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Title: Tire building machine
Claims: What I claim is: 1. A tire building machine which includes in combination: rotatable shaft means, a tire building drum of variable diameter connected to said shaft means for rotation therewith, bead core applying means respectively arranged opposite each end face of said drum, each applying means including a bead core holder having two coaxially arranged, relatively slidable annular bodies one within the other surrounding said shaft means in radially spaced relationship thereto and axially movable to position a bead core against tire fabric on the end face of said drum, two inflatable bodies mounted on said shaft means and respectively arranged at opposite ends of said drum inside of said annular bodies for cooperation with the inner of the respective adjacent annular bodies, the annular bodies of each of said bead applying means being movable over the respective adjacent inflatable body, and each of said inflatable bodies being expandable so as to engage the respective adjacent inner annular body, two supporting rings mounted on said shaft means and respectively arranged at opposite ends of said tire building drum spaced therefrom between the latter and the respective adjacent inflatable body, each said supporting ring being variable in diameter to expand radially outwardly against said fabric and bead core, each of said supporting rings having a width corresponding approximately to the width of the bead cores to be applied, the guiding means spaced from said shaft means and slidably supporting each of said bead core applying means for guiding said bead core applying means in the axial direction of said shaft means, said bead core applying means additionally being adjustable transversely of said shaft means on said guiding means perpendicular to said shaft means independently in two directions perpendicular to each other. 2. A tire building machine which includes in combination: rotatable shaft means, a tire building drum of variable diameter connected to said shaft means for rotation therewith, bead core applying means respectively arranged opposite each end face of said drum, each applying means including a bead core holder having two coaxially arranged relatively slidable annular bodies one within the other surrounding said shaft means in radially spaced relationship thereto and axially movable to position a bead core against tire fabric on the end face of said drum, and guiding means spaced from said shaft means and slidably supporting each of said bead core applying means for guiding said bead core applying means in the axial direction of said shaft means, said bead core applying means additionally being adjustable transversely of said shaft means on said guiding means perpendicular to said shaft means independently in two directions perpendicular to each other, an inflatable body adjacent each end of said tire drum carried by said shaft means within said bead applying means and of slightly less diameter than said slidable inner and outer bodies to accommodate tire fabric between said inflatable body and the inner of said bodies, said inner body being slidable within said outer body outwardly of said bead core when said core is clamped against the tire drum, said inflatable body holding said fabric against said inner body when expanded, and expansible means carried by said shaft means within each bead core, and expansible radially to clamp said tire fabric against said bead core after said inflatable body has held it against said inner body. Other info: Inventors: Bullmann, Rolf (Hannover, DT) Application Number: 469461 Filing Date: 1974-05-13 Publication_date: 1976-04-13 Assignee: Continental Gummi-Werke Aktiengesellschaft (Hannover, DT) Primary Class(es): 156/398 156/131, 156/403 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Powell, William A. Assistant Examiner: Kittle, John E. Attorney: Becker; Walter |
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