KR200240968Y1 - LCD monitor stand device - Google Patents

Abstract

A support shaft for supporting the liquid crystal monitor assembly is installed to be elastically biased by a coil spring provided in the hollow of the stand shaft of the stand base, and a stopper member formed of a resin molding is provided on both sides of the outer wall of the support shaft. By installing a leaf spring between the outer wall of the support shaft, the stopper member is in close contact with the inner wall of the stand shaft to generate a frictional force by the friction action between the support shaft, while allowing the lifting shaft movement of the support shaft relative to the stand shaft And a resilient force of the coil spring to act as a stopping means having a resistance to restrain the force restraining the support shaft so that the height of the liquid crystal monitor assembly can be freely adjusted between predetermined lifting sections.

Description

LCD monitor stand device

The present invention relates to, for example, a liquid crystal monitor used as an image display device such as a computer monitor, and more particularly, to a stand apparatus that can freely adjust the height of the screen by supporting the liquid crystal monitor in a liftable state. will be.

Recently, a liquid crystal display (LCD), which is used as a flat image display device for displaying image information such as a character or a figure, has a lower power consumption type and can be driven by a lower voltage than a conventional monitor device using a cathode ray tube. And it is mainly applied to the monitor device for the computer, such as notebook PC due to the advantage that it can be reduced in weight. As such liquid crystal monitors become larger in size, a large amount of information can be displayed on a single screen, and thus the application range of the LCD monitor is gradually expanded to wall-mounted TVs.

Figure 1 is a typical of the liquid crystal monitor as described above, and schematically shows the appearance of a computer liquid crystal monitor. Referring to FIG. 1, a conventional liquid crystal monitor device is installed such that a liquid crystal panel 11 displaying image information is accommodated in an exterior case 12, and the exterior case 12 is placed on a table or desk. Losing is supported by the stand 13.

In general, the outer case 12 is installed in a state in which a rotational movement (swivel) is possible with respect to the stand 13 and its vertical center axis line, and at the same time, the rotational movement (tilt) is possible around the horizontal center axis line. Installed in a state. Therefore, the viewing angle of the liquid crystal panel 11 forming the screen can be adjusted in various directions by the rotational movement and the rotational movement of the outer case 12.

However, since the height of the exterior case 12 is initially set with respect to the stand 13, adjustment of the height of the screen of the liquid crystal panel 11 is fundamentally impossible according to the physical condition or environment of the user. There is a problem.

Therefore, the technical problem to be achieved by the present invention was devised to improve the problem in view of the problems of the stand-up device of the conventional liquid crystal monitor as described above, and the screen height of the liquid crystal monitor can be easily and freely adjusted by a simplified configuration. It is an object of the present invention to provide a stand apparatus of a liquid crystal monitor.

Figure 1 is a schematic perspective view showing a typical of the conventional liquid crystal monitor stand device,

2 is a schematic perspective view of a liquid crystal monitor stand device according to the present invention,

3 is an exploded perspective view of main parts of the liquid crystal monitor stand device according to the present invention;

4 is a main portion coupling cross-sectional view of the liquid crystal monitor stand device according to the present invention,

5A and 5B are schematic structural views illustrating the operation state of the LCD monitor stand apparatus according to the present invention, and FIG. 6 is a cross-sectional view of the support plate of the LCD monitor stand apparatus according to the present invention cut in a horizontal direction.

<Description of Symbols for Major Parts of Drawings>

100 ... LCD monitor assembly 110 ... Support shaft

111 ... Support 112 ... Guide groove

120 ... stopper member 130 ... plate spring

200 ... stand base 210 ... stand shaft

211.Shaft 212 ... Coil Spring

213 ... stopper pin 214 ... support plate

In order to achieve the above object, a stand apparatus of a liquid crystal monitor according to the present invention includes a stand base having a hollow stand shaft, a support shaft supporting the liquid crystal monitor assembly to be liftable and coupled to a hollow portion of the stand shaft, A stand-up device of a liquid crystal monitor comprising: elevating means for supporting the support shaft with respect to the stand shaft so that the height of the liquid crystal monitor assembly can be freely adjusted between a lift section having a predetermined upper limit point and a lower limit point. The elevating means includes at least one first elastic body installed in the hollow portion of the stand shaft and elastically biases the support shaft in one direction, and permits a lifting movement of the support shaft with respect to the stand shaft, and simultaneously with the elastic force of the first elastic body. Phase to have a resistance to prevent movement of the support shaft by It is characterized in that it comprises a stopper means installed on the outer wall of the support shaft for generating a frictional force by friction action with the inner wall of the stand shaft.

According to the present invention, the elastic force T1 of the first elastic body at the upper limit of the lifting section of the liquid crystal monitor and its support shaft and the lifting section of the liquid crystal monitor and the first elastic body at the lower limit of the lifting section of the liquid crystal monitor. The relationship between the elastic force T2 and the frictional resistance F of the stopping means is preferably designed to satisfy the following equations (1) and (2).

In the stand apparatus of the liquid crystal monitor according to the present invention, the first elastic body is preferably provided with a coil spring so as to be guided by a shaft installed upright in the hollow portion of the stand shaft. At least one stopper member coupled to the outer wall of the support shaft, and a second elastic body elastically biased between the outer wall of the support shaft and the stopper member to be in close contact with the inner wall of the hollow part of the stand shaft to enable frictional movement. It is preferred to be configured.

In addition, the stopper member is made of a resin molding body formed so that at least one surface of the whole surface contact with the inner wall of the hollow portion of the stand shaft, the second elastic body is symmetrical to press the both ends of the stopper member in an equal state It is preferably made of a leaf spring molded into.

On the other hand, the stand shaft is provided with a stopper pin, the tip end of the stopper pin is inserted into the guide groove formed in the longitudinal direction in the support shaft, the stopper pin is the upper end and the lower end of the guide groove during the lifting movement of the support shaft It is preferable to be configured to determine the lifting section of the support shaft by restraining.

Hereinafter, with reference to the accompanying drawings will be described in detail the stand apparatus of the liquid crystal monitor according to an embodiment of the present invention.

2, the stand of the liquid crystal monitor according to the present invention is a hollow stand installed in a state in which the support shaft 110 for supporting the liquid crystal monitor assembly 100 upright to the stand base 200 as shown It is characterized in that it is coupled to the liftable state to the shaft 210 is configured to freely adjust the height of the liquid crystal monitor assembly 100 by moving freely between the lifting section having a predetermined upper and lower limits. Here, reference numeral h in the drawings is a hinge axis for coupling the monitor assembly 100 and the support shaft 110 in a rotatable state, s is a limit of the rotation angle of the liquid crystal monitor assembly 100. It represents a shaft groove to which a stopper shaft (not shown) for coupling.

3 and 4 are taken as an excerpt of the configuration of the main features that characterize the subject innovation, a schematic separation perspective view and coupling of the lifting means for allowing the lifting movement of the support shaft 110 with respect to the stand shaft 210, respectively; It is a cross section.

3 and 4, the lifting means is coupled to surround the outer circumferential surface of the pair of shafts 211 installed in the upright state of the stand shaft 210 as shown, respectively, as shown A pair of coil springs 212 which elastically bias the support shaft 110 upwardly, a stopper member 120 provided on both sides of an outer wall of the support shaft 110, and the stopper member 120 on the stand shaft. Including a leaf spring 130 is installed between the outer wall of the support shaft 110 and the stopper member 120 to generate a friction force by the friction action between the elastic bias so as to be in close contact with the inner wall of the (210). It is composed.

In the above configuration, it is preferable that the stopper member 120 is made of an injection molded resin molding so that at least one surface thereof may be in surface contact with the inner wall of the stand shaft 210. In addition, the leaf spring 130 is preferably formed in a symmetrical structure so that both ends are constrained and accommodated by both ends of the stopper member 120 to have an elastic force. The leaf spring 130 having such a structure is elastically biased such that the entire surface of the stand shaft 210 may be closely adhered to the inner wall of the stand shaft 210 by pressing down both ends of the stopper member evenly. Reference numeral 111 in the drawing is a support piece formed in the support shaft 110 to restrain the coil spring 212, the through portion is formed in the center portion as shown in the lifting movement of the support shaft 100 The coil spring 212 is constrained to prevent separation and to allow penetration of the shaft 211. Reference numeral 213 denotes a stopper pin, which is coupled to the coupling hole 214a of the support plate 214 installed on the stand shaft 210. As shown in Figure 6, the stopper pin 213 is installed to be inserted into the guide groove 112 formed in the support shaft 110 of the guide groove 112 during the lifting movement of the support shaft 110 By restraining the upper end and the lower end serves as a stopper for limiting the lifting distance of the support shaft 110. Therefore, the lifting movement section of the support shaft 110 can be set in various forms by adjusting the length of the guide groove 112 according to the model or size of the liquid crystal monitor assembly. In the state in which the support shaft 110 is fitted to the stand shaft 210, the support plate 214 is supported so that the lifting movement of the support shaft 110 is not disturbed by the support plate 214, as shown in FIG. 6. It faces the shaft (110). The support shaft 110 and the support plate 214 may be designed to be in sliding contact with each other or to face each other with a slight gap. According to the lifting means having the above-described configuration, the support shaft 110 has an external force. As a result, the lifting movement can be performed with respect to the stand shaft 210. That is, in the state in which an external force applied to the liquid crystal monitor assembly 100, in particular, an external force applied upward from below (PUSH) or downward from above (PULL) is actuated by the leaf spring 130, the stand shaft ( Since the adhesion of the stopper member 120 to the inner wall of the 210 is lowered, the lifting motion of the support shaft 110 is allowed.

On the other hand, in the state in which the external force applied to the liquid crystal monitor assembly 100 is released, the leaf spring 130 is the adhesion of the stopper member 120 to the inner wall of the stand shaft 210 by the elastic force, so For example, when the support shaft 110 is biased upward by the elastic force of the coil spring 212, the stopper member 120 generates frictional resistance with the inner wall of the stand shaft 210 to support the support shaft 110. It acts as a stopper to prevent the movement of).

5A and 5B are schematic configuration diagrams for explaining an operation state of each component constituting the lifting means of the LCD monitor stand apparatus according to the present invention. Referring to this, the LCD monitor assembly 100 and The self-weight W of the support shaft 110 and the total elastic force T1 and the lower limit X2 of the pair of coil springs 212 at the upper limit X1 of the lifting section X of the liquid crystal monitor assembly 100. The sum total of the elastic force T2 of the pair of coil springs 212 and the pair of stopper members 120 are in contact with the left and right inner walls of the stand shaft 210, respectively. The relationship of is preferably designed to satisfy the following equations (1) and (2).

[Equation 1]

[Equation 2]

5A and 5B, the operation state of the liquid crystal monitor stand device according to the present invention satisfies Equation 1 and Equation 2 will be described in detail below. For example, when the size of the liquid crystal monitor is 15 inches, the weight W of the liquid crystal monitor assembly 100 and the support shaft 110 is 5 kg, and the lifting section X of the liquid crystal monitor assembly 100 is The total elastic force T1 of the pair of coil springs 212 acts as a force of 4 Kg at the upper limit point X1, the total elastic force T2 of the pair of coil springs 212 acts as a force of 6 Kg at the lower limit point X2, and the pair Assuming that the frictional resistances F1 and F2 of the stopper members 120 and 120 are 1 Kg each, and the total F acts as a force of 2 Kg, each component is adjusted when the screen height of the LCD monitor stand device according to the present invention is adjusted. The actions on the elements are as follows.

When the liquid crystal monitor assembly 100 is located at the upper limit X1 of the lifting section X, the total elastic force T1 of the pair of coil springs 212 acts as a force of 4 Kg to operate the liquid crystal monitor assembly 100. The liquid crystal monitor assembly 100 has a self-weight (W) of 5 Kg, so that the force to lower the coil spring 212 by the self-weight acts.

However, since the frictional resistance of the pair of stopper members 120 and 120 acts as a force of 1 Kg each, a total force of 2 Kg F acts on the left and right inner walls of the stand shaft 210 to allow the liquid crystal monitor assembly 100 to operate. Will stop the descent. Thus, the liquid crystal monitor assembly 100 is placed in a static state by the balance of the force at the position unless a separate external force is applied.

In addition, when the liquid crystal monitor assembly 100 is located at the lower limit X2 of the lifting section X, the pair of coil springs 212 are compressed to the maximum, and the total elastic force T1 acts as the maximum force of 6 Kg. The liquid crystal monitor assembly 100 can support the liquid crystal monitor assembly 100. The liquid crystal monitor assembly 100 has a weight of 5Kg, so the elastic force of the coil spring 212 lifts the liquid crystal monitor assembly 100. It acts as a force to make.

However, the frictional resistance of the pair of stopper members 120 and 120 is 1 Kg, respectively, and a total force of 2 Kg F acts on the left and right inner walls of the stand shaft 210 to raise and lower the liquid crystal monitor assembly 100. Will be blocked. Thus, the liquid crystal monitor assembly 100 is placed in a static state due to the balance of forces at the position unless a separate external force is applied.

According to the operation as described above, even if the liquid crystal monitor assembly 100 is placed at any position between the upper limit X1 and the lower limit X2 of the lifting section X, the weight of the liquid crystal monitor assembly 100 W and a value between the sum of the elastic forces T1 to T2 according to the deformation state of the coil spring 212 in the lifting section X, and the sum F of the frictional resistance forces F1 and F2 of each stopper member 120 are mutually different. The forces are balanced so that they can be placed static in that position. At this time, even if a small external force is applied, the balance of the force may be broken, so that the user actually applies a slight external force upward and downward in order to adjust the height of the liquid crystal monitor assembly 110. It can be adjusted easily by pushing (PUSH) or vice versa (FULL). In addition, the lifting distance actually moved when the height of the liquid crystal monitor assembly 100 is adjusted may be freely adjusted by the amount of external force applied.

As described above, according to the stand apparatus of the liquid crystal monitor according to the present invention, the user may push the liquid crystal monitor assembly 110 upward or downward (PUSH) or vice versa in order to adjust the height of the screen ( FULL) is applied to a light external force to be placed at a desired height, and then remove the external force, the liquid crystal monitor assembly 100 can be placed in a stable state by the balance of power at that position.

According to the present invention, it is possible to provide a stand-alone device of a liquid crystal monitor which can easily and freely adjust the screen height of a liquid crystal monitor by a so-called push or pull method.

Claims (7)

A stand base having a hollow stand shaft, a support shaft supporting the liquid crystal monitor assembly so as to be lifted and coupled to a hollow portion of the stand shaft, and a lifting section having a predetermined upper and lower limits for the height of the liquid crystal monitor assembly; In the stand apparatus of the liquid crystal monitor comprising a lifting means for supporting the support shaft to be able to lift and lower with respect to the stand shaft to be freely adjustable between The lifting means, At least one first elastic body installed in the hollow portion of the stand shaft to elastically bias the support shaft to one side, and allowing the lifting and lowering movement of the support shaft relative to the stand shaft, and at the same time moving the support shaft by the elastic force of the first elastic body. And a stopper means installed on an outer wall of the support shaft to generate a frictional force by friction with the inner wall of the stand shaft so as to have a resistance to block the rest of the stand shaft. The method of claim 1, The magnetic weight W of the liquid crystal monitor and its supporting shaft, the total elastic force T1 and T2 of the first elastic body at the upper and lower lifting points of the liquid crystal monitor and the total frictional resistance of the stopper means F The relationship is given by , Stand apparatus of the liquid crystal monitor characterized in that it is defined to satisfy. The method of claim 1, The first elastic body is a stand of the liquid crystal monitor, characterized in that the coil spring is installed to be guided by a shaft installed in an upright state of the hollow portion of the stand shaft. The method of claim 1, wherein the stopping means, At least one stopper member coupled to the outer wall of the support shaft, and a second elastic body elastically biased between the outer wall of the support shaft and the stopper member to be in close contact with the inner wall of the hollow part of the stand shaft to enable frictional movement. Stand device of the liquid crystal monitor, characterized in that. The method of claim 4, wherein And the stopper member is a resin molding body formed such that at least one surface of the stopper member is in surface contact with the inner wall of the hollow part of the stand shaft. The method of claim 4, wherein The second elastic body is a stand-up device of the liquid crystal monitor, characterized in that the leaf spring formed in a symmetrical form so as to suppress both ends of the stopper member in an equal state. The method of claim 1, A stopper pin is installed on the stand shaft, and a tip end portion of the stopper pin is inserted into a guide groove formed in the lengthwise direction of the support shaft. Stand apparatus of the liquid crystal monitor, characterized in that to determine the lifting section of the support shaft.