F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 41/00 (2006.01) F15B 13/00 (2006.01)
Patent
CA 2236990
An annular recess is formed in an inner periphery defining a bolt shank bore and has fitted therein an annular elastic member having elasticity radially thereof and having an inside diameter smaller than the outside diameter of the shank of a bolt. The shank bore has at an intermediate part thereof a stepped portion so as to give an increased diameter to a bore portion from the intermediate part to one end of the bore, and a hollow cylindrical member for preventing the elastic member from slipping out is inserted in the shank bore from the bore end so as to form a clearance between the stepped portion and the preventing member, whereby the annular recess is formed.
Kojima Tetsuya
Morokoshi Hiroshi
Shinohara Tsutomu
Yamaji Michio
Yokoyama Kosuke
Fetherstonhaugh & Co.
Fujikin Incorporated
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