JP2010022220A - Torsion-preventing structure for arch member in hothouse structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a torsion-preventing structure for arch members in a hothouse structure enabling firm fixation of arch pipes in a hothouse structure even when power is applied to the arch pipe in a direction corresponding to a torsional position. <P>SOLUTION: The torsion-preventing structure for arch members in a hothouse structure is as follows: two arch pipes 4, 5 different in a curvature from each other are connected with a transverse pipe 2 set up in a ridge direction; a chin-propped member C almost in an isosceles triangular shape in a plan view is set up between the larger arch pipe 4 and the transverse pipe 2 while the smaller arch pipe 5 of the two arch pipes and the transverse pipe 2 are connected in an intersecting condition; the chin-propped member C includes a holding-over part 50 having an almost U-shape in plan view which holds over the larger arch pipe 4, and an arm part 51 which extends to the holding-over part 50 as an ending point; and the arm part 51 is set up to the member C so as to stride over the fixation part where the smaller arch pipe 4 and the transverse pipe 2 are connected. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a structure for preventing twisting of an arch member in a greenhouse structure.

  Conventionally, a greenhouse structure represented by an agricultural vinyl house is constructed by assembling pipe materials made of aluminum or steel, and stretching a sheet material made of a synthetic resin film along the pipe materials.

  As an example of a specific greenhouse structure, a large number of approximately the same shape and size arch pipes arranged side by side in the ridge direction, and horizontal pipes arranged in the ridge direction along the arch pipe There is known one assembled and arranged.

  By the way, in recent years, as a synthetic resin film constituting the above-mentioned sheet material, a PO-based film having a higher weather resistance than a vinyl-based film tends to be used more often.

  Since this PO film has low elasticity and high strength, even when the number of arch pipes is reduced, the sheet material is not easily damaged, and the shadow in the greenhouse can be reduced by the amount of the reduced arch pipes. It has the advantages of

  However, if the number of arch pipes is reduced, there is a problem that the greenhouse structure is weakened.

  Therefore, a pipe house reinforcement method has been proposed in which two arch pipes having different curvatures are connected with a predetermined gap in the radius direction of curvature to form an arch member, and a greenhouse structure is constructed using the arch member. (For example, refer to Patent Document 1).

According to the greenhouse structure using this arch member, the strength of the greenhouse structure can be increased.
JP 2007-300826 A

  However, the conventional arch member has a problem that it is structurally weak when it receives a force that causes each arch pipe to be twisted.

  In addition, when the cross-sections of the arch pipes are circular, the arch pipes easily move in the direction of the twisted position, and further improvement has been demanded from the viewpoint of strength.

  The present invention has been made in view of such circumstances, and can generate sufficient strength even when a force is applied to the arch pipe in the direction of twisting, and the arch pipe has a cross section. The present invention provides an anti-twisting structure for an arch member in a greenhouse structure that can be firmly fixed even if it is circular.

  In order to solve the above-described conventional problems, in the present invention described in claim 1, two arch pipes having different curvatures are connected with a predetermined gap in the radius direction of curvature to form an arch member. In a greenhouse structure in which a plurality of members are juxtaposed at intervals in the ridge direction, and the plurality of arch members and a horizontal pipe arranged in the ridge direction are connected, the first arch pipe of the two arch pipes and the While connecting the horizontal pipe in an intersecting state, a cheek cane member having a substantially isosceles triangle shape in plan view is interposed between the second arch pipe and the lateral pipe, and the cheek cane member is connected to the second arch pipe. A substantially U-shaped holding portion for holding the holding portion and an arm portion extending from the holding portion as a vertex, wherein the arm portion is connected to the first arch pipe and the lateral pipe. It is arranged so as to straddle the fixed part. It was anti-twist structure of the arch member in a greenhouse structures characterized by.

The present invention is also characterized by the following points.
(1) The arm portion is provided with a plurality of ribs in the extending direction.
(2) The fixing portion locks the horizontal pipe, a pair of U-shaped holding members that hold the first arch pipe, a hole portion through which the opening-side end portion of the U-shaped holding member is inserted. A plate-like member having a concave locking portion formed thereon, and a male screw threaded into the opening side end portion is screwed into a female screw member while being inserted into the hole portion, and the first The arch pipe and the horizontal pipe are connected and fixed in an intersecting state.

  In the structure for preventing twisting of the arch member in the greenhouse structure according to claim 1, two arch pipes having different curvatures are connected with a predetermined gap in the radius direction of curvature to form an arch member, and the arch member is In the greenhouse structure in which a plurality of arch members are juxtaposed at intervals in the direction and the plurality of arch members and a horizontal pipe arranged in the ridge direction are connected, the first arch pipe of the two arch pipes and the horizontal pipe Are connected in a crossed state, and a cheek cane member having a substantially isosceles triangle shape in plan view is interposed between the second arch pipe and the lateral pipe, and the cheek cane member holds the second arch pipe. A substantially U-shaped holding portion in plan view and an arm portion extending from the holding portion as a vertex, and the arm portion includes a fixing portion to which the first arch pipe and the horizontal pipe are connected. It is arranged to straddle Therefore, even when a force is applied to the arch pipe in the direction of twisting, sufficient strength can be generated, and even if the arch pipe has a circular cross section, it can be firmly fixed. it can.

  Further, in the structure for preventing twisting of the arch member in the greenhouse structure according to claim 2, since the arm portion is provided with a plurality of ribs in the extending direction, the strength of the arm portion is improved. Further, twisting of the arch member can be further prevented.

  Moreover, in the twist prevention structure of the arch member in the greenhouse structure according to claim 3, the fixing portion includes a pair of U-shaped holding members that enclose the first arch pipe, and an opening of the U-shaped holding member. A plate-like member formed with a hole portion through which the side end portion is inserted and a concave locking portion for locking the lateral pipe, and a male screw threaded into the opening side end portion is provided in the hole portion. Since the first arch pipe and the horizontal pipe are connected and fixed in an intersecting state by screwing with a female screw member in the inserted state, pipes of relatively various diameters are held in an intersecting state with a simple configuration. In addition, the strength calculation of the assembled greenhouse structure can be facilitated, and even if the cross section of the arch pipe is circular, it can be more firmly fixed.

  In the present invention, two arch pipes having different curvatures are connected with a predetermined gap in the curvature radius direction to form an arch member, and a plurality of the arch members are juxtaposed at intervals in the ridge direction. In the greenhouse structure in which the arch member and the horizontal pipe arranged in the ridge direction are connected, the first arch pipe of the two arch pipes and the horizontal pipe are connected in an intersecting state, while the second arch pipe A cheek cane member having a substantially isosceles triangular shape in plan view, and a cheek cane member having a generally U-shaped holding part for holding the second arch pipe; An arm portion extending from the holding portion as a vertex, and the arm portion is disposed so as to straddle a fixed portion where the first arch pipe and the lateral pipe are connected. Anti-twisting of arch members in greenhouse structures It is intended to provide a structure.

  The greenhouse structure described above has, for example, a large number of arch members having the same shape and the same size arranged side by side in the ridge direction, such as a vinyl house, and a horizontal arch member arranged in the ridge direction along the arch member. It can be understood that the pipe is arranged and assembled.

  And this invention plays the role which improves the intensity | strength to the twist direction of this arch member.

  Here, the shape of the arch member and each arch pipe constituting the arch member is not particularly limited, and may be a shape used for a general greenhouse structure such as a semicircular arc shape, a gable shape, and a gate shape. .

  The arch pipe constituting the arch member may be formed by bending a single pipe, or may be formed by connecting a plurality of pipes.

  In addition, the two arch pipes having different curvatures may be such that the pipe having a large curvature is the first arch pipe and the pipe having a small curvature is the second arch pipe, and the pipe having a small curvature is the first arch pipe. The pipe having a large curvature may be the second arch pipe. That is, either may be the first arch pipe or the second arch pipe.

  Moreover, it is preferable to provide a plurality of ribs in the distraction direction on the arm portion of the cheek cane member interposed between the second arch pipe and the horizontal pipe. The arm portion functions as a member that supports the force in the twisting direction of the arch pipe. By providing a rib on this arm portion, the strength of the arm portion can be improved, and the arch pipe twisting direction can be improved. Deformation can be further prevented.

  Further, the fixing portion locks the horizontal pipe, a pair of U-shaped holding members that hold the first arch pipe, a hole portion through which an opening-side end portion of the U-shaped holding member is inserted. A plate-like member formed with a concave locking portion, and a male screw threaded into the opening side end portion is screwed with a female screw member in a state of being inserted into the hole portion, thereby The arch pipe and the horizontal pipe are preferably connected and fixed in an intersecting state.

  With such a configuration, the horizontal pipe can be firmly fixed to the first arch pipe, and the second arch pipe can be effectively prevented from being deformed in the twisting direction.

  Moreover, even if the cross section of a 1st arch pipe or a horizontal pipe is circular shape, both pipes can be firmly fixed in an intersection state.

  Hereinafter, the twist prevention structure of the arch member in the greenhouse structure according to the present embodiment will be described with reference to the drawings. FIG. 1 is a perspective explanatory view showing a greenhouse A provided with a twist preventing structure for an arch member according to the present embodiment.

  As shown in FIG. 1, the greenhouse A is assembled in a front-view shape by a predetermined frame material, and a sheet material (not shown) made of a synthetic resin film is stretched along the frame material. Is building.

  That is, the greenhouse A stands up with a plurality of arch members 1 forming a roof at appropriate intervals in the longitudinal direction of the greenhouse A to be constructed, and a plurality of longitudinal horizontal pipes 2 between the arch members 1. Are connected and fixed.

  Moreover, the greenhouse cultivation device 6 is disposed inside the greenhouse A, and the cultivation device 9 can be moved along the beam 7 in the front direction of the greenhouse A by operating the moving device 8. is doing.

  The arch member 1 includes two arch pipes having different curvatures, a large arch pipe 4 having a small curvature and a small arch pipe 5 having a large curvature, and the large and small arch pipes 4 and 5 are provided with a predetermined gap in the radius direction of curvature. And are connected by a connecting member 3.

  Further, the above-described horizontal pipe 2 is fixed so as to extend in the ridge direction by inserting a gap between the arch members 1.

  Further, at the intersection P, intersection Q, and intersection R between each arch member 1 and the horizontal pipe 2, an arch member twist prevention structure that is characteristic of the present embodiment is provided. For convenience of explanation, first, the configuration of the arch member twist prevention structure at the intersection P will be described, and then the configuration of the arch member twist prevention structure at the intersection Q and the intersection R will be described.

  As shown in FIGS. 2 and 3, the twist prevention structure of the arch member at the intersection P is such that the three pipes of the horizontal pipe 2 and the large and small arch pipes 4 and 5, and the horizontal pipe 2 and the small arch pipe 5 are crossed. The connecting bracket B to be connected and fixed and the cheek cane member C for restricting the large arch pipe 4 from moving in the direction of the twisted position with respect to the small arch pipe 5 are configured. 2A is a plan view of the intersection point P, FIG. 2B is a perspective view of the intersection point P, and FIG. 3 is an exploded perspective view of the intersection point P.

  The horizontal pipe 2 and the small arch pipe 5 are crossed by a connecting metal fitting B formed by a pair (two) of U-shaped holding members 40 and a plate-like member 20 that passes through the U-shaped holding members 40. Connected and fixed.

  The U-shaped holding member 40 has a shape in which two leg portions 41 are connected by a semi-arc-shaped curved flat body 46 having a predetermined curvature, and the curved flat body 46 is a U-shaped holding member. Forty block side ends 42 are formed.

  Further, the curved flat body 46 is formed in a substantially flat shape in a sectional view including an inner curved flat surface portion that forms a semicircular arc inner side and an outer curved flat surface portion that forms the outer side. Compared to the case where is formed in a substantially circular shape in cross section, the contact area with the first arch pipe (small arch pipe 5 in this embodiment) held by the inner curved flat surface portion is increased, and a nut described later The pressure applied to the first arch pipe when 45 is tightened is dispersed as much as possible.

  Further, compared to the case where the curved flat body 46 is formed in a substantially circular shape in cross section, it is possible to prevent excessive friction and tension from being applied to the sheet material contacting the outer curved flat surface portion of the curved flat body 46. ing. This is an advantageous configuration when a PO film having excellent weather resistance but weak against friction or the like is used as a sheet material, and can effectively prevent the sheet material from being damaged.

  In the leg portions 41 and 41 of the U-shaped holding member 40, a screw groove is screwed from the midway portion to the opening side end portion 43 to form a male screw 44. A nut 45 that functions as a female screw member can be screwed to the male screw 44. After inserting the plate-like member 20 described later into the leg portions 41 and 41, the nut 45 is tightened tightly. The small arch pipe 5 and the horizontal pipe 2 as one arch pipe can be held in an intersecting state.

  The plate-like member 20 is a plate-like member having wall portions 22 erected on both the left and right sides, and the plate-like member 20 is partially bent in a substantially central portion so that the small arch pipe 5 and A protruding portion 26 extending in the same direction (a direction perpendicular to the horizontal pipe 2) is formed.

  When the small arch pipe 5 and the horizontal pipe 2 are connected and fixed, the ridge 26 is formed in a plate shape by forming a groove in the extending direction of the horizontal pipe 2 due to the stress exerted on the plate-shaped member 20 by the horizontal pipe 2. The member 20 has a role of preventing the member 20 from being bent.

  Further, the wall portion 22 of the plate-like member 20 is provided with a concave locking portion 21 formed by cutting out a part of the substantially central portion of the upper side portion. The concave locking portion 21 is for facilitating the positioning of the horizontal pipe 2.

  Further, the concave locking portion 21 is formed by cutting out into a trapezoidal shape that gradually expands in the direction of the horizontal pipe 2. This is formed so as to be compatible with the horizontal pipes 2 of various thicknesses. For example, when the horizontal pipe 2 to be used has a comparatively small diameter, It is locked at one point on the bottom 25.

  Further, when the horizontal pipe 2 has a medium diameter, the horizontal pipe 2 is locked at three points, that is, the bottom 25 and the left and right sides 24, 24. When used, it is locked at the two points of the left and right side portions 24, 24.

  That is, the concave locking portion 21 is formed by cutting out into a trapezoidal shape that gradually expands in the direction of the horizontal pipe 2, so that the horizontal pipe 2 having a relatively small diameter is changed to a horizontal pipe 2 having a relatively large diameter. Until now, the framework material can be held and fixed in a crossed state over a wide range.

  Further, a hole 23 for inserting the leg portion 41 of the U-shaped holding member 40 is formed between the wall portion 22 of the plate-like member 20 and the ridge portion 26.

  The shape of the hole 23 is a long hole having a long diameter in a direction orthogonal to the extending direction of the small arch pipe 5 as the first arch pipe, and the nut 45 is screwed into the male screw 44. The size is not inserted.

  By making this hole portion 23 the above-described long hole, the distance between the leg portions 41 and 41 can be increased according to the size of the diameter of the first arch pipe (small arch pipe 5) held by the U-shaped holding member 40. Even when the distance is changed, the leg portions 41 and 41 can be inserted into the holes 23 and 23.

  Further, even when the leg portions 41, 41 of the U-shaped holding member 40 are slightly expanded so as to gradually expand toward the opening side, the leg portions 41, 41 can be inserted into the holes 23, 23. I am doing so.

  The connection fitting according to the present embodiment has the above-described configuration, and when the first arch pipe (small arch pipe 5) and the horizontal pipe 2 are actually fixed in an intersecting state, a pair of U-shapes is used. In the state where the holding member 40, 40 holds the small arch pipe 5 and the horizontal pipe 2 is disposed between the U-shaped holding members 40, 40, the respective leg portions 41, 41, 41, 41 are plate-like members. The 20 holes 23, 23, 23, 23 are inserted.

  At this time, the plate-like member 20 is mounted such that the concave locking portion 21 is in contact with the horizontal pipe 2 and the protruding portion 26 is in the same direction as the extending direction of the small arch pipe 5. Further, the respective leg portions 41, 41, 41, 41 are inserted through the holes 23, 23, 23, 23 in a slightly oblique direction.

  In such a state, nuts 45 are screwed into the respective male screws 44 and each nut 45 is tightened to hold and fix the small arch pipe 5 and the horizontal pipe 2 in an intersecting state. That is, the fixed part at the intersection P is configured as described above.

  In particular, in the present embodiment, the nut 45 is held and fixed by tightening the nut 45 on the male screw 44. Therefore, by fixing the tightening torque, the strength at the intersection using the connection fitting B according to the present embodiment is clarified. The strength of the assembled greenhouse structure can be easily calculated.

  In order to make the tightening torque constant, for example, an impact wrench or a torque wrench with a torque adjustment function can be used.

  Next, the cheek cane member C interposed between the large arch pipe 4 as the second arch pipe and the horizontal pipe 2 will be described.

  The cheek cane member C includes a holding part 50 having a substantially U shape in plan view for holding the large arch pipe 4 and arm parts 51 and 51 extending from the holding part 50 as apexes. Is a member that forms a substantially isosceles triangular structure in plan view with the horizontal pipe 2 as the bottom.

  The holding part 50 is a part for connecting and fixing the cheek cane member C itself to the large arch pipe 4 in a state where the large arch pipe 4 is held, and bolts are inserted into the pair of bolt insertion holes 52, 52 provided on the side surfaces thereof. It is fixed by inserting 53 and tightening the nut 54.

  The arm portions 51 and 51 are plate-like members that extend in the direction of expansion with the opening portion left and right end portions of the holding portion 50 as the base ends and the holding portion 50 as the apex, and are connected to the tip portions thereof. Bending connection portions 55, 55 formed by bending so as to be substantially parallel to the extending direction of the horizontal pipe 2 are provided.

  In the bent connecting portions 55 and 55, two bolt insertion holes 58 and 58 are formed in a straight line perpendicular to the horizontal pipe 2 with a width equal to or larger than the diameter of the horizontal pipe 2, and this bolt insertion The U-shaped bolt 56 is inserted into the holes 58 and 58 while the horizontal pipe 2 is held, and the cheek cane member C is fixed to the horizontal pipe 2 by tightening the nuts 57 and 57.

  Further, characteristically in the present embodiment, when the large arch pipe 4 is held by the cheek cane member C, the bent connecting portions 55 and 55 attached to the horizontal pipe 2 are the small arch pipe 5 and the horizontal pipe 2. Are located on both the left and right sides of the portion where the connection fitting B is attached.

  In other words, the arm portions 51 and 51 of the cheek cane member C have the left and right end portions on the opening side of the holding portion 50 as the base ends, and the bent connection portions 55 and 55 formed at the distal end portions thereof are connected to the connecting bracket B. Centering on the intersection of the small arch pipe 5 and the horizontal pipe 2 to which the pipe is attached is connected to the left and right sides of the horizontal pipe 2 one by one, so that the holding pipe 50 is the top and the horizontal pipe 2 is the bottom. The torsion prevention structure having a substantially isosceles triangle shape is formed.

  Here, the number of the arm portions 51 extending from the holding portion 50 is two. However, the number of the arm portions 51 is not necessarily limited to this. You may increase the number.

  By adopting such a structure, even when a force is applied to the arch member 1 from either the left or right direction, the arch member 1 can be effectively prevented from being twisted.

  In this manner, the cheek cane member C is interposed between the large arch pipe 4 as the second arch pipe 4 and the horizontal pipe 2 so as to form a substantially isosceles triangular structure in plan view.

  Note that the angle T formed by the arms 51 and 51 shown in FIG. 2A is in the range of 70 to 120 degrees, preferably 80 to 100 degrees.

  If the angle is less than 70 degrees, the strength decreases with respect to the twist in the left-right direction, and it is not preferable. It is not preferable.

  By making the angle of the angle T as close as possible to 80 to 100 degrees, that is, 90 degrees, it is possible to effectively prevent twisting in the left-right direction and to make the cheek cane member C itself compact. can do.

  Next, an intersection point Q in FIG. 1 will be described as another embodiment of the structure for preventing twisting of the arch member in the greenhouse structure.

  At this intersection point Q, the basic configuration is the same as that of the aforementioned intersection point P, but the small arch pipe 5 as the first arch pipe and the large arch pipe 4 as the second arch pipe are in an arc shape. The structure is different in that it is curved.

  However, even in such a part, twisting of the arch member 1 can be effectively prevented by forming a structure similar to that described above.

  Moreover, the intersection R of FIG. 1 is demonstrated as further another embodiment of the twist prevention structure of the arch member in a greenhouse structure.

  The intersection point R has the same basic configuration as the intersection point Q described above, but the cheek cane member C is disposed with the first arch pipe as the large arch pipe 4 and the second arch pipe as the small arch pipe 5. The structure is different.

  However, even in such a part, twisting of the arch member 1 can be effectively prevented by forming a structure similar to that described above.

  Next, another embodiment of the cheek cane member will be described with reference to FIG. FIG. 4 shows a structure substantially similar to the exploded perspective view of FIG. 3, but the structure is different in that ribs 60 are formed on the arm portions 51, 51 of the cheek cane member D. In FIG. 4, the members described above are denoted by the same reference numerals and description thereof is omitted.

  When attention is paid to the cheek cane member D shown in FIG. 4, a groove-shaped rib is formed along the extending direction of the arm portions 51, 51 from the middle portion of the holding portion 50 through the base portion of the arm portions 51, 51 to the end portion. Two 60 are formed on the upper and lower sides.

  The rib 60 has a role of preventing the arms 51, 51 from being bent by forming grooves in the plate-like arms 51, 51 in the vertical direction (the extending direction of the large arch pipe 4).

  That is, by providing the rib 60 on the arm portions 51 and 51, the strength of the arm portions 51 and 51 can be improved, and the twist of the arch member 1 can be further prevented.

  Further, between the bolt insertion holes 58 and 58 of the bent connecting portion 55, a concave concave contact 61 for contacting the horizontal pipe 2 is formed.

  The contact recesses 61 and 61 formed in the bent connecting portions 55 and 55 serve to facilitate positioning when the bent connecting portions 55 and 55 and the horizontal pipe 2 are connected and fixed. After fixing, the large arch pipe 4 also plays a role of making it difficult for the horizontal pipe 2 to move in the vertical direction.

  With this configuration, the cheek cane member D can be firmly fixed to the horizontal pipe 2 to effectively prevent the arch member 1 from being twisted, and the arch member 1 can be prevented from being displaced in the vertical direction. can do.

  As described above, the structure for preventing twisting of the arch member in the greenhouse structure according to the present invention includes two arch pipes having different curvatures (for example, large and small arch pipes 4 and 5), with a predetermined gap in the radius direction of curvature. An arch member (for example, the arch member 1) is connected to form a plurality of the arch members side by side in the ridge direction, and a horizontal pipe (for example, a horizontal pipe) disposed in the ridge direction with the plurality of arch members. 2) in a greenhouse structure (for example, greenhouse A), the first arch pipe (for example, the large arch pipe 4 or the small arch pipe 5) of the two arch pipes and the horizontal pipe are crossed. On the other hand, between the second arch pipe (for example, the small arch pipe 5 or the large arch pipe 4) and the horizontal pipe, a cheek cane member having a substantially isosceles triangle shape in plan view (for example, A cheek cane member C, D) is interposed, and the cheek cane member has a substantially U-shaped holding part (for example, the holding part 50) in plan view for holding the second arch pipe, and the holding part. Arm portions (for example, arm portions 51 and 51) extending at the top, and the arm portions are disposed so as to straddle the fixed portion where the first arch pipe and the horizontal pipe are connected. Therefore, even when a force is applied to the arch member 1 so that the arch pipes 4 and 5 are twisted, the arch members 4 and 5 are prevented from being twisted. It is possible to generate a sufficient strength for 1 and to fix firmly even if the cross section of the arch pipe is circular.

  Further, since the arm portion is provided with a plurality of ribs (for example, ribs 60) in the extending direction, the strength of the arm portions 51 and 51 is improved, and the arch member 1 is further prevented from being twisted. Can do.

  Further, the fixing portion is inserted through a pair of U-shaped holding members (for example, U-shaped holding members 40 and 40) for holding the first arch pipe and an opening side end portion of the U-shaped holding member. Plate-like member (for example, plate-like member 20) formed with a hole portion (for example, hole portions 23, 23) to be formed and a concave-shaped latching portion (eg, concave-shaped latching portion 21) for latching the horizontal pipe A male screw (for example, a male screw 44) threaded into the opening side end portion is screwed with a female screw member (for example, a nut 45) in a state of being inserted into the hole portion, and the first Since the arch pipe and the horizontal pipe are connected and fixed in an intersecting state, pipes of relatively various diameters can be held in an intersecting state with a simple configuration, and the strength calculation of the assembled greenhouse structure is facilitated. Even if the cross section of the arch pipe is circular It can be fixed.

  Finally, the description of each embodiment described above is an example of the present invention, and the present invention is not limited to the above-described embodiment. For this reason, it is a matter of course that various modifications other than the above-described embodiments can be made according to the design and the like as long as they do not depart from the technical idea according to the present invention.

  For example, when the cheek canes C and D are connected and fixed to the horizontal pipe 2, the circular U-shaped bolt 56 having a uniform cross section is used, but the U-shaped bolt 56 is used instead of the connecting bracket B. A U-shaped bolt having a curved flat body 46 such as the U-shaped holding member 40 may be used.

It is a perspective explanatory view showing greenhouse A provided with the twist prevention structure of the arch member concerning this embodiment. It is the top view and perspective view of the intersection of the greenhouse provided with the twist prevention structure of the arch member which concerns on this embodiment. It is a disassembled perspective view of the intersection of the greenhouse provided with the twist prevention structure of the arch member which concerns on this embodiment. It is a disassembled perspective view of the intersection of the greenhouse provided with the twist prevention structure of the arch member which concerns on other this embodiment.

Explanation of symbols

1 Arch member 2 Horizontal pipe 3 Connecting member 4 Large arch pipe 5 Small arch pipe
20 Plate member
21 Recessed locking part
22 Wall
23 hole
26 ridges
40 U-shaped holding member
41 legs
42 Closed end
43 Opening edge
44 Male thread
45 nut
46 Curved flat body
50 carrying part
51 arms
60 Ribs A Greenhouse B Connecting bracket C Cheek cane member D Cheek cane member P Intersection Q Intersection R Intersection

Claims (3)

Two arch pipes having different curvatures are connected with a predetermined gap in the radius of curvature direction to form an arch member, and a plurality of the arch members are juxtaposed at intervals in the ridge direction. In a greenhouse structure that connects horizontal pipes arranged in the direction of the building,
A first arch pipe of the two arch pipes and the horizontal pipe are connected in an intersecting state, and a cheek cane member having a substantially isosceles triangle shape in plan view is interposed between the second arch pipe and the horizontal pipe. This cheek cane member is provided with a substantially U-shaped holding part for holding the second arch pipe in a plan view and an arm part extending from the holding part as a vertex. A twist preventing structure for an arch member in a greenhouse structure, wherein the structure is disposed so as to straddle a fixed portion where the first arch pipe and the horizontal pipe are connected.   The arch member twist prevention structure in a greenhouse structure according to claim 1, wherein a plurality of ribs are provided on the arm portion in the extending direction. The fixing part is
A pair of U-shaped holding members for holding the first arch pipe;
A plate-like member formed with a hole portion through which the opening-side end portion of the U-shaped holding member is inserted and a concave locking portion that locks the horizontal pipe;
A male screw threaded into the opening side end is screwed into a female screw member while being inserted into the hole, and the first arch pipe and the horizontal pipe are connected and fixed in an intersecting state. The twist prevention structure of the arch member in the greenhouse structure according to claim 1 or 2, characterized in.

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