JP2011225272A - Pouring cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring cap that has a check-valve mechanism, which can be inexpensively and easily arranged, based on the assumption of use in a pouring container for content liquid having a relatively low viscosity.SOLUTION: The pouring cap is used by being assembled and fixed to an opening cylindrical part of a container body. The pouring cap is configured as follows. A discharge hole is penetratingly opened and formed on the front side of the peripheral wall of a closed-top cylindrical cap body. A pouring-path member is arranged from the opening edge of the discharge hole on the outer-peripheral-surface side of the peripheral wall toward the front. The pouring-path member has a check-valve function for preventing outside air from intruding into the inside while it is communicated with the discharge hole. The pouring-path member is configured such that synthetic-resin-made film pieces are stacked on each other and a pouring path is formed between layers. The base end of the pouring path is made to communicate with the discharge hole. The tip of the pouring path is made as a spout so as to allow content liquid to be poured out from the spout through the pouring path. After pouring out the content liquid, the stacked film pieces adhere closely to each other by surface tension of the content liquid remaining between the layers so as to seal between the layers and to allow the check-valve function to be exhibited.

Description

  The present invention relates to a pouring cap provided with a check valve function used by being assembled and fixed to a mouth tube portion of a container body of a pouring container.

  Patent Document 1 describes a dispensing container in which a dispensing cap in which a check valve for preventing outside air from entering the inside of the container is assembled and fixed to a mouth tube portion of a delami bottle. FIG. 11 is a longitudinal sectional view showing an example of this type of dispensing container, and a dispensing cap 121 in which a check valve mechanism 126 using a ball valve is disposed inside the mouth tube portion 102 of the container body 101 which is a delami bottle. Is used for applications that require freshness, such as food seasonings, which are mainly composed of a low-viscosity liquid.

  The container main body 101 is formed by stacking an outer layer 111 and an inner layer 112 in a peelable manner, and includes a mouth tube portion 102, a shoulder portion 103, a trunk portion 104, and a bottom portion 105. Then, the container can be turned upside down or tilted, and the liquid content can be poured out from the discharge port 125 by its own weight by natural fall. As the dispensing proceeds, the inner layer 112 is deformed and deformed, and the intake hole 115 External air is introduced between the outer layer 111 and the inner layer 112. Further, when the container is returned to the upright posture, the ball valve serving as the check valve mechanism 126 can prevent the outside air from entering the container main body, thereby suppressing the deterioration of the quality of the content liquid.

JP 2003-72864 A

  Here, in the dispensing container of the type described above, a check valve mechanism is generally provided in the dispensing cap, but a ball valve or the like is used as in the example shown in FIG. The conventional check valve mechanism has problems such as high cost and low productivity in assembly processing because it is assembled in a small space inside the dispensing cap.

  Therefore, the present invention is intended to provide a pouring cap having a check valve mechanism that can be easily arranged at low cost, assuming use in a pouring container for content liquid having a relatively low viscosity. It is a subject.

Among the means for solving the above technical problems, the main configuration of the present invention is as follows.
In an extraction cap that is used by being assembled and fixed to the mouth tube portion of the container body, and having a cap-shaped cap body,
A discharge hole is formed in a penetrating manner on the front side of the peripheral wall of the cap body,
From the opening edge of the discharge hole on the outer peripheral surface side of the peripheral wall toward the front, the discharge passage member that has a check valve function to prevent outside air from entering the inside and communicates with the discharge hole is disposed,
The pouring path member shall be formed by stacking synthetic resin film pieces to form a pouring path between the layers, the base end of this pouring path is connected to the discharge hole, and the tip is the spout.
It is possible to pour the content liquid from the spout through the pouring path, and after pouring, the stacked film pieces are brought into close contact by the surface tension of the content liquid remaining between the layers, and the layers are sealed, thereby exhibiting a check valve function. With the configuration
It is said.

  In the above configuration or the following description, terms such as “front” and “left and right” are used to clarify the relative disposition direction of the members. The lateral direction with respect to the front and the front is the left-right direction. According to the above configuration, the pouring path member that exhibits the check valve function is to stack the film pieces made of synthetic resin to form the pouring path between the layers, and stack the two film pieces. Folding and stacking a piece of film, stacking and stacking two films formed in a tube shape, etc., and a method using an adhesive at a predetermined portion of the peripheral edge of the stacked film, It can be easily obtained at low cost by bonding and fixing by a heat fusion method, an ultrasonic method or the like.

  The pouring channel member is arranged so as to communicate with the discharge hole on the outer peripheral surface side of the peripheral wall of the cap-shaped cylindrical cap body, and the check valve mechanism is arranged inside the pouring cap. Compared to the above, there are few restrictions on the shape, and it can be easily arranged.

  A film in which the content liquid is stacked on the discharge channel member through the discharge hole of the cap body by a pouring operation such as placing the pouring container in an inclined posture or an inverted posture or squeezing the trunk of the container main body. It flows while pushing out the pouring path formed between the layers of the pieces, and can be poured out from the pouring outlet with the content liquid as an open end.

  In addition, if the dispensing container is returned to an upright position or the squeeze operation is stopped after dispensing the desired amount of the content liquid, the pressure from the content liquid disappears, and the layer between the film pieces on which the pour channel members are stacked is flat. The left and right film pieces are brought into close contact with each other by the surface tension of the content liquid remaining between the layers, and as a result, the interlayer, that is, the discharge path is sealed, the check valve function is exhibited, and the entry of outside air is prevented. It is possible to reliably prevent the occurrence of quality degradation such as oxidation of the content liquid by the outside air. Here, the non-return valve function by the extraction channel member as described above is exhibited particularly in the content mainly composed of a low-viscosity liquid.

  In another configuration of the present invention, in the above main configuration, the film pieces stacked at the tip end portion of the pouring path are bonded to seal the spout port, and the tip portion is cut off during use to open the spout port. It is said to have a configuration.

  According to the above configuration, before using the dispensing container, the sealing performance of the dispensing container can be reliably maintained without using a separate sealing material or the like. Moreover, by providing a notch or a weakening line for cutting at the tip of the pouring path member, the stacked film pieces can be cut out and the pouring port can be easily opened. Of course, even if there is no notch or weakening line for cutting, it is made of a film, so that it can be easily excised using a scissors.

  Still another configuration of the present invention is the above-described main configuration, wherein a pair of upper and lower flange pieces are extended forward in the shape of an outer casing with the upper and lower portions of the discharge hole on the peripheral wall of the cap body as a base end portion, The planar shape is a triangular shape that is reduced in width from the base end toward the tip formed at an acute angle, and the base ends of the pair of film pieces separated left and right at the base end of the extraction channel member The region extending from the left and right outer peripheral surfaces to the left and right side end surfaces of the upper and lower pair of scissors and the distal end of the scissors is sandwiched and fixed to these regions, and the base end portion of the dispensing path is configured to communicate with the discharge holes. It is said.

  The said structure concerns on the specific structure for connecting the base end part of this extraction channel member to a discharge hole. According to the above configuration, a pair of upper and lower flanges having a planar shape with a triangular shape that is reduced in width from the base end toward the tip formed at an acute angle and extending from the upper and lower portions of the discharge hole as the base end are used. By doing so, the base end portion of the pour-out path member can be easily and firmly bonded and fixed to the peripheral wall of the pour-out cap so as to sandwich the region extending from the left and right side end surfaces and the tip end portion of the pair of upper and lower hook pieces. it can.

  In addition, a pair of separated film pieces are stacked at the tip of a pair of upper and lower pair of hook pieces formed at an acute angle, and the upper and lower ends thereof are bonded and fixed, thereby fixing the upper and lower pair of hook pieces and the pair of films. The discharge hole is surrounded by the piece, and the discharge hole can be surely sealed in a liquid-tight manner, so that the communication between the base end portion of the discharge passage member and the discharge hole can be reliably achieved.

  Further, according to the fixing method, the base end portion of the pouring path member is bonded and fixed so as to sandwich the upper and lower triangular pieces of the triangular shape. Even if it exists, the attitude | position of the pouring path member comprised with a film piece can be hold | maintained firmly, and pouring operation can be implemented stably.

  Still another configuration of the present invention is that, in the above configuration, the lengths of the upper and lower hook pieces extending forward are different from each other.

  According to the above configuration, when the length of the upper and lower hook pieces extending forward is different, the adhesion between the pair of film pieces in the vicinity of the tip end portion of the hook piece of the extraction channel member is started. The end can be inclined obliquely forward, the portion closely adhered by the content liquid pouring pressure can be easily pushed open during the content liquid pouring, and the pouring operation can be achieved smoothly.

  Still another configuration of the present invention is the above configuration, wherein the cap body is composed of a mounting cylinder piece assembled to the mouth cylinder portion of the container main body and a top cylindrical discharge cylinder piece having an opening for discharge. The cylinder piece and the discharge cylinder piece are assembled so as to be capable of relative displacement while being closely slidably contacted, and the opening that is established in the mounting cylinder piece and communicates with the discharge hole can be switched between opening and closing by the relative displacement of the mounting cylinder piece and the discharge cylinder piece. It is said.

  According to the above configuration, the communication between the discharge hole and the inside of the container body can be intermittently switched by the relative displacement of the mounting cylinder piece and the discharge cylinder piece, so when the container body is not used, The communication of the liquid is intermittently interrupted, and illegal leakage of the liquid contents due to falls is surely prevented.

  According to still another aspect of the present invention, in the above-described configuration, an opening is formed in the cylindrical wall of the passage cylindrical portion having the top cylindrical shape of the mounting cylindrical piece, and a discharge hole is provided in the cylindrical outer cylindrical portion of the discharge cylindrical piece. The exterior cylinder part is brought into close sliding contact with the passage cylinder part so as to be capable of relative rotational displacement.

  According to the above configuration, the communication between the discharge hole and the inside of the container body can be intermittently switched by the relative rotational displacement of the mounting cylinder piece and the discharge cylinder piece.

  Still another configuration of the present invention is the above-described configuration, wherein an opening is formed at the upper end of a straight tube-shaped passage tube portion of the mounting tube piece, and the discharge tube piece that is in close sliding contact with the passage tube portion so as to be relatively movable up and down. It is said that a seal cylinder piece having a low height that can be closely fitted in the opening is suspended from the lower surface of the top wall.

  According to the said structure, communication with a discharge hole and the inside of a container main body can be switched intermittently by the relative raising / lowering displacement of a mounting cylinder piece and a discharge cylinder piece.

Since the pouring cap of the present invention has the above-described configuration, the following effects can be obtained.
That is, when the content liquid pouring operation is finished, the pressure by the content liquid disappears, the layers of the film pieces on which the pouring path members are stacked return to a flat shape, and further, the surface tension of the content liquid remaining between the layers causes the upper and lower The film pieces adhere to each other, and as a result, the interlayer is sealed, the check valve function is demonstrated, the intrusion of outside air can be prevented, and the occurrence of quality deterioration such as oxidation of the content liquid by the outside air is surely prevented. Can do.

  Moreover, the pouring path member that exhibits the check valve function is to stack the pieces of synthetic resin film to form the pouring path between the layers, and can be obtained at low cost. In addition, this pouring channel member is arranged to communicate with the discharge hole on the outer peripheral surface side of the side wall of the cap-shaped cylindrical cap body, as compared with the case where it is arranged inside the pouring cap. There are few shape restrictions and it can arrange | position easily.

  Since the communication between the discharge hole and the inside of the container body can be switched intermittently, unauthorized leakage of the content liquid can be reliably prevented, and thereby high safety can be obtained.

It is a perspective view which shows one Example of the extraction | pouring cap of this invention. It is a schematic explanatory drawing of the assembly method of the extraction | pouring cap of FIG. It is a half vertical side view which shows the extraction container which assembled | attached and fixed the extraction cap of FIG. 1 to the mouth tube part of the container main body. It is a perspective view which shows a mode that a content liquid is poured out from the extraction container of FIG. (A) is the plane sectional view in alignment with the AA in FIG. 1 of the extraction | pouring cap of FIG. 1, (b) is a front view of the extraction channel member. It is a perspective view which shows the other of the extraction | pouring cap of this invention. It is a longitudinal cross-sectional view which shows the other Example of the extraction | pouring cap of this invention. FIG. 8 is a plan sectional view showing opening and closing of the discharge hole in the embodiment shown in FIG. 7. It is a longitudinal cross-sectional view at the time of a closed state which shows the further another Example of this invention. It is a longitudinal cross-sectional view at the time of an open state of the Example shown in FIG. It is a longitudinal cross-sectional view which shows the example of the extraction container using the conventional type extraction cap.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described along examples with reference to the drawings.
1 and 2 show an embodiment of the dispensing cap of the present invention, FIG. 1 is a perspective view, and FIG. 2 is a schematic explanatory view of an assembling method. 3 and 4 show a dispensing container in which the dispensing cap 1 is assembled and fixed to the mouth tube portion 102 of the container body 101. FIG. 3 is a half longitudinal side view thereof, and FIG. It is a perspective view which shows a mode that it pours out.

  The pouring cap 1 is composed of a cap body 2 having a top and a pouring path member 11 formed by stacking two film pieces 11a and 11b. As will be described later, the cap main body 2 has a mounting cylinder piece 3 that is closely assembled to the mouth cylinder portion 102 of the container main body 101 of the dispensing container by undercutting or screwing, and from the upper end of the mounting cylinder piece 3. The discharge cylinder piece 4 has a top cylindrical shape having a reduced diameter and a top wall 2t. A rectangular discharge hole 5 is formed in a penetrating manner on the front side of the peripheral wall of the discharge cylinder piece 4. .

  A pair of upper and lower collar pieces 6a and 6b are extended in the shape of an outer casing forward with the upper and lower portions of the discharge hole 5 as the base end. The planar shape of these flanges 6a and 6b is a triangular shape that is reduced in width from the base end toward the tip formed at an acute angle, and the upper flange 6a is formed by extending the top wall 2t.

  As shown in the explanatory view of FIG. 2, the pouring path member 11 stacks two film pieces 11a and 11b, adheres and fixes the peripheral portion thereof with an adhesive, and sets the pouring path F between the two layers. To form. More specifically, in this embodiment, the adhesive layer 13 is laminated in a strip shape over the entire peripheral edge of one side of each of the film pieces 11a and 11b, and the base ends of the pair of film pieces 11a and 11b are discharged. The region extending from the left and right outer peripheral surfaces of the side peripheral wall of the cylinder piece 4 to the left and right end surfaces of the upper and lower pair of flange pieces 6a and 6b and the tip is sandwiched and fixed to these regions. And the film piece 11a, 11b is piled up in the tip part formed in the acute angle | corner shape of the collar pieces 6a, 6b, and the extraction channel member 11 is formed so that the peripheral part may be adhere | attached and fixed.

  As described above, by configuring the pouring channel member 11, the discharge hole 5 is surrounded by the pair of upper and lower pair of flange pieces 6a and 6b and the pair of left and right film pieces 11a and 11b to be surely sealed in a liquid-tight manner. In addition, the base end portion of the extraction channel member 11 and the inside of the cap body 2 can be communicated with each other through the discharge hole 5. Further, according to the fixing method of the base end portion of the pouring path member 11, the base end portion of the pouring path member 11 is bonded and fixed so as to sandwich the pair of upper and lower triangular pieces 6a and 6b. The base end portion can firmly hold the pouring path member 11 composed of the film pieces 11a and 11b even when the content liquid as described later is being poured out, so that the pouring operation can be performed. It can be carried out stably.

  Further, the pouring channel member 11 of this embodiment seals the pouring port 18 by adhering and fixing the film pieces 11a and 11b that are stacked at the tip of the pouring channel F. As shown in FIG. The tip is cut off using the notch 15 and the weakening line 16 to open the spout 18.

  Next, a usage mode of the above-described dispensing cap 1 will be described with reference to FIGS. The pouring container shown in FIG. 3 is constructed by assembling and fixing the pouring cap 1 of the above embodiment to the mouth tube portion 102 of the container main body 101 with the mounting tube piece 3, and a low viscosity liquid is mainly used. Ingredients, especially those used for food freshness requirements such as food seasonings, with the container upside down or tilted so that the liquid can be poured out by its own weight under its own weight It is.

  The container body 101 is a delami bottle, and is made of a low-density polyethylene resin and an outer layer 111 that forms an outer shell, and an inner layer 112 made of nylon resin is detachably laminated. The low-density polyethylene resin and the nylon resin are coextruded. It is blow molded and has a mouth tube portion 102, a shoulder portion 103, a cylindrical body portion 104 and a bottom portion 105. Further, an intake hole 115 for introducing external air between the outer layer 111 and the inner layer 112 is formed in the outer layer 111 portion of the mouth tube portion 102.

  When the content liquid is poured out from the pouring container, as shown in FIG. 4, the notch 15 and the weakening line 16 of the pouring path member 11 are used to cut off the tip portion and form the pouring outlet 18. The content liquid L is poured out by its own weight by tilting the pouring container. When the dispensing container is in such an inclined posture, the content liquid passes from the inside of the container body 101 through the inside of the dispensing cap 1 to the proximal end portion of the dispensing channel member 11 through the discharge hole 5 of the discharge cylinder piece 4. Smoothly pours out from the spout 18 together with the volume-reducing deformation function of the inner layer 112 to be described later while flowing between the layers of the discharged and stacked film pieces 11a and 11b, that is, the pour channel F. Can do.

  And after pouring out the desired amount of the content liquid, when the pouring container is returned to the upright posture, the pressure due to the content liquid disappears, and the layers of the stacked film pieces 11a and 11b are stacked in a flat shape. The film pieces 11a and 11b are brought into close contact with each other due to the surface tension of the content liquid remaining between the layers, and the interlayer, that is, the discharge passage F is sealed, thereby exhibiting a check valve function and preventing the outside air from entering. It is possible to reliably prevent the occurrence of quality degradation such as oxidation of the content liquid by the outside air.

  FIG. 5A is a plan sectional view taken along the line AA in FIG. 1, and FIG. 5B is a front view of the pouring channel member 11 (both of them cut off the tip and open the spout 18). As shown above, the hatched film pieces 11a and 11b show the state in which the film pieces 11a and 11b are in close contact with each other and the interlayer is sealed as shown above. The deformation | transformation state at the time of the liquid extraction | pouring, ie, the state where the extraction path F was pushed wide is shown.

  Further, since the inner layer 112 of the container main body 101 is reduced and deformed in a deflated manner by the amount of the content liquid that has been dispensed with the progress of the above-described dispensing operation, the content liquid is dispensed by its own weight due to the inclined posture. Is achieved smoothly. Here, since the outside air is introduced between the outer layer 111 and the inner layer 112 through the intake hole 115 in accordance with the volume reduction deformation of the inner layer 112, the outer layer 111 forming the outer shell can maintain the original shape. .

  Next, FIG. 6 is a perspective view showing another example of the pouring cap of the present invention. The pouring cap 1 is one of the variations of the pouring cap of FIG. 1, and a pair of upper and lower flange pieces 6a, 6b. In FIG. 3, the extending length of the lower collar piece 6b is increased with respect to the upper side. Thus, by extending the extension length of the lower flange piece 6b, the close contact between the pair of film pieces 11a and 11b in the vicinity of the distal end portions of the flange pieces 6a and 6b of the extraction channel member 11 starts. The end can be inclined diagonally downward and forward as shown by the two-dot chain line in the figure, and when the content liquid is poured out, the tightly attached portion can be easily pushed open by the content liquid pouring pressure. The dispensing operation can be achieved smoothly.

  FIGS. 7 to 10 show an embodiment in which the cap body 2 is a combination of the mounting cylinder piece 3 and the discharge cylinder piece 4, and this embodiment shows the mounting cylinder piece 3 and the discharge cylinder in close sliding contact. The discharge hole 5 can be switched so as to be opened and closed by the relative displacement of the piece 4. The embodiment shown in FIGS. 7 and 8 is the embodiment shown in FIGS. Is configured so that the opening and closing of the discharge hole 5 can be switched by relative up and down displacement.

  The mounting cylinder part 3a provided in the mounting cylinder piece 3 is a part that is tightly undercut coupled to the mouth cylinder part 102, and the mounting cylinder piece 3 and the discharge cylinder piece 4 are to be undercut coupled so as to be relatively displaceable. Each has a protrusion 3d and a protrusion 4b.

  In the embodiment shown in FIGS. 7 and 8, the mounting cylinder piece 3 is erected on the upper end of the mounting cylinder part 3a via the inner flange piece, and the cylindrical cylinder cylinder 3b is erected. An opening 3c is formed in a part of the upper end portion of the cylindrical wall 3b, the discharge cylindrical piece 4 is formed, and the discharge hole 5 is formed in the upper end portion of the cylindrical outer cylindrical portion 4a in which the top wall 2t is connected to the upper end. Established, the inner peripheral surface of the exterior cylinder portion 4a is a smooth inner peripheral surface 4e that seals the opening 3c.

  Therefore, in the state of FIG. 8A in which the opening 3c is opposed to the discharge hole 5, the discharge hole 5 is in communication with the container body 101, that is, the “open” state, and the opening 3c is in the discharge hole. In the state of FIG. 8B that does not face 5, the discharge hole 5 is not in communication with the container main body 101, that is, in the “closed” state.

  In the embodiment shown in FIG. 9 and FIG. 10, the mounting cylinder piece 3 is erected on the upper end of the mounting cylinder part 3a with a straight cylindrical passage cylinder part 3b via an inner collar piece, and this passage cylinder part 3b. The upper end of the tube is configured as an opening 3c, and the discharge cylinder piece 4 is connected with the top wall 2t at the upper end of the straight cylindrical outer cylinder part 4a, and is tightly fitted into the opening 3c on the lower surface of the top wall 2t. A seal cylinder piece 4d having a low height is suspended, and an elevating guide surface 4f having an enlarged diameter is provided in the lower half of the inner peripheral surface of the exterior cylinder part 4a. A projecting piece part 3d having a circumferential protrusion piece is provided on the elevating guide surface 4f. The upper half of the inner peripheral surface of the outer cylinder portion 4a is a smooth inner peripheral surface 4e that seals the discharge hole 5.

  Therefore, in the state of FIG. 9 in which the seal cylinder piece 4d is tightly fitted in the opening 3c, the discharge hole 5 is not in communication with the container body 101, that is, in the “closed” state, and the seal cylinder piece 4d. 10 is separated from the opening 3c, the discharge hole 5 is in communication with the container body 101, that is, in the “open” state.

  Note that the vertical protrusion 4c protruding from the outer surface of the discharge cylinder piece 4 is a part that mainly provides a catching part for rotationally displacing the discharge cylinder piece 4 with respect to the installation cylinder piece 3. When assembling the cylinder piece 3 and the discharge cylinder piece 4, it is useful for confirming the directionality of both.

  As mentioned above, although the extraction | pouring cap of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example. For example, the pouring cap of the present invention can be used not only for delamination bottles but also for general squeeze-type container bodies, pouch-like container bodies, and the like. Further, the shape of the pouring path member and the arrangement thereof are not limited to those in the embodiment. For example, the pouring path member can be formed by using a film formed in a tube shape, or the cap main body. It is also possible to arrange a fitting member on the side peripheral surface and mechanically detachably fix the dispensing path member.

  As described above, the pouring cap of the present invention is a pouring channel member in which films are stacked so that the check valve function can be easily achieved at low cost. It can be expected to be widely used as a container for dispensing food seasonings, etc., whose main component is a liquid of viscosity.

DESCRIPTION OF SYMBOLS 1; Pouring cap 2; Cap main body 2t; Top wall 3; Installation cylinder piece 3a; Installation cylinder part 3b; Passage cylinder part 3c; Opening 3d; 4c; vertical protrusion 4d; seal cylinder piece 4e; seal inner peripheral surface 4f; elevating guide surface 5; discharge hole 6a; (upper) flange piece 6b; (lower) flange piece 11; 11b; film piece 13; adhesive layer 15; notch 16; weakening line 18; pouring passage 101; container body 102: mouth tube portion 103; shoulder portion 104; trunk portion 105; bottom portion 111; outer layer 112; 121; pouring cap 125; discharge port 126; check valve mechanism F; pouring path L;

Claims (7)

A pouring cap that is used by being assembled and fixed to a mouth tube portion of a container body, and has a cap-shaped cap body (2), and a discharge hole (5) on the front side of the peripheral wall of the cap body (2) Has a check valve function to prevent outside air from entering the inside forward from the opening edge of the discharge hole (5) on the outer peripheral surface side of the peripheral wall. The pouring path member (11) communicated with the above structure is disposed, and the pouring path member (11) is formed by stacking synthetic resin film pieces to form the pouring path (F) between the layers. The base end of the outlet (F) communicates with the discharge hole (5), and the tip is used as a spout (18). The content liquid can be discharged from the spout (18) through the spout (F). In addition, the film pieces (11a, 11b) that are stacked due to the surface tension of the content liquid remaining between the layers adhere after the pouring. Interlayer is sealed, pouring cap, characterized in that the check valve function is configured to be exerted. The film pieces (11a, 11b) stacked at the tip of the pouring path (F) are bonded to seal the spout (18), and the spout (18) is cut by cutting off the tip at the time of use. The pouring cap according to claim 1, wherein the pouring cap is configured to open. A pair of upper and lower flanges (6a, 6b) are extended forwardly in the shape of an outer casing with the upper and lower portions of the discharge hole (5) on the side peripheral wall of the cap body (2) as the base end, and the flanges (6a , 6b) is a pair of film pieces (a pair of film pieces separated into the left and right at the base end of the extraction channel member (11), and having a triangular shape with a reduced width from the base end toward the tip formed at an acute angle. 11a, 11b) is sandwiched between the left and right outer peripheral surfaces of the peripheral wall and the left and right end surfaces of the pair of upper and lower flanges (6a, 6b) and the distal end of the flanges (6a, 6b). The pouring cap according to claim 1 or 2, wherein the discharging cap (5) is configured to be bonded and fixed to the region so that the base end portion of the pouring passage (F) communicates with the discharge hole (5). The pouring cap according to claim 3, wherein the length of the upper and lower flanges (6a, 6b) extending forward is different. The cap body (2) is composed of a mounting cylinder piece (3) to be assembled to the mouth tube portion of the container body and a top cylindrical discharge cylinder piece (4) having an opening for the discharge hole (5). The cylinder piece (3) and the discharge cylinder piece (4) are assembled so as to be capable of relative displacement while in close contact with each other, and the opening (3c) opened in the mounting cylinder piece (3) and communicating with the discharge hole (5) The dispensing cap according to any one of claims 1 to 4, wherein opening and closing can be switched by relative displacement of the mounting cylinder piece (3) and the discharge cylinder piece (4). An opening (3c) is formed in the cylindrical wall of the top cylindrical cylindrical passage cylinder (3b) of the mounting cylindrical piece (3), and the cylindrical cylindrical outer cylinder (4a) of the discharge cylindrical piece (4) is provided. 6. The pouring cap according to claim 5, wherein a discharge hole (5) is opened and the outer tube portion (4a) is brought into close sliding contact with the passage tube portion (3b) so as to be capable of relative rotational displacement. An opening (3c) is formed at the upper end of the straight tube-shaped passage tube portion (3b) of the mounting tube piece (3), and the discharge tube piece (4) which is in close sliding contact with the passage tube portion (3b) so as to be able to move up and down relatively. The pouring cap according to claim 5, wherein a sealing cylinder piece (4 d) having a low height that can be fitted into the opening (3 c) is suspended from the lower surface of the top wall (2 t) of the above.

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