Stage car

Abstract

To provide a stage car capable of enhancing presentation effects on a stage and also improving an image of the whole stage.SOLUTION: There is provided a stage car whose load storage space is used as a stage with a left side face panel (or a right side face panel) of the vehicle open. A support frame structure 70 is provided in the load storage space, and the support frame structure 70 comprises a front left strut 72, a front right strut 74, a rear left strut 76, and a rear right strut 78, wherein first connection member 82 is connected between the front left strut 72 and rear left strut 76 (or between the front right strut 74 and rear right strut 78). A first rail member 96 is provided from the first connection member 82 to one side to face the front connection member 86, and a second rail member 98 is provided from the first connection member 82 to the other side to face the rear connection member 88. The first rail member 96 is fitted with a first curtain 92 in a free opening / closing state, and the second rail member 98 is fitted with a second curtain 94 in a free opening / closing state.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a stage car that can be moved to a park, square, etc. and used as an outdoor stage, etc. [Background technology]

[0002] Vehicles such as trucks modified to become stage cars have been proposed (see, for example, Patent Document 1). In such stage cars, a front panel, a rear panel, a left side panel, a right side panel and a top panel are provided on the front, rear, left side panel, right side panel and top panel of the vehicle's loading platform, respectively, and the loading platform storage space is defined by the front panel, rear panel, left side panel, right side panel and top panel. In addition, at least the left side panel (or the right side panel) is configured to be open, and by opening this left side panel (or the right side panel), the loading platform storage space of the vehicle can be used as a stage.

[0003] Such stage cars are often modified using so-called wing-type trucks. In this wing-type truck, the left side panel and upper left panel on the left side of the loading platform constitute the left wing, and the right side panel and upper right panel on the right side of the loading platform constitute the right wing, and the left wing and right wing are configured to open and close on the loading platform, so that by opening the left wing (or right wing), for example, it is easy to modify it into a stage with an open left side (or right side). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6736194 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with this type of stage car, a stage is set up on the loading platform of the vehicle, and people can sing and play on this stage, so it can be used as a mobile stage to a certain extent, but there is a problem that the stage is always in an open state, and therefore the dramatic effects on the stage cannot be fully achieved.

[0006] For example, when a singer or performer on stage is replaced, the change is visible to the audience, making it impossible to achieve the dramatic effect of the next singer or performer suddenly appearing on stage. Also, when a singer or performer is replaced, the stage background and lighting may be changed, and in such cases the change in the stage background and lighting can be seen by the audience, which leads to a decline in the overall image of the stage.

[0007] An object of the present invention is to provide a stage car that can enhance the production effect on stage and improve the overall image of the stage. [Means for solving the problem]

[0008] The stage car of the present invention comprises a front panel, a rear panel, a left side panel, a right side panel and a top panel which cover the front, rear, left side, right side and top of the loading platform of the vehicle, the front panel, the rear panel, the left side panel, the right side panel and the top panel defining a loading platform storage space, and the loading platform storage space can be used as a stage by opening at least the left side panel or the right side panel, a support frame structure is provided within the loading platform storage space, the support frame structure includes a front-left support pillar, a front-right support pillar, a rear-left support pillar and a rear-right support pillar arranged at four corners of the loading platform storage space, a first connection member is connected between upper ends of the front-left support pillar and the rear-left support pillar or between upper ends of the front-right support pillar and the rear-right support pillar, a front connection member is connected between upper ends of the front-left support pillar and the front-right support pillar, and a rear connection member is connected between upper ends of the rear-left support pillar and the rear-right support pillar, The device is characterized in that a first rail member is provided on one side of the first connecting member toward the front connecting member, and a second rail member is provided on the other side of the first connecting member toward the rear connecting member, a first curtain is attached to the first rail member so as to be freely opened and closed, and a second curtain is attached to the second rail member so as to be freely opened and closed.

[0009] In such a stage car, it is preferable that the first and second rail members are attached to the first connecting member in parallel in a vertical direction perpendicular to the longitudinal direction thereof, and that the opposing open end portions of the first and second rail members overlap each other over a predetermined range in this vertical direction. By configuring in this manner, the open end portions of the first and second curtain members can overlap in this vertical direction when they are closed, thereby preventing the audience from seeing through the gap between the first and second curtains.

[0010] It is also preferable to provide an opening / closing drive mechanism for moving the first and second curtain members in the opening / closing direction, the opening / closing mechanism of the opening / closing drive mechanism being composed of a pair of rotating members and an endless member wound between the rotating members, with a part of the first curtain being associated and connected to one side running portion (or the other side running portion) of the endless member, and a part of the second curtain being associated and connected to the other side running portion (or the one side running portion) of the endless member. With this configuration, the first and second curtains can be simultaneously opened and closed by a single opening / closing mechanism.

[0011] It is also preferable to dispose a plurality of first moving members in the opening direction of the first curtain, support these first moving members on the first rail while connected via first moving connecting members, attach the most forward first moving member to the upper end of the first curtain, and connect the most rearward first moving member to one side running part (or the other side running part) of the endless member of the opening / closing drive mechanism. By configuring in this way, it is possible to increase the opening and closing range of the first curtain on one side of the stage.

[0012] It is also preferable that the second curtain has a plurality of second moving members disposed in its opening direction, the plurality of second moving members are connected via second moving connecting members and supported on the second rail, the most forward second moving member is attached to the upper end of the second curtain, and the most rearward second moving member is connected to the other side running portion (or one side running portion) of the endless member of the opening / closing drive mechanism. By configuring in this way, the opening / closing range of the second curtain on the other side of the stage can be increased.

[0013] In such a stage car, the first moving members are composed of a first moving body, and a first upper roller means and a first lower roller means which clamp the first support portion of the first rail member from above and below, and the first curtain is attached to the first moving body of the first moving member at the forefront via a first curtain mounting member, and one side running portion (or the other side running portion) of the endless member can be connected to the first moving body of the first moving member at the rearmost end via a first drive connecting member.By configuring in this manner, the first curtain can be opened and closed stably along the first rail member.

[0014] In addition, these second movable members are composed of a second movable body, and a second upper roller means and a second lower roller means which clamp the second support portion of the second rail member from above and below, and the second curtain is attached to the second movable body of the second movable member at the forefront via a second curtain mounting member, and the other side running portion (or one side running portion) of the endless member can be connected to the second movable body of the second movable member at the rearmost end via a second drive connecting member.By configuring in this manner, the second curtain can be opened and closed stably along the second rail member.

[0015] In such a stage car, the opening and closing drive mechanism may be composed of a first opening and closing mechanism for opening and closing the first curtain, and a second opening and closing mechanism for opening and closing the second curtain.When configured in this manner, the opening and closing of the first curtain can be controlled by the first opening and closing mechanism, and the opening and closing of the second curtain can be controlled by the second opening and closing mechanism.

[0016] Furthermore, a second connecting member and / or a mounting connecting member can be connected between the upper ends of the front right support and the rear right support (or between the upper ends of the front left support and the rear left support), and a mounting rail can be attached to this second connecting member and / or the mounting connecting member, and the lighting device can be mounted using this mounting rail so that its position can be freely adjusted. Effect of the Invention

[0017] According to the stage car of the present invention, a support frame structure is provided within the loading platform storage space of the vehicle's loading platform, and this support frame structure comprises a front left support pillar, a front right support pillar, a rear left support pillar and a rear right support pillar arranged in the four corners of the loading platform storage space, a first connecting member is connected between the upper ends of the front left support pillar and the rear left support pillar, a first rail member is provided on one side of the first connecting member and a second rail member is provided on the other side of the first connecting member, a first curtain is attached to the first rail member and a second curtain is attached to the second rail member, so that the loading platform storage space can be used as a stage with the left side of the loading platform facing the audience.

[0018] In addition, since the first curtain is attached to the first rail member so as to be freely opened and closed, and the second curtain is attached to the second rail member so as to be freely opened and closed, the loading platform storage space serving as a stage can be opened and closed by the first and second curtains, and can also be opened and closed in both directions, thereby enhancing the stage presentation effect. The first connecting member may also be attached between the upper ends of the front right support pillar and the rear right support pillar, in which case the right side of the loading platform can be used as a stage facing the audience. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view showing a simplified view of an embodiment of a stage car according to the present invention installed as a stage. [Diagram 2] FIG. 2 is a simplified perspective view, with some parts omitted, showing the loading platform of the vehicle used as the stage car of FIG. 1. [Diagram 3] FIG. 3 is a simplified perspective view, with parts removed, of the carrier bed of FIG. 2 with the support frame structure attached thereto; [Figure 4] FIG. 4 is a simplified plan view showing the mounting state of FIG. 3; [Diagram 5] 2 is a simplified explanatory diagram for explaining the open and closed states of first and second curtains in the stage car of FIG. 1. [Figure 6] FIG. 2 is an explanatory diagram showing the state when the first and second curtains in the stage car of FIG. 1 are in an open state. [Figure 7] FIG. 2 is an explanatory diagram showing the state when the first and second curtains are in a closed state in the stage car of FIG. 1; [Figure 8] FIG. 2 is a cross-sectional view showing a main part of the opening / closing drive mechanism in the stage car of FIG. [Figure 9] In the stage car of Figure 1, a first movable member is provided in association with the first curtain, where Figure 9(a) is a front view showing the first movable member connected to the endless member of the opening and closing drive mechanism, Figure 9(b) is a front view showing the first movable member positioned in the middle, and Figure 9(c) is a front view showing the first movable member attached to the first curtain. [Figure 10] 2 is a cross-sectional view showing a supporting state of a first connecting member that connects a first moving member and an endless member in the stage car of FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of a stage car according to the present invention will be described with reference to the attached drawings. In this embodiment, the bed of a wing-type truck is used as the stage car, and the bed storage space is modified to form the stage car, but it is also possible to use the bed of a normal truck and modify the bed and the bed storage space as well.

[0021] 1 and 2, the illustrated stage car 2 includes a front panel 14, a rear panel 16, a left side panel 18, a right side panel 20, and a top panel 22 that cover the front 4, the rear 6, the left side 8, the right side 10, and the top 12 of the vehicle's loading platform 3, and the loading platform storage space 24 is defined by the front panel 14, the rear panel 16, the left side panel 18, the right side panel 20, and the top panel 22. In this embodiment, since a wing-type truck is used as the vehicle, the left side panel 18 is composed of a left side lower panel 18a and a left side upper panel 18b that are divided vertically, the top panel 22 is composed of a top left panel 22a and a top right panel 22b that are divided horizontally, and the right side panel 20 is composed of a right side lower panel and a right side upper panel that are divided vertically, although not shown (most of these panels are omitted in FIG. 2).

[0022] 1 and 2 to the front side of the bed frame structure 26, and the right side lower panel (not shown) is rotatably attached to the bed frame structure 26 at the rear side in Figures 1 and 2. The left side upper panel 18b and the top left panel 22a are configured to rotatably form a left wing section 28, and the right side upper panel (not shown) and the top right panel 22b are configured to rotatably form a right wing section 30, and the left wing section 28 and the right wing section 30 are attached to the bed frame structure 26 to rotatably form an opening and closing movement.

[0023] In this embodiment, the left side of the loading platform 3 is configured to face the audience, and when this loading platform 3 is used as a stage, as shown in FIG. 1, the left side lower panel 18a is held in an open state facing outward, and the left wing portion 28 (left side upper panel 18b and top left panel 22a) is held in an open state facing upward. In this open state, the left side 8 of the loading platform 3 is open to the outside, and the loading platform storage space 24 can be used as a stage with the left side 8 side open, and a curtain body 32, which will be described later, is attached to the front side of this stage.

[0024] When the right side 10 of the loading platform 3 is configured to face the spectators, the lower right side panel (not shown) is held in an open state facing outward, and the right wing section 30 (upper right side panel and top right panel 22b) is held in an open state facing upward. In this open state, the right side 10 of the loading platform 3 is open to the outside, and the loading platform storage space 24 can be used as a stage with the right side 10 side open, and a curtain body 32 is attached to the front side of this stage.

[0025] For example, when the left side 8 of the loading platform 3 is the stage side, the loading platform 3 can be used as the entire stage, but as shown in FIG. 1, for example, a front overhang panel 34 may be installed in front of the opened left side lower panel 18a. Furthermore, for example, a left overhang panel 36 and / or a right overhang panel 38 may be installed on the left and / or right sides of the left side lower panel 18a and the front overhang panel 34. The front overhang panel 34 and the left and right overhang panels 36, 38 are configured to be supported on the ground by, for example, a plurality of leg members 40, and the opened left side lower panel 18a is configured to be supported by the front overhang panel 34 via, for example, a support plate (not shown) or the like, although not shown. Furthermore, a left rear panel 42 and / or a right rear panel 44 may be installed on the rear side of the left overhang panel 36 and / or the right overhang panel 38.

[0026] When configured in this manner, the stage on the left side of the loading platform 3 can be extended towards the audience, making the stage larger and bringing singers, performers, etc. closer to the audience, giving them a sense of presence.

[0027] The bed 3 of the stage car 2 (vehicle) is configured, for example, as shown in Fig. 2. Referring to Fig. 2, the bed 3 is equipped with a bed frame structure 26, which has a front left pillar member 46, a front right pillar member 48, a rear left pillar member 50, and a rear right pillar member 52 arranged at the four corners of the bed 3. The lower ends of the front left pillar member 46, the front right pillar member 48, the rear left pillar member 50, and the rear right pillar member 52 are connected by a left lower connecting member 54, a right lower connecting member 56, a front lower connecting member 58, and a rear lower connecting member 60, and a floor material 62 is attached to the floor surface defined by the left lower connecting member 54, the right lower connecting member 56, the front lower connecting member 58, and the rear lower connecting member 60.

[0028] A front upper connecting member 64 is connected between the upper ends of the front left pillar member 46 and the front right pillar member 48, and a rear upper connecting member 66 is connected between the upper ends of the rear left pillar member 50 and the rear right pillar member 52, and further, an intermediate connecting member 68 is connected between the longitudinal centers of the front upper connecting member 64 and the rear upper connecting member 66. The left wing portion 28 (left side upper panel 18b and top left panel 22a) and the right wing portion 30 (right side upper panel 22b and top right panel 22b) are attached to this intermediate connecting member 68 so as to be able to open and close freely.

[0029] In this stage car 2, the bed 3 is modified as follows. With reference to Figures 3 and 4, in this embodiment, a support frame structure 70 is provided inside the bed frame structure 26 of the bed 3, in other words, within the bed storage space 26. To explain further, a front left support 72, a front right support 74, a rear left support 76, and a rear right support 78 of the support frame structure 70 are provided inside the front right pillar member 46, the front right pillar member 48, the rear left pillar member 50, and the rear right pillar member 52 provided in the square portion of the bed 3, and these front left support 72, front right support 74, rear left support 76, and rear right support 78 are arranged in the square portion of the bed storage space 26.

[0030] In this embodiment, the lower ends of the front-left support 72, front-right support 74, rear-left support 76, and rear-right support 78 are fixed to the floor surface 62 of the loading platform 3 by fixing brackets (not shown) or the like, and the upper ends of the front-left support 72, front-right support 74, rear-left support 76, and rear-right support 78 are fixed to the upper ends of the front-left column member 46, front-right column member 48, rear-left column member 50, and rear-right column member 52 of the loading platform 3 via L-shaped brackets 71 (see Figure 4), for example, and the stage floor surface 80 is installed by raising a predetermined height (for example, approximately 10 to 20 cm) from the floor surface 62 of the loading platform 3 (see Figure 2).

[0031] In addition, a first connecting member 82 is connected between the upper ends of the front left support pillar 72 and the rear left support pillar 76, a second connecting member 84 is connected between the upper ends of the front right support pillar 74 and the rear right support pillar 78, a front connecting member 86 is connected between the upper ends of the front left support pillar 72 and the front right support pillar 76, and a rear connecting member 88 is connected between the upper ends of the rear left support pillar 76 and the rear right support pillar 78.

[0032] In this embodiment, since the left side of the loading platform 3 serves as a stage facing the audience, the curtain body 32 is attached to the first connecting member 82, and in connection with this, an attachment connecting member 90 is arranged below the second connecting member 84 so as to be parallel to it, and both ends of this attachment connecting member 90 are connected to the front right support column 74 and the rear right support column 78, and further, the second connecting member 84 and the attachment connecting member 90 are connected by a plurality of reinforcing members 92.

[0033] In this embodiment, since the left side of the loading platform 3 serves as a stage facing the audience, as will be described later, the curtain body 32 is attached to the first connecting member 82, etc., and the attachment connecting member 90 is positioned on the second connecting member 84 side; however, if the right side of the loading platform 3 serves as a stage facing the audience, the curtain body 32 is attached to the second connecting member 84, etc., and the attachment connecting member 90 is positioned on the first connecting member 82 side.

[0034] Next, the curtain body 32 for opening and closing the stage and the related configuration will be described with reference to Figures 5 to 7. In this embodiment, the curtain body 32 includes a first curtain 92 for opening and closing one side of the stage (the left side in Figures 1 and 5 to 7) and a second curtain 94 for opening and closing the other side of the stage (the right side in Figures 1 and 5 to 7), and the first and second curtains 92, 94 are configured to open to both sides from the center of the stage.

[0035] A first rail member 96 is provided in association with the first curtain 92, and this first rail member 96 extends longitudinally from near the end of the first connecting member 82 on the rear connecting member 88 side to near the longitudinal center of the front connecting member 86, and extends in an arc shape near the connection portion between the first connecting member 82 and the front connecting member 86, and is attached, for example, to the underside of the first connecting member 82 and the front connecting member 86.

[0036] In addition, a second rail member 98 is provided in association with the second curtain 94, and this second rail member 98 extends longitudinally from the end of the first connecting member 82 on the front connecting member side opposite the first rail member 96 to near the longitudinal center of the rear connecting member 88, and extends in an arc shape near the connection portion between the first connecting member 82 and the rear connecting member 88, and is attached, for example, to the underside of the first connecting member 82 and the rear connecting member 88.

[0037] In this embodiment, the first curtain 92 is located at the front of the stage (the audience side) and the second curtain 94 is located at the rear of the stage (the cargo bed storage space 24 side). In relation to this, as shown in FIG. 5, the first rail member 96 is attached to the audience side of the underside of the first connecting member 82, and the second rail member 98 is attached to the cargo bed storage space 24 side of the underside of the first connecting member 82, and the opposing open side ends of the first rail member 96 and the second rail member 98 overlap in a direction perpendicular to their longitudinal directions.

[0038] Alternatively, instead of this configuration, the first rail member 96 may be attached to the loading platform storage space 24 side of the first connecting member 82, and the second rail member 98 may be attached to the loading platform side of the first connecting member 82. In this case, the second curtain 94 would be located in front of the stage, and the first curtain 92 would be located behind the stage.

[0039] In this embodiment, a plurality of first moving support members (not shown) and a plurality of first moving members 100 are movably supported on the first rail member 96. The plurality of first moving support members are used to suspend the first curtain 92, and may be, for example, commercially available members.

[0040] The first movable support member, although not shown, comprises a support body to which a pair of rollers are rotatably attached, and a locking ring attached to the support body, and the upper end of the first curtain 92 is attached to this locking ring via a first curtain mounting member (see Figure 9(c)) (for example, a commercially available one can be used).

[0041] As described below, the multiple first moving members 100 are connected by first moving connecting members 102 (e.g., made of piano wire, etc.), and these first moving members 100 are supported movably on the first rail member 96 via the first moving connecting members 102, and move integrally along this first rail 96.

[0042] In addition, a plurality of second moving support members (not shown) and a plurality of second moving members 106 are movably supported on the second rail member 98. The plurality of second moving support members are used to suspend the second curtain 94, and although not shown, may be similar to the first moving support member, and the upper end of the second curtain 94 is attached to a locking ring attached to the support body via a second curtain attachment member (which may be similar to the first curtain attachment member). The plurality of second moving members 106 will be described later, but may be similar to the plurality of first moving members 100, and are connected by a second moving connecting member 108 (for example, made of a piano wire, etc.), and these second moving members 108 are supported by the second rail member 98 via the second moving connecting member 108, and are moved integrally along this second rail.

[0043] In this embodiment, the first and second curtains 92, 94 are controlled to open and close by an opening / closing drive mechanism 110. The illustrated opening / closing drive mechanism 110 includes an elongated base support member 112 and one opening / closing mechanism 113 attached to the base support member 112, and the base support member 112 is attached to the rear side of the first connection member 82. The opening / closing mechanism 113 further includes a pair of rotating members 114, 116 rotatably supported at a distance from each other in the longitudinal direction of the base support member 112, and an endless member 118 wound around the pair of rotating members 114, 116, the pair of rotating members 114, 116 being constituted by, for example, sprockets, and the endless member 118 being constituted by, for example, an endless chain. An electric motor 120 constituting a drive source is drivingly connected to one of the rotating members 114.

[0044] As configured in this manner, when the electric motor 120 rotates in a predetermined direction, one side run 118a (e.g., the lower run) of the endless member 118 moves in the direction indicated by arrow 122 (see FIG. 6), and the other side run 118b (e.g., the upper run) moves in the direction indicated by arrow 124, whereby the first and second curtains 92, 94 are moved in the opening direction toward both sides of the stage. When the electric motor 120 rotates in the direction opposite to the predetermined direction, the one side run 118a of the endless member 118 moves in the direction indicated by arrow 126 (see FIG. 7), and the other side run 118b moves in the direction indicated by arrow 128, whereby the first and second curtains 92, 94 are moved in the closing direction toward the center of the stage.

[0045] In this embodiment, four first moving members 100 are arranged at intervals in the opening / closing direction of the first curtain 92, the rearmost first moving member 100a of the four first moving members 100 is connected to a lower running portion 118a of an endless member 118 as described below, and the most forward first moving member 100c of the four first moving members 100 is attached to the upper end of the leading end of the first curtain 92 via a first curtain mounting member 104 (see FIG. 9(c)), and the remaining two first moving members 100b located between them are provided to prevent the first moving connecting member 102 from bending when the first curtain 92 is opened and closed. If the bending of the first moving connecting member 102 is not a problem, the intermediate first moving member 100b may be omitted, or one or three or more intermediate first moving members 100b may be provided depending on the degree of bending of the first moving connecting member 102.

[0046] Four second moving members 106 are disposed at intervals in the opening / closing direction of the second curtain 94, and the rearmost second moving member 106a of the four second moving members 106 is connected to an upper running portion 118b of the endless member 118 as described below, and the most forward second moving member 106c of the four second moving members 106 is attached to the upper end of the opening side end of the second curtain 94 via a second curtain attachment member (not shown), and the remaining two second moving members 10bb located between them are provided to prevent the second moving connecting member 108 from bending when the second curtain 94 is opened or closed. As with the first moving member 100 described above, if bending of the second moving connecting member 108 is not a problem, the intermediate second moving member 106b of the second moving member 106 may be omitted, or one or three or more intermediate second moving members 106b may be provided depending on the degree of bending of the second moving connecting member 108.

[0047] By configuring the first and second curtains 92, 94 as described above, the stage area opened and closed by the first and second curtains 92, 94 can be increased, and the stage space that can be effectively used can be increased. That is, on the first curtain 92 side, the rearmost first moving member 100a is connected to the lower running part 118a of the endless member 118, and on the second curtain 94 side, the rearmost second moving member 106a is connected to the upper running part 118b thereof. The first and second moving members 100a, 106a can be moved to the positions shown in FIG. 6 (i.e., the first moving member 100a or a part connected thereto) by the rotation of the electric motor 120. 7 (i.e., a position where the first moving member 100a or the first driving connecting member 158 is close to the other rotating member 116 and the second moving member 106a or the second driving connecting member 168 is close to one of the rotating members 114).

[0048] Although not shown, for example, a first detection switch (not shown) is provided corresponding to the position of the first moving member 100a shown in Fig. 6 (in other words, a position close to one rotating member 114), and a second detection switch (not shown) is provided corresponding to the position of the first moving member 100a shown in Fig. 7 (in other words, a position close to the other rotating member 116). With this configuration, the electric motor 120 can be controlled to stop driving when the first moving member 100a moves to the first detection switch, and by controlling the electric motor 120 in this manner, the state shown in Fig. 6 is achieved, that is, the first curtain 92 has moved to the left in Fig. 6 and the second curtain 94 has moved to the right in Fig. 6, that is, the first and second curtains 92, 94 are opened to allow the stage to be seen.

[0049] At this time, the three first moving members 100b, 100c are connected to the rearmost first moving member 100a via the first moving connecting member 102, and the opening side end of the first curtain 92 is attached to the foremost first moving member 100c via the first curtain mounting member 162, so that the first curtain 92 is moved to the open position shown by the solid line 92b in Fig. 5 and the dashed line 92 in Fig. 6. Also, the three second moving members 106b, 106c are connected to the rearmost second moving member 106a via the second moving connecting member 108, and the opening side end of the second curtain 94 is attached to the foremost second moving member 106c via a second curtain mounting member (not shown), so that the second curtain 94 is moved to the open position shown by the solid line 94b in Fig. 5 and the dashed line 94 in Fig. 6.

[0050] In such an open state, as shown in Figure 6, the opening side ends of the first and second curtains 92, 94 move widely to the outside of both of the pair of rotating members 114, 116 of the opening / closing drive mechanism 110, and therefore the opening length KO of the first and second curtains 92, 94 can be increased, thereby allowing the curtain body 32 (first and second curtains 92, 94) to be opened widely on both sides.

[0051] In addition, the electric motor 120 can be controlled to stop driving when the first moving member 100a moves to the second detection switch. By controlling the electric motor 120 in this manner, it is possible to achieve the state shown in Figure 7, i.e., the state in which the first curtain 92 moves to the right in Figure 7 and the second curtain 94 moves to the left in Figure 7, i.e., the state in which the first and second curtains 92, 94 are closed to hide the stage.

[0052] At this time, since the opening side end of first curtain 92 is attached to first moving member 100c on the most distal side via first curtain attachment member 162, this first curtain 92 is moved to the closed position shown by solid line 92a in Fig. 5 and dashed line 92 in Fig. 7. Also, since the opening side end of second curtain 94 is attached to second moving member 106c on the most distal side via a second curtain attachment member (not shown), this second curtain 94 is moved to the closed position shown by solid line 94a in Fig. 5 and dashed line 94 in Fig. 7.

[0053] In this closed state, as shown in Figures 5 and 7, the opening side ends of the first and second curtains 92, 94 overlap each other over a predetermined range KL in the fore-and-aft direction of the stage (i.e., in a direction perpendicular to the longitudinal direction of the first and second rail members 96, 98). Therefore, the audience cannot see the stage through the gaps between the first and second curtains 92, 94, thereby preventing light leakage from the stage, etc.

[0054] The overlap KL between the first and second curtains 92, 94 in the closed state is set to, for example, about 10 to 30 cm, but when the gap between the first and second curtains 92, 94 is not a concern, this overlap KL in the closed state may be eliminated. In this case, there is no need to overlap the first and second rail members 96, 98 in the front-to-back direction of the stage, and they can be constructed from a single long rail member.

[0055] In the above embodiment, the first and second detection switches (not shown) are provided in association with the first moving member 100a at the rear end side, but instead of this configuration, they may be provided in association with the second moving member 106a at the rear end side. In this case, the first detection switch (not shown) is provided in association with the position of the second moving member 106a shown in FIG. 6 (in other words, the position close to the other rotating member 116), and the second detection switch (not shown) is provided in association with the position of the second moving member 106a shown in FIG. 7 (in other words, the position close to one rotating member 114), and even with this configuration, the electric motor 120 can be controlled in the same manner as described above. Alternatively, instead of these configurations, for example, the first detection switch may be provided in association with the first moving member 100a at the rear end side (or the second moving member 106a at the rear end side), and the second detection switch may be provided in association with the second moving member 106a at the rear end side (or the first moving member 100c at the rear end side).

[0056] Next, the opening / closing drive mechanism 110 and a specific configuration related thereto will be described with reference to Fig. 8 and Fig. 9. In Fig. 8, first rail members 96, 98 are disposed at intervals on the underside of the first connecting member 82 in a direction perpendicular to the longitudinal direction (the left-right direction in Fig. 8, the front-rear direction of the stage), and the first and second rail members 96, 98 extend parallel to the longitudinal direction of the first connecting member 82. The first and second rail members 96, 98 include first and second rail bodies 132, 134 having a hollow rectangular cross section, and first and second support parts 136, 138 are provided at their lower parts, and first and second slits 140, 142 extending in the longitudinal direction of the first and second rail bodies 132, 134 are provided in the first and second support parts 136, 138.

[0057] 9, and are reciprocated along the first support portion 132 of the first rail member 96. The second moving member 106a on the rear end side has a similar configuration to the first moving member 100a on the rear end side, the second moving member 106b on the middle side has a similar configuration to the first moving member 100b on the middle side, and the second moving member 106c on the front end side has a similar configuration to the first moving member 100c on the front end side.

[0058] Next, the rearmost first moving member 100a will be described with reference to Fig. 8 and Fig. 9(a). This first moving member 100a has a first moving body 144, and a first upper roller means 146 is attached to the upper end of this first moving body 144, and a first lower roller means 148 is attached to the middle part. The upper end of the first moving body 144 of the first moving member 100a protrudes into the first rail body 132 through the first slit 140, and a pair of upper rollers 150 of the first upper roller means 146 are rotatably attached to this protruding end. In addition, a pair of lower rollers 152, 154 of the first lower roller means 148 are rotatably attached at an interval to the middle part located outside the first rail member 96 in the first moving body 144.

[0059] As configured in this manner, the first upper roller means 146 (a pair of upper rollers 150) of the first moving member 100a is supported for free movement on the first support portion 136 of the first rail member 96, and its first lower roller means 148 (two pairs of lower rollers 152, 154) is located below this first support portion 136, and the first upper roller means 146 and the first lower roller means 148 clamp and hold the first support portion 136 of the first rail member 96 in the vertical direction.

[0060] One end of a first driving coupling member 158 is attached to the lower end of the first moving member 100a by a mounting screw 156. The base support member 112 of the opening / closing drive mechanism 110 is disposed on the back side of the first connecting member 82, and this base support member 112 is fixed by screwing a fixing screw 162 into the first connecting member 82 through a plurality of cylindrical sleeves 160. The first driving coupling member 158 is configured to surround the first connecting member 82 and the base support member 112, and a coupling piece 164 attached to the other end is connected to a predetermined portion of one-side running portion 118a (for example, the lower running portion) of the endless member 118.

[0061] Because of this configuration, when the one-side running portion 118a (lower running portion) of the endless member 118 moves, the first moving member 100a moves integrally while being supported by the first support portion 136 of the first rail member 96 via the first driving connecting member 158.

[0062] The first moving member 100b located in the middle has a similar configuration to the first moving member 100a at the rearmost end side, as shown in Figure 9(b), but the first driving connecting member 158 etc. are not attached to the first moving body 144 of this first moving member 100b.

[0063] 9(c), the first moving member 100c located at the forefront has a similar configuration to the first moving member 100a at the rearmost end, but a first curtain attachment member 162 for attaching the first curtain 92 is attached instead of the first driving connecting member 158. Therefore, when the first moving member 100c moves, the opening side end of the first curtain 86 moves integrally with it via the first curtain attachment member 162.

[0064] In this embodiment, the first movable connecting member 102 (e.g., a piano wire) penetrates and connects the rearmost first movable member 100a, the middle first movable member 100b, and the tipmost first movable member 100c, and when the rearmost first movable member 100a is moved, the middle first connecting member 100b and the tipmost first movable member 100c are moved integrally via the first movable connecting member 102.

[0065] In addition, the multiple second moving members 106 (the rearmost second moving member 106a, the intermediate second moving member 106b, and the most distal second moving member 102c) have the same configuration as the multiple first moving members 100 (the rearmost first moving member 100a, the intermediate first moving member 100b, and the most distal first moving member 100c), and for the rearmost second moving member 106a, as shown in FIG. 8, a second drive connecting member 168 is attached to the second moving body 166 by an attachment screw 156, and a second connecting piece 170 attached to the tip of the second drive connecting member 168 is connected to a predetermined portion of the other side running portion 118b (e.g., the upper running portion) of the endless member 118.

[0066] Although not shown, for the second moving member 106c on the most front side, a second curtain mounting member is attached to the second moving body, and the opening side end of the second curtain 94 is attached to the second curtain mounting member. Furthermore, a second moving connecting member 108 (e.g., a piano wire) (see Figs. 6 and 7) penetrates through the rearmost second moving member 106a, the intermediate second moving member 106b, and the most front second moving member 106c, and is connected and fixed.

[0067] Because it is configured in this manner, when the other side running portion 118b (upper running portion) of the endless member 118 moves, the second moving member 106a on the rear end side moves integrally via the second driving connecting member 168, and as the second moving member 106a on the rear end side moves, the middle second moving member 106b and the second moving member 106c on the front end side move integrally via the second moving connecting member 108, and further the opening side end of the second curtain 94 moves via the second curtain mounting member (zU not shown).

[0068] In this embodiment, the first driving coupling member 158 is configured to surround the first connection member 82 and the opening / closing drive mechanism 110 as shown in Fig. 8, so that the rearmost first moving member 100a is easily elastically deformed when it moves along the first rail member 96, and when elastic deformation occurs, it becomes difficult for the first moving member 100a to move smoothly. For this reason, it is preferable to configure the first driving coupling member 158 as shown in Fig. 10.

[0069] 10, a support unit 172 is provided on the upper surface of the upper wall portion 158a (see also FIG. 8) of the first driving connection member 158. The support unit 172 includes a unit body 174, which is attached to the upper wall portion 158a of the first driving connection member 158 by a mounting screw 176. A first roller body 176 is attached to one end of the unit body 174, and a pair of first support rollers 178 are rotatably attached to the first roller body 176. A second roller body 180 is attached to the other end of the unit body 174, and a pair of second support rollers 182 are rotatably attached to the second roller body 180.

[0070] As the first driving connection member 158 moves, the first and second support rollers 178, 182 of the support unit 172 move in the longitudinal direction while contacting the upper surface of the first connecting member 82. This contact movement suppresses elastic deformation of the first driving connection member 158, allowing it to move smoothly.

[0071] In this embodiment, although not shown, a plurality of first and second movable support members are disposed between a plurality of first and second movable members 100, 106, and these first and second movable support members are movably supported by first and second support portions 136, 138 of first and second rail members 96, 98. The upper ends of the first and second curtains 92, 94 are attached to these first and second movable support members via the above-mentioned first and second curtain attachment members.

[0072] In addition, a plurality of first and second movable support members are arranged on the rear end side of the first and second rail members 96, 98, and these first and second movable support members are also supported for free movement by the first and second support portions 136, 138 of the first and second rail members 96, 98, and the upper ends of the first and second curtains 92, 94 are also attached to these first and second movable support members via the above-mentioned first and second curtain mounting members.

[0073] In this embodiment, one or more lighting devices (not shown) can be attached to the mounting connection member 90 provided between the front right support column 74 and the rear right support column 78. Specifically, a mounting rail (not shown) is attached to the underside of the mounting connection member 90, and a lighting device for illuminating the stage is attached to this mounting rail, in which case the mounting position of the lighting device can be adjusted by sliding it along the mounting rail. Note that the mounting connection member 90 may be omitted, and a mounting rail may be attached to the second connection member 84, and the lighting device may be attached to this mounting rail so that its position can be freely adjusted.

[0074] This embodiment is further configured as follows: As shown in Fig. 1, an upper curtain 186 is attached to the front side of the first connecting member 82 (see Fig. 3), and this upper curtain 186 is provided from one end to the other end of the first connecting member 82. By providing the upper curtain 186 in this manner, the upper side of the stage space is restricted, and the stage space is divided together with the first and second curtains 92, 94, so that the stage effect can be improved when the curtain body 32 is opened.

[0075] In this stage car 2, the curtain body 32 is opened and closed as follows. Mainly referring to Figures 5 to 8, when the curtain body 32 (first and second curtains 92, 94) is opened (in other words, the stage is opened), as shown in Figure 6, the electric motor 120 of the opening / closing drive mechanism 110 is rotated in a predetermined direction to move the endless member 118 in the opening direction, that is, to move one side running section 118a (lower running section) in the direction indicated by arrow 122 and the other side running section 118b (upper running section) in the direction indicated by arrow 124.

[0076] When one-side run 118a (lower run) of endless member 118 moves in the direction indicated by arrow 122, the movement is transmitted to first moving member 100a on the rearmost side via first drive connecting member 158, and first moving member 100a moves in the opening direction together with one-side run 118a. The movement of first moving member 100a on the rearmost side is transmitted to first moving member 100c on the most leading side via first moving member 100b in the middle and first moving connecting member 102, and is further transmitted to the opening side end of first curtain 92 via first curtain mounting member 156, and in this way the opening side end of first curtain 92 moves in the opening direction.

[0077] Furthermore, when the other-side running section 118b (upper running section) of the endless member 118 moves in the direction indicated by the arrow 124, the movement is transmitted to the rearmost second moving member 106a via the second driving connecting member 168, and the second moving member 106a moves in the opening direction together with the other-side running section 118b. The movement of the rearmost second moving member 106a is transmitted to the foremost second moving member 106c via the intermediate second moving member 106b and the second moving connecting member 108, and is further transmitted to the opening side end of the second curtain 94 via the second curtain mounting member (not shown), and in this way the opening side end of the second curtain 94 moves in the opening direction.

[0078] Then, when the endless member 118 moves to the position shown in Fig. 6, for example when the first detection switch (not shown) detects the rearmost first moving member 100a (in other words, the first moving connecting member moves to the vicinity of one of the rotating members 114), the rotation of the electric motor 120 stops and the state shown in Fig. 6 is maintained. In this state, the first curtain 92 moves to the position shown by the solid line 92b in Fig. 5 and the dashed line in Fig. 6 via the multiple first moving members 100 (the rearmost first moving member 100a, the intermediate first moving member 100b and the leadingmost first moving member 100c) and the first moving connecting member 102. Furthermore, the second curtain 94 moves to a position shown by the solid line 94b in Fig. 5 and the dashed line in Fig. 6 via the multiple second moving members 106 (the rearmost second moving member 106a, the intermediate first moving member 106b, and the frontmost first moving member 106c) and the second moving connecting member 108. Therefore, the curtain body 32 (the first rearmost second curtains 92, 94) opens wide on both sides, making the stage appear larger to the audience.

[0079] Furthermore, when closing the curtain body 32 (first and second curtains 92, 94) (in other words, closing the stage), as shown in FIG. 7, the electric motor 120 of the opening / closing drive mechanism 110 is rotated in the direction opposite to the specified direction to move the endless member 118 in the closing direction, i.e., to move one side running portion 118a (lower running portion) in the direction indicated by arrow 126 and the other side running portion 118b (upper running portion) in the direction indicated by arrow 128.

[0080] When one-side running portion 118a (lower running portion) of endless member 118 moves in the direction indicated by arrow 126, as described above, the movement is transmitted to the rearmost first moving member 100a via the first driving connecting member 158, and the movement of this first moving member 100a is transmitted to the frontmost first moving member 100c via the intermediate first moving member 100b and the first moving connecting member 102, and further the opening side end of first curtain 92 is moved in the closing direction via the first curtain mounting member 156.

[0081] Furthermore, when the other side running portion 118b (upper running portion) of the endless member 118 moves in the direction indicated by the arrow 128, as described above, that movement is transmitted to the second moving member 106a on the rear end side via the second driving connecting member 168, and the movement of this second moving member 106a is transmitted to the second moving member 106c on the front end side via the intermediate second moving member 106b and the second moving connecting member 108, and further the opening side end of the second curtain 94 is moved in the closing direction via the second curtain mounting member (not shown).

[0082] Then, when the endless member 118 moves to the position shown in Fig. 7, for example when the second detection switch (not shown) detects the rearmost first moving member 100a (in other words, the first moving connecting member moves to the vicinity of one of the rotating members 114), the rotation of the electric motor 120 stops and the state shown in Fig. 7 is maintained. In this state, the first curtain 92 moves to the position shown by the solid line 92a in Fig. 5 and the dashed line in Fig. 7 via the multiple first moving members 100 (the rearmost first moving member 100a, the intermediate first moving member 100b and the leadingmost first moving member 100c) and the first moving connecting member 102. Furthermore, the second curtain 94 moves to a position indicated by the solid line 94a in Fig. 5 and the dashed line in Fig. 7 via the multiple second moving members 106 (the rearmost second moving member 106a, the intermediate first moving member 106b, and the frontmost first moving member 106c) and the second moving connecting member 108. Therefore, the curtain body 32 (the first and second curtains 92, 94) closes with their opening side ends overlapping, making it impossible for the audience to see the stage.

[0083] Although one embodiment of the stage car according to the present invention has been described above, the present invention is not limited to this embodiment, and various changes and modifications are possible without departing from the scope of the present invention.

[0084] For example, in the above-described embodiment, the first and second curtains 92, 94 are controlled to open and close by one opening / closing mechanism 113 of the opening / closing drive mechanism 110, but this opening / closing drive mechanism may be configured with two opening / closing mechanisms, i.e., a first opening / closing mechanism (not shown) that moves the first curtain 92 to open and close, and a second opening / closing mechanism (not shown) that moves the second curtain 94 to open and close. For example, although not shown, the first opening / closing mechanism includes a pair of first rotating members arranged at a distance from one side of the first connecting member 54, a first endless member wound between the pair of first rotating members, and a first drive source for reciprocating the first endless member, and a part of the first curtain 92, for example, its opening side end, is connected to the upper running portion (or the lower running portion) of the first endless member, and the first curtain 92 is controlled to open and close by the movement of the first endless member. In addition, the second opening / closing mechanism, although not shown, includes a pair of second rotating members arranged at a distance on the other side of the first connecting member 54, a second endless member wrapped between the pair of second rotating members, and a second drive source for reciprocating the second endless member, and a part of the second curtain 94, for example its opening side end, is connected to the upper running portion (or lower running portion) of the second endless member, and the second curtain 94 is opened and closed by the movement of the first endless member.

[0085] Also, for example, in the above-described embodiment, the first rail member 96 is provided in the longitudinal direction from near the end of the first connecting member 82 on the rear connecting member 88 side to approximately the longitudinal center of the front connecting member 86, but it may be arranged so as to end from the end of the first connecting member 86 on the rear connecting member 86 side to the end of the front connecting member 86 side. Similarly to the first rail member 96, the second rail member 98 is also provided in the longitudinal direction from near the end of the first connecting member 82 on the front connecting member 86 side to approximately the longitudinal center of the rear connecting member 88, but it may be arranged so as to end from the end of the first connecting member 82 on the front connecting member 86 side to the end of the rear connecting member 88.

[0086] Furthermore, for example, in the above-mentioned embodiment, a space exists between the floor surface of the loading platform 3 and the floor surface (stage floor surface 80) of the support frame structure 70, but this space may be used as a storage space. For example, the front overhang panel 34, the left overhang panel 36, the right overhang panel 38, the left rear panel 42, the right rear panel 44, the leg member 40, etc. may be stored in this storage space. Alternatively, the front overhang panel 34 may be slidably mounted in this storage space between a stage position where it is overhanging forward and a storage position where it is stored by retreating from this stage position. In this case, it is preferable that, in the stage position, the front overhang panel 34 is supported by the leg member 40 so that it is slightly raised and is flush with the left side lower panel 18a. [Explanation of symbols]

[0087] 2 Stage Car 24 Cargo storage space (stage) 26 Cargo bed frame structure 32 Curtain body 70 Supporting frame structure 72,74,76,78 Post 80 Stage floor 82 First connecting member 92 First Curtain 94 Second Curtain 96 First rail member 98 Second rail member 100, 100a, 100b, 100c First moving member 102 Second movable connecting member 106, 106a, 106b, 106c Second moving member 108 Second movable connecting member 110 Opening and closing drive mechanism 113 Opening and closing mechanism 114,116 Rotating members 118 Endless member 136 1st support part 138 Second support part 158 First driving connection member 168 Second driving connection member

Claims

1. A stage car comprising a front panel, a rear panel, a left side panel, a right side panel and a top panel which cover the front, rear, left side, right side and top of a vehicle bed, the front panel, the rear panel, the left side panel, the right side panel and the top panel defining a bed storage space, and at least the left side panel or the right side panel being opened to use the bed storage space as a stage, a support frame structure is provided within the loading platform storage space, the support frame structure includes a front-left support pillar, a front-right support pillar, a rear-left support pillar and a rear-right support pillar arranged at four corners of the loading platform storage space, a first connection member is connected between upper ends of the front-left support pillar and the rear-left support pillar or between upper ends of the front-right support pillar and the rear-right support pillar, a front connection member is connected between upper ends of the front-left support pillar and the front-right support pillar, and a rear connection member is connected between upper ends of the rear-left support pillar and the rear-right support pillar, A stage car characterized in that a first rail member is provided on one side of the first connecting member toward the front connecting member, and a second rail member is provided on the other side of the first connecting member toward the rear connecting member, a first curtain is attached to the first rail member so as to be freely opened and closed, and a second curtain is attached to the second rail member so as to be freely opened and closed.

2. The stage car described in claim 1, characterized in that the first and second rail members are attached to the first connecting member in parallel in a vertical direction perpendicular to its longitudinal direction, the opposing open side ends of the first and second rail members overlap each other over a predetermined range in the vertical direction, and when the first and second curtain members are in a closed state, the open side ends of the first and second curtain members overlap in the vertical direction.

3. The stage car described in claim 2, further comprising an opening / closing drive mechanism for moving the first and second curtain members in an opening / closing direction, the opening / closing drive mechanism comprising a base support member attached to the first connecting member and an opening / closing mechanism for simultaneously opening and closing the first and second curtains, the opening / closing mechanism including a pair of rotating members arranged at a distance from each other on the base support member, an endless member wrapped between the pair of rotating members, and a drive source for reciprocating the endless member, wherein a portion of the first curtain is opened and closed in connection with the movement of one side running portion or the other side running portion of the endless member, and a portion of the second curtain is opened and closed in connection with the movement of the other side running portion or the one side running portion of the endless member.

4. 4. The stage car according to claim 3, wherein a plurality of first moving members are disposed over a predetermined range in the opening direction of the first curtain, the plurality of first moving members are supported on the first rail while being connected via a first moving connecting member, a leading edge of the plurality of first moving members is attached to an upper end of the first curtain and a rearmost first moving member is connected to the one-side running portion or the other-side running portion of the endless member of the opening / closing drive mechanism, and a plurality of second moving members are disposed over a predetermined range in the opening direction of the second curtain, the plurality of second moving members are supported on the second rail while being connected via a second moving connecting member, a leading edge of the plurality of second moving members is attached to an upper end of the second curtain and a rearmost second moving member is connected to the other-side running portion or the one-side running portion of the endless member of the opening / closing drive mechanism.

5. 5. The stage car according to claim 4, wherein each of the plurality of first moving members has a first moving body that moves along a first support portion of the first rail member, and a first upper roller means and a first lower roller means that clamp the first support portion of the first rail member from above and below, wherein the first moving body of the first moving member at the forefront is attached to an upper end of the first curtain via a first curtain mounting member, the first moving body of the first moving member at the rearmost side is connected to the one-side running portion or the other-side running portion of the endless member of the opening / closing drive mechanism via a first drive connecting member, and the second moving body of the second moving member at the foremost side is attached to an upper end of the second curtain via a second curtain mounting member, and the second moving body of the second moving member at the rearmost side is connected to the other-side running portion or the one-side running portion of the endless member of the opening / closing drive mechanism via a second drive connecting member.

6. 4. The stage car according to claim 3, further comprising an opening / closing drive mechanism for moving the first and second curtain members in an opening / closing direction, the opening / closing drive mechanism including a first opening / closing mechanism for opening and closing the first curtain and a second opening / closing mechanism for opening and closing the second curtain, the first opening / closing mechanism including a pair of first rotating members arranged at a distance on one side of the first connecting member, a first endless member wound between the pair of first rotating members, and a first drive source for reciprocating the first endless member, a portion of the first curtain being associated and connected to the first endless member, and the second opening / closing mechanism including a pair of second rotating members arranged at a distance on the other side of the first connecting member, a second endless member wound between the pair of second rotating members, and a second drive source for reciprocating the second endless member, a portion of the second curtain being associated and connected to the second endless member.

7. A stage car as described in claim 1, characterized in that a second connecting member and / or an attachment connecting member is connected between the upper ends of the front right support and the rear right support or between the upper ends of the front left support and the rear left support, an attachment rail is attached to the second connecting member and / or the attachment connecting member, and a lighting device for illuminating the stage is attached to the attachment rail so that its position can be freely adjusted.

Images