JP2001347953A - Vehicular steering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To significantly enhance rigidity of a steering column for tilt adjustment or telescopic adjustment. SOLUTION: This device is composed so that a pair of clamp members 12 and 12 is provided in an inner side of a lower side outer column 4 so as to hold an upper side inner column 3 and this pair of clamp members 12 and 12 is moved by a clamping bolt 13 so as to mutually approach for holding and clamping the upper side inner column 3 by this pair of clamp members 12 and 12. Since it is composed so that the upper side inner column 3 is directly clamped by the lower side outer column 4 in such manner, rigidities of both columns 3 and 4 can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle steering system. In particular, the present invention relates to a vehicle steering device that can adjust a tilt angle of a steering shaft and / or an axial position of the steering shaft according to a driving posture of a driver.

[0002]

2. Description of the Related Art As a vehicle steering system, there is a tilt / telescopic type steering system capable of adjusting an inclination angle of a steering wheel and an axial position of the steering wheel in accordance with a driving posture of a driver.

For example, in a tilt telescopic steering apparatus disclosed in Japanese Patent Application Laid-Open No. H11-278283, an upper inner column is slidably inserted and fitted into a lower outer column. A distance bracket having a telescopic adjustment groove is attached to the inner column on the upper side, and the distance bracket is configured to be in sliding contact with a vehicle body side bracket having a tilt adjustment groove.
A tightening bolt is inserted into the telescopic adjustment groove and the tilt adjustment groove, and an operation lever is attached to one end of the tightening bolt.

Thus, when the operating lever is swung, the tightening bolt moves in the axial direction to release the tightening of the vehicle body side bracket and the distance bracket, and the tightening bolt is moved vertically along the tilt adjusting groove. By moving, the inclination angle of the inner column on the upper side can be adjusted, and the inner column can move in the axial direction along the telescopic adjustment groove of the distance bracket to adjust the axial position.

After the tilt and telescopic adjustment,
When the operation lever is swung in the opposite direction, the tightening bolt moves in the axial direction and presses the vehicle body side bracket against the distance bracket, thereby tightening the upper side inner column after tilt and telescopic adjustment. Can be. Further, as described above, both the tilt adjustment and the telescopic adjustment can be performed by swinging one operation lever.

[0006]

In the tilt telescopic steering apparatus disclosed in the above publication, an inner column on the upper side is slidably fitted to an outer column on the lower side to increase the rigidity of both columns. are doing.

However, the inner column on the upper side is not necessarily directly clamped to the outer column on the lower side, so that when a bending load is applied to the steering wheel (ie, the steering wheel is twisted in the vertical direction). ), The inner column on the upper side sometimes moves so as to swing slightly, and the rigidity of both columns was not necessarily high.

It is conceivable to increase the rigidity by providing a plurality of reinforcing plates on the distance bracket provided on the inner column on the upper side. However, the increase in the number of parts may lead to an increase in manufacturing costs. There is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to provide a vehicle steering apparatus in which the rigidity of a steering column is significantly increased and the tilt and / or telescopic position can be adjusted. And

[0010]

In order to achieve the above object, a steering apparatus for a vehicle according to the first aspect of the present invention comprises:
An inner column rotatably supporting one end of the steering shaft, and an outer column rotatably supporting the other end of the steering shaft and slidably fitting the inner column; A pair of clamp members formed integrally with the outer column and each having a holding surface for holding the inner column, and moving the pair of clamp members so as to approach each other, the inner column Clamping means for clamping and enclosing by the clamp member of the above, whereby the tightening of the clamping means is released and the steering shaft is moved in the axial direction to adjust the telescopic position of the steering shaft. Can be.

According to a second aspect of the present invention, there is provided a steering apparatus for a vehicle according to the first aspect, wherein the outer column is rotatably supported by a vehicle body. The tilt position of the steering shaft can be adjusted when the fastening means is released.

According to a third aspect of the present invention, there is provided a steering apparatus for a vehicle, comprising: an inner column rotatably supporting one end of a steering shaft; An outer column rotatably supported on the other end side and slidably fitted with the inner column, and rotatably supported on the vehicle body side; and an outer column formed integrally with the outer column, A pair of clamp members each having a holding surface for holding the column, and a pair of clamp members are moved so as to approach each other, and the inner column is tightened and held by the pair of clamp members. Means for adjusting the tilt position of the steering shaft by releasing the tightening of the tightening means. .

According to a fourth aspect of the present invention, there is provided a steering apparatus for a vehicle, comprising: an inner column rotatably supporting one end of a steering shaft; An outer column that rotatably supports the other end side and slidably fits the inner column, and a holding surface that is disposed on the outer periphery of the outer column and holds the outer column. A pair of clamp members,
Clamping means for moving the pair of clamp members so as to approach each other and directly clamping the outer column to the inner column with the pair of clamp members. The telescopic position of the steering shaft can be freely adjusted by releasing the fastening of the attaching means and moving the steering shaft in the axial direction.

As described above, in the vehicle steering apparatus according to the invention described in each claim of the present application, since the inner column is configured to be directly clamped by the outer column, a bending load is applied to the steering wheel. Even when actuated (i.e., when the steering wheel is twisted in the vertical direction), the inner column does not move so as to swing slightly, and the rigidity of both columns can be significantly increased.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tilt telescopic type vehicle steering system according to an embodiment of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a plan view of a tilt / telescopic type vehicle steering system according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the steering device shown in FIG. FIG. 3 is a cross-sectional view taken along line AA of FIG. FIG. 4 is a cross-sectional view taken along line BB of FIG. 5A is a plan view of the outer column on the lower side, FIG. 5B is a side view of the outer column, and FIG. 5C is a cross-sectional view taken along line CC of FIG. 5B. FIG. 4 is a cross-sectional view along a line.

As shown in FIGS. 1 and 2, the steering shaft comprises an upper shaft 1 which fixedly supports a steering wheel (not shown) at the rear end of the vehicle, and a lower shaft 2 which is spline-fitted to the upper shaft. The steering column is configured to be extendable and contractable. The steering column includes an upper inner column 3 that rotatably supports the upper shaft 1 via a ball bearing 31 at an upper end, and a lower shaft 2 via a ball bearing 33 at a lower end. And is slidably supported by a lower side outer column 4 fitted to the upper side inner column 3. The upper shaft 1 is provided with a C-ring 35 for preventing the upper shaft from getting into the inner column 3. The lower shaft 2 is also provided with a C-ring 35 for preventing the lower shaft 2 from getting into the outer column 4. A C-ring 37 is provided.

Around the outer column 4 on the lower side, as shown in FIGS.
Is provided. The bracket 6 has a flange portion 6a connected to the vehicle body on the rear side of the vehicle, and has a generally inverted U-shaped downward shape as a whole.
6c are integrally formed.

As shown in FIG. 4, on the lower side of the vehicle body side bracket 6, a separate lower bracket 7 is provided so as to surround the vehicle body side bracket 6. The lower bracket 7 is formed with downward facing side plate portions 7b and 7c for holding the upper plate portion 7a connected to the vehicle body and the facing side plate portions 6b and 6c of the bracket 6 in contact therewith. The cylindrical portion 8 is formed such that both ends slide in contact with the inside of the opposed side plate portions 6b and 6c of the bracket 6.
Are formed integrally with the front end of the outer column 4.
A tilt center bolt 10a is inserted through a spacer tube 9 between the opposed side plate portions 7b and 7c of the lower bracket 7, the opposed side plate portions 6b and 6c of the bracket 6, and the cylindrical portion 8. It is tightened. Thus, the lower outer column 4 can be tilted about the tilt center bolt 10a. As shown in FIG. 2, the lower bracket 7 has a tilt center bolt 1 at the time of the secondary collision collapse.
An opening slit 11 for detachment from which 0 is detached is formed.

The lower outer column 4 extends rearward to a position substantially covering the fitting portion between the upper shaft 1 and the lower shaft 2, and further extends over a certain length range behind the fitting portion. It has a jacket portion 4a integrally. An axial slit 1 is formed in the center of the upper portion of the outer jacket portion 4a, and a pair of clamp members 12a and 12b for holding and clamping the inner column 3 on the upper side are formed. Each of the clamp members 12 a and 12 b has an inner peripheral surface having a shape adapted to the outer peripheral surface of the inner column 3, and an outer surface that is in sliding contact with the inside of the vehicle body-side bracket 6. It is preferable that the inner peripheral surfaces of the clamp members 12a and 12b slide on the outer peripheral surface of the inner column 3 over 180 degrees in the circumferential direction. Further, as shown in FIG. 14, the sliding contact may be made from at least three directions in the circumferential direction. Clamp members 12a,
A tightening bolt 13 is inserted through 12b. A tightening nut 14 and a lock nut 15 are screwed into a screw portion of the tightening bolt 13.

On the head side of the tightening bolt 13, an operation lever 16 is mounted and a cam lock mechanism is provided. The cam lock mechanism includes a first cam member 17 that rotates integrally with the operation lever 16, and a shaft that engages with a peak or a valley of the first cam member 17 with the rotation of the first cam member 17. And a non-rotating second cam member 18 that moves in the direction to lock or unlock. Since the projection 17a of the first cam member 17 is fitted to the operation lever, the first cam member 17 is configured to be able to rotate integrally with the operation lever 16, and the second cam member 18 Projection 18a is tilt adjustment groove 5.
, The second cam member 18 is always configured to be non-rotating. The detachable capsule 19 at the time of the collapse of the secondary collision is provided on the flange portion 6a of the bracket 6.
a and 19b are provided. That is, the bracket 6 is connected to the vehicle body via the detaching capsules 19a and 19b.

With the above construction, at the time of a vehicle collision, the steering shaft assembly including the outer column 4, the inner column 3, the lower shaft 2 and the upper shaft 1 is moved together with the bracket 6 with respect to the lower bracket 7, Move forward.

When the operation lever 16 is swung in a predetermined direction to release the tilt / telescopic operation, the first cam member 1 is moved.
7 rotate simultaneously to engage the ridges and valleys of the second cam member 18, and the second cam member 18 moves to the left in FIG.
The fixing of the sliding contact of the vehicle body side bracket 6 to the outer column 4 is released.

Accordingly, in the case of tilt adjustment, the tightening bolt 13 is moved along the tilt adjusting groove 5, and the outer column 4 and the inner column 3 are tilted about the tilt center bolt 10, so that the steering wheel (Not shown) can be adjusted as desired.

In the case of telescopic adjustment, the upper inner column 3 is slid in the axial direction with respect to the lower outer column 4, and the axial position of the steering wheel (not shown) is adjusted as desired. Can be. In addition, a stopper bolt 43 is provided at a protruding portion on the lower side of the outer periphery of the outer column 4 in a radially inward direction. A long groove 3 having a predetermined length is formed in the inner column 3 so as to face the stopper bolt 43.
b is formed, and the stopper bolt 43 is
Are engaged with each other to form a telescopic position adjustment stopper and a rotation preventing member.

When the operation lever 16 is swung in the opposite direction during the tightening of the tilt and telescopic, the first cam member 17 is rotated.
Simultaneously rotate to engage the valley portion from the valley portion to the peak portion of the second cam member 18, the second cam member 18 moves rightward in FIG. 3, and the vehicle body side bracket 6 is Press column 4.

Thus, the pair of clamp members 1
2a and 12b are moved so as to be close to each other and clamped so as to hold the inner column 3 on the upper side. As described above, since the upper inner column 3 is directly clamped by the lower outer column 4, when a bending load is applied to a steering wheel (not shown) (that is, the steering wheel (Not shown), the upper side inner column 3 does not move so as to swing slightly, and the rigidity of both columns 3 and 4 can be significantly increased. it can.

Next, FIG. 6 shows a modification of the first embodiment. FIG. 6A is a cross-sectional view of a lower outer column according to the first embodiment, and FIG. 6B is a cross-sectional view of a lower outer column according to a modification of the first embodiment. FIG. 6C is a cross-sectional view illustrating the operation of the lower outer column according to the present modification.

As shown in FIG. 6A, in the first embodiment described above, a pair of clamp members 12a, 12b
When the "slit 1" is formed between the outer column 4 and the inner column 3, if the gap is too large and the gap between the outer column 4 and the inner column 3 is large, the pair of clamp members 12a and 12b are inclined at the time of clamping. There is a fear.

In order to cope with this, as shown in FIGS. 6B and 6C, a pair of projections 12c and 12d are formed at positions where a "slit" is formed between the pair of clamp members 12a and 12b, respectively. Is provided. Thus, at the time of clamping, the pair of projections 12c and 12d abut each other, so that the pair of clamp members 12a and 12b can be maintained in parallel, and a sufficient holding force can be obtained. In the second modified example of the first embodiment shown in FIG. 14, the inner circumference of the inner column 3 is in sliding contact with the clamp members 12a and 12b at three substantially equiangular positions on the inner circumference.
The outer column 4 has a slit l as shown in FIG.
It may be extended longer than before. The outer column 4 may be made of a casting, for example, an aluminum casting, a zinc casting, a magnesium-based casting, or an iron-based casting. (Second Embodiment) FIG. 7 is a plan view of a tilt / telescopic type vehicle steering system according to a second embodiment of the present invention. FIG. 8 is a longitudinal sectional view of the steering device shown in FIG. FIG. 9 is a cross-sectional view along the line DD in FIG. FIG. 10 is a cross-sectional view along the line EE in FIG.

The second embodiment differs from the above-described first embodiment in the method of departure at the time of a secondary collision, and all other configurations are the same except for the following configuration.

In the second embodiment, the bracket 6 has a vehicle rear flange portion 6a and a front flange portion 6d integrally, and the bracket 6 is fixed by these flange portions so that the bracket 6 cannot be disengaged even in the event of a collision with the vehicle body. Is maintained.

As shown in FIG. 8, a pair of clamp members 12a and 12b forming an outer jacket 4a integral with the outer column
An opening slit 20 for detachment is formed for detaching the tightening bolt 13 at the time of the secondary collision collapse.

On the side of the tilt center bolt 10, the first
Instead of the tubular portion of the embodiment, the outer column 4
The hook 8 is integrally formed, and a detaching open slit 21 for detaching the tilt center bolt 10 at the time of collapse of the secondary collision is formed behind the hook 8.

In the second embodiment, the outer column 4, the inner column 3, the lower shaft 2 and the upper shaft
Moves to the front of the vehicle. (Third Embodiment) FIG. 11 is a main part of a vertical sectional view of a tilt telescopic type vehicle steering system according to a third embodiment of the present invention. FIG. 12 is a cross-sectional view of FIG.
It is a cross-sectional view along the F line.

The lower outer column 4 in which the upper inner column 3 is slidably fitted is provided with an outer jacket integrally forming a pair of clamp members 12a and 12b on the rear side of the vehicle. In the present embodiment, the position where the clamp member clamps the inner column is below the lower outer column 4.

As shown in FIGS. 11 and 12, at the position on the vehicle rear side of the bracket 6 where the clamp member tightens the inner column, there is provided a reinforcement having a telescopic adjustment groove 25 in order to increase the holding force in the telescopic direction. A telescopic bracket 26 is provided. The telescopic bracket 26 is fixed to the inner column 3. Further, a reinforcing tilt bracket 24 having a tilt adjusting groove 23 is provided around the outer periphery of the bracket 6 in order to enhance the holding force at the time of tilt. The tilt bracket 24 is fixed to the bracket 6.

Also in the third embodiment, when adjusting the tilt / telescopic operation, when the operation lever 16 is swung in a predetermined direction, the first cam member 17 is simultaneously rotated, and the second cam member 18 is moved from the peak portion. The second cam member 18 moves to the left in FIG. 13 to engage with the valley, and the fastening of the vehicle body side bracket 6 to the outer column 4 is released.

Thus, in the case of tilt adjustment, the tightening bolt 13 is moved along the tilt adjusting groove 5 (and the tilt adjusting groove 23 of the reinforcing tilt bracket 24),
By tilting the outer column 4 and the inner column 3, the tilt angle of a steering wheel (not shown) can be adjusted as desired.

In the case of the telescopic adjustment, the telescopic adjustment groove 25 moves along the tightening bolt 13 and slides the upper inner column 3 together with the upper shaft 1 in the axial direction with respect to the lower outer column 4. By moving the steering wheel, the axial position of a steering wheel (not shown) can be adjusted as desired.

When the operation lever 16 is swung in the opposite direction during the tilt / telescopic tightening, the first cam member 17 is rotated.
Rotate at the same time to engage the valleys from the valleys of the second cam member 18, and the second cam member 18 moves to the right in FIG.
The vehicle body side bracket 6 presses the outer column 4 via the reinforcing tilt bracket 24 and the reinforcing telescopic bracket 26 by the tightening bolt 13.

Thus, the pair of clamp members 1
2a and 12b are moved so as to be close to each other and clamped so as to hold the inner column 3 on the upper side. As described above, since the upper inner column 3 is directly clamped by the lower outer column 4, even when a bending load is applied to the steering wheel (not shown), The inner column 3 on the upper side does not move so as to slightly swing, and the rigidity of both columns 3 and 4 can be significantly increased. (Fourth Embodiment) FIG. 13 is a longitudinal sectional view of a tilt / telescopic type vehicle steering system according to a fourth embodiment of the present invention.

In the fourth embodiment, an electric power steering device 27 is provided. In the present embodiment, the gear box 27a of the electric power steering device 27 is formed integrally with the outer column 4, and is swingably supported at the front end of the vehicle by a lower mounting bracket 28 on the vehicle body side by a tilt center pin 29. I have. Further, the first column is provided behind the outer column 4 integrated with the gear box 27a.
As in the embodiment, a pair of clamp members 12a and 12b (1
Outer jacket 4a forming only 2b) is integrally formed. Other configurations are the same as those of the above-described first to third embodiments.

Although the lower outer column 4 is formed integrally with the gear box of the electric power steering device 27, it may be formed separately.

Also in the fourth embodiment, the operation lever 1
6 is rotated in the tightening release direction, and the tightening of the clamp member to the inner column 3 is released, so that the telescopic adjustment and the tilt adjustment can be performed.

(Fifth Embodiment) FIG. 15 is a plan view of a tilt-telescopic type vehicle steering system according to a fifth embodiment of the present invention. FIG. 16 is a longitudinal sectional view of the steering device shown in FIG. FIG.
FIG. 17 is a transverse sectional view taken along line GG of FIG. 16. In the fifth embodiment, the same portions as those in the first embodiment will be denoted by the reference numerals only, or the description thereof will be omitted, and a configuration different from the first embodiment will be mainly described below.

In the fifth embodiment, the outer column 4 is separate from the clamp members 12a, 12b and the outer jacket 4a. Outer column 4 on the lower side
In the rear end portion, two slit portions L1 and L2 extending in the axial direction are formed so as to oppose each other in the radial direction at a portion fitted and overlapped with the front end portion of the upper side inner column.

Below the pair of clamp members 12a and 12b, an outer jacket portion 4a is formed which slides on the outer periphery of the rear end of the outer column 4 and integrates the clamp members 12a and 12b. These clamp members 1
The shapes and configurations of 2a, 12b and the outer jacket portion 4a are the same as those of the first embodiment except that they are separate from the outer column 4.

In the fifth embodiment, the outer jacket portion 4a in which the pair of clamp members 12a and 12b formed as described above is integrated is formed at the portion where the inner column 3 and the outer column 4 overlap with each other. The outer column 4 arranged on the outer periphery of the outer column 4 is directly fixed to the inner column 3 at a tilt adjustment position or a telescopic adjustment position. The configuration and operation of the fifth embodiment other than those described above are the same as those of the first embodiment. Further, the outer jacket 4a may be made of a casting, for example, an aluminum casting, a zinc casting, a magnesium-based casting, or an iron-based casting.

The present invention is not limited to the above-described embodiment, but can be variously modified.

[0050]

As described above, according to the present invention,
A pair of clamp members integral with or separate from the outer column are provided so as to surround the inner column or the outer column, and furthermore, the pair of clamp members are moved so as to be close to each other by a fastening means. The inner column or the outer column is clamped while being held by these pair of clamp members. Therefore, since the inner column is configured to be directly clamped to the outer column in this manner, the case where a bending load is applied to the steering wheel (that is, the case where the steering wheel is twisted in the vertical direction). However, the inner column does not slightly swing, and the rigidity of both columns can be significantly increased.

[Brief description of the drawings]

FIG. 1 is a plan view of a tilt-telescopic type vehicle steering device according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the steering device shown in FIG.

FIG. 3 is a transverse sectional view taken along line AA of FIG. 2;

FIG. 4 is a transverse sectional view taken along the line BB of FIG. 2;

FIG. 5 shows an outer column according to the first embodiment.
(A) is a plan view of the outer column on the lower side,
(B) is a side view of this outer column, (c)
FIG. 3B is a transverse sectional view taken along line CC of FIG.

6A is a cross-sectional view of a lower outer column according to the first embodiment, and FIG. 6B is a cross-sectional view of a lower outer column according to a modification of the first embodiment. (C) is a cross-sectional view showing the operation of the lower outer column according to the present modification.

FIG. 7 is a plan view of a tilt / telescopic vehicle steering device according to a second embodiment of the present invention.

8 is a vertical sectional view of the steering device shown in FIG.

FIG. 9 is a transverse sectional view taken along line DD of FIG. 8;

FIG. 10 is a transverse sectional view taken along line EE of FIG. 8;

FIG. 11 is an essential part of a vertical sectional view of a tilt / telescopic type vehicle steering system according to a third embodiment of the present invention.

FIG. 12 is a transverse sectional view taken along line FF of FIG. 11;

FIG. 13 is a longitudinal sectional view of a tilt / telescopic type vehicle steering device according to a fourth embodiment of the present invention.

FIG. 14 is a sectional view similar to FIG. 3 according to a second modification of the first embodiment of the present invention.

FIG. 15 is a plan view of a tilt-telescopic vehicle steering device according to a fifth embodiment of the present invention.

16 is a longitudinal sectional view of the steering device shown in FIG.

FIG. 17 is a transverse sectional view taken along the line GG of FIG. 16;

18A is a plan view of an outer column on a lower side, and FIG. 18B is a side view of the outer column in a third modified example of the first embodiment of the present invention. FIG. 4C is a cross-sectional view taken along line CC of FIG.

[Description of Signs] 1 Upper shaft 2 Lower shaft 3 Upper side inner column 4 Lower side outer column 5 Tilt adjusting groove 6 Bracket 7 Lower bracket 8 Cylindrical part 9 Spacer 10 Tilt center pin 11 Release slit 12 Clamp Member 13 Tightening Bolt (Tightening Means) 14 Tightening Nut 15 Lock Nut 16 Operating Lever 17 First Cam Member 18 Second Cam Member 19 Capturing Capsule 20, 21 Detachment Open Slit 23 Tilt Adjustment Groove 24 Reinforcement Tilt Bracket 25 Telescopic adjustment groove 26 Telescopic bracket for reinforcement 27 Electric power steering device 28 Lower bracket 29 Tilt center pin 31, 33 Ball bearing 35, 37 C-ring 43 Stopper bolt

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Katsumi Saito 1-8-1, Sojacho, Maebashi-shi, Gunma F-term in Japan Seiko Co., Ltd. (Reference) 3D030 DD02 DD19 DD26 DD65 DD76

Claims (5)

[Claims] 1. An inner column rotatably supporting one end of a steering shaft, and rotatably supporting the other end of the steering shaft, and slidably fitting the inner column. A pair of clamp members formed integrally with the outer column and each having a holding surface for holding the inner column; and moving the pair of clamp members so as to approach each other. Tightening means for tightening and enclosing the inner column with the pair of clamp members, and then releasing the tightening of the tightening means and moving the steering shaft in the axial direction, thereby telescopically moving the steering shaft. A steering device for a vehicle, wherein the position is adjustable. 2. The system according to claim 1, wherein the outer column is rotatably supported by the vehicle body, and the tilt position of the steering shaft is adjustable when the tightening means is released. The vehicle steering device according to any one of the preceding claims. 3. An inner column rotatably supporting one end of the steering shaft, and rotatably supporting the other end of the steering shaft, and slidably fitting the inner column. An outer column rotatably supported on the vehicle body side; a pair of clamp members formed integrally with the outer column and each having a holding surface for holding the inner column; and a pair of clamp members. To move the inner column closer to each other, and to tighten and enclose the inner column by the pair of clamp members. A steering device for a vehicle, wherein a tilt position is adjustable. 4. An inner column rotatably supporting one end of the steering shaft, and rotatably supporting the other end of the steering shaft, and slidably fitting the inner column. A pair of clamp members arranged on the outer periphery of the outer column and each having a holding surface for holding the outer column; and moving the pair of clamp members so as to approach each other. Tightening means for tightening and holding the outer column to the inner column directly by the pair of clamp members, and releasing the tightening means to move the steering shaft in the axial direction. Wherein the telescopic position of the steering shaft is adjustable. Place. 5. The system according to claim 4, wherein the outer column is rotatably supported by the vehicle body, and the tilt position of the steering shaft is adjustable when the tightening means is released. The vehicle steering device according to any one of the preceding claims.