KR100746725B1 - Wire cable operation structure of telescopic column - Google Patents

Abstract

The present invention is provided with a cable fixed to a lever fixing bolt, one end of which is connected to the lock body engaged with the tele gear, and the other end of which is freely installed on the bracket, and the lever is connected to the lever fixing bolt to push the lever. A wire cable operation structure of a telescopic column in which the length of the cable is changed by lifting or pulling to lift the lock body, thereby releasing the engagement with the telesgear to perform the telesping function, in a direction perpendicular to the teles tube on the bracket. Is installed but one end is provided with a handle and the other end is provided with a lever to which the wire is connected, the distance from the lever fixing bolt to the handle in installing a lever fixing bolt for hinge freely hinged lever at one point of the lever Is defined as the control panel, and the connection part of the lever fixing bolt to the wire When defining the distance to the movable portion, the length of the movable portion relates to a wire cable operating structure of the telescopic column, characterized in that installed in a point longer than the length of the operation portion.

Telescopic, Cable, Operating Structure

Description

Wire cable operating structure of telescopic column {WIRE CABLE OPERATING STRUCTURE OF TELESCOPIC COLUMN OF STEERING SYSTEM}

1 is a partial cross-sectional view of a wire cable operating structure of a typical telescopic column.

2 is a plan view of a wire cable operation structure of a conventional telescopic column

3 is a plan view of a wire cable operating structure of a telescopic column according to the present invention;

<Explanation of symbols for the main parts of the drawings>

220: teles gear 230: rock body

235: protrusion 240: teles tube

245: bracket 247: fixing bracket

250: cable 255: wire

260: lock spring 270: housing

280: lever 282: lever fixing bolt

290: direction turning bolt 295: roller

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic device for a steering column for a vehicle. The present invention relates to a wire cable operation structure of a telescopic column which can reliably and smoothly operate a teles gear by increasing a feed amount of a cable wire with a simple structure in a limited space.

In general, the steering column for a vehicle is installed inside the driver's seat to transmit the rotational force generated from the steering wheel to the wheels through the gearbox, and adjusts the inclination direction to adjust the position of the steering wheel according to the driver's physical condition. There is provided a tilt device for the telescopic device and an axial adjustment.

As shown in FIG. 1, the telescopic apparatus has a tapered block 110 having tapered surfaces on both sides, a tapered surface on one side thereof, and a teles gear 120 formed on the other side thereof with a gear, and one side of which is tapered. The guide block 130, a geared teles tube 140, a taper block connecting the cable 150, the lock spring 160 for the cable return, and the teles housing 170.

The teles tube 140 has a gear formed on one side thereof, and the teles gear 120 is engaged with the gear. That is, in order to move the teles tube 140 up and down within the housing, the engagement with the teles gear 120 must be separated.

The other side of the tele-gear gear 120 having a gear formed on one side thereof is formed with a tapered surface having a T-shaped cross section, and the tapered block 110 having a tapered surface formed on both sides thereof is assembled.

One side surface of the tapered block 110 is tapered, and the guide block 130 having a cross section of the tapered surface is assembled.                         

The tapered block 110 is connected to the cable 150, and a lock spring 160 for returning is installed at one side of the tapered block 110.

In the conventional telescopic device having the above configuration, when the driver pulls the cable 150 when the driver tries to separate the teles gear 120 from the fitting portion of the teles tube 140, the teles gear 120 of the tapered block 110 By moving upward by the data surface and separated from the gears of the teles tube 140 can be adjusted by moving the teles tube 140 in the longitudinal direction. When the cable 150 is released, the cable 150 is released in the opposite direction by the force of the teles spring 160, so that the teles gear 120 meshes with the teeth of the teles tube 140 to move the longitudinal direction of the teles tube 140. .

However, in the above structure, when the displacement caused by the lever of the cable 150 is small, the amount of horizontal movement of the tapered block 110 is reduced, and thus the amount of vertical movement of the teles gear 120 is reduced. For example, the tele gear 120 may not be completely detached from the tele tube 140. In order to facilitate the separation, the angle of the taper may be increased, but in this case, the friction angle may be out of order and the force of the lock spring 160 may be increased to support the teles gear 120. However, the teles spring force is related to the lever actuation force and cannot be increased by a certain amount.

Referring to the operation structure of the cable in more detail as shown in Figure 2, the lever 180 is rotated around the lever fixing bolt 182 so that the wire cable 155 is fixed to the bracket 145 The outside is fixed to the cable bracket 142, the wire 155 is fixed to the lever 180. The lever 180 is rotated about the lever fixing bolt 182 and the length of the wire bracket 142 fixed to the cable bracket 142 and the lever 182 is displaced by the amount of rotation. Here, the radius of the portion where the wire 155 is fixed at the rotation center of the lever 180 is small, so that the length displacement is small. To engage and disengage the teles gear 120 with this length displacement amount, a large force is required to operate the teles gear 120 when the length displacement is small. In addition, the larger the radius from the operating center of the lever 180, the greater the length displacement. In the constrained size of the telescopic column, the wire cable installation structure has difficulty in increasing the displacement of the wire 155. .

The present invention is to solve the problems as described above, the wire cable operation structure of the telescopic column to increase the amount of transfer of the cable wire with a simple structure in the limited space of the telescopic steering column to reliably and smoothly operate the teles gear To provide.

The present invention is provided with a cable fixed to the lever fixing bolt, one end is connected to the rock body is meshed with the tele gear and the other end is rotatably installed on the bracket, in order to achieve the above object, the lever fixing bolt A wire cable operation structure of a telescopic column in which a telescopic function is performed by releasing a state of engagement with a telesgear by lifting the lock body by changing the length of the cable by connecting a lever and pushing or pulling the lever. The lever is installed in a direction orthogonal to the teles tube, one end of which is provided with a handle, and the other end is provided with a lever to which a wire is connected, and at one point of the lever, a lever fixing bolt for hinge-freely fixing the lever is provided. The distance from the fixing bolt to the handle is defined as the control panel. When at still bolt to define a distance to the movable bridle and the wire connecting portion, and provides a wire cable operated structure of the telescopic column, it characterized in that the length of the moving part, which is installed in the longer branch length of the operation.

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

1 and 3, the wire cable operation structure of the telescopic device according to the present invention includes a tapered block 210 having tapered surfaces formed on both sides thereof, and a tapered surface formed on one side thereof, and the other side formed of a gear. The teles gear 220, the guide block 230 tapered on one side, the teles tube 240 in which the gear is processed, the cable 250 connecting the tapered block, and the lock spring 260 for returning the cable. And a teles housing 270.

The teles tube 240 has a gear formed on one side thereof, and the teles gear 220 is engaged with the gear. That is, in order to move the teles tube 240 up and down in the housing, the engagement with the teles gear 220 must be separated.

The other side of the tele-gear gear 220 having a gear formed on one side thereof is formed with a tapered surface having a T-shaped cross section, and the tapered block 210 having tapered surfaces formed on both sides thereof is assembled to the tapered surface.

One side surface is tapered on the upper portion of the tapered block 210, and the guide block 230 having a cross section of the tapered surface is assembled.

The tapered block 210 is connected to one end of a wire 255, which is a core wire in the cable 250, and the other end of the wire 255 is disposed at a predetermined distance away from the tapered block 220. It is connected to the lever 280 installed in.

The lever 280 is installed at right angles to the width direction of the bracket 245 as the rod-shaped bar ie, the longitudinal direction of the teles tube 240, the predetermined portion of the lever 280 is fixed to the side of the bracket 245 The bolt 282 is rotatably fixed. The lever 280 is connected to the handle 284 at one end of the lever fixing bolt 282 and the other end is connected to the wire 255 at the connection portion 286 with the wire. The other end of the lever 280 is located approximately at the side end of the bracket 145 in the above. That is, the distance from the lever fixing bolt 282 to the handle 284 is defined as the length d of the operation portion, and the distance from the lever fixing bolt 282 to the connection portion 286 with the wire length d '. ), The lever fixing bolt is installed at a point where the length d 'of the movable part is longer than the length d of the operating part. When the lever 280 is rotated using the lever fixing bolt 282 as the rotating shaft, the other end of the lever 280 may have the largest displacement within a range not exceeding the width of the bracket 245 so as not to interfere with surrounding components. It is preferable to be connected to the wire 255 at the side end of the bracket 245 farthest from the lever fixing bolt 282 to be able to. Here, the length of the operation part can be made relatively shorter than the length of the moving part, but since the handle is operated by manpower, the ratio of the moving part and the operation part should be designed in consideration of the manpower so that it is not too hard to operate.

At the other end of the lever 280 and the connection portion of the wire 255, that is, the side of the connection portion 286 with the wire, a direction change fixing bolt for changing the direction of the force acting on the wire 255 when the lever 280 is pulled ( 290 is installed, and a roller 295 that is freely rotated around the direction fixing bolt 290 is installed on the outer circumference of the direction fixing bolt 290, and a part of the wire 255 is formed on the outer circumference of the roller 295. In the wound state, the other end of the wire 255 and the lever 280 is connected.

The cable fixing bracket 247 is fastened to the bracket 245 on one side of the turning bolt 290 to fix the cable 250 to the cable fixing bracket 247.

Referring to the wire cable operating structure according to the present invention configured as described above are as follows.

Pulling the handle 284 formed at one end of the lever 280 to one side, while the lever 280 is rotated by the lever fixing bolt 282 as the rotation axis, the other end of the lever 280 in the opposite direction to the movement direction of the handle Is moved, and the wire 255 connected with the other end of the lever 280 is pulled. That is, the length of the movable part is longer than that of the operation part with the lever fixing bolt as the shaft, and when the handle is pulled, the wire is pulled longer than the length of the operation part.

At this time, the wire 255 is rotated together with the roller 295, the tele gear gear 220 is raised as the taper block 210 connected to the tip of the wire 255 is pulled up and the teles gear 220 is engaged with the tele gear 220 The tube 240 is released so that the length of the teles tube 240 is adjustable.

When the handle is released after the teles tube 240 is adjusted in length, the wire 255 may be returned to its original position by the restoring force of the lock spring 260 installed between the taper block 210 and the cable 250. Since the tele gear gear 220 is pushed down and engaged with the tele tube 240, the tele tube 240 is fixed in the tele adjusted state.

As described above, according to the present invention, the lever is fixed as the rotation axis of the lever 280 to maximize the length displacement of the lever 280 in the bracket 245 in which the lever 280 is mounted when the handle is pulled out. Wire 255 is installed at one end of the bracket 245, and the other end of the lever 280 is located at the other end of the bracket 245 farthest from the bracket 245, and the wire 255 for operating the teles gear 220 substantially. ). Since the wire 255 is flexible and cannot be bent structurally, the turning bolt 290 is used, and the turning bolt 290 is provided with a roller 295 to wind the wire 255 there. It is combined with the other end of the lever 280.

Therefore, even if the handle is pulled a little, the displacement of the lever 280 can be increased, and the pulling length of the wire 255 becomes long. That is, as the ascending distance of the tapered block 210 connected to the wire 255 is increased, the release of the tapered block 210 and the teles gear 220 engaged with the taper block 210 can be quickly and reliably.

As described above, according to the present invention, in the description of the wire cable for operating the tele gear, the end of the lever and the wire cable are connected at the side end of the bracket so that the displacement of the lever connected to the wire cable can be maximized. By installing a turning bolt to change the direction of the wire cable on the connection side at the end of the cable and the lever, the length of the lever can be increased even if the handle is pulled a little, so that the length of the wire cable can be increased. Therefore, the moving distance of the tapered block connected to the wire cable is increased, so that the amount of increase in the teles gear connected to the tapered block is increased, so that the teles tube engaged with the teles gear can be reliably released.

Claims (4)

One end is connected to the lock body engaged with the tele gear, and the other end is provided with a cable fixed to the lever fixing bolt that is freely installed on the bracket, the operation to push or pull the lever by connecting the lever to the lever fixing bolt In the wire cable operation structure of the telescopic column in which the length of the cable is changed and the lock body is lifted to release the engagement with the telesgear to perform the teles function. In the direction orthogonal to the telestube is installed on the bracket, one end of the handle is installed and the other end is provided with a lever to which the wire is connected, and in one point of the lever to install a lever fixing bolt for hinge freely hinged lever, When the distance from the lever fixing bolt to the handle is defined as the length d of the operation portion, and the distance from the lever fixing bolt to the connection portion with the wire is defined as the length d 'of the movable portion, the length d' The wire cable operation structure of the telescopic column, characterized in that the lever fixing bolt is installed at a point longer than the length (d) of the operation unit. The method of claim 1, The wire cable operation structure of the telescopic column, the side portion of the connection portion with the wire further comprises a turning bolt installed to change the direction of the wire movement at one point. The method of claim 2, The outer periphery of the redirection fixing bolt wire cable operation structure of the telescopic column characterized in that it further comprises a roller freely rotated about the redirection fixing bolt to the axis so that it can be smoothly changed when the length is variable. The method of claim 2, One side of the turning bolt is integrally coupled with the bracket so as to increase the displacement of the lever, the wire cable of the telescopic column characterized in that it further comprises a cable fixing bracket coupled to the cable protruding a predetermined amount to the outside of the bracket Working structure.

Images