Rod-shaped cosmetic material feeding container

Patent metadata

Field	Value
Publication number	US-9788635-B2
Application number	US-201615196199-A
Country	US
Kind code	B2
Filing date	Jun 29, 2016
Priority date	Jul 1, 2015
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A rod-shaped cosmetic material feeding container in which a leading tube and a container main body are relatively rotated in one direction, an action of a screw part moves a rod-shaped cosmetic material supporting body to reach a movement limit, and then the leading tube and the container main body are further relatively rotated in the one direction. With movement of the rod-shaped cosmetic material supporting body stopped, while a spring portion in a rotation stopper tube shrinks, the screw part screws forward to release screwing of the screw part. Additionally, the movement of the rod-shaped cosmetic material supporting body is stopped and therefore the rod-shaped cosmetic material supporting body does not move back and forth in an axial direction. Accordingly, a rod-shaped cosmetic material does not move back and forth in the axial direction as well, thereby ensuring minimizing an impact to the rod-shaped cosmetic material.

First claim

What is claimed is:

1. A rod-shaped cosmetic material feeding container comprising:
a tubular container that has a front container part and a rear container part;
a movable body engaged with the front container part in a rotation direction around an axis line, the movable body being movable in an axial direction, the movable body supporting a rod-shaped cosmetic material at a distal end and including a male screw at an outer peripheral portion; and
a rotation stopper tube rotatable with respect to the front container part around the axis line, the rotation stopper tube being synchronously rotatable with respect to the rear container part around the axis line, the rotation stopper tube including a female screw at an inner peripheral portion, the female screw being screwed with the male screw, wherein:
a relative rotation of the front container part and the rear container part works a screw part constituted of the male screw and the female screw to advance and retreat the movable body, the relative rotation causes the rod-shaped cosmetic material to appear and disappear from an opening at a distal end of the container,
the rotation stopper tube includes a spring portion expandable and contractible in the axial direction, and
if the front container part and the rear container part are relatively rotated in one direction, the movable body moves and reaches a movement limit, and the front container part and the rear container part are further relatively rotated in the one direction, the screw part screws forward while the spring portion shrinks with the movement of the movable body stopped to release the screwing of the screw part.

2. The rod-shaped cosmetic material feeding container according to claim 1 , wherein
the movement limit is at least one of a forward limit and a backward limit.

3. The rod-shaped cosmetic material feeding container according to claim 2 , wherein:
the movable body includes a thin-diameter portion positioned adjacent to an end portion of the male screw, the thin-diameter portion having an outer diameter smaller than an inner diameter of the female screw, and
if the movable body moves and reaches the movement limit and the front container part and the rear container part are further relatively rotated in the one direction, while the spring portion shrinks, the screw part screws forward and the female screw reaches the thin-diameter portion with the movement of the movable body stopped to release the screwing of the screw part.

4. The rod-shaped cosmetic material feeding container according to claim 3 , wherein
if the front container part and the rear container part are relatively rotated at a first rotating torque in another direction, the movable body moves and reaches another movement limit opposite from the movement limit, and then the front container part and the rear container part are further relatively rotated at a second rotating torque larger than the first rotating torque in the other direction, a synchronous rotation between the rotation stopper tube and the rear container part around the axis line is released.

5. The rod-shaped cosmetic material feeding container according to claim 4 , wherein:
the rear container part includes a plurality of ribs extending in the axial direction at an inner peripheral portion,
the rotation stopper tube includes a rotation stopper vent portion, the rotation stopper vent portion including a convex portion projecting radially outward, the rotation stopper vent portion having flexibility in a direction along a radial direction,
engaging the convex portion between the ribs which are adjacent ensures a synchronous rotation with respect to the rear container part around the axis line, and
when the movable body reaches the other movement limit and then the front container part and the rear container part are further relatively rotated in the other direction at the second rotating torque, while the rotation stopper vent portion bends radially inward, the rotation stopper tube relatively rotates with respect to the rear container part around the axis line and the convex portion exceeds the rib and releases the engagement to release the synchronous rotation between the rotation stopper tube and the rear container part around the axis line.

6. The rod-shaped cosmetic material feeding container according to claim 3 , wherein
with the screwing of the screw part released, an elastic force by the shrunk spring portion biases the female screw to the male screw.

7. The rod-shaped cosmetic material feeding container according to claim 6 , wherein
if the front container part and the rear container part are relatively rotated at a first rotating torque in another direction, the movable body moves and reaches another movement limit opposite from the movement limit, and then the front container part and the rear container part are further relatively rotated at a second rotating torque larger than the first rotating torque in the other direction, a synchronous rotation between the rotation stopper tube and the rear container part around the axis line is released.

8. The rod-shaped cosmetic material feeding container according to claim 7 , wherein:
the rear container part includes a plurality of ribs extending in the axial direction at an inner peripheral portion,
the rotation stopper tube includes a rotation stopper vent portion, the rotation stopper vent portion including a convex portion projecting radially outward, the rotation stopper vent portion having flexibility in a direction along a radial direction,
engaging the convex portion between the ribs which are adjacent ensures a synchronous rotation with respect to the rear container part around the axis line, and
when the movable body reaches the other movement limit and then the front container part and the rear container part are further relatively rotated in the other direction at the second rotating torque, while the rotation stopper vent portion bends radially inward, the rotation stopper tube relatively rotates with respect to the rear container part around the axis line and the convex portion exceeds the rib and releases the engagement to release the synchronous rotation between the rotation stopper tube and the rear container part around the axis line.

9. The rod-shaped cosmetic material feeding container according to claim 2 , wherein
if the front container part and the rear container part are relatively rotated at a first rotating torque in another direction, the movable body moves and reaches another movement limit opposite from the movement limit, and then the front container part and the rear container part are further relatively rotated at a second rotating torque larger than the first rotating torque in the other direction, a synchronous rotation between the rotation stopper tube and the rear container part around the axis line is released.

10. The rod-shaped cosmetic material feeding container according to claim 9 , wherein:
the rear container part includes a plurality of ribs extending in the axial direction at an inner peripheral portion,
the rotation stopper tube includes a rotation stopper vent portion, the rotation stopper vent portion including a convex portion projecting radially outward, the rotation stopper vent portion having flexibility in a direction along a radial direction,
engaging the convex portion between the ribs which are adjacent ensures a synchronous rotation with respect to the rear container part around the axis line, and
when the movable body reaches the other movement limit and then the front container part and the rear container part are further relatively rotated in the other direction at the second rotating torque, while the rotation stopper vent porti

Assignees

• Tokiwa Corp

Inventors

• Tani Yoshikazu

Classifications

• A45D40/10 Primary

  Casings wherein a spring presses the lipstick or like solid into the position for use or into the retracted position · CPC title

• A45D40/20

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

• A45D40/06 Primary

  Casings wherein movement of the lipstick or like solid is a screwing movement · CPC title

• A45D40/12

  Casings with provision for preventing undesired movement of the stick (A45D40/10 takes precedence) · CPC title