JP4734934B2 - Refillable pouch nozzle structure - Google Patents

Description

  The present invention fills a bottle with a dispensing mechanism with liquid contents, dispenses and consumes the liquid contents using the dispensing mechanism, and refills the consumed liquid contents into a bottle from a refill pouch. The present invention relates to the structure of the nozzle part of the pouch.

  In a bottle or the like equipped with a pump-type dispensing mechanism, there is a system in a usage form in which a refillable pouch filled with a content liquid is prepared in preparation for the consumption of the content liquid in the bottle. The refilling pouch is provided with a pouring nozzle at the end of the trunk, and the pouring outlet at the tip of the pouring nozzle is closed with a tab when not opened. When refilling the bottle, remove the pump-type dispensing mechanism of the bottle and open the inlet.On the other hand, cut the tab of the nozzle of the refill pouch and open the spout. Insert the liquid into the inlet.

JP-A-11-227801 JP 2000-25799 A JP 2000-118543 A JP 2003-137317 A

  However, since the refillable pouch is in a state in which the content liquid can be discharged from the time when the tab is first opened, it may spill at the approach stage to the inlet of the bottle. Especially for consumers who refill without tilting the bottle, there is a large angle difference between the central axis of the bottle inlet and the pouch spout, which may cause spilling at the beginning of the pour and cause anxiety about the refilling work. Yes. In addition, when the content liquid was refilled about half from the refill pouch and the remaining liquid was temporarily stored in the pouch, the pouch could not be resealed.

  Japanese Patent Laid-Open No. 2004-228561 cuts off the tip of the nozzle provided at the corner of the refill pouch and opens the nozzle. However, since this nozzle is not provided with an opening / closing mechanism, the liquid content spills from the opened nozzle. easy. There is no resealing function for the nozzle.

  In Patent Documents 2 and 3, a positioning groove is provided at the base of the refilling nozzle to stabilize the position and posture of the bottle and the content liquid is refilled safely. However, a nozzle opening / closing mechanism is employed. Not. There is no resealing function for the nozzle.

  Patent Document 4 is a technique for ensuring the opening of a nozzle by providing a nozzle at the corner of a refillable pouch and deforming the pouch by the action of the weight of the pouch content liquid when the tip of the nozzle is cut off. Although there is no structure for arbitrarily opening and closing the nozzle. There is no resealing function for the nozzle.

  This invention was made in view of the circumstances as described above, and liquid leakage does not occur before the nozzle of the pouch is inserted into the inlet of the bottle at the time of refilling. Alternatively, if it is inserted deeply into the bottle inlet, the nozzle spout opens to allow discharge, and when the finger is released from the nozzle or the pouch is removed from the bottle inlet, it is completely sealed again and leaks. It is an object of the present invention to provide a refillable pouch that does not cause any problems and has a simple structure.

Corresponding to this object, the structure of the nozzle part of the refill pouch according to the present invention is such that the wall composed of the two flexible body pieces of the pouch for filling the liquid to be supplied to the bottle is opposed to each other and the peripheral part is sealed. A nozzle portion configured to be sealed at a portion,
A liquid passage formed by a liquid passage forming portion molded so that a base end portion of the two walls communicating with the internal space of the pouch is separated;
An opening / closing portion that is connected to the liquid passage forming portion at the front end side of the liquid passage forming portion, and controls opening / closing of the flow / blocking of the content liquid passing through the liquid passage;
The opening / closing part includes a valve passage that is opened when the content liquid is supplied and communicates with the liquid passage, and the valve passage is closed when the two opposing walls are in close contact with each other and the two walls The opening is made by the formation of a gap between
The pressure part which can make the force of the direction which the said seal part approaches in the said seal part of the said nozzle part was provided.

  The open / close passage of the pouch outlet is closed by the self-blocking phenomenon caused by the close contact of the two walls arranged side by side on the left and right sides of the passage. Since the clogging phenomenon is released and the contents liquid is circulated and shut off, there is no risk of spilling the contents liquid during refilling.

  In particular, when a nozzle with a long pouch is inserted into the bottle, the contact pressure between the bottle and the nozzle can be used as the pressure. Therefore, when the nozzle root is pushed by the inner periphery of the bottle, the self-blocking of the pouch is released and the opening is opened. Thus, the content liquid can be reliably injected into the injection port of the bottle. When the pouch is removed, it will be resealed by self-blocking, so it can be left as it is until the next refill. In the meantime, even if you defeat it, it will not spill.

  The pouch nozzle does not discharge the contents until it is inserted into the bottle, so there is no risk of spilling the contents during refilling. Since the nozzle is long, it will not come off during refilling. Even if the pouch is opened, it will not spill. Moreover, since the pouch is an all-film, low-cost production is possible.

  Hereinafter, details of the present invention will be described with reference to the drawings showing an embodiment.

  1 and 2, 1 is a refillable pouch. The refill pouch 1 is configured in a bag shape by heat-sealing the left and right body pieces 2 and 3 and the bottom piece 4 with a seal 9 at the peripheral portion, and is filled with a content liquid for refill.

  The refill pouch 1 is provided with a body portion 5 and a nozzle portion 6 continuously. The body portion 5 is composed of left and right body pieces 2 and 3 and a bottom piece 4, and the nozzle portion 6 is composed of left and right body pieces 2. And 3.

  The main body part 5 is a part for storing the refilling content liquid, and the nozzle part 6 is a part for pouring the refilling content liquid in the main body part 5 to the outside. A flow guide 7 is formed in the vicinity of the root of the nozzle portion 6 of the main body portion 5. The flow guide 7 is formed in a bowl shape by reforming the left and right body pieces 2 and 3 made of a soft and flexible material by heat treatment or the like, and the flow path for the content liquid is always the main body portion 5 and the nozzle portion. 6 is realized.

  The nozzle part 6 protrudes long from the main body part 5, and when the nozzle part 6 is inserted into the injection port 8 (see FIG. 5) of the bottle 10, the bottle 10, the injection port 8 and the main body unit 5 do not collide with each other. In addition, the nozzle portion 6 can be inserted deeply into the injection port 8, and the spout 11 of the nozzle portion 6 can reach a deep position of the injection port 8. According to the experiment, when the length of the nozzle portion 6 that can be inserted into the inlet 8 of the bottle 10 is 3 mm or more, the position and posture of both the bottle 10 and the refill pouch 1 are stable, and the refilling operation is stable. You can do it.

  The nozzle section 6 has a liquid passage forming section 12 at the proximal end near the main body section 5 in the flow direction X of the content liquid, and an opening / closing section 13 at the distal end near the spout 11. The liquid passage forming part 12 and the opening / closing part 13 are connected to form the nozzle part 6, and a tab 23 is provided at the tip of the nozzle part 6. The liquid passage forming portion 12 is a portion constituting the liquid passage 16, and as shown in FIG. 4, the liquid passage forming portion 12 is constituted by the left body piece 2 and the right body piece 3 that overlap each other, and in the flow direction X. The upper end portion 14 and the lower end portion 15 in the vertical vertical direction Y are sealed as if they were one body piece by heat sealing or the like at the seal portion 9, while the intermediate portion in the vertical direction Y is two cylinders The pieces 2 and 3 are molded and separated in the left and right Z direction to form a liquid passage 16 between the left and right barrel pieces 2 and 3 in the flow direction X of the content liquid.

  The opening / closing part 13 constitutes a valve passage 17 that can be opened and closed. The valve passage 17 communicates with the liquid passage 16. As shown in FIG. 3, the valve passage 17 is composed of the left body piece 2 and the right body piece 3 which are in close contact with each other, and the upper end 18 and the lower end 21 in the vertical direction Y perpendicular to the flow direction X are sealed. It is sealed as if it were a single piece by heat sealing or the like of the portion 9, and the upper and lower edges are constituted by a pressing portion 25 that can apply a load in the vertical direction. In the middle portion 22 in the vertical direction Y, the two body pieces 2 and 3 are simply in close contact, but are not sealed. Therefore, if the left and right body pieces 2 and 3 are pressed in the vertical direction Y in the intermediate portion 22, the left and right body pieces 2 and 3 are bent and displaced in opposite directions (left and right direction Z perpendicular to the up and down direction). A passage through which the liquid can flow, that is, an open valve passage 17 is formed. The tip of the opening / closing part 13 is closed by a tab 23, and a notch 24 is formed in the opening / closing part 13 so that the cut portion is placed on the valve passage 17.

  When the content liquid is to be refilled into the bottle 10 from the refill pouch 1 configured in this way, the cut end face is obtained by cutting the tab 23 of the refill pouch 1 across the valve passage 17 by the notch 24 and removing it. The spout 11 of the opening / closing part 13 is formed at the top. Next, as shown in FIG. 5, the nozzle 11 of the refillable pouch 1 is inserted into the inlet 8 of the bottle 10 from the tip 26 where the spout 11 is present. Since the nozzle portion 6 is tapered, when the nozzle portion 6 is sufficiently inserted into the injection port 8 having a circular cross section of the bottle 10, the inner surface of the tip portion 27 of the bottle 10 is shown in FIG. When the pressing portion 25 of the nozzle portion 6 comes into contact with and is further inserted, the pressing portion 25 receives a pressing force F due to the contact from the front end portion 27 of the bottle 10 in the vertical direction as shown in FIG. When the opening / closing part 13 receives a pressing force from the vertical direction Y, the left and right body pieces 2, 3 that are close to the flow path 17 by being moved closer to the flow center open in the left-right direction Z, and the valve path 17 Is opened and communicates with the liquid passage 16. The liquid content in the refill pouch 1 is injected into the bottle 10 through the open and communicated liquid passage 16 and the valve passage 17, and refilling is performed.

  When the refilling of the required amount is completed, the nozzle 6 is pulled out from the inlet 8. When the nozzle 6 moves away from the injection port 8, the pressing force F that has moved the opening and closing portion 13 disappears, and the left and right barrel pieces 2 and 3 return to their original positions while causing the residual liquid in the valve passage 17 to flow out. The left and right body pieces 2 and 3 are brought into close contact with each other, and the valve passage 17 is closed again and resealed.

  The refill pouch 1 of the present invention can be inserted deeply into the bottle inlet by lengthening the nozzle, and even if the refill pouch 1 sways during the refill operation, there is no risk of spilling the liquid from the bottle inlet. . In addition, since the start of injection starts by releasing the self-blocking action due to the contact pressure after the nozzle is fully inserted into the bottle, there is no spillage of the content liquid outside the bottle. On the other hand, when the nozzle is pulled out of the bottle, the valve passage 17 is closed by the recovery of the self-blocking function of the valve passage 17 due to the disappearance of the pressing force. In this way, since the valve passage 17 is automatically opened and closed at a desirable time, the refilling operation is very easy. In addition, since it is only necessary to close the left and right body pieces without sealing in order to realize the valve passage 17, no special member is required, and it can be formed of an all film, so that low-cost production is possible.

Front explanatory drawing of a refillable pouch. Side surface explanatory drawing of a refillable pouch. The AA part expanded sectional view in FIG. The BB part expanded sectional view in FIG. Explanatory sectional explanatory drawing which shows the relationship between the bottle and the refilling pouch in refilling operation. Explanatory cross-sectional explanatory drawing which shows the relationship between the liquid channel | path and valve channel | path in refilling operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refillable pouch 2 Left trunk piece 3 Right trunk piece 4 Bottom piece 5 Main body part 6 Nozzle part 7 Flow guide 8 Inlet 9 Seal part 10 Bottle 11 Outlet 12 Liquid passage formation part 13 Opening / closing part 14 Upper end part 15 Lower end part 16 Liquid passage 17 valve passage 18 upper end portion 21 lower end portion 22 intermediate portion 23 tab 24 notch notch 25 pressing portion 26 tip 27 tip portion

Claims (2)

A nozzle portion configured by two walls of a flexible body piece of a pouch filled with a content liquid to be supplied to a bottle facing each other and sealed by a peripheral seal portion ,
A liquid passage formed by a liquid passage forming portion molded so that a base end portion of the two walls communicating with the internal space of the pouch is separated ;
Has a closing portion for controlling opening and closing the flow-blocking of the content liquid through the liquid passage is continuously provided in the liquid path forming portion on the distal end side of the liquid path forming portion,
The opening / closing portion includes a valve passage that is opened when the content liquid is supplied and communicates with the liquid passage, and the valve passage is closed when the two opposing walls are in close contact with each other, and The opening is made by creating a gap between the two walls;
The structure of the nozzle part of the refill pouch characterized by providing the press part which can make the force of the direction which the said seal part approaches to the said seal part of the said nozzle part.   The structure of the nozzle part of the refill pouch according to claim 1, wherein the pressing portion is configured to receive the force by contacting the bottle.

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