IP Library Granted Patent US 12,738,112
Granted Patent B2
US 12,738,112 · App. 18/925,241 · Granted Sep 15, 2026

Mechanisms, assemblies and electronic locking system

Inventors: Anders Cöster (Stockholm, SE); Daniel Skarp (Enebyberg, SE); Robin McGougan (Bollnäs, SE); Henrik Svensson (Bromma, SE); Bernt Arbegard (Altura, PT)
Assignee: ASSA ABLOY AB
G07C9/00174H02K7/02H02K7/1853G07C2009/00388G07C2009/00634
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Quick Facts
Patent No.
US 12,738,112
App. No.
18/925,241
Granted
Sep 15, 2026
Kind
B2
Abstract

Release mechanism for an electronic locking system, wherein the release mechanism is configured such that an input member and an output member are locked against relative rotation and can rotate together within a locking ring opening when a locking member is located in an input member recess and in an output member recess, and such that the output member is released to rotate relative to the input member when the locking member is located in the output member recess and in a locking ring recess. A freewheel mechanism and assemblies for an electronic locking system are also provided.

Claims (33)

1 . An assembly for an electronic locking system, the assembly comprising:

a shaft arranged to rotate about a rotational axis from a starting position;

a spring arranged to store mechanical energy from rotational displacement of the shaft from the starting position; and

a release mechanism arranged to release the mechanical energy stored in the spring to an output member at a specific angular position of the shaft;

wherein the spring is a torsion spring encircling the shaft.

2 . The assembly of claim 1 , wherein the release mechanism comprises:

a locking member;

an input member arranged to rotate about the rotational axis, the input member having an input member recess, for partly accommodating the locking member, and an input member opening;

an output member arranged in the input member opening and arranged to rotate about the rotational axis, the output member having an output member recess for partly accommodating the locking member; and

a locking ring having a locking ring opening, for accommodating the input member, and a locking ring recess for partly accommodating the locking member;

wherein the release mechanism is configured such that the input member and the output member are locked against relative rotation and can rotate together within the locking ring opening when the locking member is located in the input member recess and in the output member recess, and such that the output member is released to rotate relative to the input member when the locking member is located in the output member recess and in the locking ring recess.

3 . The assembly of claim 2 , wherein the input member, the output member, and the locking ring are hollow, and wherein the shaft passes therethrough.

4 . The assembly of claim 2 , wherein the shaft is fixedly connected to, or integrally formed with, the input member.

5 . The assembly of claim 2 , further comprising an electric generator having a rotor.

6 . The assembly of claim 5 , wherein a rotation of the output member is transmitted to a rotation of the rotor to generate electric energy.

7 . The assembly of claim 6 , wherein the spring passes through the electric generator.

8 . The assembly of claim 1 , further comprising an electric generator having a rotor.

9 . The assembly of claim 8 , wherein the spring passes through the electric generator.

10 . The assembly of claim 1 , wherein the spring is preloaded when the shaft is in the starting position.

11 . The assembly of claim 1 , wherein the spring is a helical torsion spring.

12 . The assembly of claim 1 , wherein the spring is coaxial with the shaft.

13 . The assembly of claim 1 , further comprising a stationary structure, wherein the shaft extends through the stationary structure along the rotational axis such that a handle can be fixed to the shaft at each side of the stationary structure.

14 . An electronic locking system comprising the assembly of claim 1 .

15 . The electronic locking system of claim 14 , wherein the release mechanism of the assembly comprises:

a locking member;

an input member arranged to rotate about the rotational axis, the input member having an input member recess, for partly accommodating the locking member, and an input member opening;

an output member arranged in the input member opening and arranged to rotate about the rotational axis, the output member having an output member recess for partly accommodating the locking member; and

a locking ring having a locking ring opening, for accommodating the input member, and a locking ring recess for partly accommodating the locking member;

wherein the release mechanism is configured such that the input member and the output member are locked against relative rotation and can rotate together within the locking ring opening when the locking member is located in the input member recess and in the output member recess, and such that the output member is released to rotate relative to the input member when the locking member is located in the output member recess and in the locking ring recess.

16 . The electronic locking system of claim 15 , wherein the input member, the output member, and the locking ring are hollow, and wherein the shaft passes therethrough.

17 . The electronic locking system of claim 16 , further comprising an electric generator having a rotor.

18 . The electronic locking system of claim 17 , wherein a rotation of the output member is transmitted to a rotation of the rotor to generate electric energy.

19 . The electronic locking system of claim 18 , further comprising a stationary structure, wherein the shaft extends through the stationary structure along the rotational axis such that a handle can be fixed to the shaft at each side of the stationary structure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2024
From: CÖSTER, ANDERS; SKARP, DANIEL; MCGOUGAN, ROBIN; SVENSSON, HENRIK; ARBEGARD, BERNT
To: ASSA ABLOY AB
Reel/Frame 069000/0687 →
Priority Claims (1)
EP 16197535 · Nov 7, 2016 · regional
Continuity (4)
Continuation 18465400 · Sep 12, 2023
Continuation 17978412 · Nov 1, 2022
Continuation 16347464 · Nov 1, 2017
Related Publication 20250046135A1 · Feb 6, 2025
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