JP7105018B1 - Cosmetic tool with replaceable core - Google Patents

Abstract

[Problem] To provide a cosmetic tool with a replaceable lead that can be easily replaced without replacing the cosmetic container with a new one after the lead has been used, and the cosmetic tool can be used continuously as it is. offer. The present invention comprises a substantially cylindrical spiral rod (7) provided with a spiral groove (6) formed by a spiral ridge (29) on the inner peripheral surface of a hollow portion, and a fitting fitting fitting into the spiral groove (6). The fitting portion spirally moves in the spiral groove 6 by the rotation of the helical rod 7 so that it can advance and retreat in the longitudinal direction of the hollow portion of the helical rod 7, and the tip of the advancing and retreating rod 9. and a lead chuck member 5 having a lead gripping member 8 for mounting a lead, and a base rod 18 to which the spiral rod 7 is attached so as to be rotatable about the axial direction as a rotation axis. [Selection drawing] Fig. 1

Description

The present invention relates to cosmetic tools such as eyebrows and eyeliners, and more particularly, to cosmetic tools with replaceable cores that allow purchasers themselves to easily replace the core materials and to use them repeatedly without discarding used containers. .

For cosmetic tools such as eyeliners and eyebrows, conventionally, the disposable type, that is, the disposable type, in which the entire plastic cosmetic container itself is discarded after the core has been used up and replaced with a cosmetic tool containing a new core, is the mainstream. It was.

However, in recent years, the movement to reduce _CO2 typified by carbon neutrality and the movement to eliminate the destruction of the marine environment by plastic products have become global trends. and the movement to replace with recycled products is gradually increasing.

However, in the movement to replace plastic products, there are problems such as an increase in product cost and a decrease in functionality, and rapid progress in the replacement has never been seen in the industry.

JP 2003-159119 A

The present invention has been devised to address the above-mentioned conventional problems. For example, in the case of a retractable cosmetic pencil, after the lead has been used up, the entire cosmetic container can be discarded and replaced with a new one. To provide a core replaceable cosmetic tool which can be easily replaced without a core and can be continuously used as it is.

That is, it can be said that the present invention focuses particularly on Reduce (emission control) and Reuse (reusable) in the concept of 4R (Refuse, Reduce, Reuse, Recycle). Ethical consumption (ethical consumption behavior) is also pervasive, and it is believed that the present invention, which is environmentally friendly and highly economical, will be of great benefit to users.

Unlike hard stationery cores that are kneaded with resin, cores used for eyebrows and eyeliners are composed of cosmetic pencil cores with oil and wax as base materials. Since the cosmetic pencil lead is soft, it needs to be handled with care. In addition, it is extremely difficult to cleanly pull out the remnants of the lead that are slightly left on a part called a lead chuck that holds the lead.

Conventionally, the used lead remains in the lead chuck. For example, even if a new lead is loaded and the cosmetic tool is changed to a type that can be used repeatedly, the remnants of the lead remaining in the lead chuck can be removed cleanly. There is a problem that it is difficult to clean the container by using the wick due to the structure of the conventional container (because the lead chuck stays inside the container).
In addition, conventionally, cores have been loaded in separate cosmetics for each color, and when purchasing cosmetic material products of various colors, it has been necessary to purchase cosmetic material products for each color. Therefore, it was necessary to display cosmetics and the like in the number of colors in the sales floor.

However, according to the present invention, by selling the cosmetics and refills separately, there is only one SKU (stock management unit) for the cosmetics, and the manufacturer's inventory risk can be reduced.
In addition, even if several refills are set, the capacity is small and does not take up much space, so there is the advantage of being able to efficiently utilize valuable storefront space.

The present invention
a substantially cylindrical helical punch having a helical groove formed by a helical ridge on the inner peripheral surface of the hollow portion;
an advancing/retreating rod having a fitting portion fitted into the spiral groove, the fitting portion spirally moving in the spiral groove by rotation of the spiral punch so as to advance and retreat in the longitudinal direction of the hollow portion of the spiral punch; a lead chuck member provided at the tip of the retractable rod and having a lead gripping member for mounting the lead;
The spiral punch has a base punch attached so as to be rotatable about the axis direction as a rotation axis,
The lead chuck member to which the lead is attached is detached from the spiral groove by removing the fitting portion from the spiral groove, and the lead chuck member to which a replacement lead is attached after the detachment. The core chuck member is inserted into the spiral punch, and by rotating the spiral punch, the fitting portion is fitted into the spiral groove, so that the core chuck member can be advanced and retracted in the longitudinal direction of the spiral punch within the spiral punch.
characterized by
or,
The configuration in which the core chuck member can move forward and backward in the spiral punch in the longitudinal direction of the spiral punch is formed by forming a spiral groove starting portion on the upper side of the hollow portion of the spiral punch and fitting the spiral groove starting portion into the spiral groove starting portion. By rotating the helical punch, the fitting portion is fitted into the helical groove to enable the core chuck member to enter the deep side of the helical punch. It is a configuration that can be pulled back to the tip side of the spiral pestle,
characterized by
or,
The configuration in which the core chuck member can move forward and backward in the spiral punch in the longitudinal direction of the spiral punch is
The tip opening of the spiral punch is directed upward and held substantially vertically, the lead chuck member is inserted into the tip opening from the guide projection side of the lead chuck member, and the lead chuck member is fitted into the spiral groove starting portion. It is a configuration in which the part is loosely fitted and locked, and the spiral punch is rotated,
It is characterized by

According to the cosmetic tool with a replaceable lead of the present invention, even in the case of a retractable cosmetic pencil or the like, after the lead is used up, the entire cosmetic container can be discarded, and only the lead can be replaced without buying a new one. The cosmetic container can be used continuously without being discarded, and the wick can be replaced easily, and if only the wick is replaced, the wick residue left in the wick chuck of the wick holder can be removed cleanly. In addition, if the lead attachment set attached to the lead holder is replaced, the lead holder can be replaced without directly touching the lead residue remaining in the lead chuck with the hand, and the hands are not soiled. There is no merit.

Therefore, the entire cosmetic container can be used repeatedly as it is without being discarded, so that it is possible to reduce the burden on the purchaser.

1 is a configuration explanatory diagram (1) for explaining the configuration of the present invention; FIG. FIG. 2 is a configuration explanatory diagram (2) for explaining the configuration of the present invention; FIG. 2 is an enlarged view of a main part of the present invention; FIG. 11 is an explanatory diagram for explaining a state in which a core chuck member with a core is sold separately; It is a schematic explanatory drawing which demonstrated the front-end|tip opening of a spiral punch from upper direction. It is a schematic explanatory drawing which expand|deployed and demonstrated the state of the internal peripheral surface of a spiral punch. FIG. 10 is an explanatory diagram illustrating a state in which the lead chuck member is inserted through the tip opening of the base punch;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on an embodiment shown in the drawings.
FIG. 1 shows a cosmetic tool 1 with a replaceable core according to the present invention.
The replaceable core cosmetic tool 1 includes a core 4, a core chuck member 5 to which the core 4 is attached, a spiral punch 7 to which the core chuck member 5 is attached so as to be movable in the longitudinal direction, and a spiral punch 7 to which the core chuck member 5 is attached. It has a base punch 18 to be incorporated, and these are assembled to form a basic cosmetic tool 1 with replaceable core. Furthermore, the above-mentioned assembled basic replaceable cosmetic tool 1 is put into, for example, a cylindrical cosmetic tool main body and a cylindrical cap, and is sold as a cosmetic tool 1 with replaceable lead with various designs.

First, the configuration of the lead chuck member 5 will be described. The lead chuck member 5 has a rod-like advancing/retreating rod 9 which is movable while rotating in the longitudinal direction of the helical punch 7, and a lead gripping member 8 is provided at the tip of the advancing/retreating rod 9. The member 8 has a lead gripping piece portion 12 composed of a plurality of lead gripping pieces 10 for gripping and holding the lead 4 .

The advancing/retreating rod 9 has a substantially columnar shape, and a guide projection 15 projecting outward in the shape of, for example, a substantially ball projection is provided on the outer peripheral surface of the rear end portion in the longitudinal direction thereof. At the rear end in the longitudinal direction of the advancing/retreating rod 9, the guide pieces are at least spaced apart in the circular outer peripheral direction in a state of protruding slightly outward from the outer peripheral surface of the rear end and protruding downward. It is also possible to provide two guide pieces and provide the guide protrusion 15 having the above shape on the outside of the guide pieces. However, a type in which the guide projection 15 is provided directly on the outer peripheral surface of the rear end portion of the advancing/retreating rod 9 without providing the guide piece may also be used.

The helical punch 7 has a substantially cylindrical shape, and is formed as a ridge protruding from the inner peripheral surface of the hollow portion toward the axis of the hollow portion in the hollow portion inside, spiraling in the longitudinal direction of the hollow portion. A spiral ridge 29 is provided which is formed in a continuous manner.

Here, the spiral groove starting portion 30 formed by the spiral ridge 29 is not formed at the upper end position of the hollow portion of the spiral punch 7, but is provided at a position deeper than the upper end portion of the hollow portion. . The reason why the spiral groove starting portion 30 is not provided at the upper end of the hollow portion, but is provided at a position deeper from the upper end of the hollow portion is that the spiral punch 7 extends from the upper end of the hollow portion to a position deeper. This is because the rear end side of the advancing/retreating rod 9 can be inserted into the hollow portion of the spiral punch 7, thereby improving the initial mounting stability of the core chuck member 5 to the spiral punch 7. FIG.

As shown in FIG. 5, four spiral groove starting portions 30 are provided at intervals in the circumferential direction on the inner peripheral surface of the hollow portion on the tip end side of the substantially cylindrical spiral punch 7 . FIG. 6 is a developed view thereof, and as shown in FIG. 6, four spiral groove starting portions 30 are provided in the circumferential direction, and each spiral ridge 29 is formed by connecting each spiral groove starting portion 30. , the spiral groove 6 spirally extends to the back of the spiral punch 7 .

In this embodiment, four spiral groove starting portions 30 are provided, and the spiral ridges 29 are connected from the respective spiral groove starting portions 30, respectively. It does not matter if there are two or more groove start portions 30 .

If the number of spiral groove starting portions 30 is small, the number of spiral ridges 29 connected thereto is also small, so that the groove width of the spiral groove 6 formed by the upper and lower spiral ridges 29 becomes wider. In addition, as the number of spiral groove starting portions 30 increases, the number of spiral ridges 29 connected thereto also increases, so the groove width of the spiral groove 6 formed by the upper and lower spiral ridges 29 becomes narrower.

In this embodiment, four spiral groove starting portions 30 are provided as an optimum case in which the guide projection 15 provided on the advance/retreat rod 9 of the lead chuck member 5 can smoothly rotate spirally and move within the spiral punch 7. Thus, a spiral groove 6 having an optimum groove width is formed.

Therefore, when the length of the spiral punch 7 is increased or the size of the guide projection 15 is increased, the lead chuck member 5 can be smoothly rotated spirally in an optimum state, and the inside of the spiral punch 7 can be smoothly rotated. , the number of spiral groove starting portions 30 is changed to form the spiral groove 6 with a changed groove width.

In attaching the core chuck member 5 to the spiral punch 7, first, the spiral punch 7 is held in a substantially vertical direction. Next, with the lead gripping piece 10 side facing the front end side and the guide projection 15 side of the rear end portion of the advancing/retreating rod 9 facing the rear end side, the lead chucking member 5 is hollowed out from the front end opening of the spiral punch 7 erected in the vertical direction. Insert inside. Then, the core chuck member 5 having, for example, at least two or more guide projections 15 drops into the hollow portion of the spiral punch 7 due to its own weight. Then, the guide projection 15 is loosely fitted to the spiral groove starting portion 30 and locked there.

When the spiral punch 7 is rotated using the rear end knob 16 or the like of the spiral punch 7 while the guide projection 15 is engaged with the spiral groove beginning portion 30, the guide projection 15 moves toward the spiral groove beginning portion 30. smoothly spirally drop-moving in the spiral groove 6 connected to and enter the inside of the spiral punch 7. - 特許庁By further rotating, the retractable rod 9 and the core chuck member 15 can be advanced to the far side of the spiral punch 7 .

That is, by rotating the helical punch 7, the guide projection 15 provided on the forward/backward rod 9 drops and moves loosely in the helical groove 6 provided on the inner peripheral surface of the hollow portion of the helical punch 7, It can move to the back side of the hollow part. As the guide projection 15 spirally drops within the spiral groove 6, the forward/backward rod 9, and thus the lead chuck member 5, can be moved to the far side of the spiral punch 7 while rotating.

As described above, the guide projections 15 protruding in the shape of a round ball are opposed to each other at the circular rear end portion of the advancing/retreating rod 9 or at the guide piece provided at the rear end portion. It is preferable to provide at least two or more, such as providing, but two or more may be provided.

Further, the tip opening of the hollow portion of the spiral punch 7 may be configured so that the guide projection 15 provided at the rear end portion of the advancing/retreating rod 9 can be easily inserted. That is, the tip opening of the hollow portion of the spiral punch 7 is provided with a guide surface that is slightly widened outward so that the guide projection 15 can be easily inserted into the spiral ridge 29. A configuration in which the end portion easily enters the hollow portion of the spiral punch 7 may be employed.

When the guide projection 15 is loosely inserted into the spiral groove starting portion 30 and locked, and the spiral punch 7 is rotated in this state, the guide projection 15 smoothly moves over the spiral projection 29 on the lower side. to move in the spiral groove 6.

That is, by rotating the spiral punch 7 using a rear end knob 16 provided at the rear end of the spiral punch 7 or a makeup tool body configured to interlock with the rear end knob 16, the forward/backward rod 9 is provided. The core chuck member 5 can be inserted into the inner part of the hollow portion of the spiral punch 7 and can be pulled back to the tip side of the spiral punch 7 .

As described above, the core chuck member 5 can be inserted into the helical punch 7 and can be pulled back by inserting, for example, two guide projections 15 provided at the rear end of the advancing/retreating rod 9 into the hollow of the helical punch 7 . This can be achieved by arranging it to be easily loosely inserted into the spiral groove start portion 30 provided in the portion and the spiral groove 6 connected thereto, locked therein, and slidably moved in a spiral manner.

Furthermore, when the present invention is used, that is, when used as an eyebrow, eyeliner, etc., the lead chuck member 5 to which the lead 4 is attached is so arranged that the guide protrusions 15 are positioned on the upper spiral ridge 29 and the lower spiral ridge 29 . Since it stays in the spiral groove 6 constituted by and, the spiral punch 7 is prevented from moving freely in the longitudinal direction by the upper and lower spiral ridges 29.例文帳に追加This is also a major feature of the present invention.

Next, a method of inserting the spiral punch 7 having the core chuck member 15 with the core 4 attached into the hollow portion of the base punch 18 and attaching it will be described.

In FIGS. 1 and 2, reference numeral 14 denotes a locking projection provided on the rear end side outer peripheral surface of the spiral punch 7 and projecting outward in a ring shape. The spiral punch 7 is inserted into the hollow portion of the base punch 18 from the rear end opening of the base punch 18 so as to be pushed into the hollow portion of the base punch 18. By fitting, the base punch 18 and the spiral punch 7 are integrated, so that the spiral punch 7 cannot be pulled out from the base punch 18 easily. Then, while the outer peripheral surface of the base punch 18 is held, the spiral punch 7 is moved in the axial direction of the base punch 18 by the fitting state of the locking ridge 14 and the ring-shaped recess provided in the hollow portion of the base punch 18 . can be easily rotated around the axis of rotation. As a result, the replaceable cosmetic tool 1 as a basic form according to the present invention is assembled, and it is inserted into the cylindrical cosmetic tool body and the cylindrical cap to form the replaceable cosmetic tool 1 with various designs. can be done. The cosmetic tool body to which the spiral punch 7 is attached is configured to interlock with the rear end knob 16 of the spiral punch 7, so that when the cosmetic tool body is rotated, the spiral punch 7 is rotated. .

Here, after assembling the cosmetic tool 1 with replaceable lead according to the present invention, the outer peripheral surface of the base punch 18 exposed on the tip end side is held while the outer peripheral surface of the base punch 18 exposed on the tip side is held with the axial direction of the cosmetic tool main body as the rotation axis. Rotate the body. Then, the helical punch 7 can be rotated, and by this rotation, the lead 4 attached to the lead chuck member 5 can be smoothly protruded from the tip opening of the base punch 18 or retracted into the base punch 18. I can.

In the present invention, when the spiral punch 7 is continuously rotated to project the core 4 from the tip opening of the base punch 18, the core chuck member 5 itself is positioned at the tip of the base punch 18 as shown in FIG. It is configured so as not to protrude significantly from the opening. That is, the guide projection 15 stays at the spiral groove starting portion 30 and the guide projection 15 repeats the rotating motion at the spiral groove starting portion 30 . In this manner, the guide projection 15 and the lead chuck member 5 merely rotate repeatedly and do not protrude from the tip opening of the base punch 18 any more.

By the way, the lead gripping piece portion 12 constituting the lead chuck member 5 has, for example, a cylindrical base portion 11 at the tip of the advancing/retreating rod 9. Also, it has a plurality of core gripping pieces 10 erected upward.

1, 2, and 3, the distal ends of the plurality of core gripping pieces 10 are curved outward, and the inner periphery of the core gripping pieces 10 extends toward the distal end. The surface is shaved and thinned, and this portion is configured as an insertion guide slot 17 into which a particularly soft core 4 can be easily inserted into a core insertion space configured by being surrounded by a plurality of core gripping pieces 10 (Fig. 1, 2 and 3).

Therefore, when inserting the soft core 4 into the insertion guide slot 17, the soft core 4 can be pushed until it touches the upper surface of the base 11 without damaging it. A predetermined interval is provided between the plurality of core gripping pieces 10, so that each core gripping piece 10 stands independently.

The lead gripping piece 10 is erected with flexibility so that it can be easily bent to the inside and outside of the insertion space. 4 can be attached without damaging the soft core.

Projections 13 protruding outward are provided on the outer peripheral surface side of the plurality of core gripping pieces 10, and when the plurality of core gripping pieces 10 enter the hollow portion of the base punch 18, the projections 13 are projected as described above. It abuts against the cavity wall. Then, each lead gripping piece 10 narrows inward, so that the gripped lead 4 can be fitted more firmly.

Furthermore, ribs 26 extending in the longitudinal direction of the core gripping piece 10 for preventing core slippage are provided on the inner peripheral surface of each core gripping piece 10, and the core 4 gripped by the ribs 26 is further strengthened. and prevents the soft core 4 from coming off without damaging it. It is also assumed that the protrusions 13 and ribs 26 described above are not provided. It is assumed that the lead 4 is attached to the lead gripping member 8 in advance.

As already described, after the lead chuck member 5 with the lead 4 mounted thereon is inserted into the spiral punch 7, the spiral punch 7 with the lead chuck member 5 is fitted into the hollow portion of the base punch 18, and the basic shape is formed. A cosmetic tool having a replaceable core is formed, and the cosmetic tool main body and the cylindrical cap are attached to the basic type of cosmetic tool having an replaceable core, and the assembly of the cosmetic tool 1 having various designs is completed.

Next, a method for exchanging the replacement core 4 in the cosmetic tool of the present invention will be described. As shown in FIG. 1, the replaceable cosmetic tool 1 is held upright in a substantially vertical direction. Then, the cosmetic tool main body configured to interlock with the rear end knob 16 of the spiral punch 7 is rotated. Then, as shown in FIG. 1, the base 11 of the core gripping piece 12 of the core gripping member 8 can be protruded from the open end of the base punch 18 until it is exposed.

After the base 11 of the core gripping piece 12 is exposed to the above-described location, even if the cosmetic tool body is further rotated, the base 11 of the core gripping piece 12 will not protrude further. This is because, as described above, the guide projection 15 only rotates and slides at the spiral groove starting portion 30 and does not rise further in the hollow portion of the spiral punch 7 .
The shortened lead 4 is removed from the lead gripping piece 12 by projecting and exposing in this way.
After removing the shortened core 4, a replacement core 4 is inserted. Then, the lead 4 is smoothly fitted into the lead gripping piece portion 12. - 特許庁

As described above, the core 4 is fitted into the core gripping piece 12 and attached, and the cosmetic tool main body interlocked with the rear end knob 16 is rotated in the opposite direction. Then, the guide projection 15 moves inside the spiral groove 6 and the core gripping member 8 is retracted to the far side of the spiral punch 7. - 特許庁
In use, the core 4 is protruded by an appropriate length from the tip opening of the base punch 18 , which serves as the tip of the pen, and is used as an eyebrow, eyeliner, or the like.

As described above, the lead chuck member 5 to which the lead 4 is attached does not swing in the longitudinal direction of the lead chuck member 5 during use as an eyebrow, eyeliner, or the like. Makeup cannot be applied if the core 4 moves during use. In the present invention, during use, the guide protrusion 15 of the lead chuck member 5 is always positioned within the spiral groove 6 formed by the upper spiral protrusion 29 and the lower spiral protrusion 29, and the longitudinal direction of the lead chuck member 5 is maintained. This is because movement in the direction is blocked.

By the way, when the core 4 becomes extremely short due to use and must be replaced, when only the core 4 is to be replaced, as described above, the cosmetic tool is placed in a substantially vertical direction and the tip of the base punch 18 is Through the opening, as shown in FIG. 1, the base 11 of the lead gripping piece 12 of the lead gripping member 8 is exposed. In this way, the shortened lead 4 in the protruding lead gripping piece 12 is taken out. However, when the lead 4 is taken out, it is necessary to clean the exposed upper surface of the lead gripping piece 12 and the base 11 to remove the residue of the lead 4 . The present invention has also solved this problem.
In other words, although the example in which only the lead 4 is replaced has been described above, the present invention is not limited to this.

As shown in FIG. 4, the replacement lead 4 is sold with the lead chuck member 5 attached in advance. This is because we thought that selling only the replacement wick 4 and having the customer replace only the replacement wick 4 would be a heavy burden on the customer.

The first problem is that the user's fingers get dirty. This is because the replacement lead 4 itself must be directly grasped by hand to carry out the replacement work. Secondly, after removing the shortened lead 4, it is necessary to clean the upper surface of the lead gripping piece 12 and the base 11 to remove the residue of the lead 4. - 特許庁This is because the user himself/herself has to perform the cleaning work. Then, when removing the remaining portion of the core 4, a tool such as a toothpick must be used. This is because there is a risk that the lead gripping piece 12 may be damaged by the tool such as the toothpick.

Therefore, the present inventor prepared a replacement set for the replacement lead 4 in a state in which the replacement lead 4 was attached to the lead chuck member 5 in advance, and sold it separately. The replaceable lead 1 of the present invention has a structure in which even a user can easily remove the lead chuck member 5 to which the shortened lead 4 is attached, and the replacement lead 4 is attached in advance. In addition, the structure is such that the lead chuck member 5 itself can be easily replaced.

How to replace it will be explained.
First, the cosmetic tool 1 with replaceable lead of the present invention is held upright. As a matter of course, the tip opening of the base punch 18 , which is the tip of the pen, is on the tip side.

With respect to the lead chuck member 5 with the shortened lead 4, the guide projection 15 is spirally moved from the spiral protrusion 29 until it is positioned at the spiral groove starting portion 30 by a rotating operation. Then, the fitting state between the guide protrusion 15 and the spiral groove 6 formed by the spiral ribs 29 located above and below is eliminated. That is, since the helical ridge 29 positioned above the guide projection 15 also disappears, it is impossible to prevent the guide projection 15 from being pulled upward from the helical punch 7 . Therefore, the lead chuck member 5 can be easily removed from the helical punch 7 .

Thus, the shortened lead chuck member 5 itself can be grasped and smoothly removed from the spiral punch 7 and further from the base punch 18 without directly touching the shortened lead 4.例文帳に追加

In this way, the consumer does not get his hands dirty because there is no fear of touching the wick 4. - 特許庁In addition, there is no need to clean the lead gripping member 8 to remove the residue of the lead 4 . This is because the lead chuck member 5 is also replaced.

Here, regarding the sale of a set of only the replacement lead 4 and the sale of a set of the lead chuck member 5 to which the replacement lead 4 is attached, the lead chuck member 5 itself can be manufactured and sold at a very low cost, so the price is low. It is the same as the case where only the replacement lead 4 is sold.

The user takes out the lead chuck member 5 to which the replacement lead 4 previously purchased separately is attached, holds the replaceable lead cosmetic 1 in a substantially vertical direction, and pulls the replacement lead 4 from the tip end of the base punch 18 . The attached lead chuck member 5 is dropped and inserted. The insertion is performed from the side on which the guide projections 15 are provided (see FIG. 7).

Here, on the inner peripheral surface of the hollow portion of the base punch 18 , a guide concave groove is formed in the longitudinal direction of the base punch 18 at a predetermined interval in the sliding direction so that the guide projections 15 can slide loosely and fall smoothly. , so that the guide protrusions 15 can be inserted into the base punch 18 along the guide grooves and in the tip opening of the helical punch 7 in a positive manner.

It is also possible to increase the diameter of the hole in the hollow portion of the base punch 18 so that the guide projection 15 does not get caught on the inner peripheral surface of the hollow portion of the base punch 18 . It is difficult to match the tip opening of the spiral punch 7 smoothly. This is because if the hole in the hollow portion is enlarged, the rear end portion of the advancing/retreating rod 9 swings and does not match the tip opening of the spiral punch 7 . This is the reason why the guide groove is provided on the inner peripheral surface of the hollow portion of the base punch 18 .

When inserted, the lead chuck member 5 to which the replacement lead 4 is attached drops by its own weight along the guide recessed groove in the hollow portion of the base punch 18, passes through it, enters the hollow portion of the spiral punch 7, and forms a spiral. A guide projection 15 is loosely engaged with a spiral groove starting portion 30 provided at a position slightly lower than the upper end portion of the punch 7 and engaged. As a result, the lead chuck member 5 to which the replacement lead 4 is attached is held within the helical punch 7 .

When the spiral punch 7 is rotated in this state, the guide protrusion 15 of the core chuck member 5 rotates and smoothly spirally slides in the spiral groove 6 connected to the spiral groove starting portion 30, thereby moving the spiral punch. It moves to the far side of the spiral punch 7 while spirally rotating inside 7. - 特許庁

When the lead chuck member 5 is sufficiently accommodated in the base punch 18, the cosmetic tool with a new lead 4 attached thereto can be replaced with a lead, and can be used again like a new one.

1 Cosmetic Tool 4 Lead 5 Lead Chuck Member 6 Spiral Groove 7 Spiral Punch 8 Lead Gripping Member 9 Retractable Rod 10 Lead Gripping Part 11 Base 12 Gripping Piece 13 Projection 14 Locking Projection 15 Guide Projection 16 Rear End Knob 18 Base Punch 26 Rib 29 Spiral ridge 30 Spiral groove start portion

Claims (3)

a substantially cylindrical helical punch having a helical groove formed by a helical ridge on the inner peripheral surface of the hollow portion;
an advancing/retreating rod having a fitting portion fitted into the spiral groove, the fitting portion spirally moving in the spiral groove by rotation of the spiral punch so as to advance and retreat in the longitudinal direction of the hollow portion of the spiral punch; a lead chuck member provided at the tip of the retractable rod and having a lead gripping member for mounting the lead;
The spiral punch has a base punch attached so as to be rotatable about the axis direction as a rotation axis,
The lead chuck member to which the lead is attached is detached from the spiral groove by removing the fitting portion from the spiral groove, and the lead chuck member to which a replacement lead is attached after the detachment. The core chuck member is inserted into the spiral punch, and by rotating the spiral punch, the fitting portion is fitted into the spiral groove, so that the core chuck member can be advanced and retracted in the longitudinal direction of the spiral punch within the spiral punch.
A core replaceable cosmetic tool characterized by: The configuration in which the core chuck member can move forward and backward in the spiral punch in the longitudinal direction of the spiral punch is formed by forming a spiral groove starting portion on the upper side of the hollow portion of the spiral punch and fitting the spiral groove starting portion into the spiral groove starting portion. By rotating the helical punch, the fitting portion is fitted into the helical groove to enable the core chuck member to enter the deep side of the helical punch. It is a configuration that can be pulled back to the tip side of the spiral pestle,
2. The cosmetic tool with a replaceable lead according to claim 1, characterized in that: The configuration in which the core chuck member can move forward and backward in the spiral punch in the longitudinal direction of the spiral punch is
The tip opening of the spiral punch is directed upward and held substantially vertically, the lead chuck member is inserted into the tip opening from the guide projection side of the lead chuck member, and the lead chuck member is fitted into the spiral groove starting portion. It is a configuration in which the part is loosely fitted and locked, and the spiral punch is rotated,
3. The refillable cosmetic tool according to claim 2 , characterized in that:

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