KR101720314B1 - Driving appratus for tilting and telescoping type steering column - Google Patents

Abstract

[0001] The present invention relates to a tilt and telescopic steering drive apparatus, and more particularly to a tilt and telescopic steering driving apparatus which is provided with a main housing fixed to a small section of a vehicle, A sliding column housing rotatably mounted on the sliding column housing and rotatable about a rotation axis provided in a direction orthogonal to the longitudinal direction of the sliding column housing, And a locking mechanism for locking the locking lever in a locked state when the lock lever is pivoted to a locked state in which the lock lever is pivoted about the rotation axis of the operation lever coaxially, Is inserted into the machined guide slot, And the telescoper is rotated to be released from the guide slot when the vehicle is in the lock state, thereby providing an advantage that stability of the driver can be ensured in the event of a vehicle collision.

Description

≪ Desc / Clms Page number 1 > Driving Apparatus for Tilting and Telescoping Steering Columns &

The present invention relates to a tilt and telescopic steering column driving apparatus, and more particularly, to a tilt and telescopic steering column capable of constantly absorbing a collision energy in a collision direction when a steering column is collapsed due to occurrence of a collision accident of a vehicle And a drive device for the column.

In general, the tilt and telescopic steering apparatus is a type of variable steering wheel, and the tilt function is a function of varying the angle of the steering wheel so as to match the physique of the driver and the posture of the driver. The telescopic function, Thereby making it possible to expand and contract the length.

Conventionally, such tilt and telescopic functions have been separately driven by separate operating methods, but they are complicated to operate and are replaced by integral driving methods. However, in the case of the integral drive system, the overall structure becomes very complicated, and since the longitudinal movement of the operating lever is not allowed, a separate space is required for ensuring the movement of the operating lever for tilt and telescopic operation And the design of the panel under the instrument panel is restricted.

In addition, since the stopper provided on the tilt bracket is fixedly installed and does not operate in conjunction with the operation of the operation lever, the stopper is not broken when the steering column is collapsed due to collision of the vehicle, There is a problem with insufficient protection.

On the other hand, Korean Patent Registration No. 10-0720027 discloses a prior art of the technical field to which the present invention belongs.

Korean Patent No. 10-0720027 (Announcement of May 18, 2007)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a tilt and telescopic steering column drive device capable of constantly absorbing the impact energy in the collision direction when the steering column collapses due to the occurrence of a vehicle collision accident. And the like.

A preferred embodiment of the driving apparatus for a tilt and telescopic steering column according to the present invention comprises a main housing fixed to a small section of a vehicle and a main housing disposed inside the main housing, A sliding column housing whose length is elongated and contracted, an unlocked state in which the telemetry and telein operation is enabled while being rotated about a rotation axis provided in a direction orthogonal to the longitudinal direction of the sliding column housing, And an operating lever which is pivoted about a rotational axis of the operating lever so as to be in a locked state in which the operating state of the operating lever is switched to a locked state in which the operating state of the operating lever To the sliding column housing, The guide slot is inserted into the slotted guide slot of the guide slot and is released to the outside of the guide slot so as not to affect the sliding direction of the sliding column housing in the event of a collision accident of the vehicle during the locking operation of the operating lever And a telescoper rotated.

The sliding column housing includes an inner tube installed inside the main housing and a column housing externally facing the inner tube, and the guide slot is slid in the longitudinal direction between the main housing and the inner tube And may be formed in the column housing.

The telescoper may be provided with a through hole through which the rotation shaft of the operation lever passes, and the rotation shaft and the through hole may have a polygonal cross-section so that the telescoper rotates when the operation lever is operated.

The rotation shaft of the operating lever may be provided with a spring spring whose one end is supported by the main housing and the other end is fixed to the telostopper and elastically supporting the telostopper when the telostopper is rotated.

The rotary shaft of the operating lever may include a first clip ring for preventing axial movement of the telostopper and a second clip ring for preventing axial movement of the spring spring.

The main housing is provided with a guide block for guiding insertion and removal of the telostopper into and from the guide slot when the operation lever is operated and preventing noise from being generated when the telostopper is inserted into the guide slot .

Further, the guide block may be formed in a " C " shape which is opened in the radial direction corresponding to the longitudinal direction of the guide slot on the rotation axis of the operation lever.

In addition, the guide block may be made of a plastic material that absorbs impact with the telescopers.

According to a preferred embodiment of the driving device for a tilt and telescopic steering column according to the present invention, when the steering column collapses due to occurrence of a collision accident of the vehicle in the locked state of the operating lever, The collision direction impact energy absorption is not influenced, and at the time of switching the unlocking state of the operating lever, the tele-stopper and the tele-out operation are restricted by the telescoper, and the operation stability can be ensured I have.

1 is a perspective view showing a preferred embodiment of a tilting and telescopic steering column driving apparatus according to the present invention,
Fig. 2 is an enlarged perspective view of the portion A in Fig. 1,
Fig. 3 is an exploded perspective view showing the engagement relationship of the telescoper, the guide block, and the spring spring in the configuration of Fig. 1,
Fig. 4A and Fig. 4B are a side sectional view and a front sectional view showing the operating state of the telescopic device in the locking state switching of the operating lever in the configuration of Fig. 1,
5A and 5B are a side sectional view and a front sectional view showing the operating state of the telescoper in the unlocking state of the operating lever in the configuration of FIG.

Hereinafter, a preferred embodiment of a tilting and telescopic steering column driving apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a preferred embodiment of a tilt and telescopic steering column driving apparatus according to the present invention. FIG. 2 is an enlarged perspective view of a portion A in FIG. 1, , The guide block, and the spring spring.

1 to 3, a driving apparatus for a tilt and telescopic steering column according to the present invention includes a main housing 10 fixed to a fixed portion of a vehicle, a main housing 10 fixed to the main housing 10, And sliding column housings 30 and 90 which are disposed inside the housing 10 and extend and contract in length according to the tele direction in the user's tele-out and tele-in operations.

The main housing 10 serves to fix the driving device of the tilt and telescopic steering column according to the present invention to the small section of the vehicle. The main housing 10 is used not only for the telemetry of the steering column but also for the tilting operation of the steering column Tilt means 20 are also provided.

The tilting means 20 moves the rotary shaft 41 of the operation lever 40 such that the tilting operation can be performed when the locked state is released by the operation of the operation lever 40 The tilting operation is performed when the mutual engagement of the guide gear plate 22 and the moving gear plate 21 provided on the stage is released and is locked by the operation of the operation lever 40 The guide gear plate 22 and the moving gear plate 21 are engaged with each other.

The tilting means 20 is provided in the tilting bracket 13 of the main housing 10 so that when the vehicle collision occurs an impact between the inner tube 90 and the column housing 30 The present invention is not limited to the instantaneous length retracting function for absorbing the tilt and telescopic steering column. Therefore, detailed description of the coupling relationship and the operation of the tilt and telescopic steering column driving apparatus according to the present invention will be omitted.

A preferred embodiment of the driving device for a tilt and telescopic steering column according to the present invention includes a rotating shaft (not shown) installed in a direction orthogonal to the longitudinal direction of the sliding column housings (30, 90) 41), and an operation lever (40) for switching to an unlocked state in which the tele-out and tele-operation is possible and a locked state in which the tele-out and tele-operation are disabled .

The operating lever 40 is exposed to the vehicle so that the driver can operate the steering wheel directly by the driver, and switches the state so that the driver adjusts the inclination and length of the steering column to match his / her body shape.

1 to 3, the driving device for a tilt and telescopic steering column according to the present invention is rotated by being coaxial with the rotating shaft 41 of the operating lever 40, The sliding column housings (30, 90) are provided with the teletext and teletype distances so that the teletext and teletype distances of the sliding column housings (30, 90) when the operating lever (40) The slidably inserted guide slot 31 is inserted into the slidable guide slot 31. When the operating lever 40 is operated in the locked state, the sliding direction of the sliding column housings 30, And a telescoper (50) rotated to be detached outside the guide slot (31).

The sliding column housings 30 and 90 may include an inner tube 90 installed inside the main housing 10 and a column housing 30 externally covering the inner tube 90.

More specifically, the column housing 30 is directly connected to a first steering shaft S1 which is a rotary shaft 41 of the steering column, and the inner tube 90 is connected to a second The first steering shaft S1 and the second steering shaft S2 are directly connected to the steering shaft S2 so that the first steering shaft S2 and the second steering shaft S2 are connected to each other by a pin sliding insertion method by a long hole or a spline coupling method by serration, And is connected by a connector of a non-city for connection.

The guide slot 31 may be formed in the column housing 30 slidably moved between the main housing 10 and the inner tube 90 in the longitudinal direction.

An opening slot 14 is formed in the main housing 10 to expose the column housing 30 which is slid inside and the guide slot 31 formed in the column housing 30 is also inserted into the opening slot 14 To the outside.

The main housing 10 includes a main bracket 11 directly fixed to the main body of the vehicle body and a tilt bracket 13 vertically provided on both left and right sides of the main bracket 11 for the tilting operation. .

The opening slot 14 is elongated in the longitudinal direction on the upper surface of the main bracket 11 provided between the tilt brackets 13 and the rotation axis 41 of the operation lever 40 is connected to the tilt bracket 11 13 and a mounting block 12 protruding from left and right sides of the upper surface of the main bracket 11.

The telescoper 50 is rotatably installed on the rotary shaft 41 of the operation lever 40 so as to coaxial the rotary shaft 41 of the operation lever 40 passing through the mounting blocks 12 .

1 to 3, one end of the telescoper 50 is inserted into the rotation shaft 41 of the operation lever 40 to be a rotation shaft And the other end is inserted into the guide slot 31 or separated from the guide slot 31 while being pivoted about the one end as a pivot shaft.

The telescoper 50 is provided with a through hole 51 through which the rotation axis 41 of the operation lever 40 passes and the rotation axis 41 and the through hole 51 are formed in the telescoping direction of the operation lever 40, The telescopers 50 may be formed to have a polygonal cross-section so that the telescopers 50 are rotated in conjunction with each other.

On the other hand, the rotary shaft 41 of the operating lever 40 is fixed to the tilting bracket 13 of the tilting bracket 13 which is located on the opposite side with respect to the tilting bracket 13 when the operation lever 40 is in the unlocked state. The moving gear plate 21 must be moved axially from the guide gear plate 22 so that the gear engagement is released. Therefore, when the operation lever 40 is operated, the telescoper 50 may also slip on the rotation axis 41 of the operation lever 40 so as to move out of the guide slot 31. [

In the preferred embodiment of the tilt and telescopic steering driving apparatus according to the present invention, one end is supported by the main housing 10 and the other end is fixed to the telostop 50, and when the telostop 50 is rotated, And may further include a spring spring 60 interposed on the rotating shaft 41 of the operating lever 40 so as to elastically support the stopper 50.

The spring spring 60 has one end supported on the mounting block 12 side near the operation lever 40 and the other end fixed to the telescoper 50 so that the rotation shaft 41 The telescoper 50 is elastically supported on the telescoping member 50 in a direction opposite to the operation lever 40 and is further supported by the telescopers 50 in a direction away from the guide slot 31 during a rotation operation of the operation lever 40 50 to be resiliently supported.

However, the provision of the spring 60 alone can not prevent the teleostopper 50 from completely slipping on the rotary shaft 41 of the operation lever 40, Can not be prevented. The rotary shaft 41 of the operating lever 40 is provided with the first clip ring 80 and 81 for supporting the side portion of the telescoper 50 so as to prevent the telescoper 50 from moving in the axial direction, A second clip ring 80, 82 for preventing axial movement of the spring spring 60 can be interposed.

The first clip rings 80 and 81 and the second clip rings 80 and 82 are formed in a " C " shape so as to be inserted and fitted in the center direction from the outside of the rotation axis 41 of the operation lever 40 And a first clip groove and a second clip groove into which the first clip rings 80 and 81 and the second clip rings 80 and 82 are inserted are formed on the rotary shaft 41 of the operation lever 40 May be formed.

The telescopic stopper 50 moves along the rotation axis 41 of the operation lever 40 while being disengaged from the guide slot 31 when the operation lever 40 is operated to switch to the locked state, 31 to a side where the operation lever 40 and the spring spring 60 are provided.

Conversely, when the operation lever 40 is manipulated to be switched to the unlocked state, the telescoper 50 is rotated in the direction of the rotation axis 41 of the operation lever 40, And is simultaneously inserted into the guide slot 31 while being moved a predetermined distance to the other side.

The main housing 10 is provided with a guide slot 31 for guiding insertion and removal of the telescopter 50 into and out of the guide slot 31 during operation of the operation lever 40, And a guide block 70 for preventing noise from being generated when the telostop 50 is inserted.

1 to 3, the guide block 70 includes a plurality of guide rods 41 extending in the radial direction corresponding to the longitudinal direction of the guide slot 31 at the rotation axis 41 of the operation lever 40, Quot; shape.

The guide block 70 restricts the excessive insertion of the telescoper 50 and prevents the occurrence of a noise generation phenomenon that may occur in the inserting process of the telescoper 50 into the guide slot 31, The stopper 50 is prevented from being in contact with the stepped portion 52 which is stepped out of the other end of the telescoper 50.

Therefore, the guide block 70 may be made of a plastic material that absorbs impact with the telostop 50.

4A and 4B are a side sectional view and a front sectional view showing an operating state of the telescoper when the locking state of the operating lever is changed in the structure of Fig. 1, Figs. 5A and 5B are views showing the state of unlocking the operation lever Sectional side view and front cross-sectional view showing the operating state of the telescopic stopper.

The operation of the tilting and telescopic steering driving apparatus according to the present invention will be briefly described with reference to the accompanying drawings (FIGS. 4A to 5B).

4A and 4B, in the locked state in which the tilting operation by the driver by the operation lever 40 and the tele-operation and the tele-operation by the operation lever 40 are impossible, The telescoper 50 is disengaged from the guide slot 31 so as not to affect the collision direction impact energy absorption of the steering column.

4A and 4B, the telescoper 50 is positioned at a predetermined distance from the operation lever 40 and the spring spring 60, as shown in FIGS. 4A and 4B.

5A and 5B, when the driver rotates the operation lever 40 in the direction of the arrow for the tele-out and tele-operation, the operation lever 40 is moved in accordance with the rotation operation of the operation lever 40 The other end of the telescoper 50 is guided by the guide block 70 while the telescoper 50 is moved along the rotation axis 41 of the operation lever 40 by a predetermined distance, 31).

In this case, even if the driver operates excessively in the process of performing the tele-out and tele-operation, the telescoper 50 is brought into contact with one end portion and the other end portion of the guide slot 31, Can be prevented.

A preferred embodiment of the tilting and telescopic steering driving apparatus according to the present invention is characterized in that when the tilting and teletaking operation and the teleine operation are performed, the telescoper 50 interlocked with the operation lever 40 prevents the operation At the same time, after the tilting and teletaking and telenin operation is completed, it is possible to protect the driver by absorbing the shock absorbing energy in the event of a vehicle collision, that is, by generating a constant load line, And provides an advantage that can be secured.

A preferred embodiment of the tilting and telescopic steering driving apparatus according to the present invention has been described in detail with reference to the accompanying drawings. However, it should be understood that the embodiments of the present invention are not necessarily limited to the above-described preferred embodiments, and that various modifications and equivalents may be made by those skilled in the art something to do. Therefore, it is to be understood that the true scope of the present invention is defined by the appended claims.

10: sliding column housing 11: main bracket
12: Mounting block 13: Tilt bracket
14: opening slot 20: tilt means
21: Moving gear plate 22: Guide gear plate
30: Column housing 31: Guide slot
40: Operation lever 41:
50: telescoper 51: through hole
52: stepped portion 60: spring spring
70: guide block 80: clip ring
90: Inner tube

Claims (8)

A main housing fixed to the small section of the vehicle;
A sliding column housing disposed inside the main housing, the sliding column housing having a telescopic length and a telescopic length;
The sliding column housing is rotated around a rotation axis provided in a direction orthogonal to the longitudinal direction of the sliding column housing to switch to an unlocked state in which the teletext and telein operation are possible and a locked state in which the tele- ;
The sliding column housing is rotated by the telescopic and telescopic distance so that the telescopic and telescopic distances of the sliding column housing are limited when the operating lever is operated in the unlocked state, A telescoping member inserted into the slotted guide slot and rotated to be detached to the outside of the guide slot so as not to affect the sliding direction of the sliding column housing in the event of a collision accident of the vehicle when the operating lever is in the locked state, Lt; / RTI >
Wherein the telescoper is provided with a through hole through which the rotation axis of the operation lever passes,
Wherein the rotation shaft of the operating lever is provided with a spring spring whose one end is supported by the main housing and the other end is fixed to the telostopper so that the telescoper is elastically supported when the telostopper is rotated. The method according to claim 1,
The sliding column housing includes:
An inner tube installed in the main housing;
And a column housing that externals the inner tube,
Wherein the guide slot is slid in a longitudinal direction between the main housing and the inner tube. The method according to claim 1,
Wherein the rotary shaft and the through-hole have a polygonal cross section such that the telescopers are rotated in association with each other when the operation lever is operated. delete The method according to claim 1,
Wherein the rotation shaft of the operation lever
A first clip ring for preventing axial movement of the telescoper;
And a second clip ring is interposed to prevent axial movement of the spring spring. The method according to claim 1,
Wherein the main housing includes a guide block for guiding insertion and removal of the telostopper into and out of the guide slot when the operation lever is operated and a guide block for preventing generation of noise when the telostopper is inserted into the guide slot, And a telescopic steering drive. The method of claim 6,
The guide block includes:
And a " C " shape opening in the radial direction corresponding to the longitudinal direction of the guide slot on the rotation axis of the operation lever. The method of claim 6,
The guide block includes:
And a tilt and telescopic steering drive device made of a plastic material that absorbs impact with the telescopers.

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