Vehicle Seat Fitting Reinforcement for High Torque Transmission
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Solution Overview
Problem
Vehicle seats face challenges in efficiently transmitting high torques while minimizing weight and cost, particularly in designs with disk-shaped fittings that offer limited fastening options and require enhanced structural reinforcement.
Innovation Solution
A vehicle seat design featuring rotatable fitting parts with a reinforced fastening region, utilizing an additional part with a separate opening and fixed connection to the structural part, allowing for increased material thickness only in critical areas, thereby enhancing strength and absorbing crash forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the material thickness of the structural part is increased throughout to enhance strength for transmitting high torques, then the strength is improved, but the weight and costs increase significantly
Solution Approach 1:
The patent applies local quality by reinforcing only the fastening region where the fitting is attached, rather than increasing material thickness throughout the entire structural part. The additional part provides localized material accumulation specifically at the high-stress fastening area, maintaining overall low weight while ensuring sufficient strength where needed.
Solution Approach 2:
The structural part is segmented into two components: the base structural part with low material thickness and the additional part that provides localized reinforcement. This segmentation allows the fitting to be attached to the reinforced fastening region formed by the combination, achieving high strength at the connection point without increasing the weight of the entire structural part.
2Strength
If the material thickness is increased uniformly across the structural part to ensure structural integrity, then the structural integrity is improved, but the costs increase
Solution Approach 1:
The invention applies local quality by providing reinforcement only in the fastening region where it is structurally necessary, rather than uniformly increasing material thickness across the entire structural part. This localized approach reduces material consumption and manufacturing costs while maintaining structural integrity at critical areas.
Solution Approach 2:
The structural part is divided into a base component and an additional reinforcement part. This segmentation allows manufacturers to produce each component separately with optimized material usage, reducing overall material costs while ensuring structural integrity where the additional part is attached to form the reinforced fastening region.
3Weight of moving object
If the structural part is designed with reduced material thickness to minimize weight, then the weight is reduced, but the ability to transmit high torques and absorb crash forces is compromised
Solution Approach 1:
The patent applies local quality by concentrating material reinforcement specifically in the fastening region where torque transmission and crash force absorption are critical, while maintaining reduced material thickness in non-critical areas. This ensures the structural part remains lightweight overall while possessing sufficient strength where mechanically necessary.
Solution Approach 2:
The structural part is segmented into a lightweight base structure and a localized additional part that provides reinforcement at the fastening region. This segmentation enables the structural part to achieve low weight through reduced material thickness in most areas, while still capable of transmitting high torques and absorbing crash forces through the reinforced fastening region where the additional part is attached.
Data Source
AI summary
A vehicle seat, in particular motor vehicle seat, comprises at least one fitting which has two fitting parts rotatable relative to one another, and which defines an axis. At least one structural part has at least one first opening having a first diameter for partially accommodating the fitting, and at least one fastening region surrounding the first opening for fastening the fitting. The fastening region is reinforced relative to the other regions of the structural part by an additional part which has a second opening having a second diameter. The additional part is fixedly connected to the structural part, and the fitting is fixedly connected to the additional part and is at least partially inserted into the second opening.