The present invention relates to a bottle cap, and more particularly, to a bottle cap that displays an opened state and cannot contain contents again once it is opened.
Generally, there are different kinds of products that contain contents such as liquid. The most general product is completed by sealing a bottle with a bottle cap after containing contents in the bottle. The bottle is of glass, plastic and metal.
Such a bottle product includes a bottle and a bottle cap. There are different kinds of bottle caps. That is, there is a simple bottle cap that can be opened using an opener. There is another bottle cap that can be opened by turning the cap through a screw. In this case, the screw is formed on an outer surface of a bottle nozzle and is engaged with a screw formed in the bottle.
The products based on the above bottle caps do not have any special problems in case that they contain cheap contents. However, in case that they contain expensive contents, problems are likely to occur. That is, the expensive contents may be exchanged with the cheap contents.
To prevent such a problem, various methods for sealing a bottle cap are being contrived but there is no method for solving the problem at present.
Accordingly, the present invention is directed to a bottle cap that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a bottle cap that displays an opened state and cannot contain contents again once it is opened.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, a bottle cap includes a cap having a screw formed on its inner surface to be engaged with a screw formed on an outer surface of a nozzle of a bottle, a reverse moving means connected to the cap and ascending in a direction opposite to a descending direction of the cap as the cap is rotated downwardly, a rod shaped nut having a screw engaged with the reverse moving means and moving up and down in a screw direction without rotation, and a display installed in the lower portion of the nut, displaying an opened state of the cap by hanging a part of the cap in the nozzle as the cap is moved downwardly by being pushed by the nut if the cap is opened.
The reverse moving means is a reverse screw rod fixed to the center of the cap, having a reverse screw positioned opposite to the screw of the cap at a pitch larger than that of the cap.
The cap has a hole into which the upper portion of the reverse screw rod is fitted.
The display includes a base having a slit with a protrusion formed at both ends, two facing hanging members having one sides fitted into the slit of the base and hung in the protrusion with splitting outwardly if it is removed from the nozzle by elasticity, and an elastic means formed between the hanging members, providing elasticity.
The base includes passages extended to the center of the nut so that contents in the bottle move.
The passages have a diameter gradually reduced toward the lower portion and are provided with a ball.
The passages include a protrusion at one side to move the ball to the nut at a certain position.
The bottle cap further includes a bearing formed between the display and the nut so as not to rotate the display with rotation of the reverse moving means.
The bearing includes a passage that moves contents in the bottle.
The passage is formed to pass through lower and upper portions and is leaned with respect to a rotary shaft of the cap.
The bottle cap further includes a guide fixed into the nozzle, guiding up and down movement of the nut so as not to avoid rotation of the nut.
The guide includes a plurality of air vents passing through lower and upper portions.
The bottle cap further includes a tension spring formed between the guide and the display to avoid rapid descending movement of the display.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
In the drawings:
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
A cap shaped bearing 6 is provided below the lower portion of the nut 4 and the reverse screw rod 5. The bearing 6 includes grooves 6a and 6b. The groove 6a is formed at the center on the bearing 6. The lower portion of the reverse screw rod 5 is inserted into the groove 6a. The protrusion 3a of the guide member 3 is fitted into the groove 6b, so that the bearing is not rotated in the same manner as the nut 4. Therefore, if the nut 4 moves downwardly, the bearing moves downwardly by being pushed by the nut 4 in a state that it is not rotated. As shown in
The operation of the aforementioned bottle cap according to the present invention will now be described.
If the bottle cap 2 is rotated to open the bottle cap 2, as shown in
If the upper portions of the hanging members 8 pass through the lower portion of the nozzle 1a, as shown in
If the bottle cap 2 is removed, a user cannot put contents in the bottle because the ball 10 cuts off the passages 7c of the base 7. In this state, if the user leans the bottle 1, as shown in
As aforementioned, the bottle cap according to the present invention has the following advantages.
Since the hanging members of the display are hung in the lower portion of the nozzle once the bottle cap is opened, it is possible to recognize the fact that the bottle cap has been opened and to fail to insert the contents into the bottle.
While the present invention has been described and illustrated herein with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention that come within the scope of the appended claims and their equivalents.
Number | Date | Country | Kind |
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10-2002-0084138 | Dec 2002 | KR | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/KR03/02805 | 12/23/2003 | WO | 7/27/2005 |