JP3037370U - Tube container for filling mucus products - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fill a thin and flexible cylindrical body of a synthetic resin tube container with mucus from an open rear end thereof and to seal the rear end portion after filling, thereby preventing defective products. Prevent production. SOLUTION: A hard shoulder barrel frame 1 made of synthetic resin and having a filling port 13 having a diameter larger than a filling nozzle 27 for a mucus product.
2 and a thin, flexible, heat-sealable synthetic resin cylinder body 1 having the shoulder opening frame attached to the front end and the rear end sealed.
1, a synthetic resin-made hard tube head 14 having a small-diameter squeezing port 15 at its tip and attached to the filling port of the shoulder barrel frame, and a synthesis that removably closes the squeezing port of the tube head. A tube container is constituted by the hard cap 17 made of resin.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a synthetic resin tube container suitable for filling mucus such as an adhesive.

[0002]

[Prior art]

 As described in Japanese Patent Publication No. 6-41307 (Japanese Patent Application Laid-Open No. 63-22354) filed by the applicant of the present utility model, the squeezed tube made of synthetic resin has a small diameter that is covered with a screw lid or the like. The product consists of a hard tube head molded from a synthetic resin in the shape of a umbrella with a squeeze port on the top, and a thin, flexible synthetic resin cylinder connecting this tube head to the front end. The inside of the barrel is filled from the open rear end of the barrel, and then the rear end is heat-sealed to seal or the rear end of the barrel is sealed. inject.

[0003]

[Problems to be solved by the device]

 In the case of liquid products with high fluidity and good drainage, after filling from the open rear end of the barrel as described above, the rear end may be heat-sealed and sealed. After sealing the rear end, it is possible to inject from a small-diameter squeeze port, but in the case of mucus that has poor fluidity such as adhesive and is difficult to drain, it should be squeezed from a small squeeze port. Since it is difficult to inject, it is necessary to fill the inside of the barrel from the open rear end with a filling nozzle and heat seal the rear end after filling. In that case, if the mucus hanging down from the filling nozzle adheres to the inner surface of the rear end of the barrel that should be heat-sealed, even if it is heat-sealed, the part where the mucus adheres cannot be sealed by the mucus and the mucus is squeezed out. If you press the barrel to squeeze it out of your mouth, the mucus will leak out from the unsealed portion of the rear end of the barrel, resulting in a bad product. Therefore, even if the mucus is filled at all, the tube container must be discarded for each mucus filled inside, and the tube container and the filled mucus are wasted.

[0004]

[Means for Solving the Problems]

 The present invention relates to a tube container for solving the above-mentioned problems, and includes a rigid shoulder mouth tube frame made of synthetic resin having a filling port having a diameter larger than that of a filling nozzle for a mucus product, and the shoulder mouth tube frame at the front end. It has a thin, flexible, heat-sealable synthetic resin cylinder whose rear end is sealed, and a small diameter squeeze port at the tip, which is made of synthetic resin and is attached to the filling port of the shoulder mouth tube frame. It is characterized by a rigid tubular tube head and a hard synthetic resin cap that detachably closes the squeezing port of the tube head.

[0005]

【Example】

 In each figure, 11 is a thin, flexible, heat-sealable synthetic resin cylinder, 12 is a synthetic resin hard shoulder mouth cylinder having a filling port 13 having a diameter larger than that of a mucus product filling nozzle, 14 Has a small diameter squeeze port 15 at the tip and is made of a synthetic resin hard tubular tube head that is attached to the filling port 13 of the above-mentioned shoulder mouth tube frame, and 17 is a synthetic resin that is attached over the squeeze port 15 of the above tube head. The hard cap of is shown. The synthetic resin forming the barrel 11, shoulder mouth frame 12, tube head 14, and cap 17 may be any synthetic resin as long as it has corrosion resistance to the mucus product filled by the filling nozzle.

The shoulder mouth tube frame has a shoulder 12 ′ that extends in a conical shape from the lower end of the filling port 13, and the filling port 13 has a male screw on the outer circumference. Further, the tube head is provided with a cylindrical portion 16 on the lower side thereof, and on the inner periphery thereof, there is an enlarged diameter portion 16 'having a female screw thread-engaging with the male screw of the filling opening. When it is put on the outside of 13 and screwed in, the upper end of the filling port comes into contact with the step portion 16a at the upper end of the expanded diameter portion 16 'to seal the filling port. The tube head has an upward conical portion 14 'on a cylindrical portion 16, and a tapered squeeze outlet 15 having a diameter decreasing upward from the top of the conical portion and having an external thread on the outer circumference is provided. The cap 17 is composed of an outer cylinder 17a and an inner cylinder 17b, which are connected at the upper end, and the inner circumference of the cylinder 17b is tapered corresponding to the tapered squeeze opening 15 and is engaged with a male screw on the outer circumference of the squeeze opening. It has a female screw. Further, on the upper surface of the inner cylinder 17b, a protrusion 17 'protruding from above is provided at the upper end portion of the squeezing opening 15. When the inner cylinder 17b of the cap is screwed onto the squeeze port and attached, the protrusion 17 'projects into the upper end of the squeeze port 15 from above to close the squeeze port, and at the same time, the upper end of the squeeze port 15 has the above-mentioned protrusion. 17 'and the upper end of the inner cylinder 17b are bitten, and the squeeze port is sealed.

In the case where the viscous liquid is an adhesive containing an organic solvent, for example, the cylinder body 11 has adhesive layers on both inner and outer surfaces of a saponified ethylene vinyl acetate copolymer (Kuraray Co., Ltd., trade name EVAL), which is abbreviated as EVAL. , A thickness of a five-layer structure in which a polyethylene layer is provided via a polyethylene adhesive (manufactured by Mitsui Petrochemical Industry, trade name Admer) 0.15 to 0. Even if it is formed by extruding about 18 mm into a cylindrical shape by an extrusion molding method, the flexible sheet with the above-mentioned five-layer structure is made, and this is rolled into a cylindrical shape, and the seams that overlap vertically are heat-sealed to make a thin flexible sheet. A cylindrical barrel may be formed.

Further, when the shoulder mouth tube frame 12 fixed to the front end of the barrel is polyethylene which is located on the inner surface of the barrel as described above, it is similarly molded with polyethylene. These polyethylenes may be any of low density polyethylene (LD / PE), high density polyethylene (HD / PE), and linear low density polyethylene (L-LD / PE).

The shoulder mouth tube frame 12 is made of, for example, low density polyethylene, the tube head 14 is made of EVAL, and the cap 17 is made of polyethylene, for example, and the shoulder 12 ′ of the shoulder mouth tube frame is formed by injection molding at the front end portion of the barrel 11. Inserted in the inner circumference, the front end 11 'of the cylinder body 11 and the shoulder 12' of the cylinder frame are roasted with gas flame, and the front end 11 'of the cylinder body 11 is collapsed onto the shoulder 12', and then the shoulder 12 ' The front end portion 11 'of the tube body 11 which is fused and then, if necessary, falls down on the shoulder 12' and is fused, is formed by means of high-frequency sealing, high-frequency induction heating sealing, ultrasonic sealing, impulse heat sealing, or the like. The shoulder mouth cylinder frame 12 may be fixed to the front end of the cylinder body by pushing it and making it bite over the shoulder 12 '.

Further, as described above, a thin and flexible tube having a required length formed by extruding into a cylindrical shape, rolling a flexible sheet into a cylindrical shape, and heat-sealing a seam that overlaps the upper and lower sides. As shown in FIG. 3, the barrel 11 is fitted to a core 21 having a circular cross section, which has the same inner and outer diameters as the barrel and has an inner mold 22 for molding the inner surfaces of the filling port 13 and the shoulder 12 'at its upper portion. The left and right splits are inserted between the left and right split dies 23L and 23R provided with the molding portion 24 for molding the outer surfaces of the filling port 13 and the shoulder 12 'and the surrounding portion 25 surrounding the outer circumference of the barrel. Molten polyethylene is injected from the gate 26 provided in one of the molds into the cavity 23 for forming the shoulder mouth tube frame, the shoulder mouth tube frame 12 is integrally molded and fixed to the front end portion 11 'of the barrel body 11, and the split bar is attached. The molds 23L and 23R may be opened, and the core 21 may be pulled out and taken out.

In this way, when the shoulder mouth tube frame 12 is fixed to the front end of the barrel 11, the rear end of the barrel is folded and flattened into a single letter, and the polyethylene on the inner and outer circumferences of the barrel is heated. Seal and close to the bottom 18, and insert the filling nozzle 27 of the mucus product, for example, the adhesive 28 into the inner periphery of the filling port 13 of the shoulder mouth cylinder frame facing upward, and from the filling nozzle to the inside of the barrel 11. Inject and fill a specified amount of product. Then, as described above, the outer circumference of the filling mouth of the shoulder mouth tube frame is covered with the expanded diameter portion of the inner circumference of the cylindrical portion 16 of the tube head and screwed to seal the filling mouth, and the cap 17 is attached to the outer circumference of the squeezing mouth of the tube head. Cover with a screw and seal the squeeze outlet. A cap for sealing the squeeze port may be pre-screwed and attached to the tube head before the tube head is screwed onto the outer circumference of the shoulder mouth tube frame to seal the filling port. To take out the mucus product filled in the barrel, the cap 17 may be removed, and the barrel product may be pressed to squeeze out the mucus product from the squeeze port 15 of the tube head 14.

When the tube head screwed onto the outer circumference of the filling mouth 13 of the shoulder mouth tube frame is accidentally removed and the cylinder body is pressed, a large amount of the mucus product inside flows out from the filling mouth 13, so that the mucus is filled by the filling nozzle. After the product is filled into the barrel, screw the inner circumference of the tube head cylindrical part onto the outer circumference of the filling port 13 to apply adhesive or heat seal the tube head cylindrical part and the filling port after screwing. It is preferable that the tube head be fixed by welding so that the tube head cannot be removed from the filling port.

Further, for the same reason, the inner circumference of the cylindrical portion of the tube head and the outer circumference of the filling opening of the shoulder mouth tube frame are not coupled by screw engagement, and the cylindrical portion of the tube head is fitted to the outer circumference of the filling opening. Alternatively, they may be fitted to each other and bonded or welded by heat sealing.

[0014]

[Effect of the invention]

 As is clear from the above, according to the present invention, the shoulder mouth tube frame 12 having the large opening 13 for inserting the filling nozzle for injecting and filling the mucus product is fixed to the front end of the thin and flexible barrel 11. Therefore, after closing the rear end of the barrel 11, the mucus product filling nozzle can be inserted into the filling port of the shoulder mouth barrel to fill the barrel with a predetermined amount of mucus product. After the filling, a tube head that is closed by a cap may be attached to the filling port of the shoulder mouth tube frame to close the filling port. Therefore, it is possible to completely eliminate the waste of the tube container and the filled mucus product when filling the mucus product from the open portion of the barrel.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which mucus is being filled into a cylindrical body from a filling port by a filling nozzle, and an exploded front view in which a tube head and a half of a cap are sectioned.

FIG. 2 is a front view of a product in which a cylinder body is filled with mucus, and a half of a product in a state where a tube head and a cap are attached is shown.

FIG. 3 is a front view of a half of a state in which a shoulder / mouth cylinder frame is integrally formed at a front end portion of the cylinder body.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 barrel body 11 ′ front end of barrel body 12 shoulder barrel frame 13 shoulder barrel frame filling port 14 tube head 15 tube head squeezing port 16 tube head cylinder part 17 cap 27 mucus filling nozzle 28 mucus

Claims (1)

[Utility model registration claims] 1. A hard shoulder opening cylinder frame made of synthetic resin having a filling port having a diameter larger than that of a filling nozzle for a mucus product, and the shoulder opening cylinder frame is attached to a front end and a rear end is hermetically sealed and flexible,
A heat-sealable synthetic resin cylindrical body, a synthetic resin hard cylindrical tube head having a small-diameter squeeze port at the tip and attached to the filling port of the shoulder barrel frame, and squeezing the tube head A tube container for filling a mucus product, comprising a hard cap made of a synthetic resin that removably covers a mouth.