JPH0635868Y2 - Tractor cockpit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a cockpit of a tractor, and can be used for a tractor.

2. Description of the Related Art Problems to be Solved by Conventional Techniques and Inventions In a tractor having a steering cabin, sealing the part formed by the rear edge of the bonnet in the upper front part of the cabin prevents hot air and noise from the engine compartment. This is an indispensable problem, and a front cover that seals the front surface is provided as a part of the steering cabin on the front side of the frame that constitutes the conventional cabin, or on the tractor body side when the cabin is removed, Although the sealing plate at the end was provided, the sealing degree of the outer periphery of the sealing plate was poor, and noise or backward hot air from the engine cooling fan sometimes entered the control cabin. Especially in the case of a form with a removable cabin frame, without using special members, etc.,
A structure that cuts off noise and hot air in the engine room has been desired.

Means for Solving the Problems This invention is directed to a partition (3) above a partition (3) between a front engine room (1) and a rear cockpit (2), and the partition (3).
Inside the engine compartment (1), a communication port (5) is formed between the upper edge and the rear edge of the bonnet (4) that covers the upper side of the engine compartment (1) and communicates with the cockpit (2). The fuel tank (6) to be fitted and hermetically sealed so that the engine compartment (1)
The operation and effect of the tractor cockpit, which cuts off the hot air and noise of the engine, and the effect of the invention. The engine is installed in the engine compartment (1), and the cooling air blown to the front of the engine is directed rearward. Absorbs the heat of the engine and becomes hot air, which blows against the partition wall (3) with the cockpit (2) and its upper part. Further, when the engine noise is reflected in the engine room (1) and there is a gap in the partition wall at the boundary between the engine room (1) and the cockpit (2), hot air and noise are generated. The fuel tank (6) is located at the communication port (5) above the partition wall, and the rear plate, for example, at the rear of the tank (6), communicates with the communication port (5). When it is formed in a shape matched with the shape of (1), it can be fitted and sealed in the communication port (5) to block noise and hot air without a gap.

There is a form in which the fuel tank (6) is conventionally located at the upper rear part of the engine room (1), and it may be provided at this position. It has a simple structure without using a special sealing plate, and has a cockpit (2 It is possible to prevent the entry of hot air into the), and reduce the entry of noise.

Embodiment In the illustrated example, the engine compartment (1) has a pair of left and right front wheels (7) that can be steered and a pair of left and right driven rear wheels (8) to run a tractor vehicle body (9). It is located above the front wheel (8) of the front upper part of the vehicle, is covered with the bonnet (4) on the upper side, and is laterally covered with the left and right covers (10). 11) Cooling water radiator (12), cooling fan (13), engine (11), fuel tank (6), etc. are installed.

The cockpit (2) is framed by a front frame (14), a rear frame (15), etc. and has a roof (16) and is surrounded by front and rear walls having glass windows, and left and right walls having doors (17). The front part of the room (2) has a control handle (2
0) and the pilot seat (2
Have 2). The left and right walls having the door (17) partition the chamber (2) on the upper surface of the fender (23) of the rear wheel (8), and the width of the chamber (2) is wider than that of the engine room (1). It is provided.

The partition wall (3) is located at the lower end of the step (24) extending to the front of the fender (23), and the front end of the control floor (21) higher than the front frame (14) of the cockpit (2). It is provided in the width of the engine room (1) between the lower end of the bonnet (4) and the vicinity of the lower end of the bonnet (4) and has an upper end surface (25). The rear end of the fuel tank (6) is supported on the upper end surface (25).

The bonnet (4) has an upper surface of the engine compartment (1) and a part of side surfaces, and the lower left and right edges (26) of the bonnet (4).
Is in close contact with the left and right covers (10). The rear edge (27) forms the upper part and the side part of the communication port (5).

The communication opening (5) is constituted by an upper end surface (25) of the partition wall (3) and a rear end edge (27) of the bonnet (4), and has a width in the front-rear direction of the front frame (14) ( It faces the back surface of the dashboard (19) via (b).

The fuel tank (6) has a generally rectangular cross section and is located at the rear upper part of the engine room (1) along the longitudinal direction in the front-rear direction (a). ) Is formed in a shape that is larger than the height and width of the tank (6) and that follows the inner peripheral shape of the communication port (5), and the flange shape protrudes outward from the cross-sectional shape of the tank (6). A sealing material (29) made of an elastic material such as rubber or resin is fitted around the periphery of the rear plate (28), and the outer peripheral portion of the sealing material (29) is connected to the communication port (5). It is inserted and sealed. Further, the fuel cylinder (3) having the cap (30) provided on the upper part of the tank (6)
1) is fitted into a hole (32) provided on the upper surface of the bonnet (4) and protrudes outward so that oil can be supplied.

Reference numeral (33) is a glass window, which is provided on the left and right bulging portions of the cockpit (2) protruding leftward and rightward from the width of the engine compartment (1) so that the front wheel (7) can be seen through from the cockpit (2). It is provided.

(34) is an exhaust stack of the engine (11).

The engine (11) emits noise during driving rotation, and the temperature rises after operating for a long time. The cooling fan (13) rotates and the outside air drawn from the front of the engine compartment (1) is drawn into the radiator (12).
To absorb the heat of the cooling water of the engine (11), and then blow it backward to the engine (11). This cooling air absorbs radiant heat from the engine (11) and the exhaust pipe, and blows the gap between the interior equipment and the bonnet (4) and the left and right covers (10) toward the cockpit (2). Engine (11)
The cooling air that blows upward passes through the periphery of the fuel tank (6) and descends along the partition wall (3) to the engine compartment (1).
It is discharged to the lower part of the vehicle body (9) through the gap between the devices at the bottom. A sealing material (29) provided on the outer periphery of the rear face plate (28) of the fuel tank (6) fitted in the communication port (5) seals the gap and shuts off the cooling air having an increased temperature from the cockpit (2). .

The communication port (5) is a wind direction changing part where wind pressure is applied even if the wind speed is low, but the rear face plate (28), the sealing material (29) and the partition wall (3) block hot air and noise. It is possible to prevent entry into the cockpit (2). Sealing material (29)
Even if the accuracy in fitting and assembling is roughened, the degree of sealing can be maintained. The fuel tank (6) has a rear plate (28).
The weight of the partition wall (3) due to the fitting of the plug into the communication port (5).
Since it is supported by the upper end surface (25), it can be mounted only by supporting and fixing only the front side by an arm or the like protruding from the partition wall (3), which has less vibration than the engine (11) and the like.

Incidentally, what is shown in FIGS. 4 to 7 is another embodiment,
The present invention relates to sealing of the door (17) in the case of a so-called detachable simple cabin type cockpit (2), which extends across the horizontal portion and the inclined portion of the upper surface of the fender (23) of the rear wheel (8). At a portion along the lower end surface of the door (17), etc., as shown in FIG. 4, screw a door seal body (35) made of resin or the like for abutting and closely contacting the door (17) from the inside with a proper interval. When stopping at (36), as shown in Fig. 5, the screwed part comes into close contact with the upper surface of the fender (23), and a floating gap (c) is created in the middle part between the screwed parts. There was a drawback that wind and rain would invade. Therefore, the door seal body (3
A groove (37) is provided on a part of the bottom surface of 5), and in this groove (37),
Auxiliary seal body made of soft elastic material such as foamed resin material (3
8) is fitted and is provided so as to project from the lower surface of the door seal body (35) in a natural state.
As shown in FIG. 6, the auxiliary seal body (38) is compressed at the screw (36) stop portion, the lower surface of the door seal body (35) is in close contact with the fender (23), and the gap (c) portion is at the seventh position. As shown in the figure, the auxiliary seal body (38) can be in close contact with the fender (23) for sealing. This auxiliary seal body (3
In 8), if it is a foam material, it is desirable that it is a closed cell body that does not absorb water, and it is not limited to foam material. With respect to the door seal body (35) with the auxiliary seal body (38) configured as described above, a so-called weather strip (having a hollow portion (39) made of an elastic body such as rubber along the lower edge of the door (17) ( 40) is provided so that it can be closely attached from the left and right to block ingress of wind, rain, dust, etc. into the cockpit (2).

Also, the door seal (35) can be easily attached as it is conventionally.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially enlarged side sectional view, FIG. 2 is a side view thereof, FIG. 3 is a front view of a part thereof, and FIG. FIG. 5 is a perspective view of another embodiment, FIG. 5 is a side view of a part thereof, and FIGS. 6 and 7 are front sectional views of a part thereof. In the figure, reference numeral (1) is the engine compartment, (2) is the cockpit,
(3) is a partition wall, (4) is a bonnet, (5) is a communication port,
(6) shows a fuel tank.

Claims (1)

[Scope of utility model registration request] 1. A partition (3) above a partition (3) between a front engine room (1) and a rear cockpit (2), and the partition (3).
Inside the engine compartment (1), a communication port (5) is formed between the upper edge and the rear edge of the bonnet (4) that covers the upper side of the engine compartment (1) and communicates with the cockpit (2). The fuel tank (6) to be fitted and hermetically sealed so that the engine compartment (1)
The cockpit of a tractor that cuts off hot air and noise.