JP2003316363A - Hermetic sealing material formed by connecting projecting shape bodies by cavity body and vacuum body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of poor production efficiency of a vacuum body formed by using continuous projecting shape bodies closed at their rear surfaces as hermetic sealing materials as such vacuum body has many points to be evacuated. <P>SOLUTION: The vacuum body 1 is formed by using a rigid sheet material, by integrally molding the cavity body 7 for connecting a plurality of the projecting shape bodies 3 having an approximately semi-circular arcuate shape in section and a slender shape to each other, by using the hermetic sealing material 2 in which a plurality of the projecting shape bodies 3 configure one space to a front side, by superposing a flat hermetic sealing material 4 on the rear surface side, and by hermetically sealing the circumference to form a vacuum in the inside. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an airtight material and a vacuum body used for soundproofing and heat insulation.

[0002]

2. Description of the Related Art A vacuum body in which a continuous convex body is used as an airtight material and a flat airtight material is adhered to the back surface is disclosed in Japanese Patent Application No. 2002-04.
However, a large amount of work is required because it is necessary to evacuate each convex body in order to create a vacuum in the independent convex body.

[0003]

A problem to be solved is that a vacuum body using a continuous convex shape body whose back surface is closed as a hermetic material has many vacuuming points, and thus has poor production efficiency. .

[0004]

In order to solve the above-mentioned problems, the present invention forms a hollow body for connecting continuous convex bodies, and makes each convex body into one continuous space to form a vacuum. Be able to pull from one place.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A sheet of metal or plastic is used as an airtight material, and a plurality of elongated convex bodies having a substantially semi-circular cross section are continuously molded by pressing or injection, and a small cavity is formed between the convex bodies. The body is integrally molded and a plurality of convex bodies are connected to form a single space. The number of hollow bodies is related to the time required for vacuuming, and increases or decreases according to the number of convex shaped bodies.

On the back side, a flat plate is used in addition to the air-tight material having the same shape and convex shape as the front air-tight material. When using plastic, the vacuum layer surface is metal-plated if necessary. The single width of the convex body can be several millimeters to several centimeters, and the length can have a desired dimension.

For joining with the airtight material on the back side, welding, brazing, heat sealing, bonding or the like is used. The degree of vacuum shall be the initial vacuum pressure that does not transmit sound even when the vacuum pressure decreases over time.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 (a) is an external perspective view showing a partial cross section, and FIG. 1 (b) shows a cross section of a portion A in FIG. 1 (a). The vacuum body 1 has an elongated shape and its cross section is approximately a semicircle. A hollow body 7 in which a plurality of arc-shaped convex bodies 3 are formed into a continuous shape and the convex bodies 3 are made into one space.
A flat airtight material 4 having a vacuum suction hole 10 is arranged on the bottom surface of the airtight material 2 press-molded at a predetermined interval, and a flat surface portion 5 extending to the outer peripheral portion is airtightly joined to form a bottom surface of the convex body 3. Necessary points 9 are joined to the back side airtight material 4, and the inside 8 of the convex shape body 3 is evacuated.

The convex body 3 is used as a curved surface that balances the force by which the bottom surface expands due to the pressing of the curved surface by the atmospheric pressure and the force by which the bottom surface of the back side airtight material 4 narrows. Ribs 6 are integrally formed on the convex shape body 3 toward the inside of the convex shape so as not to be easily deformed by a local load or the like. Convex body 3
The space between is set to a dimension required for joining with the back side airtight material, and is narrowed when not necessary to reduce sound transmission to the back side.

FIG. 1 (c) shows a cross section of the portion B in FIG. 1 (a), in which a small hollow body 28 is integrally molded in the long side portion of the adjacent convex shaped body 3, and the space of the adjacent convex shaped body 3 is formed. It shows a state in which 8 are connected.

In FIG. 2 (a), a plurality of convex shaped bodies 13 which are one space in a hollow body 14 are made into one block 12,
Airtight material 1 in which a plurality of blocks are integrated at intervals 15
It is 2.

In FIG. 2B, the airtight material 17 of FIG. 2A is used as the front airtight material, and the block 2 similar to the front airtight material 12 is used.
Back side airtight material 18 formed in the direction orthogonal to the concave side of 6, 27
Of the blocks 20, 21, 2, on the front side
2, 23, 24, 25 and the back side blocks 26, 27 are overlapped so as to form a continuous space, and the peripheral flat surface portion 19 is hermetically sealed to create a vacuum inside.
Is.

The back side airtight member 18 has the same size as the front side airtight member 17, and blocks 20, 21, 22 of the front side airtight member 17 are provided.
A block 26 that connects 23 and the same 22, 23, 24,
A block 27 that connects 25 is formed on the back side airtight material 18.

FIG. 2C is a cross-sectional view of the C portion of the vacuum body 16 of FIG. 2B, which shows a block 25 connected by a hollow body 28.
The flat surface portion 30 of the back side airtight material is overlapped with the bottom portion of the convex shaped body 29 for some of the convex shaped bodies 29 of the blocks 24, 25.
Convex portion 31 adjacent to the flat portion 27 and the block 24 between
The bottom portion of the convex shaped body 32 of the block 27 formed in the orthogonal direction is in contact with the bottom portion of the block 24, 25 and the block 2.
The convex body 7 has a continuous space. The direction of the convex body of the back side block may be the same direction as the front side block, or may be different in size from the front side block.

[0015]

EFFECTS OF THE INVENTION A plurality of convex shaped bodies which are made into an integral space by a hollow body can be vacuumed at one place when the vacuum body is manufactured even if the airtight material on the back side is flat. In addition, even in a vacuum body using a plurality of convex body blocks, the inside of the convex body can be evacuated by evacuating at one place regardless of the size of the vacuum body by making the space of the convex body one Therefore, the production efficiency can be improved and the cost can be reduced accordingly.

An airtight material obtained by molding a plurality of convex shaped bodies connected to each other by a hollow body into one block, and a plurality of blocks are molded, is formed by one mold regardless of the desired size of the vacuum body. It is economical because it can be manufactured with.

[Brief description of drawings]

FIG. 1 is an external perspective view of a vacuum body with a partial cross section and a partial cross-sectional view of a convex body.

FIG. 2 is an external perspective view of an airtight material and a vacuum body composed of a plurality of convex shaped blocks.

[Explanation of symbols]

1: Vacuum body 2: Airtight material 3:
Convex body 4: Airtight material 6: Rib 7:
Cavity 10: Vacuum hole 11: Airtight material 1
2: Block 13: Convex body 14: Hollow body 1
6: Vacuum body 17: Front airtight material 18: Back airtight material 1
9: plane part 20: block 28: hollow body 2
9: Convex body

Claims (2)

[Claims] 1. A plurality of elongated convex-shaped bodies each having a substantially semi-circular cross section and a hollow body connecting the convex-shaped bodies are integrally formed by using a hard sheet material, and the plurality of convex-shaped bodies form one space. Airtight material used for the vacuum body. 2. A plurality of convex bodies connected by a hollow body according to claim 1 are used as one block, and a front side airtight material formed by molding the plurality of blocks and a block similar to the front side airtight material block are formed on the back side. A vacuum body in which the airtight materials are opposed to each other, and the convex-shaped bodies of the front and back airtight materials are stacked so that the concave sides are continuous, and the periphery of the airtight material is sealed to create a vacuum inside the convex-shaped bodies.