JP3030129U - PC steel stranded wire connector - Google Patents

Abstract

(57) [Abstract] [Purpose] The diameter of the connection part can be reduced and the reliability of the connection can be improved. [Structure] The recess 24 into which the crimp grip 12 can be loosely fitted is formed into the groove 22.
Are continuously provided on the connector main body 16. This recess 24
Are formed at the open and staggered positions of the opposite end faces 16a with respect to the recesses of the adjacent grooves 22 without overlapping in the radial direction. Then, the pair of PC steel strands 14 (B, S) can be connected by sandwiching and fixing the end portion accompanying the fixing of the fixing plate 20 to the end surface 16a.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 This invention is a connecting tool for connecting a pair of PC steel strands extending in opposite directions, in particular, a PC steel strand on the support side, from a base side PC steel with one end fixed to the ground. It relates to a PC steel stranded wire connector that is integrally connected to the end of the wire as a continuous extension.

[0002]

[Prior art]

 For example, PC steel stranded wire (also called strand or simply cable) is provided as an anchor tension material for ground anchor construction. Then, between the pair of PC steel strands extending in opposite directions, for example, the PC steel strand of the support side is connected to the end of the base side PC steel strand fixed at one end to the ground etc. As a connector for integrally connecting as an extension part, a combination of a connector body having a required number of insertion holes through which PC steel strands can be inserted and a wedge fitted in the insertion holes is widely known. There is.

In such a connector, a pair of PC steel stranded wires are inserted into the respective insertion holes from the respective end surface sides of the connector main body, and the PC steel stranded wire is wound around the PC steel stranded wire from the opposite side to the insertion. By fixing each PC strand to the connector body by driving a wedge, it is possible to connect between a pair of corresponding PC strands.

[0004]

[Problems to be solved by the device]

 However, in the known structure in which the PC steel strand is fixed by driving the wedge, the load from the PC steel strand acts on the connector body as a force to expand the insertion hole through the wedge. It is necessary to maintain the rigidity to withstand the load from the PC steel strand by ensuring the wall thickness around the insertion hole. Therefore, it is unavoidable to increase the diameter of the connecting tool for connecting a large number of PC stranded wires, that is, increasing the diameter of the connecting portion.

Therefore, for example, a pair of PC steel strands are connected to each other by individual connecting tools, and the positions of these connecting tools are shifted in the axial direction of the PC steel wires to increase the diameter of the connecting portion. A configuration that suppresses is known. However, in such a configuration, the section in which the connector is arranged becomes long, and therefore the overall size of the connecting portion must be increased.

In addition, in a structure in which a pair of PC steel strands are connected by fitting a wedge into the connector body, wedges are required for the number of PC steel strands to be connected. As the number of points increases, the work tends to become complicated accordingly.

Further, in a structure using a wedge, the wedge may be loosened depending on the conditions such as the degree of external shock acting on the PC steel stranded wire and its connecting portion, and the direction of the shock's action. Conceivable. The looseness of the wedge may cause the PC steel strand to shift relative to the connector body, which may reduce the reliability of the connection.

The present invention aims to provide a PC steel stranded wire connector that enables a connection part to have a smaller diameter and improves the reliability of the connection.

[0009]

[Means for Solving the Problems]

 In order to achieve this object, according to an embodiment of the present invention, a groove into which PC steel stranded wire can be loosely inserted is used as a radial recess having an opening in the peripheral surface so that the penetration between the end surfaces can be prevented. The recesses that are provided at equal intervals on the connector body and that are continuously provided in the groove of the connector body so that the crimp grips fixed to the ends of the PC steel wire can be loosely inserted. It is formed in the connector main body with an opening on the end face different from the extending direction of the PC steel strand to be formed. Note that the recesses of adjacent grooves are formed at depths that allow the ends of the PC steel wire to project at least partially, and are formed at the alternating positions of the opposite end faces that are open, without any overlapping portion in the radial direction. To be done.

Further, a cover member, which is a cylindrical body capable of closing the opening of the groove, is arranged around the connector main body, and a cutting member for loosely inserting the PC steel wire extending from the connector main body is provided. A pair of fixing plates, each having a notch-shaped escape hole and having a diameter that can be engaged with the end of the cover member, is provided at a position facing each end face of the connector main body, and the opening of the recess is reduced. Both are partially covered and arranged. The pair of PC steel strands can be connected by fixing the fixed plate to the connector body, and pinching and fixing the ends under the pressure of the crimping grip to the connector body. Has become.

[0011]

[Embodiment of device]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the PC steel stranded wire connecting device 10 according to the present invention has a support side PC steel stranded wire fixed by fixing each end portion provided with a crimp grip 12. The 14 (S) is configured to be integrally connectable to the end of the base side PC steel strand 14 (B) whose one end is fixed to the ground as a continuous extension.

The crimp grip 12 is formed, for example, as a thick-walled tubular body, and can be integrally fixed to the PC steel strand 14 (B, S) by inserting and compressing the end portion inside. There is. Such a crimp grip is known, and the structure itself of the crimp grip and the PC steel strand itself having this crimp grip at the end are not the purpose of this invention, and therefore will not be described in detail here. Since the crimp grip 12 can be crimped without requiring large equipment, it can be easily fixed to the end of the PC stranded wire (B, S) at both the factory and the work site.

As can be seen from FIG. 3 in addition to FIGS. 1 and 2, in an embodiment of the present invention, a substantially columnar connector main body 16 and a cover member 18 serving as a tubular body are provided. The connector 10 is configured by including a pair of fixing plates 20 arranged and fixed so as to face the end surface 16a of the connector main body.

As can be seen from FIG. 4 in addition to FIG. 3, the connector body 16 is formed with a groove 22 into which the PC steel strand 14 (B, S) can be loosely inserted. The groove 22 is a radial recess having an opening on the peripheral surface of the connector body 16 and is a number corresponding to the PC steel strand 14 (B, S) to be inserted under the penetration between the end surfaces 16a. However, they are provided at equal intervals.

In this embodiment, for example, the PC steel strands 14 (B, S) on the base side and the support side are each set to four, and the PC strands between the four wires can be connected to each other by a connecting tool. 10 are formed. That is, in this embodiment, a total of eight grooves 22 are provided in the connector main body 16 (see FIG. 3).

As shown in FIG. 2, in this connector 10, the PC steel strands 14 (B, S) on the base side and the support side are alternately arranged in the groove 22 of the connector body. Arranged and inserted. As can be seen from FIGS. 1 to 3, the recess 24 that allows the press-fitting grip 12 to be loosely fitted from the end face side is formed from the PC steel to be inserted in the end face 16a of the connector body. The line 14 (B, S) is provided continuously with the groove at a position having an opening on the end face different from the extending direction, that is, at an alternate position where the end face opposite to the recess of the adjacent groove 22 is opened. ing.

The recess 24 is deep enough to partially project the end of the PC steel strand 14 (B, S) from the end face 16 a of the connector body, for example, the PC steel projecting from the crimp grip 12. It is formed to a depth such that the line end 14a is projected.

In such a connecting tool 10, the PC steel stranded wire 14 (B, S) is pulled and tensioned by the engagement of the crimp grip 12 with the groove 22 and the step 26 between the step 24. Due to the load caused by the, the PC steel wires on the base side and the support side are connected in a non-separable manner while preventing the separation in the extension direction.

Here, in the present invention, the recesses 24 of the adjacent grooves are arranged so as not to overlap in the radial direction of the connector main body 16. That is, as shown in FIG. 1, the connector main body 16 is formed to have a length in which the recessed portions 24 of the opposite end surfaces 16a which are opened are separated from each other by a predetermined distance L in the axial direction.

In such a configuration, the load is applied to the periphery of the step 26 that receives the load from the PC steel strand 14 (B, S), particularly to the portion along the extending direction of the corresponding PC steel strand. Since the wall thickness sufficient to withstand it can be secured, the rigidity of the connector body is kept high (see Fig. 2).

Then, as shown in FIGS. 1 to 4, in the present invention, when the cover member 18, which is a cylindrical body capable of closing the opening of the groove 22, is provided around the connector body 16. At the same time, a pair of substantially disc-shaped fixing plates 20 are arranged and fixed at positions facing the end surface 16a of the connector body.

As can be seen from FIGS. 1 and 4, the fixing plate 20 is formed with a diameter capable of engaging with the end of the cover member 18. That is, the holding of the fixing plate 20 with respect to the end surface 16a of the connector body prevents the cover member 18 from being detached from the periphery of the connector body.

Since the cover member 18 is arranged to cover the opening of the groove 22 on the peripheral surface of the connector main body 16, the PC steel strand 14 (B, S) can be removed from the opening, that is, the groove. It is surely blocked.

Further, as shown in FIGS. 1 to 4, the fixing plate 20 has a shape that at least partially covers the opening of the recess 24 provided in the corresponding end surface 16a, that is, the PC steel protruding from the recess. A notch shape that allows the end of the wire 14 (B, S), for example, the end 14a of the PC steel wire to be pressably engaged, and allows the PC steel wire extending from the connector body to be loosely inserted. It is formed with a corresponding number of escape holes 28.

As shown in FIGS. 1 and 3, the fixing plate 20 is fixed to the facing end surfaces 16a of the connector body by, for example, screwing a bolt 30. When the fixing plate 20 is fixed to the connector body 16 in this manner, as shown in FIG. 1, the portion protruding from the recess 24, that is, the end 14a of the PC steel strand is pressed by the fixing plate and crimped. The grip 12 is pressed against the step 26. In other words, in this connection tool 10, by sandwiching and fixing the ends of the PC steel strand 14 (B, S) between the stepped portion 26 and the fixing plate 20, the PC steel strand of the base side and the support side can be secured. The spaces are connectable.

As described above, in the PC steel stranded wire connecting device 10 of the present invention, the PC steel stranded wire is connected by the engagement of the crimping grip 12 to the stepped portion 26 and the pressing of the end 14 a by the fixing plate 20. Since the wires 14 (B, S) are fixed to the connector main body 16, the load caused by pulling, tension, etc. of the PC steel wire does not act around the groove 22 and the PC steel wire is extended. It is given to the step in the outgoing direction.

That is, according to the present invention, the rigidity of the PC steel stranded wire 14 (B, S) that resists the load caused by the pulling, tension, etc. of the PC steel wire is connected without having a large thickness around the groove 22. Since it can be secured in the tool body 16 and by extension in the connection tool 10, the diameter of the connection tool can be sufficiently reduced.

In the connector 10, since the recesses 24 of the adjacent grooves are arranged apart from each other by the predetermined distance L, the pulling and tension of the PC steel strand 14 (B, S) is caused. The wall thickness in the acting direction of the load can be sufficiently secured around the stepped portion 26. Therefore, the rigidity of the connector 10 does not decrease due to the reduction of the diameter of the connector 10, and the safety of the connector can be kept high even when the diameter of the connector is reduced.

Furthermore, the connecting tool 10 only needs to have a length such that the recesses 24 of the adjacent grooves do not overlap in the radial direction of the connecting tool body 16, so that the range of the connecting portion can be sufficiently suppressed. Therefore, the connection tool 10 can sufficiently reduce the diameter of the connection portion without extending the range.

In addition, in the configuration of the present invention in which the PC steel stranded wire 14 (B, S) is connected by engaging and fixing the crimp grip 12, in the configuration of the present invention, the load caused by the traction, tension, etc. of the PC steel stranded wire is PC. Since it does not act so much in the radial direction from the steel twisted wire, it is possible to use the groove 22 instead of the hole for the insertion position to the connector main body 16. That is, since the PC steel strand 14 (B, S) can be inserted into the groove 22 through the opening on the peripheral surface of the connector main body 16, workability at that time is surely improved.

Since the crimp grip 12 can be crimped both at the factory and at the work site, compared to the mounting of the wedge, which is limited to work only at the site, the PC steel stranded wire 14 (B, The connection work between S) will be easy, and it will be possible to easily respond to changes in the work plan at the work site.

Furthermore, according to the connector 10 of the present invention, the cover member 18 covers the opening of the groove 22 of the connector body, and the end of the PC steel strand 14 (B, S) is pressed by the fixing plate 20. Since the portion is fixed to the connector main body 16, it is possible to reliably prevent the loosening of the PC steel stranded wire, the falling off due to the action of external shock, and the like. Therefore, the reliability of the connection between the PC steel strands 14 (B, S) is improved.

In this embodiment, the terminal 14a of the PC stranded wire is projected from the recess 24, and the terminal is pressed by the fixing plate 20. However, in the fixed plate, Since it is sufficient if the crimp grip 12 can be pressed against the stepped portion 26 under pressure, the present invention is not limited to this.For example, even if the fixing plate directly presses the opposing end surfaces of the crimp grip, It goes without saying that the same effect can be obtained.

Further, by providing the notch-shaped escape hole 28 in the fixing plate 20, it becomes possible to insert the PC steel stranded wire 14 (B, S) from the peripheral edge of the fixing plate, so that the connecting tool body 16 and Similarly, the workability of disposing the fixing plate is improved.

Here, in this embodiment, a configuration in which the fixing plate 20 is fixed to the connector main body 16 with the bolt 30 is illustrated, but if the fixing plate can be fixed to the connector main body. However, the present invention is not limited to this, and the fixing plate may be fixed to the connector body by other means. However, if the fixing plate 20 is fixed with the bolt 30, the position of the fixing plate with respect to the end surface 16a of the connector body can be adjusted appropriately depending on the degree of screwing of the bolt, so that the ends of the PC steel strands 14 (B, S) can be adjusted. The part can be securely fixed to the connector main body 16.

Further, in the embodiment of the present invention, the cover member 18 is arranged around the connector main body 16, but the present invention is not limited to this, and the connector 10 may be omitted by omitting the cover member, for example. You may comprise. Even in such a configuration, since the ends of the PC steel stranded wire 14 (B, S) are fixed by being sandwiched between the stepped portion 26 and the fixing plate 20, the PC steel stranded wire from the connector 10 is fixed. Will surely be prevented from dropping.

However, if the cover member 18 is arranged around the connector main body 16, the cover member closes the opening of the groove 22 of the connector main body, so that the PC steel stranded wire 14 (B, S) is not loosened or loosened. It is possible to reliably prevent the PC strand from falling out of the groove due to the action of external shock. Therefore, by disposing the cover member 18 around the connector main body 16, the reliability of the connection between the PC steel strands 14 (B, S) is further improved.

Further, FIGS. 5 to 7 show another embodiment of the present invention. In this PC steel stranded wire connector 110, a pair of cover members 118-1 and 118-2 have an inner flange 118a, which is at least partially engageable with the opposite end surfaces of the crimp grip 12, at one end. The groove 22 has a substantially tubular shape and is formed so as to be able to close the opening of the groove 22 under the arrangement around the connector main body 16.

In this connector 110 as well, the connector body 116 is formed with the groove 22 having an opening on the peripheral surface, and the recess 24 having an opening on the end surface 116a of the connector body has a groove adjacent to the adjacent groove. The staggered positions are continuously provided in the groove.

Here, in the connector 110, the recess 24 is formed to a depth such that the crimp grip 12 at least partially protrudes from the end surface 116a of the connector body, and the connector body from the end surface side is formed. The pair of cover members 118-1 and 118-2 around the 116 and the engagement and pressing of the opposite end surfaces of the crimp grip with the inner flange 118a of the cover member due to the connection between the opposite ends. The crimp grip can be pressed against the step portion 26 between the groove 22 and the recess.

The pair of cover members 118-1 and 118-2 are respectively formed with, for example, a pair of external threads 32 and 34 at the opposite ends, and the inter-threads due to the engagement between the external threads and the internal threads. It can be fixed to the connector body by connecting the.

In the connector 110 having such a structure, the pair of PC steel strands 14 (B, S) and the crimp grip 12 are inserted into the groove 22 and the recess 24 of the connector body, respectively. Since the ends of the connector are connected to each other, the diameter of the connecting tool can be reduced as in the above-described embodiment. Then, the pair of cover members 118-1 and 118-2 are arranged around the connector main body 116, and by pressing the crimp grip 12 by the inner flange 118a of the cover member, the PC steel stranded wire 14 (B, S) is formed. Since the end portion of the connector is fixed, the effect similar to that of the above-described embodiment, that is, the reliability of the connection between the PC steel strands is improved, can be sufficiently ensured also in the connector 110.

In addition, in the connector 110, the opening and closing of the groove 22 of the connector body and the pressing of the crimp grip 12 are performed by connecting and fixing the pair of cover members 118-1 and 118-2. Therefore, a fixing plate for fixing the ends of the PC steel strands 14 (B, S), a bolt for fixing the fixing plate to the connector main body 116, and the like can be omitted. That is, according to the connector 110, the number of parts can be reduced, so that the configuration can be simplified and the workability can be easily improved.

In this embodiment, the pair of cover members 118-1 and 118-2 can be connected and fixed by screwing the male screw 32 and the female screw 34 together. Since it suffices that the two parts can be connected to each other, the combination is not limited to the combination of the male screw and the female screw, and other means such as a set screw or a hook can be used to connect and fix the pair of cover members. Good. However, according to the combination of the male thread 32 and the female thread 34, the position of the inner flange 118a with respect to the end surface 116a of the connector body can be appropriately adjusted depending on the degree of screwing between them. The reliability of fixing the ends of the stranded wires 14 (B, S) is improved.

8 and 9 show another embodiment of the present invention. In this PC steel stranded wire connector 210, the PC steel stranded wire 14 (B, S) can be fixed to the connector main body 216 only by pressing the terminal 14a with the fixing plate 20.

In this connector 210, the connector main body 216 is formed with only the groove 22 into which the PC steel strand 14 (B, S) can be loosely inserted. Then, the pair of fixing plates 20 provided with the notch-shaped escape holes 28 are arranged so as to face the end surface 216a of the connector main body 216, respectively.

As shown in FIG. 8, in the connector 210, the crimp grip 12 is interposed between the connector body 216 and the fixed plate 20. Then, by fixing the fixing plate 20 with the bolts 230, the ends of the PC stranded wire 14 (B, S), for example, the ends 14a of the PC stranded wire, are pressed, and the opposite end faces of the connector main body 216 are pressed. The connector 210 is configured so that the end of the PC steel strand is fixed to the connector body under the pressing of the crimp grip 12 to the connector 216a.

In the connection tool 210 having such a configuration, it is sufficient to provide the grooves 22 having an open peripheral surface in the connection tool main body 216 at equal intervals, and the pulling of the PC steel stranded wire 14 (B, S) is possible. Since the load caused by the tension acts on the connector body in the axial direction, the rigidity of the connector body and eventually the connector does not decrease even when the diameter is reduced.

Then, by clamping the crimp grip 12 between the connector body 216 and the fixing plate 20, the ends of the PC steel strand 14 (B, S) are fixed to the connector body, A high degree of reliability of the connection between the PC steel wires can be sufficiently ensured even in this configuration.

That is, also in the connector 210 of this embodiment, the same effects as those of the above-described embodiments can be sufficiently obtained.

In the embodiment of the present invention, each of the four PC steel stranded wires 14 (B, S) is connected to each other, but the number of PC steel stranded wires is not limited. Is not limited to this. In the connector of the present invention, it is sufficient to form the groove of the connector main body and the escape hole of the fixing plate according to the number of PC steel strands to be connected. It can be easily applied to the connection of various numbers of PC steel strands without incurring.

The embodiments of the invention described above are for explaining the invention, and are not intended to limit the invention in any way, and modifications and alterations are made within the technical scope of the invention. Needless to say, all are included in this invention.

[0054]

[Effect of device]

 As described above, according to the PC steel stranded wire connection device of the present invention, the wall thickness around the groove does not significantly affect the rigidity of the connection device itself. The diameter can be sufficiently reduced.

In this connector, a sufficient wall thickness can be secured between the crimp grips arranged in an alternating manner, and this wall thickness resists the load caused by the traction, tension, etc. of the PC steel strand. Since only the rigidity of the connector is obtained in the connector main body, the rigidity of the connector is not lowered due to the smaller diameter of the connector, and the safety of the connector can be maintained high.

Further, it is sufficient if the length between the recesses of the adjacent grooves does not overlap in the radial direction of the connector main body, so that the range of the connection portion can be sufficiently suppressed. Therefore, according to this connecting tool, the diameter of the connecting portion can be sufficiently reduced without extending the range.

Furthermore, since the pair of PC steel wires are connected with each other while being clamped and fixed by using the crimp grips provided at the ends, the PC steel wires are loosened or caused by an external shock. It is possible to surely prevent falling off. Therefore, the certainty of the connection between the PC steel wires is improved.

Since the crimp grip can be crimped both at the factory and at the work site, the connection work between the PC steel strands becomes easy, and the work plan at the work site can be changed. Correspondence becomes possible easily.

Further, by disposing the cover member around the connector main body, the cover member can close the opening of the groove of the connector main body, so that the looseness of the PC steel wire and the action of external shock can be caused. It is possible to reliably prevent the PC stranded wire from falling out of the groove due to factors such as the above, and further improve the reliability of the connection between the PC stranded wires.

[Brief description of drawings]

1 is a cross-sectional view of a PC steel strand connector according to an embodiment of the present invention taken along line AA of FIG.

FIG. 2 Shown in FIG. 1 in a connected state between PC steel strands
FIG. 3 is a schematic perspective view of a PC steel strand connecting tool.

FIG. 3 is a schematic exploded perspective view of the PC steel strand connecting tool shown in FIG.

[Fig. 4] Fig. 1 shows the connection state between PC steel strands.
It is a front view of a PC steel strand connection tool.

FIG. 5 is a sectional view similar to FIG. 1, of a PC steel strand connector according to another embodiment of the present invention.

FIG. 6 is a schematic exploded perspective view of the PC steel strand connector shown in FIG.

FIG. 7: Shown in FIG. 5 in the connection state between PC steel strands
It is a front view of a PC steel strand connection tool.

FIG. 8 is a sectional view similar to FIG. 1, of a PC steel strand connector according to yet another embodiment of the present invention.

9 is a schematic exploded perspective view of a PC steel strand connecting tool shown in FIG. 8. FIG.

[Explanation of symbols]

 10, 110, 210 PC steel strand connector 12 Crimping grip 14 (B, S) Base side, support side PC steel strand 14a PC steel strand end 16,216 Connector body 18,118-1, 118-2 Cover member 118a Inner flange of cover member 20 Fixing plate 22 Groove 24 Recess 26 Step section 28 Fixing plate relief hole

Claims (4)

[Scope of utility model registration request] 1. A connector for connecting a pair of PC steel wires extending in opposite directions, wherein a groove into which a PC steel wire can be loosely inserted serves as a radial recess having an opening on a circumferential surface. Under the penetration between the end faces, it is provided in the connector body at equal intervals and the crimp grips fixed to the ends of the PC steel strands can be loosely fitted continuously in the groove of the connector body. The provided recess is formed in the connector main body with an opening on the end face different from the extending direction of the PC steel strand to be inserted, and the recesses of adjacent grooves form at least the end of the PC steel strand. The cover member, which is formed as a cylindrical body that can be closed at the opening of the groove, is formed at each of the depths at which it partially protrudes, at different positions where the opposite end faces are opened, without any overlapping portion in the radial direction. PC steel that is placed around the tool body and extends from the tool body. Positions where a pair of fixing plates, each having a notch-shaped escape hole for allowing the wire to be loosely inserted and having a diameter engageable with the end of the cover member, face each end surface of the connector body. At least partially covering the opening of the recess, fixing the fixing plate to the connector body, and holding the end portion under the pressure of the crimp grip to the connector body, A PC steel stranded wire connector characterized in that a pair of PC stranded wires can be connected by fixing. 2. A connector for connecting a pair of PC steel strands extending in opposite directions, wherein a groove into which the PC steel strand can be loosely inserted serves as a radial recess having an opening on the circumferential surface. Under the penetration between the end faces, it is provided in the connector body at equal intervals and the crimp grips fixed to the ends of the PC steel strands can be loosely fitted continuously in the groove of the connector body. The provided recess is formed in the connector main body with an opening on the end face different from the extending direction of the PC steel strand to be inserted, and the recesses of adjacent grooves form at least the end of the PC steel strand. Partially protruding, provided at alternate positions where the opposite end faces are opened and at alternate positions without any overlapping portion in the radial direction and extending from the connector body.
A pair of fixing plates provided with a notch-shaped escape hole for allowing the PC stranded wire to be loosely inserted are formed so as to be at least partially engageable with either the end of the PC stranded wire or the crimp grip. , The fixing plate is arranged at a position facing each end surface of the connector body, and the fixing plate is fixed to the connector body, and the end portion is clamped and fixed under the accompanying pressing of the crimp grip to the connector body. A PC steel stranded wire connecting device characterized in that a pair of PC steel stranded wires can be connected to each other. 3. A connector for connecting a pair of PC steel strands extending in opposite directions to each other, wherein a groove into which a PC steel strand can be loosely inserted serves as a radial recess having an opening on a peripheral surface. Under the penetration between the end faces, it is provided in the connector body at equal intervals and the crimp grips fixed to the ends of the PC steel strands can be loosely fitted continuously in the groove of the connector body. The provided recess is formed with an opening in the end face different from the extending direction of the PC steel strand to be inserted, and the recess of the adjacent groove has a depth at which the crimp grip at least partially protrudes, They are formed at the open and staggered positions of the opposite end faces, respectively, without any overlapping portion in the radial direction, and integrally have an inner flange at one end that can at least partially engage with the opposite end face of the crimp grip. The pair of substantially cylindrical cover members is a connecting tool book. Under the pressing of the crimp grip against the connector body by the inner flange, which is formed so that the opening of the groove can be closed under the arrangement around the A PC steel stranded wire connector characterized in that a pair of PC steel stranded wires can be connected by clamping and fixing the ends at 4. A connector for connecting between a pair of PC steel strands extending in opposite directions, wherein a groove into which the PC steel strand can be loosely inserted serves as a radial recess having an opening on the circumferential surface. Under the penetration between the end faces, the connector body was provided at equal intervals, and a notch-shaped escape hole was provided to allow the PC steel wire extending from the connector body to be loosely inserted. A pair of fixing plates are formed so as to be at least partially engageable with either the ends of the PC steel wire or the crimp grips, and are arranged at positions facing the respective end faces of the connector body. It is characterized in that it is possible to connect between a pair of PC steel wires by fixing the fixing plate to the wire and pinching and fixing the end portion under the pressure of the crimping grip to the connector body. PC steel stranded wire connector.