JPH0221305Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field In this invention, a seat is fixed to the vehicle body frame so as to be movable back and forth, and an operating lever is arranged on the side of the seat. The present invention relates to a seat device for a passenger tractor.

(2) Prior Art Conventionally, such riding tractors generally do not have armrests so as not to interfere with operating the operating levers on the sides.

(3) Problems that the invention aims to solve However, when working for a long time, it is easier to have armrests that are warm, and especially when working while checking the rear, the armrests do not sit above the worker. It can support your body, making work easier. Furthermore, when working on a slope, it is desirable to have armrests to secure the worker on the seat. Moreover, even if the seat can be moved back and forth to accommodate the operator, it is necessary to ensure that the armrest does not interfere with the operation of the operating lever.

The present invention has been made in view of the above circumstances, and provides a seat device for a passenger tractor that is provided with an armrest portion that does not rest on the seat position and does not interfere with the operation of the operating lever. The purpose is to

B. Structure of the invention (1) Means for solving the problem According to the invention, a seatback pipe is provided on the lower side of the seat and is bent upward at the rear of the seat in the front-rear direction with respect to the seat. An armrest portion extending forward on the side of the seat is fixed to the seatback pipe with its front end located behind the operating lever.

(2) Function The armrest can be positioned behind the control lever without being hugged by the seat, and the armrest can be used without interfering with the operation of the control lever.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, in FIGS. 1 and 2, a pair of front wheels Wf are suspended on the front part of a body frame 1 of a passenger tractor T. A pair of rear wheels Wr are suspended at the rear. Furthermore, front and rear hitches 2 and 3 are provided at the front and rear of the vehicle body frame 1, respectively, for connecting a working machine such as a rotary working machine.

A seat 4 is movably fixed to a portion of the vehicle body frame 1 near the rear wheel Wr, and is movable back and forth, and on both sides of the seat 4 are operating levers for performing operations necessary for work with the passenger tractor T. 5,
6, 7, and 8 are arranged.

In FIGS. 3 and 4, the seat 4
consists of a seat portion 9 and a pair of cushion portions 10 interposed between the vehicle body frame 1 and the seat portion 9. The cushion part 10 includes an upper plate 11 fixed to the lower surface of the seat part 9, a lower plate 13 connected to the front end of the upper plate 11 by a horizontal pin 12, and an upper plate 11.
and a coil spring 14 interposed between a lower plate 13, and the lower plate 13 is fixed to the vehicle body frame 1.

A pair of bolts 15 are inserted into the lower plate 13 from above to below at positions spaced apart in the front-rear direction.
A pair of elongated holes 16 extending in the front-rear direction are bored in the. Nuts 17 are screwed into bolts 15 that protrude downward from elongated holes 16, respectively. Therefore, the seat 4 is fixed to the vehicle body frame 1 so as to be movable in the longitudinal direction of the passenger tractor T within the range defined by the elongated hole 16.

Seat back pipes 18 are fixed to both lower sides of the seat 4 so as to be movable relative to the seat 4 in the longitudinal direction. The seatback pipe 18 has a shape that extends rearward from both lower sides of the seat 4 and is further bent upward at the rear of the seat 4 to be connected in an inverted U-shape. Long holes 19 extending in the longitudinal direction of the tractor T are provided, respectively. On the other hand, mounting plates 20 are fixed to the outer sides of both lower plates 13 of the cushion portion 10 of the seat 4, and a pair of mounting plates 20 are inserted into the mounting plates 20 from inside at positions spaced apart in the front-rear direction. The bolts 21 are inserted into the elongated holes 19, and nuts 22 are screwed onto the bolts 21, respectively. Thereby, the seatback pipe 18 is fixed to the seat 4 while being able to move relative to the front and rear within the range defined by the elongated hole 19.

A pair of armrest portions 23 are fixed to a vertically intermediate portion of the seat back pipe 18, which extend from the rear of the seat 4 to the side and bend toward the front. These armrest portions 23 are formed by bending pipes, and grips 24 made of soft synthetic resin are attached to the upper curved portions on the sides of the seat 4. Furthermore, the outer surface of the grip 24 is provided with a plurality of grooves to prevent slipping.

Further, the length of the armrest portion 23 is set such that the front end thereof is located behind each of the operating levers 5, 6, 7, and 8.

Next, the operation of this embodiment will be described. The seat 4 is movable back and forth with respect to the vehicle body frame 1, and is fixed to the vehicle body frame 1 by appropriately selecting the position according to the operator. At this time, the seatback pipe 18 is also moved back and forth with respect to the seat 4, so that the front end of the armrest portion 23 is positioned behind each of the operating levers 5-8.

In this way, the operator on the seat 4 can operate each of the operation levers 5 to 8 without being obstructed by the armrest portion 23.

Moreover, since the armrest part 23 is provided, the worker can work by resting his/her elbow on the armrest part 23, which makes working especially for a long time easier. Further, when working while backing up the riding tractor T and checking the rear, the armrest portion 23 can support the worker's upper body. Furthermore, when working on a slope, the worker can be secured on the seat 4 by supporting the worker's waist and flanks with the armrests 23, or by having the worker hold the armrests 23 with their hands. Can be done. Further, when the worker gets on the riding tractor T, the armrest portion 23 can also be used as a handle.

C. Effect of the invention As described above, according to the invention, the seatback pipe bent upward at the rear of the seat is fixed to the lower side of the seat so that it can move relative to the seat in the front-rear direction. An armrest extending forward on the side of the seat is fixed to the seat back pipe with its front end positioned behind the operating lever, so that the armrest can be used without being held in the position of the seat. It can be arranged so as not to interfere with the operation of the operating lever, and the armrest can be used to secure the operator on the seat and to make the working posture more comfortable.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of a riding tractor, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. FIG. 4 is an enlarged exploded perspective view of essential parts showing the fixing structure of the seat and the seat back pipe. 1...Vehicle body frame, 4...Seat sheet, 5~
8... Operating lever, 18... Seat back pipe, 23... Armrest, T... Riding tractor.

Claims (1)

[Scope of utility model registration request] In a seat device for a passenger tractor, in which a seat is fixed to a vehicle body frame so as to be movable back and forth, and an operating lever is disposed on the side of the seat,
A seatback pipe bent upward at the rear of the seat is fixed to the lower side of the seat so as to be movable relative to the seat in the front-rear direction. 1. A seat device for a riding tractor, characterized in that an armrest portion extending forward is fixed with its front end positioned behind an operating lever.