JPH0165356U

JPH0165356U -

Info

Publication number: JPH0165356U
Application number: JP1987158791U
Authority: JP
Priority date: 1987-10-19
Filing date: 1987-10-19
Publication date: 1989-04-26
Anticipated expiration: 2002-10-19
Also published as: JPH053568Y2

Description

[Brief explanation of the drawing]

第１図及び第２図はこの考案を油圧シヨベルに
実施した一実施例を示す全体正面図で、第１図は
カウンタウエイトを吊上げる直前又は地上に着地
させた直後の状態図、第２図は同吊上げ又は吊下
げ途中の状態図、第３図は車体にカウンタウエイ
トを取付けた状態を示す一部を断面した拡大図、
第４図はカウンタウエイトの脱着工程を示す動作
説明図である。１：車体、７：アクチユエータ、１０：マスト
、１１：シーブ、１２：フツク、２０：カウンタ
ウエイト、２２：係合凹部、２３：開口部、２４
：傾斜面、２５：空圧シリンダ。 Figures 1 and 2 are overall front views showing one embodiment of this invention applied to a hydraulic excavator. Figure 1 is a state diagram of the counterweight immediately before it is lifted or just after it has landed on the ground, and Figure 2 Figure 3 is an enlarged partially cross-sectional view showing the state in which the counterweight is attached to the vehicle body;
FIG. 4 is an operational explanatory diagram showing the process of attaching and detaching the counterweight. 1: Vehicle body, 7: Actuator, 10: Mast, 11: Sheave, 12: Hook, 20: Counterweight, 22: Engagement recess, 23: Opening, 24
: Inclined surface, 25: Pneumatic cylinder.

Claims

[Scope of Claim for Utility Model Registration] (1) In a working machine such as a hydraulic excavator or a hydraulic crane, which has a working device that can be raised and lowered by an actuator at the front of the vehicle body and a counterweight which is detachably installed at the rear of the vehicle body, A mast is attached to the rear of the vehicle body with its upper end protruding toward the rear of the vehicle body, a sheave is pivotally attached to the tip of the mast, a hook is pivotally attached to the middle portion of the mast, and a hook is rotatably attached to the side of the counterweight. 1. A counterweight attachment/detachment device for a working machine, characterized in that an engaging recess is provided inside the opening, and the counterweight and the working device are connected by a removable wire rope via a sheave. (2) The counterweight attachment/detachment device for a working machine as set forth in claim 1, wherein the hook is rotated by a fluid pressure cylinder such as a pneumatic cylinder or a hydraulic cylinder. (3) A counterweight for a working machine according to claim 1 of the utility model registration claim, characterized in that the engagement recess provided on the side surface of the counterweight is an inclined surface that expands upward from the opening. Detachment device.