JPH0280163U

JPH0280163U -

Info

Publication number: JPH0280163U
Application number: JP16042488U
Authority: JP
Priority date: 1988-12-12
Filing date: 1988-12-12
Publication date: 1990-06-20

Description

[Brief explanation of drawings]

図面はこの考案の一実施例を示し、第１図は全
体的な側面図、第２図は第１図円内の拡大断面
図、第３図及び第４図は作用説明図、第５図及び
第６図は従来の説明図である。１…下部走行体、２…履帯、３…上部旋回体、
７…作業機、８…オフセツトアーム、１１…アー
ム、１１ａ…第１アーム、１１ｂ…第２アーム、
１３…バケツトシリンダ、１４…バケツト、１５
…旋回機構、１６…旋回ベアリング、１７…旋回
モータ、１９…スイベルジヨイント。 The drawings show an embodiment of this invention, with Fig. 1 being an overall side view, Fig. 2 being an enlarged cross-sectional view within the circle in Fig. 1, Fig. 3 and 4 being explanatory diagrams, and Fig. 5. and FIG. 6 are conventional explanatory diagrams. 1... lower traveling body, 2... crawler track, 3... upper rotating body,
7... Working machine, 8... Offset arm, 11... Arm, 11a... First arm, 11b... Second arm,
13...bucket cylinder, 14...bucket cylinder, 15
...Swivel mechanism, 16...Swivel bearing, 17...Swivel motor, 19...Swivel joint.

Claims

[Claims for Utility Model Registration] (1) An upper revolving body 3 which can swing freely is provided on the lower traveling body 1 which can run freely using crawler tracks 21, and the tip side of the upper revolving body is movable in the vehicle width direction by an offset mechanism. In an ultra-small swing power shovel equipped with a working machine 7 having an offset boom 8, the arm 11 of the working machine 7 is composed of a first arm 11a and a second arm 11b, and these arms 11a,
An arm rotation mechanism 15 for rotating the second arm 11b is provided between the second arm 11b and the second arm 1
This ultra-small swing power shovel is provided with a bucket 14 rotatable by a bucket cylinder 13 at the tip of 1b. (2) The arm rotation mechanism 15 is connected to a rotation bearing 16 that rotatably connects the first and second arms 11a and 11b, and a rotation bearing 16 that is attached to the first arm 11a side and rotates the second arm 11b side. The ultra-small swing power swivel according to claim 1, comprising a swing motor 17. (3) A swivel joint 19 is provided at the center of the arm rotation mechanism 15 for supplying hydraulic pressure from the first arm 11a side to the bucket 14 provided on the second arm 11b. Super small turning power swivel.