JPS6026181Y2 - Cover structure of radiator cooling part in agricultural tractor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cover structure for a radiator cooling section in an agricultural tractor.

That is, in an agricultural tractor having a configuration in which a cooling fan driven by the engine is disposed between the radiator and the engine, and the upper part is covered with a horn, the hot air sent out by the cooling fan is dispersed outwardly. To provide a simple structure so that an engine can be cooled well and the cooling fan can be covered from the sides and rear to ensure safety.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of an agricultural tractor, where 9 is the front wheel, 1
0 is the rear wheel, and 11 is the handle.

At the front of the aircraft, a radiator 3 is installed above a frame 12 installed below and in front of the engine 1 at a distance from the engine 1.
In between, a cooling fan 2, which is rotatably driven by a belt pulley 13 consisting of one ■belt and two ■pulleys, is installed from the engine 1 side in the same manner as in the conventional structure.
A bonnet 4 that can cover the upper part from the radiator 3 to the engine 1 is installed so that it can be opened and closed by rotating around a fulcrum 0 at the front lower part.

Also, at the rear of both sides of the radiator 3, there are side covers 5 that can cover both sides of the cooling fan 2 from above to below.
5' are connected and stretched, and both side covers 5, 5'
The rear end of the cooling fan 2 is extended to the rear of the belt pulley 13 and bent inward into an L shape to form a rear cover 6.6' that can cover both rear sides of the cooling fan 2 and both rear sides of the belt pulley 13. Side covers on both sides 5゜5
A large rectangular opening 14.14' is formed in the part ', and mesh bodies 7 and 7' are stretched over the openings 14 and 14', respectively. Part cover 5, 5
A small square opening 15.15' is formed in the lower part of the cooling fan 2, and mesh bodies 7 and 7' are respectively stretched over the openings 15 and 15'. In the part, there are mesh bodies 8, 8 in the large square openings 16 and 16'.
′.

As a result, both sides and rear sides of the cooling fan 2 and the belt pulley 13 are covered, and although the cooling fan 2 can be seen through each mesh body, it is not possible to insert a hand into the cooling fan 2 and the belt pulley 13. It becomes a safe structure.

Further, the radiator 3 is cooled by the cooling fan 2, and the hot air sent out by the cooling fan 2 is scattered through the surrounding mesh bodies, thereby making it possible to efficiently cool the engine.

In this way, the present invention disposes the cooling fan 2 driven by the belt pulley 13 from the engine 1 between the radiator 3 and the engine 1, and both sides of the cooling fan 2 are covered by the side covers 5, 5'. Cover and further cover 5 on both sides,
The rear end of 5' is extended to the rear of the belt pulley 13 and bent inward into an L shape, and the bent part is inserted between the belt pulley 13 and the engine 1 to form both rear covers 6 and 6'. Since the mesh body is stretched over the top and bottom of both side covers 5, 5' and both rear covers 6°6', unlike the conventional cover structure, it is bent at the rear of the belt pulley 13 to form both rear covers. Safety can be maintained by having both rear covers against insertion of hands and fingers from the rear surface of the belt pulley 13, and both side covers 5, 5' made of flat plates
If left as is, the rear end would vibrate or tremble due to the cooling air blowing out from the cooling fan 2 and the rotational vibration of the cooling fan 2. Since it is extended to the rear end and inserted between the belt pulley 13 and the engine 1, it is strong and can eliminate the vibration and noise mentioned above.The upper part is covered with the bonnet 4, so the cooling fan There is no need to process the cover along the outer periphery of the cover, and it can be manufactured by bending a flat plate, so it can be manufactured without requiring high processing precision or advanced processing technology.

In addition, the hot air sent out by the cooling fan 2 can be dispersed outwardly through the surrounding mesh bodies,
The engine 1 can be cooled efficiently, and since both rear covers are located after the belt pulley 13, which is separate from the cooling fan 2, the fan is more efficient than if it were located directly behind the fan. Since the rear covers 6 and 6' also serve as safety covers, there is enough room for the openings to be formed by cutting off both rear covers 6 and 6', allowing cooling air to pass through without resistance, allowing the outer periphery of the engine 1 to be cooled by strong cooling air. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of an agricultural tractor, Fig. 2 is an enlarged view of a part thereof, Fig. 3 is a side view of the main part, and Fig. 4 is an IV of Fig. 3. 5 is a cross-sectional view taken along line -IV, and FIG. 5 is a cross-sectional view taken along line ■--■ in FIG. 1...Engine, 2...Cooling fan,
3...Radiator 4...Bonnet, 5.5'...Side cover, 6,6'...
...Rear cover, 7.7a. 7', ? 'd, 8.8'...Mesh body, 13
・・・・・・Belt pulley

Claims (1)

[Scope of utility model registration request] A cooling fan 2 driven by a belt pulley 13 from the engine 1 is disposed between the radiator 3 and the engine 1, and both sides of the cooling fan 2 are covered with front side covers 5, 5'. .5' rear end is extended to the rear of the belt pulley 13, bent inward in a single-shape, and the bent part is inserted between the belt pulley 13 and the engine 1, and both rear covers 6, 6' and the waist are bent. The cover structure of the radiator cooling section is made up of a mesh body stretched over the top and bottom of both side covers 5, 5' and both rear covers 6, 6'.