JP2678378B2 - Installation method of synthetic resin corrugated sheet - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transverse corrugated sheet installation method applied when a synthetic resin transverse corrugated sheet that is long in the horizontal direction is attached to a roof or the like of a greenhouse.

2. Description of the Related Art Conventionally, for example, when roofing a greenhouse such as a greenhouse for rapid cultivation of crops, horizontally long corrugated plates made of synthetic resin such as polycarbonate and polyvinyl chloride extend in several steps, and their side edges are partially formed. It was attached so that it overlapped.

The advantages of roofing with such corrugated sheet are:
First of all, since the transverse corrugated sheet is long in the horizontal direction, the number of joints in the vertical direction is very small, so that the leakage of rainwater can be sufficiently prevented and the appearance after construction is very beautiful. Secondly, the dew condensation water in the greenhouse is discharged smoothly, and the sliding of snow on the corrugated sheet is very good, so that no snow remains on the roof. Thirdly, the strength is very high, and therefore, there is no fear of cracking the transverse corrugated sheet even if an operator rides on the transverse corrugated sheet during construction, and the construction safety is high. Excellent weather resistance and durability.

Problems to be Solved by the Invention Although there are many advantages to wiping a roof using a synthetic resin transverse corrugated sheet in this way, when the transverse corrugated sheet is wiped horizontally from the eaves side of the roof to the ridge side in sequence, For example, as shown in FIG. 4, the eaves-side edge (11
a) to the edge (11b) of the previously attached transverse corrugated plate (11)
When the fixing parts (16) are fixed so that they overlap each other, the edge (11b) of the unfixed side (ridge side) of the transverse corrugated plate (11) is deformed into a mountain shape and swells. It was
Then, by pressing this part so that it is flat and further fixing the eaves side edge (11a) of the next transverse corrugated plate (11), the edge of the next transverse corrugated plate (11) on the unfixed side (ridge side). (11b) further deforms and bulges like a mountain, and such deformations occur one after another, resulting in waviness and distortion in the transverse corrugated plate (11) attached to the roof (13). However, there was a problem that the appearance of the roof (13) after construction was very poor.

The present inventor has made various investigations as to the cause of the above problem, and as a result, the bulging deformation of the side edge portion of such a transverse corrugated sheet is caused by the manufacturing error in the average pitch of the corrugated crest portions of the transverse corrugated sheet. Transverse corrugated sheets that are different and adjacent to each other, if the difference in their average pitch exceeds 0.3 mm,
It was also found that when the side edges of the transverse corrugated sheet with a large average pitch are overlapped with the side edges of the transverse corrugated sheet with a small average pitch of the corrugated peaks, in particular.

Therefore, on roofs of greenhouses, etc., (i) wipe only the transverse corrugated plates with a difference in average pitch of corrugated peaks of 0.3 mm or less from the bottom, or (ii) average pitch of corrugated peaks is within the allowable error range. It is considered that the above problem can be solved by spreading the transverse corrugated sheet so that the side edge portion of the large transverse corrugated sheet overlaps the side edge portion of the small transverse corrugated sheet.

However, in general, a synthetic resin transverse corrugated sheet is formed by the same or the same type of molding machine equipped with a pair of upper and lower caterpillar pressing rollers (see, for example, Japanese Examined Patent Publication No. 357571).
It is a so-called lot production that is repeatedly manufactured at intervals, and normally, products that are produced according to the order of the store are shipped one after another. Since it is necessary to randomly obtain the plates, and it is actually impossible to obtain only the transverse corrugated plates with a difference in the average pitch of the corrugated peaks being within 0.3 mm, the method of (i) above is used. It is difficult to wipe the roof, etc., and it is very troublesome for the user to measure whether the average pitch of the corrugated peaks is large or small within the allowable error range. Since it is difficult for general users to distinguish
It is also impossible to wipe the roof by the above method (ii).

The present invention has been made in view of the above-mentioned circumstances, and a transverse corrugated sheet is very easily and extremely workable on a roof or a side wall of a greenhouse, and the side edge portions do not have a mountain-shaped bulging deformation. To provide a method for installing synthetic corrugated sheet made of synthetic resin that can be installed very neatly in a state without undulations and distortion, and can improve the finish and efficiency of work such as roofing. Has an aim.

Means for Solving the Problems In order to achieve the above object, the present invention relates to a large number of transverse corrugated sheets repeatedly produced at intervals with a molding machine in the production stage of a long synthetic resin transverse corrugated sheet, respectively. Measure the average pitch of the wavy peaks of
Within the allowable error range, the value of the average pitch of the corrugations is divided into a first group that is smaller than a certain reference value and a second group that is larger than the same reference value. At the step of attaching the identification mark (A) or (B) indicating whether it belongs to the group and the step of attaching the transverse corrugated plate to the greenhouse roof etc., the required number of transverse corrugated plates obtained at random is identified as the above identification mark (A) or (B). In accordance with the above, the lateral edges of all the corrugated sheets having the identification indication (B) of the second group in which the value of the average pitch of the corrugated peaks is larger than a certain reference value are divided into two groups according to After horizontally mounting so that they partially overlap each other, a transverse corrugated plate having a first group of identification indications (A) in which the value of the average pitch of the corrugated crests is smaller than a fixed reference value is partially formed on the side edges thereof. I will overlap Horizontal becomes more and process of attaching the, are summarized as mounting method of applying the synthetic resin shear plate.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

With reference to FIGS. 1 to 3, the method for attaching and mounting a synthetic resin transverse corrugated plate according to the present invention comprises the following two steps.

First step Horizontally long transverse corrugated sheet (1) is made of polycarbonate,
It is made of transparent or translucent synthetic resin such as polyvinyl chloride, and has a width of, for example, 600 to 1000 mm.

At the manufacturing stage of such a synthetic resin transverse corrugated sheet (1), a large number of pieces are repeatedly manufactured and coiled in a so-called lot production system by the same or the same type of caterpillar molding machine (not shown). Corrugated sheet (1)
The average pitch (P) of each corrugated crest (2)
Was measured, and all the transverse corrugated plates (1) were subjected to the first group in which the average pitch (P) value of the corrugated crests (2) was less than a fixed reference value of 25.0 mm within a tolerance of 0.3 mm, that is, 24.7 mm to 25.0 mm group and the same standard value of 25.0
Each transverse corrugated sheet (1) is divided into a second group larger than mm, specifically a group larger than 25.0 mm and smaller than 25.3 mm.
Is attached with an identification display (A) or (B) indicating which of the first and second groups it belongs to. In this case, the reference value 25.0 mm may belong to either (A) or (B).

In addition, at the side edges (1a) (1b) in the longitudinal direction on the eaves side and the ridge side of each transverse corrugated plate (1), cross-shaped positioning marks (4) every four ridges are drawn with ink or paint ( Mark 5) facing each other.

Second step Then, at the stage of attaching the transverse corrugated sheet (1) to the roof (3) of the greenhouse shown in FIG. 1, the four transversely corrugated sheets (1) obtained at random are identified as the above identification marks (A) or (B).
According to FIG. 1 and FIG. 2 and FIG. 3, the greenhouse roof (3) has a large average pitch (P) of the corrugated ridges (2). Two transverse corrugated sheets (1) having a group identification (B) are horizontally attached in order from the eaves side of the roof (2) of the greenhouse so that their side edges partially overlap each other, and then the corrugated mountain is placed. The remaining two transverse corrugated plates (1) having the first group of identifications (A) with a small value of the average pitch (P) of the parts (2) are mounted horizontally such that their side edges partially overlap.

Here, the procedure of the second step will be described in more detail.

On the upper surface of the roof (3) of the greenhouse, main building materials (corrugated sheet supporting horizontal members) (4) are provided in parallel with each other at predetermined intervals. When wiping the roof (3) of the greenhouse using the transverse corrugated sheet (1), first of the transverse corrugated sheets (1) divided into two groups, the value of the average pitch (P) of the corrugated peaks (2) is large.
The coil-shaped transverse corrugated sheet (1) having a group identification mark (B) is unrolled at the eave side edge of the lower end of the roof (3) so as to be unwound, and the lower side of the first-stage transverse corrugated sheet (1). Fixing the edge (1a) with nails or bolts / nuts (6)
To fix it to the first eave-side main building material (4a).

Then, the upper edge (1
In b), the coiled transverse corrugated plate (1) of the second stage having the identification display (B) of the second group in which the average pitch (P) of the corrugated crests (2) is also large, The edge part (1a) is arranged so that it partially overlaps with the upper edge part (1b) of the transverse corrugated plate (1) of the first step, and one end of the edge part is aligned with the fixture (6) such as the nail. After fixing by using the coiled transverse corrugated sheet (1) of the second stage, the coiled transverse corrugated sheet (1) is unrolled in order to be unwound. The upper edge (1b) of the first-stage transverse corrugated plate (1) is fixed together with the second purlin (4b) using a fixture (6) such as a nail.

Next, the upper edge (1
In b), this time, the third stage coiled transverse corrugated plate (1) having the identification display (A) of the first group in which the value of the average pitch (P) of the corrugated crests (2) is small, The side edge (1a) is arranged so as to partially overlap with the upper edge (1b) of the second corrugated plate (1), and one end of the side edge (1a) is aligned with the fixture (6) such as a nail. After fixing by using the coiled transverse corrugated plate (1) of the third stage, the coiled transverse corrugated plate (1) of the third stage is unrolled and unwound in this state. The upper edge (1b) of the second corrugated sheet (1) is fixed together with the third purlin (4c) using a fixture (6) such as a nail.

Finally, the fourth step coiled transverse corrugated plate (1) having the identification display (A) of the first group in which the value of the average pitch (P) of the corrugated crests (2) is small is the same as the above case. It is fixed to the next main building material (4d).

In addition, in the above, when each transverse corrugated sheet (1) is attached to the roof (3), the mountain portion (2) to which each of the positioning marks (5) is attached is fixed to the fixture (6). First, temporarily fix it, and after mounting all the transverse corrugated plates (1), sequentially fix the remaining ridges (2) to which the markings (5) are attached by the fixtures (6). This is preferable because the workability of attaching the transverse corrugated plate (1) is further improved.

In this case, for example, when the transverse corrugated plates (1) of the second and subsequent stages are extended and the peaks (2) thereof are displaced from the peaks (2) of the adjacent lower transverse corrugated plates (1), their positioning is performed. Since the position of the working mark (5) is displaced, it can be immediately discriminated. Therefore, the lower edge (1a) of the corrugated plate (1) is displaced so that the mark (5) is superposed. Thus, the lateral corrugated plate (1) in the second and subsequent stages can be accurately positioned very easily and reliably.

The positioning mark (5) of each transverse corrugated plate (1) is preferably provided on the upper and lower side edge portions (1a), (1b) so that the distance (d) from each end is, for example, 30 to 100 mm. In this case, the lateral edge portions (1a) (1
b) The overlapping margin (L) of the comrades is twice the distance (d) from the end of the transverse corrugated plate (1), and is therefore 60 to 200 mm.

The overlap margin (L) is determined by the type of material of the transverse corrugated sheet (1), the thickness, the slope of the roof (2), and the like. The larger the slope of the roof (2), the overlap margin (L). ) Is set small. The positioning marks (5) are preferably provided at every 4 to 6 peaks or valleys, and their shape is arbitrary. Of course, the transverse corrugated plate (1) may not be provided with the positioning mark (5).

Comparative Experimental Example The following experiment was conducted to confirm the effect of the method of mounting and attaching the transverse corrugated sheet according to the present invention.

In the stage of wiping the roof (3), preparing two transverse corrugated sheets (1) each belonging to the two groups (A) and (B) divided in the first step of the above example and having a length of 5 m,
According to the method of the present invention, the transverse corrugated plate (1) having the identification display (B) of the second group in which the value of the average pitch (P) of the corrugated crests (2) is large is arranged on the lower side (eave side), and the average pitch is The transverse corrugated sheet (1) having the identification display (A) of the first group having a small value of (P) is arranged on the upper side (ridge side), and the side edges where the both sides overlap each other are 4 piles on the main building material (4). The height of bulging deformation of the overlapping side edge of the upper transverse corrugated plate (1) (mm) and the height of bulging deformation of the non-fixed side edge of the transverse corrugated plate (1) (mm) ) Was measured respectively.

In this measurement, the difference between the average pitches (P) of the wave crests (2) of the upper and lower transverse corrugated plates (1) and (1) was 0.2 mm, 0.3 mm and 0.
This was performed for the cases of 4 mm and 0.5 mm. The results obtained are summarized in Table I.

Next, contrary to the above case, the transverse corrugated plate (1) having the identification display (A) of the first group in which the value of the average pitch (P) of the corrugated crests (2) is small is placed on the lower side (eave side). Placed in
The transverse corrugated sheet (1) having the identification display (B) of the second group having a large average pitch (P) value is arranged on the upper side (ridge side), and the side edges of the two that overlap each other are used as the main building materials (4). Four
In the case of fixing each mountain, the height (mm) of the bulging deformation of the overlapping side edge of the upper transverse corrugated plate (1) and the height of the bulging deformation of the unfixed side edge of the transverse corrugated plate (1) ( mm) similarly,
The results obtained are shown in Table II.

In the above, referring first to Table I, the transverse corrugated plate (1) having the identification indication (B) of the second group in which the value of the average pitch (P) of the corrugated crests (2) is large by the method of the present invention.
Is disposed on the lower side (eave side), and the transverse corrugated plate (1) has the identification display (A) of the first group having a small average pitch (P) value.
In the case of arranging on the upper side (ridge side), swelling deformation does not occur on the overlapping side edge portion and the unfixed side edge portion of the upper side corrugated plate (1) regardless of the difference in the peak average pitch (P). It was

On the other hand, as shown in Table II, conversely, the waveform peaks (2)
Of the second group having a large average pitch (P) value, the transverse corrugated plate (1) having the identification display (A) of the first group having a small average pitch (P) value is arranged on the lower side (eave side). When the transverse corrugated plate (1) having the identification mark (B) is arranged on the upper side (ridge side), if the difference between the peak average pitches (P) is 0.2 mm, no bulging deformation occurs, but the average pitch The difference of (P) is
When it was 0.3 mm, swelling deformation of 3 mm occurred at the overlap side edge and 20 mm at the non-fixed side edge. However, within this range, the finish of the roof after construction is not affected and the appearance is not impaired.

Although not shown in the above two tables, the transverse corrugated plates (1) of the same group, that is, the transverse corrugated plates (1) having the identification display (A) of the first group, or the second corrugated sheet of the same group.
Even if the side edges of the corrugated plates (1) with the group identification mark (B) are piled up and down, a difference in the average pitch of the chevron (P) within 0.3 mm will occur, but due to this difference. If so, the appearance of the roof after construction will not be impaired as described above.

However, as indicated by * in Table II, the average pitch (P)
Of the transverse corrugated sheet (1) with a small value of, the average pitch (P)
When the transverse corrugated sheet (1) having a large value of is arranged on the upper side and the difference between the peak pitches (P) of the both becomes 0.4 mm, the overlapping side edge portion is 6 mm, and the unfixed side edge portion is 60 mm. When blister deformation occurs and the difference in average pitch (P) becomes 0.5 mm, 10 mm on the overlapping side edge and 80 mm on the unfixed side edge.
Blistering deformation occurs in these cases, and in these cases, the roof after construction is swelled and distorted, and the appearance is significantly impaired.

In addition, in the said Example, although the case where the roof (3) of a greenhouse was wiped was demonstrated by the method of this invention using the corrugated board, this method of this invention WHEREIN: In addition, the corrugated board ( The same applies when attaching 1).

Further, the value of the average pitch (P) of the corrugated crests (2) of the transverse corrugated plate (1) varies depending on the type, size, etc. of the transverse corrugated plate (1). Therefore, the present invention is described in the above embodiment. Of course, it is not limited to the numerical values.

EFFECTS OF THE INVENTION The method of attaching and mounting a synthetic resin transverse corrugated plate according to the present invention
As described above, in the manufacturing stage of long corrugated sheet made of synthetic resin, the average pitch of each corrugated crest is measured for many transverse corrugated sheets which are repeatedly manufactured at intervals with a molding machine, and all corrugated sheets are measured. Is divided into a first group in which the value of the average pitch of the wave crests is smaller than a certain reference value within a range of the allowable error, and a second group in which the value is larger than the same reference value. At the step of giving identification (A) or (B) to which group it belongs, and at the stage of attaching the transverse corrugated sheet to the temperature roof, etc., the required number of transverse corrugated sheets obtained at random is identified (A) or ( According to B), divide into two groups, for temperature roof etc.,
First, after attaching all the transverse corrugated plates having the identification display (B) of the second group in which the value of the average pitch of the corrugated peaks is larger than a certain reference value in the horizontal direction so that their side edges partially overlap, Then, a step of horizontally attaching the transverse corrugated plates having the identification display (A) of the first group in which the value of the average pitch of the corrugated peaks is smaller than a certain reference value is provided so that their side edges partially overlap each other. Therefore, the transverse corrugated sheet is very easily and extremely workable on the roof or the side wall of the greenhouse, and there is no undulating deformation on the side edges, and all the transverse corrugated sheets are free from undulations and distortions. It is possible to install it very neatly on the roof, and it is possible to improve the finishing and efficiency of work such as roofing.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a state in which a transverse corrugated sheet is attached to a roof in the second step of the method of the present invention, FIG. 2 is an enlarged perspective view of a main part of the roof, and FIG. 3 is a line III-III in FIG. It is an expanded sectional view which follows. FIG. 4 is an enlarged perspective view of an essential part showing a state in which a transverse corrugated plate is attached to a roof by a conventional method. (1) ... transverse corrugated sheet, (1a) ... lower edge, (1b) ... upper edge, (2) ... corrugated peak, (3) ... roof, (5)
…… Positioning mark, (6) …… Fixing device, (A) ……
Identification display of the first group with a small average pitch in the mountain area,
(B) ... Identification display of the second group having a large mountain part average pitch, (P) ... average pitch.

Claims (1)

(57) [Claims] 1. An average of respective corrugated crests (2) of a large number of transverse corrugated sheets (1) repeatedly produced at intervals by a molding machine in the production stage of a long synthetic resin transverse corrugated sheet (1). Pitch (P) is measured and all transverse corrugated plates (1) are
Within the allowable error range, the average pitch (P) of the corrugated peaks (2) is divided into a first group that is smaller than a certain reference value and a second group that is larger than the same reference value. ) Is attached with an identification mark (A) or (B) indicating which of the first and second groups it belongs to, and at the stage of attaching the corrugated sheet (1) to the greenhouse roof (3), etc. The number of transverse corrugated sheets (1) is divided into two groups according to the above-mentioned identification display (A) or (B), and the value of the average pitch (P) of the corrugated mountain portion (2) is first set on the greenhouse roof (3) or the like. All transverse corrugated plates (1) having a second group of identifications (B) larger than a certain reference value are mounted horizontally so that their side edges partially overlap, and then the corrugated crests (2) are attached. The average pitch (P) of the first is smaller than a certain reference value Shear plate with identification of loop (A) (1) to their side edges become more and step of attaching to the horizontal direction as to overlap a part, mounting method of applying plastic shear plate.