JPH10310065A - Steering column device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a practical structure to displace a steering wheel forward for protecting a driver at the time of collision of a small-sized cab-over type automobile such as a mini-truck. SOLUTION: A locking bracket 6 is fixed on an intermediate part back surface of a steering column 1, and a locking notch 9 is provided at a back end edge of the locking bracket 6. A stopper bolt is supported on an upper bracket 10 to be fixed on a car body, and the stopper bolt is engaged with the locking notch 9. At the time of secondary collision, the stopper bolt is removed from the locking notch 9 to allow the steering column 1 and a steering wheel to be displaced forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The steering column device according to the present invention is mounted on a small vehicle having a relatively upright steering shaft, such as a small cab-over type vehicle such as a light truck, and is provided with a steering wheel at the time of a secondary collision. Is displaced forward so that a large impact is not applied to the driver's body.

[0002]

2. Description of the Related Art A cab-over type vehicle has a driver's seat above a front wheel, which is a steering wheel, so that a steering shaft and a steering shaft are rotated as compared with a general passenger car. The freely supported steering column is in an upright state. When such a cab-over type vehicle collides, the driver's body is subject to a secondary collision (when the driver collides with a part of the vehicle in a collision following a primary collision in which the vehicle collides with another object). Bumps into the steering wheel. Therefore, it is desired to retreat the steering wheel forward at the time of a secondary collision so that a large impact is not applied to the driver's body from the steering wheel in order to ensure the safety of the driver's life. For this reason,
For example, it has been considered that the steering wheel is displaced forward at the time of a secondary collision by the structure described in Japanese Utility Model Laid-Open No. 4-110672.

On the other hand, in the case of a small cab-over type vehicle such as a light truck, the installation space for the steering column is limited, the increase in weight is liable to affect the running performance, and the vehicle must be made lightweight. Prices are low,
Because the cost allowed for the steering column device is limited, it may be difficult to adopt the structure of the steering column device generally used conventionally, including the structure described in the above publication. In view of such circumstances, the steering column device of the present invention realizes a structure that is small, lightweight, and inexpensive, and can effectively displace the steering wheel in the event of a secondary collision to effectively protect the driver. It was invented.

[0004]

A steering column device according to the present invention has a cylindrical steering column for rotatably supporting a steering shaft inside, similarly to a generally known steering column device. When,
The vehicle includes a lower bracket that supports the lower portion of the steering column so as to be swingable with respect to the vehicle body, and an upper bracket that is coupled to the vehicle body and holds an intermediate portion of the steering column from both sides. In particular, in the steering column device of the present invention, the upper bracket detachably holds the middle portion of the steering column based on a forward impact load applied to the middle portion of the steering column. The more specific structure of such a steering column device of the present invention is as follows. It is also conceivable to add a configuration described later to enhance protection of the driver.

A locking bracket is fixed to a rear surface of an intermediate portion of the steering column, and a locking notch is formed in a rear end edge of the locking bracket, and a rod-shaped member supported in the upper bracket in a horizontal direction. Is locked in the locking notch. Normally, the rod-shaped member is engaged with the locking notch, and the intermediate portion of the steering column is supported on the vehicle body via the upper bracket, the rod-shaped member, and the locking bracket. . On the other hand, when a forward impact load is applied to the middle portion of the steering column at the time of the secondary collision, the rod is moved out of the locking notch so that the steering column moves forward. Allow displacement.

A locking bracket is fixed to a rear surface of an intermediate portion of the steering column, and a rod-shaped member is horizontally supported by the locking bracket. And
Portions of both ends of the rod-shaped member protruding from both end surfaces in the width direction of the locking bracket are fitted to rear ends of long through holes formed in the upper bracket in the front-rear direction. At normal times, both ends of the rod-shaped member are held at the rear ends of the through holes, and the middle portion of the steering column is mounted on the vehicle body, and the upper bracket, the rod-shaped member, and the locking bracket are connected to each other. To support through. On the other hand, when a forward impact load is applied to the intermediate portion of the steering column at the time of a secondary collision, the steering column is moved forward by displacing the rod-shaped member forward of the through hole. Allow displacement.

[0007] A restraining piece is formed on an inner side surface of a portion of the upper bracket that sandwiches the middle portion of the steering column from both the left and right sides, and the restraining piece restrains a front portion of the steering column toward the middle portion. And
Normally, an intermediate portion of the steering column is held by the upper bracket, and the intermediate portion of the steering column is supported on the vehicle body via the upper bracket. On the other hand, when a forward impact load is applied to the intermediate portion of the steering column at the time of the secondary collision, the steering column is allowed to be displaced forward while pushing the holding piece.

A groove is formed in a side surface of an intermediate portion of the steering column, and a through-hole is formed in a part of the upper bracket that matches the groove, and the groove is bridged between the groove and the hole. Fill with synthetic resin. And
Normally, the intermediate portion of the steering column is connected to the upper bracket via the synthetic resin, and the intermediate portion of the steering column is supported on the vehicle body via the upper bracket. On the other hand, when an impact load directed forward is applied to the middle portion of the steering column at the time of a secondary collision, by breaking the synthetic resin,
The steering column and the upper bracket are separated to allow the steering column to be displaced forward.

[0009] More preferably, an energy absorbing member is provided so as to bridge between an intermediate portion of the steering column and the upper bracket. The energy absorbing member is plastically deformed when the steering column is displaced forward during a secondary collision, and absorbs impact energy applied to the steering column.

[0010]

With the steering column apparatus of the present invention configured as described above, the steering column apparatus can be made small, lightweight and inexpensive, and can effectively protect the driver by displacing the steering wheel forward at the time of a secondary collision. .

[0011]

1 to 4 show a first embodiment of the present invention corresponding to the above. A steering shaft 2 (shown only in FIGS. 1 and 3; omitted in FIGS. 2 and 4) is rotatably supported by a pair of upper and lower bearings inside a steering column 1 formed entirely in a cylindrical shape. The steering wheel (not shown) is mounted on the steering column 1 at the upper end of the steering shaft 2.
To the protruding part above. The lower portion of the steering column 1 is supported by a lower bracket 3 so as to be swingable with respect to a vehicle body (not shown). This swing displacement is necessary for displacing the steering wheel forward at the time of a secondary collision. However, the swing angle is shown in FIG.
As shown by a solid line and a dashed line in FIG. 3, the elasticity or plastic deformation of a part of the metal plate constituting the lower bracket 3 can sufficiently cope with the problem. In the example shown in the figure, the lower bracket 3 is formed by bending a metal plate such as a steel plate into an L-shape to form a mounting plate portion 4 for mounting on a vehicle body.
And a holding plate portion 5 for holding the lower portion of the steering column 1. The lower portion of the steering column 1 is inserted into a circular hole (not shown) formed in the holding plate portion 5, and a part of the inner peripheral edge of the circular hole and the outer peripheral surface of the steering column 1 are welded. For this reason, the center of the swing displacement is in the vicinity of the connection between the mounting plate 4 and the holding plate 5.

On the other hand, the rear surface of the intermediate portion of the steering column 1 (FIGS. 1, 3, 5, 7, 9, 11, 13, 15, 17)
2, 4, 6, 8, 10, 12, 14, 1
The locking bracket 6 is fixed to the lower surfaces of the brackets 6 and 18 by welding. The locking bracket 6 is formed by bending a metal plate such as a steel plate into a substantially C-shape, and includes a pair of left and right side plate portions 7, 7 parallel to each other, and a rear end edge of the both side plate portions 7, 7. And a connecting plate portion 8 for connecting them. The width dimension of the locking bracket 6 in the left-right direction is larger than the outer diameter of the steering column 1. In a state where the locking bracket 6 is fixed to the rear surface of the intermediate portion of the steering column 1 by welding, the outer surfaces of the side plate portions 7, 7 are projected to the left and right sides from the outer peripheral surface of the steering column 1. I have. A locking notch 9 is formed at the rear end edge of such a locking bracket 6 so as to extend from the connecting plate 8 to the rear half of each of the side plates 7, 7.
The lower edge of the locking notch 9 is formed in an arc shape having the center of the swing displacement substantially as its center.

An upper bracket 10 is attached to a part of the vehicle body, such as a lower portion of a dashboard (not shown), with the locking bracket 6 sandwiched from both left and right sides. In the case of this example, the upper bracket 10 includes a pair of left and right bracket elements 11,11. Each of these bracket elements 11, 11 is formed by bending a metal plate such as a steel plate into an L-shape to form a mounting plate portion 12 for mounting on a vehicle body.
And a holding plate 13 for holding the locking bracket 6 from both left and right sides. In a state where the mounting plates 12, 12 of such a pair of bracket elements 11, 11 are mounted on the vehicle body, the pressing plates 13, 13 are located on both left and right sides of the locking bracket 6.

Further, through holes 14 and 14 are formed at the rear ends of the pressing plates 13 and 13 at positions aligned with the left and right ends of the locking notch 9, respectively. And
A push bolt 15 (shown only in FIGS. 2 and 4; not shown in FIGS. 1 and 3), which is a rod-shaped member, is inserted through the through holes 14 and 14 and the notch 9 in the horizontal direction. ing.
Then, one end (FIGS. 2 and 4)
A nut 16 is screwed into a portion protruding from the outer surface of the holding plate portion 13 (left side of FIG. 3), and further tightened. Therefore, the inner surfaces of the pressing plates 13, 13 strongly press the outer surfaces of the side plates 7, 7 of the locking bracket 6. Therefore, normally, the holding bolt 15 is present in the locking notch 9 and acts between the inner surface of each of the holding plate portions 13, 13 and the outer surface of each of the side plate portions 7, 7. An intermediate portion of the steering column 1 is supported on the vehicle body via the upper bracket 10, the holding bolt 15, and the locking bracket 6 based on frictional force.

On the other hand, when a forward impact load is applied to the intermediate portion of the steering column 1 at the time of a secondary collision, the inner surfaces of the pressing plates 13 and 13 and the side plates 7 and The intermediate portion of the steering column 1 is displaced forward against the frictional force acting between the steering column 1 and the outer surface of the steering column 1. At this time, the lower bracket 3 is deformed from the state shown by the dashed line in FIG. 3 to the state shown by the solid line in FIG. 3, and allows the steering column 1 to swing about the lower bracket 3. Further, as the intermediate portion of the steering column 1 is displaced forward, the holding bolt 15 comes out of the locking notch 9. As described above, the steering wheel is displaced forward along with displacing the intermediate portion of the steering column forward during a secondary collision,
A large impact is prevented from being applied to the driver's body hitting the steering wheel, and the driver is protected.

Next, FIGS. 5 and 6 show a second example of the embodiment of the present invention in which the above-described configuration is added to the above. The structure of the present embodiment provides enhanced protection of the driver in the event of a secondary collision by providing an energy absorbing member 17 between a pair of bracket elements 11 and 11 constituting the upper bracket 10 and an intermediate portion of the steering column 1. It is intended. In order to mount the energy absorbing member 17, the holding plate portion 13, which constitutes each of the bracket elements 11, 11,
A slit-shaped through hole 18 is formed in the front part of the steering column 1 and is long in the axial direction of the steering column 1. The energy absorbing member 17 is formed by bending a plastically deformable metal plate material such as a mild steel plate. The energy absorbing member 17 has a curved portion 19 at the center and L-shaped bent portions 2 at both ends.
0 and 20 respectively. Such an energy absorbing member 17 allows the bending portion 19 to be connected to the steering column 1.
1, 3, 5, 7, 9, 11, 13, 1
5, 17 upper left surface, FIGS. 2, 4, 6, 8, 10, 12, 1
4, 16 and 18).
The base of each of the bent portions 20 and 20 is connected to each of the through holes 1.
8 and 18, it is assembled between the pair of bracket elements 11 and 11 and an intermediate portion of the steering column 1.

When the steering column 1 is displaced forward due to the occurrence of a secondary collision, an intermediate portion of the steering column 1 pushes the curved portion 19 forward. As a result, each of the bent portions 20, 20 comes out of each of the through holes 18, while being plastically deformed to be handled. The plastic deformation of the bent portions 20 in this way absorbs the impact energy applied to the steering column 1 from the steering wheel, and protects the driver hitting the steering wheel. The configuration and operation other than the point of providing the energy absorbing member 17 are as follows.
This is the same as the case of the first example described above.

Next, FIGS. 7 and 8 show a third example of the embodiment of the present invention in which the above-described configuration is also added. In the case of this example, the function as an energy absorbing member is given to the locking bracket 6a which is fixed by welding to the intermediate portion of the steering column 1. The locking bracket 6a for constructing the structure of this embodiment is made by bending a metal plate such as a mild steel plate, and has a curved portion 21 for welding and fixing to a central portion of the steering column 1 at the rear surface of the intermediate portion.
A pair of side plates 7a, 7a parallel to each other are provided on both left and right edges of the curved portion 21, respectively. And
Engagement notches 9a are formed in the lower half portions of the rear edges of both side plate portions 7a, 7a at positions matching each other. A semi-cylindrical plate 22 is provided between the inner side surfaces of the pair of side plate portions 7a, 7a, at the peripheral edge of the rear end of the locking notches 9a. This strut 2
2 is screwed with a holding bolt and a nut (not shown in FIGS. 8 to 9) inserted through the through holes 14 formed in the holding plate portions 13 and 13 of the upper bracket 10a and the respective locking notches 9a. This is provided to prevent the pair of side plate portions 7a from approaching each other when tightened.

Further, in the case of the present embodiment, bands 23 for energy absorption are formed on upper half portions of the rear end edges of the pair of side plates 7a, 7a, respectively, integrally with the locking bracket 6a. Provided. Each of the belt-like portions 23, 23 is 18 outwardly in the width direction from the rear edge of each of the side plate portions 7a, 7a.
It extends forward through a curved portion 24 bent at 0 degrees. On the other hand, in order to form an energy absorbing structure in combination with the belt-like portions 23, 23, the bracket elements 11a, 11a of the upper bracket 10a are formed.
A folded portion 25 and a holding portion 26 are provided in the upper half of the rear edge of the pair of holding plate portions 13, 13. The folded portion 25 is respectively provided with the holding plate portions 13 and 1
3 extends forward from a rear end edge of the rear portion 3 via a curved portion 27 bent 180 degrees outward in the width direction. The holding portion 26 bends the front ends of the folded portions 25, 25 at right angles outward in the width direction, and has a slit-shaped through hole long in the axial direction of the steering column 1 at the base of the bent portion. 28 are formed.
Locking bracket 6 having strips 23, 23 as described above
The tip of each of the strips 23, 23 is
28, the pair of bracket elements 11
a, 11a and an intermediate portion of the steering column 1.

When the steering column 1 is displaced forward due to the occurrence of a secondary collision, an intermediate portion of the steering column 1 pulls the strips 23 forward. As a result, each of these strips 23, 23
The curved portion 21 welded and fixed to the steering column 1 is displaced forward while being plastically deformed so as to be handled by the folded portions 25, 25 provided in the upper half of the rear end edge of the pair of holding plate portions 13, 13. Tolerating things. Thus, each of the strips 2
The plastic deformation of the members 3 and 23 absorbs the impact energy applied to the steering column 1 from the steering wheel and protects the driver who has hit the steering wheel. The pressing portions 26, 26 prevent the front ends of the strips 23, 23 from being displaced outward in the width direction at the initial stage of the secondary collision.
It is provided in order to efficiently absorb the impact energy by plastic deformation of 23. The configuration and operation other than the provision of the strips 23, 23, etc. for absorbing impact energy are the same as in the case of the first example described above.

FIGS. 9 to 10 show a fourth embodiment of the present invention in which the above-described configuration is also added. In the case of this example, the upper bracket 10b
To absorb the impact energy applied to the steering column 1 at the time of the secondary collision between the bracket elements 11b, 11b and the holding bolt 15 connecting the two bracket elements 11b, 11b and the locking bracket 6b. Is provided. Therefore, the holding plate 1 of the bracket elements 11b, 11b constituting the structure of this embodiment
3 has a through hole 14 through which the holding bolt 15 is inserted;
Elongated holes 29, 29 are formed continuously from the front edge of 14 and forward. The width of each of the long holes 29 is smaller than the outer diameter of the rod portion of the holding bolt 15. These elongated holes 29, 29 and the through holes 14, 14 correspond to the above-described longitudinally long through holes, and the respective through holes 14, 1
4 corresponds to the rear end of each of these through holes. In addition, slit-shaped through holes 30, 30 are formed on both upper and lower portions of the elongated holes 29, 29 in a part of each of the holding plate portions 13, 13 over substantially the entire length of the elongated holes 29, 29. Provided.

In the case of this embodiment, the locking bracket 6b
Is not provided with a locking notch, but instead has a circular through hole that allows the holding bolt 15 to be inserted into a position where the pair of left and right side plates 7, 7 constituting the locking bracket 6b are aligned with each other. 31, 31 are formed. Therefore, the locking bracket 6b and the steering column 1 to which the locking bracket 6b is fixed by welding can be displaced forward only in synchronization with the holding bolt 15. When the steering column 1 is displaced forward due to the occurrence of the secondary collision, an intermediate portion of the steering column 1 pulls the holding bolt 15 forward. As a result, both ends of the bolt 15 enter the slots 29. Then, the bolt 15 is connected to each of the long holes 29, 29.
As described above, the retaining brackets 6b welded and fixed to the steering column 1 are allowed to be displaced forward while plastically deforming a part of each of the holding plate portions 13, 13 so as to expand the width of the holding plate. As described above, a part of each of the holding plate portions 13 and 13 is plastically deformed, thereby absorbing the impact energy applied to the steering column 1 from the steering wheel and protecting the driver hitting the steering wheel. In addition, each said through-hole 30 and 30 is said each said long hole 2.
It is provided to reduce the load required to widen the width of 9 and 29 and to efficiently absorb the impact energy due to the plastic deformation of each of the holding plate portions 13 and 13.

Next, FIGS. 11 to 12 show a fifth embodiment of the present invention corresponding to the above. In the case of this example, the upper bracket 10c is integrally formed. That is, the upper bracket 10c is formed by a pair of mounting plate portions 3 from both end edges of a U-shaped holding portion 32 provided at an intermediate portion.
3, 33 are formed by bending right and left opposite directions. These two mounting plate portions 33, 33 are on the same plane with each other, and are mounted and fixed to the vehicle body at a lower portion of the dashboard or the like. On the other hand, the front half of the left and right inner surfaces of the holding portion 32, which correspond to a portion sandwiching the middle portion of the steering column 1 from both the left and right sides, are each provided with a total of four holding pieces 34, 34, two each. It is formed so as to protrude inward from each of the inner side surfaces. That is, U-shaped cuts each having an open rear are formed at four positions near both ends of the holding portion 32, and the inside of each of the cuts is bent and raised inside the holding portion 32. The above-mentioned holding pieces 34, 34 are provided. And, by each of these holding pieces 34, 34,
The middle column of the steering column 1 is pressed down. In the actual case, the formation of the cuts and the formation of the holding pieces 34 are performed in one behavior. or,
A locking projection 35 is provided on the inner surface of the central portion of the holding portion 32, a locking hole 36 is provided on a rear surface of the middle portion of the steering column 1,
The locking projections 35 and the locking holes 36 are engaged with each other. Therefore, the steering column 1 having a circular cross-sectional shape is
There is no rotation with respect to 0c.

In the case of the structure of the present embodiment, the holding pieces 34, 34 normally hold the intermediate portion of the steering column 1 in the back of the holding portion 32 constituting the upper bracket 10c. 1 is supported on the vehicle body via the upper bracket 10c. On the other hand, when a forward impact load is applied to the intermediate portion of the steering column 1 at the time of the secondary collision, the steering column 1 is displaced forward while pushing the holding pieces 34, 34. Tolerate. That is, at the time of the secondary collision, the tip portions of the pressing pieces 34, 34 are plastically or elastically deformed outward in the width direction, and the intermediate portion of the steering column 1 is formed between the pressing pieces 34, 34 facing each other. Allow to pass. Accordingly, the steering wheel is allowed to be displaced forward, and a large impact is prevented from being applied to the driver's body that collides with the steering wheel, thereby protecting the driver. In addition, in the case of the structure of the present example, since the locking bracket as in the structures of the first to fourth examples described above is not required, the structure for protecting the driver in the event of a secondary collision can be reduced in size and size. Lightweight and inexpensive.

Next, FIGS. 13 and 14 show a sixth example of the embodiment of the present invention, which also corresponds to the above.
In the case of this example, a pair of flat portions 37, 37 parallel to each other are formed on the left and right sides of the intermediate portion of the steering column 1, and the holding portion 3 that forms the upper bracket 10d.
A pair of flat plate portions 3 parallel to each other on both left and right sides of 2a
8, 38 are constituted. And each of these flat plate portions 3
The rotation of the steering column 1 with respect to the upper bracket 10d is prevented based on the engagement between the inner surfaces of the upper and lower brackets 8 and 38 and the flat portions 37 and 37. Other configurations and operations are the same as those of the fifth example.

FIGS. 15 and 16 show a seventh embodiment of the present invention corresponding to the above. In the case of the structure of the present example, a pair of flat portions 37, 37 parallel to each other are formed on the left and right sides of the middle portion of the steering column 1, and a concave groove 3 is formed in the center of each of the flat portions 37, 37.
9 and 39 are formed along the axial direction of the steering column 1. Further, a part of the pair of left and right flat plate portions 38 provided on the holding portion 32a constituting the upper bracket 10e, and a portion corresponding to each of the concave grooves 39, 39 has a through hole 4 formed therein.
0 and 40 are respectively formed. And, it hangs over these through holes 40, 40 and each of the above-mentioned concave grooves 39, 39,
Synthetic resins 41, 41 are filled.

In the case of the structure of the present embodiment, the intermediate portion of the steering column 1 is normally attached to the two synthetic resins 41, 41.
And an intermediate portion of the steering column 1 is supported on the vehicle body via the upper bracket 10e. On the other hand, when an impact load directed forward is applied to the intermediate portion of the steering column 1 at the time of the secondary collision, the respective synthetic resins 41, 41
The steering column 1 and the upper bracket 10e are separated from each other by tearing or scraping off the portions between the concave grooves 39, 39 and the through holes 40, 40.
Then, the steering column 1 is allowed to be displaced forward, and a large impact is prevented from being applied to the driver's body hitting the steering wheel, thereby protecting the driver.

Next, FIGS. 17 and 18 show an eighth embodiment of the present invention, which also corresponds to the above.
In the case of the structure of this example, the cross-sectional shape of the portion held by the upper bracket 10f at the intermediate portion of the steering column 1 remains circular. In the middle portion of the steering column 1, recesses 39, 39 extending in the axial direction of the steering column 1 are formed at portions slightly rearward from the position on the opposite side in the diameter direction. Other configurations and operations are the same as those of the above-described seventh example.

[0029]

Since the steering column apparatus of the present invention is constructed and operates as described above, it can contribute to the improvement of the collision safety of a small car such as a light truck.

[Brief description of the drawings]

FIG. 1 shows a first example of an embodiment of the present invention in a normal state,
FIG. 4 is a side view showing a state where a part of the upper bracket is cut off.

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

FIG. 3 is a side view showing a first example of the embodiment of the present invention in a state after a secondary collision has occurred, with a part of an upper bracket cut away.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 shows a second example of the embodiment of the present invention in a normal state,
FIG. 6 is a partial side view showing a state where a part of the upper bracket is cut off.

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 shows a third example of the embodiment of the present invention in a normal state,
FIG. 6 is a partial side view showing a state where a part of the upper bracket is cut off.

FIG. 8 is a sectional view taken along line DD of FIG. 7;

FIG. 9 is a partial side view showing a fourth example of the embodiment of the present invention.

FIG. 10 is a sectional view taken along the line EE of FIG. 9;

FIG. 11 is a view similar to FIG. 9, but showing a fifth example of the embodiment of the present invention;

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

FIG. 13 is a view similar to FIG. 9, showing a sixth example of the embodiment of the present invention.

FIG. 14 is a sectional view taken along line GG of FIG. 13;

FIG. 15 is a view similar to FIG. 9, showing a seventh example of the embodiment of the present invention.

FIG. 16 is a sectional view taken along the line HH in FIG. 15;

FIG. 17 is a view similar to FIG. 9, showing an eighth embodiment of the present invention;

18 is a sectional view taken along the line II of FIG. 17;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Steering column 2 Steering shaft 3 Lower bracket 4 Mounting plate part 5 Holding plate part 6, 6a, 6b Locking bracket 7, 7a Side plate part 8 Connecting plate part 9, 9a Locking notch 10, 10a, 10b, 10c, 10d , 10e, 10
f Upper bracket 11, 11a, 11b Bracket element 12 Mounting plate portion 13 Holding plate portion 14 Through hole 15 Holding bolt 16 Nut 17 Energy absorbing member 18 Through hole 19 Curved portion 20 Bent portion 21 Curved portion 22 Stretch plate 23 Band portion 24 Curved Part 25 Folded part 26 Suppressing part 27 Curved part 28 Through hole 29 Long hole 30 Through hole 31 Through hole 32, 32a Holding part 33 Mounting plate part 34 Suppression piece 35 Locking projection 36 Locking hole 37 Flat part 38 Flat part 39 Groove 40 Through hole 41 Synthetic resin

Claims (1)

[Claims] 1. A tubular steering column for rotatably supporting a steering shaft inside, a lower bracket for supporting a lower portion of the steering column so as to be swingable with respect to a vehicle body, and being coupled to the vehicle body. And an upper bracket for holding an intermediate portion of the steering column from both sides, wherein the upper bracket applies a forward-facing impact applied to the intermediate portion of the steering column to the intermediate portion of the steering column. A steering column device which is detachably held based on a load.