Apparatus for restricting relative movement of belt portions

• US 5,005,910 A
• Filed: 07/06/1989
• Issued: 04/09/1991
• Est. Priority Date: 07/06/1989
• Status: Expired due to Fees

• Current Assignee: TRW Vehicle Safety Systems Incorporated Lyndhurst Cuyahoga Ohio
• Original Assignee: TRW Vehicle Safety Systems Incorporated (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Itkis, Isaak A., LaFrate, Louis A.
• Primary Examiner(s): Chen, Jose V.
• Application Number:
  US07/376,313
• Time in Patent Office: 642 Days
• Field of Search: 297/483, 297/468, 297/482, 280/801, 280/808, 24/685 B, 24/68 A, 24/715 B, 24/170, 24/171, 24/490
• US Class Current: 297/483
• CPC Class Codes: A44B 11/10 sliding wedge
• CPC Class Codes: B60R 22/30 Coupling devices other than buckles, including length-adjusting fittings or anti-slip devices adaptations of manual three-point seat belt systems for use by small passengers using other means than belt anti-slip devices B60R22/024; buckles A44B11/00; releasable fastenings in general F16B
• CPC Class Codes: Y10T 24/4016 Pivoted part or lever
• CPC Class Codes: Y10T 24/4019 Sliding part or wedge

Abstract

An apparatus for restricting relative sliding movement of first and second belt portions arranged in an overlapping side-by-side relationship is usable with a three-point safety seat belt system for securing a child'"'"'s seat on a vehicle seat. The apparatus includes a V-shaped member having a pair of leg portions and a bight portion interconnecting the leg portions. The V-shaped member has an opening in the bight portion. A bar is pivotally connected to the leg portions of the V-shaped member. When it is desired to secure a child'"'"'s seat on a vehicle seat, the lap belt portion is extended around the child'"'"'s seat and a tongue plate slidably fastened to the lap and shoulder belt portions is secured to a belt buckle. With the bar in an open position, a loop formed from overlapped lap and shoulder belt portions of the seat belt webbing adjacent the tongue plate is inserted through the opening in the bight portion of the V-shaped member. The bar is received in the loop and is moved to a closed position between the leg portions. The bar clamps the lap and shoulder belt portions of the loop against the V-shaped member when tension is applied at least to one of the belt portions to restrict relative sliding movement of the lap and shoulder belt portions.

Claims

1. An apparatus for use with a first belt portion and a second belt portion arranged in a lengthwise overlapping side-by-side relationship with the first belt portion, said apparatus comprising:

a first member having a pair of leg portions and a bight portion interconnecting said leg portions, said first member having an opening in said bight portion for receiving a loop formed from the overlapping first and second belt portions;

each of said leg portions including a surface against which a part of one of the overlapping belt portions is engagable, the surfaces of said leg portions extending away from said bight portion and diverging relative to each other as they extend away from said bight portion; and

a second member having a portion thereof pivotally connected to a portion of said first member and between said pair of leg portions of said first member, said second member being receivable in the loop for, when said second member is received in the loop and tension is applied to a belt portion, engaging the other one of the overlapping belt portions into engagement with respective diverging surfaces of said leg portions to clamp the overlapping belt portions between said second member and the diverging surfaces of said leg portions and thereby restrict relative sliding movement of the first and second belt portions, said first and second members clamping the overlapping belt portions along spaced apart parallel lines at locations of the overlapping belt portions spaced apart along the length of the overlapping belt portions.

2. The apparatus of claim 1 wherein a portion of said first member is coated with a nylon material.

3. The apparatus of claim 1 wherein the opening in said bight portion is an elongate slot having expanded opening portions at opposite axial ends of the elongate slot.

4. An apparatus for use in a three-point safety seat belt system having a lap belt portion and a shoulder belt portion, said apparatus comprising:

a first member having an opening for receiving a loop formed from a part of the lap belt portion and a part of the shoulder belt portion which are arranged in a side-by-side overlapping relationship, said first member being a V-shaped member having a bight portion interconnecting a pair of leg portions, the opening in said first member being an elongate slot located in the bight portion of said V-shaped member, the elongate slot having curved expanded opening portions at opposite axial ends of the elongate slot, the elongate slot being located in parts of said leg portions adjacent said bight portion; and

a second member having a portion thereof pivotally connected to a portion of said first member and between said pair of leg portions of said first member, said second member being movable relative to said first member and being receivable in the loop formed by said parts of the lap and shoulder belt portions for clamping part of the loop against said first member when tension is applied to at least one of the belt portions to restrict relative sliding movement of said parts of the lap and shoulder belt portions.

5. The apparatus of claim 4 wherein said second member is a bar pivotally connected at one end to said leg portions of said V-shaped member, said bar being movable between an open position away from said opening and a closed position clamping said part of the loop against said leg portions of said V-shaped member.

6. An apparatus for use in a three-point safety seat belt system having a lap belt portion and a shoulder belt portion, said apparatus comprising:

a first member having an opening for receiving a loop formed from a part of the lap belt portion and a part of the shoulder belt portion which are arranged in a side-by-side overlapping relationship, said first member being a V-shaped member having a bight portion interconnecting a pair of leg portions;

a second member having a portion thereof pivotally connected to a portion of said first member and between said pair of leg portions of said first member, said second member being movable relative to said first member and being receivable in the loop formed by said parts of the lap and shoulder belt portions for clamping part of the loop against said first member when tension is applied to at least one of the belt portions to restrict relative sliding movement of said parts of the lap and shoulder belt portions;

the opening in said first member being an elongate slot located in the bight portion of said V-shaped member, the elongate slot having curved expanded opening portions at opposite axial ends of the elongate slot; and

said V-shaped member including a first elongate projection projecting from one of said leg portions of said V-shaped member and a second elongate projection projecting from the other one of said leg portions of said V-shaped member, said first and second elongate projections extending parallel to the elongate slot and being located on opposite sides of the elongate slot.

7. The apparatus of claim 6 wherein said V-shaped member includes third and fourth projections projecting from parts of said bight portion and extending transversely to the slot and to said first and second projections, said third and fourth projections being located at opposite axial ends of the elongate slot for providing rigidity and reinforcement of said V-shaped member.

8. An apparatus for use with a first belt portion and a second belt portion arranged in an overlapping side-by-side relationship with the first belt portion, said apparatus comprising:

a first member having a pair of leg portions and a bight portion interconnecting said leg portions, said first member having an opening in said bight portion for receiving a loop formed from the overlapping first and second belt portions, the opening in said bight portion being an elongate slot having expanded opening portions at opposite axial ends of the elongate slot, the elongate slot being located in said bight portion of said first member and being located in parts of said leg portions adjacent said bight portion; and

a second member having a portion thereof pivotally connected to a portion of said first member and between said pair of leg portions of said first member, said second member being receivable in the loop for clamping part of the loop against said first member when tension is applied to at least one of the belt portions to restrict relative sliding movement of the first and second belt portions.

9. The apparatus of claim 8 wherein said second member is a bar pivotally connected at one end of said leg portions, said bar being movable between an open position away from the elongate slot and a closed position in the loop clamping said part of the loop against said leg portions of said first member.

10. An apparatus for use with a first belt portion and a second belt portion arranged in an overlapping side-by-side relationship with the first belt portion, said apparatus comprising:

a first member having a pair of leg portions and a bight portion interconnecting said leg portions, said first member having an opening in said bight portion for receiving a loop formed from the overlapping first and second belt portions;

a second member having a portion thereof pivotally connected to a portion of said first member and between said pair of leg portions of said first member, said second member being receivable in the loop for clamping part of the loop against said first member when tension is applied to at least one of the belt portions to restrict relative sliding movement of the first and second belt portions;

the opening in said bight portion being an elongate slot having expanded opening portions at opposite axial ends of the elongate slot; and

said first member including a first elongate projection projecting from one of said leg portions and a second elongate projection projecting from the other of said leg portions, said first and second elongate projections extending parallel with the elongate slot and being located on opposite sides of the elongate slot.

11. The apparatus of claim 10 wherein said first member includes third and fourth projections projecting from parts of said bight portion and extending transversely to the elongate slot and to said first and second elongate projections, said third and fourth projections being located at opposite axial ends of the elongate slot for providing rigidity and reinforcement of said first member.