Abstract: 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.

Abstract: 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. The control system comprises a cam disc rotating with the belt shaft, coupled to the toothed lock washer and inertially formed to form the webbing-sensitive controller with external gearing for the engagement of a sensor lever of a vehicle sensor arranged on the belt retractor, whereby at least one catch lever is provided controlled by the rotation of the belt shaft and rotatable between an engaged and a disengaged position for switching the vehicle sensor off in a function range in which almost the whole of the seatbelt is retracted onto the belt shaft.

Abstract: A rotary tightening device for a safety belt has a belt retractor including a housing and a belt take-up shaft rotatably supported in the housing. The belt-take-up shaft has one end of the safety belt connected thereto. Upon triggering of the rotary tightening device, the belt take-up shaft is rotated in a belt take-up direction of the safety belt. A drive wheel is connected to the shaft. The housing has a channel extending in a plane parallel to a radial plane of the drive wheel and extending at least partially about a circumference of the drive wheel. Mass bodies are positioned loosely adjacent to one another in the channel. The mass bodies, when accelerated, act on the drive wheel for driving it. The drive wheel has at the circumference a gearing in which the mass bodies are received for driving the drive wheel. A spacing of the gearing is substantially identical to a spacing between the mass bodies.

Abstract: 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.

Abstract: A self-locking safety belt reeling device for a safety belt system of motor vehicles, comprising a casing and a reeling shaft having at one end an eccentric locking member, is provided. The locking member, depending on a radial deflection resulting from a safety belt-sensitive and vehicle-sensitive locking system, contacts abutments fastened to the casing and locks the reeling shaft. The locking member is coupled with a control disk having first outer toothing and which is lockable by the vehicle-sensitive locking system embodied as a spherical sensor having a sensor lever. The safety belt-sensitive locking system is embodied as a pivotable spring-loaded inertia mass that cooperates with the locking member. The locking member is pivotable into engagement with an inner toothing provided at a bearing cup connected to the casing. The inner toothing is connected to a second outer toothing.

Abstract: 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.

Abstract: A self-locking belt reel-in mechanism for safety belts, especially of motor vehicles, including a housing and a belt reeling-in shaft mounted therein so that it cannot be displaced axially, but can be displaced radially under the effect of locking forces. The shaft can be arrested at both ends in toothings secured to the housing. The mechanism is accommodated in relatively narrow structural parts of the vehicle, such as the B-columns; thus, overall size is no problem. Furthermore, the load is to act uniformly upon the shaft in the event of high-load (a crash). In contrast, for normal operation it is only necessary to arrest one end of the shaft. One of the arresting arrangements is in the form of a locking member disposed in a recessed portion in the associated end of the belt reeling-in shaft. The depth of the recessed portion is such that the locking member is flush relative to the plane of the associated opening of the housing.

Abstract: 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.

Abstract: An inertial mass having the shape of a metallic ring is held by projections provided on an inertial element. The element is composed of two associated parts, one of which produces the desired inertia. The parts are connected by a snap fit. In one embodiment, the ring includes a curved metallic wire having a gap into which a flange or projection of the inertial element projects.

Abstract: A roll-up device, particularly for safety belts used in vehicles. The device provides a so-called automatic belt blocker with belt-sensitive and/or vehicle-sensitive blocking of the belt winding spindle, which is provided with a projection which cooperates with a locking member, which in turn can be locked in place via detents which engage with notches associated with a housing. There is the problem that, in the event of high belt forces, the locking member will slip away from the projection, and thus from the notches of the housing, thereby freeing the blockage. The aim of the invention is therefore to prevent the locking member from breaking out of its predetermined position in this way. To solve this problem, at least one overlapping arrangement is provided between the projection of the belt winding spindle, and the radially deflectable locking member, to ensure that the locking member does not move out of its position in the axial direction of the belt winding spindle during blocking.

Abstract: A self-locking belt reeling mechanism for buckle-on safety belts, particularly safety belts in motor vehicles. The mechanism has a spindle which is mounted in a housing, is subjected to spring tension, and on which the belt can be rolled up, and an inertial locking member which is eccentrically mounted on one end of the spindle and which, in the event of a predetermined acceleration in the rotation of the spindle in the direction of unrolling of the belt, moves outwards and makes contact with stops in the form of a ring of teeth integral with the housing. The locking member has a curved recess with at least one further stop, into which recess engages an attachment provided on the end of the spindle. This attachment acts as a stop for the locking member during any relative movement between the spindle and the locking member. The eccentric point for the eccentric mounting of the locking member is arranged at least on the circumferential line of the spindle, preferably outside this line.