Meandering Fiber-Plastic Spring Core with Reinforcement Elements
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Solution Overview
Problem
Bending spring elements made of fiber-plastic composite material are prone to damage from compressive loads and excessive deformation, which can lead to undesirable contact between adjacent spring leg sections, causing stress and potential damage, especially when subjected to high loads.
Innovation Solution
A bending spring element with a meandering spring core covered by a plastic foam material, where spring reinforcing elements are strategically placed to increase spring force upon deformation, preventing contact between adjacent spring leg sections and distributing load effectively, thereby reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the spring core is made of fiber-plastic composite material, then the weight is reduced, but the resistance to compressive load is insufficient
Solution Approach 1:
The patent uses fiber-plastic composite material for the spring core, combining different materials (fiber and plastic) to achieve a balance between weight reduction and mechanical strength. The composite structure allows the spring to maintain low weight while providing sufficient resistance to compressive loads through the synergistic properties of the fiber reinforcement and plastic matrix.
2Force
If the spring core is severely deformed, then the spring force increases, but adjacent spring leg sections touch and cause damage
Solution Approach 1:
The patent incorporates a covering that preliminarily prevents excessive deformation of the spring core. The covering is designed to contact adjacent spring leg sections before they can touch each other, thereby preventing damage in advance. This preliminary protective action ensures that the spring can generate high spring force when needed without risking structural damage from over-compression.
3Force
If additional spring reinforcement elements are added, then the spring force is enhanced, but the device complexity increases
Solution Approach 1:
The patent combines the spring core and the covering into a single integrated component. The covering is formed as one piece with the spring core, eliminating the need for separate reinforcement elements and reducing assembly complexity. This merging approach enhances spring force while maintaining simple device structure and manufacturing processes.
4Reliability
If the spring core is protected from environmental influences, then the durability is improved, but the weight increases
Solution Approach 1:
The patent uses a thin-walled covering made of plastic material to protect the spring core from environmental influences. The covering is designed with minimal wall thickness to provide protection against corrosion and mechanical damage while adding minimal weight. This flexible shell approach ensures durability without significantly increasing the overall weight of the spring element.
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 effectively enhances the spring force of the bending spring element, preventing excessive deformation and damage by increasing the spring force when compressed, while maintaining a low weight and minimizing interference with the spring core's properties, thus providing robust protection against environmental influences.
Implementation Method 1
A bending spring element with a meandering spring core covered by a plastic foam material
Implementation Method 2
spring reinforcing elements are strategically placed to increase spring force upon deformation
Implementation Method 3
the spring core has at least two spring leg sections running in opposite directions, which are connected via a deflection region
Data Source
Figure 1~4
AI summary
A bending spring element (1) with a spring core (2) made of fiber-reinforced plastic composite material, wherein the spring core (2) has at least two oppositely extending spring leg sections (3) which are connected via an intermediate deflection area (4) in which the course of the spring core (2) changes so that a meandering spring core (2) is formed, has several spring reinforcement elements (10) on the spring core (2) which are arranged such that the spring force increases when the bending spring element (1) is deformed as intended. The spring reinforcement elements (10) are arranged at least on two oppositely extending spring leg sections (3) and/or in deflection areas (4) such that when the bending spring element (1) is deformed as intended, the corresponding spring reinforcement elements (10) are attached to corresponding spring leg sections (3) or...The spring reinforcement elements (10) located at adjacent deflection areas (4) abut each other and increase the spring force during further deformation of the bending spring element (1). The spring reinforcement elements (10) arranged on the spring leg sections (3) and/or on the deflection areas (4) are arranged overlapping or congruently in one deformation direction (8).