JP2011020729A - Cartridge container for beverage dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and firmly attach a separate handle member for reverse suspension to the bottom of a cartridge container formed by stretch blow molding for a beverage dispenser. <P>SOLUTION: An original protrusion in a preform state is molded by stretch blow molding into a protrusion 3 having a circular head 3b with an enlarged diameter at the front end of a neck 3a with a small diameter. A cone cylindrical part 16 is provided on the inner periphery side of an annular base 12 of the separate handle member 11 so as to arise with its front end side inclined inward. The base end inner diameter of the cone cylindrical part 16 is formed larger than that of the circular head 3b, and a front end inner diameter of the cone cylindrical part 16 is formed smaller than that of the circular head 3b. On the front end side of the cone cylindrical part 16, a plurality of incisions 16a are provided which can enlarge the diameter of the front end. The diameter of the front end of the cone cylindrical part 16 is enlarged, and the cone cylindrical part 16 is fitted around a neck 3a under the circular head 3b with its base end side in the lead, thereby easily and firmly attaching the separate handle member 11 for the reverse suspension to the bottom of a container body 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a beverage dispenser cartridge container connected downward to a beverage dispenser.

  In order to connect a cartridge container for a beverage dispenser used for a beverage dispenser such as drinking water or juice to a container connecting portion provided on the upper surface of the beverage dispenser, with a cylindrical mouth portion for discharging a filled beverage facing down, In many cases, a handle suspended upside down is provided on the bottom of a resin container body (see, for example, Patent Document 1).

  As a means for providing such a handle for hanging upside down on the bottom of the resin container body, the container body is stretch blow molded from the preform, and the original protrusion provided on the bottom of the preform is used. Then, a method of integrally forming the original protruding portion into a handle shape by stretch blow molding (see, for example, Patent Document 2) and a separate handle member having an annular base portion are prepared, and this separate handle The annular base portion of the member is set around the original projecting portion of the preform, and the original projecting portion is bulged outside the inner diameter of the annular base portion by stretch blow molding, and the bulged original projecting portion of the handle member A method of making the annular base portion non-separable from the container main body (for example, see Patent Document 3) is known.

  Polypropylene (PP), polyethylene (PE), copolymers thereof, polyethylene terephthalate (PET), and the like are used as the resin for the container body to be stretch blow molded. Since PET is excellent in transparency, gas barrier properties, chemical resistance, pressure resistance, etc., it is suitable for a beverage dispenser cartridge container.

JP 2006-103758 A JP 2004-196332 A JP-A-4-133715

  The method of integrally forming the preform protruding portion of the preform into the shape of the handle by stretch blow molding described in Patent Document 2 is limited in the size and shape of the handle, and a large amount like a cartridge container for a beverage dispenser. It is not suitable for forming a handle that hangs a heavy container filled with beverages upside down. Further, since the handle portion is integrally formed, the shape of the stretch blow molding die is also complicated.

  On the other hand, the method of making the annular base portion of the separate handle member described in Patent Document 3 non-separable by the protruding portion obtained by expanding the original protruding portion by stretch blow molding is not limited in the size or shape of the handle. However, since it is necessary to set a separate handle member in advance in the mold for stretch blow molding, there is a problem that the stretch blow molding takes time and the shape of the mold is complicated.

  Accordingly, an object of the present invention is to firmly attach a separate handle member for hanging upside down to the bottom of a cartridge container for a beverage dispenser which is stretch-blow molded without taking time and effort.

  In order to solve the above-described problems, the present invention provides a separate handle member for hanging upside down on the bottom of a resin container body that is stretch blow molded from a preform having an original projection at the bottom. In the cartridge container for beverage dispenser to which the annular base portion is attached, the original projection portion of the preform is molded by the stretch blow molding into a projection portion having a circular head diameter expanded on the distal end side of the small-diameter neck portion. A conical cylinder portion is provided on the inner peripheral side of the annular base portion of the handle member of the body so that the tip end side is inclined inward, and the base end inner diameter of the conical cylinder portion is larger than that of the circular head portion. The inner diameter of the tip of the tube portion is smaller than the circular head, and a plurality of cuts are provided on the tip side of the conical tube portion so as to open on the tip surface and allow the tip portion to expand in diameter. Increase the diameter of the tip side of the provided conical cylinder, The conical cylinder part is fitted from the base end side to the lower neck part of the circular head of the projecting part, and after this fitting, the inner diameter of the tip of the enlarged conical cylinder part is made smaller than the circular head. A configuration is adopted in which the annular base portion of the handle member is attached to the bottom of the stretch blow molded container body.

  That is, the preform's original protrusion is molded by stretch blow molding into a protrusion having a circular head that is expanded on the tip side of the small-diameter neck, on the inner peripheral side of the annular base of the separate handle member, A conical cylinder portion that rises so that the distal end side is inclined inward is formed, and the proximal inner diameter of the conical cylinder portion is made larger than the circular head, and the distal inner diameter of the conical cylinder portion is made smaller than the circular head. The conical cylinder portion is provided with a plurality of cuts that are open on the distal end surface of the conical cylinder portion so that the diameter of the distal end portion can be increased, and the conical cylinder portion provided with the cuts is expanded in diameter. Part of the handle from the base end side to the lower neck part of the circular head of the projecting part, and after this fitting, the diameter of the tip of the conical cylinder part whose diameter is increased is smaller than that of the circular head, Stretch blow molding by attaching an annular base to the bottom of a stretch blow molded container body The bottom of the beverage dispenser cartridge container to be molded, a separate body of the handle member for lowering hanging upside down, and to allow firm attachment of without any trouble.

  By making the height dimension of the conical cylinder part higher than the height dimension of the lower neck part of the circular head, and providing a negative height gap to the conical cylinder part fitted into the neck part, the handle member The annular base portion can be firmly fixed to the bottom of the container without rattling.

  By forming the tip surface of the conical cylinder part in a plane perpendicular to the axial direction of the cone cylinder part, the tip surface of the cone cylinder part can be stably brought into contact with the lower surface side of the circular head in a wide area. it can.

  The separate handle member has a pair of C-shaped handle portions facing opposite to each other, and a bifurcated base portion projecting outwardly from the annular base portion and bifurcated into a bifurcated portion at a phase of 180 °. Provided at two locations, the base ends on both sides of each of the pair of C-shaped handle portions are connected to the tip of one of the bifurcated base portions provided at the two locations, respectively. By making the connecting portion of the base end and the tip of the bifurcated base portion bendable so that the pair of handle portions are held together, the hanging force when hanging the cartridge container upside down can be reduced to two bifurcated portions. It can be evenly distributed in four continuous parts with a pair of C-shaped handle parts of the base part, and can be sufficiently tolerated to suspend heavy cartridge containers filled with beverages.

  The means for allowing the connecting portion to bend is formed such that the thickness of the connecting portion in the bent cross section is thinner than both sides, and the connecting portion formed to be thin is bent toward the bottom side of the container body. By doing this, it is possible to ensure the durability of the continuous portion against repeated bending.

  When providing a grooved groove for weight reduction or the like extending in the C-shaped direction on the mating side surface of the pair of C-shaped grip portions gripped together, at least one of the mating grooves on the mating side surface By providing a weir with a height equal to the depth of the grooving groove, when the pair of grip portions are gripped together, the grooving grooves on the mating side surfaces are prevented from interdigitating and heavy cartridges When the container is suspended upside down, it is possible to prevent the meat of the surface layer portion of the hand from being strongly pinched between them.

  In the case where the mating side surfaces of the pair of grip portions gripped together are flat surfaces, by providing a projection on at least one mating side surface which is the flat surface, the pair of grip portions are aligned. When gripping, a gap is formed between the other mating side surface, and when hanging a heavy cartridge container upside down, the meat on the surface layer of the hand is placed between the flat mating surfaces of the pair of handle portions. Can be prevented from being pinched strongly.

  By forming the separate handle member from the same type of resin as the resin container main body, it is possible to eliminate the separation when the cartridge container is discarded.

  The same type of resin that forms the handle member separate from the container body may be polyethylene terephthalate.

  The cartridge container for a beverage dispenser of the present invention is formed by stretching an original projection of a preform into a projection having a circular head that is expanded on the tip side of a small-diameter neck by stretch blow molding. A conical cylinder portion is provided on the inner peripheral side of the annular base portion so that the tip end side is inclined inward. The conical tube portion has a base inner diameter larger than that of the circular head and a circular cone. Formed with a smaller diameter than the head, and provided on the distal end side of the conical cylinder portion with a plurality of cuts that open to the distal end surface thereof, allowing the diameter of the distal end portion to be increased, and the distal end side of the conical cylinder portion provided with this cut The conical tube portion is fitted from the proximal end side to the lower neck portion of the circular head of the projecting portion, and after this fitting, the diameter of the tip end of the expanded conical tube portion is smaller than that of the circular head portion. The annular base of the handle member on the bottom of the stretch blow molded container body Since Attach the bottom of the beverage dispenser cartridge container formed by stretch blow molding, a separate body of the handle member for lowering hanging upside down, it can be firmly attached without any trouble.

Cutaway front view showing cartridge container for beverage dispenser according to the present invention Bottom view of FIG. The top view which shows the handle member of FIG. a and b are sectional views taken along lines IVa-IVa and IVb-IVb in FIG. 3, respectively. a, b, and c are sectional views showing a process of fitting the conical tube portion of the handle member of FIG. 3 into the lower neck portion of the circular head portion. 3 is a cutaway side view showing a state in which the pair of handle portions of the handle member of FIG. The top view which shows the modification of the handle member of FIG. Sectional view along line VIII-VIII in FIG. The notch side view which shows the state match | combined in order to hold | grip a pair of handle part of the handle member of FIG. The longitudinal cross-sectional view which shows the state which set the cartridge container of FIG. 1 to the drink dispenser

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this beverage dispenser cartridge container, as shown in FIGS. 1 and 2, the container body 1 made of PET is formed from a preform into a thin square bottle shape by stretch blow molding, A separate handle member 11 made of PET is attached and can be suspended upside down with the tube opening 2 facing downward. This container main body 1 has the flexibility which can be folded.

  At the center of the bottom of the container body 1, a protrusion 3 having a circular head 3 b that is expanded on the tip side of the small-diameter neck 3 a by using the original protrusion of the preform is formed by stretch blow molding. Molded at the same time. The neck 3a and the circular head 3b are hollow, and the outer diameter surface of the circular head 3b has a rounded cross-sectional shape.

  As shown in FIG. 3 and FIGS. 4A and 4B, the separate handle member 11 includes an annular base 12 that fits into the neck 3 a of the protrusion 3 and a 180 ° phase of the annular base 12. And a bifurcated base portion 13 that projects from the two locations to the outer diameter side and branches into a bifurcated portion, and a pair of C-shaped handle portions 14 that face opposite sides of each other. The bifurcated base portion 13 is connected to one end of the bifurcated base portion 13 at a bifurcated portion 15. Reinforcing ribs 12 a and 13 a are formed on the outer peripheral portions of the annular base portion 12 and the bifurcated base portion 13, respectively.

  A conical cylinder portion 16 is provided on the inner peripheral side of the annular base portion 12 so that the distal end side is inclined inward. The conical cylinder portion 16 has a base end inner diameter that is larger than that of the circular head 3b of the projecting portion 3. A large diameter is formed so that the tip inner diameter is smaller than that of the circular head 3b, and as will be described later, a plurality of cuts 16a capable of expanding the tip side are provided in the tip surface 16b. These cuts 16a may be only cut lines without notches.

  The continuous portion 15 is formed thinner than the proximal end of the handle portion 14 and the distal end of the bifurcated base portion 13 on both sides, and is formed to bend downward toward the bottom side of the container body 1, as will be described later. The pair of handle portions 14 can be bent so as to be held together.

  When the C-shaped handle portion 14 is provided with a groove 14a extending in the C-shape on both side surfaces in order to ensure rigidity and light weight, the pair of handle portions 14 are gripped together. The weirs 14b having a height equal to the depth of the grooves are provided in two places in the groove 14a on the mating side surface of the one grip portion 14. In addition, each handle portion 14 is formed so that the width of the central gripping portion gripped by the hand is wider than the proximal end side, and a wave-like finger locking portion 14c is provided on the inner peripheral side thereof.

  5A, 5B, and 5C show a process of fitting the conical cylinder portion 16 into the lower neck portion 3a of the circular head portion 3b of the projecting portion 3. FIG. The height dimension H of the conical cylinder part 16 is formed slightly higher than the height dimension h of the neck part 3a on the lower side of the circular head 3b, and the tip end face 16b is formed by a plane perpendicular to the cylinder axis. First, as shown in FIG. 5 (a), a circular head 3b having a rounded inner diameter surface of the conical cylinder part 16 with the proximal end having a larger inner diameter than the circular head 3b facing down. Contact the outer diameter surface. Next, as shown in FIG.5 (b), the cone cylinder part 16 is pushed down, and the front end side of the cone cylinder part 16 which provided the notch | incision 16a is diameter-expanded with the circular head 3b.

  After that, as shown in FIG. 5C, the conical cylinder portion 16 is further pushed downward, and the conical cylinder portion 16 is fitted into the lower neck portion 3a of the circular head 3b. At this time, since the height dimension H of the conical cylinder part 16 is formed slightly higher than the height dimension h of the neck part 3a on the lower side of the circular head 3b, the conical cylinder part 16 fitted into the neck part 3a is negative. The annular base 12 is firmly fixed to the bottom of the container body 1 without rattling, and the tip surface 16b formed by a plane perpendicular to the cylinder axis of the conical cylinder part 16 has a circular head. It is stably in contact with the lower surface side of 3b in a wide area.

  FIG. 6 shows a state in which the pair of grip portions 14 are bent at each continuous portion 15 so as to be held together. Since these continuous portions 15 are thinly formed in a bent cross section and are curved in a direction opposite to the bending direction, bending stress during bending is not concentrated, and durability against repeated bending can be ensured. In addition, since the weirs 14b having the same height as the depth of the grooves are provided at the two gripping portions in the grooving groove 14a on the mating side surface of the one grip portion 14, a heavy cartridge container filled with a beverage Even if the pair of grip portions 14 gripped together are vertically displaced when hanging upside down, the groove grooves 14a on the mating side surface do not fit in each other, and the hand between them does not fit. The meat of the surface layer is not strongly pinched.

  7 and 8 show modifications of the handle member 11. In this handle member 11, the C-shaped handle portion 14 is provided with a groove 14a extending in the C-shape only on one side, and the opposite mating surface is a flat surface. The difference is that protrusions 14d are provided at two positions of the gripping portion on the surface on the mating side of the one grip portion 14 that has been formed. Other parts are the same as those of the embodiment. Therefore, as shown in FIG. 9, when a heavy cartridge container filled with a beverage is suspended upside down, a gap is formed between the mating side surfaces of the pair of grip portions 14 gripped together. The meat of the surface layer of the hand is not pinched between them.

  FIG. 10 shows a state in which the beverage dispenser cartridge container filled with the beverage is hung upside down and set in the beverage dispenser 21. The container body 1 has a frame-like shape in which the cylindrical mouth portion 2 that is directed downward is connected to a container connecting portion 22 provided on the upper surface of the beverage dispenser 21, and a flexible side wall portion is placed on the beverage dispenser 21. The surroundings are supported by the support 23. The beverage discharged from the tube port portion 2 to the container connection portion 22 falls from the water injection pipe 25 provided with the float valve 24 when the water level in the tank 26 is lowered.

  In the embodiment and the modification described above, the separate handle member has a pair of C-shaped handle portions facing opposite to each other, and the handle portion is bifurcated via a bifurcated base portion and an annular base portion. However, the shape of the handle portion is not limited to that of the embodiment, and any shape may be used as long as it is continuous with an annular base portion having a conical cylinder portion on the inner peripheral side.

  In the above-described embodiment, the container body is flexible in the shape of a square bottle, but the container body can also be formed in a round bottle shape and has rigidity without flexibility. You can also. Further, the container body is not limited to those made of PET, and may be made of a resin that can be stretch blow molded.

DESCRIPTION OF SYMBOLS 1 Container main body 2 Cylinder opening part 3 Protrusion part 3a Neck part 3b Circular head 11 Handle member 12 Annular base part 13 Fork base part 12a, 13a Rib 14 Handle part 14a Groove 14b Weir 14c Finger locking part 14d Projection part 15 Connection part 16 Conical cylinder Portion 16a Cut 16b Tip 21 Beverage Dispenser 22 Container Connection 23 Support 24 Float Valve 25 Water Injection Pipe 26 Tank

Claims (9)

  In the beverage dispenser cartridge container in which the annular base portion of a separate handle member for hanging upside down is attached to the bottom portion of a resin container body that is stretch blow molded from a preform provided with an original protruding portion at the bottom, The preform's original protrusion is molded by the stretch blow molding into a protrusion having a circular head whose diameter is enlarged on the tip side of the small-diameter neck, and on the inner peripheral side of the annular base of the separate handle member, A conical cylinder portion that rises so that the distal end side is inclined inwardly has a base inner diameter that is larger than the circular head, and a distal inner diameter that is smaller than the circular head. Forming a plurality of incisions on the distal end side of the conical cylinder portion, opening in the distal end surface thereof, and enabling the diameter of the distal end portion to be increased, and expanding the distal end side of the conical cylinder portion provided with the notches The circular head of the projecting portion from the proximal end to the conical tube portion A container in which the annular base portion of the handle member is stretch blow molded so that the inner diameter at the tip of the conical cylinder portion having the diameter increased is smaller than the circular head portion after the fitting. A cartridge container for a beverage dispenser, characterized by being attached to the bottom of the main body.   The height dimension of the said cone cylinder part is made higher than the height dimension of the lower neck part of the said circular head, The negative height gap was provided to the cone cylinder part fitted by the said neck part. Cartridge container for beverage dispensers.   The cartridge container for beverage dispensers according to claim 1 or 2, wherein the tip surface of the conical cylinder part is formed by a plane perpendicular to the axial direction of the conical cylinder part.   The separate handle member has a pair of C-shaped handle portions facing opposite to each other, and a bifurcated base portion projecting outwardly from the annular base portion and bifurcated into a bifurcated portion at a phase of 180 °. Provided at two locations, the base ends on both sides of each of the pair of C-shaped handle portions are connected to the tip of one of the bifurcated base portions provided at the two locations, respectively. The cartridge container for a beverage dispenser according to any one of claims 1 to 3, wherein a continuous portion between the proximal end and the distal end of the bifurcated base portion can be bent so that the pair of handle portions are held together.   The means for allowing the connecting portion to bend is formed such that the thickness of the connecting portion in the bent cross section is thinner than both sides, and the connecting portion formed to be thin is bent toward the bottom side of the container body. The cartridge container for a beverage dispenser according to claim 4.   A pair of C-shaped handle portions gripped together is provided with a groove groove extending in the C-shaped direction on the mating side surface, and the groove groove on at least one mating side surface has a height equal to the depth of the groove groove. The cartridge container for beverage dispensers according to claim 4 or 5, wherein a dam is provided.   The cartridge for beverage dispensers according to claim 4 or 5, wherein a surface on the mating side of the pair of grip portions gripped together is a flat surface, and a protrusion is provided on at least one mating side surface of the flat surface. container.   The cartridge container for beverage dispensers according to any one of claims 1 to 7, wherein the separate handle member is formed of the same type of resin as the resin container main body.   The cartridge container for beverage dispensers according to claim 8, wherein the same type of resin that forms a handle member separate from the container body is polyethylene terephthalate.

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