Abstract: Belt-lock and plug-in tongue for a safety belt having a locking mechanism with two locking latches for locking the tongue, tensioned against each other by a spring, and with one locking latch disposed on each side of the plug-in tongue. A hand-actuated member is movable against disengaging means of the locking mechanism to simultaneously move the two locking latches out of engagement with the tongue to permit removal of the tongue from the lock-housing. This assures symmetrical absorption by the belt lock through the latches of forces introduced by the belt system, and also equal distribution of the pulling forces to both locking latches so that the effective forces at each locking latch are halved.

Abstract: Roll-up device for a safety belt with a mechanism for blocking the belt shaft in case of a crash. Blocking is effected by locking pawl means coupled with the belt shaft and activated by release mechanism. The belt shaft has two sets of bearings (a) the belt shaft is supported by bearings with little play and little friction and which are elastically yielding to high pull forces which occur in case of a crash, and (b) the belt shaft is simultaneously centered in stable load bearings of the basic frame with radial bearing play on all sides.

Abstract: Swivel fitting for fitting parts of a safety belt which are connectible together in a swivel relationship, including a first fitting part having a fitting portion and a cylindrically-shaped bearing eye integral therewith, the bearing eye having a truncated cutout formed therein with the wide part thereof disposed adjacent to the fitting portion and the narrow part thereof forming a centering slot centrally disposed in the cylindrical bearing eye, a plastic cylinder having a slot formed therein and being inserted in the bearing eye, a second fitting part having a substantially T-shaped extension integral therewith with a center leg and two side legs, the T-shaped extension being radially insertable into the slot formed in the plastic cylinder through the wide part of the cutout formed in the bearing eye and the center leg thereof being swingable into the narrow part of the cutout formed in the bearing eye and form-lockable therein in the axial direction of the bearing eye in an operating position.

Abstract: Automatic wind-up roller for a safety belt with means to block the belt roller in case of danger. The wind-up roller has an automatic release mechanism which is activated when the vehicle exceeds a predetermined acceleration or deceleration. The automatic release mechanism when activated in turn activates a control element, wherein at least two locking pawls, preferably arranged at opposite sides of the belt shaft, are caused to interact with locking tooth means to block the belt roller. Means are provided to obtain simultaneous operation of both pawls by a single control element.

Abstract: Safety belt roll-up device with a release mechanism which in case of danger activates a control disk and locking means which block the belt shaft. A cam having an actuating dog for actuating the locking means is associated coaxially with the control disk and rotatable relative thereto. A spring holds the dog in a predetermined starting position relative to the control disk, which spring can be deflected resiliently relative to the control disk in opposite directions of rotation. Because of its ability to be deflected in oppsite directions, a single type roll-up device will serve where previously right and left devices are needed.

Abstract: A device for tightening a safety belt about a person in a seat mounted on a vehicle body of a motor vehicle in which a belt anchor is attached to the vehicle. The belt anchor is supported movably relative to the vehicle body, and the belt anchor is coupled to a mass of a vehicle part which is arranged movably so as to execute a forced motion relative to the vehicle body if the vehicle hits an obstacle. The seat has a tiltably supported seat back frame which constitutes at least part of the mass, and wherein the belt anchor is linked-on to the lower part of the tiltably supported seat back frame. The mass is spring-loaded against motion relative to the vehicle body.

Abstract: A winding shaft in a belt roll-up device which has a locking element connected to the winding shaft and a blocking element fastened to the housing. The locking element comes into engagement with the blocking element by a force in the direction of the belt pull exerted upon the winding shaft such as occurs when the belt unwinds too rapidly. The belt is also prevented from completely unwinding by fastening the end of the belt to the winding shaft and by means for exerting a force on the winding shaft for making the locking element respond and engage the blocking element when the last approximately 530.degree. of turns of belt begin to unwind. Thus unwinding of about the last 1 1/2 turns of belt is prevented. This relieves the possible load and damage to the fastening of the end of the belt and to the winding shaft and permits a more economical, efficient design.

Abstract: Retightener with a pyrotechnic propellant charge for automatic safety-belt wind-up devices having an energy converter, wherein in the event of danger the explosive pressure of the ignited propellant charge acts on a pullout element tightening the safety belt around the body of the vehicle passenger to be protected via a liquid buffer arranged between the propellant charge and a pullback element. In accordance with the invention a receptacle which contains the liquid buffer is coupled to the winding shaft and rotates together with the latter. In the circumferential surface of the receptacle is at least one jet nozzle directed substantially tangentially to the axis of rotation and against a stationary guide ring surrounding the receptacle.

Abstract: Automatic wind-up roller for a safety belt with means to stop the belt from unwinding in case of danger. The wind-up roller has a release mechanism activated when a predetermined acceleration or deceleration is exceeded, a control lever activated by the release mechanism, a control disc with elastic yielding control teeth which couple with the control lever, and a locking mechanism activated by the control disc to block the control shaft.

Abstract: Retightener with a pyrotechnic propellant charge for automatic safety-belt wind-up devices having an energy converter, wherein in the event of danger the explosive pressure of the ignited propellant charge acts on a pullout element tightening the safety belt around the body of the vehicle passenger to be protected via a liquid buffer arranged between the propellant charge and a pull-back element. In accordance with the invention a turbine housing is disposed around the turbine wheel with a hollow space on one side between the turbine wheel and the wall of the housing to form a turbine pressure chamber. A receptacle containing liquid medium has its outlet opening into the turbine pressure vessel. The outlet of the receptacle is aligned substantially tangentially to the turbine wheel.

Abstract: A lock for safety belts in motor vehicles having a base body with a lock latch for insertion and locking a plug-in blade and a closing and ejection spring which acts to hold the lock latch in closed position and to eject the plug-in blade upon unlocking. There is provided in the lock of the invention, a rotatably supported ejection lever in the path of insertion of the plug-in blade and movable by it, and a closing and ejection, spirally-shaped spring having one end acting on the lock latch to hold it in closed position and the other end of the spring acting on the rotatably supported ejection lever to eject the plug-in blade upon unlocking.

Abstract: An improved anchor for the upper portion of a shoulder harness belt in a vehicle restraint system. An anchor member having a substantial force transmitting relationship with the shoulder harness belt, preferably through a webbing relay, has a certain degree of universal type movement, and therefore allows the anchor member and the webbing relay to make appropriate movements to follow the many odd angles and twists which the webbing relay may be subjected to. The anchorage is further designed to transmit high forces between the webbing relay and the frame of the vehicle.

Abstract: A safety belt wind-up roller includes a winding shaft for a safety belt, a rewind spring operatively connected to the winding shaft for rewinding the safety belt after it has been withdrawn, a compensating device for equalizing the restoring force of the rewind spring as the restoring force increases with increasing withdrawal of the safety belt, and a coupling member operatively associated with the winding shaft for rotation therewith, and the compensating device has a compensating member in the form of a roll spring mounted axially parallel to the winding shaft and having a radially outer end forcibly engageable with the coupling member during rotation of the winding shaft over a predetermined rotary angle as the safety belt is being rewound.

Abstract: Passive restraining system for securing a seated vehicle passenger with a safety belt firmly holding the passenger in his seat includes vehicle parts displaceable relative to one another in dependence upon a retardation in the vehicle velocity, for tightening the safety belt which is connected to the vehicle parts.

Abstract: Limit switch, particularly for use as a lock switch for safety belts, composed of a flat housing, spaced contact elements in the housing, a switching lever formfittingly secured on one side of the housing with the other side free to move, a spring-loaded switch element on the free end of the lever to open and close the contacts, the side wall of the housing acting as a stop to limit movement of the lever, a cover with an opening for the housing, and a tripping pin attached to the lever extending through the opening, which pin is activated by for example closing a seat belt by a sliding tongue inserted in the housing thus moving the switch element to open or close the contacts.

Abstract: An automatic roll-up device for safety belts in motor vehicles with a winding shaft supported, with bearing play, in a bearing block and means to reduce undesirable noises due to rattling because of the play, involving a support roll which is supported resiliently in the axial direction and loads the winding shaft in the radial direction.

Abstract: A roller blind with a safety device for arresting accidental unrolling of the blind in which a shaft butt is coupled to one end of the winding shaft, a drive disk disposed on the shaft butt, a pawl shaped inertial member pivotally mounted on a pin extending from the drive disk, and a housing having internal teeth, around the disk and inertial member. The inertial member will not change its position relative to the drive disk but with increased unrolling velocity does change its position and the pawl engages the internal teeth of the housing to arrest unrolling of the blind.

Abstract: Lock for motor vehicle safety belts with a metallic base plate which has a recess in which a latching mechanism is supported so that it can be swung about an axis extending transversely to the insertion direction of a plug-in blade from the closed position by a pushbutton against the action of a spring. With insertion of the plug-in blade the locking mechanism snaps with a latching projection into an undercut of the plug-in blade to the closed position. The recess in the base plate is formed by punching free a lug, which bent out of the plane of the base plate is unitary with and spaced from the base plate forming a guide for the plug-in blade. Manufacture of such locks is simpler with savings in material. In addition the locks are lighter in weight.

Abstract: A swinging fitting for safety belts having a belt holder arm rotatable about a bearing pin and a tilting spring urging the belt holder arm in rest position when the belt is not in use. An intermediate member is placed in locking engagement with the bearing pin. The intermediate member engages one end of the tilting spring and the other end of the spring is engaged by the holder arm.

Abstract: A roller blind with a safety device for arresting accidental unrolling of the blind in which a concentric blocking shaft is affixed to the winding shaft, a gear fastened to the blocking shaft, a pivotally mounted pawl with a spring urging the pawl in contact with teeth of the gear, a gate normally holding the pawl out of contact with the teeth, an inertial member supported relatively movably with respect to the blocking shaft whereby upon increased unrolling velocity the inertial member will change its relative movement and activate the gate member to release the pawl and permit it to engage the teeth of the gear and arrest unrolling of the blind.