Invention Grant
- Patent Title: Electronic door locks having bi-directional overruning clutches and methods of using the same
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Application No.: US17968181Application Date: 2022-10-18
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Publication No.: US11920376B2Publication Date: 2024-03-05
- Inventor: Hao Min , Xinwei Jiao , Bo Huang
- Applicant: NANJING EASTHOUSE ELECTRICAL CO., LTD.
- Applicant Address: CN Nanjing
- Assignee: NANJING EASTHOUSE ELECTRICAL CO., LTD.
- Current Assignee: NANJING EASTHOUSE ELECTRICAL CO., LTD.
- Current Assignee Address: CN Nanjing
- Agency: MM IP SERVICES LLC
- Agent Ming Jiang
- The original application number of the division: US16495153
- Main IPC: E05B47/00
- IPC: E05B47/00 ; F16D41/066 ; F16D41/08

Abstract:
The present disclosure relates to a bi-directional overrunning clutch, electronic door locks having bi-directional overrunning clutches, and methods of using the same. In certain embodiments, the electronic door lock includes a first locking mechanism for driving an inner wheel through a first torque to rotate a rotatable shaft to operate a locking device on a door by a user from outside, a second locking mechanism for driving inner wheel through the first torque to operate the locking device from an inside, a third locking mechanism for driving an outer wheel rotatable coaxially around the rotatable shaft through a second torque to operate the locking device electronically, and the bi-directional overrunning clutch. When outer wheel rotates at second torque, inner wheel and rotatable shaft rotate along with outer wheel, and when inner wheel rotates at first torque, outer wheel does not rotate along with inner wheel and rotatable shaft.
Public/Granted literature
- US20230042077A1 ELECTRONIC DOOR LOCKS HAVING BI-DIRECTIONAL OVERRUNING CLUTCHES AND METHODS OF USING THE SAME Public/Granted day:2023-02-09
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