JP2003301561A - Reinforcement joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement joint capable of efficiently and surely connecting reinforcements to each other at site with a simple structure. <P>SOLUTION: This reinforcement joint 1 comprises a receiving member 2 having a receiving part 4 for receiving a reinforcement R formed thereon and a fixing member 3 having U-bolts 10 and nuts 11 fixable to the receiving member 4 across the reinforcement R received by the receiving part 4. By using this reinforcement joint 1, with the simple structure formed of the receiving member 2 and the fixing member 3, the reinforcements can be efficiently and surely connected to each other at site without machining the reinforcements R beforehand. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a reinforcing bar joint,
Specifically, it relates to a reinforcing bar joint for connecting reinforcing bars at a construction site.

[0002]

2. Description of the Related Art Conventionally, various methods such as lap joint, gas pressure welding, welding, and mechanical joint have been known as a method for connecting reinforcing bars in a construction site such as a reinforced concrete building.

Of these, the mechanical joint is, for example, a cylindrical coupler in which female threads are formed on the inner peripheral surface by crimping male threads to the ends of the reinforcing bars to be connected to each other. Screw the male screws together, and then press the lock nuts that are screwed into each male screw into the coupler, or insert the ends of the rebars that are connected to each other, stack them on the cylindrical sleeve, and insert the wedge into the sleeve. By press fitting,
It is known to fix these reinforcing bars in a sleeve.

[0004]

However, in the method of screwing both ends of the reinforcing bar to the coupler, it is necessary to crimp the male screw to the end of each reinforcing bar in advance. It is necessary to prepare the rebar in advance, therefore,
There is a problem that it cannot be cut into arbitrary lengths at the construction site.

Further, in the method of fixing both end portions of the reinforcing bar in the sleeve, since the wedge is press-fitted, the joining is unstable, and a hydraulic tool or the like for press-fitting the wedge is required, resulting in good work efficiency. There is a problem that it does not exist.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a reinforcing bar joint which can connect reinforcing bars reliably and efficiently in the field with a simple structure. To do.

[0007]

In order to achieve the above object, the invention according to claim 1 straddles a receiving member having a receiving portion for receiving a reinforcing bar and a reinforcing bar received by the receiving section. And a fixing member that can be fixed to the receiving member.

According to this structure, the end of each rebar to be connected is arranged in the receiving portion of the receiving member, and the fixing member is received across the end of each rebar received in the receiving portion. If fixed to the member, the end of each rebar can be fixed to the receiving portion by the fixing member, and as a result, the end of each rebar can be connected via the rebar joint. Therefore, with a simple structure including only the receiving member and the fixing member, it is possible to surely connect the worksite efficiently and efficiently without processing the reinforcing bar in advance.

The invention described in claim 2 is the same as claim 1.
In the invention described in (3), a plurality of the fixing members are provided.

According to this structure, the ends of the reinforcing bars to be connected can be more reliably fixed by the plurality of fixing members.

The invention described in claim 3 is the same as claim 1.
Alternatively, the fixing member may be selectively fixed to the receiving member in a direction orthogonal to the longitudinal direction of the receiving portion and in a direction along the longitudinal direction of the receiving portion. It is characterized by

According to this structure, for example, the end portions of the respective reinforcing bars are arranged in the receiving portion along the longitudinal direction of the receiving portion, and the fixing member is received from the direction orthogonal to the longitudinal direction of the receiving portion. If the end portions of the reinforcing bars received by the parts are straddled and fixed to the receiving member, the reinforcing bars can be reliably connected in the same direction. In addition, one reinforcing bar is arranged in the receiving part along the longitudinal direction of the receiving part, and the other reinforcing bar is arranged in a direction orthogonal to the longitudinal direction of the receiving part, and the fixing member is arranged in the longitudinal direction of the receiving part. By fixing the other reinforcing bar received by the receiving portion to the receiving member while straddling the other reinforcing bar from the direction along the line, each reinforcing bar can be fixed in a cross shape. Therefore, 1
The two rebar joints make it possible to achieve the connection of the rebars in the same direction and the crosswise fixing of the rebars.

The invention according to claim 4 is the same as claim 1.
The invention according to any one of items 1 to 3 is characterized in that the receiving member is provided with a guide portion for guiding the reinforcing bar.

According to this structure, the guide portion guides the connecting direction or the fixing direction of each reinforcing bar to reliably position each reinforcing bar, so that reliable bar arrangement can be achieved.

[0015]

1 is an exploded perspective view showing an embodiment of a reinforcing bar joint of the present invention, FIG. 2 is a plan view of a receiving member of the reinforcing bar joint shown in FIG. 1, and FIG. FIG. 7 is a front view showing a state where the fixing member is assembled to the receiving member in the reinforcing bar joint shown. 1 to 3, this rebar joint 1
Will be described.

1 to 3, this rebar joint 1
Includes a receiving member 2 and a fixing member 3.

The receiving member 2 is made of steel and has a substantially rectangular flat plate-shaped receiving portion 4 extending in the longitudinal direction, and a plurality of (eight) inserting portions for inserting the U bolts 10 of the fixing member 3 described below. The part 5 and a plurality of (six) guide parts 6 for guiding the reinforcing bars are integrally formed.

In the receiving portion 4, a receiving surface 7 for receiving the reinforcing bar R is formed in a substantially arcuate shape at a substantially central portion in the width direction along the longitudinal direction. On the receiving surface 7, a plurality of ridges 8 for imparting frictional resistance to the received reinforcing bar R are formed at predetermined intervals in an inclined shape with respect to the longitudinal direction of the receiving portion 4.

As shown in FIG. 2, the insertion portions 5 oppose each other across the receiving surface 7 in the widthwise both ends of the receiving portion 4 in the direction orthogonal to the longitudinal direction of the receiving portion 4 and. In the longitudinal direction of the portion 4, they are provided at substantially the same distance as the facing distance facing each other across the receiving surface 7.

More specifically, a pair of insertion portions 5 facing each other with the receiving surface 7 sandwiched therebetween are arranged at both end portions in the longitudinal direction of the receiving portion 4, and more than at both end portions in the longitudinal direction of the receiving portion 4. Each is arranged inside (that is, four pairs of (two) insertion parts 5 are arranged along the longitudinal direction of the receiving part 4).

Further, each insertion portion 5 is formed so as to bulge in an arc shape from the end portion in the width direction of the receiving portion 4, and an insertion hole 9 penetrating in the thickness direction is formed in the central portion thereof. Has been done. The insertion holes 9 are arranged such that the pitch of the insertion holes 9 facing each other with the receiving surface 7 interposed therebetween and the pitch of the insertion holes 9 adjacent to each other in the longitudinal direction of the receiving portion 4 are substantially equal. . Moreover, the hole diameter of each insertion hole 9 is formed to be slightly larger than the outer diameter of the straight rod portion 12 of the U bolt 10 described later.

Each guide portion 6 is a receiving surface 7 at both ends in the longitudinal direction of the receiving portion 4 and outside each insertion hole 9.
(4) are arranged so as to face each other across the receiving portion 4, and at the center of the receiving portion 4 in the longitudinal direction, inside the respective insertion portions 5 arranged inside the receiving portion 4 in the longitudinal direction, They are arranged diagonally (two) with the surface 7 in between.

Further, each guide portion 6 is formed so as to protrude from the receiving portion 4 in a substantially truncated cone shape, and the base end portion on the side continuous with the receiving surface 7 is formed on the receiving surface 7 as shown in FIG. It is curved so that the skirt gradually expands toward it.

The fixing member 3 is provided with a U bolt 10 and a nut 11 as shown in FIG. U bolt 10
Is made of steel and has a predetermined interval (that is, each insertion hole 9
A substantially U-shaped body in which two straight rod portions 12 that extend in parallel with each other at an interval corresponding to the pitch) and a curved rod portion 13 that connects the base end portions of the two straight rod portions 12 are integrally formed. The straight rod portion 12 is formed of a V-shaped bolt, and a male screw is formed on at least the free end portion of each straight rod portion 12. Further, the nut 11 is formed so that it can be screwed into a male screw formed on each of the straight rod portions 12.

As shown in FIGS. 1 and 3, the fixing member 3 receives the U-bolt 10 from the direction orthogonal to the longitudinal direction of the receiving portion 4 along the longitudinal direction of the receiving portion 4 to the receiving surface 7.
The free ends of the straight rod portions 12 inserted into the insertion holes 9 are inserted into the insertion holes 9 of the insertion portions 5 facing each other with the receiving surface 7 interposed therebetween so as to straddle the reinforcing bar R received by the insertion holes 9. It is fixed to the receiving member 2 by screwing the nut 11 from the portion.

As a result, the receiving portion 4 will be described in detail later.
The reinforcing bars R arranged on the receiving surface 7 along the longitudinal direction of can be fixed by the U bolts 11 fixed to the receiving member 2 from the direction orthogonal to the longitudinal direction of the receiving portion 4.

Although only one fixing member 3 is shown in FIG. 1, in actuality, it corresponds to a pair of insertion holes 9 that face each other with the receiving surface 7 in between (four in total). ) Is prepared (see FIG. 8).

Further, in the receiving member 2, the pitch of the through holes 9 facing each other with the receiving surface 7 sandwiched therebetween and the pitch of the through holes 9 adjacent to each other in the longitudinal direction of the receiving portion 4 are substantially equal to each other. For example, shown in phantom in FIG.
Further, as shown in FIG. 10, while arranging one rebar R on the receiving surface 7 along the longitudinal direction of the receiving portion 4,
The other reinforcing bar R is arranged in a direction orthogonal to the longitudinal direction of the receiving portion 4, and the U bolt 10 is arranged in a direction orthogonal to the longitudinal direction of the receiving portion 4 from a direction along the longitudinal direction of the receiving portion 4. The nuts are inserted from the free end portions of the straight rod portions 12 inserted into the insertion holes 9 into the insertion holes 9 of the insertion portions 5 adjacent to each other in the longitudinal direction of the receiving portion 4 so as to straddle the reinforcing bar R. By screwing 11 together, the fixing member 3 and the receiving member 2
It can also be fixed to.

As a result, the receiving portion 4 will be described in detail later.
One rebar R arranged on the receiving surface 7 along the longitudinal direction of the
And the other rebar R arranged in the direction orthogonal to the longitudinal direction of the receiving portion 4 can be fixed by the U bolts 11 fixed to the receiving member 2 from the direction along the longitudinal direction of the receiving portion 4. .

FIG. 4 is an exploded perspective view showing another embodiment of the reinforcing bar joint of the present invention, FIG. 5 is a plan view of the receiving member of the reinforcing bar joint shown in FIG. 4, and FIG. 6 is shown in FIG. It is a front view showing the state where the fixed member was assembled to the receiving member in the reinforcing bar joint. Next, the reinforcing bar joint 21 will be described with reference to FIGS. 4 to 6.

4 to 6, this rebar joint 2
1 includes a receiving member 22 and a fixing member 23.

The receiving member 22 is made of steel, and a plurality of (four) receiving members 24 of substantially rectangular flat plate shape extending in the longitudinal direction and U bolts 30 of the fixing member 23 described below are inserted.
The insertion portion 25 and a plurality of (four) guide portions 26 for guiding the reinforcing bars are integrally formed.

In the receiving portion 24, a receiving surface 27 for receiving the reinforcing bar R is formed in a substantially central portion in the width direction along the longitudinal direction so as to be recessed in a substantially arcuate shape as in the above. Further, on the receiving surface 27, the protrusion 28 for giving frictional resistance to the received reinforcing bar R is provided with the receiving portion 24 in the same manner as described above.
Are formed in a slanted manner with respect to the longitudinal direction thereof at predetermined intervals.

As shown in FIG. 5, the insertion portions 25 oppose each other across the receiving surface 27 in the widthwise both ends of the receiving portion 24 in the direction orthogonal to the longitudinal direction of the receiving portion 24, and the receiving portions 25. At both ends in the longitudinal direction of the portion 24, they are provided at the four corners of the receiving portion 24 at an interval substantially the same as the facing distance facing each other across the receiving surface 27 in the longitudinal direction of the receiving portion 24.

More specifically, a pair of insertion portions 25 facing each other with the receiving surface 27 sandwiched therebetween are arranged at both ends in the longitudinal direction of the receiving portion 24 (that is, one pair (two) insertion portions 25).
, But two sets are arranged at both ends in the longitudinal direction of the receiving portion 24).

Further, each of the insertion portions 25 is formed so as to bulge in an arc shape from the end portion in the width direction of the receiving portion 24, and the center portion thereof penetrates in the thickness direction, similarly to the above. An insertion hole 29 is formed. Each insertion hole 29 has a receiving portion 24.
At both ends in the width direction of the insertion holes 29 facing each other with the receiving surface 27 interposed therebetween, and at both ends in the longitudinal direction of the receiving portion 24, pitches of the insertion holes 29 adjacent to each other in the longitudinal direction of the receiving portion 24. Are arranged so that and are almost equal. In addition, the hole diameter of each insertion hole 29 is formed to be slightly larger than the outer diameter of the straight rod portion 32 of the U bolt 30, which will be described later, similarly to the above.

The guide portions 26 are provided at four corners (4) of the receiving portion 24 at both ends in the longitudinal direction of the receiving portion 24 and outside the respective insertion holes 29 so as to face each other with the receiving surface 7 interposed therebetween. One) is arranged.

Further, each guide portion 26 is similar to the above.
As shown in FIG. 6, the base end portion, which is formed to project from the receiving portion 24 in a substantially truncated cone shape and is continuous with the receiving surface 27, is
It is curved so that the skirt gradually expands toward the receiving surface 27.

As shown in FIG. 4, the fixing member 23 has a U bolt 30 and a nut 31. U bolt 30
Is made of steel, and similarly to the above, two straight rod portions 32 extending in parallel with each other with a predetermined gap (that is, a gap corresponding to the pitch between the insertion holes 29) and the two straight rods. Part 3
The curved rod portion 33 connecting the two base end portions is integrally formed of a substantially U-shaped bolt, and each straight rod portion 32 is formed with a male screw at least at its free end portion. The nut 31 is made of steel and is formed so that it can be screwed into a male screw formed on each of the straight rod portions 32.

The fixing member 23 has the same structure as that shown in FIGS.
As shown in FIG. 5, the U-bolt 30 extends from the direction orthogonal to the longitudinal direction of the receiving portion 24 to the reinforcing bar R received by the receiving surface 27 along the longitudinal direction of the receiving portion 24, and It is fixed to the receiving member 22 by inserting it into the insertion hole 29 of each insertion portion 25 that is sandwiched and opposed, and then screwing the nut 31 from the free end portion of each straight rod portion 32 inserted into each insertion hole 29. To be done.

As a result, the receiving portion 2 will be described in detail later.
Reinforcing bar R arranged on the receiving surface 27 along the longitudinal direction of No. 4
Can be fixed by the U bolts 31 fixed to the receiving member 22 in a direction orthogonal to the longitudinal direction of the receiving portion 24.

Although only one fixing member 23 is shown in FIG. 4, in actuality, it corresponds to a pair of insertion holes 29 that face each other with the receiving surface 27 in between (two in total). )
It is prepared (see FIG. 10).

Further, in the receiving member 22, the receiving surface 27
The pitch of the insertion holes 29 facing each other across the insertion hole 29 and the insertion holes 29 adjacent to each other in the longitudinal direction of the receiving portion 24.
Since the pitch is substantially the same, the reinforcing bar R is arranged on the receiving surface 27 along the longitudinal direction of the receiving portion 24, as shown by an imaginary line in FIG. 4 and with reference to FIG. At the same time, the other reinforcing bar R is arranged in a direction orthogonal to the longitudinal direction of the receiving portion 24, and the U bolt 30 is attached to the receiving portion 24.
From the direction along the longitudinal direction of the receiving portion 24 so as to straddle the reinforcing bars R arranged in the direction orthogonal to the longitudinal direction of the receiving portion 24, and are inserted into the insertion holes 29 of the respective insertion portions 25 adjacent in the longitudinal direction of the receiving portion 24. After that, the fixing member 23 can be fixed to the receiving member 22 by screwing the nut 31 from the free end portion of each straight rod portion 32 inserted into each insertion hole 29.

As a result, the receiving portion 2 will be described in detail later.
4, one of the reinforcing bars R arranged on the receiving surface 27 along the longitudinal direction and the other reinforcing bar R arranged in a direction orthogonal to the longitudinal direction of the receiving portion 24 are arranged in the longitudinal direction of the receiving portion 24. It can be fixed by the U bolt 31 fixed to the receiving member 22.

FIG. 7 is a perspective view showing a usage state in which the above-mentioned reinforcing bar joint 1 and reinforcing bar joint 21 are used at a construction site, FIG. 8 (a mode in which the reinforcing bar joint 1 connects the main bar R1 in one direction), and FIG. (Aspect in which the hoop reinforcement R2 is connected in one direction by the reinforcing bar joint 21), FIG.
FIG. 9 is an enlarged view of a main part of the embodiment (where the intersection between the main muscle R1 and the hoop muscle R2 is fixed), and FIG. 9 is an explanatory view for explaining the connection shown in FIG.

Next, with reference to FIGS. 7 to 11, a method of connecting and fixing the reinforcing bar R using the reinforcing bar joint 1 and the reinforcing bar joint 21 will be described.

FIG. 7 shows a reinforcing structure in which a plurality of main muscles R1 are arranged in a rectangular shape and a plurality of hoop muscles R2 are arranged around them.

This bar arrangement structure has four sides along the circumferential direction.
The main muscles R1 of the book are arranged in the vertical direction at a predetermined interval from each other, and the hoop muscles R2 are arranged around the main muscle R1 in the horizontal direction at a predetermined distance from each other.

In this reinforcement structure, for example, as shown in FIG. 8, a new installation is connected to the upper end of the existing main reinforcement R1 arranged vertically and the upper end of the existing main reinforcement R1. The lower end of the main bar R1 is connected by the reinforcing bar joint 1.

That is, in this connection, as shown in FIG. 9, first, the straight rod portions 12 of the U bolts 10 are respectively inserted into the pair of insertion holes 9 that face each other with the receiving surface 7 interposed therebetween. 10 is inserted from a direction orthogonal to the longitudinal direction of the receiving portion 4, a nut 11 is screwed into the free end portion of each straight rod portion 12, and the main bar R1 is loosened between the receiving surface 7 and the U bolt 10. So that it can be inserted, and then the upper end portion of the existing main bar R1 is provided along the longitudinal direction of the receiving portion 4 with these receiving surfaces 7 and U.
A nut 11 that is loosely inserted to the one half (lower half) in the longitudinal direction of the receiving portion 4 between the bolt 10 and then screwed into two U bolts 10 arranged in the one half.
Is fastened, and the one half of the reinforcing bar joint 1 is fixed to the upper end of the existing main reinforcement R1 by the two fixing members 3.

In this fixing, the receiving portion 4 is inserted at the time of loose insertion.
Of the main bar R by the two guide portions 6 arranged to face each other across the receiving surface 7 at one longitudinal end thereof and the one guide portion 6 arranged at the central portion in the longitudinal direction of the receiving portion 4.
The main reinforcement R1 can be reliably positioned along the longitudinal direction of the receiving portion 4 by guiding the connection direction of the first connection portion 1. Moreover, when fixed, the existing main reinforcement R1 is fixed by the two U bolts 10.
The upper end of 1 can be reliably fixed.

Then, the lower end of the newly installed main bar R1 is arranged along the longitudinal direction of the receiving portion 4 between the receiving surface 7 and the U-bolt 10 on the other half of the longitudinal direction of the receiving portion 4 (upper half).
Up to the upper end of the existing main bar R1 and the new main bar R1
The lower end of the rebar joint 1 in the vertical direction, and then the nut 11 screwed into the two U bolts 10 arranged in the other half is tightened, and the two fixing members 3 allow the other side of the rebar joint 1 The lower end of the newly installed main reinforcement R1 is fixed to the half.

In this fixing, the receiving portion 4 is inserted at the time of loose insertion.
By the two guide portions 6 that are arranged opposite to each other at the other end portion in the longitudinal direction of the receiving surface 7 and the guide portion 6 on the other side that is arranged at the central portion in the longitudinal direction of the receiving portion 4, the main bar R
The main rebar R1 can be reliably positioned along the longitudinal direction of the receiving portion 4 by guiding the connecting direction of the No. 1 and, at the time of fixing, the new main rebar R by the two U bolts 10.
The lower end of 1 can be securely fixed.

As a result, as shown in FIG. 8, the upper end of the existing main reinforcement R1 and the lower end of the new main reinforcement R1 can be reliably connected in the same direction. as a result,
The upper end of the existing main bar R1 and the lower end of the new main bar R1 can be connected via the reinforcing bar joint 1. Therefore, the work efficiency can be improved by bolting on site without processing the upper end of the existing main bar R1 and the lower end of the new main bar R1 in advance by the reinforcing bar joint 1 having a simple structure including only the receiving member 2 and the fixing member 3. Good, simple and reliable connection is possible.

Further, in this bar arrangement structure, for example, as shown in FIG. 10, both ends of the hoop bar R2 arranged in the horizontal direction are connected by the reinforcing bar joint 21.

That is, in this connection, at both ends of the hoop muscle R2 that overlap in the vertical direction, the receiving surface 22 of the receiving portion 24 contacts the receiving member 22 with the end of the hoop muscle R2 on one side (lower side). As described above, the straight rod portions 32 of the two U bolts 30 are arranged from the one side (lower side) and the other side.
From the other side (upper side), each U bolt 30 of the receiving portion 24 is inserted into each of a pair of insertion holes 29 facing each other with the receiving surface 27 sandwiched therebetween so as to come into contact with the end of the (upper side) hoop muscle R2. These receiving surfaces 27 are inserted from the direction orthogonal to the longitudinal direction.
And the respective U bolts 30, the two ends of the hoop muscle R2 are sandwiched in a state of being overlapped with each other, and the two U bolts 30 have nuts 31
Are fastened to fix both ends of the hoop muscle R2.

In this fixing, the four guide portions 26 arranged to face each other with the receiving surface 27 interposed therebetween guide the fixing direction of the end portion of the hoop muscle R2 on one side (lower side) to the one side ( The lower part) of the hoop muscle R2, the receiving portion 24
Can be reliably positioned along the longitudinal direction, and at the time of fixing, the two U-bolts 30 can reliably fix the two overlapping end portions.

As a result, as shown in FIG. 10, both ends of the hoop muscle R2 can be reliably connected in the same direction. As a result, both ends of the hoop muscle R2 can be connected via the reinforcing bar joint 21. for that reason,
By using the reinforcing bar joint 21 having a simple structure including only the receiving member 22 and the fixing member 23, it is possible to easily and surely connect by bolting in the field, without processing both ends of the hoop muscle R2 in advance. .

Further, in this bar arrangement structure, for example, as shown in FIG. 11, the intersection of the main bar R1 arranged in the vertical direction and the hoop bar R2 arranged in the horizontal direction is located at the rebar joint 21. Is fixed by.

That is, in this fixing, the receiving member 22 is fixed to the receiving portion 2 at the intersection of the main reinforcement R1 arranged in the vertical direction and the hoop reinforcement R2 arranged in the horizontal direction.
4 are arranged from one side (back side) so that the receiving surface 27 of the U-bolt 4 contacts the main muscle R1, and the straight rod portions 32 of the two U bolts 30 contact the other side (front side) so as to contact the hoop muscle R2. ), The U bolts 30 are inserted into the receiving portions 24 in the respective insertion holes 29 adjacent to each other in the longitudinal direction of the receiving portion 24.
These receiving surfaces 27 are inserted from the direction along the longitudinal direction of the
The hoop muscle R2 overlapped with the main muscle R1 is sandwiched between the U-bolt 30 and each U bolt 30, and the nuts 31 are respectively tightened to the two U bolts 30 to fix the intersection portion of the main muscle R1 and the hoop muscle R2.

In this fixing, the four guide portions 26 arranged to face each other with the receiving surface 27 interposed therebetween guide the fixing direction of the main bar R1 so that the main bar R1 can be secured along the longitudinal direction of the receiving section 24. Can be positioned at the same time. When fixed, the two U bolts 30 can be used to fix the main bar R
By guiding the hoop muscle R2 overlapped with 1 in a direction orthogonal to the main muscle R1, the hoop muscle R2 can be reliably positioned, and these intersections can be reliably fixed. .

As a result, as shown in FIG. 11, the intersection of the main muscle R1 and the hoop muscle R2 can be fixed so that they intersect at right angles. Therefore, the reinforcing bar joint 21 having a simple structure including only the receiving member 22 and the fixing member 23
Thus, not only can the two ends of the hoop muscle R2 be connected in the same direction as described above, but also the intersection of the main muscle R1 and the hoop muscle R2 can be selectively fixed.

In the above description, the intersection of the main bar R1 and the hoop bar R2 is fixed by the rebar joint 21, but, for example, the rebar joint 1 is used to directly connect two or four U bolts 30 to each other. The rod portion 32 is provided in each of the insertion holes 29 adjacent to each other in the longitudinal direction of the receiving portion 4, and each U bolt 3 is attached.
By inserting 0 from the direction along the longitudinal direction of the receiving portion 24 and tightening the nuts 31, respectively, it is also possible to fix the intersection of the main muscle R1 and the hoop muscle R2.

Further, as shown in FIG. 12, for example, in the reinforcing bar joint 1, the screw hole 14 for screwing the separator S may be formed so as to penetrate in the thickness direction of the receiving member 2. . The threaded hole 14 is located between the receiving surface 7 and 1
As a pair, a plurality (six in total) are provided between the insertion portions 5 in the longitudinal direction of the receiving portion 4. By forming the screw holes 14 as described above, the separator S can be connected to the receiving member 2 from both directions (vertical direction) orthogonal to the reinforcing bars R arranged along the receiving surface 7. This reinforcing bar joint 1 can be used as a connecting fitting for connecting a frame (not shown) and the reinforcing bar R.

In the above description, the method of using the reinforcing bar joint 1 and the reinforcing bar joint 21 has been described by exemplifying the reinforcing bar structure consisting of the main bar R1 and the hoop bar R2. The present invention is not limited to the muscle structure and can be applied to any muscle arrangement structure.

In the above description, the four fixing members 3
Although the reinforcing bar joint 1 for fixing the (U bolt 10) and the reinforcing bar joint 21 for fixing the two fixing members 23 (U bolts 30) have been illustrated, in the reinforcing bar joint of the present invention, the number of fixing members may be appropriately selected. It suffices to form the insertion portions corresponding to the number of the fixing members on the receiving member.

Further, in the above description, in the reinforcing bar joints 1 and 21, the receiving surfaces 7 and 27 for receiving the reinforcing bar R are
As the member for providing the frictional resistance with the received reinforcing bar R, the ridges 8 and 28 are formed in an inclined shape with respect to the longitudinal direction of the receiving portions 4 and 24. It is not limited to the slanted protrusions 8 and 28, and may be formed in a laterally inclined shape, a substantially truncated cone shape, or the like, depending on the outer peripheral shape of the deformed rebar.

Further, in the reinforcing bar joint of the present invention, the size thereof may be prepared according to the diameter of the reinforcing bar, and the number and arrangement of the guide portions can be appropriately selected.

Further, the reinforcing bar joint of the present invention can be applied not only to the deformed reinforcing bar shown in FIG. 7 etc. but also to a round bar reinforcing bar.

[0070]

As described above, according to the first aspect of the present invention, the simple construction of only the receiving member and the fixing member ensures a work efficiency and reliable connection in the field without processing the reinforcing bar in advance. can do.

According to the second aspect of the invention, the end portions of the respective reinforcing bars to be connected can be more reliably fixed by the plurality of fixing members.

According to the third aspect of the present invention, one reinforcing bar joint can achieve the connection of the reinforcing bars in the same direction and the crosswise fixing of the reinforcing bars.

According to the invention described in claim 4, it is possible to surely position each reinforcing bar by the guide portion and to achieve a reliable bar arrangement.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a reinforcing bar joint of the present invention.

2 is a plan view of a receiving member of the reinforcing bar joint shown in FIG. 1. FIG.

FIG. 3 is a front view showing a state where the fixing member is assembled to the receiving member in the reinforcing bar joint shown in FIG.

FIG. 4 is an exploded perspective view showing another embodiment of the reinforcing bar joint of the present invention.

5 is a plan view of a receiving member of the reinforcing bar joint shown in FIG. 4. FIG.

6 is a front view showing a state where the fixing member is assembled to the receiving member in the reinforcing bar joint shown in FIG.

FIG. 7 is a perspective view showing a usage state in which the reinforcing bar joint shown in FIGS. 1 and 4 is used at a construction site.

FIG. 8 is an enlarged view of an essential part of FIG. 7 (a mode in which main bars are connected in one direction by a reinforcing bar joint).

9 is an explanatory diagram for explaining the connection of FIG. 8. FIG.

FIG. 10 is an enlarged view of an essential part of FIG. 7 (a mode in which hoop muscles are connected in one direction by a reinforcing bar joint).

FIG. 11 is an enlarged view of an essential part of FIG. 7 (a mode in which a cross section of a main bar and a hoop bar is fixed by a reinforcing bar joint).

12 is an exploded perspective view showing a mode in which a screw hole for connecting a separator is formed in the embodiment shown in FIG. 1. FIG.

[Explanation of symbols]

1,21 Reinforcing bar joint 2,22 Receiving member 3,23 Fixing member 4,24 Receiver 6,26 Guide part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shuji Ota             2-180 Iwamuro, Sayama City, Osaka Prefecture, Osaka Prefecture             In Chen Block Co., Ltd. (72) Inventor Gen Doi             2-180 Iwamuro, Sayama City, Osaka Prefecture, Osaka Prefecture             In Chen Block Co., Ltd. F-term (reference) 2E164 AA02 BA23 BA33

Claims (4)

[Claims] 1. A receiving member having a receiving portion for receiving a reinforcing bar, and a fixing member that can be fixed to the receiving member across the reinforcing bar received by the receiving portion. Rebar joint. 2. The reinforcing bar joint according to claim 1, comprising a plurality of the fixing members. 3. The fixing member can be selectively fixed to the receiving member in a direction orthogonal to the longitudinal direction of the receiving portion and in a direction along the longitudinal direction of the receiving portion. The rebar joint according to claim 1 or 2, characterized in that. 4. The reinforcing bar joint according to claim 1, wherein the receiving member is provided with a guide portion for guiding the reinforcing bar.