Belt retractor

Patent metadata

Field	Value
Publication number	US-2016016535-A1
Application number	US-201414773414-A
Country	US
Kind code	A1
Filing date	Mar 10, 2014
Priority date	Mar 12, 2013
Publication date	Jan 21, 2016
Grant date	—

Abstract

On a belt retractor ( 10 ) for a vehicle seat belt comprising a frame ( 12 ) provided with plural locking teeth ( 24 ), a belt reel ( 14 ) which is rotatably supported in the frame ( 12 ) and includes a locking tooth system ( 26 ) corresponding to the locking teeth ( 24 ), and comprising a locking mechanism adapted to transfer the belt reel ( 14 ) from a home position in which it is freely rotatable into a locking position in which the locking tooth system ( 26 ) of the belt reel ( 14 ) engages in the locking teeth ( 24 ) of the frame ( 12 ), wherein at least one pivoting control lever ( 28 ) is provided in which one side of the belt reel ( 14 ) is rotatably supported and which is adapted to guide the belt reel ( 14 ) from the home position into the locking position, an interlock mechanism is provided which releases the pivoting movement of the control lever ( 28 ) not before the latter has been rotated in the unwinding direction (A) of the webbing out of a home position into a release position.

First claim

1 - 10 . (canceled)

11 . A belt retractor ( 10 ) for a vehicle seat belt comprising a frame ( 12 ) provided with plural locking teeth ( 24 ), a belt reel ( 14 ) which is rotatably supported in the frame ( 12 ) and includes a locking tooth system ( 26 ) corresponding to the locking teeth ( 24 ), and comprising a locking mechanism adapted to transfer the belt reel ( 14 ) from a home position in which it is freely rotatable into a locking position in which the locking tooth system ( 26 ) of the belt reel ( 14 ) engages in the locking teeth ( 24 ) of the frame ( 12 ), wherein at least one pivoting control lever ( 28 ) is provided in which one side of the belt reel ( 14 ) is rotatably supported and which is adapted to guide the belt reel ( 14 ) from the home position into the locking position, wherein an interlock mechanism is provided for releasing the pivoting movement of the control lever ( 28 ) not before the latter has been rotated in the unwinding direction (A) of the webbing from a home position into a release position.

12 . The belt retractor according to claim 11 , wherein the interlock mechanism includes frame-side supporting faces ( 50 ).

13 . The belt retractor according to claim 12 , wherein the frame-side supporting faces ( 50 ) are arranged at an angular distance from each other.

14 . The belt retractor according to claim 11 , wherein the interlock mechanism includes supporting faces ( 54 ) on the control lever side.

16 . The belt retractor according to claim 14 , wherein the control lever-side supporting faces ( 54 ) are arranged at an angular distance from each other.

16 . The belt retractor according to any claim 12 , wherein the supporting faces ( 50 , 54 ) have sliding faces ( 52 , 56 ) extending inclined with respect to the circumferential direction.

17 . The belt retractor according to claim 11 , wherein the control lever ( 28 ) is arranged on the frame side by means of a bearing.

18 . The belt retractor according to claim 17 , wherein the bearing consists of a slotted hole ( 36 ) and a pivot in ( 38 ) engaging in said slotted hole ( 36 ).

19 . The belt retractor according to claim 18 , wherein the pivot pin ( 38 ) is provided at a bearing shell ( 30 ) arranged on the frame.

20 . The belt retractor according to claim 18 , wherein the slotted hole ( 36 ) is provided at the control lever ( 28 ).

Assignees

• Trw Automotive Gmbh

Inventors

• Kielwein Thomas
• Michel Frederic

Classifications

• B60R22/36 Primary

  self-locking in an emergency ({B60R22/3405} , B60R22/343 take precedence) · CPC title

• B60R2022/3402

  Retractor casings; Mounting thereof · CPC title

• B60R22/34

  Belt retractors, e.g. reels (anchoring devices {, e.g. guide loops} , with means to tension the belt in an emergency B60R22/195) · CPC title

• B60R22/3413 Primary

  operating between belt reel and retractor frame (B60R22/4676 takes precedence) · CPC title

• B60R22/40

  responsive only to vehicle movement · CPC title