Spring in which inner middle ring and outer middle ring are matched with and connected to each other and elastic mattress

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Solution Overview

Problem

Existing elastic mattresses lack the ability for local elasticity to change with the posture of the human body due to springs being connected together, leading to uneven weight distribution and reduced comfort.

Innovation Solution

A spring design featuring an inner middle ring and an outer middle ring connected through a connecting structure, with the inner middle ring spaced apart from the spring body and enclosed in a flexible sleeve, allowing independent movement and reduced interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If springs are connected together to bear weight collectively, then the elastic mattress can withstand greater weight, but local elasticity cannot change with the posture of the human body

Engineering Contradiction:
Improveweight bearing capacityVSAvoidlocal elasticity adaptability
Core Design Contradiction:
ForceVSAdaptability or versatility

Solution Approach 1:

The spring system is segmented into independent spring units, each capable of independent deformation. The connecting structure uses flexible connection points (not rigid connections) to allow each spring to respond independently to local body pressure, enabling local elasticity to adapt to different body postures while maintaining overall weight bearing capacity through the collective arrangement of multiple springs

Inventive Principle:
Principle #1Segmentation

2Force

If upper ends of springs are connected together to provide elastic force jointly, then the elastic mattress can withstand greater weight, but springs cannot be independently stressed and may separate from each other

Engineering Contradiction:
Improvecollective elastic forceVSAvoidspring independence and connection stability
Core Design Contradiction:
ForceVSReliability

Solution Approach 1:

A connecting structure acts as an intermediary between adjacent springs. This connecting structure includes connection points that attach to the upper ends of springs while allowing independent movement of each spring. The connecting structure transmits force between springs while maintaining their independence, preventing separation while enabling collective weight bearing

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If springs are connected rigidly to ensure stability, then connection stability is improved, but springs cannot move independently and interfere with each other

Engineering Contradiction:
Improveconnection stabilityVSAvoidspring independence
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The connecting structure employs dynamic connection points rather than rigid fixed connections. These connection points allow springs to move independently in response to local pressure while maintaining stable attachment. The connection stability is achieved through the mechanical design of the connection points that prevent separation while permitting necessary movement for independent spring action

Inventive Principle:
Principle #15Dynamics

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 ensures independent weight bearing and movement of springs, improving comfort and stability by preventing entanglement and standardizing production, while maintaining connection stability.

Implementation Method 1

a flexible sleeve enclosing the spring body and the inner middle ring

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The inner middle ring and the outer middle ring are matched with and connected to each other; The outer middle ring is buckled to the inner middle ring

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Implementation Method 3

the springs are only connected through the outer middle ring, which ensures that the springs are relatively independent and can independently bear weight

Methodology Applied
Scientific EffectElastic Force: Elasticity

Data Source

PatentUS20250248535A1Spring in which inner middle ring and outer middle ring are matched with and connected to each other and elastic mattress
Publication Date: 2025.08.07 LENG LUHAO
  • US20250248535A1 patent drawing
  • US20250248535A1 patent drawing
  • US20250248535A1 patent drawing

AI summary

A spring in which an inner middle ring and an outer middle ring are matched with and connected to each other includes a spring body, the inner middle ring, a flexible sleeve, and an outer middle ring. The inner middle ring is sleeved on the spring body and is at least spaced apart from a force-bearing end of the spring body for ¼ of a spring length of the spring. The flexible sleeve encloses the spring body and the inner middle ring, and the outer middle ring is buckled to the inner middle ring. An outer wall of the outer middle ring includes a connecting structure, and the spring and a second spring are connected together through the connecting structure.