Vehicle seat belt guide

• US 4,312,539 A
• Filed: 01/07/1980
• Issued: 01/26/1982
• Est. Priority Date: 03/17/1979
• Status: Expired due to Term

• Current Assignee: Juichiro Takada
• Original Assignee: Juichiro Takada
• Inventors: Takada, Juichiro
• Primary Examiner(s): McCall, James T.
• Application Number:
  US06/109,983
• Time in Patent Office: 750 Days
• Field of Search: 297/483, 297/468, 297/476, 24/136 K, 24/136 R, 24/115 M, 24/68 SB, 24/171, 24/183, 24/194, 24/196, 24/200, 280/808
• US Class Current: 297/468
• CPC Class Codes: B60R 22/19 with means for reducing belt tension during use under normal conditions included in the retractor B60R22/44

Abstract

A belt guide for use in a vehicle occupant restraint belt system of the type which has a belt retractor that exerts a generally constant retracting force on the belt. The belt guide includes a frame having a passage for the belt, a guide roller located on the frame at a point adjacent to the passage and a belt clamping member mounted on the frame for movement between a release position out of engagement with the belt and a stop position in which the belt is clamped between the clamping member and either the belt guide roller or a portion of the passage in the frame. When the clamping member engages the belt in the stop position, the belt is prevented from being retracted.

Claims

1. A belt guide for a vehicle occupant restraint belt system of the type having a belt retractor which exerts a generally constant retracting force on the belt comprising a frame having a passage for guiding the belt, a belt-turning guide roller mounted on the frame for rotation adjacent the passage and engaging the belt generally transversely, and a belt clamping member mounted on the frame for movement between a release position out of engagement with the belt and a stop position in which the clamping member clamps the belt against one of said belt guide roller and a portion of said passage to prevent retraction of the belt, wherein the belt clamping member includes a resilient arm having a lower end pivotably supported by the frame, a center portion positioned to clamp the belt against the guide roller and an upper portion received in an elongated guide slot in the top of the frame, the slot having a latching offset portion for retaining the clamping member in a position in which the belt is resiliently clamped between the center portion of the clamping member and the guide roller.

3. A belt guide according to either of claims 1 or 2 for use in conjunction with a vehicle seat having a folding back connected to the seat portion by a pivotable mounting bracket and further comprising a support arm carrying the frame at its upper end and pivotably attached at its lower end to the side of the seat, and a link pivotably connected to the bracket and the arm so that the support arm cooperatively pivots forward when the seat back is pivoted forward.

2. A belt guide for a vehicle occupant restraint belt system of the type having a belt retractor which exerts a generally constant retracting force on the belt comprising a frame having a passage for guiding the belt, a belt-turning guide roller mounted on the frame for rotation adjacent the passage and engaging the belt generally transversely, and a belt clamping member mounted on the frame for movement between a release position out of engagement with the belt and a stop position in which the clamping member clamps the belt against one of said belt guide roller and a portion of said passage to prevent retraction of the belt, wherein the clamping member is pivotably mounted on the frame to be manually pivoted on an axis spaced from and lying transverse to a surface defining the belt passage and having a clamping surface located to clamp the belt against the said passage surface when the member is in the stop position, and further comprising a spring engaged between the frame and the clamping member and urging the member toward the release position.

4. A belt guide according to claim 2 wherein the direction of movement of the clamping surface from the stop position to the release position corresponds to the unwinding direction of belt movement.

5. A belt guide according to claim 2 wherein said passage surface is a notch into which the clamping member tucks the belt.