JPH0739414A - Case for contact lens - Google Patents

Abstract

PURPOSE:To provide a case for contact lens having a good appearance as the whole, reclothing property, and high utility value. CONSTITUTION:In a case having a hinge cap molded by injection with a heat resisting synthetic resin, a housing part for lens having a protruding periphery 2 on the inside is provided on the body side, an angular protruding part 4 is circumferentially provided on the protruding periphery 2, and a packing 11 being in contact with the angular protruding part 4 is fitted to the inside of a cap (c) screwing to the protruding periphery 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case of a contact lens, and more particularly to a case having recloseability.

[0002]

2. Description of the Related Art As a case of a contact lens which has been used so far, a cap having two holding legs having two holding legs is screwed to a tubular case partitioned from the center. It is configured to do. Further, in the case of a disposable contact lens, the container is composed of a vacuum molded product and an aluminum sheet.

[0003]

In the conventional device as described above, since the case body has a simple tray shape, it is normally used even if it cannot be reused as a case. If it was used once, that is, it was opened and the lens was taken out and used, then the case was discarded, and the container was not very well-formed. The present invention was created in view of the above points, and the object thereof is to provide a product that is well-formed as a whole and that has reusability and is useful as a recloseable product. It is in.

[0004]

In order to achieve the above object, in the present invention, a housing portion for a lens is provided on the body side of a case having a hinge lid injection-molded with a synthetic resin, and The problem is solved by screwing a cap onto this. That is,
The present invention is a case having a hinge lid injection-molded from a heat-resistant synthetic resin, on the body side thereof, a housing portion for a lens having a projecting peripheral edge is provided, and a mountain shape is provided on the projecting peripheral edge. In addition to surrounding the ridge, the cap that is screwed or fitted to the protruding rim has a structure in which a packing that abuts the mountain-shaped ridge on the protruding rim is fitted inside the cap. .

[0005]

Embodiments of the present invention will be described with reference to the drawings.
The case (A) of the contact lens of the present invention is made by integrally injection-molding a heat-resistant synthetic resin such as polypropylene or polycarbonate, and the body side (a) and the lid side (b) are in the central part (1). It is hinged and has a flat shape as a whole. On the body side (a), there is a circular projecting peripheral edge (2) in the center of the inside thereof, and this inside is where the lens accommodating portion (3) is formed. A mountain-shaped ridge (4) is formed on the upper surface of the protruding peripheral edge (2), and a thread (5) is formed on the outer peripheral surface. In the figure, (6) is a lower protruding outer peripheral edge on the body side (a), and (7) is a lower protruding edge on the outer periphery of the housing portion (3) of the lens. Further, (8) is a locking piece.

On the lid side (b), when this is bent toward the body side (a) from the central portion (1) and covered on the body side (a), the locking piece (8) on the body side (a) is provided. ) Is provided for engaging with the locking piece (9). The cap (c) screwed to the thread (5) of the protruding peripheral edge (2) of the lens housing portion (3) on the body side (a) is injection-molded with the same synthetic resin as the case (A). A packing (11) made of silicon rubber or the like is fitted in the concave portion (10) of the inner peripheral edge portion, and the cap (c) is screwed to the protruding peripheral edge (2) of the lens housing portion (3). At this time, the packing (11) is in close contact with the mountain-shaped protrusion (4) on the protruding peripheral edge (2) to maintain liquid tightness. There is a preservative solution in the lens accommodating portion (3) for accommodating and storing the contact lens (B). To use the contact lens (B), open the lid side (b) of the case (A) from the body side (a), unscrew the cap (c) of the lens storage part (3), and remove the preservative solution. Take it out. When the lens (c) is stored again, the lens (c) is submerged in the storage solution of the lens storage part (3), the cap (c) is screwed, and the lid side (b) is covered on the body side (a). .

[0007]

The contact lens case of the present invention is
Since the body side and the lid side are integrally injection-molded, the case is easy to manufacture, and in particular, the projection-shaped peripheral edge of the lens storage portion has a mountain-shaped protrusion formed on the top thereof. With the side of the cap screwed to the protruding peripheral edge, it is possible to always maintain a liquid-tight state with wide packing. In addition, the mountain-shaped ridge at the top is used to tighten the cap,
It is possible to reduce the torque at the time of tightening and opening by making the contact between the packing and the main body container a line contact when opening. In addition, the ease of tightening and opening the cap can be adjusted by changing the shape of the protrusion. Contrary to this, since a ridge is formed on the cap side, this ridge is
In order to keep the liquid tight and the narrow projecting edge of the lens housing, it is necessary to always be careful in forming the ridge, as compared with the case where the projection is provided on the projecting edge. And the case of the present invention is
The overall shape is flat and the appearance is good and easy to handle.

[Brief description of drawings]

FIG. 1 is a plan view in which a cap of a contact lens of the present invention is opened and a cap is unthreaded.

FIG. 2 is a sectional view of the same.

FIG. 3 is a perspective view in which a part is cut away in a state where a cap is screwed.

FIG. 4 is a partial enlarged cross-sectional view.

[Explanation of symbols]

 A Contact lens case B Contact lens a Body side b Lid side c Cap 1 Central part 2 Projected peripheral edge 3 Lens storage part 4 Projection line 5 Screw line 6 Projected outer peripheral edge 7 Lower projecting edge 8 Locking piece 9 Locking piece 10 Recess 11 Packing

Claims (1)

[Claims] 1. A case having a hinge lid injection-molded from a heat-resistant synthetic resin, on the body side thereof, a lens accommodating portion having a projecting peripheral edge is provided, and a mountain is provided on the projecting peripheral edge. It is characterized in that a cap which is provided around the projecting peripheral edge and is screwed or fitted to the projecting peripheral edge is fitted with a packing which contacts the mountain-shaped projecting strip on the projecting peripheral edge. Contact lens case.