JP2014144780A - Sealing device for container - Google Patents

Abstract

An object of the present invention is to provide a compact sealing device without detaching a belt-shaped ring for confirmation of opening.
(A) An inner stopper 10 having a separation part 12 that separates and forms an opening; and (b) covering the inner stopper 10 and moving the separation part 12 in a direction in which the separation part 12 is pushed into the container 1. The sealing device 100 includes an upper lid 20 that separates the separation portion 12, and (c) the upper lid 20 is offset in the radial direction with respect to the cylindrical peripheral wall portion 20a and the lower end of the peripheral wall portion 20a. And a belt-like ring 25 supported by the lower end of the peripheral wall portion 20a in a state of projecting downward, and (d) the belt-like ring 25 is moved in a direction in which the upper lid 20 is pushed into the container 1, thereby To fit.
[Selection] Figure 2

Description

  The present invention relates to a container sealing device mounted on a bottle-shaped container.

  As a known cap structure (sealing device) used for a container with a lid, an inner stopper and an upper lid are provided, and in the inner stopper, a cylindrical part fitted to the opening of the bottle and a score at the tip thereof There are those provided with a separating portion that is continuously provided via them (see FIGS. 10 to 13 of Patent Document 1). In this cap structure, the upper lid is screwed into the opening of the bottle to separate the separating portion from the cylindrical portion of the inner plug, and the separating portion is held by an annular protrusion extending downward from the upper end inner wall of the upper lid. Yes. According to this cap structure, the cap can be easily opened by simply screwing the upper lid into the container mouth, and the separation part separated by the opening is held on the upper end inner wall of the upper lid as a seal after opening. Since it can be made to function, it is extremely easy to use, that is, easy to use.

  However, the inner plug is covered with the upper lid only in the structure in which the separating portion is separated from the cylindrical portion of the inner plug as described above and the separation portion is held by the annular protrusion extending downward from the upper end inner wall of the upper lid. Therefore, it cannot be confirmed from the outside whether or not it is opened. Therefore, in the cap structure of Patent Document 1, a virgin ring (band-shaped ring) is continuously provided at the lower end of the upper lid, and a bulging portion that bulges outward in the radial direction is formed over the entire circumference of the base end of the opening of the container. ing. In the cap structure, when the separation part is separated from the cylindrical part by rotating in the direction in which the upper cover is tightened, the virgin ring is expanded by the bulging part, and thereby the virgin ring is detached from the upper cover. Accordingly, whether or not the virgin ring is opened can be confirmed by whether or not the virgin ring is detached from the upper lid.

  However, in the case of the cap structure of Patent Document 1, there is a problem that a bulging part for detaching the virgin ring from the upper lid is required, and the container mouth part is bulky in the height direction. In addition, the detached virgin ring may become trash and be awkward at the disposal location. On the other hand, in order to eliminate the generation of dust, it is only necessary to provide an annular recess for accommodating the detached virgin ring below the bulging portion. By such an annular recess, the container mouth is further elongated in the vertical direction. There is a risk of becoming.

International Publication No. WO2007 / 126062

  An object of the present invention is to provide a compact sealing device without detaching the strip-shaped ring for confirming opening.

  In order to solve the above-described problems, a sealing device according to the present invention includes (a) an inner plug having a separation part that separates and forms an opening, and (b) an inner plug that covers the inner plug and has a separation part for the container. An upper lid that separates the separation portion by moving in the pushing direction, and (c) the upper lid is offset in the radial direction with respect to the cylindrical peripheral wall portion and the lower end of the peripheral wall portion (D) the belt-shaped ring is fitted to the circumferential wall portion by moving the upper lid in a direction to push the container into the container. Match.

  According to the container sealing device, when the belt-like ring protruding from the peripheral edge of the upper lid in the non-opened state is in the opened state, it is fitted so as to overlap the peripheral wall portion of the upper lid. Therefore, the open state can be visually recognized from the outside as the appearance state of the belt-like ring. Further, at that time, the belt-like ring is fitted and held on the peripheral wall portion of the upper lid, so that it can be prevented from becoming dust.

  Moreover, in the specific aspect or viewpoint of this invention, a strip | belt-shaped ring is connected with a surrounding wall part via the scheduled separation part, and can be isolate | separated from an upper cover. In this case, the peripheral wall portion and the belt-like ring can be manufactured as an integral member. Thereby, the judgment of the presence or absence of the opening which is the first opening is made reliable, and the manufacturing cost of the sealing device can be suppressed.

  Moreover, in another viewpoint of this invention, an upper cover has a step-shaped annular notch which accommodates a strip | belt-shaped ring in the lower end surrounding surface of a surrounding wall part. In this case, since the separated band-shaped ring is accommodated in the annular cutout formed in the upper lid peripheral wall portion, the cap can be further downsized.

  In yet another aspect of the present invention, the scheduled separation portion includes a plurality of thin connecting portions and a slit formed between the pair of connecting portions. In this case, the force for separating the belt-shaped ring can be further reduced.

  Further, in still another aspect of the present invention, the belt-like ring has a convex portion on at least one of the inner surface and the upper portion, and the peripheral wall portion is in an open display state in which the belt-like ring is fitted to the peripheral wall portion, It has a concave part that can accommodate the convex part. In this case, the belt-like ring can be stably supported on the peripheral wall portion. For example, when a convex part is formed by the burr | flash produced when isolate | separating a strip | belt-shaped ring from a surrounding wall part, the said burr | flash can be accommodated in a recessed part, utilizing it for latching.

  Moreover, in another viewpoint of this invention, a surrounding wall part has a convex part in at least one part of the surrounding surface fitted to a surrounding wall part in the open display state which the strip | belt-shaped ring fitted to the surrounding wall part. In this case, the contact force between the peripheral wall portion and the belt-like ring becomes strong at the contact portion between the convex portion of the peripheral wall portion and the belt-like ring in the open display state. Thereby, a belt-like ring can be made hard to come off from a peripheral wall part.

  In still another aspect of the present invention, the belt-shaped ring has a convex portion on at least one of the inner surface and the upper portion, and the convex portion supports the belt-shaped ring in the open display state. In this case, even if the belt-shaped ring receives a force in the direction in which the upper lid is tightened (the direction in which the separating portion is pushed), the convex portion of the belt-shaped ring is locked to the convex portion of the peripheral wall portion. can do.

  Moreover, in another viewpoint of this invention, a strip | belt-shaped ring has a recessed part in an inner surface, and the convex part of a surrounding wall part latches a recessed part in the opening display state, and supports a strip | belt-shaped ring. In this case, the belt-like ring can be reliably held on the peripheral wall portion.

It is a section perspective view for explaining the container sealing device concerning the present invention. It is sectional drawing which showed the state which mounted | wore the top cover with the inner stopper. It is an enlarged view of the A section in FIG. It is a conceptual diagram explaining the separation plan part among the upper lids shown in FIG. It is sectional drawing which showed the state which performed the opening operation of the sealing device. It is an enlarged view of the B section in FIG. It is sectional drawing which showed the state which removed the upper cover from the inside plug after opening. (A), (B) is the elements on larger scale explaining the modification of the upper cover shown in FIG. (A), (B) is the elements on larger scale explaining another modification of the upper cover shown in FIG. (A)-(D) are the elements on larger scale explaining another modification of the upper cover shown in FIG.

  1 to 7 show an embodiment of a sealing device according to the present invention.

  The illustrated sealing device 100 includes an inner plug 10 that forms an opening 2 such as a paper pack that is a container 1 and an upper lid 20 that is attached to the inner plug 10 so as to cover the opening 2 of the inner plug 10. It is configured.

  The inner plug 10 is an integrally molded product made of resin, and includes a cylindrical portion 11 and a separation portion 12 that are locked to the container 1.

  The cylindrical portion 11 of the inner plug 10 forms an extraction port for the contents of the container 1 shown in FIG. 2, and has a thick disc portion 13a projecting radially outward at the lower end, and the disc portion. And a thin annular plate portion 13b projecting radially outward from the peripheral surface of 13a. On the circumferential surface of the disk portion 13a, protruding portions 14 are formed to protrude outward in the radial direction at equal intervals in 4 to 8 locations in the circumferential direction. This protrusion 14 is formed with an interval in the vertical direction from the annular plate 13b. After inserting the peripheral edge of the hole 1a formed in the container 1 between the protruding part 14 and the annular plate part 13b, the annular plate part 13b and the peripheral edge of the hole 1a (see FIG. 3) are welded (for example, heat welding, The inner stopper 10 is attached to the container 1 by ultrasonic welding or the like. Further, a male screw 15 for screwing the upper lid 20 is formed on the outer peripheral surface of the cylindrical portion 11 of the inner plug 10.

  The separation part 12 of the inner plug 10 includes a disk-like flange part 12a and a cylindrical rib 16 that is erected downward on the periphery of the lower surface of the flange part 12a. The flange portion 12a is separated from the inner plug 10 after opening, and is engaged with an annular recess 22 of the upper lid 20 described later. The cylindrical rib 16 is located radially inward of the cylindrical portion 11 so that the outer peripheral surface thereof is in contact with the inner surface of the upper end opening of the cylindrical portion 11 of the inner plug 10. And the outer peripheral surface of the cylindrical rib 16 inclines in the taper shape, The taper surface 16a is continuously provided in the front-end | tip inner peripheral surface 11a of the cylindrical part 11 of the inner plug 10 via the thin part 17. FIG. . The separation part 12 is separated from the tubular part 11 to form the opening 2.

  The upper lid 20 is an integrally molded product made of resin, and includes a cylindrical peripheral wall portion 20a and a ceiling wall 20b. The upper lid 20 covers the inner stopper 10 and separates the separation unit 12 by moving the separation unit 12 in a direction in which the separation unit 12 is pushed into the container 1.

  On the inner peripheral surface of the peripheral wall portion 20a of the upper lid 20, a female screw 21 that is screwed into the male screw 15 of the inner plug 10 is formed. An annular recess 22 that opens radially inward is formed on the inner surface of the peripheral wall portion 20a where it meets the ceiling wall 20b.

  Further, as shown in an enlarged view in FIG. 3, a small-diameter annular notch 23 is formed on the outer peripheral surface of the lower end of the peripheral wall portion 20 a of the upper lid 20 over the entire circumference. The annular notch 23 has a step shape in the peripheral wall portion 20a, and can accommodate a belt-like ring 25 described later. An annular recess 24 is formed at the upper corner of the annular notch 23.

  Furthermore, the upper lid 20 includes a belt-like ring 25. As shown in FIG. 3, the belt-like ring 25 is supported by the lower end of the peripheral wall portion 20 a, that is, the annular notch 23 in a state of being offset radially outward with respect to the peripheral wall portion 20 a and protruding downward. The inner peripheral surface 25 a of the belt-like ring 25 is formed with substantially the same radius as the outer peripheral surface 23 a of the annular notch 23. Further, the outer peripheral surface 25 b of the belt-like ring 25 is formed with a radius that is substantially the same as the outermost peripheral surface S of the peripheral wall portion 20 a excluding the annular notch 23 or a size that does not hinder the operation of the upper lid 20. Further, the belt-like ring 25 is connected to the upper edge of the inner periphery of the peripheral wall portion 20a through the planned separation portion 26. As conceptually shown in FIG. 4, the planned separation portion 26 is composed of a thin connecting portion 26 a and a slit 26 b. In the present embodiment, eight slits 26b are provided. The band-shaped ring 25 is separated from the upper lid 20 by moving the upper lid 20 in a direction of pushing the upper lid 20 into the container 1, and is fitted into the annular notch 23 of the peripheral wall portion 20a. When the belt-like ring 25 is separated from the upper lid 20, as shown in FIG. 6, a convex portion 25 c is formed on the upper portion of the belt-like ring 25 as a trace of the connecting portion 26 a being cut. The convex portion 25 c is accommodated in the concave portion 24 when the belt-like ring 25 is fitted into the annular notch 23.

  The inner plug 10 and the upper lid 20 thus configured are coupled to each other as shown in FIG. 2 by screwing the female screw 21 of the upper lid 20 with the male screw 15 of the inner plug 10. In this state, the inner plug 10 and the upper lid 20 are in a state in which the flange portion 12 a of the separating portion 12 of the inner plug 10 is fitted in the annular recess 22 of the upper lid 20, and the upper lid 20 is loose with respect to the inner plug 10. It is in a restrained state.

  Hereinafter, the opening operation or the opening operation of the sealing device 100 of the above embodiment will be described with reference to FIGS. 2, 5, 6, and 7.

  First, as shown in FIG. 2, the upper lid 20 is in the reference position before the rotation operation of the male screw 15 and the female screw 21, and the separation portion 12 and the cylindrical portion 11 are in a coupled state by the thin portion 17, The opening 2 is in a sealed state.

  When the upper lid 20 is rotated in this direction, that is, in the clockwise direction, the separating portion 12 of the inner plug 10 is pushed down accordingly. Then, the thin portion 17 is broken.

  On the other hand, the belt-like ring 25 of the upper lid 20 abuts on the disk portion 13a of the inner plug 10 and cannot be lowered further. In this state, when the upper lid 20 is lowered, the separation planned portion 26 is cut, and the belt-like ring 25 is accommodated in the annular notch 23 as shown in FIG. And the convex-shaped part 25c of the to-be-separated part 26 which generate | occur | produces by the cutting | disconnection of the strip | belt-shaped ring 25 is accommodated in the recessed part 24 of the upper cover 20, as shown in FIG. Therefore, the belt-like ring 25 is held on the upper lid 20 not only by frictional resistance with the peripheral surface of the annular notch 23 but also by engagement of the convex portion 25 c with the concave portion 24.

  In this state, when the upper lid 20 is rotated in the loosening direction, that is, counterclockwise, the flange portion 12 a of the separation portion 12 is engaged with the annular recess 22 of the upper lid 20. As shown in FIG. 7, it is moved away from the cylindrical portion 11 of the inner plug 10.

  As described above, the inner stopper 10 is opened, and the liquid in the container 1 can be poured out from the opening 2. Further, the upper lid 20 is detachable from the container 1.

  Further, after opening the plug, when the female screw 21 of the upper lid 20 is screwed into the male screw 15 of the inner plug 10 and the upper lid 20 is rotated clockwise, the separating portion 12 held by the upper lid 20 is moved to the inner plug 10. The upper end inner peripheral surface 11b of the cylindrical portion 11 is fitted, and the opening 2 is closed. At this time, the separation unit 12 functions as a seal plug.

  According to the container sealing device described above, when the belt-like ring 25 protruding from the peripheral edge of the upper lid 20 in the non-opened state is in the opened state, it is fitted so as to overlap the peripheral wall portion 20a of the upper lid 20. Is done. Therefore, the opened state can be visually recognized from the outside as the appearance state of the belt-like ring 25. At that time, since the belt-like ring 25 is fitted and held on the peripheral wall portion 20a of the upper lid 20, it can be prevented from becoming dust.

  The container sealing device according to the present embodiment has been described above, but the container sealing device according to the present invention is not limited to the above. For example, in the above-described embodiment, sealing is achieved by bringing the outer peripheral surface of the cylindrical rib 16 of the separating portion 12 into contact with the upper inner peripheral surface 11b of the cylindrical portion 11. A seal may be achieved by bringing the inner peripheral surface of the cylindrical member 11 into contact with the outer peripheral surface of the upper end of the cylindrical portion 11.

  Moreover, in the said embodiment, you may color the color of the strip | belt-shaped ring 25 with the color different from the color of the surface of the surrounding wall part 20a by which the strip | belt-shaped ring 25 is fitted and supported at least among the upper lids 20. In this case, since the color of the peripheral wall portion 20a is hidden by the belt-like ring 25 in a state where the separated belt-like ring 25 is held by the peripheral wall portion 20a that supports it, the sealing device 100 can be used in the appearance of the upper lid 20. It is possible to clearly see whether or not is opened.

  Moreover, in the said embodiment, as shown to FIG. 8 (A), the annular notch 23 does not need to be provided. That is, the peripheral wall portion 20a of the upper lid 20 may not have a step. In this case, as shown in FIG. 8 (B), when the belt-like ring 25 is fitted to the peripheral wall portion 20a, the lower portion of the upper lid 20 protrudes in the radial direction. Moreover, if the recessed part is provided in the outer peripheral surface of the surrounding wall part 20a, the convex-shaped part 25c of the strip | belt-shaped ring 25 can also be engage | inserted.

  In the above embodiment, the annular notch 23 may be provided with slits, grooves, concave shapes, pattern shapes, and the like.

  Moreover, in the said embodiment, as shown to FIG. 9 (A), the surrounding wall part 20a of the upper cover 20 and the strip | belt-shaped ring 25 have isolate | separated previously, and a part of strip | belt-shaped ring 25 is cyclic | annular cutting in the state before opening. It may be fitted in the notch 23. In this case, if the convex part 125c is provided on the inner peripheral surface 25a of the belt-like ring 25 and fitted into the concave part 24, the belt-like ring 25 can be reliably held on the peripheral wall part 20a. In addition, as long as the convex part 125c is formed in the position corresponding to the recessed part 24, you may connect cyclically | annularly or may isolate | separate several. Moreover, if the recessed part 124 is provided also in the lower part of the annular notch 23, the strip | belt-shaped ring 25 can be stably supported by the surrounding wall part 20a before opening.

  Moreover, in the said embodiment, you may provide the convex part 127, without providing the recessed part 24 in the surrounding wall part 20a of the upper cover 20. As shown in FIG. That is, as shown in FIG. 10A, the peripheral wall portion 20a is a convex portion on at least a part of the peripheral surface SS that is fitted to the peripheral wall portion 20a in a state where the band-shaped ring 25 is fitted to the peripheral wall portion 20a. 127. In this case, as shown in FIG. 10B, when the belt-like ring 25 is fitted to the peripheral wall portion 20a, the convex portion 25c of the belt-like ring 25 is locked to the convex portion 127 of the peripheral wall portion 20a. 25 is held by the peripheral wall portion 20a. Further, as shown in FIG. 10C, a concave portion 128 may be provided at a position corresponding to the convex portion 127 of the peripheral wall portion 20a on the inner surface of the belt-like ring 25. In this case, as shown in FIG. 10 (D), the convex portion 127 and the concave portion 128 are locked in the unplugged display state, and the belt-like ring 25 is securely held by the peripheral wall portion 20a. 10 (A) to 10 (D), the concave portion 24 may be provided in the peripheral wall portion 20a together with the convex portion 127.

  Moreover, in the said embodiment, the number and magnitude | size of the slit 26b of the scheduled separation part 26 can be changed suitably. In addition, the separation planned portion 26 is constituted by the thin connecting portion 26a and the slit 26b. However, if the belt-like ring 25 can be separated from the peripheral wall portion 20a when the upper lid 20 is pushed into the container 1, the separation planned portion The whole 26 may be a thin connecting portion.

  Moreover, in the said embodiment, although it was set as the structure which welds the inner stopper 10 to the periphery of the hole 1a of the container 1, the attachment method to the container 1 of the inner stopper 10 can be changed suitably. For example, the inner plug 10 may be provided with a fitting portion or a screwing portion for fixing to the container 1, and the inner plug 10 may be attached to the container 1.

  DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Opening part, 10 ... Inner plug, 11 ... Cylindrical part, 12 ... Separation part, 20 ... Upper lid, 24, 124 ... Recessed part, 25 ... Strip ring, 25c, 125c ... Convex part, 26 ... Separation scheduled part, 26a ... connecting part, 26b ... slit, 100 ... sealing device

Claims (8)

An inner plug having a separation part that separates and forms an opening;
An upper lid that separates the separation part by covering the inner plug and moving the separation part in a direction to push the separation part into the container;
A sealing device comprising:
The upper lid includes a cylindrical peripheral wall portion, and a belt-like ring that is supported on the lower end of the peripheral wall portion in a state of being radially offset with respect to the lower end of the peripheral wall portion and protruding downward.
The band-shaped ring is fitted into the peripheral wall portion by moving the upper lid in a direction in which the upper lid is pushed into the container.   2. The container sealing device according to claim 1, wherein the belt-shaped ring is connected to the peripheral wall portion via a scheduled separation portion and is separable from the upper lid.   3. The container sealing device according to claim 1, wherein the upper lid has a stepped annular notch that accommodates the belt-shaped ring on a lower peripheral surface of the peripheral wall portion. .   The said isolation | separation plan part has a some thin connection part and the slit formed between a pair of connection parts, The sealing device of the container as described in any one of Claim 1 to 3 characterized by the above-mentioned. . The belt-like ring has a convex part on at least one of the inner surface and the upper part,
The said surrounding wall part has a recessed part which can accommodate the said convex part in the opening display state which the said ring-shaped ring fitted to the said surrounding wall part, The any one of Claim 1 to 4 characterized by the above-mentioned. The container sealing device according to Item.   The said surrounding wall part has a convex part in at least one part of the surrounding surface fitted to the said surrounding wall part in the opening display state which the said strip | belt-shaped ring fitted to the said surrounding wall part. The container sealing device according to any one of the above. The belt-like ring has a convex part on at least one of the inner surface and the upper part,
The container sealing device according to claim 6, wherein the convex portion supports the belt-shaped ring in the open state. The belt-like ring has a recess on the inner surface,
The said convex part latches the said recessed part in the said opening indication state, and supports the said strip | belt-shaped ring, The sealing device of the container of Claim 6 characterized by the above-mentioned.

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