Steering column arrangement with torsion damper element, and assembly method

Patent metadata

Field	Value
Publication number	US-9592847-B2
Application number	US-201314386989-A
Country	US
Kind code	B2
Filing date	Jan 19, 2013
Priority date	Mar 23, 2012
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A steering column arrangement has a sliding sleeve and a universal joint yoke, which has a receiving section in which the sliding sleeve is included at least in sections and coaxially. The covering outer surface of the sliding sleeve and the covering inner surface of the receiving section have molded components for the positive connection. A torsion damper element is arranged between the sliding sleeve and the receiving section of the universal joint yoke. This is an annular arrangement, including an inner carrier ring, an outer carrier ring and an elastomer ring arranged between them. The inner carrier ring and outer carrier ring are elastic in a radial direction and rigid in an axial direction.

First claim

The invention claimed is:

1. A steering column arrangement, comprising:
a sliding sleeve having a stopper directly arranged on the sliding sleeve;
a universal joint yoke having a receiving section with a receiving opening, in which the sliding sleeve is included at least in sections and coaxially, wherein an outer surface of the sliding sleeve and an inner surface of the receiving section have components for positive connection, wherein the receiving section has at least one radially inwardly facing stepped projection on an end of the receiving section facing away from the receiving opening; and
a torsion damper element arranged between the sliding sleeve and the receiving section of the universal joint yoke,
wherein the torsion damper element is an annular arrangement, which comprises an inner carrier ring, an outer carrier ring, and an elastomer ring arranged between the inner and outer carrier rings,
wherein the inner carrier ring and the outer carrier ring are elastic in a radial direction and inelastic in an axial direction,
wherein the elastomer ring has at least one of an axial keyhole slot, a blind hole, and a through hole, and
wherein an end of the inner carrier ring is in contact with the stopper of the sliding sleeve and an end of the outer carrier ring is in contact with the at least one radially inwardly facing stepped projection of the receiving section.

2. The steering column arrangement of claim 1 , wherein
the stopper is arranged on a covering of the sliding sleeve, wherein the stopper is formed from an annular collar, pin or latches,
the steering column arrangement further comprises a securing element, which is arranged on an end of the torsion damper element facing away from the stopper,
the securing element is a plate spring or circlip,
the stopper is provided adjacent to the receiving opening of the receiving section within the receiving section or adjacent to an end of the sliding sleeve received in the receiving section.

3. The steering column arrangement of claim 1 , wherein the at least one radially inwardly facing stepped projection provides a second stopper for the torsion damper element and for the sliding sleeve via the torsion damper element.

4. The steering column arrangement of claim 2 , wherein the steering column arrangement comprises a second securing element, which is a securing ring arranged in the receiving opening of the receiving section, wherein the stopper of the sliding sleeve provided adjacent to the receiving opening of the receiving section comes into contact with the second securing element, and wherein an overhang of the receiving section allows the securing element to fit on the receiving opening.

5. The steering column arrangement of claim 1 , further comprising:
an annular groove on a covering of the sliding sleeve;
at least one fastening element, corresponding to the annular groove, on an inner surface of the inner carrier ring, comprising an annular collar or at least one latch, wherein the at least one fastening element engages with the annular groove, and the outer carrier ring is formed adjacent to the receiving opening of the receiving section with a radially outwardly protruding annular collar, which comes into contact with a radially inwardly facing layer on the inner surface of the receiving section adjacent to the receiving opening; and
a securing element, which is a securing ring arranged in the receiving opening of the receiving section, wherein the outer carrier ring with the radially outwardly protruding annular collar comes into contact with and is fixed by the securing element.

6. The steering column arrangement of claim 1 , wherein
the outer and inner carrier rings are made from plastic.

7. The steering column arrangement of claim 1 , wherein the outer surface of the sliding sleeve, the torsion damper element and the inner surface of the receiving section have contours that are coordinated with one another, which form the components for the positive connection and form a polygonal, six-sided, star-shaped, or toothed contour.

8. The steering column arrangement of claim 1 , wherein a covering of the sliding sleeve has
at least one projection extending radially outwards, or
two or more projections extending radially outwards on a periphery of the outer surface, wherein the at least two projections are arranged in pairs opposite one another or are distributed evenly, and
wherein the projection or the projections is/are received with clearance in a corresponding recess of the inner surface of the receiving section.

9. The steering column arrangement of claim 1 , wherein the sliding sleeve has at least two axial grooves located opposite one another on an inner surface of a covering of the sliding sleeve, wherein the at least two axial grooves engage with a respective spring located on a steering spindle part that is inserted into the sliding sleeve.

10. An assembly method for a steering column arrangement, the method comprising:
providing a sliding sleeve having a stopper directly arranged on the sliding sleeve and a universal joint yoke having a receiving section with a receiving opening for the sliding sleeve, wherein the receiving section has at least one radially inwardly facing stepped projection on an end of the receiving section facing away from the receiving opening;
producing an annular arrangement by inserting an elastomer ring between an inner carrier ring and an outer carrier ring, wherein the inner and outer carrier rings are elastic in a radial direction and inelastic in an axial direction and the elastomer ring has at least one of an axial keyhole slot, a blind hole, and a through hole;
pressing the annular arrangement onto the sliding sleeve;
pressing the sliding sleeve with the annular arrangement into the receiving section; and
connecting a yoke part of the universal joint yoke with a steering wheel-side counter element and receiving a steering spindle in the sliding sleeve, and
wherein an end of the inner carrier ring is in contact with the stopper of the sliding sleeve and an end of the outer carrier ring is in contact with the at least one radially inwardly facing stepped projection of the receiving section.

11. The assembly method of claim 10 , further comprising at least one of the steps:
axial positioning the annular arrangement on the sliding sleeve when pressing the annular arrangement on the stopper, and axial positioning of the sliding sleeve with the annular arrangement in the receiving section, when pressing on the at least one radially inwardly facing stepped projection;
pressing a first securing element onto the sliding sleeve on an end of the annular arrangement facing away from the stopper; and
fitting a second securing element by pressing the second securing element in the receiving opening of the receiving section and an overhang of the receiving section on the receiving opening.

12. The assembly method of claim 10 , further comprising at least one of the steps:
axial positioning of the annular arrangement on the sliding sleeve when pressing the annular arrangement into an annular groove of the sliding sleeve by locking a fastening element of the inner carrier ring into place;
axial positioning of the sliding sleeve with the annular arrangement in the receiving section when pressing on an inner surface of the receiving section adjacent to the receiving opening by an outwardly protruding annular collar of the outer carrier ring coming into contact with a radially inwardly facing layer; and
ribbing the annular collar and fixing the annular collar in the receiving section on the receiving opening by pressing a securing element in the receiving opening

Assignees

• Daimler Ag

Inventors

• Hansen Detlef
• Harms Torsten
• Hartmann Horst
• Rohwer Frank
• Schwieger Marco

Classifications

• F16D3/12

  specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D3/80) · CPC title

• F16D3/76

  shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part · CPC title

• F16D2300/22

  Vibration damping · CPC title

• Y10T29/4984

  Retaining clearance for motion between assembled parts · CPC title

• F16D2250/0084

  Assembly or disassembly · CPC title