Electromotor adjusting unit for adjusting the inclination of a support part of an item of seating furniture
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Solution Overview
Problem
Existing electromotive adjusting units for seating furniture require significant space in the back section and complex mounting options, making it difficult to retrofit adjustable support sections, especially when space is limited.
Innovation Solution
An electromotive adjusting unit with a motor and transmission unit integrated into the support part itself, using a rotatable output element connected to a mounting bracket that engages positively with the body element, allowing for pivoting of the support part without needing extensive space within the body element, and featuring a reduction gear for torque transmission and a concealed power supply through the mounting brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drive unit is arranged in the body element, then the support part can be adjusted electromotively, but significant space is required in the back section and complex mounting options are needed
Solution Approach 1:
The patent inverts the conventional arrangement by placing the drive unit in the movable support part instead of the fixed body element. This inversion allows the drive mechanism to be mounted on the support part itself, which then connects to the body element via a mounting bracket, thereby eliminating the need for space-consuming integration within the body element while maintaining electromotive adjustment functionality.
Solution Approach 2:
The system is segmented into distinct functional components: the drive unit mounted on the support part, the mounting bracket serving as an interface, and the body element. This segmentation allows the drive unit to be independently positioned on the support part without requiring integration into the body element's internal space, thus resolving the space constraint issue.
2Ease of operation
If the drive unit is arranged in the body element, then electromotive adjustment is achieved, but it becomes difficult to retrofit to existing furniture
Solution Approach 1:
By inverting the mounting arrangement to attach the drive unit to the support part rather than integrating it into the body element, the system becomes suitable for retrofitting. The support part with its integrated drive unit can be mounted onto existing furniture using the mounting bracket, avoiding the need to modify the body element's internal structure.
Solution Approach 2:
The mounting bracket serves multiple functions: it connects the support part to the body element, provides mounting points for the drive unit, and facilitates easy installation and removal. This multi-functionality makes the system universally applicable to various furniture types and simplifies retrofitting processes.
3Volume of moving object
If mounting brackets are used to connect support part and body element, then space requirements are reduced, but torque transmission must be ensured
Solution Approach 1:
The mounting bracket acts as an intermediary component between the support part and the body element. It provides a robust mechanical interface that ensures reliable torque transmission from the drive unit to the body element while maintaining the space-efficient configuration. The bracket's design incorporates features such as toothing or positive locking mechanisms to guarantee sufficient force transmission.
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 independent adjustment of seating furniture support parts with minimal space requirements, facilitating easy retrofitting and reducing manufacturing and storage costs by utilizing a compact design with a synchronized drive mechanism and integrated power supply.
Implementation Method 1
an electromotive adjusting unit for adjusting the inclination of a support part
Implementation Method 2
the motor and transmission unit comprises a support bracket having a first leg, on which at least two intermeshing gearwheels are mounted, which form a reduction gear
Implementation Method 3
The output element engages positively in a corresponding receptacle of the mounting bracket. The required torques can be transmitted well and reliably between the output element and the mounting bracket due to the positive locking, for example achieved by means of toothing.
Data Source
AI summary
An electromotive adjusting device for adjusting the inclination of a seat part of an item of seating furniture includes a mounting bracket for connecting to a body element of the item of seating furniture and a motor and transmission unit embodied as a drive unit. A mounting element secures the seat part of the item of seating furniture. The motor and transmission unit includes a rotatable drive element and is securely fixed to the at least one mounting bracket.