Foldable Bed Frame With Hinged Rotation for Mattress-Free Conversion

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Solution Overview

Problem

Existing space-saving beds require the removal and repositioning of mattresses to convert from a single to a double bed, which is cumbersome and potentially injurious, as they need to be supported on both sides during the transformation.

Innovation Solution

A bed frame design featuring two interconnected frame parts with hinges and rotatable mattress holders, allowing for folding and rotation about parallel axes without removing the mattress, ensuring effortless conversion with minimal height change and maintaining mattress orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the mattress is removed and repositioned to convert from single to double bed, then the bed frame can be reconfigured, but the process becomes cumbersome and potentially injurious

Engineering Contradiction:

Improvebed configuration changeVSAvoidmattress removal and repositioning

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The bed frame is divided into two separable frame parts (first and second frame parts) that can be independently positioned and connected. This segmentation allows the frame parts to be reconfigured relative to each other without requiring movement of the mattress, resolving the contradiction by enabling adaptability through frame segmentation while maintaining ease of operation through fixed mattress position.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The second frame part can be folded onto the first frame part in a nested arrangement, with the second frame part containing or overlapping the first frame part when in the single bed configuration. This nesting allows compact storage and easy transformation between single and double bed configurations without disturbing the mattress.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the top bed frame part is folded to the side, then the single bed converts to double bed, but the support area must be configured for supporting the mattress on both sides

Engineering Contradiction:

Improvesingle to double bed conversionVSAvoidsupport area configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The second frame part is designed with multi-functionality, serving both as a support structure when folded onto the first frame part (single bed mode) and as an independent support surface when positioned adjacent to the first frame part (double bed mode). The holder for the second mattress receiving device is configured to provide universal support regardless of the frame configuration, eliminating the need for separate support area configurations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If the second frame part is folded about the first axis, then the bed configuration changes, but the height change of the second axis must be minimized to reduce effort

Engineering Contradiction:

Improvefolding effortVSAvoidbed configuration change

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The transformation from single to double bed configuration is achieved primarily through horizontal folding motion about the first axis rather than vertical height changes. The second frame part folds horizontally onto or adjacent to the first frame part, minimizing vertical displacement of the second axis and reducing the effort required for configuration changes while maintaining full adaptability between bed types.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 easy and injury-free conversion from single to double bed and vice versa without removing the mattress, reducing effort and maintaining mattress orientation, thus enhancing user convenience and safety.

Implementation Method 1

The connection between the first frame part and the second frame part can advantageously be implemented by at least two hinges, which make the second frame part foldable relative to the first frame part.

Methodology Applied

Scientific EffectHinge mechanism: Hinge

Implementation Method 2

The rotating and/or pivoting movement about the second axis can be implemented, for example, by at least one, particularly two ball bearings, also linear motion ball bearings, which allow rotation about the second axis.

Methodology Applied

Scientific EffectBall bearing rotation: Ball Bearing

Data Source

PatentUS10806270B2Space saving bed

Publication Date: 2020.10.20 GERHARD DANIEL

AI summary

A space saving bed of the kind that can be changed from a single bed into a double bed and vice versa and where performing this change between the single bed and double bed is easy, effortless, and does not require removal of a pad or mattress. The space saving bed includes a first frame part and a second frame part. The first frame part includes a first mattress receiving device and the second frame part includes a second mattress receiving device. The first and second frame parts are hingedly connected together about a first axis and are foldable relative to each other about the first axis. The second mattress receiving device is connected to the second frame part to be rotatable or pivotable about a second axis. The first and second axes are arranged parallel to one another.