JP2018059387A - Injection method of filler to screw reinforcement joint part and cartridge for accommodating filler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an injection method of a filler to a screw reinforcement joint part of a screw reinforcement that can exhibit stable strength with simple work, and a cartridge for accommodating filler.SOLUTION: When a screw reinforcement 2 with a male screw part 2a is screwed and joined to a receiving member 1 with a female screw part 1a, a cartridge 4, which retains a filler 3 for filling the gap of a female screw part 1a and the male screw part 2a, is arranged between an end part of the screw reinforcement 2 and an inner surface of the receiving member 1. The injection method of a filler includes pressing any one of the cartridge 4 and the filler 3 by using an end surface 2b of the screw reinforcement 2 and the inner surface of the receiving member 1 to discharge the filler 3 from the cartridge 4 as the screw reinforcement 2 screws to the receiving member 1, and press-fitting the filler 3 to the gap of the male screw part 2a and the female screw part 1a by further screwing the screw reinforcement 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for injecting a filler into a threaded reinforcing bar joint to a connecting part for connecting a threaded reinforcing bar at an upper floor and a threaded reinforcing bar at a lower floor in an RC structure building, and a cartridge for storing the filler.

  In an RC structure building, a reinforcing bar that bears a tensile load among the loads applied to the structure is used. On the surface of such a reinforcing bar, uneven ribs are formed in order to increase the adhesion of concrete and grout material and to counter the pulling force. In addition to being connected by welding, the reinforcing bars are connected by screwing each of the end portions formed in the form of male threads to a cylindrical connecting member provided with female threads, or connecting the ends of the reinforcing bars to be connected to each other. After being inserted into the coupler, the connection is made by caulking the coupler.

  In particular, among these connection methods, those using a screw structure have little variation in construction quality, and it is easy to obtain a strength-stable joint. For example, Patent Document 1 discloses a conventional technique related to such a screw structure.

  In Patent Document 1, a reinforcing bar having a screw structure is used, for example, in a reverse driving method. The reverse driving method is a technique in which the first floor is first constructed on the ground and the lower floors are constructed sequentially. When the first floor portion on the ground is constructed, a space for constructing the first basement portion is formed below the first floor portion while supporting the first floor portion. When constructing the underground first floor part in this space, the screw reinforcing bars provided in the first floor part and the screw reinforcing bars provided in the first underground part are connected.

  Prior to the connection, a reinforcing bar is attached to each of the RC members on the upper and lower floors. This attachment also uses a screw structure of a reinforcing bar, and the reinforcing bar is screwed to an embedded member having a female screw portion embedded in advance in each RC member.

  This patent document 1 is a technique for connecting reinforcing bars connected to the upper and lower floors in a space between the upper and lower floors, and does not particularly mention a method for connecting the reinforcing bars to the upper floor. However, when screw rebars are screwed into the embedded member at the ceiling position, usually a filler such as grout material is injected prior to screw rebar screwing. This grout material is filled and hardened between the male threaded portion of the screw rebar and the female threaded portion of the embedded member to prevent the male threaded member from slipping out and increase the rigidity of the joint.

  For such injection of the grout material into the embedded member, for example, an injection device for discharging while mixing the main agent and the curing agent accommodated in a separate container is used. This injection device is normally held by an operator, and the discharge trigger is operated while being held in an upward posture toward the hole of the embedded member opened in the ceiling. A predetermined amount of grout material is discharged every time the trigger is operated, and the operator adjusts the number of times the grout material is discharged according to the thickness of the screw rebar used.

JP-A-10-317393

  However, in the conventional method described above, some of the grout material poured upward falls without waiting for screw rebars to be screwed together. The viscosity of the grout material is almost constant with some fluctuations depending on the temperature. Therefore, it is impossible to completely prevent the fall, and the amount of filling of the grout material is not appropriate. For this reason, the strength and rigidity of the joint portion of the screw rebar vary.

  In addition, the injection device has a predetermined weight, and the trigger of the injection device is heavy due to the viscosity of the grout material, and pulling the trigger many times while holding it upward places a heavy burden on the operator. In addition, the working environment becomes inferior, for example, the dropped grout material contaminates the work site and workers' clothes. The yield of the grout material naturally deteriorates due to the fall of the grout material.

  In view of such a situation, conventionally, there is a demand for a method of injecting a filler into a screw rebar joint portion of a screw rebar that can exert a certain strength with a simple operation, and a cartridge that accommodates the filler.

(Feature configuration)
The filling material injection method for the screw rebar joint according to the present invention,
When screwing and joining a screw rebar having a male screw part to a receiving member having a female screw part,
A cartridge in which a filler that fills a gap between the female screw portion and the male screw portion is held is disposed between the end portion of the screw rebar and the inner surface of the receiving member,
As the screw rebar is screwed with respect to the receiving member, the end surface of the screw rebar and the inner surface of the receiving member press at least one of the cartridge and the filler to remove the filler from the cartridge. Release,
It is characterized in that the filler is press-fitted into the gap between the male screw portion and the female screw portion by further screwing of the screw rebar.

(effect)
As in this method, the cartridge holding the filler is arranged at the end of the screw reinforcing bar, and the screw reinforcing bar is screwed to the receiving member, so that the gap between the female screw part of the receiving member and the male screw part of the screw reinforcing bar is set. The filling work of the filling material with respect to is extremely efficient.

  For example, when a reinforcing bar is connected to the ceiling of the work space, such as a reverse driving method, the filler can be injected only by screwing the reinforcing bar to the receiving member of the ceiling. In this case, it is not necessary to hold the filling device in an upward posture as in the conventional case, and the filling operation becomes extremely easy. Moreover, for example, a predetermined amount according to the size of the reinforcing bar can be held in the cartridge in advance. That is, since the filling work of the filling material into the cartridge can be performed at a place different from the connection site of the screw rebar, the time for connecting the screw rebar in a place where the working environment such as temperature and humidity is severe can be shortened.

  In addition, the cartridge should just be what can hold | maintain a filler when screwing at least a screw reinforcement to a member. For example, the cartridge may be configured to completely enclose the filler, or may be capable of temporarily holding the filler while a part of the cartridge is opened. Further, the cartridge and a part of the screw rebar may cooperate to hold the filler.

  This method is applicable not only to the reverse driving method but also to a case where the receiving member is a cylindrical member that connects two screw rebars together. For example, the receiving member is shallowly screwed into one of the reinforcing bars, the other screw reinforcing bar is screwed into the cartridge while the cartridge is inserted into the receiving member, and the receiving member and the other threaded reinforcing bar are screwed to both screws. Both threaded reinforcing bars can be arranged to face each other at the center position of the receiving member while narrowing the interval between the reinforcing bars. In this case, the work process of filling the filler does not particularly occur, and the filler can be appropriately injected only by paying attention to the connection position of the two screw reinforcing bars to the receiving member.

(Feature configuration)
In the filling material injection method according to the present invention, when the screw rebar is screwed, the cartridge can be fixed to the end of the screw rebar using an adhesive or an adhesive.

(effect)
With this method, the cartridge can be attached to the reinforcing bar very easily. The attachment in this case may be performed by bonding a part of the outer surface of the cartridge to the end surface of the screw reinforcing bar, or bonding a part of the cartridge to the side surface near the tip of the screw reinforcing bar. By fixing the cartridge, even if the posture of the reinforcing bar changes to some extent when the screw reinforcing bar is screwed to the receiving member, the cartridge does not move, and the screwing operation of the screw reinforcing bar becomes easy.

  In addition, by fixing the position of the cartridge, the cartridge does not inadvertently contact the inner surface of the receiving member when the threaded reinforcing bar is screwed to the receiving member. Therefore, the filler held in the cartridge is released when the screw rebar reaches a predetermined position with respect to the receiving member, and the filler can be injected into an ideal state.

(Feature configuration)
In the filling material injection method according to the present invention, when the screw rebar is screwed, the cartridge may be held by a holding member attached to an end of the screw rebar.

(effect)
Even with this method, the cartridge can be easily attached to the end of the screw rebar. In other words, if the cartridge is held, for example, the adhesive curing time required when using an adhesive is not required, and the fixing force does not vary due to the difference in the curing time of the adhesive. The fixing work becomes faster and more reliable.

(Feature configuration)
In the filling material injection method according to the present invention, when the screw rebar is screwed, the cartridge is fixed to the end of the screw rebar using a support portion provided in a part of the cartridge. it can.

(effect)
When the cartridge is fixed to the end portion of the screw reinforcing bar as in this configuration, if the support portion is provided on the cartridge side, the fixing of the cartridge is further simplified. As the support portion, a method other than adhesion or adhesion is used. For example, an arm portion that sandwiches the side surface of the screw rebar is provided on a part of the cartridge, or a cylindrical portion that fits on the outer periphery of the screw rebar is provided on the cartridge. It is good to have it.

(Feature configuration)
In the filling material injection method according to the present invention, the cartridge may be fixed in advance to the inner surface of the receiving member by a temporary fixing member when the threaded reinforcing bar is screwed.

(effect)
When the screw reinforcing bar is screwed into the receiving member while the cartridge is disposed at the end of the screw reinforcing bar, the load of the screwing operation is increased due to the weight of the screw reinforcing bar. For this reason, it is difficult to align the tip of the screw reinforcing bar with the hole of the receiving member, and the cartridge may interfere with the periphery of the hole of the receiving member. In this regard, as in this method, if only the cartridge is fixed to the inside of the receiving member first by the temporary fixing member, the cartridge is lightweight, so that the burden of the operation is reduced, and the hole of the receiving member is reduced. Installation of the cartridge is ensured. Therefore, the filler can be reliably injected between the male screw portion of the screw rebar and the female screw portion of the receiving member.

(Feature configuration)
The cartridge according to the present invention is used for injecting a filler into the threaded reinforcing bar joint, and when the threaded reinforcing bar having the male threaded part is screwed into the receiving member having the female threaded part, A container body disposed between an end of the screw rebar and the inner surface of the receiving member while holding a predetermined amount of filler to be filled between the screw portion and the female screw portion; As the screw rebar is screwed, the end surface of the screw rebar and the inner surface of the receiving member press at least one of the container main body and the filler filled in the container main body to It is characterized in that the filling material can be discharged from the container body.

(effect)
If it is this structure, a filler can be inject | poured into the back part of a screw reinforcement joint part only by arrange | positioning a cartridge to the edge part of a screw reinforcement and screwing a screw reinforcement to a member. Therefore, for example, even when the screw rebar is lifted upward and joined to the receiving member as in the reverse driving method, the filling work of the filler becomes extremely easy. Further, the filling operation of the filler does not need to be performed when screw rebar is screwed to the receiving member as in the conventional case, and the filler may be held in the cartridge in advance. Therefore, the connecting time of the screw rebar is extremely short.

It should be noted that the cartridge here may be any cartridge that can hold the filler when at least the threaded reinforcing bar is screwed into the receiving member. For example, the cartridge may be one that temporarily holds the filler while a part of the cartridge is opened in addition to the one that completely encloses the filler. Further, the cartridge and a part of the screw rebar may cooperate to hold the filler.
(Feature configuration)
The cartridge which concerns on this invention can comprise the said container main body by the some division body which can mutually be combined.

(effect)
If it is this structure, the filling operation | work of the filler with respect to a cartridge will become very easy. In addition, since the degree of freedom in setting the shape of the cartridge is increased by using the divided configuration, it is easier to obtain a cartridge having a shape that can be easily attached to the end of the screw rebar, and the connection work between the screw rebar and the receiving member is more efficient. It will be something.

(Feature configuration)
The cartridge according to the present invention has the filler, a main agent, and a curing accelerator that accelerates the curing of the main agent by mixing with the main agent, and the main agent and the curing are provided inside the container body. A partition portion for separating and storing the accelerator may be provided.

(effect)
If it is this structure, a cartridge can be preserve | saved for a long time in the state which a main ingredient does not harden | cure. Therefore, the cartridge can be prepared without being constrained by the screw rebar connecting work process, and the degree of freedom of use of the cartridge is improved.

Explanatory drawing which shows the connection aspect of the screw reinforcement which concerns on 1st Embodiment. The perspective view which shows an example of the method of fixing the cartridge of 1st Embodiment to a screw reinforcement. The perspective view which shows an example of the holding member of the cartridge which concerns on 2nd Embodiment. The perspective view which shows the fixed aspect of the cartridge using the holding member of 2nd Embodiment. The perspective view which shows an example of the cartridge by which the discharge | release direction of 3rd Embodiment was specified. The perspective view which shows an example of the cartridge by which the discharge | release direction of 4th Embodiment was specified. The perspective view which shows the example by which the cartridge and support part of 5th Embodiment were integrally molded. The perspective view which shows an example of the cartridge which can hold | maintain the two-component filler of 6th Embodiment Explanatory drawing which shows an example of the cartridge which concerns on 7th Embodiment. Explanatory drawing which shows an example of the cartridge which concerns on 8th Embodiment. Explanatory drawing which shows an example of the cartridge which concerns on 9th Embodiment Explanatory drawing which shows an example of the cartridge which has a temporary fixing member which concerns on 10th Embodiment. Explanatory drawing which shows an example of the cartridge which has a temporary fixing member which concerns on 10th Embodiment. Graph showing the tensile test results of threaded reinforcement joints by this method

〔Overview〕
One embodiment of a method for injecting a filler into a threaded reinforcing bar joint of the threaded reinforcing bar according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, in the filling material injection method according to the present embodiment, when the screw rebar 2 having the male screw portion 2a is screwed and joined to the receiving member 1 having the female screw portion 1a, The filler 3 is filled in the gap between the female screw portion 1a and the male screw portion 2a. The filler 3 is held in advance in the cartridge 4, and the screw rebar 2 is screwed to the receiving member 1 in a state where it is disposed at the end of the screw rebar 2. As the screw rebar 2 is screwed into the receiving member 1, the cartridge 4 is pressed by the end surface 2 b of the screw rebar 2 and the inner surface (the bottom surface 1 b and the surface of the female screw portion 1 a) of the receiving member 1 to release the filler 3. . Further, the screw rebar 2 is screwed to press the filler 3 into the gap between the male screw portion 2a and the female screw portion 1a.

[First Embodiment]
FIGS. 1A to 1E show a case in which, for example, in the reverse driving method, the screw rebar 2 constituting the lower floor pillar is screwed to the receiving member 1 embedded in the upper floor housing 5 in advance. In this way, when the screw rebar 2 is fixed to the receiving member 1 of the housing 5, the screw rebar 2 can be suspended and fixed to the receiving member 1 by screwing, so that the work of holding the screw rebar 2 is facilitated and the workability is very high. good.

  In order to prevent the screw rebar 2 from coming out of the receiving member 1, it is necessary to inject a filler 3 such as a grout material between the male screw portion 2a and the female screw portion 1a. Conventionally, in the reverse driving method, the filler 3 is injected into the inner part of the receiving member 1 using an injection gun or the like before inserting the reinforcing bar, but a part of the filler 3 is inserted before the screw reinforcing bar 2 is inserted. Sag outside the receiving member 1. Moreover, although the filler 3 is inject | poured using a manual injection gun etc., when the temperature is low, the viscosity of the filler 3 tends to increase, and the injection load becomes large. Thus, in the conventional injection method, not only the yield of the filler 3 is bad, but also the working environment is extremely bad.

  In order to solve such an inconvenience, in this embodiment, the filler 3 is held in advance in the cartridge 4, and the cartridge 4 is arranged at the tip of the screw rebar 2, and the screw rebar 2 is screwed to the receiving member 1. Shall be combined. For example, a predetermined amount of the filler 3 is filled in the cartridge 4 according to the size of the screw rebar 2. The filling operation of the filler 3 into the cartridge 4 can be performed at a place different from the connection site of the screw rebar 2. Further, the filler 3 held in the cartridge 4 is discharged after the screw rebar 2 reaches the vicinity of the bottom surface 1 b of the receiving member 1. Therefore, it is not necessary to quickly screw the screw rebar 2 before the filler 3 hangs down as in the conventional case, and the screw rebar operation of the screw rebar 2 can be performed calmly and reliably. Thus, the connection method of the screw rebar 2 of this method reduces the load of connection work in a place where the work environment such as temperature and humidity is severe.

[Screw bars]
As the screw rebar 2 to be used, for example, the names D19 to D51 defined in JIS G 3112 can be used.

[Receiving member]
As shown in FIG. 1, the receiving member 1 includes a cylindrical main body 1c and a partition 1d at a central position in the longitudinal direction. In principle, the screw rebar 2 is screwed in until it comes into contact with the partition 1d. In this receiving member 1, a hole 1e for filling the filler 3 is formed in the inner part of one female screw part 1a. For example, when embedding the receiving member 1 in the casing 5 of the reverse driving method, it is installed with the female screw portion 1a side with the hole portion 1e facing upward. Specifically, the screw rebar 2 embedded in the column on the upper floor is constructed, and the receiving member 1 is screwed to the lower end portion of the screw rebar 2. When the screwing is completed, the filler 3 is injected from the hole 1e using an injection gun, and the filler 3 overflows upward from the gap between the male screw portion 2a of the screw rebar 2 and the female screw portion 1a of the receiving member 1. Inject until. Thereafter, a concrete template is assembled to form the housing 5, and the concrete is placed so that only the lower end surface of the receiving member 1 is exposed downward.

  In addition, about the internal thread part 1a below the partition part 1d among the receiving members 1, since the filler 3 is inject | poured by the method of this embodiment, the hole 1e for the said filler 3 injection | pouring is not provided. .

〔cartridge〕
As shown in FIG. 2, in this embodiment, a cartridge 4 filled with a filler 3 in advance is disposed on the end surface 2 b of the screw rebar 2 to be screwed to the receiving member 1. The container body 4a of the cartridge 4 is pressed by the end surface 2b of the screw rebar 2 and the inner surface of the receiving member 1 (the bottom surface 1b and the surface of the female screw portion 1a) when the screw rebar 2 is screwed to the receiving member 1. The As a result, the shape of the container body 4a is forced to follow the shape of the gradually narrowing space, and the outer skin is stretched by the reaction force of the filler 3 from the inner surface. Thereafter, any part of the container body 4a is extended beyond the maximum tensile strength, and the container body 4a is opened.

  As the material constituting the container body 4a, various materials can be applied as long as they can be pressed and opened. The structure can also be set as appropriate. For example, the material of the container body 4a may be one that expands and contracts like a rubber balloon, or may be formed of a thin resin bag that does not have elasticity. Also, aluminum foil or coated paper may be used. Any material can be used as long as it can hold the filler 3 in a fluid state and can be opened when a predetermined pressure is applied. In particular, if the rubber or the like has elasticity, the amount of the filler 3 can be changed according to the size of the screw rebar 2 while using a single container body 4a having the same size, and convenience is enhanced.

  Examples of the filler 3 used for fixing the screw rebar 2 include an inorganic grout material and an organic grout material. Among these, some organic grout materials use a mixture of a main agent and a curing accelerator. However, the main agent is cured in a predetermined time without using a curing accelerator. Therefore, the curing accelerator can be used for adjusting the curing time. In addition, the usage aspect of such a two-component grout material is mentioned later.

  The cartridge 4 into which the filler 3 has been injected can be prepared in another place prior to connecting the screw rebar 2. Therefore, the cartridge 4 can be prepared without being constrained by the connection work process of the screw rebar 2, the degree of freedom in using the cartridge 4 is improved, and the connection work at the connection site becomes smooth.

  FIG. 2 shows a case where the cartridge 4 is a rubber balloon. Since the rubber balloon is stretchable, the amount of filler 3 injected can be changed according to the screw rebars 2 of a plurality of sizes. For the injection of the filler 3, for example, a manual or electric filler injection machine is used. The injection amount of the filler 3 is measured by the number of times of operation of an injection trigger in the case of a manual type, and is measured by the operating time of the injection drive unit in the case of an electric type. After the filling material 3 is injected, the rubber balloon mouth 4b is tied or sealed with an adhesive tape or the like.

[How to fix the cartridge]
When the screw rebar 2 is screwed to the receiving member 1, a method for putting the cartridge 4 into the receiving member 1 is arbitrary. For example, the cartridge 4 may be held by hand and inserted into the receiving member 1 immediately before the end of the screw rebar 2 is screwed into the receiving member 1. However, it is very complicated to put the cartridge 4 directly into the receiving member 1 provided on the upper case 5 of the reverse hammering method. Therefore, it is preferable that the cartridge 4 is fixed to the end surface 2 b of the screw rebar 2. For example, it can be fixed using an adhesive or an adhesive. These adhesives and adhesive materials may be provided on the screw rebar 2 or on the cartridge 4. Alternatively, when the cartridge 4 is placed, it may be attached to or applied to the screw rebar 2 or the cartridge 4.

[Adhesives and adhesives]
Any kind of adhesive or adhesive may be used as long as it can fix the cartridge 4 when the threaded reinforcing bar 2 is screwed into the member 1. Although depending on the material of the cartridge 4, for example, a general double-sided tape 6 a can be used as the adhesive material 6. As the adhesive, it is possible to use a rubber adhesive having a strong adhesive property or an instantaneous adhesive. In these cases, the cartridge 4 can be attached to the screw rebar 2 very easily.

[Fixing procedure for screw rebar]
When screwing the screw rebar 2, it is necessary that the screw rebar 2 is screwed to the receiving member 1 by a predetermined length or more. That is, a predetermined number of screw threads are engaged between the screw rebar 2 and the receiving member 1 so that the joint portion of the screw rebar 2 can exhibit predetermined strength and rigidity.

  The screw rebar 2 is screwed by a person with a small diameter rebar, but is held with a predetermined jig or the like when the diameter is large. A predetermined torque is applied after screwing into the inner part of the female screw part 1a. Thereby, the play between the receiving member 1 and the screw rebar 2 is eliminated, and a strong connection portion can be obtained. A portable torque wrench or the like is used for this tightening operation.

  In addition, in order to confirm whether the connection state of the screw reinforcement 2 is appropriate, it is good to provide the parameter | index 2d in the side surface 2c of the screw reinforcement 2. FIG. For example, as shown in FIG. 1, an index 2 d having a predetermined length is provided on a planar side surface 2 c that is not a threaded portion of the side surface 2 c of the screw rebar 2. If the planar side surface 2c is used, it is easy to install the indicator 2d. The index 2d may be a separate object such as a sticker or may be drawn with paint. By providing the index 2d, the screwing depth of the screw rebar 2 can be confirmed, and the joint portion of the screw rebar 2 can have an intended tensile strength.

  Such an index 2d is particularly effective when, for example, screw rebars 2 are respectively screwed from both ends to a cylindrical receiving member 1 having no partition 1d at the center. In this case, it is necessary that the butted portion of the two screw rebars 2 is at a substantially central position of the receiving member 1. That is, it is confirmed that each screw rebar 2 is screwed to the receiving member 1 by a predetermined length or more, and each screw rebar 2 is screwed to the receiving member 1 evenly. For example, as shown in FIG. 1 (e), the indicator 2 d is provided so that a part thereof is exposed to the outside of the receiving member 1 in a state where the screw rebar 2 has been screwed. By providing the index 2d, these elements can be easily confirmed.

〔Example〕
An evaluation test was performed as follows for the connection joint of the screw rebar 2 by the connection method of the present embodiment. In the test, the same-diameter joint manufactured using a JFE steel threaded steel rebar 2 of steel type SD490 / nominal name D38 and a screw coupler made of the same JFE steel bar was used. As the filler 3, a screw grout type M2 (inorganic grout made of JFE steel) was used.

  The evaluation test is based on the description of the criteria for judging mechanical joint performance of reinforcing bars (pages 170 to 177) in the “Explanation of Structural Technical Standards for Buildings (2015 Edition), Supervised by the National Institute for Land and Infrastructure Management” The elastic region positive / negative repeat test and the plastic region positive / negative repeat test were performed. An example of the test result is shown in FIG.

FIG. 14 shows the relationship between elongation and stress in the tensile test. In the actual test, the tension in the elastic region giving a stress 0.95 times the yield load σy was repeated 20 times, and then the tension in the plastic region was repeated 4 times. FIG. 14 shows two tensile histories in the elastic region and the plastic region, respectively. As a result of the test, the sliding deformation of the joint was 0.17 mm (within the criterion value 0.3), the strength was 720 N / mm ² (the criterion value 620 or more), and the performance of the class A joint (“strength and It has been confirmed that the joints satisfy the requirements of “joints that are comparable to the base metal in terms of rigidity but slightly inferior to the base metal in other cases”.

[Second Embodiment]
[Cartridge holding member]
For fixing the cartridge 4 to the screw rebar 2, a dedicated holding member A as shown in FIGS. 3 and 4 can also be used. For example, a clip having a clamping part for clamping the cartridge 4 and a support part for fixing itself to the end of the screw rebar 2 can be used.

  For example, as shown in FIG. 3, the holding member A includes a first member 7 and a second member 8 that are combined with each other. Each member has an L shape having bent portions 7a and 8a, and a portion located in the vicinity of the end face of the screw rebar 2 with the bent portions 7a and 8a as a boundary serves as a clamping portion and is located in the vicinity of the side surface 2c of the screw rebar 2. A site | part becomes a support part. Among these, the 1st clamping part 7b of the 1st member 7 is comprised in plate shape, and comprises the notch part 7d in the edge part. On the other hand, the second clamping portion 8b of the second member 8 is a folded portion 8e in which both ends of the plate-like base portion 8d are bent in a direction opposite to the end face side of the screw rebar 2 so that the first clamping portion 7b can be inserted. It has. Thereby, the vertical cross-sectional shape along the longitudinal direction of the second clamping portion 8b is substantially C-shaped. A gap 8f is formed between the two folded portions 8e, and serves as a portion for locking a part of the cartridge 4. In addition, a groove 8g for locking a part of the cartridge 4 is also formed in the base 8d so as to open to the first clamping portion 7b side. The folding direction of the folded portion 8e may be on the side of the end surface 2b of the screw rebar 2 in the opposite direction to the example of FIG.

  FIGS. 4A and 4B show a fixing example when a rubber balloon is used as the cartridge 4. After injecting the filler 3 into the container body 4a, the mouth portion 4b is tied and sealed, and the first sandwiching portion 7b is second sandwiched while the mouth portion 4b is applied to the notch portion 7d of the first sandwiching portion 7b. Insert into the groove 8g of the portion 8b. The first clamping part 7b is inserted into the second clamping part 8b until the bent part 7a of the first clamping part 7b and the bent part 8a of the second clamping part 8b abut on the side surface 2c of the screw rebar 2. When the insertion is completed, the tip of the first support portion 7c of the first member 7 and the tip of the second support portion 8c of the second member 8 press the side surface 2c of the screw rebar 2 by their own elasticity. As a result, a rotational moment is applied to the first member 7 and the second member 8 so that the tips of the first support portion 7c and the second support portion 8c are separated from each other. This rotational moment causes squeezing between the first clamping part 7b and the second clamping part 8b, so that both clamping parts 7b, 8b hold the cartridge 4 without coming out of each other and press the side surface 2c of the screw reinforcing bar 2 while screwing the reinforcing bar. 2 is fixed.

  In addition, even if the 1st clamping part 7b and the 2nd clamping part 8b are inserted in the back mutually, it is comprised so that the back part 7f of the notch part 7d may not reach the back part 8h of the groove part 8g. That is, the first support portion 7 c and the second support portion 8 c need to be inserted into the receiving member 1 while completely contacting the side surface 2 c of the screw rebar 2 over the entire length. Therefore, a gap enough to sandwich the mouth 4b of the cartridge 4 is provided between the notch 7d and the groove 8g even when the cartridge 4 is completely in contact.

As shown in FIG. 3, the planar shape of the tip of the first clamping part 7b is tapered. Thereby, the insertion to the 2nd clamping part 8b becomes easy. Further, the first sandwiching portion 7b is provided with a corner portion 7e that elastically contacts the second sandwiching portion 8b. That is, both sides of the first clamping part 7b are corners 7e at the position where the tapered region ends, and the length of the cutout part 7d is formed farther than the position of the corner 7e. Furthermore, the front end portions of the first clamping portion 7b having a fork shape are widened in the width direction of the first clamping portion 7b, and are formed wider than the inner width of the folded portions 8e of the second clamping portion 8b. Thereby, the front-end | tip part of the 1st clamping part 7b inserted in the 2nd clamping part 8b is narrowed by the folding | returning part 8e. As a result, in addition to the squeezing between the first clamping part 7b and the second clamping part 8b due to the repulsive force between the first support part 7c and the second support part 8c, the both clamping parts 7b, 8b are securely fixed in position. The
In addition, the 1st clamping part 7b may be clamped by the thickness direction of the 1st clamping part 7b by the base 8d of the 2nd clamping part 8b, and the two folding | turning parts 8e.

  In addition, when the holding member A holding the cartridge 4 is fixed to the screw rebar 2, at least one of the first holding portion 7 b and the second holding portion 8 b and the end surface 2 b of the screw rebar 2 may be bonded. Good. For example, the holding member A can be more reliably fixed to the screw rebar 2 by fixing using a double-sided tape or an instantaneous adhesive.

  The shapes of the first support portion 7c and the second support portion 8c are preferably configured to be as thin and narrow as possible within a range in which a predetermined elastic force can be exerted. This portion is inserted into a space formed by the planar side surface 2 c of the screw rebar 2 and the inner surface of the female screw portion 1 a of the receiving member 1. Therefore, it is better that the occupied volume is as small as possible.

  If the first member 7 and the second member 8 are made to have common dimensions with respect to the screw rebar 2 having several dimensions, the manufacture and management of these members become rational, and the mounting workability of the cartridge 4 is improved. In addition to improving costs. However, when the 1st member 7 and the 2nd member 8 of a specific dimension are used for the screw rebar 2 of various dimensions, the depth which the front-end | tip of the 1st clamping part 7b inserts in the inside of the 2nd clamping part 8b differs. Therefore, for example, the depth of the notch 7d provided in the first clamping part 7b and the depth of the groove 8g provided in the second clamping part 8b are formed sufficiently deep, and both clamping parts 7b and 8b are inserted deepest. Even in such a case, it is preferable to form a gap that can hold a part of the container body 4a.

  The first member 7 and the second member 8 are made of, for example, various metal materials or resin materials that can be elastically deformed. In the case of a resin material, the shape of the first sandwiching portion 7b and the second sandwiching portion 8b can be arbitrarily set by injection molding or the like. In the case of a resin material, the tip of the first clamping portion 7b is cut each time according to the size of the screw rebar 2 so that the first member 7 and the second member 8 having one size are applied to the plurality of screw rebars 2. It may be a thing. Although illustration is omitted, for example, a mark for cutting is provided at a position corresponding to the size of the screw rebar 2, and when the cartridge 4 is mounted, the first holding part 7 b is made to have an optimum length with scissors or the like. Disconnect. Thereby, even when the 1st clamping part 7b and the 2nd clamping part 8b are inserted to the innermost part, the cartridge 4 can be located in the center of the end surface 2b of the screw reinforcement 2. FIG.

[Third Embodiment]
When the cartridge 4 is pressed by the screw rebar 2 and the receiving member 1, it is preferable that the filler 3 filled in the cartridge 4 is discharged in the intended direction. That is, if it is released to be biased to one of the peripheral portions of the screw rebar 2, the gap between the screw rebar 2 and the receiving member 1 in that direction is appropriately filled with the filler 3, while the peripheral edge on the opposite side There may be a region where the filler 3 is not filled in the portion.

  In order to prevent this, the unsealing strength of the part can be set low so that the container body 4a is unsealed from the top opposite to the end surface 2b of the screw reinforcing bar 2 in the outer skin. For example, as shown in FIG. 5, when a container main body 4a such as a rubber balloon is used, an optional reinforcing tape 9 is pasted on a region other than the top of the surface of the container main body 4a in a state where the filler 3 is filled. . If it is this structure, the filler 3 can be reliably discharge | released to the innermost part of the receiving member 1. FIG.

[Fourth Embodiment]
Further, as shown in FIG. 6, a notch 10 serving as an inlet and an outlet for the filler 3 can be provided in the vicinity of the top of the membrane member forming the container body 4a. The notch 10 is formed in a cross shape, for example, and after the filler 3 is injected therefrom, it is closed with a sealing member 11 such as a tape. The sealing member 11 is made easier to tear than the material of the container body 4a. Thereby, the filling operation of the filler 3 is facilitated, and uniform discharge in all directions is possible.

  In addition to this, the notch 10 is not provided, but the thickness of the top of the container body 4a is made thin so that it can be easily opened, so that the filler 3 is discharged preferentially from the top. Also good.

  If it is these structures, when the container main body 4a is pressed, the filler 3 can be discharged | emitted from a top part, and the filler 3 is uniformly injected with respect to the clearance gap between the screw reinforcement 2 and the receiving member 1 in all directions. can do.

[Fifth Embodiment]
In the case where the holding member A is made of resin, the holding member A can be integrally formed as a support portion on the side of the container main body 4a constituting the cartridge 4. For example, as shown in FIG. 7, a first support portion 7c and a second support portion 8c that exhibit the same function as the holding member A are formed integrally with the container body 4a. In that case, if the distance between the first support portion 7c and the second support portion 8c is formed in advance in accordance with the dimension of the screw rebar 2 to be applied, the pressing force on the screw rebar 2 is appropriate. It becomes. When attaching to the screw rebar 2, quick attachment is possible by simply injecting the filler 3 into the container body 4 a. In particular, when the filler 3 that can be stored for a long period of time is filled in advance, the actual screw rebar 2 connection work becomes more efficient.

Further, when the first member 7 and the second member 8 are formed of a resin material, as shown in FIG. 7, the first support portion 7c and the second support portion 8c are appropriately set to have a cross-sectional shape perpendicular to their longitudinal direction. can do. For example, the outer surface 7c1 of the first support portion 7c and the outer surface 8c1 of the second support portion 8c are formed in a cylindrical shape in accordance with the shape of the space formed by the side surface 2c of the screw rebar 2 and the inner surface of the female screw portion 1a. If it is this structure, the width | variety of the 1st support part 7c and the 2nd support part 8c can be ensured widely, and the pressing force with respect to the side surface 2c of the screw rebar 2 will increase, and the pressing state of both the support parts 7c and 8c will be stabilized.
In this case as well, the container body 4a may be provided with a notch 10 and a sealing member 11 for injecting and discharging the filler 3.

[Sixth Embodiment]
For example, when a two-pack type material composed of a main agent and a curing accelerator is used as the filler 3, a partition 12 is provided inside the container body 4 a as shown in FIGS. In that case, what partitions a main ingredient and a hardening accelerator up and down is preferable. If the partitioning part 12 partitions both agents in the lateral direction, for example, the main agent flows more on one side of the side surface 2c of the screw rebar 2 and the curing accelerator flows more on the opposite side, and mixing of both agents is insufficient. There is a possibility. However, if both agents are in a vertical positional relationship, when the container body 4a is pressed and broken, both agents are likely to be evenly extruded to any part around the screw rebar 2. Therefore, both agents are press-fitted between the male screw portion 2a of the screw rebar 2 and the female screw portion 1a of the receiving member 1 while being mixed well, and the hardening of the main agent becomes uniform regardless of the site.

  In order to easily configure the partition portion 12, for example, the container body 4a filled with the main agent and the curing accelerator individually may be arranged in an overlapping manner. Each container body 4a is provided with the same notch 10 and sealing member 11 as described above. The upper and lower positional relationship between the main agent and the curing accelerator is arbitrary. In addition, a partition 12 may be separately provided in the middle in the vertical direction of one container body 4a. Also in that case, the notch 10 and the sealing member 11 are provided in the partition 12 and the top on the upper side. For example, the main agent is first injected into the lower space and sealed with the sealing member 11, and then the upper side A curing accelerator may be injected into the space.

  Note that when the two-component filler 3 is held in the container body 4a, unlike the case where the two agents are mixed when the cartridge 4 is opened as described above, the operator partitions the container prior to placement on the screw rebar 2. The part 12 may be opened to mix both agents. For example, an individual container individually filled with a main agent and a curing accelerator is placed inside one container body 4a, and an operator deforms the container body 4a arbitrarily to open each individual container first. The two agents are mixed inside the container body 4a. For this purpose, the individual containers and the container main body 4a may be made of different materials and structures, and the strength of the individual containers may be set low. If it is this structure, a main ingredient and a hardening accelerator can be mixed reliably.

  Further, depending on the curing characteristics of the filler 3, when the cartridge 4 is stored for a long time in a state in which the filler 3 is filled in advance, any of the cartridges 4 is distinguished in order to distinguish the filling amount of the filler 3. It is good to color or attach a symbol to the place.

[Seventh Embodiment]
As shown in FIGS. 9A and 9B, the container body 4a can be constituted by a plurality of divided bodies that can be combined with each other. For example, the container body 4a includes a cup-shaped small-diameter first container body 4a1 and a large-diameter second container body 4a2 that can be extrapolated to the first container body 4a1. The first container body 4a1 and the second container body 4a2 can be obtained, for example, by forming a flat aluminum foil into a cup shape. Moreover, you may comprise with a pair of cylindrical cup-shaped thin container by which resin molding was carried out. In short, any configuration can be used as long as at least one of the first container body 4a1 and the second container body 4a2 is filled with the filler 3, and the other container body can be combined with the filler 3 to seal the filler 3. There may be.

  If it is this structure, the filling operation | work of the filler 3 with respect to the cartridge 4 will become very easy. In addition, since the degree of freedom in setting the shape of the cartridge 4 is increased by using the divided configuration, it is easy to obtain the cartridge 4 having a shape that can be easily attached to the end of the screw rebar 2. For example, the connection work between the screw rebar 2 and the receiving member 1. Is even more efficient.

  FIG. 9A shows a state in which the filler 3 is filled between the first container main body 4a1 and the second container main body 4a2, and the cartridge 4 is screwed in such a posture that the large-diameter second container main body 4a2 located on the outer side is downward. It is an example attached to the end surface 2b of the reinforcing bar 2. In the case of this configuration, the first container body 4a1 and the second container body 4a2 are merely inserted into each other, and no special locking structure or the like is provided. The first container body 4a1 having a small diameter is filled with the filler 3, and the second container body 4a2 is extrapolated into the first container body 4a1 so that the bottom surface of the second container body 4a2 comes into contact with the filler 3. The two container bodies 4a2 are substantially integrated with the first container body 4a1. Therefore, after that, the cartridge 4 is fixed to the end surface 2b of the screw rebar 2 using, for example, a double-sided tape 6a.

  In the case of the configuration shown in FIG. 9A, the filler 3 can be released at the innermost part of the receiving member 1 when the screw reinforcing bar 2 is screwed into the receiving member 1. That is, when the cartridge 4 reaches the innermost part of the receiving member 1, the opening side end 4a3 of the second container main body 4a2 is positioned at the innermost part. When the screw rebar 2 is further screwed from this state, the filler 3 inside the container main body 4a is pressed between the end surface 2b of the screw rebar 2 and the inner surface of the receiving member 1 through the wall portion of the container main body 4a, and the container Trying to go outside the body 4a. At that time, the filler 3 is pushed to the innermost portion of the female screw portion 1a of the female screw portion 1a of the receiving member 1 while being pressed against the inner surface of the female screw portion 1a of the second container main body 4a2. It is discharged into the inside of the female screw portion 1a from the opening side end portion 4a3. By such discharge, the filler 3 is applied to the entire inner surface of the female screw portion 1a. However, when the screw rebar 2 is completely screwed, the male screw portion 2a and the female screw portion 1a of the screw rebar 2 are During this time, the filler 3 is reliably filled.

  On the other hand, as shown in FIG. 9B, after the first container body 4 a 1 and the second container body 4 a 2 are combined with each other, the first container body 4 a 1 positioned inside may be attached to the end surface 2 b of the screw rebar 2. . In this case, since the opening side end 4a3 of the second container main body 4a2 faces the screw rebar 2 side, when the screw rebar 2 is screwed into the female screw portion 1a, the opening side end 4a3 is formed of the female screw portion 1a. It is prevented from being caught on the inner surface. Thereby, the cartridge 4 can be moved to the innermost part of the female screw portion 1a while the screw rebar 2 is screwed, and the filler 3 is placed between the male screw portion 2a and the female screw portion 1a. It can be filled stably.

[Eighth Embodiment]
As shown in FIGS. 10A and 10B, the first container main body 4a1 and the second container main body 4a2 can be configured to be engageable or engageable with each other. Here, the first container body 4a1 is a cup-shaped container, and the second container body 4a2 is provided with a fitting portion 4a5 that fits into the opening side end 4a4 of the first container body 4a1. The first container body 4a1 and the second container body 4a2 can be made of any material such as paper, resin, and aluminum foil.

  FIG. 10A shows an example in which the opening side end 4a4 of the first container body 4a1 is located at the tip end opposite to the screw rebar 2. The 1st container main body 4a1 is fixed to the end surface 2b of the screw reinforcement 2 using the double-sided tape 6a, for example. If it is this structure, when the container main body 4a is pressed by the screw reinforcement 2 and the receiving member 1, and the fitting of the second container main body 4a2 is released, the filler 3 is discharged to the innermost part of the female screw portion 1a. Can do. Therefore, the filler 3 can be reliably filled between the male screw portion 2a and the female screw portion 1a.

  FIG. 10B shows an example in which the first container body 4 a 1 is positioned at the tip end opposite to the screw rebar 2. The first container body 4a1 and the second container body 4a2 can be made of various materials. Therefore, for example, the first container body 4a1 may be formed of a very thin member in order to facilitate the discharge of the filler 3. In such a case, in order to fix the cartridge 4 to the end surface 2b of the screw reinforcing bar 2, the second container body 4a2 which is a substantial lid member is given a certain degree of rigidity, and the double-sided tape 6a is attached thereto. The structure to stick can also be taken.

  In the case of this configuration, the discharge position of the filler 3 is the end of the cartridge 4 on the screw rebar 2 side. However, if the first container body 4a1 is thin and easy to open as described above, even if the filler 3 is released on the screw rebar 2 side, the first container main body 4a1 is subsequently screwed into the first container. The main body 4a1 is easily crushed. Therefore, since the discharged filler 3 flows to the innermost part of the female screw part 1a, it can be reliably distributed between the male screw part 2a and the female screw part 1a.

[Ninth Embodiment]
As shown in FIGS. 11 (a) and 11 (b), the cartridge 4 may not have a lid and one of them may be left open. That is, the filler 3 held inside the cartridge 4 is held by the cooperation of the cartridge 4 and the screw rebar 2 or is held inside by appropriately setting the posture of the cartridge 4.

  FIG. 11A shows a case where a cup-shaped first container body 4 a 1 without a lid is filled with the filler 3 and the opening side end 4 a 4 of the first container body 4 a 1 is externally fitted to the tip of the screw rebar 2. is there. In this case, the first container body 4a1 is filled with a predetermined amount of filler 3, and the first container body 4a1 is quickly fitted into the end of the screw rebar 2 so that the filler 3 does not sag. At that time, if the first container body 4a1 is pushed too strongly into the screw rebar 2 side, the filler 3 overflows. Therefore, it is preferable to keep the pushing amount of the first container main body 4a1 at a level where the filler 3 slightly overflows from the opening side end 4a4 or less. When the first container main body 4a1 is attached, as shown in FIG. 11A, the first container main body 4a1 is fixed by fixing the inner side surface of the opening side end 4a4 and the outer surface of the screw rebar 2 with a double-sided tape 6a or the like. The attachment of 4a1 becomes more stable.

  In the case of this embodiment, it is preferable that the material constituting the first container body 4a1 be made to be easily crushed as much as possible. That is, when the first container body 4a1 has excessive rigidity, the screw rebar 2 enters the inside of the first container body 4a1, and the internal filler 3 is moved from the position of the opening side end 4a4 of the first container body 4a1. There is a possibility of being discharged into the internal thread 1a. In this case, there is a possibility that the filler 3 does not reach the position facing the side surface of the first container body 4a1 in the inner surface of the female screw portion 1a. Therefore, the first container body 4a1 is preferably made of a material that can be easily crushed, such as paper or aluminum foil.

  With this configuration, the configuration of the cartridge 4 is extremely simple, and the attachment of the cartridge 4 to the screw rebar 2 is easy, so the connection work of the screw rebar 2 becomes efficient.

  Such a cartridge 4 may be configured as shown in FIG. That is, the posture in which the filler 3 does not spill is maintained while using the first container body 4a1 that is open on one side. After the screw rebar 2 is brought into a substantially connected posture, the first container body 4a1 filled with the filler 3 is attached to the end surface 2b of the screw rebar 2 with a double-sided tape 6a or the like.

  If the first container body 4a1 can be reliably moved to the innermost part of the member 1 by this method, the filler 3 can be surely discharged to the innermost part of the female screw part 1a. Therefore, the filler 3 can be reliably spread in the gap between the screw rebar 2 and the receiving member 1. Further, according to the present method and the method shown in FIG. 11A, the cartridge 4 does not have a lid, and only the members constituting the first container body 4a1 remain in the receiving member 1. Therefore, the amount of foreign matter existing between the male screw portion 2a and the female screw portion 1a is minimized, and the reliability of the joint portion is improved.

  In FIG. 11B, the upper portion of the first container body 4a1 is open. However, the wall of the first container body 4a1 is extended a little further upward and filled with the filler 3, and then the extended portion. The lid portion may be simply formed by twisting. By doing so, the posture which the cartridge 4 can take becomes wide, and the connection workability of the screw rebar 2 is further improved.

[Tenth embodiment]
In addition to the above injection method, the cartridge 4 can be temporarily fixed to the receiving member 1 before the screw rebar 2 is attached to the receiving member 1. When the screw rebar 2 is screwed to the receiving member 1 while the cartridge 4 is disposed on the end surface 2 b of the screw rebar 2, the burden of the screwing operation increases due to the weight of the screw rebar 2. For this reason, it is difficult to align the tip of the screw rebar 2 with the female screw portion 1a, and the cartridge 4 may interfere with the periphery of the female screw portion 1a.

  Therefore, as shown in FIGS. 12A and 12B, the cartridge 4 can be temporarily fixed to the inner surface of the female screw portion 1a in advance. For example, the temporary fixing member 13 is attached to the lower surface of the container body 4a with a double-sided tape 6a or the like. The temporary fixing member 13 is formed of a small volume member such as paper having a certain degree of rigidity or a thin resin plate. The outer diameter of the temporary fixing member 13 is configured to be larger than the inner diameter of the female screw portion 1a of the receiving member 1. The shape is a cross shape or the like, and a gap is provided in the periphery so that the filler 3 can easily flow downward when the container body 4a is later opened.

  When the container body 4a and the temporary fixing member 13 are pushed into the female screw portion 1a from below using various rod-like members, the end of the temporary fixing member 13 is rubbed against the inner surface of the female screw portion 1a to bend and deform. The return prevention function is demonstrated. Thereby, the cartridge 4 can be temporarily fixed inside the receiving member 1.

  With this method, since the cartridge 4 is lightweight, the burden of the work is small. Therefore, the positioning of the cartridge 4 with respect to the female screw portion 1a is facilitated, and the arrangement work of the cartridge 4 is made efficient. The insertion depth of the cartridge 4 with respect to the female screw portion 1a is arbitrary as long as the cartridge 4 does not interfere with the bottom surface 1b of the female screw portion 1a and the filler 3 spills out. As long as the end portion of the screw rebar 2 is screwed into the female screw portion 1a, the cartridge 4 can be pushed in by the screw rebar 2 being screwed.

  Further, the cartridge 4 can also use a first container body 4a1 having an upper opening as shown in FIG. A predetermined amount of filler 3 is filled immediately before the first container body 4a1 is inserted into the female screw portion 1a, and is attached to the temporary fixing member 13 and inserted into the female screw portion 1a. In this case, since the posture of the first container body 4a1 is a posture in which the temporary fixing member 13 is positioned downward, it does not matter so much that the upper portion is open. If it is this structure, since discharge | emission of the filler 3 will be performed smoothly without any obstruction, the filler 3 can be reliably spread in the clearance gap between the external thread part 2a and the internal thread part 1a.

  The filling material injection method for the threaded reinforcing bar joint of the present invention can be widely applied to a reinforcing bar connecting part in which a threaded reinforcing bar having a male threaded part is screwed into a receiving member having a female threaded part and fixed with a filler.

DESCRIPTION OF SYMBOLS 1 Receiving member 1a Female thread part 2 Screw rebar 2a Male thread part 2b End surface 3 Filler 4 Cartridge 4a Container main body 6 Adhesive material 12 Partition part 13 Temporary fixing member A Holding member

Claims (8)

When screwing and joining a screw rebar having a male screw part to a receiving member having a female screw part,
A cartridge in which a filler that fills a gap between the female screw portion and the male screw portion is held is disposed between the end portion of the screw rebar and the inner surface of the receiving member,
As the screw rebar is screwed with respect to the receiving member, the end surface of the screw rebar and the inner surface of the receiving member press at least one of the cartridge and the filler to remove the filler from the cartridge. Release,
A method of injecting a filler into a screw rebar joint, wherein the filler is pressed into a gap between the male screw and the female screw by further screwing of the screw rebar.   2. The method for injecting a filler into a threaded reinforcing bar joint according to claim 1, wherein when the threaded reinforcing bar is screwed, the cartridge is fixed to an end of the threaded reinforcing bar using an adhesive or an adhesive.   The method for injecting a filler into a screw reinforcing bar joint according to claim 1, wherein the cartridge is held by a holding member attached to an end of the screw reinforcing bar when the screw reinforcing bar is screwed.   2. The method for injecting a filler into a threaded reinforcing bar joint according to claim 1, wherein, when the threaded reinforcing bar is screwed, the cartridge is fixed to an end of the threaded reinforcing bar using a support provided on a part of the cartridge. .   2. The method for injecting a filler into a screw reinforcing bar joint according to claim 1, wherein the cartridge is fixed to an inner surface of the receiving member in advance by a temporary fixing member when the screw reinforcing bar is screwed.   When screwing a screw rebar having a male screw part into a receiving member having a female screw part, a predetermined amount of filling material to be filled is held between the male screw part and the female screw part. A container main body disposed between the end portion and the inner surface of the receiving member, and the screw rebar end surface and the inner surface of the receiving member as the screw reinforcing bar is screwed relative to the receiving member; A cartridge capable of releasing the filler from the container body by pressing at least one of the container body and the filler filled in the container body.   The cartridge according to claim 6, wherein the container body is composed of a plurality of divided bodies that can be combined with each other. The filler has a main agent and a curing accelerator that promotes curing of the main agent by mixing with the main agent,
The cartridge according to claim 6 or 7, further comprising: a partitioning portion for separating and storing the main agent and the curing accelerator inside the container main body.

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