Compact Seating Chassis With Nested Lift Drive and Vibration Damping
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Solution Overview
Problem
Existing seating furniture chassis with lifting means require a large amount of installation space, making them bulky and unsuitable for seating furniture items with limited space.
Innovation Solution
A compact seating furniture chassis design featuring a drive means, gear mechanism, and threaded spindle lifting means, where the drive shaft is connected via the gear mechanism to allow for both raising and lowering of the seat face, with the drive means mounted in a floating manner to absorb vibrations and improve user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional lifting means are used in seating furniture chassis, then the lifting function is achieved, but the installation space required becomes large and the chassis becomes bulky
Solution Approach 1:
The patent integrates the drive means directly into the lifting means structure, with the drive shaft and gear mechanism nested within the threaded spindle assembly. This nesting arrangement eliminates separate mounting spaces for drive components, achieving compact integration while maintaining the complete lifting function.
Solution Approach 2:
The patent combines the drive means and lifting means into a single integrated assembly where the drive shaft is directly connected to the threaded spindle through gear mechanisms. This merging of previously separate components reduces the overall volume and installation space while preserving both the driving and lifting functions.
2Stability of the object's composition
If the drive means is rigidly mounted, then structural stability is improved, but vibrations are transmitted to other components reducing user comfort
Solution Approach 1:
The patent introduces a floating mounting arrangement as an intermediary between the drive means and the chassis structure. This intermediary element decouples the rigid connection, allowing vibrations to be absorbed and isolated while maintaining structural stability for load-bearing functions.
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 the use of compact seating furniture chassis in small spaces while maintaining user comfort by minimizing the transmission of vibrations and optimizing the arrangement of components for a compact overall design.
Implementation Method 1
the lifting means can be configured as threaded spindles
Implementation Method 2
the drive means can be mounted in a floating manner. As a result, vibrations which are caused by the drive means are absorbed and are transmitted to a less pronounced extent or even not at all to the remaining components
Data Source
AI summary
A seating furniture chassis including a drive mechanism, a drive shaft, a gear mechanism and a lifting mechanism. The drive mechanism sets the drive shaft in rotation, while the lifting mechanism raises and lowers a seat face. The drive shaft is connected to the lifting mechanism via the gear mechanism. Rotation of the drive shaft in a first direction triggers raising of the seat face, while rotation of the drive shaft in a second direction triggers lowering of the seat face.