JPH0519039U - Parking brake operating device - Google Patents

Abstract

(57) [Summary] [Object] The present invention provides a parking brake operating device that is highly safe and does not reach a released state due to an erroneous operation, vibration, or the like, and has excellent operability. [Structure] The present invention is a tooth portion 12 fixedly arranged in a vehicle.
The sector 12 having a and the cable 8 connected to the parking brake of the vehicle are attached and the sector 1
A base portion 16 rotatably supported by 2 and the base portion 1
Operation lever body 1 having an operation lever 14 integrated with 6
8, a pawl 22 engaged with the tooth portion 12a of the sector 12 in a constantly biased state, a grip 28 slidably attached to the operating lever 14, and a grip 28
And a claw body disengagement mechanism section 30 that disengages the claw body 22 from the tooth portion 12a of the sector 12 in conjunction with the sliding operation. With this configuration, the parking brake can be released only by sliding the grip 28, which improves safety and improves operability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a parking brake operating device, and more particularly, to a parking brake operating device that prevents malfunction of a parking brake.

[0002]

[Prior Art]

 A conventional example of the parking brake operating device will be described with reference to FIG.

A parking brake operating device 50 shown in FIG. 1 includes an operating lever body 58 having an operating lever 54 having a grip 52 attached to a protruding end thereof, and a plate-shaped base 56 integral with the operating lever 54. The base portion 56 of the operating lever body 58 is rotatably supported by a pin 62 provided in a sector 60 having a tooth portion 60a fixed to the floor beside the driver's seat of the vehicle. Further, an end portion of a cable 74 connected to the parking break of this vehicle is attached to the base portion 56.

A rotating lever 66 having a release rod 76 attached to one end thereof and a claw portion 64 engaging with a tooth portion 60 a of the sector 60 provided at the other end of the base portion 56 is provided with a support pin 68 via a support pin 68. It is rotatably attached.

The release rod 76 is connected to an operating knob 70 arranged in the protruding end portion of the operating lever 54, and the operating knob 70 is biased toward the protruding end portion side of the operating lever 54 by a spring 72. It is like this.

According to this parking brake operating device 50, the release rod 76, which receives the pushing force of the operating knob 70, is pushed by pushing the operating knob 70 in the direction of arrow a against the biasing force of the spring 72. The moving lever 66 is rotated to the position shown by the imaginary line in FIG. 3, whereby the claw portion 64 provided at the other end of the rotating lever 66 separates from the tooth portion 60a of the sector 60. That is, the operation lever main body 58 is in a state in which it can freely rotate about the pin 62 as a fulcrum, and the parking brake is released.

[0007]

[Problems to be solved by the device]

 However, in the case of the parking brake operating device 50 having the above-described configuration, the parking brake is released only by displacing the operation knob 70 in the direction of the arrow a. There is a high risk that the operation knob 70 may be displaced in the direction of the arrow a due to a shock or the like to cause the parking brake to be released.

In order to solve such a problem, it has been attempted to adopt a mechanism for releasing the parking brake by a two-step operation, but in this case, in this case, the parking brake is released. There is a problem that is complicated.

Therefore, an object of the present invention is to provide a parking brake operating device that does not reach a released state due to an erroneous operation, vibration, or the like, and has excellent operability.

[0010]

[Means for Solving the Problems]

 A sector having a tooth portion fixedly arranged in the vehicle, a cable connected to the parking brake of the vehicle is attached, and a base rotatably supported by the sector and an operation lever integrated with the base portion. Operating lever body, a claw body that is engaged with the tooth portion of the sector while being constantly urged, a grip slidably attached to the operating lever, and a sliding operation of the grip. And a claw body detachment mechanism section for detaching the claw body from the tooth portion of the sector.

[0011]

[Operation] The operation of the parking brake operating device having the above-described configuration will be described below.

When the parking brake is operated by the parking brake operating device and the grip attached to the operation lever is slid, the claw body disengagement mechanism is operated in association with this, and the tooth portion of the sector is operated. On the other hand, the claw body which is always engaged in the biased state is disengaged from the tooth portion of the sector against the biasing force. As a result, the operation lever body is allowed to rotate with respect to the sector, and the parking brake is released.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail.

The parking brake operating device 10 shown in FIG. 1 includes a sector 12 made of a metal plate having an arcuate tooth portion 12 a fixedly arranged in the vehicle, and an arrow by a first pin 13 for the sector 12. An operating lever body 18 composed of an operating lever 14 rotatably supported in the A and B directions and a base portion 16 composed of a pair of flat plates (only one of which is shown in FIG. 1) and a tooth portion 12a of the sector 12 are provided. A claw body 22 having a claw part 22a at one end rotatably supported by the second pin 20 with respect to the base part 16 in the vicinity thereof, and one spring piece 26a wound around a fixing pin 24. With a biasing spring 26 in which the other spring piece 26b is engaged with an engaging pin 28 fixed to the base portion 16, and the arrow C, D with respect to the operating lever 14. Slidable in any direction It has an attached grip 28 and a claw body detaching mechanism section 30 for separating the claw portion 22a of the claw body 22 from the tooth portion 12a of the sector 12 in association with the sliding operation of the grip 28.

The end portion of the cable 8 connected to the parking brake of the vehicle is attached to the base portion 16 of the operation lever body 18.

The grip 28 has a cylindrical grip core member 28 a, an end grip member including a screw portion screwed to an end portion side of the grip core member 28 a and a flange portion integral with the screw portion. 28b and a grip surface member 28c that surrounds the outer periphery of the grip core member 28a and that abuts on the flange portion of the end grip member 28b.

The inner diameter of the grip core material 28a is small on the left side and slightly larger on the right side of the grip core material 28a in FIG. 1 as a boundary, so that the inside of the grip core material 28a will be described later. A housing space 34 for the coil spring 32 is formed. Further, the projecting end of the screw portion of the end grip material 28 b extends into the accommodation space 34.

The operating lever 14 is provided with a spring stopper 36 that projects in the radial direction within the accommodation space 34. A coil stopper is provided between the spring stopper 36 and the projecting end of the end grip member 28b. By disposing the spring 32, the operating lever 14 is constantly biased in the direction of arrow C.

In FIG. 1, 38 is a grip stopper attached to the operation lever 14, and 40 is a knob screwed to the protruding end of the operation lever 14.

The claw body disengaging mechanism section 30 includes a rotating member 44 rotatably attached to the base portion 16 by a third pin 42, one end 44 a of the rotating member 44, and the grip 28. It is provided with a connecting cable 46 for connecting, and a rod 48 for connecting the other end 44b of the rotating member 44 and the claw 22.

Next, the operation of the parking brake operating device 10 having the above-described configuration will be described with reference to FIG.

When a parking brake (not shown) is operated by the parking brake operating device 10, the grip 28 attached to the operating lever 14 is slid in the direction of arrow D against the biasing force of the coil spring 32. The connecting cable 46 connected to the grip 28 rotates the rotating member 44 in the arrow E direction, and accordingly, the rod 48 is displaced in the arrow C direction to move the claw portion 22a of the claw body 22 to the sector 12a. It is disengaged from the tooth portion 12a.

As a result, the operation lever main body 18 becomes rotatable with respect to the sector 12, and the parking brake is released.

When the sliding operation of the grip 28 attached to the operation lever 14 is stopped, the grip 28 returns in the direction of arrow C by the urging force of the coil spring 32, but at this time, the connecting cable 46 tries to relax. Since the biasing spring 26 constantly biases the pawl 22 toward the pawl portion 12a, the connecting cable 46 does not loosen.

The parking brake operating device 10 operates a parking brake (not shown) simply by rotating the operation lever 14 in the direction of arrow A, whereby the cable 8 is pulled in the direction of arrow D. The parking brake can be activated. During such an operation, the biasing spring 26 constantly biases the pawl body 22 toward the pawl portion 12a, so that the pawl body 22, the rod 48, and the rotating member 44 vibrate in small steps. The connecting cable 46 is only slightly loosened, and no vibration is transmitted to the grip 28.

The present invention can be modified in various ways within the scope of the invention in addition to the above-described embodiments.

[0027]

[Effect of the device]

 According to the present invention described in detail above, due to the above-described configuration, the parking brake is released by the sliding operation of the grip, which is an unexpected event of releasing the parking brake due to an erroneous operation, vibration, etc. Since the situation can be avoided, it is possible to provide a parking brake operating device that is highly safe and has good operability.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a released state of the parking brake according to the embodiment device of the present invention.

FIG. 3 is a schematic cross-sectional view of a conventional device.

[Explanation of symbols]

8 cable 10 parking brake operating device 12 sector 14 operation lever 16 base 18 operation lever main body 22 claw 28 grip 30 claw release mechanism section
HB011902

Claims (1)

[Scope of utility model registration request] 1. A sector having a tooth part fixedly arranged in a vehicle, a base part to which a cable connected to a parking brake of the vehicle is attached and rotatably supported by the sector, and an integral part of the base part. An operation lever body having a simple operation lever, a claw body that is engaged with the tooth portion of the sector while being constantly biased, a grip slidably attached to the operation lever, and a slide operation of the grip. And a claw body detachment mechanism section for interlocking with the claw body to disengage the claw body from the tooth portion of the sector.