JP5004671B2 - Greenhouse bracing structure - Google Patents

Description

  The present invention is a bracing structure appropriately arranged in an X shape on a rectangular frame formed on the end face or side surface of a green house whose frame is made of a metal pipe, and the length of the bracing It is an object of the present invention to provide a bracing structure for a green house that can be easily adjusted, and is inexpensive and easy to construct.

  In a green house whose framework is made of metal pipes, braces are arranged on the wife's face and side faces to prevent collapse due to strong winds or earthquakes. In order to arrange a brace made of a metal member on such a frame made of a metal pipe, the end portion of the metal member is often connected and processed. And the braces made of metal members are difficult to process on-site like wooden braces, especially when the ends are already machined, so it is difficult to rework and the length can be adjusted easily. In this case, a large number of metal members having different lengths must be prepared for the arrangement, which causes a problem that the efficiency is very low.

  For length adjustment problems, turnbuckles are often used as part of the brace. When using a turnbuckle, first, a right screw and a left screw are respectively screwed at the ends of the two metal members, and the screw portions are screwed into the turnbuckles. After rotating the turnbuckle while adjusting the length of the two metal members while holding the metal members so as not to rotate, the end portions of the metal members are adjusted to the corner portions of the frame body. It is fixed. However, the turnbuckle is expensive, and a right-hand screw and a left-hand screw must be screwed to the end of the metal member in order to connect the turnbuckle. There is a problem.

  In addition, as a brace that can be adjusted in length without using a turnbuckle, insert a small-diameter steel pipe into a large-diameter steel pipe, adjust the length, and fix the insertion part evenly with a dedicated compressor. There is bracing (see, for example, Patent Document 1). However, in the case of such braces, there is a problem that if the tightening is not sufficient, it is easily removed, and if sufficient tightening is performed on the contrary, it becomes difficult to remove and the position cannot be adjusted again. There is also the inconvenience that a dedicated tool is required only for this work at the construction site.

  In addition, as a brace that can be adjusted again using different diameter pipes, different diameter iron pipes with insertion holes provided at predetermined intervals in advance are used, and smaller diameter iron pipes are replaced with larger diameter iron pipes. There is a brace that is inserted into a pipe, a fixing bolt is inserted into the insertion hole, and the fixing bolt and the nut are fixed (for example, see Patent Document 2). However, in this bracing, it is necessary to align the position of the insertion hole of the small-diameter iron pipe and the insertion hole of the large-diameter iron pipe and insert and fix the fixing bolt, so it can be fixed at any position. In addition, since the heads and nuts of the fixing bolts are greatly protruded from the outer surface of the iron pipe that becomes the bracing, problems such as being caught by the outer synthetic resin film occur when used in a greenhouse. Furthermore, drilling a plurality of holes for a pair of bolts in a small-diameter pipe is nothing but making a defective part in the bracing and reducing the yield strength.

Registered Utility Model No. 3048693 JP-A-10-159178

  In view of the above problems, the present invention is a bracing structure appropriately arranged in an X shape on a rectangular frame formed on the end face or side surface of a greenhouse in which the framework is made of a metal pipe. It is an object of the present invention to provide a bracing structure for a greenhouse that can easily adjust the brace length, and is inexpensive and easy to construct.

  As a result of intensive studies to solve the above problems, the inventors of the present invention have a strut structure for a greenhouse in the vicinity of each corner of the frame of the upper and lower or left and right metal pipes constituting the rectangular frame, A gusset plate that is welded to the side surface of a single clamp or the outer surface of a metal pipe that is fitted and fixed to a metal pipe, and one end that is flattened by pressing and drilled with a bolt hole Are metal pipe members having different diameters fixed to the gusset plates opposed to each other on a substantially diagonal line of the frame by bolts and nuts, and metal pipe members having a large diameter at the other end of the metal pipe member having a small diameter. The metal pipe member having a large diameter is screwed into the metal pipe member having a small diameter from the outer surface of the metal pipe member having a large diameter while being inserted into the other end portion of the metal pipe member. If it is made up of a tapping screw for pipe connection having a length that does not reach the side surface, a metal pipe member with a different diameter is arranged on the diagonal line of the frame body, and the end portion of the metal pipe member with a small diameter is set to the diameter. The length can be easily adjusted by inserting it into the end of a large metal pipe member, and a tapping screw for pipe connection is screwed into the inserted portion from the outer surface of the metal pipe member having a large diameter. Both metal pipe members can be easily fixed just by inserting them, and the tapping screws are easy to screw in and out, so they can be easily repositioned and disassembled, and the tip of the tapping screws is a metal with a large diameter. The tip of the tapping screw that protrudes from the brace does not get caught on the synthetic resin film, etc. stretched in the green house, and will not be broken. To investigate the is of the present invention has been completed.

That is, the present invention is a bracing structure appropriately arranged in an X shape on a rectangular frame formed on the end face or side surface of a green house whose frame is made of a metal pipe,
In the vicinity of the corners of the upper and lower or left and right metal pipe frames constituting the rectangular frame body, welding is performed on the side surface of the single clamp or the outer surface of the metal pipe that is fixed by being fitted to the metal pipe. The gusset plate that has been pressed and flattened, and one end of which the bolt hole is drilled is fixed to the gusset plate facing the substantially diagonal line of the frame by bolts and nuts. A metal pipe member and a metal having a small diameter from the outer surface of the metal pipe member having a large diameter with the other end portion of the metal pipe member having a small diameter inserted into the other end portion of the metal pipe member having a large diameter A pipe connecting tapping screw having a length screwed into the pipe member and having a length that does not reach the outer surface on the opposite side of the metal pipe member having a large diameter. It is a bracing structure for a green house to be.

Then, if the longitudinal outer center line of one end of each metal pipe member is coincident with the longitudinal extension line of the outer surface of each metal pipe member, one end of the metal pipe member is its main body. One end of the metal pipe member constituting one bracing with respect to the plane including the center in the thickness direction of the two sets of gusset plates opposed substantially on the diagonal line of the frame body If one end of the metal pipe member constituting the gusset plate is fixed to the inside of the green house of the gusset plate and one end of the metal pipe member constituting the gusset plate is fixed to the outside of the green house of the gusset plate, the two braces do not easily interfere at the intersection. Can be preferable,
Also, one set of gusset plates facing each other on a substantially diagonal line of the frame is located on the surface of the frame located on the inside of the greenhouse, and the other set is located on the surface of the frame located on the outside of the greenhouse. When each single clamp is fixed to a metal pipe, each metal pipe member fixed to the gusset plate has its one end connected to each metal. A metal pipe member that is symmetrical with respect to a plane that includes a longitudinal extension of the center line of the pipe member, or the outer center line in the longitudinal direction of one end of each pipe member is outside the metal pipe member. In the case of a metal pipe member coinciding with the longitudinal extension line of the side surface, there is a large gap between one set of gusset plate sets facing each other on the substantially diagonal line of the frame body and the other set, so that 2 Book brace Preferably it can be easily be prevented from interfering with parts,
If the tapping screw for connecting the pipe is a tapping screw whose length is slightly shorter than the diameter of the metal pipe member having a large diameter, the diameter is not only on the side where the tapping screw is first screwed, but also on the opposite side. It has also been found that metal pipe members having different diameters can be connected, and metal pipe members having different diameters can be connected more reliably.

  The strut structure for a green house according to the present invention is a strut structure appropriately arranged in an X shape on a rectangular frame formed on the end face or side face of a green house whose framework is made of a metal pipe. In the vicinity of each corner of the upper and lower or left and right metal pipe frames constituting the rectangular frame body, the side surface of the single clamp or the outer surface of the metal pipe that is fitted and fixed to the metal pipe. The gusset plates that are welded to each other and the one end portions that are flattened by pressing and are drilled with bolt holes are fixed to the gusset plates that are opposed substantially on the diagonal of the frame by bolts and nuts, respectively. A metal pipe member with a different diameter and a metal pipe member with a small diameter are inserted into the other end of the metal pipe member with a large diameter. Since it is composed of a tapping screw for pipe connection having a length that is screwed into a metal pipe member having a small diameter from the surface and the tip does not reach the outer surface on the opposite side of the metal pipe member having a large diameter, In addition to using expensive turnbuckles, it is only necessary to use mounting brackets that are simply welded to gusset plates on general single clamps or metal pipe members that are press-processed at one end with a press. A green house can be constructed at a very low cost, and metal pipe members with different diameters are arranged on the diagonal of the frame, and the end of the metal pipe member with a small diameter is connected to a metal pipe member with a large diameter. The length can be easily adjusted by inserting it into the end of the pipe, and a tapping screw for pipe connection is screwed into the inserted part from the outer surface of the metal pipe member having a large diameter. Both metal pipe members can be easily fixed, and the tapping screw can be easily screwed in and removed, so that it is easy to adjust the position and disassemble again, and the tip of the tapping screw has a large diameter. Because the plastic resin film, etc. stretched in the green house does not get caught by the tip of the tapping screw protruding from the brace and is not torn, and the metal pipe member that is the brace is a bolt・ Because it is only fixed with nuts and tapping screws, it can be installed easily.

Further, when the longitudinal outer center line of one end portion of each metal pipe member coincides with the longitudinal extension line of the outer surface of each metal pipe member, the one end portion of the metal pipe member is Since it is formed to be biased toward the outer surface side of the main body, a metal pipe member that constitutes one bracing with respect to a plane including the center in the thickness direction of the two sets of gusset plates facing substantially diagonally of the frame If one end of the gusset plate is fixed to the inside of the green house and the other end of the metal pipe member constituting the brace is fixed to the outside of the green house of the gusset plate, the two braces can be easily crossed Can avoid interference,
Also, one set of gusset plates facing each other on a substantially diagonal line of the frame is located on the surface of the frame located on the inside of the greenhouse, and the other set is located on the surface of the frame located on the outside of the greenhouse. When each single clamp is fixed to a metal pipe, each metal pipe member fixed to the gusset plate has its one end connected to each metal. A metal pipe member that is symmetrical with respect to a plane that includes a longitudinal extension of the center line of the pipe member, or the outer center line in the longitudinal direction of one end of each pipe member is outside the metal pipe member. In the case of a metal pipe member that coincides with the longitudinal extension line of the side surface, there is a large gap between one set of the gusset plate and the other set facing each other on a substantially diagonal line of the frame. Two braces There can easily be prevented from interfering with intersections,
If the tapping screw for connecting the pipe is a tapping screw whose length is slightly shorter than the diameter of the metal pipe member having a large diameter, the diameter is not only on the side where the tapping screw is first screwed, but also on the opposite side. It is possible to connect metal pipe members having different diameters, and more reliably connect metal pipe members having different diameters.

Hereinafter, the bracing structure for a greenhouse according to the present invention will be described in detail with reference to the drawings.
1 is a front view showing an embodiment of a bracing structure for a greenhouse according to the present invention, FIG. 2 is an enlarged front view showing a state of the lower side of FIG. 1, and FIG. 3 is a sectional view taken along line AA in FIG. 4 is an enlarged front view showing a lower side state of another embodiment of the bracing structure for a green house according to the present invention, FIG. 5 is a sectional view taken along line BB of FIG. 4, and FIG. 6 is a green house according to the present invention. 7 is a perspective view showing one embodiment of a gusset plate and a single clamp in a bracing structure for a house, FIG. 7 is a front view showing one embodiment of a metal pipe member in a bracing structure for a greenhouse according to the present invention, and FIG. 9 is a left side view of another embodiment of the metal pipe member in the bracing structure for a greenhouse according to the present invention, and FIG. 10 is a brazing structure for a green house according to the present invention. Both metal pipe members are tapping FIG. 11 is a cross-sectional view showing another embodiment in which both metal pipe members are fixed with tapping screws in the bracing structure for a greenhouse according to the present invention. FIG. 12 is an enlarged front view showing a lower side state of still another embodiment of the bracing structure for a greenhouse according to the present invention that does not use a single clamp, and FIG. 13 is a sectional view taken along the line CC in FIG. FIG. 14 is an enlarged front view showing a lower side state of still another example of the bracing structure for a greenhouse according to the present invention which does not use a single clamp, and FIG. 15 is a sectional view taken along the line DD in FIG.

  In the drawings, 1 is in the vicinity of each corner of the upper and lower or left and right metal pipe frames constituting a rectangular frame formed on the end face or side surface of a green house whose frame is composed of metal pipes. This is a single clamp that is fitted and fixed to a metal pipe in order to deploy a gusset plate 2 to be described later. This single clamp 1 is not a clamp that is fixed by being externally fitted to two metal pipes, like an orthogonal clamp that is attached to a corner of a rectangular frame, but is only fitted to a single metal pipe. A clamp that is fixed in such a manner that is generally commercially available may be used. In addition, since the orthogonal clamp is arrange | positioned at each corner | angular part of a rectangular frame, this single clamp 1 is attached to the corner | angular vicinity. At that time, the single clamp 1 may be fixed to either the upper and lower metal pipes or the left and right metal pipes.

  2 is formed on the end face or side face of the green house so that one end portions 3a and 4a of the metal pipe members 3 and 4 constituting the bracing main body, which will be described later, are flattened and flattened by bolts and nuts. It is a gusset plate arranged near each corner of the rectangular frame. The gusset plate 2 is welded to the side surface of the single clamp 1 as shown in FIG. 5, is welded to the side of a metal pipe as shown in FIG. 13, and is made of metal as shown in FIG. It may be welded to the upper end part or lower end part of a pipe. Further, the gusset plate 2 is formed with bolt holes because end portions 3a, 4a of metal pipe members 3, 4 having different diameters, which will be described later, are attached by bolts and nuts.

  3 is a metal pipe member having a small diameter, and 4 is a metal pipe member having a large diameter, which constitutes a bracing main body in the bracing structure for a greenhouse according to the present invention, and each is press-worked. One end portions 3a and 4a, which are flattened and are provided with bolt holes 3aa and 4aa, are fixed to gusset plates 2 and 2 facing each other on a substantially diagonal line of the frame by bolts and nuts, respectively. Further, the other end portion 3b of the metal pipe member 3 having a small diameter is connected by a tapping screw 5 for connecting the pipe, which will be described later, while being inserted into the other end portion 4b of the metal pipe member 4 having a large diameter.

  As shown in FIG. 9, the one end portions 3a and 4a of the metal pipe members 3 and 4 are the longitudinal center lines of the end portions 3a and 4a of the metal pipe members 3 and 4, respectively. When it coincides with the longitudinal extension line of the outer surface of 3, 4, the one end portions 3 a, 4 a of the metal pipe members 3, 4 are formed so as to be biased toward the outer surface side of the main body portion, When fixing the one end portions 3a, 4a of the metal pipe members 3, 4 to the gusset plate 2, for example, as shown in FIG. 4 and FIG. If the main body of the other brace indicated by the alternate long and short dash line is positioned so as to be located in the frame body toward the outside of the greenhouse, the two are the main body. There is no interference in the center of 4 and 5, since there is no bracing on the outside of the green house (front side of the paper in FIG. 4), a synthetic resin film or the like stretched on the outer surface of the green house is in contact with the bracing. There is no tearing.

  Also, one set of gusset plates 2 and 2 facing each other on a substantially diagonal line of the frame body is positioned on the surface of the frame body located on the inside of the greenhouse, and the other set is positioned on the outside of the frame house. Each metal pipe member 3 fixed to the gusset plate 2 when the single clamp 1 is fixed to the metal pipe, or is welded to the metal pipe so as to be positioned on the surface. 4 is a metal pipe member 3, 4 whose one end 3a, 4a is symmetrical with respect to a plane including the longitudinal extension of the center line of each metal pipe member 3, 4. Even if the metal pipe members 3 and 4 have the longitudinal outer centerlines of the one end portions 3a and 4a coincide with the longitudinal extension lines of the outer surfaces of the metal pipe members 3 and 4, Of gusset plates 2 and 2 that face each other on an approximately diagonal line Since there is a large gap between the pair and the other pair, the two braces can be easily be made not to interfere in the center of the main body portion. As shown in FIG. 8, each metal pipe member 3, 4 fixed to the gusset plate 2 has one end 3 a, 4 a with respect to a plane including the longitudinal extension of the center line of each metal pipe member 3, 4. In the case of the metal pipe members 3 and 4 having a symmetrical shape, an eccentric load is not applied to each of the metal pipe members 3 and 4 when a large force is applied to the bracing, which is high. Can exhibit strength.

Reference numeral 5 denotes a diameter of the metal pipe member 3 having a small diameter from the outer surface of the metal pipe member 4 having a large diameter in a state where the other end 3b of the metal pipe member 3 having a small diameter is inserted into the other end 4b of the metal pipe member 4 having a large diameter. It is a tapping screw for pipe connection having a length that is screwed into a small metal pipe member 3 and whose tip does not reach the outer surface on the opposite side of the metal pipe member 4 having a large diameter.
As shown in FIGS. 10 and 11, the tapping screw 5 is screwed alternately into the opposed outer surfaces of the large-diameter metal pipe member 4 to thereby form the small-diameter metal pipe member 3 and the large-diameter metal pipe. The member 4 can be more reliably connected.
In addition, as shown in FIG. 11, when the tapping screw 5 for connecting the pipe is a tapping screw having a length slightly shorter than the diameter of the metal pipe member 4 having a large diameter, the tapping screw 5 is first screwed. It is possible to connect the metal pipe members 3 and 4 having different diameters not only on the side but also on the opposite side, and the metal pipe members 3 and 4 having different diameters can be connected more reliably.

In order to actually construct such a bracing structure for a green house according to the present invention, the following procedure is performed.
First, in the case of using the single clamp 1, the single clamp 1 in which the gusset plate 2 is welded to the side surface as shown in FIG. 6 is prepared. This single clamp 1 may be one obtained by welding a gusset plate 2 to a commercially available one.
Then, the single clamp 1 is fitted and fixed in the vicinity of each of the four corners in the rectangular frame. At that time, the fixing direction of the single clamp 1 is divided into the following two types depending on how the braces are arranged.

As a method of arranging the braces, first, as shown in FIG. 2, the gusset plate 2 is attached to the upper and lower or left and right metal pipes constituting the rectangular frame formed on the end face or side surface of the green house. The single clamp 1 is fixed so that it is located on the inner side (the back side of the paper), and one brace indicated by the solid line is fixed to the gusset plate 2 with bolts and nuts. The single clamp 1 is fixed so that the gusset plate 2 is positioned on the outer side (front side of the paper) of the green house on the upper and lower or left and right metal pipes constituting the rectangular frame formed on the side surface, The other brace indicated by the alternate long and short dash line is fixed to the gusset plate 2 with bolts and nuts, and as shown in the side view of FIG. 3, a sufficient interval is provided between the two braces to prevent interference at the intersection. There is a method to.
When the single clamp 1 is fixed so that the gusset plate 2 is positioned in different directions, the direction of the single clamp 1 is changed to the upper and lower or left and right metal pipes constituting the rectangular frame. Since it only needs to be fixed, it can be easily arranged by using four single clamps 1 having the same shape with gusset plates 2 welded to the same side surface, so that a green house can be constructed at low cost. .

As another arrangement method, as shown in FIG. 4, the single clamp 1 is fixed so that all the gusset plates 2 are located on the inner side (back side of the paper) of the greenhouse, and one solid line as shown in FIG. The bracing shown in is placed on the inside surface of the greenhouse and the bracing shown by the other alternate long and short dash line is located in the frame, and the thickness of the gusset plate 2 is slightly between the two bracings. There is a disposition method so as to prevent interference at the intersection by providing a simple gap.
In such a case, the gusset plates 2 and the braces are not located outside the green house, so that problems such as damage to the synthetic resin film or the like stretched on the outer surface of the green house are unlikely to occur. . Moreover, also when arrange | positioning in this way, since it can arrange | position easily by using four single clamps 1 of the same shape, a green house can be comprised at low cost.

  Further, in order to fix the metal pipe members 3 and 4 having actually different diameters to the single clamp 1 fixed in this way, the other end portion 3b of the metal pipe member 3 having a small diameter is made to have a large diameter. In a state of being inserted into the other end portion 4b of the metal pipe member 4, the bolt holes 3aa of the one end portions 3a and 4a of the metal pipe members 3 and 4 are formed on the gusset plates 2 and 2 facing substantially diagonally of the frame body. , Bolts inserted into 4aa should be fixed with nuts.

  In this state, the other end 3b of the metal pipe member 3 having a small diameter is inserted into the other end 4b of the metal pipe member 4 having a large diameter. If the pipe connection tapping screw 5 is screwed in from the side, the metal pipe members 3 and 4 having different diameters can be easily connected. At that time, as shown in FIGS. 10 and 11, the tapping screw 5 is screwed alternately into the opposed outer surfaces of the large-diameter metal pipe member 4, so that the metal pipe members 3, 3 having different diameters are more surely connected. 4 can be connected.

In this way, in the present invention, the other end 3b of the metal pipe member 3 having a small diameter must be inserted into the other end 4b of the metal pipe member 4 having a large diameter. The sum of the length of 3 and the length of the metal pipe member 4 having a large diameter needs to exceed the length of the diagonal line of each frame.
If the sum of the length of the metal pipe member 3 having a small diameter and the length of the metal pipe member 4 having a large diameter is sufficiently longer than the diagonal length of each frame, the metal pipe member 3 having a small diameter is used. When the other end portion 3b of the pipe member 3 is inserted into the other end portion 4b of the metal pipe member 4 having a large diameter, the overlapping portion becomes longer, so that it deviates from the central intersection portion of the bracing as shown in FIG. Since the tapping screw 5 can be screwed in at a certain position, it is easy to work. Also, when the position is adjusted again after the metal pipe members 3 and 4 having different diameters are connected, the overlapping portion is long, so a new tapping screw is provided. There is room for screwing in 5 and the work is easy.
Moreover, even when the sum of the lengths of the metal pipe members 3 and 4 having different diameters is not necessarily a length that sufficiently exceeds the length of the diagonal line of each frame, among the metal pipe members 3 and 4 having different diameters, If one side is long and the other is short, the overlapping portion of the two is shifted from the central intersection of the braces, and therefore, the operation of connecting with the tapping screw 5 is easy.

  Next, in the case where the gusset plate 2 is directly welded to the outer surface of the metal pipe without using the single clamp 1, the gusset plate 2 is welded in advance instead of welding the gusset plate 2 on site. A pipe made is prepared, a metal pipe to which the gusset plate 2 is welded in advance is arranged to assemble a green house, and thereafter, the metal pipe members 3 and 4 are fixed to the gusset plates 2 sequentially.

Further, in this embodiment, the gusset plate 2 may be welded to the side of the metal pipe as shown in FIG. 13, or may be welded to the upper end or lower end of the metal pipe as shown in FIG.
When the gusset plate 2 is welded to the side of the metal pipe, for example, as shown in FIGS. 12 and 13, the upper and lower sides constituting the rectangular frame formed on the end face or side surface of the greenhouse The left and right metal pipes are arranged so that the gusset plate 2 is located on the inside (inner side of the paper) side of the greenhouse, and one brace indicated by the solid line is fixed to the gusset plate 2 with bolts and nuts. In addition, the upper and lower or left and right metal pipes constituting the rectangular frame formed on the end face or side surface of the green house are arranged so that the gusset plate 2 is positioned on the outer side (front side) of the green house. The other brace indicated by the alternate long and short dash line is fixed to the gusset plate 2 with bolts and nuts, and as shown in the side view of FIG. 13, a sufficient interval is provided between the two braces. Interference may be arranged to prevent.

  As another arrangement method, although not shown, all the gusset plates 2 are arranged inside the green house with upper and lower or left and right metal pipes constituting a rectangular frame formed on the end face or side surface of the green house. The outer center lines in the longitudinal direction of the one end portions 3a and 4a are aligned with the longitudinal extension lines of the outer surfaces of the metal pipe members 3 and 4, respectively. Using the metal pipe members 3 and 4, one brace is positioned in the frame with the gusset plate 2 facing the inside of the greenhouse and the other bracing facing the outside of the greenhouse of the gusset plate 2. If it arrange | positions in this way, it can also arrange | position so that the slight clearance of the thickness of the gusset plate 2 may be provided between two braces, and the interference of an intersection part may be prevented.

  Further, when the gusset plate 2 is welded to the upper end portion or the lower end portion of the metal pipe as shown in FIG. 15, the gusset plates 2 are arranged in substantially the same plane when viewed from the side. Therefore, also in this embodiment, as shown in FIG. 15, the outer center lines in the longitudinal direction of the end portions 3 a, 4 a are made of the respective metal pipes that coincide with the longitudinal extension lines of the outer surfaces of the metal pipe members 3, 4. If the pipe members 3 and 4 are used, it is possible to provide a slight gap in the thickness of the gusset plate 2 as described above so as to prevent interference at the intersection.

It is a front view which shows one Example of the bracing structure for green houses which concerns on this invention. It is an enlarged front view which shows the state of the downward side of FIG. It is the sectional view on the AA line of FIG. It is an enlarged front view which shows the state of the downward side of the other Example of the bracing structure for green houses which concerns on this invention. It is the BB sectional view taken on the line of FIG. It is a perspective view which shows one Example of the gusset plate and single clamp in the bracing structure for greenhouses which concerns on this invention. It is a front view which shows one Example of the metal pipe member in the bracing structure for green houses which concerns on this invention. It is a side view which shows the one end part of the metal pipe member of FIG. It is a left view of the other Example of the metal pipe member in the bracing structure for green houses which concerns on this invention. It is a section explanatory view showing one example of the state where both metal pipe members in the bracing structure for greenhouses concerning the present invention were fixed with a tapping screw. It is a section explanatory view showing other examples in the state where both metal pipe members in the bracing structure for greenhouses concerning the present invention were fixed with a tapping screw. It is an enlarged front view which shows the state of the downward side of the further another Example of the bracing structure for greenhouses which concerns on this invention which does not use a single clamp. It is CC sectional view taken on the line of FIG. It is an enlarged front view which shows the state of the downward side of the further another Example of the bracing structure for greenhouses which concerns on this invention which does not use a single clamp. It is the DD sectional view taken on the line of FIG.

Explanation of symbols

1 Single clamp 2 Gusset plate 3 Small diameter metal pipe member
3a One end
3aa bolt hole
3b The other end 4 Large diameter metal pipe member
4a One end
4aa bolt hole
4b The other end 5 Tapping screw for pipe connection

Claims (5)

A strut structure that is appropriately arranged in an X shape on a rectangular frame formed on the end face or side surface of a green house whose framework is made of metal pipes,
The side surface of the single clamp (1) or the outer surface of the metal pipe that is fixed by being fitted to the metal pipe in the vicinity of each corner of the upper and lower or left and right metal pipe frames constituting the rectangular frame. The gusset plate (2) that is welded to each other, and one end (3a, 4a) that has been flattened by pressing and is drilled with bolt holes (3aa, 4aa) are opposed to each other on a substantially diagonal line of the frame The metal pipe members (3, 4) having different diameters fixed to the gusset plates (2, 2) by bolts and nuts, and the other end (3b) of the metal pipe member (3) having a small diameter are provided. The metal pipe member (4) with a large diameter is inserted into the other end (4b) of the metal pipe member (4) with a large diameter, and is screwed into the metal pipe member (3) with a small diameter from the outer surface of the metal pipe member (4) with a large diameter. It has a length so that its tip does not reach the outer surface on the opposite side of the large-diameter metal pipe member (4) A bracing structure for a greenhouse, characterized by comprising a tapping screw (5) for connecting a pipe.   The longitudinal center line in the longitudinal direction of one end (3a, 4a) of each metal pipe member (3,4) coincides with the longitudinal extension line of the outer surface of each metal pipe member (3,4). The bracing structure for a green house according to claim 1.   One set of gusset plates (2, 2) facing each other on a substantially diagonal line of the frame is on the surface located inside the greenhouse of the frame, and the other set is located outside the greenhouse of the frame. Each metal is fixed to the gusset plate (2) when it is welded to each metal pipe so as to be positioned on the surface, or when each single clamp (1) is fixed to the metal pipe. The pipe member (3, 4) is made of a metal whose one end (3a, 4a) is symmetrical with respect to a plane including the longitudinal extension of the center line of each metal pipe member (3, 4). The bracing structure for a greenhouse according to claim 1, which is a pipe member (3, 4).   One set of gusset plates (2, 2) facing each other on a substantially diagonal line of the frame is on the surface located inside the greenhouse of the frame, and the other set is located outside the greenhouse of the frame. Each metal is fixed to the gusset plate (2) when it is welded to each metal pipe so as to be positioned on the surface, or when each single clamp (1) is fixed to the metal pipe. The pipe member (3, 4) is made of a metal whose one end (3a, 4a) has a longitudinal outer center line that coincides with a longitudinal extension of the outer surface of each metal pipe member (3,4). The bracing structure for a greenhouse according to claim 1, which is a pipe member (3, 4).   The bracing for a greenhouse according to any one of claims 1 to 4, wherein the tapping screw (5) for connecting the pipe is a tapping screw having a length slightly shorter than the diameter of the metal pipe member (4) having a large diameter. Construction.

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