Belt retractor having a second force limiter
AssigneeTRW Automotive GmbH
InventorsMarkus Daeuber, Stefan Eisele, Martin Roehrle
Life of this patent
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Abstract
The invention relates to a belt retractor comprising a frame (10), a belt reel (12) rotatably arranged within the frame, a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10), and a load limiter (14) which is detachably coupled to the belt reel (12), characterized in that for coupling the load limiter (14) at least one load-transmitting bar (28) is used which is arranged at the belt reel (12) and is retained in a coupling position by a support ring (32), wherein the support ring (32) can be moved from a supporting position to a release position by means of an actor (70).
Claims20
A belt retractor comprising a frame (10), a belt reel (12) rotatably arranged within the frame, a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10), and a load limiter (14) being detachably coupled to the belt reel (12), wherein for coupling the load limiter (14) at least one load-transmitting bar (28) is used which is arranged at the belt reel (12) and is retained in a coupling position by a support ring (32), the at least one load-transmitting bar (28) engaging driving toothing (26) of the load limiter (14) when the at least one load-transmitting bar is in the coupling position, wherein the support ring (32) can be moved from a supporting position to a release position by means of an actor (70).
A belt retractor, comprising:
- a frame (10);
- a belt reel (12) rotatably arranged within the frame (10);
- a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10);
- a load limiter (14) being detachably coupled to the belt reel (12);
- at least one load-transmitting bar (28) arranged at the belt reel (12), the at least one load-transmitting bar (28) having a coupling position in which the at least one load-transmitting bar couples the load limiter (14) to the belt reel (12);
- a support ring (32) being movable between a supporting position in which the support ring retains the at least one load-transmitting bar (28) in the coupling position and a release position in which the support ring releases the at least one load-transmitting bar from the coupling position;
- a holder (34) for retaining the support ring (32) in the supporting position;
- the holder (34) being provided with plural retaining arms (68) that fix the support ring (32) in an axial direction;
- and
- an actor (70) for moving the support ring (32) from the supporting position to the release position.
A belt retractor, comprising:
- a frame (10);
- a belt reel (12) rotatably arranged within the frame (10);
- a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10);
- a first load limiter (14) detachably coupled to the belt reel (12);
- a second load limiter (36) connected to the first load limiter (14) in a rotationally fixed manner, the second load limiter (36) engaging and being rotatable relative to a surface (46) of the belt reel (12), rotation of the second load limiter (36) being countered by at least the friction between the second load limiter and the surface (46) of the belt reel (12);
- at least one load-transmitting bar (28) arranged at the belt reel (12), the at least one load-transmitting bar (28) having a coupling position in which the at least one load-transmitting bar couples the first load limiter (14) to the belt reel (12);
- a support ring (32) being movable between a supporting position in which the support ring retains the at least one load-transmitting bar (28) in the coupling position and a release position in which the support ring releases the at least one load-transmitting bar from the coupling position;
- and
- an actor (70) for moving the support ring (32) from the supporting position to the release position.
A belt retractor, comprising:
- a frame (10);
- a belt reel (12) rotatably arranged within the frame (10);
- a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10);
- a load limiter (14) being detachably coupled to the belt reel (12);
- at least one load-transmitting bar (28) arranged at the belt reel (12), the at least one load-transmitting bar (28) having a coupling position in which the at least one load-transmitting bar couples the load limiter (14) to the belt reel (12);
- a support ring (32) being movable between a supporting position in which the support ring retains the at least one load-transmitting bar (28) in the coupling position and a release position in which the support ring releases the at least one load-transmitting bar from the coupling position;
- a holder (34) for retaining the support ring (32) in the supporting position, a portion of the holder (34) that retains the support ring (32) in the supporting position being overcome as the support ring moves from the supporting position to the release position;
- and
- an actor (70) for moving the support ring (32) from the supporting position to the release position.
Dependencies are inferred from the claim text.