Vehicle seat assembly having a vehicle occupant sensing system and a seat cushion insert

• US 20050093350A1
• Filed: 10/27/2004
• Published: 05/05/2005
• Est. Priority Date: 06/26/2003
• Status: Active Grant

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Ali, Asad S., Young, Oliver J.
• Granted Patent: US 7,063,382 B2
• Time in Patent Office: Days
• US Class Current: 297/217.3
• 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: B60R 21/01516 using force or pressure sensing means
• 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 assembly for detecting a condition of the seat assembly. The vehicle seat assembly includes a seat cushion. The vehicle seat assembly also includes a vehicle occupant sensing system having a plurality of sensor assemblies. Each sensor assembly includes a base and an upper slide member. The upper slide member is supported for movement toward and away from the base in response to a condition of the seat cushion. Additionally, the vehicle seat assembly includes at least one seat cushion insert having a topside and an underside. The seat cushion insert is disposed between the seat cushion and the sensor assemblies, and the topside has at least one planar section.

Claims

1. A vehicle seat assembly comprising:

a seat cushion;

a vehicle occupant sensing system having a plurality of sensor assemblies, each including a base and an upper slide member, said upper slide member supported for movement toward and away from said base in response to a condition of said seat cushion; and

a seat cushion insert having a topside and an underside, said seat cushion insert disposed between said seat cushion and said sensor assemblies, said topside having at least one planar section.

2. A vehicle seat assembly as set forth in claim 1, wherein said seat cushion includes an upper surface and a lower surface, said topside of said seat cushion insert in contact with said lower surface of said seat cushion, and said lower surface of said seat cushion having at least one planar portion such that said lower surface of said seat cushion corresponds in shape to said topside of said seat cushion insert.

3. A vehicle seat assembly as set forth in claim 2, wherein seat cushion includes a recess formed on said lower surface of said seat cushion, and said seat cushion insert is disposed within said recess of said seat cushion.

4. A vehicle seat assembly as set forth in claim 1, wherein said seat cushion insert includes a forward portion and a rear portion, said forward portion disposed at a positive angle relative to said rear portion of said seat cushion insert, said forward portion and said rear portion defining said topside of said seat cushion insert.

5. A vehicle seat assembly as set forth in claim 4, wherein said forward portion includes at least one indent defining an axis that is generally perpendicular to said rear portion of said seat cushion insert.

6. A vehicle seat assembly as set forth in claim 1, wherein said seat cushion insert includes at least one indent adapted to receive at least one of said upper slide members.

7. A vehicle seat assembly as set forth in claim 1, further comprising a seat pan with a middle section and a plurality of bolsters disposed on a periphery of said middle section, said seat cushion insert disposed over said middle section of said seat pan.

8. A vehicle seat assembly as set forth in claim 1, wherein said seat cushion insert is made out of polyurethane foam.