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Patent Searching and Data


Title:
TUBE FOLDING METHOD
Document Type and Number:
Japanese Patent JP3185993
Kind Code:
B2
Abstract:

PURPOSE: To fold both ends of a tube automatically into a mold pipe without generating creases.
CONSTITUTION: The section of a flat tube 21 is formed into a half-round shape by a forming bar 25 and a press forming bed 26 and inserted into a mold pipe 31 just as it is. Then, one end of the tube 21 is gripped by a tube gripping section 34, and the forming bar 25 and the like only are moved backward. Then, both ends of the tube 21 are sucked and opened by vacumm pads 32a, 32b, 33a and 33b, and folded toward the outer peripheral face of the mold pipe 31 by pawls 40 of tube folding units 38 and 39.


Inventors:
Masakazu Kurihara
Application Number:
JP25830292A
Publication Date:
July 11, 2001
Filing Date:
September 28, 1992
Export Citation:
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Assignee:
Showa Electric Cable Co., Ltd.
International Classes:
B29C53/08; B29C57/00; (IPC1-7): B29C53/08; B29C57/00
Domestic Patent References:
JP60104314A