JPH0143357Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parking brake actuation device for a vehicle, such as a two-wheeled or three-wheeled off-road vehicle.

Conventionally, a parking brake device used in this type of vehicle includes a clutch lever having a grip portion rotatably provided on a bar handle, and a parking lever without a grip portion rotatably provided coaxially with the clutch lever.
When operating the parking brake, the clutch lever is brought into a linked state by pressing the linking pin against the spring force of the return spring, and in this state, the grip portion of the clutch lever is rotated by manual operation. This allows the parking lever to rotate integrally. The clutch lever is provided with a rotatable lock plate, and after the parking lever is rotated together with the clutch lever, the lock plate is rotated in one direction to engage its tip with the engaging portion. When the clutch lever is engaged, the return rotation of the clutch lever is locked, and a portion of the lock plate covers the linking pin to prevent it from returning from the pushed-in state, thereby allowing the parking brake device to continue operating. ing.

However, this conventional structure has the disadvantage that when operating the parking brake device, the coupling pin must be pushed in and the lock plate rotated at the same time while rotating the clutch lever, making the operation complicated. It was hot.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to rotate the clutch lever while pushing in the manual operation member, and the parking lever is rotated and the parking brake device is activated, and the purpose of the invention is to rotate the parking lever and activate the parking brake device. To provide a parking brake actuation device for a vehicle, which allows the operation of the parking brake device to be continued by further pushing in a manual operation member, thereby significantly improving operability.

The following is an example of the present invention shown in Figures 1 to 5.
This will be explained with reference to the figures. Reference numeral 1 denotes a bar handle of a vehicle, for example, a two-wheeled or three-wheeled off-road vehicle, and a lever holder 3 is fixed adjacent to a handle grip 2 on the left side of the bar handle. Reference numeral 4 denotes a clutch lever rotatably supported by the lever holder 3 via a pivot shaft 5, and a clutch lever 4 is integrally extended with a grip portion 6 that projects leftward from the lever holder 3 and faces the handle grip 2. ing. Reference numerals 7 and 8 designate receiving portions that are provided to face the hanging wall 3a of the lever holder 3 and the clutch lever 4, and the end of the outer wire of the clutch operation wire (not shown) is fitted into the receiving portion 7, and the end of the inner wire is inserted into the receiving portion 7. is inserted into the receiving part 8, and the clutch lever 4 is biased in the direction of arrow a by a return spring (not shown) acting on the clutch operation wire, and is always in the inoperative position shown in FIGS. 1 and 2. located in 9 is a parking lever rotatably supported by the lever holder 3 via a pivot 10 parallel to the pivot 5;
A clutch lever 4 and a parking lever 9 are arranged vertically in parallel. Reference numerals 11 and 12 designate receiving portions that are provided to face the hanging wall 3a of the lever holder 3 and the parking lever 9, and the ends of the outer wires of the parking brake operating wire (not shown) are fitted into the receiving portions 11, and the ends of the inner wires are inserted into the receiving portions 11 and 12, respectively. The end portion is fitted into the receiving portion 12, and the parking lever 9 is biased in the direction of arrow a by a return spring (not shown) acting on the parking brake operating wire, and is normally located in the inoperative position shown in FIG. be done. Reference numeral 13 designates a stepped first holding hole that vertically passes through the lever holder 3, and is provided in the clutch lever 4 when the clutch lever 4 is placed in the inoperative position as shown in FIGS. 1 and 2. A stepped second holding hole 14 communicating with the first holding hole 13 is formed through the parking lever 9, and both levers 4 and 9 are positioned in the inoperative position shown in FIG. An engagement hole 15 is provided which sometimes communicates with the first holding hole 13 via the second holding hole 14 . Reference numeral 16 denotes a stepped linking member that is vertically movably inserted into the second holding hole 14 and has a large-diameter portion 16a at its upper end, and urges the linking member 16 upward in one direction on its outer periphery. A compression coil spring 17 is installed in a wound state,
The large diameter portion 16a is always in contact with the lower surface 3b of the lever holder 3 due to the spring force of the compression coil spring 17. Reference numeral 18 denotes a circular movable member having a predetermined thickness, which is normally housed in the large diameter portion 13a on the lower end side of the first holding hole 13. Reference numeral 19 denotes a manual operation member inserted into the first holding hole 13 so as to be vertically movable, and a push button 20 is integrally formed at the upper end of this manual operation member.
A is provided. Reference numeral 21 denotes a compression coil spring as a spring means which is wound around the outer periphery of the manual operation member 19, and its upper end abuts against the flange 20a and its lower end contacts the middle stage of the first holding hole 13. The compression coil spring 21 always urges the push button 20 upward in the direction opposite to the pushing direction. Reference numeral 22 denotes a backing plate fixed to the upper surface of the lever holder 3 with screws 23 so as to cover the first holding hole 13. The push button 20 is projected outward from the hole 22a bored in this plate, and the flange is normally closed. The portion 20a is in contact with the lower surface of the backing plate 22.
Reference numeral 24 designates a regulating portion bored in the clutch lever 4 so as to face the lower end of the manual operation member 19 when the clutch lever 4 is rotated by a predetermined angle in the direction of arrow a against a return spring (not shown). This is a fitting hole, and its lower end communicates with the receiving part 8.

Next, the operation of the above configuration will be explained. When the clutch lever 4 is operated independently in the direction of arrow a against a return spring (not shown) by operating the grip portion 6, the movable member 18 is fitted into the large diameter portion 13a of the first holding hole 13. In this state, only the clutch lever 4 is rotated (see FIG. 3), and the clutch is opened via a clutch operation wire (not shown).
On the other hand, when applying the parking brake,
As shown in the figure, when both the levers 4 and 9 are in the inoperative state, when the push button 20 is pushed down a predetermined stroke against the compression coil spring 21, the movable member 18 is pushed down by the manual operation member 19. , the movable member 18 escapes from the large diameter portion 13a of the first holding hole 13 and is inserted into the second holding hole 14. Along with this, the linking member 16 is moved downward against the compression coil spring 17, and its lower end, which is its tip, is fitted into and engaged with the engagement hole 15 (see FIG. 4). In this state, when the clutch lever 4 is rotated in the direction opposite to the arrow a with the grip portion 6 while continuing to push the push button 20, the parking lever 9 is integrally moved with the clutch lever 4 via the linking member 16. It is rotated in the direction a, and both levers 4,
9, the clutch is opened via a clutch operating wire (not shown), and at the same time, the parking brake device is operated via a parking brake operating wire (not shown). When both the levers 4 and 9 are operated at a predetermined angle in the direction opposite to arrow a and positioned at the operating position where the parking brake device is operated, the fitting hole 24 matches the tip of the manual operation member 6, so that the push button is not pressed. Due to the pushing force continuously applied to the manual operation member 20, the tip of the manual operation member 6 is fitted into the fitting hole 24 (see FIG. 5). In this state,
When the hand is released from the grip portion 6 of the clutch lever 4 prior to releasing the push button 20, the manual operating member 19 is moved against the fitting hole 24 by the force of returning the clutch lever 4 in the direction of arrow a. They are engaged against the spring force of the spring 21, and even if the push button 20 is subsequently released, the push button 20 and the manual operating member 19 remain in the pushed state, and both levers 4 and 9 remain in the engaged state. Each is locked in the activated position and the parking brake system is continuously activated.

As shown in FIG. 5, when the levers 4 and 9 locked in the operating position are returned to the inoperative position to release the parking brake system,
Without operating the push button 20, the clutch lever 4 is slightly operated in the direction opposite to the arrow a by operating the grip portion 6. Then, the tip of the manual operation member 19 and the fitting hole 2
4 is released and the manual operation member 19 is returned upward by the spring force of the compression coil spring 21 and escapes from the fitting hole 24. If the operation on the grip portion 6 is then released, Both levers 4 and 9 return to their original positions shown in FIG. Since it is returned to the large-diameter portion 13a, the lower end of the linking member 16 escapes from the engagement hole 15, and the linkage between the clutch lever 4 and the parking lever 9 is released (see Fig. 2), and the clutch lever 4 can be operated independently. It becomes possible to operate.

According to the above configuration, when operating the parking brake device, it is only necessary to press the push button 20 and rotate the clutch lever 4 in the opposite direction of the arrow a by operating the grip portion 6, and it is necessary to operate the clutch lever 4 in the opposite direction of the arrow a. There is no need to push the pin in and rotate the lock pin at the same time, making the operation very simple.
In addition, the parking brake device in the locked state
Next, when the clutch lever 4 is rotated, it is automatically released, so there is no risk of driving with the parking brake device activated.

FIG. 6 shows another embodiment of the present invention, and only the parts different from FIG. 5 will be explained. That is,
An annular recess 19 is provided on the outer periphery of the tip of the manual operation member 19.
a, and a protrusion 24a protruding from the inner periphery of the fitting hole 24 so that the tip of the manual operation member 19 is hooked into the recess 19a when the tip is fitted into the fitting hole 24. More reliable locking can be achieved when the brake device is activated.

In the above-mentioned embodiment, since the pivot shaft 5 of the clutch lever 4 and the pivot shaft 10 of the parking lever 9 are set at different positions, the amount of tension of the clutch operation wire and the parking brake operation wire by both levers 4 and 9 can be set arbitrarily. However, both levers 4, 9 may be rotatably supported, for example, on one pivot shaft 5.

As is clear from the above description, in the present invention, when the clutch lever is rotated while pushing in the manual operating member, the parking lever is rotated and the parking brake device is activated, and the manual operating member is pushed in. This allows the parking brake device to continue operating, thereby providing a parking brake actuation device for a vehicle that can significantly improve operability.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a top view, FIG. 2 is a vertical sectional view taken along the line - in FIG. 1, and FIGS. 3 to 5 6 is a longitudinal sectional view showing different operating states, and FIG. 6 is a view corresponding to FIG. 4 showing another embodiment of the present invention. In the drawing, 3 is a lever holder, 4 is a clutch lever, 6 is a grip part, 13 is a first holding hole, 14 is a second holding hole, 15 is an engagement hole, 16 is a linking member, 1
8 is a movable member, 19 is a manual operation member, 20 is a push button, 21 is a compression coil spring (spring means), and 24 is a fitting hole (regulating part).

Claims (1)

[Scope of utility model registration request] A clutch lever having a grip portion and rotatably supported by a lever holder, a parking lever rotatably supported by the lever holder, and a state in which the two levers are in communication with each other when each of the levers is located at a non-operating position. a first holding hole provided in the lever holder, a second holding hole provided in the clutch lever, an engagement hole provided in the parking lever, and the second holding hole so as to a linking member which is provided so that the distal end thereof is inserted into and engaged with the engagement hole when moved in one direction and is biased so that it is always in a non-engaged state with the engagement hole; The connecting member is provided so as to be movable between the first and second holding holes, and is normally held in the first holding hole, and when moved into the second holding hole, the linking member is moved in one direction. a movable member that is moved to engage with the engagement hole to bring both the levers into an interlocking rotation state; and a movable member that is movably provided in the first holding hole and that both levers are located in an inoperative position. a manual operating member that causes the movable member to escape from the first holding hole and move into the second holding hole when a manual pushing operation is performed; and the linking member is fitted into and engaged with the engagement hole. When the parking lever is rotated to an operating position by rotation of the clutch lever in a state where the clutch lever is rotated, the manual operation member provided on the clutch lever is fitted and engaged so as to face the first holding hole. 1. A parking brake actuating device for a vehicle, comprising: a regulating portion for regulating return rotation of the clutch lever to an inoperative position; and a spring means for always biasing the manual operating member in a direction opposite to the pushing direction.