Adjustable bed

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Solution Overview

Problem

Conventional beds lack adjustability to accommodate different body positions and sizes, leading to discomfort and inefficient assembly.

Innovation Solution

An adjustable bed with a lumbar supporting mechanism and smooth transitional profile, featuring lifting assemblies and actuators that allow for adjustable platforms and rails, enabling customizable bed sizes and enhanced comfort through controlled positional adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional fixed-size bed is used, then the structure is simple and easy to manufacture, but it cannot accommodate different body positions and sizes leading to discomfort

Engineering Contradiction:

Improveadjustability to different body positions and sizesVSAvoidbed structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The bed is divided into multiple independent segments including a head section, a foot section, and a lumbar support section. Each segment can be independently adjusted to different positions and angles, allowing the bed to accommodate various body positions and sizes while maintaining manageable structural complexity through modular design

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The bed structure transitions from a static fixed configuration to a dynamic adjustable system. The lifting assemblies with actuators enable each bed segment to move between different positions, transforming the bed from a rigid structure to an adaptable system that can change its configuration based on user needs

Inventive Principle:

Principle #15Dynamics

2Productivity

If a fixed-size bed structure is used, then manufacturing is simple, but assembly efficiency is reduced and requires professionals to install

Engineering Contradiction:

Improveassembly efficiencyVSAvoidmanufacturing simplicity

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The bed is constructed from modular segments that can be manufactured separately and assembled together. The lifting assemblies, platforms, and support structures are designed as discrete units with standardized connection interfaces, enabling efficient assembly while maintaining manufacturing simplicity through repeated use of standard components

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lifting assemblies serve multiple functions: they provide structural support, enable position adjustment, and facilitate easy assembly and disassembly. The standardized actuator mechanisms can be used across different bed configurations, reducing manufacturing complexity while improving assembly efficiency through universal components

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If lifting assemblies are added to enable position adjustment, then comfort is improved, but abdominal compression is caused during lifting

Engineering Contradiction:

Improveuser comfortVSAvoidabdominal compression during lifting

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The lumbar support section is specifically designed with a smooth transitional profile that provides localized support to the lumbar region. This targeted support in the critical lumbar area prevents abdominal compression by distributing lifting forces away from the abdomen while maintaining comfort through enhanced lumbar support

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The lumbar support platform features a curved or contoured surface that matches the natural curvature of the lumbar spine. This spherical or curved geometry provides ergonomic support that accommodates the body's natural shape, improving comfort while preventing harmful compression during position changes

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Adaptability or versatility

If multiple platforms and lifting assemblies are used for adjustability, then body position accommodation is improved, but the structure becomes more complex

Engineering Contradiction:

Improvebody position accommodationVSAvoidnumber of platforms and lifting assemblies

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple lifting assemblies are integrated into a coordinated system where the head section lifter, foot section lifter, and lumbar support lifter work together in unison. The platforms are merged into a unified structure with smooth transitions between sections, reducing overall system complexity while maintaining full adjustability for various body positions

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12376685B2Adjustable bed

Publication Date: 2025.08.05 NISCO CO LTD(JP)

AI summary

An adjustable bed with a smooth transitional profile includes a pair of lifting assemblies each having back lifting arm and a lumbar supporting mechanism coupled with the back lifting arm such that when the back lifting arm is positioned in parallel to a co-plane of the pair of side rails, the seat platform, the top back platform and the lower back platform are aligned in a co-plane, and the adjustable bed is in a plane state; and when the back lifting arm is driven to rotate in the upward or downward rotation direction, the lower back platform has an angle relative to the top back platform, the angle being less than 180° and greater than 90°; and the adjustable bed is in an adjusted state.