Chaise Longue Backrest Sliding Linkage for Wall-Free Reclining
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Solution Overview
Problem
Multifunctional furniture, such as recamiers or chaise longues, often face issues where the back part cannot be adjusted to a horizontal lying position without compressing individual molded parts, leading to both aesthetic and durability problems due to unnecessary loads.
Innovation Solution
A combined turning and sliding movement mechanism for the back part, utilizing a slotted guide and sliding block, allows for horizontal alignment without compressing molded parts, coupled with adjustable foot and seat parts that create space for the back part, enabling a 'wall-free' reclining position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the back part is adjusted to a horizontal lying position using conventional mechanisms, then the reclining function is achieved, but individual molded parts are compressed and subjected to unnecessary loads
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the back part performs a combined turning and sliding movement rather than simple rotation. The slotted guide (38) allows the back part to slide forward while pivoting, dynamically adapting the movement path to prevent compression of molded parts during the transition to horizontal position.
Solution Approach 2:
The slotted guide (38) acts as an intermediary element between the back part and the base. It mediates the adjustment movement by providing a guided path that combines sliding and turning motions, thereby preventing direct compression of molded parts while achieving the desired horizontal position.
2Ease of operation
If the back part is adjusted horizontally, then the lying position is achieved, but optical appearance deteriorates due to compression of molded parts
Solution Approach 1:
The dynamic combined movement mechanism ensures that molded parts are not compressed during adjustment, preserving their original shape and appearance. The slotted guide enables a movement path that avoids direct pressure on upholstery and molded components.
3Ease of operation
If the back part is adjusted horizontally, then the reclining function is improved, but wear and tear on molded parts increases
Solution Approach 1:
The slotted guide (38) serves as a protective intermediary that guides the back part's movement in a way that prevents direct contact and compression between moving components and molded parts. This reduces friction and wear, thereby improving the durability and reliability of molded components over time.
4Adaptability or versatility
If the back part is pushed forward during adjustment, then wall-free positioning is achieved, but the adjustment mechanism becomes more complex
Solution Approach 1:
The patent merges two movements (sliding and turning) into a single integrated adjustment mechanism. The slotted guide combines both functions, allowing the back part to slide forward and pivot simultaneously, thereby achieving wall-free positioning without requiring separate complex mechanisms for each movement type.
Data Source
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AI summary
The invention relates to multifunctional furniture, in particular a recamier or chaise longue, which can be adjusted between a sitting position and a lying position, comprising a base (10) and a foot part (12), a seat part (14) and a back part (16) which are attached to the base are attached, wherein an adjustment movement of the back part (16) comprises a combined rotating and sliding movement, and wherein the back part (16) is aligned substantially horizontally in the lying position with the base (10) standing on the floor.