JP4260043B2 - Cosmetic container - Google Patents

Description

  The present invention relates to a cosmetic container for storing a liquid cosmetic product.

  As a cosmetic container for storing contents such as liquid cosmetics, a pump-type discharge container disclosed in Patent Document 1 is known. The discharge container disclosed in Patent Document 1 discharges contents by a pump action. When discharging the contents, the contents in the container are discharged from the discharge nozzle through a valve mechanism such as a check ball, a cylinder, and a pumping piston having a smaller diameter than the cylinder. In such a pump-type discharge container, when the viscosity of the contents is low, the force for operating the pump is small, and the discharge amount can be easily adjusted. Further, when the contents are discharged, the free piston provided slidably inside the container descends, so that air does not enter the container and the contents do not touch the air.

  However, in such a pump-type discharge container, when the viscosity of the contents becomes high, a large force is required to operate the pump, and excessive contents are necessary to operate the pump with a large force. There was a risk of discharge. Thus, the conventional pump-type container is not suitable for highly viscous contents, and the adjustment of the discharge amount is not easy.

On the other hand, a tube-type container used for storing toothpaste and the like is widely known as a container for discharging a highly viscous content. In such a tube-type container, the contents crush the tube itself and push out the contents from the discharge port provided at the tip, so that the contents can be easily discharged even if the contents are highly viscous. The discharge amount can be easily adjusted. However, when such a tube-type container is kept in a state in which the cap is opened, the portion crushed by the elasticity of the tube itself returns to the original state, and at that time, air is sucked in from the discharge port and the air enters the container. May enter and the contents may touch the air.
JP-A-5-319466

  The present invention aims to improve a container for cosmetics, and more specifically, in order to eliminate the inconvenience, the discharge amount can be easily adjusted even in the case of high-viscosity liquid cosmetics, and air enters inside. The object is to provide a container without any.

In order to achieve the above object, the cosmetic container of the present invention has an outer tube that has a discharge port at the front end portion, the rear end portion is opened and the liquid cosmetic product is accommodated therein, and a gasket that engages the front end portion. A plunger that is inserted into the outer cylinder from the rear and a lid member that is openably and closably attached to the discharge port, and the plunger has a substantially cylindrical shape with a protruding portion provided at a tip thereof. Is formed in a substantially cylindrical shape provided with an engagement hole opened toward the rear, and a shallow engagement groove for engaging the large diameter portion of the protruding portion of the plunger at the tip of the engagement hole Is provided and is engaged with the gasket so that the large-diameter portion of the projecting portion is detached from the engagement groove and separated from the gasket when pulled backward with respect to the outer cylinder. Features.

  According to the cosmetic container of the present invention, when the plunger is pushed forward with the lid member opened, the liquid cosmetic housed in the outer cylinder is discharged from the discharge port. As described above, in the cosmetic container of the present invention, the cosmetic is pushed out by pushing the plunger, so that the cosmetic is discharged without using a valve mechanism or a narrow passage like the conventional pump type container. Less force is required to adjust the discharge amount. Even when the plunger is left unpressed, the plunger does not move relative to the outer cylinder, so that air does not enter the outer cylinder. Even if the plunger is accidentally pulled backward with respect to the outer cylinder, the plunger does not move backward because the plunger is detached from the gasket. Therefore, according to the cosmetic container of the present invention, air does not enter the outer cylinder.

Moreover, in the cosmetic container of the present invention, it is preferable that the discharge port of the outer cylinder is provided with a collar part that protrudes from the outer peripheral part thereof and can prevent attachment of a medical device connected to a syringe. Since the cosmetic container of the present invention includes an outer cylinder and a plunger, a syringe can be obtained by attaching an injection needle or the like to the discharge port. However, since the contents are cosmetics, a saddle is provided to prevent the user from wearing these medical devices by preventing the user from using the medical devices connected to the syringe.

  Further, when the lid member has a fixed portion fixed to the outer cylinder, a closing portion that opens and closes the discharge port, and a connecting portion that connects the fixing portion and the closing portion, It is preferable that an engagement recess that engages with the flange of the discharge port is provided in the fixed portion, and the engagement recess is engaged with the flange and fixed to the outer cylinder. By setting it as such a structure, the fixing | fixed part of the said cover member can be fixed to the said discharge outlet using the said collar part. For this reason, it is not necessary to perform bonding or the like in order to fix the fixing portion to the discharge port. Moreover, since the said cover member is connected with the said outer cylinder by the said connection part, even if it opens and closes a cover member, there is no possibility that a cover member may be lost.

  Next, an example of an embodiment of the cosmetic container according to the present invention will be described with reference to FIGS. 1 to 3. As shown in FIG. 1, the container 1 of the present embodiment has an external appearance like a syringe, and includes an outer cylinder 2 in which a liquid cosmetic product C is stored, and a plunger 3 that slides in the outer cylinder 2. ing. The distal end portion of the outer cylinder 2 is a discharge port 2a, and a lid member 4 is attached to the discharge port 2a. A gasket 5 is engaged with the tip of the plunger 3. The outer cylinder 2 and the plunger 3 are formed of transparent synthetic resin, the lid member 4 is formed of flexible synthetic resin, and the gasket 5 is formed of rubber.

  The outer cylinder 2 has a substantially cylindrical shape, and a discharge port 2a having a reduced diameter is formed in the front part (right side in FIG. 1), and the rear part (left side in FIG. 1) is open. Further, a flange 2b that protrudes outward from the outer peripheral portion is provided at the tip of the discharge port 2a. The shape of the outer cylinder 2 of the present embodiment is generally the same as the outer cylinder of a syringe conventionally used for medical purposes, but is different in that a collar 2b is provided at the distal end of the discharge port 2a. . The collar portion 2b has a shape such that a medical tool such as an injection needle or a mixed injection tube cannot be attached.

  Medical devices such as injection needles include a type that fits into a tapered surface provided at the tip of a general syringe, and a type that has a female screw that is screwed into a male screw provided at the tip of the syringe. . In the outer cylinder 2 of the present embodiment, the outer periphery of the collar portion 2b is protruded outward without providing a screw portion so that these types of medical devices are not mounted. The outer cylinder of the syringe is mostly made of glass, but the outer cylinder 2 of the present embodiment is made of a transparent synthetic resin. For this reason, even if the container 1 of this embodiment is accidentally dropped on the floor etc. at the time of conveyance or use, there is no possibility of being damaged.

  The lid member 4 is formed at the connecting portion formed at the cylindrical fixing portion 4a fixed to the discharge port 2a of the outer cylinder 2, the bendable rod-like connecting portion 4b extending from the fixing portion 4a, and the tip of the connecting portion 4b. And a closing portion 4c that covers the tip of 4b and the tip of the discharge port 2a. The fixing portion 4a is formed with an engaging recess 4d that engages with the flange portion 2b of the discharge port 2a. When the lid member 4 is attached to the outer cylinder 2, the fixing portion 4a is inserted beyond the flange portion 2b of the discharge port 2a, and the engaging recess 4d of the fixing portion 4a and the flange portion 2b of the fixing portion 4a are engaged. Wear to fit. As a result, the fixing portion 4 a of the lid member 4 is attached to the discharge port 2 a of the outer cylinder 2 while being prevented from coming off.

  When the discharge port 2a of the outer cylinder 2 is closed by the lid member 4, the closing portion 4c is attached to the distal end portion of the fixed portion 4a as shown in FIG. Thereby, the cosmetic C inside the outer cylinder 2 is shielded from the outside air. On the other hand, when the user uses the cosmetic C in the outer cylinder 2, the blocking portion 4c is removed from the fixing portion 4a to expose the discharge port 2a to the outside. At this time, since the closing portion 4c is connected to the fixed portion 4a by the connecting portion 4b, the closing portion 4c is not separated from the outer cylinder 2 and thus is not lost. In particular, when the contents are cosmetics C as in the container 1 of the present embodiment, the frequency of use by the user is high, so the frequency of the closure 4c being opened and closed is high. Since there is no possibility of losing, cosmetics inside the outer cylinder 2 can be surely shielded from the outside air.

  The plunger 3 is formed in a substantially cylindrical shape and is slidable in the front-rear direction inside the outer cylinder 2. Further, a protrusion 3a for engaging the gasket 5 is provided at the tip, and a large diameter part 3b having a large diameter in the outer peripheral direction is provided at the tip of the protrusion 3a. The gasket 5 is formed in a substantially cylindrical shape, is in liquid-tight contact with the inner peripheral surface of the outer cylinder 2, and is slidable in the front-rear direction inside the outer cylinder 2. Further, the gasket 5 is provided with an engagement hole 5a opened rearward, and an engagement groove in which the large diameter portion 3b of the protruding portion 3a of the plunger 3 is engaged with the tip of the engagement hole 5a. 5b is provided. The protrusion 3a of the plunger 3 is inserted into the engagement hole 5a of the gasket 5, and the large-diameter portion 3b of the protrusion 3a is engaged with the engagement groove 5b of the engagement hole 5a. 5 are connected together.

  Here, the outer diameter of the large diameter portion 3b is not so large as compared with the outer diameter of the other portion of the protruding portion 3a, and the depth of the engaging groove 5b is also shallow. Accordingly, when the plunger 3 is pulled away from the state in which the gasket 5 is attached to the plunger 3, the gasket 5 is separated from the plunger 3, and the engagement force is weak.

  Since the container 1 according to the present embodiment has the above-described configuration, when the user uses the cosmetic C stored in the outer cylinder 2, first, the closing portion 4c of the lid member 4 is opened to discharge the outlet 2a. Is exposed to the outside, and the plunger 3 is pushed forward thereon. Then, the cosmetic C is discharged from the discharge port 2a by the amount pushed by the plunger 3. At this time, since there is no obstacle such as a check ball inside the discharge port 2a, the user can easily discharge even the cosmetic C having a high viscosity with a small force. Moreover, since it is not necessary to apply force unlike the conventional pump type container, it is not possible to discharge excessively to an unnecessary amount. Therefore, according to the container 1 of the present embodiment, the discharge amount of the cosmetic product C can be easily adjusted.

  After discharging the cosmetic C, the user can close the discharge port 2a by attaching the closing portion 4c of the lid member 4 to the fixed portion 4a. Moreover, since the fixing | fixed part 4a is mounted | worn with the outer cylinder 2 by the connection part 4b and the fixing | fixed part 4a, the obstruction | occlusion part 4c is not lost. Thereby, it can prevent reliably that the internal cosmetics C are exposed to external air.

  On the other hand, if the user accidentally pulls the plunger 3 backward while the closing part 4c of the lid member 4 is vacant, air is discharged from the discharge port 2a into the outer cylinder 2 in the case of a normal syringe. Invades. However, since the engagement force between the plunger 3 and the gasket 5 is weak in the container 1 of the present embodiment, when the plunger 3 is pulled rearward, the protruding portion 3a of the plunger 3 becomes the engagement hole of the gasket 5. Since it comes off from 5a, air does not enter into the outer cylinder 2 from the discharge port 2a.

  Moreover, since the collar part 2b is provided in the front-end | tip part of the discharge outlet 2a, it cannot connect with medical tools, such as an injection needle and a mixed injection tube. Therefore, even if the container 1 of the present embodiment is mixed into a medical site or the like for some reason, the container 1 of the present embodiment is not likely to be used by mistake.

Sectional drawing of the container for cosmetics which is an example of embodiment of this invention. The principal part expanded sectional view of the container for cosmetics of the state which opened the cover. The principal part expanded sectional view of the container for cosmetics which shows the state by which the plunger was pulled back.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Cosmetic container, 2 ... Outer cylinder, 3 ... Plunger, 4 ... Cover member, 5 ... Gasket.

Claims (3)

An outer cylinder having a discharge port at the front end portion and having a rear end portion opened and containing liquid cosmetics therein; a plunger engaged with a gasket at the front end portion and inserted into the inside from the rear of the outer cylinder; A lid member that can be freely opened and closed at the discharge port,
The plunger has a substantially cylindrical shape with a protruding portion provided at the tip, and the gasket is formed in a substantially cylindrical shape with an engagement hole opened toward the rear, and the tip of the engagement hole has a An engagement groove having a shallow depth for engaging the large diameter portion of the protruding portion of the plunger is provided, and when the plunger is pulled backward with respect to the outer cylinder, the large diameter portion of the protruding portion is separated from the engagement groove. A cosmetic container, wherein the cosmetic container is engaged with the gasket so as to come off and separate from the gasket. The cosmetic container according to claim 1, wherein the discharge port of the outer cylinder includes a collar that protrudes from an outer peripheral portion thereof and can prevent attachment of a medical device connected to a syringe.   The lid member includes a fixing portion fixed to the outer cylinder, a closing portion that opens and closes the discharge port, and a connecting portion that connects the fixing portion and the closing portion, and the discharge port is provided in the fixing portion. The cosmetic container according to claim 2, wherein an engagement recess that engages with the collar is provided, and the engagement recess is engaged with the collar and fixed to the outer cylinder.

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