JPH08128194A - Pipe connection clamp metal fixture - Google Patents

Abstract

PURPOSE: To provide a clamp metal fixture combined and connected and very excellent in strength while using orthogonal clamp type as free clamp type. CONSTITUTION: In clamp metal fixtures, clamp metal fixture main bodies 1a and 1b are connected back to back turnably, a stopper 11 for preventing the turning of the clamp metal fixture main bodies 1a and 1b is turnably mounted to one 1a of them. An interlocking section interlocked with the stopper 11 is provided to the other 1b, and when scaffolding pipes P are clamped with the clamp metal fixtures and are fastened, the stopper 11 is slightly moved with the fastening of them, and the clamp metal fixtures are completely interlocked and are formed so that interlocking release between the stopper 11 and interlocking section can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe material which is very excellent in strength when the scaffolding at a construction site is framed by the pipe material by securely assembling and connecting the pipe materials at an appropriate angle. It relates to clamp fittings.

[0002]

2. Description of the Related Art Conventionally, a clamp member for connecting pipes of this type, which connects pipes at an appropriate angle, has been disclosed in Japanese Patent Laid-Open No. 6-242242.
There is a clamp metal fitting assembly for connecting pipe materials provided in Japanese Patent Publication No. 108637.

This clamp metal fitting assembly is surrounded by a base body and a lid body having one end swingably connected to the base body for clamping the pipe material, and the base body is provided at the other end of the lid body. Clamp fitting that engages the tip of the fastening screw that is swingably attached to the nut and forms a nut receiving portion to tighten with the nut, surrounds the pipe material with the base body and the lid, and clamps by tightening the fastening screw and the nut The main body is formed and two of these clamp metal fitting bodies are connected to each other with their bases back to back so that they can rotate freely. A stopper is provided on the base body so as to be swingably supported by the swing mounting portion of the fastening screw to prevent rotation of both clamp metal fitting bodies at an appropriate angle, and a locking piece is projected on this stopper. Let me set An engaging notch that engages with the locking piece of the stopper is formed on the base body of the other clamp metal body of the two clamp metal bodies, and the locking piece is engaged by swinging the stopper. By engaging with the notch, rotation of both clamp metal fittings is blocked at an appropriate angle,
It is formed so that it can be rotated by releasing its engagement,
As a result, the orthogonal type in which the pipes are clamped at right angles to each other and the free type in which the pipes are clamped in an intersecting state at an appropriate angle are also used.

[0004]

In such a pipe member connecting clamp fitting assembly, both the orthogonal type which clamps the pipe members at right angles and the free type which clamps at a proper angle are intersected. Since it is not necessary to prepare both types of clamp fittings, it is easy to use and excellent in that case.In that case, for example, in order to have a function of orthogonal type, the engagement of the stopper locking piece and the engagement notch is required. If the tubing is clamped in this condition, it must be prevented from disengaging. However, in the case of this pipe material connecting clamp fitting assembly, as a means for preventing the release, the stopper piece of the stopper contacts the peripheral surface of the pipe material while the pipe material is clamped on both clamp fitting bodies. The structure is designed so that the stopper cannot be rocked and the engagement is prevented from being disengaged. Therefore, in order to make the structure in which the stopper locking piece comes into contact with the pipe material to prevent the stopper itself from swinging, the pipe material is clamped. It is necessary to ensure that the stopper's locking piece is in contact with the pipe material accurately while
The accuracy of the stopper shape must be extremely good, and in addition, the stopper mounting accuracy must be good. As a result, there is a problem that the overall processing cost increases.

In view of the above-mentioned problems, the present invention has a scaffolding at a construction site while using both an orthogonal type for clamping pipes at right angles and a free type for clamping in a state where they intersect at an appropriate angle. When forming a frame with pipe materials, whether they are clamped at right angles or when they are clamped in a state intersecting at an appropriate angle, the locked state is secured in each state and the pipe materials The object of the present invention is to provide a clamp fitting for connecting pipe materials, which is surely assembled and connected at an appropriate angle, is extremely excellent in strength, and suppresses cost increase.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a tube body is clamped by a base body and a lid body having one end swingably connected to the base body, and is fastened by a fastening screw and a nut. To form a clamp metal fitting body that is to be clamped with, and connect the two bases to each other so that they can rotate freely. On the base of the clamp metal fittings body, a stopper is provided that is pivotally supported by the rocking attachment part of the fastening screw to block the rotation of both clamp metal fitting bodies at an appropriate angle. The base of the other clamp metal fitting body of the metal fitting body is provided with an engaging portion that engages with the stopper to prevent rotation of both clamp metal fitting bodies at an appropriate angle, and engages with the stopper. A disengagement preventing one means such as an engaging protrusion for preventing the disengagement is provided, and the other of the disengagement preventing other means such as an engaging concave portion engaging with the disengagement preventing one means is provided on the base body of the other clamp fitting body. Means is provided, the swing shaft of the fastening screw and the pivot shaft of the stopper are fixed integrally or identically, and these shafts are fastened with the nut when fastening one clamp metal fitting body with the fastening screw and the nut. The screw is formed so as to be slightly movable in the pulling direction, and the disengagement preventing one means and the disengagement preventing other means are completely engaged at the position where the shaft is moved to the pulled state. This solves the above-mentioned problems.

Further, as one aspect thereof, an engaging piece having one means for preventing engagement release is projected on the stopper, and an engaging notch is provided on the base body of the other clamp metal fitting body so that they engage with each other. The problem described above is solved by forming the clamp metal fitting bodies so as to prevent the rotation of the clamp metal fitting bodies at an appropriate angle.

Further, as another embodiment, the stopper is formed of a metal material in a substantially frame shape, and the side surface of the stopper is brought into surface contact with the side surface of the base body of the other clamp metal fitting main body so that the two clamp metal fitting main bodies are brought into contact with each other. The problem described above is solved by forming it so as to prevent the rotation at an appropriate angle.

On the other hand, the stopper is also arranged on the base body of the other clamp metal fitting body, and the engaging portion with which the stopper engages is provided on the base body of the one clamp metal fitting body, and this stopper prevents the disengagement. One engaging-disengagement preventing means such as an engaging protrusion is provided, and the other one of the engaging-disengagement preventing means such as an engaging recess engaging with the engaging-disengagement preventing one means is also provided on the base body of one clamp fitting body. , Like the stopper of one clamp metal fitting body, the disengagement blocking one means and the disengagement blocking other means are completely engaged at the position where the shaft pivotally supporting the stopper is moved to the pulled state. By forming in this way, the above-mentioned problems can be solved more reliably.

[0010]

The clamp member for connecting a pipe material according to the present invention is surrounded by a base body and a lid body having one end swingably connected to the base body for clamping the pipe material, and is tightened by a fastening screw and a nut. Clamp metal body to be clamped is formed, and the two clamp metal bodies are connected to each other so that their bases are back to back so that they can rotate freely. The tubing thus prepared is in a state capable of handling both cases, whether it is clamped orthogonally or when it is clamped in a state of intersecting at an appropriate angle.

Therefore, one of the two clamp metal fitting bodies is pivotally supported on the base body of one clamp metal fitting body by the rocking mounting portion of the fastening screw so as to appropriately rotate the two clamp metal fitting bodies. A stopper that prevents the two clamp metal fittings is arranged at an appropriate angle, and the base of the other clamp metal fitting body of the two clamp metal fitting bodies engages with the stopper to rotate the clamp metal fitting bodies at an appropriate angle. Since the engaging portion for blocking is provided, the rotation of both clamp metal fitting bodies is prevented by the engagement of the stopper and the engaging portion, and the angle between both clamp metal fitting bodies is set in this state. That is, if this angle is set to the orthogonal state,
A so-called orthogonal clamp is possible.

Then, when the pipe members are clamped by tightening the clamp metal fitting body with a fastening screw,
The stopper is provided with a disengagement preventing one means such as an engaging protrusion for preventing disengagement, and the base body of the other clamp fitting body is engaged with the disengagement preventing one means. The other means for preventing engagement release is provided, and the swing shaft of the fastening screw and the pivot shaft of the stopper are fixedly integrated or made the same, and one of the clamp metal fitting bodies is fastened by the fastening screw and the nut. When tightening, the nut is slightly movable in the direction in which the tightening screw is pulled, and at the position where the shaft has moved to the pulled state, the engagement release blocking one means and the engagement release blocking other means are completely engaged. Since it is formed so that the engagement release prevention one means and the engagement release prevention other means engage with each other in this state to perform the engagement release prevention function, and the stopper and the engagement portion are particularly precise. Without having to make good Unless the disengagement is prevented and the engaged state is securely held, and the engagement screw and the nut are loosened to release the engagement between the disengagement preventing one means and the disengagement preventing other means, the clamp metal fitting body The rotation between them is surely prevented and never comes off.

In particular, as one aspect of its specific structure, an engaging piece having one means for preventing engagement release is projected from the stopper, and an engaging notch is provided in the base body of the other clamp metal fitting body to engage these. Since it is formed so as to prevent the rotation of both clamp metal fitting bodies at an appropriate angle by engaging, the stopper engages the engaging notch with the engagement notch and tightens the fastening screw so that the stopper engages between the clamp body parts. Since the clamp metal fittings are moved in a direction in which the tightening is strengthened, the clamp metal fitting bodies are reliably prevented from rotating, and are not disengaged unless the fastening screw and the nut are loosened.

As another aspect, the stopper is formed of a metal material in a substantially frame shape, and the side surface of the stopper is brought into surface contact with the side surface of the base body of the other clamp metal fitting body to bring the two clamp metal fitting bodies into contact with each other. Since it is formed to prevent the rotation at an appropriate angle, the rotation of both clamp metal fitting bodies can be prevented by simply contacting the side surface of the stopper with the side surface of the base body of the other clamp metal fitting body. ,
Since it is formed by bending a metal plate material into a substantially frame shape, it is extremely strong in terms of strength, and when the fastening screw is tightened, the stopper moves in a direction that strengthens the engagement between both clamp bodies. The rotation of the metal fitting bodies is reliably prevented, and the metal fitting bodies will not come off unless the fastening screws are loosened.

On the other hand, the stopper is also arranged on the base body of the other clamp metal fitting body, and the engaging portion with which the stopper engages is provided on the base body of the one clamp metal fitting body, and this stopper prevents the disengagement. One engaging-disengagement preventing means such as an engaging protrusion is provided, and the other one of the engaging-disengagement preventing means such as an engaging recess engaging with the engaging-disengagement preventing one means is also provided on the base body of one clamp fitting body. , Like the stopper of one clamp metal fitting body, the disengagement blocking one means and the disengagement blocking other means are completely engaged at the position where the shaft pivotally supporting the stopper is moved to the pulled state. With this configuration, the stopper becomes a double stopper, and unless the fastening screws and nuts of both clamp metal fitting bodies are loosened to release the engagement between the engagement release prevention one means and the engagement release prevention other means. Pump fitting body rotation of each other does not come off is more reliably prevented.

In all of these modes, if the stopper is released, it functions as a so-called universal clamp metal fitting.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

That is, reference numeral 1 shown in the drawing is a main body of a clamp fitting, which is surrounded by a base body 2 and a lid body 3 whose one end is swingably connected to the base body 2 in order to clamp the pipe material P. At the other end of the lid body 3, there is formed a nut receiving portion 6 for engaging the tip end portion of a fastening screw 4 which is swingably attached to the base body 2 and tightening it with a nut 5.
The pipe material P is surrounded by the base body 2 and the lid body 3 and clamped by tightening with the fastening screw 4 and the nut 5.

Then, the two clamp metal fitting bodies 1 thus formed are connected to each other so that their base bodies 2 are back-to-back, and are rotatable with each other by the rotating portion 7.

Further, the two clamp metal fitting bodies 1a, 1
One of the clamp metal fitting bodies 1a of the base body 2a is pivotally supported by a rocking mounting shaft 4a, which serves as a rocking shaft of the fastening screw 4, so that the clamp metal fitting bodies 1a and 1b rotate together. A stopper 11 is arranged to prevent movement at an appropriate angle. Here, the angle is, for example, an angle at which the two clamp metal fitting bodies 1a and 1b are orthogonal to each other. And
Engagement with the base body 2b of the other clamp metal fitting body 1b as an engaging portion that engages with the engaging piece 11b of the stopper 11 to prevent the rotation of both clamp metal fitting bodies 1a, 1b at an appropriate angle. A cutout 12 is provided.

The engaging piece 11b of the stopper 11 includes:
An engagement protrusion 11a is provided as an engagement release preventing means for preventing the engagement piece 11b and the engagement notch 12 from being disengaged, and the engagement provided on the base body 2b of the other clamp fitting body 1b. In the notch 12, the engagement concave portion as the other means for preventing disengagement that engages with the engagement protrusion 11a or the side edge of the member forming the base body 2b of the clamp fitting body 1b as shown in FIG. For engaging the notch 1 on the raised side piece 2d
2 is provided with an engagement release blocking portion 12a which allows the engagement projection 11a to be caught by the side piece 2c in a state where the stopper 11 is engaged.

On the other hand, the swing mounting shaft 4a of the fastening screw 4
Is attached to the base body 2a of the one clamp metal body 1a, and at that time, the side edges of the members forming the base body 2a are erected between the side pieces 2c and 2d which are erected on both sides to secure the strength. In this axial mounting state, both ends of the swing mounting shaft 4a are inserted into the long holes 2e, 2e provided in the side pieces 2c, 2d, so that the swing mounting shaft 4a moves in the longitudinal direction of the long holes 2e, 2e. It is structured so that it can be moved. And
As shown in FIG. 5 (B) or FIG. 5 (C), the longitudinal direction of the long holes 2e, 2e is such that when the one clamp metal fitting body 1a is tightened by the fastening screw 4 and the nut 5, the nut 5 The fastening screw 4 is pulled in this direction. Here, instead of the long holes 2e, 2e, as shown in FIG.
As shown in (A), the shaft mounting hole 2f is enlarged to a size in which play is generated to the extent that the swing mounting shaft 4a does not fall off.
The swing mounting shaft 4a may be moved in the direction in which the fastening screw 4 is pulled by the amount of the backlash.

The swing mounting shaft 4 thus formed
a is the same shaft as the pivot shaft that pivotally supports the stopper 11. That is, the stopper 11 is pivotally supported by the swing mounting shaft 4a, so that when the one clamp metal fitting body 1a is tightened by the fastening screw 4 and the nut 5, the fastening screw 4 is pulled by the nut 5. The stopper 11 is formed to be slightly movable,
The engagement protrusion 11a of the stopper 11 and the engagement release blocker 1 at the position where the swing mounting shaft 4a has moved to the pulled state.
2a is formed so as to engage with each other, thereby preventing the stopper 11 from being disengaged. For example, as described above, the two clamp metal fitting bodies 1a and 1b are fixed in a state of being orthogonal to each other, that is, a so-called orthogonal clamp. It is formed to function as a metal fitting.

In this case, the pivot shaft of the stopper 11 and the swing mounting shaft 4a may be separately formed and fixed to each other so as to be integrally formed. Also, the engaging protrusion 1 of the stopper 11
The shape of 1a is as shown in FIG. 6 (A) in which a protrusion is implanted, or as shown in FIG. 6 (B) in a cut-and-raised shape, or in FIGS. 6 (C) and (D). Although there is a bent shape as shown, it is not limited to this shape and any shape may be used as long as it is a protruding shape.

Then, if the fastening screw 4 is loosened and the stopper 11 prevents the clamp fitting bodies 1a and 1b from being prevented from rotating with respect to each other, the function as a so-called angle-mountable clamp fitting is achieved.

On the other hand, as shown in FIGS. 7 to 10, as another embodiment, the stopper 21 is formed of a metal material in a substantially frame shape, and the side surface of the stopper is formed on the side surface of the base body of the other clamp fitting body 1b. By contacting and abutting, the clamp metal fitting bodies 1a and 1b are formed so as to prevent rotation of the clamp metal fitting bodies 1a and 1b at an appropriate angle, and in fact, at an angle at which the clamp metal fitting bodies 1a and 1b are orthogonal to each other and connect the pipe P. Similarly to the above-described embodiment, when tightening one clamp metal fitting body 1a with the fastening screw 4 and the nut 5, the pivot shaft of the stopper 21 is slightly moved in the direction in which the fastening screw is pulled by the nut 5. One of the disengagement blocking means is formed so as to come into surface contact with a part of the base body 2b of the other clamp fitting main body 1b to perform the disengagement blocking by the other disengagement blocking means.

As shown in FIGS. 7 and 8, the concrete structure is as follows. First, as shown in FIG. 7 and FIG.
1 is formed, and both open ends thereof are pivotally supported by the swing mounting shaft 4a of the fastening screw 4 formed in the same manner as in the above embodiment. An engaging protrusion 21a is planted inside the U-shaped intermediate portion of the stopper 21, while the base 2b of the other clamp fitting main body 1b has a side surface substantially L-shaped.
The L-shaped engaging body 22 is fixed to the base body 2b by holding the back surface of the standing piece 22b, and the lateral piece 22 of the substantially L-shaped engaging body 22.
An engagement hole 22a that engages with the engagement protrusion 21a is formed in c. The engagement hole 22a may be a through hole as shown, or may be a blind hole (not shown), and may have any shape as long as it is a concave portion with which the engagement protrusion 21a can be engaged. good.

In the case of this structure, first, the stopper 21 is swung to move to the side surface of the base body 2b of the other clamp fitting body 1b, in fact, to the standing piece 22b of the engaging body 22 fixed to the side surface. When the pipe material P is clamped by the one clamp metal body 1a by bringing the side surfaces of the stopper 21 into surface contact and then tightening them with the fastening screw 4 and the nut 5, the stopper 2 is pulled in the direction in which the fastening screw 4 is pulled.
1 moves, and at that position, the engaging protrusion 21 of the stopper 21
a is engaged with the engagement hole 22a, which prevents the stopper 21 from being disengaged.

Further, in this case, at the position where the stopper 21 moves in the direction in which the fastening screw 4 is pulled, the lateral piece 22c of the engaging body 22 and the surface of the stopper 22 on which the engaging protrusion 21a is provided are in surface contact with each other. Therefore, as a whole, the rotation preventing strength between the clamp metal fitting bodies 1a and 1b is remarkably excellent, and the proper angle between the pipe materials P is
In reality, the strength of the orthogonal crossing state is sufficiently secured.

On the other hand, as another mode of the engagement body 22, as shown in FIG. 9, a projection 25 similar to the engagement projection 21a of the above-described embodiment is provided on the lateral piece 22c of the engagement body 22 to prevent the engagement release. Although not shown, in that case, an engaging hole is provided on the stopper 21 side.
Further, as shown in FIG. 10, as another mode of the engaging body 22, a standing piece 26 having a slight height is formed at the tip of the lateral piece 22c of the engaging body 22, and the inner surface of the standing piece 26 is , The lateral piece 2 is formed by forming the inclined surface so that the width becomes narrower as it gets closer to the lateral piece 22c in the distance from the vertical piece 22b.
Even if the protrusion 2c is not provided with a protrusion or an engaging hole, both side surfaces of the stopper 21 are fitted between the upright piece 22c and the upright piece 26 to prevent the engagement from being released and prevent the clamp metal fitting bodies 1a and 1b from rotating. Is performed at the same time, in which case the stopper 21
The engaging body 22 itself having the upright piece 26 constitutes the disengagement blocking one means and the disengagement blocking other means. Further, in the case of these embodiments, the standing piece 22b may not be provided in the engaging body 22, and the side surface of the stopper 21 may be directly brought into surface contact with the base body 2b of the clamp fitting body 1b. Furthermore, since the inner side surfaces of both U-shaped release pieces forming the stopper 21 are positioned so as to sandwich the side surface of the engaging body 22, both inner side surfaces thereof may be in contact with each other to form a surface contact state. The disengagement blocking one means and the disengagement blocking other means are not limited to the structure of the above-described embodiment, and are engaged with the stopper 21 slightly moved in the direction in which the fastening screw 4 is pulled. Any structure may be used as long as it can prevent the release, and the same applies to the stopper 11.

Further, as shown in FIG. 11, the stopper 2
The side surface of 1 is brought into direct surface contact with the side surface of the base body 2b of the other clamp fitting body 1b, and the engagement hole 22a as the other means for preventing engagement release is formed on the back surface of the base body 2a of the one clamp fitting body 1a. Also has a similar effect.

On the other hand, although not shown, the stopper 1
The other clamp metal fitting body 1 on the side not provided with 1 and 21
Also, a stopper is provided on the base body 2b of the base plate 2b of FIG.
As in the above-mentioned embodiment, the stopper is provided with an engagement release preventing one means such as an engagement protrusion for preventing the engagement release, and the base of one clamp fitting body is also provided with the engagement stopper. A state in which the disengagement prevention other means such as an engagement concave portion that engages with the engagement release prevention one means is provided, and the shaft pivotally supporting the stopper is pulled like the stoppers 11 and 21 of the one clamp metal body. It may be formed such that the engagement release blocking one means and the engagement release blocking other means are completely engaged with each other at the position moved to.

In all of these modes, if the stoppers 11 and 21 are released, they function as so-called free-type clamp fittings.

[0034]

According to the present invention thus formed, the tube member is surrounded by the base body and the lid body whose one end is swingably connected to the base body so as to clamp the pipe material, and the fastening screw and the nut are used. A clamp metal fitting body is formed that is clamped by tightening.The two clamp metal fitting bodies are connected so that their bases are back to back so that they can rotate freely. The clamped tubing can be in a state capable of handling both cases, for example, in the case of clamping at right angles or in the state of being intersected at an appropriate angle.

Therefore, one of the two clamp metal fitting bodies is pivotally supported on the base body of one clamp metal fitting body by the rocking mounting portion of the fastening screw so as to appropriately rotate the two clamp metal fitting bodies. A stopper that prevents the two clamp metal fittings is arranged at an appropriate angle, and the base of the other clamp metal fitting body of the two clamp metal fitting bodies engages with the stopper to rotate the clamp metal fitting bodies at an appropriate angle. Since the engaging portion for blocking is provided, the rotation of both clamp metal fitting bodies is prevented by the engagement of the stopper and the engaging portion, and the angle between both clamp metal fitting bodies is set in this state. That is, if this angle is set to the orthogonal state,
A so-called orthogonal clamp is possible.

Therefore, the rotation prevention by this stopper,
Alternatively, by releasing the blocking, it is possible to serve also as a clamp metal fitting of a crossing type, for example, both a right angle type and a free angle type.

Then, when the pipes are clamped by tightening the clamp fitting body with the fastening screw,
The stopper is provided with a disengagement preventing one means such as an engaging protrusion for preventing disengagement, and the base body of the other clamp fitting body is engaged with the disengagement preventing one means. The other means for preventing engagement release is provided, and the swing shaft of the fastening screw and the pivot shaft of the stopper are fixedly integrated or made the same, and one of the clamp metal fitting bodies is fastened by the fastening screw and the nut. When tightening, the nut is slightly movable in the direction in which the tightening screw is pulled, and at the position where the shaft has moved to the pulled state, the engagement release blocking one means and the engagement release blocking other means are completely engaged. Since the stopper is moving in a direction that strengthens the engagement between the clamp bodies in that state, the engagement release blocking one means and the engagement release blocking other means engage with each other. stopper Engagement between the engaging portion is reliably performed, the rotation of the clamping bracket main bodies unless loosening the fastening screws and nuts has never come off is reliably prevented.

In the case of the conventional example, when clamped in the orthogonal state, the pipe material is clamped on both clamp metal fitting bodies in order to prevent the engagement state of the engaging piece of the stopper and the engagement notch from being released. Therefore, the accuracy of the stopper shape must be made extremely good so that the stopper locking piece comes into contact with the peripheral surface of the pipe material, and the stopper mounting accuracy must also be made good, which causes a problem of cost increase. ,
In the case of the present invention, as described above, since the engagement by the stopper is not released unless the fastening screw and the nut of the one clamp metal fitting body provided with the stopper are loosened,
In particular, the accuracy of the shape of the stopper, the mounting structure, etc. is not required, and the overall processing cost increase can be suppressed.

In particular, as one mode of its concrete structure, an engaging piece having one means for preventing disengagement is projected on the stopper, and an engaging notch is provided on the base body of the other clamp metal fitting body to engage them. Since it is formed so as to prevent the rotation of both clamp metal fitting bodies at an appropriate angle by engaging, the stopper engages the engaging notch with the engagement notch and tightens the fastening screw so that the stopper engages between the clamp body parts. Since the clamp metal fittings move in the direction that strengthens the joint, rotation of the clamp metal fittings is reliably prevented, and it will not come off unless the fastening screw and nut are loosened and the pipe material clamped to the other clamp metal fitting body is removed. .

In another embodiment, the stopper is formed of a metal material in a substantially frame shape, and the side surface of the stopper is brought into surface contact with the side surface of the base body of the other clamp metal fitting main body so that the two clamp metal fitting main bodies are brought into contact with each other. Since it is formed to prevent the rotation at an appropriate angle, the rotation of both clamp metal fitting bodies can be prevented by simply contacting the side surface of the stopper with the side surface of the base body of the other clamp metal fitting body. ,
Since the metal material is formed in a substantially frame shape, it is extremely excellent in strength, and by tightening the fastening screw, the stopper moves in the direction that strengthens the engagement between both clamp bodies, so Rotation is surely blocked,
It will not come off unless the fastening screw is loosened.

On the other hand, the stopper is also arranged on the base body of the other clamp metal fitting body, and the engaging portion with which the stopper engages is provided on the base body of the other clamp metal fitting body, and this stopper prevents the disengagement. One engaging-disengagement preventing means such as an engaging protrusion is provided, and the other one of the engaging-disengagement preventing means such as an engaging recess engaging with the engaging-disengagement preventing one means is also provided on the base body of one clamp fitting body. , Like the stopper of one clamp metal fitting body, the disengagement blocking one means and the disengagement blocking other means are completely engaged at the position where the shaft pivotally supporting the stopper is moved to the pulled state. With this configuration, the stopper becomes a double stopper, and unless the fastening screws and nuts of both clamp metal fitting bodies are loosened to release the engagement between the engagement release prevention one means and the engagement release prevention other means. Since the rotation of the pump metal fitting bodies is more reliably blocked and does not come off, the rotation prevention can be reliably carried out, thereby providing a more secure pipe material coupling clamp metal fitting. it can.

In all of these modes, if the stopper is released, it functions as a so-called free-type clamp fitting.

Therefore, while the pipes are used as both the orthogonal type for clamping the pipes at right angles and the free type for clamping the pipes in a state where they intersect at an appropriate angle, they are orthogonal when forming a framework for a scaffold at a construction site with the pipes. Even if it is clamped to, even if it is clamped in a state where it intersects at an appropriate angle, the tube materials are surely assembled and connected at an appropriate angle without unlocking in each state, It is also extremely excellent in strength and has various excellent effects such as cost reduction.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a front view of a pipe material according to an embodiment of the present invention before being clamped.

FIG. 3 is a front view of a pipe material according to an embodiment of the present invention in a clamped state.

FIG. 4 is a perspective view of a stopper according to an embodiment of the present invention.

FIG. 5 is a front view of each aspect of the base body of one clamp fitting body in the embodiment of the present invention.

FIG. 6 is a front view of each aspect of the stopper according to the embodiment of the present invention.

FIG. 7 is a front view of a pipe material according to another embodiment of the present invention in a clamped state.

FIG. 8 is a side view showing a state in which a pipe material according to another embodiment of the present invention is clamped.

FIG. 9 is a perspective view of another aspect of the engagement body in another embodiment of the present invention.

FIG. 10 is a perspective view of still another aspect of the engagement body according to another embodiment of the present invention.

FIG. 11 is a side view showing a state in which a pipe material according to still another embodiment of the present invention is clamped.

[Explanation of symbols]

P Pipe material 1 Clamp metal body 1a Clamp metal body 1b Clamp metal body 2 Base body 2a Base body 2b Base body 2c Side piece 2d Side piece 2e Long hole 2f Shaft mounting hole 3 Lid body 4 Fastening screw 4a Swing mounting shaft 5 Nut 6 Nut receiving part 11 Stopper 11a Engagement protrusion 11b Engagement piece 12 Engagement notch 12a Engagement stop blocker 21 Stopper 21a Engagement protrusion 22 Engagement body 22a Engagement hole 22b Standing piece 22c Side piece 25 Protrusion 26 Standing piece

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hiro Saito, 3327 Shinkawa, Niisato-mura, Seta-gun, Gunma Prefecture Gunma Factory Holly Co., Ltd. (72) Makoto Saito, 3327 Shinkawa, Niisato-mura, Seta-gun, Gunma Holly Gunma Factory Co., Ltd.

Claims (4)

[Claims] 1. A clamp metal fitting main body for clamping by clamping a pipe material by a base body and a lid body having one end swingably connected to the base body, and clamping by fastening with a fastening screw and a nut. However, two of these clamp metal fittings are connected so that their bases are back to back so that they can rotate relative to each other. ,
There is a stopper that is pivotally supported on the swing mounting part of the fastening screw to block the rotation of both clamp fitting bodies at an appropriate angle, and the other clamp fitting of the two clamp fitting bodies The base of the main body is provided with an engaging portion that engages with the stopper to prevent rotation of both clamp metal fitting bodies at an appropriate angle, and the stopper is provided with an engaging protrusion that prevents disengagement. Such disengagement prevention one means, and the other body of the clamp metal fitting body is provided with another disengagement prevention means such as an engaging recess engaging with the disengagement prevention one means. The moving shaft and the pivot shaft of the stopper are fixed integrally or the same, and these shafts can be slightly moved in the direction in which the fastening screw is pulled by the nut when tightening one clamp metal fitting body with the fastening screw and the nut. Formed into Tubing connecting clamp fitting, characterized in that the shaft and the disengagement preventing contrast means and disengagement preventing other means at a position moved to the tensioned state is formed so as to fully engage Te. 2. An engaging piece having one means for preventing engagement release is projected from the stopper, and an engaging notch is provided in the base body of the other clamp metal fitting body so that they engage with each other. The clamp fitting for connecting pipe materials according to claim 1, wherein the clamp fitting is formed so as to prevent the rotation of the plug at an appropriate angle. 3. The stopper is formed of a metal material in a substantially frame shape,
2. The clamp fitting for pipe material coupling according to claim 1, wherein the side surface of the stopper is brought into surface contact with the side surface of the base body of the other clamp fitting body so as to prevent rotation of both clamp fitting bodies at an appropriate angle. . 4. The stopper is also arranged on the base body of the other clamp metal fitting body, and an engaging portion with which the stopper engages is provided on the base body of one clamp metal fitting body, and this stopper prevents the disengagement. One engaging-disengagement preventing means such as an engaging protrusion is provided, and the other one of the engaging-disengagement preventing means such as an engaging recess engaging with the engaging-disengagement preventing one means is also provided on the base body of one clamp fitting body. , Like the stopper of one clamp metal fitting body, the disengagement blocking one means and the disengagement blocking other means are completely engaged at the position where the shaft pivotally supporting the stopper is moved to the pulled state. The clamp fitting for connecting pipe materials according to any one of claims 1 to 3, which is formed as described above.