JP2018020820A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container that can be opened by either rotating or pulling a cap.SOLUTION: A packaging container 100 includes a cylindrical container main body 300 which has an opening part at one end thereof and has a bottom part at the other end, and a cap 200 with a cylindrical peripheral wall which covers the opening part to close the container main body. The cap comprises a plurality of first dome-shaped protrusions 240 formed side by side in a circumferential direction on an inner peripheral surface of the peripheral wall. The container main body comprises, on an outer peripheral surface of the container main body, a first projection 310 extending in the circumferential direction and a plurality of second protrusions 330 formed side by side in the circumferential direction between the first projection and the bottom part. The second protrusions are formed in a prescribed length from a surface at the bottom part side of the first projection toward the bottom part. A length from the outer peripheral surface of the container main body and a width in the circumferential direction of the container main body gradually reduce as approaching the bottom part. The container is closed by covering the container main body with the cap so that the first protrusions get over the first projection to be positioned between the second protrusions.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging container.

  Patent Document 1 discloses a packaging container that houses a test piece used for blood or urine analysis. This packaging container can protect the contents from moisture by storing a desiccant that absorbs moisture in the air and moisture in the air that enters from the outside, and keeps the inside always dry.

  In addition, the undercut and the fitting protrusion are fitted to each other including a cylindrical container body having an undercut formed on the outer peripheral surface and a cap having a fitting protrusion that can be fitted to the undercut on the inner surface of the peripheral wall. A packaging container as shown in FIG. Such a packaging container can be opened by pulling a cap from the container body.

JP 2002-274576 A

  However, a packaging container that is closed using an undercut has a problem in that it is difficult to distinguish it from a packaging container that is closed by rotating a cap and screwing a screw thread.

  In the case of a packaging container that is closed using an undercut, depending on the shape, it is difficult to grasp the cap with a finger, and a large force is required for opening, which may make opening difficult.

  The present invention has been made in view of such problems, and an object thereof is to provide a packaging container that can be opened by rotating or pulling a cap.

  A packaging container including a cylindrical container body having an opening at one end and a bottom at the other end, and a cap having a cylindrical peripheral wall covering the opening and closing the container body, A plurality of dome-shaped first protrusions formed side by side on the inner peripheral surface of the peripheral wall in the circumferential direction, and the container body has a first ridge extending in the circumferential direction on the outer peripheral surface of the container body, and A plurality of second protrusions formed in a circumferential direction between the first protrusion and the bottom, wherein the second protrusion is directed from the bottom surface of the first protrusion toward the bottom; The height from the outer peripheral surface of the container main body and the width in the circumferential direction of the container main body are reduced as approaching the bottom, the container main body is covered with a cap, and the first protrusion is the first protrusion. A packaging container that covers the ridge and closes by being positioned between the second protrusions.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging container which can be opened also by rotating a cap and pulling can be provided.

The perspective view of the packaging container which concerns on embodiment of this invention The front view of the packaging container which concerns on embodiment of this invention The figure which shows the mode of closure of the packaging container which concerns on embodiment of this invention The figure which shows the mode of the opening of the packaging container which concerns on embodiment of this invention The front view which shows the modification of the cap which concerns on embodiment of this invention The front view which shows the modification of the cap which concerns on embodiment of this invention Perspective view of a packaging container according to the prior art

  A packaging container 100 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view of the packaging container 100 in an opened state. FIG. 2 shows a front view of the packaging container 100 in a closed state. In FIG. 1 and FIG. 2, a part of the configuration is omitted to clarify the structure of the packaging container 100. The omitted portion is indicated by hatching the cross section. Furthermore, in the following description, for the sake of convenience, the vertical direction in a state where the packaging container 100 is upright is defined as the vertical direction.

  The packaging container 100 includes a container main body 300 and a cap 200 that closes the container main body 300 by being attached to an opening at one end of the container main body 300. Moreover, the container main body 300 can insert the desiccant container 400 into the bottom.

(cap)
The cap 200 includes a disk-shaped top plate 220 and a peripheral wall 230 that is suspended from the outer edge of the top plate 220. In the vicinity of the lower end of the inner peripheral surface of the peripheral wall 230, a plurality of first protrusions 240 are formed side by side in the circumferential direction. The first protrusion 240 has a dome shape protruding from the inner peripheral surface of the peripheral wall 230. As will be described later, the first protrusion 240 contacts each part of the container main body 300 when opening and closing. For this reason, when a load is locally applied at the time of opening and closing, there is a possibility that the shape of the cap 200 is distorted and the operability of the cap 200 is deteriorated. In order to prevent this, it is preferable to form three or more first protrusions 240 to distribute the load. For the same reason, the plurality of first protrusions 240 are preferably formed on the inner peripheral surface of the peripheral wall 230 at equal intervals.

  Furthermore, an inner ring 250 that is suspended from the top plate 220 is formed on the inner periphery of the peripheral wall 230 of the cap 200. As shown in FIG. 2, the inner ring 250 is fitted to the inner peripheral surface of the opening of the container main body 300 at the time of closing to improve the sealing performance of the packaging container 100. By covering the container body 300 with the cap 200 using the outer peripheral surface of the container body 300 as a guide, the inner ring 250 can be fitted to the container body 300 without being inclined from above. In order to further reduce the inclination, the distance D1 from the lower surface of the top plate 220 of the cap 200 to the lower end of the peripheral wall 230 is preferably larger than the distance D2 from the lower surface of the top plate 220 to the lower end of the inner ring 250. It is preferably 3 times or more.

  The cap 200 can be manufactured, for example, by injection (injection) molding. The cap 200 may be made of an olefin resin such as polypropylene resin or high density polyethylene resin.

(Container body)
The container body 300 has an opening at the upper end and a bottom at the lower end. On the outer peripheral surface of the container main body 300, a first ridge 310, a plurality of second protrusions 320, and a second ridge 330 are formed from the opening toward the bottom. As shown in FIG. 2, in a state in which the packaging container 100 is closed, the first protrusion 240 is located between the two adjacent second protrusions 320 below the first protrusion 310. . At this time, the upper end of the container body 300 may be in contact with the top plate 211 of the cap 200.

  The first ridge 310 protrudes from the outer peripheral surface of the container main body 300 and is formed to extend the outer peripheral surface of the container main body 300 in the circumferential direction. The height of the first protrusion 310 in the radial direction does not come into contact with the peripheral wall 230 of the cap 200 in a state where the packaging container 100 is closed, but when the container main body 300 is closed, the cap 200 is pulled and opened. At this time, the height is set to be in contact with the first protrusion 240.

  The second protrusion 320 protrudes from the outer peripheral surface of the container main body 300, has a predetermined length from the surface on the bottom side of the first protrusion 310 toward the bottom, and is high from the outer peripheral surface of the container main body 300. The width in the circumferential direction of the container main body 300 is formed so as to decrease as it approaches the bottom. As shown in FIGS. 1 and 2, the plurality of second protrusions 320 are predetermined so as to make a round around the outer peripheral surface of the container body 300 between the first ridges 310 and the second ridges 330. Are arranged at intervals.

  As an example, as shown in FIG. 2, the second protrusion 320 extends from the vicinity of the outer peripheral end of the first protrusion 310 toward the bottom, and comes from a ridge line 321 that contacts the outer peripheral surface of the container body 300, and the ridge line 321. And a pair of inclined surfaces 322 facing the outer peripheral surface of the packaging container 300. The second protrusion 320 is not limited to this form as long as the height and the width in the circumferential direction of the container body 300 decrease toward the bottom, and can be appropriately set according to the operability required for the cap 200. is there.

  The 2nd protruding item | line 330 protrudes from the outer peripheral surface of the container main body 300, and is formed so that the outer peripheral surface of the container main body 300 may be extended | stretched in the circumferential direction. As shown in FIG. 2, the second ridge 330 is formed to be positioned below the cap 200 in a state where the packaging container 100 is closed. Moreover, the height in the radial direction of the second ridge 330 is formed in the same level as the outer periphery of the peripheral wall 230 in a closed state. By forming the second ridge 330 in this manner, the cap 200 can be protected from an impact from below by the second ridge 330 and can be prevented from being opened due to dropping of the packaging container 100 or the like.

  As the material of the container body 300, olefin resin, acrylonitrile styrene, styrene butadiene, acrylonitrile styrene butadiene, acrylic, polyethylene terephthalate, polycarbonate, or the like can be used.

(Drying agent container)
The desiccant container 400 includes an inner container 410, a desiccant 420 accommodated inside the inner container 410, and a moisture-permeable dustproof sheet 430 that seals the opening of the inner container 410.

  The inner container 410 has a cylindrical shape, one end of which is sealed by a bottom plate, and the other end is opened. The outer peripheral shape and size of the inner container 410 are set such that the inner container 410 can be inserted into the housing portion of the container main body 300 and the outer diameter of the inner container 410 matches the inner diameter of the container main body 300. A groove 440 is formed in the outer peripheral wall of the inner container 410 to connect the open end and the bottom.

  As the desiccant 420, any known or commonly used desiccant can be used as long as the object to be contained is not contaminated and eroded, and is not particularly limited. Specific examples include chemical desiccants such as calcium oxide, calcium chloride, aluminum oxide, and iron powder, and physical desiccants such as aluminum oxide, zeolite, molecular sieve, and silica gel.

  As the moisture-permeable and dust-proof sheet 430, any sheet having moisture permeability and dust-proof property and having a certain strength can be used. Specifically, a nonwoven fabric made of a resin such as polyethylene and polypropylene, a microporous film, and a microporous sheet can be exemplified.

  The desiccant container 400 can be manufactured by housing the desiccant 420 in the inner container 410 and sealing the opening of the inner container 410 with the moisture-permeable and dust-proof sheet 430. A method for sealing the opening of the inner container 410 with the moisture permeable dustproof sheet 430 is not particularly limited, but an example of welding using ultrasonic waves can be given.

  The desiccant container 400 obtained as described above is inserted into the container main body 300. As shown in FIG. 2, the desiccant container 400 is inserted with the moisture-permeable dustproof sheet 430 facing the bottom of the container body 300. Moisture (water) in the packaging container 100 passes through the space between the groove 430 and the inner peripheral wall of the container body 300 and can move to the gap between the moisture-permeable dustproof sheet 420 and the bottom surface of the container body 300. it can. The moisture (water) that has moved to the gap passes through the moisture-permeable dust-proof sheet 420 and is adsorbed by the desiccant 420.

  Next, the function of the 1st protruding item | line 310, the 1st projection part 240, and the 2nd projection part 320 at the time of closing and opening the packaging container 100 is demonstrated. In FIG. 3, the partial side view which shows the mode of the 2nd projection part 320 periphery at the time of closing the packaging container 100, and a front view corresponding to this are shown. In addition, FIG. 4 shows a partial side view and a front view corresponding to the state of the periphery of the second protrusion 320 when the packaging container 100 is opened. In addition, in order to make the positional relationship of each part easy to understand, a part of the peripheral wall 230 of the cap 200 is omitted.

(Closing)
First, the cap 200 is put on the container body, so that the first protrusion 240 comes into contact with the first ridge 310. Further, by pushing the cap 200 toward the bottom of the container body 300, the first protrusion 240 rides on the first ridge 310 as shown in the upper diagram of FIG. At this time, the peripheral wall 230 of the cap 200 is expanded outward within the elastic range by the first protrusion 240 riding on the first ridge 310.

  When the cap 200 is pushed further downward, the first protrusion 240 gets over the first ridge 310. As shown in the upper diagram of FIG. 3, when the second protrusion 320 is located beyond the first protrusion 310, the first protrusion 240 is on the inclined surface 322 of the second protrusion 320. Get on. Then, as a result of the force that the peripheral wall 230 expanded outwardly returns to the original acts on the inclined surface 322, the cap 200 rotates, and the first protrusion 240 is formed in the container body as shown in the lower view of FIG. It moves on the outer peripheral surface of 300, and the packaging container 100 will be in a closed state.

  In addition, when there is no 2nd projection part 320 in the tip which the 1st projection part 240 got over the 1st protruding item | line 310, the 1st projection part 240 does not get on the inclined surface 322, but a container main body It moves on the outer peripheral surface of 300. At this time, the cap 200 moves to the bottom side of the container main body 300 without rotating, and the packaging container 100 is closed.

  In the closed state, the first protrusion 240 has the first protrusion 310 on the upper side and the second protrusions on the left and right. For this reason, the cap 200 is in a state where movement in the upward direction and the circumferential direction is restricted.

(Opening)
First, when the cap 200 in the closed state is rotated in either the left or right direction and the rotation proceeds to a predetermined angle, the first protrusion 240 is formed on the second protrusion 320 as shown in the upper diagram of FIG. It contacts the inclined surface 322. When the rotation of the cap 200 is further advanced, the first protrusion 240 rides on the inclined surface 322 and proceeds toward the ridgeline 321. As a result, until the first protrusion 240 reaches the ridgeline 321, the peripheral wall 230 is expanded outward as the cap 200 rotates.

  The peripheral wall 230 is further expanded outward by pulling the cap 200 upward in a state where the first protrusion 240 is on the ridgeline 321 or on the inclined surface 322 around the ridgeline 321. Then, as shown in the lower diagram of FIG. 4, by pulling up the cap 200 in a state where the peripheral wall 230 is expanded outward to a height close to the height at which the first protrusion 240 rides on the first ridge 310, The first protrusion 240 gets over the first ridge 310.

  When the first protrusion 240 gets over the first ridge 310, there is no restriction on the upward movement and the circumferential movement of the cap 200. As a result, it is possible to open the cap 200 by pulling it upward.

  Thus, by rotating the cap 200 of the packaging container 100 in the closed state and then pulling it upward, the first protrusion 240 can easily get over the first ridge 310 over the peripheral wall 230 of the cap 200. It can be expanded to the height that can be. For this reason, the user can open the packaging container 100 easily by a simple operation.

  The cap 200 in the closed state can be opened by pulling upward without rotating. In this case, since it is necessary to get the first protrusions 240 over the first protrusions 240 without expanding the peripheral wall 230 in advance, the cap 200 is rotated with a larger force than when the caps 200 are opened. The cap 200 must be pulled upward.

(Modification)
In order to make it easier for the user to grasp the cap 200, a knurled lined with a plurality of ridges and ridges may be formed on the outer peripheral surface of the cap 200. 5A and 5B are front views of the cap 200 in which a knurling is formed.

  As described above, the packaging container 100 can be opened by the peripheral wall 230 of the cap 200 expanding outward. For this reason, at the time of opening the plug, it is necessary to deform at least the first protrusion 240 and the peripheral wall 230 around the first protrusion 240 so as to expand outward. Therefore, in order to prevent the deformation of the cap 200 from being prevented by the user grasping the cap 200, the knurling is an area where the first protrusion 240 of the cap 200 is not formed as shown in FIGS. 5A and 5B. Preferably, it is formed on at least a part of the outer peripheral surface of the peripheral wall 230 corresponding to. Note that the type of knurling is not limited to the flat knurling, and an oblique knurling or a twill knurling may be used.

  As described above, according to the packaging container 100, the first protrusion 240 can easily get over the first ridge 310 on the peripheral wall 230 by pulling upward after rotating the cap 200. It can be opened to the height. In addition, the packaging container 100 can be opened by pulling the cap 200 in the closed state upward without rotating the cap 200 over the first protrusions 320. Therefore, according to the present invention, it is possible to provide a packaging container that can be opened by rotating or pulling the cap.

  The present invention can be suitably used as a container for containing food, beverages, medicines and the like.

DESCRIPTION OF SYMBOLS 100 Packaging container 200 Cap 220 Top plate 230 Perimeter wall 240 1st protrusion part 250 Inner ring 300 Container main body 310 1st protrusion 320 Second protrusion 321 Edge line 322 Inclined surface 330 2nd protrusion 400 Desiccant container 410 inner container 420 desiccant 430 moisture permeable dustproof sheet 440 groove (desiccant container)

Claims (3)

A cylindrical container body having an opening at one end and a bottom at the other end;
A packaging container including a cap having a cylindrical peripheral wall covering the opening and closing the container body;
The cap is
A plurality of dome-shaped first protrusions formed side by side in the circumferential direction on the inner peripheral surface of the peripheral wall,
The container body is
Provided on the outer peripheral surface of the container body is a first ridge extending in the circumferential direction and a plurality of second protrusions formed side by side in the circumferential direction between the first ridge and the bottom. ,
The second protrusion is
The first ridge is formed with a predetermined length from the bottom surface to the bottom, and the height from the outer peripheral surface of the container body and the width in the circumferential direction of the container body approach the bottom. Decreases according to
A packaging container in which the cap is put on the container body, and the first protrusion gets over the first protrusion and is positioned between the second protrusions to close the container. The cap has an inner ring that can be fitted to the inner peripheral surface of the opening on the inner periphery of the peripheral wall,
The packaging container according to claim 1, wherein a height of the peripheral wall is three times or more a height of the inner ring.   The packaging container according to claim 1 or 2, wherein the cap has a knurl formed on at least a part of an outer peripheral surface of the peripheral wall corresponding to a region where the first protrusion is not formed.

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