Adjustable furniture for a chair for a chair for a chair and method for determining the dimensions of an item of furniture for a chair
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Solution Overview
Problem
Existing adjustable seating furniture, particularly armchairs, face issues with high production costs due to integration of electric motors and control elements, require power connections posing tripping hazards, and offer complex customer choice with multiple models, while alternative solutions like additional cushions provide unsatisfactory results.
Innovation Solution
An adjustable trial seating furniture with independent mechanisms for seat height and depth adjustment, controlled via a remote, allowing customers to select optimal settings without getting up, with options for recording and reproducing these settings for a custom-made chair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electric motors and control elements are integrated into seating furniture to enable adjustment, then adjustability and comfort are improved, but production cost and device complexity increase
Solution Approach 1:
The patent divides the seating furniture into modular components: an adjustable base unit with electric motors and a separate upper section. This segmentation allows the complex adjustable mechanism to be produced as a standardized module, reducing overall production complexity while maintaining adjustability.
Solution Approach 2:
The adjustable base unit is designed as a universal component that can be applied to various seating furniture types (chairs, stools, benches). This multi-functionality amortizes the production complexity across different product lines, making the complex adjustment mechanism more economically viable.
2Adaptability or versatility
If electric motors are integrated into seating furniture for adjustment, then adjustability is improved, but cost increases
Solution Approach 1:
By segmenting the adjustable mechanism into a separate base unit, the patent enables standardized mass production of this complex component, reducing per-unit costs through economies of scale while maintaining full adjustability features.
Solution Approach 2:
The patent offers different adjustment ranges and motor power levels as configurable parameters, allowing manufacturers to optimize cost by selecting appropriate specification levels rather than over-engineering all products with maximum capabilities.
3Adaptability or versatility
If power connections are installed in freestanding recliners for electric adjustment, then adjustability is improved, but safety hazards and cleaning complexity increase
Solution Approach 1:
The patent extracts the power connection requirement by using battery-powered or wireless motor units in the adjustable base, eliminating the need for visible floor cables and associated tripping hazards while maintaining electric adjustability.
Solution Approach 2:
The patent introduces wireless power transmission or removable battery packs as an intermediary solution, allowing electric motors to operate without permanent floor wiring, thus eliminating cable-related safety hazards.
4Adaptability or versatility
If multiple versions of seating models with different dimensions are offered, then customization is improved, but customer choice complexity and inventory requirements increase
Solution Approach 1:
The patent replaces static dimensional variations with a dynamic adjustment mechanism that allows the same base model to adapt to different user needs through electric adjustment, reducing the number of fixed versions needed while maintaining customization.
Solution Approach 2:
Instead of offering multiple fixed-dimensional models, the patent enables continuous parameter adjustment within a single model family, allowing customers to find their optimal configuration without facing complex choices between numerous discrete versions.
Data Source
Figure 1
Figure 2a~2d
Figure 3
AI summary
The invention relates to a trial seating piece, preferably an armchair, comprising a seating area 13, a backrest 15, a control system 17, a first electric drive 25 for adjusting the seat height, and a second electric drive 27 for adjusting the seat depth. According to the invention, the control system is designed to adjust the seat height in predetermined increments and to adjust the seat depth in predetermined increments. The values for the seat height and seat depth obtained with the trial seating piece are used to determine and, if necessary, manufacture a suitable armchair for the user.