JPH0443414U

JPH0443414U -

Info

Publication number: JPH0443414U
Application number: JP2551290U
Authority: JP
Priority date: 1990-03-12
Filing date: 1990-03-12
Publication date: 1992-04-13

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の実施例で、第１図
はパイプベンダーにおける工具配置を示す斜視図
、第２図ａ，ｂはロール型の上面図と後面図、第
３図ａは第２図ａのＡ−Ａ断面拡大図、第３図ｂ
は他の実施例における縦断面拡大図、第４図ａ，
ｂは本考案のロール型で曲げ加工したパイプの斜
視図、第５図はパイプの形状を説明する水平断面
図、第６図はパイプ曲げ型の寸法選定基準を示す
線図、第７図は従来のロール型を用いたパイプベ
ンダーにおける工具配置を示す斜視図、第８図ａ
，ｂ，ｃはそれぞれ異なる形式のマンドレルの使
用態様を示す一部横断上面図、第９図はロール型
の溝形状を説明する拡大縦断面図である。１……ロール型、１ｄ……溝、１ｆ……小溝、
６……パイプ。 Figures 1 to 3 show examples of the present invention; Figure 1 is a perspective view showing the tool arrangement in a pipe bender, Figures 2a and b are top and rear views of the roll mold, and Figure 3a is a Enlarged cross-sectional view of A-A in Figure 2a, Figure 3b
are enlarged vertical cross-sectional views of other embodiments, FIG. 4a,
b is a perspective view of a pipe bent with the roll mold of the present invention, Fig. 5 is a horizontal sectional view explaining the shape of the pipe, Fig. 6 is a diagram showing the size selection criteria of the pipe bending die, and Fig. 7 is a A perspective view showing the tool arrangement in a conventional roll-type pipe bender, FIG. 8a
, b, and c are partially cross-sectional top views showing how different types of mandrels are used, and FIG. 9 is an enlarged vertical cross-sectional view illustrating the shape of a roll-type groove. 1...roll type, 1d...groove, 1f...small groove,
6...Pipe.

補正平３．１０．２５図面の簡単な説明を次のように補正する。明細書第９頁第１５行目乃至第１７行目に「第
４図ａ，ｂは本考案のロール型で曲げ加工したパ
イプの斜視図、第５図は」とあるを「第４図は本
考案のロール型で曲げ加工したパイプの斜視図を
示すもので、ａはビードが１個のもの、ｂは２個
のものである。第５図は」と補正する。Amendment October 25, 1993 The brief description of the drawing is amended as follows. On page 9, lines 15 to 17 of the specification, the statement ``Fig. 4 a and b are perspective views of a pipe bent by the roll mold of the present invention, and Fig. 5 is'' was replaced with ``Fig. These are perspective views of pipes bent using the roll type of the present invention, in which a shows one with one bead and b shows one with two beads.

Claims

[Scope of utility model registration request]

A roll mold for a pipe bender suitable for bending thin-walled pipes, in which a small groove 1f extending in the circumferential direction and having a papilla-like cross section is provided on the surface of the groove 1d which is in contact with the outer surface of the pipe 6 to be processed.