JPS585076Y2 - Heat shielding device for the engine room of a tractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat shielding device for an engine compartment of a tractor to prevent heat generated by the engine from spreading outside the engine compartment within the bonnet.

For tractors with a structure in which the engine is housed in an engine room formed within the bonnet, and the fuel tank, battery, etc. are housed adjacent to the engine room, this is to protect the fuel tank, battery, etc. from heat generated by the engine. Conventionally, some kind of heat isolation means has been provided between the engine room and a housing part such as a fuel tank.

By the way, there is one case in which a heat shield plate is simply hung from the back side of the bonnet top plate, which can be rotated to open and close using one end as a fulcrum, so as to correspond to the boundary between the engine room and the storage area for the fuel tank, battery, etc. In such cases, the hanging length of the heat shield must be shortened in order to prevent hindrance to the opening and closing of the bonnet top plate and to eliminate noise caused by vibration at the lower end of the heat shield. First, heat insulation of the engine room was incomplete, and the fuel tank and battery could not be sufficiently protected from heat generated by the engine.

In view of the drawbacks of the above, the present invention has been developed by closing the bonnet top plate to completely shield the engine compartment from other adjoining compartments, thereby reliably preventing the heat generated by the engine from spreading to other areas. The present invention aims to provide a heat shielding device for the engine room of a tractor, which can be used to improve the strength of the engine compartment of a tractor, and which can also be expected to have a reinforcing effect on the bonnet.

To explain the structure of the present invention with reference to an embodiment shown in the drawings, 1 is a bonnet of a tractor, 2 is a top plate of the bonnet, and this bonnet top plate 2 is connected to a fulcrum 3 at a front end.
It can be opened and closed up and down with the center at the center.

An engine room 4 is formed in the front part of the posinet 1, and an engine 5 is housed in the engine room 4.

Further, at the rear of the engine room 4, a clutch housing 6 is disposed in the lower part thereof, and the clutch housing 6 is fixed to the engine 5 by bolts 7 so as to be integral with the engine 5.

8 is a flange of the clutch housing 6, and the upper end surface of the flange 8 is projected upward.

Reference numeral 9 represents a fuel tank, and reference numeral 10 represents a battery, which are installed on a pedestal 11 that is constructed above the clutch housing 6 via a flange 8.

12 is a steering handle; 13 is a panel thereof; the opening/closing end of the bonnet top plate 2 faces above the panel 13;

Reference numeral 14 denotes a cushioning material attached to the opening/closing end of the bonnet top plate 2.

15 is a heat shield plate, and this heat shield plate 15 is attached to the flange 8 of the clutch housing 6 on the back side of the bonnet top plate 2.
The top edge and three sides of the left and right side edges are fixed to the back surface of the bonnet top plate 2 and hang down at a position corresponding to the top end surface,
A cushioning material 16 made of an elastic material is attached to the lower end surface.

The hanging length of the heat shield plate 15 is approximately the same as the side length of the bonnet top plate 2, and when the bonnet top plate 2 is closed, the lower end surface of the heat shield plate 15 is attached to the upper end surface of the flange 8 of the clutch housing 6. are butted against each other via the buffer material 16, so that the engine room 4 is completely shut off.

In the configuration as described above, when the bonnet top plate 2 is closed, the heat shield plate 15 fixedly suspended from the back surface of the bonnet top plate 2 is attached to the cushioning material 16 on the upper end surface of the flange 8 of the clutch housing 6.
Since the abutting portions are abutted together through the abutting portion, the abutting portion becomes completely sealed, and the engine room 4 within the bonnet 1 is completely partitioned off from the fuel tank 9 and battery 10 housing portion behind the bonnet 1.

Therefore, the rear fuel tank 9 from the engine room 4
Also, no hot air is blown into the housing portion of the battery 10, and they are completely protected from the heat generated by the engine 5.

In addition, the heat shield plate 15 fixedly suspended from the back surface of the bonnet top plate 2 serves as a reinforcing material for the bonnet top plate 2 and is also reinforced by the bonnet, so even if it is constructed from a thin plate, problems due to vibration etc. will not occur. do not have.

In particular, when the bonnet top plate 2 is closed, the heat shield plate 15 comes into contact with the flange 8 and supports the ginnet top plate 2, so the reinforcing effect during tractor operation is further increased, and the bonnet top plate 2 is protected. We can also fully expect a vibrational effect.

In addition, since the heat shield plate 15 is fixed to the bonnet, when the bonnet is opened, it moves out of the engine room unlike the bonnet. Unlike conventional installations, engine maintenance and inspection are not obstructed, and no special members or effort are required for installation.

In short, the present invention provides a tractor in which an engine room is formed in the front part of the hood to accommodate the engine, and a clutch housing is arranged in the rear lower part of the hood. The heat shield plate that meets the upper end of the flange of the housing is fixedly suspended, so when the bonnet top plate is closed, the engine room is completely shielded from other adjacent compartments, preventing the heat generated by the engine from spreading to other areas. It is possible to reliably prevent this from occurring, and at the same time, a sufficient reinforcing effect of the bonnet can be expected.

[Brief explanation of drawings]

The drawings show an embodiment of the heat shielding device for the engine room of a tractor according to the present invention, in which FIG. 1 is an overall side view of the tractor, FIG. The figure is a front view of the same as above. In the figure, 1 is the bonnet, 2 is the bonnet top plate, 4 is the engine compartment, 5 is the engine, 6 is the clutch housing,
8 is the flange, 9 is the fuel tank, 10 is the battery,
11 is a pedestal for them, 15 is a heat shield plate, and 16 is a buffer material.

Claims (1)

[Scope of Claim for Utility Model Registration] In a tractor in which an engine room is formed in the front part of the bonnet to accommodate the engine, and a clutch housing is disposed in the rear lower part thereof, the upper end surface of the flange of the clutch housing is raised upward. A heat shielding device for an engine room, characterized in that a heat shield plate is fixedly suspended from the back surface of the bonnet top plate and abuts against the upper end surface of the flange of the clutch housing.゛