JPH0353777A - Rotary display device - Google Patents

Abstract

PURPOSE:To make the rotary base small in size and to reduce cost by fitting a caster respectively near four corners on the bottom face of a cabinet and forming the area of the rotary base so as to be narrower than the bottom face area of the cabinet thereby allowing the rotary base not to be abutted against the casters and providing an adjuster foot to the bottom of the rotary base. CONSTITUTION:In the case of the movement of a rotary display device, a rotary base 11 is removed from a cabinet 10. Then adjuster feet 18 are retracted upward to land on casters 12 on the floor. The display device is moved by the casters 12 and placed on a desired location, then the rotary base 11 is fitted to the bottom of the cabinet 10 from the rear side. The rotary base 11 is fitted by fitting a ceiling plate 13 of the rotary base between support metallic fixtures 22 at the left and right sides of the bottom of the cabinet 10. Then projecting the adjuster feet 18 downward to float the caster 12 a little from the floor. Thus, the cabinet 10 is rotated in the horizontal direction on the rotary base 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotary display device in which a cabinet of a display device main body can be rotated from side to side in a horizontal direction in order to change the orientation of a screen to a direction that is easy to view.

[Conventional technology] A conventional rotary display device is shown in FIG.

The cabinet 1 of the display device main body is supported by a rotary member 2 so as to be rotatable around a vertical central axis (not shown), that is, to be rotatable horizontally left and right. As shown in the figure, the rotating table 2 has the same planar size as the cabinet 1.

[Problems to be Solved by the Invention] The rotary display device is mainly applied to large-sized display devices, and for example, a projection TV with a width of 110 cm and an R:A direction of 70 cm, which is a particularly large cabinet size. In this case, the rotary table 2 having the same planar size as the cabinet 1 as described above would be quite large and the cost would be high.

Further, if an attempt is made to reduce the size of the rotary table 2, there is a risk that the cabinet 1 will fall back and forth and left and right, so the size of the rotary table cannot be simply reduced.

The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a rotary display device in which the planar size of the rotating table can be made sufficiently smaller than the planar size of the cabinet without fear of overturning.

[Means for Solving the Problems] The present invention solves the above problems in a rotary display device in which a rotary stand is provided at the bottom of a cabinet of a display device main body to support the cabinet rotatably around a vertical central axis. , casters are attached to each of the four corners of the bottom of the cabinet, the shape of the turntable is narrower than the bottom of the cabinet, and the casters do not hit the turntable when the cabinet rotates; This is a rotary display device in which an adjuster foot 1 that can protrude downward is provided at the bottom of the stand.

[Function] In the above configuration, when transporting this rotary display device, the adjuster foot should be retracted upward (however, if the rotary base is removable as in claim 2, the rotary base should be removed). ), attach the casters at the four corners of the bottom of the cabinet to the floor, and roll the casters to move the cabinet.

After placing the display device at the desired installation location, the adjuster foot is pushed downward to lift the casters off the floor, and the cabinet is rotatably supported on the rotating table.

When the cabinet is rotated in this state, the cabinet rotates around the vertical central axis on the rotating table and changes the orientation of the screen.

In this case, the shape of the turntable is such that the casters do not come into contact with the turntable when the cabinet is rotated, and problems associated with attaching casters to the bottom of the cabinet do not occur.

This rotary table is smaller than the planar size of the cabinet, and is somewhat unstable when used alone, but since the casters at the four corners of the bottom of the cabinet provide support, there is no risk of the cabinet tipping over.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is a front view showing a rotary display device such as a rotary projection television according to an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an exploded perspective view of the rotary table, and Fig. 4 is a FIG. 3 is a bottom view of the cabinet. The cabinet 10 of the display device main body is horizontally rotatably supported by a turntable 11, and casters 12 are attached near the four corners of the bottom surface.

As shown in the perspective view of FIG. 3, the rotary table 11 is composed of a rotary table top plate 13 and a rotary table base 14. The rotary table top plate 13 integrally has a central axis 15 and an arc-shaped rack 16 that is arc-shaped around the central axis 15, has bent portions 13a at the front and rear, and has two adjuster holes 13b. , the left and right edges 13c extend further left and right than the bent portion 13a.

As shown in the figure, the rotary table base 14 has a shallow box shape with an octagonal planar shape in which each vertex of a rhombus is cut off. This rotary table base 14 has the central axis 15
A plurality of support rollers 17 are provided on the circumference around the center hole 14a, and adjuster feet 18 are provided at four positions on the left and right and front and rear.

Furthermore, a pinion 19 that meshes with the arcuate rack 16
A drive unit 20 is provided which incorporates a drive motor, an electromagnetic clutch, etc. that rotates the pinion 19. This drive unit 20 can be slightly slid in the direction toward the center hole 14a, and is elastically biased by a spring 21. This spring 21 functions to ensure that the pinion 19 engages with the arcuate rack 16. This drive unit 20 is connected to a control section inside the display device main body through a connector 29 having a sufficient lead length.

On the back surface of the base 10a of the cabinet 10, as shown in FIG. 4, holding fittings 22 forming a holding mechanism are attached.
c is fitted into this holding metal fitting 22, so that the rotary table top plate 1
3 is attached to the cabinet 10. Further, the base 10a of the cabinet 10 is provided with four adjuster holes 10b corresponding to the adjuster feet 18. Reference numeral 23 denotes a front grill, which is detachably attached to the cabinet 10. cabinet 1
The plane size of 0 is width W0 and depth D. (See Figure 2), and the planar size of the rotary table top plate l3 is the width W1.
, the depth is D. (See Figure 3), and the turntable base 1
4 has a width of W2 and a depth of W2 (see Figure 3), and the relationship between these dimensions is W 0 > W 2
> W +, and D o > D + > D 2. Further, the height H2 of the turntable 11 (the height when the turntable top plate 13 and the turntable base 14 are assembled: see FIG. 3) is equal to the height H0 of the skirt portion 10c of the cabinet 10.
smaller. Further, the distance W3 between the left and right holding fittings 22 on the bottom surface of the cabinet 10 is such that the width W3 is such that the left and right edges 13c of the rotary table top plate 13 can be slidably fitted.
Slightly greater than 1.

The caster 12 is the 5th U! As shown in U (a) and (opening), a temporary fixing device t#2''4 is provided for temporarily fixing the direction of the caster 12. This temporary fixing mechanism 24 is
It has a structure in which a plunger 27 is biased by a spring 28 and housed in a holder 26 fixed to a common plate 25, and the flange 27 engages with a recess 12a formed on the caster 12 side, temporarily fixing the caster 12. I do. This temporary fixing mechanism 24 is added for the purpose of temporarily fixing the set so that it faces in the direction of rotation when it rotates.

As shown in FIG. 6, the adjuster foot 18 has a groove 18a serving as a screwdriver at its upper end, and a nut-shaped portion 18b also serving as a screwdriver at its lower end. This adjuster foot 18 is attached to the turntable base 14.
It is screwed into a nut 27 fixed on the side (see Figure 3).
.

Next, the operation will be explained.

When transporting this rotary display device, the rotary table 11 is removed from the cabinet 10 and peeled off. however,
The rotary table 11 may be left in the cabinet 10, but in that case, the adjuster foot 18 is pulled upward and the casters 12 are placed on the floor.

When the display device is moved by rolling the casters 12 and positioned at the desired installation location, the turntable 11
is attached to the bottom of the cabinet 10 from the rear side (if the rotating table 11 has been removed from the cabinet 10 in advance).To do this, the rotating table top plate 13 must be fitted between the left and right holding fittings 22 at the bottom of the cabinet 10. Next, the adjuster foot 18 is pushed downward to raise the caster 12 slightly from the floor as shown in FIG.
It can be rotated horizontally left and right on the top.

To perform the adjustment work of protruding the adjuster foot 18 downward or retracting it upward, the front grill 23 of the cabinet 10 must be removed and the cabinet base 10
The adjuster foot 1 is inserted through the adjuster hole 10b of a and the adjuster hole 13b of the rotary table top plate 13.
This is done by inserting a screwdriver or the like into the groove 18a at the upper end of the 8 and rotating it.

To explain the rotational operation of the cabinet 10, when the drive unit 20 is activated and the pinion 19 rotates, the arcuate rack 16 is driven by the pinion 19, and the rotary table top plate 13, which is integrated with this, rides on the support rollers 17. Rotates around the central axis 15. Therefore, the cabinet 10 placed on the rotary table top plate 13 rotates about the central axis 15, and the orientation of the screen can be changed.

In this case, the plane size of the rotary table 11 is W.
2. The depth is 82 and the width is W. ．． Since it is sufficiently small compared to the planar size of the cabinet 10 whose depth is D0, there remains a slightly unstable element with the rotary table 11 alone.
Since there are casters 12 at the four corners of the bottom of the cabinet 10, it is possible to reliably prevent the cabinet from falling over.

In addition, since the planar size of the turntable 11 is an octagon with the apex of a diamond cut off, the cabinet 10
When rotating the rotary base 11, only the rotary base 11 is never exposed from the cabinet body 10, and as is clear from FIG.
It will be hidden under the , improving the appearance.

Note that the skirt portion 10c of the cabinet 10 can also be made detachable from the cabinet body. At this time, the adjuster foot 18 can be adjusted by removing the skirt portion, inserting a spanner or the like directly into the open periphery of the bottom of the cabinet, and turning the nut 1/shaped portion 18b at the bottom of the adjuster foot 18.

[Effects of the Invention] Since the present invention is designed as described above, it has the following effects.

It has become possible to simultaneously sufficiently reduce the planar size of the rotary table and reliably prevent the display device main body from falling over. This made it possible to reduce the cost of the turntable.

In addition, the rotary table is composed of a rotary table top plate and a rotary table base,
By making the rotary table top plate removable to the bottom of the cabinet, the rotary table can be attached to and removed from the bottom of the cabinet.In the manufacturing process, the rotary table can be manufactured independently from the large cabinet, and the rotary table part The manufacturing process becomes more efficient. In addition, it is easy to select either a configuration that uses a rotary table or a configuration that does not use it, and it is also possible to make it an option as a product specification.

In addition, if the planar shape of the turntable is an octagon with each vertex of a diamond cut off, even when the cabinet is rotated, the turntable remains hidden in the bottom of the cabinet when viewed from the top, improving the appearance. This also improves safety by preventing accidents such as fingers getting caught in rotating parts.

[Brief explanation of drawings]

Fig. 1 is a front view of a rotary display device showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an exploded perspective view of the rotary table in Fig. 1, and Fig. 4 is a bottom view of the cabinet. A perspective view of the main parts seen from the side, Figure 5 (A) is a sectional view of the caster, Figure 5 (mouth) is an end view cut along the ■-V line in Figure 5 (A), and Figure 6 is a cross-sectional view of the caster. Perspective view, No. 7I
2I is a perspective view of a conventional rotary display device. DESCRIPTION OF SYMBOLS 10... Cabinet, 10a... Cabinet base, 10b... Adjuster hole, 10c... Skirt part, 11... Turntable, 12... Caster, 1
3... Turntable top plate, 13b... Adjuster hole,
13c... Edge, 14... Turntable base, 15...
- Central axis, 16a... Arc-shaped rack, 17... Support roller, l8... Adjuster foot, 18a, 18b... Screwdriver section, one... Pinion, 20... Drive unit, 22 ...Holding fitting (holding mechanism), 23...Front grill, 24...Temporary fixing mechanism.

Claims (11)

[Claims] (1) In a rotary display device in which a rotating stand is provided at the bottom of the cabinet of the display device main body to support the cabinet rotatably around a vertical central axis, casters are attached to each of the four corners of the bottom of the cabinet, and the The rotary table is formed in a shape that is narrower than the bottom surface of the cabinet and such that the casters do not hit the rotary table when the cabinet rotates, and an adjuster foot that can protrude downward is provided at the bottom of the rotary table. A rotary display device featuring: (2) The rotary table includes a cabinet-supporting rotary table top plate that is removably attached to the bottom of the cabinet via a holding mechanism, and a rotary table top plate that is rotatably supported around a central axis by support rollers. The rotary display device according to claim 1, further comprising a rotary table base. (3) An arc-shaped rack is fixed to the rotary table top plate or the rotary table base, and a drive unit having a pinion that engages with the circular arc-shaped rack and a drive motor that drives the pinion is attached to the rotary table base or the rotary table top plate. 3. The rotary display device according to claim 2, further comprising a rotary display device. (4) The rotary display device according to claim 3, wherein the drive unit incorporates an electromagnetic clutch. (5) The rotary display device according to claim 1 or 2, wherein the shape of the rotary table is an octagon with each vertex of a rhombus cut off. (6) The rotary display device according to claim 2, wherein adjuster feet are attached to the front, rear, left, and right positions of the rotary table base. (7) The rotary display device according to claim 1, wherein a screwdriver portion is formed at the top of the adjuster foot, and adjuster holes are formed in the bottom of the cabinet and the top plate of the rotary table. (8) The rotary display device according to claim 7, wherein the front grill of the cabinet is detachably provided. (9) The rotary display device according to claim 1, characterized in that a skirt portion covering the rotary table is removably provided on the peripheral edge of the bottom of the cabinet. (10) The rotary display device according to claim 9, wherein a screwdriver portion is formed at a lower portion of the adjuster foot. (11) The rotary display device according to claim 1, wherein the caster is provided with a temporary fixing mechanism for temporarily fixing the direction of the caster.