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Steering device

By designing the multi-diameter key lock collar and slip ring structure in the steering device, combined with grease, the existing steering lock mechanism is easy to break and the problem of dimensional accuracy management is solved, achieving a more stable slip torque and greater allowable size range.

Active Publication Date: 2015-07-22
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steering lock mechanism includes a key lock collar (key lock collar) embedded on the steering shaft and a steering lock device installed on the steering column outside the key lock collar. The groove of the key lock collar, etc. fits, thereby restricting the rotation of the steering shaft, so that it cannot be steered when the vehicle is stolen, etc.
[0003] In the conventional steering lock mechanism, if the steering wheel is turned with a large force while the steering is locked, the steering lock mechanism will be damaged and the locking function will be impaired.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0057] refer to Figure 1 to Figure 5B A first embodiment of the present invention will be described. figure 1 It is a side view showing the steering device according to the first embodiment of the present application.

[0058] Steering device 1 mainly comprises: will be installed on vehicle rear side (towards figure 1 is the right side) the steering wheel (not shown) is rotated toward the front side of the vehicle (towards figure 1 Steering shaft 2 that transmits to the left side); steering column 3 that pivotally supports the steering shaft 2; and position adjustment that fixes the vehicle rear side portion of the steering device 1 to the vehicle body and enables tilt position adjustment and telescopic position adjustment Institution 4.

[0059] figure 2 It is an enlarged cross-sectional view of the vicinity of the position adjustment mechanism 4 of the steering device 1 according to the first embodiment of the present application.

[0060] A key lock collar 5 constitu...

no. 2 Embodiment approach

[0077] Next, while referring to Figure 6A , Figure 6B A steering device according to a second embodiment of the present application will be described. The steering device according to the second embodiment differs from the steering device 1 according to the first embodiment only in the shape of the slip ring, and the other configurations are the same as those of the first embodiment. Therefore, in the description of the second embodiment, only the shape of the slip ring will be described, and the description of other configurations will be omitted.

[0078] Figure 6A , Figure 6B It is a figure which shows the slip ring 20 of the steering apparatus concerning 2nd Embodiment of this application. Figure 6A is a top view, Figure 6B yes Figure 6A Sectional view 6B-6B shown.

[0079] The cross section of the slip ring 20 is substantially C-shaped, and a plurality of protrusions 21 protruding radially outward and extending in the axial direction from near one end to nea...

no. 3 Embodiment approach

[0083] refer to Figure 7A to Figure 10B A third embodiment of the present application will be described. The steering device according to the third embodiment of the present application differs from the steering device according to the second embodiment only in the shape of the key lock collar 35 , and is otherwise the same as the second embodiment. Therefore, in the description of the third embodiment, only the shape of the key lock collar 35 will be described, and other descriptions will be omitted.

[0084] Figure 7A , Figure 7B , Figure 7C , Figure 7D It is a figure which shows the key lock collar 35 which concerns on the 3rd Embodiment of this application. Figure 7A means the side, Figure 7B Indicates the end face, Figure 7C express Figure 7A Section 7C-7C shown, Figure 7D express Figure 7B 7D-7D section shown. The key lock collar 35 differs from the above-mentioned key lock collar 5 in that the portion where the elongated holes 36a, 36b are formed a...

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PUM

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Abstract

A steering apparatus (1) is provided, which includes: a key lock collar (5) being fitted on a steering shaft (2) and restricted from rotating by a steering lock mechanism when performing a steering lock; and a slip ring (8) being interposed between the steering shaft (2) and the key lock collar (5) in radial directions, wherein the slip ring (8) includes a plurality of protruded portions (9) protruding outwardly or inwardly in the radial directions and being provided in a circumferential direction, and an inner peripheral portion of the key lock collar (5) covering the slip ring (8) is formed with large-diameter portions (7a) and small-diameter portions (7b) in the axial direction, thereby further stabilizing slip torque of the key lock and enlarging a range of dimensional allowance.

Description

technical field [0001] The present invention relates to a steering device mounted on a vehicle or the like. Background technique [0002] Conventionally, there have been steering devices equipped with a steering lock mechanism that restricts rotation of a steering wheel in order to prevent a vehicle from being stolen. The steering lock mechanism includes a key lock collar (key lock collar) embedded on the steering shaft and a steering lock device installed on the steering column outside the key lock collar. A groove or the like of the key lock collar is fitted to restrict the rotation of the steering shaft, making it impossible to steer the vehicle when the vehicle is stolen or the like. [0003] In the conventional steering lock mechanism, if the steering wheel is rotated with a large force while the steering is locked, the steering lock mechanism will be damaged and the locking function will be impaired. [0004] Therefore, there is a mechanism in which the key lock coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/021
CPCB60R25/02105B60R25/023B60R25/02107
Owner NSK LTD