JP7512054B2 - Cosmetic containers - Google Patents

Description

The present invention relates to a cosmetic container for storing cosmetics, and more specifically to a cosmetic container that can prevent the stored cosmetics from deteriorating due to ultraviolet rays and allows the remaining amount of cosmetics to be confirmed.

Conventionally, various types of cosmetics, such as liquids and creams, are known, but many of these cosmetics deteriorate when exposed to ultraviolet light. For this reason, it has been proposed to make containers for storing cosmetics out of materials that have an ultraviolet light shielding effect. However, if a cosmetic container is made of a material that has an ultraviolet light shielding effect, it becomes impossible or difficult to check the amount of cosmetic remaining inside the container. For this reason, various cosmetic containers have been proposed that are made of materials that have an ultraviolet light shielding effect, but that allow the amount of cosmetic remaining inside the container to be visually confirmed.

For example, Patent Document 1 shows a container equipped with a structure having a pair of transparent plates arranged opposite each other, one of which has a retroreflective structure on the surface facing the other, and a mechanism for supplying and discharging liquid to the retroreflective structure. With this container, the retroreflective structure is normally kept in a light-reflecting state to block ultraviolet light from entering the inside of the container, and liquid is supplied to the retroreflective structure to set it to a light-transmitting state only when it is desired to check the amount of content remaining in the container, and the retroreflective structure can be returned to the light-reflecting state once checking of the remaining amount has been completed.

Patent Document 2 also shows a cosmetic container in which a transparent outer container is joined to an opaque inner container that is connected to an airless discharge pump that discharges the contents to form a double container, a disk is placed inside the inner container, while an insertion groove is formed on the inner surface of the outer container, and a remaining amount indicator band connected to the disk is inserted into the insertion groove. With this container, the remaining amount of the contents stored in the inner container can be confirmed by the height of the remaining amount indicator band.

Patent Document 3 also shows a dispenser container in which a riseable partition wall portion having a flow mechanism through which the liquid contents can flow is fitted inside the container body that contains the liquid contents, and a sight hole is provided in the container body so that the partition wall portion can be seen through the sight hole. With this dispenser container, the remaining amount of liquid contents can be confirmed by looking at the height position of the partition wall portion through the sight hole.

Patent document 4 also shows a container in which a transparent remaining amount viewing window is formed on the side wall of an opaque container to determine the remaining amount of contents, and this remaining amount viewing window is covered with a light-shielding member. More specifically, the light-shielding member is a label piece that is removably attached to the outside of the remaining amount viewing window by an adhesive on the back side, or a printed part formed on a film-like roll that is rotatably arranged on the outer periphery of the side wall of the opaque container. With this container, the remaining amount of contents can be confirmed through the remaining amount viewing window by peeling the label piece from the remaining amount viewing window or by rotating the roll to shift the printed part from the position of the remaining amount viewing window.

Patent Document 5 also shows a container consisting of a double container in which an outer container and an inner container for storing the contents are assembled so as to be rotatable, with a transparent window provided on the outer peripheral surface of the outer container, and a transparent section and a display section on the outer surface of the inner container whose position changes depending on the angle of rotation with respect to the outer container, and an opaque adhesive sheet covering the window section is detachably attached to the part of the outer container corresponding to the window section via an adhesive section. With this container, the remaining amount and condition of the contents can be checked by setting the rotation positions of both containers so that the transparent window section of the outer container and the transparent section of the inner container are aligned.

Patent document 6 also shows a container with a window, which is composed of an inner container that holds the contents and an outer container that can rotate relative to the inner container, and in which windows are provided on the outer peripheral walls of the inner container and the outer container through which the inside can be viewed. With this container, the remaining amount and condition of the contents can be checked by setting the rotation positions of both containers so that the windows of the inner container and the outer container are aligned.

JP 2017-58605 A Japanese Patent No. 5806777 Patent No. 5088944 JP 2005-119691 A Patent No. 4744906 Japanese Patent No. 4468220

The containers shown in Patent Documents 1 and 2 have the problem of being complicated in structure and expensive. The containers shown in Patent Documents 3 to 6 have a relatively simple structure, but have the following problems due to the transparent window provided in the container. That is, such a window often becomes dirty or worn as the container is used repeatedly, and in particular when an adhesive sheet is attached to this window, the window often becomes dirty due to the adhesive layer, and when this occurs, it becomes difficult to accurately check the remaining amount of stored contents.

The present invention was made in consideration of the above circumstances, and aims to provide a cosmetics container that can prevent stored cosmetics from deteriorating due to ultraviolet rays and allows the remaining amount of cosmetics to be checked easily and accurately.

As one embodiment, the cosmetic container according to the present invention comprises:
A container for storing cosmetics having a bottom and a transparent container body over its entire length ;
an outer cylinder, which is a bottomless cylindrical member made of a light-shielding material and which surrounds the container body from the outside except for the lower part, and which has a spiral engagement portion on its inner circumferential surface;
a lid body made of a light-shielding material, which closes an opening on the upper end side of the outer cylinder, covers the upper part of the container body, and holds the container body and the outer cylinder so that a lower part of the container body protrudes from the lower end of the outer cylinder;
A bottomed, tubular skirt part made of a light-shielding material and capable of housing the lower part of the container body therein;
A cylindrical screw part having a spiral engaged portion on an outer circumferential surface thereof and through which the container body is inserted;
A rod-shaped connecting member that connects the skirt part and the screw part,
the skirt part, the connecting member, and the screw part are movable relative to the container body, the outer tube, and the lid body;
The skirt part, the connecting member, and the screw part are
a closed position in which the outer tube and the skirt part are in contact with each other and a lower part of the container body protruding from a lower end of the outer tube is accommodated inside the skirt part;
A gap is formed between the outer tube and the skirt part, and the container body can be selectively placed in an open position or an open position in which the lower part of the container body is visible from the outside .

In the above configuration, the helical engaging portion of the outer cylinder is a screw groove, and the helical engaged portion of the engaging part is a threaded ridge that engages with the screw groove.
Alternatively, one of the helical engaging portion and the helical engaged portion is a thread groove, and the other is a thread ridge that threadably engages with the thread groove, and the thread groove and the thread ridge form a multiple-start thread.

As another embodiment, the cosmetic container according to the present invention includes:
A container for storing cosmetics having a bottom and a transparent container body over its entire length;
an outer cylinder, which is a bottomless cylindrical member made of a light-shielding material and surrounding a portion of the container body other than the lower portion from the outside , and which is provided with a magnetic attraction means;
a lid body made of a light-shielding material, which closes an opening on the upper end side of the outer cylinder, covers the upper part of the container body, and holds the container body and the tubular member so that a lower part of the container body protrudes from the lower end of the outer cylinder;
A bottomed, tubular skirt part made of a light-shielding material and capable of housing the lower part of the container body therein;
a cylindrical engaging part provided with a magnetic attraction means and through which the container body is inserted;
A rod-shaped connecting member that connects the skirt part and the engagement part,
the skirt part, the connecting member, and the engaging part are movable relative to the container body, the outer tube, and the lid body;
The skirt part, the connecting member, and the engaging part are
a closed position in which the outer tube and the skirt part are in contact with each other and a lower part of the container body protruding from a lower end of the outer tube is accommodated inside the skirt part;
A gap is formed between the outer cylinder and the skirt part, and the container body can be selectively moved between an open position and an open position in which the lower part of the container body is visible from the outside ,
The inner surface of the outer tube and the outer surface of the engaging part engage with each other through the magnetic attraction means provided on the outer tube and the magnetic attraction means provided on the engaging part, thereby preventing the engaging part from falling off downward from the outer tube .

In yet another embodiment of the cosmetic container of the present invention,
A container for storing cosmetics having a bottom and a transparent container body over its entire length ;
a bottomless cylindrical member made of a light-shielding material, having a side opening that allows at least a lower portion of the container body to be viewed from the outside, and surrounding the container body from the outside;
a lid body made of a light-shielding material, which closes an opening at an upper end side of the cylindrical member, covers the upper side of the container body, and holds the container body and the cylindrical member;
a rotary shutter made of a light-shielding material, assembled to the cylindrical member, and not in contact with the container body;
The rotary shutter is rotatable relative to the container body, the cylindrical member, and the lid body in a circumferential direction of the cylindrical member, and thus is rotatable relative to the container body, the cylindrical member, and the lid body.
The rotary shutter rotates relative to the cylindrical member.
a closed position in which the rotary shutter contacts an edge of the side opening to close the side opening;
a position in which a portion of the rotary shutter enters the inner diameter side of the cylindrical member and separates from the end edge to open the side opening; and an open position in which the rotary shutter is movable away from the end edge to open the side opening.

The opening formed in the bottomless tubular member is preferably a slit-shaped opening extending in the axial direction of the tubular member over a length close to the entire length of the tubular member. The cosmetic container further includes a bottom plate made of a light-shielding material for closing the opening at the lower end of the bottomless tubular member, the bottom plate being rotatable relative to the bottomless tubular member in the circumferential direction of the tubular member, and the rotary shutter is fixed on the bottom plate and rotates together with the bottom plate.

It is also preferable that the cosmetic container according to the present invention further comprises a dip tube that is immersed in the liquid cosmetic stored in the container body, and a spray device that sprays the liquid cosmetic sucked up through the dip tube in a spray form. It is also preferable that the entire container body of the cosmetic container according to the present invention is transparent, and that the container body is made of a cylindrical member.

The cosmetic container of the present invention is composed of a container body having a transparent portion at least in a predetermined range from the bottom to a position above the bottom, a light-shielding cover that is integrated with the container body in a state of surrounding the container body, and a movable light-shielding member that can selectively take an open position in which a gap is formed between the light-shielding cover and a closed position in which no gap is formed by moving relative to the light-shielding cover while attached to the light-shielding cover. Therefore, the remaining amount of cosmetic in the container body can be easily checked simply by operating the movable light-shielding member to move to the open position as appropriate. In other words, according to the cosmetic container of the present invention, the remaining amount of cosmetic can be checked more easily than when the container lid is opened one by one to check the remaining amount of cosmetic. On the other hand, if the light-shielding member is set to the closed position, it is possible to reliably prevent the cosmetic in the container body from deteriorating due to ultraviolet rays.

In addition, the cosmetic container of the present invention allows the user to see the container body inside through the gap formed between the movable light-shielding member and the light-shielding cover, making it possible to accurately check the remaining amount of cosmetic stored in the container body without incurring the problem found in conventional devices, namely, the problem of the transparent window portion used to check the remaining amount of cosmetic becoming dirty or scratched.

FIG. 1 is a perspective view showing an overall shape of a cosmetic container according to a first embodiment of the present invention; FIG. 2 is an exploded perspective view showing the cosmetic container of FIG. 1 in a partially transparent state. FIG. 2 is a perspective view showing the overall shape of the cosmetic container in a state different from that shown in FIG. FIG. 4 is a perspective view showing the cosmetic container in the state shown in FIG. 3 in a partially see-through state; FIG. 11 is a perspective view showing the overall shape of a cosmetic container according to a second embodiment of the present invention; FIG. 6 is a perspective view showing the cosmetic container of FIG. 5 in a partially see-through state. FIG. 6 is a cross-sectional plan view showing a portion of the cosmetic container shown in FIG. FIG. 6 is a side cross-sectional view showing a portion of the cosmetic container of FIG. FIG. 6 is a perspective view showing the overall shape of the cosmetic container in a state different from that shown in FIG.

The following describes in detail an embodiment of the present invention with reference to Figs. 1 to 4. Fig. 1 shows the overall shape of a cosmetic container 1 according to a first embodiment of the present invention, and Fig. 2 shows the cosmetic container 1 partially exploded and partially in a see-through state. As shown in these figures, the cosmetic container 1 has a container body 10 formed, for example, in a cylindrical shape with a bottom, a bottomless cylindrical outer tube 11 arranged roughly coaxially with the container body 10 so as to cover most of the container body 10 from the outside, a lid portion 12 arranged on the outer tube 11, and a cylindrical protrusion 13 formed at the upper end of the lid portion 12 and having a smaller diameter than the lid portion 12.

In FIG. 2, the outer tube 11 is shown in a transparent state. The outer tube 11 and the container body 10 are integrated with the lid portion 12 at the top and are held by the lid portion 12. In FIG. 2, the bottom of the container body 10 is shown as 10a. The container body 10 is formed from, for example, transparent resin or transparent glass over its entire length so that the remaining amount of cosmetic C can be visually confirmed from the outside as described below. In contrast, the outer tube 11 is formed from an opaque light-shielding material, more specifically, a material appropriately colored in a preferred color in consideration of appearance, in order to prevent deterioration of the cosmetic C due to irradiation of ultraviolet rays through the transparent container body 10. The lid portion 12 is also formed from a light-shielding material, and together with the outer tube 11, constitutes a light-shielding cover in the present invention.

A spray button 15 with a horizontally oriented spray nozzle 14 is disposed within the cylindrical protrusion 13. The spray nozzle 14 is connected to a suction dip tube 16 disposed within the container body 10 via a passage within the spray button 15 and a spray unit (not shown). The spray unit is a well-known unit that is applied to spray devices also known as atomizers or aerosol devices, and is equipped with a metered amount chamber, a valve mechanism, etc.

When the spray button 15 is pressed down a certain distance, the communication between the metered volume chamber and the dip tube 16 is blocked, and when the spray button 15 is pressed down further, the cosmetic C stored in the metered volume chamber is sprayed out of the spray nozzle 14 in a spray (atomized) form. When the spray button 15 is then released, it is returned to its original position, which is a high position, by a biasing means not shown. At this time, the communication between the metered volume chamber and the dip tube 16 is opened, and the cosmetic C in the container body 10 is sucked up through the dip tube 16 and a certain amount is stored in the metered volume chamber.

Below the outer tube 11, a skirt part 20 having a generally cylindrical shape with a bottom is arranged. When the skirt part 20 is arranged below the outer tube 11 with its upper end (the end opposite to the bottom) in contact with the outer tube 11 as described below, it accommodates the portion of the container body 10 that protrudes below the outer tube 11. The skirt part 20 constitutes the movable light-shielding member of the present invention, and is made of an opaque light-shielding material like the outer tube 11. That is, the skirt part 20 is appropriately colored, preferably in a dark color, in order to prevent deterioration of the cosmetic C caused by irradiation of ultraviolet rays through the container body 10, and also in consideration of the appearance. Two connecting members 21 are connected to the upper end of the skirt part 20, and these connecting members 21 are connected to generally cylindrical screw parts 22. The screw parts 22 have screw ridges 22a formed on the outer circumferential surface.

On the other hand, the cylindrical outer tube 11 described above has a screw groove 11a as a helical engagement portion engraved on its inner circumferential surface. The screw ridge 22a of the screw part 22 is formed as an engaged portion that screws into the screw groove 11a of the outer tube 11. Therefore, as shown in FIG. 2, the skirt part 20 is arranged below the outer tube 11, and the screw ridge 22a of the screw part 22 is engaged with the screw groove 11a of the outer tube 11, and then the skirt part 20 is rotated, so that the screw part 22 can be screwed forward and backward in the tube axis direction within the outer tube 11. By screwing the screw part 22 forward and backward in this way, the skirt part 20 also moves in the tube axis direction of the outer tube 11 together with the screw part 22. In this embodiment, the screw groove 11a and the screw ridge 22a are double-thread threads with a lead twice the pitch. Therefore, compared to when the screw groove 11a and the screw ridge 22a are a normal single-start screw, the skirt part 20 can be moved a relatively long distance in the axial direction by simply rotating it by a relatively small angle.

By moving the skirt part 20 as far as possible toward the outer tube 11, the upper end surface of the skirt part 20 can be brought into contact with the lower end surface of the outer tube 11, with no gap between them, as shown in FIG. 1. By moving the skirt part 20 away from the outer tube 11 from this state, the upper end surface of the skirt part 20 can be separated from the lower end surface of the outer tube 11, with a gap between them, as shown in FIG. 3. The cosmetic container 1 in this state is shown in FIG. 4 with the outer tube 11 in a see-through state. Here, the screw groove 11a and the screw ridge 22a are usually right-handed. In that case, if the skirt part 20 is rotated clockwise, the skirt part 20 will move closer to the outer tube 11, and if the skirt part 20 is rotated counterclockwise, the skirt part 20 will move away from the outer tube 11.

As the cosmetic C is used repeatedly, the remaining amount gradually decreases, and the liquid level L of the cosmetic C drops to a position close to the bottom 10a of the container body 10. Figures 3 and 4 show a state in which the liquid level L is at such a position. On the other hand, as described above, the container body 10 is formed so that a part of it, including the bottom 10a, protrudes below the outer tube 11. In other words, the overall length of the container body 10 is greater than the overall length of the outer tube 11. Therefore, as shown in Figures 3 and 4, if the skirt part 20 is lowered to a position (open position) where a gap is created between the outer tube 11, the part close to the bottom 10a of the container body 10 can be seen. This allows the user to check whether the liquid level L of the cosmetic C has dropped to a position close to the bottom 10a of the container body 10 and whether there is only a small amount of cosmetic C remaining. In the cosmetic container 1 of this embodiment, the container body 10 is viewed through the gap, so the remaining amount of cosmetic C can be accurately confirmed without causing problems such as the transparent window portion provided for checking the remaining amount of cosmetic becoming dirty or scratched. This is also true of the cosmetic container 2 of the second embodiment described below.

The remaining amount of cosmetic C can be checked as described above by the user as appropriate based on his or her own memories of cosmetic use. In normal times other than when checking the remaining amount, that is, when using or carrying the cosmetic container 1, the skirt part 20 is set to the position (closed position) shown in FIG. 1, which does not create a gap between the outer tube 11. When the cosmetic container 1 is in this state, the transparent container body 10 storing the cosmetic C is covered on the outer periphery by the opaque outer tube 11 and the skirt part 20, and the outside of the bottom 10a is also covered by the skirt part 20. In addition, the upper part of the container body 10 is originally covered by the lid part 12. Therefore, the cosmetic C in the container body 10 is prevented from being deteriorated by ultraviolet rays from the outside. In addition, since the screw groove 11a and the screw ridge 22a are double-threaded as described above, the operation of moving the skirt part 20 between the closed position and the open position can be performed quickly.

The container body 10 may be entirely transparent, or only a specified area visible when the skirt part 20 is set in the open position (i.e., a specified area above the bottom 10a) may be made of a transparent material, with the remaining area being made of a light-shielding material to more reliably prevent ultraviolet rays from reaching the stored cosmetic C.

It is also desirable to prevent the skirt part 20 from inadvertently moving from the closed position to the open position. To this end, for example, the screw ridge 22a and the screw groove 11a are configured so that a moderate frictional resistance occurs between them when the skirt part 20 rotates, thereby preventing the screw ridge 22a from easily screwing forward and backward with a small force. In addition, the screw groove 11a and the screw ridge 22a may be a double-threaded thread, or may be a multi-threaded three-threaded thread or a four-threaded thread. Since it is not necessary to maintain a particularly high level of airtightness between the outer tube 11 and the skirt part 20, it is desirable to apply such a multi-threaded thread with an emphasis on the speed of operation. However, it is also possible to apply such a multi-threaded thread without applying such a multi-threaded thread, and the screw groove 11a and the screw ridge 22a may be a normal single-threaded thread.

In addition, the inner peripheral surface of the outer tube 11 on which the screw groove 11a is engraved must be the inner peripheral surface of a cylinder, but the outer peripheral surface of the outer tube 11 does not have to be the outer peripheral surface of a cylinder. For example, this outer peripheral surface may be the outer peripheral surface of a polygonal tube such as a rectangular tube. On the other hand, the inner peripheral surface and/or outer peripheral surface of the peripheral wall portion of the skirt part 20 may be a surface other than a cylindrical surface. However, in consideration of the aesthetic appearance of the cosmetic container 1, it is desirable that the outer peripheral surface of this peripheral wall portion has a shape that matches the outer peripheral surface of the outer tube 11 when the skirt part 20 is set to the aforementioned closed position.

In this embodiment, the structure in which the threaded ridge 22a is screwed into the thread groove 11a is used to move the skirt part 20 between the closed position and the open position, but the skirt part 20 may be made movable by other structures. One such structure is, for example, a normal cylindrical member without the threaded ridge 22a is used instead of the roughly cylindrical threaded part 22, and when this cylindrical member receives an operating force, it is movable in the axial direction along the inner surface of the outer tube 11 while generating moderate frictional resistance. When such a structure is applied, in order to prevent the cylindrical member replacing the threaded part 22 from falling out of the outer tube 11, a means for attracting the two by magnetic force can be used.

The cosmetic container of the present invention may be formed without the dip tube 16 and the spray device for spraying the liquid cosmetic sucked up through the dip tube 16 in a spray form, for example, by opening a small cap partially provided on the lid portion 12 and taking out the cosmetic from the upper opening of the container body 10. However, a cosmetic container configured in this way is generally tilted every time the cosmetic is taken out, and the degree of tilt required at that time makes it easy for the user to recognize the remaining amount of cosmetic. In contrast, a cosmetic container equipped with the dip tube 16 and spray device makes it difficult to recognize the remaining amount of cosmetic until the cosmetic stops being sprayed in a spray form or the amount sprayed becomes small. Therefore, applying the present invention to such a cosmetic container is particularly preferable, since it is highly effective in preventing a sudden situation in which the cosmetic is not able to be used due to lack of cosmetic.

Next, referring to Figs. 5 to 9, a cosmetic container 2 according to another embodiment of the present invention will be described. In Figs. 5 to 9, the same elements as those in Figs. 1 to 4 described above are given the same numbers, and their description will be omitted unless necessary. Figs. 5 and 6 show the overall shape of the cosmetic container 2 according to the second embodiment of the present invention. In particular, Fig. 6 shows the outer tube 30 constituting this cosmetic container 2 in a transparent state. The outer tube 30 is formed in a generally bottomless cylindrical shape using a light-shielding material, similar to the outer tube 11 described above. However, unlike the outer tube 11, this outer tube 30 has a slit-shaped opening (side opening) 30a that extends in the axial direction of the tube from a position slightly below the upper end to the lower end. The outer tube 30 and the container body 10 are integrated at the upper part with a lid portion 12 made of a light-shielding material and are held therein. The end opening at one end side (the upper end side in the figure) of the outer tube 30 is closed by this lid portion 12.

A disk-shaped bottom plate 40 made of a light-blocking material is disposed on the other end side (the lower end side in the figure) of the outer cylinder 30 as described below. The container body 10 is surrounded by this bottom plate 40, the lid portion 12, and the parts of the outer cylinder 30 other than the opening 30a. In other words, the bottom plate 40, the lid portion 12, and the parts of the outer cylinder 30 other than the opening 30a constitute the light-blocking cover of the present invention, which blocks external light from entering the container body 10.

On the bottom plate 40, a rotating shutter 43 consisting of a thick portion 41 and a thin portion 42, both of which extend in the length direction of the outer tube 30, is erected. This rotating shutter 43 is also made of a light-shielding material and is combined with the outer tube 30. Here, Figs. 7 and 8 show an enlarged view of the outer tube 30 and the peripheral portion of the rotating shutter 43. Fig. 7 is a plan sectional view showing the vicinity of the middle position within the entire length of the outer tube 30, cut in a plane perpendicular to the axial direction of the outer tube 30. Meanwhile, Fig. 8 is a side sectional view showing the portion along line Y shown in Fig. 7 over the entire width of the outer tube 30, as seen from the direction of the arrow in Fig. 7. In Fig. 8, the bottom plate 40, which is disc-shaped, and the holding members 44, 45, and 46, which are also disc-shaped, are not shown in cross section, but are shown as viewed from the side.

As shown in FIG. 8, a holding member 46 having a smaller outer diameter than the disk-shaped holding members 44 and 45 is disposed between them, and these holding members 44, 45, 46 are fixed on the bottom plate 40. In FIG. 7 and FIG. 8, the rotating shutter 43 (in FIG. 8, the thick part 41 through which the cross section passes) erected on the bottom plate 40 is shown separated from the holding members 44 and 45 for ease of understanding. However, in reality, the rotating shutter 43 has an inner surface curved along the outer peripheral surfaces of the holding members 44 and 45, and is disposed in a state in which the inner surface is slidable with the holding members 44 and 45 and in contact with the outer peripheral surfaces of the holding members 44 and 45.

The bottom plate 40 is also positioned slightly away from the lower end surface of the outer tube 30, and is rotatable relative to the outer tube 30. For this purpose, an annular protrusion 31 is formed on the inner peripheral surface of the outer tube 30, excluding the rotation range of the rotating shutter 43, which rotates as described below, and protrudes inward in a roughly annular shape. This annular protrusion 31 is loosely fitted between the holding members 44 and 45, and determines the vertical position of the bottom plate 40 relative to the outer tube 30 as described above, while allowing the bottom plate 40 to rotate relative to the outer tube 30. When the bottom plate 40 rotates in this manner, the holding members 44, 45, 46 and the rotating shutter 43, which are integrated with the bottom plate 40, also rotate together with the bottom plate 40.

Figure 7 shows the combination state of the rotating shutter 43 and the outer tube 30. As shown here, the planar cross-sectional shape of the outer tube 30 is shaped to correspond to the planar cross-sectional shape of the rotating shutter 43 consisting of the thick part 41 and the thin part 42, allowing the rotating shutter 43 to rotate together with the bottom plate 40. The rotating shutter 43 constitutes the moving light-shielding member in the present invention, and by rotating, it can selectively take a closed position that closes the opening 30a of the outer tube 30 and an open position that opens a part of the opening 30a. That is, as shown in Figure 7, among the edges extending in the vertical direction of the opening 30a (direction perpendicular to the paper surface of Figure 7), the part of the outer tube 30 adjacent to the edge on the thin part 42 side is a thin part having an inner peripheral surface 30b that can slide on the outer peripheral surface of the thin part 42. Additionally, the portion of the outer tube 30 that is adjacent to the edge of the opening 30a that extends in the vertical direction and is on the thicker portion 41 side is also shaped to receive a short protrusion that protrudes from the thicker portion 41 to the left in the figure.

Figure 7 shows the rotating shutter 43 in the closed position, but because the portion of the outer tube 30 adjacent to the edge of the opening 30a has the shape described above, when the rotating shutter 43 is set in this closed position, external light is prevented from entering the inside of the outer tube 30 through the opening 30a. When the rotating shutter 43 is rotated counterclockwise from the state shown in Figure 7, the rotating shutter 43 rotates so that its thin portion 42 slides on the inner surface of the thin portion of the outer tube 30, and the thick portion 41 moves away from the edge of the opening 30a. The position of the rotating shutter 43 when the thick portion 41 moves away from the edge of the opening 30a and the opening 30a is even partially open in this way is the open position.

When the rotating shutter 43 rotates to a position where the opening 30a is fully opened, the side end of the thick portion 41 of the rotating shutter 43 abuts against the side end of the outer cylinder 30 that forms the edge of the opening 30a, preventing further rotation of the rotating shutter 43 (state shown in FIG. 9). The rotating shutter 43 can be rotated by, for example, directly moving the thick portion 41 of the rotating shutter 43, or by rotating the bottom plate 40. The rotating shutter 43 is basically formed concentrically with the outer cylinder 30 and rotates concentrically, but this concentric rotation is achieved by a mechanism that combines the annular protrusion 31 and the outer cylinder 30 with the holding members 44, 45, and 46 that are integrated with the rotating shutter 43.

Figures 5 and 6 show the cosmetic container 2 when the rotating shutter 43 is in the closed position. When the rotating shutter 43 is in the closed position and blocks external light, the cosmetic C in the container body 10 is prevented from being deteriorated by exposure to ultraviolet light from the outside. On the other hand, Figure 9 shows the cosmetic container 2 when the rotating shutter 43 is in the open position. In this case, the user can see almost the entire length of the container body 10 inside the outer tube 30 through the partially opened opening 30a. This allows the user to check as needed whether or not there is only a small amount of cosmetic C remaining.

In addition to forming the entire container body 10 transparent, only a specified range that can be seen when the rotating shutter 43 is set to the aforementioned open position may be formed from a transparent material, and the remaining portion may be formed from a light-shielding material to more reliably prevent ultraviolet rays from entering the stored cosmetic C. The above-mentioned "specified range" may be, for example, a slit-shaped portion of a specified width that faces the opening 30a of the outer tube 30 and extends over the entire length of the container body 10, or it may be only a specified length of such a slit-shaped portion above the bottom 10a that is particularly necessary for checking the remaining amount of cosmetic C.

It is also desirable to prevent the rotary shutter 43 from inadvertently moving from the closed position to the open position. To achieve this, when the rotary shutter 43 rotates, for example, a moderate frictional resistance should be applied between the surfaces of the holding members 44 and 45 on the side of the holding member 46 shown in FIG. 8 and the annular protrusion 31, or between the outer peripheral surfaces of the holding members 44 and 45 and the outer tube 30, so that the rotary shutter 43 does not rotate easily with a small force. In addition, the slit-shaped openings 30a as side openings in the outer tube 30 may be provided in a plurality of locations spaced apart from each other in the circumferential direction of the outer tube 30. This makes the inside of the outer tube 30 brighter when the openings 30a are opened, making it possible to more reliably and easily check the remaining amount of cosmetic C. In this case, the plurality of openings 30a may be opened and closed in conjunction with each other at different parts of one rotary shutter, or may be opened and closed independently by individual rotary shutters.

As described above, examples of liquid cosmetics C that are used in a spray form include, but are not limited to, perfume, lotion, and antiperspirant. The cosmetic container of the present invention is not limited to the above-mentioned cosmetics C, and can be used to store any type of cosmetics, such as liquid cosmetics that are not sprayed, cream cosmetics, and solid cosmetics, and can also be used to store chemicals that may deteriorate due to ultraviolet rays.

Reference Signs List 1, 2 Cosmetic container 10 Container body 10a Bottom of container body 11 Outer cylinder 11a Screw groove 12 Lid 13 Convex 14 Spray nozzle 15 Spray button 16 Dip tube 20 Hakama part 21 Connecting member 22 Screw part 22a Screw ridge 30 Outer cylinder 30a Opening of outer cylinder 30b Inner surface of outer cylinder 31 Annular convex 40 Bottom plate 41 Thick part of rotating shutter 42 Thin part of rotating shutter 43 Rotating shutter 44, 45, 45 Holding member C Cosmetic L Liquid level of cosmetic

Claims (6)

A container for storing cosmetics having a bottom and a transparent container body over its entire length;
an outer cylinder, which is a bottomless cylindrical member made of a light-shielding material and which surrounds the container body from the outside except for the lower part, and which has a spiral engagement portion on its inner circumferential surface;
a lid body made of a light-shielding material, which closes an opening on the upper end side of the outer cylinder, covers the upper part of the container body, and holds the container body and the outer cylinder so that a lower part of the container body protrudes from the lower end of the outer cylinder;
A bottomed, tubular skirt part made of a light-shielding material and capable of housing the lower part of the container body therein;
A cylindrical screw part having a spiral engaged portion on an outer circumferential surface thereof and through which the container body is inserted;
A rod-shaped connecting member that connects the skirt part and the screw part,
the skirt part, the connecting member, and the screw part are movable relative to the container body, the outer tube, and the lid body;
The skirt part, the connecting member, and the screw part are
a closed position in which the outer tube and the skirt part are in contact with each other and a lower part of the container body protruding from a lower end of the outer tube is accommodated inside the skirt part;
A gap is formed between the outer cylinder and the skirt part, and the container body can be selectively placed in an open position or an open position in which the lower part of the container body is visible from the outside.
Cosmetic container. The helical engagement portion of the outer cylinder is a screw groove,
The helical engaged portion of the threaded part is a threaded protrusion that engages with the thread groove.
The cosmetic container according to claim 1. One of the helical engaging portion of the outer cylinder and the helical engaged portion of the threaded part is a thread groove, and the other is a threaded protrusion that threadably engages with the thread groove,
The screw groove and the screw ridge constitute a multiple start screw.
The cosmetic container according to claim 1 or 2. A container for storing cosmetics having a bottom and a transparent container body over its entire length;
an outer cylinder, which is a bottomless cylindrical member made of a light-shielding material and surrounding a portion of the container body other than the lower portion from the outside , and which is provided with a magnetic attraction means;
a lid body made of a light-shielding material, which closes an opening on the upper end side of the outer cylinder, covers the upper part of the container body, and holds the container body and the tubular member so that a lower part of the container body protrudes from the lower end of the outer cylinder;
A bottomed, tubular skirt part made of a light-shielding material and capable of housing the lower part of the container body therein;
a cylindrical engaging part provided with a magnetic attraction means and through which the container body is inserted;
A rod-shaped connecting member that connects the skirt part and the engagement part,
the skirt part, the connecting member, and the engaging part are movable relative to the container body, the outer tube, and the lid body;
The skirt part, the connecting member, and the engaging part are
a closed position in which the outer tube and the skirt part are in contact with each other and a lower part of the container body protruding from a lower end of the outer tube is accommodated inside the skirt part;
A gap is formed between the outer cylinder and the skirt part, and the container body can be selectively moved between an open position and an open position in which the lower part of the container body is visible from the outside ,
The inner peripheral surface of the outer tube and the outer peripheral surface of the engaging part are engaged with each other by the magnetic attraction means provided on the outer tube and the magnetic attraction means provided on the engaging part, thereby preventing the engaging part from falling out downward from the outer tube.
Cosmetic container. a dip tube that is immersed in the liquid cosmetic material stored in the container body;
and a spray device that sprays the liquid cosmetic material sucked up through the dip tube in a spray form.
The cosmetic container according to any one of claims 1 to 4 . The cosmetic container according to claim 1 , wherein the container body is made of a cylindrical member.