Band member forming apparatus
AssigneeSumitomo Rubber Industries, Ltd.
InventorMasayuki Osa
Life of this patent
Estimating the term…
Abstract
A band member forming apparatus including a rotary drum body having a rotary shaft, a drum driving device for rotating the rotary drum body about the rotary shaft, a plurality of moving members arranged in a peripheral direction of the rotary drum body, and radially and movably mounted to the rotary drum body, drum segments fixedly attached to the respective movable members for forming the outer periphery of the rotary drum, a continuous expansion and contraction device for simultaneously moving the movable members and drum segments in a radial directions of the rotary drum so as to expand and contract the diameter of the rotary drum, and a changer device for changing the continuous expansion and contraction device from an operation state to a suspension state and vice versa.
Claims7
A band member forming apparatus comprising:
- a drum shaft;
- a drum body integrally connected with the drum shaft;
- a rotary member coaxially provided on the drum shaft, the rotary member including a large bevel gear;
- driving means for rotating the rotary member;
- changer means provided between the drum shaft and the rotary member, and adapted for selectively setting the drum shaft in a stationary state of being stationary or in a rotational state of rotating together with the rotary member;
- and
- a plurality of drum segment devices carried on the drum body and arranged in a circumferential direction of the drum body, each said device including:
- a drum segment for constituting a material application drum together with the drum segments of the other said devices;
- a radially movable member carrying the drum segment, the radially movable member including a screw rod;
- and
- a mechanical converter operationally associated with the rotary member, the mechanical converter including a small bevel gear rotatably mounted on the drum body, and meshed with the large bevel gear, and formed with a threaded hole in a center thereof, the screw rod extending through the threaded hole,
- the mechanical converter converting the rotation of the rotary member into the radial movement of the radially movable member when the drum shaft is in the stationary state while not converting the rotation of the rotary member into the radial movement of the radially movable member when the drum shaft is in the rotational state.
Dependencies are inferred from the claim text.