JP2015020766A - Foamer dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamer dispenser that can prevent a discharge tool from being pushed down obliquely relative to a fitted cap and being rattled when pushing down a push-down head.SOLUTION: The foamer dispenser comprises: a fitted cap 4 that is fitted to a mouth part 3 of a container main body 2 for storing contents; and a discharge tool 8 that has a stem 5 which is arranged in the fitted cap 4 in a protruding state to be movable downward while being energized upward and a push-down head 7, fitted to the stem 5, in which a discharge hole 6 is formed. The discharge tool 8 comprises: a piston 11 for liquid; a cylinder 12 for liquid; a piston 13 for air; a cylinder 14 for air; a gas-liquid mixing chamber 15; and a foam member 16. The fitted cap 4 comprises a guide part 18 into which the discharge tool 8 is vertically inserted. On either one surface of an outer peripheral surface of an inserted part inserted into the guide part 18 and an inner peripheral surface of the guide part 18 is provided a guide rib 25 that is vertically slidable to the other surface.

Description

  The present invention relates to a former dispenser.

2. Description of the Related Art Conventionally, for example, as shown in Patent Document 1 below, a mounting cap that is mounted on the mouth of a container body that contains contents, and a stem that is erected on the mounting cap so as to be movable downward in an upward biased state. And a discharger having a press-down head mounted on the stem and having a discharge hole formed therein, the discharger moving up and down in conjunction with the stem, and the liquid piston inside A liquid cylinder disposed so as to be vertically slidable, a piston for air that moves up and down in conjunction with the stem, a cylinder for air that is slidable vertically within the air piston, A gas-liquid mixing chamber for mixing the contents transferred from the liquid cylinder and the air transferred from the air cylinder; and the gas-liquid mixing chamber disposed between the gas-liquid mixing chamber and the discharge hole. Gas-liquid mixture mixed in the chamber Former dispenser and a foam member for foaming are known.
The former dispenser pushes down the pressing head with respect to the container main body and moves the stem downward, whereby the contents in the container main body become foamy and are discharged from the discharge holes.

JP 2009-202122 A

  However, in the conventional former dispenser, when the pressing head is pushed down, for example, the user may push down while holding the nozzle cylinder portion where the discharge hole is opened. May be pushed diagonally and the dispenser may not be pushed straight down. It is desired to restrict this oblique pressing.

  The present invention has been made in view of such circumstances, and a former dispenser capable of suppressing the ejector from being obliquely pressed or rattling with respect to the mounting cap when the pressing head is pressed down. It is intended to provide.

In order to solve the above problems, the present invention proposes the following means.
The present invention relates to a mounting cap that is mounted on the mouth of a container body that contains contents, a stem that is erected on the mounting cap in an upwardly biased state, and a discharge hole that is mounted on the stem. And a dispenser having a push-down head formed, wherein the dispenser is disposed in a vertically movable manner in association with the stem, and the fluid piston is slidably disposed therein. A liquid cylinder, an air piston that moves up and down in conjunction with the stem, an air cylinder in which the air piston is slidable up and down, and contents transferred from the liquid cylinder A gas-liquid mixing chamber that mixes the air transferred from the air cylinder, and a gas-liquid mixture that is disposed between the gas-liquid mixing chamber and the discharge hole and is mixed in the gas-liquid mixing chamber A foam member for foaming The dispenser cap includes a guide portion through which the discharge device is inserted vertically, and an outer peripheral surface of an insertion portion inserted into the guide portion of the discharge device, and a guide portion of the guide portion. One of the inner peripheral surfaces is provided with a guide rib that can slide up and down relative to the other.

According to the former dispenser of the present invention, one of the outer peripheral surface of the insertion portion inserted into the guide portion of the mounting cap and the inner peripheral surface of the guide portion of the mounting cap in the dispenser is vertically slid relative to the other. Since the movable guide rib is provided, even if the discharger does not move straight downward but moves in the direction intersecting the vertical direction when the pressing head is pushed down, the guide rib is not on the other circumferential surface. By moving up and down while sliding in contact with the mounting cap, it is possible to suppress diagonal pressing of the discharger with respect to the mounting cap (that is, pressing down diagonally forward and diagonally backward, not directly below) and rattling.
As described above, when the pressing head is pressed down, it is possible to prevent the discharger from being obliquely pressed against the mounting cap or rattling (hereinafter, sometimes referred to as rattling). It is possible to stabilize the positional relationship in the radial direction, and the push-down operation is stabilized and the operability is improved.

  Further, in the former dispenser of the present invention, the air piston includes an inner sliding cylinder that is externally inserted so as to be movable up and down with respect to the stem, and the guide portion is disposed on the mouth portion, and the stem is An annular ceiling wall portion inserted therethrough, and a guide tube portion erected on an inner peripheral edge portion of the ceiling wall portion, and the guide rib is provided on either the inner sliding tube or the ceiling wall portion. It is good also as having the 1st guide rib which is provided and can slide to the other.

  In this case, as the guide rib, the first guide rib capable of sliding up and down relative to the other is provided on one of the inner sliding cylinder of the air piston and the top wall of the mounting cap. On the other hand, rattling or the like when the air piston of the discharger moves up and down is suppressed, and the above-described effects can be obtained more significantly.

  In the former dispenser of the present invention, the ceiling wall may be provided with an insertion cylinder into which the inner sliding cylinder is inserted.

  In this case, it becomes easy to ensure a length that can be contacted in the vertical direction between the insertion tube of the top wall portion and the inner sliding tube of the air piston, and the effect of suppressing the above-described rattling or the like of the discharger is more remarkable. It becomes.

  In the former dispenser of the present invention, the first guide rib may be provided on the inner sliding cylinder.

  Since the inner sliding cylinder of the piston for air is inserted into the top wall portion of the mounting cap together with the stem, the length along the vertical direction of the first guide rib in this configuration. Is more easily secured, and the effect of suppressing the above-described rattling or the like of the discharger becomes more remarkable.

  Further, in the former dispenser of the present invention, the pressing head has a top wall portion disposed above the stem, and a mounting cylinder portion that extends downward from the top wall portion and is attached to the stem. The guide rib may include a second guide rib that is provided on one of the mounting cylinder and the guide cylinder and is slidable on the other.

In this case, as the guide rib, a second guide rib that can slide up and down with respect to the other is provided on one of the mounting cylinder part of the pressing head and the guide cylinder part of the mounting cap. As a result, rattling or the like when the push-down head of the ejector moves up and down is suppressed, and the above-described effects become more remarkable.
Further, in this case, since the first guide rib and the second guide rib in the guide rib can be arranged at different positions along the vertical direction (can be arranged apart from each other in the vertical direction), the above-described rattling or the like of the discharger can be remarkably suppressed. .

  According to the former dispenser of the present invention, when the pressing head is pressed down, the discharger can be prevented from being obliquely pressed or rattling with respect to the mounting cap.

It is a longitudinal section showing a discharge container provided with a former dispenser concerning one embodiment of the present invention.

Hereinafter, a discharge container 10 including a former dispenser 1 according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharge container 10 includes a former dispenser 1 and a container body 2. The container body 2 stores liquid contents (content liquid). The former dispenser 1 foams the contents in the container body 2 and discharges the contents to the outside of the container. Examples of the contents include skin washing liquid (body wash). The composition table of an example of the contents is shown in Table 1 below.

In FIG. 1, a former dispenser 1 includes a mounting cap 4 mounted on a mouth 3 of a container body 2 in which contents are accommodated, and a stem erected on the mounting cap 4 so as to be movable downward in an upward biased state. 5 and a discharger 8 having a pressing head 7 attached to the stem 5 and having a discharge hole 6 formed therein. Further, the discharger 8 includes a liquid piston 11 that moves up and down in conjunction with the stem 5, a liquid cylinder 12 in which the liquid piston 11 is disposed so as to be slidable in the vertical direction, and a vertical movement in conjunction with the stem 5. A moving air piston 13, an air cylinder 14 in which the air piston 13 is slidable in the vertical direction, contents transferred from the liquid cylinder 12, and air transferred from the air cylinder 14 And a foam member 16 disposed between the gas-liquid mixing chamber 15 and the discharge hole 6 for foaming the gas-liquid mixture mixed in the gas-liquid mixing chamber 15. I have. These liquid piston 11, liquid cylinder 12, air piston 13, air cylinder 14, gas-liquid mixing chamber 15, and foaming member 16 constitute a discharge mechanism of the discharger 8.
The former dispenser 1 moves the stem 5 downward by depressing the pressing head 7 with respect to the container body 2 and operates the discharge mechanism, thereby transferring the contents in the container body 2 upward, The foamed contents obtained by mixing these gas-liquid mixtures are discharged from the discharge holes 6 of the pressing head 7 toward the container side.

  In FIG. 1, the center axis of the mouth portion 3, the mounting cap 4, the stem 5, and the pressing head 7 of the container body 2 are arranged on a common axis. In the present specification, this common axis is referred to as an axis O, the pressing head 7 side (upward in FIG. 1) along the direction of the axis O is referred to as the upper side, and the bottom side (lower side in FIG. 1) of the container body 2 is referred to as the lower side. A direction orthogonal to the axis O is referred to as a radial direction, and a direction around the axis O is referred to as a circumferential direction.

The mounting cap 4 includes a peripheral wall portion 17 that is mounted on the mouth portion 3 of the container body 2, and a guide portion 18 that is connected to the radially inner side of the peripheral wall portion 17 and through which the discharger 8 is inserted vertically.
In the illustrated example, the peripheral wall portion 17 is detachably attached to the mouth portion 3 by screwing. The peripheral wall portion 17 may be attached to the mouth portion 3 by, for example, undercut fitting other than the above screwing. The guide portion 18 includes an annular ceiling wall portion 19 that is disposed on the mouth portion 3 and through which the stem 5 is inserted, and a guide cylinder portion 20 that is erected on the inner peripheral edge of the ceiling wall portion 19. . Specifically, the guide tube portion 20 has a small diameter with respect to the peripheral wall portion 17, and the upper end portion of the peripheral wall portion 17 and the lower end portion of the guide tube portion 20 are interposed via an annular plate-shaped top wall portion 19. It is connected.

  The top wall portion 19 is provided with a plurality of ribs 21 that protrude downward and extend in the radial direction at intervals in the circumferential direction. An insertion tube 22 is suspended from the inner peripheral edge of the top wall 19, and the radially inner end of the rib 21 is connected to the outer peripheral surface of the insertion tube 22. In the illustrated example, the inner diameter of the insertion tube 22 of the top wall portion 19 is smaller than the inner diameter of the guide tube portion 20.

  An annular inner guide convex portion 23 is formed on the upper end portion of the guide tube portion 20 so as to protrude outward in the radial direction and extend along the circumferential direction. A restricting member 24 that restricts the downward movement of the pressing head 7 with respect to the guide tube portion 20 is attached to a portion of the guide tube portion 20 located below the inner guide convex portion 23. The restricting member 24 has a C shape in a top view when the former dispenser 1 is viewed from above, and is fitted on the guide tube portion 20 so as to be detachable.

A guide rib 25 is provided on the inner peripheral surface of the guide tube portion 20 so as to protrude inward in the radial direction and extend in the vertical direction. The former dispenser 1 of the present embodiment has a first guide rib 31 and a second guide rib 32, which will be described later, as the guide rib 25, and the guide rib 25 provided in the guide tube portion 20 is a second guide rib 32. .
The former dispenser 1 is capable of sliding up and down with respect to the other one of the outer peripheral surface of the insertion portion inserted into the guide portion 18 and the inner peripheral surface of the guide portion 18 of the discharger 8. A guide rib 25 is provided. The second guide rib 32 is provided on one of the guide tube portion 20 and a mounting tube portion 57 of the pressing head 7 described later, and is slidable on the other. In the present embodiment, the second guide rib 32 is provided. 32 is formed in the guide tube portion 20 and is slidable up and down on the mounting tube portion 57.

  The air cylinder 14 has a bottomed cylindrical shape, and has a peripheral wall and a bottom wall. A flange that protrudes radially outward and extends in the circumferential direction is formed in the upper end opening of the peripheral wall, and the flange is provided with a packing and a mounting cap provided on the upper surface of the mouth 3 of the container body 2. The air cylinder 14 is fixed to the container main body 2 and the mounting cap 4 by being sandwiched between the top wall portion 19 and the top wall portion 4 from above and below. The bottom wall of the air cylinder 14 is gradually inclined upward as it goes radially inward.

  The liquid cylinder 12 is formed integrally with the air cylinder 14. The liquid cylinder 12 extends downward from the inner peripheral edge of the bottom wall of the air cylinder 14 and the bottom end of the base cylinder portion 26, and extends downward. The taper cylinder part 27 which is diameter-reduced gradually according to this, and the drooping cylinder part 28 continuously provided toward the downward direction from the lower end of the taper cylinder part 27 are provided. A plurality of vertical ribs extending in the vertical direction are provided on the inner peripheral surface of the portion of the liquid cylinder 12 where the base tube portion 26 and the tapered tube portion 27 are connected to each other so as to protrude in the circumferential direction. . A suction pipe extending toward the bottom of the container main body 2 is fitted in the hanging cylinder portion 28.

Inside the liquid cylinder 12, a liquid piston 11 is slidable in the vertical direction. The liquid piston 11 is linked to the stem 5, and is specifically connected to the stem 5 so as to move up and down together with the stem 5. The liquid piston 11 has a cylindrical shape, and a lower diameter portion 29 is provided with a large-diameter portion 29 that is slidably fitted in the liquid cylinder 12 in a liquid-tight state. A valve member 35 is provided at the upper end portion. A small-diameter portion 30 that is detachably fitted to the upper valve body 36 is provided, and a middle-diameter portion 33 that connects the large-diameter portion 29 and the small-diameter portion 30 to an intermediate portion located between the lower end portion and the upper end portion. Is provided.
The liquid piston 11 is urged upward by an urging member 34 interposed between the upper end portion of the liquid piston 11 and the vertical rib of the liquid cylinder 12. As the urging member 34, for example, a coil spring or a resin spring can be employed.

  A rod-shaped valve member 35 is inserted into the liquid cylinder 12, the liquid piston 11, and the urging member 34 so as to be movable up and down. A hollow inverted conical upper valve body 36 is formed at the upper end portion of the valve member 35, and a lower valve body 37 is formed at the lower end portion of the valve member 35. The upper valve body 36 is seated on a valve seat portion formed at the upper end portion (small diameter portion 30) of the liquid piston 11 so as to be separated from above the valve seat portion. The lower valve body 37 is spaced upward from the tapered cylindrical portion 27 of the liquid cylinder 12 and can be seated on the tapered cylindrical portion 27. On the outer peripheral surface of the lower valve body 37, a guide convex portion disposed between the vertical ribs of the liquid cylinder 12 is projected.

  The stem 5 is erected so as to be movable downward within the mouth 3 of the container body 2 in an upwardly biased state. The stem 5 includes a lower stem 38 and an upper stem 39. Both the lower stem 38 and the upper stem 39 are formed in a cylindrical shape.

  The lower stem 38 is inserted into the air cylinder 14. A lower portion of the lower stem 38 has a larger diameter than that of the upper portion. A lower portion of the lower stem 38 is fitted on the medium diameter portion 33 of the liquid piston 11, and a lower end portion of the upper portion of the lower stem 38 is fitted on the small diameter portion 30 of the liquid piston 11. An annular flange portion 40 that protrudes outward in the radial direction and extends along the circumferential direction is provided at a connection portion between the upper portion and the lower portion of the lower stem 38. Further, an annular valve seat 41 that protrudes radially inward and extends along the circumferential direction is provided above the coupling portion in the upper portion of the lower stem 38, and the valve seat 41 includes: A spherical liquid discharge valve 51 is seated so as to be separated upward.

  An upper end portion of the lower stem 38 is disposed in the guide tube portion 20. In the upper end portion of the lower stem 38, a crested cylindrical pressing member 42 formed through a support column is provided. The pressing member 42 is placed on the valve seat 41 and is undercut fitted between the lower stem 38 and the valve seat 41. Between the struts of the pressing member 42, a flow hole that penetrates the struts in the radial direction is opened. On the top wall of the pressing member 42, an upper cylinder is erected upward and a lower cylinder is suspended downward.

The upper stem 39 is inserted into the guide tube portion 20 of the mounting cap 4 and is externally fitted to the upper end portion of the lower stem 38. The lower end portion of the upper stem 39 has an inner diameter larger than that of the outer fitting portion that is located above the lower end portion of the upper stem 39 and is fitted to the upper end portion of the lower stem 38. In the intermediate portion located between the lower end and the upper end of the upper stem 39, a reduced diameter portion 43 having a smaller inner diameter than other portions is formed.
A vertical groove 44 extending in the vertical direction is formed in a portion located below the reduced diameter portion 43 on the inner peripheral surface of the upper stem 39. The upper end portion of the vertical groove 44 is opened radially inward and communicated with the gas-liquid mixing chamber 15, and the lower end portion of the vertical groove 44 is opened downward.

The air piston 13 is disposed inside the air cylinder 14 so as to be slidable up and down. The air piston 13 is linked to the stem 5. Specifically, the air piston 13 moves up and down in response to the up and down movement of the stem 5 and can move up and down with respect to the stem 5.
The air piston 13 has an outer sliding cylinder 45 fitted in the air cylinder 14 so as to be slidable in the up-and-down direction, and has a smaller diameter than the outer sliding cylinder 45. An inner sliding cylinder 46 that is arranged on the inside in the radial direction and is fitted on the upper part of the lower stem 38 of the stem 5 so as to be slidable in the vertical direction, the inner peripheral surface of the outer sliding cylinder 45 and the outer periphery of the inner sliding cylinder 46 A connecting plate 47 that connects the surfaces, an air hole 48 that penetrates the connecting plate 47 in the vertical direction, and a valve body 49 that contacts the lower surface of the connecting plate 47 so as to be separable and closes the air hole 48 so that it can be opened and closed. It is equipped with.

The inner sliding cylinder 46 is externally inserted in a portion corresponding to the air piston located above the flange portion 40 and below the valve seat 41 in the lower stem 38 so as to be movable up and down. Specifically, the air piston corresponding part of the lower stem 38 is inserted into the inner sliding cylinder 46, and the inner peripheral surface of the inner sliding cylinder 46 and the outer peripheral surface of the air piston corresponding part. A gap is provided between the two. The gap communicates with the inside of the vertical groove 44 on the upper side and with the air cylinder 14 through the space between the flange portion 40 and the connecting plate 47 on the lower side. The clearance is blocked from communicating with the air cylinder 14 by the inner sliding cylinder 46 of the air piston 13 seating on the flange portion 40.
A plurality of vertical grooves 50 extending in the vertical direction are formed on the outer peripheral surface of the portion corresponding to the piston for air of the lower stem 38 at intervals in the circumferential direction. These longitudinal grooves 50 are disposed correspondingly between the first guide ribs 31 adjacent to each other in the circumferential direction to be described later of the inner sliding cylinder 46.

  The lower end portion of the upper stem 39 is fitted on the upper end portion of the inner sliding cylinder 46 so as to be slidable in the vertical direction. A portion located between the upper end portion of the inner sliding tube 46 and the lower end portion (specifically, the connecting portion connected to the connecting plate 47 in the inner sliding tube 46) projects outward in the radial direction. In addition, a first guide rib 31 (guide rib 25) extending in the vertical direction is provided. The inner sliding cylinder 46 is inserted into the insertion cylinder 22 of the top wall portion 19 of the mounting cap 4. The lower end edge of the inner sliding cylinder 46 is seated on the flange portion 40 so as to be separable.

  Here, the first guide rib 31 is provided on one of the inner sliding cylinder 46 and the top wall portion 19 and is slidable on the other. In the present embodiment, the first guide rib 31 is the inner sliding. It is formed on the moving cylinder 46 and can slide up and down on the insertion cylinder 22 of the top wall portion 19. In addition, above the first guide rib 31, the lower end opening edge of the upper stem 39 is disposed so as to face the first guide rib 31 with a gap.

  The connecting plate 47 connects the lower end portion of the inner sliding tube 46 and the central portion along the vertical direction of the outer sliding tube 45 over the entire circumference, and expands stepwise toward the annular plate shape or downward. It has a crested cylindrical shape with a diameter. The air cylinder 14 is divided into an upper chamber and a lower chamber by a connecting plate 47, and the upper chamber and the lower chamber can communicate with each other through an air hole 48 of the connecting plate 47.

  The gas-liquid mixing chamber 15 mixes the contents from the liquid cylinder 12 and the air from the air cylinder 14. The gas-liquid mixing chamber 15 is disposed in the stem 5, and in the illustrated example, between the pressing member 42 disposed in the upper end portion of the lower stem 38 and the vicinity of the reduced diameter portion 43 of the upper stem 39. Is located. The gas-liquid mixing chamber 15 is formed in the lower chamber of the air cylinder 14 in the vertical groove 44, the gap between the inner sliding cylinder 46 and the portion corresponding to the air piston of the lower stem 38, and the air formed in the vertical groove 50. Communication is possible through the introduction path 52.

The foam member 16 is provided in the stem 5, specifically, fitted in the upper end portion of the upper stem 39 and placed on the reduced diameter portion 43. The foaming member 16 is configured by a plurality of foaming elements 53 each having a mesh body stretched around an opening edge of a cylindrical body in the vertical direction. In the present embodiment, two foaming elements 53 are provided on the top and bottom, and among these foaming elements 53, the foaming element 53 located above is provided with a net only at the upper end opening edge of the cylinder, and below the foaming element 53. The foam element 53 is provided with a net only at the lower opening edge of the cylinder.
Note that at least one foaming element 53 and at least one net body may be provided. Further, by changing the roughness of the mesh of the foam element 53 located above (fine eyes) and the mesh of the foam element 53 located below (coarse eyes), finer bubbles can be generated. Can do.
The gas-liquid mixture in which the contents and air are mixed in the gas-liquid mixing chamber 15 flows into the foamed member 16 from the gas-liquid mixing chamber 15 through the reduced diameter portion 43, thereby forming a foam. Foamed.

The pressing head 7 includes a head main body 54 and an exterior cylinder portion 55. The head main body 54 and the exterior cylinder portion 55 are formed separately and assembled to each other. The head main body 54 includes a top wall portion 56, a mounting cylinder portion 57, a fitting cylinder portion 58, a covering wall portion 59, and a nozzle cylinder portion 60.
The top wall portion 56 is disposed above the stem 5.

  The mounting cylinder portion 57 extends downward from the top wall portion 56 and is mounted on the stem 5. The mounting cylinder portion 57 is disposed coaxially with the axis O and is fitted to the upper end portion of the upper stem 39 from the outside. The lower end portion of the mounting tube portion 57 is inserted into the guide tube portion 20, and the mounting tube portion 57 is movable up and down in the guide tube portion 20.

On the inner peripheral surface of the upper end portion of the mounting cylinder portion 57, a regulation rib 61 that protrudes inward in the radial direction is provided. The restriction rib 61 is formed in a plate shape extending in the vertical direction, and the upper end portion of the restriction rib 61 is connected to the top wall portion 56. The lower end portion of the restriction rib 61 is in contact with the upper end portion of the upper stem 39.
The fitting cylinder portion 58 protrudes downward from the top wall portion 56 and is disposed coaxially with the axis O. The fitting cylinder part 58 surrounds the upper end part of the mounting cylinder part 57 from the outside in the radial direction.

  The nozzle cylinder portion 60 extends from the mounting cylinder portion 57 toward the outside in the radial direction, and protrudes outward in the radial direction from the fitting cylinder portion 58. The nozzle cylinder 60 communicates with the stem 5 through the upper end of the mounting cylinder 57, and the discharge hole 6 is provided in the protruding end of the nozzle cylinder 60. In the following, of the radial directions, the direction in which the nozzle cylinder portion 60 extends is referred to as the front-rear direction, and the direction in which the discharge holes 6 open along the front-rear direction (right side in FIG. 1) is referred to as the front. The left side in FIG.

  The covering wall portion 59 extends downward from the outer peripheral edge portion of the top wall portion 56. The covering wall portion 59 is formed in a C-shape that opens forward when the former dispenser 1 is viewed from above and below, and the peripheral end portion of the covering wall portion 59 is the nozzle tube portion 60. Are connected to the respective sides facing in the circumferential direction. The covering wall part 59 covers the upper end part of the mounting cylinder part 57 and the fitting cylinder part 58 from the outside in the radial direction.

  The exterior cylinder portion 55 is provided at a position below the top wall portion 56. The upper end edge of the exterior cylinder part 55 is in contact with the lower surface of the top wall part 56, and the upper end part of the exterior cylinder part 55 is fitted in the fitting cylinder part 58. At the upper end portion of the exterior tube portion 55, an annular ridge portion 62 that protrudes outward in the radial direction is provided. The protrusion 62 is fitted (undercut or the like) to the inner peripheral surface of the fitting cylinder 58.

  The exterior cylinder part 55 surrounds the mounting cylinder part 57 and the guide cylinder part 20 from the outside in the radial direction, and the inside of the exterior cylinder part 55 can be communicated with the air cylinder 14 through the guide cylinder part 20. Yes. The lower end portion of the exterior cylinder portion 55 is disposed at the same position as the lower end portion of the mounting cylinder portion 57 in the vertical direction. The lower end portion of the exterior tube portion 55 surrounds the upper end portion of the guide tube portion 20 from the outside in the radial direction.

  An outer guide convex portion 63 that protrudes inward in the radial direction is provided at the lower end portion of the exterior cylinder portion 55. The outer guide convex portion 63 is formed in an annular shape. The outer guide convex portion 63 is opposed to the inner guide convex portion 23 in the radial direction before the pressing head 7 is pressed, and is close to the inner guide convex portion 23.

  Air intake holes 64 and 65 are formed in the upper end portion of the exterior cylinder portion 55. The intake holes 64 and 65 penetrate the exterior cylinder portion 55 in the radial direction and open upward. The intake holes 64 and 65 are provided with a first intake hole 64 and a second intake hole 65.

  The first intake holes 64 are disposed in the outer cylinder portion 55 at portions located on both sides in the left-right direction perpendicular to the front-rear direction in the radial direction. The first intake holes 64 have the same shape and the same size. The first intake holes 64 are formed in a rectangular shape when the former dispenser 1 is viewed from the left and right directions.

  Here, in the opening peripheral edge portion of the intake holes 64 and 65 on the outer peripheral surface of the exterior cylinder portion 55, a recess portion 66 that is indented in the radial direction and communicates with the intake holes 64 and 65 is formed. The depression 66 is disposed in a portion of the outer peripheral surface of the first intake hole 64 on the outer peripheral surface of the exterior cylinder portion 55 that is continuous with the first intake hole 64 from below. The depression 66 is formed in a rectangular shape in the side view. The size of the recess 66 in the circumferential direction is equal to the size of the first intake hole 64 in the circumferential direction.

The first intake hole 64 is covered with the fitting cylinder part 58 and the covering wall part 59 from the outside in the radial direction. The first intake hole 64 communicates with the outside of the former dispenser 1 through the recess 66.
The second intake hole 65 is located in front of the outer cylinder portion 55 and is arranged in front of the portion where the circumferential position is equivalent to the nozzle cylinder portion 60.

  A nozzle cylinder portion 60 is inserted into the second intake hole 65 from above, and the nozzle cylinder portion 60 extends forward from the second intake hole 65 and is more radially outward than the exterior cylinder portion 55. Protruding. The size of the second intake hole 65 in the circumferential direction is the same as the size of the nozzle cylinder portion 60 in the circumferential direction, and each side surface of the nozzle cylinder portion 60 is circumferential in the inner periphery of the second intake hole 65. It is locked to each part facing inward.

  The second air intake hole 65 is larger in the vertical direction than the nozzle cylinder portion 60, and there is a vertical gap between the lower surface of the nozzle cylinder portion 60 and the portion facing upward at the inner peripheral edge of the second air intake hole 65. A gap in the direction is provided.

  Guide ribs 67 and 68 extending in the vertical direction are provided on the inner peripheral surface of the exterior cylinder portion 55. The guide ribs 67 and 68 can be slidably contacted with the guide tube portion 20 from the radially outer side to the inner guide convex portion 23 in the illustrated example when the pressing head 7 is obliquely pressed. The guide ribs 67 and 68 are arrange | positioned in each part located in the other side among the exterior cylinder parts 55 on both sides of the guide cylinder part 20 in radial direction. The guide ribs 67 and 68 are provided with a first guide rib 67 and a second guide rib 68.

  The first guide rib 67 is disposed in front of the exterior cylinder portion 55, and is disposed in a portion of the front that is located below the second intake hole 65. The upper end portion of the first guide rib 67 is located below the inner peripheral edge of the second intake hole 65. A lower end portion of the first guide rib 67 is connected to the outer guide convex portion 63. The first guide rib 67 extends straight in the vertical direction and is smoothly connected to the surface of the outer guide convex portion 63.

  Although not particularly illustrated, three first guide ribs 67 are provided in front of the exterior cylinder portion 55 at intervals in the circumferential direction. The three first guide ribs 67 are arranged at equal intervals in the circumferential direction. Among the three first guide ribs 67, the one located at the center in the circumferential direction is disposed in front of the axis O.

  The second guide rib 68 is disposed at the rear portion, which is a portion located on the opposite side of the first guide rib 67 with the guide cylinder portion 20 sandwiched in the radial direction. The second guide rib 68 is formed over the entire length of the rear portion of the exterior cylinder portion 55 in the vertical direction. The lower end portion of the second guide rib 68 is connected to the outer guide convex portion 63. The second guide rib 68 extends straight in the vertical direction and is smoothly connected to the surface of the outer guide convex portion 63.

  Although not particularly illustrated, two second guide ribs 68 are provided at the rear portion of the outer tube portion 55 with a circumferential interval. The two second guide ribs 68 are arranged so as to avoid a portion of the exterior cylinder portion 55 that is positioned in front of the rear with respect to the axis O.

  The top wall portion 56 of the head body 54 protrudes downward and is disposed at intervals in the circumferential direction, and is engaged with each of the inner peripheral edges of the intake holes 64 and 65 facing inward in the circumferential direction. A locking portion 69 is provided.

  The pair of locking portions 69 is provided in each of the first intake holes 64, and is disposed in each portion located on both sides in the left-right direction in the top wall portion 56. The locking portion 69 is formed in a plate shape extending in the radial direction, and extends straight along the left-right direction in the plan view. And the surface which faces the circumferential direction in the latching | locking part 69 latches to the inner periphery of the 1st inlet hole 64, and adjoins or contact | abuts to this inner periphery.

  The locking portion 69 connects the mounting tube portion 57 and the fitting tube portion 58, and the radially inner end of the locking portion 69 is connected to the mounting tube portion 57, and the radially outer end. The part is connected to the fitting cylinder part 58.

  Although not particularly illustrated, the vertical size of the locking portion 69 is reduced stepwise from the inner side to the outer side in the radial direction. Of the locking portion 69, the in-cylinder portion located on the inner side in the radial direction with respect to the outer cylinder portion 55 is located on the outer side in the radial direction with respect to the in-cylinder portion, and is located in the first intake hole 64 It protrudes downward. The in-cylinder portion supports the exterior cylinder portion 55 from the inside in the radial direction, and is in close proximity to or in contact with the inner peripheral surface of the exterior cylinder portion 55 from the inside in the radial direction.

  The top wall portion 56 is provided with support plate portions 70 that protrude downward and extend in the radial direction, and are arranged in the circumferential direction. The support plate portion 70 is provided radially around the axis O in the plan view, and is intermittently disposed over the entire circumference in the circumferential direction. The support plate portion 70 is disposed at a position that avoids the circumferential direction between the pair of locking portions 69 and the nozzle cylinder portion 60.

  The radially inner end of the support plate part 70 is connected to the mounting cylinder part 57. The outer end portion in the radial direction of the support plate portion 70 supports the exterior cylinder portion 55 from the inside in the radial direction, and approaches or abuts the inner peripheral surface of the exterior cylinder portion 55 from the inside in the radial direction. A plurality of support plate portions 70 are arranged at intervals in the circumferential direction to constitute a plate portion row, and the outer cylinder portion 55 is fitted to the plate portion row from the outside.

  The former dispenser 1 configured as described above moves the stem 5 downward by pushing down the pressing head 7, thereby transferring the contents in the container body 2 and mixing them with air, and mixing these gas and liquid The foam-like contents formed by foaming the body are discharged from the discharge holes 6.

When the discharge container 10 is used, after the regulating member 24 is detached from the mounting cap 4, the pressing head 7 is pushed downward with respect to the container body 2, and the stem 5 and the liquid piston 11 are pushed down integrally.
At this time, the inner sliding cylinder 46 of the air piston 13 relatively moves outside the portion corresponding to the air piston of the lower stem 38, and the upper end portion of the inner sliding cylinder 46 moves on the inner peripheral surface of the upper stem 39. By sliding, the vertical position of the air piston 13 is maintained. As a result, a communication gap is provided between the flange portion 40 of the lower stem 38 and the lower end edge of the inner sliding cylinder 46 of the air piston 13 to communicate the air introduction path 52 and the lower chamber of the air cylinder 14. The lower chamber and the gas-liquid mixing chamber 15 are communicated with each other. At this time, the valve member 35 is also moved downward, the lower valve body 37 of the valve member 35 is seated on the tapered cylindrical portion 27 of the liquid cylinder 12, and the lower end opening of the liquid cylinder 12 is closed.

  When the pressing head 7 is pushed down until the lower end edge of the upper stem 39 contacts the first guide rib 31 of the inner sliding cylinder 46 of the air piston 13, the air piston 13 moves downward together with the pressing head 7. The outer sliding cylinder 45 of the piston 13 slides downward on the inner peripheral surface of the peripheral wall of the air cylinder 14.

  At this time, the valve body 49 that contacts the connecting plate 47 of the air piston 13 from below is kept in close contact with the lower surface of the connecting plate 47, and the air hole 48 is closed. Thereby, the air in the lower chamber of the air cylinder 14 is compressed, and this air is transferred to the gas-liquid mixing chamber 15 through the communication gap and the air introduction path 52. At this time, while the lower end opening of the liquid cylinder 12 is closed, the urging member 34 is compressed and deformed, the liquid piston 11 is moved downward, and the upper valve body 36 of the valve member 35 is moved to the liquid state. The piston 11 is separated from the valve seat portion (small diameter portion 30). As a result, the inside of the liquid cylinder 12 communicates with the inside of the upper portion of the lower stem 38, and the contents in the liquid cylinder 12 pass through the inside of the valve seat portion and the outside of the upper valve body 36, The discharge valve 51 is pushed up, passes through the inside of the valve seat 41, and is transferred to the gas-liquid mixing chamber 15.

  As described above, by pushing down the pressing head 7, air and contents are transferred to the gas-liquid mixing chamber 15, and these are merged and mixed in the gas-liquid mixing chamber 15. This gas-liquid mixture is transferred to the foaming member 16 and is passed through the lower foam element 53 and the upper foam element 53 in succession to be foamed to form a nozzle cylinder 60. It flows through the inside and is discharged from the discharge hole 6.

  Thereafter, when the depression of the pressing head 7 is released, the liquid piston 11 is pushed upward by the elastic restoring force of the urging member 34. As a result, the valve seat portion of the liquid piston 11 is closed in contact with the upper valve body 36 of the valve member 35, the transfer of the contents to the gas-liquid mixing chamber 15 is stopped, and the lower valve body 37 is The container body 2 and the liquid cylinder 12 communicate with each other, and the contents in the container body 2 flow into the liquid cylinder 12. At this time, the inside of the container main body 2 becomes negative pressure, and the air piston 13 of the air cylinder 14 passes through the introduction hole provided in the portion located above the outer sliding cylinder 45 in the air cylinder 14. Air in the upper chamber located above is introduced into the container body 2.

  In addition to the liquid piston 11 that rises in this way, the stem 5 and the pressing head 7 rise integrally, and the flange portion 40 of the lower stem 38 comes into contact with the lower end edge of the inner sliding cylinder 46 of the air piston 13. Thus, the communication between the lower chamber of the air cylinder 14 through the air introduction path 52 and the gas-liquid mixing chamber 15 is blocked, and the transfer of air to the gas-liquid mixing chamber 15 is stopped. Thereafter, the air piston 13 is pushed up by the elastic restoring force of the urging member 34, so that the lower chamber is in a negative pressure state, and the valve body 49 of the air piston 13 is elastically deformed downward, and the air hole 48. Is released. Accordingly, outside air is supplied from the outside of the container to the lower chamber of the air cylinder 14 through the air hole 48, the upper chamber of the air cylinder 14, the guide cylinder portion 20, and the exterior cylinder portion 55.

According to the former dispenser 1 of the present embodiment described above, the insertion portion (specifically, the mounting cylinder portion 57, the lower portion of the upper stem 39, and the insertion portion inserted into the guide portion 18 of the mounting cap 4 in the discharger 8). Out of the outer peripheral surface of the inner sliding cylinder 46) of the air piston 13 and the inner peripheral surface of the guide portion 18 (specifically, the guide cylinder portion 20 and the insertion cylinder 22 of the top wall portion 19) of the mounting cap 4. On one side, the guide rib 25 that can slide up and down with respect to the other is provided, so that the following remarkable effects are achieved.
That is, when the pressing head 7 is pushed down, the guide rib 25 provided on the one side does not move straight in the downward direction but the guide rib 25 provided on the one side is on the other peripheral surface. By moving up and down while sliding in contact with the mounting cap 4, it is possible to suppress the diagonal depression of the discharge device 8 with respect to the mounting cap 4 (that is, the diagonal depression forward or diagonally backward, not directly below) and rattling.
As described above, when the pressing head 7 is pressed down, it is possible to prevent the discharger 8 from being obliquely pressed or rattling (hereinafter abbreviated as rattling) with respect to the mounting cap 4. It is possible to stabilize the positional relationship in the radial direction with respect to 4, and the push-down operation is stabilized and the operability is improved.

  Further, as the guide rib 25, the first guide rib 31 slidable up and down relative to the other is provided on either the inner sliding cylinder 46 of the air piston 13 or the top wall portion 19 of the mounting cap 4. In addition, rattling or the like when the air piston 13 of the discharger 8 moves up and down with respect to the top wall portion 19 of the mounting cap 4 is suppressed, and the above-described effects can be obtained more significantly.

  Further, the top wall portion 19 of the mounting cap 4 is provided with the insertion cylinder 22 into which the inner sliding cylinder 46 of the air piston 13 is inserted. The contactable length along the direction can be easily secured, and the effect of suppressing the rattling or the like of the discharger 8 described above becomes more remarkable.

  In the present embodiment, the first guide rib 31 is provided on the inner sliding cylinder 46 of the air piston 13. Here, the inner sliding cylinder 46 of the air piston 13 is inserted into the top 5 of the mounting cap 4 together with the stem 5 and is inserted into the stem 5. It becomes easier to ensure the length of the one guide rib 31 along the vertical direction, and the effect of suppressing the rattling or the like of the discharger 8 described above becomes more remarkable.

Further, as the guide rib 25, the second guide rib 32 that can be slid up and down relative to the other is provided on either the mounting cylinder portion 57 of the pressing head 7 or the guide cylinder portion 20 of the mounting cap 4. The rattling or the like when the pressing head 7 of the ejector 8 moves up and down with respect to the guide cylinder portion 20 of the cap 4 is suppressed, and the above-described effect becomes more remarkable.
Further, in this case, the first guide rib 31 and the second guide rib 32 in the guide rib 25 can be arranged at different positions along the vertical direction (can be arranged apart from each other in the vertical direction). Remarkably suppressed.

  In addition, since the guide ribs 67 and 68 protrude from the inner peripheral surface of the exterior cylinder part 55, the guide cylinder part 20 is placed on the guide ribs 67 and 68, for example, when the pressing head 7 is obliquely pressed. The guide cylinder 20 can regulate the displacement of the outer cylinder 55 in the radial direction. Thereby, it is possible to stabilize the radial position of the exterior cylinder portion 55, to suppress the wobbling of the pressing head 7 with respect to the mounting cap 4, and to the radial position between the exterior cylinder portion 55 and the head main body 54. The relationship can be stabilized, and the operability of the former dispenser 1 can be ensured even if the head main body 54 and the exterior cylinder portion 55 are formed separately.

  In addition, since the guide ribs 67 and 68 are disposed in each part of the exterior cylinder part 55 that is located on the opposite side of the guide cylinder part 20 in the radial direction, when the pressing head 7 is obliquely pressed, The guide ribs 67 and 68 can be slidably contacted with the guide tube portion 20 from both outer sides in the radial direction, and the radial position of the exterior tube portion 55 can be further stabilized.

  In addition, since the first guide rib 67 and the second guide rib 68 are arranged in each part located on both sides in the front-rear direction of the exterior cylinder portion 55, the first guide rib 67 and the second guide rib 68 are first when the pressing head 7 is pressed obliquely. With the guide rib 67 and the second guide rib 68, the position of the exterior cylinder portion 55 in the front-rear direction can be stabilized. Therefore, when the pressing head 7 is pressed, even if an external force that pushes down the front end portion of the nozzle cylinder portion 60 and tilts the pressing head 7 is applied, the wobbling of the pressing head 7 with respect to the mounting cap 4 is effective. And the positional relationship in the front-rear direction between the exterior cylinder portion 55 and the head main body 54 can be reliably stabilized.

Moreover, since the intake holes 64 and 65 are formed in the upper end part of the exterior cylinder part 55, the following effect is acquired.
That is, for example, in a former dispenser in which the outer cylinder portion 55 is not provided with the intake holes 64 and 65 as in the prior art, when the pressing head 7 is restored and moved upward, the outside air is transferred to the inner periphery of the outer tube portion 55. Suction into the exterior cylinder 55 through a gap between the surface and the outer peripheral surface of the guide cylinder 20 (hereinafter referred to as “inter-cylinder gap”), and into the air cylinder 14 through the guide cylinder 20. Become. Here, if foreign matter such as water adheres on the outer surface of the mounting cap 4, the foreign matter is sucked into the exterior cylinder portion 55 through the gap between the cylinders together with the air when the pressing head 7 is restored and moved upward. And may enter the air cylinder 14.

  On the other hand, in the former dispenser 1 of the present embodiment, since the intake holes 64 and 65 are formed at the upper end portion of the exterior cylinder portion 55, the pressing of the pressing head 7 is released and the inside of the air cylinder 14 is kept. When the negative pressure is reached, the outside air can be sucked into the exterior cylinder portion 55 through the intake holes 64 and 65. As a result, it is possible to prevent outside air from being sucked into the exterior cylinder part 55 through the inter-cylinder gap, and to prevent foreign matter from being sucked into the exterior cylinder part 55 together with outside air from the inter-cylinder gap. Intrusion of foreign matter into the cylinder 14 can be suppressed.

Further, since the intake holes 64 and 65 are formed in the upper end portion of the exterior cylinder portion 55, the influence of the intake holes 64 and 65 on the appearance of the press-down head 7 can be reduced.
Further, since the intake holes 64 and 65 are opened upward, for example, when the exterior cylinder portion 55 is molded with a mold, it is possible to easily remove the mold. The mar dispenser 1 can be easily formed easily.

  Further, since the recess 66 is formed in the opening peripheral edge of the intake holes 64, 65 on the outer peripheral surface of the exterior cylinder portion 55, it is difficult for foreign matters such as water to enter, and the outside air passes through the recess 66. , 65 and the outside air can be effectively sucked into the exterior cylinder portion 55.

  Further, since the head main body 54 is provided with the covering wall portion 59, it is possible to prevent the intake holes 64 and 65 from being exposed to the outside, and to easily ensure the appearance of the former dispenser 1. Can do.

Further, since the top wall portion 56 is provided with a pair of locking portions 69, when the head main body 54 and the exterior cylinder portion 55 try to rotate relative to each other in the circumferential direction, the locking portion 69 becomes the intake hole. The rotation can be restricted by engaging with the inner peripheral edges of 64 and 65. Further, when the exterior cylinder portion 55 is to be deformed so as to narrow the intake holes 64 and 65 in the circumferential direction, the locking portion 69 is locked to the inner peripheral edge of the intake holes 64 and 65, thereby restricting the deformation. You can also
Further, since the pair of locking portions 69 are arranged at intervals in the circumferential direction, the inside and the outside of the outer cylinder portion 55 are connected to the intake holes 64 while restricting the rotation and deformation as described above. In 65, it is possible to reliably communicate with each other through a portion located between the pair of locking portions 69, and the outside air can be reliably sucked into the exterior cylinder portion 55 through the intake holes 64, 65.
Note that, as in this embodiment, the top wall portion 56 is provided with a fitting cylinder portion 58 that protrudes downward and is fitted to the mounting cylinder portion 57 from the outside. However, when the mounting cylinder part 57 and the fitting cylinder part 58 are connected, when the locking part 69 is locked to the inner peripheral edge of the intake holes 64, 65, the radial direction of the locking part 69 is increased. Both end portions can be supported by the mounting tube portion 57 and the fitting tube portion 58, and the above-described rotation and deformation can be effectively restricted.

  In addition, a plurality of support plate portions 70 are arranged on the top wall portion 56, and the radially inner end portion of the support plate portion 70 is connected to the mounting tube portion 57 and the support plate portion 70 in the radial direction. The outer end portion supports the outer tube portion 55 from the inner side in the radial direction. Therefore, for example, when the exterior cylinder portion 55 is loose in the radial direction with respect to the head body 54, the exterior cylinder portion 55 is supported by the top wall portion 56 and the mounting cylinder portion 57 via the support plate portion 70. Can be made. Thereby, it becomes possible to attach the exterior cylinder part 55 firmly to the head main body 54, and for example, rattling between the exterior cylinder part 55 and the head main body 54 can be suppressed.

  Moreover, since the fitting cylinder part 58 is provided in the top wall part 56, it becomes possible to clamp the exterior cylinder part 55 in the radial direction between the support plate part 70 and the fitting cylinder part 58, The outer cylinder portion 55 can be attached to the head main body 54 more firmly.

  Moreover, since the said cylinder inner part located in the radial inside rather than the exterior cylinder part 55 supports the exterior cylinder part 55 from the radial inside among the latching | locking parts 69, it is not only the support plate part 70. The outer cylinder portion 55 can be supported from the inside in the radial direction also by the inner portion of the locking portion 69, and the outer cylinder portion 55 can be attached to the head body 54 more firmly.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the first guide rib 31 is formed on the inner sliding cylinder 46 and is slidable up and down on the insertion cylinder 22 of the top wall portion 19. However, the present invention is not limited thereto. Instead, the first guide rib 31 may be formed on the insertion cylinder 22 and slidable up and down on the inner sliding cylinder 46.
In addition, the second guide rib 32 is formed on the guide tube portion 20 and can be slid up and down on the mounting tube portion 57. However, the present invention is not limited to this. In addition to being formed in the mounting cylinder portion 57, the guide cylinder portion 20 may be slidable up and down.
Further, the guide rib 25 may be formed in a lower portion of the upper stem 39 so as to be slidable up and down with respect to the guide portion 18.

  Further, the regulating member 24 may not be provided.

Moreover, in the above-mentioned embodiment, although the guide ribs 67 and 68 are provided with the 1st guide rib 67 and the 2nd guide rib 68, it is not limited to this. For example, the guide ribs may be disposed at each portion located on both sides in the left-right direction on the inner peripheral surface of the exterior cylinder portion 55.
Moreover, the guide ribs 67 and 68 do not need to be arrange | positioned in each part located in the other side among the exterior cylinder parts 55 on both sides of the guide cylinder part 20 in radial direction. Furthermore, the guide ribs 67 and 68 may not be provided.

  Further, the in-cylinder portion of the locking portion 69 may not support the outer cylinder portion 55 from the inside in the radial direction. Further, the locking part 69 may not connect the mounting cylinder part 57 and the fitting cylinder part 58. Further, the locking portion 69 may not be provided.

  Moreover, the nozzle cylinder part 60, the fitting cylinder part 58, and the covering wall part 59 do not need to be provided. In this case, for example, the discharge hole 6 may be formed by a through-hole penetrating the exterior cylinder portion 55. Further, the support plate portion 70 may not be provided.

Further, the recess 66 may be omitted.
In addition, although the intake holes 64 and 65 include the first intake holes 64 and the second intake holes 65, the present invention is not limited to this. For example, at least one of a first intake hole and a second intake hole may be provided as the intake hole.
Further, the intake holes 64 and 65 may not be provided.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Former dispenser 2 Container body 3 Mouth part 4 Mounting cap 5 Stem 6 Discharge hole 7 Press head 8 Discharger 11 Liquid piston 12 Liquid cylinder 13 Air piston 14 Air cylinder 15 Gas-liquid mixing chamber 16 Foaming member 18 Guide Part 19 Top wall part 20 Guide cylinder part 22 Insertion cylinder 25 Guide rib 31 First guide rib 32 Second guide rib 46 Inner sliding cylinder 56 Top wall part 57 Installation cylinder part

Claims (5)

A mounting cap mounted on the mouth of the container body in which the contents are stored;
A stem erected on the mounting cap so as to be movable downward in an upwardly biased state, and a discharger having a pressing head mounted on the stem and having a discharge hole formed thereon,
The dispenser is
A liquid piston that moves up and down in conjunction with the stem;
A liquid cylinder in which the liquid piston is slidable in the vertical direction;
An air piston that moves up and down in conjunction with the stem;
An air cylinder in which the piston for air is slidable in the vertical direction;
A gas-liquid mixing chamber for mixing the contents transferred from the liquid cylinder and the air transferred from the air cylinder;
A foam dispenser that is disposed between the gas-liquid mixing chamber and the discharge hole and foams the gas-liquid mixture mixed in the gas-liquid mixing chamber,
The mounting cap includes a guide portion through which the discharger is inserted vertically.
Either one of the outer peripheral surface of the insertion portion inserted into the guide portion and the inner peripheral surface of the guide portion of the discharger is provided with a guide rib that can slide up and down with respect to the other. Former dispenser characterized by. The former dispenser according to claim 1,
The piston for air includes an inner sliding cylinder that is extrapolated to be movable up and down with respect to the stem.
The guide portion includes an annular ceiling wall portion that is disposed on the mouth portion and through which the stem is inserted, and a guide tube portion that is erected on an inner peripheral edge portion of the ceiling wall portion,
The former dispenser characterized in that the guide rib has a first guide rib which is provided on one of the inner sliding cylinder and the top wall and is slidable on the other. The former dispenser according to claim 2,
The former dispenser characterized in that an insertion cylinder into which the inner sliding cylinder is inserted is provided on the top wall portion. A former dispenser according to claim 2 or 3,
The former dispenser, wherein the first guide rib is provided on the inner sliding cylinder. It is a former dispenser as described in any one of Claims 2-4,
The pressing head has a top wall portion disposed above the stem, and a mounting cylinder portion that extends downward from the top wall portion and is attached to the stem.
The former dispenser, wherein the guide rib has a second guide rib that is provided on one of the mounting cylinder and the guide cylinder and is slidable on the other.

Images