JP2007082440A - Reinforcing material and greenhouse - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing material easily and effectively preventing deformation or slant of a column material caused by tensile action to pull the column material inward. <P>SOLUTION: The reinforcing material comprises a pressure stress generation part 10 disposed in almost parallel to a column material 30 arranged at the outer peripheral part of a greenhouse and crosspiece members 20 provided between the pressure stress generation part 10 and the column material 30, and is attached to the outside of the column material 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a reinforcing material for pillars disposed on the outer periphery of a greenhouse and a greenhouse provided with the same.

  2. Description of the Related Art Conventionally, an attracting apparatus that attracts a stem of a plant cultivated in a greenhouse in accordance with the growth of the plant is known (see, for example, JP 2000-209955 A and JP 2005-229933 A). The attracting device generally includes an attracting part and a support part. The attracting part is hung on the support part and attracts a plant stem. The support part is composed of a wire or the like. Both ends of the support part are supported by support members that are laid between the pillars disposed on the outer periphery of the greenhouse.

  By the way, the pillars of the greenhouse are not distinguished from those arranged in the outer periphery of the greenhouse and those arranged in the greenhouse, and those having the same thickness (the same cross-sectional area) are used. Yes. In addition, as a column material, a material that is as thin as possible (having a small cross-sectional area) is used in order to enhance daylighting. The thickness (cross-sectional area) of the column material is related to the size of the foundation (particularly the area of the plane) on which the column material is installed, and in order to increase the rigidity of the column material, The plane area increases. However, when the area of the base plane increases, the cultivation area decreases accordingly. Therefore, from the viewpoint of securing a larger cultivation area, it is desired to use a column material that is as thin as possible.

  However, when the above-described attracting device is installed in a greenhouse, the pillars disposed on the outer periphery of the greenhouse are pulled inward by the support portion constituting the attracting device, so that the thin cross-sectional area is small. With small column materials, deformation and inclination are likely to occur. In order to solve this problem, in a greenhouse in which an attracting device is planned from the beginning, it is possible to design a pillar material having a large thickness (large cross-sectional area). However, the use of thick pillars (having a large cross-sectional area) causes problems such as an increase in construction cost, a decrease in daylighting, and a decrease in cultivation area.

  On the other hand, there are many cases where the types of plants cultivated in the greenhouse are changed. In this case, when an attracting device is retrofitted to an existing greenhouse, the pillar material is thin and lacks rigidity, so that the pillar material is significantly deformed and inclined. However, in order to repair this, even if only the pillars arranged on the outer periphery of the greenhouse are replaced with thick ones (having a large cross-sectional area), a large-scale construction is required, and the work is generally not easy. .

JP 2000-209955 A JP 2005-229933 A

  The present invention has been made in view of the above circumstances, and includes a reinforcing material that can easily and effectively prevent deformation and inclination of a column material caused by a pulling action that pulls the column material inward. The challenge is to provide a greenhouse.

In order to solve the above problems, the present invention provides the following reinforcing material and greenhouse.
(1) comprising a compressive stress generating portion disposed substantially parallel to the pillar material disposed on the outer periphery of the greenhouse, and a crosspiece member provided between the compressive stress generating portion and the pillar material, A reinforcing material attached to the outside of the pillar material.
(2) The reinforcing member according to (1), wherein at least one of the crosspiece members supports a supporting member that supports a member that causes a pulling action on the column member.
(3) A greenhouse comprising the reinforcing material according to (1) or (2).

According to the present invention described in (1) above, the compressive stress generating portion disposed substantially parallel to the pillar material disposed on the outer peripheral portion of the greenhouse, the compressive stress generating portion and the pillar material Since it is provided with a crosspiece member provided between them and is attached to the outside of the column member, the tensile stress generated in the column member by the pulling action that pulls the column member inward can be weakened. Therefore, it is possible to effectively prevent the column material from being deformed or tilted by the pulling action that pulls the column material inward. In addition, because of its structure, it can be retrofitted to the column material, so that it is possible to easily prevent the column material from being deformed or inclined as compared with the case of replacing the column material.
According to the present invention described in (2) above, since at least one of the crosspiece members supports a support member that supports a member that induces a tensile action on the column member, the attachment of the support member Can be made easy.
According to the present invention described in (3) above, since the reinforcing material described in (1) or (2) is provided, it is generated by a pulling action that pulls inward the columnar material disposed in the outer periphery of the greenhouse. It is possible to easily and effectively prevent the pillar material from being deformed or inclined.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings.

  FIG. 1 is a view showing a state in which a reinforcing material according to an embodiment of the present invention is attached to a pillar material. As shown in this figure, the reinforcing material according to the present embodiment includes a compressive stress generating portion 10 and a crosspiece member 20.

  The compressive stress generating part 10 is a rod-shaped body made of a steel material, and has connecting parts 10a bent at a predetermined angle at both ends thereof. The compressive stress generator 10 is disposed substantially parallel to the pillar 30 by attaching the connecting part 10a to the pillar 30 disposed on the outer periphery of the greenhouse.

  One or two or more crosspiece members 20 are provided between the compressive stress generator 10 and the column member 30. The crosspiece member 20 is also a rod-like body made of a steel material, like the compressive stress generating portion 10. The crosspiece member 20 is disposed so as to be substantially orthogonal to the compressive stress generator 10.

  Even in the case where a plurality of crosspiece members 20 are provided as in the present embodiment, at least one of the crosspiece members 20 supports the support member 40 that supports a member that causes a pulling action on the column member 30. It is preferable. Since the crosspiece member 20 functions as a support for the support member 40, positioning when attaching the support member 40 becomes easy, and the support member 40 can be easily attached.

  Here, the “member that induces a pulling action on the pillar 30” means a member that causes a pulling action that pulls the pillar 30 inward with respect to the pillar 30 disposed on the outer periphery of the greenhouse. The members referred to here include all such members. For example, when the above-described attracting device is installed in a greenhouse, a support portion constituting the attracting device corresponds to such a member.

  The reinforcing material configured as described above is attached to the outside of the pillar material 30 disposed on the outer periphery of the greenhouse.

  For example, an attracting device is installed in a greenhouse, and as shown in FIG. 2, a tensile load (arrow A) is applied to the column member 30 in an inward direction by the pulling action of the support portion 50 constituting the attracting device. In this case, tensile stress (arrow B) is generated inside the column member 30. The stronger the tensile stress is, the greater the degree of deformation and inclination of the column member 30 is. However, when a reinforcing material is attached to the outside of the column member 30, a compressive stress (arrow C) is generated in the compressive stress generating part 10. Therefore, the tensile stress generated in the column member 30 is weakened. Therefore, even when a large tensile load is applied to the column member 30 in the inward direction, deformation and inclination of the column member 30 can be effectively prevented.

  According to the reinforcing material of the present embodiment, even when a thin columnar material 30 (small cross-sectional area) is used as the columnar material 30 disposed on the outer periphery of the greenhouse, the deformation and inclination of the columnar material 30 are effective as described above. Can be prevented. Further, the reinforcing member can be retrofitted to the column member 30 due to its structure. Accordingly, it is possible to easily prevent the column material 30 from being deformed or inclined as compared with the case of replacing the column material 30.

It is a figure which shows the state which attached the reinforcing material which concerns on one Example of this invention to the pillar material. It is a figure for demonstrating the effect | action of a reinforcing material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Compressive stress generation part 10a Connection part 20 Crosspiece member 30 Column material 40 Support member 50 Support part

Claims (3)

  A compressive stress generating portion disposed substantially parallel to a pillar material disposed in an outer peripheral portion of a greenhouse; and a crosspiece member provided between the compressive stress generating portion and the pillar material. Reinforcing material, characterized in that it is attached outside.   2. The reinforcing member according to claim 1, wherein at least one of the crosspiece members supports a supporting member that supports a member that causes a tensile action on the column member. A greenhouse comprising the reinforcing material according to claim 1.

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