JP4126655B2 - Tube body container and composite container using this tube body container - Google Patents

Description

  The present invention relates to a tube body container that is advantageous for use as a refill container for storing a content liquid such as a cosmetic liquid by using a flexible tube, and a composite container using the tube body container It is.

  For the purpose of reducing the price of cosmetic containers, a composite container is constructed by detachably assembling an inexpensive refill container for storing the contents liquid into an outer container body with excellent design and mechanical strength. When the content liquid is used up, it is often used to replace only the refill container with a new one and reuse the expensive outer container as it is.

As a refill container in this composite container, an upper annular portion and a lower bottom portion are integrally joined to both ends of a cylindrical body formed by rolling a plastic laminate film by means of insert injection molding means. There is.
JP 2001-278292 A

Also, as the same refill container, a bottom plate member is fitted into the lower end opening of a cylindrical member formed by rolling a soft film, and is welded in an airtight manner, and a ring member is fitted into the upper end opening for airtightness. Some of them are welded in a shape.
JP 2002-104448 A

  However, in the prior art disclosed in Patent Document 1, since the insert injection molding is performed on the upper and lower ends of the cylindrical body portion, the insert injection molding facility is likely to be large, which increases the manufacturing cost. There was a problem of fear.

  In Patent Document 1, when a refill container is assembled to an outer container body to form a composite container, a dedicated member for coupling the refill container and the outer container body is required. There is a problem that the overall structure of the system becomes complicated and the handling becomes troublesome.

  Moreover, in the prior art disclosed by patent document 2, in the state which made the bottom-plate member and the ring member closely fit with respect to the cylindrical member made from a soft film, it welds and fixes by applying pressure between both. Therefore, since excessive pressure is easily applied to the cylindrical member, unauthorized deformation or insufficient strength may occur, and both the bottom plate member and the ring member are located inside the cylindrical member. However, there is a problem that the capacity of the formed cylindrical member may be reduced or the content liquid from the inside of the cylindrical member may be disturbed.

  Therefore, the present invention was devised to solve the above-described problems in the prior art, and can be easily molded, can exhibit sufficient strength as a refill container, and can be easily attached to and detached from the outer container body. Therefore, an object of the present invention is to provide a tube container that can be easily and inexpensively manufactured, and to simplify the structure of a composite container using the tube container.

Among the present invention for solving the above technical problem, the means according to claim 1 is:
A bottom plate that is molded into a flat plate by compression molding is welded and fixed to the lower end opening of a cylindrical synthetic resin tube that can be flexibly deformed, and the upper end opening of the tube is welded and fixed. The ring-shaped shoulder parts with the upper end projecting upward from the upper end of the tube are tightly welded and fixed, and the upper end of the tube is thermoformed into a curled portion with an outwardly curved diameter. The upper end surface of the body cylinder piece in the shape of a short cylindrical piece of shoulder parts is divided into a higher outer ring end surface and a lower inner ring end surface via a step, and the curl of the tube The part is pressed and welded to the inner ring end face, and the tube and shoulder parts are welded and fixed closely,
It is in.

  According to the first aspect of the present invention, the tight welding of the tube and the bottom plate can be easily and reliably achieved by the compression molding means, and the bottom plate can be formed into a desired shape.

  Further, since the upper end portion of the tube is pressed and welded to the ring-shaped shoulder part that is externally fitted, an excessive pressing force is not applied to the upper end portion of the tube at the time of this press welding.

In addition , due to the abutment of the curl portion against the inner ring end face, accurate assembly alignment between the tube and the shoulder part is inevitably achieved, and the pressure weld between the curl part and the inner ring end face is along the vertical direction. Since it is achieved by the pressing force, there is no action of an external force that illegally deforms the tube.

The invention described in claim 2 is a configuration in which the short cylindrical attachment / detachment cylinder piece having the attachment / detachment functional portion is suspended from the outer peripheral end of the wide flat ring plate-like top plate in the configuration of the invention described in claim 1 , A joint part in which a mouth piece having an attaching / detaching function portion on an outer peripheral surface is closely fixed to a shoulder part from an inner peripheral end of the top plate is added.

In the invention according to claim 2, the outlet piece of the stored content liquid is regulated to a form advantageous for the outlet, and a cap piece that can be assembled with a functional member such as a cap, and an outer container Since the detachable cylinder piece that provides the assembly part to the body or the like is provided integrally, the attachment of the desired member and the assembly to the desired member can be easily achieved.

The invention according to claim 3 achieves the close fixing of the joint part to the shoulder part by the close welding of the lower surface of the top plate of the joint part and the outer ring end face of the shoulder part in the configuration of the invention of claim 2 . That is,

In the invention according to claim 3 , the welding of the joint part to the shoulder part welded and fixed to the upper end of the tube can be achieved without adversely affecting the welding between the tube and the shoulder part.

The invention according to claim 4 is the structure of the invention according to claim 2 or 3, wherein the suction pipe is inserted into the tube from the mouthpiece piece of the joint part, and the pump is closely assembled to the mouthpiece piece. , Is added.

In the invention according to claim 4 , since a refill container with a pump can be obtained, refilling of the content liquid becomes extremely simple, and the tube can be reduced without opening the tube body container. The content liquid can be directly poured out by a pump after being deformed.

The invention according to claim 5 is obtained by adding the thickness of the tube to the range of 0.2 to 0.5 mm in addition to the configuration of the invention according to claim 1, 2, 3 or 4. is there.

In the invention according to claim 5, the ease of bending deformation of the tube can be adjusted and set to a desired level while maintaining the strength of the tube body container, and the tube body adapted to the use conditions A container can be provided.

The invention described in claim 6 is obtained by adding the tube made of an aluminum laminated sheet to the configuration of the invention described in claim 1, 2, 3, 4 or 5 .

In the invention according to the sixth aspect, it is possible to provide a tube body container exhibiting high gas barrier properties. In addition, in this invention of Claim 7, it becomes possible to further improve the gas barrier property of a tube body container by also making a baseplate from an aluminum laminated sheet.

The means of the invention described in claim 7 is:
A bottom plate that seals the lower end opening of the tube is welded and fixed to the lower end opening of the cylindrical synthetic resin tube that can be bent and deformed, and the upper end of the tube is The upper end surface of the main body cylinder piece, which is formed into a short cylindrical piece of shoulder parts, is formed into a higher outer ring end surface and a lower inner ring end surface via a stepped portion. A short cylindrical shape with a detachable functional part from the outer peripheral end of the wide flat ring plate shape, with the curled portion pressed and welded to the inner ring end face, and the tube and shoulder parts are welded and fixed tightly A tube body container (1) with a joint part in which a mouth piece having an attachment / detachment function portion on the outer peripheral surface is closely fixed to the shoulder part from the inner peripheral end of the top plate. Making up the
Configuring an outer container body made of a hard material having a bottomed cylindrical shape;
A tube body container is inserted into this outer container body, a tube is inserted, and a detachable cylinder piece of a joint part is assembled so as to be detachable to constitute a composite container,
It is in.

In this invention of Claim 7, it is comprised from a tube, a baseplate, a shoulder part, and a joint part, and achieves whole sealing by sealing the mouthpiece piece of a joint part with a lid etc. Can be used as a refill container, so the refill container can be assembled to the outer container body as it is to form a composite container, which requires no refilling of the contents liquid. In addition, refilling of the contents liquid can be achieved only by changing the tube container.

  In addition, since the tube body container is provided with a removable cylindrical piece in the joint part in advance as an assembled functional part with respect to the outer container body, the tube body container and the outer container body are combined to form a composite container. No special member that is a separate member is required.

  Since the outer container body is made of a hard material, it exhibits a stable self-shape-holding ability, thereby enabling a tube that can be flexibly deformed to be safely held, and to obtain a good use situation of the content liquid, Further, after the content liquid has been used up, the volume of the tube can be sufficiently reduced and deformed, so that the tube body container can be made sufficiently small and discarded.

The invention according to claim 8 is the structure of the invention according to claim 7, wherein the suction pipe is inserted into the tube from the mouthpiece piece of the joint part, and the pump is closely assembled to the mouthpiece piece. It is added.

In the invention described in claim 8 , since the tube body container as the refill container is composed of the tube, the shoulder part, the joint part, and the pump, the user must open the tube body container at all. However, the content liquid is poured out by a pump, and therefore, there is no opportunity for outside air to enter the tube.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the invention described in claim 1, since the close welding between the tube and the bottom plate can be achieved easily and reliably, a bottom portion having sufficient strength can be obtained and the bottom plate can be formed into a desired shape. Therefore, it can be easily formed into a suitable shape according to the use situation of the tube body container.

  Also, when pressing and welding the tube and shoulder parts, excessive pressing force is not applied to the upper end of the tube, so there is no inconvenience such as unauthorized deformation or local strength deterioration in the tube, Safe welding molding between the tube and shoulder parts can be reliably obtained.

In addition , accurate assembly alignment between the tube and shoulder parts is inevitably achieved, so that accurate assembly work can be easily obtained, and the pressure welding between the tube and shoulder parts is performed along the vertical direction. Since it is achieved by the pressing force, there is no action of an external force that illegally deforms the tube, and welding of the tube and the shoulder part can be safely achieved.

In the invention according to claim 2 , since the attachment of the desired member to the tube body container and the assembly of the tube body container to the desired member can be easily achieved, the handling of the tube body container is convenient and easy. It becomes.

In the invention according to claim 3 , since welding of the joint part to the shoulder part can be achieved without adversely affecting the welding between the tube and the shoulder part, molding of the tube body container having the joint part is achieved. Can be done safely.

In the invention according to claim 4 , refilling of the content liquid becomes very simple, and the content liquid is directly poured out by the pump without opening the tube body container and by reducing the volume of the tube. Therefore, it is possible to eliminate the intrusion of outside air into the tube body container.

In the invention of claim 5, the ease of bending deformation of the tube can be set to a value suitable for the use conditions while maintaining the strength of the tube body container. An easy tube body container can be provided.

In the invention described in claim 6, since it becomes possible to provide a tube body container exhibiting high gas barrier properties, it functions effectively as a storage container for high-grade cosmetic liquid containing volatile components. Can do.

In the invention described in claim 7 , the tube container can be used as it is as a refill container and can be assembled to the outer container body to constitute a composite container, whereby there is no need to refill the contents liquid directly. Since the refilling of the content liquid can be achieved only by changing the tube container, the refilling of the content liquid becomes extremely simple.

  In addition, a special container, which is a separate member, is not required to form a composite container by combining a tube container that is a refill container and an outer container body, so that the structure of the composite container obtained is simple. It can be.

  Furthermore, since it is possible to safely hold a tube that can bend and deform, and to obtain a good usage situation of the content liquid, an easy-to-use container can be obtained, and the tube body container can be made sufficiently small and discarded. Therefore, disposal can be performed easily and efficiently.

In the invention described in claim 8 , the content liquid is poured out by the pump without opening the tube body container which is a refill container at all, and therefore, there is absolutely no opportunity for outside air to enter the tube. Thus, the content liquid can be safely stored and held for a long period of time while maintaining the state in which it can be dispensed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the most basic structure of a tube body container 1 according to the present invention. A tube 2 made of a cylindrical synthetic resin that can be flexibly deformed and has a thickness of 0.2 to 0.5 mm. The bottom opening 4 is hermetically sealed at the lower end opening, and the bottom plate 4 is welded and fixed, and the upper end of the tube 2 is protruded upward from the upper end edge of the tube 2 and is externally fitted to the tube 2. A ring-shaped shoulder part 5 is welded and fixed.

  2 and 3 are diagrams for explaining an example of an operation for welding and fixing the shoulder part 5 to the upper end of the tube 2 whose lower end opening is sealed with a compression-formed bottom plate 4. The upper end of the tube 2 is The curl part 3 is molded by a curl part forming jig (not shown).

  The heat molding temperature of the curled portion 3 is set according to the molding resin material and the thickness of the tube 2, but is generally set to a value within the range of 70 to 200 ° C. When it is made of polyethylene and has a thickness of about 0.33 mm, the molding heating temperature is suitably around 75 ° C.

  As shown in FIG. 2, an outer flange-shaped flange piece 9 is integrally provided on the upper end portion of a short cylindrical main body cylinder piece 6 having an inner diameter substantially equal to the outer diameter of the tube 2, and the upper end surface is provided with a stepped portion. Thus, the curled portion 3 is connected to the inner ring end surface 7 from above the tube 2 having the bottom plate 4 welded to the shoulder part 5 formed by partitioning the lower inner ring end surface 7 and the upper outer ring end surface 8. Insert and assemble until it hits. That is, the tube 2 is inserted into the shoulder part 5 up to the assembly limit.

  Next, as shown in FIG. 3, with the shoulder part 5 supported by the receiving jig 23 from below, the welding ring end face 25 of the welding jig 24 that has been lowered is hooked on the inner ring end face 7 of the shoulder part 5. The curled part 3 is pressed against the inner ring end face 7 as it is pressed against the curled part 3.

  The welding and fixing of the curled portion 3 to the inner ring end surface 7 by the welding jig 24 may be performed by an appropriate means such as heat welding or high-frequency welding. Is achieved at a heating temperature of 150-300 ° C. with a suitable pressing force according to the heating time determined according to

  As a specific example, if both the tube 2 and the shoulder part 5 are made of polyethylene, the welding ring end face 25 heated to 200 ° C. is pressed with a pressing force of 2.5 kg / cm for 2 seconds. Is appropriate.

  FIG. 4 shows an example of a configuration in which the tube container 1 shown in FIG. 1 is used as a refill container. With the content liquid stored in the tube container 1, the outer ring end face 8 of the shoulder part 5 The seal film 14 is densely welded.

  The sealing film 14 that seals the tube body container 1 has an easily peelable or easy breakage of the tube part container 1 as a refill container, for example. Make it easy to open.

  The sealing and fixing of the seal film 14 to the shoulder part 5 is performed on the outer ring end surface 8 positioned higher than the inner ring end surface 7 on which the curled portion 3 is welded. There is no possibility of adversely affecting the welding with the ring end face 7.

  FIG. 5 shows another example of a configuration in which the tube body container 1 shown in FIG. 1 is used as a refill container. The cap body type cap is fitted on the shoulder part 5 of the tube body container 1 containing the content liquid. 15 is assembled closely.

  In the embodiment shown in FIG. 5, the fitting and fixing of the lid 15 to the shoulder part 5 can be easily welded in a state where the lid 15 can be easily peeled as in the case of the sheet film 14. There is no need to be dense.

  FIG. 6 shows an example in which the tube body container 1 is constructed by further assembling the joint part 10 to the combination of the tube 2, the bottom plate 4 and the shoulder part 5, and the top plate 11 having a wide ring plate shape. An detachable cylindrical piece 12 having a detachable functional part such as a thread on the inner peripheral surface is suspended from the outer peripheral end of the lower surface of the top plate 11, and an detachable functional part such as a locking piece is provided on the outer peripheral surface from the inner peripheral end of the top plate 11. The provided mouthpiece piece 13 is erected to constitute the joint part 10, and this joint part 10 is assembled by closely welding the lower surface of the top plate 11 to the outer ring end surface 8 of the shoulder part 5.

  7 and 8 show an example in which the tube container 1 shown in FIG. 6 is configured as a refill container. FIG. 7 shows a configuration in which the mouthpiece piece 13 is sealed with a seal film 14, and FIG. The configuration in which the mouthpiece piece 13 is sealed with a lid 15 is shown.

  9 and 10 show still another example of the configuration of the tube body container 1, and a configuration in which a pump 16 is further assembled to a combination of the tube 2, the bottom plate 4, the shoulder part 5, and the joint part 10. The pump 16 is configured by attaching a nozzle head 18 to a pump main body 17 to which an assembled cap 20 is assembled so as to be movable up and down, and a suction pipe 19 in a suspended manner. In the state where the suction pipe 19 is inserted into the tube 2 from the mouthpiece piece 13, the assembled cap 20 is assembled and fixed to the mouthpiece piece 13 so as to be closely assembled to the joint part 10.

  When the tube body container 1 shown in FIG. 10 is used as a refill container, the pump 16 is naturally assembled in a state in which the liquid contents are stored. It is desirable that the head 18 is configured to be locked at the lower limit position, or has an overcap capable of covering the entire nozzle head 18.

  FIG. 11 shows a composite container assembled with an outer container body 21 having a bottomed cylindrical shape using the tube body container 1 shown in FIG. 6 as a refill container. The tube body container 1 is attached to and detached from the joint part 10. The cylindrical piece 12 is detachably assembled by screwing into the opening 22 of the outer container body 21.

  The outer container body 21 that is repeatedly used can be made of a hard synthetic resin material or a metal material so that the appearance of the outer container body has a high-class appearance and has a high mechanical strength. The flexible tube 2 can be sufficiently protected.

  The composite container shown in FIG. 11 is used with a cap body attached to and detached from the mouthpiece piece 13 to open and close the container as shown in FIG. Although the lid 15 in the embodiment shown in FIG. 5 is preferably used as it is, a dedicated one may be prepared again.

  FIGS. 13 and 14 show a composite container in which the tube body container 1 shown in FIG. 10 is assembled to the outer container body 21 as a refill container. Similarly to the embodiment of FIG. The outer container body 21 is detachably assembled, and the content liquid can be poured out and used by operating the pump 16 as it is.

  In the embodiment of the composite container shown in FIG. 14, the content liquid is poured out and used without opening the tube body container 1 which is a refill container at this time. By preventing the outside air from entering the inside, it is possible to maintain the quality of the content liquid in a highly sanitary manner and stably over a long period of time.

  In addition, when the content liquid is poured and used while reducing the volume of the tube 2 in this manner, the size of the tube body container 1 is sufficiently small when the content liquid is used up. Therefore, the disposal is easy.

  In the embodiment shown in FIG. 4, the joint part 10 is configured to be detachable from the shoulder part 5 of the refill container, whereby the purchased refill container is assembled to the outer container body 21 with the joint part 10. Further, the pump 16 can be assembled and fixed to the joint part 10 while the sheet film 14 is pierced and broken at the lower end of the suction pipe 19.

  In this case, the refill container can be obtained at the lowest cost with the simplest structure, and the joint part 10, the pump 16, and the outer container body 21 can be reused, which is very economical.

  In the embodiment shown in FIG. 12, it is also possible to assemble and use the pump 16 that is repeatedly used. In this case, the seal film 14 that seals the mouthpiece piece 13 is used as the suction pipe 19 of the pump 16. It is also possible to achieve puncture by piercing and breaking at the lower end.

The longitudinal cross-sectional view which shows the basic structure of the tube body container by this invention. Explanatory drawing which shows the assembly | attachment process of the tube and shoulder part of the Example shown in FIG. Explanatory drawing which shows the welding process of the tube and shoulder part of the Example shown in FIG. The whole longitudinal cross-sectional view which shows an example of the structure of the refill container comprised by the tube body container shown in FIG. The whole longitudinal cross-sectional view which shows the other example of the structure of the refill container comprised with the tube body container shown in FIG. Assembly explanatory drawing which shows the other structure of the tube body container by this invention. The whole longitudinal cross-sectional view which shows an example of the structure of the refill container comprised with the tube body container shown in FIG. The whole longitudinal cross-sectional view which shows an example of the structure of the refill container comprised with the tube body container shown in FIG. Assembly explanatory drawing which shows other structure of the tube body container by this invention. The whole longitudinal cross-sectional view of the refill container obtained by the assembly shown in FIG. The assembly explanatory drawing which assembles the composite container by assembling the tube body container shown in FIG. 6 to the outer container body. The whole longitudinal cross-sectional view which shows an example of the composite container obtained by the assembly shown in FIG. The assembly explanatory drawing which assembles the composite container by assembling the tube body container shown in FIG. 10 to the outer container body. The whole longitudinal cross-sectional view which shows an example of the composite container obtained by the assembly shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Tube body container 2; Tube 3; Curl part 4; Bottom plate 5; Shoulder part 6; Main body cylinder piece 7; Inner ring end surface 8: Outer ring end surface 9; Barb piece 10: Joint part 11; Top plate 12; 13; Mouthpiece 14; Seal film 15; Lid 16; Pump 17; Pump body 18; Nozzle head 19; Suction pipe 20; Cap assembly 21; Outer container body 22; Opening 23; Welding jig 25; Welding ring end face

Claims (8)

A bottom plate (4) which is molded into a flat plate shape by compression molding at the lower end opening of a cylindrical plastic resin tube (2) that can be flexibly deformed, and which seals the lower end opening of the tube (2) is welded and fixed. Further, a ring-shaped shoulder part (5) fitted to the upper end opening of the tube (2) with the upper end surface protruding upward from the upper end of the tube (2) is closely welded and fixed , The upper end of the tube (2) is thermoformed into a curled portion (3) that is curved and expanded outward, and the upper end surface of the main body cylinder piece (6) in the shape of a short cylindrical piece of the shoulder part (5), Through the stepped portion, the upper outer ring end surface (8) and the lower inner ring end surface (7) are partitioned, and the curled portion (3) is pressed and welded to the inner ring end surface (7). A tube body container formed by closely welding and fixing the tube (2) and the shoulder part (5) .   A short cylindrical attachment / detachment cylinder piece (12) having an attachment / detachment function portion is suspended from an outer peripheral end of a wide flat ring plate-like top plate (11), and an outer periphery from the inner peripheral end of the top plate (11). The tube body container according to claim 1, wherein a joint part (10) having a mouthpiece piece (13) having an attaching / detaching function portion on a surface thereof is closely fixed to a shoulder part (5). The tube body container according to claim 2, wherein the joint part (10) and the shoulder part (5) are firmly fixed by close welding of the lower surface of the top plate (11) and the outer ring end surface (8). The suction pipe (19) is inserted into the tube (2) from the mouthpiece piece (13) of the joint part (10), and the pump (16) is closely assembled to the mouthpiece piece (13). The tube body container according to 2 or 3 .   The tube body container of Claim 1, 2, 3 or 4 which set the thickness of the tube (2) in the range of 0.2-0.5 mm. The tube body container according to claim 1, 2, 3, 4 or 5 , wherein the tube (2) is made of an aluminum laminated sheet. A bottom plate (4) which is molded into a flat plate shape by compression molding at the lower end opening of a cylindrical plastic resin tube (2) that can be flexibly deformed, and which seals the lower end opening of the tube (2) is welded and fixed. The upper end portion of the tube (2) is thermoformed into a curled portion (3) having an outwardly curved diameter, and the shoulder cylinder (5) is formed into a short cylindrical piece of the main body cylinder piece (6). The upper end surface is divided into a higher outer ring end surface (8) and a lower inner ring end surface (7) through a stepped portion, and the curled portion (3) is pressed against the inner ring end surface (7). A short cylindrical attachment / detachment cylinder having an attachment / detachment function portion from the outer peripheral end of the top plate (11) having a wide flat ring plate shape by welding and fixing the tube (2) and the shoulder part (5) closely. A piece (12) hangs down and attaches to the outer peripheral surface from the inner peripheral end of the top plate (11). A tube body container (1) in which a joint part (10) having a mouthpiece piece (13) having a portion is fixedly fixed to the shoulder part (5), is made of a hard material having a bottomed cylindrical shape. A composite container in which a tube (2) is inserted into a container body (21) and the tube (2) is detachably assembled with a removable cylindrical piece (12) of the joint part (10). The suction pipe (19) is inserted into the tube (2) from the mouthpiece piece (13) of the joint part (10), and the pump (16) is closely assembled to the mouthpiece piece (13). 7. The composite container according to 7 .

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