JP2786592B2 - Cartridge type cosmetic pressurized container - Google Patents

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 pressurized container which presses and extrudes cosmetics by rotation, and is particularly suitable for easy discharge of liquid cosmetics and extrusion of volatile solid cosmetics. And a cartridge-type cosmetic pressurized container. The invention also relates to the cartridge itself used with such a pressurized container.

[0002]

BACKGROUND OF THE INVENTION Liquid cosmetics are discharged in a piston type structure by rotating a container.
3-185485 "Applicator". But,
Since this applicator is not of the cartridge type, the color of the cosmetic cannot be changed for one container, and the container must be discarded after use. In the case of the cartridge type, there is an actual cartridge 3-17781 "cartridge type airtight container". The screw shaft 32 is incorporated in the cartridge, the mechanism is complicated, the number of parts of the cartridge itself is large, and the cost is low. In addition to the drawback, the piston is pushed by a knock-type action, which makes it difficult to adjust the discharge amount and is not suitable for discharging a high-viscosity liquid cosmetic. Furthermore, Japanese Utility Model Publication No. 4-46683 "Container for application" also discloses a cartridge 16 for the liquid cosmetic 29, but this is also a knock type and has the same disadvantages as described above. There are disadvantages such as inconvenience that the cartridge cannot be replaced together with the cartridge, and the mechanism of the main body is extremely complicated and costly.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a cartridge type cosmetic, especially a liquid cosmetic containing an applied body, which is simple in structure, has a small number of parts, and can be manufactured at low cost. The goal was to realize a cosmetics pressurized container, and to enable fine adjustment of the discharge amount when using it in a stepless manner, so that even high-viscosity liquid cosmetics could be easily extruded. is there.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a cartridge type cosmetic container comprising a combination of a cartridge and a holder which are fitted to be rotatable relative to each other. A piston is slidably and airtightly slidable inside, and its front side is used as a cosmetic storage chamber (or liquid storage chamber) .At the rear end of the cartridge cylinder, two or more arc-shaped sections are provided with elasticity. It is extended and provided with a female screw on its inner periphery. The holder for mounting the cartridge has a vertical groove formed on the inner circumference of the inner cylinder, and the inside of the inner cylinder is engaged with the vertical groove and guided back and forth, and the inside of the cartridge mounted at the front end is formed. A threaded rod that comes into contact with the piston and that can be screwed into the female thread is arranged by being pressed from the rear end by a pressing spring. When the cartridge is mounted on the holder, the outer periphery of the elastic arc-shaped section comes into contact with the inner periphery of the tip of the inner cylinder, and is preferably pressed inward in the radial direction. When the holder is rotated relative to the cartridge, the screw rod moves forward and presses the piston from behind, thereby pushing out the cosmetic. In the case of a liquid cosmetic, for example, a brush-like application body is fitted to the front end of the liquid storage chamber, and the cosmetic is discharged through this. In the present invention, since the discharge of the cosmetic is based on the relative rotation of the holder, it is easy to make fine adjustments in a stepless manner, unlike the above-mentioned knock-type container. When putting a stick-shaped cosmetic into the cosmetic storage chamber instead of the liquid cosmetic, the rotation of the holder can similarly push the piston to push out the cosmetic in a stepless manner. The crown makes it possible to make the stick-shaped cosmetic volatile.

[0005]

In the cartridge type cosmetic pressurizing container of the present invention, the screw rod arranged in the holder advances by the relative rotation of the holder with respect to the cartridge, and pushes the piston in the cosmetic accommodating chamber to discharge or push out the cosmetic. Therefore, by applying a strong rotational force to the holder, a cosmetic having a high viscosity can be easily discharged while overcoming the resistance, and an excellent action not provided by the knock type can be achieved.
Since the rotation amount can be adjusted steplessly, the discharge amount can also be adjusted steplessly. By changing the cartridge, it is easy to change the color of the cosmetic in the same holder, and the application body can be changed together with the replacement of the cartridge, so that the cosmetic application that is hygienic and always comfortable to draw it can.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
Basically, the cartridge type cosmetic pressurized container of this embodiment comprises a cartridge 1 containing a liquid cosmetic and a holder 15. The cartridge 1 comprises a cartridge cylinder 2 having a straight cylindrical hole therein, and a substantially conical holding cylinder 3 fitted to the tip of the cartridge cylinder 2. And a pipe 5 for guiding the liquid cosmetic. The rear end of the application body 4 is held in an airtight manner with respect to the inner periphery of the cartridge cylinder 2 by a packing 7.
Has a center hole communicating with the pipe 5. As can be seen from FIG. 1, the inner periphery near the rear end of the cartridge cylinder 2 has a stepped portion, on which a piston 8 slidable airtightly with the inner periphery of the cartridge cylinder is seated. A cosmetic container 9 is formed between the front surface of the piston 8 and the rear surface of the packing 7. When the cosmetic C (see the symbol C in FIG. 3 described later) is liquid,
The accommodation room 9 is also called a liquid storage room. The airtight structure of the piston 8 may be a conventional one, but an O-ring 6 as shown in FIGS. 2 and 3 described later can be used.

As a feature of the cartridge 1 of the present invention, the rear end of the cartridge cylinder 2 is extended rearward as two or more elastic arc-shaped sections 10. Since the arcuate section 10 is essentially the same in the second embodiment, it will be described with reference to FIG. 3 relating to the second embodiment.
Two split grooves 11 are formed at the rear end of the cartridge cylinder 2 so that two arc-shaped sections 10 are formed separately. In some cases, three or more split grooves 11 and arc-shaped pieces 10 may be formed. In any case, since the arc-shaped section 10 has elasticity, it is mounted on the holder as shown in FIGS. 1, 2 and 5 from the open state (unused state) as shown in FIG. It can bend in a reduced diameter state (used state). A female screw 12 is formed on the inner periphery of the arcuate section 10, as can be seen most clearly in FIG. It is preferable that the female screw (and the male screw of the screw rod 24 to be described later meshing with the female screw) have a pitch as small as possible. Reference numeral 14 denotes a locking portion between the cartridge and the holder, which is constituted by an undercut and a convex ring between the two. It should be noted that the female thread 12 may be cut from the beginning as an inner diameter that can be screwed into the threaded rod 10 from the beginning, and it is not an essential requirement to reduce the diameter and increase the diameter in the radial direction.

Returning to FIG. 1, the holder 15 is formed by integrally fixing an outer cylinder 16, a joint cylinder 17 and an inner cylinder 18 in the illustrated example. (A rear end of the cartridge is correspondingly an undercut). As shown in FIG. 1, two vertical grooves 19 are formed on the inner periphery of the inner cylinder 18 in the illustrated example. The inner periphery 20 of the front end of the inner cylinder 18 is slightly tapered to facilitate receiving the rear end of the arc-shaped section 10 at the rear end of the cartridge. Reference numeral 21 denotes an inner protrusion protruding from the inner periphery of the inner cylinder 20.

The outer cylinder 16 is closed at a bottom 22, and a screw rod 24 is disposed in the outer cylinder 16 via a pressing spring 23. The screw rod 24 is formed on the outer periphery with a male screw that is screwed with the female screw 12 of the arcuate section 10 of the cartridge. The length of the screw rod 24 is such that when the cartridge 1 is mounted on the holder 15, the screw rod 2 pressed from the rear end by the pressing spring 23 is used.
The leading end of the thread 4 enters the arc-shaped section 10, and the first pitch of the male screw is set to be long enough to contact the female screw 12. The rear end of the screw rod 24 has a large diameter portion, and a guide projection 25 on the outer periphery engages with the vertical groove 19 of the inner cylinder 18. A return spring 26 is inserted between the guide projection 25 and the inner protrusion 21. This spring inserts the screw rod 24 into the cartridge.
The cartridge 1 is inserted into the holder 15 when the
When the screw rod 24 is pulled out from the
Position), the screw bar 24 that has been advanced will be returned if the next cartridge is pushed into the holder without the return spring 26, so that the return spring 26 is not essential. In FIG. 1, reference numeral 29 denotes a cap, which has an airtight structure for preventing leakage of the liquid cosmetic in the illustrated example.

[0010] The use state will be described. First, the cartridge 1 is inserted into the joint tube 17 of the holder 15 with the rear end opened as shown in FIG. At this time, the threaded rod 24 in the holder 15 is pushed by the pushing spring 23 and is projected slightly upward from the position shown in FIG. When the cartridge 1 is inserted deep enough, the arc-shaped section 10 at the rear end of the cartridge cylinder elastically bends radially inward against the inner circumference 20 at the front end of the inner cylinder 18,
Push it in further and lock part 14 (undercut and convex ring)
Engage. At this time, the internal thread 1 on the inner circumference of the arc-shaped section 10
2 and the first pitch of the male screw of the screw rod 24 hit, and the screw rod 24 is pushed down. Then, when the holder outer cylinder 16 is rotated relative to the cartridge, the threaded rod 24 rotates with respect to the cartridge together with the outer cylinder, and the female screw 12 on the inner periphery of the arc-shaped section 10 in which the tip of the male screw is narrowed from the periphery. Biting, the screw rod 24 is advanced by screwing with a female screw. Screw rod 2 which moves forward when the holder is further turned
The tip of the piston 4 hits the bottom of the piston 8 and moves it forward, so that the liquid cosmetic in the liquid storage chamber 9 is pushed and leaches from the pipe 5 into the application body 4. Since the amount of rotation of the holder is steplessly variable, if the pitch between the male screw and the female screw is small, the leaching of the cosmetic can be adjusted in a very delicate stepless manner. When the viscosity of the cosmetic is high, there is a strong resistance to the advancement of the screw rod. However, if a correspondingly high rotational force is applied to the holder, an arbitrary amount of the high-viscosity cosmetic can be easily discharged. Thus, fine ejection adjustment can be performed by skillfully combining the rotation amount and the rotation force.

FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention. This embodiment is of a type in which the holder is not turned around the cartridge. The cartridge 1 used in this embodiment is shown in detail in FIG.
That is, The planar shape of the ratchet pawl 13 is as shown in FIG.
5, a ratchet 27 is provided on the inner circumference of the outer cylinder 16 as shown in FIG.
Are attached by being pressed against the pressing spring 23b. The ratchet 27 is shown in the unfolded state in FIG.
The holder can be relatively rotated clockwise (in the direction of arrow A in FIG. 4) by the meshing shape of the pawl 13 and the ratchet teeth 28, but cannot be turned in the reverse direction. In the first embodiment without the ratchet and the ratchet pawl, the holder can be turned in the reverse direction, and the tool is not immediately broken when the holder is turned in the reverse direction. Since it retreats away from 8, the next few rotations will be idle for the first few rotations and the cosmetic will not come out. In the second embodiment, this is prohibited, and only the normal rotation is performed so as to always secure the forward position of the screw rod 24. This is preferable in that the user does not perform useless operations.

Note that the holder 15 in the second embodiment is
The push spring 23a has a shape different from that of FIG. 1 and is stronger, but the essential function is the same. Also,
The return spring 26 in FIG. 1 is omitted in FIG. Other configurations in FIG. 2 are basically the same as those in FIG.
In the cartridge 1 shown in FIG. 3, reference numeral 30 denotes a temporary cap for the cartridge. Other configurations of the cartridge 1, that is, the cartridge cylinder 2, the holding cylinder 3, the application body 4, the pipe 5, the O-ring 6, the packing 7, the piston 8,
The liquid storage chamber 9, the elastic arc-shaped section 10, the split groove 11, the internal thread 12 on the inner periphery thereof, and the undercut 14 are the same as those described in the first embodiment.

The rotary piston pushing function of the present invention is characterized in that a high viscosity cosmetic can be easily pushed out by a strong rotating force as described above. FIG. 5 is a longitudinal sectional view showing a third embodiment of a cartridge type cosmetic pressurized container in which this feature is applied to a solid bar cosmetic. In this example, the cartridge 1 comprises only a cartridge tube 32 having a right cylindrical hole and a bar-shaped cosmetic material 34 accommodated therein. The airtightly slidable piston 8 is housed in the cartridge tube 32 as in the previous example. By covering the tip of the cartridge tube 32 with an airtight cap (not shown, but similar to the temporary cap 30 in FIG. 3), this cartridge can be used for highly volatile stick-shaped cosmetics. .

In FIG. 5, the structure of the holder 15 is the second
The embodiment is the same as that shown in FIG. 2, and the screw rod 24 guided (25) by the longitudinal groove 19 inside the integral outer cylinder 16, the joint cylinder 17 and the inner cylinder 18 is attached to the pressing spring 23a. The male thread of the threaded rod 24 is screwed into the female thread 12 of the arcuate section 10 at the rear end of the cartridge narrowed by the inner circumference 20 at the distal end of the inner cylinder, and the screw is advanced.
Has the same effect as the previous example in that it engages with the ratchet pawl 13 of the cartridge 1 to inhibit reverse rotation.

[0015]

As is apparent from the above description, the cartridge type cosmetic pressurized container of the present invention has a simple mechanism and a small number of parts for both the cartridge and the holder. However, there is an advantage that it can be made slim and can be manufactured at low cost. Since the cartridge type cosmetic pressurized container of the present invention is a rotary type, it is extremely easy to adjust the discharge or extrusion amount of the cosmetic unlike the knock-type conventional product, and unlike the knock type, the cosmetic resistance is high. Therefore, there is an advantage that a cosmetic having a high viscosity can be discharged because a strong rotational force corresponding to the pressure can be given. In the mode in which the ratchet mechanism is provided between the cartridge and the holder, since the reverse rotation is prohibited, there is an advantage that the user does not needlessly operate. Since the liquid cosmetic cartridge itself of the present invention is provided with an application body, the application body is also replaced each time the cartridge is replaced, which is hygienic and does not cause other colors to be mixed in the application body. The color of the contents can be changed in the same holder by changing the cartridge even during use. Furthermore, the rotary extrusion piston type cartridge of the present invention has a feature that it can be used as an airtight stick-shaped cosmetic delivery container by filling with a solid cosmetic except for the applied body.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a first embodiment of a cartridge type cosmetic pressurized container of the present invention, showing a state before use (cosmetics are not shown).

FIG. 2 is a longitudinal sectional view (without a cap) showing a second preferred embodiment of the cartridge type cosmetic pressurized container of the present invention in which reversal is prohibited; Is shown.

FIG. 3 is a longitudinal sectional view showing a suitable cartridge to be combined with the cartridge type cosmetic pressurized container of the present invention.

FIG. 4 is a partial plan development view showing a ratchet claw and a ratchet (chain line) in a preferred embodiment.

FIG. 5 is a vertical sectional view of a third embodiment of a cartridge type cosmetic pressurized container of the present invention applied to a stick-shaped cosmetic.

[Explanation of symbols]

1 ... cartridge 2 ... cartridge tube 3 ...
Holding cylinder 4 ... Applying body 7 ... Packing 8 ... Piston 9 ... Cosmetic storage chamber C ... Liquid cosmetic 10 ... Elastic arc-shaped section 11 ... Split groove 12 ... Female thread 13 ... Ratchet claw 15 ... Holder 16 ... Outer cylinder 17
... Joint tube 18 ... Inner tube 19 ... Longitudinal groove 20 ... Tip inner circumference 23 ... Push spring 23a, 23b ... Push spring 24 ... Screw bar 25 ... Guide protrusion 27 ... Ratchet 32 ... Cartridge tube 34 ... Stick-shaped cosmetic

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A45D 34/04 525 A45D 34/04 530 A45D 40/20 B05C 17/01 B43L 19/00 B65D 83/00

Claims (6)

(57) [Claims] 1. A piston (8) slidable in an airtight manner is disposed in a cartridge tube (2), and a front side thereof is located in a cosmetic storage chamber.
(9), two or more elastic arc-shaped sections (10) are extended at the rear end of the cartridge cylinder, and a female thread is
A cartridge-type cosmetic pressurized container comprising a combination of a cartridge (1) provided with (12) and a holder (15) for mounting the cartridge and extruding cosmetic by relative rotation with the cartridge, wherein the holder A longitudinal groove is formed on the inner circumference of the inner cylinder (18) constituting (15).
(19) is formed, in the inner cylinder (18), which is engaged with the longitudinal groove, is brought into contact with the piston in the cartridge mounted at the front end, and can be screwed with the female screw (12). Screw rod
(24) is arranged by pressing with a pressing spring (23), and when the cartridge is mounted on the holder, the arc-shaped section is formed.
The outer circumference of (10) abuts on the inner circumference (20) of the tip of the inner cylinder, and the internal thread (12) of the inner circumference of the arc-shaped section is screwed with the male screw of the screw rod (24), and the relative rotation of the holder causes the piston to rotate. And a cartridge-type cosmetic pressurized container characterized in that the container is advanced. 2. A holding cylinder (3) at a tip of a cartridge cylinder (2).
2. A liquid cosmetic is contained in a cosmetic container (9) formed between the application body and the piston (8) by airtightly attaching the application body (4) through the above-mentioned. Cartridge type cosmetic pressurized container. 3. A ratchet pawl (13) projecting from the outer periphery near the rear end of the cartridge cylinder (2), and a corresponding holder is provided.
The cartridge-type cosmetic pressurized container according to claim 1, wherein a ratchet (27) is mounted inside the (15). 4. A cartridge (1) comprising a cartridge cylinder (32) having a right cylindrical hole therein, and a rod-shaped cosmetic material (34) having a rear end in contact with said piston (8) in the cartridge cylinder (32). 2. The pressurized container according to claim 1, wherein the container comprises: 5. A piston (8) slidable in an airtight manner is disposed in a cartridge cylinder (2), and a pipe (5) is provided at the center of the cartridge cylinder via a conical holding cylinder (3) at the tip. The application body (4) is attached in an airtight manner, and the cosmetic accommodating chamber (9) between the application body and the piston is filled with the liquid cosmetic (C). An arcuate section (1
A liquid cosmetic cartridge extending as 0) and having a female thread (12) formed on the inner periphery thereof. 6. The cartridge according to claim 5, further comprising a ratchet pawl provided on an outer periphery near a rear end of the cartridge cylinder.