JP2012051617A - Dispensing device for container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dispensing device capable of easily breaking a break line by attaching an inner stopper into a dispense tube via the breaking line, and providing a ratchet mechanism between the inner stopper and a cap body, and tilting the inner stopper while rotating it.SOLUTION: The dispensing device for a container having a dispense tube 8 using an end surface as a dispense port 12 includes: a main tube 2 attachable to a container body; the inner stopper 24 which is connected to the inner peripheral surface of the main tube 2 via the breaking line 22 and has and having an end 24b protruded outside; and a cap body 40 having a base half part 42a of its cap peripheral wall which is threadedly engaged with the dispense tube 8 and connects an end half 42b to the outer peripheral part of a top wall 44. Between the end half 42b and the end 24b of the inner stopper, a ratchet mechanism R is provided to inhibit turning of the cap body in the opening direction relative to the inner stopper. The mechanism is constituted of first protruding rows 60 arrayed over the entire circumference of one of the inner peripheral surface of the end half 42b of the cap peripheral wall and the outer peripheral surface of the end 24b of the inner stopper at an equal angle and second recessed rows 62 arrayed over a peripheral length part except for one side part of the other at an equal angle.

Description

  The present invention relates to an extraction tool for containers (for example, for liquid containers).

As a pouring tool for a liquid container, it has a main pipe provided with an attachment to the mouth of the container body in the middle part of the cylinder wall, and this main pipe has a break line at the lower end of the peripheral wall of the top cylinder-shaped lid. The sealing ring attached is attached and a ratchet mechanism is provided on the inner peripheral surface of the sealing ring and the outer peripheral surface of the main pipe, which can be turned in the closing direction but cannot be turned in the opening direction. Is known (Patent Document 1).
In addition, in order to improve the liquid tightness of the container, when a bottomed cylindrical stopper is fitted into the container's pouring cylinder and the cap is further fitted to the upper part of the container, There is known a structure in which a hanging connecting cylinder is inseparably coupled to the plug body and the plug body moves to the cap side when the cap is removed again (Patent Document 2).

JP 2008-308193 A JP 2010-052810 A JP 2006-125576 A

  When it is necessary to further improve the sealing property in the container structure of Patent Document 1, it is advantageous to introduce the plug as described above. However, if the plug body is formed separately from the dispensing cylinder as in Patent Document 2, the number of parts increases, which is not preferable.

On the other hand, it is conceivable to form the pouring tube and the plug body into an integral product that can be separated through a break line (thin wire), but in this case, it is difficult to design the thickness of the break line appropriately. . If the wall thickness is too small, the sealing performance may be unexpectedly impaired.If the wall thickness is too large, a large force may be required for the breaking operation, or the breaking line may not be completely broken. is there.

The applicant has studied this problem earnestly, and by omitting the teeth or a part of the claw row of the ratchet mechanism and the claw row, the inner plug is tilted in addition to the turning force that is the original function of this mechanism. I came up with a structure to make.
The claw row has an elastic plate structure that is elastically deformed in the radial direction in one direction of rotation and can get over the tooth row, and the tooth row is formed by a convex portion that does not substantially elastically deform.

  Such a device is not found in the prior art. For example, there is a gear with a part of the gear missing (Patent Document 3). This is a mechanism in which the transmission of power is temporarily interrupted when the driven portion that meshes with the gear faces the tooth missing portion. There is no idea of applying another force by creating a tooth or nail defect.

  An object of the present invention is a pouring tool in which an inner plug is integrally formed on the inner peripheral surface of a main pipe via a breaking line, and a ratchet mechanism is provided between the inner plug and a lid body. In other words, it is possible to easily break the breaking line by combining forces other than the transmitted rotational force.

The first means includes an extraction pipe portion 8 having a distal end surface as an outlet 12, and a main pipe 2 that can be attached to a container body;
An inner plug 24 connected to the inner peripheral surface of the extraction pipe portion 8 via a breaking line 22 and having a tip portion 24b protruding outward through the outlet 12;
A lid in which a base half portion 42a of the lid peripheral wall is screwed into the extraction pipe portion 8 and a front half portion 42b of the lid peripheral wall is connected to the outer peripheral portion of the top wall 44, and a stopper 52 is provided inside. Body 40,
A ratchet mechanism R that allows the closing of the lid 40 with respect to the inner plug 24 in the closing direction and disables the rotation in the opening direction between the front half 42b of the lid peripheral wall and the tip 24b of the inner plug. In the pouring tool for containers provided so that the breaking line 22 is broken by forcibly turning the lid 40 in the opening direction,
The ratchet mechanism R is a first convex array that is equiangularly arranged at a constant angle over the entire peripheral length of the inner peripheral surface of the front half portion 42b of the cover peripheral wall and the outer peripheral surface of the front end portion 24b of the inner plug. 60, is formed by the second convex columns 62 conformally arranged at an angle over the circumferential length portion excluding the area of one side of the other circumferential surface as the convex portions omitted area a _2.

  This means proposes to omit the latter convex portion of the first convex row 60 and the second convex row 62 constituting the ratchet mechanism between the lid peripheral wall and the inner plug shown in FIG. In a normal ring ratchet mechanism, only a rotational force acts around the central axis. This is because the inner plug receives two forces (couple force) of the same size and opposite directions from the convex portion on the lid peripheral wall side existing at two locations facing each other across the central axis. In the present invention, by omitting the convex portion in a part of the circumferential direction, one of the forces to be applied to both side portions of the inner plug is eliminated, and the force acting on the other functions to tilt the inner plug. As a result, the break line forming portion is distorted in the vertical direction, and stress is concentrated on a specific portion, thereby ensuring breakage of the break line.

  The first convex row and the second convex row have a structure in which one convex portion can get over the other convex portion in the closing direction of the lid body and cannot get over in the opening direction (for example, a tooth row and a nail row). do it. As an aspect of the arrangement of each convex row, there may be a case where the second convex row in which a part of the convex portion is omitted is formed on the cover peripheral wall side and a case where the second convex row is provided on the inner plug side. There are four cases because there are cases where the nail and the nail row are used. As described later, the “convex portion omitted area” is defined as a portion excluding the convex portion forming area (the portion of the arc including the convex portion) on the other peripheral surface.

The second means includes the first means, and the entire area of the other peripheral surface is omitted from the arc-shaped convex portion forming area including the second convex portions 62a of the second convex row 62 and the convex portions. and divided into an area a _2, and the circumferential length of the convex portions omitted area than 1/4 of the other peripheral surface entire circumferential length of the.

  In this means, it is proposed that the convex portion omission area is ¼ or less of the entire circumference of the other circumferential surface. That is, it means that the entire circumference is divided into four areas, and the convex portion is omitted in one of them. The number of convex portions corresponding to one area is not limited to one. FIG. 7 shows an example in which the number of convex portions in one area is plural.

  The third means includes the first or second means, and one of the first convex row 60 and the second convex row 62 is a tooth row, and the other is a nail row.

  This means confirms the structure of the ratchet. That is, you may abbreviate | omit either the tooth row | line | column and nail | claw row | line | column which comprise a ratchet. This is because the action is the same in that the one-way force works instead of the couple because the teeth and the claws do not contact each other. In other words, the protrusions that do not have the function of engaging the protrusions between the first protrusion and the second protrusion (overcoming in the closing direction and locking in the opening direction) are the protrusions referred to in the present application. Not a part. Even if there is a projection having a purpose different from the ratchet teeth and the claw in a portion corresponding to the convex portion omitted area of the present application, the function of the convex portion omitted area is not impaired.

  According to the invention relating to the first means, the ratchet mechanism R is formed by the first convex row 60 and the second convex row 62 respectively arranged on the peripheral surfaces on the lid peripheral wall side and the inner plug side, and the second convex With respect to the rows, the convex portions are omitted from a part of the peripheral surface, so that a rotational force and a tilting power can be applied to the inner plug, and the breaking of the breaking line can be ensured.

According to the invention according to the second means, since the convex portions omitted area A ₂ and 1/4 or less of the total circumferential length of the circumferential surface, can be imparted efficiently tilting forces inside plug.

  According to the invention relating to the third means, since one of the first convex row 60 and the second convex row 62 is a tooth row and the other is a claw row, the engagement of each convex row can be ensured.

It is a longitudinal cross-sectional view of the extraction tool which concerns on 1st Embodiment of this invention. It is a cross-sectional view of one principal part of the extraction tool of FIG. It is a longitudinal cross-sectional view of the principal part of the extraction tool of FIG. It is the simplified schematic cross-sectional view for demonstrating the effect | action of the extraction tool of this invention. It is a longitudinal cross-sectional view corresponding to FIG. It is a longitudinal cross-sectional view which shows the other step of the extraction tool of FIG. It is a cross-sectional view which shows the modification of this invention.

  1 to 3 show a dispensing tool 1 according to a first embodiment of the present invention. The pouring tool is composed of a main pipe 2, an inner plug 24, and a lid body 40. Each of these members can be formed of a synthetic resin unless otherwise specified.

  In the illustrated example, the main pipe 2 has an intermediate portion of the main pipe 2 as a flange portion 4 that is an attachment portion of the container body 80 to the mouth-neck portion, and is used to project the suction pipe portion 6 for insertion into the container body and the container body outward. The extraction pipe portion 8 is provided.

  The base end face (lower end face) of the main pipe 2 is a suction port 10, and the front end face (upper end face) of the main pipe 2 is a spout 12. In the illustrated example, the auxiliary suction port 11 is opened near the lower part of the intermediate part (below the flange part 4).

  Above the extraction pipe portion 8, a screw portion 14 is formed on the outer surface thereof except for an upper end portion 9 located above a break line which will be described later. Further, a locking collar portion 15 is formed slightly below the screw portion.

  The inner plug 24 is integrally connected to the inner peripheral surface of the dispensing pipe portion 8 via a break line 22. The fracture line 22 is formed in a fragile but sealing structure, for example, a thin line.

  The inner plug 24 is formed of a base portion 24a and a tip portion 24b. The base portion 24a in the illustrated example is formed by connecting the upper end side of the plug cylinder 26 to the outer peripheral portion of the plug plate 28 that closes the spout 12 through a tapered shoulder portion having a small tip. It is made to continue to the above-mentioned fracture line 22.

  The inner plug tip 24b has a connecting cylinder 34 which is smaller in diameter than the plug cylinder and is open at the upper end from the outer peripheral part of the plug plate, and a retaining rib is provided around the connecting cylinder. ing.

  The lid body 40 connects the top end (tip) of the lid peripheral wall 42 to the top wall 44. A half part (base half part 42 a) on the base end side of the cover peripheral wall is screwed into a screw part of the extraction pipe part 8. In addition, a pair of finger rest plates 48 are attached to the outer surface of the lid peripheral wall. A sealing ring 50 attached to the lower end of the lid peripheral wall 42 via a breaking band is fitted to the locking collar 15 so as not to come out.

  A retaining cylinder as a retaining means 52 is suspended from the top wall of the lid 40 and is engaged with the connecting cylinder.

  In the present invention, the ratchet mechanism R is formed by the first protrusions 60 formed on the inner peripheral surface of the front half 42b of the cover peripheral wall and the second protrusions 62 formed on the outer peripheral surface of the connecting tube 34 of the inner plug.

  The first convex row 60 has the first convex portions 60a arranged equiangularly at a constant angle around the central axis of the inner plug over the entire circumference of the inner peripheral surface of the front half portion 42b of the lid peripheral wall. .

The second convex column 62 is conformally arranged at an angle to the circumferential length portion excluding the area of the part of the outer peripheral surface of the connection tube 34 as a convex portion omitted area A _2. In the illustrated example, one locking projection is omitted.

  In the illustrated example, the first convex portion 60a is formed as a ratchet claw and the second convex portion 62a is formed as a ratchet tooth, but the structure can be changed as appropriate.

  According to the above configuration, since a part of the convex portion of the second convex row is omitted, when the lid body is rotated in the opening direction, the tilting power acts on the inner plug together with the rotational force. Then, local deformation occurs at a specific break line forming location (for example, two locations before and after the tilt direction), whereby the break line is easily broken.

  4 to 6 are views for explaining the operation of the present invention. In these drawings, the number of convex portions of the first convex row is four in order to simplify the description.

The outer peripheral surface of the coupling tube 34 in FIG. 4 is divided into three projection forming area A ₁ and one and the projections omitted area A _2. In the first convex row 60, a pair of first convex portions 60 a appearing on the left and right sides of the same figure are located at 180 ° rotationally symmetric positions around the central axis O, and are opposed to each other. Moreover, the 1st convex part which appears on the upper and lower sides of the same figure, and the missing part of the said convex part are also opposingly arranged.

  When the lid is rotated in the opening direction, the pair of left and right protrusions in FIG. 4 are engaged with the second protrusions 62a, respectively. Therefore, as shown in FIG. It affects the inside plug. However, since only the lower first convex portion 60a is engaged with the second convex portion 62a in the first convex portion and the missing portion of the convex portion appearing at the top and bottom in FIG. 4, the force F in one direction Effect. As a result, the inner plug 24 is tilted as shown in FIG. 6, and the broken line forming portion is extended in two directions (front and rear) in the tilt direction in the vertical direction. In addition, since the turning force in the opening direction is applied, the broken line can be reliably cut.

  In the present invention, play is provided between the retaining cylinder and the connecting cylinder so as not to impair the retaining action so that the lid retaining means (prevention cylinder) 52 does not hinder the tilting of the inner plug. Alternatively, the retaining cylinder can be elastically deformed.

  FIG. 7 shows a modification of the present invention. In this modification, the angle θ formed by each convex portion omitted area and the convex portion forming area with respect to the central axis is 90 °, and the number of convex portions corresponding to one area is two. With this configuration, substantially the same operation as in FIG. 4 can be obtained. In other words, even when the number of convex portions of the first convex row is large, the present invention can be applied by omitting a plurality of adjacent convex portions.

In the above embodiment, the number of first protrusions 60a and the number of second protrusions 62a (including missing parts) is the same, but the present invention is not limited to this.
For example, the plurality of first protrusions 60a may be arranged so as to correspond to one second protrusion 62a.

DESCRIPTION OF SYMBOLS 1 ... Pouring tool 2 ... Main pipe 4 ... Flange part 6 ... Suction pipe part 8 ... Pouring pipe part 9 ... Pouring pipe upper end part 10 ... Suction inlet 11 ... Auxiliary suction inlet 12 ... Spout 14 ... Screw part 15 ... Locking Hook 22 ... Break line 24 ... Inner plug 24a ... Base 24b ... Tip 26 ... Plug cylinder 28 ... Plug plate
34 ... Connecting cylinder 36 ... Ratchet teeth
DESCRIPTION OF SYMBOLS 40 ... Lid body 42 ... Lid peripheral wall 42a ... Base half part 42b ... Tip half part 44 ... Top wall 46 ... Ratchet nail | claw 48 ... Finger pad 50 ... Sealing ring 52 ... Stopping means
60 ... 1st convex line 60a ... 1st convex part 62 ... 2nd convex line 62a ... 2nd convex part 80 ... Container body
A ₁ ... Convex part formation area A ₂ ... Convex part omission area R ... Ratchet mechanism P ... Convex part pair θ ... Center angle

Claims (3)

A main pipe (2) which has an extraction pipe portion (8) having a tip end surface as a spout (12) and can be attached to a container body;
An inner plug (24) having a tip portion (24b) which is connected to the inner peripheral surface of the extraction pipe portion (8) via a break line (22) and protrudes outward through the extraction port (12);
The base half part (42a) of the cover peripheral wall is screwed into the extraction pipe part (8) and the front half part (42b) of the cover peripheral wall is connected to the outer peripheral part of the top wall (44) to prevent the inner plug from being removed. A lid (40) provided with means (52) inside,
Between the front half part (42b) of the lid peripheral wall and the front part (24b) of the inner plug, the lid (40) is allowed to rotate in the closing direction with respect to the inner plug (24) and is rotated in the opening direction. In the pouring tool for containers provided so that the breaking line (22) is broken by forming a ratchet mechanism (R) that disables movement and forcibly turning the lid (40) in the opening direction,
The ratchet mechanism (R) is equiangular at a constant angle over the entire peripheral length of the inner peripheral surface of the front half portion (42b) of the lid peripheral wall and the outer peripheral surface of the front end portion (24b) of the inner plug. The first convex row (60) arranged and the second convex portion arranged equiangularly at a constant angle over a circumferential length portion excluding this area, with one side portion of the other peripheral surface being a convex portion omission area (A ₂ ) A pouring tool for containers, characterized in that it is formed of rows (62). The entire area of the other peripheral surface is divided into an arc-shaped convex portion forming area including each second convex portion (62a) of the second convex row (62) and the convex portion omitted area (A ₂ ), 2. The pouring tool for containers according to claim 1, wherein the length of the convex portion omitted area in the circumferential direction is ¼ or less of the total circumferential length of the other circumferential surface.   3. The container pouring tool according to claim 1, wherein one of the first convex row (60) and the second convex row (62) is a tooth row and the other is a claw row. .