KR101600925B1 - A position control apparatus for a television receiver - Google Patents

Abstract

The present invention relates to a display position control device using a chain and, especially, to a display position control device using a chain, enabling an elevating operation to be more easily performed by using a chain in the elevating operation with a display mounted. The display position control device using a chain includes: a prop (110); a pair of support frames (200) vertically disposed in parallel on left and right sides of an upper surface of the prop (110); a bracket (300) slid and coupled to be elevated along the support frames (200) between the support frames (200); a main link (400) coupled to the bracket (300) to rotate in the vertical direction and having a display (T) mounted on one end thereof; an elevating means (700) elevating the bracket (300) and the main link (400) along the support frames (200); and a housing (100) having an elongated hole, slid due to the protruding main link (400), on a front surface and of which a lower end is fixed to the prop (110).

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] 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 in which lifting and lowering movements are more smoothly performed using a chain when the display is mounted.

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-mentioned requirements as shown in Figs. 32 to 35. 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. [

The elevating means includes a screw shaft 11 which is vertically and rotatably supported on the frame 10 and to which the moving block 20 is screwed, A guide rod 12 and 13 supported by the movable block 20 and slidably coupled to the movable block 20 and a driving motor for driving the screw shaft 11 to rotate.

The angle adjusting means is rotatably connected to the lower portion of the rear side of the TV receiver 200 and the lower portion of the moving block 20 corresponding to the rear side by the engagement of the hinge pieces 201 and 21, A rotary center body 30 rotatably driven by a rotary motor 500 at an upper portion of the block 20 and provided with a vertical protrusion 31 at an end thereof, A link member 32 and a lever member 33 having one end rotatably connected to the other end of the link member 32 and the other end fixed to the upper side of the TV receiver 200.

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, the above-mentioned apparatuses have a structure in which the screw 11 is exposed to the outside, and the pollution speed due to the foreign substance such as dust is high in the oil such as the grease applied to the screw 11 due to the static electricity by the TV receiver 200 So that the lifting and lowering operation is not smooth and the cleaning cycle is shortened.

Korea Patent No. 10-0521359

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a chain in which a chain is vertically arranged on both sides of a support frame, The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a display position adjusting device using a chain capable of smoothly moving up and down.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, A pair of support frames disposed parallel to each other in the vertical direction on both left and right sides of the upper surface of the pedestal; A bracket slidably coupled to the support frame to move up and down along the support frame; A main link coupled to the bracket so as to be rotatable in an up and down direction and having a display mounted on a front end thereof; Up and down means for moving the bracket and the main link up and down along the support frame; A housing having a front portion formed with a slot through which the main link protrudes and sliding, and a lower end fixed to the pedestal; Wherein the elevating means comprises: a main coaxial shaft mounted under the support frame so as to protrude from both sides of the support frame; A pair of main sprockets mounted on both ends of the main coaxial shaft; A pair of driven sprockets mounted on an upper outer side of the support frame in correspondence with the main sprocket; A pair of chains mounted on the main sprocket and the driven sprocket and having one side coupled to the bracket; A first motor mounted between the support frames to rotate the main coaxial shaft; Lt; / RTI >

Wherein the support frame is formed in a " C "-shaped form having an opening that opens rearward in a cross section, and the bracket is mounted on the left and right sides so as to be vertically spaced apart from the front, A guide roller; A second guide roller mounted on the left and right sides so as to be spaced apart from each other in the vertical direction and disposed behind the support frame; The second guide roller includes a first roller portion whose front surface is in contact with an end of the opening portion of the support frame; A second roller portion protruding from the front surface of the first roller portion so as to protrude in a stepwise manner and rotated on the inner surface of the opening portion in contact with the outer circumferential surface; The outer peripheral surface of the first guide roller rotates in contact with the front surface of the support frame when the bracket is lifted and lowered by the lifting means, And the second roller portion contacts the outer surface of the inner surface of the opening portion and rotates to prevent the bracket from flowing.

The main link is hinged to the support by a first hinge so as to perform a seesaw motion. The main link is mounted on the bracket, and the main link is connected to the first hinge Angle adjusting means for performing a seesaw motion around the center; A balancing member mounted at a rear end of the main link for balancing the weight of the display; And further comprising:

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 on the bracket so as to be engaged with the first rack gear; A second motor mounted on the bracket for rotating the first pinion gear; Wherein the main link is seesawed around the first hinge by the first pinion gear and the first rack gear to adjust the viewing angle of the display when the second motor rotates .

The balancing member may include a weight member having a guide hole penetrating in a vertical direction and disposed at a rear lower portion of the bracket; A lower end portion mounted on the pedestal and an upper end mounted on the housing, the guide rod being inserted into the guide hole to guide the weight member; A connecting rope having one end mounted on a rear end of the main link and the other end mounted on an upper portion of the weight member; A guide roller mounted on the bracket to guide the connecting rope; Wherein the guide roller guides the connecting rope to prevent the weight member from flowing forward and backward when the weight member moves up and down according to the angle of the main link by the angle adjusting means, And when the weight member is lifted and lowered by the lifting means, the weight member is vertically guided.

Further, the present invention is characterized in that the speaker further includes speaker holes formed on both left and right sides of the housing, in which a speaker is placed, and speaker exposing means for entering the speaker into the housing or projecting the speaker to the outside.

Also, the speaker exposing means includes a sliding member which is inserted into and out of the housing through the installation hole, the speaker is mounted, the guide groove is formed, and the second rack gear is provided; A fixing plate fixed to the housing and having a guide projection slidable in the guide groove and a second pinion gear engaged with the second rack gear; And a third motor mounted on the fixed plate and rotating the second pinion gear. The second pinion gear interlocks the second rack gear with the driving of the third motor, so that the sliding member Is projected and withdrawn to the inside and outside of the housing through the installation hole.

Further, the sliding member may include: a guide installation groove opened in the housing direction and provided with the second rack gear and the guide groove; A speaker mounting groove formed on a side surface of the guide mounting groove and provided with a speaker; A cover mounted on an upper surface and a lower surface of the sliding member to close the upper surface and the lower surface of the guide installation groove and the speaker installation groove; When the sliding member is protruded to the outside of the housing, the mounting hole is closed by the front surface, the rear surface, the side surface and the cover of the sliding member, and when the sliding member enters the inside of the housing, And the side surface of the member closes the installation hole.

In addition, the speaker is slidably coupled to the speaker mounting groove in a vertical direction.

The speaker exposing means includes a rotary member hinged to the housing to open and close the installation hole and to which the speaker is mounted; A driven gear mounted on the hinge coupling portion of the rotary member; A driven gear mounted on the housing to be engaged with the driven gear; And a fourth motor mounted on the housing to rotate the main gear, wherein the rotating member is rotated by driving the fourth motor to cause the speaker mounted on the rotating member to enter the housing through the mounting hole Or protruded to the outside.

The rotating member may include a first blocking plate formed with a speaker mounting groove on which the speaker is installed and closing the mounting hole when the speaker enters the housing; A second blocking plate that closes the mounting hole when the speaker protrudes from the housing; A hinge shaft formed on an upper surface and a lower surface of the first bending plate and the second bending plate in contact with each other and hinged to a lower surface and a lower surface of the mounting hole of the housing; Wherein the first blocking plate closes the installation hole when the rotary member rotates about the hinge axis and the speaker enters the housing through the installation hole, and the speaker is closed through the installation hole And the second clogging plate closes the installation hole when protruding out of the housing.

The loudspeaker is slidably coupled to the speaker mounting groove in a vertical direction, and 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.

In addition, a sensor unit for sensing on and off of a display; A control unit for controlling the third motor or the fourth motor by a signal of the sensor unit; Wherein the control unit controls the third motor or the fourth motor when the power of the display is turned on by the signal of the sensor unit to expose the speaker to the outside of the housing, And controls the third motor or the fourth motor when the power is turned off so that the speaker enters the inside of the housing.

The chain is rotated by the rotation of the first motor, so that the bracket and the main link can be rotated together with the main link, There is an effect of moving up and down along the support frame.

In addition, by making the chain ascend and descend, it is possible to perform a smooth ascending and descending motion, and it is possible to minimize the occurrence of residuals or the like even if dust or the like is piled up.

Second, the second guide roller is formed integrally with the first roller portion and the second roller portion, so that when the bracket is slid along the support frame by the elevating means and the bracket is moved along the support frame, It is possible to prevent the roller from moving in the forward and backward direction by the roller and the first roller portion, and to prevent the roller from moving in the left and right direction by the second roller portion.

Third, since the angle adjusting means includes the first rack gear, the first pinion gear, and the second motor, it is possible to easily adjust the viewing angle of the display by rotating the second motor.

Fourth, by equipping the balancing member so as to prevent the center of gravity from being offset forward by the weight of the display, it is possible to stably adjust the angle by the angle adjusting means, There is an effect to prevent.

Fifth, by mounting a guide roller for guiding the connecting rope, it is possible to prevent the back and forth movement of the weight member due to seesaw motion of the main link, thereby preventing collision and interference between the weight member and other components, , And the weight member can smoothly move up and down along the guide rod.

In addition, by mounting the guide rods, there is an effect that when the weight member is lifted and lowered by the lifting means, the weight member does not flow back and forth, and the lifting and lowering motion is smoothly performed in the vertical direction.

Sixth, there is an effect that the speaker can be selectively introduced into the housing or protruded to the outside by the speaker exposing means, thereby protruding the speaker in use and entering the inside of the housing if not used.

Seventh, since the speaker is slidably coupled to the speaker installation groove in the vertical direction, the speaker coupled to the sliding member is prevented from being arbitrarily deviated forward, and the speaker can be easily installed.

Eighth, the sliding member blocks the installation hole, thereby preventing dust or the like from entering the interior of the housing through the installation hole.

Ninth, the speaker exposing means includes the sliding member, the guide groove, the guide protrusion, the second rack gear, the second pinion gear, and the third motor. When the speaker is used, the speaker protrudes to the outside of the housing, And when it is not used, it enters the inside of the housing and is not exposed to the outside.

Tenth, there is a hygiene that is automatically performed by projecting the speaker out of the housing or entering the inside of the housing according to the power state of the display by the control unit.

Eleventh, the first blocking plate and the second blocking plate prevent the installation hole regardless of whether the speaker is located outside or inside the housing, so that dust or the like flows into the inside of the housing through the installation hole There is an effect to prevent.

And the speaker exposing means comprises the rotary member, the driven gear, the driven gear, and the fourth motor, so that when the speaker is used, the rotary member is rotated to protrude to the outside of the housing, The rotating member is rotated in the opposite direction to enter the inside of the housing, thereby preventing the rotating member from being exposed to the outside.

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 according to an embodiment of the present invention;
4 and 5 are perspective views of one side and the other side of the elevating means and the bracket according to an embodiment of the present invention;
6 is a plan sectional view showing a configuration of a bracket according to an embodiment of the present invention.
FIGS. 7 and 8 are perspective views of a bracket, a main link, an angle adjusting means, and a balancing member according to an embodiment of the present invention.
9 is a side view showing the configuration of a bracket, a main link, an angle adjusting means, and a balancing member according to an embodiment of the present invention.
10 is a perspective view showing a sliding member protruded by a speaker exposing means according to a first method according to an embodiment of the present invention;
11 is a perspective view showing a state in which a sliding member is introduced by a speaker exposing means according to a first method according to an embodiment of the present invention;
FIG. 12 is a perspective view illustrating a configuration of speaker exposing means according to a first method according to an embodiment of the present invention; FIG.
13 and 14 are exploded perspective views illustrating a configuration of speaker exposing means according to a first method according to an embodiment of the present invention.
FIG. 15 is a plan sectional view illustrating an operation process of a speaker exposing means according to a first method according to an embodiment of the present invention; FIG.
16 is a perspective view showing a rotating member protruded by a speaker exposing means according to a second method according to an embodiment of the present invention;
17 is a perspective view showing a state in which a rotary member is introduced by a speaker exposing means according to a second method according to an embodiment of the present invention;
18 is a perspective view illustrating a configuration of speaker exposing means according to a second method according to an embodiment of the present invention;
19 is an exploded perspective view showing a configuration of a speaker exposing means according to a second method according to an embodiment of the present invention;
20 is a plan sectional view showing an operation process of a speaker exposing means according to a second method according to an embodiment of the present invention;
21 is a perspective view showing a sliding member protruded by a speaker exposing means according to a third method according to an embodiment of the present invention;
22 is a perspective view showing a state in which a sliding member is introduced by a speaker exposing means by a third method according to an embodiment of the present invention;
23 is a perspective view illustrating a configuration of speaker exposing means according to a third method according to an embodiment of the present invention;
FIG. 24 and FIG. 25 are exploded perspective views illustrating the configuration of a speaker exposing means according to a third method according to an embodiment of the present invention; FIG.
FIG. 26 is a plan sectional view showing an operation process of the speaker exposing means according to a third method according to an embodiment of the present invention; FIG.
FIG. 27 is a perspective view showing a rotating member protruded by speaker exposing means according to a fourth method according to an embodiment of the present invention; FIG.
28 is a perspective view showing a state in which a rotary member is introduced by a speaker exposing means according to a fourth method according to an embodiment of the present invention;
FIG. 29 is a perspective view illustrating a configuration of speaker exposing means according to a fourth method according to an embodiment of the present invention; FIG.
30 is an exploded perspective view showing a configuration of speaker exposing means according to a fourth method according to an embodiment of the present invention;
31 is a plan sectional view showing an operation of the speaker exposing means according to a fourth method according to an embodiment of the present invention;
32 is a conceptual view showing a conventional display platform;
33 is a perspective view showing the main driving unit of Fig.
Figs. 34 and 35 are operational views for explaining an angle adjustment state. Fig.

The display position adjusting device using the chain according to the embodiment of the present invention is characterized in that the chain is constituted by vertically moving both sides of the support frame and a bracket for moving up and down the chain is engaged, So that the lifting and lowering motion can be performed more smoothly, and the residual balance due to dust and the like can be reduced.

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

The pedestal 110 is supported on the floor as shown in FIG. 1 so as to allow the present invention to stand on the ground.

The pedestal 110 may be disposed on the lower surface of the housing 100 to support the ground or the like. Alternatively, the pedestal 110 may be mounted on the rear surface of the housing 100 to be mounted on a wall, have.

The pedestal 110 is coupled to the lower end of the housing 100, as shown in FIG.

A detailed description thereof will be described later.

The supporting frames 200 are arranged in parallel in the vertical direction on both sides of the upper surface of the pedestal 110.

That is, the support frames 200 are spaced apart from each other at regular intervals as shown in FIGS. 2 to 5, and are vertically disposed on the upper surface of the pedestal 110.

As described later, the elevating means 700 is coupled to the support frame 200 to support the bracket 300 to move up and down.

Accordingly, the support frame 200 is formed in a " C "shape having an opening 201 opened rearward in a cross section as shown in Fig.

A detailed description thereof will be described later.

The bracket 300 is slidably engaged with the support frame 200 to move up and down along the support frame 200.

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

2, 7 and 9, the main link 400 is coupled with the first hinge 311 in a seesaw motion.

2, 4, and 6, the first guide roller 320 is mounted on the left and right sides of the bracket 300 so as to be spaced apart from each other in the vertical direction.

The first guide roller 320 prevents the bracket 300 from flowing backward when sliding along the support frame 200 while rotating the first guide roller 320 in contact with the outer circumference of the support frame 200 , So that sliding is performed well.

The second guide rollers 330 are mounted on the left and right sides of the bracket 300 so as to be spaced apart from each other in the vertical direction and disposed behind the support frame 200.

The first guide roller 320 and the second guide roller 330 are installed to support the front and rear surfaces of the support frame 200 so that the brackets 300 are moved up and down So that the lifting movement can be performed well.

At this time, as shown in FIG. 6, the second guide roller 330 is integrally formed with the first roller portion 331 and the second roller portion 332.

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

The first roller portion 331 is in contact with the front and rear surfaces of the support frame 200 when the bracket 300 is moved up and down together with the first guide roller 320, And backward.

6, the second roller portion 332 protrudes from the front surface of the first roller portion 331 so that the outer circumferential surface of the second roller portion 332 contacts the inner surface of the opening portion 201 and rotates.

That is, when the bracket 300 is lifted and lowered 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 first roller portion 331 is in contact with the front end of the opening portion 201 and the second roller portion 332 is rotated by the outer circumferential surface of the second roller portion 332 in contact with the inner surface of the opening portion 201.

The second guide roller 330 is integrally formed with the first roller portion 331 and the second roller portion 332 so that the bracket 300 is supported by the elevating means 700, The bracket 300 is prevented from flowing in the forward and backward directions by the first guide roller 320 and the first roller portion 331 during the lifting and lowering movement of the second roller 320, And is prevented from flowing in the left-right direction by the elastic member (332).

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

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 seesaw motion.

The main link 400 controls the viewing angle of the display T by the angle adjusting means 500 and the balancing member 600, which will be described later.

7 to 9, the angle adjusting unit 500 is mounted on the bracket 300 to perform a seesaw movement about the first hinge 311 with respect to the main link 400.

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 on the rear side of the main link 400.

The first pinion gear 520 is mounted on the bracket 300 so as to engage with the first rack gear 510 as shown in FIGS.

The second motor 530 is mounted on the bracket 300 to rotate the first pinion gear 520.

When the second motor 530 rotates, the main link 400 is moved by the first pinion gear 520 and the first rack gear 510 to the seesaw motion about the first hinge 311, And controls the viewing angle of the display (T) mounted on the front end of the main link (400).

The angle adjusting means 500 includes the first rack gear 510, the first pinion gear 520 and the second motor 530 to rotate 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 adjust the viewing angle of the display T through other known techniques.

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

In other words, the balancing member 600 is configured such that the main link 400 is pivoted forward about the first hinge 311 by the weight of the display T mounted on the front end of the main link 400, Balance to prevent eccentricity to the front.

By equipping the balancing member 600 so as to prevent the center of gravity from being offset forward by the weight of the display T, the angle can be stably adjusted by the angle adjusting means 500, It is possible to prevent the display T from falling forward due to 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.

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

The weight member 610 has a weight corresponding to the display T weight.

The guide hole 611 guides the weight member 610 when the weight member 610 is moved up and down by the elevating means 700 by inserting the guide rod 620 described later.

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

The weight rod 610 is inserted through the guide hole 611 and the guide rod 620 is moved upward and downward by the elevating means 700 to move the weight member 610 Guide the lift movement.

7 to 9, one end of the connecting rope 630 is mounted on the rear end of the main link 400, and the other end of the connecting rope 630 is mounted on the weight member 610. [

That is, the connecting rope 630 connects the weight member 610 and the rear end of the main link 400.

As described above, the connecting rope 630 is moved in the backward direction of the main link 400 by the angle adjusting means 500 during the seesaw motion of the main link 400, Thereby preventing the member 610 from moving in the forward and backward directions.

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

That is, if the weight member 610 is directly coupled to the rear end of the main link 400, the width of the weight member 610 increases in the front-rear direction. However, as shown in FIG. 3, It is possible to connect the connecting ropes 630 so as to be disposed at the rear lower end to reduce the width in the front-rear direction.

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

That is, the guide roller 640 guides the connection rope 630 to move the weight member 610 upward and downward according to the angle adjustment of the main link 400 by the angle adjusting unit 500, Thereby preventing the member 610 from flowing back and forth.

More specifically, when the main link 400 is positioned horizontally and when the guide roller 640 is inclined downward forward according to a seesaw motion of the main link 400, the weight member 610 The guide roller 640 guides the connecting rope 630 to move the weight member 610 in the vertical direction but prevents the weight member 610 from moving in the forward and backward direction .

By mounting the guide roller 640 guiding the connecting rope 630 as described above, it is possible to prevent the backward movement of the weight member 610 due to seesaw motion of the main link 400, The weight member 610 can smoothly move up and down along the guide rods 620. [0158] As shown in FIG.

When the weight member 610 is moved up and down by the elevating means 700, the weight member 610 does not move back and forth and right and left, .

The elevating means 700 moves the bracket 300 and the main link 400 up and down along the support frame 200.

The elevating means 700 includes a main coaxial shaft 710, a main sprocket 720, a driven sprocket 730, a chain 740 and a first motor 750.

As shown in FIGS. 3 and 5, the main coaxial shaft 710 is mounted under the support frame 200 so as to protrude from both sides of the support frame 200.

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

That is, the main sprocket 720 is mounted on both sides of the lower portion of the pair of support frames 200 as shown in FIGS. 2 to 5.

2 to 5, the driven sprocket 730 is mounted outside the upper portion of the support frame 200 in correspondence with the main sprocket 720.

2 to 5, the tension springs 730 are mounted on the support frame 200 to adjust the tension of the chain 740 described later desirable.

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

The rear end of the bracket 300 is mounted on the chain 740.

The first motor 750 is mounted between the support frames 200 to rotate the main coaxial shaft 710 as shown in FIG.

When the first motor 750 rotates, the main coaxial shaft 710 rotates to rotate the main sprocket 720 and the chain 740 mounted on the driven sprocket 730, The brackets 300, one side of which is coupled to the chain 740, move up and down in the vertical direction.

Since the elevating means 700 includes the main coaxial shaft 710, the sprocket 720, the driven sprocket 730, the chain 740 and the first motor 750, The chain 740 is rotated by the rotation of the motor 750 to move the bracket 300 and the main link 400 up and down along the support frame 200.

Further, by making the chain 740 move up and down, it is possible to smoothly move up and down, thereby minimizing occurrence of residuals or the like even if dust or the like is piled up.

As shown in FIG. 1, the housing 100 has a slot 101 in which the main link 400 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 exposing means 800, 900, 80, 90 having the speaker S coupled thereto.

A detailed description thereof will be described later.

In the front plate, the shielding means is mounted on 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 400 to prevent dust or the like from flowing into the housing 100 through the elongated hole 101.

The speaker exposing means (800, 900, 80, 90) allows the speaker (S) to enter into the interior of the housing (100) or protrude to the outside.

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

The speaker exposing means (800, 900, 80, 90) comprises four embodiments.

First, the speaker exposing means 800 includes a sliding member 810, a guide groove 820, a guide protrusion 830, a second rack gear 840, a second pinion 810, A gear 850, a third 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 installation groove 811, a speaker installation groove 812, and a cover 813 as shown in FIGS.

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. 13 to 15, 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.

10 and 15A, when the sliding member 810 is protruded to the outside of the housing 100, the front surface of the front surface of the sliding member 810 and the side surface of the cover 813, 11 and 15 (b), when the sliding member 810 enters the inside of the housing 100, the side surface of the sliding member 810 closes the installation hole 121 ).

The sliding member 810 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 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. 12 to 14.

The guide protrusion 830 is formed on the housing 100 to be coupled to the guide groove 820 and to 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.

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

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

When the third motor 860 rotates, the second pinion gear 850 rotates to move the second rack gear 840 as shown in FIG. 15, 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 exposing means 800 may be disposed between 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 control unit (not shown) controls the third motor 860 by a signal from the sensor unit.

The controller (not shown) controls the third motor 860 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 third motor 860 when the power of the display T is turned off by the signal of the sensor unit to allow the speaker S to enter the inside of the housing 100. [

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.

12, 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.

16 to 20, the speaker exposing means 900 includes a rotary member 910, a driven gear 920, a driven gear 930, a fourth motor 940, a sensor unit, .

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

The rotation member 910 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.

The rotary member 910 includes a first blocking plate 911, a second blocking plate 912, a speaker mounting 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. 20 (a).

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

20, the first barrier plate 911 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, The second closure plate 912 closes the installation hole 121. As shown in FIG.

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

16 to 20, 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.

As shown in FIGS. 18 and 19, it is preferable that the loudspeaker S is blocked by the lid 915 so as to prevent dust and the like from entering the upper and lower surfaces of the speaker installation groove 913.

18 and 19, the hinge shaft 914 is formed on the top and bottom surfaces of the first blocking plate 911 and the second blocking plate 912, And is hinged to the rear upper surface and the lower surface of the hole 121.

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 is rotated about the hinge shaft 914 so that the speaker installation groove 913 is inserted through the installation hole 121 into the housing 100 The first closing plate 911 closes the mounting hole 121 and the speaker mounting groove 913 is inserted into the mounting hole 121 as shown in Figure 20 (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 FIG.

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

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

The rotary member 910 is rotated by the rotation of the fourth motor 940 so that the speaker S mounted on the rotary member 910 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.

When the speaker S is used, the speaker exposing means 900 includes the rotary member 910, the driven gear 920, the main gear 930 and the fourth 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 fourth motor 940 by a signal from the sensor unit.

The control unit controls the fourth motor 940 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 fourth motor 940 is controlled so that the speaker S enters the interior of the housing 100.

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.

19, 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.

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

21 and 22, 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 cover 81c as shown in Figs. 23 to 26. Fig.

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.

23 to 26, 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.

21 and 26 (b), when the sliding member 81 protrudes out of the housing 100, the front surface of the front surface of the sliding member 81 and the surface of the cover 81c, 22 and Fig. 26 (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 mounting groove 81a of the sliding member 81 as shown in FIGS. 23 to 26.

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.

23 to 25, 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 FIG.

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. 26, 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.

As described above, the speaker exposing means 80 is disposed between 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.

24 and 25, a position sensing sensor 87 for sensing the position of the sliding member 81 may be mounted so that the speaker S is in contact with the side surface of the housing 100 And the protruding position of the housing 100 to the outside.

Fourth, the speaker exposing means 90 includes a rotary member 91, a driven gear 92, a driven gear 93, a seventh motor 94, a sensor 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 enter the inside of the housing 100 as shown in FIGS. 27 and 28.

29 to 31, the rotary member 91 includes a first closure plate 91a, a second closure plate 91b, a front plate 91c, a speaker installation 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. 31 (a).

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

31, 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 to the outside of the housing 100 as shown in FIG. 31 (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 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).

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

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

27 to 31, 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. 29 and 30, on the upper and lower surfaces of the inner space defined by the front plate 91c, the first blocking plate 91a, and the second blocking plate 91b, It is preferable that the cover 91g is closed.

29 and 30, 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. .

31 (a), the front plate 91c formed with the speaker installation hole 91d is rotated by the installation hole 121 (see FIG. 31 The first closing plate 91a closes the mounting hole 121 and the speaker mounting hole 91d is closed as shown in Figure 31 (b) The second closing plate 91b closes the mounting hole 121 when the front plate 91c having the first closing plate 91c is protruded to the outside 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.

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.

30, a position sensing sensor 95 for sensing the position of the rotary member 91 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.

The display position adjusting device using the chain according to the present invention is not limited to the above-described embodiments, but can be variously modified 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 200: support frame 201: opening
300: bracket 310: support 311: first hinge
320: first guide roller 330: second guide roller 331: first roller portion
332: second roller section 400: main link 500: angle adjusting means
510: first rack gear 520: first pinion gear 530: second motor
600: Balancing member 610: Weight member 611: Guide ball
620: guide rod 630: connecting rope 640: guide roller
700: lifting means 710: main coaxial shaft 720:
730: driven sprocket 731: tension adjusting portion 740: chain
750: first motor 800: speaker exposing 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: Third motor 890: Fixing plate 900: Speaker exposure means
910: rotating member 911: first blocking plate 912: second blocking plate
913: Speaker installation groove 913a: Shield plate 914: Hinge shaft
915: lid 920: driven gear 930: driven gear
940: Fourth motor S: Speaker T: Display
80: Speaker exposure 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 exposing 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 (13)

A pedestal 110; A pair of support frames (200) arranged and fixed on both sides of the upper surface of the pedestal (110) in parallel in a vertical direction; A bracket 300 slidingly coupled to the support frame 200 to move up and down along the support frame 200; A main link 400 rotatably coupled to the bracket 300 in a vertical direction and having a display T mounted on one end thereof; An elevating means 700 for moving the brackets 300 and the main link 400 up and down along the support frame 200; And a housing 100 fixed to the pedestal 110 at a lower end thereof with a slot 101 through which the main link 400 protrudes and slides,
The elevating means 700 includes a main shaft 710 rotatably supported under the pair of support frames 200 and mounted on both sides of the support frame 200 so as to protrude from both ends thereof; A pair of sprockets 720 mounted on both ends of the main coaxial 710; A pair of driven sprockets 730 rotatably mounted on the outside of the upper portions of the support frames 200 in correspondence with the main sprockets 720; A pair of chains 740 which are hooked to the main sprocket 720 and the driven sprocket 730 and to which the bracket 300 is fixed; And a first motor (750) mounted between the support frames (200) and rotating the main coaxial shaft (710)
The support frame 200 is formed in a " C "shape having an opening 201 opened rearward on a cross section,
The bracket 300 includes a first guide roller 320 mounted on the left and right sides of the bracket 300 so as to be vertically spaced apart from the front of the bracket 300 to rotate in contact with the outer circumferential surface of the support frame 200, A second guide roller 330 mounted on both sides of the support frame 200 and disposed behind the support frame 200,
The second guide roller 330 includes a first roller portion 331 whose front surface is in contact with an end of the opening 201 of the support frame 200 and a second roller portion 331 formed on the front surface of the first roller portion 331 in a step- And a second roller portion 332 is formed integrally with the inner surface of the opening 201 so that the outer circumferential surface of the second roller portion 332 rotates in contact therewith,
The outer circumferential edge of the first guide roller 320 rotates in contact with the front surface of the support frame 200 when the bracket 300 is lifted and lowered by the elevating means 700 and 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 in contact with the inner surface of the opening portion 201 to contact the outer circumferential surface of the opening portion 201, 300) is prevented from flowing. delete The bracket 300 is formed with a bracket 310 protruding forward and the main link 400 is hinged to the bracket 310 by a first hinge 311 so as to be rotatable Seesaw movement,
Angle adjusting means (500) mounted on the bracket (300) for seesawing the main link (400) about the first hinge (311);
And a balancing member (600) attached to a rear end of the main link (400) to balance the weight of the display (T). The apparatus according to claim 3, wherein the angle adjusting means (500) comprises a first rack gear (510) formed in a fan shape and fixed to the rear of the main link (400) A first pinion gear 520 mounted on the bracket 300 and a second motor 530 mounted on the bracket 300 to rotate the first pinion gear 520,
When the second motor 530 rotates, the main link 400 performs a seesaw motion about the first hinge 311 by the first pinion gear 520 and the first rack gear 510 And adjusting an audiovisual degree of the display (T). The balance unit 600 according to claim 3, wherein the balancing member 600 includes a weight member 610 having a guide hole 611 penetrating in a vertical direction and disposed at a rear lower portion of the bracket 300, And a guide rod 620 mounted on the housing 100 and inserted into the guide hole 611 to guide the weight member 610. One end of the guide rod 620 is attached to the rear end of the main link 400, And a guide roller 640 mounted on the bracket 300 and guiding the connecting rope 630. The guide rope 640 is attached to the upper portion of the weight member 610,
The guide roller 640 guides the connecting rope 630 and moves the weight member 610 in the vertical direction when the weight member 610 moves up and down according to the angle of the main link 400 by the angle adjusting means 500 610,
Wherein the guide rod (620) guides the weight member (610) in a vertical direction when the weight member (610) is moved up and down by the elevating means (700). [3] The speaker system of claim 1, wherein the housing (100) is provided with mounting holes (121) in which the speaker (S)
Further comprising speaker exposing means (800, 900) for allowing the speaker (S) to enter into or out of the housing (100). 7. The apparatus of claim 6, wherein the speaker exposing means (800)
And a sliding member 810 having a guide groove 820 and a second rack gear 840 installed in the housing 100 through the installation hole 121 and fitted to the speaker S, )Wow;
A fixing plate 890 fixed to the housing 100 and provided with a guide protrusion 830 slidable in the guide groove 820 and a second pinion gear 850 engaged with the second rack gear 840;
And a third motor 860 mounted on the fixed plate 890 to rotate the second pinion gear 850,
The second pinion gear 850 interlocks with the second rack gear 840 by driving the third motor 860 so that the sliding member 810, to which the speaker S is mounted, And the protruding portion protrudes inward and outward from the housing (100). [8] The apparatus of claim 7, wherein the sliding member (810)
A guide installation groove 811 opened in the direction of the housing 100 and provided with the second rack gear 840 and the guide groove 820;
A speaker installation groove 812 formed on a side surface of the guide installation groove 811 and on which a speaker S is installed;
A cover 813 mounted on the upper and lower surfaces of the sliding member 810 to close the upper and lower surfaces of the guide mounting groove 811 and the speaker mounting groove 812; Lt; / RTI >
The mounting hole 121 is closed by the front surface, the rear surface and the side surface of the sliding member 810 and the cover 813 when the sliding member 810 protrudes out of the housing 100,
Wherein the side surface of the sliding member (810) closes the mounting hole (121) when the sliding member (810) enters the inside of the housing (100). The apparatus of claim 8, wherein the speaker (S) is slidably coupled to the speaker installation groove (812) in a vertical direction. 7. The apparatus of claim 6, wherein the speaker exposing means (900)
A rotary member 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 on the hinge coupling portion of the rotary member 910;
A driven gear 930 mounted on the housing 100 to be engaged with the driven gear 920;
And a fourth motor (940) mounted on the housing (100) and rotating the main gear (930)
The rotation of the rotary member 910 by driving the fourth motor 940 causes the speaker S mounted on the rotary member 910 to enter the housing 100 through the installation hole 121 Wherein the display position adjusting device comprises: [Claim 11] The apparatus according to claim 10,
A first blocking plate 911 formed with a speaker mounting groove 913 in which the speaker S is installed and closing the mounting hole 121 when the speaker S enters the housing 100;
A second blocking plate 912 for closing the mounting hole 121 when the speaker S protrudes from the housing 100;
A hinge shaft 914 formed on the upper and lower surfaces of the first closure plate 911 and the second closure plate 912 and hinged to the lower surface of the mounting hole 121 of the housing 100, ); Lt; / RTI >
When the rotary member 910 rotates about the hinge axis 914 and the speaker S enters the housing 100 through the installation hole 121, And the second closing plate 912 is inserted into the mounting hole 121 when the speaker S is protruded to the outside of the housing 100 through the mounting hole 121, Wherein the display position adjusting device is configured to close the display position adjusting device. [12] The speaker according to claim 11, wherein the speaker (S) is slidably coupled to the speaker mounting groove (913)
And a lid (915) is fixed to the upper and lower surfaces of the speaker installation groove (913) to prevent the speaker (S) from being separated. The method of claim 7,
A sensor unit for sensing on and off of the display T;
A control unit for controlling the third motor (860) by a signal of the sensor unit; Further comprising:
The control unit controls the third 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, And controls the third motor (860) when the power of the display (T) is turned off so that the speaker (S) enters the interior of the housing (100).

Images