Modular Seat Fitting Design for Simplified Assembly and Adaptation
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Solution Overview
Problem
Existing seat fittings are complex in design and assembly, requiring pre-determination of configuration and assembly sequence, with motorized adjustments that are cumbersome and lack variability for adaptation.
Innovation Solution
A modular seat fitting design featuring a pre-assembled basic unit with a drive shaft connected to a linear drive, allowing for easy assembly and adaptation of components like the back part and foot part, with the ability to add or replace modules without disassembling the base unit, and upholstery integrated during pre-assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fully preassembled seat fitting with motorized adjustment is used, then the adjustment function is complete, but the structure and assembly become complex
Solution Approach 1:
The seat fitting is divided into modular components: a base unit containing the linear drive and drive shaft, and separate adjustable components (foot part, back part) that can be independently attached and configured. This segmentation allows the adjustment function to be achieved while keeping each module relatively simple, resolving the contradiction between completeness of function and complexity of structure.
2Ease of manufacture
If the seat fitting is fully preassembled with determined configuration, then assembly is complete, but adaptability for subsequent changes is reduced
Solution Approach 1:
The seat fitting employs detachable connections and modular design that allow the configuration to be dynamically changed after initial assembly. Components can be added, removed, or reconfigured without complete disassembly, enabling the system to adapt to changing requirements while maintaining ease of manufacture through standardized interfaces.
3Adaptability or versatility
If a complex design is used for adjusting the back part, then the adjustment capability is achieved, but the overall design complexity increases
Solution Approach 1:
The base unit with linear drive and drive shaft serves as a universal module that can adjust multiple components (foot part, back part) through standardized connections. This multi-functional design achieves comprehensive adjustment capability without requiring separate complex mechanisms for each component, thereby reducing overall design complexity.
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
Facilitates easy assembly and adaptation of seat fittings, reducing assembly time and complexity, enabling variability and customization while minimizing the need for post-assembly upholstery and electrical integration.
Implementation Method 1
at least one linear drive acting on an associated drive shaft for pivoting a component or assembly of the seat fitting, such as a foot part, back part or stand-up aid
Data Source
Figure 1
Figure 2~2a
Figure 3a~3b
AI summary
The invention relates to a seat fitting for seating furniture (1), comprising a base frame (21), a sliding frame (22) which is arranged in a movable manner relative to the base frame (21), and at least one linear drive (6, 62, 63, 64) which acts on a paired drive shaft (5, 51, 52, 53) in order to move a component or an assembly of the seat fitting (3), such as a foot part (41), a backrest part (42), or a stand-up aid (43), back and forth between an extended position and a retracted position relative to the base frame (21) and/or the sliding frame (22). The aim of the invention is to allow a variable design and a retroactively simple adaptation on demand. This is achieved in that the base frame (21), the sliding frame (22), the drive shaft (5), and the linear drive (6) form a functional base unit (2) which can be assembled in a modular manner so as to form a complete seat fitting (3) with a foot part (41), a backrest part (42), a stand-up aid (43), and/or a seat frame (44) provided for the sliding frame (22).