JPH06191295A - Paddy field work vehicle - Google Patents

Abstract

PURPOSE:To prevent exhaust air from a muffler from deteriorating an already planted seedling or maneuvering environment in a paddy field work vehicle having the muffler under a riding step arranged in a sideward part of an engine bonnet in a front part of a machine body. CONSTITUTION:The tail end of an exhaust air tail pipe 6a of a muffler 6 is positioned rearward of a hole 8a of an operation pedal 8 of a maneuvering part 3 as well as in a wheel shaft upper place of front wheels 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paddy field working vehicle such as a passenger type rice transplanter.

[0002]

2. Description of the Related Art The conventional riding type rice transplanter is the actual Kaihei 2-14.
As shown in Japanese Patent No. 4822, a riding step for getting on and off a ridge or the like to and from a control section is provided on a lateral side portion of a hood at a front portion of a fuselage, and a muffler is arranged below the riding step. .

[0003]

The exhaust of the muffler is prevented from leaking upward from the hole of the operation pedal of the control section, that is, the exhaust of the control section of the control section due to the exhaust being discharged upward from the hole of the control pedal of the control section. The end of the exhaust tailpipe of the muffler extends to the rear of the operation pedal of the control section and near the driver's seat behind the front wheels so as not to deteriorate the driving environment. There is a problem that the exhaust of the engine is deteriorated due to the resistance of the pipeline and the output of the engine is lowered, and there is also a problem that the mud splashed up by the front wheels easily adheres to the exhaust tail pipe. Therefore, as a means for solving the above-mentioned drawback, if the exhaust tail pipe of the muffler is extended laterally outward of the machine body, and the end of the exhaust tail pipe is directed downward so that the engine exhaust does not hit other workers. , The inconvenience occurs that the exhaust falls on the adjacent seedlings. The present invention aims to overcome the above-mentioned drawbacks by a simple structural improvement.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is characterized in that the end of the exhaust tail pipe of the muffler is located behind the hole of the operation pedal of the steering section and at a position above the axle of the front wheel. It is located at the point.

[0005]

Since the end of the exhaust tail pipe of the muffler is located rearward of the hole of the operation pedal of the control section, the exhaust gas from the muffler does not escape above the hole of the operation pedal as the machine body travels. Since the tail end of the exhaust tail pipe is located above the axle of the front wheel, the length of the exhaust tail pipe becomes short, the duct resistance becomes small, and the exhaust gas escapes well. Further, the mud repelled by the front wheels is hard to reach above the front wheel axle portion, and the adhesion of the mud to the exhaust tail pipe of the muffler can be suppressed. Further, since the exhaust gas of the engine is discharged toward the rear of the machine body, the exhaust gas does not fall on the adjacent seedlings.

[0006]

As a result of the above structure, the exhaust of the muffler can improve the engine output without deteriorating the environment of the control section, and can further suppress the adhesion of mud to the exhaust tail pipe of the muffler. Moreover, the adjacent seedlings are not exhausted, and the seedlings are not damaged.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings of a riding type rice transplanter which is an example of a paddy field vehicle. 3 and 4 show a riding type rice transplanter. The riding type rice transplanter is provided with an engine bonnet 2 for accommodating an engine 1 in the front part of the machine body, and a control part 3 at the rear part of the bonnet 2. The bonnet 2 is provided with riding steps 4 and 4 on both sides of the bonnet 2 for getting on and off the ridge 3 or the like.

As shown in FIG. 2, the engine 1 is a horizontal axis forced air cooling type, and an intake 2a for the engine cooling air is provided on the right side of the bonnet 2. After cooling the upper cylinder head, the left side It is designed to be discharged to the discharge port 2b side. Also, a grill 2c provided at the cooling air outlet 2b
Is formed to have a curved cross-sectional shape that guides the engine cooling air downward, and is configured to suppress the engine cooling air from hitting the operator walking on the riding step 4.

On the left side of the engine 1, an exhaust pipe 5, a muffler 6 following the exhaust pipe 5, and a belt continuously variable transmission 7 for transmitting the output of the engine 1 to a traveling mission M.
The engine bonnet 2 is provided so as to cover the engine 1 and the belt continuously variable transmission 7.

The muffler 6 is arranged below the riding step 4 on the left side, and an end of the exhaust tail pipe 6a of the muffler 6 is provided in the riding step 4 so that engine exhaust does not reach the operator. Front wheel see-through openings 4a, 4a and hole 8 of clutch operating pedal 8
It is located rearward of a and above the axle 9a of the front wheel 9 as shown in FIG. Further, the exhaust tail pipe 6a of the muffler 6 is bent toward the inside of the aircraft while avoiding the front wheel 9 in a plan view, and is bent so as to follow the outer periphery of the front wheel 9 in a side view. The end is directed slightly diagonally downward.

[Other Embodiments] The paddy work vehicle may be a riding type direct seeder.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a front portion of a vehicle body.

FIG. 2 is a vertical sectional front view of a front portion of a vehicle body.

FIG. 3 is a plan view of the front part of the vehicle body.

[Figure 4] Side view of the entire riding type rice transplanter

[Explanation of symbols]

 2 Engine bonnet 4 Riding step 6 Muffler 6a Exhaust tail pipe 8 Operation pedal 8a Operation pedal hole 9 Front wheel 9a Front wheel axle

Claims (1)

[Claims] 1. A paddy field vehicle in which a muffler (6) is disposed below a riding step (4) provided on a lateral side of an engine hood (2) at the front of the machine body,
The end of the exhaust tail pipe (6a) of the muffler (6) is located behind the hole (8a) of the operation pedal (8) of the control unit (3) and above the axle (9a) of the front wheel (9). Paddy work vehicle located at.