Lock Core Structure Preventing Key Socket Misalignment

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Solution Overview

Problem

Conventional laminated locks are cumbersome to manufacture and assemble due to numerous elements and are prone to dislocation of lock plates when subjected to vibrations, making key insertion and operation difficult.

Innovation Solution

A lock core structure comprising a lock core shell, a lock piece base with compression springs, a positioning plate, a detent member, and a positioning buckle, which allows lock pieces to shift horizontally instead of rotating, ensuring stable key insertion and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple lock plates and spacers are alternately laminated within the lock piece seat, then the locking function is achieved, but the manufacturing and assembly process becomes complex and time-consuming

Engineering Contradiction:
Improvelocking functionVSAvoidnumber of elements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple lock plates and spacers into a single integrated lock piece base with through slots. The lock pieces are positioned within these slots and held by compression springs, eliminating the need for separate laminated components while maintaining the locking function through the integrated structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lock piece base is segmented into multiple through slots that can independently accommodate lock pieces. This segmentation allows each slot to function independently while being part of a unified base structure, simplifying both manufacturing and assembly compared to laminating multiple complete components.

Inventive Principle:
Principle #1Segmentation

2Reliability

If lock plates are arranged in the lock piece seat, then the locking mechanism is formed, but the lock plates may randomly rotate and become dislocated due to vibrations

Engineering Contradiction:
Improvelocking mechanismVSAvoidalignment of key holes
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The lock pieces are preliminarily positioned within the through slots of the lock piece base during assembly. The compression springs are pre-installed in the slots to provide continuous holding force, ensuring the lock pieces remain properly aligned and preventing random rotation or dislocation before the lock is even operated.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The compression springs act as intermediaries between the lock pieces and the lock piece base. These springs provide continuous contact and holding force, mediating the mechanical connection to prevent dislocation while allowing the necessary movement for locking and unlocking operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If lock plates are held in place by friction or interference fit, then assembly is simple, but the key holes may become misaligned under vibration

Engineering Contradiction:
Improveassembly simplicityVSAvoidkey hole alignment
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

Compression springs serve as intermediary elements that actively maintain the position of lock pieces within the through slots. Unlike passive friction or interference fits, these springs provide continuous dynamic holding force that adapts to vibrations and operational stresses, ensuring key hole alignment is maintained without complex assembly procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Simplifies manufacturing and assembly, prevents dislocation of key sockets, and enhances the anti-theft function by facilitating easy and stable key operation.

Implementation Method 1

a plurality of compression springs (32) correspondingly arranged in the accommodating slots (314) of the lock piece base (31) respectively

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a detent member (35) arranged in the notch (310) of the lock piece base (31)

Methodology Applied
Scientific EffectMechanical engagement: Mechanical Fastener

Data Source

PatentUS12054967B2Structure composed of lock core and key
Publication Date: 2024.08.06 LIN YU PIN
  • US12054967B2 patent drawing
  • US12054967B2 patent drawing
  • US12054967B2 patent drawing

AI summary

The present invention provides a structure composed of lock core and key, which lock pieces may only shift in parallel, so as to avoid the lock pieces from rotating and to prevent the key sockets on the lock pieces from misaligning with one another due to random rotation of the lock pieces, which ensures easy and smooth key insertion and operation.