Method and apparatus for producing tire bead cores

Details Method and apparatus for producing tire bead cores Method and apparatus for producing tire bead cores

2006-05-23

2006-05-23

Knable, Geoffrey L. (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S422000

Reexamination Certificate

active

07048820

ABSTRACT:
A method and an apparatus for producing tire bead cores, in which a bead wire extending tangentially relative to a bead core winding drum is guided by a guide means that extends radially relative to the winding drum, and the guide means is moved toward clamp jaws of a chuck to cause a translation movement of the bead wire to a position between the clamp jaws, for clamping a leading end of the bead wire by the chuck. The winding drum is rotated together with the chuck so that the bead wire with its leading end clamped by the chuck is helically wound in a circumferential groove of the winding drum as a plurality of layers, thereby forming a bead core having a predetermined cross-section. The segments are then synchronously moved radially inwards, so as to reduce an outer diameter of the winding drum to a value smaller than the inner diameter of the bead core.

REFERENCES:
patent: 2979109 (1961-04-01), Dieckmann
patent: 3475255 (1969-10-01), Lang
patent: 4405395 (1983-09-01), Wright
patent: 5281289 (1994-01-01), Debroche et al.
patent: 5882458 (1999-03-01), Kolb et al.
patent: WO 01/64428 (2001-09-01), None
English abstract for JP 10166473, Jun. 23, 1998.
English abstract for JP 09267410, Oct. 14, 1997.
English abstract for JP 06330485, Nov. 29, 1994.
English abstract for JP 11207832, Aug. 3, 1999.
English abstract for JP 11105156, Apr. 20, 1999.

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