JPS5917210Y2 - Flat rod-shaped cosmetic core cartridge - Google Patents

Description

[Detailed description of the invention] The present invention relates to a flat rod-shaped cosmetic core cartridge, and more specifically, the present invention relates to a flat rod-shaped cosmetic core cartridge, and more specifically, the cosmetic core cartridge, such as eyeliner, eye shadow, etc. This invention relates to a flat rod-shaped cosmetic core cartridge that is formed as a crushed rod-shaped core.

Generally, cosmetics such as eyeliners and eye shadows are formed as rod-shaped cores with a circular cross section, but since such circular cross-sectional cores have a constant thickness, for example, when drawing eyeliner, you need to use the same thickness. If you can only draw lines and want to draw lines of different thicknesses, you will need to prepare several bottles of cosmetics of different thicknesses.

In addition, conventional bar-shaped cosmetics have relatively hard cores, making it difficult to differentiate between light and shade, resulting in a relatively monotonous makeup finish, which is unsatisfactory.

In view of these circumstances, the present invention aims to provide a bar-shaped cosmetic that can draw lines of different thicknesses and draw different shadings using a single bar-shaped cosmetic.

Specifically, the present invention forms the cosmetic core into a flattened bar shape with an elliptical, oval, or other sectional shape of unequal width and thickness, and also improves the hardness of the core. It is relatively lowered to form a soft flat core, and this flat core is housed in a flat pipe with the same cross-sectional shape as the flat core so as to be slidable with a predetermined frictional resistance, and the rear end of such a flat pipe is The flat core can be pushed out toward the front end of the pipe through a pressing frame made of an elastic material, and the combination of the flat pipe and the flat core is housed in the cartridge outer cylinder body so as to be able to reciprocate back and forth. Unless the pressing force from the rear end acts, these combinations are always elastically pressed toward the rear end, and when the pressing force from the rear end acts, they overcome the elastic pressing force and flatten. To provide a flat rod-shaped cosmetic core cartridge in which a combination of a mold core and a flat pipe can be pushed toward the front end of a cartridge outer cylinder to cause the flat core to protrude from the front end opening of the cartridge outer cylinder. .

The frictional resistance between the flat core and the flat pipe (separation resistance)
When a pressing force in the direction of the front end is applied to the rear end of the flat core through the pressing frame, the core and the pipe move forward together, overcoming the elastic pressing force in the direction of the rear end, and the flat core is moved forward. Preferably, the cartridge of the present invention is connected to a suitable core extrusion mechanism at the rear end, so that the frictional resistance is overcome by the pressing force toward the front end when the forward movement of the pipe is stopped. Of course, the tailing rod extending from the mechanism passes through the rear end of the cartridge and comes into contact with the rear end surface of the pressing frame.

The core extrusion mechanism is not particularly limited, but it is possible to use, for example, a knock-type mechanism that moves the core pusher forward and backward, or a rotating type that moves the core pusher forward and backward by turning a cylinder. I can do it.

Next, embodiments of the present invention will be described with reference to the drawings.

First, referring to FIGS. 1 to 5, FIG. 1 is a plan longitudinal cross-sectional view (corresponding to line II in FIG. 3) of the cartridge of the present invention, showing a state in which the flat core is pushed out from the flat pipe and the front end of the cartridge, FIG. 2 is a side longitudinal sectional view (corresponding to the line II--II in FIG. 3) of the cartridge of the present invention in a state where the core is not extruded.

Fig. 3 is a front view of the car ridge seen from the left end of Fig. 2, Fig. 4 is a cross-sectional view taken along line A-A in Fig. 2, and Fig. 5 is a cross-sectional view taken along line B-B in Fig. 2. It is a diagram.

In the figure, reference numeral 1 denotes a flat core of the present invention having an elliptical cross section, and is a rod-shaped cosmetic core whose width W (FIG. 1) is larger than its thickness T (FIG. 2).

The flat core 1 is formed to be relatively soft and is filled into a flat pipe 2 having the same cross-sectional shape, and slides between the core 1 and the inner wall of the pipe 2 while creating a predetermined frictional resistance as described above. It is possible to move.

In the illustrated example, the flat pipe 2 is illustrated as having an elliptical cross section, as shown in FIGS. 4 and 5.

A cylindrical guide 3 surrounds the outer periphery of the rear end (right end in FIG. 1.2) of the flat pipe 2 and is fixed thereto, so that the two are connected as one body.

As can be seen from FIG. 5, the inner wall of the cylindrical guide 3 surrounding the flat pipe 2 has an elliptical shape corresponding to the outline of the pipe 2, but the outer wall has an almost perfect circular shape (with ridges). 18 will be described later).

A portion of the inner wall of the cylindrical guide 3 near the rear end is formed into a through guide hole 4 having the same elliptical or other flat cross-sectional shape as the cross-sectional shape of the flat core 1, and a pressing frame 5 made of an elastic material is inserted here. Slidably inserted.

A tail pushing rod 13 (see FIG. 1) extending from a suitable core pushing mechanism (for example, a core pushing mechanism 14 shown in FIG. 8, which will be described later) is brought into contact with the rear end surface of the pressing frame 5.

When a pressing force is applied from the rear end via the core push rod 13, the pressing frame 5 comes into contact with the rear end surface of the flat core 1 and slides within the through guide hole 4 and the flat pipe 2 toward the front end.

Therefore, the pressing frame 5 must also have a cross-sectional contour (elliptical in the illustrated example) corresponding to the cross-sectional contour of the flat core 1.

The combination of the flat pipe 2 and the cylindrical guide 3 (which includes the flat core 1 and the flat pressing frame 5) is housed in the cartridge outer cylinder so that it can move back and forth. be done.

Preferably, the cartridge outer cylinder body is composed of a plastic front cylinder 6 and a metal front cylinder 7 attached to the front half thereof.

The front tube 6 houses a combination of the flat pipe 2 and the cylindrical guide 3 in an inner hole with a circular cross section, and the area around the front end through hole 6a of the front tube 6 can be seen in FIG. It has a slightly flattened shape that matches the contour of the flat pipe 2.

At the front end of the front tube 7, there is a cross-sectional shape larger than that of the flat core 1.
and has a cross-sectional shape smaller than the external dimensions of the flat pipe 2,
A front end opening 8 having a cross-sectional shape substantially similar to that of the flat core 1 is formed.

The front tube 7 has a flattened profile around the front end opening 8 (see FIG. 3), but gradually becomes a perfect circle toward the rear end (see FIG. 4).

The flat pipe/cylindrical guide combinations 2 and 3 housed within the cartridge outer cylinder are always subjected to an elastic pressing force toward the rear end of the outer cylinder.

In the illustrated example, a compression coil spring 9 is inserted between the front end of the cylindrical guide 3 and the inside of the front end of the front tube 6, and as shown in FIG. It is pressed against the tail plug 10 fitted to the rear end.

The tail plug 10 has a through hole 11 through which the tail rod 13 passes.

The same purpose can be achieved by disposing a tension coil spring between the rear end of the cylindrical guide 3 and the rear end of the front tube 6 in place of the illustrated compression coil spring 9.

A connecting means is provided on the outer periphery of the cartridge outer cylinder bodies 6, 7 for detachably connecting with a core extrusion mechanism 14 (FIG. 8), which will be described later.

In the illustrated example, a male thread 12 is formed in a portion of the front cylinder 6 whose outer periphery is a perfect circle, and is screwed into a female thread 15 formed at the front end of the core extrusion mechanism 14.

When the flat frame-shaped cosmetic core cartridge of the present invention is connected to a core extrusion mechanism, the core push rod 13 passes through the through hole 11 and hits the elastic pressing frame 5.

When the core pushing rod 13 moves forward, the pressing frame 5 pushes the rear end surface of the flat core 1, and this pressing force is applied to the flat pipe 2 and the tube because there is the predetermined frictional resistance between the core 1 and the pipe 2. The shaped guide 3 is moved forward by overcoming the elastic pressing force of the coil spring 9.

Although the front end portion of the cartridge outer cylinder body, in the example shown, the front end portion of the front tube 7 is narrowed to be smaller than the external dimensions of the flat pipe 2 as described above, when the flat pipe 2 hits this, its forward movement is limited. When the core rod 13 is stopped and continues to move forward, the flat core 1 advances from the pipe 2 due to its pressing force.
The face is exposed through the front end opening 8 of the front tube 7.

In this way, if the front end opening 8 of the front tube 7 is formed to be smaller than the external dimension of the flat pipe 2, the forward movement of the flat pipe 2 can be stopped, but in the illustrated embodiment, this stopping is made more secure. Therefore, an abutting portion 16 is provided at the rear of the opening 8.

In order to move the combined body of the flat pipe 2 and the cylindrical guide 3 forward and backward without rotating it within the cartridge outer cylinder, a linear guide means is provided between the outer cylinder and the combined body.

In the illustrated example, an axial guide groove 17 is formed on the inner wall of the front cylinder 7, and a protrusion 18 that is fitted into and guided is formed on the outer wall of the cylindrical guide 3.

As shown in FIGS. 2 and 4, reference numeral 19 is a groove-shaped attachment provided in the front end through hole 6a of the front barrel 6, and is a guide that connects the front barrel 6 and the front barrel 7 that form the cartridge outer barrel. When combining the
By introducing a common jig to the mounting guide recess 9 and the front end opening 8, the direction of the flat cross section (for example, ellipse) of the front end [18] and the direction of the cross section (ellipse) of the flat core 1 housed in the front tube 6 can be adjusted. can be easily matched.

As shown in FIGS. 2 and 5, 20 is a bulge protruding from the inner wall of the portion of the cylindrical guide 3 that surrounds the flat pipe 2, and is used to securely connect the pipe 2 and the guide 3. It is for the purpose of

Next, FIG. 6 is a front view of a preferred embodiment of the pressing frame 5, and FIG. 7 is a side view of the same.

In the present invention, since the flat core 1 is formed as a relatively soft cosmetic core, it would be inconvenient to press only a part of the rear end surface of the core in order to push it forward. It is desirable to press the entire surface with even pressure distribution.

For this reason, several protruding strips 21 are provided on the outer periphery of the pressing frame 5 in the axial direction.
is formed.

As a result, even if there are some differences in the inner diameter and cross-sectional shape of the through guide hole 4 and the flat pipe 2, the pressing frame 5 compensates for this and applies an appropriate compression force to the guide hole 4 and the flat pipe 2. Almost the entire rear end surface of the flat core 1 can be pressed while being pressed against the inner wall.

Finally, FIG. 8 is a longitudinal sectional view of the cartridge of the present invention coupled to a preferred core extrusion mechanism 14.

The cartridge part has the same configuration as already described, but the core push rod 13 advances a little and pushes the flat core 1 through the pressing frame 5, and the flat core 1 and the flat pipe 2 are integrated into the second
The flat pipe 2 is about to abut against the abutting portion 16 by moving it forward from the state shown in the figure.

Reference numeral 22 denotes a cylindrical block forming a part of the core extrusion mechanism 14, which has its front and rear ends opened and passed through, and has a female thread 15 formed on the inner periphery of the front end.

The rear end of the cylindrical block 22 has a narrow diameter, an annular recess is formed on the outer periphery of the narrow diameter portion, and a threaded cylinder 23 having an annular protrusion that engages with this recess is attached.

The threaded cylinder 23 can rotate relative to the cylindrical block 22, but cannot move axially.

A spiral groove is formed in the inner wall of the threaded cylinder 23 as schematically shown in FIG.

An outer cylinder 24 is fixedly attached to the outer periphery of the threaded cylinder 23.

In the illustrated example, the front end of the outer cylinder 24 also covers a part of the cylindrical block 22, but this part is not fixed.

Reference numeral 25 denotes a groove pipe whose front end is inserted and fixed into the rear end opening of the cylindrical block 22, and this groove pipe 25 penetrates the inside of the threaded cylinder 23 and projects toward the rear end.

The above-mentioned core push rod 13 is inserted into the groove pipe 25, and the front end of the core push rod 13 is inserted into the through hole 11 of the cartridge tail plug 10.
A driven protrusion 26 is formed at the rear end of the tailing rod 13 to fit into the helical groove of the threaded cylinder 23 through a groove formed in the axial direction on the surface of the grooved pipe 25. There is.

27 is a bulge at the rear end of the groove pipe 25, and 28 is a compression spring.

When the outer cylinder 24 fixed to the outer periphery of the threaded cylinder 23 is rotated, the threaded cylinder 23 rotates relative to the cylindrical block 22 and the cartridge of the present invention, and the spiral groove on its inner wall rotates, so that the threaded cylinder 23 is fitted into it and rotated. The driven protrusion 26 guided by the non-rotating groove pipe 25 moves linearly in the axial direction, and
Advance 3.

In order to move the tail rod 13 backward, the outer cylinder 24 may be rotated in the opposite direction.

When the tailstock 13 retreats and the pressing force acting on the pressing frame 5 disappears, the cylindrical guide 3 and the flat pipe 2 in the cartridge are removed.
The combined body is pushed back toward the rear end of the cartridge by the elastic pressing force of the coil spring 9, resulting in a state as shown in FIG.

However, at that time, if the flat core 1 has protruded from the front end of the flat pipe 2 as shown in FIG. There is.

As explained above, according to the present invention, the cosmetic core is formed into a flat cross section with different widths and thicknesses, so it is possible to skillfully draw lines of different thicknesses with a single core. Since the flat core is relatively soft, it is possible to create different shadings, and delicate and subtle makeup can be applied with just one cosmetic product.

In addition, the flat core of the present invention is filled into a flat pipe with the same cross-sectional shape and receives pressing force through the pressing plug of the elastic pressing body. The edges will not be scraped or crumbled.

Furthermore, according to the present invention, by pushing the rear end surface of the core, the pipe filled with it is moved forward, and the core is made to protrude only near the front end opening of the cartridge. It doesn't stick out too much and break.

[Brief explanation of drawings]

Figure 1 is a plan longitudinal cross-sectional view of the cartridge of the present invention with the flat core extruded (corresponding to line I-I in Figure 3), and Figure 2 is a side vertical cross-sectional view of the cartridge of the present invention with the core not extruded. (
Figure 3 corresponds to line II-II), Figure 3 is a front view of the cartridge as seen from the left end of Figure 2, Figure 4 is Figure 2 A-A.
5 is a cross-sectional view taken along the line BB in FIG. 2, FIG. 6 is a front view of a preferred embodiment of the elastic pressing body used in the present invention, and FIG. 7 is a side view of the same. , FIG. 8 is a longitudinal sectional view of the cartridge according to the present invention in combination with an example of a suitable core extrusion mechanism. Main symbols 1...Flat core, 2...Flat pipe, 3...Cylindrical guide, 4...Through guide hole, 5... ...Elastic pressure frame, 6...
...Base part (cartridge outer cylinder body), 7... Tip cylinder (cartridge outer cylinder body), 8... Front end opening, 9
...Coil spring, 10 ...Tail plug, 13
... Core pushing rod, 14... Core pushing mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] A flat core of a rod-shaped cosmetic product whose cross-sectional width is larger than its thickness is housed in a flat pipe having the same cross-sectional shape as the flat core so as to be slidable with a predetermined frictional resistance. A through guide hole having approximately the same cross-sectional shape as the flat core is formed in the center of a cylindrical guide connected around the rear end of the pipe, and has elasticity that allows sliding reciprocation within the through force guide hole and the flat pipe. A press frame made of material is inserted into the through guide hole so that its front end surface is in contact with the rear end surface of the flat core, and the combination of the flat pipe and the cylindrical guide is placed at the front end of the flat core. The cartridge has a front end opening that is larger than the cross-sectional contour and smaller than the cross-sectional contour of the flat pipe, and a through hole at the rear end through which the core pushing rod extending from the core extruding mechanism is inserted, allowing for back and forth reciprocation inside the cartridge outer cylinder. A coil spring is disposed between the cartridge outer cylinder and the cylindrical force field, and the coil spring always elastically presses the combination of the cylindrical guide and the flat pipe toward the rear end of the outer cylinder. A flat rod-shaped cosmetic core cartridge.