Title:
ダブルナット機構、並びにこれを備えた締結ネジ機構および金属製アンカー
Document Type and Number:
Japanese Patent JP7337376
Kind Code:
B2
Abstract:
To provide a double nut mechanism etc. that can obtain an extremely great locking force without decreasing an axial force of a bolt member.SOLUTION: A double nut mechanism comprises: an inner nut member 14 screwed to a bolt shaft part 17 of a fastening bolt 11; and an outer nut part 15 located on the side of a fastened object C with respect to the inner nut member 14, and screwed to the inner nut member 14. The inner nut member 14 comprises: an inner nut female thread part 21 formed in an inner peripheral surface, and screwed to the bolt shaft part 17; an inner nut tool hooking part 22 formed in an outer peripheral surface; and an inner nut male thread part 23 continuous with the inner nut tool hooking part 22. The outer nut member 15 comprises: an outer nut female thread part 31 formed in an inner peripheral surface, and screwed to the inner nut male thread part 23; and an outer nut tool hooking part 33 formed in an outer peripheral surface.SELECTED DRAWING: Figure 1
Inventors:
Shogo Fujita
Application Number:
JP2019185412A
Publication Date:
September 04, 2023
Filing Date:
October 08, 2019
Export Citation:
Assignee:
fs technical corporation
International Classes:
F16B39/12; E04B1/41; F16B35/04; F16B39/30
Domestic Patent References:
| JP2003301829A | ||||
| JP2000120644A | ||||
| JP3144051U |
Attorney, Agent or Firm:
Patent Attorney Corporation Shinryo International Patent Office
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