JPH0317989B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a moving stage device that can be freely configured to store on a wall and unfold on a floor.
A fixed stage that can be installed later in a room without a stage, such as a gymnasium, community center, assembly hall, classroom or play room in a school, kindergarten, nursery school, etc., or a built-in fixed stage such as an auditorium or theater. It is convenient to install it in a place where it is not necessary to install the device.

(Prior Art) Previously, in Japanese Utility Model Publication No. 60-25482 and Japanese Utility Model Application Publication No. 61-16200, the present inventor established and fixed a guide post to a wall portion indoors and outdoors, and the stage body was attached to the guide post. The rear part of the stage body is supported so that it can be raised and lowered, and the front part of the stage body supports floor rolling wheels such as wheels or rollers.The stage body also has a high floor type with foldable stage legs, and a simple low floor type. We have proposed a relatively simple stage device that can be used to store and support the stage body in an inverted state near a wall indoors or outdoors, or to pull out the stage body in an inverted state and deploy it to the floor. Efficient use of space, etc. is being addressed.

In addition, Japanese Patent Application Laid-open No. 1769/1983 and Japanese Patent Application No. 1983-
In the prior invention shown in the specification and drawings of No. 298461 (Japanese Unexamined Patent Publication No. 62-160371), a proscenium arch is further combined with the stage main body having the above structure, and the proscenium arch is movable back and forth along the floor. We propose a relatively large-scale moving stage device consisting of a stage main body that can be freely stored near a wall and deployed on the floor, and a proscenium arch that is linked to the stage main body, or The proscenium arch can be moved forward and backward independently of the stage body, and a proscenium arch that has moved forward can be placed at the front end position of the stage body that has fallen down, or vice versa. By installing an inverted stage body inside the proscenium arch, when this device is not in use, the stage body and proscenium arch can be stored relatively compactly against a wall indoors or outdoors. This allows the room to serve its intended purpose, and
When in use, by simply and quickly deploying the stage body and proscenium arch onto the floor, a sense of solidity comparable to that of auditoriums, theaters, etc. with fixed stages can be achieved. The original floor space in the room is not reduced as much as possible and can be used effectively for a variety of purposes.

(Problems to be Solved by the Invention) In these cases, not only in the case of the latter, which is a relatively large-scale moving stage device, but also in the case of the former, which is a relatively simple stage device, the main problem is By lifting the rear part of the stage main body upward along the guide support column, the stage main body can be stably stored and supported in a vertical position leaning against an inner wall surface indoors or outdoors.
It cannot be used unless the stage body is deployed horizontally onto the floor by pulling its lower end forward and pulling down the rear end of the stage body.

Therefore, even if the depth of the stage itself is short, if you create a position higher than the mere floor and consider how it will be used in small gatherings, for example, it can be used as a morning assembly table in places like schools. If there is a stage part, that is, if a stage function that can be called a sub-stage is added to the stage main body, this type of stage device can be easily used even when the stage main body is stored in an inverted state. It is extremely useful.

(Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the present inventors first erected a guide post C near a wall indoors and outdoors, and In a relatively simple stage device configured such that the rear part of the stage main body D is moved up and down along a support C, and the front part of the stage main body D is moved back and forth along a floor B, the stage A stage device is provided in which a floor rolling trolley X that moves back and forth on the floor B is connected to the front part of the main body D, and a small stage 103 is constructed on the upper surface of the floor rolling trolley X.

Second, a guide post C is erected near a wall indoors and outdoors, and the rear part of the stage main body D is moved up and down along the guide post C, and the front part of the stage main body D is moved up and down from the floor. The stage main body D is configured to move back and forth along the direction B.
In contrast, the proscenium arch E, which moves back and forth while standing up, is combined, and the proscenium arch E, which has moved backward on the floor B, and the stage main body, which has been stood up in an inverted state, are stored and supported by the guide column C. In a relatively large-scale stage apparatus, a floor rolling cart X that moves back and forth on a floor B is connected to the front part of the stage main body D, and a small stage 1 is mounted on the upper surface of the floor rolling cart X.
The company also provided a stage device comprising 03.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments will be described based on a movable stage apparatus having a proscenium arch with reference to the accompanying drawings.

(First Embodiment) First, this type of moving stage device is designed to connect the front vertical wall surface (hereinafter simply referred to as the front wall) A of the indoor (exceptionally outdoor) wall area of a gymnasium, community center, etc. The facility will be located between the building and floor B.

The overall outline of the device is as follows: about three guide columns C are erected and fixed to the wall portion of the front wall A with anchor bolts, etc.; , about three high-floor type stage bodies D with foldable stage legs formed at the bottom of the floor, a proscenium arch E that is independently and separately supported and moves forward and backward with respect to the stage body D, and a proscenium arch E that It consists of a foldable side link device F formed on the side and a foldable upper link device G formed on the top thereof.

B. Regarding the configuration of guide column C. In Figure 3 a, b, and c, 1 is a rectangular hollow columnar inner chamber with a longer width than depth, and 2 is a rectangular hollow columnar inner chamber with the same depth as inner chamber 1 and a shorter width. The outer chamber is integrally formed on both left and right sides of the inner chamber 1.

Reference numeral 3 denotes a plate-shaped guide for guiding a balance weight device H, which will be described later, up and down, and is formed to protrude vertically at the center of the left and right inner wall surfaces of the inner chamber 1. Reference numeral 4 denotes a dogleg-shaped guide that is vertically installed and protrudes from the front and rear inner walls of the outer chamber 2 in a dogleg-like shape;
Reference numeral 5 denotes a guide elongated hole provided vertically in the center of the outside of the outer chamber 2, through which an elevating member I, which will be described later, is rotatably (or slidably) supported and guided up and down.

Reference numeral 6 denotes a smooth pulley (or sprocket) which is rotatably supported by a pin 6A at the center of the upper end of the left and right sides of the inner chamber 1, and 7 is a pin 6 coaxial with the pulley 6.
Sprocket inserted and supported at the front and rear positions on A,
A fixed frame 8 is fixedly supported on the ceiling of the inner chamber 1.

B Regarding the configuration of the balance weight device H In Fig. 4, 9 is a weight support plate arranged at both the upper and lower ends, 10 is a pin 10A attached to a fixing plate 9A on the left and right upper surface of the upper weight support plate 9.
Smooth wheel (or sprocket) pivoted at 11
is a weight suspension rod, which is connected and fixed at both left and right positions between the upper and lower weight support plates 9.

Reference numeral 12 denotes a plurality of plate-shaped weights loaded on the lower weight support plate 9, which are inserted and supported in a skewer-like manner by a pair of left and right weight suspension rods 11.

Reference numeral 13 denotes a chain (or rope) that suspends the balance weight device H so as to be able to rise and fall.The chain (or rope) is hung around the lower part of the smooth pulley 10, and one end of the chain is attached to the fixed frame 8 as shown in FIG. 3a. It is connected and fixed to a chain fixing support piece 8B which is pivotally supported by a pin 8A, and after the above-mentioned smooth pulley 6 is bent and hung, the other end is connected and fixed to an elevating member I.

14 is a protrusion that engages with the plate-shaped guide 3;
It is protrusively fixed at both left and right positions of the upper and lower weight support plates 9.

C. Regarding the structure of the elevating member I. In Fig. 5 a, b, and c, reference numeral 15 denotes inner and outer support plates arranged on both the left and right sides, which consist of two vertically long rectangular plates, and the upper and lower ends between them. The frame is constructed in the shape of a box frame by connecting and fixing crossbeams across the middle part and the middle part.

Guide rollers 16 are rotatably supported by pins 16A at the four corners between the inner and outer support plates 15, and are guided to roll between the doglegged guides 4.

Reference numeral 17 denotes a bearing member for connection with the stage main body D whose base shaft portion is fixed between the inner and outer support plates 15, and is protruded from the center of both upper and lower ends of the outer support plate 15.

Reference numeral 18 denotes a chain engagement protrusion that is integral with the coupling bearing member 17 and is protruded from the center of both upper and lower ends of the inner support plate 15. The other end of the chain 13 of the balance weight device H, which is lowered inside, is connected and fixed.

Reference numeral 19 denotes a protrusion for engaging a chain of a motor drive device J, which will be described later, which is protruded and fixed at the front and back positions of the central portion of the inner support plate 15, and has protrusions 19A cut out at both upper and lower ends thereof.

D Regarding the configuration of the motor drive device J of the stage main body D In FIGS. 6a and b, 20 is the bottom frame of the motor drive device J installed in the lower part of the inner chamber 1, and 21 is a drive motor that can freely rotate in forward and reverse directions. The motor is installed and fixed on a motor support plate 22 so that its installation height can be freely adjusted, and a drive smooth wheel (or sprocket) 23 is fitted and fixed to the rotating shaft.

Reference numeral 24 denotes a reducer installed oppositely on the left and right to also serve as a support stand for the drive motor 21, and 25 denotes a reducer 2 on the left and right.
The rotary shaft is horizontally disposed between the shafts 4 and 4 and supported by bearings 25A, and a driven smooth pulley (or sprocket) 26 is fitted and fixed at the center of the shaft.

27 is a belt (or chain) suspended and supported by the pulleys 23 and 26; 28 is a connecting joint formed at both left and right ends of the rotating shaft 25;
It is connected to the input shaft of No. 4.

29 is a pin 2 that is freely rotatable on the front and rear fixed plates 22A at both left and right end positions of the motor support plate 22.
Sprocket supported by 9A, 30 is reducer 2
4, a sprocket fitted and fixed to the output shaft 24A protruding from the front and rear; 31, a tension adjustment sprocket pivotally supported by pins 31A at the front and rear of both the left and right sides of the lower part of the inner chamber 1; 32, the stage main body D can be raised and lowered; It is a chain (or rope) that is suspended above the sprocket 7 at the top of the inner chamber 1, as shown in FIG. Protrusion 19A on the upper part of chain engagement protrusion 19 of elevating member I
In addition, the other end is lowered into the inner chamber 1 and hung around the sprockets 29, 30, and 31 in that order, and then the end is connected to the lower protrusion 19A of the chain engagement protrusion 19. It is connected.

E Regarding the structure of the raised floor type stage body D In Fig. 8a and b, 33 is a rectangular stage floor whose upper surface is processed with flooring;
Reference numeral 34 denotes a mounting bracket protruding from and fixed to the bottom surface of the stage floor 33, and is arranged at a point position that divides each stage main body D into about 4 rows in the left-right direction and 5 rows in the front-rear direction. .

Reference numeral 35 denotes a stage leg disposed at the bottom of the floor, the upper end of which is foldably pivoted to the bracket 34.

36 is an upper support pin (or support shaft) of the stage leg 35; 37 is a lower support shaft pivotally installed across the lower end of the stage leg 35; A pair of left and right floor rolling wheels (or rollers) 38 that roll on the floor B are rotatably fitted and fixed to the (axle) 37F, as shown in the enlarged views of main parts in FIGS. 16a and 16b. ing.

Similarly to the upper support shaft 36R in the rearmost row, the lower support shaft 37R in the rearmost row is provided to protrude inwardly toward the guide column C, and its protruding shaft end is fitted into the connecting bearing member 17 of the elevating member I. It is inserted and connected.

39 is a connecting rod that connects and supports the lower support shaft 37 of the stage leg 35 in the front-rear direction; 40 is a front plate for reinforcing the leg fixed to the front part of the stage leg 35; The front plate 40F also functions as a decorative plate that covers the stage legs 35 at the bottom of the floor.

Reference numeral 41 is an adjustable leg made of rubber or the like, which is screwed and supported at the bottom of the stage leg 35 so that its height with respect to the floor B can be freely adjusted.

Concerning the structure of the pull-out device L of the stage main body D In FIGS. 16a and 16b, 96 is a torsion coil spring that is wound and supported around the lower support shaft 37F in the front row that functions as an axle, and is connected to a pair of left and right connecting rods 39. It is interposed between.

97 is the lower support shaft 3 near one connecting rod 39
7F, and a bent portion 96A at one end of a coil spring 96 is inserted into a short cylindrical portion 98 fixedly protruding from the inner outer circumferential surface of the rotary disk, and is connected and fixed thereto.

Reference numeral 99 is a stationary plate fixed to the inner surface of the other connecting rod 39, and the bent portion 96B at the other end of the coil spring 96 is inserted into the short cylindrical portion 100 fixed to the inner outer circumferential surface of the fixed plate, and the coil spring 96 is connected thereto. Fixed.

The floor rolling wheel 38 has a structure in which a metal inclined wheel part 38A is formed on both left and right sides of the wheel body, and a hard rubber tire 38B is formed on the central outer peripheral part.

About the composition of proscenium arch E Proscenium arch E is shown in Figure 1 a, b, c.
As shown in the figure, the frame 42 is made of lightweight section steel or the like and has a truss structure in the shape of a front gate, with side frames 44 on both left and right sides, and upper side frames 44 having decorative members 43 such as decorative boards and cloth fixedly supported on the front side. It consists of a three-sided arch frame 45.

In FIGS. 2a and 2b, 48 is an arch frame 45
This is a guide rail horizontally fixed on the back surface, and curtains such as curtains 49 are suspended from the guide rail 48 to open and close the front opening of the proscenium arch E.

Reference numeral 50 denotes a stage door formed at the lower front side of the left and right side frames 44, which becomes an entrance to the back of the dressing room formed behind the left and right side frames 44 when unfolded.

H. Regarding the configuration of the motor drive device K of the proscenium arch E. In FIGS. 9a, b, and c, reference numeral 51 is a drive motor that can freely rotate in forward and reverse directions, and is mounted on the bottom frame 47 of the left and right side frames 44 so that the tension can be adjusted freely. It is installed and a driving smooth wheel (or sprocket) 52 is fitted and supported on its rotating shaft.

Reference numeral 53 denotes a rotating shaft whose front and rear ends are supported by bearings 53A, which is disposed on a tension-adjustable bearing base 54, and which has a driven smooth pulley (or sprocket) 55 and a smooth pulley with a clutch mechanism in its front and rear positions. (or sprocket) 56 is fitted and fixed.

Reference numeral 57 denotes a belt suspended and supported between the above-mentioned smooth pulleys 52 and 55, and 58 is a speed reducer with a smooth pulley (or sprocket) 59 fitted on its input shaft side and a sprocket 60 fitted on its output shaft side. It is fixed.

61 is a belt suspended between the smooth wheels 56 and 59; 62 is a rotating shaft supported by a bearing 62A at the front of the bottom frame 47; drive wheels (or rollers) 63 are fitted on both left and right sides of the rotating shaft; It is fixed. 64 is a sprocket fitted and fixed to the rotating shaft 62, 65 is a sprocket horizontally supported on the side of the bottom frame 47 so that the tension can be adjusted freely, and 66 is the sprocket 60, 64, 6.
The chain 67 is supported by a bearing 67A so as to be freely rotatable. The chain 67 is a driven wheel (or roller) supported by a bearing 67A so as to be freely rotatable. 67 and the driving wheels 63 constitute a floor rolling cart of the proscenium arch E.

- Side link device F of proscenium arch E
In FIGS. 10a, b, and c, reference numeral 68 denotes a pair of left and right guide columns whose height is freely adjustable. It is fixed upright on both sides with anchor bolts, etc.

Reference numeral 69 denotes a pair of left and right guide columns, which are erected and fixed on the rear surface of the side frame 44 at both left and right sides via their strip-like mounting substrates 69A.

70 is a pair of left and right connecting rods, 71 is a connecting rod 70
A connecting rod is interposed between the connecting rods 70 and 71, and has a cross-link structure in which the center intersections of these connecting rods 70 and 71 are pivotally connected by a support shaft 72.

Reference numeral 73 denotes a support shaft in which the upper end of one connecting rod 70 is connected and fixed to the upper end of the guide column 69, and 74 is a support in which the upper end of the other connecting rod 71 is connected and fixed between brackets 75 at the upper end of the guide column 68. axis, 76
77 is a support shaft that fixedly supports the lower end of one of the connecting rods 70, and 77 is a guide roller that is rotatably pivoted on the left and right ends of the support shaft 76, and the guide roller 77 is guided to the guide column 68. It rolls up and down.

Reference numeral 78 indicates a support shaft which pivotally connects the lower end of the other connecting rod 71, and reference numeral 79 indicates a guide roller rotatably mounted on the left and right ends of the support shaft 78. It rolls up and down guided by.

Reference numeral 80 denotes a connecting rod 8 whose lower end is pivotally supported by a pin 80A at an intermediate position of the upper half of one connecting rod 70.
Reference numeral 1 denotes a connecting rod whose lower end is pivoted at an intermediate position of the upper half of the other connecting rod 71 with a pin 81A,
The upper end of the connecting rod 80 is pivoted by a pin 82.

Reference numeral 83 denotes a wire with one end fixed to the upper end of the guide column 68, which is stretched and supported on the pin 82, and then suspended and supported by a guide pulley 84 supported on the upper end of the guide column 69. A weight 85 that allows the guide column 69 to move up and down is connected and fixed to the end thereof, and a hanging tool for hanging the stage backdrop is separately supported on this wire 83.

Reference numeral 95 denotes a retractable side curtain suspended outside the side link device F, and may be provided separately or connected to the wire 8.
3. The suspension is supported by a suspension device consisting of a guide pulley 84, a weight 85, etc.

About the upper link device G of the proscenium arch E In Figs. 11a and 11b, 86 is a support plate horizontally fixed to the upper part of the front wall A, and brackets 86A are protruded and fixed at appropriate intervals in the left and right direction. ing.

87 is a pin 87 attached to the rear end of the bracket 86A.
88 and 89 are guide rails formed above and below the back position of the upper part of the proscenium arch E; 90 is a support shaft inserted and fixed into the front end of the connection rod 87; 91 is the upper end of the support shaft 90 It is a guide roller that is rotatably pivotally mounted on the upper part of the guide rail 88, and can be freely rolled and guided within the upper guide rail 88.

A caster wheel 92 is fixedly supported on the lower end of the support shaft 90, and is formed to be able to rotate and roll within the lower guide rail 89.

In FIG. 2a, reference numeral 93 is a hanging tool supported at the rear ends of four connecting rods 87 arranged in parallel, and supports a stage backdrop 94 thereon.

(Storing action of the stage device) Therefore, when the movable stage device that is deployed on the indoor floor B of a gymnasium, community center, etc. is stored against the front wall A near the wall, the stage body The drive motors 21 and 51 in the motor drive device J of D and the motor drive device K of the proscenium arch E are started simultaneously or one after the other to drive them in normal rotation in one direction.

Then, first, one of the drive motors 21 rotates the rotary shaft 25 in the forward direction via the smooth pulley 23, chain 27, and smooth pulley 26, and rotates the speed reducer 24 forward and backward through the clutch joints 28 at both left and right ends. The sprocket 30 fixed to the shaft decelerates and rotates left and right at a constant speed, and the chain 32 suspended between the sprocket 30, the sprockets 29 and 31, and the sprocket 7 at the upper end of the guide column C is moved downward, and the end of the chain 32 is moved downward. The fixed elevating member I is guided to the outer chamber 2 and moves upward, and the stage leg 35R of the last row is connected to the upper and lower parts of the bearing member 17 of the elevating member I.
pull up.

In this way, an upward starting force and a driving force are applied to the elevating member I, and the rear end of the stage main body D is guided up and down into the outer chamber 2 of the guide column C and pulled up (or pushed up), so that it is initially horizontal. Stage body D in condition
When the inclination gradient increases and is raised to an appropriate inclination gradient, until then, the pushing force of the stage main body D, which is mainly driven by the driving force of the drive motor 21, is further applied, and as a result, the balance state of the balance weight device H is disrupted. The entire weight of the balance weight device H, including the weight 12 of the required weight suspended from the pulley 10, is applied as a downward descending force to the lifting member I fixed to the end of the chain 13 suspended from the pulley 6. The rear end portion of the stage body D is smoothly pulled up along the guide column C while increasing the pulling force of the stage body D.

At the same time, the stage legs 35 linked to the lower part of the floor of the stage main body D are gradually folded and pulled up, and the floor rolling wheels 38 of the stage legs 35F in the front row move over the floor B. The floor rolling wheel 38 moves backward while rolling, and the rotational force of the floor rolling wheel 38 rotates the lower support shaft 37F in the front row integrally, and twists the coil spring 96 via the rotary disk 97 and the short cylindrical portion 98. As the elastic energy is gradually accumulated,
As shown in FIG. 12b, while folding the stage legs 35 of the stage main body D, the rear end of the stage main body D is pulled up, and the stage main body D is now leaning against the front wall A as shown in FIG. 2b. is stored on the wall.

At this time, the drive motor 21 in the motor drive device J of the stage main body D has a coil spring 9.
In order to prevent the elastic energy stored in 6 from being released suddenly, a braking force is applied for safety and the drive is stopped.

Further, the drive motor 5 of the other motor drive device K
The driving force of 1 is the side frame 44 of the proscenium arch E.
The drive wheel 63 at the bottom is rotated to move backward on the floor B, and the proscenium arch E is rotated.
The connecting rods 70, 71 of the side link device F and the connecting rod 87 of the upper link device G are also folded,
Finally, the stage main body D, which has been erected, is fitted into the proscenium arch E, which has moved backward to the wall area, and is stably stored on the wall.

(Deployment action of the stage device) On the other hand, when the stage device stored on the wall is pulled out onto the floor B and deployed, the braking force of the drive motor 21 in the motor drive device J of the stage body D is first released. Then, the elastic energy stored in the coil spring 96 is released when the stage main body D retreats, and the release action of this elastic energy applies a forward starting rotational force to the floor rolling wheels 38, which causes the floor rolling wheels 38 to move forward. After the dead point state of the stage main body D, which is in an upright state with respect to B, is released, the elastic energy stored in the coil spring 96 is gradually released, thereby promoting the forward movement of the stage main body D. , the lifting member I is pulled down by the driving force of the drive motor 21 which operates in reverse according to this, and the lifting force of the stage main body D by the balance weight device H is gradually loosened, and the weight 12 is lowered.
With this, the lifting member I is moved downward along the guide column C. Along with this, the stage legs 35 of the stage main body D are also released from their folded state and moved forward on the floor B to unfold. Operate.

Separately, when the drive motor 51 in the motor drive device K of the proscenium arch E is driven in reverse, the floor rolling cart X of the proscenium arch E is gradually moved forward by the rotational starting force of the drive motor 51. Further, both the side link device F and the upper link device G of the proscenium arch E are gradually pushed out from the folded state to form an expanded form, so that the entire device is deployed and arranged on the floor B.

(Second Embodiment) In addition, the configuration of a movable stage device in which the stage main body D in the first embodiment is of a low-floor type and is combined with a proscenium arch will be explained, focusing on the changes from the first embodiment. do.

In FIGS. 13 to 15, reference numeral 95 indicates relatively short fixed stage legs, which are attached to the stage floor 33.
It is fixed in a protruding manner to the lower part of the bottom floor of the stage main body D, and is fixed directly at the point positions that are divided into four rows in the left-right direction and four rows in the front-rear direction per stage body D.

Among them, the rear 3 except for the stage leg 95F in the front row.
At the bottom of the row stage legs 95, 95R, there are adjustable legs 4 made of rubber or the like that can adjust the height with respect to the floor B.
1A is screwed or pivotally supported.

37A is a support shaft connected to the lower end of the fixed stage leg 95R in the last row, and its outwardly projecting shaft end is connected to the lower connecting bearing member 17 of the lifting member I in the first embodiment. It is inserted into and supported.

37B is a roller support shaft (axle) connected across the lower end of the front-row fixed stage leg 95F at the front end position of the stage main body D, and the roller support shaft 37B is provided with a roller support shaft that can freely roll on the floor B. Floor rolling rollers (or wheels) 38A are fitted and fixed, and a torsion coil spring 96 is used between the left and right pair of floor rolling rollers 38A to pull the rear part of the stage main body D upward, as in the case of the high floor type. The structure is such that the elastic energy accumulated when the stage body D is raised and stored is released when the lower end of the stage body D is pulled forward and unfolded. I'm trying to make the forward movement work.

In the case of the second embodiment, two guide columns C are arranged on the left and right sides of the front wall A, and two stage bodies D, which can be raised and lowered, are engaged and supported by the guide columns C. Further, although the upper link device G of the proscenium arch E is composed of three parallel links, the other structures and functions thereof are substantially the same as those of the first embodiment.

(Modification) In the above embodiment, the stage main body D of a high floor type or a low floor type, and this stage main body D
The explanation was based on the case where it is combined with a proscenium arch E that operates independently from the proscenium arch E.
In the stage device shown in the above publication or Japanese Utility Model Application Publication No. 61-16200, the pull-out device L for the stage main body D described in (f) above may be configured, or the stage main body D may be provided with a floor as in the third embodiment described later. It is also possible to connect the rolling carriage X and configure the pull-out device L for the stage main body D on the floor rolling carriage X.

(Third Example) In Fig. 17 a, b to Fig. 19 a, b, 1
Reference numeral 01 denotes a connecting joint that connects and supports the floor rolling cart X to the front end of the stage main body D of the low floor type shown in the second embodiment (or the high floor type shown in the first embodiment).

102 is a cart frame of the floor rolling cart
03, and when the stage main body D is of a raised type, a storage chamber is appropriately configured inside thereof.

Reference numerals 104 and 104A indicate a front axle and a rear axle supported by bearings across the left and right sides of the bogie frame 102, 105 and 105A indicate frame rolling front wheels fitted and fixed on the left and right sides of the front axle 104, and 106 indicate left and right front wheels. Front axle 1 between wheels 105, 105A
Torsion coil spring wrapped and supported on 04, 10
Reference numeral 7 denotes a rotary disk fitted and fixed to the front axle 104, and is fixed to the inner surface of the front wheel 105.

Reference numeral 108 denotes a short cylindrical portion protruding from and fixed to the inner outer circumferential surface of the rotary disk 107, and is connected and fixed by passing through the bent portion 106A at one end of the coil spring 106.

Reference numerals 109 and 109A are front and rear connecting rods extending from left to right of the truck frame 102, and 110 is a fixing plate whose base is inserted into and supported by the front axle 104, and whose upper end is connected and fixed to the front connecting rod 109. There is.

Reference numeral 111 is a short cylindrical portion protruding from and fixed to the inner outer peripheral surface of the base of the fixed plate 110, and is connected and fixed by passing through the bent portion 106B at the other end of the coil spring 106.

112, 112A are sprockets fitted and fixed to the front axle 104 and the rear axle 104A,
The chain 113 is supported by hanging.

114 and 114A are rear wheels fitted and fixed on the left and right sides of the rear axle 104.

In this way, when the rear part of the horizontally supported stage main body D is pulled upward and erected, the coil spring 106 wound and supported around the front axle 104 of the floor rolling cart X accumulates its elastic energy and then brakes to a stop. Conversely, by releasing the braking force and releasing the elastic energy stored in the coil spring 106, the floor rolling cart X is moved forward and the stage main body D is pulled forward and deployed.

(Effects of the Invention) As described above, the present invention first involves erecting a guide post C at a wall portion indoors and outdoors, and raising and lowering the rear part of the stage main body D along the guide post C. In a relatively simple stage device configured to move the front part of the stage main body D back and forth along the floor B, the front part of the stage main body D has a front part that moves back and forth on the floor B. The floor rolling carts X are connected, and the floor rolling carts
A stage device comprising a small stage 103 on the upper surface, and secondly, a guide post C is erected on a wall portion indoors and outdoors, and along the guide post C,
While moving the rear part of the stage main body D up and down,
The front part of the stage main body D is configured to move back and forth along the floor B, and a proscenium arch E that moves back and forth in an upright state is combined with the stage main body D to move backward on the floor B. In this relatively large-scale stage device, a proscenium arch E and a stage body raised in an inverted state are housed and supported by guide columns C. Floor rolling cart X that moves back and forth
We have also provided a stage device in which the small stage 103 is configured on the top surface of the floor rolling cart The small stage of the moving truck functions as a sub-stage and is extremely useful.

In addition, as the stage main body unfolds, a small stage is constructed using a floor rolling cart at the front of the stage floor, which increases the length of the stage floor in the front and rear directions, making it possible to expand the stage area. It has various effects such as being able to deal with

[Brief explanation of the drawing]

Figure 1 a, b, and c are front, plan, and side views showing the unfolded state of a high-floor type stage device, and Figure 2 a, b are the P-P line of Figure 1 a when it is unfolded and stored. A view in the direction of arrows, Figures 3a, b, and c are a front view, plan view, and side view showing the left upper structure of the guide column, Figure 4 is a front view showing the balance weight device, Figure 5
Figures a, b, and c are front views and left and right side views of the elevating member,
Figures 6a and b are front and plan views showing the motor drive device of the stage body, Figure 7 is a schematic diagram showing the main parts of the drive system of the stage body, and Figures 8a and b are bottom views of the stage body. Figures 9a, b, and c are front views, plan views, and side views showing the main parts of the motor drive device of the proscenium arch, and Figures 10a, b, and c are side links of the proscenium arch in the expanded state. Q showing the side view of the device and its cross-link structure
- Partially cut away arrow view along Q line and R-R line, No. 11
Figures a and b are a plan view showing the upper link device of the proscenium arch, and a partially cutaway side view showing the main parts of the parallel link structure, and Figures a and b are the guide columns and stage body in a raised floor type stage device. FIG. 13a, b, and c are front views, plan views, and side views showing the unfolded state of a low-floor type stage device; FIG. 13a and 13b are views taken along the line S--S in FIG. 13a during deployment and storage. FIGS. 15a and 15b are schematic diagrams showing the principle of a low-floor type stage apparatus, showing the guide column, the stage body, the unfolded state of the proscenium arch, and the operating state thereof. Figures 16a and b are enlarged longitudinal sectional front and side views showing the pull-out device of the stage main body of the high floor type, and Figures 17a and b are the unfolded state in which the floor rolling cart is connected and supported to the stage main body of the low floor type. 18 is an enlarged side view of the same, and FIGS. 19a and 19b are longitudinal sectional front views showing the front and rear axle portions of the floor rolling cart. Code list, A...Front wall, B...Floor, C...
Guide column, D...Stage body, E...Proscenium arch, F...Side link device, G...Upper link device, H...Balance weight device, I...
...Lifting member, J...Motor drive device, K...Motor drive device, L...Drawer device, X...Floor rolling cart.

Claims (1)

[Claims] 1. A guide post C is erected at a wall portion indoors and outdoors, and the rear part of the stage main body D is moved up and down along the guide post C, and the front part of the stage main body D is moved up and down from the floor. In a stage apparatus configured to move back and forth along a direction B, a floor rolling cart X that moves back and forth on the floor B is connected to the front part of the stage main body D, and the upper surface of the floor rolling cart X is connected to the front part of the stage main body D. A stage device characterized in that a small stage 103 is configured. 2. When storing the stage main body D upside down, a floor rolling cart X is installed at the bottom of the stage main body D,
The stage device according to claim 1, wherein the stage floor 33 of the stage body D and the small stage 103 of the floor rolling cart X are flush with each other when the stage body D is unfolded. 3. The stage device according to claim 1 or 2, wherein the lower floor of the floor rolling cart X serves as a hangar. 4. An elevating member I that can be guided up and down is provided on the guide column C that is fixed upright, and the elevating member I and the balance weight device H of the stage main body D are connected and supported,
Foldable stage legs 35 are provided at the bottom of the floor of the stage body D, among which stage legs 3 in the last row
5R and the lifting member I are connected to support shafts 36R and 37R.
Connect and support the front row stage legs 35F, 95.
2. The stage device according to claim 1, wherein floor rolling wheels 38, 38A are provided on axles 37F, 37B extending over the floor B so as to be able to roll freely on the floor B. 5. An elevating member I that can be guided up and down is provided on the guide column C that is fixed upright, and the elevating member I and the balance weight device H of the stage main body D are connected and supported,
A fixed stage leg 95 is provided at the lower part of the floor of the stage main body D, of which the rearmost stage leg 95R and the elevating member I are connected and supported by a support shaft 37A, and an axle 37F is provided across the front row stage leg 95F.
The stage device according to claim 1, wherein the stage device 37B is provided with floor rolling wheels 38, 38A that can freely roll on the floor B. 6 A guide post C is erected on the indoor/outdoor wall portion, and the rear part of the stage main body D is moved up and down along the guide post C, and the front part of the stage main body D is moved back and forth along the floor B. In addition, a proscenium arch E that moves back and forth in an upright state is combined with the stage main body D, and a proscenium arch E that moves backward on the floor B and a stage main body that stands up in an inverted state are combined. However, in a stage device which is stored and supported by the guide column C, the stage main body D
A stage device characterized in that a floor rolling trolley X that moves back and forth on a floor B is connected to the front part of the stage device, and a small stage 103 is constructed on the upper surface of the floor rolling trolley X. 7 When storing the stage main body D upside down, install a floor rolling cart X at the bottom of the stage main body D,
The stage device according to claim 6, wherein the stage floor 33 of the stage body D and the small stage 103 of the floor rolling cart X are flush with each other when the stage body D is unfolded. 8. The stage device according to claim 6 or 7, wherein the lower part of the floor of the floor rolling cart X serves as a hangar. 9. An elevating member I that can be guided up and down is provided on the guide column C that is fixed upright, and the elevating member I and the balance weight device H of the stage main body D are connected and supported;
Foldable stage legs 35 are provided at the bottom of the floor of the stage body D, among which stage legs 3 in the last row
5R and the lifting member I are connected to support shafts 36R and 37R.
Connect and support the front row stage legs 35F, 95.
7. The stage device according to claim 6, wherein floor rolling wheels 38, 38A are provided on axles 37F, 37B extending over the floor B, so as to be able to roll freely on the floor B. 10 An elevating member I that can be guided up and down is provided on the guide column C that is fixed upright, and the elevating member I and the balance weight device H of the stage main body D are connected and supported, and stage legs 9 are fixed on the lower floor of the stage main body D.
5, of which the rearmost stage leg 95R and the elevating member I are connected and supported by a support shaft 37A,
Axle 37 across front stage stage leg 95F
7. The stage device according to claim 6, wherein floor rolling wheels 38, 38A are provided on F, 37B so as to be able to roll freely on the floor B.