JPH0796380B2 - Parking brake device for small vehicles - Google Patents

Description

TECHNICAL FIELD The present invention relates to a parking brake device used in a small vehicle such as a golf cart.

[Conventional technology]

As a golf cart for carrying golf equipment used by a player in a golf course, for example, "Kaikai Sho 52-140858" has hitherto been known.
As disclosed in Japanese Patent Publication No. JP-A-2003-264242, there is known one in which a bar handle for steering and operating the front wheels is arranged in front of a riding space where a driver gets in.

By the way, in this kind of riding golf cart, in order to prevent the vehicle body from starting to move during parking, a hook for locking a regular brake lever to a braking position is provided in the grip portion of the bar handle, and when the vehicle is parked, Is designed to prevent the brake lever from being returned to the original braking release position by hooking the brake lever on the hook so that the regular brake lever also has a function as a parking brake lever.

[Problems to be solved by the invention]

However, according to this configuration, it is necessary to operate the hook with the other hand while holding the brake lever with one hand, so the operation has two steps, and there is room for improvement in terms of operability. There is.

Also, if the hook is not hooked properly, the brake may become loose,
There is a risk that the brake lever will return to the braking release position, and there is also a problem of lack of reliability.

The present invention has been made based on such a situation, and it is possible to reliably hold the parking brake lever at the braking position, and to perform the braking operation and the brake releasing operation of the parking brake lever with a small force. The parking brake lever can be easily located and the dead space around the bar handle can be used to hinder the steering operation of the bar handle, or the parking brake is operated at the braking position. An object of the present invention is to provide a parking brake device for a small vehicle that is highly reliable without the risk of touching the vehicle brake lever.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention has a steering shaft for steering and operating front wheels arranged vertically in front of a driver's riding space, and a bar handle is provided at an upper end of the steering shaft. It is premised on connected small vehicles.

The bar handle is connected to an upper end portion of the steering shaft and extends in the vehicle width direction, and right and left rising portions extending upward from both left and right ends of the connection portion,
The left and right grips connected to the upper ends of the rising parts, and the crossbar that connects the upper ends of the rising parts and extends in the vehicle width direction are provided in front of the crossbar of the bar handle, and When the bar handle is viewed from the front, the parking brake lever is arranged in a portion surrounded by the connecting portion and the left and right rising portions, and the parking brake lever is placed on the crossbar. Has a gripping part that is substantially parallel to the crossbar within the reach of the fingertips of the parking brake, and the parking brake lever has a braking position in which the gripping part is close to the crossbar and a braking distance from the crossbar. The bar handle is rotatably supported in the front-rear direction over the release position, and is urged to rotate toward the braking release position via a spring. The bar includes a stopper that holds the parking brake lever at the braking position when the parking brake lever is rotated toward the braking position. The stopper holds the parking brake lever. And a locking recess that is elastically engageably and disengageably engaged with the locking portion and that is open toward the crossbar, and that extends from the locking recess away from the crossbar. And an operating portion for releasing the engagement with the grip portion are integrally provided.

[Action]

According to this configuration, the parking brake lever is located between the left and right grips of the bar handle, so that the driver can operate the right hand and the left hand in the same manner.

Then, when the parking brake lever is rotated in the braking direction, the grip portion elastically engages with the locking recess of the stopper, and the brake lever is automatically held at the braking position. Therefore, the braking operation at the time of parking can be performed by one operation, the operability is improved, and the parking brake lever can be reliably held at the braking position. Further, since the grip portion is arranged within the range where the fingertips of the hand hung on the crossbar can reach, when the parking brake lever is rotated toward the braking position, the grip portion is supported by the crossbar as a fulcrum. You can hold it. Therefore, the braking operation of the parking brake lever can be performed with a light force.

To release the braking by the parking brake lever,
First, the grip portion of the brake lever is gripped, and the grip portion is slightly rotated toward the braking position, so that the grip portion is slightly disengaged from the locking recess. Then, the operating portion connected to the locking recess is pressed with a fingertip to release the engagement between the locking recess and the grip portion. Then, the holding of the grip portion by the stopper is released, so that the parking brake lever is forcibly rotated toward the braking release position by the urging force of the spring. In this case, since the stopper is arranged on the crossbar, the stopper and the grip portion are adjacent to each other. Therefore, the operation portion of the stopper can be pressed by the fingertip of the hand holding the grip portion, and the braking release operation of the parking brake lever can be continuously performed with one hand.

Further, according to the above configuration, since the parking brake lever is arranged in the dead space between the left and right rising portions of the bar handle, the parking brake lever is moved away from the vicinity of the grip portion, and the steering operation of the bar handle is performed. No trouble will occur. At the same time, when the parking brake lever is rotated to the braking position, the grip portion comes close to the crossbar and is protected by this crossbar, so that the grip portion may be accidentally touched during parking. The parking brake lever can be reliably held in the braking position without any problem.

Example of Invention

An embodiment of the present invention will be described below with reference to the drawings applied to a four-wheel golf cart.

In FIG. 6 and FIG. 7, reference numeral 1 is a frame made of a pipe material, and a front axle 3 for supporting the left and right front wheels 2, 2 is attached to the front portion of the frame 1.
A rear axle 5 supporting the left and right rear wheels 4, 4 is attached to the rear portion of the frame 1, and the rear axle 5 is rotationally driven by an engine (not shown). Further, at the rear end of the frame 1, a step 6 is installed as a boarding space in which the driver A stands upright, and the step 6 is located between the rear wheels 4, 4.

The frame 1 is extended to the front of the front wheels 2, 2 and a basket-shaped bag 8 for receiving the caddy bag 7 is attached to the front end of the frame 1.

Left and right steering support pipes 12, 12 extending obliquely upward and forward are led out from the rear portion of the frame 1. The front end portions of these steering support pipes 12, 12 are joined by a cross member 13, and this cross member 13
Steering head pipe 14 extending diagonally forward and downward
Is supported. The front ends of the steering support pipes 12, 12 are connected to each other in front of the steering head pipe 14, and a support 17 for supporting the upper portion of the caddy bag 7 is attached to the front end connection portion. A steering shaft 15 connected to the steering mechanism for the front wheels 2, 2 is inserted into the inside of the. The steering shaft 15 is vertically arranged vertically, and a bar handle 16 is connected to the upper end of the steering shaft 15.

As shown in FIG. 1, the bar handle 16 is connected to the upper end of the steering shaft 15 and extends in the vehicle width direction.
And left and right rising parts 18a, 19a extending upward from both ends of the connecting part 16a, and left and right grip parts 18, 19 extending outward in the vehicle width direction from the upper ends of these rising parts 18a, 19a. , So-called up type. Then, the upper end portions of the rising portions 18a, 19a are connected via a cross bar 23 extending in the vehicle width direction, and the presence of this cross bar 23 reinforces the bar handle 16 that is largely bent upward. There is.

In this bar handle 16, as shown in FIG.
A regular brake lever 20 of the left grip 18 is attached, and the brake lever 20 is connected to a caliper of a mechanical disc brake (not shown) via a brake wire 22. Also, on the right grip part 19,
The throttle lever 21 is attached.

As shown in FIG. 1 and FIG. 2, the bar handle 16 is
A parking brake lever 24 is provided separately from the regular brake lever 20. The parking brake lever 24 is in front of the crossbar 23, and when the bar handle 16 is viewed from the front, the connecting portion 16a and the left and right rising portions 18a, 19a.
It is located in the space surrounded by and.

The parking brake lever 24 includes a grip portion 25 extending substantially parallel to the cross bar 23, and an extension portion 2 extending downward between the right and left ends of the grip portion 25 between the rising portions 18a and 19a.
It has 6,26 and. This parking brake lever 24
It is constructed by bending a single pipe material, and the ends of the extended portions 26, 26 are pivotally supported by the rising portions 18a, 19a.

The explanation of this pivotal structure is as follows:
A pair of support pipes 28, 28 containing a nut 27 are welded to the peripheral surfaces of 18a, 19a. The support pipes 28, 28 are coaxial with each other, and the ends of the extensions 26, 26 face the open ends of the support pipes 28, 28. Bolts 30 are inserted through the collars 29 into the ends of the extension portions 26, 26, and the insertion ends of the bolts 30 are screwed into the nuts 27.

Therefore, as shown in FIG. 2, the parking brake lever 24 moves away from the braking position where the grip 25 is located immediately in front of the crossbar 23 and the grip 25 is located in front of the crossbar 23. It is pivotally supported on the bar handle 16 so as to be rotatable in the front-rear direction across the braking release position.

A wire holder 33 is welded to the support pipe 28 on the right side, and the outer tube 32 of the parking brake wire 31 is connected to the bottom surface of the wire holder 33 via an adjuster 33a. A bracket 34 is fitted inside the wire holder 33. The bracket 34 is welded to the extension 26 on the right side of the parking brake lever 24, and the inner cable 35 led out from the outer tube 32 is connected to the bracket 34. The inner cable 35 is connected to the caliper of the disc brake. Therefore, when the parking brake lever 24 is rotated rearward toward the braking position, the inner cable 35 is pulled upward via the bracket 34, and the disc brake is operated.

In addition, this tisk brake is a regular brake lever
It is adapted to be operated independently by operating either the 20 or the parking brake lever 24.

The parking brake lever 24 has a return spring 36
Is biased forward toward the braking release position. This urging causes the bracket 34 to move to the wire holder 33.
The grip portion 25 is held at a braking release position, which is separated from the crossbar 23 by a certain dimension L, by contacting the bottom surface of the crossbar 23. The dimension L is set within a range in which the fingertips of the hand hung on the crossbar 23 reach the grip 25, and the grip 25 of the parking brake lever 24 can be gripped with the crossbar 23 as a fulcrum. Has become.

On the other hand, a bracket 41 is welded to the central portion of the crossbar 23. The bracket 41 is opened toward the front, and a collar 42 extending in the left-right direction is rotatably supported at the open end of the bracket 41 via a pivot pin 43.

As shown in FIG. 2, a stopper 44 for holding the parking brake lever 24 in the braking position is connected to the collar 42. The stopper 44 has a plate shape extending toward the front grip portion 25. A bulging portion 45 that bulges in an arc shape upward from the rotation locus X of the grip portion 25 is formed at the leading end of the stopper 44, and at the rear end of the bulging portion 45. Has a locking recess 46 opened toward the rear crossbar 23. Further, at the front end of the bulging portion 45, an operating portion 49 extending obliquely forward and downward is integrally formed, and the operating portion 49 is located between the braking position and the braking releasing position of the parking brake lever 24. Has been done.

In such a configuration, when the driver A puts his / her finger on the grip portion 25 of the parking brake lever 24 and pulls the grip portion 25 toward the braking position toward the front during parking, the brake wire 31 The inner cable 35 of is pulled upward, and the disc brake is activated. At the same time, when the grip portion 25 comes into contact with the bulging portion 45 of the stopper 44 as the parking brake lever 24 rotates, the stopper 44 rotates downward about the collar 42. Then, by this rotation, the grip portion
When the 25 goes over the bulging portion 45, the stopper 44 is returned to rotate upward by the torsion coil spring 47, and the gripping portion 25 elastically engages with the locking recess 46. As a result, the parking brake lever 24 is automatically locked at the braking position while the inner cable 35 is being pulled.

Further, when releasing the braking by the parking brake lever 24, by once grasping the grip portion 25, the grip portion 25 is slightly rotated toward the braking position, and the grip portion 25 is locked. Recess 46
A little away from. Then, as indicated by the arrow in FIG. 2, the operating portion 49 at the front end of the stopper 44 is pressed downward with a fingertip, and the entire stopper 44 is rotated against the torsion coil spring 47, whereby the locking concave portion is formed. The 46 is shifted downward from the rotation locus X of the grip 25. Then, the grip 25 and the locking recess
Since the engagement with 46 is released, the parking brake lever 24
Is automatically turned back toward the front by the urging force of the return spring 36 and returned to the braking release position.

According to such an embodiment of the present invention, the parking brake lever 24 includes the left and right grip portions 18, 19 of the bar handle 16.
Since the bar handle 16 is arranged between the two, it does not hinder the steering operation of the bar handle 16, and the same operation can be performed with either the right hand or the left hand during parking.

And this gripping part 25 is a crossbar of the bar handle 16.
Since it is arranged within the reach of the fingertips of the hand hung on 23, this gripping portion 25 can be gripped with the crossbar 23 as a fulcrum. Therefore, the parking brake lever 24 can be lightly operated with a small force.

Further, when the parking brake lever 24 is rotated in the braking direction, the grip portion 25 thereof elastically engages with the locking recess 46 of the stopper 44, and the brake lever 24 is automatically held in the braking position. Therefore, the braking operation during parking can be performed with one hand. Therefore, the operability is improved as compared with the conventional one, and the parking brake lever 24 can be reliably held in the braking position, and the reliability of braking is improved.

Moreover, since the stopper 44 is arranged on the crossbar 23 of the bar handle 16 when the braking by the parking brake lever 24 is released, the stopper 44 and the grip portion 25 of the parking brake lever 24 are close to each other. They are in a positional relationship where they meet each other, and the pressing portion 49 of the stopper 44 is pressed by the fingertip of the hand holding the grip portion 25.
Can be pressed downwards. Therefore, the braking release operation of the parking brake lever 24 can be continuously performed with one hand, and the operability is improved.

Further, according to the above configuration, the bar handle 16 has an up shape having left and right rising portions 18a, 19a extending upward, so that the dead space between these rising portions 18a, 19a is effectively used. A parking brake lever 24 can be arranged. Therefore, the parking brake lever
Since 24 is moved away from the vicinity of the grip portions 18 and 19, no trouble occurs in the steering operation of the bar handle 16. Moreover, when the parking brake lever 24 is rotated to the braking position, the grip 25 is close to the crossbar 23, and the crossbar 23 is interposed between the grip 25 and the driver A. To be done.
Therefore, there is an advantage that the parking brake lever 24 can be reliably held at the braking position without accidentally touching the grip portion 25 during parking.

In the above embodiment, both ends of the parking brake lever are pivotally supported by the rising portions of the bar handle, but the present invention is not limited to this, and one end of the parking brake lever is pivotally supported by the bar handle. You can

Further, the small-sized vehicle according to the present invention is not limited to a four-wheeled vehicle, but can be similarly implemented with a three-wheeled vehicle having one front wheel or rear wheel.

〔The invention's effect〕

According to the present invention described in detail above, the driver can operate the parking brake lever with the right hand or the left hand in the same manner, and the operability is improved as compared with the related art.

The parking brake lever is automatically held at this braking position by simply rotating it toward the braking position, so that the braking operation during parking can be performed continuously with one operation. In addition, the parking brake lever can be reliably held in the braking position. Further, when the parking brake lever is rotated toward the braking position, the grip portion can be gripped with the crossbar of the bar handle as a fulcrum, and the braking operation of the parking brake lever can be performed with a light force. it can.

Furthermore, when releasing the braking by the parking brake lever, since the stopper and the grip portion are adjacent to each other,
The operation portion of the stopper can be pressed by the fingertip of the hand holding the grip portion, and the braking release operation of the parking brake lever can be continuously performed with one hand.

Further, according to the above configuration, since the parking brake lever can be arranged by utilizing the dead space between the rising portions of the bar handle, the parking brake lever does not interfere with the bar handle steering operation. At the same time, when the parking brake lever is rotated to the braking position, the crossbar of the bar handle is interposed between the grip section and the driver, so that the grip section should not be touched accidentally during parking. Without this, the parking brake lever can be reliably held in the braking position.

[Brief description of drawings]

The drawings show one embodiment of the present invention, FIG. 1 is a front view of the vicinity of a bar handle, FIG. 2 is a side view of a part of the vicinity of the bar handle, and FIGS. 3 and 4 are for parking. FIG. 5 is a perspective view of the golf cart, FIG. 6 is a side view of the golf cart, and FIG. 7 is a plan view of the golf cart. 2 …… front wheel, 6 …… step (boarding space), 15 …… steering shaft, 16 …… bar handle, 16a …… connecting part, 18,19 …… grip part, 18a, 19a …… starting part, 23… … Crossbar, 24 …… Parking brake lever, 25 …… Grip, 44 …… Stopper, 46 …… Locking recess, 49 …… Operating section, A …… Driver.

Claims (1)

[Claims] 1. A small vehicle in which a steering shaft for steering front wheels is vertically arranged in the vertical direction in front of a driver's riding space, and a bar handle is connected to an upper end of the steering shaft. The bar handle is connected to the upper end of the steering shaft and extends in the vehicle width direction, left and right rising parts extending upward from both left and right ends of the connecting part, and left and right connecting to the upper ends of these rising parts. The crossbar has a grip portion and a crossbar that connects the upper ends of the rising portions and extends in the vehicle width direction. The crossbar is in front of the crossbar of the bar handle, and when the bar handle is viewed from the front. The parking brake lever is arranged in a portion surrounded by the connecting portion and the left and right rising portions, and the parking brake lever is hung on the crossbar. Within the reach of the fingertips of the hand, there is a gripping part that is substantially parallel to this crossbar, and this parking brake lever has a braking position where the gripping part is close to the crossbar, and The bar handle is supported rotatably in the front-rear direction over a braking release position that is distant from the braking release position, and is constantly urged to rotate toward the braking release position via a spring. A stopper for holding the parking brake lever at the braking position when the parking brake lever is rotated toward the braking position is provided, and the stopper is elastic at the grip portion of the parking brake lever. And the locking recess that is engaged with the locking bar and that is open toward the crossbar, and that extends from the locking recess in a direction away from the crossbar. Parking brake system for a small vehicle, characterized in that it has an operation portion for releasing the engagement between the grip portion integrally.