Width-Adjustable Foldable Bed Frame to Reduce Transport Dimension

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Solution Overview

Problem

Existing electric beds have an unchangeable width, leading to increased dimensions and transport costs when folded, particularly for network-based sales.

Innovation Solution

A width-adjustable foldable bed design featuring a support unit, main bed frame unit, lateral bed frame units, and a driving unit, allowing the bed to adjust width by folding and detaching components, reducing overall dimensions for transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the bed is designed with fixed width to maintain structural stability, then the bed frame strength is improved, but the transport dimension increases and transport cost rises

Engineering Contradiction:
Improvebed frame strengthVSAvoidtransport dimension
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The bed frame is divided into modular components including a main bed frame unit and detachable lateral bed frame units. This segmentation allows the lateral units to be removed before transport, reducing volume while maintaining structural integrity during use

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bed frame incorporates pivotable connections that allow the main bed frame unit to be folded from a flat state to a stacked state. This dynamic folding mechanism reduces the transport dimension without compromising the strength when assembled in use

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If the bed is made foldable to reduce transport dimension, then the transport cost is reduced, but the device complexity increases

Engineering Contradiction:
Improvetransport dimensionVSAvoidbed frame structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The bed frame is segmented into standardized modular units with consistent connection interfaces. This modularity simplifies the folding mechanism by using repeatable connection and disconnection operations, reducing the perceived complexity despite the foldable design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The folding mechanism stacks the first bed frame subunit on top of the second bed frame subunit, creating a compact nested configuration for transport. This nesting approach minimizes volume while using simple pivotable connections rather than complex mechanical systems

Inventive Principle:
Principle #7Nested doll (Nesting)

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 effectively reduces transport costs by minimizing package dimensions through adjustable width and detachable components, maintaining structural strength and weight efficiency.

Implementation Method 1

The second bed frame subunit is pivotable relative to the first bed frame subunit to fold the main bed frame unit from a bed flat state, where the first bed frame subunit and the second bed frame subunit are arranged in a lengthwise direction, to a bed folded state, where the first bed frame subunit is stacked on top of the second bed frame subunit

Methodology Applied
Scientific EffectPivoting: Hinge

Data Source

PatentUS12599245B2Width-adjustable foldable bed
Publication Date: 2026.04.14 ULIFE HEALTHCARE
  • US12599245B2 patent drawing
  • US12599245B2 patent drawing
  • US12599245B2 patent drawing

AI summary

A width-adjustable foldable bed includes a main bed frame unit that includes a first bed frame subunit and a second bed frame subunit. The second bed frame subunit is pivotable relative to the first bed frame subunit to fold the main bed frame unit from a bed flat state, where the first bed frame subunit and the second bed frame subunit are arranged in a lengthwise direction, to a bed folded state, where the first bed frame subunit is stacked on top of the second bed frame subunit. Two lateral bed frame units are connected to two lateral sides of the first bed frame subunit and the second bed frame subunit. A backrest actuating device is connected to the first bed frame subunit, and is operable for driving the first bed frame subunit to switch between a first flat state and a first bent state.