Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Means joining flexible indefinite length or endless bodies...
Patent
1995-04-11
1996-11-05
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Means joining flexible indefinite length or endless bodies...
156157, 1563041, 156134, 156507, B65H 6906
Patent
active
055713718
ABSTRACT:
A sheet material butt-joining apparatus provides improved joining strength and accuracy between starting and finishing ends (S1, S2) of a sheet material S, by keeping the distance between these ends (S1, S2) of the sheet material (S) at a predetermined value by means of a control pin (63). A motor is continuously operated even after the starting and finishing ends (S3, S4) of the sheet material (S) are held by top and bottom joining pawls (48, 49, 36, 37). In this instance, a cam follower (95) moves in a slot (94) to temporarily stop transfer of a vertically moving force to a vertically movable base (26). On such occasion, the control pin (63) is lowered and retracted from an intermediate position between the starting and finishing ends (S1, S2) of the sheet material (S) to form a gap between these ends (S1, S2). The starting and finishing ends (S3, S4) held by the joining pawls are prevented from deformation or the like.
REFERENCES:
patent: 2487149 (1949-11-01), Leguillon
patent: 3130100 (1964-04-01), Hasselquist
patent: 4765862 (1988-08-01), Azuma
patent: 5403429 (1995-04-01), Minakawa et al.
Database WPI, Week 7747, Derwent Publications Ltd., London, GB, Abstract No. 77-84073.
Database WPI, Week 8439, Derwent Publications Ltd., London, GB, Abstract No. 84-241260.
Ball Michael W.
Bridgestone Corporation
Yao Sam Chuan
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