KR100559912B1 - One lever type manual tilt and telescopic steering apparatus in vehicle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single operation type tilt / telescopic steering apparatus for a vehicle, and has an object of preventing interference of the operation state between the telescopic and the tilt by independent actions while still performing a telescopic and tilting operation in one operation.

The present invention for achieving the above object, the operating lever (1) provided in the steering column (6) surrounding the steering shaft (S) for transmitting the operating force of the steering wheel to the link mechanism,

When adjusting the length of the steering column (6) through the operating lever (1), the outer housing (So) that accommodates the inner housing (Si) surrounding the steering shaft (S) is slidingly moved to apply a pressing force to the inner housing (Si). Telescopic operating means (2) and

Release or maintain the coupling of the steering column 6 via the control cable 7 connected to the control lever 1 so that the steering wheel can be bent when adjusting the tilting (tilting) of the steering wheel through the control lever 1. It is characterized by consisting of a tilt operating means (8).

Description

Tilt telescopic steering device for vehicle {One lever type manual tilt and telescopic steering apparatus in vehicle}

1 is a configuration diagram of a single operation type tilt telescopic steering apparatus for a vehicle according to the present invention

2 is a block diagram of a telescopic operating means operated by a one lever operating lever according to the present invention;

Figure 3 (a), (b) is a telescopic operating state diagram according to the present invention

4 is a partial configuration diagram of a tilt device according to the present invention

5 (a), (b) is an operating state of the tilt device according to the present invention

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

1: operation lever 2: telescopic operation means

3: fastening shaft 4: cam

4a, 5a: projecting surface 4b, 5b: recessed surface

5: spacer 6: steering column housing

6 ': mobile operation unit 6a, 6b: first and second action boss

7: control cable 8: tilt operating means

9: tilt lever 10: moving gear member

10a, 11a: gear is 11: fixed gear member

12: adjuster

S: Steering shaft

Si: Inner housing So: Outer housing

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt and telescopic steering apparatus for a vehicle, and more particularly to a tilt and telescopic steering apparatus for a vehicle in which the tilt and telescopic operation can be performed independently at the same time with a single lever operation.

In general, the steering device of a vehicle can adjust the driving direction of the vehicle by adjusting the front wheels or the four wheels of the vehicle at an appropriate angle in order to change the alignment state of the front wheel, which is the steering wheel, to arbitrarily change the traveling direction of the driving vehicle. Normally, steering operation force by the driver is transmitted to the steering gear and the link and the like so that the knuckle arm of the wheel rotates, thereby changing the direction of travel of the vehicle.

The steering shaft of such steering device is combined with the hub located at the center of the steering wheel, and its length is fixed so that it can not be arbitrarily adjusted according to the physical condition of the driver. Tilt and telescopic devices with adjustable length and angle are widely used.

However, when the tilting method mounted on the telescopic steering device is manual, the tilting lever protruding from the side of the steering column is operated and the locking force of the tilting device is adjusted according to the mechanical geometry. The cam type cam converting method is generally used. The cam type tilting device is a cam type tilting device that transmits the operating force of the tilt lever during the tilting operation, according to the kinematic geometry of the cam. It acts as a locking force through the component force has a disadvantage of being structurally complex due to the operation force transmission path while the efficiency of transmission of the operation force is low.

In addition, the telescopic and tilting device mounted on the steering device is related to the operation of some components according to the compact configuration, that is, the tension force is always applied to the cable that transmits the operating force of the tilting device when the telescopic device is fixed. After the tilt operation, even if a small external force is generated, the play may occur at the tilt fixed portion or the fixing force may be weakened.

Accordingly, the present invention has been made in view of the above-described point, and has an object of preventing interference of the working state between the telescopic and the tilt by the independent actions while the telescopic and the tilting action are performed in one operation.

The present invention for achieving the above object, and the operating lever provided in the steering column surrounding the steering shaft for transmitting the operating force of the steering wheel to the link mechanism;

A movable operation stage comprising a pair of first and second action bosses protruding from each other so as to increase or decrease the diameter of the outer housing accommodating the inner housing of the steering column so as to change the pressure state to the inner housing; A fastening shaft fastened through a moving control end, a cam fixed to a fastening shaft lifted or lowered while being fixed to a fastening shaft at one side of the mobile operating end, and a cam fixed to the operating lever coupled to the cam and rotated when the operating lever is operated. Telescopic operation means composed of a spacer for changing the pressurization state with respect to the first and second action bosses of said moving operation stage by axially moving by;

An operation cable having one end coupled to an end portion of the cam so as to be pulled in accordance with an operation of the operation lever, and a tilt lever which is coupled to the operation cable and hinged to a steering column portion so that the middle portion is coupled to the operation cable by the cable. A gear member whose one end is lifted up to incline the steering wheel during the seesaw movement of the tilt lever and the fixing spring is released from each other, and an elastic spring that moves the tilt lever to the initial position to fix the gear member when the operation cable is released. A tilt operating means made of an adjuster;

Characterized in that consisting of.

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

Figure 1 shows a single operation type tilt telescopic steering apparatus for a vehicle according to the present invention, the present invention is provided in the steering column (6) surrounding the steering shaft (S) for transmitting the operating force of the steering wheel to the link mechanism Operation lever (1),

When adjusting the length of the steering column (6) through the operating lever (1), the outer housing (So) that accommodates the inner housing (Si) surrounding the steering shaft (S) is slidingly moved to apply a pressing force to the inner housing (Si). Telescopic operating means (2) and

Release or maintain the coupling of the steering column 6 via the control cable 7 connected to the control lever 1 so that the steering wheel can be bent when adjusting the tilting (tilting) of the steering wheel through the control lever 1. It consists of a tilt operating means (8).

Here, as shown in FIG. 2, the telescopic operating means 2 increases or decreases the diameter of the outer housing So that accommodates the inner housing Si of the steering column 6 during the telescopic operation. The moving operation stage 6 'and the moving operation stage 6' made up of a pair of first and second action bosses 6a and 6b protruding from each other to change the pressurized state against Si), The cam (4) fixed to the operating lever (1) hinged to be lifted or lowered while being fixed to the fastening shaft (3) at one side of the fastening shaft (3) and the movable operation stage (6 ') to be fastened through. Axially moved by the cam 4 rotated during operation of the control lever 1, and the pressurized state of the movable operation step 6 'to the first and second action bosses 6a and 6b is changed. The main body is composed of a spacer 5.

At this time, the cam (4) and the spacer (5) is formed in the surface corresponding to each other unevenness corresponding to each other or accommodated in accordance with the operation direction of the operating lever (1) is moved in the axial direction for the movement operation end (6 ') The pressing force is added or released, as shown in FIG. 2, by forming protrusions 4a and 5a and recessed surfaces 4b and 5b having the same shape on the cam 4 and the spacer 5, respectively. When the cam 4 is rotated when the operation lever 1 is operated, the protruding surface 4a and the recessed surface 4b of the cam are positioned with each other between the recessed surface 5b and the protruding surface 5a of the spacer 5. Or vice versa.

In addition, the inner housing (Si) and the outer housing (So) constituting the steering column (6) are made of different materials, that is, the inner housing (Si) is made of steel, while the outer housing (So) Is made of magnesium.

Meanwhile, as shown in FIG. 5, the tilt operating means 8 has an operation cable having one end coupled to an end portion of the cam 4 so as to be pulled according to the operation of the operation lever 1 during a tilting operation ( 7), the tilt lever 9, which is coupled to the operation cable 7 and hinged to the steering column 6, the middle part to be sea saw movement by the cable (7), the tilt lever The gear member whose one end is lifted up to incline the steering wheel during the seesaw movement of (9) and the fixed state is released, and the tilt member 9 is moved to the initial position when the operation cable 7 is released. It consists of an adjuster 12 which is an elastic spring to fix the.

At this time, the gear member is located in the lower portion of the tilt lever (9), as shown in Figure 4, the moving gear member is lifted while the end is pressed by the tilt lever (9) when pulling the operation cable (7) (10) and the fixed gear member formed on the steering column (6) to maintain or release the fixing force by being engaged or separated from each other while forming a gear (11a) to be engaged with the gear (10a) formed in the movable gear member 10 It consists of (11).

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

When performing the telescopic and tilt operation mounted on the steering column 6 of the present invention, only the operation of the operating lever 1 is switched to a state in which the telescopic and tilt are independently performed, that is, the operating lever 1 is locked. When operating to the release position in the telescopic operation means (2) is switched to the release state, and the operation cable (7) pulled in accordance with the operation of the operation lever (1) switches the tilt operation means (8) to the release state Given.

At this time, the switching to the release state of the telescopic operation means 2 is due to the position change between the cam 4 and the spacer 5 directly as the operation lever 1 moves from the locked position to the release position. On the other hand, the switching to the release state of the tilt operating means 8 is caused by the movement of the operation cable 7 pulled by the operation lever 1, and accordingly, the operation state by the operation lever 1 can be simultaneously operated. While switching, they are independent of each other, that is, do not affect each other in the operation process.

Referring to the telescopic operation of the present invention in detail as shown in Figure 2, when operating the telescopic operation means 2 by raising the operation lever 1 from the locked position to the release position, the operation lever (1) The cam 4 at the position where the protruding surface 4a and the recessed surface 4b of the cam 4 arranged at the end of each other) face each other with the protruding surface 5a and the recessed surface 5b of the spacer 5. ), The projection surface 4a and the depression surface 4b of the cam 4 are changed to the position where the depression surface 5b and the projection surface 5a of the spacer 5 are mutually received.

Subsequently, when the spacer 5 is moved toward the cam 4, it acts as a force for moving the spacer 5 by the height of the protrusions 4a and 5a of the cam 4 and the spacer 5. This changes the pressurization state of the first and second action bosses 6a and 6b of the movable operation stage 6 'formed in the steering column 6, as shown in FIG. 3 (b). As the diameter of the outer housing So of the steering column 6 increases, the pressing force of the outer housing So that presses the inner housing Si surrounding the steering shaft S is released.

In such a state, when the steering column 6 is pulled or pushed to move the outer housing So from the inner housing Si, the length of the steering column 6 is adjusted to the driver's body. do.

Subsequently, when adjustment of the steering column 6 is completed, when the cam 4 is rotated together with the operation lever 1 by lowering the operation lever 1 to the locked position, the protruding surface 4a of the cam 4 is rotated. ) And the recessed surface 4b are changed to positions where the recessed surface 5b and the protruding surface 5a of the spacer 5 face each other, which is the protruding surface 4a, of the cam 4 and the spacer 5. It acts as a force for moving the spacer 5 by the height of 5a).

That is, as shown in FIGS. 2 and 3 (a), the steering column 6 is moved in the axial direction along the fastening shaft 3 as the spacer 5 is changed in accordance with the engagement state between the cam 4 and the spacer 5. Pressurizes the first and second action bosses 6a and 6b of the moving operation stage 6 ', which reduces the diameter of the outer housing So of the steering column 6 to adjust the steering shaft S. The inner inner housing (Si) is wrapped to act as a force to press the outer housing (So) to maintain the state of the telescopic adjusted steering column (6).

In addition, the tilting operation of the present invention will be described in detail as shown in Figure 5 (a), the cam (4) is changed so that the telescopic operation is made as the lift from the locking position of the operation lever 1 toward the release position When the operation cable 7 is pulled while rotating, the operation cable 7 pulls the tilt lever 9 constituting the tilt operating means 8 in the same direction.

Subsequently, when the tilt lever 9 is pulled by the operation cable 7, as shown in FIG. 5 (b), the operation cable 7 according to the structure of the intermediate part hinged to the steering column 6 part. The portion that is not pulled by the sea saw is moved in the opposite direction (Sea saw) movement, thereby pressing the end of the moving gear member 10 of the gear member in which the tilt lever 9 is kept fixed to each other Lifted up.

Then, when the movable gear member 10 of the gear member is lifted up, the gear teeth 11a of the fixed gear member 11 formed on the steering column 6 are formed in the gear column 10a of the movable gear member 10. And then tilt the steering wheel.

Subsequently, when the tilting operation of the steering wheel is completed and the operation lever 1 is returned from the release position to the locked position, the adjuster 7 which is compressed when the tilt lever 9 is moved while the operation cable 7 is released is released. 12) lottery by the elastic restoring force to push the tilt lever (9) to the initial position, accordingly, the pressing force of the movable gear member 10 by the tilt lever 9 is also released to the movable gear member 10 and the fixed gear The members 11 are engaged with each other to maintain a fixed state.

As described above, according to the present invention, the telescopic action and the tilting action of the steering column are simultaneously performed according to the operation of the operating lever, and independent operation is achieved without interference between the respective telescopic and tilting actions. There is a more certain effect.

In addition, the present invention achieves a telescopic tilting action with a single operation, so that the force transmission without interference between each other is achieved, as well as increase the efficiency of the locking force (locking) between each other, as well as load transmission for locking and unlocking (unlocking) There is an effect that can simplify the structure.

Claims (3)

An operating lever (1) provided in a steering column (6) surrounding a steering shaft (S) for transmitting an operating force of a steering wheel to a link mechanism; A pair of protruding protrusions spaced apart from each other to increase or decrease the diameter of the outer housing (So) accommodating the inner housing (Si) of the steering column (6) to change the pressurized state to the inner housing (Si). One of the moving operation stage 6 'consisting of the 1/2 action bosses 6a and 6b, the fastening shaft 3 which is fastened through the moving operation stage 6', and the moving operation stage 6 '. The shaft is fixed by the cam 4 fixed to the fastening shaft 3 at the side portion and fixed to the operating lever 1 hinged to be lifted or lowered, and the cam 4 rotated when the operating lever 1 is operated. A telescopic operating means (2) consisting of a spacer (5) for changing the pressurization state with respect to the first and second action bosses (6a, 6b) of said moving operation stage (6 ') while being moved in a direction; An operation cable 7 having one end coupled to an end portion of the cam 4 so as to be pulled according to the operation of the operation lever 1, and a seesaw movement coupled to the operation cable 7 by the cable 7. Tilt lever 9 hinged to the middle of the steering column 6, the gear member is lifted to one end to incline the steering wheel during the seesaw movement of the tilt lever 9, the fixed state is released from each other And tilt operating means (8) comprising an adjuster (12), which is an elastic spring that moves the tilt lever (9) to an initial position and fixes the gear member when the operation cable (7) is released. Tilt-telescopic steering system for vehicles consisting of a single operation. The cam 4 and the spacer 5 are provided with projecting surfaces 4a and 5a and recessed surfaces 4b and 5b of the same shape corresponding to or accommodated in the rotational direction of the cam 4, respectively. A single operation type tilt telescopic steering device for a vehicle, which is formed respectively. According to claim 1, wherein the gear member is located in the lower portion of the tilt lever (9) and the moving gear member (10) is lifted while the end is pressed by the tilt lever (9) when pulling the operation cable (7) And the gears 11a formed on the steering column 6 so as to be engaged or separated from each other while maintaining or releasing the fixing force while forming the gears 11a engaged with the gears 10a formed on the moving gear member 10. Single-operation type tilt telescopic steering device for vehicles characterized by the above-mentioned.

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