Title:
円筒状の中空体に、頸部の付けられた、縁曲げされた区分を形成する方法及び該方法を実施する装置
Document Type and Number:
Japanese Patent JP3779997
Kind Code:
B2
Abstract:
A method and an apparatus for forming circumferentially extending necked and flanged parts at an end of a bilaterally open hollow cylindrical body. First and second axially aligned shafts carry axially displaceable first and second inner tools, respectively. Each inner tool has a circumferential body-shaping and a circumferential body-supporting surface. In a first axial position of the two inner tools the shaping surfaces together define a circumferential shaping groove situated inside the hollow body, and the body-supporting surfaces support the hollow body. In a second axial position the two inner tools are at a greater axial distance from one another than in the first position to allow introduction of a hollow body therebetween. A third shaft, carrying an outer tool having a circumferential shaping surface, extends parallel to the first and second shafts. A positioning arrangement is provided for aligning the circumferential shaping surface of the outer tool with the circumferential shaping groove and for radially moving the outer tool towards the two inner tools such that a circumferential portion of the hollow body is deformed and forced into the shaping groove causing the two inner tools to axially spread apart from one another.
Inventors:
Yang Kruger
Halal schmidt
Walter Somer
Halal schmidt
Walter Somer
Application Number:
JP53128296A
Publication Date:
May 31, 2006
Filing Date:
April 26, 1996
Export Citation:
Assignee:
SEG Kantech Gezel Shaft Mitt Beschlenktel Haftung Und Company Comandito Gezel Shaft
International Classes:
B21D51/26; B21D17/04
Domestic Patent References:
| JP49020713B1 | ||||
| JP38024290B1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard