Load-detecting device with pressed surface movable relative to mount surface
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Solution Overview
Problem
Existing load-detecting devices struggle to accurately detect loads when the seat cushion surface is inclined due to variations in sitting position or the presence of luggage, leading to improper detection of sitting loads.
Innovation Solution
A load-detecting device with a pivoting pressed surface that adjusts its angle relative to the mount surface, allowing it to follow the inclination of the seat cushion, ensuring proper contact and detection of loads, even when the cushion surface is inclined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the load-detecting device uses a fixed pressed surface relative to the mount surface, then the device structure is simple, but the device cannot properly detect loads when the seat cushion is inclined due to variations in sitting position or luggage
Solution Approach 1:
The pressed surface is made movable relative to the mount surface, allowing it to dynamically adjust its angle to follow the inclination of the seat cushion. This dynamic adjustment enables the device to maintain proper contact and detect loads accurately even when the seat cushion is inclined, while avoiding the need for complex multi-component adjustment mechanisms.
2Duration of action of stationary object
If the pressed surface is fixed relative to the mount surface, then the device structure is simple, but friction increases when the seat cushion is inclined leading to reduced durability
Solution Approach 1:
The pressed surface can move relative to the mount surface, dynamically adapting to the seat cushion's inclination angle. This movement reduces friction between the pressed surface and the seat cushion by maintaining optimal contact, thereby extending device durability without requiring complex adjustment mechanisms.
3Adaptability or versatility
If the pressed surface angle is fixed, then manufacturing is simple, but the device cannot adapt to different sitting positions and cushion inclinations
Solution Approach 1:
The pressed surface is designed to be movable relative to the mount surface, enabling it to automatically adapt to various inclination angles caused by different sitting positions or luggage. This simple movable design achieves adaptability without complex adjustment mechanisms, maintaining ease of manufacture.
Data Source
AI summary
A load-detecting device 1 includes a load detection sensor unit SU and a base 2 on which the load detection sensor unit SU is mounted, and the load detection sensor unit SU includes an upper surface 47S configured to be pressed by a seat cushion SC, a first electrode 52, and a second electrode 62. The upper surface 47S moves with respect to the mount surface 21S such that an angle of the upper surface 47S with respect to the mount surface 21S changes.