JP5070035B2 - Liquid supply container - Google Patents

Description

  The present invention relates to a liquid supply container for refilling or replacement, in which a liquid container is filled and accommodated in a molded plastic synthetic resin container body, and a filling port portion is sealed and sealed. is there.

  A synthetic resin container obtained by molding the container body by, for example, blow molding or the like, is formed inside the container body in a state where a cap or the like is screwed to the mouth portion protruding from the upper end portion of the body portion of the container body. Generally, the contents filled in are sealed and used for display or sales (see, for example, Patent Document 1).

On the other hand, for example, as a synthetic resin container used for refilling contents, a self-standing bag that does not require a cap or the like for opening and closing the spout is provided, and includes a bottom portion and a trunk portion provided with a spout formation portion, and the bottom portion is mounted. 2. Description of the Related Art Self-supporting bags that are self-supporting by being placed on a placement surface as a placement surface are known. In such a self-supporting bag, the sealed contents are poured out from a spout formed by cutting a spout forming portion with a knife, scissors or the like. In addition, the spout forming part is provided with an annular easily breakable part by, for example, a narrow groove-shaped recessed part, and the easily breakable part is broken by tearing or tearing, so that the spout can be formed without using a tool such as scissors. A resin container is also disclosed (for example, see Patent Document 2).
JP 2001-315742 A JP 2004-59141 A

  In a synthetic resin container such as a self-supporting bag that cuts or breaks the spout forming part to form a spout, for example, when used as a container for refilling, it may not be possible to transfer all of the contents at once. It is desirable that a cap or the like separately prepared at the spout forming portion can be detachably screwed so that the remaining contents can be sealed again and stored. In addition, a cap part of a liquid discharger such as a pump device or a trigger device can be attached to the spout forming part of the synthetic resin container after forming such a spout, for example, used as a replacement container. It is desirable to be able to do it.

  However, for example, even if a male screw is provided on the outer peripheral surface of the spout forming portion and a female screw provided on the inner peripheral surface of a cap or the like is screwed, it is difficult to seal the contents inside the container body. There is a risk of spilling out of the container body. In other words, the spout formed in the spout forming portion by cutting or breaking the easily breakable portion has a different shape depending on how the opening is perforated. For example, the inner ring provided inside the cap or the like cannot be brought into close contact with the spout, and it is difficult to ensure sufficient sealing performance. .

  The present invention is used as a sealed container for refilling or replacement, and the cap is formed after cutting or breaking the spout forming part to form the spout while securing the sealing property of the filled and contained contents. It is possible to provide a liquid supply container capable of screwing a member and sufficiently securing the sealing performance by the screwed cap member and capable of sealing the contents inside the container body again. Objective.

  The present invention provides a container body made of a synthetic resin which is molded and has a body part and a bottom part, and has a filling port part and a spout forming part protruding therefrom, and the container body is filled with a storage liquid, A container for supplying a liquid agent that is sealed and sealed so that the contained liquid can be poured out by forming a spout by cutting or breaking the easily breakable portion provided in the spout forming section; A cap member can be screwed to a male screw provided on the outer peripheral surface of the base end portion which is on the barrel side of the easily breakable portion of the outlet forming portion, and the male screw is provided on the base end portion. An abutting step portion that is annularly continuous in the circumferential direction of the base end portion is provided closer to the easily breakable portion side than the male screw forming region, and a contacting contact portion provided inside the cap member is provided at the corresponding contacting step portion. The object is achieved by providing a liquid supply container that abuts.

  According to the liquid supply container of the present invention, it is used as a sealed container for refilling or replacement, and the spout forming part is cut or broken while ensuring the sealed housing state of the filled contents. After the spout has been formed, the cap member can be screwed together, and the content can be resealed inside the container body with sufficient sealing performance by the screwed cap member.

  A liquid supply container 10 according to a preferred embodiment of the present invention shown in FIGS. 1 (a) and 1 (b) is made of synthetic resin, and is formed as a self-standing bag by, for example, blow molding. It is. In addition, the liquid supply container (self-supporting bag) 10 of the present embodiment includes, for example, liquid cosmetics, liquid detergents, cleaning agents, and the like as the contents filled from the filling port 24 and then fused to the filling port 24. It is sealed by sealing etc. to be in a sealed state and used for display and sales. The self-standing bag 10 of the present embodiment is used as a refilling container in which the cap member 14 is attached to the spout forming portion 13 after the spout forming portion 13 is cut or broken to form a spout at the time of use, or a pump device. By attaching the cap member 14 of the liquid ejector 12 such as detachable, it can be used as a replacement container (see FIGS. 4A and 4B).

  And the self-supporting bag 10 of this embodiment forms the bottom part 16 and the trunk | drum 17 by mold-molding the bag main body (container main body) 11, and is the spout formation part which protruded from the filling port part 24 and the trunk | drum 17. 13 is integrally formed. The self-supporting bag 10 has a spout (pour opening) formed by cutting or breaking the easily breakable portion 18 of the spout forming portion 13 to remove the planned cutting portion 19 in the tip region from the easily breakable portion 18. This is a liquid supply container that is used by screwing the cap member 14 of the liquid ejector 12 in which the female screw 20 is provided in the spout forming portion 13 after the spout is formed (see FIGS. 4A and 4B). ). As shown in FIGS. 2 and 3, the spout forming portion 13 is easier than the male screw forming region 22 </ b> A in which the male screw 21 is provided at the base end portion 22 on the trunk portion 17 side of the easily breakable portion 18. A contact step portion 25 that protrudes outward from the outer peripheral surface of the base end portion 22 on the side of the break portion 18 and continues in an annular shape in the circumferential direction of the base end portion 22 is provided. An abutting contact portion 26 provided inside is abutted (see FIGS. 4A and 4B). The proximal end portion 22 includes a proximal end distal end side region 22B on the side of the easily breakable portion 18 (after being cut or broken) after the contact stepped portion 25, and is reduced in diameter from the male screw forming region 22A. The abutting step portion 25 is preferably an annular flat surface provided inward from the outer peripheral surface of the male screw forming region 22A of the base end portion 22, and the abutting step portion 25 is It can also be provided in a flange shape in a region closer to the easily breakable portion 18 than the male screw forming region 22A of the base end portion 22.

  In the present embodiment, the synthetic resin bag main body 11 is preferably formed by blow molding into a shape composed of a bottom portion 16 and a trunk portion 17, and the bag main body 11 protrudes from the filling port portion 24 and the trunk portion 17. The spout forming portion 13 is formed. As the blow molding, various known molding methods such as direct blow molding and injection blow molding can be employed.

  As a synthetic resin material for molding the bag body 11, soft synthetic resin materials such as polyolefin resins such as LDPE (low density polyethylene), L-LDPE (linear low density polyethylene), and OPP (stretched polypropylene) Alternatively, polyester resins such as PET (polyethylene terephthalate) can be used as a single layer. A laminated resin of these synthetic resins and other synthetic resins can also be employed. For example, a laminated resin in which LDPE or L-LDPE is used as the inner layer and the outer layer is used as HDPE can be employed. Also, EVOH resin (ethylene vinyl alcohol copolymer resin), EVA resin (ethylene vinyl acetate copolymer resin), resin laminated with nylon resin, etc., and resin such as EVA, EVOH, nylon, etc. with resin such as PE (polyethylene) A blended resin can also be employed.

  And in this embodiment, the bag main body 11 has the trunk | drum 17 the side edge of the front part 17A and the back part 17B via the parting line 27 of a metal mold | die by blow molding using the above-mentioned synthetic resin material. And a flat trunk portion 17 having a hollow cross-sectional shape of a rectangle or rhombus (or bowl shape) with a rounded corner shape or a rhombus shape. The trunk portion 17 has a lower end edge continuous with the bottom portion 16, and an upper portion thereof having a diameter reduced as a shoulder portion 28, and a shape in which the spout forming portion 13 is protruded upward from the central portion of the shoulder portion 28 as a neck portion. It has. Further, the bottom portion 16 is formed so as to protrude outward during blow molding, and in this embodiment, the filling port portion 24 is formed in a substantially central region of the bottom portion 16. The bag body 11 of the present embodiment is filled and accommodated with the contents from the filling port part 24, and after filling, the bag body 11 in which the contents are sealed and accommodated by sandwiching and filling the filling port part 24 with a seal bar. can get. Further, the bottom portion 16 protruding from the bag body 11 is pushed into the body portion 17 so as to be reversed, and a boundary line between the bottom portion 16 and the body portion 17 becomes a placement portion for the placement surface.

  Here, it is preferable that the trunk | drum 17 and the bottom part 16 of the synthetic resin bag main body 11 are shape | molded by the thickness of 100 micrometers or more so that the stable self-supporting property can be ensured. In addition, it has moderate flexibility and can be folded, bent or crushed to have a flat shape, for example, a thickness of 700 μm or less, and more preferably a thickness of 500 μm or less. It is preferable to be molded.

  In the present embodiment, the spout forming portion 13 that protrudes upward from the central portion of the shoulder portion 28 of the trunk portion 17 has its central axis directed in a direction perpendicular to the placement surface P <b> 3 including the peripheral portion of the bottom portion 16. Is provided. The spout forming portion 13 includes a base end portion 22 that is continuous with the shoulder portion 28, an easily breakable portion 18, and a planned cutting portion 19. The base end portion 22 has a cylindrical shape, and on the outer peripheral surface thereof, male thread ridges constituting the male thread 21 are protrusively provided during molding. Further, the base end portion tip end region 22B on the side of the easily breakable portion 18 with respect to the male screw forming region 22A of the base end portion 22 is a portion where the tip opening becomes a spout when the easily breakable portion 18 is cut or broken. The proximal end distal end region 22B preferably has a dome shape together with the planned cutting portion 19 in a state before the easily breakable portion 18 is cut or broken, or, for example, a hollow approximately tapered gradually toward the distal end. It has a truncated cone shape.

  Further, in the present embodiment, an easily breakable portion 18 made of, for example, a narrow groove-like recess is formed on the outer peripheral surface of the boundary portion between the base end portion distal end region 22B and the planned cutting portion 19 so as to surround the ring. ing. By the easily breakable portion 18, the spout forming portion 13 is divided into a base end portion 22 below (toward the body portion 17) and a cut-out planned portion 19 above (distal region). Then, by cutting or breaking the easily breakable portion 18, the excision scheduled portion 19 at the distal end region is removed from the easily breakable portion 18 to form a spout (pour opening), and the self-standing bag 10 can be opened from the sealed state. It is like that.

  Here, the easily breakable portion 18 of the present embodiment is formed by a narrow groove-like recess recessed in a narrow shape extending annularly in the circumferential direction of the spout forming portion 13, for example, a narrow V-shaped cross-sectional shape. A groove is formed extending in the circumferential direction of the spout forming portion 13. The deepest part of the narrow groove-shaped recess or the tangential part where the two surfaces forming the groove intersect is preferably thin so that it can be easily broken.

  In the present embodiment, the easily breakable portion 18 is formed along the surface P2 inclined with respect to the surface P1 provided with the contact step portion 25, and the surface P1 provided with the contact step portion 25. The inclination angle θ of the inclined surface P2 is preferably 5 to 45 °, for example. Accordingly, when the user performs an operation of breaking the easily breakable portion 18 to form the spout, the stress applied for the breakage is easily concentrated on a part of the easily breakable portion 18. Can be broken more smoothly.

  Further, in the present embodiment, a knob piece 30 is provided as a knob portion on the planned cutting portion 19 of the spout forming portion 13. The knob piece 30 is a substantially semi-circular plate-like portion, and is integrally formed only continuously with the planned cutting portion 19 of the spout forming portion 13, and is not continuous with the proximal end portion 22 but is close to it. It extends over the rupture portion 18 to the outside of the outer peripheral surface of the base end portion 22. Further, the knob piece 30 is provided on the extension of the parting line 27 of the body portion 17 along the parting line 27 of the mold. In the present embodiment, the surface P2 that is inclined with respect to the surface P1 provided with the contact step portion 25 is inclined at an inclination angle θ in the direction along the parting line 27. Therefore, the knob piece 30 is mounted in the vicinity of the highest position of the easily breakable portion 18 by being arranged and standing on the upper side of the easily breakable portion 18 in the plane along the parting line 27. become.

  In this embodiment, an anti-slip ridge portion 31 is provided on the peripheral portion of the knob piece 30 to facilitate the operation of grasping the knob piece 30 with fingers and opening the spout forming portion 13. ing. In addition, the gripping property of the knob piece 30 can be further improved by forming an uneven surface or a rough surface by embossing or the like on the inner side of the peripheral portion of the knob piece 30. The user can be guided to operate the knob piece 30 in a direction in which the easily breakable portion 18 is easily broken by providing the knob piece 30 with an arrow 32 or the like that clearly indicates the operation direction thereof.

  And in this embodiment, in the base end part 22 of the spout formation part 13, it contact | abuts cyclically | annularly in the circumferential direction of the base end part 22 between the male screw formation area | region 22A and the base end part front end area | region 22B. A step portion 25 is provided. In this embodiment, the contact step portion 25 is a ring-shaped flat surface 33 interposed between the distal outer peripheral edge portion 23a of the male screw forming region 22A and the proximal outer peripheral edge portion 23b of the proximal end distal end region 22B. (See FIG. 3). When the cap step 14 is screwed to the base end portion 22 of the spout forming portion 13 after the splicing portion 18 is cut or broken to form the spout portion 25 in the contact step portion 25. The abutting contact portion 26 provided on the inner side of the cap member 14 abuts in a pressure contact state to exert a sealing function, and secures a strong sealing property between the spout forming portion 13 and the cap member 14. It can be done.

  Here, as shown in FIGS. 4A and 4B, the liquid discharger 12 includes a discharger body 15 having a nozzle head 15 a and the like and a cap member 14, and is formed on the inner peripheral surface of the cap member 14. It is detachably mounted on the spout forming portion 13 of the self-standing bag 10 by being screwed to the base end portion 22 provided with the male screw 21 via the provided female screw 20. On the inner side of the cap member 14, for example, a contact inner ring 34 (see FIG. 4A) provided in an annular shape and a contact angle rib 35 (see FIG. 4B) provided in an annular shape are provided. Projecting downward from the top surface 36. When the cap member 14 is screwed to the base end portion 22 of the spout forming portion 13 with the lower end surface of the abutting inner ring 34 or the abutting angle rib 35 as the abutting close contact portion 26, The contact step 25 is pressed against the contact step 25.

  And according to the self-supporting bag 10 of the present embodiment having the above-described configuration, the cap member 14 of the liquid ejector 12 is formed after the easily breakable portion 18 of the spout forming portion 13 is cut or broken to form the spout. In addition to being able to be screwed, the sealing performance by the screwed cap member 14 is sufficiently secured, and the contents can be easily enclosed in the bag body 11.

  That is, according to the present embodiment, the spout forming portion 13 includes a base end portion 22 provided with a male screw 21 on the outer peripheral surface, an easily breakable portion 18 provided on the front end side of the base end portion 22, and The proximal end portion 22 is formed between the male screw forming region 22A and the proximal end distal end region 22B on the distal end side from the male screw forming region 22A. An abutting step portion 25 is provided continuously in an annular shape in the direction. Therefore, after the easily breakable portion 18 is broken to form the spout, the cap member 14 is screwed onto the base end portion 22 having the male screw 21 provided on the outer peripheral surface, and the liquid ejector 12 is attached to the self-supporting bag 10. It can be easily mounted.

  Further, the contact step part 25 provided on the inner side of the cap member 14 is brought into contact with the contact step part 25 formed on the base end part 22, whereby the contact step part 25 and the contact contact part 26 are brought into contact with each other. It becomes possible to ensure a strong sealing property by the pressure contact state. Therefore, for example, the cut surface or the fracture surface of the opening peripheral edge portion of the spout formed by cutting or breaking the easily breakable portion 18 is formed in an irregular uneven shape or inclined, for example, Even when the inner ring provided on the inner side of the cap member 14 cannot be sufficiently brought into close contact with the opening peripheral edge portion of the spout, a strong sealing property is secured between the contact step portion 25 and the contact contact portion 26. As a result, the contents can be easily and reliably sealed inside the bag body 11.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the contact stepped portion does not necessarily have to be a ring-shaped flat surface. For example, the contact stepped portion is constituted by a concave groove in which the surface of the base end portion 22 is depressed or a raised convex rib. You may make it contact | abut in the state which fits the contact contact part of a member. Further, it is not always necessary to provide the knob portion in the planned cutting portion, and it is not always necessary to form the easily breakable portion along the inclined surface. Furthermore, in addition to the narrow groove-shaped concave portion, other well-known various easily breakable portions such as a cut line can be adopted as the easily breakable portion, and the spout forming portion is perpendicular to the mounting surface by the bottom portion. It is not always necessary to be provided in any direction.

  The present invention is suitable for a thin bag container in which a synthetic resin container is rich in flexibility, but it is not necessarily flexible, and the container body has a cylindrical shape or a rectangular shape other than a flat hollow cross-sectional shape. The hollow cross-sectional shape may be provided. Further, the cap member does not necessarily need to be a cap portion of the liquid ejector. For example, when a synthetic resin container is used as a refill container, the cap member is used to re-enclose and store the remaining contents. An opening / closing cap attached to the outlet forming portion may be used. Furthermore, as shown in FIG. 5, a cap member of a trigger-type discharger can be used as a liquid discharger by mounting it on a male screw formation region at the base end.

(A) is the front view of the synthetic resin container which concerns on preferable one Embodiment of this invention, (b) is the side view which looked at (a) from the left side. It is a principal part front view of the synthetic resin container which concerns on preferable one Embodiment of this invention. It is a principal part perspective view of the synthetic resin container which concerns on preferable one Embodiment of this invention. (A), (b) is principal part sectional drawing which shows the state which mounted | wore the spout formation part of the synthetic resin container with the cap part of the liquid discharger as a screwing member. It is principal part sectional drawing which shows the state which mounted | wore the spout formation part of the synthetic resin container with the cap member of the trigger type liquid discharger.

Explanation of symbols

10 Synthetic resin containers (self-supporting bags)
11 Bag body (container body)
DESCRIPTION OF SYMBOLS 12 Liquid ejector 13 Spout formation part 14 Cap member 15 of liquid ejector 15 Discharger 16 of liquid ejector Bottom part 17 Body part 18 Easily rupture part 19 Cut-out part 20 Female screw 21 Male screw 22 Base end of spout formation part Portion 22A Male thread formation region 22B Base end tip region 23a Tip outer peripheral edge 23b of male screw formation region Base end outer periphery 24 of base end tip region Filling port portion 25 Contact step portion 26 Contact contact portion 30 Knob Piece (knob part)
33 Ring-shaped flat surface P1 Surface P2 provided with a contact stepped portion Surface θ inclined with respect to a surface provided with a contact stepped portion

Claims (4)

It is used as a sealed container for refilling or replacement, and a container body made of a synthetic resin, which is molded and made up of a barrel part and a bottom part, projects a filling port part and a spout forming part into the container body. Is a container for liquid supply, in which the storage liquid is filled and stored, and the filling port is sealed and sealed,
It is possible to pour the contained liquid by forming the spout by cutting or breaking the easily breakable portion provided in the spout forming portion,
The cap member can be screwed to the male screw provided on the outer peripheral surface of the base end portion which is the trunk portion side of the easily breakable portion of the spout forming portion,
In the state before the easily breakable portion is cut or broken, the proximal end portion of the proximal end portion is a portion where the tip opening becomes a spout when the easily breakable portion is cut or broken. Along with the planned excision part, it has a dome shape, or a hollow, substantially truncated cone shape that gradually tapers toward the tip,
In the base end portion, between the male screw forming region provided with the male screw and the base end portion tip region closer to the easily breakable portion than the male screw forming region , in the circumferential direction of the base end portion An annular contact step is provided,
A liquid supply container in which an abutting contact portion provided inside the cap member abuts against the abutting step portion.   The contact stepped portion is formed of a ring-shaped flat surface protruding so as to protrude outward from the outer peripheral surface on the side of the easily breakable portion with respect to the male screw forming region of the base end portion, and the ring-shaped flat surface The liquid supply container according to claim 1, wherein the container is continuous with the male screw formation region.   The liquid supply container according to claim 1 or 2, wherein a knob portion is provided in a portion to be cut of the spout forming portion. The liquid supply container according to any one of claims 1 to 3, wherein the easily breakable portion is formed along a surface inclined with respect to a surface on which the contact step portion is provided.

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