JPH0189887U

JPH0189887U -

Info

Publication number: JPH0189887U
Application number: JP18655287U
Authority: JP
Priority date: 1987-12-08
Filing date: 1987-12-08
Publication date: 1989-06-13
Anticipated expiration: 2002-12-08
Also published as: JPH0622559Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る裏当て部材付きインナー
クランプ装置の構成図、第２図は第１図のＡ―Ａ
線要部断面図、第３図は第１図の裏当て部材付き
インナークランプ装置の第１走行車輪の要部構成
図、第４図は第１図の裏当て部材付きインナーク
ランプ装置の第２ハウジングケースの構成を示す
要部断面図、第５図は第４図のＢ―Ｂ線要部断面
図、第６図は第１図の裏当て部材付きインナーク
ランプ装置の第２走行車輪及び圧接部材の構成図
、第７図イは第１図の裏当て部材付きインナーク
ランプ装置をインナークランプする前の準備段階
での説明図、第７図ロは裏当て部材を突合せ端の
開先部内方に位置決めした状態での説明図、第８
図は従来の裏当て部材付きインナークランプ装置
の構成図を示す断面図、第９図イは従来の裏当て
部材付きインナークランプ装置の裏当て部材を突
合せ端の開先部内面に押し当てる前の準備段階を
示す説明図、第９図ロは第９図イの準備段階から
裏当て部材を突合せ端の開先部内方に位置決めし
ようとする時の説明図である。２１……裏当て部材付きインナークランプ装置
、２２……第１ハウジングケース、２７……裏当
て部材、３２……第１走行車輪、３３……第２ハ
ウジングケース、４４……操作ハンドル、４６…
…第２走行車輪、４７ａ……圧接部材、５０……
既設管、５１……新設管、５０ａ，５１ａ……管
軸、５２……開先部。 Figure 1 is a configuration diagram of an inner clamp device with a backing member according to the present invention, and Figure 2 is A-A in Figure 1.
3 is a cross-sectional view of the main parts of the inner clamp device with a backing member shown in FIG. 1, and FIG. 5 is a sectional view of the main part showing the structure of the housing case, FIG. 5 is a sectional view of the main part taken along the line B-B in FIG. 7A is an explanatory diagram of the inner clamping device with a backing member shown in FIG. 1 at the preparation stage before inner clamping; FIG. 7B is a diagram showing the structure of the members; FIG. Explanatory diagram with positioning, No. 8
The figure is a sectional view showing the configuration of a conventional inner clamp device with a backing member, and FIG. FIG. 9B is an explanatory diagram showing the preparation stage, and is an explanatory diagram when the backing member is to be positioned inside the groove of the abutting end from the preparation stage of FIG. 9A. 21... Inner clamp device with backing member, 22... First housing case, 27... Backing member, 32... First running wheel, 33... Second housing case, 44... Operating handle, 46...
...Second traveling wheel, 47a... Pressing member, 50...
Existing pipe, 51...New pipe, 50a, 51a...Pipe shaft, 52...Bevel portion.

Claims

[Scope of utility model registration request]

In an inner clamp device with a backing member in which a plurality of backing members extendable in the radial direction of the pipe are brought into contact with the inner surface of the welded portion of the pipe, the plurality of backing members are attached to the first housing case near the backing member. The first running wheels are provided radially in the pipe diameter direction, and the first
A second housing case is provided at the rear of the housing case in the traction direction so as to be slidable in the radial direction of the pipe, and a plurality of second running wheels and a telescoping press member are attached to the second housing case in a manner that the second housing case is slidable in the radial direction of the pipe. An inner clamp device with a backing member, characterized in that it is provided radially in the direction.