Elastic module and elastic cushion

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing mattresses with independent spring units occupy significant space during transportation and are difficult to handle manually, and users must disassemble and reinstall components to change firmness levels, which is inconvenient and prone to damage.

Innovation Solution

The elastic module comprises splicable spring units with first and second springs that can be axially compressed and locked, allowing for easy disassembly and assembly, reducing space during transportation, and enabling users to replace second springs for varying firmness without disassembling the entire unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If independent spring units are used in mattresses, then the mattress can be disassembled for transportation, but the spring units occupy significant space and are difficult to handle manually during transportation

Engineering Contradiction:

Improvedisassembly functionalityVSAvoidoccupied space during transportation

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The second spring is nested within the first spring, with the second spring positioned inside the hollow structure of the first spring. This nesting arrangement allows both springs to occupy the same spatial envelope, significantly reducing the volume occupied during transportation while maintaining the disassembly functionality for adaptability.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If independent spring units are used in mattresses, then the mattress can be disassembled, but the spring units are challenging to manually transport quickly

Engineering Contradiction:

Improvedisassembly functionalityVSAvoidtransportation speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

By nesting the second spring within the first spring, the overall dimensions of the spring unit are reduced. This compact nested structure decreases the time required for manual transportation and handling, as smaller units can be moved more quickly and efficiently.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

If users want to replace springs with different firmness levels, then user preferences can be met, but users must disassemble and reinstall all components of the independent spring units, which is highly inconvenient and prone to damage

Engineering Contradiction:

Improvefirmness customizationVSAvoidconvenience of spring replacement

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The spring unit is segmented into two distinct springs: the first spring with an end cover and the second spring with a bottom cover. This segmentation allows the second spring to be independently removed and replaced by simply detaching it from the end cover, eliminating the need to disassemble the entire spring unit structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The end cover of the first spring serves multiple functions: it acts as a mounting structure for the second spring, providing a universal interface that allows different second springs (with varying firmness levels) to be attached to the same first spring without requiring different components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If users want to replace springs with different firmness levels, then user preferences can be met, but the process is highly prone to damage

Engineering Contradiction:

Improvefirmness customizationVSAvoiddamage risk during assembly

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By segmenting the spring unit into a first spring with end cover and a second spring with bottom cover, the replacement process is simplified to only involve the second spring. This reduces the number of assembly steps and connection points that could potentially fail or cause damage during installation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting structure designed in this patent enables users to easily install and replace the second spring themselves without requiring complex tools or specialized knowledge. The self-contained mounting structure with end cover and bottom cover allows for tool-free or minimal-tool assembly, reducing the risk of user error and damage during the replacement process.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250331653A1Elastic module and elastic cushion

Publication Date: 2025.10.30 LENG LUHAO

AI summary

An elastic module includes a plurality of spring units. The plurality of spring units are configured to be spliced together to form the elastic module, and each of the plurality of spring units includes a first spring and a second spring. The first spring is configured to be axially compressed to a locking position, and an upper end of the first spring is disposed with an end cover. The second spring is detachably connected to the end cover to form a corresponding one of the plurality of spring units.