JP2001315864A - Adapter for sealant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adapter for a sealant wherein a head section is prevented from dropping during a refilling of a film packed sealant without substantially changing a conventional adapter structure. SOLUTION: For this adapter for a sealant, a head section 2 is detachably attached to the tip end section of a cylindrical adapter main body 1, and the head section 2 is constituted of a cap 3 and a nozzle 4 which is detachably fitted on the discharging port 3a of the cap. In such an adapter for a sealant, on the outer periphery of the adapter main body, a large diameter ring 8 is fitted, and a small diameter ring 9 is pinched between the cap 3 and the nozzle 4 of the head section 2. At the same time, the large diameter ring and the small diameter ring are connected to each other by a connecting member 7. Then, at least the large diameter ring 8 is formed in such a manner that a flexible band-shape sheet 8a may be wound around the adapter main body 1, or formed of an elastic material in a manner to seam the periphery of the adapter main body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealant adapter used by loading a sealant packed in a film container (hereinafter referred to as a film pack sealant), and more particularly, to a method for converting a used film container into a new film pack sealant. The present invention relates to a sealant adapter that can prevent a head accident that easily occurs when refilling.

[0002]

2. Description of the Related Art In a conventional disposable sealant cartridge, the sealant is directly filled in a cartridge body, and when the internal sealant is used up, the main body container is discarded. However, as control of waste pollution has become a major social issue, disposable cartridges for sealants have been gradually shunned, and film packs containing sealants are filled into the adapter body, and a new film is used each time it is used. While refilling with a pack sealant, a sealant adapter of a film pack sealant refilling type, which is used repeatedly for the main body of the adapter, has come to be used.

[0003] However, this sealant adapter of the film pack sealant refill system is used, for example, when refilling the film pack sealant at a high construction site, when the head part is removed from the tip of the adapter body, the head part is removed. There is a problem that is accidentally dropped on the ground. For this reason, the caulking operation must be temporarily interrupted, and the working efficiency may be significantly reduced.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sealant for a sealant which prevents a head portion from dropping during a refilling operation of a film pack sealant without substantially changing the structure of a conventional sealant adapter. To provide an adapter.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a head portion is detachably attached to a distal end portion of a cylindrical adapter body, and the head portion is detachably attached to a cap and a discharge port of the cap. A large diameter ring is fitted around the outer periphery of the adapter body, a small diameter ring is sandwiched between the cap of the head portion and the nozzle, and the large diameter ring and the small diameter ring are attached to the adapter. And a connecting member, and at least the large-diameter ring is formed such that a flexible band-shaped sheet is wound around the adapter body.

According to another aspect of the present invention, a head portion is detachably attached to a distal end portion of a cylindrical adapter body, and the head portion is detachably attached to a cap and a discharge port of the cap. In a sealant adapter composed of a nozzle attached to the sealant, a large-diameter ring is fitted around the outer periphery of the adapter body, and a small-diameter ring is sandwiched between the cap and the nozzle of the head portion. The small-diameter ring is connected to each other by a connecting member, and at least the large-diameter ring is formed from an elastic material so as to be wound around the adapter body.

In each of the above sealant adapters, a small-diameter ring is connected to a large-diameter ring fitted to the adapter body via a connecting member, and a head portion is connected to the small-diameter ring. Even if the head part removed from the main body falls from the hand, the head part can be locked in a suspended state on the adapter main body. Moreover, since the large-diameter ring is simply fitted to the adapter body and the small-diameter ring is merely clamped between the head cap and the nozzle, the structure of the conventional sealant adapter is not substantially changed, that is, The conventional structure may be used, and fall prevention can be performed without manufacturing a new expensive mold.

In order to prevent the head portion from dropping in the above configuration, it is necessary to lock the large-diameter ring so as not to fall off the adapter body. In the former invention, since the large-diameter ring is formed so as to be wound around the adapter body from the flexible belt-shaped sheet, for example, when a part of the circumference of the large-diameter ring is pulled via the connecting material, the belt-shaped ring is formed. The rest of the seat is in close contact with the adapter body and the brake is applied so that it does not fall out of the adapter body. Further, in the latter invention, since the large-diameter ring is formed so as to be wound around the adapter main body by the elastic material, the large-diameter ring can be held by the elastic force so as not to come off from the adapter main body.

Further, according to the present invention, the small-diameter ring provided as a pair with the above-described large-diameter ring is omitted, and the other end of the connecting member provided with the small-diameter ring is directly connected to the nozzle to be integrated. It may be something that has been made.

That is, in the sealant adapter, the head portion is detachably attached to the distal end portion of the cylindrical adapter body, and the head portion is constituted by a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring formed so that a flexible belt-shaped sheet is wound around the outer periphery of the adapter body is fitted, a string-shaped connecting member is connected to the large-diameter ring, and the other end of the connecting member is connected to the nozzle. It may be configured to be integrally connected.

Also, in the sealant adapter, a head portion is detachably attached to a distal end portion of the cylindrical adapter body, and the head portion is constituted by a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring formed so as to be tightened by elastic force was fitted to the outer periphery of the adapter body, a string-shaped connecting member was connected to the large-diameter ring, and the other end of the connecting member was integrally connected to the nozzle. It may be something.

In the latter case of the present invention, only the nozzle is integrated with the connecting member, so that the conventional nozzle mold cannot be used as it is, but the remaining main components such as the adapter body, cap, plunger, etc. The conventional structure may be used, and the above-described object of the present invention can be achieved without newly manufacturing a mold.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an adapter body, a head portion, a plunger and the like of a sealant adapter can be used with a conventional structure without any particular structural change. As the materials of these components, those conventionally used such as thermoplastic resins and metals can be used as they are. Among these, a thermoplastic resin that facilitates integral molding by injection molding is preferable. The type of the thermoplastic resin is not limited, for example, polyethylene,
Polypropylene, polyester resin, vinyl chloride resin,
Examples thereof include a fluorine resin, a polyamide resin, an ABS resin, a polycarbonate resin, a polyacetal resin, and a styrene resin.

In the present invention, the sealant contains a caulking material and is usually a paste or viscous liquid at normal temperature. Examples include moisture-curable silicone sealants, silane-modified polyether sealants, polyurethane sealants, polysulfide sealants; dry-curable acrylic sealants, SBR sealants, butyl rubber sealants; and oil-based caulks.

FIG. 1 shows an example of the sealant adapter of the present invention, in which some of the components are disassembled.

In FIG. 1, 1 is an adapter body, and 2 is a head. The head unit 2 includes a cap 3 and a nozzle 4. The cap 3 is detachable by inserting a rear end portion into the tip end portion of the adapter body 1, and the nozzle 4 is detachable by screwing into the cylindrical discharge port 3 a of the cap 3. A plunger 5 is inserted inside the adapter body 1 so as to be slidable in the axial direction. The adapter body 1, the cap 3 of the head portion 2, the nozzle 4, and the plunger 5 are all injection-molded from a thermoplastic resin such as polyethylene or polypropylene. A connector 6 is attached to the sealant adapter having such a configuration so as to straddle between the adapter body 1 and the head portion 2.

The connecting member 6 is formed by connecting a large-diameter ring 8 to one end of a flexible connecting member 7 and a small-diameter ring 9 to the other end. Of the rings 8 and 9 at both ends, the smaller-diameter ring 9 is externally inserted into the cylindrical discharge port 3 a of the cap 3, and the nozzle 4 is further screwed into the cap 3.
And the nozzle 4. The large-diameter ring 8 is formed so as to wind in a plane direction from the flexible belt-shaped sheet 8 a to the outer periphery of the adapter body 1.

Since the band-shaped sheet 8a of the large-diameter ring 8 is flexible and wound around the width of the adapter body 1 in the axial direction, when the connecting member 7 is pulled toward the head 2 side. The large-diameter ring 8 only obliquely inclines the portion where the connecting member 7 is connected, and the remaining portion is brought into close contact with the adapter body 1 to generate a large braking action, so that there is no displacement in the axial direction. In particular, this braking action is performed by the band-shaped sheet 8
When the connection position with respect to a is the edge portion on the side opposite to the distal end side of the adapter body 1, the size can be further increased.

That is, when the connecting position of the connecting member 7 to the edge of the band-shaped sheet 8a of the large-diameter ring 8 is set to the above-described positional relationship, the connecting member 7 is pulled toward the head portion 2 so that the width of the band-shaped sheet 8a is changed. The edge (right side in the figure) to which the connecting member 7 in the direction is connected rises, and the edge on the opposite side is strongly pressed against the outer peripheral surface of the adapter body 1, so that a greater braking action is generated. is there. Further, as shown in the example of the drawing, a tongue piece 10 is formed on a part of the belt-shaped sheet 8a, and the tongue piece 10 is bent inward,
When inserted between the large-diameter ring 8 and the adapter body 1, a greater braking effect can be generated in the axial direction of the adapter body 1.

The caulking operation is performed by attaching the sealant adapter having the above structure to the semicircular support cylinder 21 of the caulking gun 20 as shown in FIG.

That is, the film pack sealant 30 is inserted into the adapter body 1 from which the head part 2 has been removed, and the tip part is cut. Next, the head portion 2 having the tip of the nozzle 4 cut and opened is mounted, the lever 22 of the caulking gun 20 is pulled, the pressing plate 24 at the tip of the rod 23 is advanced, and the plunger 5 is pushed in. The sealant can be discharged from the tip of the nozzle 4.

When the sealant in the film pack sealant 30 has been used up and the film pack sealant is to be refilled, the head portion 2 is removed from the adapter body 1, the empty film container is taken out, and replaced with a new film pack sealant. . In such a refilling operation of the film pack sealant, even if the operator releases the head unit 2, the head unit 2 is connected to the adapter body 1 through the connecting tool 6 having the above-described configuration.
Never fall from.

The connecting tool 6 illustrated in FIG. 1 can be formed by punching out a cut piece as shown in FIG. The small-diameter ring 9 and the connecting member 7 are cut into the same ring shape and band shape in plan view.
Band-shaped sheet 8 divided into two rows through slits 11
a, 8a, so that the belt-shaped sheets 8a, 8a have a three-dimensional ring shape.

That is, two rows of strip-shaped sheets 8a, 8a
Are spread on both sides in the direction of the arrow, and by inserting the adapter body 1 into the ring, the ring is pushed and spread while being pressed against the outer peripheral surface in the surface direction, so that the three-dimensional large-diameter ring 8 is formed. It has become. In the process of forming the three-dimensional large-diameter ring 8 in this way, if the tongue piece 10 is folded inward, the large-diameter ring 8 as shown in FIG. 1 can be obtained.

As the connecting member 6, at least the large-diameter ring 8 is made of a flexible band-like sheet 8a.
2 is not necessarily limited to the configuration shown in FIG. 2, and the other connecting members 7 and the small-diameter ring 9 may be formed integrally with the large-diameter ring 8 or It may be formed individually. The belt-like sheet forming the large-diameter ring 8 is molded from a flexible thermoplastic resin. The type of the resin is not particularly limited, but it is preferable that the band-shaped sheet is easy to bend and does not break when bent. For example, polyethylene,
Polypropylene, polyester resin, vinyl chloride resin,
Fluororesin, polyamide resin, ABS resin and the like can be mentioned.

The small diameter ring is preferably formed from the same thermoplastic resin sheet as the large diameter ring, but may be a ring having a circular cross section or a polygonal cross section. The material may be a metal other than the thermoplastic resin. The connecting member may be in the form of a strip or a string as long as it has flexibility, and the material is preferably a thermoplastic resin which is easily bent.

It is preferable that both the band-shaped sheet and the connecting member forming the large-diameter ring are thin, for example, 0.5 mm or less. If the thickness is too large, the arrangement of the film pack sealant in the caulking gun will be incorrect, making it difficult to extrude the sealant in the film pack sealant.

FIG. 3 is a partially exploded view of another example of the sealant adapter of the present invention.

In this embodiment, the basics of the adapter for the sealant such as the adapter body 1, the head portion 2, and the plunger 5 are the same as those in FIG. The difference is that the diameter ring 8 and the small diameter ring 9 are integrally formed. In particular, large-diameter ring 8
Has an inner diameter slightly smaller than the outer diameter of the adapter body 1 so that the outer periphery of the adapter body 1 is tightened by the elastic force of the elastic material.

As shown in FIG. 1, the connecting member 6 has a large-diameter ring 8 fitted to the adapter body 1 and a small-diameter ring 9.
Is externally inserted into the cylindrical discharge port 3a of the cap 3 of the head unit 2,
The head portion 2 is connected to the adapter body 1 through the connecting member 7 so as to be held by the nozzle 4. With the attachment of the connecting tool 6, it is possible to prevent the head portion 2 from falling when the film pack is refilled.

The connecting member in this embodiment is not limited to the structure shown in FIG. 3 as long as at least the large-diameter ring is formed from an elastic material so as to be wound around the adapter body. That is, the connecting member and the small-diameter ring may be formed integrally with the large-diameter ring, or may be formed separately. Further, if the large-diameter ring is formed of an elastic material, the other members do not necessarily have to be made of an elastic material, and may be made of, for example, a thermoplastic resin or a metal. The type of the elastic material used for the large-diameter ring is not particularly limited, but it is preferable to use a synthetic rubber, a natural rubber, a thermoplastic elastomer, or the like.

FIG. 4 and FIG. 5 each show a further exploded part of still another example of the sealant adapter of the present invention.

In these embodiments, the sealant adapter of FIG. 4 omits the small-diameter ring 9 of the connector 6 in the embodiment of FIG. 1, and the sealant adapter of FIG.
In this embodiment, the small-diameter ring 9 of the connecting member 6 is omitted, and the end of the connecting member 7 is integrally formed so as to be directly connected to the nozzle 4.

Because of the integral molding, the connecting member 6 and the nozzle 4 are made of the same material. In the former case of FIG. 4, a thermoplastic resin is used, and in the latter case of FIG. 5, a thermoplastic elastomer is used. You.

In the case of the embodiment shown in FIGS. 4 and 5, since the nozzle is integral with the connecting member, the conventional sealant adapter mold cannot be used as it is, but the adapter body, cap, plunger Since the main components such as those described above can be kept in the conventional structure, they can be manufactured without preparing a new mold, and the object of the present invention can be achieved.

[0036]

As described above, according to the present invention, a large-diameter ring is provided on the adapter body so as to be engaged with the outer periphery thereof, and a connecting member for the large-diameter ring is provided on the head. The small-diameter ring connected via the pinch is sandwiched or the end of the connecting material is integrated with the nozzle of the head part, so that the film pack sealant can be substantially changed without substantially changing the structure of the conventional sealant adapter. It is possible to prevent the head part from being accidentally dropped during refilling work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of an example of an adapter for a sealant of the present invention in a partially separated manner.

FIG. 2 is a plan view of the connecting device used in FIG. 1 before assembly.

FIG. 3 is a perspective view showing a part of another example of the sealant adapter of the present invention.

FIG. 4 is a perspective view showing a part of still another example of the sealant adapter of the present invention.

FIG. 5 is a perspective view showing a part of still another example of the sealant adapter of the present invention in a partially separated manner.

6 is a schematic cross-sectional view showing a part of a use example in which the sealant adapter of FIG. 1 is loaded in a caulking gun.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adapter main body 2 Head part 3 Cap 3a Cylindrical discharge port 4 Nozzle 5 Plunger 6 Connecting tool 7 Connecting material 8 Large diameter ring 8a Band-shaped sheet 9 Small diameter ring

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsumi Kubo, 1-4-1 Shibata, Kita-ku, Osaka City, Osaka Prefecture Toray Dow Corning Silicone Co., Ltd. Osaka Branch (72) Inventor Tomohiko Kobayashi Osaka City, Osaka 1-4-4 Shibata, Kita-ku Toray Dow Corning Silicone Co., Ltd. Osaka Branch F term (reference) 3E014 KA05 3E067 AA04 AB96 BA02A BB14A BB15A BB16A BC03A EA17 EB32 FA01 FC01 3E084 AA02 AA12 AB06 BA03 CA01 CB02 DB01 EB03 FA09 FB01 FD04 GA04 GA06 GA08 GB04 GB06 HD04 JA14 JA15 JA16 LA17 LB02 LB07 LC01 LD01 4F041 CB03 CB41 CB43 4F042 AB00 FA23 FA28 FA36

Claims (10)

[Claims] 1. A sealant adapter comprising a head portion detachably attached to a distal end portion of a cylindrical adapter main body, and the head portion comprising a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring is fitted to the outer periphery of the adapter body, and a small-diameter ring is sandwiched between the cap and the nozzle of the head part. The large-diameter ring and the small-diameter ring are connected to each other with a connecting material, and An adapter for a sealant in which a ring is formed so that a flexible belt-shaped sheet is wound around the adapter body. 2. The sealant adapter according to claim 1, wherein the connecting member is connected to an edge of the belt-shaped sheet of the large-diameter ring opposite to a distal end side of the adapter main body. 3. A tongue piece is provided in a part of the belt-like sheet,
3. The sealant adapter according to claim 1, wherein said tongue piece is folded between said band-shaped sheet and said adapter body. 4. A sealant adapter comprising: a head portion detachably attached to a distal end portion of a cylindrical adapter main body; and a head portion comprising a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring is fitted to the outer periphery of the adapter body, and a small-diameter ring is sandwiched between the cap and the nozzle of the head portion, and the large-diameter ring and the small-diameter ring are connected to each other with a connecting material, and at least the large-diameter ring is connected. A sealant adapter formed by winding a ring around an adapter body from an elastic material. 5. The sealant adapter according to claim 4, wherein the elastic material is a synthetic rubber, a natural rubber, or a thermoplastic elastomer. 6. A sealant adapter comprising: a head portion detachably attached to a distal end portion of a cylindrical adapter main body; and the head portion comprising a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring formed so that a flexible belt-shaped sheet is wound around the outer periphery of the adapter body is fitted, a string-shaped connecting member is connected to the large-diameter ring, and the other end of the connecting member is connected to the nozzle. Adapter for sealant connected together. 7. The sealant adapter according to claim 6, wherein the connecting member is connected to an edge of the ring-shaped sheet opposite to a distal end of the adapter body. 8. A tongue portion is provided on a part of the strip-shaped sheet,
8. The sealant adapter according to claim 6, wherein the tongue piece is folded between the band-shaped sheet and the adapter body. 9. A sealant adapter comprising a head portion detachably attached to a distal end portion of a cylindrical adapter main body, and the head portion comprising a cap and a nozzle detachably attached to a discharge port of the cap. A large-diameter ring formed so as to be tightened by elastic force was fitted to the outer periphery of the adapter body, a string-shaped connecting member was connected to the large-diameter ring, and the other end of the connecting member was integrally connected to the nozzle. Adapter for sealant. 10. The sealant adapter according to claim 9, wherein at least the large-diameter ring is formed of a synthetic rubber, a natural rubber, or a thermoplastic elastomer.