Apparatus for building green tires
AssigneeBridgestone Tire Company Limited
InventorToshinori Yabe
Life of this patent
Estimating the term…
Abstract
Method and apparatus for building green tires, wherein stitching means is mounted on a carrier which transfers a tire component to and around the circumference of another tire component laid on a tire building drum. The carrier in the form of a ring shape is adapted to be axially movable toward and away from the circumference of the tire building drum and has holding means for releasably holding a tire component and a green tire. The stitching means stitches the tire components together on the tire building drum while the carrier is surrounding the circumference of the tire building drum.
Claims3
An apparatus for building green tires, comprising:
- a tire building drum rotatably mounted on a housing and driven for rotation by a motor accommodated in said housing;
- a ring-shaped frame movable toward and away from an operating position where said ring-shaped frame surrounds the circumference of said tire building drum;
- tire component holding means including a plurality of tire component holders radially movably mounted on said ring-shaped frame at uniform space from each other for releasably holding a breaker-tread assembly during a green tire producing stage and a green tire after said green tire producing stage;
- and
- stitching means including a plurality of rotatable stitching rollers mounted on said ring-shaped frame in alternate relation with said tire component holders and movable toward and away from said tire building drum for stitching said breaker-tread assembly into tight contact with said carcass on said tire building drum while said ring-shaped frame is in said operating position.
Dependencies are inferred from the claim text.