JP5009944B2 - Connecting method using connecting tool - Google Patents

Description

  The present invention relates to a connector for connecting ends of rod-shaped members and a connection method for connecting ends of rod-shaped members using the connectors.

  For example, a concrete utility pole is usually erected on the ground with a predetermined length of the base end of the utility pole embedded in the ground. Such an electric pole is a cylindrical body whose outer peripheral part is made of reinforcing steel and concrete, and the inside is hollow, that is, hollow.

  In such a hollow concrete utility pole, a plurality of rod-shaped members as reinforcing materials are inserted inside, and then, for example, beans gravel or crushed stone is inserted into the gaps between these rod-shaped members, and mortar, concrete, etc. are sequentially added. And I try to reinforce it.

  For example, an aramid rod is used as such a rod-shaped member, but the length of the utility pole is various, and it is difficult to always prepare an aramid rod having the same length as the length of the utility pole, In consideration of storage and handling of aramid rods, it is difficult and inefficient to store as long as it can be applied to any length of power pole.

  Therefore, in consideration of storage and handling, it is preferable to cut and store a rod-shaped member such as an aramid rod into a predetermined length such as 3 meters, but if you want a rod-shaped member longer than this predetermined length It is necessary to connect a plurality of rod-shaped members having a predetermined length.

  In order to connect a plurality of rod-shaped members in this way, as is clearly understood from FIG. 7 of “Rod connection fasteners and threaded portion cutting jigs” disclosed in, for example, Patent Document 1, conventionally, The rods 43 are connected to each other by overlapping the end portions of a certain rod 43 so as to overlap each other and fastening the overlapped end portions with the fixing band 3. In the invention disclosed in Patent Document 2, the base side pipe is connected via a joint pipe, and the joint pipe is further sandwiched by a cover joint to strengthen the connection strength. Furthermore, in the technique disclosed in Patent Document 3, the connecting pipe is connected via a threaded joint, and the threaded joint is further reinforced with a reinforcing joint, and at the same time, the sealing material (and the reinforced joint conical surface) is used to improve confidentiality. .

JP 2006-153050 A JP-A-11-22887 Japanese Utility Model Publication No.57-56280

  In the conventional connecting method described above, since the ends of the rod-shaped members to be connected are overlapped, there is a problem that the overlapped portion is wasted.

  Specifically, for example, an aramid rod used as a rod-like member is relatively expensive, so when an overlap of about 10 to 20 centimeters is required for each connection, one If eight aramid rods connected at two locations are used for each of the concrete utility poles, there will be an overlap of 16 locations and a waste of length ((10-20) cm x 16) that cannot be ignored. Will occur. In other words, since there is an overlap, there is a possibility that one more aramid rod may be required, and there is a problem that a large amount of money is wasted. Further, it is pointed out that it is more economical because it is difficult to increase the efficiency by using a large-diameter aramid rod at the lower part and a thin-diameter aramid rod at the upper part.

  Further, in the case of the pipe connection structure and joint disclosed in Patent Document 2 and Patent Document 3, a body to be connected (base pipe, connection pipe) is connected via a connection body (joint pipe, threaded joint), and further reinforced. Since the structure is reinforced with a body (cover joint, reinforced joint), the structure is complicated, and the connection body and the reinforcement body must be prepared in advance according to the outer diameter of the connected body. There is a problem that it takes time and preparation.

  The present invention has been made in view of the above, and an object of the present invention is to provide a connector that can reliably and easily connect a rod-shaped member without the need to overlap the ends of the rod-shaped member, and the connection. It is in providing the connection method using a tool.

In order to achieve the above object, a connection method using the connector according to claim 1 is formed at predetermined intervals in the longitudinal direction of the tubular member so as to penetrate the tubular member and the peripheral wall portion of the tubular member. A plurality of first screw holes and a plurality of first screw holes formed at predetermined intervals in the longitudinal direction of the tubular member so as to pass through the peripheral wall portion of the tubular member facing the plurality of first screw holes. And a plurality of connecting tools having a plurality of screws that are screwed into the plurality of first and second screw holes and whose tips extend to the inside of the cylindrical member. The connecting method uses a connecting tool for connecting different rod-shaped members, and the inner diameter of the cylindrical member of the first connecting tool is the same as that of the first rod-shaped member to be connected or the cylindrical member of the second connecting tool. The outer diameter of the cylindrical member of the second connector is slightly larger than the outer diameter of the second rod-shaped member to be connected. Is slightly larger, by inserting the end of the first rod-like member from one end of the first connector of the tubular member, inserted from one end of the first connector of the tubular member the first rod-like member is fixed by the first screw hole and the screw is screwed into the second threaded holes, connecting the second from the other end of the tubular member of the first connector which is insert one end of the ingredients of the tubular member, fixed at the second first insertion part of the coupling of the first coupling of the screw holes and screw screwed into the second screw hole and, this from the other end of the second coupling of the tubular member by inserting the second rod-like member, the second rod-shaped inserted from the other end of the second coupling of the tubular member and summarized in that respectively secure the parts material in the first screw hole and the screw is screwed into the second screw hole.

In the connector according to claim 1, the end of the first rod-shaped member is inserted from one end of the cylindrical member, and the one end of the cylindrical member of the second connector is inserted from the other end. The insertion portion of the second connector is inserted and fixed with a screw screwed into the first screw hole and the second screw hole of the first connector, and the cylindrical shape of the second connector is fixed. Insert the end of the second rod-shaped member from the other end of the member, screw the screws into the plurality of screw holes formed in the cylindrical member, and the tips of the screws to the first and second rod-shaped members Since the screws are tightened until they come into strong contact, the rod-shaped members can be reliably and easily connected without overlapping the end portions of the first and second rod-shaped members, and there is no waste of overlapping portions. Can be economicalized.

The gist of the connector according to claim 2 is that the cylindrical member is formed with flat surfaces parallel to each other on the outer peripheral surface along the longitudinal direction. That is, the cylindrical member is a cylindrical member in which the arc-shaped portions of the opposed peripheral wall portions of a cylindrical shape are cut and flat surfaces parallel to each other are formed in the longitudinal direction of the cylindrical member.

In the connector according to claim 2 , since the cylindrical member has a parallel flat surface formed in the longitudinal direction of the cylindrical member, it does not roll and is easy to handle.

The gist of the connector according to claim 3 is that the screw is a screw thread.

Since the coupling tool according to claim 3 is a screw thread screw, the entire thread screw can be embedded in the screw hole, and the head of the thread screw does not protrude from the peripheral wall of the coupling tool. It is good.

  According to the present invention, the end of the first rod-shaped member is inserted from one end of the tubular member, and the end of the second rod-shaped member is inserted from the other end, thereby forming the tubular member. Since the screw is screwed into a plurality of screw holes and tightened until the tip of the screw comes into strong contact with the first and second rod-shaped members, the rod-shaped member is not overlapped with the end of the rod-shaped member. Can be reliably and easily connected, and there is no waste of the overlap portion, so that the economy can be achieved.

  According to the present invention, the end of the first rod-shaped member is inserted from one end of the tubular member, the end of the second rod-shaped member is inserted from the other end, and the cylindrical member Since the screw is screwed into a plurality of screw holes formed by equally dividing the cross section of the cylinder, and the screw is tightened until the tip of the screw comes into strong contact with the first and second rod members, the end of the rod member The rod-shaped members can be reliably and easily connected without overlapping the portions, and the economy of the overlap can be improved by eliminating waste of the overlapping portions. Thus, the connection of the rod-shaped members can be further strengthened.

  Further, according to the present invention, the end portions of the first and second rod-shaped members are inserted from both ends of the connector, the screws are screwed into the screw holes, and the tips of the screws penetrate the peripheral wall portion of the connector. Because the screw is tightened until it comes into strong contact with the first and second rod-shaped members, the rod-shaped members can be securely and easily connected without overlapping the end portions of the rod-shaped members, and there is no waste of overlapping portions. Economicalization can be achieved.

  According to the present invention, the end of the first rod-shaped member is inserted from one end of the first connector, and a screw is screwed into the screw hole of the first connector. The screw is tightened until it comes into strong contact with the rod-like member, the other end of the first connector is inserted from one end of the second connector, and the second end is inserted from the other end of the second connector. Since the rod-shaped member is inserted and screwed into the screw hole of the second connector and tightened strongly, the rod-shaped member can be reliably and easily secured even when the rod-shaped members having different thicknesses do not overlap the end portions of the rod-shaped member. Can be connected to each other, and there is no waste of the overlapping portion, so that the economy can be achieved.

It is a perspective view which shows the coupling tool concerning one Example of this invention. It is the front view and end view which show the coupling tool concerning one Example of this invention. It is a perspective view which shows a mode that the edge parts of two rod-shaped members were connected using the connector shown in FIG. It is a front view which shows a mode that the edge parts of two rod-shaped members were connected using the connector shown in FIGS. It is a perspective view which shows a mode that two rod-shaped members from which thickness differs were connected using the coupling tool of this invention. It is a front view which shows a mode that two rod-shaped members from which thickness differs were connected using the coupling tool of this invention. It is a front view which shows two rod-shaped members with different thickness used for the connection of the two rod-shaped members with different thickness shown in FIG. It is a front view which shows a mode that the thin rod-shaped member used for the connection of the two rod-shaped members from which thickness differs shown in FIG. 5, 6 was connected to the 1st coupling tool. It is a front view which shows a mode that the thick rod-shaped member used for the coupling | bonding of the two rod-shaped members from which thickness differs shown in FIG. 5, 6 was connected with the 2nd coupling tool. It is a perspective view which shows the coupling tool concerning other embodiment of this invention.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 and FIGS. 2A and 2B are a perspective view, a front view, and an end view, respectively, showing a connector according to an embodiment of the present invention. The connecting tool 1 shown in the figure is a connecting tool for connecting the ends of two rod-shaped members, for example, aramid rods, and has a cylindrical tubular member 3. In the drawing, a plurality (four in this embodiment) of first screw holes 5a are provided in the upper peripheral wall portion so as to penetrate the peripheral wall portion of the cylindrical member 3 at a predetermined interval in the longitudinal direction of the cylindrical member 3. 5b, 5c, and 5d are formed, and the first screw holes 5a to 5d are screwed with the worm screw 7, and the tip of the worm screw 7 extends to the inside of the cylindrical member 3. Needless to say, the rod-shaped member is not limited to a resin such as an aramid rod or a carbon fiber rod, but may be a metal such as a reinforcing bar, a stainless steel rod, or a piano wire.

  Similarly, the lower peripheral wall portion of the cylindrical member 3 facing the first screw holes 5a to 5d penetrates the peripheral wall portion of the cylindrical member 3 at a predetermined interval in the longitudinal direction of the cylindrical member 3. A plurality of (four in this embodiment) second screw holes 9a, 9b, 9c, 9d are formed, and the second screw holes 9a to 9d are screwed with the worm screw 7, The tip of the potato screw 7 extends to the inside of the cylindrical member 3.

  In order to connect the ends of the two rod-shaped members using the connector 1 configured as described above, as shown in FIGS. 3 and 4, from both ends of the tubular member 3 of the connector 1. The respective end portions of the two rod-like members 11 and 13 are inserted. More specifically, the end of the first rod-shaped member 11 is inserted into the left end that is one end of the cylindrical member 3, and the right end that is the other end of the cylindrical member 3. Is inserted with the end of the second rod-like member 13. The first and second rod-shaped members 11 and 13 are inserted from the end of the tubular member 3 to the extent that the respective end portions abut or abut at the substantially center of the tubular member 3, and are at least tubular. It is desirable that the first screw holes 5a to 5d are inserted to the extent that any one of the first screw holes 5a to 5d is positioned on the rod-like members 11 and 13 inserted into the member 3.

  Thus, after inserting each edge part of the 1st, 2nd rod-shaped members 11 and 13 from the both ends of the cylindrical member 3, it is in the 1st screw hole 5a-5d and the 2nd screw hole 9a-9d. Screws 7 are screwed together, and the screws are tightened until the tip of each potato screw 7 penetrates the peripheral wall portion of the tubular member 3 of the connector 1 and comes into strong contact with the first and second rod-like members 11 and 13.

  When the potato screws 7 are tightened in this way, the end portions of the first rod-like members 11 are screwed into the screw holes 5a, 5b, 9a, 9b to be tightened at the tips of the umbilical screws 7 on the left side of the connector 1. The end of the second rod-shaped member 13 is fixed to the right side of the connector 1 at the tip of the screw 7 to be screwed into the screw holes 5c, 5d, 9c, 9d and tightened. Therefore, the first and second rod-shaped members 11 and 13 are strongly connected to each other through the cylindrical member 3.

  In addition, although the said description has demonstrated the case where the edge parts of the rod-shaped members 11 and 13 with substantially the same thickness are connected, rod-shaped members 11 and 13 are rod-shaped members even if the thickness is slightly different. Can be inserted into the tubular member 3 of the connector 1 and can be connected even if they are not the same thickness as long as the tip of the potato screw 7 can be fixed in contact with the rod member. That is.

  In other words, the lower part where the strength is required, or the portion where the strength is locally needed, the strength is excellent, and an expensive large-diameter rod-shaped member is used. It becomes possible to increase the economy efficiently.

  As described above, the rod-shaped members 11 and 13 can be strongly coupled to each other using the coupling tool 1 of the present embodiment, but there is no portion where the ends of the rod-shaped members overlap as in the prior art. Therefore, the waste of the overlap portion can be eliminated, the economy can be promoted, and the connecting method can be simply and reliably connected by simply tightening the screw 7 even when the rod-like member is inserted. it can.

  Next, with reference to FIG. 5, 6, the connection method in the case of connecting the edge part of the rod-shaped member from which thickness differs using two or more connection tools of this invention is demonstrated.

  5 and 6 show the case where the thin rod-like member 21 and the thick rod-like member 23 are connected by the first connector 10 and the second connector 20, but in this way, the thicknesses are different from each other. In order to connect the rod-shaped members 21, 23, the thin rod-shaped member 21 is coupled to the thin first connector 10, the thick rod-shaped member 23 is coupled to the thick second connector 20, and then the first By connecting the connector 10 to the second connector 20, the thin rod member 21 and the thick rod member 23 are connected. The first and second couplers 10 and 20 are exactly the same in structure and function as the coupler 1 shown in FIG. 1, but only the diameter of the cylindrical member 3 is different. The parts of the second couplers 10 and 20 will be described with the same reference numerals as in FIG.

  In order to explain the connection between the thin rod-shaped member 21 and the thick rod-shaped member 23 in an easy-to-understand manner, a description will be given with reference to FIGS.

  FIG. 7 shows only the thin rod-like member 21 and the thick rod-like member 23 described above in an easy-to-understand manner. However, the two rod-like members 21 and 23 having different thicknesses are to be connected. .

  FIG. 8 shows only the connection between the thin rod-shaped member 21 and the first connector 10 among those shown in FIGS. 5 and 6 in an easy-to-understand manner. As shown in FIG. The end of the member 21 is inserted from one end of the first connector 10, and all the screw holes 5a, 5b, 9a of the first connector 10 located on the inserted thin rod-shaped member 21 are inserted. 9b, and the screw 7 is screwed in, and tightened until the tip of the screw 7 penetrates the peripheral wall portion of the first connector 10 and comes into strong contact with the thin rod-shaped member 21, whereby the thin rod-shaped member 21 is tightened. It is possible to strongly connect to one connector 10.

  In FIG. 8, the thin rod-like member 21 is inserted into the first connector 10 up to about half. However, the thin rod-like member 21 is inserted further into the first connector 10 or the first It may be inserted into the entire connector 10. In short, it is only necessary that the thin rod-like member 21 is firmly and strongly connected to the first connector 10 with the screw 7.

  FIG. 9 shows only the connection between the thick rod-shaped member 23 and the second connector 20 among those shown in FIGS. 5 and 6 in an easy-to-understand manner, but as shown in FIG. The end portion of the member 23 is inserted from one end portion of the second connector 20, and all the screw holes 5 c, 5 d, 9 c of the second connector 20 positioned on the inserted thick rod-shaped member 23. 9d, and the screw 7 is screwed together and tightened until the tip of the screw 7 penetrates the peripheral wall portion of the second connector 20 and comes into strong contact with the thick rod member 23, whereby the thick rod member 23 is tightened. It is possible to strongly connect to the second connector 20.

  Note that the insertion of the thick rod-like member 23 into the second connector 20 in FIG. 9 does not need to be inserted to the back of the second connector 20, but should be about half of the insertion. This is because the first connecting tool 10 connected by inserting the thin rod-shaped member 21 shown in FIG. 8 is inserted into the other end of the second connecting tool 20 in which the thick bar-shaped member 23 is inserted. is there.

  As shown in FIGS. 8 and 9, after connecting the thin rod-shaped member 21 to the first connector 10 and connecting the thick rod-shaped member 23 to the second connector 20, next, FIGS. As shown in FIG. 2, the other end (right end in the figure) of the first connector 10 to which the thin bar 21 is inserted and connected is connected to the second connection where the thick bar 23 is inserted and connected. The tool 20 is inserted into the second connector 20 from the other end (the left end in the figure).

  In this insertion, as shown in FIG. 9, since the thick rod-like member 23 is already inserted from the right end portion to the middle, the second connecting member 20 starts from the left end portion of the second connecting member 20. As shown in FIGS. 5 and 6, as shown in FIGS. 5 and 6, the thick rod-shaped member already inserted into the second connector 20 until the right end portion of the first connector 10 reaches the middle of the second connector 20. 23 until the right end of the first connector 10 approaches or abuts the left end of the first connector 10.

  Then, as described above, after the right end portion of the first connector 10 is inserted into the left end portion of the second connector 20, the first screw holes 5a to 5d of the second connector 20 and the second screw holes 5a to 5d. The screw screws 7 are screwed into all of the screw holes 9 a to 9 d, and the tip of each of the screw screws 7 penetrates the peripheral wall portion of the cylindrical member 3 of the second connector 20. The tip of the thigh screw 7 that wants to pass through the first screw holes 5a and 5b and the second screw holes 9a and 9b is in strong contact with the peripheral wall portion of the first connector 10, and the first connector 20 The screw is tightened until the tip of the thigh screw 7 that wants to pass through the screw holes 5c and 5d and the second screw holes 9c and 9d comes into strong contact with the outer peripheral portion of the thick rod-like member 23.

  When each thigh screw 7 is tightened in this way, the right end portion of the first connector 10 is screwed into the screw holes 5a, 5b, 9a, 9b of the second connector 20 to be tightened. The thin rod-like member 21 and the thick rod-like member 23 are end portions through the first connector 10 and the second connector 20 because the tip of the second connector 20 is fixed to the left side portion of the second connector 20. It will be strongly connected with each other.

  As described above, it is possible to strongly connect the two rod-shaped members 21 and 23 having different thicknesses between the end portions by using the two couplers of the first coupler 10 and the second coupler 20. However, since there is no part where the end of the bar-shaped member overlaps as in the conventional case, it is possible to eliminate the waste of the overlapped part, and to make it economical, and the connecting method simply inserts the bar-shaped member. Even then, the screw 7 is simply tightened, and the connection can be made easily and reliably.

  As a result, for example, in the lower part where strength is required in a concrete power pole, or in a place where strength is locally required, a high-strength and expensive large-diameter rod-shaped member is used, and an inexpensive small diameter is used elsewhere. It becomes possible to improve economical efficiency efficiently using this rod-shaped member.

  FIG. 10 is a perspective view showing a connector according to another embodiment of the present invention. The connecting tool 30 shown in FIG. 1 is a complete cylindrical shape having a circular cross section, whereas the connecting tool 1 shown in FIG. The point which formed the flat surfaces 35a and 35b differs, and the other structure and effect | action are the same, The same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

  By forming the flat surfaces 35a and 35b as in the present embodiment, it is possible to prevent the connecting tool 30 from rolling and connect the connecting tools (for example, the connecting tool 10 and the connecting tool 20) as described above. It is also possible to prevent rotation when connected. In addition, even if it uses the connecting tool 30 which has the flat surfaces 35a and 35b in this way, of course, the method of connecting the edge parts of a rod-shaped member, or connecting the rod-shaped member from which thickness differs is the same. That is.

  Moreover, in the said embodiment, several 1st screw hole 5a-5d and 2nd screw hole 9a-9d are along the longitudinal direction of a cylindrical member in the position of two places which opposes in the surrounding wall part of a cylindrical member. However, the present invention is not limited to this. For example, the cylindrical cross section of the cylindrical member is equally divided, for example, equally divided into three, and the cylindrical member is placed on the divided line. A plurality of screw holes may be formed in three rows so as to penetrate the peripheral wall portion of the cylindrical member at a predetermined interval in the longitudinal direction of the cylindrical member. By doing so, the connection of the rod-shaped members can be further strengthened.

1 connector
3 Tubular members 5a to 5d First screw hole 7 Braid screws 9a to 9d Second screw hole 10 First connector 20 Second connector 21 Thin rod member 23 Thick rod member 30 Connectors 35a and 35b Flat Serious aspect

Claims (3)

A cylindrical member, a plurality of first screw holes formed at predetermined intervals in the longitudinal direction of the cylindrical member so as to penetrate the peripheral wall portion of the cylindrical member, and opposed to the plurality of first screw holes A plurality of second screw holes formed at predetermined intervals in the longitudinal direction of the cylindrical member so as to penetrate the peripheral wall portion of the cylindrical member to be formed, and the plurality of first and second screw holes A coupling method using a coupling tool that couples rod-shaped members having different thicknesses using a plurality of coupling tools that are screwed together and have a plurality of screws whose tips extend to the inside of the cylindrical member ,
The inner diameter of the cylindrical member of the first connector is slightly larger than the outer diameter of the cylindrical member of the first rod member or the second connector to be connected, and the cylindrical shape of the second connector is The inner diameter of the member is slightly larger than the outer diameter of the second rod-shaped member to be connected,
Insert the end of the first rod-like member from one end of the first connector of the tubular member,
Fixing the first rod member inserted from one end of the cylindrical member of the first connector with a screw screwed into the first screw hole and the second screw hole;
Insert one end of the tubular member of the second coupling from the other end of the tubular member of the first connector,
Fixing the insertion portion of the second connector with a screw screwed into the first screw hole and the second screw hole of the first connector;
From the other end of the second coupling of the tubular member by inserting the second rod-like member,
Characterized in that the respectively fixed in the second second bar-shaped member the first screw hole and the screw is screwed into the second threaded hole which is inserted from the other end of the tubular member connecting device The connecting method using the connecting tool of the rod-shaped member. The connecting method using the connecting member for a rod-shaped member according to claim 1, wherein the cylindrical member is formed with flat surfaces parallel to each other on an outer peripheral surface along a longitudinal direction. The said screw is a potato screw, The connection method using the connector of the rod-shaped member in any one of Claim 1 thru | or 2 characterized by the above-mentioned.

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