JP2018122901A - Liquid container suitable for replacement and discharge device including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a liquid container suitable for replacement and a discharge device including the container that do not require removal of a cap of a refilling container in replacement of a container body.SOLUTION: A liquid container 1 comprises a container body 2 on which a port neck part 6 stands and an inner cap 10 which includes a plug tube 14 plugged in the port neck part 6 in a liquid tight manner. A suction port A is opened at a bottom 16 which blocks the lower surface of the plug tube 14, and a first check valve V1 is formed which blocks the suction port A in a liquid-tight and air-tight manner in a closed state. A dispenser 30 includes a cylinder 36 and an operation member 38, and contains a second check valve V2. When the operation member 38 is moved vertically with the dispenser 30 being fitted to the liquid container 1, the liquid inside the cylinder 36 is discharged from a nozzle of the operation member 38 through the second check valve V2 and the liquid inside the container body 2 is sucked into the cylinder 36 through the first check valve V1.SELECTED DRAWING: Figure 3

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 including a cylinder and an actuating member and incorporating a first check valve and a second check valve is detachably attached to the mouth and neck of the container body. By the movement, the liquid in the cylinder is discharged from the nozzle above the operating member via the second check valve, and the liquid in the container is sucked into the cylinder via the first check valve. One is known (Patent Document 1).
When the liquid in the container is used up, the dispenser is removed from the container, and a refill container having the same structure as the separately purchased container is attached to the dispenser.
When it is not appropriate to let the contents come into contact with the outside air, as shown in Patent Document 1, the container body can be a delamination container body. As is well known, this delamination container body is formed by laminating a flexible inner layer on the inner surface of the outer layer over the entire container body in such a manner that the volume can be reduced, and by providing an outside air introduction hole in a part of the outer layer. The inner layer is separated from the outer layer at a place other than the upper neck portion of the body.

JP2012-206760

In Patent Document 1, an auxiliary lid for securing the airtightness during distribution is attached to the container body of the refill container, and the cap of the refill container is removed and the contents are used up for the replacement work. The removed container body is removed from the dispenser, and a new container body is replaced. However, the inside of the container body is exposed to the outside air before 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 open air should be avoided as much as possible.
Even if there is no such situation, it is assumed that the customer may be concerned that dust may enter the container body after removing the cap and attaching it to the dispenser. There is also a risk that the contents may be spilled by unexpectedly falling the container body in the removed state.

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

The first means is a liquid container suitable for replacement,
A container body 2 that stands up the mouth and neck 6;
An inner cap 10 including a plug 14 that is liquid-tightly plugged into the mouth and neck 6;
The container body 2 includes an outer container part L1 and a flexible inner container part L2 formed in the outer container part, and introduces outside air between the outer container part and the inner container part. Outside air introduction holes 8A and 8B are double container bodies provided in a part of the outer container portion L1,
A suction port A is opened at the bottom 16 that closes the lower surface of the plug cylinder 14, and a first check valve V <b> 1 is formed that closes the suction port A in a liquid-tight and air-tight state.

This means relates to the liquid container portion of 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 14 that is plugged into the mouth and neck 6 of the container body 2, and a suction port with a first check valve V <b> 1 at the bottom 16 that closes the lower surface of the plug 14. A is formed. With such a configuration, the sealing performance of the liquid container at the time of distribution can be ensured, and the replacement work can be performed while the inner cap 10 is mounted on the mouth / neck portion 6 of the container body 2, which is convenient. .
The container body 2 is a double container body that includes an outer container portion L1 and an inner container portion L2, and an outer air introduction hole for introducing outside air is formed between the two container portions in the outer container portion L1. Therefore, even when a discharge device described later is operated, the outside air does not touch the contents in the inner container portion L2, and the airtightness during the discharge operation is ensured.

The “bottom part” may be formed integrally with the plug cylinder 15 as shown in FIG. 5, but may be formed of a plurality of separate parts. For example, in the example of FIG. 1, a bottom portion 16 is formed by a first ring-shaped bottom plate 17 and a bottom member 10b of a cylinder member 10a described later.
The reason why the valve provided in the suction port A is referred to as “first check valve” is that the valve serves as the first check valve of the pump mechanism in a state where the liquid container of this means is attached to a dispenser described later. Because it fulfills.
“Closing liquid-tight and air-tight in the closed state” means not only restricting the back flow of liquid as the first check valve of the pump, but also restricting outside air from entering the container during refilling work. It is.
The phrase “suitable for replacement” is to prevent a liquid container provided in a form combined with a dispenser in advance from being excluded from the scope of rights as a part of the discharge device described later. .
“Dual container body” means the contents on the inner surface of the outer layer which is the outer container part as shown in the example in addition to the normal double container body in which a gap is previously formed between the outer container part and the inner container part. It includes a so-called Delami container body in which an inner layer, which is a vessel portion, is laminated so that the inside thereof can be reduced in volume.

The second means includes the first means, and a suction portion in which a part of the bottom portion 16 is raised as a top valve seat cylinder 20 and is opened in a part of the cylinder wall of the valve seat cylinder 20. Forming mouth A,
Furthermore, a first valve body 22 having an elastic cylinder portion 22a fitted so as to surround the outer periphery 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 22 a fitted to the valve seat cylinder 20 so as to surround the outer periphery of the valve seat cylinder 20, and the suction port A is It is proposed that the first check valve V1 is formed by opening and closing the elastic cylinder portion 22a. 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 the desired sealing performance can be easily realized.

The third means includes the first means or the second means and the valve plate 22g 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 supported is provided,
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 is used in which a valve plate 22g is supported through a plurality of elastic support pieces 22f protruding from a support ring 22e. Since the 1st valve body 22 of such a structure is a known structure, it is easy to procure this as a part.

The fourth means includes the first means or the second means, and a cap cover 24 is attached to the outside of the mouth-neck portion 6 and the inner cap 10,
The first valve body 22 is pressed down by the pressing means 26 that hangs down from the cap cover 24 and is brought into pressure contact with the periphery of the suction port A.

  In this means, in the case of using the first valve body 22 that supports the valve plate 22g via the elastic support piece 22f protruding from the support ring 22e, it is pushed down by the push-down means 26 that hangs down from the cap cover. It has been proposed (see FIG. 7). Thereby, the closeness of the valve plate 22g to the bottom portion 16 is high.

The fifth means is a discharge device including a liquid container,
A liquid container 1 described in any of the first to third means;
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-and-neck portion 6 and having an insertion port D on the upper surface;
A cylinder 36 that is suspended in the plug cylinder 14 via the outer cap 32 and opens the communication port B;
A lower half portion is inserted into the cylinder 36 through the insertion port D in an upward biased state, and a discharge head 50 protrudes above the cylinder 36 and includes an operation member 38 having a second check valve V2. Equipped,
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 flows into the second check valve. It was comprised so that it might discharge from the discharge head 50 through V2.

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

According to the invention relating to the first means and the fifth means, the liquid container 1 is provided with the inner cap 10 having the plug 14 that is liquid-tightly plugged into the mouth-and-neck portion 6 of the container body 2, and the plug Since the first check valve V1 that closes the suction port A opening in the bottom 16 that closes the lower surface of the liquid 14 in a closed state is formed in a liquid-tight and air-tight manner, the dispenser 30 is attached while the inner cap 10 is attached. It is convenient because refilling is possible, and the liquid in the container body is exposed to the outside air through the mouth and neck during refilling work, or the container body is accidentally spilled and spilled. Can be avoided.
The container body 2 is a double container body configured to introduce the outside air between the outer container portion L1 and the inner container portion L2, and the outside air does not touch the liquid in the inner container portion. Airtightness during operation is also maintained.
According to the second aspect of the invention, since the suction port A is closed by the elastic first valve body 22 fitted on the outer surface of the valve seat cylinder 20, the elastic force of the first valve body 22 is provided. The sealing performance can be adjusted as appropriate by setting.
According to the third aspect of the invention, the first check valve V1 is closed using the first valve body 22 that supports the valve plate 22g via the plurality of elastic support pieces 22f protruding from the support ring 22e. The structure of the first valve body 22 itself is known, and it is not necessary to prepare an original mold for manufacturing the valve body. Therefore, the first valve body 22 can be procured at a low cost. .
According to the fourth aspect of the invention, since the first valve body 22 is pushed down by the push-down means 26 hanging down from the cap cover 24 and is brought into pressure contact with the periphery of the suction port A, the cap cover 24 is mounted. The sealing performance 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 longitudinal cross-sectional view of the discharge apparatus which is 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the dispenser of the discharge apparatus of FIG. It is a longitudinal cross-sectional view of the discharge apparatus which concerns on 3rd Embodiment of this invention. FIG. 6 is a partial cross section of the discharge device of FIG. 5 viewed in the VI-VI direction. It is a figure of the container body used for the discharge apparatus 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. In this embodiment, the liquid container 1 is provided as a refill container. The aspect as a part of the discharge device will be described later.

The container body 2 is formed by raising the mouth and neck portion 6 from the trunk portion 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 shape retention and an inner container portion L2 capable of volume reduction. In the example of illustration, it is set as the delamination container body which laminated | stacked the flexible inner layer L2 via the peeling layer on the inner surface of the outer layer L1 which is an outer container part. A part of the outer layer L1 is provided with a first outside air introduction hole 8A for introducing air 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.
In place of the aforementioned delamination container body, although not shown, an inner container part L2 having a small-diameter body part is disposed inside the outer container part L1 having a large-diameter body part with a gap in advance, A double container body of a type in which the mouth / neck portion of the inner container portion is fitted into the mouth / neck portion of the outer container portion and both are integrated may be used.

In the present embodiment, the inner cap 10 is formed of a cylindrical member 10a and a bottom member 10b as shown in FIG.
The tubular member 10a protrudes inwardly from the plug 14 that is liquid-tightly plugged into the mouth and neck 6, the locking piece 12 attached to the upper end of the cylinder, and the lower end of the plug 14 A first ring bottom plate 17.
The locking piece 12 is formed by hanging a vertical cylinder portion 12b from an upper end of the plug 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 6 a of the mouth-and-neck portion 6, whereby the inner cap 10 is fitted to the mouth-and-neck portion 6.
The bottom member 10 b includes a second ring-shaped plate portion 18 placed on the first ring-shaped bottom plate 17, and a valve seat tube 20 having a top 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 that enters the cylinder 36 via a communication port B of the cylinder 36 described later.
The valve seat cylinder 20 in the illustrated example protrudes from the large-diameter base cylinder portion 20a through the small-diameter intermediate cylinder portion 20b, and the enlarged-diameter head portion 20c is formed, and a suction port A is formed at the upper portion of the intermediate cylinder portion 20b. ing. However, these structures can be changed as appropriate.

The first valve body 22 includes an elastic cylinder part 22a fitted to the intermediate cylinder part 20b, an inner cylinder part 22b hanging from the lower end of the elastic cylinder part 22a through a step, and a lower end part of the inner cylinder part 22b. And an outer tube portion 22d that stands up via the connecting tube portion 22c. A first check valve V1 is formed by the elastic cylindrical portion 22a and the suction port A. The first valve body 22 is fixed to the plug cylinder 14 by fitting the outer cylinder part 22d to the lower inner surface of the plug cylinder 14 and the inner cylinder part 22b to the convex part of the outer surface of the base cylinder part 20a. In this state, the upper end side of the elastic cylinder portion 22a is expanded, and the first check valve V1 is opened.
The role of the first check valve V1 described above is to block the contents in the container body 2 from the outside air at the stage of changing the container, and at the stage when used as part of a discharge device described later. To prevent the liquid flow from causing a back flow.

  The cap cover 24 is attached to the outside of the mouth / neck portion 6 and the inner cap 10. The cap cover 24 is liquid-tight from the outer periphery of the top wall 24a to the mouth and neck portion 6 (screwed in the illustrated example) and from the lower surface of the central portion of the top wall 24a to the upper portion of the inner surface of the plug cylinder 14. Each of the seal cylinders 24c to be fitted to the bottom is suspended. However, the cap cover 24 can be omitted.

FIG. 2 shows a modification of the liquid container of FIG.
In this example, a second outside air introduction hole 8B penetrating the outer layer L1 portion of the mouth and neck is formed instead of the above-described bottom cracking type first outside air introduction hole 8A.
In order to prevent the inner layer L2 peeled off from the outer layer L1 from coming into close contact with the outside of the plug cylinder 14 to prevent the contents from being sucked up and left unabsorbed, an appropriate number of auxiliary ribs r are provided on the bottom surface of the bottom 16. 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 descriptions, the description of the same configuration as that of the first embodiment is omitted.

  3 to 4 show a discharge device according to the second embodiment of the present invention. The discharge device includes a liquid container 1 and a dispenser 30. Each of these members can be formed of synthetic resin or metal. FIG. 4 shows the configuration of the dispenser 30 alone. This dispenser can 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 the cap cover 24 is not provided.

  The dispenser 30 includes 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-and-neck portion 6, and an inward flange 32b projects inwardly from the upper end of the mounting cylinder portion 32a. The inward flange 32b in the illustrated example has an inner peripheral portion protruding from the outer peripheral portion via a stepped portion S, and a guide tube portion 32c is erected from the stepped portion S. The flange hole of the inward flange 32b forms an insertion port D for the operating member 38.

  The retaining cylinder 37 is a means for retaining an actuating member, which will be described later. The lower half of the retaining cylinder 37 is fitted to the upper inner surface of the cylinder 36, and the outer rib 37 a is inserted from the intermediate 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 protrudes outward from the upper end portion of the cylinder peripheral wall 36a, and the flange portion 36b is clamped between the inward flange 32b and the ring plate portion 12a via the packing P. It is suspended in the plug cylinder 14. An annular bottom wall 36c protrudes inwardly 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 20 b and the enlarged diameter head portion 20 c 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 extended 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 actuating member 38 is formed by a piston guide 40, a stem 46, a cylindrical piston 48, and a discharge head 50. Next, although a suitable example of the action | operation member 38 is demonstrated, the structure can be changed suitably.

  The piston guide 40 erected a guide tube portion 40b having an upper end opening from the periphery of the bottom plate 40a, and suspended a leg tube portion 40d facing the inner peripheral surface of the cylinder 36 from the periphery of the bottom plate 40a via the second valve seat portion 40c. doing. A first liquid passage hole 40e is opened between the upper ends of the second valve seat part 40c and the leg cylinder part 40d, and a second liquid passage hole 40f is opened at the lower part of the guide cylinder part 40b. A first coil spring C <b> 1 is interposed between the lower surface side of the piston guide 40 and the annular bottom wall 36 c 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 part 40d approach the valve seat cylinder 20 with a certain interval as shown by an imaginary line in the state where the operation member 38 is lowered most. ing.

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

  The cylindrical piston 48 is formed by connecting upper and lower intermediate portions of the inner peripheral wall portion 48a and the outer peripheral wall portion 48b 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. And is slidably fitted. The upper part of the inner peripheral wall part 48a is in sliding contact with the inner peripheral surface of the large diameter cylindrical part 46c. A second check valve V2 is formed by the lower end portion of the inner peripheral wall portion 48a and the second valve seat portion 40c.

The discharge head 50 is connected to the stem 46 and may have any structure as long as the contents can be discharged from the discharge port (nozzle hole 56f) communicating with the stem 46 when pressed down. As a preferred illustrated example, a type in which the tip of the nozzle is shut will be described, but the structure can be changed as appropriate.
The illustrated discharge head 50 includes 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 move up and down together with the stem. The support base hangs a joint cylinder 52c fitted to the stem 46 from the inner periphery of the top plate 52a, and a slide cylinder 52b from the outer periphery of the top plate 52a, and communicates with the stem 46 from the center of the top plate 52a. The supporting cylinder 52d is raised.
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 tube 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 tube 52b.
Further, the head main body 56 is provided with a horizontal cylinder (injection cylinder 56d) that opens to the front surface of the outer peripheral wall 56b from the front end to the rear side of the top plate 56a in the front-rear direction, and into the end of the cylinder hole. An injection cylinder 56d is formed by inserting a nozzle cylinder 56e having a nozzle hole 56f into the nozzle cylinder 56e. The nozzle cylinder 56e is narrowed down, and a nozzle hole 56f is opened inside the narrowed portion (a peripheral portion of the nozzle hole) 56g. The rear surface of the injection cylinder 56d is closed by a vertical rear wall 56h. A gap for inserting a lever member to be described later is provided between the rear wall and the rear wall portion of the outer peripheral wall 56b of the head body. A communication port is formed in a lower portion of the cylinder wall of the injection tube, and a hanging tube 56i from around the communication port is fitted on the outer surface of the support tube 52d in a liquid-tight and slidable manner.
A valve rod 58 urged forward by a second coil spring C2 is inserted into the injection cylinder 56d. The tip end surface of the valve stem is in contact with the rear side of the nozzle hole 56f, forming a shutoff valve V3. By adopting the shut-off valve V3, it is possible to avoid the inconvenience of contact between the outside air entering from the nozzle hole 56f and the contents, and further improve the airtightness. The rear end portion of the valve rod 58 penetrates the rear wall 56h and protrudes rearward. A substrate 60 having a communication port through which the drooping cylinder 56i is inserted is provided on the lower surface of the injection cylinder 56d. A communication port for inserting the lever member is formed 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 "<" shape is provided on the bearing so as to be seen from the side. The upper end portion of the lever member is locked to the rear end portion of the valve rod 58, and the lower portion of the lever member is divided into two portions and brought into contact with the top plate 52a portions on both sides of the drooping cylinder 56i.
Thereby, when the discharge head 50 is pushed down, the head main 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 pushing down is released. By the elastic restoring force of the second coil spring C2, the lever member 62 returns to the original posture, the shut-off valve V3 is closed, and the head body 56 is raised relative to the support base 52.

  Since the dispenser 30 does not have the first check valve V1 for sucking up the liquid in the pump structure (the portion constituted by the cylinder 36 and the cylindrical piston 48), it cannot be used alone. It can be used only after being set in the liquid container 1 described above.

In the above configuration, when the ejection head 50 is pushed down from the state of FIG. 3, the ejection 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 The whole descends with respect to the cylinder 36, and the liquid in the cylinder 36 is discharged from the nozzle hole 56f through 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 operating member 38 as a whole rises with respect to the cylinder 36, and the shut-off valve V3 and the second check valve V2 close. The first check valve V1 is opened by the raising of the actuating member 38, and the liquid in the container body 2 passes through the inside of the valve seat cylinder 20 through which the communication port B is inserted from the ring hole of the first ring-shaped plate portion 17. The air is sucked into the cylinder 36 through the suction port A and the first check valve V1. By sucking up the liquid, the inside of the container body 2 becomes negative pressure, the volume of the inner layer L2 is reduced, and the outside air enters from the first outside air introduction hole 8A between the inner layer L2 and the outer layer L1.
When the liquid in the container body 2 is used up, the mouth / neck part 6 of the container body 2 is removed from the attachment cylinder part 32a, the cap cover 24 of the newly prepared refill container is removed, and the mouth / neck part 6 is attached to the attachment cylinder part. What is necessary is just to fit in 32a. As a result, the plug cylinder 14 is inserted into the cylinder 36, and the extension wall 36d is inserted between the outer cylinder 22d and the inner cylinder 22b, resulting in the state shown in FIG.

  5 to 7 show a discharge device according to a third embodiment of the present invention. The present embodiment is different from the second embodiment in the structure 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 by a plug 14 that is a single member. The plug cylinder 14 has a bottom portion 16 that protrudes inwardly in the shape of an inward flange from the lower end of the cylinder wall, and a suction port A is opened on the inner side. 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. And as shown in FIG. 5, the liquid flow groove g is formed from the lower end of the said lower cylinder part 14b to the lower part of the upper cylinder part 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.
An annular first valve seat t is formed by raising the peripheral edge of the suction port A of the plug cylinder 14.

  The first valve body 22 supports the valve plate 22g via an appropriate number (three in the illustrated example) of elastic support pieces 22f protruding inward from the support ring 22e at equal intervals. 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 a first check valve V1. The support ring 22e is fitted on the inner surface of the lower cylindrical portion 14b.

The cylinder 36 has a raised tubular portion 36e having a top that rises from the inner peripheral portion of the annular bottom wall 36c. As shown by an imaginary line in FIG. 5, the raised cylindrical portion 36 e plays a role of narrowing a space between the piston guide 40 of the operating member 38 and the cylinder 36 in a state where the operating member 38 of the dispenser 30 is lowered most. 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 cylindrical 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 (the large outer diameter portion E2 in the illustrated example) of the raised cylinder portion 36e. In this embodiment, as shown in FIG. 6, a plurality (three in the illustrated example) of communication ports B are arranged at equal intervals in the circumferential direction, but this structure can be changed as appropriate.
Further, the extension wall portion 36b is suspended from the lower surface of the annular bottom wall 36c of the cylinder 36 to the vicinity of the support ring 22e, thereby preventing the support ring 22e from coming out upward.

FIG. 7 shows an example of a refill container suitable for the discharge device of the present embodiment. In this example, a push-down means 26 for pushing down the valve plate 22g is attached to the cap cover 24.
The push-down means 26 includes a fitting cylinder part 26a fitted in the seal cylinder part 24c, a spring part 26b extending downward from the fitting cylinder part 26a, and a contact part 26c attached to the tip of the spring part. And is formed. The spring part 26b can be formed as a spiral spring. By using the push-down means 26, the sealing performance between the valve plate 26g and the first valve seat t can be enhanced.

DESCRIPTION OF SYMBOLS 1 ... Liquid container 2 ... Container body 4 ... Torso part 6 ... Mouth neck part 6a ... Small outer diameter part 8A ... 1st external air introduction hole 8B ... 2nd external air introduction hole 10 ... Inner cap 10a ... Cylindrical member 10b ... Bottom member DESCRIPTION OF SYMBOLS 12 ... Locking piece 12a ... Ring board part 12b ... Vertical cylinder part 14 ... Plug cylinder 14a ... Upper cylinder part 14b ... Lower cylinder part 16 ... Bottom part 17 ... 1st ring-shaped bottom board 18 ... 2nd ring-shaped bottom board 20 ... Valve seat Tube 20a ... Base tube portion 20b ... Intermediate tube portion 20c ... Expanded diameter head
22 ... 1st 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 part 26 ... Pushing means 26a ... Fitting cylinder part 26b ... Spring part 26c ... Abutting part 30 ... Dispenser 32 ... Outer cap 32a ... Mounting cylinder part 32b ... Inward flange 32c ... Guide cylinder part
36 ... Cylinder 36a ... Cylinder peripheral wall 36b ... Bridge 36c ... Annular bottom wall
36d ... Extension wall part 36e ... Raised cylinder part 37 ... Stopping cylinder 37a ... Outer rib
38 ... Actuating member 40 ... Piston guide 40a ... Bottom plate 40b ... Guide cylinder
40c ... 2nd valve seat part 40d ... Leg cylinder part 40e ... 1st flow hole 40f ... 2nd flow hole
46 ... Stem 46a ... Small diameter cylindrical part 46b ... Large diameter part 46c ... Large diameter cylindrical part
46d ... annular rib 48 ... cylindrical piston 48a ... inner peripheral wall 48b ... outer peripheral wall 48c ... connecting wall 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 peripheral wall 56d ... Injection cylinder 56e ... Nozzle cylinder 56f ... Nozzle hole 56g ... Restriction part 56h ... Rear wall 56i ... Dripping cylinder 58 ... Valve rod 60 ... Substrate 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 outside diameter part g ... Liquid flow groove L1 ... Outer container part (outer layer) L2 ... Contents Container part (inner layer) P ... packing r ... auxiliary rib S ... step part t ... first valve seat V1 ... first check valve V2 ... second check valve V3 ... shut-off valve

Claims (5)

A container body (2) that stands up the mouth and neck (6);
An inner cap (10) including a plug (14) which is liquid-tightly plugged into the mouth-and-neck (6);
The container body (2) includes an outer container part (L1) and a flexible inner container part (L2) formed in the outer container part, and is interposed between the outer container part and the inner container part. An outside air introduction hole (8A, 8B) for introducing outside air is a double container body provided in a part of the outer container part (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 liquid-tight and air-tight state in a closed state is provided. A liquid container suitable for replacement, characterized by being formed. A part of the bottom (16) of the plug cylinder (14) is raised as a top valve seat cylinder (20), and a suction port (A) opened to a part of the cylinder wall of the valve seat cylinder (20). )
Furthermore, a first valve body (22) having an elastic cylinder portion (22a) fitted so as to surround the outer periphery of the valve seat cylinder (20) is provided,
The liquid suitable for replacement according to claim 1, wherein a first check valve (V1) is formed by allowing the suction port (A) to be opened and closed by the elastic cylinder portion (22a). container. A first valve body in which the valve plate (22g) is supported via a plurality of elastic support pieces (22f) protruding from a support ring (22e) placed on the outer peripheral portion of the bottom portion (16) of the plug cylinder (14). (22)
The first check valve (V1) is formed by enabling the suction port (A) opened at the center of the bottom portion (16) to be opened and closed by the valve plate (22g). A liquid container suitable for replacement according to claim 1 or 2. 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 a push-down means (26) depending from the cap cover (24) so as to be brought into pressure contact with the periphery of the suction port (A). A liquid container suitable for the replacement described in 3. A liquid container (1) according to any of claims 1 to 3,
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 and neck (6) and having an insertion port (D) on the upper surface;
A cylinder (36) suspended in the plug cylinder (14) through an outer cap (32) and opening the communication port (B);
The lower half is inserted into the cylinder (36) from the insertion port (D) in an upwardly biased state, and the discharge head (50) protrudes above the cylinder (36), and the second check valve ( And a working member (38) containing V2),
As the operating member (38) moves up and down relative 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, wherein the liquid in the cylinder (36) is discharged from the discharge head (50) through the second check valve (V2).