JPH02105986U

JPH02105986U -

Info

Publication number: JPH02105986U
Application number: JP1583889U
Authority: JP
Priority date: 1989-02-13
Filing date: 1989-02-13
Publication date: 1990-08-23

Description

[Brief explanation of drawings]

第１図〜第３図は、本考案に係る車輌搭載型ク
レーンのアウトリガ装置の伸縮駆動装置の説明図
であり、第１図は、アウトリガ装置の縦断面図、
第２図は第１図のＸ―Ｘ断面図、第３図は第２図
に対応する他の実施例の説明図である。第４図は
、従来のものの説明図である。外筒；１、内筒；３、ジヤツキ装置；２、支承
部；４、空間；５、ジヤツキ用送油ホース；６、
スプロケツト又は滑車；９，１０、チエーン又は
ワイヤーロープ；１３、電動モータ又は油圧モー
タ；１４。 1 to 3 are explanatory diagrams of a telescopic drive device of an outrigger device of a vehicle-mounted crane according to the present invention, and FIG. 1 is a longitudinal cross-sectional view of the outrigger device;
FIG. 2 is a sectional view taken along the line XX in FIG. 1, and FIG. 3 is an explanatory diagram of another embodiment corresponding to FIG. 2. FIG. 4 is an explanatory diagram of the conventional one. Outer cylinder; 1, Inner cylinder; 3, Jacking device; 2, Support part; 4, Space; 5, Oil supply hose for jacking; 6,
Sprocket or pulley; 9, 10; Chain or wire rope; 13; Electric motor or hydraulic motor; 14.

Claims

[Scope of Claim for Utility Model Registration] An outer cylinder, an inner cylinder that is telescopically inserted into the outer cylinder and has a hydraulic jacking device superimposed on its tip, A support part is provided that abuts the upper surface of the top plate of the inner cylinder at a position separated from the lower surface of the top plate of the outer cylinder, and a space is secured between each top plate of the outer cylinder and the inner cylinder by the support part. At the same time, a jack oil supply hose is provided, one end of which is fixed at a suitable location in the outer cylinder facing the space, passes through the space, reaches deep inside the outer cylinder, is turned back there, and reaches the inside of the inner cylinder. In an outrigger device for a vehicle-mounted crane configured to supply and discharge driving hydraulic pressure from the outer cylinder side to the hydraulic jack through the jack oil supply hose, a position near the outer end of the outer cylinder in the space and a position outside the outer cylinder A movable sprocket or pulley is provided at a position toward the back of the cylinder, and a chain or wire rope, one end of which is fixed at a proper position above the base end of the inner cylinder, is hung around one of the sprockets or pulleys and then the other. and the other end is fixed to the upper side of the base end of the inner cylinder, and the chain or wire rope is driven by an electric motor or a hydraulic motor provided at a proper position in the outer cylinder. Telescoping drive device for the outrigger device of type cranes.