Electrically motorised adjustable support device
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Solution Overview
Problem
Existing electrically motorized adjustable support devices for furniture cushions, such as mattresses, often have exposed components and complex structures, which can result in a bulky and aesthetically unpleasing design, while also being costly and prone to torsional issues during adjustment.
Innovation Solution
The support device features a compact design with a 90° angular arrangement of the driven and translation axes, allowing the electric motorized drive to be housed within the first support part, using pushers connected to both support parts to pivotally adjust them, and incorporates a spindle drive with a threaded spindle and lever transmission for force redirection, ensuring a robust and cost-effective structure with minimal exposed components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electrically motorised drive device components are exposed on the support structure, then the adjustment functionality is accessible, but the aesthetic appearance deteriorates and the overall height increases
Solution Approach 1:
The patent integrates the electrically motorised drive device components within the hollow longitudinal members of the support structure. The driven member moves along a driven axis that is angularly arranged (90°) relative to the translation axis of the pusher, allowing all adjustment components to be nested inside the support structure rather than exposed on the outside. This resolves the contradiction by maintaining aesthetic appearance while preserving adjustment functionality.
2Reliability
If multiple components are used for electrically motorised adjustment, then the adjustment functionality is reliable, but the device complexity and cost increase
Solution Approach 1:
The patent combines the driven member and the pusher into a integrated adjustment mechanism. The driven member, which moves along the driven axis, is directly coupled to the pusher that moves along the translation axis, eliminating the need for separate transmission components. This merging of functions maintains adjustment reliability while reducing device complexity and cost.
3Device complexity
If the support device is designed with high overall height, then the adjustment mechanism has sufficient space, but the device becomes unsuitable for retrofitting low-height beds
Solution Approach 1:
The patent utilizes the angular arrangement (90°) between the driven axis and the translation axis to reorient the adjustment mechanism in a different spatial dimension. Instead of extending the adjustment mechanism in the vertical direction (increasing height), the driven axis is arranged horizontally within the hollow longitudinal members, allowing sufficient adjustment space without increasing the overall height of the support device. This enables retrofitting of low-height beds while maintaining adequate adjustment mechanism space.
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 configuration results in a compact, aesthetically pleasing, and cost-effective support device with reduced torsional stress, suitable for retrofitting beds with low overall height, enabling efficient adjustment of support parts relative to each other while maintaining a simple and robust structure.
Implementation Method 1
The support device features a compact design with a 90° angular arrangement of the driven and translation axes, allowing the electric motorized drive to be housed within the first support part, using pushers connected to both support parts to pivotally adjust them, and incorporates a spindle drive with a threaded spindle and lever transmission for force redirection
Implementation Method 2
incorporates a spindle drive with a threaded spindle and lever transmission for force redirection, ensuring a robust and cost-effective structure
Data Source
AI summary
The electrically motorised adjustable support device for supporting a cushion of a sitting and/or lying furniture, in particular a mattress of a bed, comprises a first support part and a second support part for supporting the cushion, wherein the support parts are pivotably adjustable relative to each other. An electrically motorised drive device for adjusting the support parts relative to each other comprises at least one electric motor and at least one driven member movable translationally along a driven axis with at least one mechanical coupling element for adjust-technical coupling of the or each driven member to a support part to be adjusted. According to the invention, at least one pusher is arranged movably along a translation axis at or in the first support part, wherein the pusher is operatively connected to the electrically motorised drive device on the one hand and to the second support part on the other hand, such that the support parts are adjusted relative to each other during a translational movement of the pusher, wherein the driven axis and the translation axis are arranged angularly to each other, in particular at an angle of 90° or approximately 90°.