JP2559658Y2 - Power plant structure of mobile agricultural machine - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention covers a horizontally mounted engine and a radiator arranged on the laterally outer side of the engine by a box-shaped bonnet having a seat mounted on the upper surface of the engine facing forward, and a dustproof intake port provided on the front of the bonnet. And a driving mechanism structure of a mobile agricultural machine such as a combine having a hook-shaped cooling air introduction passage which connects the dustproof air intake port and the cooling air intake port of the radiator inside the hood.

[0002]

2. Description of the Related Art A horizontally mounted engine and a radiator arranged laterally outside thereof are covered with a box-shaped bonnet having a seat mounted on the upper surface thereof, and a dustproof intake port is formed on the front of the bonnet. Japanese Patent Laid-Open Publication No. Sho 60-174526 discloses a driving part structure of a combine having a hook-shaped cooling air introduction passage which connects the dustproof intake port and the cooling air intake port of the radiator inside a hood. The described technique is known. As shown in FIG. 6, the driving part structure of the mobile agricultural machine has a duct 9 for forming a cooling air introduction passage 8 for conducting a dustproof intake port 6a formed on the front surface of the bonnet B to a radiator cooling air intake.
Was provided at an interval from the upper surface wall Ba of the hood B.

[0003]

The corner of the upper portion of the hood at the front of the seat is heated by hot air accumulated between the upper surface of the duct for forming the cooling air introduction passage and the upper wall portion of the bonnet at the front of the seat. Met. The corner of the upper part of the hood is a place where the back side of the thigh comes into contact when the driver sits deeply in the seat, especially in summer, since this place becomes hot, it is difficult to sit deeply in the seat. was there. Therefore, as means for solving the above-mentioned disadvantage, FIG.
As shown in FIG. 7, it is conceivable to provide a protective cover C on the outer side of the upper corner of the bonnet B to guide a part of the cool air in the introduction passage 8 to prevent the back side of the thigh from being burned. However, in such a case, there is an inconvenience that the cost increases due to the production and assembly of the protective cover. An object of the present invention is to prevent the corner of the upper part of the bonnet touching the back side of the thigh from being unduly heated without incurring an increase in cost.

[0004]

In order to achieve the above object, the present invention is characterized in that the vertical wall of the cooling air introduction passage forming duct extends to the upper surface wall of the bonnet, and the front portion of the seat is provided at the front of the seat. The hood upper wall portion is also provided with a dust-proof intake port communicating with the cooling air introduction passage.

[0005]

As shown in FIG. 1, the bonnet upper surface wall Ba at the front of the seat is caused by the intake action of the radiator cooling fan.
Since the outside air is also sucked from the dust-proof intake port 10 formed in the portion, the upper corner portion of the hood at the front of the seat where the back side of the thigh contacts is cooled.

[0006]

As a result of the above construction, the cost is increased due to the structure in which the vertical wall of the duct extends upward and the simple structure improvement in which the dustproof air inlet is formed in the upper wall portion of the bonnet at the front of the seat. In addition, the corner of the upper part of the hood can be prevented from being unduly heated, and the driver can sit and drive deeply in the seat.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a self-contained combine. As shown in FIG. 3, a box-shaped bonnet B is provided on the lateral side of the pre-processing device 2 provided with the raising device 1 and covers a driving portion of an engine E or the like having the seat 3 mounted forward on the upper surface. A threshing device 4 and a Glen tank 5 are arranged behind the pretreatment device 2 and the seat 3, respectively.
A self-contained combine is constructed. As shown in FIGS. 1 and 2, a horizontally mounted engine E and a radiator R are arranged and disposed in the bonnet B in a state where the radiator R is arranged on the laterally outer side thereof. The air intake ports 6a and 6b having a structure are formed, and a hook-shaped cooling air introduction passage 8 communicating with the cooling air intake port 7 of the radiator R is provided therein to constitute a cooling structure of the control unit.
Then, the vertical wall 9a of the duct 9 for forming the cooling air introduction passage is formed.
To the top wall Ba of the bonnet B, and
The bonnet upper wall portion of the seat front, to form a dust-proof air inlet 10 communicating with the cooling air introducing passage 8, the inspiration by the radiator cooling fan F _1, was formed on the bonnet upper wall portion of the seat front The outside air is also sucked from the dust-proof intake port 10 so that the upper corner of the hood at the front of the seat can be cooled. Further, said fan F ₂ to the tip of the output pulley 11 of the engine E is provided, the hot air in the hood B, reverse shift lever 13 and pretreatment device before blowing strongly in the vertical wall of the seat 3 next maneuver panel 12 The hot air is discharged to the outside from operation holes 13a and 14a of the lifting lever 14 and the like.

[Another Embodiment] The mesh of the dust-proof air inlet 10 and the mesh of the upper portion of the air inlet 6a on the front of the bonnet are made larger than the mesh of the lower portion thereof to reduce the air intake resistance, and the hood of the seat front is reduced. The upper corner may be configured so as to improve the cooling efficiency. In the above-described embodiment, the intake port 6b having the dust-proof net structure is also formed on the lateral outer side surface of the bonnet B, but the intake port 6b may be omitted.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a driving unit.

FIG. 2 is a cross-sectional plan view of a driving unit.

FIG. 3 is a side view of the combine.

FIG. 4 is a perspective view of a control unit.

FIG. 5 is a longitudinal sectional side view of a driving unit showing a comparative example.

FIG. 6 is a longitudinal sectional side view of a driving part showing a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Seat 6a Dust-proof intake port 8 Cooling air introduction passage 9 Duct for forming cooling air introduction passage 9a Vertical wall 10 Dust-proof intake port B Bonnet Ba Bonnet top wall E Engine R radiator

Claims (1)

(57) [Scope of request for utility model registration] 1. A horizontal engine (E) and a radiator (R) arranged laterally outside the engine (E) are covered with a box-type hood (B) having a seat (3) mounted on the upper surface thereof facing forward, and the bonnet is provided. A dustproof intake port (6a) is formed on the front surface of (B), and the dustproof intake port (6a) and the cooling air intake (7) of the radiator (R) are electrically connected inside the hood (B). And a vertical wall (9a) of the cooling air introduction passage forming duct (9) is provided on an upper wall of the bonnet (B). A driving unit structure of a mobile agricultural machine, which extends to (Ba) and has a dust-proof intake port (10) communicating with the cooling air introduction passage (8) also in the upper wall portion of the hood at the front of the seat.