KR101277655B1 - Push-Pull type tilt lever device for steering system in vehicle - Google Patents

Abstract

According to the present invention, the tilt lever is disposed outside the collision area to prevent the body damage of the knee area in the event of a collision of the vehicle, and the push-pull type has a simple structure, so that the operation of the link by the three-link is excellent. The present invention relates to a push-pull tilt lever device for a vehicle steering device that is not limited by an installation space.
The configuration of the present invention is a binding port that is detachably coupled to a portion of the outer circumferential surface of the steering column, the handle portion is coupled to the sliding movement before and after the manual or electric method by means of a portion or the outer circumferential surface of the binding sphere and the user can grip the user is formed And a lever member having an end portion bent toward the steering column side, and a link mechanism connected to an end of the lever member and configured of a plurality of links to transmit rotational force to the tilt bolt side when the lever member moves.

Description

Push-pull type tilt lever device for steering system in vehicle

The present invention relates to a push-pull type tilt lever device for a vehicle steering apparatus, and in particular, a push-pull lever member is slidably moved forward and backward along a guide rail and transmits a moving force using a plurality of links. In addition, the present invention relates to a push-pull type tilt lever device for a vehicle steering device whose structure is improved to improve the feeling of operation and improve the driver's knee injury.

In general, a power steering device that generates steering force of a vehicle utilizes power to enable quick steering while lightly and smoothly operating a steering wheel.

In addition, the steering device has a tilt structure for tilting the steering wheel so that the driver can adjust the position of the steering wheel according to his or her body shape for more comfortable driving operation on the steering column for convenience functions. It will be equipped with a telescopic structure that can adjust the position of the steering wheel with respect to the axial direction of the steering column.

This convenience function implementation is typically implemented using a tilt lever device mounted to the underside of the steering column, i.e., the distance bracket is positioned inward of the tilt bracket surrounding the steering column and tilted toward the tilt bracket from the side of the tilt bracket. The tilt lever is coupled via a bolt, and as the tilt lever is operated, the contact force between the tilt bracket and the distance bracket is released or restrained by moving the position of the cam, thereby realizing tilt and telescopic operation.

Such a convenience device must meet the regulations on knee injuries through tilt levers installed on the side of the steering column when the driver's knee is moved toward the steering column in the event of a vehicle collision in accordance with the safety regulations of the vehicle. In case of assessing the vehicle's collision product quality, the knee injury value due to the impulse of the knee and rigid body should be eliminated. If the value is high, it will be a deduction factor and cause deterioration of collision product quality.

However, the tilt lever that implements the operation of such a convenient device is generally unsafe structure from knee injury during collision due to the presence of the tilt lever portion exposed from the steering column even when wrapped around the steering column due to the characteristics of the steering column. There is a vulnerability.

In addition, since the tilt lever is usually made of steel and is installed at the lower side of the steering column, the tilt lever also has a vulnerability to act as a deduction target as a concentrated load inducing structure when calculating knee injury according to EURO NCAP.

In addition, since the tilt lever is operated in a manner of rotating about the hinge axis, the tilt angle is limited within about 40 ° due to the interference of the crash pad lower panel during the tilt lever operation (rotation). In addition, due to the rotation angle of the tilt lever is limited as a factor that reduces the emotional quality during operation.

In addition, since the tilt lever is installed at the lower end side of the steering column, it is difficult to secure visibility during operation, and the operation posture is also disadvantageous, which serves as another factor of lowering the quality of emotion.

Conventional prior art for overcoming this is disclosed in the Republic of Korea Patent Publication No. 10-2009-8562 and shown in Figure 1, inclined the steering wheel and telescopic function that can reduce or increase the length of the steering column (1) To implement the tilt function, a steering device having a tilt lever device 4 mounted to the side of the tilt bracket 2 surrounding the steering column 1 while being engaged with the distance bracket 3 to which the tilt bolt 20 is fastened, The tilt lever device 4 has a tilt lever 13 positioned in the axial direction of the steering column 1 at the upper end side of the tilt bracket 2 surrounding the steering column 1. ) Is mounted to pull or push in the axial direction of the steering column 1 to implement telescopic and tilt functions.

This tilt lever device (4) is located to the side of the tilt bracket (2) surrounding the steering column (1), through the axial pressing force to the steering column (1) to the distance bracket (3) coupled to the tilt bolt (20) Guide bracket (5) is pushed to generate a fixing force is coupled.

In addition, the guide bracket 5 is formed with a flat cam position plate 6 to be in close contact with the side of the tilt bracket (2) surrounding the steering column (1), the side of the cam position plate (6) A cam coupling end 7 having a cam moving step jaw having a stepped jaw formed in multiple stages is formed, and the upper end portion of the cam position plate 6 is bent at a right angle and is guided through the longitudinal direction of the guide channel 8a. It is provided with the flow restriction partition 8 which formed ().

In addition, the tilt lever device 4 is mechanically coupled to the guide bracket 5 so that the cam 9 can be rotated and axially moved to form a fixed force between the distance bracket 3 and the steering column 1. Cam is coupled is configured to be coupled to push the guide bracket (5) in the axial direction.

Here, the cam 9 is a cam body 10 coupled to be rotatable through the tilt bolt 20, a cam gear 11 formed on an outer circumferential surface of the cam body 10 and receiving rotational force from the outside, and the The cam positioner 12 protrudes from one side of the cam body 10.

However, the above-described prior art has a structure that transmits torque through the rack gear and the spur gear to the operating force of the tilt lever, not only the operation feeling is poor due to the characteristics of the gear coupling structure, but also the position of the lever close to the cam. Since it can only be fixed, there are installation limitations that cannot be implemented structurally when located close to the center axis of the steering column.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a push-pull with a simple pull-out structure and a tilt lever out of a collision area to prevent body damage to a knee portion during a vehicle crash. It is to provide a push-pull type tilt lever device for a vehicle steering device, which is composed of a type, which has excellent operation feeling and is not limited by an installation space.

The present invention for achieving the above object and the binding sphere is detachably coupled to the steering column,

A lever member coupled to a part of the outer circumferential surface of the binding sphere so as to be slidably moved forward and rearward, the handle being gripped by the user, and the end of which is bent toward the steering column;

It is connected to the end of the lever member and consists of a plurality of links, characterized in that consisting of a link mechanism for transmitting the rotational force to the tilt bolt side when moving the lever member.

The link mechanism has a connecting hole which is pin-connected with an end of the lever member and a connecting pin at one end thereof, and a protruding jaw protruding outwardly is formed at the edge of the connecting hole to reduce the contact area with the bent portion. A first link member which is a link movement during movement of the;

A second link member having one end coupled to the coupling pin coupled to the other end of the first link member and interlocked with the other end coupled to the tilt bolt.

The second link member has a long hole is formed so that the coupling pin penetrates at one end thereof so as to move in the axial direction, and a coupling hole is formed at the other end thereof so that the tilt bolt is coupled to the second link member, and the tilt bolt is formed at one side of the inner circumferential surface of the coupling hole. The head portion of the fastening portion is formed.

The binding sphere is a binding body having an arc shape to be in close contact with the outer circumferential surface of the steering column, a binding portion formed at one end of the binding sphere body and surrounding the outer circumferential surface of the steering column, and formed in the lower portion of the binding sphere body It is composed of a guide rail disposed parallel to the central axis of the steering column.

The connecting means is formed in the lower portion of the binding sphere and the guide rail disposed in parallel with the central axis of the steering column,

A guide part having a guide groove corresponding to the guide rail is formed on the lever member.

The guide rail is preferably formed in a shape that increases in width from the top to the bottom.

Projections protruding to both the left and right sides of the guide rail are formed, and the guide portions are formed at both sides of the upper left and right sides of the guide groove so as to correspond to the protrusions.

First, since the lever member can be positioned at a position close to the center axis of the steering column by using a binding hole, the lever member can be positioned without restriction of the installation location, and when the lever member is disposed outside the collision region of the knee in a vehicle crash accident, It has a useful effect of improving knee injury.

Secondly, because of the push-pull type operation structure using the guide rail, not only the small torque can be operated but also the operation feeling is improved.

Third, since the structure of the guide rail and the guide groove are in close contact with each other in the form of a width that increases toward the bottom, the guide rail and the guide groove have an effect of suppressing the left and right flows when the lever member is operated, thereby improving the operation feeling.

1 is a perspective view showing a conventional tilt lever device.
Figure 2 is an exploded perspective view showing the configuration of the push-pull tilt lever device for a vehicle steering apparatus according to the present invention.
3 is a joint state view of Fig.
Figure 4 is a front view of Figure 3;
5 is a cross-sectional view taken along line AA of FIG. 4.
6 is a partial cross-sectional view taken along line BB of FIG. 4.
Figure 7a is a cross-sectional view showing a coupling state of the guide rail and the guide groove of the present invention, Figure 7b is a cross-sectional view showing another modified example of the guide rail and the guide groove.
8A and 8B are use state diagrams showing a state in which the lever member of the present invention is released and locked, respectively, during a pull operation and a push operation.
Figure 9 is a front view showing another embodiment having an electric operation of the lever member of the present invention.
10 is an assembled view of FIG.

The present invention is composed of a push-pull lever structure so that the moving force is transferred to the tilt bolt through a plurality of links when moving the lever forward and backward to realize tilt locking and releasing operation of the steering column. will be.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Push-pull tilt lever device for a vehicle steering apparatus according to the present invention, when described with reference to Figures 2 to 8, the configuration is a binding port 200 is detachably coupled to a portion of the outer peripheral surface of the steering column (100) And, the handle portion 310 is coupled to the front and rear sliding movement through the connecting means and a portion of the outer circumferential surface of the binding port 200 and the user grip is formed, the bent end bent toward the steering column 100 Link mechanism 330 is formed, and the link mechanism is connected to the end of the lever member 300 and composed of a plurality of links to transfer the rotational force during movement of the lever member 300 to the tilt bolt 155 side. It consists of.

In more detail, the link mechanism has a first link member 400 having one end pin coupled to an end of the bent portion 330 of the lever member 300 and a connecting pin 350 so that the link member moves when the lever member 300 is moved. And a second link member 500 having one end coupled to a pin coupled to the other end of the first link member 400 and the other end coupled to the tilt bolt 155. The first and second link members 400 and 500 have a three-section link structure.

The first and second link members 400 and 500 are hinged so that the first and second link pieces 410 and 510 corresponding to the respective bodies are interlocked by pins.

The first link member 400 has a connection hole 420 formed at one end of the first link piece 410 such that the connecting pin 350 penetrates, and a coupling pin at the other end side of the first link piece 410. 430 is coupled to have a structure that is connected to interlock with the second link member 500.

In addition, the first link member 400 is formed with a protruding jaw 422 protruding outward from the edge portion of the connection hole 420. This is to minimize the contact area when combined with the end of the bent portion 330 to reduce the frictional resistance.

The protruding jaw 422 is also applicable to the second link piece 510 of the second link member connected to the first link piece 410 of the first link member 400.

The second link member 500 has a long hole 520 is formed so that the coupling pin 430 penetrates one end of the second link piece 510 so as to move in the axial direction, and the second link piece 510 A coupling hole 530 is formed so that the tilt bolt 155 is coupled to the other end, and a coupling part 532 is formed to which the head portion of the tilt bolt 155 is fastened to one side of the inner circumferential surface of the coupling hole 530. It is.

In addition, the second link piece 510 of the second link member 500 is formed in a structure in which the other end is stepped from one end for coupling with the tilt bolt 155.

The connecting means is formed in the lower portion of the binding hole 200 and the guide rail 230 is disposed in parallel with the central axis of the steering column 100, the guide rail 230 on the lever member 300 And a guide part 320 having a guide groove 322 corresponding thereto.

The binding port 200 has an arc shape so as to be in close contact with the outer circumferential surface of the steering column 100, and a binding port body 210 having a guide rail 230 formed thereon, and formed at one end of the binding body 210. It consists of a binding unit 220 surrounding the outer peripheral surface of the steering column (100).

The lever member 300 has a handle portion 310 formed at one end thereof, and a guide portion 320 having a guide groove 322 having a shape corresponding to the guide rail 230 is formed at an upper surface thereof. The bent portion 330 is extended.

A connecting bracket 340 is coupled to the end of the bent portion 330 for coupling with the first link member 400, and the connecting pin 350 is connected to the end of the bent portion 330 and the connecting bracket 340. It penetrates through and has a structure coupled to the connection hole 420 of the first link member 400.

That is, the lever member 300 of the present invention is disposed to be close to the steering column 100 at an angle parallel to the central axis of the steering column 100 by using the binding hole 200 so as to close the collision area of the knee when the vehicle crashes. Can be placed in an off position.

More preferably, the left and right sides of the guide rail 230 are formed with protrusions 232 protruding from each other, and the left and right upper portions of the guide grooves 322 have stepped portions 325 corresponding to the shape of the protrusions 232. ) Is formed. This is to maintain the coupling structure of the guide rail 230 and the guide groove 322 firmly.

In addition, the guide rail 230 has a shape that increases in width from the top to the bottom, the guide groove 322 also has a shape that increases in width toward the bottom.

This is to minimize the play so that the lever member 300 does not flow before and after the movement.

FIG. 7B is a view illustrating another modified example of the guide rail 230 and the guide groove 322. The rail groove 255 is formed to extend downwardly at the lower portion of the binding body body 210 and has a lower opening. The formed approximately "? &Quot; shape rail portion 250 and the upper portion of the lever member is inserted into the rail groove 255 may be made of a movable guide 350 that can be moved back and forth. This shows that it may have a concave-convex structure contrary to the previous embodiment.

Reference numeral 150 denotes a tilt bracket 150 that performs a tilt locking and releasing operation of the steering column 100 by the rotation direction of the tilt bolt 155.

The operation of the present invention having such a configuration will now be described.

In the push-pull tilt lever device for a vehicle steering apparatus according to the present invention, the coupling unit body 210 is connected to the steering column 100 by inserting the coupling unit 220 of the coupling port 200 on the outer circumferential surface of the steering column 100. After being in close contact with the outer circumferential surface of the guide rail 230 of the lever member 300 to the guide rail 230 of the binding hole 200 by sliding the guide rail 230 in the interior of the guide groove 322 Assemble as much as possible.

Thereafter, the connecting pins 350 respectively coupled to penetrate the end of the bent portion 330 and the connecting bracket 340 pass through the connecting hole 420 of the first link member 400, and then, the first The first and second link members 400 and 500 are assembled to interlock with each other by a coupling pin 430 coupled to the other end side of the link member 400.

At this time, the coupling pin 430 is coupled to be movable in the long hole 520 of the second link member 500.

When the coupling structure of the second link member 500 and the tilt bolt 155 is coupled so that the tilt bolt 155 penetrates the coupling hole 530 of the second link member 500, the head portion of the tilt bolt 155 Is fastened to the fastening portion 532 formed on one side inner peripheral surface of the coupling hole 530 is coupled to enable the transmission of torque.

After the assembly is completed, the use process is to push the lever member 300 while holding the handle 310 of the lever member 300 (push), the first link member 400 by the push operation connecting pins It is rotated in the clockwise direction via the 350, the rotational force of the first link member 400 is transmitted to the second link member 500 via the coupling pin 430, the second link member 500 is clockwise Is rotated (see FIG. 8B).

As a result, the second link member 500 tightens the tilt bolt 155 to perform the tilt locking operation.

On the contrary, when the user pulls the lever member 300 while holding the handle 310 of the lever member 300, the first link member 400 pulls the connection pin 350 by a pull operation. Is rotated counterclockwise, and the rotational force of the first link member 400 is transmitted to the second link member 500 via the coupling pin 430 so that the second link member 500 rotates counterclockwise. do. In this case, the second link member 500 releases the tilt bolt 155 to perform the tilt release operation (see FIG. 8A).

That is, in the present invention, when the front and rear sliding of the lever member 300, the moving force is transmitted to the tilt bolt 155 side through a plurality of link mechanisms to perform the tilt locking and releasing operation, the lever member ( The operation of the sliding movement of 300) is excellent and it is possible to implement the operation in a simple configuration.

On the other hand, Figures 9 and 10 is a front view and assembling state diagram showing another embodiment of the lever member of the present invention, the operation method of the lever member is to have an electric operation method using the electric movement means, not the manual operation method described above. will be.

The configuration of the electric movement means is fixed to the steering column 100 by a fixed clamp 630 and the lever member 300 is moved along the guide rail 230 formed in the lower portion of the binding hole 200 during the rotation operation. , A moving motor 600 having a screw shaft 610 fastened to the lever member 300A so as to slide in a rearward direction, and coupled to the steering column 100, the screw shaft 610 of the moving motor 600. It is provided with a fixing bracket 620 to guide the rotation.

The moving motor 600 adopts a forward and reverse rotation type, and has a structure that is fixed to the lower side of the steering column 100 through the fixing clamp 630 and the bolt.

At this time, the moving motor 600 is disposed below the longitudinal side of the steering column.

In addition, unlike the previous embodiment, the lever member 300A has a block shape in which the screw shaft 610 is coupled to penetrate therethrough, and the bent portion 330 is formed to extend toward the steering column 100 and has an end portion. It is connected to the end of the first link member 400 has a function of transmitting the forward and rearward moving force of the lever member 300A to the first link member 400 side.

In the operation process of the electric movement means, the screw shaft 610 is rotated during the forward and reverse rotation driving of the moving motor 600, the lever member 300A fastened to the screw shaft 610 is screw shaft 610 It moves back and forth along the thread formed on the outer circumference of the).

As the lever member is moved, a force is transmitted to the second link member 500 through the first link member 400 hinged to the end of the bent portion 330 of the lever member 300A. As the link members 400 and 500 are hinged and rotated, the operation of tightening or releasing the tilt bolt 155 is the same as the above-described embodiment.

The present invention is not limited to the above-described embodiments, and variations and modifications may be made without departing from the spirit and scope of the present invention.

Description of the Related Art [0002]
100: steering column 150: tilt bracket
155: tilt bolt 200: binding sphere
210: binding body body 220: binding part
230: guide rail 232: protrusion
300, 300A: lever member 310: handle portion
320: guide portion 322: guide groove
325: stepped portion 330: bent portion
340: connecting bracket 350: connecting pin
400: first link member 410: first link piece
420: connection hole 422: protruding jaw
430: coupling pin 500: second link member
510: the second link 520: long hole
530: coupling hole 532: fastening portion
600: moving motor 610: screw shaft
620: fixing bracket 630: fixing clamp

Claims (8)

A binding hole 200 detachably coupled to the steering column 100,
A handle portion 310 that is coupled to be slidably moved forward and rearward by manual or electric operation through a portion of the outer circumferential surface of the binding port 200 and a connecting means and is gripped by a user is formed at an end of the steering column 100. A lever member 300 having a bent portion 330 bent to the side,
A vehicle steering device, characterized in that it is connected to the end of the lever member 300 is connected to a plurality of links configured to rotate when the lever member 300 is moved to transmit the rotational force to the tilt bolt 155 side. Push-pull tilt lever device. The method according to claim 1, wherein the lever member (300A) is arranged to be movable before and after the electric movement means,
The motorized movement means is coupled to the steering column 100 and the moving motor 600 having a screw shaft 610 is fastened to penetrate the lever member 300,
It is coupled to the steering column 100 and provided with a fixing bracket for guiding the rotation of the screw shaft 610 of the moving motor 600,
Push-pull tilt lever device for a vehicle steering device, characterized in that the lever member 300A is moved back and forth along the outer circumferential surface of the binding hole 200 when the screw shaft 610 of the moving motor 600 is rotated. . The method of claim 1, wherein the link mechanism has a connecting hole 420, one end of which is pin-connected to the end of the lever member 300 and the connecting pin 350 is formed to reduce the contact area with the bent portion 330 Protruding jaw 422 protruding outward is formed on the edge of the connection hole 420 and the first link member 400 is a link movement when the lever member 300 is moved,
One end has a second link member 500 that is coupled to the pin coupled to the coupling pin 430 coupled to the other end of the first link member 400 and the other end is coupled to the tilt bolt 155. A push-pull tilt lever device for vehicle steering. The method of claim 3, wherein the second link member 500 has a long hole 520 is formed so that the coupling pin 430 penetrates at one end thereof so as to move in the axial direction.
A coupling hole 530 is formed at the other end such that the tilt bolt 155 is coupled thereto.
Push-pull type tilt lever device for a vehicle steering device, characterized in that the coupling portion 532 is formed on one side of the inner peripheral surface of the coupling hole 530 is fastened to the head portion of the tilt bolt 155. The method of claim 1, wherein the fastener 200 is a fastener body 210 having an arc shape to be in close contact with the outer peripheral surface of the steering column 100,
A binding part 220 formed at one end of the binding body body 210 and surrounding an outer circumferential surface of the steering column 100;
A push-pull tilt lever device for a vehicle steering apparatus, comprising: a guide rail 230 formed at a lower portion of the fastener body 210 and disposed in parallel with a central axis of the steering column. According to any one of claims 1 to 5, The connecting means is formed on the lower portion of the binding hole 200 and the guide rail 230 is disposed in parallel with the central axis of the steering column 100,
Push-pull type tilt lever device for a vehicle steering apparatus, characterized in that it comprises a guide portion 320 formed with a guide groove 322 corresponding to the guide rail 230 on the lever member (300). The push-pull tilt lever device for a vehicle steering apparatus according to claim 6, wherein the guide rail (230) is formed in such a manner that the width of the guide rail (230) increases from the top to the bottom. The method according to claim 6, Protruding portions 232 protruding to both the left and right sides of the guide rail 230 is formed,
The guide part 320 is a push-pull tilt lever device for a vehicle steering device, characterized in that the stepped part 325 is formed on both upper left and right sides of the guide groove 322 to correspond to the protrusion 232. .

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