RIPPER CHIP ASSEMBLY, RIPPER SHANK PROTECTIVE DEVICE ASSEMBLY, AND RIPPER SHANK ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide an improved rotary lock structure for locking a ripper chip on a ripper shank.SOLUTION: A lock structure includes a lock part having a C-shaped sleeve and a C-shaped skirt part, the C-shaped sleeve having a truncated conical inner surface and at least one detent projection on the truncated conical inner surface, and the C-shaped skirt part having a truncated conical outer surface and at least one detent recess on the truncated conical outer surface. The truncated conical outer surface of the lock part slides along the truncated conical inner surface of the C-shaped sleeve. Furthermore, the at least one detent projection is engaged with the at least one detent recess, for holding the lock part in at least one of a locked position and an unlocked position.SELECTED DRAWING: Figure 14