JP3072489U - Wedge type coupling for greenhouse - Google Patents

Abstract

(57) [Problem] To provide a wedge-type connecting tool for connecting a frame material of a greenhouse and a sheet stopper to a wedge as an intermediary. SOLUTION: A connecting member main body has a U-shape crossing a frame material of a greenhouse in a transverse direction, and a notch shape in which a sheet stopper and a wedge are passed through the end portions of both side walls in a direction orthogonal to the frame material. An opening is formed, and a claw for holding the sheet stopper is formed at an edge of the opening.
The center of the back of the U-shaped connecting member main body and the center of the opening are deviated by a certain dimension.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention belongs to the technical field of a wedge-type connecting device that connects a frame material of a greenhouse and a sheet stopper using a wedge as an intermediary.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 6A, an example of a wedge-type connecting device that connects a frame material of a greenhouse and a sheet stopper using a wedge as an intermediary is that a connecting device body 1 crosses a frame material 2 of a vinyl house. A U-shape (including the U-shape, the same applies hereinafter) that straddles the directions, and is large enough to pass the sheet stopper 3 and the wedge 4 in the direction orthogonal to the framing member 2 at the center of the tip of both side walls. An opening 5 having a cutout shape is formed, and a claw portion 6 for holding the outer surfaces of both side walls of the sheet stopper 3 is formed at the edge of the opening 5.

It should be noted that the center of the back portion 1a (center of force) of the U-shaped connecting member body 1 and the center of the opening 5 (center of wedge force) are on the line aa in FIG. 6A. And are almost common.

Accordingly, the fixing force (wedge fixing force) when the sheet stopper 3 is fixed by driving the wedge 4 includes a force F ₁ for pressing the wedge 4 on one side of the frame member 2 and a back portion of the connecting member body 1. 1a is configured to maintain a balance between the force F ₂ to press the opposite sides of the frame member 2.

[0005]

[Problems to be solved by the present invention]

Therefore, when the sheet 8 is fixed to the fixing groove of the sheet stopper 3 with the elastic stopper line 7 in the use state, the sheet 8 is strongly pulled by the tension in the direction of the arrow T by the wind pressure or the levitation force at the time of strong wind. If the tension T exceeds the frictional force with the frame member 2 caused by F ₁ and F ₂ , there is a problem that the mounting position of the wedge-type connecting member shifts and the tension of the seat 8 is loosened. Therefore, the variation of the driving amount of the wedge 4 in the construction of the greenhouse, in other words, the variation of the fixing forces F ₁ and F ₂ corresponding to the wedge fixing force is a serious problem.

[0006] In particular, polyolefin-based sheets, which have been widely used recently, are vulnerable to "scratching" and are not suitable for holding down with a so-called house band. It is conditioned. In this connection, it is considered that it is even fatal that the mounting position of the connecting member is shifted, and a solution is urgently needed.

[0007] Further, when constructing a greenhouse, it is pointed out that workers often use a connecting tool instead of a scaffold, and the mounting position of the connecting tool shifts due to the weight thereof.

[0008] Similarly, when constructing a greenhouse, as an efficient setup of the construction work, the connecting member main body is preliminarily arranged along the mounting position of the sheet stopper 3 (height in the horizontal direction). Temporarily fix to 2 in advance. However, the conventional fasteners have a weak (or no equivalent) temporary fixing action, and fall due to slight external force or the vibration of the framing material. .

In addition, as a connection procedure of the sheet stopper 3, an attachment operation using a connector is often performed from one end of the sheet stopper 3 to the other or from both ends to the center. In such a case, it is often the case that many connecting operations must be performed under the condition that the position and the posture of the sheet stopper 3 are already fixed by other connecting members. However, in order to insert the claw portion 6 of the rim into the opening 4 of the connecting member main body 1 over which the frame member 2 is straddled, the sheet stopper 3 is suitably twisted and the connecting member main body 1 is twisted. It is necessary to combine well with the operation of rotating the seat (for example, see FIG. 4). However, in the configuration of the conventional connecting member main body 1, the back portion 1a sticks to the framing member 2 and the rotation posture is limited, so that the seat is not easily formed. It is also strongly pointed out that it is difficult to guide the stopper 3 into the opening 4 by digging into the claw 6 on the edge thereof, which is troublesome, and that the work efficiency is poor.

Therefore, an object of the present invention is to generate the above-described acting forces F ₁ and F _{2 which} are caused by the force generated on both sides of the framing material due to the wedge fastening force, which is effective for the attachment state of the connecting tool. By taking advantage of the above-mentioned effectiveness and using it positively, there is a concern that the magnitude of the tension generated in the seat or the worker will be able to withstand the use as a substitute for scaffolding and the mounting position will shift. Accordingly, the present invention is to provide a wedge-type connecting tool suitable for use of a polyolefin-based sheet, which does not cause any problem due to a variation in the amount of driving the wedge (variation in a wedging force).

[0011] A second object of the present invention is to provide a wedge-type connector having a configuration that has an excellent temporary fixing effect on a frame member and has excellent operability for inserting a sheet stopper into an opening.

[0012]

[Means for Solving the Problems]

 As a means for solving the problems of the prior art, a wedge-type connecting device for a greenhouse according to the invention of claim 1 is a wedge-type connecting device for connecting a frame material of a greenhouse and a sheet stopper with a wedge as an intermediate. In the connecting device, the connecting device body has a U-shape crossing the frame material of the greenhouse in a transverse direction, and a cut-out for passing a sheet stopper and a wedge through the ends of both side walls in a direction perpendicular to the frame material. A notch-shaped opening is formed, and a claw portion for holding a sheet stopper is formed at an edge of the opening, and a center of a back portion of the U-shaped coupler main body and the opening are formed. It is characterized by a shape deviated from the center by a certain dimension.

According to a second aspect of the present invention, there is provided the wedge-type connecting device for a greenhouse according to the first aspect, wherein the center of the back portion of the U-shaped connecting device main body and the center of the opening are shifted. The amount is set by cutting the back of the connecting body so that the sheet stopper is perpendicular to the framework of the greenhouse. And

According to a third aspect of the present invention, there is provided a wedge-type connecting device for a greenhouse according to the first or second aspect, wherein a frame member of the greenhouse is sandwiched or sandwiched on the back or the side wall of the connecting device main body. It is characterized in that a temporary fixing portion having a retaining action is formed.

According to a fourth aspect of the present invention, there is provided a wedge-type connecting device for a greenhouse according to the first or second aspect, wherein a side wall of the connecting member body has a shape for elastically sandwiching a frame material of the greenhouse. It is characterized by that.

[0016]

[Embodiments and Examples of the Invention]

 1 to 4 show an embodiment of a wedge-type connecting device for a greenhouse according to the invention of claim 1.

The connecting member body 10 of the wedge-type connecting member has a U-shape that straddles the frame member 2 of the greenhouse in the transverse direction, and has sheet stoppers 3 and wedges 4 at the distal ends of both side walls 12, 12. The opening 15 is formed in a substantially rectangular shape having a notch shape with a shape and a size suitable for passing the material in a direction orthogonal to the frame material 2. Further, at the edge of the opening 15, claw portions 16, 16 for holding the outer surfaces of both side walls of the sheet stopper 3 are formed. If the cross section of the framework 2 is circular, the connector body 10 necessarily has a U-shape.

As shown in FIG. 2, the side wall 12 of the connector main body 10 having the U-shape forms oblique sides 13, 13 parallel to both edges near the back 11 of the side walls 12, 12. Are formed in a diamond shape as a whole. The back portion 11 has a shape in which a range W (see FIG. 1) of about 20 mm from the end of the oblique side portion 13 on the front side is cut in parallel.

Therefore, as is apparent from FIG. 2 showing the use state of the connecting member main body 10, the center of the wedge fixing force F ₁ of the wedge 4 inserted into the opening 15 (substantially equal to the center of the opening 15). match. a), the back 11 substantially coincides with the center of the wedging force center of force F ₂ to press the opposite sides of the frame member 2 as a reaction force of F ₁ (back 11.) and only certain dimensions e It has a deviated shape. Although the magnitude of the deviation amount e is freely designed, basically, the seating member 3 arranged orthogonally to the frame member 2 of the greenhouse in the connecting member body 10 as shown in FIG. A significant design factor is to cut off the back part of the area w necessary for guiding the inside of the claw part 16 of the opening part 15 (the invention according to claim 2).

The back portion 11 from which the range W in FIG. 1 has been cut out has a length corresponding to the range W when the connector body 10 guides the sheet stopper 3 into the opening 15 across the frame member 2 as shown in FIG. A large rotation angle until it comes into contact with the frame member 2 can be taken, and the work of inviting the sheet stopper 3 is easy. That is, considering only the invitation work, the larger the range W, the better.

Moreover, since the center of the wedge fixing force F _{1 and} the center of the pressing force F ₂ as the reaction force are deviated from each other, the sheet fixed by the fixing line 7 as shown in FIG. When the tension T due to the wind pressure or the levitation force acts on the motor 8, the counterclockwise rotation force caused by the displacement amount e is amplified, that is, the connecting member main body 10 is prying. The frictional force caused by the forces F ₁ and F ₂ increases, and an effect of preventing the displacement of the connecting tool is brought about. In short, it is effective.

Therefore, in a portion where the wind pressure and the levitation force on the sheet 8 are particularly large due to the structure of the greenhouse, the use of the connecting tool in the mode shown in FIG. 2 is effective in preventing the displacement. Further, it is very suitable for constructing a greenhouse using a polyolefin-based sheet in which a house band for holding the sheet cannot be used.

On both side walls 12 of the connecting member main body 10, a temporary fixing portion 14 that sandwiches and stops both side surfaces of the framed material 2 when straddling the framed material 2 of the greenhouse is punched inward. It is formed as a processed projection (the invention according to claim 3).

Therefore, as shown in FIG. 3, even if the frame 2 has an open cross-sectional shape having the slit 2 a and both sides are easily bent toward the slit 2 a, the temporary fixing effect by the temporary fixing portion 14 can be obtained. Demonstrate fully. When the frame member 2 is a metal pipe having a circular cross section, the connecting member body is inevitably U-shaped, so that the temporary fixing portion 14 slightly exceeds 180 ° in the cross section of the pipe. By providing it at the position, the same function and effect can be obtained. The temporary fixing portion 14 is not limited to the protrusion structure, and may be implemented by a structure in which a part of the back portion 11 or the side wall 12 of the connecting member main body 10 is raised in a cantilever spring type. Further, the position where the temporary fixing portion 14 is provided is not only a position in a range where the temporary fixing portion 14 is in contact with the side surface of the frame member 2 as shown in FIG. 1, but also, as shown in FIGS. It is also practiced to provide a cantilever spring type temporary fixing portion 14 ′ at a position where the retaining action is exactly exerted when completely straddling.

Further, a small U-shaped bent portion is formed on the back portion 11 of the connecting member main body 10 having a U-shape or a U-shape so that both side walls exhibit inward spring characteristics. Alternatively, it is also possible to implement the present invention in a shape in which both side walls are slightly smaller than the outer diameter of the frame material 2 so that the frame material of the greenhouse is elastically sandwiched between them.

Since the connecting member main body 10 is provided with the temporary fixing portion 14 as described above, it is extremely convenient to temporarily fix the temporary fixing portion 14 in the vicinity of the position where the sheet fixing member is attached to the frame member 2. Work efficiency can be improved.

Next, FIG. 5 shows a usage example in which the connector main body 10 having the same configuration as described above is used in a mode opposite to that of FIG. This is a mode of use that can withstand the weight and other loads P of the person even when the worker puts his foot on the connecting device instead of the scaffold in the construction or maintenance of the greenhouse (replacement of the sheet, etc.). It is shown that.

That is, as described above, the center of the wedge fixing force F _{1 and} the center of the force F ₂ that pushes the frame material 2 as the reaction force are displaced by e. Moreover, since the center of the wedging force F ₁ is a usage mode positioned below the center of the force F ₂ pushing the framework member 2, the load P acts as in Figure 5, anti due to deviation amount e This results in amplifying the clockwise rotational force. In other words, the connecting member main body 10 is pryed, and the frictional force resulting from the forces F ₁ and F ₂ increases to provide an effect of preventing displacement. In short, it is effective.

Therefore, in a part of the structure of the greenhouse where the worker often puts his foot on the connecting tool instead of the scaffold, when used in the mode of use shown in FIG. This is convenient because it does not hinder the structure of the greenhouse.

[0030]

[Effects of the present invention]

The wedge-type connecting device according to the invention described in claims 1 to 4 has a configuration in which the forces (the above-described acting forces F ₁ and F ₂ ) generated on both surfaces of the framing material due to the wedge fixing force are generated in a deviated manner. Properly used in the installation state of the connecting device, and by actively applying and utilizing the effect, for example, the magnitude of the tension generated in the seat, or sufficient durability for workers to use it as a scaffold There is no need to worry about the mounting position shifting. Therefore, variations in the amount of wedges driven (variations in the wedging force) do not cause a problem, and the quality of the greenhouse construction is constant, workability is improved, and the sheet is pressed down. It is suitable for building greenhouses that use system sheets.

Further, the wedge-type connecting device is excellent in the effect of temporarily fixing the frame material, and is excellent in the operability of inserting the sheet stopping material into the opening, so that the workability of the greenhouse construction is also improved. It makes a big contribution.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a connector main body according to the present invention.

FIG. 2 is a cross-sectional view showing a use state of a wedge-type connecting tool by the connecting tool body.

FIG. 3 is a perspective view showing a use state of a wedge-type connecting tool by the connecting tool body.

FIG. 4 is a cross-sectional view showing a guide for guiding the connecting member main body and the sheet stopper.

FIG. 5 is a cross-sectional view illustrating a wedge-type connecting device according to the present invention in different use states.

6A is a cross-sectional view showing a different use state of the conventional wedge-type connecting device, and FIG. 6B is a cross-sectional view taken along line bb of FIG. 6A.

[Explanation of symbols]

 Reference Signs List 2 Framed material 3 Seat stopper 10 Connector body 12 Side wall 4 Wedge 15 Opening 16 Claw 11 Back 14 Temporary fixing 14 'Temporary fixing

Claims (4)

[Utility model registration claims] 1. A wedge-type connecting tool for connecting a frame material of a greenhouse and a sheet stopper to a wedge as an intermediary, wherein the connecting tool body has a U-shape crossing the frame material of the greenhouse in a transverse direction. A notch-shaped opening is formed at the end of each side wall to allow the sheet stopper and the wedge to pass in a direction orthogonal to the frame member, and a claw portion for holding the sheet stopper is formed at the edge of the opening. A wedge-type connector for a greenhouse, wherein the center of the back of the U-shaped connector main body and the center of the opening are deviated by a certain dimension. . 2. The amount of deviation between the center of the back portion of the U-shaped connecting member main body and the center of the opening is determined by using a sheet stopper member arranged in the connecting member main body at right angles to the frame material of the greenhouse. The back portion is set to a size small enough to be guided into the inside of the claw portion by cutting the back portion.
A wedge-type connecting device for a greenhouse described in 1. 3. The connecting member main body according to claim 1, wherein a temporary fixing portion is provided on a back or side wall of the connecting member main body so as to sandwich a frame material of a greenhouse or to prevent the frame from coming off. Wedge-type connecting device for greenhouses. 4. A wedge-type connecting tool for a greenhouse according to claim 1, wherein the side wall of the connecting tool body has a shape in which a frame material of a greenhouse is elastically sandwiched.