KR20090083988A - Angle control type headrest monitor - Google Patents

Abstract

An angle adjustable headrest monitor is provided to adjust the angle of the monitor according to the angle the seat back of the front seat is pulled back. An angle adjustable headrest monitor comprises a monitor(11), a monitor case(12), a monitor case pivot, and a monitor pivot. The monitor is mounted inside the monitor case. The monitor case is mounted inside a headrest(3) of a front seat(1). The monitor case pivot is installed inside the headrest to allow the monitor case to rotate. The monitor is installed to rotate via the monitor pivot inside the monitor case. The angle of the monitor case is automatically or manually varied. The monitor pivot is formed on both upper sides of the monitor.

Description

Angle control type headrest monitor

The present invention improves the monitor mounted on the rear of the headrest (aka: head restraint) of the front seat of the car to adjust the angle of the monitor according to the angle of the monitor according to the tilting angle of the seat back It is about.

In more detail, the monitor case is mounted on the inside of the headrest forming the front seat, and the monitor is mounted on the inside of the monitor case. A mandrel is installed, and a monitor installed inside the monitor case is provided with a mandrel, and the monitor case or the user can easily watch (view) the monitor when the angle of the front seat is changed. The company aims to provide an angle-controlled headrest monitor that allows the monitor to be angled manually or automatically.

In recent years, as the culture of automobiles and mass media develops rapidly, a monitor mounted on the rear of the headrest (aka headrest) that forms the front seat of the car is mounted so that the person sitting on the rear seat can watch video such as TV or DVD. You can watch it.

With reference to FIG. 1 and FIG. 2, the state which installed the monitor 11 in the front seat 1 of a normal vehicle is demonstrated.

The front seat 1 installed in the interior of the vehicle has a backrest 2 that can be adjusted automatically or manually at a lower rear side of the buttocks 4 which are horizontally installed so that they can be moved forward and backward manually or automatically. ) Is provided, and the headrest 3 is provided on the upper side of the backrest 2 to adjust the height.

The monitor case 12 is built into the headrest 3 of the front seat 1 formed as described above, and the monitor 11 has a person sitting on the rear seat 7 inside the monitor case 12. It is mounted toward the rear.

As described above, the conventional monitor 11 and the monitor case 12 installed inside the headrest 3 forming the front seat 1 are fixedly installed so that angles thereof cannot be changed. Is moved in the direction of the rear seat 7 or the angle of the backrest 2 is changed (lie down), the distance between the monitor 11 and the person sitting on the rear seat 7 becomes significantly narrowed or the monitor ( The angle of 11) is directed toward the middle of the rear seat 7, so that a person sitting on the rear seat 7 cannot easily observe the monitor 11.

In order to solve this problem, the monitor 11 may change the angle of the headrest 3 with the built-in manually, but if the angle of the headrest 3 is changed, the front seat 1 may be changed due to the variable angle. The neck of the person sitting unnaturally causes pain in the neck.

In addition, when the angle of the monitor 11 is outside the viewing angle and the viewing angle is changed, deterioration occurs in the monitor 11 to shorten the life of the monitor 11, and inversion occurs in the range outside the viewing angle, thereby degrading image quality. Or viewing becomes impossible.

The present invention seeks to provide an entirely new concept of angle-adjustable headrest monitor, which is improved to solve the above problems.

The present invention, while mounting the monitor case in the interior of the headrest forming the front seat, and the monitor inside the monitor case, the mandrel to the shaft rotatably installed the monitor case installed inside the headrest In order to provide an angle-controlled headrest monitor that can be installed to rotate the shaft of the monitor installed inside the monitor case, the angle of the monitor case or monitor can be changed manually or automatically.

It is another object of the present invention to manually change the monitor case or the monitor when the angle of the front seat is changed arbitrarily (manually or automatically) or to automatically change the angle so that the person sitting on the rear seat We want to provide an angle-controlled headrest monitor that can be easily watched, greatly improves the user's satisfaction, and does not change the angle of the headrest so that the person sitting on the front seat can maintain a natural posture. have.

Another object of the present invention is to cause the monitor to deteriorate by changing or changing the monitor so that a person sitting on the rear seat can easily observe (view) the monitor according to the position of the front seat and the angle of the backrest. Can be eliminated at the source, and when the angle of the monitor or the monitor case is to be changed automatically, the structure can be simplified and the manufacturing cost can be reduced by implementing the motor of the electric seat that is already installed without installing a separate power means. The aim is to provide an adjustable headrest monitor.

The above and other objects of the present invention,

Mounting a monitor case inside a headrest forming a front seat, and mounting a monitor inside the monitor case;

A mandrel installed on the monitor case shaft to rotatably monitor the case installed inside the headrest;

A mandrel installed on the monitor shaft to rotatably mount a monitor installed inside the monitor case;

It is achieved by an angle-adjustable headrest monitor, characterized in that formed; including a monitor case shaft or a mandrel installed in the monitor shaft or a monitor shaft or a monitor to adjust the angle manually or automatically.

The monitor case shaft for installing a mandrel rotatably installed in the monitor case inside the headrest is formed on both sides of the lower side of the monitor case;

The monitor shaft 15 which is installed in the monitor case to the mandrel rotatable the monitor, is formed on the upper side of both sides of the monitor;

The monitor case or the angle of the monitor is to be automatically changed by the monitor angle variable device; characterized in that formed.

The monitor angle variable device for automatically varying the angle of the monitor case or monitor in the above; Starting angle for electric motor and angle adjusting unit 40 by receiving the power of the headrest angle adjustment motor, and rotating the monitor case installed in the mandrel to the monitor case shaft while being driven by the electric power of the starting part to adjust the angle It is characterized in that it comprises a; electric and angle adjusting unit.

The monitor angle variable device for automatically varying the angle of the monitor case or monitor in the above; When the angle of the backrest is deformed, it is driven by the power of the backrest rotating shaft and is driven by the electric motor. It characterized in that it comprises a; the angle adjustment unit for adjusting the angle by rotating the monitor installed in the mandrel as a monitor shaft inside the head rest monitor case.

A starting unit for receiving the power of the headrest angle adjusting motor or the backrest rotating shaft and transmitting the electric power and the angle adjusting unit or the electric drive unit; Mounting the starting pulley or the first starting pulley on the headrest rotating shaft or the backrest rotating shaft, and the interlocking pulley or the first interlocking pulley on the intermediate connecting shaft, the starting pulley and the interlocking pulley or the first starting pulley and the first interlocking pulley belt. Or first hooked to each of the first belts.

Electric and angle adjusting unit for adjusting the angle by rotating the monitor case in the forward and reverse direction by the power of the starting unit; And an electric gear mounted on the intermediate connecting shaft, an electric motor gear mounted on the monitor case shaft, and a combination of the electric gear and the interlocking gear.

An interlocking part for transmitting power to the angle adjusting part while being driven by the power of the starting part; The second starting pulley is mounted on the intermediate connecting shaft equipped with the first interlocking pulley, the second interlocking pulley is installed on the lower end of the monitor case, and the second belt is attached to the second starting pulley and the second interlocking pulley. It characterized in that it was formed, including.

The angle adjusting unit for adjusting the angle by rotating the monitor to the normal and reverse in the head restraint monitor case under the power of the linkage; Asymmetric cams with cam guides formed on one side are integrally mounted on the second interlocking pulley installed with shafts, and monitor rotation guides with guide holes are mounted on the back of the monitors installed on both sides with monitor shafts. And a guide hole of the cam guide and the monitor rotation guide inserted into the cam monitor connecting shaft so as to be movable at the same time.

The present invention is to provide a completely new concept of the angle-controlled headrest monitor, mounting a monitor case in the interior of the headrest forming the front seat, the monitor inside the monitor case, the inside of the headrest The monitor case to be installed in the mandrel is installed in the axis of rotation, and the monitor installed in the inside of the case is installed in the mandrel of the axis so as to rotate the monitor case or monitor to change the angle manually or automatically. .

According to the present invention, when the angle of the front seat is changed arbitrarily (manually or automatically), the monitor case or the monitor is manually changed or the angle is automatically changed so that a person sitting on the rear seat easily monitors the monitor. (Viewing) can greatly improve the user's satisfaction, and not to change the angle of the headrest so that the person sitting on the front seat can maintain a natural posture.

In addition, the present invention is a source of the phenomenon that deterioration occurs in the monitor by varying or changing the monitor so that the person sitting on the rear seat can easily watch (view) the monitor according to the position of the front seat and the angle of the backrest. In order to automatically change the angle of the monitor or monitor case, it is possible to simplify the structure and reduce the manufacturing cost by implementing the motor of the electric seat that is already installed without installing a separate power means. .

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

2 to 8C illustrate specific implementations of the angle adjustable headrest monitor 10 according to the present invention.

2 is an exemplary view showing the installation and variable state of the angle-controlled headrest monitor 10 according to the present invention, Figures 3 and 4 and 5 according to the present invention according to the forward and backward position of the front seat of the vehicle It is an exemplary view and a graph showing a state in which the angle adjustable headrest monitor 10 is variable.

6a to 6c is an exemplary view showing a specific embodiment of the angle-controlled headrest monitor 10 according to the present invention and an operation relationship explanatory drawing, Figures 7 and 8a to 8c is installed in the front seat of the vehicle It is an exemplary view showing an embodiment of the present invention and an operational relationship diagram.

Adjustable angle headrest monitor 10 according to the present invention was formed as follows.

The monitor case 12 is mounted inside the headrest 3 forming the front seat 1, and the monitor 11 is mounted inside the monitor case 12, but inside the headrest 3. The monitor case 12 installed in the mandrel was rotatably installed on the monitor case shaft 13, and the monitor 11 installed inside the monitor case 12 was rotatably installed on the monitor shaft 15. .

The monitor case 12 or the monitor 11 installed in the mandrel as the monitor case shaft 13 or the monitor shaft 15 can be used to change the angle manually or automatically.

In particular, the monitor case 12 inside the headrest 3 has a mandrel installed on both sides of the lower end of the monitor case shaft 13, the monitor 11 inside the monitor case 12 is the upper end of both sides of the monitor shaft A mandrel was rotatably installed at (15).

The angle of the monitor case 12, which is installed on both sides of the lower side of the monitor case shaft 13, or the monitor 11, which is installed on both sides of the upper surface of the monitor case 15, is provided with a monitor angle variable device 20, 30. It can be changed automatically by.

The monitor angle variable device 20 for automatically varying the angle of the monitor case 12 is formed as illustrated in FIG. 6A.

Start-up unit 20-1 for receiving power from the headrest angle adjustment motor 21 for transmission to the electric and angle adjustment unit 20-2, and monitor case shaft while being driven under power from the start-up unit 20-1. The monitor case 11, which is installed as a mandrel (13), was formed as an electric motor and an angle adjusting unit 20-2 for adjusting the angle by rotating in the forward and reverse directions.

The starting unit 20-1 is; The starting pulley 23 is mounted on the headrest rotation shaft 22, the interlocking pulley 24 is mounted on the intermediate connecting shaft 26, and the belt 25 is attached to the starting pulley 23 and the interlocking pulley 24. gave.

The electric and angle adjusting unit 20-2; The electric gear 27 was mounted on the intermediate connecting shaft 26, and the interlocking gear 28 was mounted on the monitor case shaft 13, but the electric gear 27 and the interlocking gear 28 were formed by meshing with each other.

In addition, the monitor angle variable device 30 for automatically varying the angle of the monitor 11 is formed as illustrated in FIGS. 7 and 8a to 8c.

When the angle of the backrest 2 is deformed, the starting part 31 which is driven by the power of the backrest rotation shaft 2-1 and is transmitted to the electric drive part, and the angle adjusting part ( By rotating the power unit 35 for transmitting power to the power 40 and the monitor 11 installed with the monitor shaft 15 inside the headrest monitor case 12 under the power of the electric unit 35, the monitor 11 is rotated forward and backward. It was formed as an angle adjuster 40 for adjusting the angle.

The starting part 31 which transmits power to the transmission part 35 by receiving the power of the backrest rotation shaft 2-1, is equipped with a first starting pulley 32 in the backrest rotation shaft 2-1, and the intermediate connecting shaft. The first interlocking pulley (33) is attached to (39), and the first belt (34) is hung on the first starting pulley (32) and the first interlocking pulley (33).

The transmission unit 35 for transmitting power to the angle control unit 40 while being driven by the power of the starting unit 31; A second starting pulley 36 is mounted on the intermediate connecting shaft 39 on which the first interlocking pulley 33 is mounted, and a mandrel is installed on the lower end of the headrest monitor case 12 with a second interlocking pulley 37 as a shaft. A second belt 38 was attached to the second driving pulley 36 and the second interlocking pulley 37.

The angle adjusting unit 40 for adjusting the angle by rotating the monitor 11 in the normal and reverse direction inside the headrest monitor case 12 by the power of the transmission unit 35 was formed as follows.

On the shaft of the second interlocking pulley 37, an asymmetric cam 41 formed on one side of the cam guide 42 is integrally mounted, and a guide is provided on the rear surface of the monitor 11 in which the upper end of both sides are mandreled with the monitor shaft 15. A monitor rotation guide 43 having a length of the ball 43-1 is mounted, and a cam monitor is connected to the cam guide 42 of the asymmetric cam 41 and the guide hole 43-1 of the monitor rotation guide 43. The shaft 44 was fitted in a movable manner at the same time.

Hereinafter will be described the operating relationship of the angle-adjustable headrest monitor 10 according to the present invention.

When the backrest 2 of the front seat 1 is flipped backward as illustrated in FIGS. 2 and 4, the monitor angle variable device 30 according to the present invention illustrated in FIGS. 7 to 8c is operated to rearward. The viewing angle of the person sitting on the seat 7 is secured so that the monitor 11 can be easily viewed (viewed).

Alternatively, when the distance between the monitor 11 and the person sitting on the rear seat 7 is narrowed by moving the front seat 1 backward as illustrated in FIG. 3, the present invention illustrated in FIGS. 6A to 6C. By operating the monitor angle variable device according to 30 so as to secure the viewing angle of the person sitting on the rear seat (7) so that the monitor 11 can be easily observed (viewing).

When the backrest 2 of the front seat 1 is flipped backward as illustrated in FIGS. 2 and 4, the monitor angle varying device 30 according to the invention illustrated in FIGS. 7 to 8c operates.

As shown in Figs. 2 and 4, the backrest 2 of the front seat 1 is gradually flipped backward, and at the point A (backrest and headrest deformation angle: 0) where the position of the headrest 3 is in the original state, If you move to point B (backrest and headrest deflection angle: 20) or point C (backrest and headrest deflection angle: 40), the monitor 11 may also have a predetermined angle depending on the position, that is, point A (monitor angle: 0). ) Should be changed from point B (monitor angle: 10) or point C (monitor angle: 20), so that the viewing angle (∠θ1) (∠θ2) of the person sitting on the rear seat 7 also changes. The monitor 11 can be viewed while maintaining the angle with (11) at substantially right angles.

The monitor angle variable device 30 according to the present invention operates as follows.

When the switch (not specifically shown) is turned ON to turn the backrest 2 of the front seat 1 backward, the seat-variable electric device mounted inside the hiprest 4 (specifically) If not shown) is the backrest rotation shaft (2-1) is to operate the start portion 31 while rotating in the forward direction.

When the first starting pulley 32 is rotated by the rotation of the backrest rotation shaft 2-1, and the first starting pulley 32 is rotated, the starting unit 31 is rotated by the revolution of the first belt 34. The first interlocking pulley 33 connected by the first belt 34 also rotates to rotate the intermediate connecting shaft 39.

The rotating unit 35 is also operated by the rotation of the intermediate connecting shaft 39, the second starting pulley 36 is rotated by the rotation of the intermediate connecting shaft 39, the rotation of the second starting pulley 36 As a result, the second belt 38 rotates while the second interlocking pulley 37 on which the second belt 38 is engaged is rotated.

When the second interlocking pulley 37 rotates, the angle adjusting unit 40 operates to adjust the angle of the monitor 11.

When the second interlocking pulley 37 rotates, the asymmetric cam 41 of the angle adjuster 40 connected to the axis of the second interlocking pulley 37 is illustrated in FIGS. 8B and 8C in a state as illustrated in FIG. 8A. As shown in the figure, it rotates clockwise.

When the asymmetric cam 41 rotates in the clockwise direction, the cam guide 42 rotates outward (exposure) while the cam monitor connecting shaft 44 moves upward along the cam guide 42, and the cam monitor connecting shaft 44 Cam monitor connecting shaft 44, which moves upward along the cam guide 42, moves upward along the guide hole 43-1 of the monitor rotation guide 43 mounted on the rear of the monitor 11. .

When the cam monitor connecting shaft 44 moves upward along the cam guide 42 of the asymmetric cam 41 and the guide hole 43-1 of the monitor rotation guide 43, the monitor 11 is the upper monitor shaft. The monitor 11 exposed to the outside of the headrest monitor case 12 while rotating relative to the headrest 15 is exposed to the outside of the headrest monitor case 12 by a predetermined angle according to the deformation angle of the backrest 2. Will be maintained.

On the other hand, according to the deformation angle of the backrest 2 as described above, when the backrest 2 is to be returned to its original state while the monitor 11 maintains the predetermined angle, the switch (not specifically shown) ) To the reverse (OFF).

When the switch (not specifically shown) is operated in the reverse direction (OFF), when the seat variable transmission device (not specifically shown) mounted inside the buttocks 4 operates in reverse, the backrest rotating shaft (2-1) Rotate in the reverse direction to operate the starter 31 in reverse, when the starter 31 is operated in reverse, the linkage 35 and the angle adjuster 40 also operates in reverse.

The angle adjuster 40 operates in the reverse order of the operation illustrated in FIGS. 8A to 8C.

When the asymmetric cam 41 rotates in the counterclockwise direction, the cam monitor 42 exposed to the outside rotates (ingresses) inward and the cam monitor connecting shaft 44 moves from the upper side to the lower side along the cam guide 42. The cam monitor connecting shaft 44 in which the cam monitor connecting shaft 44 moves downward along the cam guide 42 is a guide hole 43-1 of the monitor rotation guide 43 mounted at the rear of the monitor 11. Move from the top to the bottom along).

When the cam monitor connecting shaft 44 is moved from the upper side to the lower side along the cam guide 42 of the asymmetric cam 41 and the guide hole 43-1 of the monitor rotation guide 43, the monitor 11 is placed on the upper side. The monitor 11 that is inserted into the inside of the headrest monitor case 12 while being rotated with respect to the monitor shaft 15 and exposed to the outside of the headrest monitor case 12 is a headrest monitor case. It is maintained inside the state of (12) completely.

In addition, when the front seat 1 is gradually retracted to the points A, B, and C as illustrated in FIG. 3A, the monitor angle variable device illustrated in FIGS. 6A to 6C operates to operate the headrest monitor case ( Adjust the angle of 12).

As illustrated in FIG. 3A, when the front seat 1 is gradually retracted to a predetermined point (point A, point B, point C), when the headrest angle adjustment switch (not specifically shown) is operated (ON), The headrest 3 is variable as illustrated in FIG. 6C in the state of FIG. 6B, and at the same time the headrest monitor case 12 is also variable.

The headrest angle adjustment motor 21 is operated to rotate the start pulley 23 of the starter 20-1 together with the headrest rotation shaft 13, and when the start pulley 23 rotates, the belt 25 is connected to the belt 25. The interlock pulley 24 also rotates, and when the interlock pulley 24 rotates, the electric and angle adjusting unit 20-2 operates.

The rotation of the interlocking pulley 24 rotates the electric gear 27 of the electric and angle adjusting unit 20-2, and the interlocking gear 28 engaged by the rotation of the electric gear 27 rotates. When the gear 28 rotates, the headrest monitor case 12 is rotated as illustrated in FIG. 6C about the monitor case shaft 13 to rotate the headrest monitor case 12 as illustrated in FIG. 3C. The angle is changed.

On the other hand, when the headrest monitor case 12 is to be returned to its original state when the headrest monitor case 12 is changed at a predetermined angle as illustrated in FIG. 3C, the headrest angle adjusting switch (not specifically shown) is operated in reverse ( OFF).

The face headrest 3 is variable as illustrated in FIG. 6C in the state of FIG. 6B, and at the same time the headrest monitor case 12 is also variable.

When the headrest angle adjustment switch (not specifically shown) is reversed (OFF), the headrest angle adjustment motor 21 is operated in reverse, and the headrest rotation shaft 13 and the starter 20-1 are electrically operated together with the headrest rotation shaft 13. And reverse operation of the angle adjuster 20-2.

When the interlocking gear 28 of the electric and angle adjusting unit 20-2 is reversed by the reverse rotation of the interlocking pulley 24, the headrest monitor case 12 is shown in FIG. 6C based on the monitor case shaft 13. In the state as illustrated, the headrest monitor case 12 is completely retracted (returned) to the inside of the headrest 3 as illustrated in FIG. 6B.

As described above, the angle-adjustable headrest monitor 10 according to the present invention moves the position of the front seat 1 or varies the angle of the backrest 2 or the headrest 3 according to the monitor angle-variable device 20. 30 is operated to change the angle of the monitor 11 so that a person sitting on the rear seat 7 enters the field of view.

Although only specific embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various modifications and changes can be made within the scope of the present invention, and such modifications and variations are within the scope of the claims of the present invention. Belonging is natural.

1 is an exemplary view showing a state in which the monitor is installed on the front seat of the vehicle.

Figure 2 is an exemplary view showing a variable state of the adjustable headrest monitor according to the present invention installed on the front seat of the vehicle.

Figure 3 is an exemplary view showing a variable state of the angle-adjustable headrest monitor according to the present invention according to the forward and backward position of the front seat of the vehicle.

4 and 5 are exemplary views and graphs showing a state in which the angle-adjustable headrest monitor according to the present invention is variable according to the angle change of the front seat of the vehicle.

6a to 6c is an exemplary view showing the angle adjustable headrest monitor according to the present invention installed on the front seat of the vehicle and the operation relationship explanatory drawing.

Figures 7 and 8a to 8c is an exemplary view showing another embodiment of the angle-controlled headrest monitor according to the present invention installed on the front seat of the vehicle and the operation relationship diagram.

Explanation of symbols on the main parts of the drawings

1: front seat 3: headrest

10: Adjustable Headrest Monitor 11: Monitor

12: monitor case 20. 30: monitor angle variable

21: Motor for Headrest Angle Adjustment 20-1. 31: mobile unit

20-2: electric motor and angle adjuster 35: electric motor

40: angle adjuster

Claims (10)

In which the monitor case 12 is mounted inside the headrest 3 forming the front seat 1, and the monitor 11 is mounted inside the monitor case 12; A mandrel installed on the monitor case shaft 13 rotatably the monitor case 12 installed inside the headrest 3; A mandrel of the monitor 11 installed inside the monitor case 12 with the monitor shaft 15 rotatably; The monitor case shaft 13 or the monitor shaft 13 or monitor 11 installed in the mandrel to the monitor shaft 15 to be able to change the angle manually or automatically; angle formed, including Adjustable headrest monitor. The monitor case shaft (13) of claim 1, wherein the monitor case (12) is rotatably installed in the headrest (3). It is formed on the lower side of both sides of the monitor case 12; Adjustable angle headrest monitor characterized in that. The monitor shaft (15) of claim 1, wherein the monitor shaft (15) is installed inside the monitor case (12) in a rotatable manner.  It is formed on the upper side of both sides of the monitor (11); Adjustable angle head rest monitor. The method according to claim 1, wherein the monitor case 12 or the angle of the monitor 11; Automatically variable by the monitor angle variable device; Angle adjustable headrest monitor characterized in that. The apparatus according to claim 4, wherein the monitor angle varying device (20) for automatically varying the angle of the monitor case (12) or the monitor (11); A starter 20-1 that is driven by the power of the headrest 3 angle adjusting motor 21 and is electrically driven to the electric and angle adjusting unit 20-2; Electric and angle adjustment unit 20-2 for adjusting the angle by rotating the monitor case 12 installed in the mandrel to the monitor case shaft 13 while being driven by the power of the starter 20-1 in the forward and reverse directions; Adjustable angle headrest monitor, characterized in that formed by. The apparatus according to claim 4, wherein the monitor angle varying device (20) for automatically varying the angle of the monitor case (12) or the monitor (11); A starting part 20-1 which transmits electric power to the transmission part while starting by receiving the power of the backrest rotation shaft when the angle of the backrest 2 is deformed; An electric motor that transmits power to the angle adjusting unit 20-2 while being driven by the power of the starting unit 20-1; An angle adjusting unit 20-2 for adjusting the angle by rotating the monitor 11 installed in a mandrel with the monitor shaft 15 inside the headrest monitor case 12 by receiving the power of the electric motor. Adjustable angle headrest monitor, characterized in that. According to claim 5 or 6, The headrest angle adjustment motor 21 or the starting portion for receiving the power of the backrest shaft (2-1) for transmission and transmission to the electric and angle adjustment unit 40 or the transmission unit 35; The starting pulley or the first starting pulley 32 is attached to the headrest rotating shaft or the backrest rotating shaft 2-1, and the interlocking pulley or the first interlocking pulley 33 is attached to the intermediate connecting shaft 39, The belt or the first belt 34 to the interlocking pulley or the first starting pulley 32 and the first interlocking pulley 33, respectively; and the angle adjustable headrest monitor, characterized in that it comprises a formed. The method according to claim 5, Electric and angle adjusting unit 40 for adjusting the angle by rotating the monitor case 12 in the forward and reverse direction by the power of the starter 20-1; The electric gear 27 is mounted on the intermediate connecting shaft 39, the electric gear 27 is mounted on the monitor case shaft 13, and the electric gear 27 and the interlocking gear 28 are engaged with each other. Adjustable angle headrest monitor, characterized in that formed by. According to claim 6, The transmission unit 35 for transmitting power to the angle control unit 40 while being driven by the power of the starter 20-1; The second starting pulley 36 is mounted on the intermediate connecting shaft 39 on which the first interlocking pulley 33 is mounted, and the second interlocking pulley 37 is installed on the lower end of the monitor case 12 with a shaft. And a second belt (38) on the second driving pulley (36) and the second interlocking pulley (37). The method according to claim 6, The angle adjustment unit 20-2 for adjusting the angle by rotating the monitor 11 in the forward and reverse direction inside the headrest monitor case 12 by the power of the transmission unit 35; An asymmetric cam 41 having a cam guide 42 formed on one side thereof integrally mounted on a second interlocking pulley 37 installed in a shaft; A monitor rotation guide 43 having a guide hole 43-1 formed in a length at a rear surface of the monitor 11 having both upper ends mandrel with the monitor shaft 15; The cam guide 42 of the asymmetric cam 41 and the guide hole 43-1 of the monitor rotation guide 43 are inserted into the cam monitor connecting shaft 44 so as to be movable at the same time; Adjustable angle headrest monitor.

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