MANUFACTURING DEVICE OF CONNECTOR FOR TIRE CHAIN

Japanese Patent JP3701370

B2

PROBLEM TO BE SOLVED: To provide an automatic device which performs quantity production by a single device in a single process, in a connector, whose head part is formed in a key hole shape, between a side chain and a cross chain of a slip-preventing tire chain.
SOLUTION: Support arms 14 mounting right/left pressing dies 10 are first vertically pressed down, so as to bend a round bar A, horizontally mounted in an inner die 19, first in a reverse U shape, thererafter by a slope 13 of the pressing die 10 and inward putting rollers 12, downward advancing of the pressing die 10 is changed to an inner side, by its beak-shaped protruding end, a key hole-shaped head part is molded as shown in the drawing. Here, a flange of a flanged roller 21, which is a bending roller, plays a role of a means preventing a key hole-shaped leg part round bar from excessively being put aside like crossing. Accordingly, after ending the key hole shape molded as shown in the drawing, immediately by a cross pressing die 23 pressed in a right angle direction to a paper surface and bending rollers 21, 22, J-shaped bending of a leg part is performed, simultaneously with dropping down as a product connector to a required position.

Shozo Horiuchi
Fumio Nakazawa

JP3910296A

September 28, 2005

February 02, 1996

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Mitsuba Manufacturing Co., Ltd.

B60C27/06; (IPC1-7): B60C27/06

JP63034602U
JP48105202U
JP1072404U
JP7004107U
JP31007709Y1
JP46030644Y1

Takemichi Fukuda
Kenzo Fukuda
Shinichi Fukuda

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