JPS6447794U

JPS6447794U -

Info

Publication number: JPS6447794U
Application number: JP14368487U
Authority: JP
Priority date: 1987-09-19
Filing date: 1987-09-19
Publication date: 1989-03-24
Also published as: JPH0450307Y2

Description

[Brief explanation of the drawing]

第１図〜第４図は、本考案のスライド装置の説
明図であつて、第１図は組付状態断面図、第２図
はスライド具本体の説明図、第３図はシムの説明
図、第４図はシム抜け止め規制具の説明図である
。第５図は、従来のスライド装置を取り付けた伸
縮ブームの側面図、第６図は第５図の―断面
拡大図である。外側ブーム；１、内側ブーム；２、スライド装
置；Ａ、スライド具本体；９、シム；１１，１１
…、シム抜け止め規制具；１２。 Figures 1 to 4 are explanatory views of the slide device of the present invention, in which Figure 1 is a sectional view of the assembled state, Figure 2 is an explanatory view of the slide device body, and Figure 3 is an explanatory view of the shim. , FIG. 4 is an explanatory diagram of the shim retaining restrictor. FIG. 5 is a side view of a telescopic boom equipped with a conventional slide device, and FIG. 6 is an enlarged cross-sectional view of FIG. 5. Outer boom; 1, inner boom; 2, slide device; A, slide device body; 9, shim; 11, 11
..., shim removal prevention regulator; 12.

Claims

[Scope of utility model registration request]

A slide device installed between opposing side plates of an outer boom of a telescopic boom and an inner boom that is telescopically inserted into the outer boom, the slide device having one side attached to the outer surface of the side plate of the inner boom or the inner surface of the side plate of the outer boom. A slide device body consisting of a plate portion having a sliding surface that slides on the other side and a seat surface on the other side, and a shaft portion of the plate portion that is erected on the seat surface; a positioning hole that receives the shaft portion of the slide tool main body and orients the plate portion of the slide tool main body to the inside of the outer boom side plate or the outside of the inner boom side plate; and the seat of the slide tool main body that receives the shaft portion in the position hole a plurality of shims interposed between the surface and the inner surface of the outer boom side plate or the outer surface of the inner boom side plate;
The plurality of shims are formed in a flat plate shape with a U-shaped notch that loosely fits into the shaft portion of the slide main body, and the shims are The retaining restrictor has a U-shaped notch into which the shaft of the slide main body is fitted, and has at least an outer end thereof smaller in width than the shaft. In addition, it is formed in a flat plate shape with a bent portion at the end opposite to the notch, and when the U-shaped notch is inserted into and removed from the shaft portion, the outer end of the U-shaped notch is is constructed such that it expands and returns to its original position by the shaft within an elastic range, and when the U-shaped notch is fitted into the shaft, the bent portion loosely fits the U-shaped notch into the shaft. A slide device for a telescopic boom, characterized in that the slide device is configured to restrict removal of the shim.