VEHICLE SEAT LOAD SENSOR

• US 20110303469A1
• Filed: 12/04/2009
• Published: 12/15/2011
• Est. Priority Date: 12/11/2008
• Status: Abandoned Application

• Current Assignee: Calsonic Kansei Corporation
• Original Assignee: Calsonic Kansei Corporation
• Inventors: Saito, Noboru, Kawashima, Shunji
• Application Number:
  US13/139,013
• Publication Number:
  US 20110303469A1
• Time in Patent Office: Days
• US Class Current: 177/136
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/0025 by using weight measurement
• CPC Class Codes: B60N 2/0031 mounted on the frame
• CPC Class Codes: B60N 2210/42 Strain gauges
• CPC Class Codes: G01G 19/4142 for controlling activation of safety devices, e.g. airbag systems electrical circuits for triggering safety arrangements in case of vehicle accidents B60R21/015

Abstract

A vehicle seat load sensor which is attached under a vehicle seat, and is configured to detect a load acting on the vehicle seat includes a seat support configured to support a vehicle seat, and a flexible body configured to receive the load from the seat support, the seat support including a seat support surface configured to support the vehicle seat and a projection which is formed on the seat support surface and is configured to have contact with the vehicle seat.

Claims

1. A vehicle seat load sensor which is attached under a vehicle seat, and is configured to detect a load acting on the vehicle seat, comprising:

a seat support configured to support a vehicle seat; and

a flexible body configured to receive the load from the seat support,

the seat support including a seat support surface configured to support the vehicle seat and a projection which is formed on the seat support surface and is configured to have contact with the vehicle seat.

2. The vehicle seat load sensor according to claim 1, wherein the projection has contact with the vehicle seat by at least two points which sandwich a gravity center of the seat support therebetween.

3. The vehicle seat load sensor according to claim 2, wherein the distances from the gravity center of the seat support to the two points are equal to each other.

4. The vehicle seat load sensor according to claim 1, wherein the seat support is movable together with the vehicle seat, and the projection extends along the moving direction of the vehicle seat.

5. The vehicle seat load sensor according to claim 4, wherein the projection extends to pass through the gravity center of the seat support.

6. The vehicle seat load sensor according to claim 1, wherein a cross-section shape of the projection includes a convex shape which projects toward the vehicle seat and has an apex.

7. The vehicle seat load sensor according to claim 1, wherein the projection has a seat contact surface which has contact with the vehicle seat, and the seat contact surface is curved into a convex shape.

8. The vehicle seat load sensor according to claim 4, wherein the seat support has a screw portion which is fastened to the vehicle seat, and a measurement of the projection in the width direction orthogonal to an extending direction of the screw portion is smaller than a diameter of the screw portion.