JP2007310186A - Thin display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a center of gravity from increasing by disabling a user to mount other members to a wall hanging fitting part on the back of a thin display device, such as a liquid crystal television. <P>SOLUTION: The thin display device, in which a stand 13 is freely attachably and detachably mounted to and from the lower part of the back and the wall hanging fitting 17 is mounted by using a mounting hole formed on the back of the main body, is equipped with an engagement obstruction means for obstructing the engagement of the wall hanging fitting 17 with the mounting hole in the state that the stand 13 is mounted to the rear side of the cabinet 12 formed with the mounting hole of the back of the main body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a thin display device such as a liquid crystal television, and more particularly to a thin display device in which a stand can be detachably attached and a wall mounting bracket can be detachably attached to the back surface.

  Conventional LCD TVs and other thin display devices can be used either as a stand-alone type with a stand attached, or as a stationary type with a wall-mounted bracket attached to a wall, depending on user preference. It may be configured as follows. That is, at the time of factory shipment, by attaching a stand to the lower back of the main body of the thin display device, the purchased user can use it in a stand-alone state with the stand, and if you want to change it to wall hanging, An optional wall mount is purchased and attached to the back.

FIG. 9 shows a case where a wall-hanging bracket is attached to a liquid crystal television that is self-supporting by a stand, and four female screw holes are formed in the rear cabinet 2 on the back surface of the liquid crystal television 1. The wall-hanging metal fitting 3 is fixed by abutting the wall-hanging metal fitting 3 in the female screw hole portion and screwing four screws. FIG. 10 shows a state in which the wall hanging bracket 3 is attached to the rear cabinet 2 on the rear surface of the liquid crystal television 1. From this state, the stand 4 is removed and the wall hanging bracket 3 is hung on the wall surface, so that the liquid crystal television 1 is wall hanging. Become a mold.
In addition, as a conventional technique that can be used as a wall-mounted type and a stationary type, there is a “wall-mounted desktop television receiver” described in Patent Document 1 and Patent Document 2.
Japanese Utility Model Publication No. 01-8883 Japanese Utility Model Publication No. 01-38068

  By the way, as shown in FIG. 9, four female screw holes are formed in the rear cabinet 2 on the back of the liquid crystal television 1. Not assumed. That is, the female screw hole is opened when the liquid crystal television 1 is supported by the stand 4 without being attached to the wall-mounted metal fitting 3. Therefore, depending on the user, it is possible to attach the other member 5 by screwing as shown in FIG. 11 using the female screw hole. Here, when the other member, particularly the heavy member 5 is attached in this way, there arises a problem that the center of gravity of the entire liquid crystal television 1 is increased.

  FIG. 12 shows the position of the center of gravity of the liquid crystal television 1 supported by the stand 4. The figure (a) is the state which attaches nothing to the cabinet 2 of a back surface, and a gravity center is the height which can ensure the fall angle of 30 degree | times shown by two lines. FIG. (B) shows a state in which the wall hanging bracket 3 is attached to the rear cabinet 2 on the back, and the center of gravity rises more than the case of FIG. It is the height that can be secured. FIG. 6C shows a state in which a heavy member 5 is attached to the rear cabinet 2 by a screw, and the center of gravity further rises to a position that falls outside the fall angle of 30 degrees. The liquid crystal television 1 is self-supporting. However, if you tilt it back a little, it will cause a problem of falling over easily.

  Therefore, in a state where the liquid crystal television 1 is self-supported by the stand 4, it has been desired to prevent other members from being attached to the female screw holes for attaching the wall hanging bracket 3. Therefore, the present invention provides a thin display device in which a stand can be detachably attached to the lower part of the back surface, and a wall hanging bracket can be detachably attached to the back surface. The purpose was to prevent the center of gravity from being raised by preventing other members from being attached.

  In order to solve the above problems, the present invention provides a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface. In the thin display device attached using the attachment holes, an engagement preventing means for preventing engagement of the wall-hanging metal fittings to the attachment holes in a state where the stand is attached is provided.

   Further, the present invention is a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, the wall hanging bracket using an attachment hole formed on the back surface of the main body. In the thin display device to be mounted, an engagement blocking means for blocking the engagement of the wall mounting bracket with the mounting hole in a state where the stand is mounted on the back surface side of the cabinet in which the mounting hole on the back surface of the main body is formed is provided. It is characterized by that.

  Further, the present invention is a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, the wall hanging bracket using an attachment hole formed on the back surface of the main body. In a thin display device to be mounted, a lifting member that moves up and down in conjunction with the attachment and detachment of the stand is provided on the rear surface side of the cabinet in which the mounting hole on the back surface of the main body is formed. Then, the mounting hole is closed.

  Further, the present invention is a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, the wall hanging bracket using an attachment hole formed on the back surface of the main body. In the thin display device to be attached, an engagement pin projecting at a position corresponding to the attachment hole on the front surface of the wall mounting bracket and having a large diameter at the tip and a small diameter at the base end, and the attachment hole at the back of the main body A cabinet hole that is formed through the main body rear cabinet at a corresponding position and has a hole diameter slightly larger than the large diameter portion at the tip of the engagement pin, and a back surface of the main body rear cabinet portion where the mounting hole is formed. It is supported in a slidable direction and is held in the raised position by being pushed up while the lower end abuts against the upper end of the stand with the stand attached. An engagement fitting, an urging means for urging the engagement fitting downward, and a dharma hole formed in the engagement fitting, the cabinet hole being held in the raised position. And a dharma hole in which a small-shaped part slightly wider than the small-diameter part of the engaging pin is formed continuously above the large-shaped part and is formed on the lower part of the back surface. When the bracket is attached, the fitting is raised so that the large part of the dharma hole is aligned with the cabinet hole, and in this state, the engagement pin of the wall hanging bracket is placed on the large part of the cabinet hole and the dharma hole. When the stand is removed by insertion, the engaging metal fitting is lowered by the urging means, and the small portion of the dharma hole is fitted to the small diameter portion of the engaging pin.

  As described above, according to the present invention, in the state where the stand is attached, the user is prevented from attaching other heavy member to the attachment hole of the wall hanging bracket, and the center of gravity is not increased. Therefore, it becomes possible to keep the thin display device stable and independent.

  Hereinafter, a case where the embodiment of the present invention is applied to a liquid crystal television will be described with reference to the drawings. 1 to 3 are external views of a liquid crystal television to which the present invention is applied. 1 to 3, reference numeral 100 denotes a liquid crystal panel for displaying an image, 101 denotes a front cabinet, 102 denotes a rear cabinet, 103 denotes operation buttons of the liquid crystal television body, 104 denotes a speaker, and 105 denotes a stand.

  Next, a first embodiment when the present invention is applied to a liquid crystal television will be described. FIG. 4 is an exploded perspective view of the rear part of the liquid crystal television and a perspective view showing a state in which the main part is assembled. FIG. 5 shows a state in which the wall-mounted metal fitting is inserted while the liquid crystal television is standing by a stand. Fig. (A) is a front view, and Fig. (B) is a cross-sectional view taken along line AA of Fig. (A). The liquid crystal television shown in these drawings is a simplified illustration of the liquid crystal television of FIGS.

That is, as shown in the exploded perspective view shown in the upper left of FIG. 4, the rear surface of the liquid crystal television main body 11 (corresponding to the liquid crystal panel 100 and the front cabinet 101 in FIGS. 1 to 3) is the rear cabinet 12 (FIG. 1). 3 (corresponding to the rear cabinet 102 in FIG. 3), and a stand 13 (corresponding to the stand 105 in FIGS. 1 to 3) is detachably attached to the lower end of the cabinet 12 thereafter. In the lower part of the cabinet 12 after the stand 13 is assembled, a fitting portion 14 that is receded in a box shape is formed inside.

  Above the fitting portion 14, a rectangular fitting 15 is supported in close contact with the rear surface of the rear cabinet 12 and slidable in the vertical direction. The engagement fitting 15 is connected to the rear cabinet 12 by a tension coil spring 16 and is urged downward. In the state where the stand 13 is incorporated in the fitting portion 14, the upper end of the stand 13 abuts on the lower end of the engagement fitting 15 and pushes up, so that the engagement fitting 15 is held in the raised position, and the stand 13 is fitted. In a state where it is removed from the portion 14, it moves downward by the spring force of the tension coil spring 16 and is held at the lowered position.

  In the engagement metal fitting 15, dharma holes 19 are formed at four locations corresponding to the positions of the engagement pins 18 projecting from the front surface side of the wall hanging metal fitting 17. A cabinet having the same diameter as that of the large portion 19a of the Dalma hole 19 at the position of the rear cabinet 12 corresponding to the large portion 19a below the Dalma hole 19 in a state where the engagement metal fitting 15 is held at the raised position. A hole 21 is formed. Further, the engaging pin 18 projecting from the front surface side of the wall-hanging bracket 17 has a large-diameter portion formed on the distal end side and a small-diameter portion formed on the proximal end side. The large-diameter portion on the distal end side is formed to be slightly smaller than the diameter so that the large-diameter portion 19a of the dharma hole 19 and the cabinet hole 21 can be inserted. The small diameter portion on the base end side is formed to have a diameter slightly smaller than that of the small portion 19b so that the small diameter portion 19b of the dharma hole 19 can be engaged.

As shown in the lower right of FIG. 4 and FIG. 5, when the stand 13 is connected to the fitting portion 14 of the rear cabinet 12, the engagement fitting 15 is pushed up to the upper end of the stand 13 and held in the raised position. Is done. In this state, since the large portion 19a of the Dalma hole 19 of the engagement fitting 15 and the cabinet hole 21 coincide with each other, the engagement pin 18 of the wall hanging bracket 17 can be inserted there. Since it is not engaged with the metal fitting 15, it will fall off as it is. That is, when the stand 13 is attached to the liquid crystal television main body 11 and is independent by the stand 13, it is impossible to attach the wall mounting bracket 17. In addition, the user can attach other members to the cabinet holes 21. It is also impossible to attach to. As a result, since other members are prevented from being attached by the user, the center of gravity of the liquid crystal television main body 11 is not increased and becomes unstable.

  Next, the case where the stand 13 is removed and the wall mounting bracket 17 is attached to be wall mounted will be described. 6 is a perspective view showing a state in which the stand 13 has been removed from the state of FIG. 5, FIG. 7 shows a state in which the stand 13 has been removed as in FIG. 6, FIG. 6 (a) is a front view, and FIG. ) Is a cross-sectional view taken along line BB in FIG. When removing the stand 13 and attaching the wall hanging bracket 17 to make the wall hanging, first, as shown in FIG. 5, the tip large diameter portion of the engagement pin 18 of the wall hanging bracket 17 is the large portion of the cabinet hole 21 and the dharma hole 19. In the state inserted in 19a, the stand 13 is pulled out and removed. Then, since the upper end of the stand 13 comes out of the fitting portion 14, the engagement fitting 15 moves downward by the spring force of the tension coil spring 16 and moves to the lowered position.

  As a result, the large portion 19 a of the Dalma hole 19 located at the position of the proximal end side small diameter portion of the engagement pin 18 of the wall mounting bracket 17 moves downward, and the small portion 19 b of the Dalma hole 19 moves to the base of the engagement pin 18. The wall hanging bracket 17 is engaged with the engagement fitting 15 by moving to the position of the end side small diameter portion. In this state, it is possible to support the wall hanging bracket 17 as a wall hanging television by hanging the wall hanging bracket 17 on the wall fitting.

  Next, a second embodiment when the present invention is applied to a liquid crystal television will be described. This second embodiment is the same as the first embodiment except that only the hole of the engagement fitting and the engagement pin portion of the wall hanging fitting of the first embodiment described above are changed. Only the engagement fitting will be described. FIG. 8 shows the second embodiment and is an external view as seen from the back side of the rear cabinet 12. A stand 13 is attached to the fitting portion 14, and the engagement fitting 25 is held at the raised position. In this state, a female screw hole 29 is formed above the cabinet hole 21 of the rear cabinet 12 on the engagement fitting 25 at a position shifted by the lifting stroke of the engagement fitting 25.

  As shown in the figure, in the state where the stand 13 is attached and the engagement fitting 25 is held in the raised position, these female screw holes 29 are displaced from the cabinet holes 21, so that from the back side of the rear cabinet 12. Is hidden and invisible. When the stand 13 is removed from this state, the engagement fitting 25 moves downward by the spring force of the tension coil spring 16 and moves to the lowered position, so that the cabinet hole 21 and the female screw hole 29 coincide. Here, a wall-mounted metal fitting (not shown) is brought into contact from the back side of the rear cabinet 12 and a screw is screwed into the female screw hole 29 to attach the wall-mounted metal fitting. In addition, the wall hanging metal fitting used here removes the engaging pin 18 from the wall hanging metal fitting 17 of the first embodiment, and forms a screw insertion hole at that position. Also in this embodiment, since the female screw hole 29 is hidden when the stand 13 is attached, the user is prevented from attaching other members using the female screw hole 29.

  The present invention can be used for other AV devices that can be mounted on a stand by using a stand or mounted on a wall using a wall-hanging bracket in addition to a thin display device such as a liquid crystal television.

1 is an external view of a liquid crystal television to which the present invention is applied. 1 is an external view of a liquid crystal television to which the present invention is applied. 1 is an external view of a liquid crystal television to which the present invention is applied. It is the perspective view which shows the state which assembled the exploded perspective view and principal part of the liquid crystal television back surface part in 1st Embodiment. The state in which the liquid crystal television in the first embodiment is self-supporting by a stand is shown, (a) is a front view, and (b) is a sectional view taken along line AA in (a). It is a perspective view which shows the state which removed the stand from the state of FIG. The state which removed the stand is shown, a figure (a) is a front view, and a figure (b) is a sectional view of a BB line of figure (a). It is the external view which showed 2nd Embodiment and was seen from the back surface side of the rear cabinet. A conventional example is shown, in which FIG. (A) is an exploded perspective view and FIG. (B) is a side view. A conventional example is shown, in which FIG. (A) is a perspective view and FIG. (B) is a side view. A conventional example is shown, in which FIG. (A) is a perspective view and FIG. (B) is a side view. It is a side view which shows the gravity center position and fall angle in a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 LCD television main body 12 Rear cabinet 13 Stand 14 Fitting part 15 Engagement metal fitting 16 Pulling coil spring 17 Wall hanging metal fitting 18 Engagement pin 19 Dalma hole 19a Large size part 19b Small size part 21 Cabinet hole 25 Engagement metal fitting 29 Female screw hole 100 Liquid crystal Panel 101 Front cabinet 102 Rear cabinet 103 Operation buttons 104 of LCD TV main body Speaker 105 Stand

Claims (4)

In a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, and the wall hanging bracket is attached using a mounting hole formed in the back surface of the main body. ,
A thin display device comprising engagement preventing means for preventing engagement of a wall-hanging bracket with an attachment hole in a state where the stand is attached. In a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, and the wall hanging bracket is attached using a mounting hole formed in the back surface of the main body. ,
A thin type characterized in that it is provided with an engagement preventing means for preventing the wall mounting bracket from engaging with the mounting hole when the stand is mounted on the back surface side of the cabinet in which the mounting hole on the back surface of the main body is formed. Display device. In a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, and the wall hanging bracket is attached using a mounting hole formed in the back surface of the main body. ,
A lifting member that moves up and down in conjunction with the attachment and detachment of the stand is provided on the back side of the cabinet in which the mounting hole on the back of the main body is formed, and the lifting member rises and closes the mounting hole while the stand is attached. A thin display device characterized by the above. In a thin display device in which a stand can be detachably attached and a wall hanging bracket can be detachably attached to the back surface, and the wall hanging bracket is attached using a mounting hole formed in the back surface of the main body. ,
An engagement pin that protrudes at a position corresponding to the mounting hole on the front surface of the wall-hanging bracket, has a large diameter at the tip and a small diameter at the base.
A cabinet hole formed through the main body rear cabinet at a position corresponding to the mounting hole on the rear surface of the main body and having a hole diameter slightly larger than the large diameter portion at the tip of the engagement pin;
By being in close contact with the back surface of the main body rear cabinet part where the mounting hole is formed and being supported so as to be slidable in the vertical direction, the lower end abuts against the upper end of the stand and is pushed up while the stand is mounted. An engagement fitting held in the raised position;
A biasing means for biasing the engagement fitting downward;
A lower large portion is formed at a position coincident with the cabinet hole in the state where the engagement metal fitting is held in the raised position, and a lower large portion is formed above the large shape portion. A Dharma hole in which a small-sized part slightly wider than the small-diameter part of the engaging pin is formed continuously,
A thin display device comprising:

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