JPS5820126A - Apparatus for covering inside of greenhouse by plural layers - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the invention of Japanese Patent Application No. 55-1311 s 0, and is additionally related to the invention, and relates to a plurality of curtains that can be opened and closed on the ceiling of a greenhouse. The present invention relates to a multi-layer coating system for the inside of a greenhouse, and in particular to improvements to the rope drum used therein.

The inventor of this invention applied for an inexpensive and small-sized device for extending a plurality of curtains on the ceiling of a greenhouse so that they can be opened and closed in multiple layers in Japanese Patent Application No. 55-131180. This will be explained based on Figure 1.

Two sets of beam units are placed above and below the ceiling of the greenhouse 1.
Erection 3. However, depending on the case, there may be three sets of beam units, but in this embodiment, a case where there are two sets will be described. The upper beam unit 2 has three beams 2aN2c arranged in the center of the greenhouse I and its left and right walls, and each of these beam units extends in the longitudinal direction of the greenhouse I. The central beam 2a is the left and right beam 2b
Place it at a slightly higher position than the X20.

The lower beam unit 3 has three beams 3a to 3c arranged at the center of the greenhouse 1 and its left and right walls at a predetermined distance downward from the upper beam unit 2. The central beam 3a is placed at a slightly higher position than the left and right beams 3b and 3o. In addition, a drum 4 for ropes is installed at the top of the nine cores of the greenhouse 1, and rope inverters 5a, 5 are installed at the lower left and right portions of the greenhouse 1.
b, a rope guide 6 is placed on the right ceiling in the greenhouse 1, and a curtain guide 7 is placed between the beams 2b and 3Q (!: between the beams 3b and 3Q).

8 is a rope that locks the curtain 9;
, each rope 8a,
The starting end of the rope 8b is locked to the right end of the rope drum 4 and wound counterclockwise when viewed from the right side, and then wound around the rope guide body 6 and the right rope inverter 5b from its outer side. Then, one of the ropes 8a is wound back and forth across the upper beam unit 2 and the left rope inverter 5a. The other lobe 8b is reciprocally wound around the lower beam unit 3 and the left rope inverter 5a, and then both loaves'
After collecting the ropes 8a and 8b and winding them around the right rope reversing body 5b and rope guide body 6, the terminal end thereof is locked to the left end of the rope drum 4.

When the rope drum 4 is rotated in the direction of the arrow 6A, each lobe 8a is
As shown in FIG. 1, the upper curtain 9a and the lower curtain 9b are respectively locked to the parts (A), (B) and (T) (1) of the parts (A), (B), and (T) (1) that move toward the center side F of , 8b.

As shown in FIG. 2, the rope drum 4 has a single spiral flange 4a on its outer periphery, and the above-mentioned lobes 8a, 8b are attached with this spiral flange 4a in between.
Wrap it in one layer.

With this structure, when the rope drum 4 is rotated, for example, in the direction of arrow A (clockwise rotation), the island lobes 8a18b are simultaneously unraveled at their starting ends and rolled up at their terminal ends. This results in the upper pair of curtains 9a.

9a and the lower curtain 9b, 9b are simultaneously actuated in the closing direction. Furthermore, if the rope drum 4 is rotated in the opposite direction (rotated to the left), each lobe 8'1Ls8b will be actuated in such a way that its starting end will be wound up and its terminal end will be unraveled, thereby causing the upper and lower curtains 9a, 9a19b, 9b
is operated to open.

Although the original invention has the structure and functions as described above, it has been found through use that it can be made even more preferable if it is improved like a drum knife for ropes.

That is, when closing the curtain 9, the starting end of the row 18 will be unraveled and the terminal end will be rolled up. At this time, there will be no problem if the loads applied to the two rows 18a and 8b are equal, but if the lower part The load on the lobe 8b side that operates the upper beam unit is the same as the load on the lobe 8b side that operates the upper beam unit.
This is because if the load is larger than the load on the a side, the rope 8b may climb up and become entangled with the rope 8a on the rope winding side, resulting in trouble in the opening/closing operation of the curtain 9.

The present invention aims to provide a drum for ropes that takes the above-mentioned circumstances into consideration, and instead of the conventional drum, a plurality of 7 rungs are spirally arranged around the outer periphery of the drum, similar to a double screw. This method attempts to prevent tangling by forming a plurality of spiral grooves and winding the ropes individually in each groove.

The following embodiment will be explained based on the drawings. As shown in FIG. Extend it into a spiral. And this parallel 2
Spiral groove 1 formed between 7 flange l2.12 of book
A set of two ropes 13a and 13b are individually wound inside each of the ropes 13a and 13b. As for winding, the starting ends of the two ropes 13a and 13b are locked to the right end of the drum 11, as in the conventional case, and then the ropes 13 & and 13b are individually placed into the spiral groove 14, and then wound to the left in the axial direction. (Viewed from the right). After winding several times, the rope 13 is pulled out, and one rope 13a is tensioned to the upper beam unit, and the other rope 13b is tensioned to the lower beam unit in a reciprocating manner. After tensioning both units, rope 13aS
13b are gathered together and wound around the remaining portion of the drum 11 without any gaps, and the terminal end thereof is locked to the left end of the drum 11. Note that the winding direction is not limited to this direction, and may be in the opposite direction. In addition, although this embodiment shows two 7-lunge 12 provided in parallel, three beam units are provided.
If you want to do heavy ropes, you will have to use a set of 3 ropes, so it is natural to use 3 ropes in parallel for 7 lunges.

In the drum shown in Figure 1, the seven flange 12 was integrally formed protruding from the outer periphery of the drum 11, but in this embodiment, instead of this, a plurality of linear bodies, for example, steel 11115, are wound in a spiral shape around the outer periphery of the drum 11. This steel wire 15 is used to form a spiral groove 14. In this way, the drum can be made at a much lower cost compared to forming the 7-lunge protruding integrally with the drum, and the spiral formed can be adjusted arbitrarily by adjusting the interval between the winding steel l515. The groove width of the groove 14 can be easily adjusted to the thickness of the rope 130. Furthermore, if the cross-sectional shape of the steel wire 15 is a rectangle whose height is larger than the width direction, the formed spiral groove 14 will be deep. Therefore, the inconvenience of the rope 13 climbing onto the other lobe can be reduced.

Since the device according to the present invention improves the drum for robes as described above, even if there is a difference in weight between the upper and lower curtains, the ropes for operating the curtains have the disadvantage of riding up and getting entangled with each other when wrapping the curtains around the drum. Since the problem can be solved, the curtain can be opened and closed smoothly.

4. The arrangement of multiple beam units F above the additional related greenhouse is a major part of the essential structure of the original invention;
The present invention also makes this point an essential part of the structure.

Furthermore, both inventions achieve the same purpose in that they coat the inside of the greenhouse in multiple layers.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the opening/closing device of the original invention, Fig. 2 is a front view showing the same drum, Fig. 3 is a front view showing the drum according to the invention, and Fig. 4 shows another embodiment of the drum. FIG. 11- drum, 12-7 lunge, 13- rope, 14- spiral groove, 15- steel wire.

Claims (1)

[Claims] 1. In the ceiling of the greenhouse, a plurality of beam units extending in the longitudinal direction of the greenhouse and spaced apart from each other in the width direction of the greenhouse are arranged at predetermined intervals in the vertical direction. After winding a plurality of ropes into a set on a rope drum, each rope is branched and reciprocated across the width of each of the beam units, and then each of the above After gathering the ropes, the end portions of these ropes are wound around the remaining portion of the drum, and curtains are respectively secured to the rope portions that move toward and away from each other in each beam unit. In the coating device, a plurality of seven rungs are spirally arranged around the outer periphery of the rope drum to form a plurality of spiral grooves, and the ropes are individually wound within the grooves. Multi-layer coating equipment. 2. The device according to claim 1, wherein a plurality of linear bodies are spirally arranged around the outer periphery of the drum to form a plurality of spiral grooves, and each of the ronibs is individually wound in the grooves. Greenhouse interior multi-layer cladding device.