Tube container

Abstract

To create a tube container in which leakage of a content at the time of closure can be easily detected by having only one sealing point to be controlled.SOLUTION: A tube container comprises: a tube body 10 that includes a spout projection part 14 connected to a tip of a mouth part 13 that stands up on an upper end of a trunk part 11 via a shoulder part 12 and having a spout hole 15 formed in a center; a cap body 21 having a top wall part 22 and attached to the mouth part 13; and a lid body 26 that closes an upper surface side of the top wall part 22. A sealing plug 27a is formed on the inner surface of the lid body 26 to close the spout hole 15, a through hole 22a is formed on the top wall part 22 so that the spout projection part 14 projects to the upper surface side of the top wall part 22, and when the lid body 26 is closed, the sealing plug 27a is inserted into the spout hole 15 of the spout projection part 14 projecting from the through hole 22a.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a tube container.

Background Art

[0002] A tube container is known that includes a tube body having a pouring hole provided in a mouth portion erected via a shoulder at the upper end of a body portion, a cap body having a discharge nozzle communicating with the pouring hole and attached around the mouth portion, and a lid body provided with a sealing plug connected to the cap body via a hinge and closing the discharge nozzle when closed (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above tube container, in order to prevent leakage of the contents when closed, there is a problem that it is necessary to manage two sealing portions between the cap body and the mouth portion and between the discharge nozzle and the sealing plug.

[0005] An object of the present invention is to create a tube container in which leakage of the contents when closed can be easily detected by making the number of sealing portions to be managed one in order to solve the problems in the above-described conventional technology.

Means for Solving the Problems

[0006] Among the means for solving the above problems, the main means of the present invention is A tube container comprising: a tube body having a spout that extends upward from the upper end of the body via a shoulder portion, and a dispensing projection that is arranged in a substantially conical shape toward the upper end and has a dispensing hole formed in the center; a cap body having a top wall portion that is attached to the spout; and a lid that closes the upper side of the top wall portion, A sealing plug is formed on the inner surface of the lid to close the dispensing hole, and a through hole is formed in the top wall portion to allow the dispensing projection to protrude toward the upper surface of the top wall portion. The aforementioned cap book Move your body forward Note Tube Book body The aforementioned port department When installed, the through hole The inner surface is facing forward Note protruding part roughly conical On the outside By circumscribing Set to a state with no gaps. I did it that way. It is characterized by the following: In the main means of the present invention, the number of sealing points to be managed can be reduced to a single point where the sealing plug enters the through-hole, making it easy to detect leakage of contents when closed.

[0007] Another means of the present invention is to add to the main means of the present invention described above the means that the lid and the cap body are connected via a hinge. The above method allows for the integral molding of a cap comprising a lid and a cap body. Another means of the present invention is to add to any of the above means that a male screw (16) is formed on the mouth portion (13) and a female screw (24a) that screws into the male screw (16) is formed on the cap body (21) side.

[0008] Another means of the present invention is that, in any of the above means, the outer cylinder portion of the cap body has a recessed recess and a locking projection that protrudes radially outward on the side surface of the recessed recess, and the lid has a locking hole and a swinging piece that can be fitted into the recessed recess. The invention further includes a locking mechanism that maintains the closed lid state by engaging the locking projection and the locking hole when the lid is closed and the swing mechanism is fitted into the recessed recess. The above method can prevent unintended opening and closing of the lid. [Effects of the Invention]

[0009] In this invention, since the number of seals that need to be managed is reduced to one, leakage of contents during closure can be easily detected. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view of a tube container showing one embodiment of the present invention. [Figure 2] This is a cross-sectional view of a tube container. [Modes for carrying out the invention]

[0011] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a perspective view of a tube container showing one embodiment of the present invention, and Figure 2 is a cross-sectional view of the tube container.

[0012] As shown in Figures 1 and 2, the tube container 1 is composed of a synthetic resin tube body 10 that contains the contents and a synthetic resin cap 20 provided at the top of the tube body 10. The tube body 10 is formed having a cylindrical elastic compressible body portion 11, a shoulder portion 12 connected to the upper end of the body portion 11 and gradually tapering in diameter from the outer diameter of the body portion 11, a cylindrical mouth portion 13 integrally erected on the upper part of the shoulder portion 12, and a dispensing projection 14 that is connected to the mouth portion 13 towards the upper end in a roughly conical shape and has a dispensing hole 15 drilled in the center. A male screw 16 is integrally screwed onto the outer surface of the mouth portion 13.

[0013] The cap 20 is formed by having a cap body 21 that is attached to the opening 13 on the tube body 10 side, and a lid 26 that is connected to the cap body 21 by being integrally molded via a thin hinge 25.

[0014] The cap body 21 is a capped cylindrical member including a top wall portion 22 and an outer cylindrical portion 23 hanging down from the outer peripheral edge of the top wall portion 22, and an inner cylindrical portion 24 is hanging down on the lower surface of the top wall portion 22. A through hole 22a penetrating toward the inside of the inner cylindrical portion 24 is provided at the center of the top wall portion 22, and an internal thread 24a that can be screwed into the external thread 16 on the spout portion 13 side is screwed on the inner peripheral surface of the inner cylindrical portion 24.

[0015] The inner diameter of the through hole 22a is formed to be larger than the outer diameter dimension of the tip (upper end) of the pouring protrusion 14 and smaller than the outer diameter dimension of the base end (lower end) of the pouring protrusion 14. Further, the inner peripheral surface of the through hole 22a is formed to have a tapered shape that reduces in diameter from the lower surface side to the upper surface side of the top wall portion 22, and in a state where the pouring protrusion 14 is inserted into the through hole 22a, it is configured so that the inner peripheral surface of the through hole 22a and the pouring protrusion 14 formed in a substantially conical shape can face each other without a gap.

[0016] One end of a hinge 25 is integrally connected to a position on the back side (left side in FIG. 2) of the upper outer periphery of the outer cylindrical portion 23. Further, a recessed concave portion 23A that sinks inward in the radial direction is formed at a position on the opposite side (front side) that is axisymmetric with the hinge 25 with respect to the container axis O, and at an intermediate position in the height direction of the side surface of the recessed concave portion 23A, an undercut-shaped locking convex portion 23a having a predetermined width in the circumferential direction and protruding outward in the radial direction is protruding.

[0017] The lid body 26 is formed in a capped cylindrical shape having a top wall portion 27 and a side wall portion 28 hanging down from the outer peripheral edge of the top wall portion 27. At the center of the inner surface of the top wall portion 27, a short columnar sealing plug 27a that is inserted into the pouring hole 15 in the closed lid state protrudes, and a contact ring 27b that can contact the tip surface of the pouring protrusion 14 protrudes around it.

[0018] The other end of the hinge 25 is integrally connected to the side wall portion 28 at the rear side, which is the lower outer circumference when the lid is closed. A pivoting piece 29, which can be fitted into the recessed recess 23A on the cap body 21 side, is integrally connected to the lower outer circumference of the side wall portion 28 on the opposite side (front side) of the hinge 25 via a thin-walled connecting portion 29a. The pivoting piece 29 has a locking hole 29A into which the locking projection 23a can be inserted and locked, and is connected so as to be able to pivot radially when the lid is closed, with the thin-walled connecting portion 29a as a pivot point.

[0019] Next, the usage and effects of this embodiment will be described. In this embodiment, to attach the cap 20 to the tube body 10, as shown in Figure 2, the inner cylindrical portion 24 of the cap body 21 is attached to the mouth portion 13 of the tube body 10. At this time, with the dispensing projection 14 inserted into the through hole 22a and protruding from the upper surface of the top wall portion 22, the female thread 24a of the cap body 21 is screwed into the male thread 16 on the tube body 10 side and screwed downward to set it in the attached state. As a result, the inner circumferential surface of the through hole 22a is set to have no gap with the outer surface of the dispensing projection 14 which is formed in a substantially conical shape, so that the contents that leak from the dispensing hole 15 can not enter the gap between the through hole 22a and the dispensing projection 14.

[0020] Next, as shown in Figure 2, when the lid 26, which is in the open state as shown by the dashed line, is rotated around the hinge 25 to the closed state as shown by the solid line, the sealing plug 27a is inserted into the dispensing hole 15 of the dispensing projection 14 that protrudes through the through hole 22a, thereby sealing the dispensing hole 15 (sealed state).

[0021] Next, in the closed lid state, when the pivot piece 29 is tilted radially inward from the position indicated by the dashed line to fit into the recessed recess 23A, the locking projection 23a enters into the locking hole 29A and locks in place, thereby setting the lid 26 to a locked state that prevents opening and closing. In other words, the locking projection 23a and the locking hole 29A constitute a locking mechanism that maintains the closed lid state of the tube container 1.

[0022] To dispense the contents from the locked tube container 1, the reverse operation described above is performed. That is, by tilting the pivot piece 29 radially outward as shown by the dashed line, the locking projection 23a and the locking hole 29A are released, and the lid 26 is opened and closed, resulting in an unlocked state. Next, the front side of the lid 26 (the side on which the pivot piece 29 is formed) is lifted around the hinge 25, changing it from the closed state shown by the solid line to the open state shown by the dashed line. At this time, as the lid 26 rotates upward, the sealing stopper 27a is dislodged from the dispensing hole 15, allowing the dispensing hole 15 to be set to a dispensing-ready state (unsealed state). Then, by squeezing the body 11 of the tube container 1 in this dispensing-ready state, the contents (not shown) contained in the body 11 can be dispensed outwards from the dispensing hole 15.

[0023] In the present invention, it is not necessary to manage the seal state between the inner cylinder portion 24 on the cap body 21 side and the opening portion 13 on the tube body 10 side, as in the conventional method. Instead, it is only necessary to manage the seal state at one point, between the dispensing hole 15 and the sealing stopper 27a, making it easy to prevent leakage of contents when the lid is closed.

[0024] The configuration and effects of the present invention have been described above in accordance with the examples, but the embodiments of the present invention are not limited to the above examples. For example, in the above embodiment, a configuration in which the lid 26, hinge 25, and cap body 21 are integrally molded was shown and described, but the present invention is not limited to the above embodiment, and a configuration in which the hinge 25 is not present and the lid 26 and cap body 21 are formed separately is also possible.

[0025] Furthermore, in the above embodiment, the cap 20 was described as being attached to the tube body 10 by screwing together a male thread 16 screwed into the opening 13 and a female thread 24a screwed into the inner circumferential surface of the inner cylinder 24. However, the present invention is not limited to the above embodiment, and the cap may be attached by a locking ring formed on the outer circumferential surface of the opening 13 engaging between two upper and lower engaging rings formed on the inner circumferential surface of the inner cylinder. [Industrial applicability]

[0026] This invention can expand the range of applications in the field of tube containers to an even broader area. [Explanation of Symbols]

[0027] 1: Tube container 10: Tube body 11: Torso 12:Shoulder 13: Mouth 14: Dispensing protrusion 15: Output hole 16: Male screw 20: Cap 21: Cap body 22:Top wall part 22a: Through hole 23: Outer cylinder 23A: Depressed / Indented 23a: Locking protrusion 24: Inner cylinder 24a: Female thread 25: Hinge 26: Lid 27: Top and Wall Section 27a: Sealing plug 27b: Contact ring 28: Side wall section 29: Oscillating piece 29A: Locking hole 29a: Thin connection part O: Container axis

Claims

1. A tube container comprising: a tube body (10) having a mouth portion (13) erected at the upper end of a body portion (11) via a shoulder portion (12), and a dispensing projection (14) that is arranged in a substantially conical shape toward the upper end and has a dispensing hole (15) formed in the center; a cap body (21) having a top wall portion (22) that is attached to the mouth portion (13); and a lid (26) that closes the upper side of the top wall portion (22), A sealing plug (27a) that closes the dispensing hole (15) is formed on the inner surface of the lid (26), and a through hole (22a) is formed in the top wall portion (22) that causes the dispensing projection (14) to protrude toward the upper surface of the top wall portion (22). A tube container characterized in that when the cap body (21) is attached to the opening (13) of the tube body (10), the inner circumferential surface of the through hole (22a) is in contact with the substantially conical outer surface of the dispensing projection (14), thereby creating a gap-free state.

2. The tube container according to claim 1, wherein the lid (26) and the cap body (21) are connected via a hinge (25).

3. The tube container according to claim 1 or 2, wherein a male thread (16) is formed on the mouth portion (13), and a female thread (24a) that screws into the male thread (16) is formed on the cap body (21) side.

4. The outer cylindrical portion (23) of the cap body (21) has a recessed recess (23A) and a locking projection (23a) that protrudes radially outward on the side surface of the recessed recess (23A), and the lid (26) has a locking hole (29A) and a swinging piece (29) that can be fitted into the recessed recess (23A) is formed therein. The tube container according to claim 1 or 2, wherein a locking mechanism is provided that maintains a closed lid state by locking the locking projection (23a) and the locking hole (29A) together when the lid (26) is closed and the swinging piece (29) is fitted into the recessed recess (23A).

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