JPH05208057A - Chassis structure of four-wheel standing ride type golf cart - Google Patents

Abstract

PURPOSE:To simplify structure by reducing the number of constitution elements of a chassis structure, securing the necessary rigidity by forming a chassis frame which supports two front wheels and two rear wheels to a lower part frame having a nearly rectangular shape and installing an upper part frame having a mountain shape on the side view. CONSTITUTION:A chassis frame which supports front two wheels 2 and rear two wheels 3 is formed as a lower part frame 4 having a nearly rectangular shape, and an upper part frame 6 having a mountain shape on the side view is installed on the lower part frame 4. Further, a box shaped cover body 5 which is opened downward is formed so that a driving device covering part which covers the driving device 30 such as an engine mounted at the rear part of the lower part frame 4 and fender parts 5b and 5c which cover the front and rear wheels are formed integrally, and the upper surface 5d is formed nearly flat, and the cover body 5 is applied over the upper part frame 4 and installed by screws, etc., and a handle shaft tilted rearward is supported on the upper part frame 6. The center at the rear part of the cover body 5 is recessed to the inside, and a step 7 for a driver A such as a caddy in standing state is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to a body structure of a self-propelled standing four-wheeled golf cart for a caddy. In addition, a four-wheeled golf cart whose driving operation can be easily and easily carried out like a motorcycle, that is, a golf bag is mounted on a vehicle body, and can be jumped from the rear of the vehicle and jumped backward, It is located behind the axle of the rear two wheels and close to the lower running ground, and the driver's step for standing up and driving with the driver such as a caddy standing up, and standing up from the cart body and tilting backward For a four-wheel standing golf cart equipped with the above handle shaft, the manufacturing cost is reduced by simplifying the body structure and reducing the weight, and the body structure is simplified. In which it can facilitate maintenance.

[0002]

2. Description of the Related Art A conventional self-propelled four-wheel golf cart for a caddy is one in which the caddy is driven while it is traveling, and is not one in which the caddy stands and drives. There are so-called self-driving golf carts in which several players ride together and drive by hand, but these are so-called automobiles and are not the self-propelled four-wheel golf carts for caddies that are the subject of the present invention. It is well known that a self-propelled golf cart for each golf player can stand up (Japanese Utility Model Laid-Open No. 53-73667), but this is extremely high in production cost despite its availability, and has been put to practical use. Not in.
If you carry a lot of golf bags on this one and make it large enough to allow the caddy to stand up and move quickly, it will become large and the total weight of the vehicle will increase, so you should install an electric motor or engine with a large output. I need. As the engine output increases, not only the vibration increases and the engine noise increases, but also the high rigidity of the vehicle body structure is required, and the total weight of the vehicle body increases. A golf cart for a caddy that allows the caddy to stand up and move quickly is essential for practical use, and for that purpose, the desired running performance is achieved with the smallest possible engine output. It must be able to demonstrate its performance, and in order to achieve the desired driving performance with the smallest possible engine, it is necessary to reduce the weight of the vehicle body structure as much as possible. Further, since the maintenance of the golf cart is carried out at each golf course, a simplified body structure is required.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to meet both of the above demands, and a lightweight lower frame and an upper frame can ensure necessary rigidity, and the number of constituent elements of a vehicle body structure can be reduced. It is an object of the invention to simplify the structure, enhance the soundproofness of a drive unit such as the engine, and allow sufficient air cooling.

[0004]

[Means for Solving the Problems] The measures taken for solving the above problems are constituted by the following elements (a) to (d). (A) The body frame supporting the front two wheels and the rear two wheels is a substantially rectangular lower frame, and (b)
The upper frame, which is mountain-shaped when viewed from the side, is attached to this lower frame, and (c) the box-shaped cover body that opens downwards,
The drive device cover part that covers the drive device such as the engine mounted on the rear part of the lower frame is integrally formed with the fender part that covers the front wheel and the rear wheel so that the upper surface is substantially flat. It was mounted on the lower frame by covering it from above, and (d) the mountain-shaped upper frame supported a handle shaft inclined rearward.

[0005]

[Operation] Since the vehicle body frame supporting the front two wheels and the rear two wheels is composed of a substantially rectangular lower frame, it can be made of pipe material, and therefore the lower frame itself can be made extremely lightweight, and Its structure is simple and easy to manufacture. Since the front axle and the rear axle are supported by the lower frame, the axle support structure is also simple. When the box-shaped cover body that opens downward is placed over the lower frame from above and attached to the lower frame, the drive device such as the engine for driving rear wheels mounted on the rear part of the lower frame will be the drive device cover part of the cover body. The front wheel and the rear wheel are covered by a fender integrated with the cover body. Since the upper frame is substantially mountain-shaped, it can be manufactured by bending the pipe material into a mountain shape. Therefore, the upper frame itself can be made extremely lightweight, and its structure is simple and easy to manufacture. By attaching this upper frame to the lower frame, the lower frame is reinforced and its rigidity is further improved. With the axles of the front and rear wheels supported by a substantially rectangular lower frame and attached to the lower frame, the upper surface of the box-shaped cover body becomes substantially horizontal, and it is easy to install a caddy compartment or the like thereon. Also, when the cover body is removed from the lower frame, the drive device cover portion and the front and rear wheel fenders are removed at the same time.
And the drive is exposed. Therefore, these maintenances can be easily performed.

[0006]

[Examples] Next, examples will be described with reference to the drawings. This golf cart 1 has a small diameter front wheel 2 located on the front left and right of a lower frame 4 and its axle supported by the lower frame, and a rear wheel located on the rear left and right of the lower frame 4 with its axle supported by the lower frame 4. Large rear wheel 3
And a cover body 5 that is a box-shaped cover that opens downward and covers the lower frame and the drive devices for the front wheels, rear wheels, rear wheels, and the like.
And an upper frame 6 having a mountain-like shape in a side view, which is detachably attached to the lower frame by screws or the like. The center of the rear part of the cover body 5 is recessed inwardly, whereby a driver step 7 on which a driver A such as a caddy stands is formed. This step makes the center of gravity as low as possible and makes it as close as possible to the ground for jumping and jumping. The cover main body 5 is provided with a drive device cover portion 5a at the center of the rear part thereof, and the drive device cover portion 5a covers the rear wheel drive device 30 such as an engine mounted on the rear portion of the lower frame 4. There is. Further, fenders 5b and 5c are integrally provided on the front and rear sides and the right and left sides of the cover body 5, and an upper surface 5d thereof is a substantially flat horizontal surface. Thus, since the upper surface of the cover body is substantially flat, it is easy to install a caddy compartment or the like. When the cover body is attached to the lower frame 4, the fenders 5b and 5c cover the front wheels and the rear wheels. By the way, since the upper surface of the cover body is a substantially flat horizontal surface and the front wheel 2 has a smaller diameter than the rear wheel 3, the front wheel 2
The vertical distance d between the fender 5b and the fender 5b is sufficiently large, and therefore, long turfgrass scattered and scattered during the cutting operation is not caught in the gap. A handle shaft 9 for operating the steering mechanism S of the front wheels 2 is inclined obliquely rearward, a lever handle 8 is fixed to the upper end thereof, and a grip 10 thereof is located above the driver's step 7. The lower frame 4 has a substantially rectangular box shape and extends in the front-rear direction. The lower frame 4 is made of a pipe material and can secure a sufficient rigidity. The upper frame 6 includes a pair of left and right side frames 6a extending in the front-rear direction at the center of the cover body 5 and extending across the front and rear portions of the lower frame, and a cross frame 6b connecting the side frames 6a. 6b supports the lever handle 8 via a handle shaft 9. Like the lower frame, this upper frame can also be made of pipe material. The bag mounting frame 16 provided in front of the upper frame 6 supports a plurality of caddy bags in a state of being arranged in the vehicle width direction at an angle, and the receiving portion 16a thereof is located in front of the front wheel 2. is doing. The receiving portion 16a is provided with a holding member 18, and the holding portion holds the bottom of the caddy bag. A support member 19 is provided on the upper portion 16b of the bag mounting frame 16 to support the upper portion of the caddy bag. The weight of the golf bag in front and the weight of the caddy on the driver's step at the rear end when the golf bag receiving part is projected forward from the front wheel and the golf bag mounting frame is fixedly mounted on the tip of the mountain-shaped upper frame. Balances and the center of gravity of the total weight is applied to the approximate center of the lower frame during running, so unbalanced force does not act on the lower frame, and the rigidity of the lower frame can be reduced accordingly. The structural design of the lower frame becomes easier. Reference numeral 22 is a passenger step in which both sides of the cover body 5 are recessed inward, 22a is an inner tread plate integrally provided with the cover body 5, and 22b is pivotally attached to the outer edge of the inner tread plate 22a by a hinge 23. Outer footboard, step 24 for passengers
A handle gripped by a passenger riding on 2, 11 is a throttle lever, 12 is a brake lever, 17 is a caddy bag,
20 is a golf club.

[0007]

The above-mentioned problems of the present invention are novel, and therefore, it was possible to solve this problem and put into practical use a four-wheel standing golf cart for a caddy equipped with a large number of caddy bags. This is a unique effect. That is,
With the vehicle body structure of the present invention, a practical four-wheel standing golf cart for caddy could be realized. Also, because the cover body is a box-like shape that opens downward, the drive unit such as the engine is covered from the top so that the drive unit is completely invisible, and the soundproof property is improved. Is completely open, so that the drive device can be sufficiently air-cooled. For example, JP-A-60-5
In the case where the drive device is housed in the box-shaped lower frame as described in Japanese Patent No. 5974, the problem of insufficient cooling remains when the drive device having a large heat generation amount is used, but the present invention has this problem. There is no.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line YY of FIG.

FIG. 4 is a side view showing a lower frame and an upper frame.

FIG. 5 is a plan view showing a lower frame and an upper frame.

[Explanation of symbols]

 1 ... Golf cart 2 ... Front wheel 3 ... Rear wheel 4 ... Lower frame 5 ... Cover body 6 ... Upper frame 7 ... Driver step 5a ... Drive device cover Parts 5b, 5c ... Fender 5d ... Upper surface of cover body 30 ... Drive device

Claims (1)

[Claims] 1. A cart main body equipped with two front wheels and two rear wheels, which is self-propelled, and which is positioned behind the axles of the two rear wheels of the cart main body, close to the traveling ground below, and stands upright with the driver standing. In a four-wheel standing golf cart equipped with a driver's step for riding and driving, and a handle shaft that stands up from the cart body and is inclined rearward, a body frame that supports the front two wheels and the rear two wheels is formed into a substantially rectangular shape. A lower frame, an upper frame that is mountain-shaped in side view is attached to this lower frame, and a box-shaped cover body that opens downward is used to cover the drive device cover and front wheels that cover the drive device such as the engine mounted on the rear part of the lower frame. The fender portion that covers the rear wheel is formed integrally with the upper surface so that the upper surface is substantially flat, and the cover body is placed on the lower frame from above and attached to the lower frame. The body structure of a four-wheeled standing golf cart in which the handle shaft is supported on the upper frame.