Occupant load sensor for vehicle
First Claim
1. An occupant load sensor for a vehicle, comprising:
- a strain member adapted to be fixed at both ends at a fixing surface provided at one of a floor side fixing member and a seat side fixing member with a predetermined distance from the fixing surface in a vertical direction of a seat;
a connecting member vertically fixed at a center of the strain member, the connecting member adapted to be fixed at the other one of the floor side fixing member and the seat side fixing member;
a strain gauge attached to a surface of the strain member between each of the ends and the center of the strain member;
an upper bracket having a fixed portion at each end thereof fixed to a back surface of the strain member at the both end and an attachment portion connecting the each fixed portion and extending at a side of the strain member in a lateral direction of the seat;
an amplifier case attached to the attachment portion of the upper bracket and arranged in parallel with the strain member;
an amplifier substrate enclosed in the amplifier case and placed on an identical plane to the surface of the strain member for amplifying a signal transmitted from the strain gauge;
an FPC substrate connected to the strain gauge between each of the ends and the center of the strain member and connected to the amplifier substrate;
a coating portion made of resin for coating a connection portion between the FPC substrate and the strain gauge; and
a low pressure molded portion made of resin, the low pressure molded portion molded with a hot melt resin by low pressure molding in the amplifier case so as to cover the amplifier substrate and the connection portion between the FPC substrate and the strain gauge.
1 Assignment
0 Petitions
Accused Products
Abstract
An occupant load sensor for a vehicle includes a strain member, a connecting member fixed at the strain member, a strain gauge attached to the strain member, an upper bracket having a fixed portion and an attachment portion connecting each fixed portion and extending at a side of the strain member in a lateral direction of the seat, an amplifier case attached to the attachment portion and arranged in parallel with the strain member, an amplifier substrate enclosed in the amplifier case and placed on an identical plane to the strain member, an FPC substrate connected to the strain gauge and the amplifier substrate, a coating portion for coating a connection portion between the FPC substrate and the strain gauge; and a low pressure molded portion molded with a hot melt resin by low pressure molding in the amplifier case to cover the amplifier substrate and the connection portion.
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Citations
6 Claims
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1. An occupant load sensor for a vehicle, comprising:
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a strain member adapted to be fixed at both ends at a fixing surface provided at one of a floor side fixing member and a seat side fixing member with a predetermined distance from the fixing surface in a vertical direction of a seat; a connecting member vertically fixed at a center of the strain member, the connecting member adapted to be fixed at the other one of the floor side fixing member and the seat side fixing member; a strain gauge attached to a surface of the strain member between each of the ends and the center of the strain member; an upper bracket having a fixed portion at each end thereof fixed to a back surface of the strain member at the both end and an attachment portion connecting the each fixed portion and extending at a side of the strain member in a lateral direction of the seat; an amplifier case attached to the attachment portion of the upper bracket and arranged in parallel with the strain member; an amplifier substrate enclosed in the amplifier case and placed on an identical plane to the surface of the strain member for amplifying a signal transmitted from the strain gauge; an FPC substrate connected to the strain gauge between each of the ends and the center of the strain member and connected to the amplifier substrate; a coating portion made of resin for coating a connection portion between the FPC substrate and the strain gauge; and a low pressure molded portion made of resin, the low pressure molded portion molded with a hot melt resin by low pressure molding in the amplifier case so as to cover the amplifier substrate and the connection portion between the FPC substrate and the strain gauge. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification