JPH06175227A - Peacock screen device - Google Patents

Abstract

PURPOSE:To provide such a screen which is installed under a water surface and floats on a water surface at the time of projection. CONSTITUTION:This peacock screen device has floats which float on the water surface so as not to sink right under the water surface, a pair of juxtaposed revolving shafts, turning members which have driving means 2 connected to these revolving shafts, are supported by these floats and synchronously drive a pair of the juxtaposed revolving shafts and a screen member 1 which has plural sectorial blades 11 respectively having projecting surfaces, is constituted by respectively separately turnably supporting the sectorial centers of the sectorial blades 11 around each of a pair of the revolving shafts and can constitute a pair of such quarter circle parts forming one semicircle facing each other with the perpendicular held therebetween by turning each of the sectorial blades 11 around the its sectorial center in the directions opposite from each other by turning of the revolving shafts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peacock screen device which is installed under the water surface and spreads in a semicircular shape on the water surface like a peacock tail feather to form a screen.

[0002]

2. Description of the Related Art There are various types of screens for displaying images. For example, there are permanent type for theaters, temporary type for indoors,
It is commonly used to project movies or slides.

[0003]

In recent years, it has begun to be considered not only to simply project an image but also to use it more effectively. In addition to the conventional situation, a screen is installed on the surface of the water to project an image and a fountain is combined with the projected image.

If this is simply done with a screen installed on the surface of the water, it suffices to change the conventional installation place of the screen.

However, in order to effectively make an image stand out from a state where there is nothing on the water surface, it is more effective to make the screen itself stand out.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a screen which is installed under the water surface and which is projected on the water surface during projection.

[0007]

To achieve the above object, the present invention comprises a plurality of floats arranged in a plane, a pair of juxtaposed rotary shafts, and a drive means connected to these rotary shafts. A plurality of fan-shaped blades each having a projection surface and a rotating element that is driven by the float and that synchronously drives the pair of juxtaposed rotating shafts, and the fan center of these fan-shaped blades is the pair of fan-shaped blades. Each of the rotating shafts is rotatably supported separately, and the rotation of the rotating shaft causes each of the fan blades to rotate in opposite directions around the center of the fan, thereby providing a vertical line. A peacock having a pair of screen members that can form a pair of quarter circles that face each other with the semicircle therebetween.
A screen device is provided.

[0008]

The rotating element supported by the float can rotate the pair of juxtaposed rotating shafts in the opposite directions by the driving means. As a result, the fan-shaped blades supported by the respective rotary shafts rotate synchronously separately with respect to the center of the fan, and when fully rotated, a pair of 1/4 circles are formed, and both are semi-circular. Forming a screen. Since this semi-circular screen has a gap between the fan-shaped blades, even if some wind blows, it does not blow through the gap and fall.

By rotating the rotating element in the opposite direction, the screen can be gradually closed and submerged below the water surface.

[0010]

As described above, the present invention is constructed as a screen that is submerged in water and floats above water.
The image can be made to appear dramatically on the surface of the water, and the audience's interest can be greatly enhanced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the overall construction of a screen device according to the present invention. In the figure, reference numeral 1 is a screen composed of fan-shaped blades, and there are 30 fan-shaped blades, which are divided into 2 groups of 15 blades each in the center.

Each group is separately attached to two rotary shafts 22 of the drive means 2, and these rotary shafts rotate in opposite directions synchronously. Therefore, the group of fan-shaped blades attached to one rotating shaft spreads clockwise in the drawing, and the group of fan-shaped blades mounted to the other rotating shaft spreads counterclockwise in the drawing.

The drive means 2 is supported by floats 3 attached to the four corners so as not to sink. The float 3 also supports the blade storage basket 4.

FIG. 2 is a plan view of the screen device shown in FIG. As shown in this figure, the blades of the screen 1 attached to the rotary shaft 22 of the drive means 2 are sequentially arranged with a slight gap therebetween. These blades are stored in the storage basket 4 when the screen is folded.

3 (a) and 3 (b) show a connecting structure between the base of the fan blade and the rotary shaft. The fan-shaped blade 11 is fixed to a ring 21 fitted on a rotating shaft by a column 12. The ring 21 has a structure in which the one 21a connected to the blade 11 having a large final rotation angle is fixed to the rotary shaft 22 via a key and is prevented from rotating by the stopper pin 23, while the other The item 21b is a slip ring that is simply loosely fitted to the rotary shaft 22. This is because another blade is made to follow the rotation of the blade 11 having a large final rotation angle.

FIGS. 4 (a) to 4 (c) show the relationship between the blade 11 and the link 13 connecting the blades when the blade 11 is deployed, semi-deployed and closed. One end of the link 13 is pivotally supported by one blade 11, and the other end is loosely connected by inserting a pin planted in another blade into an elongated hole of the link 13.

With this structure, when the blade 11 is lifted, the other blades are also lifted by the link connecting the blades to each other as shown in FIG. 3A, and the screen is expanded. Also, if you lower the blade,
As shown in (b), the elongated holes of the links 13 approach other blades within the allowable range, and reach a position lower than the other blades as shown in (c).

When the state of FIG. 3A is viewed from above, the link 13 is drawn as shown in FIG. The blade 11 is not shown here.

FIG. 5 shows a structure for supporting the column 12 of the blade 11 when the blade 11 is housed in the housing basket 4. That is, as shown in FIG. 6 (a), the columns 12 are bent by different degrees for strength and other reasons. Accordingly, as shown in FIG. 2B, the receiving groove of the support plate 24 has different heights for each blade.

FIGS. 6 (a), (b) and (c) show the blade 1
2 shows the detailed structure of 1. The entire blade is strengthened by embossing it if necessary for lightweight metal, as shown in Fig. 2 (a) and Fig. 2 (b), which is a sectional view taken along the line A-A in Fig. 1 (a). The back surface is reinforced with the frame 14.
The frame 14 is perforated to reduce its weight as shown in FIG. The cross-sectional view of the blade 11 taken along the line BB in FIG. 3A has a structure in which the frame 13 and the support column 12 overlap each other as shown in FIG.

FIG. 7 is a plan view showing the elements for driving the screen configured as described above. As shown in the figure, the pair of rotating shafts 21 are connected to each other by gears, and when a driving force is applied from one rotating shaft, the other rotating shafts also rotate synchronously.

The driving force is given from the air motor 26 via the torque limiter 27 and the speed reduction mechanism 28. Then, the air is supplied from the compressor 51 provided in the air supply source 5 on the ground to the underwater air control unit 25 through the air hose, and further supplied to the air motor 26. In order to operate the compressor 51, a control panel 52, a power source 53
Are arranged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of an embodiment of the present invention.

2 is a plan view of the embodiment shown in FIG.

3 (a) and 3 (b) are explanatory views showing a connection structure between a base portion of a fan-shaped blade and a rotary shaft.

4 (a) to 4 (c) are explanatory views showing a relationship between the blade 11 and a link 13 connecting the blades when the blade 11 is deployed, partially deployed, and closed.

FIG. 5 is an explanatory view showing a structure for supporting the support columns 12 of the blade 11 when the blade 11 is stored in the storage basket 4.

6 (a), 6 (b) and 6 (c) are explanatory views showing the detailed structure of the blade 11. FIG.

FIG. 7 is a plan view showing elements for driving the screen in the embodiment of FIG.

[Explanation of symbols]

 1 Screen 2 Drive Means 3 Float 4 Storage Basket 5 Air Supply Source 11 Blade 12 Strut 13 Link 14 Frame 21 Ring 22 Rotating Shaft 23 Stopper Pin 24 Support Plate 25 Air Control Section 26 Air Motor 27 Torque Limiter 28 Reduction Mechanism 51 Compressor 52 Operation Panel 53 power supply

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[Procedure amendment]

[Submission date] October 13, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

4 (a) to 4 (c) are explanatory views showing the relationship between the blade 11 and the link 13 connecting the blades when the blade 11 is deployed, semi-deployed, and closed. FIG. 7D is an explanatory view of the state of FIG.

Claims (2)

[Claims] 1. A plurality of floats arranged in a plane, a pair of juxtaposed rotary shafts, and a drive means connected to these rotary shafts, and the pair of juxtaposed floats supported by the floats. A rotating element that drives the rotating shaft in a synchronous manner and a plurality of fan-shaped blades each having a projection surface, and the fan center of these fan-shaped blades is rotatably supported with respect to each of the pair of rotating shafts. By rotating the rotating shaft, the fan-shaped blades rotate in opposite directions around the center of the fan, thereby forming a pair of semicircles that face each other with a vertical line therebetween. , A peacock screen device comprising a screen member that can form a quarter circle portion of the above. 2. The peacock screen device according to claim 1, wherein the fan-shaped blade is made of lightweight metal.