JP2014015820A - Dome-like structure using air film and framed structure for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a dome-like structure which can be repeatedly assembled and disassembled through a simple construction method.SOLUTION: A dome-like structure using an air film comprises: a framed foundation section 1 which is assembled in a ring pattern by connecting a plurality of arc-like framed foundation members 2; a dome frame H which has a plurality of arch-like beams 6 and a plurality of supporting columns 11 vertically constructed with respect to the framed foundation section and is assembled by connecting the arch-like beams in such a manner that they radially extend from an apex point toward the framed foundation section; a dome-like air film which configures an air dome by being supported by the dome frame; and means U which covers an opening section between a lower edge of the air dome arranged at a position elevated a predetermined height from an installation surface through the supporting columns and the installation surface.

Description

  The present invention relates to a dome-like structure provided with a dome-like screen for projecting various images by a projector and a starry sky projection by a planetarium projector, and more particularly to an air dome using an air film.

  When projecting all-round movies or projecting the starry sky with a planetarium projector, a dome with a screen space inside is used, and the image is projected on the screen inside the dome. In this case, the dome was positioned as a building, and its construction required building work. That is, in this case, a large-scale process of constructing a dome frame on the foundation and providing an outer roof and a screen there was required.

  On the other hand, in a video facility that is set up for a short period of time in an event rather than a video facility that is permanently installed, or in a traveling video facility that moves around the country, a simple method that can be repeatedly assembled and disassembled is used. It was required to be enforced. Therefore, an air dome that retains a dome shape by blowing into a dome space covered with an air film configured in a dome shape (for example, Patent Document 1), or air between the inner film and the outer film is subjected to negative pressure or positive pressure. The air dome which consists of a double air film structure which keeps a dome shape by keeping a pressure was used (for example, patent documents 2-4).

  In the latter case in the prior art, the air film is supported by a dome frame composed of a rigid material such as a metal, and it is necessary to first perform the dome frame for the enforcement of the dome-like structure. It was. The dome-like structure of the present invention belongs to the latter in the prior art.

Japanese Patent Laid-Open No. 2004-250909 Microfilm filming the contents of the description and drawings attached to the application for the actual application No. 126807 Japanese Patent Publication No. 6-25489 Japanese Patent No. 3270366 JP-A-6-229057

  By the way, since the dome-shaped structure has a spectator for viewing the image inside, the dome is reproduced in the radial direction to maintain its height because of the nature of the dome that the whole sky image is reproduced above the audience. The dimensions had to be secured and a corresponding size was required.

  On the other hand, depending on the purpose of video presentation, for example, when a simple promotional video is shown in an indoor venue of an event, a large audience is not necessarily assumed, and a small audience may be assumed. In such a case, increasing the size of the dome only for the purpose of maintaining the height is not preferable due to problems of installation space and cost.

  In addition, due to the nature of the dome, where the whole sky image is reproduced above the audience's head, the top of the dome will be located at a high place that is not reachable by humans. Not only is it uneconomical and heavy equipment is needed to lift personnel to high altitudes, but in the case of indoor venues where heavy machinery cannot enter, the implementation itself will be hindered.

  The present invention has been created for the purpose of providing a dome-like structure using an air film that solves the above problems, and a framework structure thereof. In other words, the framework structure according to claim 1 is provided vertically to a framework foundation portion that is assembled in a ring shape by joining a plurality of arc-shaped framework foundation members, a plurality of arched beams, and the framework foundation portion. A dome frame for supporting a dome-shaped air film is assembled by joining the above-mentioned arched beam so as to extend radially from the apex to the frame base. The dome frame is arranged at a position where the required height is raised with respect to the installation surface by the support column.

  The invention described in claim 2 is characterized in that, in the framework structure described above, means for changing the height is provided on all or a part of the plurality of support pillars.

  A dome-like structure using an air film according to claim 3 is a frame base part assembled in a ring shape by joining a plurality of arc-shaped frame base members, a plurality of arched beams, and a frame A dome frame having a plurality of support pillars suspended from the base, and assembled by joining the arched beam so as to extend radially from the apex to the frame base; and the dome The dome-shaped air film that forms the air dome by being supported by the framework, and the open part between the lower end of the air dome and the installation surface that is placed at a position where the required height is raised by the support column It is characterized by comprising means for covering.

  The invention described in claim 4 is characterized in that, in the dome-shaped structure, means for changing the height is provided on all or a part of the plurality of support pillars.

  The invention according to claim 5 is characterized in that, in the dome-shaped structure, the air dome is inclined and lifted with respect to the installation surface by changing the height of the support columns.

  According to a sixth aspect of the present invention, in the dome-shaped structure, a plurality of structure units having at least one wall surface are prepared, and these structure units are arranged circumferentially below the air dome. Thus, the means for covering the open portion between the lower end of the air dome and the installation surface is used.

  The invention according to claim 7 is characterized in that, in the dome-shaped structure, the structure unit can be made independent by providing at least three wall surfaces.

  The invention according to claim 8 is the above-mentioned dome-shaped structure, wherein the structure unit is a wall surface unit that constitutes only a wall surface, an entrance unit having an opening through which a human can pass and its light shielding means, and an openable door. Any one or all of a door unit having a space, a space in which a human enters, and a counter unit having a counter opened to the outside are included.

  The invention according to claim 9 is characterized in that, in the dome-shaped structure, the screen is an air dome screen which is kept in a dome shape by blowing air into an air film formed in a dome shape. .

  According to a tenth aspect of the present invention, in the dome-shaped structure according to the tenth aspect, the screen is an air having a double air film structure in which the air between the films is maintained in a dome shape by maintaining a negative pressure or a positive pressure. It is a dome screen.

  According to the dome-like structure using the air membrane of the present invention having the above-described configuration and the skeleton structure thereof, the dome skeleton is joined so that a plurality of arch-shaped beams extend radially from the apex to the skeleton base. Since the above dome frame is also assembled in a ring shape by joining a plurality of arc-shaped frame foundation members, if these are housed and transported in a disassembled state, a dome-shaped structure that is highly portable Is realized.

  On the other hand, the dome frame is disposed at a position where the required height is raised with respect to the installation surface by the support column. Therefore, even if the dome itself is not enlarged, if the height of the support pillar is increased, the whole sky image can be reproduced above the audience's head, so the dome can be reduced in size and realistic in size for the purpose of the screening. A dome can be used.

  Further, according to the framework structure of claim 2 and the dome-like structure of claim 4, means for changing the height of all or a part of the plurality of support pillars is provided. When assembling and attaching the air film, perform it in a low place where the height of the support pillar is minimized, and then raise the completed air dome to the required height, and it will be done manually by the hand near the top of the dome without using heavy equipment In addition to being able to reduce work costs, it is also possible to implement dome-shaped structures at indoor event venues where heavy machinery cannot enter.

  Further, in the above case, according to the dome-shaped structure according to claim 5, it is possible to easily implement the inclined dome by changing the height of the support columns, and the degree of inclination is displayed on the image to be screened. Correspondingly, it can be changed freely.

  It is well known that a dome is provided at a high place in place of the roof of a building that houses a spectator (for example, Patent Document 5). However, in this case, since the building itself also serves as a structure that supports the dome, it is necessary to implement a building with strength and accuracy that can withstand supporting the dome. It was also difficult to carry out with a simple construction method capable of repeatedly performing decomposition.

  A feature of the present invention is that it is separated from a building that accommodates a spectator, with the role of supporting an air dome positioned at a high place being carried by a plurality of support pillars suspended from its lower end. In this case, it is necessary to provide a means for covering the open part between the lower end of the air dome and the installation surface for light shielding, but since the strength and accuracy are not required in adopting the above means, the degree of freedom is high. . According to the dome-shaped structure according to claim 6, as a means for covering the open portion between the lower end of the air dome and the installation surface, a plurality of structure units having at least one wall surface are arranged below the air dome. It is adopted to arrange in a shape. As a result, the space surrounded by the structure unit functions as a building-like space for accommodating the audience, but unlike a building that starts with foundation work, the structure unit is simply placed on the installation surface. You can play that role alone. Therefore, it is easy to implement and the individual dome unit can be set to a size that can be transported, or if it can be assembled, the dome frame itself can be disassembled as described above. However, a highly portable dome-shaped structure that can be carried and constructed is realized.

  In addition, if the structure unit can be made self-supporting by providing at least three wall surfaces as in the dome-shaped structure according to claim 7, these are not simply walls, but the dome-shaped structure according to claim 8. An entrance unit having an opening through which humans can pass and its light shielding means, such as a structure, a door unit having a door that can be opened and closed, a counter unit having a space where a person can enter and a counter opened to the outside, etc. Like various units, each unit can be used as a structure having individual functions. Therefore, by appropriately combining these, it becomes possible to construct a dome-like structure that suits the purpose of the screening in a flexible manner.

The disassembled perspective view of the framework structure of the dome-shaped structure of this invention. The perspective view of an assembly state same as the above. The top view of a joining member same as the above. The partial top view of a frame foundation part same as the above. The fragmentary sectional view of the framework structure of the dome-shaped structure of this invention. The perspective view of a support pillar same as the above. The auxiliary beam partial sectional view same as the above. The front view of the frame structure of the dome-shaped structure of this invention. The top view of the framework structure of the dome-shaped structure of this invention. The perspective view of the state which abbreviate | omitted the air film of the dome-shaped structure of this invention. The disassembled perspective view of the wall surface unit of the dome-shaped structure of this invention. The disassembled perspective view of the door unit of the dome-shaped structure of this invention. The disassembled perspective view of the entrance unit of the dome-shaped structure of this invention. The disassembled perspective view of the counter unit of the dome-shaped structure of this invention. The perspective view of the dome-shaped structure of this invention. The partially notched front view which shows the use condition of the dome-shaped structure of this invention. The partially notched top view which shows the use condition of the dome-shaped structure of this invention.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1-8 is a figure which shows the framework structure of the dome-shaped structure using the air film of this invention. Reference symbol H in the figure denotes a dome frame for supporting a dome-shaped air film. The dome frame H includes a frame foundation 1 that is assembled in a ring shape by joining a plurality of arc-shaped frame foundation members 2, a plurality of arched beams 6, and a plurality of frames that are suspended from the frame foundation. It is assembled by combining the support pillars 11 of the book. That is, a plurality of arched beams 6 are arranged radially from the apex portion toward the frame foundation 1 and the lower end is joined to the frame foundation 1 to assemble the dome frame H. 11 is arranged at a position raised to a required height with respect to the installation surface.

  The arch-shaped beam 6 is made of a wire having a curve corresponding to the curved surface of the air dome to be implemented, and a joint clamping piece 9 protruding from the upper end of the arch beam 6 is arranged around the top joint member 10 positioned at the apex of the dome frame H. It is extrapolated to a plurality of joining tongue pieces 11 (see FIG. 3) extending radially from the side, and fixed with set bolts 12 to be joined in the shape of an umbrella. The arched beam 6 may be divided into a plurality of beam members, and these may be connected so as to have a required length for use.

  Here, the arcuate beams 6 arranged in the meridian direction are connected to each other by the arc-shaped auxiliary beams 16 arranged in the latitude direction, thereby reinforcing the dome frame H and enhancing the support function of the air film. The auxiliary beam 16 is joined between the arched beams by superimposing the joined tongues 17 projecting at both ends on the joined tongues 18 projecting on the peripheral side of the arched beam 6 and fixing them with the fastening bolts 19.

  Here, the frame foundation member 2 has a structure in which rising edges 3 are erected on four sides for reinforcement, and the rising edges of the end portions are brought into contact with each other at the time of joining, and these are fixed sequentially with fixing bolts 4 to form a ring. The frame-shaped frame foundation 1 is configured (see FIG. 4). The arched beam 6 is joined onto the frame foundation 1 by overlapping the overhanging piece 7 provided at the lower end on the upper surface of the frame foundation member 2 and fixing with a set bolt 8.

  Here, the support column 11 is configured to be variable in height, and as a means therefor, the child column 12B inserted into the cylindrical main column 12A can be raised and lowered (FIG. 5). reference). Reference numeral 13 in the figure denotes a fixing pin that is inserted into both the columns in order to fix both columns at a desired position. In addition, a mechanism for moving up and down by winding and rewinding the wire 15B, one end of which is fixed to the child column 12B, is attached to a part of the support column 11 by a winch 15A provided on the main column 12A. The support column 11 is joined to the frame foundation 1 by inserting the upper end into a sheath-like support column holder 5 suspended from the lower surface of the frame foundation member 2 and fixing it with a set bolt 5 (see FIG. 6). .

  An air dome D is formed on the dome frame H by supporting a dome-shaped air film. The dome-shaped air film itself has a known structure. Here, as shown in FIG. 8, an intermediate air film A1 supported by the frame foundation 1 is arranged outside the frame foundation, and this is combined with the frame foundation. An inner air film A2 is arranged on the inner side, an outer air film A3 is arranged on the outer side of the intermediate air film A1, and the space between the intermediate air film A1 and the inner air film A2 is set to a negative pressure state by a blower (not shown). The space between the air film A1 and the outer air film A3 is maintained in a positive pressure state to maintain a dome shape.

  The above air dome D is arranged at a position where the required height is raised with respect to the installation surface by the support pillar 11, and the space between the lower end and the installation surface serves as a place for accommodating the audience (FIGS. 16 and 17). reference). In this case, it is necessary to provide a means for covering the open space for light shielding. Here, a plurality of structural units U having at least one wall surface are prepared, and these structural units are circularly arranged below the air dome. By arranging it circumferentially, it is a means for covering the open part between the lower end of the air dome and the installation surface (see FIG. 10).

  Here, as the structure unit U, a unit that can be made independent by providing at least three wall surfaces is adopted. In addition to being easy to install by being self-supporting with such a structure, there are merits that the space sandwiched between the wall surfaces can be used for various purposes.

  Here, as the structural unit U, for example, a unit constituted by bending or joining paper board materials is adopted. FIG. 11 shows a wall surface unit U1 constituting only the wall surface, FIG. 12 shows a door unit U2 having a door that can be opened and closed, FIG. 13 shows an entrance unit U3 having an opening through which a human can pass and its light shielding means, and FIG. 1 shows a counter unit U4 having a space where a person enters and a counter opened to the outside.

DESCRIPTION OF SYMBOLS 1 Frame base part 2 Frame base member 6 Arch beam 11 Support column

Claims (10)

  A plurality of arcuate frame foundation members that are assembled in a ring shape by joining together, a plurality of arcuate beams, and a plurality of support columns that are suspended from the frame foundation part, The dome frame for supporting the dome-shaped air film is assembled by joining the arched beam so as to extend radially from the apex to the frame base, and the dome frame is installed on the installation surface by the support column. A frame structure of a dome-like structure using an air film, which is arranged at a position raised to a required height.   The framework structure of a dome-like structure using an air film according to claim 1, wherein means for changing the height of all or a part of the plurality of support columns is provided.   A plurality of arcuate frame foundation members that are assembled in a ring shape by joining together, a plurality of arcuate beams, and a plurality of support columns that are suspended from the frame foundation part, A dome frame that is assembled by joining the arched beam so as to extend radially from the apex to the frame base, and a dome-shaped air film that forms an air dome by being supported by the dome frame. A dome-like structure using an air film comprising means for covering an open portion between the lower end of the air dome and the installation surface, which is disposed at a position where the required height is raised by the support pillar.   4. The dome-like structure using an air film according to claim 3, wherein means for changing the height is provided on all or part of the plurality of support pillars.   The dome-like structure using an air film according to claim 4, wherein the air dome is inclined and lifted with respect to the installation surface by changing the height between the support columns.   Means for covering the open part between the lower end of the air dome and the installation surface by preparing a plurality of structural units having at least one wall surface and arranging these structural units circumferentially below the air dome A dome-like structure using the air film according to claim 4.   The dome-like structure using an air film according to claim 6, wherein the structure unit can be made independent by providing at least three or more wall surfaces.   The structure unit has only a wall surface unit, an entrance unit with a human-accessible opening and its light shielding means, a door unit with an openable / closable door, a space where humans can enter and the exterior unit. The dome-like structure using an air film according to claim 6 or 7, wherein any or all of the counter units having a counter are included.   The dome-shaped structure using an air film according to any one of claims 5 to 8, wherein the screen is an air dome screen that retains a dome shape by blowing air into an air film configured in a dome shape.   The air membrane according to any one of claims 5 to 8, wherein the screen is an air dome screen having a double air membrane structure that keeps the air between the membranes in a dome shape by maintaining a negative pressure or a positive pressure. Domed structure used.

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