JP3521230B2 - Foldable curved body - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable curved body which is folded and stored in a thin case.

[0002]

2. Description of the Related Art If a curved body having a predetermined shape can be folded and stored in a thin case, it is convenient for various purposes. Examples of such a curved body include a parabona antenna and a portable item for outdoor activities. There is no conventional technique for folding a curved body such as a parabona antenna that is not easy to carry and storing it in a thin case.

For example, a parabona antenna used for a portable station for satellite communication using a frequency band of 1 GHz or higher has a large diameter and is made of a material such as hard metal. Since the curved shape of the antenna is held by the rigidity of the antenna itself, the antenna itself is heavy, and a supporting structure such as a tripod that supports the antenna is also required to be rigid, and the overall weight is bulky. When this is stored for transporting, the antenna is removed from the support structure such as a tripod and stored as it is, or the antenna is disassembled into several parts and stored. When the whole antenna is removed and stored, it cannot be stored below the size of the curved body. On the other hand, when the antenna is disassembled and stored, a disassembly and assembly mechanism and labor are required.

[0004] On the other hand, the sheet-like members used for carrying items during outdoor activities include cooking utensils such as pots and searchlight reflectors. Although they are desired to be miniaturized for carrying, none of the conventional ones can be folded and miniaturized.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a foldable curved body which is folded and accommodated in a thin case to reduce the labor such as transportation by reducing the size and weight, and a supporting mechanism for the curved body. An object of the present invention is to provide a foldable curved surface body that can be attached to a case.

[0006]

In order to solve the above-mentioned problems, the foldable curved surface body of the present invention has the following constitution.
That is, a flexible planar body that forms a curved surface of a predetermined shape when expanded, and a rigid annular shape that supports the outer edge of the planar body, and an outer edge support member that includes a plurality of bendable portions, A thin case for accommodating at least the outer edge supporting member and the planar body when the outer edge supporting member and the planar body are folded at the bending portion of the outer edge supporting member, and an upper lid and a bottom lid constituting the case. And a connecting member that connects each inner surface to the sheet and expands the sheet to have a predetermined curved shape when the case is opened.

Here, the connecting member may be provided with a flexible linear member so as to contribute to the storability when the case is closed.

The outer edge portion support member is formed into an annular shape, and two bending portions are located at the diameter position of the annular portion. The bending portions are connected to each other and the parabolic center for supporting the central portion of the planar body. A part support member may be provided to contribute to the ease of expanding the planar body.

A conductive mesh material is used for the sheet,
The curved shape may be a parabolic surface to contribute to the use as an antenna.

The feeding part is arranged at the focal point of the planar body, and when the case is closed, the feeding part and the supporting member for supporting the feeding part are housed in the case, which contributes to the assemblability of the antenna. You may let me.

A material having a high light reflecting property is used for the planar member,
Even if the curved surface is made into a parabolic surface and the thermal energy by condensing is supplied to the article arranged at the focal point so that the article can be ignited, it is possible to contribute to the use as an ignition device. Good.

A watertight material having a high light reflectivity is used for the planar body, and its curved surface shape is made into a substantially parabolic surface, and thermal energy by focusing is supplied to the article arranged at the substantially focal point, The article may be heat treated to contribute to its use as a cookware.

A material having a high light reflectivity is used for the planar member,
The curved shape may be a paraboloid, and the light emitted from the light emitting member arranged at the focal point may be directionally emitted to the outside to further contribute to the use of the searchlight as a reflector.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of a main part of a side surface of a folding curved surface body of the present invention when a case is opened.
[Fig. 3] is an explanatory view of a side surface main part when the case is opened and closed, and Figs. 3 and 4 are an explanatory view of a side surface main part and a plan surface main part when the case is closed. The case (10) for accommodating at least the planar body (20) is a thin substantially rectangular parallelepiped, and includes a top lid (11) and a bottom lid (12). The top lid (11) and the bottom lid (12) are configured to be openable and closable via their connecting portions (13). Each inner surface (11a) (12a)
When the case (10) is opened, the planar body (2
0) is expanded to form a predetermined curved surface, and the case (1
When the lid (0) is closed, the connecting member (40) for relaxing the sheet (20) is attached.

The sheet-like body (20) of this embodiment is made of a flexible conductive mesh material and has a paraboloidal curved surface when expanded, so that it is used as a parabona antenna. The outer edge of the sheet (20) is supported by a rigid annular outer edge support member (31) (32). Each of the outer edge support members (31) and (32) has a semi-annular shape, and a combination of the two forms a complete annular shape. Therefore, the two outer edge support members (31) and (32) are connected to each other, that is, at two positions (34) and (34) corresponding to the diameter position of the ring.
It can be refracted with. Outer edge support members (31) (32)
Is folded at its bent portions (34) and (34), the circular shape is miniaturized into a semicircular shape.

A parabolic central part supporting member for connecting the two refracting parts (34) and (34) to each other and supporting the central part of the planar body (20). (33) is attached. The sheet (20) is
The central part is appropriately attached to the central part support member (33) with threads. By supporting the planar body (20), the central portion support member (33) contributes to the easiness of expansion of the planar body (20), and the outer edge support members (31) (32) are bent to the bending portions (34) (34). ) When folded with a sheet (2
It also has a function of stably storing 0) in the case (10).

The inner surfaces (11a) (12) of the case (10)
A flexible linear body such as threads is used for the connecting member (40) for connecting the a) and the planar body (20). Connecting member (4
0) is arranged at a position (41) (41) between the upper outer edge support member (31) and a position (42) between the lower outer edge support member (32). , Sufficiently expand the folded outer edge support members (31) and (32). Further, the position (4
By being arranged in 3), the influence due to the own weight of the central portion supporting member (33) is eliminated, and the central portion supporting member (33) is arranged at a desired position. By being arranged at the positions (44) and (45) between the planar body (20), when the case (10) is opened, the planar body (20) is sufficiently expanded to a predetermined size. It is formed into a parabolic shape. The connecting members (44) and (45) arranged at a position between the planar body (20) and the planar body (20) include outer edge supporting members (31) and (32) and a central supporting member (33).
It is preferable to separate and disperse. The connecting member (40) may be appropriately provided with a rigid rod-shaped body other than the flexible linear body such as threads.

When the bottom lid (12) of the case (10) is grounded and the top lid (11) is opened at a predetermined angle, tension adjustment by a plurality of connecting members (40) allows the outer edge supporting member (3) to be adjusted.
1) With the expansion of (32), the planar body (2
The entire surface of 0) is expanded and molded into a parabolic shape. By using the rigid central portion support member (33), the shape of the central portion of the planar body (20) is accurately shaped into a parabolic surface. In the conventional portable station antenna, since a planar body made of a hard member and a stand having a rigid structure for supporting the planar body are used, the antenna is heavy and inconvenient to carry. A lightweight mesh material is used for the object (20), lightweight threads are used for the connecting member (40), and a lightweight material such as wire or plastic is used as a member for expanding and supporting the object (20) in a parabolic shape. Outer edge support members (31) and (32), and, if necessary, a central support member (33) and a joint (3) for connecting these support members.
Since only 4) is used, weight reduction can be achieved while maintaining hardness.

Here, the sheet-like body (20) is connected to the connecting member (4).
0) and is erected inside the case (10). In addition to the connecting member (40) and the case (10), the planar body (2
No member for supporting 0) is required, and it can be used as an antenna by adjusting only the grounding angle and azimuth of the bottom cover (12). A conventional portable station antenna requires a structure such as a tripod that supports the planar body (20), but according to the present invention, a case formed integrally with the planar body (20). Since (10) fulfills its function, simplification of the structure and significant weight reduction are achieved.

The bottom cover (12) of the case (10) is provided with a support rod (52) for supporting a power feeding part (51) for transmitting and receiving the radio waves received and reflected by the planar body (20). It is attached so as to be freely bendable with respect to (12). When the lid of the case (10) is opened, the support rod (52) stands, and the power feeding portion (51) at the tip thereof is arranged at the focal point of the planar body (20). When the case (10) is closed, the power feeding part (51) and the support rod (52) are also appropriately bent and stored in the case (10).

When the case (10) is closed, the sheet-like body (20) is loosened, but is guided to the inside of the case (10) because it is tied to the connecting member (40). Since the outer edge support members (31) and (32) and the central support member (33) are flat, the case (10) can be thin and highly transportable. In the conventional portable station antenna, if the planar body is not stored separately, it is not possible to use a storage case that is smaller than the size of the planar body. Even when stored, the thickness in the stored state was large. On the other hand, according to the present invention, since the sheet-like body (20) is made of a flexible mesh material, it can be stored in the thin case (10) even if it has a large curvature because it becomes thin and flat when stored. Furthermore, since the planar body (20) is folded in half during storage, the width of the case (10) can be reduced. Further, in the past, when the antenna was stored, it was necessary to divide the antenna or remove it from the stand, but according to the present invention, the upper lid (11) of the case (10).
By opening and closing the, the installation and storage of the antenna is controlled, and the workability is good.

As another embodiment, a material having high light reflectivity such as an aluminum vapor deposition sheet may be used for the planar body (20), and the curved surface shape may be a parabolic surface. Then, the planar body (2
Since the thermal energy by focusing is concentrated on the focus of 0), an ignitable article can be placed at the focus to ignite. Since it is small and lightweight and has excellent transportability, it can be used as an ignition device during outdoor activities.

Further, a watertight material such as a thin metal plate having high light reflectivity may be used for the planar body (20), and the curved surface shape may be a substantially parabolic surface. Then, the thermal energy due to the light focusing is concentrated on the article arranged near the focal point near the top of the sheet-like body (20), so that the article can be heat-treated. It is compact and lightweight and has excellent transportability, so it can be used as a cooking utensil for outdoor activities.

Further, a material having a high light reflectivity such as a metal plate may be used for the planar body (20), and the curved surface shape may be a parabolic surface. Then, it becomes possible to directionally radiate light from a light emitting member such as a light bulb arranged at the focal point to the outside, so that it can be used as a reflector of a searchlight.

[0025]

The present invention has the following effects by having the above-mentioned configuration. According to the foldable curved surface body according to claim 1, the planar body can be housed in a small thin case through the outer edge supporting member having the bending portion and the connecting member, and the upper lid of the case can be opened and closed. Since it is molded only by itself, the labor of molding / disassembling and transporting is reduced.
Furthermore, it is easy to attach a curved surface support mechanism to the case.

According to the folding curved surface body of the second aspect, since the flexible linear member is used as the connecting member, the planar member can be smoothly accommodated when the case is closed.

According to the folding curved surface body of the third aspect, the bending portion is located at the diameter position of the annular outer edge portion supporting member, and the bending portions are connected to each other and support the central portion of the planar body. Since it has a parabolic center support member,
The planar body can be stably opened and closed, and the curved surface shape when expanded can be accurately formed.

According to the foldable curved surface member of the fourth aspect, the planar member is formed of a parabolic conductive mesh material, so that it can be effectively used as a parabona antenna.

According to the foldable curved surface body of the fifth aspect, the power feeding portion disposed at the focal point of the planar body and its supporting member are installed and disassembled in conjunction with opening and closing in the case.
The antenna is easy to assemble.

According to the foldable curved surface body of the sixth aspect, since the planar body is a parabolic surface having a high light reflectivity, the ignition device is supplied by supplying thermal energy to the focal point by condensing light. Can be usefully used as

According to the foldable curved surface body of the seventh aspect, since the planar body is a substantially parabolic surface having a high light reflectivity and watertightness, thermal energy by focusing light is supplied to its approximate focus. Therefore, it can be usefully used as a cooking tool.

According to the foldable curved surface body of the eighth aspect, since the planar body is a parabolic surface which is highly reflective of light, the light emitting member is arranged at the focal point to direct the light to the outside. It can be usefully used as a searchlight that radiates to.

[Brief description of drawings]

FIG. 1 is an explanatory side view of a main part of a folding curved surface body of the present invention when a case is opened.

FIG. 2 is an explanatory view of a main part of a side surface when the case is opened and closed.

FIG. 3 is an explanatory view of a main part of a side surface when the case is closed.

FIG. 4 is an explanatory view of a main part of the same plane.

[Explanation of symbols]

10 cases 11 Top lid 11a, 12a Inner surface of lid 12 Bottom lid 13 Connection site 20 sheet 31, 32 outer edge support member 33 central support member 34 Refraction part 40 Connection member 41-45 Installation position of connecting member 51 power supply 52 Support rod

Claims (8)

(57) [Claims] 1. A flexible planar body that forms a curved surface of a predetermined shape when expanded, and a rigid ring-shaped outer edge portion that supports the outer edge portion of the planar body and that includes a plurality of bendable portions. A support member, a thin case for accommodating at least the outer edge supporting member and the planar body when the outer edge supporting member and the planar body are folded at the bending portion of the outer edge supporting member, and an upper lid forming the case. The inner surface of the bottom lid is connected to the planar body, and when the case is opened, it extends linearly to expand the planar body to form a predetermined curved surface shape and support it.
However, when closing the case, bend it in a curved shape and relax it.
A foldable curved body, comprising: a connecting member made of a linear body that guides the planar body into the case . 2. The foldable curved surface body according to claim 1, wherein the connecting member comprises a flexible linear body. 3. A parabola for supporting the central part of a planar body, wherein the outer edge supporting member is annular, and two refracting portions are located at the diameter position of the annular ring, connecting the refracting portions to each other and supporting the central portion of the planar body. The foldable curved surface body according to claim 1 or 2, further comprising a central support member. 4. The foldable curved surface body according to claim 1, wherein the planar body is made of a conductive mesh material, and the curved surface shape is a parabolic surface. 5. The foldable curved surface body according to claim 4, wherein the power feeding portion is arranged at a focal point of the planar body, and the power feeding portion and a supporting member for supporting the power feeding portion are housed in the case when the case is closed. . 6. The planar body is made of a material having a high light reflectivity, and its curved surface shape is a parabolic surface, and thermal energy by focusing is supplied to an article arranged at its focal point, The foldable curved surface body according to claim 1, which is capable of igniting an article. 7. A planar body is made of a water-tight material having a high light reflectivity, its curved shape is a substantially parabolic surface, and thermal energy by condensing is supplied to an article placed at its approximate focus. The foldable curved surface body according to claim 1, wherein the article can be heat treated. 8. The planar body is made of a material having a high light reflectivity, and its curved surface shape is a parabolic surface, and light emitted from a light emitting member arranged at the focal point can be directionally emitted to the outside. The foldable curved surface body according to claim 1.