JP6498093B2 - Foam ejection container - Google Patents

Description

  The present invention relates to a foam ejection container that squeezes a body portion of a container body to mix a liquid content contained in the container body with air and eject the foam from a nozzle.

  From the viewpoint of simplifying use by omitting the foaming operation as a container for storing liquids such as shampoos, body soaps, hand soaps, facial cleansers, mouthwashes, etc. A foam ejection container is often used in which the content liquid contained in the container is mixed with air and ejected in a foam form from a nozzle.

  For example, in Patent Document 1, a mixing chamber that mixes the content liquid with air is provided in the discharge flow path of the content liquid, and a foam member made of, for example, a mesh is incorporated downstream of the mixing chamber, and the body portion of the container body is attached. A foam ejection container is described in which a foaming member is allowed to pass through a foaming member while being squeezed so as to be mixed with air and ejected from a nozzle in the form of foam.

  Such a foam ejection container is generally configured to squeeze the trunk while the nozzle is in an upright posture with respect to the container body, and eject the content liquid from the nozzle in the form of foam. is there. Therefore, a suction pipe extending to the bottom of the container body is connected to the mixing chamber, and the content liquid is sucked from the bottom of the container body toward the mixing chamber via this pipe. Further, usually, a bottom-up portion is provided at the center portion in order to form a heel portion serving as a seating surface on the outer peripheral surface of the bottom portion of the container body. Therefore, the pipe is bent so that the lower end serving as the suction port is located inside the annular recess. With such a configuration, the content liquid can be sucked from the annular recess that is the deepest part of the container body toward the mixing chamber, and the remaining amount of the content liquid remaining in the container body can be reduced.

JP 2014-46938 A

  In the above conventional bubble ejection container, when the container is turned sideways or upside down when not in use or the like, the content liquid in the container body may leak from the nozzle. Therefore, in order to prevent the liquid content from leaking out of the nozzle even when the container is turned sideways or upside down, the flow path between the nozzle and the container body can be closed when the nozzle head is not used by rotating the nozzle head. It is conceivable to have a configuration. Further, in such a configuration, when the connection member for connecting the pipe to the nozzle head is fitted and fixed to the nozzle head, the connection member is connected to the connection member as the nozzle head rotates. The lower end of the pipe moves along the bottom of the container body along an arcuate locus centering on the rotation axis of the nozzle head.

  On the other hand, when a flat container having a flat cross section is used as the container main body used for the foam ejection container having the above-described configuration, the nozzle head has a nozzle main body in order to facilitate discharge of the content liquid from the nozzle. It is configured to rotate in a range of 90 degrees between the closed position facing the major axis direction and the open position facing the minor axis direction.

  However, in such a configuration, even if the lower end of the pipe is positioned inside the annular recess when the nozzle head is in the open position that opens the flow path, the nozzle head is moved 90 degrees from the open position toward the closed position. When it is turned, the lower end of the pipe cannot move along the annular recess extending in a flat shape, and rides on the bottom raising portion of the bottom of the container body. For this reason, when not in use, the pipe is always in contact with the raised portion, so that a load is always applied to the fitting portion of the connecting member to which the pipe is connected to the nozzle head, and the fitting of the connecting member with the nozzle head is caused by the load. There is a problem that deformation or breakage of the joint portion may occur, or in some cases, the pipe may be detached from the nozzle head together with the connection member, resulting in defective ejection of the content liquid or liquid leakage.

  An object of the present invention is to solve such a point, and the object is to minimize the remaining amount of content liquid remaining in the container body even when the container body is a flat container. A foam ejection container capable of preventing the occurrence of defective liquid ejection or liquid leakage due to a constant load applied to the fitting portion of the connecting member to which the pipe is connected to the nozzle head. It is to provide.

The foam ejection container of the present invention has a mouth, a body that is flexible and has a flat cross section and is continuous with the mouth, and a bottom that closes the lower end of the body. A container main body having a content liquid storage space therein, a distribution port for delivering the content liquid, a mounting cap attached to the mouth of the container main body, a nozzle connected to the distribution port, and an opening / closing lid portion A nozzle head that is mounted on the mounting cap by screw coupling, and the opening / closing lid portion is rotatable between a closed position that closes the flow port and an open position that opens the flow port, and A partition member having an air introduction hole and a liquid introduction hole which have a mixing chamber connected to the circulation port inside and connect the mixing chamber to the accommodation space, and is fitted and fixed to the nozzle head in a fitting portion; And at one end said A pipe connected to the introduction hole and having the other end extending to the bottom of the container body, and forming an annular recess extending along the outer peripheral edge of the bottom in the housing space at the bottom of the container body A bottom raised portion is provided, and the other end of the pipe is disposed inside the annular recess when the nozzle head is in an open position or a closed position,
The bottom raised portion is provided with a notch recess that extends along the movement locus of the other end of the pipe when the nozzle head rotates from the open position to the closed position or from the closed position to the open position. It is characterized by being.

  According to the present invention, in the above configuration, the notch recess is formed in an arc shape centering on the rotation center axis of the nozzle head, and both ends in the circumferential direction of the notch recess are connected to the annular recess, so that the bottom raised portion Is preferably divided by the notch recess.

  According to the present invention, in the above-described configuration, it is preferable that a pair of the cutout recesses disposed to face each other in the major axis direction is provided in the bottom raised portion.

  In the above-described configuration, the present invention may be configured such that the nozzle head rotates 90 degrees between the closed position and the open position.

According to the present invention, in the above configuration, a cylindrical passage is formed between the mounting cap and the partition member, and is connected to the return flow path connecting the outlet to the housing space, and is fixed to the outer peripheral surface of the partition member. A holding portion and an annular and film-like shape that extends radially outward from the outer peripheral surface of the holding portion, and contacts the inner surface of the mounting cap at the outer periphery when the nozzle head is in the open position, and the nozzle head is closed. And a check valve provided with a seal film portion that is separated from the inner surface when positioned.

  According to the present invention, even if the nozzle head is rotated, the pipe is always disposed in the annular recess or the notch recess without contacting the bottom raised portion, so that the content liquid is sucked from the deepest portion of the container body by the pipe. In this way, the content liquid ejection failure or liquid leakage is caused by constantly applying a load to the fitting portion of the connecting member to which the pipe is connected to the nozzle head while minimizing the remaining content liquid remaining in the container body. And the like can be reliably prevented. Thus, according to the present invention, even when the container body is a flat container, it is caused by deformation or breakage of the connecting portion of the pipe while minimizing the remaining amount of content liquid remaining in the container body. Thus, it is possible to provide a foam ejection container capable of preventing the occurrence of defective ejection of the content liquid, liquid leakage, and the like.

It is sectional drawing in the front view of the state in which the nozzle head was made into the closed position of the foam ejection container which is one Embodiment of this invention. It is sectional drawing which expands and shows the principal part of the foam ejection container shown in FIG. It is a bottom view of the foam ejection container shown in FIG. It is sectional drawing in the side view of the state in which the nozzle head of the foam ejection container shown in FIG. 1 was made into the open position.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  A foam ejection container 1 according to an embodiment of the present invention shown in FIG. 1 is also called a squeeze foamer, and is a liquid cleaning agent or hair styling agent such as a shampoo, body soap, hand soap, facial cleanser, mouthwash. And the like, and the content liquid is ejected in the form of bubbles.

  The foam ejection container 1 includes a container body 10. The container main body 10 has a bottle shape including a cylindrical mouth portion 11 having an open top, a cylindrical trunk portion 12 connected to the mouth portion 11, and a bottom portion 13 closing the lower end of the trunk portion 12. The interior is a storage space S for storing the content liquid. The container body 10 is made of a synthetic resin, and its body part 12 has flexibility. By squeezing the body part 12, the accommodation space S is reduced, and the inside of the container body 10 is formed. It can be pressurized.

  As can be seen from FIG. 3, the container body 10 is configured as a flat container in which the cross section of the body 12 is flat. More specifically, each of the body portions 12 is formed in a shape that slightly curves in a slightly convex shape, and a pair of front walls 12a that are arranged to face each other along the minor axis direction, and each of the trunk portions 12 is formed flat and has a major axis. It is formed in a flat shape having a pair of side walls 12 b arranged opposite to each other along the direction, and the bottom portion 13 is also formed in a flat shape that matches the shape of the body portion 12.

  As shown in FIG. 2, a mounting cap 20 is mounted on the mouth portion 11 of the container body 10. The mounting cap 20 made of, for example, a synthetic resin has a cylindrical outer peripheral wall 21 that surrounds the mouth portion 11 of the container body 10, and a protruding portion 21 a provided on the inner peripheral surface of the outer peripheral wall 21 is the mouth portion. 11 is fixed to the mouth portion 11 by undercut engagement with a protruding portion 11a provided on the outer peripheral surface. A seal cylinder portion 22 is provided coaxially and integrally on the inner side of the outer peripheral wall 21, and the fitting portion between the mounting cap 20 and the mouth portion 11 is formed by fitting the seal tube portion 22 into the inner peripheral surface of the mouth portion 11. Is sealed to prevent liquid leakage from the portion.

  In the illustrated case, the mounting cap 20 is fixed to the mouth portion 11 of the container body 10 by undercut engagement (plugging), but the mounting cap 20 is screwed to the mouth portion 11 of the container body 10. It can also be set as the structure fixed by.

  A stepped portion 23 extending inward in the radial direction is integrally provided at an upper end portion of the seal cylinder portion 22, and an inner surface facing the lower side in the drawing of the stepped portion 23 is a flat stepped downward step. It becomes the surface 23a.

  A stopper cylinder 24 that extends from the inner periphery toward the upper side in the drawing is integrally provided at the inner periphery of the step portion 23. The stopper cylinder 24 is formed in a cylindrical shape and is arranged coaxially with the outer peripheral wall 21.

  A distribution cylinder part 25 is integrally provided inside the stopper cylinder part 24. The distribution cylinder part 25 is formed in a cylindrical shape coaxial with the stopper cylinder part 24, and is connected to the inner peripheral surface of the stopper cylinder part 24 at the lower end that is enlarged in a flange shape. The inside of the distribution cylinder part 25 is a content liquid distribution port 25 a, and this distribution port 25 a communicates with the port 11 of the container body 10, that is, the accommodation space S. Therefore, the content liquid and air in the storage space S of the container body 10 can flow out of the mounting cap 20 through the circulation port 25a.

  A nozzle head 30 is attached to the attachment cap 20. For example, the nozzle head 30 made of resin has a cylindrical cover portion 31 that surrounds the outer peripheral wall 21 of the mounting cap 20, and a cap portion 32 that continues to the cover portion 31.

  The nozzle head 30 is screwed to the outer peripheral wall 21 of the mounting cap 20 on the inner peripheral surface of the cover portion 31 and is rotatably mounted on the mounting cap 20. More specifically, a male screw portion 21b is provided on the outer peripheral surface of the outer peripheral wall 21 of the mounting cap 20, and a female screw portion 31a provided on the inner peripheral surface of the cover portion 31 of the nozzle head 30 is connected to the male screw portion 21b. Screw connection. With such a configuration, the nozzle head 30 is mounted on the mounting cap 20 by screw connection and is rotatable with respect to the mounting cap 20.

  The rotation range of the nozzle head 30 relative to the mounting cap 20 is restricted to an angle range of 90 degrees by the stopper mechanism 33. The stopper mechanism 33 is provided with, for example, a pair of stopper pieces 24a arranged at an interval of 90 degrees in the circumferential direction on the outer peripheral surface of the stopper cylinder 24, and the cap of the nozzle head 30 is interposed between these stopper pieces 24a. It can be set as the structure which has arrange | positioned the convex piece 32a provided in the part 32. FIG. In this case, when the nozzle head 30 rotates with respect to the mounting cap 20, the convex piece 32 a moves along the circumferential direction between the stopper pieces 24 a, and the nozzle head 30 is closed most tightly with respect to the mounting cap 20. When the position is reached, the convex piece 32a comes into contact with one stopper piece 24a, and further rotation is restricted. On the other hand, when the nozzle head 30 rotates 90 degrees in the loosening direction from the closed position and reaches the open position, the convex piece 32a contacts the other stopper piece 24a and further rotation of the nozzle head 30 is restricted.

  With such a configuration, the nozzle head 30 is 90 degrees between the closed position shown in FIG. 1 and the open position shown in FIG. 4 with respect to the mounting cap 20 around the axis of the mouth 11 of the container body 10. It is freely rotatable in the angle range. Since the nozzle head 30 is mounted on the mounting cap 20 by screw connection, the nozzle head 30 moves up and down with respect to the mounting cap 20 when rotated between the closed position and the open position.

  A nozzle 34 is provided integrally with the nozzle head 30. The nozzle 34 is formed in a cylindrical shape and protrudes from the cap portion 32 toward the side. The nozzle 34 communicates with the flow port 25 a of the mounting cap 20 through the inflow / outflow hole 35. In the illustrated case, the nozzle 34 communicates with the circulation port 25a through a pair of outflow / inflow holes 35, but the number and shape of the outflow / inflow holes 35 can be variously changed.

  When the nozzle head 30 is in the closed position, the nozzle 34 faces in a direction (see FIGS. 1 and 2) along the major axis direction of the body 12 of the container body 10 that is flat, and the nozzle head 30 is in the open position. In some cases, the container body 10 is formed in a flat shape so as to be directed in a direction (see FIG. 4) along the short axis direction of the body 12 of the body 12.

  The nozzle head 30 is integrally provided with a cylindrical opening / closing lid portion 36. The open / close lid portion 36 is formed in a cylindrical shape having an outer diameter corresponding to the inner diameter at the distal end portion of the flow tube portion 25, and is fitted into the flow tube portion 25 to flow when the nozzle head 30 is in the closed position. When the port 25a is closed and the nozzle head 30 is in the open position, the flow port 25a is opened away from the flow port 25a. That is, the nozzle head 30 rotates between a closed position where the opening / closing lid portion 36 closes the circulation port 25a and an open position where the opening / closing lid portion 36 separates above the circulation port 25a and opens the circulation port 25a. It is possible.

  Reference numeral 37 denotes a seal tube portion that is disposed between the stopper tube portion 24 and the flow tube portion 25 and seals the flow path between the flow port 25 a and the nozzle 34.

  A fixed cylinder portion 41 is integrally provided coaxially with the opening / closing lid portion 36 on the inner side portion of the opening / closing lid portion 36 of the nozzle head 30, and a top tube-like fitting provided on the partition member 50 is provided on the fixed cylinder portion 41. The joint 50a is fitted and fixed. In the case shown in the figure, the partition member 50 is made of a synthetic resin and is formed in a cylindrical shape having an upper and lower split structure, and is fitted into the fixed cylinder portion 41 at a fitting portion 50a provided at the upper end of the partition head 50. Is supported at one end. As a result, when the nozzle head 30 rotates between the open position and the closed position, the partition member 50 rotates together with the nozzle head 30 and moves up and down with the nozzle head 30 relative to the mounting cap 20. ing.

  A hole forming portion 51 is integrally provided at the lower end of the partition member 50. In addition, a mixing chamber 52 connected to the circulation port 25a is partitioned in the partition member 50. The hole forming part 51 forms an air introduction hole 53 and a liquid introduction hole 54 on the lower end side of the partition member 50. The air introduction hole 53 allows the mixing chamber 52 to communicate with the accommodation space S (inside the container body 10), so that air inside the accommodation space S can be introduced into the mixing chamber 52. On the other hand, a pipe 55 extending to the bottom 13 of the container body 10 is attached to the hole forming portion 51. The pipe 55 is connected at one end (upper end) to the hole forming portion 51 leaving the air introduction hole 53 and connected to the liquid introduction hole 54, and bent toward the protruding direction of the nozzle 34 at an intermediate portion thereof. The other end (lower end) is disposed at the bottom 13 of the container body 10. The liquid introduction hole 54 allows the mixing chamber 52 to communicate with the accommodation space S at the bottom portion 13 through the pipe 55, and the content liquid accommodated in the accommodation space S can be introduced into the mixing chamber 52.

  The pipe 55 can be made of, for example, a synthetic resin material and have flexibility.

  Inside the partition member 50, a pair of foam members 56 are mounted on the upper side (downstream side) of the mixing chamber 52. As these foaming members 56, for example, those having a structure in which a mesh is fixed to an end face of a ring can be used. In the case shown in the figure, the pair of foam members 56 having such a configuration is fitted and fixed inside the partition member 50 in a posture in which the meshes are directed to the opposite sides. The foaming member 56 is not limited to the structure having the ring and mesh as described above, and may have various configurations such as a sponge or a porous material depending on the type of the content liquid. Things can be used. Also, the number of foam members 56 to be installed can be variously changed according to the type of the content liquid.

  The inside of the partition member 50 on the upper side of the foam member 56 is a discharge flow path 57 that is continuous with the mixing chamber 52. In order to make this discharge flow path 57 communicate with the flow port 25a, the partition member 50 is provided with a discharge hole 58. In other words, the mixing chamber 52 communicates with the circulation port 25 a via the discharge flow channel 57 and the discharge hole 58, and further communicates with the nozzle 34 via the circulation port 25 a and the inflow / outflow hole 35. The number and shape of the discharge holes 58 provided in the partition member 50 can be variously changed.

  A return flow path 60 defined between the inner peripheral surface of the mounting cap 20 and the outer peripheral surface of the partition member 50 is formed between the housing space S of the container body 10 and the nozzle 34, in addition to the discharge flow path 57. Is provided. That is, the circulation port 25 a communicates with the accommodation space S of the container body 10 through the return channel 60.

  A check valve 61 is provided in the return channel 60. The check valve 61 includes a cylindrical holding portion 61a fitted and fixed to the outer peripheral surface of the partition member 50, and an annular and membrane-like sealing film portion 61b extending radially outward from the outer peripheral surface of the holding portion 61a. Have.

  As shown in FIG. 4, when the nozzle head 30 is in the open position, the seal film portion 61b elastically contacts the downward step surface (inner surface) 23a of the mounting cap 20 from the lower side at the outer peripheral edge thereof. In other words, the check valve 61 functions as a check valve when the nozzle head 30 is in the open position, so that air and content liquid are supplied from the storage space S of the container body 10 to the circulation port 25a through the return channel 60. While restricting the flow, it operates so as to allow the flow of air and content liquid from the circulation port 25a to the accommodation space S of the container body 10 through the return flow path 60.

  On the other hand, when the nozzle head 30 is in the closed position, the check valve 61 moves downward with respect to the mounting cap 20 together with the nozzle head 30, and the outer peripheral edge of the seal film portion 61b faces downward as shown in FIG. The check valve 61 is separated from the step surface 23a and does not function. That is, when the nozzle head 30 is in the closed position, the accommodation space S of the container main body 10 is in a state of being communicated with the circulation port 25a through the return channel 60.

  As shown in FIG. 2, the partition member 50 is provided with a support flange 62 projecting radially outward on the lower side of the check valve 61, and the seal cylinder portion 22 is formed on the outer peripheral edge of the support flange 62. Opposing support cylinders 62a are integrally provided. The support flange 62 is provided with a plurality of through holes 62b that constitute a part of the return channel 60.

  As shown in FIG. 3, the bottom portion 13 of the container main body 10 is configured to include a bottom raising portion 70. An annular heel 71 serving as a seating surface of the container body 10 is provided on the outer peripheral edge portion of the bottom 13 on the outside of the container body 10, and as shown in FIGS. In order to form the heel portion 71, the inner portion of the heel portion 71 of the bottom portion 13 is formed to be recessed toward the mouth portion 11 side. An annular recess 72 extending along the outer peripheral edge of the bottom portion 13 is formed in the housing space S of the container body 10 by forming the bottom raised portion 70. The annular recess 72 has a shape corresponding to the heel portion 71 and constitutes the deepest portion farthest from the mouth portion 11 of the container body 10.

  The bottom raised portion 70 is provided with a pair of cutout recesses 73. These notched recesses 73 are each formed in an arc shape centering on the rotation center axis of the nozzle head 30 (the axis center of the container body 10), and are directed toward the long axis direction of the body 12 having a flat shape, that is, They are arranged opposite to each other across the minor axis direction. In addition, the diameter in the outermost periphery part of these notch recessed parts 73 is made substantially the same as the thickness of the short axis direction of the trunk | drum 12. That is, the notch recess 73 is formed in a shape that extends along the movement locus of the lower end of the pipe 55 when the nozzle head 30 rotates in the range of 90 degrees from the open position to the closed position. Each notch recess 73 is formed to have substantially the same depth as the annular recess 72, and is connected to the annular recess 72 at both circumferential ends. Accordingly, the bottom raised portion 70 includes a central portion 70a including the axial center portion of the bottom portion 13 and a pair of side portions disposed on both sides in the longitudinal direction of the body portion 12 with the notched recess 73 interposed therebetween with respect to the central portion 70a. It is divided into portions 70b.

  The annular recess 72 and the notch recess 73 are both formed with a width that is wider than the diameter of the pipe 55.

  As shown in FIGS. 3 and 4, when the nozzle head 30 is in the open position, the lower end of the pipe 55 is shifted in the short axis direction of the flat body 12 with respect to the axis of the bottom 13 (see FIG. 3). In FIG. 3, for convenience, it is arranged inside the annular recess 72 at a point indicated by a two-dot chain line with a symbol A, and does not come into contact with the bottom raised portion 70. In this way, when the nozzle head 30 is in the open position, the lower end of the pipe 55 is disposed inside the annular recess 72, so that the content liquid stored in the storage space S of the container body 10 is transferred by the pipe 55. The remaining amount of the content liquid remaining inside the container body 10 can be minimized by sucking from the deepest portion.

  On the other hand, as shown in FIGS. 1 and 3, when the nozzle head 30 is in the closed position, the lower end of the pipe 55 is shifted in the major axis direction of the flat body 12 with respect to the axis of the bottom 13. (In FIG. 3, for the sake of convenience, it is indicated by a two-dot chain line denoted by reference symbol B) and is disposed inside the notch recess 73 so as not to contact the raised portion 70. Further, when the nozzle head 30 is rotated in the range of 90 degrees from the open position to the closed position, and when the nozzle head 30 is rotated in the range of 90 degrees from the closed position to the open position. The lower end of the pipe 55 moves along an arc-shaped locus centering on the rotation center axis of the nozzle head 30 between the position indicated by A and the position indicated by B in FIG. It moves along the notch recess 73. That is, the notch recess 73 is formed in an arc shape extending along the movement trajectory of the lower end of the pipe 55 when the nozzle head 30 rotates in the range of 90 degrees between the open position and the closed position. When the nozzle head 30 is rotated, the lower end of the pipe 55 can be moved without contacting the bottom raising portion 70.

  Thus, even if the container body 10 is a flat container having the flat body portion 12, the pipe 55 can always be connected to the bottom raised portion 70 provided on the bottom portion 13 by providing the notched recess 73. It can be set as the structure which is not made to contact | abut to the bottom raising part 70 so that it may be located inside the annular recessed part 72 or the notch recessed part 73. FIG. As a result, the fitting portion 50a of the partition member 50 to which the pipe 55 receives a load from the raised bottom portion 70 and the pipe 55 is connected to the nozzle head 30 is deformed or damaged, or the fitting portion of the partition member 50 It is possible to reliably prevent 50a from being detached from the nozzle head 30, that is, the pipe 55 from being separated from the nozzle head 30 together with the partitioning member 50, and to prevent occurrence of defective ejection of liquid, leakage, etc. Can do. In addition, when the nozzle head 30 is in the open position, the lower end of the pipe 55 is positioned inside the annular recess 72, so that the content liquid inside the container body 10 is sucked from the deepest part through the pipe 55. Thus, the remaining amount of the content liquid remaining in the container body 10 can be minimized.

  Next, the usage method of the foam ejection container 1 of such a structure is demonstrated.

  As shown in FIG. 4, by setting the nozzle head 30 to the open position, the opening / closing lid portion 36 is separated above the flow port 25a, the flow port 25a is opened, and the seal film portion 61b of the check valve 61 is removed. The peripheral edge comes into contact with the downward step surface 23a of the mounting cap 20, and the foam ejection container 1 is in a usable state in which the liquid content can be ejected by squeezing the squeeze portion 12. When the nozzle head 30 is in the open position, the nozzle 34 is directed in a direction along the minor axis direction of the flat trunk 12.

  In a state where the nozzle head 30 is in the open position, the foam-like content liquid can be ejected from the nozzle 34 by squeezing the body 12 of the container body 10. That is, when the body portion 12 is squeezed, the content liquid stored in the storage space S of the container body 10 is introduced into the mixing chamber 52 through the pipe 55 and the liquid introduction hole 54 and the air in the container body 10 is changed. The air is introduced into the mixing chamber 52 through the air introduction hole 53, and the content liquid is mixed with air inside the mixing chamber 52 to be foamed and foamed. Further, the foamed content liquid passes through the foaming member 56 and is discharged from the discharge hole 58 to the flow port 25a through the discharge flow path 57 while being further foamed and foamed. Then, the foam-like content liquid discharged to the circulation port 25a reaches the nozzle 34 through the inflow / outflow hole 35, and is ejected to the outside from the opening of the nozzle 34.

  When the squeezing of the body part 12 is released after the content liquid is ejected, the body part 12 is restored to its original shape, so that a negative pressure is generated in the container body 10, and the check valve 61 is opened by this negative pressure. The liquid content remaining inside the nozzle 34 is drawn into the container body 10 through the return channel 60 together with the air (outside air) sucked from the nozzle 34. By such a function, also called a suck back function, the content liquid remaining inside the nozzle 34 after the ejection is drawn into the container body 10 together with the air, and the content liquid drops from the opening of the nozzle 34 to the outside. Can be prevented.

  On the other hand, when not in use, as shown in FIG. 1, the nozzle head 30 is rotated 90 degrees with respect to the mounting cap 20 to the closed position, thereby closing the circulation port 25a by the opening / closing lid portion 36. Thus, the communication between the nozzle 34 and the accommodation space S of the container body 10 is blocked, and the foam ejection container 1 can be made unusable. When the nozzle head 30 is in the closed position, the nozzle 34 is directed in a direction along the long axis direction of the flat trunk 12.

  As described above, in this foam ejection container 1, the body 12 is not used when the foam ejection container 1 is disabled by a simple operation of rotating the nozzle head 30 from the open position to the closed position. Even if it is squeezed unexpectedly, the liquid in the container body 10 can be reliably prevented from leaking outside through the nozzle 34.

  By the way, as described above, the foam ejection container 1 has a configuration in which the flow port 25a can be closed by the opening / closing lid portion 36 by setting the nozzle head 30 to the closed position, and thus the container in a state where the flow port 25a is closed. When the main body 10 is warmed due to an increase in temperature or the like, the internal pressure in the container main body 10 may increase. However, in the foam ejection container 1, the internal pressure can be released to the outside as follows. That is, when the nozzle head 30 is rotated from the open position toward the closed position, the check valve 61 moves downward with respect to the mounting cap 20 together with the nozzle head 30, and the outer peripheral edge of the seal film portion 61b is mounted. The storage space S of the container main body 10 is communicated with the circulation port 25a through the return channel 60 away from the downward step surface 23a of the cap 20. Thus, even when the nozzle head 30 is rotated from the closed position to the open position for use in the state where the internal pressure in the container body 10 is increased, the nozzle head 30 is between the closed position and the open position. In some cases, the opening / closing lid portion 36 is separated above the flow port 25a, the flow port 25a is opened, and the outer peripheral edge of the seal film portion 61b of the check valve 61 is separated from the downward step surface 23a of the mounting cap 20. Thus, the internal pressure in the container body 10 can be released from the return channel 60 to the outside. Therefore, even if the nozzle head 30 is rotated from the closed position toward the open position in the state where the internal pressure in the container body 10 is increased, the internal pressure in the container body 10 is circulated after being released from the return channel 60 to the outside. Since the opening 25a is opened, the internal solution stored in the storage space S is pushed by the internal pressure and is pumped to the nozzle 34 through the mixing chamber 52, the discharge channel 57, the discharge hole 58, and the flow port 25a. It is possible to prevent leakage from the outside.

  On the other hand, when the foam ejection container 1 is put into the use state again, the foam ejection container 1 can be switched to the usable state by a simple operation of simply rotating the nozzle head 30 from the closed position to the open position. it can. At this time, when the nozzle head 30 reaches from the closed position to the open position, the outer peripheral edge of the seal film portion 61b of the check valve 61 comes into contact with the downward step surface 23a of the mounting cap 20, as shown in FIG. The check valve 61 regulates the escape of the pressure in the main body 10 from the return flow path 60 to the outside. Therefore, the content liquid accommodated in the accommodating space S by the compression of the body portion 12 is pumped to the nozzle 34 through the mixing chamber 52, the discharge channel 57, the discharge hole 58, and the circulation port 25a, and is externally foamed from the nozzle 34. Can be ejected.

  Further, in any operation scene of the foam ejection container 1 including the rotation operation of the nozzle head 30, the pipe 55 is always located inside the annular recess 72 or the notch recess 73 and abuts against the bottom raising portion 70. Therefore, as described above, due to the fact that a load is always applied to the fitting portion 50a to the nozzle head 30 of the partition member 50 to which the pipe 55 is connected, the fitting portion 50a is deformed or damaged, It is possible to reliably prevent the pipe 55 from being detached from the nozzle head 30 and causing the ejection failure of the content liquid, liquid leakage, or the like.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above embodiment, the pair of cutout recesses 73 are provided in the bottom raised portion 70 of the bottom portion 13, but one cutout in which the lower end of the pipe 55 is located when the nozzle head 30 is in the closed position. It can also be set as the structure which provided only the recessed part 73. FIG. In the case where the pair of cutout recesses 73 are provided as in the present embodiment, the pipe 55 is not affected even if the direction of the container body 10 relative to the nozzle head 30 is rotated 180 degrees about the axis of the mouth 11. Since the lower end of the nozzle body 30 can be arranged in the cutout recess 73, the assembly operation of the nozzle head 30 to the mouth portion 11 of the container body 10 can be facilitated.

  In the above embodiment, the cutout recess 73 is formed in an arc shape with the rotation center axis of the nozzle head 30 as the center, but the movement locus of the pipe 55 when the nozzle head 30 is rotated. Can be formed into various shapes. In this case, the cutout recess 73 may be integrated with a part of the annular recess 72 on the long axis direction side, and only the center portion 70a of the bottom raised portion 70 may be left and the side portion 70b may not be provided.

  Further, in the above-described embodiment, the return channel 60 and the check valve 61 are provided so that the foam ejection container 1 has a suck back function and an internal pressure release mechanism. A configuration without 61 may also be adopted.

DESCRIPTION OF SYMBOLS 1 Foam ejection container 10 Container body 11 Mouth part 11a Protrusion part 12 Trunk part 12a Front wall 12b Side wall 13 Bottom part 20 Mounting cap 21 Outer peripheral wall 21a Protrusion part 21b Male thread part 22 Seal cylinder part 23 Step part 23a Downward step surface 24 Stopper cylinder Portion 24a Stopper piece 25 Flow tube portion 25a Flow port 30 Nozzle head 31 Cover portion 31a Female thread portion 32 Cap portion 32a Convex piece 33 Stopper mechanism 34 Nozzle 35 Outflow inlet / outlet port 36 Open / close lid portion 37 Seal tube portion 41 Fixed tube portion 50 Partition member 50a fitting part 51 hole forming part 52 mixing chamber 53 air introduction hole 54 liquid introduction hole 55 pipe 56 foaming member 57 discharge flow path 58 discharge hole 60 return flow path 61 check valve 61a holding part 61b seal film part 62b through hole 62 Support flange 62a Support cylinder part 70 Bottom raising part 70a Center part 70b Side part 71 Part 72 annular recess 73 cut-away concave S accommodating space

Claims (5)

A mouth portion, a barrel portion that is flexible and has a flat cross section and is continuous to the mouth portion, and a bottom portion that closes the lower end of the barrel portion, A container body having a storage space;
A mounting cap that is provided on the mouth of the container body, and has a circulation port for delivering the content liquid;
A nozzle connected to the flow port and an open / close lid, and is attached to the mounting cap by screw coupling, between the closed position where the open / close lid closes the flow port and the open position where the flow port is opened. A nozzle head that can be rotated with
A partition member having an air introduction hole and a liquid introduction hole that have a mixing chamber connected to the circulation port and that connects the mixing chamber to the accommodation space, and is fitted and fixed to the nozzle head in a fitting portion;
A pipe attached to the partition member, connected to the liquid introduction hole at one end and extending to the bottom of the container main body at the other end;
The bottom of the container body is provided with a bottom raising portion that forms an annular recess extending along the outer periphery of the bottom in the housing space, and the other end of the pipe when the nozzle head is in the open position or the closed position Is disposed inside the annular recess,
The bottom raised portion is provided with a notch recess that extends along the movement locus of the other end of the pipe when the nozzle head rotates from the open position to the closed position or from the closed position to the open position. A foam ejection container characterized by being made.   The notch recess is formed in an arc shape centering on the rotation center axis of the nozzle head, and both ends in the circumferential direction of the notch recess are connected to the annular recess, whereby the bottom raised portion is divided by the notch recess. The foam ejection container according to claim 1.   The foam ejection container according to claim 2, wherein a pair of the cutout concave portions arranged to face each other in the long axis direction are provided in the bottom raised portion.   The foam ejection container according to claim 1, wherein the nozzle head rotates 90 degrees between the closed position and the open position. A return passage formed between the mounting cap and the partition member and connecting the flow port to the accommodation space;
A cylindrical holding portion fixed to the outer peripheral surface of the partition member, and an annular and film-like shape extending radially outward from the outer peripheral surface of the holding portion, and at the outer peripheral edge when the nozzle head is in the open position The check valve according to any one of claims 1 to 4, further comprising: a check valve provided with a seal film portion that comes into contact with an inner surface of the mounting cap and separates from the inner surface when the nozzle head is in a closed position. Bubble spout container.

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