Mattress Spring Structure With Contact-Preventing End Geometry
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Solution Overview
Problem
Conventional bed mattress springs experience rapid deformation and generate contact noise due to frictional contact between the connection end portion and the uppermost winding, leading to reduced resilient strength and shortened lifespan.
Innovation Solution
A spring structure with a body spring and an exposure wire spring, where a first contact-preventing end is formed at the connection end portion to bend upwardly from the upper end spring, preventing contact with the uppermost winding, and optionally a second contact-preventing end is formed at the uppermost winding to further enhance resilience and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connection end portion is allowed to contact the uppermost winding for structural simplicity, then the manufacturing process is easier, but the spring deforms rapidly and generates contact noise
Solution Approach 1:
The connection end portion is segmented into multiple sections: a first section that contacts the uppermost winding, a second section that is separated from the uppermost winding by a gap, and a third section that connects to the exposure wire spring. This segmentation allows the spring to maintain structural integrity while preventing harmful contact between the connection end portion and the uppermost winding, thereby eliminating contact noise and deformation without complicating the manufacturing process.
Solution Approach 2:
A gap is introduced as an intermediary space between the connection end portion and the uppermost winding. This gap acts as a mediator that prevents direct contact between these two components, thereby eliminating the source of contact noise and deformation while maintaining the overall structural simplicity of the spring assembly.
2Device complexity
If the connection end portion contacts the uppermost winding, then the structure is simpler, but frictional contact causes deformation and reduces resilient strength
Solution Approach 1:
The connection end portion is divided into distinct sections with the second section separated from the uppermost winding by a gap. This segmentation prevents frictional contact that would otherwise cause deformation and loss of resilient strength, while maintaining relatively simple overall structure that does not significantly increase device complexity.
Solution Approach 2:
The gap that separates the connection end portion from the uppermost winding converts a potentially harmful frictional contact into a beneficial non-contact arrangement. This prevents deformation and preserves resilient strength, transforming what would be a structural complication into a design feature that enhances spring performance.
3Object-generated harmful factors
If the connection end portion is separated from the uppermost winding by a gap, then contact noise is prevented, but the structural complexity increases
Solution Approach 1:
The connection end portion is segmented into three sections where the second section is separated from the uppermost winding by a gap. This segmentation effectively prevents contact noise by eliminating direct contact between moving parts, while the segmented structure itself remains relatively simple and does not significantly increase overall device complexity.
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
Prevents deformation and contact noise by ensuring the connection end portion does not contact the uppermost winding, thereby enhancing the resilient strength and prolonging the lifespan of the spring.
Implementation Method 1
preventing a deformation of the spring due to a frictional contact
Implementation Method 2
a body spring (10) formed in a coil shape, upper and lower end springs (16, 18) wound and extending horizontally at upper and lower portions of the body spring
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
Disclosed herein is a spring structure for a bed mattress which comprises a body spring (10) formed in a coil shape, upper and lower end springs (16,18) wound and extending horizontally at upper and lower portions of the body spring, an exposure wire spring (20) formed integrally with the upper end spring in such a fashion as to be disposed above the upper end spring, and a connection end portion (24) for integrally connecting the upper end spring and the exposure wire spring to each other, wherein a first contact-preventing end (30) is formed at the connection end portion in such a fashion as to be bent inclinedly upwardly from a distal end of the upper end spring positioned outwardly from an uppermost winding of the body spring.