JP5761741B2 - Foam dispenser - Google Patents

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 can adopt a delamination bottle in a normal form that is not wide-mouthed as a container body, can improve the airtightness of the contents, exhibit an antioxidant effect, and The present invention proposes a foam dispenser that can reduce the dead space in the container for storing the liquid to be used, reduce the size of the container, and is easy to handle.

The first means is configured as follows. That is, a foam dispenser that includes a container body A and a former pump C attached to the container body A, mixes and bubbles the liquid in the container body A and the outside air, and ejects the foam as foam.
The container body A has a form in which the mouth and neck portion 12 is erected from the trunk portion 10 through the shoulder portion 11 and has a layer structure in which the inner layer i is laminated on the inner surface of the outer layer o in a peelable manner. a cylinder member C2 formed by consecutively provided integrally concentrically air cylinder 40 and the small-diameter liquid cylinder 41 having a larger diameter in the vertical, the liquid piston 50 which slides in the liquid cylinder 41 within the stem 51 circumference Projecting from the bottom, the air piston 52 sliding inside the air cylinder 40 is linked to the upper periphery of the stem 51, and the discharge head 53 is fitted to the upper end of the stem 51 so that it can move up and down in the upward biased state. The operating member C3 is mounted, and the liquid in the liquid cylinder 41 and the air in the air cylinder 40 are merged by the up-and-down movement of the operating member C3 to generate bubbles, and are discharged as bubbles from the discharge port of the discharge head 53. as Forms will be,
In the state where the liquid cylinder 41 is suspended in the container body A and the entire air cylinder 40 is positioned above the mouth and neck portion 12, the former pump C is formed as a separate body from the former pump. The container body A was mounted via the member B.

The second means is configured as follows. That is, in the first means, the connecting member B suspends the mounting cylinder 20 fitted to the outer periphery of the mouth-and-neck portion 12 from the lower surface of the bottom plate 22 having a window hole 21 formed in the center thereof. 22 Standing up the peripheral wall 23 above the peripheral edge,
In addition, a mounting cap C1 that has an insertion hole through which the stem 51 is inserted and that closes the upper surface of the air cylinder 40 is provided.
The upper end portion of the air cylinder 40 is fitted to the back surface of the mounting cap C1, and the air cylinder 40 is placed in the peripheral wall 23, and the liquid cylinder 41 is placed in the container body A from the mouth and neck portion 12, respectively. The mounting cap peripheral wall 30 was fitted to the outer periphery of the connecting member peripheral wall 23 in a suspended state, and the former pump C was attached to the container body A via the connecting member B.

  The third means was configured as follows. That is, in the second means, a rotation preventing mechanism for preventing mutual rotation between the connecting member peripheral wall 23 and the mounting cap peripheral wall 30 is provided.

  The fourth means is configured as follows. That is, in the second means or the third means, the connecting member B is suspended from the peripheral wall 23 via the flange 24 and provided with a support cylinder 25 whose lower end is suspended on the container body shoulder 11. The mounting cylinder 20 was detachably mounted on the outer periphery of the mouth neck 12.

  The fifth means is configured as follows. That is, in any one of the first to fourth means, the dip bar 49 provided with the baffle plate 49c that prevents the contracted inner layer i from blocking the lower end opening of the cylinder member C2. The cylinder member C2 was fitted and suspended at the lower end.

According to the present invention, since the container body A has a structure in which the inner layer i is detachably laminated on the outer layer o having shape retention, the hermeticity of the container can be improved, Since there is no contact, the antioxidant effect of the contents contained in the container body A can be exhibited, and the former pump C is suspended from the liquid cylinder 41 in the container body A and above the mouth neck 12. In the state where the entire air cylinder 40 is positioned on the container body A via the connecting member B, the proportion of the former pump in the container body A is extremely reduced, and the same amount of liquid is supplied. The size of the container body A can be made extremely small as compared with the conventional container body stored, and the container body A to be used does not need to have a wide mouth. Even if it exists, there also exists an advantage that a shaping | molding can be performed easily.

  The connecting member B hangs the mounting cylinder 20 fitted to the outer periphery of the mouth-and-neck portion 12 from the lower surface of the bottom plate 22 with a window hole 21 formed in the center, and stands the peripheral wall 23 upward from the peripheral portion of the bottom plate 22. The cylinder 40 for air suspended from the mounting cap C1 is mounted in the peripheral wall 23, and the liquid cylinder 41 is mounted on the outer periphery of the connecting member peripheral wall 23 in a state where it is suspended from the inside of the neck 12 to the container body A. When the cap peripheral wall 30 is fitted and the former pump C is attached to the container body A via the connecting member B, the structure of the connecting member B is extremely simple and can be easily manufactured. The attachment of the connecting member B to the container body A and the attachment of the former pump C to the connecting member B are extremely easy, and the assembling operation can be easily performed.

  When a rotation preventing mechanism for preventing mutual rotation is provided between the connecting member peripheral wall 23 and the mounting cap peripheral wall 30, the connecting member B and the former pump C are integrated so that the container body A can be attached and detached. Very easy to do.

Further, the connecting member B is suspended from the peripheral wall 23 via the flange 24, and is provided with a support cylinder 25 having a lower end suspended on the container body shoulder 11, so that the mounting cylinder 20 can be attached to and detached from the outer periphery of the mouth-neck part 12. When attached, the irregularities of the peripheral wall 23 and the mounting cylinder 20 are covered to improve the appearance from the outside, and when the liquid in the container body A is used up, only the container body A is removed and refilling is performed. The container body can be replaced. Since the replacement operation can be performed by holding the support tube 25, the replacement can be performed more smoothly.

  When the dip bar 49 provided with the baffle plate 49c that prevents the contracted inner layer i from blocking the lower end opening of the cylinder member C2 is fitted to the lower end portion of the cylinder member C2, the liquid is reduced. 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 41 is blocked by the contracted inner layer i.

It is a principal part notched side view of a foam discharger. (Example 1) It is principal part explanatory drawing explaining a ratchet mechanism. (Example 1)

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

  FIG. 1 shows an example of a foam discharger. The foam discharger 1 includes a container body A, a connecting member B, and a former pump C.

  The container body A is made of synthetic resin, and has a mouth-and-neck portion 12 standing up from the trunk portion 10 via a shoulder portion 11. An annular laterally-facing step portion 13 is provided at the center portion in the inner and outer direction of the shoulder portion 11. It is configured one step higher. 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 14 for introducing outside air is formed in the outer layer o of the mouth / neck portion 12. When the inner layer i is peeled from the outer layer o, the outside air is introduced into the both layers through the through-hole 14 for introducing outside air. The through-hole 14 for introducing the outside air may be a slit, and the installation position is not limited to the mouth / neck portion 12, and the position is not limited as long as it is the outer layer o.

  The connecting member B is made of a synthetic resin, and a mounting cylinder 20 screwed onto the outer periphery of the mouth and neck portion 12 is suspended from the lower surface of the bottom plate 22 having a window hole 21 formed in the center, and the peripheral wall 23 extends upward from the peripheral portion of the bottom plate 22. Is standing up. Further, the flange 24 is extended outward from the upper and lower intermediate portions of the peripheral wall 23, the support cylinder 25 is suspended from the outer peripheral edge of the flange 24, and the lower end edge of the support cylinder 25 is circumferentially connected to the shoulder 11 of the container body A. It is made to fit in the outer periphery of the provided horizontal step part 13. Note that the flange 24 and the support cylinder 25 are not necessarily provided.

  The former pump C includes a mounting cap C1, a cylinder member C2, and an operation member C3.

  The mounting cap C1 is for fixing the former pump C to the container body A via the connecting member B, and the operating member C3 is provided at the center from the upper edge of the peripheral wall 30 screwed to the outer periphery of the connecting member peripheral wall 23. A top wall 31 having an open window hole is extended, and a guide cylinder 32 is erected upward from the peripheral edge of the window hole. Note that the locking means for fitting the mounting cap peripheral wall 30 to the connecting member peripheral wall 23 is not limited to screwing, but is, for example, a locking means that employs a concave-convex engaging means such as a crossing engagement between protrusions. May be.

  The cylinder member C2 has a small-diameter liquid cylinder 41 concentrically extending below the large-diameter air cylinder 40. The air cylinder 40 has a tapered bottom wall portion 43 that rises inward from the lower end edge of the peripheral wall portion 42, and the upper end edge of the liquid cylinder 41 is integrally connected to the inner peripheral edge of the bottom wall portion 43. Is configured. Further, the upper end of the peripheral wall portion 42 is fitted to the back surface of the top wall 31 of the mounting cap C1, and is suspended from the mounting cap C1.

  Further, a rotation prevention mechanism for preventing mutual rotation is provided at the lower end portion of the mounting cap peripheral wall 30 and the position directly above the flange 24 of the connecting member peripheral wall 23. The rotation preventing mechanism in this example is configured as a ratchet mechanism that can rotate in the screwing direction of the mounting cap C1 and cannot rotate in the screwing direction. As shown in FIG. 2, the ratchet mechanism has a large number of circumferentially engaging projections 26 protruding on the flange 24 on the outer periphery of the connecting member peripheral wall 23, and a plurality of engaging protrusions 33 in the circumferential direction at the inner peripheral lower end of the mounting cap peripheral wall 30. Is protruding. The locking projection 26 has a triangular shape in a plan view composed of a locking surface along the center line of the connecting member peripheral wall 23 and an inclined surface inclined from the tip of the locking surface, and the engaging projection 33 faces in the opposite direction. It has a triangular shape in plan view.

  The liquid cylinder 41 is connected to the inner peripheral edge of the bottom wall 43 of the air cylinder 40 and is connected to the upper edge of the peripheral wall 44 so as to hang downward. The tapered bottom wall opens at the center from the lower edge of the peripheral wall 44. A suction valve 47 is constituted by a poppet valve body 46 that is provided with an extended portion 45, the upper surface of the bottom wall 45 is configured as a valve seat for the suction valve, and the lower part in the liquid cylinder 41 is mounted so as to be movable up and down. ing. Further, the fitting cylinder 48 is integrally suspended downward from the central opening edge of the bottom wall portion 45. A dip bar 49 is fitted to the fitting cylinder 48. The dip bar 49 is for adjusting the contraction form of the inner layer i. The dip bar 49 is provided on the lower surface of the fitting cylinder 49a fitted on the outer circumference of the fitting cylinder 48 through a plurality of support rods 49b provided at equal intervals in the circumferential direction. A baffle plate 49c in the form of a cross plate is suspended. The presence of the dip bar 49 reliably prevents the inner layer i from contracting and closing the lower end opening of the fitting cylinder 48.

The actuating member C3 projects the liquid piston 50 sliding in the liquid cylinder 41 from the lower inner periphery of the stem 51, and links the air piston 52 sliding in the air cylinder 40 to the upper outer periphery of the stem 51. The ejection head 53 is fitted on the upper end of the stem 51. And it mounts | wears so that it can move up and down in the upward biasing state by the coil spring s interposed on the lower surface of the piston 50 for liquids.

A check valve 54 constituted by the upper end of the piston rod of the liquid piston 50 and the upper end of the poppet valve body 46 is provided in the lower part of the stem 51, and a discharge valve 55 is provided in the upper part of the stem 51. Moreover, the cylinder body which tensioned the mesh 56 was provided above the discharge valve, and it is set as the foaming layer. Further, an air discharge valve 57 is formed at the inner peripheral edge of the air piston 52, and an air passage communicating from the air discharge valve 57 to the gas / liquid mixing chamber R between the foaming layer and the discharge valve 55. 58. The air piston 52 is provided with an outside air introduction valve 59.

  Further, a spacer D may be provided. The spacer D includes an arcuate plate-like fitting portion 70 that is detachably fitted to the outer periphery of the guide cylinder 32 and a plate-like knob portion 71 that protrudes rearward from the rear surface of the fitting portion 70. The fitting portion 70 of the mounted spacer D abuts on the lower surface of the discharge head 53 to prevent the operating member C3 from being pushed down.

The foam dispenser 1 is, for example, connecting member B of the window opening 21 and the thereby hanging the liquid cylinder 41 from the monitor, coupling the mounting cap wall 30 while inserting the air cylinder 40 into the connecting member wall 23 member The former pump C and the connecting member B are engaged with each other to prevent the mutual rotation by engaging the ratchet mechanism at the screwing end point and engaging the ratchet mechanism at the end of the screwing. Assembling can be performed by attaching the container body A by screwing into the B mounting cylinder 20. When the contents of the container body A are exhausted, the container body A can be easily replaced by unscrewing only the container body A. At that time, since the former pump C and the connecting member B are prevented from rotating relative to each other, the container body can be attached and detached very easily.

  When the bubble discharger 1 removes the spacer D from the state shown in FIG. 1 and pushes down the discharge head 53, the air piston 52 rises relative to the stem 51, and the air discharge valve 57 opens and descends. The air piston 52 pressurizes the air in the air cylinder 40 and is introduced into the gas / liquid mixing chamber R through the air passage 58. On the other hand, the liquid piston 50 is lowered until the poppet valve body 46 is brought into contact with the valve seat for the suction valve. Thereafter, since the poppet valve body 46 rises relative to the stem 51, the check valve 54 opens, and the pressurized liquid in the liquid cylinder 41 is introduced into the gas / liquid mixing chamber R via the discharge valve 55. Here, gas and liquid are mixed. The gas / liquid mixed in the gas / liquid mixing chamber R passes through the foaming layer and foams, and is discharged from the nozzle of the discharge head 53 as bubbles.

  When the pressing of the discharge head 53 is released, the actuating member C3 is lifted by the biasing force of the coil spring s. At this time, the air piston 52 is lowered relative to the stem 51, and the air discharge valve 57 is closed. Due to the negative pressure inside 40, the outside air introduction valve 59 is opened and outside air is introduced into the air cylinder 40. On the other hand, as the stem 51 rises, the check valve 54 closes, the poppet valve body 46 rises, the suction valve 47 opens, and the liquid in the container body A is introduced into the liquid cylinder 41 that has become negative pressure. The discharge valve 55 is closed.

  When the liquid in the container body A is sucked into the liquid cylinder 41, 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 14 for introducing outside air. When the liquid in the container body A is exhausted, the container body A is removed from the connecting member B, and the refillable container body A filled with the liquid is attached to enable reuse.

1: Foam dispenser A: Container body 10 ... trunk part, 11 ... shoulder part, 12 ... mouth neck part, 13 ... side step part, 14 ... through-hole for introducing outside air, o ... outer layer, i ... inner layer B: connection Member 20 ... mounting cylinder, 21 ... window hole, 22 ... bottom plate, 23 ... peripheral wall, 24 ... flange, 25 ... support cylinder C: former pump C1: mounting cap 30 ... peripheral wall, 31 ... top wall, 32 ... guide cylinder C2 ... Cylinder member 40 ... Air cylinder, 41 ... Liquid cylinder, 42 ... Air cylinder peripheral wall,
43: cylinder bottom wall air, 44 ... liquid cylinder peripheral wall, 45 ... liquid cylinder bottom wall, 46 ... poppet, 47 ... intake valve, 48 ... fitting tube, 49 ... dip bar,
49a ... fitting cylinder, 49b ... support rod, 49c ... baffle plate C3: actuating member 50 ... liquid piston, 51 ... stem, 52 ... air piston, 53 ... discharge head,
54 ... Discharge valve, 55 ... Discharge valve, 56 ... Mesh, 57 ... Air discharge valve, 58 ... Air passage,
59 ... Outside air introduction valve D ... Spacer 70 ... Fitting cylinder, 71 ... Knob R: Gas / liquid mixing chamber s: Coil spring

Claims (5)

A foam dispenser comprising a container body (A) and a former pump (C) attached to the container body (A), wherein the liquid in the container body (A) and the outside air are mixed and bubbled and discharged as foam. Because
The container body (A) has a form in which the mouth neck part (12) is erected from the trunk part (10) via the shoulder part (11), and the inner layer (i) is laminated on the inner surface of the outer layer (o) in a peelable manner. None layer structure, the former pump (C), the air cylinder of large diameter (40) and small diameter formed by consecutively provided integrally concentrically liquid cylinder (41) in the vertical cylinder member (C2) And a liquid piston (50) that slides in the liquid cylinder (41) protrudes from the inner peripheral lower portion of the stem (51), and an air piston (52) that slides in the air cylinder (40). Is connected to the upper periphery of the stem (51), and the discharge head (53) is fitted to the upper end of the stem (51) so as to be movable up and down in an upward biased state (C3). C3) vertical movement of the liquid and air in the liquid cylinder (41) Da (40) air is combined with in frothing, it was composed as to discharge the foam from the discharge port of the discharge head (53),
In the state where the liquid cylinder (41) is suspended in the container body (A) and the entire air cylinder (40) is positioned above the mouth neck (12), the former pump (C) is A foam discharger mounted on a container body (A) via a connecting member (B) formed separately from a former pump . The connecting member (B) has a mounting cylinder (20) fitted to the outer periphery of the mouth / neck portion (12) suspended from the bottom surface of the bottom plate (22) having a window hole (21) in the center. 22) Standing up the peripheral wall (23) upward from the peripheral edge,
Also, a mounting cap (C1) having an insertion hole for inserting the stem (51) and closing the upper surface of the air cylinder (40) is provided.
The upper end of the air cylinder (40) is fitted to the back surface of the mounting cap (C1), the air cylinder (40) is placed in the peripheral wall (23), and the liquid cylinder (41) is placed in the mouth and neck. (12) The mounting cap peripheral wall (30) is fitted to the outer periphery of the connecting member peripheral wall (23) while being suspended from the inside of the container body (A), and the former pump (C) is connected to the connecting member (B The foam discharger according to claim 1, wherein the foam discharger is attached to the container body (A) via   The foam discharger according to claim 2, wherein a rotation preventing mechanism for preventing mutual rotation is provided between the connecting member peripheral wall (23) and the mounting cap peripheral wall (30).   The connecting member (B) is suspended from the peripheral wall (23) via the flange (24) and provided with a support cylinder (25) whose lower end is suspended on the container shoulder (11), and the mounting cylinder (20). The foam dispenser according to claim 2 or 3, wherein the mouth and neck (12) is detachably mounted on the outer periphery of the mouth and neck.   A dip bar (49) having a baffle plate (49c) that prevents the contracted inner layer (i) from blocking the lower end opening of the cylinder member (C2) is fitted and suspended on the lower end portion of the cylinder member (C2). The foam discharger according to any one of claims 1 to 4.

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