KR101644801B1

KR101644801B1 - A position control apparatus for a television receiver having a swing type speaker

Info

Publication number: KR101644801B1
Application number: KR1020150156795A
Authority: KR
Inventors: 강태욱
Original assignee: 주식회사 탑시스템; 강태욱
Priority date: 2015-11-09
Filing date: 2015-11-09
Publication date: 2016-08-03
Also published as: WO2017082572A1

Abstract

The present invention relates to an apparatus for controlling a display position with a rotational speaker for installing a speaker in a housing of a position control apparatus in order to output sound at a constant height even if the height of a display device is changed. Also, the present invention can prevent contamination inside the housing caused by dust from the outside by making the housing appeared according to the use of the speaker and by closing an installation hole of the housing, which the speaker is installed in, all the time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a position control apparatus,

The present invention relates to a display position adjusting device provided with a rotary type speaker, in particular, a speaker is mounted on a housing of a position adjusting device so that a sound can be outputted at a constant height despite the height change of the display, The present invention relates to a display position adjusting apparatus having a rotary speaker for preventing the interior of the housing from being contaminated due to inflow of dust from the outside by allowing the installation hole of the housing in and out of the housing to be always closed .

While watching TV is one of the main entertainment and information sources for people, watching TV for a long time at a fixed location makes the body uncomfortable, causing diseases such as periarticular inflammation of the scapula, back pain, spinal cord, and sciatica .

To solve these problems, we tried to make people enjoy TV programs rich and colorful.

Accordingly, in recent years, people can comfortably watch the TV by remotely or manually adjusting the height and time of the TV set according to the viewing angle at their own position, lying or sitting, in order to place the TV set in the optimum time, And a display position control device that meets the requirements that can be treated by using patients with the same disease and hospital bed.

The present inventor has patented a "TV receiver position control device" which is disclosed in Korean Patent Registration No. 10-0521359 and satisfies the above requirements as shown in Figs. 37 to 40. Fig.

This allows the viewer to move the TV set to a desired height so as to match the viewer's eye level according to the viewing posture and to view the TV set at a proper angle by adjusting the angle. The frame 1 is provided with a frame A moving block 20 which is supported movably in the up and down direction along the frame 10 and on which the TV receiver 200 is fixed and a moving block 20 for moving the moving block 20 up and down relative to the frame 10 And an angle adjusting means for adjusting the angle of the TV receiver 200 with respect to the moving block 20. [

Such a device can be moved to a desired height according to the eye level of a viewer of the TV receiver 200 by driving the screw driving motor and the rotary motor 500 forward and backward, Thereby enabling control by control.

However, since the distance from the viewer is changed according to the height of the TV receiver 200, the above-mentioned apparatus has a structure in which a speaker is mounted on the TV receiver 200, There is also a hassle to adjust.

In addition, since the screw 11 is exposed to the outside and the contamination speed due to foreign matter such as dust rapidly advances to the oil such as grease coated on the screw 11 due to static electricity by the TV receiver 200, There is a problem that the cleaning cycle is shortened.

Korea Patent No. 10-0521359

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a speaker in a housing of a position adjusting device for outputting sound at a predetermined height despite the change of the height of the display, And an object of the present invention is to provide a display position adjusting apparatus having a rotatable speaker for preventing the inside of the housing from being contaminated due to inflow of dust from the outside by allowing the mounting hole of the housing in and out of the housing to be closed at all times .

According to an aspect of the present invention, there is provided an elevator system including a pedestal, a vertical support vertically installed on the pedestal, a lift unit movably coupled to the vertical support, elevating means for lifting and lowering the elevation unit, An angle adjustment means for adjusting the angle of the display by pivoting the main link, and a slot for protruding and sliding the main link is formed on a front surface of the main link, And a housing having a lower end receiving the adjusting means and fixed to the pedestal,

A speaker for emitting a sound signal from the display is provided on both left and right sides of the housing,

An installation hole is formed in the housing so that the speaker can be projected and retracted,

And a loudspeaker protruding means for pivoting the loudspeaker to enter the inside of the housing or to project it to the outside,

The speaker appearance and appearance means comprises:

A front plate having a speaker mounting hole on which the speaker is mounted, and a first blocking plate and a second blocking plate are formed in a triangular tubular shape, and a hinge axis is formed at the upper and lower ends of the boundary of the first and second blocking plates A rotating member rotatably disposed on a housing inside the mounting hole; A driven gear coupled to either the upper end or the lower end of the hinge shaft; And a seventh motor fixed to the inside of the housing and having a driven gear meshing with the driven gear,

Wherein the first blocking plate closes the mounting hole when the rotating member rotates about the hinge axis and the front plate to which the speaker is coupled enters the inside of the housing via the mounting hole,

And the second clogging plate closes the installation hole when the front plate protrudes from the housing through the installation hole.

In addition, a grill-shaped shield plate through which the sound from the speaker passes is coupled to the front surface of the front plate, and a lid is coupled to the upper surface and the lower surface of the rotary member.

According to another aspect of the present invention, there is provided an elevator apparatus including a pedestal, a vertical support vertically installed on the pedestal, a lift unit movably coupled to the vertical support, elevating means for lifting and lowering the elevation unit, A main link rotatably coupled to the display and coupled to the display at an end thereof; an angle adjusting means for adjusting an angle of the display by pivoting the main link; a slot formed on the front surface to slide the main link, And a housing which receives the angle adjusting means and whose lower end is fixed to the pedestal,
A speaker for emitting a sound signal from the display is provided on both left and right sides of the housing,
An installation hole is formed in the housing so that the speaker can be projected and retracted,
And a loudspeaker protruding means for pivoting the loudspeaker to enter the inside of the housing or to project it to the outside,
The speaker appearance and appearance means comprises:

A driven gear mounted to the housing to engage with the driven gear; a driven gear mounted on the driven gear to engage with the driven gear; And a fifth motor mounted on the housing for rotating the main gear,

The rotary member includes a first blocking plate formed with a speaker mounting groove on which a speaker is installed to close the mounting hole when the speaker enters the housing, and a second blocking plate that closes the mounting hole when the speaker protrudes from the housing And a hinge shaft formed on an upper surface and a lower surface in contact with the first closure plate and the second closure plate and hinged to the lower surface and the lower surface of the installation hole of the housing,

The loudspeaker is slidably coupled to the speaker mounting groove in a vertical direction. A lid is fixed to the upper surface and the lower surface of the speaker mounting groove to prevent the speaker from being separated from the speaker mounting groove.

The first blocking plate closes the installation hole when the rotary member rotates about the hinge axis by driving the fifth motor and the speaker enters the housing through the installation hole, And the second blocking plate closes the installation hole when protruding from the housing through the hole.

In addition, the apparatus of the present invention may further include: a sensor unit for sensing on and off of the display; A control unit for controlling the fifth motor or the seventh motor by a signal of the sensor unit; Further comprising:

The control unit controls the fifth motor or the seventh motor to project the speaker to the outside of the housing when the power of the display is turned on by the signal of the sensor unit and when the power of the display is turned off by the signal of the sensor unit And the fifth motor or the seventh motor is controlled so that the speaker enters the inside of the housing.

First, by mounting the speaker S to the housing 100, it is possible to output a sound at a predetermined height despite the change of the height of the display T, thereby controlling the sound volume of the speaker according to the height of the TV receiver It also eliminates the hassle of having to work together.

In addition, by allowing the speaker to come into or out of the housing by means of the speaker appearance and dismounting means, that is, depending on whether the speaker is used or not, the installation hole of the housing in which the speaker is put in and out is always closed, Thereby preventing contamination of the inside of the housing.

Second, since the speaker is slidably coupled to the speaker installation groove in the up-and-down direction, it is possible to easily install the speaker while preventing the speaker coupled to the sliding member from being freely moved forward.

Thirdly, the control unit allows the loudspeaker to protrude to the outside of the housing or enter the interior of the housing according to the power state of the display, thereby facilitating opening and closing of the loudspeaker.

1 is a perspective view showing a configuration according to an embodiment of the present invention;
FIG. 2 and FIG. 3 are perspective views of one side and the other side, respectively, showing a configuration except for a housing in an embodiment of the present invention;
FIG. 4 is a side view showing a configuration except for a housing in an embodiment of the present invention. FIG.
FIGS. 5 and 6 are perspective views of an angle adjusting means, an auxiliary bracket and a balancing member according to a first embodiment of the angle adjusting means according to an embodiment of the present invention.
7 is a side view of an angle adjusting means, an auxiliary bracket and a balancing member according to a first embodiment of the angle adjusting means in an embodiment of the present invention.
FIG. 8 and FIG. 9 are perspective views of one side and the other of the angle adjusting means, the auxiliary bracket and the balancing member according to the second embodiment of the angle adjusting means in the embodiment of the present invention. FIG.
FIG. 10 and FIG. 11 are a perspective view of one side and the other side showing the construction of an auxiliary bracket and a guide tube according to an embodiment of the present invention; FIG.
FIG. 12 is a perspective view showing a combined state of a lifting unit and a screw in an embodiment of the present invention; FIG.
Fig. 13 is a plan sectional view taken on the basis of the supporting roller in Figs. 10 and 11. Fig.
Fig. 14 is a plan sectional view taken on the basis of protrusions in Figs. 10 and 11. Fig.
FIG. 15 is a perspective view showing a sliding member protruding from a housing according to the first embodiment of the speaker appearance / dismounting means in an embodiment of the present invention; FIG.
16 is a perspective view showing a state in which a sliding member is introduced into a housing according to the first embodiment of the speaker appearance / dismounting means in an embodiment of the present invention.
FIG. 17 is a perspective view of one side and the other side showing a configuration according to the first embodiment of the speaker appearance and appearance means in an embodiment of the present invention; FIG.
FIG. 18 and FIG. 19 are exploded perspective views of one side and the other side showing the configuration according to the first embodiment of the speaker appearance and appearance means in the embodiment of the present invention. FIG.
FIG. 20 is a plan sectional view showing an operation process according to the first embodiment of the speaker appearance / disconnection means in an embodiment of the present invention; FIG.
FIG. 21 is a perspective view showing a rotating member protruding from a housing according to a second embodiment of the speaker appearance / dismounting means in an embodiment of the present invention; FIG.
FIG. 22 is a perspective view showing a state in which a rotary member is introduced into a housing according to a second embodiment of the speaker appearance / dismounting means in an embodiment of the present invention; FIG.
23 is a perspective view showing a configuration according to a second embodiment of the speaker appearance and appearance means in an embodiment of the present invention.
24 is a perspective view showing a configuration according to a second embodiment of the speaker appearance-and-appearance means in an embodiment of the present invention;
FIG. 25 is a plan sectional view showing an operation process according to a second embodiment of the speaker appearance / appearance means in an embodiment of the present invention; FIG.
26 is a perspective view showing a sliding member protruded by a speaker appearance / dismounting means according to a third method according to an embodiment of the present invention;
27 is a perspective view showing a state in which a sliding member is introduced by a speaker appearance and dismounting means according to a third method according to an embodiment of the present invention;
28 is a perspective view showing the configuration of the speaker appearance / dismounting means according to the third method according to the embodiment of the present invention;
29 and 30 are exploded perspective views showing a configuration of the speaker appearance / dismantlement means according to the third method according to the embodiment of the present invention.
31 is a plan sectional view showing an operation process of the speaker appearance-and-appearance means according to a third method according to an embodiment of the present invention;
32 is a perspective view showing a rotating member protruded by a speaker appearance / dismounting means according to a fourth method according to an embodiment of the present invention;
FIG. 33 is a perspective view showing a state in which a rotary member is introduced by a speaker appearance and dismantlement means according to a fourth method according to an embodiment of the present invention; FIG.
34 is a perspective view showing a configuration of a speaker appearance / dismounting means according to a fourth method according to an embodiment of the present invention;
FIG. 35 is an exploded perspective view showing a configuration of a speaker appearance-and-appearance means according to a fourth method according to an embodiment of the present invention; FIG.
FIG. 36 is a plan sectional view showing an operation process of the speaker appearance-and-appearance means according to a fourth method according to an embodiment of the present invention; FIG.
Fig. 37 is a conceptual diagram showing a conventional display platform; Fig.
FIG. 38 is a perspective view showing the main driving unit of FIG. 37; FIG.
Figs. 39 and 40 are operational views for explaining an angle adjustment state. Fig.

The display position adjusting device of the present invention may be configured such that a speaker is mounted on the housing of the position adjusting device so that sound can be outputted at a constant height despite the change of the height of the display, The installation hole of the housing in and out of the speaker is always closed so that contamination of the inside of the housing due to the inflow of dust from the outside can be prevented.

Hereinafter, the configuration of the display position adjusting device will be described first, and the speaker operation configuration at the rear will be described.

1 to 36, a display position adjusting apparatus according to an embodiment of the present invention includes a pedestal 110, a main bracket 150, a lead screw 200, a first motor 210, The first link member 220, the lifting unit 300, the auxiliary bracket 400, the main link 430, the angle adjusting unit 500, the balancing member 700, the housing 100, the first guide roller 420, A second guide roller 310, a shielding means (not shown), and a speaker protrusion means 800, 900, 80, 90.

The pedestal 110 is supported on the floor as shown in FIG. 1 to support the present invention on the ground, and is coupled with the lower end of the housing 100, which will be described later.

The main bracket 150 is fixedly mounted on an upper portion of the pedestal 110 as shown in FIGS.

That is, the main bracket 150 serves as a structure for coupling other components, and is fixedly mounted on the upper surface of the pedestal 110.

The lead screw 200 is rotatably mounted on the main bracket 150 as shown in FIGS. 2 to 4, 10 and 11.

The upper end of the lead screw 200 is rotatably mounted on an upper portion of the guide pipe 220 to be described later.

The lead screw 200 causes the lifting unit 300 to move up and down by rotation.

The first motor 210 is mounted on the main bracket 150 to rotate the lead screw 200.

The guide pipe 220 functions as a vertical support unit as described in claim 1 and guides the lifting and lowering movement of the lifting unit 300. The guide pipe 220 is formed in a hollow shape as shown in FIGS. The lead screw 200 is inserted.

On both right and left sides of the guide pipe 220, a slide hole 221 is formed to be long in the vertical direction as shown in FIGS.

The slide hole 221 is a portion where a projection 301 of the lifting unit 300 described later is inserted and slid as shown in FIG.

The lifting unit 300 and the auxiliary bracket 400 are connected to each other through the slide hole 221 so that the auxiliary bracket 400 can move up and down together with the lifting unit 300.

10, 11, 13 and 14, a flange 222 protruding in the outward direction is formed on the outer circumference of the slide hole 221.

The support roller 410, which will be described later, is mounted on the flange 222 thus formed.

A detailed description thereof will be described later.

The elevating unit 300 is mounted on the thread of the lead screw 200 and inserted into the guide pipe 220 as shown in FIG.

The elevating unit 300 moves up and down in the vertical direction by the rotation of the lead screw 200.

As shown in FIG. 12, projections 301 that slide along the slide holes 221 are formed on both left and right sides of the lifting unit 300.

The protrusion 301 is protruded to the outside of the guide pipe 220 through the slide hole 221 and couples the auxiliary bracket 400 to be described later with the elevation unit 300 to connect the elevation unit 300 The auxiliary bracket 400 also moves up and down together.

That is, when the elevating unit 300 in the guide pipe 220 moves up and down by the lead screw 200, the protruding portion 301 also supports the auxiliary bracket 400, which will be described later, Join together to lift and lower.

As the elevating unit 300 moves upward and downward by the lead screw 200 in the guide pipe 220 to move the auxiliary bracket 400 up and down, The oil such as grease applied to the elevation unit 300 mounted on the lead screw 200 is prevented from being exposed to the outside and accumulation of dust or the like is prevented.

The auxiliary bracket 400 is a portion to which the components moving up and down together with the up-and-down movement by the up-and-down unit 300 are coupled.

2 to 4, the auxiliary bracket 400 includes the protrusion 301 of the lifting unit 300 protruding from the inside of the guide pipe 220 through the slide hole 221 And is lifted and lowered by the lifting unit 300 in the vertical direction.

13 and 14, the auxiliary bracket 400 is coupled to the protrusion 301 of the lifting unit 300 through the slide hole 221 formed on both sides of the guide tube 220 And is disposed on both left and right sides of the guide pipe 220 so as to be opposed to each other.

As shown in FIGS. 2, 3, 13, and 14, the auxiliary bracket 400 is spaced apart from the upper and lower portions of the protruding portion 301, and is inserted into the flange 222 of the slide hole 221 And a support roller 410 which is slid in contact with and rotates is mounted.

The support roller 410 is integrally formed with the first roller portion 411 and the second roller portion 412.

The first roller portion 411 is disposed so that its front surface is in contact with the end of the flange 222 as shown in FIG.

The first roller unit 411 prevents the auxiliary bracket 400 from moving left and right when the auxiliary bracket 400 is lifted and lowered in contact with the guide pipe 220.

13, the second roller 412 protrudes from the front surface of the first roller 411 and rotates in contact with the inner surface of the flange 222.

13, the second roller portion 412 is protrudingly formed on the front surface of the first roller portion 411 so as to be inserted into the flange 222, and is inserted into the inner surface of the flange 222 The outer periphery is in contact with and rotated.

The second roller portion 412 is inserted into the flange 222 when the auxiliary bracket 400 is lifted and lowered, so that the outer peripheral edge of the second roller portion 412 contacts the inner surface of the flange, So as to slide in the vertical direction more effectively.

The support roller 410 is integrally formed with the first roller portion 411 and the second roller portion 412 so that the auxiliary bracket 400 is supported by the lifting unit 300, The first roller portion 411 prevents the first roller portion 411 from being moved to the left and right of the auxiliary bracket 400 and the second roller portion 412 prevents the auxiliary bracket 400 from moving in the forward and backward directions So as to slide in the up-and-down direction more effectively.

As shown in FIGS. 2 to 4 of the auxiliary bracket 400, the support bracket 401 protruding forward is formed at the front.

The main link 430 is coupled to the support base 401 to support the main link 430 in a seesaw motion.

1 to 9, the main link 430 is rotatably coupled to the support 401 by a first hinge 431 to perform seesaw motion.

A display T is mounted on the front end of the main link 430 as shown in FIG.

That is, the main link 430 is coupled to the support table 401 so as to be seesawed to adjust the viewing angle of the display T mounted on the front by the angle adjusting means 500 and 600 .

2 to 9, the angle adjusting means 500 and 600 may be mounted on the auxiliary bracket 400 to seesaw the main link 430 about the first hinge 431 .

The angle adjusting means 500 and 600 include two embodiments.

First, the angle adjusting means 500 includes a rotating shaft 510, a worm gear 520, a worm 530, and a second motor 540 as shown in FIGS.

One end of the rotation shaft 510 is fixedly mounted on the main link 430 on the same center line as the first hinge 431 and the other end is rotatably mounted on the auxiliary bracket.

The rotation shaft 510 serves to rotate the main link 430 around the first hinge 431.

The worm gear 520 is mounted on the opposite end of the rotation shaft 510, that is, on the opposite side of the main link 430.

The worm 530 is mounted on the auxiliary bracket 400 so as to be engaged with the worm gear 520.

The second motor 540 is mounted on the auxiliary bracket 400 to rotate the worm 530.

The rotation of the second motor 540 causes the rotation shaft 510 to rotate so that the main link 430 performs a seesaw movement about the first hinge 431, Adjusts the viewing angle of the display (T) mounted on the front end.

The viewing angle of the display T can be easily adjusted by including the rotation shaft 510, the worm gear 520, the worm 530, and the second motor 540 in this way .

Particularly, it is possible to quickly control the angular position of the display T by applying a rotational force to the first hinge 431 of the main link 430, The weight balance by the display T and the balancing member 700 is maintained with respect to the first hinge 431 and the rotating shaft 510 is connected to the first hinge 431 to impart rotational force to the second motor 540 ) To reduce the driving load and enable a quiet angle adjustment.

Secondly, the angle adjusting means 600 includes a first rack gear 610, a first pinion gear 620 and a third motor 630 as shown in FIGS. 8 and 9.

The first rack gear (sector gear) 610 is formed in a fan shape as shown in FIG. 9 and mounted on the rear side of the main link 430.

The first pinion gear 620 is mounted on the auxiliary bracket 400 so as to be engaged with the first rack gear 610.

The third motor 630 is mounted on the auxiliary bracket 400 to rotate the first pinion gear 620.

When the third motor 630 rotates, the main link 430 rotates about the first hinge 431 by the first pinion gear 620 and the first rack gear 610, And adjusts the viewing angle of the display T mounted on the front end of the main link 430.

The angle adjusting means 600 includes the first rack gear 610, the first pinion gear 620 and the third motor 630 to rotate the third motor 630, The viewing angle of the display T can be easily adjusted.

As shown in FIGS. 2 and 4, the balancing member 700 is mounted at the rear end of the main link 430 to balance and balance the weight of the display T.

That is, in the balancing member 700, the main link 430 is pivoted forward about the first hinge 431 by the weight of the display T mounted on the front end of the main link 430 Balance the load so that it is not eccentric to the front.

By mounting the balancing member 700 in such a manner that the weight T of the display T is balanced so that the center of gravity does not shift forward due to the weight of the display T, it is possible to stably adjust the angle by the angle adjusting means 500 And can be prevented from falling forward due to the load of the display (T).

The balancing member 700 includes a weight member 710, a guide rod 720, a connecting rope 730, and a guide roller 740 as shown in FIGS.

The weight member 710 is formed with a guide hole 711 penetrating in the vertical direction and disposed at the rear lower portion of the auxiliary bracket 400 as shown in FIGS.

The weight member 710 has a weight corresponding to the display T weight.

The guide hole 711 guides the weight member 710 when the weight member 710 is lifted and lowered by the lifting unit 300 by inserting the guide rod 720 to be described later.

2 and 4, the lower end of the guide rod 720 is mounted on the pedestal 110, and the upper end of the guide rod 720 is mounted on the housing 100 as shown in FIGS.

The weight member 710 is inserted through the guide hole 711 to guide the lifting and lowering movement of the weight member 710 when the lifting unit 300 is lifted or lowered.

2 to 9, one end of the connecting rope 730 is mounted to the rear end of the main link 430, and the other end of the connecting rope 730 is mounted to the upper portion of the weight member 710.

That is, the connecting rope 730 connects the weight member 710 and the rear end of the main link 430.

The rear end of the main link 430 moves in the forward and backward directions when the main link 430 is seated by the angle adjusting means 500 and 600 as described above, So that the weight member 710 does not move in the forward and backward directions.

Further, the weight member 710 is disposed below the main bracket 150 to reduce the overall volume.

6, when the weight member 710 is directly coupled to the rear end of the main link 430, the weight member 710 may be extended in the forward and backward directions. However, when the weight member 710 is coupled to the main bracket 150, The connection rope 730 may be connected to the rear end of the connecting rope 730 to reduce the width in the front-rear direction.

The guide roller 740 is mounted on the auxiliary bracket 400 to guide the connection rope 730 as shown in FIGS.

That is, the guide roller 740 guides the connecting rope 730 and moves up and down the weight member 710 according to the angle adjustment of the main link 430 by the angle adjusting means 500 (600) Thereby preventing the weight member 710 from flowing back and forth.

More specifically, when the main link 430 is positioned horizontally and when the guide roller 740 is inclined downward forward according to a seesaw motion of the main link 430, the weight member 710 The guide roller 740 guides the connecting rope 730 to move the weight member 710 in the vertical direction but prevents the weight member 710 from moving in the forward and backward direction .

By mounting the guide roller 740 guiding the connecting rope 730 as described above, the weight member 710 can be prevented from moving back and forth due to seesaw motion of the main link 430, The weight member 710 can smoothly move up and down along the guide rods 720. [0154] As shown in FIG.

When the weight member 710 is lifted and lowered by the lifting unit 300 by the guide rod 720, the weight member 710 does not move back and forth, .

As shown in FIG. 1, the housing 100 has a slot 101 in which the main link 430 protrudes and slides, and a lower end of the slot 100 is fixed to the pedestal 110.

The body 100 includes a body plate 120 surrounding the housing 100, a front plate 130 mounted on the front of the body plate 120 and having the long holes 101 formed therein, And a cover plate (140).

According to the present embodiment, the housing 100 may be integrally formed, and 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 being introduced into the components disposed therein.

Mounting holes 121 are formed on both left and right sides of the housing 100 to connect the speaker appearance-dismantling means 800, 900, 80, 90, to which the speaker S is coupled.

A detailed description thereof will be described later.

In the front plate 130, the shielding means (not shown) is attached to the elongated hole 101 to block the elongated hole 101.

That is, the shielding means blocks a portion of the elongated hole 101 except for the main link 430, thereby preventing dust or the like from flowing into the housing 100 through the elongated hole 101.

2 to 4, 10, 11, 13 and 14, rail grooves 223 are formed in the outer periphery of the guide pipe 220 in the vertical direction on the front and rear sides.

The rail groove 223 guides the rotation of the first guide roller 420, which will be described later.

2 to 4, 10, 11, 13 and 14, the first guide roller 420 is mounted on the front and rear of the auxiliary bracket 400, And is rotated along the rail groove 223 formed on the outer periphery of the rail.

12, the second guide roller 310 is mounted on the elevation unit 300 and rotates along the inner circumferential surface of the guide tube 220 as shown in FIG.

That is, the first guide roller 420 rotates along the rail groove 223 by the lifting and lowering movement of the lifting unit 300, and the second guide roller 310 rotates about the inside of the guide tube 220 Rotate along the periphery.

By mounting the first guide roller 420 and the second guide roller 310 as described above, it is possible to smoothly move up and down the inside of the guide pipe 220 so that the lift unit 300 does not flow In addition, by holding the guide pipe 220 inside and outside, it is prevented from being eccentric to one side due to the load of the display T, thereby helping to move up and down more easily.

The speaker protrusion means 800, 900, 80 and 90 allow the speaker S to enter the inside of the housing 100 or protrude to the outside.

That is, when the display T is used, the speaker protrusion means 800, 900, 80, 90 project the speaker S from the installation hole 121 of the housing 100, To be introduced into the interior of the vehicle.

The speaker appearance-and-appearance means 800, 900, 80, and 90 also include four embodiments.

15 to 20, the speaker appearance and removal means 800 includes a sliding member 810, a guide groove 820, a guide protrusion 830, a second rack gear 840, a second pinion gear 850 ), A fourth motor 860, a sensor unit, and a control unit.

The sliding member 810 provided with the speaker S is slid to the inside and outside of the housing 100 through the installation hole 121 of the housing 100 as shown in FIG.

The sliding member 810 includes a guide mounting groove 811, a speaker mounting groove 812, and a cover 813 as shown in FIGS. 17 to 19.

The guide mounting groove 811 is opened in the direction of the housing 100 and the second rack gear 840 and the guide groove 820 or the guide protrusion 830 to be described later are mounted.

The speaker installation groove 812 is formed on a side surface of the guide installation groove 811, and a speaker S is installed.

That is, the speaker installation groove 812 is formed on the side of the guide groove 820 so that the speaker S faces forward, that is, toward the viewer.

The second rack gear 840 and the guide groove 820 or the guide protrusion 830 are installed in the guide mounting groove 811 and the speaker S is installed in the speaker mounting groove 812 Thereby preventing the rack gear, the guide groove 820 or the guide protrusion 830 and the speaker S from being exposed to the outside from the outside of the sliding member 810 to prevent contamination by dust or the like.

The speaker S is slidably coupled to the speaker mounting groove 812 in a vertical direction.

As shown in FIGS. 17 to 20, a protection plate 812a may be provided on the front surface of the speaker installation groove 812 to protect the speaker S, and if necessary, have.

The speaker S is slidably coupled to the speaker mounting groove 812 in the vertical direction so that the speaker S coupled to the sliding member 810 can be easily removed from the speaker S, Can be installed.

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

That is, the lid 813 prevents dust and the like from entering the upper and lower surfaces of the sliding member 810 opened by the guide installation groove 811 and the speaker installation groove 812, Thereby preventing the speaker S from falling downward.

15 and 20A, when the sliding member 810 is protruded out of the housing 100 as shown in FIG. 15 and FIG. 20A, the front surface of the front surface of the sliding member 810 and the cover 813, 16 and 20 (b), when the sliding member 810 enters the inside of the housing 100, the side surface of the sliding member 810 is inserted into the mounting hole 121 ).

The sliding member 810 blocks the installation hole 121 to prevent dust or the like from flowing into the interior of 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 mounting groove 811 of the sliding member 810 as shown in FIGS.

The guide protrusion 830 is formed on a fixed plate 890 fixed to the housing 100 to be coupled to the guide groove 820 and slide along the guide groove 820.

Alternatively, the guide groove 820 and the guide protrusion 830 may be formed opposite to each other.

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

17 to 19, the second rack gear 840 is mounted in the guide mounting groove 811 of the sliding member 810 in the direction of the housing 100.

The second pinion gear 850 is mounted on a fixed plate 890 fixed to the housing 100 and engaged with the second rack gear 840.

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

When the fourth motor 860 rotates, the second pinion gear 850 rotates to move the second rack gear 840 as shown in FIG. 20, The guide protrusion 830 and the guide protrusion 830 and slid into the housing 100 through the installation groove or protrude to the outside.

The speaker protruding means 800 may be attached to the sliding member 810, the guide groove 820, the guide protrusion 830, the second rack gear 840, the second pinion gear 850, The housing 100 can be made to protrude out of the housing 100 when the speaker S is used and to enter the inside of the housing 100 when not in use, .

The sensor unit senses whether the display T is on or off.

The controller (not shown) controls the third motor 630 by a signal from the sensor unit.

The controller controls the fourth motor 860 to project the speaker S to the outside of the housing 100 when the power of the display T is turned on by the signal of the sensor unit, Controls the fourth motor 860 so that the speaker S enters the inside of the housing 100 when the power of the display T is turned off.

Thus, the controller S automatically performs the operation by projecting the speaker S out of the housing 100 or entering the inside of the housing 100 according to the power state of the display T by the controller.

18, a position sensing sensor 814 for sensing the position of the sliding member 810 may be mounted so that the position of the speaker S in the inside of the housing 100, So that the protruding position of the housing 100 to the outside can be sensed.

The speaker appearance-and-appearance means 900 includes a rotary member 910, a driven gear 920, a driven gear 930, a fifth motor 940, a sensor unit, and a control unit, as shown in FIGS. .

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

21, 22, and 25, the rotary member 910 is rotated to project the speaker S to the outside of the housing 100 or to enter the inside of the housing 100 .

The rotary member 910 includes a first closure plate 911, a second closure plate 912, a speaker installation groove 913, and a hinge shaft 914, as shown in FIGS.

The first closing plate 911 opens and closes the mounting hole 121 as shown in FIG.

More specifically, the first blocking plate 911 closes the mounting hole 121 when the speaker S enters the inside of the housing 100 as shown in FIG. 25 (a).

The second blocking plate 912 closes the mounting hole 121 when the speaker S protrudes from the housing 100.

23 to 25, the second barrier plate 912 is spaced apart from the first barrier plate 911 by a predetermined angle, and the first barrier plate 911 is spaced apart from the installation hole 121 is opened, the second blocking plate 912 blocks the installation hole 121.

More specifically, the second barrier plate 912 blocks the installation hole 121 when the speaker S protrudes to the outside of the housing 100 as shown in FIG. 25 (b).

The first closing plate 911 and the second closing plate 912 close the mounting hole 121 irrespective of whether the speaker S is located outside or inside the housing 100 Dust, and the like from entering the interior of the housing 100 through the installation hole 121.

The speaker mounting groove 913 is formed to open forward to the first closing plate 911 when the second closing plate 912 closes the mounting hole 121 so that the speaker S is mounted .

The speaker S is slidably coupled to the speaker mounting groove 913 in a vertical direction.

23 to 25, a protection plate 913a may be provided on the front surface of the speaker installation groove 913 to protect the speaker S, and if necessary, the protection plate 913a may be installed It may not.

The speaker S is slidably coupled to the speaker installation groove 913 in the vertical direction so that the speaker S coupled to the rotary member 910 can be easily removed from the speaker S, Can be installed.

23 and 24, it is preferable that the loudspeaker S is blocked by the lid 915 so that the inserted speaker S is not removed and dust and the like are prevented from being introduced into the speaker mounting groove 913.

23 and 24, the hinge shaft 914 is formed on the top and bottom surfaces of the first closure plate 911 and the second closure plate 912 at a predetermined angle, And is hingedly coupled to a rear upper surface and a lower surface of the installation hole 121 of the main body 100.

The rotary member 910 is rotated by the hinge shaft 914 so that the first blocking plate 911 and the second blocking plate 912 selectively press the mounting holes 121 of the housing 100 .

That is, the rotary member 910 rotates around the hinge shaft 914 and the speaker installation groove 913 is inserted into the housing 100 through the installation hole 121 as shown in FIG. 25 (a) The first closure plate 911 closes the installation hole 121 and the speaker installation groove 913 is inserted into the installation hole 121 as shown in Figure 25 (b) The second closing plate 912 closes the mounting hole 121 when the first closing plate 912 protrudes from the housing 100 through the second closing plate 912. [

The driven gear 920 is mounted on the hinge coupling portion of the rotary member 910.

That is, the driven gear 920 is mounted on the hinge shaft 914 formed at a lower portion of the rotary member 910 as shown in FIGS. 23 and 14. FIG.

The driven gear 930 is mounted on the housing 100 to engage with the driven gear 920.

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

The rotation of the fifth motor 940 causes the rotary member 910 to rotate and the speaker S mounted on the rotary member 910 is rotated through the installation holes 121, As shown in FIG. 25, it enters the inside of the housing 100 or protrudes to the outside.

When the speaker S is used, the speaker appearance-and-appearance means 900 includes the rotary member 910, the driven gear 920, the spur gear 930, and the fifth motor 940, (Not shown) to rotate the rotary member 910 in the opposite direction to enter the interior of the housing 100, Thereby preventing exposure to the outside.

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

The control unit (not shown) controls the fifth motor 940 by a signal from the sensor unit.

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

24, a position sensing sensor 916 for sensing the position of the rotary member 910 may be installed to allow the speaker S to enter the interior of the housing 100, It is preferable that it can be seen that it protrudes out of the housing 100.

26 to 31, the speaker appearance and removal means 80 includes a sliding member 81, a guide groove 82, a guide projection 83, a sixth rack gear 84, a sixth pinion gear 85, a sixth motor 86, a sensor unit, and a control unit.

26 and 27, the sliding member 81 is formed in a " C "shape that is opened in the direction of the housing 100 and is inserted into the housing 100 through the installation hole 121 of the housing 100. [ 100).

The sliding member 81 includes a guide mounting groove 81a, a speaker mounting hole 81b and a lid 81c as shown in Figs.

The guide groove 81a is opened in the direction of the housing 100 and the sixth rack gear 84 and the guide groove 82 or the guide protrusion 83 described later are mounted.

The speaker mounting hole 81b is formed on the side surface of the sliding member 81. [

More specifically, the speaker installation hole 81b is formed on the sliding member 81 in a direction opposite to the housing 100. [

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

28 to 31, the speaker S is mounted on the speaker mounting hole 81b.

In the present embodiment, the speaker mounting hole 81b is 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 or one speaker mounting holes 81b may be formed.

The lid 81c is mounted on the upper and lower surfaces of the sliding member 81 to close the upper and lower surfaces of the guide mounting groove 81a.

That is, the lid 81c blocks the top and bottom surfaces of the sliding member 81 opened by the guide mounting groove 81a to prevent dust or the like from entering the lid 81c.

26 and 31 (b), when the sliding member 81 is protruded to the outside of the housing 100, the front surface of the front surface of the sliding member 81 and the surface of the cover 81c, 27 and 31 (a), the side surface of the sliding member 81, that is, the side surface of the speaker installation hole 81, The side surface of the mounting hole 81b is blocked by the mounting hole 121.

The sliding member 81 blocks the installation hole 121 to prevent dust or the like from entering the interior of 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 groove 81a of the sliding member 81 as shown in FIGS.

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

Alternatively, the guide groove 82 and the guide protrusion 83 may be formed 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 from the guide mounting groove 81a of the sliding member 81, as shown in FIGS.

The sixth pinion gear 85 is mounted on the fixed plate 89 fixed to the housing 100 and engaged with the second rack gear.

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

When the sixth motor 86 rotates, the sixth pinion gear 85 rotates to move the sixth rack gear 84, as shown in FIG. 31, And is guided and slid by the guide protrusion 82 and the guide protrusion 83 so as to enter the inside of the housing 100 through the installation hole 121 or protrude to the outside.

The speaker protruding and lowering means 80 is mounted on the sliding member 81, the guide groove 82, the guide protrusion 83, the sixth rack gear 84, the sixth pinion gear 85, The housing 100 can be made to sound by being protruded to the outside of the housing 100 when the speaker S is used and can be brought into close contact with the side surface of the housing 100 when not in use, .

The sensor unit senses whether the display T is on or off.

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

The control unit (not shown) controls the sixth motor 86 when the power of the display T is turned on by the signal of the sensor unit to project the speaker S to the outside of the housing 100 , And controls the sixth motor (86) when the power of the display (T) is turned off by a signal of the sensor unit to bring the speaker (S) into close contact with the side surface of the housing (100).

Thus, the speaker S is automatically protruded to the outside of the housing 100 according to the power state of the display T or is brought into close contact with the side surface by the controller.

29 and 30, a position sensing sensor 87 for sensing the position of the sliding member 81 may be mounted so that the speaker S is in close contact with the side surface of the housing 100 And the protruding position of the housing 100 to the outside.

32 to 36, the speaker appearance-and-dismounting means 90 includes a rotary member 91, a driven gear 92, a driven gear 93, a seventh motor 94, a sensor unit, and a control unit .

The rotary member 91 is hinged to the housing 100 to open or close the installation hole 121 and to push the speaker S into or out of the housing 100.

That is, the rotary member 91 rotates to project the speaker S to the outside of the housing 100 or to enter the inside of the housing 100 as shown in FIGS. 32 and 33.

34 to 36, the rotary member 91 includes a first blocking plate 91a, a second blocking plate 91b, a front plate 91c, a speaker mounting hole 91d, and a hinge shaft 91b. 91e.

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

More specifically, the first blocking plate 91a closes the mounting hole 121 when the speaker S enters the inside of the housing 100 as shown in FIG. 36 (a).

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

36, the second barrier plate 91b is spaced apart from the first barrier plate 91a at a predetermined angle, and the first barrier plate 91a is spaced apart from the installation hole 121, The second blocking plate 91b closes the mounting hole 121. [0053]

More specifically, the second blocking plate 91b closes the mounting hole 121 when the speaker S protrudes out of the housing 100 as shown in FIG. 36 (b).

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

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

That is, the front plate 91c is formed with the first blocking plate 91a and the second blocking plate 91b so that the inside of the front blocking plate 91c is formed as a hollow triangle, (91b).

A speaker installation hole 91d on which the speaker S is mounted is formed on the front plate 91c.

32-36, a protection plate 91f may be provided on the front surface of the front plate 91c to protect the speaker S mounted on the speaker installation hole 91d, The protective plate 91f may not be provided.

As shown in FIGS. 34 and 35, on the upper and lower surfaces of the inner space defined by the front plate 91c, the first closing plate 91a, and the second closing plate 91b, It is preferable that the cover 91g is closed.

34 and 35, the hinge shaft 91e is formed on the top and bottom surfaces of the first blocking plate 91a and the second blocking plate 91b, And is hinged to the rear upper surface and the lower surface of the hole 121.

The first blocking plates 91a and the second blocking plates 91b selectively press the mounting holes 121 of the housing 100 while the rotary member 91 is rotated by the hinge shafts 91e. .

That is, the rotary member 91 rotates around the hinge shaft 91e, and the front plate 91c, on which the speaker mounting hole 91d is formed, as shown in FIG. 36 (a) The first closure plate 91a closes the installation hole 121 and the speaker installation hole 91d is opened as shown in Figure 36 (b) The second blocking plate 91b closes the mounting hole 121 when the front plate 91c having the protrusion 91c protruded out of the housing 100 through the mounting hole 121. [

The driven gear 92 is mounted on the hinge coupling portion of the rotary member 91.

That is, the driven gear 92 is mounted on the hinge shaft 91e formed on the lower portion of the rotary member 91 as shown in FIG.

The driven gear 93 is mounted on the housing 100 to engage with the driven gear 92.

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

The rotary member 91 is rotated by the rotation of the seventh motor 94 so that the speaker S mounted on the rotary member 91 is rotated through the installation hole 121 as shown in FIG. So as to enter the inside of the housing 100 or protrude to the outside.

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

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

The control unit controls the seventh motor 94 to project the speaker S to the outside of the housing 100 when the power of 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, the seventh motor 94 is controlled so that the speaker S enters the inside of the housing 100.

35, a position sensing sensor 95 for sensing the position of the rotary member 91 may be mounted to allow the speaker S to enter the interior of the housing 100, It is preferable that it can be seen that it protrudes out of the housing 100.

The display position adjusting device of the present invention is not limited to the above-described embodiments, but can be variously modified and embodied within the scope of the technical idea of the present invention.

100: housing 101: elongated hole 110: pedestal
120: body plate 121: mounting hole 130: front plate
140: Cover plate 150: Main bracket 200: Lead screw
210: first motor 220: guide tube 221: slide ball
222: flange 223: rail groove 300: lift unit
301: protrusion 310: second guide roller 400: auxiliary bracket
401: support base 410: support roller 411: first roller portion
412: second roller portion 420: first guide roller 430: main link
431: first hinge 500: angle adjusting means 510:
520: Worm gear 530: Worm 640: Second motor
600: angle adjusting means 610: first rack gear 620: first pinion gear
630: Third motor 700: Balancing member 710: Weight member
711: guide ball 720: guide rod 730: connecting rope
740: guide roller 800: speaker protruding means 810: sliding member
811: Guide installation groove 812: Speaker installation groove 812a: Shield plate
813: cover 814: position sensor 820: guide groove
830: Guide protrusion 840: Second rack gear 850: Second pinion gear
860: Fourth motor 890: Fixing plate 900: Speaker appearance means
910: rotating member 911: first blocking plate 912: second blocking plate
913: Speaker installation groove 913a: Shield plate 914: Hinge shaft
915: cover 916: position sensor 920: driven gear
930: Spur gear 940: Fifth motor S: Speaker
T: Display
80: Speaker appearance / dismounting means 81: Sliding member 81a: Guide mounting groove
81b: Speaker mounting hole 81c: Cover 82: Guide groove
83: guide projection 84: sixth rack gear 85: sixth pinion gear
86: sixth motor 87: position detection sensor 89: fixed plate
90: speaker protruding means 91: rotary member 91a: first blocking plate
91b: second blocking plate 91c: front plate 91d: speaker mounting hole
91e: Hinge shaft 91f: Shield plate 92:
93: Main drive gear 94: Seventh motor 95: Position sensor

Claims

The vertical support unit includes a pedestal, a vertical support vertically installed on the pedestal, an elevation unit movably coupled to the vertical support, elevating means for elevating and lowering the elevation unit, and a display coupled to the elevation unit, An angle adjustment means for adjusting the angle of the display by pivoting the main link, a slot for protruding and sliding the main link is formed on the front side, a slot for receiving the elevation means and the angle adjustment means, A display position adjusting apparatus having a housing fixed to a pedestal,
On the left and right sides of the housing 100, a speaker S for emitting sound signals from the display T is provided,
A mounting hole 121 is formed in the housing 100 to allow the speaker S to protrude and retract,
(90) (900) for pivoting the speaker (S) to enter or exit the housing (100)
The speaker appearance-reducing means (90) comprises:
A front plate 91c formed with a speaker mounting hole 91d on which the speaker S is mounted and a first blocking plate 91a and a second blocking plate 91b are formed in a triangular tubular shape having three surfaces, A rotary member 91 formed with hinge shafts 91e at the upper and lower ends of the boundaries of the first and second barrier plates 91a and 91b and rotatably disposed in the housing 100 inside the installation hole 121, ;
A driven gear 92 coupled to either the upper end or the lower end of the hinge shaft 91e;
And a seventh motor (94) fixed to the inside of the housing (100) and having a driven gear (93) meshing with the driven gear (92)
The rotary member 91 rotates about the hinge shaft 91e and the front plate 91c to which the speaker S is coupled enters the interior of the housing 100 through the installation hole 121 The first blocking plate 91a closes the installation hole 121,
And the second blocking plate 91b closes the mounting hole 121 when the front plate 91c protrudes from the housing 100 through the mounting hole 121. [ A display position adjustment device comprising a rotatable speaker.

delete

[3] The speaker system according to claim 1, wherein a grill-shaped protection plate 91f through which the sound from the speaker S is passed is coupled to a front surface of the front plate 91c,
And a lid (91g) is coupled to an upper surface and a lower surface of the rotary member (91).

The vertical support unit includes a pedestal, a vertical support vertically installed on the pedestal, an elevation unit movably coupled to the vertical support, elevating means for elevating and lowering the elevation unit, and a display coupled to the elevation unit, An angle adjustment means for adjusting the angle of the display by pivoting the main link, a slot for protruding and sliding the main link is formed on the front side, a slot for receiving the elevation means and the angle adjustment means, A display position adjusting apparatus having a housing fixed to a pedestal,
On the left and right sides of the housing 100, a speaker S for emitting sound signals from the display T is provided,
A mounting hole 121 is formed in the housing 100 to allow the speaker S to protrude and retract,
(90) (900) for pivoting the speaker (S) to enter or exit the housing (100)
The speaker appearance-and-appearance means 900 includes:
A rotary member 910 hinged to the housing 100 to open and close the installation hole 121 and to which the speaker S is mounted and a driven gear 920 mounted to the hinge coupling portion of the rotary member 910 A fifth motor 940 mounted on the housing 100 to rotate the main gear 930 and a second motor 940 mounted on the housing 100 to rotate the main gear 930, And,
The rotary member 910 is provided with a speaker installation groove 913 in which a speaker S is installed to form a first stopping hole for closing the installation hole 121 when the speaker S enters the inside of the housing 100 A second blocking plate 912 that closes the mounting hole 121 when the speaker S protrudes from the housing 100 and a second blocking plate 912 that closes the mounting hole 121 when the speaker S protrudes from the housing 100, And a hinge shaft 914 hinged to the lower surface of the mounting hole 121 of the housing 100 and the lower surface of the housing 100,
The speaker S is slidably coupled to the speaker mounting groove 913 in the up and down direction and a lid 915 is fixed to the upper and lower surfaces of the speaker mounting groove 913 to prevent the speaker S from coming off.
The fifth motor 940 drives the rotation member 910 around the hinge shaft 914 so that the speaker S enters the housing 100 through the installation hole 121 The first closure plate 911 closes the installation hole 121 and when the speaker S protrudes out of the housing 100 through the installation hole 121, (912) closes the installation hole (121).

The display device according to claim 1, further comprising: a sensor unit for sensing on and off of the display; A control unit for controlling the seventh motor (94) by a signal of the sensor unit; Further comprising:
The control unit controls the seventh motor 94 to project the speaker S to the outside of the housing 100 when the power of the display T is turned on by the signal of the sensor unit, Wherein the controller controls the seventh motor to move the speaker into the housing when the power of the display is turned off.