JPS6177190U

JPS6177190U -

Info

Publication number: JPS6177190U
Application number: JP15834984U
Authority: JP
Priority date: 1984-10-22
Filing date: 1984-10-22
Publication date: 1986-05-23

Description

[Brief explanation of the drawing]

第１図はこの考案の治具の使用状態を示す概略
正面図、第２図はその部分拡大断面図、第３図は
従来の治具の使用状態を示す部分断面図、第４図
はリーフアークレーンの概略正面図である。図面において、１…クレーンコラム、１ａ…下
部コラム、１ｂ…上部コラム、２…接合部、３…
フツク片、４…切欠部、５…この考案の治具、６
…環状板、７…当接片、８…くさび打込み片、９
…くさび打込み溝、１０，１０′…くさび、１１
…吊り金具、１２…ハツト体、１３…ジブ。 Fig. 1 is a schematic front view showing how the jig of this invention is used, Fig. 2 is a partially enlarged sectional view thereof, Fig. 3 is a partial sectional view showing how the conventional jig is used, and Fig. 4 is a leaf. It is a schematic front view of an arc lane. In the drawings, 1...crane column, 1a...lower column, 1b...upper column, 2...junction, 3...
Hook piece, 4... Notch, 5... Jig of this invention, 6
... Annular plate, 7... Contact piece, 8... Wedge driving piece, 9
...Wedge driving groove, 10, 10'...Wedge, 11
...Hanging metal fittings, 12...Hut body, 13...Jib.

Claims

[Scope of utility model registration request]

A groove alignment jig for butt welding a truncated cone divided into upper and lower parts, which includes an annular plate having the same inner diameter as the outer diameter of the lower part of the upper cone, and a circumference of the annular plate on the upper surface of the annular plate. a plurality of abutment pieces that are vertically attached at predetermined intervals in the direction, the inner sides of which abut on the outer circumferential surface of the upper cone, and which have the same sloped surface as the upper cone on the inside; and the annular plate. The upper cone and the lower cone are attached vertically to the lower surface of the cone at predetermined intervals in the circumferential direction of the upper cone and the lower cone, and the inside thereof is close to the outer peripheral surface near the joint of the upper cone and the lower cone. It has the same slope on the inside as
A plurality of wedge driving pieces are provided with wedge driving grooves on the upper and lower parts of the inner side, and the wedge driving pieces are driven into the wedge driving grooves to prevent misalignment between the upper cone and the lower cone. A groove alignment jig for truncated cone butt welding, comprising a wedge for correction.