| 摘要 |
Attaching means for releasably attaching two excavator tool parts, one tool part having a nose portion and the other having a socket for receiving that nose portion. The attaching means including at least one pair of angularly disposed side locking surfaces formed on the nose portion, and a complementary pair of such surfaces formed in the socket, which frictionally engage to hold the two tool parts in assembly. At least one side surface of at least one of the tool parts being contoured to provide restraining means such as to substantially prevent relative lateral movement between the nose portion and the socket when the tool parts are assembled.
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