Autoliv Development Ab

Autoflug Gmbh

Autoflug Gmbh & Co. Fahrzeugtechnik

Doris Kröger

Klaus Werner Butenop

Thomas Schmidt

Ronald Jabusch

Jens Ehlers

Volkmar Heine

Frank Fugel

Rene Rade

Jorg Barckmann

Volker Carstens

Klaus-Werner Butenop

Arne Bargmann

Michael Tohn

Anriruddha Deshpande

Michael Tonn

Klaus Butenop

A self-locking seat belt retractor includes a blocking system for a seat belt winding shaft that is actuated in an at least vehicle-sensitive manner, in which, in the event of triggering, a sensor mass mounted in a vehicle-sensitive manner moves a locking lever with its engagement tip into a trigger position in engagement with the toothing of a control disk, as the result of which the control disk in its joint rotational motion with the belt winding shaft is stopped and the blocking system is activated. The sensor mass is situated in a support part on a contact surface, and when vehicle accelerations occur the sensor mass in the support part is movable on the contact surface by inertial control from a neutral position into the trigger position. The support part together with the sensor mass situated therein is situated in a housing that includes the control disk. The housing with the support part and the sensor mass situated therein is fixable on the seat belt retractor in various rotational angle positions with respect to the control disk.

Self-locking belt retractor

A self-locking safety belt retractor has a blocking apparatus for a belt shaft mounted rotatably in a housing. The blocking apparatus includes a pawl inserted into a recess of the shaft front of the belt shaft which can be pivoted radially outward into engagement with the blocking apparatus. A blocking gearing () is oriented with respect to stop surfaces of the pawl () and to force transmission surfaces () of the recess () such that, when the gear teeth of the pawl () are engaged in the blocking gearing () under normal load, a force acts between the blocking gearing () and the belt shaft () in a radial direction. If the load increases in a crash case, a force is transmitted in the circumferential direction due to plastic deformation of at least one housing gear tooth () of the blocking gearing ().

Safety belt retractor with variable load transfer in different function settings

A self-locking belt retractor in particular for motor vehicles with a vehicle-sensitive and a webbing-sensitive control system for the blocking device of the belt retractor having an operatable toothed lock washer in a cased gearing.

Seat belt retractor with sensor cutoff

The inventive device for fixing a seat belt winder is fixed to the part of a motor vehicle. The plate of the housing of the winder is provided with at lest one fixing hole for receiving a screw connection which maintains the vehicle part embodied therein. The housing of said seat belt winder is arranged in such a way that it is rotatable with respect to the fixing hole of the vehicle part, thereby enabling the winder to be automatically oriented in a direction of a force of a belt which moves at an angle with respect to the axis of the shaft. Said fixing device is characterised in that the housing () of the winder is rotationally maintained on the holder part () which can be firmly connected to the vehicle part (). Said housing () is supported by the holder part () at a distance to the fixing hole () of the vehicle part () and is fixed to said holder part () in such away that the housing () of the seat belt winder is rotatable with respect the holder part () in an opposite direction to the action of a pre-set resistance.

Fixing device for a seat belt winder

Mass-body drive for a rotary tightening device

A self-locking safety-belt reeling device has a reeling shaft on which a safety-belt is wound. A blocking device that is controlled by at least a vehicle-sensitive control mechanism and/or a safety-belt-sensitive control mechanism for blocking the safety-belt reeling shaft is provided. A tightening device acting on the reeling shaft comprises a tightener coupling. The tightening device further has a drive disk. The drive disk, upon activation of the tightening device, is driven in rotation by a drive device and coupled with the tightener coupling to the reeling shaft. A power limiter is connected to the safety-belt reeling device for limiting removal of the safety belt, whereby the power limiter is activated and deactivated depending on the operational states of the safety-belt reeling device and the tightening device. The power limiter during blocking of the safety belt reeling device is inactive and is activated only after completion of a tightening movement of the safety belt. Preferably, the power limiter is a torsion rod.

Safety belt reeling device and safety belt tightening device combination

Safety belt reeling means with a tightening device comprising a drive which is activated in the event of an incident is provided. The drive is spaced from a belt winding spindle of the belt reeling means and is connectable thereto via a coupling in the event of actuation of the drive. The coupling comprises a first coupling member which is mounted on a driven disc so as to be capable of movement, in the event of rotation of the disc, to engage with a second coupling member connected to the belt winding spindle, the driven disc being constructed as an inertia disc which is adapted to be set in rotation by the drive. Preferably the drive is a piston/cylinder unit which transmits a rotary motion to the inertia disc via a piston rod and a crank pin.

Safety belt reeling mechanism

A safety belt reel-in mechanism having a tensioning arrangement. A piston is provided which is acted upon by pressure medium, and which is disposed at a distance relative to the belt reeling-in shaft of the belt reel-in mechanism, and can by connected with this shaft via a cable drive when the tensioning arrangement is triggered. The problem of heretofore known devices was that after the tensioning arrangement was triggered and the tensioning process was terminated, the belt reeling-in shaft was locked into position via the tensioning arrangement, and hence could no longer function as intended. To eliminate the resulting drawback that, after the tensioning arrangement is triggered, the belt reel-in mechanism no longer has a self-locking action, the present invention proposes disposing a spring-loaded locking member on the cable pulley which receives the drive cable. The locking member is adapted to engage appropriate elements on the belt reeling-in shaft to operatively connect this shaft and the cable pulley. This connection is disconnected after termination of the tensioning process.

Growing community of inventors

Tornesch, Germany

Doris Kröger