Seat belt buckle presenter and method of use therefor

• US 20040217583A1
• Filed: 04/29/2003
• Published: 11/04/2004
• Est. Priority Date: 04/29/2003
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (Motors Liquidation Co. GUC Trust)
• Inventors: Wang, Jenne-Tai
• Granted Patent: US 6,969,088 B2
• Time in Patent Office: Days
• US Class Current: 280/805
• CPC Class Codes: B60R 2022/1806 for buckles
• CPC Class Codes: B60R 2022/286 using deformation of material
• CPC Class Codes: B60R 22/03 Means for presenting the belt or part thereof to the wearer , e.g. foot-operated
• CPC Class Codes: B60R 22/28 incorporating energy-absorbing devices belt anchors provided with energy-absorbing means for protecting the occupants in case of physical contact therewith B60R21/055; belt retractors comprising energy-absorbing means B60R22/341, B60R22/4676

Abstract

A combination seat belt buckle presenter and seat belt use reminder includes an actuator to cause the extension and retraction of a buckle to improve buckle accessibility. A flexible support member transmits force from the actuator to the buckle. A self-locking device prevents forward or upward movement of the buckle. The self-locking mechanism is preferably configured as an energy-absorbing seat belt load limiter. The seat belt buckle presenter is preferably automated.

Claims

1. A seat belt buckle presenter for a vehicle, the buckle presenter comprising:

a seat belt buckle;

a support member operatively connected to the seat belt buckle; and

an actuator operatively connected to the support member to selectively move the buckle between an extended position and a retracted position by selectively extending and retracting the support member, the buckle being higher and more forwardly located in the extended position than the retracted position.

2. The seat belt buckle presenter of claim 1, further comprising a load-limiter operatively connected to the support member.

3. The seat belt buckle presenter of claim 1, wherein the support member is flexible.

4. The seat belt buckle presenter of claim 3, further comprising a guide, the support member being slidably engaged with the guide so that the support member moves relative to the guide during support member extension and retraction, the guide being sufficiently configured and positioned to support or redirect the movement of a portion of the support member as the portion of the support member contacts the guide during support member extension or retraction.

5. The seat belt buckle presenter of claim 4, further comprising a load-limiter operatively connected to the support member.

6. The seat belt buckle presenter of claim 5, wherein the load-limiter includes

a stationary outer tube;

an inner member operatively connected to the support member, telescoped into the outer tube, and supported on the outer tube for translation in an extension direction in which the support member and buckle are extended, and in a retraction direction in which the support member and buckle are retracted;

a ramp on the inner member facing an inside cylindrical wall on the outer tube, the ramp and the inside cylindrical wall defining an open space therebetween, the distance between the ramp and the inside cylindrical wall being greater at a first end of the open space than at a second end of the open space; and

a rolling element between the ramp and the inside cylindrical wall on the outer tube;

wherein the rolling element is cupped against the first end of the open space during translation of the inner member in the retraction direction without interfering with translation of the inner member in the retraction direction, and wherein the rolling element rolls up the ramp into wedging engagement between the ramp and the inside cylindrical wall on the outer tube during translation of the inner tube in the extension direction from a pulling force exerted on the inner member via the buckle or support member, thereby resisting extension of the buckle and support member.

7. The seat belt buckle presenter of claim 6, wherein the load-limiter further includes

an actuating member telescoped into the outer tube and operatively connected to the actuator such that the actuator selectively causes back and forth linear motion of the actuating member;

and

a retainer operatively connected to the actuating member and extending into the open space between the sphere and the second end of the ramp;

wherein the actuating member is sufficiently connected to the inner member to cause lateral movement of the inner member in the extension direction and retraction direction, the retainer being adapted to retain the rolling element in the first end of the open space to permit movement of the inner member in the extension direction caused by movement of the actuating member.

8. The seat belt buckle presenter of claim 1, further comprising a controller and at least one sensor operatively connected to the controller and adapted to monitor at least one vehicle component and communicate a state of said at least one vehicle component to the controller;

wherein the controller is operatively connected to the actuator; and

wherein the controller is programmed and configured to cause the actuator to extend or retract the support member in response to said at least one sensor communicating the existence of at least one predetermined state of said at least one vehicle component.

9. The seat belt buckle presenter of claim 8, wherein said at least one sensor is configured to monitor a seating apparatus and communicate the presence or absence of an occupant in the seating apparatus to the controller, and wherein said at least one predetermined state includes the presence or absence of an occupant in the seating apparatus.

10. The seat belt buckle presenter of claim 8, wherein said at least one sensor is configured to monitor the position of a door and communicate the position of the door to the controller;

and wherein said at least one predetermined state includes the door being in an open position or the door being in a closed position.

11. The seat belt buckle presenter of claim 8, wherein said at least one sensor is sufficiently configured and positioned to monitor the state of the seat belt buckle and communicate to the controller whether the seat belt buckle is engaged with a latch plate;

and wherein said at least one predetermined state includes the buckle being engaged or disengaged with the latch plate on the seat belt.

12. The seat belt buckle presenter of claim 8, wherein said at least one sensor is configured to monitor the position of an ignition switch and communicate the position of the ignition switch to the controller;

and wherein said at least one predetermined state includes the ignition switch being in an on position or the ignition switch being in an off position.

13. A method of providing improved seat belt buckle accessibility, the method comprising:

monitoring at least one vehicle component in a vehicle for the presence or existence of at least one predetermined state, the vehicle having

a seat belt having a latch plate operatively connected thereto,

a seat belt buckle presenter including a seat belt buckle adapted to engage the latch plate, a flexible, extendible support member operatively connected to the seat belt buckle, and an actuator operatively connected to the support member to selectively move the buckle between an extended position and a retracted position by selectively extending and retracting the support member, the buckle being higher and more forwardly located in the extended position than in the retracted position; and

causing the buckle to move between the extended position and the retracted position in response to the presence or existence of said at least one predetermined state.

14. The method of claim 13, wherein said causing the buckle to move is performed after said at least one predetermined state has existed continuously for a predetermined amount of time.

15. The method of claim 13, wherein said at least one vehicle component includes

an ignition switch movable between an on position and an off position, and

the buckle;

and

wherein said monitoring said at least one vehicle component includes monitoring the position of the ignition switch and monitoring whether the buckle is engaged or disengaged with the latch plate.

16. The method of claim 15, wherein said at least one predetermined state includes the ignition switch being in the on position and the buckle being disengaged from the latch plate;

and wherein said causing the buckle to move comprises causing the buckle to move from the retracted position to the extended position.

17. The method of claim 16, wherein said at least one vehicle component further includes a door movable between an open and a closed position;

wherein said monitoring said at least one vehicle component further includes monitoring the position of the door; and

wherein said at least one predetermined state further includes the door being in the closed position.

18. The method of claim 17, wherein the vehicle includes a seating apparatus, and said at least one vehicle component includes the seating apparatus;

wherein said monitoring said at least one vehicle component includes monitoring whether the seating apparatus is occupied by an occupant; and

wherein said at least one predetermined state includes the seating apparatus being occupied by an occupant.

19. The method of claim 17, wherein the method further comprises causing the buckle to move from the extended position to the retracted position after a second predetermined amount of time has elapsed from said causing the buckle to move from the retracted position to the extended position.

20. The method of claim 13, wherein said at least one predetermined state includes the buckle being engaged with the latch plate, and wherein said causing the buckle to move comprises causing the buckle to move from the extended position to the retracted position.

21. A seat belt buckle presenter for a vehicle having a seat belt and a seating apparatus characterized by an occupiable surface, the seat belt being adapted to selectively alternate between a stowed position in which the seat belt is located substantially to one side of the occupiable surface to facilitate occupant access to the seating apparatus, and an engaged position in which the seat belt extends across the occupiable surface, the seat belt buckle presenter comprising:

a seat belt buckle operatively engageable with a latch plate connected to the seat belt for retaining the seat belt in its engaged position;

a flexible support member operatively connected to the seat belt buckle;

an actuator operatively connected to the support member to selectively move the buckle between an extended position and a retracted position by selectively extending and retracting the support member, the buckle being higher in the extended position than the retracted position;

a guide, the support member being slidably engaged with the guide so that the support member moves relative to the guide during support member extension and retraction, the guide being sufficiently configured and positioned to support or redirect the movement of a portion of the support member as the portion of the support member contacts the guide during support member extension or retraction; and

a load-limiter operatively connected to the support member.