Vehicle Seat Frame Screw Connection for Better Load Transfer
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Solution Overview
Problem
Existing vehicle seat mountings in commercial vehicles, such as tractors or lorries, experience unfavorable force transfer through lateral fixings, leading to increased stress on the frame and requiring additional work steps for installation.
Innovation Solution
A vehicle seat design featuring a frame composed of interconnected first and second frame parts, connected via non-positive screw connections and hollow tubes, allowing for efficient force distribution and simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lateral fixings are used to attach additional components to the frame, then the components can be mounted, but forces are exerted on the fixings that must be transferred to the frame in an unfavorable manner, increasing stress on the frame
Solution Approach 1:
The patent transitions from lateral attachment (side mounting) to upper-surface attachment (top mounting) of the additional component on the frame. This dimensional change in attachment location allows forces to be transferred vertically onto the upper surface of the frame part, creating more favorable force distribution and reducing stress concentrations on the frame structure.
Solution Approach 2:
Instead of attaching the additional component laterally to the side of the frame as in conventional designs, the patent inverts the attachment approach by mounting the component on the upper surface of the frame. This inversion of the attachment orientation enables more efficient force transfer directly onto the frame's load-bearing surface, improving mechanical stability.
2Ease of manufacture
If lateral fixings are used to attach additional components to the frame, then the components can be mounted, but fitting the fixings requires an additional work step
Solution Approach 1:
The patent combines the frame structure with integrated attachment features directly on its upper surface, eliminating the need for separate lateral fixings. The additional component is mounted directly onto the frame's upper surface using simplified fastening elements, merging the attachment function into the frame design itself and reducing the number of assembly steps.
Solution Approach 2:
The patent extracts and eliminates the complex lateral fixing mechanism from the design, replacing it with a simplified upper-surface attachment system. By removing the unnecessary lateral fixing components and their associated assembly steps, the overall assembly process is streamlined while maintaining functional integrity.
3Loss of substance
If the frame is constructed with multiple frame parts, then material usage can be optimized, but the frame parts must be securely connected to maintain structural integrity
Solution Approach 1:
The patent divides the frame into multiple modular frame parts (first frame part and second frame part) that can be manufactured separately with optimized material usage. These segmented parts are then connected through the improved upper-surface attachment system, allowing for efficient material distribution while maintaining overall structural integrity through the enhanced connection methodology.
Data Source
AI summary
The present invention relates to a vehicle seat comprising a seat part and a vehicle seat base with a lower part and an upper part which is adjustable in height relative thereto, wherein the upper part has a frame for supporting the seat part or the lower part has a frame for fastening the vehicle seat to a vehicle body, wherein the frame comprises a first frame part and a second frame part which are connected to one another by at least one connecting means, characterised in that the frame comprises a first frame part and a second frame part which are connected to one another by at least one connecting means, wherein the frame comprises a first frame part and a second frame part, which are connected to each other by at least one connecting means, wherein the at least one connecting means attaches an additional component to the frame.