JP3932243B2 - Looming stage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a looming stage provided on the stage floor of a theater.
[0002]
[Prior art and its problems]
Many of the rotating stages provided on the stage floor of a theater or the like are an approaching stage having an approaching stage, and for example, an approaching stage having a structure as shown in FIG. 3 has been proposed so far.
[0003]
That is, this approaching stage is arranged on the pit floor P1 below the stage floor S and extends in the vertical direction while the rotating stage floor 11 constituting the rotating stage 1 is supported by the upper end of the support base 12 having a frame structure. It is supposed to be rotated in the horizontal direction around the axis.
[0004]
On the other hand, it is said that the stage close to the rotating stage floor 11, that is, the stage 2, which is referred to as large and large in comparison, and the stage 3, which is referred to as small in comparison, is called a single stage. It is said that it has to.
[0005]
At this time, the pressing stage floors 21 and 31 constituting the pressing stages 2 and 3 are lifted and lowered by respective appropriate lifting mechanisms arranged on the support base 12 although not shown.
[0006]
Therefore, in the approaching stage as the conventional proposal, it is necessary to stop the rotation of the stage stage 11 when, for example, the actors are transferred to the approaching stage floors 21 and 31. Also, it is advantageous in that the approaching stage floors 21 and 31 can be raised and lowered when the rotating stage floor 11 is rotated.
[0007]
However, there is a possibility that it is pointed out that there are the following problems in this approaching approach stage.
[0008]
That is, in the case of this proposal, the rotating stage floor 11 is supported by the support base 12, and the approach stages 2 and 3 are arranged on the support base 12, so that the support base 12 is enlarged. Therefore, it becomes necessary to form a large pit portion P below the stage floor S.
[0009]
And since the support stand 12 is enlarged, the whole weight of the turn stage 1 becomes very large, so that the pit floor P1 is formed so as to be strong, and the reduction of the overall cost including the construction cost is hindered. There is a bug.
[0010]
The present invention was devised in view of the above-described circumstances, and the object of the present invention is not to increase the size of the whole and to form a large pit portion under the stage floor, thereby reducing the overall cost. The aim is to provide an impromptu stage that is ideal for making reductions possible and expecting improved versatility.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the structure of the present invention resides in a rotating stage floor having an upper end surface that is flush with a floor surface of a flat floor such as a stage floor, and an opening formed in the rotating stage floor. In an approaching stage with an approaching stage floor that sometimes has an upper end surface that is flush with the upper end surface of the stage floor, and an elevating mechanism that is arranged below the approaching stage floor to raise and lower the approaching stage floor The rotating stage floor is formed in a disc shape, and is supported so as to be rotatable around the center by a shaft provided on the building side close to the lower surface, while the outer peripheral side lower surface is The drive source disposed on the support member is supported by a plurality of rollers provided on the wall surface of the pit portion on the building side close to the lower surface, and the driving source disposed on the support member The stage floor can be rotated by connecting to Will be similarly around the stage floor stop position determined by the positioning mechanism is arranged close to the outer peripheral lower surface of the support member, held by the holding mechanism when the rotation of the stage floor around the stage floor approaching around the stage floor At the same time, it is assumed that the rotating stage floor is connected to the lifting mechanism when stopped at a predetermined position.
[0012]
In the configuration described above, more specifically, the holding mechanism includes a rod body that protrudes and retracts with respect to the cylinder body held on the rotating stage floor, and the tip of the rod body approaches the stage floor. Suppose that it appears in a recess formed on the side surface.
[0013]
In addition, the elevating mechanism is assumed to be linked when, for example, raising and lowering the approaching stage floor so that the hooking part at the upper end is hooked on the engaging part formed on the lower surface of the stage floor.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiment. As shown in FIG. 1, the approaching stage according to the embodiment of the present invention basically includes a rotating stage floor 11, The approaching stage floors 21 and 31, the lifting mechanism 4, and the holding mechanism 5 are provided.
[0015]
First, the rotating stage floor 11 constitutes the rotating stage 1 and has an upper end surface that is flush with the floor surface of a flat floor such as the stage floor S. In the present invention, the center of rotation is the center of rotation. It is said that it is formed in a disk shape.
[0016]
Since the rotating stage floor 11 is formed in a disc shape, it is not necessary to support the rotating stage floor 11 with the support base 12 having a frame structure, unlike the conventional rotating stage floor 11 in the conventional rotating stage 1 described above.
[0017]
As a result, since the support base 12 having a frame structure that is easily increased in size is not disposed in the pit portion P below the stage floor S, it is advantageous in that it is not necessary to form the pit portion P large.
[0018]
By the way, the rotating stage floor 11 is formed in a disk shape, and its center is the center of rotation, that is, the shaft 13 provided on the building (not shown) side lowers the center of the stage floor 11. It is said to be supported from the side.
[0019]
By setting the rotating stage floor 11 to rotate about the shaft 13, the phenomenon that the rotating stage floor 11 staggers in the left-right direction during the rotation can be reliably prevented with a simple configuration.
[0020]
As shown in FIG. 1 , the drive source 14 that rotates the rotating stage floor 11 is disposed on a support member 60 formed on the wall surface of the pit portion P close to the lower surface on the outer periphery side of the rotating stage floor 11 . It is assumed that the positioning mechanism 15 that is connected to the lower surface on the outer peripheral side and stops the rotation of the rotating stage floor 11 is also disposed on the support member 60 that is adjacent to the lower surface on the outer peripheral side of the rotating stage floor 11. .
[0021]
Incidentally, as long as the driving source 14 exhibits a predetermined driving force, an arbitrary configuration may be adopted, and the rotating stage floor 11 may be rotated only in one direction or in both directions. It may be set to various configurations.
[0022]
As long as the positioning mechanism 15 exhibits a predetermined braking force, an arbitrary configuration may be employed. In many cases, the positioning mechanism 15 is set to operate when the rotating stage floor 11 makes a so-called round. I will.
[0023]
Further, the outer peripheral side of the rotating stage floor 11 is supported by a plurality of rollers 16 provided on the support member 60 on the building side at an appropriate interval in the circumferential direction, and so-called a phenomenon of wobbling in the vertical direction occurs. It is supposed to be blocked in advance.
[0024]
Further, the stop position of the rotating stage floor 11 is not an arbitrary position but only a predetermined position in the present invention due to the relationship between the approach stages 2 and 3 described later.
[0025]
Next, the looming stage floor 21 constitutes the looming stage 2 which is large in comparison and is referred to as a looming stage, and the looming stage floor 31 constitutes a looming stage 3 which is small in comparison and is referred to as a bullishness. ing.
[0026]
The approaching stage floors 21 and 31 have their upper end faces flush with the upper end face of the stage floor 11 when they are present at the respective openings 11a and 11b formed in the rotating stage floor 11 described above. Is set to
[0027]
Incidentally, the approaching stage bed 21 and 31, often it is configured to exhibit a rectangular in plan view.
[0028]
Each of the approaching stage floors 21 and 31 is connected to an elevating mechanism 4 described later when the rotating stage floor 11 is stopped at a predetermined position.
[0029]
By the way, the elevating mechanism 4 functions to raise and lower the approaching stage floors 21 and 31, and although not shown in detail, for example, in the approaching stage 2, a pair of screws that rotate synchronously. A screw jack system in which the base 42 moves up and down next to the rod 41. In the approaching stage 3, a wire lifting system having a base 44 connected to the counterbalance 43 via a wire (not shown). It is said that.
[0030]
Further, when the elevating mechanism floors 21 and 31 are moved up and down, for example, the elevating mechanism 4 hooks the hooks 45 at the upper end on the approaching parts not shown and shown on the lower surfaces of the stage floors 21 and 31. It is supposed to be connected in this way.
[0031]
Note that, for example, a middle floor F through which an actor passes or a protective net N is extended around the elevating mechanism 4.
[0032]
On the other hand, the approaching stage floors 21 and 31 are held by the opening portions 11a and 11b of the rotating stage floor 11 by the holding mechanism 5 when the rotating stage floor 11 is rotated, and the holding mechanism 5 corresponds to the present invention. As shown in FIG. 2, the cylinder body 51 held on the rotating stage floor 11 has a rod body 52 that protrudes and protrudes toward the side surfaces of the approaching stage floors 21 and 31 facing each other.
[0033]
Further, guide holes 21 a and 31 a that allow the tip of the rod body 52 to be inserted are formed on the side surfaces of the approaching stage floors 21 and 31.
[0034]
By the way, this holding mechanism 5 takes into account that each approaching stage floor 21, 31 is held on the rotating stage floor 11, and from the viewpoint of prompt operation at that time, for example, a hydraulic cylinder and It would be preferred that
[0035]
In the holding mechanism 5 described above, the cylinder body 51 is arranged around the stage floor 11 and the approach stage floors 21 and 31 are formed with guide holes 21a and 31a. Instead, it may be reversed, that is, the cylinder body 51 is arranged on each approaching stage floor 21, 31 and a guide hole is formed around the stage floor 11.
[0036]
Therefore, in the holding mechanism 5, the rod body 52 is controlled to protrude when the approaching stage floors 21 and 31 are present at the openings 11 a and 11 b formed in the turning stage floor 11. Thus, the approaching stage floors 21 and 31 can be held integrally with the turning stage floor 11, and therefore, when the turning stage floor 11 rotates, the openings 11 a and 11 b remain open while being opened downward. Such a problem that the pit portion P can be seen can be eliminated in advance.
[0037]
By the way, in order to rotate the rotating stage floor 11, in many cases, so-called switch operation will be used, so that the approaching stage floors 21, 31 are not present in the openings 11 a, 11 b. Is set so that a so-called safety device is activated, so that the stage floors 21 and 31 are always present at the openings 11a and 11b and the openings 11a and 11b are opened when the rotating stage floor 11 is rotated. It would be possible to prevent it from being left untouched.
[0038]
【The invention's effect】
As described above, in the present invention, the rotating stage floor is formed in a disk shape so that it is supported on the building side at the center and the outer peripheral side, while the pit close to the lower surface of the rotating stage floor A drive source is arranged on a support member formed on the wall of the section, and this drive source is connected to the outer peripheral lower surface of the rotating stage floor so that the rotating stage floor can be rotated around its center. Furthermore, since the stop position of the rotating stage floor is determined by the positioning mechanism arranged close to the lower surface on the outer peripheral side of the support member , the rotating stage floor is supported by the frame structure support base as in the conventional example described above. As a result, there is no need to form a large pit portion below the stage floor.
[0039]
And since the rotating stage floor is not supported by the frame structure support stage, there is no need to provide the approaching stage so as to be entangled with the so-called stage, so the structure of the rotating stage can be set simply, and as a result, The weight of the entire stage is reduced and it is not necessary to form the pit floor firmly.
[0040]
Further, in the present invention, when the approaching stage floor is present at the opening formed in the turning stage floor, the approaching stage floor can be rotated and held integrally with the stage floor by controlling the holding mechanism. Therefore, when the rotating stage floor rotates, it is possible to eliminate in advance a problem that the lower pit portion can be viewed while the opening formed on the rotating stage floor is open.
[0041]
As a result, according to the present invention, the overall size can be avoided and the overall cost including the construction cost can be reduced without forming a large pit portion under the stage floor. There is an advantage that is optimal for expecting improvement in performance.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view showing an approaching stage according to an embodiment of the present invention.
FIG. 2 is a partially enlarged vertical sectional view showing a state in which a holding stage is connected to a rotating stage floor by a holding mechanism.
FIG. 3 is a diagram showing an approaching stage as a conventional example, similar to FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Turn stage 2, 3 Approach stage 4 Lifting mechanism 5 Holding mechanism 11 Turn stage floor 11a, 11b Opening part 13 Axis 14 Drive source 15 Positioning mechanism 16 Roller 21, 31 Approach stage floor 21a, 31a Recessed part 41 Screw rod 42, 44 Base 43 Counterbalance 45 Hook 51 Cylinder body 52 Rod body
60 Support member F Middle floor N Protection net P Pit part P1 Pit floor S Stage floor

Claims (1)

A rotating stage floor having an upper end surface that is flush with the floor surface of a flat floor such as a stage floor, and the upper end surface is flush with the upper end surface of the stage floor when present at an opening formed in the rotating stage floor. In the urging stage that has an approaching stage floor and an elevating mechanism that is arranged below the approaching stage floor and raises and lowers the approaching stage floor, the rotating stage floor is formed in a disk shape, A shaft provided on the building side close to the bottom surface is supported so as to be pivotable around the center, while its outer peripheral side lower surface is formed on the wall surface of the pit portion on the building side close to the lower surface The rotating stage floor can be rotated by connecting the driving source disposed on the supporting member to the lower surface on the outer peripheral side of the rotating stage floor, and being supported by a plurality of rollers provided on the supporting member. Similarly, it is placed close to the lower surface on the outer periphery side of the support member. That revolving stage floor stop position by the positioning mechanism is been determined, approaching with the stage floor is held around the stage floor by the holding mechanism when the rotation of the rotating stage floor, elevator when stopping to a predetermined position of the rotating stage floor An impulsive stage characterized by being linked to the mechanism.

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