Double nut and bolt nut system
The double nut system with concentric and eccentric designs, combined with washers and cotter pins, enhances locking performance under harsh conditions, addressing the issue of loosening in conventional bolt-nut systems.
JP3249489UActive Publication Date: 2024-12-13宫崎 保
Patent Information
- Application Number
- JP2024003516U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-09-30
Smart Images
Figure 0003249489000001_ABST
Abstract
To provide a double nut that provides a strong anti-loosening effect for a long period of time. [Solution] A double nut 10 with an anti-loosening effect is used in combination with a bolt 40, comprising: a first nut 20 having a first nut base 22 and a shank portion 24 protruding from the first nut base, with a first screw hole formed in the first nut base and the shank portion; and a second nut 30 having a second nut base 32 and a socket portion 34 whose inner circumferential surface has a shape corresponding to the outer circumferential surface of the shank portion, with a second screw hole 36 formed in the second nut base, wherein the central axis of the shank portion based on the outer circumferential surface of the shank portion and the central axis of the socket portion based on the inner circumferential surface of the socket portion are formed so as to be concentric when the first nut and second nut are combined, the central axis of the second screw hole is formed concentric with the central axis of the socket portion, and the central axis of the first screw hole is formed eccentrically from the central axis of the shank portion.
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Citation Information
Patent Citations
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