JP3071631U - Joint fitting - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a "joint fitting" which is convenient for serially butt-connecting "double-type sheet stoppers" and "sheet stoppers with shelf fins". SOLUTION: Hold edges are formed on both side edges so as to hold and hold along the lower outer surfaces of both outer side walls of the double type sheet stopper. At least one hole is provided at each end.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 Basically, the idea is to use a "double sheet stopper" in which two independent sheet stopper grooves with narrow openings are formed in parallel through an intermediate joint. In accordance with the above, a joint metal fitting used to connect a `` seat stopper with fins '' in which the shelf fin plate on one side and the sheet stopper groove on the other side are formed in parallel via an intermediate joint, The joint metal fittings are applied to the technical field of corner joint metal fittings used for cross connection between the above-mentioned "double type sheet fixing material" and "dew receiving type sheet fixing material" and a greenhouse frame material. Belong.

[0002]

[Prior art]

 Conventionally, with regard to a sheet stopper having a sheet stopper groove with a narrow opening, an “outer joint” that butt-connects these members in series, or connects the sheet stopper in a cross-section with a greenhouse frame material, etc. Corner joint fittings have already been developed and used.

[0003] However, a "double-type sheet stopper" in which two independent sheet stopper grooves each having a narrow opening are formed in parallel through an intermediate joint, and a shelf fin plate on one side "Joint metal fittings" that butt-connect a series of "sheet stoppers with shelf fins", which are formed in parallel with the sheet stopper groove on the other side via an intermediate joint, or each of the sheet stoppers described above. There is still no suitable part for corner joint fittings that connect the truss with the greenhouse frame material, so development is urgently needed.

[0004]

[Problems to be solved by the present invention]

 Therefore, an object of the present invention is to provide a "joint fitting" which is convenient for abutting and connecting a series of the "double-type sheet stopper" and the "sheet stopper with shelf fin plate" described above. is there.

[0005] A second object of the present invention is to apply and divert the above-mentioned "joint fitting", which is convenient for connecting each of the sheet stoppers to a greenhouse frame material or the like in an intersecting manner. Corner joint fittings ".

[0006]

[Means for Solving the Problems]

 As means for solving the above-mentioned problem of the prior art, a joint fitting according to the invention of claim 1 is characterized in that two sheet stopper grooves having narrow openings are formed in parallel through an intermediate connecting portion. A joint fitting for connecting the formed double-type sheet stoppers, wherein both side edges are formed with holding edges for holding and holding tightly along the lower outer surfaces of both outer side walls of the double-type sheet stoppers, At least one hole is provided at each end.

In the joint fitting according to the second aspect of the present invention, a double-type sheet stopper member in which two sheet stopper grooves having narrow openings are formed in parallel through an intermediate joint is connected. A joint metal fitting, wherein a hold edge portion is formed on both side edges along a lower outer surface of both outer side walls of the double-type sheet stopper, and is held. A guide portion is formed between two outer side walls of two adjacent inner side walls, which forms two sheet stopping grooves in the sheet stopping member, and is formed to be long in a longitudinal direction to restrain both inner side walls. And

In the joint fitting according to the third aspect of the present invention, two sheet stopper grooves having narrower openings are connected to a double-type sheet stopper member formed in parallel via an intermediate joint. A joint metal fitting, on both side edges of which are formed holding edges which are held tightly along the outer surfaces of both outer side walls of the double-type sheet stopper and are provided with at least one hole at each end. A fastening hole formed at one end of a metal fitting body and a fastening portion formed at an end of a clamp portion having a shape substantially surrounding the outer shape of the greenhouse frame material. The bracket body and the connecting portion are rotatably connected to each other by matching the holes provided in the portions with bolts and nuts passed through both holes.

[0009] In the joint fitting according to the invention of claim 4, two sheet stopper grooves having narrower openings are connected to a double-type sheet stopper member formed in parallel through an intermediate joint. A joint metal fitting, wherein hold edge portions are formed on both side edges along the outer surfaces of both outer side walls of the double-type sheet stopper and held together, and at least one hole is provided at each end portion. A plurality of holes at one end of the fitting main body, and a fastening portion formed at the end of a clamp portion having a shape that substantially makes a round of the outer shape of the greenhouse frame material. And the fitting body is connected to the connecting member by bolts and nuts passed through both holes.

According to a fifth aspect of the present invention, in the joint fitting according to any one of the first to third aspects, two of the double-type sheet stoppers are provided at the center in the width direction of the fitting main body. It is characterized in that a guide portion is formed between the outer surfaces of two adjacent inner walls by forming a sheet stopping groove and is formed to be long in the longitudinal direction for binding the inner walls.

According to a sixth aspect of the present invention, in the joint fitting according to any one of the first to fifth aspects, the width between the holding edges on both side edges of the fitting body is one side of the shelf fin plate. And the sheet stopper groove on the other side are formed to be equal to the entire width of the sheet stopper with the shelf fin plate part, which is integrally formed in parallel through the intermediate joint part. It is characterized by being used for connecting lumber.

The invention according to claim 7 is the joint fitting according to any one of claims 3 to 6, wherein the sheet stopper is provided at a connecting portion between one end of the fitting main body and a fastening portion of the connector. An end cover for covering the end of the cover is integrally incorporated.

[0013] The invention according to claim 8 is the joint fitting according to any one of claims 1 or 3 to 7, wherein stop holes are provided at positions on both sides of the guide portion in the fitting main body along the longitudinal direction. The sheet stopper is fixed by pressing the side wall of the groove formed on the back side of the joint by a stopper inserted through the stopper hole.

[0014]

Embodiments and Examples of the Invention

 1 to 10 show a basic embodiment of a joint fitting (for butt connection) according to the invention of claim 1.

As shown in FIG. 1, a basic embodiment of the joint fitting 1 is shown in FIG. 1, and as shown in FIG. 2, two independent sheet retaining grooves 2a, 2a having narrow openings are used. Are used for the butt connection of the double-type sheet stoppers 2, 2 integrally formed in parallel through the intermediate connecting portion 2b.

For this purpose, on both side edges of the joint fitting 1, there are formed hold edges 1 a which are closely held along the lower outer surfaces of both outer side walls 2 c of the double-type sheet stopper 2 and are held. 3 to 5). One hole 1b is provided at the center of one end of the joint fitting 1 in the width direction, and two holes 1c, 1c are provided at the other end at an interval. Further, two sheet retaining grooves 2a, 2a in the double type sheet retaining member 2 are formed at the center in the width direction to be located between the outer surfaces of two adjacent inner side walls 2d, 2d. A guide portion 1g for restraining both inner side walls 2d, 2d is formed long in the longitudinal direction.

Incidentally, this joint fitting 1 is manufactured as a pressed product of an iron plate whose surface is rust-proofed, and has a length of about 150 mm and a maximum inner width dimension between the hold edges 1a and 1a on both sides. The double sheet stoppers 2, 2 are formed to have a size of about 75 mm, and are equally connected by about 75 mm each.

At both ends of the hold edge portion 1a, an invitation portion 1d is formed in which the curvature is reduced (rather, it stands substantially vertically) so as to facilitate the work of inserting the double-type sheet stopper 2. ing. Reference numeral 1e in FIG. 1 is a stopper provided at an intermediate position in the longitudinal direction of the hold edge portion 1a and bent so as to further sharpen its curvature. Restrict equally in this position.

The use state of the joint fitting 1 is illustrated in FIGS. 2 and 3 to 5. FIGS. 3 to 5 are sectional views showing the connection state of the double-type sheet stoppers 2A, 2B, and 2C having different forms. Each guide portion 1g forms two sheet retaining grooves 2a, 2a in the double-type sheet retaining member 2 and is located between the outer surfaces of two adjacent inner walls 2d, 2d so that both inner side walls 2d, 2d are formed. It will be understood that it restrains and prevents its elastic deformation and contributes to maintaining a strong connection.

In the joint fitting 1 of FIG. 1, one hole 1b is provided at the center of one end in the width direction, and two holes 1c, 1c are provided at the other end at an interval. However, since it is a component necessary for a mode of use as a corner joint fitting to be described later, it will be described at that time.

It is desired to stabilize (or fix) the connection state of the double-type sheet stoppers 2, 2 connected in series as shown in FIGS. 2 and 3 to 5 using the joint fitting 1 having the above configuration. Conventionally, a tapping screw that penetrates from the sheet fixing groove 2a toward the joint fitting 1 is screwed or spot-welded. However, in the former case, the presence of the screw greatly hinders the fastening of the sheet, and corrosion tends to progress from the position of the screw. In the latter case, welding equipment is indispensable, and there are problems such as the need for welding technology, which is inconvenient.

FIGS. 6 and 7 show alternative means according to the present invention. These are embodiments of the invention described in claim 8.

First, FIG. 6 will be described. In the joint fitting 1 having the above-described configuration, a stopper hole 1h is provided at a position on both sides thereof along the longitudinal direction of the guide portion 1g as shown in FIG. On the other hand, as shown in FIG. 6B, a bolt with a plate in which the center of a substantially square plate 3a is vertically fixed to one end of a bolt 3 having an outer diameter that can be inserted through the stopper hole 1h is prepared. The length of one side of the plate 3a is slightly larger than the minimum width of the downward groove formed on the back side of the joint 2b of the double sheet stopper 2. The bolt 3 with the plate is passed through the stop hole 1h in advance, and the nut 4 is loosely screwed in. Then, the double-type sheet stopper 2 is inserted, and the plate 3a is placed on the back side of the connecting portion 2b of the double-type sheet stopper 2. The connection hooked on the formed downward groove is made. If the nut 4 is strongly screwed in at the stage where the double-type seat stopper 2 is inserted and connected, the relationship between the double-type seat stopper 2 and the joint fitting 1 can be firmly fastened and fixed.

In the case of FIG. 7, keyhole-shaped stopper holes 1h 'are provided at positions on both sides of the guide 1g in the joint fitting 1 along the longitudinal direction as shown in FIG. 7C. On the other hand, as shown in FIG. 7B, a stopper is prepared in which a T-shaped head 5 having a width t that can be inserted through the maximum length r of the stopper hole 1h 'stands upright from the plate portion 5a. The double-type sheet stopper 2 is inserted into the joint fitting 1 and connected. When the insertion position of the double-type sheet stopper 2 is determined, the T-shaped head 5 of the stopper is passed through a stopper hole 1h ', When the plate portion 5a is rotated by about 90 ° at the stage where it is inserted sufficiently deep into the groove on the back side of the connecting portion 2b, both ends of the T-shaped head 5 are equal to the groove side wall formed on the back side of the connecting portion 2b as shown in FIG. 7A. The double-type sheet stopper 2 and the joint fitting 1 can be firmly pressed down and fixed.

It should be understood that each of the above embodiments is also common to the following different embodiments.

Next, FIGS. 8 to 10 show different embodiments of the joint fitting.

First, FIG. 8 shows an example in which holes 1b and 1c at both left and right ends of the joint fitting 1 are provided on each protruding piece 1k projecting from both ends. In short, it is a drafting plan for press working. Protrusions 2k are provided at both ends to form holes 1b and 1c, respectively.

FIG. 9 shows an embodiment of the joint fitting 1 in which three protrusions 1b and 1c are provided at both ends which are formed in a straight line without projecting pieces at both ends. The number of holes is not limited to this embodiment.

FIG. 10 shows an embodiment of the joint fitting 1 in which the guide portion 1 g ′ is formed by punching. The guide portion 1g 'is formed so as to form two sheet retaining grooves 2a, 2a in the double-type sheet retaining member 2 and to be almost in contact with the outer surfaces of two adjacent inner side walls 2d, 2d. The inner walls 2d, 2d are restrained.

Next, FIGS. 11 and 12 show an embodiment of the joint fitting according to the invention of claim 2. These are also examples for butt connection.

First, FIG. 11 shows an embodiment of a joint 1 for connecting a double-type sheet stopper 2 manufactured by extrusion of aluminum. This joint fitting 1 has a cross-sectional shape enlarged by an amount corresponding to the thickness of the double-type sheet stopper 2 and the outer holding edges 1a are initially set vertically as shown by dotted lines in FIG. 11B. You. The central guide portion 1g is formed by forming two sheet stopper grooves 2a, 2a of the double-type sheet stopper member 2, and is smaller by a thickness corresponding to the plate thickness so that the outer surfaces of the two adjacent inner side walls 2d, 2d are inscribed. Extrusion molding with an approximate cross-sectional shape. Then, the extruded product is cut to a length required for the joint fitting 1, and thereafter, with respect to both outer holding edges 1a, portions other than the guiding portions 1d at both ends thereof are bent and formed as post-processing. Produced. In other words, the extrusion mold for the double-type sheet stopper 2 can be slightly modified and slightly post-processed to make it relatively simple and inexpensive.

FIGS. 12A and 12B show an embodiment according to the same technical concept as the joint fitting of FIG. 11, but in which a guide 1g is formed in a T-shaped cross section. As shown in FIG. 12B, the T-shaped guide portion 1g also forms two sheet retaining grooves 2a, 2a of the double type sheet retaining member 2 to form two adjacent inner side walls 2d. , 2d are of such a size and shape that they can be caught on the outer surface and exert a restraining effect.

Next, an embodiment of the joint fitting according to the present invention will be described. These are specifically corner joint fittings.

First, FIG. 13 shows one joint provided at the center in the width direction at one end of a joint fitting 1 (hereinafter, referred to as a fitting main body 1) for connecting the double-type sheet stopper 2 having the above-described configuration. The embodiment of the universal type corner joint fitting using the hole 1b is shown.

That is, a coupling tool in which fastening parts 7b are formed at both ends (or one end is also possible) of a cylindrical clamp part 7a which makes a round of the outer shape of a metal pipe 6 which is a kind of a greenhouse frame material. 7 is prepared, the hole 1b at the one end of the metal fitting body 1 and the hole provided in the fastening portion 7b are made to coincide with each other, and connected to the metal fitting body 1 with bolts 8 and nuts passed through both holes. It is configured so as to be rotatably connected to the unit 7.

When this corner joint fitting is used, since the fitting main body 1 and the connecting tool 7 are so-called universal joints that can rotate, the double-type sheet stopper 2 is made of metal, which is a kind of greenhouse frame. The crossing relationship with the pipe 6 and the crossing angle can be connected (or connected) to any size.

Next, FIG. 14 shows an embodiment of a joint fitting (corner joint fitting) according to the invention of claim 4.

This corner joint fitting is constituted by using two holes 1 c at the other end of the fitting body 1.

That is, two cylindrical clamps 7a which form a round of the outer shape of a metal pipe 6 which is a kind of a frame material of a greenhouse, and which are formed with fastening portions 7b at both ends (or at one end). Are prepared, the two holes 1c, 1c of the metal fitting body 1 are aligned with the holes provided in the fastening portion 7b, and the bolt 8 and the nut are passed through both holes. , And is configured to connect the metal fitting body 1 and the two connecting portions 7 and 7.

When this corner joint fitting is used, the double-type sheet stopper 2 is connected to the metal pipe 6 which is a kind of a vinyl house frame, and the intersection angle is fixed exactly. (Or concatenation). If necessary, the connection between the metal fitting body 1 and the double-type sheet stopper 2 can be more firmly fixed by using the stoppers shown in FIGS. 6 and 7 described above.

Next, FIG. 15 shows an embodiment of a joint fitting (corner joint fitting) according to the invention of claim 7.

The basic configuration of the corner joint fitting is the same as the embodiment shown in FIGS. 13 and 14, but is characterized by the configuration using the end cover 9.

The end cover 9 is manufactured as a pressed product of a metal plate or a plastic injection molded product. As shown in FIG. 15B, the end cover 9 mainly includes a cover portion 9a having a U-shaped cross section that completely covers and hides the end portion of the double-type sheet stopper 2, and is provided on one side of the cover portion 9a. A plurality of bolt holes 9c are provided in the width direction of the extending fastening portion 9b.

When assembling the corner joint fitting by connecting the fitting main body 1 and the connecting portion 7 as in the above-described embodiment, the fastening portion 9 b of the end cover 9 is overlapped with the groove side of the fitting main body 1. It is assembled by aligning the bolt holes 9c with the holes 1b or 1c of the metal fitting body 1 and jointly connecting the bolts 8 together.

FIG. 15B illustrates a use state of the corner joint fitting. That is, when the sheet 11, which is a covering material for a greenhouse, is fastened to the sheet stopper groove 2a of the double-type sheet stopper 2 connected to the metal fitting body 1 with an elastic continuous wave-shaped stopper wire (not shown). The sheet 11 which has reached the end of the double-type sheet stopper 2 and has been fixed is led out of the sheet stopper groove 2a and stretched so as to be wound around the outer periphery of a metal pipe 6 which is a kind of framework material of the greenhouse. At this time, the contact between the sheet 11 and the end of the double sheet stopper 2 is completely blocked by the cover 9a of the end cover 9. Therefore, even if the end of the double-type sheet stopper 2 is cut only by, for example, shearing or by using a metal saw, etc., even if burrs or returns remain, there is no fear that the sheet 11 will be damaged and damaged. There is nothing.

Finally, A in FIG. 16 shows an embodiment of a joint fitting (and a corner joint fitting) according to the invention of claim 6.

The basic technical concept and the principle of construction of this joint fitting are the same as those of the joint fittings according to the first and second aspects and the corner joint fittings according to the third and fourth aspects. Relationships and connections are slightly different.

That is, a connection object is a sheet stopper member with a shelf fin plate part in which a shelf fin plate part 12c on one side and a sheet stopper groove 12a on the other side are integrally formed in parallel via an intermediate connecting part 12b. Twelve. Therefore, in brief, the joint fitting has an inner width dimension between the holding edges 1a, 1a on both side edges of the fitting main body 1 described above, and an overall width dimension of the sheet stopper 12 with the shelf fin plate. A metal fitting body 10 which is formed substantially equally is prepared. The two connecting members 7, 7 are connected to each other by using two (or even one) holes at one end of the metal fitting main body 10, thereby forming a corner joint metal fitting.

When this corner joint fitting is used, as illustrated in A of FIG. 16, the sheet stopper 12 with the fin plate portion is attached to the metal pipe 6 which is a framework of a greenhouse in various modes. Can be connected and mounted.

In particular, the shelf fin plate portion 12c is mounted in such a manner that the shelf fin plate portion 12c is located on the upstream side of the slope so as to be used as a dew receptacle for positively removing the dew condensation generated on the inner surface of the sheet of the greenhouse. It is convenient in cases. That is, there is no difference in the connection direction of the corner joint fitting. In the case of a joint fitting using two connecting members 7, 7 as in the illustrated example, the sheet stopper 12 with the fin plate portion can be attached to the metal pipe 6 in a state where it is strongly fixed to the metal pipe 6. When assembling or replacing seats, there is no need to worry about slipping or tilting even if workers put their feet on the feet, so it is safe.

Of course, if it is desired to fix the mounting state more firmly, it is possible to use the “stopper” described in the invention of the eighth aspect. The metal fitting body 10 of this corner joint metal fitting can be used alone for the butt connection of the dew-receiving sheet stoppers 12.

B in FIG. 16 shows a corner joint metal fitting for the double-type sheet stopper 2 by the metal fitting body 1 described above, and shows a use state of a universal joint type. Further, C and D in FIG. 16 show more preferable use examples of the same universal corner joint fitting.

That is, the end face of the greenhouse is formed by bending a metal pipe into six arches as shown in FIG. Therefore, when the double sheet stopper 2 and the like installed on the wife surface are arranged particularly vertically, there is a high need for a corner joint fitting that follows the inclination of the metal pipe 6 at the installation position.

In this regard, the universal corner joint fitting according to the present invention can be conveniently used as shown by C and D in FIG.

That is, C in FIG. 16 is an example of the use of a right-handed universal corner joint fitting that follows the right inclination of the arch pipe 6, and goes to a hole 1 c at the right end of the fitting body 1 (see FIG. 1). This is a configuration in which the connecting tools 7 are connected. Therefore, the metal fitting body 1 can be used without causing interference with the metal pipe 6.

On the other hand, D in FIG. 16 is an example of use of a left-handed universal type corner joint fitting which follows the left inclination of the arch pipe 6 and is connected to a hole 1c at the left end of the fitting body 1 (see FIG. 1). In this configuration, the components 7 are connected. Therefore, the metal fitting body 1 can be used without causing interference with the metal pipe 6.

Although the embodiments have been illustrated and described above, the present invention is not limited to these embodiments, and design modifications and application variations commonly performed by those skilled in the art without departing from the technical idea thereof. It is mentioned just to include the range.

[0058]

[Effects of the present invention]

 The joint fittings (and corner joint fittings) according to the invention described in claims 1 to 8 are convenient for butt-connecting the “double-type sheet stopper” and the “dew-receiving sheet stopper” in series. "Joint fitting".

Further, by applying and utilizing the joint fitting, it is possible to easily and inexpensively provide a “corner joint fitting” which is convenient for connecting each of the sheet stoppers in a cross shape with a vinyl house frame material or the like. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a joint fitting according to the present invention.

FIG. 2 is a perspective view showing a use state of the joint fitting.

FIG. 3 is a sectional view showing a connection state between the joint fitting and a double-type sheet stopper.

FIG. 4 is a cross-sectional view showing a connection state between a joint fitting and a different double-type sheet stopper.

FIG. 5 is a cross-sectional view showing a connection state between a joint fitting and a different double sheet stopper.

FIG. 6A is a sectional view showing a state in which the joint fitting and the double-type sheet stopper are connected by using a stopper, and FIG. 6B is a perspective view showing the stopper.

FIG. 7A is a cross-sectional view showing a state in which a joint fitting and a double-type sheet stopper are connected using different fasteners, B is a perspective view showing different fasteners, and C is a front view of a stopper hole.

FIG. 8 is a perspective view showing a different embodiment of the joint fitting.

FIG. 9 is a perspective view showing a different embodiment of the joint fitting.

FIG. 10 is a perspective view showing a different embodiment of the joint fitting.

FIG. 11A is a perspective view showing a different embodiment of a joint fitting, and FIG. 11B is a cross-sectional view showing a connection state of a double sheet stopper.

12A is a perspective view showing a different embodiment of a joint fitting, and FIG. 12B is a cross-sectional view showing a connection state of a double sheet stopper.

FIG. 13 is a perspective view showing a use state of the corner joint fitting according to the present invention.

FIG. 14 is a perspective view showing a use state of a corner joint fitting according to another embodiment of the present invention.

15A is a perspective view showing a use state of a corner joint fitting with an end cover, and FIG. 15B is a plan view thereof.

FIG. 16 is a perspective view showing a use state of different corner joint fittings on a wife surface of a greenhouse.

[Explanation of symbols]

 2a sheet retaining groove 2b connecting portion 2 double type sheet retaining member 1 joint fitting 1a hold edge 1b, 1c hole 1g guide portion 1d inner wall 7a clamp portion 7b fastening portion 7 connecting tool 9 end cover 12 with shelf fin plate Sheet stopper 1h Stop hole 3 Bolt with plate (stopper) 5 T-shaped head (stopper)

Claims (8)

[Utility model registration claims] 1. A joint fitting for connecting a double-type sheet stopper member formed in parallel with two sheet stopper grooves having narrow openings formed through an intermediate connecting part. A hold edge portion is formed along the lower outer surface of both outer side walls of the double-type sheet stopper so as to hold and hold the double-type sheet stopper, and at least one hole is provided at each end. Joint fittings. 2. A joint fitting for connecting a double-type sheet stopper member formed in parallel with two sheet stopper grooves having narrow openings formed through an intermediate connecting part. A hold edge portion is formed along the lower outer surface of each of the outer side walls of the double-type sheet stopper so as to hold and hold the two sheet-stoppers. And a guide portion formed between the outer surfaces of two adjacent inner walls to restrain the inner walls is formed to be long in the longitudinal direction. 3. A joint fitting for connecting a double-type sheet stopper material formed in parallel with two sheet stopper grooves having an opening formed narrower through an intermediate connecting part. A holding edge is formed along the outer surface of each of the outer side walls of the double-type sheet stopper, and is held by the holding edge, and at least one hole is provided at each end. The hole is aligned with the hole provided in the fastening portion of one connecting device having a fastening portion formed at an end of a clamp portion having a shape substantially making a full circumference of the greenhouse frame material. A joint fitting, wherein the fitting body and the connecting portion are rotatably connected by bolts and nuts passed through the holes. 4. A joint fitting for connecting a double-type sheet stopper material formed in parallel with two sheet stopper grooves having narrower openings through an intermediate connecting part. A plurality of holding end portions are formed along the outer surfaces of both outer side walls of the double-type sheet stopper and held together, and at least one hole is provided at each end. The holes are aligned with the holes provided in the fastening portions of the plurality of connecting members each having a fastening portion formed at an end of a clamp portion having a shape substantially making a round of the outer shape of the greenhouse frame material. Characterized in that the fitting body and the connecting piece are connected by bolts and nuts passed through the holes. 5. A double-walled sheet stopper having two sheet retaining grooves formed at a central portion in a width direction of a bracket main body to be positioned between outer surfaces of two adjacent inner side walls. The joint fitting according to any one of claims 1 to 3, wherein the guide portion for restraining the joint is formed long in the longitudinal direction. 6. The width between the holding edges on both side edges of the bracket main body is formed by integrally molding the shelf fin plate on one side and the sheet stopper groove on the other side in parallel via an intermediate connecting portion. The sheet stopper having the shelf fin plate portion is formed so as to have the same overall width as that of the sheet stopper member, and is used for connecting the sheet stopper member with the shelf fin plate portion. Joint fittings. 7. An end cover for covering an end of the sheet stopper is unitedly incorporated into a connecting portion between one end of the fitting main body and a fixing portion of the connecting tool. Claim 3-
6. The joint fitting according to any one of 6. 8. A stopper hole is provided at a position on both sides of the guide portion of the bracket main body along the longitudinal direction, and the stopper member inserted through the stopper hole allows the sheet stopper to be attached to the back side of the joint portion. The joint fitting according to any one of claims 1 to 3, wherein the joint fitting is fixed by pressing the formed groove side wall.