Seat chassis
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Solution Overview
Problem
Existing seating furniture chassis are not designed to be compact while effectively integrating a drive mechanism for adjusting the backrest and seat frames, which compromises both space efficiency and aesthetic appeal.
Innovation Solution
A seating furniture chassis design that incorporates a drive mechanism beneath the seat frame, translating the seat frame during backrest pivoting, with a compact arrangement that minimizes visible installation space and enhances aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a drive mechanism is integrated into the seating furniture chassis, then the backrest and seat frames can be adjusted automatically, but the installation space and visible area increase
Solution Approach 1:
The drive mechanism is merged with the existing structural elements of the seating furniture chassis. The drive means is integrated into the connection between the seat frame and backrest frame, sharing space with the mechanical linkage components. This combining approach allows automatic adjustment functionality without requiring separate dedicated space for the drive mechanism.
Solution Approach 2:
The drive mechanism components are nested within the existing structural framework. The translation means is positioned within the triangular area formed by the connection points, and the drive means is arranged beneath the seat frame in a nested configuration that utilizes unused space within the overall chassis structure.
2Area of stationary object
If the drive means is arranged in a compact location, then space utilization is improved, but accessibility for maintenance and repair becomes more difficult
Solution Approach 1:
The patent introduces accessible openings or access points in the upholstery or frame structure that serve as intermediaries between the compact drive mechanism location and the exterior. These access points allow maintenance personnel to reach the drive means for servicing while keeping the mechanism compact and integrated within the furniture structure.
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
The solution achieves a compact, aesthetically pleasing seating furniture chassis that efficiently adjusts the backrest and seat frames, optimizing space utilization and maintaining a clean appearance.
Implementation Method 1
The drive means is designed to trigger a translation of the translation means. The translation is converted into a pivoting movement of the backrest frame about the pivot axis.
Implementation Method 2
the guide elements can be roller-shaped. In the context of this description, this is understood in particular to mean that the guide elements roll on the guide means.
Data Source
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AI summary
The present invention relates to a seat chassis (100), comprising a seat surface frame (101), a backrest frame (102), two armrests (103) and a drive means (200). The backrest frame (102) is pivotable about a virtual pivot axis, the pivot axis being defined by two pivot points (104), and the backrest frame (102) being fastened to the pivot points (104) on the armrests (103). The drive means (200) is connected via a translation means (201) to the backrest frame (102), the drive means (200) being designed to trigger a translation of the translation means (201), the translation being converted into a pivoting movement of the backrest frame (102) about the pivot axis. The backrest frame (102) is connected below the pivot point (104) to the seat surface frame (101), so that during the pivoting movement the seat surface frame (101) is moved translationally. The invention is characterised in that the drive means (200) is arranged below a first lateral edge region of the seat surface frame (101).