KR100852486B1 - Steering device for vehicle having simultaneous tilting and telescopic movements - Google Patents

Abstract

The present invention relates to a steering drive device for simultaneously implementing tilt and telescopic, comprising: a main housing fixed to a predetermined portion of a vehicle, a sliding column housing that can be transferred in a longitudinal direction with respect to the main housing, and an end portion of the sliding column housing. A tilting and telescopic steering drive comprising a tilting means hinged to pivot the housings via a hinge axis, and telescopic means for extending and contracting the sliding column housing from the main housing. A binding ring member is provided between both the tilt bracket and the sliding column housing so that the operation is restrained, and the opposite tension force is applied to the inner wall surfaces of both sides of the tilt bracket to bring the sliding column housing and the main housing into tight and tight contact. so The configuration allows for safer and more secure tilt and restraint of telescopic operation.

Description

Tilt and telescopic steering drive {Steering device for vehicle having simultaneous tilting and telescopic movements}

1 is a perspective view showing a schematic configuration of a tilt and telescopic steering drive apparatus according to the present invention,

Figure 2 is a side structural view showing a side structure of the steering column of Figure 1,

3 is a bottom structural view showing the steering column of FIG.

4 is a perspective view of the steering column of FIG. 1 viewed from the opposite direction as in FIG. 1;

5 is a side structural view showing a side structure of the steering column of FIG. 4;

6 is a cross-sectional structural view taken along the line A-A of FIG. 5, and

FIG. 7 is an exploded perspective view illustrating in detail an exploded main part of the steering column of FIG. 4;

<Description of Signs of Major Parts of Drawings>

  10 ... main housing 10a, 10b ... first and second slit grooves

  12 ... support bracket 20 ... sliding column housing

  30 ... tilt means 31 ... tilt brackets

  33 .. Support nut 35 ... Cam mechanism

  40 ... telescopic means 11 ... mechanics

  50 ... binding ring member 51 ... weight loss

  S1, S2 ... steering shaft

The present invention relates to a tilt and telescopic steering drive for a vehicle that enables the simultaneous implementation of the tilt and telescopic functions to fit the driver's physique or driver posture in the vehicle.

In general, the tilt and telescopic steering device is a kind of a variable steering wheel, and the tilt function is a function of varying the steering wheel angle to fit the driver's physique and the driver's posture, and the telescopic function is a double direction of the steering shaft. This function allows you to stretch the length by sliding it. Although the tilt and telescopic functions have been driven separately by a tilt operation and a telescopic operation in a conventional operation method, there is a cumbersome operation and try to replace them with an integrated driving method. However, when implemented in one piece, the overall structure is very complicated. Due to such a complicated structure, an error occurred in design.

Furthermore, in the related art, an operating lever for adjusting tilt and telescopic operation is configured to be capable of pivoting up and down in front of the driver's seat so that the tilt and telescopic operation can be performed. As the driver is more likely to be injured on the control lever, there is an urgent need for a solution that is designed to make the locking and operation of the tilt and telescopic more robust even if the rotation angle of the control lever is set as small as possible.

The present invention has been made in view of the above drawbacks, and by simplifying the overall structure, by allowing the driver to perform the dual tilt and the telescopic restraint through the manpower of the operating bolt connected to the operating lever, the operating angle of the operating lever It is an object of the present invention to provide a tilt and telescopic steering drive that can firmly perform the tilt and the telescopic restraint even when performing the rotational operation.

In order to achieve the above object, the tilt and telescopic steering drive device according to the present invention, the main housing 10 is fixed to a predetermined portion of the vehicle, and the sliding column housing which can be transported in the longitudinal direction with respect to the main housing 10 20, a tilt means 30 hinged to pivot the housings 10 and 20 via a hinge shaft H1 at an end of the sliding column housing 20, and the sliding column housing 20. In the tilt and telescopic steering drive having a telescopic means 40 for extending and contracting from the main housing 10,

The tilt means 30 and the telescopic means 40 are integrally formed,

The tilt means 30,

A plurality of parallel arrayed tilt brackets 31 having one end protruding from the lower portion of the main housing 10 and the center of which is cut out in the vertical direction, and a tilt bolt inserted through the plurality of tilt brackets 31. T1) and a support mechanism 33 fastened to one side of the tilt bolt T1 to be rotatably supported with a cam mechanism 35 for tightening the tilt bracket 31 inward. It is made by including the operating lever 36,

The telescopic means (40) is the sliding column housing (20) by a tilt bolt (T1) generates a set opposing tension force in accordance with the operation of the cam mechanism 35 is tightened in conjunction with the rotation of the operating lever (36) By setting a tensile force in the direction to tension the inner wall of the, the main housing 10 and the sliding column housing 20 at the same time to constrain the inside with the tilt bracket 31, the interior of the sliding column housing 20 When the binding ring member 50 connected to and the opposing tensile force applied to the binding ring member 50 are released by the reverse rotation of the operating lever 36, the tilt bolt T1 can be guided and moved. It is characterized in that it comprises a long hole portion 11 formed in the longitudinal direction of the main housing 10 in both ends of the main housing 10 through the long.

Hereinafter, the tilt and telescopic steering column according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a schematic configuration of a tilt and telescopic steering drive apparatus according to the present invention, Figure 2 is a side structural view showing a side structure of the steering column of Figure 1, Figure 3 is a downward direction of the steering column of Figure 1 Figure 4 is a bottom structural view as viewed from the upper oblique direction, Figure 4 is a perspective view showing the steering column of Figure 1 from the opposite direction as in Figure 1, Figure 5 is a side view showing the side structure of the steering column of Figure 4 FIG. 6 is a cross-sectional structural view taken along line AA of FIG. 5, and FIG. 7 is an exploded perspective view illustrating in detail the main parts of the steering column of FIG. 4.

As illustrated in the drawings, the tilt and telescopic steering column of the present invention rotates the sliding column housing 20, which is tightened and restrained on the inner side of the tilt bracket 31, by a predetermined angle about the first pivoting axis H1. And tilt means 30 for performing the restraint operation and the release operation of the restraint. At this time, the tilt bracket 31 is provided with a first steering shaft S1 connected to a steering wheel (not shown), and the second housing shaft S2 connected to a steering shaft (not shown) in the main housing 10. The first and second steering shafts S1 and S2 are connected to each other by pin sliding insertion by a long hole or by spline coupling by serrations S1 and S2a as is known.

In addition, the main housing 10 is fixedly coupled to the support bracket 12 fixed to the vehicle body predetermined portion at a predetermined interval via the tilt bracket 31.

In addition, the main housing 10 fixed to a predetermined portion of the vehicle is connected to the telescopic means 40 for extending and contracting the sliding column housing 20 configured to be transportable in the longitudinal direction thereof from the main housing 10. have.

In addition, the tilt means 30, a plurality of parallel arrangement type tilt bracket 31, one end of which is formed in the lower portion of the main housing 10 and the center is cut out in the vertical direction, and the plurality of tilt brackets Cam mechanism for tightening the tilt bracket 31 inwardly facing the tilt bolt T1 inserted through the 31 and the support nut 33 fastened to one side of the tilt bolt T1. It consists of an operating lever 36 rotatably supported with 35 in between.

In addition, the telescopic means 40 is the sliding column housing 20 by the tilt bolt (T1) generates a set tension force in accordance with the operation of the cam mechanism 35 is tightened in conjunction with the rotation of the operation lever (36). By applying a predetermined tensile force in the direction to tension the inner wall of the), to simultaneously constrain the main housing 10 and the sliding column housing 20 together with the tilt bracket 31, of the sliding column housing 20 When the binding ring member 50 connected therein and the tensile force applied to the binding ring member 50 are released by the reverse rotation of the operating lever 36, the tilt bolt T1 can be guided and moved. In addition, the main housing 10 is configured to include a long hole 11 formed to penetrate long along the longitudinal direction of the main housing 10 at both ends of the main housing 10.

In addition, the tilt means 30 further includes a second tilt bolt T2 having a T-shaped cross section arranged to face each other on the opposite side of the tilt bolt T1.

In addition, the binding ring member 50 is formed with fastening holes (F1, F2) to which one end of the tilt bolt (T1, T2) is fixed, the binding ring member, of the two fastening holes of the binding ring member The fastening part 51 of the shape which cut | disconnected flatly so that the thickness of the outer peripheral surface which adjoins this fastening hole F1 and the two outer peripheral surfaces adjacent to this fastening hole F1 between them is provided, for example.

In addition, the end side surface of the main housing 10, the longitudinal direction of the main housing 10, to assist the flexible bending operation of the sliding column housing 20 relative to the main housing 10 during the vehicle crash. The first slit 10a is formed to penetrate long along the end, and the end is opened so that the first slit 10a is continuous in both directions of the end of the first slit 10a from the end of the first slit 10a. The second slit 10b is formed to be long and orthogonal to the slit 10a.

According to this configuration, when performing the telescopic operation of the steering wheel, by turning the operating lever 36 in the arrow A direction (see Figs. 2 and 4) to make the support nut 33 in a relaxed state, the The sliding column housing 20 restrained by the tilt bracket 31 of the main housing 10 is in a movable state.

At this time, when the driver grabs the steering wheel and applies the retraction movement force, the movement of the sliding column housing 20 with respect to the main housing 10 is performed in the direction of applying the force.

Furthermore, the present invention rotates the operating lever 36 to start the telescopic operation, and as a result, the transmission medium for releasing and operating the tilting force of the binding ring member 50 so that the tilting operation can be performed together. By using it, the binding ring member 50 is tensioned on both sides, thereby restraining the tilt and telescopic operation of the sliding column housing 20 from starting.

At this time, the tilt bolts (T1, T2) are applied to the tilting bolts (T1, T2) individually at the same time by the weight portion 51 formed on one side of the outer circumferential surface of the binding ring member 50 and the steering column housing 20 and The main housing 10 is in pressure contact with the inner wall surfaces of the tilt brackets 31 and 31 more strongly, so that the restraint coupling is assisted.

Next, when the driver rotates the operation lever 36 in the direction of arrow B shown in Figs. 3 and 4 to release the restraining operation of the tilt and the telescopic, the tilt bolts T1 and T2 are exerted. As the cam mechanism 35 is operated to release the tension force, the tilt and telescopic restraints are released. When the driver bends the steering wheel, the tilt bolt is connected to the steering shaft S1 of the steering wheel. As the T1 and T2 guide guide rotation (movement) through the notch grooves 31a and 31a of the tilt bracket 31, a refractive angle of a predetermined angle is performed, thereby enabling a tilting operation.

Of course, when the telescopic and tilting operation reaches the set value, the driver turns the operation lever 36 again in the direction of arrow A to restrain the tilting operation by returning the operation lever 36 to the original position, and at the same time, the operation lever 36 The tilt bracket 31 is tightly tightened while the clamping movement force of the cam mechanism 35 with respect to the tilt bracket 31 is generated according to the restoration rotation of the tilt bracket 31, thereby restraining the sliding column housing 20 strongly. By doing so, the telescopic and tilting operation may be completed.

In addition, the main housing 10 is provided with the first and second slit grooves 10a and 10b so that the sliding column housing 20 can be refracted at an arbitrary angle when the vehicle collides, and thus the arbitrary refractive index during the collision. Of course, the function can be more effectively attenuated the impact force on the driver.

This combination eliminates the need for separate configurations for telescopic and tilting. At this time, when the driver wants to change the longitudinal position of the steering wheel according to his or her body shape, driving posture or other causes, the constraint force on the telescopic and tilting operation is increased only by the operation at the smaller rotation angle of the control lever. Will be able to collect.

Thus, according to the tilt and telescopic steering column of the present application, the driver can tilt and telescopic the steering wheel with less rotational movement of the control lever, and through the configuration as described above for a separate telescopic or tilting operation configuration There is a very good effect, such as to simplify the overall structure by excluding.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Claims (4)

A main housing 10 fixed to a predetermined portion of the vehicle, a sliding column housing 20 which can be transferred in a longitudinal direction with respect to the main housing 10, and a hinge shaft H1 at an end of the sliding column housing 20. Tilt with tilting means 30 hinged to pivot the housings 10 and 20 and telescopic means 40 for extending and contracting the sliding column housing 20 from the main housing 10. And a telescopic steering drive, The tilt means 30 and the telescopic means 40 are integrally formed, The tilt means 30, A plurality of parallel arrayed tilt brackets 31 having one end protruding from the lower portion of the main housing 10 and the center of which is cut out in the vertical direction, and a tilt bolt inserted through the plurality of tilt brackets 31. T1) and a support mechanism 33 fastened to one side of the tilt bolt T1 to be rotatably supported with a cam mechanism 35 for tightening the tilt bracket 31 inward. It is made by including the operating lever 36, The telescopic means 40 of the sliding column housing 20 by the tilt bolt (T1) generates a set tension force in accordance with the operation of the cam mechanism 35 is tightened in conjunction with the rotation of the operating lever (36). By applying a set tension force in the direction of tensioning the inner wall, so as to constrain the main housing 10 and the sliding column housing 20 together with the tilt bracket 31 at the same time, the inside of the sliding column housing 20 When the binding ring member 50 and the tension force applied to the binding ring member 50 are released by the reverse rotation of the operating lever 36, the tilt bolt T1 is capable of guiding movement. Tilt and telescopic steering column, characterized in that it comprises a long hole (11) formed long through the longitudinal direction of the main housing (10) on both ends of the main housing (10). The method of claim 1, The tilt means (30) is a tilt and telescopic steering column, characterized in that it further comprises a second tilt bolt (T2) of the T-shaped cross section arranged to face each other on the opposite side of the tilt bolt (T1). The method according to claim 1 or 2, The binding ring member 50 is formed with a plurality of fastening holes (F1, F2) is fixed to one end of the tilt bolt (T1, T2), The binding ring member 50 has a thickness between two outer peripheral surfaces adjacent to the fastening hole F1 with the fastening hole F1 at an upper side among the fastening holes F1 and F2 of the binding ring member 50 interposed therebetween. Tilt and telescopic steering column characterized in that it has a fattening portion 51 of the shape cut flat to be thin. The method of claim 3, wherein On the lower end surface of the main housing 10, In order to assist the flexible bending bending operation of the sliding column housing 20 with respect to the main housing 10 in the event of a vehicle collision, the penetrating long formed along the longitudinal direction of the main housing 10, the end is formed through 1 slit 10a, From the end of the first slit (10a) starting from the end of the first slit (10a) in both directions continuous with the first slit (10a) is provided with a second slit (10b) formed long through Tilt and telescopic steering column.

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