Seatbelt device and vehicle

• US 20070246927A1
• Filed: 04/16/2007
• Published: 10/25/2007
• Est. Priority Date: 04/21/2006
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Okada, Naoki
• Application Number:
  US11/785,220
• Publication Number:
  US 20070246927A1
• Time in Patent Office: Days
• US Class Current: 280/804
• CPC Class Codes: B60R 2022/027 Four-point seat belt systems, e.g. with the two upper points connected together
• CPC Class Codes: B60R 22/00 Safety belts or body harnesses in vehicles safety belts or body harnesses in general A62B35/00

Abstract

With this seatbelt device, a lap belt portion is provided at a seatbelt between a first shoulder belt portion and a second shoulder belt portion. The seatbelt between the first shoulder belt portion and the lap belt portion is supported by a lap outer anchor via a tongue. The seatbelt between the second shoulder belt portion and the lap belt portion is supported by a lap inner anchor. For this reason, the lap belt portion is worn at the lumbar region of the passenger with certainty. Due to this, the capability of restraining the lumbar region of the passenger can be increased using a simple configuration.

Claims

1. A seatbelt device comprising:

a first shoulder belt portion that is provided at a seatbelt worn at a passenger seated in a seat of a vehicle and which is worn from a shoulder region of a first side of the passenger to a second side of a lumbar region of the passenger;

a second shoulder belt portion that is provided at the seatbelt and which is worn from the shoulder region of the second side of the passenger to the first side of the lumbar region of the passenger;

a lap belt portion that is provided at the seatbelt between the first shoulder belt portion and the second shoulder belt portion and which is worn at the lumbar region of the passenger from the first side to the second side; and

a pair of lap anchors that support the seatbelt between the first shoulder belt portion and the lap belt portion and between the second shoulder belt portion and the lap belt portion.

2. The seatbelt device of claim 1, wherein the support of the seatbelt by at least one of the pair of lap anchors is releasable.

3. The seatbelt device of claim 1, wherein a pretensioner is provided at at least one of one end side of the seatbelt and the lap anchor at another end side of the seatbelt, such that the tension of the seatbelt can be increased.

4. The seatbelt device of claim 1, wherein at least one of one end side of the seatbelt and another end side of the seatbelt is movable towards a position forward of a position at which the seatbelt is worn at the passenger.

5. The seatbelt device of claim 1, further provided with a tension adjusting mechanism that can adjust the tension of the seatbelt.

6. The seatbelt device of claim 5, wherein the tension adjusting mechanism decreases the tension of the seatbelt when the seatbelt is put on at the passenger.

7. The seatbelt device of claim 5, wherein, when the wearing of the seatbelt at the passenger is released, the tension adjusting mechanism increases the tension of the seatbelt.

20. A vehicle provided with the seatbelt device of claim 1.

8. A seatbelt device comprising:

a first shoulder belt portion that is provided at a seatbelt worn at a passenger seated in a seat of a vehicle and which is worn from a shoulder region of a first side of the passenger to a second side of a lumbar region of the passenger;

a second shoulder belt portion that is provided at the seatbelt and which is worn from the shoulder region of the second side of the passenger to the first side of the lumbar region of the passenger;

a lap belt portion that is provided at the seatbelt between the first shoulder belt portion and the second shoulder belt portion and which is worn at the lumbar region of the passenger from the first side to the second side; and

a pair of lap anchors that support the seatbelt between the first shoulder belt portion and the lap belt portion and between the second shoulder belt portion and the lap belt portion,

wherein, when the seatbelt is put on at the passenger, at least one of one end side of the seatbelt and another end side of the seatbelt is moved towards a position at which the seatbelt is worn at the passenger.

9. The seatbelt device of claim 8, wherein the lap anchor is caused to support the seatbelt when the seatbelt is put on at the passenger.

10. The seatbelt device of claim 9, wherein the at least one of the one end side and the another end side of the seatbelt is moved towards the position at which the seatbelt is worn at the passenger when the lap anchor has been caused to support the seatbelt.

11. The seatbelt device of claim 8, wherein the tension of the seatbelt increases when the seatbelt is put on at the passenger.

12. The seatbelt device of claim 11, wherein the tension of the seatbelt increases when the movement of the at least one of the one end side and the another end side of the seatbelt towards the position at which the seatbelt is worn at the passenger has finished.

13. The seatbelt device of claim 8, wherein the tension of the seatbelt decreases when the seatbelt has been put on at the passenger.

14. The seatbelt device of claim 13, wherein the tension of the seatbelt decreases when a preset amount of time has elapsed since the movement of the at least one of the one end side and the another end side of the seatbelt towards the position at which the seatbelt is worn at the passenger has finished.

18. The seatbelt device of claim 14, wherein the tension of the seatbelt is increased when the wearing of the seatbelt at the passenger is released.

15. A seatbelt device comprising:

a first shoulder belt portion that is provided at a seatbelt worn at a passenger seated in a seat of a vehicle and which is worn from a shoulder region of a first side of the passenger to a second side of a lumbar region of the passenger;

a second shoulder belt portion that is provided at the seatbelt and which is worn from the shoulder region of the second side of the passenger to the first side of the lumbar region of the passenger;

a lap belt portion that is provided at the seatbelt between the first shoulder belt portion and the second shoulder belt portion and which is worn at the lumbar region of the passenger from the first side to the second side; and

a pair of lap anchors that support the seatbelt between the first shoulder belt portion and the lap belt portion and between the second shoulder belt portion and the lap belt portion,

wherein, when the wearing of the seatbelt at the passenger is released, at least one of one end side of the seatbelt and another end side of the seatbelt is moved towards a position forward of a position at which the seatbelt is worn at the passenger.

16. The seatbelt device of claim 15, wherein the support of the seatbelt by the lap anchor is released when the wearing of the seatbelt at the passenger is released.

17. The seatbelt device of claim 16, wherein, when the support of the seatbelt by the lap anchor has been released, the at least one of the one end side of the seatbelt and the another end side of the seatbelt is moved towards the position forward of the position at which the seatbelt is worn at the passenger.

19. The seatbelt device of claim 15, wherein the tension of the seatbelt is increased when the movement of the at least one of the one end side of the seatbelt and the another end side of the seatbelt towards the position forward of the position at which the seatbelt is worn at the passenger has finished.