JPS6113409Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a bonnet installed on an agricultural tractor.

[Prior art]

Recently, in this type of agricultural tractors, especially large agricultural tractors, the bonnet shape has been changed so that the top plate is slanted so that the front plate is low and high in the rear, from the viewpoint of design, aesthetics, and to improve forward visibility. A so-called forward leaning type is being considered.

However, as shown in Fig. 7, when the top plate b (length L) of the bonnet a installed on a certain tractor A is tilted forward at an angle θ, the bonnet a and the panel body c are not aligned. If they are close to each other, use the same material and press mold as bonnet a, cut the rear of bonnet a by △L, and make bonnet a' with a different length (length L' of top plate b'). When this is assembled with the panel body c' of tractor B, which has a short fuselage length, as shown in Figure 8, the bonnet is created.
△L×tanθ between the top plate b′ of a′ and the panel body c′
There is a problem in that a step E is created by that amount, resulting in an unsightly appearance.

Therefore, in order to eliminate this step E, either change the inclination angle θ of the bonnet top plate b' or change the panel body.
It is possible to manufacture each of c' separately, but this requires a large number of press molds, resulting in a new inconvenience that increases costs.

[Purpose of invention]

The present invention was devised in order to solve these problems in view of the above-mentioned conventional circumstances, and involves cutting pre-fabricated long bonnet material into required lengths to suit various tractor sizes. The object of the present invention is to provide a bonnet for an agricultural tractor, which allows a forward-tilting bonnet to be manufactured by simply doing the following steps.

[Structure of the idea]

The bonnet of an agricultural tractor of the present invention which achieves the above object is an agricultural tractor equipped with a forward-tilting bonnet in which the top plate is inclined to be low in the front and high in the rear. facing the front end of the panel body fixed in front of the panel body with a wide spaced apart part therebetween;
A fuel tank cover that covers the upper side and both left and right sides of the fuel tank and has a gutter-like cross section is disposed below the separation, and the fuel tank cover is integrally connected to the panel body at the rear, and The front part is characterized by extending into the bonnet with a vertical gap formed between it and the top plate.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be explained.

As shown in FIG. 1, an engine 3 is mounted at the front of a traveling body C that supports front wheels 1 and rear wheels 2, and the power of this engine 3 is transmitted to the rear wheels 2 via a transmission 4. The vehicle is designed to drive the traveling body C in the longitudinal direction. 5 is the driver's seat 6
This panel body 5 is fixed to the fuselage C side via a bracket 7a of a steering column 7 and a fuel tank bracket 9 attached to a clutch housing 8.

10 is the band 10 on the fuel tank bracket 9
The fuel tank 10 is fixed through a cap 10c, and a fuel filler port 10b having a cap 10c projects from the upper surface of the fuel tank 10.

On the other hand, reference numeral 11 is a forward-tilting bonnet in which a top plate 11a having a length L ₁ is inclined at an angle of inclination θ such that the top plate 11a is lower in the front and higher in the rear. The bonnet 11 is rotatably supported, and the rear end of the bonnet 11 is opposed to the front end of the panel body 5 at a wide distance l. A front grill 11b is integrally incorporated into the front surface of the bonnet 11. 13 is the side plate 1 of the bonnet 11
This side cover 13 is installed vertically below 1a, and protects the rotating parts of the engine 3, and protects the panel body 5 and chassis 1.
2, respectively.

The rear end of the bonnet 11 and the panel body 5
A fuel tank cover 14 is disposed below the wide gap 1 formed between the front end of the fuel tank 10 and the fuel tank cover 14, which is formed in a substantially gate-like shape when viewed from the front so as to cover the upper side and both left and right sides of the fuel tank 10. Both front and rear ends of the fuel tank cover 14 are formed into a gutter-like cross-section by rising up and bending in the shape of a brim. The rear bent portion 14' of the fuel tank cover 14 is integrally connected to the panel body 5 via bolts 15 and nuts 15a, and the front bent portion 14'' side is connected to the top plate 11a.
The fuel tank cover 14 and the bonnet 11 extend into the bonnet 11 with an appropriate distance H ₁ in the vertical direction between them, and the entire body from the front end of the fuselage C to the panel body 5 is covered by the fuel tank cover 14 and the bonnet 11. It is becoming more and more popular.

Reference numeral 14a denotes a wind shielding plate that is integrally connected and fixed to the fuel tank cover 14 so as to shield between the engine 3 and the fuel tank ₁₀ . , H ₂ , l (see Fig. 4), and this wide space S allows the fuel tank cover 5 located below to A vent for discharging heat generated within the bonnet 11 and a discharging guide path for spilled fuel are constructed. In addition, 1 in the figure
6 is a radiator.

Although the present invention is constructed as described above,
The present invention will be described with reference to FIGS. 5 and 6 for the case where the present invention is attached to a plurality of agricultural tractors having bonnets having the same inclination angle .theta. and having different body lengths. FIG _. 6 shows a tractor T using the type of bonnet _{11 of} the tractor T shown in FIG. ', the dimensions of the engine 3', chassis 12' and side cover 13' are different from those of the tractor T, but the transmission 4, clutch housing 8, steering column 7, panel body 5, fuel tank The cover 14 and the like are common to both. In this case, the rear end of the bonnet 11 of the tractor T is
A bonnet 11' formed by cutting ΔL to match the dimension of T' can be attached to the tractor T'.

By cutting the above △L dimension, the height difference (△L) is created at the rear end of the bonnet top plate as shown in Fig.
xtanθ), but this difference in height can be made less noticeable by the wide separation S formed between the bonnet 11' and the panel body 5.

In other words, if the rear end of the bonnet and the front end of the panel body are close to each other as shown in FIG. In the design, the rear end of the bonnet faces the front end of the panel body at a wide distance l,
Moreover, a fuel tank cover 14 is disposed below this wide space, and these bonnets 1
1. As shown in FIG. 4, a wide gap S consisting of H ₁ , H ₂ , and l is formed between the panel body 5 and the fuel tank cover 14. This is because the appearance of the distance due to the above-mentioned height difference is alleviated as much as possible.

Therefore, the forward-leaning bonnet 11 of the present invention has the following features:
You can make the bonnet with a longer length in advance and simply cut it to the required length to suit the various tractor sizes, so even if the tractor size is different, the bonnet press mold and The same material can be used for both, and this allows mass production to be achieved by using the same bonnet material and press mold, thereby significantly reducing costs.

Further, while the tractor is in operation, the hot air inside the bonnet 11 heated by the engine 3 is sent rearward by the fan 16a of the radiator 16, and then is passed through the air shield plate 14a integrally fixed to the fuel tank cover 14. Intrusion into the fuel tank 10 side is prevented, and the fuel leaks out of the aircraft through the vertical gap formed between the top plate 11a at the rear end of the bonnet 11 and the front end of the fuel tank cover 14 through the separation part S. It is discharged. In this case, fuel tank cover 1
Since the rear end bent portion 14' of 4 is integrally connected to the panel body 5, the hot air is prevented from entering the panel body 5 and flowing out to the driver's feet.

On the other hand, when refueling the fuel tank 10, even if
Even if fuel spills from the fuel filler port 10b, since the fuel tank cover 14 has a gutter-like cross-sectional shape, the spilled fuel will be placed laterally along the top surface of the fuel tank cover 14 and will not flow further downward. and is promptly ejected from the aircraft. Therefore, it is possible to reliably prevent the risk of spilled fuel getting into the engine 3 and causing a fire. The fuel tank cover 14 also serves as a drainage path for rainwater and the like.

Further, the fuel filler port 10b of the fuel tank, which protrudes from above the fuel tank cover 14, can be located in the wide space S formed between the rear end of the bonnet 11 and the front end of the panel body 5. Therefore, refueling can be performed by opening and closing the cap 10c while keeping the bonnet 11 closed.

[Effect of idea]

In short, the bonnet of the agricultural tractor of the present invention is an agricultural tractor equipped with a forward-tilting bonnet with a top plate that slopes forward and backward, and is fixed at the rear end of the bonnet and in front of the driver's seat. The front end portion of the panel body is placed opposite to the front end of the panel body with a wide spaced apart part formed therebetween, and a fuel tank cover covering the upper side and both left and right sides of the fuel tank and having a gutter-like cross section is disposed below the spaced apart part. This fuel tank cover is integrally connected to the panel body at the rear, and extends into the bonnet with a vertical gap between it and the top plate at the front. The forward-sloping bonnet, which has a low front and a high rear, has a wide gap formed between the rear end and the front end of the panel body, which reduces the height difference between the front end and the panel body. This reduces the discomfort, and allows you to create a forward-leaning bonnet by simply cutting a pre-made long bonnet material to the required length to suit various tractor sizes. By using the same materials and press molds, mass production can be achieved and costs can be significantly reduced.

Moreover, the fuel tank cover provided below the separation, which covers the upper side and both left and right sides of the fuel tank, has a gutter-like cross section, so that it can be used as a guide gutter for discharging overflowing fuel. The vertical gap formed between the bonnet and the top plate allows it to be used as a discharge guide path for discharging hot air inside the bonnet.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a vertical cross-sectional view of the agricultural tractor, Figure 2 is a vertical cross-sectional view of the main parts, Figure 3 is a vertical front view of the main parts, Figure 4 is an explanatory diagram of the functions of the main parts, and Figure 5 is the length. FIG. 6 is a side view of a tractor T having a bonnet of L _1. FIG. 6 is a side view showing the rear part of the bonnet in FIG. FIG. 8 is a side view of a conventional tractor. 5... Panel body, 6... Driver's seat, 10...
Fuel tank, 11... bonnet, 14... fuel tank cover, S... separation part.

Claims (1)

[Scope of utility model registration request] In an agricultural tractor equipped with a forward-tilting bonnet in which the top plate is inclined to be low in the front and high in the rear, the rear end of the bonnet and the front end of a panel body fixed in front of the driver's seat are formed wide. A fuel tank cover that covers the upper side and both left and right sides of the fuel tank and has a gutter-like cross section is disposed below the gap, and the fuel tank cover is connected to the panel at the rear. A bonnet for an agricultural tractor, characterized in that it is integrally connected to a body and extends into the bonnet at the front with a vertical gap formed between it and a top plate.