| 摘要 |
PURPOSE:To provide a mold capable of molding at a time a rod-like body having bores extending at various angles to each other from the surface toward the axis, by pressing arranged pin pieces to allow the tips of pins to project into recesses located in the centers of blocks. CONSTITUTION:When all of the blocks 2, 2 and pressing plates 4, 4' are made in close contact, out of ten arranged pin pieces 3, four positioned inside of both the blocks 2, 2' are directly pressed by the plate surfaces of the pressing plates 4, 4', four positioned outside thereof are pressed by sliding pieces 7 inserted in V- shaped recesses 10 in a close contact state, and two positioned in the lower surfaces of the blocks 2 are pressed by the inclined sections formed on the projections 15 of the block 2'. Accordingly, the tips of all of the pin 5... are projected into the recesses 6 formed in the centers of the blocks 2, 2'. According to the present arrangement, molding which heretofore has been impossible by two-part molds has become possible. |
