KR101345081B1

KR101345081B1 - Crash Energy Absorbing Mounting Bracket and Steering Column for Vehicle having The Same

Info

Publication number: KR101345081B1
Application number: KR1020100098608A
Authority: KR
Inventors: 정성준
Original assignee: 주식회사 만도
Priority date: 2010-10-11
Filing date: 2010-10-11
Publication date: 2013-12-26
Also published as: KR20120037073A

Abstract

One embodiment of the present invention relates to a shock absorbing mounting bracket and a steering column of a vehicle having the same, according to the present invention, the mounting bracket of the steering column can perform a tilt operation without a separate tilt operating part, and at the same time It is possible to absorb the impact of the impact of the collision to improve the impact stability of the vehicle, there is an effect that can reduce the number of parts and shorten the manufacturing and assembly process.

Description

Crash Energy Absorbing Mounting Bracket and Steering Column for Vehicle having The Same}

The present invention relates to a shock absorbing mounting bracket and a steering column of a motor vehicle having the same. More specifically, the steering column's mounting bracket can perform the tilting operation without the need for separate tilting parts, and at the same time it can absorb the impact of the car's collision, improving the collision stability of the car, reducing the number of parts and It relates to a shock absorbing mounting bracket that can shorten the manufacturing and assembly process, and a steering column of a vehicle having the same.

In general, the steering device of a vehicle is a device for changing the driving direction of the vehicle at the driver's will, and is a device that assists the driver in advancing the vehicle in a desired direction by arbitrarily changing the rotation center of the front wheel of the vehicle. to be. In such a steering device of a vehicle, steering force generated by a driver operating a steering wheel is transmitted to a rack pinion mechanism through a steering column of a steering column and finally changes both wheel directions.

In addition, the steering device of the vehicle may add convenience functions such as a telescope function or a tilt function to the steering column for the driver's convenience. The tilt device is a device for adjusting the fixed angle of the steering wheel. The telescope device is formed by inserting two hollow tubes to extend and contract in the axial direction. The telescope device also has a function of absorbing impact energy while collapsing a steering shaft and a steering column during a collision of a vehicle.

Therefore, the steering column is divided into a general steering column without such a convenience function, and a telescope or tilt steering column according to this convenience function, and in some cases, a tilt function may be added to the telescope steering column. Through this convenient function, the driver can perform smooth steering operation by adjusting the degree of inclination or the inclination angle of the steering wheel according to his height or body shape.

1 is a schematic view showing a steering apparatus of a general vehicle, in which the lower end of the steering shaft 130 is connected to the gearbox 180 in a steering apparatus of a general vehicle, the steering shaft 130 is an arbitrary angle in the condition of the vehicle structure In order to satisfy this condition, the intermediate shaft 120, which is connected via the universal joint and consists of the tube 100 and the shaft 110, is connected to the gearbox 180 while being inclined to Will be used.

The intermediate shaft 120 is connected to the steering shaft 130 connected to the steering wheel 170 and the other side is connected to the gear box 180 to transmit the rotational force generated from the steering wheel 170 to the gear box 180 To the wheel.

The steering column 150 includes a column tube 147, an upper mounting bracket 160 and a lower mounting bracket 165, where the column tube 147 includes an outer tube 145 and an inner tube 140. The outer tube 145 is formed on the steering wheel 170 side and is provided with an inner tube 140 that is smaller in diameter than the outer tube 145 and can be inserted into the inner part during impact. The outer tube 145 and the inner tube 140 are formed of a hollow tube so that the steering shaft 130 can rotate smoothly.

The dust cover 105 is fixed to the dash panel 115 and is used to block noise or the like flowing into the room through the engine room.

However, in the conventional vehicle steering apparatus according to the prior art, in addition to the upper mounting bracket and the lower mounting bracket, in addition to the upper mounting bracket and the lower mounting bracket, there is a problem of manufacturing and assembling additional parts that can be supported by rotating the steering column. there was.

In addition, in order to absorb a shock during a collision of the car to add a function to protect the safety of the driver, there was a problem that additionally manufactured and assembled a separate component that can also absorb the shock.

The present invention has been made in the above-mentioned background, the mounting bracket of the steering column can perform the tilt operation even without a separate tilt operating part, and at the same time can absorb the impact of the collision of the car to improve the collision stability of the car It is an object of the present invention to provide a shock absorbing mounting bracket and a steering column of an automobile having the same, which can improve the number of parts and shorten the manufacturing and assembly processes.

In order to achieve the above object, an embodiment of the present invention includes a first plate having a column through hole through which a steering column penetrates at a central portion thereof, and formed by bending an end portion of the first plate, and having an intermediate shaft penetrating the central portion thereof. A hinge plate having a second plate having an intermediate shaft through hole, a connecting portion formed by bending an end of the second plate, and a supporting portion formed by bending the connecting portion, the opposite ends of which are formed to face each other. It provides a shock absorbing mounting bracket to be formed.

According to the present invention, even without a separate tilt operating part, the mounting bracket of the steering column can perform the tilt operation, and at the same time can absorb the impact caused by the collision of the car to improve the collision stability of the car, There is an effect that can reduce the number and shorten the manufacturing and assembly process.

1 is a schematic view showing a steering apparatus of a general vehicle,
Figure 2 is a perspective view showing a shock absorbing mounting bracket according to an embodiment of the present invention,
3 is a perspective view illustrating a hinge tube and a bush in the shock absorbing mounting bracket according to an embodiment of the present invention;
4 and 5 are a front view and a side view showing a shock absorbing mounting bracket according to an embodiment of the present invention,
Figure 6 is a side view showing a steering column of a vehicle provided with a shock absorbing mounting bracket according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

Figure 2 is a perspective view showing a shock absorbing mounting bracket according to an embodiment of the present invention, Figure 3 is a perspective view showing a hinge tube and the bush of the shock absorbing mounting bracket according to an embodiment of the present invention, Figures 4 and 5 Figure 6 is a front view and a side view showing a shock absorbing mounting bracket according to an embodiment of the present invention, Figure 6 is a side view showing a steering column of a vehicle having a shock absorbing mounting bracket according to an embodiment of the present invention.

As shown in these drawings, the shock absorbing mounting bracket 200 according to an embodiment of the present invention includes a first plate 220 having a column through hole 223 through which a steering column penetrates at a center thereof, and the first plate 220. The second plate 210 is formed by bending the end of the first plate 220 and the intermediate shaft through-hole 215 through which the intermediate shaft penetrates, and the end of the second plate 210 is bent. It is formed by bending the connecting portion 237 and the connecting portion 237 is formed, including a hinge plate 230 having a support portion 239 is formed so that both ends are opposed to each other.

In the shock absorbing mounting bracket 200 according to the embodiment of the present invention, the steering column may be assembled and tilted with the vehicle body 260 and the shock absorbing mounting bracket 200 performs a tilting operation while simultaneously impacting the vehicle. Has a feature that absorbs the structure.

The shock absorbing mounting bracket 200 is largely bent and integrally formed with the first plate 220, the second plate 210, and the hinge plate 230 to be rotatably coupled to the vehicle body 260 of the vehicle.

The first plate 220 is provided with a column through hole 223 and a column fastening hole through which a steering column penetrates in a central portion thereof, and a second plate 210 formed by bending an end of the first plate 220 has a central portion. An intermediate shaft through hole 215 through which the intermediate shaft penetrates is provided, and the hinge plate 230 formed by bending an end of the second plate 210 is rotatably coupled to the vehicle body 260 of the vehicle.

The first plate 220 and the second plate 210 are bent at approximately 20 ° to 70 °, and the steering column and the column through hole 223 and the intermediate shaft through hole 215 are bent to communicate with each other. On the lower side of the steering column, an intermediate shaft connected to the universal joint is penetrated and coupled.

In addition, the first plate 220 coupled to the steering column is provided with a column fastening hole 225 around the column through hole 223 to be coupled to the steering column with a screw or bolt.

The intermediate plate through hole 215 is formed in the second plate 210, and the reinforcing flange 213 formed at both ends of the second plate 210 by bending at a predetermined angle with the surface of the second plate 210. ) Is formed to compensate for the rigidity of the entire mounting bracket 200 when assembled to the vehicle body 260 of the vehicle.

When the first plate 220 and the second plate 210 are bent at a predetermined angle as described above, when the vehicle collides with each other, the first plate 220 coupled with the steering column faces the second plate 210 in front of the vehicle. And the second plate 210 coupled to the vehicle body 260 of the vehicle via the hinge plate 230 is subjected to the force toward the first plate 220 of the rear of the vehicle. The bending portion of the first plate 220 and the second plate 210 is folded to absorb the impact while the plastic deformation.

Hinge plate 230 is formed by bending the end of the second plate 210, it is rotatably coupled to the vehicle body 260 of the vehicle to enable the tilt operation of the steering column.

The hinge plate 230 is provided with a connecting portion 237 formed by bending the end of the second plate 210 and a supporting portion 239 formed by bending the connecting portion 237, and both ends are bent to face each other. However, the support portion 239 is formed with a hinge hole 235 penetrating in the tilt axis direction of the steering column is rotatably coupled to the vehicle body 260 by the fastening member.

The connecting portion 237 of the hinge plate 230 is formed by bending the end of the second plate 210 toward the first plate 220 by about 10 ° to 50 °, and is formed by bending the connecting portion 237 ( 239 is formed such that both end portions face each other in the tilt axis direction and face each other.

In this way, the support portion 239 having both ends formed to face each other is provided with a hinge hole 235, and a fastening member serving as a tilt shaft moves the mounting bracket 200 through the hinge hole 235 to the vehicle body 260. )

Here, the fastening member is composed of a bolt and a nut coupled to the vehicle body 260 of the vehicle to tighten both sides of the support 239, so that the bolt acts as a tilt shaft when the steering column is tilted.

In addition, the end of the support portion 239 is provided with a reinforcement portion 233 bent at a predetermined angle to compensate for the rigidity of the hinge plate 230 during the tilt operation of the steering column.

In addition, the hinge hole 235 of the support part 239 may be coupled to the vehicle body 260 by a fastening member penetrating the inner side of the hinge tube 250 is coupled to the hinge pipe 250 of the hollow pipe shape, The bush 240 may be coupled between the hinge hole 235 and the hinge tube 250.

The bush 240 has a trunk portion 247 inserted into the hinge hole 235 and a large diameter portion 245 formed to enlarge the outer diameter from the trunk portion 247 to prevent the hinge hole 235 from being separated. In addition, an uneven portion 243 is formed on an inner circumferential surface into which the hinge tube 250 is inserted, thereby reducing the pressure input when the hinge tube 250 is press-fitted.

As such, when the bush 240 is coupled to the hinge hole 235 through the bush 240, the bush 240 rotates in the hinge hole 235 and acts as a tilt shaft during the tilt operation. By the vehicle body 260.

In addition, the bush 240 has a cutout portion 249 radially cut from the inner circumferential surface to the outer circumferential surface thereof so that the bush 240 is firmly coupled to the hinge hole 235 by an elastic force circumferentially engaged when the hinge hole 235 is engaged. .

Since the bush 240 is required to be formed of a material having a predetermined bending and rigidity as well as low elasticity by heat as well as wear resistance and low friction, polyacetal (POM), polyamide (PA), polycarbonate (PC ), Polyimide (PI), polybutylene terephthalate (PBT), and the like.

On the other hand, the shock absorbing mounting bracket 200 as described above, the steering shaft 130 is connected to the steering wheel (see 170 of Figure 1), the steering shaft 130 is built-in rotatable coupled and shock-absorbing The mounting bracket 200 is coupled to the column tube 147 and the upper mounting bracket 160 which is coupled to the column tube 147 to fix the steering column to the vehicle body, thereby configuring the steering column of the vehicle.

According to the present invention having such a structure and shape, even without a separate tilt operating part, the mounting bracket of the steering column can perform the tilt operation, and at the same time can absorb the impact caused by the collision of the vehicle, the collision stability of the vehicle It is effective to improve the number of parts, and to reduce the number of parts and shorten the manufacturing and assembly process.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

200: shock absorbing mounting bracket according to an embodiment of the present invention
210: second plate 213: reinforcing flange
215: intermediate shaft through hole 220: first plate
223: column through hole 225: column fastening hole
230: hinge plate 233: reinforcement
237 connection portion 239 support portion
240: bush 250: hinge tube

Claims

A first plate having a column through hole through which a steering column penetrates the center thereof,
A second plate formed by bending an end portion of the first plate and having an intermediate shaft through hole through which an intermediate shaft penetrates in a central portion thereof;
And a hinge plate having a connecting portion formed by bending an end portion of the second plate and a supporting portion formed by bending the connecting portion, and opposite ends of the second plate are formed to face each other.

The method of claim 1,
The support portion is a shock absorbing mounting bracket, characterized in that the hinge hole penetrates in the tilt axis direction of the steering column.

3. The method of claim 2,
The hinge hole is coupled to the hollow hinge tube is coupled to the shock absorbing mounting bracket, characterized in that rotatably coupled to the vehicle body of the vehicle.

The method of claim 3, wherein
Shock absorbing mounting bracket, characterized in that the bush is coupled between the hinge hole and the hinge tube.

5. The method of claim 4,
The bush is shock-absorbing mounting bracket, characterized in that the concave-convex portion is formed on the inner circumferential surface into which the hinge tube is inserted.

5. The method of claim 4,
The bush is a shock absorbing mounting bracket, characterized in that the incision is formed from the inner peripheral surface to the outer peripheral surface cut.

The method of claim 1,
The support part is provided with a shock absorbing mounting bracket, characterized in that the reinforcing portion is formed by bending the end portion at a predetermined angle.

The method of claim 1,
The second plate has a shock absorbing mounting bracket, characterized in that the reinforcing flange is formed by bending both ends at a predetermined angle.

The shock absorbing mounting bracket of any one of claims 1 to 5;
A steering shaft connected to the steering wheel;
A column tube having the steering shaft embedded therein and rotatably coupled to the shock absorbing mounting bracket; And
An upper mounting bracket coupled to the column tube to fix a steering column to a vehicle body;
Steering column of the vehicle having a shock absorbing mounting bracket configured to include.