KR20180088250A - Tilt fixing apparatus of steering column for vehicle - Google Patents

Abstract

According to one embodiment of the present invention, provided is a tilt fixing apparatus of a vehicle steering column, which comprises: a tilt bracket having a first tilt hole, wherein a first thread is formed on a first side surface of the first tilt hole; a driving gear having a first insertion hole and having a second thread to enable the same to be engaged and rotated with the first thread; a fixing member having a second insertion hole and flowing along the second side surface of the first tilt hole facing the first side surface; a stopper having a third insertion hole and coupled to the driving gear and the fixing member; and a lever bolt installed by passing through the tilt bracket, the driving gear, the fixing member, and the stopper.

Description

Technical Field [0001] The present invention relates to a tilt fixing apparatus for a steering column for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering column for a vehicle, and more particularly to a tilt fixing device for a steering column for a vehicle.

BACKGROUND ART [0002] In recent automobiles, a steering apparatus having a telescope or a tilt function is provided for the convenience of the driver. The telescope device is a device that allows the steering column to extend and contract in the axial direction, and the tilting device is a device for adjusting the angle of the steering column.

1 to 3 are perspective views showing a conventional steering apparatus for a vehicle.

1 to 3, a conventional steering apparatus includes a steering shaft 15, a steering column 10 into which a steering shaft 15 is inserted, a mounting bracket (not shown) for fixing the steering column 10 to the vehicle body A tilt bracket 30 interposed between the steering column 10 and the mount bracket 40 to enable the tilting operation of the steering column 10, a stationary gear 50 tightly fixed to the tilt bracket 30, A movable gear 60 engaged with the fixed gear, a lever bolt 70 provided through the tilt bracket 30, and a lock unit 80 coupled to an end of the lever bolt 70.

This tilting operation of the steering apparatus is applied by tightening and releasing the adjustment lever 90. When the adjustment lever 90 is tightened, the tightening force of the lock unit 80 coupled to the end of the lever bolt 70, 60 are engaged with the fixed gear 50 so that the tilting operation is not performed. Conversely, when the adjusting lever 90 is released, the engagement state between the fixed gear 50 and the movable gear 60 is released and the tilting operation becomes possible .

However, the steering column of the conventional automobile has a problem in that the lever bolt 70 is not locked due to the gear teeth of the movable gear 60 engaged with the mountain of the fixed gear 50 during the tilting operation. In this case, the driver's operation feeling of the lever is lowered, and if the lever or the gear is severely damaged, the driver may feel uncomfortable.

Also, since the steering column is not stably fixed due to the engagement of the gear teeth, when the automobile collides, the steering column pops up in the tilt direction, and safety of the driver is not ensured.

Korean Patent Laid-Open Publication No. 10-2016-0139160 (published on 2016.12.07)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a steering column tilting apparatus for a vehicle which can prevent a lever bolt from flowing in a tilting direction of a steering column when a driver tilts the steering wheel.

Another object of the present invention is to provide a tilt lock device for a steering column for a vehicle, which can stably lock the steering column even if a latching phenomenon occurs between the fixed gear and the movable gear when the driver tilts.

Other features and advantages of the invention will be set forth in the description which follows, or may be obvious to those skilled in the art from the description and the claims.

According to a first aspect of the present invention, there is provided a tilt fixing apparatus for a steering column for a vehicle, comprising: a tilt bracket having a first tilt hole formed therein and having a first screw thread formed on a first side surface of the first tilt hole; And a second threaded portion formed on the second side surface of the first tilt hole, the second insertion hole being formed on the second side surface of the first tilt hole, A stopper formed with a third insertion hole and coupled with the movable gear and the fixing member, and a lever bolt provided through the tilt bracket, the movable gear, the fixing member, and the stopper.

In the embodiment of the present invention, the movable gear is provided with a fixing member on one side and a stopper on the other side.

In the embodiment of the present invention, the movable gear is characterized in that the first engaging hole is formed on the same circumference at the center of the first inserting hole.

In the embodiment of the present invention, the fixing member is characterized in that the second engaging hole is formed on the same circumference at the center of the second inserting hole.

In the embodiment of the present invention, the stopper includes a coupling protrusion protruded in the direction of the movable gear, and the coupling protrusion is coupled to the first coupling hole.

In the embodiment of the present invention, the stopper includes an engaging projection protruding in the direction of the movable gear, and the engaging projection is engaged with the second engaging hole.

According to another aspect of the present invention, there is provided a steering column tilting apparatus for a vehicle, comprising: a tilt bracket having a first tilt hole; a first screw thread formed on a first side of the first tilt hole; A movable gear having a first threaded portion formed with a first threaded portion and a second threaded portion formed so as to rotate in engagement with the first threaded portion and a second inserted hole formed in the first inserted hole, A stopper formed with a third insertion hole and engaged with the movable gear and the fixing member, and a lever bolt penetrating through the tilt bracket, the movable gear, the fixing member, and the stopper, .

In the embodiment of the present invention, the movable gear is provided with a fixing member on one side and a stopper on the other side.

In the embodiment of the present invention, the movable gear is characterized in that the first engaging hole is formed on the same circumference at the center of the first inserting hole.

In the embodiment of the present invention, the fixing member is characterized in that the second engaging hole is formed on the same circumference at the center of the second inserting hole.

In the embodiment of the present invention, the stopper includes a coupling protrusion protruded in the direction of the movable gear, and the coupling protrusion is coupled to the first coupling hole.

In the embodiment of the present invention, the stopper includes an engaging projection protruding in the direction of the movable gear, and the engaging projection is engaged with the second engaging hole.

According to a third aspect of the present invention, there is provided a tilt fixing apparatus for a steering column for a vehicle, comprising: a tilt bracket having a first tilt hole and a first screw thread formed on a first side surface of the first tilt hole; A movable bolt formed with a first insertion hole and formed with a second screw thread so as to rotate in engagement with the first screw thread; a lever bolt extending through the tilt bracket and the movable gear and integrally formed with the fixing portion on the outer surface; 3 insertion holes are formed, and the stopper is engaged with the movable gear and the fixed portion.

In the embodiment of the present invention, the movable gear is characterized in that the first engaging hole is formed on the same circumference at the center of the first inserting hole.

In the embodiment of the present invention, the lever bolt is integrally formed with the fixing portion formed with the third engaging hole on the same circumference as the first engaging hole.

In an embodiment of the present invention, the stopper includes an engaging projection protruding in the direction of the movable gear, and the engaging projection is coupled to the second engaging hole and the third engaging hole.

The tilting apparatus for a steering column of a vehicle according to an embodiment of the present invention can prevent the tilting phenomenon between the fixed gear and the movable gear by the movable gear rotating along the fixed gear.

In addition, since a latching phenomenon is prevented between the fixed gear and the movable gear, the driver can be provided with a stable lever operation feeling, and a phenomenon that the steering column pops up due to an external impact or the like can be prevented, .

In addition, other features and advantages of the present invention may be newly understood through embodiments of the present invention.

1 is a perspective view showing a general steering system for a vehicle.
2 is a perspective view showing a tilting apparatus for a steering column for a vehicle according to the prior art.
3 is a cross-sectional view showing a conventional tilting device for a steering column for a vehicle.
4 is a perspective view illustrating a tilt fixing apparatus for a steering column for a vehicle according to a first embodiment of the present invention.
5 is an exploded perspective view showing a steering column tilting apparatus for a vehicle according to a first embodiment of the present invention.
6 is a perspective view illustrating a tilt fixing apparatus for a steering column for a vehicle according to a second embodiment of the present invention.
7 is a perspective view showing a tilt fixing apparatus for a steering column for a vehicle according to a third embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

If any part is referred to as being "on" another part, it may be directly on the other part or may be accompanied by another part therebetween. In contrast, when a section is referred to as being "directly above" another section, no other section is involved.

The terms first, second and third, etc. are used to describe various portions, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified and that the presence or absence of other features, regions, integers, steps, operations, elements, and / It does not exclude addition.

Terms indicating relative space such as "below "," above ", and the like may be used to more easily describe the relationship to other portions of a portion shown in the figures. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain portions that are described as being "below" other portions are described as being "above " other portions. Thus, an exemplary term "below" includes both up and down directions. The device can be rotated by 90 degrees or rotated at different angles, and terms indicating relative space are interpreted accordingly.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 4 is a perspective view showing a tilt fixing apparatus for a steering column for a vehicle according to a first embodiment of the present invention, and FIG. 5 is an exploded perspective view showing a tilt fixing apparatus for a steering column for a vehicle according to a first embodiment of the present invention .

4 and 5, the steering column tilting apparatus for a vehicle according to the first embodiment of the present invention includes a tilt bracket 100, a movable gear 200, a stopper 300, a fixing member 400, And a bolt 500.

The first tilt hole 110 through which the lever bolt 500 passes is formed in the tilt bracket 100. Here, the first tilt hole 110 is formed in a square shape, and the first thread 112 is formed on the first side surface of the first tilt hole 110. Also, the first tilt hole 110 is formed long in the tilting direction of the steering column, and the first screw thread 112 formed on the first side is formed long in the tilting direction of the steering column.

A first insertion hole 220 is formed at the center of the movable gear 200 and a second thread 210 is formed to rotate in engagement with the first thread 112. Specifically, the movable gear 200 has a circular cross-section so as to be engaged with the first thread 112 and to be rotatable in the tilt direction, and a second thread 210 is formed on the outer surface. A first insertion hole 220 is formed at the center of the movable gear 200 so that the lever bolt 500 passes through the first insertion hole 220. The first coupling hole 230 is formed on the same circumference at the center of the first insertion hole 220, . Here, the first coupling holes 230 are formed at the same distance from the center of the first insertion holes 220, and the interval between the first coupling holes 230 may be constant.

Further, a fixing member 400 may be disposed on one side of the movable gear 200, and a stopper 300 may be disposed on the other side.

A second insertion hole 420 is formed at the center of the fixing member 400 and flows along the second side of the first tilt hole 110 facing the first side. Specifically, a second insertion hole 420 is formed at the center of the fixing member 400 so as to penetrate the lever bolt 500, and a second coupling hole 430 Is formed. Here, the second engagement holes 430 may be formed at the same distance from the center of the second insertion holes 420, and the interval between the second engagement holes 430 may be constant. Here, the second coupling hole 430 is equal to the number of the first coupling holes 230, and may be formed at the same position as the first coupling hole 230.

A third insertion hole 320 is formed at the center of the stopper 300 and is coupled to the movable gear 200 and the fixing member 400. Specifically, the stopper 300 has a third insertion hole 320 formed at the center thereof so as to penetrate the lever bolt 500, and a coupling protrusion (not shown) coupled to the first coupling hole 230 and the second coupling hole 430 310 are formed. When the adjusting lever is locked, the first engaging hole 230 of the movable gear 200 and the second engaging hole 340 of the fixing member 400 are engaged with each other, (Not shown).

Herein, the number of the coupling protrusions 310 is equal to the number of the first coupling holes 230 and the second coupling holes 430, and is equal to the position where the first coupling hole 230 and the second coupling hole 430 are disposed . Accordingly, the engaging protrusion 310 of the stopper 300 can be inserted into the first engaging hole 230 and the second engaging hole 430 at any position where the movable gear 200 is rotated and stopped.

The lever bolt 500 is inserted into the first tilt hole 110 of the tilt bracket 100, the first insertion hole 220 of the movable gear 200, the second insertion hole 420 of the fixing member 400, 300 through the third insertion hole 320. [

One end of the lever bolt 500 protrudes to the outside of the one-side tilt bracket 100, and a lock unit 800 is coupled to an end of the protruded lever bolt 500. Here, the lock unit 800 may include a lock nut, and a bearing and a washer may be interposed between the movable gear 200 and the lock nut. At this time, the lever bolt 500 may be formed with threads so that the lock nut is engaged.

The other end of the lever bolt 500 may be provided with a head having a diameter larger than the diameter of the lever bolt 500, and the head may be coupled to the control lever by a cam unit or the like.

The operation of the tilt fixing apparatus for a steering column for a vehicle constructed as described above will be described below.

When the lever bolt 500 is rotated in one direction by the operation of the control lever and the engagement state with the lock nut is weakened, the movable gear 200 and the stopper 300 are separated from the fixing member 400, So that the driver can perform the tilting operation of the steering column. At this time, the movable gear 200 rotates while engaging with the first thread 112 of the tilt bracket 100 according to the operation of the driver.

Conversely, the driver must convert the tiltable state to the tilt lock state after adjusting the angle of the steering column to match his / her body shape. When the lever bolt 500 is rotated in the opposite direction by the operation of the adjusting lever, the engagement state between the lever bolt 500 and the lock nut is strengthened, and the movable gear 200 and the stopper 300 are fixed to the fixing member 400, Lt; / RTI > That is, the engagement protrusion 310 of the stopper 300 is engaged with the first engagement hole 230 of the movable gear 200 and the second engagement hole 430 of the fixed member 400, It can no longer rotate and become fixed.

However, when the tilt lock state is established, the first thread 112 of the tilt bracket 100 and the second thread 210 of the movable gear 200 are engaged with each other. (210) is engaged with the first thread (112) of the tilt bracket (100) and rotated to prevent such a tooth catching phenomenon.

As described above, according to the embodiment of the present invention, since the first thread 112 of the tilt bracket 100 and the second thread 210 of the movable gear 200 are prevented from being engaged with each other, Further, it is possible to prevent a phenomenon that the steering column pops up due to an external impact or the like, thereby securing the safety of the driver.

6 is a perspective view illustrating a tilt fixing apparatus for a steering column for a vehicle according to a second embodiment of the present invention.

Referring to FIG. 6, the steering column tilting apparatus for a vehicle according to the second embodiment of the present invention includes a tilt bracket 100, a movable gear 200, a stopper 300, a fixing member 400, a lever bolt 500 And a gear unit 700. [0033] The structure of the movable gear 200, the stopper 300, the fixing member 400 and the lever bolt 500 is the same as or similar to that of the tilting apparatus for a steering column for a vehicle of the first embodiment, and a detailed description thereof will be omitted.

The first tilt hole 110 through which the lever bolt 500 passes is formed in the tilt bracket 100 applied to the tilt fixture of the steering column for a vehicle according to the second embodiment. Here, the first tilt hole 110 is formed in a rectangular shape and is formed long in the tilting direction of the steering column.

The gear portion 700 is formed with a first screw thread and is press-fitted or assembled into the first side surface of the first tilt hole 110. Here, the first side is the tilting direction of the steering column, and the gear portion 700 is press-fitted or assembled in the tilting direction of the steering column.

A second thread 210 is formed on the movable gear 200 to rotate with the first thread 112 and a first insertion hole 220 is formed at the center. The movable gear 200 is formed with a first coupling hole 230 on the same circumference at the center of the first insertion hole 220.

The fixing member 400 flows along the second side of the first tilt hole 110 facing the first side. A second insertion hole 420 is formed at the center of the fixing member 400 and a second coupling hole 430 is formed on the same circumference at the center of the second insertion hole 420.

A third insertion hole 320 is formed at the center of the stopper 300 and is engaged with the first engagement hole 230 of the movable gear 200 and the second engagement hole 420 of the fixation member 400, (310) is formed.

The lever bolt 500 is inserted into the first tilt hole 110 of the tilt bracket 100, the first insertion hole 220 of the movable gear 200, the second insertion hole 420 of the fixing member 400, 300 through the third insertion hole 320. [

7 is a perspective view showing a tilt fixing apparatus for a steering column for a vehicle according to a third embodiment of the present invention.

7, the steering column tilting apparatus for a vehicle according to the third embodiment of the present invention includes a tilt bracket 100, a movable gear 200, a stopper 300, and a lever bolt 500 . At this time, the configurations of the tilt bracket 100, the movable gear 200, and the stopper 300 are the same as or similar to those of the tilting apparatus for a steering column for a vehicle of the first embodiment, and a detailed description thereof will be omitted.

The tilt bracket 100 applied to the steering column tilting apparatus for a vehicle according to the third embodiment has a rectangular first tilt hole 110 through which the lever bolt 500 passes and the first tilt hole 110 A first screw thread 112 is formed on one side surface.

A second thread 210 is formed on the movable gear 200 to rotate with the first thread 112 and a first insertion hole 220 is formed at the center. The movable gear 200 is formed with a first coupling hole 230 on the same circumference at the center of the first insertion hole 220.

The lever bolt 500 is installed to penetrate through the first tilt hole 110 of the tilt bracket 100 and the first insertion hole 220 of the movable gear 200 and the fixing portion 600 is integrally formed . Here, the fixing portion 600 has a third coupling hole 610 formed on the same circumference as the first coupling hole 230.

A third insertion hole 320 is formed at the center of the stopper 300 and is engaged with the first engaging hole 220 of the movable gear 200 and the third engaging hole 610 of the securing portion 600, (310) is formed in the direction of the movable gear (200).

As described above, according to the present invention, it is possible to realize a tilt fixing apparatus for a steering column for a vehicle.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

100: tilt bracket 110: first tilt hole
112: first thread 200: movable gear
210: second thread 220: first insertion hole
230: first coupling hole 300: stopper
310: coupling protrusion 320: third insertion hole
400: fixing member 420: second insertion hole
430: second coupling hole 500: lever bolt
600: fixing part 700: gear part
800: Locking unit

Claims (16)

A tilt bracket in which a first tilt hole is formed and a first screw thread is formed on a first side surface of the first tilt hole;
A movable gear in which a first insertion hole is formed and in which a second screw thread is formed to rotate in engagement with the first screw thread;
A fixing member formed with a second insertion hole and supported by a second side surface of the first tilt hole facing the first side surface;
A stopper formed with a third insertion hole and engaged with the movable gear and the fixed member; And
And a lever bolt installed through the tilt bracket, the movable gear, the fixing member, and the stopper. The method according to claim 1,
Wherein the fixed member is disposed on one side of the movable gear, and the stopper is disposed on the other side of the movable gear. 2. The automatic transmission according to claim 1,
And a first coupling hole is formed on the same circumference at the center of the first insertion hole. The apparatus according to claim 1,
And a second coupling hole is formed on the same circumference at the center of the second insertion hole. The apparatus of claim 3,
And a coupling protrusion protruded in a direction of the movable gear, wherein the coupling protrusion is coupled to the first coupling hole. The apparatus according to claim 4,
And a coupling protrusion protruded in a direction of the movable gear, wherein the coupling protrusion is coupled to the second coupling hole. A tilt bracket in which a first tilt hole is formed;
A gear portion formed with a first thread and press-fitted or assembled to the first side surface of the first tilt hole;
A movable gear in which a first insertion hole is formed and in which a second screw thread is formed to rotate in engagement with the first screw thread;
A fixing member having a second insertion hole formed therein and flowing along a second side surface of the first tilt hole facing the first side surface;
A stopper formed with a third insertion hole and engaged with the movable gear and the fixed member; And
And a lever bolt installed through the tilt bracket, the movable gear, the fixing member, and the stopper. 8. The automatic transmission according to claim 7,
Wherein the fixing member is disposed on one side and the stopper is disposed on the other side. 8. The automatic transmission according to claim 7,
And a first coupling hole is formed on the same circumference at the center of the first insertion hole. 8. The apparatus according to claim 7,
And a second coupling hole is formed on the same circumference at the center of the second insertion hole. 8. The apparatus according to claim 7,
And a coupling protrusion protruded in a direction of the movable gear, wherein the coupling protrusion is coupled to the first coupling hole. 9. The apparatus according to claim 8,
And a coupling protrusion protruded in a direction of the movable gear, wherein the coupling protrusion is coupled to the second coupling hole. A tilt bracket in which a first tilt hole is formed and a first screw thread is formed on a first side surface of the first tilt hole;
A movable gear in which a first insertion hole is formed and in which a second screw thread is formed to rotate in engagement with the first screw thread;
A lever bolt extending through the tilt bracket and the movable gear, the lever bolt integrally formed with the outer surface thereof; And
And a stopper formed with a third insertion hole and engaged with the movable gear and the fixed portion. 14. The automatic transmission according to claim 13,
And a first coupling hole is formed on the same circumference at the center of the first insertion hole. 14. The lever bolt according to claim 13,
And a fixing part having a third coupling hole formed on the same circumference as the first coupling hole is integrally formed. 14. The vehicle steering column according to claim 13, wherein the stopper includes an engaging projection protruding in the direction of the movable gear, and the engaging projection is engaged with the second engaging hole and the third engaging hole. Tilt fixture.

Images