KR20030011188A - An auxiliary steering device with steering degree indicator - Google Patents

Abstract

PURPOSE: A steering-auxiliary mechanism equipped with a wheel-steering angle indicator is provided to easily and safely perform steering wheel-operation by installing a wheel-steering angle indicator to a steering-auxiliary mechanism. CONSTITUTION: A steering-auxiliary mechanism equipped with a wheel-steering angle indicator comprises a case(10) fixed to a steering wheel; a central shaft(30) housed in the case; a handle(20) supported to the central shaft; a transparent protective plate(21) installed on the handle; a cylindrical scale plate(50) with a notch mark indicating rotation of wheels; a moving plate housed in the scale plate, with having gear teeth formed on the inner wall and a rotational frequency-indicating hand pictured on the top; an angle-indicating hand disposed between the scale plate and the moving plate and fixed at the end portion of the central shaft; a first gear disposed inside the moving plate and fixed to the central shaft; a second gear transmitting rotation of the first gear to a third gear engaged with the teeth formed on the inner walls of the second gear and the moving plate; and a base plate supporting the second gear and the third gear and fixing the scale plate. The base plate is supported to the central shaft, to freely rotate, with a weight at an end. The steering-auxiliary mechanism is simply assembled and disassembled and therefore, the expense is cut down.

Description

An auxiliary steering device with steering degree indicator

The present invention relates to a steering assist mechanism equipped with a wheel steering angle indicator, and more particularly, to a steering assist mechanism capable of rotating the steering wheel more easily, by installing a wheel steering angle indicator indicating a rotation angle of the wheel. This is to make the operation easier and safer.

In the case of re-starting a parked or parked vehicle, if the front wheel is steered and not aware of it, the risk of unexpected accidents is very high, so how much the front wheel is rotated for safety, ie steering angle Should be checked.

In this case, the experienced driver can see how much of the steering wheel by looking at the position of the steering wheel, but if the driver is inexperienced or the first time to drive another vehicle, you must check the position of the tire by eye.

In order to improve this point, a device for displaying a steering angle of a vehicle, that is, a wheel steering angle indicator has been conventionally used. These steering angle indicators can be roughly classified into two types, electronic and mechanical.In the case of the electronic steering angle indicator, a sensor roll for detecting a rotation angle is installed in a steering column, and a separate display device is installed on the instrument panel. It is displayed through.

The mechanical steering angle indicator is attached to the center of the cover of the steering wheel, as shown in FIG. 1, and therein, a housing using a weight is installed therein, and a reduction gear and an indicator needle connected to the reduction gear are installed in the housing to adjust the steering angle. It is configured to display.

The prior art as described above provides the convenience of knowing the steering state of the wheel in the driver's seat, but the electronic device is complicated in its configuration, not only increases the manufacturing cost, but also has the disadvantage that it is practically impossible to attach to already produced vehicles. have.

Unlike the electronic, the mechanical device can be attached and detached at any time because it is only attached to the steering wheel cover. However, the mechanical device is protruded from the steering wheel cover, so it can be fatally damaged in the event of a frontal collision. . In particular, in recent years, the driver's seat airbag is installed as a standard vehicle, but since the steering wheel cover is torn and the airbag is inflated when the airbag is operated, it is inevitable that the steering angle indicator attached to the steering wheel cover is separated during this process. There is a problem that can cause very serious injuries.

The present invention has been made to overcome the disadvantages of the prior art as described above, while maintaining the advantages of the mechanical steering angle indicator, and also provides a steering aid equipped with a wheel steering angle indicator without the risk of injury to the driver during a collision. It is technical problem to do.

1 is a plan view showing a conventional mechanical wheel steering angle indicator.

2 is a cross-sectional view of one embodiment of a steering aid according to the present invention.

3 is a partially enlarged view of the portion indicated in FIG.

4 is an exploded perspective view of the wheel steering angle indicator in the embodiment shown in FIG.

5 is a cross-sectional view of the wheel steering angle indicator shown in FIG.

6 is a plan view of the scale plate of the wheel steering angle indicator shown in FIG.

7 is a plan view of a moving plate of the wheel steering angle indicator shown in FIG.

8 is a plan view of the wheel steering angle indicator shown in FIG.

9 is a cross-sectional view of the wheel steering angle indicator of a second embodiment of a steering aid according to the present invention.

[Explanation of symbols for the main parts of the drawings]

10... Case 20. handle,

21. Protection plate, 30. Central Axis,

31. Flange, 32, 33... Height adjusting groove,

40…. Fixed pin, 41... projection part,

42. ... spring,

50... . Moving Plate,

61. Angle indicator hand 62. 1st Gear,

63. Second gear 65. Third Gear,

67. 70 rpm indicator hand; Base plate,

71. Weight, 72... live,

80... Brake weight 81. Construction Worker,

90... First lower gear 91. Second lower gear,

92. Gear inside.

In order to achieve the above technical problem, the present invention, the case is detachably fixed to the steering wheel; A central shaft accommodated in the case, a handle supported to rotate freely on the central shaft and having a cylindrical space therein, and a transparent protective plate installed on an upper surface of the handle; A cylindrical scale plate having a scale indicating a rotation of the wheel on the upper surface of the transparent material and having an open bottom surface; A moving plate accommodated in the scale plate and supported to rotate freely on the central axis, the moving plate having a gear tooth on an inner wall thereof, and a rotation speed indicator needle being drawn on the upper surface thereof; An angle indicator hand positioned between the scale plate and the moving plate and fixed to an end portion of the central axis; A first gear positioned inside the moving plate and fixed to a central axis; a second gear positioned on a side of the first gear and transmitting rotation of the first gear; and a second gear and the moving plate. A third gear engaged with the tooth formed on the inner wall of the second gear; And a base plate supported on the central axis to support the second gear and the third gear, to fix the scale plate, and to rotate freely with a weight at one end.

Here, the means for fixing the case to the steering wheel is generally known, so the present invention is not specifically limited thereto. Since the central axis is fixed to the case and the handle is free to rotate about the central axis, even if the handle rotates with respect to the case in use, the central axis does not rotate by the inside of the case.

The scale plate, the moving plate, the angle indicator hand, the first to third gears and the base plate constitute one steering angle indicator, which is housed inside the handle. In addition, although the scale indicating the number of revolutions of the steering wheel is imprinted on the scale plate, since the maximum number of revolutions of the steering wheel varies depending on the vehicle, the specific number of the scales is not limited in the present invention.

In addition, the present invention in the steering aid mechanism in the circumferential direction of the rib formed on the bottom surface of the base plate, the side of the rib in contact with, one end is extended in the longitudinal direction for inserting the central axis It further comprises a brake weight that is supported to rotate freely on the central axis.

The brake weight is in contact with the side surface of the rib when fitted to the central axis, and when the brake weight is mounted on the steering wheel, the rib is pressed by the weight. Since the long hole formed in the brake weight is extended in the longitudinal direction, when the brake is mounted, the brake hole is movable in the vertical direction of the additional brake but cannot move from side to side.

In addition, the present invention is the bottom surface of the base plate is formed with an annular inner gear having it on the side, the first lower gear which is located in the lower portion of the base plate and fixed to the central axis, the side of the first lower gear It further comprises a second lower gear positioned in engagement with the teeth of the internal gear.

The present invention also comprises a flange formed at the end of the central axis, two or more height adjusting grooves formed on the side of the central axis, and two cylindrical space portions formed to accommodate the central axis to slide up and down in the case and having different diameters. A central pin receiving portion, a fixed pin receiving portion formed of two cylindrical space portions having different diameters on the side of the central axis receiving portion, an annular locking jaw installed at the end of the fixing pin receiving portion, and a protrusion on the body portion; It is characterized in that it further comprises a fixing pin is formed, and a spring interposed between the protrusion and the locking step of the fixing pin.

The lower diameter of the central axis is the same as the portion having a smaller diameter in the cylindrical space portion, and the diameter of the flange of the central axis is the same as the portion having the large diameter in the cylindrical space portion. In addition, the spring is to push the fixing pin in the direction of the central axis, the end of the fixing pin is inserted into the height adjustment groove formed on the side of the central axis. In the present invention, the number and position of the height adjustment grooves are not particularly limited.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the steering aid according to the present invention.

2, the case 10 has a steering wheel fixing portion and a central axis receiving portion to be described later, the steering wheel fixing portion is formed with a semi-circular groove 12, as shown, the same shape thereon The cover 13 with the grooves 14 is bolted. Thus, the steering wheel is fixed between the grooves 13, 14.

The handle 20 has a cylindrical space for accommodating a steering angle indicator therein, and a protective plate 21 made of a transparent material is fixed to the upper surface. In addition, the handle 20 is supported to be freely rotated on the upper portion of the central shaft 30 by a bushing or the like.

The central shaft 30 is fixed to the case 10 so as not to rotate. In addition, the lower portion of the central shaft 30 has a larger diameter than the upper portion, and the flange 31 is formed at the lower end. The case 10 has a central axis receiving portion formed of two cylindrical spaces having different diameters. As shown in FIG. 2, the diameter of the flange 31 and the portion of which the diameter is expanded is 2 of the case 10. Having the same diameter as the two cylindrical spaces, the central axis 30 can slide up and down within the central axis receiving portion.

Two height adjustment grooves 32 and 33 are formed on the side of the diameter-extended portion of the central shaft 30. The end of the fixing pin 40 is inserted into the height adjusting groove to prevent the central shaft 30 from moving up and down. Referring to Figure 3, the fixing pin 40 is inserted into the fixing pin receiving portion formed on the side of the case 10, the fixing pin receiving portion is a cylindrical space portion different in two diameters similar to the central axis receiving portion Is done. In addition, the protrusion 41 is formed on the body portion of the fixing pin 40, the locking jaw 42 is fixed to the outer end of the central shaft receiving portion.

The locking jaw 42 has the same shape as the washer and interposes the spring 43 with the protrusion 41. The spring 43 applies an elastic force in the direction in which the fixing pin 40 is pushed toward the central axis 30.

A wheel steering angle indicator will be described with reference to FIGS. 4 to 7.

The scale plate 50 is located at the top of the steering angle indicator. The scale plate 50 has a flat cylindrical shape with one side open, and a scale indicating the number of revolutions of the steering wheel is imprinted on the upper surface of the transparent material. The scale plate 50 is fixed to the base plate 70 to be described later, and freely rotates about the central axis 30 as an axis integrally with the base plate 70.

An angle indicating needle 61 fixed to the central axis 30 is positioned below the scale plate 50, and a moving plate 60 is positioned below the angle indicating needle 61. The moving plate 60 has the same shape as the scale plate 50 but has a smaller size than the scale plate 50 so that the moving plate 60 can be accommodated in the inside of the scale plate 50. A gear is formed at the end of the inner wall of the moving plate 60 and is supported by the central shaft 30 so as to rotate freely with respect to the central shaft 30.

Further, the rotation speed indicating needle 67 is drawn on the upper surface of the moving plate 60 (see FIG. 7). Therefore, when the moving plate 60 is accommodated in the lower portion of the scale plate 50, the upper surface of the scale plate 50 is made of a transparent material, so that both the angle indicator needle 61 and the rotational speed indicator needle 67 are the scale plate 50. This can be seen through the upper surface (see Figure 8).

The first gear 62 is fixed to the central axis 30 at the lower portion of the moving plate 60, and the second gear 63 meshing with the first gear 62 has two stages as shown. The upper teeth engage with the first gear 62 and the lower teeth engage with the third gear 65. The second gear 63 is fixed to the base plate 70 by a pin 64, so that the second gear 63 can freely rotate on the base plate 70. A third gear 65 engaged with the teeth formed on the inner wall of the moving plate 60 is positioned at the side of the second gear 63. The third gear 65 is also fixed to the base plate 70 in the same manner as the second gear 63.

The base plate 70 is supported by the central axis 30 so as to rotate freely with respect to the central axis 30, and fixes the scale plate 50, the second gear 63, and the third gear 65. . In addition, a weight 71 is formed on the bottom of the base plate 70 in the radially outer side, and ribs 72 are formed to protrude in a circumferential direction in the radial direction than the weight 71. In FIG. 5, the cross section of the rib 72 is shown bent at 90 °, and the end portion 82 of the brake weight 80 is in contact with the end surface of the rib 72. The rib 72 may be formed in an annular shape along the circumferential direction.

The brake weight 80 has a fan shape as shown in FIG. 4, and an end hole 81 extending in a longitudinal direction is formed at one end thereof, and a central axis 30 is inserted into the long hole 81. . Therefore, the brake weight 80 can move along the longitudinal direction.

The operation of the above embodiment will be described in detail.

When the steering aid is mounted on the steering wheel, since the steering wheel is generally inclined at an angle with respect to the ground, the base plate 70 and the scale plate 50 fixed to the base plate 70 are The weight of the weight 71 positioned on the bottom of the base plate 70 faces the ground. Similarly, the brake weight 80 also faces the ground, and as described above, the base plate 70 and the brake weight 80 are supported to rotate freely about the central axis 30, so that the steering wheel is at any position. Is always in the same direction, ie the direction towards the ground.

At this time, the angle indicator needle 61 and the rotation speed indicator needle 67 are both set to point to the center of the scale displayed on the upper surface of the scale plate 50, that is, zero.

The central axis 30 is fixed in the case 10 and is configured not to rotate with respect to the case 10. On the other hand, the handle 20 is supported to rotate freely about the central axis (30). If the user grasps the handle 20 and rotates the steering wheel one round, the central shaft 30 has one revolution and one rotation about the steering column, and the handle 20 has one revolution. It will not rotate.

As described above, since the base plate 70 is always fixed in a constant direction toward the ground by the weight 71, the central axis 30 is eventually rotated relative to the base plate 70 by one rotation. Will be The gear ratios of the first to third gears 65 and the moving plate 60 are determined to a specific value. For example, the moving plate 60 rotates by 1/12 while the central axis 30 is rotated once. If it is set to, the rotation speed indicating needle 67 drawn on the upper surface of the moving plate 60 is also rotated 1/12.

Therefore, when the steering wheel is rotated once, the scale plate 50 is the same as the initial position, but the moving plate 60 is rotated by 1/12, and as a result, the rotation speed indicator 67 is rotated by 1/12. While moving to indicate the position of the scale '1' previously imprinted on the scale plate 50 to inform the driver the number of revolutions of the steering wheel.

The angle indicator 61 displays the angle at which the steering wheel is rotated. That is, since it is fixed to the central axis 30, when the central axis 30 is rotated 90 degrees, the angle indicator hand 61 is also rotated 90 degrees, when viewed through the top surface of the scale plate 50, the scale ' After the central axis 30 is rotated 90 degrees in the position of 0 ', it is in the position rotated 90 degrees with respect to the scale plate 50.

In order to achieve the above-described action accurately, the scale plate 50 and the base plate 70 fixing the scale plate 50 should always face the ground, but the brake weight 80 serves as the weight 71. To help. That is, since the brake weight 80 inserts the central axis 30 into the long hole 81 extending in the longitudinal direction, when the brake weight 80 is mounted to the steering wheel, the end portion of the rib 72 is pressed by its own weight. Thus, the scale plate 50 is more securely fixed so as not to move.

If, for safety or other reasons, the handle 20 is not used, the fixing pin 40 is slightly pulled out to the outside, and then the handle 20 is pushed into the central shaft accommodating part and the fixing pin is again. When the 40 is placed, it is fixed with the groove 33 on the upper side of the groove formed on the side of the central axis 30 so that the central axis 30 is fixed without moving.

Next, referring to FIG. 9, a second embodiment of a steering aid according to the present invention will be described. However, the second embodiment is the same as the first embodiment except for the configuration of the bottom surface of the base plate 70, only the differences will be described.

The first lower gear 90 is fixed to the central shaft 30 at the lower portion of the base plate 70, and the second lower gear 91 is positioned at the side of the first lower gear 90. In addition, an inner gear 92 protruding in an annular shape is formed below the base plate 70, and teeth are formed on a side surface of the inner gear 92 so as to be engaged with the second lower gear 91.

The gear ratio of the first lower gear 90, the second lower gear 91 and the inner gear is formed to be 1: 1, so that when the central shaft 30 is rotated once, the base plate 70 having the inner gear also formed It rotates once in the direction opposite to the rotational direction of the central axis (30).

For this reason, the base plate 70 rotates in the opposite direction as the central axis 30 rotates, so that the base plate 70 always faces the first fixed position, that is, the position toward the ground.

According to the present invention having the above-described configuration, the base plate is reliably fixed to always face the ground, so that the driver can more accurately grasp the steering angle of the wheel even in the driver's seat, and even if the steering wheel is suddenly rotated, the base plate is idling by inertia. Can be prevented.

In addition, it is not necessary to purchase a steering aid and a wheel steering angle indicator separately, and even when the vehicle is replaced, it is possible to simply attach and detach, thereby reducing the expense of the cost.

In addition, since the height of the handle can be lowered when necessary, it also provides an effect of eliminating the risk of fatal injury even in an accident.

Claims (4)

A case 10 detachably fixed to the steering wheel; A central shaft 30 accommodated in the case 10, a handle 20 freely rotated on the central shaft 30 and having a cylindrical space therein, and a transparent portion installed on an upper surface of the handle 20. A protective plate 21; A cylindrical scale plate 50 having a scale indicating a rotation of a wheel on an upper surface of a transparent material and having an open bottom surface; A moving plate 60 accommodated in the scale plate 50 and supported to rotate freely on the central axis 30 and having a gear tooth on an inner wall thereof, and a rotation speed indicator needle 67 being drawn on an upper surface thereof; An angle indicator (61) positioned between the scale plate (50) and the movable plate (60) and fixed to an end of the central axis (30); The first gear 62 is located inside the moving plate 60 and is fixed to the central shaft 30, and is positioned on the side of the first gear 62 and rotates the first gear 62 to the third gear. A second gear (63) to be transmitted to (65), a second gear (63) and a third gear (65) engaged with the teeth formed on the inner wall of the moving plate (60); A base plate supported by the central shaft 30 to support the second gear 63 and the third gear 65, fix the scale plate 50, and freely rotate with the weight 71 at one end; A steering aid equipped with a wheel steering angle indicator, characterized in that consisting of (70). The method of claim 1, The bottom surface of the base plate 70 in contact with the rib 72 formed in the circumferential direction, and the side surface 73 of the rib 72, one end in the longitudinal direction for inserting the central axis 30 Therefore, the steering aid having a wheel steering angle indicator, characterized in that it further comprises a brake weight (80) having an extended long hole (81), which is supported to rotate freely on the central axis (30). The method of claim 1, An underside of the base plate 70 is formed with an annular inner gear 92 having a side surface thereof, the first lower gear 90 positioned below the base plate 70 and fixed to the central axis 30. And a second lower gear 91 positioned on the side of the first lower gear 90 and engaged with the teeth of the internal gear 92. . The method according to any one of claims 1 to 3, Flange 31 formed at the end of the central shaft 30, two or more height adjustment grooves (32, 33) formed on the side of the central shaft 30, and the central shaft 30 in the case 10 A central pin receiving portion formed to accommodate the slide up and down and having two cylindrical spaces having different diameters, a fixed pin receiving portion formed of two cylindrical spaces having different diameters and formed on the side of the central axis receiving portion, and the fixing An annular locking jaw 42 installed at the end of the pin receiving portion, a fixing pin 40 having a protrusion 41 formed on the body portion, and a protrusion 41 and a locking jaw 42 of the fixing pin 40. Steering aid equipped with a wheel steering angle indicator, characterized in that it further comprises a spring (43) interposed between.