JPH0584795B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a building shutter for opening and closing horizontal openings such as greenhouses and skylights.

[Prior art and problems to be solved by the invention] Generally, in this type of building shutter,
Some buildings have a shutter installed in a horizontal opening, and the shutter curtain is opened during the day to brighten the room, and at night the shutter curtain is closed to ensure heat retention. In this device, when the guide rail has an opening/closing part corresponding to the horizontal opening and a slat storage part facing in the vertical direction, the connecting part between the two parts is curved in an R shape. In this case, the sprocket is operated to forcibly feed the operating chain that connects the adjacent slats in series, and the slats are drawn out from the storage portion to close the horizontal opening. However, in this case, if the working chain is forcibly fed through the connecting part with the slat, the slat will be forcibly transferred to the closing side under the feeding action of the sprocket, but the working chain will separate from the slat connecting part. If the chain is forcibly fed through a section that has been moved, the operating chain itself will become slack or bent. As a result, the slats are no longer able to receive the transfer action from the sprocket, and the transfer on the closing side stagnates, which impedes the smooth closing operation of the slats at the connecting section.To avoid this, the horizontal opening is This poses a problem because the slope of the guide rail must be made steep to allow the slat to fall under its own weight.

[Means for Solving the Problems] The present invention was created in view of the above-mentioned circumstances with the aim of providing a building shutter that can eliminate these drawbacks.
In a building shutter in which adjacent slats are connected in series through an operating chain that is forcibly fed by a sprocket, a pair of front and rear running rollers are provided at each side edge of the slats, and a slat opening/closing guide is provided. The guide rail has a two-rail structure in which an inner rail body for the front running roller and an outer rail body for the rear running roller are installed side by side, and the horizontal opening can be opened and closed from the slat housing facing in the vertical direction. In order to transfer the slat to the opening/closing part, the connecting part of the guide rail where the sprocket is arranged is formed by curving both rail bodies into an R shape,
The outer rail body is characterized in that it is curved so as to be biased outward from the trajectory along the inner rail body.

With this configuration, the present invention makes it possible to positively move the slat to the closing side even when the working chain is sent by the sprocket to a position away from the connection part with the slat. It has been made possible.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, reference numeral 1 denotes a greenhouse, and the greenhouse 1 is built long in the east-west direction with the gable side facing approximately east-west. A frame is formed using a support 3 on the north side that is inclined so as to be displaced as follows, and a roof support 4 that is supported in an inclined manner between the upper ends of both supports 2 and 3 so that it becomes lower toward the south side. A greenhouse 1 is formed by extending a translucent resin film 5 over the entire surface of these supports 2, 3, 4 and an auxiliary frame material (not shown) as an outer wall.

On the other hand, 6 is a reflective plate that also serves as a heat insulating material, and the reflective plate 6 has reflective surfaces formed of a member such as aluminum foil on both the front and back sides.
The reflector plate 6 is arranged on the north side of the greenhouse so as to be substantially parallel to the north side support column 3, and at a predetermined distance from the north side support column 3, with the reflective surface facing south. It is installed vertically and is designed to reflect sunlight and direct the reflected light towards the soil surface of the greenhouse. Here, the inclination angle of the reflection plate 6 is set to approximately 70 degrees in the embodiment. This is an example when assembling in Hokkaido, but the calculation of the inclination angle is that the solar elevation angle is approximately 22 degrees at the minimum at the winter solstice, and approximately 70 degrees at the maximum at the summer solstice. Considering the value of , the angle has been calculated as an angle that allows concentrated irradiation of reflected light especially on plants on the north side in winter, and prevents shadows from being cast on the floor soil in the greenhouse by the reflector plate 6 in summer.

Reference numeral 7 denotes an opening/closing shutter that is assembled into the greenhouse, and a guide rail 8 constituting the opening/closing shutter 7 is attached directly to the pillars on both end sides of the greenhouse 1 or integrally through a support frame. There is. The guide rail 8 is composed of two rail bodies 8a and 8b arranged inside and outside in parallel,
The guide rail of the present invention is oriented in a vertical direction substantially parallel to the south side support 2 on the south side, and has a gentler slope than the roof support 4 on the ceiling side, but is installed in an inclined manner so that the south side is lower. It makes up the department. Further, on the north side, a curtain storage section is formed in the gap between the reflector 6 and the north side support column 3, and this storage section is arranged so that the outer rail body 8a is parallel to the support column 3 and the inner side. Rail body 8b
It is laid so that the slope is steeper than that. Moreover, the guide rail 8 is formed so that the outer rail body 8a is biased outward from the trajectory along the inner rail body 8b in the R-shaped connecting portion A between the storage portion and the opening/closing portion. has been done.

On the other hand, the shutter curtain is composed of plate-shaped slats 9 made of a heat insulating material manufactured by an appropriate method such as injection method or lamination method using rigid polyurethane foam. However, reflective surfaces similar to those of the reflective plate 6 are formed on the inner and outer surfaces of the slat 9, and front and rear running rollers 1 are formed on the left and right edges of the slat 9.
0 and 11 are attached to both the inside and outside surfaces in a staggered manner. The inner side running rollers 10 and the outer side running rollers 11 are assembled so as to exclusively run on the inner rail body 8b and the outer rail body 8a, respectively.

Further, 12 is an operating chain connected to the roller shaft 10a of the inner (front) side traveling roller 10,
The working chain 12 is connected to adjacent slats 9.
The slats 9 are continuously connected in such a manner that the opposing edges of the slats 9 face each other with a predetermined distance L between them.
Further, reference numeral 13 denotes a switch provided in the transfer section A of the guide rail 8, and a drive sprocket 14, which is chain-transmitted to the switch 13, is connected to the operating chain 1.
The opening/closing machine 13 is arranged to mesh with the opening/closing machine 13.
The shutter curtain can be opened and closed by the forcible chain feeding action of the drive sprocket 14 accompanying the forward and reverse drive of the shutter curtain. That is, when the shutter curtains are fully open, they are housed in a stacked manner in the housing section of the guide rail 8 formed on the north side. Then, the sprocket 14 is rotated by the drive of the opening/closing machine 13, and in conjunction with the forcible transfer of the operating chain 12 to the south side, the upper leading slat 9 is sequentially drawn out from the storage section and the guide rail opening/closing section is transferred. When the leading slat 9 reaches the tip of the guide rail 8 (lower end of the south guide rail) and the gap L between each slat 9 disappears, the shutter curtain becomes fully closed. The limit switch detects this and stops the drive of the opening/closing machine 13. Conversely, by driving the opening/closing machine 13 in the opposite direction to the above, the slats 9 are sequentially fed into the storage section on the north side and are fully opened.This is detected by an upper limit switch different from the above, and the slats 9 are opened/closed. The drive of the shutter 13 is stopped, and in this way the opening and closing of the opening/closing shutter 7 can be controlled. In addition, in the figure,
Reference numeral 15 is an airtight sheet provided on the final slat 9, which contacts the reflector 6 when fully closed to ensure airtightness. Reference numeral 16 is provided on the north outer wall so that it can be opened and closed, and is attached to the inner surface. 17 is a skylight formed as a reflective surface, and 17 is a stopper for the operating chain 12 that engages with the sprocket 14.

In the embodiment of the present invention constructed as described above, the opening/closing shutter 7 is kept fully open during the daytime when the sun's rays irradiate, and by doing so, the sun's rays are exposed to the single resin film 5.
In addition, in the embodiment, the sunlight is reflected by a reflector plate 6.
and the skylight 16, and the reflected light can be particularly focused on the plants on the north side where it is difficult to obtain sufficient sunlight because they are blocked by the plants on the south side. Even when the angle of elevation of the sun is low, such as during the winter season, it is possible to ensure that the plants in the greenhouse receive even sunlight. On the other hand, at night, the shutter curtain is fully closed by the drive of the opening/closing machine, and the greenhouse 1 has a double-layer heat-insulating structure consisting of the outer wall of the resin film layer and the shutter curtain, which provides excellent heat retention. This means that it will be possible to ensure this.

As described above, in the greenhouse in which the present invention is implemented, sunlight and heat retention can be ensured by opening and closing the shutter curtains as necessary. Next, the shutter curtain is forcibly transferred to the transfer section A where the sprocket 14 is arranged.
That is, when the shutter curtain is closed, the rotation of the sprocket 14 forces the operating chain 12 toward the closing side, that is, toward the guide rail opening/closing section. At this time, if the sprocket 14 meshes with the connecting portion of the operating chain 12 to the roller shaft 10a and feeds the chain, the slat 9 will also be subjected to the forced feeding action by the sprocket 14 toward the closing side. . However, as the connecting portion moves away from the sprocket 14, even if the sprocket 14 forces the actuating chain 12 toward the closing side, the actuating chain 12 is bent, so that the action of feeding the slat 9 toward the closing side becomes less direct. Stop working. However, in the present invention, the slat 9
In the process of being subjected to the forced feeding action by the sprocket, the rear running roller 11 runs on the outer rail body 8a that is biased outward from the trajectory along the inner rail body 8b, so that the rear edge side is lifted up. In this state, the rear running roller 11 slides down the outer rail body 8a which is steeper than the guide rail opening/closing portion. As a result, even if the slat 9 does not have a pulling force toward the closing side due to the absence of a preceding slat, such as the leading slat, the slat 9 will be actively moved toward the closing side due to the fall of its own weight. This results in smooth closing operation without stagnation.

Furthermore, as in the embodiment, the chain meshing part of the sprocket is provided with a stopper 17 for the chain to prevent tooth skipping of the sprocket 14, so that a more reliable chain feeding action can be performed. It is possible.

It should be noted that the present invention is of course not limited to the above embodiments, and the point is that the connecting portion of the guide rail is biased outward from the trajectory along the R-shaped inner rail body. When the outer rail body is curved so that the slats are no longer subject to the forceful transfer action of the sprocket, the rear roller slides down the steeply sloped outer rail body and is actively lowered by its own weight. For this reason, the larger the deviation of the outer rail body, the greater the effect of lowering its own weight, but if it is too large, the slat rear edge side will be The load to be lifted will become large, and the amount of deviation will therefore be determined by the size of the slats, the chain transport force of the sprocket, etc.

[Operations and Effects] In summary, since the present invention is constructed as described above, by the chain feeding action of the sprocket, the slats are transferred from the vertical slat storage section to the opening/closing section that opens and closes the horizontal opening. In this case, the slat assumes an inclined position with its trailing edge raised as the rear running roller runs on the outer rail body biased outward, and the rear roller slides down the outer rail body. Therefore, they will be actively transported. As a result, the slat can be smoothly and reliably transferred to the closing side without stagnation, and the closing operation of the shutter curtain can be performed in an extremely natural and orderly manner. be.

[Brief explanation of the drawing]

The drawings show an embodiment of the building shutter according to the present invention, in which Fig. 1 is a vertical cross-sectional view of a greenhouse showing the shutter fully open, and Fig. 2 shows the shutter fully closed. FIG. 3 is a perspective view of essential parts of the shutter curtain, and FIG. 4 is an explanatory diagram showing the state of transport of the slats in the transfer section. In the figure, 7 is an opening/closing shutter, 8 is a guide rail, 8a is an outer rail body, 8b is an inner rail body,
9 is a slat, 10 is a front running roller, 11 is a rear running roller, and A is a connecting portion.

Claims (1)

[Claims] 1. In a building shutter in which adjacent slats are connected in series through an operating chain that is forcibly fed by a sprocket, a pair of front and rear running rollers is provided at each side edge of the slats, and the opening and closing of the slats is The guide rail for guiding has a two-rail structure in which an inner rail body for the front running roller and an outer rail body for the rear running roller are arranged side by side, and the horizontal opening can be opened and closed from the slat housing facing in the vertical direction. In order to transfer the slat to the opening/closing part of the guide rail, the connecting part of the guide rail where the sprocket is arranged is formed by curving both rail bodies into an R shape. A building shutter characterized by being curved in such a way that it is biased outward.