JPH0429355U

JPH0429355U -

Info

Publication number: JPH0429355U
Application number: JP7090990U
Authority: JP
Priority date: 1990-07-02
Filing date: 1990-07-02
Publication date: 1992-03-09
Anticipated expiration: 2005-07-02
Also published as: JPH0730273Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案の一実施例を示すも
のであつて、第１図乃至第３図はその平常状態を
示し、第１図は第２図におけるＩ−Ｉ断面図、第
２図は第１図における−断面図、第３図は第
２図における−断面図である。第４図及び第
５図は拡開した状態を示し、第４図は第１図と、
第５図は第２図とそれぞれ同じ位置での断面図で
ある。第６図は本考案における収縮手段の他の実
施例を示す主要部の縦断面図である。１……圧潰装置、２……本体、３……先端部、
４……後端部、６……分割片、７……外周面、８
……内周面、９……拡開部材、１５……収縮手段
、１７……球体（鋼球）、２１，２２……凹部。 1 to 5 show an embodiment of the present invention, and FIGS. 1 to 3 show its normal state, and FIG. 1 is a sectional view taken along line II in FIG. 2 is a cross-sectional view taken in FIG. 1, and FIG. 3 is a cross-sectional view taken in FIG. 2. Figures 4 and 5 show the expanded state, and Figure 4 is the same as Figure 1,
FIG. 5 is a sectional view taken at the same position as FIG. 2. FIG. 6 is a longitudinal cross-sectional view of the main parts of another embodiment of the contraction means of the present invention. 1... Crushing device, 2... Main body, 3... Tip part,
4...Rear end portion, 6...Divided piece, 7...Outer peripheral surface, 8
...Inner peripheral surface, 9... Expansion member, 15... Contraction means, 17... Sphere (steel ball), 21, 22... Recessed portion.

Claims

[Claims for Utility Model Registration] 1. A main body 2 formed by connecting a tip 3 and a rear end 4 of a rigid cylindrical body with a slightly tapered tip, and the tip 3 of the main body 2. It is fitted between the rear end portion 4 so as to be able to slide in the radial direction and to be able to swing slightly, and in a state where it is slid inwardly with respect to the main body 2, the outer peripheral surface 7 is connected to the front end portion 3 of the main body 2. A plurality of divided pieces 6 form a cylindrical surface continuous with the rear end portion 4, and the inner peripheral surface 8 forms a tapered truncated conical surface when the outer peripheral surface 7 protrudes from the main body 2; an expanding member 9 which is provided so as to be slidable back and forth along the central axis and which is always biased rearward, the outer peripheral surface of which forms a truncated conical surface that conforms to the inner peripheral surface 8 of the divided piece 6; The outer peripheral surface 7 of the divided piece 6 is connected to the main body 2.
The split piece shrinking means 15 stably holds the split piece 6 relative to the main body 2 while forming a continuous surface with the front end 3 and rear end 4 of the pipe. A device that crushes burrs. 2. A direction in which the divided piece contraction means 15 is provided so as to be retractable from either the front and rear end surfaces of the divided piece 6 and the mutually opposing surfaces of the front end 3 and rear end 4 of the main body 2, and always projects. a sphere 17 that is biased by a force, and a substantially concave portion 2 formed in the other side.
Claim 1, characterized in that it consists of 1 and 22.
A device for crushing burrs in a pipe line as described in