Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1990-09-12
1991-12-17
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156134, 156502, 1563042, 156447, B29D 3024, G03D 1504
Patent
active
050732269
ABSTRACT:
An apparatus for forming a cylindrical member includes a forming drum having a cylindrical unit formed with a slit extending in an axial direction of the cylindrical unit and around which a belt-shaped member is wound wherein a slight clearance between both ends of the belt-shaped member are aligned with the slit of the cylindrical unit. The cylindrical unit of the forming drum is composed of a plurality of arcuate segments radially movable and having suction devices on their outer circumferences for holding the belt-shaped member by suction. The cylindrical unit includes clearance regulating members capable of penetrating into tghe clearance of the belt-shaped member, a first joining unit arranged in the forming drum aligned with the slit, and a second joining unit arranged on an outer side of the forming drum and movable toward and away from the first joining unit. When the first and second joining units embracing the belt-shaped member are pushed toward each other, the both ends of the belt-shaped member wound around the forming drum are pulled together and butt joined.
REFERENCES:
patent: 4328066 (1982-05-01), Kiuchi et al.
patent: 4765862 (1988-08-01), Azuma
Suzuki Shoujyu
Takasuga Yutaka
Ball Michael W.
Bridgestone Corporation
Lorin Francis J.
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