Title:
【発明の名称】カーリング装置
Document Type and Number:
Japanese Patent JP2814294
Kind Code:
B2
Abstract:
A plurality of rolls are supported and freely shiftable on a rotating supporting shaft. The rolls have a V-groove with a circular arc at the bottom of the groove. The plurality of rolls are arranged on a swivel table so that the rotating supporting shaft corresponds to the radial direction of the swivel table. A component of force acting on the roll in the direction of the supporting shaft is alleviated by a shift of each roll in the direction of the supporting shaft. This is accomplished by rotating the swivel table with the bottom of a metal sheet tapered cylinder pushed down against the V-groove. Thus, curling on the lower end of the cylinder is accomplished without generating a bulge in the neighborhood of the lower end of the cylinder and without preforming.
More Like This:
Inventors:
Osamu Watanabe
Yoshiaki Nagao
Masaya Tanshin
Yoshiaki Nagao
Masaya Tanshin
Application Number:
JP13019690A
Publication Date:
October 22, 1998
Filing Date:
May 22, 1990
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
B21D19/12; B21D51/26; (IPC1-7): B21D19/12
Domestic Patent References:
| JP5999031U |
Attorney, Agent or Firm:
Matsumura Hiroshi