KR200215332Y1 - device for ascending and descending in display monitor - Google Patents

Abstract

The present invention supports the front and rear, the left and right of the support shaft in the surface contact state on the inside of the stand, the lower center of the support shaft is guided along the bottom center of the stand, and the support shaft moves up and down stably without shaking, The present invention relates to a lifting device for a flat panel display monitor that can reinforce an upward elastic bias and easily control the maximum lifting height of the support shaft, thereby simplifying the manufacturing and assembly process and preventing the monitor from flowing during the lifting operation. .

Description

Lifting device for flat panel display monitor {device for ascending and descending in display monitor}

The present invention relates to a flat panel display monitor, and more particularly, to a lifting device capable of freely adjusting the lifting height of a support shaft installed vertically on a base stand by supporting a monitor assembly.

As is well known, a display monitor is one of peripheral devices of a computer and various image media. In recent years, a flat panel display monitor employing a flat panel display element such as a thin film transistor liquid crystal display panel that can replace a monitor to which a cathode ray tube is applied has been widely proposed. It is used.

The display device applied to the flat panel display monitor has an advantage that the volume can be innovatively reduced as compared to the cathode ray tube, while the visual effect is remarkably degraded according to the viewing angle of the user.

Therefore, in configuring a flat panel display monitor, the height and inclination of the monitor main body and the like should be easily adjusted to suit the user's sitting height.

1 is a cross-sectional view of a conventional lift apparatus applied to the flat panel display monitor as described above.

In the conventional lifting device, the support shaft 12 is provided in a hollow portion of the stand shaft 11 vertically placed on the base 10 so that the support shaft 12 can be lifted and raised so as to elastically bias the support shaft 12 upward. The elastic body 13 is installed in the hollow part of 11).

The elastic body 13 is wound on the other end in a state in which one end is fixed to the upper end of the stand shaft 11 in the form of a coil to form a free end in roll shape, and the free end is provided on both sides to restrain the lower end of the support shaft 12. It consists of a pair of spiral springs.

In addition, the support shaft 12 is installed on the support shaft 12 and the stand shaft 11, respectively, to determine the upper and lower limits of the movement of the support shaft 12 with respect to the stand shaft 11. The first stopper 14 to determine the upper limit of the movement of the support shaft, and is installed on one of the stand shaft 11 and the base 10 and the support shaft ( The 2nd stopper 15 which determines the lower limit of the movement of 12 is comprised.

In addition, the cap member 16 which is a brake means on the upper edge portion of the stand shaft 11 so as to be in close contact between the stand shaft 11 and the support shaft 12 to generate a frictional resistance when the support shaft 12 is elevated. ) Is configured.

However, in the conventional lifting device configured as described above, the hollow stand is configured to be inclined in the form of a narrow upper portion and a lower lower portion, so that when the support shaft is vertically raised and lowered, the front and rear sides move and the monitor assembly (M) flows. There is a problem.

In addition, by biasing the support shaft upward depending on the pair of spiral springs, there is a defect that the lifting motion is not smooth and the stop position is not accurate even with the minute elastic force change of the spiral spring and the minute weight change of the monitor assembly.

In addition, first and second stoppers 14 and 15 are formed on the support shaft 12 and the stand shaft 11 to determine the upper and lower movement points of the support shaft 12. The cap member 16, which is a brake means, is formed at the upper edge of the stand shaft 11 so as to generate frictional resistance during lifting. As a result, the structure is complicated, so that the manufacturing and assembly processes are difficult and costly. When the member 16 is exposed to the outside and the support shaft 12 rises by the restoring force of a spiral spring, there exists a possibility that it may be forcibly separated by the elastic pressure.

The present invention has been made in view of the above-described conventional defects, and its purpose is to support the front and rear of the support shaft in a surface contact state on the inside of the stand, and the lower center of the support shaft is the bottom center of the stand. According to the lifting guide to provide a lifting device of the flat-panel display monitor that allows the support shaft to move up and down stably without shaking, and also to easily control the maximum height of the support shaft.

The present invention for achieving the above object is a support shaft which is supported by a stand vertically mounted on the base which is horizontally seated on the floor is configured to lift, the lifting device consisting of a pair of elastic body to elastically bias the support shaft upwards The guide rod is installed downward in the lower center of the support shaft for guiding the vertical lifting operation of the support shaft; A support member embedded in the stand to fix the upper end of the pair of elastic bodies, and supporting the front, rear and left and right sides of the support shaft in surface contact; An elastic member which is installed on the outer side of the guide rod and elastically biases the support shaft upward; A fixing member mounted at a lower end of the supporting member to fix the supporting member and guide the lifting of the guide rod; It is characterized in that the stopper is inserted into the lower guide rod penetrated by the center of the fixing member to control the maximum height of the support shaft.

1 is a cross-sectional view of a conventional lifting device

Figure 2 is a perspective view of the lifting device to which the present invention is applied

3 is an exploded perspective view of the present invention

4 is a cross-sectional view of the present invention,

a is the support shaft is raised,

b is a state where the support shaft is lowered.

<Explanation of symbols for main parts of the drawings>

20: base 21: stand

30: support shaft 33: guide rod

34: leaf spring 50: elastic body

60: support member 70: elastic member

80: fixing member 90: stop pin

Referring to the configuration of an embodiment of the present invention based on the accompanying drawings as follows. Figure 2 is a rear perspective view of the lifting device to which the present invention is applied, Figure 3 is an exploded perspective view of the present invention.

In the present invention, the base 20 is configured to be horizontally seated on a table, and a stand 21 having a predetermined height is installed vertically at the rear end of the base 20. In addition, the support shaft 30 is installed inside the stand 21 and is vertically elevated, and the support shaft 30 is mounted on the upper end of the support shaft 30 by attaching the monitor assembly M on the front of the X and Y axes. The connecting body 40 which enables angular rotation is comprised. In addition, the support shaft 30 is supported by the stand 21 to move up and down, is composed of a pair of elastic body 50 for elastically biasing the support shaft 30 upward.

In this lifting device, the subject innovation constitutes a guide rod 33 for guiding the vertical lifting operation of the support shaft 30 at the lower center of the support shaft 30, and fixes the upper end of the elastic body, the support shaft An elastic member configured to support the front, rear, left, and right sides of the support member 30 in a surface contact state, and is elastically biased on the guide rod 33 to elastically bias the support shaft 30 upwardly ( 70, the fixing member 80 for fixing the support member 60 and guiding the lifting of the guide rod 33, is inserted into the lower end of the guide rod 33 of the support shaft 30 It is made by configuring a stop pin 90 for controlling the maximum lift height, which will be described in more detail as follows.

The support shaft 30, the lower end is provided with a receiving groove 311 open to the front and lower to accommodate the free end of the elastic body 50, the inside is provided with a rectangular parallelepiped body 31, Leaf springs 34 are detachably provided at both centers of the body 31. The leaf spring 34 is intended to provide elasticity so as to be elastically in close contact with both inner walls of the support member 60 when the support shaft 30 is elevated. In addition, the reinforcing member 32 bent four sides of the metal plate is provided to reinforce the body 31, the reinforcing member 32 is inserted into the body 31 is forcibly molded.

The guide rod 33 penetrates the pin hole 331 in the horizontal direction at a lower end of a rod having a predetermined diameter. The guide rod 33 is inserted into the center of the receiving groove 311 of the support shaft 30 is fixed to the lower center of the reinforcing member 32 embedded in the body 31.

The support member 60 is a separate part injection-molded with a synthetic resin, the inner wall surface is formed up and down parallel to the rectangular box through which the upper and lower parts are penetrated, and the fixed end of the elastic body 50 in the rear side wall in a horizontal row Secure them side by side. The support member 60 is forcibly inserted to the top through the bottom of the stand 21.

The fixing member 80 is formed by pressing a metal plate to form a through hole 81 through which a guide rod 33 penetrates at an upper center thereof, and a fastening piece 82 is provided at both a lower front side and both sides thereof. The fixing member 80 is inserted into the lower part of the stand 21 and fastened to the bottom of the base 20 so that the fixing member 80 is tightly fixed to the lower part of the supporting member 60 embedded in the stand 21.

The elastic member 70 has a diameter through which the guide rod 33 can freely pass and employs a compression coil spring that can reinforce the force of the elastic body 50 fixed to the support member 60. The lower end of the member 70 is fixed to the through-hole 81 formed in the center of the fixing member (80).

When the stop pin 90 is inserted into the pin hole 331 of the guide rod 33 in the horizontal direction, the stop pin 90 is pulled out to a predetermined length and configured to function as a stopper.

Next, a process and an operation process of assembling the support shaft 30 configured as described above to the stand 21 will be described in detail.

First, the lower center of the support shaft 30 coincides with the opened upper center of the stand 21, and the guide rod 33 is inserted into the elastic member 70 installed in the center of the fixing member 80 and pressed downward. At this time, the elastic body 50 fixed in parallel to the rear wall of the support member 60 is accommodated in the receiving groove 311 formed in the lower front of the support shaft 30, the guide rod 33 while compressing the elastic member 70 The lower end passes through the through hole 81 of the fixing member 80 and is drawn out.

As such, when the lower end of the guide rod 33 is drawn out to the lower portion of the fixing member 80, the stop pin 90 is inserted into the pin hole 331. The stop pin 90 inserted into the pin hole 331 is caught by the bottom of the through hole 81 of the fixing member 80, so that the stop pin 90 does not rise any more due to the force acting by the elastic body 50 and the elastic member 70. It stops.

Subsequently, when the operation process of the present invention is shown, first, as shown in FIG. 4A, when the support shaft 30 is pulled upward, the pair of elastic bodies 50 which are maintained in balance with respect to the weight of the monitor (not shown) are supported. The elastic member 70 coalesced in the center of the shaft 30 is elastically biased upward to raise the support shaft 30. At this time, the leaf springs 34 formed on both sides of the body 31 of the support shaft 30 are elastically in close contact with both inner walls of the support member 60 so that they are raised without shaking, and the stop pin 90 is fixed to the fixing member 80. The moment it hits the bottom of the plane, it stops without rising anymore. This lifting operation is maintained by the balance of the elastic body 50 and the elastic member 70 in accordance with the weight of the monitor at the moment of releasing the pulling force at any position within the maximum lifting height range.

Meanwhile, as shown in FIG. 4B, when the support shaft 30 is pressed downward, the pair of elastic bodies 50 which are maintained in balance with the weight of the monitor are released, and the elastic member 70 is compressed and lowered. At this time, the leaf springs 34 formed on both sides of the body 31 of the support shaft 30 are elastically in close contact with both inner walls of the support member 60 so as to be lowered without shaking, and the lower end of the support shaft 30 is fixed to the fixed member ( The moment it comes into close contact with the upper surface of 80), it stops without lowering anymore. The lowering operation is maintained by the balance of the elastic member 50 and the elastic member 70 in accordance with the weight of the monitor at the moment of releasing the pressing force at any position within the lowest falling height range.

As described above, the present invention supports the front and rear of the support shaft, the left and right sides are supported in the surface contact state inside the stand, and the lower center of the support shaft is guided by the bottom center of the stand to move up and down stably without shaking the support shaft. In addition, by reinforcing upward elastic bias and easily controlling the maximum lift height of the support shaft, the manufacturing and assembly processes are simplified, and the advantages of preventing the monitor from flowing during the lifting operation are provided.

Claims (5)

A support shaft 30 which is supported by a stand 21 vertically mounted on the base 20 and lifts up is configured, and a flat plate type constituted by a pair of elastic bodies 50 which elastically bias the support shaft 30 upward. In the lifting device of the display monitor, A guide rod 33 installed downward in the lower center of the support shaft 30 to guide the vertical lifting operation of the support shaft 30; A support member (60) embedded in the stand (21) to fix the upper end of the pair of elastic bodies (50) and to support the front, rear, and left and right sides of the support shaft (30) in surface contact; An elastic member 70 which is installed on the outer side of the guide rod 33 and elastically biases the support shaft 30 upward; A fixing member (80) attached to the lower end of the supporting member (60) to fix the supporting member (60) and to guide the lifting and lowering of the guide rod (33); Lifting device of the flat panel display monitor, characterized in that the stop pin 90 is inserted into the lower end of the guide rod 33 penetrated into the center of the fixing member 80 to control the maximum height of the support shaft 30 . The support shaft 30 of claim 1, Formed in the lower and lower receiving grooves 311 open to the front and bottom to accommodate the free end of the elastic body 50, the inside is provided with a hollow body of the rectangular parallelepiped 31, the plate on both sides of the body 31 Spring 34 is detachably provided, the lifting device of the flat panel display monitor, characterized in that the reinforcing member (32) bent four sides of the metal plate is inserted into the body (31). The support member 60 of claim 1, Lifting device of the flat-panel display monitor, characterized in that the inner wall surface is formed up and down parallel to the upper and lower through the rectangular enclosure is inserted through the bottom of the stand 21 to the top. The elastic member 70 of claim 1, Lifting device of a flat panel display monitor, characterized in that consisting of a compression coil spring. The fixing member 80 of claim 1, A through hole 81 through which the guide rod 33 penetrates is formed in the upper center, and a fastening piece 82 is provided at both the lower front and both sides thereof and is inserted into the lower part of the stand 21, and fastened to the bottom of the base 20. Lifting device of the flat panel display monitor, characterized in that in close contact with the lower portion of the support member (60).