JP3572991B2 - Folding temporary structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a foldable temporary structure used for a temporary roof or the like.
[0002]
[Prior art]
When a temporary venue is to be created outdoors for an event or the like, a large temporary tent structure is generally employed. The temporary tent structure generally has a structure in which a pipe structure serving as a skeleton is assembled and a sheet is stretched around the pipe structure.
[0003]
[Problems to be solved by the invention]
However, in the conventional temporary tent structure, especially in the case of a large-sized temporary tent structure, there are cases in which work at a high place is required, so that a lot of labor and time are required for assembling the frame, disassembling the work, expanding the seat, and removing and storing the work. Was required.
[0004]
The present invention is to solve the above problem, and the purpose is to reduce each side frame from a planar development shape on the surface of the ground, to obtain a three-dimensional structure, and conversely, expand each side frame. By doing so, it is possible to provide a foldable temporary structure that can be deployed on the ground surface.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a plurality of expandable and contractible beam frames constituting a roof bottom having an n-gon shape (n ≧ 3), hinges at both ends at intersections of the beam frames, and A foldable temporary structure including a plurality of roof frames that can be bent via a hinge , comprising a beam frame that supports the roof portion, and a floor frame that can expand and contract on each side similarly. Each intersection point of the floor frame and each intersection point of the beam frame are connected by a plurality of columns having a fixed length via hinges . Therefore, in the present invention, in a state where each beam frame is reduced, the roof frame hinged to each of them constitutes a truss, and the intermediate hinge is concentrated at one location with the ridge top, and each beam frame is extended. The work can be completed in a short period of time because each member can be reversibly changed from a flat deployed shape to a three-dimensional truss shape only by the expansion and contraction action of the beam frame, such as the roof frame being unfolded flat along the beam frame. As much as possible, only the roof can be opened and closed while maintaining the three-dimensional shape of the structure .
[0007]
Further, each of the beam frames includes a fixed pipe that regulates the length of each side of the bottom surface at the time of the minimum contraction, and a telescopic rod that is inserted into the left and right sides of the fixed pipe so as to be able to protrude and retract, and is fixed at each intersection point. A roof sheet winding mechanism is provided on each fixed pipe, and the bottom of the roof sheet formed in a truss shape along the roof surface is connected to the winding mechanism, and the vertex is connected to the intermediate hinge of the roof frame. Accordingly, the work of stretching and winding and storing the sheet can be performed simultaneously with the disassembly and disassembly of the frame, and the working efficiency is further improved.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1A and 1B show a basic embodiment according to the principle configuration of the present invention, in which FIG. 1A shows a three-dimensional assembled shape, FIG. 1F shows a developed shape, and FIGS. Is shown.
[0009]
In FIG. 1A, the axes AB, BC, and CA connected in a triangular shape constitute a floor frame, and are installed on the site as shown by hatching in the figure. Similarly, axes DE, EF, and FD connected in a triangular shape form a beam frame, and all axes are extendable horizontal axes.
[0010]
Between the intersections of the axes constituting the floor frame and the beam frame, both ends are hinged by axes AE, AF, BF, BD, CD, and CE constituting a column of a fixed dimension, and the surface surrounded by each axis is trussed. It is shaped like a wall. In the drawings, the crosses indicate the extendable shafts, and the circles indicate the hinge positions.
[0011]
Furthermore, axes EGF, FGD, and DGF constituting a roof hinged so as to be bent at an intersection G at an intermediate portion thereof are arranged at intersections of the respective axes constituting the beam frame, and the three-dimensional assembled shape shown in FIG. In, the truss-shaped roof part having a constant roof slope with the intersection G as the center of the ridge is formed on three sides.
[0012]
This roof slope can be calculated according to the amount of expansion and contraction of each axis constituting the beam frame. When the amount of expansion and contraction is large, the slope becomes large, and when the amount of expansion and contraction is small, the slope becomes small. In any case, the intersection points G can be gathered in one place with each axis completely reduced.
[0013]
The degrees of freedom of the hinge points at both ends of each axis EGF, FGD, and DGF are 1, and both ends are hinged in an inclined state in order to keep the roof gradient constant. From the state until it is released as described later, the height of each axis is reduced while maintaining the self-standing state at a constant inclination angle.
[0014]
Therefore, in order to open the roof from the assembled state, the axes DE, EF, and FD are extended, so that the roof is moved from the assembled state to the axes EG "F, FGD as shown in (b) and (c). , DG'F, and flatten each truss shape while keeping the roof gradient constant while gradually leaving the centers G, G ', G "as hinge points.
[0015]
Then, as shown in (d), when the shafts DE, EF, and FD are fully extended, the shafts EG "F, FGD, and DG'F are almost fully extended, and the roof is in a fully open state. The axes AE, AF, BF, BD, CD, and CE constituting the columns are inclined in a twisted state due to the difference in the extension of the beam frame with respect to the floor frame, and the height of the structure is reduced. It is in a state where it is.
[0016]
Next, when the axes AB, BC, and CA constituting the floor frame are extended at the time of dismantling, as shown in (e), the entire structure is spread, while the axes AE, AF, BF, BD, and CD constituting the columns are extended. , CE increase and the height decreases.
[0017]
Then, finally, as shown in (f), when the axes AB, BC, and CA extend completely, each member is completely flat on the site surface and grounded. Therefore, in the subsequent work, if each member is separated from the hinge point or the like, it is disassembled into individual frames, and the withdrawal work becomes easy.
[0018]
At the time of assembling, the frames are assembled in an unfolded state as shown in (f), and then each frame is sequentially reduced in the reverse procedure to assemble into a three-dimensional shape as shown in (a). it can.
[0019]
Next, FIG. 2 shows an open form of a roof portion in the foldable temporary structure. First, (a) shows the form when the roof is fully closed, as described above. By extending only the shaft FD from this state, the shaft FGD constituting one roof portion of the three roof surfaces is flattened and the surface is opened, as shown in FIG.
[0020]
Next, by extending the axis DE, the axis DGE constituting the other roof surface is flattened and the two surfaces are opened as shown in FIG. By further extending the shaft EF, the shaft EGF constituting the last roof surface is flattened as shown in FIG.
[0021]
As described above, since the roof surface at a desired position can be independently opened and closed by extending the axis of each side constituting the beam frame, for example, air conditioning such as natural dimming or ventilation according to sunshine, wind direction, etc. Available to
[0022]
Furthermore, since the wall formed by the frame of each pillar, beam, and floor is in a kinked state according to the extending side, in a large temporary structure, by providing an audience seat or the like inside the wall, The direction and inclination of the audience seats can be changed, and each roof can be opened and closed according to the purpose.
[0023]
In the above embodiment, the inclination angle of the roof portion is fixed, and as a result, the roof portion arranged on the other side is separated due to a change in the length of one side. It is also possible to make it variable according to the change, so that only one surface is open and the other surface is closed, and this can be achieved by synchronizing the inclination angle and the extension amount.
[0024]
In the case of a large temporary structure, drive mechanisms such as a motor and a hydraulic cylinder should be placed at each telescopic position as a drive device for expansion and contraction, and these mechanisms should be connected to a control device and controlled. Thus, after the assembling work on the ground surface, the assembling and deploying work can be automatically performed.
[0025]
Furthermore, in the above embodiment, the floor surface is triangular as a basic structure, but it is needless to say that the floor can be expanded to a quadrangle or more.
[0026]
Next, FIGS. 3 to 5 show specific structural examples of the basic embodiment. FIG. 3 shows the assembled state, FIG. 4 shows the progress of deployment, and FIG. 5 shows the deployed state. . In the drawing, reference numeral 10 denotes a beam frame corresponding to the axes DE, EF, and FD horizontally framed in an equilateral triangle shape via a connecting portion 12, and 14 denotes an intersection point of each beam frame 10 via a hinge 16. A roof frame corresponding to the shafts EGF, FGD, and DGF described above, which is hinged at both ends in an inclined state and has a central portion foldably connected via an intermediate hinge 18.
[0027]
Each beam frame 10 has a fixed pipe 20 that regulates the length of each side during assembly, and a telescopic rod 22 (see FIG. 4) that is inserted through both ends of the fixed pipe 20 so as to be able to protrude and retract, and the other end is fixed to each connecting portion 12. , 5), and a drive mechanism (not shown) for sliding the telescopic rod 22.
[0028]
On each of the fixed pipes 20, a retractor 26 for winding and feeding out a waterproof sheet 24 constituting a roof membrane is disposed along substantially the entire length thereof. The retractor 26 constantly urges the rotation axis thereof toward the winding side of the sheet 24 by a spring pressure or the like, or includes a power mechanism for rotating the rotation shaft in synchronization with the expansion and contraction of the beam frame 10.
[0029]
The seat 24 is trimmed in a triangular shape along the shape of the roof frame 14 at the time of assembly, and has a base connected to the retractor 26 and a vertex connected and fixed to the intermediate hinge 18 of the roof frame 14. Therefore, when the structure is assembled, as shown in FIG. 3, the sheet 24 is stretched along the inside of each roof frame 14 and constitutes a roof surface.
[0030]
When each beam frame 10 is extended from the above assembled state, as shown in FIG. 4, each roof frame 14 is sequentially flattened, and at the same time, the sheet 24 is wound around the retractor 26.
[0031]
As described above, in the present embodiment, the sheet is extended at the same time as the frame constituting the roof portion is started up, and the sheet is wound and stored at the same time as the frame is expanded, so that the work can be performed more quickly. .
[0032]
In the present embodiment, the column and the floor frame have been described as being omitted, but a structure with a wall surface can be adopted similarly to the basic embodiment.
[0033]
【The invention's effect】
As described above, according to the foldable temporary structure according to the present invention, the work of merely reducing each side frame from the planar development shape at the ground surface portion becomes a three-dimensional structure, and conversely, each side frame is extended. As a result, it can be deployed on the ground surface, and the time for assembling and removing the temporary structure can be greatly reduced.
[Brief description of the drawings]
FIGS. 1 (a) to 1 (f) are explanatory views of the principle from an assembled state to a deployed state in a basic embodiment of the present invention.
FIGS. 2 (a) to 2 (d) are principle explanatory diagrams showing a release mode of a roof portion in the embodiment.
FIG. 3 is a perspective view showing an assembled state according to a specific configuration example in the embodiment.
FIG. 4 is a perspective view showing the progress of the deployment.
FIG. 5 is a perspective view showing the developed state.
[Explanation of symbols]
10 (axis DE, EF, FD) Beam frame 14 (axis EGF, FGD, DGF) Roof frame 16 Hinge 18 Intermediate hinge 20 Fixed pipe 22 Telescopic rod 24 Waterproof sheet 26 Retractor (winding mechanism)
AB, BC, CA Floor frame (axis)
AE, AF, BF, BD, CD, CE Pillar (axis)

Claims (2)

A plurality of telescopic beam frames constituting a roof bottom having an n-sided polygon (n ≧ 3), and a plurality of roof frames hinged at both ends at intersections of the beam frames and whose intermediate portions can be bent through the hinges. A folding temporary structure consisting of
A beam frame supporting the roof, and a floor frame each side of which is similarly expandable and contractable, each intersection of the floor frame, a plurality of fixed lengths between the intersections of the beam frame via hinges. Foldable temporary structure characterized by being connected by pillars. Each of the beam frames includes a fixed pipe that regulates the length of each side of the bottom surface at the time of the minimum contraction, and a telescopic rod that is inserted through the left and right sides of the fixed pipe so as to be able to protrude and retract, and is fixed at each intersection point.
A roof sheet winding mechanism is provided on each fixed pipe, and the bottom of the roof sheet formed in a truss shape along the roof surface is connected to the winding mechanism, and the vertex is connected to the intermediate hinge of the roof frame. The foldable temporary structure according to claim 1, wherein:

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