JPH07207810A - Daylighting and shading device for ceiling - Google Patents

Abstract

PURPOSE:To make adjustable both lighting and shielding freely by pivoting a plurality of slewing blades between two frame members whose radii are different from each other and slewing these slewing blades simultaneously and halting the slewing operations with one drive means. CONSTITUTION:A daylighting and shielding device 1 incorporates concentrically ring- shaped frame members 11 and 12 whose radii are different from each other while many slewing boards 13 are installed radiately between the frame members. The slewing boards 13 are designed to be a sectional blade type formed in such a shape that they may be wider and slender as they run toward the outer periphery and pivotally turned, centering on the shaft in the radius direction. A movable frame 14 is installed to an inner frame 12 where a transmission means 15, which transmits a turning motion to the slewing boards 13 with the movement of the frame, is installed for every slewing board 13. This construction makes it possible to adjust the operation of this device freely or more particularly to create a shading state by turning the stewing boards 13 horizontally, bringing the edges 13a of the boards in contact with those of the adjacent boards and to create a daylighting state which adopts natural light to a satisfactory extent by turning the slewing boards 13 from a slanted state to an erected state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a daylight shielding device applied to the ceiling of a large facility such as a multipurpose event hall.

[0002]

2. Description of the Related Art As a conventional ceiling lighting device, there is one in which the amount of light is adjusted by rotating a louver plate and is integrated into the ceiling so that the presence of the lighting is not felt (for example, a real one). (Kaisho 55-94317). In this device, a large number of arrayed louver plates are opened and closed at the same time, but they are compact and give a sense of unity to the ceiling without a conspicuous presence.

[0003]

However, the conventional ceiling lighting device is of a small scale, and is large-scaled in which large-scale facilities such as a multipurpose event hall are driven to rotate and use natural light for setting up natural light. It was not sufficient as a daylight blocking mechanism. In addition, the rectangular shape is the mainstream, and the curved shape, the circular shape, the polygonal shape, etc.
The design was not fully considered.

The present invention has been made in view of the above-mentioned prior art, and can utilize natural light for event construction in a large-scale facility such as a multipurpose event hall. It operates reliably by remote control and is robust. It is an object of the present invention to provide a ceiling daylight shading device which has no malfunction, requires no maintenance, and can be manufactured into various shapes and has an excellent design.

[0005]

A ceiling daylighting / shielding device of the present invention which achieves the above object is provided with at least two frame members incorporated in a daylighting section of the ceiling and pivotally supported between the two frame members. A plurality of swivel plates that can be continuously adjusted from the light-shielded state to the daylighting state, a movable frame that is adjacent to at least one of the two frame members and is reciprocably guided in a parallel state, and the movable frame. And at least one drive source for reciprocating the movable frame, and a transmission means for transmitting power to the reciprocating movement of the movable frame to the revolving movement of the revolving plate.

[0006]

When the moving frame is reciprocally driven by the driving source, the reciprocating movement of the moving frame is converted into the swivel motion of each swivel plate by the transmission means, so that the plural swivel plates swivel all at once, and the light shielding state is set. The lighting state is continuously switched.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 to 3 show an embodiment of the present invention. The circular daylight shading device 1 of the present embodiment is used for the ceiling of a multipurpose event hall. Figure 1
1 is a perspective view of a circular light collecting and shielding device for a ceiling according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of a portion II in FIG. 1, and FIG.
FIG. 3 is an enlarged perspective view of section III in FIG.

As shown in FIG. 1, ring-shaped frame members 11 and 12 having different radii are concentrically incorporated in the daylighting portion of the ceiling, and two frame members 11 and 12 are also provided.
A large number of swivel plates 13 are radially arranged between them.
The swivel plate 13 is a segmented wing shape in the shape of an elongated trapezoid whose width increases toward the outer peripheral side, and each is rotatably supported about a radial axis.

Therefore, by rotating the swivel plate 13 in a horizontal state and bringing the side edge 13a into contact with the adjacent one, a light shielding state can be obtained, and the swivel plate 13 is erected from an oblique state. When it is turned to the state, it can be freely adjusted to a lighting state in which natural light is sufficiently drawn. Here, it is desirable that at least one surface of the swivel plate 13 be provided with sound absorbing characteristics. This is because it is used to control the acoustic effect in the hall. Furthermore, the decorative effect can be changed by applying a decorative panel of various designs for decoration.

As shown in FIG. 2, the inner frame member 1
Reference numeral 2 denotes a channel member having a U-shaped cross section, on which a ring-shaped moving frame 14 is arranged adjacently and in parallel. Four locations on the inner peripheral surface of the frame member 12 (90
(At a pinch angle of °), a bracket 12a is provided so as to project inward from the lower end thereof, and each bracket 1
A power cylinder 16 is attached to 2a as a drive source. The moving frame 14 has a bracket 14a directed inward at a position corresponding to each bracket 12a.
And the power cylinder 16 is mounted on the bracket 1
An output rod 16a connected to 4a is provided. Therefore, by expanding and contracting the output rod 16a of the power cylinder 16, the moving frame 14 moves up and down while maintaining the parallel state with the frame member 12.

As shown in FIG. 3, transmission means 15 for transmitting the elevation of the moving frame 14 to the rotational movement of the swivel plate 13 is provided for each swivel plate. That is, the inner pivot 13b of the swivel plate 13 is inserted into the frame member 12, and the pinion gear 15a is attached to the tip thereof. The rack 15b that meshes with the pinion gear 15a is the moving frame 1
The rack 15b is provided to project downward from the lower surface of the rack 4, and the lower end of the rack 15b is vertically movably guided by a guide rail (not shown) provided on the frame member 12.

Therefore, when the output rod 16a of the power cylinder 16 is expanded and contracted to move the moving frame 14 up and down, as shown by the arrow in FIG.
Through the meshing of the pinions 15a, it is transmitted to each swivel plate 13 as the swivel, so that the plural swivel plates 13 swivel at the same time.

In the above embodiment, since the transmission means 15 is constructed by utilizing the rack 15b and the pinion gear 15a, there is no failure, maintenance is free, and reliability is high.
It is possible to reliably transmit the motion. Power cylinder 1
The number of 6 is set to 4 in order to operate stably with the minimum number.

FIG. 4 is a perspective view of a rectangular daylight shading device 2 according to another embodiment of the present invention. As shown in the figure, two parallel frame members 21, 22 forming the long sides of the rectangle
A large number of swivel plates 23 are arranged in parallel between them. The swivel plate 13 has a rectangular shape and is rotatably supported about the longitudinal direction thereof. Therefore, by rotating the swivel plate 23 in a horizontal state and bringing the side edge 23a into contact with the adjacent one, a light-shielding state can be obtained.
When the swivel plate 23 is rotated from an oblique state to a standing state,
It is possible to freely adjust to a lighting state in which natural light is sufficiently drawn.

One of the frame members 22 is a channel member having a U-shaped cross section, and a rod-shaped moving frame 24 is adjacently arranged in parallel thereabove. Brackets 22a are projectingly provided at three positions of the frame member 22, and a power cylinder 26 is attached to each bracket 22a as a drive source. In the moving frame 24,
A bracket 24a is provided so as to project at a position corresponding to each bracket 22a, and the power cylinder 26 includes an output rod 26a connected to the bracket 24a. Therefore, by expanding and contracting the output rod 26a of the power cylinder 26, the moving frame 24 moves up and down while maintaining the parallel state with the frame member 22.

Further, as in the above embodiment, a transmission means 25 for transmitting the elevation of the moving frame 24 to the rotational movement of the swivel plate 23 is provided for each swivel plate. That is, the swivel plate 2
One of the three pivots 23b is inserted into the frame member 22, and a pinion gear 25a is attached to the tip thereof.
A rack 25b that meshes with the pinion gear 25a is provided so as to project downward from the lower surface of the moving frame 24. Therefore, when the output rod 26a of the power cylinder 26 is expanded and contracted to move the moving frame 24 up and down, the up and down movement is transmitted to each swivel plate 23 as its swivel motion through the engagement of the rack 25b and the pinion 25a. The swivel plate 23 will swivel all at once.

In the above embodiment, the transmission means 15 and 25 are racks 15b and 25b and pinion gears 15a and 2b.
5a has been combined, the present invention is not limited to this. For example, FIG. 5 shows another transmission means 35 using a crank mechanism as an example. This transmission means 3
As shown in FIG. 5, the crank arm 35a is attached to the pivot of the swivel plate, and a vertically moving rod is projected downward from the lower surface of the moving frame. The vertically moving rod and the crank arm 35a are connected by a connecting rod 35b. Both ends are pinned.

Therefore, by moving the moving frame up and down, its movement is transmitted to the crank arm 35 as a turning movement through the connecting rod 35b, whereby
A plurality of swivel plates will swivel at once. Further, the frame members 11 and 12 may be circular, corrugated, or polygonal shapes that are rich in design, and the moving frame 14 may also have the same shape. Further, a daylight blocking device having another shape such as an L shape may be realized.

Further, the moving frame 14 is not limited to the one that reciprocates in the direction of approaching and separating from the frame member 12 as in the above-described embodiment, but one that reciprocates in the longitudinal direction with respect to the frame member 12. May be

[0020]

As described above in detail with reference to the embodiments, in the present invention, a plurality of swivel plates are pivotably supported between two frame members, and the movable frame is reciprocally moved by a drive source. Since the transmission means for converting the reciprocating movement of the moving frame into the swivel movement of the swivel plate is provided, it is possible to swivel a plurality of swivel plates simultaneously by at least one drive source, and freely change from the light-shielded state to the lighting state. Can be adjusted to. Therefore, the present invention is suitable as a large-scale daylight blocking mechanism that utilizes natural light for construction and the like in a large-scale facility such as a multipurpose event hall. Further, the present invention can be made into a tough structure that has few failures, is maintenance-free, is robust, and has excellent operability, and is also excellent in designability that can be manufactured into various shapes such as a circle, a rectangle, an L-shape, and a wavy shape. ing.

[Brief description of drawings]

FIG. 1 is a perspective view of a circular daylight shading device for a ceiling according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a II portion in FIG.

FIG. 3 is an enlarged perspective view of a portion III in FIG.

FIG. 4 is a perspective view of a rectangular daylight shading device for a ceiling according to another embodiment of the present invention.

FIG. 5 is an explanatory view of another transmission means.

[Explanation of symbols]

 1 Circular lighting shading device 2 Rectangular lighting shading device 11, 12, 21, 22 Frame member 13, 23 Swiveling plate 14, 24 Moving frame 15, 25, 35 Transmission means 15a, 25a Pinion gear 15b, 25b Rack 16, 26 Drive source (Power cylinder) 35a Crank arm 36b Connecting rod

Claims (1)

[Claims] 1. At least two frame members incorporated in a daylighting section of a ceiling, and a plurality of swivel plates pivotably supported between the two frame members so as to be continuously adjustable from a light-shielded state to a daylighted state. A moving frame which is adjacent to at least one of the two frame members and is guided so as to be able to reciprocate in a parallel state; at least one drive source for reciprocally driving the moving frame; and a reciprocating movement of the moving frame. A ceiling daylight shading device comprising: a transmission means for transmitting power to a swivel motion of a swivel plate.