DE10238655B4 - Cuff for steering spindle - Google Patents

Abstract

cuff (1) for a steering spindle (2) of a motor vehicle with a passage opening (3) between an engine compartment (4) and a passenger compartment (5), wherein the one-piece and material identical trained cuff (1) in a bulkhead bearing (1.1) and in a spindle bearing (1.2) is mounted, characterized in that the sleeve (1) in the direction of the x-axis of the steering shaft (2) over two Windable tunnel cuffs (1.4, 1.5) in their length (6) is adjustable or displaceable.

Description

The The invention relates to a sleeve for a steering shaft within the body of a motor vehicle. The motor vehicle has a passage opening between an engine compartment and a passenger compartment. The cuff is one piece and material identical formed and in a front wall bearing and fastened in a spindle bearing.

It is already a soundproofing on a wall part of a motor vehicle with a through opening surrounding a passage part with a radial spacing and a rubber grommet which in turn bears against the passage part DE 199 57 226 A1 known. In the passage opening a receiving ring is provided, in which the rubber grommet is inserted.

From the DE 44 03 641 C2 goes out a cover for a steering window to bodies of motor vehicles, which is adjustable in the axial direction in length. According to one embodiment, the cover at both openings is firmly connected to the body and the tie rod. The cover has a movement fold, which allows axial length compensation with respect to the movement of the tie rod.

From the DE 199 57 226 A1 goes out a generic cuff.

Of the Invention is based on the object, a sleeve of the above mentioned type such form and order that they are suitable is to compensate for manufacturing or shell tolerances of a body, that they are for Different body models can be used and that they better road noise absorbed.

to solution The object is a cuff with the features of the claim 1 proposed. This is characterized by the fact that the cuff in the direction of the x-axis of the steering shaft via two windable tunnel sleeves adjustable in length or is displaceable.

hereby it is achieved that the cuff in the assembled state due the length adjustment is formed double-walled and driving noise from the engine compartment very well absorbed. In addition, with the sleeve according to the invention shell tolerances the body can be compensated.

For this it is advantageous that the end wall bearing against a body the cuff is adjustable or displaceable, wherein the base body over the one-piece Tunnel sleeve is connected to the end wall bearing. It is thus only a certain portion of the cuff is adjustable in length, whereas the main body as a recording for the mechanism for length adjustment is to be considered.

A additional possibility is according to a further development, that the tunnel sleeve depending on the state of deformation one or two layers the Steering spindle surrounds, wherein the two layers with respect to the x-axis of the steering shaft in the radial direction one above the other can be positioned and wound in the axial direction. By this configuration, the cuff is multilayered by the assembly built up.

Further it is advantageous that the end wall bearing on the second tunnel sleeve connected to a spindle seal, wherein the spindle seal surrounds the steering shaft and abuts the steering shaft. This will the actual length adjustment and the adaptation to the body accomplished.

Advantageous it is also this that the second tunnel sleeve in radial Direction under the tunnel cuff or under an inner wall of the basic body is windable. As a result, the winding is independent of the body structure possible. With the introduction The steering spindle in the spindle seal becomes the spindle seal across from adjusted the steering shaft.

According to one preferred embodiment of inventive solution after all provided that the cuff over an abutment on an engine compartment wall of the passage opening can be applied or fixable. By the construction according to the invention is the cuff in the assembled state under tension, so that a monovalent counter bearing in the direction of the x-axis is sufficient. Perpendicular to the x-axis is the Cuff defined by the spindle bearing.

From special meaning is for the present invention that the cuff with an end wall and connectable to the engine partition and / or at least three, forms the steering spindle surrounding air chambers. The air chambers are essentially cylindrical and be through the body and the tunnel cuffs are formed.

In connection with the design and arrangement according to the invention, it is advantageous that the base body in the radial direction to the x-axis of the steering spindle forms a cylindrical inner wall and a cylindrical outer wall, wherein the inner wall merges into the tunnel sleeve and the outer wall is funnel-shaped at its open end in the region of the tunnel sleeve. By axial pressure on the sleeve, the tunnel sleeve kinks in the transition region to the inner wall of the body by 180 ° and winds on further pushing together towards the anvil.

For this it is advantageous that the tunnel cuff between the inner Wall and the outer wall of the basic body is windable. The main body serves as a recording for a tunnel sleeve, the body in the assembled state closes.

Besides that is it advantageous that the anvil and the spindle bearing on the Area connected to the inner wall and the outer wall of the body are and following the inner wall sequentially the tunnel cuff, connect the end wall bearing, the tunnel sleeve and the spindle seal.

The Tunnel sleeve according to the invention can be one piece produce and seal the steering shaft perfectly.

Further Advantages and details of the invention are in the claims and explained in the description and shown in the figures.

there demonstrate:

1 a sectional view of a mounted sleeve;

2 a sectional view of a sleeve after manufacture;

3 a 3-D view of a cuff according to 2 from the front;

4 a 3-D view of a cuff according to 2 from behind.

In 1 is a sectional view of a mounted cuff 1 shown. This is a steering spindle 2 in a steering spindle bearing 2.1 is stored, from the cuff 1 surround.

The cuff 1 is inserted in a body. For this purpose, the body has an end wall 3.1 and a motor partition 3.2 on. Through the motor partition 3.2 becomes the engine compartment 4 separated, through the front wall 3.1 becomes the passenger compartment 5 separated. Between the front wall 3.1 and the engine partition 3.2 is essentially the cuff 1 arranged.

For carrying out the steering spindle 2 is in the front wall 3.1 a passage opening 3a and in the engine partition 3.2 a passage opening 3b brought in. With the help of the cuff 1 becomes the steering spindle 2 sealed against the body.

At the same time the cuff serves 1 the absorption of driving noise coming from the engine compartment 4 in the passenger compartment 5 penetrate.

To the engine compartment 4 there lies the cuff 1 with a counter bearing 1.7 on the engine partition 3.2 at. The counter bearing 1.7 is part of the body 1.3 the cuff 1 , The counter bearing 1.7 is monovalent. Due to the elasticity and construction of the cuff 1 becomes the counter bearing 1.7 constantly charged and thus seals off.

Further, on the main body 1.3 the cuff 1 a spindle bearing 1.2 provided with the cuff 1 on the steering spindle 2 is applied. The spindle bearing 1.2 forms a kind of sealing lip, through which the cuff 1 to the steering spindle 2 seals off.

From the counter bearing 1.7 and the spindle bearing 1.2 out forms the basic body 1.3 the cuff 1 an inner wall 1.3a and an outer wall 1.3b that the steering spindle 2 surrounded by a cylinder.

The outer wall 1.3b extends along the x-axis of the steering shaft 2 and ends up in a funnel shape at the end. The inner wall 1.3a runs parallel to the outer wall 1.3b and goes into a much thinner tunnel cuff 1.4 above. The tunnel cuff 1.4 runs between the inner wall 1.3a and the outer wall 1.3b , Due to the funnel-shaped configuration of the outer wall 1.3b becomes the inclusion of the tunnel cuff 1.4 facilitated.

The tunnel cuff 1.4 runs cylindrical along the x-axis of the steering shaft 2 and has a first position depending on the mounting state 1.4a and a second location 1.4b on. The layers 1.4a . 1.4b run cylindrically along the x-axis of the steering shaft 2 ,

The tunnel cuff 1.4 goes to a front wall storage 1.1 over, with which the cuff 1 in the front wall 3.1 is attached. For this purpose, the cuff 1 an annular groove 1.8 on, around the entire end wall bearing 1.1 is arranged around. Through the bulkhead bearing 1.1 is the cuff 1 in the front wall 3.1 fixed.

To the front wall bearing 1.1 closes another tunnel cuff 1.5 on that with a spindle seal 1.6 ends. The tunnel cuff 1.5 runs in the assembled state of the cuff 1 zy linderförmig along the x-axis of the steering shaft 2 , The tunnel cuff 1.5 is between the tunnel sleeve 1.4 and the steering spindle 2 arranged. The spindle seal 1.6 seals the cuff 1 opposite the steering spindle 2 from.

In the illustrated mounting state of the sleeve 1 become three air chambers 7a . 7b . 7c educated. The air chambers 7a . 7b . 7c insulate those from the engine compartment 4 coming noise.

As in 2 shown, indicates the cuff 1 before assembly a stretched tunnel sleeve 1.4 and an outer tunnel sleeve 1.5 on. This basic shape of the cuff 1 can be manufactured easier to produce.

To assemble the cuff 1 in their length 6 shortened. To do this, the tunnel cuff rolls 1.4 between the inner wall 1.3a and the outer wall 1.3b of the basic body 1.3 , After that, the cuff 1 at the passage opening 3b the front wall 3.1 attached. The counter bearing 1.7 is located on the engine partition 3.2 at. The length 6 is at the distance between the front wall 3.1 and the engine partition 3.2 customizable. This distance varies due to manufacturing tolerances or due to different body models.

After fixing the cuff 1 on the body is the steering shaft 2 brought in. It takes the steering shaft 2 the spindle seal 1.6 the cuff 1 with and rolls the tunnel cuff 1.5 inside out.

After assembly, the cuff points 1 a configuration on how they are in 1 is shown. The multilayer or multilayer construction of the one-piece sleeve 1 ensures a variable length 6 and a very good sound insulation.

In the 3 and 4 is a perspective view of a cuff 1 shown before assembly. The cuff 1 can be telescoped as described above. To do this, roll the tunnel cuff 1.4 and the tunnel cuff 1.5 inside out.

Same Parts are provided in the figures with the same reference numerals.

1

cuff

1.1

Front wall bearing

1.2

spindle bearings

1.3

body

1.3a

inner wall

1.3b

outer wall

1.4

tunnel cuff

1.4a

location

1.4b

location

1.5

tunnel cuff

1.6

stem seal

1.7

thrust bearing

1.8

ring groove

1.9

Area

2

steering shaft

2.1

Steering spindle bearing

3a

Through opening

3b

Through opening

3.1

bulkhead

3.2

motor bulkhead

4

engine compartment

5

cabin

6

length

7a

air chamber

7b

air chamber

7c

air chamber

Claims (10)

Cuff ( 1 ) for a steering spindle ( 2 ) of a motor vehicle with a passage opening ( 3 ) between an engine compartment ( 4 ) and a passenger compartment ( 5 ), wherein the one-piece and material identical cuff ( 1 ) in a bulkhead bearing ( 1.1 ) and in a spindle bearing ( 1.2 ), characterized in that the cuff ( 1 ) in the direction of the x-axis of the steering spindle ( 2 ) via two windable tunnel cuffs ( 1.4 . 1.5 ) in their length ( 6 ) is adjustable or displaceable. Cuff according to claim 1, characterized in that the end wall bearing ( 1.1 ) with respect to a base body ( 1.3 ) of the cuff ( 1 ) is adjustable or displaceable, wherein the base body ( 1.3 ) via the integral tunnel sleeve ( 1.4 ) with the end wall bearing ( 1.1 ) connected is. Cuff according to claim 1 or 2, characterized in that the tunnel sleeve ( 1.4 ) depending on the state of deformation single or double-layered the steering spindle ( 2 ), the two layers ( 1.4a . 1.4b ) with respect to the x-axis of the steering spindle ( 2 ) can be positioned one above the other in the radial direction and can be wound in the axial direction. Cuff according to one of the preceding claims, characterized in that the end wall bearing ( 1.1 ) via the second tunnel sleeve ( 1.5 ) with a spindle seal ( 1.6 ), wherein the spindle seal ( 1.6 ) the steering spindle ( 2 ) and on the steering spindle ( 2 ) is present. Cuff according to one of the preceding claims, characterized in that the second tunnel sleeve ( 1.5 ) in the radial direction under the tunnel sleeve ( 1.4 ) or under an inner wall ( 1.3a ) of the basic body ( 1.3 ) is windable. Cuff according to one of the preceding claims, characterized in that the cuff ( 1 ) via an abutment ( 1.7 ) on an engine partition ( 3.2 ) of the passage opening ( 3a ) can be applied or fixed. Cuff according to one of the preceding claims, characterized in that the cuff ( 1 ) with an end wall ( 3.1 ) and with the motor partition ( 3.2 ) is connectable and / or at least three, the steering shaft ( 2 ) surrounding air chambers ( 7a . 7b . 7c ). Cuff according to one of the preceding claims, characterized in that the basic body ( 1.3 ) in the radial direction to the x-axis of the steering spindle ( 2 ) has a cylindrical inner wall ( 1.3a ) and a cylindrical outer wall ( 1.3b ), wherein the inner wall ( 1.3a ) into the tunnel cuff ( 1.4 ) passes over and the outer wall ( 1.3b ) at its open end in the region of the tunnel sleeve ( 1.4 ) is funnel-shaped. Cuff according to one of the preceding claims, characterized in that the tunnel sleeve ( 1.4 ) between the inner wall ( 1.3a ) and the outer wall ( 1.3b ) is windable. Cuff according to one of the preceding claims, characterized in that the abutment ( 1.7 ) and the spindle bearing ( 1.2 ) over the area ( 1.9 ) with the inner wall ( 1.3a ) and the outer wall ( 1.3b ) of the basic body ( 1.3 ) and to the inner wall ( 1.3a ) successively the tunnel cuff ( 1.4 ), the end wall bearing ( 1.1 ), the tunnel cuff ( 1.5 ) and the spindle seal ( 1.6 ) connect.