JPH0885477A - Tractor - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tractor that allows easy inspection of the inside of the bonnet in consideration of easy removal of the bonnet side plate. A bonnet side plate 8 extending downward from both left and right sides of a bonnet top plate 7 located above the engine 3 is provided, and a frame 10 for mounting the pre-installed work machine is provided outside the bonnet side plate 8. In the tractor provided with the reinforcing frame 13, the bonnet side plate 8 is divided into upper and lower parts, and the bonnet side plate upper 23a is detachable, and
The reinforcing frame 13 is provided outside the bonnet side plate lower side 24.
To place.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a tractor.

[0002]

2. Description of the Related Art A tractor is equipped with a bonnet for covering an engine, a radiator, a battery and the like. This bonnet is located above the engine and the bonnet from both left and right sides of the bonnet top. It is composed of left and right bonnet side plates extending downward and a bonnet front cover located at the front ends of the bonnet top plate and side plates, and the bonnet side plate is removable for inspection inside the bonnet. .

Some tractors include a front work machine mounting frame for mounting a front work machine such as a front loader. This frame has a main frame that is vertically arranged outside the rear part of the left and right bonnet side plates and fixed to the tractor body, and a reinforcing frame is projected from the main frame to the front part of the reinforcing frame. The side is connected and fixed to a front axle frame projecting forward from the lower part of the engine.

[0004]

In the above-mentioned conventional one, since the bonnet side plate is one and the reinforcing frame of the front work implement mounting frame is located outside the bonnet side plate, When attaching / detaching the bonnet side plate for inspection of the inside of the bonnet, etc., it was difficult to attach / detach the bonnet side plate because the reinforcing frame became an obstacle.

In view of the above problems, it is an object of the present invention to provide a tractor which can easily inspect the inside of the bonnet even if it is equipped with a frame for mounting the front mounted work machine. .

[0006]

The technical means taken by the present invention to achieve the above-mentioned object is to extend downward from both left and right sides of a bonnet top plate 7 located above the engine 3. In a tractor having a bonnet side plate 8 and a reinforcing frame 13 of a front-loading work machine mounting frame 10 on the outside of the bonnet side plate 8, the bonnet side plate 8 is divided into upper and lower parts and a bonnet side plate upper part 23a is attached and detached. In addition to being free, the reinforcing frame 13 is arranged outside the bonnet side plate lower portion 24.

Further, it is preferable to connect the bonnet top plate 7 and the bonnet side plate lower part 24. Further, a pin 29 is provided at the lower end of the bonnet side plate 23a, and a pin insertion hole 25 into which the pin 29 is inserted from above is provided at the upper end of the bonnet side plate 24.
It is preferable to fix the upper part of a to the bonnet top plate 7 side.

[0008]

The bonnet side plate 8 is divided into upper and lower parts, and the bonnet side plate upper part 23 is detachable.
4, the reinforcing frame 13 of the front-mounted work implement mounting frame 10 is arranged, so that the reinforcing frame 13 does not become an obstacle for removing the bonnet side plate 23a, and therefore, the inspection of the inside of the bonnet 6 is performed. Etc. can be done easily.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a tractor, and a vehicle body 2 of the tractor 1 is mainly configured by directly connecting an engine 3 and a transmission case 4 containing a clutch, a transmission and the like. A front axle frame 5 projecting forward from the engine 3 is fixed to the front lower portion of the engine 3 by bolts. On the front axle frame 5, a radiator, a battery, an air cleaner support and the like are attached and fixed.

The engine 3, the radiator, the battery, etc. are covered with a bonnet 6.
Is a bonnet top plate 7 located above the engine 3 and the like.
And bonnet side plates 8 extending downward from the left and right ends of the bonnet top plate 7, and these bonnet top plates 7
And the hood front cover 9 located at the front end of the side plate 8
It is formed so as to be open rearward and downward from and.

Further, the tractor 1 is provided with a frame 10 for mounting a front-loading work machine at a front portion thereof.
At 0, a front loader 11 as a front-mounted work machine is mounted. The frame 10 includes a left and right main frame 12 in the up-and-down direction arranged on the left and right outer sides of the rear part of the bonnet 6, and left and right reinforcing frames 13 extending forward from each main frame 12, and each main frame 12
The lower portions of the above are detachably attached and fixed to the attachment bases 14 fixed to the left and right sides of the vehicle body 2, and the front portion of each reinforcing frame 13 is bent downward and is connected to the front axle frame 5.

The front loader 11 has left and right side frames 15 detachably attached to each main frame 12.
The base (rear end) of the boom 16 is pivotally attached to the upper portion of each side frame 15, and the left and right booms 16 are provided between the lower portion of the side frame 15 and the midway portion of the boom 16 in the longitudinal direction. The cylinder 17 can swing up and down.

A bucket 18 is pivotally attached to the tip portion (lower portion of the front end) of the boom 16, and the bucket 18 is attached to each boom 16.
The bucket cylinder 19 provided on the upper surface side of the front part of FIG. As shown in FIGS. 2 and 3, the bonnet top plate 7 is composed of an upper wall 7a and a side wall 7b integrally extending downward from the upper wall 7a, and is arranged in the front part of the bonnet 6. The air cleaner support 20 fixed to the front axle frame 5 and the bonnet support 21 fixed to the engine 3 and the like arranged at the rear of the bonnet 6 are attached and fixed. Further, the edge portion 22 on the lower end side of the side wall 7b of the bonnet top plate 7 is
It is bent inwardly in a stepped manner to have an L-shaped cross section.

The bonnet side plate 8 is a bonnet side plate upper 2
3 and the bonnet side plate lower 24 are divided up and down,
Further, the bonnet side plate upper 23 is divided into a front bonnet side plate upper 23a and a rear bonnet side plate upper 23b in the front and rear, and the frame 10 is provided outside the bonnet side plate lower 24.
The reinforcing frame 13 is arranged. It should be noted that grills 33 and 34 for introducing outside air are formed on the front bonnet side plate upper portion 23a and the bonnet side plate lower portion 24, respectively, and a dustproof mesh is provided on the inner surface side of the grilles 33 and 34.

The lower left and right hood side plates 24 are mounted and supported on the air cleaner support 20, the hood support 21, the front axle frame 5, and the like. Further, an edge portion 24a on the upper end side of each bonnet side plate lower portion 24 is bent inwardly in a stepped shape to form an L-shape, and a lateral wall portion of the edge portion 24a has a lateral wall portion as shown in FIG. The pin insertion holes 25 are formed at four positions in the front-rear direction at intervals, and the tubular member 26 corresponding to the pin insertion holes 25 is fixed to the lower surface of the lateral wall portion of the edge portion 24a.

As shown in FIGS. 3 and 4, the left and right bonnet side plates 23 are slightly curved outward, and the upper and lower edges 27, 28 are bent inward in the left-right direction. It is accommodated between the lateral wall portion of the edge portion 22 of the bonnet top plate 7 and the lateral wall portion of the edge portion 24a of the lower bonnet side plate 24. Further, a pair of front and rear pins 29 are fixed to the lateral wall portions of the lower edge portions 28 of the front and rear bonnet side plates 23a and 23b so as to project downward. By inserting the pin insertion hole 25 of the edge portion 24a and the tubular member 26 from above, the front and rear bonnet side plates 23a, 23b are provided.
The lower part of is attached and supported. Further, the upper portions of the front and rear bonnet side plates 23a and 23b are fixedly attached to the bonnet top plate 7 by fixing means (not shown) (for example, a method using screws, a method in which a latch is detachably engaged, etc.). To be done.

A connecting plate 30 is arranged on the inner side of the front end of the bonnet side plate 23a on the front side, and the upper end of the connecting plate 30 is overlapped with the inner surface of the vertical wall portion of the edge portion 22 of the bonnet top plate 7 and bolted. Fixed and connecting plate 3
The lower end side of 0 is welded and fixed to the inner surface of the vertical wall portion of the edge portion 24a of the lower bonnet side plate 24, and the distance between the bonnet top plate 7 and the lower bonnet side plate 24 is maintained.

A support plate 31 is arranged below and rearward of the connection plate 30, and the support plate 3 is provided.
The upper end of 1 is connected to the connecting plate 30, and the lower part of the support plate 31 is bolted to a bracket 32 fixed to the air cleaner support 20. In the above configuration, when inspecting the inside of the bonnet 6 or the like, first, the boom cylinder 17 is extended and the boom 16 is swung upward to a position where the boom 16 is disengaged upward from the bonnet side plate 23. Then, the upper part of the front bonnet side plate 23a is released from the fixed state, the front bonnet side plate 23a is tilted outward and moved upward, and the pin 29 is inserted into the pin insertion hole 2
Just pull out from 5. Also, on the front bonnet side plate 2
When the 3a is attached, the operation reverse to the above may be performed.

[0019]

According to the present invention, the bonnet side plate 8 extending downward from the right and left sides of the bonnet top plate 7 located above the engine 3 is provided, and the bonnet side plate 8 is provided on the outer side of the bonnet side plate 8. In the tractor including the reinforcing frame 13 of the front-mounted work machine mounting frame 10, the bonnet side plate 8 is divided into upper and lower parts, the bonnet side plate upper part 23 is made detachable, and the bonnet side plate lower part 24 is reinforced on the outer side. By disposing the frame 13, the bonnet side plate 23 can be easily attached and detached, and the reinforcing frame 13 of the front work implement mounting frame 10 does not become an obstacle when inspecting the inside of the bonnet as in the conventional case. The inside of the bonnet 6 can be easily inspected.

Further, by connecting the bonnet top plate 7 and the bonnet side plate lower part 24, the vertical interval between them is maintained, and when the bonnet side plate upper part 23 is attached / detached, there is no bad fit. Further, a pin 29 is provided at a lower end portion of the bonnet side plate 23, and a pin insertion hole 25 into which the pin 29 is inserted from above is provided at an upper end portion of the bonnet side plate 24 so that an upper portion of the bonnet side plate 23 is placed above the bonnet top plate. By fixing it to the 7 side, the bonnet side plate upper 23 is mounted between the bonnet top plate 7 and the bonnet side plate lower 24 from the upper side or detached to the upper side, so that the reinforcing frame 13 does not interfere. Has the effect.

[Brief description of drawings]

FIG. 1 is a side view of an outline of a tractor.

FIG. 2 is a side view of the bonnet.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a rear sectional view showing a mounting structure on a bonnet side plate.

[Explanation of symbols]

 3 Engine 7 Bonnet Top Plate 8 Bonnet Side Plate 10 Front Work Machine Mounting Frame 13 Reinforcement Frame 23 Bonnet Side Plate Upper 24 Bonnet Side Plate Lower

Claims (3)

[Claims] 1. A bonnet side plate (8) extending downward from both left and right sides of a bonnet top plate (7) located above the engine (3), the outside of the bonnet side plate (8) being provided. A frame (10) for mounting the front-mounted work machine
In the tractor provided with the reinforcing frame (13), the bonnet side plate (8) is divided into upper and lower parts, the bonnet side plate upper part (23a) is made detachable, and the reinforcement is provided outside the bonnet side plate lower part (24). Frame (13)
A tractor characterized by having a. 2. The tractor according to claim 1, wherein the bonnet top plate (7) and the bonnet side plate lower part (24) are connected to each other. 3. A pin (29) is provided at the lower end of the bonnet side plate (23a), and the bonnet side plate (2a) is provided.
A pin insertion hole (25) into which the pin (29) is inserted from above is provided at the upper end of (4), and the bonnet side plate (23) is provided.
The tractor according to claim 1 or 2, wherein the upper part of (a) is fixed to the bonnet top plate (7) side.