Multipoint Door Lock System with Biasing Transfer Block
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Solution Overview
Problem
Conventional multipoint door locks are expensive and require labor-intensive installation, and they can be unreliable due to issues like components getting stuck in undesired positions, leading to failed locking or unlocking mechanisms.
Innovation Solution
A multipoint door lock system that integrates a latch, transfer block, biasing elements, and a translating member, allowing for easy installation on existing doors by modifying the door frame with secondary bores and using biasing elements to ensure proper locking and unlocking functionality, with an optional compressible interface assembly and emergency unlocking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional multipoint door locks are installed, then security is improved, but installation complexity and cost increase due to labor-intensive modifications required
Solution Approach 1:
The multipoint door lock system is divided into separate functional modules: a deadbolt mechanism for primary locking, and independent translating members with latches for secondary locking points. This segmentation allows the lock to be installed on existing doors without requiring complete door replacement or extensive modifications, as each module can be independently mounted and configured.
Solution Approach 2:
The door lock system is designed to work with standard door configurations by providing universal mounting options. The translating members can be installed in various positions along the door edge, and the system accommodates different door thicknesses and frame types, making it adaptable to existing doors without requiring custom fabrication for each installation scenario.
2Stability of the object's composition
If components are designed to remain fixed in position, then structural stability is improved, but reliability decreases when foreign matters cause components to get stuck
Solution Approach 1:
The translating members are equipped with biasing elements (springs) that apply continuous force to ensure they can overcome resistance from foreign matters or installation imperfections. This pre-applied force acts as a cushion against potential sticking issues, allowing the translating members to maintain their intended movement between retracted and extended positions even when encountering unexpected resistance.
Solution Approach 2:
The translating members are designed to move dynamically between retracted and extended positions rather than remaining completely fixed. This dynamic capability allows the locking mechanism to adapt to varying conditions, including the presence of foreign matters, by adjusting its position to achieve proper engagement or disengagement as needed.
3Reliability
If additional elements are added to multiply locking force, then security is improved, but device complexity and cost increase
Solution Approach 1:
The system merges the deadbolt mechanism with multiple translating member latches into a coordinated locking system. Rather than using entirely separate locking mechanisms, the deadbolt and translating members work together, with the deadbolt providing primary security and the translating members providing additional locking points that engage with corresponding receivers in the door frame, creating a unified multipoint locking system.
Solution Approach 2:
The translating members act as intermediaries between the deadbolt operation and the additional locking points. When the deadbolt is engaged or disengaged, it triggers the translating members to move accordingly, providing the multiplication of locking force without requiring each component to be independently controlled, thus reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides enhanced security and reliability by ensuring the door can be safely locked and unlocked without requiring extensive modifications to the door frame, addressing the issues of cost and installation complexity while maintaining normal door operation.
Implementation Method 1
The first biasing element is mounted to the door frame and is adapted to cause the transfer block to return to the inactive position when the deadbolt is removed from the bolt opening
Implementation Method 2
Moving the transfer block to the active position in the absence of a force sufficient to cause a compression of the second biasing element causes a displacement of the translating member
Data Source
AI summary
A multipoint door lock system comprises a door frame having a bolt opening and a secondary opening. A latch takes an activable position when the door is opened and a pre-armed position when the door is closed. A door-locking tip of the latch protrudes from the secondary opening of the door frame and into a secondary bore of the door when the door is closed. A transfer block moves from an inactive position to an active position upon insertion the deadbolt in the bolt opening. A biasing element causes a displacement of a translating member when the transfer block moves to the active position in the absence of a force sufficient to cause a compression of the biasing element. This action of the translating member locks the latch in its pre-armed position within the secondary bore.