Mechanism for supporting and retaining the beads when building p

Details Mechanism for supporting and retaining the beads when building p Mechanism for supporting and retaining the beads when building p

1991-07-18

1993-07-06

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156398, 156415, B29D 3026

Patent

active

052250288

ABSTRACT:
Mechanism for supporting and retaining the beads when building at least a portion of a pneumatic tire on a building drum, said mechanism comprising radially expandable and retractable means for laterally supporting at least a part of each bead, wherein a large number of rocker arms is arranged in a ring shape about the center line of the building drum, and means serve to shift and swivel all of these rocker arms simultaneously to an expanded position and to retract them again, said swivelling action of each rocker arm being performed in an imaginary plane extending radially through the center line of the drum and said shifting action including a component directed along the center line of the building drum.

REFERENCES:
patent: 3684621 (1972-08-01), Frazier et al.
patent: 3767509 (1973-10-01), Gazuit
patent: 3833445 (1974-09-01), Mallory et al.
patent: 4149927 (1979-04-01), Lauer, Jr.

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