Locking Slide Mechanism for Handle-Operated Unlocking
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Solution Overview
Problem
Existing locks do not conveniently allow the option to control unlocking via the handle, limiting user convenience and requiring additional mechanisms to switch between handle and key-operated modes.
Innovation Solution
The locking slide is connected to a tilting lifter that can pivot into the lock cylinder receptacle, allowing direct intervention in the locking mechanism via the handle, with a coupling device that includes a support surface and driver lug, enabling easy control of the locking slide's movement and blocking the handle's engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lock allows unlocking via both handle and cylinder, then user convenience is improved, but security control is worsened
Solution Approach 1:
The locking slide is designed to dynamically change position between blocking and releasing the coupling device, allowing the lock to switch between handle-operated and cylinder-operated modes. The tilting lever enables this dynamic transition by pivoting to drive the locking slide into the position that blocks the coupling device, preventing handle operation when security is required.
Solution Approach 2:
The locking slide acts as an intermediary component between the handle mechanism and the coupling device. When positioned to block the coupling device, it mediates by preventing the handle from directly operating the locking mechanism, thereby providing security control while still allowing cylinder operation.
2Reliability
If the locking slide blocks the coupling device, then security control is improved, but device complexity is worsened
Solution Approach 1:
The locking slide combines multiple functions into a single component: it blocks the coupling device, guides the tilting lever, and controls the handle's engagement with the locking mechanism. This merging reduces the need for separate components for each function, thereby reducing overall device complexity while maintaining security control.
Solution Approach 2:
The locking slide serves multiple purposes within the lock mechanism: it acts as a blocking element for the coupling device, a guide for the tilting lever, and a controller for handle operation. This multi-functionality reduces the total number of components needed, simplifying the overall device structure while achieving security control.
3Ease of operation
If the tilting lever pivots into the cylinder receptacle, then ease of operation is improved, but device complexity is worsened
Solution Approach 1:
The locking control mechanism is segmented into distinct functional components: the tilting lever for user operation, the locking slide for control, and the coupling device for mechanism actuation. This segmentation allows each component to perform its specific function efficiently, improving ease of operation while keeping the overall complexity manageable through clear functional division.
Data Source
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AI summary
A lock with a bolt assembly (2) and a coupling device (15) connecting the bolt assembly (2) to a cam (6) has a locking slide (19) for selectively blocking or releasing the coupling device (15). The locking slide (19) can be actuated by a lock cylinder (5) and allows the bolt assembly (2) to be selectively blocked or released via the cam (6). This makes the lock particularly easy to use.