WO2017082571A1

WO2017082571A1 - Device for adjusting position of display using chain

Info

Publication number: WO2017082571A1
Application number: PCT/KR2016/012433
Authority: WO
Inventors: 강태욱
Original assignee: 주식회사 탑시스템; 강태욱
Priority date: 2015-11-09
Filing date: 2016-11-01
Publication date: 2017-05-18
Also published as: CN108353142A; CN108353142B; KR101600925B1

Abstract

The present invention relates to a device for adjusting the position of a display using a chain and, particularly, to a device for adjusting the position of a display using a chain, wherein, when the device to which the display is mounted performs an elevating movement, the elevating movement can be performed more smoothly using the chain.

Description

Display position control with chain

The present invention relates to a display position adjusting device using a chain, and more particularly, to a display position adjusting device using a chain to make the lifting movement more smoothly using the chain when the lifting movement is carried out with a display mounted thereon.

While watching TV is one of the main entertainment and information sources for people, watching TV for a long time in a fixed position causes discomfort and causes diseases such as periarthritis of the scapula, low back pain, spondylosis, and sciatica. You can.

To solve this problem, we tried to make people enjoy the rich and colorful TV programs.

Thus, in recent years, people can comfortably watch TV by remotely or manually adjusting the height and time of the TV set according to the viewing angle at their lying or sitting position in order to position the TV set within the optimal view. There is a need for a display positioning device that satisfies the requirements to be treated by patients with the same disease and hospital beds.

The present inventor is disclosed in Korean Patent Registration No. 10-0521359, and as shown in FIGS. 32 to 35, the patent registration "TV receiver position control device" that satisfies the above requirements.

This allows the viewer to move the TV receiver to a desired height according to the viewer's eye height, and to adjust the angle so that the viewer can watch at an appropriate angle. 10), a movable block 20 which is supported to be movable up and down along the frame 10 and to which the TV receiver 200 is fixed, and which lifts the movable block 20 with respect to the frame 10. Lifting means and the angle adjusting means for adjusting the angle of the TV receiver 200 with respect to the movable block 20.

The elevating means is supported by the frame 10 to be rotatably extended in the vertical direction, the screw shaft 11 is screwed to the movable block 20, and the frame shaft parallel to the screw shaft 11 And a

guide rod

12 and 13 to which the movable block 20 is slidably coupled, and a driving motor to rotate and drive the screw shaft 11.

The angle adjusting means, the lower portion of the rear side of the TV receiver 200 and the lower portion of the movable block 20 corresponding thereto are rotatably connected by the coupling of the

hinge pieces

201, 21, the movement Rotatingly driven by the rotary motor 500 in the upper portion of the block 20 and the vertical center portion 31 is formed at the end and the rotary core 30, one end is rotatably coupled to the end of the vertical protrusion (31) The link member 32 and one end is rotatably connected to the other end of the link member 32 and the other end has a structure provided with a lever member 33 fixed to the upper side of the TV receiver 200.

Such a device can be moved to the desired height to fit the viewer's eye height of the TV receiver 200 by the forward and reverse driving of the screw drive motor and the rotary motor 500, and also to adjust the angle to watch at a suitable angle remote Control by control.

However, such a device has a structure in which the screw 11 is exposed to the outside and the contamination rate due to foreign matter such as dust in oil such as grease applied to the screw 11 due to static electricity by the TV receiver 200 is high. There is a problem in that the lifting operation is not smooth and the cleaning cycle is shortened.

The present invention was created in order to solve the above problems, the chain is configured on both sides of the support frame in the vertical direction, the bracket is moved along the chain by combining the bracket to the lifting movement to the chain by the chain rotation. The purpose of the present invention is to provide a display positioning device using a chain that can move up and down more smoothly and reduce the trouble caused by dust.

The present invention has been created to solve the above problems, the pedestal; A pair of support frames arranged in parallel in the vertical direction on both the left and right sides of the upper surface of the pedestal; A bracket which is slidably coupled to move up and down along the support frame between the support frames; A main link rotatably coupled to the bracket in a vertical direction and equipped with a display at a front end thereof; Lifting means for lifting and lowering the bracket and the main link along the support frame; A housing having a main hole protruding and sliding in the front thereof, and having a lower end fixed to the pedestal; It includes, The lifting means, and the main shaft is mounted to protrude to both sides of each of the support frame in the lower support frame; A pair of main sprockets mounted at both ends of the main shaft; A pair of driven sprockets mounted on the upper outer side of the support frame so as to correspond to the main sprocket; A pair of chains mounted to the main sprocket and the driven sprocket, on one side of which the bracket is coupled; A first motor mounted between the support frames to rotate the main shaft; Characterized in that consists of.

In addition, the support frame is made of a "c" shape formed with an opening opening in the rear in the cross-section, the bracket is mounted on both left and right sides spaced apart in the vertical direction in front of the outer peripheral surface in contact with the front surface of the support frame to rotate A first guide roller; A second guide roller mounted on both left and right sides to be spaced apart in the vertical direction from the rear and disposed at the rear of the support frame; Is mounted, the second guide rollers, and the first roller portion which is in front contact with the end of the opening of the support frame; A second roller part protruding from the front surface of the first roller part so as to be in contact with the inner circumference of the opening and rotating; Is integrally formed, and during the lifting movement of the bracket by the lifting means, an outer circumferential surface of the first guide roller rotates in contact with the front surface of the support frame, and the second guide roller has the first roller part of the opening. While the front end is in contact with the end, the second roller portion is characterized in that the outer peripheral surface is in contact with the inner surface of the opening to rotate while preventing the flow of the bracket.

In addition, the bracket is formed with a support projecting forward, the main link is hinged rotatably coupled to the support by a first hinge to the seesaw movement, but is mounted on the bracket and the main link to the first hinge Angle adjusting means for moving the seesaw to the center; A balancing member mounted at a rear end of the main link to balance the weight of the display; It characterized in that it further comprises.

The angle adjusting means may include a first rack gear formed in a fan shape and mounted to the rear of the main link; A first pinion gear mounted to the bracket to mesh with the first rack gear; A second motor mounted to the bracket to rotate the first pinion gear; Including, but, if the second motor is rotated, the main link by the first pinion gear and the first rack gear to seesaw the center of the first hinge to adjust the viewing angle of the display .

In addition, the balancing member, the weight member is formed in the rear lower portion of the bracket is formed through the guide hole penetrated in the vertical direction; A guide rod having a lower end mounted to the pedestal and an upper end mounted to the housing to be inserted into the guide hole to guide the weight member; A connecting rope having one end mounted at a rear end of the main link and the other end mounted at an upper portion of the weight member; A guide roller mounted on the bracket to guide the connection rope; Including, the guide roller guides the connecting rope when the vertical movement of the weight member according to the angle adjustment of the main link by the angle adjusting means, to prevent the front and rear flow of the weight member, the guide rod is the During the lifting movement of the weight member by the lifting means, characterized in that for guiding the weight member in the vertical direction.

In addition, the left and right both sides of the housing is provided with a hole in which the speaker is located, the speaker exposure means for entering the speaker into the housing or protrudes outside; characterized in that it further comprises.

In addition, the speaker exposure means, through the installation hole in and out of the housing, the sliding member is mounted, the speaker is mounted, the guide groove is formed, the second rack gear is provided; A fixing plate provided with a guide protrusion fixed to the housing and sliding to the guide groove and a second pinion gear meshing with the second rack gear; And a third motor mounted to the fixed plate to rotate the second pinion gear, wherein the second pinion gear interlocks the second rack gear by driving the third motor to mount the speaker. It is characterized in that it is projected to the inside and outside of the housing through the installation hole.

The sliding member may further include: a guide installation groove open in the housing direction and provided with the second rack gear and the guide groove; A speaker installation groove formed at a side of the guide installation groove to install a speaker; A cover installed on the upper and lower surfaces of the sliding member to block the upper and lower surfaces of the guide installation groove and the speaker installation groove; When the sliding member is projected to the outside of the housing, the installation hole is closed by the front, rear, side and the cover of the sliding member, the sliding when the sliding member is entered into the housing The side of the member is adapted to close the installation hole.

In addition, the speaker installation groove is characterized in that the speaker is coupled in the vertical direction sliding.

In addition, the speaker exposure means, the hinge member is coupled to the housing to open and close the installation hole and the speaker is mounted; A driven gear mounted to the hinge coupler of the rotating member; A main gear mounted to the housing to engage the driven gear; And a fourth motor mounted on the housing to rotate the main gear, wherein the rotating member is rotated by the driving of the fourth motor so that the speaker mounted on the rotating member enters the housing through the installation hole. Or to protrude to the outside.

In addition, the rotating member may include a first blocking plate which is provided with a speaker installation groove in which a speaker is installed to close the installation hole when the speaker enters the housing; A second blocking plate which closes the installation hole when the speaker protrudes out of the housing; A hinge shaft formed on an upper surface and a lower surface of the first blocking plate and the second blocking plate to be hinged to the rear upper and lower surfaces of the installation hole of the housing; Wherein, the rotating member is rotated about the hinge axis when the speaker enters the housing through the installation hole the first blocking plate closes the installation hole, the speaker through the installation hole The second blocking plate is configured to close the installation hole when protruding out of the housing.

In addition, the speaker mounting groove is coupled to the speaker sliding in the vertical direction, characterized in that the cover is fixed to prevent the separation of the speaker on the upper and lower surfaces of the speaker installation groove.

In addition, the sensor unit for detecting the on (on), off (off) of the display; A control unit controlling the third motor or the fourth motor by a signal of the sensor unit; The control unit may further include controlling the third motor or the fourth motor to expose the speaker to the outside of the housing when the display is turned on by the signal of the sensor unit. When the power is off, the third motor or the fourth motor is controlled to enter the speaker into the housing.

1 is a perspective view showing a configuration according to an embodiment of the present invention.

2 and 3 are one and the other perspective view showing a configuration excluding the housing according to an embodiment of the present invention.

4 and 5 are one and the other perspective view showing the lifting means and the bracket according to an embodiment of the present invention.

Figure 6 is a cross-sectional view showing the configuration of the bracket according to an embodiment of the present invention.

7 and 8 are one and the other perspective view showing the configuration of the bracket, the main link, the angle adjusting means and the balancing member according to an embodiment of the present invention.

Figure 9 is a side view showing the configuration of the bracket, the main link, the angle adjusting means and the balancing member according to an embodiment of the present invention.

10 is a perspective view showing a state in which the sliding member is protruded by the speaker exposure means by the first method according to an embodiment of the present invention.

11 is a perspective view showing a sliding member entered by the speaker exposure means by the first method according to an embodiment of the present invention.

12 is a perspective view showing the configuration of the speaker exposure means according to the first method according to an embodiment of the present invention.

13 and 14 are exploded perspective view showing the configuration of the speaker exposure means according to the first method according to an embodiment of the present invention.

FIG. 15 is a cross sectional view showing an operation process of a speaker exposure means according to a first method according to an embodiment of the present invention;

16 is a perspective view showing a state in which the rotating member is projected by the speaker exposure means by the second method according to an embodiment of the present invention.

17 is a perspective view showing a state in which the rotating member is entered by the speaker exposure means by the second method according to an embodiment of the present invention.

18 is a perspective view showing the configuration of a speaker exposure means by a second method according to an embodiment of the present invention.

19 is an exploded perspective view showing the configuration of a speaker exposure means by a second method according to an embodiment of the present invention.

20 is a cross-sectional view showing the operation of the speaker exposure means according to the second method according to an embodiment of the present invention.

21 is a perspective view showing a sliding member protruding by the speaker exposure means by a third method according to an embodiment of the present invention.

22 is a perspective view showing a sliding member entered by the speaker exposure means by a third method according to an embodiment of the present invention.

Figure 23 is a perspective view showing the configuration of the speaker exposure means by the third method according to an embodiment of the present invention.

24 and 25 are exploded perspective views showing the configuration of the speaker exposure means according to the third method according to an embodiment of the present invention.

26 is a flat sectional view showing the operation of the speaker exposure means according to a third method according to an embodiment of the present invention.

27 is a perspective view showing a state in which the rotating member is projected by the speaker exposure means by the fourth method according to an embodiment of the present invention.

28 is a perspective view showing a state in which the rotating member is entered by the speaker exposure means by the fourth method according to an embodiment of the present invention.

29 is a perspective view showing the configuration of a speaker exposure means according to a fourth method according to an embodiment of the present invention.

30 is an exploded perspective view showing the configuration of a speaker exposure means according to a fourth method according to an embodiment of the present invention.

31 is a cross-sectional view showing the operation of the speaker exposure means according to the fourth method according to an embodiment of the present invention.

32 is a conceptual view showing a conventional display elevating device.

33 is a perspective view of a main drive of FIG. 32;

34 and 35 are operation diagrams for explaining an angle adjustment state.

Display position adjusting device using a chain of the present invention according to an embodiment, the chain is configured on both sides of the support frame in the up and down terms, the bracket along the chain by combining the bracket to the lifting movement to the chain by the rotation of the chain By allowing the elevating movement, the elevating movement can be performed more smoothly, and the trouble caused by dust can be reduced.

1 to 31, the display position adjusting device using a chain according to an embodiment of the present invention, the pedestal 110, the support frame 200, the bracket 300, the main link 400, the angle Control means 500, balancing member 600, lifting means 700, the housing 100, shielding means (not shown) and speaker exposure means (800, 900, 80, 90).

The pedestal 110 is supported on the bottom surface as shown in Figure 1 serves to enable the present invention to stand on the ground and the like.

In the present exemplary embodiment, the pedestal 110 is disposed below the housing 100 to support the ground, etc. Alternatively, the pedestal 110 may be mounted on the rear surface of the housing 100 to be mounted on a wall or the like. have.

The pedestal 110 is coupled to the bottom of the housing 100 to be described later, as shown in FIG.

Detailed description thereof will be described later.

The support frame 200 is disposed in a pair in parallel in the vertical direction on both sides of the upper surface of the pedestal 110.

That is, the support frame 200 is spaced at regular intervals as shown in Figures 2 to 5 are disposed in the vertical direction on the upper surface of the pedestal 110.

The support frame 200 is coupled to the lifting means 700 as described later to support the bracket 300 to the lifting movement.

Accordingly, the support frame 200 is formed in a "c" shape with an opening 201 open to the rear in cross section as shown in FIG.

Detailed description thereof will be described later.

The bracket 300 is slidably coupled to move up and down along the support frame 200 between the support frames 200.

The bracket 300, the support 310, the first guide roller 320 and the second guide roller 330 is mounted.

The support 310 is coupled to the seesaw movement of the main link 400 by the first hinge 311 as shown in Figures 2, 7 and 9.

The first guide roller 320 is mounted on both left and right sides so as to be spaced apart in the vertical direction in front of the bracket 300 as shown in FIGS. 2, 4, and 6.

The first guide roller 320 is rotated in contact with the outer periphery of the front of the support frame 200, while preventing the bracket 300 from flowing to the rear when sliding movement along the support frame 200. , Make sure sliding is good.

The second guide roller 330 is mounted on the left and right sides of the bracket 300 to be spaced apart in the vertical direction at the rear of the bracket 300 and disposed at the rear of the support frame 200.

That is, the first guide roller 320 and the second guide roller 330 are installed to support the front and rear of the support frame 200, so that the bracket 300 is up and down along the support frame 200. Make the lifting movement in the direction well.

In this case, as shown in FIG. 6, the second guide roller 330 is integrally formed with the first roller part 331 and the second roller part 332.

The first roller part 331 is in contact with the front end of the opening 201 of the support frame 200.

The first roller part 331 is in contact with the front and rear surfaces of the support frame 200 when the bracket 300 moves up and down together with the first guide roller 320. Prevents flow back and forth.

As shown in FIG. 6, the second roller part 332 protrudes from the front surface of the first roller part 331 so as to contact the outer circumference of the inner surface of the opening 201 and rotate.

That is, during the lifting movement of the bracket 300 by the lifting means 700, the outer circumference of the first guide roller 320 is rotated in contact with the front surface of the support frame 200, the second guide roller 330 is the first roller portion 331 is in contact with the front end of the opening portion 201, the second roller portion 332 is rotated in contact with the outer circumference of the inner surface of the opening portion (201).

As such, the second guide roller 330 is integrally formed with the first roller part 331 and the second roller part 332, so that the bracket 300 is supported by the lifting means 700. The bracket 300 is prevented from flowing forward and backward by the first guide roller 320 and the first roller part 331 during the lifting and lowering movement along the frame 200, and the second roller. It is prevented to flow in the left and right by the portion 332.

The main link 400 is coupled to the bracket 300, and the display (T) is mounted on the front end as shown in FIG.

As shown in FIGS. 7 and 9, the main link 400 is rotatably hinged to the support 310 of the bracket 300 by the first hinge 311 to perform a seesaw motion.

The main link 400 is to adjust the viewing angle of the display (T) by the angle adjusting means 500 and the balancing member 600 to be described later.

The angle adjusting means 500 is mounted to the bracket 300 as shown in FIGS. 7 to 9 to move the main link 400 around the first hinge 311.

The angle adjusting means 500 includes a first rack gear 510, a first pinion gear 520 and a second motor 530.

The first rack gear 510 is formed in a fan shape as shown in FIGS. 8 and 9 and is mounted to the rear of the main link 400.

The first pinion gear 520 is mounted to the bracket 300 to be engaged with the first rack gear 510 as illustrated in FIGS. 8 and 9.

In addition, the second motor 530 is mounted to the bracket 300 to rotate the first pinion gear 520.

When the second motor 530 rotates, the main link 400 moves by the first pinion gear 520 and the first rack gear 510 about the first hinge 311. While controlling the viewing angle of the display (T) mounted on the front end of the main link 400.

As such, the angle adjusting means 500 includes the first rack gear 510, the first pinion gear 520, and the second motor 530, thereby rotating the second motor 530. The viewing angle of the display T can be easily adjusted.

Unlike the present embodiment, the angle adjusting means 500 may allow the viewing angle of the display T to be adjusted through other known techniques.

The balancing member 600 is mounted on the rear end of the main link 400 to balance the balance of the weight of the display T.

That is, the balancing member 600 is loaded while the main link 400 is moved forward with respect to the first hinge 311 by the weight of the display T mounted at the front end of the main link 400. Balance this to prevent eccentricity forward.

As such, by balancing the balance member 600 to prevent the center of gravity from being moved forward by the weight of the display T, the angle can be stably adjusted by the angle adjusting means 500, It can be prevented from falling forward by the load of the display T.

The balancing member 600 includes a weight member 610, a guide rod 620, a connecting rope 630, and a guide roller 640, as shown in FIGS. 7 to 9.

The weight member 610 is formed in the guide hole 611 penetrating in the vertical direction is disposed in the rear lower portion of the bracket 300 as shown in Figs.

The weight member 610 is made of a weight corresponding to the weight of the display (T).

The guide hole 611 guides the weight member 610 when the guide rod 620 to be described later is inserted and the weight member 610 moves up and down by the lifting means 700.

As shown in FIG. 3, the guide rod 620 is mounted on the pedestal 110 and the upper end is mounted on the housing 100.

The guide rod 620 is the weight member 610 is inserted through the guide hole 611 when the lifting movement of the bracket 300 by the lifting means 700, of the weight member 610 Guide your lift.

7 and 9, one end of the connection rope 630 is mounted to the rear end of the main link 400, and the other end of the connection rope 630 is mounted to the upper portion of the weight member 610.

That is, the connection rope 630 serves to connect the rear end of the weight member 610 and the main link 400.

In addition, the connection rope 630, as described above, when the seesaw movement of the main link 400 by the angle adjusting means 500, even if the rear end of the main link 400 moves in the front and rear directions The member 610 does not move forward and backward.

In addition, the weight member 610 is disposed below the bracket 300 to reduce the overall volume.

That is, when the weight member 610 is directly coupled to the rear end of the main link 400, the width increases in the front-rear direction, but as shown in Figure 3 the weight member 610 of the bracket 300 The rear end portion may be connected to the connecting rope 630 so as to be disposed at a lower end thereof to reduce the width in the front and rear directions.

The guide roller 640 is mounted to the bracket 300 as shown in FIGS. 7 to 9 to guide the connecting rope 630.

That is, the guide roller 640 guides the connecting rope 630 to move up and down of the weight member 610 according to the angle adjustment of the main link 400 by the angle adjusting means 500. Prevents front and rear flow of the member 610.

More specifically, the guide roller 640 is the weight member 610 when the main link 400 is positioned horizontally and when the main link 400 is positioned to be inclined downward in accordance with the seesaw movement of the main link 400 The guide roller 640 guides the connection rope 630 to prevent the weight member 610 from moving up and down, but prevents it from moving forward and backward. .

As such, by mounting the guide roller 640 for guiding the connecting rope 630, it prevents the front and rear movement of the weight member 610 by the seesaw movement of the main link 400 to be different from the weight member 610 It is possible to reduce the front and rear width by preventing the collision and interference between the components, and also, the weight member 610 makes the lifting movement smoothly along the guide rod 620.

And by mounting the guide rod 620, during the lifting movement of the weight member 610 by the elevating means 700, the weight member 610 is smoothly moving up and down without moving back and forth left and right Make it happen.

The lifting means 700 lifts and lowers the bracket 300 and the main link 400 along the support frame 200.

The lifting means 700 is composed of a main shaft 710, a main sprocket 720, a driven sprocket 730, a chain 740 and the first motor 750.

As shown in FIGS. 3 and 5, the main shaft 710 protrudes from both sides of the support frame 200 under the support frame 200.

The main sprocket 720 is mounted at both ends of the main shaft 710.

That is, the main sprocket 720 is mounted to be located on both outer sides of the lower side of the pair of the support frame 200, as shown in Figs.

The driven sprocket 730 is mounted on the upper outer side of the support frame 200 to correspond to the main sprocket 720 as shown in FIGS. 2 to 5.

The driven sprocket 730 is to adjust the tension of the chain 740 to be described later by mounting a tension adjusting unit 731 on the upper portion of the support frame 200 as shown in Figures 2 to 5. desirable.

The chain 740 is mounted to the main sprocket 720 and the driven sprocket 730 as shown in FIG.

And the chain 740 is mounted to the rear end of the bracket 300 described above.

As shown in FIG. 5, the first motor 750 is mounted between the support frames 200 to rotate the main shaft 710.

When the first motor 750 is rotated, the main shaft 710 is rotated to rotate the chain sprocket 720 and the chain 740 mounted on the driven sprocket 730, thereby As a result, the bracket 300 coupled to one side of the chain 740 moves upward and downward.

As described above, the elevating means 700 includes the main shaft 710, the main sprocket 720, the driven sprocket 730, the chain 740, and the first motor 750. As the chain 740 rotates by the rotation of the motor 750, the bracket 300 and the main link 400 are moved up and down along the support frame 200.

In addition, by allowing the chain 740 to move up and down, it is possible to smoothly move up and down, minimizing the occurrence of trouble, such as dust accumulated.

As shown in FIG. 1, the housing 100 has a long hole 101 through which the main link 400 protrudes and slides, and a lower end thereof is fixed to the pedestal 110.

In this embodiment, the body plate 120 surrounding the housing 100, the front plate 130 is formed in front of the body plate 120, the long hole 101 is formed, and block the upper The cover plate 140 was made.

Unlike the present embodiment, the housing 100 may be integrally formed or, if necessary, the body plate 120 may be separated into a side plate and a back plate to be coupled to each other.

The housing 100 prevents dust or the like from entering a component disposed therein.

Installation holes 121 are formed at left and right sides of the housing 100 to couple the speaker exposure means 800, 900, 80, and 90 to which the speaker S is coupled.

Detailed description thereof will be described later.

The shielding means is mounted to the long hole 101 on the front plate to block the long hole 101.

That is, the shielding means prevents dust or the like from entering the housing 100 through the long hole 101 by blocking a portion except the main link 400 protruding into the long hole 101.

The speaker exposing means 800, 900, 80, 90 allow the speaker S to enter or protrude out of the housing 100.

That is, the speaker exposing means 800, 900, 80, 90 protrudes the speaker S from the installation hole 121 of the housing 100 when the display T is used, and the housing 100 when not in use. ) To the inside of the

The speaker exposure means (800, 900, 80, 90) consists of four embodiments.

First, the speaker exposure means 800 is a sliding member 810, guide groove 820, guide protrusion 830, the second rack gear 840, the second pinion, as shown in Figs. The gear 850 includes a third motor 860, a sensor unit, and a controller.

The sliding member 810 in which the speaker S is installed is slid into and out of the housing 100 through the installation hole 121 of the housing 100 as shown in FIG. 10.

The sliding member 810 includes a guide installation groove 811, a speaker installation groove 812, and a cover 813 as shown in FIGS. 13 to 15.

The guide installation groove 811 is opened toward the housing 100 to mount the second rack gear 840 and the guide groove 820 or the guide protrusion 830 which will be described later.

The speaker installation groove 812 is formed at the side of the guide installation groove 811 and the speaker S is installed.

That is, the speaker installation groove 812 is formed at the side of the guide groove 820 so that the speaker S faces the front, that is, the viewer.

As such, the second rack gear 840 and the guide groove 820 or the guide protrusion 830 are installed in the guide installation groove 811, and the speaker S is installed in the speaker installation groove 812. As a result, the rack gear, the guide groove 820 or the guide protrusion 830 and the speaker S are not exposed to the outside of the sliding member 810 to prevent contamination by dust or the like.

The speaker (S) is coupled to the speaker installation groove 812 in the vertical direction.

In addition, a protective plate 812a may be installed on the front surface of the speaker installation groove 812 to protect the speaker S. If necessary, the protective film may not be installed. have.

As the speaker S is slid to the speaker installation groove 812 in the vertical direction as described above, the speaker S coupled to the sliding member 810 is easily separated while preventing the speaker S from detaching forward. Can be installed.

The cover 813 is mounted on the upper and lower surfaces of the sliding member 810 to block the upper and lower surfaces of the guide installation groove 811 and the speaker installation groove 812.

That is, the cover 813 blocks the upper and lower surfaces of the sliding member 810 opened by the guide installation grooves 811 and the speaker installation grooves 812, thereby preventing dust from entering and sliding. Prevent the speaker (S) from falling to the bottom.

The sliding member 810 formed as described above is protruded to the outside of the housing 100, as shown in FIGS. 10 and 15 (a), and the front rear side and the cover 813 of the sliding member 810. The installation hole 121 is blocked by the side, and as shown in FIGS. 11 and 15 (b) when the side of the sliding member 810 is entered into the housing 100 is the installation hole 121 ) Will be blocked.

As such, the sliding member 810 blocks the installation hole 121, thereby preventing dust or the like from flowing into the housing 100 through the installation hole 121.

The sliding member 810 may be formed in various shapes, unlike the present embodiment.

The guide groove 820 is formed in the sliding member 810.

More specifically, the guide groove 820 is formed in the guide installation groove 811 of the sliding member 810 as shown in FIGS. 12 to 14.

The guide protrusion 830 is coupled to the guide groove 820 and is formed in the housing 100 to slide along the guide groove 820.

Unlike this, the guide groove 820 and the guide protrusion 830 may be formed to face each other.

The second rack gear 840 is mounted in the sliding member 810 in the direction of the housing 100.

That is, the second rack gear 840 is mounted in the direction of the housing 100 in the guide installation groove 811 of the sliding member 810 as shown in FIGS. 12 to 15.

In addition, the second pinion gear 850 is installed on the fixed plate 890 fixed to the housing 100 to engage with the second rack gear 840.

The third motor 860 is mounted on the fixed plate 890 to rotate the second pinion gear 850.

As the third motor 860 rotates, as shown in FIG. 15, the second pinion gear 850 rotates to move the second rack gear 840 to move the sliding member 810 to the guide groove. Guided to the 820 and the guide protrusion 830, and slides into or out of the housing 100 through the installation groove.

As such, the speaker exposure means 800 includes the sliding member 810, the guide groove 820, the guide protrusion 830, the second rack gear 840, the second pinion gear 850, and the third motor. 860, the speaker S may protrude to the outside of the housing 100 when using the speaker S, and when not in use, enters the inside of the housing 100 to expose the outside. Do not become.

The sensor unit detects on and off of the display T.

The controller (not shown) controls the third motor 860 by a signal of the sensor unit.

The controller (not shown) controls the third motor 860 to protrude the speaker S to the outside of the housing 100 when the display T is turned on by a signal of the sensor unit. When the display T is turned off by the signal of the sensor unit, the third motor 860 is controlled to enter the speaker S into the housing 100.

As described above, the controller S protrudes to the outside of the housing 100 or enters the inside according to the power state of the display T by the controller.

And if necessary, as shown in Figure 12 is equipped with a position sensor 814 for detecting the position of the sliding member 810 and the speaker (S) into the interior of the housing 100, It is possible to detect the protruding position to the outside of the housing 100.

Second, the speaker exposure means 900 is a rotating member 910, driven gear 920, the main gear 930, the fourth motor 940, the sensor unit and the control unit as shown in Figs. It includes.

The rotating member 910 is hinged to the housing 100 to open and close the installation hole 121 and the speaker S is mounted.

The rotating member 910 protrudes the speaker S to the outside of the housing 100 or enters the inside of the housing 100 as shown in FIGS. 16 and 17 by rotation.

The rotating member 910 includes a first blocking plate 911, a second blocking plate 912, a speaker installation groove 913, and a hinge shaft 914 as shown in FIGS. 18 to 20.

The first blocking plate 911 opens and closes the installation hole 121 as shown in FIG. 20.

More specifically, the first blocking plate 911 closes the installation hole 121 when the speaker S enters the inside of the housing 100 as shown in FIG. 20 (a).

The second blocking plate 912 closes the installation hole 121 when the speaker S protrudes out of the housing 100.

That is, the second blocking plate 912 is formed to be spaced apart from the first blocking plate 911 by a predetermined angle, as shown in Figure 20, the first blocking plate 911 is the installation hole 121 When opening the second blocking plate 912 closes the installation hole 121.

More specifically, the second blocking plate 912 blocks the installation hole 121 when the speaker S protrudes out of the housing 100 as shown in FIG. 20 (b).

As such, the first blocking plate 911 and the second blocking plate 912 close the installation hole 121 regardless of whether the speaker S is located outside or inside the housing 100. , Dust and the like is prevented from entering the interior of the housing 100 through the installation hole 121.

The speaker installation groove 913 is formed to be opened to the first blocking plate 911 to the front when the second blocking plate 912 closes the installation hole 121, the speaker (S) is mounted. .

The speaker S is coupled to the speaker installation groove 913 in the vertical direction.

In addition, a protective plate 913a may be installed on the front surface of the speaker installation groove 913 to protect the speaker S. If necessary, the protective plate 913a may be installed. You may not.

As such, the speaker S is slidably coupled to the speaker installation groove 913 in the vertical direction, thereby easily preventing the speaker S coupled to the rotating member 910 from moving forward. Can be installed.

And the upper and lower surfaces of the speaker installation groove 913, as shown in Figures 18 and 19, it is preferable to block the cover 915 so that dust or the like does not fall while the inserted speaker (S).

As shown in FIGS. 18 and 19, the hinge shaft 914 is formed on the upper and lower surfaces of the first blocking plate 911 and the second blocking plate 912 to install the housing 100. The hinge is coupled to the rear upper and lower surfaces of the ball 121.

As the rotating member 910 rotates by the hinge shaft 914, the first blocking plate 911 and the second blocking plate 912 selectively select the installation hole 121 of the housing 100. To prevent it.

That is, the rotating member 910 is rotated about the hinge shaft 914 so that the speaker installation groove 913 is the housing 100 through the installation hole 121 as shown in Figure 20 (a). The first blocking plate 911 closes the installation hole 121 when it enters the inside, and the speaker installation groove 913 is the installation hole 121 as shown in FIG. 20 (b). The second blocking plate 912 closes the installation hole 121 when protruded to the outside of the housing 100 through the through hole.

The driven gear 920 is mounted to the hinge coupling portion of the rotating member 910.

That is, the driven gear 920 is mounted to the hinge shaft 914 formed under the rotating member 910 as shown in FIG.

The main gear 930 is mounted to the housing 100 to be engaged with the driven gear 920.

The fourth motor 940 is mounted to the housing 100 to rotate the main gear 930.

As shown in FIG. 20 through the installation hole 121, the speaker S mounted on the rotating member 910 is rotated by the rotation of the fourth motor 940. As it enters into the housing 100 or protrudes to the outside.

As such, the speaker exposure means 900 includes the rotating member 910, the driven gear 920, the main gear 930, and the fourth motor 940. When the speaker S is used, the rotating member is used. Rotate the 910 to the outside of the housing 100 to hear the sound, when not in use to rotate the rotating member 910 in the opposite direction to enter the interior of the housing 100 Do not expose to the outside.

The sensor unit (not shown) senses the on and off of the display T.

The controller (not shown) controls the fourth motor 940 by a signal of the sensor unit.

The controller (not shown) controls the fourth motor 940 to protrude the speaker S to the outside of the housing 100 when the display T is turned on by the signal of the sensor unit. When the display T is turned off by the signal of the sensor unit, the fourth motor 940 is controlled to enter the speaker S into the housing 100.

And, if necessary, as shown in Figure 19 equipped with a position sensor 916 for detecting the position of the rotating member 910, the speaker (S) entered the interior of the housing 100, or the housing It is desirable to know that it protrudes out of the (100).

Third, as shown in FIGS. 21 to 26, the speaker exposure means 80 includes a sliding member 81, a guide groove 82, a guide protrusion 83, a sixth rack gear 84, and a sixth. Includes pinion gear (85), sixth motor (86), sensor unit and control unit.

As shown in FIGS. 21 and 22, the sliding member 81 is formed in a “c” shape open in the direction of the housing 100 so that the housing (eg, through the installation hole 121 of the housing 100). Sliding in and out of 100).

The sliding member 81 includes a guide installation groove 81a, a speaker installation hole 81b, and a cover 81c as shown in FIGS. 23 to 26.

The guide installation groove 81a is opened in the housing 100 and is mounted with the sixth rack gear 84 and the guide groove 82 or the guide protrusion 83 to be described later.

The speaker installation hole 81b is formed at the side of the sliding member 81.

In more detail, the speaker installation hole 81b is formed in the sliding member 81 in the opposite direction of the housing 100.

That is, the speaker installation hole 81b is formed to face the side of the housing 100.

The speaker installation hole 81b is mounted with the speaker S as shown in FIGS. 23 to 26.

In the present embodiment, two speaker installation holes 81b are formed on the side surface of the sliding member 81 so as to be spaced apart in the vertical direction. However, unlike the present embodiment, a plurality of speaker installation holes 81b may be formed.

The cover 81c is mounted on the upper and lower surfaces of the sliding member 81 to block the upper and lower surfaces of the guide installation groove 81a.

That is, the cover 81c blocks the upper and lower surfaces of the sliding member 81 opened by the guide installation groove 81a to prevent dust or the like from entering.

The sliding member 81 formed as described above is a front rear side and the cover 81c of the sliding member 81 when protruded to the outside of the housing 100 as shown in FIGS. 21 and 26 (b). The installation hole 121 is blocked, and as shown in FIGS. 22 and 26 (a), the side surface of the sliding member 81, ie, the speaker installation hole, is entered into the housing 100. A side surface 81b is formed to block the installation hole 121.

As such, the sliding member 81 blocks the installation hole 121, thereby preventing dust or the like from flowing into the housing 100 through the installation hole 121.

The guide groove 82 is formed in the sliding member 81.

More specifically, the guide groove 82 is formed in the guide installation groove 81a of the sliding member 81 as shown in FIGS. 23 to 26.

The guide protrusion 83 is coupled to the guide groove 82 and is formed on the fixing plate 89 of the housing 100 to slide along the guide groove 82.

Alternatively, the guide groove 82 and the guide protrusion 83 may be formed to be opposite to each other.

The sixth rack gear 84 is mounted in the direction of the housing 100 from the sliding member 81.

That is, the sixth rack gear 84 is mounted in the direction of the housing 100 in the guide installation groove 81a of the sliding member 81 as shown in FIGS. 23 to 25.

The sixth pinion gear 85 is installed on the fixing plate 89 fixed to the housing 100 to engage with the second rack gear.

The sixth motor 86 is mounted to the fixed plate 89 to rotate the sixth pinion gear 85.

When the sixth motor 86 rotates, as shown in FIG. 26, the sixth pinion gear 85 rotates to move the sixth rack gear 84 to move the sliding member 81 to the guide groove. Guided to the 82 and the guide protrusion 83 and slides into or out of the housing 100 through the installation hole 121.

As such, the speaker exposure means 80 includes the sliding member 81, the guide groove 82, the guide protrusion 83, the sixth rack gear 84, the sixth pinion gear 85, and the sixth motor. When the speaker S is used, the speaker S may protrude to the outside of the housing 100 so that a sound can be heard, and when not in use, the speaker S may be exposed to the side of the housing 100 and exposed to the outside. Do not become.

The sensor unit detects on and off of the display T.

The controller (not shown) controls the sixth motor 86 by a signal of the sensor unit.

The control unit (not shown) controls the sixth motor 86 when the display T is turned on by the signal of the sensor unit to protrude the speaker S to the outside of the housing 100. When the display T is turned off by the signal of the sensor unit, the sixth motor 86 is controlled to closely contact the speaker S to the side of the housing 100.

As described above, the controller S protrudes to the outside of the housing 100 or closely adheres to the side surface of the display T according to the power state of the display T.

If necessary, as shown in FIGS. 24 and 25, a position detecting sensor 87 that detects the position of the sliding member 81 is mounted so that the speaker S is in close contact with the side of the housing 100. The position and the projecting position to the outside of the housing 100 can be detected.

Fourth, the speaker exposure means 90 is a rotating member 91, driven gear 92, main gear 93, the seventh motor 94, the sensor unit and the control unit as shown in Figs. It includes.

The rotating member 91 is hinged to the housing 100 to open and close the installation hole 121 and to enter or protrude the speaker S into the housing 100.

That is, the rotating member 91 protrudes the speaker S to the outside of the housing 100 or enters the inside of the housing 100 as shown in FIGS. 27 and 28 by rotation.

As shown in FIGS. 29 to 31, the rotating member 91 may include a first blocking plate 91a, a second blocking plate 91b, a front plate 91c, a speaker installation hole 91d, and a hinge shaft ( 91e).

The first blocking plate 91a opens and closes the installation hole 121 as shown in FIG. 31.

More specifically, the first blocking plate 91a closes the installation hole 121 when the speaker S enters the inside of the housing 100, as shown in FIG. 31 (a).

The second blocking plate 91b closes the installation hole 121 when the speaker S protrudes out of the housing 100.

That is, the second blocking plate 91b is formed to be spaced apart from the first blocking plate 91a at a predetermined angle, as shown in FIG. 31, and the first blocking plate 91a is installed in the installation hole 121. When opening the second blocking plate (91b) closes the installation hole 121.

More specifically, the second blocking plate 91b blocks the installation hole 121 when the speaker S protrudes out of the housing 100 as shown in FIG. 31 (b).

As such, the first blocking plate 91a and the second blocking plate 91b close the installation hole 121 regardless of whether the speaker S is located outside or inside the housing 100. , Dust and the like is prevented from entering the interior of the housing 100 through the installation hole 121.

The front plate 91c is formed on the front surface of the first blocking plate 91a and the second blocking plate 91b which are formed to be spaced apart at a uniform angle as shown in FIGS. 27 to 31.

That is, the front plate 91c is formed together with the first membrane plate 91a and the second membrane plate 91b so that the inside of the first membrane plate 91a and the second membrane plate are formed in an empty triangle in cross section. It is formed in front of 91b.

The speaker installation hole 91d is formed in the front plate 91c.

The speaker S is mounted to the speaker installation hole 91d.

In addition, a protective plate 91f may be installed on the front surface of the front plate 91c to protect the speaker S mounted in the speaker installation hole 91d, as necessary. May not install the protective plate 91f.

The upper and lower surfaces of the inner space formed by the front plate 91c, the first membrane plate 91a, and the second membrane plate 91b are disposed in the interior space as shown in FIGS. 29 and 30. It is preferable to prevent the inflow with the cover 91g.

As shown in FIGS. 29 and 30, the hinge shaft 91e is formed on the upper and lower surfaces of the first blocking plate 91a and the second blocking plate 91b to install the housing 100. The hinge is coupled to the rear upper and lower surfaces of the ball 121.

As the rotating member 91 rotates by the hinge shaft 91e, the first blocking plate 91a and the second blocking plate 91b selectively select the installation hole 121 of the housing 100. To prevent it.

That is, the front plate 91c formed with the speaker installation hole 91d is rotated about the hinge shaft 91e and the installation member 121 is formed as shown in FIG. The first blocking plate 91a closes the installation hole 121 when the inside of the housing 100 enters through), and the speaker installation hole 91d as shown in FIG. 31 (b). When the formed front plate 91c protrudes out of the housing 100 through the installation hole 121, the second blocking plate 91b closes the installation hole 121.

The driven gear 92 is mounted to the hinge coupling portion of the rotating member 91.

That is, the driven gear 92 is mounted to the hinge shaft 91e formed at the bottom of the rotating member 91 as shown in FIG.

The main gear 93 is mounted to the housing 100 to be engaged with the driven gear 92.

The seventh motor 94 is mounted to the housing 100 to rotate the main gear 93.

As the rotary member 91 rotates by the rotation of the seventh motor 94, the speaker S mounted on the rotary member 91 is shown in FIG. 31 through the installation hole 121. As it enters into the housing 100 or protrudes to the outside.

The sensor unit (not shown) senses the on and off of the display T.

The controller (not shown) controls the seventh motor 94 by a signal of the sensor unit.

The controller (not shown) controls the seventh motor 94 to protrude the speaker S to the outside of the housing 100 when the display T is turned on by the signal of the sensor unit. When the display T is turned off by the signal of the sensor unit, the seventh motor 94 is controlled to enter the speaker S into the housing 100.

If necessary, as shown in FIG. 30, the speaker S is inserted into the housing 100 by mounting the position detecting sensor 95 for detecting the position of the rotating member 91, or the housing 100. It is desirable to know that it protrudes out of the (100).

The display position adjusting device using the chain of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the scope of the technical idea of the present invention.

The display position adjusting device using the chain of the present invention allows the lifting movement to be made more smoothly using the chain when the lifting movement is carried out while the display is mounted.

Claims

Pedestal 110; A pair of support frames 200 disposed parallel to and fixed to the left and right sides of the upper surface of the pedestal 110 in a vertical direction; A bracket 300 which is slidably coupled to move up and down along the support frame 200 between the support frames 200; A main link 400 rotatably coupled to the bracket 300 in a vertical direction and having a display T mounted at one end thereof; Lifting means (700) for lifting and lowering the bracket (300) and the main link (400) along the support frame (200); The main link 400 is protruded on the front surface is formed with a long hole 101 is sliding, the lower end of the housing 100 is fixed to the pedestal 110;

The lifting means 700 is rotatably supported at the lower portion of the pair of support frames 200, the main shaft 710 is mounted so that both ends protrude to both sides of the support frame 200; A pair of main sprockets 720 mounted to both ends of the main shaft 710; A pair of driven sprockets 730 rotatably mounted on an upper outer side of each of the support frames 200 to correspond to the main sprocket 720; A pair of chains 740 which are walked on the main sprocket 720 and the driven sprocket 730, on which one side of the bracket 300 is fixed; And a first motor (750) mounted between the support frames (200) to rotate the main shaft (710).
The method of claim 1, wherein the support frame 200 is made of a "C" shape formed with an opening 201 opened rearward in cross section,

The bracket 300 is mounted on both left and right sides spaced apart in the vertical direction in front of the first guide roller 320 is rotated in contact with the outer periphery of the front of the support frame 200, and the left and right spaced apart in the vertical direction at the rear Second guide rollers 330 mounted on both sides and disposed at the rear of the support frame 200;

The second guide roller 330 protrudes from the front end of the first roller part 331 and the front surface of the first roller part 331 in contact with an end of the opening 201 of the support frame 200. The second roller portion 332 which is rotated in contact with the outer circumference is formed integrally on the inner surface of the opening 201,

During the lifting movement of the bracket 300 by the lifting means 700, the outer periphery of the first guide roller 320 rotates in contact with the front surface of the support frame 200, the second guide roller 330 The first roller portion 331 is in contact with the front end of the opening portion 201, while the second roller portion 332 is rotated in contact with the outer periphery of the inner surface of the opening portion 201 the bracket ( Display position control device using a chain, characterized in that for preventing the flow of 300).
According to claim 1, The bracket 300 is formed with a support 310 protruding forward, the main link 400 is rotatably hinged to the support 310 by a first hinge 311 Seesaw exercise,

An angle adjusting means (500) mounted on the bracket (300) to seesaw the main link (400) around the first hinge (311);

And a balancing member (600) mounted on the rear end of the main link (400) to balance the weight of the display (T).
The method according to claim 3, wherein the angle adjusting means 500 is formed in a fan shape of the first rack gear 510 fixed to the rear of the main link 400 and the first rack gear 510 to engage with the A first pinion gear 520 mounted to the bracket 300 and a second motor 530 mounted to the bracket 300 to rotate the first pinion gear 520,

When the second motor 530 rotates, the main link 400 is seesawed by the first pinion gear 520 and the first rack gear 510 about the first hinge 311. Display position adjusting device using a chain, characterized in that for adjusting the viewing angle of the display (T).
The method of claim 3, wherein the balancing member 600 is formed with a guide hole 611 penetrating in the vertical direction, the weight member 610 disposed in the rear lower portion of the bracket 300, the lower end is the pedestal 110 The upper end is mounted to the housing 100 is inserted into the guide hole 611 is guide rod 620 for guiding the weight member 610, one end is mounted to the rear end of the main link 400 And the other end includes a connection rope 630 mounted on the upper portion of the weight member 610 and a guide roller 640 mounted on the bracket 300 to guide the connection rope 630.

The guide roller 640 guides the connecting rope 630 to move up and down the weight member 610 according to the angle adjustment of the main link 400 by the angle adjusting means 500, the weight member ( 610 to prevent flow before and after,

The guide rod 620 is a display position adjusting device using a chain, characterized in that for guiding the weight member 610 in the up and down direction during the lifting movement of the weight member 610 by the lifting means (700).
According to any one of claims 1 to 5, Left and right sides of the housing 100 is provided with the installation hole 121 is located the speaker (S),

And a speaker exposing means (800,900) for entering the speaker (S) into the housing (100) or protruding outwards.
The method of claim 6, wherein the speaker exposure means 800,

Sliding member 810, the inside and outside of the housing 100 through the installation hole 121, the speaker S is mounted, the guide groove 820 is formed, the second rack gear 840 is provided. )Wow;

A fixing plate 890 fixed to the housing 100 and provided with a guide protrusion 830 sliding in the guide groove 820 and a second pinion gear 850 engaged with the second rack gear 840;

And a third motor 860 mounted to the fixed plate 890 to rotate the second pinion gear 850.

The second pinion gear 850 interlocks the second rack gear 840 by driving the third motor 860 so that the sliding member 810 on which the speaker S is mounted is the installation hole 121. Display position adjusting device using a chain, characterized in that the outgoing to the inside and the outside of the housing 100 through.
The method according to claim 7, wherein the sliding member 810,

A guide installation groove 811 opening in the housing 100 direction and provided with the second rack gear 840 and the guide groove 820;

A speaker installation groove 812 formed at a side of the guide installation groove 811 and installed with a speaker S;

A cover 813 mounted to the top and bottom surfaces of the sliding member 810 to block the top and bottom surfaces of the guide installation groove 811 and the speaker installation groove 812; Consisting of,

When the sliding member 810 protrudes out of the housing 100, the installation hole 121 is closed by the front, rear, side, and cover 813 of the sliding member 810,

Display side adjusting device using a chain, characterized in that the side of the sliding member 810 when the sliding member 810 enters the interior of the housing 100 to close the installation hole 121.
The apparatus of claim 8, wherein the speaker S is slidably coupled upward and downward in the speaker installation groove 812.
The method of claim 6, wherein the speaker exposure means 900,

A rotating member 910 hinged to the housing 100 to open and close the installation hole 121 and to which the speaker S is mounted;

A driven gear 920 mounted to the hinge coupler of the rotating member 910;

A main gear 930 mounted to the housing 100 so as to be engaged with the driven gear 920;

And a fourth motor 940 mounted to the housing 100 to rotate the main gear 930.

The rotating member 910 is rotated by the driving of the fourth motor 940 so that the speaker S mounted on the rotating member 910 enters the housing 100 through the installation hole 121. Display positioning device using a chain, characterized in that the protruded or to the outside.
The method according to claim 10, The rotating member 910,

A first blocking plate (911) for closing the installation hole (121) when the speaker (S) is provided with a speaker installation groove (913) installed therein so that the speaker (S) enters the housing (100);

A second blocking plate 912 for closing the installation hole 121 when the speaker S protrudes out of the housing 100;

The hinge shaft 914 is formed on the upper and lower surfaces of the first blocking plate 911 and the second blocking plate 912 to be hinged to the rear upper and lower surfaces of the installation hole 121 of the housing 100. ); Consisting of

The first sound blocking plate 911 when the rotating member 910 is rotated about the hinge shaft 914 so that the speaker S enters the housing 100 through the installation hole 121. The installation hole 121 is closed, and the second blocking plate 912 is installed in the installation hole 121 when the speaker S protrudes out of the housing 100 through the installation hole 121. Display position control device using a chain, characterized in that for closing the.
The method of claim 11, wherein the speaker installation groove 913 is a speaker (S) is coupled to slide in the vertical direction,

Display position control device using a chain, characterized in that the cover 915 is fixed to prevent the separation of the speaker (S) on the upper and lower surfaces of the speaker installation groove (913).
The method according to claim 7 or 10,

A sensor unit configured to sense on and off of the display T;

A control unit controlling the third motor 860 or the fourth motor 940 by the signal of the sensor unit; Include more,

The controller protrudes the speaker S out of the housing 100 by controlling the third motor 860 or the fourth motor 940 when the display T is turned on by the signal of the sensor unit. When the power of the display T is turned off by the signal of the sensor unit, controlling the third motor 860 or the fourth motor 940 to enter the speaker S into the housing 100. Display position control device using a chain.