| 主权项 |
1. A two-member connecting structure for connecting via a lock ring a first member, which is provided with a first lock groove in an outer periphery of the first member, and a second member, which includes a connection hole permitting insertion of the first member therethrough, the second member being provided with a second lock groove opened to an inner periphery of the connection hole, the lock ring being formed in a substantially C shape while having a circular section, and engaging with the first and second lock grooves, wherein
an outer diameter of the lock ring under a load-free condition is set equal to or larger than a diameter of a groove bottom surface of the second lock groove, a reduced-diameter guide hole portion forms part of the connection hole, and is adjacently disposed short of the second lock groove in an insertion direction of the first member into the connection hole, the reduced-diameter guide hole portion guiding the lock ring to a side of the second lock groove while reducing a diameter of the lock ring when the first member is inserted into the connection hole with the lock ring engaging with the first lock groove, and a depth from an inner peripheral surface of the reduced-diameter guide hole portion to the groove bottom surface of the second lock groove is set less than a radius of the circular section of the lock ring. |
