JP6359289B2 - Foam discharge container - Google Patents

Description

  The present invention relates to a foam discharge container.

  2. Description of the Related Art There is known a foam discharge container in which a content liquid is foamed and discharged from a nozzle portion. For example, Patent Document 1 describes a foam discharge container that discharges the contents contained in the container body from the nozzle head in the form of bubbles by an operation of pressing the pump head (see, for example, Patent Document 1). ). In addition, as another type of container in which the content liquid contained in the container main body is foamed and discharged from the nozzle portion, the content liquid is sent out by pressing the liquid surface with the pressure of air sent into the container main body. There is also known a foam discharge container that is foamed by mixing with air and foaming.

However, in the foam discharge container to be discharged in the form of foam, after the foam discharge is stopped, the foam tends to remain at the tip of the nozzle due to the self-adhesiveness of the foam, so that a large amount of foam or unspecified foam remains. The remaining foam is unsightly, falls and soils the surroundings, and dust and bacteria adhere to the foam, which is not preferable in terms of appearance and hygiene.
Patent Document 1 describes that a foam discharge adapter having a plurality of discharge ports is attached to a nozzle head of a foam discharge container so that bubbles are discharged in a twisted shape. However, the plurality of discharge ports of the bubble discharge adapter are formed in the flat portion, and do not eliminate the remaining bubbles with respect to the nozzle portion.

JP 2010-269233 A

  The present invention relates to a foam discharge container in which foam is unlikely to remain at the tip of a nozzle portion after the foam discharge is stopped.

  The present invention is a foam discharge container provided with a nozzle part through which a foamed liquid content is discharged, the nozzle part having a vertical flow path through which bubbles flow downward from above, the nozzle The outer peripheral surface has a conical tip portion that is tapered downward around the vertical flow path at the lower part of the portion, and the vertical flow path and the outer peripheral surface of the front end portion are provided at the front end portion. The foam discharge container in which the some groove part which connects between is formed is provided.

  According to the foam discharge container of the present invention, it is difficult for foam to remain at the tip of the nozzle part after the foam discharge is stopped, and deterioration of appearance and hygiene due to the foam remaining in the nozzle part can be prevented.

It is a perspective view of the dispenser which attaches and uses the foam discharge container which concerns on preferable one Embodiment of this invention so that attachment or detachment is possible. It is sectional drawing of the foam discharge container which concerns on preferable one Embodiment of this invention. It is a disassembled perspective view of the dispenser main body of a dispenser. It is a perspective view which shows the nozzle part formation member which comprises the nozzle part of the foam discharge container shown in FIG. It is the VV sectional view taken on the line of the nozzle part formation member of FIG. It is the bottom view which looked at the nozzle part formation member of Drawing 4 from the lower part. It is the side view which looked at the nozzle part formation member of FIG. 6 from the arrow A direction in FIG. FIG. 8A to FIG. 8D are explanatory diagrams of the function and effect of the present invention. FIGS. 9A and 9B are diagrams corresponding to FIGS. 8A and 8C in the case of the comparative example of the present invention. Fig.10 (a)-FIG.10 (c) are figures which show the other example of the groove part formed in a nozzle part, and are figures which show a shape when a nozzle part is seen from the side. It is a figure which shows the nozzle part formation member which comprises the nozzle part in other embodiment of this invention, (a) Perspective view, (b) The figure seen from the front end side of the nozzle part, (c) It is a side view. . It is a figure which shows the nozzle part formation member which comprises the nozzle part in other embodiment of this invention, (a) Perspective view, (b) The figure seen from the front end side of the nozzle part, (c) It is a side view. .

The foam discharge container 21 which concerns on preferable one Embodiment of this invention is a foam discharge container which makes a content liquid foam and is discharged from the nozzle part 5. FIG.
As shown in FIG. 1, the foam discharge container 21 of the present embodiment is used by being detachably mounted in a cartridge form on a dispenser main body 11 of a dispenser 10 that is installed and used in a hospital or a nursing facility, for example. It is done. That is, the foam discharge container 21 of the present embodiment constitutes the dispenser 10 together with the dispenser body 11. As shown in FIG. 3, the dispenser 10 is an electric type equipped with an air pump 13 and a control unit 15, and a cleaning agent such as a hand soap is used as the content liquid contained in the container body 22 of the foam discharge container 21. Preferably, it is used as a device that automatically discharges a predetermined amount in the form of bubbles without directly touching the dispenser 10 by simply holding the hand over the sensor unit 20 of the dispenser body 11.

  In the foam discharge container 21 of the present embodiment, the air supplied from the air pump 13 provided in the dispenser body 11 is sent into the container body 22 as compressed air (compressed air) and accommodated in the container body 22. By pressing the liquid surface of the content liquid, the content liquid is sent to the nozzle unit 5 to be discharged. The container body 22 has a double structure including an outer container 29 and a pressurized chamber 30 disposed inside the outer container 29. The outer container 29 and the pressurizing chamber 30 communicate with each other through a circulation port 39 provided with an on-off valve 39a. The air is sent into the pressurizing chamber 30 and presses the liquid level of the content liquid stored therein, thereby sending the content liquid to the nozzle unit 5. Further, when the feeding of air into the pressurizing chamber 30 is stopped, the feeding of the content liquid by the air to the nozzle unit 5 is stopped. The on-off valve 39a blocks the outflow of the content liquid from the inside of the pressurizing chamber 30 to the outer container 29 side or the pressurizing chamber 30 from the outer container 29 side depending on the pressure state by the air inside the pressurizing chamber 30. Is designed to function as a check valve that allows the content liquid to flow into the interior. That is, the on-off valve 39a blocks the flow of the content liquid from the inside to the outer container 29 side in the state where the inside of the pressurizing chamber 30 is pressurized by air sent in, for example. In a state where the pressurization by the internal air is released, it functions as a check valve that allows the content liquid to flow into the inside from the outer container 29 side.

  The foam discharge container 21 of the present embodiment includes a discharge mechanism 23 that sends the content liquid to the nozzle unit 5 and discharges it. The discharge mechanism 23 includes an air supply path (air passage portion 24) to the pressurization chamber 30, a flow path (dip tube 38) of the content liquid from the pressurization chamber 30, and a discharge passage 25 to the nozzle portion 5. Consists of including.

  In the present embodiment, the foam discharge container 21 includes a foam discharge mechanism as the discharge mechanism 23, and the foam discharge mechanism 23 sends the content liquid pressed inside the pressurizing chamber 30 to the mixing chamber 42. At the same time, the air inside the pressurizing chamber 30 is fed into the mixing chamber 42 as mixing air, and the fed content liquid and air are mixed in the mixing chamber 42, and a foaming member provided on the downstream side of the mixing chamber 42. It is made to foam by letting 41a and 41b pass, and to be discharged from the nozzle part 5 as a foam-like content liquid.

As shown in FIGS. 1 and 5, the nozzle unit 5 of the foam discharge container 21 of the present embodiment has a vertical flow channel 51 through which bubbles flow from the upper side to the lower side, and the vertical flow at the lower part of the nozzle unit 5. Around the path 51, an outer peripheral surface 52s has a tapered tip 52 that is tapered downward.
In the nozzle portion 5, a plurality of groove portions 53 that communicate between the vertical flow path 51 and the outer peripheral surface 52 s of the tip portion 52 are formed in the tip portion 52 having a tapered shape. As shown in FIGS. 5 and 7, the groove portion 53 has a bottom portion 53 b above the vertical direction X, while the lower portion in the vertical direction X is open.

  The nozzle unit 5 in the present embodiment will be described in more detail. The nozzle unit 5 has a nozzle unit forming member 50 fixed to the tip of an extended nozzle pipe unit 34 that forms a discharge passage 25 to the nozzle unit 5. Is formed. The nozzle portion forming member 50 has a vertical flow path 51 and a horizontal flow path 57 that intersects the vertical flow path 51 at a substantially right angle, and is fixed so that the vertical flow path 51 coincides with the vertical direction. The nozzle portion 5 is preferably fixed so that the center line 51c of the vertical flow path 51 is perpendicular to the horizontal plane. The term “perpendicular” here includes the case where the center line 51c of the vertical flow path 51 is inclined at an inclination angle of less than 10 ° with respect to the vertical line (line perpendicular to the horizontal plane). It is more preferable that the center line 51c of the path 51 has an inclination angle with respect to the vertical line of less than 5 °, and more preferably an inclination angle with respect to the vertical line of less than 3 °.

The nozzle part forming member 50 has a fitting part 50 a that fits to one end of the extended nozzle pipe part 34, and the discharge passage 25, the horizontal flow path 57, and the vertical flow path 51 communicate with one end of the extended nozzle pipe part 34. To be fixed.
Further, as shown in FIG. 5, the nozzle portion 5 has the above-described tapered tip portion 52 at the lower end portion of the portion having the vertical flow path 51 inside. As for the outer peripheral surface 52s of the tip part 52 of a tapered shape, the longitudinal cross-sectional shape by the plane containing the central axis 51c of the vertical flow path 51 is circular arc shape. As shown in FIG. 5, the longitudinal sectional shape of the outer peripheral surface 52 s may be an outwardly convex arc shape, an outwardly concave arc shape, or a shape such as a straight line or a staircase shape. However, it is preferable that the residual foam shape is not noticeable when the arc shape is convex outward. The cross section perpendicular to the central axis 51c of the vertical channel 51 can be any shape as long as it is a polygon, circle, ellipse, or other axially symmetric shape, but the outer peripheral length is the shortest to prevent bubbles from adhering. A circular shape is preferred.
12 has a tip 52 having a polygonal (hexagonal) cross-sectional shape perpendicular to the central axis 51c of the vertical channel 51.

The nozzle portion 5 of the foam discharge container of the present invention has at least two groove portions 53 at the tip portion 52 with a tapered shape, but the number of groove portions 53 provided at the tip portion 52 with a tapered shape. Is preferably 3 or more, more preferably 4 or more, preferably 8 or less, more preferably 6 or less.
In the nozzle portion 5 according to the present embodiment, five groove portions 53 are formed in the tip portion 52 having a tapered shape, and as shown in FIG. It is formed radially when viewed.
If three or more groove portions 53 are formed radially around the vertical flow path 51, a portion confined to the entire periphery of the bubble after stopping the discharge of the bubble can be formed, and the foam cutting property is further improved.
Although the aspect currently formed radially is not restricted to the case where the groove part 53 is equally formed in the circumferential direction of the vertical flow path 51, the three or more groove parts 53 are the circumferential direction of the vertical flow path 51. It is preferable that they are uniformly formed.

  As shown in FIG. 5, the nozzle portion 5 in the present embodiment includes an upper portion 55 that does not have the groove portion 53 around the vertical flow channel 51 and a periphery of the vertical flow channel 51 as a portion having the vertical flow channel 51 inside. The lower part 56 having the groove part 53 is provided, and the inner diameter d1 of the vertical flow path 51 in the upper part 55 is equal to the inner diameter d2 of the vertical flow path 51 in the lower part 56. The inner diameter d2 of the vertical flow path 51 in the lower portion 56 does not include the groove 53 portion, and as shown in FIG. 6, a portion 54 (hereinafter referred to as “inter-groove portion”) located between the groove portions 53 in the lower portion 56. The diameter of the circle 51a in contact with the inner end portion 54b is defined as the inner diameter d2 of the vertical channel 51 in the lower portion 56. The circle 51a is assumed on the nozzle cross section S orthogonal to the central axis 51c of the vertical flow path 51. As shown in FIG. 5, the vertical flow path 51 of the nozzle unit 5 in the present embodiment has a circular cross-sectional shape, but the vertical flow path 51 has a cross-sectional shape that is an ellipse, a rounded square, or the like. There may be.

It is preferable that the inner diameter d1 of the vertical flow path 51 in the upper portion 55 is equal to the inner diameter d2 of the vertical flow path 51 in the lower portion 56, so that bubbles stay and flow changes in the step portion can be minimized. Here, the expression that the inner diameter d1 is equal to the inner diameter d2 includes the case where the ratio (d1 / d2) of the inner diameter d2 to the inner diameter d1 is 0.8 to 1.2, but the ratio (d1 / d2). ) Is more preferably 0.9 to 1.1, and still more preferably 0.95 to 1.05.
Further, the inner diameter d1 of the vertical flow path 51 in the upper portion 55 minimizes the amount of bubbles remaining inside the nozzle, shortens the time until bubbles are discharged when air is supplied, and improves the response. Therefore, it is desirable to make the flow of bubbles as small as possible so as not to hinder the flow of bubbles due to pressure loss or the like. From such a viewpoint, the inner diameter d1 is preferably 1 mm or more, more preferably 2 mm or more, further preferably 3 mm or more, more preferably 10 mm or less, more preferably 6 mm or less, and still more preferably 5 mm or less. The same applies to the inner diameter d2 of the vertical channel 51 in the lower portion 56.

  It is preferable that the bottom 53b of the groove 53 is inclined so as to descend from the vertical flow path 51 side toward the outer peripheral surface 52s side of the tip 52, or extends in the horizontal direction. More specifically, the inclination angle θ (see FIG. 5) of the bottom 53b of the groove 53 with respect to the horizontal plane S is preferably 0 ° to 60 °, more preferably 0 ° to 45 °, and more preferably 0 ° to 30 °. Is more preferable. When descending, 5 ° or more is preferable.

  The groove 53 has a width W (see FIG. 6) of preferably 1 mm or more, more preferably 2 mm or more, preferably 5 mm or less, more preferably 4 mm or less, and preferably 1 mm or more. It is 5 mm or less, More preferably, it is 2 mm or more and 4 mm or less. Further, the groove portion 53 has a depth t (see FIG. 5) of preferably 1 mm or more, more preferably 2 mm or more, preferably 10 mm or less, more preferably 6 mm or less, and preferably 1 mm. It is 10 mm or less, more preferably 2 mm or more and 6 mm or less.

Moreover, it is preferable that the groove part 53 has the relationship of the width W (refer FIG. 6) and the depth t (refer FIG. 5) of t> = w.
Further, the groove portion in the present invention may have a length L (see FIG. 5) shorter than the width W (see FIG. 6), but the groove portion 53 preferably has a length L longer than the width W.
The nozzle part forming member 50 may be made of a synthetic resin, or may be formed of a metal or other material. Preferably, it is made of synthetic resin, but as synthetic resin for forming the nozzle part forming member, for example, polyolefin such as polyethylene and polypropylene, polystyrene, PET, polycarbonate, acrylic, polyamide, polyacetal, vinyl chloride, etc. may be used. it can.

The foam discharge container 21 of the present embodiment can discharge the liquid content contained in the container main body 22 from the nozzle portion 5 with the air supplied from the dispenser main body 11 in the form of foam.
Then, as shown in FIG. 8A, the foam 6 supplied to the nozzle unit 5 in the form of foam flows through the vertical flow path 51 downward in the vertical direction during foam discharge, When the upper part 55 without the groove part 53 moves to the lower part 56 with the groove part 53 around, a part of the foam 6 diffuses into the groove part 53, and the foam 6 passes through the vertical channel 51 in the upper part 55. It continues to be discharged from the lower end of the nozzle portion 5 with a cross-sectional area larger than the cross-sectional area.
On the other hand, when the supply of the foam to the nozzle part 5 is stopped, the movement of the foam in the vertical flow path 51 is also stopped, and as shown in FIG. The bubble 6 moves downward. Then, after a few seconds after the stop, as shown in FIG. 8C, a weakened portion 61 in which the cross-sectional area of the bubble 6 is reduced is generated in the vicinity of the tip portion 52 having a tapered shape. The part 61 is divided into a vertical part and divided into a part 6 </ b> A collected on the palm or the like and a part remaining in the vicinity of the tip part 52 of the nozzle part 5.
As described above, in the foam discharge container 21 of the present embodiment, after the foam discharge is stopped, the fragile portion 61 having a small cross-sectional area is generated in the vicinity of the tip portion 52 of the nozzle portion 5 and is cut in the vicinity of the tip portion 52. Cheap. Therefore, according to the foam discharge container 21 of the present embodiment, it is difficult for the foam to remain at the tip of the nozzle part after the foam discharge is stopped, and it is possible to prevent deterioration in appearance and hygiene due to the foam remaining in the nozzle part. Moreover, even if the bubbles 6B remain slightly attached to the tip of the nozzle portion 5, the bubbles 6B are also easily taken into the groove 53 as shown in FIG. Therefore, it is possible to more reliably prevent the appearance and hygiene from being deteriorated due to the foam remaining at the tip of the nozzle portion.

9 is similar to the case shown in FIG. 8 except that the nozzle portion 5A having no groove portion is used for the tapered tip portion 52, and the liquid content contained in the container body is made into a foam. It is a figure which shows the case where it discharges from the nozzle part 5A.
In that case, when the content liquid is made into a foam and supplied to the nozzle portion 5A, the foam 6 has a cross-sectional area similar to the cross-sectional area of the vertical channel 51, as shown in FIG. It is discharged from the lower end of the nozzle portion 5A. And if supply of the bubble to 5 A of nozzle parts is stopped, as shown in FIG.9 (b), even if several seconds after a stop, the bubble 6 as mentioned above will not arise in the bubble 6. FIG.
Therefore, the foam 6 discharged from the nozzle portion 5A is divided in the vertical direction at random positions as indicated by P1 to P3 in FIG. 9B. Therefore, the amount of the foam 6 remaining at the tip of the nozzle portion 5A is reduced when it is split up and down at the position of P1, but when it is split up and down at the position of P2 and P3, for example, it is above the split portion. A part will remain in the state which hung down from the nozzle 5A, and the appearance will be deteriorated by the remaining foam, or the foam may drop and give an unsanitary impression.

As shown in FIG. 7, the groove portion 53 in the present embodiment has an inverted U shape when the nozzle portion 5 is viewed from the side, and toward the upper end of the vertical direction X toward the upper side of the nozzle portion 5. and a bottom portion 53 b of the convex shape.
As described above, when the bottom 53 b of the groove 53 has a convex shape toward the upper side of the nozzle portion 5, the top portion of the bottom portion having a convex shape toward the upper side is used as a base point after the discharge of bubbles is stopped. As described above, the fragile portion 61 described above is easily formed in the vicinity of the tip portion 52 of the nozzle portion 5, and the effect of preventing foam residue is further improved.
Bottom 53 b of the groove 53 shown in FIG. 7 has a semi-circular arc shape curved convexly upward, on both sides of the bottom portion 53 b, two parallel side surfaces 53 a, 53 a are formed to each other ing.

FIG. 10A and FIG. 10B show another example of the groove portion 53 that has a bottom portion 53 b that has a convex shape toward the upper side and that also exhibits an excellent foam remaining prevention effect. On the other hand, the groove 53 shown in FIG. 10 (c), has a flat bottom 53 b, having no bottom portion of the convex shape upward.

  In the foam discharge container of the present invention, there is no particular limitation on the mechanism in which the contents in the container are foamed and sent to the nozzle portion. However, in the foam discharge container 21 of the present embodiment, as shown in FIGS. In addition, the foam discharge container 21 is mounted on a dispenser body 11 having an air supply mechanism that is detachably mounted, and air is supplied to the foam discharge container 21 by the dispenser body 11 so that the content liquid in the container body 22 is obtained. Is configured to be sent to the nozzle unit 5 in the form of foam. The foam discharge container 21 of this embodiment constitutes the dispenser 10 together with the dispenser body 11.

Hereinafter, the dispenser main body 11 which comprises the dispenser 10 with the foam discharge container 21 of this embodiment, and its dispenser 10 are demonstrated.
As shown in FIGS. 1-3, the dispenser main body 11 is equipped with the air pump 13 (refer FIG. 3), the air supply piping 14, and the control part 15 (refer FIG. 2) as an air supply mechanism. . The foam discharge container 21 includes a container main body 22 and a discharge mechanism 23 attached to the mouth portion 22a (see FIG. 2) of the container main body 22. As shown in FIG. 3, the discharge mechanism 23 communicates with an air supply pipe 14 (see FIG. 1) of the dispenser main body 11, an air passage portion 24 that sends the supplied air into the container main body 22, and a container main body. 22 is provided with a discharge passage portion 25 for sending the content liquid pressed by the pressure air inside the nozzle portion 5 to the nozzle portion 5. The air passage portion 24 is provided with an exhaust valve 27 that degass the internal pressure air from the air passage portion 24 to the outside air when the supply of air from the air pump 13 is stopped.

  The dispenser main body 11 which comprises the dispenser 10 with the foam discharge container 21 of this embodiment is a part used as the principal part of the dispenser 10. FIG. As shown in FIGS. 1 and 3, the dispenser body 11 has an air supply mechanism for attaching the foam discharge container 21 to the holder 12 so as to be attachable and detachable and supplying air to the foam discharge container 21 as pressurized air. An air pump 13 is provided. The dispenser main body 11 is attached to a base portion 16 in which an air pump 13 and the like are disposed, a support column portion 17 provided to stand vertically upward from a peripheral portion of the base device portion 16, and the support column portion 17. The connecting joint portion 18 and the neck holder portion 19 are included.

  In this embodiment, the base portion 16 has a hollow, flat, and substantially cylindrical shape in which the upper and lower opening surfaces are covered by the top plate 16a and the bottom plate 16b. Inside the hollow portion of the base portion 16, an air pump 13, a driving device 13a thereof, a control board as the control portion 15 of the air supply mechanism, and the like are disposed. The control unit 15 incorporates a control circuit, a signal processing circuit, and the like, and controls driving of the air pump 13 by the driving device 13a. The bottom plate 16b of the base portion 16 is formed with a battery box 16c for storing batteries in a replaceable manner. An upright sleeve 16 d for erecting the support column 17 is provided on the peripheral portion of the top plate 16 a of the base unit 16. The standing sleeve 16 d protrudes upward from the top plate 16 a and is provided in communication with the air pump 13. By inserting and fixing the lower end portion of the column portion 17 to the standing sleeve 16d in a state where the outer peripheral surface thereof is airtightly adhered to the inner peripheral surface, the column portion 17 stands vertically upward from the top plate 16a. Can be installed. A flat upper surface of the top plate 16a of the base portion 16 other than the portion from which the standing sleeve 16d projects forms a holder portion 12 that holds the foam discharge container 21 in a detachable manner together with the neck holder portion 19.

  In addition, the battery accommodated in the battery box 16c can use a rechargeable battery other than a dry battery. The air supply mechanism may be of a type that obtains electric power by connecting to an outlet.

  Further, in the present embodiment, the sensor unit 20 is provided so as to protrude outward from the outer peripheral surface of the region of the base unit 16 that is radially opposed to the portion where the standing sleeve 16d protrudes. The sensor unit 20 is a substantially bottomed cylindrical portion that opens upward, and a sensor 20a is disposed therein. As the sensor 20a, for example, various known sensors known as human sensors such as a pyroelectric sensor, a sensor including an infrared light emitting diode and an infrared light receiving diode, and the like can be used. The sensor 20 a is connected to a control board or the like as the control unit 15 provided in the base unit 16. The control unit 15 receives a signal detected by the sensor 20a when a human body such as a hand or arm or an object such as a sponge or a brush is held over the sensor 20a, and starts driving the air pump 13 by the driving device 13a. So that it can be controlled. The control board includes an integrated circuit, electronic components such as resistors, wiring, and the like provided on the board, and is electrically connected to the battery, the air pump 13, the sensor 20a, and the like. When the voltage drops, the control unit 15 blinks an LED provided so that it can be visually recognized from the outside in order to promote battery replacement, or when the power switch is turned on or the operation for discharging a predetermined amount of liquid is finished. Sometimes it is possible to set a dead time in which a signal input from the sensor 20a is not accepted for a certain period of time.

  The support | pillar part 17 consists of a hollow pipe-shaped member. The support column 17 together with the connection joint 18 attached to the upper end portion forms an air supply pipe 14 of an air supply mechanism that feeds air supplied from the air pump 13 into the air passage 24 of the foam discharge container 21. . As described above, the support column portion 17 is vertically fixed from the peripheral portion of the top plate 16a by inserting and fixing the lower end portion thereof in close contact with the standing sleeve 16d protruding from the top plate 16a. It is attached to the base part 16. A neck holder portion 19 is attached to the upper middle portion of the column portion 17 while being supported by the column portion 17. A connection joint portion 18 is attached to the upper end portion of the column portion 17 in a close contact state.

  Note that it is not always necessary that the support column 17 is attached to the standing sleeve 16d and the connection joint unit 18 in close contact with the lower end and the upper end thereof so that the support column 17 itself becomes the air supply pipe 14. Even if the lower end portion and the upper end portion of the support column 17 are not attached to the standing sleeve 16d and the connection joint portion 18 in close contact with each other, for example, the air pump 13 and the connection joint portion 18 communicate with each other inside the hollow. A tube member (not shown) may be provided to form the air supply pipe 14.

  The neck holder portion 19 is a member provided by projecting an overhanging plate portion 19 a from the support column portion 17 to the inside in the radial direction of the base portion 16. The neck holder portion 19 includes an attachment base portion 19b and an overhang plate portion 19a. The overhang plate portion 19a is provided so as to be bent vertically from the upper end portion of the mounting base portion 19b. The attachment base portion 19b includes a sandwiching surface portion 19c that is a semicircular curved surface having an inner diameter similar to the outer diameter of the support column portion 17, and a pair of joining flange portions 19d. The joint flange portion 19d is provided so as to protrude laterally from both side edge portions of the sandwiching surface portion 19c. The neck holder portion 19 is attached by projecting an overhanging plate portion 19a at a predetermined height position of the column portion 17 using an auxiliary fixing member 19g having a shape substantially similar to that of the attachment base portion 19b. That is, the auxiliary fixing member 19g protrudes laterally from the opposing sandwiching surface portion 19e that is a semicircular curved surface having an inner diameter similar to the outer diameter of the support column portion 17, and both side edges of the opposing sandwiching surface portion 19e. And a pair of opposed joint flange portions 19f provided. A pair of joint flange portions 19d and a pair of opposing joint flanges with the support column portion 17 sandwiched between the sandwiching surface portion 19c of the attachment base portion 19b of the neck holder portion 19 and the opposing sandwiching surface portion 19e of the auxiliary fixing member 19g. By joining the portions 19f, the neck holder portion 19 is attached to the column portion 17 at a predetermined height position by overhanging the overhanging plate portion 19a.

  The overhanging plate portion 19 a is a plate-like portion that protrudes from the support column portion 17 inward of the base portion 16 in a cantilever shape. As shown in FIG. 3, the overhanging plate portion 19a is formed with a neck mounting incision 19h by being cut out in a concave shape from the side portion on the overhanging tip side toward the mounting base portion 19b. The neck portion mounting cut 19h has an arc-shaped portion 19i at a portion on the mounting base portion 19b side. The arc-shaped portion 19i has an arc shape that is slightly larger than the outer diameter of the upper neck portion 29d of the outer container mouth portion 29e, which will be described later, of the container body 22 of the foam discharge container 21 and has an inner diameter substantially the same as this. ing. The arc-shaped portion 19i is formed with a circumferential length exceeding a semicircle, and is connected to a mounting introduction portion 19j that extends in a tapered shape at a portion on the protruding tip side.

  In the present embodiment, as shown in FIG. 2, the foam discharge container 21 includes an annular locking rib 29 f, which will be described later, provided on the upper neck part 29 d of the outer container mouth part 29 e of the container body 22, and an upper stage neck part. An annular locking groove 29h is formed in a portion between 29d and a combo cap 31 described later. As shown in FIG. 1, the bottom portion of the container body 22 is placed on the top surface of the top plate 16a of the base portion 16, and the portion of the annular locking groove 29h is pushed into the neck mounting cut 19h of the overhang plate portion 19a. The foam discharge container 21 is detachably mounted on the dispenser body 11 by locking the peripheral edge of the arc-shaped portion 19i in the annular locking groove 29h. That is, the top plate 16a of the base portion 16 and the neck holder portion 19 form a holder portion 12 for attaching the foam discharge container 21 to the dispenser body 11 so as to be detachable and replaceable.

  The connection joint portion 18 changes the longitudinal flow path of the air supply pipe 14 by the support column portion 17 in the lateral direction, and connects a communication sleeve portion 35 to be described later that forms the air passage portion 24 of the foam discharge container 21. It is a hollow member to be made. The connection joint portion 18 includes a column-shaped column-side connection portion 18a having a cylindrical shape, and a cylindrical container-side connection portion 18b provided to project radially inward from the outer peripheral surface of the column-side connection portion 18a. It consists of. The strut-side connecting portion 18 a has an inner diameter similar to the outer diameter of the strut portion 17, and the inner peripheral surface of the strut-side connection portion 18 a is in close contact with the outer peripheral surface of the strut portion 17 in the airtight state. Mounted and fixed. The container-side connection portion 18b has an inner diameter that is slightly larger than the outer diameter of the communication sleeve portion 35 of the foam discharge container 21 and substantially the same as this. A known sealing member such as an O-ring is disposed inside the container side connecting portion 18b. When the foam discharge container 21 is attached to the dispenser main body 11 via the holder part 12 by the top plate 16a of the base part 16 and the neck holder part 19, the distal end portion of the communication sleeve part 35 of the foam discharge container 21 is It inserts in the container side connection part 18b so that attachment or detachment is possible. Thereby, the air supply pipe 14 by the connection joint part 18 and the support | pillar part 17 and the air channel | path 24 of the foam discharge container 21 will communicate airtightly.

  And the foam discharge container 21 of this embodiment which comprises the dispenser 10 with the dispenser main body 11 becomes a cartridge type container which accommodated cleaning agents, such as a hand soap, as a content liquid, and it can attach or detach and replace with the dispenser main body 11. Used by mounting. As shown in FIG. 2, the foam discharge container 21 includes a container main body 22 and a discharge mechanism 23 attached to the mouth portion 22 a of the container main body 22.

  In the present embodiment, the container body 22 has a double structure in which the pressurized chamber 30 is disposed as an inner container inside the outer container 29. The discharge mechanism (foam discharge mechanism) 23 discharges the content liquid sent out from the pressurization chamber 30 of the container main body 22 to the nozzle unit 5 through the discharge passage 25 in a state of being mixed with air and foamed. Has a former function. The gas-liquid ratio (the former: latter) of the air and the content liquid mixed and foamed by the discharge mechanism 23 having the former function is preferably 5: 1 or more, more preferably 10: 1 or more. In the present embodiment, the dispenser body 11 is electrically operated, so that the content liquid foamed to a high gas-liquid ratio can be continuously discharged in a large amount. When the dispenser body 11 is electrically operated, the gas-liquid ratio (the former: latter) of the mixed air and the content liquid is preferably 10: 1 or more, more preferably from the viewpoint of foam quality, foam amount or economy. Is 15: 1 or more, particularly preferably 20: 1 or more, preferably 100: 1 or less, more preferably 60: 1 or less. In addition, the bubble 6 shown in FIG. 8, FIG. 9 was observed in the state which made the gas-liquid ratio of air and content liquid 30: 1.

  In the present embodiment, the outer container 29 of the container body 22 is a bottle-shaped blow-molded product made of, for example, a synthetic resin, and is continuous with a bottomed body part 29a that stores the content liquid and an upper end part of the body part 29a. A curved dome-shaped shoulder portion 29b, and an outer container neck portion 29e provided so as to protrude upward from the upper end portion of the shoulder portion 29b. The outer container neck portion 29e includes a lower neck portion 29c and an upper neck portion 29d. On the upper neck portion 29d of the outer container neck portion 29e, an annular locking rib 29f is formed on the base end side adjacent to the lower neck portion 29c. The annular locking rib 29f projects outward and is provided continuously in the circumferential direction. . A male thread ridge 29g is formed on the upper portion of the upper neck portion 29d above the annular locking rib 29f. A combo cap 31 having a female threaded ridge 31a formed on the inner peripheral surface of the peripheral wall for fixing the pressurizing chamber 30 to the outer container 29 is provided on the upper neck part 29d formed with the male threaded ridge 29g. Fastened. With the combo cap 31 fastened to the upper neck portion 29d, the neck mounting cut 19h of the neck holder portion 19 is locked at a portion between the annular locking rib 29f and the lower end of the combo cap 31. An annular locking groove 29h is formed.

  The pressurizing chamber 30 of the container body 22 is an injection molded product made of, for example, a synthetic resin. The pressurizing chamber 30 has an elongated, hollow, substantially cylindrical shape that gradually increases in diameter from the bottomed bottom end. The pressurizing chamber 30 has an outer diameter that can be inserted inside the outer container neck portion 29e. The pressurizing chamber 30 is preferably arranged up to the vicinity of the bottom of the outer container 29. Specifically, the pressurizing chamber 30 is formed to have a length extending from the vicinity of the bottom of the outer container 29 through the outer container neck part 29e to the upper part of the upper stage neck part 29d. The upper end portion of the pressurizing chamber 30 is a portion that becomes the mouth portion 22 a of the container body 22. An annular mounting rib 30a is formed at a boundary portion of the pressurizing chamber 30 with the upper end portion serving as the mouth portion 22a, and projects outward and continues in the circumferential direction. In the annular mounting rib 30a, grooves that extend from the inner peripheral edge to the outer peripheral edge are formed on the upper surface and the lower surface. The annular mounting rib 30a is placed on the upper end surface of the upper neck portion 29d of the outer container mouth portion 29e with an O-ring combo cap seal 40a interposed therebetween, and these are placed on the upper end surface of the upper neck portion 29d and the upper end surface of the upper neck portion 29d. The combo cap 31 is fastened to the upper neck part 29d while being sandwiched between the cap 31 and the annular top plate 31b.

  As a result, the pressurizing chamber 30 is fixed integrally to the outer container 29 in a state of being hung from the outer container neck portion 29e to the inside of the trunk portion 29a. Further, by this, the upper end portion of the pressurizing chamber 30 that becomes the mouth portion 22a of the container body 22 is cylindrically shaped above the annular top plate 31b via the opening region inside the annular top plate 31b of the combo cap 31. It protrudes and is arranged. An external thread 22b is formed on the outer peripheral surface of the mouth part 22a by the upper end portion of the pressurizing chamber 30. The nozzle cap portion 32 having the female screw protrusion 32b formed on the inner peripheral surface of the peripheral wall portion is fastened to the mouth portion 22a having the male screw protrusion 22b. 22 is attached as a unit.

  In the state where the combo cap 31 is fastened to the upper neck part 29d and the pressurizing chamber 30 is fixed to the outer container neck part 29e, the inner peripheral part of the combo cap seal 40a and the outer peripheral surface of the pressurizing chamber 30 are By interposing the gap between them and the above-mentioned grooves formed on the upper and lower surfaces of the annular mounting rib 30a, the inside of the outer container 29 maintained water-stopping properties so that the liquid contents did not leak but air could be sucked in. In a state, it becomes possible to communicate with the outside air. Accordingly, it is possible to effectively avoid that the liquid supply from the outer container 29 to the pressurizing chamber 30 is hindered due to the negative pressure inside the outer container 29.

  Furthermore, in the present embodiment, a circulation port 39 that communicates the outer container 29 and the pressurized chamber 30 is formed at the bottom of the pressurized chamber 30. The flow port 39 is preferably provided with a float valve as the on-off valve 39a. The on-off valve 39a blocks the flow of the content liquid from the inside to the outer container 29 side through the circulation port 39 in a state where the inside of the pressurizing chamber 30 is pressurized by air sent in, for example. In a state where the pressurization by the air inside the chamber 30 is released, it functions as a check valve that allows the content liquid to flow into the inside from the outer container 29 side through the circulation port 39.

  The float valve used as the on-off valve 39a is preferably as large as possible so that the replenishment of the internal solution to the pressurization chamber 30 is completed in a short time when the flow port 39 is lifted and the flow port 39 is opened. Further, it is preferable that the flow opening 39 can be opened as much as possible when ascending. The float valve can be formed by using a material having a large specific gravity difference from the content liquid to make the valve body float easily. For example, the buoyancy can be further increased by making the inside of the valve body hollow. . The float valve can be operated in the most stable state by making the valve body into a spherical shape. By making the valve body shape of the float valve into a flat valve body, the remaining amount of the content liquid remaining near the bottom of the pressurizing chamber 30 can be reduced.

  The pressurizing chamber 30 is a cylinder having a circular cross section in which the internal pressure is less concentrated so that the amount of resin used can be reduced, the cost can be reduced, and the rigidity that does not deform with respect to the internal pressure can be obtained efficiently. It is preferable to form in a shape. The pressurizing chamber 30 preferably has a length that reaches the bottom of the outer container 29 so that the content liquid remaining at the bottom of the outer container 29 can be used efficiently. It is preferable to provide at the bottom of the pressure chamber 30. It is preferable that a dip tube 38 to be described later disposed inside the pressurized chamber 30 has a length that reaches the vicinity of the bottom of the pressurized chamber 30.

  In the present embodiment, the pressurizing chamber 30 has a cylindrical shape or a substantially cylindrical shape with an inner diameter of, for example, about 3 to 30 mm, preferably about 4 to 25 mm, and more preferably about 5 to 20 mm, for example, 50 to 150 mm. The length is preferably about 100 to 145 mm. Moreover, it is preferable that the space | interval of about 0.5-1 mm is hold | maintained between the internal peripheral surface of the pressurization chamber 30, and the dip tube 38, Between the bottom face of the pressurization chamber 30, and a dip tube. Is preferably maintained at a distance of about 1 to 2 mm. Moreover, in this embodiment, polyolefin, such as polyethylene and polypropylene, polystyrene, PET, polycarbonate, acrylic, polyamide, polyacetal, vinyl chloride, and the like can be preferably used as the synthetic resin for forming the pressure chamber 30.

  In the present embodiment, the discharge mechanism 23 attached to the mouth portion 22a of the container body 22 includes the air supply path (air passage portion 24) to the pressurization chamber 30 and the content from the pressurization chamber 30 as described above. A liquid flow path (dip tube 38) and a discharge passage 25 to the nozzle portion 5 are included. Specifically, the discharge mechanism 23 protrudes from the nozzle cap portion 32, the longitudinal flow path pipe portion 33 provided vertically through the top plate 32 a of the nozzle cap portion 32, and the communication base portion 36. The communication sleeve part 35 provided and the dip tube 38 are comprised. In the present embodiment, the communication base 36 has a substantially cylindrical shape, and is integrally formed above the top plate 32 a of the nozzle cap 32.

  In the present embodiment, the discharge mechanism 23 is a bubble discharge mechanism as described above. That is, the foam discharge mechanism 23 includes a nozzle cap portion 32, a longitudinal channel pipe portion 33, an extension nozzle pipe portion 34, a communication sleeve portion 35, a former joint 37, and a dip tube 38. Has been. The vertical flow path pipe portion 33 is provided so as to vertically penetrate the top plate 32 a of the nozzle cap portion 32. The extension nozzle pipe portion 34 communicates with the upper end portion of the longitudinal channel pipe portion 33 inside the communication base portion 36, and is provided so as to extend in the lateral direction passing above the nozzle cap portion 32. A nozzle portion 5 is provided at the tip portion. The communication sleeve portion 35 is provided so as to protrude from the communication base portion 36 to the side opposite to the extension nozzle pipe portion 34. The former joint 37 is attached so as to cover the lower end opening of the longitudinal channel pipe portion 33. The dip tube 38 has an upper end attached to the former joint 37 and extends to the vicinity of the bottom of the pressurizing chamber 30.

  The nozzle cap portion 32 includes a circular top plate 32a and a peripheral wall portion extending downward from the peripheral portion of the top plate 32a. A female thread protrusion 32b is formed on the inner peripheral surface of the peripheral wall portion. A male thread ridge 22b is formed on the outer peripheral surface with an O-ring-shaped nozzle cap seal 40b interposed between the upper end surface of the mouth portion 22a of the container body 22 and the top surface plate 32a of the nozzle cap portion 32. The nozzle cap part 32 is fastened to the closed mouth part 22a. As a result, the discharge mechanism 23 is attached to the container body 22 as a single unit while maintaining a strong water-stopping property with the pressurizing chamber 30.

  The longitudinal flow path pipe portion 33 is a portion having a cylindrical pipe shape that extends downward from the communication base portion 36 through the top plate 32a. The longitudinal channel pipe portion 33 has an outer diameter smaller than the inner diameter of the mouth portion 22 a formed by the upper end portion of the pressurizing chamber 30 and is disposed concentrically with the peripheral wall portion of the nozzle cap portion 32. . Thus, the air pump 13 of the dispenser main body 11 is interposed between the outer peripheral surface of the longitudinal channel pipe portion 33 and the inner peripheral surface of the pressurizing chamber 30 with the foam discharge mechanism 23 attached to the container main body 22. The air passage portion 24 through which the air fed from the air through the communication sleeve portion 35 can flow is held. An inlet-side foam member 41 a made of, for example, a mesh member or a porous member is attached and fixed to the lower end portion of the vertical flow path pipe portion 33.

  As described above, the extension nozzle pipe portion 34 communicates with the upper end portion of the longitudinal flow passage pipe portion 33 inside the communication base portion 36 and extends above the nozzle cap portion 32 in the lateral direction. This is a portion having an elongated cylindrical pipe shape. In the present embodiment, the extension nozzle pipe portion 34 is provided so as to extend in a direction parallel to the bottom surface of the container main body 22 so as to extend beyond the outer peripheral surface of the container main body 22 by the outer container 29. . A portion that is bent obliquely below the tip of the extended nozzle pipe portion 34 is a nozzle portion 5 that discharges the foamed content liquid. The tip of the nozzle portion 5 is disposed beyond the outer peripheral surface of the outer container 29 of the container body 22 at a predetermined distance from the outer peripheral surface. The distance (the radial direction of the outer container 29) between the tip of the nozzle unit 5 and the outer peripheral surface of the outer container 29 is preferably 10 mm to 100 mm. Thus, the user of the dispenser 10 can easily receive the foam-like content liquid in the palm of the hand without touching the dispenser 10 below the nozzle portion. An outlet-side foam member 41b made of, for example, a mesh member or a porous member is attached and fixed inside the distal end portion of the extension nozzle pipe portion 34 adjacent to the nozzle portion 5.

  The longitudinal channel pipe part 33, the extension nozzle pipe part 34, and the dip tube 38 that communicate with each other inside the communication base part 36 are nozzles for the content liquid pressed by the pressurized air inside the pressurized chamber 30 of the container body 22. A discharge passage portion 25 is formed to be sent to the portion 5.

  The former joint 37 includes a former part 37a and a joint part 37b. The former portion 37 a includes a cylindrical portion that is fitted into the lower end portion of the longitudinal channel pipe portion 33. The inside of the cylindrical portion is a mixing chamber 42 for mixing the content liquid and air. At the upper end portion of the mixing chamber 42, an inlet side foam member 41a made of, for example, a mesh member or a porous member is mounted and fixed at the lower end portion of the longitudinal channel pipe portion 33. Further, a guide rod portion 37c for alignment is provided extending downward and supported from the inner peripheral surface of the lower end portion of the cylindrical portion of the former portion 37a. The guide rod part 37c is inserted and arranged inside the small-diameter cylindrical part 37e of the joint part 37b to facilitate the alignment of the joint part 37b.

  The joint portion 37b of the former joint 37 is continuously provided below the large-diameter cylindrical portion 37d via a stepped portion and a large-diameter cylindrical portion 37d having an inner diameter similar to the outer diameter of the longitudinal channel pipe portion 33. A casing portion 37g having a smaller diameter than the small-diameter cylindrical portion 37e, which is further provided continuously below the small-diameter cylindrical portion 37e, and preferably includes a ball valve body 37f. It has been.

Joint portion 37b, while inserting the guide rod portion 37c of the former portion 37a to the small-diameter cylindrical portion 37e, by fitting the large diameter cylindrical portion 37 d at the lower end portion of the longitudinal passage pipes 33, longitudinal It is attached to the flow path pipe part 33. That is, the large-diameter cylindrical portion 37 d, by fitting from the lower side so as to contact the inner circumferential surface of which the outer peripheral surface of the longitudinal passage pipes 33, the joint portion 37b is longitudinally passage pipe portion It is attached to the lower end portion of 33. The inner circumferential surface of the large-diameter cylindrical-shaped portion 37 d, in the vertical direction and extends linearly, the air circulation groove are cutout formed. When the inside of the pressurizing chamber 30 of the container body 22 is pressurized by pressurized air, the air inside the pressurizing chamber 30 is used as mixing air via the air circulation groove on the inner peripheral surface. 42 can be sent.

  An upper end portion of the dip tube 38 is fitted into a small-diameter casing portion 37g continuously provided below the small-diameter cylindrical portion 37e so that the inner peripheral surface is in close contact with the outer peripheral surface thereof. The dip tube 38 is made of a flexible synthetic resin pipe member, and is provided so as to extend from the casing portion 37 g to the vicinity of the bottom of the pressurizing chamber 30. When the inside of the pressurizing chamber 30 of the container body 22 is pressurized by pressurized air, the liquid level of the internal content liquid is pressed, so that the content liquid is discharged from the bottom of the pressurizing chamber 30 and the dip tube 38 and It can be fed into the mixing chamber 42 via the casing part 37g.

  In this embodiment, the communication sleeve portion 35 is provided so as to protrude from the communication base portion 36 of the discharge mechanism 23 to the opposite side of the extension nozzle pipe portion 34. The communication sleeve portion 35 is a cylindrical portion having an outer diameter substantially the same as the inner diameter of the container side connection portion 18 b of the connection joint portion 18 of the dispenser body 11. The hollow interior of the communication sleeve portion 35 forms an air passage portion 24 that feeds air supplied from the dispenser body 11 into the pressurized chamber 30 of the container body 22. At the tip of the communication sleeve portion 35 on the dispenser main body 11 side, a communication port 24a of the air passage portion 24 with the air supply pipe 14 of the dispenser main body 11 is opened.

  On the outer peripheral surface of the distal end portion of the communication sleeve portion 35, a notch recess 35a extending continuously in the circumferential direction is formed. An O-ring-shaped communication part seal 40c is attached to the notch recess 35a. When the foam discharge container 21 is attached to the dispenser main body 11 while the distal end portion of the communication sleeve portion 35 is inserted inside the container side connection portion 18b of the connection joint portion 18, the outer peripheral surface of the communication sleeve portion 35 is connected to the communication portion. It is made to contact | adhere to the inner peripheral surface of the container side connection part 18b through the seal | sticker 40c. Thereby, the air supply pipe 14 of the dispenser body 11 and the air passage portion 24 of the foam discharge container 21 can be communicated in an airtight manner.

  In the present embodiment, the backflow prevention valve 28 is provided in a portion of the communication sleeve portion 35 adjacent to the communication port 24a in the hollow interior so as to be supported by the step locking portion 35b. The backflow prevention valve 28 allows the air supplied from the dispenser main body 11 to pass, and the liquid and air from the pressurized chamber 30 to the outside of the dispenser main body 11 and the container main body 22 through the air passage portion 24. It has a function to block outflow.

  Furthermore, in the present embodiment, the air passage portion 24 inside the communication sleeve portion 35 is connected to the longitudinal flow passage pipe portion 33 by way of the bent passage portion 24c bent downward at the communication base portion 36. The air passage portion 24 held between the outer peripheral surface and the inner peripheral surface of the pressurizing chamber 30 communicates integrally. In the present embodiment, the air passage portion 24 in the communication base portion 36 is disposed immediately above the bent passage portion 24 c, and the deaeration hole 24 b is formed to open to the top surface of the communication base portion 36. ing. An exhaust valve 27 is provided in the deaeration hole 24b. When the supply of air sent from the air pump 13 of the dispenser main body 11 is stopped, the exhaust valve 27 deaerates the pressure air inside the air passage portion 24 from the air passage portion 24 to the outside air. The exhaust valve 27 includes various known valve bodies (duck bill valves, umbrella valves, pressure control valves, etc.), cloth with waterproof breathability such as Gore-Tex (registered trademark), and exhaust valves made of porous materials. Can be used. The exhaust valve 27 may be a mechanism that presses and exhausts an installed exhaust valve using a solenoid, a servo mechanism, or the like that is operated by an electric signal. The exhaust valve 27 also functions as a pressure regulating valve when supplying air, and the pressure in the pressurizing chamber 30 is suitable for foaming (preferably 3 KPa or more and 20 KPa or less, more preferably 6 KPa or more and 15 KPa or less, most preferably 8 KPa or more. 12 KPa or less).

  The dispenser 10 in which the foam discharge container 21 of the present embodiment having the above-described configuration is mounted on the dispenser main body 11 is installed and used in, for example, a hospital or a nursing facility. The user preferably does not directly touch the dispenser 10 with his / her hand, for example, by simply holding his / her hand over the sensor unit 20, and the liquid is automatically discharged in the form of foam and received by the palm or the like for use. it can. That is, when a user holds a human body or an object over the sensor unit 20, the sensor 20 a detects it and sends a detection signal to the control unit 15. Upon receiving the signal from the sensor 20a, the control unit 15 drives the driving device 13a for a predetermined time so that a predetermined amount of the content liquid is foamed and ejected from the nozzle unit 5, and then air is supplied from the air pump 13. The pressure is supplied to the pressure chamber 30 of the container body 22 of the foam discharge container 21 as pressurized air.

When the air supplied from the air pump 13 of the dispenser main body 11 is sent in, the pressure inside the pressurizing chamber 30 rises, and the liquid level of the content liquid inside the pressurizing chamber 30 by the pressurized air due to the increased pressure. Is pressed. As a result, the content liquid is fed into the mixing chamber 42 via the dip tube 38 and the casing portion 37g . Further, the pressure air inside the pressurizing chamber 30 is sent to the mixing chamber 42 as mixing air through the air circulation groove on the inner peripheral surface of the large-diameter cylindrical portion 37 d of the former joint 37. The liquid and air sent to the mixing chamber 42 are mixed in the mixing chamber 42 and pass through the inlet side foaming member 41a and the outlet side foaming member 41b when being sent to the nozzle part 5 through the discharge passage 25. By doing so, it foams and is discharged from the nozzle part 5 as a foam-like content liquid. In addition, while the air continues to be sent from the air pump 13 to the pressurizing chamber 30 for a predetermined time controlled by the control unit 15, a slight amount of air is continuously exhausted from the exhaust valve 27 provided in the air passage unit 24. become.

  After air is sent from the air pump 13 to the pressurizing chamber 30 for a predetermined time, the drive of the air pump 13 is stopped by the control from the control unit 15 and the supply of air is stopped. When the supply of air is stopped, the increased pressure inside the pressurizing chamber 30 is quickly reduced by exhausting the pressurized air (air) from the exhaust valve 27, and the discharge of bubbles is stopped immediately. By the exhaust from the exhaust valve 27, the pressurization state by the air inside the pressurization chamber 30 is released. For example, when the interior of the pressurization chamber 30 approaches atmospheric pressure, the open / close valve provided at the bottom of the pressurization chamber 30 39 a is opened, and the content liquid flows into the pressurized chamber 30 through the circulation port 39. The content liquid flows into the pressurized chamber 30 from the outer container 29 side until the liquid level inside the outer container 29 and the liquid level inside the pressurized chamber 30 reach the same level. It should be noted that when the pressurized state in which the inflow of the content liquid is permitted by the on-off valve 39a is released, the pressure inside the pressurizing chamber 30 does not need to return to the pressure state before pressurization with air.

  As a result, the electric dispenser 10 can discharge the content liquid in a foamed state in a stable state at a constant discharge amount for a predetermined time controlled by the control unit 15.

  And according to the foam discharge container 21 of this embodiment provided with the above-mentioned structure, the inside of the container main body 22 has a simple structure in which the pressurizing chamber 30 provided with the on-off valve 39a is disposed inside the outer container 29. Even if the remaining amount of the content liquid is low, it is possible to effectively prevent the discharge of the content liquid from being delayed so that it does not take too long from the start of air supply until the internal pressure rises. It becomes possible. In addition, even when the content liquid is mixed with air and discharged in the form of bubbles, it is possible to effectively suppress changes in the foam quality.

  That is, according to the foam discharge container 21 of the present embodiment, the container body 22 has a double structure including the outer container 29 and the pressurizing chamber 30, and the air supplied from the air pump 13 is pressurized. The content liquid is sent out to the nozzle unit 5 by pressing the liquid level of the content liquid sent into the chamber 30 and stored inside. Further, the open / close valve 39a blocks the flow of the content liquid from the inside to the outer container 29 side in a state where the inside of the pressurizing chamber 30 is pressurized, and the pressurization inside the pressurizing chamber 30 is released. In this state, the content liquid is allowed to flow into the inside from the outer container 29 side.

  As a result, the head space above the content liquid, which presses the liquid surface by the air being sent and the pressure is increased, has a cross-sectional area and volume much smaller than the cross-sectional area and volume of the head space of the outer container 29. It becomes possible to keep only the head space portion of the pressurized chamber 30. In addition, by this, even if the remaining amount of the content liquid stored inside the pressurizing chamber 30 decreases, the cross-sectional area of the pressurizing chamber 30 is small, so that the volume of the head space can be kept small. It is possible to increase the internal pressure promptly after starting to send air, and to effectively suppress the delay of the discharge of the content liquid due to the pressurized air.

  In addition, this allows the air and the content liquid set at a predetermined gas-liquid mixing ratio to be smoothly and stably sent out to the mixing chamber 42 while the air is continuously fed into the pressurizing chamber 30. When the liquid is mixed with air and discharged in the form of foam, it is possible to effectively suppress the change in foam quality.

  And according to the dispenser 10 of this embodiment, while being able to discharge the content liquid without taking in the inside of the dispenser main body 11, it is contained in air when the drive of the air pump 13 is stopped and deaerated. The liquid content is prevented from entering the air supply pipe 14 of the dispenser body 11 and can be used more hygienically.

  In other words, according to the present embodiment, the dispenser 10 has a mechanism that only feeds air from the dispenser body 11 and does not take the content liquid from the container body 22 of the foam discharge container 21 into the dispenser body 11. Yes. Accordingly, it is possible to use the dispenser 10 in a sanitary manner, preferably without replacing the remaining content liquid for a long period of time by appropriately replacing the foam discharge container 21 with a cartridge type.

  Further, according to the present embodiment, the discharge mechanism 23 of the foam discharge container 21 includes the air passage portion 24 that communicates with the air supply pipe 14 of the dispenser main body 11 and sends the supplied air into the container main body 22. The air passage portion 24 is provided with a deaeration hole 24b and an exhaust valve 27 for degassing the internal pressure when the supply of air from the air pump 13 is stopped. Thus, even if the exhausted air contains a mist-like content liquid, the content liquid contained in the air is not passed through the air supply pipe 14 of the dispenser main body 11 and the air passage portion 24 of the foam discharge container 21. It is possible to directly discharge to the outside air through the deaeration hole 24b and the exhaust valve 27 provided in the air. This also allows the content liquid contained in the air to be used more hygienically so as not to enter the air supply pipe 14 of the dispenser body 11. Further, as described above, since the user can automatically receive and receive the liquid contents by simply holding the human body or object over the sensor unit 20 without directly touching the dispenser 10, the dispenser 10 can be sanitized. Can be used. Further, by releasing the pressurized state inside the pressurizing chamber 30 by the exhaust from the exhaust valve 27, the discharge of bubbles from the nozzle unit 5 is quickly stopped and the tip of the nozzle unit 5 after the stop is stopped. It is possible to effectively prevent the liquid from dripping.

  Furthermore, according to the present embodiment, the backflow prevention valve 28 is provided in the air passage portion 24 in the vicinity of the communication port 24a with the air supply pipe 14 of the dispenser body 11. Thus, when the air pump 13 is stopped and deaerated, the content liquid contained in the air can be more reliably avoided from entering the air supply pipe 14 of the dispenser body 11.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, the foam discharge container does not need to be attached to the dispenser body of the dispenser so as to be detachable and replaceable. Further, the foam discharge container may not be one that presses the liquid surface of the content liquid with the air sent to the container body, and sends the pressed content liquid to the nozzle portion for discharge.
In addition, the foam discharge container may discharge the content liquid in a foam shape by performing a pressing operation of the pump head, similarly to the foam discharge device of Patent Document 1. Further, the nozzle portion forming member may have only a vertical flow path without having a horizontal flow path.
Moreover, the air sent into a pressurization chamber can also be supplied using other air supply means other than an air pump. As other air supply means, various air supply means such as pressurized air supply pipes installed as utilities inside the facility, foot-type and elbow-type air cylinders, and manual rubber balls can be selected. For example, the pressure chamber can be extended downward from the circulation port until it contacts the bottom of the outer container, and a tube can be attached to reduce the remaining amount of the content liquid as much as possible.

11 and 12 are views showing a nozzle part forming member constituting a nozzle part in still another embodiment of the present invention.
In the nozzle 5B in the embodiment shown in FIG. 11, four groove portions 53 are formed radially when viewed from the front end side of the nozzle portion.
As described above, the nozzle 5C in the embodiment shown in FIG. 12 has the tip 52 having a polygonal (hexagonal) cross-sectional shape perpendicular to the central axis 51c of the vertical channel 51. The polygon of the same cross-sectional shape of the tip 52 may be a straight line on each side, a curved shape in which each side is concavely curved outward, or each side may be It may have a curved shape that curves convex outward.

  In addition to cleaning agents such as hand soaps, the content liquid contained in the discharge container is a hand sanitizer that can be made into a foam by adding an activator, hair conditioner, fixative, hair restorer Such as cosmetics for hair such as skin care cosmetics such as lotion, milky lotion, and beauty essence, shaving foam, dishwashing detergent and the like.

5, 5B, 5C Nozzle part 50 Nozzle part forming member 51 Vertical flow path 51c Center line 52 of vertical flow path Tip-shaped tip part 53 Groove part 53a Side surface of groove part
53b Groove bottom 54 portion between grooves (portion located between grooves in the lower part)
55 upper side portion 56 lower side portion 57 horizontal flow passages 6 bubbles 10 dispenser 11 dispenser body 21 foam dispensing container 22 the container body 23 ejection mechanism (bubble discharge mechanism)

Claims (8)

A foam discharge container having a nozzle part through which a liquid content in a foam shape is discharged,
The nozzle portion has a vertical flow path in which bubbles flow from the upper side to the lower side, and an outer peripheral surface of the nozzle portion has a tapered shape with the outer peripheral surface facing downward at the lower part of the nozzle portion. Have
A plurality of grooves that communicate between the vertical flow path and the outer peripheral surface of the tip are formed in the tip .
The nozzle part has an upper part that does not have the groove part around the vertical flow path and a lower part that has the groove part around the vertical flow path as a part having the vertical flow path inside. A foam discharge container in which an inner diameter d1 of the vertical flow path in the upper portion is equal to an inner diameter d2 of the vertical flow path in the lower portion .   2. The foam discharge container according to claim 1, wherein three or more of the groove portions are radially formed when the tip portion is viewed from below. The foam discharge container according to claim 1 or 2 , wherein the bottom of the groove has a convex shape toward the upper side of the nozzle when the nozzle is viewed from the side. Bottom of the groove, or is inclined from the vertical flow path side so as to descend toward the outer peripheral surface of the tip, or extends in the horizontal direction, any one of claims 1 to 3 The foam discharge container according to 1. The foam discharge container according to any one of claims 1 to 4 , wherein the nozzle part has an inner diameter of the vertical flow path in an upper part not having the groove part of 2 mm or more and 8 mm or less. The foam discharge container according to any one of claims 1 to 5 , wherein the nozzle part has an inner diameter of the vertical flow path in a lower part having the groove part of 2 mm or more and 8 mm or less. The groove has a width of 1mm or 5mm or less, and more depth 1mm 10 mm or less, the foam discharge container according to any one of claims 1-6. The foam discharge container according to any one of claims 1 to 7 , wherein a gas-liquid ratio (the former: the latter) of air and the content liquid of the content liquid in the form of foam is 5: 1 or more.

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