JP3032539U - Greenhouse structure connection fittings - Google Patents

Abstract

(57) [Abstract] (Corrected) [Problem] To have two functions of preventing the wedge tip from being caught when driving a wedge and preventing the wedge from coming off during use, and also firmly connecting and fixing structural materials. Provided is a connecting fitting for a plastic greenhouse structural material. SOLUTION: A central groove portion 21A of a wedge is formed in parallel with tapered lower edges on both sides, and only a wedge top end portion 21B of a flat upper surface on both sides of the central groove portion is raised diagonally forward and both sides. A recess 24A is formed in the middle of the taper-shaped lower edge portion, and retaining projections 26 are formed on both side surfaces of the wedge that is tapered overall, and at the lower end portions of both sides 16 of the connecting fitting body 15. When the tapered lower edges on both sides of the wedge are inserted along the formed wedge insertion groove to fasten the pipe in a cross shape, by driving the wedge 21, the front of the lower edge of the wedge and the recess The wedge 21 is formed by the inclined rear edge and the rear portion of the lower edge.
Is further pushed up to further tighten the cross-shaped pipe by the flat upper surfaces of both sides of the central groove, and the retaining projections 26 formed on both sides of the cross-shaped pipe are connected to the main body 15 of the connecting metal fitting.
It is configured to engage with both side edges 16 of the.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a connecting fitting for fastening structural members such as pipes used in a vinyl house in a cross shape or in a parallel shape, and in particular, a connecting fitting body having a U-shaped cross section and a central groove portion in the longitudinal direction. The present invention relates to a connecting fitting for a structural material used in a greenhouse, which can easily connect two pipes in a crossed manner or in a parallel manner by combining with a wedge which is formed and has both end edges bent to form a tapered lower edge portion.

[0002]

[Prior art]

 Conventionally, when building a vinyl house, etc., it has been well known that a thin-walled and lightweight structural pipe or the like is driven in to cross-connect using a wedge-type pipe fixing tool that uses a wedge. It is often used when it is necessary to firmly fix the structural material of the house.

In a conventional fixture, a pipe that intersects in a cross shape is bent into a U-shape in cross section, and a horseshoe-shaped cutout is formed in the center of both sides of the pipe, and the inner surface of the upper curved portion of the fixture and the horseshoe. It is supported by a notch with a shape, and the lower edges of both sides of the fixture body are folded inward toward each other, and the lower edges of both sides of the wedge with a U-shaped cross section are inserted into the wedge insertion grooves. Then, the intersecting pipes are connected by driving.

However, in the above-described conventional fixture, when the wedge is driven along the wedge insertion groove, the wedge insertion groove is separated in the driving direction by the horseshoe-shaped notch portion, and therefore the pipe incorporated therein. The tip of the wedge catches on the folded piece that forms the wedge insertion groove behind the wedge, and it is difficult to insert the lower edges of both wedges into the wedge insertion groove in the front, and the driving work is troublesome and work efficiency is poor. was there.

Further, in this type of fixture 9A, as shown in FIG. 6, the lower edges of both sides of the wedge-shaped wedge having a U-shaped cross section are inserted into the wedge insertion grooves parallel to each other. Since the upper surface of the wedge 3 that contacts 2 is in contact with the slope, there is a gap G in the upper part, and every time it is shaken by wind pressure, the connecting part of the two parallel pipes is squeaked by external force, and its fixing part is easily loosened, and finally it becomes loose. There was also a drawback that the wedge would come off. Further, in the case shown in FIG. 7, the tip 13 of the wedge 3 is caught when driving, and it is difficult to insert the lower edges of both sides of the wedge into the front wedge insertion groove 12, and the driving work is troublesome. There was a big drawback that work efficiency was poor.

Therefore, in order to prevent the wedge tip from being held when the wedge is driven in and to prevent the wedge from coming off during use, the wedge of the wedge-type connecting device proposed by Japanese Utility Model Publication No. 5-567 is used. As shown in FIGS. 8 and 9, the wedge 3 having a U-shaped cross section forms a number groove as a whole, and when viewed from the side, it has a tapered shape, and its tip 13 passes behind the pipe 2. To form a curved curve 6 and a recessed step 8 is formed at the base of each side surface 7. The wedge 3 has a curved curve 6 at the tip of the wedge 3 along the back of the pipe 2. When it is inserted into the lower wedge insertion groove 10 of the connector body 9 as shown in FIG. 8, the tip 13 is located above the wedge insertion groove 12 on the front side in the wedge driving direction divided by the horseshoe-shaped notch 11 as shown in FIG. Enter to bite, The wedge insertion groove 12 on the front side is reached. Then, once the wedge 3 is completely driven in, the legs 8 of the connector body, which are expanded by the wedge action, are inserted inside the retaining step 8 formed on the side surface 7 thereof as shown in FIG. Since it deforms so as to bite into it, the step 8 has a retaining function.

On the other hand, the wedge-fastening pipe connector proposed by Japanese Utility Model Laid-Open No. 6-20908 has a substantially inverted U-shaped notch 5 formed from a lower end of a substantially central portion thereof along a lower end edge. It comprises a connector main body 1 in which a wedge insertion guide 6 is formed, and a wedge 7 having a U-shaped cross-section that is driven along the insertion guide 6, and the wedge 7 has a cutout portion. A leg portion 7a having the same height is projectingly provided at two front and rear portions corresponding to the front and rear two insertion guides 6 and 6 divided by 5, and an inclined guide is provided on the front side in the driving direction of the leg portion 7a. 7b is formed. Since the heights of the two projecting legs 7a, 7a in front of and behind the wedge 7 are equal, the pipe 4 is supported on the horizontal surface of the wedge 7, and its restraining force F is always in the center of the pipe 4. It acts as a heading force. Therefore, it is described that there is no need for the retaining stopper 2b unlike the conventional wedge 2.

When connecting the two pipes in a cross shape, the wedge 7 is inserted under the lower pipe 4 so that the front leg portion 7a first passes through the front insertion guide 6, As it is straight forward and driven in, the front and rear two protruding legs 7a, 7b have the front inclined guides 7b overcoming the front edges of the two corresponding insertion guides 6, 6 at the same time. It is described that the inclined portion 2a provided at the tip of the conventional wedge 2 is useless because it moves to a state of being connected and fixed. Further, when fixing two pipes in parallel, the two pipes 3 and 4 are superposed parallel to each other along the folded-back portion 1a of the connector body 1 and then laterally formed in the recess 7c on one side of the wedge 7. After arranging the one insertion guide 6 on one side in a hooked manner, the wedge 7 is rotated in the lateral direction and pushed into between the insertion guide 6 on the other side. After that, it is described that the two pipes 3 and 4 can be connected and fixed by hammering a wedge 7 in the longitudinal direction with a hammer.

[0009]

[Problems to be solved by the device]

 However, in the wedge of the wedge type coupling device proposed by Japanese Utility Model Publication No. 5-567, the wedge insertion groove on the front side in the wedge driving direction in which the tip 13 of the wedge 3 is divided by the horseshoe-shaped notch 11. Even if it reaches the upper side of 12, the side surfaces of the wedge tip are not accurately inserted into the wedge insertion groove 12 at the time of driving the wedge, but rather the lower ends of both sides forming the wedge insertion groove 12 of the connector body 9. There is a drawback in that the wedge tips 13 hit the folded pieces formed by folding the parts inwardly to damage the lower end portions on both sides of the connector body 9.

Also, in terms of preventing the wedge from coming off when using the vinyl house, if the retaining step 8 formed on the side surface 7 of the wedge 3 is formed to be large, it is useful for preventing the retaining, but at the time of driving the wedge 3. This wedge base does not enter the groove 10 by hitting the lower wedge insertion groove 10 of the connector body 9, but if it is forcibly driven, the groove 10 will be expanded and the base of the wedge 3 will come off the wedge insertion groove 10. The retaining step 8 will no longer function. On the contrary, if the retaining step 8 is formed to be small, the wedge base can be easily inserted into the lower wedge insertion groove 10 of the connector body 9, but there is no retaining prevention effect, and in addition to the above-mentioned conventional fixture. Similarly, because the upper surface of the wedge 3 that contacts the pipe 2 is in contact with the one sloped in one direction, the connecting portion of the two pipes 1 and 2 that intersect in a cross shape each time the vinyl house shakes due to wind pressure squeaks due to external force, Since there is no resistance to prevent slipping out, the fixed part gradually loosens and is completely useless in preventing slipping out. Therefore, the wedge of the wedge-type connector proposed in Japanese Utility Model Publication No. 5-567 has a drawback that it cannot fulfill the two functions of preventing the wedge tip from being held and preventing the wedge from coming off when driving the wedge. It was

Furthermore, the wedge-type pipe connector proposed by Japanese Utility Model Laid-Open No. 6-20908 corresponds to two front and rear insertion guides 6 and 6 divided by the notch portion 5 of the connector body 1. Since the leg portions 7a of the same height project from the two front and rear parts, the lower pipe 4 is, so to speak, pressed and supported in parallel by the horizontal planes of the wedges 7 supported at both ends, so that the wedge action is achieved. When two pipes are connected in a cross shape without working at all, the vinyl house easily loosens each time it is shaken by wind pressure during use and easily slips off, and there is no function to prevent the wedge from coming off. There was a drawback. Further, when fixing two pipes in parallel, the two pipes 3 and 4 are superposed in parallel along the folded-back portion 1a of the connector main body 1 and then the concave portion 7c on one side of the wedge 7 is formed. After arranging the one insertion guide 6 on one side in a horizontal direction so as to be hooked, it is necessary to rotate the wedge 7 laterally and push it into the insertion guide 6 on the other side. Since the work of driving the wedge 7 in the longitudinal direction is required, the installation work is complicated, and not only the protruding leg portion 7a of the wedge 7 has the same height, but also the upper surface of the wedge 7 is flat. Therefore, since the pipe 4 is, so to speak, only pressed and supported in parallel by the horizontal planes of the wedges 7 which are supported at both ends, there is a disadvantage that the wedge action does not work at all and easily loosens and falls out during use of the house.

The present invention has been made in view of the above circumstances, and has both perfect functions of preventing the wedge from being caught at the time of driving a wedge and preventing the wedge from coming off during use. Moreover, for the purpose of providing a connecting member for a vinyl house structural material, which uses a driving wedge, which can firmly connect and fix the structural material of the vinyl house in a cross shape or even when two pipes are parallel to each other. There is.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention forms a horseshoe-shaped cutout from the lower end at the center of both sides of a thin plate with a U-shaped cross section, and folds the bottom ends of both sides inward. A connecting fitting main body having a wedge insertion groove formed therein, and a wedge having a central groove portion formed in the longitudinal direction and having both end edges bent to form a tapered lower edge portion. The central groove part of is formed parallel to the lower edge of the taper shape on both sides, and only the wedge tip of the flat upper surface on both sides of the central groove part is raised diagonally forward, and is tapered on both sides. A recess is formed in the middle of the lower edge, and the tapered lower edges on both sides of the wedge are engaged along the wedge insertion grooves formed on the lower ends of both sides of the connecting fitting body. Characterized by In addition, a connecting metal fitting in which a horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate with a U-shaped cross section, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure material, which comprises a main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge is tapered on both sides. It is formed in parallel with the lower edge of the central groove, and only the wedge tips of the flat upper surface on both sides of the central groove are raised diagonally forward, and a recess is formed in the middle of the tapered lower edge on both sides. The recess is provided with a slanted rear edge, and the retaining tape is formed on both side surfaces of the wedge having a tapered overall shape. Along the wedge insertion groove When inserting the tapered lower edges on both sides of the wedge, the tapered lower edges on both sides of the wedge and the slanted rear edges of the recesses further push up the wedge, and are formed on both sides of the wedge. The feature is that the retaining protrusions are configured to engage with both sides of the connecting metal fitting body.

Further, a horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate whose cross section is bent in a U shape, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure, which comprises a connecting fitting main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge has both sides. Is formed parallel to the tapered lower edge of the center groove, and only the wedge tips of the flat upper surface on both sides of the central groove are raised diagonally forward, and the middle of the tapered lower edge on both sides. A concave portion is formed in the portion, a slanted rear edge is provided in the concave portion, and retaining projections are formed on both side surfaces of the wedge that has a tapered shape as a whole. Formed wedge insert When the tapered lower edges on both sides of the wedge are inserted along the insertion groove to connect the pipes in a cross shape, the wedge is driven so that the front of the lower edge of the wedge and the recess are inclined. The wedges are pushed further up by the rear edge and the rear edge of the lower edge to further tighten the cross pipes by the flat upper surfaces on both sides of the central groove, and the retaining projections formed on both sides of the wedge are connected. It is characterized in that it is configured to engage with both sides of the metal fitting body, and a horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate with a U-shaped cross section, and both sides A connecting metal fitting main body in which the lower ends are folded back inward to form a wedge insertion groove, and a central wedge is formed in the longitudinal direction, and both ends are bent to form a tapered wedge-shaped wedge. In the connecting member for house structure material, the central groove portion of the wedge is formed parallel to the tapered lower edge portions on both sides, and only the flat upper surface wedge tip portions on both sides of the central groove portion are slanted forward. A wedge insertion groove formed at the lower end of each side of the connecting metal fitting body is formed by forming a recess in the middle of the tapered lower edge on both sides to make it stand up. When inserting the tapered lower edges on both sides of the wedge along with to fasten the parallel pipes, the wedge is driven into the front edge of the lower edge of the wedge and the inclined rear portion of the recess. The wedge is further pressed by the rear portions of the rim and the lower edge so that one of the parallel pipes is clamped by the central groove of the wedge and tightened in parallel, and the retaining projections formed on both sides of the wedge are It is characterized that you configured to lock on both sides of the sintered metal body.

Further, the wedge used for the connecting fitting has a central groove portion formed in the longitudinal direction, and both end edges are bent to form a tapered lower edge portion, and the central groove portion has a taper shape on both sides. It is formed in parallel with the lower edge, and the flat upper surfaces of both sides of the central groove are flat, and only the tips of the wedges rise diagonally forward, and the middle of the tapered lower edge on both sides of the wedge is formed. A feature is that a concave portion is formed, an inclined rear edge is provided in the concave portion, and a retaining protrusion is formed on both side surfaces of the wedge.

[0016]

[Embodiment of device]

 Next, an embodiment of the present invention will be described. When connecting and fixing two intersecting pipes, one of the pipes is held in a connecting fitting body whose cross section is bent in a U shape, and the other is intersecting. Inserting the pipes into the horseshoe-shaped cutouts formed on both sides, the wedges are formed by folding the wedges inward at the lower end of both sides of the connecting metal fitting body. The folded pieces that make up the wedge insertion groove are inserted into both sides of the wedge tip along the inside of the downward groove that rises diagonally forward and when the wedge is driven in, the wedge driving direction is divided by the horseshoe-shaped notch. The folded pieces that make up the pair of wedge insertion grooves on the front side automatically enter into the downward groove of the wedge tip rising diagonally forward, and the wedge blocks the lower pipe that is assembled in a cross shape. Instead, the folding piece that forms the wedge insertion groove on the front side easily enters the tip groove that rises diagonally to the front of the wedge tip, and while passing through this downward groove, use this tip groove as a guide on both sides of the wedge. The lower edge is automatically introduced into the wedge insertion groove on the front side in the wedge driving direction.

After that, when the wedge is further driven, the lower edges of both sides of the wedge move along the folded-back pieces that are formed in the lower end portions of both sides of the connecting fitting body and that are inclined inward and backward in the longitudinal direction. Therefore, the upper surface of the wedge goes through the lower pipe without being touched by the upper pipe for a certain period at the beginning of the insertion. At that time, since a recess is formed in the middle part of the tapered lower edge part on both sides of the wedge, the middle part of the wedge passes through the lowermost part of the lower pipe, and the rear part of the lower end of each side of the connecting metal fitting body is passed. Proceed without touching the pipe until the wedge insertion groove on one side touches the slanted rear edge of the recess in the wedge, and when this wedge insertion groove touches the slanted rear edge of the recess, both sides of the wedge are contacted. The wedge is further pushed up from the front of the tapered lower edge of the recess and the sloping rear edge of the recess to the rear of the lower edge, further tightening the lower pipe on its upper surface and firmly tightening the two pipes. Connect and fix in a cross shape. Furthermore, when the wedge is driven in, the retaining protrusions provided on both sides of the wedge project elastically and engage with the lower ends of both sides on the rear side of the connecting metal fitting body, so that the wedge cannot move back and forth sufficiently. Since it does not come off easily, even if the structural material shakes due to wind pressure during the use of the vinyl house, the connecting part of the two pipes that cross in a cross shape will not loosen, and it can be used for a long time of using the vinyl house.

When two plastic greenhouse structural members are fastened in parallel to each other, as in the case of a cross shape, along both sides of the wedge along the wedge insertion grooves formed at the lower end portions of both sides of the connecting fitting body. When the tapered lower edge is inserted and the wedge is driven in, the wedge-shaped notches are divided by the horseshoe-shaped notch, and the folded-back pieces that form a pair of wedge insertion grooves on the front side in the wedge driving direction rise diagonally forward. The wedge automatically enters the downward groove of the tip, the wedge is not hindered by the two pipes incorporated, and the folding piece that constitutes the wedge insertion groove on the front side easily rises diagonally forward of the wedge tip. While entering the groove and passing through this downward groove, the lower edges on both sides of the wedge are automatically introduced into the wedge insertion groove on the front side in the wedge driving direction using this tip groove as a guide. You.

Further, when the wedge is driven in, the wedge moves along the folding pieces that form the insertion grooves inclined inward in the longitudinal direction formed at the lower end portions of both sides of the connecting fitting body. For a certain period of time, the upper surface of the wedge moves without touching the two built-in pipes. At that time, since the recesses are formed in the middle parts of the tapered lower edges on both sides of the wedge, the middle part of the wedge passes past the central part of the connecting metal fitting body and is located on the rear side of the lower end parts on both sides of the connecting metal fitting body. Until the wedge insertion groove touches the slanted rear edge of the concave part of the wedge, proceed without touching the pipe in that state, and when the rear edge touches the wedge insertion groove, the taper on both sides of the wedge tapers. A wedge formed by pressing the front edge of the lower edge and the inclined rear edge of the recess to the rear edge of the lower edge in parallel with the tapered lower edge on both sides. One of the pipes enters the groove, and the central groove tightly clamps the one pipe and tightens it. As a result, the two pipes are firmly fixed in parallel. Furthermore, when the wedge is driven in, it is clamped by the central groove of the wedge, and the diagonal retaining projections provided on both sides of the wedge project elastically to engage with the lower end of the rear side of the connecting metal fitting body, resulting in a wedge. Since it cannot move back and forth and has a sufficient retaining effect, the connecting part of the two pipes that are fastened in parallel will not loosen even if the structural material shakes due to wind pressure while using the vinyl house, and the vinyl house It can be used for a long time.

[0020]

【Example】

 Next, referring to the drawings, an embodiment of a connecting fitting for a vinyl greenhouse structure according to the present invention will be described. FIG. 1 is a perspective view of this embodiment, and FIGS. 2 and 3 are wedge insertions of this embodiment. It is a side view which shows a state, and FIG. 4 is a perspective view of a wedge.

In the figure, the connecting metal fitting body 15 of this embodiment has horseshoe-shaped notches 17 and 17 formed from the lower end to both side edges 16 and 16 of a thin plate whose upper portion is bent in a U-shape in section. The rear lower end portions 18 and the front lower end portions 18A are folded back inward to form a pair of rear wedge insertion grooves 19 and a pair of front wedge insertion grooves 19A. Curved recesses 20, 20 are provided above the notches 17, 17, and the pair of recesses 20, 20 hold the pipe 1 in both sides 16, 16 of the connecting fitting body 15.

On the other hand, the wedge 21 has a central groove portion 21A formed in the longitudinal direction, and both end edges are bent to form a tapered lower edge portion 24. The central groove portion 21A has tapered lower edge portions 24 on both sides. Wedges having flat upper surfaces on both sides of the central groove portion 21A, and only the leading end portions 21B are raised diagonally forward, and a concave portion 24A is formed in the middle portion of the tapered lower edge portion 24 on both sides. The recessed portion 24A is provided with an inclined rear edge 24B, and the wedge 21 is provided with a retaining projection 26 which opens rearward on both side surfaces 25 of the wedge which is tapered. Therefore, a pair of downward tip grooves 22, 22 are formed on the lower surface of the wedge tip portions 21B on both sides of the central groove portion 21A. Reference numeral 27 is a round hole formed in the central groove portion 21A, and reference numeral 28 is a reinforcing rib of the main body. When driving, the lower edges 24 of the wedge 21 are respectively inserted into a pair of wedge insertion grooves 19 and 19A formed at the lower ends 18 on the rear side and the lower ends 18A on the front side of the connecting metal body 15. The pair of front end groove portions 22 of the wedge 21 are inserted into the wedge insertion grooves 19 and 19A formed at the lower end portions 18 and 18A of both sides of the connecting fitting main body 15 to form the folded pieces 23 and 23A. The lower edges 24 and 24 on both sides of the wedge are introduced into the wedge insertion grooves 19 and 19A, respectively.

When connecting and fixing the two intersecting pipes 1 and 2 which are the structural materials of the vinyl house using this embodiment, one upper pipe 1 is a connecting pipe having a U-shaped cross section. As shown in FIG. 2, the wedge 21 is gripped by the recesses 20 in the main body 15 of the metal fitting, and the lower pipe 2 intersecting with the other is inserted into the horseshoe-shaped notch 17 formed on both sides 16. Is formed at the lower end portions 18 and 18A of both sides of the connecting fitting body 15 by folding back inwardly to form a pair of wedge insertion grooves 19 on the rear side in the wedge driving direction. The wedge tips are inserted into the pair of wedge insertion grooves 19A on the front side divided by the horseshoe-shaped notches 17 so as to be inserted into the downward grooves 22 formed on both sides of the groove portion 21A and obliquely rising forward. When driven in, the folding pieces 23A forming the pair of wedge insertion grooves 19A on the front side automatically enter into the downward groove 22 of the wedge tip rising diagonally forward, and the wedges are assembled in a cross shape. While not being hindered by the lower pipe 2, the folding piece 23A which constitutes the wedge insertion groove 19A on the front side easily passes through the tip groove 22 while passing through the downward tip groove 22 which obliquely rises forward of the wedge tip. As a guide, the lower edges 24 on both sides of the wedge are automatically introduced into the wedge insertion groove 19A on the front side in the wedge driving direction.

After that, when the wedge is further driven in, the wedge-shaped lower edge portions 24 along the folded-back pieces 23, 23A constituting the longitudinally-front and rear-side insertion grooves 19, 19A formed at the lower end portions of both sides of the coupling fitting body 15. , 24 move, and as shown in FIG. 3, the wedge upper surface passes through the lower pipe 2 without being touched by the upper surface of the wedge for a certain period of the first insertion. At this time, since the recessed portion 24A is formed in the middle portion of the tapered lower edge portion 24 on both sides of the wedge, the middle portion of the wedge passes through the lowermost portion of the lower pipe 2 and the lower ends of both sides of the connecting metal fitting body 15 are passed. The wedge insertion groove 19 on the rear side of the portion 16 advances without touching the pipe in that state until the inclined rear edge 24B of the concave portion 24A provided in the wedge comes into contact with the wedge insertion groove 19, and the inclination of the concave portion 24A is inserted into the wedge insertion groove 19. When the raised rear edge 24B comes into contact, the wedge is further pushed up from the front portion 24C of the tapered lower edge portion 24 on both sides of the wedge and the inclined rear edge 24B of the concave portion 24A to the rear portion 24D of the lower edge portion 24. Tighten the lower pipe 2 with the upper surface of the wedge, and firmly connect the two pipes in a cross shape. Further, when the wedge is driven in, the retaining projections 26 provided on both side surfaces 25 of the wedge project elastically and are locked to the lower end portions 16 on the both sides of the rear side of the coupling fitting body 15, and as a result, the state shown in FIG. 1 is obtained. Since the wedge cannot move back and forth and has a sufficient retaining effect, the connecting part of the two pipes that cross in a cross shape does not loosen even if the structural material shakes due to wind pressure while using the vinyl house. Can be used for long-term use of vinyl houses.

Further, as shown in FIG. 5, when two pipes, which are a greenhouse structural material, are fastened in parallel, the lower end portions on both sides of the connecting metal fitting body 15 are connected in the same manner as the cross shape. Inserting the tapered lower edge portions 24 on both sides of the wedge along the wedge insertion grooves 19 and 19A formed in 16, and driving the wedge 21, the horseshoe-shaped notch portion 17 cuts in the wedge driving direction. The folded piece 23A forming the pair of wedge insertion grooves 19A on the front side automatically enters the downward groove portion 22 of the wedge tip rising diagonally forward, and the wedge 21 interferes with the two pipes 1 and 2 incorporated therein. Without folding, the folding piece 23A which constitutes the front wedge insertion groove 19A easily enters the front end groove 22 of the wedge, which rises diagonally forward of the front end, and passes through the downward groove 22. While passing, the lower edge portions 24 on both sides of the wedge are automatically introduced into the wedge insertion groove 19A on the front side in the wedge driving direction by using the tip groove 22 as a guide.

Further, when the wedge is driven in, the wedge moves along the folding pieces 23, 23A forming the insertion grooves 19, 19A in the longitudinal direction formed in the lower end portions of both sides of the connecting fitting body 15, so that the wedge is inserted. For the first certain period of time, the wedge upper surface moves without touching the two pipes 1 and 2 incorporated therein. At this time, since the recessed portion 24A is formed in the middle portion of the tapered lower edge portion 24 on both sides of the wedge, the wedge middle portion passes through the central portion of the connecting metal fitting body 15 and lower end portions on both sides of the connecting metal fitting body. Until the wedged groove 19 on the rear side of the 16 comes into contact with the inclined rear edge 24B of the recess 24A formed in the wedge, proceed in that state without touching the pipe, and the rear edge 24B is inserted into the wedge groove 19. When contacted, the wedge is further pressed from the front portion 24C of the tapered lower edge portion 24 on both sides of the wedge and the inclined rear edge 24B of the recessed portion 24A to the rear portion 24D of the lower edge portion 24 so that the central groove portion 21A. Tighten one pipe 2 more firmly and firmly fix the two pipes 1 and 2 in parallel. Further, when the wedge is driven, it is strongly clamped by the central groove portion 21A of the wedge, and the retaining projections 26 provided on both side surfaces 25 of the wedge are elastically projected to engage with the lower end portions 16 on both sides of the rear side of the connecting metal fitting body 15. As a result, the wedge cannot move back and forth and has a sufficient slip-out prevention function, so that the connecting portion of the two pipes that are fastened in parallel will loosen even if the structural material shakes due to wind pressure while using the greenhouse. It can handle long-term use of vinyl houses.

According to the present embodiment, only the both side portions of the central groove portion 21A of the wedge tip are raised obliquely forward to form the tip groove 22, and the tapered lower edge portion 24 on both sides of the wedge is formed. Since it is adapted to be engaged with the wedge insertion grooves 19 and 19A of the connecting fitting body 15, the wedge tip at the time of driving the wedge is divided by the horseshoe-shaped notch portion 17 of the connecting fitting body 15 in the wedge driving direction. It is possible to completely prevent it from being caught in the pair of wedge insertion grooves 19A, and when the wedge 21 is once hammered in and the two pipes 1 and 2 are tightened and fixed in a cross shape, the wedges are ejected in the driving direction or in the opposite direction. Since it cannot move in either direction and has a sufficient retaining effect, two pipes that intersect in a cross shape even if the structural material shakes due to wind pressure while using the vinyl house There is no slack in the joints between 1 and 2 and the effect is that it can be used for a long time in a greenhouse.

When two pipes are fastened in parallel, the upper surface of the wedge moves without touching the two pipes 1 and 2 incorporated therein for a certain period at the beginning of insertion, and the main body of the connecting metal fitting is connected. Until the inclined rear edge 24B of the recess 24A formed in the wedge comes into contact with the rear insertion groove 19 at the lower end of each side edge of the fifteen, proceed without touching the pipe in that state, and then the wedge insertion groove on the rear side. When the rear edge 24B of the recess comes into contact with 19, the wedge is further formed by the front portion 24C of the tapered lower edge portion 24 on both sides of the wedge and the inclined rear edge 24B of the concave portion to the rear portion 24D of the lower edge portion 24. It is possible to press the two pipes 2 uniformly and firmly in the central groove 21A so that the two pipes can be firmly stopped in parallel.

[0029]

[Effect of device]

 According to the present invention described above, the central groove portion of the wedge is made parallel with the tapered lower edge portion, and only both side portions of the wedge tip portion are raised diagonally forward, and the tapered lower edge portions on both sides of the wedge are formed. Since it is designed to engage with the wedge insertion groove formed on the lower end of both sides of the connecting metal fitting body, the wedge tip at the time of driving the wedge is divided by the horseshoe-shaped notch part of the connecting metal fitting body. It is possible to completely prevent it from being caught in the pair of wedge insertion grooves on the front side of the wedge, and use the tip grooves rising diagonally forward of the tip of the wedge to guide the lower edges of both sides of the wedge to the lower edges of both sides of the connecting bracket body. It can be securely engaged with the wedge insertion groove formed in the wedge part, and the wedge tip end groove allows the folded piece formed at the lower end part on both sides of the connecting metal fitting body to pass through the inside of the tip groove. Can be introduced side lower edge exactly the wedge insertion groove, and automatically. Therefore, it is possible to reliably prevent the wedge tip from being caught when driving the wedge.

Moreover, a concave portion is formed in the middle of the tapered lower edge portion on both sides, and the inclined rear edge is provided in this concave portion, and the concave portion is formed on both side surfaces of the wedge which is tapered overall. Since the stopper projection is formed, when the wedge is driven, the wedge is not obstructed by the lower pipe assembled in a cross shape, and the upper surface of the wedge touches the lower pipe assembled for a certain period of time at the beginning of the insertion. Without the middle part of the wedge passing through the lowermost part of the lower pipe, the pipe is completely inserted into the wedge insertion groove on the rear side of the lower end of both sides of the connecting fitting body until the inclined rear edge of the recess provided in the wedge comes into contact. You can proceed without touching it, and when this wedge insertion groove comes into contact with the slanted rear edges of the recesses in the wedge, the front part of the tapered lower edge on both sides of the wedge and the slanted part of the recess Rear edge The rear edge of the lower edge further pushes up the wedge, and the upper surface of the wedge strengthened by the central groove further tightens the lower pipe to firmly connect and fix the two pipes. Further, the retaining protrusion is elastically protruded and locked to the lower end of the rear side of the connecting fitting body, so that the retaining effect is great, and once the wedge is driven in, the two pipes are tightened in a cross shape to ensure the safety. The wedges cannot move either in the driving direction or in the opposite exit direction, and it has a sufficient retaining effect, so the connection and fixing work is easy, and the structural material shakes due to wind pressure while using the greenhouse. Also, there is no slack in the connecting part of the two pipes that cross in a cross shape, which is effective for long-term use of the greenhouse.

Further, when two plastic greenhouse structural members are fastened in parallel, as in the case of the cross shape, along the wedge insertion grooves formed at the lower end portions of the both sides of the connecting metal body, the wedges on both sides of the wedge are formed. When the lower edge of the taper shape is inserted and the wedge is driven in, the folded-back pieces that make up the pair of wedge insertion grooves on the front side in the wedge driving direction, which are divided by the horseshoe-shaped notch, are automatically slanted forward. The wedge enters into the downward groove of the rising wedge tip, and the wedge is not obstructed by the two pipes incorporated in the main body of the connecting metal, and the folding piece that constitutes the wedge insertion groove on the front side is easily diagonally forward of the wedge tip. While entering the tip groove that rises up and passing through this downward groove, use the tip groove to guide the lower edges of both sides of the wedge into the wedge insertion groove on the front side in the wedge driving direction. It has the effect of being automatically introduced. Therefore, even if parallel locking is used, it is possible to reliably prevent the wedge tip from being caught when driving the wedge.

Moreover, a recess is formed in the middle of the tapered lower edge on both sides, and the recessed rear edge is provided in the recess to prevent slippage on both sides of the wedge that is entirely tapered. Since the projection is formed, the wedge can be moved for a certain period of time at the beginning of insertion without touching the two built-in pipes, and the wedge is provided in the rear insertion groove on the lower end of both sides of the connecting fitting body. The pipe can be advanced without touching the pipe until it touches the slanted rear edge of the recess, and when the rear edge of the recess contacts the rear wedge insertion groove, the tapered bottoms of both sides of the wedge are The wedge is further pressed by the front part of the edge part and the rear part of the lower edge part from the slanted rear edge of the concave part, and one of them is formed in the central groove part formed parallel to the tapered lower edge parts on both sides. Pa The pipes can be evenly and tightly tightened so that the two pipes can be firmly fixed in parallel. Furthermore, the slanted retaining projections on both sides of the wedge project elastically and engage with the lower end of the rear side of the main body of the metal fitting, so that the wedge cannot move forward and backward, providing a sufficient retaining effect. The fastening and fixing work is easy, and even if the structural material shakes due to wind pressure during use of the vinyl house, the connecting part of the two pipes that are fastened in parallel does not loosen, and it is effective for long-term use of the vinyl house. is there.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which pipes of this embodiment are cross-connected in a cross shape.

FIG. 2 is a side view showing an initial insertion state of the wedge of this embodiment.

FIG. 3 is a side view showing an inserted state of the wedge of the present embodiment in an intermediate period.

FIG. 4 is a perspective view of the wedge of this embodiment.

FIG. 5 is a perspective view showing a state in which the pipes of this embodiment are connected in parallel.

FIG. 6 is a side view showing a state in which conventional pipes are connected in parallel.

FIG. 7 is a side view showing a wedge driving state of a conventional example.

FIG. 8 is a side view illustrating an initial insertion state of a wedge of a conventional example.

FIG. 9 is a side view showing a state in which conventional pipes are cross-connected in a cross shape.

[Explanation of symbols]

 1, 2 Pipes 15 Connecting bracket body 16 Both sides 17 Notches 18, 18A Lower end 19, 19A Wedge insertion groove 20 Recess 21 Wedge 21A Central groove 21B Tip 22 End tip 23, 23A Folding piece 24 Lower edge 24A Recess 24B Rear Edge 24C Front 24D Rear 25 Wedge Side 26 Locking Protrusion 27 Round Hole 28 Rib

Claims (5)

[Scope of utility model registration request] 1. A horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate having a U-shaped cross section, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure, which comprises a connecting metal fitting main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge is tapered on both sides. Formed parallel to the lower edge of the central groove, only the wedge tips of the flat upper surfaces of both sides of the central groove are raised diagonally forward, and a recess is formed in the middle of the tapered lower edge on both sides. A plastic house structural material characterized by being formed so that the tapered lower edges of both sides of the wedge are engaged along the wedge insertion grooves formed at the lower ends of both sides of the connecting metal fitting body. Consolidated money Ingredient 2. A horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate having a U-shaped cross section, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure, which comprises a connecting fitting main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge is tapered on both sides. Formed parallel to the lower edge of the central groove, only the wedge tips of the flat upper surfaces of both sides of the central groove are raised diagonally forward, and a recess is formed in the middle of the tapered lower edge on both sides. The wedges formed at the lower ends of both sides of the connecting metal fitting body are formed by forming slanted rear edges in the recesses and forming retaining protrusions on both side surfaces of the wedges that are tapered overall. Along the insertion groove When inserting the tapered lower edges on both sides of the wedge, the tapered lower edges on both sides of the wedge and the slanted rear edges of the recesses further push up the wedge, and the pull-outs formed on both sides of the wedge. A connecting fitting for a greenhouse material, characterized in that the stopper projections are configured to engage with both sides of the connecting fitting body. 3. A horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate having a U-shaped cross section, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure, which comprises a connecting fitting main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge is tapered on both sides. Formed parallel to the lower edge of the central groove, only the wedge tips of the flat upper surfaces of both sides of the central groove are raised diagonally forward, and a recess is formed in the middle of the tapered lower edge on both sides. The wedges formed at the lower ends of both sides of the connecting metal fitting body are formed by forming slanted rear edges in the recesses and forming retaining protrusions on both side surfaces of the wedges that are tapered overall. Along the insertion groove When inserting the tapered lower edge of both sides of the wedge and connecting the pipes in a cross shape, by driving the wedge, the front portion of the lower edge of the wedge,
The inclined rear edge and the rear portion of the lower edge of the recess further push up the wedge to further tighten the cross-shaped pipe by the flat upper surfaces of both sides of the central groove portion, and the retainers formed on both sides of the wedge. A connecting fitting for a greenhouse structural material, characterized in that projections are configured to engage with both sides of the connecting fitting body. 4. A horseshoe-shaped notch is formed from the lower end at the center of both sides of a thin plate having a U-shaped cross section, and the lower ends of both sides are folded back inward to form a wedge insertion groove. In a connecting fitting for a greenhouse structure, which comprises a connecting metal fitting main body and a wedge having a central groove formed in the longitudinal direction and having both end edges bent to form a tapered lower edge, the central groove of the wedge is tapered on both sides. Formed parallel to the lower edge of the central groove, only the wedge tips of the flat upper surfaces of both sides of the central groove are raised diagonally forward, and a recess is formed in the middle of the tapered lower edge on both sides. The recessed portion is provided with a slanted rear edge, and tapered lower edges on both sides of the wedge are inserted along the wedge insertion grooves formed on the lower end portions of both sides of the connecting fitting body to form a parallel pipe. When concluding By pushing the wedge, the wedge is further pressed by the front portion of the lower edge portion of the wedge, the inclined rear edge of the recess and the rear portion of the lower edge portion, and one of the parallel pipes is clamped by the central groove portion of the wedge. A connecting metal fitting for a greenhouse structure, characterized in that it is configured to be tightened and fixed in parallel, and that the retaining projections formed on both side surfaces of the wedge are locked to both sides of the connecting metal body. 5. A wedge having a central groove portion formed in the longitudinal direction and having both end edges bent to form a tapered lower edge portion, wherein the central groove portion of the wedge is parallel to the tapered lower edge portions on both sides. The flat upper surfaces of both sides of the central groove are flat, and only the wedge tips are raised diagonally forward, forming a recess in the middle of the tapered lower edge on both sides of the wedge, Providing a slanted rear edge in the recess,
Wedges for connecting metal fittings for greenhouses, characterized by forming retaining protrusions on both sides of the wedge.