JP3923061B2 - Roof structure in greenhouse - Google Patents

Description

  The present invention relates to a roof structure in a greenhouse, and more particularly, to an aggregate structure that constitutes the roof of the greenhouse, and a covering material application technique suitable for the aggregate structure.

Conventionally, as a roof structure in a greenhouse, as shown in FIG. 4, a palm material 100 that forms a roof in a mountain shape (a palm shape), a purlin 110 provided along a ridge that hits the top of the roof, and the purlin There is known one that includes a purlin member 120 that is fixed on the palm material 100 in parallel with 110 and a skylight 130 that opens and closes around the purlin 110 as a rotation center. A structure in which drooping wood is further provided on the purlin member 120 is also known.
Japanese Laid-Open Patent Publication No. 2002-291348 discloses a simple aggregate structure that can maintain the structural strength of a greenhouse.
By the way, a greenhouse installed outdoors is required to have a certain strength in the structure of the aggregate so as not to cause collapse or the like in consideration of various conditions such as strong wind, rainfall, snowfall, and earthquake. In this respect, in the conventional roof structure shown in FIG. 4, since only the purlin 110 is insufficient in strength with respect to the horizontal load in the ridge direction, a large number of purlin materials 120 are parallel to the purlin 110 on the palm material 100. Is provided.
However, in such a roof structure, although it is satisfactory in terms of strength, in addition to the joint material 100, the purlin 110 and the main building material 120, a skylight receiving frame 140 for receiving the skylight 130 may be disposed. Together, the types and quantities of aggregates that make up the roof are both large and the structure is complex. Therefore, there is a drawback that much labor and labor are required for the assembly work at the installation location, and there is a problem that the construction cost including the material cost is high due to such circumstances. In addition, these aggregates constituting the roof have a drawback in that they block sunlight and create a large number of shades in the greenhouse, resulting in poor daylighting.
On the other hand, in the above-mentioned Japanese Patent Application Laid-Open No. 2002-291348, as a roof structure of a greenhouse, an aggregate constituting the roof is composed of purlins and hanging timber, and a large number of the hanging timbers are spaced at intervals smaller than the interval between columns. Although it is described that it is provided, there is no description that specifically defines the diameter of the hanging lumber or the interval between the hanging lumbers. That is, if the interval between the hanging timbers is simply made smaller than the interval between the columns, the interval between the hanging timbers is too small, which may result in poor daylighting. In addition, when the strength of the hanging lumber itself is weak, for example, those made of resin pipes or metal pipes, but with a small diameter, satisfactory strength against horizontal load in the ridge direction, etc. Cannot be obtained. Furthermore, when a large-diameter wooden piece is used as the hanging wood, the distance between the hanging woods may be small, which may deteriorate the lighting performance.
The present invention has been made in view of the above circumstances, and provides a roof structure in a greenhouse capable of maintaining the same strength as the structure of a roof in a conventional greenhouse while having a simple configuration that improves daylighting. Is an issue.

In order to solve the above-mentioned problems, the present invention according to claim 1 is a roof structure in a greenhouse, and is made of a metal pipe having a circular cross section formed in an arch shape as hanging wood, the diameter of which is about A plurality of hanging timbers are arranged in the ridge direction using a thing within a range of 30 mm to about 50 mm, and a distance between the hanging timbers within a range of about 0.5 m to about 1.5 m. Provide roof structure.
The present invention according to claim 2 provides the structure of the roof according to claim 1, wherein the hanging wood has a diameter in the range of about 35 mm to about 40 mm.
According to a third aspect of the present invention, there is provided a roof structure according to the first or second aspect, wherein the interval between the hanging lumbers is about 1 m.
The present invention according to claim 4 is characterized in that the hanging timbers are connected only by a skylight receiving frame arranged continuously in the ridge direction. Providing a roof structure.
In the present invention according to claim 5, the skylight receiving frame is engaged with a part of the film fixture disposed on the hanging lumber at both end edges disposed substantially parallel to the ridge. And a holding portion that can hold the film fixing tool so as to be slidable, and the film fixing tool is fixed to the hanging timber at an arbitrary position within the slidable range. The roof structure according to claim 4, wherein a joint member is provided.
According to the first aspect of the present invention, the structure of the aggregate constituting the roof can be simplified while maintaining a predetermined strength. That is, for example, by simply connecting the hanging timbers with purlins, it is possible to obtain a strength that can sufficiently withstand a vertical load or a horizontal load applied to the roof. Moreover, since the structure of the aggregate which comprises a roof can be simplified, it can also improve lighting property. Furthermore, it is possible to reduce the labor and labor of the assembly work at the installation place, and it is possible to reduce the construction cost including the material cost.
According to the second or third aspect of the present invention, it is possible to further improve the daylighting performance while maintaining a predetermined intensity.
According to the fourth aspect of the present invention, in the structure of the roof provided with skylights, the structure of the aggregate constituting the roof can be simplified without the purlin and the purlin material, and the structure of the roof in the conventional greenhouse Equivalent strength can be maintained. In addition, it is possible to improve daylighting, and it is possible to reduce construction costs including material costs.
According to this invention of Claim 5, after fixing the plastic film which is a coating | covering material of a greenhouse to a film fixing tool, a film fixing tool is slid in the direction where a tension | tensile_strength is applied to a plastic film, and drooping wood with a joint member By adhering to the plastic film, the plastic film can be easily spread.

FIG. 1 is a perspective view showing a main part of a roof structure in a greenhouse according to an embodiment of the present invention.
FIG. 2 is a view showing the skylight and the skylight receiving frame adopted in the embodiment.
FIG. 3 is an enlarged perspective view of a portion A in FIG.
FIG. 4 is a diagram showing a roof structure in a conventional greenhouse.
In these figures, reference numeral 10 is a hanging wood, 20 is a skylight, 30 is a skylight receiving frame, 40 is a pillar, 50 is a trough, 60 is a film fixture, 70 is a joint member, and 80 is a plastic film.

Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings.
FIG. 1 is a perspective view showing a main part of a roof structure in a greenhouse according to an embodiment of the present invention. As shown in this figure, the roof according to the present embodiment is configured to have a hanging wood 10, a skylight 20, and a skylight receiving frame 30.
The hanging wood 10 is made of a metal pipe having a circular cross section formed in an arch shape. The hanging wood 10 is desirably one pipe material processed into an arch shape, but may be formed by connecting a plurality of pipe materials into an arch shape. By forming the hanging wood 10 in the arch shape in this way, there is an advantage that it is easy to apply tension to the plastic film stretched on the hanging wood 10. In addition, by configuring the hanging wood 10 from a metal pipe having a circular cross section, the strength of the hanging wood 10 itself can be increased as compared to a construction made of a resin pipe or the like.
Moreover, it is preferable to use the hanging wood 10 having a diameter in the range of about 30 mm to about 50 mm. If the diameter of the hanging lumber 10 is larger than the above range, the hanging lumber 10 itself blocks the sunlight more than necessary and creates shade in the greenhouse, thereby reducing the daylighting property. This is because the strength that can withstand the vertical load and horizontal load applied to the roof will be insufficient if it is smaller than the above range. From this point of view, it is more preferable to use the hanging wood 10 having a diameter in the range of about 35 mm to about 40 mm. By using the hanging wood 10 having a diameter within such a range, it is possible to further improve the daylighting property and to obtain a sufficient strength.
Both ends of the hanging wood 10 are fixed to the upper end portion of the column member 40 and are interposed between the trough 50 arranged along the ridge direction or between the trough 50 and the upper end portion of the column member 40. By being respectively connected to a girder (not shown), a plurality are arranged at a predetermined interval in the ridge direction. Here, the interval P between the hanging lumbers is preferably in the range of about 0.5 m to about 1.5 m. If the interval P between the suspended timbers 10 is larger than the above range, the strength that can withstand the vertical load and the horizontal load applied to the roof will be insufficient, and conversely, the interval P between the suspended timbers 10 is larger than the above range. If it is small, the hanging wood 10 itself blocks sunlight more than necessary to create a shade in the greenhouse, thereby reducing the lighting performance. From this point of view, it is more preferable that the interval P between the hanging woods 10 is about 1 m. Thereby, it is possible to further improve the daylighting property and to obtain a sufficient strength.
In the present embodiment, the above-described suspended wood 10 is adopted, and a plurality of the suspended woods 10 are arranged at the above intervals, so that the suspended wood 10 can be added to the roof only by connecting the suspended woods 10 only by purlins, for example. It is possible to obtain a strength that can sufficiently withstand a vertical load or a horizontal load. Therefore, in this case, it is possible to eliminate the purlin material. Moreover, in the roof provided with the skylight 20 as in the present embodiment, a predetermined strength is obtained by connecting the hanging timbers 10 only by the skylight receiving frame 30 continuously arranged in the ridge direction. Since it can be obtained, purlins and purlins can be dispensed with. Therefore, it is possible to reduce the labor and labor of the assembly work at the installation location by simplifying the structure of the aggregate constituting the roof, and to reduce the construction cost including the material cost.
Here, as shown in FIG. 2, the skylight 20 is provided so as to be able to open and close an opening formed so as to extend across the ridge and in a direction intersecting the ridge, It is preferable that the other end portion 20b is rotated in the vertical direction around one end portion 20a connected to the skylight receiving frame 30 provided at the center. According to the skylight 20, it is possible to expand the opening area of the opening portion as compared with a structure that opens and closes around the purlin as a rotation center while maintaining a certain strength without taking special reinforcing means. It is.
Moreover, as the skylight receiving frame 30, as shown in FIG.2 and FIG.3, the film fixing tool 60 arrange | positioned on the hanging lumber 10 is provided in the both-ends edge part each arrange | positioned substantially parallel with respect to a ridge. It is preferable to use one having a holding portion 30a that can engage with the portion 60a and hold the film fixture 60 so as to be slidable. Moreover, it is preferable that the hanging lumber 10 is provided with a joint member 70 that can fix the film fixing tool 60 to the hanging lumber 10 at an arbitrary position within the slide movable range.
With this configuration, the plastic film 80 that is a greenhouse covering material can be easily spread. That is, the plastic film 80 is tensioned as much as possible in order to prevent fluttering due to wind or the like. As an operation at this time, first, the film engagement formed on the inclined wall portion of the valley 50 is performed. The end of the bottom side of the plastic film 80 is engaged and fixed to the part, and the end of the plastic film 80 on the ceiling side is fixed to the film fixture 60 described above. Next, the plastic film 80 can be tensioned by sliding the film fixture 60 together with the joint member 70 in a direction approaching the ridge. After that, the film fixing tool 60 is fixed to the hanging wood 10 by the joint member 70, so that the plastic film 80 can be tensioned appropriately.

  As explained above, according to the roof structure in the greenhouse of the present invention, the structure of the aggregate constituting the roof can be simplified while maintaining a predetermined strength. Therefore, it is possible to improve the daylighting performance, reduce the labor and labor of the assembly work at the installation location, and reduce the construction cost including the material cost.

Claims (5)

A roof structure in a greenhouse, which is made of a metal pipe having a circular cross section formed in an arch shape, and a plurality of suspended timbers arranged in the ridge direction and continuously arranged in the ridge direction, And the skylight receiving frame engages with a part of the film fixture disposed on the hanging lumber at both end edges respectively disposed substantially parallel to the ridge. And a holding portion that can hold the film fixing tool so as to be slidable, and the film fixing tool is fixed to the hanging timber at an arbitrary position within the slidable range. A roof structure characterized in that a joint member is provided . The hanging lumber has a diameter in the range of about 30 mm to about 50 mm , and the interval between the hanging lumbers is in the range of about 0.5 m to about 1.5 m. The roof structure according to claim 1. The roof structure according to claim 2 , wherein the hanging lumber has a diameter in the range of about 35 mm to about 40 mm . The roof structure according to claim 2 , wherein an interval between the hanging timbers is about 1 m . The roof structure according to claim 1 , wherein the hanging timbers are connected only by the skylight receiving frame .

Images