JP5953520B2 - Contact lens holder - Google Patents

Description

  The present invention relates to a contact lens holder having a novel structure, and in particular, it is easy to take out a contact lens and can be stably stored, the handling of the entire equipment is simple, and the manufacturing cost is reduced. It is about.

  Contact lenses (hereinafter simply referred to as “lenses”) are used continuously, but they are removed during sleep, etc., stored and stored in a container, and various functions that have been reduced by cleaning or wearing the lenses. Let me recover. In recent years, lenses that are discarded after continuous wear or daily disposable lenses are also used in the market. Therefore, it seems that a container for storing the worn lenses is not necessarily required. However, since it is stored in a predetermined container at the distribution stage, it is preferable that the container be easily removed when the lens is first taken out. In the end, there is a potential demand for improvements to the container, storage and holder for storing the lens.

  In addition, since the lens is a highly managed medical device for correcting vision, it is placed directly on the cornea, so it is very important to store it safely and stably. On the other hand, when viewed as a product, since the container and the holder follow the lens mainly, there is a situation in which development and manufacturing costs are not so much applied to the subordinate.

  As a technique related to a conventional lens storage unit or holder, for example, there is a lens holder (Patent Document 1) made of a single molded body for the purpose of reducing the manufacturing cost. In this holder, a lens housing portion is formed in a mesh shape in order to make contact when disinfecting with the hydrogen peroxide solution in the container. Furthermore, it has a separating part so as to hold the pair of lenses separately, and the separating part is also provided with a mesh. As a result, the disinfectant in the container is sufficiently distributed in the lens in each storage state. This lens holder is formed by forming two basket portions that can be bent at the separation portion and cover the respective surfaces of the separation portion. Since these parts are manufactured by integral molding, the manufacturing cost is reduced, and a holder suitable for the purpose is provided. However, in this holder, after the lens is housed in the cage portion, the cage portion is engaged with the separating portion so as to be close thereto. At this time, the accommodated lens may move somewhat in the cage portion, and the lens may be sandwiched between the cage portion and the separation portion during engagement. In addition, it is necessary to open and close the left and right storage units separately, and the opening / closing operation, taking out of the lens, and storage operation are complicated.

  Similarly to the above, as another aspect of storing the lens in the cage-like storage unit, a container (Patent Document 2) characterized by venting gas generated during decomposition of hydrogen peroxide and delaying the introduction of the neutralizing agent are delayed. In addition, there is a container (Patent Document 3) that can surely perform disinfection and the like. Both of them use a conventionally known lens holder, and there are separate problems to be solved. The former is how the generated gas is discharged from the container, and the latter is in the time difference between disinfection and neutralization. In other words, the holders described in these documents are for taking out or storing the lenses one by one, and it is necessary to open and close the holder at least twice for wearing.

  In addition, as a container for storing a disposable lens, there are disposable storage containers (Patent Document 4, Patent Document 5, and Patent Document 6) that reliably eliminate the situation of repeated use by a user and cannot be resealed. . These proposals are made in order to solve the problem in the method (for example, patent document 7 etc.) which seals the lens accommodating part opening employ | adopted as the container for general disposable lenses with a film. In the case of sealing with a film, it is necessary to strictly manage the bonding process, which is inconvenient in production.

  If the lens can be sealed simply by assembling the container without the film bonding step, the (bonding) step management becomes unnecessary. However, since these containers are formed entirely of resin instead of using a film, the container can be used repeatedly as a user. Then, although it is a disposable lens, there is a possibility that the lens after use is stored and worn again, or the container is contaminated with microorganisms and the like so that hygiene management becomes insufficient. Preventing such a situation has become a new problem, and each of the above-described containers has been made to solve the problem. This is because the container and the lens can be periodically discarded if resealing is disabled. In other words, by omitting part of the process management, problems that occurred when lenses were used that did not become apparent originally appeared, and it can be said that they were solved. Accordingly, it is difficult to say that special consideration has been given to the ease of taking out the lens, and as usual, the taking out of the lens is performed one by one, and in this case, the lid has to be opened at least twice.

JP-A-6-51249 JP 9-103470 A Special Table 2002-532151 JP 2002-306227 A JP 2004-121645 A Japanese Patent Laid-Open No. 2005-121907 JP-A-6-296514

  An object of the present invention is to provide a holder having a structure in which a lens can be easily taken out from a lens storage state that has not been sufficiently considered in the conventional technology. It is a matter of course to stably hold the lens, and to provide a lens holder that can simplify the handling of the holder and can further reduce the manufacturing cost.

  The present invention includes a pair of left and right storage units that individually store lenses, a pair of left and right cover units that cover each storage unit, a foldable first connecting portion that connects each storage unit, and each cover unit. A foldable second connecting portion that connects, a foldable third connecting portion that connects the left storage portion and the left cover portion, and a foldable fourth connecting portion that connects the right storage portion and the right cover portion; , A lens holder. Then, in the opened state of the holder, the virtual straight lines that bisect each of the first to fourth connecting portions in the opening direction are respectively extended, and when the virtual straight lines are projected on the same plane, the figure connecting the intersections of the virtual straight lines Form a trapezoidal shape, with the imaginary straight line of the first connecting part as the lower base, the imaginary straight line of the second connecting part as the upper base, the virtual lines of the third connecting part and the fourth connecting part as hypotenuses, and the length of the lower base Are connected so as to be longer than the length of the upper base.

  In other words, the lens holder of the present invention has two lens storage portions and two cover portions covering the lens storage portions, and the storage portions and the cover portions are connected to each other and moved in cooperation with each other. In this way, the two lenses can be taken out (opened state). When the lens is held in the storage portion, the cover portions overlap each other to isolate the two lenses. When the lens is taken out, the overlapping of the cover part is released in accordance with the movement of the storage part, and the cover part is opened in a so-called pop-up manner due to the projection of the virtual straight line forming a trapezoid.

  Furthermore, it is preferable that the trapezoid formed by the virtual straight line is an isosceles trapezoid. This is because the balance of the entire holder is good both in the lens holding state and in the open state, and the movement of the cover is smooth and symmetrical. Further, when the lens is stored or taken out, there is an effect that the lens is not damaged and is easy to handle.

  For each connecting part, the first, third and fourth connecting parts are bent in the valley folding direction, and the second connecting part is bent in the mountain folding direction, so that the contact lens is held in each storage part. . In this case, each of these bending operations proceeds almost simultaneously. When the lens is taken out, the lens can be held or taken out with a single operation in order to move in the reverse direction.

  On the other hand, each cover part may have at least one through hole. This through hole is preferably formed so as to connect the lens storage spaces formed by the respective lens storage portions and the cover portions in a state where the lens is held and the cover portions are overlapped. This is because such a through-hole can absorb a partial pressure change in the entire storage portion by eliminating a pressure difference between the left and right lens storage spaces. In addition, it is suitable also when forming at least 1 through-hole in one side of a storage part, and storing in combination with the container prepared separately. This is because the flow of the processing liquid filled in the separate container can be promoted. In this case, it is more preferable that these through holes are each formed in a mesh shape.

  Furthermore, a handle may be provided in one of the left and right storage parts, and a fixing part with another part may be provided in the other. As another part, there are a container for storing the holder and a lid for sealing the storage container. When a portion that can be fixed to such another part is formed, the holder of the present invention is maintained in a stable position when the lens is taken out or stored. Therefore, handling of the lens becomes easier. In addition, if the handle is provided in the storage unit, the holder can be easily opened and closed.

  And the lens holder of this invention can be formed with a single molded object. This is because manufacturing costs are reduced and mass production is easy.

  In the contact lens holder of the present invention, the storage portion and the cover portion are connected in an annular shape by the connecting portions, and since each cover portion is connected, the lens can be taken in and out in one operation. Operability is improved. Moreover, since these structures can be folded, they can be compactly assembled as a whole, and are excellent in storage and carrying. Further, when the cover is opened from the folded state, the cover is opened in a so-called pop-up manner, and the left and right storage parts are opened in the same direction, so that the lens can be easily taken out and stored.

  Furthermore, since the lens holder is made into a single molded body by a manufacturing method such as injection molding using a resin or the like, stable quality can be maintained and mass production can be performed, which contributes to cost reduction.

FIG. 1 is a diagram illustrating a state in which virtual lines are projected on the same plane according to an example of the present invention. FIG. 2 is a view showing an example of the holder of the present invention in which the cover is flat and the storage is concave. FIG. 3 is a view showing an example of the holder of the present invention in which the cover portion is a flat surface and the storage portion is convex. FIG. 4 is a diagram illustrating a state in which an example of another container and an example of the present invention are combined. FIG. 4 (I) is an opened state of the holder, and FIG. FIG. 4 (III) is a top view and FIG. 4 (IV) is a cross-sectional view along the line AA. FIG. 5 is a diagram for explaining a state in which the entire holder according to the present invention is accommodated in another container. FIG. 5 (I) is an open state of the holder, and FIG. 5 (II) is a holder folded. FIG. 5 (III) is a diagram showing a state in which the entire holder is accommodated in another container. FIG. 6 is an explanatory diagram showing a process of shifting from a state in which the lens is housed to a state in which it can be taken out. FIG. 7 is a view showing another aspect of the engaging portion. FIG. 8 is a view showing another embodiment of the holder of the present invention. FIG. 9 is a diagram for explaining the names of the parts studied in the example.

The present invention relates to a lens holder that opens in such a way that it pops up when a book (a so-called pop-out picture book) is opened. The lens can be easily removed by a single opening operation. It is a holding tool. Conventional lens holders require one operation for each lens to be taken out, that is, at least twice for wearing the lens in both eyes. This is a significant difference from the prior art.
Hereinafter, description will be given based on the accompanying drawings.

  As shown in FIG. 1 as an example, the lens holder of the present invention has a pair of left and right storage parts (2A, 2B) for individually storing lenses, and a pair of left and right cover parts (3C, 3D) for covering each storage part. ), A foldable first connecting portion (5) connecting the storage portions, a foldable second connecting portion (6) connecting the cover portions, and connecting the left storage portion and the left cover portion. It is a contact lens holder (1) composed of a bendable third connecting part (7) and a bendable fourth connecting part (8) connecting the right storage part and the right cover part. In the opened state of the holder, a figure that connects virtual straight lines that bisect each of the first to fourth connecting portions in the opening direction and connects the intersections of the virtual straight lines when projected onto the same plane. Forms a trapezoid (9), the virtual straight line (5L) of the first connecting part is the lower base, the virtual straight line (6L) of the second connecting part is the upper base, and each virtual straight line of the third connecting part and the fourth connecting part (7L, 8L) is a hypotenuse, and the length of the lower base is connected so as to be longer than the length of the upper base. In addition, the two-dot chain line described in the storage part and the cover part shown in the drawing is shown to indicate that it is a curved surface, has no other special meaning, and is the same in other drawings. .

  The surface of the storage portion (2A, 2B) is smooth so as not to damage the lens, and preferably close to the curvature on the side where the lens to be stored contacts. Further, the lens is usually stored with the convex surface down, and the surface of the storage portion is correspondingly concave (see FIGS. 1 and 2). If the lens concave surface is to be stored, the storage portion is preferably convex (see FIG. 3). This is to prevent an unnecessary load from being applied to the lens being stored. For the same reason, the curvature of the storage section is set close to the curvature of the lens.

  As shown in FIGS. 1 and 2, when the storage portion is concave, when the lens is taken out, the lens is sandwiched between the fingertip and the surface of the storage portion, and the lens is taken out by sliding on the surface of the storage portion. Therefore, handling of the lens is easy. Further, since the lens is naturally arranged at the center of curvature of the concave surface of the storage portion by its own weight, the user can easily grasp the position of the lens and can pinch the lens accurately at the time of taking out.

  On the other hand, when the storage portions (12A, 12B) are convex as shown in FIG. 3, the surface that the fingertip touches when taking out is basically only the outer surface side of the lens. When the lens is worn on the eye, the inner surface side of the lens comes into contact with the cornea. Therefore, in terms of dirt and hygiene, it is preferable that the inner surface side should not be brought into contact with the fingertip as much as possible. Therefore, in this sense, there is an effect of making it convex. In the case of a soft contact lens, since the lens can be picked and taken out, it can be said that the structure is housed in a state where it can be easily picked up.

  In the operation for housing the lens, the lens after wearing may be put directly into the housing part, but after placing on the cover part side, the lens can be housed by folding the holder. it can. In FIG. 1, the storage portions (2A, 2B) are formed in a concave shape, and the cover portions (3C, 3D) are formed in a convex shape. In the case of such a structure, the lens can be placed on the side where the user can easily place it.

  The surface of the cover portion does not necessarily have to be convex or concave, and may be a flat surface. This is because it is only necessary to cover the opening of the storage section if the lens is completely accommodated on the storage section side. For example, as shown in FIG. 2 or FIG. 3, the cover portion (4C, 4D) is a flat surface. Of course, a combination in which the storage portion side is convex and the cover portion side is convex may be used, but the surface of the cover portion is preferably smooth. This is to prevent the lens from being scratched. Although it is possible to consider the cover portion side as a lens storage portion, in the present invention in which the cover cover portion is opened in a pop-up manner, the movement of the cover portion becomes large. It is preferable to store the lens on the side.

  In FIG. 1, the storage portion, the cover portion, and the first to fourth connecting portions (5 to 8) are arranged on substantially the same plane in the holding tool open state. However, for example, an open state in which the cover is inclined in advance toward the storage portion may be used. This is because the lens is accommodated in the accommodating portion, but it is sufficient that the cover lid portion is opened to some extent even if the cover lid portion is not opened 180 °. Specifically, in an open state, the virtual plane including the opening end portions of the left and right storage portions and the virtual plane including the outer peripheral end portion of the cover lid portion may be arranged to form an angle of about 80 °. This is because the lens can be taken out and stored without difficulty.

  Each virtual straight line (5L, 6L, 7L, 8L) shown in FIG. 1 is a straight line that bisects in the opening direction when each connecting portion is in the open state. This imaginary straight line can also be said to be a line that bisects the folding line of each connecting portion vertically. The present invention is characterized in that when each virtual straight line is projected on the same plane, a figure connecting the intersections of the virtual straight lines forms a trapezoid (9). By forming in this way, the left and right storage units can be opened and closed simultaneously by a single operation.

  Whether the storage space formed by the storage part and the cover part is in a dry state or filled with a solution can be appropriately selected depending on the lens used and the method of use. For example, when a non-hydrated hard contact lens or the like is distributed, it may be in a dry state, or when used as a distribution case for a hydrous soft contact lens or the like, it can be filled with an appropriate solution. When used as a distribution container for a disposable water-containing lens, a part of the solution is naturally discharged when it is opened, and there is an effect of preventing reuse and tampering.

  The holder shown in FIGS. 1 to 3 can be used as a container for storing a lens by itself. This is because, after storing the lens in each storage portion, the storage portion may be sealed by folding the cover portion so as to close it. At this time, it is desirable to provide an engaging portion as will be described later in order to stably maintain the sealed state.

  Each cover part shown in FIGS. 1-3 does not have a through-hole. On the other hand, the housing space of each lens may be communicated by making at least one through hole in each cover. Further, when the cover is overlapped when the holder is in the lens storage state and there is no gap between the two, the through holes need to be provided at the overlapping positions. This is to allow the storage spaces of the lenses to communicate with each other. On the other hand, as long as there are gaps between the cover portions even if they overlap, there is no need for the through holes to overlap each other. This through-hole communicates with each lens storage space to make the pressure in both spaces uniform, and the holder can receive an excessive impact and absorb the pressure change in one storage space as a whole. In addition, when the lens housing space is filled with the solution, there is an effect of preventing the solution components from becoming non-uniform by making the amounts of the liquids uniform and circulating.

  When there is another container that can be used in combination with the holder of the present invention, one or more through holes may be provided on the storage portion side. This is because the lens storage solution or the like in another container flows through the through hole, and the lens storage space can be filled with the storage solution. Specifically, FIG. 4 shows an example in which a through hole is provided in one storage part, and FIG. 5 shows an example in which a through hole is provided in both storage parts.

  In FIG. 4, the storage part (22A) is connected to the separate container (10), the cover part (13C, 13D), the storage part (22B), the first series connection part (15), the second connection part (16), The whole is comprised from the 3rd connection part (17) and the 4th connection part (18). Each of the storage part (22A) and the cover part (13C, 13D) is formed with one through hole (11), and the lens storage solution in the separate container (10) passes through each through hole. Water is passed through the storage space (see FIGS. 4II to IV).

  The feature of the configuration as shown in FIG. 4 is that the lens holder can be filled with liquid by placing the holder downward when storing the lens, and the holder is placed upward when taking out the lens. That is, the liquid is moved from the storage portion into the separate container (10). As a result, the lens position can be easily specified when the lens is taken out, and the storage solution is not spilled when the holder is opened. In addition, although the through-hole (11) is formed one each in FIG. 4, you may arrange | position in multiple or mesh shape. This is because the storage liquid or the like in another container can be easily distributed.

  FIG. 5 illustrates a case where the entire lens holder of the present invention is accommodated in another container (20). A plurality of through holes (21) are formed in a mesh shape in the storage part (32A, 32B), and the entire cover part (23C, 23D) and first to fourth connecting parts (25-28) are configured. Yes. The lens preserving solution or the like in the separate container (20) is passed through each mesh storage space from this mesh (see FIG. 5 (III)). In addition, although the example which does not have a through-hole in the cover part (23C, 23D) is shown in FIG. 5, you may form in one or more through-holes or mesh shape. Thereby, the circulation of the liquid is further promoted.

  The configuration shown in FIG. 5 is disadvantageous in that a lid (24) for another container is required and the number of parts is increased compared to the configuration shown in FIG. However, in FIG. 4, if the container is not inverted (FIG. 4 (II)) when the lens is stored, the lens in the storage section (22B) may be dried. In the configuration of FIG. 5, such a fear can be avoided because the separate container (20) can be filled with a sufficient storage solution or the like.

  Referring to FIG. 1 again, the trapezoid (9) has a virtual straight line (5L) at the first connecting portion at the lower bottom, a virtual straight line (6L) at the second connecting portion at the upper bottom, and a third connecting portion and a fourth connecting portion. Each hypothetical line (7L, 8L) is a hypotenuse, and the length of the lower base is longer than the length of the upper base. By being arranged in this structure, the cover lid portion opens in a so-called pop-up manner when shifting from the lens storage state to the open state. This trapezoid (9) is preferably an isosceles trapezoid. This is because a smooth movement upon opening is realized, and the balance of the entire holder and the manufacturing method are easy.

  When the lens by the holder of the present invention is housed, the housing part (2A, 2B) can be folded by bringing the housing part (2A, 2B) close so that the first connecting part (5) is a valley fold. Will be. At that time, the second connecting portion (6) is bent into a mountain fold, and the third connecting portion (7) and the fourth connecting portion (8) are bent into a valley fold. This state is shown in FIGS. 6 (I) to (V). In order to open in a pop-up manner, it is desirable that there is a certain relationship between the angle between the lower base of the trapezoid (9) and the hypotenuse, the length of the first to fourth connecting portions, etc. This will be described later using examples.

  Now, as can be seen from FIG. 6 (I), the holder of the present invention is folded to about 1/4 of the open state. In order to keep the state folded compactly in this way, it is preferable that the storage portion (2A) and the storage portion (2B) are connected by engagement portions (30E, 30F) that can be released. Of course, it is also possible to pack it with a vinyl sheet or rubber band from the outside in a folded state and maintain the folded state by an external element. If it is used as a distribution case, it may be sufficient, but if it is used as a storage case, an engagement portion (30E, 30F) is provided to maintain the state of FIG. 6 (I). Is preferred.

  It is important that the engaging portions are provided in the left and right storage portions when there is only one pair, and that at least one of each pair is provided on the storage portion side when there are two or more pairs. An example of only one pair is as shown in FIG. In the case of a pair, it can be easily understood that it is difficult to maintain the state of FIG. 6 (I) if one is a storage part and the other is a cover part. This is because the bent state of the first series contact portion (5) is difficult to maintain.

  When two pairs are provided, two pairs are provided only in the storage part as in FIG. 6, one pair is provided in the storage part (2A) and the cover part (3D), and the other pair is provided in the storage part (2B). Each can be provided on the cover (3C). However, if one of the two pairs is provided on the left and right cover parts (3D, 3C), it can be opened in a hop-up manner, which is a feature of the present invention, depending on the strength of engagement. This is because there is a risk that it will not be possible.

  As shown in FIG. 6 and FIG. 7 (III), the structure of the engaging portion is represented by the relationship between the pin (30F) and the cylinder (30E) into which the pin is inserted. The shape may be provided at any position. For example, as shown in FIG. 7 (I), a structure (34E, 34F) that locks in a hook shape is provided at the tip of the protruded wall surface, or the convex portion is sandwiched between concave grooves as shown in FIG. 7 (II). The structure (36E, 36F) that can be locked may be used.

  Further, when the holding tool is opened (FIG. 6 (V)), it is preferable that handles (39G, 39H) are provided in the storage portion. This is because in the lens storage state (FIG. 6I), the storage portion is locked by the engagement portions (30E, 30F), and this engagement is easily released. In addition, the handle can have an effect of protecting the storage portion from an external impact and an effect of stably placing the handle on a desk or table when handling the holder. The shape and arrangement of this handle are not limited to those shown in FIG. 6, such as those that cover the entire circumference of the storage portion in a ring shape, those that partially have a missing portion, those that erected two or more pillars or walls, etc. Various embodiments are possible.

  In FIG. 5, a fixing portion (29) for fixing to the lid (24) of the separate container (20) extends from the storage portion (32B). This fixing part has effects such as holding the holder (21) so as not to float in the separate container (20) and completely immersing the holder in the solution in the container. About the shape and arrangement | positioning of a fixing | fixed part, it is not limited to what is shown in FIG. 5, For example, you may fix to the inner peripheral wall surface and inner bottom face of another container (20). In particular, when fixing to the lid, the lens can be taken in and out separately from the solution in another container. Thereby, it is possible to prevent the solution from spilling into the surrounding environment and the lens from being difficult to handle due to the solution adhering to the fingertip.

  As still another aspect, FIG. 8 shows a holder (51) of the present invention. The holder of this example includes a mesh-shaped storage portion (42A, 42B), a mesh-shaped cover portion (43C, 43D), a pair of engagement portions (38E, 38F), first to fourth connecting portions (45 48), and has handles (49G, 49H) that act as a cover of the separate container (40) as a unit when the lens is housed. The lens is stored in this holder and placed in a separate container. In another container, a lens preserving solution or a disinfecting solution (for example, hydrogen peroxide solution) is filled in advance, and the lens in the storage unit can be cared for with the solution through the mesh.

  For example, an example in which the lens is cared for with hydrogen peroxide using the holder (51) of FIG. 8 will be described. The lens after wearing is lightly rinsed with a storage solution or a cleaning solution, and then placed in each storage section (42A, 42B). Next, each handle (49G, 49H) is brought close to bend in a valley fold with the first series contact portion (45) as a fulcrum. At this time, the third connecting part (47) and the fourth connecting part (48) are bent almost simultaneously, and the second connecting part (46) is bent almost simultaneously. Each handle contacts, and the folded state is maintained by the engaging portions (38E, 38F) (FIG. 8 (II)). That is, the lens is housed in each housing section, and each handle can be used as a cover of the separate container (40) as a unit.

  The separate container is prefilled with hydrogen peroxide solution for disinfection of the lens, and the holder is immersed in the hydrogen peroxide solution with the handle and set in the separate container (FIG. 8 (III)). Since the hydrogen peroxide decomposition catalyst (54) is fixed to the holder, the disinfection process with hydrogen peroxide and the neutralization process proceed in a separate container, and the lens care is completed during storage. It is. In this example, the decomposition catalyst is fixed to the holder, but this fixing position may be anywhere as long as it is in contact with the hydrogen peroxide solution in another container. Further, the decomposition catalyst may be attached to the inner wall of another container. The handle may be further provided with a hole or a gas permeable film for releasing oxygen gas generated by hydrogen peroxide decomposition to the outside.

  The above example assumes that a solid catalyst such as platinum is used. However, a water-soluble enzyme such as catalase is tableted and charged, or after removing the hydrogen peroxide solution, a neutralization solution is used. It is also possible to use it.

  Although it is a holder of the above structures, manufacturing cost can be reduced significantly by making this into a single molded object. In particular, it is preferable to form the whole with a synthetic resin in order to make the connecting portion that can be bent into a so-called hinge. A general-purpose material such as polypropylene or polyethylene can be used as the resin used. In addition, it is possible to improve the identification by marking the left and right storage parts or changing the color of the resin during molding, but it is unlikely that the cover part will be placed at the front, and in that sense also the conventional lens holding Compared to tools, the risk of confusion between the left and right sides of the lens is reduced.

  Hereinafter, in order to clarify the present invention more specifically, the positional relationship as shown in FIG. 9 and the pop-up effect of the cover in the name of each part were verified. In addition, the storage part and cover part in FIG. 9 were each assumed to be circular, and the radius was set to 20 mm. This is because the size is sufficient to accommodate the lens.

  The effect was confirmed as follows. First, create a model of the shape shown in Fig. 9 with cardboard, and after folding it once on a horizontal desk, if you operate it with your fingertips so that the storage part is horizontal, check the opening of the cover and store it on the left and right sides. In the relationship between the virtual plane of the part and the virtual plane of the left and right cover parts, the angle formed by both is a double circle of 180 ° or less and 135 ° or more, a circle of less than 135 ° and 100 ° or more, and a triangle of less than 100 ° and 80 ° or more , Less than 80 ° is indicated by a cross mark. The results are shown in Table 1 below.

  As a result of the test, it seems that it is preferable that the distance between left and right and top and bottom is 0 to 5 mm and the opening angle is 10 ° or more and less than 90 ° from the viewpoint of ease of use in use.

  The present invention is a holder used for the distribution and storage of contact lenses, and in particular, the lens can be taken out in one operation as compared with a conventional configuration in which the lens is held in a basket. Easy to access. Further, the lens being stored can be stably held in the storage portion, and handling as a holder is simple. By integrally molding the holder of the present invention, the manufacturing cost can be reduced and a low-cost container can be provided.

1,51 Contact lens holder 2A, 2B, 12A, 12B, 22A, 22B, 42A, 42B Storage part 3C, 3D, 4C, 4D, 13C, 13D, 23C, 23D, 43C, 43D Cover part 5, 15, 25 , 45 First connecting portion 6, 16, 26, 46 Second connecting portion 7, 17, 27, 47 Third connecting portion 8, 18, 28, 48 Fourth connecting portion 5L, 6L, 7L, 8L Virtual straight line 30E, 30F, 34E, 34F, 36E, 36F, 38E, 38F Engagement part 39G, 39H, 49G, 49H Handle 10, 20, 40 Separate container

Claims (8)

A pair of left and right storage parts for individually storing contact lenses;
A pair of left and right cover parts covering each storage part;
A bendable series of connecting portions connecting the storage portions;
A bendable second connecting portion connecting each cover portion;
A bendable third connecting portion connecting the left storage portion and the left cover portion;
A foldable fourth connecting part connecting the right storage part and the right cover part;
A contact lens holder comprising:
In the open state of the holder, respectively extend the virtual straight line that bisects the first to fourth connecting portions in the opening direction,
When the virtual straight line is projected on the same plane,
The figure connecting the intersections of the virtual lines forms a trapezoid,
The imaginary straight line of the first connecting part is the lower base, the imaginary straight line of the second connecting part is the upper base,
Each hypothetical straight line of the third connecting part and the fourth connecting part is a hypotenuse,
A contact lens holder characterized by being connected so that the length of the lower base is longer than the length of the upper base. The contact lens holder according to claim 1, wherein the trapezoid formed by the virtual straight line is an isosceles trapezoid. 2. The contact lens is held in each storage portion by bending the first, third, and fourth connecting portions into valley folds and the second connecting portion into mountain folds, respectively. Or the contact lens holder of 2. The contact lens holder according to any one of claims 1 to 3, wherein each cover portion has at least one through hole. The contact lens holder according to claim 1, wherein at least one through hole is provided in one of the left and right storage portions. The contact lens holder according to any one of claims 1 to 5, wherein a handle is provided on one of the left and right storage parts, and a fixing part for another part is provided on the other. The contact lens holder according to claim 1, wherein a handle is provided in each storage portion. The contact lens holder according to claim 1, comprising a single molded body.

Images