Caulking cartridge, caulking gun, and use method of caulking gun

Abstract

To provide a caulking cartridge, a caulking gun, and a use method of the caulking gun that allow a caulking cartridge to be repeatedly reused.SOLUTION: A caulking cartridge 1 comprises a cylindrical body 10, a discharge plate 20, an extrusion plate 30, and an attachment preventive material 40. The discharge plate includes a discharge plate body, and a nozzle. The extrusion plate with its both surfaces shaped symmetrically includes an extrusion plate body and a plurality of support bodies, and supports the attachment preventive material linearly or dottedly using the plurality of support bodies. A caulking gun comprises the caulking cartridge and an extrusion mechanism, and allows a direction of the cylindrical body to be converted by 180 degrees. A use method of the caulking gun includes a discharge step and a conversion step. In the conversion step, the attachment preventive material is removed from one surface of the extrusion plate without extruding the extrusion plate from inside the cylindrical body, and the attachment preventive material is attached to the other surface of the extrusion plate, whereas the discharge plate is replaced on an opposite surface of the cylindrical body.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a caulking cartridge, a caulking gun, and a method of using a caulking gun, and in particular to a caulking cartridge that can be repeatedly reused by rotating the caulking cartridge 180 degrees, a caulking gun using the same, and a method of using the caulking gun. [Background technology]

[0002] Caulking guns are used to dispense adhesive into gaps in concrete structures during post-installation anchor work and the like. A caulking gun is a device in which an adhesive is filled into a cylindrical cartridge having a nozzle at one end, and the adhesive is discharged from the nozzle by pushing a piston rod into the other end of the cartridge. Patent Document 1 discloses a caulking gun in which a liquid is injected into a cartridge containing Portland cement powder and the cartridge is shaken to stir the liquid, generating a water-soluble hardener inside the cartridge, which is then pushed out by a piston rod to eject an adhesive. Patent documents 2 and 3 disclose a caulking gun in which an adhesive material filled in a sausage-shaped film pack is loaded into a cartridge and the film pack is pushed out together with the bag using a piston rod, breaking the film and ejecting the adhesive material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-74614 A [Patent Document 2] JP 2016-169547 A [Patent Document 3] JP 2007-237028 A Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional technology has the following problems. <1> In the caulking gun of Patent Document 1, once the piston plate is pushed into the innermost part of the cartridge and all the adhesive has been discharged, it is difficult to remove the piston plate from inside the cartridge. For this reason, the cartridges in many products are disposable, which places a large burden on the environment. <2> To reuse cartridges, it is necessary to wash away the adhesive that has adhered to the piston and nozzle before it hardens. However, to clean the inside of the cartridge, it is necessary to insert a rod from the tip of the narrow nozzle and push the piston plate backward to disassemble it, which is a time-consuming and labor-intensive process. <3> The caulking guns of Patent Documents 2 and 3 use a disposable adhesive contained in a film pack, so that the amount of adhesive cannot be adjusted according to the actual amount of use, and the amount remaining after use is wasted.

[0005] An object of the present invention is to provide a caulking cartridge, a caulking gun, and a method of using a caulking gun to solve the above-mentioned problems. [Means for solving the problem]

[0006] The caulking cartridge of the present invention comprises a cylinder of a single diameter, a discharge plate removably attached to one end of the cylinder, a pusher plate movably arranged within the cylinder, and an anti-adhesion material removably installed on one side of the pusher plate, wherein the discharge plate has a discharge plate main body that seals one end of the cylinder, and a nozzle that connects both sides of the discharge plate main body, and the pusher plate has a symmetrical shape on both sides, an pusher plate main body that blocks the inner space of the cylinder, and a plurality of support bodies provided on both sides of the pusher plate main body, and the anti-adhesion material is supported in a linear or dotted manner by the plurality of support bodies.

[0007] In the caulking cartridge of the present invention, the pusher plate may have annular edges provided on the outer edges of both sides of the pusher plate body, and the height of the annular edges on each side of the pusher plate body may be higher than the height of the support.

[0008] In the caulking cartridge of the present invention, the discharge plate may be provided with tabs projecting radially from the outer edge of the discharge plate body.

[0009] In the caulking cartridge of the present invention, the outer diameter of the pusher plate when removed from the cylindrical body may be larger than the inner diameter of the cylindrical body.

[0010] The caulking gun of the present invention is characterized by comprising a caulking cartridge and an extrusion mechanism capable of extruding a pusher plate inside a cylinder toward a discharge plate, and by being capable of rotating the direction of the cylinder by 180 degrees.

[0011] The method of using the caulking gun of the present invention comprises a discharge step in which the extrusion plate inside the cylinder is pushed toward the discharge plate by operating the extrusion mechanism, and the adhesive inside the cylinder is discharged from the nozzle, and a conversion step in which the orientation of the cylinder is changed by 180 degrees. The conversion step is characterized in that the extrusion plate is not removed from inside the cylinder, the anti-adhesion material is removed from one side of the extrusion plate, an anti-adhesion material is attached to the other side of the extrusion plate, and the discharge plate is replaced with the opposite side of the cylinder. Effect of the Invention

[0012] The caulking cartridge, caulking gun, and method of using a caulking gun of the present invention have at least one of the following effects due to the above-mentioned configuration. <1> After the pressure plate is pushed into the innermost part of the cylinder and the adhesive has been discharged, the caulking cartridge can be rotated 180 degrees and the discharge plate can be replaced from one end of the cylinder to the other, allowing the caulking cartridge to be reused any number of times. <2> By inverting the caulking cartridge, it can be reused immediately after use without having to move the pressure plate within the cylinder or remove the pressure plate from the cylinder. <3> This configuration has an anti-adhesive material placed on the front surface of the pressure plate, and since the pressure plate does not come into contact with the adhesive material, there is no need to remove the pressure plate for cleaning after use. <4> The adhesive can be produced according to the actual amount used, so there is little leftover material, making it environmentally friendly. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is an explanatory diagram of the caulking gun of the present invention. [Diagram 2] FIG. 1 is an explanatory diagram of a caulking cartridge according to the present invention; [Diagram 3] Illustration of the discharge plate [Figure 4] Extrusion plate diagram [Figure 5A] Diagram of how to use a caulking gun (1) [Figure 5B] Diagram of how to use a caulking gun (2) [Figure 5C] Diagram of how to use a caulking gun (3) [Figure 5D] Diagram of how to use a caulking gun (4) [Figure 5E] Diagram of how to use a caulking gun (5) [Figure 5F] Diagram of how to use a caulking gun (6) [Figure 5G] Diagram of how to use a caulking gun (7) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The caulking cartridge, the caulking gun, and the method of using the caulking gun of the present invention will be described in detail below with reference to the drawings. EXAMPLES

[0015] [Caulking gun] <1> Overall configuration (Figure 1) The caulking gun A of the present invention is a device for injecting an adhesive B into gaps and the like of a concrete structure. The caulking gun A comprises at least a caulking cartridge 1, an extrusion mechanism A1 attached to the caulking cartridge 1, a piston rod A2 that advances and retreats within the caulking cartridge 1 by operating the extrusion mechanism A1, and a piston plate A3 attached to the tip of the piston rod A2. The structures of the extrusion mechanism A1 and the like are well known and will not be described in detail here. One feature of the caulking gun A of the present invention is that the caulking cartridge 1 can be repeatedly used by rotating the caulking cartridge 1 by 180 degrees after use.

[0016] <2> Caulking cartridge (Fig. 2) The caulking cartridge 1 is a cartridge for discharging an adhesive B. The caulking cartridge 1 comprises at least a single-diameter cylindrical body 10, a discharge plate 20 removably attached to one end of the cylindrical body 10, an extrusion plate 30 disposed within the cylindrical body 10, and an anti-adhesion material 40 removably installed on one side of the extrusion plate 30. One of the features of the caulking cartridge 1 of the present invention is its structure that allows the discharge direction of the adhesive B to be changed by 180 degrees by shifting the discharge plate 20 from one end of the cylinder 10 to the other end and shifting the anti-adhesion material 40 from one side of the extrusion plate 30 to the opposite side.

[0017] <3> Cylinder The cylindrical body 10 is a cylindrical body in which the adhesive material B is filled. The cylindrical body 10 is made of a single diameter cylinder with both ends open. In this embodiment, the cylindrical body 10 is a polypropylene cylinder having no threads on the inner circumference. The cylindrical body 10 may be made of a light-transmitting material so that the remaining amount of the adhesive B and the position of the push-out plate 30 can be visually observed.

[0018] <4> discharge plate The discharge plate 20 is a plate attached to the discharge side of the cylindrical body 10 . The discharge plate 20 at least includes a discharge plate body 21 having a shape capable of closing one end of the cylinder 10, and a nozzle 22 communicating with both sides of the discharge plate body 21. In this example, the discharge plate 20 further includes a plurality of reinforcing ribs 23 provided on the front side of the discharge plate body 21, and claw pieces 24 protruding radially from the outer edge of the discharge plate body 21. In this embodiment, the discharge plate 20 is made of a polypropylene and is an integrally molded product. The discharge plate body 21 has a circular outer shape that corresponds to the inner diameter of the cylindrical body 10 . An outer peripheral wall 21a rises from the outer edge of the discharge plate body 21 in the protruding direction of the nozzle 22. An annular groove for fitting into the cylindrical body 10 is formed on the outer periphery of the outer peripheral wall 21a. The caulking cartridge 1 of the present invention is easy to remove and clean because the discharge plate 20 has a fitting structure using an annular groove rather than a screw structure. In this embodiment, the reinforcing ribs 23 are a combination of a plurality of radial ribs arranged from the outer periphery of the nozzle 22 toward the outer periphery wall 21a and a plurality of annular ribs arranged concentrically between the nozzle 22 and the outer periphery wall 21a. The tabs 24 are used to remove the discharge plate 20 fitted inside the cylindrical body 10 from the cylindrical body 10 .

[0019] <5> Extrusion Plate The pushing plate 30 is a plate body that pushes out the adhesive material B inside the cylindrical body 10. The extrusion plate 30 includes at least an extrusion plate body 31 and a plurality of supports 32 provided on both sides of the extrusion plate body 31, and both sides have a symmetrical shape. In this example, the extrusion plate 30 further includes annular edges 33 provided on the outer edges of both sides of the extrusion plate body 31. In this embodiment, the extrusion plate 30 is made of a polypropylene and is an integrally molded product. The extrusion plate body 31 has a circular outer shape that blocks the inner space of the cylinder 10 . An annular groove for fitting into the cylindrical body 10 is formed on the outer periphery of the extrusion plate body 31 . In this example, the outer diameter of the pusher plate body 31 when removed from the cylindrical body 10 is larger than the inner diameter of the cylindrical body 10. That is, the pusher plate body 31 is fitted into the cylindrical body 10 by flexibly deforming. This eliminates any gap between the inner surface of the cylindrical body 10 and the pusher plate main body 31, so that the adhesive material B is less likely to leak to the piston plate A3 side when the pusher plate 30 is pressed. On the other hand, once the push-out plate 30 is removed from the cylindrical body 10, it is very difficult to refit it. In this regard, the caulking cartridge 1 of the present invention is an invention in which the push-out plate 30 is used by moving back and forth within the cylindrical body 10 without being removed, so there is no need to refit the push-out plate 30.

[0020] <5.1>Support The support body 32 has a structure that has both a supporting function for the adhesion prevention material 40 and a reinforcing function for the extrusion plate body 31 . The support 32 is composed of a plurality of linear or dot-like structures. In this example, the support body 32 is a combination of a plurality of radial ribs arranged from the center of the extrusion plate body 31 toward the annular edge 33 and a plurality of annular ribs arranged concentrically between the center of the extrusion plate body 31 and the annular edge 33. By supporting the anti-adhesion material 40 in a linear manner using a plurality of supports 32, the bottom surface of the anti-adhesion material 40 is prevented from coming into contact with and sticking to the surface of the extrusion plate body 31, making it easier to remove the anti-adhesion material 40. The structure of the support 32 is not limited to ribs, but may be a point-like support structure using a plurality of protrusions.

[0021] <5.2> Circular edge The annular edge 33 is a structure that holds the outer periphery of the anti-adhesive material 40 . The annular edge 33 is composed of an annular rib provided on the outer periphery of the extrusion plate body 31, and its height is higher than the height of the support 32 on each surface of the extrusion plate body 31. By providing an annular edge 33 higher than the support 32 on the outer periphery of the push-out plate 30 , the adhesion prevention material 40 can be positioned inside the annular edge 33 .

[0022] <6> Anti-adhesion material The adhesion prevention material 40 is a plate body for preventing the adhesive material B from adhering to the push-out plate 30 . The shape of the adhesion prevention material 40 corresponds to the outer shape of the extrusion plate 30. That is, in this example, the size is set so that the adhesion prevention material 40 fits within the annular edge 33 on the support 32. In this embodiment, a circular polypropylene film is used as the adhesion prevention material 40.

[0023] <7> How to Use a Caulking Gun The caulking gun A of the present invention is used, for example, as follows.

[0024] <7.1> State before use (Fig. 5A) Before use, caulking gun A has a discharge plate 20 fitted in front of a cylinder 10, a push-out plate 30 fitted inside the cylinder 10, and an anti-adhesion material 40 attached to the front surface of the push-out plate 30. Adhesive material B is filled between the discharge plate 20 and the anti-adhesion material 40. The piston plate A3 is in contact with the rear surface of the pusher plate 30, and the piston rod A2 is connected to the rear surface of the piston plate A3.

[0025] <7.2> Discharge of adhesive (Fig. 5B, 5C) By pushing the piston rod A2 forward, the adhesive material B inside the cylinder 10 is pushed out through the piston plate A3, the pusher plate 30, and the adhesion prevention material 40, and is discharged to the outside through the nozzle 22 of the discharge plate 20.

[0026] <7.3> Disassembly of the caulking cartridge (Fig. 5C, 5D) After the adhesive B inside the cylinder 10 has been completely discharged, the caulking cartridge 1 is removed from the caulking gun A. Next, the discharge plate 20 and the adhesion prevention material 40 are removed from the cylindrical body 10. In this example, the outer peripheral wall 21 a is separated from the inner wall of the cylindrical body 10 by hooking the tabs 24 of the discharge plate 20 with fingers and bending the discharge plate body 21 forward. The removed discharge plate 20 and the adhesion prevention material 40 are washed to remove the adhering fixing material B, and are then reused. However, the adhesion prevention material 40 may be disposable. In the caulking cartridge 1 of the present invention, since the push-out plate 30 does not come into contact with the adhesive B, it is not necessary to wash the push-out plate 30, and therefore it is not necessary to remove the push-out plate 30 from within the cylindrical body 10.

[0027] <7.4> Installation of anti-adhesion material (Fig. 5E) The cylindrical body 10 is stood upright with the front end of the cylindrical body 10, i.e., the pushing plate 30 side, facing downward. The adhesion prevention material 40 is inserted into the cylindrical body 10 and disposed on the support 32 of the extrusion plate 30 .

[0028] <7.5> Preparation of adhesive (Fig. 5F) A water-soluble hardener B1 and water B2 are charged into the cylinder 10 in a predetermined ratio, and the mixture is stirred with a stirrer C to prepare the adhesive B within the cylinder 10. The water-soluble hardener B1 is, for example, Portland cement. The adhesive B may not be prepared within the cylindrical body 10, but may be prepared in advance in a separate container and then poured into the cylindrical body 10.

[0029] <7.6> Assembling the caulking gun (Fig. 5G) The discharge plate 20 is fitted and attached to the upper part of the cylindrical body 10. As a result, the front and rear of the caulking cartridge 1 are rotated 180 degrees from the state before use. The caulking gun A is assembled by attaching the extrusion mechanism A1, the piston rod A2, and the piston plate A3 to the caulking cartridge 1. By following the above procedure, the caulking cartridge 1 can be reused repeatedly. [Explanation of symbols]

[0030] 1 Caulking cartridge 10 Cylinder 20 Discharge plate 21 Discharge plate body 21a Outer wall 22 Nozzle 23 Reinforcing rib 24 Nail Piece 30 Extrusion plate 31 Extrusion plate body 32 Support 33 Circular Rim 40 Anti-adhesion material A Caulking gun A1 Extrusion mechanism A2 Piston rod A3 Piston plate B Adhesive B1 Water-soluble hardener B2 water C. Agitator

Claims

1. A caulking cartridge for a caulking gun, which discharges a fixing material filled inside by pushing it out with a piston rod, A cylindrical body having a single diameter; A discharge plate detachably attached to one end of the cylindrical body; A pusher plate movably disposed within the cylindrical body; An anti-adhesion material detachably installed on one side of the extrusion plate, the discharge plate has a discharge plate body that closes one end of the cylindrical body, and a nozzle that communicates with both faces of the discharge plate body, The extrusion plate has a symmetrical shape on both sides and includes an extrusion plate body that blocks the inner space of the cylindrical body, and a plurality of supports provided on both sides of the extrusion plate body, The adhesion prevention material is supported in a linear or dotted manner by the plurality of supports. Caulking cartridge.

2. The extrusion plate has annular edges provided on the outer edges of both sides of the extrusion plate body, The height of the annular edge on each surface of the extrusion plate body is higher than the height of the support. The caulking cartridge of claim 1.

3. The discharge plate is characterized in that it has a claw piece protruding radially from the outer edge of the discharge plate body. The caulking cartridge of claim 1.

4. The outer diameter of the extrusion plate when removed from the cylindrical body is larger than the inner diameter of the cylindrical body. The caulking cartridge of claim 1.

5. A caulking cartridge according to any one of claims 1 to 4; an extrusion mechanism capable of extruding the extrusion plate in the cylindrical body toward the discharge plate, The orientation of the cylindrical body can be changed by 180 degrees. Caulking gun.

6. A method of using the caulking gun according to claim 5, comprising the steps of: a discharge step of operating the extrusion mechanism to extrude the extrusion plate in the cylinder toward the discharge plate, thereby discharging the adhesive material in the cylinder from the nozzle; A turning step of turning the cylindrical body by 180 degrees, In the conversion step, the extrusion plate is not taken out from the cylinder, the adhesion prevention material is removed from one side of the extrusion plate, the adhesion prevention material is attached to the other side of the extrusion plate, and the discharge plate is attached to the opposite side of the cylinder. How to use a caulking gun.

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