JPH0342122Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a control lever mounting structure for a power working machine.

Conventionally, in power working machines such as backhoes,
Pivot brackets for various operation levers are fixedly provided at a fixed position on the driving section, and wire receivers for interlocking wires that are interlocked by the operation levers are also provided.
Because it was fixedly installed opposite the pivot bracket, it was impossible to adjust the position of the various operating levers, making it impossible to arrange the operating levers to suit the physique of the driver, and making it impossible to adjust the position of the operating levers to suit the physique of the driver. When the number of attachment control levers increased in addition to the control levers, it was not possible to mount the control levers to fit the space of the driving section.

In the present invention, the lower horizontal part of the bracket main body, which has a substantially U-shaped side surface, is configured so that it can be detachably attached to the desired position of the operating section, and the upper horizontal part of the bracket main body is operated. A lever is pivotally supported, and a wire connecting body is provided at the tip of the lever to face the lower horizontal side of the bracket body, and the inner wire of the interlocking wire is connected to the connecting body, and a wire connecting body is connected to the lower horizontal side of the bracket body. By supporting the outer wire of the interlocking wire, the control lever can be placed in a position that suits the driver's physique, and in addition to the standard control lever, the control lever can be installed even when the number of control levers on attachments increases. It is an object of the present invention to provide an operation lever mounting structure for a power working machine that allows the operation lever to be mounted in accordance with the space of the vehicle.

The embodiment of the present invention will be explained in detail based on the drawings.
A shows a backhoe as a power working machine. The backhoe A has a swing frame 2 mounted on the top of a base 1, and a cabin 4 housing a driving unit 3 in the front part of the frame 2. A prime mover casing 5 is arranged at the rear of each frame 2, a working part 6 is arranged at the front side of the frame 2, and a base 1
A crawler-type traveling section 7 is disposed at the bottom of the machine, and various tasks can be performed by operating the working section 6.

The working section 6 includes a main boom 8 whose base end is pivoted to the front part of the revolving frame 2, a sub-boom 9 whose base end is pivoted to the tip of the main boom 8, and a bucket 10 pivoted to the tip of the sub-boom 9. In particular, the bucket 10 can be replaced with a rock drill or the like as 11.

The operation of this 11 is performed through the interlocking operation of a hydraulic control valve 12 disposed on the lower side of the operating section 3.The operation lever 13 for operating the valve 12 is attached as follows. It is being done.

That is, 14 is a bracket main body, and the bracket main body 14 has a substantially U-shaped side surface, and a U-shaped support 16 is connected to the upper horizontal portion 15 at one end, and the support 16 is operated. The tip of the lever 13 is pivotally supported, and the lever 13 is rotatable around the tip. Further, a wire connecting body 17 is provided protruding from the tip of the lever 13, and the connecting body 17 is opposed to the other end of the bracket body 14 opposite to the one end, that is, the lower horizontal portion 20.

Then, the base end of an inner wire 19 of a push-pull interlocking wire 18 for interlocking the hydraulic control valve 12 is connected to the wire connecting body 17, and the base end of an outer wire 22 of the interlocking wire 18 is connected to the lower horizontal portion 20 side end. It is supported by a notch 21, and the operating lever 13 and interlocking wire 18 are integrally attached to the bracket body.

Additionally, a plate 2 is provided on one side of the bracket body 14.
3 is stretched, and a part of the plate body 23 is bent inwardly protruding from the bracket main body 14, and the protruding portion 24
A guide tube 25 is inserted and supported in a substantially vertical state between the lower horizontal portion 20 and the lower horizontal portion 20, and a sliding rod 26 is slidably inserted into the guide tube 25, and the upper and lower portions of the sliding rod 26 are Upper and lower stopper bodies 27 are provided at the protruding ends, respectively.
28 are screwed together so that they can freely slide vertically, and a biasing spring 29 is interposed between the vertical stopper body 27 and the protrusion 24 to bias the sliding rod 26 in the vertical sliding direction. . Such upper and lower stopper body 2
7 is opposed to the lower surface of the wire connector 17, and when the lower surface of the wire connector 17 is in contact with the upper and lower stopper body 27 without resisting the biasing force of the biasing spring 29, the operating lever 13, Therefore, when returning the operating lever 13 from the pull state of the inner wire 19 to the neutral position, the wire connecting body 17
The neutral position can be easily confirmed by contacting the upper stopper body 27, and the operation lever 13 can be moved from the neutral state to the inner wire 19.
When the push state is activated, it is performed against the biasing force of the bias spring 29, and the return operation from the push state to the neutral position can be performed by restoring the bias spring 29.

Further, in the figure, reference numerals 30 and 31 are mounting holes drilled in directions perpendicular to each other, and the bracket main body 14 can be detachably mounted to a desired position of the driving section 3 through either of the mounting holes 30 or 31. It is configured like this.

In addition, numeral 32 in the figure is an operating lever for operating the bucket.

According to the present invention, the lower horizontal part of the bracket main body, which has a substantially U-shaped side surface, is configured to be removably attached to a desired position on the driving section, and the lower horizontal part of the bracket main body is attached to the upper horizontal part of the The operating lever is pivotally supported, and a wire connecting body is provided at the tip of the lever to face the lower horizontal side of the bracket body, and the inner wire of the interlocking wire is connected to the connecting body, and the wire connecting body is connected to the lower horizontal side of the bracket body. By supporting the outer wire of the interlocking wire, the control lever can be placed in a position that suits the physique of the driver, and even when the number of control levers for attachments increases in addition to the standard control levers. This has the effect of making it possible to mount the operating lever according to the space of the operating section.

In addition, the main body of the bracket to which the operating lever is attached has a substantially U-shaped side profile, so the structure is simple and strong, allowing the operating lever to be operated stably and reliably at all times. It is something.

[Brief explanation of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention, FIG. 2 is a side view of the main part, FIG. 3 is a perspective view of the main part, and FIG. 4 is a side view of the main part. A... Backhoe, 3... Driving section, 13... Operating lever, 14... Bracket, 17... Wire connection body, 18... Interlocking wire, 19... Inner wire, 22... Outer wire.

Claims (1)

[Scope of utility model registration request] The lower horizontal part 20 side of the bracket main body 14, which has a substantially U-shaped side surface, is configured to be detachably attached to a desired position of the driving part 3, and can be operated to the upper horizontal part 15 side of the bracket main body 14. Lever 13
A wire connecting body 17 is provided at the tip of the lever 13 facing the lower horizontal part 20 side of the bracket body 14, and an inner wire 19 of the interlocking wire 18 is connected to the connecting body 17. Interlocking wire 18 is connected to the lower horizontal part 20 side of 14.
An operation lever mounting structure for a power working machine that supports an outer wire 22 of