Low-Profile Multipoint Lock Linkage for Secure Tight Closure
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Solution Overview
Problem
Multipoint locks are often complex and bulky, requiring additional recesses and high force inputs, which can interfere with door or window operation and compromise weather performance.
Innovation Solution
A low-profile multipoint lock design featuring a pivoting lock bolt with a fixed and sliding pivot point, a translating lock bolt, and a linkage mechanism that allows for simultaneous actuation of both bolts, reducing the need for additional recesses and minimizing interference with door or window operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional multipoint locks are used, then secure locking is achieved, but the lock becomes complex and bulky requiring additional recesses
Solution Approach 1:
The patent combines the actuation of multiple lock bolts (pivoting lock bolt and translating lock bolt) into a single integrated linkage mechanism. The linkage connects both bolts to a common actuation point, allowing simultaneous control of multiple locking points through one unified mechanism, thereby reducing overall system complexity while maintaining secure multi-point locking
Solution Approach 2:
The linkage mechanism serves multiple functions: it actuates both the pivoting lock bolt and translating lock bolt, provides structural support for the lock assembly, and enables coordinated movement of multiple locking elements. This multi-functionality reduces the need for separate dedicated components for each locking action
2Reliability
If traditional multipoint locks are used, then secure locking is achieved, but high force inputs are required
Solution Approach 1:
The locking force is divided and distributed across multiple lock bolts (pivoting lock bolt and translating lock bolt) that engage at different points along the door edge. Each bolt handles a portion of the total locking force, reducing the force input required at any single actuation point while maintaining overall secure locking
Solution Approach 2:
The pivoting lock bolt rotates about a pivot point during engagement, allowing dynamic adaptation to loading conditions. This rotational movement enables the bolt to self-align and distribute forces more effectively compared to rigid linear engagement, reducing peak force requirements
3Adaptability or versatility
If traditional multipoint locks are used, then locking function is provided, but additional recesses are required increasing profile
Solution Approach 1:
The linkage mechanism is nested within the existing door edge profile, with the pivoting lock bolt and translating lock bolt arranged in a compact, space-efficient configuration. The linkage folds and collapses during operation, allowing the entire mechanism to fit within minimal recesses while providing full multi-point locking functionality
4Reliability
If traditional multipoint locks are used, then secure locking is achieved, but interference with door or window operation occurs
Solution Approach 1:
The linkage mechanism is designed to be extracted or removed during door or window operation, allowing the lock bolts to disengage cleanly without interfering with the movement of the door or window. The pivoting and translating bolts can be selectively retracted, enabling unobstructed operation of the associated opening
Data Source
AI summary
A multipoint lock including a pivoting lock bolt including a fixed pivot point and a sliding pivot point, a translating lock bolt, a linkage coupled to and configured to pivot the pivoting lock bolt and to translate the translating lock bolt, an actuation mechanism configured to actuate the linkage and to effect pivoting of the pivoting lock bolt and translation of the translating lock bolt, and an input mechanism configured to receive user input and transmit the user input to the actuation mechanism, the user unput including shifting the input mechanism between an unlocked position and a locked position.