Door Lock Trigger Inhibits Premature Deadbolt Extension
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Solution Overview
Problem
Conventional deadbolt-type locks lack built-in safety mechanisms to prevent premature extension of the deadbolt prior to the door being fully closed, which can lead to damage to the door frame, the door, or the lock itself.
Innovation Solution
A door locking mechanism featuring a trigger and slide lock configuration, where the ball lock inhibits the slide lock's transition to the locked position until the door is fully closed, ensuring the deadbolt extends only when the door is in its closed position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the deadbolt is extended prior to the door being closed, then the door may be locked, but damage may occur to the frame, door, or deadbolt
Solution Approach 1:
The trigger is extended in advance (before the door is closed) to occupy the space where the deadbolt would extend. This preliminary positioning of the trigger prevents the deadbolt from extending prematurely by blocking its path, thereby avoiding damage while maintaining the ability to lock once the door is properly closed
Solution Approach 2:
The trigger acts as an intermediary component between the door frame and the deadbolt mechanism. When extended, it physically blocks the deadbolt's extension path, serving as a protective mediator that prevents direct harmful contact between the deadbolt and the frame/door structure during improper operation
2Reliability
If the deadbolt is extended before the door is closed, then locking may be achieved, but forceful contact with the frame may cause damage
Solution Approach 1:
The trigger extends in advance to occupy the deadbolt's extension space, preventing the deadbolt from being forced into the frame or door structure. This preliminary positioning eliminates the harmful forceful contact that would otherwise occur during premature extension attempts
Solution Approach 2:
The trigger's extended position, which initially seems to obstruct the locking function, actually converts the potential harmful force of premature deadbolt extension into a beneficial protective barrier. The trigger absorbs the operational sequence constraint, transforming what would be a damaging force into a safe operational protocol
Data Source
AI summary
A door locking mechanism includes a main body, a trigger, and a slide lock. The slide lock and the main body are configured such that at least a portion of the slide lock extends outside of the main body in a locked position, with the slide lock being advanced into the main body as the slide lock transitions toward an unlocked position. A ball lock is in operative communication with the trigger and the slide lock, with the ball lock, the trigger, and the slide lock being configured such that when the trigger is in the extended position, the ball lock inhibits movement of the slide lock from the unlocked position toward the locked position. Movement of the trigger from an extended position toward a retracted position allows the ball lock to assume an unobstructed position allowing the slide lock to transition from toward the locked position.