Height-Adjustable Vehicle Seat Layout for Compact Load Sensing
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 and sensor placement.
Innovation Solution
A conveyance seat design featuring 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 and reduced size in both height and width directions.
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 changes the spatial arrangement dimension by positioning the load detection sensor and rotation shaft at different locations in the front to back direction rather than overlapping them vertically. This dimensional repositioning allows both components to coexist without increasing the seat height, resolving the contradiction between load detection capability and compact height.
2Ease of operation
If the link member and load detection sensor are arranged in a conventional overlapping configuration, then the height adjustment mechanism functions properly, but the overall device size increases
Solution Approach 1:
The patent applies dimensional repositioning by arranging the link member and load detection sensor at different front to back positions rather than overlapping them in the vertical dimension. This allows the height adjustment mechanism to function while maintaining a compact overall seat volume.
Solution Approach 2:
The patent segments the spatial arrangement by separating the functional zones of the link member and load detection sensor along the front to back direction. This segmentation allows each component to occupy its own spatial niche without interfering with the other, preventing size increase while maintaining operational functionality.
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.