1. An adjusting system for a vehicle seat comprising
a lower rail that can be mounted rigidly to the vehicle,
an upper rail that is displaceable along the lower rail and is adapted to be mounted rigidly to the seat,
a locking device for locking the upper rail to the lower rail,
a memory module that is movable along the lower rail, is adapted to be fixed alternately with respect to the seat or to the vehicle, and includes a movable blocking catch for effecting positive locking to the lower rail,
a seat-mounted control lever for actuating the blocking catch,
a seat-mounted actuating mechanism for unlocking the locking device,
a seat-mounted blocking lever that engages in a position-dependent manner with the actuating mechanism,
wherein the memory module has a control cam for controlling the blocking lever such that, when the position of the memory module is fixed with respect to the vehicle, the actuating mechanism is blocked in an unlocking position by the blocking lever, and
wherein the control cam is movable with the memory module along the lower rail.
2. The adjusting system according to claim 1, wherein the actuating mechanism is adapted to be coupled to a backrest adjusting device.
3. The adjusting system according to claim 1, wherein a free end of the blocking lever is guided along the control cam of the memory module under preload.
4. The adjusting system according to claim 1,
wherein the actuating mechanism comprises a rotary element which, in a position in which it is rotated out from a rest position, causes unlocking of the locking device, and
wherein the rotary element is in the form of a rotatably mounted rocker, a free end of which rests against an actuating lever.
5. The adjusting system according to claim 4, wherein the rotary element comprises a first coupling mechanism and the blocking lever comprises a second coupling mechanism,
the first and second coupling mechanisms being coupled to one another in the rotated-out position of the rotary element when the blocking lever is free, and the coupling means being uncoupled when the blocking lever runs up on the control cam of the memory module.
6. The adjusting system according to claim 5,
wherein the first coupling means is formed on the rotary element as a radially outwardly-directed catch hook with a radial retaining flank,
wherein the second coupling means is formed on the blocking lever by an axial projection that rests against the catch hook, the projection extending behind the catch hook in the rotated-out position of the rotary element and being retained by the retaining flank, and
the projection moving radially outwards along the retaining flank, the rotary element being thereby released, when the blocking lever runs up on the control cam of the memory module.
7. The adjusting system according to claim 4, wherein the blocking lever and the rotary element are mounted on a common spindle.
8. The adjusting system according to claim 7, wherein the blocking lever has a bearing region with a slot receiving the spindle, and has a first lever arm interacting with the control cam of the memory module and a second lever arm angled with respect to the first lever arm as a bracing element.
9. The adjusting system according to claim 1, wherein the actuating mechanism for unlocking the locking device further comprises an actuating lever.
10. The adjusting system according to claim 9, wherein the rotary element is in the form of a rotatably mounted rocker, a free end of which rests against the actuating lever.
11. The adjusting system according to claim 10, wherein the actuating lever is preloaded against the free end of the rocker.
12. A vehicle comprising an adjustment system for a vehicle seat according to claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Coil form for mounting on a magnet core, wherein the coil form comprises:
a winding form for applying a winding, the winding form comprising a recess for receiving a tooth of the magnet core,
at least one holding rib being integrally formed on the coil form and fixing the coil form to the tooth in cooperation with a holding structure of the magnet core, wherein the at least one holding rib faces towards a yoke back of the magnet core when mounted, and the at least one holding rib is formed for engaging with the holding structure in an interference fit.
2. Coil form according to claim 1, wherein at least one holding rib is dimensioned in such a way that the coil form is fixed to the tooth in an interference fit.
3. Coil form according to claim 1, wherein at least one holding rib is formed in such a way that the coil form is fixed to the tooth by locking.
4. Coil form according to claim 1, further comprising a first and a second flange, wherein the first flange supports the at least one holding rib and faces towards a yoke back of the magnet core when mounted.
5. Coil form according to claim 1, wherein at least one crimped rib is integrally formed on a wall of the recess and comes into engagement with the tooth of the magnet core in such a way that the crimped rib is deformed and an interference fit is provided between the tooth and the coil form.
6. Coil form according to claim 1, wherein the at least one crimped rib is arranged in such a way that it comes into engagement with an outer surface of the tooth, this surface extending in a direction in which lamellae of which the magnet core is composed are layered.
7. Coil form according to claim 1, wherein the cross-section of the recess has a taper which leads to an interference fit with an end face region of the tooth.
8. Magnet core which is formed by a number of lamellae manufactured from sheet metal, which are layered on one another in a plane-parallel manner and interconnected, wherein the magnet core comprises a holding structure for fixing a coil form according to claim 1.
9. Magnet core according to claim 8, wherein every two lamellae lying on top of one another are rotated through an offset angle relative to one another to form the holding structure.
10. Magnet core according to claim 9, wherein the offset angle is N*360\xb0t, N being a natural number and t being the number of teeth.
11. Magnet core according to claim 8, which is formed as an annular core comprising a yoke back and a plurality of teeth which are arranged on the inner peripheral side and are separated from one another by grooves.
12. Magnet core according to claim 11, wherein the holding structure comprises mutually opposed hook-shaped projections which cooperate with the at least one holding rib.
13. Magnet core according to claim 11, wherein the teeth comprise an end face region which is widened opposite a connection region to the yoke back.
14. Magneto-electric angle sensor, comprising a stator, ferromagnetic at least in part, and a rotor, ferromagnetic at least in part, which are positioned opposite one another so as to form an annular gap, the magnetic resistance in the gap varying periodically, based on a shape of the rotor which varies over the circumference, when the rotor rotates about an axis of rotation, comprising a magnetic flux transmitter which is arranged on the stator and generates a predetermined magnetic flux distribution in the gap using at least one pole pair, comprising a magnetic flux receiver which is arranged on the stator and measures the intensity of the magnetic field using at least two mutually angularly offset signal pole pairs, it being possible to deduce from the two receiver signals an angle value for a relative position of the rotor relative to the stator, wherein the stator is formed by a magnet core and the magnetic flux transmitter or the magnetic flux receiver comprises windings which are arranged on coil forms according to claim 1.
15. Magneto-electric angle sensor, comprising a stator, ferromagnetic at least in part, and a rotor, ferromagnetic at least in part, comprising a magnetic flux transmitter which is arranged on the rotor and generates a predetermined magnetic flux distribution in the gap using at least one pole pair, comprising a magnetic flux receiver which is arranged on the stator and measures the intensity of the magnetic field using at least two mutually angularly offset signal pole pairs, it being possible to deduce from the two receiver signals an angle value for a relative position of the rotor relative to the stator, wherein the stator is formed by a magnet core and the magnetic flux receiver comprises windings which are arranged on coil forms of claim 1, or wherein the rotor is formed by a magnet core and the magnetic flux transmitter comprises windings which are arranged on coil forms according to claim 1.
16. Method for manufacturing a magneto-electronic angle sensor, comprising the steps of:
producing a magnet core, which comprises distributed over the circumference a plurality of teeth, which are separated from one another by grooves;
producing a plurality of coil forms which are provided with windings; mounting the coil forms on the teeth of the magnet core by sliding them on radially, wherein at least one holding rib being integrally formed on each coil form, and when slid on cooperates with a holding structure of the tooth in such a way that the coil form is fixed to the tooth, wherein the at least one holding rib faces towards a yoke back of the magnet core when mounted, and the at least one holding rib is formed for engaging with the holding structure in an interference fit.
17. Method according to claim 16, wherein the step of providing the magnet core comprises:
punching out a plurality of lamellae from sheet metal;
layering the lamellae in a plane-parallel manner to form the magnet core, every two lamellae which lie on top of one another being rotated through an offset angle relative to one another to form the holding structure for fixing a coil form.
18. Method according to claim 16, wherein when the coil form is mounted at least one crimped rib, which is arranged on the coil form, comes into engagement with a surface of the tooth, this surface extending in a direction in which the lamellae of which the magnet core is composed are layered, and wherein the deformation of the crimped rib results in an interference fit of the coil form on the tooth.
19. Method according to claim 16, wherein when the coil form is mounted each end face region of the tooth cooperates with a tapered cross-sectional region of a recess of the coil form in such a way that the coil form is held on the end face region of the tooth by an interference fit.
20. Coil form for mounting on a magnet core, wherein the coil form comprises:
a winding form for applying a winding, the winding form comprising a recess for receiving a tooth of the magnet core, at least one holding rib being integrally formed on the coil form and fixing the coil form to the tooth in cooperation with a holding structure of the magnet core; and
a first and a second flange, wherein the first flange supports the at least one holding rib and faces towards a yoke back of the magnet core when mounted.
21. Coil form according to claim 20, wherein at least one holding rib is dimensioned in such a way that the coil form is fixed to the tooth in an interference fit.
22. Coil form according to claim 20, wherein at least one holding rib is formed in such a way that the coil form is fixed to the tooth by locking.