Laterally stabilized inflatable bead turn-up bladder for tire bu

Details Laterally stabilized inflatable bead turn-up bladder for tire bu Laterally stabilized inflatable bead turn-up bladder for tire bu

1990-12-24

1992-08-25

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156414, B29D 3026

Patent

active

051415887

ABSTRACT:
An improved inflatable bead turn-up bladder for a tire building drum which reduces or elminates cord length variation in a reinforced tire carcass by stabilizing the bladder in the area utilized for lifting the reinforced cord fabric into contact with the tire bead on the tire building drum. The elastomeric inflatable bladder is formed with an integral annular rib which is seated in complementary shaped grooves or slots formed in the radially movable segments of the tire drum bead locks. When the bead lock segments are actuated, the adjacent portion of the bladder and overlying tire carcass is prevented from axial movement by the engagement of the bladder rib in the bead lock segment groove. A stretch zone is provided in the bladder between the rib and one end of the bladder by eliminating reinforcing material from that area of the bladder.

REFERENCES:
patent: 3101289 (1963-08-01), Giletta et al.
patent: 3418192 (1968-12-01), Nadler
patent: 3989564 (1976-11-01), Touchette et al.
patent: 4081310 (1978-03-01), Shichman et al.
patent: 4226656 (1980-10-01), Appleby et al.
patent: 4239579 (1980-12-01), Felten et al.
patent: 4450025 (1984-05-01), Henley
patent: 4498948 (1985-02-01), Brown et al.
patent: 4830693 (1989-05-01), Okafuji et al.

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