JP4165465B2 - Sealed container - Google Patents

Description

  The present invention relates to an airtight / oil-based ink for a writing instrument, ink for an ink jet printer, a cosmetic liquid such as an eyeliner, a coating liquid such as a paint, and a liquid such as a medicine in a fluidized state.

Conventionally, the main body of a container or a part thereof, for example, a cutting surface formed integrally with a dispensing nozzle has a circular simple cutting portion, and the outside and the inside formed by cutting the cutting portion. There is a container that uses a communication port that communicates as an outlet for contents. For example, there is a container in which a simple cutting part integrally formed by blow molding or injection molding is cut with a blade such as scissors, or by screwing by hand, the container can be opened and the content liquid can be poured out. In addition, when the content liquid is ink, there are those that can be replenished to a stamp or the like, both of which are widely known.
However, in the conventional structure, the content liquid can be extracted only in the longitudinal axis direction of the nozzle, and the object to be filled with the content liquid needs to secure a wide space near the filling port. For example, if a part that prevents the content liquid from being poured out is disposed at the tip of the filling port, the content liquid that has bounced off the part may be ejected from the filling port.
In addition, when the simple cut portion is structured to be threaded by hand, the cross-sectional shape of the cut portion in the conventional structure is a circle with a small diameter, so the resin constituting the container has high tensile elongation. If the resin is used, there is a problem that the resin stretches during thread cutting and the spout becomes small or is closed completely.
JP-A-11-130112. JP-A-7-68911.

  It has a simple cutting part formed integrally with the main body of the container or a part thereof, for example, a dispensing nozzle, and a communication port that communicates the outside with the inside formed by cutting the cutting part. In a container used as a spout, the first problem is to pour the content liquid in a direction other than the longitudinal axis direction of the nozzle.

  In addition, when a simple cutting part is made of a resin with high tensile elongation, even if the simple cutting part is threaded by hand, the resin stretches during screw cutting and the spout becomes small, or it can be completely closed. The second problem is to avoid the problem of end.

The present invention is a container for sealing and enclosing contents having fluidity, and has a cutting part formed integrally with the main body or a part thereof, and an external part formed by cutting the cutting part. In a container that uses a communication port that communicates with the inside as a spout for contents, the spout is at the tip of the injection nozzle part protruding from the main body, and the spout is 45 degrees with respect to the longitudinal axis direction of the injection nozzle part. While opening with an inclination of ˜90 degrees, the injection nozzle portion can be inserted into a replenishment hole to be refilled, the cross-sectional shape of the cutting portion is elliptical, and the spout is formed The point is that the part is recessed from its surroundings .

There are various ways to use this type of sealed container. For example, if you intend to replenish the contents in another container, such as refilling ink cartridges used in writing instruments, personal computer printers, etc., refill In general, a replenishment hole for injecting ink into the object is provided, and the nozzle portion of the container is inserted into the hole to inject the content liquid.
This is because the risk of the content liquid leaking out to the replenishment target can be greatly reduced when this method is used, compared to the case where the nozzle is not inserted into the hole.

  However, in order to adopt this method, the inflow of the content liquid is inhibited in the vicinity of the content liquid discharge line in order to prevent the injected content liquid from splashing and being discharged to the outside from the replenishment hole. Such a constituent member could not be arranged.

  Therefore, the present invention inhibits the inflow of the content liquid as described above by tilting the direction of the content liquid outlet that is opened by cutting the cutting portion with respect to the longitudinal axis direction of the nozzle by 45 degrees to 90 degrees. The discharge line of the content liquid is controlled in a direction to avoid the components.

In addition, since this type of container is a hermetically sealed container, it is often the case that the content liquid cannot be efficiently poured out simply by opening the spout. Therefore, in many cases, after opening the spout, pressing the main body or a part of the main body causes a volume change in the container and the content liquid is poured out. Therefore, a resin that is soft enough to be deformed by pressure, such as polyethylene, is often used for the container body or a part thereof.
However, when the content liquid contains an organic solvent, the resin may not be freely selected in order to prevent volatilization due to permeation. As a result, when the selected resin is a resin having a large tensile elongation, the cut portion can only be cut with a blade such as scissors or a cutter. Because if the simple cutting part is designed to have a small diameter and designed to be twisted by hand, when the simple cutting part is rotated, the resin in the simple cutting part is twisted toward the center of rotation. This is because the spout that has been extended becomes smaller in diameter than the designer intended, or in the worst case, it does not open at all.
However, the soft resins as described above often have a large tensile elongation, and the fact that it is not possible to freely select the resin when making this type of sealed container is a problem that has plagued many designers. is there. In addition, it is clear that the simple cutting part is easier for the user to cut by hand without using a knife such as scissors or a cutter, and even if a resin with a large tensile elongation is used, it is easy without using a knife. Therefore, there has been a demand for a design of a simple cutting portion that can be easily screwed.

Therefore, in the present invention, the cross-sectional shape of the simple cutting portion is an ellipse.

By making the cross-sectional shape of the simple cut portion elliptical in this way, the geometric center of the cross-section is not fixed at one point, so the direction of the tension applied to the resin when the simple cut portion is twisted and cut However, the stretched resin is difficult to converge on one point. As a result, a larger opening can be obtained as compared with the case where the cross-sectional shape of the simple cutting portion is circular. Moreover, the risk that the opening was completely blocked by the stretched resin could be greatly reduced.

The present invention is a container that seals and encloses contents having fluidity, and has a cutting part formed integrally with a main body or a part thereof, and an outside formed by cutting the cutting part. In a container that uses a communication port that communicates with the inside as a spout for contents, the spout is at the tip of the injection nozzle part protruding from the main body, and the spout is 45 degrees with respect to the longitudinal axis direction of the injection nozzle part. While opening with an inclination of ˜90 degrees, the injection nozzle portion can be inserted into a replenishment hole to be refilled, the cross-sectional shape of the cutting portion is elliptical, and the spout is formed Since the portion is recessed more than its surroundings , the internal structure to be refilled can be designed more freely. By the way, as shown in the prior art that the angle is less than 45 degrees, the bounced content liquid is ejected from the filling port, and even if it exceeds 90 degrees, it is poured out toward the filling port. The risk of jetting from the filling port increases.
In addition, by making the cross-sectional shape of the simple cutting part an ellipse, it suppresses the reduction of the opening due to the elongation of the resin when the simple cutting part is threaded by hand. A wider selection can be made. As a result, the types of content liquid contained in the container are also wider.

FIG. 1 is a longitudinal sectional view of a sealed container according to the present invention. Reference numeral 1 indicates an airtight container body composed of a single part. The container 1 is a hollow plastic molded product by blow molding, and the content liquid 2 is filled inside. Furthermore, after that, the welded portion 11 is welded and provided in a sealed state.
In the container 1, a simple cutting portion 13 is provided at a tip portion of the nozzle 12 at a position inclined by 90 degrees from the longitudinal axis direction of the nozzle 12. The simple cutting portion 13 can be easily cut with a blade such as scissors or a cutter, but can be easily cut by twisting the gripping portion 14 by hand. By cutting the simple cutting portion 13, the spout 15 communicates with the outside, and the container 1 is opened.
In consideration of the fact that some burrs and the like remain when the simple cutting portion 13 is cut, the portion where the spout 15 is formed is slightly recessed from the periphery thereof. By doing so, even if burrs remain when the simple cutting portion 13 is cut, the possibility that the burrs protrude laterally beyond the outer diameter of the nozzle 12 is reduced.

  Next, a supplementary example will be described. As shown in FIG. 2, the container 1 cut from the simple cutting part is for inserting and replenishing the content liquid 2 by inserting the nozzle 12 into the replenishment hole 31 of the replenishment target 3. At this time, as in the case of the conventional container 4 shown in FIG. 3, if the simple cutting portion 43 is in the longitudinal axis direction of the nozzle 42 and the content liquid poured out from the spout 45 is poured out in the longitudinal axis direction of the nozzle 42. 2, the content liquid 2 immediately after pouring out may be rebounded by the internal structural member 32 disposed inside the replenishment target 3 shown in FIG. 2, and the content liquid 2 once poured out may leak to the outside. However, in the container 1 according to the present invention, the spout 15 is inclined by 90 degrees with respect to the longitudinal axis direction of the nozzle 12, so that even when the content liquid is replenished to the replenishment target 3, There is no possibility that the internal component member 32 is directly applied, and the content liquid 2 does not leak to the outside due to the rebound.

Furthermore, the cut surface 5 of the simple cutting part 13 has an elliptical shape as shown in FIG. The shape of an ellipse has two geometric centers 51. With such a shape, the center when the gripping portion 14 is twisted is not easily fixed at one point, and as a result, the resin stretched when the gripping portion 14 is twisted is difficult to converge at one point.
If the simple cutting portion 13 has a conventional circular cutting surface 6 as shown in FIG. 5 and the container 1 is made of a resin having a large tensile elongation, the gripping portion 14 is twisted and cut. The resin may extend until the spout 15 becomes smaller, or the stretched resin may converge to one central point and completely close the spout 15 as shown in FIG. is there.
However, in the container 1 according to the present invention, the cross-sectional shape of the simple cutting portion 13 is an elliptical shape as shown in FIG.

  FIG. 7 shows a second example of the embodiment according to the present invention. In the present embodiment, the simple cutting portion 13 and the spout 15 that is opened by cutting it are inclined 45 degrees with respect to the longitudinal axis direction of the nozzle 12. By adopting such a form, the content liquid 2 can be poured into the gap between the inner wall of the replenishment target 3 and the internal component member 32.

  Since the closed container having the structure of the simple cutting portion according to the present invention has the above-mentioned operation and effect with the form shown in the claims, the shape corresponding to each of the replenishing objects having various shapes・ Even when a simple cutting part of a container made of a resin that has a structure and has high tensile elongation can be screwed by hand, the container can be opened reliably and the contents can be poured out. It can be done.

It is a longitudinal cross-sectional view of the airtight container by the 1st example of this invention. FIG. 5 is a state diagram of replenishment of the content liquid in the sealed container according to the present invention. It is a figure of the airtight container with the simple cutting part by the conventional shape. It is a simple cutting part cross-sectional shape of the airtight container by this invention. It is the simple cutting part cross-sectional shape of the airtight container by the conventional shape. It is a schematic diagram when the resin extended in the case of simple cutting part screwing converges to one point. It is the figure which showed embodiment by the 2nd example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 11 Welding part 12 Nozzle 13 Simple cutting part 14 Grasping part 15 Outlet 2 Contents liquid 3 Replenishment object 31 Replenishment hole 32 Internal component 4 Conventional container 42 Nozzle 43 Simple cutting part 5 Cutting surface 51 of a simple cutting part Geometry Center of Science 6 Cutting surface of simple cutting part by conventional structure

Claims (1)

A container that seals and encloses contents having fluidity, and has a cutting portion formed integrally with the main body or a part thereof, and communicates the outside and the inside formed by cutting the cutting portion. In the container that uses the communication port as a spout for the contents, the spout is at the tip of the injection nozzle part protruding from the main body, and the spout is 45 degrees to 90 degrees with respect to the longitudinal axis direction of the injection nozzle part. The injection nozzle portion can be inserted into the replenishment hole to be replenished, the cross-sectional shape of the cutting portion is elliptical, and the portion where the spout is formed is the periphery of the opening. An airtight container characterized by being more recessed .

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