| 摘要 |
PURPOSE: A joint for connecting a connection pipe to a cooling hole of a mold is provided to conveniently and securely connect a connection pipe to a cooling hole by fastening a wrench bolt and to water-tightly seal a gap between the joint and the cooling hole. CONSTITUTION: A joint(1) for connecting a connection pipe to a cooling hole of a mold comprises a wrench bolt(20), a lifting member(30), a pressing ring(40), a washer(50), and an O-ring(60). When the wrench bolt is fastened, the lifting member is ascended, and a gap between the lifting member and a base(11) becomes narrow. The ascending of the pressing ring is limited by the washer. The O-ring is located at the stepped narrow part of the lifting member and is pressed by the pressing ring.
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