JPH0351372B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of the Invention The present invention relates to a method for stretching sheets such as curtain films on the ceiling of a greenhouse.

(b) Background of the Invention As shown in Fig. 8, wires c are strung on the ceiling b of the greenhouse a at intervals of about 50 cm.
A curtain film d is laid on this wire c,
This was to prevent the warm air inside the greenhouse from escaping upwards.

The method for laying the curtain film d described above is to first pass a guide string over the wire c, tie one end of the curtain film d to the guide string, and pull the other end of the guide string to move the curtain film d onto the wire c.
It was strung above.

However, as the ceilings of greenhouses have recently become higher, it is difficult and time consuming to pass the guide strings over the wires one by one.

Furthermore, after passing the guide string over the array wire c, tie the rear end of the guide string and the front end of the curtain film, and pull the guide string toward the front end to tension the curtain film over the array wire c. At that time, the above-mentioned knot got caught on wire c, and each time I had to pull the guide string while unhooking it with a bamboo stick or the like.

In addition, since the curtain film does not unwind smoothly, a worker is required to assist in unwinding the curtain film.

(c) Purpose of the Invention This invention allows a guide string to be stretched extremely easily and quickly by sliding it over a linear body such as a wire using a guide string threading tool, and a sheet such as a curtain film is attached to the guide string. The object of the present invention is to provide a sheet tensioning and threading method capable of connecting and passing a sheet over the upper surface of a linear body.

(D) Summary of the Invention This invention provides for passing the sliding body of a guide string passing tool between the absorbing bodies, passing through the seat supporting linear body, and passing the guide string onto the upper surface side of the seat supporting linear body. The rear end is divided into a plurality of pieces, the divided strings are inserted into the intermediate position of the hemisphere and fastened inside, the tip of the sheet is fastened within the opening surface of the hemisphere, and the guide string is pulled. The present invention is characterized in that it is a sheet stretching method in which the sheet is passed over the upper surface of the sheet support linear body.

(E) Effects of the Invention According to the present invention, the guide string can be slid over a linear object such as a wire using the guide string threading tool, and the guide string can be inserted into the upper surface of the linear object extremely easily and quickly. When the rear end of this guide string is divided and connected to the intermediate position of the hemisphere, and a sheet is connected inside between the hemispheres and the guide string is pulled, the hemisphere and the split string cross over the linear body. It serves as a guide for the sheet, and can prevent the hemisphere from getting caught on the linear body due to the angle of inclination of the split string and the spherical surface of the hemisphere.As a result, the sheet can move over the linear body smoothly and quickly. This allows sheet tensioning work to be completed in a short time.

(F) Embodiment of the Invention An embodiment of the invention will be described in detail below based on the drawings.

The drawings show a sheet tensioning and threading method, and in FIG. 1, a guide string threading tool 1 consists of a sliding body 2 whose flat sliding surface is formed by magnets 2a, and an adsorbent body 3 formed of thin plate spring steel. , the tip of the above-mentioned sliding body 2 is a warped part 4 bent outward (downward in the figure).
The lower surface of the curved portion 4 is attached to the upper end of the handle 5.

The tip of one end of the adsorbent 3 is formed into a warped part 6 bent outward (upward in the figure), and the other end is bent upward to form a mounting part 8 for the guide string 7. .

To explain the function of the guide string threading tool configured in this way, as shown in FIG.
Hold the curved portions 4 and 6 between the sliding surface 2 and the absorbent body 3.
When the wire 9 to be passed is positioned between the two (see Figure 3 A) and the sliding body 2 is advanced along the wire 9 via the handle 5 (see Figure 3 B),
After the warped portion 6 of the adsorbent 3 is further warped, it is adsorbed to the sliding body 2 (see c in the same figure), and in this state, it passes between the sliding body 2 and the adsorbent 3, and the adsorbent 3
By bending back the rear end (see d in the same figure), the wire 9 can be passed through, and the guide string 7 can be advanced over the wire 9. This operation is sequentially repeated for the arranged and stretched wires 9. Then, the guide string 7 is stretched over the array wire 9.

Next, the case where the curtain film is stretched over the array wires using the above-mentioned guide strings will be explained with reference to FIGS. 4 and 5.

The tip side of the tensioning guide string 7 can be pulled from the ground below via a hanging pulley 11, and the guide string 7
After passing the auxiliary ring 12 through the rear end, the tips of the plurality of split strings 13 are tied together.
is passed through a hole 15 formed in the middle of the bowl-shaped plastic hemisphere 14, and a curtain film 16 is fastened to the rear end. At this time, when the split string 13 is pulled, the fastening portion is housed inside the hemisphere 14.

The rear end side of the curtain film 16 is connected to the rotating roller 1.
Both ends of a wire 18 through which a large number of wires 7 are inserted are suspended so that the wire 18 passes over the rotating rollers 17.

Then, by pulling the guide string 7 below the pulley 11 mentioned above, the curtain film 16 is stretched over the array wire 9 via the guide string 7.

Since the auxiliary ring 12 is provided in front of the knot 19 between the guide string 7 and the curtain film 16,
Conventionally, the knot was caught on the wire, but the auxiliary ring 12 is tilted at the wire 9 position so that the knot 19 can easily pass through the wire 9.

Further, the knot 20 between the guide string 7 and the curtain film 16 is hidden within the hemisphere 14, and the split string 1
Wire 9 with an external inclination of 3 and a peripheral angle of the hemisphere 14
Move forward without getting caught.

Further, a large number of rotating rollers 17 are arranged on the wire 18 on the feeding side of the curtain film 16, and the curtain film 16 is fed out via the rotating rollers 17, so that the tension on the guide string 7 side allows the curtain film 16 to be fed out easily. Rolls out smoothly.

Next, to explain how to pass the guide string in a double curtain facility with reference to FIG. , upper front wire 9b
, and then the upper wires 9b, 9d, 9f by passing the wires 9c, 9d, 9e, and 9f sequentially.
A guide string can be strung on top.

It should be noted that the hemisphere 14 may be formed into a pyramidal or substantially trapezoidal shape as long as it can cross over the wire 9.

(g) Other embodiments In the guide string passing tool 1 shown in FIG. 7, the diameter of the wire 9 is large, and after the wire 9 has passed, the
An example is shown that is effective when the floating object becomes large and difficult to be attracted to the sliding body 2.

That is, the magnet 2a of the sliding surface 2 is divided into front and rear parts, and a recess 2b in which the large diameter wire 9 can be accommodated is formed on the sliding surface between the divisions.

When formed in this way, when the large-diameter wire 9 is passed through, even if the suction 3 floats significantly in the front half,
By storing the large-diameter wire 9 in the recess 2b at the intermediate position, the front half of the floating adsorbent 3 is attracted to the front magnet 2a, and then the large-diameter wire 9 moves the rear half of the sliding body 2. Even if it moves, the adsorbent body 3 will move to the sliding body 2.
The large diameter wire 9 can be passed through without coming off.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of a sheet tensioning guide string threading tool, FIG. 2 is a simplified perspective view showing the tool in use, and FIG.
B, C, and D are explanatory diagrams showing the operating state of the same tool, FIG. 4 is a perspective view showing the coupled state of the guide string and the curtain film, FIG. FIG. 6 is an explanatory diagram of a double curtain facility, FIG. 7 is a side view showing another example of a guide string threading tool, and FIG. 8 is a perspective view of a greenhouse. 1... Guide string passing tool, 2... Sliding body, 3... Adsorption body, 7... Guide string, 9... Wire (linear body), 16
...Curtain film (sheet).

Claims (1)

[Scope of Claims] 1. A guide string threading tool is provided in which an attracting body of a magnetic material is attracted to a sliding body whose sliding surface is formed of a magnet, and a guide string is attached to the rear end of the attracting body of a guide string threading tool, each of which has a curved tip. between the sliding body and adsorption body of the guide string threading tool,
Passing through the seat support linear body, a guide string is passed through the upper surface side of the seat support linear body, the rear end of the guide string is divided into a plurality of pieces, and the divided strings are inserted into the middle position of the hemisphere. A sheet tensioning and threading method comprising: fastening the sheet tip inside the hemisphere, and pulling the guide string to pass the sheet over the upper surface of the sheet support linear body.