KR101593600B1 - Steering column assembly for car - Google Patents

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 to closely contact the tilt bracket with the distance bracket, wherein the tilt bracket includes a tilt bracket for holding the tilt bracket from an end of the long hole adjacent to the mounting bracket, And includes cutout slits whose both ends are formed along both side surfaces of the long hole.
Accordingly, by adjusting the flexibility of the tilt bracket, the steering shaft can be efficiently fixed even with a small force.

Description

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

[0001] The present invention relates to a steering column apparatus for an automobile, and more particularly, to a steering column apparatus for an automobile, which facilitates elastic displacement of a tilt bracket and can rotate a tilt lever with a small torque to easily maintain and release a fixed state of tilt and telescopic To a column device.

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 in which the flexibility of a tilt bracket can be adjusted by forming a notch 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 to closely contact the tilt bracket with the distance bracket, wherein the tilt bracket includes a tilt bracket for holding the tilt bracket from an end of the long hole adjacent to the mounting bracket, And both end portions include cutout slits formed along both side surfaces of the long hole.

The steering column device of the automobile according to the present invention may have an elongated hole and a notched slit formed therein to adjust the flexibility of the tilt bracket so that the steering shaft can be efficiently fixed or released even with a small force.

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.
4 is a side view of the tilt bracket
FIG. 5 is a cross-

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.

The present invention relates to a steering column apparatus for an automobile, and more particularly, to a steering column apparatus for an automobile according to the present invention. Fig. 3 is an exploded perspective view of Fig. 2, Fig. 4 is a side view of a tilt bracket, This is an embodiment of a slit.

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 connected to the adjuster bracket and closely contacting the tilting bracket with the distance bracket. The tilting bracket is extended from the end of the long hole adjacent to the mounting bracket and is cut into an arc shape, and both ends are positioned on both sides of the long hole A beam adjusting slit which is cut out from both ends of the cut slit and which is sloped so as to be inclined away from the long hole as it gets closer to the other end of the cut slit and a stopper protruding from the cut slit, Wherein the tilt bracket has a first region along the longitudinal direction, in which a long hole and a cut slit are formed together; A second region in which an elongated hole and a beam adjusting element slit are formed together; And a third region where only long holes are 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 long holes 135 and 142 through the long holes 135 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 bracket 130 abuts against both sides of the distance bracket 110 and is elastically deformed by a pressing member to be described later to press the distance bracket 110. [ In the tilt bracket 130, an elongated hole 135 is formed along the longitudinal direction so that the adjustable bolt 114 is penetrated.

A cutout slit 136 is formed on both sides of the elongated hole 135 formed in the tilt bracket 130 and is connected to the end of the elongated hole 135 adjacent to the mounting bracket 120. A stopper 138 is formed at the end of the long hole 135.

The long hole 135 is a section through which the assort bolt 114 passes and moves up and down.

The cutout slit 136 is formed to extend from both ends of the end of the elongated hole 135 of the tilt bracket 130, so that the flexibility of the tilt bracket 130 can be adjusted.

The stopper 138 protrudes from the end of the elongated hole 135 of the tilt bracket 130 as shown in FIG. 4 to restrict movement of the adjust bolt 114. That is, according to the present invention, since the long hole 135 of the tilt bracket 130 is connected to the cut slit 136, the adjust bolt 114 descended along the longitudinal direction of the long hole 135 is cut into the cut slit 136 The stopper 138 protrudes from the elongated hole 135 to prevent the above-described phenomenon. The stopper 138 also determines the position of the adjust bolt 114 during the tilting operation and prevents the deformation of the divided portion 134 of the tilt bracket 130 due to the cutout slit 136. [

Since the one end of the tilt bracket 130 is fixed to the mounting bracket 120, if the tilt bracket 130 is not provided, the distance bracket 110 moves toward the portion adjacent to the mounting bracket 120, It becomes difficult to bind. That is, the force required to press the tilt bracket 130 to elastically deform the tilt bracket 130 (hereinafter, referred to as a "required deflection force") becomes larger toward the portion of the tilt bracket 130 adjacent to the mounting bracket 120. In order to reduce the required deformation force, the present invention is characterized in that a notched slit 136 is formed in a tilt bracket 130 which receives the greatest force by rotation of the tilt lever 160, as shown in FIG. Accordingly, since the tilt bracket 130 is partly divided, preferably around the elongated hole 135, when the tilt bracket 130 is pressed through the pressing member, The divided portion 134 is elastically deformed, and the other portions are elastically deformed. Therefore, there is an advantage that a high-pressure effect is generated even with a relatively small force or the same force. In addition, since the elongated hole 135 is formed so as to extend to the notched slit 136, the above effect can be maximized.

Meanwhile, the present invention is an embodiment of the cutout slit 136, and as shown in FIG. 5, a beam adjustment slit 137 may be further provided at one end of the cutout slit 136. The beam adjusting slit 137 may be formed in a shape away from the elongated hole 135, that is, inclined to the outside. The end of the beam adjustment slit 137 is positioned so as not to exceed the length of the elongated hole 135. Accordingly, the tilt bracket 130 includes a first region Z1 in which a long hole 135 and a notch slit 136 are formed along the longitudinal direction as shown in FIG. 5 (b); A second zone Z2 in which the long hole 135 and the beam adjusting slit 137 are formed together; And a third zone Z3 where only the long holes 135 are formed.

Accordingly, in the embodiment, the width of the divided portion 134 between the long hole 135 and the notch slit 136 of the tilt bracket 130 is widened so that the required deformation force of the second area Z2 is larger than the required deformation force of the first area Z1 ). ≪ / RTI > Since no additional slit is formed in the third zone Z3, the required deformation force is increased more than the second zone Z2. This is because the required deformation force is lowered as the position of the adjust bolt 114 is further away from the portion adjacent to the mounting bracket 120 so that the amount of torque required for rotating the tilt lever 160 is reduced, It is prevented from being rotated too easily. Therefore, the embodiment has an advantage that the required torque can be kept constant even if the tilt lever 160 is rotated in any one of the first, second, and third zones Z1, Z2, and Z3.

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 in the axial direction 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 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.

100: tube 110: distance bracket
112: through hole 114:
120: mounting bracket 130: tilt bracket
135: long hole 136: cut slit
137: beam adjustment slit 138: stopper
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 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 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 tilt bracket includes a notch slit extending from an end of the elongated hole adjacent to the mounting bracket and being cut in an arc shape so that both ends thereof are positioned on both side surfaces of the elongated hole and a cutout slit cut from both ends of the notch slit, And a stopper protruding from a portion of the notched slit leading to the long hole, wherein the stop slit is formed to be sloped away from the long hole,
Wherein the tilt bracket has a first region along the longitudinal direction and in which the elongated hole and the cut slit are formed together; A second region in which the elongated hole and the beam adjusting slit are formed together; And a third region having only the elongated hole formed therein.
delete delete delete

Images