Seating
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Solution Overview
Problem
Conventional seating furniture that converts from a sitting to a reclining position requires significant space due to the use of scissor-type frames, which limits its space-saving and comfort potential.
Innovation Solution
A seating furniture design featuring a multi-part frame structure with a hingedly coupled foot and seat frame section, connected via a length-adjustable coupling unit, allowing for a comfortable reclining position without the need for extensive space, achieved through a pivotable base frame section and a stable, adjustable footrest mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a scissor-type frame is used to extend the footrest from sitting to reclining position, then the reclining function is achieved, but the space required for full extension increases significantly
Solution Approach 1:
The footrest section is nested within the seat structure when in the sitting position, allowing it to be stored compactly. When transitioning to reclining, the footrest extends outward in a controlled manner rather than requiring full scissor-type expansion, effectively nesting the extended position within the overall furniture footprint.
Solution Approach 2:
The seating furniture employs dynamic positioning mechanisms that allow the footrest and seat shell to transition smoothly between sitting and reclining positions. The pivotable base frame section and adjustable coupling unit enable the footrest to move from a retracted state to an extended state without requiring excessive space, adapting the structure to different usage states.
2Ease of operation
If the seat shell is lowered by shortening the coupling unit to transition to relaxed position, then comfort is improved, but the structural complexity increases
Solution Approach 1:
The frame structure is divided into distinct segments: the seat frame section, the base frame section, and the footrest section, connected through hinges and a coupling unit. This segmentation allows each part to move independently and contribute to the overall transition from sitting to reclining position, achieving comfort through coordinated movement of simplified individual components.
Solution Approach 2:
The coupling unit acts as an intermediary mechanism between the seat shell and the receiving unit, controlling the lowering motion. By mediating the connection and providing a controlled adjustment mechanism, it enables smooth transitions to relaxed positions without requiring complex direct connections between all structural elements.
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
Enables a space-efficient and comfortable transition between sitting and reclining positions, with enhanced stability and ease of use, including motor-controlled adjustments for user convenience.
Implementation Method 1
Lowering the seat shell exerts a tensile force on the base frame section. This tensile force is sufficiently large to pivot the base frame section from its original, folded position.
Implementation Method 2
the frame structure has at least one foot frame section and a seat frame section, wherein both frame sections are hingedly coupled to one another
Implementation Method 3
This compressive force pivots the foot frame section from the unfolded, relaxed position back to its original base position.
Data Source
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AI summary
The invention relates to a piece of seating furniture.