Bed frame

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Solution Overview

Problem

Existing bed frames have fixed sizes, making it inconvenient to match them with mattresses of different specifications, as multiple frames need to be manufactured to accommodate various mattress sizes.

Innovation Solution

A bed frame design featuring movable rod members with elastic pins and supporting legs, allowing adjustable length and width to match mattresses of various specifications, utilizing first and second supports with retractable rod members and elastic sheets for size adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If bed frames are manufactured with fixed sizes to match specific mattress specifications, then manufacturing precision and reliability are improved, but adaptability and device complexity worsen as multiple frame types are needed

Engineering Contradiction:
Improveadaptability to different mattress specificationsVSAvoidnumber of different frame types
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The bed frame employs telescopic rod members that can extend and retract to adjust the frame's length and width. The rod members include movable sections that slide within fixed sections, allowing continuous size adjustment to match different mattress dimensions while maintaining a single frame design

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A single bed frame design serves multiple mattress sizes through the telescopic mechanism. The frame can be adjusted to accommodate various standard mattress dimensions (e.g., single, double, queen, king sizes), eliminating the need for multiple specialized frame types

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple bed frame sizes are manufactured to match different mattress specifications, then adaptability is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvematching capability with various mattress sizesVSAvoidmanufacturing process complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The rod members are divided into fixed sections and movable sections that can slide relative to each other. This segmentation allows the frame to achieve multiple sizes from a single manufactured component set, reducing the need to manufacture entirely different frame structures for different mattress sizes

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The movable rod sections are nested within the fixed rod sections, with one telescoping into the other. This nested structure allows compact storage and simplified manufacturing of the adjustable mechanism compared to assembling multiple complete frame structures

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If fixed-size bed frames are used, then structural stability is improved, but versatility and adaptability worsen

Engineering Contradiction:
Improvestructural stabilityVSAvoidsize adjustment capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The frame transitions from a static fixed-size structure to a dynamic adjustable structure. The telescopic rod members maintain structural integrity during adjustment through guided sliding mechanisms and locking features, providing both stability and adaptability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rod members are pre-configured with guiding features and connection structures that ensure stable assembly and adjustment. The elastic sheets and protruding pins are pre-positioned to provide reliable locking at various extended positions, maintaining structural stability throughout the adjustment range

Inventive Principle:
Principle #10Preliminary action

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

Enables uniform matching of bed frames with mattresses of all specifications by allowing adjustable sizes, reducing the need for multiple frame sizes and increasing versatility.

Implementation Method 1

one end of the protruding pin is coupled to an elastic sheet disposed inside the first rod member; the other end of the protruding pin can protrude outside the first rod member

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11140994B2Bed frame
Publication Date: 2021.10.12 GEXIN XIAMEN SPORTS EQUIP
  • US11140994B2 patent drawing
  • US11140994B2 patent drawing
  • US11140994B2 patent drawing

AI summary

A bed frame includes two first supports located on two sides of the bed frame, wherein a second support is provided between the two first supports, two ends of the second support are coupled to the two first supports, the first support includes a first rod member and a second rod member that are relatively movable, and the second rod member is sleeved on the outer periphery of the first rod member; and the second support includes a third rod member and a fourth rod member that are relatively movable, and the fourth rod member is sleeved on the outer periphery of the third rod member. The length and width of the bed frame can be adjusted, so that the bed frame can be adapted to mattresses of various sizes and specifications.