Locking device
US10876322B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B2027/0025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The locking device includes a key having a cylindrical shaft in which a guide groove is formed in the axial direction, and a cylinder lock which includes an outer cylinder, an inner cylinder, a locking bar and a tumbler, the inner cylinder has an inner cylinder main body rotatably accommodated in the outer cylinder, a rod fixed to the inner cylinder main body, and a key insertion slot, the locking bar is interposed between the inner cylinder main body and the outer cylinder and prevents the rotation of the inner cylinder by engaging and disengagingly locking the inner cylinder main body and the outer cylinder, and the tumbler has a guide convex portion engageably and detachably engaged with the key groove, and an inner concave portion rotatably received in the inner cylinder and dropping the locking bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.