Patent ID: 6640405
Filing Date: 2003-11-04
Classification: B23P,B62D,Y10T

Abstract:
A ring installation jig for use in mounting an anti-slip-off ring for securely attaching a link coupling pin to links in a crawler belt of a vehicle,the jig comprising: an expansion guide member which has, at its front, a working face to be brought into contact with an end of the pin for positioning and has a ring expansion guide section on its outer periphery, to which a propulsive force is applied; an expansion claw fitted on the expansion guide member for expanding and supporting the anti-slip-off ring, by a contacting and sliding action of said expansion claw along said ring expansion guide section, and moving it to the end of the pin; an elastic body for applying a pressing force to the expansion claw; and a pusher for pushing the anti-slip-off ring which has been expanded by the expansion claw into an annular open space defined by the link and the pin.