US 11,447,172 B2 · Steering gear and method for producing the steering gear

Abstract

A steering gear for a steering system of a motor vehicle includes a casing, a toothed gear, a pinion that meshes with the toothed gear, and a pinion shaft that comprises the pinion. The pinion shaft is mounted in a fixed bearing which comprises a rotary bearing in which the pinion shaft is received and which is received in a plastic bearing sleeve. The fixed bearing includes a pivot ring, which has outer and inner rings that are pivotably connected via one or more torsion webs. The torsion webs each extend through an opening in the bearing sleeve. The opening is defined by delimiting surfaces in which at least one of those delimiting surfaces is configured to prevent mechanical overloading of the plastic in the region of said delimiting surfaces as a result of contact with the torsion webs that are functionally deformed during the operation of the steering gear.

Claims8

Dependent claims

A steering gear for a steering system of a motor vehicle, comprising:

a housing;
a gear wheel;
a pinion which meshes with the gear wheel;
and
a pinion shaft which comprises the pinion,
wherein:
the pinion shaft on a first side of the pinion is mounted in a fixed bearing which comprises a rotary bearing in which the pinion shaft is received and which is received in a bearing sleeve of plastics material,
the fixed bearing furthermore has a pivot ring which has an outer ring and an inner ring which by way of a plurality of torsion webs are pivotably connected to one another, the inner ring received in the bearing sleeve and the outer ring mounted within the housing,
the torsion webs extend in each case through an opening in the bearing sleeve, the opening delimited by a plurality of delimitation faces,
at least one delimitation face of the plurality of delimitation faces, which in terms of a longitudinal axis of the bearing sleeve delimits the opening in the axial direction, is disposed so as to be spaced apart from the torsion web received in the opening, and
a void defined between the torsion web and the at least one delimitation face is filled with a material which is dissimilar to the material of the bearing sleeve.

8 more elements

A steering gear for a steering system of a motor vehicle, comprising:

a housing;
a gear wheel;
a pinion which meshes with the gear wheel;
and
a pinion shaft which comprises the pinion,
wherein:
the pinion shaft on a first side of the pinion is mounted in a fixed bearing which comprises a first rotary bearing in which the pinion shaft is received and which is received in a bearing sleeve of plastics material,
the fixed bearing furthermore has a pivot ring which has an outer ring and an inner ring which by way of a plurality of torsion webs are pivotably connected to one another, the inner ring received in the bearing sleeve and the outer ring mounted within the housing,
the torsion webs extend in each case through an opening in the bearing sleeve, the opening delimited by a plurality of delimitation faces,
at least one delimitation face of the plurality of delimitation faces, which in terms of a longitudinal axis of the bearing sleeve delimits the opening in the axial direction, (i) is disposed so as to be spaced apart from the torsion web received in the opening and/or (ii) has a radial width which is smaller than the mean radial width across a circumference of that axial portion of the bearing sleeve in which the at least one delimitation face lies,
the pinion shaft on a second side of the pinion is mounted in a floating bearing which comprises a second rotary bearing in which the pinion shaft is received,
radial mobility within the housing is guaranteed for the second rotary bearing, and
the bearing sleeve and/or a first outer bearing ring of the first rotary bearing of the fixed bearing is connected to a second outer bearing ring of the floating bearing by way of a connection element.

10 more elements

Dependencies are inferred from the claim text.

Steering gear and method for producing the steering gear

Life of this patent

Steering gear and method for producing the steering gear

Life of this patent

Abstract

Claims8