JP2002013363A - Air beam shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air beam and air mat shutter allowing easy carrying-in- and-out of an article through an opening part of a building and increasing airtightness in the opening part. SOLUTION: This air beam shutter 11 is provided for elongating and shrinking a length in the vertical direction by the expansion and shrinkage in the radial direction of each air beam due to air supply and exhaust and increasing the strength and rigidity for a wind load due to an increase of an internal pressure when it expands by overlapping a plurality of air beams 12 like long bag provided to be long in the right and left directions in the vertical direction and continuously. Both of right and left side parts of the shutter are fitted into guide passages 4, 4 provided longitudinally in both of right and left side parts of the opening part 2 of the building so as to move vertically and are attached in an upper part of the opening part while the shutter is shortened to enable blocking and opening of the opening part 2 by the elongation of the shutter due to the expansion of each air beam and shortening of the shutter due to the shrinkage of each air beam.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air beam shutter, and more particularly to an air beam shutter used for opening and closing a large opening such as a hangar of an airplane.

[0002]

[Prior art]

As a shutter which can be adapted to a large wind load or the like generated in the opening with a light and simple structure and has a small opening / closing trajectory, Japanese Patent Application Laid-Open No. H11-62431 discloses 2. Description of the Related Art An air beam shutter has been proposed in which a plurality of column-shaped air beams that can be extended and retracted by suction and exhaust are arranged in parallel and continuously arranged in a lateral direction between guide rails provided at both ends.

However, the shutter still needs to be improved in the following points. Since one of the guide rails is arranged on the floor at the opening, an obstacle is apt to occur when articles are put in and out. Since the air beam shutter is formed to have a multi-column shape when inflated, it is difficult to ensure airtightness between the peripheral portion of the shutter and the outer peripheral frame for storing the shutter at the opening. When the air beam is contracted, the folding of the film tends to be irregular.

[0004] In order to improve these points, the present invention provides:
An object of the present invention is to provide an air beam shutter in which an air beam is configured to be vertically movable between guide paths provided on both left and right sides of an opening and that airtightness between a peripheral portion of the air beam and a building is easily maintained. .

[0005]

As a first means, a plurality of long bag-shaped air beams 12 which are long in the left-right direction are overlapped and continuous in the up-down direction, and an opening due to radial expansion of each air beam due to supply and exhaust is provided. An air beam shutter 11 that enables the part `` closed '' and the opening `` open '' due to the rise after contraction, and can increase the strength and rigidity against wind load by increasing the internal pressure during expansion, The left and right sides of the shutter are vertically movably fitted into guideways 4 and 4 vertically provided on the left and right sides of the building opening 2, and are mounted in the upper part of the opening with the shutter shortened. The opening 2 can be closed and opened by extending the shutter by expansion and shortening the shutter by contraction of each air beam.

As a second means, the above-mentioned first means is provided, and the building opening 2 is provided with the floor surface of the opening, side pillars 1a, 1a standing upright from the left and right sides of the floor surface, and the upper ends of these side pillars. It is formed with a beam-like portion 1b laid between them, and the groove-like guide paths 4 and 4 are vertically provided on the opposing surfaces of the two side columns, and the beam-like portion 1b has
A shutter storage chamber 5 is provided in which the upper surface and both front and rear surfaces are closed by a lower surface opening, and the upper portion of the guideway is opened in both right and left portions.
The shutter is formed so as to be vertically movable into the inside of the storage chamber and can be stored in the storage chamber in a shortened state when the shutter is fully opened. An elastic seal tube 21 that can be expanded and contracted by air supply and exhaust is provided at one of the left and right side portions of the shutter slidably fitted into the road and one of the front and rear surfaces of the upper portion of the shutter. The space between the left and right sides and the upper part of the air beam shutter 11 that closes the opening of the building, and the above-mentioned guide paths 4 and the inner surface of the lower part of the storage room can be hermetically sealed by the expansion.

As a third means, the above-mentioned first means or the second means is provided, and a flexible pneumatic pipe 19 for supply and exhaust is connected to each of the air beams 12 via an electromagnetic valve. Any air beam by opening and closing individually
It was provided to be able to supply and exhaust air to and from 12.

As a fourth means, the above-mentioned third means is provided, and two air supply / exhaust flexible pneumatic pipes 19 are provided on the left and right sides. The air pressure pipe was connected to the other flexible air pressure pipe via the electromagnetic valve, and the other end of the even-numbered air beam in the left-right direction was connected to the other flexible air pressure pipe.

Fifth means includes the second, third, or fourth means, and includes side plates from both front and rear sides of the bottom plate 14.
A support 16 is provided for standing upright, and the left and right ends of the support are vertically movably fitted into the two guide paths 4, 4, and the lowermost air beam 12 of the shutter is inserted into the support. An elevating mechanism for storing and connecting the support and vertically moving the support between the two guide paths 4 is provided.

As a sixth means, the above-mentioned third, fourth, or fifth means is provided, and a sensor 34 for detecting a wind load or a wind speed applied to the air beam is provided at an appropriate position to deal with the wind load and the like. Control means for changing the internal pressure of the air beam to the extent possible is provided.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a frame-like body forming the opening 2 of the building, and the frame-like body is a pair of left and right side columns 1a, 1a erected from both left and right portions of a base 3 buried in the floor, Beam 1b
Groove-shaped guideways 4 and 4 are vertically provided on opposing surfaces of the both-side columns, and the upper surface and both front and rear surfaces are closed by a lower surface opening in the beam-like portion 1b. Is formed into a shutter storage chamber 5 which opens into both the left and right portions. As shown in FIG. 5, a pair of front and rear guide rails 6, 6 are vertically installed via rail receivers 7, 7, respectively, in the interior of the two guide paths 4, 4, which will be described later.

The left and right sides and the upper portion of the air beam shutter 11 are slidably fitted into the two guide paths 4, 4 and the shutter storage chamber 5.

As shown in FIGS. 1 and 2 and FIGS. 6 and 7, the air beam shutter 11 is formed by vertically stacking a plurality of long bag-shaped air beams 12 which are long in the left-right direction. The vertical length of each air beam is expanded and contracted by the supply and exhaust in the radial direction due to air supply and exhaust, and it is also provided so that it can be shortened. It is possible to increase. The left and right sides of the shutter are vertically movably fitted into the guide paths 4, 4, and the upper part of the shutter is fitted into the shutter storage chamber 5.

The rail receiver 7 is intermittently provided vertically in the vertical direction of the guide path 4 via a beam 1c erected between the front and rear side columns 1a, 1a shown in FIG. The guide rail 6 is supported via the rail receiver. Then
As shown in FIG. 5, engaging brackets 13 and 13 engaged with the guide rails 6 and 6 are attached to both front and rear outer surfaces of both left and right end portions 23 of each air beam 12. It can be moved up and down linearly without swinging along. These engaging fittings project a pair of front and rear holding plates 13a, 13a from the end face of the air beam, position the guide rail 6 between the two holding plates, and bring a guide roll 13b attached to the holding plate into contact with the guide rail 6. .

The outer surfaces of both ends of each air beam 12 are fitted with a suspension chain to maintain the height position of the air beam when the opening is closed. When the lowermost air beam 12 is inflated, as shown in FIG.
Are stored in a support 16 standing upright. The support is
This is for supporting the load of a series of air beams and preventing the left and right central portions of the air beams from hanging down when the shutter is opened due to the contraction of the air beams.
For this reason, the support 16 is provided with four suspension chains 18, which are endlessly stretched between the upper and lower sprockets 17, 17 fixed to the above and below guideways 4, 4, upper and lower inner portions. 18 and is provided so as to be vertically movable by rotation of the sprocket 17. The up and down movement of the support 16 is performed by other known means,
For example, an electric winch and a wire rope may be used.

Upper and lower limit switches 20, 20 are provided above and below the guide paths 4, 4, respectively. Provided.

As shown in FIGS. 10 and 11, a flexible pneumatic pipe 19 for supplying and discharging air is connected to each air beam 12 via an electromagnetic valve (not shown). It is provided so that air can be supplied and exhausted. As shown in the figure, the flexible pneumatic pipe 19 is branched into two right and left pipes, and the connection part 24 for the odd-numbered air beam and the connection part 24 for the even-numbered air beam counted from above or below are opposite to each other. It is desirable to provide it on the side.

Since the connecting portion has a considerable thickness and width when the air beam is contracted, as a preferable example, the number of the right and left connecting portions when the air beam shutter is shortened is equal to the left and right as described above. It is preferable to provide them alternately, so that they can be contracted and stored in a well-balanced manner as shown in FIG.

As shown in FIG. 1, reference numeral 21 denotes an elastic seal tube which is slidably fitted in both the guide paths 4, 4 and one of the front and rear surfaces of the lower portion of the shutter storage chamber 5 in the both guide paths. The shutter 11 is attached to one of the right and left both sides and one of the front and rear sides of the upper part of the shutter. The gap with the inner surface of the shape part 1b can be sealed. In the illustrated example, as shown in FIG. 6, the elastic seal tube 21 is provided between the left and right portions and the upper portion on the front side of the shutter 11 and the both guide paths and the front side of the lower portion of the shutter storage chamber 5. The rear surface of the elastic seal tube vertical portion 21a on the side in contact with is formed in a continuous wave shape corresponding to a continuous waveform formed between the air tubes having a circular cross section.

Reference numeral 31 denotes a machine room arranged in the building, a blower for supplying and discharging air to and from a flexible pneumatic pipe 19 for supplying and exhausting an air beam and a seal tube 21 for sealing a shutter, and the operation and operation of the blower. A control panel 35 for controlling the elevation of the support 16 and the like. As the blower, for example, as shown in FIG. 10, a supply / discharge blower 32 that operates in response to an open / close signal of an air beam shutter,
For example, a control blower 33 that automatically pressurizes and depressurizes the air beam by increasing and decreasing the wind load in conjunction with the wind sensor and the pressure sensor 34 directly attached to the air beam 12 can be provided.

In FIG. 8, reference numeral 41 denotes a drive mechanism for rotating the suspension chain, which is housed in a suitably shaped long groove 42 formed in the base 3. The drive mechanism transmits the rotational force generated by the electric motor or the geared motor 43 from the first gearbox 44 to an arbitrary number of transmission shafts 4 connected by joints 45.
6, 46 The power is transmitted to the above-described sprocket 17 on the lower side via the second gear box 47 and the speed reducer 48. As shown in FIG. 9, the upper surface of the long groove 42 is closed by an upper lid 49 so as not to hinder the loading and unloading of articles through the opening 2.

FIGS. 10 and 11 schematically show a supply / exhaust system in the air beam shutter described above. An air supply main pipe 51 drawn from the machine room 31 is connected to a first pneumatic pipe 52 for air beam supply and exhaust in the frame 1.
And a second pneumatic pipe 53 for supply and exhaust of a seal tube. The second pneumatic pipe further branches via an electromagnetic valve and reaches each of the seal tubes 21 and 21. The first pneumatic pipe 52 rises along the inner surface of the frame 1 and is divided into the two flexible pneumatic pipes 19, 19, described above, from the middle part of the top wall of the frame in the left-right direction. Hanging down.

In the above configuration, in the state of FIG. 1, the air beam 21 is expanded and the shutter is extended, thereby closing the building opening 2. In the closed state, the seal tube 21 is in close contact with the front surface of the air beam shutter 11 by inserting the crest portion of the continuous wave surface into the gap between the air beams 12 as shown in FIG. The airtightness of the opening 2 is maintained.

When the supply / discharge blower is operated in the exhaust mode and the drive mechanism 41 is operated from the closed state, the air beam 12 and the seal tube 21 contract as shown in FIG. Support
16 Pulling up opens the shutter. Although not shown in the drawings, the exhaust from each of the air beams 12 is preferably performed sequentially from the bottom to the top, such as exhausting the lowermost air beam and contracting it, and then exhausting the second air beam from the bottom. Thereby, each air beam can be folded regularly.

When the supply / discharge blower is operated in the air supply mode while the support 16 is lowered from the open state, the state returns to the closed state in FIG. At this time, it is preferable to sequentially supply air from a higher-order air beam to a lower-order air beam for a series of air beams that have been brought into a non-pressure state by exhaust.

[0026]

According to the first aspect of the present invention, the guide paths 4, 4 for the air beam are provided vertically on both the left and right sides of the opening of the building. By providing a guideway on the floor of the opening as in the above, the guideway does not hinder the entry and exit of articles, and an air beam shutter that can be formed lightweight is provided in the upper part of the guideway. Since the opening is closed and opened by extending and contracting downward and upward, the opening and closing operation can be performed quickly.

According to the second aspect of the present invention, the gap between the left and right side portions and the upper portion of the air beam shutter and the left and right guideways and the inner surface of the beam-shaped portion can be sealed by the seal tube 21. Can be sealed.

According to the third aspect of the present invention, each air beam 12
To the flexible pneumatic piping for air supply and exhaust through an electromagnetic valve
Are connected to each other so that air can be supplied to and exhausted from an arbitrary air beam by individually opening and closing each electromagnetic valve.For example, only a part of a plurality of air beams forming an air beam shutter is left and only other air beams are left. By supplying air, it is convenient that the shutter can be partially opened or half-opened.In addition, when opening the shutter, it is necessary to sequentially exhaust each air beam from the lower one to the upper one. In addition, when the shutter is closed, air is sequentially supplied from the upper one to the lower one, so that the air beam can be easily folded or extended regularly.

According to the fourth aspect of the present invention, since two flexible pneumatic pipes are provided on the left and right sides, and the communication section through the electromagnetic valve with each air beam forming the shutter is alternately performed on the left and right sides. The height of the left and right sides when the shutter is shortened does not become uneven as in the case where the communication part is provided on one of the right and left sides of the shutter, so that the lower part of the shutter can be moved up and down with each air beam being almost horizontal it can.

According to the fifth aspect of the present invention, the shutter
11 becomes easy to open and close.

According to the sixth aspect, the rigidity and strength of the air beam shutter can be increased or decreased according to the wind load.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an air beam shutter of the present invention.

FIG. 2 is a partially cutaway front view showing an open state of a shutter of FIG. 1;

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is an enlarged view of a main part of a shutter.

FIG. 6 is a sectional view taken along line CC of FIG. 1;

FIG. 7 is a sectional view taken along line DD of FIG. 2;

FIG. 8 is a top view of a shutter driving unit.

FIG. 9 is a front view of a shutter driving unit.

FIG. 10 is an explanatory diagram of a shutter supply / exhaust system.

FIG. 11 is an explanatory diagram of a supply / exhaust system when a shutter is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame-shaped body 1a ... Side pillar 1b ... Beam-shaped part 1c ... Beam 2 ... Opening 3 ... Base 4 ... Guideway 5 ... Shutter storage room 6 ... Guide rail 7 ... Rail receiver 11 ... Air beam shutter 12 ... Air beam 13 … Engaging bracket 13a… clamping plate 13b… cide roll 14… bottom plate 15… side plate 16… support 17… sprocket 18… suspension chain 19… flexible pneumatic piping 20… limit switch 21… seal tube 21a… seal tube vertical part 21b… Horizontal section of seal tube 23 ... End of air beam in left and right direction 24 ... Connecting part 31 ... Machine room 32 ... Supply / discharge blower 33 ... Control blower 34 ... Sensor 35 ... Control panel 41 ... Drive mechanism 42 ... Long groove 43 ... Gear motor 44 ... First Gearbox 45 ... Coupling 46 ... Conduction shaft 47 ... Second gearbox 48 ... Reducer 49 ... Top lid 51 ... Main pipe 52 ... First pneumatic pipe 53 ... Second pneumatic pipe

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Blue ▲ Yagi ▼ Hayao 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Tomohisa Okuno Ginza, Chuo-ku, Tokyo No. 8-21-1, Takenaka Corporation Tokyo Main Store (72) Inventor ▲ Hiro ▼ Hidetomo Sawa 2-17-16 Kiba, Koto-ku, Tokyo Inside Ogawa Tec Co., Ltd. (72) Inventor Masatake Nakamura Tokyo 2-17-16 Kiba, Koto-ku F-term in Ogawa Tec Co., Ltd. (reference) 2E042 AA01 CA11 DA01

Claims (6)

[Claims] 1. A long bag-shaped air beam provided long in the left-right direction.
A number of 12 are vertically stacked and continuous, allowing the length of each air beam to expand and contract in the radial direction due to air supply and exhaust, making it possible to extend and shorten the length in the vertical direction. An air beam shutter 11 capable of increasing the height of the building is provided, and the right and left sides of the shutter are vertically movably fitted into guideways 4 and 4 vertically provided on the left and right sides of the building opening 2. An air beam shutter characterized in that it is mounted in the upper part of the opening with the shutter shortened, and the opening 2 can be closed and opened by extending the shutter by expanding each air beam and shortening the shutter by contracting each air beam. . 2. The building opening 2 is formed by a floor surface of the opening, side columns 1a, 1a erected from right and left of the floor surface, and a beam-like portion 1b erected between the upper ends of the both side columns. The groove-shaped guideways 4 and 4 are vertically provided on the opposing surfaces of the both-side pillars, and the upper surface and both front and rear surfaces are closed by a lower surface opening in the beam-like portion 1b, and the upper portion of the guideway is provided in the left and right portions. Shutter storage room 5 that opens
Horizontally, the left and right sides of the shutter are vertically movably fitted into the guide paths 4 and 4, and when the shutter is fully opened, the shutter is formed so as to be stored in the storage chamber in a shortened state. The supply and exhaust of air to one of the guideways and the inner surface of the lower part of the storage chamber and one of the left and right sides of the shutter slidably fitted into the guideways and one of the front and rear surfaces of the upper part of the shutter. An elastic seal tube 21 capable of inflating and contracting is provided, and the left and right sides and the upper portion of the air beam shutter 11 for closing the opening of the building due to the expansion of the seal tube, the both guide paths 4 and the lower inner surface of the storage chamber. The air beam shutter according to claim 1, wherein a gap between the shutters is formed so as to be able to be sealed. 3. An air supply / exhaust flexible pneumatic pipe 19 is connected to each of the air beams 12 via an electromagnetic valve, and is provided so as to be able to supply / exhaust an arbitrary air beam 12 by individually opening and closing each electromagnetic valve. The air beam shutter according to claim 1 or 2, wherein: 4. An air supply / exhaust flexible pneumatic pipe 19 is provided on two right and left sides, and one end of the odd-numbered air beam in the left / right direction and the one flexible pneumatic pipe are provided.
4. The air beam shutter according to claim 3, wherein the other end of the even-numbered air beam in the left-right direction and the other flexible pneumatic pipe communicate with each other via an electromagnetic valve. 5. A support 16 is provided for standing the side plates 15, 15 from both front and rear sides of the bottom plate 14, and both right and left ends of the support are fitted into the guide paths 4, 4 so as to be vertically movable. And a lifting mechanism for moving the supporting member up and down between the two guide paths 4, 4 by storing and connecting the air beam 12 at the lowest position of the shutter in the supporting body. 3. The air beam shutter according to 3 or 4. 6. A sensor for detecting a wind load or a wind velocity applied to an air beam is provided at an appropriate position, and control means for changing an internal pressure of the air beam to an extent capable of responding to the wind load or the like is provided. Item 7. The air beam shutter according to item 3, 4 or 5.