Patent ID: 6612663
Filing Date: 2003-09-02
Classification: B62D,F16B

Abstract:
A fastening structure of link and pin of a vehicle crawler belt, wherein an annular space (15) being formed between a circumferential edge of an opening of a pin insertion hole (5) of a link (2) and an outer end portion of a pin (1) to be inserted in the pin insertion hole (5), a retaining ring (3) being disposed in the space (15) whereby preventing relative, disengaging movement of the pin (1) toward a side away from the opening; characterized in that one of the circumferential edge of the opening of the pin insertion hole (5) of the link (2) and the outer end portion of the pin (1) is formed with a tapered pressure receiving surface (8) having a diameter gradually decreasing in an axially inward direction, the other being formed with a pressing portion (7), and the retaining ring (3) being formed with a friction surface (9) to be press-contacted to the pressure receiving surface (8) by a force from the pressing portion (7) upon development of the relative movement in the disengaging direction.