JP4662279B2 - Parking brake device - Google Patents

Description

  The present invention relates to a parking brake device that is provided on a front end side of a handle bar provided in a vehicle such as an ATV and locks a brake lever that can be pulled at a brake position.

  On the front end side of a handlebar in a vehicle such as an ATV, there are formed a grip grip that can be gripped by the driver, a brake lever for operating the vehicle brake, and the like. A parking brake device that locks in a state of being pulled is formed. A conventional parking brake device includes a lock unit that can lock a brake lever that has been pulled by locking the brake lever at a brake position.

  While such a lock allows the vehicle brake to be maintained during parking, if the brake lever locked by the lock means is further pulled, the lock means is released and the lock is automatically released. Therefore, the vehicle can be normally driven. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, in the above-described conventional parking brake device, when the locked brake lever is further pulled, the lock by the locking means is automatically released, so the brake lever is unintentionally pulled. There was a problem that the lock was released only. That is, conventionally, since the unlocking of the locked brake lever is performed by a single operation of simply pulling the brake lever, erroneous operation is likely to occur.

  The present invention has been made in view of such circumstances, and by unintentionally unintentionally releasing the brake lever by causing the locked brake lever to be unlocked through a plurality of operations. It is an object of the present invention to provide a parking brake device that can be used.

The invention according to claim 1 is provided at a front end side of a handlebar provided in the vehicle, and is capable of pulling from a non-brake position to a brake position and a release position, and locks the brake lever that has been pulled at the brake position. When the locked brake lever is pulled to the release position, the lock means that can release the lock, and the lock means that is attached to the lock means and locks the brake lever when the brake lever is in the release position. A parking brake device having an operation element that can be maintained, wherein the brake lever is pulled to a release position, and the lock on the brake lever is released by operating the operation element. And

  According to a second aspect of the present invention, in the parking brake device according to the first aspect, the protrusion formed on the brake lever and the protrusion formed on the lock means are engaged with the protrusion when the brake lever is in the brake position. The brake lever can be stopped and locked, and the notch is formed in the operation element to release the lock when the brake lever is in the release position, and the notch is formed by swinging the operation element. A claw portion that is displaced between a closed position for closing the portion and an open position for releasing the lock, and when the operation element is swung to displace the claw portion from the closed position to the open position, the brake lever is locked. Is released.

  According to a third aspect of the present invention, in the parking brake device according to the second aspect, the operation element includes an operation by which a driver can swing the operation element to displace the claw portion from the closed position to the open position. A portion is formed.

  According to the first aspect of the present invention, in order to release the lock on the brake lever, the brake lever is pulled to the release position and the operation element is required to be operated. Unlocking the brake lever unintentionally can be avoided by causing the lock to be released through a plurality of operations (that is, two operations).

  According to the second aspect of the present invention, since the operator is swung and the claw portion is displaced from the closed position to the open position, the lock on the brake lever is released. A parking lock device that can be avoided can be provided. In addition, by adding an operation element to the locking means in the conventional parking brake device, the locked brake lever can be unlocked through a plurality of operations, and the brake lever can be unlocked unintentionally. Since this can be avoided, the existing parking brake device can be used.

  According to the third aspect of the present invention, since the operating portion is formed that allows the driver to swing the operating element to displace the claw portion from the closed position to the open position, the operation of the operating element is performed reliably and smoothly. Can be done.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The parking brake device according to the present embodiment is provided on the front end side of a handlebar provided in a vehicle such as an ATV and locks a brake lever that can be pulled at a brake position. As shown, the brake lever 1, the lock means 2, and the operation element 3 are mainly configured.

  The brake lever 1 is swingable about a swing shaft L1 with respect to a fixed member 6 fixed to the front end side of the handlebar H of the vehicle. A pulling operation can be performed from the brake position (initial position) A to the brake position B and the release position C. When the brake lever 1 is pulled from the non-brake position A to the brake position B and the release position C, the wire W is pulled, and a brake (front wheel or rear wheel braking means) (not shown) can be operated. It is configured as follows.

  Further, on the base end side of the brake lever 1, there is formed a projection 1a that protrudes to the near side with respect to the paper surface in FIG. As a result, as the brake lever 1 swings about the swing axis L1, the protrusion 1a moves along a predetermined locus. On the other hand, a stay member 7 that is bent so as not to hinder the movement of the protrusion 1 a is fixed to the fixing member 6, and the locking means 2 is attached to the stay member 7.

  The locking means 2 is composed of an arm-like member that can swing around a swinging shaft L2, and as shown in FIG. 2, a notch 2a that is formed on the tip side and opens downward, A bent portion 2b that is bent in the front direction of the paper, a stopper portion 2c that protrudes in the same direction, and a swing shaft L3 that is a swing center of the operation element 3 are formed. A return spring 5 having one end fixed to a part of the lock means 2 and the other end fixed to a part of the stay member 7 is interposed in the boss portion 4 of the swing shaft L2.

  When the brake lever 1 is at the brake position B, the lock means 2 at the initial position (the position indicated by the two-dot chain line in FIG. 2) is centered on the swing axis L2 while resisting the urging force of the return spring 5. The protrusion 1a of the brake lever 1 enters the notch 2a and is locked. As a result, the brake lever 1 is locked at the brake position B, and the braking action on the wheels is maintained even when the driver releases his / her hand from the brake lever 1.

  However, when the lock means 2 is attached as a single unit (that is, when the operation element 3 to be described later is not attached), the brake lever 1 is further pulled from the locked state to release the brake lever 1. When it is swung to C, the protruding portion 1a and the locking means 2 are moved relative to each other, and the protruding portion 1a is released from the opening of the notch portion 2a, and the locking is released.

  The operating element 3 is attached to the front end side of the locking means 2 so as to be swingable about the swinging shaft L3, and is for maintaining the lock on the brake lever 1 when the brake lever 1 is at the release position C. . That is, when the brake lever 1 is in the release position C, the lock by the lock means 2 is released, but the lock on the brake lever 1 is maintained by the operation element 3.

  Specifically, as shown in FIG. 3, the operating element 3 has a claw part 3a, an operating part 3b, an abutting part 3c, and a fitting hole 3d. The shaft L3 is fitted in the fitting hole 3d so as to be swingable, and the abutting portion 3c is urged by a torsion spring (not shown) in a direction to abut on the bent portion 2b. Thus, when the operating element 3 is attached to the locking means 2 and swings about the swinging shaft L3, the claw portion 3a closes the notch 2a of the locking means 2 (see FIG. 4), It is comprised so that it may displace between the open position (refer FIG. 5) which opens the said notch 2a.

  In the present invention, the closed position is not limited to the state in which the opening of the notch 2a is completely closed, but can partially lock the protrusion 1a when the brake lever 1 is in the release position. The state is enough. The open position is not limited to the state in which the opening of the notch 2a is completely opened. When the brake lever 1 is in the release position and the operating element 3 is swung, It is sufficient if the lock is released.

  The operation element 3 is formed with an operation part 3b that allows the driver to swing the operation element 3 to displace the claw part 3a from the closed position to the open position. As a result, when the brake lever 1 is in the release position C, as shown in FIG. 4, the claw portion 3a is in a state of closing the notch portion 2a (closed position). While locking and the brake lever 1 is kept locked, if the operating portion 3 is operated to swing the operating element 3, the claw portion 3a is displaced to the open position, and the claw portion 3a of the protruding portion 1a The lock is released and the lock of the brake lever 1 is released.

Next, the operation of the parking brake device will be described.
First, in order to lock the brake lever 1, the brake lever 1 in the non-brake position A (solid line state in FIG. 1) is pulled to the brake position B to the state shown in FIG. Thereafter, by operating the operating portion 3b and swinging the operating element 3, the notch portion 2a is opened, while the lock means 3 is swung around the swinging shaft L2 to thereby cut the notch portion 2a. The protruding portion 1a is inserted into (see FIG. 7).

  At this time, the operating element 3 is returned to the initial position (position where the claw portion 3a becomes the closing position), but the locking with respect to the protruding portion 1a is performed exclusively at the notch portion 2a. As a result, the brake lever 1 is locked at the brake position B, and the lock is maintained even if the driver releases his hand from the brake lever 1. Therefore, when the wire W is pulled and the braking action is continuously performed on the wheels of the vehicle, it functions as a parking brake.

  To release such a lock, first, the brake lever 1 is further pulled from the brake position B to the release position C. At this time, the protrusion 1a and the locking means 2 move relatively so that the protrusion 1a tends to be detached from the opening of the notch 2a. However, the protrusion 1a contacts the claw 3a of the operating element 3 in the closed position. It will be in the state locked by contact (refer FIG. 8). While maintaining such a state, by pressing the operating portion 3b, the operating element 3 is swung around the swinging shaft L3, and the claw portion 3a is displaced from the closed position to the open position (see FIG. 9). When the claw portion 3a is displaced to the open position, the operation element 3 comes into contact with the stopper portion 2c of the lock means 2 and further swinging is restricted.

  The locking between the projection 1a and the claw 3a is released by the above two operations (the pulling operation to the release position of the brake lever 1 and the operation of the operation element 3). The means 2 returns to the initial position (position shown in FIG. 1) together with the operation element 3, and the lock on the brake lever 1 is released. Thus, the brake lever 1 returns to the non-brake position by the tension of the wire W, and the braking action on the wheel is released.

  According to the above embodiment, in order to release the lock on the brake lever 1, the brake lever 1 is pulled to the release position C, and the operation element 3 is required to be operated. Unlocking the brake lever 1 unintentionally can be avoided by performing unlocking of the lever 1 through a plurality of operations (that is, two operations).

  Further, the lock on the brake lever 1 is released when the operation element 3 is swung and the claw portion 3a is displaced from the closed position to the open position, so that a parking lock that can avoid erroneous operation with a relatively simple configuration. An apparatus can be provided. Further, by adding an operation element 3 to the locking means 2 in the conventional parking brake device, the locked brake lever is unlocked through a plurality of operations, and the brake lever is unintentionally locked unintentionally. Since the release can be avoided, the existing parking brake device can be used.

  Furthermore, since the operation portion 3b is formed so that the driver can swing the operation portion 3 to displace the claw portion 3a from the closed position to the open position, the operation portion 3 can be operated reliably and smoothly. be able to. The operation position and shape of the operation portion 3b can be arbitrarily designed. However, if the operation portion 3b is formed at a position relatively separated from the grip grip G as in this embodiment, the driver can use the brake lever 1 with one hand. Is pulled to the release position, and the operation portion 3b is pressed with the other hand, so that safety can be further improved.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, the operation element is configured to slide so that the claw portion 3a is displaced between the closed position and the opened position. May be. That is, as long as the brake lever 1 that has been pulled to the release position is unlocked by performing a predetermined operation, the brake lever 1 is replaced with another operation element 3 according to the present embodiment. Forms can be used. In this embodiment, the present invention is applied to the parking brake device of ATV. However, the present invention may be applied to a parking brake device of another vehicle in which a brake lever is formed on the handlebar front end side.

  As long as the parking brake device is operated by pulling the brake lever to the release position and releasing the lock on the brake lever by operating the operation element, the exterior shape is different or another function is added. It can also be applied to.

1 is an overall view showing a parking brake device according to an embodiment of the present invention (a brake lever is in a non-brake position). Schematic showing the locking means in the parking brake device Schematic showing the controls in the parking brake device It is a figure which shows the positional relationship with respect to the locking means of the same operation element, Comprising: The schematic diagram which shows the state which has a nail | claw part in a closed position It is a figure which shows the positional relationship with respect to the locking means of the same operation element, Comprising: The schematic diagram which shows the state which has a nail | claw part in an open position FIG. 3 is an overall view showing the parking brake device, and shows a state where a brake lever is pulled to a brake position. FIG. 2 is an overall view showing the parking brake device, and shows a state in which the brake lever is at a brake position and the brake lever is locked by a locking means. It is a general view showing the parking brake device, and shows a state where the brake lever is pulled to the release position and the lock is maintained at the claw portion of the operation element. It is a general view showing the parking brake device, and shows a state where the brake lever is in the release position and the lock by the lock means and the claw part of the operator is released.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brake lever 1a Protrusion part 2 Locking means 2a Notch part 3 Manipulator 3a Claw part 3b Operation part 4 Boss part 5 Return spring 6 Fixing member 7 Stay member A Non-brake position B Brake position C Release position H Handlebar

Claims (3)

A brake lever provided on a front end side of a handlebar provided in the vehicle and capable of being pulled from a non-brake position to a brake position and a release position;
A lock means that can lock the brake lever that has been pulled in the brake position, and can release the lock by pulling the locked brake lever to the release position;
An operator attached to the locking means and capable of maintaining a lock on the brake lever when the brake lever is in a release position;
A parking brake device comprising:
A parking brake device, wherein the brake lever is pulled to a release position, and the lock on the brake lever is released by operating the operation element. A protrusion formed on the brake lever;
A notch that is formed on the locking means and can be locked with the protrusion when the brake lever is in the brake position to lock the brake lever, and release the lock when the brake lever is in the release position. And
A claw portion formed on the operation element and displaced between a closed position for closing the notch portion by a swing operation of the operation element and an open position for opening the notch section;
2. The parking brake device according to claim 1, wherein the lock on the brake lever is released when the operation element is swung and the claw portion is displaced from the closed position to the open position. .   3. The parking brake device according to claim 2, wherein an operating portion is formed on the operating element, which allows a driver to swing the operating element to displace the claw portion from the closed position to the open position. .

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