Vehicle Seat Attachment Structure With Tolerance Compensation
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Solution Overview
Problem
Existing seat attachment structures fail to effectively compensate for tolerances between vehicle seats and longitudinal adjustment mechanisms and vehicle floor structures, leading to alignment errors, unwanted jamming, and disturbing noises during adjustment.
Innovation Solution
A seat attachment structure with a tolerance compensation device comprising at least one attachment opening and compensation elements, such as sliding elements, that can adjust for transverse, longitudinal, and vertical tolerances, allowing for easy alignment and connection to the vehicle seat and longitudinal adjustment mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional seat attachment structures are used without tolerance compensation, then the structure is simple and easy to manufacture, but alignment errors occur and unwanted jamming and noises happen during adjustment
Solution Approach 1:
The patent introduces a tolerance compensation device as an intermediary component between the seat attachment structure and the longitudinal adjustment mechanism. This device includes compensation elements that can move relative to the attachment structure, absorbing tolerance variations and preventing alignment errors and jamming during adjustment operations.
Solution Approach 2:
The tolerance compensation device changes the positional parameters of the connection interface by allowing compensation elements to move within a defined range. This movement adjusts the effective position of the attachment opening relative to the attachment structure, compensating for manufacturing tolerances and ensuring proper alignment during seat adjustment.
2Object-affected harmful factors
If tolerance compensation devices are added to the seat attachment structure, then alignment errors are reduced and noises are eliminated, but the device complexity increases
Solution Approach 1:
The tolerance compensation device serves as a mediator that isolates the seat attachment structure from the longitudinal adjustment mechanism, absorbing harmful effects of misalignment and preventing noise and jamming during adjustment operations.
Solution Approach 2:
The compensation elements are designed to beforehand accommodate potential alignment deviations by providing a range of motion that absorbs tolerance variations before they can cause jamming or noise during seat adjustment operations.
3Adaptability or versatility
If the attachment opening has dimensions larger than the compensation element, then the compensation element can move freely for tolerance adjustment, but the precision of the connection may be reduced
Solution Approach 1:
The attachment opening is designed with dimensions that are larger than the compensation element, providing excessive clearance that allows the compensation element to move freely for tolerance compensation. This partial looseness is acceptable because the compensation element's movement capability is sufficient to absorb all expected tolerance variations.
Data Source
AI summary
A seat attachment structure for connecting a vehicle seat to a longitudinal adjustment mechanism and/or a vehicle floor structure is provided. The seat attachment structure has a first attachment side that is connectable to the vehicle seat and a second attachment side that is connectable to the longitudinal adjustment mechanism and/or the vehicle floor structure. The second attachment side has at least one attachment opening extending in the transverse direction with a tolerance compensation device arranged therein to compensate for tolerances in at least one spatial direction. A vehicle seat with the seat attachment structure is also provided.