JPS6222454Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to the structure of the engine inside the bonnet of a tractor.

(b) Conventional technology and its problems Conventionally, the bonnet of a tractor has a built-in prime mover section, and mainly the engine,
Built-in air cleaner, exhaust fan, radiator, battery, fuel tank, etc.
The capacity of the prime mover is inevitably large, making the front of the tractor long, and hot air from the engine reaches the battery, fuel tank, etc., so it is necessary to provide a means of protection against the hot air, so each mechanism in the prime mover has This has disadvantages such as complicated arrangement.

Therefore, Utility Model Application No. 54-141718, Utility Model Application No. 54-
Publication No. 16807, Publication No. 135415 of 1983, and
As described in Japanese Utility Model Application Publication No. 55-75573, etc., it has been devised to shield the engine and the fuel tank, or the engine and the fuel tank, and the battery with a shielding plate. There is still a problem that sufficient battery protection is not provided.

In addition, in order to improve the visibility and flexibility of the feet of the operator seated in the operating section, the rear part of the bonnet side plate is made narrower, and the lower half of the bonnet side plate is moved from the front end to the rear end. A concave shape extending over the entire length is described in Japanese Utility Model Application Publication No. 54-135415 and US Pat. It wasn't something.

(c) Means for solving the problem In this invention, the in-bonnet prime mover section, which consists of the engine section and the battery, is divided into front and rear sections and shielded using shielding plates, and the front engine section and the rear battery are shielded. The upper corners of both sides of the shield plate are bent horizontally to form a bent flange, and at the same flange, the shield plate is connected to the upper edge of both cases of the prime mover section, and the upper edges of both cases are bent horizontally. The lower rear half is concave inward to provide a space on the left and right, the upper side of the space is located below the battery, the front side of the space is located behind the engine, and the lower half of the shield plate is located below the battery. By configuring the interior of the rear lower half of both cases, each of which has a concave shape, to shield the interior, the battery is placed above the space, and the engine is placed in front of the space. It is an object of the present invention to provide a structure for an in-bonnet motor unit of a tractor configured to prevent the transmission of power as much as possible.

(d) Functions and Effects In this invention, a concave space is formed on the left and right sides of the rear lower half of both cases, the battery is placed above the space, and the engine is placed in front of the space. Since the high heat from the engine is not transmitted to the battery, there is no problem of the battery being damaged by hot air from the engine.

Moreover, since the battery can be placed almost in the upper center of the machine, even if the machine tilts forward, backward, left, or right during work, the battery itself will not tilt significantly, and the battery will not swing. This prevents problems such as battery fluid leakage.

As described above, the present invention has the effect of reliably preventing damage to the battery due to heat and leakage of battery fluid.

In addition, the prime mover section consists of an engine section and a battery, and the fuel tank is omitted, so the internal structure of the prime mover section can be simplified and the overall length of the aircraft can be made more compact.
The continuous arrangement of the shielding plate and the cases on both sides has the effect that the casing structure of the prime mover including the bonnet can be strengthened.

In addition, the left and right spaces make it easier for the operator seated in the operating section to see the feet of the operator, and the degree of freedom of the feet of the operator increases, resulting in improved operability.

(E) Example The example of the present invention will be explained in detail based on the drawings.
A shows an agricultural tractor, in which a prime mover section 1 is installed at the front of the machine body a, and a driver's seat 2 is installed at the rear.
It has a front wheel 3 and a rear wheel 4 at the front and rear.

The motor unit 1 has a mask 5 on the front, cases 6 on both sides, and a bonnet 7 that can be opened and closed on the top side.
An operation panel 8 is disposed on the rear surface of the vehicle and forms a border with the driver's seat 2.

A shielding plate 9 is provided in the center of the prime mover section 1,
An engine 10, an air cleaner 11, a fan 12, and a radiator 13 are arranged in front of the shield plate 9, and a battery 14 is arranged behind the shield plate 9. A shielding plate 9 is interposed between them to block the hot air from the engine 10 from hitting the battery 14.

To explain in detail the mounting structure of the shielding plate 9, as shown in FIG. 4, the shielding plate 9 is installed between the cases 6 on both sides. However, the lower part extends narrower than the upper part, and the corners of the upper ends of both sides are bent horizontally in either the front or back direction to form bent flanges 15 and 16. The shielding plate 9 is attached to the upper edge of the case 6 on both sides via the bent flanges 15 and 16, and has the following continuous structure.

That is, the upper edges of both cases 6 are bent inward, and the leading edges are made lower to form a bonnet receiving edge 17. The bent flanges 15 and 16 of the shielding plate 9 come into contact with the lower surface of the bonnet receiving edge when the lid is closed, and by tightening and fixing with bolts 18, the shielding is completed. Attach and connect the plate 9.

In addition, the rear lower halves of both side cases 6 are formed inwardly in a concave shape to form a space S on the left and right sides, and the upper side surface S-1 of the space S is located below the battery 14, and the space S is formed on the left and right sides. The front side S-2 of S is the engine 1
0, and the lower half of the shielding plate 9 is arranged so as to shield the concave interior of the rear lower half of the both cases 6, so that the battery 14 can be arranged above the space S. At the same time, the engine 10 is disposed in front of the space S so that high heat from the engine 10 is not transmitted to the battery 14 as much as possible.

A first half of a step 19 is disposed on the lower end side of the space S formed in the rear lower half of the case 6 on both sides, and the step 19 extends to the front of the driver's seat 2 behind the motor section 1 It is located.

20 is the fender of the rear wheel 4, 21 is the main gear shift lever installed halfway up the fender 20, 22
2 is a fuel tank located behind the driver's seat 2 between the left and right fenders 20, 23 is a foot pedal, and 24 is a steering wheel.

The embodiment of the present invention is constructed as described above, and since the rear lower halves of both cases 6 are formed inwardly in a concave shape to provide a space S, the battery 14 is placed in the rear part of the bonnet. In this case, it can be stored compactly by the rear portions of the cases 6 on both sides and the shielding plate 9, and the lower half of the shielding plate 9 also shields the concave interior of the lower rear portion of the cases 6 on both sides. , the engine 10 in the prime mover section 1
The hot air is blocked by the shielding plate 9 and does not reach the battery 14, so that the battery 14 is not damaged by the high heat, and the shielding plate 9 also serves the function of reinforcing the cases 6 on both sides. This makes it possible to strengthen the casing structure of the prime mover section 1.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the tractor according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a partially cutaway side view of the prime mover, and Fig. 4 is an explanatory diagram of the main parts. . A: Agricultural tractor, 1: Prime mover, 9: Shield plate, 10: Engine, 14: Battery.

Claims (1)

[Scope of utility model registration request] The in-bonnet prime mover section 1, which consists of an engine section and a battery 14, is divided into the front and back by shielding plates 9, and the front engine section and the rear battery 14 are shielded, and the upper corners of both sides of the shielding plate 9 are shielded. A bent flange 15 is formed by bending the portion horizontally.
16, and the shielding plates 9 are connected to the upper edges of both cases 6 of the prime mover section 1 at the same flanges 15 and 16, and the rear lower halves of both cases 6 are formed inwardly in a concave shape. A space S is provided on the left and right, and the upper side S-1 of the space S is located below the battery 14,
The front side surface S-2 of the space S is located behind the engine 10, and the lower half of the shielding plate 9 is concave on both sides of the case 6.
By configuring the inside of the rear lower half to be shielded, the battery 14 is disposed above the space S, and the engine 10 is disposed in front of the space S, so that heat from the engine 10 is disposed in the battery 14. The structure of the motor under the bonnet of a tractor is configured to prevent the transmission of power to the maximum extent possible.