KR19990075222A - Monitor with automatic cam structure for angle adjustment - Google Patents

Abstract

The present invention can automatically adjust the screen angle of the display unit representing the video image according to the display signal transmitted along with the electrical energy from the monitor to the user visually easy to see visually and also to adjust the screen distance with the user A display unit, comprising: a display unit having a screen for displaying an image image according to a display signal transmitted along with electrical energy, and a stand unit supporting the display unit and having an inclined portion between the front protrusion and the rear narrow portion, and the display unit and the stand. A hinge member which is connected to the first and second hinges between the parts and rotates about a first hinge connected to the stand part for adjusting the screen angle, and controls the rotation of the hinge member and adjusts the display part angle to the motor and the gear. Cam is automatically adjusted by It will ensure that.

Description

Monitor with automatic cam structure for angle adjustment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor, and in particular, by a cam that automatically operates a screen angle of a display unit for displaying a video image according to a display signal transmitted along with electrical energy, the user can visually adjust the angle so that the user can visually see it. The goal is to provide a monitor with adjustable distance.

The monitor may be classified into a display unit for displaying an image image according to a display signal transmitted together with electrical energy, a stand unit serving to support the display unit, and a screen on the display unit, that is, a screen in which the image image appears. It is common to have a hinge portion that allows the angle to be adjusted to a position that is convenient for the user to view, and the role of the hinge portion in the monitor is to allow the user to easily displace the screen angle for convenience.

Therefore, the hinge part has a swivel motion function for rotating the display screen in left and right directions, and a tilt motion function for adjusting the screen angle in the front and rear directions. The hinge part of the prior art has a feature that the angle of the screen can be adjusted in the front, rear, left, and right directions, but should have a relatively complicated configuration, resulting in a cost increase, thereby lowering the internal and external competitiveness due to the increase in the product price. .

Further, the hinge portion of the monitor according to the prior art is not movable by itself, but is operated by moving the display portion by hand. Therefore, when the user moves the display unit with excessive force for adjusting the screen angle, the hinge part suddenly moves, thereby making it difficult to finely adjust the screen angle at a time and to adjust the screen angle over several times.

In the present invention, adjusting the screen angle by moving a display unit having a screen on which a video image appears as described above is called direct screen angle control, and indirect screen angle adjustment is performed by using other means than the display unit having a screen. In this regard, the prior art monitor is a direct screen angle adjustment method in which all of the display unit is moved by hand.

As such, the monitor having a direct screen angle control method has a complicated structure in addition to the disadvantages described above, resulting in a decrease in productivity and a problem in that the product size is relatively large.

Therefore, it raises the problem of limiting the supply of monitor products that are satisfied to consumers who prefer small size.

The present invention provides a monitor that can be automatically adjusted at the same time to be adjusted by an indirect screen angle adjustment method to adjust the display unit having a screen on which a video image appears to be displaced at a predetermined angle, thereby achieving finer screen angle adjustment and compactness. The goal is to get a monitor product.

In order to achieve the above object, the present invention comprises a hinge that can move with two hinges between a display unit on which a video image appears and a stand unit supporting the display unit, and the hinge unit automatically operates in the middle unit. The angle can be adjusted by the cam and the cam unit.

Accordingly, the present invention provides a monitor having a display unit for displaying an image image according to a display signal transmitted along with electrical energy and a stand unit for supporting the display unit, wherein the display unit and the stand unit are two first and second hinges. There is a hinge member connected to the hinge, characterized in that the monitor configured to have a cam for controlling the operation of the hinge member and automatically adjusts the display unit angle.

The cam is characterized in that it is configured to be rotated by a stationary motor driven by a cam switch and a cam unit operated by the stationary motor.

1 is an overall perspective view of a monitor according to the present invention,

Figure 2 is a perspective view showing the back and the representative parts of the monitor according to the present invention

Figure 3 is an exploded perspective view showing an embodiment of the cam and cam unit according to the present invention,

4 is an enlarged cross-sectional view taken along line AA ′ of FIG. 3;

5 is a cross-sectional view taken along line BB ′ of FIG. 4;

6A to 6B are views illustrating adjustment of the first screen angle of the monitor according to the present invention.

As a shave,

Figure 6a is a side view showing a forward operation state of the hinge member by the cam,

Figure 6b is a side view showing a reverse operation state of the hinge member by the cam,

Figure 6c is a side view showing an intermediate operation state of the hinge member by the cam,

7 is a side view showing a second screen angle adjustment of the monitor according to the present invention.

Explanation of symbols on the main parts of the drawings

10: display unit 11: the screen

20: stand portion 23: inclined portion

24: cam groove part 38: static motor

39: drive gear 40: hinge member

41,41 ': 1st, 2nd hinge 50: Cam

51: cam unit 53: shaft ball

54,54 ': Camshaft 54a: Cam gear

80: cam switch

The monitor according to the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1 shows a monitor perspective view of the present invention and Figure 2 shows an exploded perspective view thereof.

Referring to these drawings, the monitor includes a display unit 10 for displaying an image image according to a display signal transmitted along with electrical energy, and a stand unit 20 for supporting the display unit 10.

The display unit 10 is generally formed in a quadrangular shape, and the front surface forms a screen 11 representing a video image, and the screen 11 generally forms an LCD screen.

The stand portion 20 is formed so as to form a thick front surface to form a front buttocks 21, and the rear end forms a rear narrow portion 22 to form a thinner thickness than the front buttocks 21. In addition, the upper surface portion between the front oblique portion 21 and the rear narrow portion 22 is to form an inclined portion 23 in which the cam 50 is installed. The stand part 20 has such a shape so that the means for adjusting the display part 10 screen 11 is installed on the inclined part 23 so that the stand part 20 can be concealed backward when viewed from the front.

Therefore, the cam 50 serving as the screen angle adjusting means is installed to be rotatable in the cam groove 24 formed in the middle of the inclined portion 23 in the stand portion 20, and supports the cam 50. The cam unit 51 to be rotatable will be described later in more detail.

According to Figure 1, the front and both sides of the stand portion 20 is provided with a plurality of speaker holes 25, the front is provided with a speaker volume switch 26 for adjusting the speaker sound level. The speaker volume switch 26 is preferably a rotary switch. In addition, the speaker power input unit 27 and the speaker signal input unit 28 is provided on one side.

The speaker power input unit 27 is connected to the connector 29c of the power cable 29 having a power plug 29a and an adapter 28b connected to an external power source, and the speaker signal input unit 28 has a speaker signal. The jack 30a of the cable 30 is connected and used, and the speaker signal cable 30 is connected to a computer.

Referring to FIG. 2, the stand portion 20 includes a signal connection portion 31 at its rear end, to which a signal cable 32 connected from a computer is connected. The electrical energy and the display signal input from the signal connection unit 31 pass through the inside of the hinge member 40 connecting the display unit 10 and the stand unit 20 to the display unit 10. 33).

Hinge member 40 is formed to form a curved surface. The reason is that the hinge member 40 is operated by the cam 30 at the same time so that the display unit 10 connected to the upper end of the hinge member 40 can be positioned forward of the front end of the stand unit 20. This is to ensure easy operation when possible.

In addition, the hinge member 40 is connected to the display unit 10 and the stand unit 20 as two hinges, which are the first hinge 41 and the second hinge 41 ′, respectively. Hinges 41 and 41 'for this connection are formed by combining the hinge protrusion 41a and the groove 41b, or although not shown in the drawing, may constitute a hinge by an axis and use another hinge means. Can be configured.

Accordingly, the hinge member 40 may be rotated forward and backward about the first hinge 41 which is connected to the stand unit 20, and the hinge member 40 and the display unit 10 may be rotated. By the second hinge 41 ′ to allow the display unit 10 to be rotated forward and backward, an operation is possible.

Cam 50 is to be rotated in the inclined portion 23 of the stand portion 20, the cam unit for rotating the cam 50 will be described in more detail with reference to Figs.

Referring to FIG. 3, the cam unit 51 is configured to allow the cam 50 to rotate on the inclined portion 23 of the stand portion 20. That is, shaft holes 53 are formed at both sides of the cam groove portion 24 in the middle of the inclined portion 23 of the stand portion 20.

Cam shafts 54 and 54 'are inserted into the shaft holes 53, respectively, and are coupled together with the cam 50. As the projection 55 on one of the cam shafts 54 is fitted into the groove 50 in the cam 50 and the cam shaft 54 'on the other side, the cam 50 rotates as the cam shaft 54 rotates. Will be. In addition, the camshafts 54 and 54 'are adapted to be rotated by being coupled so that the hook 57 is caught by the hook locking groove 58.

This cam unit 51 represents one embodiment. That is, the cam member 50 can be rotated by the operation member 52 provided, and the cam 50 can be rotated by an operation of rotating the cam member. The cam unit can be implemented by other methods than those shown in the drawings.

3 to 5, a cam gear 54a is formed on the camshaft 54, and the cam gear 54a is driven by a forward and reverse motor 38 installed to be fixed to the bracket 37. ) Is engaged and interlocked.

In addition, the stationary motor 38 is controlled by the cam switch 80 provided on the stand 20. That is, referring to Figure 5, the cam switch 80 is to apply a signal to the control circuit 81, the forward and reverse motor 38 is the forward or reverse rotation and stop by the control circuit 81. .

The monitor of the present invention configured as described above can adjust the first and second screen angles. The first and second screen angle adjustments may be any of them first. However, this division is intended to help clearly distinguish and understand the explanation.

6A to 6B illustrate a first screen angle adjustment state of the monitor according to the present invention. The first screen angle adjustment is adjustment by the cam 50. That is, the cam 50 is rotated by the normal and reverse motor 38 which is rotated forward and backward by the operation of the cam switch 80 and the cam gear 54a rotated by the drive gear 39 driven by the cam shaft ( 54) 54 'is rotated, and then the cam 50 is rotated.

In the present invention, the cam 50 is in contact with the hinge member 40 only between the center of gravity (a) and the top dead center (b) of the cam 50 during rotation. That is, the rotation radius of the cam 50 is half rotation, and rotation is stopped because the protrusion part of the cam 50 contacts the bottom surface of the cam groove part 24.

6A shows a state in which the cam 50 is rotated clockwise so that the hinge member 40 is in contact with its center of gravity a. At this time, since the hinge member 40 is in contact with the low point (mid-center point) of the cam 50, the display unit 10 connected to the upper end of the hinge member 40 and the hinge 41 has a state of being lowered downward. .

In addition, the hinge member 40 may continuously rotate while the cam 50 is rotated about the first hinge 41, so that the second hinge 41 ′, which is the upper end of the hinge member 40, may be rotated. The hinge member 40 is always positioned by the weight of the display unit 10 because the display unit 10 which is located in front of the cam 50 and which is weighed is connected to the second hinge 41 ′. It becomes the state to apply force to (50).

Therefore, when the cam 50 rotates, the hinge member 40 is rotated about the first hinge 41 in a state of always contacting.

As a result, when the cam 50 is rotated in the clockwise direction, the display unit 10 is adjusted to the downward direction. In this state, the screen angle is adjusted downward. In addition, the display unit 10 is moved toward the front direction and the display unit 10 is made at the distance adjustment movement to be adjusted to a near state closer to the user.

FIG. 6B shows the top dead center b of the cam 50 in contact with the hinge member 40 as the operation member 52 is rotated counterclockwise. In this case, since the top dead center b of the cam 50, that is, the protruding portion of the cam 50 pushes the hinge member 41 in the rearward direction, the hinge member 40 centers around the first hinge 41. By rotating to the display unit 10 is raised in the upper direction. In addition, the display 10 is adjusted to be in a far-away state where the distance from the user is far.

FIG. 6C shows that the hinge member 40 is adjusted in contact with one point between the center of gravity (a) and the top dead center (b) of the cam 50. This state is maintained even in the adjusted state. This causes the cam shaft 54, 54 'on both sides of the cam 50 to be rotated in a tight state, for example, in the shaft hole 53 so that the cam 50 contacts the hinge member 40 between the center of gravity and the top dead center. Even if the weight of the display unit 10 is pressed by the cam 50 through the hinge member 40 in the adjusted state, the cam 50 does not rotate by itself unless the cam 50 is arbitrarily turned. It will be able to maintain the state.

Therefore, in adjusting the first screen angle by the cam 50, the angle adjustment for moving the screen 11 of the display unit 10 in the up and down directions can be performed. In addition, by adjusting the first screen angle, it is possible to appropriately adjust the front and rear distances between the user and the screen. In addition, in some cases, the cam 50 may be rotated by providing the operation member 52 on one side of the cam shaft 54 to rotate it. In this case, since the stationary motor 38 is in a no-load state, even if the cam 50 is manually rotated by the operation member 52, the stationary motor 38 is not disturbed.

FIG. 7 illustrates the second screen angle adjustment, in which case the display unit 10 is held by hand and rotated about the second hinge 41 ′. By adjusting the second screen angle as described above, a fine adjustment is made at the screen angle desired by the user.

According to the above description, the present invention provides a product that can be used by finely adjusting the screen angle desired by the user, and a convenient and new type of monitor product that can automatically adjust the screen angle by a cam that can be automatically operated. To provide.

In addition, the present invention can be used to adjust the screen angle and even the distance between the screen on which the video image appears and the user, thereby obtaining a monitor product with more functionality.

Claims (1)

A monitor having a display unit for displaying an image image according to a display signal transmitted along with electrical energy, and a stand unit for supporting the display unit, Between the display unit and the stand unit there is a hinge member connected to the two hinges of the first and second hinges, characterized in that the monitor is configured to have a cam for controlling the operation of the hinge member and automatically adjusts the angle of the display unit .