Vehicle safety seat

• US 7,976,092 B2
• Filed: 09/28/2010
• Issued: 07/12/2011
• Est. Priority Date: 10/19/2004
• Status: Active Grant

• Current Assignee: Indiana Mills & Manufacturing Incorporated
• Original Assignee: Indiana Mills & Manufacturing Incorporated
• Inventors: Chinni, James R., Meredith, Jeffery W.
• Primary Examiner(s): Morrow; Jason S
• Application Number:
  US12/892,673
• Publication Number:
  US 20110018316A1
• Time in Patent Office: 287 Days
• Field of Search: 296/68.1, 296/63, 296/65.03, 280/735, 280/807, 280/801.2, 297/216.17, 297/217.3
• US Class Current: 296/63
• CPC Class Codes: B60N 2/42736 of the whole seat
• CPC Class Codes: B60N 2/4279 electric or electronic triggering
• CPC Class Codes: B60N 2/501 actively controlled suspension, e.g. electronic control
• CPC Class Codes: B60N 2/507 Parallelogram-like structure
• CPC Class Codes: B60R 2021/0018 Roll-over
• CPC Class Codes: B60R 2021/01272 Belt tensioners
• CPC Class Codes: B60R 2021/23107 the bag being integrated in a multi-bag system
• CPC Class Codes: B60R 2022/027 Four-point seat belt systems, e.g. with the two upper points connected together
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/23184 Tubular air bags connected to the vehicle at their two extremities
• CPC Class Codes: B60R 22/1952 Transmission of tensioning power by cable; Return motion locking means therefor
• CPC Class Codes: B60R 22/1955 Linear actuators

Abstract

A vehicle safety seat may comprise, among other things, a vehicle seat having a seat base configured to be mounted to a support surface of a motor vehicle, and a roll sensor mounted to the seat base. The vehicle seat may be a suspension seat. The vehicle seat may have other sensors, event detection systems or the like mounted thereto. The vehicle seat may include a number of vehicle/occupant safety mechanisms integral therewith.

Claims

1. A vehicle safety seat comprising:

a suspension seat including an occupant seat coupled to a seat base, the seat base attachable to a support surface of a motor vehicle via a number of seat base attachment members,

a sensor module mounted to the seat base, the sensor module including a sensor configured to produce a sensor signal upon detection of at least one of a vehicle roll over event and a vehicle impact event,

at least one electrical wire electrically connectable to the sensor, wherein electrical connection between the at least one electrical wire and the sensor is required for operation of the sensor,

a seat base removal safety mechanism that requires electrical disconnection of, or that causes electrical disconnection of, the at least one electrical wire from the sensor before all of the number of seat base attachment members the seat base can be accessed to completely detach the seat base from the support surface of the vehicle.

2. The vehicle safety seat of claim 1 further comprising an electrical connector electrically connected by the at least one electrical wire to the sensor and configured to be electrically connected to the sensor module.

3. The vehicle safety seat of claim 2 wherein the electrical connector comprises a voltage supply connector configured to supply an operating voltage to the sensor.

4. The vehicle safety seat of claim 2 wherein the electrical connector comprises a signal connector configured to provide a sensor signal produced by the sensor to a signal processor.

5. The vehicle safety seat of claim 2 wherein the electrical connector comprises a voltage supply electrical connector configured to supply an operating voltage to the sensor module and a signal connector configured to provide a sensor signal produced by the sensor to a signal processor.

6. The vehicle safety seat of claim 2 wherein the electrical connector blocks access to the seat base removal safety mechanism when electrically connected to the sensor module.

7. The vehicle safety seat of claim 6 wherein the number of seat base attachment members comprises at least a first attachment member configured to extend through the seat base and engage the support surface of the vehicle,

and wherein the seat base removal safety mechanism comprises a second attachment member extending into the seat base and over the first attachment member such that the second attachment member normally blocks access to the first attachment member when extended through the seat base and over the first attachment member,

and wherein the sensor module is positioned relative to the seat base such that the electrical connector inhibits access to the second attachment member when the electrical connector is electrically connected to the sensor module, and such that the second attachment member is accessible when the electrical connector is electrically disconnected from the sensor module.

8. The vehicle safety seat of claim 7 wherein the seat base comprises an engaging member configured to receive the second attachment member, the second attachment member configured to extend into the seat base and into engagement with the engaging member to secure the second attachment member to the seat base.

9. The vehicle safety seat of claim 7 wherein the first attachment member comprises a first bolt and the second attachment member comprises a second bolt.

10. The vehicle safety seat of claim 2 wherein the electrical connector inhibits movement of the seat base removal safety mechanism relative to the seat base when electrically connected to the sensor module.

11. The vehicle safety seat of claim 2 wherein the number of attachment members comprises at least a first attachment member configured to extend through the seat base and engage the support surface of the vehicle,

and wherein the seat base removal safety mechanism comprises a safety plate mounted to the seat base, a first portion of the safety plate positioned relative to the seat base to inhibit access to the first attachment mechanism when the electrical connector is electrically connected to the sensor module, the safety plate positioned between the electrical connector and the sensor module such that the electrical connector inhibits movement of the safety plate relative to the seat base to thereby inhibit access to the first attachment member when electrically connected to the roll sensor.

12. The vehicle safety seat of claim 11 further including a sensor mounting bracket having the sensor module mounted thereto, the sensor mounting bracket mounted to the seat base via a plurality of mounting elements,

and wherein a second portion of the safety plate extends over at least one of the plurality of mounting elements to inhibit access thereto and thereby inhibit removal of the sensor mounting bracket when the electrical connector is electrically connected to the roll sensor.

13. The vehicle safety seat of claim 12 wherein the sensor mounting bracket includes at least one anti-rotation tab extending over a portion of the seat base, the at least one anti-rotation tab engaging the seat base and preventing rotation of the sensor mounting bracket relative to the seat base when enough of the plurality of mounting elements have been removed to otherwise permit rotation of the sensor mounting bracket relative to the seat base.

14. The vehicle safety seat of claim 1 further comprising a vehicle seat mounting plate having a bottom plate member configured to be mounted to a support surface of the vehicle and a top plate member movably attached to the bottom plate member and configured to be attached to the seat base,

wherein a first subset of the number of seat base attachment members extend through the bottom plate member to secure the seat base to the support surface, the first subset of the number of seat base members accessible only when the top plate member is moved away from the bottom plate member to an open position to expose the first subset of the number of seat base attachment members,

and wherein a second subset of the number of seat base attachment members extend through the top and bottom plate members to secure the seat base to the support surface when the top plate member is moved toward the bottom plate member to a closed position in which access to the first subset of the number of seat base attachment members is blocked by the top plate member.

15. The vehicle safety seat of claim 14 wherein the seat base removal safety mechanism comprises a contact switch mounted to one of the top and the bottom plate members, the contact switch being closed by contact with the other of the top and bottom plate members when the top and bottom plate members are in the closed position, and the contact switch being opened when the top and bottom plate members are moved sufficiently away from each other toward the open position, the contact switch interposed in-line with the at least one electrical wire such that the sensor module is only operable when the contact switch is closed and the sensor module is inoperable when the contact switch is otherwise open.

16. The vehicle safety seat of claim 15 wherein the at least one electrical wire is one of a ground wire connecting a voltage supply to the sensor module and a signal wire connecting the sensor to a signal processor.

17. The vehicle safety seat of claim 1 wherein the sensor comprises at least one of a roll sensor and a vehicle impact sensor.

18. The vehicle safety seat of claim 1 wherein the sensor comprises a roll sensor and includes a signal output electrically connected to a signal processor, the signal processor processing a roll sensor signal produced by the roll sensor at the signal output to determine whether a vehicle roll over event is occurring.

19. The vehicle safety seat of claim 18 wherein the occupant seat is coupled to the seat base by a suspension mechanism,

and wherein the suspension seat includes an actuator responsive to a seat actuation signal to draw the occupant seat toward the seat base to a locked position relative to the seat base,

and wherein the signal processor is configured to produce the seat actuation signal when the signal processor determines that the vehicle roll over event is occurring.

20. The vehicle safety seat of claim 1 wherein the sensor comprises a vehicle impact sensor and includes a signal output electrically connected to a signal processor, the signal processor processing a vehicle impact sensor signal produced by the vehicle impact sensor at the signal output to determine whether a vehicle impact event is occurring.