JPH0249984U

JPH0249984U -

Info

Publication number: JPH0249984U
Application number: JP12898488U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-06
Anticipated expiration: 2003-09-30
Also published as: JPH0636050Y2

Description

[Brief explanation of drawings]

第１図〜第５図は、本考案のスライド装置の説
明図であつて、第１図は、組付状態図、第２図は
、組付状態断面図、第３図はスライド具本体の説
明図、第４図はシムの説明図、第５図はシム抜け
止め規制具の説明図、第６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７図は
第６図のＸ―Ｘ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、偏平部；１６ａ
、係合部；１０ａ。 1 to 5 are explanatory diagrams of the slide device of the present invention, in which FIG. 1 is an assembled state diagram, FIG. 2 is an assembled state sectional view, and FIG. 3 is a slide device main body. Figure 4 is an explanatory diagram of the shim, Figure 5 is an explanatory diagram of the shim retainer, Figure 6 is a side view of a telescopic boom with a conventional slide device attached, and Figure 7 is Figure 6. It is an enlarged cross-sectional view of XX. Outer boom; 1, inner boom; 2, slide device; A, slide device body; 9, shim; 11, 11
..., shim removal prevention regulator; 12, flat part; 16a
, engaging portion; 10a.

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 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, which is bored in the side plate of the outer boom or inner boom. 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; 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 having a U-shaped notch that loosely fits into the shaft portion of the slide main body, and The retaining restrictor has a U-shaped notch into which the shaft of the slide main body is fitted, and at least the outer end of the U-shaped notch is smaller than the width of 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 within the elastic range of the shaft, and when the U-shaped notch is inserted into the shaft, the bent portion loosely fits the U-shaped notch into the shaft. The shim is configured to restrict removal of the shim, and the shaft portion of the slide main body is provided with a flat portion, and the positioning hole portion is configured to restrict the shaft portion of the slide tool body from being pulled out when the shaft portion of the slide tool main body is received in the positioning hole. 1. A slide device for a telescopic boom, characterized in that the slide device is configured to include an engaging portion that faces and engages with a flat portion of the slide member to restrict rotation of the slide tool main body within a positioning hole.