Abstract: An optoelectronic arrangement for the detection of relative movements or relative positions of two objects, with the arrangement comprising at least four optoelectronic elements, characterised in that the optoelectronic elements are arranged in at least one first plane and in a second plane different from the first one in such a manner that at least three optoelectronic elements are arranged in the first plane and at least one optoelectronic element is arranged in the second plane. Further, a force and/or moment sensor provided with this arrangement with a first board and a second board, with the first board and the second board being elastically connected with each other and movable relative to one another. Finally, a personal computer keyboard which is provided with such a force and/or moment sensor.

Abstract: For sensing the relative movements of an object a force sensing unit (15) comprises a stationary supporting means (6) and a cap (150) located movable relative to said supporting means as well as a force/moment sensor (1) for sensing the three possible translational and three possible rotational movements of the cap relative to said supporting means.

Abstract: An arrangement for the detection of relative movements of two objects with four measuring cells as vertical measuring means for the detection of a relative movement perpendicular to an imaginary plane, with the measuring cells being arranged in such a manner that their vertical projections onto the plane are arranged at an identical angular distance from each other about a centre. Further, a force and/or moment sensor with a first board and a second board which are elastically connected with each other and movable relative to one another.

Abstract: A gear unit in which a cable, band or similar device is fitted between the drive and the output in order to transform a fast rotational movement at the drive end, which is limited in both directions, into a slow rotational movement at the output end. The cable is fastened at both ends to an oscillating intermediary single-piece divided into two segments, and rests against the outer walls of the intermediary piece and is wound around the shaft of the drive so as to transfer a driving torque. A position sensor is assigned to the inner segment of the intermediary piece, and/or a torque sensor is mounted between both segments of the intermediary piece. A fast rotational movement of the drive is transformed into a slow rotational movement without play, and provides a good synchronization characteristic.

Abstract: For sensing the relative movements of an object a force sensing unit (15) comprises a stationary supporting means (6) and a cap (150) located movable relative to said supporting means as well as a force/moment sensor (1) for sensing the three possible translational and three possible rotational movements of the cap relative to said supporting means.

Abstract: An apparatus for converting a rotary motion into an axial motion, is used as overload protection; the force transmitting elements of the conversion apparatus, in the form of a threaded spindle, a nut and/or the intervening planetary rollers and roller bodies, are made with different contours of deformable, preferably elastically deformable material.

Abstract: A seat, in particular a motor-vehicle seat, having a seat-adjusting mechanism is described. The seat-adjusting mechanism comprises a motor-driven spindle unit with a nut which has an inner profiled portion and a spindle which has an outer profiled portion. The spindle unit comprises a plurality of rollers which are arranged in planetary manner between the nut and the spindle and cooperate with the nut and the spindle. Each of the rollers has at least one outer profiled portion.

Abstract: To create an additional steering angle for a vehicle, an actuator having a microprocessor-controlled electric motor functioning as the drive and a gear driven by said electric motor, is used to apply to the wheels the additional steering angle at the vehicle axle. The gear is a known constant-pitch planetary rolling-contact threaded-spindle gear (constant-pitch PRCTS gear) (12), consisting of a spindle rod (16), a spindle nut (14) surrounding the former, and a number of interposed rollers or rolling elements (18) with a groove profile (19) matching the thread (17) of the spindle rod (16). The rollers or rolling elements (18) are run on a number of guide rings (20) and interposed bearings (20), and placed at a fixed predetermined distance relative to the spindle nut (14) and to one another. The spindle rod (16) concurrently functions as the axis of the electric motor and is placed inside an electric motor rotor (9′).

Abstract: A manually actuated input device for commanding machine- and/or computer-assisted control operations for kinematic motions of a real or virtual multipart object, including a force/moment sensor with which linear displacements in the form of translational movements in the direction of three axes (X, Y, Z), each standing perpendicular on the other, of a three-dimensional rectangular system of coordinates and/or rotational excursions in the form of rotational motions (A, B, C) about these three axes are sensed and converted into commanded motions of the object to be controlled is characterized by the commanded individual linear displacements and/or rotational excursions of the force/moment sensor being assigned specific kinematic motion patterns of parts of the real or virtual object thereby permitting manipulation or animation thereof as a transforming interlink and by the commanded velocities of the corresponding individual linear displacements and/or rotational excursions of the force/moment sensor being addi

Abstract: A linear drive unit has a threaded rod, and in combing engagement with same a threaded nut (2), from the outer circumference of which a number of equally spaced cogs (3) project in a radial direction. Furthermore, connecting links (4, 5), which extend parallel to the axis of the threaded rod inside a housing, are driven via hydraulically or pneumatically actuated pistons, causing the connecting links (4, 5) to move in an axial direction. During this oscillating movement the connecting links act upon cogs (3) that project from the threaded nut (2). The force exerted via the cogs (3) located on the outer circumference of the threaded nut (2) causes the threaded nut (2) to be put into an incremental rotation, which, in turn, causes an incremental linear shifting of the threaded rod (1).

Abstract: An electromechanical brake, in particular for vehicles, has an electric actuator which generates an actuation force and acts on at least one frictional element so as to press the latter, in order to bring about a frictional force, against a rotatable component of the brake which is to be braked. In order to keep the actuation force to be applied by the actuator low, there is, between the component to be braked and the electric actuator, an arrangement which brings about the self-energization of the actuation force generated by the electric actuator. In the event of a deviation between the setpoint value and the actual value, a device for comparing a setpoint value of the frictional force with the actual value of the frictional force controls the electric actuator, in order to correspondingly increase or decrease the generated actuation force, with the result that the actual value is approximated to the setpoint value of the frictional force.

Abstract: A gear unit in which a cable, band or similar device is fitted between the drive and the output in order to transform a fast rotational movement at the drive end, which is limited in both directions, into a slow rotational movement at the output end. The cable is fastened at both ends to an oscillating intermediary single-piece divided into two segments, and rests against the outer walls of the intermediary piece and is wound around the shaft of the drive so as to transfer a driving torque. A position sensor is assigned to the inner segment of the intermediary piece, and/or a torque sensor is mounted between both segments of the intermediary piece. A fast rotational movement of the drive is transformed into a slow rotational movement without play, and provides a good synchronization characteristic.

Abstract: The invention relates to a gear unit in which a cable, band or similar (2) is fitted between the drive and the output in order to transform a fast rotational movement at the drive end, which is limited in both directions, into a slow rotational movement at the output end. The cable (2) is fastened at both ends (21, 22) to an oscillating intermediary single-piece (3) divided into two segments (31, 32). The cable rests against the outer walls of the intermediary (2) and is wound around the shaft (41) of the drive (4) so as to transfer a driving torque. A position sensor is assigned to the inner segment (31) of the intermediary piece (3), and a torque sensor (6) is mounted between both segments (31, 21) of the intermediary piece (3). In the inventive gear unit, a fast rotational movement of the drive is transformed into a slow rotational movement. This takes place without play and provides a good synchronization characteristic.

Abstract: To form the drive for an electrically-actuatable vehicle brake whose frictional elements can be pressed against a brake disk (38) with the aid of an electric motor (4), the electric motor (4) is connected, by way of a spindle gear that acts, with axial guidance and protection against relative rotation, in the direction of displacement of the frictional elements, to a brake piston (24), which is seated to be axially displaceable and acts on the frictional elements. A pitch-true, planetary-roller threaded (SPWG) spindle (12) known per se is used as the spindle gear, the spindle comprising a spindle shaft (16), a spindle nut (14) encompassing this shaft, and a plurality of barrel or roller bodies (28) disposed between the two, the bodies being provided with grooved profiles (29) that fit the spindle shaft (16). The barrel or roller bodies (28) are seated by a plurality of guide rings (30) or a guide body (30') and bearings (18, 20) disposed between them.

Abstract: To convert a rotational movement into an axial movement, rolling or roller bodies (2') are seated by way of a plurality of guide rings (5) and bearings (6) disposed between the guide rings (5) and a spindle nut (3'). The rolling or roller bodies (2') are fixedly spaced relative to the spindle nut (3') and one another, so an axial reception of a force or torque by the spindle nut (3) is transmitted through the rolling and roller bodies (2'), the guide rings (5) and the bearings (6), and, via the rolling or roller bodies (2'), the guide rings (5) and the bearings (6), a rotational movement of the spindle rod (1) is converted into an axial movement of the spindle nut (3'), or vice versa, that is free from pitch errors.

Abstract: A device (1) for converting rotary movement into axial movement has a spindle (8), a spindle nut (5) surrounding the spindle (8), and a plurality of interposed rollers (7). Each of the rollers has a groove profile (72) corresponding to a thread (81) on the spindle (8), and roller grooves (71) corresponding to spindle grooves (51) formed on the interior of the spindle nut (5). The converter device is driven by a drive unit such as an electric motor (4), either via the elements spindle nut (5) and spindle (8) or, with an interposed connection element, via the rolling elements or rollers (7). The converter device has a reset device with a mechanical energy accumulator (21) and an energy delimiter (22). Energy transfer takes place from the electric motor (4) via the energy delimiter (22) to the energy accumulator (21) connected to a casing (3) or vice versa.

Abstract: An apparatus for converting rotary motion into axial motion includes a spindle with an external contour and a nut with an internal profile and interposed contoured rollers which have two different contours, one of which produces an axial connection with the contour of the spindle, and the other of which produces a corresponding axial connection with the contour of the interior of the nut. It is preferred that the contour on the interior of the nut be in the form of relatively coarse grooves of V-shaped cross section, with fine simplex thread on the exterior of the spindle. Coarse grooves corresponding to and fitting the coarse grooves on the interior of the nut, alternating with a number of fine grooves corresponding to the fine simplex thread on the spindle, are provided on the outside of the rollers that are disposed between the spindle and the nut.