Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means
Patent
1990-08-14
1992-04-28
Knable, Geoffrey L.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With bending, folding, winding, or wrapping means
156422, B29D 3050
Patent
active
051085380
ABSTRACT:
A method and an apparatus for applying the belt-shaped bead filler on the bead core with apex. The method comprises the the step of: rotating a bead core with an apex together with a belt-shaped bead filler; mounting the bead filler on the internal circumferential surface in an approximately cylindrical shape so as to form an overlapping portion; joining at least a part of the overlapping portion; folding up the cylindrical bead filler on both sides of apex and bead core and press-fitting so as to unify them. The apparatus comprises bead supporting means for supporting rotatably abead core with an apex, bead filler guide means having a movable table to mount a starting edge of the bead filler against the internal circumferential surface of the bead core, bead filler cutting means for cutting the bead filler, bead rotating means for rotating the bead core with the bead filler, bead filler joining means for joining at least a part of overlapping portions, bead filler folding-up means for folding up the bead filler and bead filler press-fitting means for adhering the bead filler to the both side faces of the apex and bead core. Thereby, since the belt-type bead filler is folded up after being formed in the shape of cylindrical and the overlapping portion being jointed on both sides of the bead core, it hence becomes possible to enhance the quality of tire by preventing the formation of staggered joint and wrinkles.
REFERENCES:
patent: 1476807 (1923-12-01), Evans et al.
patent: 1553514 (1925-09-01), Denmire
patent: 1890952 (1932-12-01), Shively
patent: 1944768 (1934-01-01), Stevens
patent: 3185607 (1965-05-01), Nebout
patent: 3962020 (1976-06-01), Yonekawa et al.
patent: 4196306 (1980-04-01), Allen et al.
Itou Susumu
Kokubu Satoru
Satou Kazuo
Suga Susumu
Knable Geoffrey L.
Sumitomo Rubber Industries Ltd.
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