Rod-shaped cosmetic material feeding container

Patent metadata

Field	Value
Publication number	US-11510479-B2
Application number	US-202117408144-A
Country	US
Kind code	B2
Filing date	Aug 20, 2021
Priority date	Aug 21, 2020
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A rod-shaped cosmetic material feeding container 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 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 screw includes a slope and a female screw. The mechanism portion includes a lead holder, an ejection rod, and a propelling rod. The sleeve has an advancing limit reached by the lead holder of the mechanism portion fed out by a screwing action of the female screw and a male screw when the sleeve and the barrel are rotated relative to each other.

First claim

What is claimed is:

1. A rod-shaped cosmetic material feeding container comprising:
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 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,
wherein the screw includes:
a slope that is provided at a rear portion of the screw; and
a female screw that is provided on an inner periphery on a rear side of the screw in an axial direction,

wherein the mechanism portion includes:
a lead holder that includes a core gripping portion 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, including a rod-shaped portion that extends forward in the axial direction, and engaged with the lead holder so as to be synchronously rotatable and movable in the axial direction; and
a propelling rod that has 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,

wherein the sleeve has an advancing limit 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 in a given direction,
wherein 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
wherein when the sleeve and the barrel are further relatively rotated in the given direction, by making a protrusion provided inside the barrel abut against the slope to push the slope forward, the propelling rod and the ejection rod are fed out, and the rod-shaped portion of the ejection rod enters the core gripping portion of the lead holder.

2. The rod-shaped cosmetic material feeding container according to claim 1 ,
wherein the screw further includes a spring portion that expands and contracts in the axial direction, and
wherein the mechanism portion further includes a compression spring that is disposed between the lead holder and the ejection rod.

3. The rod-shaped cosmetic material feeding container according to claim 1 ,
wherein 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 when the protrusion of the barrel abuts against and moves from a start portion to an end portion of the slope.

4. The rod-shaped cosmetic material feeding container according to claim 2 ,
wherein one or a plurality of the slopes are provided along a circumferential direction of the screw, and
wherein when the abutment of the protrusion of the barrel with the slope exceeds an end portion of the slope, the protrusion of the barrel moves to a start portion of the slope, and the rod-shaped portion of the ejection rod retreats until exiting from the core gripping portion by an urging force of the compression spring.

5. A rod-shaped cosmetic material feeding container comprising:
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,
wherein 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,

wherein 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,
wherein 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,
wherein 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, and
wherein 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.

6. The rod-shaped cosmetic material feeding container according to claim 5 ,
wherein 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 when the protrusion of the barrel abuts against and moves from a start portion to an end portion of the slope.

7. The rod-shaped cosmetic material feeding container according to claim 5 ,
wherein one or a plurality of the slopes are provided along a circumferential direction of the screw, and
wherein when the abutment of the protrusion of the barrel with the slope exceeds an end portion of the slope, the protrusion of the barrel moves to a start portion of the slope, and the rod-shaped portion of the ejection rod retreats until exiting from the core gripping portion by an urging force of the compression spring.

Assignees

• Tokiwa Corp

Inventors

• Sasaki Arata
• Haruyama Akira

Classifications

• A45D40/205 Primary

  Holders for stick-shaped cosmetics whereby the stick can move axially relative to the holder (casings for lipstick A45D40/02, A45D40/06; refill sticks or moulding devices for producing sticks A45D40/16) · CPC title

• A45D2200/1072

  Eyeliners · CPC title

• A45D2040/208

  the relative movement being made by a rotating action, e.g. effected by a screw · CPC title

• A45D40/14

  Casings with ejector for waste stick or the like · CPC title

• A45D40/20

  Pencil-like cosmetics; Simple holders for handling stick-shaped cosmetics or shaving soap while in use · CPC title