JP6069159B2 - Mobile overpass - Google Patents

Description

  The present invention relates to a mobile transit bridge.

  In multipurpose halls used for theatre and concerts, and in studios of television stations, for example, as disclosed in Patent Documents 1 and 2, lighting equipment for illuminating performers and creating a spotlight, Some are attached to a lighting bridge extending in the direction of the frontage of the stage, and this lighting bridge is suspended by a baton. The lighting bridge is provided with a working space where an operator can get in and adjust the angle of the lighting fixture.

  In addition, at the upper part of the sleeve of the stage, a gallery is called, and a corridor for passing the worker extending in the depth direction of the stage is suspended by a hanging material. Work from this gallery to the lighting bridge. In the gallery, handrails are provided in consideration of the safety of workers passing through the gallery. Therefore, when the hanging position of the lighting bridge is fixed, the boarding position for going back and forth between the gallery and the lighting bridge does not change. Therefore, a part of the handrail corresponding to this part is opened and closed, and the gallery and the lighting bridge are connected. It is common to allow travel.

  However, when the lighting bridge is changed to a different baton and the hanging position of the lighting bridge is changed according to the performance, the boarding position changes depending on the hanging position of the lighting bridge. However, it is difficult to do so. Therefore, in the multipurpose hall where the lighting bridge is replaced, a moving bridge is used in which the moving bridge is moved so that the operator can move over the handrail of the gallery and move to the lighting bridge.

Japanese Patent Laid-Open No. 9-265804 JP 2008-146864 A

  For example, as shown in FIG. 5, the conventional mobile bridge has a carriage 8 that runs in a gallery, a plurality of columns 28 that stand on the vehicle 8, a floor plate 3 supported by these columns 28, and this floor plate. 3 and a staircase 5 for ascending from the gallery to the floor plate 3, and the erection plate 9 extends beyond the gallery handrail g1 to the lighting bridge side. Since this erection plate 9 protrudes from the wheel 80 of the carriage 8, that is, is provided at an overhanging position, if the operator gets on the erection plate 9 without fixing the movable bridge, there is a risk of falling. There is.

  For this reason, in the movable bridge shown in FIG. 5, the floor g2 of the gallery is used as a grating, and the bracket 81 attached to the carriage 8 is hooked on the grating to prevent the wheel 80 from being lifted. The gallery handrail g1 is sandwiched between two pairs of sandwiching pieces 29a and 29b, and a stopper 29c is inserted from one of the paired sandwiching pieces 29a and 29b to the other to prevent the support column 28 from being separated from the handrail g1. The fall of the bridge is prevented.

  However, in the above-mentioned mobile bridge, fixing work for preventing the mobile bridge from overturning is essential, and the work load is large. Moreover, although the fall prevention of this mobile transfer bridge is implement | achieved by an operator's fixed work, it is desired to make it a structure which does not depend on an operator and does not fall over a mobile transfer bridge. Moreover, in the above-mentioned movable bridge, the floor g2 of the gallery must be configured such that the bracket 81 can be hooked, such as grating, and the floor structure of the gallery is limited. Furthermore, in the above-mentioned movable bridge, it is designed to move inside the suspension material that supports the gallery. Depending on the position of the lighting bridge, the suspension plate may be in the way and the installation plate cannot be extended to the lighting bridge. There is.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a movable crossover bridge that is structurally prevented from overturning and reduces the work load, and does not limit the floor structure of the gallery and avoids interference between the construction plate and the suspension material. Is to provide.

  Means for solving the above-mentioned problem is to move a gallery extending in the depth direction to the sleeve of the stage, and to move from the gallery to the lighting bridge extending over the handrail of the gallery and extending in the frontage direction of the stage. One or more traveling means for traveling on one or more rails that are disposed along the gallery and extend in the horizontal direction while being disposed between the suspension material that supports the gallery and the handrail in the movable bridge. A support member attached to the traveling means, a floor plate supported by the support member, a construction plate connected to the floor plate and extending toward the lighting bridge, and a staircase connected to the floor plate and going up from the gallery to the floor plate It is to provide.

  According to the mobile bridge of the present invention, it is possible to structurally prevent overturning and reduce the work load, and not to limit the floor structure of the gallery and avoid interference between the erection plate and the suspension material. .

It is the front view which showed the use condition of the mobile transfer bridge which concerns on one embodiment of this invention. It is the side view which showed the use condition of the mobile type transit bridge which concerns on one embodiment of this invention. It is the figure which expanded and showed the traveling means part which drive | works the upper rail in FIG. It is the figure which expanded and showed the traveling means part which drive | works the lower rail in FIG. (A) is the figure which looked at the illumination bridge side half of the conventional mobile transfer bridge from the illumination bridge side. (B) is the figure which looked at the gallery side half of the conventional mobile transfer bridge from the gallery side.

  A mobile bridge according to an embodiment of the present invention will be described below with reference to the drawings. The same reference numerals given throughout the several drawings indicate the same or corresponding parts.

  As shown in FIGS. 1 and 2, the mobile bridge A according to the present embodiment moves the gallery G extending in the depth direction to the sleeve of the stage, and gets over the handrail g1 of the gallery G from the gallery G. In order to move to the lighting bridge B extending in the frontage direction of the stage. The movable bridge A is arranged between the suspension material P that supports the gallery G and the handrail g1 and includes one or more rails R1 and R2 that are arranged along the gallery G and extend in the horizontal direction. One or more traveling means 1A, 1B that travel, a supporting member 2 attached to the traveling means 1A, 1B, a floor plate 3 supported by the supporting member 2, and a floor plate 3 connected to the lighting bridge B side. An extending construction plate 4 and a stair 5 connected to the floor plate 3 and going up from the gallery G to the floor plate 3 are provided.

  In addition, the mobile bridge A is used in a multi-purpose hall where theater and concerts are held in this embodiment. Since the structure of this multipurpose hall is well known, it is not shown in detail, but it has a audience seat and a stage where performers perform their performances. The width of the stage that can be seen from the audience seats is the width of the stage (left and right in FIG. 1), and the depth seen from the audience seats (left and right in FIG. 2) is the depth of the stage. The space in is the sleeve of the stage. The mobile bridge A according to the present invention may be used for other than the multipurpose hall, and may be used for a studio of a television station, for example.

  In the structure arranged on the upper side of the stage, a plurality of batons 6 extending in the direction of the front of the stage and arranged side by side in the depth direction are suspended substantially horizontally by the wire rope W. Each baton 6 can be moved up and down, and holds a lighting fixture L, a curtain, a book split, and the like. Further, a plurality of suspension materials P extending in the vertical direction are suspended from the sleeves of the stage in the depth direction, and the gallery G is supported by the suspension materials P. That is, the gallery G extends in the depth direction on the sleeves of the stage, and is used as a corridor for workers to pass.

  In general, the gallery G is provided at a height of 9 to 10 m from the floor of the stage, and the gallery G is provided with a rail-shaped handrail g1 for preventing falling in consideration of the safety of the operator. Are provided along the longitudinal direction. The suspension material P extends inward from the handrail g1 of the gallery G, suspends the floor g2 of the gallery G, and the movable bridge A can move between the suspension material P and the handrail g1 in the gallery G. It is like that.

  In the present embodiment, the lighting bridge B is suspended by using two batons 6 (only one batton 6 is shown and the other batton 6 is not shown). A plurality of lighting fixtures L are attached. The lighting bridge B includes a floor board b1 extending along the baton 6, that is, extending in the frontage direction of the stage, and a rail-like handrail b2 standing on both sides along the length of the floor board b1. And while a worker passes on the floor board b1, the angle of the lighting fixture L can be adjusted on this floor board b1. Further, the lighting bridge B of the present embodiment can be replaced with a different baton 6 (not shown), whereby the position of the lighting bridge B can be moved in front of or behind the stage.

  Hereinafter, each configuration of the movable bridge A that is arranged between the handrail g1 of the gallery G and the suspension material P and is used by the operator to enter the lighting bridge B from the gallery G will be described in detail. The movable bridge A includes two traveling means 1A and 1B that travel on two upper and lower rails R1 and R2 arranged along the gallery G, and a support member 2 to which these traveling means 1A and 1B are attached. A floor plate 3 connected to the support member 2, a construction plate 4 slidably connected to the lighting bridge B side of the floor plate 3, and steps 5 and 5 connected to both sides of the floor plate 3 in the traveling direction. It is suspended in the air. Moreover, although not shown in figure, the mobile transfer bridge A which concerns on this Embodiment is provided with the stopper which controls the movement of the mobile transfer bridge A, and can stop the mobile transfer bridge A in arbitrary positions. It is like that.

  The two rails R1, R2 are both fixed to the handrail g1 side of the suspension material P. In the present embodiment, as shown in FIG. 3, the upper rail R1 is made of H steel (H-shaped steel), and extends horizontally from the center piece r10 extending in the horizontal direction and from the left and right ends of the center piece r10 in FIG. And a pair of left and right flanges r11, r12 extending in the shape of H. The left flange r11 in FIG.

  Further, the traveling means 1A that travels on the upper rail R1 includes a pedestal 10 that is disposed on the right side of the rail R1 in FIG. 3 and extends in the traveling direction, and that extends horizontally from both ends of the traveling direction of the pedestal 10 toward the rail R1. A pair of horizontal shafts 11 (in FIG. 3, only one horizontal shaft 11 is shown and the other horizontal shaft 11 is not shown), and the upper surface of the central piece r10 is rotatably held by these horizontal shafts 11 And a pair of wheels 12 (in FIG. 3, only one wheel 12 is shown and the other wheel 12 is not shown). The pedestal 10 is connected to the support member 2. Further, when the mobile bridge A travels, the wheel 12 rotates vertically around an axis (horizontal axis 11) along the horizontal direction while being prevented from being removed by the flanges r11 and r12.

  On the other hand, as shown in FIG. 4, the lower rail R2 is composed of a sea channel (grooved steel) and extends in the horizontal direction in the present embodiment, and a central piece r20 of the central piece r20 in FIG. It has a pair of flange pieces r21 and r22 extending downward from both ends and has a U-shaped cross section. The central piece r20 is fixed to the suspension material P via the bracket p1, and the left flange piece r21 in FIG.

  The traveling means 1B that travels on the lower rail R2 includes a pedestal 13 that is disposed on the lower side of the rail R2 and extends in the traveling direction, and a pair of vertically extending from both ends of the traveling direction of the pedestal 13 to the upper side. A vertical axis 14 (only one vertical axis 14 is shown in FIG. 4 and the other vertical axis 14 is not shown), and is held rotatably on the vertical axis 14 to the left flange piece r21 in FIG. A pair of wheels 15 (in FIG. 4, only one wheel 15 is shown and the other wheel 15 is not shown) is provided. The pedestal 13 is connected to the support member 2 via a connecting piece 16. Further, when the mobile bridge A travels, the wheel 15 rotates laterally around an axis (vertical axis 14) along the vertical direction while being prevented from being removed by the flange pieces r21 and r22.

  Returning back, as shown in FIGS. 1 and 2, the support member 2 to which the traveling means 1A and 1B are attached includes the one-side support 20 disposed on the suspension material P side and the other disposed on the handrail g1 side. A side support 21, a plurality of cross members 22 constructed between the one side support 20 and the other side support 21, and a floor plate 3 fixed between the one side support 20 and the other side support 21. And a handrail 24 that prevents the operator from falling off the floor board 3.

  The one side support 20 is formed in a rectangular frame shape, the pedestal 10 of the traveling means 1A is connected to the upper part, the connecting piece 16 of the traveling means 1B is connected to the lower part, and the handrail 24 is attached to the inner side. It has been. On the other hand, as shown in FIG. 2, the other side support 21 is formed in a gate shape with a pair of legs 21a and 21b, and the space between the legs 21a and 21b from the floor board 3 to the lighting bridge B It becomes the gateway to move to. In FIG. 2, a handrail 24 can be seen between the pair of leg portions 21 a and 21 a, and this handrail 24 is attached to the one side support 20. Further, a space between the one side support 20 and the other side support 21 serves as an entrance for going up from the stairs 5 to the floor board 3. For this reason, the cross member 22 is provided at a high position in consideration of not interfering with an operator passing through the entrance.

  In the present embodiment, the floor board 3 is formed in a rectangular plate shape and is disposed at a position higher than the handrail g1 of the gallery G. And the construction board 4 is attached to the handrail g1 side edge part of the floor board 3 so that sliding is possible, and the stairs 5 is attached to the both sides of the advancing direction. In this embodiment, since the gallery G and the lighting bridge B are separated from each other, the erection plate 4 is slidably connected to be opened and closed, and a foldable handrail 40 is provided on both sides of the erection plate 4. It has been. A wire 41 is attached to the free end of the erection plate 4. When a handle (not shown) attached to the support member 2 is rotated, the wire 41 is wound or unwound so that the erection plate 4 is Can be opened and closed. The erection plate 4 may not be openable and may be fixed to the floor plate 3 while extending toward the lighting bridge B.

  Subsequently, each of the stairs 5 and 5 is composed of a pair of side plates 50 and 51 and a plurality of treads 52 disposed with a step between the side plates 50 and 51, and the support member is interposed via the floor plate 3. 2 so that the lower end does not rub the floor g2 of the gallery G. In the present embodiment, the stairs 5 are not provided with handrails, but handrails may be provided. Moreover, although the stairs 5 are provided on both sides of the traveling direction of the floor board 3, the stairs 5 may be provided only on one side.

  Hereinafter, the operation of the mobile transit bridge A according to the present embodiment will be described.

  When the operator pushes the moving bridge A, the wheel 12 rotates vertically, the wheel 15 rotates horizontally, and the moving bridge A moves along the rails R1 and R2. At this time, since the load of the movable bridge A is applied downward in FIG. 1 to the traveling means 1A traveling on the upper rail R1, the wheels 12 of the traveling means 1A traveling on this rail R1 are connected to the rail R1. It rotates while being pressed against the central piece r10. On the other hand, since the load on the movable bridge A is applied to the traveling means 1B traveling on the lower rail R2 in the left direction in FIG. 1, the wheels 15 of the traveling means 1B traveling on the rail R2 are connected to the rail R2. It rotates while being pressed against the flange piece r21. Further, the wheel 12 of the traveling means 1A is prevented from being removed by the pair of flanges r11, r12, and the wheel 15 of the traveling means 1B is prevented from being removed by the pair of flange pieces r21, r22. The bridge A is structured so as not to fall down.

  Moreover, since the movable bridge A travels between the suspension material P that supports the gallery G and the handrail g1 of the gallery G, the gallery G is moved while the construction plate 4 is extended toward the lighting bridge B. Even so, the construction plate 4 and the suspension material P do not interfere with each other. Therefore, the suspension material P does not hinder the movement and installation of the movable bridge A.

  Hereinafter, the operation and effect of the mobile transfer bridge A according to the present embodiment will be described.

  In the present embodiment, the rails R1 and R2 are fixed to the suspension material P, and are arranged in two vertically, and the traveling means 1A traveling on the upper rail R1 rotates around an axis along the horizontal direction. A traveling means 1B that includes wheels 12 and travels on the lower rail R2 includes wheels 15 that rotate about an axis along the vertical direction.

  In the present embodiment, a support member 2 is connected to the right side in FIG. 1 of each traveling means 1A, 1B, and the traveling means 1A in which the load of the movable bridge A travels on the upper rail 1A is shown in FIG. 1 is applied to the traveling means 1B traveling on the lower rail 1B. For this reason, according to the above configuration, a load can be applied substantially perpendicularly to the ground contact surfaces of the wheels 12 and 15, so that the traveling means 1A and 1B travel while the wheels 12 and 15 are installed on the rails R1 and R2. Can be made. The number, arrangement, and configuration of the rails R1, R2 and the traveling means 1A, 1B are not limited to the above, and can be changed as appropriate.

  In the present embodiment, the movable bridge A is disposed between the suspension material P that supports the gallery G and the handrail g1, and is disposed along the gallery G and extends in the horizontal direction. , R2 and one or more traveling means 1A, 1B, a supporting member 2 attached to the traveling means 1A, 1B, a floor plate 3 supported by the supporting member 2, and an illumination bridge B connected to the floor plate 3. A erection plate 4 extending to the side, and a staircase 5 connected to the floor plate 3 and going up from the gallery G to the floor plate 3 are provided.

  According to the above configuration, since the movable bridge A is suspended from the rails R1 and R2, there is no structural fear of falling down, and the bracket 81 is attached to the floor g2 of the gallery G as shown in FIG. There is no need to perform fixing work for preventing overturning, such as hooking or pinching the handrail g1 between the holding pieces 29a and 29b. For this reason, an operator's workload can be reduced. In addition, the mobile bridge A can be prevented from falling over structurally without depending on the operator, and thus higher safety can be ensured. Moreover, according to the said structure, since it is not necessary to hook the metal fitting 81 on the floor g2 of the gallery G, the floor structure of the gallery G is not limited.

  Furthermore, according to the said structure, since the movable bridge A moves between the suspension material P which supports the gallery G, and the handrail g1, it can avoid the interference with the construction board 4 and the suspension material P, and is suspended. The material P does not interfere with the movement or installation of the mobile bridge A.

  Although preferred embodiments of the present invention have been described in detail above, it should be understood that modifications, variations and changes may be made without departing from the scope of the claims.

A Moving bridge B Lighting bridge G Gallery g1 Handrail P Hanging material R1, R2 Rail 1A, 1B Traveling means 2 Support member 3 Floor plate 4 Construction plate 5 Stairs 12, 15 Wheel

Claims (2)

In the movable bridge for moving the gallery extending in the depth direction to the sleeve of the stage, overcoming the handrail of this gallery from the gallery, and moving to the lighting bridge extending in the front direction of the stage,
One or more traveling means for traveling on one or more rails arranged along the gallery and extending in the horizontal direction, and a support attached to the traveling means, disposed between the suspension material supporting the gallery and the handrail. A member, a floor plate supported by the support member, an erection plate connected to the floor plate and extending toward the lighting bridge, and a staircase connected to the floor plate and rising from the gallery to the floor plate. A mobile transit bridge. The rail is fixed to the suspension member and provided side by side in two up and down directions.
The traveling means that travels on the upper rail includes wheels that rotate about an axis along the horizontal direction, and the traveling means that travels on the lower rail includes wheels that rotate about an axis along the vertical direction. The mobile transit bridge according to claim 1, wherein:

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