Snib Assembly for Automatic Multipoint Locks Against Accidental Lockout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automatic multipoint locks with remote locking elements can accidentally lock out users when the triggers come into contact with the keeper element, lacking a snibbing arrangement to prevent automatic firing in a snibbed position.
Innovation Solution
A snib assembly for automatic multipoint locks, featuring an abutment shoulder on the remote lock bar, a shaped opening in the faceplate, and a snib with a rivet that moves between a snibbed and free position to prevent the remote locking elements from firing when the trigger contacts the keeper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic multipoint locks use triggered locking elements that automatically fire when triggers contact keepers, then locking reliability is improved, but accidental lockout risk increases
Solution Approach 1:
The patent introduces a keeper element as an intermediary component between the trigger and the locking mechanism. The keeper acts as a mediator that can be selectively engaged or disengaged from the trigger, allowing controlled automatic locking when desired while preventing accidental lockout when the keeper is disengaged. This intermediary element provides a mechanical interface that enables both automatic and manual control modes.
Solution Approach 2:
The patent implements dynamic control of the locking system by allowing the keeper element to be positioned in different states (engaged or disengaged from the trigger). This dynamic configuration enables the system to switch between automatic locking mode (when keeper is engaged) and manual control mode (when keeper is disengaged), adapting the locking behavior to user needs and preventing accidental lockout.
2Ease of operation
If remote locking elements are made automatic for convenience, then ease of operation is improved, but loss of manual control increases
Solution Approach 1:
The system provides dynamic adaptability by allowing the user to configure the locking behavior through the keeper element. When the keeper is engaged, the system operates automatically for convenience. When the keeper is disengaged, full manual control is restored, allowing users to prevent lockout in specific situations. This dynamic switching capability maintains both ease of operation and manual control flexibility.
Solution Approach 2:
The remote locking elements are designed with multi-functionality, capable of operating in both automatic mode (when trigger contacts keeper) and manual mode (when trigger does not contact keeper). This universal design allows the same mechanism to serve different purposes based on the keeper's position, providing both automated convenience and manual oversight as needed.
3Object-affected harmful factors
If snib assembly prevents trigger contact with keeper, then accidental lockout prevention is improved, but automatic locking functionality is reduced
Solution Approach 1:
The snib assembly provides dynamic control by physically preventing trigger contact with the keeper when engaged. This mechanical blocking mechanism reliably prevents accidental lockout by ensuring the trigger cannot inadvertently contact the keeper. The system maintains automatic locking functionality when the snib is disengaged, allowing users to switch between protection mode and automatic locking mode as needed.
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 snib assembly effectively prevents accidental locking out by allowing manual control over the remote locking elements, ensuring the lock remains in a retractable state until intentionally released, enhancing user convenience and security.
Implementation Method 1
an automatic locking tongue biased into a fully extended, locked position by a biasing member
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A snib assembly for an automatic multipoint lock arrangement and a snibbed automatic multipoint lock arrangement is provided in which the snib assembly includes an abutment shoulder on the at least one elongate remote lock bar, a shaped opening in the faceplate, the shaped opening with at least two opening portions offset from one another and a snib comprising a snib front plate extending substantially parallel with an external side of the faceplate and a snib rivet extending from an inner surface of the snib front plate, and extending through the shaped opening in the faceplate wherein movement of the snib front plate causes movement of the snib rivet between a snibbed position in the shaped opening in the faceplate in which the snib rivet abuts the abutment shoulder of the at least one elongate remote lock bar when in a retracted position and a free position in the shaped opening in the faceplate in which the snib rivet is free of the abutment shoulder of the at least one elongate remote lock bar.