JP2016508770A - Cosmetic container cap - Google Patents

Abstract

[PROBLEMS] To prevent damage and damage to a seal member separately press-fitted into a cap body, even when the cap body is opened and closed with respect to an inlet of a cosmetic container, and the cap body can be opened and closed smoothly. In addition, a cosmetic container cap is provided that always provides a stable sealing force. A cosmetic container cap is provided. The cap includes a cap body and a seal member. The cap body is made of a hard material, and has an upper wall, a side wall extending downward from a peripheral edge of the upper wall, a screw portion formed on an inner peripheral surface of the side wall, and an inner boundary surface between the upper wall and the side wall. It includes a coupling space provided. The seal member is press-fitted into the coupling space of the cap body, and provides or releases a sealing force to the inlet when the cap body is opened and closed with a screwing method with respect to the inlet of the cosmetic container. The seal member includes a hard circular support plate and a seal portion integrally formed on the circular support plate by insert molding. [Selection] Figure 2

Description

  The present invention relates to a cap that seals an inlet of a cosmetic container that stores cream-type cosmetics, and in particular, with a simple seal structure, the cap body seals an inlet of a cosmetic container. The present invention relates to a cosmetic container cap that is independently opened and closed by a screwing method to provide or release a stable sealing force.

  As is well known, as a structure that seals the inlet of cosmetic containers that store cream type cosmetics, a compressed pearlite material packing is integrally bonded to the inner bottom surface of the cap body, and at the same time, the upper surface of the inlet is made of plastic material. A configuration in which the auxiliary cap is separately covered is used.

  However, in the case of a sealing method using a pearlite material packing, the pearlite material packing is pressed against the upper surface of the cosmetic container inlet when the cap body is screwed together, so it is forced to rotate during the process. It is difficult to avoid the problem that the pressing surface of the packing in contact with the upper surface of the inlet is damaged or damaged, and there is a limit in providing a stable sealing force because it leaves a mark of sealing when used for a long time. In addition, due to the characteristics of the packing of the pearlite material, it is difficult to effectively prevent moisture evaporation and the like of cosmetics because air can be vented. In addition, when using cosmetics, there is an inconvenience in use in which the auxiliary cap must be opened and closed.

  In particular, when using pearlite packing, since the packing is integrally bonded to the cap, the upper surface of the inlet is not kept horizontal in the process of forming a cosmetic container made of glass. In the case of being inclined, it is difficult to positively cope with the inclination and seal. For this reason, the improvement of the cap which solves the said problem is calculated | required.

  In view of these points, as disclosed in Korean Patent No. 1268157, a structure in which a packing made of an elastic material is inserted into the cap or molded integrally by ultrasonic waves to seal the inlet of the cosmetic container. Has been proposed. Although various other seal structures have been proposed, there are still limits to providing a stable sealing force while preventing damage to the packing.

Korean Registered Patent No. 10-126157

  The present invention has been made in order to solve the conventional various problems as described above, and the present invention can be applied even if the cap body is opened and closed by a screwing method with respect to the inlet of the cosmetic container. In addition, a cosmetic container cap is provided that prevents the damage and damage of the separately press-fitted seal member, does not cause rotational interference, smoothly opens and closes the cap body, and always provides a stable sealing force.

  In one aspect of the present invention, the present invention is a cap that is opened and closed by a screwing method to seal the upper surface of the inlet of the cosmetic container, and extends downward from the upper wall and the periphery of the upper wall. A hard cap body including a formed side wall, a screw portion formed on an inner peripheral surface of the side wall, a coupling space provided on an inner boundary surface of the upper wall and the side wall, and a coupling space of the cap body. A sealing member that press-fits and provides or releases a sealing force to the cosmetic container inlet when the cap body is opened and closed by a screwing method with respect to the cosmetic container inlet; A cosmetic container cap comprising: a circular support plate; and a seal part that is integrally insert-molded on one surface of the circular support plate and elastically contacts an upper surface of an inlet of the cosmetic container.

  The seal portion of the seal member is further formed with a close contact groove portion for closely contacting with the protrusion formed on the upper surface of the inlet of the cosmetic container so as to surround the protrusion, and both sides of the close contact groove portion. The seal wing can be integrally formed.

  The outer diameter (D2) of the seal part insert-molded on the circular support plate of the seal member is formed smaller than the outer diameter (D1) of the circular support plate, and the diameter of the engagement protrusion for forming the coupling space By being formed to be the same as or smaller than (d1), the stepped portion of the circular support plate is configured to be locked to the engagement protrusion when the seal member is coupled into the coupling space of the cap body. it can.

  An annular protrusion may be further formed on the inner peripheral surface of the upper wall of the cap body to minimize the contact frictional force of the seal member against the circular support plate when the cap body is opened and closed.

  The annular protrusion formed on the cap body has a vertical axis (P) with respect to the inlet so that the sealing portion of the sealing member directly presses the upper surface of the inlet of the cosmetic container when the cap body is closed. ) Can be placed on top.

  The upper edge of the peripheral edge of the circular support plate of the seal member is cut to form an inclined guide surface, so that the coupling is facilitated when the seal member is forced into the coupling space of the cap body. Can be done.

  According to the present invention, since the seal member is separately press-fitted into the internal coupling space of the cap body, only the cap body is rotated when the cap body is screwed open / closed with respect to the inlet of the cosmetic container. Therefore, even when the cosmetic container is forcibly brought into contact with the inlet of the cosmetic container, it is possible to prevent damage and damage of the sealing member and always provide a stable sealing force.

  In addition, since the close contact groove portion formed in the seal portion of the seal member is closely contacted and supported so that the injection port of the cosmetic container is surrounded, it is possible to provide more stable sealing ability.

  In addition, when the cap body is opened and closed with respect to the inlet of the cosmetic container, the circular support plate of the seal member is made of a hard material, and an annular ridge is formed on the inner peripheral surface of the upper wall of the cap body. Thus, there is an advantage that the opening and closing operation of the cap body becomes smoother by minimizing the frictional contact surface and preventing rotational interference between them.

  In addition, since the annular protrusion is formed on the coaxial line with the inlet of the cosmetic container, the sealing member is pressed vertically on the coaxial line during the closing operation of the cap body, so that a stronger and more stable sealing force can be obtained. It becomes possible to provide.

  In addition, the inclined guide surface provided on the seal member provides an effect that the forced coupling operation of the seal member to the coupling space of the cap body becomes more convenient.

It is a disassembled perspective view of the container cap and cosmetics container by this invention. FIG. 3 is a vertical sectional view of a cap according to the present invention. FIG. 3 is a vertical sectional view before the cap according to the invention is joined to the cosmetic container. FIG. 3 is an enlarged view of “A” portion of FIG. 2. FIG. 4 is a vertical sectional view of a state where the cap according to the present invention is coupled to a cosmetic container. FIG. 6 is an enlarged view of a “B” portion of FIG. 5. It is an expanded sectional view before the sealing member by this invention is pressed by the protrusion of a cosmetics container. It is an expanded sectional view after the sealing member by this invention is pressed by the protrusion of the cosmetic container.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  1 to 3, a cosmetic container cap 10 according to the present invention includes a cap body 20 and a seal member 30. The cap body 20 is manufactured from a hard material, and includes an upper wall 21, a side wall 22 extending downward from a peripheral edge of the upper wall, a screw portion 23 formed on an inner peripheral surface of the side wall, and the side wall. And an engagement protrusion 25 for providing the coupling space 24 on the inner peripheral surface of the.

  The seal member 30 is movably coupled to the coupling space of the cap body, and when the cap body is opened and closed with a screwing method with respect to the inlet of the cosmetic container, the seal member 30 is connected to the inlet 2 of the cosmetic container 1. Provides or releases sealing force.

  The seal member 30 includes a circular support plate 31 formed from a hard material, and a seal portion 32 that is integrally formed on one surface of the circular support plate and elastically contacts the upper surface 3 of the inlet of the cosmetic container. It is made up of.

  The cap body 20 is preferably formed mainly from a hard synthetic resin material, such as an ABS material, but may be manufactured from other alternative materials such as a metal material.

  The hard circular support plate 31 constituting the seal member 30 is also preferably formed from a hard synthetic resin material, for example, a material such as ABS, PP, or POM, but is also formed from an alternative material similar to the above. It doesn't matter.

  Moreover, in order to increase the sealing force with respect to the upper surface 3 of the injection port 2 of the cosmetic container 1, it is preferable to use the synthetic rubber material with favorable elastic restoring force for the sealing part 32 which comprises the sealing member 30. FIG. Examples thereof include NBR (acrylonitrile rubber), elastomer (Elastomer), and silicone rubber that are widely used in the cosmetic container field.

  The seal member 30 coupled to the coupling space 24 of the cap body 20 is preferably press-fitted within a range that does not cause rotational interference with the cap body.

  Here, the outer diameter (D1) of the circular support plate 31 of the seal member 30 is slightly larger than the inner diameter (D1) of the engagement protrusion 25 for forming the coupling space 24 (maximum 0.1 mm). The cap body 20 and the circular support plate 31 are both made of a synthetic resin material having elasticity, and the thickness (t) of the circular support plate 31 is 0.1 mm or less. Therefore, by forcibly pushing the seal member 30 into the coupling space 24, the circular support plate can be elastically mounted in the coupling space beyond the engagement protrusion.

  In the case of the present invention, since the seal member 30 press-fitted into the coupling space 24 is elastically coupled in a state of being locked to the engagement protrusion 25, it is unexpectedly removed from the cap body 20 after being coupled once. Since it does not come off, there is no risk of loss during use.

  In the accompanying drawings, a portion indicated by reference numeral 4 indicates a screw portion formed on the outer peripheral surface of the injection port of the cosmetic container, and this is formed on the inner peripheral surface of the side wall 22 when the cap body 20 is coupled. It is a part screwed together with the formed screw part 23.

  According to the cosmetic container cap 10 of the present invention configured as described above, the seal member 30 including the hard circular support plate 31 and the elastic material seal portion 32 is press-fitted into the coupling space 24 of the cap body 20, and In the coupling space, the seal member is coupled in a state in which the hard circular support plate 31 is in contact with the inner peripheral surface of the upper wall 21 of the hard cap body 20, so even if press-fitted, it is caused by frictional contact. No rotational interference is caused.

  Accordingly, in order to seal the inlet 2 of the cosmetic container 1, if the cap body 20 is positioned at the inlet 2 and then rotated, the sealing member 30 is made of an elastic material seal as shown in FIG. The portion 32 seals while forcibly pressing the upper surface 3 of the inlet 2. Further, when the cap body 20 is rotated, the seal member 30 does not rotate together. That is, the seal portion 32 of the seal member 30 is in close contact with the upper surface of the injection port, and slip is prevented by the elastic pressure of the seal portion. At the same time, sliding friction is generated between the hard circular support plate 31 and the bottom surface of the upper wall 21 of the cap body 20 formed from a hard material, so that only the cap body 20 is rotated.

  For this reason, the seal member 30 does not rotate together during the rotation operation of the cap body 20, but exerts pressure only in the vertical direction by the tightening force of the cap body so that the upper surface 3 of the inlet 2 of the cosmetic container 1 is covered. Will be sealed. For this reason, in order to provide or release the sealing force with respect to the upper surface of the injection port of the cosmetic container, even if the cap body is opened and closed by screwing with respect to the injection port, an elastic material that is in direct contact with the upper surface of the injection port No damage or damage due to rotational friction occurs at all in the seal portion 32, and a stable sealing action is always possible.

  On the other hand, according to the present invention, as shown in FIG. 4, the seal portion 32 of the seal member 30 corresponds to the protrusion 5 formed on the upper surface 3 of the inlet 2 of the cosmetic container 1, and A close contact groove 33 for sealing in a surrounding form is further formed. It is preferable that seal wings 34 are formed integrally on both sides extending from the contact groove 33 so as to become thinner toward the tip.

  As described above, the sealing groove 32 is further formed on the seal portion 32, and at the same time, the sealing wings 34 are further provided on both sides thereof, thereby further enhancing the sealing force for the upper surface 3 of the inlet 2 of the cosmetic container 1. It becomes possible.

  That is, as shown in FIGS. 7 a and 7 b, when the contact groove 33 contacts the hemispherical ridge 5, the central portion of the ridge 5 is forcibly pushed up, and the central portion is lifted and compressed. Thus, the seal wings 34 arranged on both sides are simultaneously in close contact with both sides of the ridge while being pulled inward at the same time. As a result, the protrusion 5 is tightly supported in a state where both sides including the central portion are entirely covered by the seal blades 34, so that a more stable sealing force can be achieved as compared to simply sealing with a plate-like seal portion. Can be provided.

  Further, as shown in FIG. 2, the outer diameter (D2) of the seal portion 32 insert-molded on the circular support plate 31 of the seal member 30 is formed smaller than the outer diameter (D1) of the circular support plate, and When the sealing member 30 is coupled into the coupling space 24 of the cap body 20 by being formed to be equal to or smaller than the diameter (D1) of the engaging protrusion 25 for forming the coupling space 24, the circular support plate 31 It is preferable that the step portion 31 a is configured to be locked to the engagement protrusion 25.

  By configuring as described above, as shown in FIG. 6, when the seal member 30 is coupled to the coupling space 24, the step portion 31 a of the circular support plate 31 is locked to the engagement protrusion 25. Thus, when the cap body 20 is rotated, the contact friction can be further reduced, and the rotation operation can be guided smoothly. By not receiving any interference at all, the pressing operation becomes smooth.

  In addition, according to the present invention, as shown in FIG. 4, the inner peripheral surface of the upper wall 21 of the cap body 20 has contact friction with the circular support plate 31 of the seal member 30 when the cap body is opened and closed. Preferably, an annular ridge 26 is further formed to minimize the force.

  According to the present invention, as shown in FIGS. 5 and 6, the annular protrusion 26 formed on the cap body 20 has the sealing portion 32 of the sealing member 30 in the cosmetic container, particularly when the cap body is closed. The upper surface 3 of one injection port 2 is preferably disposed on a vertical axis P with respect to the injection port so as to directly press the upper surface 3.

  In this way, by further forming the annular protrusion 26 on the cap body 20 and arranging it on the vertical axis P, the sealing force is exerted by the accurate pressing of the seal portion 32 against the upper surface 3 of the inlet 2 of the cosmetic container 1. This can be further enhanced.

  Further, as shown in FIG. 4, by forming the inclined guide surface 35 by cutting the peripheral upper corner of the circular support plate 31 of the seal member 30, the seal member is attached to the coupling space 24 of the cap body 20. When forcibly pushing in, it is preferable that the inclined guide surface 35 be configured to facilitate the coupling action.

  As described above, according to the cosmetic container cap 10 according to the present invention, the seal member 30 press-fitted in the coupling space 24 of the cap body 20 so as not to cause rotational interference while having a very simple structure of the seal structure. With this configuration, not only can the sealing force of the cosmetic container 1 with respect to the inlet 2 be further increased, but also a stable sealing force and at the same time preventing damage and damage to the sealing member 30, the reliability of the product It becomes possible to remarkably improve the property.

DESCRIPTION OF SYMBOLS 1 Cosmetic container 2 Inlet 3 Upper surface 5 Projection 10 Cosmetic container cap 20 Cap main body 21 Upper wall 22 Side wall 24 Coupling space 25 Engagement projection 26 Annular projection 30 Seal member 31 Circular support plate 31a Step part 32 Seal part 33 Contact | adherence Groove 34 Seal feather

Claims (6)

A cap that is opened and closed by a screwing method to seal the upper surface of the inlet of the cosmetic container,
An upper wall; a side wall extending downward from a peripheral edge of the upper wall; a screw portion formed on an inner peripheral surface of the side wall; and a coupling space provided on an inner boundary surface of the upper wall and the side wall. Hard cap body,
A seal member that is press-fitted into the coupling space of the cap body and provides or releases a sealing force for the cosmetic container inlet when the cap body is opened and closed by a screwing method with respect to the cosmetic container inlet; ,
The seal member includes a hard circular support plate and a seal portion that is integrally insert-molded on one surface of the circular support plate and elastically contacts the upper surface of the injection port of the cosmetic container. Container cap.   The seal portion of the seal member is further formed with a close contact groove portion for closely contacting with the protrusion formed on the upper surface of the inlet of the cosmetic container so as to surround the protrusion, and both sides of the close contact groove portion. The cosmetic container cap according to claim 1, wherein seal wings are formed integrally with each other.   The outer diameter (D2) of the seal part insert-molded on the circular support plate of the seal member is formed smaller than the outer diameter (D1) of the circular support plate, and the diameter of the engagement protrusion for forming the coupling space By being formed to be the same as or smaller than (d1), the stepped portion of the circular support plate is configured to be locked to the engagement protrusion when the seal member is coupled into the coupling space of the cap body. The cosmetic container cap according to claim 1, characterized in that   An annular protrusion is further formed on the inner peripheral surface of the upper wall of the cap body to minimize the contact frictional force of the seal member against the circular support plate when the cap body is opened and closed. The cosmetic container cap according to claim 1.   The annular protrusion formed on the cap body has a vertical axis P with respect to the inlet so that the seal portion of the sealing member directly presses the upper surface of the inlet of the cosmetic container when the cap body is closed. The cosmetic container cap according to claim 4, wherein the cosmetic container cap is disposed on the container.   The upper edge of the peripheral edge of the circular support plate of the seal member is cut to form an inclined guide surface, so that the coupling is facilitated when the seal member is forced into the coupling space of the cap body. The cosmetic container cap according to claim 1, wherein:

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