JPS5998959A - Fixing of cover panel for greenhouse - 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 relates to a method for fixing a transparent sheet made of rubber-modified acrylic resin, a polycarbonate resin sheet, a glass fiber-reinforced acrylic resin sheet, or a greenhouse covering panel formed by shaping these resin sheets into a corrugated shape. It is. In particular, the purpose is to provide a fixing method that takes advantage of the excellent impact resistance of these resin sheets and allows self-tapping screws to be installed and fixed, while also being able to cope with expansion and contraction of the covering panel. It is.

Recently, synthetic resin panels have been increasingly used as covering panels for greenhouses, but hard resin panels other than films are often shaped into a wave shape to improve their rigidity. Generally, such panels are fixed to the building frame using hook bolts. However, although hook bolt fixing is reliable, it requires work on the inside and outside of the panel, which takes time. Reasons include that hook bolts are more expensive than regular bolts, and that if the fixing hole pre-drilled in the panel shifts to the point where the panels are stacked, the hook bolt cannot be inserted and the hole will need to be re-drilled. Therefore, this was required to be improved.

For this reason, in some cases, impact-resistant resin panels have been installed by self-tapping screws. This is shown in Figures 1 and 2, where self-tapping screws (B) are driven into the purlin material (C) while cutting directly into the panel (A), so there is not enough room for the fixing hole. Therefore, when the synthetic resin panel (a) expands and contracts and tries to move, it comes into pressure contact with the self-tapping screw (b). In a panel shaped like a wave, movement in the wave direction can be absorbed by the deformation of the wave shape, but it cannot be absorbed in the direction perpendicular to this, so the panel may warp in this direction or even cause fixation holes. The pressure may cause stress concentration around the area, resulting in cracks.

In view of this situation, the present invention is designed to fix with self-tapping screws, but to prevent expansion in the direction perpendicular to the waves.
The purpose is to prevent problems caused by shrinkage. In other words, the gist of the present invention is to position covering panels made of impact-resistant synthetic resin with a large number of waves perpendicular to the inclined or vertical directions so that the lower edge of the covering panel located above is positioned below. At the same time, a self-tapping screw is driven from above so that one edge of the covering panel can move due to expansion and contraction at the overlapping part of the covering panel. The first invention is a method for fixing a first layer panel for a greenhouse, which is characterized in that the covering panels are fixed in the same manner one after another, and the impact resistance is achieved by forming a large number of waves orthogonal to an inclined or vertical direction. A number of synthetic resin covering panels are stretched so that the lower edge of the upper covering panel is overlapped with the upper edge of the lower covering panel, and approximately the center of each covering panel is Driving self-tapping screws at every interval,
A method for fixing greenhouse covering panels, characterized in that the overlapped portions of the covering panels are locked to allow movement due to expansion and contraction, and the covering panels are sequentially fixed in the same manner. This is the second invention.

Hereinafter, the present invention will be explained according to the drawings of the embodiments.
5 to 5 show a first embodiment of the invention, and FIGS. 6 to 10 show a second embodiment of the invention.

First, to explain the first invention, in FIG. 3, there is shown a N and (1) cover panel, in which (11) is shown as the upper cover panel and (12) is shown as the lower cover panel, A method of fixing these covering panels (11) and (12) to each other is explained. In addition, this covered panel (1
) is made of a sheet made of impact-resistant synthetic resin, such as rubber-modified acrylic resin, polycarbonate resin, or glass fiber-reinforced acrylic resin, as described above. Panels are used in which waves are formed perpendicular to the direction. The thickness of the covering panel (1) at this time is approximately 0,
It is in the order of 5 to 2, and the width in the wave direction &'! 1,000-1
, 500 ho, the length in the direction perpendicular to this is 1,30
The wave pitch is generally about 0 mm and the wave pitch is about several tens of microns.

Such a cladding panel has an upper cladding panel (11) attached to the upper edge (a) of the lower cladding panel (12) as shown.
The lower edges (b) of the panels are overlapped and stretched, but at this time, a long elongated hole (12A) in the direction perpendicular to the waves is pre-drilled in the upper part (corresponding to aJ) of the covering center panel (12) located below. Then, place the upper covering panel (11) on top of this,
Drive the self-tap screws (2) through the gasket (4L turtle seat 17 shear (3). Note that (IIB) in the figure shows the self-tap screw driving point of the upper covering panel (11) as necessary. The self-tapping screw (2) used in the present invention is a general term for screws that are screwed together while thread cutting, and are, for example, called tapping screws, Tex screws, screw nails, screw screws, etc. Includes screws that are

When you drive the self-tapping screw (2) in this way,
The self-tapping screw (2) threads the covering panel (11) 'Y' and further threads the purlin material (8) so that it is firmly fixed. Therefore, such a self-tapping screw (
Since the covering panel (11) can be fixed by pouring in 2), there is no need to work below the covering panel as in the case of using hook bolts, which further improves work efficiency and reduces construction costs. The covering panel (1) fixed in this way can be stably fixed, while expansion and contraction in the wave direction is absorbed by the deformation of the wave shape, and the upper edge of the covering panel (12) in the direction perpendicular to this is absorbed by the deformation of the wave shape. The elongated hole (12A) in part (a) allows for some movement and expansion in this direction.

The scales absorb as much shrinkage as possible. In Figure 3, the upper covering panel (11) and the lower covering panel (12) are shown.
) We have explained how to fix each other, but from now on, we will fix them in this way sequentially, and cover panels (1) will be stretched over a wide area.
Can be fixed.

Figures 4 and 5 show other examples of the first invention, in which the movement at the overlapping portion of the upper covering panel Ql) of the work V' and the lower covering panel (12) is shown in Fig. 4. An example is shown in which a rubber gasket (5) is interposed between these so that the surface is smooth. Furthermore, FIG. 5 shows an example in which a non-woven fabric packing (6) for removing water droplets in a greenhouse is similarly interposed between the overlapped portions of both covering panels [) and (12).

Next, the embodiment of the second invention of the present invention is shown in FIGS. 6 to 1.
This will be explained based on diagram O. Fig. 6 shows a state in which the covering panels (11) and (12) have already been fixed to each other, but in this case, the self-tag screws (2) are not driven into the overlapping parts, and each covering panel ( 11) t (12) It is poured at approximately the center of the pile at every other pile. Of course, the covering panel (1) in the second invention is also the same as that in the first invention. The purlin material (8) is further located at the location where the self-tapping screws (2) are to be driven, but the mutual covering panels (11)? At the overlapping part of (12), there is a locking device (7) that can move in the direction perpendicular to the waves.
Car is used.

As shown in FIG. 7, this locking tool (7) is formed using a metal wire and includes a corrugated portion (71), a fitting portion (72), and a hook portion (73). With such a configuration, the locking tool itself has some elasticity, but if the fitting part (72) is provided with a movement allowance (J), the covering nozzle (12) can be moved in this direction. ) movement becomes possible, and the movement of expansion and contraction can be absorbed. Therefore, in the case of the second invention, the substantially central part of the covering panel (1) is fixed with the self-tapping screw (2), and the expansion and contraction movements in the direction perpendicular to the waves are performed at the overlapped parts at both ends. This is what I am trying to do. Of course, since the wave direction is absorbed by the deformation of the wave shape, the covering flannel (1) can be easily fixed without any trouble caused by expansion or contraction.

8 and 9 show other examples of the locking tool used in the present invention. The locking tool (7') in FIG. 8 is the locking tool (7') shown in FIG. This is basically the same as 7), but the wave-pressed wood part (71') is pressed down by two crests. Also, Fig. 9 & Locking tool (7') obtained by sheet metal processing
This is an example. Fig. 10 also uses another locking tool (7'') to secure it, but in this case, the locking tool (7'') &
Using a molded material made of aluminum etc., the holding part (71"
') and the insertion part 6 (72") are opened symmetrically to each other, and the insertion part (72") is connected to the hook part (73"). In this case, the purlin material (8 ) in the opposite direction (1°) Since the present invention has the structure as described in detail above, it is possible to fix the covering panel with ease using self-tapping screws, and also to fix the covering panel in place. This expansion absorbs the movement caused by expansion and contraction in the direction perpendicular to the waves,
This has the advantage of providing a fixing method that prevents troubles due to shrinkage.

[Brief explanation of drawings]

1 and 2 are perspective views showing other examples of conventional fixing structures, and FIGS. 6 to 10 show embodiments of the second invention of the present invention, and FIG. FIG. 7 is an enlarged perspective view of the portion shown in FIG. FIG. 8 is an enlarged perspective view corresponding to FIG. 7 in the case of fixing using a screwdriver. (1)... Covering panel (11)... Upper covering panel (12)... Lower covering panel (a)... Advanced (b)...・Lower edge (2)... Self-tapping screw (7)... Locking tool (8)... Purlin wood strand 71 yen 1 piece 8 (121 7' Skin q figure hole) lO diagram

Claims (1)

[Scope of Claims] 1. Covering panels made of impact-resistant synthetic resin in which many waves are formed perpendicular to the inclined or vertical direction are connected to each other, and the lower edge of the covering panel located above is covered with a covering located below. At the same time as overlapping the upper edge of the panel and stretching it, one edge of the covering panel expands at the overlapping part of the covering panel.
A method for fixing a covering panel for a greenhouse, characterized in that self-tag screws are driven from above to allow movement due to contraction, and the covering panels are fixed in the same manner one after another. 2. Cover panels made of impact-resistant synthetic resin with a large number of waves perpendicular to the inclined or vertical direction are stacked so that the lower edge of the upper cover panel is placed over the upper edge of the lower cover panel. At the same time, self-tapping screws are driven approximately every few threads approximately in the center of each covering panel, and the overlapping parts of the covering panels are locked so that they can move by expansion and contraction. A method for fixing a greenhouse covering panel, characterized in that the covering panels are sequentially fixed in the same manner.