JP4110260B2 - Body frame of small tractor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a body frame of a small tractor, and more particularly to a body frame around a mounting portion of a steering post and a radiator bracket.
[0002]
[Prior art and problems to be solved by the invention]
In this conventional small tractor, an engine is mounted on the front portion of a vehicle body frame, a radiator is disposed on the rear portion thereof, a steering post is provided behind the radiator, and a steering wheel and a steering gear box are attached. However, since the radiator bracket for supporting the radiator and the steering post have relatively low mechanical strength, it is necessary to reinforce with a bracket or the like.
[0003]
Therefore, when attaching a radiator or fuel tank to the body frame of a small tractor, a technical problem to be solved in order to increase the rigidity of the radiator bracket and the steering post arises, and the present invention solves this problem. With the goal.
[0004]
[Means for Solving the Problems]
The present invention has been proposed in order to achieve the above object, place the radiator (12) in its rear by placing the engine (11) to the front portion of the vehicle body frame (10), said radiator (12 ) a small tractor in which a steering post (13) behind the lower the respectively body frame (10) of the lower and the steering post of the radiator bracket (14) supporting the radiator (12) (13) Further, left and right side frames (18, 18) project from the front portion of the steering post (13) , and the side frames (18, 18) and the radiator bracket (14) are connected to the left and right sides, respectively. Connected by tank holders (19, 19) , body frame (10) , steering post (13) and side frames (18, 18 ) The tank holder (19, 19) and the radiator bracket (14) form a substantially quadrangular bracket (20), and the radiator (12) and the fuel tank (21) are interposed between the left and right brackets (20, 20 ). In the body frame of the attached small tractor ,
The bottom plate (23) protruding below the steering post (13) supports the weight of the fuel tank (21), and a horizontal member (22) is installed between the side frames (18, 18). The fuel tank (21) is fixed, and the radiator bracket (14) is provided on the front side of the radiator (12). The steering post (13), the side brackets (18, 18), and the bottom plate ( 23) provides a body frame of a small tractor that supports the fuel tank (21) .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. 1 to 3, reference numeral 10 denotes a body frame of a small tractor. An engine 11 is mounted on the front portion of the body frame 10, a radiator 12 is disposed on the rear portion thereof, and a steering is disposed behind the radiator 12. A post 13 is erected. A radiator bracket 14 for supporting the radiator 12 is provided on the front side of the radiator 12, and the radiator bracket 14 and the lower portion of the steering post 13 are connected to the vehicle body frame 12 by means such as welding or bolting. .
[0006]
A steering shaft 15 is inserted into the steering post 13, and a steering wheel 16 is attached to the upper end portion of the steering shaft 15. A steering gear box 17 is attached to the lower end portion of the steering shaft 15, and the steering gear box 17 is fixed to the vehicle body frame 10 by bolting.
[0007]
Further, left and right side frames 18, 18 project from the front portion of the steering post 13, and the side frames 18, 18 and the radiator bracket 14 are connected by left and right tank holders 19, 19. A substantially quadrangular bracket 20 is formed by the body frame 10, the steering post 13, the side frame 18, the tank holder 19, and the radiator bracket 14.
[0008]
The radiator 12 and the fuel tank 21 are attached between the left and right brackets 20 and 20. A horizontal member 22 is installed between the side frames 18 and 18 to fix the flange of the fuel tank 21, and the weight of the fuel tank 21 is supported by a bottom plate 23 that is in contact with a lower position of the steering post 13. Thus, since the side bracket 18 and the bottom plate 23 are integrally fixed to the steering post 13, the number of parts for supporting the fuel tank 21 is reduced, and the assemblability is improved.
[0009]
On the other hand, a wind shielding plate 24 is provided in front of the radiator 12, and an upper end portion of the wind shielding plate 24 extends to the engine hood 25. An air cleaner 26 is provided in front of the wind shield plate 24, and a front end portion 27 b of an air inlet hose 27 connected to a side surface of the air cleaner 26 protrudes rearward of the wind shield plate 24.
[0010]
As shown in FIGS. 4 to 6, the air inlet hose 27 is piped rearward to a side portion of the air cleaner 26, and a tip end portion 27 b of the air inlet hose 27 is opened in the wind shielding plate 24. It protrudes to the rear of the wind shield plate 24 through the hole 28. By inserting the air inlet hose 27 through the hole 28, the air inlet hose 27 can be easily positioned, and the sealing performance of the wind shielding plate 24 can be improved without using an expensive molded tube. .
[0011]
The air inlet hose 27 is formed of a flexible material such as rubber, and an intermediate portion 27 c is sandwiched between U-shaped mounting brackets 29. Since the mounting bracket 29 is formed with a width narrower than the outer diameter of the air inlet hose 27, the intermediate portion 27c of the air inlet hose is clamped from the left and right, so that the cross-sectional shape of the intermediate portion 27c is compared with the other portions. It has become a variant. In this way, by holding the flexible air inlet hose 27 with the mounting bracket 29, it is possible to prevent flapping noise during intake.
[0012]
It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
[0013]
【The invention's effect】
As described in detail in the above embodiment, the present invention connects a radiator bracket and a lower portion of a steering post to a vehicle body frame of a small tractor, and a side frame and a radiator bracket projecting from the front portion of the steering post. Are connected by left and right tank holders. Then, this or the like is formed a bracket of a substantially quadrilateral by the body frame and the radiator bracket and the steering post, etc., since the radiator and the full Interview Erutanku between the left and right brackets are attached, the assembly for mounting the steering post and the radiator bracket And the rigidity of the support member can be increased to prevent breakage due to vibration.
Further, the weight of the fuel tank is supported by a bottom plate protruding below the steering post, a horizontal member is installed between the side frames to fix the fuel tank, and the radiator bracket is Since the fuel tank is supported by the steering post, the side bracket, and the bottom plate provided on the front side of the radiator, the number of parts for supporting the fuel tank is reduced and the assemblability is improved.
[Brief description of the drawings]
The figure shows an embodiment of the present invention.
FIG. 1 is a side view of a body frame and an engine hood of a small truck.
FIG. 2 is a side view of a vehicle body frame.
FIG. 3 is a view taken along the line AA in FIG. 2;
FIG. 4 is a side view of an air inlet hose connected to an air cleaner.
FIG. 5 is a view taken along the line BB in FIG. 4;
6 is a view taken along the line CC of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Body frame 11 Engine 12 Radiator 13 Steering post 14 Radiator bracket 18 Side frame 19 Tank holder 20 Bracket 21 Fuel tank

Claims (1)

A small tractor in which an engine (11) is mounted on a front portion of a vehicle body frame (10) , a radiator (12) is disposed on a rear portion thereof, and a steering post (13) is provided behind the radiator (12). The lower part of the radiator bracket (14 ) that supports the radiator (12) and the lower part of the steering post (13 ) are connected to the vehicle body frame (10) , and the left and right sides of the steering post (13) are connected to the left and right sides. as well as projecting side frames (18, 18), and said with said side frames (18, 18) the radiator bracket (14) connected with respective left and right tank holder (19, 19), this such a vehicle body frame ( 10) , steering post (13) , side frame (18, 18 ), tank holder (19, 19), and radiator bracket (1 4) to form a substantially quadrangular bracket (20), and the body frame of the small tractor in which the radiator (12) and the fuel tank (21) are attached between the left and right brackets (20, 20 ) .
The bottom plate (23) protruding below the steering post (13) supports the weight of the fuel tank (21), and a horizontal member (22) is installed between the side frames (18, 18). The fuel tank (21) is fixed, and the radiator bracket (14) is provided on the front side of the radiator (12), and the steering post (13), the side brackets (18, 18), and the bottom plate ( 23) and a fuel tank (21) for supporting the vehicle body frame of the small tractor.

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