Lock Actuator Layout With Fixed Credential Receiver Orientation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing lock devices with digital cylinders face orientation issues with credential receivers, leading to longer authorization times or read failures, and lack a consistent user experience.

Innovation Solution

An actuating device with a stationary credential receiver arranged radially inside the actuating element, featuring a transfer device that switches between enabled and disabled states based on credential input, allowing for a compact design and consistent user interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the credential receiver is positioned on the rotating knob, then the lock device can be compact, but the credential receiver orientation becomes inconsistent during rotation

Engineering Contradiction:
Improvecompact designVSAvoidconsistent user experience
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The lock device is segmented into rotating components (knob, actuating element) and stationary components (credential receiver, stationary structure). This segmentation allows the credential receiver to remain fixed in orientation while the actuating element rotates, resolving the contradiction between compact design and consistent user experience.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A stationary structure acts as an intermediary between the rotating actuating element and the credential receiver. The stationary structure contains the credential receiver and remains fixed during rotation, mediating between the moving and stationary components to maintain consistent orientation while enabling compact integration.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a static credential receiver is positioned next to the knob, then the orientation problem is avoided, but the device complexity increases

Engineering Contradiction:
Improveconsistent user experienceVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The stationary structure is nested within or integrated with the actuating element structure. The credential receiver is positioned within the stationary structure, which itself is integrated into the overall actuating device assembly. This nesting approach maintains consistent orientation while minimizing device complexity through integrated design.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the credential receiver is arranged radially inside the actuating element, then the design is compact and orientation is maintained, but the manufacturing complexity increases

Engineering Contradiction:
Improvecompact designVSAvoidmanufacturing complexity
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The radial arrangement is achieved through segmentation of the stationary structure into modular components that can be manufactured separately and assembled. The credential receiver, stationary structure, and actuating element are designed as separable segments with standardized interfaces, reducing manufacturing complexity while maintaining the compact radial configuration.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12467282B2Actuating device for lock device, and lock device
Publication Date: 2025.11.11 ASSA ABLOY AB
  • US12467282B2 patent drawing
  • US12467282B2 patent drawing
  • US12467282B2 patent drawing

AI summary

An actuating device (12a, 12b, 12c) for a lock device (10) comprising a stationary structure (90) having a credential receiver (40) for receiving a credential input (42) from a user; an actuating element (16) rotatable about an actuation axis (18) relative to the stationary structure by direct manipulation by the user, where the stationary structure is arranged at least partly inside the actuating element; a locking member (24) movable between a locked position (106) and an unlocked position (no); and an electromechanical transfer device (y2a-y2c) arranged, based on the credential input, to adopt a disabled state (104), in which the locking member cannot be moved from the locked position to the unlocked position by rotation of the actuating element, and an enabled state (108) in which the locking member can be moved from the locked position to the unlocked position by rotation of the actuating element; wherein the credential receiver is at least partly arranged radially inside the actuating element with respect to the actuation axis.