since the actuator 7 and the power supply are electrically connected via the ignition key switch 10, there is a safety measure against erroneous operation by a child or the like when the ignition key 11 is removed, and a theft prevention measure. This will be very advantageous in implementation.

(Effect of the invention) As described above, according to the foot-operated parking brake according to the invention as claimed in claims (1) to (3), it is possible to naturally operate the parking brake and release the brake with one pedal. The brake can be operated quickly in the same position, and the user can confirm the intention to apply/release the brake within the idle operation area of the pedal that rotates idly relative to the movable bracket, and is particularly susceptible to erroneous operation when there is no intention to apply/release the brake. Since erroneous operation of the pedal when releasing the brake is more reliably prevented, safety can be achieved while improving the operability of the pedal. Moreover, by operating/releasing the brake with a single pedal as described above,
The structure is simple, the operation is reliable and reliable, and the space on the floor can be used effectively.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of the foot-operated parking brake of the present invention, and FIG. 2 is a side view showing the parking brake in an operating state. 1... Foot-operated parking brake, 2... Movable bracket, 3... Parking cable, 4...
...Pedal, 5...Front stopper, 6...Rear stopper, 7...Actuator, 8...Lock means, 8a...Lock claw, 8c...Ratchet, 9
...Switch.

Claims (1)

[Claims for Utility Model Registration] (1) A movable bracket rotatably provided on the vehicle body, a parking cable connected to the movable bracket and pulled by the forward rotation of the movable bracket, and the movable bracket. a pedal that is pivotally supported by a bracket and is always urged to rotate rearward; and a pedal that is fixedly mounted at a rear position of the pedal of the movable bracket;
a rear stopper that comes into contact with the pedal when it rotates rearward to restrict the rotation of the pedal, and a distance between the rear stopper and the rear stopper that allows the pedal to rotate forward by a predetermined amount. A front stopper is fixed at a position in front of the pedal of the movable bracket separated from the movable bracket and engages with the pedal to rotate the movable bracket forward when the pedal is depressed forward; and a front stopper that prevents the movable bracket from rotating. a switch provided on the movable bracket and activated by a signal from the switch, which is provided in a position close to the front stopper and is activated by pressing the pedal forward to a position close to the front stopper; A foot-operated parking brake comprising: an actuator for releasing the locked state of the movable bracket by the locking means. (2) The foot-operated parking brake according to claim (1), wherein the locking means comprises a lock pawl operated by an actuator and a ratchet fixed to the vehicle body. (3) The foot-operated parking brake according to claim (1) or (2), wherein the switch is turned on and off alternately by pressing.