JP3082254U - Joint - Google Patents

Abstract

(57) Abstract: By eliminating a gap between a pipe and a dovetail groove frame, it is possible to prevent deformation of these pipes and dovetail groove frame when wedge driving becomes excessive. SOLUTION: A holding metal fitting 1 is divided into a portion 1a which is continuous in a forked shape of a frame body and side pieces 1 on both sides of the portion 1a.
b, 1c, a notch 3, a hook 4 protruding from a side opening edge of the notch 3, and a wedge insertion hole 5 formed in a facing portion of a side piece of the frame main body. Side piece 1b,
1c, a dovetail groove frame 8 is inserted into the notch 3 in a direction perpendicular to the pipe 7, and the wedge 2 is driven into the wedge insertion hole 5, whereby the dovetail groove frame is formed by the pipe 7 and the hook 4. In a joint for holding the pipe 8, a bifurcated portion 1a is drawn to form a pipe support 6 having an arcuate surface 6a for supporting the pipe.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a joint suitable for stretching and fixing a vinyl sheet in a simple house such as a greenhouse or a greenhouse.

[0002]

[Prior art]

 In recent years, simple houses such as greenhouses and greenhouses have a transparent vinyl sheet stretched on the roof and side surfaces of any type such as a pipe house, a large steel frame house, and a multi-story house, and the solar heat is passed through the vinyl sheet. It is usually absorbed inside.

However, since the work of stretching the vinyl sheet on the roof and sides of a simple house is extremely troublesome, a fixing device that can easily fix the vinyl sheet has been developed (Utility Model Registration No. 1057415). .

In this fixing device, a vinyl sheet is opposed to a dovetail groove frame for sheet fixing, which is bent and formed in a dovetail shape in cross section, and the vinyl sheet is held by a corrugated locking line from the upper surface of a long supporting frame. It is designed to be pressed and clamped and fixed in a dovetail groove.

[0005] Further, before and after the fixing operation of the vinyl sheet, the dovetail groove frame is fixed to a frame of a greenhouse using a joint, and the entire frame is covered with a vinyl sheet. Is completed.

The joint is formed of a bifurcated frame main body having a U-shaped cross section or a U-shaped cross section, and the frame main body is laterally located in the middle of the vicinity of the bifurcated portion. And a notch for guiding the dovetail frame, and a wedge insertion hole at a position facing each of the bifurcated side pieces.

Therefore, a pipe as a skeleton is inserted into the forked portion of the frame body, a dovetail frame is inserted into the notch in a direction perpendicular to the pipe, and a wedge is driven into the wedge insertion hole. Thus, the dovetail frame can be firmly held between the pipe and the frame body.

[0008]

[Problems to be solved by the invention]

 However, in the conventional joint, the pipe inserted into the U-shaped cross section of the frame body and the dovetail frame inserted into the notch in a direction perpendicular to the pipe only come into line contact with each other. However, a large gap is formed between the pipe and the dovetail groove frame except at the line contact portion. As a result, when the wedge is inserted into the wedge insertion hole more than necessary, the dovetail groove frame is pressed and held against the pipe. In addition, there is a problem in that a large stress acts on one or both of the pipe and the dovetail frame to deform them.

Further, there is a problem that a hook provided at an opening edge of the notch for holding the dovetail frame in the notch is damaged or deformed.

[0010] Further, in a portion where the pipe is curved in an arch shape, the pipe has an elliptical cross section, so that the line contact area is further shortened, and the press-contact holding force is increased, thereby causing play. There was a problem that it became easy to do.

After the dovetail frame is attached to the pipe using the joint, when laying the vinyl sheet as described above, the worker works, for example, by using a portion where the dovetail frame and the pipe intersect as a scaffold. When a worker works, there is a problem that a part of the dovetail frame is rotated, deformed, or damaged due to the existence of the gap.

The present invention solves the above-mentioned problems, and eliminates the gap between the pipe and the dovetail frame, so that when the wedge is driven excessively, these pipes and the like can be used. To obtain a joint that can prevent the deformation of the dovetail groove frame and the rotation of the dovetail groove frame when working with the intersection of the pipe and the dovetail frame as a scaffold, and the pipe and dovetail frame With the goal.

[0013]

[Means for Solving the Problems]

 In order to achieve the above object, a joint according to the invention of claim 1 comprises a clamping metal and a wedge, and the clamping metal includes a bifurcated frame main body having a U-shaped cross section or a U-shaped cross section, and a frame main body. A notch formed in a portion that is bifurcated and side pieces that are continuous on both sides of the portion; a pair of hooks protruding toward the notch side at upper and lower opening edges of the notch; And a wedge insertion hole formed at a position facing each side piece.A pipe is inserted between each side piece of the frame body, and a dovetail groove frame for sheet fixing is inserted into the notch in a direction orthogonal to the pipe. By inserting and inserting a wedge into the wedge insertion hole, a joint that holds the dovetail frame between the pipe and the hook is drawn in a forked portion of the frame body forming the cutout. do it, Characterized that you pipe support part having an arc surface for type bearing is formed.

As a result, a large gap is generated between the outer periphery of the pipe inserted into the U-shaped or U-shaped cross section of the frame body and the dovetail groove frame arranged to cross the pipe. By receiving the stress acting on the pipe due to the excessive driving of the wedge by the pipe support portion, it is possible to prevent the pipe from applying an excessive stress to the dovetail frame.

[0015] A joint according to the invention of claim 2 comprises a clamp and a wedge. The clamp has a bifurcated frame body having a U-shaped cross section or a U-shaped cross section, and a bifurcated shape of the frame body. A notch formed in a portion that is continuous with the portion and side pieces that are continuous on both sides of the portion, a pair of hooks protruding toward the notch side at upper and lower opening edges of the notch, and It consists of a wedge insertion hole formed in the opposing part of each side piece.A pipe is inserted between each side piece of the frame body, and a dovetail groove frame for sheet fixing is inserted into the notch in a direction perpendicular to the pipe. By inserting the wedge into the wedge insertion hole and inserting the wedge into the wedge insertion hole, the above-mentioned notch is formed in the joint that continues in a forked shape of the frame body forming the cutout. Side-to-side direction And a pipe supporting piece that is bent into a shape and supports the inserted pipe outer circumference with an arcuate surface is integrally connected.

[0016] Thus, the bent pipe support piece receives a stress acting on the pipe due to the driving of the wedge, and this stress is prevented from directly acting on the dovetail groove frame. Can be prevented.

The joint according to the third aspect of the present invention comprises a clamp and a wedge. The clamp includes a bifurcated frame body having a U-shaped cross section or a U-shaped cross section, and a bifurcated shape of the frame body. A notch formed in a portion that is continuous with the portion and side pieces that are continuous on both sides of the portion, a pair of hooks protruding toward the notch side at upper and lower opening edges of the notch, and It consists of a wedge insertion hole formed in the opposing part of each side piece.A pipe is inserted between each side piece of the frame body, and a dovetail groove frame for sheet fixing is inserted into the notch in a direction perpendicular to the pipe. By inserting the wedge into the wedge insertion hole and inserting the wedge into the wedge insertion hole, the joint that holds the dovetail frame between the pipe and the hook is symmetrical in the vicinity of the bifurcated portion of the frame body forming the cutout. Placed In addition, a pair of pipe support pieces that are bent in a direction between the respective side pieces and support the inserted pipe outer circumference with an arc surface are integrally connected.

[0018] Accordingly, the pipe support pieces bent so as to face each other receive a stress acting on the pipe due to the driving of the wedge, and this stress is prevented from directly acting on the dovetail frame. The deformation of the groove frame can be prevented.

[0019]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a joint of the present invention, which is composed of a clamp 1 and a wedge 2.

Among these, the holding fixture 1 has a bifurcated frame main body 1A having a U-shaped cross section or a U-shaped cross section as a whole, and a portion 1a continuous in the forked shape and a pair of A notch 3 is formed in each of the side pieces 1b and 1c, and a pair of hooks protrude from each of the opposing edges of the notch 3 in the continuous portion 1a.

A wedge insertion hole 5 is formed in each of the opposing portions of the side pieces 1b and 1c.

These wedge insertion holes 5 have a substantially U-shape, and wedges described later are inserted into these wedge insertion holes 5 in a horizontal direction and driven.

In FIG. 1, the continuous portion 1a is machined in an arc shape, but before machining, it is straight.

The bifurcated portion 1a is divided into upper and lower portions by forming the notch 3 in the holding metal member 1 having a U-shaped cross section, and each of these portions is drawn in an arc shape. To form a pipe support 6 having an arc surface 6a.

The pipe support 6 has an arc diameter substantially equal to the diameter of the pipe to which the clamp is attached.

As shown in FIG. 2, the joint thus configured includes a plurality of pipes 7 serving as a skeleton such as a vinyl housing, and a dovetail groove frame 8 attached to intersect these. Is used to hold the connection.

The vinyl sheet 9 is provided so as to cover the entire pipe 7 and the dovetail groove frame 8, and a part of the vinyl sheet 9 is inserted into the dovetail groove of the dovetail groove frame 8. It is pushed by the strip and is held by the pinching pressure.

FIG. 3 is an exploded perspective view showing an assembly structure of the joint. The assembly procedure will be described with reference to FIG.

First, the dovetail groove frame 8 is inserted horizontally into the notch 3 of the holding fixture 1, and at this time, the upper and lower guide grooves 8 a at the upper and lower ends of the dovetail frame 8 protrude from the opposing edges of the notch 4. Each hook 4 is slidably fitted.

The guide groove 8 a is formed into a shape as shown in the drawing when the dovetail groove is formed by bending the upper and lower portions of the members forming the dovetail frame 8.

Next, the bifurcated side pieces 1b and 1c of the holding member 1 are inserted into the pipes 7 arranged as shown in FIG.

As a result, the dovetail frame 8 is interposed between the hook 4 and the pipe 7 and is supported in a direction crossing the pipe 7.

Next, a wedge 2 having a horizontal M-shaped cross section is inserted from one end into one of the wedge insertion holes 5 formed in the holding member 1 from the tip, and then the wedge insertion hole 5 is strongly inserted with a hammer or the like. I will drive in.

Since the wedge 2 has a tapered surface on the side of the notch 3, the tapered surface strongly pushes the dovetail frame 8 through the pipe 7 toward the hook 4 side by the driving.

For this reason, the dovetail groove frame 8 is firmly held by the pipe 7 via the holding fitting 1.

In this case, the pipe 7 is in line contact with the arcuate surface 6a of the drawn arcuate pipe support 6 over a substantially semicircular portion at the bifurcated portion 1a of the clamp 1 In a state, it is supported without a gap.

For this reason, even if the driving force and the driving amount of the wedge 2 are slightly excessive, it is ensured that the pipe 7 itself and the dovetail frame 8 pressed by the pipe 7 are greatly deformed or damaged. Can be prevented.

At the portion where the pipe 7 bends as shown in FIGS. 2 and 4, the cross-sectional shape becomes elliptical as shown in FIG. Although a slight gap may be generated, the elliptical pipe 7 is closely supported by the pipe support portion 6 over a substantially semicircular circumference due to the slight bending of the pipe 7 itself due to the driving of the wedge 2. Can be.

Accordingly, transmission of excessive stress from the pipe 7 to the dovetail groove frame 8 can be prevented, and deformation of both the pipe 7 and the dovetail groove frame 8 can be prevented.

Furthermore, since the hook 4 is strongly fitted into the guide groove 8 a of the dovetail frame 8 by driving the wedge 2, it is possible to prevent the dovetail frame 8 from dropping off the hook 4.

Next, the dovetail groove frame 8 and the pipe 7 held by the holding fitting 1 as described above are covered with a vinyl sheet 9, and a part thereof is pushed into the dovetail groove 8 b of the dovetail frame 8. Press-fit the corrugated locking line 10 from above.

As a result, the vinyl sheet 9 can be firmly fixed to the dovetail frame 8, and as a result, a greenhouse as shown in FIG. 2 is constructed.

FIGS. 6 and 7 show a configuration in which a dovetail frame 8 is fixed to a straight pipe 7 using the joint shown in FIG. 1. The pipe 7 has a perfect circular ring-shaped cross section. None, and therefore, even when the wedge 2 is pressed into the wedge insertion hole 5, the arc-shaped pipe support portion 16 supports a substantially semicircular portion of the pipe 7, and stress concentrates only on a part of the pipe 7. Can be avoided.

Therefore, the deformation of the pipe 7 and the deformation action of the dovetail frame by the pipe 7 can be reliably avoided.

FIGS. 8 and 9 show another embodiment of the holding member 1 according to the present invention. The holding member 1 has a U-shaped cross section and is divided into two parts by a notch 3. Instead of performing the above-described drawing, pipe supporting pieces 12 each having an arcuate surface 11 as an arc-shaped support portion at each end 1a in a bifurcated shape are respectively attached in the vertical direction. It is connected to

As shown in FIG. 9, the pipe supporting piece 12 is provided at the same time as the formation of the holding metal fitting 1, and is arranged in the direction between the forked side pieces 1 b and 1 c (in the direction of the arrow) around the base shown by the dotted line. Then, it is bent substantially horizontally.

For this reason, each of the arc surfaces 11 faces in a direction of closely supporting a substantially semicircular portion of the pipe 7 inserted between the side pieces 1b and 1c.

Therefore, the dovetail groove frame 8 is inserted into the notch 3 as described above, and then the pipe 7 is inserted between the side pieces 1 b and 1 c of the forked portion so as to cross the dovetail frame 8. When the wedge 2 is inserted into the wedge insertion hole 5 and driven into the wedge, the substantially semicircular portion of the pipe 7 is stably supported on the arcuate surface 11, so that the pipe 7 is more than necessary. 8 is not pressurized.

Accordingly, deformation due to stress concentration on a part of the pipe, and deformation and breakage of the dovetail frame 8 can be prevented.

FIG. 10 and FIG. 11 show still another embodiment of the holding metal fitting 1. In the holding metal fitting 1 having a U-shaped cross section, side pieces 1 b, 1 c holding a bifurcated portion 1 a are formed. In addition, pipe support pieces 14 each having an arc surface 13 as an arc-shaped support portion at an end edge thereof are vertically connected to each other.

This pipe support piece 14 is also provided at the same time when the holding metal fitting 1 is formed, and is directed in the direction between the side pieces 1 b and 1 c (in the direction of the arrow) so as to face each other around the base shown by the dotted line in FIG. As shown, it is folded substantially horizontally. For this reason, each arc surface 13 closely supports approximately a quarter of the circumference of the pipe 7 inserted between the side pieces 1b and 1c as described above, and a total of approximately a half circumference. Turn in the direction.

Therefore, when the dovetail frame 8 is inserted into the notch 3, the pipe 7 is inserted as described above, and the wedge 2 is driven into the wedge insertion hole 5, Thus, the deformation of the pipe 7 due to the concentration of stress and the deformation and breakage of the dovetail frame 8 due to the pressure from the pipe 7 can be prevented.

As shown in the above embodiments, the pipe 7 is supported by the pipe supporting portion 6 and the pipe supporting pieces 12 and 14 in the holding metal fitting 1, so that the pipe 7 is connected to the pipe 7 in a bifurcated manner. There is no unnecessary gap between the part 1a and the part 1a.

Therefore, the pipe 7 is stably held in the holding fixture 1 by the wedge 2, and the load of the worker's foot temporarily concentrates on the one guide groove 8 a side of the dovetail groove frame 8 when the vinyl sheet 9 is laid. Therefore, even if a downward or rotational force is applied, the dovetail frame 8 is stably supported by the pipe 7, so that the dovetail frame 8 itself and the hook Can be prevented beforehand.

[0055]

[Effect of the invention]

 As described above, according to the present invention, the pipe body having the arcuate surface of the pipe support is provided by drawing the bifurcated portion of the frame body forming the notch, thereby providing the frame body. A large gap can be prevented from being formed between the outer periphery of the pipe inserted into the U-shaped or U-shaped cross section of the pipe and the dovetail frame arranged so as to intersect the pipe, and the wedge having an excessively large By receiving the stress acting on the pipe by the driving by the pipe support portion, it is possible to prevent the excessive stress from acting on the dovetail frame. Thereby, deformation and breakage of the pipe and the dovetail frame can be prevented.

Further, a pipe supporting piece that is bent in a direction between the respective side pieces and supports the inserted pipe outer periphery is integrally provided at a bifurcated portion of the frame body forming the cutout. As a result, the bent pipe support piece receives a stress acting on the pipe due to the driving of the wedge, and this stress can be prevented from directly acting on the dovetail frame, whereby the deformation of the dovetail frame can be prevented.

Further, a pair of symmetrically arranged portions near the bifurcated portion of the frame body forming the cutout and bent in the direction between the side pieces to support the inserted pipe outer periphery with an arcuate surface. Since the pipe support pieces are integrally connected, the pipe support pieces bent so as to face each other receive the stress acting on the pipe by the driving of the wedge, and this stress acts directly on the dovetail frame. This prevents deformation of the dovetail frame.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a greenhouse showing an installation position of a joint shown in FIG. 1;

FIG. 3 is an exploded perspective view showing an assembly structure of the joint shown in FIG. 1;

FIG. 4 is a longitudinal sectional view of a main part showing a structure for attaching a joint to a pipe in FIG. 1;

5 is a horizontal sectional view of the mounting structure shown in FIG.

FIG. 6 is a longitudinal sectional view of a main part showing another attachment structure of the joint in FIG. 1 to a pipe.

FIG. 7 is a horizontal sectional view of the mounting structure shown in FIG. 6;

FIG. 8 is a perspective view showing another example of the holding bracket according to the present invention.

FIG. 9 is a perspective view showing a state in which a pipe supporting piece of the holding member shown in FIG. 8 is bent.

FIG. 10 is a perspective view showing another example of the holding bracket in the present invention.

FIG. 11 is a perspective view showing a state in which a pipe support piece of the holding bracket shown in FIG. 10 is bent.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamping bracket 1A Frame main body 1a Bifurcated part 1b, 1c Side piece 2 Wedge 3 Notch 4 Hook 5 Wedge insertion hole 6 Pipe support 6a, 11, 13 Arc surface 7 Pipe 8 Dove groove frame 12, 14 Pipe support Piece

Claims (3)

[Utility model registration claims] Claims: 1. A clamp comprising a clamp and a wedge.
A bifurcated frame main body having a U-shaped cross section or a U-shaped cross section, a notch formed in a bifurcated portion of the frame main body and side pieces continuous on both sides of this portion, An opening edge comprises a pair of hooks protruding toward the notch side and a wedge insertion hole formed at a portion of the frame main body opposite to each side piece, and a pipe is inserted between each side piece of the frame main body. Insert, insert a dovetail groove frame for sheet fixing in a direction perpendicular to the pipe into the notch, and drive the wedge into the wedge insertion hole, so that the pipe and the hook pinch the dovetail frame, A joint, wherein a pipe support portion having an arcuate surface for pipe support is formed by drawing a bifurcated portion of the frame main body forming the cutout. 2. A clamping device comprising a holding member and a wedge, wherein the holding member includes:
A bifurcated frame main body having a U-shaped cross section or a U-shaped cross section, a notch formed in a bifurcated portion of the frame main body and side pieces continuous on both sides of this portion, An opening edge comprises a pair of hooks protruding toward the notch side and a wedge insertion hole formed at a portion of the frame main body opposite to each side piece, and a pipe is inserted between each side piece of the frame main body. Insert, insert a dovetail groove frame for sheet fixing in a direction perpendicular to the pipe into the notch, and drive the wedge into the wedge insertion hole, so that the pipe and the hook pinch the dovetail frame, A pipe support piece that is bent in the direction between the respective side pieces and supports the inserted pipe outer periphery with an arcuate surface is integrally provided at a bifurcated portion of the frame body forming the cutout. Be done Joint according to claim 1, wherein the door. 3. A clamp comprising a clamp and a wedge.
A bifurcated frame main body having a U-shaped cross section or a U-shaped cross section, a notch formed in a bifurcated portion of the frame main body and side pieces continuous on both sides of this portion, An opening edge comprises a pair of hooks protruding toward the notch side and a wedge insertion hole formed at a portion of the frame main body opposite to each side piece, and a pipe is inserted between each side piece of the frame main body. Insert, insert a dovetail groove frame for sheet fixing in a direction perpendicular to the pipe into the notch, and drive the wedge into the wedge insertion hole, so that the pipe and the hook pinch the dovetail frame, A pair of pipe support pieces that are symmetrically arranged and bent in the direction between the respective side pieces near the bifurcated portion of the frame main body forming the notch, and support the inserted pipe outer circumference with an arc surface. But Joint according to claim 1, characterized by being provided continuously to the body.