3644162 is referenced by 21 patents and cites 1 patents.

A tire-building drum of the collapsible type having a plurality of segments which, in the expanded condition of the drum, collectively form a tire-building surface. Radial movement of the segments between the expanded and collapsed condition of the drum is controlled by two sets of links one of which set has a through center toggle action as the segments associated therewith move into or out of expanded condition. The segments are guided in their radial movement by pistons mounted on the segments and received in cylinders which are fixed relative to the drum shaft. In the expanded condition of the drum, the links are contained within the pistons to provide a compact structure.The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawing and the following detailed description.

Tire-building drum
Application Number
Publication Number
Application Date
July 6, 1970
Publication Date
February 22, 1972
Riggs Robert S
Folden Denver C
Appleby Paul E
The Goodyear Tire & Rubber Company
B29h 17/16
B29D 30/24
B29D 30/20
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