KR100215981B1 - A swivel apparatus of monitor for control of screen tilt angle - Google Patents

Abstract

The present invention relates to a monitor screen tilt angle adjusting device of a table PC in which the table and the PC are integrally formed.

The monitor screen tilt angle adjusting device is parallel to the hinge shaft 19 and the hinge shaft 19 for supporting one end of the monitor case 13 to accommodate the monitor 11 and one end of the monitor case 13 in a rotational reciprocating manner. The operating shaft 23 to be installed, the forward rotation to increase the screen angle of the monitor 11, the reverse rotation to the drive cam 14 to reduce the screen angle of the monitor 11, serration 24 formed in the shape of a serration (24) , A stopper 25 engaged with the serration 24, a solenoid 18 providing an actuation force, a servomotor 15 providing a rotational force to the actuation shaft 23, a pinion gear 16 for transmitting power, and a driven member. The first limit switch 21 and the second which generate signals by detecting contact with the gear 17 and the first tip portion 14a and the second tip portion 14b of the drive cam 14, respectively, and detect the rotation state thereof. The limit switch 22 is comprised.

Accordingly, by adjusting the screen angle of the monitor according to the user's physical condition in the wall-mounted or desk-type PC, it is effective to meet the PC environment of the future and improve the convenience of the PC.

Description

Monitor screen tilt angle adjuster

The drawings show an embodiment of the present invention.

1 is a perspective view showing a partially cut and disassembled table-type PC,

2 is a perspective view showing a driving means applied to FIG.

3 is an exemplary view showing a state before and after each operation in FIG.

4 is a block diagram illustrating input / output wiring for the control of FIG. 2;

5 is a flowchart showing an operation procedure.

Explanation of symbols for the main parts of the drawings

1: table 2: drawer

3: transparent glass plate 10: main body

11: monitor 12: keyboard

13: monitor case 14: drive cam

14a: first tip 14b: second tip

15: servomotor 16: pinion gear

17: driven gear 18: solenoid

19: hinge shaft 21: first limit switch

22: second limit switch 23: operating shaft

24: Serration 25: Stopper

ST1 to ST14: Operation status

The present invention relates to a table-type PC, and in particular, by using a step device control function of the table-type PC integrally formed with the table and the PC and driving a predetermined monitor rotating device to adjust the monitor to an angle that is convenient for the user to see. It relates to a monitor screen tilt angle adjusting device of a table PC.

In general, a PC includes a main body having various functional boards using a microprocessor, a keyboard and a mouse connected to an input port of the main body, a monitor connected to an output port of the main body, and the like.

Since these PCs are installed on a work desk or installed using a separate desk, a relatively large amount of space is required, and an installation method of maximizing space utilization is required as the device PC is developed into an environment where daily necessities become essential.

In recent years, as a wall-mounted TV has emerged, a PC monitor can be installed using a wall surface or housed inside a desk, so that a PC environment for maximizing space utilization can be generalized.

While such a wall-mounted or desk-type PC has the advantage of narrowing the space as described above, it is difficult to change the monitor to an appropriate position according to the viewing angle of the user due to the narrow and closed structure.

[Technical problem to be achieved]

The present invention provides a monitor screen tilt angle adjusting device of a table-type PC that adjusts the screen angle of the monitor according to the user's physical condition in a PC of a hanger type or a desk storage type corresponding to the future PC usage environment in the future. The purpose.

At this time, the screen position is adjusted to an arbitrary angular range by operating a predetermined key, and the main body of the PC and the keyboard which is an input device are used as the control means.

In order to achieve the above object, the present invention provides a table-type PC having a main body, a monitor, a keyboard, and the like installed inside a table on which a drawer and a transparent glass plate are installed on a front surface and a top surface, respectively: Monitor case; A hinge shaft installed inside the table to support one end of the monitor case in a reciprocating manner; An operating shaft installed in parallel with the hinge axis from the inside of the table to the rear lower end of the monitor case; It is fixed on the operating shaft and has a predetermined outer peripheral surface and rotates forward while the first key on the keyboard is pressed to increase the screen angle of the monitor, and rotates backward while the second key on the keyboard is pressed to display the screen angle of the monitor. Drive cam to reduce the; A serration formed in a sawtooth shape in addition to a portion of an outer circumferential surface of the drive cam; A stopper which is linearly reciprocated to engage the serration during the forward movement; A solenoid connected to the stopper to provide an operating force; A servo motor rotating in a forward and reverse direction to provide a rotational force to the operating shaft; A pinion gear and a driven gear transferring power between the servo motor and the operating shaft; The first limit switch and the second limit are installed in the vicinity of the drive cam of the monitor case and generate signals by contacting the first and second ends, which are two rotation points of the drive cam, respectively. It provides a monitor screen tilt angle adjustment device characterized in that it comprises a switch.

EXAMPLE

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a perspective view showing the table PC partially cut and disassembled.

Among the above-described wall-mounted or desk-type PCs, the case of the latter case is described. The monitor screen tilt angle adjusting device of the table PC of the present invention includes a main body 10, a monitor 11, a keyboard ( 12), a table (1), a monitor case (13), driving means and the like are provided.

The table 1 is provided with a drawer 2 and a transparent glass plate 3 on the front and top surfaces, respectively. The main body 10 and the monitor 11 are provided in the inside of the table 1, and the keyboard 12 is provided in the drawer 2. As shown in FIG. The transparent glass plate 3 improves the visibility to the monitor 11 by using a coated treatment to block light reflection.

The monitor 11 is installed inside the monitor case 13 capable of rotating reciprocating movement around the hinge shaft 19. The monitor case 13 has a box shape for receiving the monitor 11 removably, and has a lower end fixed to the table 1 with a hinge shaft 19.

In addition, the monitor case 13 has a groove in the same shape as the contour curve of the drive cam 14 to be in sliding contact with the drive cam 14 installed on the operating shaft (23). These grooves are formed at least one side on both sides of the monitor case (13).

At this time, the hinge shaft 19 is formed on a position where the center of gravity of the monitor 11 and the monitor case 13 as a whole is not spaced apart much on the line acting vertically downward to act on the operating shaft 23 It is desirable to optimize the torque.

In the vicinity of the drive cam 14, a first limit switch 21 and a second limit switch 22 for detecting the rotated two positions are installed to recognize the rotation state of the operating shaft 23.

2 is a perspective view showing the driving means applied to FIG.

The present invention fixes the drive cam 14 and the wave gear 17 to the operating shaft 23, the drive means is connected to the wave gear 17, the stop means is connected to the drive cam (14). The driving means is composed of a wave gear 17, a pinion gear 16, a servo motor 15 and the like, and the stop means is composed of a solenoid 18, a serration 24, a stopper 25 and the like.

The drive cam 14 forms the hinge shaft 19 with a width sufficient to move the rear end of the monitor case 13 (Fig. 1) to the center of rotation. As shown in the figure, it may have one cylinder structure or may be formed by dividing it into two places.

The present invention uses the servo motor 15 controlled by forward and reverse rotation as a power source, because the output port and the circuit configuration on the main body 10 (Fig. 1) of the PC is easy and the low speed and high load performance is excellent.

The serration 24 mounted on a part of the outer circumferential surface of the drive cam 14 may be formed in a sawtooth shape and may be engaged with the stopper 25 linearly reciprocated by the solenoid 18.

That is, when the solenoid 18 is off, the stopper 25 is engaged with the serration 24 so that the drive cam 14 is stopped. When the solenoid 18 is turned on, the stopper 25 is serration 24. Spaced apart from the do not restrain the rotation of the drive cam (14).

Since the stop means using the serration 24 and the stopper 25 has a reverse flow stop function of the drive cam 14, it is possible to prevent the monitor 11 from descending to its own weight when the servomotor 15 is not operated. You can prevent it.

One side of the driving cam 14 is mounted to protrude toward the side of the monitor case 13 to be in contact with the first limit switch 21 or the second limit switch 22 mounted on the side of the monitor case 13. .

3 is an exemplary diagram showing a state before and after the operation of FIG. 2, respectively.

The first limit switch 21 and the second limit switch 22 are installed on the monitor case 13 (FIG. 1), and the first tip portion 14a or the second tip portion, which are two rotation points of the drive cam 14, is provided. Each contact is made at 14b to generate a signal.

As shown in the left figure, when the first tip portion 14a contacts the first limit switch 21, the first limit switch 21 forms a high signal, and the second tip portion 14b is the second limit switch as shown in the right figure. In contact with 22, the second limit switch 22 forms a high signal.

At this time, the formation positions of the first tip portion 14a and the second tip portion 14b are about 90 degrees.

Claims (1)

(Single crystal) Table type in which the main body 10, the monitor 11, the keyboard 12, etc. are built in the inside of the table 1 in which the drawer 2 and the transparent glass plate 3 are installed on the front and upper surfaces, respectively. For a PC: A monitor case 13 installed inside the table 1 to accommodate the monitor 11; A hinge shaft 19 installed inside the table 1 to support one end of the monitor case 13 in a reciprocating manner; An operating shaft (23) installed in parallel with the hinge shaft (19) to the rear lower end of the monitor case (13) inside the table (1); While fixed on the operating shaft 23 and having an outer circumferential surface of a predetermined shape, the motor rotates forward while the first key on the keyboard 12 is pressed to increase the screen angle of the monitor 11, and the second on the keyboard 12. A drive cam 14 which rotates in reverse while the key is pressed to reduce the screen angle of the monitor 11; A serration 24 mounted to a part of an outer circumferential surface of the driving cam 14 and formed in a sawtooth shape; A stopper 25 linearly reciprocating to engage the serration 24 during the forward movement; A solenoid 18 connected to the stopper 25 to provide an actuation force; A servo motor 15 which is rotated forward and backward to provide a rotational force to the operating shaft 23; A pinion gear 16 and a driven gear 17 for transmitting power between the servo motor 15 and the operating shaft 23; And It is installed in the vicinity of the drive cam 14 of the monitor case 13 and generates a signal by contacting the first tip portion 14a and the second tip portion 14b, which are two rotation points of the drive cam 14, respectively. And a first limit switch (21) and a second limit switch (22) for detecting a rotation state.