JP5428028B2 - Foldable storage stage - Google Patents

Description

  The present invention relates to a folding and storing stage that can be folded vertically and stored in a wall or the like when not in use.

  As a conventional folding storage type stage, for example, the one described in Patent Document 1 is known, and this folding storage type stage has a folding part having a hinge shaft extending in the left-right direction at a central part in the front-rear direction. And a winch provided at the lower part of the rear end of the stage main body, and a wire that is wound and fed out by rotation of the drum of the winch and whose tip is coupled to the lower part of the front end of the stage main body And has.

  When the stage main body is stored in such a conventional folding and storing stage, the winch rotates the drum from the horizontal development state of the stage main body and winds the wire, so that the other end in the front-rear direction of the stage main body is drawn toward one end. Thus, the stage main body is accommodated in the concave portion of the wall surface while being folded vertically.

  On the other hand, when the stage main body is deployed horizontally, the winch rotates the drum in the reverse direction to wind the wire, and the stage main body is lowered by its own weight while the other end of the stage main body is advanced. The stage body expands to a horizontal state.

JP 10-008750 A

  By the way, in this kind of conventional folding storage type stage, in order to arrange the appearance of the stage by hiding structures such as winches, wires and frames under the top plate of the stage body from the audience in the state of horizontal deployment of the stage body, Usually, a front cover is provided at the front end of the top plate and a side cover is provided at the side end of the top plate. However, since the stage main body is folded vertically when the stage main body is stored, if the side cover is fixed to the side end of the top plate, the side cover obstructs the folding of the stage main body.

  For this reason, conventionally, the side cover is usually provided detachably on the side edge of the top plate, and the stage body is folded after removing the side cover from the side edge of the top plate when the stage body is stored. At the time of deployment, the side cover is attached to the side end of the top plate again. However, in this case, there is a problem that it takes time and labor to attach and detach the side cover. In addition, when the stage body is folded in a state where the side cover is forgotten to be removed, there is a problem that the side cover mounting portion on the top plate or the side cover itself may be damaged.

  An object of the present invention is to advantageously solve the above-mentioned problems, and the folding and storing stage of the present invention includes a stage body that can be bent vertically by a bending portion having a hinge shaft extending in the left-right direction. In the foldable and retractable stage, a side cover is provided for each side end of each of the plurality of portions of the stage main body that are partitioned in the front-rear direction, and the stage main bodies are adjacent to each other. The side covers are arranged so that the side covers are offset from each other in the left-right direction between the portions.

  In such a folding storage type stage, when the stage main body is stored, the bent portion of the stage main body is bent from the horizontal unfolded state of the stage main body, and the stage main body is stored in the concave portion of the wall surface while being folded vertically. . On the other hand, when the stage main body is horizontally deployed, the bent portion of the stage main body is extended from the folded storage state of the stage main body, so that the stage main body is unfolded horizontally on the floor surface or the like. When the stage main body is stored, a side cover is provided for each of the side end portions of the plurality of portions of the stage main body that are partitioned in the front-rear direction at the bent portion. Even if the stage body is not removed, there will be no hindrance to the folding of the stage main body at the bent portion, and when the stage main body is horizontally deployed, the side covers between the adjacent parts of the stage main body are mutually in the left-right direction. Since they are offset, the side covers do not interfere with each other even if the side covers have such lengths that their ends overlap each other when viewed from the side.

  Therefore, according to the folding storage type stage of the present invention, it is possible to save labor and time for attaching and detaching the side cover, and even if the stage body is folded with the side cover attached, the side to the top plate can be saved. The attachment part of the part cover and the side cover itself are not damaged. In addition, the side covers can be made long enough to overlap the ends when viewed from the side, so that the structure under the top plate of the stage body can be sufficiently hidden from the audience, and the appearance of the stage can be sufficiently adjusted. it can.

  In the folding and storing stage of the present invention, the stage main body is located at the front end bracket positioned at the front end of the stage main body, the rear end bracket positioned at the rear end of the stage main body, and the bent portion. Intermediate brackets, and between the front end bracket and the intermediate bracket, between the rear end bracket and the intermediate bracket, and between the intermediate brackets when there are three or more intermediate brackets. Are connected to each other by a link member that forms a four-bar link with the brackets having hinge shafts extending in the left-right direction, and the top plate of the stage body is attached to the link member, and the front end bracket A wheel may be provided at the lower end of the rear end bracket, and the rear end bracket may be disposed on the floor surface.

  If it does in this way, between the front end bracket and the intermediate bracket, between the rear end bracket and the intermediate bracket, and when there are three or more intermediate brackets, the intermediate brackets extend in the left-right direction. The stage body is placed on the floor surface in a folded state and in a horizontally unfolded state because it is connected to each other by link members that form a four-bar link together with the brackets having a hinge shaft. Since the change in the relative posture between the rear end bracket and the front end bracket provided with the wheels can be set arbitrarily, for example, by making the four-bar link a substantially parallel link, the change in the relative posture is substantially eliminated. The front end bracket can be moved forward and backward while the wheel is always facing downward when the stage body is horizontally deployed and folded. That.

  Further, in the folding storage type stage of the present invention, a front cover is provided on a side portion of the front end bracket, and the front cover on the side portion of the front end bracket and the stage main body in a state where the stage main body is unfolded. The side cover adjacent to the part cover may be disposed so as to be offset from each other in the left-right direction.

  In this way, the front cover on the side of the front end bracket and the side cover adjacent to the front cover in a state where the stage body is unfolded are offset from each other in the left-right direction. Since the front cover of the part and the front end of the side cover can be made to overlap each other, the appearance of the stage can be further adjusted.

  Furthermore, in the folding storage type stage of the present invention, the rear end bracket is provided with a closing plate extending in the left-right direction, and the front cover of the side portion of the front end bracket is bent on the stage main body. In the state, it may be adjacent to or in contact with the closing plate.

  In this way, with the stage body folded, the front cover on the side of the front end bracket adjoins or abuts the closing plate extending in the left-right direction of the rear end bracket, so that the stage main body is folded and stored. In this state, the gap between the front end bracket and the rear end bracket can be covered with the front cover and the closing plate, thereby preventing foreign matter from entering the gap between the front end bracket and the rear end bracket. It is possible to prevent the foreign matter from obstructing the unfolding operation of the stage main body.

(A), (b) is the top view of the unfolded state which shows one Example of the folding storing type | formula stage of this invention, and the front view of the unfolded state. (A), (b) and (c) are the side view of the unfolding state which shows the folding storage type stage of the said Example, the side view in the middle of folding or unfolding, and the side view of a folding state. (A) and (e) are a plan view and a side view showing the folding and retractable stage of the above embodiment in a transparent state, and (b), (c) and (d) are It is sectional drawing which follows AA line, BB line, and CC line | wire. (A) And (b) is the top view and expanded side view which fold the folding storage type stage of the said Example, and show in a see-through | perspective state. (A) And (b) is the top view and front view which expand and show the principal part of the winch of the folding storage type stage of the said Example. FIG. 3A is an enlarged plan view of the right end portion of FIG. 3A, showing the folding and retracting stage of the above embodiment in a transparent state, and FIG. 3B is a folding and storing stage of the above embodiment. FIG. 3E is an enlarged side view of FIG. 3E shown in a transparent state, and FIG. 3C is a cross-sectional view taken along the line DD in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1A and 1B are a plan view and a front view showing one embodiment of the folding and storing stage of the present invention in an unfolded state, and FIGS. 2A, 2B and 2C. ) Is a side view in an unfolded state, a side view in the middle of folding or unfolding, and a side view in the folded state, showing the folding and storing stage of the above embodiment. In the figure, reference numeral 1 is a stage body, 2 is a winch, and 3 is a wire. , FL represents a floor surface, W represents a wall surface, and P represents a recess.

  As shown in FIG. 1, the folding storage type stage of this embodiment includes a stage main body 1 that can be bent vertically by a bending portion 1a at the center in the front-rear direction of the stage having a hinge shaft extending in the left-right direction, and the stage main body. The winch 2 provided at the rear end portion (upper end portion in FIG. 1 (a)) and the two drums of the winch 2 are wound and fed out and the front end portion (FIG. a) includes two wires 3 engaged with the pulley 1n at the lower end), and the stage 3 is moved as shown in FIG. 1 is horizontally developed on the floor surface FL and folded and stored in the recess P of the wall surface W.

  3 (a) and 3 (e) are a plan view and a side view showing the folding and retractable stage of this embodiment in a transparent state, and FIG. 3 (b), FIG. 3 (c) and FIG. (D) is a cross-sectional view along the lines AA, BB and CC in FIG. 3 (a), and FIG. 4 (a) and FIG. It is the top view and expanded side view which fold up the folding storage type stage of an example, and show in a see-through | perspective state.

  As shown in FIGS. 3 and 4, the stage main body 1 includes a bent part 1a, a front frame 1b positioned on the front side of the bent part 1a, and a rear frame 1c positioned on the rear side of the bent part 1a. The top plate 1d stretched on the front frame 1b and the rear frame 1c, the front cover 1e provided from the front end of the front frame 1b to both sides, the front frame 1b and the rear frame 1c, respectively. The side frame 1b and the rear frame 1c are provided with offset side covers 1f as described later so as not to interfere with each other when the stage body 1 is folded. It has five longitudinal beams consisting of square pipes and four left and right beam members connecting them together.

  Here, on the lower side of the front frame 1b, three front link members 1g each made of, for example, a square pipe are parallel to the three front and rear direction beams of the left and right ends and the center of the front frame 1b. Further, under the rear frame 1c, three rear link members 1h each made of, for example, a square pipe are arranged in parallel with the three front and rear direction beams of the left and right ends and the center of the rear frame 1c. The front end portions of the front frame 1b and the front link member 1g are pivotally supported by a front end bracket 1i extending in the left-right direction so as to be swingable in the vertical direction, while the rear end portions of the rear frame 1c and the rear link member 1h Is supported by the five rear end brackets 1j so as to be swingable in the vertical direction, and the rear end portions of the front frame 1b and the front link member 1g of the intermediate bracket 1k extending in the left-right direction of the bent portion 1a. On the other hand, the rear frame 1c and the front end of the rear link member 1h are pivotally supported by the rear portion of the intermediate bracket 1k extending in the left-right direction of the bent portion 1a. Yes.

  With this configuration, three sets of four-node parallel links are formed before and after the bent portion 1a, and the front end bracket 1i, the intermediate bracket 1k, and the rear end bracket 1j are vertically moved by the parallel movement function of the four-node parallel links. The front frame 1b and the rear frame 1c, and the top plate 1d and the side cover 1f provided on the front frame 1b and the rear frame 1c, while maintaining the extended state, are hinge shafts 4 extending in the left-right direction at the bent portion 1a. Through a link support shaft of the book, it can swing between a horizontally deployed state and a bent state.

  The front cover 1e is provided in a substantially U shape so as to cover the front end bracket 1i from the front end to both sides, and the front end bracket 1i is placed on the floor surface FL by five wheels 1q provided at the lower end thereof. On the other hand, the rear end bracket 1j has a lower end portion disposed on the floor surface FL in the recess P and is fixed, and the intermediate bracket 1k has five adjustable heights provided at the lower end portion. By bringing the leg 1m into contact with the floor surface FL, the bent portion 1a is supported on the floor surface FL when the stage main body 1 is horizontally deployed.

  Furthermore, the folding storage type stage of this embodiment has an intermediate bracket 1k as a folding start mechanism for starting the folding of the stage main body 1 with the winding of the two wires 3, as shown in FIG. Two wire engaging shaft members 4 are provided in the lower part of the plate so as to extend horizontally in the left-right direction, and the deployment of starting the deployment of the stage body 1 as the two wires 3 are fed out is provided. As a starting mechanism, as shown in FIG. 4B, a front frame pushing spring 5 is provided, and the front frame pushing spring 5 swings, for example, the front frame 1b and the rear frame 1c to the intermediate bracket 1k, respectively. It consists of a helical spring inserted through two front and rear link support shafts that can be supported, one end of which is hooked to the intermediate bracket 1k, The end can be hooked to the front frame 1b or the rear frame 1c, and as the stage body 1 is bent, the other end is hooked to the front frame 1b or the rear frame 1c, and a helical spring is provided. It is twisted to hold a biasing force that elastically biases the front frame 1b and the rear frame 1c away from each other.

  5 (a) and 5 (b) are an enlarged plan view and a front view showing the main part of the winch of the folding and storing stage of the above embodiment, and as shown, the folding and storing of this embodiment is shown. As for the winch 2 in the stage, only the left side in FIGS. 3 (a) and 4 (a) is representatively shown, but two drum support brackets 2a fixed on the floor surface FL and their drum supports are shown. Two drums 2b that are rotatably supported by the bracket 2a around an axis extending in the left-right direction, and a connecting shaft 2c that couples the two drums 2b so as to be integrally rotatable (FIG. 3 (a) and A motor 2d with a speed reducer that is provided outside the drum support bracket 2a shown in FIG. 4A and that rotates the drum 2b supported by the drum support bracket 2a. Motor 2d equipped reduction device incorporates a normal brake to brake the output shaft when the power supply stop to the motor.

  One end of each of the two wires 3 is inserted and fixed in a wire fixing hole penetrating each end of the two drums 2b of the winch 2 in the diameter direction, and the other end of each of the wires 3 is fixed. The portion is connected and fixed to the two drum support brackets 2a of the winch 2, and the middle portion of the wires 3 can be swung up and down inside the front end bracket 1i as shown in FIG. 3 (a). It is hung around two pulleys 1n rotatably supported around an axis perpendicular to the axis, and is hung on the lower side of the two wire engaging shaft members 4.

  Furthermore, in the folding storage type stage of this embodiment, as shown in FIGS. 1A and 1B, a motor controller 7 is provided near the rear end bracket 1j at the right end in the figure, and FIGS. As shown in FIG. 4A, in the drawing, a normal limit switch 1o as a folded state detection unit is provided on the side of the rear end bracket 1j at the right end, and this limit switch 1o is, for example, the stage body 1 The operating arm is in a free state until the arm is completely folded, and an OFF signal is output to the motor controller 7. When the stage body 1 is completely folded, the operating arm comes into contact with the front end bracket 1i and is turned on. The signal is output to the motor controller 7.

  In addition, in the folding storage type stage of this embodiment, as shown in FIGS. 3 (a) and 4 (a), in the figure, there is still another one as a deployed state detection unit inside the rear end bracket 1j on the left end. A normal limit switch 1p is provided. The limit switch 1p is, for example, in a state where the operating arm is in a free state until the stage main body 1 is completely in a horizontally developed state, and outputs an OFF signal to the motor controller 7, and the stage main body. When 1 is completely in a horizontally deployed state, the operating arm comes into contact with the rear link member 1 h to operate, and an ON signal is output to the motor controller 7.

  Furthermore, in the folding storage type stage of this embodiment, as shown in FIGS. 1, 3 (a), and 4 (a), in the drawing of the front end portion of the stage main body 1, blue that indicates a normal operation state is shown at the right end portion. And a display panel 8 provided with a connector and a remote controller 9 connected to the connector of the display panel 8, and a blue lamp of the display panel 8 and The red lamp and the control switch provided in the remote controller 9 are connected to the motor controller 7.

  The motor controller 7 here includes, for example, a normal microcomputer that operates based on a predetermined program and a normal motor driver that drives the motor under the control of the microcomputer. In accordance with the operation of the switch, the motor 2d with a speed reducer of the winch 2 is, for example, normally rotated when the stage body 1 is horizontally deployed, and is reversely operated, for example, when folded, and stopped at a desired position. When 1p outputs an ON signal, the forward rotation operation of the motor 2d with a speed reducer is stopped to end the horizontal deployment, and when the limit switch 1o outputs an ON signal during folding, the reverse rotation operation of the motor 2d with a speed reducer is stopped. End folding.

  6 (a) is an enlarged plan view of the right end portion of FIG. 3 (a), showing the folding and retractable stage of the above embodiment in a perspective view, and FIG. 6 (b) is a perspective view of the above embodiment. FIG. 3 (e) is an enlarged side view showing the folding and retractable stage in a transparent state, and FIG. 6 (c) is along the line DD in FIG. 6 (b) and partially omitted. As shown in the drawing, in this embodiment, as shown in the drawing, each side part of each side of the front and rear parts of the stage main body 1 is a part partitioned in the front-rear direction by the bent part 1a. The side covers 1f are provided, and the side covers 1f are arranged so that the side covers 1f are offset from each other in the left-right direction between adjacent portions of the stage body 1, and the side portions 1f are arranged. Cover 1f is covered with a substantially inverted L-shaped bracket 1r. It is fixed to the lower surface.

  Further, in this embodiment, a front cover 1e that wraps around both sides of the front end bracket 1i and a side cover 1f that is adjacent to the front cover 1e in a state where the stage body 1 is unfolded are mutually in the left-right direction. These side covers 1f are arranged so as to be offset.

  Further, in this embodiment, the rear end bracket 1j is provided with a closing plate 1s extending in the left-right direction, and the front covers 1e on both sides of the front end bracket 1i in the state where the stage body 1 is bent are connected to the closing plate 1s. It is made to adjoin or abut.

  In the folding storage type stage of this embodiment, when the stage main body 1 is stored, the motor 2d with a speed machine of the winch 2 can be moved from the horizontal deployment state of the stage main body 1 by operating the control switch of the remote controller 9. The two drums 2 b are rotated to wind up the two wires 3, and along with the winding of the wires 3, first, the two wire engaging shafts 4 are brought into the stage main body 1 by the tension of the two wires 3. When the folding portion 1a is lifted to start the folding of the stage body 1 in the vertical direction, and the winch 2 winds up the two wires 3, the stage body 1 is moved vertically as shown in FIG. 2 (b). When the stage body 1 is folded into the folded state as shown in FIG. 2 (c) while being folded in, the operating arm of the limit switch 1o is moved to the front end brace. Tsu contact with the limit switch 1o Doo 1i outputs an ON signal to the motor controller 7, thereby the motor controller 7 stops operating the reducer-equipped motor 2d winch 2. During this folding, the front frame pushing spring 5 is twisted by the front frame 1b, the rear frame 1c, and the intermediate bracket 1k to hold an elastic force for pushing out, which will be described later.

  On the other hand, when the stage main body 1 is deployed horizontally, the control switch of the remote controller 9 is operated, so that the motor 2d with a speed reducer of the winch 2 is reversed from the state of winding the two drums 2b from the folded state of the stage main body 1. The two wires 3 are rotated and the two wires 3 are fed out. As the wires 3 are fed out, the front frame pushing spring 5 first separates the front frame 1b and the rear frame 1c from the intermediate bracket 1k by the elastic force. By energizing it so as to swing in the direction, the folding portion 1a of the stage main body 1 is expanded to start deployment of the stage main body 1, and thereafter, the intermediate portion of the stage main body 1 is lowered by its own weight and the stage main body 1 The front end of the stage advances, and the stage main body 1 expands to a horizontal state.

  When the stage main body 1 is in the horizontal unfolded state, the operating arm of the limit switch 1p comes into contact with the rear link member 1h, and the limit switch 1p outputs an ON signal to the motor controller 7, whereby the motor controller 7 is connected to the winch 2. The motor 2d with a speed reducer is stopped.

  Thus, according to the folding and storing stage of this embodiment, the stage body 1 can be deformed between the folding and storing state in the concave portion P of the wall surface W and the horizontally deployed state on the floor surface FL. When the stage main body 1 is stored, the side covers 1f are attached to the front and rear side ends of the stage main body 1 in the front-rear direction at the bent portion 1a. Therefore, even if the side cover 1f is not removed, there is no hindrance to the folding of the stage main body 1 at the bent portion 1a, and when the stage main body 1 is deployed horizontally, Since the side covers 1f are offset from each other in the left-right direction with respect to the rear portion, the side covers 1f can be arranged to each other even if the side covers 1f are overlapped with each other in a side view. Do not interfere

  Therefore, according to the folding storage type stage of this embodiment, it is possible to save labor and time for attaching / detaching the side cover 1f, and even if the stage body 1 is folded with the side cover 1f attached, the stage body 1 can be folded. The attachment of the side cover 1f to the plate 1d and the side cover 1f itself are not damaged. In addition, since the side covers 1f can be made to have lengths that overlap with each other when viewed from the side, the winch 2, the wires 3, the frames 1b, 1c, etc. under the top plate 1d of the stage body 1 can be sufficiently viewed from the audience. It can be hidden and the appearance of the stage can be fully adjusted.

  Further, in the folding storage type stage of this embodiment, the stage main body 1 is bent with a front end bracket 1 i located at the front end of the stage main body 1, a rear end bracket 1 j located at the rear end of the stage main body 1, An intermediate bracket 1k positioned in the portion 1a, and a hinge shaft extending in the left-right direction between the front end bracket 1i and the intermediate bracket 1k and between the rear end bracket 1j and the intermediate bracket 1k. The front frame 1b, the rear frame 1c, the front link member 1g and the rear link member 1h as link members constituting a four-bar link together with these brackets are connected to each other. It is attached to the front frame 1b or the rear frame 1c, and a wheel 1q is provided at the lower end of the front end bracket 1i. Front covers 1e are provided on the front and both sides of the front end bracket 1i, and the front covers 1e on both sides of the front end bracket 1i and the side adjacent to the front cover 1e in a state where the stage body 1 is unfolded. The part cover 1f is disposed so as to be offset from each other in the left-right direction, and the rear end bracket 1j is fixed to the floor surface FL.

  According to the folding storage type stage of this embodiment, there are hinge shafts extending in the left-right direction between the front end bracket 1i and the intermediate bracket 1k and between the rear end bracket 1j and the intermediate bracket 1k. Since the stage main body 1 is folded and horizontally deployed, the rear end bracket 1j fixed to the floor surface FL is connected to each other by a link member that forms a four-node parallel link together with the bracket of FIG. And the front end bracket 1i provided with the wheels 1q do not change, so that the front end bracket 1i is kept in contact with the floor surface FL with the wheels 1q facing downward when the stage body 1 is horizontally deployed and folded. The front cover 1e on both sides of the front end bracket 1i and the stage body 1 can be moved forward and backward. Since the side cover 1f adjacent to the front cover 1e is offset from each other in the left-right direction, the front cover 1e on both sides and the front end of the side cover 1f overlap each other. So you can further improve the appearance of the stage.

  Furthermore, according to the folding storage type stage of this embodiment, the rear end bracket 1j is provided with a closing plate 1s extending in the left-right direction, and the front covers 1e on both sides of the front end bracket 1i are connected to the stage body 1. Since it is configured to be adjacent to or abut on the closing plate 1s in the bent state, the front cover 1e has a gap between the front end bracket 1i and the rear end bracket 1j in the folded storage state of the stage body 1. And the closing plate 1s, which can prevent foreign matter from entering the gap between the front end bracket 1i and the rear end bracket 1j, and the foreign matter prevents the stage body 1 from being unfolded. Can be avoided.

  As described above, although illustrated based on the illustrated example, the folding and storing stage of the present invention is not limited to the above-described example, and can be appropriately changed within the scope of the claims. In the above embodiment, the front side cover 1f is positioned inside the front cover 1e, and the front cover 1f and the front cover 1e are offset from each other. Although the rear side cover 1f is located on the inner side, the present invention is not limited to this and can be changed as appropriate.

  The side cover 1f is attached to the lower surface of the top plate 1d in the above embodiment, but is not limited to this. For example, the front frame 1b or the rear frame 1c, or the front link member 1g or the rear part. You may perform with respect to the link member 1h.

  Further, in the above-described embodiment, the side covers 1f are provided at both end portions of the top plate 1d. For example, the stage main body 1 is developed and stored along the wall surface on the floor surface having the wall surface on the side portion. In such a case, the side cover 1f does not have to be provided at the side end of the top plate 1d facing the wall surface, so that the side cover 1f is provided only on one side end of the top plate 1d. In this case, the front cover 1e may be provided only on the side portion on the side where the side cover 1f is provided, in addition to the front portion of the front end bracket 1i.

  In the above embodiment, the front cover 1e is provided on the front and both sides of the front end bracket 1i. For example, when the stage main body 1 is expanded so as to be connected to an existing stage, the front end bracket 1e is expanded after the expansion. Since the front part of 1i is hidden on the existing stage, the front cover 1e at the front part of the front end bracket 1i can also be omitted.

  In the above embodiment, the stage main body 1 is unfolded and stored by feeding and winding the wire 3 with the electric winch 2, but the stage main body 1 is driven to rotate, for example, a hinge shaft by an electric rotation mechanism. Or may be deployed and stored by relatively pushing and pulling the front frame and the rear frame with an air cylinder, or may be deployed and stored manually.

  Thus, according to the folding and storing stage of the present invention, it is possible to save labor and time for attaching and detaching the side cover, and even if the stage body is folded with the side cover attached, the side part to the top plate There is no damage to the cover mounting part or the side cover itself. In addition, the side covers can be made long enough to overlap the ends when viewed from the side, so that the structure under the top plate of the stage body can be sufficiently hidden from the audience, and the appearance of the stage can be sufficiently adjusted. it can.

DESCRIPTION OF SYMBOLS 1 Stage body 1a Bending part 1b Front frame 1c Rear frame 1d Top plate 1e Front cover 1f Side cover 1g Front link member 1h Rear link member 1i Front end bracket 1j Rear end bracket 1k Intermediate bracket 1m Leg 1n Pulley 1o, 1p Limit switch 1q Wheel 1r Bracket 1s Closing plate 2 Winch 2a Drum support bracket 2b Drum 2c Connection shaft 2d Motor with speed reducer 3 Wire 4 Wire engaging shaft member 5 Front frame push spring 7 Motor controller 8 Display panel 9 Remote controller FL Floor Surface P Recess W Wall

Claims (4)

In a foldable and retractable stage comprising a stage body (1) that can be folded vertically by one or more odd number of folds (1a) having a hinge shaft extending in the left-right direction,
The top plate (1d) of the stage body has a plurality of portions separated in the front-rear direction at the bent portion (1a),
A side cover (1f) is provided at each side end of the plurality of portions of the top plate (1d) so as to extend in the front-rear direction for each portion.
The foldable and retractable stage, wherein the side covers (1f) provided in the portions adjacent to each other of the top plate are arranged so as to be offset from each other in the left-right direction. The stage main body (1) is positioned at a front end bracket (1i) positioned at the front end of the stage main body, a rear end bracket (1j) positioned at the rear end of the stage main body, and the bent portion (1a). An intermediate bracket (1k)
When there are three or more intermediate brackets (1k) between the front end bracket (1i) and the intermediate bracket (1k), between the rear end bracket (1j) and the intermediate bracket (1k) The intermediate brackets (1k) are connected to each other by link members (1b, 1c, 1g, 1h) having a hinge shaft extending in the left-right direction and forming a four-bar link together with the brackets,
The top plate (1d) of the stage body is attached to the link member,
A wheel (1q) is provided at the lower end of the front end bracket (1i),
The folding storage type stage according to claim 1, wherein the rear end bracket (1j) is disposed on a floor surface (FL). A front cover (1e) is provided on the side of the front end bracket (1i),
The front cover (1e) on the side of the front end bracket (1i) and the side cover (1f) adjacent to the front cover (1e) in a state where the stage body (1) is unfolded, 3. The folding and storing stage according to claim 2, wherein the folding and storing stage is disposed so as to be offset from each other in the left-right direction. The rear end bracket (1j) is provided with a closing plate (1s) extending in the left-right direction,
The front cover (1e) on the side of the front end bracket (1i) is adjacent to or abuts on the closing plate (1s) in a state in which the stage body (1) is bent. 3. The folding storage type stage according to 3.

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