One-Sided Lockable Door Handle With Integrated Neck Locking
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Solution Overview
Problem
Existing one-sided locking door fittings are complex to manufacture and assemble, prone to errors, and often require adaptation of the locking mechanism or lock unit to function properly.
Innovation Solution
The door fitting integrates a locking means within the neck section of the handle and an adapter element, allowing for independent locking of the handle without requiring adaptations to the lock unit or additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is integrated into the door fitting with multiple individual parts, then one-sided locking functionality is achieved, but the device complexity increases and manufacturing becomes more difficult
Solution Approach 1:
The patent combines the locking means, operating element, and actuating element into a single integrated unit that is accommodated within the handle. This merging of previously separate components (locking mechanism, operating elements, actuating elements) into one unified structure reduces the number of individual parts, simplifies assembly, and eliminates the need for separate locking mechanisms while maintaining reliable one-sided locking functionality.
2Reliability
If a locking mechanism with multiple components is used, then locking functionality is achieved, but the manufacturing and assembly process becomes more complex
Solution Approach 1:
The locking means is designed as an integrated unit combining the locking mechanism, operating element, and actuating element. This single integrated component can be manufactured as one piece or pre-assembled unit, significantly simplifying the manufacturing process and reducing assembly steps compared to traditional designs that require separate locking mechanisms, operating elements, and actuating elements to be manufactured and assembled individually.
3Reliability
If the locking mechanism is adapted to specific door fittings, then proper functionality is achieved, but the adaptability to different lock units is reduced
Solution Approach 1:
The locking means is designed with universal compatibility to work with various commercially available lock units. The integrated design incorporates standardized interfaces and dimensions that allow it to be adapted to different door thicknesses and lock unit types without requiring custom adaptation of the locking mechanism itself, thereby maintaining both reliable functionality and broad versatility.
4Ease of operation
If separate operating elements are added to the handle, then locking control is achieved, but the appearance becomes less minimalist
Solution Approach 1:
The operating element and actuating element are integrated into the handle structure itself, forming a unified design where the locking control mechanism is incorporated within the handle's contours. This integration eliminates the need for separate, externally visible operating elements, maintaining a clean minimalist appearance while preserving full locking control functionality through the integrated operating and actuating elements.
Data Source
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AI summary
The invention relates to a door handle (1) with a one-sided lockable handle (10), with at least one rosette (11) for bearing against a door leaf, and with a shaft element (12) for forming an operative connection with the locking mechanism of a lock unit installed in the door leaf, wherein an adapter element (13) is incorporated in a neck section (14) of the handle (10) and is received on the shaft element (12). To create a simple design for a one-sided lockable handle, the invention provides that a locking means (15) is received in or on the neck section (14) of the handle (10), which can be moved into a locking position by means of manual actuation, in which the handle (10) can be rotationally blocked on the rosette (11) by means of the locking means (15).