JPH0715559U - Discharge container - Google Patents

Abstract

(57) [Summary] [Purpose] The cap can be attached and removed with one touch, and the opening can be reliably closed no matter where the nozzle is cut and opened or cut diagonally. Moreover, it is an object of the present invention to provide a discharge container capable of reliably ensuring the sealing property when a cap is provided after opening. [Constitution] Container body (1) having a nozzle (2) with a tapered tip and a cap to be attached to the nozzle (2)
(4) A discharge container consisting of One or more contact rings (6) are provided on the inner circumference of the cap (4), and the nozzle at the time of opening the blind end side inner bottom of the cap (4).
Protrusions (7) are provided to seal the opening of (2) like a plug. The engaging portion (3) can be provided on the outer peripheral portion on the nozzle (2) side, and the engaging portion (5) can be provided correspondingly on the cap (4) side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a discharge container such as a squeezable tube, a soft bottle, and an extrudable cartridge.

[0002]

[Prior art]

 Tubes and soft bottles that have squeezing properties (squeeze properties) and cartridges that have extruding properties are useful as discharge containers that contain viscous substances such as adhesives, sealing agents, caulks, cosmetics, pharmaceuticals, and foods. .

A typical discharge container of this type has a structure in which a nozzle having a tapered tip end is provided at one end of a container body. When using it, cut an appropriate point on the tip side of the nozzle with a cutter and open it as the discharge port. The tip side of the nozzle is tapered so that the size of the discharge port at the time of opening is controlled by the cutting position.

After discharging the contents in the container body from the opened discharge port for use, it is necessary to seal the discharge port in order to use the rest of the contents for the next time or after use. It will be important.

Conventionally, the discharge port of an opened nozzle has been sealed by wrapping an adhesive tape around the discharge port or inserting disposable chopsticks or wood pieces into the opening. In addition, the contents may be left to naturally cure near the discharge port without sealing the discharge port.

In Japanese Utility Model Laid-Open No. 4-89743 filed by the applicant of the present application, a base end side portion having a threaded portion having a length x formed on the outer periphery and a tip end side which is not provided with a threaded portion and has a tapered end A nozzle having a structure in which the tip side portion of the length y is continuously provided, a container body integrally provided with the nozzle, and an effective internal length z having a threaded portion at least on the inner circumference at the base end side. A discharge container which is made of a cap and satisfies the relationship of x> z> y is shown. By using this discharge container, no matter where the nozzle is cut and opened, the opening formed in the cut surface can be sealed by the cap.

In Japanese Utility Model Laid-Open No. 62-33544 of the present inventor, a nozzle sealing device for an extrusion container in which a nozzle can be cut at an arbitrary position to select a discharge port has a closure member. There is shown a nozzle sealing device for an extrusion container, which comprises an attaching member for fixing the urging means for pressing it to the discharge port to the container. Here, the urging means specifically means a protrusion provided on the inner bottom portion on the blind end side of the cap having a bellows structure.

[0008]

[Problems to be solved by the device]

 The method of sealing the discharge port of the opened nozzle by winding an adhesive tape is time-consuming and complicated, and it is difficult to completely close the nozzle. In addition, in the method of inserting a piece of wood into the opening, the tip of the piece of wood must be cut so as to fit the opening, and the operation is also complicated. If you do not prepare tape or wood chips in advance, the sealing itself will not be possible.

When the contents are left to spontaneously cure near the opening without sealing the opening, the cured part must be pushed out by a screwdriver or the like for reuse, but for that purpose, the container body is required. There is a constraint that the nozzle and the nozzle must be separable from each other, and if the curing is too much, reopening itself becomes impossible, and the rest of the contents may not be usable.

In this regard, in the above-mentioned discharge container of Japanese Utility Model Laid-Open No. 4-89743, even if the nozzle is cut and opened at any position, the opening formed in the cut surface can be sealed by the cap. This is advantageous because it can be done, but since it uses a screwed structure, it requires a rotating operation to attach and detach the cap, and it is hard to say that it is a one-touch operation. Further, it is difficult to say that the sealing is not always perfect when the nozzle is cut obliquely.

The nozzle sealing device of Japanese Utility Model Laid-Open No. 62-33544 can also seal the opening formed in the cut surface even if the nozzle is cut at any position, but when the nozzle is cut diagonally. It is hard to say that the sealing is not perfect. Also, when the nozzle is long, there is a large difference in the length when cut near the tip of the nozzle and when cut near the base end side.Therefore, the length of the protrusion of the bellows mechanism on the blind end side inner bottom of the cap is the same. It may not be possible to absorb the difference in.

In the present invention, the cap can be attached / detached with one touch under such a background, and the opening can be surely cut regardless of where the nozzle is cut and opened or obliquely cut. It is an object of the present invention to provide a discharge container that can be closed at the same time and that can surely secure the sealing property when a cap is attached after opening.

[0013]

[Means for Solving the Problems]

 The discharge container of the present invention comprises a container body (1) having a nozzle (2) with a tapered tip and a cap (4) attached to the nozzle (2). One or more contact rings (6) are provided on the inner periphery of (4), and the opening of the nozzle (2) at the time of opening is sealed like a plug on the inner bottom of the cap (4) on the blind end side. It is characterized in that it is provided with a protrusion (7).

A particularly preferable discharge container of the present invention comprises a container body (1) having a nozzle (2) having a tapered tip side and a cap (4) attached to the nozzle (2). The discharge container is provided with an engaging part (3) on the outer peripheral part on the nozzle (2) side, while the engaging part (3) is fitted on the inner peripheral part on the cap (4) side. An engaging part (5) that engages with the part (3) is provided, and there is no one or a plurality of contact rings (6) on the inner peripheral part on the blind end side from the installation position of the engaging part (5) The cap (4) is further provided with a projection (7) at the blind end side inner bottom portion for plugging the opening of the nozzle (2) when opening.

The present invention will be described in detail below.

The discharge container of the present invention comprises a container body (1) having a nozzle (2) having a tapered end and a cap (4) attached to the nozzle (2).

As the container body (1), a squeezable tube, a soft bottle, a pushable cartridge, or the like is used.

A nozzle (2) having a tapered tip is integrally attached to one end of the container body (1). The container body (1) and the nozzle (2) may be manufactured at the same time, or the container body (1) and the nozzle (2) may be manufactured separately and integrated. In the latter case, the container body (1) and the nozzle (2) may be separable.

When the container body (1) is a tube, the contents are filled from the other end and closed, and when the container body (1) is a soft bottle, the contents are filled from the mouth. If the container body (1) is a cartridge, fill the contents from the other end and push in the piston.

The body of the container body (1) is composed of a single-layer or multi-layer resin layer. Some examples are single layer structure such as polyester elastomer single layer, high density polyethylene single layer, low density polyethylene / ethylene-acrylic acid copolymer / polyester / ethylene-acrylic, depending on the contents to be contained. A multi-layer structure of acid copolymer / low density polyethylene, linear low density polyethylene / ethylene-vinyl alcohol copolymer / linear low density polyethylene, linear low density polyethylene / polyvinylidene chloride / linear low density polyethylene, etc. is adopted.

The tip of the nozzle (2) is normally a blind end, but a through hole (for example, a through hole having an inner diameter of 1 to 3 mm) may be provided in advance.

In the present invention, one or more contact rings 6 are provided on the inner circumference of the cap 4. The plurality is, for example, about 2 to 6, especially 2 to 4.

When a plurality of contact rings (6) are provided on the inner peripheral portion of the cap (4), the openings formed by the contact rings (6) should have the same diameter. Alternatively, the opening may be narrowed toward the blind end. In the former case, the material of the cap (4) may be soft or hard, but in the latter case, the cap (4) is made of an elastomer because it absorbs different nozzle (2) diameters depending on the cutting site. Make sure to select a deformable one.

Furthermore, a projection (7) for sealing the opening of the nozzle (2) when opening is provided on the inner bottom of the cap (4) on the blind end side. The protrusion (7) is usually conical, but the conical surface may be composed of a surface having a negative curvature.

The protrusion (7) may have a shape having a conical head on the tip side of a neck portion having a small diameter. In this case, if the small-diameter neck is made flexible, the nozzle (2) fits into the shape of the opening when the nozzle (2) is cut diagonally.

The head (8) of the cap (4) is preferably formed to have a wide surface in plan view. By doing so, it is possible to stand upright when inverted, and it is easy to remove and fit the cap (4).

It is desirable to provide an engaging portion (3) on the outer peripheral portion on the nozzle (2) side, and at that time, the engaging portion (3) should be installed at a position closer to the base end side of the nozzle (2). Correspondingly, it is desirable to provide an engaging portion (5) that engages with the engaging portion (3) of the nozzle (2) on the inner peripheral portion on the side of the cap (4). Here, the engaging portions (3) and (5) may be, for example, ridge-ridge ridge meshing, ridge-groove groove fitting, or the like. The engagement force of is set so that it can be snapped on and off when a force is applied.

The discharge container of the present invention having the above structure has a high viscosity rubber adhesive, synthetic resin adhesive, silicone sealing agent, modified silicone sealing agent, urethane sealing agent, acrylic sealing agent. It is possible to suitably store a building material such as an agent, a polysulfide-based sealing agent, a butyl rubber sealing agent, an oil-based caulking agent, various putty agents, viscous cosmetics, toothpaste, pharmaceuticals, foods, and the like. The contained items are not limited to the above-mentioned viscous substances, and may be non-viscous liquids or powdery substances.

[0029]

[Action]

 In the discharge container of the present invention, the cap (4) is fitted on the nozzle (2) during the distribution process or in the unused state. Since the contact ring (6) is provided on the inner circumference of the cap (4), the nozzle (2) does not fall off from the cap (4). When the nozzle (2) is provided with the engaging part (3) and the cap (4) is provided with the engaging part (5), these engaging parts (3), (5) should be engaged. Good.

When using the discharge container of the present invention, first grasp the head (8) of the cap (4) and remove the cap (4), and then place the tip side part of the nozzle (2) at an appropriate position. Cut and open. As a result, a discharge port for pushing out the contents is formed at the tip side portion, so that external pressure is applied to the container body (1) to squeeze out or push out the contents. If the content has low viscosity, it may be possible to discharge without applying external pressure. Since the tip end side portion of the nozzle (2) is tapered, the diameter of the discharge port can be set as desired depending on the cutting position and cutting angle.

When the use of the contents is interrupted, the cap (4) is fitted on the tip side part of the nozzle (2), and the head (8) of the cap (4) is attached to the blind end side of the cap (4). The protrusion (7) provided on the inner bottom may be pressed until the opening of the nozzle (2) is sealed like a plug. As a result, even when the nozzle (2) is obliquely cut and opened, the opening of the nozzle (2) is sealed. Further, in this state, the contact ring (6) provided on the inner peripheral portion of the cap (4) is in strong contact with the outer periphery of the nozzle (2), so that a reliable seal is achieved. That is, in the container of the present invention, the contact ring (6) and the plug-like protrusion (7) provide a double seal.

When the use is restarted, the cap (4) can be removed with one touch simply by grasping the head (8) of the cap (4) with a hand and pulling it apart.

[0033]

【Example】

 Next, the present invention will be further described with reference to examples.

Example 1 FIG. 1 is a cut-away end view showing an example of the discharge container of the present invention before use. FIG. 2 is a cut end view showing a state in which the cap (4) is removed and the nozzle (2) is opened at the portion X in FIG. FIG. 3 is a cut end view of the nozzle (2) of FIG. 2 with the cap (4) attached again. FIG. 4 is a cut end view showing a state in which the cap (4) is removed, the nozzle (2) is opened at the portion Y in FIG. 1, and the cap (4) is attached again. FIG. 5 is a cut end view showing a state in which the cap (4) is removed, the nozzle (2) is opened at the portion Z in FIG. 1, and the cap (4) is attached again. FIG. 6 is a plan view of the cap (4) of the discharge container of FIG.

Made of an extruded product of a low-density polyethylene / ethylene-acrylic acid copolymer / polyester / ethylene-acrylic acid copolymer / low-density polyethylene layer structure of 150 μm / 20 μm / 30 μm / 20 μm / 150 μm On the body, prepare a container body (1) with a nozzle made of medium density polyethylene injection-molded product and a nozzle (2) with the shoulders fused, and sealant from the bottom opening of this container body (1). And then the bottom was closed by heat sealing.

(2) is a nozzle, the tip side of which is tapered. The nozzle (2) is provided with an engaging portion (3) on the outer peripheral portion on the slightly proximal side thereof.

(4) is a cap made of a medium-density polyethylene injection-molded product, the inner peripheral portion of which is a projection-shaped engaging portion (5) which engages with the engaging portion (3) of the nozzle (2). ) Is provided. Further, four contact rings (6a), (6b), (6c), (6d) are provided on the inner peripheral portion on the blind end side of the installation position of the engaging portion (5). Further, a conical protrusion (7) is provided on the inner bottom of the cap (4) on the blind end side so as to seal the opening of the nozzle (2) when opening. The projection (7) has a conical surface whose surface has a negative curvature. The head (8) of the cap (4) is formed into a wide cross-shaped surface in plan view.

The tube-type discharge container having the above structure has excellent sealing property regardless of where the nozzle (2) is cut or when cut obliquely. In addition, the cap (4) can be attached to and detached from the nozzle (2) with one touch, and it can be erected in an inverted state.

Embodiment 2 FIG. 7 is a cut end view showing another example of the discharge container of the present invention.

By blow molding using high density polyethylene, a molded product was obtained in which the cylindrical container body (1) and the tapered nozzle (2) were integrally molded by blow molding. The nozzle (2) is provided with an engaging portion (3) on the outer peripheral portion on the slightly proximal side thereof. After filling the sealing agent from the bottom opening of the container body (1), a piston was fitted into the open other end to form a cartridge.

The cap (4) was molded by injection-molding a polyolefin elastomer (“MILASTOMER” manufactured by Mitsui Petrochemical Co., Ltd.).

On the inner peripheral portion of the cap (4), there is provided a convex engagement portion (5) which engages with the engagement portion (3) of the nozzle (2). In addition, three contact rings (6a), (6b), (6a), (6b), on the inner circumference of the blind end side of the position where the engaging part (5) is installed so that the opening becomes narrower toward the blind end side. (6c) is provided. Furthermore, a conical projection (7) for sealing the opening of the nozzle (2) when opening is provided on the inner bottom of the cap (4) on the blind end side. The head (8) of the cap (4) is formed into a wide cross-shaped surface in plan view.

The discharge container having the above structure has excellent sealing property regardless of where the nozzle (2) is cut or cut obliquely. Further, the cap (4) can be attached / detached to / from the nozzle (2) with one touch, and can be hung in an inverted state.

Embodiment 3 FIG. 8 is a cut end view showing another example of the cap (4) in the discharge container of the present invention.

In this embodiment, three contact rings (6a), (6b), (6c) are provided on the inner peripheral surface of the cap (4) so that the opening becomes narrower toward the blind end. Further, the cap (4) is provided with a protrusion (7) on the inner bottom portion on the blind end side, in which a conical head portion is connected to the tip end side of a small diameter neck portion having flexibility.

[0046]

[Effect of device]

 In the discharge container of the present invention, the opening of the nozzle (2) is sealed by the projection (7) provided on the inner bottom of the cap (4) on the blind end side, and the inner peripheral portion of the cap (4) is closed. The outer circumference of the nozzle (2) comes into strong contact with the contact ring (6) provided on the. Therefore, no matter where the nozzle (2) is cut or cut diagonally, a reliable seal can be achieved. Also, the cap (4) can be attached and removed with one touch, and when the head (8) of the cap (4) is formed on a wide surface, it is possible to stand down when it is inverted, and the cap (4) It has excellent effects such as easy removal. Therefore, the present invention is extremely useful in practice.

[Brief description of drawings]

FIG. 1 is a cut end view showing an example of a discharge container of the present invention before use.

[Fig. 2] Remove the cap (4), and nozzle at the position of X in Fig. 1.
FIG. 3 is a cut end view showing a state where (2) is opened.

3 is a cut end view of the nozzle (2) of FIG. 2 with the cap (4) attached again.

[Fig. 4] Remove the cap (4) and nozzle at the Y part of Fig. 1.
FIG. 6 is a cut end view showing a state in which the cap (4) is mounted again after opening the (2).

[Fig. 5] Remove the cap (4), and nozzle at the Z part in Fig. 1.
FIG. 6 is a cut end view showing a state in which the cap (4) is mounted again after opening the (2).

6 is a plan view of the cap (4) of the discharge container of FIG. 1. FIG.

FIG. 7 is a cut end view showing another example of the discharge container of the present invention.

FIG. 8 is a cut end view showing another example of the cap (4) in the discharge container of the present invention.

[Explanation of symbols]

 (1) ... container body, (2) ... nozzle, (3) ... engaging part, (4) ... cap, (5) ... engaging part, (6), (6a), (6b), (6c) , (6d)… Contact ring, (7)… Protrusion, (8)… Head

Claims (6)

[Scope of utility model registration request] 1. A container main body (1) having a nozzle (2) having a tapered end and a cap to be attached to the nozzle (2).
(4) A discharge container comprising (1) and (1) or more contact rings (6) are provided on the inner peripheral part of the cap (4), and the cap (4) is open at the blind end side inner bottom part. Discharge container characterized in that it is provided with a protrusion (7) for sealing the opening of the nozzle (2) in the form of a plug. 2. A container body (1) having a nozzle (2) having a tapered tip end and a cap to be attached to the nozzle (2).
(4), the engaging portion (3) is provided on the outer peripheral portion of the nozzle (2) side, while the nozzle (2) is provided on the inner peripheral portion of the cap (4) side. ) Is provided with an engaging portion (5) that engages with the engaging portion (3), and one or a plurality of contact rings are provided on the inner peripheral portion on the blind end side from the installation position of the engaging portion (5). (6) is provided, and further, a projection (7) for sealing the opening of the nozzle (2) when opening is provided on the inner bottom of the cap (4) on the blind end side, which is characterized in that . 3. A plurality of contact rings (6) are provided on the inner peripheral portion of the cap (4) on the blind end side in multiple stages such that the opening becomes narrower toward the blind end side of the cap (4). Claim 1
Or the discharge container according to 2. 4. The discharge container according to claim 1, wherein the projection (7) has a conical shape. 5. The discharge container according to claim 1, wherein the projection (7) has a conical head on the tip side of a neck having a small diameter. 6. The discharge container according to claim 1, wherein the head (8) of the cap (4) is formed in a wide surface in a plan view.