JP3896521B2 - Container with sorting cap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container with a separation cap that is configured by screwing and assembling an outer cap to a separable and removable inner plug body assembled to a housing mouth tube.
[0002]
[Prior art]
Widely used as containers for liquid foods, etc., are constructed by assembling an inner stopper body having a spout into the casing mouth tube by undercut coupling and screwing an outer cap onto the inner stopper body. .
[0003]
Further, in recent years, from the viewpoint of separating and collecting waste, a thin groove-shaped weakening line or thin portion that can be broken is previously formed in the inner plug body, and the weakening line or thin portion is broken at the time of disposal. In addition, those in which the inner plug body can be easily removed from the housing are also used.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional container with a separation cap, since the weakening line and the thin part are provided in the inner plug body, the assembly of the inner plug body with respect to the casing mouthpiece tends to be loosened. When the cap is rotated, the inner plug body rotates together, so that it is not possible to smoothly unscrew the outer cap, and the handling is troublesome.
[0005]
Therefore, the present invention was devised to solve the above-described problems in the prior art, and in a container with a separation cap, it is a technical problem to prevent co-rotation of the inner plug during rotation of the outer cap, Therefore, it is an object to ensure that the outer cap can be screwed open.
[0006]
[Means for Solving the Problems]
Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
A tube with an inner plug body having a spout and a thin weakening line for separation and removal is assembled to the outer periphery of the mouth tube of the housing by undercut coupling, and an outer cap is screwed onto the inner plug body. The container is assembled and assembled;
Between the lower part of the inner peripheral surface of the casing's mouth tube and the lower part of the outer peripheral surface of the fitting tube which is suspended inwardly of the inner tube of the inner plug body and fits closely into the mouth tube. Providing a locking part for preventing co-rotation,
It is in.
[0007]
When the cylinder with the assembly of the inner plug body is assembled on the outer periphery of the mouth tube of the housing, the locking portion provided between the lower portion of the inner peripheral surface of the mouth tube and the lower portion of the outer peripheral surface of the insertion tube of the inner plug body is locked. Therefore, the inner plug is prevented from rotating together during rotation of the outer cap, and the outer cap always performs a reliable screwing and turning operation.
[0008]
Moreover, since the latching part only latches the insertion cylinder lower part of the inner plug body and the mouth cylinder lower part of the casing in the circumferential direction, the weakening line is broken and the inner plug body is separated from the casing. At this time, the engaging portion does not interfere with the sorting operation.
[0009]
The invention according to claim 2 is the invention according to claim 1, in which the locking portion for preventing co-rotation is provided at the locking piece projecting from the lower part of the inner peripheral surface of the mouthpiece and at the lower part of the outer peripheral surface of the fitting cylinder. And a locking groove that can be locked by the locking piece.
[0010]
In the second aspect of the present invention, since the locking piece and the locking groove constituting the locking portion are formed in advance, the locking piece and the locking groove are aligned along the circumferential direction. Thus, the undercut coupling of the inner plug body to the casing tube and the locking of the locking piece and the locking groove can be achieved only by performing a normal plugging process.
[0011]
A third aspect of the invention is the same as that of the first aspect of the invention, wherein a plurality of locking portions for preventing co-rotation are protruded from the lower portion of the inner peripheral surface of the mouth tube so as to bite into the outer peripheral surface of the fitting tube. It is configured by a pointed locking projection piece.
[0012]
In the invention according to claim 3, the locking portion is constituted only by the locking protrusion on the casing side, and the casing and the inner plug body are disposed during the plugging process of the inner plug body with respect to the casing mouth tube. Need not be aligned along the circumferential direction.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 show a first embodiment of the present invention, and an engagement groove 3 for undercut coupling is substantially formed on the outer peripheral surface of a mouth tube 2 erected on the upper end of a housing 1. A neck ring 4 is provided around the central portion, and a neck ring 4 is provided below the center portion, and a locking portion 5 for preventing co-rotation is provided from the lower portion of the inner peripheral surface of the mouth tube 2 to the inner surface of the shoulder portion. A plurality of vertical rib-like locking pieces 6 are formed in a knurled shape.
[0014]
The inner plug body 10 integrally formed of a relatively soft synthetic resin is formed on the inner side of the upper end of the assembled cylinder 11 having an engagement protrusion 12 that is undercut coupled to the engagement groove 3 on the inner peripheral surface. A screw cylinder 14 having a thread 15 engraved on the outer peripheral surface thereof is continuously provided via a wall 13, and a pouring cylinder 16 that forms a spout is erected on the upper inner edge of the screw cylinder 14.
[0015]
The bottom surface of the spout is closed by a mouth wall 17 having an inner portion of the breaking groove 18 as a removal wall portion 19, and the removal wall portion 19 pulls up the pull ring 20 integrally provided on the upper surface when in use. By this, it is broken and removed at the breaking groove 18 portion.
[0016]
Below the screw cylinder 14, a fitting cylinder 21 that is substantially tightly fitted into the casing mouth cylinder 2 is suspended, and the locking piece 6 of the casing 1 can be locked to the lower part of the outer peripheral surface of the fitting cylinder 21. A plurality of locking grooves 22 are formed in a knurled shape.
[0017]
As shown in FIG. 4, the separation / removal mechanism 23 for the inner plug body 10 is provided with a handle portion 24 whose outer surface is accordion-like in a part of the assembled cylinder 11, and a vertical hole 25 is opened on one side of the handle portion 24. At the same time, the lower end portion is connected by the thin portion 26, and a slit 27 continuous to the vertical hole 25 is formed in the top wall 13 portion at the upper end of the handle portion 24, and the top wall 13 portion from the base end of the slit 27. A thin groove-shaped weakening line 28 is provided over substantially the entire circumference.
[0018]
At the time of separation and removal, if the thin portion 26 is broken by picking the tip of the handle portion 24 and pulling it outward, then the handle portion 24 is pulled rearward as it is, and the weakening line 28 is broken to the rear portion. Can be easily removed from the mouthpiece 2.
[0019]
The outer cap 30 is provided with a thread that is threaded into the thread 15 of the inner plug 10 on the upper inner peripheral surface of the peripheral wall 31.
[0020]
FIG. 5 shows a second embodiment of the present invention. A casing 1 made of a hard resin material such as PET so as to bite the locking portion 5 for preventing co-rotation into the outer peripheral surface of the fitting cylinder 21. This is composed of only a plurality of locking projections 6a that are sharply projected on the inner peripheral surface of the mouthpiece 2.
[0021]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the present invention, when the tube with the assembly of the inner plug body is assembled to the outer periphery of the mouth tube of the housing, the space between the inner peripheral surface of the mouth tube and the outer peripheral surface of the insertion tube of the inner plug body Since the locking portion provided in the locking mechanism locks, the rotation of the inner plug body during rotation of the outer cap is prevented, so that the inner plug body provided with a separating / removing means such as a weakening line is always reliable. The screwing operation of the outer cap can be obtained.
[0022]
The locking part only locks the housing and the inner plug in the circumferential direction, and does not participate in the undercut coupling of the inner plug to the housing. The inside plug body is kept in a good separable state.
[0023]
In the invention according to claim 2, since the locking piece and the locking groove of the locking portion are locked only in the circumferential direction, no operating force for locking is required at the time of stoppering, For this reason, the assembly of the inner plug to the housing can be achieved with a normal plugging force.
[0024]
In the invention according to claim 3, since the locking portion can be configured only by the locking protrusion on the side of the casing, the locking portion can be configured very simply, and at the time of plugging, Since the circumferential alignment with the plug is unnecessary, the operation is simplified.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an inner plug body and an upper part of a housing, showing a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
3 is a front view of the inner plug body in the embodiment shown in FIG. 1. FIG.
4 is a perspective view of an inner plug body and an outer cap in the embodiment shown in FIG. 1. FIG.
FIG. 5 is a perspective view of the upper part of the housing, showing a second embodiment of the present invention.
[Explanation of symbols]
1; Housing 2; Mouth tube 3; Engaging groove 4; Neck ring 5; Locking portion 6; Locking piece 6 a; Locking protrusion 10; Medium plug 11; Assembly tube 12; Top wall 14; screw cylinder 15; screw 16; dispensing cylinder 17; mouth wall 18; breaking groove 19; removal wall 20; pull ring 21; fitting cylinder 22; locking groove 23; separation removal mechanism 24; 25; vertical hole 26; thin portion 27; slit 28; weakening line 30; outer cap 31;

Claims (3)

A tube (11) with an inner plug (10) with a spout and a thin weakening line ( 28 ) for separation and removal is undercut on the outer periphery of the mouth tube (2) of the housing (1) A container which is assembled by coupling and is configured by screwing and assembling an outer cap (30) to the inner plug (10), and an inner peripheral surface of the mouth tube (2) of the casing (1) and lower, are suspended set inwardly of said set with barrel (11), between the outer peripheral surface lower portion of the insertion tube (21) that fits substantially closely to the mouth tube (2), wherein in the plug body (10) A container with a separation cap provided with a locking portion (5) for preventing co-rotation. The locking portion (5) for preventing co-rotation is formed on the locking piece (6) projecting from the lower inner peripheral surface of the mouth tube (2) and on the lower outer peripheral surface of the fitting tube (21), The container with a separation cap according to claim 1, comprising a locking groove (22) in which the locking piece (6) can be locked. A plurality of sharpened locking protrusions projecting from the lower part of the inner peripheral surface of the mouth tube (2) so that the locking portion (5) for preventing co-rotation is inserted into the outer peripheral surface of the fitting cylinder (21). The container with a separation cap according to claim 1, which is constituted by (6a).

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