Length-adjustable steering shafts for motor vehicles and profiled sleeves for steering shafts

A technology for motor vehicles and steering shafts, which is applied to steering control installed on vehicles, motor vehicles, bearings for linear motion, etc., and can solve problems such as unfavorable deformation of special-shaped sleeves

Active Publication Date: 2021-10-08
THYSSENKRUPP PRESTA AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the described solution is that two latching lugs are required to fix the profiled sleeve in the axial direction on the inner shaft part, and stress situations arise due to the different coefficients of thermal expansion of the profiled sleeve and the inner shaft part And thus make the special-shaped sleeve unfavorable deformation

Method used

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  • Length-adjustable steering shafts for motor vehicles and profiled sleeves for steering shafts
  • Length-adjustable steering shafts for motor vehicles and profiled sleeves for steering shafts
  • Length-adjustable steering shafts for motor vehicles and profiled sleeves for steering shafts

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Experimental program
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Embodiment Construction

[0028] figure 1 The steering shaft 1 according to the invention is shown in the state before assembly. The steering shaft includes an inner shaft part 2, a special-shaped sleeve 3 to be fixed on the inner shaft part 2, and an outer shaft part 4, and the outer shaft part 4 is placed on the inner shaft part provided with the special-shaped sleeve 3 in the state of completion of installation. Pushing upwards 2 causes the shaft parts 2, 4 to telescopically interlock together in the axial direction 6. The axial direction 6 of the steering shaft 1 corresponds to the direction of the axis of rotation.

[0029] The inner shaft part 2 and the outer shaft part 4 are respectively provided at their non-interlocking ends with a universal joint 5 for changing the direction of the rotational movement of the steering shaft 1 and for adapting to the requirements of the motor vehicle . The adjustability in the axial direction 6 is also used for this purpose.

[0030] In order to transmit th...

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Abstract

A length-adjustable steering shaft (1) for a motor vehicle has an inner shaft part (2) held coaxially on an outer shaft part ( 4), wherein the two shaft parts (2, 4) have in cross-section a profile that engages with each other for the purpose of torque transmission, a special-shaped sleeve (3) is provided on the inner shaft part (2), and the outer The shaft part (4) is arranged on the special-shaped sleeve in a telescopic manner. The improvement of the steering shaft in terms of simplified production is that the special-shaped sleeve (3) surrounds the free end of the inner shaft part (2) in the assembled state. (10) has in the first end region (7) at least one radially inwardly protruding stop ( 8), and in that the end region (12) of the inner shaft part (2) is equipped with radially outwardly protruding projections (13) for abutting against the profiled sleeve (3) in the opposite axial direction (6) . The invention also comprises a profiled sleeve (3) for the aforementioned steering shaft (1) which, with regard to simplified assembly, has at least one radially inwardly protruding stop located in the first end region (7) Department (8).

Description

technical field [0001] The invention relates to a longitudinally adjustable steering shaft for a motor vehicle having an inner shaft part coaxially received in an outer shaft part in a displaceable manner in the axial direction of the steering shaft, wherein the The two shaft parts comprise profiles interlocking in cross-section to transmit torque, and a profiled sleeve is provided between the inner shaft part and the outer shaft part. The invention also relates to a profiled sleeve for said steering shaft. Background technique [0002] DE 20 2010 017 747 U1 discloses a longitudinally adjustable steering axle for a motor vehicle. In order to prevent the profiled sleeve from slipping off in the axial direction on the inner shaft part, the inner shaft part is provided with two radially protruding latch lugs, which are arranged on both sides of the profiled sleeve and fix the profiled sleeve cylinder. The disadvantage of the described solution is that two latching lugs are r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D1/20
CPCB62D1/20B62D1/16F16C2326/24F16D3/06F16C29/02F16C3/035F16C35/02F16D2300/12F16C3/03Y10T403/32475Y10T403/4924Y10T403/7033
Inventor 雅尼克·迪罗马里厄斯·布罗伊尔
Owner THYSSENKRUPP PRESTA AG
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