Weight sensor and occupant detecting system
First Claim
1. A weight sensor for detecting a weight applied to a seat that is disposed on a floor, said weight sensor comprising:
- a long and narrow sensing member having a floor side fixing portion disposed at one end, a seat side fixing portion at the other end and a sensing portion disposed between said floor side fixing portion and said seat side fixing portion; and
a plurality of strain gages disposed on said sensing portion;
wherein;
said sensing member comprises stress concentration steps between said floor side fixing portion and said sensing portion and between said seat side fixing portion and said sensing portion;
said floor side fixing portion is directly fastened to the floor by a plurality of fastening bolts at a prescribed position thereof; and
said seat side fixing portion is directly fastened to the seat by a plurality of fastening bolts at a prescribed position thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A weight sensor for detecting an occupant seated on a seat includes a long and narrow sensing member having a floor side fixing portion disposed at one end, a seat side fixing portion at the other end and a sensing portion disposed between the floor side fixing portion and the seat side fixing portion and plural strain gages disposed on the sensing portion. The sensing member has stress concentration steps between the floor side fixing portion and the sensing portion and between the seat side fixing portion and the sensing portion. The floor side fixing portion is directly fastened to a seat rail fixed to a floor by fastening bolts, and the seat side fixing portion is directly fastened to a seat frame of the seat by fastening bolts.
12 Citations
12 Claims
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1. A weight sensor for detecting a weight applied to a seat that is disposed on a floor, said weight sensor comprising:
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a long and narrow sensing member having a floor side fixing portion disposed at one end, a seat side fixing portion at the other end and a sensing portion disposed between said floor side fixing portion and said seat side fixing portion; and
a plurality of strain gages disposed on said sensing portion;
wherein;
said sensing member comprises stress concentration steps between said floor side fixing portion and said sensing portion and between said seat side fixing portion and said sensing portion;
said floor side fixing portion is directly fastened to the floor by a plurality of fastening bolts at a prescribed position thereof; and
said seat side fixing portion is directly fastened to the seat by a plurality of fastening bolts at a prescribed position thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification