JPH0219295Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a control valve remote control device for a reversing tractor.

The present invention relates to a reversible tractor in which the driver's seat is reversed and the direction of movement of the machine body is reversed in forward and reverse directions, in which a control valve can be easily and remotely operated at all times.

Prior Art Conventionally, such reversible tractors have been configured to switch between a normal traveling state and a reverse traveling state by reversing the steering wheel, pedals, and driver's seat back and forth. However, the operating lever that hydraulically operates the work equipment, which is suspended vertically from the rear or front end of the machine, remains fixed to the machine frame, so if you operate it with your right hand during normal driving, it will not work properly. When the vehicle is moving in a direction, it must be operated with the left hand, which is inconvenient.

Problems to be Solved by the Invention The present invention attempts to solve the inconvenience of the conventional structure, and attempts to always operate the hydraulic operating lever with the same hand.

Means for solving the problem To this end, the present invention has taken the following technical measures. That is, a swing operating lever 2 that swings forward and backward is installed on the left or right side of the seat 1 for the driver, and the swing directions of these swing operating levers 2 are opposite to when they are mounted on the other side. A control valve remote control device for a reversing type tractor is constructed in such a manner that the control valve remote control device for a reversing tractor is interlocked and connected to the hydraulic control valve 3 in such a manner.

Effects of the invention This invention has the following unique effects due to the above-mentioned configuration. That is, the swing operation lever 2 is moved to the seat 1.
Hydraulic control valve 3 when installed on the right side of
The control position and the control position of the hydraulic control valve 3 when the swing operation lever 2 is installed on the left side of the seat 1 are completely opposite positions, so even when the seat 1 is reversed and traveling in the opposite direction, it can be operated with the same hand. It is now possible to control the hydraulic control valve 3 by simply operating it in the same direction.

Example The embodiment of the present invention described above will be described.

The illustrated example shows this invention incorporated into an agricultural tractor 4, and FIG.
6 is a foot pedal, 1 is a seat for the driver, 2
3 is a swing operating lever, which operates a hydraulic control valve 3 provided in a hydraulic cylinder case 7, which is the body of the machine, as shown in FIG.
8 is an operating axis.

A right lever 2a of the swing operating levers 2 is attached to this operating shaft 8, and one end is attached to the interlocking arm 9 of the right lever 2a to the left lever 2b, which is the swing operating lever 2 on the other side. The other end of the attached push/pull wire 10 is attached and both levers 2
The operating shaft 8 can be operated by a and 2b. The left lever 2b is attached to the inner surface of the fender 12.

Next, the effect of the illustrated example will be described.

When the right lever 2a is operated in the direction of arrow A, the left lever 2b moves in the opposite direction, centering on the shaft 11, in the direction of arrow B. In the illustrated example, the operation shaft 8 is operated in conjunction with both levers, but the operation lever 2 is used as one, and the seat 1
It may be attached and detached to the right or left side.

[Brief explanation of drawings]

The figures show one embodiment of this invention, in which Fig. 1 is an overall plan view, Fig. 2 is a side view of the main part, and Fig. 3 is a rear view of the main part. In the figure, numeral 1 is the seat, 2 is the swing operation lever, and 3
indicates a hydraulic control valve.

Claims (1)

[Scope of utility model registration request] A swing operating lever 2 is installed on the left or right side of a seat 1 for seating a driver, which swings forward and backward, respectively, so that the swing directions of these swing operating levers 2 are opposite to when they are attached to the other side. A control valve remote control device for a reversing tractor, characterized in that the control valve remote control device is interlocked and connected to a hydraulic control valve 3.