Trw Automotive Gmbh

Trw Occupant Restraint Systems Gmbh & Co. Kg

Zf Automotive Germany Gmbh

Bernd Gentner

Andreas Pregitzer

Thomas Moedinger

Oliver Gross

Nizam Bedak

Martin Nuding

Thomas Kielwein

Joachim Biller

Herbert Blum

Thomas Modinger

Marco Wahl

Thomas Mödinger

Simon Kramer

Juergen Rink

Swen Schaub

Simon Gargallo

Andreas Henning

Günter Burkhardtsmaier

Christian Muecke

Malke Seiler

A belt retractor () of a seatbelt system comprises a belt tensioner () which is adapted to rotate a belt reel () of the belt retractor () accommodated in a belt retractor frame (), wherein the belt retractor frame () is closed by a cover () on the tensioner side in the area of the spindle of the belt reel () and in the cover () a bearing for the belt reel () is provided. The cover () includes a first pot-shaped cover part () which is mounted directly on the belt retractor frame () and has a side wall () merging into a flat portion (). In the flat portion () an opening () is spared and a second cover part () is provided which engages in the opening () in the first cover part () and on which a bearing () is formed in which an end () of the spindle of the belt reel () is supported.

Belt tightener

A force-limiting device, especially for a seat belt system () in a vehicle, has a force transducer () interacting with webbing () for which a normal webbing path is provided. The force transducer () includes a webbing track () that in a non-force-limiting position extends in parallel to the normal webbing path and in a force-limiting position extends inclined relative to the normal webbing path so that the force transducer () in the force-limiting position sets a predetermined extension force (F) required to move the webbing () vis-&#xe0;-vis the force transducer () in a direction of belt extension (R).

Force-limiting device and seat belt system

In a belt tensioner () for a seat belt comprising an elongate pressure reservoir (), a piston () movably supported in the pressure reservoir () in the longitudinal direction to which piston pressurized fluid can be applied and which in this way can be moved in a tensioning direction (S), a mechanical thrust means () interacting with the piston, the thrust means interacting with a gearwheel () and driving the same in the case of restraint, and comprising a stop () on which the piston () abuts in the tensioning direction in a final position, it is provided that between the piston () and the thrust means () a spacer () in the form of a separate member is provided which is dimensioned such that in the final position of the piston () the thrust means () is urged past the stop () by said spacer. Furthermore there is provided a method of mounting a belt tensioner of this type.

Belt tensioner and method for installing a belt tensioner

A belt retractor includes a retractor frame () having first and second end faces () between which a belt reel () is pivoted. The belt retractor further includes a belt tensioner and a spring cassette () having a helical spring () coupled to the belt reel (). The spring cassette () is arranged between the first end face () of the retractor frame () and at least one component of the belt tensioner. A method of fitting such belt retractor includes mounting the spring cassette () on a component of the belt tensioner, especially on an inside of a tensioner casing () and mounting the belt tensioner including the spring cassette () on the retractor frame (), especially on an end wall () of the retractor frame (). An alternative fitting method includes mounting the spring cassette () on an end wall () of the retractor frame () and attaching the belt tensioner to the spring cassette () mounted on the end wall () of the retractor frame ().

Seatbelt retractor for a seatbelt system and method for installing a seatbelt retractor

A belt tensioner for a belt retractor having a load limiter includes a pivoted pinion () coupled to a belt reel, a drive unit and a load transmission element () moved by the drive unit. The load transmission element () engages in the pinion () so as to rotate the pinion in a tensioning direction A. The load transmission element () is designed so that in the rotational position adopted by the pinion () after being rotated by the load transmission element () a part () of the load transmission element () engages in the pinion (). A method of tensioning a seat belt by means of a belt tensioner and subsequent load limitation by means of a load limiter includes moving a load transmission element () by a drive unit in a first direction so that the load transmission element () engages in a pinion () coupled to a belt reel (). The rotating the pinion () is rotated by the moved load transmission element () in a tensioning direction A. When the rotation of the pinion () is completed it is ensured that a part () of the load transmission element () engages in the pinion ().

Seatbelt tensioner with a force-limiting device, and method thereof

In the method for mounting an inflator () within a tube (), especially of a belt tensioner, wherein an end portion () of the tube () is formed radially inwardly so that a first contact surface () directed to the interior of the tube () occurs, prior to forming an annular stabilizing disk () is arranged between the first contact surface () and a second contact surface () configured at the inflator ().

Method for mounting a gas generator, and subassembly comprising a gas generator

A drive wheel for a belt tensioner is adapted to be coupled to a belt reel and includes an external tooth system including plural teeth distributed along the circumference. The teeth are inclined in a first circumferential direction and/or the teeth have at least one end face facing away from the central axis of the drive wheel and being inclined in a first circumferential direction and/or the clearances between neighboring teeth are not symmetrical with respect to planes defined by radial and axial directions. The teeth have no symmetry with respect to planes extending tangentially relative to the circumferential direction.

Driving wheel for seatbelt tensioners and seatbelt tensioners for a seatbelt system

A seat belt retractor () comprises a frame (), a belt reel () which is rotatably mounted in the frame (), and a blocking pawl () which is provided at the belt reel () and is capable of engaging with a blocking teeth system (). The blocking teeth system () is provided at a blocking ring () which is mounted at the frame () in a rotationally limited manner.

Seat belt retractor

A belt retractor has a frame (), a belt spool () that is rotatably mounted in the frame (), and a force limiter () that is adapted to reach a force limiting position. A guide-in mechanism () is provided which causes the force limiter () to reach the force limiting position as a function of the length of belt webbing withdrawn.

Belt retractor

A rotation damper, particularly for damping the rotary movement of a belt retractor shaft of a vehicle safety belt, has a housing which delimits a working space filled with a damping medium, and an element which is rotatable relative to the housing. Several pins serving as resistance elements, which extend into the working space, are provided on the element.

Rotation damper

A belt retractor for a vehicle safety belt has a frame, a belt spool for the safety belt which is rotatably arranged in the frame, a locking disc which is arranged on the belt spool and is connected therewith through an energy absorption element, and a blocking mechanism which allows to block the locking disc against a rotation in the unwinding direction of the safety belt in the frame. A detent is provided which is movably arranged in the belt spool and can prevent a rotation of the locking disc relative to the belt spool as a function of its position.

Belt retractor for a vehicle safety belt

A belt spool comprising a spool body and a torsion rod having a first end and a second end, the torsion rod being provided with a torque transmission profile at the first end, in order to be coupled with the spool body, a transmission element being connected with the torque transmission profile of the torsion rod, and a stop element cooperating with the transmission element and being coupled with the spool body.

Belt spool

A belt retractor for a vehicle occupant seat belt has a belt reel (), a locking disc () and a force limiting element (), the force limiting element () being provided with a thread () and the force limiting element () acting between the belt reel () and the locking disc () so that a translational movement is generated when a relative rotation between the belt reel () and the locking disc () takes place.

Belt retractor for a vehicle occupant seat belt

A force limiter is provided on a belt retractor. The belt retractor comprises a belt spool () that is rotatably mounted in a frame () and has at least one flange () and a disk () that can be non-rotatably blocked on the frame. The disk () and the flange () of the belt spool () are adapted to be coupled by a cutting element (). The cutting element (), with a relative rotation between the disk () and the flange (), comes into a coupling position and cuts material when the relative rotation is continued.

Growing community of inventors

Ellwangen/Pfahlheim, Germany

Bernd Gentner