JP2006264424A - Steering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steering device capable of sufficiently securing the telescopic stroke and the collapse stroke, and enhancing the deflection preventive effect of a displacement preventive member. <P>SOLUTION: A displacement preventive member 50 is within an inner circumference 131B of an inner column 13B over the entire stroke for the telescopic positional adjustment of a steering wheel 11. Thus, even when a gap between an outer circumference 51A of a cylindrical part 51 of the displacement preventive member 50 and the inner circumference 131B of the inner column 13B is set to be as small as 0.1 mm, the telescopic positional adjustment and the collapse movement can be performed smoothly. When the steering wheel is forcibly turned in a locked state, an outer shaft 12A is deflected in the direction separate from a lock key 43. However, the outer circumference 51A of the cylindrical part 51 of the displacement preventive member 50 is abutted on the inner circumference 131B of the inner column 13B to prevent the outer shaft 12A from being deflected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a steering device, and more particularly to a steering device having a steering lock device that locks a steering wheel so as not to turn in order to prevent theft of an automobile when an ignition key is turned to a lock position and pulled out from a keyhole.

  In a steering device having a steering lock device, when the ignition key is turned to the lock position and pulled out from the key hole, the lock key protrudes toward the axial center side of the steering shaft. As a result, the tip of the lock key is engaged with the key lock hole of the key lock collar fixed to the outer periphery of the steering shaft, so that the steering shaft is fixed to the outer column and the rotation of the steering shaft is prevented. I have to.

  However, if the steering wheel is forced to rotate while the steering shaft is locked, the intermediate portion of the steering shaft will bend away from the lock key, and as a result, the steering shaft and the steering shaft will be pivotally supported. There is a case where a large load is applied to the bearing to be operated, and there are steering apparatuses disclosed in Patent Documents 1 and 2 as steering apparatuses that prevent this.

  In the steering device of Patent Document 1, the outer periphery of the displacement preventing member fixed to the key lock collar is in contact with the inner periphery of the outer column, and the steering shaft is prevented from being greatly bent. Further, the steering device of Patent Document 2 forms a recessed portion (displacement preventing member) whose diameter is reduced inward in a part of the outer column, and the outer periphery of the key lock collar is brought into contact with the recessed portion, The steering shaft is prevented from being greatly bent.

  On the other hand, a telescopic steering device that can change the telescopic position of the steering wheel according to the driver's physique and driving posture, and a secondary collision applied to the driver by collapsing to the front of the vehicle during a secondary collision Collapsible steering devices that can mitigate the impact of these are also widely used.

  In such a telescopic or collapsible type steering device, the inner column is slidably fitted in the outer column. Therefore, if a sufficient telescopic stroke or collapse stroke is to be secured, a gap for the inner column to pass is formed between the inner periphery of the outer column and the outer periphery of the displacement prevention member, or between the outer periphery of the key lock collar and the recess. Since it is necessary to ensure between the inner periphery and the inner periphery, the deflection preventing effect of the displacement preventing member is reduced.

Japanese Patent Laid-Open No. 10-86792 Japanese Utility Model Publication No. 51-35809

  It is an object of the present invention to provide a steering device having a steering lock device that sufficiently secures a telescopic stroke and a collapse stroke and that enhances a deflection preventing effect of a displacement preventing member.

  The above problem is solved by the following means. That is, the first invention is an inner shaft and an outer shaft that can be fitted with a steering wheel at one of the ends, incapable of relative rotation and relatively slidable in the axial direction, and the inner shaft. Or an outer column that rotatably supports one of the outer shafts, and the other of the inner shaft and the outer shaft is rotatably supported and is fitted in the outer column so as to be relatively slidable in the axial direction. The inner column, the outer shaft or the outer shaft of the inner shaft is fixed to the outer periphery of the key lock collar formed with a key lock hole, and is provided on either the outer column or the inner column. A lock key engageable with the key lock hole; Is fixed to the outer periphery of the outer shaft facing the inner periphery of Nakoramu a steering apparatus characterized by comprising a displacement preventing member having an outer circumference proximate the inner periphery of the inner column.

  A second invention is an outer column that rotatably supports an outer shaft on which a steering wheel can be mounted on the rear side of the vehicle body, and is relatively non-rotatable and slides relatively in the axial direction on the front side of the outer shaft. An inner shaft that can be fitted, an inner column that rotatably supports the inner shaft and that is fitted inside the outer column so as to be slidable relative to the front side of the vehicle body, and an inner periphery of the outer column. A key lock collar that is fixed to the outer periphery of the outer shaft on the rear side of the vehicle body and that has a key lock hole, is provided on the outer column, and its tip can be engaged with the key lock hole by operating an ignition key Lock key, fixed to the outer circumference of the outer shaft on the front side of the vehicle body facing the inner circumference of the inner column, Further comprising a displacement preventing member having an outer circumference proximate the inner periphery of ram is a steering device characterized by.

  A third invention is an inner column that rotatably supports an inner shaft on which a steering wheel can be mounted on the rear side of the vehicle body, and is relatively non-rotatable and slides relatively in the axial direction on the front side of the inner shaft. An outer shaft that can be fitted, an outer column that rotatably supports the outer shaft and that is fitted on the front side of the inner column so as to be relatively slidable in the axial direction, and an inner periphery of the outer column. A key lock collar that is fixed to the outer periphery of the outer shaft on the front side of the vehicle body that faces and has a key lock hole, is provided on the outer column, and its tip can be engaged with the key lock hole by operating an ignition key Lock key, fixed to the outer circumference of the outer shaft on the rear side of the vehicle body facing the inner circumference of the inner column, Further comprising a displacement preventing member having an outer circumference proximate the inner periphery of the ram is a steering device according to claim.

  According to a fourth invention, in the steering device according to any one of the first to third inventions, the displacement preventing member has a cylindrical outer periphery close to an inner periphery of the inner column. Steering apparatus.

  According to a fifth invention, in the steering device according to any one of the first to third inventions, the material of the displacement preventing member is any one of synthetic resin, aluminum, and copper. Is a steering device.

  According to a sixth aspect of the present invention, in the steering apparatus according to any one of the first to third aspects, the displacement prevention member includes a bearing that rotatably supports the inner shaft on the inner column, and the outer shaft. Is a steering device characterized in that it is disposed at a substantially intermediate position in the axial direction between the shaft and a bearing rotatably supported on the outer column.

  According to a seventh invention, in the steering device of any one of the first to third inventions, the key lock collar is formed with a tapered portion having a small outer diameter on the inner column side. This is a featured steering apparatus.

  In the steering device of the present invention, the displacement preventing member is positioned in the inner column over the entire sliding stroke of the outer column and the inner column that can slide relative to each other in the axial direction. Accordingly, the gap between the outer periphery of the displacement prevention member and the inner periphery of the inner column can be set small, so that the deflection prevention effect of the displacement prevention member can be maximized, and the telescopic stroke or A sufficient collapse stroke can be secured.

* 1st Embodiment Hereinafter, embodiment of this invention is described based on drawing. FIG. 1 shows the entire steering apparatus of the present invention, and is a partially sectional front view showing an embodiment applied to an electric power steering apparatus having a steering assisting portion. FIG. 2 shows a steering apparatus according to the first embodiment of the present invention, and is a longitudinal sectional view of a main part of FIG.

  As shown in FIGS. 1 to 2, the steering device of the present invention includes a steering shaft 12 on which a steering wheel 11 can be mounted on the rear side of the vehicle body (right side in FIGS. 1 and 2), and a steering through which the steering shaft 12 is inserted. An unillustrated rack / pinion mechanism is provided on the column 13, an assist device (steering assisting portion) 20 for applying assist torque to the steering shaft 12, and the front side of the vehicle body of the steering shaft 12 (left side in FIGS. 1 and 2). And a steering gear 30 connected to each other.

  The steering shaft 12 is configured by combining an upper-side outer shaft 12A and a lower-side inner shaft 12B so that rotational force can be transmitted and relative displacement in the axial direction can be achieved by spline engagement. That is, the vehicle body front side of the outer shaft 12A is formed in a hollow cylindrical shape, a female spline 121A is formed on the inner surface of the cylinder, and the male spline 121B formed on the vehicle body rear side of the inner shaft 12B is spline engaged. Yes. It is preferable to coat the spline engagement surface between the outer shaft 12A and the inner shaft 12B with a resin having a small friction coefficient because the relative displacement in the axial direction is smoothly performed.

  Therefore, the outer shaft 12A and the inner shaft 12B are configured to slide relative to each other when the telescopic position (the vehicle longitudinal direction position) of the steering wheel 11 is adjusted and at the time of a secondary collision. Can be shortened.

  The cylindrical steering column 13 inserted through the steering shaft 12 combines the upper outer column 13A and the lower inner column 13B so that they can be telescopically moved. When adjusting the telescopic position of the steering wheel 11, In addition, when an impact in the axial direction is applied at the time of a secondary collision, a so-called collapsible structure is formed in which the entire length is reduced while absorbing energy due to the impact.

  The vehicle rear side of the outer shaft 12A is rotatably supported by the bearing 19A on the inner periphery of the outer column 13A, and the vehicle body front side of the inner shaft 12B can be rotated by a bearing (not shown) on the inner periphery of the inner column 13B. Is pivotally supported. The inner ring of the bearing 19 </ b> A is fixed to the outer shaft 12 </ b> A by a retaining ring 44, and the outer ring is fixed to the outer column 13 </ b> A by a retaining ring 45. In the embodiment of the present invention, since the self-aligning bearing is adopted as the bearing 19A, the telescopic position adjustment can be smoothly performed even if there is a deviation in parallelism between the outer column 13A and the outer shaft 12A. It becomes possible.

  The vehicle body front side end portion of the inner column 13B is press-fitted and fixed to the vehicle body rear side end portion of the gear housing 21. Further, the vehicle body front side end portion of the inner shaft 12B is passed through the inside of the gear housing 21 and connected to the vehicle body rear side end portion of the input shaft (not shown) of the assist device 20.

  The outer column 13A is supported on a part of the vehicle body 18 such as the lower surface of the dashboard by the support bracket 14 on the rear side of the vehicle body. Further, a locking portion (not shown) is provided between the support bracket 14 and the vehicle body 18, and when an impact in a direction toward the front side of the vehicle body is applied to the support bracket 14, the support bracket 14 is locked to the locking bracket 14. It moves away from the vehicle and moves to the front side of the vehicle.

  Further, the upper end portion of the gear housing 21 is pivotally supported on the vehicle body 18 via the pivot pin 22, thereby allowing the tilt position (height position) of the steering wheel 11 to be freely adjusted. Such a tilt mechanism and a telescopic mechanism are well known and are not characteristic features of the present invention.

  The output shaft 23 protruding from the end face on the front side of the vehicle body of the gear housing 21 is connected to the rear end portion of the intermediate shaft 16 via the universal joint 15. Further, the input shaft 31 of the steering gear 30 is connected to the front end portion of the intermediate shaft 16 via another universal joint 17. A pinion (not shown) is coupled to the input shaft 31. A rack (not shown) meshes with the pinion, and the rotation of the steering wheel 11 moves the tie rod 32 to steer a wheel (not shown).

  A case 261 of an electric motor 26 is fixed to the gear housing 21 of the assist device 20, and a worm is coupled to a motor shaft (not shown) of the electric motor 26. The direction and magnitude of the torque applied from the steering wheel 11 to the steering shaft 12 is detected by a torque sensor, and the electric motor 26 is driven in accordance with the detected value, via a reduction mechanism comprising a worm and a worm wheel. An auxiliary torque is applied to the output shaft 23 with a predetermined magnitude in a predetermined direction.

  As shown in FIG. 2, a cylindrical key lock collar 40 is press-fitted and fixed to the outer periphery of the outer shaft 12A on the rear side of the vehicle body (the right side in FIG. 2). A ring 41 formed of spring steel is interposed between the inner periphery of the key lock collar 40 and the outer periphery of the outer shaft 12A. The ring 41 in which the concave and convex portions are alternately formed in the circumferential direction is interposed between the inner circumference of the key lock collar 40 and the outer circumference of the outer shaft 12A by being elastically compressed in the radial direction. The key lock collar 40 is fixed to the outer periphery of the outer shaft 12A by elastic force and friction force.

  The key lock collar 40 is formed with a key lock hole 42. When an ignition key (not shown) is turned to the lock position and pulled out from the key hole, the lock key 43 protrudes toward the axial center of the outer shaft 12A. As a result, the tip of the lock key 43 is engaged with the key lock hole 42 of the key lock collar 40, and the outer shaft 12A is fixed to the outer column 13A to prevent the rotation of the outer shaft 12A. Yes.

  On the outer periphery of the outer shaft 12A, a displacement preventing member 50 is fixed at a position entering the inner column 13B on the front side of the vehicle body (left side in FIG. 2) spaced from the key lock collar 40. The displacement preventing member 50 includes a cylindrical portion 51 that is fitted on the outer periphery of the outer shaft 12A, two elastically deforming portions 52 and 52 that extend from the cylindrical portion 51 to the vehicle body rear side, and the vehicle body of the elastically deforming portions 52 and 52. It has serrated claws 53 and 53 formed at the rear end.

  When the displacement prevention member 50 is inserted from the front end of the outer shaft 12A to the outer periphery of the outer shaft 12A, the claws 53 and 53 are guided to the outer periphery of the outer shaft 12A and moved outward, and the elastic deformation portions 52 and 52 are moved outward. It is elastically deformed. When the displacement preventing member 50 is inserted toward the rear side of the vehicle body in this state, the claws 53 are inserted into the annular locking groove 54 having a rectangular cross section formed on the outer periphery of the outer shaft 12A. Since the claws 53 and 53 are strongly pressed against the locking groove 54 by the elastic force of the elastic deformation portions 52 and 52, they do not come off the locking groove 54.

  The displacement preventing member 50 is in the inner periphery 131B of the inner column 13B over the entire stroke of adjusting the telescopic position of the steering wheel 11 and over the entire stroke of the secondary collision collapsing movement. Therefore, even if the clearance between the outer periphery 51A of the cylindrical portion 51 of the displacement preventing member 50 and the inner periphery 131B of the inner column 13B is set to be as small as about 0.1 mm, the outer periphery 51A of the displacement preventing member 50 is still the inner column. There is no fear of being caught on the inner circumference 131B of 13B. The gap between the outer periphery 51A of the cylindrical portion 51 and the inner periphery 131B of the inner column 13B is preferably set to a range of about 0.1 to 5 mm. Therefore, the telescopic position adjustment and the collapse movement can be performed smoothly, and the telescopic stroke and the collapse stroke can be sufficiently secured.

  The front end of the lock key 43 engages with the key lock hole 42, and the steering wheel 11 is forcibly rotated in a locked state in which the outer shaft 12A is fixed to the outer column 13A. Then, the outer shaft 12A tries to bend in a direction away from the lock key 43, but the outer periphery 51A of the cylindrical portion 51 of the displacement prevention member 50 comes into contact with the inner periphery 131B of the inner column 13B, and the outer shaft 12A bends. Stop that.

  Since the cylindrical outer periphery 51A of the cylindrical portion 51 is in contact with the inner periphery 131B of the inner column 13B, the displacement preventing member 50 exhibits an effect of preventing the deflection regardless of the phase of the outer shaft 12A. The material of the displacement prevention member 50 has a small friction coefficient so that the telescopic position adjustment and the collapse movement can be smoothly performed even when the outer periphery 51A of the displacement prevention member 50 contacts the inner periphery 131B of the inner column 13B. It is desirable to use synthetic resin, aluminum, copper or the like.

  Further, the outer diameter of the outer periphery of the key lock collar 40 is smaller than the inner diameter of the inner periphery 131B of the inner column 13B. A small-diameter taper portion 46 is formed. Therefore, the rear side of the inner periphery 131B of the inner column 13B smoothly enters the tapered portion 46 on the outer periphery of the key lock collar 40 during the secondary collision collapse movement, so that a sufficient collapse stroke can be secured.

  In the first embodiment of the present invention, the outer shaft 12A is disposed on the upper side and the inner shaft 12B is disposed on the lower side. However, the outer shaft 12A may be disposed on the lower side and the inner shaft 12B may be disposed on the upper side. Further, the key lock collar 40 and the lock key 43 are arranged on the upper side, but may be arranged on the lower side.

* 2nd Embodiment Next, the 2nd Embodiment of this invention is described. FIG. 3 is a longitudinal sectional view of a main part of FIG. 1 showing a steering apparatus according to a second embodiment of the present invention. In the following description, only structural parts and operations different from those in the first embodiment will be described, and overlapping descriptions will be omitted.

  The second embodiment is an example in which the present invention is applied to a steering device in which an outer column is disposed on the lower side, an inner column is disposed on the upper side, an outer shaft is disposed on the lower side, and an inner shaft is disposed on the upper side. The second embodiment is different from the first embodiment in the arrangement of the upper side and the lower side, and therefore this difference will be mainly described.

  As shown in FIG. 3, the steering device of the present invention has a rotational force generated by spline engagement between an upper-side inner shaft 12B and a lower-side outer shaft 12A on which a steering wheel (not shown) can be mounted on the rear side of the vehicle body. Can be transmitted freely and can be relatively displaced in the axial direction. That is, the vehicle rear side of the outer shaft 12A is formed in a hollow cylindrical shape, a female spline 121A is formed on the inner surface of the cylinder, and a male spline 121B formed on the vehicle body front side of the inner shaft 12B is in spline engagement. .

  Therefore, the outer shaft 12A and the inner shaft 12B are configured such that the spline engaging portion relatively slides when the telescopic position (position in the longitudinal direction of the vehicle body) of the steering wheel is adjusted and at the time of the secondary collision, thereby reducing the overall length. Can do.

  The cylindrical steering column inserted through the outer shaft 12A and the inner shaft 12B combines the lower outer column 13A and the upper inner column 13B so that they can be telescopically moved. In addition, when an impact in the axial direction is applied at the time of the secondary collision, the so-called collapsible structure is formed in which the entire length is reduced while absorbing energy due to the impact.

  The vehicle body front side of the outer shaft 12A is rotatably supported by the bearing 19A on the inner periphery of the outer column 13A, and the vehicle body rear side of the inner shaft 12B is rotatable by the bearing 19B on the inner periphery of the inner column 13B. It is pivotally supported. The outer ring of the bearing 19A on the front side of the vehicle body is fixed to the outer column 13A by a retaining ring 47. The bearing 19B on the rear side of the vehicle body has an inner ring fixed to the inner shaft 12B by a retaining ring 44 and an outer ring fixed to the inner column 13B by a retaining ring 45.

  In the embodiment of the present invention, since self-aligning bearings are employed as the bearings 19A and 19B, the degree of parallelism between the outer column 13A and the outer shaft 12A and the difference between the inner column 13B and the inner shaft 12B are reduced. Even if there is an error in the parallelism, the telescopic position adjustment can be performed smoothly.

  A cylindrical key lock collar 40 is press-fitted and fixed to the outer periphery of the outer shaft 12A on the front side of the vehicle body (left side in FIG. 3). A ring 41 formed of spring steel is interposed between the inner periphery of the key lock collar 40 and the outer periphery of the outer shaft 12A. The ring 41 in which the concave and convex portions are alternately formed in the circumferential direction is interposed between the inner circumference of the key lock collar 40 and the outer circumference of the outer shaft 12A by being elastically compressed in the radial direction. The key lock collar 40 is fixed to the outer periphery of the outer shaft 12A by elastic force and friction force.

  The key lock collar 40 is formed with a key lock hole 42. When an ignition key (not shown) is turned to the lock position and pulled out from the key hole, the lock key 43 protrudes toward the axial center of the outer shaft 12A. As a result, the tip of the lock key 43 is engaged with the key lock hole 42 of the key lock collar 40, and the outer shaft 12A is fixed to the outer column 13A to prevent the rotation of the outer shaft 12A. Yes. The key hole into which the ignition key is inserted is disposed at a position close to the steering wheel 11 and is electrically connected to a lock mechanism in which the lock key 43 is projected and retracted.

  On the outer periphery of the outer shaft 12A, a displacement preventing member 50 is fixed at a position entering the inner column 13B on the rear side of the vehicle body (the right side in FIG. 3) spaced from the key lock collar 40. The displacement preventing member 50 includes a cylindrical portion 51 that is fitted on the outer periphery of the outer shaft 12A, two elastically deforming portions 52 and 52 that extend from the cylindrical portion 51 to the vehicle body rear side, and the vehicle body of the elastically deforming portions 52 and 52. It has serrated claws 53 and 53 formed at the rear end.

  When the displacement preventing member 50 is inserted into the outer periphery of the outer shaft 12A from the vehicle body rear side end of the outer shaft 12A, the claws 53, 53 are guided to the outer periphery of the outer shaft 12A and moved outward, and the elastic deformation portions 52, 52 are moved. Elastically deforms outward. When the displacement preventing member 50 is inserted toward the front side of the vehicle body in this state, the claws 53 are inserted into the annular locking groove 54 having a rectangular cross section formed on the outer periphery of the outer shaft 12A. Since the claws 53 and 53 are strongly pressed against the locking groove 54 by the elastic force of the elastic deformation portions 52 and 52, they do not come off the locking groove 54.

  The displacement prevention member 50 is located in the inner periphery 131B of the inner column 13B over the entire stroke of adjusting the telescopic position of the steering wheel 11 and over the entire stroke of the secondary collision collapsing movement.

  The front end of the lock key 43 engages with the key lock hole 42, and the steering wheel is forcibly rotated in a locked state in which the outer shaft 12A is fixed to the outer column 13A. Then, the outer shaft 12A tends to bend away from the lock key 43, but the outer periphery 51A of the cylindrical portion 51 of the displacement prevention member 50 comes into contact with the inner periphery 131B of the inner column 13B, and the outer shaft 12A is bent. To prevent.

  In the embodiment of the present invention, the displacement preventing member 50 is set at a substantially intermediate position in the axial distance between the bearings 19A and 19B. If set in this way, the displacement prevention member 50 is positioned at a position where the deflection of the outer shaft 12A is the largest, so that the deflection prevention effect of the displacement prevention member 50 is maximized, which is preferable.

  Since the outer periphery 51A of the cylindrical portion 51 is in contact with the inner periphery 131B of the inner column 13B, the displacement preventing member 50 exhibits a bending preventing effect regardless of the phase of the outer shaft 12A. The material of the displacement prevention member 50 has a small friction coefficient so that the telescopic position adjustment and the collapse movement can be smoothly performed even when the outer periphery 51A of the displacement prevention member 50 contacts the inner periphery 131B of the inner column 13B. It is desirable to use synthetic resin, aluminum, copper or the like.

  The outer diameter of the outer periphery of the key lock collar 40 is formed smaller than the inner diameter of the inner periphery 131B of the inner column 13B. A small-diameter taper portion 46 is formed. Accordingly, the front side of the inner periphery 131B of the inner column 13B smoothly enters the tapered portion 46 on the outer periphery of the key lock collar 40 during the secondary collision collapse movement, so that a sufficient collapse stroke can be secured.

  In the second embodiment of the present invention, the outer shaft 12A is disposed on the lower side and the inner shaft 12B is disposed on the upper side. However, the outer shaft 12A may be disposed on the upper side and the inner shaft 12B may be disposed on the lower side. The key lock collar 40 and the lock key 43 are arranged on the lower side, but may be arranged on the upper side.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which showed the whole steering apparatus of this invention, and was partially cut, Comprising: Embodiment applied to the electric power steering apparatus is shown. It is a longitudinal cross-sectional view of the principal part of FIG. 1 which shows the steering device of the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the principal part of FIG. 1 which shows the steering device of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Steering wheel 12 Steering shaft 12A Outer shaft 12B Inner shaft 121A Female spline 121B Male spline 13 Steering column 13A Outer column 13B Inner column 131B Inner circumference 14 Support bracket 15 Universal joint 16 Intermediate shaft 17 Universal joint 18 Car body 19A, 19B Bearing 20 Assist Device 21 Gear housing 22 Pivoting pin 23 Output shaft 26 Electric motor 261 Case 30 Steering gear 31 Input shaft 32 Tie rod 40 Key lock collar 41 Ring 42 Key lock hole 43 Lock key 44 Retaining ring 45 Retaining ring 46 Taper part 47 Retaining ring 50 Displacement prevention member 51 Cylindrical portion 51A Outer periphery 52 Elastic deformation portion 53 Claw 54 Locking groove

Claims (7)

An inner shaft and an outer shaft, which can be fitted with a steering wheel at one of the ends, are relatively non-rotatable and slidable in the axial direction,
An outer column that rotatably supports either the inner shaft or the outer shaft;
An inner column that rotatably supports the other of the inner shaft and the outer shaft and is fitted in the outer column so as to be relatively slidable in the axial direction;
A key lock collar fixed to the outer periphery of the outer shaft or the inner shaft and having a key lock hole;
A lock key provided on either the outer column or the inner column, the tip of which can be engaged with the key lock hole by operating an ignition key;
A steering apparatus comprising: a displacement preventing member fixed to an outer periphery of an outer shaft facing an inner periphery of the inner column and having an outer periphery close to the inner periphery of the inner column. An outer column that rotatably supports an outer shaft on which a steering wheel can be mounted on the rear side of the vehicle body,
An inner shaft fitted to the front side of the outer shaft of the outer shaft so as not to be relatively rotatable and to be relatively slidable in the axial direction;
An inner column that rotatably supports the inner shaft and that is fitted in the vehicle body front side of the outer column so as to be relatively slidable in the axial direction;
A key lock collar fixed to the outer periphery of the outer shaft on the vehicle body rear side facing the inner periphery of the outer column and having a key lock hole;
A lock key provided on the outer column, the tip of which can be engaged with the key lock hole by operating an ignition key;
A steering apparatus comprising a displacement prevention member fixed to the outer periphery of an outer shaft on the vehicle body front side facing the inner periphery of the inner column and having an outer periphery close to the inner periphery of the inner column. An inner column that rotatably supports an inner shaft on which a steering wheel can be mounted on the rear side of the vehicle body,
An outer shaft fitted to the vehicle body front side of the inner shaft so as not to be relatively rotatable and to be relatively slidable in the axial direction;
An outer column that rotatably supports the outer shaft and is externally fitted on the front side of the inner column so as to be relatively slidable in the axial direction;
A key lock collar fixed to the outer periphery of the outer shaft on the front side of the vehicle body facing the inner periphery of the outer column and having a key lock hole;
A lock key provided on the outer column, the tip of which can be engaged with the key lock hole by operating an ignition key;
A steering apparatus comprising a displacement prevention member fixed to the outer periphery of an outer shaft on the vehicle body rear side facing the inner periphery of the inner column and having an outer periphery close to the inner periphery of the inner column. In the steering apparatus according to any one of claims 1 to 3,
The displacement preventing member is
A steering device having a cylindrical outer periphery close to an inner periphery of the inner column. In the steering apparatus according to any one of claims 1 to 3,
The steering device according to claim 1, wherein the material of the displacement preventing member is any one of synthetic resin, aluminum, and copper. In the steering apparatus according to any one of claims 1 to 3,
The displacement preventing member is
It is arranged at a substantially intermediate position of the axial distance between the bearing that rotatably supports the inner shaft on the inner column and the bearing that rotatably supports the outer shaft on the outer column. Steering device. In the steering apparatus according to any one of claims 1 to 3,
A steering device according to claim 1, wherein the key lock collar is formed with a tapered portion having a small outer periphery on the inner column side.

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