KR101135139B1 - Apparatus and method for display angle control of navigation - Google Patents

Abstract

The present invention relates to a viewing angle adjusting device and a method of adjusting the built-in navigation for adjusting the viewing angle of the built-in navigation so that the driver can easily check the screen, in the viewing angle adjusting device of the built-in navigation, a mounting space in which the navigation body is mounted is formed Motors installed at first and third corner portions of the frame that are opposite to each other to generate rotational force, first and third horizontal rotational motions of the motors converted to linear reciprocating motions, and transmitted to the first and third corners of the navigation body; The second joint part, the connecting member for connecting the second edge portion of the navigation body to the second edge portion of the frame to be rotatable and the fourth edge portion of the navigation body to support the one side is slidably moved in the front and rear direction. Fixed to the fourth corner of the frame and the other side And providing a structure comprising a support bar which is inserted through the insertion groove formed in the four corners of the Navigation unit.

By using the above-described angle-of-view adjusting device of the built-in navigation and a control system and method using the same, the built-in navigation main body is moved not only in the vertical direction but also in the left direction by using a joint portion that converts the horizontal rotational motion of the motor into a linear reciprocating motion. Can also be rotated.

Navigation, Joints, Viewing Angles, Rotations

Description

Viewing angle adjusting device and control method of built-in navigation {APPARATUS AND METHOD FOR DISPLAY ANGLE CONTROL OF NAVIGATION}

The present invention relates to a viewing angle adjusting device and an adjustment method of a built-in navigation, and more particularly, to a viewing angle adjusting device and an adjustment method of a built-in navigation for adjusting the viewing angle of the built-in navigation so that the driver can easily check the screen.

Navigation for the vehicle provides navigation to the destination via voice and screen while the vehicle is driving. In particular, navigation has a function of playing a video, MP3 (MP3) file, and can also receive digital multimedia broadcast (DMB). It has a function that is used, and its usage is exploding.

The navigation system must be installed inside the vehicle to maintain a stable installation even while driving for the driver's safe driving. The type of installation of the navigation is divided into internal type and external type.

External navigation is a method of installing the navigation on the upper surface of the windshield or dashboard (Dash Board) of the vehicle by using the adsorption holder. An example of a cradle for installing such an external navigation system is disclosed in Korean Utility Model Registration No. 20-0441168 (registered on July 22, 2008, hereinafter referred to as 'prior art 1').

The display holder according to the related art 1 is a transparent suction plate, a suction support formed of a translucent material, a connection formed of a translucent material, a first screw for adjusting the bite pressure between the suction support and the connection, and can be rotated at the connection end and formed of a translucent material. And a second screw which is provided on the fixing part and the connecting part and the fixing part connecting part which can fix the display to adjust the bite pressure between the connecting part and the fixing part.

The display cradle according to the related art 1 has an advantage of easily installing an external navigation system, a low cost of the cradle, and moving the screen of the navigation in up, down, left, and right directions.

However, the external navigation using the display holder of the prior art 1 is installed on the windshield or upper dashboard to obscure the driver's vision, impair the aesthetics of the vehicle, and may cause theft and serious injury in traffic accidents. There was a problem that the risk of falling efficiency due to the high installation.

In order to solve this problem, the navigation is embedded in the center fascia of the vehicle and installed in a built-in type. An example of such built-in navigation is disclosed in Korean Utility Model Registration No. 20-0444579 (registered on May 14, 2009, hereinafter referred to as 'Prior Art 2').

Built-in navigation according to the prior art 2 is formed in the upper portion of the inner center fascia of the vehicle and is inserted into the embedded groove formed in the engaging projection protruding on the left and right sides to support the navigation and at the same time to cover the embedded groove, but the front of the navigation An opening provided to expose the screen display part, a rectangular frame-shaped front frame in which a navigation is inserted into and fixed to the inner side of the opening, an upper surface member protruding from the upper surface and both sides of the front frame, and extending rearward to cover the buried groove; It comprises a side member, and a hook member that is fitted to the engaging jaw formed on both sides of the left and right grooves at the bottom of the side member.

Since the built-in navigation according to the prior art 2 is embedded embedded in the vehicle, it is difficult to secure the viewing angle more accurately than the external navigation because the screen angle cannot be adjusted.

Although the built-in navigation according to the related art 2 adjusts the viewing angle in the vertical direction by using a tilt function for adjusting the vertical tilt, the viewing angle cannot be adjusted in the left and right directions, thereby providing the driver with an optimized viewing angle. There was a problem that could not be done.

The present invention is to solve the problems as described above, an object of the present invention is to provide a viewing angle adjusting device and an adjustment method of the built-in navigation that can adjust the viewing angle of the built-in navigation in the vertical direction and the left direction.

According to a feature of the present invention for achieving the object as described above, the present invention, in the viewing angle adjusting device of the built-in navigation, the motor is installed on the first and third corner portions of the frame facing each other, generating a rotational force, the And first and second joint parts for converting the horizontal rotational motion of the motor into a linear reciprocating motion, a fixing part for fixing the second edge part of the frame, and a supporting rod for supporting the fourth edge part of the frame.

The present invention further includes a sensing means for sensing a driver's posture or a distance from the driver, a switch for selecting the driving of the motor, and a controller for controlling the driving of the motor based on an output signal of the sensing means or the switch. It features.

Each of the first and second joint parts may include a first joint for converting a horizontal rotational motion of the motor into a vertical rotational motion, a second joint for converting the vertical rotational motion of the first joint into a linear reciprocating motion, and And a third joint for linearly moving the navigation body by a linear reciprocating motion of the second joint.

The first joint is characterized in that it comprises a worm wheel for converting the rotation direction of the worm gear installed in the rotating shaft of the motor in the vertical direction and the gear portion formed with a screw thread to transfer the rotational movement of the worm wheel to the second joint.

The second joint is formed in a cylindrical shape through which the gear portion is inserted into a central portion, and is coupled to the screw thread at one end thereof, and includes a locking protrusion to convert the vertical rotational movement of the gear portion into a linear reciprocating movement. .

The third joint may include a pair of couplers coupled to the second joint and the navigation body or the frame and the navigation body, respectively, and a connecting rod connecting the pair of couplers.

The fixing part is fixed to the fixture and one side is connected to the fixture, the other side is characterized in that it comprises a fixing rod coupled to the navigation body.

The support rod is characterized in that the one side is fixed to the frame and the other side is coupled to the coupling groove formed in the navigation body to support the navigation body.

The motor is characterized in that the step motor to rotate by a predetermined amount of rotation in the forward and reverse directions.

According to another feature of the invention, the invention is (i) a step of selectively driving a plurality of motors installed in the corner portion of the frame on which the built-in navigation body, (ii) horizontal rotation of the selected driven motor Converting the motion into a linear reciprocating motion and (iii) adjusting the viewing angle of the navigation body by the linear reciprocating motion.

The step (iii) is characterized in that for driving the motor based on at least one of the output signal of the sensing means for detecting the driver's posture or the distance to the driver and the output signal of the switch that is selected to drive the motor. .

The invention further comprises the step of: (i) returning the navigation body with its viewing angle adjusted to its original position.

The step (iii) is characterized in that, when the return signal of the switch or a return switch additionally provided or the ignition key is operated off, the navigation body whose viewing angle is adjusted is returned to its original position.

When the switch selects driving of the first and second motors installed in the first and third edge portions of the frame which are sequentially or simultaneously opposed to each other, the first and second motors are sequentially or simultaneously driven to drive the navigation device. It is characterized by adjusting the viewing angle of the main body.

As described above, the present invention can rotate the built-in navigation body in the left direction as well as the vertical direction by using a joint portion for converting the horizontal rotational motion of the motor into a linear reciprocating motion.

Accordingly, the present invention provides an angle of view optimized for the driver's field of vision so that the screen of the built-in navigation can be easily checked during driving, thereby preventing safety accidents caused by the use of the navigation.

Hereinafter, a view angle adjusting device and a method of adjusting a built-in navigation according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a device for adjusting a viewing angle of a built-in navigation according to a preferred embodiment of the present invention, FIG. 2 is a perspective view of a device for adjusting a viewing angle of a built-in navigation shown in FIG. 1, and FIG. 3 is a switch shown in FIG. 1. An illustration of the.

First, with reference to Figure 1 will be described in detail the configuration of the viewing angle adjustment device of the built-in navigation according to a preferred embodiment of the present invention.

As shown in FIG. 1, the viewing angle adjusting device of the built-in navigation of the present invention includes a navigation main body (hereinafter, abbreviated as 'body') 1, a joint part 2, a motor 3, a switch 4, and a sensing unit. It comprises a means (5) and the control unit (6).

Although not shown, the main body 1 includes a GPS receiver for receiving a GPS signal from a satellite positioning system (GPS), a storage unit for storing an electronic map, and a GPS signal and an electronic map. It includes a control unit for controlling to display the current location by mapping, to guide the route by setting the destination.

The joint part 2 is provided in a frame provided to install the main body 1 inside the vehicle, and moves the main body 1 in the vertical direction and the left direction. The structure of the said joint part 2 is demonstrated in detail with reference to FIG.

The motor 3 performs a rotational movement to provide a rotational force to the joint part 2 under the control of the control unit 6 receiving the selection signal from the switch 4. The motor 3 may be rotated in a forward direction and a reverse direction, and it is preferable to use a step motor that rotates according to a preset rotation amount.

The switch 4 receives the driving of the motor 3 according to the driver's operation and transmits the selection signal to the controller 6. The switch 4 is preferably installed in the main body 1, the handle or the dashboard so that the driver can easily operate. The configuration of the switch 4 will be described in detail with reference to FIG. 3.

The sensing means 5 is installed in the main body 1 or a room mirror, and detects a driver's posture or a distance to the driver and transmits it to the controller 6. For example, the sensing means 5 may detect the position of the driver's head to detect the driver's posture or the distance to the driver. The sensing means 5 may be provided with any one or more of a radioactive body, an ultrasonic sensor, and an infrared sensor for emitting radiation or ultrasonic waves, infrared rays, in order to detect the position of the head of the driver or the distance to the head. At least one of a visible band camera for photographing the head of the image, a thermal image sensor for collecting a thermal image.

The controller 6 controls the driving of the motor 3 so that the main body 1 rotates in the up and down direction and the left direction in accordance with the output signal of the switch 4 or / and the sensing means 5. The controller 6 may be configured as a separate micro control unit, or may be configured to use the control unit of the main body 1 or the electronic control unit of the vehicle.

Next, with reference to Figure 2 will be described in detail the configuration of the viewing angle adjustment device of the built-in navigation.

As shown in FIG. 2, the main body 1 of the viewing angle adjusting device of the built-in navigation is mounted to the frame 10 fixed to the center fascia of the vehicle.

The frame 10 is formed in a substantially rectangular parallelepiped shape when viewed from the front, and a mounting space in which the main body 1 is mounted is formed in the center portion.

The joint part 2 includes first and second joint parts 20 and 20 'installed at first and third edge parts of the frame 10 that are opposite to each other, and a connection part 30 installed at a second edge part. ) And the supporting rod 40 is installed on the fourth corner portion.

For example, first and second joint parts 20 and 20 'are provided at the upper left corner part (first corner part) and the lower right corner part (third corner part) of the frame 10. In addition, the connecting portion 30 is provided at the lower left corner portion (second corner portion) of the frame 10, and the support portion 40 is provided at the upper right corner portion (fourth corner portion) of the frame 10. do.

Each of the first and second joint parts 20 and 20 'converts the horizontal rotational motion of the first and second motors 3 and 3' into a vertical rotational motion in the state shown in FIG. The main body 1 according to the linear reciprocating motion of the first joint 21, the second joint 22 and the second joint 23 for converting the vertical rotational motion of the first joint 21 into linear reciprocating motion. It includes a third joint 23 for linear movement in the vertical direction or the left direction.

The first joint 21 is installed on the rotation shaft of the first or second motors 3 and 3 ', and the worm wheel 21a and the worm wheel 21a rotate in the vertical direction by the worm gear 3a rotating in the horizontal direction. It includes a gear portion (21b) for transmitting the vertical rotational motion of the second joint 22). The gear portion 21b is formed with a thread so that the engaging protrusion 22a of the second joint 22 is engaged.

The second joint 22 is formed to penetrate the center portion so that the gear portion 21b of the first joint 21 is inserted, and at one end thereof, a locking protrusion 22a is engaged with the thread of the gear portion 21b. Is formed.

The third joint 23 is formed in a spherical shape so as to be coupled to the main body 1 and the second joint 22, respectively, and the first and second coupling holes 23a and 23b and the first and second joints 23a and 23b. It is composed of a connecting rod (23c) connecting between the coupling sphere (23a, 23b).

The second joint 22 and the third joint 23 may be integrally formed, but the third joint 23 is the second coupler 23b when the main body 1 is rotated vertically or leftward. It is preferable to form the second joint 22 and the third joint 23 to be rotated in the vertical or horizontal direction around the center.

In addition, the connection part 30 is a connector 31 which is coupled to the lower left corner of the frame 10 and one side is coupled to the connector 31 and the other end is coupled to the lower left of the main body 1 32 It is configured to limit the displacement of the lower left corner portion of the main body 1 to the length of the connecting rod (32). Accordingly, when the first and second joint parts 20 and 20 'linearly reciprocate as the first and second motors 3 and 3' are driven, the connection part 30 is connected to the main body. Since the lower left side of 1) is limited to a certain displacement, the main body 1 rotates only in the up-down direction and the left-side direction.

One side of the support rod 40 is fixed to the upper right corner portion of the frame 10, the other side is inserted into the coupling groove 41 formed in the upper right corner portion of the main body (1). Therefore, even if the main body 1 is moved out of the mounting space of the frame 10 by sliding the forward or backward direction by the first and second joint parts 20 and 20 ', the support rod 40 is the main body ( Support the 4th corner part of 1). At this time, the diameter of the coupling groove 41 is the diameter of the support bar 40 so that the main body 1 can be smoothly moved in the vertical direction and the left direction by the first and second joint parts 20 and 20 '. It is preferably formed larger than the diameter.

Next, the structure of the switch 4 is demonstrated in detail with reference to FIG.

As shown in FIG. 3, the switch 4 has a first switch 51 for selecting the driving of the first motor 3 installed in the upper left of the frame 10 so that the upper part of the main body 1 rotates toward the driver. ), The second switch 52 and the first switch 51 for selecting the driving of the second motor 3 'installed on the lower right side of the frame 10 so that the right side of the main body 1 rotates toward the driver. A third switch 53 for returning the main body 1 rotated to the original position and a fourth switch 54 for returning the main body 1 rotated by the second switch 52 to the original position. .

The first to fourth switches 51 to 54 transmit the viewing angle adjustment signal to the controller 6 as selected by the driver. Accordingly, the controller 6 receives the viewing angle control signal and controls the driving of the first and second motors 3 and 3 '.

For example, the controller 6 may control the main body 1 to drive the motors 3 and 3 'by a preset rotational speed so that the main body 1 rotates by a preset angle, or the motor 3 according to one switch operation. , 3 ') may be controlled to drive by the maximum displacement or the maximum displacement angle of the main body 1.

In addition, although not shown, the switch 4 may further include a return switch for returning the main body 1 to its original position after the selection of the first to fourth switches 51 to 54. .

Accordingly, when the return switch is selected or the ignition key () of the vehicle is selected, the controller 6 controls the motors 3 and 3 'driven by the switch selected from the first to fourth switches 51 to 54. ) May be controlled to return to the original position by controlling to drive in the opposite direction to the driven direction.

Next, the viewing angle adjustment method of the built-in navigation according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 4, 5, 6A and 6B.

4 is a flowchart illustrating a viewing angle adjusting method of the built-in navigation according to an exemplary embodiment of the present invention, FIG. 5 is an operation state diagram of a first joint part according to the viewing angle adjusting method of FIG. 4, and FIGS. 6A and 6B are FIGS. Fig. 3 shows an operating state diagram in which the viewing angle of the main body is adjusted by the viewing angle adjusting method.

As shown in FIG. 4, the method for adjusting the viewing angle of the built-in navigation of the present invention starts as the switch 4 is operated by the driver to select the viewing angle of the main body 1 (S10). At this time, the sensing means 5 may be started by detecting the driver's head and transmitting an output signal according to the driver's posture or the distance to the driver to the controller 6.

When the switch selected in step S10 is the first switch 51 (S11), the control unit 6 drives the first motor 3 so that the upper portion of the body 1 rotates toward the driver (S12).

That is, as shown in FIG. 5, as the first motor 3 is driven, the worm gear 3a installed on the rotation shaft of the first motor 3 rotates in the horizontal direction. Then, the worm wheel 21a of the first joint 21 coupled to the worm gear 3a converts the horizontal rotational motion of the first motor 3 into the vertical rotational motion and is connected to the worm wheel 21a. The portion 21b rotates in the vertical direction. In addition, since the engaging protrusion 22a of the second joint 22 is engaged with the thread of the gear portion 21b, the second joint 22 is the first joint as the gear portion 21b rotates in the vertical direction. It linearly moves in a direction away from the joint 21. By the linear motion of the second joint 22, the third joint 23 causes the upper part of the main body 1 to linearly move toward the driver as shown in FIG. 6A (S13). For example, it is preferable that the maximum displacement of the main body 1 in the up-down direction is 1 cm, and the maximum displacement angle is set to 6 degrees.

At this time, as the upper left side of the main body 1 is linearly moved by the first joint part 21, the upper right side of the main body 1 is slid and moved in a state supported by the supporting rod 40, so that the upper left side of the main body 1 is moved. With the linear movement.

Subsequently, when the third switch 53 is selected by the driver (S14), the controller 6 controls the first motor 3 to be driven in the reverse direction of the rotation direction when the first switch 51 is selected (S15). ). Accordingly, the upper portion of the main body 1 is linearly moved in a direction away from the driver and returned to the original position (S16).

On the other hand, when the first switch 51 is not selected in step S10, and the third switch 53 is not selected and the second switch 52 is selected in step S14 (S17), the controller 6 controls the main body 1. In operation S18, the second motor 3 ′ is driven such that the right side of the linear motion linearly toward the driver.

That is, as the second motor 3 'is driven, the worm gear 3a installed on the rotation shaft of the second motor 3' rotates in the horizontal direction. Then, the worm wheel 21a of the first joint 21 coupled to the worm gear 3a converts the horizontal rotational motion of the second motor 3 'into a vertical rotational motion and is connected to the worm wheel 21a. The gear portion 21b also rotates in the vertical direction. In addition, since the engaging protrusion 22a of the second joint 22 is engaged with the thread of the gear 21b, the second joint 22 is the first joint as the gear 21b rotates in the vertical direction. It linearly moves in the direction away from (21). By the linear motion of the second joint 22, the third joint 23 causes the right side of the main body 1 to rotate in the left direction toward the driver as shown in FIG. 6B (S19). For example, it is preferable that the maximum displacement in the left direction of the main body 1 is 1 cm, and the maximum displacement angle is set to 6.5 degrees.

In this case as well, as the lower right side of the main body 1 linearly moves, the upper right side of the main body 1 slides in a state supported by the supporting rod 40 of the supporting portion 40 together with the upper left side of the main body 1. You will move in a straight line.

Subsequently, when the fourth switch 54 is selected by the driver (S20), the controller 6 controls the second motor 3 ′ to be driven in the reverse direction of the rotation direction when the second switch 52 is selected ( S21). Accordingly, the right side of the main body 1 is linearly moved in a direction away from the driver and returned to the original position (S22).

After performing step S22, the flow advances to step S14 to return the upper part of the main body 1 to its original position depending on whether the third switch 53 is selected.

If the fourth switch 54 is not selected in step S20, the control unit 6 turns off the ignition key of the vehicle (S23) so that the power supplied from the battery is cut off, or the return switch further provided is selected. When the control unit 6 controls the motor driven in the forward direction of the first and second motors 3 and 3 'in the reverse direction (S24), the main body 1 is returned to the original position (S25).

Through the above process, the present invention can rotate the viewing angle of the navigation in the left direction as well as the vertical direction can provide the driver with the optimal viewing angle.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

Although the above embodiments have been described using navigation, the present invention is not necessarily limited thereto, and the present invention is also applicable to various types of portable terminal devices, such as a portable multimedia player and a small notebook, which are to be installed and used in a vehicle. can do.

In the above embodiment, the first and second motors 3 and 3 'and the first and second joint parts 20 and 20' are installed on the upper left side and the lower right side of the frame 10 so that the main body 1 is installed. ) Rotated in the vertical direction and the left direction. However, the present invention is not necessarily limited thereto.

For example, FIGS. 7 and 8 are operation state diagrams illustrating a viewing angle adjusting method of a built-in navigation according to another embodiment of the present invention.

When the first and second switches 51 and 52 are selected sequentially or simultaneously, both the first and second motors 3 and 3 'are driven so that the first and second joint parts 20 and 20' are connected to the main body. As the upper left and lower right portions of (1) are linearly moved, the main body 1 is simultaneously rotated in the up and down direction and the left direction as shown in FIG.

Subsequently, when the third and fourth switches 53 and 54 are sequentially or simultaneously selected, the first and second joint parts 20 and 20 'are straight in the direction away from the driver. As the body moves, the body 10 returns to its original position.

When the driver's seat is applied to the right side of the vehicle, such as in the UK or Japan, the first and second motors 3 and 3 'and the first and second joint parts 20 and 20' are disposed on the upper right side of the frame 10. And installed in the lower left can be changed to rotate the main body 1 in the vertical direction and the right direction.

In addition, if necessary, the support unit 40 may be installed instead of the connection unit 30 installed on the lower left side of the frame 10, or the motor 3 and the first joint part 20 may be added to move the main body 1 upward and downward. It may be changed to rotate in the horizontal direction.

In addition, in the above embodiment, the upper portion of the main body 1 has been described as linearly moving toward the driver, but the viewing angle may be changed to face the passenger in the passenger seat. That is, when the first or second motors 3 and 3 'are driven in the reverse direction as the third or fourth switches 53 and 54 are selected, the main body 1 is driven from the driver as shown in FIG. Straight line movement away. Subsequently, when the first or second switches 51 and 52 are selected, the first or second motors 3 and 3 'may be driven in a forward direction to change the main body 1 to return to its original position.

1 is a block diagram of a device for adjusting the viewing angle of a built-in navigation according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of the viewing angle adjustment device of the built-in navigation shown in FIG.

3 is an exemplary view of the switch shown in FIG.

4 is a flowchart illustrating a method of adjusting a viewing angle of a built-in navigation according to a preferred embodiment of the present invention.

5 is an operating state diagram of the first joint part by the viewing angle adjusting method of FIG. 4.

6A and 6B are operating state diagrams in which the viewing angle of the main body is adjusted by the viewing angle adjusting method of FIG. 4.

7 and 8 is an operating state diagram illustrating a viewing angle adjustment method of the built-in navigation according to another embodiment of the present invention.

`` Explanation of symbols for main parts of drawings ''

1: Navigation body 2: Joint part

3,3 ': motor 4: switch

5: sensing means 6: control unit

10: frame 20: first joint

20 ': Joint 2 21: Joint 1

22: second joint 23: third joint

30: connecting portion 40: support rod

Claims (14)

In the viewing angle adjusting device of the built-in navigation, A motor installed on the first and third edge portions of the frame having a mounting space to which the navigation body is mounted to face each other to generate rotational force, First and second joint parts for converting the horizontal rotational motion of the motor into a linear reciprocating motion and transferring the first and third corners of the navigation body; A connecting portion for rotatably connecting the second edge portion of the navigation body with the second edge portion of the frame; One side is fixed to the fourth corner portion of the frame to support the fourth edge portion of the navigation body to be slidably moved forward and backward and the other side includes a support rod inserted through an insertion groove formed in the fourth edge portion of the navigation body. and, The first corner portion is the upper left portion of the frame and the navigation body, The second corner portion is a viewing angle adjusting device of the built-in navigation, characterized in that the lower left portion of the frame and the navigation body. The method of claim 1, Sensing means for detecting a driver's posture or distance from the driver, A switch for selecting a drive of the motor; And a control unit for controlling the driving of the motor based on an output signal of the sensing means or the switch. The method of claim 2, wherein each of the first and second joint portion A first joint for converting the horizontal rotational motion of the motor into a vertical rotational motion, A second joint for converting the vertical rotational motion of the first joint into a linear reciprocating motion; and And a third joint for linearly moving the navigation main body by a linear reciprocating motion of the second joint. The method of claim 3, wherein the first joint Worm wheel for converting the rotation direction of the worm gear installed in the rotation axis of the motor in the vertical direction and Device for adjusting the viewing angle of the built-in navigation, characterized in that it comprises a gear formed with a screw thread to transmit the rotational movement of the worm wheel to the second joint. The method of claim 4, wherein the second joint It is formed in a cylindrical shape penetrated so that the gear portion is inserted into the central portion, the viewing angle adjustment of the built-in navigation, characterized in that it comprises a locking projection coupled to the screw thread at one end to convert the vertical rotational movement of the gear portion into a linear reciprocating motion Device. The method of claim 5, wherein the third joint A pair of couplers coupled to the second joint and the navigation body or the frame and the navigation body, respectively; Viewing device of the built-in navigation, characterized in that it comprises a connecting rod for connecting the pair of coupling spheres. The method of claim 2, wherein the connecting portion A connector rotatably coupled to a second edge portion of the frame; One side is connected to the connector, the other side is a viewing angle adjustment device of the built-in navigation, characterized in that it comprises a connecting rod connected to the second corner portion of the navigation body. delete The method of claim 2, wherein the motor A device for adjusting the viewing angle of built-in navigation, characterized in that the step motor rotates by a predetermined rotation amount in the forward and reverse directions. (Iii) selectively driving a plurality of motors installed at the corners of the frame on which the built-in navigation body is mounted; (Ii) converting the horizontal rotational motion of the selected and driven motor into a linear reciprocating motion; and (Iii) adjusting the viewing angle of the navigation body by the linear reciprocating motion, The step (iii) drives the motor based on at least one of an output signal of a sensing means for detecting a driver's posture or a distance from the driver and an output signal of a switch selected to drive the motor, In step (iii), if the switch in step (ii) selects driving of the first and second motors installed in the first and third corner portions of the frame which are sequentially or simultaneously opposed to each other, And driving the two motors sequentially or simultaneously to adjust the viewing angle of the navigation body in the vertical direction and / or the left direction. delete The method of claim 10, (Iii) returning the navigation body whose viewing angle is adjusted to its original position. 13. The method of claim 12, wherein step (iii) And when the return signal of the switch or a return switch further provided or the ignition key is turned off, return the navigation body whose view angle is adjusted to its original position. delete

Images