To provide an economical fastening structure without causing a deterioration in working accuracy.
In the fastening structure, a hardened metal member 10 and a metal base material 12 are fastened by screwing of a bolt 14. A tapered through-hole 16 whose diameter is reduced toward the metal base material 12 side to which the metal member 10 is fastened is provided at a screwing position of the bolt 14 of the metal member 10, and a springy washer 18 is inserted into the through-hole 16. An insertion hole 20 through which the bolt 14 can be inserted is provided at the center of the springy washer 18, and the springy washer 18 has a slit provided along an axial direction so as to reach an outer surface from the insertion hole 20, and is in the shape of an inverted circular truncated cone. The springy washer 18 is inserted into the tapered through-hole 16, and the bolt 14 is screwed into a screw hole 24 provided in the metal base material 12 through the insertion hole 20.
HAMAMOTO HIROSHI
MATSUMORI SHINOBU
JPS63170232U | 1988-11-07 | |||
JPH10169011A | 1998-06-23 | |||
JPH0347293U | 1991-05-01 | |||
JP2007276028A | 2007-10-25 | |||
JPS58163705U | 1983-10-31 | |||
JPS615205U | 1986-01-13 | |||
JPS63170232U | 1988-11-07 | |||
JPH10169011A | 1998-06-23 | |||
JPH0347293U | 1991-05-01 | |||
JP2007276028A | 2007-10-25 | |||
JPS58163705U | 1983-10-31 |
Yoichi Yoshiura
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