Blow Molding Toolbox Corner Reinforcement
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Solution Overview
Problem
Conventional blow molding toolboxes have insufficient structural strength and lack a buffering effect when they collide with objects or fall, leading to potential damage and a shortened lifespan due to their hollow internal structure and plastic material.
Innovation Solution
The blow molding toolbox incorporates multiple reinforcing elements with connecting recesses, guiding slots, and positioning recesses at the corners, along with buffering elements made of thermo-plastic rubber, to enhance structural strength and provide a buffering effect, while maintaining a visually appealing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the toolbox is made with hollow internal structure to reduce weight, then the overall weight is reduced and carriage is convenient, but the structural strength is insufficient and corners may break when knocked against objects or fallen
Solution Approach 1:
The patent combines plastic material with metal reinforcing elements (corner protectors) to create a composite structure. The plastic provides lightweight properties while the metal elements provide enhanced strength and impact resistance at critical corners, resolving the contradiction between weight reduction and structural strength.
Solution Approach 2:
Instead of making the entire toolbox structure uniformly strong (which would increase overall weight), the patent applies reinforcing elements specifically at the corners where impact damage most commonly occurs. This localized reinforcement provides necessary strength where needed while maintaining the lightweight hollow structure in other areas.
2Ease of manufacture
If the toolbox is made of plastic with hollow structure, then manufacturing is convenient by blow molding method, but the toolbox cannot provide buffering effect when knocked against objects or fallen on ground
Solution Approach 1:
The patent incorporates buffering elements at the corners of the toolbox before impact occurs. These elements are pre-installed as part of the toolbox structure, providing cushioning protection in advance against potential impacts, thus preventing damage without affecting the manufacturing process of the main plastic body.
3Strength
If reinforcing elements are added to increase structural strength, then the toolbox can withstand impacts better, but the device complexity increases
Solution Approach 1:
The patent divides the reinforcement function into separate, modular corner protector elements that can be independently manufactured and attached. This segmentation allows each corner element to be optimized for strength while keeping the overall design simple and manageable, rather than creating a single complex reinforced structure.
Data Source
AI summary
A blow molding toolbox has a casing, a cover, and multiple reinforcing elements. The casing has multiple connecting recesses, multiple guiding slots, and multiple positioning recesses. The connecting recesses are deposited on an external surface of the casing at corners of the casing. The cover is pivotally connected to the casing and has a same structure as the casing. Each one of the reinforcing elements is connected to the casing at one of the corners of the casing to cover a corresponding connecting recess of the casing or is connected to the cover at one of the corners of the cover to cover a corresponding connecting recess of the cover, and each reinforcing element has a body, at least one fixing tube, and at least one tapping screw. The reinforcing elements may increase the structural strength of the blow molding toolbox.