Code changing structure applied to key coded lock
US12258785B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Jul 25, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B37/163
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A code changing structure for a key coded lock, including a lock base, a push rod, locking pieces, a knob, a linkage assembly, a position resetting assembly, and corresponding key springs, password keys, button springs and buttons. A press-rotating mechanism operable below a code changing height is provided between the buttons and key slots. When a correct password is entered, the knob rotate to a first angle or a second angle. When the knob rotates to the first angle, the key coded lock is in an unlocked state, the lock pieces move away from the knob and prevent the buttons to reach the code changing height. When the knob rotates to the second angle, the lock pieces move towards the knob and allow the buttons to be pressed down to the code changing height so as to drive the password keys to rotate to change the password.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.