JP6841677B2 - A liquid container suitable for replacement with a dispenser and a discharge device containing the liquid container - Google Patents

Description

The present invention relates to a liquid container suitable for a replacement container (refill container) and a discharge device including the liquid container.

As a discharge device of this type, a dispenser containing a cylinder and an operating member and incorporating a first check valve and a second check valve is detachably attached to the mouth and neck of the container body, and the operating member moves up and down with respect to the cylinder. By motion, the liquid in the cylinder is discharged from the nozzle at the upper part of the operating member via the second check valve, and the liquid in the container is sucked into the cylinder via the first check valve. Is known (Patent Document 1).
When the liquid in the container is used up, the dispenser may be removed from the container and a separately purchased refill container having the same structure as the container may be attached to the dispenser.
When it is not appropriate to expose the contents to the outside air, the container body can be used as a derami container body as shown in Patent Document 1. As is well known, this delamination container body has a flexible inner layer laminated on the inner surface of the outer layer so as to be able to reduce the volume, and an outside air introduction hole is provided in a part of the outer layer, and the container is made by negative pressure inside. The inner layer is configured to peel off from the outer layer except for the upper part of the mouth and neck of the body.

JP 2012-206760

In Patent Document 1, an auxiliary lid for ensuring airtightness during distribution is attached to the container body of the refill container, and when the replacement work is performed, the cap of the refill container is removed and the contents are used up. The container body will be removed from the dispenser and replaced with a new container body. However, the inside of the container body is exposed to the outside air until the cap is removed from the container body of the refill container and attached to the dispenser.
Depending on the nature of the contents, exposure to the outside air should be avoided as much as possible.
Even if there is no such situation, it is assumed that consumers may be concerned that dust may enter the container body between the time the cap is removed and the time it is attached to the dispenser. There is also a risk of accidentally tilting the container and spilling the contents when it is removed.

An object of the present invention is to propose a liquid container suitable for replacement with a dispenser and a discharge device including the liquid container, which does not require removing the cap of the container body for refilling when the container body is replaced. ..

The first means is a liquid container suitable for replacement with a dispenser.
The container body 2 that stands up the mouth and neck 6 and
An inner cap 10 including a plug tube 14 that is liquid-tightly plugged into the mouth neck 6 and
Has been provided with a,
The container body 2 is composed of an outer container portion L1 and a flexible inner container portion L2 formed in the outer container portion, and has an outside air introduction hole 8A for introducing outside air between the outer container portion and the inner container portion. 8B is a double container body provided in a part of the outer container portion L1.
A suction port A is opened in the bottom portion 16 that closes the lower surface of the plug cylinder 14, and a first check valve V1 that closes the suction port A in a closed state in a liquid-tight and airtight manner is formed.

The present means relates to the portion of the liquid container in the discharge device shown in FIG. 3 or FIG. 5, or the configuration of the refill container shown in FIG. This liquid container is provided with an inner cap 10 including a plug cylinder 14 which is plugged into the mouth neck 6 of the container body 2, and a suction port with a first check valve V1 at the bottom 16 which closes the lower surface of the plug cylinder 14. Forming A. With such a configuration, the sealing property of the liquid container at the time of distribution can be ensured, and the replacement work can be performed with the inner cap 10 attached to the mouth and neck 6 of the container body 2, which is convenient. ..
The container body 2 is a double container body composed of an outer container portion L1 and an inner container portion L2, and an outside air introduction hole for introducing outside air is formed in the outer container portion L1 between the two container portions. Therefore, even when the discharge device described later is being operated, the contents in the inner container portion L2 are not exposed to the outside air, and the airtightness during the discharge operation is ensured.

The "bottom" may be formed integrally with the plug cylinder 14 as shown in FIG. 5, but may be formed of a plurality of separate parts. For example, in the example of FIG. 1, the bottom portion 16 is formed by the first ring-shaped bottom plate 17 and the bottom member 10b of the tubular member 10a described later.
The reason why the valve provided at the suction port A is called a "first check valve" is that the valve serves as the first check valve of the pump mechanism when the liquid container of the present means is attached to the dispenser described later. Because it fulfills.
"Closed and airtightly closed" means that it not only regulates the backflow of liquid as the first check valve of the pump, but also regulates the outside air from entering the container during refilling work. Is.
The term "suitable for replacement" is used to ensure that the liquid container, which is provided in a pre-combined form with the dispenser as part of the discharge device described below, is not excluded from the scope of rights. ..
The "double container body" is a normal double container body in which a gap is formed in advance between the outer container portion and the inner container portion, and as shown in the illustrated example, the content is on the inner surface of the outer layer which is the outer container portion. It includes a so-called derami container in which an inner layer, which is a container, is laminated so that the inside thereof can be reduced in volume.

The second means has a first means, and a part of the bottom portion 16 is raised as a climax valve seat cylinder 20, and a suction is opened in a part of the cylinder wall of the valve seat cylinder 20. Form mouth A,
Further, a first valve body 22 having an elastic cylinder portion 22a fitted so as to surround the outer circumference of the valve seat cylinder 20 is provided.
The first check valve V1 was formed by allowing the suction port A to be opened and closed by the elastic cylinder portion 22a.

In this means, as shown in FIG. 3, the first valve body 22 has an elastic cylinder portion 22a fitted to the valve seat cylinder 20 so as to surround the outer circumference of the valve seat cylinder 20, and the suction port A is provided. It is proposed that the first check valve V1 is formed by allowing the elastic cylinder portion 22a to open and close. By appropriately selecting the thickness and material of the first valve body 22, the elastic force surrounding the valve seat cylinder 20 can be adjusted, and it is easy to realize the required sealing performance.

The third means has a first means or a second means, and the valve plate 22g is provided via a plurality of elastic support pieces 22f protruding from the support ring 22e placed on the outer peripheral portion of the bottom portion 16. The first valve body 22 that was supported was provided, and
The first check valve V1 is formed by allowing the suction port A opened at the center of the bottom portion 16 to be opened and closed by the valve plate 22g.

In this means, as shown in FIG. 5, a first valve body 22 in which a valve plate 22 g is supported via a plurality of elastic support pieces 22f protruding from a support ring 22e is used. Since the first valve body 22 having such a structure has a well-known structure, it is easy to procure it as a part.

The fourth means has a first means or a second means, and a cap cover 24 is attached to the outside of the mouth neck 6 and the inner cap 10.
The first valve body 22 is pushed down by the pushing down means 26 hanging from the cap cover 24, and is brought into pressure contact with the periphery of the suction port A.

In this means, when the first valve body 22 in which the valve plate 22g is supported via the elastic support piece 22f protruding from the support ring 22e is used, it is pushed down by the pushing down means 26 hanging from the cap cover. It is proposed (see Fig. 7). As a result, the valve plate 22 g has a high degree of closeness to the bottom 16.

The fifth means is a discharge device including a liquid container.
The liquid container 1 described in any of the first to third means,
It is composed of a dispenser 30 attached to the mouth and neck 6.
Dispenser 30
An outer cap 32 mounted on the outer surface of the mouth neck 6 and having an insertion port D on the upper surface,
A cylinder 36 that is vertically installed in the plug cylinder 14 via the outer cap 32 and opens a communication port B,
The lower half is inserted into the cylinder 36 from the insertion port D in an upwardly urged state, the discharge head 50 is projected above the cylinder 36, and the operating member 38 incorporating the second check valve V2 is inserted. Equipped with
As the operating member 38 moves up and down with respect to the cylinder 36, the liquid in the container body 2 enters the cylinder 36 via the first check valve V1 and the communication port B, and the liquid in the cylinder 36 enters the cylinder 36, and the liquid in the cylinder 36 enters the second check valve. It is configured to be discharged from the discharge head 50 through V2.

The present means proposes to apply the liquid container of the first to third means to the dispenser (see FIGS. 3 and 5). In this dispenser, the first check valve is omitted. In other words, instead of incorporating the first check valve and the second check valve in the dispenser as in the existing discharge device, the first check valve is moved from the dispenser to the liquid container (refill container). .. Since the first check valve of the pump mechanism is used as a sealing means for the refill container, it is possible to avoid complication of the structure.

According to the invention according to the first means and the fifth means, the liquid container 1 is provided with an inner cap 10 having a liquid-tightly plugged plug tube 14 at the mouth and neck portion 6 of the container body 2, and the plug tube 1 is provided. Since the first check valve V1 that closes the suction port A that opens to the bottom 16 that closes the lower surface of 14 is closed and liquid-tightly and airtightly formed, the dispenser 30 can be attached with the inner cap 10 attached. It is convenient because it can be refilled, and the liquid in the container is exposed to the outside air through the mouth and neck during the refilling work, or the container is accidentally knocked down and spilled. It can be avoided.
Further, the container body 2 is a double container body configured to introduce outside air between the outer container portion L1 and the inner container portion L2, and the liquid in the inner container portion is not exposed to the outside air, so that the liquid is discharged. Airtightness during operation is also maintained.
According to the invention according to the second means, since the suction port A is closed by the elastic tubular first valve body 22 fitted to the outer surface of the valve seat cylinder 20, the elastic force of the first valve body 22 The sealing performance can be adjusted as appropriate by setting.
According to the invention according to the third means, the first check valve V1 is closed by using the first valve body 22 in which the valve plate 22g is supported via the plurality of elastic support pieces 22f protruding from the support ring 22e. Since the configuration of the first valve body 22 itself is known and it is not necessary to prepare an original mold for manufacturing the valve body, the first valve body 22 can be procured at low cost. ..
According to the invention according to the fourth means, the first valve body 22 is pushed down by the pushing down means 26 hanging from the cap cover 24 and is provided so as to be in pressure contact with the periphery of the suction port A, so that when the cap cover 24 is attached. The sealing property of the suction port A can be improved.

It is sectional drawing of the liquid container which is 1st Embodiment of this invention. It is sectional drawing of the modification of the liquid container of FIG. It is a vertical sectional view of the discharge device which is 2nd Embodiment of this invention. It is a vertical sectional view of the dispenser of the discharge device of FIG. It is a vertical sectional view of the discharge device which concerns on 3rd Embodiment of this invention. It is a partial cross section seen in the VI-VI direction of the discharge device of FIG. It is a figure of the container body used for the discharge device of FIG.

1 to 2 show a liquid container 1 according to a first embodiment of the present invention. The liquid container 1 includes a container body 2, an inner cap 10, a first valve body 22, and a cap cover 24, and is provided as a refill container in this embodiment. The mode as a part of the discharge device will be described later.

The container body 2 is formed by erecting the mouth and neck 6 from the body 4. The upper end portion of the mouth neck portion 6 is formed in the small outer diameter portion 6a.
The container body 2 in the present embodiment is a double container body including an outer container portion L1 having a shape-retaining property and an inner container portion L2 capable of reducing the volume. In the illustrated example, the derami container body is formed by laminating a flexible inner layer L2 on the inner surface of the outer layer L1 which is an outer container portion via a release layer. A first outside air introduction hole 8A for introducing air is provided in a part of the outer layer L1 between the outer layer and the inner layer. In the illustrated example, a bottom crack type first outside air introduction hole 8A is formed in the bottom portion of the outer layer L1.
Instead of the above-mentioned derami container body, although not shown, the inner container portion L2 having a small diameter body portion is arranged inside the outer container portion L1 having a large diameter body portion with a gap in advance. A double container body of a type in which the mouth and neck of the inner container is fitted in the mouth and neck of the outer container and both are integrated may be used.

In the present embodiment, the inner cap 10 is formed of a tubular member 10a and a bottom member 10b, as shown in FIG.
The tubular member 10a protrudes inward from the stopper cylinder 14 that is liquid-tightly plugged into the mouth neck 6, the locking piece 12 attached to the upper end of the cylinder, and the lower end of the stopper cylinder 14. A first ring bottom plate 17 is provided.
The locking piece 12 is formed by hanging a vertical cylinder portion 12b from the upper end of the stopper cylinder 14 via an outward ring plate portion 12a. The locking piece 12 is locked to the convex portion of the small outer diameter portion 6a of the mouth neck portion 6, whereby the inner cap 10 is fitted to the mouth neck portion 6.
The bottom member 10b has a second ring-shaped plate portion 18 mounted on the first ring-shaped bottom plate 17, and the valve seat cylinder 20 is bulged from the inner peripheral portion of the second ring-shaped plate portion 18. The suction port A is opened in a part of the valve seat cylinder 20. The valve seat cylinder 20 has a cylinder length such that it rushes into the cylinder 36 through the communication port B of the cylinder 36 described later.
In the valve seat cylinder 20 of the illustrated example, the diameter-expanding head 20c protrudes from the large-diameter base cylinder portion 20a via the small-diameter intermediate cylinder portion 20b, and a suction port A is formed in the upper portion of the intermediate cylinder portion 20b. ing. However, these structures can be changed as appropriate.

The first valve body 22 is formed from an elastic cylinder portion 22a fitted to the intermediate cylinder portion 20b, an inner cylinder portion 22b hanging from the lower end of the elastic cylinder portion 22a via a step, and a lower end portion of the inner cylinder portion 22b. It has an outer cylinder portion 22d that stands up via a connecting cylinder portion 22c. The first check valve V1 is formed by the elastic cylinder portion 22a and the suction port A. The outer cylinder portion 22d is fitted to the lower inner surface of the stopper cylinder 14, and the inner cylinder portion 22b is fitted to the convex portion of the outer surface of the base cylinder portion 20a, whereby the first valve body 22 is fixed to the stopper cylinder 14. In this state, the upper end side of the elastic cylinder portion 22a is widened so that the first check valve V1 is opened.
The role of the first check valve V1 described above is to shut off the contents in the container body 2 from the outside air at the stage of replacing the container, and at the stage of being used as a part of the discharge device described later. , To prevent the flow of liquid from causing backflow.

The cap cover 24 is attached to the outside of the mouth neck 6 and the inner cap 10. The cap cover 24 has a cover peripheral wall 24b that fits (screws) into the mouth neck 6 from the outer periphery of the top wall 24a, and is liquid-tight from the lower surface of the central portion of the top wall 24a to the upper part of the inner surface of the plug cylinder 14. Each of the seal cylinders 24c to be fitted to the above is hung down. However, this cap cover 24 can be omitted.

FIG. 2 shows a modified example of the liquid container of FIG.
In this example, the second outside air introduction hole 8B penetrating the outer layer L1 portion of the mouth and neck is formed instead of the bottom crack type first outside air introduction hole 8A.
In order to prevent the inner layer L2 peeled off from the outer layer L1 from sticking to the outside of the plug cylinder 14 to hinder the suction of the contents and leave the contents unsucked, an appropriate number of auxiliary ribs r Is attached, and a liquid passage groove g is formed from the auxiliary rib to the lower part of the outer peripheral surface of the plug cylinder 14.

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

3 to 4 show a discharge device according to a second embodiment of the present invention. This discharge device includes a liquid container 1 and a dispenser 30. Each of these members can be made of synthetic resin or metal. Note that FIG. 4 shows the configuration of the dispenser 30 alone. This dispenser may have a known dispenser configuration, except that it does not have a first check valve.

The liquid container 1 has the same structure as the liquid container of FIG. 1, which is a refill container, except that it does not have a cap cover 24.

The dispenser 30 is composed of an outer cap 32, a cylinder 36, a retaining cylinder 37, and an operating member 38.

The outer cap 32 has a mounting cylinder portion 32a fitted (screwed in the illustrated example) to the outer surface of the mouth neck portion 6, and an inward flange 32b projects inward from the upper end of the mounting cylinder portion 32a. In the inward flange 32b of the illustrated example, the inner peripheral portion is raised from the outer peripheral portion via the step portion S, and the guide cylinder portion 32c is erected from the step portion S. The flange hole of the inward flange 32b forms an insertion port D of the operating member 38.

The retaining cylinder 37 is a means for retaining the operating member described later, and the lower half of the retaining cylinder 37 is fitted to the upper inner surface of the cylinder 36, and the outer rib 37a is fitted from the middle portion of the outer surface of the retaining cylinder 37. Is protruding outward. The outer rib 37a is in contact with the upper surface of the flange portion 36b, and the upper side of the outer rib 37a is engaged with the inner peripheral portion of the inward flange 32b.

The cylinder 36 has a flange portion 36b protruding outward from the upper end portion of the cylinder peripheral wall 36a, and the flange portion 36b is sandwiched between the inward flange 32b and the ring plate portion 12a via the packing P. , Suspended in the plug cylinder 14. An annular bottom wall 36c protrudes inward from the lower end of the cylinder peripheral wall 36a, and the inner peripheral end of the annular bottom wall 36c is a raised portion E1. A communication port B is opened inside the peripheral end surface of the annular bottom wall 36c. The intermediate cylinder portion 20b and the diameter-expanding head 20c of the valve seat cylinder 20 are inserted into the cylinder 36 through the communication port B. Further, the cylinder peripheral wall 36a is extended downward, and the extension wall portion 36d is sandwiched between the inner cylinder portion 22b and the outer cylinder portion 22d of the first valve body 22 described above.

As shown in FIG. 3, the operating member 38 is formed of a piston guide 40, a stem 46, a tubular piston 48, and a discharge head 50. Next, a preferable example of the operating member 38 will be described, but the structure thereof can be appropriately changed.

The piston guide 40 erects a guide cylinder portion 40b having an upper end opening from the peripheral edge of the bottom plate 40a, and hangs a leg tubular portion 40d facing the inner peripheral surface of the cylinder 36 from the peripheral edge of the bottom plate 40a via the second valve seat portion 40c. doing. A first liquid passage hole 40e is opened between the second valve seat portion 40c and the upper end portion of the leg cylinder portion 40d, and a second liquid passage hole 40f is opened at the lower portion of the guide cylinder portion 40b. A first coil spring C1 is interposed between the lower surface side of the piston guide 40 and the annular bottom wall 36c of the cylinder 36. In the illustrated example, the lower end portion of the first coil spring C1 is engaged around the raised portion E1 at the inner peripheral end of the annular bottom wall 36c. The piston guide 40 is configured such that the bottom plate 40a and the leg cylinder portion 40d approach the valve seat cylinder 20 at regular intervals, as shown by an imaginary line in FIG. 3, with the operating member 38 in the most lowered state. ing.

The stem 46 is fitted to the upper outer surface of the guide cylinder portion 40b and stands up from the fitting portion, and the discharge head 50 is connected to the upper end portion thereof. The stem 46 of the illustrated example hangs from the lower end of the small-diameter tubular portion 46a shown in FIG. 3 via the enlarged-diameter tubular portion 46b. The lower portion of the small-diameter cylinder portion 46a is fitted to the upper outer surface of the guide cylinder portion 40b, and an annular rib 46d that bites into the guide cylinder portion 40b from the small-diameter cylinder portion 46a is projected at this fitting portion.

The tubular piston 48 is formed by connecting each intermediate portion of the inner peripheral wall portion 48a and the outer peripheral wall portion 48b in the vertical direction with a connecting wall portion 48c, and the upper end portion and the lower end portion of the outer peripheral wall portion 48b are connected to the inner peripheral surface of the cylinder 36. It is slidably fitted to the cylinder. The upper portion of the inner peripheral wall portion 48a is in sliding contact with the inner peripheral surface of the large diameter tubular portion 46c. A second check valve V2 is formed by the lower end of the inner peripheral wall portion 48a and the second valve seat portion 40c.

The discharge head 50 may have any structure as long as it is connected to the stem 46 and can discharge the contents from the discharge port (nozzle hole 56f) that communicates with the stem 46 when pushed down. As a suitable illustrated example, a type that shuts off the tip of the nozzle will be described, but the structure thereof can be changed as appropriate.
The illustrated discharge head 50 is composed of a support base 52, a head main body 56, a valve rod 58, a substrate 60, and a lever member 62.
The support base 52 is fitted and fixed to the upper end portion of the stem 46, and is formed so as to be vertically movable together with the stem. The support base hangs a joint cylinder 52c fitted to the stem 46 from the inner peripheral portion of the top plate 52a, and a slide cylinder 52b from the outer peripheral portion of the top plate 52a, and communicates with the stem 46 from the central portion of the top plate 52a. The support cylinder 52d is erected.
The head body 56 has an outer peripheral wall 56b that hangs down from the outer edge of the top plate 56a. The lower outer surface of the outer peripheral wall is slidably in contact with the guide cylinder portion 32c, and the lower half inner surface of the outer peripheral wall 56b is slidably in contact with the outer surface of the slide cylinder 52b.
Further, in the head body 56, a horizontal cylinder (injection cylinder 56d) that opens in the front surface of the outer peripheral wall 56b is horizontally provided in the front-rear direction from the front end portion to the rear end portion of the top plate 56a, and the tip thereof is inserted into the cylinder hole. The injection cylinder 56d is formed by inserting the nozzle cylinder 56e having the nozzle hole 56f into the injection cylinder 56e. The nozzle cylinder 56e is tapered and the nozzle hole 56f is opened inside the narrowed portion (peripheral portion of the nozzle hole) 56g. Further, the rear surface of the injection cylinder 56d is closed by a vertical rear wall 56h. A gap is provided between the rear wall and the rear wall portion of the outer peripheral wall 56b of the head body for inserting a lever member described later. A communication port is formed in the lower part of the cylinder wall of the injection cylinder, and the hanging cylinder 56i from around the communication port is fitted to the outer surface of the support cylinder 52d in a liquid-tight and slidable manner.
A valve rod 58 urged forward by the second coil spring C2 is inserted into the injection cylinder 56d. The tip surface of the valve stem is in contact with the rear side of the hole edge of the nozzle hole 56f to form a shut-off valve V3. By adopting the shut-off valve V3, the inconvenience of contact between the outside air entering through the nozzle hole 56f and the contents is avoided, and the airtightness is further improved. The rear end portion of the valve rod 58 penetrates the rear wall 56h and projects rearward. Further, on the lower surface of the injection cylinder 56d, a substrate 60 having a communication port through which the hanging cylinder 56i is inserted is horizontally provided. A communication port for inserting a lever member is bored in the rear portion of the substrate 60, and bearings are provided on both sides of the communication port. A lever member 62 having a "dogleg" shape when viewed from the side is provided on the bearing. The upper end of the lever member is locked to the rear end of the valve rod 58, and the lower portion of the lever member is bifurcated and brought into contact with the top plates 52a on both sides of the hanging cylinder 56i.
As a result, when the discharge head 50 is pushed down, the head body 56 is lowered with respect to the support base 52, the valve rod 58 is retracted by the action of the lever member 62, the shut-off valve V3 is opened, and the push-down is released. Due to the elastic restoring force of the second coil spring C2, the lever member 62 returns to its original posture, the shut-off valve V3 closes, and the head body 56 rises relative to the support base 52.

Since the dispenser 30 does not have the first check valve V1 for sucking liquid in the pump structure (the portion composed of the cylinder 36 and the tubular piston 48), the dispenser 30 cannot be used alone. It can be used only after it is set in the above-mentioned liquid container 1.

In the above configuration, when the discharge head 50 is pushed down from the state of FIG. 3, the discharge head main body 56 is lowered with respect to the support base 52, the valve rod 58 is retracted, the shut-off valve V3 is opened, and the operating member 38 is opened. The entire body descends with respect to the cylinder 36, and the liquid in the cylinder 36 is discharged from the nozzle hole 56f via the second check valve V2 and the shutoff valve V3. When the push-down is released, the discharge head main body 56 rises with respect to the support base 52 and the entire operating member 38 rises with respect to the cylinder 36, and the shut-off valve V3 and the second check valve V2 close, respectively. Further, the first check valve V1 is opened by raising the operating member 38, and the liquid of the container body 2 passes through the inside of the valve seat cylinder 20 through which the communication port B is inserted through the ring hole of the first ring-shaped plate portion 17. , It is sucked into the cylinder 36 through the suction port A and the first check valve V1. By sucking up this liquid, the inside of the container body 2 becomes negative pressure, the inside of the inner layer L2 is reduced in volume, and outside air enters between the inner layer L2 and the outer layer L1 from the first outside air introduction hole 8A.
When the liquid in the container body 2 is used up, the mouth and neck portion 6 of the container body 2 is removed from the mounting cylinder portion 32a, the cap cover 24 of the newly prepared refill container is removed, and the mouth and neck portion 6 is attached to the mounting cylinder portion. It may be fitted in 32a. As a result, the plug cylinder 14 is inserted into the cylinder 36, the extension wall portion 36d is inserted between the outer cylinder portion 22d and the inner cylinder portion 22b, and the state shown in FIG. 3 is obtained.

5 to 7 show a discharge device according to a third embodiment of the present invention. This embodiment is different from the second embodiment in the structures of the inner cap 10, the first valve body 22, the cylinder 36, and the cap cover 24.

In the present embodiment, the inner cap 10 is formed of a plug cylinder 14 which is a single member. The plug cylinder 14 has a bottom portion 16 that protrudes inward in an inward flange shape from the lower end of the cylinder wall, and a suction port A is opened inside the bottom portion 16. The above-mentioned auxiliary rib r is attached to the lower surface of the bottom portion 16, but this may be omitted.
In the illustrated example, the lower cylinder portion 14b is formed to have a smaller diameter than the upper cylinder portion 14a of the plug cylinder 14. Then, as shown in FIG. 5, a liquid passage groove g is formed from the lower end of the lower tubular portion 14b to the lower portion of the upper tubular portion 14a. In the illustrated example, as shown in FIG. 6, a plurality of liquid passage grooves g are provided at equal intervals over the entire outer surface of the plug cylinder 14.
Further, the peripheral edge of the suction port A of the plug cylinder 14 is raised to form an annular first valve seat t.

The first valve body 22 supports the valve plate 22g via an appropriate number (three in the illustrated example) elastic support pieces 22f projecting inward at equal intervals from the support ring 22e. The support ring 22e is placed on the bottom portion 16 and the valve plate 22g is brought into contact with the first valve seat t to form the first check valve V1. The support ring 22e is fitted on the inner surface of the lower tubular portion 14b.

The cylinder 36 has a bulging cylinder portion 36e that rises from the inner peripheral portion of the annular bottom wall 36c. As shown by an imaginary line in FIG. 5, the raised cylinder portion 36e serves to narrow the space between the piston guide 40 of the operating member 38 and the cylinder 36 when the operating member 38 of the dispenser 30 is in the most lowered state. Have. A first coil spring C1 is interposed between the lower surface side of the piston guide 40 and the annular bottom wall 36c of the cylinder 36 so as to surround the raised cylinder portion 36e. In the illustrated example, the lower end portion of the raised cylinder portion 36e is a large outer diameter portion E2, and the lower end portion of the first coil spring C1 is engaged around the large outer diameter portion.
A communication port B for communicating the inside of the cylinder 36 and the first check valve V1 is formed at an appropriate position of the raised cylinder portion 36e (the large outer diameter portion E2 in the illustrated example). In the present embodiment, as shown in FIG. 6, a plurality of (three in the illustrated example) communication ports B are arranged at equal intervals in the circumferential direction, but this structure can be appropriately changed.
Further, the extension wall portion 36b hangs down from the lower surface of the annular bottom wall 36c of the cylinder 36 to the vicinity of the support ring 22e to prevent the support ring 22e from coming out upward.

FIG. 7 shows an embodiment of a refill container suitable for the discharge device of the present embodiment. In this example, the cap cover 24 is provided with a pressing means 26 for pressing the valve plate 22g.
The pressing means 26 includes a fitting cylinder portion 26a fitted in the seal cylinder portion 24c, a spring portion 26b extending downward from the fitting cylinder portion 26a, and a contact portion 26c attached to the tip of the spring portion. It is formed by. The spring portion 26b can be formed as a spiral spring. By using the pressing means 26, the sealing property between the valve plate 26g and the first valve seat t can be improved.

1 ... Liquid container 2 ... Container body 4 ... Body 6 ... Mouth neck 6a ... Small outer diameter 8A ... 1st outside air introduction hole 8B ... 2nd outside air introduction hole 10 ... Inner cap 10a ... Cylindrical member 10b ... Bottom member 12 ... Locking piece 12a ... Ring plate part 12b ... Vertical cylinder part 14 ... Plug cylinder 14a ... Upper cylinder part 14b ... Lower cylinder part 16 ... Bottom 17 ... First ring-shaped bottom plate 18 ... Second ring-shaped bottom plate 20 ... Valve seat Cylinder 20a ... Base cylinder 20b ... Intermediate cylinder 20c ... Expanded head
22 ... First valve body 22a ... Elastic cylinder part 22b ... Inner cylinder part 22c ... Connecting plate part 22d ... Outer cylinder part 22e ... Support ring 22f ... Elastic support piece 22g ... Valve plate 24 ... Cap cover 24a ... Top wall 24b ... Cover Peripheral wall 24c ... Seal cylinder 26 ... Pushing means 26a ... Fitting cylinder 26b ... Spring 26c ... Contact 30 ... Dispenser 32 ... Outer cap 32a ... Mounting cylinder 32b ... Inward flange 32c ... Guide cylinder
36 ... Cylinder 36a ... Cylinder peripheral wall 36b ... Brim portion 36c ... Circular bottom wall
36d ... Extension wall part 36e ... Raised cylinder part 37 ... Retaining cylinder 37a ... Outer rib
38 ... Actuating member 40 ... Piston guide 40a ... Bottom plate 40b ... Guide cylinder
40c ... 2nd valve seat 40d ... Leg tube 40e ... 1st liquid passage hole 40f ... 2nd liquid passage hole
46 ... Stem 46a ... Small diameter tube 46b ... Expanded diameter 46c ... Large diameter tube
46d ... Circular rib 48 ... Cylindrical piston 48a ... Inner peripheral wall part 48b ... Outer peripheral wall part 48c ... Connecting wall part 50 ... Discharge head 52 ... Support base 52a ... Top plate 52b ... Slide cylinder 52c ... Joint cylinder 52d ... Support cylinder 56 ... Head Main body 56a ... Top plate 56b ... Outer wall 56d ... Injection cylinder 56e ... Nozzle cylinder 56f ... Nozzle hole 56g ... Squeezing part 56h ... Rear wall 56i ... Hanging cylinder 58 ... Valve rod 60 ... Board 62 ... Lever member
A ... Suction port B ... Communication port C1 ... 1st coil spring C2 ... 2nd coil spring D ... Insertion port E1 ... Raised part E2 ... Large outer diameter part g ... Liquid flow groove L1 ... Outer container part (outer layer) L2 ... Contents Instrument (inner layer) P ... Packing r ... Auxiliary rib S ... Step t ... 1st valve seat V1 ... 1st check valve V2 ... 2nd check valve V3 ... Shut-off valve

Claims (5)

The container body (2) that stands up the mouth and neck (6),
An inner cap (10) including a plug tube (14) that is liquid-tightly plugged into the mouth neck (6),
Has been provided with a,
The container body (2) is composed of an outer container portion (L1) and a flexible inner container portion (L2) formed in the outer container portion, in order to introduce outside air between the outer container portion and the inner container portion. The outside air introduction hole (8A, 8B) is a double container body provided in a part of the outer container portion (L1).
A suction port (A) is opened in the bottom portion (16) that closes the lower surface of the plug tube (14), and a first check valve (V1) that closes the suction port (A) in a closed state in a liquid-tight and airtight manner is provided. A liquid container that is suitable for replacement with a dispenser, which is characterized by being formed. A suction port (A) in which a part of the bottom portion (16) of the stopper cylinder (14) is raised as a climax valve seat cylinder (20) and is opened in a part of the cylinder wall of the valve seat cylinder (20). ) And
Further, a first valve body (22) having an elastic cylinder portion (22a) fitted so as to surround the outer circumference of the valve seat cylinder (20) is provided.
The replacement with the dispenser according to claim 1, wherein the first check valve (V1) is formed by allowing the suction port (A) to be opened and closed by the elastic cylinder portion (22a). Suitable for liquid containers. A first valve body in which a valve plate (22 g) is supported via a plurality of elastic support pieces (22 f) protruding from a support ring (22e) placed on the outer peripheral portion of the bottom portion (16) of the stopper tube (14). (22) is provided
A claim, characterized in that a first check valve (V1) is formed by allowing the suction port (A) opened at the center of the bottom portion (16) to be opened and closed by the valve plate (22 g). The liquid container according to claim 1 or 2, which is suitable for replacement with a dispenser. A cap cover (24) is attached to the outside of the mouth neck (6) and the inner cap (10).
The present invention is characterized in that the first valve body (22) is pushed down by a pushing down means (26) hanging from the cap cover (24) and is provided so as to be in pressure contact with the periphery of the suction port (A). The liquid container described in 3 which is suitable for replacement with a dispenser. The liquid container (1) according to any one of claims 1 to 3 and
It consists of a dispenser (30) attached to the mouth and neck (6).
The dispenser (30)
An outer cap (32) attached to the outer surface of the mouth neck (6) and having an insertion port (D) on the upper surface, and an outer cap (32).
A cylinder (36) that is vertically installed in the plug cylinder (14) via an outer cap (32) and opens a communication port (B).
The lower half is inserted into the cylinder (36) from the insertion port (D) in an upwardly urged state, the discharge head (50) is projected above the cylinder (36), and the second check valve (2nd check valve) It is equipped with an operating member (38) containing V2).
As the operating member (38) moves up and down with respect to the cylinder (36), the liquid in the container body (2) enters the cylinder (36) via the first check valve (V1) and the communication port (B). , A discharge device including a liquid container, characterized in that the liquid in the cylinder (36) is discharged from the discharge head (50) through the second check valve (V2).