JPH0210923Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a greenhouse in which a transparent or translucent synthetic resin sheet is spread, and when a part of the sheet is sagging, this sagging part is pushed up. The present invention relates to a sheet sag corrector that corrects the entire sheet to the same level, and is particularly suitable for hard sheets.

[Conventional technology]

In general, a pipe house, which is a greenhouse made of hard or soft synthetic resin sheets, has a large number of arch-shaped pipes erected underground, and a sheet support frame with a narrow opening is installed between each pipe. The synthetic resin sheet is held through the fastening strips, and this allows the sheet to be spread over the roof, walls, and gables of the pipe house.

The base ends of the arched pipes are manually inserted into the ground, and the insertion depth is adjusted to equalize the height of each pipe.

[Problem that the invention attempts to solve]

However, hard sheets and soft sheets are used for synthetic resin sheets, and in the case of soft sheets, since they are stretchable, sufficient tension can be obtained when held on the support frame with locking lines, and the entire pipe house can be uniformly stretched. It is expanded with height and tension.
However, hard sheets have high rigidity and do not easily expand or contract, so even if they are held in the support frame with locking lines, sagging, unevenness, and wrinkles will inevitably occur in the parts that are not held. Put it away.

On the other hand, when an arch-shaped pipe is inserted underground and stood up as described above, wind, rainwater, etc.
Due to the influence of the soil, some pipes may float or penetrate deeply into the soil, resulting in uneven pipe heights. If the height of the pipes is uneven, especially in the part of the pipe where the height is low, the pipe cannot support the sheet, regardless of whether it is a hard sheet or a soft sheet, and a part of the sheet will sag. There are cases. For this reason, the strength of the sagging portions of the sheet decreases, and there is a risk that the sheet will break, or rainwater will accumulate in these sagging recesses, placing a large downward load on the entire sheet.

On the other hand, if the heights of the arched pipes are uneven, this can be corrected by adjusting the height of each pipe each time, but once assembled, the height of each pipe cannot be adjusted one by one. First, the entire structure of the pipe house needs to be dismantled and reassembled.
For this reason, there are problems in that the workability is difficult and the cost is extremely high.

Therefore, the purpose of the present invention is to provide a system especially suitable for use with hard sheets, which can be easily corrected by pushing up when a hard sheet is stretched or when the sheet sag partially due to irregular pipe heights. It is an object of the present invention to provide a suitable sheet sag corrector.

[Means for solving problems]

In order to achieve the above object, the structure of the present invention is characterized by comprising a holding part held by a pipe, and a pair of spring pieces rising obliquely upward from both sides of the holding part.

[Effect]

When the sheet sag corrector is inserted below the sagging part of the sheet and held in the pipe, the spring piece pushes the sheet up with spring force.

〔Example〕

FIG. 1 shows a correction tool 1 according to an embodiment of the present invention.

The correction tool 1 has a semicircular holding part 2 at the center, and curved spring parts 3, 3 are provided on both sides of the lower part of the holding part 2, and a V-shape is formed diagonally upward from the spring parts 3, 3. It has spring pieces 4, 4 that extend while expanding.

The spring pieces 4, 4 have curved seat support pieces 5, 5 at the top.

In order to increase the spring effect, spring parts 3, 3 are provided, and spring pieces 4, 3 are provided at arbitrary positions of the holding part 2.
4 may be made to stand.

The holding part 2 fits into the upper part of the arched pipe 6 and is held by the pipe 6, and at this time, the spring pieces 4, 4 stand upwardly, and the sheet supporting pieces 5, 5 directly contact the hard or soft sheet 7. , the sheet 7 is pushed upward by the spring action and tension is applied.

FIGS. 2 and 3 show examples of use in which a support frame 8 is interposed as means for supporting the seat 7.

The support frame 8 consists of a frame 9 with a narrow opening that opens downward, and a horizontal plate 11 that is connected to the frame 9 via a groove frame 10. The support pieces 5, 5 are fitted inside, the spring pieces 4, 4 support the support frame 8, and the horizontal surface of the support frame 8 pushes up the sheet 7 uniformly.

Figure 4 shows an example of actual use in a pipe house.

The pipe house 12 is erected by inserting the base ends of a large number of arch-shaped pipes 6 into the ground, and each pipe 6 is erected with a sheet support frame 13 having a narrow opening width in the lateral direction. The sheet 7 is held through a locking line 14 and spread uniformly over the roof, wall and gable surfaces of the pipe house 12.

If the sheet 7 is a hard sheet, sagging inevitably occurs when the sheet 7 is stretched, so this sagging portion is partially corrected.

Similarly, in the assembled pipe house 12 even when a soft sheet is stretched, the height of each pipe 6 may become unstable due to the pipes 6 wobbling due to wind pressure during long-term use, or the soil at the base end of the pipe becoming loose due to the intrusion of rainwater. The height may change. For this reason, when some of the pipes 6 sag and become lower in height, the sheet 7 on the roof surface of the lower pipe 6 sags downward, causing the sheet 7 to break or cracks to occur. , water collects in the sagging part, and in this case also correct the sagging.

Therefore, in the case of a hard pipe, the correction tool 1 of the present invention is applied to the slack portion. In addition, in the case of using either a hard sheet or a soft sheet, when some of the pipes 6 are submerged, the correction tool 1 of the present invention is inserted between the submerged pipes 6 and the sheet 7, The holding part 2 is fitted onto the pipe 6, and the upper support piece 5 of the spring piece 4 is brought into contact with the lower surface of the sheet 7. At this time, the sheet 7 is pushed upward by the height of the spring piece 4, and the slack of the sheet 7 is corrected.

If there are several slack parts, the correction tool 1 is interposed corresponding to the slack parts.

Since the spring piece 4 has a spring action, when it is interposed between the pipe 6 and the sheet 7, the pipe 6 and the sheet 7
It can be bent up and down depending on the size of the gap between them.

In the above usage example, the seat 7 is supported independently by the correction tool 1, but in other usage examples,
Similarly, as shown in FIG. 4, on the plurality of pipes 6, for example, support frames 8a, as shown in FIG.
8b, pipe 6 and support frames 8a, 8b
A correction tool 1 is interposed in between, and the holding part 2 of the correction tool 1 is fitted into the pipe 6, and the upper support piece 5 of the spring piece 4
are fitted into the lower grooves of the support frames 8a and 8b.

At this time, the support frames 8a, 8b are pushed upward by the spring pieces 4 of the correction tool 1, and the upper surfaces of these support frames 8a, 8b abut against the lower surface of the sheet 7, so that the deflection of the sheet 7 is corrected.

FIG. 5 shows a sheet sag corrector according to another embodiment of the present invention.

This correction tool 1a is substantially the same as the correction tool 1 shown in FIG.
The notched hook pieces 5a, 5a are bent upward so as to be parallel to the support pieces 5, 5. However, the hooking pieces 5a, 5a may be formed by connecting different plates.

This correction tool 1a holds the sheet 7 with hook pieces 5a, 5a.
It is supported by pushing up on the top surface.

On the other hand, as shown in FIGS. 6 and 7, the support frame 8 shown in FIG. , 4 push up the support frame 8, and the support frame 8 supports the sagging sheet 7 to correct the sagging.

FIGS. 8a, b, c, and d show examples in which the correcting tools 1 and 1a of FIG. 1 or 5 are used to push up the support frame.

In FIGS. 8a and 8b, the support frames 8c and 8d consist of a horizontal plate and a groove provided at the bottom thereof, and the support frame 8e in FIG. 8c consists of a grooved frame and a horizontal plate provided on the side thereof. Support frame 8 in Figure 8d
A groove f is provided in the center of the horizontal plate and bulges upward, and the spring pieces 4 are fitted into the groove of each support frame.

[Effect of idea]

According to the present invention, there are the following effects.

When a hard sheet with poor elasticity and rigidity is stretched, unevenness of the sheet inevitably occurs.
If a correcting tool is interposed opposite the sagging or wrinkled portion, tension is applied by the correcting tool, these unevenness, sagging, and wrinkles are corrected, and the sheet is spread out uniformly.

Regardless of whether it is a hard sheet or a soft sheet, when a part of the pipe sag and the sheet sag, simply hold the correction tool in the sagging part, in other words, in the part where the height of the pipe is low, and the sheet can be fixed. Sagging is partially corrected. Therefore, even if the heights of the pipes vary, emergency treatment can be performed without having to adjust the heights of the pipes one by one.

The amount of strain in the pipe varies from pipe to pipe, so the gap between the pipe and the seat is not constant, but when a correction tool is inserted between the pipe and the seat, the spring force of the spring piece will adjust the height of the spring piece. can follow the size of the gap.

Since the structure is simple, it is easy to process, and the cost is low, making it highly economical.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a sheet sag corrector according to an embodiment of the present invention, Fig. 2 is a perspective view of the seat sag corrector when used in combination with a support frame, and Fig. 3 is a perspective view of the seat sag corrector according to an embodiment of the present invention.
4 is a perspective view when used in a pipe house, FIG. 5 is a perspective view using a correction tool according to another embodiment of the present invention, and FIGS. 6 and 7 are 5 A perspective view and a longitudinal front view when the correction tool and support frame shown in the figure are used in combination, Figure 8 a, b, c,
d is a longitudinal sectional front view showing another combination of a support frame and a correction tool. DESCRIPTION OF SYMBOLS 1, 1a... Correction tool, 2... Holding part, 3... Spring part, 4... Spring piece, 5... Seat support piece, 5a
...Hatch piece.

Claims (1)

[Claims for Utility Model Registration] (1) A sheet sag corrector consisting of a holding part held on a pipe and a pair of spring pieces standing diagonally upward from both sides of the holding part. (2) The sheet sag corrector according to claim 1 of the utility model registration, wherein the holding portion is semicircular. (3) The seat sag corrector according to claim 1, wherein the pair of spring pieces expand in opposite directions and have a curved seat support piece at the top. (4) The seat sag corrector according to claim 1 or 3, wherein the base ends of the pair of spring pieces are connected to the holding part by a curved spring part. (5) The seat sag corrector according to claim 3 of the utility model registration claim, wherein a hook piece is provided on the upper part of the seat support piece.