KR20140022644A - Display device and stand thereof - Google Patents

Display device and stand thereof Download PDF

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Publication number
KR20140022644A
KR20140022644A KR1020120089033A KR20120089033A KR20140022644A KR 20140022644 A KR20140022644 A KR 20140022644A KR 1020120089033 A KR1020120089033 A KR 1020120089033A KR 20120089033 A KR20120089033 A KR 20120089033A KR 20140022644 A KR20140022644 A KR 20140022644A
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KR
South Korea
Prior art keywords
gear
roller
stand
limiting
rotation
Prior art date
Application number
KR1020120089033A
Other languages
Korean (ko)
Inventor
김재호
허진하
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020120089033A priority Critical patent/KR20140022644A/en
Publication of KR20140022644A publication Critical patent/KR20140022644A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G06F1/166—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to integrated arrangements for adjusting the position of the main body with respect to the supporting surface, e.g. legs for adjusting the tilt angle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00129—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a display device, e.g. CRT or LCD monitor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/655—Construction or mounting of chassis, e.g. for varying the elevation of the tube

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The present invention relates to a stand for a display device. The stand for a display device in accordance with an aspect of the present invention includes a stand body which can be put on the floor and is connected to a display body; a limit roller which is installed in the stand body and is rotated to be rubbed with the floor; and a rotation limiting unit limiting the rotation of the limit roller while the limit roller is rotated at a predetermined angle.

Description

Display device and stand

The present specification relates to a display device and a stand thereof.

A display device is a device for viewing a screen, and in recent years, a flat display device operating in an LCD method or a PDP method has been in the spotlight because it has escaped from a cathode ray tube type which takes up a large volume. Since the flat display device is small in volume and light in weight, the flat display device is advantageous in that it is easy to move, and further, it is easy to rotate.

In recent years, the stand of display apparatuses provided with such an advantage is provided that almost all of them can be rotated left and right, which is called a swivel. This feature allows the display device to be viewed from anywhere, regardless of where the user is located. That is, the display device can be easily viewed by rotating the display device from side to side.

In the conventional case, the display device is configured to rotate left and right while the stand is placed on the floor, for example. In order to rotate the display device left and right, the stand is provided with a friction member, and frictionally rotates with a connection part connected to the display device.

However, according to the conventional method, in order to rotate the display device to the left and right, the user has to additionally apply a force corresponding to the friction force of the friction member as well as the weight of the display device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device and a stand thereof in which a user can easily rotate the display main body left and right.

The stand of the display device according to one aspect, the stand body is connected to the display body, can be placed on the bottom surface; And a rotation limiting device provided in the stand body and including a limiting roller capable of frictionally rotating with the bottom surface, and a rotation limiting unit configured to limit rotation of the limiting roller in a state where the limiting roller is rotated by an angle. .

A display device according to another aspect includes: a display main body; And a stand connected to the display main body and configured to enable swivel of the display main body in a state of being placed on a bottom surface of the display main body, wherein the stand includes: a stand body; And a roller provided in the stand body and capable of frictionally rotating with the bottom surface, wherein the stand body moves together with the roller by rotation of the roller when the display body is swiveled in one direction. .

According to the proposed invention, since the stand rotates together with the display main body by a roller when the display body rotates left and right, there is an advantage that the user can rotate the display main body left and right with little force.

1 is a view showing a display main body and a stand according to a first embodiment of the present invention, Figure 1 (a) is a perspective view of the display main body and the stand, Figure 1 (b) is a plan view of the display main body and the stand 1C is a bottom view of the display main body and the stand.
Figure 2 is a perspective view showing a rotation limiting device provided inside the stand according to the first embodiment of the present invention.
3 is a view showing a state in which rotation of the limiting roller of the rotation limiting device of FIG. 2 is restricted;
4 is a view showing a rotation limiting device according to a second embodiment of the present invention.
5 is a partial perspective view of the rotation limiting device of FIG. 4.
6 is a cross-sectional view taken along the line AA of FIG. 4.
7 is a view showing a state in which the drive gear of the rotation limiting device according to the second embodiment of the present invention is moved to the left.
8 is a view showing a state in which the drive gear of the rotation limiting device according to the second embodiment of the present invention is moved to the left.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but there may be another component between each component. It will be understood that may be "connected", "coupled" or "connected".

1 is a view showing a display main body and a stand according to a first embodiment of the present invention, Figure 1 (a) is a perspective view of the display main body and the stand, Figure 1 (b) is a plan view of the display main body and the stand 1C is a bottom view of the display main body and the stand.

Referring to FIG. 1, the stand 1 according to the first exemplary embodiment of the present invention may be placed on a bottom surface while being connected to the rear surface of the display main body D. FIG. In the present invention, the bottom surface means the surface on which the stand 1 is placed. In the present embodiment, it is apparent that the display device includes a display body and a stand.

The stand 1 includes a stand body 10, at least one free roller 20 for moving (substantially rotating) in a state where the stand body 10 is placed on the floor, and the stand. The body 10 may include a rotation limiting device 100 for limiting rotation in a state in which the body 10 is rotated at an angle.

The stand body 10 includes a first body 11 placed on a bottom surface and a second body 12 extending upward from both sides of the first body 11 and connected to the display main body D. can do.

The one or more free rollers 20 and the rotation limiting device 100 may be provided in the first body 11.

The free roller 20 may be frictionally rotated with the bottom surface.

The rotation limiting device 100 includes a limiting roller 120 that can be frictionally rotated with the bottom surface, and limits the rotation of the limiting roller 120 in a state where the limiting roller 120 is rotated by an angle.

When the rotation of the limiting roller 120 is limited, the rotation of the stand body 10 is limited, and thus the rotation of the display body D is limited.

In the present invention, the stand 10 may be provided with a plurality of rotation limiting devices 100, in which case the free roller 20 may be omitted.

Hereinafter, the rotation limiting device 100 will be described in detail.

2 is a perspective view showing a rotation limiting device provided in the stand according to the first embodiment of the present invention, Figure 3 is a view showing a state in which the rotation of the limiting roller of the rotation limiting device of FIG.

2 and 3, the rotation limiting device 100 according to the first embodiment of the present invention covers a case 110 and a case 110 on which the limiting roller 120 is rotatably seated. It may include a cover 160. As another example, when one surface of the first body 11 covers the case 110, the cover 160 may be omitted.

The case 110 may be coupled to the first body 11 or may be integrally formed with the first body 11 in a separate configuration from the first body 11.

The case 110 may include a shaft seating portion 111 on which the rotation shaft 121 of the limiting roller 120 is seated. In addition, an opening 162 may be formed in the cover 160 to penetrate a part of the limiting roller 120. Of course, an opening may be formed in the first body 11 to allow the restriction roller 120 to pass therethrough.

The rotation limiting device 100 includes a limiting roller 120, a wire 130 connected to the limiting roller 120, a movable member 140 around the wire 130, and the movable member ( It may further include an elastic member 150 for elastically supporting the 140.

The limiting roller 120 may be rotated in both directions in a state seated on the case 110 (A direction and B direction of Figure 3).

For example, the wire 130 may pass through the limiting roller 120 in a direction parallel to the axial direction of the limiting roller 120. The wire 130 passing through the limiting roller 120 is surrounded by the movable member 140, and both ends of the wire 130 are connected to the wire coupling part 113 formed on the case 110. Can be fixed.

As another example, one end of the wire 130 may be fixed to the rotation shaft 121 of the limiting roller 120, and the other end may be fixed to the wire coupling part 113.

As another example, one end of the wire 130 may be fixed to the limiting roller 120 and the other end may be fixed to the movable member 140.

In the present invention, the wire 130 transmits the rotational force of the limiting roller 120 to the movable member 140, the wire 130 may also be referred to as a transmission member. And, the transmission member serves to change the rotational movement of the limiting roller 120 to a linear movement.

A guide 142 is provided at one side or both sides of the movable member 140. In addition, the case 130 is provided with a stopper 115 in contact with the guide 142 to limit the movement of the movable member 140 when the movable member 140 is slid a certain distance.

One end of the elastic member 150 may be fixed to the case 110, and the other end may be fixed to the movable member 140. The elastic member 150 pulls the movable member 140 so that the movable member 140 moved by the rotation of the limiting roller 120 returns to its original position. Thus, the elastic member 150 may be, for example, a tension spring.

As another example, the elastic member 150 may be disposed between the limiting roller 120 and the movable member 130. In this case, the elastic member 150 pushes the movable member 140 so that the movable member 140 moved by the rotation of the limiting roller 120 returns to its original position. Accordingly, the elastic member 150 may be, for example, a compression spring or a leaf spring.

It should be noted that there is no limitation on the position and type of the elastic member 150 in the present invention.

Hereinafter, the operation of the rotation limiting device will be described.

When the display main body D is rotated to the left (counterclockwise direction) in FIG. 1B, the limiting roller 120 rotates in the A direction in FIG. 3, and in FIG. When the display body D is rotated to the right (clockwise), it is assumed that the limiting roller 120 rotates in the B direction in FIG. 3.

1 to 3, when the display body D is rotated to the left side, the free roller 20 and the limiting roller 120 in contact with the bottom surface are rotated in the A direction. As described above, the free roller 20 and the limiting roller 120 are frictionally rotated with the bottom surface. At this time, as the free roller 20 and the limiting roller 120 rotate, the stand 1 may be rotated to the left side together with the display main body D. FIG.

When the limiting roller 120 is rotated in the A direction, the wire 130 is wound around the rotating shaft 121. When the wire 130 is wound around the rotating shaft 121, the movable member 140 is moved in a direction closer to the limiting roller 120. When the guide 142 contacts the stopper 115 while the movable member 140 moves, the movable member 140 stops without moving anymore.

When the movable member 140 stops, the rotation of the limiting roller 120 is stopped. When the rotation of the limiting roller 120 is stopped, the stand 1 is no longer moved, and thus the left side rotation of the display main body D is limited.

In the state in which the rotation of the limiting roller 120 is stopped, the elastic force of the elastic member 150 acts as the movable member 140, but the limiting roller 120 continues the load of the display main body D. The frictional force between the limiting roller 120 and the bottom surface is greater than the elastic force of the elastic member 150 due to the load of the display main body D, so that the limiting roller 120 can remain stopped. have.

On the other hand, when the stand 1 is lifted from the bottom surface, the frictional force between the limiting roller 120 and the bottom surface is removed, the movable member 140 by the elastic force of the elastic member 150 is the limiting roller ( 120 to move away from. In addition, the wire 130 is released from the rotation shaft 121 of the limiting roller 120 so that the limiting roller 120 rotates in the B direction.

On the other hand, when the display body (D) is rotated to the right, the free roller 20 and the limiting roller 120 in contact with the bottom surface is rotated in the B direction. As described above, the free roller 20 and the limiting roller 120 are frictionally rotated with the bottom surface. At this time, as the free roller 20 and the limiting roller 120 rotate, the stand 1 may be rotated to the right side together with the display main body D. FIG.

When the limiting roller 120 rotates in the B direction, the wire 130 is wound around the rotation shaft 121. When the wire 130 is wound around the rotating shaft 121, the movable member 140 is moved in a direction closer to the limiting roller 120. When the guide 142 contacts the stopper 115 while the movable member 140 moves, the movable member 140 stops without moving anymore.

When the movable member 140 stops, the rotation of the limiting roller 120 is stopped. When the rotation of the limiting roller 120 is stopped, the stand 1 is no longer moved, and thus the right side rotation of the display main body D is limited.

According to the present invention, the stand rotates together with the display main body by the roller when the left and right rotation of the display main body (D), there is an advantage that the user can rotate the display main body left and right with little force. .

In the present embodiment, the wire 113, the movable member 140, and the stopper of the case 110 is configured to limit the rotation of the limiting roller 120, collectively referred to as a rotation limiting part. Can be.

4 is a view showing a rotation limiting device according to a second embodiment of the present invention, FIG. 5 is a partial perspective view of the rotation limiting device of FIG. 4, and FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 4.

4 to 6, the rotation limiting device 200 according to the second embodiment of the present invention includes a limiting roller 210 that can be frictionally rotated with a bottom surface, and a center of rotation of the limiting roller 210. It may include a shaft 220 and a drive gear 230 rotatably connected to the shaft 220, and rotates together with the limiting roller 210.

The shaft 220 may be fixed to the first body (see 11 of FIG. 1). That is, one end or both ends 224 of the shaft 220 may have a non-circular cross section so that the shaft 220 is not rotated while being fixed to the first body (see 11 of FIG. 1).

When the limiting roller 210 is rotated, the driving gear 230 may be rotated together with the limiting roller 210 about the shaft 220.

The limiting roller 210 may be formed in a cylindrical shape having a hollow. A plurality of protrusions 211 and 212 are formed on an inner circumferential surface of the limiting roller 210 to form a space into which a part of the driving gear 230 is inserted. The plurality of protrusions 211 and 212 are spaced apart from each other, and a portion of the driving gear 230 is inserted between the plurality of protrusions 211 and 212.

The plurality of protrusions 211 and 212 extend in a direction parallel to the extending direction of the shaft 220. In addition, the plurality of protrusions 211 and 212 are spaced apart in a direction crossing the extending direction of the shaft 220. In addition, the extension lengths of the plurality of protrusions 211 and 212 are formed to be shorter than the length of the limiting roller 210.

As a part of the driving gear 230 is inserted into the space between the plurality of protrusions 211 and 212, the driving gear 230 is based on the same rotational center as the limiting roller 210 and the limiting roller 210. Not only can be rotated together, but can also move relative to the limiting roller 210 in a direction parallel to the shaft 220 during the rotation process.

The rotation limiting device 200 may include a first gear 240 engaged with the driving gear 230 when the driving gear 230 rotates in one direction, and the driving when the driving gear 230 rotates in the other direction. A second gear 250 engaged with the gear 230, a first elastic member 260 elastically supporting the first gear 240, and a second elastic member elastically supporting the second gear 250. 270, the first roller guide 280 through which the shaft 220 penetrates and is connected to one side of the limiting roller 280, and the shaft 220 penetrates to the other side of the limiting roller 280. It may further comprise a second roller guide 290 connected.

The shaft 220 may be formed with a thread 222 (referred to as a rotation guide) for moving the drive gear 230 along the shaft 220. In addition, a screw thread for engaging the screw thread 222 may be formed in the driving gear 230.

A first gear tooth 232 is formed on one surface of the driving gear 230 to be engaged with the first gear 240, and a second gear tooth 234 is engaged with the second gear 250 on the other surface. ) Is formed.

The first gear 240 and the second gear 250 may be accommodated in the limiting roller 210. Thus, the volume of the rotation limiting device can be reduced and compact.

The shaft 220 penetrates through the first gear 240 and the second gear 250. The first gear 240 and the second gear 250 are spaced apart from each other, and the driving gear 230 is disposed between the first gear 240 and the second gear 250. In addition, the driving gear 230 may be spaced apart from the first gear 240 and the second gear 250 or may be spaced apart from the first gear 240 and the second gear, depending on whether or not the limiting roller 210 is rotated. It may be engaged with any one of the gears 250.

Gear teeth 242 are formed on a surface (first surface) facing the driving gear 230 of the first gear 240. Gear teeth 252 are formed on a surface (first surface) of the second gear 250 that faces the driving gear 230.

One end of the first elastic member 260 is connected to the second surface of the first gear 240. The other end of the first elastic member 260 is connected to the first roller guide 280. One end of the second elastic member 270 is connected to the second surface of the second gear 250. The other end of the second elastic member 270 is connected to the second roller guide 290.

For example, the first elastic member 260 and the second elastic member 270 may be compression springs. Accordingly, the first elastic member 260 provides the first gear 240 with an elastic force for pushing the first gear 240 toward the driving gear 230. The second elastic member 270 provides an elastic force for pushing the second gear 250 toward the driving gear 230 to the second gear 250.

The first gear 240 is in contact with one end of the protrusions 211 and 212 while being supported by the first elastic member 260. The second gear 250 is in contact with the other ends of the protrusions 211 and 212 while being supported by the first elastic member 270. The first gear 240 and the second gear 250 maintain their stopped state in contact with the protrusions 211 and 212. That is, the first gear 240 and the second gear 250 can no longer move in a direction close to the driving gear 230 in contact with the protrusions 211 and 212. Accordingly, the protrusions 211 and 212 serve as stoppers for restricting one-way movement of the first gear 240 and the second gear 250.

As illustrated in FIG. 6, the first gear 240 and the second gear 250 are in contact with the first gear 240 and the second gear 250 in contact with the protrusions 211 and 212. May be spaced apart from the driving gear 230. In addition, while the driving gear 230 is rotated together with the limiting roller 210, the driving gear 230 may be moved left or right along the shaft 220 by a screw thread of the shaft 220. Can be.

When the driving gear 230 is moved to the left side, the driving gear 230 may be engaged with the first gear 240, and when the driving gear 240 is moved to the right side, the driving gear 230 may be engaged with the second gear 250. After the driving gear 230 and the first gear 240 are engaged, the first gear 240 may be rotated together with the driving gear 230, and the driving gear 240 and the second gear may be rotated. After the 250 is engaged, the second gear 250 may be rotated together with the driving gear 240.

Holes 282 and 292 through which the shaft 220 passes may be formed in the roller guides 280 and 290. The holes 282 and 292 may be formed in a shape corresponding to the ends of the shaft 220. That is, the holes 282 and 292 may have a non-circular cross section. Accordingly, the roller guides 280 and 290 are prevented from rotating in a state in which the roller guides 280 and 290 are coupled to the shaft 220.

Hereinafter, the operation of the rotation limiting device will be described.

7 is a view showing a state in which the drive gear of the rotation limiting device according to the second embodiment of the present invention is moved to the left, Figure 8 is a drive gear of the rotation limiting device according to the second embodiment of the present invention to the left The figure shows the movement.

In FIG. 1B, when the display body D is rotated to the left (counterclockwise), the limiting roller 210 rotates in the C direction in FIG. 7, and the drive gear 230 is moved to the left. Let's assume it's moving. In addition, when the display body D is rotated to the right (clockwise) in FIG. 1B, the limiting roller 210 rotates in the D direction in FIG. 8, and the driving gear 230 is to the right. Assume that we move to.

4 to 8, when the display body D is rotated to the left side, the free roller (see 20 in FIG. 1) and the limiting roller 210 in contact with the bottom surface rotate in the C direction as shown in FIG. 8. do. As described above, the free roller (see 20 in FIG. 1) and the limiting roller 210 are frictionally rotated with the bottom surface. At this time, as the free roller (see 20 of FIG. 1) and the limiting roller 120 rotate, the stand 1 may be rotated to the left side together with the display main body D. FIG.

When the limiting roller 210 is rotated in the C direction, the drive gear 230 is rotated in the C direction together with the limiting roller 210. The drive gear 230 is moved to the left along the shaft 220 by the screw thread 222 of the shaft 220 while the drive gear 230 is rotated in the C direction. When the driving gear 230 is moved to the left side, the driving gear 230 is meshed with the first gear 240. In the state where the driving gear 230 and the first gear 240 are engaged, the driving gear 230 and the first gear 240 rotate together and move to the left side.

When the first gear 240 moves to the left side, the first elastic member 260 is compressed. When the first gear 240 is moved to the left by a predetermined distance, the compressive force of the first elastic member 260 is maximized, and the first gear 240 can no longer rotate. Then, the rotation of the drive gear 230 is stopped, and thus the rotation of the limiting roller 210 is stopped.

When the rotation of the limiting roller 210 is stopped, the stand is no longer moved, and thus the left side rotation of the display main body D is limited.

In the state in which the rotation of the limiting roller 210 is stopped, the elastic force of the first elastic member 260 acts as the first gear 240, but the limiting roller 120 of the display main body D Since the frictional force between the limiting roller 210 and the bottom surface is greater than the elastic force of the first elastic member 260 by the load of the display main body D, the limiting roller 210 stops. Can remain in one state.

On the other hand, when the stand 1 is lifted from the bottom surface, since the frictional force between the limiting roller 210 and the bottom surface is removed, the first gear 240 is driven by the elastic force of the first elastic member 260. Rotate in the direction and move to the right. Then, the driving gear 230 also moves to the right side while rotating in the D direction together with the first gear 240.

When the first gear 240 contacts one end of the protrusions 211 and 212 while the driving gear 230 and the first gear 240 are rotated together and move to the right, the first gear ( 240 is stopped, the drive gear 230 is moved to the right while rotating a certain angle by the inertial force. When the driving gear 230 is further rotated by a predetermined angle while the first gear 240 is stopped, the driving gear 230 is spaced apart from the first gear 240.

On the other hand, when the display body (D) is rotated to the right, the free roller 20 and the limiting roller 120 in contact with the bottom surface is rotated in the D direction as shown in FIG.

When the limiting roller 210 is rotated in the D direction, the drive gear 230 is rotated in the D direction together with the limiting roller 210. In the process of rotating the drive gear 230 in the D direction, the drive gear 230 is moved to the right along the shaft 220 by the thread 222 of the shaft 220. When the driving gear 230 is moved to the right, the driving gear 230 is meshed with the second gear 250. In the state where the driving gear 230 and the second gear 250 are engaged, the driving gear 230 and the second gear 250 rotate together and move to the right. When the second gear 250 is moved to the right, the second elastic member 270 is compressed. When the second gear 250 moves to the right by a certain distance, the compressive force of the second elastic member 270 becomes maximum, and the second gear 250 may not rotate any more. Then, the rotation of the drive gear 230 is stopped, and thus the rotation of the limiting roller 210 is stopped.

When the rotation of the limiting roller 210 is stopped, the stand is no longer moved, and thus the right side rotation of the display main body D is limited.

On the other hand, when the stand 1 is lifted from the bottom surface, since the frictional force between the limiting roller 210 and the bottom surface is removed, the second gear 250 is C by the elastic force of the second elastic member 270. Rotate in the direction and move to the left. Then, the driving gear 230 also moves to the left side while rotating in the C direction together with the second gear 250. When the second gear 250 is in contact with the other ends of the protrusions 211 and 212 while the driving gear 230 and the second gear 250 rotate together and move to the left side, the second gear ( 250 is stopped, and the drive gear 230 is moved to the left while rotating a certain angle by the inertial force. When the driving gear 230 is further rotated by a predetermined angle while the second gear 250 is stopped, the driving gear 230 is spaced apart from the second gear 250.

In the present embodiment, the driving gear 230, the first gear 240, the second gear 250, the first elastic member 260, and the second elastic member 270 may rotate the limit roller 210. Since it plays a role of limiting, it can be collectively referred to as a rotation limiting part.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms used generally, such as terms defined in a dictionary, should be interpreted to coincide with the contextual meaning of the related art, and shall not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present invention.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: stand 20: free roller
100, 200: rotation limit device

Claims (14)

A stand body connected to the display body and placed on the bottom surface; And
A display including a limiting roller provided on the stand body and including a limiting roller capable of frictionally rotating with the bottom surface, and a rotation limiting unit configured to limit rotation of the limiting roller in a state where the limiting roller is rotated by an angle. Stand of the appliance. The method of claim 1,
The stand body, the stand of the display device including an opening for passing the restriction roller. The method of claim 1,
The rotation limiting portion, and a transmission member for transmitting the rotational force of the limiting roller,
A movable member that receives and receives rotational force from the transmission member;
And a stopper for limiting movement of the movable member. The method of claim 3, wherein
And the movable member converts the rotational movement of the limiting roller into a linear movement and transmits the linear movement to the movable member. The method of claim 3, wherein
One end of the movable member is fixed to the rotating shaft of the limiting roller, and the movable member is wound around the rotating shaft when the limiting roller is rotated. The method of claim 3, wherein
And a resilient member for returning the moved movable member to its original position. The method of claim 1,
The rotation limiting portion, and the drive gear rotates with the limiting roller,
A shaft connected to the drive gear to move the driver while the drive gear is rotated;
A first gear connected to the shaft and engaged with the driving gear when the driving gear rotates in one direction;
A second gear connected to the shaft and engaged with the driving gear when the driving gear rotates in another direction;
A first elastic member elastically supporting the first gear,
And a second elastic member elastically supporting the second gear. The method of claim 7, wherein
And the drive gear, the first gear and the second gear are accommodated in the limiting roller. The method of claim 7, wherein
The drive gear is located between the first gear and the second gear,
The drive gear moves along the shaft in accordance with the rotational direction of the drive gear and meshes with the first gear or the second gear,
And the drive gear is rotatable with the engaged gear. The method of claim 7, wherein
The limiting roller includes a stopper for preventing movement of the first gear and the second gear in one direction in a state in which each of the first gear and the second gear is elastically supported by the elastic member. The method of claim 7, wherein
The shaft is a stand of the display device including a rotation guide for moving the drive gear along the shaft during the rotation of the drive gear. The method of claim 1,
And at least one free roller provided on the stand body and capable of frictionally rotating with the bottom surface. Display main body; And
A stand connected to the display main body and configured to enable the swivel of the display main body in a state of being placed on a bottom surface thereof;
The stand, the stand body; And
It is provided on the stand body, and includes a roller that can be frictionally rotated with the bottom surface,
And the stand body moves together with the roller by the rotation of the roller when the display body is swiveled in one direction. The method of claim 13,
The stand further includes a rotation limiting unit for limiting the rotation of the roller when the roller rotates a certain angle.
KR1020120089033A 2012-08-14 2012-08-14 Display device and stand thereof KR20140022644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120089033A KR20140022644A (en) 2012-08-14 2012-08-14 Display device and stand thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120089033A KR20140022644A (en) 2012-08-14 2012-08-14 Display device and stand thereof

Publications (1)

Publication Number Publication Date
KR20140022644A true KR20140022644A (en) 2014-02-25

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