Modular Bed with Shared Compression Plane to Reduce Motor Count

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Solution Overview

Problem

Existing bed technologies require multiple motors to achieve adjustable firmness in articulated beds, which is expensive and complex to synchronize, necessitating a need for alternative mechanisms to extend the impact of a single compressing zone to adjacent modules.

Innovation Solution

A bed design comprising a base module with a motor-controlled compression plane that translates height adjustments to side modules through a fixation mechanism, allowing a single motor to control the firmness across multiple modules, reducing the number of motors needed and simplifying synchronization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple motors are used to achieve adjustable firmness in different modules of articulated beds, then the firmness can be adjusted in each module independently, but the cost increases and synchronization becomes complicated

Engineering Contradiction:
Improveadjustable firmness in each moduleVSAvoidnumber of motors and synchronization
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The bed is divided into modular sections (base module and side modules) that can be independently configured. Each module contains springs and compression planes that can be adjusted, but the segmentation allows a single motor in the base module to control multiple modules through the shared compression plane, reducing the total number of motors needed while maintaining independent adjustability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The compression plane serves multiple functions: it is both a structural element that supports the mattress and a control element that transfers compression force from the base module to side modules. This multi-functionality allows a single motor to control firmness across multiple modules, eliminating the need for separate motors in each module.

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

2Device complexity

If a single motor is used to control the base module, then cost is reduced, but the ability to adjust firmness in side modules is lost

Engineering Contradiction:
Improvenumber of motorsVSAvoidfirmness adjustment in side modules
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The compression plane acts as an intermediary element that transfers the mechanical action of the single motor in the base module to the side modules. When the motor compresses the base module's springs, the compression force is transmitted through the shared compression plane to the side modules' springs, enabling indirect control of side module firmness without additional motors.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The compression planes of the base module and side modules are merged into a single continuous structure. This merging allows the compression force generated by one motor to be distributed across multiple modules simultaneously, achieving coordinated firmness adjustment across the entire bed with a single actuator.

Inventive Principle:
Principle #5Merging (Combining)

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

This design achieves smoothly varying firmness in beds with fewer motors, providing economic advantages and efficient firmness adjustment across multiple modules, suitable for both regular and articulated beds.

Implementation Method 1

a motor applying a force on the compression plane to obtain an alteration of the compression level, in springs arranged on or above the compression plane

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

The fixation means allows a rotation of the tail plane relative the compression plane of the base module

Methodology Applied
Scientific EffectHinge mechanism: Hinge

Implementation Method 3

a motion of the compression plane induces a corresponding motion of the first end section, whereby an alteration of the compression level of the base module causes an alteration of the compression level of the side module

Methodology Applied
Scientific EffectMechanical coupling: Mechanical Force

Data Source

PatentEP3355745B1A bed
Publication Date: 2024.04.24 MODILECT AB
  • EP3355745B1 patent drawingFigure 1a~1b
  • EP3355745B1 patent drawingFigure 2a~2b
  • EP3355745B1 patent drawingFigure 3a~3b

AI summary

It is disclosed a bed. The bed comprises at least two modules, a base module 1 and a rigid or articulated side module 4, the base module 1 comprises two plane, a base plane 2 and a compression plane 3 whose relative positions may be altered to obtain an alteration of the compression level of the compression plane. The side module 4 of the bed comprises two planes, a side module base plane 5 and a tail plane 6. The tail plane 6 comprises two end sections, a first end section 7 and a second end section 8, the first end section 7 of the tail plane is attached to the compression plane 3 of the base module 1 by means of a fixation means 11. The fixation means 11 allows a rotation of the tail plane 6 relative the compression plane 3 of the base module, and is further adapted to fixate the first end section 7 of the tail plane 6 to the compression plane 3 of the base module in such a way that a motion of the compression plane 3 induces the same motion of the first end section 7, whereby an alteration of the compression level of the compression plane, caused by a change in the relative position between the base plane 2 and compression plane 3, causes an alteration of the compression level of the side module 4.