Wall hugger recliner
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Solution Overview
Problem
Conventional wall hugger recliners face limitations in space efficiency and configuration flexibility, particularly when transitioning from an upright to a horizontal position, as they often require significant space and lack mechanisms to adjust the seat and backrest independently without contacting the wall.
Innovation Solution
The wall hugger recliner incorporates a seat backrest adjustment mechanism with a second mechanical rod assembly and actuator, allowing the seat and backrest to move from an upright to a horizontal position without wall contact, along with a foot support adjustment mechanism that deploys and retracts using a first mechanical rod assembly and actuator, enabling increased comfort and configuration possibilities through adjustable spacing and upholstery enhancement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the recliner uses weight displacement for adjustment, then the structure is simple, but the handling comfort is poor
Solution Approach 1:
The system uses sensors to automatically detect the user's presence and intent, then autonomously adjusts the seat and backrest positions without requiring manual operation, making the complex adjustment mechanism serve itself
Solution Approach 2:
The patent replaces manual weight displacement operation with an automated control system that uses sensors and actuators to perform adjustments, substituting mechanical manual operation with an automated electromechanical system
2Ease of operation
If the foot support is made longer for comfort, then it may contact the floor during deployment, but shortening it prevents floor contact
Solution Approach 1:
The foot support length is made dynamically adjustable rather than fixed, allowing it to extend to maximum length when needed for comfort and retract when approaching the floor, adapting its length based on operational conditions
Solution Approach 2:
The system uses sensors to detect the proximity of the foot support to the floor and provides feedback to the control system, which then automatically retracts the foot support to prevent floor contact while maximizing its length for comfort when safe
3Adaptability or versatility
If the seat is lowered to increase upholstery area, then the foot support clearance is reduced, but raising it increases clearance
Solution Approach 1:
The seat position is made dynamically adjustable, allowing the system to lower the seat to maximize upholstery contact area when needed, and raise it when foot support clearance is required, adapting to different operational requirements
4Area of stationary object
If the recliner maintains compact upright position, then space efficiency is improved, but the transition to horizontal position requires wall contact in conventional designs
Solution Approach 1:
The patent employs dynamic coordination between seat and backrest movement, where the seat moves forward simultaneously with backrest reclination, creating a synchronized motion pattern that maintains the wall clearance throughout the adjustment process
Solution Approach 2:
The control system acts as an intermediary that coordinates the movement of multiple components (seat, backrest, foot support) to achieve the horizontal position without wall contact, mediating between the compact upright position and the extended horizontal position
Data Source
AI summary
A wall hugger recliner with zero space technology includes a frame for placing on a floor, a seat, a backrest, a foot support, and a foot support adjustment mechanism having a first mechanical rod assembly and a first actuator for deploying and retracting the foot support. A seat backrest adjustment mechanism includes a second mechanical rod assembly for adjusting the seat and the backrest with an upright basic position into a horizontal position, wherein the seat backrest adjustment mechanism has a second actuator for adjusting the seat and the backrest.