JPWO2013098870A1 - Contact lens packaging container and method of stacking contact lens packaging containers - Google Patents

Abstract

The thickness in the stacking direction when the contact lens packaging containers are stacked can be made smaller than the total thickness of the contact lens packaging containers and the thickness of the flanges of other contact lens packaging containers. To provide a contact lens packaging container having a novel structure and a container body used therefor.
A container body 12 having a recessed portion 20 for storing the contact lens 16 and the preserving liquid 18, a flange-shaped portion 22 extending from the peripheral edge of the recessed portion 20 in the outer peripheral direction, and a cover sheet 14 covering the opening of the recessed portion 20. In the contact lens packaging container 10, which is stored in a state where the container main body 12 is overlapped with another container main body 12, a recess 32 is formed in the extending portion 27 of the flange-shaped portion 22. The bottom outer surface 34 of the recess 20 of the container body 12 is accommodated in the recess 32 of the other container body 12 when the container body 12 is overlapped with the other container body 12.

Description

  The present invention is a contact lens packaging container in which a contact lens, particularly a disposable soft contact lens and a hydrophilic soft contact lens made of HEMA (hydroxyethyl methacrylate) and silicon hydrogel are housed in a sealed state together with a storage solution, The present invention relates to a container body used for the contact lens packaging container, and a contact lens packaging container stacking method performed when the contact lens packaging container is accommodated in a secondary packaging container such as a carton.

  In recent years, an increasing number of contact lenses are used in a manner that is disposable (one day) or periodically replaced every week, and the number of contact lenses provided to users has increased dramatically. doing. The contact lens provided to the user is stored in a so-called primary packaging container that is sealed in a sterilized state together with a preservation solution for each sheet, and then a plurality of primary packaging containers are stacked to form a so-called secondary packaging such as a carton. It is housed in containers and distributed and shipped to retail stores and users. For example, the one shown in FIGS. 3 to 9 of JP-A-8-5971 (Patent Document 1) is a primary packaging container, and the one shown in FIGS. 1 and 2 of Patent Document 1 is a secondary packaging. It is a container.

  By the way, the storage location of secondary packaging containers at the manufacturing stage and retail stores is limited. For the purpose of reducing distribution costs and storage costs, the thickness in the stacking direction when the primary packaging containers are stacked ( Various attempts have been made to reduce the height of the secondary packaging container by reducing the height. For example, in Patent Document 1, a cover sheet is provided for a container main body that includes a hollow portion that contains a contact lens and a preservative solution, and a substantially flat flange-shaped portion that extends from the peripheral edge of the hollow portion toward the outer periphery. A contact lens packaging container is disclosed as a primary packaging container having a structure in which the openings of the depressions are covered fluid-tightly by overlapping them. In this contact lens packaging container, the flange-like portion is extended greatly to one side of the hollow portion to form an extending portion, thereby making it easy to grip the container and the like. The thickness in the stacking direction when stacked is reduced. That is, as shown in FIG. 2 of Patent Document 1, one packaging container and the other packaging container are overlapped with the bottom outer surfaces of the recesses facing each other, and the packaging containers rotated 180 ° relative to each other. In this case, the bottom outer surfaces of the recessed portions of the one and other container bodies can be placed on the extending portions of the one and other container bodies. Therefore, compared to the case where the dents of one packaging container and the other packaging container protrude in the same direction, the thickness of the contact lens packaging containers stacked on each other is substantially halved. The secondary packaging container that accommodates them can be made compact.

  However, in the contact lens packaging container described in Patent Document 1, even if the contact lens packaging containers are stacked with the back surfaces (projection sides of the depressions) facing each other and the depressions disposed in the direction of 180 ° are stacked, It is difficult to make the thickness in the alignment direction smaller than the total thickness of the contact lens packaging container plus the thickness of the extension part of the other contact lens packaging container and the cover sheet. Yes, it was not possible to meet the demand for further downsizing.

JP-A-8-5971

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the thickness in the overlapping direction when the contact lens packaging containers are stacked is different from the thickness of the entire contact lens packaging container. It is an object of the present invention to provide a contact lens packaging container having a novel structure and a container body used therefor, which can be made smaller than the value obtained by adding the thicknesses of the flange portion and the cover sheet of the contact lens packaging container.

  Furthermore, another object of the present invention is to provide a novel method for stacking contact lens packaging containers that can be advantageously performed using such a contact lens packaging container.

  Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

  That is, the first aspect of the present invention relating to a contact lens packaging container is a container having a recess that contains a contact lens and a preservative solution, and a substantially flat flange-like portion that extends from the peripheral edge of the opening to the outer periphery. A main body and a cover sheet that overlaps the container main body and covers the opening of the recess, and the cover sheet is fixed around the opening of the recess so as to be peeled around the entire periphery. In the contact lens packaging container, the container body is configured to be stored in a state where the contact lens and the preservative liquid are sealed in the recess, and the container body is overlapped with another container body. The flange-shaped portion has an extending portion that extends to one side of the recessed portion, and a recess is formed in the extending portion, and the container body is the other container body. And superimposed When it is a tube, in which the outer bottom surface of the depressions viewed portion of the container body is adapted to be accommodated in the recess of the other container body.

  According to the contact lens packaging container structured according to this aspect, when a plurality of contact lens packaging containers are stacked on top of each other and accommodated in a secondary packaging container such as a carton, one container is distributed. The bottom part outer surface of the hollow part of a main body can be accommodated in the recess of the other container main body. Thereby, the height of the stacked contact lens packaging containers in the overlapping direction can be reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. Therefore, the secondary packaging container in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and the distribution cost and storage space can be reduced.

  Here, the recess provided in the extension part is configured by a through-hole penetrating the extension part or a recess part formed in the extension part on the surface on the side where the hollow part protrudes from the flange-like part. can do. Note that the opening area and depth of the recess are appropriately set to a size that can accommodate the outer surface of the bottom in consideration of the radius of curvature of the recess, the thickness of the extension of the flange, and the like.

  Moreover, in the overlapping state of the contact lens packaging container of this aspect, (1) While making one container main body and the other container main body oppose the bottom part outer surfaces of a hollow part, they rotated 180 degrees mutually. A mode in which the bottom outer surfaces of the depressions of the one and the other container bodies are accommodated in the recesses of the one and the other container bodies, and (2) the depressions of the one container body and the other container body. Are opposed to each other while projecting in the same direction, and the containers are overlapped with each other rotated by 180 ° so that the bottom outer surface of the recess of one container body is accommodated in the recess of the other container body. Is included.

  According to a second aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the first aspect, a pair of engaging portions and a locking portion are provided at two locations apart from each other of the container body. When the container main body is overlapped with the other container main body, the engaging portion and the engaging portion provided in the container main body are provided in the other container main body. By being engaged with the engaging portion and the locking portion, respectively, the overlapping state is maintained.

  According to the contact lens packaging container structured according to this aspect, the contact lens packaging containers superimposed on each other can be stably held in an overlapped state, for example, use of contact lenses having different eyesight for both eyes It is possible for a person to carry a pair of contact lenses for left and right eyes in a superposed state and stably carry them on a trip or the like.

  According to a third aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the second aspect, the flange portion of the container body has a side wall portion extending to a side from which the hollow portion protrudes. And the engagement portion is formed on the side wall portion, and further, the flange portion of the container body has the container body connected to the other container body and the bottom of the recess. The engaging portion is provided at a position corresponding to the engaging portion provided on the side wall when the outer surfaces are opposed to each other and are overlapped with each other rotated by 180 °. is there.

  According to the contact lens packaging container structured according to this aspect, the container body of the contact lens packaging container and the container body of another contact lens packaging container are rotated by 180 ° with each other while the bottom outer surfaces of the recesses face each other. Then, the contact lens container can be locked in the overlapped state by engaging the engaging portion of the side wall portion with the protruding locking portion. Accordingly, it is possible to provide a lock mechanism between the contact lens containers with a simple structure, and to improve the portability of the contact lens container.

  According to a fourth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in any one of the first to third aspects, the maximum of the hollow portion from the flange-shaped portion of the container body. The protruding height is 4 to 8 mm.

  According to the contact lens packaging container structured according to this aspect, the protrusion height of the recess is kept small, and the bottom outer surface is accommodated in the recess so that the contact lens container is further superimposed. The height in the overlapping direction can be reduced.

  According to a fifth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in any one of the first to fourth aspects, the concave portion of the container body has a concave shape smaller than a hemisphere. The curvature radius rc in the longitudinal section of the inner surface of the recess is set so as to satisfy the formula: 1.0 ≦ rc / R ≦ 1.2 with respect to the curvature radius R of the front surface of the contact lens. It is what.

  According to the contact lens packaging container structured according to this aspect, the curvature radius rc in the longitudinal section of the inner surface of the recess is set to be 1 to 1.2 times the curvature radius of the front surface of the contact lens: R. Therefore, the entire front surface of the contact lens is accommodated along the inner surface of the recessed portion in a natural stretched state of the contact lens. As a result, the contact lens can be housed stably without being stressed. Moreover, the protrusion height from the flange-shaped part of a hollow part can be suppressed, and it can also avoid that a volume becomes larger than necessary.

  According to a sixth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the fifth aspect, the recess provided in the extending portion of the container body is substantially circular in a plan view. The opening is formed in a shape, and the central axis of the recess is provided so as to be coaxial with the central axis of the recess of the other container body housed in the recess.

  According to the contact lens packaging container structured according to this aspect, when one container body is overlapped with the other container body, the overlapping height is efficiently positioned while advantageously positioning the recesses and the recesses. Can be reduced.

  A seventh aspect of the present invention relating to a contact lens packaging container is the contact lens packaging container described in any one of the first to sixth aspects, wherein the recess of the container body penetrates the extending portion. The through hole is provided in such a size that the bottom outer surface of the recessed portion of the other container body to be overlapped can protrude from the extending portion through the through hole. On the other hand, the cover sheet has a recessed portion that is recessed toward the recessed portion at a portion that covers the opening of the recessed portion.

  According to the contact lens packaging container structured according to this aspect, a plurality of contact lens packaging containers are opposed to each other with the recesses of the container body projecting in the same direction, and the containers are alternately rotated by 180 °. When stacked in a state, it can be advantageously made compact. Specifically, on the bottom contact lens packaging container, the second contact lens packaging container is rotated 180 ° so that the bottom outer surface of the recess of the second contact lens packaging container is the bottom contact lens packaging container. By overlapping the contact lens packaging container so as to penetrate the through hole, the height in the overlapping direction can be reduced.

  Further, the third contact lens packaging container is rotated by 180 ° with respect to the second and overlapped. At that time, the bottom outer surface of the recessed portion of the third contact lens packaging container penetrates the through hole of the second contact lens packaging container and projects downward, but the projection margin is the bottom contact lens packaging. Since the sheet | seat of the hollow part of a container has the hollow part dented by the hollow part side, it can absorb by this hollow part. Thereby, even when a plurality of contact lens packaging containers are alternately stacked in the same direction, the height dimension in the overlapping direction can be advantageously suppressed.

  A first aspect of the present invention relating to a container main body includes a container main body having a hollow portion that contains a contact lens and a preservative solution, and a substantially flat flange-shaped portion that extends from the peripheral edge of the hollow portion toward the outer periphery. A cover sheet that is superimposed on the container body and covers the opening of the recess, and the cover sheet is fixed to the entire periphery of the recess so as to be peelable and is attached to the recess. In the container main body used for the contact lens packaging container in which the contact lens and the preservative liquid are sealed while the container main body is stored in a state where it is overlapped with the other container main body. It has the structure as described in the aspect of this invention regarding the contact lens packaging container in any one of-7th, It is characterized by the above-mentioned.

  According to the container body having the structure according to this aspect, for example, in the production of a contact lens packaging container, even when the container body is laminated, the effect of reducing the lamination thickness by accommodating in the recess on the bottom outer surface of the depression Etc. can be enjoyed.

  A first aspect of the present invention relating to a method for stacking contact lens packaging containers is a method for stacking contact lens packaging containers in which a plurality of contact lens packaging containers are stacked. While the contact lens packaging container according to any one of the above embodiments is used, among the plurality of contact lens packaging containers, the bottom outer surface of the hollow portion of the container body of one of the contact lens packaging containers is used as another contact lens. The contact lens packaging container and the other contact lens packaging container are stacked in a state of being accommodated in the recess of the container body of the packaging container.

  According to the method for stacking contact lens packaging containers structured according to this aspect, the height of the stacked contact lens packaging containers in the stacking direction is reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. be able to. Therefore, in secondary packaging containers where a large number of contact lens packaging containers are stacked and stored, the overall height can be greatly reduced, and the size can be reduced, thereby reducing distribution costs and storage space. Can be planned.

  A second aspect of the present invention relating to a method for stacking contact lens packaging containers is the contact lens packaging container stacking method described in the first aspect, wherein the one contact lens packaging container and the other contact lens packaging container are combined. The bottom outer surfaces of the hollow portions of the container main bodies are opposed to each other, and the container main bodies are overlapped with each other rotated by 180 ° to overlap the bottom outer surface of the hollow portion of the one contact lens packaging container. The other contact lens packaging container is accommodated in the recess of the extension portion, while the bottom outer surface of the recess portion of the other contact lens packaging container is placed on the extension portion of the one contact lens packaging container. It is to be housed in a recess.

  According to the method of stacking contact lens packaging containers structured according to this aspect, the bottom surfaces of a pair of contact lens packaging containers can be combined to achieve downsizing, breakage of a cover sheet on which a design or the like is applied, etc. Can be prevented.

  A third aspect of the present invention relating to a method for stacking contact lens packaging containers is the contact lens packaging container stacking method described in the first aspect, wherein the one contact lens packaging container and the other contact lens packaging container are combined. The depressions of the one contact lens packaging container are arranged so that the depressions of the container bodies face each other in a state protruding in the same direction, and the container bodies are overlapped with each other rotated by 180 °. The outer surface of the bottom of the part is accommodated in the recess of the extension part of the other contact lens packaging container.

  According to the method for stacking contact lens packaging containers structured according to this aspect, there is no need to invert the contact lens packaging container, so that the manufacturing process can be simplified and miniaturized in the stacking direction. Can do.

  According to a fourth aspect of the present invention relating to a method for stacking contact lens packaging containers, the contact lens according to the seventh aspect is used as the contact lens packaging container in the method for stacking contact lens packaging containers described in the first aspect. While the packaging container is used, in addition to the one contact lens packaging container and the other contact lens packaging container, the other contact lens packaging containers are further protruded in the same direction in the respective recessed portions of the container body. The container main bodies are alternately rotated by 180 ° and overlapped with each other so that the bottom outer surface of the recess of the one contact lens packaging container is the extension part of the other contact lens packaging container. And the other contact lens packaging container. The depressions viewed portion of said first contact lens package that protrudes from the extending portion, in which so as to accommodate the recessed portion of the recess portion of the still another contact lens package.

  According to the contact lens packaging container structured according to this aspect, a plurality of contact lens packaging containers are opposed to each other with the recesses of the container body projecting in the same direction, and the containers are alternately rotated by 180 °. When stacked in a state, it can be advantageously made compact.

  According to the contact lens packaging container of the present invention, when a plurality of the contact lens packaging containers are stacked on top of each other and accommodated in a secondary packaging container such as a carton for distribution and storage, the depression of one container body Can be accommodated in the recess of the other container body. Thereby, the height of the stacked contact lens packaging containers in the overlapping direction can be reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. Therefore, the secondary packaging container in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and the distribution cost and storage space can be reduced.

The perspective view which shows the contact lens packaging container as 1st embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. The left-right side view of the container main body of the contact lens packaging container shown in FIG. IV-IV sectional drawing in FIG. The front rear view of the container main body of the contact lens packaging container shown in FIG. The side view at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. Sectional drawing corresponding to FIG. 4 at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. The figure which shows the connection body with which several of the contact lens packaging containers shown in FIG. 1 were connected. The perspective view which shows the secondary packaging container in which the some of the coupling body shown in FIG. 8 is accommodated. XX sectional drawing in FIG. Sectional drawing corresponding to FIG. 10 which shows the overlapping method of the contact lens packaging container of a conventional structure. The perspective view which shows the contact lens packaging container as 2nd embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. The left-right side view of the container main body of the contact lens packaging container shown in FIG. XV-XV sectional drawing in FIG. The front rear view of the container main body of the contact lens packaging container shown in FIG. Sectional drawing corresponding to FIG. 15 at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. Sectional drawing equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 2nd embodiment of this invention (4 steps | paragraphs stacking). Sectional drawing (eight steps stacked) equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 2nd embodiment of this invention. Sectional drawing (4 steps | paragraphs) equivalent to FIG. 10 which shows the modification of the overlapping method of the contact lens packaging container of 2nd embodiment of this invention. The perspective view which shows the contact lens packaging container as 3rd embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. XXIII-XXIII sectional drawing in FIG. FIG. 24 is a cross-sectional view corresponding to FIG. 23 when the contact lens packaging container shown in FIG. Sectional drawing equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 3rd embodiment of this invention (3 steps | paragraphs). Sectional drawing (4 steps | paragraphs) equivalent to FIG. 8 which shows the overlapping method of the contact lens packaging container of 3rd embodiment of this invention.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the contact lens packaging container 10 as 1st embodiment of this invention is shown by FIGS. The contact lens packaging container 10 includes a container main body 12 and a cover sheet 14. The contact lens 16 as an ophthalmic lens and a storage solution 18 are accommodated in the container main body 12, and the cover sheet 14 is stored in the container main body 12. The contact lens 16 is hermetically accommodated by being releasably fixed to the contact lens 16, and the cover sheet 14 can be peeled off from the container body 12 and the contact lens 16 can be taken out as necessary.

  More specifically, the container body 12 is configured to include a recessed portion 20 that accommodates the contact lens 16 and the preservation solution 18 and a flange-shaped portion 22 that spreads in a bowl shape from the opening peripheral edge of the recessed portion 20 over the entire circumference. It is integrally formed by injection molding or the like with a synthetic resin such as polypropylene or polyethylene. The hollow portion 20 has a substantially hemispherical shell shape that is flat in the thickness direction, and the inner surface 26 of the hollow portion 20 is a spherical concave surface having a substantially constant radius of curvature: rc (see FIG. 4). On the other hand, the flange-shaped portion 22 that spreads in a bowl shape from the opening peripheral edge of the recessed portion 20 is substantially flat extending in one side direction (right direction in FIGS. 1 and 2) that is one side of the recessed portion 20. It has the extension part 27, is exhibiting the thin substantially rectangular flat plate shape as a whole, and is integrally formed with the hollow part 20. As shown in FIG.

  Further, as shown in FIGS. 1, 2, and 4, the recess 20 contains a contact lens 16 and a storage solution 18, and a sufficient amount of storage solution for immersing the contact lens 16. 18 is filled. In addition, although the kind, material, etc. of the contact lens 16 and the preservation | save liquid 18 to be accommodated are not limited, in this embodiment, the contact lens 16 is hydrophilic software made of, for example, HEMA (hydroxyethyl methacrylate). In addition to being a contact lens, the preservation solution 18 can prevent the contact lens 16 from drying and can maintain the contact lens 16 in a ready-to-use state, and is a sterile aqueous solution, isotonic saline, or the like. The

  On the other hand, the cover sheet 14 is formed of a laminate sheet made of a composite material of an aluminum foil and a synthetic resin, and has a planar shape corresponding to the outer shape of the container body 12, for example, a rectangular shape as shown in FIG. have. Further, the cover sheet 14 is fixed to the container body 12 by heat sealing or the like. For example, as shown in FIG. A substantially annular fixing surface 28 is formed so as to continuously extend with a substantially constant width over the entire circumference in the direction. The cover sheet 14 is superposed on the fixing surface 28 and fixed by an arbitrary method such as heat sealing, ultrasonic sealing, adhesive, etc., so that the cover sheet 14 is releasably fused to the container body 12. The recess 20 is covered with a cover sheet 14 in a fluid-tight manner. In addition, when the cover sheet 14 is fixed to the container main body 12, the contact lens 16 and the storage solution 18 are stored in advance in the recess 20 of the container main body 12, and the cover sheet 14 is fixed to the container main body 12. The contact lens packaging container 10 of this embodiment is realized. It should be noted that an appropriate display or design can be applied to the surface of the cover sheet 14 by printing or sticking, as necessary, before or after fixing to the container body 12.

  A side wall portion 30 extending downward is provided at an end portion of the extending portion 27 of the flange-shaped portion 22 located on the opposite side to the hollow portion 20. In addition, a recess 32 is provided in a substantially middle portion of the extending portion 27 of the flange-shaped portion 22. In addition, the extension length from the flange-shaped part 22 of the extension part 27 is appropriately set in consideration of a pedestal function and gripping ability when turning the cover sheet 14.

  The contact lens packaging container 10 according to the present invention can be superposed on a pair. As shown in FIGS. 6 and 7, the two contact lens packaging containers 10 are assembled with their lower surfaces facing each other. At this time, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 is accommodated in the recess 32 of the other contact lens packaging container 10, and vice versa. That is, the two contact lens packaging containers 10 are rotated by 180 ° with each other with the bottom surfaces of the hollow portions 20 facing each other, and are superimposed. In addition, the flange-like parts 22 of the two contact lens packaging containers 10 are arranged to face each other with a gap in a parallel state.

  Here, the shape of the recess 32 may be any shape as long as the bottom outer surface 34 of the recess 20 can be accommodated, but the dimension in the overlapping direction of the pair of contact lens packaging containers 10 that are overlapped with each other as described above. In order to reduce the size, the opening is formed in a substantially circular shape in plan view, and the central axis of the recess 32 is coaxial with the central axis of the recess 20 of the other container body 12 accommodated in the recess 32. It is desirable to be provided. Thereby, when one container main body 12 is overlapped with another container main body 12, the overlapping height can be reduced efficiently while positioning the recesses 20 and the recesses 32 advantageously. . Further, the shape of the recess 32 is preferably formed so that the hole diameter gradually increases from the upper surface 36 to the lower surface 38 of the extending portion 27 as shown in FIGS. . The recess 32 may have a concave shape that opens to the lower surface of the extension portion 27 without penetrating the extension portion 27 in the plate thickness direction.

  Furthermore, in the contact lens packaging container 10 of the present embodiment, the recess 20 has a concave shape whose depth is smaller than that of the hemisphere, and the radius of curvature: rc in the longitudinal section of the inner surface 26 of the recess 20 is: It is desirable that the radius of curvature of the front surface of the contact lens 16 is set so as to satisfy the formula: 1.0 ≦ rc / R ≦ 1.2. That is, when the curvature radius rc in the longitudinal section of the inner surface 26 of the recess 20 is smaller than the curvature radius R of the contact lens 16 accommodated in the recess 20, the contact lens 16 comes into contact with the inner surface 26 of the recess 20. The contact lens 16 may be stressed to cause deformation wrinkles during distribution and storage. If the radius of curvature rc of the inner surface 26 of the recess 20 is larger than 1.2 times the radius of curvature R of the front surface of the contact lens 16, the recess 20 becomes larger than necessary, leading to an increase in size. . Therefore, by satisfying 1.0 ≦ rc / R ≦ 1.2, the contact lens 16 can be stored without exerting stress, and the dent 20 can be prevented from being enlarged more than necessary. . It should be noted that the maximum protruding height of the recess 20 from the flange-like portion 22 is preferably 4 to 8 mm, and more preferably 4 to 5 mm. Further, as shown in FIG. 4, the maximum projecting height of the recessed portion 20 from the flange-shaped portion 22 is formed to be substantially equal to the extending length from the extending portion 27 of the flange-shaped portion 22 of the side wall portion 30. .

  The contact lens packaging container 10 of this embodiment having such a structure can be accommodated in a space-saving manner in the secondary packaging container 44 shown in FIG. For example, as shown in FIG. 8A, a plurality of contact lens packaging containers 10 (five in this embodiment) are arranged in a line and connected to each other by a common continuous cover sheet 40. In order to make it easy to separate the individual contact lens packaging containers 10, the cover sheet 40 is provided with a given breaking line 42 at the part of the separation line between the individual contact lens packaging containers 10. Next, as shown in FIG. 8B, the multiple contact lens packaging containers 10 connected to each other by the cover sheet 40 are rotated 180 ° with each other with the bottom outer surfaces 34 of the recesses 20 facing each other. And overlap. Furthermore, three sets of units, each of which is a combination of two contact bodies of five contact lens packaging containers 10, can be stored in one secondary packaging container 44.

  The secondary packaging container 44 shown in FIG. 9 is made of cardboard or the like, and is formed in a substantially rectangular box shape. The upper wall 46 of the secondary packaging container 44 is configured to be able to open the secondary packaging container 44 so as to rotate upward about the rear hinge line 52. Side flaps 54 that can be pushed into The upper wall 46 has a front flap 56 that hangs down, and a latch tab 58 is formed at the center of the lower edge of the front flap 56. The latch tab 58 is inserted into a latch slit 60 formed in the center of the front wall 48 so that the secondary packaging container 44 is held in a closed state.

  Next, the effect at the time of using the contact lens packaging container 10 of this embodiment is demonstrated using FIG.10 and FIG.11. 10 (b) and 11 (b) show the individual contact lens packaging containers 10 shown in FIGS. 10 (a) and 11 (a) separated in the height direction. It is an auxiliary drawing for facilitating understanding. 10A is a cross-sectional view of a state in which three sets of units in which two of the five contact lens packaging containers 10 shown in FIG. 8B are overlapped are accommodated in the secondary packaging container 44. FIG. The figure is shown. As is clear from FIG. 10A, in each unit, in the overlapping direction of the pair of contact lens packaging containers 10, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 is the other contact lens packaging. It fits into a recess 32 provided in the extension 27 of the container 10 and is in contact with the cover sheet 14 of the other contact lens container 10. Therefore, in the vertical direction of FIG. 10A, which is the overlapping direction of the pair of contact lens packaging containers 10, the height dimension H1 of each unit is one contact lens packaging container 10 in the vertical direction of FIG. The height dimension h (the sum of the height dimension of the container body 12 and the thickness dimension of the cover sheet 14) is added to the thickness dimension wa of the cover sheet 14 of the other contact lens packaging container 10 (H1 = h + wa). In short, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 reaches the cover sheet 14 through the recess 32 provided in the extension 27 of the other contact lens packaging container 10. Therefore, in each unit, the height dimension can be reduced only by the plate thickness dimension w of the extending portion 27 of the other contact lens packaging container 10.

  On the other hand, in the case of the contact lens packaging container 62 of the conventional example shown in FIG. 11A, since the recess is not provided in the extending portion, the figure is a direction in which the pair of contact lens packaging containers 62 are overlapped. 11A, the height dimension H2 of each unit is equal to the height dimension h of one contact lens packaging container 62 in the vertical direction of FIG. 11A (the height dimension of the container body 12 and the cover sheet). 14) and the thickness dimension w of the extension part of the other contact lens packaging container 62 and the thickness dimension wa of the cover sheet 14 (H2 = h + w + wa).

  Therefore, in a state where three sets of units are accommodated in the secondary packaging container 44, the use of the contact lens packaging container 10 of the present embodiment extends the length compared to the case where the contact lens packaging container 62 of the conventional example is used. The height dimension can be reduced by 3 times (3w) the plate thickness dimension w of the protruding portion 27.

  As described above, according to the present embodiment, a plurality of contact lens packaging containers 10 are overlapped with each other so that the bottom outer surface 34 of the recessed portion 20 of one container body 12 is recessed in the other container body 12. 32. Thereby, the height of the stacked contact lens packaging containers 10 in the overlapping direction can be reduced by the amount that the bottom outer surface 34 of the recessed portion 20 is accommodated in the recess 32. Therefore, the secondary packaging container 44 in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and distribution costs and storage space can be reduced.

  Further, by projecting the pair of contact lens packaging containers 10 so that the bottom outer surfaces 34 of the recessed portions 20 of the container main bodies 12 face each other and the container main bodies 12 are rotated 180 ° from each other, It will be included. As a result, it is possible to carry it stably for traveling or the like, and it is possible to prevent damage to the cover sheet 14 on which the design or the like is applied.

  Hereinafter, some contact lens packaging containers as another embodiment of the present invention will be further illustrated. In the embodiments described below, members and parts having the same structure as the first embodiment are illustrated in the drawings. The same reference numerals as those in the first embodiment are used to omit the detailed description thereof.

  That is, FIGS. 12 to 17 show a contact lens packaging container 64 as a second embodiment of the present invention. The contact lens packaging container 64 includes (i) a point in which a recessed portion 66 described later is provided in the covering sheet 14 of the recessed portion 20, and (ii) a portion of the covering sheet 14 that is placed on the extending portion 27. An embodiment different from the first embodiment in terms of shape is shown.

  More specifically, a recessed portion 66 that is recessed toward the recessed portion 20 is formed in a corresponding portion of the cover sheet 14 that covers the opening of the recessed portion 20 in the contact lens packaging container 64 of the present embodiment. The recess 66 provided in the cover sheet 14 has a substantially hemispherical shell shape that is flat in the thickness direction, similar to the recess 20. The shape of the recessed portion 66 may be any shape as long as the bottom outer surface 34 of the recessed portion 20 can be accommodated, but in order to be accommodated compactly, a spherical recessed surface having a substantially constant radius of curvature: rs In addition, it is desirable that rs be larger than the radius of curvature rc in the longitudinal section of the inner surface 26 of the recess 20 (see FIG. 15). As a result, the contact lens 16 can be stored compactly between the inner surface 26 of the recess 20 and the recess 66 of the cover sheet 14. Further, it is desirable that the central axis of the recessed portion 66 is provided so as to be coaxial with the central axis of the recessed portion 20 of the other container body 12 accommodated in the recessed portion 66. Thereby, when one container main body 12 is overlapped with another container main body 12, the overlapping height can be reduced efficiently while positioning the recesses 20 and the recesses 66 advantageously. .

  Further, the shape of the cover sheet 14 at the portion covering the extended portion 27 provided with the recess 32 in the contact lens packaging container 64 of the present embodiment is exposed to the outside at the portion corresponding to the recess 32. A through hole 68 is provided to do this. The cover sheet 14 may be formed in a short length that does not cover the recess 32. Moreover, in this embodiment, the diameter dimension of the recess 32 which penetrates the extension part 27 is made larger than the recess 32 in the contact lens packaging container 10 of 1st embodiment, and the opening peripheral part of the hollow part 20 is shown. The diameter is approximately the same (see FIG. 13B).

  Furthermore, a notch portion 70 that opens to the lower end portion is formed in the side wall portion 30 that extends downward from the end portion of the extending portion 27 of the flange-shaped portion 22, which is located on the opposite side to the hollow portion 20. A pair of engaging portions 71, 71 are formed at both end portions of the notch portion 70. On the other hand, a pair of notch-like engagements with which the engaging portions 71 and 71 are locked are provided at the end edge portion (on the left side in FIGS. 13A and 13B) of the flange-like portion 22 on the hollow portion 20 side. Stop portions 72 are provided.

  Next, a method for overlaying the contact lens packaging container 64 will be described with reference to FIG. As shown in FIG. 17, the pair of contact lens packaging containers 64 are overlapped with each other so that the bottom outer surfaces 34 of the recesses 20 are opposed to each other and rotated 180 ° relative to each other. At this time, in a state where the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 64 protrudes through the recess 32 of the other contact lens packaging container 64 and the through hole 68 penetrating through the cover sheet 14. Stored and vice versa. Here, since the diameter dimension of the recess 32 of the contact lens packaging container 64 is substantially the same as or larger than the diameter dimension of the opening peripheral edge portion of the recess 20, the pair of contact lens packaging containers 64 is The other recesses 20 are fitted into the other recesses 32 so that the flanges 22 are overlapped in parallel with each other. At that time, the engaging portions 71 and 71 of the side wall portion 30 of one contact lens packaging container 64 and the engaging portions 72 and 72 of the other contact lens packaging container 64 are brought into contact with each other, and the engaging portions 71 and 71 are brought into contact with each other. After engaging elastically in a direction away from each other and overcoming the engaging portions 72, 72, the engaging portions 71, 71 and the engaging portions 72, 72 are engaged by elastically returning to the original shape. Thus, the contact lens packaging containers 64 can be locked in a superposed state. Accordingly, a locking mechanism between the contact lens packaging containers 64 can be provided with a simple structure, and the portability of the contact lens packaging container 64 can be improved. In addition, the engagement structure using the above-mentioned notch part 70 and the latching | locking part 72 is an example, and an engagement structure is not limited to this.

  Moreover, many contact lens packaging containers 64 can be stacked by repeating the above overlapping operation. For example, FIG. 18 shows a configuration in which four contact lens packaging containers 64 are alternately stacked in this manner, and FIG. 19 shows a configuration in which eight contact lens packaging containers 64 are stacked in a staggered manner. 18A shows a state before the two units 74 and 74 of the pair of contact lens packaging containers 64 overlapped as shown in FIG. 17 are overlapped, and FIG. A unit 76 is shown in a state where the two units 74, 74 are overlapped. FIG. 19A shows a state before the two units 76 and 76 shown in FIG. 18B are overlapped, and FIG. 19B shows a unit 78 where the two units 76 are overlapped. It is shown.

  As apparent from FIGS. 18 and 19, in the contact lens packaging container 64 of the present embodiment, the concave portion 66 is provided in the portion located on the concave portion 20 of the cover sheet 14, and therefore, FIG. 18. When the two units 74, 74 shown in (a) are overlapped with each other, the recess 32 of one unit 74 and the bottom outer surface 34 of the recessed portion 20 protruding from the through hole 68 are the cover sheet 14 of the other unit 74. And is accommodated in the recess 66 (see FIG. 18B). Further, when the two units 76, 76 shown in FIG. 19A are overlapped with each other, the bottom outer surface 34 of the recessed portion 20 protruding from the recess 32 and the through hole 68 of one unit 76 is the other unit 74. The cover sheet 14 is fitted and accommodated in the recess 66 (see FIG. 19B). Thus, according to the contact lens packaging container 64 of the present embodiment, the height dimension in the overlapping direction of each contact lens packaging container 64 using the recess 66 provided in the cover sheet 14 (FIG. 18, The vertical dimension in FIG. 19 can be further absorbed and reduced.

  By such a stacking method, the height required per contact lens packaging container 64 is estimated. For example, if the height H3 (see FIG. 17) for one contact lens packaging container 64 is 5.5 mm, the height H4 when four contact lens packaging containers 64 are overlapped as shown in FIG. In addition, as shown in FIG. 19, the height H5 when the eight contact lens packaging containers 64 are overlapped is 16.3 mm. Compared to the case of the contact lens packaging container 10 of the above-described embodiment, the height when the four are overlapped is slightly smaller than the height of 11.4 mm in the case of the first embodiment. It can be seen that the height is much smaller than the height of 22.8 mm in the case of the embodiment and can be stored compactly.

  Furthermore, another overlapping method of the contact lens packaging container 64 will be described with reference to FIG. FIG. 20A is an auxiliary drawing for easy understanding. As shown in FIG. 20 (a), first, four contact lens packaging containers 64 are superposed one by two in a state where each recess 20 protrudes in the same direction, and then the two sets of contact lens packaging are superimposed. In a state where the bottom outer surfaces 34 of the hollow portions 20 of the container 64 are arranged facing each other, they are rotated by 180 ° with respect to each other, and then overlapped. The assembly of the four contact lens packaging containers 64 superposed in this way is referred to as a unit 80. In the unit 80, the engaging part 71 and the engaging part 72 can be locked only in the two contact lens packaging containers 64 arranged in the center.

  Also, by repeating these steps, a large number of contact lens packaging containers 64 can be stacked. When the height required per contact lens packaging container 64 is estimated by such a stacking method, for example, the height H3 (see FIG. 17) in the case of one contact lens packaging container 64 is 5.5 mm. Then, as shown in FIG. 20, the height H6 in the case of the unit 80 in which the four contact lens packaging containers 64 are overlapped is 9.0 mm. It can be seen that this value can be made significantly smaller than the height of 11.0 mm when the four stacking methods of the embodiment are stacked.

  As described above, in the contact lens packaging container 64 of the present embodiment, the recessed portion 20 of one contact lens packaging container 64 enters the recessed portion 20 of the other contact lens packaging container 64 to increase the height in the overlapping direction. The size can be further reduced. Therefore, it is possible to reduce the size of the secondary packaging container 44 and to accommodate more contact lens packaging containers 64 in the secondary packaging container 44.

  In the stacking method using the contact lens packaging container 64 described here, the plurality of contact lens packaging containers 64 are opposed to each other in a state in which the recessed portions 20 of the container body 12 protrude in the opposite direction, and the container body 12 Or a pair of contact lens packaging containers 64, 64 in which the above-described contact lens packaging containers 64 are superimposed in a state in which the respective recessed portions 20 protrude in the same direction. In addition, the case where the dent portions 20 are opposed to each other and are superposed in a state where the dent portions 20 are rotated by 180 ° is illustrated, but various other stacking methods are conceivable. For example, a plurality of contact lens packaging containers 64 may be superposed by randomly mixing the exemplified superposition methods.

  21 to 23 show a contact lens packaging container 82 as a third embodiment of the present invention. The left and right side views and the front and rear views are the same as those in FIGS. Such a contact lens packaging container 82 shows an embodiment different from the second embodiment regarding the shape of the recess 32. Specifically, as shown in FIGS. 21 to 23, the shape of the recess 32 is formed so that the hole diameter is larger on the upper surface 36 side than on the lower surface 38 side.

  Next, a method for overlaying the contact lens packaging container 82 will be described with reference to FIG. As shown in FIG. 24, one contact lens packaging container 82a is overlapped on the other contact lens packaging container 82b rotated by 180 ° in a state where each recess 20 protrudes in the same direction. The bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a is accommodated in a form protruding from the recess 32 of the other contact lens packaging container 82b. The contact lens packaging container 82b superposed in this way is referred to as a unit 84. Here, the diameter dimension on the upper surface 36 side of the recess 32 is formed to be slightly larger than the diameter dimension of the opening peripheral edge portion of the recess 20 and the diameter dimension of the base end portion of the bottom outer surface 34. Accordingly, as shown in FIG. 24, the contact lens packaging container 82a is overlaid from above the contact lens packaging container 84b, and the bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a penetrates the through hole 68 and the recess 32. And the flange-like portions 2 are overlapped with each other. As shown in FIG. 25, in addition to the contact lens packaging containers 82a and 82b, other contact lens packaging containers 82c are opposed to each other in a state where the recessed portions 20 of the container main bodies 12 protrude in the same direction. The container main bodies 12 are superposed with being alternately rotated by 180 °, and the bottom outer surface 34 of the recessed portion 20 of the contact lens packaging container 82a passes through the recess 32 of the extending portion 27 of the contact lens packaging container 82b. The contact lens packaging container 82c is accommodated in a projecting state, and the bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a projecting from the recess 32 of the extension part 27 of the flange-shaped part 22 of the contact lens packaging container 82b. Are accommodated in the recessed portion 66 of the cover sheet 14 and the flange-like portions 22 are overlapped with each other. The three contact lens packaging containers 82 superposed in this way are referred to as a unit 86. Also, by repeating these steps, a large number of contact lens packaging containers 82 can be stacked.

  Next, by using FIG. 26, it is estimated how much the height in the overlapping direction can be reduced by using the contact lens packaging container 82 of the present embodiment. FIG. 26 (a) shows the individual contact lens packaging containers 82 shown in FIG. 26 (b) separated in the height direction. For example, if the height dimension H7 in the case of one contact lens packaging container 82 is 5.5 mm, the height dimension H8 is 8 in the unit 88 when four contact lens packaging containers 82 are overlapped as shown in FIG. .5mm. This value is compared with the height dimension value 11.0 mm when the four are overlapped in the first embodiment and the height dimension value 9.0 mm when the four are overlapped in the second embodiment. It can be seen that it can be small. Further, since there is no need to reverse the contact lens packaging container 82, it is possible to reduce the size in the stacking direction while simplifying the manufacturing process.

  In addition, when the protrusion height from the extension part 27 of the flange-shaped part 22 of the side wall part 30 protrudes beyond the protrusion height of the recess part 20, etc., the recess part is formed in the cover sheet 14 on the recess part 20. Without providing 66, the thickness may be reduced simply by penetrating the recess 20 through the through hole 68 and projecting.

  In the stacking method using the contact lens packaging container 82 described here, the plurality of contact lens packaging containers 82 are opposed to each other in a state in which the recessed portions 20 of the container body 12 protrude in the same direction, and the container body 12 Although the case where they are stacked in a state where they are alternately rotated by 180 ° has been illustrated, various other stacking methods are conceivable. For example, the contact lens packaging containers 82 may be overlapped in a state where the respective recessed portions 20 of the container main bodies 12 face each other in a protruding state in the same direction. That is, the specific stacking method using the contact lens packaging container 82 described in the present embodiment is not limited to the one exemplified above.

  As mentioned above, although embodiment of this invention was explained in full detail, these are illustration to the last, Comprising: This invention is not limited at all by the specific description in these embodiment.

  The contact lens packaging container 10 shown in FIG. 1 is not provided with a pair of engaging portions and locking portions, but can be provided as necessary. For example, a pair of engaging portions 71 and a locking portion 72 as shown in FIGS. 12 and 21 may be provided, or a notch-shaped notch is provided on the protruding end surface of the side wall portion 30 to form an engaging portion. The flange-shaped portion 22 may be provided with a protruding locking portion that locks to the engaging portion.

  In addition, the container body 12 can be appropriately formed with reinforcing outer peripheral vertical walls and ribs, peeling assisting and punching holes, anti-slip irregularities for gripping, etc. The target shape is not limited to the shape of the above embodiment.

  In addition, the shape, size, and the like of the flange-shaped portion 22 can be arbitrarily set in consideration of usability, packing property, and the like, and are not limited to the shape of the illustrated flange-shaped portion 22.

  In addition, the contact lens packaging container according to the present invention accommodates various ophthalmic lenses such as hard contact lenses and intraocular lenses in addition to soft contact lenses including various disposable types such as for myopia, hyperopia, and presbyopia. Of course it is possible. In addition, the contact lens packaging container according to the present invention can be used as an ophthalmic lens container for provision to end users such as consumers, for example, for ophthalmic use for provision from a manufacturer to a medical institution, etc. It can also be used as a lens container.

  In addition, when the container body 12 according to the present invention used in the exemplified contact lens packaging containers 10, 64, 84 is stored in a production line or the like before the contact lens packaging containers 10, 64, 84 are manufactured. In addition, the bottom outer surface 34 of the recess 20 of one container body 12 is fitted into the recess 32 of the other container body 12 and overlapped, thereby contributing to a reduction in storage space during storage of the container body 12 as well. It is possible.

  In addition, although not listed one by one, the present invention can be implemented in a mode to which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the invention.

10, 64, 82: Contact lens packaging container, 12: Container body, 14: Cover sheet, 16: Contact lens, 18: Preservation liquid, 20: Recessed part, 22: Flange-like part, 26: Inner surface, 27: Extension Part: 28: fixing surface, 30: side wall part, 32: recess, 34: bottom outer surface, 44: secondary packaging container, 66: recessed part, 68: through hole, 70: notch part, 71: engaging part, 72: Locking part

The present invention is a contact lens, especially disposable soft contact lenses and HEMA (hydroxyethyl methacrylate) and silicone hydrogel of a material hydrophilic soft contact lenses contact lenses packaging container which is accommodated in a sealed state with preserving liquid, In addition, the present invention relates to a method for stacking contact lens packaging containers performed when the contact lens packaging container is accommodated in a secondary packaging container such as a carton.

  In recent years, an increasing number of contact lenses are used in a manner that is disposable (one day) or periodically replaced every week, and the number of contact lenses provided to users has increased dramatically. doing. The contact lens provided to the user is stored in a so-called primary packaging container that is sealed in a sterilized state together with a preservation solution for each sheet, and then a plurality of primary packaging containers are stacked to form a so-called secondary packaging such as a carton. It is housed in containers and distributed and shipped to retail stores and users. For example, the one shown in FIGS. 3 to 9 of JP-A-8-5971 (Patent Document 1) is a primary packaging container, and the one shown in FIGS. 1 and 2 of Patent Document 1 is a secondary packaging. It is a container.

  By the way, the storage location of secondary packaging containers at the manufacturing stage and retail stores is limited. For the purpose of reducing distribution costs and storage costs, the thickness in the stacking direction when the primary packaging containers are stacked ( Various attempts have been made to reduce the height of the secondary packaging container by reducing the height. For example, in Patent Document 1, a cover sheet is provided for a container main body that includes a hollow portion that contains a contact lens and a preservative solution, and a substantially flat flange-shaped portion that extends from the peripheral edge of the hollow portion toward the outer periphery. A contact lens packaging container is disclosed as a primary packaging container having a structure in which the openings of the depressions are covered fluid-tightly by overlapping them. In this contact lens packaging container, the flange-like portion is extended greatly to one side of the hollow portion to form an extending portion, thereby making it easy to grip the container and the like. The thickness in the stacking direction when stacked is reduced. That is, as shown in FIG. 2 of Patent Document 1, one packaging container and the other packaging container are overlapped with the bottom outer surfaces of the recesses facing each other, and the packaging containers rotated 180 ° relative to each other. In this case, the bottom outer surfaces of the recessed portions of the one and other container bodies can be placed on the extending portions of the one and other container bodies. Therefore, compared to the case where the dents of one packaging container and the other packaging container protrude in the same direction, the thickness of the contact lens packaging containers stacked on each other is substantially halved. The secondary packaging container that accommodates them can be made compact.

  However, in the contact lens packaging container described in Patent Document 1, even if the contact lens packaging containers are stacked with the back surfaces (projection sides of the depressions) facing each other and the depressions disposed in the direction of 180 ° are stacked, It is difficult to make the thickness in the alignment direction smaller than the total thickness of the contact lens packaging container plus the thickness of the extension part of the other contact lens packaging container and the cover sheet. Yes, it was not possible to meet the demand for further downsizing.

JP-A-8-5971

The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the thickness in the overlapping direction when the contact lens packaging containers are stacked is different from the thickness of the entire contact lens packaging container. can be further reduced than the flange portion and the covering thickness of the value obtained by adding the sheets of the contact lens package is to provide a contact lens packaging container having a novel structure.

  Furthermore, another object of the present invention is to provide a novel method for stacking contact lens packaging containers that can be advantageously performed using such a contact lens packaging container.

  Hereinafter, embodiments of the present invention made to solve the above-described problems will be described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

  That is, the first aspect of the present invention relating to a contact lens packaging container is a container having a recess that contains a contact lens and a preservative solution, and a substantially flat flange-like portion that extends from the peripheral edge of the opening to the outer periphery. A main body and a cover sheet that overlaps the container main body and covers the opening of the recess, and the cover sheet is fixed around the opening of the recess so as to be peeled around the entire periphery. In the contact lens packaging container, the container body is configured to be stored in a state where the contact lens and the preservative liquid are sealed in the recess, and the container body is overlapped with another container body. The flange-shaped portion has an extending portion that extends to one side of the recessed portion, and a recess is formed in the extending portion, and the container body is the other container body. And superimposed When it is a tube, in which the outer bottom surface of the depressions viewed portion of the container body is adapted to be accommodated in the recess of the other container body.

  According to the contact lens packaging container structured according to this aspect, when a plurality of contact lens packaging containers are stacked on top of each other and accommodated in a secondary packaging container such as a carton, one container is distributed. The bottom part outer surface of the hollow part of a main body can be accommodated in the recess of the other container main body. Thereby, the height of the stacked contact lens packaging containers in the overlapping direction can be reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. Therefore, the secondary packaging container in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and the distribution cost and storage space can be reduced.

  Here, the recess provided in the extension part is configured by a through-hole penetrating the extension part or a recess part formed in the extension part on the surface on the side where the hollow part protrudes from the flange-like part. can do. Note that the opening area and depth of the recess are appropriately set to a size that can accommodate the outer surface of the bottom in consideration of the radius of curvature of the recess, the thickness of the extension of the flange, and the like.

  Moreover, in the overlapping state of the contact lens packaging container of this aspect, (1) While making one container main body and the other container main body oppose the bottom part outer surfaces of a hollow part, they rotated 180 degrees mutually. A mode in which the bottom outer surfaces of the depressions of the one and the other container bodies are accommodated in the recesses of the one and the other container bodies, and (2) the depressions of the one container body and the other container body. Are opposed to each other while projecting in the same direction, and the containers are overlapped with each other rotated by 180 ° so that the bottom outer surface of the recess of one container body is accommodated in the recess of the other container body. Is included.

  According to a second aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the first aspect, a pair of engaging portions and a locking portion are provided at two locations apart from each other of the container body. When the container main body is overlapped with the other container main body, the engaging portion and the engaging portion provided in the container main body are provided in the other container main body. By being engaged with the engaging portion and the locking portion, respectively, the overlapping state is maintained.

  According to the contact lens packaging container structured according to this aspect, the contact lens packaging containers superimposed on each other can be stably held in an overlapped state, for example, use of contact lenses having different eyesight for both eyes It is possible for a person to carry a pair of contact lenses for left and right eyes in a superposed state and stably carry them on a trip or the like.

  According to a third aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the second aspect, the flange portion of the container body has a side wall portion extending to a side from which the hollow portion protrudes. And the engagement portion is formed on the side wall portion, and further, the flange portion of the container body has the container body connected to the other container body and the bottom of the recess. The engaging portion is provided at a position corresponding to the engaging portion provided on the side wall when the outer surfaces are opposed to each other and are overlapped with each other rotated by 180 °. is there.

  According to the contact lens packaging container structured according to this aspect, the container body of the contact lens packaging container and the container body of another contact lens packaging container are rotated by 180 ° with each other while the bottom outer surfaces of the recesses face each other. Then, the contact lens container can be locked in the overlapped state by engaging the engaging portion of the side wall portion with the protruding locking portion. Accordingly, it is possible to provide a lock mechanism between the contact lens containers with a simple structure, and to improve the portability of the contact lens container.

  According to a fourth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in any one of the first to third aspects, the maximum of the hollow portion from the flange-shaped portion of the container body. The protruding height is 4 to 8 mm.

  According to the contact lens packaging container structured according to this aspect, the protrusion height of the recess is kept small, and the bottom outer surface is accommodated in the recess so that the contact lens container is further superimposed. The height in the overlapping direction can be reduced.

  According to a fifth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in any one of the first to fourth aspects, the concave portion of the container body has a concave shape smaller than a hemisphere. The curvature radius rc in the longitudinal section of the inner surface of the recess is set so as to satisfy the formula: 1.0 ≦ rc / R ≦ 1.2 with respect to the curvature radius R of the front surface of the contact lens. It is what.

  According to the contact lens packaging container structured according to this aspect, the curvature radius rc in the longitudinal section of the inner surface of the recess is set to be 1 to 1.2 times the curvature radius of the front surface of the contact lens: R. Therefore, the entire front surface of the contact lens is accommodated along the inner surface of the recessed portion in a natural stretched state of the contact lens. As a result, the contact lens can be housed stably without being stressed. Moreover, the protrusion height from the flange-shaped part of a hollow part can be suppressed, and it can also avoid that a volume becomes larger than necessary.

  According to a sixth aspect of the present invention relating to a contact lens packaging container, in the contact lens packaging container described in the fifth aspect, the recess provided in the extending portion of the container body is substantially circular in a plan view. The opening is formed in a shape, and the central axis of the recess is provided so as to be coaxial with the central axis of the recess of the other container body housed in the recess.

  According to the contact lens packaging container structured according to this aspect, when one container body is overlapped with the other container body, the overlapping height is efficiently positioned while advantageously positioning the recesses and the recesses. Can be reduced.

  A seventh aspect of the present invention relating to a contact lens packaging container is the contact lens packaging container described in any one of the first to sixth aspects, wherein the recess of the container body penetrates the extending portion. The through hole is provided in such a size that the bottom outer surface of the recessed portion of the other container body to be overlapped can protrude from the extending portion through the through hole. On the other hand, the cover sheet has a recessed portion that is recessed toward the recessed portion at a portion that covers the opening of the recessed portion.

  According to the contact lens packaging container structured according to this aspect, a plurality of contact lens packaging containers are opposed to each other with the recesses of the container body projecting in the same direction, and the containers are alternately rotated by 180 °. When stacked in a state, it can be advantageously made compact. Specifically, on the bottom contact lens packaging container, the second contact lens packaging container is rotated 180 ° so that the bottom outer surface of the recess of the second contact lens packaging container is the bottom contact lens packaging container. By overlapping the contact lens packaging container so as to penetrate the through hole, the height in the overlapping direction can be reduced.

  Further, the third contact lens packaging container is rotated by 180 ° with respect to the second and overlapped. At that time, the bottom outer surface of the recessed portion of the third contact lens packaging container penetrates the through hole of the second contact lens packaging container and projects downward, but the projection margin is the bottom contact lens packaging. Since the sheet | seat of the hollow part of a container has the hollow part dented by the hollow part side, it can absorb by this hollow part. Thereby, even when a plurality of contact lens packaging containers are alternately stacked in the same direction, the height dimension in the overlapping direction can be advantageously suppressed.

  A first aspect of the present invention relating to a method for stacking contact lens packaging containers is a method for stacking contact lens packaging containers in which a plurality of contact lens packaging containers are stacked. While the contact lens packaging container according to any one of the above embodiments is used, among the plurality of contact lens packaging containers, the bottom outer surface of the hollow portion of the container body of one of the contact lens packaging containers is used as another contact lens. The contact lens packaging container and the other contact lens packaging container are stacked in a state of being accommodated in the recess of the container body of the packaging container.

  According to the method for stacking contact lens packaging containers structured according to this aspect, the height of the stacked contact lens packaging containers in the stacking direction is reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. be able to. Therefore, in secondary packaging containers where a large number of contact lens packaging containers are stacked and stored, the overall height can be greatly reduced, and the size can be reduced, thereby reducing distribution costs and storage space. Can be planned.

  A second aspect of the present invention relating to a method for stacking contact lens packaging containers is the contact lens packaging container stacking method described in the first aspect, wherein the one contact lens packaging container and the other contact lens packaging container are combined. The bottom outer surfaces of the hollow portions of the container main bodies are opposed to each other, and the container main bodies are overlapped with each other rotated by 180 ° to overlap the bottom outer surface of the hollow portion of the one contact lens packaging container. The other contact lens packaging container is accommodated in the recess of the extension portion, while the bottom outer surface of the recess portion of the other contact lens packaging container is placed on the extension portion of the one contact lens packaging container. It is to be housed in a recess.

  According to the method of stacking contact lens packaging containers structured according to this aspect, the bottom surfaces of a pair of contact lens packaging containers can be combined to achieve downsizing, breakage of a cover sheet on which a design or the like is applied, etc. Can be prevented.

  A third aspect of the present invention relating to a method for stacking contact lens packaging containers is the contact lens packaging container stacking method described in the first aspect, wherein the one contact lens packaging container and the other contact lens packaging container are combined. The depressions of the one contact lens packaging container are arranged so that the depressions of the container bodies face each other in a state protruding in the same direction, and the container bodies are overlapped with each other rotated by 180 °. The outer surface of the bottom of the part is accommodated in the recess of the extension part of the other contact lens packaging container.

  According to the method for stacking contact lens packaging containers structured according to this aspect, there is no need to invert the contact lens packaging container, so that the manufacturing process can be simplified and miniaturized in the stacking direction. Can do.

  According to a fourth aspect of the present invention relating to a method for stacking contact lens packaging containers, the contact lens according to the seventh aspect is used as the contact lens packaging container in the method for stacking contact lens packaging containers described in the first aspect. While the packaging container is used, in addition to the one contact lens packaging container and the other contact lens packaging container, the other contact lens packaging containers are further protruded in the same direction in the respective recessed portions of the container body. The container main bodies are alternately rotated by 180 ° and overlapped with each other so that the bottom outer surface of the recess of the one contact lens packaging container is the extension part of the other contact lens packaging container. And the other contact lens packaging container. The depressions viewed portion of said first contact lens package that protrudes from the extending portion, in which so as to accommodate the recessed portion of the recess portion of the still another contact lens package.

  According to the contact lens packaging container structured according to this aspect, a plurality of contact lens packaging containers are opposed to each other with the recesses of the container body projecting in the same direction, and the containers are alternately rotated by 180 °. When stacked in a state, it can be advantageously made compact.

  According to the contact lens packaging container of the present invention, when a plurality of the contact lens packaging containers are stacked on top of each other and accommodated in a secondary packaging container such as a carton for distribution and storage, the depression of one container body Can be accommodated in the recess of the other container body. Thereby, the height of the stacked contact lens packaging containers in the overlapping direction can be reduced by the amount that the bottom outer surface of the recess is accommodated in the recess. Therefore, the secondary packaging container in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and the distribution cost and storage space can be reduced.

The perspective view which shows the contact lens packaging container as 1st embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. The left-right side view of the container main body of the contact lens packaging container shown in FIG. IV-IV sectional drawing in FIG. The front rear view of the container main body of the contact lens packaging container shown in FIG. The side view at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. Sectional drawing corresponding to FIG. 4 at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. The figure which shows the connection body with which several of the contact lens packaging containers shown in FIG. 1 were connected. The perspective view which shows the secondary packaging container in which the some of the coupling body shown in FIG. 8 is accommodated. XX sectional drawing in FIG. Sectional drawing corresponding to FIG. 10 which shows the overlapping method of the contact lens packaging container of a conventional structure. The perspective view which shows the contact lens packaging container as 2nd embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. The left-right side view of the container main body of the contact lens packaging container shown in FIG. XV-XV sectional drawing in FIG. The front rear view of the container main body of the contact lens packaging container shown in FIG. Sectional drawing corresponding to FIG. 15 at the time of superimposing on the pair of container main bodies of the contact lens packaging container shown in FIG. Sectional drawing equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 2nd embodiment of this invention (4 steps | paragraphs stacking). Sectional drawing (eight steps stacked) equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 2nd embodiment of this invention. Sectional drawing (4 steps | paragraphs) equivalent to FIG. 10 which shows the modification of the overlapping method of the contact lens packaging container of 2nd embodiment of this invention. The perspective view which shows the contact lens packaging container as 3rd embodiment of this invention. The top view of the container main body of the contact lens packaging container shown in FIG. XXIII-XXIII sectional drawing in FIG. FIG. 24 is a cross-sectional view corresponding to FIG. 23 when the contact lens packaging container shown in FIG. Sectional drawing equivalent to FIG. 10 which shows the overlapping method of the contact lens packaging container of 3rd embodiment of this invention (3 steps | paragraphs). Sectional drawing (4 steps | paragraphs) equivalent to FIG. 8 which shows the overlapping method of the contact lens packaging container of 3rd embodiment of this invention.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the contact lens packaging container 10 as 1st embodiment of this invention is shown by FIGS. The contact lens packaging container 10 includes a container main body 12 and a cover sheet 14. The contact lens 16 as an ophthalmic lens and a storage solution 18 are accommodated in the container main body 12, and the cover sheet 14 is stored in the container main body 12. The contact lens 16 is hermetically accommodated by being releasably fixed to the contact lens 16, and the cover sheet 14 can be peeled off from the container body 12 and the contact lens 16 can be taken out as necessary.

  More specifically, the container body 12 is configured to include a recessed portion 20 that accommodates the contact lens 16 and the preservation solution 18 and a flange-shaped portion 22 that spreads in a bowl shape from the opening peripheral edge of the recessed portion 20 over the entire circumference. It is integrally formed by injection molding or the like with a synthetic resin such as polypropylene or polyethylene. The hollow portion 20 has a substantially hemispherical shell shape that is flat in the thickness direction, and the inner surface 26 of the hollow portion 20 is a spherical concave surface having a substantially constant radius of curvature: rc (see FIG. 4). On the other hand, the flange-shaped portion 22 that spreads in a bowl shape from the opening peripheral edge of the recessed portion 20 is substantially flat extending in one side direction (right direction in FIGS. 1 and 2) that is one side of the recessed portion 20. It has the extension part 27, is exhibiting the thin substantially rectangular flat plate shape as a whole, and is integrally formed with the hollow part 20. As shown in FIG.

  Further, as shown in FIGS. 1, 2, and 4, the recess 20 contains a contact lens 16 and a storage solution 18, and a sufficient amount of storage solution for immersing the contact lens 16. 18 is filled. In addition, although the kind, material, etc. of the contact lens 16 and the preservation | save liquid 18 to be accommodated are not limited, in this embodiment, the contact lens 16 is hydrophilic software made of, for example, HEMA (hydroxyethyl methacrylate). In addition to being a contact lens, the preservation solution 18 can prevent the contact lens 16 from drying and can maintain the contact lens 16 in a ready-to-use state, and is a sterile aqueous solution, isotonic saline, or the like. The

  On the other hand, the cover sheet 14 is formed of a laminate sheet made of a composite material of an aluminum foil and a synthetic resin, and has a planar shape corresponding to the outer shape of the container body 12, for example, a rectangular shape as shown in FIG. have. Further, the cover sheet 14 is fixed to the container body 12 by heat sealing or the like. For example, as shown in FIG. A substantially annular fixing surface 28 is formed so as to continuously extend with a substantially constant width over the entire circumference in the direction. The cover sheet 14 is superposed on the fixing surface 28 and fixed by an arbitrary method such as heat sealing, ultrasonic sealing, adhesive, etc., so that the cover sheet 14 is releasably fused to the container body 12. The recess 20 is covered with a cover sheet 14 in a fluid-tight manner. In addition, when the cover sheet 14 is fixed to the container main body 12, the contact lens 16 and the storage solution 18 are stored in advance in the recess 20 of the container main body 12, and the cover sheet 14 is fixed to the container main body 12. The contact lens packaging container 10 of this embodiment is realized. It should be noted that an appropriate display or design can be applied to the surface of the cover sheet 14 by printing or sticking, as necessary, before or after fixing to the container body 12.

  A side wall portion 30 extending downward is provided at an end portion of the extending portion 27 of the flange-shaped portion 22 located on the opposite side to the hollow portion 20. In addition, a recess 32 is provided in a substantially middle portion of the extending portion 27 of the flange-shaped portion 22. In addition, the extension length from the flange-shaped part 22 of the extension part 27 is appropriately set in consideration of a pedestal function and gripping ability when turning the cover sheet 14.

  The contact lens packaging container 10 according to the present invention can be superposed on a pair. As shown in FIGS. 6 and 7, the two contact lens packaging containers 10 are assembled with their lower surfaces facing each other. At this time, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 is accommodated in the recess 32 of the other contact lens packaging container 10, and vice versa. That is, the two contact lens packaging containers 10 are rotated by 180 ° with each other with the bottom surfaces of the hollow portions 20 facing each other, and are superimposed. In addition, the flange-like parts 22 of the two contact lens packaging containers 10 are arranged to face each other with a gap in a parallel state.

  Here, the shape of the recess 32 may be any shape as long as the bottom outer surface 34 of the recess 20 can be accommodated, but the dimension in the overlapping direction of the pair of contact lens packaging containers 10 that are overlapped with each other as described above. In order to reduce the size, the opening is formed in a substantially circular shape in plan view, and the central axis of the recess 32 is coaxial with the central axis of the recess 20 of the other container body 12 accommodated in the recess 32. It is desirable to be provided. Thereby, when one container main body 12 is overlapped with another container main body 12, the overlapping height can be reduced efficiently while positioning the recesses 20 and the recesses 32 advantageously. . Further, the shape of the recess 32 is preferably formed so that the hole diameter gradually increases from the upper surface 36 to the lower surface 38 of the extending portion 27 as shown in FIGS. . The recess 32 may have a concave shape that opens to the lower surface of the extension portion 27 without penetrating the extension portion 27 in the plate thickness direction.

  Furthermore, in the contact lens packaging container 10 of the present embodiment, the recess 20 has a concave shape whose depth is smaller than that of the hemisphere, and the radius of curvature: rc in the longitudinal section of the inner surface 26 of the recess 20 is: It is desirable that the radius of curvature of the front surface of the contact lens 16 is set so as to satisfy the formula: 1.0 ≦ rc / R ≦ 1.2. That is, when the curvature radius rc in the longitudinal section of the inner surface 26 of the recess 20 is smaller than the curvature radius R of the contact lens 16 accommodated in the recess 20, the contact lens 16 comes into contact with the inner surface 26 of the recess 20. The contact lens 16 may be stressed to cause deformation wrinkles during distribution and storage. If the radius of curvature rc of the inner surface 26 of the recess 20 is larger than 1.2 times the radius of curvature R of the front surface of the contact lens 16, the recess 20 becomes larger than necessary, leading to an increase in size. . Therefore, by satisfying 1.0 ≦ rc / R ≦ 1.2, the contact lens 16 can be stored without exerting stress, and the dent 20 can be prevented from being enlarged more than necessary. . It should be noted that the maximum protruding height of the recess 20 from the flange-like portion 22 is preferably 4 to 8 mm, and more preferably 4 to 5 mm. Further, as shown in FIG. 4, the maximum projecting height of the recessed portion 20 from the flange-shaped portion 22 is formed to be substantially equal to the extending length from the extending portion 27 of the flange-shaped portion 22 of the side wall portion 30. .

  The contact lens packaging container 10 of this embodiment having such a structure can be accommodated in a space-saving manner in the secondary packaging container 44 shown in FIG. For example, as shown in FIG. 8A, a plurality of contact lens packaging containers 10 (five in this embodiment) are arranged in a line and connected to each other by a common continuous cover sheet 40. In order to make it easy to separate the individual contact lens packaging containers 10, the cover sheet 40 is provided with a given breaking line 42 at the part of the separation line between the individual contact lens packaging containers 10. Next, as shown in FIG. 8B, the multiple contact lens packaging containers 10 connected to each other by the cover sheet 40 are rotated 180 ° with each other with the bottom outer surfaces 34 of the recesses 20 facing each other. And overlap. Furthermore, three sets of units, each of which is a combination of two contact bodies of five contact lens packaging containers 10, can be stored in one secondary packaging container 44.

  The secondary packaging container 44 shown in FIG. 9 is made of cardboard or the like, and is formed in a substantially rectangular box shape. The upper wall 46 of the secondary packaging container 44 is configured to be able to open the secondary packaging container 44 so as to rotate upward about the rear hinge line 52. Side flaps 54 that can be pushed into The upper wall 46 has a front flap 56 that hangs down, and a latch tab 58 is formed at the center of the lower edge of the front flap 56. The latch tab 58 is inserted into a latch slit 60 formed in the center of the front wall 48 so that the secondary packaging container 44 is held in a closed state.

  Next, the effect at the time of using the contact lens packaging container 10 of this embodiment is demonstrated using FIG.10 and FIG.11. 10 (b) and 11 (b) show the individual contact lens packaging containers 10 shown in FIGS. 10 (a) and 11 (a) separated in the height direction. It is an auxiliary drawing for facilitating understanding. 10A is a cross-sectional view of a state in which three sets of units in which two of the five contact lens packaging containers 10 shown in FIG. 8B are overlapped are accommodated in the secondary packaging container 44. FIG. The figure is shown. As is clear from FIG. 10A, in each unit, in the overlapping direction of the pair of contact lens packaging containers 10, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 is the other contact lens packaging. It fits into a recess 32 provided in the extension 27 of the container 10 and is in contact with the cover sheet 14 of the other contact lens container 10. Therefore, in the vertical direction of FIG. 10A, which is the overlapping direction of the pair of contact lens packaging containers 10, the height dimension H1 of each unit is one contact lens packaging container 10 in the vertical direction of FIG. The height dimension h (the sum of the height dimension of the container body 12 and the thickness dimension of the cover sheet 14) is added to the thickness dimension wa of the cover sheet 14 of the other contact lens packaging container 10 (H1 = h + wa). In short, the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 10 reaches the cover sheet 14 through the recess 32 provided in the extension 27 of the other contact lens packaging container 10. Therefore, in each unit, the height dimension can be reduced only by the plate thickness dimension w of the extending portion 27 of the other contact lens packaging container 10.

  On the other hand, in the case of the contact lens packaging container 62 of the conventional example shown in FIG. 11A, since the recess is not provided in the extending portion, the figure is a direction in which the pair of contact lens packaging containers 62 are overlapped. 11A, the height dimension H2 of each unit is equal to the height dimension h of one contact lens packaging container 62 in the vertical direction of FIG. 11A (the height dimension of the container body 12 and the cover sheet). 14) and the thickness dimension w of the extension part of the other contact lens packaging container 62 and the thickness dimension wa of the cover sheet 14 (H2 = h + w + wa).

  Therefore, in a state where three sets of units are accommodated in the secondary packaging container 44, the use of the contact lens packaging container 10 of the present embodiment extends the length compared to the case where the contact lens packaging container 62 of the conventional example is used. The height dimension can be reduced by 3 times (3w) the plate thickness dimension w of the protruding portion 27.

  As described above, according to the present embodiment, a plurality of contact lens packaging containers 10 are overlapped with each other so that the bottom outer surface 34 of the recessed portion 20 of one container body 12 is recessed in the other container body 12. 32. Thereby, the height of the stacked contact lens packaging containers 10 in the overlapping direction can be reduced by the amount that the bottom outer surface 34 of the recessed portion 20 is accommodated in the recess 32. Therefore, the secondary packaging container 44 in which a large number of contact lens packaging containers are stacked and stored can be reduced in size, and distribution costs and storage space can be reduced.

  Further, by projecting the pair of contact lens packaging containers 10 so that the bottom outer surfaces 34 of the recessed portions 20 of the container main bodies 12 face each other and the container main bodies 12 are rotated 180 ° from each other, It will be included. As a result, it is possible to carry it stably for traveling or the like, and it is possible to prevent damage to the cover sheet 14 on which the design or the like is applied.

  Hereinafter, some contact lens packaging containers as another embodiment of the present invention will be further illustrated. In the embodiments described below, members and parts having the same structure as the first embodiment are illustrated in the drawings. The same reference numerals as those in the first embodiment are used to omit the detailed description thereof.

  That is, FIGS. 12 to 17 show a contact lens packaging container 64 as a second embodiment of the present invention. The contact lens packaging container 64 includes (i) a point in which a recessed portion 66 described later is provided in the covering sheet 14 of the recessed portion 20, and (ii) a portion of the covering sheet 14 that is placed on the extending portion 27. An embodiment different from the first embodiment in terms of shape is shown.

  More specifically, a recessed portion 66 that is recessed toward the recessed portion 20 is formed in a corresponding portion of the cover sheet 14 that covers the opening of the recessed portion 20 in the contact lens packaging container 64 of the present embodiment. The recess 66 provided in the cover sheet 14 has a substantially hemispherical shell shape that is flat in the thickness direction, similar to the recess 20. The shape of the recessed portion 66 may be any shape as long as the bottom outer surface 34 of the recessed portion 20 can be accommodated, but in order to be accommodated compactly, a spherical recessed surface having a substantially constant radius of curvature: rs In addition, it is desirable that rs be larger than the radius of curvature rc in the longitudinal section of the inner surface 26 of the recess 20 (see FIG. 15). As a result, the contact lens 16 can be stored compactly between the inner surface 26 of the recess 20 and the recess 66 of the cover sheet 14. Further, it is desirable that the central axis of the recessed portion 66 is provided so as to be coaxial with the central axis of the recessed portion 20 of the other container body 12 accommodated in the recessed portion 66. Thereby, when one container main body 12 is overlapped with another container main body 12, the overlapping height can be reduced efficiently while positioning the recesses 20 and the recesses 66 advantageously. .

  Further, the shape of the cover sheet 14 at the portion covering the extended portion 27 provided with the recess 32 in the contact lens packaging container 64 of the present embodiment is exposed to the outside at the portion corresponding to the recess 32. A through hole 68 is provided to do this. The cover sheet 14 may be formed in a short length that does not cover the recess 32. Moreover, in this embodiment, the diameter dimension of the recess 32 which penetrates the extension part 27 is made larger than the recess 32 in the contact lens packaging container 10 of 1st embodiment, and the opening peripheral part of the hollow part 20 is shown. The diameter is approximately the same (see FIG. 13B).

  Furthermore, a notch portion 70 that opens to the lower end portion is formed in the side wall portion 30 that extends downward from the end portion of the extending portion 27 of the flange-shaped portion 22, which is located on the opposite side to the hollow portion 20. A pair of engaging portions 71, 71 are formed at both end portions of the notch portion 70. On the other hand, a pair of notch-like engagements with which the engaging portions 71 and 71 are locked are provided at the end edge portion (on the left side in FIGS. 13A and 13B) of the flange-like portion 22 on the hollow portion 20 side. Stop portions 72 are provided.

  Next, a method for overlaying the contact lens packaging container 64 will be described with reference to FIG. As shown in FIG. 17, the pair of contact lens packaging containers 64 are overlapped with each other so that the bottom outer surfaces 34 of the recesses 20 are opposed to each other and rotated 180 ° relative to each other. At this time, in a state where the bottom outer surface 34 of the recessed portion 20 of one contact lens packaging container 64 protrudes through the recess 32 of the other contact lens packaging container 64 and the through hole 68 penetrating through the cover sheet 14. Stored and vice versa. Here, since the diameter dimension of the recess 32 of the contact lens packaging container 64 is substantially the same as or larger than the diameter dimension of the opening peripheral edge portion of the recess 20, the pair of contact lens packaging containers 64 is The other recesses 20 are fitted into the other recesses 32 so that the flanges 22 are overlapped in parallel with each other. At that time, the engaging portions 71 and 71 of the side wall portion 30 of one contact lens packaging container 64 and the engaging portions 72 and 72 of the other contact lens packaging container 64 are brought into contact with each other, and the engaging portions 71 and 71 are brought into contact with each other. After engaging elastically in a direction away from each other and overcoming the engaging portions 72, 72, the engaging portions 71, 71 and the engaging portions 72, 72 are engaged by elastically returning to the original shape. Thus, the contact lens packaging containers 64 can be locked in a superposed state. Accordingly, a locking mechanism between the contact lens packaging containers 64 can be provided with a simple structure, and the portability of the contact lens packaging container 64 can be improved. In addition, the engagement structure using the above-mentioned notch part 70 and the latching | locking part 72 is an example, and an engagement structure is not limited to this.

  Moreover, many contact lens packaging containers 64 can be stacked by repeating the above overlapping operation. For example, FIG. 18 shows a configuration in which four contact lens packaging containers 64 are alternately stacked in this manner, and FIG. 19 shows a configuration in which eight contact lens packaging containers 64 are stacked in a staggered manner. 18A shows a state before the two units 74 and 74 of the pair of contact lens packaging containers 64 overlapped as shown in FIG. 17 are overlapped, and FIG. A unit 76 is shown in a state where the two units 74, 74 are overlapped. FIG. 19A shows a state before the two units 76 and 76 shown in FIG. 18B are overlapped, and FIG. 19B shows a unit 78 where the two units 76 are overlapped. It is shown.

  As apparent from FIGS. 18 and 19, in the contact lens packaging container 64 of the present embodiment, the concave portion 66 is provided in the portion located on the concave portion 20 of the cover sheet 14, and therefore, FIG. 18. When the two units 74, 74 shown in (a) are overlapped with each other, the recess 32 of one unit 74 and the bottom outer surface 34 of the recessed portion 20 protruding from the through hole 68 are the cover sheet 14 of the other unit 74. And is accommodated in the recess 66 (see FIG. 18B). Further, when the two units 76, 76 shown in FIG. 19A are overlapped with each other, the bottom outer surface 34 of the recessed portion 20 protruding from the recess 32 and the through hole 68 of one unit 76 is the other unit 74. The cover sheet 14 is fitted and accommodated in the recess 66 (see FIG. 19B). Thus, according to the contact lens packaging container 64 of the present embodiment, the height dimension in the overlapping direction of each contact lens packaging container 64 using the recess 66 provided in the cover sheet 14 (FIG. 18, The vertical dimension in FIG. 19 can be further absorbed and reduced.

  By such a stacking method, the height required per contact lens packaging container 64 is estimated. For example, if the height H3 (see FIG. 17) for one contact lens packaging container 64 is 5.5 mm, the height H4 when four contact lens packaging containers 64 are overlapped as shown in FIG. In addition, as shown in FIG. 19, the height H5 when the eight contact lens packaging containers 64 are overlapped is 16.3 mm. Compared to the case of the contact lens packaging container 10 of the above-described embodiment, the height when the four are overlapped is slightly smaller than the height of 11.4 mm in the case of the first embodiment. It can be seen that the height is much smaller than the height of 22.8 mm in the case of the embodiment and can be stored compactly.

  Furthermore, another overlapping method of the contact lens packaging container 64 will be described with reference to FIG. FIG. 20A is an auxiliary drawing for easy understanding. As shown in FIG. 20 (a), first, four contact lens packaging containers 64 are superposed one by two in a state where each recess 20 protrudes in the same direction, and then the two sets of contact lens packaging are superimposed. In a state where the bottom outer surfaces 34 of the hollow portions 20 of the container 64 are arranged facing each other, they are rotated by 180 ° with respect to each other, and then overlapped. The assembly of the four contact lens packaging containers 64 superposed in this way is referred to as a unit 80. In the unit 80, the engaging part 71 and the engaging part 72 can be locked only in the two contact lens packaging containers 64 arranged in the center.

  Also, by repeating these steps, a large number of contact lens packaging containers 64 can be stacked. When the height required per contact lens packaging container 64 is estimated by such a stacking method, for example, the height H3 (see FIG. 17) in the case of one contact lens packaging container 64 is 5.5 mm. Then, as shown in FIG. 20, the height H6 in the case of the unit 80 in which the four contact lens packaging containers 64 are overlapped is 9.0 mm. It can be seen that this value can be made significantly smaller than the height of 11.0 mm when the four stacking methods of the embodiment are stacked.

  As described above, in the contact lens packaging container 64 of the present embodiment, the recessed portion 20 of one contact lens packaging container 64 enters the recessed portion 20 of the other contact lens packaging container 64 to increase the height in the overlapping direction. The size can be further reduced. Therefore, it is possible to reduce the size of the secondary packaging container 44 and to accommodate more contact lens packaging containers 64 in the secondary packaging container 44.

  In the stacking method using the contact lens packaging container 64 described here, the plurality of contact lens packaging containers 64 are opposed to each other in a state in which the recessed portions 20 of the container body 12 protrude in the opposite direction, and the container body 12 Or a pair of contact lens packaging containers 64, 64 in which the above-described contact lens packaging containers 64 are superimposed in a state in which the respective recessed portions 20 protrude in the same direction. In addition, the case where the dent portions 20 are opposed to each other and are superposed in a state where the dent portions 20 are rotated by 180 ° is illustrated, but various other stacking methods are conceivable. For example, a plurality of contact lens packaging containers 64 may be superposed by randomly mixing the exemplified superposition methods.

  21 to 23 show a contact lens packaging container 82 as a third embodiment of the present invention. The left and right side views and the front and rear views are the same as those in FIGS. Such a contact lens packaging container 82 shows an embodiment different from the second embodiment regarding the shape of the recess 32. Specifically, as shown in FIGS. 21 to 23, the shape of the recess 32 is formed so that the hole diameter is larger on the upper surface 36 side than on the lower surface 38 side.

  Next, a method for overlaying the contact lens packaging container 82 will be described with reference to FIG. As shown in FIG. 24, one contact lens packaging container 82a is overlapped on the other contact lens packaging container 82b rotated by 180 ° in a state where each recess 20 protrudes in the same direction. The bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a is accommodated in a form protruding from the recess 32 of the other contact lens packaging container 82b. The contact lens packaging container 82b superposed in this way is referred to as a unit 84. Here, the diameter dimension on the upper surface 36 side of the recess 32 is formed to be slightly larger than the diameter dimension of the opening peripheral edge portion of the recess 20 and the diameter dimension of the base end portion of the bottom outer surface 34. Accordingly, as shown in FIG. 24, the contact lens packaging container 82a is overlaid from above the contact lens packaging container 84b, and the bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a penetrates the through hole 68 and the recess 32. And the flange-like portions 2 are overlapped with each other. As shown in FIG. 25, in addition to the contact lens packaging containers 82a and 82b, other contact lens packaging containers 82c are opposed to each other in a state where the recessed portions 20 of the container main bodies 12 protrude in the same direction. The container main bodies 12 are superposed with being alternately rotated by 180 °, and the bottom outer surface 34 of the recessed portion 20 of the contact lens packaging container 82a passes through the recess 32 of the extending portion 27 of the contact lens packaging container 82b. The contact lens packaging container 82c is accommodated in a projecting state, and the bottom outer surface 34 of the recess 20 of the contact lens packaging container 82a projecting from the recess 32 of the extension part 27 of the flange-shaped part 22 of the contact lens packaging container 82b. Are accommodated in the recessed portion 66 of the cover sheet 14 and the flange-like portions 22 are overlapped with each other. The three contact lens packaging containers 82 superposed in this way are referred to as a unit 86. Also, by repeating these steps, a large number of contact lens packaging containers 82 can be stacked.

  Next, by using FIG. 26, it is estimated how much the height in the overlapping direction can be reduced by using the contact lens packaging container 82 of the present embodiment. FIG. 26 (a) shows the individual contact lens packaging containers 82 shown in FIG. 26 (b) separated in the height direction. For example, if the height dimension H7 in the case of one contact lens packaging container 82 is 5.5 mm, the height dimension H8 is 8 in the unit 88 when four contact lens packaging containers 82 are overlapped as shown in FIG. .5mm. This value is compared with the height dimension value 11.0 mm when the four are overlapped in the first embodiment and the height dimension value 9.0 mm when the four are overlapped in the second embodiment. It can be seen that it can be small. Further, since there is no need to reverse the contact lens packaging container 82, it is possible to reduce the size in the stacking direction while simplifying the manufacturing process.

  In addition, when the protrusion height from the extension part 27 of the flange-shaped part 22 of the side wall part 30 protrudes beyond the protrusion height of the recess part 20, etc., the recess part is formed in the cover sheet 14 on the recess part 20. Without providing 66, the thickness may be reduced simply by penetrating the recess 20 through the through hole 68 and projecting.

  In the stacking method using the contact lens packaging container 82 described here, the plurality of contact lens packaging containers 82 are opposed to each other in a state in which the recessed portions 20 of the container body 12 protrude in the same direction, and the container body 12 Although the case where they are stacked in a state where they are alternately rotated by 180 ° has been illustrated, various other stacking methods are conceivable. For example, the contact lens packaging containers 82 may be overlapped in a state where the respective recessed portions 20 of the container main bodies 12 face each other in a protruding state in the same direction. That is, the specific stacking method using the contact lens packaging container 82 described in the present embodiment is not limited to the one exemplified above.

  As mentioned above, although embodiment of this invention was explained in full detail, these are illustration to the last, Comprising: This invention is not limited at all by the specific description in these embodiment.

  The contact lens packaging container 10 shown in FIG. 1 is not provided with a pair of engaging portions and locking portions, but can be provided as necessary. For example, a pair of engaging portions 71 and a locking portion 72 as shown in FIGS. 12 and 21 may be provided, or a notch-shaped notch is provided on the protruding end surface of the side wall portion 30 to form an engaging portion. The flange-shaped portion 22 may be provided with a protruding locking portion that locks to the engaging portion.

  In addition, the container body 12 can be appropriately formed with reinforcing outer peripheral vertical walls and ribs, peeling assisting and punching holes, anti-slip irregularities for gripping, etc. The target shape is not limited to the shape of the above embodiment.

  In addition, the shape, size, and the like of the flange-shaped portion 22 can be arbitrarily set in consideration of usability, packing property, and the like, and are not limited to the shape of the illustrated flange-shaped portion 22.

  In addition, the contact lens packaging container according to the present invention accommodates various ophthalmic lenses such as hard contact lenses and intraocular lenses in addition to soft contact lenses including various disposable types such as for myopia, hyperopia, and presbyopia. Of course it is possible. In addition, the contact lens packaging container according to the present invention can be used as an ophthalmic lens container for provision to end users such as consumers, for example, for ophthalmic use for provision from a manufacturer to a medical institution, etc. It can also be used as a lens container.

  In addition, when the container body 12 according to the present invention used in the exemplified contact lens packaging containers 10, 64, 84 is stored in a production line or the like before the contact lens packaging containers 10, 64, 84 are manufactured. In addition, the bottom outer surface 34 of the recess 20 of one container body 12 is fitted into the recess 32 of the other container body 12 and overlapped, thereby contributing to a reduction in storage space during storage of the container body 12 as well. It is possible.

  In addition, although not listed one by one, the present invention can be implemented in a mode to which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the invention.

10, 64, 82: Contact lens packaging container, 12: Container body, 14: Cover sheet, 16: Contact lens, 18: Preservation liquid, 20: Recessed part, 22: Flange-like part, 26: Inner surface, 27: Extension Part: 28: fixing surface, 30: side wall part, 32: recess, 34: bottom outer surface, 44: secondary packaging container, 66: recessed part, 68: through hole, 70: notch part, 71: engaging part, 72: Locking part

Claims (12)

A container main body having a hollow portion for storing a contact lens and a preservative solution, a substantially flat flange-shaped portion extending in the outer peripheral direction from an opening peripheral edge portion of the hollow portion, and an opening of the hollow portion superimposed on the container main body A cover sheet that covers the portion, the cover sheet is detachably fixed around the opening of the recess, and the contact lens and the preservation solution are sealed in the recess. On the other hand, in the contact lens packaging container, the container body is adapted to be stored in a state where it is overlapped with another container body.
The flange-shaped portion of the container body has an extending portion extending to one side of the recessed portion, and a recess is formed in the extending portion, and the container body is A contact lens packaging container, wherein the outer surface of the bottom of the recess of the container body is accommodated in a recess of the other container body when the container body is overlaid and stored. .   A pair of engaging portions and a locking portion are formed at two locations separated from each other of the container main body, and provided on the container main body when the container main body is overlapped with the other container main body. The engaged state and the engaging portion are engaged with the engaging portion and the engaging portion provided in the other container main body, so that the overlapping state is maintained. The contact lens packaging container according to claim 1. While the flange part of the container body is provided with a side wall part extending to the side from which the hollow part protrudes, the engaging part is formed on the side wall part,
Furthermore, when the container body is overlapped with the other container body and the bottom outer surfaces of the recesses facing each other on the flange portion of the container body and rotated 180 ° relative to each other, The contact lens packaging container according to claim 2, wherein the locking portion is provided at a position corresponding to the engaging portion provided on the side wall portion.   The contact lens packaging container according to any one of claims 1 to 3, wherein a maximum protrusion height of the hollow portion from the flange-shaped portion of the container body is 4 to 8 mm.   The concave portion of the container body has a concave shape smaller than the hemisphere, and the curvature radius rc in the longitudinal section of the inner surface of the concave portion is expressed by the formula: 1.0 with respect to the curvature radius R of the front surface of the contact lens. The contact lens packaging container according to any one of claims 1 to 4, which is set so as to satisfy ≤rc / R≤1.2.   The other container body in which the recess provided in the extension part of the container body has a substantially circular opening in plan view, and the central axis of the recess is accommodated in the recess. The contact lens packaging container according to claim 5, wherein the contact lens packaging container is provided so as to be coaxial with a central axis of the hollow portion. The recess of the container main body is formed by a through hole that penetrates the extension portion, and the bottom outer surface of the recess portion of the other container main body on which the through hole is overlapped is the through hole. While being provided in a size that can protrude from the extension through the
The contact lens packaging container according to any one of claims 1 to 6, wherein the cover sheet has a recessed portion that is recessed toward the recessed portion at a portion that covers the opening of the recessed portion. A container main body having a hollow portion for storing a contact lens and a preservative solution, a substantially flat flange-shaped portion extending in the outer peripheral direction from an opening peripheral edge portion of the hollow portion, and an opening of the hollow portion superimposed on the container main body A cover sheet that covers the portion, the cover sheet is detachably fixed around the opening of the recess, and the contact lens and the preservation solution are sealed in the recess. On the other hand, in a container body used for a contact lens packaging container that is adapted to be stored in a state where the container body is overlapped with another container body,
A container body comprising the configuration according to any one of claims 1 to 7. A contact lens packaging container stacking method for stacking a plurality of contact lens packaging containers,
While the contact lens packaging container according to any one of claims 1 to 7 is used as the contact lens packaging container, of the plurality of contact lens packaging containers, the container body of one of the contact lens packaging containers Stacking the one contact lens packaging container and the other contact lens packaging container in a state where the bottom outer surface of the recess is accommodated in the recess of the container body of the other contact lens packaging container;
A method of stacking contact lens packaging containers.   The one contact lens packaging container and the other contact lens packaging container are overlapped with the bottom outer surfaces of the recesses of the container bodies facing each other and the container bodies rotated 180 degrees relative to each other. The bottom outer surface of the recess of the one contact lens packaging container is accommodated in the recess of the extension of the other contact lens packaging container, while the bottom of the recess of the other contact lens packaging container The method for stacking contact lens packaging containers according to claim 9, wherein an outer surface is accommodated in the recess of the extending portion of the one contact lens packaging container.   The one contact lens packaging container and the other contact lens packaging container are opposed to each other in a state where each of the recessed portions of the container body protrudes in the same direction, and the container bodies are rotated by 180 ° relative to each other. The contact lens packaging container according to claim 9, wherein the outer surface of the bottom portion of the recess portion of the one contact lens packaging container is accommodated in the recess of the extension part of the other contact lens packaging container. How to stack. While using the contact lens packaging container according to claim 7 as the contact lens packaging container,
In addition to the one contact lens packaging container and the other contact lens packaging container, the other contact lens packaging containers are opposed to each other in a state in which the respective recessed portions of the container bodies protrude in the same direction, The container bodies are stacked in a state where they are alternately rotated by 180 °,
The bottom surface of the recess of the one contact lens packaging container is accommodated in a state of protruding through the through hole of the extension part of the other contact lens packaging container, and the other contact lens packaging container The contact lens according to claim 9, wherein the recess of the one contact lens packaging container protruding from the extension of the contact lens is accommodated in a recess of the recess of the further contact lens packaging container. How to stack packaging containers.

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