JPH07327732A - Cartridge type cosmetic - Google Patents

Abstract

PURPOSE:To provide cartridge type cosmetic having a less number of component parts, which can pay out a rod-like cosmetic core. CONSTITUTION:A cartridge type cosmetic 1 is composed of a cartridge cylinder 1, a body 20. a core chuck 30, a push rod 40 and a spring 50. The cartridge cylinder 10 has a through hole 11 for storing therein a cosmetic core 2, and an axial groove is formed in the peripheral wall of the through hole. The cosmetic rod 2 is stored in front of the core chuck, and a protrusion which can slid in the groove within the through hole so as to prevent rotation of the core chuck about its axis while allowing the same to move in the axial direction, is formed in the middle part of the chuck. Further, the chuck 30 is formed in its rear part with a hole into which the front part of a push rod 40 can be inserted. The hole and the front end part of the push rod have a polygonal cross-sectional shape so that they can not be rotated, relative to each other, and they are integrally incorporated with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type cosmetic product such as an eyeliner, an eyebrow, a lip liner, an eye shadow, etc., and particularly, it is easy to put on and take off with a minimum of parts, and a stick-shaped cosmetic core can be easily drawn out and stored. Cartridge type cosmetics.

[0002]

2. Description of the Related Art Cartridge type cosmetics for eyeliner, eyebrow, lip liner, eye shadow, etc. consist of a cartridge barrel and a tubular body that houses the rear end of the cartridge barrel. A rod-shaped decorative core is housed in the cartridge cylinder by a core chuck so as to be freely drawn out, and a push rod for paying out the bar-shaped decorative core is rotatably housed in the main body.

In such a cartridge type makeup,
In order to rotate the main body and feed the cosmetic core, it is necessary to prevent the push rod from rotating relative to the main body, but conventionally, a groove pipe was used to engage the push rod in a non-rotatable manner from the main body. The exposed cylindrical body was used, and the push rod was extended by pushing the cylindrical body and rotating the main body to extend the makeup core (Japanese Utility Model Publication No. 58-25942, Japanese Utility Model Publication No. 62-3).
No. 2483). In other conventional cosmetics, a tail plug with a hole with a polygonal cross section is fixed in the cartridge barrel, a push rod with the same polygonal cross section as that hole is inserted, and a cartridge barrel is used to rotate the push rod. It was made impossible, and the push rod was extended by rotating the main body to extend the cosmetic core (Japanese Utility Model Publication No. 58-9535).

Further, in order to return the makeup core that has been drawn out to the inside, in the conventional cosmetics, the lead chuck and the push rod are engaged, and the makeup lead is returned together with the push rod being returned by reversing the main body. In other conventional cosmetics, a spring is arranged in the cartridge cylinder so that the cosmetic core is always housed inside, and the cosmetic core returns to the inside of the cartridge cylinder by the force of the spring when the push rod is returned. (Jpn. Pat. Appln. KOKAI No. 58-9535).

Further, in the conventional cartridge type cosmetics, a leaf spring is used to detachably mount the cartridge cylinder to the main body (for example, Jikho Sho 58-).
(25942 publication)

The conventional cosmetics as described above have the following drawbacks.

The use of the groove pipe and the cylinder not only increases the number of parts, but also increases the machining accuracy of the parts in order to mount them in a narrow area. vice versa,
If an attempt is made to form a space for a groove pipe or a cylinder in the main body, the main body itself becomes thick, and the cosmetics such as eyeliner and eyebrow have a poor appearance and are inconvenient to use.

Although the above problem is solved by mounting the tail plug on the cartridge cylinder without using the groove pipe and the cylinder, the area in which the lead chuck can move is narrowed, and Limit the amount of makeup core that can be stored in.

The cartridge type cosmetic product for engaging the lead chuck and the push rod requires another part for the engagement, resulting in an increase in manufacturing cost. Using a spring to always store the cosmetic core in the cartridge cylinder eliminates the need for parts for this engagement.
A new means for fixing the spring is needed.

Further, although the use of the leaf spring is effective when the cartridge barrel is inserted into the barrel body, in the cartridge type cosmetic in which the main body is rotated with the cartridge barrel, the leaf spring damages the cartridge barrel, Not available.

Therefore, an object of the present invention is to provide a groove pipe,
Eliminating the cylindrical body and the engaging parts between the core chuck and the push rod,
It is an object of the present invention to provide a cartridge-type cosmetic product that can dispense a stick-shaped cosmetic core with a small number of parts.

Another object of the present invention is to provide the above-mentioned cartridge-type cosmetic product capable of preventing the push-bar from coming off without providing a separate push-bar retaining means.

A further object of the present invention is to provide the above-mentioned cartridge type cosmetic product in which the lead chuck and the push rod are integrally engaged with each other without providing any special means.

Still another object of the present invention is to provide the above-mentioned cartridge-type cosmetic product in which the cartridge cylinder and the main body can be easily attached and detached and can be rotated relative to each other.

Still another object of the present invention is to provide the above-mentioned cartridge-type cosmetic product in which failure due to excessive rotation of the push rod is prevented.

[0015]

The cartridge type cosmetic product of the present invention for achieving the above object comprises a cartridge tube having a through hole for accommodating a stick-shaped cosmetic core so as to be able to be drawn out.
With a female screw spiral on the inner circumference, a cylindrical main body for storing the rear part of the cartridge relative to the axis and detachably housed, and the rear end of the stick-shaped cosmetic core is housed in the front, and the axis line in the cartridge cylinder Direction, and has a core chuck that is housed so as not to rotate relative to the cartridge cylinder around the axis, and a male screw spiral that engages with the female screw spiral of the main body, and the tip is relative to the rear end of the core chuck with respect to the axis. A push rod that is non-rotatably engaged and that is housed in the main body so that it can be freely extended, and a spring that engages the leading end with the lead chuck, the rear end with the cartridge barrel, and holds the lead chuck in the cartridge barrel. Consists of.

[0016] In this cosmetic product, at least two portions are provided at the rear end of the push rod having a projection radially outward at the tip thereof, while the extension of the push rod is housed behind the female screw spiral of the main body. By providing a hole and an overhanging protrusion that contacts the extension near the rear end of the female screw spiral, the axis of the push rod and the axis of the main body can be made to coincide, and at the same time, the overhanging protrusion and the protrusion of the extension can A retaining means can be configured.

In another cartridge type cosmetic of the present invention, instead of the main body of the cosmetic, there is provided a main body having an elastic piece for preventing the push rod from coming off, which is formed by forming a notch in the peripheral wall in front of the female screw spiral. When the main body is inserted into the outer cylinder to which the main body is inserted and fixed, the retainer elastic piece has a bulge projecting from the outer periphery of the main body outside the tip of the main body. When inserted in the cylinder, the raised portion contacts the inner wall of the outer cylinder, the tip of the elastic piece bends in the axial direction, and is located between the outer diameter of the push rod and the mountain diameter of the male screw spiral.

In this cosmetic, a cylindrical body having an inner diameter larger than the root diameter of the female screw spiral is further provided at the rear end of the main body,
It may include a clutch mechanism having a diameter substantially the same as the inner diameter of the tubular body and movable in the axial direction within the tubular body, and a spring for pushing the packing material between the outer end of the tubular body. it can.

Further, in order to generate frictional resistance, an O-ring having an outer diameter slightly larger than the thread diameter of the female screw spiral of the main body may be provided in the vicinity of the male screw spiral of the push rod around the push rod.

In any of the above cosmetics, since the core chuck and the push rod engage with each other such that they cannot rotate relative to each other, the rear end of the core chuck has a hole having a non-circular cross section and extending in the axial direction.
At least the tip of the push rod may have a non-circular cross section that aligns with the hole in the lead chuck. The engagement between the core chuck and the push rod can also be achieved by having a meshing clutch that meshes with each other.

Here, by engaging an annular groove provided on the outer periphery of the rear end of the cartridge barrel with an inner protrusion of an elastic piece formed on the peripheral wall near the front end of the main body, the rear portion of the cartridge is engaged. Can be detachably installed in the main body and can be stored so as to be rotatable relative to the axis.

If necessary, an applicator can be detachably provided at the rear end of the main body.

[0023]

In the present cartridge type cosmetic, the lead chuck and the lead which are housed in the cartridge cylinder so as to be movable in the axial direction and non-rotatable relative to each other around the axis, and which are housed in the main body so that they can be extended When the cartridge cylinder is pressed and the main body is rotated by engaging the chuck with the chuck so as not to rotate relative to the axis, the push rod is drawn out, and the cosmetic core housed in the cartridge cylinder is drawn out through the lead chuck.

Since a force is applied to the lead chuck by a spring so that the lead chuck is always housed in the cartridge cylinder,
The engagement between the lead chuck and the push rod is not released until the cartridge cylinder is removed from the main body.

In addition, the annular groove provided on the outer periphery of the rear end of the cartridge cylinder and the inner protrusion formed on the elastic piece provided on the peripheral wall near the front end of the main body are fitted to each other, whereby the cartridge The rear part is detachably housed in the main body and is rotatable relative to the axis.

In a cartridge type cosmetic product incorporating a main body having an elastic piece for preventing the push rod from coming off, the elastic piece bends in the axial direction so that the tip and the male screw spiral of the push rod can come into contact with each other, and the push rod moves forward. And never fall out.

The clutch mechanism incorporated in the cartridge-type cosmetic product keeps the push rod and the core chuck engaged while making the push rod idle when the push rod is excessively returned.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a vertical cross section of a cartridge type cosmetic 1 of the present invention, FIG. 1a shows a cross section in a state where a stick-shaped cosmetic core is housed inside, and FIG. 1b shows a state where a stick-shaped cosmetic core is extended. The cross section of is shown.

As shown in FIG. 1, a cartridge cosmetic 1 of the present invention comprises a cartridge cylinder 10 injection-molded with a resin, preferably ABS resin, and a rear end of the cartridge cylinder made of the same injection-molded resin. Main body 20 for relatively rotatable about the axis and detachably stored, a core chuck 30 for storing the rear end of the stick-shaped decorative core at the tip and stored in the cartridge cylinder 10, and a retractable storage for the main body. And a spring 50 for pressing the lead chuck 30 backward.

FIG. 2a shows details of the cartridge barrel 10. The cartridge cylinder 10 is a cylinder body having a through hole 11 for accommodating the cosmetic core 2 (FIG. 1) by the core chuck 30 so that the cosmetic core 2 can be retracted and retracted. On the peripheral wall of the through-hole 11, four grooves 12 are formed at equal intervals along the axial direction so that the core chuck described below does not rotate relative to the axial line (see FIG. 3), and further at the rear end. Is formed with an undercut annular groove 13 for engagement with a spring as will be described later.

The outer periphery of the front end of the cartridge cylinder 10 is tapered toward the front, and the rear is slightly smaller in diameter so that the outer diameter of the tapered portion and the outer shape of the main body match when housed in the main body 20. Has a cylindrical portion 14 A circular peripheral groove 15 is formed along the periphery of the cylindrical portion 14.

FIG. 2b shows details of the body 20. Body 20
Is a front hole 21 for accommodating the cylindrical portion 14 of the cartridge cylinder 10 in the front, and an intermediate hole 2 having a female screw spiral 22 'on the inner circumference.
2 and a rear hole 23. A protruding protrusion 24 protruding inward is formed between the female screw helix 22 ′ and the rear hole 23.

On the peripheral wall of the front hole 21, a pair of elastic pieces 26 facing each other are formed by making a notch 25 having a "U" shape. One end of the elastic piece 26 is continuous with the wall of the main body 10, and since the main body 20 is made of resin as described above, it becomes like a shoulder holding spring. The elastic piece 26
A protrusion 26 'that fits into the peripheral groove 15 of the cartridge cylinder 10 is provided inside the tip of the cartridge (see FIG. 1).

The cylindrical portion 14 of the cartridge cylinder 10 is attached to the main body 2
When the front hole 21 of 0 is inserted, the protrusion 26 'is
It is caught on the tip of the elastic piece, but if you push it in further, the elastic piece 2
Since 6 spreads out, the cylindrical part 14 can be inserted into the front hole 21. Peripheral groove 1 of the cartridge cylinder 10
When the protrusion 26 'is fitted in the cartridge 5, the cartridge cylinder 10 can rotate relative to the main body about the axis, while
The cartridge cylinder 10 does not come off from the main body 20.
When the main body 20 is fixed and the cartridge cylinder 10 is strongly pulled, the elastic piece 26 expands outward, the engagement between the protrusion 26 'and the peripheral groove 15 is released, and the cartridge cylinder 10 can be removed.

Thus, the cartridge cylinder 1 is formed by the elastic piece.
0 is detachably accommodated in the main body 20 and is relatively rotatable with respect to the axis.

In the embodiment, a pair of elastic pieces are provided, but the invention is not limited to this. Even with one elastic piece, the cartridge cylinder can be detachably and accommodated in relative rotation, but since the axis of the cartridge cylinder and the axis of the main body are easily displaced, it is desirable that the elastic piece is two or more. However, if the number of elastic pieces is increased, the elastic pieces are formed by making cuts in the peripheral wall of the front hole 21, so that the strength of the tip of the main body is reduced. Therefore, 2 to 4 elastic pieces are preferable. Is.

Further, although the elastic piece is formed by forming the notch in a "U" shape, the elastic piece can also be formed by an inverted V shape or an inverted U shape.

FIG. 4a shows a longitudinal section of the lead chuck 30.
The lead chuck 30 is a tubular body, and four protrusions 31 that can slide in the groove 12 of the cartridge barrel 10 are projected around the lead chuck 30 (see FIG. 3). Since the groove 12 extends in the axial direction, the core chuck 30 is movable in the axial direction and is not rotatable around the axial line in the cartridge cylinder 10.

Groove 12 of cartridge cylinder and core chuck 30
The protrusion 31 is a preferred specific example for making the core chuck non-rotatable around the axis in the cartridge cylinder, but generally, the through hole of the cartridge cylinder has a non-circular cross section.
This object can be achieved by making the cross section of the lead chuck non-circular to match its through hole. As the non-circular cross section, for example, the cross section of the through hole or the core chuck may be an ellipse or an ellipse. Furthermore, the cross section may be triangular, quadrangular, pentagonal, or polygonal such as laurel. However, for example, in a cross section with many corners such as an octagon, the shape becomes close to a circle, and the function of disabling rotation is deteriorated. Further, although the function of making the non-rotatable cross section such as a triangle non-rotatable is enhanced, the through hole becomes small and the amount of the stick-shaped decorative core that can be stored is reduced.

In the illustrated example, four grooves are provided to prevent rotation, but at least one groove may be provided corresponding to the protrusion 3. However, an excessive force is applied to the core chuck in one groove, and too many grooves cause a manufacturing problem (manufacturing becomes difficult) and the strength of the groove is weakened. Therefore, the groove is 2 to 6
Individuals are desirable.

For this reason, the shape of the cross section should be determined in consideration of the shape and strength of the cartridge cylinder, the amount of the cosmetic core, the strength of the core chuck, and the like.

The lead chuck 30 also has a front hole 32 for accommodating the rear end of the decorative core 2, an intermediate hole 33 having a hexagonal cross section into which the tip of a push rod 40 described below is inserted, and a cross section continuous to this. It consists of a circular rear hole 34.

Further, the core chuck 30 is
As will be described below, a groove 35 is formed in which the spring can be engaged.

FIG. 4b shows a side view of the push rod 40. Push rod 4
Reference numeral 0 denotes a rod portion 41 having a circular cross section which is aligned with the rear hole 34 of the lead chuck 30, a male screw spiral 42 screwed to the female screw spiral 22 ′ of the main body 20 provided behind the rod part 41, and further extending rearward of the spiral 42. And the extended portion 43.

The tip 41 'of the rod portion 41 is attached to the lead chuck 3
1 has a hexagonal cross section that matches the intermediate hole 33 of the core chuck 1.
When it is inserted into 3, the two are integrated and the relative rotation is impossible.

In order for the core chuck 30 and the push rod 40 to be easily attached and detached and to be integrated with each other, the cross section of the tip 41 '(similarly to the intermediate hole 33) does not have to be hexagonal. Generally, like the relationship between the cartridge cylinder and the core chuck,
It suffices if the cross sections of both are non-circular. For example, the cross section may be an ellipse or an ellipse, or may be a polygon such as a triangle, a quadrangle, a pentagon, or a laurel.

In addition to such a polygonal cross section, as shown in FIG. 4C, a meshing clutch 301 is formed at the rear end of the core chuck 300, and the meshing clutch 301 is formed at the tip of the push rod 400. The above object can be achieved even if the engaging clutch 401 is formed. In order to make engagement by the clutch more reliable, one engagement clutch may be provided with a projection along the axis and the other engagement clutch may be provided with a hole into which the projection can be inserted (shown by a broken line in the drawing).

Since the lead chuck is integrated with the push rod by inserting the tip 44 'of the push rod into the intermediate hole 33, the rear hole 34 is not essential.

Behind the extension portion 43 of the push rod 40, at least two extension pieces 44 extend, and a projection 44 'is formed on the outside of the tip of the extension piece 44. The size of the protrusion 44 'is determined so that the circumscribing circle is about the same as or slightly larger than the inner diameter of the rear hole 23 of the main body 20.

When the push rod 40 is inserted into the main body 20 and rotated, the protrusion 44 'engages with the protrusion 24 of the main body 20, but the extension piece 44 contracts toward the axis, so that the push rod can be pushed inward. it can. When the push rod 40 is further rotated into the main body 20 and pushed in, the male screw spiral 4 of the push rod 40 is pushed.
2 engages with the female thread helix 22 'of the body 20 and the push rod 40 can be advanced further in and housed within the body 20 (see FIG. 1).

At this time, the projection 24 of the rear hole 23 is formed by the push rod 4
Since the protrusion 44 'of the push rod 40 is in contact with the inner peripheral wall of the rear hole 23, a resistance force against rotation can be generated therebetween.

Further, the projection 24 of the main body 20 and the projection 44 'of the push rod 40 constitute a mechanism for preventing the push rod 40 from coming off the main body 20. That is, when the push rod 40 is extended, the protrusion 44 'is not caught by the protrusion 24 and does not accidentally fall out.

As shown in FIG. 1, the protrusion 31 of the lead chuck 30 is arranged in the cartridge barrel 10 so as to slide in the groove in the cartridge barrel 10. The rear end of the cosmetic container 2 is housed so that the cosmetic core 2 is located inside the cartridge cylinder 10.

One end of the spring 50 engages with the groove 35 of the lead chuck 30, and the other end thereof has the annular groove 1 of the cartridge barrel 10.
Engage with 3. Therefore, the spring 50 prevents the lead chuck 30, that is, the decorative lead 2, from slipping forward or backward.

When the cylindrical portion 14 of the cartridge cylinder 10 in which the cosmetic core 2 is set in this way is inserted into the front hole 21 of the main body 20, the elastic piece 26 expands outward, and the projection 2
6 ′ fits into the peripheral groove 15 of the cylindrical part 14. By this fitting, the mounting of the cartridge cylinder 10 on the main body 20 is completed.

At this time, the push rod 4 housed in the main body 20.
The leading end 41 ′ of 0 advances to the rear hole 34 of the lead chuck 30 and then to the intermediate hole 35, so that the lead chuck 30 and the push rod 40 become non-rotatably integrated.

As described above, the core chuck 30 is movable in the axial direction with respect to the cartridge cylinder 10,
Since the relative rotation is impossible, when the cartridge barrel 10 is fixed, the push rod 40 can also move in the axial direction, but the relative rotation becomes impossible. Therefore,
With the cartridge tube 10 and rotating the main body 20,
The female screw spiral 22 'of the main body 20 extends the push rod 40. The push rod 40 resists the force of the spring 50 and pushes the lead chuck 30.
Is pushed forward, and the makeup core 2 projects from the tip of the cartridge cylinder 10.

Since the spring 50 always pushes the lead chuck 30 rearward, the engagement between the lead chuck 30 and the push rod 40 is not released.

When the main body 20 is inverted, the push rod 40 is returned to the main body 20, and the lead chuck 30 moves the spring 50.
Although it is integrated with the push rod 40 by the force of, it moves backward and the cosmetic core 2 is returned into the cartridge cylinder 10.

FIG. 5 is a partial sectional view showing a cartridge type cosmetic product according to another embodiment of the present invention. The difference between the cartridge type cosmetic of this example and the cartridge type cosmetic of FIG. 1 is basically that a metal main body cap 28 is fixed to the main body,
The point is that the cartridge cylinder is covered with a metal cap 16. However, in order to prevent the cap 16 from being accidentally removed from the cartridge cylinder 10, a linear protrusion 17 is further provided on the outer periphery of the cartridge cylinder. But the cap 16
If the cartridge cylinder 10 and the cartridge tube 10 are frictionally engaged with each other to such an extent that they cannot be accidentally disengaged, such a linear protrusion is unnecessary.

In the embodiment shown in FIG. 1, in order to move the push rod 40 on the axis and to give a frictional resistance to the pushing out of the push rod, an extension of a length approximately equal to the length of the female screw spiral 22 'is provided behind the push rod 40. A portion 43 is provided, and a rear hole 22 for accommodating the extension 43 is further provided at the rear of the main body 20 so that the protrusion 44 ′ and the rear hole 22 are in contact with each other. Since the length by which the makeup center can be extended is approximately equal to the length of the female screw spiral 22 ', in the embodiment of FIG. 1, the longer the makeup center, the longer the total length of the cartridge type cosmetic product.

The embodiment shown in FIG. 6 is an example in which this point is improved.
6A shows a side view of a main body 60 of another embodiment, FIG. 6B shows a sectional view of the main body 60 taken along line bb of FIG. 6A, and FIG. ) Shows a cross-sectional view of a cartridge type cosmetic in which the main body 60 is incorporated and an applicator is further incorporated. Since the cartridge cylinder of this embodiment has the same structure as that of the embodiment of FIG. 1, the same reference numeral as that of FIG. 2A is given (however, “′” is additionally shown).

As shown in FIG. 6B, the main body 60 has a front hole 61 for accommodating the cylindrical portion 14 'of the cartridge cylinder 10' in the front, and a rear hole 62 having a female screw spiral 62 'on the inner periphery in the rear. Have. As shown in FIG. 6A, a small diameter portion 63 having a smaller outer diameter is formed in front of the main body 60, and the elastic piece 2 of the main body 20 of the embodiment shown in FIG. 2 is formed in the small diameter portion 63.
As shown in FIG. 6, the first elastic piece 66 is formed by making the notch 65 in the “U” shape. Elastic piece 6
By fitting the protrusion 66 'provided on the inner side of the tip of the cartridge 6 with the peripheral groove 15' of the cartridge barrel 10 ', the cartridge barrel 10' is housed in the main body 60 so as to be rotatable relative to the axis (FIG. 6 (c)). )).

Further, a second elastic piece 68 is formed by making a U-shaped notch 67 having a widened end in the front peripheral wall of the female screw spiral 62 'of the main body 60.
On the outer side of the tip of the elastic piece 68, the raised portion 6
9 is formed, and a projection 69 'is formed inside thereof. Similarly to the first elastic piece 66, the second elastic piece 68 also functions as a cantilever spring. In this way, the second elastic piece 6
8 has a widened U-shape, as described below, because the second elastic piece 68 and the male screw spiral 42 'of the push rod 40' with the tip projection 69 'extended. This is because the push rod 40 'can be reliably prevented from coming off by coming into contact with each other. The elastic piece is not limited to this shape as long as this object can be achieved. In this embodiment, a pair of second elastic pieces is formed as a suitable example. However, if the number of elastic pieces is increased, the tip of the elastic piece may have an inverted U shape or an inverted V shape.
It may be a letter shape. On the contrary, if the tip of the elastic piece is made wider,
The number can be reduced.

In this embodiment, a projection 69 'is formed on the tip, but this projection is not necessary if the tip securely engages the male screw spiral 42'.

The rear portion of the main body 60 is narrowed so that the outer diameter of the main body 60 and the outer diameter of the applicator become equal when the applicator cylindrical portion described below is mounted.
Have.

As shown in FIG. 6C, an outer cylinder for exterior,
When the main body 60 having the push rod 40 'inserted therein is mounted and fixed in the outer cylinder 28', which is preferably made of metal, the raised portion 69 of the second elastic piece 68 contacts the inner wall of the outer cylinder 28 '. Then, the second elastic piece 68 bends in the axial direction, and the projection 69 'on the inner end of the elastic piece 68 is located between the outer diameter of the rod portion 41' of the push rod 40 'and the mountain diameter of the male screw spiral 42'. Therefore, when the push rod 40 'is extended, the male screw helix 42' comes into contact with the projection 69 'and the push rod 40' is prevented from being accidentally pulled out.

In this embodiment, the push rod 40 and the body 60 are
In the relative rotation with respect to the male screw helix 42 'and the pressing portion 9 in order to provide frictional resistance to prevent inadvertent extension.
Between 0, an O-ring 91, which is slightly larger than the peak diameter of the female screw spiral 62 ', is arranged. When the push rod 40 'is extended,
Since the O-ring 91 rubs against the crests of the female screw spiral 62 ', frictional resistance occurs.

On the rear portion 65 of the main body 60, an applicator 80 having a brush or the like at the tip (various examples are shown in FIG. 7C).
(Shown in) is detachably attached. Fitted in the rear part 65
It is carried out by fitting the peripheral groove 65 'provided on the outer periphery of the peripheral projection 81 provided on the inner wall of the applicator.

The applicator 80 is covered with a rear cap 82 having an outer diameter that matches the outer shape of the outer cylinder 28 'so as to cover the tip of the applicator 80 when not in use. The cartridge barrel 10 'may also be capped as in FIG.

In the embodiment shown in FIG. 6, when the push rod is excessively retracted, the male screw spiral 42 'becomes the female screw spiral 6'.
In some cases, the feeding mechanism may be broken over 2 ', and the relative non-rotatable engagement between the tip of the push rod and the lead chuck may be broken. An embodiment in which this point is improved is shown in FIG.

FIG. 7 (a) is a vertical sectional view of a cartridge type cosmetic product in which a clutch mechanism is further incorporated in the embodiment shown in FIG. 6, and FIG. 7 (b) shows a main body incorporated in the cosmetic product of FIG. 7 (a). FIG. 7C is a longitudinal sectional view, and FIG.
The example of the applicator utilized for the cosmetics of (a) is shown.

Main body 100 incorporating a clutch mechanism
6 is basically the same as the main body of FIG. 6B, but a rear hole 103 having a diameter slightly larger than the root diameter of the female screw spiral 102 'is extended at the rear end. In the rear hole 103,
A packing material 104 having an outer diameter substantially equal to the diameter of the rear hole is accommodated so as to be movable in the axial direction.
And a spring 106 arranged between the rear end of the applicator 80 mounted on the rear portion 105 of the main body 100 and the spring 106 (FIG. 7A).

When the push rod 40 ″ is pushed out, the packing material 104 of the spring 106 of the clutch mechanism is pressed against the rear end of the female screw spiral 102 ′ by the spring 106. The push rod 40 ″ is pushed back to the rear of the push rod 40 ″. The end contacts the packing material 104. Further, when the push rod 40 ″ is returned, the male screw spiral 42 ″ of the push rod 40 ″ passes through the female screw spiral 102 ′ and moves to the rear hole 103. Rear hole 1
Since 03 has a diameter larger than the mountain diameter of the male screw spiral 42 ″, the push rod 40 ″ idles (in actual operation, the main body idles). Therefore, no force acts on the engaging portion between the push rod and the core chuck, which cannot rotate relative to each other, and the engagement is not broken.

The spring 106 is a packing material 104.
Since the push rod 40 ″ is always pushed forward via the push rod 40 ″, the push rod 40 ″ does not go too far backward and the push rod and the core chuck are not disengaged.

[0076]

The cartridge type cosmetic of the present invention is composed only of the cartridge cylinder, the core chuck, the push rod and the main body, and the spring, and these parts are integrally molded, so that the parts cost and the manufacturing cost are remarkably reduced.

Further, since the lead chuck and the push rod are integrally engaged with each other without providing any special means, the cartridge type cosmetic product is simplified in structure. This facilitates the mounting of the cartridge cylinder on the main body.

Further, since the cartridge type cosmetic is provided with the push-bar retaining means, the push bar does not fall out of the main body before the cartridge cylinder is attached to the main body.

Furthermore, by incorporating the clutch mechanism in the cartridge type cosmetic, even if it is excessively returned, the spiral is not damaged or the engagement between the push rod and the core chuck is not released. Therefore, the useful life of the cartridge type cosmetic can be remarkably extended.

The cartridge type cosmetic of the present invention can be further equipped with an applicator, and can be used for various purposes.

[Brief description of drawings]

FIG. 1a is a longitudinal sectional view of a cartridge type cosmetic product of the present invention in which a cosmetic core is completely retracted, and FIG. 1b is a cartridge type cosmetic product of the present invention in which a cosmetic core is completely protruded. FIG.

FIG. 2a is a partial cross-sectional view of a cartridge tube of the cartridge-type cosmetic of the present invention, and FIG. 2b is a partial cross-sectional view of the main body of the cartridge-type cosmetic of the present invention.

3 shows an enlarged cross section of the cartridge cosmetic along line 3-3 in FIG. 1a.

FIG. 4a is a longitudinal sectional view of a lead chuck incorporated in the cartridge cosmetic of the present invention, FIG. 4b is a side view of a push rod incorporated in the cartridge cosmetic of the present invention, and FIG. 3 shows a lead chuck and pusher tip each having a meshing clutch.

FIG. 5 is a partial cross-sectional view of a cartridge type cosmetic product according to another embodiment of the present invention.

6 (a) is a side view of another main body used in the cartridge-type cosmetics of the present invention, and FIG. 6 (b) is FIG.
FIG. 6A is a vertical cross-sectional view of the main body of FIG. 6A, and FIG. 6C is a vertical cross-sectional view of a cartridge type cosmetic in which another main body and an applicator are incorporated.

FIG. 7 (a) is a vertical cross-sectional view of another cartridge type cosmetic product of the present invention incorporating a clutch mechanism.
7B is a vertical cross-sectional view of a main body incorporated in the cartridge type cosmetic of FIG. 7A, and FIG. 7C illustrates various applicators.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge type cosmetic product 2 Rod-shaped cosmetic core 10 Cartridge cylinder 11 Through hole 12 Groove 13 Annular groove 14 Cylindrical part 15 Perimeter groove 20 Main body 21 Front hole 22 'Female screw spiral 23 Rear hole 24 Protrusion 30 Core chuck 31 Protrusion 32 Front hole 33 Intermediate Hole 34 Rear hole 35 Groove 40 Push rod 41 Rod part 41 'Tip 42 Male screw spiral 43 Extension 44 Extension piece 44' Protrusion 50 Spring

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[Procedure amendment]

[Submission date] August 19, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Figure 3]

[Figure 5]

[Fig. 2]

[Figure 4]

[Figure 6]

[Figure 7]

Claims (14)

[Claims] 1. A cartridge-type cosmetic product, comprising: a cartridge cylinder having a through hole for accommodating a stick-shaped cosmetic core so as to be able to be drawn out; a female thread spiral on an inner periphery, and a rear portion of the cartridge being relatively rotatable with respect to an axis; A tubular main body for detachable storage and a rear end of the stick-shaped cosmetic core are stored in the front, and are movable in the axial direction in the cartridge cylinder and cannot be relatively rotated around the axis with respect to the cartridge cylinder. And a male screw spiral that engages with the female screw spiral of the main body, the tip of which engages with the rear end of the core chuck so as not to rotate relative to the axis, and can be extended into the main body. A push rod to be housed, a tip for engaging the lead chuck, a rear end for engaging the cartridge barrel, and a spline for holding the lead chuck in the cartridge barrel. Cartridge-type cosmetics that consists of a ring,. 2. A cartridge type cosmetic, comprising: a cartridge cylinder having a through hole for accommodating a stick-shaped decorative core so as to be able to be drawn out; a female thread spiral on an inner circumference, and a rear portion of the cartridge being relatively rotatable with respect to an axis; A tubular main body for detachable storage and a rear end of the stick-shaped cosmetic core are stored in the front, and are movable in the axial direction in the cartridge cylinder and cannot be relatively rotated around the axis with respect to the cartridge cylinder. And a male screw spiral that engages with the female screw spiral of the main body, the tip of which engages with the rear end of the core chuck so as not to rotate relative to the axis, and can be extended into the main body. A push rod to be housed, a tip for engaging the lead chuck, a rear end for engaging the cartridge barrel, and a spline for holding the lead chuck in the cartridge barrel. And an outer cylinder into which the main body is inserted and fixed, wherein the main body is formed by forming a notch in the front peripheral wall of the female screw spiral, and a push-bar retaining elastic piece. The retainer elastic piece has a ridge protruding from the outer periphery of the main body on the outer side of its tip, and when the main body is inserted into the outer cylinder, the ridge is an inner wall of the outer cylinder. The cartridge type cosmetic product, characterized in that the tip end of the elastic piece bends in the axial direction and is positioned between the outer diameter of the push rod and the mountain diameter of the male screw spiral. 3. The cartridge type cosmetic product according to claim 1, wherein a rear end of the lead chuck has a hole having a non-circular cross section and extending in an axial direction, and at least a tip of the push rod includes: A cartridge type having a non-circular cross section that matches the hole of the chuck, and by inserting the tip of the push rod into the hole of the chuck, the chuck and the push rod engage with each other such that they cannot rotate relative to each other. Cosmetics. 4. The cartridge type cosmetic according to claim 3, wherein the non-circular cross section of the hole of the lead chuck is polygonal, and the non-circular cross section of the tip of the push rod is the multi-hole of the hole of the lead chuck. Cartridge-type cosmetics characterized by having the same shape as a square shape. 5. The cartridge type cosmetic according to claim 1, wherein a rear end of the lead chuck has a meshing clutch portion, and a tip of the push rod meshes with a meshing clutch portion of the lead chuck. A cartridge type cosmetic having a meshing clutch part, wherein the chucking part of the chuck and the meshing clutch part of the push bar engage with each other so that the chuck and the push bar engage with each other such that they cannot rotate relative to each other. 6. The cartridge type cosmetic according to claim 1 or 2, wherein an annular groove provided on an outer periphery of a rear end of the cartridge barrel and an elastic member formed on a peripheral wall near a tip of the main body. A cartridge-type cosmetic product characterized in that a rear part of the cartridge is housed in the main body so as to be detachable and relatively rotatable with respect to an axis line by engaging with an inner protrusion of the piece. 7. The cartridge type cosmetic according to claim 6, wherein the elastic piece is formed by making a notch in a peripheral wall near the tip of the main body. 8. The cartridge type cosmetic according to claim 1, wherein an extension is further provided at the rear of the push rod, the rear end of the extension is divided into at least two parts, and the tip of the part has a radius. A protrusion outside is provided, a hole for accommodating the extension of the push rod is provided behind the female screw spiral of the main body, and a protruding protrusion for contacting the extension is provided near the rear end of the female screw spiral. The protrusion of the extension and the protrusion of the extension contact the inner wall of the hole for accommodating the extension of the main body, so that the axis of the push rod and the axis of the main body are aligned, A cartridge-type cosmetic product, wherein the protrusion and the protrusion of the extension portion form a retaining means for the push rod. 9. The cartridge type cosmetic according to claim 1, wherein the main body is fixed in a main body cap of an exterior, and the exterior cap is detachably attached to the cartridge cylinder. . 10. The cartridge type cosmetic product according to claim 2, further comprising: a cylindrical body having an inner diameter larger than a root diameter of the female screw helix is provided at a rear end of the main body so as to be substantially equal to an inner diameter of the cylindrical body. With the same diameter,
A cartridge-type cosmetic product, comprising: a clutch mechanism formed by interposing a spring that pushes the packing material between the packing material that is movable in the axial direction in the cylinder and the outer end portion of the cylinder. 11. The cartridge type cosmetic according to claim 2 or 10, wherein an applicator is detachably provided at a rear end of the main body. 12. An O-ring having an outer diameter slightly larger than the thread diameter of the female screw spiral of the main body is provided around the push rod in the vicinity of the male screw spiral of the push rod. Cartridge type cosmetics. 13. The cartridge type cosmetic product according to claim 1, wherein the through hole of the cartridge cylinder has a non-circular cross section, and the core chuck has a non-circular cross section that is aligned with the through hole. A cartridge-type cosmetic product, wherein the cartridge cylinder and the core chuck cannot rotate relative to each other with respect to an axis. 14. The cartridge type cosmetic product according to claim 1, wherein a non-circular cross section of the through hole is defined by a groove extending in the axial direction in a peripheral wall of the through hole, and the core. The non-circular cross-section of the chuck is defined by having a protrusion on its periphery that slides within the groove of the through-hole,
Cartridge-type cosmetics characterized by that.