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US 12,617,370 B2Granted
Self-locking belt retractor
AssigneeAutoliv Development AB
InventorsJulian Strauss, Markus Hueg, Arne Bargmann
Life of this patent
Estimating the term…
Abstract
A self-locking belt retractor comprising a belt shaft which is rotatably mounted in a frame, wherein a safety belt can be wound up said belt shaft, a blocking device which blocks the belt shaft if a predetermined feed-out acceleration of the safety belt in the feed-out direction of the safety belt is exceeded, and comprising a control disc device mounted on the belt shaft, the control disc device comprising a control disc and an inert mass which is mounted on the control disc so as to be pivotable about a pivot axis.
Claims10
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus superimposes and pretensions the inertia mass parallel to the pivot axis in the direction of the control disc.
5 more elements
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus is provided, which pretensions the inertia mass parallel to the pivot axis in the direction of the control disc;
- the pretensioning apparatus has a deflectable spring arm which extends parallel to the control disc;
- and
- the spring arm has a receptacle for a protrusion designed on the inertia mass to form the pivot axis.
8 more elements
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus is provided, which pretensions the inertia mass parallel to the pivot axis in the direction of the control disc;
- the pretensioning apparatus has a deflectable spring arm which extends parallel to the control disc;
- and
- the spring arm has a protrusion which engages in a receptacle in the inertia mass to form the pivot axis.
8 more elements
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus is provided, which pretensions the inertia mass parallel to the pivot axis in the direction of the control disc;
- the pretensioning apparatus has a deflectable spring arm which extends parallel to the control disc;
- and
- a deflectable end of the spring arm is surrounded at least in portions by a locking web.
8 more elements
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus is provided, which pretensions the inertia mass parallel to the pivot axis in the direction of the control disc;
- the pretensioning apparatus has a deflectable spring arm which extends parallel to the control disc;
- and
- the spring arm has a stop projecting in the direction of the control disc at a distance from its deflectable end.
8 more elements
A self-locking belt retractor having
- a frame,
- a belt shaft rotatably mounted in the frame, on which a safety belt can be wound,
- a blocking apparatus which blocks the belt shaft when a predetermined pull-out acceleration of the safety belt is exceeded in the pull-out direction of the safety belt, and
- a control disc device mounted on the belt shaft, wherein the control disc device comprises
- a control disc and
- an inertia mass which is pivotably mounted on the control disc about a pivot axis,
- wherein
- a pretensioning apparatus is provided, which pretensions the inertia mass parallel to the pivot axis in the direction of the control disc;
- at least one tapering protrusion is provided to form the pivot axis;
- and
- exactly two tapering protrusions are arranged on opposite sides of the inertia mass.
8 more elements
Dependencies are inferred from the claim text.