Mandrel for fabricating an air spring

Details Mandrel for fabricating an air spring Mandrel for fabricating an air spring

B - Operations, Transporting

23

B

154/18

B23B 31/40 (2006.01) B29D 30/32 (2006.01)

Patent

CA 1096285

MANDREL FOR FABRICATING AN AIR SPRING Abstract of the Disclosure Two embodiments of a mandrel for fabricating an air spring are disclosed. Each has a fixed diameter cylin- drical portion and a portion variable in diameter to provide an extension of the cylindrical surface expand- able to conic form. An array of fingers are pivotally secured to swing in radial planes to provide the variable diameter portions and are actuated by inflatable sleeves. The fingers are notched to provide a locating groove for the wire ring at the end of the air spring. Ply endings are folded about the wire ring by a second inflatable sleeve or bladder.

282917

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