CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Japanese Patent Applications No. 2020-140198 filed on Aug. 21, 2020, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a rod-shaped cosmetic material feeding container.

BACKGROUND

In the related art, there has been a rod-shaped cosmetic material feeding container that feeds out a rod-shaped cosmetic material to be used in which the rod-shaped cosmetic material is replaced with, for example, a refill container sold separately for refilling when the rod-shaped cosmetic material is consumed and replaced. In recent years, the refill container has a matter from the viewpoint of waste treatment and protection of global resources, and an ecological container is required.

Only the rod-shaped cosmetic material may be replaced without using the refill container in replacement of the rod-shaped cosmetic material, but removal of the rod-shaped cosmetic material having a small core diameter from a core chuck is complicated, and fingers may become dirty.

In a solid rod-shaped cosmetic material container described in JP-UM-B-3-8191, a screw rod capable of advancing and retreating and a hollow tubular chuck guide advancing and retreating together with the screw rod are lowered to a most end position, a flat plate-shaped core chuck is put on an upper base of the screw rod to vertically stand a shaft tube, a space surrounded by the upper base of the screw rod, the flat plate-shaped core chuck, and the hollow tubular chuck guide is filled with a muddy or kneaded cosmetic material, and the cosmetic material is not only placed on the core chuck, but also enters a back surface of the core chuck through a penetrated hole of the core chuck, and is solidified in this state, and thus the rod-shaped cosmetic material is loaded.

In the solid rod-shaped cosmetic material container, after the rod-shaped cosmetic material protruding from the chuck guide is used up, since only the core chuck advances independently of the chuck guide and the remaining rod-shaped cosmetic material is pushed out and used, the rod-shaped cosmetic material may be used to a full extent, and the rod-shaped cosmetic material and the core chuck are discharged from the solid rod-shaped cosmetic material container by the subsequent advancing of the screw rod.

However, in JP-UM-B-3-8191, although the rod-shaped cosmetic material may be used to the full extent, the rod-shaped cosmetic material cannot be replaced since it is not originally intended to be replaced. Further, since the discharged core chuck is discarded as waste, the matter of environmental protection still remains.

Therefore, an object of the present invention is to provide a rod-shaped cosmetic material feeding container capable of discharging a rod-shaped cosmetic material without dirtying fingers and easily replacing the rod-shaped cosmetic material while protecting the environment without waste such as a refill container at the time of replacement of the rod-shaped cosmetic material.

SUMMARY OF INVENTION

A rod-shaped cosmetic material feeding container in the present invention includes a sleeve that is capable of accommodating a rod-shaped cosmetic material, a barrel that is engaged with the sleeve so as to be rotatable relative to the sleeve, a screw that is provided with a spring portion expanding and contracting in an axial direction, provided with a female screw on an inner periphery on a rear side of the screw in the axial direction of the spring portion, and disposed inside the barrel so as to be synchronously rotatable, and a mechanism portion that is accommodated inside the sleeve and the barrel and configured to feed out the rod-shaped cosmetic material. The mechanism portion includes a lead holder that includes a core gripping portion that is capable of gripping the rod-shaped cosmetic material, and is engaged with the sleeve so as to be synchronously rotatable and movable in the axial direction, an ejection rod that is disposed inside the lead holder, includes a rod-shaped portion that extends forward in the axial direction, and is engaged with the lead holder so as to be synchronously rotatable and movable in the axial direction, a propelling rod that includes a male screw screwed to the female screw on an outer periphery thereof, and is engaged with the ejection rod so as to be synchronously rotatable and immovable in the axial direction, and a compression spring that is disposed between the lead holder and the ejection rod. An advancing limit is provided in the sleeve and reached by the lead holder of the mechanism portion fed out by a screwing action of the female screw and the male screw when the sleeve and the barrel are rotated relative to each other. An engaging portion is provided on the propelling rod and configured to be engaged with the screw so as to be synchronously rotatable when the lead holder reaches the advancing limit. A slope is provided at a rear portion of the screw, against which a protrusion provided inside the barrel abuts, and is pushed forward while compressing the spring portion when the sleeve and the barrel are further relatively rotated in the same direction in a state where the engaging portion of the propelling rod is engaged with the screw so as to be synchronously rotatable. By pushing the slope, the propelling rod and the ejection rod are fed out while compressing the compression spring, and the rod-shaped portion of the ejection rod enters the core gripping portion of the lead holder.

According to the rod-shaped cosmetic material feeding container, the mechanism portion including the lead holder, the ejection rod, the propelling rod, and the compression spring is synchronously rotatable with the sleeve, the barrel and the screw are synchronously rotatable, and when the sleeve and the barrel are relatively rotated, the screwing action of the female screw of the screw and the male screw of the propelling rod is exerted to feed out the mechanism portion. When the lead holder of the mechanism portion reaches the advancing limit, the screw and the propelling rod are engaged with each other so as to be synchronously rotatable, and when the sleeve and the barrel are further rotated relative to each other in the feeding-out direction, the protrusion provided inside the barrel abuts against the slope of the screw, and the slope is pushed forward while compressing the spring portion of the screw, so that the propelling rod and the ejection rod are fed out while compressing the compression spring, and the rod-shaped portion of the ejection rod enters the core gripping portion of the lead holder. Therefore, the remaining rod-shaped cosmetic material gripped by the core gripping portion is pushed out by the rod-shaped portion of the ejection rod, and the rod-shaped cosmetic material can be discharged without dirtying fingers. In addition, a new rod-shaped cosmetic material can be easily loaded. That is, when the rod-shaped cosmetic material is replaced, there is no waste such as a refill container, and the rod-shaped cosmetic material can be easily replaced while the environment is protected. Further, since the compression spring and the spring portion of the screw are disposed in the container, the rod-shaped cosmetic material can be protected from an impact even when the impact is applied to the container.

Here, when the protrusion of the barrel abuts against and moves from a start portion to an end portion of the slope in a state where a length of the ejection rod to be fed out is equal to or greater than a core gripping length in the axial direction of the core gripping portion of the lead holder, the rod-shaped cosmetic material can be surely discharged.

Further, in a state where the rod-shaped cosmetic material feeding container has a configuration that one or a plurality of slopes are provided along the circumferential direction of the screw, the protrusion of the barrel moves to the start portions of the slopes by an urging force of the compression spring and the rod-shaped portion of the ejection rod retreats until the rod-shaped portion exits from the core gripping portion when the abutment of the protrusion of the barrel against the slopes exceeds the end portions of the slopes, the rod-shaped portion of the ejection rod exits from the core gripping portion without relatively rotating the sleeve and the barrel (screw) in a reverse direction. Therefore, the rod-shaped cosmetic material can be pushed into the core grip portion and gripped without any trouble, and the rod-shaped cosmetic can be loaded more easily.

As described above, according to the present invention, it is possible to provide the rod-shaped cosmetic material feeding container capable of easily replacing the rod-shaped cosmetic material while protecting the environment without waste such as the refill container at the time of replacing the rod-shaped cosmetic material, and capable of protecting the rod-shaped cosmetic material from an impact even when the impact is applied to the container.

