Sofa with Turnable Backrest for Dual-Purpose Table Surface
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Solution Overview
Problem
The existing design of sofas requires users to shift from a comfortable position to stoop or stand when accessing items from a nearby table, due to the necessary distance between the sofa and the table, resulting in a poor user experience.
Innovation Solution
A sofa with a turnable backrest mechanism that allows the backrest to flatten and transform into a table surface, enabling users to maintain a comfortable sitting posture while accessing items, and optionally eliminating the need for a separate table, thus optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate table is equipped for item storage and access, then users can place and retrieve items, but space is consumed that could be used for legroom or intensive furniture arrangement in tight spaces
Solution Approach 1:
The backrest structure is designed to perform multiple functions: serving as a back support in its inclined position and as a table surface for item storage and access when flattened. This multi-functionality eliminates the need for a separate table, thereby saving space for legroom and allowing more intensive furniture arrangement in tight spaces.
Solution Approach 2:
The patent combines the table function within the existing backrest structure, eliminating the need for a separate table object. This merging of functions reduces the total space occupied by furniture while maintaining the capability for item storage and access.
2Ease of operation
If the backrest is flattened to form a table surface, then users can access items while maintaining comfortable sitting posture, but the structural complexity increases with the extension mechanism
Solution Approach 1:
The extension mechanism employs a rotation-based transformation that allows the backrest to dynamically change between inclined and horizontal positions. This dynamic design enables the complex function of table formation using a relatively simple rotational movement rather than more complex mechanical assemblies.
Solution Approach 2:
The same backrest structure serves dual purposes as both a back support and a table surface, eliminating the need for separate table mechanisms. This multi-functionality reduces overall system complexity by consolidating functions into a single transformable component.
Data Source
AI summary
The present application relates to sofa with a turnable backrest, including a sofa seat frame, a backrest body, and an extension mechanism, wherein the backrest body is connected to the sofa seat frame through the extension mechanism; the extension mechanism is configured to turn and flatten the backrest body from a backrest position of the sofa seat frame to a position above a sitting position, and configured to turn the backrest body back to the backrest position.