JPH0223059U

JPH0223059U -

Info

Publication number: JPH0223059U
Application number: JP10012388U
Authority: JP
Priority date: 1988-07-28
Filing date: 1988-07-28
Publication date: 1990-02-15

Description

[Brief explanation of drawings]

第１図は本考案にかかる油圧掘削機の旋回用操
作ペダルの要部の平面図、第２図は第１図のＡ―
Ａ断面図、第３図は本考案を適用した油圧掘削機
の全体側面図、第４図は本考案の他の実施例の要
部の平面図、第５図は第４図のＢ―Ｂ断面図、第
６図は第４図のＣ―Ｃ断面図である。１……ブーム、２……アーム、３……バケツト
、４……旋回体、５……フロア、６……操作ペダ
ル、７……走行体、８……取り付け台、９……旋
回用油圧切換バルブ、１０……スプール、１１…
…支え材、１２……弾性体、２１……操作ペダル
、２２……支え材。 FIG. 1 is a plan view of the main parts of the swing operation pedal of a hydraulic excavator according to the present invention, and FIG.
A sectional view, FIG. 3 is an overall side view of a hydraulic excavator to which the present invention is applied, FIG. 4 is a plan view of main parts of another embodiment of the present invention, and FIG. The sectional view, FIG. 6, is a sectional view taken along line CC in FIG. 1... Boom, 2... Arm, 3... Bucket, 4... Swivel body, 5... Floor, 6... Operating pedal, 7... Traveling body, 8... Mounting base, 9... Hydraulic pressure for swinging Switching valve, 10...Spool, 11...
...Support material, 12...Elastic body, 21...Operation pedal, 22...Support material.

Claims

[Scope of utility model registration request]

In a hydraulic excavator in which a swing operation pedal is provided on the floor of a revolving body on which working equipment such as a boom, arm, bucket, etc. is attached, and the operating pedal is operated to rotate the revolving body, a position lower than the upper surface of the floor. a pedal mounting base fixed to the pedal, and a swing hydraulic switching valve having spools protruding from the upper surface of the floor on the left and right sides of the pedal mounting base, respectively;
The mounting base has a rotatable supporting member protruding from the upper surface of the floor at its lower part, so that it can be rotated from a neutral position to left and right positions when in operation, and is configured to always return to the neutral position by an elastic body when not in operation. Hydraulic excavation, characterized in that the spool is equipped with an operation pedal that switches the hydraulic switching valve for swinging to a swinging operation when the spool is pressed by rotating to either of the left and right positions. Operation pedal for turning the machine.