JP5865699B2 - 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.

JP 2009-208786 A

  The present invention has been made in view of the above points, and it is possible to reduce the dead space in the container body for storing the liquid to be used, to reduce the size of the container body, and to form the appearance well, and to replace the container body with the appearance. We propose a foam dispenser that can be easily done without damage.

The first means is configured as follows.
A foam discharger for mixing and foaming the liquid in the container body A and the outside air to discharge it as foam, and a container in which the mouth and neck part 12 is erected from the bottomed cylindrical body part 10 through the shoulder part 11 A body A, and a former pump C attached to the container body A via a connecting member B,
The former pump C includes a cylinder member C2 in which a large-diameter air cylinder 40 and a small-diameter liquid cylinder 41 suspended from the mounting cap C1 are connected concentrically up and down, and slides in the liquid cylinder 41. The moving liquid piston 50 protrudes from the lower outer periphery of the stem 51, and the air piston 52 that slides in the air cylinder 40 is linked to the upper outer periphery of the stem 51, and the upper end of the stem 51 discharges from the mounting cap C1. An operating member C3 fitted to the head 53 so as to be vertically movable in an upwardly biased state;
The liquid in the liquid cylinder 41 and the air in the air cylinder 40 are merged by the vertical movement of the actuating member C3 to generate bubbles, and are discharged as bubbles from the discharge port of the discharge head 53. The cylinder member C2 The upper part of the connecting member B, which is a separate member, is positioned on the outer periphery of the cylinder member C2 and fixed to the former pump, and the upper end is fixed to the outer surface of the mounting cap C1 to cover the connecting member downward. Tube D is suspended,
A state in which the liquid cylinder 41 is suspended in the container body A, the air cylinder 40 is positioned above the mouth neck 12, and the lower end of the cover cylinder D is fitted to the outer periphery of the body 10 of the container body A Thus, the former pump C is attached to the container body A via the connecting member B.

  The second means is configured as follows. That is, in the first means, the container body A can be detachably attached to the former pump C to which the connecting member B and the cover cylinder D are fixed.

  The third means was configured as follows. That is, in the first means or the second means, the flange-like bottom plate 22 is extended from the lower end edge of the peripheral wall 23 for fitting the connecting member B to the outer periphery of the air cylinder 40, and the bottom surface of the bottom plate 22 is lower. Further, the mounting cylinder 20 to be fitted to the outer periphery of the mouth and neck portion 12 is suspended, and the peripheral wall 30 of the mounting cap C1 can be fitted and locked to the outer periphery of the peripheral wall 23. In addition to fixing the upper end to the bottom, the lower end is suspended downward so that the container A can be fitted to the outer periphery of the body 10.

  The fourth means is configured as follows. That is, in any one of the first to third means, the fitting recess 13 into which the lower end of the cover cylinder D is fitted is provided on the upper end of the outer periphery of the barrel 10 of the container body A. .

  According to the present invention, the proportion of the former pump in the container body A is extremely reduced, and the size of the container body A is extremely small compared to a conventional container body containing the same amount of liquid. be able to. In addition, the presence of the cover tube D allows the container body A and the former pump C to be integrated together as a foam discharger having a sense of unity, and differentiation can be achieved. In addition, there is a feature that the strength of the container body 10 can be maintained even if the body is formed to be slightly thin due to the presence of the cover cylinder D, and the amount of resin forming the body 10 can be reduced.

  When the former A is configured so that the container body A can be detachably attached to the former pump C to which the connecting member B and the cover cylinder D are fixed, an alternative refill is provided when the liquid in the container body A is exhausted. The container body can be easily exchanged, or the contents can be easily replenished into the container body A from the replenishing container, and handling is convenient.

  A flange-shaped bottom plate 22 is extended from the lower end edge of the peripheral wall 23 for fitting the connecting member B to the outer periphery of the air cylinder 40, and a mounting cylinder 20 for fitting the outer periphery of the neck portion 12 from the bottom surface of the bottom plate 22 is provided vertically. The peripheral wall 30 of the mounting cap C1 can be fitted and locked to the outer periphery of the peripheral wall 23, the upper end portion is fixed to the outer periphery of the mounting cap peripheral wall 30, and the lower end portion is the body of the container body A. In the case where it is suspended downward so that it can be fitted to the outer periphery of the part 10, the whole can be formed very compactly, and it is an abbreviation from the mounting cap C 1 to the body part 10 of the container body A through the cover cylinder D. A foam dispenser having the same outer diameter and good appearance can be obtained.

When the upper end of the outer periphery of the body 10 of the container body A is provided with a fitting recess 13 into which the lower end of the cover tube D is fitted, the cover tube D can be more easily fitted to the container body 10. In addition, since the outer surface of the cover cylinder D and the outer surface of the container body 10 can be formed to be flush with each other, there is an advantage that the appearance is further improved.

It is a principal part notched side view of a foam discharger. (Example 1) It is a principal part notched side view of the foam dispenser in the state where the container body removed. (Example 1)

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

  FIG. 1 shows an example of a foam dispenser, and the foam dispenser 1 includes a container body A, a connecting member B, a foamer pump C, a cover cylinder D, and an overcap E.

The container body A is made of synthetic resin, and the neck portion 12 is raised from the bottomed cylindrical trunk portion 10 via the shoulder portion 11. A circumferential belt-like fitting recess is formed on the outer peripheral upper end of the trunk portion 10. 13 is recessed.

The connecting member B is made of synthetic resin, and a mounting cylinder 20 to be 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 formed in the center, and the peripheral wall 23 is extended upward from the peripheral portion of the bottom plate 22. Standing up. In this example, as shown in FIG. In that case, the upper part of the connecting member is positioned on the outer periphery of a cylinder member C2 (described later) of the former pump C, and is fitted as follows.

  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 connecting member B, and has a window hole that penetrates the operating member C3 in the center from the upper end edge of the peripheral wall 30 screwed to the outer periphery of the connecting member peripheral wall 23. The top wall 31 is extended.

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

  The liquid cylinder 41 is connected to the inner peripheral edge of the bottom wall portion of the air cylinder 40 with the upper edge of the peripheral wall portion hanging downward, and extends from the lower end edge of the peripheral wall portion to a tapered bottom wall portion that opens at the center. The upper surface of the bottom wall portion is configured as a valve seat for the suction valve, and the suction valve 47 is configured by the poppet valve body 46 mounted on the lower portion of the liquid cylinder 41 so as to be movable up and down. Moreover, the pipe fitting cylinder is integrally suspended below the center opening edge of the bottom wall portion. The upper end of the suction pipe 48 is fitted to the pipe fitting cylinder, and the lower end thereof is suspended from the lower end portion in the container body A.

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

  A discharge valve 54 is provided in the stem 51, and a cylindrical body with a mesh 55 stretched is provided above the discharge valve to form a foaming layer. Further, an air discharge valve 56 is formed on the inner peripheral edge of the air piston 52, and an air passage 57 communicating from the air discharge valve 56 to the gas / liquid mixing chamber below the foaming layer is provided. The air piston is provided with an outside air introduction valve 58.

  The cover cylinder D is provided with an upper end fixed to the outer periphery of the mounting cap C1 and suspended downward. In this example, the connecting member B is also mounted and fixed in advance on the former pump C as shown in FIG. . In this case, the upper end portion is fixed to the outer periphery of the mounting cap peripheral wall 30 of the former pump C, and the lower end portion is suspended to the lower position of the liquid cylinder 41 so as to be fitted to the outer periphery of the body portion 10 of the container body A. . As a means for fixing the cover tube D, it can be appropriately employed by bonding, welding, fitting or the like. The cover tube D is basically made of a synthetic resin and may be a single layer structure or a laminated structure, and a relatively thin one is preferably employed. Specific examples include shrink films, tack labels, tube sleeves, and the like, but are not limited thereto.

  The overcap E is detachably mounted by fitting the lower end of the peripheral wall to a fitting recess formed on the outer periphery of the peripheral wall 30 of the mounting cap C1.

  As shown in FIG. 2, the foam discharger 1 is provided with a former pump C fitted with a connecting member B and a cover cylinder D by inserting a pipe 48 and a cylinder member C2 at the lower end into the container body A. The tube body 20 can be attached to the container body A by fitting the lower end portion of the cover tube D to the outer periphery upper portion of the container body body portion 10 while screwing the tube 20 to the outer periphery of the mouth neck portion 12. In this example, since the recessed portion 13 for fitting is provided at the outer peripheral upper end of the body 10 of the container body A, it can be formed substantially flush with the outer peripheral surface of the container body 10 and the outer peripheral surface of the cover cylinder D. A foam dispenser having substantially the same outer diameter can be configured to the bottom. In this example, an example in which the outer peripheral surface of the container body 10 and the outer peripheral surface of the cover cylinder D are formed flush with each other is shown. However, in the present invention, when these are not necessarily formed flush with each other. For example, there may be a step at the lower end of the cover tube D.

  In the former pump C, when the overcap E is removed from the state shown in FIG. 1 and the discharge head 53 is pushed down, the air piston 52 rises relative to the stem 51 and the air discharge valve 56 opens and lowers. The air piston 52 pressurizes the air in the air cylinder 40 and is introduced into the gas-liquid mixing chamber through the air passage 57. 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, and the pressurized liquid in the liquid cylinder 41 is discharged via the discharge valve 54 to the gas-liquid mixing chamber. Where the gas and liquid are mixed. The gas-liquid mixed in the gas-liquid mixing chamber passes through the foaming layer and foams and is discharged as bubbles from the nozzles of the discharge head 53.

  When the pressing of the discharge head 53 is released, the actuating member C3 is raised by the urging force of the coil spring s. At this time, the air piston 52 is lowered relative to the stem 51, the air discharge valve 56 is closed, and the air cylinder Due to the negative pressure inside 40, the outside air introduction valve 58 is opened and outside air is introduced into the air cylinder 40. On the other hand, as the stem 51 rises, the poppet valve body 46 rises, and the liquid in the container body A is introduced into the liquid cylinder 41 which is opened and the suction valve 47 is made negative, and the discharge valve 54 is closed at that time.

  When the liquid in the container body A runs out, the container body A can be removed from the former pump C and the liquid can be refilled, or the refillable container body A filled with the liquid can be mounted. Can be reused.

  In the above example, the case where the cover cylinder D is previously fitted and fixed to the former pump C has been described. However, in the present invention, the cover cylinder D may be fixed to the container body A side in advance.

DESCRIPTION OF SYMBOLS 1 ... Foam discharge device A: Container body 10 ... Body part, 11 ... Shoulder part, 12 ... Mouth and neck part, 13 ... Concave part B: Connecting member 20 ... Mounting cylinder, 22 ... Bottom plate, 23 ... Perimeter wall C: Former Pump C1 ... Mounting cap 30 ... Peripheral wall, 31 ... Top wall C2 ... Cylinder member 40 ... Air cylinder, 41 ... Liquid cylinder, 46 ... Poppet valve element, 47 ... Suction valve,
48 ... Pipe for suction C3 ... Actuating member 50 ... Piston for liquid, 51 ... Stem, 52 ... Piston for air, 53 ... Discharge head,
54 ... Discharge valve, 55 ... Mesh, 56 ... Air discharge valve, 57 ... Air passage,
58 ... Outside air introduction valve D ... Cover cylinder E ... Overcap s ... Coil spring

Claims (4)

A foam dispenser that mixes and foams the liquid in the container body (A) and the outside air and discharges it as foam, from the bottomed cylindrical body (10) through the shoulder (11) to the mouth and neck A container body (A) upstanding the section (12), and a former pump (C) mounted on the container body (A) via a connecting member (B),
The former pump (C) has a cylinder member (C2) formed by concentrically connecting a large-diameter air cylinder (40) and a small-diameter liquid cylinder (41) vertically suspended from the mounting cap (C1). ) And a liquid piston (50) that slides in the liquid cylinder (41) protrudes from the lower outer periphery 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), the discharge head (53) protruding from the mounting cap (C1) is fitted to the upper end of the stem (51), and the operating member (C3 is mounted so as to be vertically movable in an upward biased state) )
As the actuating member (C3) moves up and down, the liquid in the liquid cylinder (41) and the air in the air cylinder (40) are merged and bubbled, and discharged from the discharge port of the discharge head (53) as bubbles. The upper part of the connecting member (B), which is configured separately from the cylinder member (C2), is positioned on the outer periphery of the cylinder member (C2) and fixed to the former pump, and the mounting cap (C1) A cover cylinder (D) is suspended from the upper surface of the outer surface and covers the connecting member downward.
The liquid cylinder (41) is suspended in the container body (A), the air cylinder (40) is positioned above the mouth-neck part (12), and the outer periphery of the body part (10) of the container body (A) A foam dispenser in which the former pump (C) is attached to the container body (A) via the connecting member (B) with the lower end of the cover cylinder (D) fitted to the container body (B).   The foam dispenser according to claim 1, wherein the container body (A) can be detachably attached to the former pump (C) in which the connecting member (B) and the cover cylinder (D) are fixed.   A flange-shaped bottom plate (22) is extended from the lower end edge of the peripheral wall (23) for fitting the connecting member (B) to the outer periphery of the air cylinder (40), and the neck portion (12 ) The mounting cylinder (20) to be fitted to the outer periphery is suspended, and the peripheral wall (30) of the mounting cap (C1) can be fitted and locked to the outer periphery of the peripheral wall (23). The upper end is fixed to the outer periphery of the mounting cap peripheral wall (30), and the lower end is suspended downward so as to be fitted to the outer periphery of the body (10) of the container body (A). Item 3. The foam discharger according to Item 2.   The fitting recess (13) into which the lower end of the cover tube (D) is fitted is provided on the upper end of the outer periphery of the body (10) of the container body (A). The foam dispenser described.