JP2012013720A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device allowing easy adjustment of a depression or elevation angle of the device while keeping a good appearance.SOLUTION: An image display device 1 allowing adjustment of a depression or elevation angle of a housing 2 including a display 3 is provided, in which a bottom portion 2a of the housing 2 is formed so as to have a convex-curved surface, and a balance weight 4 is provided in the inside of the housing 2 so as to change its position substantially along the internal surface of the bottom portion 2a. When the position of the balance weight 4 provided so as to change its position substantially along the internal surface of the bottom portion 2a is changed, the convex-curved surface of the bottom portion 2a of the housing 2 allows the gravitational center position of the housing 2 to be moved to incline the housing 2, allowing the depression or elevation angle of the image display device 1 to be easily adjusted to a desired angle. The balance weight 4 for adjusting the depression or elevation angle is accommodated in the housing 2, thereby preventing members for adjusting the depression or elevation angle from being exposed on the outside of the housing 2, thus providing a good appearance.

Description

  The present invention relates to an image display device capable of adjusting the elevation angle of a housing provided with a display.

  2. Description of the Related Art Conventionally, as a display device having a tilt mechanism, a display device (Patent Document 1) in which a display main body is mounted on a base so that tilt adjustment is possible, a display, and a base with an arc-shaped bottom connected to the display And a display device (Patent Document 2) including a weight attached to the bottom side of the pedestal has been proposed.

  However, the display device of Patent Document 1 and the display device of Patent Document 2 have a problem in that the manufacturing cost is high because the display (display) and the base (pedestal) are separate.

  From such a situation, like a display device composed of a display, a base having a convex bottom surface, a connecting member connected between the display and the base, and a weight attached to the connecting member, A display device in which a display and a base are integrated has also been proposed (Patent Document 3).

Japanese Unexamined Patent Publication No. 04-208985 Japanese Patent Laid-Open No. 02-271384 JP 2007-140439 A

  However, the display device disclosed in Patent Document 3 has a poor appearance because the connecting member and the weight are exposed to the outside.

  The present invention has been made in view of the above problems, and a problem to be solved is to provide an image display apparatus that can easily adjust the elevation angle of the image display apparatus and that has a good appearance.

  In order to achieve the above object, an image display device according to the present invention is an image display device capable of adjusting the elevation angle of a housing provided with a display, wherein the bottom portion of the housing has a convex curved surface, and the bottom portion thereof The balance weight is provided inside the casing so that the position can be changed substantially along the inner surface of the casing.

  In the image display device of the present invention, a plurality of ribs extending in the length direction of the casing are formed at regular intervals on the inner surface of the bottom portion, and a balance weight is installed between the arbitrary ribs. It is preferable that the position of the balance weight can be changed substantially along the inner surface. In addition, an image display device in which the balance weight is held by a holding plate fixed to the rotation shaft and the rotation shaft is rotated by a motor so that the position of the balance weight can be changed substantially along the inner surface of the bottom portion is also preferable.

  In the image display device of the present invention, since the shape of the bottom of the housing is a convex curved surface, if the position of the balance weight provided substantially along the inner surface of the bottom is changed, the center of gravity of the housing moves and the housing Therefore, the elevation angle of the image display device can be easily adjusted to a desired angle. In other words, when it is desired to tilt the housing forward, the position of the balance weight may be changed to the front side substantially along the inner surface of the bottom portion, and when the housing is inclined backward, the position of the balance weight is moved to the inner surface of the bottom portion. What is necessary is just to change to the back side substantially along. In addition, since the image display device of the present invention is provided with a function capable of adjusting the elevation angle on the casing itself provided with the display, the display and the base are formed separately as in the conventional display device. There is no need to do this, and the manufacturing cost can be reduced. In addition, since the balance weight for adjusting the elevation angle is accommodated inside the casing, a member for adjusting the elevation angle of the casing is not exposed to the outside, and the appearance is good. Such an image display device of the present invention is suitably used not only when installed on a flat surface but also on an inclined surface.

  As described above, various modes are conceivable for providing the balance weight inside the casing so that the position can be changed substantially along the inner surface of the bottom of the casing. For example, a plurality of ribs extending in the length direction of the housing are formed at regular intervals on the inner surface of the bottom portion, and a balance weight is installed between the ribs so that the inner surface of the bottom portion is substantially There is an image display device in which the position of the balance weight can be changed along. In such an image display device, the position of the balance weight is changed simply by installing a balance weight between arbitrary ribs, so that the elevation angle of the image display device can be easily adjusted. In addition, the manufacturing cost can be saved to the maximum by making the structure of the image display device as simple as this.

  Further, the image display device in which the balance weight is held on the holding plate fixed to the rotation shaft and the rotation shaft is rotated by a motor so that the position of the balance weight can be changed substantially along the inner surface of the bottom portion is also described above. As with the image display device, the balance weight position can be easily changed. In particular, since this image display device uses a motor, the cost is slightly increased, but the elevation angle can be adjusted more easily and fine adjustment is possible.

1 is a perspective view of an image display device according to an embodiment of the present invention. It is a side view of the display apparatus when a cover body is removed. It is a side view showing a state when the display device is tilted forward. It is a side view which shows a state when the display apparatus is tilted backward. It is a front view of the image display apparatus which concerns on other embodiment of this invention. It is AA sectional drawing of FIG.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

The image display device 1 of the present invention shown in FIG. 1 is a small-sized liquid crystal television in which a side surface of a housing 2 having a display 3 on the front surface has a substantially fan shape, and the elevation angle of the housing 2 can be arbitrarily set. It was developed so that it can be adjusted. In the image display device 1, the display 3 is exposed in the opening on the front surface of the housing 2, and although not shown, a liquid crystal module, a main substrate, a speaker, and the like are incorporated therein.
The image display device 1 of the present embodiment is a liquid crystal television, but is not limited to a television as long as it can display an image, and may be a digital photo frame, for example.

  As shown in FIGS. 1 and 2, the bottom 2 a of the casing 2 is a convex curved surface formed so that the shape when viewed from the side is a substantially semicircular shape. By making the shape of 2a into a convex curved surface, it becomes possible for the housing | casing 2 to incline forward or back. Moreover, the opening part 2b is formed by notching one side surface (left side surface in this embodiment) of the housing | casing 2 in a semicircle, and the cover body 2c of the same shape is attached to this opening part 2b. . The lid 2c is detachably attached to the opening 2b of the housing 2, and can be easily removed when the position of the balance weight 4 is changed, as will be described later.

  Further, as shown in FIGS. 1 and 2, a balance weight 4 is provided inside the housing 2. The balance weight 4 is a cylindrical metal weight, and when the position of the balance weight 4 is changed along the inner surface of the bottom 2a, the center of gravity of the housing 2 moves, as shown in FIG. The housing 2 tilts forward or the housing 2 tilts backward as shown in FIG. Accordingly, since the casing 2 needs to have a weight sufficient to incline the casing 2 to a desired elevation angle and maintain a balance in this state, a balance weight 4 made of lead, which is heavy among metals, is preferably used.

  In order to change the position of the balance weight 4 along the inner surface of the bottom portion 2a, a plurality of (six in this embodiment) ribs 5 are formed on the inner surface of the bottom portion 2a. As shown in FIG. 1, the rib 5 is a protruding strip formed at a constant interval over the entire length direction of the housing 2, and in order to securely install the balance weight 4, As shown in FIG. 2, the distance between the rib 5 and the rib 5 adjacent to the rib 5 is set to be approximately the same as or slightly larger than the diameter of the balance weight 4, and the height thereof is The balance weight 4 is formed to be higher than the radius. When the balance weight 4 is installed between the ribs 5 and 5, the balance weight 4 is held between the ribs 5 and 5 and is securely installed. Can no longer move, and the housing 2 can be kept stationary while maintaining its center of gravity.

  More specifically, when it is desired to tilt the image display device 1 forward, that is, when it is desired to adjust the elevation angle from the normal angle shown in FIG. 2 to the forward tilt angle shown in FIG. Remove the lid 2c attached to 2b, and pull out the balance weight 4 installed between the ribs 5 and 5 inside thereof (the third rib 5 and the fourth rib 5 from the front), one front side The balance weight 4 is installed between the ribs 5 and 5 (the second rib 5 from the front and the third rib 5 from the front). If it does in this way, the gravity center position of case 2 will move from the center to the front side, case 2 will lean forward, and balance will be maintained in that state, and it will stand still.

  Further, when it is desired to tilt the image display device 1 further forward than the state shown in FIG. 3, the same operation as described above is performed, and the position of the balance weight 4 is set to the first rib 5 from the front and 2 from the front. If it changes between the 2nd ribs 5, the gravity center position of the housing | casing 2 will move to the front side further, and the housing | casing 2 will incline further forward.

On the other hand, when it is desired to tilt the image display device 1 backward from the normal angle shown in FIG. 2, the same operation as described above is performed, and the position of the balance weight 4 is changed from the front to the fourth rib 5 from the front. If it changes between the 5th ribs 5, the gravity center position of the housing | casing 2 will move to the back side, and the housing | casing 2 will incline back.
Needless to say, when the image display device 1 is to be tilted further backward, the position of the balance weight 4 may be changed between the fifth rib 5 from the front and the sixth rib 5 from the front.

  Thus, in the image display device 1 of the present invention, since the shape of the bottom 2a of the housing 2 is a convex curved surface, the position of the balance weight 4 provided substantially along the inner surface is a position at which a desired elevation angle is obtained. Since the center of gravity of the housing 2 moves and the housing 2 is tilted and the balance of the center of gravity is maintained and remains stationary in this state, the image display device 1 Can be easily adjusted to a desired angle. In the image display device 1 of the present invention, a function capable of adjusting the elevation angle, that is, a bottom 2a having a convex curved surface, a balance weight 4 and a rib 5 are added to the casing 2 itself provided with the display 3. In addition, since they are housed inside the housing 2, it is not necessary to form a display and a base separately from the conventional display device, and the manufacturing cost can be reduced. Since the member for adjusting the elevation angle is not exposed to the outside, the appearance is good.

  In addition, the image display device 1 as described above is preferably used not only when installed on a flat surface but also when installed on an inclined surface. That is, when the image display apparatus 1 is installed on the front and lower inclined surfaces, if it is desired that the display 3 be perpendicular to the ground, as shown in FIG. If the balance weight 4 is installed between the third rib 5 from the front, the display 3 becomes perpendicular to the ground. Thus, when installing the image display device 1 on an inclined surface, it is preferable to apply a non-slip process to the bottom portion 2a because there is no fear of the image display device 1 slipping down.

  FIG. 5 is a front view of an image display apparatus according to another embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line AA of FIG.

  The image display device 10 according to the embodiment shown in FIG. 5 is a small size in which the side surface shape of the housing 2 provided with the display 3 is substantially fan-shaped, similar to the image display device 1 according to the embodiment shown in FIGS. The display 3 is exposed through the opening on the front surface of the housing 2, and a liquid crystal module, a main board, speakers, and the like are incorporated therein, and the elevation angle of the housing 2 can be arbitrarily set. A motor 6 is provided for adjustment.

  As shown in FIG. 5, the motor 6 provided inside the housing 2 is connected to a rotating shaft 7 supported by two bearings 8 and 8 provided on the left and right sides via a reduction gear 6a. Yes. As shown in FIG. 6, fan-shaped holding plates 7a and 7a each having a circular opening penetrating the rotating shaft 7 and the balance weight 4 are vertically fixed to the left and right of the rotating shaft 7. The balance weight 4 is held by the holding plates 7a and 7a.

When the motor 6 of the image display device 10 composed of the above members is started, the rotation output is transmitted to the rotation shaft 7 via the reduction gear 6a, and the rotation shaft 7 rotates. When the rotary shaft 7 rotates in this manner, as shown in FIG. 6, the holding plates 7a and 7a fixed to the rotary shaft 7 also start to rotate, and the balance weight 4 held by the holding plate 7a is moved to the rotary shaft. 7 is swung substantially along the inner surface of the bottom 2a of the housing 2. At this time, if the rotational output of the motor 6 is directly transmitted to the rotating shaft 7 without passing through the reduction gear 6a, the rotating shaft 7 rotates too much and fine adjustment of the position of the balance weight 4 becomes difficult. As in the image display apparatus 10 of FIG. 1, the reduction gear 6a is interposed between the motor 6 and the rotating shaft 7, so that the position of the balance weight 4 can be finely adjusted, and the housing 2 can be set to an arbitrary elevation angle. Will be able to adjust.
The other configuration of the image display device 10 shown in this embodiment is the same as that of the image display device 1 of the embodiment shown in FIGS. 1 to 4 described above, and therefore the same members are denoted by the same reference numerals and description thereof is omitted. .

  As described above, the image display device 10 of the present invention in which the position of the balance weight 4 can be changed substantially along the inner surface of the bottom 2a of the casing 2 by rotating the rotary shaft 7 with the motor 6 includes the casing When the angle of elevation of 2 is desired to be adjusted forward and downward, the motor 6 is started, and the rotational output 7 rotates the rotating shaft 7 and the holding plate 7a to change the position of the balance weight 4 to the front side. If the motor 6 is stopped at a cornered position, the center of gravity of the housing 2 moves to the front side and the image display device 10 tilts forward. On the other hand, when it is desired to tilt the housing 2 backward, the motor 6 may be rotated in the reverse direction. As described above, the image display device 10 according to the present embodiment is slightly more expensive than the image display device 1 according to the embodiment shown in FIGS. 1 to 4 described above. Since the angle can be adjusted, for example, if the motor 6 can be started with a remote controller, the elevation angle of the image display device 10 can be finely adjusted even while lying on the bed.

1,10 Image display device 2 Housing 2a Bottom (convex curved surface)
2b Opening 2c Lid 3 Display 4 Balance weight 5 Rib 6 Motor 6a Reduction gear 7 Rotating shaft 7a Holding plate 8 Bearing

Claims (3)

An image display device capable of adjusting an elevation angle of a housing provided with a display,
The shape of the bottom of the housing is a convex curved surface,
An image display device characterized in that a balance weight is provided inside the casing so that the position can be changed substantially along the inner surface of the bottom.   A plurality of ribs extending in the length direction of the casing are formed at regular intervals on the inner surface of the bottom portion, and a balance weight is installed between the arbitrary ribs, so that the balance weight is substantially along the inner surface of the bottom portion. The image display device according to claim 1, wherein the position can be changed.   The balance weight is held on a holding plate fixed to the rotating shaft, and the rotating shaft is rotated by a motor so that the position of the balance weight can be changed substantially along the inner surface of the bottom portion. The image display device described.

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