JP2014104987A - Inside plug for container for refilling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To press an inside plug for a container for refilling into a pouring port of a container so it can be opened with as light a force as possible.SOLUTION: The inside plug comprises:a cylindrical part having an opening end at one end of longitudinal direction; a bottom piece for occluding the other end of the longitudinal direction of the cylindrical part; and a fitting part for fixing the cylindrical part to a mouth of the container for refilling. On an outer edge of the bottom piece, a fragile part which is thinner than an inner part is provided along the cylindrical part. On the bottom piece, a first bulge which projects toward the opening end side over the outer edge and the inner part which is positioned more at the inner position than the outer edge, is provided.

Description

  The present invention relates to an inner stopper that closes the mouth of a refill container.

  The refill container contains a liquid or the like as its contents. And it is generally performed to refill the contents in the refill container into the main container where the contents are used up.

  In order to facilitate this refilling operation, a spout that is fitted to the container body of the refilling container is known (Patent Document 1). The spout has a nozzle fitting cylinder and a closing lid that closes the inside of the nozzle fitting cylinder, and the outer edge of the closing lid (the inner peripheral portion along the nozzle fitting cylinder) is a thin broken line. It is.

  When refilling the contents using this spout, turn the refill container upside down and press the spout against the nozzle protruding above the emptied container, and push the closure cover of the spout with the nozzle. The closure lid was to be broken from the breaking line.

JP 2010-260553 A

  However, since the closure plug is flat, if the tip of the nozzle is generally flat, the force pushed when opening is applied to the tip of the nozzle. The larger the contact area of the nozzle tip, the larger the opening. It will require power.

  The present invention has been made in consideration of the above circumstances, and an object of the present invention is to enable the inner plug of a refill container to be opened with as little force as possible.

  The inner plug of the present invention includes a cylindrical portion having one end in the length direction as an open end, a bottom piece portion that closes the other in the length direction of the cylindrical portion, and an attachment portion that fixes the cylindrical portion to the mouth portion of the refill container. It is assumed that the outer edge portion of the bottom piece portion is provided with a thinner fragile portion along the tube portion than the inner portion. The bottom piece includes a first ridge that protrudes toward the opening end over the outer edge and the inner portion.

  This refill container to which the inner stopper is fixed uses the following main container as a target for refilling its contents. In the present container, the spout protrudes upward from the mouth from the inside in the diameter direction of the mouth, and the spout has a bowl shape (groove shape).

Moreover, the 1st protruding part should just protrude to the opening end side of a cylinder part, and although the shape is not ask | required, specifically, it is desirable to do as follows.
That is, the first raised portion protrudes in an inverted V-shaped cross section toward the opening end side, and an inverted V-shaped cut recess continuous to the first raised portion is provided at the closed end portion of the cylindrical portion. That is.

Further, the bottom piece portion may be a weakened portion around the entire outer edge (the entire inner periphery along the tube portion), but the inner plug is positioned with respect to the spout as follows. It becomes easy to do.
That is, the partition piece portion that divides the internal space of the tubular portion into the one having the first raised portion and the portion not having the first raised portion is provided in a state extending from the bottom piece portion toward the opening end side of the tubular portion, and the first raised portion of the bottom piece portion The open piece portion is the open piece, the closed portion is the first raised portion, the outer edge portion of the open piece portion is the fragile portion, and the open piece portion is the outer edge portion. The portion along the partition piece is a thin bent portion as compared with the inner portion.

Further, when the first raised portion hits the pouring spout and breaks the fragile portion to open the bottom piece, the opened bottom piece partially closes the pouring spout. In order to easily discharge the contents from the spout, it is desirable to open the bottom piece at a larger angle so that something hits the spout.
That is, the bottom piece is provided with a second raised portion on the inner side of the first raised portion, and the second raised portion protrudes toward the opening end side from the first raised portion.

  According to the inner stopper of the present invention, when refilling the contents of the refill container with the inner stopper fixed to the present container having the bowl-shaped spout, the inner stopper is applied to the spout of the container. When the replacement container is pushed in, the first bulging portion protruding toward the opening end side hits the spout, and the pushing force is concentrated on the first bulging portion. It is possible to open the inside plug with a light force compared to.

  In addition, when the partition piece portion that partitions the internal space of the cylinder portion is provided so as to extend from the bottom piece portion to the opening end side of the cylinder portion, the internal space of the cylinder portion is divided by the partition piece portion, and the division is performed. It becomes easy to position the spout by the open space and to easily open the inner plug. And since the whole outer edge part of an open piece part is thin, not only a weak part will be damaged but the bending part used as the fulcrum will bend easily, and an open piece part will open easily.

  Further, in the case where not only the first raised portion but also the second raised portion is provided on the bottom piece, and the second raised portion protrudes toward the opening end side from the first raised portion, the second raised portion is opened after opening. By hitting the pour spout, the bottom piece opens at a larger angle than that without the second raised portion, the portion that blocks the pour spout is reduced, and the contents can be easily discharged from the pour spout.

FIGS. 4A to 4F are a front view, a right side view, a plan view, a rear view, a bottom view, and a cross-sectional view taken along the line X-X of the inner plug of the first embodiment of the present invention. It is principal part sectional drawing which shows the state which made the inner stopper fixed to the refill container contact the spout of this container. It is principal part sectional drawing which shows the state which pressed the inner stopper fixed to the refilling container a little against the spout of this container. It is principal part sectional drawing which shows the state by which the inner stopper fixed to the refill container was opened. It is a top view which shows the positional relationship of the 2nd protruding part of an inner stopper, and the spout of a nozzle. It is a top view which shows this container. It is a perspective view which shows this container and the refill container with an inside stopper.

  As shown in FIG. 2, FIG. 6 or FIG. 7, the refill container B <b> 1 to which the inner plug 1 of the present invention is attached is intended for use as a premise. The main container A1 includes a main container body A2, a nozzle A3 connected to the main container body A2, and a cap (not shown) that can be attached to and detached from the nozzle A3.

  In the container main body A2, the bottom of the cylindrical body A21 is closed, and a shoulder A22 that narrows the diameter is continuous with the upper end of the body A21, and the mouth A23 stands from the inner side in the diameter direction of the shoulder A22. doing.

  The nozzle A3 connected to the mouth portion A23 includes an outer wall A31 disposed on the outer side in the caliber direction with respect to the mouth portion A23, and an inner wall A32 disposed on the inner side in the caliber direction with respect to the mouth portion A23. The inner wall A32 and the outer wall A31 are arranged concentrically, and both are cylindrical. The outer wall A31 covers the outer peripheral surface of the mouth portion A23, and is connected to the mouth portion A23 by tightening screws or the like. A ceiling wall A33 that joins the outer wall A31 and the inner wall A32 at their upper ends is formed in a ring shape, and the mouth wall A34 projects upward from the ceiling wall A33. And the male screw A34a is formed in the outer peripheral surface of the mouth wall A34, and the cap which is not shown in figure is attached. In addition, a narrow wall A35 projects in an annular shape at the lower end of the inner wall A32 in a direction that narrows the diameter over the entire circumference, and a discharge port A35a is formed inside the narrow wall A35. When viewed in a plan view, the discharge port A35a has a shape larger than a semicircle, such as a part of a circle cut by a straight line, and has a C-shaped portion on the outer shape. The spout A36 is provided upright so as to guide the contents from the C-shaped portion of the discharge port A35a (the C-shaped portion formed at the inner edge of the narrow wall A35). .

  The spout A36 has a bowl shape or groove shape as a whole (more specifically, a C groove shape in a plan view), and if the whole is roughly divided into three in the arc direction of the C groove, And a pair of groove side walls A36b and A36b provided on both outer sides of the groove bottom wall A36a.

  The spout A36 extends from the narrow wall A35 to the upper side of the mouth wall A34. As shown in FIG. 7, the groove bottom wall A36a of the pouring spout A36 is substantially flat as shown in FIG. 7, and is slightly swelled in a circular arc shape so that the central part in the groove width direction is the highest (curved). ing).

  When viewed from the side, the pair of groove side walls A36b, A36b are curved so that the portion protruding upward from the mouth wall A34 swells in an arc shape. It is steep.

  In addition, a mouth wall A34 and an inner wall A32 are arranged on the outer side in the diametrical direction of the spout A36, and the refill container B1 is intended for use with the main container A1.

  The refill container B1 is composed of a refill container body B2 and a cap (not shown). It is a bottle-shaped container. More specifically, the refill container main body B2 mainly has a cylindrical body B21, and closes the bottom of the body B21, and at the upper end of the body B21, shoulders in the direction of narrowing the diameter. B22 protrudes and the cylindrical mouth part B23 stands up from the inner diameter side of the shoulder part B22. In the refill container main body B2, for example, a liquid is stored as the contents. The inner plug 1 of the present invention is used in such a refill container B1.

  The inner stopper 1 of the first embodiment of the present invention is a plastic product, and as shown in FIG. 1, is fixed to the mouth B23 of the refill container B1 and positioned to the spout A36 of the container body A2. These shapes are designed so that they can be inserted. The inner plug 1 has a cylindrical portion 2 to be inserted inside the mouth portion B23 of the refill container B1 and an opening end 2a which is one of the length directions of the cylindrical portion 2 (hereinafter referred to as “opening end side”). ) To the mouth B23, a bottom piece 4 that closes the other of the cylindrical portion 2 in the length direction, and an inner space of the cylindrical portion 2 that extends from the bottom piece 4 to the opening end side of the cylindrical portion 2 The partition piece part 5 which partitions off is provided.

  The cylinder part 2 is provided with a cut recess 21 on the closed end side. The cut recess 21 is recessed in an inverted V shape toward the opening end side.

  The attachment portion 3 includes a flange portion 31 that protrudes outward in the radial direction from the opening end side of the tubular portion 2, and a ring portion 32 that hangs down from the entire circumference of the outer edge portion of the flange portion 31. An annular space is formed between the mounting portion 3 and the upper end portion of the cylindrical portion 2, and the inside plug 1 is inserted into the refill container B1 by press-fitting the front end of the mouth B23 of the refill container B1 into this space. Fixed.

  When viewed in plan, the partition piece 5 is in a state of being erected on the inner side of the cylinder part 2, and the top of the cut recess 21 that is recessed in an inverted V shape is located on the vertical bisector in the erection direction. It is like that. The total length in the erection direction is longer than the opening width at the lower end of the cut recess 21. Furthermore, the partition piece part 5 extends over the entire length in the length direction of the cylinder part 2 to divide the internal space of the cylinder part 2, and the space through which the contents of the refill container B1 pass through one of the divided spaces. (Hereinafter referred to as “passing space 5a”), and the other divided space is simply a closed space 5b. The pouring spout A36 of the main container A1 is accommodated in the passage space 5a, and the main container A1 is positioned by guiding the outer side of the spout A36 so as to be surrounded by the cylindrical portion 2 and the partition piece portion 5.

  The bottom piece 4 includes a closed piece 41 that faces the closed space 5b and an open piece 42 that faces the passage space 5a.

  The closed piece portion 41 is inclined so that the surface on the side opposite to the opening end (the surface not facing the closed space 5b) moves toward the side opposite the opening as the distance from the partition piece 5 increases.

  The open piece portion 42 includes an outer edge portion 44 and an open piece main body portion 43 that is a portion other than the outer edge portion 44 (a portion inside the outer edge portion 44). Further, the outer edge 44 is formed thinner than the open piece main body 43 and the tube portion 2, a portion along the tube portion 2 is a fragile portion 44 a, and a portion along the partition piece portion 5 is a bent portion. 44b. And the weak part 44a and the bending part 44b are continuing cyclically | annularly. The fragile portion 44 a has an arc shape that continues along the lower end of the cylindrical portion 2 (in the illustrated example, an arc shape larger than a semicircle in plan view), and the bent portion 44 b extends along the lower end of the partition piece portion 5. It is a continuous straight line. Then, the passage space 5a is blocked by the fragile portion 44a, the bent portion 44b, and the open piece main body portion 43.

  In addition, the open piece main body 43 has a base 43a that serves as a reference for the depth of the cylindrical portion 2, a first raised portion 43b that protrudes toward the opening end with respect to the base 43a, and a first raised portion 43b. And a second raised portion 43c protruding toward the opening end side. Moreover, since the open piece main body portion 43 includes the first raised portion 43 b and the second raised portion 43 c, the passage space 5 a facing them is formed by the partition piece portion 5 where the first raised portion 43 b or the like is present. The closed space 5b is a space without the first raised portion 43b or the like.

  The base portion 43a has a flat plate shape, and, when seen in a plan view, extends along the inner periphery of the tubular portion 2 (fragile portion 44a) from both ends of the belt-like portion 43a1 along the direction in which the partition piece portion 5 is erected. It is composed of a very thin arc-shaped portion 43a2 and is formed so as to surround a substantially U-shape.

  The first raised portion 43b is provided not only on the open piece main body portion 43 but also on a corresponding portion of the fragile portion 44a because of being provided so as to be continuous with the cut recess 21. Further, the first raised portion 43b protrudes toward the opening end side in an inverted V-shaped cross section corresponding to the depression of the cut recessed portion 21, and the protruding amount gradually decreases toward the inner side of the open piece main body portion 43. Yes.

  The second raised portion 43c is provided on the radially inner side of the cylindrical portion 2 with respect to the first raised portion 43b. More specifically, the second raised portion 43c is surrounded by the first raised portion 43b and the base portion 43a. Is provided. The second raised portion 43c is substantially rectangular in plan view, and two sides of the substantially rectangular four sides are arc-shaped along the cylindrical portion 2, and the remaining two sides are partition piece portions. 5 is a straight line parallel to 5. For this reason, one side is located in the 1st protruding part 43b side among the two sides which are linear. In addition, as described above, the second raised portion 43c protrudes toward the opening end side from the first raised portion 43b. More specifically, the second raised portion 43c is formed by the first raised portion 43b. As it goes from the side toward the partition piece portion 5, it gradually protrudes toward the opening side, and then gradually decreases toward the closed end side. Further, in the width direction (direction parallel to the direction in which the partition piece portion 5 is installed), the second raised portion 43c is not only the inverted V-shaped top portion of the cut recess 21 but also the opening width at the lower end of the inverted V-shape. It is also formed to a position that is close to the inner periphery of the cylindrical portion 2. A rib 43d extending in a direction orthogonal to the width direction is formed on the surface on the side opposite to the opening of the second raised portion 43c.

The refill container B1 with the above-described inner stopper 1 is used as follows.
(1) When the refill container B1 is turned upside down and the inner stopper 1 is inserted into the spout A36 of the main container body A2, as shown in FIG. 2, the cylindrical portion 2 of the inner stopper 1 becomes the spout A36. The partition piece portion 5 of the inner plug 1 is along the end surface of the spout A36 (the upper surface of the arcuate portion when viewed from the side) along the outer peripheral surface (a U-shaped outer surface in plan view). To be guided. At this time, the tip of the spout A36 comes into contact with the first raised portion 43b.

  (2) Next, when the refill container B1 is pushed down slightly, as shown in FIG. 3, the second raised portion 43c is also in contact with the first raised portion 43b at the tip of the spout A36. Incidentally, the reason why the second raised portion 43c is widely provided to the position approaching the inner periphery of the cylindrical portion 2 as described above is that the second raised portion 43c is indicated by hatching in FIG. In addition, the second raised portion 43c is brought into contact with the pair of groove side walls A36b, A36b of the spout A36 so as to erection the ridge.

  (3) Further, when the refill container B1 is pushed down, as shown in FIG. 4, the fragile portion 44a is broken, the open piece 42 is opened with the bent portion 44b as a fulcrum, and finally the second raised portion 43c comes into contact with the end surface of the spout A36, and the open piece 42 is greatly opened, and a large gap is formed between the end surface of the spout A36 and the open piece 42. And the content in refill container B1 flows into this container main body A2 using this big clearance gap. Further, since the surface (upper surface in FIG. 4) side of the closing piece portion 41 of the inner plug 1 is inclined, the contents are discharged without accumulating on the upper surface of the closing piece portion 41. Moreover, since the surface on the side opposite to the opening of the second raised portion 43c is also an inclined surface with respect to the horizontal, the contents are similarly discharged.

  The present invention is not limited to the above embodiment. For example, the open piece portion 42 may have a form having only the first raised portion 43b, that is, a form without the second raised portion 43c. In this case, the open piece main body portion 43 has the base portion 43a and the first raised portion. 43b only.

1 Inner plug 2 Tube portion 2a Open end 21 Cutting recess 3 Mounting portion 31 Flange portion 32 Ring portion 4 Bottom piece portion 41 Closure piece portion 42 Open piece portion 43 Open piece main body portion 43a Base portion 43a1 Strip portion 43a2 Arc-shaped portion 43b First Bulging portion 43c second bulging portion 43d rib 44 outer edge portion 44a fragile portion 44b bent portion 5 partition piece portion 5a passage space 5b closed space

A1 container A2 container body A21 trunk A22 shoulder A23 mouth A3 nozzle A31 outer wall A32 inner wall A33 top wall A34 mouth wall A34a male screw A35 narrow wall A35a outlet A36 pour A36a groove bottom wall A36b groove side wall

B1 refill container B2 refill container body B21 trunk B22 shoulder B23 mouth

Claims (4)

A tubular portion having one end in the length direction as an open end; a bottom piece portion that closes the other in the length direction of the tubular portion; and an attachment portion that fixes the tubular portion to the mouth portion of the refill container; At the edge, in the inner stopper provided with a weakened portion of the thin wall along the cylindrical portion compared to the inner portion,
An inner plug characterized in that the bottom piece includes a first raised portion protruding toward the opening end side over an outer edge portion and an inner portion thereof. The first raised portion protrudes in an inverted V-shaped cross section toward the opening end side,
The inner plug according to claim 1, wherein a closed end portion of the cylindrical portion is provided with an inverted V-shaped cut recess that is continuous with the first raised portion. A partition piece portion that partitions the internal space of the tubular portion into the one having the first raised portion and the portion not having the first raised portion is provided in a state extending from the bottom piece portion toward the opening end side of the tubular portion
Of the bottom piece, the one with the first raised portion is the open piece, the one without the first raised portion is the closed piece,
Of the outer edge portion of the open piece portion, the portion along the cylinder portion is a fragile portion, and the portion of the outer edge portion of the open piece portion along the partition piece is a thinner bent portion than the inner portion. The inside plug according to claim 1 or 2. The bottom piece includes a second raised portion on the inner side of the first raised portion,
The inner plug according to claim 2 or 3, wherein the second raised portion protrudes more toward the opening end than the first raised portion.

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