Band forming method

Details Band forming method Band forming method

1993-12-16

1995-08-29

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156132, 156135, 156398, 156401, 156403, 156417, B60C 1502

Patent

active

054456959

ABSTRACT:
A ring-like band with both ends in which beads are wrapped is formed in the following procedure: A forming drum 11 mounted with a band 1 is expanded up to an intermediate diameter, and right and left bead lock segments 65 are positioned with specified intervals. Then, right and left fingers 54 are positioned outside edge portions 1a in the expanding state. Thus, right and left beads 2 are located at specified positions, and the fingers 54 are contracted to reduce the diameters of the edge portions 1a. Subsequently, the bead lock segments are expanded for supporting the beads 2 together with the edge portions 1a from the inner side. Finally, the bead lock segments 65 are brought close to the forming drum side while the forming drum 11 is expanded to the maximum diameter, and the edge portions 1a are folded by the swelling of folding bladders, to thus wrap the beads 2.

REFERENCES:
patent: 3816218 (1974-06-01), Felten
patent: 3950212 (1976-04-01), Bullmann
patent: 4614562 (1986-09-01), Jones
patent: 4705589 (1987-11-01), Enders
patent: 5264068 (1993-11-01), Masuda
patent: 5273599 (1993-12-01), Adachi
patent: 5288352 (1994-02-01), Miyanaga et al.

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