Abstract: A safety arrangement for a motor vehicle is disclosed which comprises an air-bag module (1) having an inflatable air-bag (5) in fluid communication with an inflator (4). An internal tether (14) is provided having a first end (15) and a second end (16). The first end (15) of the tether is connected to a restrainable part (13) of the air-bag, whilst the second end (16) of the tether is free from connection with the air-bag but is initially trapped between the folds or rolls of an initially folded or rolled part of the air-bag. The arrangement is such that, upon inflation of the air-bag, the tether serves to restrain the restrainable part (13) of the air-bag until such time as the folded or rolled part of the air-bag (9) becomes sufficiently unfolded or unrolled to release the second end (16) of the tether (14).

Abstract: An air-bag housing comprising a rectangular frame (1) defining an opening and having a mounting arrangement in the form of flanges (7) to mount the frame in position within a motor vehicle. The frame supports a housing-forming element (21) formed, for example, of fabric. This forms a housing having walls (71, 72) and a floor. The walls (71, 72) are formed seamlessly by folding the fabric in half about a fold-line, and tucking one end of the fold-line into the other end of the fold-line, and inserting the frame between the pieces of fabric to lie adjacent the fold-line. The floor is formed by a plurality of floor-forming tabs (25, 26, 35, 36 etc) carried by the fabric forming the side-walls of the housing. The tabs are folded inwardly to at least partly overlie each other and are secured in position to form the floor of the housing by studs (15, 16, 17, 18) provided on the inflator which pass through co-aligned apertures (27, 30, 38, 39) in the floor-forming tabs (25, 26, 35, 36 etc).

Abstract: An airbag for a vehicle occupant protective system comprises an inflatable cushion, a cinch tube circumventing a vent aperture disposed in the cushion, and a draw element guided in a circumventing channel of said cinch tube and being coupled to a surface of said cushion such that deployment of said cushion causes said draw element to contract said cinch tube. The airbag comprises a contraction limiting arrangement adapted to limit the contraction of said cinch tube by said draw element to a predetermined minimum free diameter d of at least 20% relative to the free diameter D of the open cinch tube.

Abstract: A knitting machine needle having at least at one point S2, S3, S4 or S5 of its hook, a cross-section that is asymmetrical with respect to a longitudinal center plane M. Preferably, this cross-section is an oval cross-section and, more preferably, an elliptical cross-section. Using this measure, the robbing-back effect can be affected in a targeted manner during the knitting operation.

Abstract: A device for noise transmission of an intake system of an internal combustion engine to the interior of a motor vehicle has a transmission line having an inlet at a first end and an exit provided with a mouth at a second end. A diaphragm is arranged at the second end to close off the mouth and to enable noise transmission. The inlet of the transmission line communicates with the intake system of the internal combustion engine. A protective device is arranged at the second end to protect the diaphragm.

Abstract: An air-bag housing comprising a rectangular frame (1) defining an opening and having a mounting arrangement in the form of flanges (7) to mount the frame in position within a motor vehicle. The frame supports a housing-forming element (21) formed, for example, of fabric. This forms a housing having walls (71, 72) and a floor. The walls (71, 72) are formed seamlessly by folding the fabric in half about a fold-line, and tucking one end of the fold-line into the other end of the fold-line, and inserting the frame between the pieces of fabric to lie adjacent the fold-line. The floor is formed by a plurality of floor-forming tabs (25, 26, 35, 36 etc) carried by the fabric forming the side-walls of the housing. The tabs are folded inwardly to at least partly overlie each other and are secured in position to form the floor of the housing by studs (15, 16, 17, 18) provided on the inflator which pass through co-aligned apertures (27, 30, 38, 39) in the floor-forming tabs (25, 26, 35, 36 etc).

Abstract: A device for noise transmission of an intake system of an internal combustion engine to the interior of a motor vehicle has a transmission line having an inlet at a first end and an exit provided with a mouth at a second end. A diaphragm is arranged at the second end to close off the mouth and to enable noise transmission. The inlet of the transmission line communicates with the intake system of the internal combustion engine. A protective device is arranged at the second end to protect the diaphragm.

Abstract: A safety arrangement for a motor vehicle is disclosed which comprises an air-bag module (1) having an inflatable air-bag (5) in fluid communication with an inflator (4). An internal tether (14) is provided having a first end (15) and a second end (16). The first end (15) of the tether is connected to a restrainable part (13) of the air-bag, whilst the second end (16) of the tether is free from connection with the air-bag but is initially trapped between the folds or rolls of an initially folded or rolled part of the air-bag. The arrangement is such that, upon inflation of the air-bag, the tether serves to restrain the restrainable part (13) of the air-bag until such time as the folded or rolled part of the air-bag (9) becomes sufficiently unfolded or unrolled to release the second end (16) of the tether (14).

Abstract: An air bag system includes an inflatable air bag and a housing formed with a vent. A tether release/vent-modifying mechanism is connected to the housing and has a plurality of walls and a movable member. The movable member has a cap portion and a rod portion extending longitudinally from the underside of the cap portion. A first broad portion extends from the cap portion forward of the underside of the cap portion and covers or uncovers a vent in the housing when the movable member is actuated to move between first and second positions to release tethers connected to the air bag.

Abstract: A tension spring arrangement includes a pneumatic spring configured with a cylinder, which has a closed end coupled to a motor-vehicle body, and a piston and rod unit coupled to a hatch and operated so that when the piston and rod unit is displaced in the cylinder to a first position, the hatch is swung to a generally vertical open position, and when the piston and rod unit is displaced to a second position, the hatch is swung to a substantially horizontal closed position. The piston is shaped and dimensioned so as to define two cylinder chambers, which are in flow isolation upon displacement of the piston and rod unit toward the first position, and are in flow communication and under a substantially uniform pressure upon displacement of the piston and rod unit to the second position.

Abstract: An air bag system includes an inflatable air bag and a housing formed with a vent. A tether release/vent-modifying mechanism is connected to the housing and has a plurality of walls and a movable member. The movable member has a cap portion and a rod portion extending longitudinally from the underside of the cap portion. A first broad portion extends from the cap portion forward of the underside of the cap portion and covers or uncovers a vent in the housing when the movable member is actuated to move between first and second positions to release tethers connected to the air bag.

Abstract: In a circuit where a power converter (1) that is connected to a motor is also connected at its input terminals (2, 3) to a d.c. power supply system (U.sub.DC) and where at least one condenser (C) is connected in parallel to the power converter (1) connected to the motor and at least one line reactor (L) is connected in series to the condenser (C), a reduction in the harmonic currents fed back into the d.c. power supply system (U.sub.DC) by the power converter (1) connected to the motor above a predetermined minimum frequency is achieved without unnecessarily overdimensioning the condenser (C) and the line reactor (L) due to the fact that the line reactor (L) has at least one tapping point (4) to which at least one RC circuit (5) is connected in parallel to the condenser (C), where the RC circuit (5) has at least one capacitor (C.sub.1) and at least one resistor (R.sub.1) connected in series with it.

Abstract: For producing woven fabrics for air bags and other industrial applications, an intermingled unsized synthetic filament yarn is used with a yarn titer of 100-1000 dtex. The individual filaments of the yarn have a titer not exceeding 5 dtex. The yarn exhibits a mean opening length of 2-10 cm, the coefficient K1 for the stability of the intermingling points of the yarn exceeds 0.6, and the coefficient K2 for the stability of the intermingling points of the yarn exceeds 0.3. This yarn can be used to manufacture industrial woven fabrics with the required properties, in particular woven fabrics for air bags, in a cost-effective manner.