KR20000009083A - Height adjusting device of plate image display apparatus - Google Patents

Abstract

PURPOSE: A height adjusting device of a plane image display apparatus is provided to improve workability by adjusting a screen position to a user eye height. CONSTITUTION: The device comprises a screen, a slope and revolving adjuster, a supporter, and a bed. Images are displayed in the screen which is adjusted left and right by the slope and revolving adjuster coupled to the supporter which is fixed by the bed. An elevation pad moves up and down to adjust the screen to a user eye height, an adjusting rod adjusts up-and-down motion of the pad, a gear transfers driving force generated from a motor of the rod, and an up-and-down limit switch informs a user of limitation to height of the rod.

Description

Height adjustment device of flat panel display

The present invention improves the work efficiency by adjusting the position of the screen portion according to the user's eye level by providing a height adjusting means in the support portion for supporting the screen portion of the image display device and driving the motor by an electric means by the operation of the switch. It relates to a height adjusting device of a flat panel display device.

Conventional image display apparatus is composed of a screen unit for displaying an image, the tilt and rotation control unit for adjusting the screen portion in front, rear, left and right, a support unit for supporting the screen unit connected to the tilt and rotation control unit, and a support for fixing the support unit will be.

In the conventional video display device configured as described above, if the user wants to adjust the screen portion according to the user's eye level when the user performs the operation through the image display apparatus, the user can grab the edges of both sides of the screen portion and adjust the screen portion by the tilt and rotation controller. The front and rear left and right are adjusted to match the user's working position.

However, in the conventional video display device, when the user wants to perform the operation through the video display device, the screen part can be adjusted only to the front, rear, left and right sides by the tilt and rotation adjusting part when the screen part is adjusted to the desired position. There is a problem that the working efficiency is reduced because the user's eyes and neck are easily tired during a long time work does not match.

The present invention is to solve the conventional problems such as the user's eye level and the screen by the forward and reverse rotation of the motor by operating the switch after installing the height adjustment means for moving the screen portion up and down in the support for holding the screen portion fixed The configuration and operation effects of the present invention will be described with reference to the accompanying drawings in order to improve the work efficiency during the work through the image display device to facilitate the use of the image display device to match the position of the negative.

1 is a front view of a flat image display device having a height adjustment device of the present invention.

Figure 2 is a partial rear perspective view of a flat image display device having a height adjustment device of the present invention.

Figure 3 is a partial cross-sectional view showing the structure of the height adjustment device provided in the flat image display device of the present invention.

Figure 4 is a circuit diagram showing a power supply for converting the rotation direction of the motor to drive the height adjustment device of the present invention.

1 to 3, the height adjusting device of the present invention is a tilted and rotated screen for adjusting the position of the screen unit 1 and the screen unit 1 to the front and rear, left and right as shown in Figs. In the video display device consisting of a control unit 2, a support unit 3 connected to the tilt and rotation control unit 2 to support the screen unit 1, and a pedestal 4 to which the support unit 3 is fastened. , A lifting table 5 having a female threaded portion 5A formed at a predetermined portion to a lower inner side to be fastened inside the support 3 to move the screen 1 up and down, and the lifting platform 5 moved upwards. Stopper 5B protruding outward from the lower side of the platform 5 in order to limit the limit, and the shaking guide guide 6 formed on the upper side of the support part 3 in order to prevent the oscillation occurring when the platform 5 is in Shanghai. 6A and the male screw engaged with the female threaded portion 5A so that the platform 5 is moved to the shank and the height is adjusted. A control rod 7 having a 7A formed therein, a locking end 8 formed to fasten the gear unit 10 to the lower end of the adjustment bar 7, and a fixing plate protruding downward from the locking end 8. 11 is fixed to the fixed shaft (9), and the gear unit for transmitting power to drive the platform (5) and the adjusting rod (7) is installed inside the pedestal (4) for supporting the support (3) ( 10), the fixed plate 11 is fastened to the lower end of the pedestal 4 so that the gear unit 10 and the adjusting rod 7 is fastened and supported, and protrudes to the central portion of the fixed plate 11 adjustment rod (7) Bearing (11A) for fastening the fixed shaft (9) protruding to the bottom of the), boss (11B) protruding in the vicinity of the bearing (11A) to support the gear portion 10 and the bearing (11A) And a pedestal boss 4A protruding from the lower end of the pedestal 4 so that the fixing plate 11 from which the boss 11B protrudes is fastened to the lower end of the pedestal 4 by screws 12, and the adjusting rod 7 By the rotation of the platform The upper limit switch SW1 installed at the lower end of the swing prevention guide stage 6A which generates an alarm so that the upper side movement of the platform 5 is limited when moving downward, and the support part which generates an alarm so that the lower side movement of the platform 5 is restricted. (3) the lower limit switch SW2 provided in the lower side of the inside, the rib 13 protruding in the inner lower side of the support part 3 on which the lower limit switch SW2 is installed, and the lifting platform 5 move up and down. It consists of a motor 14 for operating the gear unit 10 for driving the adjusting rod 7

The gear unit 10 has a driving gear 10A rotating by the driving force of the motor 14 and a fixed plate 11 that meshes with the driving gear 10A to reduce the rotational speed of the driving gear 10A to increase driving force. Worm gear (10B) is fastened to the boss 11B protruding in the center of the) and formed integrally with the worm gear (10B) at the top to transfer the driving force of the worm gear (10B) to the second spur gear (10D). The first spur gear 10C to be transmitted, and the second spur gear 10D which is engaged with the first spur gear 10C to drive the adjustment rod 7 to rotate.

On the other hand, Figure 4 is a circuit diagram showing a power supply method for converting the rotation direction of the motor to drive the height adjustment device of the present invention, the rectifier 15 for rectifying the input AC power and the rectified by the rectifier 15 Condenser (C1) for smoothing the power, the forward switch SW11 and the reverse switch (SW12) for receiving the rectified smoothed power to rotate the motor 14 in the forward / reverse direction.

As illustrated in FIGS. 1 to 4, the operation and effect of the present invention configured as described above, first, according to the user's eye level when the user performs a desired operation while viewing the image displayed on the screen unit 1 of the image display device. In order to adjust the position of the screen unit 1 fastened to the tilt and rotation control unit 2, power is supplied to the motor 14 installed in the base 4 supporting the support unit 3 supporting the screen unit 1. By applying the motor 14 is operated to move the gear unit 10 connected to the motor 14, the lifting platform 5 connected to the control rod 7 installed in the support portion 3 is moved up and down to the desired height It is possible to adjust the display unit (1).

That is, the support part 3 supporting the screen part 1 is provided with a platform 5 for adjusting the height of the screen part 1, and the platform 5 for adjusting the height of the platform 5. The lower portion of the inner side (5A) formed in the inner threaded portion (5A) is engaged with the male screw portion (7A) formed on the adjusting rod (7) as the adjusting rod (7) is rotated, the lifting table (5) moves up and down, the adjusting rod (7) A locking plate 8 is formed at the lower end of the locking unit 8 to fasten the gear unit 10, and a fixed plate 9 protrudes below the locking end 8 so that the locking plate 8 is fixed to the lower side of the pedestal 4. It is fastened and fastened to the bearing 11A formed in (11).

And, the gear 10 is fastened and fixed to the adjusting rod 7 and the fixed plate 11 is connected to the motor 14, the control rod 10 is rotated by the driving force of the motor 14 when the power is applied to the control rod (7) is rotated to move the platform 5 so as to adjust the screen unit 1 to match the eye level of the user.

As such, when the user applies power to match the height of the screen unit 1 with the eye level of the user, the motor 14 is driven by the input power, and thus the polarity of the input power is changed so that the motor 14 Direction of rotation is changed in the forward / reverse direction.

At this time, the switch for adjusting the polarity of the power supplied to the motor 14 is used by installing the forward switch (SW11) and the reverse switch (SW12) in the appropriate portion of the pedestal (4) of the video display device or the keyboard of the computer It is possible to adjust by using the (not shown) button.

In other words, the computer keyboard can use the "+,-" button, the "Page up, Page down" button or the "↑, ↓" button.

Therefore, the power inputted through the rectifier 15 and the condenser C1 is supplied to the motor 14 to match the position of the screen 1 with the user's eye level while the user is performing the work through the screen 1. When the motor 14 operates the forward switch SW11 to be driven in the forward direction when applied, the motor 14 is rotated in the forward direction.

When the motor 14 rotates in the forward direction, the drive gear 10A in the gear portion 10 rotates by the forward driving force of the motor 14 to rotate the worm gear 10B engaged with the drive gear 10A.

Since the worm gear 10B has a larger outer diameter than the drive gear 10A, the worm gear 10B performs a role of reducing the rotational speed generated from the drive gear 10A and incorporates a greater rotational force on the upper portion of the worm gear 10B. Transfer to the first spur gear 10C formed.

Accordingly, while the first spur gear 10C rotates by the driving force of the motor 14, the second spur gear 10D meshing with the first spur gear 10C rotates and the second spur gear 10C rotates. The adjusting rod 7 fastened to the spur gear 10D is rotated, and the lifting table 5 is upward by the male screw portion 7A formed on the adjusting rod 7 as the adjusting rod 7 rotates. Will move.

That is, a female screw portion 5A is formed in the lower side of the platform 5 so that the male screw portion formed on the adjusting rod 7 when the adjusting rod 7 is rotated by the rotation of the second spur gear 10D. 7A) is rotated while being engaged with the female screw portion 5A formed on the platform 5, so that the platform 5 moves upwards, and when the platform 5 moves upwards, the platform 5 is moved upwards. Since the rocking prevention guide stage (6) (6A) is formed to move without swinging, the screen unit (1) fastened to the tilt and rotation control unit (2) is moved to the upper side in accordance with the eye level of the user.

At this time, when the adjusting rod 7 is circularly driven by the driving force of the gear unit 10, the lifting table 5 engaged with the adjusting rod 7 is converted into a vertical movement of the upper and lower screens, so that the screen unit 1 is moved upward. When the user pushes the forward switch SW11 for a long time so that the user can move the platform 5 upward to adjust the position of the screen unit 1, the stopper protruding from the lower side of the platform 5 is formed. 5B) comes into contact with the upper limit switch SW1 provided on the lower side of the swing preventing guide plate 6A formed inside the upper part of the support part 3, so that an alarm such as an unillustrated light emitting lamp or an alarm sound installed in the pedestal 4 is provided. The device is operated to inform the user that platform 5 is no longer moved upwards.

On the other hand, when the user wants to move the lifting platform 5 located on the upper side to move the position of the screen unit 1 downward, it is driven by the power output from the rectifying unit 15 by operating the reverse switch SW12. The motor 14 to be driven in the reverse direction.

Therefore, the motor 14 is driven in the reverse direction by the reverse switch SW12, so that the gear unit 10 rotates in the opposite direction to the forward direction, so that the adjusting rod 7 engaged with the gear unit 10 rotates in the reverse direction. It will be possible to adjust the height of the screen portion (1) to the lower side as the lifting bar (5) engaged with the adjustment bar (7) is moved to the lower side.

At this time, when the user continues to press the reverse switch SW12 continuously, the stopper 5B protruding from the lower side of the platform 5 is limited to the lower side provided in the rib 13 formed in the lower side of the support part 3. In contact with the switch (SW2), an alarm device such as an unillustrated light emitting lamp or an alarm sound installed in the pedestal 4 is operated to inform the user that the platform 5 is no longer moved downward. do.

Accordingly, the user can adjust the height of the screen unit 1 to match the eye height of the user by appropriately manipulating the forward switch SW11 and the reverse switch SW12 when performing various operations through the screen unit 1.

As described above, the present invention adjusts the forward switch and the reverse switch so that the height adjustment means can operate in the forward and reverse directions after installing the height adjustment means for moving the screen portion up and down in the support for holding the screen portion. By driving the motor in the forward or reverse direction, the height adjusting means connected to the screen adjusts the height of the screen to the upper or lower side, so that the user's eye level and the position of the screen is the same when the user performs the operation through the screen As the use of the image display device is convenient, work efficiency is improved, and fatigue is reduced according to the amount of work.

Claims (9)

In the flat-panel image display device comprising a screen unit on which an image is displayed, a tilt and rotation control unit for adjusting the screen unit front, rear, left and right, a support unit for supporting the screen unit connected to the tilt and rotation control unit, and a pedestal for fixing the support unit. When the work is performed through the image display device, it is installed in the support part so that the user's eye level can be matched with the lifting part that moves up and down to adjust the height of the screen part. Adjusting rods for adjusting the Shanghai East of the platform Gear portion for transmitting the driving force generated from the motor to the adjusting rod Height adjustment device of the flat image display device, characterized in that the upper and lower limit switch configured to inform the user that the upper and lower height adjustment is no longer when the adjustment rod is moved up and down by the rotational force of the gear unit. The height adjusting apparatus of claim 1, wherein the adjusting rod and the lifting table are engaged with each other by the female screw portion and the male screw portion to convert the rotational movement into linear movement. The height adjusting apparatus of claim 1, wherein the driving force generated from the motor is transmitted to the adjusting rod and the lifting platform through the gear unit to adjust the height of the screen unit. The height adjusting device of the flat panel display device according to claim 1, wherein the platform is changed to a linear motion by the rotational force of the adjusting rod so that a rocking prevention guide end is formed on the upper portion of the support to prevent the platform from swinging up and down. The flat panel image display of claim 1, wherein when the stopper formed on the lower side of the platform is in contact with the upper and lower limit switches, the user can inform the user through a light emitting lamp or an alarm sound that the upper and lower control of the platform is no longer controlled. Height adjustment device. According to claim 1, wherein the gear portion is driven by the driving force generated by the motor, the worm gear meshed with the drive gear for increasing the driving force while reducing the rotational speed of the drive gear, and the rotational force of the worm gear to the adjustment rod A height adjusting device for a flat panel display device, characterized in that the first and second spur gears for transmitting an appropriate rotational speed and driving force. 6. The flatbed image according to claim 1 or 5, wherein the upper limit switch is installed on the lower side of the anti-slip guide end formed on the upper part of the support part, and the lower limit switch is installed on the upper part of the rib part formed on the lower part of the support part. Height adjustment device of indicator. The worm gear according to claim 6, wherein the worm gear meshed with the drive gear has a larger diameter (outer diameter) than the drive gear, and the worm gear is formed integrally with the first spur gear, but the diameter of the worm gear is smaller than the first spur gear. And a second spur gear that rotates in engagement with the first spur gear has a diameter larger than that of the first spur gear. 2. The flat panel image display apparatus according to claim 1, wherein the power supplied to the motor is changed to the forward / reverse direction by the operation of the forward / reverse switch by direct current so that the height adjustment of the platform is converted to the upper direction or the lower direction. Height adjuster.