JP6735168B2 - Bubble squirt container - Google Patents

Description

The present invention relates to a foam ejection container.

2. Description of the Related Art Conventionally, there is known a foam ejection container that squeezes (squeezes) the container body to eject the content liquid contained in the container body in a foam shape (see, for example, Patent Document 1). This foam jetting container comprises an elastically deformable container body, a mounting cap mounted on the mouth of the container body and having a flow port for the content liquid formed therein, an opening/closing lid part for opening the flow port so as to be openable, and a flow channel. The nozzle head has a nozzle communicating with the mouth and is mounted on the mounting cap so as to be rotatable about the container axis, and a partition member that partitions the mouth portion and the flow port.

The nozzle head is mounted (screwed) on the mounting cap so as to be movable in the container axial direction with respect to the mounting cap by rotating the mounting cap. That is, the nozzle head is moved between a closed position in which the opening/closing lid section closes the circulation port and an open position in which the opening/closing lid section is separated from the circulation port upward to open the circulation port by rotating the mounting cap. To do.
Further, the partition member has a mixing chamber communicating with the flow port, an air introducing port for supplying the air in the container body to the mixing chamber, and a liquid introducing port for supplying the content liquid in the container body to the mixing chamber. ..

An introduction flow path is formed between the inner surface of the mounting cap and the outer surface of the partition member to connect the flow port and the inside of the container body. The partition member is arranged at a position distant downward from the valve seat surface formed on the mounting cap to open the introduction flow path, and contacts the valve seat surface when the nozzle head is located at the above-mentioned open position. A check valve for closing the introduction flow path is provided.

JP, 2016-101969, A

By the way, in the foam jetting container described above, with the nozzle head in the open position, an unexpectedly large external force is applied downward (toward the mounting cap in the container axial direction) with respect to the nozzle head. In some cases, the nozzle head may be forcibly moved downward with respect to the mounting cap. In this case, for example, the female screw portion formed on the nozzle head and the male screw portion formed on the mounting cap collide with each other and are deformed, which may reduce the operability. Further, for example, when the female screw portion rides on the male screw portion and the engagement between the male screw portion and the female screw portion is displaced, there is a possibility that the nozzle head cannot be rotated with respect to the mounting cap.

Therefore, the present invention has been made in view of the above circumstances, and suppresses the nozzle head from being forcibly moved downward with respect to the mounting cap, and obtains stable operability for a long period of time. It is an object of the present invention to provide a foam ejection container that can be used.

In order to solve the above problems, the present invention proposes the following means.
The foam jetting container according to the present invention contains a content liquid, is elastically deformable, and is attached to an opening of the container body, and a mounting cap is formed with a flow port for circulating the content liquid. When opening and closing lid for closing releasably said circulation port, it can communicate with nozzle before Symbol circulation port, and has a female thread portion screwed to the male screw portion formed on the mounting cap, with respect to the mounting cap with the rotation of the container axis, in the closing lid movable between an open position closed position and the open-close lid for closing the flow port is open the flow port spaced upwardly from said flow port A nozzle head mounted on the mounting cap, a mixing chamber communicating with the flow port, an air inlet for supplying air in the container body to the mixing chamber, and a content liquid in the container body into the mixing chamber. A partition member having a liquid introduction port for supplying and partitioning the mouth portion and the distribution port, and the distribution port and the partition member between the inner surface of the mounting cap and the outer surface of the partition member. An introduction flow path that communicates with the inside of the container body is defined, and at least the flow of air from the inside of the container body to the distribution port through the introduction flow path is regulated, and the inside of the container body that passes through the introduction flow path A check valve for allowing at least an air flow to and from the mounting cap, the engaged cap being engaged with an engaged portion formed on the nozzle head in a state where the nozzle head is located at the open position. An engagement portion is formed that engages from below the mating portion and restricts downward movement of the nozzle head with respect to the mounting cap.

According to this configuration, the engaging portion formed on the mounting cap engages with the engaged portion of the nozzle head from below in a state where the nozzle head is located at the open position, so that the lower portion of the nozzle head with respect to the mounting cap. Movement can be restricted. This prevents the nozzle head from forcibly moving downward with respect to the mounting cap even if a large downward force is applied to the nozzle head when the nozzle head is in the open position. it can. Therefore, it is possible to prevent the threaded portions from being deformed due to the collision of the threaded portions formed on the nozzle head and the mounting cap, or the threaded portions riding on each other in the axial direction of the container from being displaced from each other. .. Thereby, stable operability can be obtained over a long period of time.

In the foam jetting container according to the present invention, the check valve is disposed in any one of the mounting cap and the partition member, and the check valve is rotated around the container axis with respect to the mounting cap of the nozzle head. The nozzle head is arranged so as to be movable in the axial direction of the container, and with the nozzle head in the open position, the valve seat surface formed on the other is releasably abutted to open the introduction flow path. Occluded as much as possible, and in the state where the opening/closing lid is located at the closed position for closing the flow port, the introduction flow path is opened by separating from the valve seat surface, and the engaged portion is the nozzle head. May ride on the engaging portion in the process of shifting to the open position.
According to this configuration, in the process in which the nozzle head moves to the open position, the engaged portion rides on the engaging portion, so that the position of the nozzle head in the container axial direction with respect to the mounting cap in the open position can be stabilized. .. As a result, the positions of the check valve and the valve seat surface in the container axial direction can be stabilized regardless of repeated opening/closing operations, so that the contact state between the check valve and the valve seat surface can be stabilized. It is possible to secure the sealability of the check valve against the valve seat surface for a long period of time.

According to the foam jetting container of the present invention, it is possible to suppress the nozzle head from being forcibly moved downward with respect to the mounting cap, and obtain stable operability for a long period of time.

It is a longitudinal cross-sectional view showing the open position in the squeeze container according to the embodiment. In the squeeze container which concerns on embodiment, it is sectional drawing equivalent to the II-II line of FIG. It is a longitudinal cross-sectional view showing a closed position in the squeeze container according to the embodiment. In the squeeze container which concerns on embodiment, it is sectional drawing equivalent to the IV-IV line of FIG. It is a longitudinal cross-sectional view which shows an open position in the squeeze container which concerns on the other structure of embodiment. FIG. 6 is a cross-sectional view corresponding to line VI-VI of FIG. 5 in a squeeze container according to another configuration of the embodiment. It is a longitudinal cross-sectional view which shows a closed position in the squeeze container which concerns on the other structure of embodiment. In the squeeze container which concerns on the other structure of embodiment, it is sectional drawing equivalent to the VIII-VIII line of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the squeeze container (foam ejection container) 1 of the present embodiment ejects the content liquid contained in the container body 2 in the form of foam. Specifically, the squeeze container 1 includes a bottomed cylindrical container body 2 and a toped cylindrical ejection head 4 attached to an opening 3 of the container body 2. Various liquid detergents (for example, shampoo, body soap, hand soap, face wash, mouthwash, etc.), liquid hair styling agents, etc. are preferably used as the content liquid contained in the container body 2.

Here, the container body 2 and the ejection head 4 are arranged in a state where their central axes are located on a common axis. Hereinafter, this common axis is referred to as the container axis O, the ejection head 4 side of the squeeze container 1 along the container axis O direction (vertical direction) is referred to as the upper side, and the container body 2 side is referred to as the lower side. Further, a direction orthogonal to the container axis O in a plan view viewed from the container axis O direction is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

At least the body portion 5 (see FIG. 2) of the container body 2 is formed thin or soft and is elastically deformable. Therefore, the container body 2 can pressurize the inside of the container body 2 by squeezing (squeezing) the body portion 5 so as to reduce the volume inside the container body 2. However, at least a part of the container body 2 may be elastically deformable. Further, the body portion 5 of the present embodiment has a flat shape in which the major axis and the minor axis are orthogonal to each other on the container axis O in a cross-sectional view orthogonal to the container axis O. However, the cross-sectional view shape of the body portion 5 can be appropriately changed to a circular shape or the like.

As shown in FIG. 1, the ejection head 4 includes a mounting cap 11 mounted on the opening 3 of the container body 2, a nozzle head 12 mounted on the mounting cap 11 so as to reciprocate around the container axis O, and a nozzle. The partition member 13 fixed to the head 12 is provided. The mounting cap 11, the nozzle head 12, and the partitioning member 13 are each made of synthetic resin or the like.

The mounting cap 11 is formed in a multi-stage tubular shape having a smaller diameter toward the upper side. The mounting cap 11 includes a mounting cylinder 21, a ring plate portion 22, a seal cylinder 23, a stopper cylinder 24, and a distribution cylinder 25.

The mounting cylinder 21 is mounted on the mouth portion 3 described above. Specifically, on the inner peripheral surface of the mounting cylinder 21, there is formed an engagement protrusion 27 that protrudes inward in the radial direction and is undercut-fitted to the support ring 6 formed in the mouth portion 3. There is. However, the mounting method of the mounting cap 11 to the mouth portion 3 of the container body 2 is not limited to this case, and may be mounted by screwing, for example.
The ring plate portion 22 is provided so as to protrude inward in the radial direction from the upper end edge of the mounting cylinder 21. The ring plate portion 22 faces the upper end opening edge of the mouth portion 3 over the entire circumference in the container axis O direction.
The seal cylinder 23 extends from the inner peripheral edge of the ring plate portion 22 in the container axis O direction. A portion of the seal cylinder 23 located below the ring plate portion 22 is fitted into the mouth portion 3.

The stopper cylinder 24 extends upward from the inner peripheral surface of the portion of the seal cylinder 23 located above the ring plate portion 22. Therefore, the lower end surface of the stopper cylinder 24 is located inside the seal cylinder 23 in the radial direction and constitutes a valve seat surface 24 a facing downward. In the present embodiment, the valve seat surface 24a is formed as a flat surface orthogonal to the container axis O. However, the valve seat surface 24a is not limited to a flat surface, and may extend obliquely with respect to the container axis O.

The flow tube 25 projects radially inward from a central portion of the stopper tube 24 in the container axis O direction, and then extends upward. The upper end edge of the flow tube 25 is located at the same height as the upper end edge of the stopper tube 24. The inside of the circulation cylinder 25 constitutes a circulation port 25a for circulating the content liquid. The circulation port 25a communicates with the inside of the container body 2. The circulation port 25 a allows the content liquid and air in the container body 2 to flow out toward the outside of the mounting cap 11, and allows the air (outside air) from the outside of the mounting cap 11 to flow into the container body 2.

The nozzle head 12 is formed in a topped cylindrical shape that covers the mounting cap 11 from above. The nozzle head 12 has a cylindrical cover cylinder 31 that surrounds the mounting cylinder 21 of the mounting cap 11 from the outside in the radial direction, and a cylindrical engagement cylinder 33 that is connected to the upper end of the cover cylinder 31 via an annular flange wall 32. And are equipped with. The nozzle head 12 is screwed into the mounting cylinder 21 of the mounting cap 11, so that the nozzle head 12 moves in the container axis O direction with respect to the mounting cap 11 as it reciprocates around the container axis O with respect to the mounting cap 11. It is configured to be possible.

Specifically, on the outer peripheral surface of the mounting cylinder 21 of the mounting cap 11 described above, a pair of male screw portions 35 are provided at positions displaced by 180° in the circumferential direction. The male screw portion 35 is composed of a double thread. Each male screw portion 35 includes an upper screw thread 35a and a lower screw thread 35b that extend in the angular range of 180° in the circumferential direction along the outer peripheral surface of the mounting cylinder 21. Although not shown, in the upper screw thread 35a, a portion in a range of about 90° from the tip end on the screwing side (upper side) extends horizontally along the circumferential direction and is connected to the tip end of the lower screw thread 35b on the screwing side. ing.

On the other hand, on the inner peripheral surface of the cover cylinder 31 of the nozzle head 12, a pair of female screw portions 41 are provided at positions shifted by 180° in the circumferential direction so as to correspond to the pair of male screw portions 35. Each female screw portion 41 is engaged (screw coupled) with the corresponding male screw portion 35. Each female screw portion 41 includes an upper engaging protrusion 41a and a lower engaging protrusion 41b, which are arranged in the container axis O direction at intervals. The upper engaging protrusions 41a are engaged with the upper screw threads 35a of the corresponding male screw portion 35 from above when the nozzle head 12 shown in FIG. 3 is in the closed position. In the state shown in FIG. 3, the lower engagement protrusions 41b engage with the lower threads 35b of the corresponding male screw portion 35 from below. The above-described male screw portion 35 is not limited to the double-start screw, and may be, for example, a single-start screw or another multiple-start screw. Further, the female screw portion 41 can also be changed as appropriate according to the shape of the male screw portion 35.

Further, the rotation range of the nozzle head 12 with respect to the mounting cap 11 is restricted to an angular range of 90°, for example, by a stopper mechanism 38 provided between the mounting cap 11 and the nozzle head 12. The stopper mechanism 38 will be described later.

As shown in FIG. 1, the nozzle head 12 includes a partition wall 42 that partitions the interior of the nozzle head 12 in the direction of the container axis O, a nozzle 43 that communicates with the circulation port 25a, and an opening/closing lid portion that opensly closes the circulation port 25a. 44, and are further provided.
The nozzle 43 projects outward in the radial direction from a portion of the engagement cylinder 33 located above the partition wall 42. In the illustrated example, the nozzle 43 is formed in an elliptic cylinder shape in a side view as viewed from the radial direction. The tip opening portion of the nozzle 43 constitutes an ejection port 43a for ejecting the content liquid.

The opening/closing lid portion 44 is provided so as to protrude downward from the partition wall 42. The opening/closing lid part 44 is formed in a cylindrical shape having an outer diameter that allows it to be fitted into the flow tube 25 of the mounting cap 11. In the state shown in FIG. 3, the opening/closing lid part 44 is fitted into the distribution tube 25 to close the distribution port 25a (closed position). On the other hand, when the nozzle head 12 shown in FIG. 1 is in the open position, the opening/closing lid part 44 is released from the fitting with the distribution tube 25 and opens the distribution port 25a.
As described above, the nozzle head 12 is provided between the closed position in which the opening/closing lid portion 44 closes the circulation port 25a and the open position in which the opening/closing lid portion 44 separates above the circulation port 25a and opens the circulation port 25a. Rotate back and forth.

The partition wall 42 is formed with a through hole 45 penetrating the partition wall 42 in the container axis O direction. The through hole 45 is formed in a circular shape in plan view when viewed from the container axis O direction. A plurality of through holes 45 are formed in the partition wall 42 at intervals in the circumferential direction. The nozzle 43 described above communicates with the flow port 25 a of the mounting cap 11 through the through hole 45. The number and shape of the through holes 45 may be changed appropriately.

A restricting cylinder 50 extending downward is formed at a portion of the partition wall 42 located radially outside the through hole 45. The restriction cylinder 50 is fitted on the outer peripheral surface of the distribution cylinder 25 so as to be slidable in the container axis O direction. The regulation cylinder 50 regulates that the flow path connecting the circulation port 25 a and the through hole 45 inside the mounting cap 11 and the nozzle head 12 communicates with the outside through the circulation cylinder 25 and the regulation cylinder 50. doing.

A connection cylinder 51 extending downward is formed in a portion of the partition wall 42 located radially inside the opening/closing lid portion 44. In the illustrated example, the connection cylinder 51 projects below the opening/closing lid portion 44.
Further, in the partition wall 42, a connection hole 52 penetrating the partition wall 42 in the container axis O direction is formed in a portion located inside the connection cylinder 51 in the radial direction. In the illustrated example, the connection hole 52 is formed coaxially with the container axis O.

The partitioning member 13 enters the container body 2 through the circulation port 25a to partition the circulation port 25a from the mouth portion 3 of the container body 2. The partition member 13 is configured to be dividable in the container axis O direction. In the illustrated example, the partitioning member 13 includes a first member 61 and a second member 62 located below the first member 61 and combined with the first member 61. The partitioning member 13 may be configured by one member or may be configured by combining three or more members.

The upper end of the first member 61 is fitted and fixed in the connecting cylinder 51 and the connecting hole 52 from below. As a result, the partition member 13 as a whole is integrally connected to the nozzle head 12. Therefore, the partition member 13 rotates with respect to the mounting cap 11 together with the nozzle head 12 with the reciprocating rotation of the nozzle head 12 between the open position (see FIG. 1) and the closed position (see FIG. 3) and the container shaft. Move in O direction.

A mixing chamber 63 that communicates with the flow port 25a is defined in the second member 62. At the lower end of the second member 62, an air inlet 65 for introducing the air in the container body 2 into the mixing chamber 63 and a liquid inlet 66 for introducing the content liquid into the mixing chamber 63 are formed. ..

In the illustrated example, a lower end of the second member 62 is integrally formed with the second member 62 so as to project downward. A tube 68 extending toward the bottom of the container body 2 is fitted into the insertion tube 67 from below. The portion of the insertion tube 67 located inside the tube 68 constitutes the liquid inlet 66 described above. On the inner peripheral surface of the insertion tube 67, a plurality of vertical grooves 69 are formed at intervals in the circumferential direction. As a result, a gap is defined by the vertical groove 69 between the inner peripheral surface of the insertion tube 67 and the outer peripheral surface of the tube 68. This gap serves as an air inlet 65.

With such a configuration, in the squeeze container 1, the content liquid in the container body 2 can be introduced into the mixing chamber 63 through the liquid introduction port 66, and the air in the container body 2 can be introduced into the mixing chamber 63 through the air introduction port 65. Can be introduced. The content liquid introduced from the liquid introduction port 66 and the air introduced from the air introduction port 65 have an opening 72 of a frustoconical intake portion 71 projecting upward in the second member 62. Through the second member 62 and then mixed with each other in the mixing chamber 63.

Inside the second member 62, a pair of foaming members 73 is mounted so as to be located above the mixing chamber 63 at a portion located above the intake portion 71. As the foaming member 73, for example, one having a structure in which a mesh is fixed to the end surface of the ring is used, and the foaming member 73 is fitted and fixed to the inside of the second member 62 in a posture in which the meshes are directed to opposite sides. The foaming member 73 is not limited to a structure having a ring and a mesh, and various configurations may be adopted depending on the type of the content liquid and the like. Further, the number of foaming members 73 to be installed can be variously changed according to the kind of the content liquid.

A portion of the first member 61, which is located above the foaming member 73, constitutes a jetting flow passage 75 continuous from the mixing chamber 63. The ejection passage 75 communicates with the circulation port 25a through a plurality of communication holes 76 formed in the first member 61. As a result, the mixing chamber 63 can communicate with the circulation port 25 a through the ejection passage 75 and the communication hole 76, and can further communicate with the inside of the nozzle 43 through the circulation port 25 a and the through hole 45. The numbers and shapes of the communication holes 76 and the openings 72 may be changed appropriately.

An inside of the mounting cap 11 is formed with an introduction channel 79 defined between the inner surface of the mounting cap 11 and the outer surface of the partition member 13. The introduction flow passage 79 communicates with the circulation port 25 a and also communicates with the inside of the container body 2 through the communication port 80 formed in the second member 62.

A check valve 81 is provided in the introduction flow passage 79. In the illustrated example, the check valve 81 includes a cylindrical holding portion 82 fitted to the first member 61, and an annular and film-shaped sealing film 83 extending radially outward from the outer peripheral surface of the holding portion 82. ,have. Since the check valve 81 is integrally fixed to the first member 61 as described above, the check valve 81 moves in the container axis O direction while rotating around the container axis O together with the nozzle head 12. The check valve 81 may be fitted to the second member 62.

Therefore, as shown in FIG. 1, when the nozzle head 12 is located at the open position, the outer peripheral edge of the seal film 83 elastically contacts the valve seat surface 24a of the mounting cap 11 from below. As a result, the check valve 81 regulates the flow of the air and the content liquid from the inside of the container body 2 to the circulation port 25a passing through the introduction flow passage 79, and at the same time, the container main body passing from the circulation port 25a to the introduction flow passage 79. Operates to allow the flow of air and liquid contents into

On the other hand, as shown in FIG. 3, when the nozzle head 12 is located at the closed position, the outer peripheral edge of the seal film 83 separates downward from the valve seat surface 24a. Therefore, when the nozzle head 12 is located at the closed position, the inside of the container body 2 is in a state of communicating with the circulation port 25 a through the introduction flow passage 79.

As shown in FIG. 2, the stopper mechanism 38 described above limits the rotation of the nozzle head 12 with respect to the mounting cap 11 to an angular range of 90° between the open position shown in FIG. 1 and the closed position shown in FIG. ing. The stopper mechanism 38 includes an open position stopper 85 and a closed position stopper 86 provided on the mounting cap 11, and a protruding piece (engaged portion) 87 provided on the nozzle head 12.

The open position stoppers 85 are provided so as to project outward in the radial direction from positions on the outer peripheral surface of the stopper cylinder 24 that are offset by 180° in the circumferential direction. The open position stopper 85 is formed in a quarter circle shape in a plan view. Specifically, the surface of the open position stopper 85 that faces one side in the circumferential direction (tightening direction) constitutes a stopper surface 85a that linearly extends in a direction intersecting the radial direction in a plan view. Specifically, the stopper surface 85a of the open position stopper 85 is an inclined surface that extends in the loosening direction toward the inner side in the radial direction. A surface of the open position stopper 85 facing the other circumferential direction (a loosening direction) constitutes a curved surface of a protrusion on the outer side in the radial direction. That is, in the curved surface of the open position stopper 85, the amount of outward bulging in the radial direction gradually decreases in the loosening direction. The stopper surface 85a of the open position stopper 85 may be formed as a flat surface that linearly extends in the radial direction.

Further, on the outer peripheral surface of the stopper cylinder 24, a locking projection 88 is formed at a portion located in the tightening direction with respect to each open position stopper 85 so as to project outward in the radial direction. The radial outer edge of the locking projection 88 is located radially inward of the radial outer edge of the open position stopper 85.

The closed position stoppers 86 are provided on the outer peripheral surface of the stopper cylinder 24 so as to project outward in the radial direction from positions that are displaced by 90° in the circumferential direction with respect to the respective open position stoppers 85 described above. The closed position stopper 86 is formed in a quarter circle shape in a plan view. Specifically, the surface of the closed position stopper 86 that faces the loosening direction constitutes a stopper surface 86a that extends linearly in the radial direction in plan view. A surface of the closed position stopper 86 facing the tightening direction is formed as a curved surface in which the amount of outward bulging in the radial direction gradually decreases as the tightening direction is approached. Note that the stopper surface 86a of the closed position stopper 86 may also be formed as an inclined surface that extends in the tightening direction toward the inner side in the radial direction. Further, in the present embodiment, the stoppers 85 and 86 are formed over the entire area of the outer peripheral surface of the stopper cylinder 24 in the container axis O direction.

Further, on the outer peripheral surface of the stopper cylinder 24, a locking projection 89 is formed at a portion located in the loosening direction with respect to each closed position stopper 86, and projects outward in the radial direction. An outer edge of the locking projection 89 in the radial direction is located radially inward of an outer edge of the closed position stopper 86 in the radial direction.

The protruding piece 87 is integrally formed on the inner peripheral surface of the engagement cylinder 33 of the nozzle head 12. Each of the protruding pieces 87 projects inward in the radial direction from a position on the inner peripheral surface of the engagement cylinder 33 that is offset by 180° in the circumferential direction. The radially inner end surface of the protruding piece 87 is close to the outer peripheral surface of the stopper cylinder 24. That is, the radially inner end surface of the projection piece 87 is located radially inward of the radially outer end edge of each of the stoppers 85 and 86 and the locking projections 88 and 89 described above. The respective projecting pieces 87 are arranged between the respective stopper surfaces 85a, 86a of the open position stopper 85 and the close position stopper 86 (moving range R). Therefore, each protruding piece 87 faces the stopper surfaces 85a and 86a of the stoppers 85 and 86 in the circumferential direction.

The pair of protruding pieces 87 moves in the movement range R along the circumferential direction as the nozzle head 12 rotates with respect to the mounting cap 11. As shown in FIG. 4, the surface of the pair of protrusions 87 that faces the tightening direction (closed position restricting surface 87a), when the nozzle head 12 is most tightened with respect to the mounting cap 11, The stopper surface 86a of the corresponding closed position stopper 86 is contacted from the loosening direction. As a result, further rotation of the nozzle head 12 in the tightening direction is restricted (closed position). In the present embodiment, the radially inner end of the closed position restricting surface 87a (the portion that contacts the stopper surface 86a) is a flat surface that extends linearly in the radial direction. However, the closed position restricting surface 87a may be formed as an inclined surface that inclines in the tightening direction toward the inner side in the radial direction.

The surface of the pair of protrusions 87 facing the loosening direction (open position regulating surface 87b) corresponds to the open position stopper 85 as shown in FIG. 2 when the nozzle head 12 rotates 90° in the loosening direction from the closed position. The stopper surface 85a is abutted from the tightening direction. As a result, further rotation of the nozzle head 12 in the loosening direction is restricted (open position). In the present embodiment, the radially inner end of the open position restricting surface 87b (the portion that comes into contact with the stopper surface 85a) is formed as an inclined surface that inclines in the loosening direction toward the radially inner side. However, the open position restricting surface 87b may be a flat surface extending linearly in the radial direction. In this case, the angle of inclination of the open position restricting surface 87b with respect to the radial direction corresponds to the stopper surface 85a. That is, in the open position, the nozzle head 12 is restricted from rotating in the loosening direction with the open position restricting surface 87b and the stopper surface 85a in surface contact with each other.

Therefore, even when the nozzle head 12 is rotated in any direction around the container axis O, the nozzle head 12 is positioned at the open position and the closed position by the stopper mechanism 38, and the reciprocating rotation in the angle range of 90° is appropriately performed. Done.

In addition, as described above, the surface of each of the stoppers 85 and 86 facing the side opposite to the movement range R is a curved surface. Therefore, in the squeeze container 1, for example, when the mounting cap 11 and the nozzle head 12 are assembled, each projecting piece 87 is arranged in a range between the curved surfaces of the stoppers 85 and 86, and each female screw portion 41 is provided. Is screwed to the corresponding male screw portion 35 and the nozzle head 12 is rotated in the tightening direction. Then, each projection piece 87 moves along the curved surfaces of the stoppers 85 and 86 and rides over the stoppers 85 and 86 in the circumferential direction, whereby the protrusions 87 can be arranged within the moving range R of the corresponding stoppers 85 and 86.

Particularly, in the present embodiment, since the double thread is used for the male screw portion 35, the nozzle head 12 is attached to the mounting cap 11 until the upper engagement protrusion 41a comes into contact with the horizontal tip portion of the upper screw thread 35a. It is possible to rotate the nozzle head 12 after arranging the protruding pieces 87 at positions where they can be engaged with the stoppers 85 and 86 by dropping them downward.

Here, as shown in FIG. 4, an engaging portion 91 is formed on a portion of the outer peripheral surface of the stopper cylinder 24, which is located between the open position stopper 85 and the locking projection 88 in the circumferential direction. .. The engaging portion 91 is formed in an L shape in a plan view. Specifically, the engaging portion 91 includes a first extending portion 91a that extends radially outward from the outer peripheral surface of the stopper cylinder 24, and a tightening direction from the radially outer end portion of the first extending portion 91a. And a second extending portion 91b extending toward. At least the inner end of the first extending portion 91a in the radial direction is continuous with the open position stopper 85 in the tightening direction. Further, at least the second extending portion 91b is located on the outer side in the radial direction than the outer edge of the open position stopper 85 in the radial direction. The plan view shape of the engaging portion 91 can be appropriately changed.

Further, the upper end surface of the engaging portion 91 is formed as a flat surface extending in a direction orthogonal to the container axis O. The upper end surface of the engaging portion 91 is located below the upper end surface of the open position stopper 85. In the present embodiment, the upper end surface of the engaging portion 91 is set to a height at which the lower end surface of the protruding piece 87 can ride up when the nozzle head 12 moves to the open position. In this case, the height (distance in the container axis O direction) from the upper end surface of the engaging portion 91 to the lower end surface of the protruding piece 87 is determined by the gap between the male screw portion 35 and the female screw portion 41 in the container axis O direction ( Rattling) It is set below. The gap between the male screw portion 35 and the female screw portion 41 is for reducing the resistance force caused by friction or the like when the nozzle head 12 rotates.

The upper end surface of the engaging portion 91 is in contact with the lower end surface of the protruding piece 87 in the container axis O direction when the nozzle head 12 is in the open position shown in FIG. As a result, the nozzle head 12 is restricted from moving downward with respect to the mounting cap 11 when in the open position. If at least one of the upper end surface of the engaging portion 91 and the lower end surface of the protruding piece 87 is configured such that the lower end surface of the protruding piece 87 can ride on the upper end surface of the engaging portion 91, the container moves toward the loosening direction. It may be an inclined surface or a step surface extending in the direction approaching the other in the direction of the axis O.

Next, a method of operating the squeeze container 1 described above will be described.
As shown in FIGS. 3 and 4, in order to change the nozzle head 12 from the closed position to the open position, as described above, the nozzle head 12 is rotated in the loosening direction (the other circumferential direction) with respect to the mounting cap 11. At this time, the nozzle head 12 is rotated to a position where the protruding piece 87 comes into contact with the stopper surface 85a of the open position stopper 85 in the circumferential direction. Then, the nozzle head 12 moves upward with respect to the mounting cap 11 while rotating in the loosening direction with respect to the mounting cap 11.

Here, in the process of moving the nozzle head 12 to the open position, the projection piece 87 first crosses over the locking projection 88 in the circumferential direction, and then hits the engaging portion 91 (second extending portion 91b) in the circumferential direction. Contact. After that, by further rotating the nozzle head 12 in the loosening direction, the lower end surface of the protruding piece 87 rides on the upper end surface of the engaging portion 91 while the protruding piece 87 slides on the engaging portion 91. Then, as shown in FIGS. 1 and 2, the protruding piece 87 contacts the stopper surface 85a of the open position stopper 85 from the tightening direction as described above. As a result, the nozzle head 12 is in the open position while the downward movement of the nozzle head 12 is restricted. When the nozzle head 12 is in the open position, the projection piece 87 is locked by the locking projection 88 from the loosening direction, thereby restricting the movement of the nozzle head 12 to the closed position. The nozzle head 12 may be rotated in the loosening direction while the nozzle head 12 is being pulled up with respect to the mounting cap 11 in advance. Thereby, circumferential interference between the protruding piece 87 and the engaging portion 91 is suppressed, and the lower end surface of the protruding piece 87 easily rides on the upper end surface of the engaging portion 91.

Further, when the nozzle head 12 is in the open position, the opening/closing lid part 44 is separated from above the circulation port 25a to open the circulation port 25a, and the outer peripheral edge of the seal film 83 of the check valve 81 is attached to the mounting cap 11. The valve seat surface 24a of the above is abutted from below. As a result, the squeeze container 1 is in a usable state in which the content liquid can be ejected by squeezing the body portion 5. Note that, as shown in FIG. 2, when the nozzle head 12 is in the open position, the nozzle 43 faces the direction along the short axis of the body portion 5.

As shown in FIG. 1, in order to eject the content liquid in the container body 2, first, the body portion 5 is squeezed to pressurize the container body 2. That is, when the body portion 5 is squeezed, the content liquid in the container body 2 flows into the mixing chamber 63 through the liquid introduction port 66 (tube 68), and the air in the container body 2 is mixed through the air introduction port 65. It flows into the chamber 63. The content liquid flowing into the mixing chamber 63 is foamed by passing through the foaming member 73 together with air in the mixing chamber 63. The foamed content liquid flows out of the partition member 13 through the communication hole 76 and out of the mounting cap 11 through the circulation port 25a. After that, the content liquid flows into the nozzle 43 through the through hole 45 and is then ejected from the ejection port 43a to the outside.

When the squeezing of the body portion 5 is released after the content liquid is ejected, the body portion 5 returns to its original shape, and a negative pressure is generated in the container body 2. The negative pressure causes the seal film 83 to elastically deform downward, and the outer peripheral edge of the seal film 83 separates downward from the valve seat surface 24a, so that the introduction flow passage 79 and the inside of the container body 2 pass through the communication port 80. Communicate. Then, the content liquid remaining in the nozzle 43 or the like is drawn into the container body 2 through the introduction flow passage 79 together with the air (outside air) sucked from the nozzle 43 (the injection port 43a) (so-called suck back function). This can prevent the content liquid remaining in the nozzle 43 from dripping outside from the ejection port 43a after the content liquid is ejected. The content liquid and air remaining in the nozzle 43 or the like may be drawn into the container body 2 through the communication hole 76 and the partition member 13.

To move the nozzle head 12 from the open position to the closed position, the nozzle head 12 is rotated in the tightening direction (one of the circumferential directions) with respect to the mounting cap 11. At this time, as shown in FIGS. 3 and 4, the nozzle head 12 is rotated to a position where the protruding piece 87 comes into contact with the stopper surface 86a of the closed position stopper 86 in the circumferential direction. Then, the nozzle head 12 moves downward with respect to the mounting cap 11 while rotating in the tightening direction with respect to the mounting cap 11.

Here, in the process in which the nozzle head 12 moves to the closed position, the projection piece 87 first retracts from the upper end surface of the engaging portion 91, so that the downward movement of the nozzle head 12 with respect to the mounting cap 11 is allowed. After that, the projection piece 87 moves over the locking projection 88 and moves in the movement range R toward the closed position stopper 86. Then, after the projection piece 87 has passed over the locking projection 89, it comes into contact with the stopper surface 8a of the closed position stopper 86 from the loosening direction. This brings the nozzle head 12 to the open position. When the nozzle head 12 is in the closed position, the projection piece 87 is locked by the locking projection 89 from the tightening direction, whereby the movement of the nozzle head 12 to the open position is restricted.

When the nozzle head 12 is in the closed position, the opening/closing lid part 44 is fitted into the distribution cylinder 25, so that the distribution port 25a is closed. As a result, the communication between the inside of the nozzle 43 and the inside of the container body 2 is blocked, so that even if the body part 5 is squeezed unexpectedly, the content liquid inside the container body 2 leaks out through the nozzle 43. Can be suppressed.

In the process of moving the nozzle head 12 to the closed position, the partition member 13 moves downward together with the nozzle head 12 with respect to the mounting cap 11, so that the seal film 83 of the check valve 81 moves from the valve seat surface 24a. Separated downwards. Therefore, in the squeeze container 1 of the present embodiment, the nozzle head 12 is in the closed position in a state where the inside of the container body 2 and the introduction flow passage 79 are communicated with each other through the communication port 80. In this case, even if the pressure in the container body 2 is raised for some reason such as an increase in ambient temperature, the pressure in the container body 2 can be easily released to the outside of the container body 2. That is, in the closed position of the nozzle head 12, the inside of the container body 2 and the flow port 25a communicate not only with the tube 68 that opens into the content liquid inside the container body 2 but also into the head space inside the container body 2. Communication is performed through the port 80 and the introduction flow passage 79. As a result, the pressure in the container body 2 is released to the outside of the container body 2 through the communication port 80 and the introduction flow passage 79 in addition to the tube 68 opening into the content liquid in the container body 2. The pressure rise inside can be suppressed. As a result, when the nozzle head 12 is operated toward the open position, it is possible to suppress the content liquid from being abruptly ejected from the nozzle 43.

As described above, in the present embodiment, when the nozzle head 12 is in the open position, the engaging portion 91 that engages the protruding piece 87 of the nozzle head 12 from below and restricts the downward movement of the nozzle head 12 with respect to the mounting cap 11. Is formed on the mounting cap 11.
With this configuration, even when a large downward force is applied to the nozzle head 12 when the nozzle head 12 is in the open position, the nozzle head 12 is forced to move downward with respect to the mounting cap 11. You can suppress the movement. Therefore, the screw portions 35, 41 are deformed by the collision between the female screw portion 41 formed on the nozzle head 12 and the male screw portion 35 formed on the mounting cap 11, or the screw portions 35, 51 ride on each other in the container axis O direction. As a result, it is possible to prevent the engagement between the male screw portion 35 and the female screw portion 41 from being displaced. Thereby, stable operability can be obtained over a long period of time.

In the present embodiment, in the process of the nozzle head 12 moving to the open position, the projecting piece 87 rides on the engaging portion 91 to stabilize the position of the nozzle head 12 in the container axis O direction with respect to the mounting cap 11 in the open position. be able to. As a result, the positions of the check valve 81 and the valve seat surface 24a in the container axis O direction can be stabilized regardless of the repeated opening/closing operations, so that the check valve 81 (seal film 83) and the valve seat surface 24a can be stabilized. It is possible to stabilize the contact state with the valve seat and the sealability of the check valve 81 with respect to the valve seat surface 24a for a long period of time.

In the present embodiment, at least the open position restricting surface 87b of the protruding piece 87 and the stopper surface 85a of the open position stopper 85 are inclined at the corresponding inclination angles, so that the open position restricting surface 87b and the stopper surface 85a are in the open position. Will be in surface contact. As a result, when an external force such that the nozzle head 12 further rotates in the loosening direction is applied, due to the tilted state of the open position restricting surface 87b and the stopper surface 85a, the nozzle head 12 slides on the stopper surface 85a in the radial direction. It is possible to apply a stress to the protrusion 87 such that the protrusion 87 is pulled inward. As a result, the protruding piece 87 can bite into the open position stopper 85, and further rotation of the nozzle head 12 can be effectively suppressed, and the nozzle head 12 can be reliably positioned at the closed position.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design changes and the like within a range not departing from the gist of the present invention.
In the above-described embodiment, the configuration in which the engagement cylinder 33 is connected to the upper side of the cover cylinder 31 has been described, but the configuration is not limited to this. Like the squeeze container 100 shown in FIGS. 5 to 8, the engagement cylinder 133 may be formed on a portion of the top wall of the nozzle head 112 that is located radially inward of the cover cylinder 31.
In the above-described embodiment, the configuration in which the male screw portion 35 is formed on the mounting cylinder 21 has been described, but the configuration is not limited to this configuration. As shown in FIG. 5 and the like, the male screw portion 35 may be formed on the nozzle mounting cylinder 129 that projects upward from the portion of the ring plate portion 22 that is located radially outside the stopper cylinder 24.

In the above-mentioned embodiment, the case where the plan view shape of the engaging portion 91 is formed in an L shape has been described, but the configuration is not limited to this configuration. For example, the shape of the engaging portion can be appropriately changed, such as a linear shape in a plan view extending in the radial direction like the engaging portion 191 shown in FIG. Further, in the above-described embodiment, the configuration in which the lower end surface of the protruding piece 87 and the upper end surface of the engaging portion 91 contact each other at the open position of the nozzle head 112 has been described, but the configuration is not limited to this. As long as the nozzle head 112 is configured to restrict the downward movement of the mounting cap 111, the lower end surface of the protruding piece 87 and the engaging portion 191 are in the open position of the nozzle head 112 as in the squeeze container 100 shown in FIG. A configuration may be adopted in which the upper end surface is close to the container axis O direction.

In the above-described embodiment, the configuration in which the partition member 13 is connected to the nozzle head 12 has been described, but the configuration is not limited to this configuration, and a configuration in which the partition member 113 is connected to the mounting cap 111, such as the partition member 113 shown in FIG. I do not care. Specifically, the upper end of the partition member 113 is fitted from below between the stopper tube 24 and the flow tube 25 in the mounting cap 111. In the partition member 113, the introduction portion 201 that constitutes the bottom wall portion is fitted and fixed in the lower end portion of the peripheral wall portion of the partition member 113. As a result, the mixing chamber 163 is partitioned inside the partition member 113.

The introduction part 201 forms an air introduction port 165 and a liquid introduction port 166 at the lower end of the partition member 113. The air introduction port 165 does not pass through the tube 68 but allows the inside of the container body 2 and the mixing chamber 163 to communicate with each other. The liquid inlet 166 connects the inside of the container body 2 and the mixing chamber 163 through the inside of the tube 68.
An umbrella-shaped body 210 is formed integrally with the introduction portion 201 on the partition member 113. The umbrella-shaped body 210 is arranged coaxially with the container axis O, and surrounds the insertion tube 67 from the outside in the radial direction. The umbrella-shaped body 210 prevents the content liquid in the container body 2 from entering the mixing chamber 163 through the air introduction port 165.

Also in the squeeze container 100 shown in FIGS. 5 to 8, the nozzle head 112 can be moved between the open position and the closed position and the ejection operation can be performed by the same operation method as in the above-described embodiment. However, in the configuration shown in FIGS. 5 to 8, since the partitioning member 113 is coupled to the mounting cap 111 as described above, the check valve 81 (seal film 83) and the valve seat surface 24a are kept in the closed position. The contact state is maintained.

Although the check valve held by the partition member contacts the valve seat surface formed on the mounting cap in the above-described embodiment, the check valve is not limited to this structure and the check valve held by the mounting cap is not limited thereto. The valve may be in contact with the valve seat surface of the partition member.
In the above-described embodiment, the configuration having two stoppers 85 and 86 and two locking projections 88 and 89 for positioning the nozzle head at the open position and the closed position has been described, but the stoppers 85 and 86 and the locking projections 88 and 89 are described. May be one each or a plurality of three or more. Further, it may be configured without the stoppers 85 and 86 and the locking projections 88 and 89.
In the above-described embodiment, the case where the rotation range of the nozzle head 12 is set to 90° has been described, but the rotation range of the nozzle head 12 can be set to any angle other than 90°.
In the above-described embodiment, the configuration in which the downward movement of the nozzle head is restricted by the engaging portion when the nozzle head is in the open position has been described. However, in addition to this configuration, when the nozzle head is in the closed position, It may be configured to have a restriction portion that restricts upward movement.

As described above, it is possible to appropriately replace the constituent elements in the above-described embodiments with known constituent elements without departing from the spirit of the present invention.

1,100... Squeeze container (foam jet container)
2... Container body 3... Port 11,111... Mounting cap 12, 112... Nozzle head 13,113... Partitioning member 24a... Valve seat surface 25a... Flow port 43... Nozzle 44... Open/close lid 63, 163... Mixing chamber 65 , 165... Air introducing port 66, 166... Liquid introducing port 79... Introducing channel 81... Check valve 87... Projecting piece (engaged part)
91,191... Engaging portion

Claims (2)

While containing the content liquid, an elastically deformable container body,
A mounting cap that is mounted on the mouth of the container body and has a flow port for circulating the content liquid,
The closing lid portion for closing releasably the flow opening, which can communicate with a nozzle before Symbol circulation port, and has a female thread portion screwed to the male screw portion formed on the mounting cap, the container axis with respect to said mounting cap With the rotation around, the mounting is movable so as to move between a closed position in which the opening/closing lid part closes the flow port and an open position in which the open/close lid part is separated from the flow port upward to open the flow port. Nozzle head attached to the cap,
A mixing chamber communicating with the flow port, an air inlet for supplying the air in the container body to the mixing chamber, and a liquid inlet for supplying the content liquid in the container body to the mixing chamber, And a partition member partitioning between the flow path and the distribution port,
Between the inner surface of the mounting cap and the outer surface of the partition member, an introduction flow path that communicates the flow port and the inside of the container body is defined.
It has a check valve that restricts at least the flow of air from the inside of the container to the distribution port through the introduction flow path, and allows at least the flow of air from the distribution port into the container main body through the introduction flow path. ,
The nozzle head with respect to the mounting cap is engaged with the engaged portion formed on the nozzle head from below the engaged portion in the mounting cap with the nozzle head positioned at the open position. A foam ejection container, characterized in that an engaging portion for restricting downward movement of the foam ejection container is formed. The check valve is disposed on one of the mounting cap and the partition member, and moves in the container axial direction together with the nozzle head as the nozzle head rotates around the container axis with respect to the mounting cap. The opening/closing lid part is movably disposed and in a state where the nozzle head is located at the open position, releasably abuts on a valve seat surface formed on the other side to openably close the introduction flow path. Is located in a closed position that closes the flow port, opens the introduction flow path away from the valve seat surface,
The bubble jetting container according to claim 1, wherein the engaged portion rides on the engaging portion while the nozzle head moves to the open position.

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