Vehicle Seat Depth Adjustment With Single-Element Load Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle seat designs with seat depth adjustments are not suitable for off-road use due to the need for additional rigidity and load capacity, requiring complex and effort-intensive modifications to the rod elements guiding the seat depth adjustment.
Innovation Solution
A vehicle seat design featuring a seat depth adjustment element that is linearly displaceable relative to the seat part frame, utilizing a single connecting element for guidance and a spring unit for tolerance compensation, eliminating the need for multiple rod elements and enhancing the seat's adaptability under heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple rod elements are used to guide the seat depth adjustment, then the guidance and load capacity are sufficient for normal use, but the device complexity and manufacturing effort increase significantly for off-road adaptation
Solution Approach 1:
The patent combines the guidance function and load-bearing function into a single connecting element that integrates the rod element and connecting element. This merging eliminates the need for separate rod elements and additional connecting components, reducing the total number of parts while maintaining sufficient load capacity for off-road conditions.
Solution Approach 2:
The connecting element is designed to perform multiple functions simultaneously: it guides the seat depth adjustment element, connects the seat part frame to the seat depth adjustment element, and bears loads during adjustment. This multi-functionality replaces the specialized rod elements with a single versatile component.
2Strength
If additional rigidity is added to rod elements for off-road use, then the load capacity improves, but the manufacturing effort and complexity increase considerably
Solution Approach 1:
By merging the rod element and connecting element into a single integrated component, the patent eliminates the need to separately design and manufacture multiple rigid elements. The single connecting element can be optimized for both strength and manufacturability, reducing overall manufacturing complexity while maintaining off-road load capacity.
3Device complexity
If a single connecting element is used instead of multiple rod elements, then the number of components is reduced, but the guidance precision and stability may be compromised
Solution Approach 1:
The connecting element is designed with integrated guidance features that allow it to precisely guide the seat depth adjustment element while maintaining structural integrity. The element incorporates guidance surfaces and constraints that ensure accurate movement along the adjustment path, compensating for the reduction in component count.
4Ease of manufacture
If the seat depth adjustment element is made of plastic with injection molding, then the ease of manufacture improves, but the load capacity and rigidity may be reduced
Solution Approach 1:
The patent employs plastic material for the seat depth adjustment element, leveraging modern polymer properties and injection molding technology to achieve sufficient load capacity while maintaining ease of manufacture. The plastic material can be designed with appropriate reinforcement and structural features to meet off-road load requirements.
Data Source
AI summary
The invention relates to a vehicle seat, the vehicle seat having a seat part frame and a seat depth adjustment with a seat depth adjustment element, the seat depth adjustment element being displaceable relative to the seat part frame, wherein a first connecting element is provided and designed to connect the seat depth adjustment element to the seat part frame and to guide the seat depth adjustment element relative to the seat part frame.