JPH0725292A - Tractor switch box - Google Patents

Abstract

PURPOSE:To narrow an interspace between a fender and a rear by attaching a switch box to the top face of a rear wheel fender of a tractor upon being floated by a bracket, and reducing a projection of this switch box into an underside of the fender of a harness. CONSTITUTION:This switch box is made up of the constitution that a lever guide 3 guiding an operating lever 2 is set up inwards on top of a fender 1, and a switch box 5 provided with an operating switch is attached to the outside of this lever guide 3 via a bracket 6, while a harness 7 of this switch box 5 is passed through an interval between the lever guide 3 and the fender 1 and drawn into the side of a seat floor 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch box provided on a fender of a tractor.

[0002]

2. Description of the Related Art In many cases, a gap between a rear wheel and a fender covering the rear wheel is narrow,
It is difficult to make part of the switch box, harness, etc. protrude far below the fender.

[0003]

According to the present invention, a lever guide 3 for guiding an operating lever 2 is provided on the inside of a fender 1.
And the operation switch 4 on the outside of the lever guide 3.
A switch box 5 having a switch is attached via a bracket 6, and a harness 7 of the switch box 5 is passed between the lever guide 3 and the fender 1 to provide a seat floor 8
The switch box of the tractor is characterized by being pulled to the side.

[0004]

[Operation and Effect of the Invention] On the fender 1,
An operation lever 2 for lifting a work machine hydraulically is guided along a lever guide 3, and a switch box 5 has an operation switch 4 such as a controller switch and an adjustment dial. With the operation of, the work machine or the like is controlled by the output from the controller.

Since the switch box 5 is mounted on the upper surface of the fender 1 via the bracket 6, it can be floated at an appropriate height and can be attached to the bottom of the switch box 5 or the lower surface of the fender 1 such as a harness. The protrusion amount can be eliminated, or the protrusion amount can be reduced even if the protrusion is caused. Moreover, the harness 7 can be made to pass through a space between the lever guide 3 located inside the switch box 5 and the fender 1 to reduce the amount of protrusion to the lower surface of the fender 1. Despite the position of the operation lever 2, the switch box 5 is located above the fender 1, so that the operation of the operation switch 4 is not disturbed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor vehicle body 9 has front wheels and rear wheels 10, is in a four-wheel drive traveling mode that can be steered by a steering wheel 11, and an engine is mounted under a hood 12 at a front portion. A bucket-shaped seat floor 8 is mounted on the rear part of the vehicle body 9, and a cockpit 14 is mounted on the seat floor 13 at the center thereof, and fenders 1 for covering the rear wheels 10 are provided on both left and right sides. Step floor 15
And a rear fender 16 connecting the left and right fenders 1 to the rear side.

On the fender 1 on the left side of the cockpit 14,
A lever guide 13 is provided, and a main shift groove 17 for guiding the main shift lever and a sub shift groove 1 for guiding the sub shift lever 1 are provided.
Has 8 mag. Further, on the right fender 1, there is a lever guide 3 along the side of the cockpit 14, and a lift lever 1 for raising and lowering a working machine such as a tiller connected to the rear side.
9 and the guide groove 2 of the operation lever 2 such as the position lever 20
1, 22 are formed. The surface of the fender 1 to which the lever guide 3 is attached is recessed downward so that the lever guide 3
The upper surface is formed to be almost the same as the upper surface of the fender 1. 27 is a lift arm which is rotated by a hydraulic cylinder.

The switch box 5 includes the lever guide 3
It is attached to the outside at the front end of the switch box.
An appropriate gap is maintained between the bottom surface of the fender 1 and the top surface of the fender 1. The operation switch 4 of the switch box 5 includes, for example, a PTO switch 23 for turning the PTO clutch on and off, and a steering mode switch 2 for switching the steering mode.
4 、 Providing a plowing depth setting dial 25 etc., seat floor 8
The harness is wired to the controller 26 mounted above.

The harness 7 is once pulled out to the lower side of the fender 1, then pulled up to the upper side of the fender 1 under the lever guide 3, and is connected to the controller 26 toward the seat floor 8 side of the fender 1. Further, the upper surface of the switch box 5 outside the lever guide 3 is projected higher than the upper surface of the fender 1. Even if the operation lever 2 is rotated, the harness 7 is
It is located outside of the operation rotation range, so that it does not get in the way.

The lift arm 27 is rotated around a lift arm shaft 30 by a hydraulic cylinder in a hydraulic case 29 on a mission case 28 at the rear of the vehicle body 9. The lift arm 27 is connected to a lower link 31 connecting a working machine and a lift. By connecting with the rod 32, the working machine can be raised and lowered by the vertical movement of the lift arm 27. A bracket plate 36, which is located above the axle housing 34 of the rear axle 33 that axially mounts the rear wheel 10 and is attached to the side surface of the mission case 28 with a bolt 35, is provided below the seat floor 8. An inclination sensor 37 for detecting the left and right inclination of the vehicle body 9, a lift arm angle sensor 38 including a potentiometer for detecting the rotation angle of the lift arm 27, and the like are attached to the upper side of 36, and a harness 39 of the lift arm angle sensor 38 is attached. The bracket plate 36 is fixed along the inside of the rib 40 bent along the side end of the bracket plate 36, and is connected to the controller 26.

A sensor shaft 41 of the lift arm angle sensor 38.
The arm 42 is fixed to the shaft, the sensor shaft 41 is provided coaxially with the lift arm shaft 30 of the lift arm 27, and the sensor pin 43 integrated with the lift arm 27 is engaged with the engaging groove of the arm 42. The rotation angle of the lift arm 27 is detected and fed back. Further, a cam 44 is attached to the sensor pin 43, and a roller 46 of a de-sera link 45 is brought into sliding contact with the cam 44 to control the lifting speed of the lift arm 27.

[Brief description of drawings]

FIG. 1 is a rear view of a rear wheel fender portion.

FIG. 2 is a side view thereof.

FIG. 3 is a plan view of a seat aroar unit.

FIG. 4 is a perspective view of the rear part of the vehicle body.

FIG. 5 is a perspective view of a lift arm unit.

FIG. 6 is a front view thereof.

[Explanation of symbols]

 1 Fender 2 Operating lever 3 Lever guide 4 Operating switch 5 Switch box 6 Bracket 7 Harness 8 Seat floor

Claims (1)

[Claims] 1. An operating lever 2 is provided on the inside of the fender 1.
The lever guide 3 for guiding the
Switch box 5 with operation switch 4 outside
Is mounted via a bracket 6, and the harness 7 of the switch box 5 is drawn into the seat floor 8 side through the space between the lever guide 3 and the fender 1.