JPH04137177U - cylindrical structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cylindrical structure that is extremely lightweight while maintaining strength as a structural material. [Structure] An outer cylinder membrane 1 made of high tensile strength wire fiber material arranged in the longitudinal direction, circumferential direction, and diagonal direction, and a highly elastic and airtight membrane arranged on the inner surface of this outer cylinder membrane 1. It is a cylindrical structure composed of an inner cylindrical membrane 2 having properties and a fluid such as air that is sealed under a predetermined pressure to maintain the shapes of the outer cylindrical membrane 1 and the inner cylindrical membrane 2. [Effects] A cylindrical structure having great strength can be obtained, and the cylindrical structure can be easily made compact when not in use, and can be held in a predetermined shape again when in use.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a cylindrical structure.

0002

[Conventional technology]

Conventional lightweight structural materials include hollow or C-shaped steel and aluminum materials. It was used.

0003

[Problem that the idea aims to solve]

However, even with this type of structural material, there is a limit to how much weight it can be reduced. However, when the wall thickness was reduced, the strength of the material as a structural material could not be maintained.

0004 This invention solves the above problem, and is designed to maintain the strength as a structural material. The purpose of this invention is to provide a structure that is lightweight and lightweight.

[0005]

[Means to solve the problem]

In order to solve the above problems, the cylindrical structure of the present invention is An outer cylinder membrane made of high tensile strength wire fiber material arranged in the direction of the A highly elastic and airtight inner cylindrical membrane placed on the surface and sealed under a predetermined pressure. and a fluid that maintains the shape of the inner and outer cylindrical membranes.

[0006]

[Effect]

With the above configuration, the cylindrical structure has high tensile strength wire fiber material outer cylinder membrane and high elasticity. In addition, since it is composed of an airtight inner cylinder membrane and a sealed fluid, it can be extremely lightweight. In addition, by sealing a fluid at a predetermined pressure inside, high tensile strength wire fiber materials can be produced. is preloaded with tensile stress, which causes it to undergo tension, compression, bending, shear, and torsion. Great strength is demonstrated against any external force. Moreover, when not used as a structure can be made more compact by removing the sealed fluid, and can also be refilled with fluid. The predetermined shape is maintained by this.

[0007]

【Example】

Embodiments of the present invention will be described below based on the drawings. Fig. 1 is a partially cutaway external view of a cylindrical structure showing an embodiment of the present invention, and Fig. 2 shows the same cylindrical structure. FIG. 3 is an enlarged view of the main part of the outer cylinder membrane of the structure. As shown in Figures 1 and 2, the cylindrical structure 10 is an outer structure made of aramid fiber material arranged longitudinally, circumferentially and diagonally. It consists of a cylindrical membrane 1 and an inner cylindrical membrane 2 made of synthetic rubber arranged on the inner surface of this outer cylindrical membrane 1, The inner cylinder membrane 2 is provided with an injection port 2a that projects outward from the outer cylinder membrane 1. Air is sealed from the injection port 2a to a predetermined pressure. The cylindrical structure 10 is filled with air. When it is not sealed, it is just a flexible membrane, but it can be sealed up to a certain pressure. Once inserted, it is held in a preset shape. Here, the material of the outer cylinder membrane 1 is Aramid fiber has a tensile strength of 310 kg・f/mm² and high tensile strength (tensile strength is steel: 40 ~50kg・f/mm² , carbon fiber 250 ~ 420 kg・f/mm² , glass fiber: 220 kg・f/mm ² ), and its specific gravity is low at 1.39 (specific gravity is steel: 7.85, carbon fiber 1.80, glass Fiber 2.54), with unparalleled high impact strength, heat resistance, chemical resistance, and excellent fatigue strength. have In addition, the outer cylinder membrane 1 has these materials on the outside of the aramid fiber material in the three directions. A presser fiber material 3 is wound around the inner cylinder membrane 2 to hold it down. A closing valve 4 is provided.

[0008] With the above configuration, the cylindrical structure 10 mainly consists of an outer cylindrical membrane 1 made of aramid fiber material. and an inner cylinder membrane 2 made of synthetic rubber, it is extremely lightweight and has no internal space. By enclosing air at a constant pressure, the outer material is made of aramid fiber material with high tensile strength. A tensile stress is applied to the cylindrical membrane 1 in advance, which causes it to undergo tension, compression, bending, and shearing. It exhibits great strength against external forces such as shearing and torsion. Moreover, as a structure When not in use, it can be made compact by removing air, making it easy to store and transport. It is convenient and can be shaped into a specific shape by refilling with air. .

[0009] Next, the joint structure of the cylindrical structure will be explained based on FIGS. 3 and 4. In Fig. 3, 11 is a lightweight joint made of aluminum, and an uneven part 12 is formed on the inner surface. It has a cylindrical opening 13. The cylindrical opening 13 of this lightweight joint 11 has a cylindrical shape before being pressurized. By inserting the end of the structure 10 and applying pressure, the outer cylinder membrane 1 is pressed against the uneven portion 12. The cylindrical structure 10 is engaged and fixed to the lightweight joint 11 by this frictional force. This lightweight fitting Various forces such as tension, compression, bending, shearing, and torsion are applied to the cylindrical structure by hand11. can be communicated. In addition, as shown in FIG. 3, the connection between the end of the cylindrical structure 10 and the lightweight joint 11 is The gap is filled with a packing material 14 such as urethane rubber. In addition, lightweight fittings 11 The material is not limited to aluminum, but also synthetic resin and Kepler (aramid). (made of fiber material and synthetic resin) may also be used.

0010 Additionally, Figure 4 shows a T-shaped lightweight joint 15 in which the above-mentioned lightweight joint structure is used. This T-shaped lightweight joint 15 has, for example, a through hole 16 penetrated in the vertical direction and a through hole 16 opened laterally. A side hole 17 is provided, each hole 16, 17 having a structure similar to that of the cylindrical opening 13. An uneven portion 12 is formed. According to this, the cylindrical structures 10 can be easily connected to each other. can do. In this example, a T-shaped one is shown, but a cross-shaped one or multiple connections can be used. It is also possible to connect the cylindrical structures 10 using a structure having a section.

[0011] A specific example using the cylindrical structure 10 described above will be described below. First, based on FIGS. 5 to 8, a case where the present invention is applied to a shaft support will be described. As shown in FIG. and a plurality of rod-shaped members 23 that connect these horseshoe-shaped members 22 at predetermined intervals. It is composed of

0012 Of course, these horseshoe-shaped members 22 and rod-shaped members 23 have linear cylindrical structures. The body 10A and the curved cylindrical structure 10B are connected to a T-shaped lightweight joint 15 and a cross-shaped lightweight joint 15. Assembled by 18 hands.

[0013] When assembling this shaft support 21, it is necessary to install it outside the shaft (for example, in a factory). ), the predetermined length is unitized. For example, as shown in Figure 6, the horseshoe shape Two consecutive sets of rod-shaped members 23 are added to one side of each lightweight joint 15, 18 of member 22. This is what I connected it to.

[0014] Next, as shown in Figure 7, the above-mentioned plurality of units are connected in the mine shaft. Next, the legs 24 are attached to the ends of the horseshoe-shaped member 22 to a predetermined length. The leg material 24 is fixed at a predetermined location, and a wall material (shown in FIG. 5) 25 is attached to the outer surface of the leg material 24.

[0015] As shown in FIG. 8, in this state, a cylinder ( If compressed air is sealed using a compressor (26), it is possible to You can assemble maintenance equipment 21.

[0016] In this way, since the cylindrical structure 10 was used as the framework member of the shaft support 21, For example, unlike when using wood, steel frames, etc., transportation and installation work are extremely easy. It can be done easily and quickly.

[0017] Next, based on Figures 9 to 13, we will discuss how to use the We will explain the case where it is applied to a temporary fence in the snow and cold. As shown in FIG. 9, the frame structure of this snow/cold temporary enclosure 31 consists of a mountain-shaped roof member 32 and pillars. Each of these members 32 and 33 is a linear cylindrical structure. 10 is assembled by a T-shaped lightweight joint 15 and a cross-shaped lightweight joint 18.

[0018] When assembling this snow/cold temporary enclosure 31, first, as shown in Figure 10, In a state where each member 32, 33 is disassembled, that is, a large number of cylindrical structures 10 are transport it to the installation location.

[0019] Next, as shown in FIG. 10, using the cylindrical structure 10 and each joint 15, After configuring the root member 32 and column member 33 and connecting them to each other, the leg members (anchor members) are Install car parts) 34.

[0020] Next, as shown in Fig. 12, reinforcing material 35 and exterior material 37 are removed only on roof member 32. At the same time, a cylinder (a compressor may be used) is attached to the cylindrical structure 10 of the roof member 32. 39, compressed air is injected to complete the roof member 32.

[0021] Next, as shown in FIG. 13, the cylindrical structure 10 of the column member 33 is also pressurized by the cylinder 39. After injecting compressed air and starting up, reinforcing material 36 is also put in the column member 33, and the exterior material 37 By fixing the lower end of the snow and cold temporary enclosure 31 can be obtained.

[0022] In this way, according to the snow and cold temporary enclosure 31 using the cylindrical structure 10, as in the conventional case, Unlike steel structures, transportation, assembly, and disassembly are extremely easy and quick. be able to.

[0023]

[Effect of the idea]

As described above, according to the configuration of the present invention, it is ultra-lightweight and can withstand tension, compression, bending, and shear. It is possible to obtain a cylindrical structure that has great strength against external forces such as cutting and torsion. Moreover, when not in use, the cylindrical structure can be easily compacted by removing the fluid. In addition, when used, a structure of a predetermined shape can be created simply by filling it with fluid. easily obtained.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway external view of a cylindrical structure according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the outer cylinder membrane of the cylindrical structure in the same example.

FIG. 3 is a partially cutaway schematic diagram of the joint structure in the same embodiment.

FIG. 4 is a partially cutaway schematic diagram of the joint structure in the same embodiment.

FIG. 5 is a schematic perspective view of a shaft support using the cylindrical structure of the present invention.

FIG. 6 is a schematic perspective view showing the procedure for assembling the shaft support.

FIG. 7 is a schematic perspective view showing the procedure for assembling the shaft support.

FIG. 8 is a schematic perspective view showing the procedure for assembling the shaft support.

FIG. 9 is a schematic perspective view of a temporary snow fence using the cylindrical structure of the present invention.

FIG. 10 is a schematic perspective view showing the assembly procedure of the snow and cold temporary enclosure.

FIG. 11 is a schematic perspective view showing the assembly procedure of the snow/cold temporary enclosure.

FIG. 12 is a schematic perspective view showing the assembly procedure of the snow and cold temporary enclosure.

FIG. 13 is a schematic perspective view showing the assembly procedure of the snow and cold temporary enclosure.

[Explanation of symbols]

1 Outer cylinder membrane 2 Inner cylinder membrane 2a Inlet 10 Cylindrical structure 11 Lightweight fittings

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator: Takashi Ashida 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture Within Hitachi Zosen Corporation (72) Creator Teruhisa Ishihara 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture Within Hitachi Zosen Corporation (72) Creator Hideki Furubayashi 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture Within Hitachi Zosen Corporation (72) Creator Sumio Takeda 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture Within Hitachi Zosen Corporation

Claims (1)

[Scope of utility model registration request] Claim 1: An outer cylinder membrane formed of high tensile strength wire fiber material arranged in the longitudinal direction, circumferential direction, and diagonal direction, and a highly elastic and airtight membrane arranged on the inner surface of the outer cylinder membrane. A cylindrical structure comprising an inner cylindrical membrane having properties and a fluid sealed at a predetermined pressure to maintain the shape of the inner and outer cylindrical membranes.