KR101724202B1 - Steering column for vehicle - Google Patents

Steering column for vehicle Download PDF

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Publication number
KR101724202B1
KR101724202B1 KR1020150113967A KR20150113967A KR101724202B1 KR 101724202 B1 KR101724202 B1 KR 101724202B1 KR 1020150113967 A KR1020150113967 A KR 1020150113967A KR 20150113967 A KR20150113967 A KR 20150113967A KR 101724202 B1 KR101724202 B1 KR 101724202B1
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KR
South Korea
Prior art keywords
gear
column
circumferential surface
telescope
outer circumferential
Prior art date
Application number
KR1020150113967A
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Korean (ko)
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KR20170019743A (en
Inventor
이지훈
김기홍
Original Assignee
주식회사 만도
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Priority to KR1020150113967A priority Critical patent/KR101724202B1/en
Publication of KR20170019743A publication Critical patent/KR20170019743A/en
Application granted granted Critical
Publication of KR101724202B1 publication Critical patent/KR101724202B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/20—Connecting steering column to steering gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)

Abstract

The present invention relates to a steering column of an automobile, and more particularly, to a steering column of an automobile, which comprises an outer column having a distance portion protruding from both sides of the outer circumference and having an outer circumference between the distance portions, And a telescopic member having a ring shape coupled to an outer peripheral surface of an adjuster bolt passing through the distance portion and a second gear engaged with an outer peripheral surface of the inner column, Only the inner column can be slidably moved into the outer column, thereby preventing interference between the control lever and the vehicle package, thereby assuring safety of the driver.

Figure R1020150113967

Description

Steering column for vehicle < RTI ID = 0.0 >

The present invention relates to a steering column of an automobile, and more particularly, in an automobile crash, only the inner column can be slid into the outer column without the upper mounting bracket, the adjusting bolt and the adjusting lever being collapsed, To a steering column of an automobile in which interference of a vehicle package is prevented and the safety of the driver can be ensured.

1 is a perspective view showing a steering column of a conventional automobile.

1, the steering column of a conventional automobile includes a tilt bracket 120, a cam member 130 including a fixed cam 131 and an operation cam 133, an operation lever 140, a needle bearing 150, a nut 170, a capsule 180, and a mounting bracket 190.

The inner tube 103 is inserted into the outer tube 101, and the tilt bracket 120 surrounds the outer tube 101.

The adjuster bolt 110 is provided through the tilt bracket 120. The cam member 130, the operation lever 140, the needle bearing 150 and the nut 170 are sequentially inserted into the adjuster bolt 110 .

The mounting bracket 190 is coupled to the upper portion of the tilt bracket 120. Capsules 180 are provided on both sides of the mounting bracket 190. The mounting bracket 190 is fixed to the vehicle body through the capsule 180 do.

On the other hand, a plurality of holes 181 are formed in the capsule 180, and a molding material is injected into the holes 181.

When a shock is applied to the steering column of the conventional automobile, the molding part is broken and the mounting bracket 190 and the capsule 180 are separated and collapsed.

However, in the conventional steering column of the conventional automobile, when the automobile collides with the mounting bracket, the adjustment bolt and the adjustment bolt are collapsed with each other, so that the operation lever is interfered with the vehicle package.

The present invention is conceived from the foregoing background and it is an object of the present invention to provide an air conditioner in which an upper mounting bracket, an adjustment bolt and an adjustment lever can be slid into an outer column only without collapsing, And to provide a steering column of an automobile which can be secured to the driver.

The objects of the present invention are not limited thereto, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

According to the present invention, a first gear is provided on an outer circumferential surface of the outer column, the outer circumferential surface of which is spaced apart from the outer circumferential surface of the outer circumferential portion, and a circumferential surface of the outer circumferential portion corresponding to the incised portion of the outer column, And a telescopic member having a ring shape coupled to the outer peripheral surface of the adjuster bolt passing through the inner column and the distance portion, and a second gear engaged with the first gear is coupled to the outer peripheral surface of the steering column. .

According to the present invention, in the event of a vehicle collision, the upper mounting bracket, the adjusting bolt and the adjusting lever are not collapsed, only the inner column is slid into the outer column to prevent interference between the adjusting lever and the vehicle package, Can be guaranteed.

1 is a perspective view showing a steering column of a conventional automobile;
2 is a perspective view of a steering column of an automobile according to the present invention;
3 is an exploded perspective view of a steering column of an automobile according to the present invention;
4 is a sectional view of a steering column of an automobile according to the present invention;
5 is a sectional view of a steering column of an automobile according to another embodiment of the present invention;
6 is a sectional view of a steering column of an automobile according to another embodiment of the present invention; And
7 is a cross-sectional view of a steering column of a vehicle according to another 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 describing the components of the present invention, the terms first, second, A, B, (a), (b), and the like 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."

FIG. 2 is a perspective view of a steering column of an automobile according to the present invention, FIG. 3 is an exploded perspective view of a steering column of an automobile according to the present invention, FIG. 4 is a sectional view of a steering column of an automobile according to the present invention, 6 is a cross-sectional view of a steering column of an automobile according to another embodiment of the present invention, and Fig. 7 is a sectional view of a steering column of an automobile according to another embodiment of the present invention. Sectional view of the column.

As shown in these drawings, the steering column of an automobile according to an embodiment of the present invention includes a distance portion 211 protruding from both sides of the outer circumferential surface, and an outer circumferential surface between the distance portions 211 is cut An inner column 230 provided with a first gear 231 on the outer circumferential surface at a position corresponding to the incised portion of the outer column 210 and an adjuster bolt 231 passing through the distance portion 211 And a telescopic member 250 to which a second gear 251 engaged with the first gear 231 is coupled to the outer circumferential surface.

The inner column 230 is inserted into the outer column 210. The steering shaft 205 passes through the inner column 230 and the outer column 210. The steering shaft 205 is connected to the steering wheel City).

The inner column 230 is provided with a first gear 231 along the axial direction on its outer circumferential surface and the first gear 231 passes through the outer column 210 and meshes with a second gear 251 which will be described later.

The distance portion 211 is formed to protrude from both sides of the outer circumferential surface of the outer column 210. The distance portion 211 is formed in a shape in which a part of the outer circumferential surface of the outer column 210 is cut, And through holes 315 facing each other are formed on both sides of the distance portion 211.

The through hole 315 penetrates through the adjuster bolt 270 and the through hole 315 is formed in an elliptical shape so that the adjuster bolt 270 can be easily assembled.

If the through hole 315 is formed in a regular hole of the size of the outer circumference of the adjuster bolt 270, the adjuster bolt 270 is hard to be assembled into the through hole 315, (270) is formed in an elliptical shape to facilitate assembly.

The outer column 210 in which the distance portion 211 is integrally formed is formed with a slit portion 213 along the axial direction from the end where the inner column 230 is inserted and the slit portion 213 has a distance (Not shown).

That is, the slit portion 213 is formed in both the axial directions at the cut portion between the distance portions 211. One side of the slit portion 213 is formed at the cut-away portion of the inner column 230 of the outer column 210 And the other side of the slit portion 213 is formed in a predetermined length in the direction of the end where the lower mounting bracket 207 of the outer column 210 is coupled at the incised portion.

When the tilt bracket 208 to be described later presses the inside of the inner tube 230 toward the inner tube 230 by tightly supporting the distance portion 211 and presses the tilt bracket 208 inward to narrow the width of the slit portion 213, And the steering column is fixed by the supporting force between the outer column 210 and the inner column 230 and the supporting force between the tilt bracket 208 and the distance portion 211.

The tilt brackets 208 are provided on both sides of the distance portion 211. The tilt brackets 208 are formed in a substantially ∩ shape and tilt brackets 306 are formed on both sides of the tilt bracket 208 to face each other have.

An upper mounting bracket 209 extending from both sides of the tilt bracket 208 and a lower mounting bracket 207 coupled to an end of the outer column 210 are coupled to the vehicle body to fix the steering column to the vehicle body .

The adjust bolt 270 is coupled through the through hole 315 of the distance portion 211 and the tilt hole 306 of the tilt bracket 208. The fixed cam 374 is fixed to one end of the adjust bolt 270, The operating cam 376, the bearing 273, the nut 271 and the like are sequentially engaged and the control lever 275 is integrally coupled to the operation cam 376.

A hollow telescope member 250 is coupled to the adjuster bolt 270. A second gear 251 is coupled to the telescope member 250 to engage with the first gear 231, The scope member 250 and the second gear 251 are provided between the distance portion 211 and supported.

At this time, the telescopic member 250 and the second gear 251 are released from the bearing force of the distance portion 211 when the driver operates the telescope and are rotated from the adjuster bolt 270, The second gear 251 may be press-fitted into the telescope member 250 so that the second gear 251 rotates together.

The telescope member 250 is ring-shaped and is rotatably coupled to the adjuster bolt 270. A second gear 251 is coupled to the outer circumferential surface of the telescope member 250 so that the distance portion 211 presses the both ends thereof The distance portion 211 is released from pressure and is rotated together with the second gear 251 from the adjustment bolt 270 so that the inner column 230 slides into the outer column 210 .

The telescope member 250 may be integrally formed with the telescope member 250. That is, the telescope member 250 is rotatably coupled to the adjuster bolt 270, and the second gear 251 May be formed.

Accordingly, when the tilting operation is performed, the driver rotates the adjusting lever 275 in one direction to unfasten the adjusting lever 275, places the outer column 210 at the desired tilting position, rotates the adjusting lever 275 in the other direction The fixed cam 374 is pushed in the direction of the tilt bracket 208 by the cam stepped portion while being rotated in the other direction with respect to the operation cam 376. As a result, the tilt bracket 208 is tightened, The position of the outer column 210 is fixed and the tilting operation is completed.

Likewise, even when the telescopic operation is being performed, the driver rotates the control lever 275 in one direction so that the second gear 251 engaged with the first gear 231 and the telescope member 250 rotate, Position of the outer column 210 is fixed and the control lever 275 is rotated in the other direction to lock the position of the outer column 210 and the operation of the telescope is completed.

The second gear 251 engaged with the first gear 231 is moved from the telescope member 250 to the first gear 231 by an impact load The upper mounting bracket 209 is coupled to the vehicle body so that only the inner column 230 is slid into the outer column 210 and the adjustment lever 275 and the vehicle package So that the safety of the driver can be assured.

The first gear 231 provided on the outer circumferential surface of the inner column 230 passes through the outer column 210 when the telescope is operated or when the vehicle collides with the inner column 230. [ The width of the slit portion 213 formed in the outer column 210 is formed to be wider than the width of the first gear 231.

The first gear 231 provided on the outer peripheral surface of the inner column 230 passes through the slit portions 213 while the inner column 230 is slid into the outer column 210 during operation of the telescope or in the event of an automobile crash, So that interference can be prevented.

At this time, a hollow elastic support member 390 is interposed between the telescope member 250 and the second gear 251.

The elastic support member 390 supports between the telescope member 250 and the second gear 251. When an impact load is generated in a collision of an automobile, Tuning the coupling force between the telescope member 250 and the second gear 251 so as to be rotatable from the first gear 250.

That is, when the impact load generated upon collision of the automobile is greater than the coupling force between the second gear 251 coupled to the telescope member 250, the second gear 251 from the telescope member 250 is subjected to an impact load The telescopic member 250 and the second gear 251 are formed of a rigid material such as steel or the like so that the coupling force of the telescopic member 250 and the second gear 251 is increased so that the elastic supporting member 390 is interposed, 250 and the second gear 251 is lowered.

The resilient support member 390 is made of an elastic material. When the elastic force is large, the rigidity is small, so that the supporting force for supporting the telescopic member 250 and the second gear 251 is small, and the small force is transmitted The inner gear 230 is slid into the outer column 210 while the second gear 251 is rotated from the telescope member 250 due to the impact.

If the resilient force of the elastic support member 390 is small, the rigidity of the resilient support member 390 is large, the supporting force for supporting the telescope member 250 and the second gear 251 increases, The coupling force of the second gear 251 is smaller than the coupling force of the second gear 251 coupled to the telescope member 250 without the elastic supporting member 390. [

Therefore, the coupling force between the telescope member 250 and the second gear 251 can be tuned according to the material of the elastic support member 390, and the gear teeth of the first gear 231 and the second gear 251 The engagement force between the telescope member 250 and the second gear 251 can be tuned depending on the size of the shape.

If the gear teeth of the first gear 231 and the second gear 251 are large, a large impact must be transmitted to rotate the second gear 251 from the telescope member 250 due to the impact, And the second gear 251 is small, the second gear 251 is rotated by the impact from the telescope member 250 even if a small impact is transmitted.

In addition, the elastic supporting member 390 is provided with a protrusion 391 protruding from the outer circumferential surface.

The elastic supporting member 390 is provided with the protrusion 391 so that the contact area with the second gear 251 is reduced and the supporting force for supporting the second gear 251 is reduced so that the telescope member 250 and the second The coupling force between the gears 251 is also reduced.

The elastic support member 390 may be formed by protruding the protrusion 391 on the inner circumferential surface.

5 shows another embodiment of the telescope member 250 and the second gear 251. [

5 shows a first engagement portion 553 formed on the telescope member 250 so that the elastic support member 390 and the second gear 251 are coupled to the telescope member 250 and are not moved in the axial direction There is shown an example in which the protruding portion 557 is formed and the second engaging portion 559 is formed in the second gear 251. [

5A illustrates an embodiment in which a first engaging portion 553 is formed on an outer circumferential surface of the telescope member 250. The first engaging portion 553 is provided with an elastic supporting member 390 are coupled and fixed so as not to move in the axial direction.

At this time, the elastic support member 390 supports between the telescopic member 250 and the second gear 251 even when the elastic support member 390 is coupled to the first engagement portion 553.

5B shows an embodiment in which a protruding portion 557 protruding from the outer circumferential surface of the telescope member 250 is spaced apart from the protruding portion 557. An elastic supporting member 390 is interposed between the protruding portions 557, So as not to move in the axial direction.

At this time, the projection 557 does not interfere with the second gear 251, and the elastic supporting member 390 supports between the telescope member 250 and the second gear 251.

5C shows an embodiment in which a second engaging portion 559 is provided on the inner peripheral surface of the second gear 251. The second engaging portion 559 is provided with an elastic supporting member 390 are coupled and fixed so as not to move in the axial direction.

At this time, the elastic support member 390 supports between the telescopic member 250 and the second gear 251 even when the elastic support member 390 is coupled to the second engagement portion 559, And the second engaging portion 559 may be provided on the inner circumferential surface of the second gear 251.

The elastic support member 390 and the second gear 251 coupled to the telescope member 250 are fixed so as not to move in the axial direction so that the first gear 231 and the second gear 251 are stably engaged .

If the elastic support member 390 or the second gear 251 is moved in the axial direction from the telescope member 250, the first gear 231 and the second gear 251 can be partially engaged with each other, The first gear 231 and the second gear 251 are not engaged with each other, so that the inner column 230 and the outer column 210 can not be fixed.

6, as another embodiment of the telescope member 250, the telescope member 250 may be formed with a large-diameter portion 655 that is stepped at both ends and has a larger diameter.

The large diameter portion 655 prevents the elastic support member 390 or the second gear 251 coupled to the telescope member 250 from being moved in the axial direction and at the same time the distance portion 211 contacts the telescope member 250) to be widened, so that the steering column can be stably fixed at normal times.

The operation of the telescope will be described in detail. First, when the operator rotates the control lever 275 in one direction to release the control lever 275 during operation of the telescope, the fixed cam 374 and the operation cam 376 So that the tilt bracket 208 and the distance portion 211 are opened.

As the distance portion 211 does not press the telescope member 250 and the inner column 230 is slid into the outer column 210, the telescope member 250 is moved in the direction of the elastic support member 390, The first gear 231 and the second gear 251 are telescopically operated.

On the other hand, after the telescopic operation is completed, when the driver rotates the adjustment lever 275 in the other direction to lock the adjustment lever 275, the fixed cam 374 and the operation cam 376 are separated from each other, As the distance portion 211 is pressed by the distance portion 211 and the telescope member 250 is pressed by the distance portion 211, the second gear 251 is engaged with the first gear 231 to fix the steering column.

At this time, an impact load is generated at the time of a collision of the vehicle. This impact load causes a force for the inner column 230 to slide into the outer column 210, and accordingly, the second gear 231 engaged with the first gear 231 The gear 251 rotates from the telescope member 250 to absorb the impact load.

7, when the telescope member 250 and the second gear 251 are integrally formed, the second gear 251 is formed on the outer peripheral surface of the telescope member 250, When the inner column 230 generates a force for sliding movement into the outer column 210 due to the load, the telescopic member 250 (see FIG. 3) formed integrally with the second gear 251 engaged with the first gear 231, Is rotated from the adjust bolt 270 to absorb the impact load.

According to the embodiments of the present invention having such a shape and structure, in the event of an automobile collision, only the inner column can be slid into the outer column without being collapsed by the upper mounting bracket, the adjusting bolt and the adjusting lever, There is an effect that the interference of the vehicle package is prevented and the safety of the driver can be assured.

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.

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 scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

205: Steering shaft 207: Lower mounting bracket
208: tilt bracket 209: upper mounting bracket
210: outer column 211: distance portion
213: slit portion 230: inner column
231: first gear 250: telescope member
251: Second gear 270: Adjust bolt
271: Nuts 273: Bearings
275: control lever 306: tilt seat
315: through hole 374: fixed cam
376: Operation cam 390: Elastic support member
391: protrusion 553: first engaging portion
557: projecting portion 559: second engaging portion
655: large neck

Claims (10)

An outer column in which a distance portion protruding from both sides of the outer circumferential surface is formed so as to face each other, and an outer circumferential surface between the distance portions is cut out;
An inner column having a first gear at an outer circumferential surface at a position corresponding to an incised portion of the outer column; And
And a telescopic member having a ring shape coupled to an outer circumferential surface of the adjusting bolt passing through the distance portion and having a second gear engaged with the first gear on an outer circumferential surface thereof,
And an elastic support member formed in a hollow shape between the telescope member and the second gear, wherein protrusions protruding from the inner circumferential surface or the outer circumferential surface of the elastic support member are formed,
The second gear is rotated from the telescope member to absorb an impact load when a load equal to or greater than an impact load generated when a vehicle is impacted is released from engagement of the telescope member and the second gear. Of the steering column. delete The method according to claim 1,
Wherein the telescope member is provided with a first engaging portion formed to be recessed at an outer circumferential surface thereof, and the elastic supporting member is engaged with the first engaging portion. The method according to claim 1,
Wherein the telescope member is formed with a protruding portion protruding from an outer circumferential surface, and the elastic supporting member is coupled between the protruding portions. The method according to claim 1,
Wherein the second gear has a second engaging portion recessed from an inner circumferential surface thereof, and the elastic supporting member is engaged with the second engaging portion. delete The method according to claim 1,
Wherein the telescope member is stepped on both ends of the telescope member, and a large diameter portion having a larger diameter is formed, so that an area of the telescope member to be supported by the distance portion is widened. The method according to claim 1,
Wherein the distance portion is formed with a through hole through which the adjustment bolt passes, and the through hole is formed in an elliptical shape. The method according to claim 1,
Wherein the outer column is formed with slit portions in both axial directions at an incised portion between the distance portions. 10. The method of claim 9,
And the width of the slit portion is formed wider than the width of the first gear.
KR1020150113967A 2015-08-12 2015-08-12 Steering column for vehicle KR101724202B1 (en)

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KR1020150113967A KR101724202B1 (en) 2015-08-12 2015-08-12 Steering column for vehicle

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Application Number Priority Date Filing Date Title
KR1020150113967A KR101724202B1 (en) 2015-08-12 2015-08-12 Steering column for vehicle

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KR101724202B1 true KR101724202B1 (en) 2017-04-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230055548A1 (en) * 2020-02-25 2023-02-23 Mando Corporation Steering column for vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247798A (en) * 2009-04-20 2010-11-04 Nsk Ltd Position adjusting device for steering wheel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101205559B1 (en) * 2008-08-13 2012-11-27 주식회사 만도 Steering Column for Vehicle
KR101467073B1 (en) * 2013-01-08 2014-12-01 주식회사 만도 Steering column for vehicle
KR20150017917A (en) * 2013-08-08 2015-02-23 주식회사 만도 Steering Column for Vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247798A (en) * 2009-04-20 2010-11-04 Nsk Ltd Position adjusting device for steering wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230055548A1 (en) * 2020-02-25 2023-02-23 Mando Corporation Steering column for vehicle
US11753063B2 (en) * 2020-02-25 2023-09-12 Hl Mando Corporation Steering column for vehicle

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