Device for the connection of overlapping portion of a thermoplas

Details Device for the connection of overlapping portion of a thermoplas Device for the connection of overlapping portion of a thermoplas

1991-05-28

1992-08-25

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Means joining flexible indefinite length or endless bodies...

156580, 156581, 156 735, 100 33PB, B29C 6506

Patent

active

051415917

ABSTRACT:
For connecting two band portions (11a, 11b) by friction welding, one band portion (11a) is pressed against an abutment (20) by a clamping jaw (24), and the other band portion (11b) is pressed against the abutment (20) by another clamping jaw (25). An oscillating jaw (26) is arranged between the clamping jaws for performing reciprocating movements transversely to the band (11) and thus welding the overlapping band portions (11a, 11b) to each other by friction welding. For preventing shear stresses between the oscillating jaw (26) and that clamping jaw (25) which holds the band portion (11b) entrained by the oscillating jaw, this clamping jaw (25) is driven in synchronism with the oscillating jaw (26) and with the same amplitude as the oscillating jaw (26). Facing the clamping jaw (25), there is arranged a smooth support face (23) for allowing sliding movement of the band (11) thereon.

REFERENCES:
patent: 3442203 (1969-05-01), Kobiella
patent: 3442734 (1969-05-01), Ericsson
patent: 3873387 (1975-03-01), Schoening
patent: 4527379 (1985-07-01), Bartzick et al.
patent: 4776905 (1988-10-01), Cheung et al.
patent: 4952271 (1990-08-01), Cheung et al.
Examiner's Report to the Comptroller dated Jul. 11, 1991.

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