Patent ID: 9624960
Date: 2017-04-18
CPC Classifications: F02M,F16B,Y02T,Y10T

Claim:
1. A two-member connecting structure comprising: a first member, which is provided with a first lock groove in an outer periphery thereof; 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, and a 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 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 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, a depth of the second lock groove, from an inner peripheral surface of the guide hole portion to the groove bottom surface is set less than a radius of the circular section of the lock ring, and in a state where the first member and the second member, connected together via the lock ring, are acted on by external force in a direction of separating the first member and the second member from each other,