Abstract: A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine and at least one honing unit (130) which is mounted on the support structure and which has a main support (160), which can be mounted fixedly in relation to the support structure, and a spindle unit (150), which is supported by the main support and in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool.

Abstract: In the case of a method for measuring the geometry of a drilled hole in a workpiece, a measuring system is used which has a measuring unit with a measuring mandrel that can be moved bidirectionally along a travel path parallel to a measuring mandrel axis. The measuring mandrel is calibrated at least once with the use of a reference device by way of at least one reference element. During a measuring operation, the reference device is arranged in a neutral location outside the travel path of the measuring mandrel in such a way that the measuring mandrel can be introduced into the drilled hole without dipping through the reference element. To carry out a calibration operation, the reference device is moved out of the neutral location. The measuring mandrel is moved into a calibrating location, where a measurement for calibrating the measuring mandrel is carried out.

Abstract: A honing machine for machining workpieces that have at least one bore to be machined by means of honing, comprises a plurality of workstations (180-1, 180-2), wherein at least one of the workstations is configured as a honing station (180-1, 180-2) that comprises at least one honing unit (150-1, 150-2) that has a spindle shaft (152) that is rotatable about a vertical spindle axis (155) by means of a rotary drive and is movable back and forth parallel to the spindle axis by means of a reciprocating drive. The honing machine has a pallet transport system (200) internal to the machine, for transporting workpieces from and to the workstations (180-1, 180-2) by means of pallets (210-1, 210-2). The pallet transport system (200) is designed such that different transport paths are freely configurable via a control unit (190) of the honing machine (200).

Abstract: In the case of a measuring method for measuring the geometry of a drilled hole in a workpiece, a measuring system is used which has a measuring unit (110) which, in the state which is set up ready for operation, has a measuring mandrel (120) which can be moved bidirectionally along a travel path parallel to a measuring mandrel axis (125) by means of a linear drive. The measuring mandrel (120) is calibrated at least once with the use of a reference device (200) by way of at least one reference element (230-1, 230-2) of defined internal dimensions, by the measuring mandrel (120) being moved by means of the linear drive into a calibrating location, in which a measuring sensor of the measuring mandrel is arranged in the region of the reference element.

Abstract: A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine and at least one honing unit (130) which is mounted on the support structure and which has a main support (160), which can be mounted fixedly in relation to the support structure, and a spindle unit (150), which is supported by the main support and in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool.

Abstract: In a preferred embodiment there is disclosed a vehicular seat element comprising a foam substrate, the foam substrate comprising an A-surface for contact by an occupant and a B-surface opposed to the A-surface, a central portion of the A-surface have a first surface area and comprising a plurality of channels, the central portion of the A-surface comprising an occupant contact portion having a second surface area, wherein the first surface area is greater than the second surface area, a plurality of apertures disposed in the plurality of channels, each aperture interconnecting the A-surface and the B-surface of the foam substrate. The plurality of channels acts a distribution manifold for air to be moved laterally with respect to the A-surface of the foam pad and also through the holes in the seat pad to allow for circulation of air. In other words, the through holes in the foam provide a pass for air to flow from the B-surface of the foam pad to the A-surface of the foam pad, and vice versa.

Abstract: In a preferred embodiment there is disclosed a vehicular seat element comprising a foam substrate, the foam substrate comprising an A-surface for contact by an occupant and a B-surface opposed to the A-surface, a central portion of the A-surface have a first surface area and comprising a plurality of channels, the central portion of the A-surface comprising an occupant contact portion having a second surface area, wherein the first surface area is greater than the second surface area, a plurality of apertures disposed in the plurality of channels, each aperture interconnecting the A-surface and the B-surface of the foam substrate. The plurality of channels acts a distribution manifold for air to be moved laterally with respect to the A-surface of the foam pad and also through the holes in the seat pad to allow for circulation of air. In other words, the through holes in the foam provide a pass for air to flow from the B-surface of the foam pad to the A-surface of the foam pad, and vice versa.

Abstract: A vehicular seat trim cover attachment device having a plurality of female attachment portions interconnected to one another by at least one connecting portion. The attachment device is preferably flexible in at least two independent planes. Each female attachment portion has a receptacle portion and a base portion. Each base portion is connected to the connecting portion. Each base portion has a lateral dimension greater than a lateral dimension of the receptacle portion. At least a portion of the connecting portion is disposed in an exoplanar relationship with respect to a pair of female attachment portions that have substantially coplanar base portions. Preferably, the connecting portion extends below the bottom surfaces of the adjacent base portions.

Abstract: There is described an attachment system for attaching a plurality of elements to a resilient body, preferably for attachment of a trim cover to a foam element. The system comprising a first element having attached thereto a first attachment portion and a second element having attached thereto a second attachment portion, the first attachment portion and the second attachment portion being releasably engageable with the resilient body.

Abstract: A vehicular seat trim cover attachment device having a plurality of female attachment portions interconnected to one another by at least one connecting portion. The attachment device is preferably flexible in at least two independent planes. Each female attachment portion has a receptacle portion and a base portion. Each base portion is connected to the connecting portion. Each base portion has a lateral dimension greater than a lateral dimension of the receptacle portion. At least a portion of the connecting portion is disposed in an exoplanar relationship with respect to a pair of female attachment portions that have substantially coplanar base portions. Preferably, the connecting portion extends below the bottom surfaces of the adjacent base portions.

Abstract: A vehicular seat trim cover attachment device having a plurality of female attachment portions interconnected to one another by at least one connecting portion. The attachment device is preferably flexible in at least two independent planes. Each female attachment portion has a receptacle portion and a base portion. Each base portion is connected to the connecting portion. Each base portion has a lateral dimension greater than a lateral dimension of the receptacle portion. At least a portion of the connecting portion is disposed in an exoplanar relationship with respect to a pair of female attachment portions that have substantially coplanar base portions. Preferably, the connecting portion extends below the bottom surfaces of the adjacent base portions.

Abstract: This invention relates to a module (30) for installation inside, in contact with or near a cushion element (20), a cushion element, a connecting means (60, 70) for a cushion element (20) and/or a module (30), and a padded object (5) having at least one module (30). Provision is made for the module (30) to feature at least a first connecting means (60) that corresponds to at least a second, at least partially matching, connecting means (70) of the cushion element (20).

Abstract: A vehicular seat trim cover attachment device having a plurality of female attachment portions interconnected to one another by at least one connecting portion. The attachment device is preferably flexible in at least two independent planes. Each female attachment portion has a receptacle portion and a base portion. Each base portion is connected to the connecting portion. Each base portion has a lateral dimension greater than a lateral dimension of the receptacle portion. At least a portion of the connecting portion is disposed in an exoplanar relationship with respect to a pair of female attachment portions that have substantially coplanar base portions. Preferably, the connecting portion extends below the bottom surfaces of the adjacent base portions.

Abstract: An air-distribution system (20) for the distribution of air in a structural unit (30) in the passenger compartment of a vehicle, in particular in a vehicle seat (31). The system has at least one air-distribution layer (4), which is located on a base (6?), and at least one limiting mechanism (41?), which at least partially limits the air-distribution layer (4) laterally at at least one of its peripheral edges (53). The limiting means (41?) is designed as at least partially different from base such that it is not integral with the base.

Abstract: There is described an attachment system for attaching a plurality of elements to a resilient body, preferably for attachment of a trim cover to a foam element. The system comprising a first element having attached thereto a first attachment portion and a second element having attached thereto a second attachment portion, the first attachment portion and the second attachment portion being releasably engageable with the resilient body.

Abstract: In one of its aspects, the present invention relates to an attachment device which comprises a series of attachment portions. The attachment portions are interconnected to one another by at least one connecting portion, preferably a flexible connecting portion. The attachment device is flexible in at least two independent planes. In most cases, the present attachment device will be flexible in more than two independent planes. A preferred manner by which such flexibility is conferred to the attachment device is by the provision of a trim cover attachment portion having a female attachment portion attached to a base portion. The base portion has a larger surface area than the surface area of the female attachment portion adjacent or attached thereto. The lateral dimension of the base portion is greater than the lateral dimension of the at least one connecting portion. A process of producing a resilient device (e.g.

Abstract: An actual value (u.sub.ixRF) of a signal (i.sub.xRF) affected by harmonics may be corrected. A harmonic signal (u.sub.iF) superimposed on the signal (i.sub.xRF) is generated using a harmonic-free setting signal(u.sub.yR), a known pulse pattern (.alpha..sub.1, .alpha..sub.2, ..., .alpha..sub.5) stored in the memory of a modulator, and an equivalent model of the control system. The mean value (u.sub.iF) of this harmonic signal (u.sub.iF) is determined by a second integrating actual value acquisition device. The mean value (u.sub.iF) is subtracted as a correction value from the actual value (u.sub.ixRF), which is affected by errors. In this way, an errorfree actual value (u.sub.ixR) is obtained for a signal (i.sub.xRF), the harmonics of which are not filtered out in the actual value determination by means of an integrating actual value acquisition device.

Abstract: A control process and trigger equipment damps resonant oscillations of a parallel-resonant circuit for a pulse-controlled inverter of a current-source inverter. The pulse-controlled inverter contains turn-off current-converter switches and is linked to an inductive and to a capacitive load. This inductive and capacitive load forms a parallel-resonant circuit. A modulation mode is selected from several stored modulation modes from the system frequency (f.sub.1) of the converter current (I.sub.R). Depending upon a calculated factor (f.sub.1 /f.sub.res) and the selected modulation mode, switching angles (.alpha..sub.1, .alpha..sub.2, . . . , .alpha..sub.n) are determined depending upon system frequency by means of stored, pre-set switching angles. From these switching angles the control times for the pulse-controlled inverter are then generated.

Abstract: The invention relates to a method for simulating the actual load angle value (.nu.) of polyphase machine from the terminal voltages (u.sub.R, u.sub.S) and conductor currents i.sub.R, i.sub.S) of at least two phases (R, S) of the stator of a polyphase machine, each of which represents stator-oriented a-c variables, where said stator-oriented a-c variables (u.sub.R, u.sub.S, i.sub.R, i.sub.S) are transformed into a first stator current component (i.sub.1) and a second stator current component (i.sub.2) of the machine current vector (i.sup.s) and an absolute value of the machine flux vector (.vertline..phi..sup.s .vertline.), each of which are field-oriented d-c variables. According to the invention, a first corrected stator current component (i.sub.1) consisting of a stationary component (i.sub.1s) and a dynamic component (i.sub.1d) is generated where the stationary component (i.sub.1s) is determined form the absolute value of the machine flux vector (.vertline..phi..sup.s .vertline.

Abstract: A method is presented in which at least one of the sinusoidal voltages (U.sub.S) which is induced in the stator windings by the residual magnetism or remanence of the rotor in a rotating-field machine, the frequency of which corresponds to the rotor speed is converted into a symmetrical square wave signal, (U.sub.R), the frequency and the phase of this square wave signal (U.sub.R) matching with the frequency and the phase of the induced sinusoidal voltage (U.sub.S). From this square wave signal (U.sub.R), an output signal (U.sub.DA) proportional to the frequency thereof is generated. Thus, a method is obtained by which the time required for finding the operational speed of the rotating-field machine (2) is reduced considerably so that a frequency converter can be connected to the rotating-field machine (2) rapidly at a synchronous speed.