JPS6260046B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding/closing device for heat insulating sheets in a plant cultivation greenhouse, and is intended to simultaneously open and close a plurality of heat insulating sheets using a single motor.

In general, it is easy to open and close this type of insulation sheet with a roll-up type, but in order to open and close multiple insulation sheets in multiple buildings, a motor corresponding to each insulation sheet is required, which requires installation work, operation, and inspection. and unfavorable from an economic point of view.

The present invention is intended to eliminate such conventional drawbacks, and will be explained below based on the drawings showing one embodiment.

In the figure, 1 and 1' are the first and second connected
It shows the internal framework of the chevron-shaped roof of the greenhouse building.
2'. A prime mover 3 consisting of a motor and a speed reducer is attached to the center of the internal frame 1 on the roof of the first greenhouse building, and a driven shaft 4 is attached to the internal frame 1' on the roof of the second greenhouse building. It is provided. The output shaft 5 of the prime mover 3 and the driven shaft 4
are each provided with a drive drum 6, 6' and an interlocking drum 7, 7'. In this embodiment, the motor 3 is provided with two output shafts 5, and the interlocking drum 7 is attached to one output shaft 5, but the number of the output shafts 5 may be one.

The heat insulating sheets 2, 2' on the roofs of the first and second greenhouse buildings are inclined so that both ends are downward from the center, and sheet winding shafts 8, 8, 8' and 8' are connected. A driving tapered drum 9, 9, 9', 9' and two guiding tapered drums 10, 10, 10', 10' are provided at one end of the sheet winding shaft 8, 8, 8', 8', respectively. It is installed.

Driving ropes 11, 11 are linked to the driving drums 6, 6 on the prime mover 3 side and driving tapered drums 9, 9 in the first building, and drive ropes 11, 11 are linked to the driving drums 6', 6' on the driven shaft 4 side and Driving ropes 11', 1 are also attached to the drive tapered drums 9', 9' in the two buildings.
1' are linked. These driving ropes 11,
11' is connected by wrapping one end around the driving drums 6, 6' and fixing it there, and wrapping the other end around the driving tapered drums 9, 9' in advance by the required amount in the direction of the large diameter so that it can be unwound from the small diameter side. It is fixed.

In addition, unwinding ropes 1 are attached to the driving drums 6, 6, 6', 6' and the driving tapered drums 9, 9, 9', 9'.
4, 14, 14', 14' are linked. The unwinding ropes 14, 14' are fixed by winding one end thereof into the drive drums 6, 6' by a required amount in advance in the opposite direction to the winding direction of the winding ropes 11, 11'.
The other end is pulled back via rollers 15, 15' located at an extension in the direction of the sheet winding shafts 8, 8' and opposed to the driving tapered drums 9, 9'.
It is fixed to the driving tapered drums 9, 9' so as to be wound from the small diameter side. Then, the springs 12, 1 are applied to the unwinding ropes 14, 14'.
Appropriate tension is applied via 2' and rollers 13, 13' to prevent loosening.

In addition, the guide taper drums 10, 10, 1
Guide ropes 16 and 1 are installed in advance at 0' and 10'.
6, 16', 16' are rolled up in the required amount, and one end thereof is fixed to the outer end of the internal skeleton 1, 1' of the roof part. Also, some of the guide taper drums 1
Return ropes 17, 17' are linked to 0, 10'.

Further, both ends of two interlocking ropes 18, 19 are wound around the interlocking drums 7, 7' to provide an interlocking relationship. Note that 20 and 21 are the interlocking ropes 1
These are guide rollers 8 and 19.

In the above configuration, when the prime mover 3 is now driven to rotate the output shafts 5, 5 in directions A and A shown in FIG. It rotates in directions B and B by winding up. Therefore, the winding shafts 8, 8 move in the direction of the drive drums 6, 6 while winding up the heat insulating sheets 2, 2.

At this time, since the interlocking drum 7 fixed to the output shaft 5 also rotates at the same time, the interlocking rope 18 is untied from the interlocking drum 7, and the interlocking rope 19 provided oppositely is wound up. Therefore, the interlocking drum 7' of the second building, which links the ends of the interlocking ropes 18 and 19, simultaneously rotates in the direction A, and the driven shaft 4 of the second building rotates, causing the drive drum 6' attached thereto to rotate. , 6', drive ropes 11', 11', and drive tapered drums 9', 9' also rotate in the same manner as described above, and since the sheet winding shafts 8', 8' rotate, the second
The heat insulation sheet 2' of the ridge is rolled up.

When closing the heat insulation sheets 2, 2, the prime mover 3 is rotated in the opposite direction. This rotation loosens the winding ropes 11, 11', so that the sheet winding shafts 6, 6' tend to roll down along the slope of the roof. At this time, the winding ropes 11, 11' and the guide ropes 14, 14' are connected to the driving tapered drums 9, 9' and the guiding tapered drum 10, respectively.
10' is wound again. At this time, if the slope of the roof slope is small or the slope is distorted, the component of the sheet winding shafts 8, 8' rolling downward is small, so the unwinding ropes 14, 14' are used. do. When the unwinding ropes 14, 14' are opened, the portions previously wound around the drive drums 6, 6' are unwound, and the unwound ropes are passed through the rollers 15, 15' to the drive taper. Since the drums 9, 9' are wound up from the small diameter side, when closing the heat insulation sheets 2, 2', the unwinding rope 14 is rotated by rotating the drive drums 6, 6' in the opposite direction to the A direction. Drive drum 6, 6'
, and tries to pull the driving tapered drum 9 in the opposite direction to the arrow shown in the figure. On the other hand, since the heat insulating sheets 2, 2' are wound around the sheet winding shafts 8, 8', they cannot be moved unless the heat insulating sheets 2, 2' are unwound. Therefore, the sheet winding shafts 8, 8' are forced to unravel the heat insulating sheets 2, 2'.

Note that the return ropes 17, 17' function to prevent imbalance due to elongation of the heat insulating sheets 2, 2' when the heat insulating sheets 2, 2' are wound up.

As explained above, the present invention can open and close the heat insulation sheets of two greenhouses with one prime mover, simplifying the equipment and making it economical. Moreover, opening and closing of the heat insulating sheet is reliable and extremely effective. Moreover, the greenhouse is not limited to two buildings, but can be applied to three or more greenhouses by attaching interlocking ropes at the same time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a winding/closing device for a heat insulating sheet according to an embodiment of the present invention, and FIG. 2 is a top view of the same. 1,1'...Internal skeleton of the roof of the greenhouse building, 2,
2'... Heat insulation sheet, 3... Prime mover, 4... Driven shaft, 5
...output shaft, 6,6'...driving drum, 7,7'...interlocking drum, 8,8'...sheet winding shaft, 9,9'...driving taper drum, 10,10'...guiding taper drum, 11,11'...driving rope, 14,1
4'... Rewinding rope, 15, 15'... Roller, 1
6, 16'... Guide rope, 17, 17'... Return rope, 18, 19... Interlocking rope.

Claims (1)

[Claims] 1.In the case where multiple greenhouse buildings with sloping roofs are installed in series, each roof is provided with a heat insulating sheet, and the greenhouse is opened and closed by winding up and unwinding a winding shaft with the heat insulating sheet at the end. A prime mover is provided on a high part of the roof of one greenhouse building, a driven shaft is provided on a high part of the roof of another greenhouse building, and a driving drum and an interlocking drum are connected to the output shaft of the prime mover and the driven shaft, respectively. A winding shaft for winding up the heat insulating sheet is coupled to the lower end of the sheet, and a driving tapered drum and a guiding tapered drum are attached to each winding shaft,
One end of the drive rope is wound and fixed around each drive drum, and the other end is wrapped around each tapered drive drum by the required amount in the direction of the large diameter so that it can be unraveled from the small diameter side, and one end of the unwinding rope is fixed. A required amount of the drive rope is wound and fixed in advance in the opposite direction to the winding direction of each drive drum, and the other end is pulled back via a roller disposed at a part farther from the sheet winding shaft when viewed from the drive drum, The guide rope is fixed so as to be wound around the drive taper drum from the small diameter side, and the other end of the guide rope with one end fixed is wound around each guide taper drum by the required amount and fixed, thereby interlocking the output shaft's interlocking drum and the driven shaft. A winding/closing device for a heat insulating sheet, characterized in that the ends of two interlocking ropes are wound and fixed around a drum so that they are wound up and unwound together.