KR20010105089A - Loudspeaker system for flat pannel display appliance - Google Patents

Abstract

The present invention relates to a speaker system of a flat panel type video display device, comprising: an exterior case accommodating a flat panel type display unit, a pair of speakers that can enter and exit from inside and outside the storage units formed on both sides of the exterior case, and the speaker It includes an interlock mechanism for interlocking the.

Description

Speaker system of flat panel display device {LOUDSPEAKER SYSTEM FOR FLAT PANNEL DISPLAY APPLIANCE}

The present invention relates to a speaker system of a flat panel type video display device. Specifically, the flat type speaker is a flat panel type video display device so that the flat speaker can be moved in and out of an exterior case of the flat panel type video display device as needed. The present invention relates to a speaker system of a flat panel type video display device which is integrally assembled in the device.

Conventional flat panel type video display devices equipped with speakers generally have a large volume of speakers, so that the speaker is provided on a pedestal supporting the flat panel display unit (see FIG. 1), or the speaker is separate from the flat panel display unit. A system is provided (see FIG. 2). As shown in FIGS. 1 and 2, the image display apparatus of the related art has a flat panel display unit 1, an external case 2 for horizontally fixing the display unit, and a pedestal for supporting the external case. And a speaker 4. However, in the case where the speaker is installed inside the pedestal according to the configuration of the prior art, it is necessary to limit the capacity or size of the speaker in order to appropriately size the pedestal, and when the speaker system is separately configured, the video display device In addition, since the speaker system is separately connected, the wiring relationship becomes complicated and the space around the video display device is excessively occupied.

In addition, as the speaker manufacturing technology has been remarkably developed in recent years, it is possible to manufacture a thin slim speaker, and the present situation is being applied to various A / V systems. There is a demand for the development of a technology that can be freely stored inside.

Accordingly, an object of the present invention is to provide a speaker system of a flat panel type video display device capable of assembling a thin and slim sized flat speaker integrally with a flat panel type video display device as well as eliminating the disadvantages of the prior art described above. .

1 is a perspective view showing a conventional flat panel type video display device having a structure in which a speaker is mounted.

2 is a perspective view of a conventional flat panel type video display device having a separate speaker system.

3 is a front view showing a speaker system of the flat panel type video display device of the present invention showing a state where the flat speaker protrudes to the outside.

4 is a side perspective view of FIG. 3;

Figure 5 is a perspective view showing the structure of the upper end of the speaker.

FIG. 6 is a side perspective view illustrating that the speaker of FIG. 5 is assembled in an image display device while protruding to the outside.

7 is a side view showing a speaker housing of the outer case;

8 is a view showing an installation structure of a flat speaker assembled inside the outer case.

9 shows a latch switch;

<Explanation of symbols for the main parts of the drawings>

10: flat panel display unit

20: exterior case

22: Hanging projection

23: tapered protrusion

24: jam switch

25: press

26: arm

28: speaker compartment

29: roller bearing

30: pedestal

40: speaker

41: open end

42: guide rail

43: closed end

44: jamming groove

50: pinion gear

51: rack gear

52: circumferential return coil spring

53,55: fixed boss

54,56: Stop Rib

100: speaker system of a flat panel video display device

In order to achieve the above object, the present invention provides a speaker system of a flat panel type video display device having a flat speaker that can be integrally assembled, which system includes: an exterior case for housing a flat panel display unit; And a pair of speakers that can enter and exit from inside and outside of the housings formed on both sides of the exterior case, and an interlock mechanism for interworking the speakers.

The interlock mechanism is horizontally arranged so that one end is fixed to each of the opposite side surfaces of the pair of speakers and the pinion gear installed through a fixed boss in the center of the outer case, and interlocks with the upper and lower portions of the pinion gear simultaneously. It may consist of a pair of rack gears.

Preferably, the linkage mechanism further includes elastic means for providing a biasing force to the speaker in a direction opposite to the insertion direction of the speaker when inserting the speaker through the speaker housing.

In one embodiment, the resilient means includes one end engaged with a stop rib installed on one of the opposite sides of the speaker, the other end engaged with another stop rib located in place inside the outer case, and the stop rib. It may be a circumferential return coil spring having a body inserted into the fixed boss, in which case both ends of the coil spring are compressed around the main body fitted to the fixed boss when the speaker is inserted through the speaker housing, A biasing force is provided for the speaker in opposite directions.

In this case, the flat speaker inserted into the side of the outer case is subjected to a force to protrude outside the outer case by the biasing force of the elastic means, the speaker system of the flat panel type video display device of the present invention It is preferred to further include locking means to prevent movement out of the case.

Locking means according to one embodiment may be made of a locking groove formed on the upper side of the flat speaker and a locking switch pivotally provided on the upper side of the outer case, wherein the locking switch once having a tapered projection downward The other end part which has a part, the press part inclined upward, and the arm which extends below this press part, and the return spring is fitted is provided. In this locking means, when the speaker is inserted into the side of the outer case through the speaker housing, the tapered projection of the locking switch is engaged with the locking groove of the speaker to stop the insertion movement of the speaker, and stop in the inserted state. The speaker may be moved outwardly by the biasing force of the elastic means when the engagement of the locking groove and the tapered protrusion of the locking switch is released by pressing the pusher upward.

In this embodiment, the flat speaker may include a guide rail formed with a recess along at least one of the upper and lower portions of the speaker along the insertion direction of the speaker, and the recess of the guide rail may include an open end and an outer case outside the outer case. It is preferable to have an inner closed end. In this case, the speaker accommodating portion may include a catching protrusion fitted to the concave portion in at least one of the upper and lower portions of the accommodating portion, and when the speaker protrudes outward from the outer case by the biasing force of the elastic spring, The closed end may be engaged with the locking protrusion of the speaker housing to prevent the speaker from being separated from the exterior case.

In addition, a roller bearing may be further installed inside the outer case adjacent to the speaker housing to facilitate moving of the speaker.

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

3 is a front view of the speaker system 100 of the flat panel type video display device of the present invention in which the flat speaker 40 is integrally assembled. According to FIG. 3, the flat speaker 40 is accessible through the side of the outer case 20 in the direction of the arrow shown in the drawing, and is shown in a state protruding outside the outer case 20 in the drawing. The speaker system 100 of the video display device of this embodiment accommodates a flat panel type display portion 10 such as an LCD, and has a speaker accommodating portion 28 having a locking projection 22 on the upper and lower portions (Fig. 7). Specifically, the upper and lower guide shells 42 each having an outer case 20 formed on both sides and an insertion direction recess having a shape corresponding to the engaging protrusion 22 are formed on the upper and lower sides, respectively. A pair of opposing left and right flat speakers 40, which are accessible through the payment 28, and not shown in FIG. 3, but the pair of speakers are moved in opposite directions by the movement of one speaker. A speaker interlocking mechanism for interlocking with each other, and a locking means for limiting movement of the speaker, and other elements commonly provided in a video display device of the prior art. For supporting the speaker system 100 may further comprises a pedestal (30). An outer side portion of the flat speaker may be provided with an adjustment knob 45 for adjusting the volume or sound quality of the speaker.

FIG. 4 is a side perspective view of the speaker system 100 of the image display device of FIG. 1, in which the flat speaker 40 protrudes outside the exterior case of the display unit 10.

5 is a side perspective view showing an embodiment of an upper structure of the flat speaker 40, Figure 6 is a side perspective view showing a state in which the flat speaker 40 of Figure 5 is assembled to the side of the outer case. . According to FIG. 5, the flat speaker 40 is guided to at least one of the upper and lower portions of the speaker such that the speaker is easily inserted into the speaker housing 28 (see FIG. 7) of the outer case 20. The rail 42 is provided in the insertion direction (only the upper portion is shown in the figure), and as shown in FIG. 7 described later, the housing 28 of the outer case 20 into which the speaker is inserted. The engaging projection 22 is formed on the upper side and the lower side of the hole, respectively, in cooperation with the guide rails at the time of insertion (similarly, only the upper portion is shown in the figure). As shown in FIG. 5, the guide rail 42 of the flat speaker 40 is a recess formed over the entire length of the guide rail along the insertion direction, and the open end 41 in the outer direction of the exterior case 20. And a closing end 43 in the outer case inner side, and a locking groove 44 at a position adjacent to the open end side. Between the open end 41 and the closed end 43 is empty. The closed end 43 is engaged with the engaging projection 22 of the speaker housing 28 when the speaker 40 is moved out of the outer case 20, so that the speaker is outside the outer case. Do not let go. In addition, the locking groove 44 serves to limit the degree to which the speaker is inserted into the outer case 20 as opposed to the closed end, and the locking switch 24 to be described later when the speaker is inserted into the outer case. Engaged with the tapered protrusion 23 (see FIG. 9), the speaker no longer enters the exterior case.

The pair of left and right flat speakers 40 disposed opposite to each other are connected to a speaker interlock mechanism for interlocking the speakers so that all of the pair of speakers are moved in opposite directions even if only one speaker is moved. This speaker interlock mechanism is shown in detail in FIG. 8, and one end of each of the pinion gear 50 and a pair of opposite sides of the pair of speakers installed through a fixed boss 55 at approximately the center of the outer case 20. A pair of rack gears 51 fixed to each other and horizontally arranged to interlock with the upper and lower portions of the pinion gear 50 at the same time, and to face the insertion direction when the speaker is inserted into the speaker accommodating portion 28; It is composed of an elastic means for providing a biasing force in the direction. This resilient means has one end engaged with a stop rib 54 installed on one of the opposite sides of the speaker, the other end engaged with another stop rib 56 located in place inside the outer case and the stop rib 54. 56 is a circumferential return coil spring 52 having a body inserted into the fixing boss 53 between the body and the coil spring when the speaker is inserted into the speaker housing 28. Both ends of the spring are compressed between the side of the speaker center and the stop ribs installed in place inside the outer case, thereby providing a spring bias force in a direction opposite to the direction of insertion of the speaker.

The speaker inserted into the outer case is subjected to a force repulsed in the opposite direction by the biasing force of the spring. In order to fix the speaker inside the outer case, the speaker is not moved out of the outer case by the spring deflection force. It requires a locking means. The locking means comprises a locking groove 42 formed on one side of the guide rail 42 and a locking switch 24 provided pivotally on an upper side of the outer case 20. As shown in Fig. 9, the locking switch 24 has one end portion having a downwardly tapered protrusion 23, an upwardly inclined pressing portion 25 and a downwardly extending spring, and a return spring is fitted. And the other end having an arm 26 therein. By the locking means, the speaker inserted into the outer case through the speaker housing portion is engaged with the tapered protrusion 23 of the locking switch 24 in the locking groove 42 of the guide rail, thereby conversely to the insertion direction. The movement of the speaker by the spring biasing force acting can be stopped, and the locking groove is pressed upward by pressing the pressing portion 25 of the locking switch 24 so that the locking groove 42 and the locking switch are turned upward. The engagement with the tapered protrusion 23 of 24 is released, and the stop state is released. On the other hand, by installing a plurality of roller bearings 29 on the upper and lower both side portions inside the outer case 20, the speaker can be moved in a smooth and flexible operation when entering and exiting the outer case.

The main components of the present invention as described above are assembled in the following manner. First, the pinion gear 50 is rotatably inserted into and fixed to a fixing boss 55 installed at an inner center portion of the outer case 20, and a plurality of roller bearings 29 are installed at both upper and lower side portions of the outer case. A flat speaker 40 having one end of the rack gear 51 connected to the inner side is inserted and installed through the speaker housing 28 on the side of the outer case 20, and the rack gear 51 and the pinion gear 50 are installed. Assemble to engage with each other. Thereafter, the center of the coil spring 52 which is compressed and expanded in the circumferential direction is fixed to the fixing boss 53 installed in place in the outer case, and both ends of the coil spring are attached to the stop ribs 54 and 56 provided inside the speaker and the outer case. And a resilience force is generated between the outer case and the speaker. When the assembly is completed as described above, when one side of the flat speaker is pressed by hand, the rack gear 51 connected to the inner side of the pressed speaker is moved to the inside of the outer case, and meshes with the rack gear 51 to rotate. By rotating the pinion gear 50, the other speaker whose other rack gear is meshed with the pinion gear 50 is also moved inside the outer case, so that the speaker on the other side moves in conjunction with only one speaker. Done. When the speaker is pressed and moved inside the outer case for a predetermined distance, the protrusion 23 of the locking switch 24 provided on the upper side of the outer case is caught by the catching groove 44 provided in the guide rail 42 of one speaker. As a result, the inserted speaker can be stored and held inside the outer case, and the engagement between the locking groove 44 and the protrusion 23 is released by pressing the pressing portion 25 of the locking switch to rotate the switch, thereby providing a spring. By the elastic force of the speaker is projected to both sides of the outer case.

According to the configuration of the present invention as described above, by installing the speaker inside the flat panel type video display device, the use area of the video display device system is increased, it is possible to assemble and install a speaker of a relatively different size, the wiring This simplification allows the efficient use of the flat panel video display device system.

Claims (7)

A speaker system of a flat panel type video display device, An exterior case accommodating a flat panel display; A pair of speakers arranged to be accessible from inside and outside of both side housing portions of the outer case; And a linkage mechanism for interlocking the speakers with each other. According to claim 1, The speaker interlock mechanism is fixed to the pinion gear installed in the center of the inner case through a fixed boss, one end of each of the opposite side of the pair of speakers, at the same time engaged with the top and bottom of the pinion gear And a pair of rack gears arranged horizontally to interlock with each other so as to interlock with each other. 3. The speaker system of claim 2, wherein the speaker linkage mechanism further comprises elastic means for providing a biasing force to the speaker in a direction opposite to the direction in which the speaker is inserted. The stopper according to claim 3, wherein the elastic means includes one end engaged with a stop rib provided on one of the opposite sides of the speaker, the other end engaged with another stop rib located in place inside the outer case, and the stop rib. A circumferential return coil spring having a main body inserted into the fixed boss, wherein both ends of the coil spring are compressed about the main body fitted to the fixed boss when the speaker is inserted through the speaker housing, and the speaker is opposed to the insertion direction of the speaker. A speaker system of a flat panel type video display device, characterized in that to provide a bias force. 4. The flat panel display device as claimed in claim 3, further comprising a locking means for preventing the speaker from moving backward by the biasing force of the elastic means with respect to the speaker when the speaker is inserted. Speaker system. The method of claim 5, wherein the locking means comprises a locking groove formed on the upper side of the speaker, and a locking switch provided pivotally on the upper side of the outer case, the locking switch having one end having a projection tapered downward; And an inclined upwardly portion, the other end having an arm extending downwardly and having a return spring fitted therein, the tapered of the locking switch being inserted into the locking groove of the speaker when the speaker is inserted into the outer case. When the projection is engaged, the insertion movement of the speaker is stopped, and the speaker stopped in the inserted state of the elastic means is released when the engagement between the locking groove and the tapered projection of the locking switch is released by turning the locking switch upward. The plane characterized in that it is moved in the outer direction of the outer case by the biasing force Speaker system of neolhyeong video display devices. The speaker system of claim 1, further comprising a roller bearing that facilitates movement of a speaker inside the outer case adjacent to the speaker housing.