Ultrasonic welding method for soft elastic foam body

Details Ultrasonic welding method for soft elastic foam body Ultrasonic welding method for soft elastic foam body

1987-09-29

1988-09-13

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 78, 156312, 1565801, 264 23, B29C 6508, B32B 3120

Patent

active

047707305

ABSTRACT:
An ultrasonic welding method, in which a covering member is welded to a soft elastic foam body by means of ultrasound. There is employed an ultrasonic vibration horn having a great welding area, and such horn is pressed against a lamination of the covering member and soft elastic foam body at a predetermined or maximum degree of pressure, after which the pressure is reduced and under the reduced pressure, an ultrasonic vibration is applied to the lamination. Thereafter, the horn is pressed once again against the lamination at the same predetermined or maximum degree of pressure, whereby the covering member is welded to the soft elastic foam body.

REFERENCES:
patent: 3170832 (1965-02-01), Wilson et al.
patent: 3483073 (1969-12-01), Pounder
patent: 4237181 (1980-12-01), Tanabe et al.
patent: 4393116 (1983-07-01), Taylor
patent: 4519862 (1985-05-01), Urai et al.
patent: 4561917 (1985-12-01), Urai

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