KR20220138587A - A steering apparatus for a vehicle - Google Patents

Abstract

The present invention relates to a vehicle steering apparatus capable of smoothening a tele-in or tele-out operation, thereby enabling a driver to control tele-in or tele-out with a little effort. The vehicle steering apparatus includes: a steering shaft; an inner tube surrounding the outer circumference of the steering shaft; a column housing surrounding the outer circumference of the inner tube, and having a tele-slot opened at one end thereof to be formed in an axial direction; a tele-stopper coupled with the inner tube to be moved along the tele-slot when the inner tube is moved in an axial direction, and coming in contact with a stopper protrusion formed on the column housing to limit the axial movement of the inner tube in a state in which the inner tube is moved in the axial direction by a predetermined section; and rollers coupled with the tele-stopper to be rotatable to be protruding from both sides of the tele-stopper, coming in contact with both sides of the tele-stopper, and having elasticity.

Description

Steering system for vehicle {A STEERING APPARATUS FOR A VEHICLE}

The present invention relates to a steering device for a vehicle, and more particularly, to a steering device for a vehicle capable of adjusting a position of a steering wheel to suit the physical condition of a driver.

In general, a steering device for a vehicle is a device for changing the traveling direction of a vehicle at the will of a driver. , is configured to include a steering column surrounding the outer periphery of the steering shaft.

As the driver rotates while holding the steering wheel by hand, the steering shaft rotates in the rotation direction of the steering wheel, and accordingly, the left and right tie rods are moved in the left and right directions by the steering gear interlocked with the steering shaft. By rotating the knuckle installed on the wheel wheel, the wheel of the vehicle is steered so that the front end is directed to the left or to the right.

Meanwhile, the steering device for a vehicle has a tilt function and a telescope function for adjusting the position of the steering wheel according to the driver's physical condition (eg, sitting height, arm length).

In order to implement the tilt function and the telescope function, the steering column consists of a column housing and an inner tube, the inner tube is disposed to surround the outer periphery of the steering shaft, and the column housing covers the outer periphery of the inner tube wrapped and placed In addition, a mounting bracket is installed on the outside of the column housing, and the mounting bracket is mounted on the vehicle body, so that the steering device can be installed on the vehicle body.

The column housing is installed on the mounting bracket to rotate about a horizontal axis, and the inner tube is axially movably installed on the column housing. The steering shaft is circumferentially rotatably installed on the inner tube through a center bearing, and is configured to rotate together with the steering wheel when a driver rotates the steering wheel.

The tilt function is a function of adjusting the position of the steering wheel by rotating the column housing around the horizontal axis.

In addition, the telescope function axially moves the inner tube with respect to the column housing so that the inner tube is axially moved together with the steering shaft while wrapping the outer periphery of the steering shaft, so that the steering wheel is rotated It is a function that can adjust the position in the direction. The telescope function also has a function of absorbing impact energy while the steering wheel and the steering column are collapsing when a vehicle collides.

The steering apparatus for a vehicle is provided with a tele lever for telescopically operating the position of the steering wheel. That is, after the driver operates the tele lever to the open position, the driver can adjust the position of the steering wheel to suit his or her body condition, and after adjusting the position of the steering wheel to suit his or her body condition, the driver can operate the tele lever The position of the steering wheel may be fixed by manipulating it to the locked position.

Republic of Korea Patent Publication No. 10-1678191 (release date of November 21, 2016) (hereinafter referred to as 'prior art') discloses a 'vehicle steering column' having an adjustment lever corresponding to the tele lever.

In the prior art, a hollow inner tube surrounding a steering shaft, a slot in the steering axis direction is formed at one end portion into which the inner tube is inserted, and facing each other on both sides of the slot around the slot from the outer circumferential surface of the steering shaft. A hollow outer tube including a pair of distance flanges extending in the vertical direction to form a telescope hole, coupled to the inner tube through the slot and disposed between the pair of distance flanges, the outer tube a rotation preventing block for limiting the rotation of a tilt bracket coupled to the outside of the pair of distance flanges and having a tilt hole formed at a position corresponding to the telescope hole to be coupled to a mounting bracket; and one side outer surface of the tilt bracket and a fixing bolt coupled to the control lever, and a fixing bolt coupled to the control lever through the telescope hole and the tilt hole.

The prior art is provided with the anti-rotation block disposed between a pair of distance flanges while being fixed to the inner tube to limit the rotation of the outer tube, so that the outer tube and the It is possible to prevent the components such as the tilt bracket coupled with the outer tube from being rotated due to their own weight or external impact, as well as restrict the axial movement of the inner tube.

However, in the prior art, the anti-rotation block is moved in the axial direction within the slot and comes into contact with the distance flange located at the end of the slot, thereby limiting the axial movement of the inner tube.

Therefore, in the prior art, when the anti-rotation block is moved in the axial direction within the slot, the axial movement may not be smooth while colliding with at least one side of the slot, which causes the driver to control tele-in or tele-out. There was a problem that a lot of power had to be consumed for that purpose.

In addition, in the prior art, when the control lever is in the locked state, when the inner tube is moved in the axial direction due to an automobile collision accident, the anti-rotation block is in contact with the distance flange, so that the inner tube Since the axial movement is restricted, there is also a problem that the driver may be seriously injured by hitting the steering wheel.

Meanwhile, in the vehicle, a multi-function switch is connected to the inner tube. The multi-function switch is formed in a lever type, is provided as a pair, and is disposed to protrude from left and right sides below the steering wheel, respectively. Among the multi-function switches on both sides, one may be a switch for controlling various lights of the vehicle, and the other may be a switch for controlling a wiper.

However, in the prior art, a minute gap is inevitably formed between both sides of the anti-rotation block and both sides of the slot, and the inner tube in which the multi-function switch is installed rotates minutely in the circumferential direction when the multi-function switch is operated. There were also possible problems.

Republic of Korea Patent Publication No. 10-1678191 (2016.11.21. Announcement date)

SUMMARY OF THE INVENTION An object of the present invention is to provide a steering apparatus for a vehicle in which a tele-in or tele-out operation is smooth and a driver can control the tele-in or tele-out with little force.

Another object of the present invention is to provide a steering apparatus for a vehicle capable of preventing circumferential rotation of an inner tube when a driver operates a multi-function switch.

Another object of the present invention is to provide a steering system for a vehicle capable of preventing serious injury to a driver by absorbing the shock transmitted to the steering system in the event of a vehicle collision accident.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a steering apparatus for a vehicle according to the present invention includes a steering shaft, an inner tube, a column housing, a tele stopper, and a roller. The inner tube surrounds an outer periphery of the steering shaft. The column housing surrounds the outer periphery of the inner tube. A teleslot is formed in the column housing in the axial direction. The teleslot is formed by opening at one end of the column housing. The tele stopper is coupled to the inner tube and moves along the tele slot when the inner tube moves in the axial direction. The tele stopper contacts the stopper protrusion formed on the column housing when the inner tube is moved in the axial direction by a predetermined section to limit the axial movement of the inner tube. The roller is rotatably coupled to the tele stopper and protrudes from both sides of the tele stopper. The roller may be in contact with both sides of the tele slot. The roller has an elastic force.

A roller insertion groove into which the roller is inserted may be formed on the inner surface of the tele stopper so that both sides thereof are opened. A coupling hole may be formed in the center of the roller. A coupling protrusion inserted into the coupling hole to rotatably couple the roller may be formed on an inner surface of the roller insertion groove.

The roller may be composed of a first roller and a second roller. The first roller may be disposed to protrude toward one side of the tele stopper and come into contact with one side of the tele slot. The second roller may be disposed to protrude toward the other side of the tele stopper and contact the other side of the tele slot. The coupling hole may be composed of a first coupling hole and a second coupling hole. The first coupling hole may be formed in the center of the first roller. The second coupling hole may be formed in the center of the second roller. The coupling protrusion may be composed of a first coupling protrusion and a second coupling protrusion. The first coupling protrusion may be inserted into the first coupling hole to rotatably couple the first roller. The second coupling protrusion may be inserted into the second coupling hole to rotatably couple the second roller.

The roller insertion groove may be composed of a first roller insertion groove and a second roller insertion groove. The first roller may be inserted into the first roller insertion groove. The first coupling protrusion may be formed on an inner surface of the first roller insertion groove. The second roller may be inserted into the second roller insertion groove. The second coupling protrusion may be formed on an inner surface of the second roller insertion groove.

The first roller insertion groove and the second roller insertion groove may communicate with each other. The first roller insertion groove and the second roller insertion groove may be disposed obliquely with respect to the axial direction.

The tele stopper may include a stopper block and a stopper plate. The stopper block may be coupled to the inner tube and move along the teleslot when the inner tube moves in the axial direction. The roller may be coupled to the stopper block. The stopper plate may be coupled to the stopper block and move in the axial direction together with the stopper block when the inner tube moves in the axial direction. A stopper portion may be formed on the stopper plate to limit the axial movement of the inner tube by being in contact with the stopper protrusion. When the inner tube is further moved in the axial direction while the stopper part is in contact with the stopper protrusion, the stopper plate may be separated from the stopper block and deformed by being pushed by the stopper block.

The stopper plate may include an outer plate part, an inner plate part, and a bending part. The outer plate part may be coupled to the stopper block and disposed outside the stopper block. The stopper part may be formed on the outer plate part. The inner plate portion may be disposed in the inner tube parallel to the outer plate portion. The bending part may connect the outer plate part and the inner plate part. The bending part may be disposed to correspond to one end of the stopper block.

The details of other embodiments are included in the detailed description and drawings.

In the steering apparatus for a vehicle according to the present invention, since the rollers rotatably coupled to the tele stopper are in contact with both sides of the tele slot, the tele-in or tele-out operation is smooth, so that the driver can tele-in or tele-out with little force. has the effect of controlling

In addition, in the steering apparatus for a vehicle according to the present invention, since the rollers are protruded from both sides of the tele stopper and contact both sides of the tele slot, when the driver operates the multi-function switch, both sides of the tele stopper and the tele slot There is also an effect that can prevent the inner tube from rotating in the circumferential direction due to the gap between both sides of the.

In addition, in the steering device for a vehicle according to the present invention, when the inner tube is inserted into the column housing rather than the maximum tele-in position due to an impact generated during a vehicle collision accident, the stopper plate is pushed by the stopper block and deformed to prevent the impact. Since it is absorbed, it also has the effect of preventing the driver from being seriously injured by hitting the steering wheel.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a steering apparatus for a vehicle according to an embodiment of the present invention;
2 is an exploded perspective view of a main part of a steering apparatus for a vehicle according to an embodiment of the present invention;
3 is an enlarged exploded perspective view of the tele stopper shown in FIG. 2;
4 is an exploded perspective view showing the bottom of the tele stopper shown in FIG. 3;
5 is a side cross-sectional view showing the tele stopper before the vehicle crash accident;
6 is a side cross-sectional view showing a telestopper after a vehicle crash accident;
7 is a view showing the action of the rollers shown in FIGS. 2 to 4 .

Hereinafter, a steering apparatus for a vehicle according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing a steering apparatus for a vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , a steering apparatus 100 for a vehicle according to an embodiment of the present invention may be installed in a vehicle.

The steering device 100 may include a steering column 7 and a steering shaft 40 . The steering column 7 may be installed on the outer peripheral surface of the steering shaft 40 . The steering column 7 may surround the outer periphery of the steering shaft 40 . The steering shaft 40 may axially penetrate the steering column 7 .

The steering column 7 may include a column housing 20 and an inner tube 30 . The column housing 20 may be installed outside the inner tube 30 , and the inner tube 30 may be installed inside the column housing 20 . The column housing 20 may surround the outer periphery of the inner tube 30 . The steering shaft 40 may axially penetrate the inner tube 30 .

Support protrusions 20A may be formed on both sides of the column housing 20 , respectively. The support protrusions 20A on both sides may be connected to and supported by the connecting portions 5A protruding from the first mounting bracket 5 through the spring 3 , respectively.

The first mounting bracket 5 may be installed in the column housing 20 and mounted on the vehicle body. The first mounting bracket 5 may be formed of a pair of first mounting brackets 5 protruding from both sides of the column housing 20 in the radial direction. Each of the pair of first mounting brackets 5 may be connected to each support protrusion 20A through a respective spring 3 . The pair of first mounting brackets 5 may be disposed orthogonally to a pair of mounting bracket portions 23 and 24 to be described later.

The column housing 20 may be rotatably installed on the vehicle body about a horizontal axis. Here, the horizontal axis may be an axis in a direction perpendicular to the axial direction of the steering shaft 40 . A tilt lever (not shown) may be provided in the vehicle compartment, and the driver may operate the tilt lever to make the column housing 20 rotatable about the horizontal axis as a rotation center. After that, the driver may rotate the column housing 20 about the horizontal axis to the rotation center, so that the position of the steering wheel (not shown) comes to a position suitable for the physical condition of the driver.

In addition, the inner tube 30 may be axially movably installed inside the column housing 20 . The inner tube 30 may be formed in an axially long cylindrical shape, and both ends may be opened. A tele lever 50 may be installed in the column housing 20 . The operator may rotate the tele lever 50 to make the inner tube 30 axially movable with respect to the column housing 20 , and then pivot the inner tube 30 relative to the column housing 20 . direction, so that the position of the steering wheel can be brought to a position suitable for the physical condition of the driver.

A second mounting bracket 6 may be installed on the inner tube 30 . The second mounting bracket 6 may be mounted on the vehicle body. The second mounting bracket 6 may be disposed at a 90 degree angle to the pair of first mounting brackets 5 installed in the column housing 20 .

The steering shaft 40 may include an inner shaft (not shown) and an outer shaft 42 . The upper end of the inner shaft may be inserted into the lower end of the outer shaft 42 . The outer shaft 42 may have an outer diameter larger than that of the inner shaft, and the inner shaft may have a smaller outer diameter than the outer shaft 42 .

The outer shaft 42 may constitute an upper portion of the steering shaft 40 , and the inner shaft may constitute a lower portion of the steering shaft 40 .

The upper end of the outer shaft 42 may protrude upward from the upper end of the inner tube 30 , and the lower end of the inner shaft may protrude downward from the lower end of the column housing 20 .

The steering wheel may be installed at an upper end of the outer shaft 42 . The steering wheel is a configuration that a driver holds by hand and rotates to the right or to the right to steer the vehicle, and may be disposed in a vehicle compartment around an instrument panel located in front from the driver's seat.

A decoupling unit (not shown) that acts as a damping unit may be installed at the lower end of the inner shaft. The decoupling unit may be connected to a universal joint disposed on an upper end of an intermediate shaft (not shown). That is, the decoupling unit may connect the lower end of the steering shaft and the unit universal joint disposed at the upper end of the intermediate shaft.

When the outer shaft 42 is rotated as the driver rotates the steering wheel, the inner shaft may be rotated in association with this.

In addition, when the driver adjusts the position of the steering wheel to suit his or her body condition, as the inner tube 30 moves in the axial direction, the inner shaft may be drawn into or drawn out of the outer shaft 42 .

Meanwhile, a bearing unit (not shown) may be installed inside the inner tube 30 . The bearing unit may rotatably install the steering shaft 40 to the inner tube 30 . The bearing unit may be installed between the inner tube 30 and the steering shaft 40 . The bearing unit may be installed between the inner tube 30 and the outer shaft 42 .

In order for the driver to move the inner tube 30 in the axial direction with respect to the column housing 20 to adjust the position of the steering wheel to suit his or her body condition, the column housing 20 has a teleslot 25 It can be formed in this axial direction. The tele slot 25 may be formed to be opened at one end of the column housing 20 .

In this embodiment, since the lower end of the inner tube 30 is inserted into the upper end of the column housing 20 and the upper end of the inner tube 30 protrudes out of the upper end of the column housing 20, the teleslot ( 25 is formed to be opened at the top of the column housing 20 . However, if the upper end of the inner tube 30 is inserted into the lower end of the column housing 20 and the lower end of the inner tube 30 protrudes out of the lower end of the column housing 20, the teleslot 25 is It may be formed to be opened at the lower end of the column housing 20 .

In addition, a pair of mounting bracket portions 23 and 24 may be formed in the column housing 20 . The pair of installation bracket portions 23 and 24 may be formed to face each other in a radial direction on the outer peripheral surface of the upper end of the column housing 20 .

The teleslot 25 is formed by being opened from the upper end of the column housing 20 , and may be formed to pass between the pair of mounting brackets 23 and 24 in the axial direction.

The tele shaft 55 may pass through the pair of mounting brackets 23 and 24 . The tele shaft 55 may be elongated in a direction perpendicular to the axial direction of the steering shaft 40 . The tele shaft 55 may be disposed elongated in the radial direction of the inner tube 30 . The tele shaft 55 may be long in the horizontal direction.

The tele lever 50 is coupled to one end of the tele shaft 55 and adjusts the radial width of the tele slot 25 to control the axial movement of the inner tube 30 with respect to the column housing 20 . . That is, when the driver rotates the tele lever 50 to the open position in order to adjust the position of the steering wheel to suit his or her body condition, the radial width of the tele slot 25 is widened and the The inner circumferential surface is in loose contact with the outer circumferential surface of the inner tube 30 , so that the inner tube 30 can be moved in the axial direction with respect to the column housing 20 . In addition, when the driver rotates the tele lever 50 to the locked position after adjusting the position of the steering wheel to suit his or her body condition, the radial width of the tele slot 25 is narrowed and the column housing 20 is Since the inner circumferential surface is in close contact with the outer circumferential surface of the inner tube 30 , the inner tube 30 may not be able to move in the axial direction with respect to the column housing 20 .

The pair of installation bracket portions 23 and 24 include a first installation bracket portion 23 formed on one side of the outer peripheral surface of the upper end of the column housing 20 , and a second installation bracket portion 23 formed on the other side of the outer peripheral surface of the upper end of the column housing 20 . It may include an installation bracket portion (24). The first installation bracket part 23 and the second installation bracket part 24 may be disposed to face each other in a radial direction of the column housing 20 .

The tele shaft 55 may pass through the pair of installation bracket portions 23 and 24, and both ends of the tele shaft 55 may be disposed to protrude outward of the pair of installation bracket portions 23 and 24, respectively. have. A first cam (not shown) may be installed at one end of the tele shaft 55 protruding to the outside of the first mounting bracket unit 23 , and a tele lever coupled to one end of the first mounting bracket unit 23 ( 50), a second cam (not shown) may be disposed on an inner surface facing the first cam.

When the driver rotates the tele lever 50 to the locked position, the first cam and the second cam are tightly engaged, and accordingly, the pair of installation bracket parts 23 and 24 are pulled in a direction closer to each other. As a result, the radial width of the teleslot 25 is reduced, and the inner circumferential surface of the column housing 20 is in close contact with the outer circumferential surface of the inner tube 30 to prevent the inner tube 30 from moving in the axial direction.

In addition, when the driver rotates the tele lever 50 to the open position, the first cam and the second cam are opened from each other, and accordingly, the pair of mounting bracket parts 23 and 24 are opened to their original positions and the tele The radial width of the slot 25 is widened to its original position, and the inner circumferential surface of the column housing 20 is in loose contact with the outer circumferential surface of the inner tube 30, thereby enabling the inner tube 30 to move in the axial direction. .

A fixed gear 56 may be coupled to the outside of the second installation bracket part 24 , and the other end of the tele shaft 55 protruding to the outside of the second installation bracket part 24 passes through the fixed gear 56 . Thus, it may protrude to the outside of the fixed gear 56 . In addition, the movable gear 57 may be installed at the other end of the tele shaft 55 protruding to the outside of the fixed gear 56 . The other end of the tele shaft 55 may pass through the movable gear 57 , and a nut 58 may be installed at the other end of the tele shaft 55 passing through the movable gear 57 . The nut 58 may prevent the movable gear 57 from coming out through the other end of the tele shaft 55 . A shaft through hole through which the tele shaft 55 passes may be formed in each of the pair of mounting bracket portions 23 and 24 , the fixed gear 56 , and the movable gear 57 .

The fixed gear 56 and the movable gear 57 may have a substantially rectangular shape and may be disposed to face each other, and gear teeth may be formed on opposite surfaces of the fixed gear 56 and the movable gear 57 , respectively. When the tele lever 50 is in the locked position, the gear teeth formed on the movable gear 57 are meshed with the gear teeth formed on the fixed gear 56 , so that the locked state of the tele lever 50 may not be released.

A tele stopper 60 may be coupled to the inner tube 30 . The tele stopper 60 may be disposed to be movable in the axial direction together with the inner tube 30 .

The tele stopper 60 may be coupled to the inner tube 30 to move along the tele slot 25 when the inner tube 30 is moved in the axial direction.

The tele stopper 60 is in contact with the stopper protrusions 21 and 22 formed on the column housing 20 when the inner tube 30 is moved in the axial direction by a predetermined section to limit the axial movement of the inner tube 30 . can do. The tele stopper 60 has contact with the stopper protrusions 21 and 22 formed on the column housing 20 when the inner tube 30 is moved by a predetermined section in the axial direction to limit the axial movement of the inner tube 30 . A stopper portion 70 may be formed.

During the operation of the driver adjusting the position of the steering wheel to suit his or her body condition, the operation of moving the inner tube 30 in the axial direction and inserting it into the column housing 20 is called tele-in, and the inner tube 30 ) in the axial direction to withdraw from the column housing 20 is referred to as a tele-out.

The position where the stopper part 70 contacts the stopper protrusions 21 and 22 may be the maximum tele-in position. That is, the state in which the inner tube 30 is moved in the axial direction by the predetermined section may be a state in which the inner tube 30 is moved to the maximum tele-in position.

The stopper protrusions 21 and 22 formed on the column housing 20 may be formed of a pair of stopper protrusions 21 and 22 respectively formed on both sides of the teleslot 25 . The pair of stopper projections 21 and 22 includes a first stopper projection 21 formed on one side of the teleslot 25 and a second stopper projection 22 formed on the other side of the teleslot 25 . can do. Since the stopper protrusions 21 and 22 are formed of a pair of stopper protrusions 21 and 22, when the stopper plate 90 to be described later is separated from the stopper block 80, the stopper plate 90 rotates to one side. It may not be, and furthermore, the stopper plate 90 may be pushed by the stopper block 80 so that it can be deformed stably.

A pair of stopper projections 71 and 72 may be formed in the stopper portion 70 formed on the tele stopper 60 to respectively contact the pair of stopper projections 21 and 22 formed on the column housing 20 . The pair of stopper protrusions 71 and 72 may be formed on a surface of the stopper portion 70 opposite to the pair of stopper protrusions 21 and 22 . The pair of stopper protrusions 71 and 72 includes a third stopper protrusion 71 in contact with the first stopper protrusion 21 and a fourth stopper protrusion 72 in contact with the second stopper protrusion 22 . can do.

On the other hand, in the event of a vehicle collision, if the inner tube 30 is further moved in the axial direction while the stopper part 70 is in contact with the stopper protrusions 21 and 22, the tele stopper 60 can absorb the impact. have. A structure in which the tele stopper 60 can absorb an impact in a vehicle crash accident will be described below with reference to FIGS. 2 to 6 .

2 is an exploded perspective view of a main part of a steering apparatus for a vehicle according to an embodiment of the present invention, FIG. 3 is an enlarged exploded perspective view of the tele stopper shown in FIG. 2, and FIG. 4 is an exploded perspective view showing the bottom surface of the tele stopper shown in FIG. , FIG. 5 is a side cross-sectional view showing the tele stopper before the vehicle crash accident, and FIG. 6 is a side cross-sectional view showing the tele stopper after the vehicle crash accident.

2 to 6 , the tele stopper 60 may include a stopper block 80 and a stopper plate 90 in order to absorb an impact during a vehicle collision accident.

The stopper block 80 may be coupled to the inner tube 30 to move along the teleslot 25 when the inner tube 30 is moved in the axial direction.

The stopper plate 90 is coupled to the stopper block 80 so that when the inner tube 30 is moved in the axial direction, it may be moved together with the stopper block 80 in the axial direction.

A stopper portion 70 may be formed on the stopper plate 90 . In the event of a vehicle crash, the stopper plate 90 is separated from the stopper block 80 when the inner tube 30 is further moved in the axial direction while the stopper portion 70 is in contact with the stopper protrusions 21 and 22. After being pushed and deformed by the stopper block 80 , it is possible to absorb the impact generated during a vehicle crash accident. Accordingly, since the impact energy generated in a vehicle collision accident is consumed to deform the stopper plate 90, it can be transmitted to the driver through the steering wheel to a minimum.

The stopper plate 90 may be formed in a plate shape in which any one point in the longitudinal direction is bent once. That is, the stopper plate 90 may include an outer plate part 91 , an inner plate part 92 , and a bending part 93 .

The outer plate part 91 may be coupled to the stopper block 80 and disposed outside the stopper block 80 . A stopper part 70 may be formed in the outer plate part 91 . The outer plate portion 91 may be a portion coupled to the stopper block 80 of the stopper plate 90 . The outer plate portion 91 may be formed to be elongated in the axial direction.

The inner plate part 92 may be disposed parallel to the outer plate part 91 inside the inner tube 30 . The inner plate part 92 may be disposed to face the inner surface of the stopper block 80 . The inner plate portion 92 may be disposed to be spaced downward from the inner surface of the stopper block 80 . The inner plate portion 92 may be formed to be elongated in the axial direction.

The bending part 93 may connect the outer plate part 91 and the inner plate part 92 . The bending part 93 may be disposed to correspond to one end of the stopper block 80 . That is, one end of the stopper block 80 may be disposed between the outer plate portion 91 and the inner plate portion 92 , and the bending portion 93 is disposed in front of the stopper block 80 in the tele-in direction. can be Accordingly, when the stopper block 80 is moved in the axial direction in a state in which the stopper plate 90 is separated from the stopper block 80 , the bending part 93 may be pushed by one end of the stopper block 80 , thereby Accordingly, the stopper plate 90 may be deformed.

When the inner tube 30 is further moved in the axial direction while the stopper part 70 is in contact with the stopper protrusions 21 and 22 during a vehicle crash accident, the stopper plate 90 may be separated from the stopper block 80 . In order to make it possible, it is preferable that the outer plate part 91 is coupled to the stopper block 80 through a fastening member having low rigidity. In this embodiment, the outer plate part 91 is coupled to the stopper block 80 and the inner tube 30 through rivets R1 and R2. Accordingly, when the inner tube 30 is further moved in the axial direction while the stopper portion 70 is in contact with the stopper protrusions 21 and 22 during a vehicle collision accident, the rivets R1 and R2 are damaged, and thus the outer plate portion 91 may be separated from the stopper block 80 .

Fastening holes 91G, 81, 31, 91H, 82, and 32 to which rivets R1 and R2 are respectively fastened may be formed in the outer plate portion 91 , the stopper block 80 , and the inner tube 30 .

The rivets R1 and R2 may include a first rivet R1 and a second rivet R2 spaced apart from each other in the axial direction. The fastening holes 91G, 81, 31, 91H, 82, and 32 include a first fastening hole 91G and a second fastening hole 91H formed in the outer plate part 91 to be axially spaced apart from each other, and a stopper. A third fastening hole 81 and a fourth fastening hole 82 formed in the block 80 to be axially spaced apart from each other, and a fifth fastening hole 31 formed to be axially spaced apart from each other in the inner tube 30 . and a sixth fastening hole 32 . The first rivet R1 includes a first fastening hole 91G, a third fastening hole 81 and a fifth fastening hole 31 formed in the outer plate part 91, the stopper block 80, and the inner tube 30, respectively. ) through which it can be fastened. The second rivet R2 includes a second fastening hole 91H, a fourth fastening hole 82 and a sixth fastening hole 32 respectively formed in the outer plate part 91 , the stopper block 80 and the inner tube 30 . ) through which it can be fastened.

Polygonal protrusions 83 and 84 inserted into polygonal holes 33 and 34 formed in the inner tube 30 may be formed on the inner surface of the stopper block 80 . The polygonal protrusions 83 and 84 may be formed between the third fastening hole 81 and the fourth fastening hole 82 . The polygonal protrusions 83 and 84 may include a first polygonal protrusion 83 and a second polygonal protrusion 84 formed to be spaced apart from each other in the axial direction on the inner surface of the stopper block 80 . The polygonal holes 33 and 34 may include a first polygonal hole 33 and a second polygonal hole 34 formed in the inner tube 30 to be spaced apart from each other in the axial direction. The first polygonal protrusion 83 may be inserted into the first polygonal hole 33 , and the second polygonal protrusion 84 may be inserted into the second polygonal hole 34 .

Since the polygonal protrusions 83 and 84 are inserted into the polygonal holes 33 and 34, when the rivets R1 and R2 are broken and the stopper plate 90 is separated from the stopper block 80, the inner tube When 30 is moved in the axial direction, the stopper block 80 is moved together with the inner tube 30 in the axial direction to push the bending portion 93 of the stopper plate 90 to deform the stopper plate 90. . In order to prevent the stopper block 80 from rotating when the stopper block 80 pushes the bending portion 93 of the stopper plate 90 , the polygonal projections 83 and 84 are formed in a polygonal shape and the polygonal holes 33 and 34 are formed. ) is preferably formed of a hole having a shape corresponding to the polygonal projections (83, 84). In the present embodiment, the polygonal protrusions 83 and 84 and the polygonal holes 33 and 34 are illustrated as being formed in a substantially rectangular shape, but may be variously changed to a triangular shape, a pentagonal shape, or a hexagonal shape.

Meanwhile, polygonal slot holes 91S1 and 91S2 may be formed in the outer plate portion 91 of the stopper plate 90 . The polygonal slot holes 91S1 and 91S2 may be formed at positions corresponding to the polygonal protrusions 83 and 84 formed in the stopper block 80 . Therefore, when the stopper block 80 is assembled to the stopper plate 90, the polygonal projections 83 and 84 of the stopper block 80 are inserted into the polygonal holes 33 and 34 of the inner tube 30. , since the positions of the polygonal projections 83 and 84 can be grasped from the outside of the stopper plate 90 , the tele stopper 60 can be easily assembled to the inner tube 30 . Of course, the polygonal slot holes 91S1 and 91S2 may reduce the weight of the stopper plate 90 . The polygonal slot holes 91S1 and 91S2 may be formed in a shape corresponding to the polygonal projections 83 and 84, and in this embodiment, the polygonal projections 83 and 84 are formed in a rectangular shape, so the polygonal slot holes 91S1, 91S2) is also formed in a rectangular shape. The polygonal slot holes 91S1 and 91S2 may include a first polygonal slot hole 91S1 and a second polygonal slot hole 91S2 formed in the outer plate part 91 to be spaced apart from each other in the axial direction. The first polygonal slot hole 91S1 may be formed at a position corresponding to the first polygonal protrusion 83 , and the second polygonal slot hole 91S2 may be formed at a position corresponding to the second polygonal protrusion 84 . have.

Meanwhile, bolt fastening portions 91A and 91B may be formed to protrude from both sides of one end of the outer plate portion 91 . The bolt fastening parts 91A and 91B include a first bolt fastening part 91A protruding from one end of one end of the outer plate part 91 and a second bolt fastening formed protruding from one end of the outer plate part 91 to the other side of the outer plate part 91 . A portion 91B may be included. A first side bending part 91C and a second side bending part 91D may be formed on both sides of the outer plate part 91 , respectively. The first side bending part 91C and the second side bending part 91D may be formed entirely along the length of the outer plate part 91 , and may be bent in a direction opposite to the inner plate part 92 . The first bolt fastening part 91A may protrude from one side of one end of the first side bending part 91C, and the second bolt fastening part 91B may be formed on one side of one end of the second side bending part 91D. A protrusion may be formed.

The stopper part 70 may be fastened to the bolt fastening parts 91A and 91B through the bolt B. The bolt B may include a first bolt fastened to the first bolt fastening part 91A and a second bolt fastened to the second bolt fastening part 91B. Since the stopper part 70 is coupled to the stopper plate 90 through a bolt (B), which is a fastening member stronger than the rivets (R1, R2), the stopper part 70 is a stopper protrusion ( If the inner tube 30 is further moved in the axial direction while in contact with the 21 and 22 , the rivets R1 and R2 may be damaged.

The stopper part 70 may be formed in a substantially rectangular plate shape. Bolt fastening holes 73 and 74 through which the bolt B passes may be formed in the stopper portion 70 . The bolt fastening holes 73 and 74 may include a first bolt fastening hole 73 through which the first bolt passes, and a second bolt fastening hole 74 through which the second bolt passes. The first bolt fastening hole 73 and the second bolt fastening hole 74 may be formed to be spaced apart from each other in the radial direction of the inner tube 30 .

A third bolt fastening hole 91E corresponding to the first bolt fastening hole 73 may be formed in the first bolt fastening part 91A, and a second bolt fastening hole 74 in the second bolt fastening part 91B. ) and the corresponding fourth bolt fastening hole 91F may be formed. The third bolt fastening hole 91E may be formed to open the outside of the first bolt fastening part 91A, and the fourth bolt fastening hole 91F may be formed to open the outside of the second bolt fastening part 91B. can be The first bolt may pass through the first bolt fastening hole 73 and the third bolt fastening hole 91E, and the second bolt may pass through the second bolt fastening hole 74 and the fourth bolt fastening hole 91F. can penetrate

A pair of cutout holes 75 and 76 may be formed in the stopper part 70 between the first bolt fastening hole 73 and the second bolt fastening hole 74 . The weight of the stopper part 70 may be reduced by the pair of cut-out holes 75 and 76 . The pair of cutout holes 75 and 76 may be opened in the direction in which the tele slot 25 is opened. The pair of cut-out holes 75 and 76 may include a first cut-out hole 75 and a second cut-out hole 76 formed to be spaced apart from each other in the radial direction of the inner tube 30 .

A guider part 85 may protrude from the inner surface of one end of the stopper block 80 . In addition, an insertion hole 35 into which the guider part 85 is inserted may be formed in the inner tube 30 . The insertion hole 35 may be formed to be axially opened at an end of the inner tube 30 inserted into the column housing 20 . The guider part 85 may be inserted into the insertion hole 35 to be disposed inside the inner tube 30 . A guide slot 86 through which the inner plate part 92 is movably disposed may be formed in the guider part 85 .

A part of the bending part 93 may be disposed in the insertion hole 35 . Since the insertion hole 35 is opened and formed at the end of the inner tube 30 inserted into the column housing 20, after the stopper plate 90 is separated from the stopper block 80, the stopper block ( When one end of the 80 pushes the bending part 93 in the axial direction, the bending part 93 is pushed in the axial direction by the stopper block 80 , and the stopper plate 90 maintains the shape of the bending part 93 . can be transformed as When the bending unit 93 is pushed by the stopper block 80 , one end of the stopper block 80 is in contact with the bending unit 93 in order to be deformed while maintaining the shape of the bending unit 93 as much as possible. It is preferable to form a convex curved portion 87 corresponding to the shape of the bending portion 93 .

A pair of cut-out holes 88 and 89 through the guide part 85 may be formed on the outer surface of one end of the stopper block 80 . The weight of the stopper block 80 may be reduced by a pair of cut-out holes 88 and 89 . The pair of cut-out holes 88 and 89 may be formed to pass through one end of the stopper block 80 from the outer surface to the inner surface. The pair of cut-out holes 88 and 89 may include a third cut-out hole 88 and a fourth cut-out hole 89 that are formed to be spaced apart from each other in the radial direction of the inner tube 30 .

The operation of the tele stopper 60 will be described as follows.

Before the vehicle collision accident occurs, as shown in FIGS. 1 and 5 , the outer plate part 91 of the stopper plate 90 is connected to the stopper block 80 and the inner tube 30 through the rivets R1 and R2. is bound to

When a vehicle collision accident occurs in such a state, and the inner tube 30 is moved in the axial direction and inserted into the column housing 20 , the stopper portion 70 formed on the stopper plate 90 is inserted into the column housing 20 . ) is in contact with the stopper projections (21, 22) formed in the. In this state, when the inner tube 30 is further moved in the axial direction, as shown in FIG. 6 , the rivets R1 and R2 are broken and the stopper plate 90 is separated from the stopper block 80, and then The bending portion 93 of the stopper plate 90 is deformed by being pushed by the curved portion 87 formed at one end of the stopper block 80 , thereby absorbing the shock generated in the vehicle crash accident.

7 is a view showing the action of the rollers shown in FIGS. 2 to 4 .

2 to 7 , rollers 11 and 12 having elastic force may be coupled to the tele stopper 60 . The rollers 11 and 12 are disposed to protrude from both sides of the tele stopper 60 to be in contact with both sides of the tele slot 25 . Since the rollers 11 and 12 protrude on both sides of the tele stopper 60 and contact both sides of the tele slot 25, when the driver operates the multi-function switch, both sides of the tele stopper 60 and the tele slot ( 25) can prevent the inner tubes 11 and 12 from rotating in the circumferential direction by the gap C between both sides of the noise can be prevented.

Since the rollers 11 and 12 are formed of an elastic material having an elastic force, it is possible to absorb impact and prevent noise. For example, the rollers 11 and 12 may be formed of a rubber material.

In addition, the rollers 11 and 12 are in contact with both sides of the teleslot 25 to rotate as the telestopper 60 moves along the teleslot 25 . Accordingly, when the tele-in or the tele-out is performed smoothly, the user may control the tele-in or the tele-out with little force.

The rollers 11 and 12 may be formed in a disk shape. Therefore, since the circumferential surfaces of the rollers 11 and 12 are formed as outwardly convex curved surfaces, the operator operates the tele lever 50 to the open position or the locked position to widen or narrow the radial width of the tele slot 25. Even when it loses, both sides of the rollers 11 and 12 can always maintain a state in contact with both sides of the teleslot 25 .

The rollers 11 and 12 are elastically deformed when the operator operates the tele lever 50 to the open position or the locked position, so that both sides are formed in a structure that can maintain a state in contact with both sides of the tele slot 25. it is preferable

Since the rollers 11 and 12 are rotated while being moved in the axial direction while being in contact with both sides of the teleslot 25 , the rollers 11 and 12 can maintain a rotatably coupled state to the tele stopper 60 . have.

On the inner surface of the tele stopper 60, roller insertion grooves 65 and 66 into which the rollers 11 and 12 are inserted may be formed so that both sides thereof are opened. Since the roller insertion grooves 65 and 66 are formed to be open on both sides, both ends of the rollers 11 and 12 protrude to both sides of the tele stopper 60 through the open both sides of the roller insertion grooves 65 and 66. can be placed. The roller insertion grooves 65 and 66 may be formed in a circular shape corresponding to the rollers 11 and 12 .

Coupling holes 11A and 12A may be formed in the center of the rollers 11 and 12 . On the inner surface of the roller insertion grooves (65, 66), engaging projections (65A, 66A) may be formed to protrude. The coupling protrusions 65A and 66A may be inserted into the coupling holes 11A and 12A to rotatably couple the rollers 11 and 12 to each other.

The rollers 11 and 12 may include a first roller 11 and a second roller 12 . The first roller 11 may be disposed to protrude to one side of the tele stopper 60 , and may come into contact with one side of the tele slot 25 . The second roller 12 may be disposed to protrude toward the other side of the tele stopper 60 , and may come into contact with the other side of the tele slot 25 .

The coupling holes 11A and 12A may include a first coupling hole 11A and a second coupling hole 12A. The first coupling hole 11A may be formed in the center of the first roller 11 . The second coupling hole 12A may be formed in the center of the second roller 12 .

The coupling protrusions 65A and 66A may include a first coupling protrusion 65A and a second coupling protrusion 66A. The first coupling protrusion 65A may be inserted into the first coupling hole 11A to rotatably couple the first roller 11 . The second coupling protrusion 66A may be inserted into the second coupling hole 12A to rotatably couple the second roller 12 .

The roller insertion grooves 65 and 66 may include a first roller insertion groove 65 and a second roller insertion groove 66 . The first roller 11 may be inserted into the first roller insertion groove 65 . A first coupling protrusion 65A may be formed on the inner surface of the first roller insertion groove 65 . The second roller 12 may be inserted into the second roller insertion groove 66 . A second coupling protrusion 66A may be formed on the inner surface of the second roller insertion groove 66 .

The first roller insertion groove 65 and the second roller insertion groove 66 may communicate with each other. The first roller insertion groove 65 and the second roller insertion groove 66 may be arranged in an oblique line with respect to the axial direction so that they can be coupled and disposed even with a small width with respect to the axial direction. The first roller insertion groove 65 may be disposed above the second roller insertion groove 66 . Therefore, when the first roller 11 is inserted into the first roller insertion groove 65 and the second roller 12 is inserted into the second roller insertion groove 66, the first roller 11 is It may be disposed above the second roller 12 .

Meanwhile, in the present embodiment, the tele stopper 60 is composed of a stopper block 80 and a stopper plate 90 , and the rollers 11 and 12 are coupled to the stopper block 80 . That is, the roller insertion grooves 65 and 66 are formed in the stopper block 80 . The roller insertion grooves 65 and 66 are formed at an intermediate point between the pair of polygonal projections 83 and 84 among the stopper blocks 80 .

However, in order for the rollers 11 and 12 to be coupled to the tele stopper 60 , the tele stopper 60 does not necessarily include the stopper block 80 and the stopper plate 90 , and If it is a structure that is caught by the stopper protrusions 21 and 22 at the maximum tele-in position to limit the axial movement of the inner tube 30, various modifications may be made.

The operation of the rollers 11 and 12 will be described as follows.

When the driver operates the tele lever 50 to the open position in order to adjust the position of the steering wheel to a position suitable for his/her body condition, the width of the tele slot 25 increases, so that both sides of the rollers 11 and 12 The pressing force received from both sides of the teleslot 25 is weakened, and accordingly, the rubber rollers 11 and 12 change to the original shape of a circular plate, and maintain a state in contact with both sides of the teleslot 25. can

Thereafter, the driver may move the inner tube 30 in the axial direction to move the position of the steering wheel to a position suitable for his/her body condition. As the driver moves the inner tube 30 in the axial direction, the rollers 11 and 12 may be rotated while being in contact with both sides of the teleslot 25 . Therefore, the driver can tele-in or tele-out with little force.

In addition, when the driver adjusts the position of the steering wheel to a position suitable for his/her physical condition and then manipulates the tele lever 50 to the locked position, the width of the tele slot 25 is narrowed, so the rollers 11 and 12 ) on both sides of the teleslot 25, the pressing force received from both sides becomes stronger, and accordingly, the rollers 11 and 12 maintain a state in contact with both sides of the teleslot 25, while the peripheral surfaces of the rollers 11 and 12 are slightly distorted inward. can

As described above, in the vehicle steering apparatus 100 according to the embodiment of the present invention, the rollers 11 and 12 rotatably coupled to the tele stopper 60 are in contact with both sides of the tele slot 25 . , the tele-in or tele-out operation is smooth, allowing the operator to adjust the tele-in or tele-out with little force.

In addition, in the steering apparatus 100 of the vehicle according to the embodiment of the present invention, the rollers 11 and 12 are disposed protruding from both sides of the tele stopper 60 to contact both sides of the teleslot 25, so that the driver When the multi-function switch is operated, it is possible to prevent the inner tube 30 from rotating in the circumferential direction due to the gap C between both sides of the tele stopper 60 and both sides of the tele slot 25 .

In addition, in the steering apparatus 100 for a vehicle according to the embodiment of the present invention, when the inner tube 30 is inserted into the column housing 20 rather than the maximum tele-in position due to an impact generated during a vehicle collision accident, the stopper plate After the 90 is separated from the stopper block 80, it is pushed and deformed by the stopper block 80 to absorb the shock, thereby preventing the driver from being seriously injured by colliding with the steering wheel.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

11, 12: roller 11A, 12A: coupling hole
20: column housing 25: teleslot
30: inner tube 40: steering shaft
60: tele stopper 65, 66: roller insertion groove
65A, 66A: coupling protrusion 70: stopper part
80: stopper block 90: stopper plate
91: outer plate portion 92: inner plate portion
93: bending part

Claims (7)

steering shaft 40;
an inner tube 30 surrounding the outer periphery of the steering shaft 40;
a column housing 20 surrounding the outer periphery of the inner tube 30 and having a teleslot 25 opened at one end and formed in the axial direction;
When the inner tube 30 is coupled to the inner tube 30 and moves along the teleslot 25 when the inner tube 30 is moved in the axial direction, the inner tube 30 is moved in the axial direction by a predetermined section a tele stopper (60) contacting the stopper protrusions (21, 22) formed on the column housing (20) to limit the axial movement of the inner tube (30); and
It is rotatably coupled to the tele stopper 60, is disposed to protrude from both sides of the tele stopper 60, is in contact with both sides of the tele slot 25, and includes rollers 11 and 12 having elastic force; car steering system. The method according to claim 1,
On the inner surface of the tele stopper 60, roller insertion grooves 65 and 66 into which the rollers 11 and 12 are inserted are formed so that both sides are opened,
Coupling holes 11A and 12A are formed in the center of the rollers 11 and 12,
A steering device for a vehicle in which coupling protrusions 65A and 66A for rotatably coupling the rollers 11 and 12 by being inserted into the coupling holes 11A and 12A are formed on the inner surfaces of the roller insertion grooves 65 and 66. . 3. The method according to claim 2,
The rollers 11 and 12,
a first roller 11 protruding from one side of the tele stopper 60 and contacting one side of the tele slot 25;
and a second roller 12 protruding to the other side of the tele stopper 60 and contacting the other side of the tele slot 25,
The coupling hole (11A, 12A) is,
a first coupling hole 11A formed in the center of the first roller 11;
It includes a second coupling hole (12A) formed in the center of the second roller (12),
The coupling projections (65A, 66A) are,
a first coupling protrusion 65A inserted into the first coupling hole 11A and rotatably coupled to the first roller 11;
and a second coupling protrusion (66A) inserted into the second coupling hole (12A) to rotatably couple the second roller (12). 4. The method of claim 3,
The roller insertion grooves (65, 66) are,
A first roller insertion groove 65 into which the first roller 11 is inserted and the first engaging protrusion 65A is formed on an inner surface thereof;
and a second roller insertion groove (66) in which the second roller (12) is inserted and the second engaging protrusion (66A) is formed on an inner surface thereof. 5. The method according to claim 4,
The first roller insertion groove (65) and the second roller insertion groove (66) communicate with each other and are disposed at an oblique angle with respect to the axial direction. The method according to claim 1,
The tele stopper 60,
a stopper block 80 coupled to the inner tube 30 and moving along the teleslot 25 when the inner tube 30 is moved in the axial direction;
When the inner tube 30 is coupled to the stopper block 80 and moves in the axial direction, it moves together with the stopper block 80 in the axial direction, and comes into contact with the stopper protrusions 21 and 22 to make the inner tube 30 move in the axial direction. It includes a stopper plate 90 having a stopper portion 70 that limits the axial movement of the 30,
The stopper plate 90 is separated from the stopper block 80 when the inner tube 30 is further moved in the axial direction while the stopper part 70 is in contact with the stopper protrusions 21 and 22. It is deformed by being pushed by the stopper block 80,
The roller (11, 12) is a vehicle steering device coupled to the stopper block (80). 7. The method of claim 6,
The stopper plate 90,
an outer plate portion 91 coupled to the stopper block 80 and disposed outside the stopper block 80, the stopper portion 70 being formed;
an inner plate portion 92 disposed in the inner tube 30 parallel to the outer plate portion 91;
and a bending part (93) connecting the outer plate part (91) and the inner plate part (92) and disposed to correspond to one end of the stopper block (80).

Images