JPH0523642Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a valve mounting device for a vehicle (prior art) For example, a tractor equipped with a backhoe at the rear of the vehicle body has a valve mounting device shown in Figs. 6 and 7 at the rear of the vehicle body. As shown in FIG. 2, a valve stand 2 is erected corresponding to step 1, a control valve 4 for controlling the backhoe having an upwardly protruding operating lever 3 is attached to this valve stand 2, and a control valve 4 for controlling a backhoe is mounted in front of the valve stand 2. The operator is seated on seat 5 provided at step 1, and with his feet on both sides of step 1,
There is one in which the control lever 3 is operated.

However, conventionally, the control valve 4 was simply fixedly attached to the valve stand 2 as shown in the figure.

(Problem to be solved by the invention) Therefore, in the conventional case, the protruding position of the operating lever 3 of the control valve 4 is constant, and therefore the operating lever may vary depending on the physique and sitting posture of the operator sitting on the seat 5. The position of the operating lever 3 may be too far away from the operator or too close to the operator, making it difficult to operate the operating lever 3.

In view of the above-mentioned problems, the present invention is designed to change the protruding position of the operating lever to suit the differences in the operator's physique, posture, etc., so that the operating lever can always be operated easily. .

(Means for Solving the Problem) The technical means of the present invention for solving this technical problem is to provide an operation box 30 at a position spaced apart from the seat 31 in the front and back direction, and a control valve 32 having a protruding operation lever 33. Control box 3
In a valve mounting device for a vehicle in which a control lever 33 of a control valve 32 is provided inside a control box 30 and protrudes upward from a control box 30, the control valve 32 is mounted on a valve mounting base 3.
4, and a valve mounting base 34 is provided in the control box 30 so as to be swing-adjustable in the front and rear directions so that the operating lever 33 can move towards and away from the seat 31.

(Function) By adjusting the swing of the valve mounting base 34 with respect to the control box 30, the control valve 3
The operating lever 33 can be moved toward and away from the seat 31 by swinging the entire seat 2 back and forth, thereby making it possible to change the operating lever 33 to the position where it is most easily operated.

(Embodiment) The present invention will be described below according to the illustrated embodiment. In FIG. 3, numeral 9 represents a tractor body, and numeral 10 represents a rear wheel.

11 is a backhoe attached to the rear of the tractor body 9. As shown in FIGS. 4 and 5, this backhoe 11 includes a swing bracket 12,
First and second booms 13, 14 and bucket 15
and hydraulic cylinders 16, 17, 18 for operating these booms 13, 14 and bucket 15. The swing bracket 12 has a vertical shaft 20 attached to a main frame 19 that projects rearward from the tractor body 9.
It is attached so as to be rotatable around the rear shaft 20, and the rotation can be adjusted around the rear shaft 20 by a swing hydraulic cylinder (not shown).

Reference numeral 23 is a limit switch provided on the main frame 19, and when the swing bracket 12 is located at the center so that the booms 13 and 14 project straight rearward from the tractor body 9,
The protrusion 24 is configured to be pushed on and off. Reference numeral 25 denotes an indicator light, which is attached to an easily visible position such as the upper end of a mounting bracket 26 protruding from the boom 13. This indicator light 25 lights up when the limit switch 23 is turned on, and the boom 1
It is designed to display that numbers 3 and 14 are located at the center.

In FIGS. 1, 2, and 3, a step 29 is formed in a U-shape and is disposed at the rear of the tractor body 9. As shown in FIGS. 30 is a U-shaped control box, which is installed upright at the rear of the vehicle body 9 in correspondence with the step 29. Reference numeral 31 denotes a seat for operating a boat hoe, which is arranged facing backward in front of the control box 30. 32 is the hydraulic cylinder 16, 17, 18
It is a control valve for controlling a backhoe that drives a hydraulic cylinder for swinging, has an operating lever 33 projecting upward, and is fixed to a valve mount 34. The upper end of the valve mounting base 34 is pivotally supported by a pivot pin 36 via a pair of left and right brackets 35 to the control box 30 so as to be swingable back and forth. Further, the lower end of the valve mounting base 34 is connected to a mounting pin 39 via a pair of left and right brackets 38 to angle adjustment holes 37 provided in a plurality of circular arcs around the pivot pin 36 at the bottom of the control box 30. As a result, the control valve 32 is installed in the front-back swing adjustment itself relative to the control box 30, and the protruding position of the control lever 33 is adjusted in the front-back direction as shown by the chain line in FIG. The movement is adjustable.
Note that the mounting pin 39 is prevented from being removed by a β pin 40 or the like.

(Effect of the invention) According to the invention, the control valve 32 is fixed to the valve mount 34, and the valve mount 34 is attached to the control box 30 so that the control lever 33 can move toward and away from the seat 31. Since the valve mounting base 34 is swing-adjustable in the front-back direction, by swing-adjusting the valve mounting base 34 with respect to the control box 30,
The operating lever 33 can be moved toward and away from the seat 31, and the position of the operating lever 33 can be changed to the position that is easiest to operate according to the operator's physique, posture, etc. The operating lever 33 can always be operated easily regardless of the difference in posture or the like. Moreover, even if the valve mounting base 34 is adjusted to swing, the control box 30 remains fixed, and the control box 30 may tilt back and forth.
In addition, the operator does not move towards or away from the seat 31, which makes it difficult for the operator to sit on the seat 31, and does not cause problems such as unstable or troublesome operation of the operating lever 33. Furthermore, when the valve mounting base 34 is adjusted to swing, the entire control valve 32 swings back and forth, so the relative position between the operating lever 33 and the control valve body does not change, and the connection between the operating lever 33 and the control valve body is improved. The operating lever 33 can be operated smoothly without causing any trouble in interlocking, and its practical effects are significant.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a valve base portion showing one embodiment of the present invention, and FIG. 2 is a plan view of the valve base portion.
Fig. 3 is a side view of the same, Fig. 4 is an enlarged side view of the swing bracket portion of the same, Fig. 5 is a cross-sectional view taken along the line A-A of Fig. 4. Fig. 6 is a side view of a conventional example, and Fig. 7 is a plan view of the same. 9 ... tractor body, 30 ... control box,
32...control valve, 33...operating lever.

Claims (1)

[Claims for Utility Model Registration] An operation box 30 is provided at a position spaced apart from the seat 31 in the longitudinal direction, and a control valve 32 having a protruding operation lever 33 is installed in the operation box 30.
In a valve mounting device for a vehicle in which a control lever 33 of a control valve 32 is provided inside a control box 30 and protrudes upward from a control box 30, the control valve 32 is mounted on a valve mounting base 3.
4, and a valve mounting base 34 is provided in a control box 30 so as to be swingable in the longitudinal direction so that an operating lever 33 can move toward and away from a seat 31. Mounting device.