Electronic Lock Dead Latch Channel Adjustment Without Disassembly

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Solution Overview

Problem

Existing electronic locks require disassembly and loosening of screws to adjust the dead latch channel position, which is inconvenient and risky due to potential human error and damage to other components.

Innovation Solution

An electronic lock design that allows direct adjustment of the dead latch channel from the lock plate without disassembly, using fixed and active adjust elements with adjustable channels, aligned via screws, ensuring precise alignment without uninstalling the lock.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the electronic lock is disassembled and the locking screw is loosened to adjust the dead latch channel position, then the dead latch channel can be repositioned, but the adjustment process becomes inconvenient and risky with potential for human error and malfunction

Engineering Contradiction:

Improveadjustability of dead latch channelVSAvoidconvenience of adjustment

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The adjustment mechanism is divided into separate modular components: a fixed adjust element with a positioning channel and an active adjust element with an adjustable channel. This segmentation allows the active element to be independently repositioned along the positioning channel without disassembling the entire lock, enabling convenient adjustment while maintaining system integrity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The positioning channel acts as an intermediary structure that guides and constrains the active adjust element during repositioning. This intermediary mechanism enables precise alignment and secure positioning of the dead latch channel without requiring complete disassembly or risky screw loosening operations

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the electronic lock is disassembled to adjust the dead latch channel, then the channel position can be changed, but the risk of human error and damage to other components increases

Engineering Contradiction:

Improveadjustability of dead latch channelVSAvoidrisk of malfunction

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By segmenting the adjustment mechanism into fixed and active elements that can be independently adjusted, the system allows channel repositioning without disassembling the entire lock body. This reduces the risk of accidental damage to other components and maintains system reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The positioning channel is pre-designed with specific engagement features that guide the active adjust element into the correct position before final securing. This preliminary guidance structure prevents misalignment and ensures accurate positioning, reducing human error during adjustment

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12497802B2Electronic lock with adjustable dead latch channel location

Publication Date: 2025.12.16 LIAO YI FAN

AI summary

An electronic lock with adjustable dead latch channel location, comprising: an electronic lock body, having a housing cavity and a latch bolt; a plate, further having a gap for exposing the housing cavity and the latch bolt; a fixed adjust element, the middle section of the fixed adjust element is arranged below the gap, and set a fixed channel; and an active adjust element, having a ramp element relative to the latch bolt, the ramp element having an active channel relative to the positioning channel, and the width of the active channel is narrower than the distance between the pair of the fixing blocks, so the present invention can directly adjust the position of the dead latch channel without disassembling the entire electronic lock from the door frame.