JPH055857Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a grain tank for a combine harvester.

Conventional technology Conventional combine harvesters were equipped with a driver's seat for the operator to operate the vehicle, but due to cost and space considerations, the backrest of the combine harvester only reached around the driver's waist. lacks stability,
The drawback was that the seats were not comfortable and the driver was easily fatigued.

On the other hand, Japanese Utility Model Application Publication No. 56-8121 discloses a backrest member attached to the front wall of a paddy tank located behind the seat; Not only is it expensive because it has a backrest, but the paddy tank has to be positioned farther away from the seat by the thickness of the backrest, which limits the capacity of the paddy tank. There are drawbacks. Moreover, the front wall of the paddy tank is a vertical surface,
The backrest member attached to the front wall surface is also oriented vertically, and when the driver is seated, he or she is forced to sit in a cramped position, resulting in fatigue.

Problems to be Solved by the Invention The problem to be solved by the invention is to incline a part of the front wall surface of the grain tank attached to the combine to match the angle of the seat backrest, and directly attach it to a part of the backrest. The purpose is to improve the above-mentioned drawbacks of the conventional technology by using the same function as the conventional method.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a combine harvester in which a driver's seat having a rearward tilting backrest is disposed in front of a grain tank provided in the machine body. The front wall surface of the grain tank is located close to the driver's seat, and at least the portion of this front wall surface located above the backrest of the driver's seat is
It is characterized in that it is inclined rearward so as to substantially follow the upwardly extending surface of the backrest of the driver's seat, and the front wall surface of the grain tank is also used as a part of the backrest.

Function Since the front wall surface of the grain tank is configured to roughly follow the upwardly extending surface of the backrest of the driver's seat,
When the driver leans against the backrest of the driver's seat, the driver's back is supported by the front wall surface of the grain tank.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 3. Reference numeral 10 is a combine harvester, and a grain tank 1 is attached to the rear upper part of the machine body, and a grain tank 1 is attached to the upper part of the rear part of the combine harvester. A driver's seat 2 is provided with a backrest 2'. Reference numeral 3 denotes an operation unit provided in front of the driver's seat 2.

The front wall surface of the grain tank 1 is located close to the driver's seat 2 and is bent in a dogleg shape, and the upwardly inclined surface 1' of the front wall surface is inclined rearward at an inclination angle θ. The backrest 2' is inclined rearward approximately along the upwardly extending surface of the backrest 2'. Further, the lower inclined surface 1'' is inclined in the opposite direction to the upper inclined surface 1' so as to face rearward than the vertical direction.

Therefore, when the operator sits on the driver's seat 2 and operates the combine harvester 10, the upper inclined surface 1' of the front wall surface of the grain tank 1 also serves as a backrest, so that the height of the backrest is increased. This improves the driver's holding performance, making the driver more comfortable to sit on, reducing driver fatigue even when working for long periods of time, and stabilizing the driver's posture even when the combine harvester suddenly starts, increasing safety. It also improves. Moreover, since the upwardly inclined surface 1' of the front wall of the grain tank 1 is also used as a backrest,
There is no need to provide another backrest above the driver's seat 2, and the front wall surface of the grain tank 1 can be moved closer to the driver's seat 2 to extend the grain tank 1 forward.

Note that if the downwardly inclined surface 1'' of the front wall surface of the grain tank 1 is inclined in the opposite direction to the upwardly inclined surface 1' as in the embodiment, the grain tank 1 can be disposed close to the driver's seat 2. However, a space 4 is formed between the downwardly inclined surface 1'' and the rear surface of the driver's seat 2, so the presence of this space 4 may cause the driver's elbows to protrude rearward from the seat surface during work. However, the movement of the elbow is not hindered.

Effects of the invention The invention of the present application has the following effects due to the above-mentioned configuration.

(a) The front wall of the grain tank is placed close to the driver's seat, and the front wall is also used as the backrest for the driver's seat, so the backrest member of a different structure is attached to the grain tank. The capacity of the grain tank is not limited by this, and the capacity of the grain tank can be increased accordingly.

(a) Since there is no need for a special separate backrest member as in the past, the structure is simple and inexpensive.

(C) At least the part of the front wall of the grain tank located above the backrest of the driver's seat is tilted rearward so as to roughly follow the upwardly extending surface of the backrest, so that the backrest of the driver's seat and the grain A tall backrest with a series of inclination angles can be easily constructed by combining the upper slope of the front wall of the grain tank, improving the overall holding performance of the driver's seat and making it comfortable even when working for long periods of time. The degree of driver fatigue is low,
In addition, the driver's seating posture is stabilized and safety is improved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view thereof, FIG. 2 is a plan view showing the essential parts, and FIG. 3 is a partial view illustrating its operation. 1...Grain tank, 1'...Upward slope, 2...
...Driver's seat, 2'...backrest.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a driver's seat with a backrest tilting backward is arranged in front of a grain tank provided in the machine body, the front wall of the grain tank is located close to the driver's seat, and the front wall of the grain tank is located close to the driver's seat. At least a portion located above the backrest of the driver's seat is inclined rearward so as to substantially follow the upwardly extending surface of the backrest of the driver's seat, and the front wall surface of the grain tank is configured to double as a part of the backrest. A combine harvester having a grain tank that also serves as a backrest.