JP4828867B2 - Outlet - Google Patents

Description

The present invention relates to a spout attached to an end edge of a flexible packaging bag that contains a container such as food, beverage, or detergent by means of heat welding or the like. The present invention relates to a formed closure plug-integrated spout.

Conventionally, the above-mentioned flexible packaging bags are widely used because they are inexpensive and easy to handle. Furthermore, in recent years, in order to improve the pouring property of the contents, a synthetic resin pouring outlet is attached to the edge of the flexible packaging bag by means such as heat welding. These spouts are formed so that the main body and the closure plug are integrally formed through the thin wall portion so as not to impair the inexpensive advantage of the flexible packaging bag. When used, the thin-walled portion is broken to form a dispensing opening, and after use, the dispensing opening is re-sealed with a closing plug. (For example, refer to Patent Document 1.)

JP-A-11-227808

Thus, the above-mentioned conventional closure plug-integrated spout has a problem that it is difficult to break the thin-walled portion because the grip piece is small at the time of opening, and it is difficult to remove the closure plug at the time of reopening. This is a very difficult task for children. Further, since the flexible packaging bag is formed by forming a flexible synthetic resin sheet into a bag shape, there is a possibility that the self-supporting stability of the flexible packaging bag is deteriorated and falls as the amount of stored items decreases. Due to this impact, there is a problem that the closure plug is detached from the main body and the contents are leaked.

The present invention has been made in view of the above-described problems, and the main technical problem thereof is a low-cost re-sealing function, and a thin-walled portion that connects the main body portion and the closing plug when opening the plug. Can be easily broken to form a dispensing opening, and the closure plug can be easily removed at the time of restarting the plug, and effectively prevents the closure plug from being accidentally removed due to an external impact. Is to provide a spout.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
The spout according to the present invention includes a main body portion and an obturator plug having a finger hook portion. The main body portion has a pouring tube, and one end thereof has a pouring path communicating with the pouring tube. The shape-shaped mounting part is continuously formed, and the other end is continuously formed with a blocking plug that closes the tip of the dispensing tube via the thin wall part, and the plug opening auxiliary projection on the outer peripheral surface of the dispensing tube Is formed, and the closing plug is provided with a contact portion. According to the present invention, the opening assisting protrusion is formed to be inclined with respect to the center line of the dispensing cylinder. According to the present invention, the opening assistance protrusion is an annular protrusion having at least one inclined portion inclined with respect to the center line of the dispensing cylinder, and the annular protrusion has a lowest point and an uppermost point. Features. According to the present invention, the lowest point of the annular protrusion is located on the longitudinal center line of the rhombus-shaped mounting portion, and the highest point is located on an orthogonal line orthogonal to the center line. According to the present invention, the closing plug includes a fitting protrusion that is liquid-tightly fitted on the inner surface of the dispensing tube and a pair of finger hooks, and the dispensing tube is between the fitting protrusion and the finger hooking portion. A gap for sandwiching the opening end of the finger is formed, and the contact portion is formed at the inner end of the finger-hanging portion facing the fitting protrusion. According to the present invention, the main body and the closing plug are connected by a connecting piece.

The spout of the present invention can easily form a spout opening, and even when reopening, the stopper plug abutment formed on the outer surface of the spout tube slides and rotates while the stopper plug abutment portion slides and rotates. Since the plug is moved upward, it can be easily opened. In addition, the lowest point of the above-mentioned opening assistance protrusion is arranged on the center line in the longitudinal direction of the rhombus-shaped mounting portion of the spout main body, and the contact portion is positioned above the center line when closing the plug. The part does not protrude outward, and the blocking plug does not come off due to an external impact.

A preferred embodiment of a spout constructed according to the present invention will be described below in detail with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 4, the spout indicated as 1 as a whole constructed according to the present invention is integrally formed from a suitable synthetic resin such as polypropylene or polyethylene. In more detail, the spout 1 has a main body 2 and an obturator plug 3 as main components, and both are integrally formed through a thin portion 4 that can be broken as shown in FIG. The thin portion 4 is formed of a so-called score in which the material thickness is reduced. The main body 2 and the closing plug 3 are connected by a thin string-like connecting piece 16 so that the closing plug 3 is not lost after opening. The connecting piece 16 is held by a breakable bridge 17 so that the spouts do not get entangled during transportation or the like.

The main body 2 has a cylindrical dispensing cylinder 5. At one end of the pouring cylinder 5, a mounting portion 19 having a pouring path 18 communicating with the pouring cylinder is continuous, and is formed in a diamond shape on the plan view as shown in FIG. The attachment portion 19 is attached by means such as heat welding in a state where both side surfaces of the attachment portion are sandwiched between end edges of a soft packaging bag (not shown). As shown in FIG. 1, a plurality of longitudinal ribs 7 and transverse ribs 6 are disposed on the mounting surface, and thin tongue pieces 8 are formed at both ends in the longitudinal direction. This is provided in order to strengthen the welding force between the soft packaging bag and the spout at the time of attachment.

A blocking plug 3 is continuously formed at the other end of the dispensing cylinder 5 through a thin portion 4 that can be broken. The obturator plug 3 includes a fitting protrusion 11 that is liquid-tightly fitted on the inner surface of the opening end of the dispensing cylinder, and a pair of flat finger rests 10 as main components. A gap 15 is formed between the fitting protrusion 11 and the finger hooking portion 10 so as to sandwich the opening end of the extraction tube when the plug is closed, and the inner end of the finger hooking portion 10 facing the fitting protrusion 11 is notched. The contact portion 14 is formed. By adopting such a configuration, since the contact portion 14 does not protrude, it is possible to prevent the closure plug 3 from being separated from the main body portion 2 due to an impact or the like and the contents to be leaked. An insertion protrusion 12 is formed on the outer surface of the insertion protrusion 11 to be fitted to the inner surface of the dispensing cylinder, and keeps a sealed state at the time of reclosing. The finger-hanging portion 10 is a flat-shaped finger-hanging surface, and its edge portion has a thickness 13 for preventing slippage.

If the description is further continued, an opening assisting protrusion 9 is formed on the outer surface of the dispensing tube 5. The plug opening auxiliary projection 9 is an auxiliary projection for easily removing the blocking plug at the time of restart plugging, and is the most important feature in the present invention. As shown in FIG. 1, the opening assisting projection 9 is inclined with respect to the center line L of the dispensing cylinder (here, the center line L is a vertical line passing through the center of the dispensing cylinder 5). It is preferable that the protrusion is an annular protrusion having an inclined portion that is inclined with respect to the center line L as shown in FIGS. The annular protrusion has a lowermost point 21 and an uppermost point 22, and the lowermost point 21 is a longitudinal center line M (the longitudinal center line M here) of the rhombus-shaped mounting portion 19 shown in FIG. 3. Means a line passing through the diameter of the dispensing cylinder and the diagonal line in the longitudinal direction of the rhombus-shaped mounting portion 19. The uppermost point 22 is on an orthogonal line N orthogonal to the center line M. positioned.

Next, the method for using the spout of the present invention will be described in detail. When the contents are first taken out from the flexible packaging bag, if the closing plug 3 is applied with force in the opening direction A shown in FIG. 3 (for example, counterclockwise), the thin-walled portion 4 is broken and a dispensing opening is formed. . The finger hooking portion 10 is a flat finger hooking surface, and since the periphery of the finger hooking surface is formed with a thickness of 13, the thin wall portion 4 can be easily broken without the finger slipping. After pouring out the contents as appropriate, the fitting protrusion 11 of the separated plug 3 is directed in the inverted direction (upward and downward in the drawing) as shown in FIGS. When fitted, the fitting ridge 12 is fitted in a liquid-tight manner to the inner surface of the dispensing cylinder 5, so that the contents do not leak out. Further, as shown in FIG. 3, the lowest point 21 of the opening assisting protrusion 9 is positioned on the central axis M in the longitudinal direction of the rhombus-shaped mounting part, and the contact part 14 is positioned above the lowest point 21. Therefore, the finger-hanging portion 10 is held at the closing position on the same plane as the central axis M. Even when an impact from the outside is applied to the spout by setting the closing position, the closing plug 3 is not easily removed unexpectedly, and there is no fear of leakage of the contents.

When resuming the stopper, the finger hooking part 10 is put on a finger, and when the closing plug 3 is rotated in the same direction A as shown in FIG. 3, the upper surface of the opening assisting protrusion 9 shown in FIG. 14 slides and gradually moves obliquely upward. When the plug 3 is further rotated, the fitting protrusion 11 is detached from the dispensing tube 5 and the plug opening is completed.

It is a front view which shows one Example of the spout which concerns on this invention. It is a side view of the spout shown in FIG. It is a top view of the spout shown in FIG. It is sectional drawing of the spout shown in FIG. It is a front view of the plugging state of the spout shown in FIG. It is sectional drawing of the clogging state of the spout shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outlet 2 Main body part 3 Blocking plug 4 Thin part 5 Outlet tube 9 Opening auxiliary protrusion 11 Insertion protrusion 14 Contact part 18 Outlet path 20 Thin part formation line 21 Bottom point 22 Top point A Opening direction L Center Line M Longitudinal center line N Orthogonal line

Claims (5)

A spout attached to the mouth of the container, the spout comprising a main body and a closure plug having a finger hook, the main body having a spout tube, and having a spout at one end thereof. A rhombus-shaped attachment portion having a pour-out path communicating with the take-out tube is continuously formed, and the other end is continuously formed with the closing plug for closing the tip of the pour-out tube through a thin-walled portion. An opening assisting protrusion is formed on the outer peripheral surface,
The obturator plug includes a fitting protrusion that is liquid-tightly fitted into the inner surface of the dispensing cylinder, and a pair of finger hooks.
A gap is formed between the insertion protrusion and the finger hook to sandwich the opening end of the dispensing cylinder, and the opening assist is provided at the inner end of the finger hook facing the insertion protrusion at the time of reopening. A spout, characterized in that a spout is formed that slides while abutting against the protrusion and moves the blocking plug upward .   The spout according to claim 1, wherein the opening assisting protrusion is formed in an inclined shape with respect to a center line of the pouring tube.   The plug opening auxiliary protrusion is an annular protrusion having at least one inclined portion inclined with respect to a center line of the dispensing cylinder, and the annular protrusion has a lowermost point and an uppermost point. The spout according to Item 1.   4. The spout according to claim 3, wherein the lowest point of the annular protrusion is located on a longitudinal center line of the rhombus-shaped mounting portion, and the highest point is located on an orthogonal line orthogonal to the center line. The spout according to any one of claims 1 to 4 , wherein the main body and the closing plug are connected by a connecting piece.

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