JP6198454B2 - Discharge container - Google Patents

Description

  The present invention relates to a discharge container. In detail, it is related with the aerosol container provided with the container main body made from a synthetic resin.

The aerosol container includes a container body having pressure resistance and an aerosol valve fixed to the opening, and the container body is filled with contents and a pressurizing agent. The aerosol container can easily discharge the contents to the outside simply by operating the aerosol valve. Therefore, hair products such as styling agents, hair dyes, skin care products such as lotions, sunscreens, antiperspirants, cooling agents, medicines such as anti-inflammatory analgesics, athlete's foot drugs, aromatics, insecticides, insecticides, etc. It is used for various applications such as household products. In such aerosol containers, it has been the mainstream to use metals such as aluminum and tinplate as the material of the container body because of the requirements of hermeticity and pressure resistance.
On the other hand, in recent years, there has been a demand for lighter products and recyclable products, and aerosol containers having the following synthetic resin container bodies are known.
Patent Document 1 discloses an aerosol container that includes a metal cover plate and a synthetic resin container body, and the cover plate is welded and fixed to the inner periphery of the container body by high-frequency welding.
Patent Document 2 includes a container portion made of transparent resin, a stopper fixed to the upper end of the container portion, and a soft elastic cylinder fixed to the stopper, and the stopper, the soft elastic cylinder, A spray container in which is fixed by an adhesive is disclosed.
Patent Document 3 discloses an aerosol injection container in which the container main body, the injection valve (valve), and the injection head (push button) are all made of synthetic resin.

Japanese Utility Model Publication No. 2-2451 Japanese Utility Model Publication No.57-7666 JP-A-9-142554

However, since the container body of Patent Document 1 and the container part of Patent Document 2 are injection-molded products, it cannot be said that the stretchability with respect to the pressure of the pressurizing agent filled therein is sufficient, and the impact is external due to dropping or the like. There is a problem that the container body and the container part burst when the container is added from above or in an environment such as a high temperature.
Although the container body of Patent Document 3 is a blow molded product, since the valve is welded directly to the container body, gas escapes between the container body and the valve even if the container body tries to expand and deform due to the pressure of the contents. A gap cannot be formed, and eventually the thin-walled portion of the container body is ruptured.
An object of the present invention is to provide a discharge container that is highly safe, lightweight, and excellent as a recycled product.

The discharge container of the present invention includes a synthetic resin container body formed by blow molding, a valve for opening and closing a passage between the inside and outside of the container body, and a synthetic resin fixing member for fixing the valve to the container body. An opening of the container main body is provided with a locking step on the inner surface of the neck of the container body, the outer periphery of the valve is engaged with the locking step, and a fixing member is placed over the locking step. It is characterized in that it has secured the valve to the container body by a part and the fixing member and the soluble Chakusu Rukoto. Further, the valve includes a housing formed with a flange portion that engages with a locking step portion of the container body, a stem that is inserted into the housing so as to be movable up and down, and a stem rubber that closes a stem hole of the stem. The fixing member is preferably inserted so as to overlap the flange portion of the housing. The valve includes a housing formed with a flange portion that engages with a locking step portion of the container body, a stem that is inserted into the housing so as to be movable up and down, and a stem rubber that closes a stem hole of the stem. Preferably, the fixing member includes a plug portion that holds the housing and the stem rubber, and a lid portion that is disposed on the upper surface of the opening of the container body.

The discharge container of the present invention is a container body made of synthetic resin molded by blow molding,
A valve that opens and closes a passage between the inside and outside of the container body, and a fixing member that fixes the valve to the container body, and the valve is formed by welding or bonding the opening of the container body and the fixing member. Since it adheres to the container body, even if the discharge container is dropped, the container body does not crack or rupture. Specifically, the biaxially stretched container body has a blow part below the shoulder having a larger diameter than the opening, and a part where the opening and the fixing member are welded or bonded is a metal cover cap. Since the center of gravity of the discharge container can be kept low, it is possible to avoid collision with the ground or the like from a portion above the neck portion even if the discharge container is accidentally dropped. Furthermore, the container body that has been blown biaxially stretched has a stretched portion of the blower below the shoulder that is elastic with respect to pressure. Or the container body is prevented from being ruptured.
In such a discharge container, when the outer peripheral part of the valve is engaged with the opening of the container body and a fixing member is put on the upper part and welded or adhered, the blow part expands and deforms when the pressure rises as the temperature rises. And when temperature rises, it deform | transforms so that an opening part may spread with expansion of a blow part. At this time, since the fixing member is welded or bonded, the holding of the valve (engagement between the valve and the container main body) is loosened and the sealing performance of the valve itself is lowered, and the valve does not come off. That is, the sealing performance of the valve itself is lowered, and the internal gas and the like can be safely discharged from that portion.

FIG. 1a is a side sectional view showing an embodiment of the discharge container of the present invention, FIG. 1b is a side sectional view showing a welding portion between the container body and a fixing lid, and FIGS. It is a partial side sectional view showing other embodiments of the discharge container of the present invention. 2a and 2b are side sectional views showing the container body and the aerosol valve of the discharge container of FIG. 1, respectively, and FIG. 2c is a plan view showing the fixed lid of the discharge container of FIG. It is a cross-sectional side view which shows the state which the discharge container of FIG. 1 deform | transformed. 4a and 4b are partial side sectional views showing other embodiments of the discharge container of the present invention. It is side surface sectional drawing which shows other embodiment of the discharge container of this invention. FIG. 6a is a side sectional view showing still another embodiment of the discharge container of the present invention, FIG. 6b is a perspective view showing a fixed lid of the discharge container, and FIG. 6c is a part of the discharge container. FIG. It is side surface sectional drawing which shows other embodiment of the discharge container of this invention. 8a is a side sectional view showing still another embodiment of the discharge container of the present invention, FIG. 8b is a perspective view showing a discharge member mounted on the discharge container, and FIGS. 8e is a side cross-sectional view showing still another discharge member, and FIG. 8f is a cross-sectional view taken along line XX of FIG. 8e.

A discharge container 10 in FIG. 1 has a container body 11 made of a synthetic resin, an aerosol valve 12 (hereinafter referred to as a valve) disposed in the mouth portion, and a fixed lid 13 that fixes the valve to the container body 11. ing. The contact portion between the opening of the container body 11 and the fixed lid 13 is integrated by welding. A push button 14 is detachably attached to the stem of the valve 12. Further, the discharge container 10 is preferably provided with a cap 15 that is engaged with the outer periphery of the container body 11 as a protective member for the valve 12 and the push button 14.
The discharge container 10 is filled with a content composed of a stock solution and a pressurizing agent, and discharges the content to the outside by the pressure of the pressurizing agent.

As shown in FIG. 2a, the container body 11 is a synthetic resin in which a cup-shaped bottom portion 11a, a cylindrical body portion 11b, a dome-shaped shoulder portion 11c, and a cylindrical neck portion 11d are provided coaxially. This is a pressure-resistant container made by blow molding. The inner surface of the neck portion 11d forms an opening. A locking step portion 16 is formed on the inner surface of the upper end of the neck portion 11d so as to increase in diameter upward. The valve 12 shown in FIG. 2B is placed on the locking step 16.
The capacity of the container body 11 is preferably 30 to 1000 ml, particularly 50 to 500 ml. And the internal diameter of the opening part of the container main body 11 is 5-30 mm, 10-28 mm is especially preferable.

This container body 11 is molded by biaxial stretch blow molding in which a bottomed cylindrical parison made of synthetic resin such as polyethylene terephthalate, nylon, or polypropylene is injection molded, and air is blown into the interior while the parison is stretched in the axial direction. Has been. More specifically, the blow molding is to hold the neck portion and mouth portion (cylinder portion on the shoulder portion) of the cylindrical parison, and biaxially extend below the neck portion of the parison. Therefore, molecules below the shoulder portion 11c (blow forming portion) are arranged in a uniform manner, and are more elastic than the neck or mouth.
A cylindrical parison may be formed by direct blow molding. Furthermore, the container main body 11 may be provided with translucency. In that case, the remaining amount and state of the contents can be confirmed, which is preferable. Further, carbon or silica may be vapor-deposited on the inner surface and / or outer surface of the container body 11 in order to prevent permeation of the pressure agent.
Further, a shrink film may be attached to the outer periphery of the body portion of the container body 11.

  As shown in FIG. 2b, the aerosol valve 12 includes a cylindrical housing 21 that is placed in the opening of the container body 11, a stem 22 that is inserted into the housing 21 so as to be movable up and down, and a stem of the stem. It consists of a stem rubber 23 that closes the hole 22a. A dip tube 25 is attached to the lower end of the housing 21.

  The housing 21 has a cylindrical shape with a lower bottom 21a. A flange portion 21 b that protrudes outward in the radial direction is formed on the upper outer surface of the housing 21 in order to engage with the locking step portion 16 of the container body 11. On the upper inner surface of the housing 21, a support step portion 21 c that decreases in diameter downward is formed in order to lock the stem rubber 23. A communication hole 26 is formed in the center of the lower bottom 21a. The lower bottom 21a is provided with a spring plate 21d made of a synthetic resin extending upward. This spring plate 21d constantly biases the stem 22 upward. However, it may be deformed when the stem 22 is pushed down and biased upward. The housing 21 is formed by injection molding a synthetic resin such as polyacetal, nylon, polybutylene terephthalate. In this embodiment, the spring plate 21d is used, but a separate spring may be used. A cylindrical tube locking portion 21e that locks the dip tube 25 is provided at the lower end.

The stem 22 has a cylindrical shape having a lower bottom 22b. An annular recess 22c is formed on the lower side surface, and a stem hole 22a is provided at the center of the recess. The lower end of the stem 22 (the back of the lower bottom 22b) is a spring locking portion that receives the upper end of the spring plate 21d. The stem 22 is formed by injection molding a synthetic resin such as polyacetal, nylon, or polybutylene terephthalate.
The stem rubber 23 has a ring shape and is disposed in the recess 22 c of the stem 22. The stem rubber 23 is formed of rubber such as nitrile butadiene rubber, butyl rubber, styrene butadiene rubber, silicone rubber, fluorine rubber, or olefin elastomer.
Thus, the valve 12 is made of a non-metallic material made of synthetic resin or rubber. However, a metal spring such as a metal wire coil spring may be used as the spring 21d.

As shown in FIG. 2c, the fixed lid 13 has a ring shape having a center hole. As shown in FIG. 1, the fixed lid 13 is inserted into the opening (expanded diameter portion) of the container body 11 so as to overlap the flange portion 21 b of the housing. The outer diameter of the fixed lid 13 is preferably substantially the same as the inner diameter of the opening of the container body 11, and the outer periphery of the fixed lid 13 and the inner periphery of the opening of the container body 11 are in contact with each other. It has become. Further, at least a part of the annular contact portion between the fixed lid 13 and the container body 11 (above the contact portion) is welded. Preferably, as shown by the arrow in FIG. In addition, since the annular contact portion is welded between the fixed lid 13 and the container main body 11, the discharge container 10 is sealed by the stem rubber 23.
The welding method is selected according to the material of the container main body 11 and the fixed lid 13 such as ultrasonic welding, thermal welding, and high-frequency welding. In particular, when the container body 11 and the fixed lid 13 are made of polyethylene terephthalate, ultrasonic welding is preferable.
The fixed lid 13 can be integrated with the container main body 11 and is preferably molded from the same synthetic resin as the container main body 11 in view of the strength of the welded portion. However, it is not particularly limited as long as it can be welded and integrated with the synthetic resin of the container body.

The push button 14 is a conventionally known product including a stem engaging portion 14a that engages with a stem 22 provided at a lower end, a discharge hole 14b provided on a side surface, and an internal passage 14c that connects them. The push button 14 is also preferably made of synthetic resin.
The cap 15 includes a cylindrical attachment portion 15a and a cylindrical protection portion 15b having a diameter smaller than that of the attachment portion 15a and provided at the upper end of the attachment portion 15a. The protection part 15b has a top surface. Such a cap 15 is formed by injection molding or vacuum molding of synthetic resin. In particular, it is preferable to use vacuum forming because the thickness of the cap can be reduced and the amount of resin can be reduced. For the purpose of strengthening the protection part 15b, a rib or the like (not shown) that extends vertically may be provided on the side surface of the protection part 15b. Such a rib is preferably formed so as to be within a circumscribed circle having the same diameter as the mounting portion 15a in the plan sectional view.

  Since it is configured in this manner, the stem hole 22a is opened by removing the cap 15, pressing the push button 14 downward, and moving the stem 22 downward. Then, the contents move from the container body 11 into the valve 12 and to the push button 14 and are discharged from the discharge hole 14b.

Thus, since the discharge container 10 is made of a synthetic resin material or rubber without using a metal material for all parts, it is easy to recycle and is environmentally friendly. Even when a metal coil is used as the spring 21d, the metal material can be minimized.
Since the fixed lid 13 is welded to the neck portion (opening portion) of the thicker container body thicker than the blow forming portion (shoulder portion, trunk portion, bottom portion), the environment or the like (for example, the temperature rises) changes. Even if the pressure in the discharge container 10 increases, the container body does not rupture because the blow forming part of the container body 11 from the shoulder part to the bottom part expands and deforms. In addition, it is preferable to make the thickness of the fixed lid 13 thicker than the blow forming part (shoulder part, trunk part, bottom part).
Furthermore, even if the pressure rises and the neck portion (opening) is deformed so as to expand with the expansion and deformation of the shoulder portion of the container body 11, the fixing lid 13 is welded, so that the valve 12 is loosely fixed. (For example, the locking step 16 is expanded and the housing 21 is inclined as shown in FIG. 3), the sealing performance of the valve 12 is lowered, and the internal gas can be safely discharged to the outside (the arrow in FIG. 3 indicates Gas exhaust passage). Therefore, it is possible to prevent the valve from coming off.
When the shrink film is attached to the outer periphery of the body portion of the container body 11, the expansion deformation of the shoulder portion is promoted more than the expansion deformation of the body portion, and the valve 12 is in a lower pressure state than the expansion deformation of the body portion. The sealing performance can be lowered, and the safety can be improved.

The discharge container 10 of FIG. 1 is welded after the opening of the container body 11 and the fixed lid 13 are brought into contact with each other by fitting, and these are physically connected as shown in FIGS. 1c and d. It may be welded with.
For example, the engagement structure of FIG. 1c is engaged with the engagement groove 11g formed slightly below the upper end of the opening of the container main body 11 and the engagement groove 11g at the substantially center of the side surface of the fixed lid 13. The formed engaging claw 13c is engaged. However, as long as the opening of the container body 11 and the fixed lid 13 are engaged with each other, the shapes thereof are not particularly limited.
The screw structure shown in FIG. 1d is obtained by screwing a female screw formed on the inner surface of the opening of the container body 11 and a male screw formed on the side surface of the fixed lid 13.
Thus, by fixing the opening of the container main body 11 and the fixed lid 13 after physically connecting them, it is possible to improve their adhesion. The connection between the opening of the container main body and the fixed lid by a physical structure can be used even when the opening of the container main body 11 and the fixed lid are bonded as will be described later.

The discharge containers 10a and 10b in FIGS. 4a and 4b are different from each other in the welded part between the container body 11 and the fixed lid 13.
In the discharge container 10a of FIG. 4a, the fixed lid 13 is composed of a coaxial plug portion 13a and a lid portion 13b. Specifically, it is composed of a plug portion 13 a that is inserted into the opening of the container body 11 and holds the housing and the stem rubber, and a lid portion 13 b that is disposed on the upper surface of the opening of the container body 11. And at least one part of the contact part of the fixed lid | cover 13 and the container main body 11 is welded. Preferably, the side portion of the contact portion is welded in an annular shape as indicated by an arrow.
In the discharge container 10b of FIG. 4B, the fixed lid 13 has a U-shaped side cross-section and covers the opening of the container body 11. And at least one part of the contact part of the fixed lid | cover 13 and the container main body 11 is welded. Preferably, as shown by an arrow, the lower part of the contact portion is welded in an annular shape.

The discharge container 30 in FIG. 5 includes an elastic valve 31. Specifically, the container body 11, the elastic valve 31, the fixed lid 32, and the push button 33 are configured. The container body 11 is substantially the same as the container body 11 of FIG.
The elastic valve 31 is formed of rubber and includes a thick and disc-shaped plug portion 31a, an attachment portion 31b provided on the outer periphery thereof, and an elastic portion 31c connecting them. In addition, a communication hole 31d is formed in the elastic portion 31c. The attachment part 31 b is a part for engaging with the locking step part 16 of the container body 11.
The fixed lid 32 is ring-shaped, and a support cylinder 32a is provided downward from the lower surface of the inner peripheral edge. The fixed lid 32 is inserted into the opening (expanded diameter portion) of the container body 11 so as to overlap the attachment portion 31b of the elastic valve 31, and is configured to close the support cylinder 32a with the plug portion 31a of the elastic valve. Yes. The outer periphery of the fixed lid 32 and the inner periphery of the opening of the container body 11 are in contact with each other. The contact portion is welded from above the container body. However, as shown in FIGS. 4a and 4b, the welding site can be selected as appropriate.
The push button 33 includes a push portion 34 having a rectangular side section and a cylindrical stem portion 35 extending downward from the lower end thereof, and is detachable from the fixed lid 32. A discharge hole 34 a is formed on the side surface of the pressing portion 34. A stem hole 35 a is formed on the lower side surface of the stem portion 35. Instead of the stem hole 35a, a slit extending upward from the lower end may be provided. The discharge hole 34a and the stem hole 35a or the slit communicate with each other through an internal passage.

  Since it is configured in this way, the lower end of the stem portion 35 of the push button 33 is brought into contact with the plug portion 31a of the elastic valve, and the push button 33 is pushed to the bottom side while the discharge container 30 is inverted, The elastic part 31 c extends, and a gap is formed between the support cylinder 32 a of the fixed lid 32 and the elastic valve 31. As a result, the contents are supplied from the communicating hole 31d of the elastic valve to the stem hole 35a and discharged from the discharge hole 34a.

The discharge container 30 is also made of a synthetic resin material or rubber without using a metal material for all parts, and thus is easy to recycle and is environmentally friendly.
In addition, since the fixed lid 32 is also welded to the neck (opening) of the thicker container body thicker than the blow forming part (shoulder, trunk, bottom), the environment and the like (for example, the temperature rises) changes. Even if the pressure in the discharge container 30 increases, the container body does not burst. Furthermore, even if the pressure rises and the neck portion (opening) is deformed so that the shoulder portion of the container main body 11 expands and deforms, the fixed lid 32 is welded. The holding portion 31b sandwiched between the step portions 16 is loosened, the seal between the elastic valve 31 and the support cylinder 32a of the fixed lid 32 is loosened, the communication hole 31d and the support cylinder 32a communicate with each other, and the internal gas is safe to the outside. Can be released. Therefore, it is possible to prevent the valve from coming off.

  The discharge container 40 of FIG. 6a is a container body and a fixed lid fixed by adhesion. Specifically, the container body 11, the valve 41, the fixed lid 42, and the push button 14 are included. The container body 11 and the push button 14 are substantially the same as those in FIG.

  The valve 41 includes a housing 21 and a tilting stem 44. The housing 21 is substantially the same as the housing 21 of FIG. 2b and includes a spring plate. The stem 44 has a cylindrical shape having a lower bottom 44a, and an annular blade 44b extending obliquely upward is formed on a side surface. A stem hole 44c is formed at the base of the blade 44b. The blade 44b is configured such that its upper end contacts the lower surface of the fixed lid 42 and seals. Therefore, by slightly tilting the stem 44, the seal between the blade 44b and the fixed lid 42 is loosened, and the content is sent from the stem hole 44c to the discharge hole 14b. In this way, the stem rubber is omitted. The tilting stem 44 may be the stem rubber of the discharge container 10 of FIG. Further, as in the stem of FIG. 1, a valve that seals the stem hole with a stem rubber and releases the stem hole by pressing down may be used.

As shown in FIG. 6b, the fixed lid 42 includes a cylindrical lid body 42a and an annular flange 42b provided on the outer periphery of the lower end thereof. Note that a sealing film 42c (imaginary line) made of an elastomer made of synthetic resin or the like may be provided on the lower surface in order to improve the sealing performance with the above-described blade 44c. Such a sealing film 42 may be provided after the fixed lid 42 is molded, or may be molded simultaneously by two types of molding. Further, the fixed lid may be formed of an elastic material such as silicone rubber or urethane resin.
The annular flange 42b of the fixed lid is disposed on the locking step 16 of the container body. That is, a gap S is formed between the opening of the container body 11 and the lid body 42a. An adhesive is poured into the gap S to adhere the fixed lid 42 to the container body 11.

In this embodiment, as shown in FIGS. 6a and 6c, the annular flange 42b of the fixed lid 42 and the flange portion 21b of the housing 21 of the valve 41 are provided with a plurality of notches 45a and longitudinal grooves 45b extending in the vertical direction. ing. Thus, by providing the notch 45a and the vertical groove 45b, an adhesive agent can be poured further deeply and the adhesive force of an up-down direction can be strengthened. Furthermore, the notch 45a and the vertical groove 45b may be provided in a biased manner. By providing a bias (for example, only one), when the inside of the discharge container 40 is pressurized, the valve 41 can be inductively tilted in one direction, and the internal gas can be discharged more safely. Can do. However, the notch and the longitudinal groove may not be provided as long as sufficient adhesion is obtained.
The adhesive is appropriately selected according to the material of the container body 11 and the fixed lid. In particular, polyester-based, polyolefin-based, polyamide-based, polyurethane-based, ethylene-vinyl acetate-based hot-melt adhesives and the like can be mentioned, and polyester-based and polyolefin-based hot-melt adhesives are preferably used.

Since all the parts of the discharge container 40 are made of a synthetic resin material, it is easy to recycle and is environmentally friendly.
Further, since the fixed lid 42 is bonded to the neck (opening) of the container main body having a thicker thickness than the blow forming portion (shoulder, trunk, bottom), the environment or the like (for example, the temperature rises) changes. Even if the pressure in the discharge container 40 increases, the container body does not burst. Furthermore, even if the pressure rises and the neck portion (opening) is deformed so that the shoulder portion of the container body 11 expands and deforms, the sealing performance of the valve 41 is effectively reduced, and the internal gas is discharged to the outside. Can be released safely.

The discharge container 50 in FIG. 7 is a double-type discharge container that separately stores a stock solution and a pressurizing agent and discharges only the stock solution. Specifically, the container body 51 includes an inner bag 52 accommodated therein, an elastic valve 31 fixed to the opening of the container body 51, a fixed lid 32, and a push button 33. The elastic valve 31, the fixed lid 32, and the push button 33 are substantially the same as those in FIG.
In the discharge container 50, the stock solution is filled between the container body 51 and the inner bag 52, and the inner bag 52 is filled with a pressurizing agent. In the discharge container 50, the inner bag 52 is inflated by the pressure of the pressurizing agent by operating the elastic valve 31, and the stock solution is pressurized and discharged to the outside.

  The container main body 51 is formed with a support step 51 a that supports an inner bag, which will be described later, below the locking step 16 of the container main body 51. A vertical groove 51b extending from the locking step 16 to the support step 51a is formed. Other configurations are substantially the same as those of the container body 11 of FIG.

The inner bag 52 includes a bottom portion 52a, a cylindrical body portion 52b, a dome-shaped shoulder portion 52c, a cylindrical neck portion 52d, and a flange portion 52e provided at the upper end thereof, and is made of synthetic resin or rubber. An inflatable container. A notch 52f is formed on a part of the outer periphery of the flange portion 52e, and a lateral groove 52g is formed on the lower surface of the flange portion 52e so as to communicate therewith.
The flange portion 52e of the inner bag 52 is supported by the support step portion 51a of the container body. At this time, the notch 52f of the flange portion 52e and the vertical groove 51b of the container body are configured to communicate with each other.
The opening portion of the inner bag 52 is sealed by the plug portion 31a of the elastic valve 31.

  When such an inner bag 52 is made of a synthetic resin, it can be blow-molded together with the container body 51 and molded. Specifically, the inner preform for the inner bag 52 is accommodated in the outer preform for the container body 51, the outer preform containing the inner preform is accommodated in the mold for the container body, and heated. The container body 51 is formed by blowing the outer preform in the mold, and at the same time, the inner preform is blown in the container body to form the inner bag. By forming in this way, the inner bag 52 and the inside shape of the container body are similar, and when the inner bag 52 is inflated, the space between the container body 51 and the inner bag 52 can be efficiently compressed. And the contents can be discharged efficiently. However, the container body 51 and the inner bag 52 may be molded separately, and the inner bag 52 may be inserted into the container body 51 after the molding.

  Since the lower end of the stem portion 35b of the push button 33 is brought into contact with the plug portion 31a of the elastic valve and the plug portion 31a is pressed downward, the elastic portion 31c extends and the fixed lid 32 is thus configured. A gap is formed between the support cylinder 32 a and the elastic valve 31. As a result, the stock solution between the container main body 51 and the inner bag 52 passes through the inner groove 52g, the inner bag notch 52f, the vertical groove 51b of the container main body, and further the communication valve 31d of the elastic valve of the elastic valve. Then, it moves to the stem hole 35a of the stem portion 35b and is discharged from the discharge hole 34a.

The discharge container 50 is also made of a synthetic resin material or rubber without using a metal material for all parts, and thus is easy to recycle and is environmentally friendly. Moreover, like the discharge container 30 of FIG.
Since the fixed lid 32 is welded to the container body 51, it is safe even if the environment or the like (for example, the temperature rises) changes.

  The discharge container 60 in FIG. 8 a has a container body 61 made of synthetic resin, a valve 12 disposed at the mouth thereof, and a fixed lid 13 that fixes the valve to the container body 61. Further, a discharge member 62 for performing a discharge operation of the discharge container 60 is attached to the discharge container 60. This discharge container 60 also has an effect similar to that of the discharge container of FIG. 1 because the contact portion between the opening of the container body 61 and the fixed lid 13 is integrated by welding. And this discharge container 60 is filled with the content which consists of undiluted | stock solution and a pressurizing agent, and discharges a content outside with the pressure of a pressurizing agent. The valve 12 is substantially the same as the valve 12 of FIG. Similarly to the fixed lid 13 of FIG. 4a, the fixed lid 13 includes a coaxial plug portion 13a and a lid portion 13b. The fixing lid 13 is fixed to the container main body 61 by welding the side portion of the contact portion between the fixing lid 13 and the container main body 61 in an annular shape.

  As in the case of the container body 11 of FIG. 1, the container body 61 is provided with a cup-shaped bottom, a cylindrical body, a dome-shaped shoulder, and a cylindrical neck on the same axis, and a neck 61a. A cylindrical mouth portion 61b is provided at the upper end of the. The mouth portion 61b shares the inner surface with the neck portion 61a, and the outer surface protrudes radially outward from the neck portion 61a. Therefore, a step portion is formed between the outer surface of the mouth portion 61a and the outer surface of the neck portion 61b. The inner surfaces of the neck portion 61a and the mouth portion 61b constitute an opening. And the latching step part 61c is formed in the upper end inner surface of the opening part 61b so that it may expand diameter upwards. The valve 12 is placed on the locking step 61c. Similar to the container body 11 of FIG. 1, such a container body 61 is formed from a synthetic resin into a bottomed cylindrical parison, and the parison is formed by biaxial stretch blow molding.

The discharge member 62 has a cylindrical mounting portion 66 and a columnar button portion 67 provided coaxially. In the discharge member 62, the mounting portion 66 and the button portion 67 are connected by a cut line 66c as will be described later. Therefore, the user tears off the cut line 66c between the button part 67 and the mounting part 66, removes the mounting part 66, and uses the button part 67 in a state in which the button part 67 can move up and down with respect to the container body 61. Is. Since such a discharge member 62 connects the mounting portion 66 and the button portion 67, the discharge member 62 is integrally formed by injection molding using a synthetic resin.
Specifically, at the lower end of the mounting portion 66, four engaging claws 66a extending downward and projecting radially inward at the lower end are provided at equal intervals. However, the number is not particularly limited, and may be provided in a ring shape. In the case where the ring is provided in an annular shape, a later-described weakening line is also provided on the engaging claw. The engaging claw 66 a engages with a step portion between the neck portion 61 a and the mouth portion 61 b of the container main body 61, and the mounting portion 66 of the discharge member 62 is fixed to the container main body 61. Since the mounting portion 66 is fixed to the container body 61 and the button portion 67 is fixed to the mounting portion 66 by the cut line 66c, the discharge member is operated to push down the discharge member (button portion 67). I can't. In other words, the discharge member does not allow the button 67 to be pushed down (discharge operation) unless an operation of breaking the cut line 66c (opening the button portion 67 so as to be movable up and down with respect to the container body 61) is performed. It is configured and serves as a so-called cap. The engaging claw 66a is eliminated, the lower end of the mounting portion 66 is brought into contact with the shoulder portion of the container body, the mounting portion 66 is fixed to the container body 61, and the discharge member 62 (button portion 67) cannot be pushed down. You may do it. A flange portion 66b extending radially inward is formed at the upper end of the mounting portion 66. The inner edge of the flange portion 66b and the lower end of the button portion 67 are connected by a cut line 66c.
Further, a weakening line 71 (see FIG. 8b) extending vertically is formed in the mounting portion 66, and an operation projection 72 is provided on the outer periphery in the vicinity of the weakening line 71 (parallel to the weakening line 71). Is formed. In other words, the weakening line 71 can be broken by picking the operating projection 72 and applying an external force to the mounting portion 66 so as to spread in the direction opposite to the weakening line 71 (in a direction away from the weakening line 71). Has been. Thereby, the mounting part 66 can be easily detached from the container main body 61. In this embodiment, the operation protrusion 72 includes a protrusion 72 a that protrudes from the outer peripheral surface of the mounting portion 66, and a lever portion 72 b that extends parallel to the outer periphery of the mounting portion 66 in the direction of the weakening line from the tip thereof and crosses the weakening line 71. And a knob portion 72c extending radially outward from the tip of the lever portion 72b. Thereby, the weakening line 71 can be more easily broken by the lever principle by pulling the lever portion 72b in the direction of the protrusion 72a by picking the knob portion 72c. By this operation, separation of the mounting portion 66 from the container body 61 and separation from the button portion 67 of the mounting portion 66 can be performed simultaneously.
In addition, as shown in FIG. 8 c, the operation protrusion 72 may be just protruded from the outer surface of the mounting portion. In this case, it is preferable that the operation protrusion 72 is provided on the outer surface of the engaging claw 66a for ease of pinching. In addition, it is preferable that the weakening line 71 and the upper and lower sides of the end of the engaging claw 66a are substantially collinear.
Further, as shown in FIG. 8d, the operation protrusion 72 may not be provided on the outer surface of the mounting member 66, and the side of the engaging claw 66a may be directly picked so that the weakening line 71 can be broken (see FIG. 8d). Also in this case, it is preferable that the weakening line 71 and the upper and lower sides of the end of the engaging claw 66a are configured to be substantially the same straight line.

The button portion 67 includes a stem engaging portion 67a that engages with the stem of the valve 12, an opening hole 67b, and an internal passage 67c that connects them. The nozzle hole 68 is inserted into the opening hole 67b to become a discharge hole. By selecting a predetermined nozzle tip 68, the contents can be discharged in an arbitrary state.
The discharge member 62 can be used for an aerosol container or a pump container as long as it is a discharge container that pushes down the stem to discharge the contents.

Since the discharge container 60 is made of a synthetic resin material or rubber without using a metal material for all parts, like the discharge container of FIG. 1, it is easy to recycle and is environmentally friendly.
Since the fixed lid 13 is welded to the opening of the thick container body thicker than the blow forming part (shoulder part, trunk part, bottom part), the environment etc. (for example, the temperature rises) changes and the discharge container 60 changes. Even if the internal pressure increases, the blow forming portion of the container main body 11 from the shoulder portion to the bottom portion expands and deforms, so that the container main body does not burst.
Furthermore, the fixed lid 13 is welded even if the surrounding temperature and the pressure in the container rise, and the neck (opening) or the like is deformed to expand as the shoulder of the container body 61 expands and deforms. The sealing performance of the valve 12 can be lowered, the internal gas can be safely discharged to the outside, and the valve can be prevented from being pulled out. Note that a shrink film can be attached to the outer periphery of the body portion of the container body 61 to restrict deformation of the body portion, and the shoulder portion can be easily expanded and deformed.

8e and f show another discharge member 75 that can be attached to the discharge container 60 of FIG. 8a. The discharge member 75 includes a cylindrical mounting portion 76, a columnar button portion 77, and a cap portion 78 that covers the button portion 77 and can be detachably attached to the mounting portion 76. . Further, the discharge member 75 includes an inner hinge portion 79 a that connects the mounting portion 76 and the button portion 76, and an outer hinge portion 79 b that connects the mounting portion 76 and the cap portion 78. That is, it is integrally molded from synthetic resin by injection molding or the like. Moreover, the broken line of FIG. 8f shows the push-down operation | movement of the button part 77, and the attachment / detachment operation | movement of the cap part 78, respectively.
The mounting portion 76 has a cylindrical shape, and an annular engagement protrusion 76a protruding radially inward is formed at the lower end, and a cap mounting portion 76b having a reduced diameter is formed at the upper end. The engagement protrusion 76 a is engaged with a step portion between the neck portion 61 a and the mouth portion 61 b of the container main body 61. However, the engagement protrusion 76a may be provided with a plurality of engagement protrusions in an annular shape. The cap attachment portion 76b is a portion that receives the cap portion 78. Further, an annular protrusion or the like that protrudes outward in the radial direction may be provided on the outer periphery of the cap attachment portion 76b to ensure engagement with the inner surface of the cap portion 78.
The mounting portion 76 is used while being mounted on the container main body 61. This is different from the mounting portion 66 of FIG.
The button portion 77 is substantially the same as the button portion 67 in FIG. 8B except that a part of the upper end inner surface of the cap attachment portion 76b of the mounting portion 76 is connected to the inner hinge portion 79a. The inner hinge portion 79 a is provided at a portion having an angle of 90 degrees with respect to the discharge hole of the button portion 77. However, there is no particular limitation.
The cap 78 has a cylindrical shape with a top surface, and is connected to a part of the upper end of the mounting portion 76 by an outer hinge portion 79b. The outer hinge portion 79 b is provided at a portion having an angle of 90 degrees with respect to the discharge hole of the button portion 77. However, there is no particular limitation.

10, 10a, 10b Discharge container 11 Container body 11a Bottom part 11b Body part 11c Shoulder part 11d Neck part 11g Engaging groove 12 Aerosol valve (valve)
DESCRIPTION OF SYMBOLS 13 Fixed lid 13a Plug part 13b Cover part 13c Engagement claw 14 Push button 14a Stem engagement part 14b Discharge hole 14c Internal passage 15 Cap 15a Attachment part 15b Protection part 16 Locking step part 21 Housing 21a Lower bottom 21b Flange part 21c Support Step portion 21d Spring plate 21e Tube locking portion 22 Stem 22a Stem hole 22b Lower bottom 22c Recessed portion
23 Stem rubber 25 Dip tube 26 Communication hole 30 Discharge container 31 Elastic valve 31a Plug part 31b Mounting part 31c Elastic part 31d Communication hole 32 Fixed lid 32a Support cylinder 33 Push button 34 Push part 34a Discharge hole 35 Stem hole 35a Stem hole 40 Discharge Container 41 Valve 42 Fixed lid 42a Lid main body 42b Annular flange 42c Seal membrane 44 Tilt-type stem 44a Lower bottom 44b Blade 44c Stem hole 45a Notch 45b Vertical groove 50 Discharge container 51 Container body 51a Support step 51b Vertical groove 52a Inner bag 52a Bottom portion 52b Body portion 52c Shoulder portion 52d Neck portion 52e Flange portion 52f Notch 52g Horizontal groove 60 Discharge container 61 Container body 61a Neck portion 61b Mouth portion 61c Locking step portion 62 Discharge member 66 Mounting portion 66a Engaging claw 66b Flange portion 66c 67 Button part 67a Stem engagement part 67b Opening hole 67c Internal passage 68 Nozzle tip 71 Weak line 72 Operation protrusion 72a Projection part 72b Lever part 72c Knob part 75 Discharge member 76 Mounting member 76a Engagement protrusion 76b Cap attachment part 77 Button part 78 Cap portion 79a Inner hinge portion 79b Outer hinge portion

Claims (3)

A synthetic resin container body molded by blow molding;
A valve for opening and closing a passage between the inside and outside of the container body;
A synthetic resin fixing member for fixing the valve to the container body,
A locking step portion is provided on the inner surface of the neck portion of the container body, the outer peripheral portion of the valve is engaged with the locking step portion, and a fixing member is placed on the upper portion thereof, and the opening portion and the fixing member of the container body are provided. and securing the valve to the container body by a soluble Chakusu Rukoto, dispensing container. The valve includes a housing formed with a flange portion that engages with a locking step portion of the container body, a stem that is inserted into the housing so as to be movable up and down, and a stem rubber that closes a stem hole of the stem. ,
The discharge container according to claim 1, wherein the fixing member is inserted so as to overlap the flange portion of the housing. The valve includes a housing formed with a flange portion that engages with a locking step portion of the container body, a stem that is inserted into the housing so as to be movable up and down, and a stem rubber that closes a stem hole of the stem. ,
The discharge container according to claim 1, wherein the fixing member includes a plug portion that holds the housing and the stem rubber, and a lid portion that is disposed on an upper surface of the opening of the container body.