JP2012051618A - Dispensing device for container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dispensing device in which an inner stopper is attached to a main tube inner peripheral surface via a breaking line and which has a ratchet mechanism between the inner stopper and a cap body, and which has a structure for protecting the breaking line when the cap body is mounted.SOLUTION: The dispensing device for a liquid container includes: a main tube 2 using its end surface as a dispense port 12; an inner stopper 24 connected to an inner peripheral surface of the main tube 2 through the breaking line 22, and having an end 24b protruded outside through the dispense port 12; and a cap body 40 having a base half 42a of a cap peripheral wall threadedly engaged with the dispense tube 8 being the end of the main tube 2 and connects the end half 42b of the cap peripheral wall to the outer periphery of a top wall 44. Between the end half 42b of the cap peripheral wall and the end 24b of the inner stopper, a ratchet mechanism R is formed to inhibit turning of the cap body 40 in an opening direction relative to the inner stopper 24. A plurality of fitting recessed grooves 30 each having a base end side opened and groove-like auxiliary fitting lines 16 each having a base end side open are vertically provided in the inner peripheral surface of the inner stopper 24 and in the inner surface of the main tube part below the breaking line 22, respectively.

Description

  The present invention relates to a dispensing tool for containers.

  As a pouring tool for containers, it has a main pipe with an attachment to the mouth of the container body in the middle part of the cylinder wall, and a break line is formed at the lower end of the peripheral wall of the capped tube lid at the tip of this main pipe A ratchet mechanism that fits the sealing ring attached via the inner ring and the outer peripheral surface of the sealing ring and the outer peripheral surface of the front end portion of the main pipe that can rotate in the closing direction but cannot rotate in the opening direction. What was provided 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

  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 the breaking line, but the breaking line is fragile, so that when the cap is attached, the ratchet mechanism The breaking line may be damaged by the degree of reaction when the claw part moves over the ratchet teeth.

  An object of the present invention is a pouring tool provided with a ratchet mechanism between the inner plug and the lid body, with an inner plug attached to the inner peripheral surface of the main pipe via the fracture line, In order to protect, it is proposed to provide a fitting groove on the inside of the inner plug and an auxiliary fitting line in the main pipe.

The first means includes a main pipe 2 that can be attached to the container body with the tip end surface as a spout 12;
An inner plug 24 that is connected to the inner peripheral surface of the main pipe 2 via a breaking line 22 and has a tip 24b protruding outward through the spout 12;
The base half portion 42a of the cover peripheral wall is screwed into the extraction pipe portion 8 which is the front portion of the main pipe 2, and the tip half portion 42b of the cover peripheral wall is connected to the outer peripheral portion of the top wall 44, thereby preventing the inner plug from being removed. 53 with a lid 40 provided inside,
A ratchet mechanism R that disables rotation of the lid 40 in the opening direction with respect to the inner plug 24 is formed between the front half 42b of the lid peripheral wall of the lid 40 and the tip 24b of the inner plug 24, In the container pouring tool provided so that the breaking line 22 is cut by forcibly turning the lid 40 in the opening direction,
On the inner peripheral surface of the inner plug 24, there are a plurality of fitting grooves 30 that are the same width over the entire length in the vertical direction and open at the base end side, and the fitting protrusions 32 exist between these fitting grooves 30. Set up vertically,
Furthermore, a groove-shaped auxiliary fitting strip 16 having a convex shape or an open end on the base end side is vertically provided on the inner surface of the main main pipe portion from the breaking line 22;
A suction port 10 that also serves as an insertion port for inserting a locking rod that meshes with the fitting groove 30 and the auxiliary fitting strip 16 is opened at the base end surface of the main pipe 2.

  As shown in FIG. 1, this means is provided with a ratchet mechanism R between the main pipe 2 having the inner plug 24 attached to the inner peripheral surface via the breaking line 22 and the lid body 40, and further screwing the lid body. In order to protect the breaking line, a configuration is proposed in which a fitting groove 30 and a fitting projection 32 are formed in the tip of the inner plug, and an auxiliary fitting strip 16 is formed in the main pipe. As a result, the locking rod 82 as shown in FIG. 7 is inserted into the main pipe, the first locking portion 84 of the locking rod is the fitting groove, and the second locking portion 86 is the auxiliary fitting strip. The break line can be protected by fitting.

The “fitting groove” has a function of preventing the reaction received from the ratchet mechanism from being transmitted to the breaking line by meshing with the corresponding portion of the locking rod shown in FIG. The “auxiliary fitting strip” acts as a detent with respect to the locking rod. The auxiliary fitting strip may be a convex strip, but in the illustrated example, the “groove shape” formed in the shape of an open groove on the base end side (lower surface side in the illustrated example) includes the shape of the slit groove shown in FIG. . In this specification, unless otherwise specified, of the members of the extraction tool attached to the container body, the part closer to the container body is referred to as the base / base end, and the part far from the container body is the first part. It is called the part / tip.

  The second means includes the first means, and the breaking line 22 is provided on the inner plug proximal end side of the ratchet mechanism R in the inner plug 24, and the gap between the ratchet mechanism R and the breaking line 22 is provided. The fitting concave groove 30 and the fitting convex portion 32 are formed in the inner plug portion.

  In this means, it has been proposed to provide the fitting groove 30 and the fitting protrusion 32 in the middle plug portion between the ratchet mechanism R and the breaking line 22 shown in FIG. Since the reaction when the ratchet claw gets over the ratchet teeth is not directly transmitted to the breaking line, the breaking line can be more reliably protected.

  The third means has the second means, and in the state where the pipe axis of the main pipe 2 is oriented in the vertical direction, the auxiliary fitting strip 16 is provided at a position near the breaking line in the main pipe portion below the inner plug 24. Is forming.

  In this means, as shown in FIG. 1, it is proposed to provide the auxiliary fitting strip 16 at a location near the fracture line in the main pipe. Even when the auxiliary fitting strip is arranged at a location far from the breaking line (see, for example, FIG. 9), the inner plug can be locked to the main pipe. However, for example, the wall of the main pipe is slightly distorted to some extent. Stress can act on the fracture line. Depending on the thickness of the breaking line, there is a risk that the sealing property of the breaking line is lost even by such a strain, and this means can avoid such inconvenience. In the preferred illustrated example, the auxiliary fitting strip extends to the vicinity of the breaking line.

  The fourth means includes the third means, and the installation position of the auxiliary fitting strip 16 is a small inner diameter portion 20 whose diameter is reduced through a downward step 18, and the auxiliary fitting strip 16 is provided. It is a concave strip that opens on the lower surface of the step, and the vertical width of the auxiliary fitting strip and the small inner diameter portion 20 is larger than the vertical width of the fitting concave groove 30.

  In this means, the vertical width of the auxiliary fitting strip 16 is longer than the fitting concave groove 30 as shown in FIG. On the other hand, if the vertical width of the fitting groove is longer than the auxiliary fitting strip, the first engagement of the locking rod may occur when the alignment is incorrect when the locking rod is inserted into the main pipe. This is because the stop portion 84 pushes up the fitting convex portion 32 of the inner plug and there is a risk of damaging the breaking line 22.

The fifth means includes any one of the second means to the fourth means, and the base portion 24a of the inner plug 24 is formed with the plurality of fitting grooves 30 and the fitting protrusions 32 on the inner peripheral surface. The formed plug tube 26 is formed by continuing to the outer peripheral portion of the plug plate 28, and the break line 22 is provided between the base end portion of the plug tube 26 existing on the opposite side of the plug plate and the main pipe,
The tip 24b of the inner plug 24 is formed by erecting a connecting cylinder 34 having an upper end opening that is smaller in diameter than the plug cylinder and concentrically with the plug cylinder from the outer periphery of the inner plug 24 in the direction opposite to the plug cylinder. A ratchet tooth 36 of the ratchet mechanism R is formed on one of the outer peripheral surface of the connecting cylinder and the inner peripheral surface of the lid body 40, and a ratchet claw 46 is formed on the other.
A retaining cylinder 52 suspended from the back surface of the top wall of the lid body 40 is inserted into the connecting cylinder 34, and a rib serving as a retaining means is provided on each facing surface of the retaining cylinder and the connecting cylinder.

  In this means, a preferred embodiment of the inner plug is proposed. First, as shown in FIG. 1, the tip of the inner plug is a connecting cylinder having an upper end opening, and a retaining cylinder hanging from the lid side is fitted inside the connecting cylinder, so that the inner plug after the breaking line is broken Can be prevented from falling off. Secondly, the connecting cylinder provided with the ratchet mechanism has a smaller diameter than the plug cylinder 26 provided with the fitting concave groove and the fitting convex portion. The mating force is sufficient to counteract.

  According to the first aspect of the invention, since the fitting groove 30 and the fitting protrusion 32 are provided vertically on the inner peripheral surface of the inner plug, the lid is mounted by the engagement of the fitting groove and the locking rod. Sometimes it can resist the resistance force received from the ratchet mechanism, and it can resist the frictional force received from the screwed part between the lid peripheral wall and the inner plug by locking the auxiliary fitting strip to the locking rod. , Breakage of the broken line can be avoided.

  According to the second aspect of the invention, since the fitting concave groove 30 and the fitting convex portion 32 are formed in the inner plug portion between the ratchet mechanism R and the breaking line 22, the resistance force from the ratchet mechanism R is obtained. Can be received by the fitting groove at a position before being transmitted to the breaking line 22.

  According to the invention relating to the third means, since the auxiliary fitting strip 16 is formed at a location near the inner plug in the main pipe portion below the breaking line, it is hardly affected by the twist of the pipe wall of the main pipe, and the breaking line. It is possible to further reduce the torsional stress due to the screwing of the lid.

  According to the fourth aspect of the invention, since the vertical width of the auxiliary fitting strip 16 is larger than the vertical width of the fitting concave groove 30, there is a corresponding location and position of the auxiliary fitting strip and the locking rod. When there is not, it can prevent that the upper end of a locking rod hits a fitting convex part, and breaks the fracture | rupture line 22.

  According to the fifth aspect of the invention, since the fitting concave groove 30 and the fitting convex portion 32 are provided in the plug cylinder 26 having a larger diameter than the connecting cylinder 34 provided with ratchet teeth or ratchet pawls, the fitting is relatively fitted. The fitting force can be increased by increasing the size of the groove 30 (or increasing the number thereof).

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 for demonstrating the 1st step of the operation | work which inserts a latching rod into the main pipe of the extraction tool of FIG. 1, and assembles a cover body. It is a longitudinal cross-sectional view for demonstrating the 2nd step of the operation | work of FIG. It is a cross-sectional view corresponding to the state of FIG. It is a cross-sectional view for explaining the operation of the ratchet mechanism in the second stage of the work of FIG. It is a front view of the latching rod used for the operation | work of FIG. It is a top view of the locking rod of FIG. It is a longitudinal cross-sectional view of the extraction tool which concerns on 2nd Embodiment of this invention.

  FIGS. 1-8 has shown the extraction tool 1 which concerns on the 1st Embodiment of this 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 part of the pipe wall as a flange part 4 that is an attachment part to the mouth and neck of the container body 80 indicated by an imaginary line, and the base part (lower part) of the main pipe is inserted into the container body. The suction pipe portion 6 is used as a suction pipe portion 6 and the tip portion (upper portion) of the main pipe is used as an extraction pipe portion 8 for projecting outward from the container body.

  The base end surface (lower end surface) of the main pipe 2 is a suction port 10 that also serves as an insertion port for a locking rod, and the front end surface (upper end surface) 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.

  The said extraction pipe part 8 forms the thread part 14 in the outer surface except for the upper end part 9 located above the below-mentioned breaking line. Further, a locking collar portion 15 is formed slightly below the screw portion.

  In addition, a plurality of auxiliary fitting strips 16 are provided equiangularly on the inner surface of the extraction pipe portion 8 so as to be positioned below the upper end portion 9. In a preferred illustrated example, the upper half of the inner surface of the extraction pipe portion 8 is a small inner diameter portion 20 that is reduced in diameter via a downward step 18, and the lower inner portion of the small inner diameter portion is located below the location where the break line is installed. A concave groove-shaped auxiliary fitting strip 16 is formed in the lower surface of the step 18. This is because opening the lower surface of the concave groove facilitates fitting with a second locking portion of a locking rod described later. However, the auxiliary fitting strip may be a convex strip (not shown). In this case, it is not necessary to make the upper half part of the extraction pipe part a small inner diameter part, and a step can be omitted. The auxiliary fitting strip 16 is preferably formed sufficiently long in the vertical direction as compared with a fitting concave groove 30 described later.

  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 via a tapered shoulder portion having a small diameter at the tip, and the lower end portion of the plug cylinder is continuous with the fracture line 22. I am letting.

  On the inner surface of the plug cylinder 26, an appropriate number (four in the illustrated example) of fitting concave grooves 30 and fitting convex portions 32 existing between the respective fitting concave grooves are equilaterally provided vertically. These fitting grooves are formed so as to be able to mesh with a locking rod described later, as shown in FIG.

  Further, the tip 24b of the inner plug erected from the outer periphery of the plug plate 28 has a connecting cylinder 34 having a smaller diameter than the plug cylinder and open at the upper end, and formed with ratchet teeth 36 on the outer surface of the connecting cylinder 34. A retaining rib is provided around the inside of the tube.

  The lid body 40 connects the top end (tip) of the lid peripheral wall 42 to the top wall 44. The base half portion 42a of the lid peripheral wall is screwed into the threaded portion of the extraction pipe portion. A plurality of ratchet claws 46 are formed on the tip half 42b of the cover peripheral wall, and a ratchet mechanism R is formed by these ratchet claws and the ratchet teeth of the dispensing pipe portion. Furthermore, 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.

  From the top wall of the lid 40, a retaining cylinder 52 with ribs serving as retaining means 53 is suspended, and this retaining cylinder is engaged with the connecting cylinder.

  7 and 8 show a locking rod 82 used for assembling the lid of the extraction tool 1. The distal end portion of the locking rod has a shape corresponding to the small inner diameter portion of the dispensing tube portion and the inner surface of the base portion of the inner plug, the first locking portion 84 that fits into the fitting concave groove, and the auxiliary fitting It has the 2nd latching | locking part 86 which fits with a joint line. A vertical plate portion 88 for positioning and holding is attached to the lower end portion of the locking rod 82.

Next, the procedure for producing the dispensing tool of the present invention will be described.
(1) First, the main pipe 2 and the inner plug 24 are molded as an integrated product.

(2) The locking rod 82 is aligned with the main pipe 2 with the inner plug 24.
In the illustrated example, if the vertical plate portion 88 of the locking bar and the finger pad 48 are aligned so that they are on the same vertical plane, the fitting concave groove 30 of the inner plug and the first locking portion of the locking rod 84, and the respective circumferential positions of the auxiliary fitting strip 16 of the main pipe and the second locking portion 86 of the locking rod are matched.

(3) After the positioning operation, the locking rod 82 is inserted into the main pipe 2 with the inner plug 24.
Since each of the fitting groove 30 and the auxiliary fitting strip 16 is an opening on the lower surface, the first locking portion 84 can be inserted into the fitting groove 30 and the auxiliary fitting strip by performing an alignment operation accurately. Each of the second locking portions 86 is smoothly inserted into 16.

  When the positioning is not properly performed, the second locking portion 86 of the locking rod hits the downward stepped portion 18 to cause a sense of resistance, so that the positioning may be performed again. Since the locking rod is stopped by the second locking portion hitting the lower surface of the stepped portion 18 and the first locking portion 84 does not hit the fitting convex portion, it is avoided that excessive stress is applied to the breaking line. Is done.

(4) Next, the lid body 40 is screwed into the screw portion 14 of the main pipe 2 with the inner plug.
As shown in FIG. 6, the reaction when the ratchet pawl 46 of the ratchet mechanism R gets over the ratchet teeth 36 is transmitted to the inner plug 24 side, but this does not damage the breaking line 22. A fitting groove 30 of the inner plug 24 is located between the ratchet mechanism R and the breaking line 22, and the first locking portion 84 of the locking rod 82 is firmly fitted in the fitting groove as shown in FIG. This is because the auxiliary fitting strips 16 that are engaged with each other and that are below the breaking line 22 are engaged with the second locking portion 86 of the locking rod.

  By the above screwing operation, the sealing ring 50 at the lower end of the peripheral wall of the lid is locked to the lower surface of the locking collar portion 15 of the extraction pipe portion, and the retaining cylinder 53 is provided with a retaining means 53 for retaining the lid. The cylinder 52 is engaged.

(5) The assembly operation is completed by pulling out the locking rod after fitting the lid to the main pipe 2 with the inner plug. Thereafter, the dispensing tool 1 may be attached to the mouth of the container body 80.

  According to the structure of the extraction tool manufactured by the above procedure, an excessive force does not act on the breaking line during the manufacturing process, so that the sealing performance is not impaired. When the finger contact plate of the lid is gripped and rotated in the opening direction, the rotational force is transmitted to the breaking line 22 by the action of the ratchet mechanism, and the breaking line is easily cut. Next, when the lid is pulled up, the inner plug is pulled up through the retaining means, and the pouring tool is opened.

  FIG. 9 shows a second embodiment of the present invention. In this embodiment, the auxiliary fitting strip 16 is formed as a slit groove at the lower end portion of the suction pipe portion 6 of the main pipe. Other configurations are the same as those of the first embodiment.

DESCRIPTION OF SYMBOLS 1 ... Pouring tool 2 ... Main pipe 4 ... Flange part 6 ... Suction pipe part 8 ... Pouring pipe part 9 ... Outlet pipe part upper end part 10 ... Inlet 11 ... Auxiliary inlet 12 ... Outlet 14 ... Screw part 15 ... Engagement Stopping part 16 ... Auxiliary fitting strip 18 ... Step 20 ... Small inner diameter part 22 ... Broken line 24 ... Inside plug 24a ... Base part 24b ... Tip part 26 ... Plug cylinder 28 ... Plug plate
30 ... Fitting groove 32 ... Fitting protrusion 34 ... Connecting cylinder 36 ... Ratchet tooth
DESCRIPTION OF SYMBOLS 40 ... Lid 42 ... Lid peripheral wall 42a ... Same base half part 42b ... Same tip half part 44 ... Top wall 46 ... Ratchet nail 48 ... Finger pad 50 ... Sealing ring 52 ... Retaining cylinder 53 ... Retaining means (rib)
R ... Ratchet mechanism 80 ... Container body 82 ... Locking rod 84 ... First locking portion 86 ... Second locking portion 88 ... Vertical plate portion

Claims (5)

A main pipe (2) that can be attached to the container body with the tip surface as a spout (12);
An inner plug (24) connected to the inner peripheral surface of the main pipe (2) via a breaking line (22) and having a tip portion (24b) protruding outward through the spout (12);
The base half part (42a) of the cover peripheral wall is screwed into the extraction pipe part (8) which is the front part of the main pipe (2), and the front half part (42b) of the cover peripheral wall is the outer peripheral part of the top wall (44). And a lid (40) provided with an internal stopper retaining means (53) inside,
Rotation of the lid (40) in the opening direction with respect to the inner plug (24) between the tip half (42b) of the lid peripheral wall of the lid (40) and the tip (24b) of the inner plug (24) In the container pouring tool provided so that the breaking line (22) is broken by forming a ratchet mechanism (R) that makes the lid impossible and forcibly turning the lid (40) in the opening direction,
On the inner peripheral surface of the inner plug (24), a plurality of fitting grooves (30) having a uniform width over the entire length in the vertical direction and open to the proximal end are fitted between the fitting grooves (30). Part (32)
Further, a groove-shaped auxiliary fitting strip (16) having a convex shape or a base end side opening is provided vertically on the inner surface of the base main pipe portion from the fracture line (22),
The suction port (10), which also serves as an insertion port for inserting a locking rod that meshes with the fitting groove (30) and the auxiliary fitting strip (16), is opened at the base end surface of the main pipe (2). Dispensing tool for containers.   The breaking line (22) is provided in the inner plug (24) on the proximal end side of the inner plug from the ratchet mechanism (R), and the above-mentioned breaking line (22) is provided at the inner plug portion between the ratchet mechanism (R) and the breaking line (22). The container pour tool according to claim 1, wherein the fitting concave groove (30) and the fitting convex portion (32) are formed.   In the state where the pipe axis of the main pipe (2) is oriented in the vertical direction, an auxiliary fitting strip (16) is formed at a position near the breaking line in the main pipe portion below the inner plug (24). The extraction tool for containers according to claim 2.   The installation location of the auxiliary fitting strip (16) is a small inner diameter portion (20) whose diameter is reduced through a downward step (18), and the auxiliary fitting strip (16) is opened at the lower surface of the step. 4. A pouring tool for containers according to claim 3, wherein the vertical width of the auxiliary fitting strip and the small inner diameter portion (20) is larger than the vertical width of the fitting concave groove (30). . A plug cylinder (26) having a base portion (24a) of the inner plug (24) formed on the inner peripheral surface thereof with a plurality of fitting grooves (30) and fitting projections (32) is provided on the outer periphery of the plug plate (28). And forming the break line (22) between the base end of the plug cylinder (26) existing on the opposite side of the plug plate and the main pipe,
A connecting tube (34) having an upper end opening that is concentric with the plug tube and having a diameter smaller than the plug tube in the direction opposite to the plug tube from the outer periphery of the inner plug (24). The ratchet teeth (36) of the ratchet mechanism (R) are provided on one of the outer peripheral surface of the connecting cylinder and the inner peripheral surface of the lid (40), and the ratchet pawl (46) is provided on the other. Each formed,
The retaining cylinder (52) suspended from the back surface of the top wall of the lid (40) is inserted into the connecting cylinder (34), and ribs serving as retaining means are provided on the opposing surfaces of the retaining cylinder and the connecting cylinder. The dispensing tool for containers according to any one of claims 3 to 4, characterized in that it is provided.