Electromotive power steering

An electromotive power steering aid for motor vehicles, for a speed range during parking which comprises a steering column and a servo-motor drive, a reduction gear between said servo-motor drive and the steering column, at least one clutch block (15a, 15b, 15a', 15b') which creates a drive connection from the servo-motor drive to a steering gear side of the steering column (10;

• 23), a pawl (14, 14'), during manual exertion of a moment at a steering wheel said pawl (14, 14') is connected with the steering column (10;
• 22) and produces a requisite clutch pressure by a mechanical application on the at least one clutch block, said pawl (14) is constructed adjustably by means of an eccentric stud for the purpose of eliminating slack of any moving parts, a carrier flange (13, 13') is fitted on a driven side of the steering column (10;
• 23), said carrier flange has on an outer ring wall rotatably fitted ring gears (Z3, Z4) openings through which the clutch blocks (15a, 15b, 15a', 15b') which are firmly joined to the carrier flange (13, 13') each selectively contacts an inner diameter of the ring gears (Z3, Z4) by means of clutch shoes (16, 16') to bring about a friction lock, in dependence on the direction of application of the pawl (14, 14').

An electromotive power steering aid for motor vehicles, for a speed range during parking which comprises a steering column and a servo-motor drive, a reduction gear between said servo-motor drive and the steering column, at least one clutch block (15a, 15b, 15a', 15b') which creates a drive connection from the servo-motor drive to a steering gear side of the steering column (10;

• 23), a pawl (14, 14'), during manual exertion of a moment at a steering wheel said pawl (14, 14') is connected with the steering column (10;
• 22) and produces a requisite clutch pressure by a mechanical application on the at least one clutch block, a carrier flange (13, 13') is fitted on a driven side of the steering column (10;
• 23), so that it cannot rotate, said carrier flange has on an outer ring wall rotatably fitted ring gears (Z3, Z4), openings through which the clutch blocks (15a, 15b, 15a' 15b') which are firmly joined to the carrier flange (13, 13') each selectively contacts an inner diameter of the ring gears (Z3, Z4) by means of clutch shoes (16, 16') to bring about a friction lock, in dependence on the direction of application of the pawl (14, 14'), and a housing (25) is provided surrounding the components of the steering aid so that it encapsulates and seals the components and contains an oil filling.

An electromotive power steering aid for motor vehicles, for a speed range during parking which comprises a steering column and a servo-motor drive, a reduction gear between said servo-motor drive and the steering column, at least one clutch block (15a, 15b, 15a', 15b') which creates a drive connection from the servo-motor drive to a steering gear side of the steering column (10;

• 23), a pawl (14, 14'), during manual exertion of a moment at a steering wheel said pawl (14, 14') is connected with the steering column (10;
• 22) and produces a requisite clutch pressure by a mechanical application on the at least one clutch block, a carrier flange (13, 13') is fitted on a driven side of the steering column (10;
• 23), so that it cannot rotate, said carrier flange has on an outer ring wall rotatably fitted ring gears (Z3, Z4), openings through which the clutch blocks (15a, 15b, 15a' 15b') which are firmly joined to the carrier flange (13, 13') each selectively contacts an inner diameter of the ring gears (Z3, Z4) by means of clutch shoes (16, 16') to bring about a friction lock, in dependence on the direction of application of the pawl (14, 14'), and for a purpose of limiting a torsion bar distortion, a recess (14c) is provided on the pawl and contains with a clearance, a stud (21) fixed firmly to the steering column (10).