| 摘要 |
<p>A metal mold for molding a bush of double-layer structure capable of efficiently manufacturing the bush by facilitating the molding of the bush of double-layer structure, comprising a first cope (10) for outer layer formation, a second cope (20) for inner layer formation, and a drag (8) having a plurality of mold holes (81) and common to both copes combined with each other, wherein a groove (84) for a runner leading to the filling gates (83) of the mold holes to a cavity (C1) for outer layer rubber is formed in the upper surface of the drag (8), and a recessed part (29) capable of storing at least a spool portion (A1-2) of an outer layer rubber (A1) remaining on the drag (8) is provided in the lower surface of the second cope (20), whereby an inner layer rubber (A2) can be vulcanizingly formed by clampingly connecting the second cope (20) to the drag (8) while the spool portion (A1-2) and a runner portion (A1-1) produced by the formation of the outer layer rubber (A1) remain on the upper surface of the drag.</p> |
