JPH01160046U

JPH01160046U -

Info

Publication number: JPH01160046U
Application number: JP5407088U
Authority: JP
Priority date: 1988-04-21
Filing date: 1988-04-21
Publication date: 1989-11-07

Description

[Brief explanation of the drawing]

第１図は本考案にかかる油圧式掘削機の側面図
、第２図は第１図のエキステンシヨンアーム部分
の拡大図、第３図は第１図の回転機構の断面詳細
図、第４図は本考案の油圧式掘削機による作業例
で、ａは高所作業、ｂは深掘り作業、ｃは地なら
し作業の状態図、第５図は本考案の他の実施例の
側面図、第６図は第５図の回転機構の断面詳細図
、第７図は他の実施例の油圧式掘削機による作業
例で、ａは高所作業、ｂは深掘り作業の状態図、
第８図は従来のコーナ用パワーシヨベルの側面図
である。１……本体（掘削機）、２……ブーム、３……
第１アーム、４……エキステンシヨンアーム、５
……第２アーム、６……バケツト、７……回転機
構、Ａ，Ｂ……アーム部片、２１……ブラケツト
、２２……バケツト取付部材。 Fig. 1 is a side view of the hydraulic excavator according to the present invention, Fig. 2 is an enlarged view of the extension arm portion of Fig. 1, Fig. 3 is a detailed sectional view of the rotation mechanism of Fig. 1, and Fig. 4 is a detailed view of the rotation mechanism of Fig. 1. The figures show examples of work performed by the hydraulic excavator of the present invention, in which a is work at high places, b is deep digging work, c is a state diagram of earth grading work, and Figure 5 is a side view of another embodiment of the present invention. 6 is a detailed cross-sectional view of the rotation mechanism shown in FIG. 5, and FIG. 7 is an example of work performed by a hydraulic excavator according to another embodiment, in which a is a state diagram of high-place work, and b is a state diagram of deep digging work.
FIG. 8 is a side view of a conventional corner power shovel. 1...Body (excavator), 2...Boom, 3...
1st arm, 4...Extension arm, 5
...Second arm, 6...Bucket, 7...Rotating mechanism, A, B...Arm pieces, 21...Bracket, 22...Bucket mounting member.

Claims

[Scope of Claim for Utility Model Registration] (1) A boom installed on the main body of a hydraulic excavator so that it can be raised and lowered, a first arm that is rotatably installed at the tip of this boom, and a plurality of units installed in front of the first arm. A second arm is provided via an extension arm formed by parallel connection of two arm pieces, and a bucket is provided at the tip of the second arm, and a bucket is provided at an appropriate location between the boom and the bucket. A hydraulic excavator equipped with a rotating mechanism. (2) The hydraulic excavator according to claim 1, wherein the rotation mechanism is provided on the first arm. (3) The hydraulic excavator according to claim 1, wherein the rotation mechanism is provided at a bucket attachment portion between the second arm and the bucket.