Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1989-11-22
1992-05-05
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156518, 156530, B32B 3118
Patent
active
051103990
ABSTRACT:
The invention provides a heat-bonding blade and a heat-bonding apparatus capable of heat-bonding thermoplastic resin sheets, in particular non-woven cloth sheets of thermoplastic resin, with or without heat-cutting these sheets. A first-type heat-bonding blade intended for heat-cutting/bonding has pressing members provided on both sides of the blade. The distance between the lower end of each pressing member and the edge of the blade is determined such that the pressing members lightly press the sheets of the thermoplastic resins when the edge of the blade has pressed into the sheets.
A second-type heat-bonding blade intended only for heat-bonding the sheets is provided with a contact surface on the edge thereof. The contact surface is embossed so as to have a multiplicity of emboss projections. This type of heat-bonding blade may be formed by removing the pressing members from the blade of the first type and providing an embossed contact surface on the edge of the same. The heat-bonding apparatus of the invention employs one of these types of heat-bonding blade of the invention.
REFERENCES:
patent: 3513052 (1970-05-01), Ariyasu et al.
patent: 3574039 (1971-04-01), Fehr et al.
patent: 3735673 (1973-05-01), Sheehan et al.
patent: 3874976 (1975-04-01), MacFarland
patent: 4300977 (1981-11-01), Schulze
patent: 4352703 (1982-10-01), Perron
patent: 4743333 (1988-05-01), Forthmann
Hagihara Makoto
Yoshida Yoshinori
Mitsui Petrochemical Industries Ltd.
Weston Caleb
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