JP2021070512A - Liquid discharger for container mounting - Google Patents

Abstract

To provide a liquid discharger for container mounting that reduces a risk of damaging to a part in assembling work.SOLUTION: A liquid discharger for container mounting comprises: a cylindrical mounting member 2 for mounting on a neck part of a container body; a cylinder member 8 which has a joint cylinder 20 raised from an upper end part of a peripheral wall part 12 of a cylinder 10 hung from inside the mounting member 2; an actuation member 40 which has a lower half part fit in the peripheral wall part 12 to be elevated in an upward energized state, and is provided with a discharge head 48 at an upper half part extended upward from the cylinder member 8; and a ring cap 50 which is coupled to the joint cylinder 20, presses down the actuation member 40 against upward energizing force, and is provided with the discharge head 48 in a threadedly engageable state. The ring cap 50 has a coupling cylinder 54 which is fitted to the joint cylinder 20, and a threaded engagement cylinder 60 which can be threadedly engaged with the discharge head 48, provided successively through an annular wall part 52. From an outer surface of the joint cylinder 20, a rotation stopping projection part 28 which is locked to the ring cap 50 is projected laterally outward.SELECTED DRAWING: Figure 1

Description

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

As a liquid discharger for mounting a container of this type, a tubular mounting member for mounting the container body on the mouth and neck, and a tubular mounting member.
A cylinder member in which a cylinder is hung from the inside of the mounting member and a joint cylinder is erected from the upper end of the peripheral wall portion of the cylinder.
An operating member main body in which the lower half portion is fitted and inserted into the peripheral wall portion so as to be able to move up and down in an upwardly urged state.
The discharge head attached to the upper part of the operating member body,
It is known that the joint cylinder is stoppered against the outer surface of the joint cylinder and is provided with a ring cap in which the discharge head is screwably provided in a state where the operating member is pushed down against an upward urging force. (Patent Document 1)
The ring cap has a hanging cylinder facing the inner surface of the joint cylinder, and is provided with a detent protrusion that meshes with the inner surface of the joint cylinder and the outer surface of the hanging cylinder.
By doing so, when the discharge head is screwed off from the ring cap, the inconvenience that the discharge head cannot be screwed off due to the rotation of the ring cap together with the discharge head is avoided.
Further, the ring cap has an insertion cylinder inserted between the operating member and the joint cylinder for retaining the lower half of the operating member.

JP 2015-163523

In Patent Document 1, since the anti-rotation protrusion is provided on the inner surface of the joint cylinder, it is attached to a part of the operating member main body (for example, a piston or a closing cylinder described later) to be inserted into the cylinder in the work of assembling the container. There was a risk that the anti-rotation protrusion would hit and damage the product.
Further, in the assembly work, after setting the operating member main body in the cylinder, a procedure of tapping the ring cap against the joint cylinder may be taken. At this time, the insertion cylinder is the anti-rotation protrusion. By contacting the portion, the ring cap was slanted and there was a possibility of damaging the main body of the operating member.

An object of the present invention is to provide a container-mounted liquid discharger that reduces the risk of damage to parts during assembly work.

The first means is a tubular mounting member 2 for mounting the container body on the mouth and neck, and
With the cylinder member 8 in which the first check valve V1 is formed in the lower portion of the peripheral wall portion 12 of the cylinder 10 hanging from the inside of the mounting member 2, and the joint cylinder 20 is erected from the upper end portion of the peripheral wall portion 12. ,
An operating member 40 having a discharge head 48 and a lower half portion fitted in the peripheral wall portion 12 so as to be able to move up and down in an upwardly urged state.
It is provided with a ring cap 50 which is connected to the joint cylinder 20 and which is provided with a screwable discharge head 48 in a state where the operating member 40 is pushed down against an upward urging force, and operates on the cylinder 10. By raising and lowering the member 40, the liquid in the container is sucked up into the cylinder 10 via the first check valve V1, and the liquid in the cylinder 10 is discharged from the discharge head 48 via the second check valve V2. In the container mounting liquid discharger configured as
The ring cap 50 is formed by connecting a connecting cylinder 54 fitted to the joint cylinder 20 and a screwing cylinder 60 screwable to the discharge head 48 via an annular wall portion 52.
From the outer surface of the joint cylinder 20, a detent projection 28 for locking to the ring cap 50 side was projected outward from the side.

In this means, the ring cap 50 is attached to the joint cylinder 20 which is erected from the upper end of the peripheral wall portion 12 of the cylinder 10 shown in FIG.
In this ring cap, a connecting cylinder 54 fitted to the joint cylinder 20 shown in FIG. 3 and a screwing cylinder 60 screwable to the discharge head 48 of the operating member 40 are continuously provided via the annular wall portion 52. ing.
Then, on the outer surface of the joint cylinder 20, a detent protrusion 28 for locking to the ring cap 50 side is provided.
Therefore, when the lower half of the operating member 40 is inserted into the cylinder 10, it is possible to prevent the operating member 40 from being damaged by the anti-rotation protrusion 28.

The second means has the first means, arranges the connecting cylinder 54 on the outside of the joint cylinder 20, and engages with the detent protrusion 28 on the inner surface of the connecting cylinder 54. A vertical locking projection 56 is formed,
In addition, the plurality of anti-rotation protrusions 28 are formed over the entire outer surface of the joint cylinder 20.
The locking projection 56 is provided so as to mesh with the receiving groove 30 formed between the adjacent detenting protrusions 28.

In this means, as shown in FIG. 3, a vertical locking projection 56 is formed on the inner surface of the connecting cylinder 54 arranged on the outside of the joint cylinder 20.
Further, as shown in FIG. 2, a plurality of anti-rotation protrusions 28 are formed over the entire outer surface of the joint cylinder 20, and a receiving groove 30 is formed between adjacent anti-rotation protrusions 28. The locking projection 56 is provided inside so as to engage with each other.
According to this structure, no matter where the locking projection 56 is located in the circumferential direction of the joint cylinder 20, it can be engaged with any of the receiving grooves 30 and between the joint cylinder and the cap ring. Since alignment is not required, the ring cap 50 can be easily attached to the joint cylinder 20.

The third means has a first means or a second means, and the connecting cylinder 54 is arranged outside the joint cylinder 20.
The joint cylinder 20 is formed by extending an locking cylinder portion 26 that locks with the upper portion of the connecting cylinder 54 upward from a fitting cylinder portion 22 that is fitted to the lower portion of the connecting cylinder 54.
The anti-rotation protrusion 28 is formed on the outer surface of the locking cylinder 26, and the locking projection 56 that meshes with the anti-rotation protrusion 28 is formed on the upper portion of the connecting cylinder 54.

In this means, as a structure of the joint cylinder 20, as shown in FIG. 3, a locking cylinder portion that locks from the fitting cylinder portion 22 that is fitted to the lower portion of the connecting cylinder 54 to the upper portion of the connecting cylinder 54. 26 is extended upward.
According to this structure, since the joint cylinder 20 is raised, the gripping space on the outer peripheral surface of the ring cap 50 is widened, so that it is easy to hold.

The fourth means has a third means, and the locking cylinder portion 26 is formed to have a smaller outer diameter than the fitting cylinder portion 22 and has a smaller outer diameter.
A first retaining ridge 24 is provided on the outer surface of the fitting cylinder portion 22, and a second retaining ridge 58 that meshes with the first retaining ridge 24 is provided on the lower inner surface of the connecting cylinder 54. And
Moreover, the protruding 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 first retaining cylinder portion 22 is formed on the outer surface of the fitting cylinder portion 22. A ridge 24 is provided, and a second retaining ridge 58 that meshes with the first retaining ridge 24 is provided around 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 made a compact structure that is not bulky in the cylinder diameter direction.
Further, when the ring cap 50 is attached to the joint cylinder 20, it is possible to prevent the second retaining protrusion 58 provided around the lower inner surface of the connecting cylinder 54 from hitting the anti-rotation protrusion 28, so that the joint can be prevented from hitting. The ring cap 50 can be easily attached to the cylinder 20.

According to the invention according to the first means, the cylinder 10 is hung from the inside of the mounting member 2 to the neck of the container body, and the ring is attached to the joint cylinder 20 which is erected from the upper end of the peripheral wall portion 12 of the cylinder 10. Since the cap 50 is attached and the anti-rotation protrusion 28 for locking to the ring cap 50 side is provided on the outer surface of the joint cylinder 20, when the lower half of the operating member 40 is inserted into the cylinder 10. , It is possible to prevent the actuating member 40 from being damaged by the anti-rotation protrusion 28.
According to the invention according to the second means, a vertical locking projection 56 that engages with the detent projection 28 is formed on the inner surface of the connecting cylinder 54 arranged on the outside of the joint cylinder 20. Further, the plurality of anti-rotation protrusions 28 are formed over the entire outer surface of the joint cylinder 20, and the locking projections 56 are formed in the receiving grooves 30 formed between the adjacent anti-rotation protrusions 28. Since it is provided so as to engage with each other, it is possible to engage with any of the receiving grooves 30 regardless of where the locking projection 56 is located in the circumferential direction of the joint cylinder 20, and the ring cap 50 to the joint cylinder 20 can be engaged. Easy to install.
According to the invention according to the third means, as the structure of the joint cylinder 20, the locking cylinder portion that locks from the fitting cylinder portion 22 that is fitted to the lower portion of the connecting cylinder 54 to the upper portion of the connecting cylinder 54. Since the 26 is extended upward, the height of the joint cylinder 20 increases the gripping space on the outer peripheral surface of the ring cap 50, which makes it easy to hold.
According to the invention according to the fourth means, the locking cylinder portion 26 is formed to have a smaller outer diameter than the fitting cylinder portion 22, and the protrusion length L of the anti-rotation protrusion 28 is formed. Since the anti-rotation protrusion 28 is designed so as not to exceed the contour of the fitting cylinder portion 22 seen from above, the structure of the joint cylinder 20 can be made a compact structure that is not bulky in the cylinder diameter direction. The ring cap 50 can be easily attached to the joint cylinder 20.

It is a side view of the liquid discharger for mounting a container which concerns on 1st Embodiment of this invention. FIG. 5 is a cross-sectional view of the container of FIG. 1 as viewed from the II-II direction. It is sectional drawing of the main part of the container seen from the direction III-III of FIG. It is a figure which shows the structure of the cylinder side among the main parts shown in FIG. It is explanatory drawing which shows the assembly work of the container of FIG. It is a side view of the liquid discharger for mounting a container which concerns on 2nd Embodiment of this invention.

1 to 5 show a container-mounted liquid discharger according to the first embodiment of the present invention. The container mounting liquid discharger 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 body, and the inward flange 6 projects inward from the upper end of the mounting cylinder 4.

The cylinder member 8 is formed 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 flange 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.
A packing P is attached to the back side of the flange portion 14.
A ventilation hole b is opened in the upper part of the peripheral wall portion 12.
The joint cylinder 20 stands up from the upper end of the peripheral wall portion 12. A first retaining ridge 24 is formed at an appropriate position on the outer surface of the joint cylinder 20. The 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 by being continuously provided at the lower end of the peripheral wall portion 12, and the inner peripheral portion of the annular bottom wall is used as the first valve seat 15.
Further, a pipe fitting cylinder 16 hangs down from the annular bottom wall.
The upper end of the suction pipe 18 is fitted in the pipe fitting cylinder 16. The suction pipe 18 hangs down to the bottom of the container body.
The valve member 32 is arranged in the lower portion of the peripheral wall portion 12.
The valve member 32 has a plurality of (a pair in the illustrated example) leg portions 34 mounted on the annular bottom wall, and a plurality of elastic support pieces 35 protruding inward from the lower inner surface of the leg portions 34. The first valve plate 36 is supported therethrough. The legs 34 are formed at positions facing each other.
The first check valve V1 is formed by the first valve plate 36 and the first valve seat 15.
Further, a pedestal portion 38 with a ridge stands up from the inside of the leg portion 34. The pedestal portion 38 is formed so as to support the bottom wall 42a of the piston guide 42, which will be described later, when the operating member 40 is lowered to the lower limit position.
A liquid passage is formed at an appropriate position of the valve member 32. In the illustrated example, the liquid is provided so as to flow between the legs arranged at opposite positions.

In the present embodiment, the operating member 40 includes a piston guide 42, a stem 44, a tubular piston 46, a closing cylinder 47, and a discharge head 48. However, this structure can be changed as appropriate.

In the illustrated example, the piston guide 42 projects an upright wall portion 42b upward from the upper surface of the bottom wall 42a, and has an outward flange shape from the peripheral edge of the bottom wall 42a to near the inner surface of the peripheral wall portion 12 of the cylinder 10. The wall 42c is extended. An annular vertical tubular portion 42e hangs down from the peripheral end of the outward flange-shaped wall 42c. A liquid passage is provided between the vertical cylinder portion 42e and the inner surface of the peripheral wall portion 12.
However, these structures can be changed as appropriate.
A spring S for urging the operating member 40 upward is interposed between the outward flange-shaped wall 42c and the upper end of the leg portion 34.
In the illustrated example, the upright wall portion 42b has a shape in which a cylindrical wall is divided into three parts and each part is connected by a substantially Y-shaped reinforcing wall when viewed from above.
The inside of the upright wall 42b communicates with the second check valve V2, which will be described later.
These shapes can be changed as appropriate.
The upper surface of the outward flange-shaped wall 42c is formed on the second valve seat 42d. The second check valve V2 is formed by the second valve seat 42d and the lower end of the inner cylinder portion 46a of the tubular piston 46 described later.

The stem 44 is formed by vertically extending the diameter-expanded cylinder portion 44c from the lower end of the vertically long main cylinder portion 44a via the diameter-expanded portion 44b. In the illustrated example, the contact rib 44d is attached near the lower end of the inner surface of the main cylinder portion 44a.
Then, the upright wall portion 42b is fitted and inserted into the lower portion of the main cylinder portion 44a until it hits the contact rib 44d.

The tubular piston 46 has an inner cylinder portion 46a that surrounds the upright wall portion 42b, and an outer cylinder portion 46b that is slidably contacted with the inner surface of the peripheral wall portion 12 of the cylinder 10. Both tubular portions are connected by an annular connecting portion 46c.
The upper outer surface of the inner cylinder portion 46a is slidably and liquid-tightly fitted to the inner surface of the diameter-expanded cylinder portion 44c of the stem 44.

The closing cylinder 47 is an outer stem that surrounds the stem 44, and is formed by projecting a sliding portion 47b that is in sliding contact with the peripheral wall portion 12 from the lower end of the straight tubular base cylinder portion 47a.
The closing cylinder 47 is inserted from the gap between the stem 44 and the ring cap 50 described later to the inner surface of the cylinder 10.
The role of the closing cylinder 47 is to close the ventilation hole b by the sliding portion 47b in a state where the discharge head 48 can be screwed to the ring cap 50 side.
That is, when the discharge head 48 is pushed down to the screwing position with the ring cap 50, the downward step portion a of the discharge 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, thereby lowering the closing cylinder 47. The ventilation hole b is closed.

The discharge head 48 has a mounting cylinder portion 48b and a screwed peripheral wall 48c surrounding the mounting cylinder portion hanging from the vicinity of the center of the back surface of the head top wall 48a.
Further, the head peripheral wall 48d hangs down from the peripheral end portion of the head top wall 48a.
Then, the nozzle 48e is projected outward from the upper side of the mounting cylinder portion 48b through the screwed peripheral wall 48c and the head peripheral wall 48d.
The mounting cylinder portion 48b is fitted in the upper end of the main cylinder portion 44a of the stem 44. In the illustrated example, a downward step portion a is formed on the upper part of the outer surface of the mounting cylinder portion 48b, and the tip end portion of the main cylinder portion 44a is abutted against the downward step portion a.
A female screw is formed on the inner surface of the threaded peripheral wall 48c.

The ring cap 50 has a connecting cylinder 54 fitted to the joint cylinder 20 and a screwing cylinder 60 screwable to the threaded peripheral wall 48c. Both cylinders are connected by a horizontal annular wall 52.
In the illustrated example, the screwing cylinder 60 stands up via an annular wall portion 52 protruding inward from the upper end of the connecting cylinder 54.
Further, from the lower end of the screwing cylinder 60, a plug-in cylinder 62 for preventing the sliding portion 47b from coming out upward is vertically installed inside the joint cylinder 20.
A second retaining ridge 58 that meshes with the lower surface of the first retaining ridge 24 is formed on the inner surface of the connecting cylinder 54 by tapping the ring cap 50 against the joint cylinder 20.
The insertion cylinder 62 is inserted between the joint cylinder 20 and the closing cylinder 47.
Further, in the illustrated example, the annular wall portion 52 extends outward to the side, and the gripping cylinder 64 is vertically hung 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 described later.

In the above configuration, when the container-mounted liquid discharger of the present invention is used, the discharge head 48 is pushed down from the state shown in FIG. Then, the first check valve V1 closes and the second check valve V2 opens. 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.
When the push-down of the discharge head 48 is released, the elastic restoring force of the spring S causes the operating member 40 to rise, and the inside of the cylinder 10 becomes negative pressure. As a result, the second check valve V2 closes and the first check valve V1 opens, sucking the liquid in the container into the cylinder 10.

To explain an example of the procedure for assembling the liquid discharger for mounting the container, the valve member 32, the mounting member 2, the spring S, the piston guide 42, the tubular piston 46, the stem 44, and the closing cylinder 47 are assembled in the cylinder 10. ,set.
After that, the ring cap 50 is plugged into the joint cylinder 20 of the cylinder 10.
By this plugging step, the second retaining ridge 58 shown by the imaginary line in FIG. 4 gets over the first retaining ridge 24 and bites into the lower surface of the first retaining ridge 24.
As a result, the ring cap 50 is assembled to the cylinder 10.
Next, the assembly of the liquid discharger is completed by screwing the discharge head 48 to the ring cap 50.
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 discharger of the present invention is used for the first time, for example, the mounting member 2 may be gripped and the head peripheral wall 48d of the discharge head 48 shown by the imaginary line in FIG. 1 may be rotated in the opening direction.
Then, since the flange portion 14 of the cylinder 10 is sandwiched between the inward flange 6 of the mounting member 2 and the mouth and 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 and the ring cap 50 of the cylinder 10 are stopped from rotating, the discharge head 48 can be screwed off from the ring cap 50.

In the present invention, a detent protrusion 28 is provided on the outer surface of the joint cylinder 20 of the cylinder 10, and the detent protrusion 28 is used as a corresponding portion of the ring cap 50 (in the illustrated example, the inner surface of the connecting cylinder 54). ), The cylinder 10 and the ring cap 50 are prevented from rotating.
In this structure, even if the tubular piston 46 or the closing cylinder 47 hits the inner surface of the joint cylinder 20 in the assembly work of the container mounting liquid discharger, the detent protrusion 28 does not exist on the inner surface. ..
Therefore, unlike the conventional technique, the tubular piston 46 and the closing cylinder 47 are not damaged by the contact with the detent protrusion.
Further, when the ring cap 50 is plugged into the joint cylinder 20, the ring cap is slanted due to the contact of the ring cap insertion cylinder with the detent protrusion on the inner surface of the joint cylinder 20, as in the prior art. It does not cause a problem of being plugged and damaging the tubular piston or the closing cylinder.

In the joint cylinder 20 of the present embodiment, the fitting cylinder portion 22 fitted to the lower portion of the connecting cylinder 54 is erected from the upper end of the cylinder 10, and the connecting cylinder 54 is formed from the upper end of the fitting cylinder portion 22. The locking cylinder portion 26, which is prevented from rotating with respect to the upper portion, extends upward.
The first retaining ridge 24 is provided on the outer surface of the fitting cylinder portion 22, and the second retaining ridge 58 is provided on the inner surface of the lower portion of the connecting cylinder 54.
However, this structure can be changed as appropriate, and for example, one of the two ridges may be a convex portion provided in a part in the circumferential direction.
The protruding length of the second retaining ridge 58 from the connecting cylinder may be designed so that the mold inside the ring cap can be forcibly removed when the ring cap is integrally molded with the mold.
The same applies to the first retaining ridge 24.
As shown in FIG. 3, the outer surface of the locking cylinder portion 26 has a detent protrusion 28, and the upper inner surface of the connecting cylinder 54 has a vertical locking projection that meshes with the detent protrusion 28. 56 are formed respectively.
According to this structure, as the joint cylinder 20, the locking cylinder portion 26 is extended upward from the upper end of the fitting cylinder portion 22, so that the cylinder length of the joint cylinder 20 becomes longer, and the grip cylinder 64 accordingly. Since the length can be increased, the space for gripping is expanded and it is easy to use.

In a more preferred illustrated example, as shown in FIG. 3, the locking cylinder portion 26 is formed to have a smaller outer diameter than the fitting cylinder portion 22.
The protrusion length L of the detent protrusion 28 from the locking cylinder portion 26 shown in FIG. 4 is such that the detent protrusion 28 exceeds the contour of the fitting cylinder portion 22 seen from above. It is designed so that it does not come out (see Fig. 2).
By doing so, when the ring cap 50 is plugged into the joint cylinder 20 from directly above, the second retaining ridge 58 is prevented from hitting the detent projection 28.
Further, by forming the locking cylinder portion 26 to have a smaller outer diameter than the fitting cylinder portion 22, the structure of the joint cylinder 20 can be made a compact structure that is not bulky in the cylinder diameter direction.

The anti-rotation protrusion 28 of the present embodiment is formed in 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 flatfish knurled shape at equal intervals over the entire circumference of the locking cylinder portion 26. Then, as shown in FIG. 2, a receiving groove 30 that meshes with the locking projection 56 is formed between adjacent anti-rotation protrusions 28.
On the other hand, the locking projections 56 are arranged discretely (intermittently) on the entire circumference of the connecting cylinder 54, and are provided so as to engage with the receiving groove 30 at some places in the circumferential direction.
According to this structure, even if the position of the connecting cylinder 54 in the circumferential direction is not particularly aligned with the locking cylinder portion 26, each locking projection 56 meshes 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 advantageous because it is not necessary to adopt the alignment mechanism in the driving machine.
The structure can be changed 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 protrusions 28 are arranged discretely. It doesn't matter.

Hereinafter, other embodiments of the present invention will be described. In these explanations, the description of the same structure as that of the first embodiment will be omitted.

FIG. 6 shows a container-mounted liquid discharger according to a second embodiment of the present invention.
In the present embodiment, first, the structure of the ring cap 50 is different, and a screwing cylinder 60 having a diameter larger than that of the connecting cylinder 54 is hung downward and outward from the upper end of the connecting cylinder 54 via the annular wall portion 52.
Further, the expansion cylinder portion 68 hangs down from the lower end of the screwing cylinder 60 via the outward flange 66. The expansion cylinder portion 68 is formed to have substantially the same diameter as the head peripheral wall 48d. However, the diameter-expanded cylinder portion 68 may be omitted.
Further, the ring cap 50 extends the annular wall portion 52 inward, and the insertion cylinder 62 hangs down between the joint cylinder 20 and the operating member 40 from the back surface of the extension portion.
Further, in the present embodiment, the operating member 40 omits the piston guide, the tubular piston, and the closing cylinder, and instead, instead of the piston guide, the lower end of the main cylinder portion 44a of the stem 44, and the inner surface of the peripheral wall portion 12 of the cylinder 10. A piston portion 44e to be provided around the circumference is formed.
However, this structure can be changed as appropriate. For example, the closing cylinder may not be omitted, and only the tubular piston may be replaced with the piston portion 44e attached to the lower end portion of the main cylinder portion 44a.
An upward step portion c is formed in the lower portion of the main cylinder portion 44a.
Further, the operating member 40 may be appropriately modified in addition to the structure shown in the drawing, and may have any structure as long as it has at least a portion corresponding to a piston portion (or a tubular piston) and can realize a pump function. ..
Further, the insertion cylinder 62 of the illustrated example is formed in a double cylinder composed of a small diameter cylinder portion 62a and a large diameter cylinder portion 62b.
The large-diameter cylinder portion 62b is in contact with the inner surface of the joint cylinder 20, and the small-diameter cylinder portion 62a is in contact with the outer surface of the main cylinder portion 44a.
The lower end of the small diameter tubular portion 62a is in contact with the upward step portion c.

2 ... Mounting member 4 ... Mounting cylinder 6 ... Inward flange
8 ... Cylinder member 10 ... Cylinder 12 ... Peripheral wall part 14 ... Flange part 15 ... First valve seat 16 ... Pipe fitting cylinder 18 ... Suction pipe 20 ... Joint cylinder 22 ... Fitting cylinder part 24 ... First retaining protrusion 26 ... Locking cylinder 28 ... Anti-rotation protrusion 30 ... Receiving groove
32 ... Valve member 34 ... Leg 35 ... Elastic support piece 36 ... First valve plate 38 ... Pedestal 40 ... Actuating member 42 ... Piston guide 42a ... Bottom wall 42b ... Standing wall 42c ... Outward flanged wall 42d ... No. 2 Valve seat 42e ... Vertical cylinder part 44 ... Stem 44a ... Main cylinder part 44b ... Diameter expansion part 44c ... Diameter expansion cylinder part 44d ... Contact rib 44e ... Piston part 46 ... Cylindrical piston 46a ... Inner cylinder part 46b ... Outer cylinder Part 46c ... Circular connecting part 47 ... Closing cylinder 47a ... Base cylinder part 47b ... Sliding part 48 ... Discharge head 48a ... Head top wall 48b ... Mounting cylinder 48c ... Screwed peripheral wall 48d ... Head peripheral wall 48e ... Nozzle 50 ... Ring cap 52 ... Circular wall part 54 ... Connecting cylinder 56 ... Locking protrusion 58 ... Second check valve 60 ... Screwing cylinder 62 ... Inserting cylinder 62a ... Small diameter cylinder part 62b ... Large diameter cylinder part 64 ... Gripping cylinder 66 ... Outward Flange 68 ... Expanded cylinder part a ... Downward step part b ... Vent hole c ... Upward step part P ... Packing S ... Spring V1 ... 1st check valve V2 ... 2nd check valve

Claims (4)

A tubular mounting member (2) for mounting the container body on the mouth and neck, and
A first check valve (V1) is formed in the lower part of the peripheral wall portion (12) of the cylinder (10) that hangs down from the inside of the mounting member (2), and the joint cylinder is formed from the upper end portion of the peripheral wall portion (12). Cylinder member (8) with (20) upright and
An operating member (40) having a discharge head (48) and a lower half portion fitted in the peripheral wall portion (12) so as to be able to move up and down in an upwardly biased state.
A ring cap (50) to which the discharge head (48) is screwable is attached in a state of being connected to the joint cylinder (20) and pushing down the operating member (40) against an upward urging force. The liquid in the container is sucked into the cylinder (10) via the first check valve (V1) by raising and lowering the operating member (40) with respect to the cylinder (10), and the liquid in the cylinder (10) is sucked up. In the container mounting liquid discharger configured so that the liquid is discharged from the discharge head (48) via the second check valve (V2).
The ring cap (50) has an annular wall portion (52) having a connecting cylinder (54) fitted to the joint cylinder (20) and a screwing cylinder (60) screwable to the discharge head (48). ) To be connected
A liquid discharger for mounting a container, characterized in that a detent protrusion (28) for locking to the ring cap (50) side is projected outward from the outer surface of the joint cylinder (20). The connecting cylinder (54) is arranged outside the joint cylinder (20), and a vertically oriented locking projection (28) that engages with the detent protrusion (28) is provided on the inner surface of the connecting cylinder (54). 56),
In addition, the plurality of anti-rotation protrusions (28) are formed over the entire outer surface of the joint cylinder (20).
The container according to claim 1, wherein the locking projections (56) are provided so as to mesh with each other in a receiving groove (30) formed between adjacent anti-rotation protrusions (28). Liquid discharger for mounting. The connecting cylinder (54) is arranged outside the joint cylinder (20).
The joint cylinder (20) is above the locking cylinder portion (26) that locks with the upper portion of the connecting cylinder (54) from the fitting cylinder portion (22) that is fitted to the lower portion of the connecting cylinder (54). It has been extended to
A locking projection (56) that meshes with the detent protrusion (28) on the outer surface of the locking cylinder portion (26) and the detent protrusion (28) on the upper portion of the connecting cylinder (54). Is characterized by the formation of each
The liquid discharger for mounting a container according to claim 1 or 2. The locking cylinder portion (26) is formed to have a smaller outer diameter than the fitting cylinder portion (22), and the locking cylinder portion (26) is formed to have a smaller outer diameter.
The first retaining ridge (24) is engaged with the outer surface of the fitting cylinder portion (22), and the second retaining ridge (24) is engaged with the first retaining ridge (24) on the lower inner surface of the connecting cylinder (54). Stop ridges (58) are installed around each,
Moreover, the protrusion length (L) of the detent protrusion (28) is designed so that the detent protrusion (28) does not exceed the contour of the fitting cylinder portion (22) viewed from above. The liquid discharger for mounting a container according to claim 3, wherein the liquid discharger is characterized in that.

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