JP3527332B2 - Pump container - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a pump container.

[0002]

2. Description of the Related Art As a pump container, a piston that vertically moves in a cylinder that hangs inside the container is provided so as to protrude from the outer periphery of the lower end of the stem, and a push-down head with a nozzle is fixed to the upper end of the stem, and this head is mounted above the cylinder. A so-called push-down type pump container is known which has an actuating member that is vertically movable in a biased state and is configured to suck up the liquid in the container body and to pour it out through a nozzle hole by the vertical movement of the actuating member. Has been.

In these pump containers, a discharge valve is generally provided in the stem of the operating member, and a suction valve is provided in the lower portion of the cylinder.

Further, since each of these valves is generally constructed by placing a ball-shaped valve element on a valve seat, when the container is accidentally tilted, the valve element moves and the stored liquid contains nozzle holes. This causes the inconvenience of more leakage.

For the purpose of eliminating such inconvenience, it has been proposed to use a vertically elongated rod-shaped member having a special structure as a suction valve element constituting a suction valve.

These rod-shaped members are in the form of vertically long rods extending from the bottom of the cylinder to the inside of the stem, and are mounted so that they can be moved up and down by a small stroke upward from the state where the suction valve hole at the bottom of the cylinder is closed. Further, the upper end inserted into the stem is formed in a large diameter portion, and when the actuating member is at the highest position, the seal ridge on the inner surface of the stem is pressure-contacted with the lower surface of the large diameter portion. Therefore, even if the container is tilted, the seal between the large-diameter portion and the seal projection is unlikely to come off, and unless the operation member is pushed down, the communication between the inside of the cylinder and the outside is always interrupted, and inadvertent leakage of liquid can be prevented. It is a thing.

[0007]

However, in the conventional pump container provided with this kind of rod-shaped member, since the operating member is always in the upward protruding state, the operating member is pushed down against the intention and the liquid leaks out. There is a risk of waking up. Therefore, in this type of container, a cover cap is attached to prevent the operating member from being pushed down. The cover cap is
For example, the lower end of the peripheral wall is detachably fitted to the outer periphery of the shoulder portion of the container body and mounted.

Although the above-mentioned inconvenience can be solved by the existence of the cover cap, there is a disadvantage that the projection width of the nozzle is limited.

Therefore, in the present invention, even without these cover caps, it is possible to prevent the operating member from being inadvertently pushed down, and to prevent the liquid from leaking when the container is tilted.
Moreover, as in the prior art, the present invention proposes an excellent pump container that also has the effect of preventing leakage of liquid when the container is tilted with the operating member protruding.

Further, the present invention proposes a container in which the sealed portion can obtain a reliable hermeticity regardless of a dimensional error of a member and the like, and as a result, the above effects can be more stably exhibited.

[0011]

[Means for Solving the Problems] In order to solve the above problems, the container of the present invention has a container body 2 in which a mouth / neck portion 9 is erected.
A cylinder 4 having a lower end suspended from the inside of the container by a mounting cap 3 fitted to the mouth and neck, and a stem 26 having a piston 25 sliding on the inner surface of the cylinder protruding from the outer periphery of the lower end.
The lowering head 28 is fixed to the upper end, and the actuating member 5 is mounted so as to be movable up and down while being urged upward, and the suction valve hole 21 at the lower end of the cylinder is closed so that it can be moved upward and downward by a small stroke. In addition to making a vertically long rod shape, insert the upper part into the stem and form the large diameter part 41 at the upper end,
In addition, the rod-shaped member 6 configured so that the seal projection 42 on the inner surface of the stem presses and seals on the lower surface of the large diameter portion when the actuating member is at the highest position, the vertical movement of the actuating member 5 causes the liquid in the container body to move. In a pump container configured to eject from an ejection port, the actuating member is configured to be capable of being locked in a depressed state, and the rod stopper portion 45 is provided so as to project from the center of the upper surface of the rod-shaped member to perform the operation described above. In the pump container, the rod plug portion 45 is configured to be closely fitted to the through hole 47 at the center of the flange 46 provided in the stem 26 when the member is pushed down and locked.

A container according to a second aspect of the present invention is a container body 2 in which a mouth / neck portion 9 is erected, a mounting cap 3 fitted to the mouth / neck portion, fixed to the container body by the cap, and hung down into the container body. Cylinder member 4A comprising a large diameter cylinder 50 and a small diameter cylinder 51 concentrically provided with the cylinder.
A small-diameter cylindrical piston 54 fitted to the upper part of the inner circumference of the small-diameter cylinder and protruding from the lower part of the outer circumference, and a stem 26 that is vertically movably mounted in an upwardly biased state, and extends to the upper end of the stem. A push-down head 28 protruding vertically above the mounting cap, and a discharge valve 35 provided in an upper portion inside the stem.
And a foam member fitted and fixed in the liquid passage downstream of the discharge valve
58, a vent passage 56 having one end opened to the inner surface of the stem downstream of the discharge valve and upstream of the foaming member, and having the other end opened to a downward annular recess provided around the outer surface of the lower stem, and inside the large-diameter cylinder. An outer cylinder 60 fitted to the peripheral portion is provided so as to project from the outer peripheral edge, and an upper end edge of the inner cylinder 59 peripherally provided to the inner peripheral edge portion is fitted to the inner and outer surfaces of the annular recess in an airtight and vertically slidable manner, and From a state in which the large-diameter cylindrical piston 55, which is brought into airtight contact with the upper surface of the outward flange-shaped wall 63 having the lower end edge of the inner cylinder 59 protruding below the annular recess, and the suction valve hole 21 at the lower end of the small-diameter cylinder are closed. It has a vertically long rod shape that allows it to move up and down with a small stroke upward, and inserts the upper part into the stem to form a large diameter part 41 at the upper end, and when the actuating member is in the most raised state, the large diameter part is formed. Make sure that the seal ridges 42 on the inner surface of the stem are pressed against the bottom surface of the For ejecting bubbles, the rod-shaped member 6 is formed, and the liquid in the small-diameter cylinder merges with the air in the large-diameter cylinder by pushing down the head to foam through the foaming member and eject from the ejection port of the head. In the pump container described above, the head can be locked in a depressed state, and a rod plug portion 45 is provided so as to project from the center of the upper surface of the rod-shaped member, and the rod is pushed in the depressed state. The plug container (45) is configured so as to be closely fitted to the through hole (47) at the center of the flange (46) provided inside the stem (26).

The container according to the third aspect of the present invention has the through hole 47.
However, the through hole 47 in the short tube 38 that penetrates through the center of the flange 46
The pump container according to claim 1 or claim 2 is

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the pump container 1 according to the first aspect of the present invention includes a container body 2, a mounting cap 3, a cylinder 4, an operating member 5, and a rod-shaped member 6. The container body 2 is configured by erecting a mouth / neck portion 9 from a top edge of the body portion 7 via a shoulder portion 8.

The mounting cap 3 has a screw cylinder 10 threadedly attached to the outer circumference of the mouth and neck, and extends vertically from the rear surface of the peripheral edge of the top wall 11. A window hole for inserting the operating member 5 is provided in the center of the top wall. A guide tube 12 is provided upright above the peripheral edge of the window hole, and is detachably attached to the container body. In addition, the peripheral wall 13 hung from the peripheral edge of the top wall is hung on the peripheral edge of the upper surface of the shoulder of the container body, and the seal cylinder 14 and the intake valve locking cylinder 15 are hung from the rear surface of the top wall.

In the cylinder 4, the upper end of the peripheral wall 16 is expanded in two steps, and a fitting cylinder 18 is erected in a double cylindrical shape via a flange 17 protruding from the upper outer surface of the upper expanded portion. The fitting cylinder is fitted and fixed between the seal cylinder 14 and the upper end of the screw cylinder 10 and fixed to the mounting cap 3. Further, a through hole 19 for introducing outside air is formed in the base end portion of the cylinder. Furthermore, the bottom wall of the cylinder 4
The reference numeral 20 is formed in a taper shape that descends to the center, a central portion thereof is opened to form a suction valve hole 21, and a fitting cylinder portion 22 is vertically provided below the peripheral edge of the valve hole. The upper end of the suction pipe 23 is fitted to the fitting cylinder portion 22, and the lower end thereof is hung below the lower part of the container body.

A plurality of locking ribs 24 are provided on the lower end of the cylinder 4 in the circumferential direction so as to extend from the peripheral edge of the bottom wall to the lower end of the peripheral wall. Each of the locking ribs has an upwardly stepped portion formed on the upper portion of the inner edge thereof.

The actuating member 5 comprises a cylindrical piston 25 which slides up and down on the inner circumference of the cylinder 4 projecting from the outer circumference of the lower end of the stem 26, and a push-down head 28 with a nozzle 27 fitted and fixed on the upper end of the stem. is doing. Further, a coil spring 29 is interposed between the upwardly facing stepped portion of each locking rib 24 and the lower surface of the cylindrical piston 25 so that it is always provided above.

In the illustrated example, the cylindrical piston 25 has a cylindrical portion.
30 is erected and the tubular portion is fitted into the lower portion of the stem 26.

The push-down head 28 has a nozzle 27 that extends forward from the upper end of a stem fitting cylinder 31 fitted to the outer periphery of the upper end of the stem.
And the top plate 32 with the stem fitting cylinder upper end opened.
A peripheral wall 33 extends vertically from the peripheral edge, and a screw thread is provided around the inner surface of the peripheral wall below the top plate. A lid cap 34 is fitted in the peripheral wall above the top plate. Then, the inner surface of the peripheral wall is screwed onto the outer surface of the guide tube 12 of the mounting cap 3 so that the operating member 5 can be locked in the depressed state.

A discharge valve 35 is provided at an upper portion inside the stem 26 of the operating member 5.
Further, a suction valve 36 is provided in the lower portion of the cylinder 4.

The discharge valve 35 is provided with a short cylinder 38 penetrating the central portion of a flange 37 protruding from the upper part of the inside of the stem, and the upper end opening of this short cylinder is formed as a discharge valve hole. The valve body 39 is mounted on the valve body 39. The valve body 39 is
The vertical movement is restricted by the blocking piece 40 that hangs above it.

The suction valve 36 is constructed by closing the suction valve hole 21 of the cylinder 4 by the lower surface of the rod-shaped member 6 so that it can be opened and closed.

The rod-shaped member 6 has a vertically long rod-like shape which is mounted such that the lower surface of the rod-shaped member 6 can move up and down by a small stroke upward from the state in which the suction valve hole 21 is closed, and the upper portion is inserted into the stem. A large diameter portion 41 is formed at the upper end, and the seal projection 42 on the inner surface of the stem is pressure-contacted with the lower surface of the large diameter portion 41 when the actuating member is at the highest position.

In the illustrated example, a plurality of circumferential projections are provided on the lower periphery.
43 is provided so that it can move up and down from a state where the lower surface is in close contact with the cylinder bottom wall 20 to a state where each of the protrusions 43 is brought into contact with and locked to the lower surface of the coil spring 29.

The large-diameter portion 41 of the rod-shaped member 6 is formed in an upward skirt shape, and is equidistant in the circumferential direction from immediately below the flange 37 on the inner surface of the cylinder to immediately above the upper end of the seal projection 42. The outer surface of the vertical rib 44 is slidable on the inner peripheral surface of three vertical ribs.

Further, in the present invention, a rod plug portion 45 is provided so as to project from the center of the upper surface of the rod-shaped member 6, and when the actuating member 5 is pushed down and locked, the rod plug portion 45 is provided at the center of the flange 46 provided in the stem. The through hole 47 is closely fitted.

In the illustrated example, the rod stopper is a hollow cylindrical rod stopper 45.
The flange 37 for forming the discharge valve 35 and the inside of the short cylinder 38 also serve as the flange 46 and the through hole 47. Further, a small protrusion 65 is provided around the outer peripheral surface of the rod stopper 45, and the presence of the small protrusion 65 allows the rod stopper to enter the through hole 47.
It is constructed so that 45 can be easily inserted and good airtightness can be obtained. A plurality of small protrusions 65 may be provided.

Further, in this embodiment, the intake valve body 48 is fitted to the outer surface of the intake valve locking cylinder 15 which is vertically provided from the lower surface of the mounting cap 3. The valve body has an elastic reverse skirt portion projecting upward and outward from the lower outer surface of the cylindrical portion that is fitted onto the outer surface of the locking cylinder, and the tip portion thereof is the inner surface of the upper expanded portion of the cylinder peripheral wall 16. The intake valve 49 is formed by press-contacting with.

When the pump container 1 constructed as described above is used, for example, from the state shown in FIG.
When the operating member 5 is lowered by pressing 28, the rod-shaped member 6 is lowered due to the frictional force between the outer circumference of the large diameter portion 41 and the vertical rib 44 in the stem to close the suction valve hole 21. The liquid in the cylinder pressurized by the descending operating member is discharged
Open 35 and discharge from the tip of the nozzle.

When the head 28 is released, the spring 29 is released.
The action member 5 rises due to the action of the
The inside becomes negative pressure, the discharge valve 35 is closed, and the negative pressure inside the cylinder causes the rod-shaped member 6 to rise due to the frictional force between the large-diameter portion 41 and the vertical ribs 44, so that the liquid in the container body Will be introduced to. Then, when the operating member 5 reaches the highest position, the sealing ridge 42 in the cylinder is pressed against the lower surface of the large diameter portion 41 to seal, and even if the container falls down in this state, the liquid is prevented from leaking. ing. Further, at this time, the outside air is introduced from the intake valve 49 through the through hole 19 of the cylinder into the container body whose pressure has been reduced by the discharge of the liquid.

When the container 1 is not in use, when the operating member 5 is pushed down and the peripheral wall 33 of the head 28 is screwed onto the outer periphery of the guide tube 12 of the mounting cap, the lower surface of the rod member 6 closes the suction valve hole 21 and The rod plug portion 45 is tightly fitted in the short cylinder 38 to completely block the communication between the inside of the cylinder and the outside.

FIG. 3 and FIG. 4 show an embodiment of the present invention as claimed in claim 2 of the present invention. The container of this embodiment is a pump container for spraying bubbles, and has a container body 2, a mounting cap 3 and a cylinder member 4A.
And an operating member 5A. Of the above-mentioned members, except for the cylinder member 4A and the actuating member 5A, the structure is substantially the same as that of the above-described embodiment, and therefore, the same parts will be denoted by the same reference numerals and description thereof will be omitted.

The cylinder member 4A has a large-diameter cylinder 50 for air in the upper half and a small-diameter cylinder 51 for liquid in the lower half. The upper end of the small-diameter cylinder is opened at the center of the bottom wall 52 of the large-diameter cylinder. ing. Further, the upper end of the peripheral wall 53 of the large diameter cylinder is fixed to the mounting cap 3 in the same manner as in the above embodiment. The internal structure of the small-diameter cylinder 51 is also similar to that of the cylinder 4 of the above embodiment, and the same locking rib 24 is provided on the bottom wall 51a.

The actuating member 5A comprises a small diameter cylindrical piston 54, a stem 26, a push-down head 28, and a large diameter cylindrical piston 55.

The small diameter cylindrical piston 54 is the small diameter cylinder described above.
51 It is slidably fitted on the upper part of the inner circumference. Also the stem
Reference numeral 26 designates a small-diameter cylindrical piston 54 projecting from the lower outer periphery, and a vertically downwardly movably mounted downwardly mounted push-down head 28 extending upwardly from the mounting cap so as to be vertically movable. is doing.

The upward biasing of the stem 26 has the same structure as that of the above-described embodiment, and the stem 26 is provided with the discharge valve 35, the seal ridge 42, and the vertical rib 44 having the same structure as that of the above-mentioned embodiment. There is.

The push-down head 28 has its stem fitting cylinder 31.
The inside of the lower part of the stem has a large inner diameter part, and the upper end of the stem is fitted in the lower half of the upper cylinder part.

Further, a foam member fitting cylinder 57 is inserted into the upper part of the stem fitting cylinder 31 with the lower part having a small outer diameter cylindrical part inserted into the upper end part of the stem. The foaming member fitting portion length of the fitting cylinder is formed to have a length such that a plurality of foaming members can be vertically stacked and fitted together. The small outside diameter cylinder part inserted into the upper end of the stem of the fitting cylinder 57 has an inward flange at its lower end, and the ball valve is pushed up by the liquid that has passed through the discharge valve from the bottom surface of the flange and the inward direction described above. The blocking piece 40 is hung so as not to block the flange hole of the flange.

A foam member is fitted in the foam member fitting cylinder 57. The foam member 58 is formed by stretching a foam net on the lower surface of the short cylinder. The outer diameter of the short cylinder is an outer diameter that can be fitted into the inner surface of the foam member fitting cylinder. It should be noted that another foaming member may be provided at the tip of the nozzle for the purpose of adjusting the bubble diameter as in the illustrated example.

In addition, one end is opened to the inner surface of the stem downstream of the discharge valve 35 and upstream of the foaming member 58, and the other end is opened to the annular recess formed around the outer surface of the lower stem.
Is provided. The downward annular recessed portion is formed by the large inner diameter portion of the lower end of the stem fitting cylinder 31 and the outer surface of the stem.

The large-diameter cylindrical piston 55 has an inner cylinder 59, which is slidably fitted to the outer surface of the upper portion of the stem 26, and an outer cylinder 60, which is fitted to the inner surface of the large-diameter cylinder. Cylinder 59 side is high,
The lower side of the outer cylinder 60 is formed by connecting horizontal plate portions at the upper and lower ends of a cylindrical flange with steps, and a plurality of outside air suction holes are formed in the flange portion adjacent to the inner cylinder. The upper end of the inner cylinder 59 is a thin elastic part that expands slightly upward and outward, and its tip is airtightly pressed against the inner surface of the large inner diameter part of the lower part of the stem fitting cylinder 31. Further, with a small gap between the inner cylinder 59 and the upper horizontal plate portion, a locking cylinder 61 is erected from the upper horizontal plate portion, and an outside air suction hole 62 is formed in the horizontal plate portion within the small gap. ing.
The large-diameter cylindrical piston 55 has a lower limit when the lower end of the inner cylinder 59 is fitted to the inner surface of the short cylinder of the outward flange wall 63 of the stem, and the lower end of the stem fitting cylinder 31 has a large-diameter cylindrical shape. piston
The upper and lower ends can be moved up and down with respect to the stem by a short stroke only when the outer air suction hole 62 is sealed by fitting the inner cylinder 59 and the locking cylinder 61 of 55 in an airtight manner. A plurality of grooves are bored on the outer surface of the stem portion where the inner cylinder 59 of the large-diameter cylindrical piston slides within the range of vertical movement by the small stroke, and when the groove lowers to the lower limit, the lower end of the groove and the large-diameter cylinder The communication with the inside is a large-diameter cylindrical piston.
It is cut off by contact with.

The outside air suction valve body 64 is fitted to the lower half outer surface of the inner cylinder 59 of the large-diameter cylindrical piston 55. The valve body is provided with a thin elastic outward flange-like wall projecting obliquely upward and outward from the lower end of the short cylinder fitted to the outer surface of the lower half of the inner cylinder, and the tip portion is formed as a thick wall portion. The upper surface of the thick portion is pressed against the lower surface of the intermediate horizontal plate portion to form an outside air intake valve.

A rod-shaped member 6 similar to that in the above-described embodiment is mounted in the small diameter cylinder 51, and an intake valve body 48 similar to that in the above-described embodiment is mounted on the upper end of the mounting cap 3 and the large-diameter cylinder 50. I have it.

In the container as described above, the operating member 5A is lowered by pushing down the push-down head 28, and the pressurized liquid in the small diameter cylinder 51 is introduced into the foaming member 58 through the discharge valve 35, and at the same time, the liquid is increased. The air in the radial cylinder 50 is
It is introduced into the foaming member 58 through, is foamed there, and is discharged from the nozzle 27.

Then, when the pushing down of the operating member is released,
The actuating member rises due to the force of the coil spring 29, the liquid inside the container inside the small-diameter cylinder that has been negatively pressured, the outside air inside the large-diameter cylinder through the outside air intake valve, and the upper part inside the container through the intake valve 49. The outside air is introduced into each. Further, the action of the rod-shaped member 6 is the same as that of the above-mentioned embodiment, and therefore its explanation is omitted.

The above-mentioned members are mainly made of synthetic resin and, if necessary, elastomer or the like.

[0048]

As described above, the pump container of the present invention is
With the above-described configuration, it is possible to prevent the actuating member from being inadvertently pushed down even without the cover cap, and as a result, there is no inconvenience that the protrusion width of the nozzle is limited. Further, since the communication between the inside and the outside of the cylinder is completely cut off when the head is pushed down and locked, it is possible to eliminate the inconvenience that the stored liquid leaks out even if the container is accidentally tilted. .

Moreover, even when the head is projected upward, the liquid can be prevented from leaking out when the container is accidentally tilted.

Further, since the rod plug portion at the upper end of the rod-shaped member is configured to closely fit into the through hole in the center of the flange laterally provided in the stem, dimensional error (especially dimensional error in the longitudinal direction) occurs in the rod-shaped member. Even if there is it, it is possible to obtain reliable airtightness.

Further, when the through hole in the center of the flange is a through hole in the short cylinder penetrating through the center of the flange, even if there is a dimensional error in the rod-shaped member, more reliable airtightness can be stably obtained. is there.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the head depressing locking state of the embodiment.

FIG. 3 is a vertical sectional view showing an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of the head depressing locking state of the embodiment.

5 is an enlarged view of an essential part of a suction valve portion in FIGS. 2 and 4. FIG.

FIG. 6 is an enlarged view of a main part of a discharge valve portion in FIGS. 2 and 4.

[Explanation of symbols]

2 ... Container body, 3 ... Mounting cap, 4 ... Cylinder, 4A ... Cylinder member, 5 ... Actuating member, 6 ... Rod member, 9 ... Mouth neck, 21 ... Suction valve hole, 25 ... Cylindrical piston, 26 ... Stem, 28 ... Pressing down head, 35 ... Discharge valve, 41 ... Large diameter part, 42
… Seal ridges, 45… Rod stoppers, 46… Flange, 47… Through holes,
50 ... Large diameter cylinder, 51 ... Small diameter cylinder, 54 ... Small diameter cylindrical piston, 55 ... Large diameter cylindrical piston, 56 ... Ventilation passage, 58 ... Foam member, 59 ... Inner cylinder, 60 ... Outer cylinder, 63 ... Outward direction Flange wall

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 47/34 B05B 11/00 101 B05B 1/02 101

Claims (3)

(57) [Claims] 1. A container body 2 in which a mouth / neck portion 9 is erected, a cylinder 4 having a lower end suspended in a container body by a mounting cap 3 fitted to the mouth / neck portion, and a piston 25 sliding on the inner surface of the cylinder. An operating member 5 having a push-down head 28 fixed to the upper end of a stem 26 projecting from the outer periphery of the lower end so as to be vertically movable in an upwardly biased state, and a suction valve hole at the lower end of the cylinder.
It has a vertically long rod shape that is mounted so that it can be moved up and down with a small stroke upward from the state of closing 21.The upper part is inserted into the stem to form a large diameter part 41 at the upper end, and the uppermost part of the operating member is formed. A rod-shaped member 6 is provided on the lower surface of the large-diameter portion in a raised state so that the seal projection 42 on the inner surface of the stem presses and seals. The vertical movement of the operating member 5 causes the liquid in the container body to be ejected from the ejection port of the head. In the constructed pump container, the operating member is configured to be capable of being locked in a depressed state, and the rod plug portion 45 is provided so as to project from the center of the upper surface of the rod-shaped member, and the operating member is depressed and locked. A pump container characterized in that the rod plug portion 45 is closely fitted to a through hole 47 at the center of a flange 46 provided laterally in the stem 26. 2. A container body 2 in which a mouth / neck portion 9 is erected, a mounting cap 3 fitted to the mouth / neck portion, a large-diameter cylinder 50 fixed to the container body by the cap and suspended in the container body, and Small diameter cylinder 51 concentric with cylinder
A cylinder member 4A, a small-diameter cylindrical piston 54 fitted to the upper part of the inner periphery of the small-diameter cylinder and protruding from the lower part of the outer periphery, and a stem 26 mounted so as to be vertically movable in an upwardly biased state, and an upper end of the stem. A push-down head 28 extending upward from the mounting cap so as to be movable upward and downward, a discharge valve 35 provided in the upper part of the stem, and a foam member fitted and fixed in a fluid passage downstream of the discharge valve. 58, a vent passage 56 having one end opened to the inner surface of the stem downstream of the discharge valve and upstream of the foaming member, and having the other end opened to a downward annular recess provided around the outer surface of the lower stem, and inside the large-diameter cylinder. An outer cylinder 60 fitted to the peripheral portion is provided so as to project from the outer peripheral edge, and an upper end edge of the inner cylinder 59 peripherally provided to the inner peripheral edge portion is fitted to the inner and outer surfaces of the annular recess in an airtight and vertically slidable manner, and Inner cylinder 59 Outside with the lower end edge protruding below the annular recess A large-diameter cylindrical piston 55 that is in airtight contact with the upper surface of the flange-shaped wall 63, and a vertically long rod that is mounted to allow upward and downward small stroke movements from the state where the suction valve hole 21 at the lower end of the small-diameter cylinder is closed. In addition, the upper portion is inserted into the stem to form a large diameter portion 41 at the upper end thereof, and the seal projection 42 on the inner surface of the stem is pressed and sealed to the lower surface of the large diameter portion when the actuating member is at the highest position. For ejecting bubbles, the rod-shaped member 6 is formed, and the liquid in the small-diameter cylinder merges with the air in the large-diameter cylinder by pushing down the head to foam through the foaming member and eject from the ejection port of the head. In the pump container described above, the head can be locked in a depressed state, and a rod plug portion 45 is provided so as to project from the center of the upper surface of the rod-shaped member, and the rod is pushed in the depressed state. The stopper 45 is the stem 2 A pump container, which is configured so as to be closely fitted to a through hole 47 in the center of a flange 46 provided laterally inside the pump container 6. 3. The through-hole 47 is a through-hole 47 in a short cylinder 38 provided so as to penetrate the center of the flange 46.
The pump container according to any one of 1.