Tightening structure for locking and nut and washer for the tightening structure
First Claim
1. A tightening structure for locking, comprising a nut, a bolt, and a washer with a hole through which an axis of said bolt passes, wherein, a recessed part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed in said nut on an inner washer side, a projected part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed on said washer on an inner nut side, and said recessed part of said nut is fitted to said projected part of said washer, and said hole in said washer is positioned on the inner side of said projected part and the center position of said hole is positioned eccentric to the center position of said projected part of said washer.
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Accused Products
Abstract
A tightening structure for locking, comprising a nut, a bolt, and a hole for passing the bolt therethrough, wherein, to more firm the locking, a recessed part symmetrical with respect to an axis and formed in a generally trapezoidal shape in cross section is formed in the nut on an inner washer side, a projected part symmetrical with respect to the axis and formed in a generally trapezoidal shape in cross section is formed on the washer on an inner nut side, and the recessed part of the nut is fitted to the projected part of the washer, and a hole in the washer is positioned on the inner side of the projected part and the center position of the hole is positioned eccentric to the center position of the projected part of the washer.
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Citations
21 Claims
- 1. A tightening structure for locking, comprising a nut, a bolt, and a washer with a hole through which an axis of said bolt passes, wherein, a recessed part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed in said nut on an inner washer side, a projected part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed on said washer on an inner nut side, and said recessed part of said nut is fitted to said projected part of said washer, and said hole in said washer is positioned on the inner side of said projected part and the center position of said hole is positioned eccentric to the center position of said projected part of said washer.
- 2. A nut for a tightening structure for locking, comprising a nut, a bolt, and a washer with a hole through which an axis of said bolt passes, wherein, a recessed part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed in said nut on an inner washer side.
- 3. A washer for a tightening structure for locking comprising a nut, a bolt, and a washer with a hole through which an axis of said bolt passes, wherein, a projeted part symmetrical with respect to said axis and formed in a generally trapezoidal shape in cross section is formed on said washer on an inner nut side, and said hole in said washer is positioned on the inner side of said projected part and the center position of said hole is positioned eccentric to the center position of said projected part of said washer.
Specification