KR200221058Y1 - receipt and withdrawal system of monitor for multipurpose desk - Google Patents

Abstract

According to the present invention, a through hole is formed in the upper plate so that the monitor housing 300 can penetrate up and down, and in the desk 100 having a keyboard tray 150 for placing a keyboard on the lower portion of the upper plate to be moved back and forth, Guide shaft 40 having a predetermined height and the pillars 30 are symmetrically installed on both sides of the bottom plate 114 of the desk, and the fixing plate 50 supporting the monitor housing 300 on the guide shaft 40 is along the axis. Supported to be movable in the vertical direction, the drive shaft 60, which is located at both ends of the lower side of both pillars 30 is connected to the drive motor 80 so as to enable reverse rotation, the rotational drive is possible, the upper end of the pillar 30 One end of the drive chain 70 rotatably connected to the sprocket and the drive shaft 60 is rotatably connected to one upper surface of the fixed plate 50 and the other end of the drive chain 70 is fixed plate 50 Connected to one side bottom, sphere As the fixed plate 50 is moved up and down by the chain according to the rotation of the motor 80, the structure is simple and the installation space is reduced, and the power transmission is smooth and the monitor of the multipurpose desk to suppress the deformation even after long-term use It is a lifting device.

Description

Receipt and withdrawal system of monitor for multipurpose desk}

The present invention is an improvement plan of Patent Application No. 29695 and Utility Model Registration No. 16585 (multipurpose desk), which was filed by the inventor of the present application in 2000, and relates to an apparatus for elevating or lowering the monitor up and down. The present invention relates to a monitor elevating device for a multipurpose desk, which is driven by a chain, so that the structure is simple and the elevating or lowering position is accurate even after long-term use.

As shown in FIGS. 1 to 3, the multipurpose desk of the present application has a main body in which a storage space is formed so that the drawer storage unit 120 and the computer main body 1 are placed so that the drawers 121 are retractably received. The accommodating part 130 is independently formed, and both side portions of the top plate 110 of the desk 100 are detachably coupled to the upper part of the drawer accommodating part 120 and the main body accommodating part 130. A rectangular through hole 111 having a predetermined width is formed in the center so that the monitor housing 300 in which the monitor 2 is placed can pass therethrough. In addition, both sides of the keyboard tray 150 on which the guide rails 151 are mounted at the upper end sides of the drawer storage unit 120 and the main body storage unit 130 are mounted on both guide rails 151. Supported by the slider 152 to be movable, the front cover 112 and the rear cover 113 is detachably coupled at a predetermined interval between the drawer storage unit 120 and the main body storage unit 130, the front The bottom plate 114 is coupled to a lower portion between the cover 112 and the rear cover 113, and a lifting device is installed on the bottom plate 114.

Here, the lifting device, as shown in Figure 3 and 4, the lower frame 211 is coupled to the bottom plate 114 by the fixing bolts (213) with the anti-vibration rubber (not shown) between, the lower One end of the frame 211 is integrally coupled to the lower end of the fixed frame 215 extending in the vertical direction at a predetermined distance from the side of the drawer housing 120, so that the links intersect a pair of zigzag form before and after One side lower end of the lift 220 which is connected to be formed to be folded is rotatably supported by a hinge on the upper surface of the lower frame 211, and rotatably supported by the roller 221 on the other lower end of the lift 220. The upper frame 214 is coupled by a hinge and a roller 221 formed to be coupled to the upper surface of the lower frame 211 so as to support the cloud movement, the lower portion of the lift 220 symmetrically.

On the other hand, the upper frame 214 and the lower frame 211 is formed symmetrically, each of the roller 221 is formed in a flat portion of a predetermined width so as to contact the rolling, the outer portion of the flat portion is bent to guide the movement of the roller 221 The bottom surface of the monitor housing 300 in which the monitor 2 is placed on the upper surface of the upper frame 214 is supported. In addition, the fixed frame 215 is in close contact with the drawer housing 120, the lower end is coupled to one side of the lower frame 211, the second pulley 216 is rotatably coupled to the middle of the upper end, the rear upper end Limit switches 217 for limiting the upper and lower strokes of the lift 220 are mounted to the lower end and the lower end.

Further, the driving roller 231 is rotatably supported at the rear end of the fixed frame 215 by the driving switch 218. The first motor pulley 230 is connected to the driving roller 231 so as to be rotatably driven, and the flexible wire 232 fixed to one upper end of the fixed frame 215 is coupled to the lift 220. 226 and the outer circumferential surface of the second pulley 216 are connected to be wound around the outer circumferential surface of the driving roller 231.

The conventional multi-purpose desk configured as described above has the rear end of the slider 152 separated from the drive switch 218 formed as a push switch when the keyboard tray 150 is pulled out from the lower side of the upper plate 110 so that the drive switch 218 is driven by the drive motor 230. The drive motor 230 is rotated in the forward direction by applying a forward power to the drive, and when the keyboard 150 is stored below the upper plate 110, the drive switch 218 applies reverse drive power to the drive motor 230. The drive motor 230 is rotated in the reverse direction, the rotation direction of the drive roller 231 is also determined according to the rotation direction of the drive motor 230. On the contrary, the flexible wire 232 wound or wound on the outer circumferential surface of the driving roller 231 is released. When the flexible wire 232 is wound around the outer circumferential surface of the driving roller 231, the lift 220 is lifted upward. When the flexible wire 232 is released from the outer circumferential surface of the driving roller 231, the monitor 2 and the monitor housing ( The lift 220 is lowered and folded by the load of 300). In this case, since the flexible wire 232 lifts and lifts the lift 220 through the first pulley 226 and the second pulley 216, the required driving force of the driving motor 230 is reduced, and the upper end of the lift 220. When the predetermined height is raised, the upper limit switch 217 is contacted to cut off the power of the driving motor 230, and thus the movement is stopped. When the upper end of the lift 220 falls, the lower limit switch 217 is contacted. As a result, the downward movement is limited.

However, such a conventional multipurpose desk has a disadvantage that the device for supporting the monitor 2 and lifting or lowering up and down is composed of a lift 220 by folding the frame, which is complicated in structure and occupies a lot of installation space. Driven by the pulleys 216 and 226 and the flexible wire 232, the flexible wire 232 is tensioned for a long time so that the lifting or lowering position of the monitor 2 does not coincide with the surface of the desk. There was a problem that the merchandise is lowered.

The present invention is to compensate for the above-mentioned conventional problems, the lift supporting the monitor is moved up and down along the vertical guide axis, the drive chain is connected to the lift by a drive motor to be driven up and down to the lift The purpose of this invention is to provide a multi-purpose desk lifting device that allows the structure of the monitor to be raised or lowered precisely due to its simple structure and greatly reduced installation space and less deformation even for long-term use.

1 is a perspective view showing a desk of the present application to which the present invention is applied

Figure 2 is an exploded perspective view showing a conventional multipurpose desk

3 is a cross-sectional view showing a conventional multipurpose desk

Figure 4 is a perspective view showing a monitor lift device of a conventional multipurpose desk

5 is a perspective view of the monitor lifting device of the present invention

<Explanation of symbols for main parts of the drawings>

20: substrate 21: height inspection bolt

30: pillar 40: guide shaft

50: fixed plate 51: slider

52: protrusion plate 60: drive shaft

70: drive chain 80: drive motor

The present invention is installed on both sides of the upper surface of the base plate bottom plate of the desk symmetrically installed with a guide shaft and a column to support both sides of the fixed plate for supporting the monitor housing on the guide shaft on both sides is supported to be movable in the vertical direction along the axis On the bottom surface of the bottom plate, both end portions of the drive shafts positioned at the lower sides of the pillars are rotatably supported, and are rotatably connected by a drive motor that is rotated forward / reversely. One end of the drive chain which is supported to be interlocked to the sprocket to be interlocked is connected to one upper surface of the fixed plate, the other end is connected to one bottom of the fixed plate, and the other end is connected to the drive shaft so as to be interlocked with the driving shaft. do.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 5, a pillar 20 having a predetermined height on both sides of the substrate 20 is coupled to a metal substrate 20 on an upper surface of the bottom plate 114 of the desk 100. 30 and the guide shaft 40 are installed symmetrically with each other, and both side ends of the fixed plate 50 supporting the monitor housing 300 on both guide shafts 40 are slid in the axial direction by the slider 51. This is possibly combined. In addition, both ends are positioned at the rear of both pillars 30 and the drive shaft 60 to which the first sprocket 61 is coupled to both ends is rotatably supported by the bearing 63 at the rear surface of the fixed plate 50. The second sprocket 31 is rotatably coupled to the upper end of the pillar 30 such that the driving chain 70 is interlocked with the first sprocket 61 and the second sprocket 31 so as to be interlocked with each other. One end of the drive chain 70 passing through 31 is connected to the upper surface of the slider 51, and the other end of the drive chain 70 passing through the first sprocket 61 protrudes on the side of the fixing plate 50. To the bottom of the publication 52. In addition, the third sprocket 62 is coupled to the outer circumferential surface of one end of the drive shaft 60 so that the third sprocket 62 is installed on the upper surface of the front substrate 20 and driven to the drive motor 80 capable of forward / reverse rotation. Possibly connected.

Here, the substrate 20 is bent to the front and rear both ends of the steel plate to the bottom so that the surface on which the devices are installed is installed with a predetermined space with the bottom plate 114, the portion where each end of the fixing plate 50 is located Height inspection bolts 21 for the horizontal inspection of the fixed plate 50 is preferably to be installed so that the height can be adjusted up and down.

In addition, the upper limit and the lower end of the column 30, the limit switch 81 is installed so as to be in contact with the fixing plate 50, respectively, the limit switch 81 is connected to the power supply of the drive motor 80 controllable, keyboard A drive switch operatively connected to the drive motor 80 on the rear side desk of the tray 150 is operable by the rear end of the keyboard tray 150.

According to the present invention configured as described above, when the keyboard tray 150 is pulled out, power is applied to the driving motor 80 in the positive direction by the driving switch and the driving shaft 60 and the first sprocket are rotated in the positive direction. 61 is rotated, the drive chains 70 on both sides are interlocked by the first sprockets 61 on both sides, and the slider 51 is pulled upward by one end of the drive chain 70 being moved. The protruding plate 52 of the fixing plate 50 is pushed upward by the other end of the holding plate 50 so that the fixing plate 50 supporting the monitor housing 300 is moved upward. In addition, when the fixed plate 50 is raised to a certain height upward along the guide shaft 40, the upper limit switch 81 is in contact with, and when the limit switch 81 is operated, the power of the driving motor 80 is cut off. The rotation is stopped. On the other hand, when the keyboard tray 150 is pushed into the desk, the drive switch is applied to the drive motor 80 in the reverse direction so that the reverse rotation, the drive shaft 60 is rotated in the opposite direction, the drive chain 70 is also opposite The fixed plate 50 is moved downwards, and when the fixed plate 50 reaches the lower predetermined position, the limit switch 81 mounted at the lower part is operated to cut off the power of the driving motor 80. ) Will stop.

The present invention has a structure in which the fixed plate is moved up and down along the guide shaft, the structure is simple and the installation space is reduced, the power is transmitted by the drive chain to operate the fixed plate, so the operation is smooth and extended or deformed even after long-term use. The upper surface of the monitor housing always coincides with the upper surface of the desk during the lowering, and the monitor housing bottom plate is always flush with the upper surface of the desk during the lowering.

Claims (1)

A through hole is formed in the upper plate so that the monitor housing can penetrate up and down, and the desk is provided with a keyboard tray for placing the keyboard on the lower portion of the upper plate to be moved back and forth, The guide shaft 40 and the pillar 30 having a predetermined height are symmetrically installed on both sides of the bottom plate of the desk, and the fixing plate 50 for supporting the monitor housing on the guide shaft is supported to be movable upward and downward along the axis. The drive shaft 60 is positioned at both ends of the lower sides of the pillars, and is rotatably connected to the drive motor 80 to enable forward and reverse rotation, and to the sprocket and the drive shaft rotatably supported at the upper end of the pillar. One end of the drive chain (70) which is connected to be interlocked is connected to the upper surface of the one side of the fixed plate and the other end of the drive chain is connected to the bottom of the fixed plate one side, the lifting device of the multipurpose desk.