JPS598528Y2 - Skylight opening/closing device for greenhouse - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a skylight opening/closing device for a greenhouse.

This kind of skylight opening/closing device that has been used conventionally has an awning that covers the skylight of a greenhouse, supported by parallel links fixed to the frame of the greenhouse, and by rotating the parallel links, the awning is moved vertically in parallel. Some have skylights that can be opened.

However, although this device opens the skylight by moving the entire awning covering the skylight upward in parallel, it is easy for rain to flow in.
Therefore, when it rains, it is not possible to open the skylight to ventilate, and the ventilation efficiency is poor because the awning does not have the effect of guiding the wind.Furthermore, in the case of a large skylight, the equipment must be large-scale. There were drawbacks.

In particular, if the tent stretches and becomes loose, there are problems such as not only the tent swinging up and down and tearing when exposed to wind, but also rainwater accumulating and the weight of the tent causing the tent to tear.

Therefore, the present invention attempts to provide a skylight opening/closing device for a greenhouse that solves the above-mentioned drawbacks at once by being configured so that only one side edge of the awning can be raised or lowered, and the tension of the awning can be adjusted. It is something.

An embodiment of the present invention will be described below in detail with reference to the drawings.

Skylight opening/closing device 1 for a greenhouse shown in Figures 1 to 4
2 is a vinyl house, and a vinyl sheet 4 is installed on the outer surface of a plurality of pipe frames 3 arranged in parallel in the front and back direction.
and put a vinyl sheet 4 between each pipe frame 3, 3.
A presser band 5 is wrapped around the roof 6 to hold it, and a vinyl sheet 4 is cut out in the center 7 of the roof 6 to form skylights 8, 8.

Reference numeral 9 denotes an awning made of vinyl sheet, which is placed over the upper surfaces of both skylights 8, 8, and the front, rear, left and right side edges 9a, 9b are attached to the skylights 8, 8.
The periphery of 8 is wrapped with an appropriate width.

Then, the upper edge 9a of the tent 9 is connected to the left and right side edges 9 of the vinyl house.
A pipe 15 is attached to b, and a presser band 9C is stretched between the left and right pipes 15 and 15.

Reference numerals 11, 11, and 11.11 are a pair of guide rods in the front and rear, respectively, which are provided on the left and right outer sides of the lower part of the skylights 8, 8, and the lower ends 11a are pivoted to the pipe frame 3 via pins 3a so as to be freely rotatable in the vertical direction. A long hole 11C is provided at the upper end 1lb, and this length 7L11c is a hanging rod 3b hanging from the pipe frame 3.
The bolt H2a of the fixing means 12 is inserted through the intersection of the elongated hole 3C.

The guide rod 11 and the suspension rod 3b can be integrally connected by tightening a nut 13 screwed onto the bolt 12a.

14.14 is a pair of front and rear L-shaped support rods, which are arranged in parallel above the guide rod 11, and whose left ends are connected to a pipe 15 attached to the lower edge 9b of the awning 9.

16.17 is a pair of main and subbars: ri, pin 1 at the intersection
8 for relative rotation.

The lower end 16a of the main bar 16 is rotatably connected to the guide rod 11 by a pin 19.

Connect the upper end 17a of the sub-bar 17 to the support rod 14 with pin 2C.
They are connected so that they can rotate freely.

Reference numerals 21 and 22 denote slides, which are slidably fitted into the guide rod 11 and the support rod 14, respectively.

The upper end 16b of the main bar 16 is rotatably connected to the slider 21 of the support rod 14 by a pin 23, and the lower end 17b of the sub bar 17
b is rotatably connected to the slider 22 by a pin 24.

25 is a rotating shaft, and bearings 26, 2 are installed at the bottom of the guide rod 11.
6 in parallel.

A spiral wire 27 is wound around the outer periphery of the rotating shaft 25 to form a spiral groove 27a.

Also, at one end of the rotating shaft 25, a hand chain wheel 28 and a pulley 28' are provided.
and the pulley 28' of the front and rear rotating shafts 25.25,
Endless bell between 28'} 30 and endless chain 2 to hand chain wheel 28
9 is wrapped around it.

A rod-shaped retaining portion 30' is provided on the lower surface of the slider 22 of the guide rod 11.
is provided protrudingly, and the retaining portion 30' is fitted into the spiral groove 2 of the rotating shaft 25.
7a, and by rotating the rotating shaft 25, the slider 22 is moved left and right.

Skylight opening/closing device for greenhouse constructed as above 1
Describe the effect of

To open the skylight 8, pull one endless chain 29 to rotate the front and rear rotation shafts 25.25 in the direction of arrow At the same time, the main bar 16 also rises around the pin 19, which causes the support rod 14 to move upward and finally reach the position shown by the imaginary line in Figs. 3 and 4. However, when the opening amount of the skylight 8 reaches a desired amount, by stopping the rotation of the rotating shaft 2, the slider 22 is moved into the spiral groove 27.
Since movement is prevented by a, the awning 9 is stopped at that position, and the skylight 8 is maintained at a desired opening amount.

In this way, by stopping the rotating shaft 25 at a desired position, the awning 9 can be stopped at a desired position, and the opening amount of the skylight 8 can be adjusted.

When the skylight 8 is opened in this way, the center part of the awning 9 is in contact with the roof of the greenhouse 2, and the side edges 9b
Since the sides are raised and slanted, the guiding action of the awning 9 allows wind to flow in and out smoothly through the skylight, resulting in efficient ventilation.

Moreover, when the left and right skylights 8, 8 are opened, the wind penetrates from side to side, resulting in even more efficient ventilation.

Next, when closing the skylight 8, the rotating shaft 25. When the slider 25 is rotated in the direction of arrow Y, the slider 22 moves to the right, and the support rod 14 moves downward to lower the side edge 9b of the awning 9 and close the skylight 8.

Since the support rod 14 is moved up and down by the relative rotation of the intersecting main and sub-bars 16 and 17, it can be moved substantially straight even though it is moved largely, and the awning 9 does not shift laterally from the upper surface of the skylight 8.

If the awning 9 becomes loose when the skylight 8 is open, or if it is tightly tensioned, it may cause damage, so be sure to tighten the nut 13.
If the upper end 11b of the guide rod 11 is loosened and the upper end 11b of the guide rod 11 is moved upward, the support rod 14 will move to the left and the awning 9 will be stretched, and if it is moved downward, the support rod 14 will be moved to the left and the awning 9 will be loosened. The tension of the awning 9 can be adjusted by rotating the guide rod 11 up and down to change the angle of inclination, and the guide rod 11 can be fixed by tightening the nut 13 at a desired position.

In the above embodiment, the left and right skylights 8, 8 are covered with a single awning 9, but the left and right awnings are separate, one side edge of each awning is fixed to the roof of the greenhouse, and the other awnings are fixed to the roof of the greenhouse. The side edges may be moved up and down.

In addition, the skylight 8 may be provided over the entire roof portion instead of being provided partially.

Further, in the case where a plurality of skylights are provided, all the skylights may be operated from one place without opening and closing the skylights individually.

Further, in the above embodiment, the bolts 12 and nuts 13 are used as means for fixing the guide rod 11, but the present invention is not limited to this, and any fixing means may be used.

As shown in the above embodiments, the skylight opening/closing device for the greenhouse according to the present invention is made to move up and down by utilizing the vertical expansion and contraction effect produced by the relative rotation of a pair of bars that are rotatably connected at the intersection of the support rods. Even though the awning is placed far away from the skylight and opened wide, the awning does not move sideways from the top surface of the skylight, and even when it rains, ventilation can be achieved without rain coming in through the skylight.

Moreover, since the awning opens diagonally above the skylight, the wind can be guided in and out of the skylight, allowing for efficient ventilation.

Furthermore, since it is only necessary to lift up one side edge of the awning, the awning can be manufactured with small equipment and at low cost, even though it is a large awning.

In particular, the present invention pivots the guide rod to the greenhouse so that the inclination angle of the guide rod with respect to the lower surface of the awning can be adjusted.
Since a fixing means is provided to hold the door rod at an arbitrary inclined position, the tension of the awning can be adjusted in advance, and damage to the awning due to wind or rain can be prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view;
Figure 2 is a longitudinal sectional view, Figure 3 is a perspective view of the main part, Figure 4 is a
FIG. 2 is an enlarged cross-sectional view of the main part of the figure. 2... vinyl house, 9... tent,
11... Guide rod, 12... Fixing means, 14... Support rod, 16... Main bar 1
7... Sub-bar

Claims (1)

[Scope of utility model registration request] An awning is placed over the top of the skylight of the greenhouse, one edge of the awning is fixed to the greenhouse, a guide rod is installed at the bottom of the skylight, and a support rod attached to the other edge of the awning is attached to the top of the guide rod. A pair of bars are arranged side by side and connected so as to be relatively rotatable at the intersection, one end of which is rotatably connected to a guide rod, and one end of the other bar is rotatably connected to a support rod. ,
slidingly engages sliders on the id rod and support rod, respectively.
The other end of one bar is rotatably connected to the slider of the support rod,
The other end of the other bar is rotatably connected to the slider of the guide rod, the guide rod is pivoted to the greenhouse so that the inclination angle of the guide rod can be adjusted, and the guide rod is held at an arbitrary inclined position. A skylight opening/closing device for a greenhouse, characterized in that it is provided with a fixing means for securing the roof.