JPH08209850A - Variable ceiling structure - Google Patents

Abstract

(57) [Abstract] [Purpose] A variable ceiling that facilitates effective use of the internal space by easily forming a space of arbitrary shape and volume inside the large building by changing the shape of the ceiling surface of the film body, corresponding to the purpose of use. Provide structure. [Structure] A wire rope wound around a winch fixed to a ceiling 13 of a building is connected to a ball joint 4.
The tubular frame 1 is pin-connected to the ball joint 4, and the curtain member 3 having various characteristics such as translucency, sound absorption, and air permeability is stretched between the tubular frames 1 adjacent to each other and orthogonal to each other. .
By changing the winding length of the wire rope by the winch, the ceiling surface having an arbitrary shape can be formed by the curtain member 3 and the space portion having an arbitrary volume can be formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to gymnasiums, sports,
The present invention relates to a variable ceiling structure capable of easily adjusting the volume of a large space inside a large building such as a multipurpose dome for the purpose of holding various events such as music and theater.

[0002]

2. Description of the Related Art Large buildings such as gymnasiums and multipurpose domes have a large space inside. Various events such as sports, concerts, lectures, exhibitions, and theaters are held in this large building. In the case of indoor baseball, it is better to have a high ceiling, but in concerts and lectures, if the ceiling is too high, the acoustic effect is poor. Further, in the case of an event such as an exhibition, it is necessary to make the internal space have an appropriate volume according to the content and pattern of the exhibited product. Therefore, in the case of these large buildings, various means for adjusting the internal volume and the like have been conventionally used.

FIG. 8 shows one of the conventional techniques for changing the spatial volume of the arena of a dome-shaped building. This building has a domed ceiling 18 and surrounding walls 16
And the first and second floor seats 17 etc., and the ceiling 18
In this case, a large number of ring-shaped members 19 having different sizes are laminated and arranged with appropriate gaps. The space volume is changed by moving the ring-shaped member 19 up and down.

On the other hand, as a known technique, Japanese Patent Laid-Open No. 6-578 is known.
49, JP-A-6-193291 and JP-A-6-193292. JP-A-6-5
No. 7849, “Sound Absorbing Device for Large Space Building”, suspends multiple annular sound absorbing strips connected to each other at the central part and the peripheral part of the ceiling of a dome-shaped building, and elevates or lowers the curtain piece. The ceiling surface is visually and acoustically variable so that it can be removed. The "multipurpose stadium" of Japanese Patent Laid-Open No. 6-193291 discloses a floor for a building, which is detachably provided with an isolation wall that divides the floor into a plurality of areas. The curtain is connected, and the curtain and the isolation wall connected to the curtain are moved up and down by an elevating device to partition the interior space of the building. In addition, JP-A-6
In "Large building with space partition means" of Japanese Patent Laid-Open No. 193292, a large number of ceiling units are hung by a large number of hanging members, and the hanging members are extended or taken out to horizontally or vertically dispose the ceiling units. A space defined by a proper volume is formed between the floor surface and the ceiling by supporting and appropriately combining these ceiling units. The space inside the building can be partitioned into appropriate frames without providing a fixed partition wall.

[0005]

In the case of the ceiling structure shown in FIG. 8, the ring-shaped member 1 having different sizes as described above.
9 is moved up and down to change the spatial volume, but when each ring-shaped member 19 is moved up and down without permission, a gap is created between them and the sense of unity is lost. On the other hand, in order to maintain a sense of unity, the range of vertical movement is limited, and only a fixed space can be dealt with. In addition, each ring-shaped member 19 is rigid in itself, and in order to support it, the roof frame 20 that is heavy on the ceiling 18 side is supported.
Therefore, there is a problem that the installation cost becomes high.

On the other hand, in the known art of Japanese Patent Laid-Open No. 6-57849, the sound absorbing band piece is formed of a multi-ring integral structure, so that it can only move up and down as a whole. Therefore, it is difficult to form a space having an arbitrary shape. Also,
The present technology has one purpose to change the spatial volume, but its main purpose is to adjust the acoustic characteristics according to the purpose of use by raising and lowering the sound absorbing band piece. The "multi-purpose stadium" disclosed in Japanese Patent Laid-Open No. 6-193291 divides the space by arranging isolation walls, and does not adjust the volume of the entire space to a large or small size. The "large building" disclosed in Japanese Patent Laid-Open No. 6-193292 also forms a partition space having a desired volume inside the building, and adjusts the volume of the entire space inside the building according to the purpose. is not. Moreover, the partition space is a box-shaped space and cannot form a space of arbitrary shape and volume.

The present invention was devised in view of the above circumstances, and unlike the prior art, it is possible to easily form a space having an appropriate shape and volume having a ceiling surface with no gap and a sense of unity. To provide a variable ceiling structure that is capable of being constructed, is lightweight, has good followability to shape changes, and has characteristics such as translucency, sound absorption, breathability, fire resistance, and gloss. With the goal.

[0008]

In order to achieve the above object, the present invention covers the inner surface of the ceiling of a large building having a large space inside and is supported by the ceiling side so as to be able to move up and down. A ceiling structure having a plurality of tubular frame bodies, which are pin-coupled to ball joints at both ends and are arranged orthogonally to each other, and a curtain stretched between adjacent tubular frame bodies. A variable ceiling structure is provided which is provided with a member and an elevating means installed between the ball joint and the ceiling. More specifically, the elevating means comprises a wire connected to the ball joint via a cushioning means and a winch for winding or sending the wire, and the curtain member has a light-transmitting property, a sound absorbing property, and a ventilation property. Characteristics, fire resistance, glossiness, or one or a combination thereof.

[0009]

Since both ends of the tubular frame are pin-connected to the ball joint, it is possible to dispose the upper and lower ends, the left and right positions, and the front and rear positions of the both ends at different positions. The curtain member, which is stretched by the elevating means to the same or different upper and lower positions depending on the purpose, moves accordingly to form a ceiling surface having a desired shape. Thereby, the shape and volume of the space formed on the lower side of the ceiling surface can be made into a desired shape. Further, when the elevating means has the buffering means, the impact force due to the change of the film body is alleviated, and the ascending / descending is smoothly performed. In addition, the curtain member is transparent, sound absorbing, breathable, fire resistant, glossy, or 1
By using a material composed of one or a combination thereof, respective characteristics can be exhibited.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a film body forming a variable ceiling structure of the present invention, FIG. 2 is an enlarged partial plan view showing a coupled state of a tubular member and a ball joint in FIG. 1, and FIG. 3 is a connection of respective constituent elements. FIG. 4 to FIG. 7 are enlarged partial axial sectional views showing details of the structure, and FIGS. 4 to 7 are schematic vertical sectional views of the building showing the formation state of the variable space according to the present embodiment.

As shown in FIGS. 1 to 3, the film body forming the ceiling structure of this embodiment has a plurality of tubular frame bodies which are pinned at both ends to the ball joints 4 and are arranged orthogonally to each other. 1, a curtain member 2 stretched between four adjacent tubular frame bodies 1, 1, 1, 1 respectively, and an elevating means 3 shown in FIG. 3 and the like.

The ball joint 4 is, for example, a spherical case 5.
And a ball-shaped member 6 and the like which are spherically supported by this.

The tubular frame 1 is made of an elongated hollow pipe,
Both ends thereof are pin-connected to the ball joint 4. Although various known techniques are adopted as the pin coupling type, for example, as shown in FIG. 3, the universal type in which pins 7 and 8 orthogonal to each other are connected to the ball-shaped member 6 side is employed. With the above structure, the tubular frame 1 is supported on the ball joint 4 side so as to be swingable in a free direction as shown by the chain double-dashed line in FIG.

As shown in FIGS. 1 and 2, the curtain member 2 is fixed to the tubular frame body 1 by a string 9 or the like, and is stretched between the adjacent tubular frame bodies 1, 1, 1, 1 as described above. It In the drawing, a mesh-like curtain body is appropriately formed so as to improve the air permeability, but of course the invention is not limited to this. That is, as the curtain member 2, for example, a composite body in which a glass fiber is coated with a fluororesin and a woven cloth is further laminated on the surface thereof, a fireproof polyester curtain cloth, or the like is adopted. Of course, it is not limited to these.

The elevating means 3 winds the wire rope 10 which is connected to the ball-shaped member 6 of the ball joint 4 via the buffer means 12 at its lower end side, and the wire rope 10.
Alternatively, the winch 11 is sent out. The connecting portion of the wire rope 10 with the buffer means 12 and the winch 11 is formed by ring coupling with a degree of freedom. The cushioning means 12 is of a known technique, and for example, a closed air damper is used. The winch 11 is also known, and as shown in FIG. 4, substantially the same number as the ball joints 4 are arranged over substantially the entire surface of the ceiling 13. The elevating means 3 can be centrally controlled at one place by ordinary electric means.

Next, a method for forming the arbitrary space portion 14 (FIG. 4) using the film body of this embodiment will be described. FIG.
As shown in FIG. 1, the large building 15 is composed of a ceiling 13, a peripheral wall 16, a viewing seat 17, and the like, and a large space is formed inside thereof. As mentioned above, the winch 1 is attached to the ceiling 13.
Wire rope 1 fixed to 1 and connected to winch 11
0 is connected to each ball joint 4 via the buffer means 12. When the length of the wire rope 10 to be wound up is adjusted by each winch 11, the ball joint 4 is positioned at a position corresponding to it. In the case of FIG. 4, the winding length of the wire rope 10 of the winch 11 on the left and right ends in the figure is minimized and the winding of the central portion is maximized. As described above, the film body formed by the tubular frame body 1 and the curtain member 2 has a shape like an inverted bowl, and the space portion 14 is formed thereunder.

In FIG. 5, the winding length of the winch 11 on the left and right ends of the drawing is set to an appropriate length, and the winding length is gradually increased from this portion toward the central portion. As a result, a space 14a that is slightly larger than that in FIG. 4 is formed.

In FIG. 6, the winding length by the winches 11 on the left and right ends of the drawing is maximized and the winding length at the center is minimized. Thereby, the space portion 14b having the concave ceiling surface is formed.

FIG. 7 shows the case where the wire rope 10 is wound up by all the winches 11, and shows the case where the largest space 14c is formed. In this case, the film body is arranged at a position substantially along the inner surface of the ceiling 13 as illustrated.

As described above, by changing the position of the ball joint 4 wound by the winch 11, a desired ceiling structure can be formed, and a space portion 14 having a desired volume can be formed. . On the other hand, as described above, since the curtain member 2 can be formed from those having various characteristics, the curtain member 2 exhibiting the characteristics according to the content of the entertainment held inside the space 14 or the like.
To adopt. For example, when a concert is held in the space 14, the curtain member 2 made of a material having good acoustic characteristics is used. Further, in the case of an event such as a show, it is desirable to use the curtain member 2 having translucency and gloss. Further, in the embodiment of FIGS. 4 to 7, the film body is formed in a curved shape with relatively no unevenness. However, by changing the winding length of the adjacent wire ropes 10 to a short length alternately, a wave is formed. It can be formed into a mold, which allows partitioning of a large space.

[0021]

According to the present invention, the following remarkable effects are obtained. 1) Spaces of various shapes and volumes can be formed without making a large gap. Further, since the curtain members are connected to each other through the tubular frame, it is possible to form a ceiling surface with a sense of unity. 2) The film body is composed of a tubular frame body connected to a ball joint and a unit type consisting of a set of a curtain member and an elevating means. By connecting these units to each other and assembling them, a desired ceiling surface can be obtained. Since it can be formed, the workability is extremely good. 3) Since each component is relatively lightweight, the workability is improved, and the load applied to the roof frame of the building can be reduced, so a heavy roof frame is not required. 4) Since the tubular frame is pin-connected to the ball joint, the shape can be changed in any direction, and the ceiling surface having a desired shape can be easily and smoothly formed. 5) By adopting the buffering means, there is little shock when the shape changes, and the followability is good. 6) By setting the material of the curtain member to one that has characteristics suited to the purpose of use of the space, a ceiling surface having characteristics such as translucency, sound absorption, breathability, fire resistance, and glossiness can be arbitrarily formed. You can do it.

[Brief description of drawings]

FIG. 1 is a partial plan view showing an embodiment of a film body of the present invention.

FIG. 2 is a partially enlarged plan view showing a structure around a connecting portion between a tubular frame body and a ball joint of the present embodiment.

FIG. 3 is an enlarged partial cross-sectional view showing an embodiment of a pin coupling structure of a tubular frame and a ball joint.

FIG. 4 is a schematic vertical cross-sectional view of a building for explaining a method for forming a space portion having a normal volume with the film body according to the present embodiment.

FIG. 5 is a schematic vertical cross-sectional view of a building for explaining a method of forming a relatively wide space portion by the film body according to the present embodiment.

FIG. 6 is a schematic vertical cross-sectional view of a building for explaining a method of forming a relatively narrow space portion by the film body according to the present embodiment.

FIG. 7 is a schematic vertical cross-sectional view of the building for explaining the method of forming the widest space portion by the film body according to the present embodiment.

FIG. 8 is a vertical cross-sectional view of a conventional dome-shaped building having a ceiling surface with excellent sound absorption characteristics.

[Explanation of symbols]

 1 Tubular Frame 2 Curtain Member 3 Lifting Means 4 Ball Joint 5 Spherical Case 6 Ball Member 7 Pins 8 Pins 9 String 10 Wire Rope 11 Winch 12 Buffer Means 13 Ceiling 14 Space 14a Space 14b Space 14c Space 15 Large Building 16 Peripheral wall 17 Seats

Claims (3)

[Claims] 1. A ceiling structure having a film body that covers an inner surface of a ceiling of a large-scale building having a large space inside and is vertically supported on the ceiling side, wherein the film body has ball joints at both ends. A plurality of tubular frame members which are pin-coupled to each other and arranged orthogonally to each other, a curtain member which is stretched between the adjacent tubular frame members, and an elevating means which is provided between the ball joint and the ceiling. Variable ceiling structure characterized by being provided. 2. The variable ceiling structure according to claim 1, wherein the elevating means comprises a wire connected to the ball joint via a cushioning means, and a winch for winding or sending out the wire. 3. The variable ceiling structure according to claim 1, wherein the curtain member has all or one of translucency, sound absorption, breathability, fire resistance, and glossiness, or a combination thereof.