JP2001171527A - Tilt steering device attached with electrical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tilt steering device with improved structure for attaching electrical equipment so as to efficiently ensure the durability of electrical equipment attached to a steering column thereof. SOLUTION: A shock absorbing member is arranged at an abutting part between a rear steering column 26 and a supporting brocket 22, the abutting part regulating a rocking end of the rear steering column 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt steering device for a motor vehicle, and more particularly to a tilt steering device with an improved electrical component, which can be advantageously mounted on a steering column or a steering wheel. It is.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a steering device in which the height of a steering wheel can be adjusted in order to realize a driving position according to the physique and posture of a driver in an automobile. For example, Shokai 64
-10461, JP-A-1-127453,
JP-A-8-169349, JP-A-9-20778
No. 9 discloses a tilt type steering device having such a height adjusting function. In these tilt steering devices, generally, a front steering shaft is connected to a rear steering shaft via a universal joint, while a rear steering column covering the rear steering shaft is fixed to a vehicle body. As a result, through the joint center of the universal joint, it is swingably supported about a horizontal central axis orthogonal to the steering shaft, and the swing position of the rear steering column with respect to the support bracket is adjustable. It has a lock mechanism. Further, in such a conventional steering device, a contact portion is provided on the rear steering column and the support bracket, and the swinging end of the rear steering column is defined by the contact between the contact portions. It has become.

[0003] In recent years, as a method of designing the interior of a vehicle, or from the viewpoints of visibility and safety of instruments such as a speedometer and a tachometer of a vehicle, the conventional technology is to mount the device on an instrument panel of an automobile. It has been considered that the electrical system that had been used is mounted on a steering column or a steering wheel.

However, the present inventor has studied in detail how to mount such an electric system on a steering column or the like. However, the structure of the tilt steering apparatus disclosed in the above publications has a problem in mounting the electric system. I understand. That is, it has been newly found that when the electric system is directly mounted on a steering column, a steering wheel, or the like in the tilt steering device having the conventional structure, the durability of the electric system may be significantly reduced. .

The inventors of the present invention have made further studies and found that the influence of the operation of adjusting the height of the steering wheel or the like is large. That is, since the contact between the contact portions that define the swinging end is limited only when adjusting the height of the steering wheel, the swinging end of the rear steering column is defined simply by direct contact between the metal members. It was just However, when the electrical system is mounted on such a conventional tilt steering device, even if the metal members are in contact with each other at the time of height adjustment that occurs only occasionally, the electrical system is not affected by the impact at the time of the contact. It has been newly found that there is a possibility that an important adverse effect may be exerted on the electrical system, which may cause a problem in the electrical system. In particular, it was also found that there is a high probability of damage to instruments and lamps.

[0006]

The present invention has been made in view of the above-described circumstances, and a problem to be solved is to ensure the durability of the electrical system while ensuring the durability of the electrical system. To provide a tilt having a novel structure that can be mounted on a column with a simple structure.

[0007]

An embodiment of the present invention which has been made to solve such a problem will be described below. In addition, each aspect described below can be adopted in any combination as much as possible. In addition, aspects or technical features of the present invention are not limited to those described below, but can be recognized based on the description of the entire specification and the inventive idea described in the drawings.

According to a first aspect of the present invention, a rear steering shaft is connected to a steering shaft via a universal joint, and a rear steering column covering the rear steering shaft is fixed to a vehicle body. The bracket allows the universal joint to swing about a horizontal center axis perpendicular to the steering shaft through the joint center of the universal joint, and regulates the swing position of the rear steering column with respect to the bracket. In a tilt steering device provided with a lock mechanism, electrical components are mounted on the rear steering column side, and a cushion rubber is disposed at a contact portion between the rear steering column and the support bracket at a swing end of the rear steering column. That is the feature.

[0009] In the tilting device equipped with the electric component having the structure according to the first aspect, the rear steering column and the support bracket are abutted at their swinging ends in a buffered manner. Transmission of vibrations to the electrical system mounted on the steering column side at the time is reduced or avoided as much as possible, and the prevention of trouble in the electrical system can be advantageously achieved. Further, the tilt steering device of this aspect may be provided with a cushion rubber at a contact portion of the swing end in the tilt steering device of the conventional structure,
With an extremely simple structure, the electrical system can be arranged on the steering column, and the manufacturing is simple and the cost is advantageous. Furthermore, this aspect is applicable to any type of tilt steering device equipped with electrical components having any structure. Here, the shape, material, and the like of the cushion rubber are not particularly limited, and the shape of the contact portion,
It is appropriately determined in consideration of the arrangement space and, if necessary, an urging force for urging the steering column.

According to a second aspect of the present invention, there is provided a tilt steering apparatus equipped with an electric component having a structure according to the first aspect, wherein the electric component is an electrical instrument, and It is characterized by having.
Here, the electrical instruments are a speedometer, a water temperature meter,
Includes various electrically configured instruments such as fuel systems, tachometers, oil sound meters, and the like. Further, the lighting device includes any of a light bulb, a light emitting diode, a fluorescent display tube, and the like.

According to a third aspect of the present invention, there is provided a tilt steering apparatus equipped with an electrical component having a structure according to the first or second aspect, wherein the rear steering column and the support bracket are located on one side. A shaft member that is fixedly inserted and extends in parallel with the swing axis is inserted and arranged in a long hole extending in the swing direction formed on the other side,
The shaft member is displaced in the elongated hole with the swing, and the swing end of the rear steering column is defined by the contact of the shaft member with the end of the elongated hole. On the other hand, a buffer rubber sleeve is extrapolated and attached to at least a portion of the shaft member that is inserted into the elongated hole. In this embodiment, the cushioning rubber can be easily attached to the contact portion, and the impact caused by the contact between the shaft member and the long hole can be reliably and stably provided by the two swinging ends of the tilt mechanism. This can be reduced or eliminated. In addition, the buffer rubber sleeve may be any as long as it is provided at least at a portion where the shaft member is inserted into the long hole. For example, the cushion rubber sleeve may be provided over the entire length of the shaft member.

According to a fourth aspect of the present invention, there is provided a tilt steering apparatus equipped with an electrical component having a structure according to any one of the first to third aspects, wherein one of the rear steering column and the support bracket is provided. A shaft member that is inserted in a fixed position on the side and extends in parallel with the swing shaft,
The long hole extending in the swing direction formed on the other side is inserted and arranged so that the shaft member can be displaced in the long hole along with the swing, and the long hole of the shaft member can be displaced. The swinging end of the rear steering column is defined by abutting on the end, and a buffer rubber ring is inserted into the elongated hole through which the shaft member is inserted and mounted. . In this embodiment, the buffer rubber can be easily attached to the contact portion, and the buffer rubber is provided all around the peripheral portion of the long hole. Can be more reliably and stably reduced or eliminated.

According to a fifth aspect of the present invention, there is provided a tilt steering apparatus equipped with an electric component having a structure according to any one of the first to fourth aspects, wherein the first steering wheel is fixed to the rear steering column. And the second contact portion fixed to the support bracket is vertically spaced apart from each other vertically above or below the rear steering column, and is opposed to each other. By arranging a cushioning rubber on at least one side of the first steering contact and the first contacting portion and the second contacting portion contacting each other via the buffering member, the swing end of the rear steering comb is adjusted. The feature is that it is defined. In this aspect, since the first and second abutting portions are disposed vertically apart from the main portion of the tilt mechanism, the first and second abutting portions are arranged. The degree of freedom in designing the unit can be improved. Therefore, the opposing surfaces of the first and second contact portions can be set large, and the cushion rubber provided on those opposing surfaces can also be set large. Thereby, the shock absorbing characteristics at the time of contact by the cushioning rubber can be exhibited more advantageously.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described with reference to the drawings.
This will be described in detail.

First, FIGS. 1 to 3 show a tilt steering apparatus 10 as one embodiment of the present invention. The tilt steering device 10 includes a steering shaft 18 in which a front steering shaft 12 connected to a steering gear box (not shown) and a rear steering shaft 14 connected to a steering wheel (not shown) are connected by a universal joint (not shown);
It has a substantially cylindrical steering column 20 which is externally inserted into the steering shaft 18, and is supported and fixed to a vehicle body (not shown) by a support bracket 22 mounted on the outer peripheral surface of the steering column 20. Further, the steering column 20 includes a front steering column 24 that covers the front steering shaft 12.
And a rear steering column 26 covering the rear steering shaft 14, and the rear steering column 26 is horizontally extended by the support bracket 22 through the joint center of the universal joint and perpendicular to the front steering shaft. It is swingably supported around a swing axis (not shown) as a shaft.

Here, in the tilt steering device 10 of the present embodiment, although not shown, an electric instrument such as a speedometer, a tachometer, a fuel system or a water temperature gauge, or the like is provided on the rear steering column 26. And electrical components such as warning lights and the like.
Such instruments and warning lights are equipped with lighting devices such as light bulbs, light emitting diodes, fluorescent display tubes, and the like. Since the swing mechanism of the rear steering column 26 and the lock mechanism that regulates the swing position of the rear steering column 26 so as to be adjustable are not the gist of the present invention, the detailed description of the configuration is omitted. Any of various conventionally known mechanisms can be adopted.

FIG. 3 is a sectional view of a main part of the tilt steering apparatus 10. As shown in FIG. Here, the rear steering column 26 has a hollow straight cylindrical shape formed of a steel pipe or the like. The rear steering column 26 is fitted with a concave-groove-shaped connection fitting 25 from below.
Is welded to the outer peripheral surface of the rear steering column 26 so that the connecting bracket 25 projects downward from the rear steering column 26 and is suspended therefrom.
Is fixed. Then, both side wall portions 27 of the connecting bracket,
A contact shaft 28 as a shaft member extending in parallel with the swing shaft is inserted into through holes 29 formed in the contact shaft 27, and nuts 31, 3 are provided at both ends of the contact shaft.
1 is screwed and attached so that it cannot come out.

On the other hand, the support bracket 22 is positioned vertically above the rear steering column 26,
It has a first mounting seat 30 extending substantially horizontally, and is in front of the first mounting seat 30 (left side in FIG. 1).
The second mounting seats 34 and 36 that extend in a substantially vertical direction are integrally formed by bending the side edges downward on both sides of the rear steering column 26. Also,
Below the first mounting seat portion 30, there is provided a pair of vertical plate portions 32, 32 which extend vertically downward and are horizontally opposed to each other with the rear steering column 26 interposed therebetween. Are fixed to the mounting seats 34, 36 by welding.

A pair of vertical plates 32, 32 are slidably superimposed on the outer surfaces of both side walls 27, 27 of the connection fitting 25 fixed to the rear steering column 26. . Also, the vertical plate portion 3 of the support bracket 22
In the positions corresponding to the through holes 29 of the connection fitting 25, elongated holes 38, 38 extending in a circular arc in the swing direction around the swing axis are formed in the holes 2, 32.
The contact shaft 28 is provided so as to penetrate through the holes 8 and 38. When the rear steering column 26 swings, the contact shaft 28 is displaced in the long holes 38, 38, but the upper end in the vertical direction in the swing direction of the long holes 38, 38. The abutting shaft 28 abuts on the portion 38a and the lower end 38b in the vertical direction, so that both swinging ends of the rear steering column 26 are defined. That is, in the present embodiment, the upper and lower ends 3 of the contact shaft 28 and the long hole 38 are provided.
8a and 38b constitute a contact portion.

A coil spring 40 is disposed between the contact shaft 28 and the first mounting seat 38a. One end of the coil spring 40 is
2 while the other end is connected to a rear steering 26. The rear steering column 26 is supported by the support bracket 2 by the coil spring 40.
2 is elastically supported. That is, since the rear steering column 26 is biased vertically upward by the coil spring 40, when changing the swing position of the rear steering column 26, in other words, the height of the steering wheel When the adjustment is performed, by releasing the lock mechanism as described above, the rear steering column 26 is prevented from dropping abruptly to the lower swing end by the action of gravity, and When the steering column 26 is biased by the coil spring 40, the contact shaft 28
Is lifted up to the swinging end which comes into contact with the end 38a of the end portion.

In the tilt steering device 10 having the structure according to the present embodiment, as shown schematically in FIG. 4, a cushioning rubber mounted in an externally inserted state over substantially the entire length of the contact shaft 28 is used. Of the contact shaft 28 and both ends 38a of the elongated hole 38,
The contact with 38b can be made in a buffered manner. Here, the thickness, material, and the like of the cushion rubber sleeve 42 are not particularly limited, but a desired cushioning action is considered in consideration of the swing distance of the rear steering column 26, the urging force of the coil spring 40, and the like. It is set appropriately so as to obtain durability.

In the tilt steering apparatus 10 according to the present embodiment having the above-described structure, when the lock mechanism is released to adjust the height of the steering wheel, the rear steering column 26 is provided with the coil spring 40. The contact shaft 28 is swung about the swing axis vertically upward by the force, and the contact shaft 28 is elongated.
The swinging of the rear steering column 26 is stopped by abutting on the upper end 38a of the rear steering column 8. At this time, the contact between the contact shaft 28 and the upper end 38a of the elongated hole 38 can be buffered by the cushion rubber sleeve 42 externally mounted over the entire length of the contact shaft 28. As a result, shocks and vibrations caused by the contact can be advantageously reduced or avoided, and adverse effects on the electrical components mounted on the rear steering column 26 due to the vibrations can be reduced or avoided as much as possible. The durability of the system can be sufficiently ensured. In addition, the tilt steering device 10 of the present embodiment is configured using the members constituting the tilt mechanism well, and the contact shaft can be hardly changed to the tilt steering device having the conventional structure. Since it can be realized only by extrapolating the cushion rubber sleeve 42 to the, the manufacture is easy and the cost is advantageous. In addition, since the cushion rubber sleeve 42 can be easily arranged, the workability of maintenance such as replacement of the cushion rubber sleeve 42 can be advantageously improved.

Next, a tilt steering device 50 according to a second embodiment of the present invention is schematically shown in FIG. In the present embodiment, members and portions having the same structure as the first embodiment are denoted by the same reference numerals as those in the first embodiment in the drawings, and their detailed descriptions are given. Description is omitted.

That is, the tilt steering device 50 of the present embodiment is similar to the tilt steering device 50 except that the buffer rubber ring 52 is inserted in the elongated hole 38 penetrating the vertical plate portion 32 of the support bracket 22. The structure is the same as in the first embodiment.

In the tilt steering device 50 of this embodiment as well, in order to adjust the height of the steering wheel, the upper end 38a of the contact shaft 28 and the elongated hole 38 when the lock mechanism is released. Can be buffered by the cushion rubber ring 52 inserted in the peripheral portion of the long hole 38, and vibration or the like caused by such contact is advantageously reduced or avoided. The same effect as that of the embodiment can be achieved. Further, since the buffer rubber ring 52 is provided over the entire periphery of the long hole 38, non-buffer contact between the metal members can be reliably avoided, and vibration due to the contact can be reduced or reduced. Avoidance can be achieved more advantageously, and sufficient durability of the electrical components arranged on the rear steering column can be ensured. In addition, the tilt steering device 50 of the present embodiment is similar to the above-described embodiment in that the buffer rubber ring 52 is inserted and mounted in the long hole 38 with almost no design change to the conventional tilt steering device. Since it can be realized only by the method, it is easy to manufacture and is advantageous in cost. Also,
Workability of maintenance such as replacement of the cushion rubber ring 52 can be advantageously improved.

Next, a tilt steering device 60 according to a third embodiment of the present invention is schematically shown in FIG. Note that, also in the present embodiment, for members and parts having the same structure as in the first embodiment,
The same reference numerals as in the first embodiment denote the same in the drawings, and a detailed description thereof will be omitted.

In the tilt steering device 60 according to the third embodiment, a pair of vertical plate portions 32 provided on the support bracket 22 extend vertically downward, and each of the extending end portions is provided with a shaft. Stoppers 62, 62 as second contact portions, which are bent substantially inward at right angles in the right direction and are opposed to the bottom surface of the rear steering column 26 in the vertical direction, are provided respectively. . Then, buffer rubber mounting holes 64, 64 are provided for the stopper portions 62, 62, respectively, and a stopper rubber 66 as a buffer rubber is mounted to each mounting hole 64, and a first contact is made. Stopper portions 62, 62 so as to face the bottom surface of the rear steering column 26 as a portion.
It is projected from. In the present embodiment, the stopper portions 62, 62 and the bottom surface of the rear steering column 26 form a contact portion at one swing end (vertically downward). Therefore, the stopper portion 62 and the bottom surface of the rear steering column 26 are brought into contact with the buffer rubber 66 in a buffered manner.

The tilt steering device 60 of this embodiment having such a structure particularly adjusts the height of the steering wheel, so that when the lock mechanism is released, the weight of the operator is greatly applied to the steering wheel. In such a case, the rear steering column 26 is swung to the vertically lower swing end, and at the swing end,
The stopper portion 62 and the rear steering column 26 are abutted against each other via a stopper rubber 66 in a buffered manner, so that the vibration caused by the contact can be advantageously reduced or avoided, and the electrical components disposed on the rear steering column Can be sufficiently secured.

Further, since the location of the stopper rubber 66 is located at a position separated from the main parts of the tilt mechanism and the lock mechanism, the location of the stopper rubber 66 is further facilitated, and the work such as maintenance is performed. The properties can be more advantageously improved. Further, since the arrangement position of the stopper rubber 66 is newly provided, the arrangement space of the stopper rubber can be advantageously secured, and the arrangement area of the stopper rubber 66 can be further secured. It is possible to obtain a large shock absorbing characteristic of the stopper rubber 66 at the time of contact.

Next, a tilt steering device 70 according to a fourth embodiment of the present invention is schematically shown in FIG. Note that, also in the present embodiment, for members and parts having the same structure as in the first embodiment,
The same reference numerals as in the first embodiment denote the same in the drawings, and a detailed description thereof will be omitted.

That is, in the tilt steering device 70 of the present embodiment, a groove-shaped stopper metal fitting is provided vertically below the extended end portions of the pair of vertical plate portions 32 provided on the support bracket 22. 72 is integrally fixed, and a cushioning rubber mounting hole 74 is provided through the bottom surface of the rear steering column 26 which is vertically spaced away from the bottom surface of the stopper fitting 72 and is opposed to the bottom surface of the rear steering column 26. ing. Then, a stopper rubber 76 as a buffer rubber is mounted in the mounting hole 74, and the rear steering column 26
Are provided so as to protrude toward the bottom surface of the stopper fitting 72. In the present embodiment, the bottom surface of the stopper fitting 72 and the bottom surface of the rear steering column 26 constitute a contact portion at one swing end (downward in the vertical direction). Therefore, via the stopper rubber 76,
The bottom surface of the stopper fitting 72 and the rear steering column 26
Will be abutted in a cushioning manner.

As in the third embodiment, the tilt steering device 70 of this embodiment having the above structure has a bottom surface of the stopper metal fitting 72 and a bottom surface of the rear steering column 26 at the vertically swinging end of the rear steering column 26. However, the vibration of the contact can be advantageously reduced or avoided, and the adverse effect on the electrical components due to the vibration is reduced or avoided. Thus, the durability of the electrical components can be sufficiently ensured.

Also, in this embodiment, as in the third embodiment, the location of the stopper rubber 76 is located at a position separated from the main parts of the tilt mechanism and the lock mechanism. The arrangement of the stopper rubber 76 is further facilitated, the workability such as maintenance can be more advantageously improved, and the arrangement position of the stopper rubber 76 is newly provided, so that the arrangement space of the stopper rubber 76 is advantageously reduced. As a result, it is possible to secure a large area for disposing the stopper rubber 76, and the stopper rubber
6, it is possible to obtain a larger shock absorbing property.
Therefore, the durability of the electrical components mounted on the rear steering column 26 can be further advantageously improved.

Although the embodiments of the present invention have been described above in detail, these are merely examples, and the present invention is not to be construed as being limited by the specific description of the embodiments. .

For example, in the above-described embodiment, a specific example in which the present invention is applied to a tilt steering apparatus of a type that supports a rear steering column by using a coil spring in a pulling direction has been described, but the present invention is not limited to this. Instead, the present invention can be applied to a tilt steering device or the like that uses a coil spring in the compression direction to support the weight of the rear steering column.

In the present invention, the cushioning members provided at the contact portions between the rear steering column and the support bracket, which define the swinging ends of the rear steering column, need not necessarily be provided at both ends in the swinging direction. , May be arranged only on one side. Further, the shape, material, and the like of the cushioning member are not limited to those in the above-described embodiment, and are appropriately set in consideration of an installation space and the like so that a desired impact absorption specification can be exhibited.

The contact portion between the rear steering column and the support bracket that defines the swinging end of the rear steering column is not particularly limited, and constitutes a tilt mechanism as in the first and second embodiments. The contact portion may be configured by using a member, or, as in the third and fourth embodiments, a contact portion may be newly provided at a position separated from members constituting the tilt mechanism, the lock mechanism, and the like. Alternatively, it is also possible to improve the design independence of the cushioning member arranged there. Thereby, the size of the buffer member can be advantageously increased, and accordingly, the shock absorbing characteristics of the buffer member can be advantageously improved.

Further, the shapes of the rear steering column, the support bracket, the contact portion, and the like are not limited to those of the above-described embodiment, as long as the provision of cushioning rubber can be advantageously performed. , Any shape can be adopted. Further, in the above embodiment, both the rear steering column and the support bracket are formed of a steel material, but any material may be employed as long as it exhibits required durability characteristics. It is.

In addition, the buffer structures shown in the first to fourth embodiments can be employed in combination, whereby the contact portion that defines the swing end of the rear steering column can be changed. It is also possible to provide multiple places,
The durability of the tilt steering device can be improved, and the vibration at the time of contact is buffered by the plurality of buffer rubbers, so that the shock absorbing characteristics of the buffer rubber can be further improved,
Thus, the durability of the electrical components mounted on the rear steering column can be further improved.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, various changes, modifications, improvements, and the like can be made in embodiments, and any such embodiments do not depart from the gist of the present invention. It goes without saying that they fall within the scope of the present invention.

[0041]

As is apparent from the above description, in the tilt steering apparatus equipped with the electric component having the structure according to the present invention, the cushioning rubber is provided at the abutting portion at the swing end of the rear steering column and the support bracket. Is disposed, shocks and vibrations at the time of contact between the rear steering column and the support bracket at the swinging end can be reduced or avoided as much as possible by the cushioning rubber.
The mounting of electrical components on the rear steering column can advantageously be realized.

[Brief description of the drawings]

FIG. 1 is a side view showing an electric component mounted type tilt steering device as one embodiment of the present invention.

FIG. 2 is a plan view showing the tilt steering device shown in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a model diagram showing a main part of the tilt steering device shown in FIG. 1;

FIG. 5 is a view corresponding to FIG. 4 showing a tilt steering device equipped with electrical components as another embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 4 showing a tilt steering device equipped with electrical components as still another embodiment of the present invention.

FIG. 7 is a view corresponding to FIG. 4 showing a tilt steering device equipped with electrical components as still another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 tilt steering device 14 rear steering shaft 22 support bracket 26 rear steering column 28 contact shaft 38 long hole 42 buffer rubber sleeve 52 buffer rubber ring 66 stopper rubber 76 stopper rubber

Claims (5)

[Claims] 1. A rear steering shaft connected to a front steering shaft via a universal joint, and a rear steering column covering the rear steering shaft is connected to a joint of the universal joint by a support bracket fixed to a vehicle body. A tilt steering device having a lock mechanism for swingably supporting a central axis in a horizontal direction perpendicular to the steering shaft through a center and for adjusting a swing position of the rear steering column with respect to the bracket. The electronic component mounting device according to claim 1, wherein an electrical component is mounted on the rear steering column side, and a cushion rubber is disposed at a contact portion between the rear steering column and the support bracket at a swing end of the rear steering column. Type tilt steering device. 2. The electric component-mounted tilt steering device according to claim 1, wherein the electric component is an electric instrument and includes a lighting device. 3. A shaft member which is fixedly inserted through one side of the rear steering column and the support bracket and extends in parallel with the swing shaft, and a length extending in the swing direction formed on the other side. The shaft member is displaced in the elongated hole by swinging by being inserted through the hole, and the shaft member is brought into contact with the end of the elongated hole to swing the swinging end of the rear steering column. 3. The electronic equipment mounted type tilt steering device according to claim 1, wherein a shock absorbing rubber sleeve is extrapolated and mounted on at least a portion of the shaft member inserted into the elongated hole. 4. A shaft member, which is fixedly inserted through one side of the rear steering column and the support bracket and extends in parallel with the swing shaft, extends in a swing direction formed on the other side. The shaft member is displaced in the elongated hole by swinging by being inserted through the hole, and the shaft member is brought into contact with the end of the elongated hole to swing the swinging end of the rear steering column. 4. The electronic equipment mounted type tilt steering apparatus according to claim 1, wherein a shock absorbing rubber ring is inserted into the elongated hole through which the shaft member is inserted, while being fitted. 5. A first contact portion fixed to the rear steering column and a second contact portion fixed to the support bracket are vertically separated from or above the rear steering column. At the same time, the cushioning rubber is disposed on at least one side of the facing surface, and the first contact portion and the second contact portion are interposed through the cushioning member. 5. The tilt steering device according to claim 1, wherein the swinging end of the rear steering column is defined by contacting the tilting end.