JP7287881B2 - Liquid Dispenser for Container Attachment - Google Patents

Description

The present invention relates to a container-mounted liquid dispenser.

As this type of container-mounted liquid ejector, a cylindrical mounting member for mounting on the mouth and neck of a container body,
a cylinder member having a cylinder suspended from the inside of the mounting member and a joint tube standing from the upper end of the peripheral wall of the cylinder;
an actuating member main body having a lower half portion inserted into the peripheral wall portion so as to be liftable in an upward biased state;
a discharge head attached to the upper portion of the actuating member body;
a ring cap that is capped against the outer surface of the joint cylinder and is provided so that the discharge head can be screwed thereon in a state in which the operating member is pushed down against an upward biasing force. There is (Patent Document 1)
The ring cap has a hanging tube that faces the inner surface of the joint tube, and a detent protrusion that meshes with the inner surface of the joint tube and the outer surface of the hanging tube.
In this way, when the ejection head is screwed off from the ring cap, it is possible to avoid the problem that the ejection head cannot be unscrewed due to the rotation of the ring cap together with the ejection head.
Further, the ring cap has an insertion tube inserted between the operating member and the joint tube to prevent the lower half of the operating member from coming off.

JP 2015-163523

In Patent Document 1, since the anti-rotation protrusion is attached to the inner surface of the joint cylinder, it is possible to prevent the movement of parts (for example, a piston or a closing cylinder to be described later) of the operating member body to be inserted into the cylinder in the process of assembling the container. There is a possibility that the anti-rotation protrusion may hit and damage the device.
In the assembling work, there are cases where the ring cap is plugged into the joint cylinder after setting the operating member main body in the cylinder. By contacting the part, the ring cap is obliquely plugged, which may damage the main body of the operating member.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a container-mounted liquid dispenser in which the risk of damage to parts during assembly work is reduced.

The first means includes a cylindrical mounting member 2 for mounting on the mouth and neck of the container body,
A cylinder member 8 having a first check valve V1 formed in the lower portion of a peripheral wall portion 12 of the cylinder 10 that hangs down from the inside of the mounting member 2, and a joint cylinder 20 erected from the upper end portion of the peripheral wall portion 12. ,
an operating member 40 having a discharge head 48, the lower half of which is fitted into the peripheral wall portion 12 in an upward biased state so as to be able to move up and down;
a ring cap 50 which is connected to the joint cylinder 20 and is provided so as to be screwable with the discharge head 48 in a state in which the operating member 40 is pushed down against an upward biasing force ; As the operating member 40 moves up and down, the liquid in the container body is sucked up into the cylinder 10 via the first check valve V1, and the liquid in the cylinder 10 is discharged via the second check valve V2 . It is configured to be discharged from the head 48 ,
The ring cap 50 comprises a connecting cylinder 54 fitted to the joint cylinder 20 and a threaded cylinder 60 that can be screwed to the discharge head 48, which are connected via an annular wall portion 52.
In the container-mounted liquid dispenser in which a detent projection 28 for engaging with the ring cap 50 side protrudes laterally from the outer surface of the joint cylinder 20,
The connecting cylinder 54 is arranged outside the joint cylinder 20,
The joint cylinder 20 has a locking cylinder part 26 that engages with the upper part of the connecting cylinder 54 and extends upward from a fitting cylinder part 22 that is fitted with the lower part of the connecting cylinder 54.
The anti-rotation projection 28 is formed on the outer surface of the locking tube portion 26, and the locking projection 56 that engages with the anti-rotation projection 28 is formed on the upper portion of the connecting tube 54, respectively.

In this means, a ring cap 50 is attached to a joint cylinder 20 erected from the upper end portion of the peripheral wall portion 12 of the cylinder 10 shown in FIG.
This ring cap has a connecting cylinder 54 fitted to the joint cylinder 20 shown in FIG. ing.
A detent protrusion 28 is provided on the outer surface of the joint cylinder 20 to engage with the ring cap 50 side.
Therefore, when inserting the lower half of the operating member 40 into the cylinder 10, it is possible to prevent the operating member 40 from being damaged by the anti-rotation projection 28. As shown in FIG.
In addition, in this means, as the structure of the joint cylinder 20, as shown in FIG. A portion 26 extends upward.
According to this structure, since the height of the joint cylinder 20 is increased, the holding space of the outer peripheral surface of the ring cap 50 is expanded, so that it is easy to hold.

The second means has the first means and forms a vertically oriented locking projection 56 that engages with the anti-rotation projection 28 on the inner surface of the connecting cylinder 54,
and forming the plurality of anti-rotation projections 28 over the entire outer circumference of the joint cylinder 20,
The locking projections 56 are provided so as to engage with the receiving grooves 30 formed between the adjacent anti-rotation projections 28 .

In this means, as shown in FIG. 3, a vertically oriented locking projection 56 is formed on the inner surface of a connecting tube 54 arranged outside the joint tube 20 .
Further, as shown in FIG. 2, the plurality of anti-rotation projections 28 are formed over the entire outer circumference of the joint cylinder 20, and a receiving groove 30 is formed between the adjacent anti-rotation projections 28. The locking projection 56 is provided inside so as to engage with it.
According to this structure, regardless of where the locking projection 56 is positioned in the joint cylinder 20 in the circumferential direction, it can be engaged with any one of the receiving grooves 30, and the connection between the joint cylinder and the cap ring can be achieved. Since no alignment is required, it is easy to attach the ring cap 50 to the joint cylinder 20 .

The third means has the first means or the second means , and forms the locking tube portion 26 with a smaller outer diameter than the fitting tube portion 22,
A first retaining projection 24 is provided on the outer surface of the fitting cylinder portion 22, and a second retaining projection 58 which engages with the first retaining projection 24 is provided on the lower inner surface of the connecting cylinder 54. death,
In addition, the protrusion length L of the anti-rotation protrusion 28 is designed so that the anti-rotation protrusion 28 does not exceed the contour of the fitting cylinder 22 as viewed from above.

In this means, as shown in FIG. 3, the locking cylinder portion 26 is formed to have a smaller outer diameter than the fitting cylinder portion 22, and the outer surface of the fitting cylinder portion 22 is provided with a first retainer. A second retaining protrusion 58 that engages with the first retaining protrusion 24 is provided around the protrusion 24 and on the lower inner surface of the connecting cylinder 54 .
Further, the protrusion length L of the anti-rotation protrusion 28 shown in FIG. 4 is designed so that the anti-rotation protrusion 28 does not exceed the contour of the fitting cylinder 22 as viewed from above.
According to this structure, the structure of the joint cylinder 20 can be a compact structure that is not bulky in the cylinder radial direction.
Further, when the ring cap 50 is attached to the joint tube 20, the second retaining projection 58 provided around the inner surface of the lower portion of the connecting tube 54 can be prevented from coming into contact with the anti-rotation projection 28. Mounting of the ring cap 50 to the cylinder 20 is facilitated.

According to the invention according to the first means, the cylinder 10 is suspended from the inside of the mounting member 2 attached to the mouth and neck of the container body, and the ring In addition to mounting the cap 50, the outer surface of the coupling cylinder 20 is provided with the anti-rotation protrusion 28 that engages the ring cap 50 side. , the actuating member 40 can be prevented from being damaged by the anti-rotation protrusion 28 .
Further, according to the invention according to the first means, the structure of the joint cylinder 20 is such that the fitting cylinder portion 22 to be fitted to the lower part of the connecting cylinder 54 is connected to the locking cylinder to be locked to the upper part of the connecting cylinder 54 . Since the portion 26 is extended upward, the height of the joint cylinder 20 is increased, and the gripping space on the outer peripheral surface of the ring cap 50 is also increased, making it easier to hold.
According to the invention according to the second means, a vertically oriented locking projection 56 that engages with the anti-rotation projection 28 is formed on the inner surface of the coupling cylinder 54 disposed outside the joint cylinder 20, In addition, the plurality of anti-rotation projections 28 are formed along the entire circumference of the outer surface of the joint cylinder 20, and the locking projections 56 are provided in receiving grooves 30 formed between adjacent anti-rotation projections 28. Since the ring cap 50 is engaged with the joint cylinder 20, it can be engaged with any one of the receiving grooves 30 regardless of where the locking projection 56 is positioned in the circumferential direction of the joint cylinder 20. Easy to wear.
According to the third aspect of the invention, the locking cylinder portion 26 is formed to have a smaller outer diameter than the fitting cylinder portion 22, and the projection length L of the anti-rotation projection 28 is Since the anti-rotation protrusion 28 is designed so as not to exceed the outline of the fitting tube 22 when viewed from above, the structure of the joint tube 20 can be a compact structure that is not bulky in the tube radial direction. Mounting of the ring cap 50 to the joint cylinder 20 is facilitated.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of the container-mounted liquid ejector according to the first embodiment of the present invention; FIG. 2 is a cross-sectional view of the container of FIG. 1 as seen from the II-II direction; FIG. 3 is a cross-sectional view of the essential parts of the container viewed from the III-III direction of FIG. 2; FIG. 4 is a diagram showing the structure of a cylinder side of the essential parts shown in FIG. 3; FIG. 2 is an explanatory view showing assembly work of the container of FIG. 1; FIG. 5 is a side view of a container-mounted liquid ejector according to a second embodiment of the present invention;

1 to 5 show a container mounting liquid dispenser according to a first embodiment of the present invention. This container mounting liquid dispenser is formed of a mounting member 2 , a cylinder member 8 , an operating member 40 and a ring cap 50 .

The mounting member 2 has a mounting cylinder 4 fitted (screwed in the illustrated example) to the mouth and neck of the container, and an inward flange 6 protrudes inward from the upper end of the mounting cylinder 4 .

The cylinder member 8 is composed of a cylinder 10 , a suction pipe 18 and a valve member 32 .
The cylinder 10 has a vertically long peripheral wall portion 12, and a collar portion 14 attached to the upper end of the peripheral wall portion is fixed to the lower surface side of the inward flange 6, and vertically installed in the container body.
A packing P is attached to the rear side of the flange portion 14 .
A ventilation hole b is opened in the upper portion of the peripheral wall portion 12 .
A joint cylinder 20 is erected from the upper end portion of the peripheral wall portion 12 . A first retainer protrusion 24 is formed at an appropriate place on the outer surface of the joint cylinder 20 . This joint cylinder 20 will be described later.
A first valve seat 15 is formed at the lower end of the peripheral wall portion 12 . In the illustrated example, an annular bottom wall having a flat upper surface is formed continuously from the lower end of the peripheral wall portion 12 , and the inner peripheral portion of this annular bottom wall serves as the first valve seat 15 .
A pipe fitting tube 16 hangs down from the annular bottom wall.
The upper end of the suction pipe 18 is fitted in the pipe fitting cylinder 16 . A suction pipe 18 hangs down to the bottom of the container body.
The valve member 32 is arranged inside the lower portion of the peripheral wall portion 12 .
The valve member 32 has a plurality of legs 34 (a pair in the illustrated example) placed on the annular bottom wall, and a plurality of elastic support pieces 35 protruding inward from the lower inner surfaces of the legs 34 . The first valve plate 36 is supported through the hole. The legs 34 are formed at positions facing each other.
The first valve plate 36 and the first valve seat 15 form a first check valve V1.
A pedestal portion 38 having a top is erected from the inner side of the leg portion 34 . The pedestal portion 38 is formed to support a bottom wall 42a of a piston guide 42, which will be described later, when the operating member 40 is lowered to the lower limit position.
The valve member 32 forms a liquid passageway at an appropriate location. In the illustrated example, it is provided so that the liquid flows from between the legs arranged at opposite positions.

The operating member 40 is composed of a piston guide 42 , a stem 44 , a cylindrical piston 46 , a closed cylinder 47 and a discharge head 48 in this embodiment. However, this structure can be changed as appropriate.

In the illustrated example, the piston guide 42 has an upright wall portion 42b protruding upward from the upper surface of the bottom wall 42a, and an outward flange shape extending from the peripheral edge of the bottom wall 42a to near the inner surface of the peripheral wall portion 12 of the cylinder 10. It extends through the wall 42c. An annular vertical cylindrical portion 42e is suspended from the peripheral end of the outward flange-shaped wall 42c. A liquid passage is provided between the vertical cylindrical portion 42e and the inner surface of the peripheral wall portion 12. As shown in FIG.
However, these structures can be changed as appropriate.
A spring S is interposed between the outward flange-shaped wall 42c and the upper end of the leg portion 34 to urge the operating member 40 upward.
In the illustrated example, as shown in FIG. 2, the standing wall portion 42b has a shape in which a cylindrical wall is divided into three parts and these parts are connected by a substantially Y-shaped reinforcing wall when viewed from above.
The inside of the standing wall 42b communicates with a second check valve V2, which will be described later.
These shapes can be changed as appropriate.
The upper surface of the outward flange-like wall 42c forms a second valve seat 42d. The second valve seat 42d and the lower end portion of an inner cylindrical portion 46a of a cylindrical piston 46, which will be described later, form a second check valve V2.

The stem 44 has an enlarged diameter tubular portion 44c extending vertically from the lower end of a vertically elongated main tubular portion 44a via an enlarged diameter portion 44b. In the illustrated example, an abutting rib 44d is attached to the inner surface of the main cylindrical portion 44a near the lower end.
Then, the upright wall portion 42b is fitted into the lower portion of the main cylindrical portion 44a until it abuts against the contact rib 44d.

The cylindrical piston 46 has an inner cylindrical portion 46a surrounding the standing wall portion 42b and an outer cylindrical portion 46b that is brought into sliding contact with the inner surface of the peripheral wall portion 12 of the cylinder 10. As shown in FIG. These two tubular portions are connected by an annular connecting portion 46c.
The upper outer surface of the inner cylindrical portion 46a is fitted to the inner surface of the enlarged diameter cylindrical portion 44c of the stem 44 in a slidable and liquid-tight manner.

The closing cylinder 47 is an outer stem surrounding the stem 44, and has a sliding portion 47b that slides on the peripheral wall portion 12 and protrudes from the lower end of a straight cylindrical base cylinder portion 47a.
The closed tube 47 is inserted into the inner surface of the cylinder 10 through a gap between the stem 44 and a ring cap 50 which will be described later.
The role of the closing tube 47 is to close the ventilation hole b with the sliding portion 47b in a state where the discharge head 48 can be screwed onto the ring cap 50 side.
That is, when the ejection head 48 is pushed down to the screwed position with the ring cap 50, the downward stepped portion a of the ejection head 48, which will be described later, abuts against the upper end portion of the base cylinder portion 47a to lower the closing cylinder 47. The vent b is closed.

The ejection head 48 has a mounting cylinder portion 48b and a threaded peripheral wall 48c surrounding the mounting cylinder portion, which hang down from the vicinity of the central portion of the back surface of the head top wall 48a.
A head peripheral wall 48d extends from the peripheral end of the head top wall 48a.
A nozzle 48e protrudes laterally from the upper portion of the mounting cylinder portion 48b through the threaded peripheral wall 48c and the head peripheral wall 48d.
The mounting tubular portion 48b is fitted into the upper end of the main tubular portion 44a of the stem 44. As shown in FIG. In the illustrated example, a downward stepped portion a is formed on the upper outer surface of the mounting tubular portion 48b, and the tip portion of the main tubular portion 44a is abutted against the downwardly directed stepped portion a.
A female screw is formed on the inner surface of the threaded peripheral wall 48c.

The ring cap 50 has a connecting tube 54 fitted to the joint tube 20 and a threaded tube 60 that can be screwed to the threaded peripheral wall 48c. These two tubular portions are connected by a horizontal annular wall portion 52 .
In the illustrated example, the threaded tube 60 is erected via an annular wall portion 52 projecting inwardly from the upper end of the connecting tube 54 .
Further, an insertion tube 62 for preventing the sliding portion 47b from coming off upward is provided from the lower end of the threaded tube 60 so as to extend inside the joint tube 20. As shown in FIG.
A second retaining projection 58 that engages with the lower surface of the first retaining projection 24 is formed on the inner surface of the connecting cylinder 54 by plugging the ring cap 50 onto the joint cylinder 20 .
The insertion tube 62 is inserted between the joint tube 20 and the closing tube 47 .
Further, in the illustrated example, the annular wall portion 52 is extended laterally, and a grip cylinder 64 is vertically installed from the outer peripheral end of the annular wall portion 52 .
A detent means is provided between the joint cylinder 20 and the ring cap 50 . This will be discussed later.

In the above configuration, when using the container mounting liquid ejector of the present invention, the ejection head 48 is pushed down from the state shown in FIG. Then, the first check valve V1 is closed and the second check valve V2 is opened. Then, the liquid in the cylinder 10 passes through the inside of the second check valve V2 and the stem 44 and is discharged from the nozzle 48e of the discharge head 48. As shown in FIG.
When the discharge head 48 is released from the depression, the operating member 40 rises due to the elastic restoring force of the spring S, and the pressure inside the cylinder 10 becomes negative. As a result, the second check valve V2 closes and the first check valve V1 opens, sucking up the liquid in the container into the cylinder 10. As shown in FIG.

An example of the procedure for assembling the container mounting liquid dispenser will be described. ,set.
After that, the ring cap 50 is attached to the joint cylinder 20 of the cylinder 10 .
As a result of this plugging step, the second retaining projection 58 indicated by the imaginary line in FIG. 4 climbs over the first retaining projection 24 and bites into the lower surface of the first retaining projection.
Thereby, the ring cap 50 is assembled to the cylinder 10 .
Next, by screwing the ejection head 48 onto the ring cap 50, the assembly of the liquid ejector is completed.
Alternatively, the ring cap 50 may be connected to the discharge head 48 in advance, and the ring cap 50 may be assembled to the joint cylinder 20 .

When the liquid ejector of the present invention is used for the first time, for example, the mounting member 2 is gripped and the head peripheral wall 48d of the ejection head 48 indicated by the imaginary line in FIG. 1 is rotated in the opening direction.
Then, since the flange 14 of the cylinder 10 is sandwiched between the inward flange 6 of the mounting member 2 and the neck portion of the container body, the cylinder 10 does not rotate with respect to the mounting member 2 .
Since both the joint cylinder 20 of the cylinder 10 and the ring cap 50 are prevented from rotating, the discharge head 48 can be screwed off from the ring cap 50 .

In the present invention, the anti-rotation projection 28 is provided on the outer surface of the joint cylinder 20 of the cylinder 10, and the anti-rotation projection 28 is attached to the corresponding portion of the ring cap 50 (in the illustrated example, the inner surface of the connecting cylinder 54). ) to prevent rotation between the cylinder 10 and the ring cap 50 .
With this structure, even if the cylindrical piston 46 or the closed cylinder 47 hits the inner surface of the joint cylinder 20 during the assembly work of the container-mounted liquid dispenser, the anti-rotation projection 28 does not exist on the inner surface. .
Therefore, unlike the prior art, the cylindrical piston 46 and the closing cylinder 47 are not damaged due to contact with the anti-rotation projection.
Also, when the ring cap 50 is plugged into the joint cylinder 20, the ring cap is tilted obliquely due to the contact of the insertion cylinder of the ring cap with the anti-rotation protrusion on the inner surface of the joint cylinder 20, as in the prior art. There is no problem that the cylindrical piston or the closing cylinder is damaged due to being plugged.

In the joint cylinder 20 of this embodiment, a fitting cylinder part 22 fitted to the lower part of the connecting cylinder 54 is erected from the upper end of the cylinder 10, and the connecting cylinder 54 is extended from the upper end of the fitting cylinder part 22. A locking cylinder portion 26 is provided to extend upwardly so as to prevent rotation with respect to the upper portion.
The first retaining projection 24 is provided on the outer surface of the fitting cylinder portion 22, and the second retaining projection 58 is provided on the inner surface of the lower portion of the connecting cylinder 54, respectively.
However, this structure can be changed as appropriate, and for example, one of the two ridges may be a protrusion provided in a part of the circumferential direction.
It should be noted that the projection length of the second retaining projection 58 from the connecting tube should be designed to allow forcible removal of the mold inside the ring cap when the ring cap is molded integrally with the mold.
The same applies to the first retaining projection 24 as well.
As shown in FIG. 3, the outer surface of the locking tube portion 26 is provided with a detent projection 28, and the upper inner surface of the coupling cylinder 54 is provided with a vertical detent projection that engages with the detent projection 28. 56 are formed respectively.
According to this structure, as the coupling tube 20, the locking tube portion 26 extends upward from the upper end of the fitting tube portion 22, so that the tube length of the coupling tube 20 is increased, and accordingly, the gripping tube 64 is extended. Since the length can be increased, the space for gripping is expanded and the usability is good.

In a more preferable illustrated example, as shown in FIG.
4, the projection length L of the anti-rotation projection 28 from the locking tube portion 26 is such that the anti-rotation projection 28 exceeds the outline of the fitting tube portion 22 seen from above. It is designed not to protrude outside (see Figure 2).
By doing so, when the ring cap 50 is plugged into the joint cylinder 20 from directly above, the second retaining projection 58 is prevented from coming into contact with the anti-rotation projection 28 .
Further, by forming the engaging cylinder portion 26 to have a smaller outer diameter than the fitting cylinder portion 22, the structure of the joint cylinder 20 can be a compact structure that is not bulky in the cylinder diameter direction.

The anti-rotation protrusion 28 of this embodiment is formed as a vertical rib. However, any structure may be used as long as it functions as a detent.
Further, in the illustrated example, a plurality of anti-rotation protrusions 28 are provided in a flat knurl shape at equal intervals over the entire circumference of the locking cylinder portion 26 . As shown in FIG. 2, a receiving groove 30 that engages with the locking projection 56 is formed between adjacent anti-rotation projections 28 .
On the other hand, the locking projections 56 are discretely (intermittently) arranged on the entire circumference of the connecting cylinder 54 and are provided so as to engage with the receiving grooves 30 at some places in the circumferential direction.
According to this structure, even if the position of the connecting tube 54 in the circumferential direction is not particularly aligned with the locking tube portion 26, each locking projection 56 engages with one of the receiving grooves 30, which is convenient. .
In particular, when the ring cap 50 is mechanically driven into the joint cylinder 20, it is not necessary to employ a positioning mechanism in the driving machine, which is advantageous.
The above structure can be modified as appropriate. For example, a plurality of locking projections are provided in a knurled shape at equal intervals over the entire circumference of the connecting cylinder 54, while the anti-rotation projections 28 are discretely arranged. I don't mind.

Other embodiments of the present invention will be described below. In these descriptions, descriptions of the same structures as those of the first embodiment are omitted.

FIG. 6 shows a container-mounted liquid dispenser according to a second embodiment of the present invention.
In this embodiment, the structure of the ring cap 50 is different.
A widening tubular portion 68 is suspended from the lower end of the threaded tubular portion 60 via an outward flange 66 . The expansion cylinder portion 68 is formed to have substantially the same diameter as the head peripheral wall 48d. However, the enlarged diameter cylindrical portion 68 may be omitted.
Further, the ring cap 50 extends the annular wall portion 52 inward, and suspends an insertion tube 62 between the joint tube 20 and the operating member 40 from the rear surface of the extended portion.
Further, in this embodiment, the operating member 40 omits the piston guide, the cylindrical piston, and the closing cylinder, and instead has a main cylindrical portion 44 a of the stem 44 at the lower end of the main cylindrical portion 44 a and the inner surface of the peripheral wall portion 12 of the cylinder 10 . A circumferential piston portion 44e is formed.
However, this structure can be changed as appropriate. For example, the closed cylinder may not be omitted, and only the cylindrical piston may be replaced with the piston portion 44e attached to the lower end portion of the main cylinder portion 44a.
An upward stepped portion c is formed at the lower portion of the main cylindrical portion 44a.
Furthermore, the operating member 40 can be appropriately modified in addition to the illustrated structure, and may have any structure as long as it has at least a portion corresponding to a piston portion (or a cylindrical piston) and can realize a pump function. .
The insertion cylinder 62 in the illustrated example is formed as a double cylinder consisting of a small diameter cylinder portion 62a and a large diameter cylinder portion 62b.
The large-diameter tubular portion 62b is in contact with the inner surface of the joint tubular portion 20, and the small-diameter tubular portion 62a is in contact with the outer surface of the main tubular portion 44a.
The lower end of the small-diameter cylindrical portion 62a is in contact with the upward stepped portion c.

2... Mounting member 4... Mounting tube 6... Inward flange
8... Cylinder member 10... Cylinder 12... Peripheral wall part 14... Collar part 15... First valve seat 16... Pipe fitting tube 18... Suction pipe 20... Joint tube 22... Fitting tube part 24... First retaining protrusion 26... Locking cylinder part 28... Anti-rotation protrusion 30... Receiving groove
32... Valve member 34... Leg portion 35... Elastic support piece 36... First valve plate 38... Base portion 40... Actuating member 42... Piston guide 42a... Bottom wall 42b... Upright wall part 42c... Outward flange-like wall 42d... Third 2 valve seat 42e vertical tubular portion 44 stem 44a main tubular portion 44b enlarged diameter portion 44c enlarged diameter tubular portion 44d contact rib 44e piston portion 46 tubular piston 46a inner tubular portion 46b outer cylinder Part 46c... Annular connecting part 47... Closed tube 47a... Base tube part 47b... Sliding part 48... Ejection head 48a... Head top wall 48b... Mounting tube part 48c... Threaded peripheral wall 48d... Head peripheral wall 48e... Nozzle 50... Ring cap 52... Annular wall portion 54... Connecting tube 56... Locking projection 58... Second retaining projection 60... Threaded tube 62... Insertion tube 62a... Small diameter tube part 62b... Large diameter tube part 64... Grasping tube 66... Outward facing Flange 68...Expansion cylindrical part a...Downward stepped part b...Ventilation hole c...Upward stepped part P...Packing S...Spring V1...First check valve V2...Second check valve

Claims (3)

A cylindrical mounting member (2) for mounting on the mouth and neck of the container body,
A first check valve (V1) is formed in the lower part of the peripheral wall (12) of the cylinder (10) that hangs down from the inside of the mounting member (2), and a joint cylinder is formed from the upper end of the peripheral wall (12). A cylinder member (8) formed by standing up (20);
an operating member (40) having a discharge head (48), the lower half of which is fitted in the peripheral wall (12) in an upward biased state so as to be able to move up and down;
a ring cap (50) connected to the joint cylinder (20) and provided so that the discharge head (48) can be screwed thereon in a state in which the operating member (40) is pushed down against an upward biasing force; By raising and lowering the operating member (40) with respect to the cylinder (10), the liquid in the container body is sucked up into the cylinder (10) through the first check valve (V1), and the cylinder The liquid in (10) is configured to be discharged from the discharge head (48) through the second check valve (V2),
The ring cap (50) includes a connecting tube (54) fitted to the joint tube (20) and a threaded tube (60) that can be screwed to the discharge head (48). ), and
In a container-installed liquid dispenser in which a detent projection (28) that engages with the ring cap (50) is projected outward from the outer surface of the joint cylinder (20),
The connecting tube (54) is arranged outside the joint tube (20),
The joint cylinder (20) extends upward from a fitting cylinder part (22) fitted with the lower part of the connecting cylinder (54) to a locking cylinder part (26) that engages with the upper part of the connecting cylinder (54). extended to
The anti-rotation protrusion (28) is provided on the outer surface of the locking tube (26), and the locking protrusion (56) is provided on the upper part of the connecting tube (54) to engage with the anti-rotation protrusion (28). A liquid dispenser for mounting a container , characterized in that each of the following is formed . A vertically oriented locking projection (56) that engages with the anti-rotation projection (28) is formed on the inner surface of the connecting cylinder (54),
and forming the plurality of anti-rotation protrusions (28) along the entire outer circumference of the joint cylinder (20),
2. A container according to claim 1, characterized in that said engaging projections (56) are provided so as to engage in receiving grooves (30) formed between adjacent anti-rotation projections (28). Wearable liquid dispenser. The locking tube portion (26) is formed to have a smaller outer diameter than the fitting tube portion (22),
A first retaining projection (24) is provided on the outer surface of the fitting cylinder portion (22), and a second retaining projection (24) is engaged with the first retaining projection (24) on the lower inner surface of the connecting cylinder (54). A stop ridge (58) is provided around each,
In addition, the protrusion length (L) of the anti-rotation protrusion (28) is designed so that the anti-rotation protrusion (28) does not exceed the contour of the fitting tube (22) viewed from above. 3. The liquid dispenser for mounting a container according to claim 1 or 2 , characterized in that:

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