Vehicle Seat Backrest Anchor Structure for Child Seat Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle seat designs for child seats require multiple components for connecting and supporting the cushion, which increases costs and complexity, and the second retaining element is often positioned too low, making it difficult to access and unstable.
Innovation Solution
A vehicle seat design where the second retaining element, integrated into the backrest frame, serves both to connect the retaining belt and support the cushion, using a configuration of wires that reduces component count, stabilizes the element, and positions it for easier access in the middle of the backrest, subjected only to tensile stress for enhanced strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate solutions are used for connecting the retaining belt and supporting the cushion, then the connection function and support function are independently optimized, but the number of components increases and costs increase
Solution Approach 1:
The patent combines the connection function (retaining belt attachment) and support function (cushion support) into a single integrated second retaining element. This element is formed as part of the wire structure that already exists in the backrest frame, eliminating the need for separate components and reducing overall device complexity while maintaining both functions reliably
Solution Approach 2:
The second retaining element is designed to perform multiple functions simultaneously: it serves as an attachment point for the retaining belt (connection function) and as a support structure for the cushion (support function). This multi-functionality reduces the total number of components needed in the system
2Length of stationary object
If the second retaining element is made separately from a long wire, then it can be positioned low near the crossmember, but it becomes very unstable in the direction of travel
Solution Approach 1:
The second retaining element is merged with the wire structure that extends between the lower limbs of the backrest frame. This integration provides inherent stability along the direction of travel, as the wire structure is already designed to withstand such forces, eliminating the instability problem of separate low-positioned elements
3Length of stationary object
If the second retaining element is positioned low in the vicinity of the crossmember, then it is close to the seat structure, but it is difficult to reach and access
Solution Approach 1:
The second retaining element is repositioned from a low horizontal position near the crossmember to a vertical position in the middle of the backrest. This dimensional change in positioning makes the element easily accessible from above while maintaining its structural integration with the wire framework
4Length of stationary object
If a separate long wire is used for the second retaining element, then it can reach the required position, but it absorbs bending stresses resulting in reduced strength
Solution Approach 1:
The second retaining element is merged with the existing wire structure that is optimized for tensile strength. By integrating it into this pre-engineered wire framework, the element benefits from the inherent strength properties of the wire system without introducing bending stress vulnerabilities that would occur with a separate long wire configuration
Data Source
AI summary
In a vehicle seat, in particular a motor vehicle seat, having a seat part, a rest and retaining elements for securing a child seat which is placed on the seat part of the vehicle seat, wherein the child seat can be connected to at least a first retaining element by means of at least one connector in its lower region and can be connected to at least a second retaining element by means of at least one retaining belt in its upper region, and wherein the rest has a rest frame and a cushion which is held by the rest frame, the second retaining element simultaneously supports the cushion.