JP5061012B2 - Connector - Google Patents

Description

  The present invention relates to a connector for connecting a tubular body to another tubular body or another component.

For example, in order to use a tubular body such as a metal round pipe as a constituent material of a building or a workpiece, it is necessary to connect the tubular body to another tubular body or another structural member. Therefore, conventionally, various connecting tools have been used (see, for example, Patent Document 1).
18 and 19 show typical usage examples of the connecting portion.
The connection tool 200 includes a main body 201 that is attached to the distal end of the tube P or the component K, and an annular portion 202 that is integrally formed with the main body 201. A center line a that passes through the annular portion 202 and a reference line b that passes through the main body portion 201 are orthogonal to each other. Note that the reference line b coincides with the axis of the tube P.

  Then, the connecting tool 200 is attached to the pipe P or the component K to be connected, the annular portions 202 are arranged in the direction of the center line a, the bolt 203 is passed through the annular portions 202, and the nut 204 is screwed. By combining the pipes P, the pipes P are connected to each other as shown in FIG. 18 in a state where the angle formed by the reference lines b is set to a predetermined angle. As shown in FIG. Is connected.

Here, when attaching the connector 200 to the pipe P or the component K, for example, the following has been performed. In addition, although the case where the connection tool 200 is attached to the pipe body P is demonstrated here, the case where it attaches to the structure K is also the same.
(1) As shown in FIG. 20A, the connection tool 200 is welded to the pipe P. That is, the connection tool 200 is attached to the pipe body P by the welded portion 205.
(2) As shown in FIG. 20B, the pipe P is threaded and the pipe P is fastened to the connection tool 200. That is, the connection tool 200 is attached to the pipe body P by forming the screw part 206 in the tube body P and tightening the screw part 206 to the screw part formed in the connection tool 200.
(3) As shown in FIG. 20C, the connecting tool 200 is attached to the pipe P by fitting the tip of the pipe P into the connecting tool 200 and tightening the fixing screw 207 in this state.
(4) As shown in FIG. 20 (d), the connection tool 200 is attached to the tube P by fitting the tip of the tube P into the connection tool 200 and inserting the bolt 208 in this state.
(5) As shown in FIG. 20 (e), the distal end of the pipe P is fitted into the connector 200, and in this state, the outer periphery of the main body 201 is tightened with the fixing screw 210 via the belt 209. Thus, the connection tool 200 is attached to the tube P.
JP 2003-90133 A

However, in the case of the welding of (1) above, since it is fixed by the welded portion 205, disassembly and reuse after installation is difficult. In the case of threading of (2) above, depending on the installation situation at the time of installation. There is a problem that the rotational position of the annular portion 202 around the reference line b cannot be changed or adjusted, and the degree of freedom in installation is reduced.
Further, in the case of the welding of (1), the threading of (2), and the bolting of (4), the rotational position around the reference line b of the annular portion 202 cannot be changed or adjusted after attachment.
In addition, in the case of screwing of the above (3) and (5), the rotational position around the reference line b of the annular portion 202 can be changed and adjusted at the time of attachment or after attachment, but the rotational position is adjusted after attachment. When the fixing screws 207 and 210 are removed, the connecting tool 200 is not easily detached from the tubular body P in the direction of the reference line b. There is a problem that it becomes easy to come off.

  The present invention has been made in view of such circumstances, and not only enables disassembly and reuse, but also improves the degree of freedom of connection at the time of attachment or after attachment, and connects easily and firmly. An object of the present invention is to provide a connector that can be used.

In order to solve the above problems, the present invention provides the following means.
The present invention is a connection tool for connecting a tube body to another tube body or another component, and has a ring-shaped portion, and is a hollow extending in a reference line direction intersecting with a center line passing through the ring-shaped portion. A main body having a shape, an inner connecting portion provided inside the main body so as to be rotatable about an axis extending in the reference line direction, and having a through-hole penetrating in the reference line direction, and the outside of the main body And an outer side connecting portion having a through hole penetrating in the reference line direction, and penetrating the inner side connecting portion and the outer side connecting portion. A bolt inserted through the hole and extending in the reference line direction and rotatably provided about an axis extending in the reference line direction, and the bolt extending around the axis extending in the reference line direction With the inner side connecting part A first fixing portion is provided for fixing the bolt and the inner side connecting portion so as to rotate, and the inner side connecting portion and the outer side connecting portion rotate together about an axis extending in the reference line direction. As described above, a second fixing portion for fixing the inner side connecting portion and the outer side connecting portion is provided.

In this invention, the inner side coupling part is rotatably supported in the main body part with the bolt inserted through the through hole of the inner side coupling part and the through hole of the outer side coupling part. Further, the bolt and the inner side connecting portion are fixed by the first fixing portion, and the inner side connecting portion and the outer side connecting portion are fixed by the second fixing portion. In this state, when the outer side connecting portion is rotated, the inner side connecting portion is rotated via the second fixing portion, and the bolt is further rotated via the first fixing portion. At this time, since the main body portion and the inner side connecting portion can rotate with each other, the main body portion can be changed and adjusted to an appropriate rotation position with the bolts loosened at the time of attachment or after attachment. .
As a result, the main body can be easily and firmly attached by rotating the outer side connecting portion, and the bolt can be loosened only by rotating the outer side connecting portion after the attachment. Can be easily removed and the rotational position can be adjusted. In addition, even if the bolt is slightly loosened while the bolt and the screw hole of the attachment destination are screwed together, the main body does not immediately come off from other pipes or components. It can be done easily.

  Further, the present invention provides the annular member through an annular member formed in an annular shape and a locking hole penetrating in a direction intersecting the reference line direction formed in the other tube body or the other component. A pin through which the member is inserted, and the annular member is provided with a through hole penetrating in a direction intersecting with the pin through which the annular member is inserted. The bolt includes the inner side connecting portion, the outer side connecting portion, and the annular shape. It is characterized by being inserted through each through-hole of the member and screwed into a nut disposed in the annular member.

In the present invention, the annular member is disposed in the tubular body in a state where the bolt is passed through the through hole of the annular member and screwed into the nut. And an external side connection part is rotated in the state which passed the pin through the locking hole and the annular member. Then, the bolt rotates through the inner side connecting portion, and the tip of the bolt is further tightened into the nut. That is, the bolt head and the nut approach each other in the reference line direction. Accordingly, a tensile force is applied to the annular member with respect to the main body portion via the nut, and the annular member is gradually brought closer to the main body portion.
Then, the pin comes into contact with the inner peripheral portion of the annular member at a certain timing. Further, when the bolt is tightened to the nut via the external connection portion, the main body portion is firmly attached to the tube body by the pulling force on the annular member and the strength in the reference line direction by the pin.
As a result, not only can the main body be easily and firmly attached, but also after installation, the bolts can be loosened simply by rotating the external connecting portion, and the main body can be easily removed or rotated. Adjustments can be made. Further, since the separation from the main body is regulated by the annular member and the pin, it is possible to prevent the main body from being easily detached during attachment or adjustment.

  Further, the present invention is characterized in that an engagement recess for engaging the pin in the reference line direction is formed in a region facing the through hole of the annular member in the inner peripheral portion of the annular member. And

  According to the present invention, since the pin can be supported when the main body is attached to the tube body or other components, the tube bodies or the tube body and other components can be connected more firmly. Can do.

  Further, in the present invention, the pin includes a small-diameter portion formed at the center in the longitudinal direction, and a large-diameter portion formed at a larger diameter than the small-diameter portion at both ends in the longitudinal direction, and the small-diameter portion The length dimension is substantially the same as the thickness dimension of the annular member.

  According to the present invention, it is possible to prevent the pin from being easily pulled out in the longitudinal direction even when the main body is attached to the tube body or other components or when the bolt is loosened for adjustment.

  Further, the present invention is characterized in that a chamfered portion is formed on the inner peripheral portion of the annular member.

  According to the present invention, the pin can be easily passed through the annular member during assembly.

  Further, the present invention is characterized in that a support portion for supporting the nut is formed in the vicinity of the through hole of the annular member in the inner peripheral portion of the annular member.

  According to the present invention, the nut can be supported, and not only the attachment work is facilitated, but also the tube bodies or the tube body and other components can be more firmly connected. Further, there is no need to thread the member, and the cost can be reduced.

  In the present invention, the first fixing portion includes an accommodation recess for accommodating and fixing the head of the bolt, and the second fixing portion is either the inner side connection portion or the outer side connection portion. It is provided with the engaging part provided in one, and the to-be-engaged part which is provided in the other of the said inner side connection part or the said outer side connection part, and engages with the said engagement part.

  According to this invention, a volt | bolt and an internal side connection part can be fixed firmly, and an external side connection part and an internal side connection part can be fixed firmly. Further, there is no need to thread the member, and the cost can be reduced.

  According to the present invention, not only disassembly and reuse are possible, but also the degree of freedom of connection can be improved at the time of attachment or after attachment, and the connection can be made easily and firmly.

(Embodiment 1)
Hereinafter, a connector according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of an installation situation of a connector as a first embodiment of the present invention.
First, with reference to FIG. 1, the installation state of the connector 1 is demonstrated.
A plurality of support bases (other components) 2 are embedded in the ground, and the pipe P is connected to the upper end of the support base 2 in an obliquely upward direction. The tube P is a round pipe made of metal.
In addition, the pipes Pk connected in a lattice form are inclined and leaned, and the lattice-like pipes Pk are connected to the tips of a plurality of pipes P extended from the column base 2. Thereby, the lattice-shaped tube body Pk is supported in an inclined posture.
In addition, the solar cell panel 3 is being fixed to the grid | lattice-like pipe body Pk, and it functions as a solar cell as the whole structure.

Next, the connector 1 installed in this way will be described.
FIG. 2 is an explanatory diagram illustrating a state in which the pipe body P and the column base 2 are connected using the connection tool 1.
FIG. 3 is an exploded perspective view showing the connector 1 in an exploded manner for each part.
Below, the connector 1 connected to the support | pillar base 2 is demonstrated. In addition, although the code | symbol 1a in FIG. 2 shows the connection tool for attaching to the pipe body P, this connection tool 1a is later mentioned as 2nd Embodiment.
The connector 1 in the present embodiment is made of metal, and as shown in FIG. 3, a main body portion 5 formed in a conical shape and an inner disk portion (inner side connecting portion) formed in a disk shape. ) 10, an outer disk part (external connection part) 11 formed in a disk shape, and a bolt 12.
The main body 5 is extended on the reference line B. An annular ring portion 6 is integrally formed on the top of the main body portion 5. A center line A passing through the center of the annular portion 6 is directed in a direction orthogonal to the reference line B. Further, the annular portion 6 is provided eccentrically on one side in the center line A direction at the top of the main body portion 5 (shown in FIG. 4).
Moreover, as shown in FIG.3 and FIG.4, the main-body part 5 is formed in the hollow shape, and the cavity part 5a is formed in the inside. A rectangular opening 5 b is formed on the bottom surface of the main body 5. The cavity 5a is opened outward through the opening 5b. Furthermore, the opening dimension d1 of the opening 5b in the center line A direction is smaller than the length dimension d2 of the cavity 5a in the center line A direction. That is, a step support portion 7 is formed in the main body portion 5 so as to protrude inward in the center line A direction.

  Further, the inner disk portion 10 is formed to have a smaller diameter than the outer disk portion 11. The outer diameter of the inner disk part 10 is larger than the opening dimension d1 and smaller than the length dimension d2. And the inner side disc part 10 is distribute | arranged in the cavity 5a of the main-body part 5, as shown in FIG. That is, the inner disk part 10 is inclined and inserted into the cavity part 5a from the edge of the inner disk part 10 through the opening 5b, whereby the inner disk part 10 is arranged in the cavity part 5a. When 10 is released in a direction orthogonal to the reference line B, the edge of the inner disk part 10 comes into contact with the step support part 7. By these step support portions 7, the inner disc portion 10 is rotatably supported around the reference line B in the hollow portion 5 a.

Further, as shown in FIG. 5, a through hole 10 a that penetrates in the thickness direction is formed in the center of the inner disk part 10. Bolts 12 are inserted through the through holes 10a. In addition, an accommodation recess (first fixing portion) 13 for accommodating and fixing the hexagonal head portion 12a of the bolt 12 is formed around the through hole 10a in one main surface of the inner disc portion 10. Yes. The accommodating recess 13 is formed in a hexagonal shape so that the head portion 12a of the bolt 12 is fitted therein. The head 12a is housed and fixed in the housing recess 13 so that the inner disk portion 10 and the bolt 12 rotate together with the reference line B as the center of rotation.
In addition, as shown in FIG. 6, the other main surface of the inner disc portion 10 has a plurality of engaged recesses (second fixing portion, engaged portion) that sunk in a rectangular shape radially inward. Part) 14 is formed. The plurality of engaged recesses 14 are arranged at equal intervals in the circumferential direction of the inner disk part 10.

As shown in FIGS. 7 and 8, a through hole 11 a that penetrates in the thickness direction is formed at the center of the outer disk part 11. Bolts 12 are inserted through the through holes 11a. On one main surface of the outer disk part 11, a plurality of engaging convex parts (second fixing parts, engaging parts) 15 protruding in a rectangular shape in the thickness direction are formed. The plurality of engaging convex portions 15 are arranged at equal intervals in the circumferential direction of the outer disk portion 11. Further, when the other main surface of the inner disc portion 10 and one main surface of the outer disc portion 11 are overlapped at a predetermined rotational position on the reference line B axis, the engagement convex portion 15 and the engaged portion are engaged. The mating recesses 14 are adapted to engage with each other. Then, the engagement convex portion 15 and the engagement concave portion 14 are engaged, whereby the inner disk portion 10 and the outer disk portion 11 rotate together with the reference line B as the rotation center. .
In addition, a plurality of cutout portions 16 cut out radially inward are formed on the outer peripheral surface of the outer disk portion 11. The plurality of notches 16 are arranged at equal intervals in the circumferential direction of the outer disk part 11.
In addition, the diameter dimension of the outer side disk part 11 is larger than the diameter dimension of the main-body part 5. FIG.

The bolt 12 is inserted through the through hole 10 a of the inner disk part 10 and the through hole 11 a of the outer disk part 11.
Under such a configuration, the bolt 12 is connected from the main body portion 5 to the reference portion 5 by arranging the inner disc portion 10 in the hollow portion 5a in a state where the bolt 12 is inserted into the through hole 11a of the inner disc portion 10. By extending the bolt 12 through the through hole 11a of the outer disc portion 11, the bolt 12, the inner disc portion 10 and the outer disc portion 11 are rotated around the reference line B as the center of rotation. , And can rotate relative to each other. Further, from this state, as shown in FIG. 9, the head 12 a of the bolt 12 is fitted into the receiving recess 13, and the outer disc 11 is brought into contact with the inner disc 10 to form the engaging projection 15. By engaging the engaged recess 14, the bolt 12, the inner disk part 10 and the outer disk part 11 are fixed, and the reference lines of these bolts 12, the inner disk part 10 and the outer disk part 11 are fixed. Mutual relative rotation around B as the rotation center is regulated. That is, in this connected state, the bolt 12, the inner disk part 10, and the outer disk part 11 are all rotated integrally with respect to the main body part 5.

Next, the usage method of the connection tool 1 in this embodiment comprised in this way is demonstrated.
First, as shown in FIG. 9, the bolt 12, the inner disk part 10, and the outer disk part 11 are connected as described above, and project from the other main surface of the outer disk part 11 through the through hole 11 a. The tip of the bolt 12 to be inserted is inserted into the screw hole 18 of the column base 2. Then, the outer disk part 11 is rotated around the reference line B. Then, the rotational force is transmitted to the inner disk part 10 via the engaging convex part 15 and the engaged concave part 14, and the inner disk part 10 rotates around the reference line B in the hollow part 5a. To do. Furthermore, the rotational force of the inner disk part 10 is transmitted to the bolt 12 through the housing recess 13, and the bolt 12 also rotates about the reference line B. That is, by rotating the outer disk part 11, the bolt 12 rotates through the inner disk part 10. Thereby, as shown in FIG. 10, the bolt 12 is tightened into the screw hole 18. Further, a tool (for example, a hook spanner) is installed in the notch 16 of the outer disk part 11, and the outer disk part 11 is further rotated using the tool to further screw the bolt 12 into the screw hole 18. Thereby, the main-body part 5 is firmly attached to the column base 2.
And as shown in FIG. 1, by bolting via the main-body part 5 attached to the support | pillar base 2, the other main-body part 5 attached to the pipe P, and the annular part 6, the pipe | tube P In a state where the axis and the reference line B of the main body 5 are set at a predetermined angle, the tube P and the support base 2 are firmly connected.

Here, depending on the situation of the installation site, the installation positions of the plurality of support bases 2 are installed at slightly different positions and heights from the same straight line, and the installation positions and angles of the grid-like tubular bodies Pk Will be slightly different.
Therefore, it is necessary to adjust the direction and angle of the pipe P according to the situation at the site. In particular, in order to change and adjust the direction of the center line A of the annular portion 6 around the reference line B, it is necessary to rotate the main body 5 around the reference line B.
In the connector 1 according to this embodiment, as shown in FIG. 9, the bolt 12, the inner disk part 10, the outer disk part 11, and the main body part 5 are relatively rotated around the reference line B at the time of attachment. Since it is possible, the main body part 5 can be easily attached to the column base 2 by rotating the outer disk part 11 with the annular part 6 oriented in an appropriate direction. Even if it is slightly deviated, the orientation of the annular portion 6 can be sequentially corrected by rotating only the main body portion 5 around the reference line B.

Even after the main body 5 is attached, the bolt 12 is rotated via the inner disk portion 10 by rotating the outer disk portion 11 to the opposite side by using a tool as shown in FIG. The screw hole 18 is loosened. In this state, the orientation of the annular portion 6 can be easily corrected by rotating the main body portion 5.
Furthermore, when disassembling, the bolt 12 can be easily removed from the screw hole 18 by rotating the outer disk part 11.

As described above, according to the connection tool 1 in the present embodiment, the main body 5 can be quickly and easily attached to the column base 2 by rotating the outer disk part 11 exposed to the outside. Further, by rotating the main body 5, the direction of the annular portion 6 can be easily changed and adjusted.
Therefore, according to the connection tool 1, not only disassembly and reuse are possible, but also the degree of freedom of connection is improved during and after installation, and the tubular body P and the column base 2 are easily and firmly connected. be able to.
Further, even if the bolt 12 is slightly loosened in a state where the bolt 12 and the screw hole 18 are screwed together, the main body portion 5 does not immediately come off from the column base 2, so that attachment and adjustment after attachment are easily performed. be able to.
Moreover, since the accommodation recessed part 13 is formed, the volt | bolt 12 and the inner side disc part 10 can be fixed firmly.
Further, since the engaging convex portion 15 and the engaged concave portion 14 are formed, the outer disc portion 11 and the inner disc portion 10 can be firmly fixed.

(Embodiment 2)
Next, a second embodiment of the present invention will be described.
12 to 17 show a second embodiment of the present invention.
12 to FIG. 17, the same components as those shown in FIG. 1 to FIG.
This embodiment and the first embodiment have the same basic configuration, and different points will be mainly described here.

The connection tool 1a in this embodiment is for attaching the main-body part 5 to the pipe body P. As shown in FIG.
As shown in FIG.12 and FIG.13, the connection tool 1a is provided with the rectangular annular member 22 which consists of metals, and the pin 23 which consists of metals other than each component in 1st Embodiment.
As shown in FIG. 14, a through hole 22 a penetrating in the thickness direction (reference line B direction) is formed in one side portion 22 b of the annular member 22. That is, the through hole 22a penetrates in a direction orthogonal to the center line A1 that passes through the center of the annular member 22.
In addition, an engagement recess 25 is formed on the inner peripheral surface of the one side portion 22c facing the one side portion 22b of the annular member 22 so as to sag outward in the reference line B direction. Further, on the inner peripheral surface of the side portion 22d of the annular member 22, a protruding support portion (support portion) 26 protruding in a direction approaching each other is formed in the vicinity of the through hole 22a. These protruding support portions 26 are for supporting the nuts 28 coaxially with the through holes 22 a in the annular member 22.
Further, a chamfered portion 29 extending from the projecting support portion 26 to the one side portion 22c is formed on the inner peripheral surface of the side portion 22d of the annular member 22.

  Further, the pin 23 is inserted through the annular member 22, and as shown in FIG. 15, the small-diameter portion 32 disposed at the center in the longitudinal direction and the small-diameter portion 32 formed to have a larger diameter than the small-diameter portion 32. And large-diameter portions 33 disposed at both ends. The small diameter portion 32 and the large diameter portion 33 are integrally formed. Further, the length dimension d3 of the small diameter portion 32 is equal to the thickness dimension d4 (shown in FIG. 13) of the engagement recess 25. Then, by inserting the pin 23 into the annular member 22, the small diameter portion 32 of the pin 23 can be engaged with the engaging recess 25.

Next, the usage method of the connection tool 1a in this embodiment comprised in this way is demonstrated.
When the main body 5 is attached to the tube P, the bolt 12, the inner disk 10 and the outer disk 11 are connected to each other, and then the other of the outer disks 11 as shown in FIGS. The tip of the bolt 12 protruding from the main surface through the through hole 11 a is inserted into the through hole 22 a of the annular member 22. Then, the bolt 12 is rotated, and the nut 28 supported by the protruding support portion 26 and the bolt 12 are screwed together. Thereby, the annular member 22 is temporarily fixed to the main body 5 via the bolt 12.
In this state, the annular member 22 is inserted into the tube body P. The annular member 22 is disposed between a pair of fixing holes 35 formed so as to penetrate the peripheral surface of the pipe body P in a direction orthogonal to the axis of the pipe body P. Further, the pin 23 is inserted from the outside of the tubular body P over a pair of fixing holes (locking holes) 35. At this time, the pin 23 passes through the annular member 22. In this case, since the chamfered portion 29 is formed, the pin 23 is guided into the annular member 22, and the pin 23 can easily pass through the annular member 22.
Further, when the pin 23 is passed through the fixing hole 35 and the annular member 22 in this way, the pin 23 is positioned on one side portion 22c of the annular member 22 even if the main body 5 and the pipe P are separated from each other on the reference line B. The main body part 5 and the pipe body P are restricted from being separated by a predetermined distance or more by abutting on the inner peripheral surface.

Then, the outer disk part 11 is rotated with the pin 23 being passed through the fixing hole 35. Then, the bolt 12 rotates through the inner disk part 10, and the tip of the bolt 12 is further tightened into the nut 28. That is, the head 12a and the nut 28 of the bolt 12 approach each other on the reference line B. Accordingly, a tensile force is applied to the annular member 22 with respect to the main body portion 5 via the nut 28, and the annular member 22 is gradually brought closer to the main body portion 5.
Then, the pin 23 comes into contact with the one side portion 22c of the annular member 22 at a certain timing. At this time, the engagement recess 25 is formed in one side portion 22c of the annular member 22, and the length dimension d3 of the small diameter portion 32 is set to be equal to the thickness dimension d4 of the engagement recess 25. Therefore, the small diameter portion 32 of the pin 23 is just engaged with the engaging recess 25. And since the large diameter part 33 is formed in the both ends of the pin 23, it is controlled that the pin 23 moves to a longitudinal direction by the level | step difference of the small diameter part 32 and the large diameter part 33, and from the pipe P It becomes difficult to come off.

Further, when the bolt 12 is tightened to the nut 28 via the outer disk part 11, the main body part 5 is firmly attached to the pipe body P by the tensile force on the annular member 22 and the proof stress in the reference line B direction by the pin 23. Attached to.
Then, as shown in FIG. 12, by connecting this connector 1a to another connector 1a attached to another tube P, the tube body with the reference line B at a predetermined angle. Ps are connected together.
In addition, when the tube P is removed after the attachment as described above or the main body 5 is rotated around the reference line B, the main body 5 is loosened through the outer disk portion 11 to loosen the main body 5. The part 5 can be easily removed or the rotational position of the main body part 5 can be adjusted.

As described above, according to the connection tool 1a in the present embodiment, not only disassembly and reuse can be performed, but also the degree of freedom of connection can be improved at the time of attachment or after attachment, and the connection can be made easily and firmly.
In addition, since the pin 23 is inserted through the annular member 22, the main body 5 and the tube P are restricted from being separated from each other on the reference line B. It can prevent that the part 5 remove | deviates from the pipe body P. FIG.
Moreover, since the engagement recessed part 25 is formed in the annular member 22, when the main-body part 5 is attached to the pipe body P, the pin 23 can be supported and the pipe bodies P are connected more firmly. be able to.
Moreover, since the small diameter part 32 and the large diameter part 33 are formed in the pin 23, when the main-body part 5 is attached to the pipe body P, it can prevent that the pin 23 becomes easy to pull out to a longitudinal direction. .

Further, since the chamfered portion 29 is formed on the annular member 22, the pin 23 can be easily passed through the annular member 22.
Further, since the projecting support portion 26 is formed on the annular member 22, the nut 28 can be supported, and not only the attachment work is facilitated, but also the tube bodies P can be connected more firmly. it can.
The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

It is a figure which shows embodiment of the connection tool which concerns on this invention, Comprising: It is explanatory drawing which shows the installation condition of a connection tool. It is explanatory drawing which shows 1st Embodiment of the connection tool which concerns on this invention. It is a disassembled perspective view which shows the connection tool of FIG. It is a side view which permeate | transmits and shows the main-body part of FIG. It is a perspective view which shows the inner side disc part of FIG. 2 from the one main surface side. It is a perspective view which shows the inner side disc part of FIG. 5 from the other main surface side. It is a perspective view which shows the outer side disk part of FIG. 2 from the one main surface side. It is a perspective view which shows the outer side disk part of FIG. 7 from the other main surface side. It is explanatory drawing which shows a mode that the connector of FIG. 2 is attached to a support | pillar base. It is explanatory drawing which shows a mode that the connection tool of FIG. 9 was attached to the support | pillar base. It is explanatory drawing which shows a mode that the connection tool of FIG. 10 was loosened from the support | pillar base. It is explanatory drawing which shows 2nd Embodiment of the connection tool which concerns on this invention. It is a disassembled perspective view which shows the connection tool of FIG. It is a top view which shows the annular member of FIG. It is a top view which shows the pin of FIG. It is explanatory drawing which shows a mode that the connection tool of FIG. 12 was attached to the tubular body. It is explanatory drawing which shows a mode that the connection tool of FIG. 16 was seen from another angle. It is a perspective view which shows the conventional connection tool for connecting tube bodies. It is a perspective view which shows the conventional connection tool for connecting a tubular body and another structure. It is a perspective view which shows the conventional connection tool.

Explanation of symbols

1, 1a Connector 2 Prop base (other components)
5 Main body part 6 Annular part 10 Inner disk part (inner side connecting part)
10a Through-hole 11 Outer disk part (external connection part)
11a Through-hole 12 Bolt 13 Accommodating recess (first fixing part)
14 Engaged recess (second fixed part, engaged part)
15 engaging convex part (second fixing part, engaging part)
22 annular member 22a through-hole 23 pin 25 engaging recess 26 protruding support (support)
28 Nut 29 Chamfered portion 32 Small diameter portion 33 Large diameter portion 35 Fixing hole (locking hole)
A Center line B Reference line P, Pk Tube

Claims (7)

A connector for connecting a tube body to another tube body or another component,
A hollow main body portion having an annular portion and extending in a reference line direction intersecting with a center line passing through the annular portion;
An inner side coupling portion provided inside the main body portion so as to be rotatable around an axis extending in the reference line direction and having a through hole penetrating in the reference line direction;
An external connection part that is rotatably provided around an axis extending in the reference line direction outside the main body part and has a through-hole penetrating in the reference line direction;
A bolt that is inserted through the through-hole of the inner-side connecting portion and the through-hole of the outer-side connecting portion, is extended in the reference line direction, and is rotatably provided around an axis extending in the reference line direction; With
A first fixing portion is provided for fixing the bolt and the inner side connection portion so that the bolt and the inner side connection portion rotate together about an axis extending in the reference line direction;
A second fixing portion is provided for fixing the inner side connecting portion and the outer side connecting portion so that the inner side connecting portion and the outer side connecting portion rotate together about an axis extending in the reference line direction. It is characterized by being connected. An annular member formed in an annular shape;
A pin for inserting the annular member through a locking hole penetrating in a direction intersecting the reference line direction formed in the other tube body or the other component;
The annular member is provided with a through-hole penetrating in a direction intersecting with a pin passing through the annular member,
The bolt is inserted into a through hole of each of the inner side connecting portion, the outer side connecting portion, and the annular member, and screwed into a nut disposed in the annular member. The connector according to 1.   The engagement recess for engaging the pin in the reference line direction is formed in a region of the inner peripheral portion of the annular member facing the through hole of the annular member. The connector as described. The pin includes a small-diameter portion formed at the center in the longitudinal direction, and a large-diameter portion formed at a larger diameter than the small-diameter portion at both ends in the longitudinal direction,
The length of the said small diameter part is substantially equivalent to the thickness dimension of the said annular member, The connection tool of Claim 2 or Claim 3 characterized by the above-mentioned.   The connecting tool according to any one of claims 2 to 4, wherein a chamfered portion is formed on the inner peripheral portion of the annular member.   The support part which supports the said nut is formed in the vicinity of the through-hole of the said annular member among the internal peripheral parts of the said annular member, The Claim 1 characterized by the above-mentioned. The connector as described. The first fixing portion includes an accommodation recess for accommodating and fixing the head of the bolt,
The second fixing portion is provided on an engagement portion provided on one of the internal side connection portion or the external side connection portion, and on the other of the internal side connection portion or the external side connection portion, The connection tool according to claim 1, further comprising: an engaged portion that engages with the engaging portion.

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