KR101389600B1 - Tilt or Tilt and Telescope steering apparatus - Google Patents

Abstract

The present invention relates to a tilt or tilt and telescope steering device.
According to an embodiment of the present invention, a distance bracket surrounding a tube into which a steering shaft is interpolated; A tilt bracket coupled to both sides of the distance bracket and having a tilt hole formed at one side thereof; An adjust bolt installed through the distance bracket and the tilt hole; A tilt hole coupled to one side of the tilt bracket, a tilt hole through which the adjust bolt penetrates, a tilt fixed gear part at both ends, and a tilt fixed cam part formed in the tilt hole direction from the tilt fixed gear part Cam-gear members; And a tilting operation gear portion coupled to the adjust bolt, the tilting operation gear portion being coupled to or released from the tilting fixed gear portion on both sides, and having a tilting operation cam portion formed from the tilting operation gear portion in a direction provided with the fixed cam gear member. A tilt or tilt and telescope steering device may be provided comprising a cam-gear member.
According to an embodiment of the present invention, by reducing the number of parts of the tilt or tele device, it reduces the time and cost of assembly of the product, increases the space utilization, and prevents the occurrence of collision noise between gear teeth when the tilt or tele function is operated. This eliminates the need for gear springs, reducing costs and preventing noise.

Description

[0001] The present invention relates to a tilt or tilt and telescope steering apparatus,

The present invention relates to a tilt or tilt and telescope steering device, and more particularly, to a tilt or tilt and tilt part that reduces the number of parts of the tilt or telescope device, increases space utilization, and prevents noise during operation of the tilt or telescope function. A telescope steering device.

[0004] As demand for drivers has diversified, there has been an increasing demand for driver-oriented intelligent automobiles. One of such trends is that tilting and tilting, which adjusts the relative position of the steering wheel relative to the driver so that the driver can comfortably operate the steering wheel, The installation of the telescopic steering system is gradually expanding. Here, the tilt and telescope steering system means adjusting the position of a steering wheel used in a passenger car, and the adjustment of the position of the steering system includes a tilt motion and a telescope motion.

First, the tilting operation is to adjust the up and down fixed angle of the steering wheel, and the telescope operation is to adjust the distance between the steering wheel and the driver by lengthening or shortening the steering column length.

1 is a perspective view showing a part of a tilt and telescope steering apparatus of a vehicle according to the prior art.

As shown in FIG. 1, a general tilt and telescopic steering apparatus according to the related art includes an outer tube 100 and an inner tube introduced into an outer tube 100 to accommodate a steering shaft 175 connected to a steering wheel 103. 170, the lower bracket 165 for fixing the inner tube 170 to the vehicle body, the mounting bracket 105, which is installed on the upper side of the outer tube 100 and fixed to the vehicle body, is fixed integrally with the outer tube 100 It is formed integrally with the teles bracket 180 and the mounting bracket 105 in which the teles long hole 185 is formed, and the outer side of the tilt bracket 150 and the tilt bracket 150 in which the long tilt holes 110 are formed long. Tilt fixed gear 145 to be formed, the tilt movable gear 140 is engaged with or separated from the tilt movable gear 140, the adjust bolt 130 through the tilt long hole 110, the tilt movable gear 140 Washer 125 and you to secure the cam 135, the cam 135 and the tilt lever 115 120, is configured to include a tilt movable gear 140 and the tilt gear fixed gear spring 142 which is located between (145).

The telescopic operation is completed by releasing the tilt lever 115 and then changing the position of the adjust bolt 130 along the telescopic long hole 185 formed in the teles bracket 180 and then tightening the tilt lever 115.

The tilt operation is completed by tightening the tilt lever 115 after changing the position of the adjust bolt 130 along the tilt long hole 110 after releasing the tilt lever 115. [

When the tilt lever 115 is locked, the tilt fixed gear 145 and the tilt movable gear 140 come into close contact with each other to fix the outer tube 100 and the steering shaft 175. When the tilt lever 115 is released, The tilt movable gear 140 is separated from the tilt fixed gear 145 by the tilting gear 135 so that the outer tube 100 and the inner tube 170 can be moved in a tilting direction with respect to the lower tilting center 160 .

A gear spring 142 is provided between the tilt fixed gear 145 and the tilt movable gear 140 to separate the tilt movable gear 140 and the tilt fixed gear 145 from each other when the tilt lever 115 is disengaged Fitted into the adjust bolt (130).

However, in the case of the conventional tilt and telescope steering device, the time required for the production of the product is increased due to the large number of necessary parts, and the tilt or teles motion is performed while the tilt moving gear and the tilt fixed gear are in close proximity. There was a problem that caused crash noises. In addition, there was a problem that noise is generated in the gear spring mounted between the tilt movable gear and the tilt fixed gear, and when the elastic force of the gear spring is lowered, there was a problem that the tilt or teles motion cannot be performed smoothly.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing background, and has as its object to reduce the time and cost required to produce a product by reducing the number of parts of the tilt or teles device.

In addition, an object of the present invention is to prevent the occurrence of collision noise between the gear teeth during the tilt or tele operation.

In addition, an object of the present invention is to solve the noise problem occurring in the gear spring by the need of the gear spring.

In addition, an object of the present invention is to solve the problem that the tilt or tele operation is not performed smoothly by the elastic force of the gear spring.

The objects of the present invention are not limited thereto, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, a distance bracket surrounding a tube into which a steering shaft is interpolated; A tilt bracket coupled to both sides of the distance bracket and having a tilt hole formed at one side thereof; An adjust bolt installed through the distance bracket and the tilt hole; A tilt hole coupled to one side of the tilt bracket, a tilt hole through which the adjust bolt penetrates, a tilt fixed gear part at both ends, and a tilt fixed cam part formed in the tilt hole direction from the tilt fixed gear part Cam-gear members; And a tilting operation gear portion coupled to the adjust bolt, the tilting operation gear portion being coupled to or released from the tilting fixed gear portion on both sides, and having a tilting operation cam portion formed from the tilting operation gear portion in a direction provided with the fixed cam gear member. A tilt or tilt and telescope steering device may be provided comprising a cam-gear member.

The fixed cam gear member may further include: a support plate having a tilt hole formed at a center thereof; Tilt fixing gears formed at both ends of one side of the support plate in parallel with each other in the longitudinal direction of the tilt hole; And a tilt fixed cam portion which is symmetrical with the tilt hole interposed therebetween, and has a stepped tilting cam portion.

In addition, the actuating cam-gear member may include: a tilting actuating gear portion having a through hole through which one end of the adjust bolt penetrates at the center thereof, and a wing end formed at both sides of the through hole to engage or release the tilting gear portion; And a tilt actuating cam part integrally formed at the wing end in the direction in which the fixed cam-gear member is provided, the tilt actuating cam part moving in contact with the tilt fixed cam part. Can be.

In addition, the tilt fixed gear unit may be provided with a tilt or tilt and telescope steering device, characterized in that the gear has a bar-shaped structure formed on the side facing the tilt hole.

The tilt fixing cam unit may further include one or more inclined surfaces protruding from one surface of the support plate and inclined in a direction in which the tilt fixing gear unit is provided; And at least one plane extending parallel to the one surface at the end of the inclined surface. The tilt or tilt and telescope steering apparatus may be provided.

In addition, a tilting or tilting and telescope steering apparatus may be provided on the other surface of the support plate, wherein the fixing protrusion protrudes and the tilting bracket is provided with a fixing protrusion insertion groove into which the fixing protrusion is inserted.

In addition, a tilt or tilt and telescope steering apparatus may be provided, wherein the gear teeth of the tilt fixed gear portion are oriented and inclined so as to limit the amount of rotation of the actuating cam gear member when coupled with the tilt actuating gear portion. Can be.

According to the embodiment of the present invention, the number of parts of the tilt or tele device is reduced to reduce the time and cost required to produce the product.

In addition, according to an embodiment of the present invention, it is possible to prevent the occurrence of collision noise between the gear teeth during the tilt or teles operation, and to solve the noise problem generated by the gear spring without the need of the gear spring, comfortable and comfortable for the driver It is effective to provide a driving environment.

In addition, according to the embodiment of the present invention, there is an effect that can solve the problem that the tilt or tele operation is not performed smoothly by the elastic force of the gear spring.

1 is a perspective view showing a part of a tilt and telescope steering device of a vehicle according to the prior art;
2 is an exploded perspective view showing a part of a tilt or tilt and telescope steering device of a vehicle according to an embodiment of the present invention;
3 is a perspective view of the stationary cam-gear member and the actuating cam-gear member of FIG.
4 is a plan view from above of the stationary cam-gear member of FIG. 3;
5 is a perspective view of the actuating cam-gear member of FIG. 3;
6 is a plan view from above of the actuating cam-gear member of FIG. 5;
7 and 8 show the position of the stationary cam-gear member and the actuating cam-gear member in the unlocked state;
9 and 10 show the position of the stationary cam-gear member and the actuating cam-gear member in the locked state.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

2 is an exploded perspective view showing a part of a tilt or tilt and telescope steering device of a vehicle according to an embodiment of the present invention. 3 is a perspective view of the stationary cam-gear member and the actuating cam-gear member of FIG. 4 is a plan view from above of the stationary cam-gear member of FIG. 5 is a perspective view of the actuating cam-gear member of FIG. 3. 6 is a plan view from above of the actuating cam-gear member of FIG.

2, the tilt or tilt and telescope steering device of the vehicle according to the embodiment of the present invention is a distance bracket 181, tilt bracket 150, adjust bolt 130, fixed cam-gear member 200 And an actuating cam-gear member 300.

The steering shaft 175, which is connected to the steering wheel 103 (see FIG. 1), is inserted into the tube. The tube may have an outer tube 100 and an inner tube 170, wherein the inner tube 170 is inserted into the outer tube 100, and the steering shaft 175 is connected to the inner tube 170 and outer side. It is interpolated in the tube 100.

The distance bracket 181 has a structure surrounding the outer tube 100.

The tilt bracket 150 is coupled to both sides of the distance bracket 181 and has a structure in which the tilt long hole 110 is formed on one side.

Although not shown in FIG. 2, a teles bracket (see 180 of FIG. 1) having a long tele hole may be further coupled between the distance bracket 181 and the tilt bracket 150.

The adjust bolt 130 is installed through the distance bracket 181 and the tilt long hole 110, and the tilt lever 115 is coupled to one end thereof, and the washer 125 and the nut 120 are coupled to the other end thereof. . The locked state or the released state is made according to the rotation direction of the tilt lever 115. In this locked state, the tilt bracket 150 is narrowed so that the positions of the outer tube 100 and the steering shaft 175 are completely fixed, and the unwinding state of the tilt bracket 150 is returned to its original shape and widened. It is a state which can change the position of 100, the steering shaft 175, etc. to a tilt direction. It has the same meaning below.

The fixed cam gear member 200 is coupled to one side of the tilt bracket 150, and a tilt hole 201 through which the adjust bolt 130 penetrates is formed at the center thereof, and the tilt fixed gear part 230 is provided at both ends thereof. And a tilt fixing cam portion 210 is formed in the direction of the tilt hole 201 from the tilt fixing gear portion 230. More specifically, referring to FIGS. 2, 3, and 4, the fixed cam gear member 200 includes a support plate 202, a tilt fixed gear unit 230, and a tilt fixed cam unit 210.

The support plate 202 is provided in a plate shape in which a tilt hole 201 is formed at the center. Tilt fixing gears 230 formed in parallel with each other in the longitudinal direction of the tilt hole 201 are formed at both ends of one surface A of the support plate 202, and the fixing protrusion 203 is protruded from the other surface thereof. The fixing protrusion 203 is inserted into the fixing protrusion insertion groove 151 formed in the tilt bracket 150 shown in FIG.

The tilt fixing gear part 230 has a bar-shaped structure in which gear teeth are formed on a side facing the tilt hole 201. The tilting gears of the fixed gear unit 230 have a directional and inclined structure. For example, referring to the fixed cam-gear member 200 shown in FIG. 3, the tilt fixed gear part 230 on the left has a shape in which the gear teeth gradually protrude upward, and the tilt fixed gear on the right side. The portion 230 has a shape in which the gear teeth gradually protrude further toward the downward direction. Thus, the cam gear member 300 which rotates counterclockwise by forming the gear value of the tilt fixed gear part 230 is further provided that the end of the wing end 330 is fully inserted into the tilt fixed gear part 230. Since it is impossible to rotate abnormally, there is no need for a separate stopper for limiting the amount of rotation of the actuating cam gear member 300. Here, the counterclockwise direction is based on the direction in which the fixed cam gear member 200 and the actuating cam gear member 300 are assembled to the tilt bracket 150, as shown in FIG. .

Referring to FIGS. 3 and 4 again, the tilt fixing cam part 210 is symmetrical with each other with the tilt hole 201 therebetween, and is formed in a stepped structure. More specifically, the tilt fixing cam part 210 is formed in a structure having an inclined surface 211 and a plane 213. The inclined surface 211 is further protruded from one surface A of the support plate 202 and is formed to be inclined in the direction in which the tilt fixing gear part 230 is provided. The plane 213 extends in parallel with one surface A of the support plate 202 at the end of the inclined surface 211 to meet the tilt fixing gear 230.

Referring back to FIG. 2, the actuating cam-gear member 300 is coupled to the adjust bolt 130, and is provided with a tilt actuating gear portion 302 coupled to or released from the tilting fixed gear portion 230 on both sides. The tilt actuating gear unit 302 is provided with a tilt actuating cam part 310 formed in the direction in which the fixed cam gear member 200 is provided.

More specifically, referring to FIGS. 2, 5 and 6, the actuating cam gear member 300 has a through hole 303 through which one end of the adjust bolt 130 penetrates, and a through hole. Tilt actuating gear portion 302 having a wing end 330 coupled to or released from the tilting fixed gear portion 230 on both sides of the 303, and a wing end 330 in a direction provided with the fixed cam-gear member 200. Is formed integrally with, and includes a tilting operation cam portion 310 to move in contact with the tilting fixed cam portion 210. Meanwhile, a protruding end 301 inserted into the tilt lever 115 may be further formed at the center of the tilt operating gear part 302, and the through hole 303 may include the tilt operating gear part 302 and the protruding end 301. It can be formed through.

The wing end 330 has a structure extending in opposite directions with the through hole 303 interposed therebetween, and the end of the wing end 330 is pointed to be inserted between the gear teeth of the tilting fixed gear part 230. It has a shape.

The tilt actuating cam portion 310 is integrally formed at the wing end 330 in the direction in which the fixed cam-gear member 200 is provided. In contrast, the tilt operation cam unit 310 may be formed in a structure separated from the wing end 330. The tilt operation cam part 310 may have a flat shape, or may have a shape in which the width of the tilt operation cam part 310 increases as the distance from the through hole 303 increases. The tilting cam part 310 moves in contact with the tilting cam part 210 when the actuating cam-gear member 300 is rotated in the process of performing the tilt or teles motion.

Meanwhile, as described above, the tilting cam portion 210 is formed on the inclined surface 211 and the plane 213, and the tilting cam portion 310 is formed on the wing end 330, thereby forming the tilting cam portion 300 of the actuating cam-gear member 300. According to the rotation, the tilt operation cam unit 310 may selectively create a locked state and a released state based on the inclined surface 211.

In addition, although not shown in the drawings, the tilt fixing cam unit 210 may be formed so that two or more inclined surfaces 211 and the plane 213 form a multi-stage structure. Thus, by forming the tilt fixed cam portion 210 to have a multi-stage structure, it is possible to create a half-locked state, which is a state between an unlocked state and a locked state, and the half-locked state enables the driver to quickly and easily the outer tube. And the position of the steering shaft can be changed.

7 and 8 show the positions of the stationary cam-gear member and the actuating cam-gear member in the unlocked state. 9 and 10 show the position of the stationary cam-gear member and the actuating cam-gear member in the locked state.

Referring to FIGS. 2, 3, 7 and 8, as the driver rotates the tilt lever 115 in one direction, the wing end 330 of the tilt actuating gear part 302 of the actuating cam-gear member 300. Is released between the tilting gear 230 of the fixed cam-gear member 200 and the tilting cam portion 310 of the actuating cam-gear member 300 is fixed to the tilt of the fixed cam-gear member 200. When the cam unit 210 is released, the pressing force of the fixed cam gear member 200 which narrows the tilt bracket 150 by pressing one side of the tilt bracket 150 is released, so that the tilt function or the teles function can be operated.

Meanwhile, referring to FIGS. 2, 3, 9, and 10, when the driver wants to fix the position of the outer tube 100 after completing the tilt function or the tele function, the tilt lever 115 is rotated in the other direction. Let's go. Accordingly, when the tilting cam portion 310 of the actuating cam gear member 300 moves on the plane 213 through the inclined surface 211 of the tilting cam portion 210, the fixed cam-gear member 200 is moved. Presses again one side of the tilt bracket 150, the widened tilt bracket 150 is narrowed again to fix the position of the outer tube (100).

At this time, the actuating cam-gear member 300 is provided only until the wing end 330 of the tilt actuating gear part 302 is inserted between the gear teeth of the tilting gear part 230 of the fixed cam-gear member 200. Because of the rotation, there is no need for a separate stopper to limit the amount of rotation of the actuating cam-gear member 300.

According to an embodiment of the present invention having such a structure and shape, the tilt fixed gear, the tilt movable gear and the cam part, which are conventionally manufactured / assembled as separate parts for implementing the tilt or teles function, are operated with the fixed cam gear member. The reduction of two cam-gear members reduces the time and cost of assembly and increases the space utilization.

In addition, when the tilting or teles function is activated, the tilting gear portion of the fixed cam gear member and the wing end of the actuating cam gear member are completely released and there is no possibility of noise caused by the collision between them. There is an effect to solve the problem of collision noise between the gear teeth of the tilt fixed gear and the gear teeth of the tilt movable gear.

In addition, since the gear spring that is conventionally coupled between the tilt fixed gear and the tilt movable gear becomes unnecessary, noise generated in the gear spring is eliminated, and the cost can be reduced.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: outer tube 110: tilt long hole
120: nut 130: adjust bolt
150: tilt bracket 170: inner tube
200: fixed cam gear member 201: tilt hole
202: support plate 203: fixing protrusion
210: tilt fixed cam portion 230: tilt fixed gear portion
300: operating cam gear member 301: tilt operating gear portion
310: tilt operation cam 330: wing end

Claims (7)

A distance bracket surrounding a tube into which a steering shaft is interpolated;
A tilt bracket coupled to both sides of the distance bracket and having a tilt hole formed at one side thereof;
An adjust bolt installed through the distance bracket and the tilt hole;
A tilt hole coupled to one side of the tilt bracket, a tilt hole through which the adjust bolt penetrates, a tilt fixed gear part at both ends, and a tilt fixed cam part formed in the tilt hole direction from the tilt fixed gear part Cam-gear members; And
An actuating cam coupled to the adjust bolt, having a tilting actuating gear portion coupled to or released from the tilting fixed gear portion on both sides, and a tilting actuating cam portion provided from the tilting actuating gear portion in a direction provided with the fixed cam-gear member; A tilt or tilt and telescope steering device comprising a gear member. The method of claim 1,
The fixed cam gear member is
A support plate having a tilt hole formed in a center thereof;
Tilt fixing gears formed at both ends of one side of the support plate in parallel with each other in the longitudinal direction of the tilt hole; And
Tilt or tilt and telescope steering device, characterized in that it comprises a tilt fixed cam portion symmetrical with the tilt hole in between. 3. The method of claim 2,
The actuating cam gear member is
A tilt operating gear part having a through hole through which one end of the adjust bolt penetrates and a wing end formed at both sides of the through hole, the wing end being engaged with or released from the tilt fixed gear part; And
A tilting or tilting and telescope steering apparatus, wherein the fixed cam-gear member is integrally formed at the wing end in a provided direction, the tilting cam portion moving in contact with the tilting fixed cam portion. The method according to claim 2 or 3,
The tilt fixed gear part,
Tilt or tilt and telescope steering device, characterized in that it has a bar-shaped structure formed with gear teeth on the side facing the tilt hole. The method according to claim 2 or 3,
The tilt fixed cam unit,
At least one inclined surface protruding from one surface of the support plate and inclined in a direction in which the tilt fixing gear part is provided; And
And at least one plane extending parallel to the one surface at an end of the inclined surface. The method according to claim 2 or 3,
Fixing protrusions are formed on the other surface of the support plate,
Tilt or tilt and telescope steering device, characterized in that the fixing projection insertion groove is formed in the tilt bracket is inserted into the fixing projection. 5. The method of claim 4,
Tilt or tilt and telescope steering device characterized in that the gear teeth of the tilt fixed gear portion is directional and inclined so as to limit the amount of rotation of the actuating cam-gear member when combined with the tilt actuating gear portion.

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