JPH11299365A - Curtain opening and closing device for plastic greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a curtain opening and closing device capable of automatically and simply winding up and down with an opening and closing device by using one curtain covering a surface of a frame body in a plastic greenhouse. SOLUTION: This curtain opening and closing device has a curtain 7 continuously covering a surface of a frame body 2 in a circular part of a plastic greenhouse 1 from its top part to a bottom and a winding shaft 9 fitted along the bottom end of the curtain 7 is held with shaft sliding to a guide plate 14 provided in a sliding-transferring direction with the frame body 2 at a prescribed length and shaft-rotating the winding shaft by a speed deceleration motor 11 having a brake, then ventilation and thermal insulation in the greenhouse are performed by continuously winding up and winding down of the curtain 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain opening / closing device for a large greenhouse for growing crops.

[0002]

2. Description of the Related Art FIG. 4 is a partial perspective view showing a conventional curtain opening / closing device for a greenhouse. In the drawing, reference numeral 1 denotes a greenhouse, 2 denotes a frame forming the house, and a circular gate-shaped pipe has a long length. The pipes are arranged at predetermined intervals in the vertical direction, and are fixedly connected to the longitudinal pipes arranged at predetermined intervals in the circumferential direction of the portal pipe. 3 is an upper curtain whose upper edge is fixed to the outer surface of the circular portion at the top of the frame 2 and covers the inside of the curved surface along the curved surface. A lower curtain with an upper edge fixed and hanging downwards, both made of agricultural vinyl. Reference numeral 5 denotes an upper curtain opening / closing device, which is provided at one end of a pipe-shaped winding shaft 51 fixed in the lateral direction along the lower edge of the upper curtain 3, for example, a direction changing member made of a bevel gear. Is connected to the handle 52 via a shaft. Reference numeral 6 denotes a lower curtain opening / closing device, and a handle 62 fixed to one end of a pipe-shaped winding shaft 61 fixedly provided in a lateral direction along a lower edge of the lower curtain 4, and a winding shaft 61. A support plate 63 having a through hole that is easy to slide on the shaft is attached to a support rod 64 that stands upright on the ground and protrudes and is fixed via a through hole that can easily move up and down along the length direction.

Next, the operation will be described. Crops such as field crops, vegetables and flowers are grown on the ground. A plastic greenhouse 1 is provided to cover this crop, preventing the night temperature and the ground temperature in the greenhouse from lowering, and keeping the upper curtain 3 and the lower curtain 4 in order to keep the heat, shade and heat during the day, and to provide ventilation. Then, the curtain is wound up and opened by temperature control. First, as described above, the upper curtain 3 and the lower curtain 4 usually keep the greenhouse 1 in a closed state. Next, the case of ventilation and temperature adjustment in the house will be described. First, in the case of the upper curtain 3, when the operator turns the handle 52 of the upper curtain opening / closing device 5 by hand, the take-up shaft 51 pivots. It is wound around the take-up shaft 51, and along with this, a space in the longitudinal direction is formed in the pipe house 1. Since the upper curtain 3 is provided in the circular portion at the top of the frame 2, the worker moves laterally with the winding operation. Next, in the case of the lower curtain 4, when the operator turns the handle 62 of the lower curtain opening / closing device 6 by hand, the winding shaft 61 pivots, and as the pivot rotates, the lower curtain 4 moves from the lower end. Winding shaft 61
And a space in the longitudinal direction is formed in the pipe house 1. The lower curtain 4 includes the frame 2
The winding shaft 61 rises with the above-described winding operation, and the support plate 63 rises with the support rod 64 as a guide, thereby stabilizing the operation of the handle. Make it work. When the greenhouse 1 is hermetically sealed, the upper curtain opening / closing device 5 is reversely rotated to lower the upper curtain 3, and the lower curtain opening / closing device 6 is reversely rotated to lower the lower curtain 4. Create a sealed state.

[0004]

Since the conventional greenhouse curtain opening and closing device is constructed as described above, opening and closing devices are required at the circular portion and the facing portion of the frame body, and the upper curtain is wound up. In the case of lowering, the worker must move, and in the case of lowering and lowering the curtain, a support rod is required, which has a problem that the operator is obstructed from passing through. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. One side of a frame is a curtain, and the curtain is automatically opened and closed by an opening and closing device. The aim is to obtain a device.

[0006]

According to a first aspect of the present invention, there is provided a curtain opening / closing apparatus for a greenhouse, which comprises a lower edge of a curtain provided continuously from the top of a frame forming the house to one side of an outer surface. The take-up shaft is fixed laterally along the guide shaft, and a guide plate, a mounting plate, a reduction motor with a brake are provided at one end of the take-up shaft, and the guide plate has a through hole through which the take-up shaft can slide. The length in the sliding direction with respect to the frame body is provided at a predetermined length.

In a second aspect of the present invention, there is provided a curtain opening / closing device for a greenhouse, wherein a deceleration motor with a brake is mounted in a direction perpendicular to the thickness of the guide plate, and is provided so as to protrude along the side of the frame. is there.

[0008]

According to a first aspect of the present invention, there is provided a guide plate frame in which a single curtain is provided on one side of the frame body continuously from the top to the bottom, and a winding shaft for winding up the curtain is pivotally held. Since the length in the sliding direction with respect to the body is provided at a predetermined length, the curtain portion is continuously formed at the facing portion and the top portion of the frame body without a guide rod or the like similar to the outer surface of the frame body. To wind up and down.

According to a second aspect of the present invention, a deceleration motor with a brake is mounted so as to protrude in a direction perpendicular to a thickness portion of a guide plate provided at a predetermined length in a sliding movement direction and toward a side surface of the frame. Therefore, due to the weight of the brake-equipped deceleration motor, the upper edge of the sliding portion of the guide plate with respect to the frame is always pressed against the frame, and the sliding motion is assured and easy.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, reference numeral 7 denotes a curtain provided from the top of the circular gate of the frame 2 along the outer surface of one surface to a lower portion, and 8 denotes a curtain opening / closing device, along a lower edge of the curtain 7. One end of a pipe-shaped take-up shaft 9 fixedly provided in the lateral direction is inserted into one end of a sleeve 10 and fixed by a pin 10a. The shaft of the deceleration motor with brake 11 is inserted into the other end of the sleeve 10.
The shaft key is fixedly connected to the shaft by a key groove. Reference numeral 12 denotes a mounting plate, on one surface of which a mounting portion of the brake-equipped deceleration motor 11 is fixed by bolts, and a through hole 13 is provided with the sleeve 10 via a gap. Reference numeral 14 denotes a guide plate, and a through hole 15 which is easy to slide with the winding shaft 9 in the thickness direction along the width direction.
A hole 16 having a gap with the sleeve 10 is provided in communication with the sleeve 10, and an end surface of the thick portion on the side of the hole 16 is fixed to the other surface of the mounting plate 12 with bolts. At this time, the mounting direction of the brake-equipped deceleration motor 11 is provided so as to project in a direction perpendicular to the thickness portion of the guide plate 14 and along the side surface direction of the frame 2. The power supply of the brake-equipped deceleration motor 11 is provided by a flexible cord near the top of the side surface of the greenhouse 1 so as to be convenient for moving the curtain opening / closing device and not hindering the ordinary work of the operator. I have. Although the case where the curtain opening / closing device 8 is provided on one side of the greenhouse 1 has been described, the curtain opening / closing device 8 is similarly provided on the other side. (The illustration is omitted.) Since other configurations are the same as the conventional one, the description is omitted.

Next, the operation will be described. The greenhouse 1 covering the crop to be grown is normally kept warm with the curtain 7 lowered and the inside of the greenhouse closed as in the conventional case. Next, the case of ventilation and temperature adjustment in the house will be described. When the operator turns on the power supply of the curtain opening / closing device 8, the take-up shaft 9 is rotated by the driving force of the deceleration motor 11 with a brake.
Is wound around the winding shaft 9 from the lower end, and a space in the longitudinal direction is formed in the pipe house 1 as the curtain 7 is wound. Since the curtain 7 is provided as one continuous sheet along one surface of the greenhouse 1, the curtain 7 is continuously wound up from the lower facing portion to the circular portion at the top. When the greenhouse 1 is closed and kept in a warm state, the deceleration motor 11 with the brake of the curtain opening / closing device 8 is driven to rotate in the reverse direction, whereby the winding shaft 9 is rotated in the reverse direction to be wound up. The curtain 7 is lowered to gradually cover the space to create a sealed state. In the winding operation of the curtain 7, when the rotation of the winding shaft 9 is stopped and the winding operation is stopped, the deceleration motor 11 with a brake is used for the rotation driving. The apparatus keeps the motor shaft fixed and keeps the stationary state without reverse rotation due to the weight of the wound curtain 7.

Further, since the guide plate 14 for holding the take-up shaft 9 while sliding the shaft rotation in the sliding direction with respect to the frame 2 is provided at a predetermined length, a guide rod or the like is required. It is possible to continuously slide and move the facing portion and the circular portion of the frame body 2 without making any changes. Further, the guide plate 14 configured as described above is used.
Since the deceleration motor with brake 11 is mounted so as to protrude in the direction perpendicular to the side of the frame 2 in a direction perpendicular to the thickness of the frame 2, the upper edge of the sliding portion of the guide plate 14 with the frame 2 always has the frame 2 , So that sliding movement can be ensured.

[0013]

As described above, according to the present invention, a large greenhouse having a curved top portion is covered with a single curtain from the top portion to the lower portion on each side of the greenhouse. The winding shaft, which is fixed and fixed, is slid and held by a guide plate provided with a predetermined length in the sliding movement direction with the frame, and is rotated by a deceleration motor with a brake to wind up the curtain. With this configuration, the curtain can be rolled up continuously from the face of the frame to the curved surface without the need for complicated guide members, making the device simple and inexpensive.
In addition, there is an effect that work can be easily performed continuously.

A brake is provided for driving the take-up shaft so as to protrude in a direction perpendicular to a thickness portion of a guide plate provided at a predetermined length in a sliding movement direction with respect to the frame and toward a side surface of the frame. Since the deceleration motor is attached, the upper edge of the sliding portion between the guide plate and the frame by the weight of this deceleration motor with brake is
Since it always operates by being pressed against the frame, there is an effect that the sliding movement is reliable and easy.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a greenhouse curtain opening / closing device according to an embodiment of the present invention.

FIG. 2 is a detailed cross-sectional view of the shaft coupling portion of FIG.

FIG. 3 is a perspective view of the component assembly configuration of FIG. 2;

FIG. 4 is a partial perspective view showing a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Greenhouse 2 Frame 7 Curtain 8 Curtain opening / closing device 9 Winding shaft 11 Brake reduction motor 12 Mounting plate 14 Guide plate 15 Through hole

Claims (2)

[Claims] 1. A vinyl house provided to cover a crop grown on the ground, a curtain continuously provided from the top of a frame forming the house to a lower portion along an outer surface, and a lower edge of the curtain. A take-up shaft fixedly provided in the lateral direction, a brake-equipped deceleration motor provided so as to be connected to one end of the take-up shaft via a sleeve, and fixed to an attachment portion of the brake-equipped deceleration motor, A mounting plate having a through hole having a gap with the sleeve, a mounting hole fixed to a surface portion and a thickness portion of the mounting plate, and having a through hole that facilitates sliding of the winding shaft and the shaft, and sliding with the frame; A greenhouse curtain opening and closing device comprising a guide plate having a predetermined length in a direction. 2. A curtain opening / closing device for a greenhouse according to claim 1, wherein the brake-equipped deceleration motor is mounted so as to protrude along a side surface of the frame in a direction perpendicular to the thickness of the guide plate. .