JPH0216901Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure for mounting a driver's seat in a work vehicle such as an agricultural tractor that works in a field.

[Problems to be solved by the prior art and the invention] Conventionally, the driver's seat of this type of work vehicle has been installed at a standard height that is suitable for normal driving such as driving on roads or in fields. Therefore, when working under shelves in an orchard, for example, if the worker does the work at the standard height, the worker must always be careful not to hit the branches or shelves with his or her head. Therefore, it is extremely troublesome and forces the user to maintain an unreasonable working posture, resulting in a significant decrease in work efficiency and disadvantages such as easy fatigue. Therefore, for such work, it is proposed to separately prepare a special purpose-built vehicle with a low body type, or to replace the running wheels with smaller diameter ones. It is not preferable from this point of view, and it is extremely difficult and complicated to frequently change the wheels according to the work, and it is virtually impossible to change them at the work site, so in any case, it is not preferable. Nakatsuta.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention has been devised for the purpose of providing a mounting structure for a driver's seat in a work vehicle that can eliminate these drawbacks. A support body formed by a horizontal plate and parallel front and rear plates extending downward and upward from the front and rear edges of the horizontal plate, respectively, is provided in the driver's seat area of the aircraft frame, and the driver's seat is fixed thereto. The seat bracket is formed by a horizontal side and front and rear sides that face each other in a substantially parallel state to the horizontal plate and the front and back plates, and among these sides, the front side is attached to the front plate, and the rear side is attached to the rear plate. In each case, the seat bracket is configured such that a substantially parallelogram-shaped space is formed between the seat bracket and the support, and the seat bracket is fixed to the support so as to be vertically displaceable in parallel. This is a characteristic feature.

With this configuration, the present invention has an extremely simple configuration, but even in temporary work sites, the height of the standard driver's seat can be freely set according to the work conditions, and it can be placed under the shelf. This allows special tasks such as work to be performed without forcing the worker into an unreasonable working posture.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a traveling body of an agricultural tractor, and an upper part of the body frame 2 of the traveling body 1 is located below the driver's seat area.
A hydraulic case 3 is provided so as to protrude above the upper step surface 2a. Reference numeral 4 denotes a case cover provided to cover the hydraulic case 3, and the case cover 4 includes a horizontal plate 4a that closely opposes the upper surface of the hydraulic case 3, and downwards from the front and rear edges of the horizontal plate 4a, respectively. It is composed of a front plate 4b and a rear plate 4c extending upward,
These front and rear plates 4b, 4c have sloped surfaces that are parallel to each other and slope forward toward the bottom, and are also used as the support of the present invention. On the other hand, 5 is a seat bracket, and the seat bracket 5 is attached to the horizontal and front and rear plates 4a, 4 of the case cover 4.
b, 4c, and a horizontal side 5a, a front side 5b, and a rear side 5c, which face each other in a substantially parallel state. The front side of the driver's seat 6 is the front side 5.
The seat bracket 5 is pivotably supported by a supporting portion 5d protruding from the seat bracket 5, and its rear portion is supported by a horizontal side 5a via a receiver 7, so that it can be attached to the seat bracket 5.

On the other hand, the seat bracket 5 is fitted with the bolts 8,
Although it is designed to be tightly fixed by 9,
With the seat bracket 5 applied to the case cover 4, the upper and lower horizontal plates 4a and horizontal sides 5a, as well as the front and rear front sides 5b and rear plate 4c,
A space A having a parallelogram shape when viewed from the side is formed, and can be vertically and parallelly displaced relative to the case cover 4. As shown in FIG.
By fixing the rear side 5c with bolts using the lower bolt holes 8a drilled in the rear plate 4c of the case cover 4 and the upper bolt holes 9a drilled in the rear plate 4c of the case cover 4, The seat 6 is set to be located at a high working height for normal work, but as shown in FIG.
using the upper bolt hole 8b, and the rear side 5c.
If the bolts are fixed using the bolt holes 9b on the lower side of the rear panel 4c, the seat bracket 5
is set so that the driver's seat 6 can be positioned at a low seat height that allows special work such as work under a shelf.

In addition, in the figure, 10 is a tool box, and the tool box 1
0 is adapted to fit into an opening 5e formed in the horizontal side 5a of the seat bracket 5 and to be stored in the space A below the driver's seat 6 when the seat bracket 5 is in the high working position. .

In the embodiment of the present invention constructed as described above, when performing normal field work, the seat bracket 5 is bolted to the above-mentioned high working height of the normal specifications. ,If you are currently working under a shelf in an orchard,
By displacing the seat bracket 5 downward parallel to the case cover 4 and fixing it with bolts at a low working height that is a special specification, the driver's seat 6
This provides a low working position suitable for the height below the trellis in orchards. As a result, the worker can avoid being injured by hitting his or her head against the shelf without having to adopt an unreasonable working posture.

In this way, in this invention, one traveling aircraft can be
It is possible to freely change the setting between a high seat height for normal work and a low seat height for special work, but this change is simply a matter of changing the seat bracket 5.
This can be done by an extremely simple operation of just vertically displacing the case cover 4, so it can be done extremely quickly and easily even at a work site such as a temporary farm with a general-purpose tool such as a spanner. Unfortunately, the structure for raising and lowering the seat bracket 5 is extremely simplified.
This not only simplifies the structure but also significantly contributes to reducing the weight of the aircraft. Moreover, since the seat bracket 5 and the case cover 4 form a substantially parallelogram-shaped space A, the seat bracket 5 will not tilt at all even if the seat height is adjusted. In addition, the space A can be used as effectively as possible to set a large height adjustment range.

Further, in this embodiment, the tool box 10 can be conveniently stored in the space between the case cover 4 and the seat bracket 5.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, but the vertical height adjustment of the seat bracket may be set not only to two stages but also to three stages, four stages, etc. as appropriate. In addition, the seat height may be set higher than the seat height of the normal specification, and the support body does not necessarily have to be a case cover.

[Operations and Effects] In summary, since the present invention is constructed as described above, the seat bracket can be moved up and down with respect to the support body to adjust the seat height to any desired height. Therefore, when working under shelves in an orchard, workers do not have to work in an unreasonable working posture, and not only can they demonstrate excellent work efficiency, but they can also significantly reduce fatigue. Can be done. Furthermore, the seat height can be adjusted up and down by simply displacing the seat bracket parallel to the support body, so the structure is simple and does not become complicated at all, and it also helps to reduce the weight of the aircraft. Moreover, it can be adjusted extremely easily even at a temporary work site, and furthermore, it can be adjusted to a large height by making the most effective use of the space between the seat bracket and the support. This is the result.

[Brief explanation of the drawing]

The drawings show an embodiment of the mounting structure of the driver's seat in the work vehicle according to the present invention, and FIG. 1 is a side view of the vehicle when the seat is adjusted to a high position, and FIG. The figure is a perspective view of the main parts of the same as above, FIG. 3 is a side view of the main parts showing a case where the seat position is adjusted to a low position, and FIG. 4 is a perspective view of the main parts of the same. In the figure, 2... Airframe frame, 4... Case cover, 4a... Horizontal plate, 4b... Front plate, 4c...
Rear panel, 5...Seat bracket, 5a...Horizontal side, 5b...Front side, 5c...Rear side, 6...Driver's seat, A...Space.

Claims (1)

[Scope of utility model registration request] A seat to which the driver's seat is fixed, in which a support body formed by a horizontal plate and parallel front and rear plates extending downward and upward from the front and rear edges of the horizontal plate, respectively, is provided in the driver's seat area of the aircraft frame. The bracket is formed of a horizontal side and front and rear sides that face each other in a substantially parallel state to the horizontal plate and the front and back plates, and of these sides, the front side is attached to the front plate and the rear side is attached to the rear plate. The seat bracket is configured such that a substantially parallelogram-shaped space is formed between the seat bracket and the support body, and the seat bracket is fixed to the support body so as to be vertically displaceable in parallel to the support body. Mounting structure of the driver's seat in a working traveling aircraft.