JP2000303720A - Foldable temporary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a solid structure by work only to contract each of side frames from a flat developed shape on a ground surface part and to develop it on the ground surface part by extending each of the side frames in the opposite way. SOLUTION: Each of beam frames 10 to constitute a roof bottom surface to be an (n) angular shape (n>=3) is constituted free to extend and contract, it is constituted of a plural number of roof frames 14 both sides of which are hinged at an intersection point position of each of the beam frames 10 and intermediate parts of which are free to fold through a hinge, the respectively hinged roof frames 14 constitute a truss in a state of contracting each of the beam frames 10, they are concentrated at one point with an intermediate hinge 16 as its ridge part top point, and the roof frames 14 are devised to be developed on a flat surface along the beam frames 10 in a state of extending each of the beam frames 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a foldable temporary structure used for a temporary roof or the like.

[0002]

2. Description of the Related 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]

However, in the conventional temporary tent structure, especially in the case of a large-sized temporary tent structure, the work of assembling the frame, disassembling work,
In addition, there is a problem that a lot of manpower and time are required for the work of expanding and removing and storing the sheet.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a three-dimensional structure by simply reducing each side frame from a planar development shape on the ground surface.
Conversely, the present invention provides a folding temporary structure that can be deployed on the ground surface by extending each side frame.

[0005]

In order to achieve the above object, the present invention provides a plurality of telescopic beam frames constituting an n-sided (n ≧ 3) roof bottom, and an intersection position of each beam frame. And a plurality of roof frames that are hinged at both ends and that can be bent at the intermediate portion via the hinge. Therefore, in the present invention, in a state where each beam frame is reduced, the roof frame hinged to each truss constitutes a truss, and the intermediate hinge is concentrated at one location as a ridge top, and each beam frame is extended. , The roof frame unfolds flat along the beam frame,
Each member can be reversibly changed from a planar development shape to a three-dimensional truss shape only by the expansion and contraction of the beam frame, so that the work can be completed in a short time.

Further, according to the present invention, there is provided a beam frame for supporting the roof portion, and a floor frame in which each side can be expanded and contracted similarly, and each intersection of the floor frame and each intersection of the beam frame are hinged. With the structure connected by a plurality of pillars having a fixed length through the structure, only the roof can be opened and closed while maintaining the three-dimensional shape of the structure.

Further, each of the beam frames has a fixed pipe for regulating the length of each side of the bottom surface at the time of the minimum contraction, and a telescopic rod which 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 take-up mechanism is provided on each fixed pipe, and the bottom side of the roof sheet formed in a truss shape along the roof surface is connected to the take-up mechanism, and a vertex is provided at an intermediate hinge of the roof frame. By the connection, 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]

Preferred embodiments of the present invention will be described below 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.

In FIG. 1A, 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. Axis DE, EF, FD connected in the same triangular shape
Constitutes a beam frame, and both axes are extendable horizontal axes.

Axes AE, AF, B constituting columns having a certain dimension are provided between intersections of axes constituting the floor frame and the beam frame.
Both ends are hinged by F, BD, CD, CE,
The surface surrounded by each axis is a truss-like wall. In the drawings, the crosses indicate extendable shafts, and the circles indicate hinge positions.

Further, 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, as shown in FIG. In the three-dimensional assembled shape, a truss-like roof portion having a constant roof slope with the intersection G as the center of the ridge portion is formed on three sides.

The 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 is small. Become. In any case, the intersection points G can be gathered in one place with each axis completely reduced.

Further, the degrees of freedom of the hinge points at both ends of each axis EGF, FGD, DGF are 1, and both ends are hinged in an inclined state in order to keep the roof slope constant.
As shown, from the assembled state of the roof to the opening as described later, each shaft is lowered while maintaining its self-standing state at a fixed inclination angle.

Therefore, in order to open the roof from the assembled state, the axes DE, EF and FD are extended,
As shown in (b) and (c), the roof part is divided into three axes EG "F, FGD, and DG'F from the assembled state, and each center G, G ', G" is set as a hinge point. Flatten each truss shape while keeping the roof slope constant while gradually leaving.

Then, as shown in (d), the axes DE, E
In the state where F and FD are fully extended, the axes EG "F, FGD, D
G'F is almost fully extended, and the roof is fully opened. Note that in this state, the axes AE, AF, BF, B
D, CD, and CE are inclined in a twisted state due to the difference in extension of the beam frame with respect to the floor frame, and the height of the structure is reduced, but the wall surface of the structure is held.

Next, at the time of disassembly, when the axes AB, BC and CA constituting the floor frame are extended, as shown in FIG.
Axes AE, A that make up the pillar while the whole structure spreads
The degree of inclination of F, BF, BD, CD, CE increases, and the height decreases.

Then, finally, as shown in (f), when the axes AB, BC, and CA are completely extended, 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.

At the time of assembling, the frames are assembled on the site in an unfolded state as shown in (f), and then the respective frames are sequentially reduced in the reverse order to the above, so that a three-dimensional shape as shown in (a) is obtained. Can be assembled.

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, as shown in FIG. 3B, the shaft FGD constituting one roof portion of the three roof surfaces is flattened and the surface is opened.

Next, by extending the axis DE,
As shown in (c), the axis D constituting the other roof surface
GE is flattened and two sides open. By further extending the shaft EF, the shaft EGF constituting the last roof surface is flattened as shown in FIG.

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, natural light control and ventilation can be performed according to, for example, sunshine, wind direction, and the like. It can be used for air conditioning.

Furthermore, the wall formed by the frame of the columns, beams, and floor is twisted according to the extending side, so that in a large temporary structure, an audience seat or the like is provided inside the wall. Thus, the direction and inclination of the audience seats can be changed, and each roof can be opened and closed according to the purpose.

In the above embodiment, the inclination angle of the roof is fixed, and as a result, the length of one side changes, so that the roofs arranged on the other side are separated. It is also possible to make the roof slope variable according to the change, so that only one side is open and the other side is closed, and this can be achieved by synchronizing the inclination angle and the extension amount.

In the case of a large-scale temporary structure, a drive mechanism such as a motor and a hydraulic cylinder is disposed at each of the expansion and contraction positions, and these mechanisms are connected to a control device or the like. By performing the control, after the assembling work on the ground surface portion, the assembling and deploying work can be automatically performed.

Further, in the above-described embodiment, the floor has a triangular floor as a basic structure. However, it is needless to say that the floor can be expanded to a quadrangle or more.

FIGS. 3 to 5 show specific structural examples of the basic embodiment. FIG. 3 shows the assembled state, FIG. 4 shows the progress of the development, and FIG. Is shown. In the figure, reference numeral 10 denotes the axes DE, EF, FD, which are horizontally framed in a regular triangular shape via a connecting portion 12.
, The both ends of the beam frame 14 are hinged at the intersection of the respective beam frames 10 via hinges 16 in an inclined state,
And a roof frame corresponding to the shafts EGF, FGD, and DGF, the central portions of which are foldably connected via an intermediate hinge 18.

Each beam frame 10 has a fixed pipe 20 for regulating the length of each side at the time of assembly, and a telescopic rod 22 which is inserted through both ends of the fixed pipe 20 so as to be able to protrude and retract and has the other end fixed to each connecting portion 12. (See FIGS. 4 and 5), and a drive mechanism (not shown) for sliding the telescopic rod 22 is provided.

On each fixed pipe 20, a retractor 26 for winding and unwinding the waterproof sheet 24 constituting the roof membrane is arranged along substantially the entire length thereof. Retractor 26
Includes a power mechanism that constantly urges the rotation axis thereof toward the winding side of the sheet 24 by a spring pressure or the like, or rotates the rotation axis in synchronization with the expansion and contraction of the beam frame 10.

The seat 24 is trimmed in a triangular shape along the shape of the roof frame 14 at the time of assembly.
The base is connected to the retractor 26 and the vertex is connected and fixed to the intermediate hinge 18 of the roof frame 14. Therefore,
In a state where the structure is assembled, as shown in FIG. 3, the seat 24 is stretched along the inside of each roof frame 14 to constitute a roof surface.

When each beam frame 10 is extended from the above assembled state, as shown in FIG.
Is flattened, and at the same time, the sheet 24 is wound around the retractor 26.

As described above, in the present embodiment, the seat is extended at the same time when the frame constituting the roof is started up.
The sheet is wound up and stored at the same time as the frame is unfolded, so that the work can be performed more quickly.

In the present embodiment, the column and the floor frame have been described as being omitted. However, a structure having a wall surface can be adopted similarly to the basic embodiment.

[0033]

As described above, according to the foldable temporary structure according to the present invention, a three-dimensional structure can be obtained by simply reducing each side frame from the planar development shape at the ground surface. By extending the side frame, 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]

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 (3)

[Claims] 1. A plurality of expandable and contractible beam frames constituting an n-sided (n ≧ 3) roof bottom surface, both ends are hinged at intersections of the beam frames, and an intermediate portion can be bent through the hinges. A foldable temporary structure comprising a plurality of roof frames. 2. A beam frame for supporting the roof portion, and a floor frame each of which can expand and contract similarly, and each intersection of the floor frame and each intersection of the beam frame are extended via a hinge via a hinge. The foldable temporary structure according to claim 1, wherein the temporary structure is connected by a plurality of fixed columns. 3. 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 take-up mechanism is provided on each fixed pipe, and the bottom side of the roof sheet formed in a truss shape along the roof surface is connected to the take-up mechanism, and a vertex is provided at an intermediate hinge of the roof frame. The foldable temporary structure according to claim 1, wherein the foldable temporary structure is connected.