JPH0243293Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a cartridge-type cosmetic product with a shortened overall size.More specifically, makeup can only be applied when the cartridge is inserted into a shorter holder body. The present invention relates to short cartridge-type cosmetics, in particular cartridge-type lipsticks, in which the cosmetic core can be rotatably fed out, but the cosmetic core cannot be fed out using the cartridge alone.

[Conventional technology and its problems]

2. Description of the Related Art Cartridge-type cosmetics are well known, in which a bar-shaped cosmetic such as lipstick is stored in a cartridge tube, the cartridge tube is combined with a holder body, and the lipstick is dispensed when the holder body is rotated. In such cosmetics, the holder body usually has a built-in mechanism that converts the rotation of the holder into linear motion and transmits it to the cosmetic bar in the cartridge. The length of bar-shaped cosmetics does not apply. In other words, the total length of the cartridge-type cosmetic is the length of the net cosmetic bar plus the holder body that is twice or more long. On the one hand, such long cosmetic products can be slimmed down and give a smart appearance, but on the other hand, the handbag is a nuisance to carry in a pocket, and in terms of the effective length of the cosmetic product itself, it is always redundant or wasteful. There is a problem with carrying around such a long length.

In addition, with conventional cartridge-type cosmetics, there are some that allow cosmetics to be dispensed from the cartridge alone without being combined with a holder, and there are concerns that such cartridges may be used or stolen before reaching the consumer. Alternatively, there is a risk that the consumer may feel uncomfortable.

[Purpose of invention]

Therefore, the present invention was made to solve these problems, and the cartridge containing the cosmetic core is inserted concentrically into the holder body, so that the holder body substantially extends the length of the cartridge. To provide a short-sized cartridge-type cosmetic product which prevents this from occurring and also prevents the cosmetic core from being drawn out using the cartridge alone.

[Summary of the idea]

In order to achieve the above object, the present invention stores a cosmetic core in a cartridge which does not rotate by itself so that it can be rotated through a rotatable rotation transmission cylinder, and fits the cosmetic core onto the outer periphery of the cartridge without contacting it. The holder main body, which is shorter than the cartridge, and the rotation transmitting cylinder inside the cartridge are connected by the elastic force of a U-shaped ring-shaped cylinder spring. The U-shaped annular cylindrical spring serves as a removable mechanical connection between the holder body and the cartridge, and also serves as a motion transmitting means from the holder to the cosmetic core inside the cartridge. By fitting the holder body and the cartridge concentrically using a U-shaped annular cylindrical spring, the length of the entire cosmetic product is essentially the length of the cartridge, which is significantly longer than the length of the net cosmetic bar. You can obtain short-sized cartridge-type cosmetics that will never cause problems.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing a cartridge 1 of the short cartridge type cosmetic product of the present invention, and FIG. 2 is a vertical cross-sectional view showing the holder main body 2 and cap 3 separately, which constitute the cosmetic product of the present invention. FIG. 3 shows a state in which the cartridge 1 is inserted into the holder main body 2, and FIG. 4 shows a state in which the holder main body 2 is rotated relative to the cartridge 1 and the cosmetic core 16 is advanced. Note that the illustrated example shows a case where the cosmetic core 16 is a lipstick.

The cartridge 1 consists of a cartridge tube 11 with an open rear end, and the front end of the cartridge tube 11 has an opening 11a with a diameter that allows a cosmetic core 16 to enter and exit. A cylindrical helical body 12 is fixed to the inner periphery of the cartridge 11, leaving the vicinity of the rear end, and two helical grooves 12a and 1
2b is engraved as shown schematically in FIG. 1 by dashed and dashed lines. A rotation transmission cylinder 13 is fitted inside the helical body 12 over substantially the entire length of the cartridge cylinder 11 so as to be relatively rotatable. A pressure-receiving engagement surface 13a is formed on the outer periphery of the rotation transmission cylinder 13 near the rear end, leaving a small gap 14 between it and the inner periphery of the cartridge cylinder 11, as will be explained later, and the front end of the engagement surface 13a The protrusion 13b protruding from the side lightly contacts the rear end of the helical body 12. Rotation transmission cylinder 13
Two vertical grooves 13c are formed in the inner part of the helical body 12, and a tip protrusion 13d projects from the closed front end of the vertical groove 13c. The tip protrusion 13d engages with a step portion formed corresponding to the tip of the helical body 12 so as to be relatively rotatable. The rear end of the rotation transmission cylinder 13 is closed with a bottom 13e, and this bottom 13e prevents the pressure receiving engagement surface 13a from deflecting in the radial direction.

A core chuck 15 is fitted inside the rotation transmission cylinder 13 so that it can rotate together with the rotation transmission cylinder 13 and slide forward and backward. Two engaging protrusions 15a protruding from the outer periphery of the core chuck 15 penetrate the vertical groove 13e and engage the helical groove 12 on the inner periphery of the helical body 12.
a and 12b. Therefore, when the pressure-receiving engagement surface 13a is turned with respect to the cartridge cylinder 11, for example, in the right-handed direction in FIG. It moves forward guided by the helical grooves 12a and 12b in which the protrusion 15a is engaged. The lead chuck 15 grips the rear end of a cosmetic lead 16 (for example, a lipstick).

When the cartridge 1 shown in FIG. 1 is inserted into the holder main body 2 shown in FIG. They are connected in such a way that The holder main body 2 has an outer cylinder 21 approximately half the length of the cartridge cylinder 11. The rear end of the outer cylinder 21 is closed. A cylindrical spring 22 having a substantially U-shaped annular cross section is fitted into the inner periphery of the outer cylinder 21 so as to be in contact with the inner bottom of the rear end. The inner peripheral surface of the cylindrical spring 22 is a press-fitting engagement surface 22
The outer circumferential surface of the outer cylinder 21 is in close contact with the inner circumferential surface of the outer cylinder 21, as shown in FIG. 2, and is practically integrated therewith. This close contact area may be glued. Outer cylinder 21
The coupling ring 23 is inserted into the outer cylinder from the front end open part,
The rear end 23a is firmly in contact with the front end of the outer circumference of the cylindrical spring 22. The tip 23b of the coupling ring 23 is connected to the outer cylinder 2.
It protrudes from 1 and is designed to receive the cap.

The cap 3 has a closed top surface 3a and an open rear end, and is configured such that its inner circumferential rear end 3b is frictionally engaged with the tip 23b of the holder body 2 to be covered with the cap.

FIG. 3 shows that the cartridge 1 of FIG. 1 is inserted into the holder main body 2 of FIG. The state is shown as a partial longitudinal sectional view. The outer circumferential surface of the cartridge cylinder 11 and the inner circumferential surface of the holder body 2 (i.e., the coupling ring 23
There is a gap between the inner peripheral surface of However, the inner circumference (pressure engagement surface 22a) of the annular U-shaped cylindrical spring 22 fixed to the inner circumference of the rear end of the outer cylinder 21 rotates with an elastic force that tends to contract radially inward. Since the cartridge 1 is strongly press-fitted with the pressure-receiving engagement surface 13a of the transmission cylinder 13, the cartridge 1 cannot be pulled out from the holder main body 2 unless a force sufficient to break this engagement force is intentionally applied. Furthermore, for the same reason, when the holder main body 2 (outer cylinder 21) is rotated, the rotation transmitting cylinder 13 rotates together. In this way, the cylindrical spring 22 serves as a means for connecting the holder and the cartridge, as well as a means for transmitting rotation.

In order to strengthen such a pressure welding engagement force, the inner diameter of the pressure welding engagement surface 22a in its natural state (the state shown in FIG. 2) is
It is preferable to form it slightly smaller than the outer diameter of the pressure receiving engagement surface 13a of the rotation transmission cylinder 13. Further, both the engaging surfaces 13a and 22a may be formed into rough surfaces.

In the state shown in Fig. 3, for example, hold the cartridge cylinder 11 with your left hand, hold the outer cylinder 21 of the holder main body 2 with your right hand, and turn the right hand approximately 90 degrees in the direction of the right screw.
As shown in FIG. 4, the cosmetic core 16 advances while rotating. That is, the rotation of the outer cylinder 21 causes the rotation transmitting cylinder 13 to rotate by the same amount via the cylinder spring 22, so that the core chuck 15 is connected to the vertical groove 13 through the protrusion 15a.
The helical groove 12a is rotated in the same manner by c.
(and 12b) and is moved forward by the helical pitch. Therefore, the protrusion 15a of the core chuck 15 that was visible in FIG. 3 has been turned about 1/4 of a turn and is hidden at the position indicated by the broken line 15a in FIG. If the holder main body 2 is turned in the opposite direction from the state shown in FIG. 4, the cosmetic core 16 will return to the original state shown in FIG. 3.

In the state shown in FIG. 3, attach the cap 3 shown separately in FIG.
When the cap 3 is attached to the holder body 2, it is not in contact with the cartridge 1 at any point, so even if the holder body 2 is forcibly rotated relative to the cap 3, the cosmetic core 1
6 does not advance at all.

Also, when the cartridge 1 is alone as shown in Figure 1, it is necessary to bring a special tool to close the gap 1.
The cosmetic core 16 cannot be drawn out unless the cosmetic core 16 is inserted into the base and the pressure-receiving engagement surface 13a is strongly gripped. In this sense, the gap 14 is slightly thicker than the inner peripheral part 22a of the cylindrical spring 22, for example, the inner peripheral part
If the thickness is 0.8 mm, a gap of about 1 mm is sufficient.
Since there is no ready-made tool that can be inserted into such a gap and firmly grip the pressure-receiving engagement surface 13a, it is practically impossible to rotate the cosmetic core using the cartridge 1 alone.

[Effect of idea]

As explained above, according to the present invention, since the holder outer cylinder and the rotation transmission cylinder inside the cartridge are connected using the annular U-shaped cylindrical spring, the holder main body is arranged concentrically so as to overlap the outer periphery of the cartridge. The length of the entire cosmetic product can be shortened to the extent that it is not significantly longer than the effective length of the cosmetic core, making it a convenient cosmetic product that can be easily carried in a pocket or small pouch. can do.

Furthermore, according to the present invention, the cosmetic core cannot be fed out by the cartridge alone unless it is combined with the holder body, so it is safe to prevent theft or unauthorized trial use.

Furthermore, even when the cartridge is combined with the holder body, the cosmetic core inside the cartridge cannot be rotated if it is capped, so the cosmetic core will naturally move out due to shocks and vibrations while being carried, preventing stains and dirt. No cutting damage occurs.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a cartridge constituting a short-sized cartridge-type cosmetic product according to the present invention, FIG. 2 is a vertical cross-sectional view showing the holder body and cap separated, and FIG. 3 is a longitudinal cross-sectional view of the cartridge of FIG. 1. the second
A partial cross-sectional elevational view of the short cartridge-type cosmetics inserted into the holder body shown in the figure.
FIG. 3 is a rotated partial cross-sectional elevational view. Main code, 1... Cartridge, 11... Cartridge tube, 12... Spiral body, 12a, 12b
... Spiral groove, 13 ... Rotation transmission cylinder, 13a ...
Pressure-receiving engagement surface, 14... Gap, 15... Core chuck, 16... Cosmetic core, 2... Holder body, 2
DESCRIPTION OF SYMBOLS 1... Outer cylinder, 22... Cylindrical spring, 22a... Inner circumferential part (pressure contact engagement surface), 3... Cap.

Claims (1)

[Claims for Utility Model Registration] A rotation transmitting cylinder 13 is rotatably disposed inside a cartridge cylinder 11 which itself does not rotate, and a helical body 12 which is fixed to its inner periphery and has a helical groove carved in its inner periphery. The rotation transmitting cylinder has a pressure receiving engagement surface 13a which is not directly exposed to the outside on the outer periphery of the rear end, and a gap 1 between the inner periphery of the rear end of the cartridge cylinder 11.
Inside the rotation transmission cylinder, a core chuck 15 for holding a cosmetic core 16 has a protrusion 15a protruding from its outer periphery and a vertical groove 13c formed in the rotation transmission cylinder. A cartridge 1 that penetrates and is fitted into the helical groove so as to be engaged with the helical groove, and a holder body 2 that is shorter than the cartridge 1 and that is fitted onto the outer periphery of the cartridge 1 without contacting the outer periphery of the cartridge 1. The outer cylinder 21 has a U-shaped annular cylindrical spring 22 on the inner periphery of the rear end thereof, and the inner diameter of the inner peripheral part 22a of the cylindrical spring is equal to or smaller than the outer diameter of the pressure receiving engagement surface 13a. A short cartridge-type cosmetic product comprising a holder body 2 having a predetermined shape, and a cap 3 which is placed on the front end of the holder body 2 without coming into contact with the cartridge 1.