Motorized Support Frame With Bowden Lever for Low Installation Height
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Solution Overview
Problem
Existing adjustable support devices for seating and reclining furniture, such as slatted frames, often have a large installation height and complex designs, which can make them less economical and more difficult to integrate into furniture systems.
Innovation Solution
An adjustable support device using an electric motor with a pivot lever that is pivotably connected to either the support part or the outer frame, actuated by a Bowden cable, allowing for simple and cost-effective adjustment with a minimal installation height, achieved by using only two essential components: the pivot lever and the support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional double drives with separate housings and spindle drives are used, then adjustment functionality is achieved, but installation height increases and design complexity increases
Solution Approach 1:
The patent combines the housing and the adjustment unit into a single integrated component. The adjustment unit is directly accommodated within the housing structure itself, eliminating the need for separate housing and adjustment unit components. This integration significantly reduces the overall installation height while maintaining full adjustment functionality for the support part.
Solution Approach 2:
The patent extracts the essential adjustment functionality from complex traditional mechanisms and implements it through a simplified coupling lever system. The coupling lever is connected in a rotationally fixed manner to the pivot shaft, and the spindle nut presses directly against it, eliminating intermediate components and reducing structural complexity.
2Ease of operation
If traditional double drives with separate housings and spindle drives are used, then adjustment functionality is achieved, but device complexity increases
Solution Approach 1:
The patent merges the housing and adjustment unit into one integrated component, reducing the number of separate parts. The coupling lever mechanism directly connects the spindle nut to the pivot shaft without requiring complex intermediate transmission elements, simplifying the overall device design while maintaining adjustment functionality.
3Length of stationary object
If integrated drive means are accommodated in hollow profiles, then installation height is reduced, but manufacturing complexity increases
Solution Approach 1:
The housing is designed as a hollow profile that directly accommodates the adjustment unit components. The coupling lever and spindle nut are positioned within this hollow structure, integrating the drive mechanism into the existing housing form rather than requiring separate mounting structures. This approach reduces installation height while keeping manufacturing relatively simple.
Data Source
AI summary
An adjustable support device adjustable by an electric motor, for supporting padding of seating or reclining furniture has an outer frame and a base body having at least two support parts. The two support parts are adjustable relative to one another. An adjustment element, which is in drive connection with a drive unit, is associated with at least one of the adjustable support parts. The adjustment element is a pivot lever which is pivotable under the traction effect of a pull cable of a Bowden cable, and the pivot lever is pivotably connected to the associated support part, and is supported on a support situated on the outer frame. Or the pivot lever is pivotably connected to the outer frame, and with its free end forms a support for the support part to be adjusted.