JPS6239461Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved boot for an operating lever.

In the above operation lever boot, conventionally, the fifth
As shown in the figure, a circumferential groove 2 that fits into the lever through hole forming member 24 that fixes the boot 23
5, the width d of the circumferential groove 25 is made the same throughout, and the width d of the circumferential groove 25 is made the same throughout, and the thickness t of the lever through-hole forming member 24 is varied depending on the model, etc. I had prepared a dedicated boot 23 with a circumferential groove 25 having a width d, but
It is necessary to prepare many types of boots 23, which impedes commonality and standardization of parts, and has disadvantages in terms of cost, part management, etc.

In view of the above-mentioned points, it is an object of the present invention to enable one type of boot to be adapted to lever through-hole forming members of various thicknesses, which is advantageous in terms of manufacturing.

A characteristic feature of the operating lever boot according to the present invention is that the circumferential groove into which the lever through-hole forming member is inserted is formed in a shape that continuously changes in width so that the width becomes smaller toward the back.

The effects of the characteristic configuration of the present invention are as follows.

In other words, by continuously changing the width of the circumferential groove so that it becomes smaller toward the back, the lever can be penetrated through boots of the same specifications by simply changing the hole diameter of the lever penetration hole forming member according to the thickness of that member. It can be adapted to the hole forming member regardless of its thickness, and therefore, the boots can be made common and standardized, which is advantageous in terms of cost, and the burden of parts inventory management can be reduced.

Next, an example will be described.

As shown in FIG. 1, a driving cabin 3,
A swivel base 5 equipped with a driving unit 4 placed behind the swivel base 5 is attached so as to be fully rotatable, and a backhoe working device 6 is attached to the front end of the swivel base 5 so as to be able to change direction around the vertical axis. The work vehicle is configured to be able to perform excavation work and soil removal work alternatively.

In the operating cabin 3, as shown in FIG. 2, a pair of left and right levers 14b, 14b, which are swingable back and forth, for steering the aircraft are erected on the floor plate 9 in front of the driver's seat 7, The boom 10 and the bucket 11 of the backhoe work device 6 are individually swung. The lever 14a, which can swing in a cross direction, is used to operate the two cylinders 12 and 13, and the arm 15 of the backhoe work device 6 is swung. cylinder 1
6, and a cross-swingable lever 14a for operating the fluid pressure motor M that drives the swivel base 5, are mounted on stands 17a on both left and right sides of the driver's seat 7,
A lever 18 that can swing forward and backward to operate the accelerator device (not shown) of the engine E, and a cylinder 19 that operates the dozer 2 to raise and lower it.
A lever 20 that can swing back and forth for operating the backhoe working device 6 and a lever 22 that can swing back and forth for operating the cylinder 21 that changes the mounting direction of the backhoe working device 6 with respect to the swivel base 5 are connected to the driver's seat 7. It is arranged on the side opposite to the passageway 8 for boarding and alighting with respect to the driver's seat 7.

The operating levers 14a, 14a and the stand 17
The boots 23 spanning between a and 17b are placed on the stand 1.
7a, 17b, as shown in FIG.
The width d ₁ is formed on the boot 23 so that it continuously changes so that it becomes smaller toward the back, and the thickness t ₁ is formed on the top plate 24.
A lever through hole having a hole diameter D ₁ corresponding to the groove width d ₁ is bored, and the boot 23 is fitted onto the top plate 24 with the peripheral edge of the lever through hole tightly fitting into the circumferential groove 25 . Additionally, boots 23 having the same specifications as those described above are provided between the operating levers 14b, 14b and the floor plate 9. As shown, a bar through hole with a hole diameter D ₂ corresponding to the plate thickness t ₂ and groove width d ₂ of the floor plate 9 is bored in the floor plate 9, and the boot 23 is placed in the floor plate 9, and the periphery of the lever through hole is aligned with the circumferential groove. 25 in a tight fit state.

Next, another example will be shown.

As shown in FIG. 4, the thickness of the circumferential wall 26 forming the circumferential groove 25 may be formed to increase toward the inner side of the circumferential groove 25, so that the circumferential groove 25 becomes difficult to deform. .

The object to which the boot 23 is attached does not matter, and they are collectively referred to as the lever through-hole forming members 9 and 24.

The present invention is applicable not only to backhoe work vehicles, but also to various work vehicles such as crane trucks and dozer vehicles, and to the boot structure of operating levers of other stationary work equipment.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the operating lever boot according to the present invention, FIG. 1 is an overall side view of the working vehicle, FIG. 2 is a plan view of the driving section, and FIG. 3 is a main part of the boot. Partially cutaway sectional view, FIG. 4 is a partially cutaway sectional view of the main part showing another embodiment. FIG. 5 is a partially cutaway sectional view of a main part showing a conventional structure. 9, 24... Lever through hole forming member, 25...
...Zhou groove.

Claims (1)

[Scope of utility model registration request] A boot for an operating lever characterized in that a circumferential groove 25 into which a lever through-hole forming member 9, 24 is fitted is formed in a shape that continuously changes in width so that the width becomes smaller toward the back.