JPH038173Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dispensing container that stores an object to be dispensed, such as lipstick, lip balm, hair conditioner, etc., and is particularly concerned with a dispensing container that contains an object to be dispensed, such as a lipstick, lip balm, hair conditioner, etc. This invention relates to a dispensing container designed to prevent

[Prior art]

2. Description of the Related Art Dispensing containers for dispensing stick-shaped cosmetics such as lipsticks are generally known.

Incidentally, the recent trend has been to include relatively large amounts of volatile ingredients in stick-shaped cosmetics such as lipsticks, but conventional dispensing containers cannot keep the interior airtight and the volatile ingredients may evaporate. and dissipates to the outside.

For this reason, the prior art has the disadvantage that bar-shaped cosmetics such as lipsticks containing volatile components deteriorate in quality and become thin due to evaporation of the volatile components.

[Problem that the invention attempts to solve]

The present invention was developed in view of the above-mentioned drawbacks of the prior art, and the problems to be solved by the present invention are as follows:
To provide a dispensing container whose interior can be hermetically sealed and whose sealed space is made as small as possible to prevent volatile components in an object to be dispensed from evaporating.

[Means for solving problems]

The configuration adopted by the present invention in order to solve the above-mentioned problems includes an outer cylinder for rotational operation, an outer cylinder fixed to the base end side of the outer cylinder so as to rotate integrally with the outer cylinder,
a rotating shaft extending in the axial direction inside the outer cylinder and having a thread formed on the outer periphery; an inner cylinder fitted in the outer cylinder so as to be relatively rotatable and having a distal end protruding from the distal end of the outer cylinder; an engagement protrusion that protrudes radially inward on the inner circumferential surface of the inner cylinder; and an engagement protrusion that is slidably inserted into the inner cylinder and that engages with the male thread of the rotation shaft and slides in the axial direction. a displaceable inner tray for storing an object to be dispensed; and a vertically elongated engagement member provided on the inner tray to extend in the axial direction of the inner tray, and which engages with the engagement protrusion to restrict rotation of the inner tray. In a dispensing container comprising a mating groove and a bottomed cylindrical cap whose opening side is attached to the distal end side of the outer cylinder so as to cover the distal end side of the inner cylinder, a first seal consisting of an annular groove located near the axial tip and provided on the outer periphery of the inner plate; and an O-ring attached to the annular groove for sealing between the inner plate and the inner cylinder; a member, an annular groove located on the outer periphery of the inner cylinder and located at a portion fitted into the outer cylinder, and an annular groove installed in the annular groove for sealing between the inner cylinder and the outer cylinder. A second sealing member consisting of an O-ring, an annular groove provided on the outer periphery of the distal end side of the outer cylinder, and an O-ring attached to the annular groove in order to seal between the outer cylinder and the cap. and a third seal member.

[Effect]

The dispensing container constructed in this way can be constructed by removing the cap and rotating the outer cylinder and inner cylinder relative to each other.
With the engagement protrusion and the engagement groove engaged, the inner plate is fed out and put in.

Then, a first sealing member made of an O-ring is attached to an annular groove provided on the outer periphery of the inner plate located on the distal side of the engagement groove, and the sealing member seals between the inner plate and the inner cylinder. It is always airtightly sealed, and
A second sealing member made of an O-ring is installed in an annular groove provided on the outer periphery of the inner cylinder, located at a portion fitted into the outer cylinder, and the sealing member forms a seal between the inner cylinder and the outer cylinder. In addition, a third sealing member made of an O-ring is attached to an annular groove provided on the outer periphery of the tip side of the outer cylinder, and this sealing member seals the connection between the outer cylinder and the cap. It seals the space between them.

As a result, when the cap is inserted, the
The interior of the cap is defined as a sealed space by the third sealing member, and even if the object to be dispensed contains a large amount of volatile components, evaporation of the volatile components is prevented.

At this time, since an O-ring is used as the first sealing member, sliding resistance due to contact with the inner cylinder is stabilized when the inner plate is fed out and put in, and the second sealing member is also Since the O-ring is used, sliding torque can be stabilized when the outer cylinder and the inner cylinder rotate relative to each other.

〔Example〕

Hereinafter, a lipstick dispensing container according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.

In the figure, reference numeral 1 denotes an outer cylinder for rotational operation, and the inner periphery of the proximal end of the outer cylinder 1 is provided with a first step part 1A and a second step part 1B, which are expanded in diameter in two stages. A small diameter portion 1C is provided on the tip side, into which a cap 10 (described later) is removably fitted, and a substantially U-shaped annular groove 1D is provided on the outer peripheral surface of the small diameter portion 1C, into which an O-ring 11 (described later) is fitted. It is being

Reference numeral 2 denotes a rotating shaft fixed to the base end side of the outer cylinder 1 so as to rotate integrally with the outer cylinder 1;
are a first fitting part 2A and a second fitting part 2A, which are fitted into the first step part 1A and the second step part 1B of the outer cylinder 1, respectively, and are fixed to the outer cylinder 1 by means such as ultrasonic welding or adhesion.
A fitting part 2B, a reduced diameter part 2C that protrudes in the axial direction from the first fitting part 2A, and a reduced diameter part 2C that is located above the reduced diameter part 2C and rotates on the inner periphery of the lower end side of the inner cylinder 4, which will be described later. A sliding part 2D that can be fitted together, and a shaft part 2E that extends in the axial direction from the sliding part 2D and has a smaller diameter than the sliding part 2D.
and a male screw 2F provided on the outer periphery of the shaft portion 2E, and the male screw 2F is threadedly engaged with a female thread 5E of the inner plate 5, which will be described later, to cause the inner plate 5 to slide in the axial direction. It's summery. On the other hand, a boring 3 is provided inside the rotary shaft 2 to reduce the weight of the rotary shaft 2.

Next, reference numeral 4 denotes an inner cylinder which is fitted into the outer cylinder 1 so as to be relatively rotatable, and whose distal end side protrudes in the axial direction from the distal end of the outer cylinder 1 and extends into a cap 10 which will be described later. An annular portion 4A that protrudes radially outward in a substantially U-shape is provided at the lower end of the annular portion 4A.
fits into the first step portion 1A of the outer cylinder 1 and abuts on the lower side with the first fitting portion 2A of the rotating shaft 2,
The inner cylinder 4 is positioned in the axial direction.
Furthermore, engagement protrusions 4 are located at an axially intermediate portion of the inner cylinder 4 so as to oppose each other and extend radially inward.
B, 4B are provided in a protruding manner, and each of the engaging protrusions 4B punches a small hole 4C, 4C radially inward in the peripheral wall of the inner cylinder 4, and the circumference of each small hole 4C is inwardly punched. It is formed by bending it. On the other hand, the inner cylinder 4
The outer circumferential surface of the part fitted into the outer cylinder 1,
For example, a substantially U-shaped annular groove 4D is provided above each engagement protrusion 4B, into which an O-ring 9 (to be described later) is attached, and a distal end surface 4E is formed to be inclined downward.

Reference numeral 5 denotes a cylindrical inner tray that is slidably inserted into the inner cylinder 4 and stores a lipstick 6 as an object to be dispensed. A partition plate 5A is provided, and a lipstick 6 is placed on the top of the partition plate 5A.
A storage section 5B is defined. Further, in the peripheral wall of the inner plate 5, oval-shaped vertical engagement grooves 5C, 5C are located below the partition plate 5A and extend in the axial direction.
The engagement grooves 5C face each other in the radial direction, and by engaging with the engagement protrusions 4B of the inner cylinder 4, the rotation of the inner plate 5 is restricted. ing. Further, a cut groove 5 extending in the axial direction is provided between the lower end of each engagement groove 5C and the lower end surface of the inner plate 5.
D, 5D are provided, and a female thread 5E screwed into the male thread 2F of the rotating shaft 2 is provided on the inner circumferential surface of the inner plate 5 corresponding to each of the cut grooves 5D. Note that each cut groove 5D is provided for convenience of molding.
It is not necessarily necessary to provide it. Here, since the internal thread 5E of the inner plate 5 is screwed together with the male thread 2F of the rotating shaft 2, when the rotating shaft 2 is rotated, the inner plate 5 slides in the inner cylinder 4 in the axial direction. Becomes displaced, lipstick 6
is fed out or drawn in from the inner cylinder 4.

7 is a substantially U-shaped annular groove located on the radially outer side of the partition plate 5A and provided on the peripheral wall of the inner plate 5; 8 is an O-ring as a first sealing member installed in the annular groove 7; The O-ring 8 is connected to the inner cylinder 4 and the inner plate 5.
In addition to providing an airtight seal between the inner cylinder 4 and the inner plate 5, variations in diameter between the inner cylinder 4 and the inner plate 5 are absorbed, and the axial sliding movement of the inner plate 5 is made smooth. Also,
Reference numeral 9 denotes an O-ring as a second sealing member installed in the annular groove 4D of the inner cylinder 4. The O-ring 9 airtightly seals between the inner cylinder 4 and the outer cylinder 1, and 4 and the outer cylinder 1 are absorbed, and rotation of the inner cylinder 4 with respect to the outer cylinder 1 is made smooth.

Furthermore, 10 is a bottomed cylindrical cap that is attached to the small diameter portion 1C of the outer cylinder 1 so as to cover the distal end side of the inner cylinder 4, and the inner periphery of the opening 10A of the cap 10 is The opening 10A is removably fitted into the small diameter portion 1C. 11 is the outer cylinder 1
The O-ring as a third sealing member installed in the annular groove 1D of the O-ring 11 absorbs the variation in diameter between the small-diameter portion 1C of the outer cylinder 1 of the O-ring 11 and the opening 10A of the cap 10. Small diameter part 1C and opening 1
It is designed to create an airtight seal between it and 0A.

Next, the operation of the lipstick dispensing container configured as described above will be explained.

First, when the cap 10 is removed and the outer cylinder 1 and the inner cylinder 4 are rotated relative to each other, the rotating shaft 2 rotates integrally with the outer cylinder 1, and the inner cylinder screwed into the external thread 2F of the rotating shaft 2 rotates integrally with the outer cylinder 1. The female screw 5E of the countersunk 5 is guided by the thread surface of the male screw 2F and is displaced in the axial direction. Therefore, the inner plate 5 is slidably displaced in the axial direction within the inner cylinder 4, and the lipstick 6 stored in the storage portion 5B of the inner cylinder 5 advances and retreats from the tip surface 4E of the inner cylinder 4. is drawn out from the inner cylinder 4 or fed into the inner cylinder 4.

Then, as shown in FIG. 1, after putting the lipstick 6 into the inner cylinder 4, insert the opening 10A of the cap 10 into the tip side of the inner cylinder 4, and fit it into the small diameter part 1C of the outer cylinder 1. , O mounted in the annular groove 1D of the outer cylinder 1
The ring 11 connects the small diameter portion 1C of the outer cylinder 1 and the cap 1.
0 and the opening 10A is airtightly sealed. On the other hand, the outer cylinder 1 and the inner cylinder 4 are airtightly sealed by an O-ring 9, and the inner cylinder 4 and the inner plate 5 are airtightly sealed by an O-ring 8. A sealed space 12 is defined between the inner plate 5 and the cap 10 via the inner cylinder 4.

Therefore, even if the lipstick 6 stored in the storage section 5B of the inner tray 5 contains a relatively large amount of volatile components, it will be confined within the sealed space 12, so that the volatile components will be contained. Evaporation is prevented, the meat does not become thin or the quality deteriorates, and the quality can be maintained at a good level for a long period of time.

In particular, in this embodiment, an O-ring 8 is attached to the inner plate 5 at the partition plate position 5A of the inner plate 5, and the O-ring 8 is in airtight contact with the inner cylinder 4. Since the sealed space 12 is defined in the inner cylinder 4 together with the partition plate 5A, the sealed space 12
can be made as small as possible, and evaporation of volatile components contained in the lipstick 6 can be minimized. Further, when the lipstick 6 becomes smaller as the lipstick 6 is used, if the inner plate 5 is slid upward in the axial direction within the inner cylinder 4, the position of the O-ring 8 is also displaced upward. The closed space can be made smaller at any time, and volatile components in the lipstick 6 can be prevented from evaporating to the end.

Furthermore, since the O-ring 8 is used as the first sealing member, when the inner plate 5 is fed out and put in, the sliding resistance due to contact with the inner cylinder 4 is only the O-ring 8, which stabilizes the sliding resistance. It is possible to aim for In addition, since the second seal member also uses the O-ring 9, when the outer cylinder 1 and the inner cylinder 4 are rotated relative to each other, the sliding resistance due to contact between the two is only the O-ring 9, which stabilizes the sliding torque. It becomes possible to aim for.

In the above embodiment, the female thread 5E is provided on the inner periphery of the lower end of the inner plate 5, but instead of this, the male thread 5E of the rotating shaft 2 is provided on the inner periphery of the lower end of the inner plate 5.
A protrusion that engages with F may be provided, and the protrusion may be guided by the male screw 2F and displaced in the axial direction, thereby slidingly displacing the inner plate 5 in the axial direction.

Further, in the embodiment described above, the tip surface 4 of the inner cylinder 4 was described as being inclined downward, but the tip surface does not necessarily have to be inclined, and may be a surface perpendicular to the axis of the inner cylinder 4. may be formed.

Furthermore, although the above embodiments have been described using a dispensing container for lipstick as an example, the present invention is not limited thereto, and may include a dispensing container for stick-shaped cosmetics such as lip balm or hair conditioner, or a dispensing container for purposes other than cosmetics. For example, it can also be applied to containers for dispensing glue, felt pens, and the like.

[Effect of idea]

As detailed above, according to the present invention, in order to seal between the inner plate and the inner cylinder, the first sealing member made of an O-ring is fitted into the annular groove provided on the outer periphery of the inner plate, and To seal between the inner cylinder and outer cylinder,
A second sealing member made of an O-ring is fitted into an annular groove provided on the outer periphery of the inner cylinder, and a third sealing member made of an O-ring is fitted to seal between the outer cylinder and the cap.
Since the sealing member is fitted into the annular groove provided on the outer periphery of the tip of the outer cylinder, the first to third sealing members can connect the inner plate and the cap via the inner cylinder. A completely small sealed space can be formed, and the object to be fed out stored in the inner tray can be contained in this sealed space. Therefore, when the object to be fed out contains volatile components, the volatile components can be prevented from evaporating, and the quality of the object to be fed out can be maintained at a good quality for a long period of time. Moreover, since an O-ring is used as the first sealing member, only the O-ring comes into contact with the inner cylinder, so that sliding resistance can be stabilized, and the second sealing member O-rings are also used, so when rotating the outer cylinder and inner cylinder relative to each other,
The sliding resistance due to contact between the two is only caused by the O-ring, and the sliding torque can be stabilized.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a dispensing container according to an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of the cap shown in FIG. 1, and FIG. A perspective view showing the cylinder partially cut away, Figure 4 is the first
Part 5 is a perspective view showing the inner cylinder shown in the figure, partially cut away.
The figure is a partially cutaway perspective view of the inner plate shown in Fig. 1, and Fig. 6 is a perspective view of the O-ring shown in Fig. 1.
FIG. 7 is a perspective view of the rotating shaft shown in FIG. 1. 1... Outer cylinder, 1D... Annular groove, 2... Rotating shaft,
2A...First fitting part, 2B...Second fitting part, 2E
...Shaft, 2F...Male thread, 4...Inner cylinder, 4B...
...Engagement protrusion, 5...Inner plate, 5C...Engagement groove, 5E
... Female thread, 6 ... Lipstick, 7 ... Annular groove, 8 ...
...O-ring, 10...cap, 10A...opening, 11...O-ring.

Claims (1)

[Scope of utility model registration request] an outer cylinder for rotational operation; and a rotating shaft fixed to the proximal end of the outer cylinder so as to rotate integrally with the outer cylinder, extending in the axial direction within the outer cylinder, and having a thread formed on the outer periphery. an inner cylinder that is relatively rotatably fitted into the outer cylinder and has a distal end protruding from the distal end of the outer cylinder; and an engaging protrusion that protrudes radially inward on the inner circumferential surface of the inner cylinder. , an inner tray for storing an object to be dispensed that is slidably inserted into the inner cylinder and is slidably displaced in the axial direction by engaging with the male thread of the rotating shaft; and the inner tray extends in the axial direction. a vertically long engagement groove provided on the inner plate to engage with the engagement protrusion and restrict rotation of the inner plate; In a dispensing container comprising a bottomed cylindrical cap attached to the distal end side of the cylinder, an annular groove provided on the outer periphery of the inner plate located closer to the distal end in the axial direction than the engagement groove; , for sealing between the inner plate and the inner cylinder, a first sealing member consisting of an O-ring mounted in the annular groove; In order to seal between the annular groove provided on the outer periphery of the inner cylinder and the outer cylinder, a second sealing member consisting of an O-ring attached to the annular groove, and a second seal member formed on the outer periphery of the distal end side of the outer cylinder. A dispensing container comprising an annular groove provided therein and a third sealing member formed of an O-ring attached to the annular groove for sealing between the outer tube and the cap.