JP2013177185A - Bubble discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bubble discharge device which discharges a liquid in a container body A and outside air as bubbles by mixing and foaming them, which can exert a proper antioxidant effect by enhancing airtightness of stored matter, which can be used in an inverted state, which can reduce the amount of molding resin, and which can be wholly slimmed down.SOLUTION: A bubble discharge device includes a container body which has a double layer structure having a flexible inner layer i provided in an outer layer o raising a mouth and neck part 12 via a shoulder part 11 from a bottomed cylinder-like body 10. A foamer pump B includes a cylinder member B1 which comprises a large-diameter air cylinder 21 attached to the container body A by fitting an attachment cylinder 20 into an outer periphery of the mouth and neck part 12, connected onto the attachment cylinder 20 and positioned on the mouth and neck part 12, and a small-diameter liquid cylinder 22 connected concentrically with the air cylinder and suspended in the container body. The cylinder member also contributes to connection between the foamer pump and the container body to simplify the whole structure.

Description

  The present invention relates to a foam dispenser.

  There has been proposed a foam discharger that mixes and bubbles the liquid in the mounted container and the outside air to discharge as a foam (see, for example, Patent Document 1).

  The foam discharge device described in the above-mentioned patent document 1 fixes an upper end portion to a mounting cap fitted to the outer periphery of the neck of the container body and hangs down in the container body, and has a large-diameter air cylinder and a small-diameter cylinder. A cylinder member in which liquid cylinders are concentrically connected up and down, and a liquid piston that slides in the liquid cylinder protrudes from the lower portion of the outer periphery of the stem, and an air piston that slides in the air cylinder Is connected to the upper periphery of the stem, and the discharge head is fitted to the upper end of the stem so that it can be moved up and down in the upward biased state. It is configured such that the air in the cylinder is merged to generate bubbles and discharged as bubbles from the discharge port of the discharge head.

  Therefore, a large-diameter cylinder for air and a small-diameter liquid cylinder connected below the container are used in the state of being inserted together, so it can be used in comparison with the internal volume of the container. There is a disadvantage that the amount of liquid is limited to a minimum amount.

  In addition, in order to improve the hermeticity of the contents contained in the container body and to exhibit an antioxidant effect, it is conceivable to use a so-called Delami bottle in which the inner layer is laminated on the outer layer in a peelable manner. In the container, since the Delami bottle has a wide-mouth structure, it is extremely difficult to form and is not realistic.

JP 2009-208786 A

  The present invention has been made in view of the above points, and it is possible to adopt a delamination bottle in a normal form that is not wide-mouthed as a container body, and to improve the airtightness of the contents and exhibit a good antioxidant effect. We propose a foam dispenser that can be used upside down. In addition, it is possible to reduce the dead space in the container body that stores the liquid to be used, and to reduce the size of the container body.In addition, the structure can be simplified to reduce the amount of resin for molding, and overall slimming is possible. Therefore, the present invention proposes a foam discharger that can be applied to a so-called handy type that can be used by hand and that can be formed with a good appearance.

  The first means is configured as follows. That is, a foam discharger that includes a container body A and a former pump B attached to the container body A, mixes and bubbles the liquid in the container body A and the outside air, and discharges it as foam, A has a double layer structure in which a flexible inner layer i is provided in an outer layer o having a shape-retaining property in which a mouth-and-neck portion 12 is erected from a lower-cylindrical trunk portion 10 via a shoulder portion 11. The mer pump B has a mounting cylinder 20 fitted to the outer periphery of the mouth-and-neck portion 12 and mounted on the container body A, and is connected to the mounting tube 20 and positioned on the mouth-and-neck portion 12. 21, a cylinder member B1 that is concentrically connected to the air cylinder 21 and has a small-diameter liquid cylinder 22 suspended in the container body A, and a liquid piston 40 that slides in the liquid cylinder 22. An air pipe protruding from the lower periphery of the stem 41 and sliding in the air cylinder 21 And an operating member B3 which is provided with a discharge head 43 which is connected to the upper periphery of the stem 41 and has a discharge port 56 connected to the inside of the stem 41 at the upper end so as to be movable up and down in the upward biased state. The liquid in the liquid cylinder 22 and the air in the air cylinder 21 are merged by the vertical movement of the member B3 to cause foaming, and are discharged as bubbles from the discharge port 56 of the discharge head 43.

  The second means is configured as follows. That is, in the first means, the cylinder member B1 has a mounting cylinder 20 having an outer peripheral surface having the same outer diameter as the outer periphery of the container body body 10 and an outer peripheral surface having the same outer diameter as the container body body 10. A pneumatic cylinder 21 is provided.

  The third means was configured as follows. That is, in the first means or the second means, the dip bar B2 provided with the baffle plate 32 that prevents the contracted inner layer i from blocking the lower end opening of the cylinder member B1 is used as the lower end of the cylinder member B1. It was fitted and suspended in the part.

  According to the present invention, the container body A is provided with the flexible inner layer i in the outer layer o having a shape-retaining property in which the mouth-and-neck portion 12 is erected from the lower and lower cylindrical body portion 10 through the shoulder portion 11. Since it is a double layer structure, the hermeticity of the contents can be improved, and since it does not come into contact with air until just before the discharge, the antioxidant effect of the contents in the container A can be exhibited, In addition, the proportion of the former pump B in the container body A is extremely reduced, and the size of the container body A can be made extremely small as compared with a conventional container body containing the same amount of liquid. Further, since the cylinder member B1 also serves as a mounting member for mounting the former pump B to the container body A, the structure is simplified and the amount of molding resin can be reduced as much as possible. Moreover, since the container body A to be used does not need to have a wide mouth, there is an advantage that even the container body having the inner and outer layer structures can be easily molded.

  When the cylinder member B1 includes the mounting cylinder 20 having an outer peripheral surface having the same outer diameter as the outer periphery of the container body 10 and the air cylinder 21 having an outer peripheral surface having the same outer diameter as the container body 10. In this case, a vertically long cylindrical shape having the same diameter from the lower end of the container body A to the upper end of the cylinder member B1 can be obtained, which is convenient to handle when used as a handy type discharger, and the dead space in the container body A Therefore, even when the size of the container A is reduced, it is possible to use an efficient liquid. Further, the container body A has a double-layer structure in which a flexible inner layer i is provided in an outer layer o having a shape-retaining property in which a mouth-and-neck portion 12 is erected from a lower-cylindrical body portion 10 via a shoulder portion 11. Therefore, when it is a handy type discharger, there is an advantage that bubbles can be discharged at all angles such as an upright state and an inverted state.

  When the dip bar B2 having the baffle plate 32 that prevents the contracted inner layer i from blocking the lower end opening of the cylinder member B1 is fitted to the lower end portion of the cylinder member B1, the liquid decreases. It is possible to reliably prevent the inconvenience that the contraction of the inner layer i is well regulated and the lower end opening leading to the liquid cylinder 22 is blocked by the contracted inner layer i.

It is a longitudinal cross-sectional view of a foam discharger. (First embodiment)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a first embodiment of a foam discharger. The foam discharger 1 includes a container body A, a former pump B, and an overcap C. For convenience of explanation, in FIG. 1, the left side is the front part, the right side is the rear part, the near side is the right side part, and the back side is the left side part.

  The container body A is formed of a synthetic resin or the like, and the mouth-and-neck portion 12 is erected from the low-cylindrical trunk portion 10 via the shoulder portion 11. In addition, the container body A is composed of an outer layer o having shape retention and a flexible inner layer i that is detachably laminated on the inner surface of the outer layer o. The inner layer i is configured to peel from the outer layer. In addition, a through hole 13 for introducing outside air is formed in the outer layer o of the mouth / neck portion 12 so that when the inner layer i is peeled off from the outer layer o, outside air is introduced into the both layers from the through hole 13 for introducing outside air. Is done. The through-hole 13 for introducing the outside air may be a slit, and the installation position is not limited to the mouth-and-neck part 12, and the position is not limited as long as it is the outer layer o. In this example, a so-called Delami bottle in which the inner layer i is laminated on the outer layer o is used as the container body A. However, the container body A is not limited to this. For example, a flexible bag-like shape is formed in the outer layer having shape retention. The inner layer may be housed, or a double layer structure having a flexible inner layer in an outer layer having a shape-retaining property in which the mouth neck portion 12 is erected from the trunk portion 10 through the shoulder portion 11. good.

  The former pump B includes a cylinder member B1, a dip bar B2, and an operation member B3.

  The cylinder member B1 is formed of a synthetic resin or the like. The cylinder member B1 is fitted to the container body A by fitting the mounting cylinder 20 on the outer periphery of the mouth-and-neck part 12, and is continuously provided on the mounting cylinder 20 and positioned on the mouth-neck part 12. A large-diameter air cylinder 21 and a small-diameter liquid cylinder 22 concentrically connected to the air cylinder 21 and suspended in the container body A. The former pump B is attached to the container body A. It plays the role of fixing.

  The air cylinder 21 has a bottom wall 21b extending from the lower end edge of the peripheral wall 21a, and a mounting cylinder 20 that is screwed onto the outer periphery of the mouth-and-neck portion 12 from the lower peripheral edge of the bottom wall 21b. Further, an upper end portion of the liquid cylinder 22 is opened at the center of the bottom wall 21 b and is integrally connected to the liquid cylinder 22. A packing p is interposed between the container body neck 12 and the lower surface of the bottom wall 21b of the air cylinder 21.

  A shoulder cover 23 formed separately is attached to the upper end of the air cylinder 21. The shoulder cover 23 is formed of a synthetic resin or the like, and a fitting cylinder 23a fitted to the inner periphery of the air cylinder peripheral wall 21a is replaced with a ring-shaped substrate portion 23b having an outer peripheral edge fitted to the air cylinder peripheral wall 21a. Further, a flange-like top plate portion 23d extends inward from the upper end of the peripheral wall 23c erected above the inner peripheral edge of the upper surface of the substrate portion 23b.

  The liquid cylinder 22 has an upper end opened at the center of the air cylinder bottom wall 21b and is continuously provided downward. The upper end of the peripheral wall portion 22a is connected to the opening periphery of the bottom wall 21b of the air cylinder 21. A tapered bottom wall portion 22b having a central opening from the lower end edge of the peripheral wall portion 22a is extended, and the upper surface of the bottom wall portion 22b is configured as a valve seat for a suction valve. A suction valve 25 is constituted by a poppet valve body 24 mounted so as to be movable up and down. Further, the fitting cylinder 26 is integrally suspended downward from the central opening edge of the bottom wall portion 22b.

  A dip bar B2 is fitted to the fitting cylinder 26. The dip bar B2 is for adjusting the contraction form of the inner layer i, and is provided on the lower surface of the fitting cylinder 30 fitted on the outer circumference of the fitting cylinder 26 via a plurality of support rods 31 provided at equal intervals in the circumferential direction. A baffle plate 32 in the form of a cross plate is provided vertically. The presence of the dip bar B2 reliably prevents the inner layer i from contracting and closing the lower end opening of the fitting cylinder 26.

  The actuating member B3 projects the liquid piston 40 sliding in the liquid cylinder 22 from the lower outer periphery of the stem 41 and links the air piston 42 sliding in the air cylinder 21 to the upper outer periphery of the stem 41. The discharge head 43 is fitted through a connecting cylinder member 51 fitted to the upper end of the stem 41. The coil spring s interposed on the lower surface of the liquid piston 40 is mounted so as to move up and down in an upward biased state.

  A discharge valve 45 is provided in the stem 41, and an upper end of the poppet valve body 24 is used as a valve body at a lower end portion of the stem 41, and an annular projecting piece projecting from the piston rod of the liquid piston 30 is used as a valve seat. A check valve 47 is provided. Further, an air discharge valve 48 is formed on the inner peripheral edge of the air piston 42, and an outside air introduction valve 50 is provided on the air piston 42.

  The connecting cylinder member 51 has a lower portion fitted into the upper end portion of the stem 41, and an air passage 49 communicating with the fitting portion from the air discharge valve 48 to the gas-liquid mixing chamber R formed in the stem 41 downstream of the discharge valve 45. Is forming. In addition, a pair of cylinders with meshes 46 are provided in the connecting cylinder member 51 downstream of the gas-liquid mixing chamber R so that the meshes 46 are positioned above and below to form a foam layer.

  In the discharge head 43, a vertical cylinder 52 having a lower portion fitted to the upper outer periphery of the connecting cylinder member 51 is suspended from the back surface of the top plate 53, and an outer peripheral wall 54 is suspended from the peripheral edge of the top plate 53. One end is opened at the upper end of the vertical cylinder 52, the other end is provided with a nozzle 55 projecting forward through the outer peripheral wall 54, and a discharge port 56 is opened at the tip. The gas-liquid mixing chamber R in the stem 41 communicates with the discharge port 56 at the tip of the nozzle 55 through the bubble layer.

  The overcap C is detachably mounted by fitting the lower end of the peripheral wall to the outer periphery of the peripheral wall 23c of the shoulder cover 23.

  The foam discharger 1 can be mounted on the container body A by, for example, attaching a packing p to the former pump B and screwing the mounting cylinder 20 onto the mouth-neck portion 12. In this example, since the outer periphery of the body 10 of the container body A, the outer periphery of the mounting cylinder 20 of the cylinder member B1 and the outer periphery of the peripheral wall 22a are formed to have substantially the same diameter, foam discharge having substantially the same outer diameter from top to bottom. It is configured as a handy type foam dispenser that can be easily used with one hand. In this example, as described above, an example in which the outer peripheral surface of the container body 10 and the outer peripheral surfaces of the mounting cylinder 20 and the peripheral wall portion 22a are formed to have substantially the same diameter is shown. The present invention is not limited to the case where the same diameter is formed. Further, when the container A is no longer contained, it can be easily replaced by screwing only the container A.

  In the former pump B, when the overcap C is removed from the state of FIG. 1 and the discharge head 43 is pushed down, the air piston 42 rises relative to the stem 41, the air discharge valve 48 opens, and lowers. The air piston 42 pressurizes the air in the air cylinder 21 and is introduced into the gas-liquid mixing chamber R in the stem 41 downstream of the discharge valve 45 through the air passage 49. On the other hand, the liquid piston 40 is lowered and lowered until the poppet valve body 24 is brought into contact with the valve seat for the suction valve. Is opened, and the pressurized liquid in the liquid cylinder 22 is introduced into the gas-liquid mixing chamber R through the discharge valve 45, where the gas-liquid is mixed. The gas-liquid mixed in the gas-liquid mixing chamber R passes through the foaming layer and foams, and is discharged as bubbles from the discharge port 56 at the tip of the nozzle 55 of the discharge head 43.

  When the pressing of the discharge head 43 is released, the actuating member B3 is lifted by the urging force of the coil spring s. At this time, the air piston 42 is lowered relative to the stem 41, the air discharge valve 48 is closed, and the air cylinder The outside air introduction valve 50 is opened due to the negative pressure in the inside 21, and outside air is introduced into the air cylinder 21. On the other hand, the poppet valve body 24 is raised by the rise of the stem 41, and the liquid in the container body A is introduced into the liquid cylinder 22 which is opened and the suction valve 25 is opened to a negative pressure. At that time, the discharge valve 45 and the check valve 47 closes.

  When the liquid in the container body A is sucked into the liquid cylinder 22, the inner layer i is separated from the outer layer o, and the outside air is introduced into the inner layer i and the outer layer o through the through-hole 13 for introducing outside air.

1: Foam dispenser A: Container body 10 ... trunk, 11 ... shoulder, 12 ... mouth / neck, 13 ... through-hole for introducing outside air,
o: outer layer, i ... inner layer B: former pump B1: cylinder member 20 ... mounting cylinder, 21 ... air cylinder, 21a ... peripheral wall, 21b ... bottom wall,
22 ... Cylinder for liquid, 22a ... Peripheral wall part, 22b ... Bottom wall part, 23 ... Shoulder cover,
23a ... fitting tube, 23b ... substrate portion, 23c ... peripheral wall, 23d ... top plate portion,
24 ... Poppet valve body, 25 ... Suction valve, 26 ... Fitting cylinder B2: Dip bar 30 ... Fitting cylinder, 31 ... Support rod, 32 ... Baffle plate B3 ... Actuating member 40 ... Piston for liquid, 41 ... Stem, 42 ... Air piston, 43 ... Discharge head,
45 ... discharge valve 46 ... mesh, 47 ... check valve, 48 ... air discharge valve, 49 ... air passage,
50 ... Outside air introduction valve, 51 ... Connecting cylinder member, 52 ... Vertical cylinder, 53 ... Top plate, 54 ... Outer peripheral wall,
55 ... Nozzle, 56 ... Discharge port, R ... Gas-liquid mixing chamber C: Overcap p: Packing s: Coil spring

Claims (3)

  A foam dispenser comprising a container body (A) and a former pump (B) attached to the container body (A), which mixes and foams the liquid in the container body (A) and outside air and discharges it as foam. The container body (A) is placed in the outer layer (o) having a shape-retaining property in which the mouth and neck (12) is erected from the lower and lower cylindrical body (10) via the shoulder (11). It has a double-layer structure with a flexible inner layer (i), and the former pump (B) is mounted on the container body (A) by fitting a mounting cylinder (20) on the outer periphery of the mouth neck (12). At the same time, a large-diameter air cylinder (21) connected to the mounting cylinder (20) and positioned on the mouth-neck part (12) and a cylinder body concentrically connected to the air cylinder (21). (A) A cylinder member (B1) provided with a small-diameter liquid cylinder (22) depending on the liquid piston (4), and a liquid piston (4) sliding in the liquid cylinder (22) ) Projecting from the lower periphery of the stem (41), the piston for air (42) sliding in the air cylinder (21) is linked to the upper periphery of the stem (41), and the discharge port (56) is connected to the stem ( 41) an operating member (B3) provided at the upper end with a discharge head (43) communicating with the inside thereof and mounted so as to be movable up and down in the upward biased state, and the liquid cylinder by the up and down movement of the operating member (B3) (22) A bubble discharger characterized in that the liquid in the air and the air in the air cylinder (21) are merged to generate bubbles and discharged as bubbles from the discharge port (56) of the discharge head (43).   The cylinder member (B1) has a mounting cylinder (20) having an outer peripheral surface having the same outer diameter as the outer periphery of the container body barrel (10), and an air having an outer peripheral surface having the same outer diameter as the container body barrel (10). The foam discharger according to claim 1, further comprising a cylinder for use.   A dip bar (B2) having a baffle plate (32) that prevents the contracted inner layer (i) from blocking the lower end opening of the cylinder member (B1) is fitted to the lower end of the cylinder member (B1). The foam dispenser according to claim 1 or 2.