KR101561954B1 - Structure for preventing play in steering column for vehicle - Google Patents

Structure for preventing play in steering column for vehicle Download PDF

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Publication number
KR101561954B1
KR101561954B1 KR1020140052404A KR20140052404A KR101561954B1 KR 101561954 B1 KR101561954 B1 KR 101561954B1 KR 1020140052404 A KR1020140052404 A KR 1020140052404A KR 20140052404 A KR20140052404 A KR 20140052404A KR 101561954 B1 KR101561954 B1 KR 101561954B1
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KR
South Korea
Prior art keywords
outer member
inner member
steering column
clearance
bushing tube
Prior art date
Application number
KR1020140052404A
Other languages
Korean (ko)
Inventor
박영석
정덕무
김영광
정해원
황진원
김현철
최민영
손호철
최윤철
정세훈
이인우
Original Assignee
한국델파이주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 한국델파이주식회사 filed Critical 한국델파이주식회사
Priority to KR1020140052404A priority Critical patent/KR101561954B1/en
Application granted granted Critical
Publication of KR101561954B1 publication Critical patent/KR101561954B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/184—Mechanisms for locking columns at selected positions

Abstract

The present invention provides a clearance preventing structure of a steering column for a vehicle. The clearance preventing structure can prevent a clearance between an inner member and a hollow type-outer member with a small amount of force through a bushing tube. The clearance preventing structure for a steering column including the hollow-type outer member and the inner member inserted into the outer member to move in an axial direction in order to perform a telescope function by selectively driving a tilt lever having a tilt bolt mounted thereon comprises: an outer member opening part; a clearance preventing cap; and a bushing member. The outer member opening part opens a part of the outer member. The clearance preventing cap is fixed to the tilt bolt, placed on the outer member opening part, and has a first thickness part and a second thickness part. The bushing tube is interposed between the outer member and the inner member and has a part folded by the clearance preventing cap. The bushing tube includes a cut part cut into both ends.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steering column for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a structure for preventing a clearance of a steering column for a vehicle.

Generally, the automobile has a steering column capable of adjusting the height of the steering wheel and the distance after the driver according to the driver's physical condition or driving posture.

Such a steering column for an automobile has a tilt function that allows the driver to adjust and adjust the steering wheel at a comfortable angle by operating a tilt lever at a predetermined angle, To extend or retract from the steering shaft to widen the driver's seat space.

The telescopic function of the vehicle as described above has an effect that the driver can accurately position the steering wheel at a position required by the driver in accordance with the body condition or the driving posture of the driver for more comfortable and safe driving.

Here, the automotive telescopic column includes a hollow outer member and an inner member inserted in the hollow outer member and movable in the axial direction.

The hollow outer member and the inner member of the telescopic column for an automobile are spaced apart due to the frequent implementation of the telescopic function. Therefore, in order to prevent such a clearance, a bushing tube is interposed between the hollow outer member and the inner member, a clearance prevention cam is mounted on a tilt bolt rotated together with the tilt lever, When the lever is rotated, the clearance prevention cam is rotated together to press the bushing tube to prevent the clearance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure for preventing clearance of a steering column for a vehicle that can prevent a clearance between an inner member and a hollow outer member through a bushing tube with a small force.

In order to achieve the above object, in order to perform the telescopic function by selectively driving the tilt lever equipped with the tilt bolt, the structure for preventing the clearance of the steering column of the vehicle according to the embodiment of the present invention includes a hollow outer member, An outer member opening portion for opening a portion of the outer member, wherein the outer member opening portion includes an inner member movably inserted in the axial direction; A restraining cam fixed to the tilt bolt and having first and second thickness portions placed in the outer member opening portion; And a bushing tube interposed between the outer member and the inner member, the bushing tube having a portion in contact with the clearance prevention cam, the bushing tube having an incision cut at both ends thereof.

The cutout may have a shape that is inclined with respect to the radial direction of the bushing tube.

And a lubricant groove for receiving lubricant may be formed on the surface of the clearance prevention cam.

The clearance prevention cam may be made of a steel material or may be coated with a steel material.

And a load supporting plate larger than the width of the clearance prevention cap may be further provided between the clearance prevention cam and the bushing tube.

The first portion of the inner member corresponding to the clearance prevention cam may have a depressed shape.

For example, the inner member may have a "D" shape whose cross section is an English alphabet, and a flat surface of the "D" shape may correspond to the first portion.

As another example, the upper and lower portions of the inner member may have a flattened shape, respectively, and the upper portion or the lower portion may correspond to the first portion.

As another example, the inner member may have a curved shape in which the upper and lower portions are recessed, respectively, and the upper portion or the lower portion may correspond to the first portion.

As another example, the upper and lower portions of the inner member may each have a shape curved in a free-form surface, and the upper portion or the lower portion may correspond to the first portion.

The portion of the bushing tube corresponding to the clearance prevention cam may have a relatively large thickness as compared with other portions.

A friction reduction groove or a friction reduction projection may be formed in a portion of the bushing tube corresponding to the clearance prevention cap.

As described above, the structure for preventing clearance of the steering column for a vehicle according to the embodiment of the present invention can have the following effects.

According to the embodiment of the present invention, since the hollow outer member opening portion, the anti-jamming cam, and the bushing tube are provided, and the incision portion is provided in the bushing tube, the rotation of the tilt lever of the small force facilitates the bushing tube through the incision portion And the clearance between the inner member and the outer member through the bushing tube can be prevented with a small force.

1 is a schematic view of a general steering column for a vehicle.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 to schematically show the structure for preventing the clearance of the steering column for a vehicle according to the first embodiment of the present invention.
3 is a cross-sectional view showing the operation state of the structure for preventing the clearance of the steering column for a vehicle shown in Fig.
Fig. 4 is a perspective exploded perspective view of the structure for preventing the clearance of the steering column for a vehicle shown in Fig. 2. Fig.
5 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a second embodiment of the present invention.
6 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a third embodiment of the present invention.
7 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a fourth embodiment of the present invention.
FIG. 8 is a cross-sectional view schematically illustrating a structure for preventing a clearance of a steering column for a vehicle according to a fifth embodiment of the present invention.
9 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a sixth embodiment of the present invention.
10 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a seventh embodiment of the present invention.
11 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to an eighth embodiment of the present invention.
12 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a ninth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 2 is a sectional view taken along the line II-II of FIG. 1 to schematically show the structure for preventing the clearance of the steering column for a vehicle according to the first embodiment of the present invention, FIG. 3 is a cross- And Fig. 4 is an exploded perspective view of the essential portion of the structure for preventing the clearance of the steering column for a vehicle shown in Fig. 2. Fig.

2 to 4, the structure for preventing the steering column C for a vehicle according to the first embodiment of the present invention includes a tilt lever 11 (hereinafter referred to as " tilt lever " a hollow outer member 110 and an inner member 110 inserted into the outer member 110 to move in the axial direction to perform a telescopic function by selectively driving the tilt lever, A play preventing cam 130, a bushing tube 140, and a bushing tube 140. The outer member opening portion 111, the play preventing cam 130, the bushing tube 140, ).

The outer member opening portion 111 is provided in a part of the hollow outer member 110 as shown in Figs. Particularly, as shown in FIGS. 2 and 3, the anti-air-play cam 130 is brought into direct contact with the bushing tube 140 through the outer member opening portion 111.

As shown in Figs. 2 to 4, the anti-jamming cam 130 is fixed to the tilt bolt 12, is placed in the outer member opening 111, and the first and second thickness portions 131, (132). For example, the thickness of the second thickness portion 132 is set to be larger than that of the first thickness portion 131, so that the first thickness portion 131 of the surge protection cam 130, as shown in FIG. 2, 3, when the tilt bolt 12 is rotated by the tilt lever 11, the anti-jamming cam 130 fixed to the tilt bolt 12 is rotated together with the tube 140, The bushing tube 140 is deformed by being pressed by the thick portion 132. Therefore, the clearance between the inner member 120 and the outer member 110 is woven through the deformation of the bushing tube 140.

The bushing tube 140 is interposed between the outer member 110 and the inner member 120, and a portion of the bushing tube 140 is in contact with the anti-jamming cam 130. 3, in a state where the bushing tube 140 is in contact with the first thickness portion 131 of the anti-jamming cam 130 as shown in Fig. 2, when the tilt bolt 12 is in contact with the tilt lever 130, The bushing tube 140 is pressed and deformed by the second thickness portion 132 while being rotated together with the clearance prevention cam 130 fixed to the tilt bolt 12. [

In particular, the bushing tube 140 has a cutout 141 in which a portion is cut at both ends. Accordingly, when the bushing tube 140 is pushed by the second thickness portion 132 of the surge protection cam 130, the both ends of the bushing tube 140 are overlapped with each other so that the deformation of the bushing tube 140 can be easily induced have. Ultimately the bushing tube 140 can be easily deformed through the cutout 141 by the rotation of the tilt lever 11 with a small force so that the inner member 120 and the outer member 120 110 can be prevented with a small force.

Further, the cutout 141 may have a shape that is inclined with respect to the radial direction of the bushing tube 140. [ Therefore, both the cut ends of the bushing tube 140 can be smoothly moved on the inclined surfaces of the inclined shape, and the bushing tube 140 can be deformed by the rotation of the tilt lever 11 with a smaller force .

The clearance prevention cam 130 may be made of steel or may be coated with a steel material to reinforce rigidity. Therefore, wear and deformation of the anti-shake cam 130 can be minimized in the operation relationship with the bushing tube 140. [ Of course, the bushing tube 140 may be made of a steel material or may be coated with a steel material to reinforce the bushing tube 140.

Although not shown, an elastic member such as a plate spring is further added to the anti-playout cam 130 so that the assembly tolerance of the anti-jamming cam 130 and the bushing tube 140, The force can be reduced.

Hereinafter, with reference to FIG. 5, a description will be given of a structure for preventing a clearance of a steering column for a vehicle according to a second embodiment of the present invention.

5 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a second embodiment of the present invention.

As shown in FIG. 5, the structure for preventing the vehicle steering column according to the second embodiment of the present invention is the same as that of the first embodiment of the present invention except for the clearance prevention cam 230, Description will be made mainly of the clearance prevention cam 230. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The clearance prevention cam 230 may be provided with a lubricant groove 232 for receiving a lubricant on its surface. Therefore, wear of the play preventing cam 230 can be minimized in the operation relationship with the bushing tube 140, and the play of the play preventing cam 230 can be made more smooth through the lubricant (for example, grease) .

Hereinafter, with reference to FIG. 6, a structure for preventing a clearance of a steering column for a vehicle according to a third embodiment of the present invention will be described.

6 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a third embodiment of the present invention.

6, the structure for preventing the steering column of the vehicle according to the third embodiment of the present invention is the same as that of the first embodiment of the present invention except that a load supporting plate 350 is added The load supporting plate 350 will be described below. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The load supporting plate 350 may be provided between the anti-jamming cam 130 and the bushing tube 140. In particular, the load support plate 350 can be designed to be larger than the width of the anti-jamming cam 130. Therefore, the bushing tube 140 is pressed through the load supporting plate 350 with an area larger than the area of the anti-play cam 130, so that the load distribution or the supporting force can be improved.

Hereinafter, with reference to FIG. 7, a description will be given of a structure for preventing clearance of a steering column for a vehicle according to a fourth embodiment of the present invention.

7 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a fourth embodiment of the present invention.

As shown in Fig. 7, the structure for preventing the vehicle steering column according to the fourth embodiment of the present invention is the same as that of the first embodiment of the present invention except for the shape of the inner member 420, The shape of the inner member 420 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The first portion 421 of the inner member 420, which corresponds to the clearance prevention cam 130, may have a depressed shape. In particular, the inner member 420 may have a "D" shape whose cross section is an English alphabet, and a flat surface of the "D" shape may correspond to the first portion 421. Accordingly, the deformation of the bushing tube 140 can be made larger by pushing the bushing tube 140 through the recessed first portion 421.

Hereinafter, with reference to FIG. 8, a structure for preventing a clearance of a steering column for a vehicle according to a fifth embodiment of the present invention will be described.

FIG. 8 is a cross-sectional view schematically illustrating a structure for preventing a clearance of a steering column for a vehicle according to a fifth embodiment of the present invention.

8, the structure for preventing clearance of the steering column for a vehicle according to the fifth embodiment of the present invention is the same as that of the first embodiment of the present invention except for the shape of the inner member 520, The shape of the inner member 520 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The first portion 521 of the inner member 520, which corresponds to the clearance prevention cam 130, may have a depressed shape. In particular, the upper and lower portions of the inner member 520 may have a flattened shape, respectively, and the upper portion or the lower portion may correspond to the first portion 521. Accordingly, the bushing tube 140 can be pressed more and more through the recessed first portion 521, so that the deformation can be made larger.

Hereinafter, with reference to FIG. 9, a structure for preventing the steering column of a vehicle according to the sixth embodiment of the present invention will be described.

9 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a sixth embodiment of the present invention.

9, the structure for preventing clearance of the steering column for a vehicle according to the sixth embodiment of the present invention is the same as that of the first embodiment of the present invention except for the shape of the bushing tube 640, The shape of the bushing tube 640 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The portion 641 of the bushing tube 640 corresponding to the surge protection cam 130 may have a relatively large thickness as compared with other portions. Therefore, the rigidity and the bending force of the bushing tube 640 can be increased through the large thickness portion 642.

As another example, although not shown, a portion of the bushing tube 640 corresponding to the anti-jamming cam 130 may be made of a rigid material such as steel instead of increasing its thickness.

10 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a seventh embodiment of the present invention.

10 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a seventh embodiment of the present invention.

As shown in FIG. 10, the structure for preventing the vehicle steering column according to the seventh embodiment of the present invention is the same as that of the first embodiment of the present invention except for the shape of the bushing tube 740, The shape of the bushing tube 740 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

A friction reducing groove 742 (or a friction reducing projection) may be formed at a portion of the bushing tube 740 corresponding to the anti-jamming cam 130. Therefore, the abrasion of the frictional surface through the frictional reducing groove 742 minimizes the abrasion with the anti-jamming cam 130, and the anti-jamming cam 130 can be smoothly operated.

Hereinafter, with reference to FIG. 11, a description will be given of a structure for preventing a clearance of a steering column for a vehicle according to an eighth embodiment of the present invention.

11 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to an eighth embodiment of the present invention.

11, the structure for preventing the vehicle steering column according to the eighth embodiment of the present invention is the same as that of the first embodiment of the present invention except for the shape of the inner member 820, The shape of the inner member 820 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The first portion 821 corresponding to the anti-jamming cam 130 of the inner member 820 may have a depressed shape. Particularly, the inner member 820 has a curved shape in which the upper and lower portions thereof are recessed, respectively, and the upper portion or the lower portion may correspond to the first portion 821. Accordingly, the deformation of the bushing tube 140 can be made larger by pushing the bushing tube 140 through the recessed first portion 821.

Hereinafter, with reference to FIG. 12, a structure for preventing the steering column of a vehicle according to the ninth embodiment of the present invention will be described.

12 is a cross-sectional view schematically showing a structure for preventing a clearance of a steering column for a vehicle according to a ninth embodiment of the present invention.

As shown in FIG. 12, the structure for preventing the vehicle steering column according to the ninth embodiment of the present invention is the same as the first embodiment of the present invention except for the shape of the inner member 920, The shape of the inner member 920 will be described. The same constituent elements as those of the first embodiment of the present invention are denoted by the same reference numerals.

The first portion 921 corresponding to the anti-jamming cam 130 of the inner member 920 may have a depressed shape. In particular, the upper and lower portions of the inner member 920 may have a shape curved in a free-form surface, respectively, and the upper portion or the lower portion may correspond to the first portion 921. Accordingly, the deformation of the bushing tube 140 can be made larger by pushing the bushing tube 140 through the depressed first portion 921.

As described above, the structure for preventing clearance of the steering column for a vehicle according to the embodiments of the present invention can have the following effects.

According to the embodiments of the present invention, the bushing tubes 140, 640, and 740 (including the hollow outer member opening portion 111, the anti-playout cams 130 and 230 and the bushing tubes 140, 640 and 740) The bushing tubes 140, 640 and 740 can be easily moved through the cutout portions 141, 641 and 741 by the rotation of the tilt lever 11 with a small force 420, 520, 820, 920 through the bushing tubes 140, 640, 740 and the outer member 110 can be prevented with a small force.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

C: steering column 11: tilt lever
12: Tilt bolt 110: Hollow outer member
111: outer member opening portion 120, 420, 520, 820, 920: inner member
130, 230: anti-leaking cam 140, 640, 740: bushing tube
141, 641, 741: incision part 232: lubrication groove
421, 521: first portion 742: friction reducing groove

Claims (12)

delete delete delete delete A vehicle steering column comprising a hollow outer member and an inner member inserted in the outer member and movable in the axial direction to perform a telescopic function by selectively driving the tilt lever equipped with the tilt bolt, With a preventive structure,
An outer member opening portion that opens a portion of the outer member;
A restraining cam fixed to the tilt bolt and having first and second thickness portions placed in the outer member opening portion; And
And a bushing tube interposed between the outer member and the inner member, the bushing tube having a portion in contact with the clearance prevention cam,
The bushing tube
A part of which has an incision cut at both ends,
And a load supporting plate larger than the width of the clearance prevention cap is further provided between the clearance prevention cam and the bushing tube
Structural structure for steering column of vehicle. A vehicle steering column comprising a hollow outer member and an inner member inserted in the outer member and movable in the axial direction to perform a telescopic function by selectively driving the tilt lever equipped with the tilt bolt, With a preventive structure,
An outer member opening portion that opens a portion of the outer member;
A restraining cam fixed to the tilt bolt and having first and second thickness portions placed in the outer member opening portion; And
And a bushing tube interposed between the outer member and the inner member, the bushing tube having a portion in contact with the clearance prevention cam,
The bushing tube
A part of which has an incision cut at both ends,
Wherein the first portion of the inner member corresponding to the clearance prevention cam has a recessed shape
Structural structure for steering column of vehicle. The method of claim 6,
Wherein the inner member has a "D" shape whose cross section is an English alphabet, and a flat surface of the "D" shape corresponds to the first portion. The method of claim 6,
Wherein the inner member has a shape in which an upper portion and a lower portion of the inner member are pressed flat, and the upper portion or the lower portion corresponds to the first portion. delete delete The method of claim 6,
Wherein the inner member has a curved shape in which an upper portion and a lower portion thereof are recessed, and the upper portion or the lower portion corresponds to the first portion. The method of claim 6,
Wherein the inner member has a shape in which an upper portion and a lower portion thereof are respectively pressed by a free-form surface, and the upper portion or the lower portion corresponds to the first portion.
KR1020140052404A 2014-04-30 2014-04-30 Structure for preventing play in steering column for vehicle KR101561954B1 (en)

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KR1020140052404A KR101561954B1 (en) 2014-04-30 2014-04-30 Structure for preventing play in steering column for vehicle

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013103602A (en) * 2011-11-14 2013-05-30 Jtekt Corp Steering device
JP2013216218A (en) * 2012-04-10 2013-10-24 Jtekt Corp Steering device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013103602A (en) * 2011-11-14 2013-05-30 Jtekt Corp Steering device
JP2013216218A (en) * 2012-04-10 2013-10-24 Jtekt Corp Steering device

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