Wall-Cupboard Hanging Bracket with Shear-Resistant Peg Fixation
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Solution Overview
Problem
Existing hanging brackets for wall-cupboards often fail to provide effective, durable, and safe anchoring due to shear forces generated when the cupboard is loaded, particularly those with plastic components, leading to potential falling or breakage.
Innovation Solution
A visible hanging bracket with a metallic base and shear-resistant pegs made of plastic material with a sawtooth profile, which are pressure-inserted into holes on the cupboard shoulder, combined with traditional self-tapping screws for secure fixation and regulation mechanisms to resist shear stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If self-tapping screws or pressure-yielding pins are used to fix the hanging bracket to the cupboard shoulder, then the assembly is simple and economical, but the resistance to shear stress is insufficient leading to potential failure
Solution Approach 1:
The fixing system is divided into two distinct components working together: shear-resistant pins that resist lateral forces and self-tapping screws that provide anchoring. This segmentation allows each component to specialize in one function, achieving both simplicity and high shear resistance simultaneously.
Solution Approach 2:
The solution combines two different fixing mechanisms (pins and screws) into a composite fixing system. The pins provide shear resistance while the screws provide anchoring, creating a composite solution that overcomes the limitations of using either method alone.
2Device complexity
If traditional fixing methods are used, then the structure is simple, but the coupling is not effective or durable under heavy loads
Solution Approach 1:
The fixing system is divided into two distinct components working together: shear-resistant pins that resist lateral forces and self-tapping screws that provide anchoring. This segmentation allows each component to specialize in one function, achieving both simplicity and high shear resistance simultaneously.
3Ease of manufacture
If plastic components are used in the hanging bracket, then the manufacturing is economical, but the components may breakage under excessive loading
Solution Approach 1:
The solution combines two different fixing mechanisms (pins and screws) into a composite fixing system. The pins provide shear resistance while the screws provide anchoring, creating a composite solution that overcomes the limitations of using either method alone.
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 solution ensures a stable and firm assembly of the hanging bracket on the wall-cupboard, effectively resisting shear forces and preventing misalignment or breakage, even under heavy loads, while being simpler and more economical than previous solutions.
Implementation Method 1
Yielding pegs made of plastic material and having a sawtooth profile, can collaborate with these metal pins for fixing them to the shoulder of the cupboard
Implementation Method 2
These pins, in direct contact with the surface of the hole of the shoulder, guarantee an optimum resistance to shear stress
Data Source
AI summary
A hanging bracket for the wall assembly of a wall-cupboard includes, in combination: a metallic base, an arm assembled and articulated on the base and protruding from it with a hook configured for anchoring to a plate (or other equivalent element) fixed to the wall, first and second regulation mechanisms regulating the position of the arm in height and in depth, respectively, and a flange integral with the base and equipped with at least one fixing unit of the hanging bracket to the wall-cupboard, wherein the fixing unit includes a shear-resistant element cooperating with a fixing peg of the hanging bracket to a shoulder of the cupboard. According to the invention, the peg is fitted onto a collar protruding from the flange, there also being a reciprocal fixing element between the collar and the peg, to make them integral with each other.