Assembly for converting a piece of furniture from a sitting position to a lying position
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Solution Overview
Problem
Existing furniture conversion systems from a sitting to a lying position lack an intermediate relaxing position and stability during transformation, especially when accommodating multiple users, and often require mechanical synchronizers for motor operation.
Innovation Solution
The assembly features two mechanisms with motors acting through intermediate elements on the sliding seat, including lifting mechanisms with levers, rollers, and a C-profile bracket system that allows for an intermediate relaxation position and a final lying position, utilizing support rollers for stability and synchronization without mechanical synchronizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a centrally mounted motor with two mechanisms is used to convert furniture from sitting to lying position, then the furniture can be transformed into a relaxing position, but the system lacks an intermediate relaxation position and stability during transformation
Solution Approach 1:
The patent divides the furniture conversion system into two independent mechanisms (right and left) with separate motors, allowing each side to operate independently. This segmentation enables intermediate relaxation positions where the seat can be extended horizontally while the backrest remains at various angles, providing stable positions during transformation that accommodate multiple users comfortably
Solution Approach 2:
The patent introduces intermediate elements including a movable bracket with pin and C-profile, support rollers, and a connector with through-groove that act as mediators between the motor and the seat mechanism. These intermediaries provide stability during transformation by distributing loads and enabling controlled movement through the channel section of the guide, preventing furniture tilting while accommodating multiple users
2Area of moving object
If the seat is extended horizontally to create a relaxation position, then a large surface area is provided for resting, but the furniture may tilt backwards due to increased pressure on the backrest
Solution Approach 1:
The patent employs support rollers that act as counterbalancing elements to prevent furniture tilting backwards when the seat is extended horizontally. These rollers, located in the vicinity of the lift lever, provide stabilizing support that counteracts the increased pressure on the backrest, enabling the creation of a large resting surface area while maintaining furniture stability even when loaded by multiple users
Solution Approach 2:
The movable bracket with pin and C-profile serves as an intermediary element that connects the motor carriage to the seat mechanism. This bracket with its rollers moving in the guide's channel section provides controlled movement and stability, allowing the seat to extend horizontally to create a large resting surface while preventing furniture tilting through the stabilizing action of the support rollers
3Ease of operation
If motors are placed in each mechanism for independent control, then synchronized operation is achieved, but the device complexity increases
Solution Approach 1:
The patent places motors in each mechanism (right and left) for independent control, achieving synchronized operation through the segmentation of the drive system. This allows each side to be controlled independently yet work together harmoniously, providing ease of operation with synchronized motor control while managing device complexity through modular design
Solution Approach 2:
The patent implements self-service through the movable bracket with pin and C-profile that automatically guides the motor carriage through the channel section of the guide. This self-guiding mechanism provides synchronized operation without requiring complex external synchronization systems, achieving ease of operation while keeping device complexity manageable through automatic self-alignment and control
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 comfortable rest and sleeping positions for two people with a large surface area, prevents furniture tilting, and allows for seamless operation with synchronized motor control, suitable for high-leg furniture designs.
Implementation Method 1
Each bracket has at least one roller, preferably two rollers, rotatably mounted to the vertical part of the angle bar, the rollers being located in the channel section of the guide
Implementation Method 2
The use of supporting rollers is desirable in the folded furniture and during its transition to the relaxation function, as it prevents the furniture from tilting backwards as a result of increased pressure on the furniture backrest
Implementation Method 3
The motor has a retractable piston with a mounted handle also attached to the movable seat, which is driven by the motor through a set of rollers or sliders moving in a guide
Data Source
AI summary
An assembly for transforming a piece of furniture from a sitting position to a lying position according to the invention, having two mechanisms placed in the furniture box, and a motor acting through intermediate elements on the sliding seat of the furniture, and each of the mechanisms has a lift, which is made of a fastening slat fastened to a fixed element of furniture, the rear arm articulated at the lower end with the fastening slat and the upper end with the angle slat, and the front arm articulated at the bottom end with the fastening slat and the upper end with the angle slat, the angle slat of each lift having holes for fastening the seat. The assembly allows for obtaining an intermediate position during the transformation of the furniture.