Frequency transmitter, especially for brake slippage control installation of motor vehicles

Claim 2

A frequency transmitter for the indication of the rotating behavior of wheels, especially for brake slippage control installations in motor vehicles, in which a rotating part driven by a wheel cooperates by tooth means with poles of stationary magnetic part, characterized in that the rotating part is operatively connected with its drive means by an axially elastic cross spring means enabling a radial play, the cross spring means including arched portions bent out into different planes at several places, and in that connecting means including projections radially extending from a spring body of the cross spring means are provided at said places for engagement in corresponding grooves at the rotating part and at the drive means.

Claim 3

A frequency transmitter according to claim 1, characterized in that the drive means is a wheel body.

Claim 4

A frequency transmitter according to claim 1, characterized in that the stationary magnetic part is also provided with tooth means.

Claim 5

A frequency transmitter according to claim 1, characterized in that the rotating part is supported at the inner circumference thereof on a bush means of soft magnetic material, and in that a further bush means of non-magnetic material is secured on the first-mentioned bush means, the rotating part being in constant abutment with an end face thereof against the second bush means.

Claim 6

A frequency transmitter according to claim 4, characterized by bearing support means for the rotating part provided with cross grooves for the accommodation of at least one of lubricant and dirt.

Claim 7

A frequency transmitter according to claim 5, characterized in that the bearing support means provided with the cross grooves is a radial bearing support.

Claim 8

A frequency transmitter according to claim 6, characterized in that the bearing support means of the rotating part provided with cross grooves is an axial bearing support.

Claim 9

A frequency transmitter according to claim 1, characterized by bearing support means for the rotating part provided with cross grooves for the accommodation of at least one of lubricant and dirt.

Claim 10

A frequency transmitter according to claim 8, characterized in that the bearing support means provided with the cross grooves is a radial bearing support.

Claim 11

A frequency transmitter according to claim 9, cHaracterized in that the bearing support means of the rotating part provided with cross grooves is an axial bearing support.

Claim 12

A frequency transmitter according to claim 8, characterized in that the bearing support means of the rotating part provided with cross grooves is an axial bearing support.

Claim 13

A frequency transmitter according to claim 1, characterized in that the projections extend radially inwardly.

Claim 14

A frequency transmitter according to claim 1, characterized in that the projections extend radially outwardly.

Claim 15

A frequency transmitter according to claim 1, characterized in that the projections are formed into the contour of the spring body as viewed in the axial direction.

Claim 16

A frequency transmitter according to claim 1, characterized in that the projections are formed of the spring body itself in the axial direction.

Claim 17

A frequency transmitter according to claim 1, characterized in that the cross spring means is arranged between an axle bearing means and the rotating part facing a stator.

Claim 18

A frequency transmitter according to claim 16, characterized in that a coil means devoid of a winding body is arranged on the inside of the stator and consisting of a wire with a thermoplastic lacquer which is adapted to be hardened by a defined current surge.

Claim 19

A frequency transmitter for the indication of the rotating behavior of wheels, especially for brake slippage control installations in motor vehicles, in which a rotating part driven by a wheel cooperates by tooth means with poles of stationary magnetic part, characterized in that the rotating part rotates about an axis and is operatively connected with its drive means by an axially elastic cross spring means enabling a radial play, said cross spring means being constructed as a closed loop and having connecting means with the rotating part and with the drive means at spaced places along the extent of the loop, at least one of said places being normally positioned in a first plane and at least one of the other places being positioned in a second plane substantially parallel to and spaced from said first plane, said first and second planes being cross planes displaced with respect to each other by the same angle, the loop portion of said cross spring means extending between said connecting means in said first and second planes being arched and resilient in a direction substantially perpendicular to said first and second planes.

Claim 20

A frequency transmitter for the indication of the rotating behavior of wheels, especially for brake slippage control installations in motor vehicles, in which a rotating part driven by a wheel cooperates by tooth means with poles of stationary magnetic part, characterized in that the rotating part rotates about an axis and is operatively connected with its drive means by an axially elastic cross spring means enabling a radial play, said cross spring means being constructed as a closed loop and having connecting means with the rotating part and with the drive means at spaced places along the extent of the loop, at least one of said places being normally positioned in a first plane and at least one of the other places being positioned in a second plane substantially parallel to and spaced from said first plane, said first and second planes being cross planes displaced with respect to each other by the same angle, the loop portion of said cross spring means extending between said connecting means in said first and second planes being arched and resilient in a direction substantially perpendicular to said first and second planes.

Claim 21

A frequency transmitter according to claim 18, characterized in that said connecting means include projections at the cross spring means which engage in corresponding grooves at the rotating part and at the drive means.

Claim 22

A frequency transmitter according to claim 19, characterized in that the projections extend radially from a spring body of the cross spring means.

Claim 23

A frequency transmitter according to claim 20, characterized in that the projections extend radially inwardly.

Claim 24

A frequency transmitter according to claim 20, characterized in that the projections extend radially outwardly.

Claim 25

A frequency transmitter according to claim 20, characterized in that the projections are formed into the contour of the spring body as viewed in the axial direction.

Claim 26

A frequency transmitter according to claim 20, characterized in that the projections are formed of the spring body itself in the axial direction and in the direction of a respective bent out portion of the spring body.

Claim 27

A frequency transmitter according to claim 20, characterized in that the cross spring means is arranged between an axle bearing means and the rotating part facing a stator.

Claim 28

A frequency transmitter according to claim 25, characterized in that a coil means devoid of a winding body is arranged on the inside of the stator and consisting of a wire with a thermoplastic lacquer which is adapted to be hardened by a defined current surge.

Claim 29

A frequency transmitter according to claim 20, characterized in that the stationary magnetic paRt is also provided with tooth means.

Claim 30

A frequency transmitter for the indication of the rotating behavior of wheels, especially for brake slippage control installations in motor vehicles, in which a rotating part driven by a wheel cooperates by tooth means with poles of stationary magnetic part, characterized in that the rotating part rotates about an axis and is operatively connected with its drive means by an axially elastic cross spring means enabling a radial play, said corss spring means being constructed as a closed loop and having connecting means with the rotating part and with the drive means at spaced places along the extent of the loop, at least one of said places being normally positioned in a first plane and at least one of the other places being positioned in a second plane substantially parallel to and spaced from said first plane, said first and second planes being cross planes displaced with respect to each other by the same angle, the loop portion of said cross spring means extending between said connecting means in said first and second planes being arched and resilient in a direction substantially perpendicular to said first and second planes, said connecting means for connection with the rotating part being positioned in said first plane and said connecting means for connection with the drive means being positioned in the second plane, said connecting means being alternately positioned in the first and second planes along the extent of the loop.

Claim 31

A frequency transmitter for the indication of the rotating behavior of wheels, especially for brake slippage control installations in motor vehicles, in which a rotating part driven by a wheel cooperates by tooth means with poles of stationary magnetic part, characterized in that the rotating part rotates about an axis and is operatively connected with its drive means by an axially elastic cross spring means enabling a radial play, said corss spring means being constructed as a closed loop and having connecting means with the rotating part and with the drive means at spaced places along the extent of the loop, at least one of said places being normally positioned in a first plane and at least one of the other places being positioned in a second plane substantially parallel to and spaced from said first plane, said first and second planes being cross planes displaced with respect to each other by the same angle, the loop portion of said cross spring means extending between said connecting means in said first and second planes being arched and resilient in a direction substantially perpendicular to said first and second planes, said connecting means for connection with the rotating part being positioned in said first plane and said connecting means for connection with the drive means being positioned in the second plane, said connecting means being alternately positioned in the first and second planes along the extent of the loop.

Claim 32

A frequency transmitter according to claim 28, characterized in that the spring means has arched portions bent out into two cross planes displaced with respect to each other by the same angles.