Patent ID: 6102640
Filing Date: 2000-08-15
Classification: F15B,F16B,Y10S

Abstract:
A device for preventing a bolt from slipping off, comprising a member, to be fixed to a stationary member having a threaded bore, combined with a bolt and an annular elastic member for preventing said bolt from slipping off said member, said member to be fixed formed with a bolt shank bore, said device being adapted to prevent said bolt from slipping out of said shank bore when said bolt is unfastened, said device comprising:an annular recess, which is formed completely in an intermediate part of a shank bore-defining inner periphery of said member to be fixed, said annular recess having said annular elastic member fitted therein, said annular elastic member having elasticity in a direction radially thereof and said annular elastic member having an inside diameter smaller than an outside diameter of a shank of said bolt.