US 2006/0076164 A1Published application

Weight sensor and occupant detecting system

AssigneeDenso Corporation

InventorEiichi Nishio

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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.

Claims12

Dependent claims

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.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/231,923Filed 22 Sep 2005
Priority: JP 2004-28579030 Sep 2004
Published: 13 Apr 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B60R 21/0152
Using force or pressure sensing means: using strain gauges
B60N 2/0025
For identifying, categorising or investigation of the occupant or object on the seat: by using weight measurement
B60N 2/0031
Characterised by the sensor mounting location in or on the seat: mounted on the frame
B60N 2/0035
Characterised by the type of sensor or measurement: characterised by the sensor data transmission, e.g. wired connections or wireless transmitters…

Family

No related US applications are recorded in the indexed filing history.

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