To provide a connection structure capable of reducing force required for inserting and detaching a pin while securely fixing the movement in an axial direction of the pin and improving work efficiency relating to connection.
A plurality of components 12 and 13 are connected to each other by inserting a pin 14 to holes 20, 21 and 22 provided on the plurality of components 12 and 13, respectively. To the hole 20 of one of the plurality of components 12 and 13, a locking ring 15 for locking the movement in the axial direction of the pin 14 is inserted. On the outer circumferential surface of the pin 14, a small outer diameter part 30 to be engaged with the locking ring 15 is formed. The locking ring 15 is provided with a plurality of cylindrical parts 31 and 32 arranged separately from each other in the axial direction and having the pin 14 inserted in their inside, and engaging parts 33 and 34 arranged between the plurality of cylindrical parts 31 and 32 and engaged with the small outer diameter part 30 of the pin 14. The engaging parts 33 and 34 are formed so as to be elastically deformed corresponding to the change of the outer diameter of the pin 14 and separately arranged in a circumferential direction.
KONTA KK
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama