KR101631210B1 - Steering column assembly for car - Google Patents

Steering column assembly for car Download PDF

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Publication number
KR101631210B1
KR101631210B1 KR1020140098563A KR20140098563A KR101631210B1 KR 101631210 B1 KR101631210 B1 KR 101631210B1 KR 1020140098563 A KR1020140098563 A KR 1020140098563A KR 20140098563 A KR20140098563 A KR 20140098563A KR 101631210 B1 KR101631210 B1 KR 101631210B1
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KR
South Korea
Prior art keywords
bracket
tilt
tilt bracket
slit
distance
Prior art date
Application number
KR1020140098563A
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Korean (ko)
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KR20160017199A (en
Inventor
홍성종
김영삼
황인선
Original Assignee
남양공업주식회사
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Priority to KR1020140098563A priority Critical patent/KR101631210B1/en
Publication of KR20160017199A publication Critical patent/KR20160017199A/en
Application granted granted Critical
Publication of KR101631210B1 publication Critical patent/KR101631210B1/en

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

Abstract

The present invention relates to a steering column apparatus for an automobile, including a distance bracket coupled to an outer circumferential surface of a tube into which a steering shaft is inserted and an adjust bolt penetrated therethrough; A tilt bracket coupled to both sides of the distance bracket and having an elongated hole for fastening the adjust bolt along the longitudinal direction; A mounting bracket to which the tilt bracket is fixed and which is mounted to a vehicle body; And a pressing member which is connected to the adjuster bolt and brings the tilt bracket in close contact with the distance bracket, wherein the tilt bracket includes a tilt bracket which is disposed at a position adjacent to the mounting bracket so as to form a constant fixing force when the pressing member is pressed, And a cutout slit which is cut out in a J-shape with one end longer than the other end along the edge of the long hole.
Accordingly, by adjusting the flexibility of the tilt bracket, the steering shaft can be effectively fixed or released with a small torque amount.

Description

[0001] The present invention relates to a steering column assembly for a car,

The present invention relates to a steering column apparatus for an automobile, and more particularly, to a steering column apparatus for an automobile, which can adjust the flexibility of a tilt bracket to rotate a tilt lever even with a small torque and can easily maintain and release a fixed state of tilt and telescopic .

The vehicle has a steering wheel adjustment device that can adjust the height of the steering wheel (steering wheel) and the distance between the front and rear of the steering wheel in accordance with the driver's physical condition and posture.

The steering wheel adjusting device includes a tilt adjusting device that can tilt the steering wheel by a predetermined angle after the driver releases the locked state by operating the lock lever and a tilt adjusting device that pulls or draws the steering wheel from the steering shaft, And a telescopic adjustment device capable of adjusting the distance between the two.

Below, a tilt and telescopic adjustment device capable of both tilt adjustment and telescopic adjustment will be described with reference to FIG.

1 is an exploded perspective view showing a conventional tilt and telescopic adjustment device.

Basically, the steering wheel 10 is connected to the front end of the steering shaft 12, and the steering shaft 12 is accommodated in the outer tube 14. At the rear end of the outer tube 14, the inner tube 16 is received and the inner tube 16 is drawn in and out of the outer tube 14.

The mounting bracket 20 is positioned above the outer tube 14 and a pair of tilt brackets 26 are provided on the underside to wrap the outer tube 14. The mounting bracket 20 is fixed to the vehicle body.

The distance bracket 22 is fixed to the outer tube 14 and is located on the opposite side of the mounting bracket 20 and a telescopic long hole 23 is formed so that the adjust bolt 24 is penetrated.

The tilt bracket 26 is secured to the mounting bracket 20 to wrap the outer tube 14. An elongated hole 27 is formed along the longitudinal direction of the tilt bracket 26 to guide the movement of the adjust bolt 24 by penetrating the adjust bolt 24.

The tilt fixed gear 28 is fixed to the outside of the tilt bracket 26 and an elongated hole 29 is formed corresponding to the position of the tilt elongated hole 27. And teeth are formed along the longitudinal direction.

The tilt movable gear 30 selectively meshes with the tilt fixed gear 28 and meshes therewith. A cam 34 is attached to the tilt movable gear 30 and a tilt lever 32 is connected to the cam 34. [

When the tilt lever 32 is rotated after designating the position such as tilting, pulling out and the like of the outer tube 14 with the above structure, the tilt movable gear 30 is rotated by the action of the cam 34, (28) and presses the tilt bracket (26). The tilt bracket 26 presses the distance bracket 22 to fix the position of the steering wheel 10.

However, since the conventional tilt and telescopic adjusting device increases the vertical drag on the distance bracket 22 by pressing and elastically deforming the tilt bracket 26 to fix the position of the steering wheel 10, There is a problem that it is difficult to elastically deform the tilt bracket 26 as it approaches the mounting bracket 20 to which the bracket 26 is fixed. In particular, when the tilt lever 32 is manually driven, it is more difficult for the user to operate the tilt lever 32 in such a situation.

KR 10-2012-0139898 A1 (Dec. 28, 2012)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a steering column apparatus for an automobile which is capable of adjusting the flexibility of a tilt bracket by forming a notched slit in a tilt bracket .

In order to solve the above problems, a steering column apparatus for an automobile according to the present invention includes a distance bracket coupled to an outer circumferential surface of a tube into which a steering shaft is inserted, A tilt bracket coupled to both sides of the distance bracket and having an elongated hole for fastening the adjust bolt along the longitudinal direction; A mounting bracket to which the tilt bracket is fixed and which is mounted to a vehicle body; And a pressing member which is connected to the adjuster bolt and brings the tilt bracket in close contact with the distance bracket, wherein the tilt bracket includes a tilt bracket which is disposed at a position adjacent to the mounting bracket so as to form a constant fixing force when the pressing member is pressed, And a cut-out slit which is cut out in a J-shape whose one end is longer than the other end along the edge of the long hole.

The steering column apparatus of an automobile according to the present invention can effectively fix or unlock the steering shaft even at a small torque amount by adjusting the flexibility of the tilt bracket due to the cutout slit.

1 is an exploded perspective view showing a conventional tilt and telescopic adjustment device.
2 is a perspective view showing a steering column apparatus for a vehicle according to the present invention.
Fig. 3 is an exploded perspective view of Fig.
Figures 4 and 5 show the embodiment of the notched slit

Hereinafter, a steering column apparatus for a vehicle according to the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of a steering column apparatus for a motor vehicle according to the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIGS. 4 and 5 are embodiments of cut slits .

A steering column apparatus for an automobile according to the present invention includes: a distance bracket coupled to an outer circumferential surface of a tube into which a steering shaft is inserted, the adjust bolt passing through; A tilt bracket coupled to both sides of the distance bracket and having an elongated hole for fastening the fastening bolt along the longitudinal direction; A mounting bracket fixed to one end of the tilt bracket and mounted to the vehicle body; And a pressing member which is connected to the adjuster bolt and closely contacts the tilt bracket with the distance bracket. The tilt bracket is cut in a J-shape having one end longer than the other end along the rim of the long hole at a position adjacent to the mounting bracket The tilt bracket includes a cutout slit and an extended cutout slit that is cut out from an end of a short formed portion of the cutout slit and is sloped away from the long hole toward the other end of the tilt bracket. A first region formed with a cutout slit; A second region in which an elongated hole, a cut slit and an extended cut slit are formed together; A third region in which a long hole and a notch slit are formed; And a fourth region where only the cut slit is formed.

Each component will be described in detail below.

The tube 100 is a steering shaft (not shown) accommodated therein, and is generally referred to as a steering column through the tube 100 and the steering shaft.

The distance bracket 110 is installed outside the tube 100, and can be installed on the upper or lower portion of the tube 100. A through hole 112 is formed in the distance bracket 110.

The adjust bolt (114) has a long columnar shape and is inserted through the through hole (112). The adjust bolt 114 is moved along the longitudinal direction of the elongated holes 113 and 142 through the elongated holes 133 and 142 to be described later.

The mounting bracket 120 is fixed to the vehicle body to support the tube 100.

The tilt bracket 130 is a component that is fixed to the mounting bracket 120 and surrounds the tube 100 and the distance bracket 110 as shown in FIGS.

Each of the tilt brackets 130 has a plate shape and is vertically fixed to the mounting bracket 120. The tilt brackets 130 abut against both sides of the distance bracket 110 so that the tilt lever 160 can be moved relative to the mounting bracket 120 So that the distance bracket 110 is elastically deformed. A long hole 133 is formed in the tilt bracket 130 along the longitudinal direction so that the adjust bolt 114 passes through the tilt bracket 130.

The notch slit 134 is formed in the tilt bracket 130. [ As shown in FIG. 3, the cut-out slit 134 is formed in a J-shape having one end longer than the other end, and the arc-shaped portion is arranged to surround the long hole 133. Accordingly, the notch slit 134 elastically deforms the tilt bracket 130 with a small force, thereby easily pushing the distance bracket 110. Specific details related thereto will be described later.

The pressing member is a component for fixing the position of the steering wheel by pressing the tilt bracket 130 to restrain the distance bracket 110, and includes a tilt fixing gear 140; A tilt movable gear 150; And a tilt lever 160.

The tilt fixed gear 140 is plate-shaped and fixed to the outer surface of the tilt bracket 130, and a plurality of teeth 141 are formed along the longitudinal direction. The teeth 141 are formed in two rows, and an elongated hole 142 is formed therebetween.

The tilt movable gear 150 is in the form of a plate and is located outside the tilt bracket 130 and fixed to one end of the adjust bolt 114. A plurality of teeth 151 are formed on the inner surface in two rows so that the tilt movable gear 150 is selectively engaged with the tilt fixed gear 140 according to the position of the adjust bolt 114.

The tilt lever 160 is located outside the tilt bracket 130 and fixed to the other end of the adjust bolt 114.

A cam 162 is provided between the tilt lever 160 and the tilt bracket 130 so that the cam 162 moves the tilt lever 160 away from the tilt bracket 130 in accordance with the rotation of the tilt lever 160 So that the position of the assort bolt 114 is moved. More specifically, the cam 162 is composed of an operation cam 162a and a fixed cam 162b. The operation cam 162a is fixed to the tilt lever 160, and the fixed cam 162b is fixed to the tilt bracket 130 . Accordingly, the actuating cam 162a is moved closer to or away from the fixed cam 162b in accordance with the rotation of the tilt lever 160, so that the adjuster bolt 114 is moved.

Hereinafter, the process of fixing the tube 100 will be briefly described.

When the tilt lever 160 is rotated in the locking direction, the operation cam 162a moves away from the fixed cam 162b and pushes the fixed cam 162b, so that the tilt bracket 130 is elastically deformed to press the distance bracket 110 At the same time, the adjust bolt 114 is moved from one side of the tilt bracket 130 to the other side, and the tilt movable gear 150 fixed to one end of the adjust bolt 114 is engaged with the tilt fixed gear 140 The position of the adjust bolt 114 is fixed.

Accordingly, the driver moves the steering wheel connected to the tube 100 upward and downward in a state where the tube 100 is unlocked by the operation of the tilt lever 160, places the steering wheel at a desired position, operates the tilt lever 160 again, The position of the steering wheel (not shown) can be fixed by fixing the steering wheel 100.

Meanwhile, the steering column apparatus for an automobile according to the present invention can adjust the flexibility of the tilt bracket 130 by the cutout slit 134, which will be described below.

The lower end of the tilt bracket 130 is fixed to the mounting bracket 120 so that the tilt bracket 130 is moved from the tilt bracket 130 to a position adjacent to the mounting bracket 120 at a position distant from the mounting bracket 120, So that it becomes difficult to constrain the distance bracket 110. The force required to press the tilt bracket 130 to elastically deform the tilt bracket 130 from a position away from the mounting bracket 120 to a position adjacent to the mounting bracket 120 It grows. 3, in order to lower the required deforming force, the tilt bracket 130 is provided with a plurality of tilting brackets 130, which are disposed in the vicinity of the long holes 133 adjacent to the mounting bracket 120, The cut slit 134 is formed.

The cutout slit 134 is formed in a J-shape in which a portion adjacent to the mounting bracket 120 is formed in a arc shape and encloses the elongated hole 133 and has one end longer than the other end. 4) of the tilt bracket 130. This is because the bent surface of the tilt bracket 130 is relatively in contact with the mounting bracket 120, And the required deformation force is high.

Accordingly, since the circumference of a part of the tilt bracket 130, preferably the vicinity of the long hole 133 adjacent to the mounting bracket 120, is divided by the present invention, when the tilt bracket 130 is pressed through the pressing member, The divided portions around the long hole 133 are elastically deformed, and the other portions are elastically deformed. Therefore, the required deformation force at the portion of the tilt bracket 130 adjacent to the mounting bracket 120 is lowered, so that a high-pressure effect is generated even with a small force or the same force on the pressing member.

Since the portion of the tilt bracket 130 adjacent to the mounting bracket 120 has a high required deformation force, a force (hereinafter referred to as a 'fixing force') for pressing and fixing the distance bracket 110, However, the cutout slit 134 of the present invention is advantageous in that the fixing force can be kept constant.

As shown in FIG. 4, the extended notched slit 135 is formed to be outwardly bent at a portion formed short in both ends of the cutout slit 134. The extended notched slit 135 can prevent a difference in required deformation force between the left and right sides of the long hole 133 of the tilt bracket 130 from being generated. In order to explain this, a tilting bracket 130 is divided into three regions: a first region Z1 in which a long hole 133 and a notch slit 134 are formed along the longitudinal direction; A second region Z2 in which the long hole 133, the cutout slit 134, and the extended cutout slit 135 are formed together; A third zone Z3 where the elongated hole 133 and the cutout slit 134 are formed; And a fourth region Z4 where only the cutout slit 134 is formed. Accordingly, the inclined protruding slit 135 increases the divided area between the long hole 133 and the cut slit 134 of the tilt bracket 130, so that the required deformation force of the second area Z2 is increased 1 region Z1. Since the third zone Z3 does not include the extended cutout slit 135, the required deformation force is increased beyond the second zone Z2. Finally, only the cutout slit 134 exists in the fourth zone Z4, 3 region (Z3). For reference, the above description of the increase in the required deformation force excludes the influence of the required deformation force due to the mounting bracket 120.

As a result, the extended notch slit 135 can prevent the difference in the required deformation force between the left and right sides of the long hole 133 of the tilt bracket 130 from being generated. By adjusting the tilt angle, Is lowered from the mounting bracket 120, the required deformation force is lowered, so that the amount of torque necessary for rotating the tilt lever 160 is lowered, that is, the tilt lever 160 is prevented from being rotated too easily. Therefore, the extended notch slit 135 is formed so as to keep the required torque amount constant even if the tilt lever 160 is rotated in any one of the first, second, third, and fourth zones Z1, Z2, Z3, and Z4 . As a result, the fixing force of the tilt bracket 130 is constant.

On the other hand, the cutout slit 134 may be formed with a beam adjustment slit 136. The beam adjustment slit 136 is formed when there is no extended cutout slit 135, as shown in FIG. 5 And is formed in an L shape at a position adjacent to the end portion of the cutout slit 134 that is relatively short. As a result, it is possible to prevent a difference in required deformation force between the left and right sides of the tilt bracket 130 from being generated like the extended notch slit 135.

100: tube 110: distance bracket
112: through hole 114:
120: mounting bracket 130: tilt bracket
133: long hole 134: cut slit
135: extended cutting slit 136: beam adjusting slit
140: tilt fixed gear 141: tooth
142: long hole 150: tilt movable gear
151: tooth 160: tilt lever
162: Cam 162a: Operation cam
162b: fixed cam

Claims (4)

A distance bracket coupled to an outer circumferential surface of the tube into which the steering shaft is inserted and having an escape bolt penetrated therethrough;
A tilt bracket having a plate shape formed by bending a side surface thereof and coupled to both sides of the distance bracket and having an elongated hole to which the adjust bolt is fastened along the longitudinal direction;
A mounting bracket fixed to one end of the tilt bracket and mounted to the vehicle body;
And a pressing member connected to the adjuster bolt to closely contact the tilt bracket with the distance bracket,
The other end of the tilt bracket is not fixed,
The tilt bracket is cut out in a J-shape having one end longer than the other end along the rim of the long hole at a position adjacent to the mounting bracket, and the other end of the tilt bracket is cut so as to be adjacent to the bent side of the tilt bracket And an extended cutout slit cut out from an end of a short formed portion of the cutout slit and being sloped so as to be distanced from the long hole toward the other end of the tilt bracket,
Wherein the tilt bracket includes: a first region along the longitudinal direction, the elongated hole and the cut slit being formed together; A second region in which the elongated hole, the notched slit, and the extended notched slit are formed together; A third region in which the elongated hole and the cutout slit are formed; And a fourth region where only the notched slit is formed. delete delete delete
KR1020140098563A 2014-07-31 2014-07-31 Steering column assembly for car KR101631210B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140098563A KR101631210B1 (en) 2014-07-31 2014-07-31 Steering column assembly for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140098563A KR101631210B1 (en) 2014-07-31 2014-07-31 Steering column assembly for car

Publications (2)

Publication Number Publication Date
KR20160017199A KR20160017199A (en) 2016-02-16
KR101631210B1 true KR101631210B1 (en) 2016-06-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6621359B2 (en) 2016-03-31 2019-12-18 富士機工株式会社 Steering column device
JP6659428B2 (en) * 2016-03-31 2020-03-04 富士機工株式会社 Steering column device
KR102464179B1 (en) * 2018-04-26 2022-11-08 남양넥스모 주식회사 steering column

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101032983B1 (en) * 2007-04-27 2011-05-09 주식회사 만도 Steering Column for Automotive Vehicle
KR101267712B1 (en) * 2009-01-16 2013-05-23 주식회사 만도 Steering Column for Vehicle
KR20120139898A (en) 2011-06-20 2012-12-28 주식회사 만도 Tilt apparatus of steering column and steering apparatus of vehicle using the same

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