JPH01110876U

JPH01110876U -

Info

Publication number: JPH01110876U
Application number: JP587388U
Authority: JP
Priority date: 1988-01-22
Filing date: 1988-01-22
Publication date: 1989-07-26

Description

[Brief explanation of the drawing]

第１図は本案のボールの斜面図、第２図は第１
図Ａ―Ａ線の断面図、第３図はライニング時の作
用説明図、第４図はパイプ内面検査時の作用説明
図、第５図は従来のボールによるライニングの作
用説明図である。１……被塗装パイプ、２……末端部、３……ボ
ール、５……溝、６……被検パイプ。 Figure 1 is a slope view of the proposed ball, and Figure 2 is a slope view of the proposed ball.
3 is an explanatory diagram of the action during lining, FIG. 4 is an explanatory diagram of the action during pipe inner surface inspection, and FIG. 5 is an explanatory diagram of the action of conventional lining with balls. 1... Pipe to be painted, 2... End portion, 3... Ball, 5... Groove, 6... Pipe to be inspected.

Claims

[Scope of Claim for Utility Model Registration] (1) A ball made of foamed resin with appropriate elasticity, with an appropriate number of grooves provided on the surface of the ball, and formed to have a diameter slightly smaller than the inner diameter of the pipe to be painted. A ball for pipe work featuring the following. (2) The pipework ball according to claim 1, which is formed to have a slightly larger diameter than the inner diameter of the pipe to be tested. (3) The pipe work ball according to claim 1 or 2, wherein the groove equally divides the spherical surface into six or more parts centered on a point of contact with the spherical surface of a straight line passing through the spherical center.