JPH0449390A - Folding plate type roof - Google Patents

Abstract

PURPOSE:To obtain a completely openable roof with increased productivity and economic merit by connecting frame members composing diamonds to be freely rotatable at an archframe, and connecting the adjacent frame members with each other to be freely rotatable and further, folding each diamonds shapes with an erected form. CONSTITUTION:A folding roof structure A with a cylindrical form and a curva ture plate is erected to form diamond-shapes including an archframe 2 arranged in the trough and comprising two frame members 1, 1 at one side thereof. And, the frame members 1, 1 are connected to the frame 2 and also folded whenever necessary to be freely rotatable around the axis and to the trough direction with each other. The frame members 1, 1 rotate around the frame 2 on constricting and simultaneously the frame members of the adjacent units are rotated against each other. Moreover, the units are erected to fold in accor dance with the decreased distance between the frames 2, 2 to completely contain in the one side for fully opening of the roof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a folded plate roof that can be folded in one direction and can be opened and closed.

[Prior Art and Problems to be Solved by the Invention] Conventionally, openable and closable roofs have been constructed by reciprocating a shell unit made up of a plurality of parts that make up a dome in one direction, or by using supports located at the top or periphery of a dome. The dome roof is generally opened and closed by rotating it around an axis, and many dome roofs of this type have been proposed to date.

These dome roofs are mainly designed to open up the sky by storing multiple units stacked on top of each other, but when opened, it is smaller than the units and it is impossible to reduce the roof area, so there is only one way. Conventional dome roof forms have unique problems, such as the fact that they cannot be fully opened by simply opening and closing the dome, or unless they are moved outside the stadium.

The present invention attempts to propose a new retractable roof with a structure different from the conventional structure, in addition to the conventional retractable dome roof.

[Means to solve the problem]

In the present invention, by applying a folded plate roof to the roof, a novel opening/closing roof is realized which can obtain a completely open state with one opening/closing operation.

The frame of a folded plate roof forms a curved plate-like three-dimensional structure roof when unfolded, and has a planar shape in which a diamond-shaped pattern continues in two directions from the frame material forming the frame, and each diamond-shaped frame material has a mountain and a diamond-shaped pattern. One diagonal line forms a valley and is expandable and contractible in the direction perpendicular to it, and an arch frame that maintains the form and span of the frame is constructed in the direction of the diamond-shaped valley adjacent at the apex in the direction of expansion and contraction.

The frame is diamond-shaped, with this arch frame placed in the valley.
The basic unit is an isosceles triangle composed of two frame members on one side including the arch frame, and the frame member of this basic unit is connected to the arch frame so as to be rotatable around its axis, and at the same time, Basic units whose apexes are adjacent to each other in the expansion/contraction direction are connected to each other so as to be rotatable around an axis in the valley direction, so that the rhombus shape can be folded freely, forming a roof that can be opened and closed.

The folded plate structure with a continuous rhombus pattern is a completely developable curved surface, so it expands and contracts in two diagonal directions at the same time. It expands into a shape, and conversely contracts into an arch shape with a large curvature when folded, and the curvature changes depending on the opening and closing.
In other words, the span changes. In other words, a normal folded plate structure cannot provide a certain fixed trajectory when opening and closing.

In order to open and close the frame along a certain trajectory, it is necessary to keep the curvature constant, but in the present invention, the diagonal distance in the valley direction of the rhombus is constrained by the arch frame, and the basic unit is attached to the arch frame. Lay it down against. Alternatively, by making it stand up, regardless of the expansion and contraction of the rhombus, only the diagonal distance in the direction of expansion and contraction on the plane changes, and the diagonal distance in the valley direction, that is, the span, is kept constant, allowing the roof to expand and contract at a constant curvature. .

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

The folded plate roof A of this invention is shown in FIG.
It is constructed by attaching a frame material 1 having a planar shape with a diamond-shaped pattern continuous in two directions as shown in ■, and a roofing material 3 to a frame formed in a cylindrical curved plate shape as shown in ■. , each diamond-shaped frame member 1 is a mountain, I is shown by a chain line,
One diagonal of the rhombus forms a valley, and the rhombus contracts in a direction perpendicular to the valley in a plan view, making it foldable.

In the direction of the diamond-shaped valley adjacent to the expansion/contraction direction, an arch frame 2 that maintains the form of the frame and a constant span is constructed as shown in the figure, and the frame to the folded plate roof is vertically maintained regardless of whether it is opened or closed. It has a structure that maintains a constant curvature. The arch frame 2 is placed at the position shown by the double dashed line in Figure 1-■. Connect the valleys of the basic unit (to be described later) with a straight scarlet line as shown in Q.
It is bent and constructed.

The frame of the folded plate roof A includes a rhombus-shaped arch frame 2 placed in the valley of the arch frame 2, while the basic unit is an isosceles triangle composed of two frame members 1.1. There is.

The frame material 1.1 of this basic unit is connected to the arch frame 2 so as to be rotatable around its axis, and the frame material 1.1 of the basic unit adjacent in the expansion/contraction direction is connected to the arch frame 2 so as to be rotatable around its axis. I are rotatably connected to each other about an axis in the valley direction. The nodes (joints) 4 between the frame material 1 and the arch frame 2 are shown by white circles in FIG. 4, and the nodes 4' between the frame materials 1 and 1 of each basic unit are shown by black circles.

When the frame contracts, the frame material 1.1 of the basic unit rotates around the arch frame 2, and at the same time, the frame materials 11 of adjacent basic units rotate with respect to each other, so that the distance between the arch frames 2.2 is shortened. 5, the basic unit stands up and is folded as shown in FIG.

Figure 2 shows a case where a frame with a cross-sectional shape tangent to a cylinder with a single radius is formed, but as shown in Figure 3, the curvature changes in the circumferential direction by changing the distance of the diagonal line in the valley direction of the rhombus. , a frame with an arbitrary cross-sectional shape is formed.

The frame made of frame material 1 is covered with roofing material 3 to form a folded-plate roof A. The roofing material 3 covered with this folded-plate roof A is designed to follow the folding of the frame as shown in FIG. As shown in (2), a diamond-shaped sling 3a is inserted in a direction perpendicular to the arch frame 2, which is sandwiched between the parallel arch frames 2, 2. A membrane material, a metal plate, or the like is used for the roof material 3.

When the Mm membrane material is pasted, the rhombus formed between the parallel arch frames 2, 2 has a slit 3a with each frame material 1, 1 of the basic unit adjacent in the expansion/contraction direction as the oblique side. It is divided into isosceles triangles, and this isosceles triangle is further divided into right triangles by the perpendicular bisector, which is the valley when folded, and each right triangle rotates around the frame material 1 when the basic unit is folded. ,
As shown in FIG. 4, the isosceles triangle is bent and folded symmetrically with respect to the bisector passing through the base.

Figures 5 to 7 show the state of the folded plate roof A when it is folded and unfolded. By gradually opening it, it follows the change in the distance between the nodes 4.4 adjacent in the valley direction.

〔Effect of the invention〕

The present invention is as described above, and by rotatably connecting frame members forming a rhombus to an arch frame that holds a span, and at the same time rotatably connecting frame members adjacent to each other in the expansion/contraction direction. ) The basic unit consisting of two frame materials is made up of a triangular shape, and each rhombus shape is folded while the triangle is erected or laid down, so it can be opened and closed while keeping the form and span of the frame constant. Since it can be retracted, it is possible to obtain a completely open state.

In addition, since the frame has regularity, it is possible to standardize the frame materials, making it highly manufacturable and economical.In addition, since the roof surface can be developed flat, the yield of roofing materials is high, making it economical. It is.

[Brief explanation of the drawing]

Figure 1 - ■ is a plan view showing a part of the roof, ■ is an elevation view, and Figures 2 and 3 show the pattern of the frame.
Each I is a plan view, ■ is an elevation view, Fig. 4 is a perspective view showing how the roof is folded, and Figs. 5 to 7 show changes from the contracted state to the unfolded state of the folded plate roof. FIG. A...Fold+iam, 1...Frame material, 2...Arch frame, 3...Roofing material, 3a...Old...IJt, 4 , 4'... Node (joint). Figure 1 A/

Claims (1)

[Claims] (1) The frame material forming the frame has a planar shape in which a diamond-shaped pattern continues in two directions, and each diamond-shaped frame material is a mountain, and one diagonal of the diamond shape is a valley, which is expandable and contractible in the direction perpendicular to it. It is a folded plate roof with a curved plate shape, and an arch frame that maintains the form and span of the frame is erected in the direction of the valley, which has a rhombic shape that is adjacent at the apex in the direction of expansion and contraction, and the frame is placed in the valley. The basic unit is an isosceles triangle made up of two frame members on one side of a rhombus, including the arch frame, and each frame member of this basic unit is connected to the arch frame so that it can freely rotate around its axis. The expandable folding plate roof is characterized in that the frame members of the basic units whose vertices are adjacent to each other in the direction of expansion and contraction are connected to each other so as to be rotatable around an axis in the direction of the valley.