JP4793813B2 - Container with inner stopper - Google Patents

Description

  The present invention relates to a container with an inner stopper, and more particularly to a container with an inner stopper for refilling which can be easily refilled with contents.

    In a container equipped with an inner stopper that hangs from a top wall with a spout, and a cap that covers the inner stopper, when the contents are used up, The inside plug was removed by applying a finger to the outer edge of the top wall of the inner plug, and the contents were replenished from the mouth and neck.

However, since the inner plug has no finger hook and is difficult to remove, the upper part of the mouth and neck of the container is formed into a small outer diameter part that is reduced in diameter through an upward stepped part, and the outer surface of the small outer diameter part is In a structure in which a fitting cylinder suspended from the outer edge of the top wall of the stopper is fitted, a finger-hanging recess is provided on a part of the outer surface of the fitting cylinder (Patent Document 1), or the lower surface of the fitting cylinder A pair of engaging projections formed so that the other rides on one of the upper stepped portions by rotation of the inner plug is attached to the upward stepped portion (Patent Document 2).
JP 2001-097428 JP 2001-158456 JP2004-359239

    In the containers of Patent Document 1 and Patent Document 2, a finger is placed on the outer surface of the fitting tube of the inner plug that is fitted to the upper part of the outer surface of the mouth-and-neck portion, and the force is applied upward or circumferentially to remove it. Since it is difficult to make the outer surface of the fitting tube sufficiently large because the lower part of the outer surface is used as the fitting surface with the cap peripheral wall, depending on the fitting strength of the plug into the mouth and neck, Even if it is provided, there is a risk that it is difficult to apply force due to the finger slipping, and there is a case where the fingertip becomes painful if force is applied to the fingertip hung on the finger-hanging recess.

  In order to eliminate such inconveniences, it is desirable to have a structure that converts the force applied inward in the radial direction of the mouth-and-neck portion into a push-up force by a booster mechanism.

    As such a structure, although it is not a means for pushing up the inner plug, for example, Patent Document 3 discloses a push-up cylinder surrounding the mouth-neck portion on the outer peripheral portion of the tapered surface having a small diameter at the upper end formed on the outer surface of the base portion of the mouth-neck portion. While bringing the lower end closer, the push-up arm standing up from both the left and right sides of the push-up cylinder is brought into contact with the lid that opens and closes the upper surface of the main body through the cap body supported by the mouth and neck. It discloses a structure in which both the left and right walls of the push-up cylinder ride on a tapered surface by pushing the cylinder inward in the left and right direction and press the lid in the opening direction.

  However, even if the booster mechanism of Patent Document 3 is incorporated into a container with an inner stopper, the push-up cylinder of this mechanism surrounds the mouth and neck, so that the cap is fitted to the lower half of the outer surface of the mouth and neck. It is a problem how to assemble the container with the combined inner stopper, and it is desirable to prevent the cap from being attached or detached with a small number of members. The push-up cylinder is constructed so that it can be pushed in from both the left and right sides. However, when this structure is introduced into a container of a type in which a cap is attached to and detached from the mouth-and-neck part, it is difficult for the consumer to know where the operation part is.

  Therefore, the present invention is an omnidirectional operation type that can be unplugged by lightly pushing anywhere on the outer wall of the inner plug during the refilling operation of the contents, and during re-fitting to the mouth and neck. An object of the present invention is to provide an easy-to-use container with an inner stopper in which the circumferential direction of the stopper is also free.

First means, in the neck 8 of the container body 2, provided with inner plug 20 which plugs tube 26 was fitted depending from Note with the outlet 22 top wall 24 the back surface, the spout 22 by a cap 50 In the closed container with an inner stopper, the outer peripheral surface of the proximal end of the mouth-and-neck part 8 is a tapered inclined surface 16 having a small upper end, and the lower end of the outer peripheral wall 20b hanging from the outer periphery of the top wall 24 of the inner stopper 20 is the tapered shape. When one part of the circumferential direction of the operation tube portion 32 formed near the outer peripheral portion of the slope 16 and formed at the lower portion of the outer peripheral wall 20b is pushed inward, the portion of the operation cylinder portion 32 is pushed up on the tapered slope 16 The stopper 20 is pushed up to be detachable , the cap peripheral wall 54 is suspended to the operation tube portion 32 of the inner plug 20, and the operation tube portion 32 cannot be pushed in unless the cap 50 is removed, By arranging the plurality of slits 40 vertically on the operation cylinder portion 32, a plurality of pairs of pushing plate portions 42 facing each other in the circumferential direction are provided. Formed.

  This means comprises a booster mechanism for pushing up the inner plug with an outer peripheral wall depending from the outer peripheral portion of the top wall of the conventional inner plug and a tapered slope formed at the proximal end of the mouth and neck. is there.

  The “tapered slope” is formed so that the outer peripheral wall pushed inwardly slides up, and the outer peripheral wall can be pushed in from any radial direction so that it can be pushed all around the mouth and neck. It is provided over. It is desirable that the tapered slope has an angle with respect to the horizontal plane of 45 degrees or less.

  The “inner plug” consists of a normal plug body that hangs a plug tube for tight fitting from the back surface of the top wall having a spout at the center to the inner surface of the mouth and neck, and an outer wall that hangs from the outer periphery of the top wall. And formed. It is desirable to integrally form both of these. In addition, it is desirable to form engagement means for retaining the inner plug, which are engaged with each other, on the inner plug and the container neck of the container body.

The “outer wall” has a function to push up the stopper body of the inner stopper from the neck of the container body by forcibly climbing on the tapered slope by inward pushing, and has a strength that is necessary and sufficient for pushing up ( Rigidity) and elasticity enough to allow inward pushing. Moreover, the outer peripheral wall arrange | positions the lower end whole periphery of the outer peripheral wall near the outer peripheral part of a taper-like slope so that it can push in from arbitrary radial directions. Here, arranging near the outer peripheral portion of the tapered slope includes contacting the outer peripheral portion. A gap as an allowance for pushing the outer peripheral wall is provided between the outer surface of the mouth neck and the inner surface of the outer peripheral wall. Further, this means is provided so that the operation cylinder part 32 cannot be pushed in unless the cap peripheral wall 54 is suspended to the operation cylinder part 32 of the inner plug 20 and the cap 50 is removed. Further, the operation cylinder portion 32 is formed in a plurality of pairs of pushing plate portions 42 facing each other in the circumferential direction by vertically arranging a plurality of slits 40. In this means, the split groove is provided vertically so that the push-in deformation of the operation tube portion is facilitated.

  The second means includes the first means, and the inner plug 20 non-rotatably fits the outer peripheral wall 20b portion excluding the operation tube portion to the corresponding outer surface of the mouth neck portion 8. In addition, the cap 50 is provided with a cap portion 56 fitted to the spout 22 on the back surface of the top plate 52, and a cap peripheral wall 54 suspended from the periphery of the top plate 52 is provided on the outer peripheral wall excluding the operation cylinder portion. 20b part is screwed to the outer surface.

  As described above, this means uses the lower part of the outer peripheral wall 20b as an inward pushing part (operation cylinder part) and the outer peripheral wall part excluding the lower part as a screwed cylinder with the cap peripheral wall. The wall is used both for inward pushing and cap screwing. The lower portion of the outer peripheral wall, which is an inward pushing plate, may be formed thinner than the screw tube portion so as to be easily pushed.

    In this means, when the outer peripheral wall is screwed to or removed from the cap peripheral wall, the outer peripheral wall is not wasted so that the outer peripheral wall does not rotate around the mouth neck portion following the cap peripheral wall. Anti-rotation means for preventing rotation are formed on the inner surface of the outer peripheral wall portion excluding the lower portion and on the outer surface of the mouth / neck portion corresponding portion.

    The third means includes the second means, and one of the outer peripheral wall 20b part inner surface excluding the operation tube part and the corresponding part outer surface of the mouth neck part 8 has a circumferential interval. A plurality of first rotation stop ridges 14 are provided vertically, and at least one second rotation stop ridge 36 that engages with the first rotation stop ridges 14 is provided vertically on the other side.

    This means is configured such that the rotation stop between the outer peripheral wall and the mouth neck portion functions even if the outer peripheral wall is fitted to the mouth neck portion at any circumferential position. That is, one of the plurality of first rotation stopping ridges vertically provided on either the outer peripheral wall inner surface or the mouth / neck outer surface is provided so as to engage with the second engagement ridge.

The invention according to the first means has the following effects.
○ Because the inner plug body can be removed from the mouth and neck by pushing the outer wall 20b hanging from the outer periphery of the inner plug 20 inward, compared to moving the outer wall upward or circumferentially. Easy to operate.
○ Since the inner plug 20 hangs the outer peripheral wall 20b from the outer periphery of the top wall of the inner plug 20, the top wall and the plug cylinder, which are the main part of the inner plug, and the outer peripheral wall which is the means for pushing up the main part are integrated. As a single component, the number of members does not increase.
○ Since the cap peripheral wall 54 is suspended up to the operation tube portion 32 of the inner plug 20, the operation tube portion 32 cannot be pushed inward unless the cap 50 is removed. For example, when the container is dropped on the floor There is no inconvenience that the operation tube portion 32 hits another object and the cap 50 is detached from the mouth neck portion 8 together with the inner plug 20.
○ Since the operation cylinder portion 32 is formed in a plurality of pairs of push plate portions 42 facing each other in the circumferential direction by vertically arranging a plurality of slits 40, the push plate can be easily pushed inward. .

The invention according to the second means has the following effects.
○ Since the operation cylinder portion 32 can be pushed inward, and the cap peripheral wall 54 is screwed into the outer surface of the outer peripheral wall 20b excluding the operation cylinder portion, one outer peripheral wall 20b is used for inward pushing and cap screwing. It can be used for two purposes, and the structure can be simplified.
○ Since the outer peripheral wall 20b portion excluding the operation cylinder portion is non-rotatably fitted to the corresponding outer surface of the mouth / neck portion 8, the outer peripheral wall 20b is wasted when the cap peripheral wall is screwed into and unscrewed from the outer peripheral wall 20b. Therefore, the cap peripheral wall can be smoothly attached to and detached from the outer peripheral wall 20b.

  According to the third aspect of the invention, a plurality of first rotation stoppers are provided on one of the inner surface of the outer peripheral wall 20b excluding the operation tube portion and the outer surface of the corresponding portion of the mouth-and-neck portion 8 with an interval in the circumferential direction. Since the ridge 14 is provided on the other side and at least one second anti-rotation ridge 36 that engages with the first anti-rotation ridge 14 is provided vertically, the cap peripheral wall 54 is disposed in the circumferential direction with respect to the outer peripheral wall 20b. The cap peripheral wall 54 can be prevented from rotating with respect to the outer surface of the outer peripheral wall 20b regardless of the position, which is convenient.

  1 to 5 show a container with an inner stopper according to an embodiment of the present invention. This container is formed of a container body 2, an inner stopper 20, and a cap 50. Each of these members can be formed of a synthetic resin.

  The container body 2 has a substantially cylindrical mouth-and-neck portion 8 erected from the trunk portion 4 via a substantially flat shoulder portion 6.

  The mouth-and-neck part 8 stands up from a mouth-and-neck lower part 8a through an upward step part 10, and has a small outer-diameter mouth-and-neck upper part 8b. An engaging recess 12 is provided around the portion. Further, on the outer surface of the mouth and neck portion between the upward stepped portion 10 and the engaging recess 12, a plurality of first rotation stop projections 14 are vertically arranged at equal intervals as shown in FIG. 2. Yes.

    The base end portion of the mouth / neck portion 8 is formed as a frustoconical or shallow tapered cylindrical raised wall that is gently inclined upward and inward from the inner peripheral end of the shoulder portion 6, and the outer periphery of the base end portion The surface is a tapered slope 16. The tapered inclined surface is inclined at a certain angle (about 30 degrees in the illustrated example) with respect to the horizontal plane when viewed from any radial direction of the mouth-and-neck portion 8.

  The inner plug 20 is formed of a plug body 20a and an outer peripheral wall 20b.

  The plug body 20a is formed by hanging a short plug cylinder 26 from the back surface of the top wall 24 having a spout 22 in the center, and this plug cylinder 26 is fitted in a liquid-tight manner to the upper end of the neck 8. ing.

  The outer peripheral wall 20b is suspended from the outer periphery of the top wall 24 of the inner plug 20, and the lower end portion of the outer peripheral wall is disposed in the vicinity of the outer peripheral portion of the tapered inclined surface 16.

  The illustrated outer peripheral wall 20b is formed of a connecting cylinder part 28, a screwing cylinder part 30, and an operation cylinder part 32. The connecting cylinder part 28 hangs down from the outer peripheral part of the top wall 24 along the outer surface of the mouth neck part upper part 8b, and is formed as a thin elastic cylinder. The threaded tube portion 30 is formed as a thick tube portion that is continuous with the connecting tube portion 28 and expands to a large outer diameter via a stepped portion 34, and a screw thread is formed on the outer surface of the threaded tube portion 30. Is forming. An engaging protrusion 38 that fits into the engaging groove 12 is provided around the upper end of the inner surface of the screw tube 30. The threaded cylinder portion below the engaging projection 38 is formed to have a slightly larger inner diameter than the outer diameter of the mouth neck portion lower portion 8a, and an appropriate number (four in the illustrated example) is formed on the inner surface of the threaded cylinder portion. A second rotation stop projection 36 is provided vertically. Further, a gap A is provided between the inner surface of the second anti-rotation ridge 36 and the outer surface of the mouth neck portion upper portion 8b so as to smoothly push up the outer peripheral wall 20b. The operation tube portion 32 is suspended from the outer edge portion of the lower surface of the threaded tube portion 30 with a gap B between the operation tube portion 32 and the lower neck portion 8a. The outer diameter of the operation tube portion 32 is larger than the outer diameter of the threaded tube portion 30. Further, the inner edge of the lower end surface of the operation cylinder portion 32 is in contact with the outer peripheral portion of the tapered slope 16 described above. A plurality (four in the illustrated example) of the slits 40 are provided vertically on the operation cylinder portion 32, and the operation cylinder portion 32 is divided into a pair of front and rear and a pair of left and right pushing plate portions.

  The cap 50 is formed in a top tube shape in which the cap peripheral wall 54 is suspended from the outer peripheral portion of the top plate 52, and the stopper portion 56 suspended from the center of the back surface of the top plate 52 is liquid-tightly placed in the spout 22. It is fitted. The cap peripheral wall 54 hangs down to substantially the same height as the lower end of the operation tube 32.

  In the above configuration, when the cap 50 is rotated in the opening direction from the state shown in FIG. 1, the outer peripheral wall 20b is prevented from rotating with respect to the neck 8 by the first and second rotation stop ridges 14, 36. The cap peripheral wall 54 can be screwed off from the threaded cylindrical portion 30 of the outer peripheral wall 20b. In this state, the content liquid can be poured out from the spout.

  When the content liquid is low, after removing the cap 50, as shown by the arrow in FIG. 4, when a pair of pushing plate portions 42 opposite to each other are pushed in, the lower end portions of these pushing plate portions 42 are moved. Since it rubs up to the inner peripheral side of the tapered inclined surface 16 and rises as a whole outer peripheral wall 20b while slightly bending at the upper and lower end portions of the threaded cylindrical portion 30, the engagement groove 12 and the engagement protrusion 38 The engagement is released. When the operation tube portion 32 is further pulled up in this state, the plug tube 26 can be pulled out from the inner surface of the mouth neck portion 8. In this way, the entire upper surface of the mouth-and-neck portion 8 can be opened, and the content liquid can be filled from the refill liquid storage container into the container of the present application. After the filling operation, the inner plug 20 may be sequentially fitted to the outer surface of the mouth-and-neck portion 8 and the cap 50 may be fitted to the outer surface of the outer peripheral wall 20b of the inner plug 20 in the reverse order. When the inner plug 20 is fitted to the neck 8, a plurality of first rotation stop ridges 14 are provided vertically on the outer surface of the mouth neck 8. The inner plug 20 can be prevented from rotating with respect to the mouth-and-neck portion 8 even if set in different circumferential directions.

It is a principal part longitudinal cross-sectional view of the container which concerns on embodiment of this invention. It is a cross-sectional view in the II-II line of the container of FIG. It is a disassembled perspective view of the container of FIG. It is a longitudinal cross-sectional view of the state which removed the cap from the container of FIG. It is explanatory drawing of the operation | work which removes an inner plug further from FIG.

Explanation of symbols

2 ... Container 4 ... Body 6 ... Shoulder 8 ... Mouth and neck 8a ... Same lower part 8b ... Same upper part
10 ... Upward stepped portion 12 ... engaging recess 14 ... first rotation stop projection 16 ... tapered slope
20 ... inner plug 20a ... plug body 20b ... outer wall 22 ... outlet 24 ... top wall 26 ... plug
28 ... Connecting cylinder part 30 ... Screwing cylinder part 32 ... Operation cylinder part 34 ... Step part 36 ... Second rotation stop ridge
38 ... engaging protrusion 40 ... cutting 42 ... pushing plate part 50 ... cap 52 ... top plate
54 ... Cap wall 56 ... Plug part

Claims (3)

In the mouth and neck (8 ) of the container body (2), the top wall (24) with the spout (22 ) is provided with an inner plug (20) fitted with a plug tube (26) hanging from the back surface. In the container with an inner stopper in which the outlet (22) is closed with a cap (50) , the outer peripheral surface of the proximal end of the mouth-neck part ( 8 ) is a tapered inclined surface ( 16 ) with a small upper end, and the inner stopper ( 20 ) The lower end of the outer peripheral wall ( 20b ) suspended from the outer periphery of the top wall ( 24 ) is arranged in the vicinity of the outer peripheral portion of the tapered slope ( 16 ), and the periphery of the operation cylinder portion ( 32 ) formed at the lower portion of the outer peripheral wall ( 20b ). When any part of the direction is pushed inward, the inner plug ( 20 ) is pushed up and removed by climbing onto the tapered slope ( 16 ), and the cap peripheral wall (54) The operation tube part (32) is suspended from the operation tube part (32) of the stopper (20) so that the operation tube part (32) cannot be pushed in unless the cap (50) is removed. Create tubular portion (32), by Tate設multiple cut-split (40), characterized in that formed on the pushing plate pairs facing each other in the circumferential direction (42), with the inner plug container. It said in plug (20) is fitted in a rotationally fixed manner to the corresponding parts the outer surface of the peripheral wall except operating tube portion (32) (20b) portions neck (8), also, the cap (50 ) is configured to attached the spout (22) to the fitted plug portion (56) top plate (52) on the back, the top plate (52) depending from the peripheral edge cap wall (54), the operating tube The container with an inner stopper according to claim 1, wherein the container is screwed onto the outer surface of a portion of the outer peripheral wall ( 20b ) excluding the portion (32) . On one of the inner surface of the outer peripheral wall ( 20b ) excluding the operation tube portion (32) and the outer surface of the corresponding portion of the mouth-neck portion ( 8 ) , a plurality of first rotation stop protrusions ( 14), the other, characterized in that at least one second detent ridges (36) that engages the first detent ridges (14), respectively and Tate設, in the second aspect Container with stopper.

Images