JP2803842B2 - Tilt table equipment for the stage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement of stage equipment such as a theater.

(Prior Art) There is a form in which a part of a floor surface can be inclined as a preparation for a stage such as a theater. For example, as shown in FIG. 4, the end 1A of the inclined base body 1 is hinged to the support member 2,
The opposite end 1B is supported by a telescopic cylinder 23 interposed between the lower end 1B and the lower supporting member 2.

(Problems to be Solved by the Invention) In this apparatus, when the tilt base body 1 is tilted, the floor surfaces 24A and 24B of adjacent stages and the tilt base body 1 are tilted.
There is a problem in that the size of the horizontal gap between the end portions 1A and 1B changes with the occurrence of a step between the end portions 1A and 1B, and as a result, usability of the stage deteriorates.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a stage tilt table apparatus capable of keeping a horizontal space between a tilt table main body and an adjacent stage floor constant regardless of the tilt of the tilt table main body. The purpose is to do.

(Means for Achieving the Object) The present invention is directed to a tilt base body that is partly supported by a lower support member via a rotating shaft and that forms a part of the floor of a stage, and an optional tilt base body. A stage tilting table device comprising driving means for tilting at an angle of: a means for horizontally moving the rotating shaft in parallel, and a mechanism for interlocking the rotating shaft moving means and the driving means with the same power source. Have.

(Operation) As the driving means tilts the tilt base body, the moving means moves the rotation axis in the horizontal direction to compensate for a change in the horizontal distance between the tilt base body and the adjacent stage floor.

(Embodiment) FIGS. 1 to 3 show an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a tilting base body, which is supported by a lower supporting member 2 via a horizontal rotating shaft 17 so as to be tiltable in the front-rear direction. The front and rear ends 1A and 1B of the inclined base body 1 are also provided.
Screw jacks 3 and 4 are interposed between the support member (support table) 2 and the support member (support table) 2 as drive means for tilting the tilt table body 1.

The screw jacks 3 and 4 are connected to a bevel gear 18 directly connected to the electric motor 5 mounted on one end of the support member 2, respectively, to fluid couplings 6 and 7, drive shafts 8 and 9, and a gear 10.
And 11, the one is extended and the other is contracted with the operation of the electric motor 5. Screw jacks 3 and 4
As shown in FIG. 2, the support member 2 on the opposite side of the motor 5
One at each end of the drive shaft 12
It works together via.

Further, another screw jack 13 as a moving means of the rotating shaft 17 has a front end at the end 1B of the inclined base body 1 and a rear end at the end 1A.
Slide table 25 fixed on the support member 2
Is supported horizontally. The screw jack 13 is connected to the bearing bracket 26 of the rotating shaft 17 and is connected to the screw jack 3 via the gear 14, the drive shaft 15 and the speed reducer 16, and has a speed reduction ratio suitable for the operation of the electric motor 5. With this, it expands and contracts integrally with the screw jack 3, and moves the bearing bracket 26 along the slide table 25.

In addition, as shown in FIG.
The support member 2 and the inclined table main body 1 are integrally moved up and down by driving a not-shown elevating means.

 Next, the operation will be described.

The solid line in FIG. 1 shows the inclined base body 1 in a horizontal state. In this state, the inclined base body 1 moves with respect to the surrounding floor surfaces 24A and 24B.
The same plane is formed through a small gap.

When the electric motor 5 is operated from this state, for example, the screw jacks 3 and 13 are extended, and the screw jack 4 is contracted. As a result, the tilt base body 1 rotates counterclockwise in FIG. 1 about the fulcrum 3, and the rotating shaft 17 (tilt base body 1) slightly moves to the left in the figure. For this reason, as shown by the dashed line in FIG. 1, the horizontal distance between the descending end 1B and the stage floor 24B adjacent thereto is substantially the same, and the stage floor 24A opposite to the rising end 1A is opposite. Only the horizontal spacing of increases.

When the motor 5 is operated in the reverse direction, the screw jacks 3 and 13 contract, the screw jack 4 expands, and the inclined base body 1 rotates clockwise on the same path as when the motor 5 rotates forward, and the horizontal position is changed. Return to.

Further, the operation of the electric motor 5 is continued and the screw jack 3 is
13 is contracted from the horizontal position, the inclined base body 1 continues to rotate clockwise, the end 1B rises as shown by the two-dot chain line in the figure, and the rotating shaft 17 moves to the right in FIG. Moving. As a result, the distance between the descending end 1A and the adjacent stage floor 24A hardly changes, and only the distance between the end 1B and the opposite stage floor 24B increases.

Further, when the electric motor 5 is rotated forward from the position indicated by the two-dot chain line in FIG. To rotate in the opposite direction and return to the horizontal position.

In this way, when the end 1A (1B) is below the horizontal position, the end 1A (1B) is displaced almost vertically regardless of whether the inclination of the inclined base body 1 is changed in any direction. Stage floor
The horizontal distance from 24A (24B) hardly changes.

The upper end 1A (1B) of the horizontal position and the stage floor 24A
If it is desired to keep the horizontal distance from (24B) constant, the expansion and contraction direction of the screw jack 13 may be set to be opposite to that of the screw jack 3.

(Effects of the Invention) As described above, the present invention provides a driving means for tilting the tilt base body, a means for moving the rotation axis of the tilt table in parallel in the horizontal direction, a means for moving the rotation axis, and the driving means. With the mechanism for interlocking with the same power source, the tilt base body is slightly moved in the horizontal direction with the change in tilt. For this reason, the horizontal distance between the end of the tilt base body and the surrounding stage floor can be kept constant irrespective of the tilt of the tilt base body. Is greatly improved.

[Brief description of the drawings]

FIG. 1 is a side view of an inclined table apparatus showing an embodiment of the present invention, FIG. 2 is a plan view of a driving means, and FIG. 3 is a schematic longitudinal sectional view of a theater showing an arrangement of the inclined table apparatus. FIG. 4 is a side view of an inclined table apparatus showing a conventional example. 1 ... inclined base body, 2 ... support member, 3, 4, 13 ... screw jack, 5 ... electric motor, 6, 7 ... fluid coupling, 8, 9, 1
2,15 …… Drive shaft, 10,11,14 …… Gear, 16 ……
Reducer, 17 ... Rotary shaft, 18 ... Bevel gear, 24A, 24B ...
... the stage floor.

Claims (1)

(57) [Claims] 1. A tilt base body which is partly supported by a lower support member via a rotating shaft and which is tiltable and which forms a part of a floor of a stage, and a driving means for tilting the tilt base body at an arbitrary angle. A stage tilting table apparatus, comprising: means for moving the rotation axis in parallel in a horizontal direction; and a mechanism for interlocking the rotation axis moving means and the driving means with the same power. Tilt table equipment.