Train Seat Support Structure with Displaceable Element
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Solution Overview
Problem
Existing support structures for vehicle seats in vehicles, such as train seats, lack adjustability to enhance seating comfort and do not allow for easy maintenance or replacement of components, as they are typically fixed in position.
Innovation Solution
A support structure with a first stationary element attached to the wall and a second movable element that can be displaced relative to the first, allowing for adjustable inclination of the seat and backrest, and facilitating easy replacement of components by using guide rails and screw connection elements for secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the support structure is made fixed and rigid, then structural stability is improved, but seat adjustability deteriorates
Solution Approach 1:
The support structure is divided into multiple segments: a fixed first support element attached to the wall, and a movable second support element that can be displaced relative to the first. This segmentation allows the overall structure to maintain stability while enabling local adjustability through the movable segment.
Solution Approach 2:
The second support element is designed to be displaceable relative to the first support element, transforming the support structure from a completely static system to a dynamic one that can adapt its configuration. This allows the seat to change inclination angles while the first support element remains fixed to maintain structural stability.
2Ease of manufacture
If the support structure is made fixed, then manufacturing simplicity is improved, but maintenance difficulty worsens
Solution Approach 1:
By dividing the support structure into separable first and second support elements with standardized connection interfaces (guide rails and screw connection elements), the design maintains manufacturing simplicity through modular components while enabling easy maintenance by allowing the second element to be detached and replaced independently.
Solution Approach 2:
The guide rails and screw connection elements are pre-designed with standardized interfaces that facilitate quick assembly and disassembly. This preliminary design of connection mechanisms allows maintenance personnel to quickly replace defective components without complex tools or procedures, addressing the maintenance difficulty while keeping manufacturing straightforward.
3Ease of operation
If the second support element is made movable relative to the first, then seat comfort is improved, but structural complexity worsens
Solution Approach 1:
The movable functionality is isolated to the second support element, which is segmented from the fixed first support element. This segmentation allows the complexity of movement mechanisms to be contained in a separate module, simplifying the overall design while still providing seat inclination adjustment for comfort.
Solution Approach 2:
The guide rails are designed with curved geometries that guide the second support element's movement path, enabling smooth inclination changes. The curved design simplifies the mechanical guidance system compared to complex actuation mechanisms, achieving seat comfort through geometry rather than complex mechanical systems.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
Supporting structure for supporting at least one vehicle seat of a vehicle, in particular a train seat, and for attaching the at least one vehicle seat to a wall or floor of a vehicle cabin, wherein at least one vehicle seat can be arranged on the supporting structure in a longitudinal direction, wherein the supporting structure has a first supporting element which can be attached to the wall and a second supporting element which can be connected to the vehicle seat and to the first supporting element, wherein the second supporting element is displaceable relative to the first supporting element.