Patent Application
20180127163
The present invention relates to a container stopper, and more particularly, to a container stopper having a multi-locking structure that is capable of preventing an upper stopper part coupled to a lower stopper part from easily opening from the lower stopper part due to shocks generated during the distribution process or storage of a product or due to other external forces.
Generally, liquids used for cooking in a kitchen, such as a variety of oils and sources, and the like, are stored in containers. An openable/closable stopper is coupled to an inlet of the liquid container. Conventional container stoppers have been disclosed in Korean Utility Model Registration Nos. 20-0445206 and 20-0425667.
Referring to
In this case, a handle 5a is disposed on one side of the upper stopper part 5 to allow the opening and closing manipulation of the upper stopper part 5 to be easily carried out. Further, a sealing protrusion portion 6 is formed protrudingly from one surface of the upper stopper part 5 in such a manner as to be coupled to the inner circumferential surface of the opening 3b of the lower stopper part 3 to seal the inlet and outlet hole 3a of the lower stopper part 3. Furthermore, a locking projection 6a is formed protrudingly from the outer circumference surface of the sealing protrusion portion 6 in such a manner as to be locked correspondingly onto a stepped projection 3c formed on the outside edge of the opening 3b of the lower stopper part 3.
However, the conventional container stopper 1 has one coupling structure between the stepped projection 3c and the locking projection 6a so as to maintain the coupled state of the upper stopper part 5, and in this case, most of the locking portion of the upper stopper part 5 is located on the outside edge of the lower stopper part 3. In more detail, the shock applied from the outside is transmitted just to the locking portion of the upper stopper part 5.
Accordingly, undesirably, the upper stopper part 5 may open easily due to the shock generated during the distribution process or storage of the product or due to an external force not applied thereto such as incomplete capping, contamination caused by the content (oil, etc.), and the like.
In addition, the fixed force of the upper stopper part 5 to the lower stopper part 3 may become weakened due to the abrasion of the locking projection 6a caused while the upper stopper part 5 is being repeatedly open and closed to use the content contained in the container.
Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a container stopper having a multi-locking structure that is capable of allowing the multi-locking structure to be applied to the inner circumferential surface of an opening of a lower stopper part and to the outer circumferential surface of a sealing protrusion portion of an upper stopper part coupled to the opening of the lower stopper part, thereby preventing the upper stopper part from opening easily due to shocks generated during the distribution process or storage of a product or due to other external forces.
To accomplish the above-mentioned object, according to the present invention, there is provided a container stopper having a multi-locking structure, including: a lower stopper part coupled to an inlet of a container; an upper stopper part having a sealing protrusion portion formed on one surface thereto in such a manner as to selectively open and close an opening formed inside the lower stopper part; and at least two locking parts formed spaced apart from each other on the inner circumferential surface of the opening of the lower stopper part and on the outer circumferential surface of the sealing protrusion portion of the upper stopper part 120 coupled to the inner circumferential surface of the opening.
According to the present invention, desirably, the locking parts includes: a first locking point formed on the circumference of the end portion of the sealing protrusion portion; and a second locking point formed on the outside circumference edge of the opening.
According to the present invention, desirably, the first locking point has a locking coupling structure in which a stepped projection is formed on the opening and a locking projection is formed on the sealing protrusion portion in such a manner as to be locked correspondingly onto the stepped projection.
According to the present invention, desirably, the locking projection includes: a slant surface slidingly coming into contact with one side of the stepped projection upon the insertion of the sealing protrusion portion into the opening; and a locking surface lockingly coupled to the other side of the stepped projection at the same time when the slant surface slides.
According to the present invention, desirably, the second locking point has a structure in which a protrusion protrudes from the sealing protrusion portion and a coupling groove is formed on the opening in such a manner as to insert the protrusion thereinto.
According to the present invention, desirably, the protrusion and the coupling groove have any one of a semicircular section and a polygonal section such as triangular, square, and trapezoidal sections.
According to the present invention, the container stopper having a multi-locking structure according to the present invention is configured wherein the upper stopper part coupled to the opening of the lower stopper part has a main locking position located inclinedly to the circumference of the front end of the sealing protrusion portion, thereby preventing the upper stopper part from easily open due to the application of external shocks thereto, and further, the locking parts are located in such a manner as to have at least two locking points formed on the outer circumferential surface of the sealing protrusion portion, thereby improving the coupling strength of the upper stopper part.
Hereinafter, an explanation on the configuration and operation of a container stopper having a multi-locking structure according to the present invention will be in detail given with reference to the attached drawing.
In order to facilitate the general understanding of the present invention in describing the present invention, through the accompanying drawings, the same reference numerals will be used to describe the same components and an overlapped description of the same components will be omitted.
Referring to
Now, the configuration of the container stopper 100 having a multi-locking structure according to the present invention will be in detail explained.
First, the locking parts 130 serve to prevent the upper stopper part 120 from opening due to shocks generated during the distribution process or storage of the liquid container product or due to external forces not applied thereto.
Referring in detail to
According to the present invention, for example, the locking parts 130 has the two locking points I and II, but only if the rigid coupling state of the upper stopper part 120 can be maintained, of course, the locking parts 130 may have two or more locking points, that is, three or four locking points.
Referring to
In this case, the locking projection 133 includes a slant surface 133a slidingly coming into contact with one side of the stepped projection 131 upon the insertion of the sealing protrusion portion 121 into the opening 111 and a locking surface 133b lockingly coupled to the other side of the stepped projection 131 at the same time when the slant surface 133a slides.
Further, the second locking point II has a structure in which a protrusion 135 is formed protrudingly from the outer circumferential surface of the sealing protrusion portion 121 and a coupling groove 137 is formed on the inner circumferential surface of the opening 111 in such a manner as to insert the protrusion 135 thereinto.
In this case, the protrusion 135 and the coupling groove 137 have a semicircular section, but they may have any one of polygonal sections such as triangular, square, and trapezoidal sections. According to the present invention, for example, the protrusion 135 and the coupling groove 137 having the semicircular sectional shape will be discussed.
In this case, the coupling structure between the locking projection 133 and the stepped projection 131 and the coupling structure between the protrusion 135 and the coupling groove 137, which have different locking characteristics from each other, are combinedly applied to the container stopper 100 according to the present invention, so that when compared with the case wherein the plurality of locking parts 130 has only the coupling structure between the locking projection 133 and the stepped projection 131, it is possible to maintain a more rigid coupling state.
In more detail, the coupling structure between the locking projection 133 and the stepped projection 131 can achieve easy coupling, but it may have a relatively smaller coupling force than the coupling structure between the protrusion 135 and the coupling groove 137. Contrarily, the coupling structure between the protrusion 135 and the coupling groove 137 can have a greater coupling force than the coupling structure between the locking projection 133 and the stepped projection 131, but it may have a relatively low coupling convenience in inducing gentle coupling.
Accordingly, the locking parts 130 do not have the two coupling structures having the same as each other, and as mentioned above, that is, they adopt the different coupling structures from each other, thereby desirably improving both of the coupling force and the coupling convenience.
According to the present invention, for example, the stepped projection 131 and the locking projection 133 are formed on the first locking point I, and the protrusion 135 and the coupling groove 137 are on the second locking point II, which is of course not limited thereto. That is, the protrusion 135 and the coupling groove 137 may be formed on the first locking point I, and the stepped projection 131 and the locking projection 133 may be on the second locking point II.
A referent numeral ‘123’ not explained yet denotes a hinge band, and a reference numeral ‘125’ denotes a handle.
As described above, the container stopper 100 having a multi-locking structure according to the present invention is configured wherein the upper stopper part 120 coupled openably and closably to the opening 111 of the lower stopper part 110 has the main locking position located more inclinedly on the circumference of the end portion of the sealing protrusion portion 121 (that is, on the circumference of the front end of the insertion direction of the sealing protrusion portion 121)) when compared with the conventional container stopper, so that even if an external shock is applied to the upper stopper part 120, the upper stopper part 120 cannot open easily.
Particularly, the locking parts 130 are located in such a manner as to have at least two locking points formed on the outer circumferential surface of the sealing protrusion portion 121 and on the inner circumferential surface of the opening 111, and further, the shapes and structures of the locking parts 130 are different from each other to improve the coupling strength of the upper stopper part 120.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20-2015-0000001 | Jan 2015 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2015/014430 | 12/29/2015 | WO | 00 |
