JP2010106623A - Injection nozzle and pinning method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an injection nozzle capable of sufficiently injecting an adhesive into a deep portion of an insertion and filling hole to a shallow portion thereof, and a pinning method using the injection nozzle. <P>SOLUTION: The injection nozzle 13 attached to an injector body 12 is used for a pinning method in which the adhesive R is injected into the insertion and filling hole 8 passing through a finishing material 3 and drilled up to a predetermined depth in a concrete building frame 2 while sealing an opening 10 of the insertion and filling hole 8. The injection nozzle includes: a body joint 21 which has a base end side detachably attached to the injector body 12; a nozzle 22 which has a base end fixed to the tip side of the body joint 21 the tip of which has a discharge opening 42, and which is inserted into the insertion and filling hole; a movable seal member 23 which is slidably attached to the nozzle 22, abuts on the opening 10 of the insertion and filling hole 8 in the injection of the adhesive, and seals the opening; and a locking/unlocking mechanism 24 which holds the movable seal member 23 and is fixed to an arbitrary position of the nozzle 22. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an injection nozzle for a pinning method used for repairing a wall body such as an outer wall or an inner wall in which so-called “floating” has occurred, and a pinning method using the same.

Conventionally, as an injection nozzle of this type, an injection needle-shaped inner cylinder with a discharge port formed at the tip, an outer cylinder that slidably holds the inner cylinder on the inner peripheral surface and uses the inside as an adhesive flow path, Have been known (see Patent Document 1).
In the pinning method using this injection nozzle, a hole is drilled in the repaired part of the outer wall consisting of finishing material (tile and stone), mortar and concrete frame, and then the resin with the injection nozzle installed in this hole. Injection of an adhesive (epoxy resin adhesive) is performed using an injector. Specifically, when the injection nozzle is pressed against the opening of the insertion hole and the resin injector is pumped, the inner cylinder first moves forward upon receiving the adhesive injection, and its discharge port is inserted. Reach the bottom of the hole. Thereafter, the adhesive starts to be discharged from the discharge port, and the adhesive is gradually filled from the deepest portion of the insertion hole.
JP 2003-147971 A

  In such a conventional injection nozzle, since the adhesive can be injected from the deepest part of the insertion hole, there is no air accumulation in the deepest part of the insertion hole. If the gap (“floating”) is large, the adhesive may flow into the gap and the adhesive may not reach the shallow position of the insertion hole. In particular, when “floating” occurs between the finishing material and the mortar, the above method cannot sufficiently inject the adhesive into the “floating”. It is necessary to perform injection by pulling out the injection nozzle. However, in this case, since the sealing with respect to the opening of the insertion hole is broken, it is impossible to inject sufficient adhesive into such a portion.

  An object of the present invention is to provide an injection nozzle capable of sufficiently injecting an adhesive from a deep portion to a shallow portion of the insertion hole and a pinning method using the injection nozzle.

  The injection nozzle of the present invention is used by being mounted on an injector body, and is used for pinning in which an adhesive is injected into an insertion hole penetrating a finishing material and drilling a casing to a predetermined depth while sealing the opening. In the injection nozzle for construction method, the base end side is detachably attached to the injector body, the base end portion is fixed to the front end side of the main body joint portion, has a discharge port at the front end portion and an insertion hole A movable seal member that is slidably attached to the nozzle and that is in contact with and seals the opening of the insertion hole when the adhesive is injected, and that holds the movable seal member and A lock / unlock mechanism for fixing at an arbitrary position is provided.

  According to this configuration, the adhesive is injected into the insertion hole by sending the adhesive from the injector body in a state where the opening of the insertion hole is sealed by the movable seal member attached to the nozzle. . At that time, if the movable seal member is fixed to the base end side of the nozzle by the lock / unlock mechanism, the adhesive is injected into the deep part of the insertion hole, and if it is fixed to the tip end side of the nozzle, the adhesive The agent is injected into the shallow part of the insertion hole. In addition, since the injection into the deep part of the insertion hole and the injection into the shallow part can be performed with the opening part of the insertion hole sealed, a sufficient amount of adhesive can be applied to the multiple “floats”. Can be spread. The drive body is concrete, wooden, or the like, and the finishing material is mortar, tile, stone, or the like. Furthermore, it is preferable to use an epoxy resin as the adhesive. The depth at which the nozzle is inserted into the insertion hole is measured in advance, and is adjusted by moving the movable seal member relative to the nozzle in accordance with the measurement result.

  In this case, the lock / unlock mechanism has a main body holding portion that is slidably attached to the nozzle and a lock hole into which the nozzle is loosely inserted, and is inclined with respect to the nozzle. An operation lever rotatably supported by the main body holding portion between a fixing position where the hole edge portion of the lock hole bites the nozzle to be fixed thereto and a fixing release position where the inclination is released. ,preferable.

  According to this configuration, by tilting the operating lever with respect to the nozzle, the hole edge portion of the lock hole is squeezed into the fixed position. On the other hand, the fixed release position is obtained by releasing the tilt of the operation lever with respect to the nozzle. That is, by moving the operation lever between the fixed position and the fixed release position, the movable seal member with respect to the nozzle can be fixed and slidable, and the protruding dimension of the nozzle with respect to the movable seal member can be freely adjusted. Can do. Thereby, an adhesive agent can be inject | poured into the arbitrary positions of the depth direction of an insertion hole.

  In this case, it is preferable that the lock / unlock mechanism further includes a biasing member that biases the operation lever toward the fixed position.

  According to this configuration, the operation lever can be automatically tilted with respect to the nozzle.

  In this case, it is preferable that the lock / unlock mechanism further includes a stopper for restricting the rotation of the operation lever to the fixed release position.

  According to this configuration, since the position of the operation lever is regulated at the fixing release position, the fixing release operation can be performed stably, and the operability can be improved.

  In this case, the operation lever is formed in a plate shape with a lock plate portion having a lock hole and an operation plate portion serving as a finger hook portion, and is rotated to the main body holding portion at a boundary portion between the lock plate portion and the operation plate portion. It is preferably supported in a movable manner.

  The biasing member is preferably a coil spring interposed between the main body holding portion and the operation plate portion.

  The stopper is a pin-shaped member protruding from the main body holding portion and extending toward the operation plate portion, and the coil spring is a compression coil spring disposed coaxially with the stopper so as to surround the stopper. It is preferable.

  Furthermore, it is preferable that the urging member is a torsion coil spring wound around the rotation shaft of the operation lever with respect to the main body holding portion.

  According to these configurations, the lock / unlock mechanism can be configured simply and compactly.

  The pinning method of the present invention is a pinning method for repairing a wall body made of a casing and a finishing material by using an adhesive injector comprising the injection nozzle described above and an injector main body equipped with the injection nozzle. A punching process for penetrating and drilling the housing to a predetermined depth to form an insertion hole; an adhesive injection process for injecting an adhesive into the loading hole while sealing the opening by an adhesive injector; And a loading step of loading an anchor pin for anchoring the finishing material into the housing in the insertion hole into which the agent has been injected.

  According to this configuration, since the protruding dimension of the nozzle with respect to the movable seal member can be freely adjusted, the adhesive can be uniformly injected from the deep part to the shallow part of the insertion hole, and the wall body can be repaired. It can be done well.

  Hereinafter, a pinning method using an adhesive injector equipped with an injection nozzle according to the first embodiment will be described with reference to the accompanying drawings. This pinning method inserts the injection nozzle of the adhesive injector from the opening into the insertion hole drilled in the repaired part of the inner wall (wall body) such as the outside wall of the building where the “floating” has occurred, or a hole or hole. Then, an adhesive is injected, and then an anchor pin is inserted and repaired. Hereinafter, the case where the outer wall of a building is constructed will be described.

  As shown in FIG. 1, an outer wall 1 of a building is composed of a concrete frame (frame) 2 as a foundation and a finishing material 3 applied to the surface thereof. , And decorative material 5 such as tiles and stones attached thereto. In this case, it is assumed that the first floating portion 6 is generated between the concrete housing 2 and the mortar 4 and the second floating portion 7 is generated between the mortar 4 and the decorative material 5. Further, an insertion hole 8 is formed in the outer wall 1 so as to penetrate the decorative material 5 and the mortar 4 and perforate the concrete casing 2 to a predetermined depth so as to repair the first floating portion 6 and the second floating portion 7. Has been. Then, the outer wall 1 is repaired by injecting the adhesive R by the adhesive injector 11 and inserting the anchor pin 9 (see FIGS. 6 and 7) into the insertion hole 8. .

  Here, the adhesive injector 11 will be described with reference to FIG. The adhesive injector 11 includes a pump-type injector main body 12 that mainly supplies the adhesive R, and a pinning method injection nozzle 13 that is detachably attached to the tip of the injector main body 12. It is configured. The injector body 12 includes a cylindrical casing 14 extending to the proximal end side, a pump body 15 to which the casing 14 is detachably attached, a substantially “L” -shaped lever 16 held by the pump body 15, and It is equipped with. The casing 14 is filled with an adhesive R, and the casing 14 is set on the pump body 15 from the base end side, and the injection nozzle 13 is mounted from the front end side. The injector body 12 is configured to discharge the adhesive R from the injection nozzle 13 by a certain amount by manually operating (pumping) the lever 16. In the present embodiment, an epoxy resin adhesive is used as the adhesive R, but the present invention is not limited to this. For example, various organic adhesives may be a viscous inorganic adhesive or the like.

  As shown in FIGS. 2 and 3, the injection nozzle 13 has a main body joint portion 21 that is detachably attached to the injector main body 12 on the base end side, and extends from the main body joint portion 21 and has a discharge port 42 at the tip. And a movable seal that is slidably attached to the nozzle 22 and that abuts against and seals the opening 10 of the insertion hole 8 when the adhesive R is injected. A member 23 and a lock / unlock mechanism 24 configured to hold the movable seal member 23 and be fixed to an arbitrary position of the nozzle 22 are provided.

  The lock / unlock mechanism 24 is slidably mounted on the nozzle 22 together with the movable seal member 23. By unlocking the lock / unlock mechanism 24, it can be slid with respect to the nozzle 22 together with the movable seal member 23, and is fixed to the nozzle 22 by being locked. That is, the relative protrusion dimension of the nozzle 22 with respect to the movable seal member 23 is adjusted by the lock / unlock mechanism 24 (details will be described later). When the movable seal member 23 is abutted against the opening 10 of the insertion hole 8 and the injector main body 12 is pumped, the adhesive R delivered from the injector main body 12 flows from the main body joint portion 21 to the nozzle 22 and is discharged from the discharge port. 42 is discharged.

  The main body joint portion 21 is made of stainless steel, steel, or the like, and includes a connection portion 31 that is attached to the injector main body 12 and a cap 32 that is screwed onto the tip of the connection portion 31 to fix the nozzle 22. Has been. The connecting portion 31 includes a connecting portion main body 33 having a tool hook portion, a proximal male screw portion 34 extending from the connecting portion main body 33 toward the injector main body 12 and screwed into the injector main body 12, and a connecting portion. The main body 33 is integrally formed with a tip male thread portion 35 that extends toward the nozzle 22 and is screwed into the cap 32. In addition, an adhesive flow path 37 whose upstream end is connected to the injector main body 12 and whose downstream end is connected to the nozzle 22 is formed in the axial center (inside) of the connection portion 31. By screwing the proximal male screw portion 34 into the injector body 12, the body joint portion 21 is detachably attached to the injector body 12, and the adhesive channel 37 communicates with the discharge portion of the injector body 12. It is supposed to be.

  The cap 32 is a cap nut-like member, and a nozzle hole 36 into which the nozzle 22 is inserted is formed at the center of the tip surface, and a female screw is formed on the inner peripheral surface. In a state where the base portion of the nozzle 22 is directed to the tip male screw portion 35, the nozzle 22 is inserted and the cap 32 is screwed to the tip male screw portion 35, whereby a flange portion 43 of the nozzle 22 (described later). ) Is sandwiched between the distal male screw portion 35 and the cap 32, and the nozzle 22 is fixed to the connection portion 31. In this state, the adhesive flow path 37 of the connection portion 31 and the injection flow path 41 (described later) of the nozzle 22 communicate with each other.

  The nozzle 22 is made of a metal pipe such as stainless steel or steel, or a resin pipe, and has an injection flow channel 41 communicating with the adhesive flow channel 37 inside, and is formed like a straight injection needle. A discharge port 42 connected to the obliquely cut injection channel 41 is formed at the front end of the nozzle 22, and a flange portion 43 that is abutted against the front male screw portion 35 is formed at the rear end. Yes. The adhesive R flowing from the adhesive flow path 37 of the main body joint portion 21 flows through the injection flow path 41 and is injected into the insertion hole 8 from the discharge port 42. The length of the nozzle 22 is formed so that the protruding dimension from the movable seal member 23 is about 100 mm at a relatively advanced position so as to correspond to the deepest possible insertion hole 8. The diameter of 22 is formed to 2-4 mm, for example.

  The movable seal member 23 is made of a solvent-resistant elastic material such as fluorine rubber or butyl rubber, and includes a tapered portion 45 having a tapered surface 44 that seals the opening 10 of the insertion hole 8, and the tapered portion 45. It is integrally formed with a fixed cylinder portion 46 that is continuous with the base end side. Further, an insertion hole 47 is formed in the axial center (inside) of the movable seal member 23 so that the movable seal member 23 is slidably attached to the nozzle 22. The tapered portion 45 is formed in a truncated cone shape that narrows toward the distal end, and the distal end portion is inserted into the opening 10 to seal the insertion hole 8. The fixed cylinder portion 46 is formed in a cylindrical shape, and the base end surface is fixed to the lock / unlock mechanism 24.

  As shown in FIGS. 4 and 5, the lock / unlock mechanism 24 holds the movable seal member 23, and has a main body holding portion 51 formed in a “T” cross section and a main body holding portion 51. An operation lever 52 rotatably supported like a seesaw, a compression coil spring (biasing member: coil spring) 53 interposed between the main body holding portion 51 and the operation lever 52, and an operation from the main body holding portion 51. And a stopper 54 projecting toward the lever 52. The main body holding portion 51 and the operation lever 52 are made of a metal material such as stainless steel or steel in consideration of cleaning with a solvent.

  The main body holding part 51 projects from a seal fixing part 61 for fixing the movable seal member 23 and a longitudinally intermediate position of the seal fixing part 61, and a lever support part 62 for rotatably supporting the operation lever 52. And are integrally formed. The seal fixing portion 61 is formed with a nozzle through hole 57 that is positioned coaxially with the insertion hole 47 formed in the movable seal member 23 and that allows the nozzle 22 to pass through slidably. Further, a stopper 54 protrudes from the surface of the seal fixing portion 61 on the compression coil spring 53 side, and is positioned coaxially with the stopper 54 so as to be engaged so that the compression coil spring 53 is positioned. A spring protrusion 64 is provided. The seal fixing portion 61 and the movable seal member 23 may be configured to be simply bonded, but the anchor protrusion is extended from the seal fixing portion 61 side, and the movable seal member 23 is bonded and fixed so as to pierce it. (Not shown). A “U” -shaped cutout portion 65 for supporting the operation lever 52 is formed at the distal end portion of the lever support portion 62, and the operation lever 52 can be rotated with both ends held in the cutout portion 65. A rotation support shaft (rotation shaft) 66 that is movably supported is attached.

  The operation lever 52 is integrally formed in a plate shape by a lock plate portion 72 through which a lock hole 71 into which the nozzle 22 is loosely inserted is formed and an operation plate portion 73 which is a finger-hanging portion for operation. Then, at the boundary portion between the lock plate portion 72 and the operation plate portion 73, that is, at the intermediate portion in the longitudinal direction of the operation lever 52, the lever support portion 62 is supported so as to be rotatable like a seesaw. The center of the back surface of the operation plate 73 is a portion where the stopper 54 and the compression coil spring 53 come into contact with each other. Although omitted in the drawing, it is preferable to provide a spring protrusion 64 also on this portion. In addition, since the operation board part 73 is operated in the pushing direction, it is preferable to give a non-slip process to the surface. However, in the actual operation, the operation plate 73 and the seal fixing portion 61 are picked with the thumb and index finger, and therefore it is preferable to apply a non-slip process to this portion of the seal fixing portion 61.

  A lock hole 71 into which the nozzle 22 is loosely inserted is formed through substantially the center of the lock plate portion 72. The lock hole 71 is positioned coaxially with the nozzle through hole 57 and has a slightly larger diameter than the nozzle through hole 57 to allow the operation lever 52 to rotate. Although details will be described later, when the operation lever 52 is tilted with respect to the nozzle 22 by the rotation, the hole edge 76 of the lock hole 71 is fixed to the nozzle 22 by being squeezed (fixed position), and the tilt is released. To release the lock (fixed release position). That is, the operation lever 52 (lock plate portion 72) has a fixed position where the hole edge portion 76 of the lock hole 71 is not in contact with the nozzle 22, and a fixed release position where the position is restricted by the stopper 54. Between, it is comprised so that rotation is possible.

  The compression coil spring 53 is provided coaxially with the stopper 54 so as to surround the stopper 54 and interposed between the seal fixing portion 61 and the operation plate portion 73 of the operation lever 52. The compression coil spring 53 receives the seal fixing portion 61 and separates the operation plate portion 73 of the operation lever 52 that rotates about the rotation support shaft 66 from the seal fixing portion 61, and at the same time the lock plate portion 72. It is biased in the direction of approaching the seal fixing part 61. The base end of the compression coil spring 53 is detachably attached to the seal fixing portion 61 by engaging with the outer peripheral surface of the spring protrusion 64. In this case, the stopper 54 functions as a guide with respect to the compression coil spring 53, and even if a compression force acts on the compression coil spring 53, it does not bend or come off. Note that the compression coil spring 53 may not be provided. In such a case, the operation plate portion 73 of the operation lever 52 is manually separated from the seal fixing portion 61 and at the same time, the lock plate portion 72 is brought close to the seal fixing portion 61.

  The stopper 54 is formed in a columnar shape or a prismatic shape, and is provided on the seal fixing portion 61 so as to protrude in parallel to the opposite side of the nozzle 22 with the lever support portion 62 interposed therebetween. The discharge dimension of the stopper 54 is a position where the operating lever 52 abutted against the stopper 54 is substantially parallel to the seal fixing portion 61, and the stopper 54 is a position where the operated operating lever 52 is parallel to the seal fixing portion 61. Regulate position. The shape of the stopper 54 is arbitrary.

  Here, with reference to FIG. 5, the operation (rotation operation) of the operation lever 52 will be described. As described above, the operation lever 52 is supported rotatably with respect to the lever support portion 62, and the operation plate portion 73 is separated from the seal fixing portion 61 and the lock plate portion 72 is sealed by the compression coil spring 53. It is urged in a direction to approach the fixing portion 61. When the operation plate portion 73 is pushed toward the seal fixing portion 61 against the compression coil spring 53 (actually, the operation lever 52 and the seal fixing portion 61 are picked), the operation lever 52 is connected to the seal fixing portion 61. At the parallel position, it comes into contact with the stopper 54 and becomes a fixed release position (see FIG. 5A). As a result, the lock / unlock mechanism 24 enters the unlocked state. That is, the lock / unlock mechanism 24 and the movable seal member 23 are slidable with respect to the nozzle 22. Thereby, the protrusion dimension of the nozzle 22 with respect to the movable seal member 23 can be adjusted.

  On the other hand, when the operated finger is loosened, the operation lever 52 is pushed back by the compression coil spring 53. Thereby, the lock plate portion 72 is inclined with respect to the nozzle 22 and comes into contact so that both hole edge portions 76 and 76 of the lock hole 71 bite the nozzle 22 (fixed position). Specifically, in the lock hole 71, the hole edge 76 on the back side bites the nozzle 22 on the tip side, and the hole edge 76 on the front side bites the nozzle 22 on the base end side. As a result, a bending force (couple) acts on the nozzle 22, and the nozzle 22 is fixed to the operation lever 52 (lock hole 71) by a strong frictional force generated thereby (see FIG. 5B). Further, at the time of injecting the adhesive, a pressing force that abuts the movable seal member 23 against the opening 10 of the insertion hole 8 acts on the lock hole 71 via the nozzle 22. Thereby, the lock hole 71 is strongly gnawed by the nozzle 22, and the lock / unlock mechanism 24 is locked to the nozzle 22, that is, the movable seal member 23 is firmly fixed to the nozzle 22.

  As described above, the discharge dimension of the nozzle 22 is adjusted by moving the movable seal member 23 together with the lock / unlock mechanism 24 with respect to the nozzle 22 in a state where the operation lever 52 is moved to the fixed release position. As a result, the distance between the movable seal member 23 and the discharge port 42 of the nozzle 22 is adjusted in length, and the adhesive R can be injected at an arbitrary position in the depth direction of the insertion hole 8.

  In actual injection work, first, the protrusion dimension of the nozzle 22 with respect to the movable seal member 23 is adjusted so that the discharge port 42 reaches the deepest portion corresponding to the depth of the insertion hole 8, and the adhesive R is applied to this portion. An injection is performed. Subsequently, after adjusting the protruding dimension of the nozzle 22 to a position corresponding to the first floating portion 6 of the insertion hole 8, the adhesive R is injected, so that the adhesive R spreads in the first floating portion 6. Injected as follows. Finally, after adjusting the protruding dimension of the nozzle 22 to a position corresponding to the second floating portion 7 of the insertion hole 8, the adhesive R is injected so that the adhesive R is applied to the second floating portion 7. Infused to spread.

  Next, with reference to FIG. 6 and FIG. 7, the pinning method to the outer wall 1 using said adhesive injection device 11 is demonstrated. In this pinning method, a hammer or the like is used to hit the outer wall 1, and based on the percussion sound, the repaired portion of the outer wall 1, that is, the first floating portion 6 between the concrete frame 2 and the mortar 4, and the mortar 4 and the decorative material are used. The second floating portion 7 is searched for and the drilling position of the insertion hole 8 is determined. Following this, after the marking has been performed at the drilling position, a punching process is performed in which the finishing material 3 is penetrated and the housing 2 is drilled to a predetermined depth to form the insertion hole 8, and an adhesive injector 11 Thus, the finishing material 3 is anchored to the housing 2 in the adhesive injection step of injecting the adhesive R into the insertion hole 8 while sealing the opening 10 and the insertion hole 8 into which the adhesive R has been injected. A pin loading step of loading anchor pins 9 for the purpose.

  In the drilling step, the insertion holes 8 are drilled at the drilling positions of the marked outer wall 1 using a drilling tool 74 such as a diamond core drill. That is, the concrete casing 2 is drilled to a predetermined depth so as to penetrate the decorative material 5 and the mortar 4 to form the insertion hole 8 (see FIG. 6A). At this time, the outer wall 1 is perforated at a right angle, and the perforation depth of the concrete frame 2 is 30 mm or more. The insertion hole 8 is formed as a straight hole having a diameter (1 mm to 2 mm thick) that is slightly larger than the anchor pin 9 so that the anchor pin 9 can be loosely fitted. Thereafter, in order to remove the chips and the like of the concrete housing 2 from the insertion hole 8, it is removed by squirting with a blower or the like, or suctioning, cleaning with a vacuum dust collector or the like (not shown). However, in the case of drilling using cooling water and the chips flowing out together with the cooling water, this removal step is omitted.

  In the adhesive injection step, after the protrusion dimension of the nozzle 22 is adjusted sufficiently long, the nozzle 22 is inserted into the deepest portion of the insertion hole 8 (see FIG. 6B). Next, the lock / unlock mechanism 24 is unlocked, and the opening 10 is sealed (pressed) by the tapered portion 45 of the movable seal member 23, and the lock / unlock mechanism 24 is locked to the nozzle 22. It fixes to (refer FIG.6 (c)). Then, the lever 16 of the injector main body 12 is operated (pumped) to inject the adhesive R into the insertion hole 8. When the pumping is started, the adhesive R is discharged from the discharge port 42 of the nozzle 22, and the adhesive R is gradually injected from the deepest portion of the insertion hole 8. Eventually, the adhesive R reaches a position in front of the first floating portion 6.

  Here, while maintaining the injection posture of the adhesive injector (injection nozzle 13) 11, the lock / unlock mechanism 24 is unlocked, and the protruding dimension of the nozzle 22 is adjusted to the position of the first floating portion 6, The lock / unlock mechanism 24 is brought into the locked state, and pumping is started again (FIG. 7A). When the adhesive R injection into the first floating portion 6 can be sensed from the weight of the pumping, subsequently, the protruding dimension of the nozzle 22 is adjusted to match the position of the second floating portion 7 as described above. . Here, pumping is performed again, and the adhesive R is sufficiently injected also into the second floating portion 7 (see FIG. 7B). In addition to the first floating portion 6 and the second floating portion 7, even if there is another floating portion such as an adjustment mortar, the adhesive R is injected in the same procedure as described above.

  In the pin insertion process, the insertion is performed while guiding the pin body of the anchor pin 9 into the insertion hole 8 into which the adhesive R has been injected (see FIG. 7C). The anchor pin 9 is inserted into the deepest portion so as to push away the adhesive R in the insertion hole 8. Along with this, the adhesive R flows into the gap so as to conform to the pin body portion, and a part thereof is pushed out toward the opening portion 10 of the insertion hole 8. When the tip of the anchor pin 9 reaches the deepest part, the head of the anchor pin 9 closes the opening 10.

  In this case, in the adhesive injection step, if the volume of the uninjected portion where the adhesive R generated after the nozzle 22 is pulled out is not injected and the volume of the anchor pin 9 are substantially the same, When the anchor pin 9 is inserted into the insertion hole 8, the insertion hole 8 can be substantially filled with the adhesive R with almost no leakage of the adhesive R from the insertion hole 8. Note that a counterbore hole may be formed in the decorative material 5 and the head of the anchor pin 9 may be locked to this portion (not shown). In such a case, a makeup cap for closing the opening 10 is provided separately. Moreover, also when using the anchor pin with an injection hole, it is preferable to inject | pour the adhesive agent R as mentioned above, before loading the anchor pin with an injection hole.

  Next, the injection nozzle 13 according to the second embodiment will be described with reference to FIG. In this injection nozzle 13, the structure of the urging member is different from that of the first embodiment. In this case, the urging member is constituted by a torsion coil spring 75 wound around the rotation support shaft 66. In this case, the torsion coil spring 75 urges the operation plate portion 73 away from the seal fixing portion 61 and urges the lock plate portion 72 closer to the seal fixing portion 61 in the same manner as the compression coil spring 53 described above. Yes.

  According to the above configuration, the protrusion dimension of the nozzle 22 with respect to the movable seal member 23 can be freely adjusted by sliding and locking the nozzle 22 with the lock / unlock mechanism 24 unlocked. From the deepest part of the insertion hole 8 to the shallow part, it is possible to spread the adhesive R evenly over a desired part (the floating parts 6 and 7). That is, the adhesive R can be evenly injected into the first floating portion 6 and the second floating portion 7. Therefore, the anchor pin 9 and the adhesive R can be effectively acted on the outer wall 1, and the outer wall 1 can be completely repaired.

It is a cross-sectional schematic diagram of the state which is using the adhesive agent injection device with respect to the insertion hole of an outer wall. It is a top view of an adhesive injection device. It is sectional drawing of the injection nozzle which concerns on 1st Embodiment. It is a disassembled external appearance perspective view of a lock / unlock mechanism. It is explanatory drawing for demonstrating the fixed position and fixed release position of an operation lever. (A) is a perforation drawing of the pinning method according to the present embodiment, (b) is an insertion diagram of an injection nozzle, and (c) is a diagram in which a lock / unlock mechanism is fixed. (A) is an adhesive injection figure to the 1st floating part. (B) is an adhesive injection figure to a 2nd floating part, (c) is a pin insertion figure of an anchor pin. It is a disassembled perspective view of the injection nozzle which concerns on 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Concrete frame 3 ... Finishing material 6 ... 1st floating part 7 ... 2nd floating part 8 ... Insertion hole 9 ... Anchor pin 10 ... Opening part 11 ... Adhesive injector 12 ... Injector main body 13 ... Injection nozzle 21 ... Main body joint portion 22 ... Nozzle 23 ... Movable seal member 24 ... Lock / unlock mechanism 42 ... Discharge port 51 ... Main body holding portion 52 ... Operation lever 53 ... Compression coil spring 54 ... Stopper 71 ... Lock hole 75 ... Torsion coil spring 76 ... Hole edge R ... Adhesive

Claims (9)

Used in the injector body,
In the injection nozzle for the pinning method that injects the adhesive while sealing the opening to the insertion hole that penetrates the finishing material and drills the casing to a predetermined depth,
A body joint part whose base end side is detachably attached to the injector body;
A proximal end portion fixed to the distal end side of the main body joint portion, a nozzle having a discharge port at the distal end portion and inserted into the insertion hole;
A movable seal member that is slidably attached to the nozzle, abuts against the opening of the insertion hole when the adhesive is injected, and seals the seal;
An injection nozzle comprising: a lock / unlock mechanism that holds the movable seal member and fixes the movable seal member at an arbitrary position of the nozzle. The lock / unlock mechanism holds the movable seal member and is slidably attached to the nozzle;
The nozzle has a lock hole into which the nozzle is loosely inserted, and a tilting position with respect to the nozzle causes a hole edge portion of the lock hole to be squeezed and fixed to the nozzle, and a fixing release position to release the tilt. The injection nozzle according to claim 1, further comprising: an operation lever rotatably supported by the main body holding portion.   3. The injection nozzle according to claim 2, wherein the lock / unlock mechanism further includes a biasing member that biases the operation lever toward a fixed position.   The injection nozzle according to claim 2 or 3, wherein the lock / unlock mechanism further includes a stopper for restricting the rotation of the operation lever to the fixed release position. The operation lever is formed in a plate shape with a lock plate portion in which the lock hole is formed and an operation plate portion to be a finger-hanging portion,
The injection nozzle according to any one of claims 2 to 4, wherein the injection nozzle is rotatably supported by the main body holding portion at a boundary portion between the lock plate portion and the operation plate portion.   The injection nozzle according to claim 5, wherein the urging member is a coil spring interposed between the main body holding portion and the operation plate portion. The stopper is configured by a pin-like one protruding from the main body holding portion and extending toward the operation plate portion,
The injection nozzle according to claim 6, wherein the coil spring is a compression coil spring disposed coaxially with the stopper so as to surround the stopper.   6. The injection nozzle according to claim 3, wherein the urging member is a torsion coil spring wound around a rotation shaft of the operation lever with respect to the main body holding portion. In a pinning method of repairing a wall body made of a casing and a finishing material using an adhesive injector comprising the injection nozzle according to any one of claims 1 to 8 and the injector body equipped with the injection nozzle,
A drilling step of penetrating the finishing material and drilling the housing to a predetermined depth to form the insertion hole;
An adhesive injection step of injecting the adhesive into the loading hole while sealing the opening by the adhesive injector;
And a loading step of loading an anchor pin for anchoring the finishing material into the housing into the insertion hole into which the adhesive has been injected.

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