ATTACHMENT FIXING/REMOVING DEVICE

摘要

An attachment fixing/removing device in which the position of an attachment with respect to a supporting member when the attachment is coupled with the supporting member through the fixing/removing device is kept the same as when the fixing/removing device is not used. The attachment fixing/removing device comprises a coupling pin (6) provided in the attachment (4), a coupling hook (9) provided in the supporting member (8) and engaging with the coupling pin (6) or disengaging therefrom freely, and a grasping hook (12) provided movably in the supporting member (8) in order to block uncoupling of the coupling pin (6) from the coupling hook (9), wherein the attachment is fixed to the same position as when the fixing/removing device is not used.