JPH07122356B2 - Developable folding board roof - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a foldable foldable roof that can be folded in one direction and can be opened and closed.

[Problems to be Solved by Prior Art and Invention]

Conventionally, the roof that can be opened and closed is configured to open and close by constituting a dome, reciprocating a unit of shells divided into a plurality of directions in one direction, or rotationally moving around a spindle located at the top or the periphery of the dome. However, many dome roofs of this type have been proposed so far.

These dome roofs open the sky mainly by storing a plurality of units in a stacked state, but it is impossible to reduce the deployment area smaller than the units when opened, so there is only one There is a peculiar problem with the conventional dome roof configuration, such as the opening and closing operation of the above does not result in a completely open state unless it is moved outside the stadium.

In addition to the conventional openable and closable dome roof, the present invention intends to newly propose an openable and closable roof having a different form from the conventional structure.

[Means for Solving the Problems]

In the present invention, by applying a folded plate roof to the roof, it is possible to realize a novel open / close roof that can obtain a completely open state by one type of opening / closing operation.

The folded-plate roof frame structure forms a curved plate-shaped three-dimensional structure roof when unfolded, and the rhombus formed from four frame members has a planar shape in which the rhombus is continuous in two directions. One of the diagonals becomes a valley, and it can be expanded and contracted in the direction orthogonal to it. An arch frame that maintains the form and span of the frame is erected in the direction of the valley that passes through the vertices of the diamonds that are adjacent to each other in the direction of expansion and contraction.

The frame is made up of two frame members that form an isosceles triangle whose base is the arch frame, and each frame member of this basic unit is connected to the arch frame rotatably around its axis. By connecting the frame materials of the basic units whose vertices are adjacent to each other in the expansion-contraction direction to each other at the vertices so as to be rotatable about the axis in the valley direction, the rhombus can be folded to form a roof that can be opened and closed.

Since the folded plate structure with continuous diamonds is a completely expandable curved surface, it expands and contracts simultaneously in two diagonal directions in a plane, and the curvature in the span direction of the curved surface gradually decreases as it expands. Extend. On the contrary, when folded, it contracts into an arch shape having a large curvature, and the curvature, that is, the span changes according to opening and closing.

As described above, in the normal folded plate structure, the span changes with opening and closing, so that a certain orbit cannot be given at the time of deployment. In order to open and close the frame along a certain trajectory, it is necessary to keep the curvature constant at all times.In the present invention, the arch frame restrains the diagonal distance in the direction of the valley of the rhombus, and the basic unit with respect to the arch frame. Despite the expansion and contraction of the rhombus by laying it down when the frame opens and closes, or standing it up, only the diagonal distance in the direction of expansion and contraction on the plane is changed, the diagonal distance in the valley direction, that is, the span is kept constant, and the curved surface of the frame is kept constant. The frame can be expanded and contracted while keeping the curvature, and it can be opened and closed along a fixed trajectory.

〔Example〕

 The present invention will be described below with reference to the drawings illustrating an embodiment.

Folded plate roof A of this invention is a partial plan view of FIG.
The diamond shape formed from four frame materials 1 like I is 2
The roof material 3 is attached to a frame that is formed into a cylindrical curved plate shape as shown in II, and has a rhombic frame material 1 on the mountain and I on One of the diagonal lines of the rhombus shown by a chain line becomes a valley, and the rhombus contracts in a direction orthogonal to the diagonal direction in a plan view so that the rhombus can be folded.

An arch frame 2 that holds the form of the frame and a certain span is installed in the direction of the valley passing through the apex of the rhombus that adjoins at the apex in the expansion and contraction direction, and the frame of the folded plate roof A is upright regardless of whether it is open or closed. It has a structure that maintains a constant curvature. The arch frame 2 is located at a position indicated by a double broken line in FIG.
As shown in, the base of the following basic unit is connected by a straight line at the base of a triangle, and is bent and installed.

The frame structure of the folded plate roof A has two frame members 1 and 1 forming an isosceles triangle whose base is the arch frame 2 as a basic unit.

The frame material 1,1 of this basic unit is the arch frame 2
The frame members 1 and 1 of the basic units, which are rotatably connected about their axes and whose vertices are adjacent to each other in the expansion-contraction direction, are rotatably connected to each other about their trough axes at their vertices. Nodes (joints) between frame material 1 and arch frame 2
Reference numeral 4 indicates white circles in FIGS. 1-I and 4, and nodes 4 ′ between the frame members 1 and 1 of each basic unit are indicated by black circles.

When the frame is contracted, the frame members 1 and 1 of the basic unit rotate around the axis of the arch frame 2, and at the same time, the frame members 1 and 1 of the adjacent basic unit between the arch frames 2 and 2 arranged in parallel rotate with each other. By arch frame 2,2
As the distance between them is shortened, the basic unit stands up and is folded as shown in FIG.

FIG. 2 shows the case where a frame having a cross-sectional shape in contact with a single curvature cylinder is formed, but as shown in FIG. 3, the curvature changes in the circumferential direction by changing the distance of the diagonal line in the valley direction of the diamond. A frame having an arbitrary cross-sectional shape is formed.

A frame composed of the frame material 1 constitutes a folded-plate roof A by roofing the roof material 3, but the roof material 3 that is thatched on the main folded-plate roof A has a structure shown in FIG. 1 in order to follow the folding of the frame. As shown in I, a diamond-shaped slit sandwiched between the arch frames 2 and 2 arranged in parallel with each other is formed in a diagonal direction orthogonal to the arch frame 2.
3a can be inserted. A film material, a metal plate, or the like is used for the roof material 3.

Arch frames that are juxtaposed when the roofing material 3 is attached
The rhombus formed between 2 and 2 is a frame material for each of the basic units that are adjacent in the direction of expansion and contraction due to the slit 3a.
It is divided into isosceles triangles with 1 and 1 as hypotenuses, and this isosceles triangle is further divided into right triangles by vertical bisectors that are valleys when folding, and each right triangle is a frame when the basic unit is folded. By rotating the material 1 as an axis, the isosceles triangle is bent and folded symmetrically with respect to the bisector passing through the base as shown in FIG.

5 to 7 show the state of the folded plate roof A from folding to unfolding, as shown here, the slit 3a is closed when the folded plate roof A is extended, and gradually when contracted. By opening it, it follows changes in the distance between the nodes 4 and 4 that are adjacent in the valley direction.

[Advantages of the Invention] The present invention is as described above, and at the same time, rotatably connects the frame material forming the diamond shape to the arch frame holding the span, and at the same time rotatably connecting the adjacent frame materials in the expansion / contraction direction to each other. By doing so, the triangle of the basic unit consisting of two frame materials is erected, or each rhombus is folded while lying down. Therefore, while keeping the frame shape and span constant, expand and contract the frame along a fixed trajectory. It is possible to obtain a completely opened state because it can be completely stored on one side when contracted.

In addition, since the frame has a regular structure, the frame material can be standardized, and in addition to its high manufacturability and economic efficiency, the roof surface can be expanded to a flat surface, so the yield of the roof material is good and it is economical. is there.

[Brief description of drawings]

Figure 1-I is a plan view showing a part of the roof, II is its elevation view, and Figures 2 and 3 show the frame pattern.
Each I is a plan view, II 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: Folded plate roof, 1 ... Frame material, 2 ... Arch frame, 3 ... Roof material, 3a ... Slit, 4,4 '... Nodes (joints).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Eiji Matsushita Eiji Matsushita 4-51 Otamachi, Naka-ku, Yokohama, Kanagawa Kashima Construction Co., Ltd. Yokohama Branch (72) Inventor, Yoto Okudaira 1-2, Moto-Akasaka, Minato-ku, Tokyo No. 7 Kashima Construction Co., Ltd.

Claims (1)

[Claims] 1. A rhombus formed from four frame members is two.
Is a curved plate-shaped folded plate roof that can be expanded and contracted in a direction orthogonal to the diagonal direction, in which each of the rhombic frame members is a mountain, and one diagonal line of the rhombus is a valley.
An arch frame that maintains the form and span of the frame is erected in the direction of the valley that passes through the apex of the rhombus that adjoins at the apex in the direction of expansion and contraction. The frame forms two isosceles triangles with this arch frame as the base. Is used as the basic unit, and each frame member of this basic unit is rotatably connected to the arch frame around its axis. A foldable folding plate roof characterized by being connected rotatably around the axis of.