Gear rack steering gear having a progressive reduction

摘要

A motor vehicle steering gear with a gear rack and a drive pinion that meshes with it, which drive pinion comprises a rigidly attached drive projection in a rotational bearing that is on a front face and eccentric to the pinion teething for coupling a motor vehicle steering spindle, said rotational bearing being guided in a direction transverse and parallel to a diametrical plane formed by the pinion teething, such that when the pinion is rotating, compensation strokes for the rotational bearing are specified in a direction transverse to the gear rack, said compensation strokes being caused by the eccentric attachment of the drive projection, a retaining projection rigidly attached at a front face concentrically to the pinion teeth, the retaining projection being rotatably in engagement with the retaining piece that is guided within a gear housing parallel to the gear rack teeth, is and that during pinion rotation compensation strokes parallel with and at a constant distance to the gear rack teeth are specified, which compensation strokes are caused by the eccentric attachment of the driving projection.

主权项

1. A motor vehicle steering gear, comprising a gear rack (2) and a drive pinion (3) that meshes with the gear rack, which drive pinion has a drive projection (12) in a rotational bearing (7) for coupling a motor vehicle steering shaft, the drive projection being rigidly attached at an end face to pinion teeth (10a), the rotational bearing (7, 8) being guided in a direction transverse to a front face that is formed by the pinion teeth (10a), so that when the pinion rotates, compensation strokes (Hvertical) are specified in the a direction transverse to the gear rack (2), said compensation strokes being caused by an eccentric attachment of the drive projection (12), characterized in that a retaining projection (11) is rigidly attached at an end face concentrically to the pinion teeth (10a), the retaining projection being rotatably in engagement with a retaining piece (14) that is guided within a gear housing (1) parallel to gear rack teeth (10b), and pinion rotation for the retaining projection (11) compensation strokes (Hhorizontal) are set parallel with and at a constant distance from the gear rack teeth (10b), said compensation strokes (Hhorizontal) being caused by the eccentric attachment of the drive projection (12).