| 摘要 |
<p>A mold for molding vulcanization according to this invention is provided with top and bottom forces (1), (2), a sector (3) surrounding the outer circumference between these forces (1), (2), and an actuator (4) adapted to be moved vertically relative to the sector (3) to expand and contract the sector (3) in the radial direction. The actuator (4) is divided into upper and lower actuator portions (4a), (4b). The sector (3) is also divided into upper and lower sector portions (3a), (3b). The upper and lower actuator portions (4a), (4b) are combined with each other so as to move up the lower actuator portion (4b) as well at a predetermined distance along with the upper actuator portion (4a) when the mold is opened. The mold has a connecting means (30) for separating the upper and lower actuators (4a), (4b) when the distance of upward movement of the lower actuator exceeds a predetermined level.</p> |
