Seat integrated vehicle safety apparatus

• US 5,441,332 A
• Filed: 04/08/1994
• Issued: 08/15/1995
• Est. Priority Date: 04/08/1994
• Status: Expired due to Fees

• Current Assignee: TRW Vehicle Safety Systems Incorporated (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: TRW Vehicle Safety Systems Incorporated (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Verellen, Lawrence J.
• Primary Examiner(s): Brown, Peter R.
• Application Number:
  US08/225,445
• Time in Patent Office: 494 Days
• Field of Search: 297/468, 297/473, 297/483, 297/484, 297/475, 280/808
• US Class Current: 297/483
• CPC Class Codes: B60R 2022/207 Horizontally or transversally adjustable
• CPC Class Codes: B60R 22/20 adjustable in position, e.g. in height
• CPC Class Codes: B60R 22/26 secured to the seat

Abstract

A vehicle safety apparatus (10) includes a seat (12) for an occupant of a vehicle. A length of belt webbing (42) is extensible about the occupant of the vehicle seat to restrain the occupant. The length of belt webbing has a portion (48) extending from an upper portion (24) of the seat back (20). A belt webbing engaging member (76) is mounted on the seat back (20) for guiding movement of the belt webbing (48) from the seat back. The safety apparatus includes means (120) for mounting the belt webbing engaging member (76) on the seat back (20) for movement relative to the seat back in a direction between the seat back inboard side (28) and the seat back outboard side (26). In a preferred embodiment, the belt webbing engaging member is a seat belt retractor spool (76). The retractor spool (76) is mounted in the frame (62) of a retractor (60) for rotation about an axis (82). Shoulder belt webbing (48) is wound on the spool (76). The retractor (60) is movable relative to the seat back (20) to adjust the location from which the shoulder belt (48) extends across the torso of an occupant seated in the vehicle seat.

Claims

1. A vehicle safety apparatus comprising:

a seat for an occupant of a vehicle, said seat including a seat back, a seat cover covering said seat back, and an elongate opening in said seat cover on said seat back, said opening having first and second opposite ends;

a belt webbing engaging member;

a length of belt webbing extensible from said belt webbing engaging member about the occupant of the vehicle seat to restrain the occupant, said belt webbing comprising a torso portion extending from said belt webbing engaging member out of said seat back through said opening in said seat cover, said belt webbing having a width which is less than the length of said opening, said belt webbing being movable in a first direction into and out of said seat back through said opening in said seat cover to extend said belt webbing around the vehicle occupant;

means for supporting said belt webbing engaging member for movement in said seat back inside said seat cover in a second direction along the length of said opening between said first and second opposite ends of said opening, said second direction extending generally transverse to the length of said torso portion of said belt webbing and generally transverse to said first direction; and

manually actuatable adjusting means for driving said belt webbing engaging member for movement in said second direction to move said torso portion of said belt webbing along the length of said opening in said seat cover between a first position in which said torso portion extends through said opening at a first location adjacent to said first end of said opening in said seat cover and a second position in which said torso portion extends through said opening at a second location spaced from said first location and adjacent to said second end of said opening in said seat cover.

2. A vehicle safety apparatus as set forth in claim 1 wherein said belt webbing engaging member comprises a retractor spool which is supported for rotation about a first axis, said first axis extending generally parallel to said second direction, said retractor spool including at its axial ends a pair of circular radially extending side flanges which are spaced apart and between which said belt webbing extends, said retractor spool and said flanges positioning said belt webbing as said belt webbing engaging member moves in said second direction and guiding said belt webbing as said belt webbing moves through said opening in said first direction.

3. An apparatus as set forth in claim 2 comprising a retractor frame supporting said retractor spool for rotation relative to said retractor frame, said retractor frame including a back wall, opposed and spaced apart side walls extending perpendicularly from said back wall, and a transverse wall extending between said side walls and perpendicular to said back wall;

said seat back including a seat frame member which is fixed in position in said seat back, said retractor spool moving relative to the seat frame member and relative to the seat back upon movement of said retractor spool in said second direction, said transverse wall of said retractor frame sliding along said seat frame member, said retractor frame back wall sliding along a back wall of said seat frame member.

4. An apparatus as set forth in claim 2 wherein said means for supporting said belt webbing engaging member comprises a screw rotatable about a second axis extending generally parallel to said first axis and a nut connected for movement with said retractor spool in said second direction.

5. An apparatus as set forth in claim 2 wherein said seat back has an outboard side and an inboard side, said first axis extending generally horizontally in a direction between said inboard side of said seat back and said outboard side of said seat back.

6. An apparatus as set forth in claim 5 including means for mounting said retractor spool for separate vertical movement as well as for horizontal movement, said means for mounting including a second adjusting means including an intermediate mounting member to permit vertical adjustment of said retractor spool.

7. An apparatus as set forth in claim 1 wherein said opening extends at an angle to the horizontal, said belt webbing engaging member moving at least partially vertically during the movement of said belt webbing engaging member in said second direction.

8. An apparatus as set forth in claim 1 wherein said means for supporting said belt webbing engaging member comprises interengaging relatively movable first and second threaded members, one of said first and second threaded members being movable with said belt webbing engaging member relative to said seat upon relative movement between said first and second threaded members.

9. A vehicle safety apparatus comprising:

a seat for an occupant of a vehicle, said seat including a seat back, a seat cover covering said seat back, and an elongate opening in said seat cover on said seat back;

a seat belt webbing retractor spool;

means for supporting said retractor spool in said seat back inside said seat cover for rotation about a first axis;

a length of seat belt webbing extensible from said retractor spool about the occupant of the vehicle seat to restrain the occupant, said belt webbing comprising a torso portion extending from said retractor spool out of said seat back through said opening in said seat cover, said belt webbing having a width which is less than the length of said opening;

said retractor spool including at its axial ends a pair of circular radially extending side flanges which are spaced apart and between which said belt webbing extends;

means for supporting said retractor spool in said seat back for movement in said seat back in a first direction parallel to said first axis and along the length of said opening; and

manually actuatable adjusting means for driving said retractor spool for movement in said first direction to move said torso portion of said belt webbing along the length of said opening between a first position in which said torso portion extends through said opening at a first location and a second position in which said torso portion extends through said opening at a second location spaced from said first location;

said retractor spool and said flanges positioning and guiding said belt webbing laterally as it extends through said opening and exits said vehicle seat back.

10. An apparatus as set forth in claim 9 wherein said seat back has an outboard side and an inboard side, said first axis extending generally horizontally in a direction between said inboard side of said seat back and said outboard side of said seat back.

11. An apparatus as set forth in claim 10 including means for mounting said retractor spool for separate vertical movement as well as for horizontal movement, said means for mounting including a second adjusting means including an intermediate mounting member to permit vertical adjustment of said retractor spool.

12. An apparatus as set forth in claim 10 comprising a retractor frame supporting said retractor spool for rotation relative to said retractor frame, said retractor frame including a back wall, opposed and spaced apart side walls extending perpendicularly from said back wall, and a transverse wall extending between said side walls and perpendicular to said back wall, said transverse wall having a lower surface;

said seat back including a seat frame member which is fixed in position in said seat back, said retractor spool moving relative to the seat frame member and relative to the seat back, said lower surface of said retractor frame transverse wall sliding along an upper surface of said seat frame member, said retractor frame back wall sliding along a back wall of said seat frame member.

13. An apparatus as set forth in claim 9 wherein said opening and said first axis extend at an angle to the horizontal, said retractor spool thereby moving at least partially vertically during the movement of said retractor spool in said first direction.