JP3485682B2 - Shock absorbing steering device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing type steering device capable of adjusting a distance and a tilt angle of a steering wheel from a driver, and further capable of absorbing a shock acting on the driver during a vehicle collision. .

[0002]

2. Description of the Related Art A steering column mounted on a vehicle body and a steering shaft rotatably supported by the steering column are mounted with a steering wheel on the steering shaft. A steering device in which and are adjustable has been conventionally used (see JP-A-61-67663).

Further, as a steering device which absorbs a shock acting on a driver that collides with a steering wheel, a bracket for mounting a steering column on the vehicle body side absorbs the shock by plastically deforming the bracket, or is divided into two parts. 2. Description of the Related Art Conventionally, a shock absorber is conventionally absorbed by moving a steering column or a steering shaft relative to each other by the impact and suppressing the relative movement by friction or plastic deformation of a component member of the apparatus.

[0004]

In the conventional steering device, in order to adjust the distance of the steering wheel from the driver, the steering shaft is divided into two, and one of the two divided parts is axially moved to the other through serration. It is inserted as much as possible, and the amount of protrusion of the steering shaft from the steering column is changed by its axial movement. However, when the amount of protrusion of the steering shaft from the steering column becomes large, the steering shaft is easily bent. Therefore, the axial movement distance is limited, and the distance between the steering wheel and the driver may not be adjusted sufficiently large.

In the shock absorbing steering device, the shock is absorbed while the steering column and the steering shaft are axially displaced, and the impact energy proportional to the axial displacement is absorbed. Therefore, in order to sufficiently absorb the impact, it is necessary to sufficiently lengthen the axially displaceable distance of the steering column and the steering shaft. However, in order to adjust the distance of the steering wheel from the driver, if the structure is such that the two-divided steering shafts are moved relative to each other in the axial direction, the axial dimensions of the steering shaft and the steering column are increased by the amount of overlap of the two-divided steering shafts. become longer. Therefore, in a vehicle with a limited space, the axially displaceable distance between the steering column and the steering shaft becomes short, and many shock absorbing mechanisms are required to sufficiently absorb the shock, which complicates the configuration. .

Further, in the conventional steering device, in order to adjust the tilt angle of the steering wheel, the steering shaft and the steering column are attached to the vehicle body side through the tilt angle adjusting means. for that reason,
Even if the distance between the steering wheel and the driver is adjusted by changing the protrusion amount of the steering shaft from the steering column, the distance between the tilt angle adjusting means and the driver cannot be adjusted. The operability of the tilt angle adjusting means may be deteriorated.

An object of the present invention is to provide a shock absorbing steering device which can solve the above problems.

[0008]

SUMMARY OF THE INVENTION A shock absorbing steering system according to the present invention includes a guide member attached to the vehicle body, a slider movably supported by the guide member, a slider position adjusting means, and a slider. A steering column attached to the slider and a steering shaft rotatably supported by the steering column are provided, a steering wheel is attached to the steering shaft, and means for absorbing an impact acting on a driver colliding with the steering wheel is provided. It is characterized by being provided.

The slider of the present invention is
When actuated, the connection with the vehicle body side is released and the guide part
It is movable with respect to the material and absorbs the impact by suppressing the movement of the slider with respect to the guide member.
It For example, a shock absorbing member held by a guide member is provided between the slider and the vehicle body side, and the shock absorbing member is plastically deformed or elastically deformed by the slider that moves by shock. Further, means for applying a frictional force that suppresses the movement of the slider due to the impact is provided between the slider and the guide member. The frictional force is
For example, the coefficient of friction of at least one of the contact surfaces of the slider and the guide member at the time of impact is increased, the sleeve press-fitted into the guide member is moved along with the slider at the time of impact, or the slider is impacted on the guide member. It can be given by pressing in sometimes.

The position adjusting means has an actuator for driving the slider with respect to the vehicle body along the guide member, and means for releasing the connection between the slider and the vehicle body side via the actuator by impact is provided. preferable. For example, a member that connects the actuator and the vehicle body or a member that connects the actuator and the slider is broken by the action of impact.

It is preferable that the steering column is attached to a slider via a steering wheel tilt angle adjusting means, and the tilt angle adjusting means is movable along with the slider. Furthermore, the slider
Position adjusting means is a motor and it is rotated by this motor.
The driven nut and the axial movement due to the rotation of this nut
The slider having a moving screw shaft,
Is driven by the rotation of the nut driven by the motor
By moving along with the screw shaft that moves in the direction
The position is adjusted to adjust the tilt angle of the steering wheel.
The joint means is a steering column for the slider.
It is preferable to adjust the tilt angle by swinging the
Good

[0012]

According to the present invention, since the steering column and the steering shaft move in accordance with the movement of the slider, the amount of protrusion of the steering shaft from the steering column does not change, and the steering wheel from the driver does not change. You can adjust the distance.
As a result, the distance between the steering wheel and the driver can be adjusted sufficiently large.

Further, since the steering column and the steering shaft are moved in accordance with the movement of the slider to adjust the distance of the steering wheel from the driver, it is not necessary to lengthen the axial dimensions of the steering shaft and the steering column. . This allows
It is possible to reduce the restriction on the axial displacement of the steering column and the steering shaft when absorbing the shock acting on the driver, and sufficiently absorb the shock with a simple configuration.

By absorbing the impact by suppressing the movement of the slider with respect to the guide member,
It is not necessary to provide a dedicated structure for axially displacing the steering column or steering shaft to absorb the shock. This makes it possible to absorb the shock with a simple structure.

When position adjustment is performed by driving the slider with respect to the vehicle body by an actuator, the slider is prevented from moving when the impact is applied by releasing the connection between the slider and the vehicle body side through the actuator by the impact. Can be prevented. This makes it possible to smoothly absorb the shock by suppressing the movement of the slider.

Further, the steering column is attached to the slider through the adjusting means for adjusting the tilt angle of the steering wheel, and the adjusting means for the tilt angle is movable together with the slider, so that the slider can be moved. At the same time as adjusting the distance between the steering wheel and the driver, the distance between the driver for adjusting the tilt angle and the driver can be adjusted. As a result, it is possible to prevent the operability of the tilt angle adjusting means from being degraded.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

The steering system 1 shown in FIGS.
A pair of cylindrical guide rails (guide members) 3 attached to the vehicle body side via a base 2 are provided. The base 2 is attached to the vehicle body by bolts (not shown). Each guide rail 3 is fixed to the base 2 by fixing tools 4 attached to both ends of the guide rail 3 via bolts.

A slider 5 is movably supported by both guide rails 3, a steering column 6 is attached to the slider 5, and a steering wheel 8 is attached to a steering shaft 7 rotatably supported by the steering column 6.

As shown in FIG. 4, the slider 5 has a pair of through holes 5a spaced apart from each other in the left-right direction of the vehicle body,
Each guide rail 3 is inserted into each through hole 5a through a plurality of bushes 5b so as to be relatively movable. Further, the slider 5 has a pair of notches 5c communicating from the outside to the respective through holes 5a, and a plurality of bolts 5d with an adhesive material crossing the notches 5c are screwed. By adjusting the screwing amount of each bolt 5d, each guide rail 3 and each bush 5b
Since the gap between the slider 5 and the gap between each bush 5b and each through hole 5a can be adjusted, rattling of the slider 5 can be eliminated.

A position adjusting mechanism 11 for the slider 5 is provided. As shown in FIG. 3, the position adjusting mechanism 11 includes a motor bracket 14 attached to the base 2 via the arm 12 between the guide rails 3,
The motor bracket 14 includes a DC motor 15 with a reduction mechanism, a nut (not shown) rotationally driven by the motor 15, and a screw shaft 17 that meshes with the nut. As shown in FIG. 2, the screw shaft 17 is connected to the slider 5 by a bolt 18. The rotation of the motor 15 causes the screw shaft 17 to move in the axial direction, whereby the position of the slider 5 that moves along with the screw shaft 17 is adjusted.

The steering column 6 includes two members 6
The slider 5 is formed by connecting a and 6b.
Is attached to the steering wheel 8 via a tilt angle adjusting mechanism 21. The tilt angle adjusting mechanism 21 is mounted between the guide rails 3 so as to be integrated with the slider 5, and is attached to the support member 22 so as to be swingable around a bolt / rotating shaft 23 extending in the left-right direction of the vehicle body. The swinging member 24 is provided and is movable together with the slider 5. The swinging member 24 has a pair of side walls 24a facing both left and right sides of the support member 22, and a connecting wall 24b connecting the both side walls 24a and extending along the outer periphery of the steering column 6. The connecting wall 24b is integrated with the outer periphery of the steering column 6 by welding or the like.

The supporting member 22 is, as shown in FIG.
The vehicle body has side walls 22a which are spaced apart from each other on the left and right sides of the vehicle body, and the shaft 25 is inserted through elongated holes 22a 'formed in both side walls 22a. The longitudinal direction of the elongated hole 22a 'is along an arc centered on the rotary shaft 23 of the swing member 24. The operating lever 30 is provided at one end of the shaft 25.
Are integrated. Both side walls 22a of the support member 22
Is located between both side walls 24a of the swing member 24, and its shaft 25 is supported by both side walls 24a of the swing member 24 so as to be rotatable and immovable in the radial direction. Further, the shaft 25 has a plurality of washers 2 that sandwich the side walls 22a and 24a.
6, and mesh-shaped irregularities are formed on the surface of each washer 26 facing the side walls 22a, 24a. A spacer 27 that covers the shaft 25 is disposed between both side walls 22 a of the support member 22. On both ends of the shaft 25, male screws 25a and 25b having opposite thread winding directions are formed, and nuts 27a and 27b are screwed onto the male screws 25a and 25b. It is a screw. Each nut 27
Collar 28 is integrated with a and 27b by welding or the like, and as shown in FIG. 1, the outer circumference of each collar 28 is non-circular,
Detents 2 integrated with each side wall 24a of the rocking member 24
Abut on 9. A compression coil spring 31 is attached to the support member 22 and the steering column 6, and exerts an elastic force so that the swing member 24 swings in the direction of arrow A in FIG.

The shaft 25 is operated by the operating lever 30.
When the nut is rotated in one direction, the nuts 27a and 27b come close to each other and sandwich the side walls 24a and 24b of the swing member 24 with the spacer 27, so that the swing member 24 is prevented from swinging with respect to the support member 22. be able to. When the shaft 25 is rotated in the other direction by the operation lever 30, both nuts 27a and 27b are separated from each other, so that the rocking member 24 is allowed to rock with respect to the support member 22, and the tilt angle of the steering wheel 8 is adjusted. be able to.
In addition, the swing member 24 is swung with respect to the support member 22,
When adjusting the tilt angle of the steering wheel 8, the shaft 25 is displaced together with the swing member 24. Therefore, the relative position of the operation lever 30 with respect to the steering wheel 8 can be made constant regardless of the inclination angle of the steering wheel 8, and the operability can be improved.

A restricting member 32 for restricting the rotation of the shaft 25 in the other direction by the operating lever 30 by contacting the operating lever 30 as shown by a phantom line in FIG.
Is attached to the swing member 24 as shown in FIGS. By restricting the swing range of the operating lever 30 by the restricting member 32, the interference between the cover panel 34 in the driver's cab and the operating lever 30 shown by a virtual line in FIG. 1 is prevented.

Further, when the distance between the steering wheel 8 and the driver becomes large, the operation lever 30 is provided so that the tilt angle of the steering wheel 8 cannot be adjusted.
A lock mechanism that prevents the swinging of the
0 from interfering with the cover panel 34 and the driver's knees. That is, the lock mechanism has the blocking member 62 fixed to the base 2 and the contact portion 63 attached to the operation lever 30. The blocking member 62
When the distance between the steering wheel 8 and the driver becomes larger than a preset distance, the contact with the contact portion 63 prevents the operation lever 30 from swinging.

As shown in FIG. 1, the steering shaft 7 is mounted on the steering column 6 with bearings 40, 4.
1 is rotatably supported, a steering wheel 8 is connected to one end, and a cylindrical joint piece 4 is connected to the other end.
Two are connected. A pulley 43 is attached to a shaft (not shown) connected to the joint piece 42 as shown by an imaginary line in FIG. 3, and the rotation of the steering wheel 8 is steered via a cable 44 wound around the pulley 43. Transmitted to the wheels. A timing pulley 45 is attached to the outer periphery of the joint piece 42, and a timing pulley 48 is attached to the input shaft of a potentiometer 47 attached via a bracket 46 to the outer periphery of the steering column 6 as shown in FIG. A timing belt 49 is wound around the pulleys 45 and 48. This enables the potentiometer 47 to output a signal according to the steering angle of the steering wheel 8, and the signal is used for controlling the vehicle according to the steering angle.

As shown in FIG. 2, a pair of normally closed limit switches 50 and 51 are attached to the base 2, and a dog 52 is attached to the slider 5 between the limit switches 50 and 51. The dog 52 turns off one extension end detection limit switch 50 when the steering wheel 8 is closest to the driver, and turns off the other reduction end detection limit switch 51 when the steering wheel 8 is farthest from the driver. Turn off. Further, a normally open extension operation switch and a reduction operation switch, which will be described later, are attached to a bracket 53 attached to the outer periphery of the steering column 6 as shown by an imaginary line in FIG. Further, a normally closed lever detection limit switch 54 is attached to the base 2 as shown by a phantom line in FIG.
Is turned off by the operation lever 30 in a state where the swing member 24 is allowed to swing with respect to the support member 22.

FIG. 6 shows a drive circuit diagram of the motor 15, which includes the motor 15, the extension end detection limit switch 50, the extension operation switch 55, the lever detection limit switch 54, and the DC power supply 56. A forward rotation drive circuit is configured, and the motor 15, the reduction end detection limit switch 51, the reduction operation switch 57, the lever detection limit switch 54, and the DC power supply 56 configure a reverse rotation drive circuit. As a result, when the extension operation switch 55 is turned on, the steering wheel 8 approaches the driver due to the axial movement of the screw shaft 17 due to the forward rotation of the motor 15, and the extension end detection limit switch 50 is turned off when the steering wheel 8 comes closest to the driver. 15 stops. Further, when the reduction operation switch 57 is turned on, the steering wheel 8 separates from the driver due to the axial movement of the screw shaft 17 due to the reverse rotation of the motor 15, and at the farthest position, the reduction end detection limit switch 51 is turned off and the motor 15 turns off. Stop. Further, during adjustment of the tilt angle of the steering wheel 8, the lever detection limit switch 54 is turned off by the operation lever 30,
The motor 15 is never driven.

By restraining the movement of the slider 5 with respect to the guide rail 3, it is possible to absorb the impact acting on the driver colliding with the steering wheel 8. That is, as shown in FIG. 2, the impact absorbing member 70 is provided on each guide rail 3 between the fixing tool 4 for fixing the end of the guide rail 3 on the side away from the steering wheel 8 to the base 2 and the slider 5. A tubular member made of metal is fitted so as to be movable in the axial direction. The axial dimension of each impact absorbing member 70 is set to be equal to or less than the distance between the slider 5 and the fixture 4 which are arranged at the position farthest from the steering wheel 8 by the position adjusting mechanism 11.

As shown in FIG. 3, the arm 12 for mounting the motor bracket 14 on the base 2 includes a first member 12a mounted on the base 2 by a bolt and a second member 12a mounted on the motor bracket 14 by a bolt.
And a member 12b. The first and second members 12a, 1
The synthetic resin material 71 filled in the plurality of through holes 12a 'and 12b' penetrating the 2b allows the first member 12a and the second member
It is connected to the member 12b.

As a result, when a driver collides with the steering wheel 8 and an impact is applied, the synthetic resin material 71 is sheared, the connection between the slider 5 and the vehicle body side is released, and the synthetic resin material 71 is sheared. The shock is absorbed by. By releasing the connection between the slider 5 and the vehicle body side, it is possible to prevent the movement of the slider 5 from being blocked when a shock is applied. Therefore, the impact acting on the driver causes the slider 5 to move further away from the steering wheel 8 than the position farthest from the steering wheel 8 that can be positioned by the position adjusting mechanism 11. By this movement, the slider 5 sandwiches the shock absorbing member 70 with the fixture 4, and the shock absorbing member 70 is plastically deformed as shown in FIG. 7. The shock is absorbed by the plastic deformation of the shock absorbing member 70.
FIG. 8 shows the relationship between the impact acting on the driver and the time elapsed from the impact point of impact. The broken line in the figure shows the relationship when the impact absorbing means is not provided, and the solid line in the figure shows the impact absorbing means. The relationship in the case of providing is shown. That is, with the above configuration, the impact acting on the driver can be reduced.

According to the above construction, the screw shaft 1
Since the slider 5 and the steering column 6 move with the movement of 7, the distance of the steering wheel 8 from the driver can be adjusted without changing the amount of protrusion of the steering shaft 7 from the steering column 6.
As a result, the distance between the steering wheel 8 and the driver can be adjusted sufficiently large. For example, the amount of adjustment was about 50 mm in the past, but 100 mm
The above can be done. Further, the slider 5 and the tilt angle adjusting mechanism 21 of the steering wheel 8 move together, so that the slider 5 is moved to adjust the distance between the steering wheel 8 and the driver, and at the same time, the tilt angle adjusting mechanism. You can also adjust the distance between 21 and the driver. This can prevent the operability of the tilt angle adjusting mechanism 21 from being degraded.

Further, by moving the steering column 6 and the steering shaft 7 as the slider 5 moves, the axial dimension of the steering shaft 7 and the steering column 6 is adjusted in order to adjust the distance of the steering wheel 8 from the driver. Need not be long. As a result, when absorbing the impact that acts on the driver,
The restriction on the axial displacement of the steering column 6 and the steering shaft 7 can be reduced, and the impact can be sufficiently absorbed with a simple configuration.

In the above embodiment, the shock absorbing member 70 is simply fitted to the guide rail 3 without providing a structure for axially displacing the steering column 6 and the steering shaft 7 for absorbing the shock. With such a structure, the movement of the slider 5 with respect to the guide rail 3 is suppressed to absorb the shock. Furthermore, the motor 1 between the slider 5 and the vehicle body side is impacted by the impact acting on the driver.
By releasing the connection via 5, the movement of the slider 5 is prevented from being blocked when a shock is applied, and the shock is smoothly absorbed by suppressing the movement of the slider 5.

FIG. 9 shows a first modification. The difference from the above-described embodiment is that, instead of the shock absorbing member 70 formed of a metal tubular member, a compression coil spring is fitted to the guide rail 3 as a shock absorbing member 75, and the shock absorbing member 75 is fitted.
The point is that the slider is elastically deformed by the slider 5 which is moved by an impact. The shock is absorbed by the elastic deformation of the shock absorbing member 75.

FIG. 10 shows a second modification. The difference from the above embodiment is that the position adjusting mechanism 1 is replaced with the shock absorbing member 70.
1, the outer circumference of the guide rail 3 having a circular cross section is arranged between the slider 5 arranged at the farthest position from the steering wheel 8 and the fixture 4 on the side farther from the steering wheel 8, and the diameter of the guide rail 3 is smaller than that of the steering wheel 8. The point is a tapered surface 3'which gradually increases with distance. As a result, the slider 5 that moves due to the impact
Is press-fitted into the tapered surface 3'of the guide rail 3, and its movement is suppressed by the frictional force, and the shock is absorbed.

FIG. 11 shows a third modification. The difference from the above embodiment is that a hydraulic damper is connected to the guide rail 3 as the shock absorbing member 76 instead of the shock absorbing member 70 formed of a metal tubular member. That is, the concave portion 76 formed in the cylinder portion 76a of the hydraulic damper.
One end of the guide rail 3 is fitted into a'and the telescopic rod portion 76b of the hydraulic damper is fixed to the base 2. As a result, the hydraulic damper is pushed and contracted by the slider 5 that moves due to the impact, and the impact is absorbed.

12 (1) and 12 (2) show a fourth modification. The difference from the above embodiment is that instead of fitting the shock absorbing member 70 formed of a tubular member to the guide rail 3 so as to be movable in the axial direction, a shock absorbing member 77 formed of a tubular member is used. It is in the point that it was pressed into. As a result, as shown in (2) of FIG. 12, the movement of the slider 5 is suppressed by the frictional force between the guide rail 3 and the shock absorbing member 77 that moves along with the slider 5 that moves due to the impact, and the shock is generated. Be absorbed.

FIG. 13 shows a fifth modification. The difference from the above embodiment is that the position adjusting mechanism 1 is replaced with the shock absorbing member 70.
1, the outer circumference of the guide rail 3 having a circular cross section is surface-treated between the slider 5 arranged farthest from the steering wheel 8 and the fixture 4 on the side farther from the steering wheel 8 to increase the friction coefficient. The rough surface 3 ″ is present. As a result, the slider 5 that moves due to the impact is restrained from moving due to the frictional force between the slider 5 and the rough surface 3 ″, and the impact is absorbed.

The present invention is not limited to the above embodiments and modifications. For example, the guide member is not limited to the cylindrical guide rail 3, and the structure is not limited as long as the slider can be supported so as to be movable in the distance adjusting direction between the steering wheel and the driver. Further, the position adjusting means of the slider is not limited to the one using the motor 15, and a fluid pressure actuator may be used, for example. Also, the structure for adjusting the tilt angle of the steering wheel is not particularly limited as long as it can adjust the tilt angle of the steering wheel 8 and can move along with the slider. Further, the screw shaft 17 may be connected to the slider 5 via a synthetic resin member that is broken by an impact instead of the bolt 18, so that the connection between the slider 5 and the vehicle body side may be released. As the shock absorbing means, for example, the base 2 may be attached to the vehicle body side via a bracket, and the shock may be absorbed by plastically deforming the bracket by the impact. In this case, the slider and the vehicle body side actuator are used. It is not necessary to release the connection by impact. Further, the present invention may be applied to a steering gear and a steering wheel connected by a shaft.

[Brief description of drawings]

FIG. 1 is a side view of a shock absorbing steering device according to an embodiment of the present invention.

FIG. 2 is a front view of a shock absorbing steering device according to an embodiment of the present invention.

FIG. 3 is a plan view of a shock absorbing steering device according to an embodiment of the present invention.

FIG. 4 is a sectional view of a slider of the shock absorbing steering device according to the embodiment of the present invention.

FIG. 5 is a sectional view of a main portion of a tilt angle adjusting mechanism of the shock absorbing steering device according to the embodiment of the present invention.

FIG. 6 is a drive circuit diagram of the position adjusting mechanism of the shock absorbing steering system according to the embodiment of the invention.

FIG. 7 is a side sectional view showing a state at the time of shock absorption of a main part of the shock absorption type steering device according to the embodiment of the invention.

FIG. 8 is a diagram showing a relationship between an impact applied to a driver and an elapsed time from the impact application point.

FIG. 9 is a plan view of a main portion of a shock absorbing steering device according to a first modified example of the present invention.

FIG. 10 is a plan view of an essential part of a shock absorbing steering device according to a second modification of the present invention.

FIG. 11 is a plan view of a main portion of a shock absorbing steering device according to a third modified example of the invention.

FIG. 12 is a plan view before impact absorption, showing a main part (1) of the impact absorption type steering device of the fourth modified example of the invention.
(2) is a plan view after shock absorption

FIG. 13 is a plan view of a main part of a shock absorbing steering device according to a fifth modified example of the invention.

[Explanation of symbols]

3 guide rails 3'tapered surface 3 ″ rough surface 5 slider 6 steering column 7 Steering shaft 8 steering wheel 11 Position adjustment mechanism 15 motor 21 Tilt angle adjustment mechanism 70, 75, 76, 77 Shock absorbing member 71 Synthetic resin material

─────────────────────────────────────────────────── ─── Continuation of front page (72) Masatoshi Tanaka Masatoshi Tanaka 3000 No. Yamanoue, Ryuo-cho, Gamo-gun, Shiga Daihatsu Industry Co., Ltd. Shiga Technical Center (56) Bibliography 61-200773 (JP, U) Actual Kai 62-177575 (JP, U) Tokuheihei 4-501396 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B62D 1/00-1/28 B60R 21/05

Claims (4)

(57) [Claims] 1. A guide member attached to a vehicle body, a slider movably supported by the guide member, a position adjusting means for the slider, a steering column attached to the slider, and a steering column rotatable on the steering column. and a steering shaft which is supported on the steering wheel is mounted on the steering shaft, depending on the position adjustment of the slider due to the position adjusting means
Then, the steering column moves with the slider.
Is intended to dynamic, the means for absorbing the impact applied to the driver hitting the steering wheel is provided, the slider relative to the guide member by the its impact acts connected with the vehicle body side is released An impact absorbing steering device, which is movable and absorbs the impact by suppressing movement of a slider with respect to the guide member. 2. The position adjusting means has an actuator for driving the slider with respect to the vehicle body along a guide member, and means for releasing the connection between the slider and the vehicle body side via the actuator by impact. Claim 1
The shock absorbing steering device according to item 1. 3. The steering according to claim 1, wherein the steering column is attached to a slider through an adjusting means for adjusting a tilt angle of a steering wheel, and the adjusting means for the tilt angle is movable along with the slider. apparatus. 4. A guide member attached to the vehicle body side, a slider movably supported by the guide member, a position adjusting means for the slider, a steering column attached to the slider, and a rotatable steering column. and a steering shaft which is supported, that the steering shaft steering wheel is mounted, the position adjusting means, the guide portion the slider to the vehicle body
It has an actuator that drives along the material, and the impact that acts on the driver that collides with the steering wheel is actuated between the slider and the vehicle body.
Means for absorbing is provided by releasing by impact of coupling through data, the steering column is attached via a regulating means inclination angle of the steering wheel in the slider, adjusting means of the inclination angle slider and accompany movable The position adjusting means of the slider includes a motor, a nut that is rotationally driven by the motor, and a screw shaft that axially moves due to the rotation of the nut, and the slider is driven by the motor. The position of the steering wheel is adjusted by moving along with the screw shaft that moves in the axial direction by the rotation of the nut, and the adjusting means for adjusting the tilt angle of the steering wheel adjusts the tilt angle by swinging the steering column around the shaft with respect to the slider. A steering device characterized by being adjusted.