WO2022207394A1

WO2022207394A1 - Bearing cup for a steering column, and steering column having a bearing cup of this type

Info

Publication number: WO2022207394A1
Application number: PCT/EP2022/057344
Authority: WO
Inventors: Hansjoerg Sulser; Lucas SCHALLERT; Manuel Lampert
Original assignee: Thyssenkrupp Presta Ag; Thyssenkrupp Ag
Priority date: 2021-04-01
Filing date: 2022-03-21
Publication date: 2022-10-06
Also published as: CN117255902A; DE102021203356A1

Abstract

The present invention relates to a bearing cup (1) for a steering column, comprising: - a bottom portion (2) having an opening (3) for the feeding of a shaft therethrough; and - a wall portion (4). The bearing cup (1) is designed to receive a rolling element bearing (10) such that the wall portion (4) at least partly surrounds an outer element (11) of a received rolling element bearing (10) and the bottom portion (2) at least partly covers a side (13) of a received rolling element bearing (10). A retaining portion (5) extends radially outward from the wall portion (4). For the positioning of the bearing cup (1) in a jacket tube of a steering column, the retaining portion (5) is designed to be supported against a tube inner wall. The invention also relates to a steering column, comprising a jacket tube and a steering shaft, which is rotatably mounted within the jacket tube by a rolling element bearing (10), wherein the rolling element bearing (10) is disposed in a bearing cup (1), the retaining portion (5) of the bearing cup (1) being supported against an inner wall of the jacket tube.

Description

Bearing pot for a steering column and steering column with such a bearing pot

The invention relates to a bearing pot for a steering column, which includes a base section with an opening for a shaft to pass through and a wall section. The bearing pot is designed to accommodate a roller bearing in such a way that the wall section at least partially encloses an outer element of an accommodated roller bearing, which surrounds the roller bearing in particular in a ring-shaped manner, and the bottom section at least partially covers one side of an accommodated roller bearing.

The invention further relates to a steering column for a motor vehicle with a jacket tube and a steering shaft, the steering shaft being mounted on a roller bearing and being rotatably arranged within the jacket tube.

In addition, the invention relates to a method for preventing a locking pin from jumping out of a locking pin receiving groove of a steering shaft locked with a steering wheel lock or a locking star mounted on a steering shaft locked with a steering wheel lock when torque is applied to the steering shaft, the steering shaft being mounted in a roller bearing.

In the prior art, a bearing pot for steering columns is known as an intermediate component, which is arranged between a bearing that supports a steering shaft and a jacket tube. The disadvantage here is that the bearing has to be mounted in a complex manner in the intermediate component designed as a bearing pot. In addition, the supporting effect in the radial direction is low.

A bearing arrangement for a rotatable shaft is known from DE 20 2009 016 237 U1, the bearing arrangement comprising a roller bearing and a holding element. The holding element is formed in one piece with an inner bearing element of the roller bearing and secures the roller bearing against axial displacement on the shaft. The assembly is sometimes easier. However, the supporting effect in the radial direction is also small. In addition, this bearing arrangement requires the use of a special roller bearing, since the holding element and bearing element are designed in one piece.

Against this background, it is an object of the present invention to provide an improved bearing pot. In particular, both easy assembly and a simpler Installation can be achieved in a jacket tube of a steering column, advantageously with improved functionality of both the bearing pot and the steering column.

To solve this problem, a bearing pot, a steering column and a method according to the independent claims are proposed. Further advantageous configurations of the invention are described in the dependent claims and the description as well as shown in the figures.

The proposed solution provides a bearing pot, in particular a bearing pot for a steering column, which includes a bottom section with an opening for a shaft to pass through and a wall section. The bearing cup is designed to hold a roller bearing in such a way that the wall section at least partially encloses an outer element of a roller bearing that is held, which surrounds the roller bearing in particular in a ring-shaped manner, and the bottom section of the bearing cup at least partly covers one side of a roller bearing that is held. In particular, it is provided that the wall section is designed in the form of a cylinder jacket. The bearing pot also includes a holding section, which extends radially outwards from the wall section, the holding section being designed to be supported against an inner wall of a pipe for arranging the bearing pot in a pipe. Advantageously, by adapting the holding section, a roller bearing can be used in different pipes, which in particular can have different inner pipe diameters. In addition, the holding section advantageously offers a sufficiently rigid support. A roller bearing can also advantageously be easily inserted, in particular pressed, into the receiving area formed by the base section and the wall section. In particular, the holding section can be designed as a holding ring.

According to an advantageous embodiment, it is provided that the holding section of the storage top includes a pull-out safeguard. This pull-out protection advantageously prevents a movement of the bearing pot introduced into a pipe in a direction of insertion counter to the direction of insertion. The insertion direction is the direction in which the bearing pot is inserted into a tube. In particular, it is provided that the outer contour of the holding section forms the pull-out protection.

A further embodiment of the invention provides that the holding section comprises a plurality of holding tongues as protection against being pulled out. These retaining tongues are advantageously designed to be elastically resilient. Advantageously, the retaining tongues are opposite to the insertion direction inclined. As a result, the retaining tongues of a bearing pot inserted into a tube advantageously wedge themselves with an inner tube wall of the tube when an attempt is made to move the bearing pot in the tube counter to the insertion direction. This advantageously achieves a firm and reliable seat of the bearing pot in a tube.

According to a further advantageous embodiment of the invention, the holding section of the bearing pot has stabilizing elements at its outer end, which point radially outwards. The stabilizing elements are advantageously designed to absorb forces acting radially on the bearing pot arranged in a tube. This advantageously further improves the supporting effect in the radial direction. In particular, it is provided that the holding section comprises at least three stabilizing elements. The stabilizing elements are advantageously inclined counter to the insertion direction, but are preferably inclined less than the holding tongues. In particular, it can also be provided that the stabilizing elements are not inclined and in particular lie completely in the plane spanned by the holding section.

Advantageously, the stabilizing elements and the retaining tongues of the holder section are arranged in an alternation, in particular in a regular alternation. In particular, the number of retaining tongues can exceed the number of stabilizing elements. In particular, a ratio of holding tongues to stabilizing elements can be greater than 1:1, in particular greater than 1.4:1, in particular 2:1 or greater than 2:1.

According to a particularly advantageous embodiment of the invention, the bearing pot includes a roller bearing damping limiter. As a result, damping provided by a roller bearing introduced into the bearing pot is advantageously limited. A good damping effect of the bearing is particularly important in steering systems, in order to be able to dampen impacts on a steering column. A good response behavior of this damping effect, however, regularly entails a relatively long damping path. However, a long damping path can lead to a steering shaft deflecting more than desired. With the anti-friction bearing damping limitation provided by the bearing pot, the damping travel is advantageously reduced, and excessive deflection of a steering shaft can thus advantageously be prevented.

An advantageous further development of the bearing pot provides that the bottom section of the bearing pot has a collar that delimits the opening and points in particular radially inwards. Of the Bearing pot is advantageously designed in such a way that, in the case of a roller bearing arranged on a shaft and accommodated by the bearing pot, a distance is formed between the collar and a contact surface facing the collar in the load-free state. This distance is advantageously less than the maximum possible damping path of a roller bearing that is accommodated. In this way, a roller bearing damping limitation is advantageously provided.

According to a further embodiment of the invention, it is provided that the bearing pot is a one-piece integral component. This advantageously simplifies handling and assembly of the bearing pot. In particular, it is provided that the bearing pot is a deep-drawn stamped component. As a result, the bearing pot can advantageously be produced in a cost-effective manner. It is further provided in particular that the bearing pot is at least partially made of a metallic material, in particular is made entirely of a metallic material. The bearing pot is advantageously made of a light metal, in particular aluminum. In particular, the bearing pot can also be made of steel or sheet metal.

The steering column further proposed to solve the problem mentioned at the outset comprises a jacket tube and a steering shaft, which is rotatably arranged inside the jacket tube, supported by at least one roller bearing. The roller bearing is arranged in a bearing pot, which is advantageously designed according to the invention. In particular, the roller bearing is pressed into the bearing pot. The bearing pot arranged in the jacket tube is supported with the holding section against an inner wall of the jacket tube. In particular, a steering column for a motor vehicle is provided, comprising a jacket tube and a steering shaft, the steering shaft being rotatably supported in the jacket tube in a bearing, a bearing pot being arranged between the bearing and the jacket tube, the bearing pot advantageously comprising a shoulder, which is at a distance from a counter-shoulder, the counter-shoulder being advantageously formed by an inner ring of the bearing or by the steering shaft itself. Thanks to this distance, deflection of the steering shaft can advantageously be effectively limited. This is particularly the case when a steering wheel lock is locked and a high torque is applied to the steering shaft. Limiting the deflection can advantageously prevent the locking pin from jumping out of the locking pin receiving groove of the steering shaft or the locking star mounted on the steering shaft. In particular, it is provided that the bearing pot of the steering column comprises a base section with an opening for the steering shaft to pass through and a wall section. The roller bearing is advantageously accommodated by the bearing pot in such a way that the wall section at least partially encloses an outer element of the roller bearing accommodated, which ring surrounds the roller bearing in particular, and the bottom section at least partially covers one side of the roller bearing accommodated. The bearing pot of the steering column advantageously also has a holding section which extends radially outwards from the wall section and is supported against the inner wall of the jacket tube for arranging the bearing pot in the jacket tube. The bearing pot is advantageously a one-piece integral component, in particular a one-component deep-drawn stamped component. In particular, the bearing pot is at least partially made of a metallic material.

The bearing pot of the steering column is advantageously further designed in such a way that the holding section includes a pull-out safeguard that prevents the bearing pot from moving in the steering column jacket against the direction of insertion, the direction of insertion being the direction in which the bearing pot was introduced into the steering column jacket. Advantageously, the holding section includes a plurality of holding tongues as pull-out protection, which are inclined in particular counter to the direction of insertion.

Further advantageously, the holding section of the bearing pot of the steering column has stabilizing elements at its outer end, which in particular point radially outwards and are designed to absorb forces acting radially on the bearing pot arranged in the steering column jacket. In particular, the stabilizing elements are inclined counter to the insertion direction, but preferably less inclined than the holding tongues. The inclination of the stabilizing elements advantageously simplifies the introduction into the casing tube. The stabilizing elements and the retaining tongues are in particular arranged alternately.

According to a particularly advantageous embodiment, it is provided that the bearing pot of the steering column provides a roller bearing damping limitation. In particular, it is provided that the bottom section of the bearing pot has a collar that delimits the opening, in particular a collar that points radially inwards.

Furthermore, an advantageous embodiment provides that the roller bearing of the proposed steering column includes roller bodies, an inner ring, an outer element and at least one shock absorbing element. The outer element, which the rolling bearing in particular as outer ring, in particular surrounds as an outer ring, is advantageously fixed by the bearing pot. The inner ring of the roller bearing is advantageously radially supported by the bearing pot geometry of the retaining ring. The roller bearing is advantageously designed such that when a force is applied, the inner ring can perform a damping movement in the radial direction relative to the outer element, and the damping movement is limited by the roller bearing damping limitation provided by the bearing pot. In particular, it is provided that the collar of the bearing pot in the load-free case is opposite a contact surface at a distance, the collar forming a shoulder against which the contact surface can be supported as a counter-shoulder in the case of a load. The counter-shoulder is advantageously formed by a steering shaft section of the steering shaft. According to an advantageous variant embodiment, the counter-shoulder is formed by a part of the inner ring of the roller bearing. Advantageously, the inner ring of the roller bearing protrudes beyond the outer element of the roller bearing at least on the side facing the bottom section of the bearing pot with an inner ring section, in particular laterally, the counter-shoulder being formed by the inner ring section. The inner ring section is advantageously turned towards the collar of the bearing pot, in particular bent towards it. The distance between the shoulder formed by the collar and the counter-shoulder formed by the steering shaft section or the part of the inner ring allows a damping movement of the roller bearing, but advantageously only until the shoulder and the counter-shoulder make contact. The damping path provided by the roller bearing is thus advantageously limited and bending of the steering shaft of the steering column is also advantageously limited. In particular, limiting the deflection of the steering shaft can advantageously prevent the locking bolt from jumping out of the locking bolt receiving groove of the steering shaft or jumping over the locking star mounted on the steering shaft in the case of a steering shaft locked with a steering wheel lock and comprising a locking bolt receiving groove or a locking star.

In particular, it is provided that the distance, which exists in particular between the shoulder formed by the collar and the counter-shoulder formed by the steering shaft section or the part of the inner ring, is smaller than the vertical distance from a center point of one of the rolling elements to the inner diameter of a shock absorbing element , which, in particular as a rubber ring, supports the outer rings of the roller bearing. It has been found to be advantageous here that, on the one hand, a sufficient damping effect is achieved and, on the other hand, deflection of the steering shaft is sufficiently prevented. A further advantageous embodiment of the steering column provides that the steering shaft has a locking star with a plurality of teeth for interacting with a steering wheel lock, the distance, i.e. in particular the distance between the shoulder formed by the collar and that of the steering shaft section or the part of the Inner ring formed counter-shoulder is smaller than the prongs of the locking star.

With the proposed steering column, a method for preventing a locking bolt from jumping out of a locking bolt receiving groove of a steering shaft locked with a steering wheel lock or for preventing a locking star arranged on a steering shaft and engaged with a fixing element of a steering wheel lock from jumping over can be implemented. In particular, therefore, a method is also proposed for preventing a locking pin from jumping out of a locking pin receiving groove of a steering shaft locked with a steering wheel lock or for preventing a locking star mounted on a steering shaft locked with a steering wheel lock from jumping when torque is applied to the steering shaft, with the steering shaft in a Rolling bearing with an inner ring and an outer element, which surrounds the rolling bearing in particular in a ring-shaped manner, the rolling bearing being arranged in the bearing pot, in particular in a bearing pot designed according to the invention, in a jacket tube, the outer element being fixed relative to the jacket tube by the bearing pot, the steering shaft shifts the inner ring radially relative to the outer element due to the applied torque, and the shifting is limited in that a shoulder of the bearing pot, in particular the shoulder formed by the collar of the bearing pot r, a counter-shoulder formed by a contact surface, which lies opposite the shoulder, makes contact, in particular before skipping can take place. The counter-shoulder is advantageously formed by a steering shaft section or a part of the inner ring of the roller bearing.

Further advantageous details, features and design details of the invention are explained in more detail in connection with the exemplary embodiments illustrated in the figures (FIG. : FIG. It shows:

1 shows a first perspective representation of an exemplary embodiment of a bearing pot designed according to the invention and a roller bearing; FIG. 2 shows the exemplary embodiment and the roller bearing according to FIG. 1 in a second perspective view;

3 shows a perspective view of an exemplary embodiment of a steering column designed according to the invention;

FIG. 4 shows a sectional view of a detail from the exemplary embodiment according to FIG. 3; and

FIG. 5 shows a sectional view of a section of the bearing cup with the pressed-in roller bearing according to FIG. 4.

In the various figures, the same parts are generally provided with the same reference symbols and are therefore sometimes only explained in connection with one of the figures.

In Fig. 1 an embodiment of a bearing pot 1 designed according to the invention and a roller bearing 10 are shown in perspective. Fig. 2 shows the same embodiment rotated in perspective. In this exemplary embodiment, the bearing pot 1 is constructed rotationally symmetrically with respect to the axis 34 and is a one-piece integral component. In particular, the bearing pot 1 can be a one-component deep-drawn stamped component made of a metallic material.

The bearing pot 1 comprises a bottom section 2 and a wall section 4 which form a receiving area for the roller bearing 10 . The wall section 4 is designed as the lateral surface of a cylinder. The base section 2 is in particular flat, but, as shown in FIGS. 1 and 2 , it cannot be flat, in particular in the transition to the wall section 4 , and in particular can have a curvature. The bottom section 2 of the bearing pot 1 also has an opening 3 through which a shaft can be guided. The bottom section 2 also includes a collar 9 that delimits the opening 3. The collar 9 points radially inward, that is, in the exemplary embodiment shown, toward the axis 34.

In the exemplary embodiment shown in FIGS. 1 and 2 , the bearing pot 1 and the roller bearing 10 are matched to one another in such a way that the roller bearing 10 can be pressed into the receiving area of the bearing pot 1 . If the rolling bearing 10 in the is pressed into the receiving area, i.e. is arranged in the bearing pot 1, the wall section 4 partially encloses an outer element 11 surrounding the roller bearing 10 on the outside, wherein the outer element 11 can be designed in particular as an annular sleeve, as shown in Fig. 1 and Fig. 2. The bottom section 2 of the bearing pot 1 partially covers one side 13 of the two sides of the roller bearing 10 . A distance remains between the collar 9 of the base section 2 and a part of the inner ring 12 of the roller bearing 10 that projects laterally beyond the outer element 11 . This distance is less than a maximum possible damping path in the radial direction between the inner ring 12 and the outer element 11 of the roller bearing 10 that is accommodated.

The bearing pot 1 also has a holding section 5 which, starting from the wall section 4 , extends outwards in the radial direction. In particular, the holding section 5 is arranged in a plane that is orthogonal to the axis 34 . The holding section 5 is designed to be supported against an inner wall of the tube for arranging the bearing pot 1 in a tube, in particular for arranging the bearing pot 1 in a casing tube of a steering column. The holding section 5 advantageously forms a diameter increase for the roller bearing 10 so that the roller bearing 10 can be used in pipes with different inner diameters via the configuration of the holding section 5 .

At the outer end of the holding section 5, the holding section 5 in the exemplary embodiment shown in Fig. 1 and Fig. 2 has holding tongues 7 and stabilizing elements 8 designed alternately as pull-out protection 6, with the stabilizing elements 8 and the holding tongues 7 being at the same distance from the axis 34 ends. The bearing pot 1 is designed such that when the roller bearing 10 is pressed into the bearing pot 1, the holding section 5 with the holding tongues 7 and the stabilizing elements 8 is pressed further outwards in the direction of an inner wall of a tube.

In this exemplary embodiment, two holding tongues 7 are always arranged next to one another, followed by a stabilizing element 8 , then two holding tongues 7 again and another stabilizing element 8 etc., the holding section 5 comprising a total of eight stabilizing elements 8 and sixteen holding tongues 7 arranged in a star shape. The number of retaining tongues 7 and stabilizing elements 8 can vary in particular depending on the size of the bearing pot 1 . The stabilizing elements 8 are directed radially outwards and have support surfaces at their ends with which the bearing pot 1 can be supported against the inner wall of a tube, the stabilizing elements 8 being designed to absorb forces which act on the bearing pot in particular via a tube , when the bearing pot 1 is placed in the tube. The forces do not act on the roller bearing 10 due to the stabilizing elements 8, or at least only to a significantly reduced extent.

In the exemplary embodiment shown in FIGS. 1 and 2, the retaining tongues 7 and the stabilizing elements 8 are inclined counter to an insertion direction 30 in which the roller bearing 10 is inserted into the bearing pot 1, in particular due to a curvature of the retaining tongues 7 and the stabilizing elements. The retaining tongues 7 are designed to be elastically flexible to a certain extent. If a force is applied to a bearing pot 1 inserted into a pipe counter to the insertion direction 30, the retaining tongues 7 act like barbs and prevent the bearing pot 1 from being moved in this direction. Since the retaining tongues 7 tend to be further erected, this blocking effect increases.

An exemplary embodiment of a steering column 20 designed according to the invention is explained in more detail below with reference to FIGS. 3 to 5 . In this exemplary embodiment, the steering column 20 is a manually adjustable steering column. In particular, however, it can also be provided that the steering column is designed to be electrically adjustable or not designed to be adjustable.

The steering column 20 shown in Fig. 3 comprises a first casing tube 21 and a second casing tube 22, wherein the first casing tube 21 can be pushed telescopically into the second casing tube 22 or pulled out of the second casing tube 22 for a longitudinal adjustment of the steering column. To do this, the fixing lever 27 of the steering column 20 must be released. The second jacket tube 22 is also arranged via a hinge 29 and in the region of the fixing lever hinge on a support unit 26 with which the steering column 20 can be arranged on a body part of a motor vehicle. When the fixing lever 27 is released, the height of the steering column 20 can also be adjusted due to the oblong hole that is partially covered by the fixing lever 27 in FIG. 3 .

The steering column 20 further includes a steering shaft 23. The steering shaft 23 is rotatably arranged within the first jacket tube 21 and the second jacket tube 22, with a steering handle, in particular a steering wheel, being arranged at the end 28 of the steering shaft 23 can. The steering shaft 23 is supported by a roller bearing 10 , the roller bearing 10 being arranged in a bearing pot 1 . The bearing pot 1 with the roller bearing 10 is inserted into the first jacket tube 21 .

The arrangement of the bearing pot 1 with the roller bearing 10 inserted into the bearing pot 1 in the first jacket tube 21 is shown in detail in the sectional view of FIG. 4 .

Fig. 5 shows the bearing pot 1 together with the roller bearing 10 in a further representation without the steering shaft 23 and without the first jacket tube 21.

In this exemplary embodiment, the roller bearing 10 comprises an inner ring 12, a multiplicity of rolling elements 14, a first outer ring 17 and a second outer ring 18. The outer rings 17, 18 are held by a shock absorbing element 16, which is supported against a sleeve-shaped outer element 11. The shock absorbing element 16 is formed by two rubber rings in this embodiment. The shock absorbing element 16 allows a damping movement 33 of the inner ring 12 relative to the outer element 11 in the radial direction 32 up to a maximum damping path. As a result, forces that are exerted on the steering shaft 23 in the radial direction are damped. The inner ring 12 of the roller bearing 10 protrudes laterally beyond the outer element 11 with an inner ring section 15 . The roller bearing 10 is pressed into the bearing pot 1 .

The bearing pot 1 comprises a wall section 4 and an adjoining base section 2 with an opening 3 and a collar 9 delimiting the opening 3 , the steering shaft 23 being guided through the opening 3 . The bottom cut 2 partially covers the side 13 with which the roller bearing 10 is introduced into the bearing pot 1 . The wall section 4 of the bearing pot 1 partially encloses the outer element 11 of the received roller bearing 10 and thereby fixes the outer element 11 of the roller bearing 10 relative to the first jacket tube 21 extends radially outwards, is supported against the inner wall 24 of the first jacket tube 21 . At the outer end of the holding section 5, the holding section 5 has stabilizing elements 8 and holding tongues 7 as protection against being pulled out. The holding section 5 with the stabilizing elements 8 and the holding tongues 7 can be designed in particular as explained with reference to FIGS. 1 and 2 . The retaining tongues 7 secure the bearing pot 1 against movement counter to the insertion direction 30. The bearing pot 1 and the roller bearing 10 are matched to one another in such a way that the collar 9 and the inner ring section 15, which is bent towards the collar 9, face each other. The collar 9 forms a shoulder and the inner ring section 15 forms a counter-shoulder, which are located opposite one another at a distance 31 . This distance 31 is smaller than the maximum damping path technically specified by the roller bearing 10 . In particular, the distance 31 is smaller than the vertical distance from the center point of one of the rolling elements 14 to the inner diameter of a shock absorbing element 16.

In an embodiment variant that is not shown, it can also be provided that the inner ring 12 of the roller bearing 10 does not protrude laterally beyond the outer element 11 and instead a steering shaft section 25 forms the counter-shoulder, which is arranged at a distance 31 from the collar 9 .

If a force is now exerted on the steering shaft 23 so that the inner ring 12 of the roller bearing 10 moves in a damping movement in the radial direction 32 relative to the outer element 11 of the roller bearing 10, this damping movement is not technically limited by the roller bearing 10, but by the Meeting of the shoulder formed by the collar 9 and the counter-shoulder formed by the inner ring portion 15. This also limits deflection of the steering shaft 23 .

This limitation of the deflection of the steering shaft 23 is particularly advantageous as protection for the steering shaft 23 which is fixed with a steering wheel lock. A steering wheel lock is used in motor vehicles as a safeguard against unauthorized start-up of the motor vehicle. In order to circumvent this safeguard, attempts are sometimes made to overcome the steering wheel lock by applying high torques to the steering shaft 23 .

Here, a steering column 20 explained with reference to FIGS. 3 to 5 is suitable to be used for a method for preventing damage to the steering shaft 23 and for a method for preventing the steering wheel lock from being defeated. Depending on the design of the steering wheel lock, it can be provided that the method for preventing a locking bolt from jumping out of a locking bolt receiving groove of a steering shaft 23 locked with a steering wheel lock or for preventing a locking star mounted on a steering shaft 23 locked with a steering wheel lock from jumping when a torque is applied the steering shaft 23 is formed. The steering shaft 23 is included, in particular as with reference to the exemplary embodiment shown in FIGS. 3 to 5 described, mounted in a roller bearing 10 with an inner ring 12 and an outer element 11, wherein the roller bearing 10 is arranged in a bearing pot 1 in a jacket tube 21. During the process, the outer element 11 is fixed relative to the casing tube 21 by the bearing pot 1 . The steering shaft 23 shifts the inner ring 12 radially relative to the outer element 11 due to the applied torque. This shifting is limited in that the shoulder formed by the collar 9 of the bearing pot 1 contacts a counter-shoulder formed by a contact surface 15, 25 opposite the shoulder. This contact prevents further displacement of the inner ring 12 relative to the outer element 11 and thus also further bending of the steering shaft 23 and thus also that the steering shaft 23 is bent so far that the locking pin from a

Locking pin receiving groove can jump or that a locking pin skips a prong of a locking star.

The exemplary embodiments illustrated in the figures and explained in connection with these serve to explain the invention and are not restrictive of it.

Reference List

1 storage pot

2 floor section

3 opening

4 wall section

5 holding section

6 pull-out protection

7 retaining tab

8 stabilizing element

9 fret

10 roller bearings

11 outer element

12 inner ring

13 side of roller bearing (10)

14 rolling elements

15 inner ring section

16 shock absorbing element

17 first outer ring

18 second outer ring

20 steering column

21 first jacket tube

22 second jacket tube

23 steering shaft

24 inner wall of the first jacket tube (21)

25 steering shaft section

26 carrying unit

27 fixing lever

28 end of the steering shaft (23) for receiving a steering handle

29 hinge

30 insertion direction

31 distance

32 radial direction

33 damping movement

34 axis

Claims

Expectations

1. Bearing pot (1) for a steering column (20) comprising a base section (2) with an opening (3) for passing through a shaft (23) and a wall section (4), wherein the bearing pot (1) is formed, a roller bearing ( 10) in such a way that the wall section (4) at least partially encloses an outer element (11) of a received roller bearing (10) and the bottom section (2) at least partially covers one side (13) of a received roller bearing (10), characterized by a holding section (5) which extends radially outwards from the wall section (4), the holding section (5) being designed to be supported against an inner wall (24) of the pipe for arranging the bearing pot (1) in a pipe (21).

2. Bearing pot (1) according to claim 1, characterized in that the holding section (5) comprises a pull-out safeguard (6) which causes a movement of the bearing pot (1) inserted into a tube (21) in an insertion direction (30) counter to the insertion direction (30) prevented.

3. Bearing pot (1) according to claim 2, characterized in that the holding section (5) comprises a plurality of holding tongues (7) as a pull-out safeguard (6).

4. Bearing pot (1) according to claim 3, characterized in that the retaining tongues (7) are inclined counter to the insertion direction (30).

5. Bearing pot (1) according to one of the preceding claims, characterized in that the holding section (5) has stabilizing elements (8) at its outer end, which point radially outwards and which are intended to receive radially on the in a tube (21) arranged bearing pot (1) acting forces are formed.

6. bearing pot (1) according to claim 5 as far as dependent on claim 3 or claim 4, characterized in that the stabilizing elements (8) and the retaining tongues (7) are arranged in an alternation.

7. bearing pot (1) according to any one of the preceding claims, characterized by a rolling bearing damping limitation.

8. bearing pot (1) according to any one of the preceding claims, characterized in that the bottom portion (2) has a collar (9) delimiting the opening (3), wherein the bearing pot (1) is designed such that in a on a shaft (23) and held by the bearing pot (1) in the load-free state, a distance (31) is formed between the collar (9) and a contact surface (15, 25) facing the collar (9), this distance being (31) is less than a maximum possible damping path of a roller bearing (10) that is accommodated.

9. Bearing pot (1) according to claim 8, characterized in that the collar (9) points radially inwards.

10. bearing pot (1) according to any one of the preceding claims, characterized in that the bearing pot (1) is a one-piece integral component.

11. bearing pot (1) according to any one of the preceding claims, characterized in that the bearing pot (1) is a deep-drawn stamped component.

12. bearing pot (1) according to any one of the preceding claims, characterized in that the bearing pot (1) is at least partially made of a metallic material.

13. The steering column (20) comprising a jacket tube (21) and a steering shaft (23) which is mounted on at least one roller bearing (10) and is rotatably arranged inside the jacket tube (21), characterized in that the roller bearing (10) is in a bearing pot (1) is arranged according to one of the preceding claims, wherein the bearing pot (1) is supported with the holding section (5) against an inner wall (24) of the jacket tube (21).

14. Steering column (20) according to claim 13, characterized in that the roller bearing (10) is pressed into the bearing pot (1).

15. Steering column (20) according to claim 13 or claim 14, characterized in that the rolling bearing (10) comprises rolling elements (14), an inner ring (12), an outer element (11) and at least one shock absorbing element (16), the outer element (11) is fixed by the bearing pot (1), the roller bearing (10) being designed in such a way that when a force is applied, the inner ring (12) executes a damping movement (33) in the radial direction (32) relative to the outer element (11). can, and where the damping movement (33) is limited by the rolling bearing damping limitation provided by the bearing cup (1).

16. Steering column (20) according to claim 15, characterized in that the collar (9) of the bearing pot (1) in the load-free case is opposite a contact surface (15, 25) at a distance (31), the collar (9) having a shoulder forms, against which the contact surface (15, 25) can be supported as a counter-shoulder in the event of a load.

17. Steering column (20) according to claim 16, characterized in that the counter-shoulder is formed by a steering shaft section (25) of the steering shaft (23).

18. Steering column (20) according to claim 16, characterized in that the counter-shoulder is formed by part of the inner ring (12) of the roller bearing (10).

19. The steering column (20) according to claim 18, characterized in that the inner ring (12) protrudes laterally beyond the outer element (11) at least on the side (13) facing the bottom section (2) of the bearing pot (1) with an inner ring section (15). , wherein the counter-shoulder is formed by the inner ring section (15).

20. Steering column (20) according to claim 19, characterized in that the inner ring section (15) is bent towards the collar (9) of the bearing pot (1).

21. Steering column (20) according to one of Claims 16 to 20, characterized in that the distance (31) is smaller than the vertical distance from a center point of one of the rolling elements to the inner diameter of a shock absorbing element (16) which has outer rings (17, 18 ) of the roller bearing (10).

22. The steering column (20) according to any one of claims 16 to 21, characterized in that the steering shaft (23) has a locking star with a plurality of teeth for interacting with a steering wheel lock, the spacing (31) being smaller than the teeth of the locking star is.

23. Method for preventing a locking pin from jumping out of a locking pin receiving groove of a steering shaft (23) locked with a steering wheel lock or for preventing a locking pin from jumping on a steering shaft with a steering wheel lock locked steering shaft (23) when a torque is applied to the steering shaft (23), the steering shaft (23) being mounted in a roller bearing (10) with an inner ring (12) and an outer element (11), the roller bearing (10 ) Is arranged in a bearing pot (1) according to any one of claims 1 to 12 in a casing tube (21), wherein the outer element (11) relative to the casing tube (21) through the

Bearing pot (1) is fixed, the steering shaft (23) moves the inner ring (12) radially relative to the outer element (11) due to the applied torque, and the displacement is limited in that one of a collar (9) of the bearing pot (1 ) formed shoulder contacts a counter-shoulder formed by a contact surface (15, 25) lying opposite the shoulder.