Seat Tilting Unit Layout to Eliminate Wobbly Seating
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Solution Overview
Problem
Conventional tilting devices in seating furniture cause the entire seat structure to tilt, resulting in a wobbly sensation for the user.
Innovation Solution
A separate tilting device is positioned above the seat plate, allowing only the seating area to tilt, with options for various tilting movements and configurations, including the use of a tilting seat disk, spring elements, and a cushion or annular hose filled with a flowable medium, to provide a stable and customizable tilting experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tilting device is arranged below the seat plate as in conventional designs, then the entire seat structure can perform tilting movement, but this causes a wobbly sensation for the user
Solution Approach 1:
The tilting device is segmented from the seat plate, forming a separate unit that can be positioned above the seat plate. This segmentation allows the tilting mechanism to be isolated to a specific location, enabling tilting movement only in the seating area while keeping the rest of the seat structure stable, thereby eliminating the wobbly sensation.
Solution Approach 2:
The tilting device is repositioned from below to above the seat plate, changing its spatial dimension and relationship to the seat structure. This dimensional change allows the tilting mechanism to operate independently at the seating level without causing unwanted movement in the entire seat assembly.
2Ease of operation
If the entire seat structure tilts together, then tilting movement is achieved, but user comfort deteriorates due to wobbly sensation
Solution Approach 1:
The tilting functionality is localized to the seating area where the user makes contact with the seat plate. By concentrating the tilting mechanism at this specific location rather than distributing it throughout the entire seat structure, the system maintains local tilting capability while preserving global structural stability and user comfort.
3Object-affected harmful factors
If a separate tilting device unit is arranged above the seat plate, then only the seating area performs tilting movement eliminating wobbly sensation, but device complexity increases
Solution Approach 1:
The tilting mechanism is extracted as a separate, independent unit from the seat plate structure. This extraction allows the tilting function to be implemented as a modular component that can be positioned above the seat plate, simplifying the overall system architecture while eliminating the wobbly sensation by isolating the tilting movement to the seating area only.
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
This design eliminates the wobbly sensation by isolating the tilting movement to the pelvis and hip area, offering improved stability and customizable tilting options without affecting the seat plate's position, enhancing user comfort and flexibility.
Implementation Method 1
on the bottom side of the seat plate a support employing an elastic body is arranged. This elastic body counteracts the tilting movement with an appropriate restoring force.
Implementation Method 2
In the rim area between the tilting seat disk and the seat plate one or several spring elements can be arranged therebetween.
Implementation Method 3
the tilting device is embodied like a cushion filled with flexible contents... an annular hose filled with a flowable medium, in particular air, water, or a gel
Data Source
AI summary
A piece of seating furniture has a seat plate (1) with a lower seat framework (2) arranged on the underside of said seat plate (1). Also provided is a tilting device (4), by means of which the person sitting on the piece of furniture can execute a tilting movement about a point of rotation located in the seat region. The tilting device (4) is formed by a structural unit which is separate from the seat plate (1) and is arranged on the seat plate (1) of the piece of furniture.