JP4965186B2 - Driving device for flat display - Google Patents

Description

  The present invention is a flat display capable of driving a flat display such as a liquid crystal display or a plasma display to rotate horizontally in the horizontal direction, ascending / descending in the vertical direction, and simultaneously tilting (tilting, lifting) in the front-rear direction. It is related with the drive device.

As a conventional flat panel display drive device, there is a drive device that is rotated by an electric motor in the horizontal direction and tilted by an electric motor in the tilt direction. (For example, see Patent Documents 1 and 2)
In addition, the display is manually rotated horizontally in the horizontal direction or tilted in the front-rear direction (see, for example, Patent Document 3), the display is manually lifted in the vertical direction, or tilted in the front-back direction (tilt). (For example, see Patent Document 4).

However, none of the above-mentioned conventional devices rotate in the horizontal direction in the horizontal direction, move up and down in the vertical direction, and simultaneously tilt in the front-rear direction, and all these operations are driven by an electric motor. It was.
JP 2004-258055 A JP 2004-304679 A JP 2005-208080 A JP-A-2005-300922

  The problem to be solved by the present invention is not only that the flat display can be rotated horizontally in the left-right direction, but also moved up and down and tilted in the front-rear direction at the same time. Another object of the present invention is to provide a flat panel display drive device that can be driven reliably and reliably.

The flat panel display driving device according to the present invention is a driving device for supporting the flat display at the lower portion and rotating the flat display in the horizontal direction, moving it up and down, and tilting it back and forth. In the driving device for a flat display, the driving unit for driving, the driving unit for raising and lowering, and the driving unit for tilting are appropriately assembled .
The rotation drive unit is composed of a rotation electric motor provided on the rotation base plate, and a rotation reduction gear train that rotates the elevating base plate by decelerating its rotation; And an elevating electric motor provided on the base plate, and a decelerating gear train that decelerates the rotation and raises and lowers the tilting base plate via the elevating means; and the tilting drive unit is provided on the tilting base plate. A tilting electric motor, and a tilting reduction gear train that decelerates the rotation and tilts the tilting plate attached to the flat display through tilting means . Further, the tilting means is a tilting screw output shaft as an output shaft of the tilting reduction gear train, a lifting and lowering piece that is engaged with the tilting screw output shaft to move up and down and tilt the tilting plate, It is comprised from these.

  The flat panel display driving device of the present invention can not only rotate the flat display horizontally in the horizontal direction, but also move it up and down and simultaneously tilt it in the front-rear direction. There is an advantage that it can be driven reliably and reliably.

  Next, embodiments of the apparatus of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall perspective view showing an embodiment of the apparatus of the present invention, wherein D is a flat display such as a liquid crystal display or a plasma display, M is a flat display D supported at the lower part, It is a drive device for rotating in the horizontal direction, moving up and down in the vertical direction, and tilting back and forth (tilt). As is clear from FIG. And a tilting drive section C. The base of the driving device M, that is, the rotating base plate 1 of the rotating driving unit A is attached and fixed to appropriate support means (not shown) such as an installation base such as a stand or a rack or a structure. It has become.

  FIG. 2 shows a state in which the flat display D is rotated in the horizontal left direction (counterclockwise as viewed from above, the same applies hereinafter) as indicated by an arrow by the rotation driving unit A of the driving device M. -1 is an enlarged perspective view of the driving device M. FIG. FIG. 2-2 shows a reduction gear train of the rotation drive unit a. The worm gear 2a attached to the output rotation shaft of the rotation electric motor 2 installed on the rotation base plate 1 includes a first gear wheel 2a. The large gear 3a-1 of the gear 3a is meshed. The small gear 3a-2 of the first gear 3a meshes with the large gear 3b-1 of the second gear 3b, and the small gear 3b-2 meshes with the large gear 3c-1 of the third gear 3c. Yes. The small gear 3c-2 of the third gear 3c meshes with the small gear 3d-2 of the fourth gear 3d. The large gear 3d-1 of the fourth gear 3d meshes with the fifth gear 3e. The rotation of the electric motor 2 for rotation is greatly reduced by the worm gear 2a and the rotation reduction gear train 3 described above.

  As shown in FIG. 2-3, a rotation restricting plate 3g is attached and fixed to the rotation output shaft 3f of the fifth gear 3e. Since the rotation restricting plate 3g is attached to the rotation output shaft 3f by an appropriate friction clutch (not shown), when the rotation restricting plate 3g is overloaded, it slips and the fifth gear 3e. Has become idle. The rotation restricting plate 3g is provided with a notch 3g-1 over a predetermined prospective angle, and the rotation angle is restricted by a stopper 1a attached to the rotation base plate 1.

  On the rotation restricting plate 3g, an elevating base plate 4 (see FIG. 2-1) is attached so as to be integrally rotatable, and a flat display is provided via an elevating drive unit B and a tilting drive unit C. D is rotationally driven.

  FIG. 2-4 shows a state in which the electric motor 2 for rotation is rotated in the reverse direction to rotate the flat display D in the reverse direction, that is, in the horizontal right direction (clockwise as viewed from above: hereinafter the same). Indicates.

  FIG. 3 shows a state in which the flat display D is lifted from the lowered state of FIG. 1 as indicated by an arrow, and in particular, FIG. The elevating electric motor 5 and the reduction gear train 6 are attached to a side plate 4a that rises vertically from the elevating base plate 4 in a horizontal state.

  As shown in FIG. 3B, the pinion gear 5a attached to the output rotation shaft of the lifting electric motor 5 is engaged with the large gear 6a-1 of the first gear 6a. The small gear 6a-2 of the first gear 6a meshes with the large gear 6b-1 of the second gear 6b. The small gear 6b-2 of the second gear 6b meshes with the third gear 6c. Due to the pinion gear 5a and the elevating reduction gear train 6, the rotation of the elevating electric motor 5 is greatly reduced.

  A lifting screw output shaft 6d is integrally attached and fixed to the third gear 6c. The elevating screw output shaft 6d is formed with screws in opposite directions from the center in the longitudinal direction to the left and right. As is apparent from FIG. 3-1, the slide frames 7 and 7 are screwed to these screws, and the slide frames 7 and 7 are mutually connected with the rotation of the lifting screw output shaft 6d. Move away from or approach. A guide rail 8 guides the slide frame 7.

  Reference numeral 9 denotes a pantograph type elevating member, the lower end of which is pivotally attached to the slide frame 7 and the upper end thereof is pivotally attached to the elevating side plate 10. Accordingly, as the slide frames 7 and 7 move, the elevating side plate 10 moves up and down, that is, moves up and down, and drives the flat display D up and down via the tilting drive section C.

  FIG. 4 shows a state in which the flat display D is tilted forward from the state of FIG. 1, and in particular, the tilting drive section C is enlarged and shown in FIG. 4-1. In this figure, a tilting electric motor 12 is attached to a tilting base plate 11 assembled to the upper part of the elevating side plate 10.

  As shown in FIG. 4B, the pinion gear 12a attached to the rotation output shaft of the tilting electric motor 12 meshes with the large gear 13a-1 of the first gear 13a. The small gear 13a-2 of the first gear 13a meshes with the large gear 13b-2 of the second gear 13b. The small gear 13b-1 of the second gear 13b meshes with the third gear 13c. The rotation of the tilting electric motor 12 is greatly decelerated by the pinion gear 12a and the tilting reduction gear train 13 described above.

  A tilting screw output shaft 13d is integrally attached and fixed to the third gear 13c. A moving piece 13e is screwed to the tilting screw output shaft 13d, and moves up and down as the tilting screw output shaft 13d rotates.

  As is clear from FIG. 4-3, the moving piece 13e is connected to the tilting plate 14 via a pivoting portion 14a. The tilting plate 14 is pivotally attached to the tilting base plate 11 via a pivot 14b, and the pivoting portion 14a is offset with respect to the pivot 14b. The tilting plate 14 tilts with the vertical movement, and the flat display D is tilted back and forth via the display mounting member 16. A torsion spring 15 is provided so as to balance the back-and-forth movement of the flat display D.

  FIG. 4-4 shows a state in which the flat display D is tilted backward by rotating the tilting electric motor 12 in the reverse direction.

  In the first embodiment, as an elevating means for elevating and lowering the flat display D, an elevating screw output shaft as an output shaft of the decelerating gear train, and a slide frame that is slidably engaged with the elevating screw output shaft; A pantograph-type lifting member that moves up and down with the movement of the slide frame and lifts the tilting base plate connected to the upper end. In the second embodiment, as shown in FIG. 5, the tilting drive unit C is directly placed on the rotation drive unit A. In addition to being installed, the elevating drive unit b ′ is mounted on the tilting drive unit c.

  As is apparent from FIG. 5, the connection between the rotation drive unit A and the tilt drive unit C is performed between the rotation plate 4 'corresponding to the lifting base plate 4 of the first embodiment and the tilt drive unit C. The tilting base plate 11 is connected via a side plate 10 '(corresponding to the lifting side plate 10 of the first embodiment).

  A vertical movement base plate 17 of the elevating drive unit b ′ is attached and fixed to the tilt plate 14 of the tilt drive unit c. As is clear from FIG. 6, a guide frame 18 is attached and fixed to the vertical movement base plate 17 at the left and right positions. Constant load spring constons 19 are attached to the upper portions of the left and right guide frames 18.

  An upper and lower slide frame 20 is sandwiched between the left and right guide frames 18, and the distal ends of the left and right constant load spring constons 19 are connected and fixed to the lower part of the upper and lower slide frames 20, and are suspended so as to be movable up and down. . A display mounting frame 21 for mounting and fixing the flat display D is provided at the upper end of the vertical slide frame 20.

  FIG. 7 is a diagram for explaining the vertical movement (sliding) mechanism. An appropriate number (three in this embodiment) of columns 22 are implanted in the frame 17 ′ fixed to the vertical movement base plate 17. ing. A slide sleeve 23 is externally attached to these columns 22 so as to be slidable up and down. A vertical moving plate 24 is attached to the slide sleeve 23. A screw hole is formed in the vertical moving plate 24, and a lifting screw output shaft 25 is screwed into the screw hole.

  The above-mentioned lifting screw output shaft 25 is rotationally driven by a lifting electric motor 27 through a reduction gear train 26, and as it rotates, the vertical moving plate 24 is lifted and driven, as shown in FIG. Then, the vertical slide frame 20 and the display mounting frame 21 integrated with the vertical moving plate 24 are raised, and the flat display D is raised as shown in FIG.

In the first and second embodiments, as the tilting means for tilting the tilting plate, the tilting screw output shaft as the output shaft of the tilting reduction gear train and the tilting screw output shaft are screwed in and out. Although it is comprised from the raising / lowering piece which moves, the tilting means of this invention is not limited to this.
Each electric motor 2, 5, 12, 27 of the present invention is remotely operated by wired or wireless means.

It is a whole perspective view which shows one Example of this invention apparatus. FIG. 2 is an enlarged explanatory view of the driving device M in FIG. 1. It is effect | action explanatory drawing which shows the state which the flat display rotated in the left direction. FIG. 3 is an enlarged explanatory view of the drive device of FIG. 2. It is a principal part enlarged view which shows the reduction gear train of the drive part for rotation. It is explanatory drawing which shows attachment of a rotation control board. It is effect | action explanatory drawing which shows the state which rotationally driven the flat display to the right direction. It is effect | action explanatory drawing which shows the state which raised the flat display. FIG. 4 is an enlarged explanatory view of the drive device of FIG. 3. It is a description perspective view of the reduction gear train for raising / lowering. It is effect | action explanatory drawing which shows the state which tilted the flat display ahead. FIG. 5 is an enlarged explanatory view of the drive device of FIG. 4. It is a description perspective view of the reduction gear train for tilting. It is explanatory drawing for inclination operation | movement. It is effect | action explanatory drawing which shows the state which inclined the flat display back. It is expansion explanatory drawing of the drive device of Example 2 of this invention. It is the perspective view which looked at the apparatus of FIG. 5 from the other side. It is a principal part perspective view of a raising / lowering drive mechanism. It is the perspective view which looked at the mechanism of FIG. 7 from the lower side. It is a perspective view explaining a raise state. It is explanatory drawing of the state which the flat display raised.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base plate for rotation 1a Stopper 2 Electric motor for rotation 2a Worm gear 3 Reduction gear train for rotation 3a 1st gear 3a-1 Large gear 3a-2 Small gear 3b 2nd gear 3b-1 Large gear 3b-2 Small gear 3c 3rd Gear 3c-1 Large gear 3c-2 Small gear 3d Fourth gear 3d-1 Large gear 3d-2 Small gear 3e Fifth gear 3f Rotating output shaft 4 Lifting base plate 4a Side plate 4 'Rotating plate 5 Lifting electric motor 5a Pinion gear 6 Lifting reduction gear train 6a 1st gear 6a-1 Large gear 6a-2 Small gear 6b 2nd gear 6b-1 Large gear 6b-2 Small gear 6c 3rd gear 6d Lifting screw output shaft 7 Slide frame 8 Guide rail 9 Pantograph type lifting member 10 Lifting side plate 10a Lower plate 11 Base plate for tilting 12 Electric motor for tilting Motor 12a pinion gear 13 tilting reduction gear train 13a first gear 13a-1 large gear 13a-2 small gear 13b second gear 13b-1 small gear 13b-2 large gear 13c third gear 13d tilting screw output shaft 13e ascending / descending Frame 14 Tilt plate 14a Pivoting part 14b Pivot 15 Torsion spring 16 Display mounting member 17 Vertical movement base plate 17 'frame 18 Guide frame 19 Constant load spring conston 20 Vertical slide frame 21 Display mounting frame 22 Post 23 Slide sleeve 24 Vertical moving plate 25 Lifting Screw output shaft 26 Reduction gear train 27 Elevating electric motor D Flat panel display M Drive device A Rotating drive unit B Elevating drive unit C Tilt drive unit

Claims (2)

A driving device for supporting a flat display at the lower part and rotating it horizontally and horizontally, raising and lowering it vertically, and tilting it back and forth; In the driving device for a flat display, wherein the driving unit is appropriately assembled ,
The rotation drive unit is composed of a rotation electric motor provided on the rotation base plate, and a rotation reduction gear train that rotates the elevating base plate by decelerating its rotation; And an elevating electric motor provided on the base plate, and a decelerating gear train that decelerates the rotation and raises and lowers the tilting base plate via the elevating means; and the tilting drive unit is provided on the tilting base plate. An apparatus for driving a flat display, comprising: an electric motor for tilting; and a tilting reduction gear train for tilting a tilting plate attached to the flat display through tilting means by decelerating its rotation; . The tilting means is composed of a tilting screw output shaft as an output shaft of the tilting reduction gear train, and an elevating piece which is engaged with the tilting screw output shaft to move up and down and tilt the tilting plate. flat display driving apparatus according to claim 1, wherein the to be.