| 摘要 |
Even if the coupling surface of an arm side attachment (3) and a tool side attachment (5) is directed in a direction other than the horizontal direction, the tool side attachment can be automatically separated and detached from the arm side attachment. When exchanging a tool, the worker does not have to forcibly pull out and detach a tool side attachment from an arm side attachment, a tool can be exchanged automatically, and the exchange work can be performed easily in a short period of time. When the cam member (17) is shifted from the unlocking position to the locking position, locking balls (13) which slide on locking inclined tapered surfaces (17a) to be shifted to the outside along the radius direction are engaged with engaging inclined tapered surface (23a) so as to mutually couple an arm side attachment (3) and a tool side attachment (5). When the cam member (17) is shifted from the locking position to the unlocking position, the engagement of the locking balls (13) with respect to the engaging inclined tapered surfaces (23a) is released, and unlocking balls (15) which slide on thrusting inclined tapered surfaces (17b) to be shifted to the outside along the radius direction slide on the separating inclined tapered surfaces (23b) to enable to thrust the tool side attachment (5) from the arm side attachment (3). |
