JP5041880B2 - nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple nozzle that squeezes an adhesive uniformly to an adhesion face each time, and a repairing device including it for injecting a sealing material into a crack on a wall, lumber, a floor, a road or the like. <P>SOLUTION: The nozzle comprises an insert member 2 having an insert mouth 2a into which the tip of an container 16 holding a fluid adhesive 17 is inserted and a bottom member engaged with the insert member 2 forming an inner space 8 and equipped with a plurality of discharge openings 6 having the through holes 6a connected with the inner space 8 serving as a flow channel of a liquid or a viscous material toward the adhesion face, and also the adhesive 17 is uniformly applied to the whole surface of the adhesion face. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a nozzle that uniformly squeezes an adhesive onto an adhesive surface, and a repair device that injects a sealing material into cracks generated on a wall surface, a wood, a floor surface, a road surface, and the like including the nozzle.

  Conventionally, when repairing by injecting a sealing agent into a cracked part generated on a wall surface, floor, tile, roof tile, etc. of a building, it is provided at the tip of a filling tube member such as a cartridge tube or a suction gun. A tapered synthetic resin nozzle is attached to the nozzle installation site, the tip of the nozzle is excised with a cutter, etc., the cut and opened opening is applied to the cracked site, and pressure is applied to the sealing agent in the filled cylinder member. The seal was injected through the opening that was opened by excision and excised.

  However, in the conventional repair, the sealing agent or the like can only be disposed so as to be difficult to inject even into the cracked part and spread around the periphery of the cracked part.

  For this reason, after the sealing agent or the like has flowed from the filling cylinder member to the periphery of the cracked portion, repairing is performed by pushing the sealing agent or the like into the cracked portion using a spatula or the like.

  As a result, the sealing agent or the like remained on the periphery of the cracked part, and after the repair, the trace of the repair started to appear, and the appearance was poor.

In addition, as shown in FIG. 3 of Patent Document 1, there has been a method in which the repair tool 10 is attached to the wall 1 via an adhesive 2 and injected.
JP 2001-107571 A

  However, in the repair tool 10 described in Patent Document 1, an appropriate amount of the adhesive 2 is squeezed out from the tube on the back surface of the flange 12, and is uniformly spread with a spatula, and then attached to the wall 1 or the like. Therefore, the amount of the adhesive 2 is not uniform and the work of spreading the coating is complicated.

  Therefore, the present invention provides a nozzle that simply and uniformly squeezes the adhesive onto the bonding surface, and a repair device that injects a sealing material into the cracks generated on the wall surface, wood, floor surface, road surface, and the like including the nozzle. It is aimed at.

In order to solve the above-described problems, the present invention has an insertion member 2 having an insertion port 2a into which the tip of a container 16 in which a fluid adhesive 17 is placed, and the insertion member 2 and the internal space. 8 and the bottom member 3 provided with a plurality of discharge ports 6 having through holes 6a connected to the internal space 8 serving as a discharge flow path of the adhesive 17 on the discharge object side, A nozzle configuration characterized in that the adhesive 17 is uniformly applied to the entire surface of the object;
A configuration of the nozzle, characterized in that spacers 4, 5 (5a) longer than the length of the discharge port 6 are attached to the outer periphery of the bottom surface member 3 (3b);
The configuration of the nozzle, wherein the tips of the spacers 4 and 5 (5a) are locked to an object,
A fitting projection 7 longer than the length of the discharge port 6 is attached to the center of the bottom surface member 3 (3b), and the tip of the fitting projection 7 is fitted into an opening provided in the object. A configuration of the nozzle, wherein
The configuration of the nozzle 1, wherein the plurality of discharge ports 6 are arranged in a plurality of rows concentrically spaced from the center of the bottom surface of the bottom surface member 3 (3b),
The diameters and heights of the through holes 6a, 6e, 6d,... Of the discharge ports 6, 6b, 6c,... Are changed, and the adhesive 17 is partially applied instead of the entire surface of the object. Changing the diameter and height of the through-hole 6a of the part, adjusting the discharge amount of the adhesive from the discharge port 6, and partially applying the adhesive to the object;
The nozzle according to any of the above, into which the tip of the container 16 containing the adhesive 17 fits, and the low-pressure injection container in which the adhesive 17 is discharged and is applied to the repair surface and injects the sealing agent into the cracks with the contraction pressure of the elastic body 12 The structure of the repair device characterized by comprising
The low-pressure injection container has an opening 13a as an injection flow path for a sealing agent, and covers the bottom member 13 attached to the repair surface 9 and the inside of the surface opposite to the surface to which the bottom member 13 is attached. The bottom member 13 includes an elastic body 12 connected to a filling portion 15 filled with a sealing agent, and a pressing portion 14 that is fitted to the bottom member 13 and presses and fixes the outer peripheral portion of the elastic body 12. The structure of the repair device described above, wherein the sealing agent filled between the elastic body 12 and the elastic body 12 is injected into the split 10 from the opening 13a by the contraction force of the elastic body 12, and the filling portion 15 includes , A projection 15a having an insertion path 15b into which a nozzle for injecting a sealing agent is inserted, and an inner end portion of the insertion path 15b are sealed, and the sealing agent is filled with an opening at the filling pressure of the nozzle when the sealing agent is injected. Insertion path 15 It is comprised of a check valve 15c which prevents backflow into the configured repair apparatus of the wherein.

  Since this invention is the above structure, the following effects are acquired. According to the nozzle of the present invention that squeezes out the adhesive, it is possible to easily and uniformly squeeze a predetermined amount of the adhesive onto the adhesive surface every time. Moreover, since the adhesive dripping is small and the excess adhesive is not removed, the waste of the adhesive is small. Further, there is no work of spreading the adhesive on the entire coated surface with a spatula or the like, and the workability is good.

  Since there are multiple discharge ports, no strong force is required to squeeze out the adhesive, and because the height of the internal space is wider than the nozzle diameter, the internal space can be filled without air mixing, and there are few squeezing errors.

  Since there is a certain distance (L) between the tip of the discharge port and the adhesive surface by the spacer, the adhesive is squeezed into droplets, and the adjacent adhesives squeezed out by the arrangement of the discharge ports are spaced apart Therefore, the air between the bonding surface and the object to be bonded is pressed at the time of bonding so that the air is efficiently removed from the bonding boundary, so that the bonding force does not decrease. Further, when the spacer tip and the object to be bonded are engaged, the lateral positioning can be performed reliably.

  Because it has a fitting protrusion, it can be easily fitted to the low-pressure injection container to be bonded, positioning of the adhesive squeeze outlet and the rotation direction can be prevented, and it can be applied to different surfaces by mistake, The position where the adhesive is dropped does not shift.

By disposing a plurality of discharge ports concentrically from the center of the bottom surface, it is possible to always drop a bonding target on the bonding surface with an appropriate amount of adhesive.

By changing the diameter and height of the through-holes of all or some of the discharge ports , and applying the adhesive partially rather than the entire surface of the object, the amount of the discharged adhesive can be changed according to the purpose. Can do.

  By making the discharge target of the adhesive a low pressure container, the sealing agent can be surely injected into the split.

The present invention is intended to provide a simple and repairing device for repairing a sealing material to a crack generated on a wall surface, a wood surface, a floor surface, a road surface, and the like including a nozzle that squeezes an adhesive evenly onto an adhesive surface each time. The insertion member 2 having the insertion port 2a into which the distal end of the container 16 in which the adhesive 17 having the property is placed is inserted, the insertion member 2 and the internal space 8 are provided and fitted, and the adhesive is disposed on the discharge target side A through hole 6a connected to the internal space 8 serving as a discharge flow path 17 and arranged in a plurality of rows concentrically spaced from the center of the bottom surface of the bottom surface member 3b, and the discharge ports 6, 6b, 6c,. The diameters and heights of the through holes 6a, 6e, 6d,... Are changed, and the adhesive 17 is partially applied instead of the entire surface of the object, or the diameters and heights of some of the through holes 6a. And adjust the discharge amount of adhesive from the discharge port 6 to partially apply to the object A plurality of discharge ports 6 for applying an adhesive are provided, and spacers 4 and 5 (5a) are provided on the outer peripheral portion of the bottom surface member 3b, and the tip of the spacer 5a is longer than the length of the discharge port 6 to be locked to the object. ) Is attached, and a fitting projection 7 longer than the length of the discharge port 6 is attached to the center of the bottom surface member 3b, and the tip of the fitting projection 7 is fitted into an opening provided in the object. A configuration of a nozzle, wherein the adhesive 17 composed of a bottom member 3 is applied to the entire surface of an object;
In addition, the nozzle according to any one of the above, into which the tip of the container 16 containing the adhesive 17 fits, the bottom member 13 having an opening 13a serving as a sealing agent injection channel, and affixed to the repair surface 9, and the bottom member 13 A projection 15a having an insertion path 15b for inserting a nozzle for injecting a sealing agent that covers the inside of the surface opposite to the surface to which the adhesive is applied, and an inner end of the insertion path 15b are sealed to inject a sealing agent An elastic body 12 which is sometimes opened by a filling pressure of the nozzle and includes a check valve 15c for preventing a backflow of the filled sealing agent into the insertion path 15b and connected to a filling portion 15 for filling the sealing agent, and the bottom member 13, an adhesive 17 composed of a pressing portion 14 that presses and fixes the outer peripheral portion of the elastic body 12 is discharged, and a sealing agent is injected into the cracks by the contraction pressure of the elastic body 12 applied to the repair surface. Low pressure injection A vessel 11, to consist realized by a configuration of the repair device 18a according to claim.

  FIG. 1 is a front view of a nozzle according to the present invention. FIG. 2 is a plan view of the nozzle according to the present invention. FIG. 3 is a rear view of the nozzle according to the present invention. FIG. 4 is a left side view of the nozzle according to the present invention.

  The nozzle 1 according to the present invention is provided with an insertion member 2 having an insertion port 2a into which a distal end of a container 16 in which a fluid adhesive 17 is put, and the insertion member 2 and an internal space 8 are provided. The bottom surface member 3 provided with a plurality of discharge ports 6 having through holes 6a connected to the internal space 8 serving as the discharge flow path of the adhesive 17 on the discharge object side, and the outer periphery of the bottom surface member 3 The left and right spacers 4 and 5 that are longer than the length of the discharge port 6 and the center portion of the bottom surface member 3 that is longer than the length of the discharge port 6 and that fits into the opening provided in the object. It consists of a protrusion 7. Thereby, the adhesive 17 can be uniformly applied to the entire surface of the object.

  The insertion member 2 is a portion into which a container in which an adhesive is put, for example, a tip (nozzle) such as a tube or a piston is inserted. When it is only inserted, the inner side wall 2 c is preferably narrowed toward the inner space 8. The container in which the adhesive is put is detached and loosened by the pressure for injecting the adhesive into the inside, and the tip of the container and the insertion port 2a are firmly fitted so that the adhesive does not leak out. Alternatively, the protrusion 2b may be formed on the insertion member 2 and the adhesive-containing container may be locked to the protrusion 2b. The insertion between the insertion port 2a and the container with an adhesive may be a method in which a screw thread is formed on the inner surface of the insertion port 2a and screwed into the adhesive-containing container.

  The bottom member 3 is substantially circular here, and is fitted to the insertion member 2 to form an internal space 8. The fitting may be performed by an adhesive or may be a detachable type by screwing with a screw thread. If it is a screw-in type, it can be reused by easily disassembling the insertion member 2 and the bottom member 3 after use, taking out the adhesive remaining in the discharge port 6 and the internal space 8, and performing cleaning or the like. Can be economical.

  As shown in FIG. 3, a rectangular fitting protrusion 7 that fits into an opening provided in an object to be bonded and prevents displacement in the rotation direction is provided at substantially the center outside the bottom member 3. As a result, the position where the adhesive is squeezed out is not displaced.

  The plurality of discharge ports 6 are arranged in a plurality of rows at concentric intervals from the center of the bottom surface 3 a of the bottom surface member 3. Furthermore, here, the plurality of discharge ports 6 are arranged between two discharge ports 6 in which inner peripheral discharge ports 6 positioned in adjacent concentric circles are positioned in the outer peripheral circle. As a result, the adhesive is uniformly squeezed at regular intervals with respect to the surface to be squeezed, and the adhesive is uniformly spread over the entire adhesive surface by the force of pressing the object to be bonded to the adhesive surface. As a result, air is removed from the spread adhesive, and the bonding surface and the bonding target can be bonded efficiently. The inner diameter of the through hole 6a is appropriately selected depending on the bonding area, the viscosity of the adhesive used, the amount of squeezing out, and the like.

  As shown in FIG. 1, the left and right spacers 4, 5 are formed in a stepped shape, and if the object to squeeze the adhesive is a movable object, it is locked and bonded to the outer periphery of the shape. Even if a force is applied to squeeze out the agent, the nozzle 1 does not shake. Note that the lengths of the left and right spacers can be appropriately selected depending on the bonding area, the viscosity of the adhesive used, the amount of squeezing, and the like.

  FIG. 5 is a cross-sectional view taken along the line AA of the nozzle according to the present invention. The insertion member 2 and the bottom surface member 3 are fitted to each other, and an internal space 8 extending from the insertion port 2a is formed on almost the entire back surface of the surface on which the discharge port 6 of the bottom surface member 3 is connected. The height of the internal space is preferably about 1 mm to 5 mm, and more preferably about 1 mm to 3 mm.

  When the height is lower than 1 mm, the viscous adhesive does not flow into the entire inner space 8 and is not uniformly extruded from the discharge port 6 due to uneven internal pressure. That is, there is a difference in the amount of adhesive discharged from the tip of the discharge port 6 at the center side of the bottom surface 3a and the discharge port 6 in the outer peripheral direction, resulting in unevenness in the squeezing target.

  On the other hand, if the height is higher than 5 mm, a large force is required to squeeze out, and the amount of adhesive remaining in the internal space 8 is large, and it is not economical.

  FIG. 6 is an exploded perspective view of the nozzle according to the present invention. The insertion member 2 and the bottom surface member 3 are formed as separate bodies, and are fitted while leaving the internal space 8. As described above, the screw-in type facilitates reuse. In addition, the fitting method of the insertion member 2 and the bottom face member 3 is not specifically limited.

  FIG. 7 is a perspective sectional view of a nozzle according to the present invention. Here, a mode that it fits on the outer surface of the bottom member 13 adhere | attached on the repair surface of the low pressure injection container 11 was shown. The fitting protrusion 7 is fitted into an opening 13a serving as a sealing agent injection port, and the left and right spacers 4 and 5 are locked to the outer edge of the bottom member 13 by a stepped portion at the tip thereof. The edge of the opening 13a is formed with a convex portion 13b that is one step higher than the surface from which the adhesive is squeezed out. The convex portion 13b prevents the adhesive squeezed out to the bottom member 13 from sticking out to the opening 13a when the low-pressure injection container 11 is attached to the repair surface, and prevents the adhesive from being mixed into the crack.

  The nozzle 1 according to the present invention is not limited to squeezing out the adhesive only to the low-pressure injection container 11, and it is needless to say that the adhesive can be squeezed out uniformly to all objects.

  FIG. 8 is a cross-sectional view showing a use state of the repair device according to the present invention. According to FIGS. 8A to 8D, the adhesive 17 is squeezed out to the bonding surface of the low-pressure injection container 11. The repair device 18 includes a container 16 containing an adhesive 17, a nozzle 1 into which the tip of the container 16 fits, and a low-pressure injection container 11. The container 16 may be a tube sold with an adhesive, a piston capable of being filled with the adhesive, or the like.

  The low-pressure injection container 11 has an opening 13a which is a sealing agent injection channel, and covers the inside of the bottom member 13 attached to the repair surface 9 and the surface opposite to the surface to which the bottom member 13 is attached. The bottom member 13 includes an elastic body 12 connected to a filling portion 15 filled with a sealing agent, and a pressing portion 14 that is fitted to the bottom member 13 and presses and fixes the outer peripheral portion of the elastic body 12. The sealing agent filled between the elastic body 12 and the elastic body 12 is injected into the split 10 from the opening 13 a by the contraction force of the elastic body 12.

  The filling portion 15 seals the projection 15a having an insertion path 15b into which a nozzle for injecting a sealing agent is inserted, and the inner end portion of the insertion path 15b, and opens at the filling pressure of the nozzle when the sealing agent is injected. And a check valve 15c for preventing the backflow of the filled sealing agent to the insertion path 15b.

  FIG. 8A shows that the bottom member 13 of the low-pressure injection container 11 is fitted, the piston, which is the container 16 containing the adhesive 17, is fitted into the insertion port 2 a of the nozzle 1, and the adhesive 17 is placed in the internal space 8. It shows the situation of sending in. FIG. 8B shows a state where when the adhesive 17 is further fed from the container 16, the internal space 8 is filled with the adhesive 17 and is fed into the through hole 6 a inside the discharge port 6 connected to the internal space 8. Yes.

  FIG. 8C shows the state of the adhesive 17 that is continuously fed from the container 16 and discharged from the tip of the discharge port 6. At this time, the left and right spacers 4 and 5 longer than the length of the discharge port 6 are locked to the outer edge of the low-pressure injection container 11, and a certain distance (L / in the drawing) is provided between the adhesive surface of the low-pressure injection container 11 and the tip of the discharge port 6. Forming. FIG. 8D shows a state after the adhesive is squeezed out to the adhesive surface of the low-pressure injection container 11. The distance (L) is ensured by the left and right spacers 4 and 5, and the adhesive has viscosity, so that the adhesive is squeezed into droplets and does not drip from the discharge port 6.

  FIG. 9 is a diagram showing a repair situation by the repair device according to the present invention. The low-pressure injection container 11 squeezed out of the adhesive 17 shown in FIG. 8D is pressed and pasted on the split 10 on the repair surface 9 so that the opening 13a of the bottom member 13 is located. The adhesive 17 squeezed out in a drop shape by pressing spreads, and the repair surface 9 and the low-pressure injection container 11 are attached via the adhesive 17. Here, the repair surface 9 is a wall surface, wood, a floor surface, a road surface, or the like, and is a surface to which an object to be bonded such as the low pressure injection container 11 is bonded.

  A repair method for the split 10 will be described. First, the low-pressure injection container 11 is attached, the adhesive 17 is dried, and after the low-pressure injection container 11 is firmly attached to the repair surface, the low-pressure injection container 11 is filled with a sealing agent. The sealing agent is filled by inserting a nozzle at the tip of the container filled with the sealing agent into the insertion path 15b of the filling portion 15, filling the sealing agent, and opening the check valve 15c with the filling pressure, Filling is performed between the elastic body 12 film such as silicon and the bottom member 13. By filling the sealing agent, the elastic body 12 expands and rises like a dome.

  Next, the sealing agent is gradually injected into the split 10 from the opening 13 a by the contraction force of the stretched elastic body 12. After the injection of the sealing agent is completed, the low-pressure injection container 11 is peeled off, the adhesive 17 is shaved, and repair (polishing, painting, etc.) is performed by a regular method.

  Next, a second embodiment of the nozzle will be described. FIG. 10 is a perspective view of a second embodiment of the nozzle according to the present invention.

  The nozzle 1a is the same as the nozzle 1 of the first embodiment except that the left and right spacers 4 and 5 are replaced with spacers 5a formed on the entire outer surface. Further, the length of the discharge port 6, that is, the length (height) of the through hole 6 a is changed to a discharge port that is changed in whole or in part. Further, the inner diameter of the through hole 6a is also changed. Other configurations are the same as those in the first embodiment. Thereby, it is possible to apply the adhesive 17 partially on the entire surface of the object, and to adjust the application amount.

  FIG. 11 is a partial cross-sectional view showing a usage state of the second embodiment of the nozzle according to the present invention (the fitting protrusion 7 is omitted). In accordance with FIGS. 11A to 11E, the adhesive 17 is squeezed out to the bonding surface of the low-pressure injection container 11. The repair device 18a is a device in which the nozzle 1 is changed to the nozzle 1a in the previous repair device 18. The configuration other than the nozzle 1a is the same as that of the first embodiment.

  As shown in FIG. 11A, the adhesive 17 is pushed out from the container 16 to the insertion port 2a. When the insertion port 2a is filled with the adhesive 17, the adhesive 17 is pushed into the internal space 8 from the center toward the outside, as shown in FIG.

  At this time, the inner diameters of the through holes 6 d and 6 are preferably shorter than the height (H) of the internal space 8. By doing so, since the adhesive 17 has viscosity, it can be adjusted so that the adhesive 17 does not leak ahead of the front ends of the discharge ports 6b and 6a near the center of the bottom surface 3a.

  Subsequently, as shown in FIG. 11C, the adhesive 17 filling the internal space 8 advances in advance of the through hole having a large inner diameter. Furthermore, as shown in FIGS. 11D and 11E, the discharge amount of the adhesive 17 can be adjusted by adjusting the diameter and height of the through hole, that is, the height of the bottom member 13 from the tip of the discharge port. it can.

  FIG. 11 (F) shows a partially enlarged view of the bottom surface member 3b. Here, the inner diameter (d) of the discharge port is increased (thin / medium / thick) from the center of the bottom surface member 3b outward, and the height (h) of the through hole is shortened (high / medium / low). ) Therefore, in the nozzle 1a, the discharge amount of the adhesive 17 in the center direction of the bottom surface member 3b is small, and the discharge amount of the adhesive 17 in the outside direction is large. As described above, the discharge amount of the adhesive 17 is partially adjusted by changing the height of the through hole, that is, the length of the discharge port and the inner diameter of the through hole in a part or all of the plurality of discharge ports. be able to.

It is a front view of the nozzle which is this invention. It is a top view of the nozzle which is this invention. It is a rear view of the nozzle which is this invention. It is a left view of the nozzle which is this invention. It is AA sectional drawing of the nozzle which is this invention. It is a disassembled perspective view of the nozzle which is this invention. It is a perspective sectional view of the nozzle which is the present invention. It is sectional drawing which shows the use condition of the repair apparatus which is this invention. It is a figure which shows the repair condition by the repair apparatus which is this invention. It is a perspective view of the 2nd Example of the nozzle which is this invention. It is a partial cross section figure which shows the use condition of the 2nd Example of the nozzle which is this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nozzle 1a Nozzle 2 Insert member 2a Insert port 2b Protrusion 2c Side wall 3 Bottom member 3a Bottom surface 3b Bottom member 4 Spacer 5 Spacer 5a Spacer 6 Discharge port 6a Through hole 6b Discharge port 6c Discharge port 6d Through hole 6e Through hole 7 Fit Joint protrusion 8 Internal space 9 Repair surface 10th part 11 Low pressure injection container 12 Elastic body 13 Bottom member 13a Opening 13b Protrusion part 14 Push part 15 Filling part 15a Projection 15b Insertion path 15c Check valve 16 Container 17 Adhesive 18 Repairing device 18a Repair device

Claims (8)

An insertion member having an insertion port for inserting a tip of a container in which a fluid adhesive is put, an insertion space and an internal space are provided, and an adhesive discharge channel is provided on the discharge object side. A plurality of discharge ports having through holes connected to the internal space are formed , and a central portion on the discharge object side has a fitting protrusion whose tip is longer than the discharge port and fits into the opening of the object. A nozzle comprising: a bottom member provided; and uniformly applying the adhesive to the entire surface of an object.   The nozzle according to claim 1, wherein a spacer longer than a length of the discharge port is attached to an outer peripheral portion of the bottom surface member.   The nozzle according to claim 2, wherein a tip of the spacer is locked to an object. The nozzle according to any one of claims 1 to 3, wherein the plurality of discharge ports are arranged in a plurality of rows concentrically spaced from the center of the bottom surface of the bottom surface member. Change the diameter and height of the through-hole of the discharge port , apply the adhesive partially on the entire surface of the object, or change the diameter and height of some through-holes, The nozzle according to any one of claims 1 to 4, wherein the discharge amount of the adhesive is adjusted, and the adhesive is partially applied to the object. The nozzle according to any one of claims 1 to 5, wherein the tip of the container containing the adhesive is fitted, and the adhesive is discharged, the adhesive is applied to the repair surface, and the contraction pressure of the elastic body is used to apply a sealing agent to the crack. A repair device comprising a low-pressure injection container for injection. The low-pressure injection container has an opening which is an injection flow path for a sealing agent, covers a bottom member attached to a repair surface, and a surface opposite to the surface to which the bottom member is attached, A sealing member, which is composed of an elastic body in which a filling portion to be filled is connected, and a pressing portion that is fitted to the bottom member and presses and fixes the outer peripheral portion of the elastic body, and is filled between the bottom member and the elastic body. The repair device according to claim 6 , wherein the agent is injected into the split from the opening by the contraction force of the elastic body. The filling portion seals a projection having an insertion path into which a nozzle for injecting a sealing agent is inserted, and an inner end portion of the insertion path, and opens and fills with the filling pressure of the nozzle when the sealing agent is injected. The repair device according to claim 7 , comprising a check valve that prevents backflow of the agent into the insertion path.

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