JP5430297B2 - Squeeze former - Google Patents

Description

  The present invention relates to a squeeze foamer that presses a container to discharge the contained liquid in the form of foam.

  Conventionally, there is a squeeze foamer that contains a liquid, and this liquid is a liquid detergent or the like and can be discharged in the form of foam. The squeeze foamer container of Patent Document 1 is provided with an outer container having an extrudability and an inner bag and a container main body that contains liquid, and a former cap that discharges the liquid in the container main body in the form of foam. The former cap includes a gas-liquid mixing chamber and a mesh member, a liquid inflow hole through which liquid in the inner bag flows into the gas-liquid mixing chamber, and an air inflow hole through which air between the outer container and the inner bag flows. Is provided.

  The foam ejection container of Patent Document 2 is a container that ejects foam by pressing the body portion, and is provided with a liquid delivery member that ejects liquid in the container body in a foam form. The liquid delivery member is provided with an air discharge hole for introducing air above the liquid level of the container when the body portion of the container is pressed, and a liquid pipe for supplying the liquid in the container body. In addition, an external air intake port through which external air flows into the container when the pressure on the container body is released is provided, and an external air intake valve is provided in the external air intake port.

  Furthermore, the foam discharge container of Patent Document 3 is provided with a cap that is attached to the opening of the container body, and the cap has a liquid introduction path extending into the container body and air communicating with the upper space in the container body. A gas-liquid mixing chamber communicating with the introduction path, the liquid introduction path, and the air introduction path is provided.

JP 2009-149325 A JP-A-7-223659 JP 7-215353 A

  In the case of the structure of each container according to the background art described above, there is a problem that the manufacturing cost increases because the structure for mixing the stored liquid and the air in the container is complicated. In addition, due to the complexity of the manufacture, the mechanism portion of the inner plug portion has become large, and it has been difficult to use it by attaching it to a small capacity container.

  The present invention has been made in view of the above-mentioned problems of the background art, and provides a squeeze foamer that simplifies the structure of the mechanism part, reduces the size of the inner plug part, and can be attached to a small-capacity bottle. The purpose is to do.

The present invention relates to a squeeze container that can be elastically deformed by external pressure, an inner plug body that is attached to the mouth of the squeeze container and has an insertion portion and an outside air inflow portion that penetrates the inside and outside, and an attachment portion of the inner plug body. A valve member that closes the outside air inflow portion, a porous body that is attached downstream of the valve member, and a tube that is attached upstream of the valve member and extends to the bottom of the squeeze container. The member includes a gas-liquid mixing chamber, a narrowed portion having a plurality of passages communicating between the gas-liquid mixing chamber and the inside of the squeeze container, a tube holding portion that connects the tube to the passage, and the inner plug body A check valve that closes the outside air inflow part and opens the squeeze container in a predetermined reduced pressure state, a porous body holding part that holds the porous body , and a liquid that opens into the passage of the narrowed part and opens in the squeeze container Send And body introduction passage, an air introduction path above with the air introduction passage and facing the passage of the stenosis open send air in the squeeze container is provided, wherein the air introduction path, the inner surface of the constriction And a space for introducing air between the tube and an end portion of the air introduction path is outside the center of the narrowed portion and the narrowed portion. The liquid introduction path is a notch formed on the inner circumferential wall surface of the narrowed part, and only the liquid introduction path is in the state where the tube is attached. A squeeze foamer that communicates with the inside of the tube and that opens at the end of the liquid introduction path toward the outer peripheral side of the constriction, and is opposed to the air introduction path .

In addition, the narrowed portion is partitioned by a plurality of thin partition portions radially spaced at equal intervals in the horizontal cross section to form the passage, and the passage is positioned at substantially equal intervals along the circumference. Each passage is provided with the liquid introduction path communicating with the upper end surface of the tube and the air introduction path opened to face the liquid introduction path.

Furthermore, in said plug body, the contact with the surface of the lower stream side of the porous body, the retaining member having a plurality of rod-like body located at equal intervals radially from one another from the center of the porous body to the sidewall is provided The space between the rod-shaped bodies is formed as a fan-shaped passage space, and the holding body holds the porous body .

  The squeeze foamer according to the present invention can reduce the cost by simplifying the structure of the mechanism portion, and can reduce the size of the inner plug portion so that it can be attached to a small-capacity bottle. The passage communicating with the gas-liquid mixing chamber is provided with a constricted portion, and the liquid introduction path from the container bottom and the air introduction path from the container mouth are formed to face each other, thereby increasing the flow velocity of the liquid and air. Thus, the mixing efficiency can be improved, and the contained liquid can be sufficiently foamed with uniform and fine bubbles.

It is a partial fracture perspective view of the squeeze former of one embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which opened the nozzle member of the squeeze foamer of this embodiment. It is a longitudinal cross-sectional view which shows the state which closed the nozzle member of the squeeze foamer of this embodiment. It is a perspective view of the squeeze former of this embodiment. It is a longitudinal cross-sectional view of the squeeze former of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show an embodiment of the present invention. A squeeze foamer 10 of this embodiment is provided with a squeeze container 12 that can be elastically deformed by an external pressure. The squeeze container 12 has a bottomed cylindrical container body 14. A cylindrical mouth 16 having a small diameter is integrally formed at the upper end of the container body 14, and a male screw 18 is formed on the outer peripheral surface of the mouth 16. Are integrally formed.

  An inner plug body 20 is screwed onto the male screw 18 of the squeeze container 12. The inner plug main body 20 is provided with a top surface portion 22 for closing the mouth portion 16. A cylindrical side surface portion 24 that covers the mouth portion 16 is provided on the outer peripheral portion of the top surface portion 22 so as to be fitted to the mouth portion 16 of the squeeze container 12. On the inner peripheral surface of the side surface portion 24, a female screw 26 that is screwed into the male screw 18 of the mouth portion 16 is formed. A cylindrical outer cylindrical portion 28 is provided concentrically and integrally on the top surface portion 22, and an inner side thereof opens as an insertion portion 27. A plurality of annular protrusions 29 are formed on the outer peripheral surface of the outer cylindrical portion 28 so as to be engaged with a nozzle member 46 which will be described later. On the surface of the top surface portion 22 on the container body 14 side of the squeeze container 12, a short cylindrical attachment portion 30 that is in close contact with the inner peripheral surface of the mouth portion 16 is integrally provided. On the surface of the top surface portion 22 opposite to the container main body 14 of the squeeze container 12, a side cylindrical portion 31 formed concentrically is integrally provided outside the outer cylindrical portion 28. Further, the insertion portion 27 is provided with an inner cylindrical portion 32 concentrically formed on the inner side with the outer cylindrical portion 28, and is continuous from the circumferential surface of the outer cylindrical portion 28 via a radial connecting portion 34. .

  A holding body 36 is formed in the vicinity of the end of the inner cylindrical portion 32 opposite to the squeeze container 12 and the container body 14. The cross-sectional shape of the holding body 36 in the horizontal direction is formed by a plurality of thin rod-like bodies 37 that are radially arranged at equal intervals, and fan-shaped passage spaces that are positioned at almost equal intervals along the circumference are formed. A space between the outer cylindrical portion 28 and the inner cylindrical portion 32 serves as an outside air inflow portion 33 through which outside air flows into the container body 14 of the squeeze container 12.

  A valve member 38 is provided inside the inner cylindrical portion 32 of the inner plug body 20. The valve member 38 is provided with a cylindrical insertion portion 40 that is fitted to the inner cylindrical portion 32. A check valve 42 formed in a flange shape is integrally formed on the outer peripheral surface of the insertion portion 40. The check valve 42 intersects and contacts the lower end portion of the inner cylindrical portion 32 of the inner plug main body 20 to close the outside air inflow portion 33 between the outer cylindrical portion 28 and the inner cylindrical portion 32.

A narrowed portion 44 is integrally formed on the inner peripheral side of the insertion portion 40 slightly above the check valve 42. The horizontal cross-sectional shape of the constricted portion 44 is formed with a passage 45 partitioned by a plurality of thin partition portions radially spaced at equal intervals, and fan-shaped passages 45 positioned at substantially equal intervals along the circumference. Is formed. An air introduction path 43 communicating with the air above the liquid level in the container body 14 of the squeeze container 12 is opened in the passage 45. The air introduction path 43 is a groove portion formed along the insertion direction on the inner side surface of the insertion portion 40, and is formed with a space for introducing air between the tube 60 described later. The air introduction path 43 is opened in a wall surface located outside the center of the narrowed portion 44 in the passage 45, and faces the center of the narrowed portion 44. Further, a liquid introduction path 41 communicating with the inside of the tube 60 described later is formed on the inner peripheral wall surface on the center side of the narrowed portion 44 of the passage 45. The liquid introduction path 41 is formed by cutting out the inner peripheral wall surface of the passage 45, and only the liquid introduction path 41 communicates with the inside of the tube 60 when the tube 60 is attached and the passage 45 is closed.

  Then, inside the insertion portion 40 of the valve member 38 and above the constricted portion 44 is a gas-liquid mixing chamber 47 for mixing air and medicine. The lower part of the insertion part 40 is a tube holding part 40a for connecting a tube 60 described later, and the upper part of the insertion part 40 is a porous body restraining part 40b that abuts a porous body 59 described later.

  A nozzle member 46 is attached above the inner plug body 20. The nozzle member 46 is provided with a circular top plate 48 that covers the outer cylindrical portion 28 of the inner plug main body 20 and the upper end portion of the inner cylindrical portion 32. A cylindrical side surface 50 that covers the outer cylindrical portion 28 is provided on the outer peripheral portion of the top plate 48 so as to be fitted to the outer cylindrical portion 28 of the inner plug main body 20. A protrusion 52 that is engaged with the protrusion 29 of the outer cylindrical portion 28 is formed on the inner peripheral surface of the lower end portion of the side surface portion 50. A discharge port 54 protruding outward is formed integrally with the top plate 48 in a part of the side surface portion 50. On the back surface of the top plate 48, an inner cylindrical part 56 fitted inside and an outer cylindrical part 58 fitted outside the inner cylindrical part 32 of the inner cylindrical part 32 of the inner plug body 20 are formed. .

  The upper end portion of the tube 60 is inserted into and connected to the tube holding portion 40 a of the insertion portion 40 of the valve member 38. The upper end portion of the tube 60 abuts on the narrowed portion 44 and closes the passage 45 of the narrowed portion 44, and only the liquid introduction path 41 communicates with the inside of the tube 60 and is connected to the passage 45. The lower end of the tube 60 reaches the bottom of the container body 14.

  A porous body 59 is provided on the inner surface of the inner cylindrical portion 32 of the inner plug main body 20 in contact with the surface of the holding body 36 on the container main body 14 side. The porous body 59 is a member in which fine pores that communicate with each other are formed. The porous body 59 is made of, for example, a sponge-like member, is formed in a circular shape that is fitted to the inner peripheral surface of the inner cylindrical portion 32, and the insertion portion 40 of the valve member 38. The porous body restraining portion 40b is held in contact with the porous body restraining portion 40b and the holding body 36.

  Next, the usage method of the squeeze former 10 of this embodiment is demonstrated. When storing the liquid stored in the container main body 14, the nozzle member 46 is placed on the upper part of the inner plug main body 20 and closed as shown in FIG. 2. At this time, the lower end portion of the side surface portion 50 of the nozzle member 46 comes into contact with the top surface portion 22 between the side surface cylindrical portion 31 and the outer cylindrical portion 28 of the inner plug body 20, and the protrusion 52 of the side surface portion 50 corresponds to the outer cylinder. Locked to the lowermost protrusion 29 of the portion 28.

  When discharging the liquid stored in the container main body 14, the nozzle member 46 is pulled up from the inner plug main body 20 as shown in FIG. At this time, the lower end portion of the side surface portion 50 of the nozzle member 46 is separated from the top surface portion 22, and the protrusion 52 is locked to the uppermost protrusion 29 of the outer cylindrical portion 28 to prevent the nozzle member 46 from falling off. In this state, the side surface of the container body 14 of the squeeze container 12 is pressed. Then, the internal pressure of the container body 14 increases, and the liquid passes through the tube 60 and passes through the liquid introduction path 41 of the narrowed portion 44 of the valve member 38 and enters the path 45. At this time, the air above the liquid level of the container body 14 also enters the passage 45 from the air introduction path 43, and the liquid and air are mixed to face each other in the passage 45 to become bubbles. The bubbles are further stirred and filled in the gas-liquid mixing chamber 47, pass through the porous body 59, become uniform bubbles, and are discharged to the outside from the discharge port 54 of the nozzle member 46.

  When the pressing of the container body 14 of the squeeze container 12 is released, the inside of the container body 14 is depressurized, and the outside air enters the outside air inflow part 33 from the outside air inflow part 33 of the inner plug body 20 through the discharge port 54 of the nozzle member 46. Then, the check valve 42 of the valve member 38 is opened, so that the outside air enters the container body 14 and becomes equal to the outside air pressure.

  According to the squeeze former 10 of this embodiment, the structure of the mechanism is simplified, the inner plug main body 20 and the valve member 38 are downsized, and the squeeze former 10 can be attached to the squeeze container 12 having a small capacity. The valve member 38 includes a tube holding portion 40 a for connecting the tube 60, a check valve 42 for closing the outside air inflow portion 33 for introducing air from the outside of the squeeze container 12, and a porous body suppressing portion 40 b for fixing the porous body 59. Since it is integrally molded, the number of parts can be reduced, the cost of parts and assembly costs can be reduced, and the cost can be reduced. Moreover, the structural part is simplified by integrating, and it becomes possible to make the inside stopper main body 20 and the valve member 38 small. Further, by providing the constricted portion 44, the flow rate of the liquid and air is increased to increase the mixing efficiency, and sufficient foaming can be achieved with only one porous body 59. Further, since both the liquid introduction path 41 from the bottom of the container body 14 of the squeeze container 12 and the air introduction path 43 from the mouth portion 16 are formed by extremely narrow flow paths, the squeeze container 12 is inverted and squeezed. However, the mixing ratio of liquid and air does not change, and stable foaming is possible. Since the cross-sectional shape of the holding body 36 is formed by a plurality of thin rod-like bodies 37 that are radially spaced at equal intervals, the holding body 36 can be firmly fixed without adhering or welding the porous body 59, and can be made of a flexible material or a pole. Even a thin porous body will not be deformed or dropped by the pressure at the time of pouring. Moreover, since the outer peripheral surface holding the porous body 59 can be made small, the opening becomes large even if the diameter of the porous body 59 is small, and the inner plug body 20 can be downsized. Thus, since each structure can be simplified as much as possible, the manufacturing cost of the squeeze foamer 10 can be suppressed, and the squeeze foamer 10 as a whole can be reduced in size to be compatible with a small-capacity squeeze container 12.

  The squeeze foamer of the present invention is not limited to the above embodiment, and the shapes of the check valve and the narrowed portion can be changed as appropriate. The valve member may be one in which three of the check valve, the tube holder, and the porous body pressing portion are not integrated, but any two are integrated. The connection method of each member should just be reliably airtight, such as what uses screwing, fitting, and airtight packing. The liquid to be stored can be used for various things such as liquid soap, disinfectant, lotion, and hair dye.

DESCRIPTION OF SYMBOLS 10 Squeeze former 12 Squeeze container 14 Main body 16 Mouth part 20 Inner plug main body 28 Outer cylindrical part 32 Inner cylindrical part 34 Connection part 36 Holding body 37 Rod-shaped body 38 Valve member 40 Insertion part 40a Tube holding part 40b Porous body suppression part 41 Liquid Introduction path 42 Check valve 43 Air introduction path 44 Narrow part 45 Path 46 Nozzle member 47 Gas-liquid mixing chamber 54 Discharge port 59 Porous body 60 Tube

Claims (3)

A squeeze container that can be elastically deformed by external pressure, an inner plug body that is attached to the mouth of the squeeze container and has an insertion portion and an outside air inflow portion that penetrates inside and outside, and an outside air inflow that is attached to the insertion portion of the inside plug body A valve member for closing the part, a porous body attached downstream of the valve member, and a tube attached upstream of the valve member and extending to the bottom of the squeeze container,
The valve member includes a gas-liquid mixing chamber, a constricted portion having a plurality of passages communicating between the gas-liquid mixing chamber and the inside of the squeeze container, a tube holding portion that connects the tube to the passage, A check valve that closes the outside air inflow part of the plug body and opens the squeeze container in a predetermined reduced pressure state, a porous body holding part that holds the porous body , an opening in the passage of the narrowed part , and the inside of the squeeze container A liquid introduction path for sending the liquid, and an air introduction path for opening the air in the squeeze container that opens in the passage of the constriction portion so as to face the air introduction path,
The air introduction path is a groove formed along the insertion direction on the inner side surface of the constriction part, and a space for introducing air is formed between the tube and the end of the air introduction path is the constriction Opening toward the center side of the constricted portion and outside the center of the portion,
The liquid introduction path is a notch formed on the inner peripheral wall surface on the center side of the narrowed part, and with the tube attached, only the liquid introduction path communicates with the inside of the tube, and the liquid introduction path The squeeze foamer is characterized in that an end of the squeeze foamer opens toward the outer peripheral side of the narrowed portion and is provided to face the air introduction path . The narrow portion is partitioned by a plurality of thin partition portions radially spaced at equal intervals in the horizontal cross section to form the passage, and the passage has a fan shape located at substantially equal intervals along the circumference. is formed, wherein the respective passages, the liquid introducing path communicating with an upper end face of the tube, squeeze foamer according to claim 1, wherein said air introducing passage that opens to face the liquid introduction path is provided . The said in the plug body, the porous body in contact with the surface of the lower stream side of the holding member having a plurality of rod-like body located radially equidistant from each other from the center of the porous body to the sidewall is provided, the The squeeze foamer according to claim 1 , wherein a space between the rod-shaped bodies is formed as a fan-shaped passage space, and the holding body holds the porous body .

Images