JP5380255B2 - Discharge cap - Google Patents

Description

  The present invention relates to a discharge cap that is attached to a mouth portion of a container body and discharges contents to the outside.

2. Description of the Related Art Conventionally, in a container in which liquid contents are stored, a container provided with an open / close mechanism using a manual valve body is known in order to prevent the contents from spilling when the container falls (see Patent Document 1). ).
In this container, the discharge port (spout port) and the air hole are simultaneously sealed from the same direction by the urging force of the spring acting in the same direction, and the button using the air hole is pressed against the urging of the spring. In addition, an opening / closing mechanism is provided in which the discharge port and the air hole are simultaneously opened to discharge the contents.

Utility Model Registration No. 3078012

However, the opening / closing mechanism provided in the container is a complicated valve body mechanism that uses the biasing force of the spring member, and there are problems such as a large number of parts and time-consuming manufacturing and inferior mass productivity. There was room for improvement.
In addition, even when the contents are being discharged, it is necessary to perform a manual opening / closing operation such as pressing a button every time, and an opening / closing structure that does not require such an operation has been desired.

  The present invention has been made in view of such circumstances, and its purpose is to facilitate assembly with a simple structure and increase manufacturing efficiency, and to facilitate the contents without performing any special operation. It is providing the discharge cap which can be discharged to.

In order to achieve the above object, the present invention provides the following means.
(1) A discharge cap according to the present invention is a discharge cap attached to a mouth portion of a container body in which contents are accommodated, and has a communication passage attached to the mouth portion and communicating with the inside of the container body. A mounting body having a top, a top-like cylindrical discharge head mounted on the mounting body and having an outflow opening communicating with the communication path formed in the top wall, and the top wall so as to cover the outflow opening from above A film overlaid on the outer peripheral edge of the outflow opening in the radial direction and sealed on the top wall along the circumferential direction, and a lid that is detachably attached to the mounting body and covers the discharge head A body, and the mounting body surrounds the mouth portion from the outside in the radial direction, and has an outer cylinder portion formed with a hinge portion on the outer peripheral surface so as to be openable and closable, and fitted into the mouth portion. And an intermediate tube portion having a longitudinal groove formed on the inner peripheral surface, and the intermediate tube portion. An inner cylinder portion that is disposed radially inward and the inside of which is the communication path, and the discharge head enters between the intermediate cylinder portion and the inner cylinder portion, and is undercut fitted. A non-seal in which the seal is partly released on the outer peripheral edge of the film, and is provided on the outer peripheral surface of the film. A portion is formed, and the non-sealed portion and the top wall portion define a discharge port for discharging the contents discharged from the outflow opening.

  In the discharge cap according to the present invention, when the container body is tilted after removing the lid, the contents accommodated in the container body flow into the outflow opening of the discharge head through the communication path of the mounting body, and the outflow opening Spills out from the top of the discharge head while pushing up the film. Then, the film is pressed and deformed in a direction away from the top wall by its own weight, and swells into a dome shape that protrudes upward. Thereby, the clearance gap between a ceiling wall part and a film becomes a discharge path connected with a discharge outlet. Accordingly, the contents flowing out from the outflow opening can be guided to the discharge port through this discharge path and discharged from the discharge port to the outside.

  When the container body is returned to a posture in which the weight of the contents is not applied to the film after the discharge is completed, the pressing force applied to the film is released, and the film that has been deformed into a dome shape returns to the original state. In close contact with the top wall. Therefore, the outflow opening is closed again by the film and the discharge port is closed. Thereby, the sealing property of a container body is securable.

As described above, according to the discharge cap according to the present invention, since the discharge can be performed by a simple method in which the container body is inclined and the film is deformed by the weight of the contents, the discharge operation can be easily performed without performing a special operation. It is easy to use.
Also, unlike the conventional one using a complicated valve body mechanism using a spring member, it has a simple structure consisting of a mounting body, a discharge head having a film provided on the top wall, and a lid. Easy to assemble, can increase the production efficiency.

In particular, the attachment body and the discharge head are separate members, and the discharge head is attached to the attachment body attached to the mouth. Therefore, even if the ejection head is designed with various variations, the mounting body can be used in common, and the degree of freedom in design can be increased while suppressing high costs.
Further, even if the size of the mouth is changed depending on the type of contents, the ejection head can be used as it is simply by changing the design of the mounting body. Therefore, in this respect, it is easy to use and excellent in convenience.

  Furthermore, when attaching to the mouth, instead of attaching the mounting body to the mouth first, first, the combination of the mounting body and the discharge head, and the combination of the mounting body and the lid, After assembling the discharge cap, it is possible to finally attach the mounting body to the mouth. In this case, since the discharge head is covered with the lid, the attachment to the mouth can be performed without exposing the film to the outside. Accordingly, it is difficult for the film to be scratched or the like during mounting, and the quality of the film can be maintained. In addition, since the mounting operation can be performed while holding the mounting body or the lid without paying special attention to the film, the operation is facilitated, and the working efficiency can be improved.

(2) The discharge cap according to the present invention is the discharge cap according to the present invention, wherein the film is pressed against the top wall portion between the outflow opening and the discharge port on the lid body. A restriction member for restricting deformation is formed.

  In the discharge cap according to the present invention, the restricting member of the lid covering the discharge head presses the film against the top wall at the stage of distribution, sales display, or storage. At this time, it is preferable that the film is pressed against the top wall at least between the outflow opening and the discharge opening. Therefore, the film is prevented from being deformed against the weight of the contents, so that it is possible to prevent a discharge path from being defined due to a gap between the film and the top wall. Therefore, even if the container body is tilted, the flow of contents from the outflow opening toward the discharge port can be blocked, and leakage of the contents can be prevented.

(3) The discharge cap according to the present invention is the discharge cap according to the present invention, wherein a portion of the top wall portion defining the discharge port is provided with a breakable weakened portion (thin wall portion). A cut piece protrudes outward in the radial direction, the film extends so as to cover the upper surface of the cut piece, and an outer peripheral edge thereof is sealed on the cut piece along a circumferential direction. The discharge port is sealed.

In the discharge cap according to the present invention, the discharge port can be unsealed by breaking the weakened portion and separating (separating) the cut piece from the top wall portion. Therefore, thereafter, the contents can be discharged from the discharge port by tilting the container body.
On the other hand, at the stage of distribution or sales display, the cut piece is connected to the portion of the top wall that defines the discharge port, and the discharge port is sealed. Even if it is tilted, the contents are not discharged. Therefore, the leakage of the contents can be surely prevented at the stage before use.

(4) The discharge cap according to the present invention is characterized in that, in the discharge cap according to the present invention, a band having a knob is connected to the cut piece.

  In the discharge cap according to the present invention, when separating the cut piece, the force can be efficiently transmitted to the cut piece through the band while picking the knob, so that the weakened portion can be smoothly broken. Therefore, it becomes easy to separate the cut piece along the weakened portion.

(5) The discharge cap according to the present invention is the discharge cap according to the present invention, wherein the cut piece is pressed against the lid body from above, and the cut piece is bent along the weakened portion toward the mouth side. A pressing member is formed.

  In the discharge cap according to the present invention, at the stage of distribution or sales display, the pressing member of the lid covering the discharge head presses the cut piece from above, and the cut piece is opened along the weakened portion. It is bent to the side. Therefore, even if the size of the lid is small, the cut piece can be folded and accommodated, and the degree of freedom in appearance design is increased. Further, during distribution or sales display, it is difficult for the posture variation such as the cut piece to flutter inside the lid. Therefore, it can suppress that a load is applied to a weakened part by the attitude | position fluctuation | variation, and that a weakened part will be fractured | ruptured by it. Moreover, since the adhesiveness between the film and the weakened portion is enhanced at the bent portion, the sealing performance of the discharge port is more reliably maintained.

(6) The discharge cap according to the present invention is characterized in that, in the discharge cap of the present invention, the top wall portion is inclined so that the discharge port is positioned above the outflow opening. To do.

  In the discharge cap according to the present invention, when the container body is returned to the original state after the discharge of the contents, the contents remaining in the discharge passage naturally flow out using the inclination of the top wall portion. It returns to the side and easily flows into the container body through this outflow opening. Therefore, the contents are less likely to remain in the discharge path, and the deformed film is likely to return to a state where it is securely adhered to the top wall. Therefore, the sealing property of the container body can be enhanced.

(7) In the discharge cap according to the present invention, in the discharge cap of the present invention, the top wall portion is formed in a concave curved surface shape, and the outflow opening is formed in the deepest portion of the top wall portion. It is characterized by.

  In the discharge cap according to the present invention, after the discharge of the contents, when the container body is returned to the original state, the contents remaining in the discharge path are curved in the shape of a concave curved surface. Then, it naturally returns to the outflow opening side and easily flows into the container body through the outflow opening. Therefore, the contents are less likely to remain in the discharge path, and the deformed film is likely to return to a state where it is securely adhered to the top wall. Therefore, the sealing property of the container body can be enhanced.

  According to the discharge cap of the present invention, it is easy to assemble with a simple structure and the manufacturing efficiency can be increased, and the contents can be easily discharged without performing a special operation.

It is sectional drawing which shows embodiment of the discharge cap which concerns on this invention, Comprising: It is sectional drawing of the state which the cover body closed and has covered the discharge head. It is sectional drawing which shows the state which opened the cover body from the state shown in FIG. 1, and exposed the discharge head. FIG. 3 is a perspective view of a part of the ejection head 4 shown in FIG. 2, and is a perspective view in a state where cut pieces are connected. It is a perspective view of the discharge head which made the cut piece isolate | separate from the state shown in FIG. It is the figure which looked at the discharge head and cut piece shown in FIG. 2 from upper direction. FIG. 2 is a perspective view of a discharge head and a cut piece shown in FIG. 1. FIG. 3 is a cross-sectional view illustrating a state in which the contents are discharged by tilting the container body after separating the cut pieces from the state illustrated in FIG. 2. It is sectional drawing which shows the modification of the discharge cap which concerns on this invention, Comprising: It is sectional drawing which shows the state which the cover body opened and the discharge head is exposed. It is the figure which looked at the discharge head and cut piece shown in FIG. 8 from upper direction.

  Hereinafter, an embodiment of a discharge cap according to the present invention will be described with reference to FIGS. 1 to 9. As shown in FIGS. 1 and 2, the discharge cap 1 of the present embodiment is a cap that is attached to the mouth portion 2 a of the container body 2 in which the liquid content W is accommodated. Body) 3, a discharge head 4, and a lid 5.

FIG. 1 is a cross-sectional view of the discharge cap 1 showing a state in which the lid body 5 is closed and covers the discharge head 4. FIG. 2 is a cross-sectional view illustrating a state in which the lid 5 is opened from the state illustrated in FIG. 1 and the ejection head 4 is exposed.
In addition, a direction orthogonal to the central axis O of the container body 2 is a radial direction, and a direction around the central axis O is a circumferential direction. A direction from the container body 2 toward the lid body 5 along the central axis O is defined as an upper side, and a direction toward the bottom portion (not shown) of the container body 2 is defined as a lower side.

The container body 2 of the present embodiment is a laminated peelable container in which an outer layer and an inner layer are laminated so as to be peelable, and an annular engagement protrusion 2b is formed on the outer peripheral surface of the mouth portion 2a.
The mouth cap 3 is disposed along the inner periphery of the mouth portion 2a and the outer tube portion 10 surrounding the mouth portion 2a of the container body 2 from the outside in the radial direction, and the intermediate tube portion fitted into the mouth portion 2a. 11 and an inner cylinder portion 12 disposed inside the intermediate cylinder portion 11 in the radial direction.
The upper end of the outer tube portion 10 and the upper end of the intermediate tube portion 11 are connected via a first flange portion 13 that is in contact with the open end of the mouth portion 2a, and the lower end of the intermediate tube portion 11 and the inner tube portion 12 are connected to each other. The lower end is connected via the second flange portion 14.

On the inner peripheral surface of the outer cylinder portion 10, an annular claw portion 10a that engages with the lower side of the engaging projection 2b on the mouth portion 2a side is formed. Thus, the mouth cap 3 is attached to the container body 2 by undercut fitting. The claw portions 10a may not be annular, and a plurality of claw portions 10a may be formed at intervals in the circumferential direction.
Further, on the outer peripheral surface on the upper end side of the outer cylinder portion 10, a step portion 10 b is formed in which a lower end of a peripheral wall portion 50 of the lid 5 described later is fitted. Further, on the outer peripheral surface of the outer cylinder portion 10, a hinge portion 15 for connecting the lid 5 so as to be openable and closable is formed below the step portion 10b.

The inner cylinder portion 12 is formed at a position eccentric to the radially outer side from the central axis O, specifically, close to the hinge portion 15, and its own central axis is not coaxial with the central axis O. The inner side of the inner cylinder portion 12 functions as a first communication path (communication path) R1 that communicates with the inside of the container body 2 when the mouth cap 3 is attached.
A gap between the intermediate cylinder part 11 and the inner cylinder part 12 is a gap into which a cylinder part 20 of the discharge head 4 described later enters. An annular engagement protrusion 12a is formed on the outer peripheral surface of the inner cylinder portion 12 so as to protrude into the gap. Further, on the inner peripheral surface of the intermediate cylinder portion 11 located on the opposite side of the hinge portion 15 across the central axis O, vertical grooves 11a into which the vertical ribs 23 formed on the ejection head 4 enter are along the central axis O. Is formed.

  The discharge head 4 is a member formed in a cylindrical shape, and enters the gap between the intermediate cylinder portion 11 and the inner cylinder portion 12 of the mouth cap 3 to surround the inner cylinder portion 12 from the outside in the radial direction. The cylindrical portion 20 is disposed along the inner periphery of the inner cylindrical portion 12, and is inserted into the inner cylindrical portion 12, and the top of the cylindrical portion 20 and the upper end of the inserted cylindrical portion 21 are continuously provided. And a wall portion 22.

  An annular claw portion 20 a that engages with the lower side of the engagement protrusion 12 a on the mouth cap 3 side is formed on the inner peripheral surface of the cylindrical portion 20. Thereby, the ejection head 4 is attached to the mouth cap 3 by undercut fitting. The claw portions 20a may not be annular, and a plurality of claw portions 20a may be formed at intervals in the circumferential direction.

Further, on the outer peripheral surface of the cylindrical portion 20 located on the opposite side of the hinge portion 15 across the central axis O, as shown in FIGS. 3 and 4, vertical ribs projecting radially outward along the central axis O. 23 is formed. 3 is a perspective view of a part of the ejection head 4 shown in FIG. 2, and is a perspective view of the ejection head 4 in a state where the cut pieces 30 are connected. FIG. 4 is a perspective view of the ejection head 4 in which the cut pieces 30 are separated from the state shown in FIG.
As shown in FIGS. 1 and 2, the ejection head 4 is mounted such that the vertical ribs 23 enter the vertical grooves 11 a on the mouth cap 3 side. Therefore, the ejection head 4 is combined with the mouth cap 3 in a state of being positioned in the circumferential direction. Therefore, a discharge port 42 to be described later is designed to face the opposite side of the hinge portion 15 with the central axis O interposed therebetween.

  Moreover, between the cylinder part 20 and the insertion cylinder part 21, the rib board 24 which connects both is formed at intervals in the circumferential direction. Thereby, the rigidity reinforcement between the cylinder part 20 and the insertion cylinder part 21 is achieved. In addition, the rib plate 24 is formed so that the lower end is in contact with the open end of the inner cylinder portion 12 of the mouth cap 3 in a state where the ejection head 4 is mounted on the mouth cap 3. Thereby, the ejection head 4 is positioned in the height direction, and the downward movement with respect to the mouth cap 3 is restricted.

  The fitting cylinder part 21 is fitted in the inner cylinder part 12 of the mouth cap 3, and the inside functions as a second communication path R2 communicating with the first communication path R1. And the outflow opening 25 connected to this 2nd communicating path R2 is formed in the top wall part 22. As shown in FIG. Thereby, when the container body 2 is tilted, the contents W can be allowed to flow out from the outflow opening 25 onto the top wall portion 22 via the first communication path R1 and the second communication path R2.

By the way, the top wall portion 22 of the present embodiment is formed in a concave curved surface shape and is formed so as to be inclined with respect to the central axis O.
Specifically, first, as shown in FIG. 4, the top wall portion 22 is formed so as to close the upper end of the cylindrical portion 20 and covers the vertical rib 23 on the side where the vertical rib 23 is formed. Thus, it is formed so as to protrude outward in the radial direction from the cylindrical portion 20. Hereinafter, the protruding side is referred to as a distal end portion 22a of the top wall portion 22, and the opposite side (hinge portion 15 side) of the distal end portion 22a across the central axis O is referred to as a proximal end portion 22b.

  As shown in FIGS. 1 and 2, the top wall portion 22 has a distance along the central axis O from the opening end of the mouth portion 2 a so that the distal end portion 22 a is separated from the proximal end portion 22 b. Inclined. That is, the tip portion 22a is inclined so as to be positioned above the base end portion 22b. Further, as shown in FIG. 4, the top wall portion 22 is directed from the outside to the inside along the inclination direction L1 connecting the distal end portion 22a and the base end portion 22b and the orthogonal direction L2 orthogonal to the central axis O. Therefore, it is formed in a concave curved surface shape so as to become gradually deeper. The outflow opening 25 is formed so as to be located at the deepest portion of the top wall portion 22.

Further, as shown in FIGS. 1 to 3, a cut piece 30 is connected to the discharge head 4 of the present embodiment via a weakening portion 31 that can be broken with respect to the top wall portion 22.
Specifically, the cut piece 30 is provided so as to project radially outward from the distal end portion 22a, which is a portion defining a discharge port 42 to be described later, of the top wall portion 22 through the weakening portion 31. It is connected. The weakened portion 31 is a thin portion with a notch formed on the lower side, and the cut piece 30 is operated to twist or pull the cut piece 30 upward or downward as shown in FIG. As shown, it can be easily broken. 5 is a view of the ejection head 4 and the cut piece 30 shown in FIG. 2 as viewed from above.

  Moreover, the other end of the band 35 having a knob 35a formed on one end thereof is connected to the cut piece 30. Therefore, the band 35 can be used to efficiently transmit force to the cut piece 30, and the weakened portion 31 can be smoothly broken to separate the cut piece 30 from the top wall portion 22. ing.

As shown in FIG. 3, a film (sheet) 40 is overlaid on the top wall portion 22 of the ejection head 4 thus configured so as to cover the outflow opening 25. This film 40 is a film formed from a material that is hard to tear and has elasticity, and covers the entire top wall portion 22. Moreover, the film 40 has a size that extends not only on the top wall portion 22 but also on the cut piece 30 side and covers the entire upper surface of the cut piece 30 before separation.
In addition, as the said film 40, although a general film which is hard to tear can also be used, it is preferable to use the film which has a stretching property.

By the way, in the stage before separating the cut piece 30 from the top wall portion 22, the outer peripheral edge portion of the film 40 positioned radially outside the outflow opening 25 extends along the circumferential direction in the top wall portion 22 and the cut piece 30. Are respectively sealed (adhered) to the upper surface (shaded area S shown in FIG. 4). As a sealing method at this time, various methods such as an adhesive and thermocompression bonding (fusing, welding, etc.) may be employed.
The film 40 separates the cut piece 30 from the top wall portion 22 and breaks. When attention is paid to the top wall part 22 after separation, as shown in FIG. 4, a part of the outer peripheral edge part of the film 40 is a non-seal part 41 in which the seal is partially released. The non-seal portion 41 is formed at a broken portion of the film 40.
In the present embodiment, a non-seal portion 41 is formed at the distal end portion 22 a of the top wall portion 22. The non-seal part 41 and the top wall part 22 define a discharge port 42 through which the content W flowing out from the outflow opening 25 is discharged.

That is, in this embodiment, before the cut piece 30 is separated from the top wall portion 22, as shown in FIG. 5, the film 40 whose outer peripheral edge portion is sealed along the circumferential direction on the cut piece 30. The discharge port 42 is sealed. Then, by separating the cut piece 30 from the top wall portion 22, the film 40 sealed on the cut piece 30 is broken along with the separation, and the discharge port 42 is formed on the top wall portion 22 as shown in FIG. It appears at the tip 22a.
Further, as described above, the top wall portion 22 is inclined so that the distal end portion 22a is located above the base end portion 22b, and therefore the discharge port 42 is located above the outflow opening 25. It is supposed to be.

As shown in FIGS. 1 and 2, the lid body 5 is a member that is detachably attached to the mouth cap 3 and covers the ejection head 4. The lid body 5 includes a peripheral wall portion 50 and a top wall portion 51. It is formed in a shape.
The lid body 5 of the present embodiment has the mouth cap 3 and the peripheral wall portion 50 connected to each other via the hinge portion 15, and is attached to the mouth cap 3 by opening and closing around the hinge portion 15. It has become.
In addition, when the peripheral wall part 50 fits into the step part 10b of the mouth part cap 3, the cover body 5 is stably attached to the mouth part cap 3 without rattling or the like.

  Further, in a state where the lid 5 is attached to the mouth cap 3, the opposite peripheral wall portion 50 to which the hinge portion 15 is connected across the central axis O protrudes outward in the radial direction. A flange portion 50a is formed, and the lid body 5 can be easily opened and closed (in particular, an opening operation) by using the flange portion 50a. Further, a cylindrical regulating member 52 is formed inside the top wall portion 51 so as to protrude downward. The restricting member 52 plays a role of pressing the film 40 against the top wall portion 22 so as to surround the outflow opening 25 from the outside in the radial direction when the lid 5 is attached to the mouth cap 3.

  Under the present circumstances, the lower end part of the control member 52 is curving according to the concave curved surface of the top wall part 22, and it is designed so that the film 40 may be pinched | interposed to the top wall part 22 over the perimeter without a clearance gap. . In particular, since the film 40 is pressed against the top wall portion 22 between the outflow opening 25 and the discharge port 42 by the restriction member 52, the flow of the contents W from the outflow opening 25 toward the discharge port 42 can be blocked. It is like that.

Further, as shown in FIGS. 1 and 5, when the lid 5 is attached to the mouth cap 3, the cut piece 30 is pressed from above, and the cut piece 30 is opened along the weakened portion 31. A pressing member 53 that is pushed and bent toward the portion 2a is formed.
The pressing member 53 of the present embodiment is a plate piece formed so as to be connected to the inner surface of the peripheral wall portion 50 on the side of the flange portion 50a and the lower surface of the top wall portion 51, and is spaced apart in the orthogonal direction L2. Three are formed in parallel. As a result, the entire cut piece 30 can be uniformly pressed from above and bent toward the mouth 2a.

  As shown in FIG. 6, the film 40 is bent as the cut piece 30 is bent, but the cut piece 30 and the film 40 are smoothly bent because of the stretchable film 40. Therefore, the film 40 is not easily torn by this bending or peeled off from the top wall portion 22. Further, as the cut piece 30 is bent, a part of the band 35 is also bent. FIG. 6 is a perspective view of the ejection head 4 and the cut piece 30 shown in FIG.

Next, the case where the contents W are discharged using the discharge cap 1 configured as described above will be described.
First, at the stage of distribution or sales display, as shown in FIG. 1, the lid 5 is attached to the mouth cap 3 so as to cover the discharge head 4, and the cut piece 30 is pressed by the pressing member 53. And is bent to the mouth 2a side.

  From this state, first, the lid 5 is rotated around the hinge portion 15 via the flange portion 50a to be in the open state. As a result, as shown in FIG. 2, the ejection head 4 is exposed, and the cutout piece 30 and a part of the band 35 that are bent are elastically restored. Next, as shown in FIG. 5, the weakened portion 31 is broken by pulling the knob 35 a of the band 35 and separated from the top wall portion 22. Thereby, it will be in the state shown in FIG. 4, and the discharge port 42 can be unsealed.

  Thereafter, as shown in FIG. 7, the container body 2 is tilted so that the front end portion 22 a of the top wall portion 22 is on the lower side. Then, the contents W accommodated in the container body 2 flow into the first communication path R1 of the mouth cap 3 and the second communication path R2 of the ejection head 4, and the film 40 is placed on the top wall portion 22 from the outflow opening 25. It flows out while pushing up. Then, the film 40 is pressed in a direction away from the top wall portion 22 due to the weight of the content W that has flowed out, and reversely deformed, and swells in a dome shape protruding upward. As a result, a gap between the top wall portion 22 and the film 40 becomes a discharge path R3 that connects to the discharge port 42. Accordingly, the contents W flowing out from the outflow opening 25 can be guided to the discharge port 42 through the discharge path R3 and discharged from the discharge port 42 to the outside.

  Further, when the container body 2 is returned to a posture where the weight of the contents W is not applied to the film 40 after the discharge is finished, the pressing force applied to the film 40 is released, and the film 40 that has been deformed into a dome shape is released. It returns to its original state by reverse deformation and is in close contact with the top wall 22. Therefore, as shown in FIG. 2, the outflow opening 25 is closed again by the film 40 and the discharge port 42 is closed. Thereby, sealing of the container body 2 is securable.

Then, when storing, the lid 5 that has been opened is rotated around the hinge portion 15 and attached to the mouth cap 3 so as to cover the ejection head 4 as shown in FIG. At this time, since the peripheral wall portion 50 of the lid body 5 fits into the step portion 10b of the mouth cap 3, the lid body 5 can be attached without rattling.
By the way, when the lid 5 is closed, the regulating member 52 formed on the top wall portion 51 presses the film 40 against the top wall portion 22. In addition, the film 40 is pressed against the top wall portion 22 between the outflow opening 25 and the discharge port 42. Therefore, since the deformation of the film 40 is restricted against the weight of the contents W, it is possible to prevent a gap from being generated between the film 40 and the top wall portion 22 and forming the discharge path R3. Therefore, even if the container body 2 is tilted, the flow of the content W from the outflow opening 25 toward the discharge port 42 can be blocked, and the leakage of the content W can be prevented.

As described above, according to the discharge cap 1 of the present embodiment, since the container body 2 is tilted and discharge can be performed by a simple method of reversing and deforming the film 40 by the weight of the contents W, a special operation is performed. The discharge operation can be easily performed without any problems and is easy to use.
Further, unlike the conventional one using a complicated valve body mechanism using a spring member, only the mouth cap 3, the discharge head 4 provided with the film 40 on the top wall portion 22, and the lid 5 are provided. Since it is a simple structure, it can be assembled easily and the manufacturing efficiency can be increased.

In particular, the mouth cap 3 and the ejection head 4 are separate members, and the ejection head 4 is attached to the mouth cap 3 attached to the mouth 2a. Therefore, even if the ejection head 4 is designed with various variations, the mouth cap 3 can be used in common, and the degree of design freedom can be increased while suppressing the cost.
Even if the size of the mouth portion 2a is changed depending on the type of the contents W or the like, it is possible to use the ejection head 4 as it is by simply modifying the mouth cap 3. Therefore, in this respect, it is easy to use and excellent in convenience.

Further, when attaching to the mouth portion 2a, the mouth cap 3 is not attached to the mouth portion 2a first, but first, the combination of the mouth cap 3 and the discharge head 4, the mouth cap 3 and the lid After the combination with the body 5 is performed and the discharge cap 1 is assembled, the mouth cap 3 can be finally attached to the mouth 2a.
In this case, since the ejection head 4 is covered with the lid 5, it can be attached to the mouth 2 a without exposing the film 40 to the outside. Therefore, the film 40 is hardly damaged when mounted, and the quality of the film 40 can be maintained. In addition, the mounting operation can be performed while holding the mouth cap 3 or the lid 5 without paying special attention to the film 40, so that the operation becomes easy and the working efficiency can be improved.

Furthermore, according to the discharge cap 1 of this embodiment, the following effects can be obtained.
That is, at the stage of distribution or sales display, the cut piece 30 is connected to the top wall portion 22 and the discharge port 42 is sealed. Therefore, even if the container body 2 is tilted, the contents W Is not discharged. Therefore, the leakage of the contents W can be reliably prevented at the stage before use.
Further, when the cut piece 30 is separated from the top wall portion 22, the force can be efficiently transmitted to the cut piece 30 through the band 35 while picking the knob 35a, so that the weakened portion 31 can be smoothly broken. it can. Therefore, the cut piece 30 can be easily separated along the weakened portion 31.

Furthermore, the top wall portion 22 of the present embodiment is inclined so that the distal end portion 22a is located above the base end portion 22b and the discharge port 42 is located above the outflow opening 25. Therefore, when the container body 2 is returned to its original state after the discharge of the contents W, the contents W remaining in the discharge path R3 naturally use the inclination of the top wall portion 22 to the outflow opening 25 side. The flow easily returns to the inside of the container body 2 through the outflow opening 25.
Moreover, the top wall portion 22 is not only inclined but also formed in a concave curved surface shape, and an outflow opening 25 is formed in the deepest portion. Therefore, also at this point, the contents W remaining in the discharge passage R3 naturally return to the outflow opening 25 side by using the curvature of the top wall portion 22, and easily flow into the container body 2 through the outflow opening 25. .

  Thus, since the content W easily returns naturally to the outflow opening 25 side, the content W hardly remains in the discharge path R3. Therefore, the film 40 that has been inverted and deformed so as to swell in a dome shape is likely to return to a state where the film 40 is securely adhered to the top wall portion 22. Therefore, the sealing property of the container body 2 can be improved.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the said embodiment, although the lamination peeling container was employ | adopted as the container body 2, it is not limited to this. For example, a squeeze-deformable container body may be used, and the contents W may be allowed to flow out from the outflow opening 25 by the pressure during squeeze. Moreover, a general container body (a blow bottle, a pouch etc.) may be sufficient.

  Further, when the mouth cap 3 is attached to the mouth portion 2a, or when the ejection head 4 is attached to the mouth cap 3, it may be configured to be attached by screwing instead of undercut fitting. When the discharge head 4 is screwed to the mouth cap 3, a mechanism for positioning the discharge head 4 in the circumferential direction with respect to the mouth cap 3 is provided so that the discharge port 42 faces the desired direction. Is preferred. As the mechanism, various generally known methods for restricting rotation in the circumferential direction may be employed.

  In the above embodiment, the lid 5 is connected to the mouth cap 3 via the hinge portion 15 and cannot be separated. However, the lid 5 can be separated from the mouth cap 3. I do not care. In other words, the lid 5 may be attached to the mouth cap 3 by screwing or undercut fitting.

In the above embodiment, the top wall 22 of the ejection head 4 is formed so as to be inclined when the container body 2 is erected. However, the top of the top 2 extends along a plane perpendicular to the central axis O. The wall portion 22 may be formed. Moreover, in the said embodiment, although the ceiling wall part 22 of the discharge head 4 was formed so that it might become a concave curved surface shape, you may form the ceiling wall part 22 so that it may become a flat flat surface.
In either case, the same effects can be achieved. In addition, when the top wall portion 22 is formed flat, a stretchable film is adopted. However, when the concave wall shape is used as in the embodiment, the film 40 can be inverted and deformed. Therefore, a general film that does not have elasticity can also be adopted. By adopting a stretchable film, when the container body 2 is tilted, the film 40 can be elastically deformed so as to be separated from the top wall portion 22 by its own weight, and the film 40 is moved upward. The discharge path R3 can be reliably formed in a dome shape that bulges convexly.
In this way, the material of the film 40 is appropriately changed according to the shape of the top wall portion 22, and various deformations such as reverse deformation and elastic deformation are caused by the weight of the contents W, and the discharge path R <b> 3 connected to the discharge port 42. Should be surely defined.

Moreover, in the said embodiment, although it was set as the structure which connected the cutting piece 30 to the front-end | tip part 22a of the top wall part 22 via the weakening part 31, this cutting piece 30 is not essential and does not need to provide. . Even in this case, since the regulating member 52 formed on the lid 5 presses the film 40 against the top wall portion 22, even if the container body 2 is inclined during distribution or sales display, the contents W The flow can be blocked and leakage from the discharge port 42 can be suppressed.
In particular, the airtightness can be secured by pressing at least the space between the outflow opening 25 and the discharge port 42 by the regulating member 52.
Furthermore, since the discharge port 42 can be reliably sealed by providing the cutout piece 30, it is more preferable to improve the sealing performance.

Moreover, in the said embodiment, although it was set as the structure which connected the band 35 which has the knob | pick part 35a to the cut piece 30, you may operate the cut piece 30 directly, without providing the band 35. FIG. However, the provision of the band 35 is more preferable because it allows the force to be transmitted efficiently and the cut pieces 30 to be separated smoothly.
Moreover, in the said embodiment, it was set as the structure which bends the cut piece 30 to the opening 2a side using the pressing member 53 formed in the cover body 5, However, The cutting piece 30 is in a free state without providing the pressing member 53 You can leave it on.

Here, a modified example of the discharge cap 1 in which the cut piece 30 is in a free state without providing the pressing member 53 on the lid 5 will be described with reference to FIGS.
As shown in FIGS. 8 and 9, the lid 5 in the present modification has only the restriction member 52 and is not formed with the pressing member 53. Therefore, the cut piece 30 connected to the distal end portion 22 a of the top wall portion 22 of the ejection head 4 via the weakening portion 31 is not attached to the lid body 5 in a state where the lid body 5 is attached to the mouth cap 3. It is free inside.

By the way, in the case of this modification, the band 35 connected to the cut piece 30 is formed in an elongated shape so that the knob 35a is located on the opposite side of the cut piece 30 across the central axis O. It is connected with the outer peripheral surface of the cylinder part 20 of the discharge head 4 via the connection piece 31a which can be fractured. Therefore, even the long band 35 does not hang down, and an excessive load is not applied to the cut piece 30.
Further, the mouth cap 3 of this modification has no vertical groove 11 a and the inner cylinder portion 12 is formed around the central axis O of the container body 2. Similarly, in the ejection head 4, the fitting cylinder portion 21 is formed around the central axis O.

  Even in such a case, after opening the lid body 5, the cut piece 30 is separated from the top wall portion 22 through the band 35, and then the container body 2 is tilted to discharge the discharge port 42. The contents W can be discharged. In particular, since the band 35 is long, the cut piece 30 can be easily separated.

R1 ... 1st communication path (communication path)
W ... Contents 1 ... Discharge cap 2 ... Container body 3 ... Mouth cap (attachment body)
DESCRIPTION OF SYMBOLS 4 ... Discharge head 5 ... Cover body 22 ... Top wall part of discharge head 25 ... Outflow opening 30 ... Cut piece 31 ... Weakening part 35 ... Band 35a ... Knob part 40 ... Film 41 ... Non-seal part 42 ... Discharge port 52 ... Restriction Member 53 ... Pressing member

Claims (7)

A discharge cap attached to the mouth of a container body in which contents are stored,
A mounting body mounted on the mouth and having a communication path communicating with the interior of the container body;
A top-end cylindrical discharge head mounted on the mounting body and having an outflow opening communicating with the communication path formed on the top wall;
A film that is overlaid on the top wall so as to cover the outflow opening from above, and an outer peripheral edge located radially outside of the outflow opening is sealed to the top wall along the circumferential direction;
A lid that is detachably attached to the mounting body and covers the ejection head,
The mounting body surrounds the mouth portion from the outside in the radial direction, and is fitted into the mouth portion with an outer cylinder portion having a hinge portion that connects the lid body so as to be openable and closable on an outer peripheral surface. An intermediate cylindrical portion having a longitudinal groove formed on the surface, and an inner cylindrical portion that is disposed radially inward of the intermediate cylindrical portion and whose inner side is the communication path,
The discharge head is inserted between the intermediate tube portion and the inner tube portion, and is attached to the attachment body by undercut fitting, and a cylinder in which a longitudinal rib is formed to enter the longitudinal groove on an outer peripheral surface. Part
A non-seal part in which the seal is partially released is formed at the outer peripheral edge of the film, and the contents discharged from the outflow opening are discharged by the non-seal part and the top wall part. A discharge cap characterized by defining a discharge port. The discharge cap according to claim 1, wherein
A discharge cap, wherein the lid is formed with a regulating member that presses the film against the top wall portion between the outflow opening and the discharge port to regulate the deformation of the film. In the discharge cap according to claim 1 or 2,
Of the top wall portion, the portion defining the discharge port is provided with a cut piece protruding outward in the radial direction via a breakable weakening portion,
The film extends so as to cover an upper surface of the cut piece, and an outer peripheral edge thereof is sealed on the cut piece along a circumferential direction to seal the discharge port. Discharge cap. The discharge cap according to claim 3,
A discharge cap, wherein a band having a knob is connected to the cut piece. In the discharge cap according to claim 3 or 4,
The discharge cap according to claim 1, wherein a pressing member is formed on the lid to press the cut piece from above and bend the cut piece to the mouth side along the weakened portion. The discharge cap according to any one of claims 1 to 5,
The discharge cap, wherein the top wall portion is inclined so that the discharge port is positioned above the outflow opening. The discharge cap according to any one of claims 1 to 6,
The ceiling wall is formed in a concave curved surface shape,
The discharge cap, wherein the outflow opening is formed at a deepest portion of the top wall portion.

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