Vehicle Seat Link Layout for Compact Load Sensor Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicle seats with height adjustment mechanisms and load detection sensors face challenges in maintaining compact size, as existing designs often result in increased height and width due to overlapping components.
Innovation Solution
The design incorporates a seat cushion frame with a pair of side frames, a first link member with rotatable shafts, and load detection sensors positioned differently to avoid overlap, allowing for compact arrangement without increasing the seat's height or width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the load detection sensor is arranged to overlap with the rotation shaft of the link member in the seat front to back direction, then the load detection function is achieved, but the size of the vehicle seat increases in the up to down direction
Solution Approach 1:
The patent repositions the load detection sensor from overlapping with the rotation shaft in the front-to-back direction to a different position also in the front-to-back direction. This dimensional rearrangement allows both the rotation shaft and sensor to coexist without vertical overlap, thereby preventing increase in seat height while maintaining load detection capability
2Adaptability or versatility
If the link member and load detection sensor are arranged in overlapping positions, then both height adjustment and load detection functions are integrated, but the device complexity increases
Solution Approach 1:
The patent segments the functional components by spatially separating the load detection sensor from the rotation shaft of the link member. Both components remain part of the height adjustment mechanism, but their functional paths are separated in the front-to-back direction, reducing spatial interference and simplifying the overall arrangement
Data Source
AI summary
A vehicle seat includes a seat cushion provided with a seat cushion frame, a front link configured to adjust a height of the seat cushion with respect to a base that is a slide rail or a vehicle body floor, and a front load detection sensor attached to an upper rail and configured to detect a load applied to the vehicle seat. The seat cushion frame includes a pair of side frames separated from each other in a seat width direction, the front link includes a first rotation shaft configured to be rotatable with respect to the seat cushion frame and a second rotation shaft configured to be rotatable with respect to the base, and the front load detection sensor is arranged at a position different from the second rotation shaft in a front to back direction of the seat.