Release system for seat occupant in vehicle

• US 4,691,939 A
• Filed: 10/22/1985
• Issued: 09/08/1987
• Est. Priority Date: 11/14/1984
• Status: Expired due to Fees

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Sato, Yoshimi
• Primary Examiner(s): Love, John J.
• Assistant Examiner(s): Weaver, Ross
• Application Number:
  US06/790,157
• Time in Patent Office: 686 Days
• Field of Search: 280/801, 280/802, 280/806, 280/807, 280/808
• US Class Current: 280/806
• CPC Class Codes: B60R 22/3416 Unlocking devices for retractors B60R22/3405 takes precedence

Abstract

An inventive release system for a seat occupant restrained by a seat belt in a vehicle can be operated both inboard and outboard. The system includes a seat belt retractor locked in response to abrupt deceleration or collision, a mechanism emergency-releasing the retractor after the retractor has been locked, and a manual control including a control terminal exerting a control power for actuating the mechanism and also including inboard and outboard control lever mechanism manually actuated to move the control terminal.

Claims

1. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked; and

an emergency release control comprising;

(a) a chassis mounted on the vehicle body,

(b) a manually actuated inboard slider slidably mounted on said chassis,

(c) a first L-shaped control lever pivotably mounted at an angle thereof on said chassis, said first L-shaped control lever having a relatively long arm pivotally linked with said inboard slider and having a relatively short leg,

(d) a manually actuated outboard slider slidably mounted on said chassis,

(e) a second L-shaped control lever pivotably mounted at an angle thereof on the chassis, said second L-shaped control lever having a relatively long arm pivotally linked with said outboard slider and having a relatively short leg, and

(f) a control terminal movable to exert a control power for actuating said emergency-releasing means, said control terminal being actuably associated with said short leg of said first and said second L-shaped control levers, respectively.

2. A release system as recited in claim 1, wherein said seat belt retractor emergency-releasing means comprises a spool-release lever disabling said lock, and a cable transmitting the control power to actuate said spool-release lever.

3. A release system as recited in claim 2, wherein said seat belt retractor comprises a spool onto which the seat belt is wound which retracts the seat belt and a ratchet wheel fixed to said spool, and wherein said lock comprises a pawl brought into engagement with said ratchet wheel so as to lock said spool in place when the vehicle body experiences more than the predetermined degree of deceleration.

4. A release system as recited in claim 2, wherein said cable is a Bowden cable.

5. A release system as recited in claim 1, wherein said emergency release control is built into a center pillar of the vehicle body.

6. A release system as recited in claim 1, wherein said spool-release lever is disposed within a console box of the vehicle body.

7. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked; and

an emergency release control comprising;

(a) a chassis mounted on the vehicle body,

(b) a manually actuated outboard slider slidably mounted on said chassis,

(c) an L-shaped control lever pivotably mounted at an angle thereof on the chassis, said L-shaped control lever having a relatively long arm pivotally linked with said outboard slider and having a relatively short leg, and

(d) a control terminal movable to exert a control power for actuating said emergency-releasing means, said control terminal being actuably associated with said short leg of said L-shaped control lever.

8. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked;

an emergency release control mounted on the vehicle body and comprising a control terminal movable to exert control power for actuating said emergency-releasing means and inboard and outboard manual actuation means for selectably moving said control terminal;

wherein said control terminal comprises a pin and said inboard manual actuation means comprises an inboard slider manually movable toward the outboard of the vehicle body and having an edge oblique to the direction of movement of said inboard slider, said edge being in contact with a cylindrical surface of said pin and moving said control terminal in response to the movement of said inboard slider; and

means for indicating the location of said emergency release control when the vehicle body has experienced more than the predetermined degree of deceleration.

9. A release system as recited in claim 8, wherein said control terminal comprises a pin and said outboard manual actuation means comprises an outboard slider manually movable toward the inboard of the vehicle body and having an edge oblique to the direction of movement of said outboard slider, said edge being in contact with a cylindrical surface of the pin and moving said control terminal in response to the movement of said outboard slider.

10. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked;

an emergency release control mounted on the vehicle body and comprising a control terminal movable to exert control power for actuating said emergency-releasing means and inboard and outboard manual actuation means for selectably moving the control terminal; and

means for indicating the location of said emergency release control when the vehicle body has experienced more than the predetermined degree of deceleration;

wherein said location indicating means comprises a light source provided between said inboard and outboard manual actuation means, photoconductive means respectively extending to the outboard and inboard of the vehicle body and receiving the light from said light source, photo-display means mounted on the inboard end of said photoconductive means and the outboard end of the photoconductive means, and a shock sensor sensitive to more than the predetermined degree of deceleration to energize said light source.

11. A release system as recited in claim 10, wherein said respective photoconductive means are fixed to said inboard and outboard manual actuation means.

12. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked;

an emergency release control mounted on the vehicle body and comprising a control terminal movable to exert control power for actuating said emergency-releasing means and inboard and outboard manual actuation means for selectably moving the control terminal; and

means for indicating the location of said emergency release control when the vehicle body has experienced more than the predetermined degree of deceleration;

wherein said emergency-releasing means comprises a hydraulic actuator driving said lock to a released state and a hydraulic pressure generator having an input lever and supplying said hydraulic actuator with hydraulic pressure; and

wherein said emergency release control includes a power transmitting cable actuating said input lever.

13. A release system as recited in claim 12, wherein said hydraulic pressure generator is enabled by an engine switch of the vehicle.

14. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked;

an emergency release control mounted on the vehicle body and comprising a control terminal movable to exert control power for actuating said emergency-releasing means and inboard and outboard manual actuation means for selectably moving the control terminal; and

means for indicating the location of said emergency release control when the vehicle body has experienced more than the predetermined degree of deceleration;

wherein said location indicating means comprises a hollow finish having an opening and surrounding an outboard end of said outboard manual actuation means, a light or audio source installed within said finish, and a shock sensor sensitive to more than the predetermined degree of deceleration to energize said light or said audio source, respectively.

15. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked;

an emergency release control mounted on the vehicle body and comprising a control terminal movable to exert control power for actuating said emergency-releasing means and inboard and outboard manual actuation means for selectably moving the control terminal; and

means for indicating the location of said emergency release control when the vehicle body has experienced more than the predetermined degree of deceleration;

wherein said location indication means comprises a hollow finish having an opening and surrounding an inboard end of said inboard manual actuation means, a light or audio source installed within said finish, and a shock sensor sensitive to more than the predetermined degree of deceleration to energize said light or said audio source, respectively.

16. A release system for a seat occupant restrained by a seat belt in a vehicle, comprising:

a seat belt retractor having a lock locking said seat belt retractor when a vehicle body experiences more than a predetermined degree of deceleration;

means for emergency-releasing said seat belt retractor after said seat belt retractor has been locked; and

an emergency release control comprising;

(a) a chassis mounted on the vehicle body,

(b) a straight inboard control lever having one end pivotably mounted on said chassis, said inboard control lever being manually actuated,

(c) a straight outboard control lever having one end pivotably mounted on said chassis, said outboard control lever being manually actuated, and

(d) a control terminal movable to exert a control power for actuating said emergency-releasing means said control terminal being actuably associated with an intermediate portion of said inboard and said outboard control levers, respectively.

17. A release system as recited in claim 16, wherein said seat belt retractor emergency-releasing means comprises a spool-release lever disabling said lock, and a cable transmitting the control power to actuate said spool-release lever.

18. A release system as recited in claim 17, wherein said seat belt retractor comprises a spool onto which the seat belt is wound which retracts the seat belt and a ratchet wheel fixed to said spool, and wherein said lock comprises a pawl brought into engagement with said ratchet wheel so as to lock said spool in place when the vehicle body experiences more than the predetermined degree of deceleration.