Tool Box Snap-Fit Lock Segmentation for Wear Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tool boxes suffer from wear and breakage of components due to frequent use, particularly at the connection points of the snap fit lock mechanism, leading to reduced longevity.
Innovation Solution
A tool box design featuring separate fastening and elastic members, with a thrust unit and burglarproof mechanism, where the fastening member is pushed by the elastic member to interlock the casings securely, preventing damage and fatigue, and allowing for easy opening and stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the locking arm and first component are formed integrally with support ribs, then the snap fit lock mechanism can be manufactured simply, but the support ribs are easily worn out or broken due to frequent actions during long-term utilization
Solution Approach 1:
The locking arm is separated from the first component, and the resilient tab is separated from the second component. This segmentation allows each part to be independently designed and replaced, preventing wear concentration at connection points and enabling long-term durability through modular replacement.
Solution Approach 2:
A thrust unit is introduced as an intermediary component between the locking arm and the first component. The thrust unit includes a thrust member that can be replaced when worn, serving as a mediator that protects the main structural components from direct wear and damage during frequent locking and unlocking operations.
2Ease of manufacture
If the resilient tab and second component are formed integrally, then the manufacturing process is simplified, but the connection is easily worn out or broken due to frequent actions during long-term utilization
Solution Approach 1:
The resilient tab is separated from the second component as an independent replaceable part. This allows the resilient tab to be replaced when worn or damaged, maintaining the functionality of the snap fit lock mechanism over long-term use without compromising the structural integrity of the second component.
Solution Approach 2:
The resilient tab is designed as a consumable component that can be discarded when worn and replaced with a new one. This approach maintains the overall system reliability by allowing easy replacement of the wear-prone component without replacing the entire tool box structure.
3Ease of operation
If the cam surface is pressed to drive the locking arm to press the resilient tab, then the locking mechanism can be actuated, but the frequent pressing causes wear and damage to the locking arm and resilient tab
Solution Approach 1:
The resilient tab is designed as a replaceable component that can be discarded when worn from frequent pressing operations. This allows the tool box to maintain its locking functionality over time by simply replacing the worn resilient tab rather than the entire locking mechanism.
Solution Approach 2:
The thrust unit acts as a mediator that absorbs the wear and damage from frequent actuation. The thrust member can be replaced when worn, protecting the more critical locking arm and cam surface components from direct wear, thereby extending the overall lifespan of the locking mechanism.
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 design enhances the tool box's longevity by preventing damage to the fastening and elastic members, ensuring secure interlocking and easy operation, while allowing for secure stacking and a burglarproof feature.
Implementation Method 1
at least one first elastic member biased between at least one fastening member (30) and at least one first receiving slot (12)
Data Source
AI summary
A tool box includes a first casing, a second casing, at least one fastening member, and at least one first elastic member. The first casing has at least one first receiving slot which has two first restriction portions. The second casing has at least one second receiving slot, a second restriction portion, and a first locking portion. The at least one fastening member has a third restriction portion, a second locking portion, and two fourth restriction portions. The at least one first elastic member is biased between the at least one fastening member and the at least one first receiving slot, and the at least one fastening member is pushed by the at least one first elastic member, such that second locking portion is locked onto the first locking portion to interlock the first casing and the second casing.