Abstract: A process and an installation for producing a yarn in accordance with an airjet-spinning method. A carded fibre sliver is subjected to more than three-fold drawing without levelling at a carding machine and deposited in a can (C). At least nine fibre slivers are fed draftfree from cans (C) to a draw frame and subjected to at least 8.5-fold drawing to form a fibre sliver and deposited in a can (C1). The fibre sliver in the cans (C1) is then fed to a spinning station of an airjet-spinning machine.

Abstract: A unit for picking up a spare wheel. According to one implementation the unit includes a drum which rotates for winding or unwinding a cable, the drum having a body with a side surface wherein which is formed a helical groove that receives the cable, one end of the cable being attached to a terminal, the terminal being pivotal with respect to the body of the drum. The pivotal movement of the terminal being blocked by at least one turn of the cable when the cable is at least partially wound on the drum.

Abstract: Unit for picking up a spare wheel of a vehicle. According to one implementation the unit includes a gear assembly configure to apply a torque on a drum supporting a cable, the gear assembly having a cam that wobbles as the gear assembly transmits the torque. A rotatable stop is situated adjacent a side edge of the cam and is configured to act on the edge of the cam to limit the travel of the cam during the wobbling movement. The stop has a first contact surface and a second contact surface with the edge of the cam configured to slide along the first contact surface as the drum is rotated in at least one direction by operation of the cam. A guide surface is provided to interact with the second contact surface to limit the rotation of the stop when the edge of the cam acts on the stop.

Abstract: A unit for picking up a spare wheel of a vehicle. According to one implementation the unit includes a gear assembly configure to apply a torque on a drum supporting a cable, the gear assembly having a cam that wobbles as the gear assembly transmits the torque. A rotatable stop is situated adjacent a side edge of the cam and is configured to act on the edge of the cam to limit the travel of the cam during the wobbling movement. The stop has a first contact surface and a second contact surface with the edge of the cam configured to slide along the first contact surface as the drum is rotated in at least one direction by operation of the cam. A guide surface is provided and configured to interact with the second contact surface of the stop to limit the rotation of the stop when the edge of the cam acts on the stop.

Abstract: A unit for picking up a spare wheel. According to one implementation the unit includes a drum which rotates for winding or unwinding a cable, the drum having a body with a side surface wherein which is formed a helical groove that receives the cable, one end of the cable being attached to a terminal, the terminal being pivotal with respect to the body of the drum. The pivotal movement of the terminal being blocked by at least one turn of the cable when the cable is at least partially wound on the drum.

Abstract: Unit for picking up spare wheels in vehicles that includes a winding assembly with a rotating shaft, the rotating shaft having a gear with a plurality of spaced-apart teeth circumferentially disposed about the rotating shaft. The unit further includes a safety device that includes a spring loaded cam that is pivotable between first and second angular positions. The cam includes an engaging portion that is configured to engage with the spaced-apart teeth on the rotating shaft. In the first angular position the engaging portion of the cam is urged towards the gear of the rotating shaft by action of a spring element so that the engaging portion resides in a space between the spaced-apart teeth to prevent rotation of the rotating shaft. In the second angular position the engaging portion of the cam is positioned away from the gear of the rotating shaft against the action of the spring element so that the engaging portion does not engage with the spaced-apart teeth to permit rotation of the rotation shaft.

Abstract: Headrests for motor vehicle seats. The headrests may include a fixed part, a moving part movable with respect to the fixed part from a rest position to an active position, with connection means connecting the fixed part and the moving part to determine the path and the position of the moving part. A drive device drives and moves the moving part with respect to the fixed part in the event of a crash. Movement of at least one portion of the moving part to a forward position with respect to the active position may be provided by a damping assembly. The damping assembly may also allow the backward movement to the active position after an impact of the user's head on the moving part, absorbing energy in the backward movement.

Abstract: Safety devices for vehicle tire carriers including safety features that protect against the tire being dropped upon a failure in a cable system that supports the tire in a stowed condition. In one implementation the tire carrier has a support shaft at least partially housed within a longitudinal sleeve having a window. A pivotable arm has a first feature that engages with a portion of the support shaft to limit downward movement of the support shaft within the longitudinal sleeve when the pivotable arm is in a first rotational position and upon a failure in the cable system to properly support the tire in the stowed condition. The pivotable arm may also have a second feature that engages with the longitudinal sleeve to inhibit the arm from pivoting away from the first rotational position upon a failure in the cable system to properly support the tire in the stowed condition.

Abstract: A headrest. In one implementation the headrest includes a moving part that is rotationally coupled to a fixed part between a rest position and an active position. A connection assembly connects the moving part to the fixed part. An articulation assembly is operably coupled to and between the fixed part and the moving and has a first configuration when the moving part is in the rest position and a second configuration when the moving part is in the active position. The headrest includes a drive device that is moveable between first and second positions. In the first position the drive device is decoupled from the articulation assembly so that the articulation assembly assumes the first configuration, when in the second position the drive device acts upon articulation assembly to cause the articulation assembly to assume the second configuration.

Abstract: A unit for picking up and lowering a spare wheel on a vehicle. In one implementation the unit comprises a main shaft, a mechanism with a shaft of rotation for winding or releasing the cable, which is connected at one end to the main shaft, and at the other to the mechanism, a safety actuator that acts on the main shaft and is connected to the mechanism by a connection means. A drive means connects the mechanism and the connection means, and cooperates with the safety actuator, releasing it, in a combined rotation and displacement movement.

Abstract: Headrests for motor vehicle seats. The headrests may include a fixed part, a moving part movable with respect to the fixed part from a rest position to an active position, with connection means connecting the fixed part and the moving part to determine the path and the position of the moving part. A drive device drives and moves the moving part with respect to the fixed part in the event of a crash. Movement of at least one portion of the moving part to a forward position with respect to the active position may be provided by a damping assembly. The damping assembly may also allow the backward movement to the active position after an impact of the user's head on the moving part, absorbing energy in the backward movement.

Abstract: A unit for picking up and lowering a spare wheel on a vehicle. In one implementation the unit comprises a main shaft, a mechanism with a shaft of rotation for winding or releasing the cable, which is connected at one end to the main shaft, and at the other to the mechanism, a safety actuator that acts on the main shaft and is connected to the mechanism by a connection means. A drive means connects the mechanism and the connection means, and cooperates with the safety actuator, releasing it, in a combined rotation and displacement movement.

Abstract: A headrest. In one implementation the headrest includes a moving part that is rotationally coupled to a fixed part between a rest position and an active position. A connection assembly connects the moving part to the fixed part. An articulation assembly is operably coupled to and between the fixed part and the moving and has a first configuration when the moving part is in the rest position and a second configuration when the moving part is in the active position. The headrest includes a drive device that is moveable between first and second positions. In the first position the drive device is decoupled from the articulation assembly so that the articulation assembly assumes the first configuration, when in the second position the drive device acts upon articulation assembly to cause the articulation assembly to assume the second configuration.

Abstract: In an apparatus for determining fibre lengths and fibre length distribution from a fibre material sample, especially in spinning preparation, collected fibre material is automatically conveyable by a conveyor device, is arranged to be supplied to a take-up device that grips it, is separable from the conveyor device and transportable to at least one rotating combing device, each end region of the collected fibre material protruding from the take-up device being combable by combing device, and subsequently detectable by a measuring device. The apparatus permits within a short time a sample preparation founded on a uniform basis and an accurate measurement of the samples.

Abstract: In an apparatus for determining fibre lengths and fibre length distribution from a fibre material sample, especially in spinning preparation, collected fibre material is automatically conveyable by a conveyor device, is arranged to be supplied to a take-up device that grips it, is separable from the conveyor device and transportable to at least one rotating combing device, each end region of the collected fibre material protruding from the take-up device being combable by combing device, and subsequently detectable by a measuring device. The apparatus permits within a short time a sample preparation founded on a uniform basis and an accurate measurement of the samples.

Abstract: An apparatus for advancing a sliver and sensing thickness variations thereof in a fiber processing machine includes a tongue-and-groove roll pair composed of a tongue roll and a groove roll. The groove roll is radially fixedly supported and has a circumferentially extending groove including a groove bottom. The tongue roll projects into the groove and defines, with the groove roll, a nip through which the sliver passes for being compressed and advanced by the tongue-and-groove roll pair. The apparatus further has a sensing device including a biased, movably supported sensor element projecting into the groove of the groove roll and cooperating with the groove bottom upstream of the nip as viewed in a direction of sliver advance for pressing the sliver against the groove bottom and for undergoing excursions in response to thickness variations of the sliver passing between the sensor element and the groove bottom.

Abstract: A method of operating a draw frame including a plurality of serially arranged roll pairs each defining a nip through which a fiber sliver passes from roll pair to roll pair. Each roll pair is formed of an upper roll and a lower roll. A pressing arm carries the upper rolls, and pressing devices are accommodated in the pressing arm for pressing each upper roll against a respective lower roll. The method comprises the following steps: during the working state of the draw frame, passing the sliver consecutively through the roll pair nips while the pressing devices press the upper rolls against respective lower rolls, and during an interruption of the working state the upper output roll is relieved of pressing forces to an extent that at the most only an insubstantial pressure is exerted by the upper output roll on the sliver situated in the nip between the upper output roll and the lower output roll.