Trw Automotive Gmbh

Martin Roehrle

Markus Daeuber

Stefan Eisele

Thomas Kielwein

Wolfgang Holbein

Thomas Moedinger

Michael Sautter

Ralph Stegmaier

The invention relates to a belt retractor comprising a frame (), a belt reel () rotatably arranged within the frame, a blocking mechanism () by which the belt reel () can be blocked within the frame (), and a load limiter () which is detachably coupled to the belt reel (), characterized in that for coupling the load limiter () at least one load-transmitting bar () is used which is arranged at the belt reel () and is retained in a coupling position by a support ring (), wherein the support ring () can be moved from a supporting position to a release position by means of an actor ().

Belt retractor having a second force limiter

The invention relates to a belt retractor comprising a frame (), a belt reel () rotatably arranged within the frame (), a blocking mechanism () by which the belt reel () can be blocked within the frame (), and a load limiter which comprises a corrugated disk (), characterized in that the corrugated disk () is disposed between the belt reel () and a cover () which is laterally attached to the belt reel ().

Belt retractor having a force limiter

The invention relates to an actuator () for releasing a load limiter () of a belt retractor for a vehicle seat belt, comprising a case () which is adapted to be attached to a frame () of the belt retractor and includes a seat () in which a pyrotechnical actor () is arranged, characterized in that a retaining clip () for locking the actor () within the seat () is attached to the case (). The invention further relates to a belt retractor comprising a frame (), a belt reel () rotatably supported in the frame, a load limiter () which is detachably connected to the belt reel () and an actuator () of the afore-mentioned type, characterized in that the retaining clip () bears on the frame ().

Actuator for releasing a force limiter of a seatbelt retractor for a vehicle seatbelt, and seatbelt retractor having an actuator of this type

A force limiting device for a belt retractor is reversible from a higher restraining force level to a lower restraining force level by means of a reversing means during a force limiting phase, wherein the second restraining force level is largely determined by a performance of at least one force limiting element. The reversing means is arranged so that it accomplishes a significant work share upon reversing which is added to the performance of the force limiting element and thus temporarily increases the restraining force of the force limiting device. In this manner undershooting of the characteristic line of the force limiting device upon reversing to the lower restraining force level is compensated.

Force limiting device, belt retractor having a force limiting device, and method for switching over a force limiting device

A belt retractor () comprising a frame, a belt reel, a first force limiting means () coupled to the belt reel and a second force limiting means (), wherein the second force limiting means () can be locked and the first force limiting means () is arranged functionally in series with the second force limiting means (), is characterized in that the second force limiting means () includes a deformation element () and at least one deforming member () fixed to the frame, the deformation element () being adapted to be rotated relative to the deforming member () when the second force limiting means () is activated, whereby the deformation element () is deformed.

Belt retractor including a switchable belt force limiter

A force limiter for a vehicle safety belt includes a shaft and at least one metal strap, one end of which is attached to the shaft and which supports on a strap accommodation ring radially outside of the shaft. The distance between the strap accommodation ring and the shaft is variable.

Growing community of inventors

Mutlangen, Germany

Martin Roehrle