Coating implements with material supply – Solid material for rubbing contact or support therefor – Including means to advance material
Reexamination Certificate
1996-05-29
2001-06-12
Chapman, Jeanette (Department: 3711)
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including means to advance material
Reexamination Certificate
active
06244769
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The present invention relates to a stick cosmetic container.
(2) Description of the Prior Art
A conventionally known stick cosmetic container converts a forward movement of a clicking member obtained by clicking the tail end of the container into a rotary movement of a rotor by a cam mechanism (a clicking mechanism of this type will be referred to as a cam type clicking mechanism hereinafter) and draws out a stick cosmetic forward from the front end of the container in accordance with a screw movement.
For example, Japanese Patent Application Laid-open Sho 63 No. 31609 discloses a technique for extending or extracting a cosmetic stick held by a cosmetic tray by clicking a clicking member at the tail end of the container forward. However, since the cosmetic moves only forward upon clicking, if the cosmetic stick is excessively extended for use more than necessary, the length of the extended portion of the cosmetic stick cannot be adjusted to an appropriate length. Also, since the cosmetic stick stays exposed from the container body, a cap is necessary for protecting the exposed cosmetic stick when the cosmetic container is stored.
In Japanese Patent Publication Hei 2 No. 32883, Japanese Utility Model Application Laid-open Hei 1 No. 79410, Japanese Utility Model Application Laid-open Sho 63 No. 139813 and the like, a cosmetic stick can be extended and can be retracted (to be stored in the container) by a cam type clicking mechanism of the type described above.
In Japanese Patent Publication Hei 2 No. 32883 described above, the cosmetic stick is extended by a three-split collet chuck, and the entire mechanism of the collet chuck is moved forward and backward by the cam type clicking mechanism. When the cosmetic stick is not in use, the projecting portion of the pivotal cam cylinder of the cam type clicking mechanism is set on the retracting side of the groove of a stationary cam, thereby storing the cosmetic stick in the cosmetic stick cylinder. In Japanese Utility Model Application Laid-open Hei 1 No. 79410 described above, the cosmetic stick is extended in accordance with the screw movement, and the cosmetic stick is moved forward and backward (to be stored) by using the cam type clicking mechanism. In the extending container of Japanese Utility Model Application Laid-open Sho 63 No. 139813 described above, a rod-shaped cosmetic stick can be moved forward and extracted in accordance with a clicking operation by utilizing the cam type clicking mechanism.
However, in the conventional stick cosmetic container capable of moving a cosmetic stick forward and backward, although the cosmetic stick is moved forward for the same length as the clicking stroke every time clicking is performed, when clicking is stopped (when the clicking member is restored to the initial position by a spring), the cosmetic stick is undesirably moved backward simultaneously. Therefore, although a small forward-movement amount corresponding to one clicking operation set by the cam type clicking mechanism can be obtained, every time clicking is performed, the cosmetic stick repeats the forward/backward movement almost corresponding to one clicking stroke. In this case, when the distal end of the cosmetic stick stays in the container, no problem will arise. When, however, the cosmetic stick is located near the mouth which is close to a position where the cosmetic stick can be used, every time clicking is performed, the cosmetic stick repeats an unnatural movement of protruding and retracting from the mouth for almost one stroke. This motion seems unnatural to the user and is not very preferable for a cosmetic goods. Also, as the exposed length of the cosmetic stick is large, the cosmetic stick tends to break easily.
SUMMARY OF THE INVENTION
The present invention has been achieved in view of the above problems, and has as its object to provide a stick cosmetic container capable of smoothly obtaining a necessary extension length of a cosmetic stick by eliminating the unnatural, meaningless forward/backward movement of the cosmetic stick upon a clicking operation and capable of easily storing the cosmetic stick in a cartridge as required.
As the result of extensive studies, the present inventors combined a cam type clicking mechanism and a screw movement, allowed a driving force that acts forward upon a clicking operation to be transmitted to the cosmetic stick only as a rotational force, and enabled the cosmetic stick to be extended and retracted also with a screw movement through a rotating operation separate from the clicking operation, thereby solving the above problems.
More specifically, the first gist of the present invention resides in a stick cosmetic container comprising a cartridge for detachably holding a stick cosmetic and a container body on which the cartridge is mounted, characterized in that the cartridge mainly comprises a substantially cylindrical cartridge body and a holder for detachably holding the cosmetic stick at a front portion thereof to be disposed in the cartridge body and movable forward and backward in accordance with a screw movement when being rotated with respect to the cartridge body, the container body comprises; an outer cylinder, a clicking member, a clicking spring, a rotor, a driving spring, and a rotation rod, wherein the outer cylinder rotatably holding the cartridge body, the clicking member moving forward and backward in the outer cylinder upon being clicked, the clicking spring urging the clicking member backward, the rotor being restrained from rotating when a clicking operation is not performed, while the rotor being rotated when the clicking operation is performed through a predetermined angle by a cam mechanism converting a driving force of the clicking member into a rotational force while moving forward together with the clicking member, the driving spring urging the rotor backward, and the rotation rod being disposed in the outer cylinder to transmit a rotational force of the rotor to the holder and rotating the holder when the rotor is rotated; wherein at least the holder among the holder and the rotor is movable forward/backward with respect to the rotation rod, and the holder rotates, when the clicking operation is performed, through a predetermined angle upon reception of the rotational force from the rotor through the rotation rod to move forward in accordance with the screw movement, and becomes movable forward/backward when the clicking operation is not performed, upon rotation of the cartridge body with respect to the outer cylinder.
The second gist of the present invention resides in a stick cosmetic container according to the first gist of the invention, characterized in that the rotation rod has an outer flange constrained in a space defined between a front surface of an inner flange provided to an inner circumferential surface of the outer cylinder and a rear surface of a stopper incorporated in the outer cylinder.
The third gist of the present invention resides in a stick cosmetic container according to the first gist of the invention, characterized in that a portion of the rotation rod which corresponds to at least a movable range of the rotor has a polygonal section, and a through hole of the rotor also has a polygonal inner shape.
The fourth gist of the present invention resides in a stick cosmetic container according to the first gist of the invention, characterized in that a forward movement of the rotation rod is regulated by a tension spring provided between a clicking cap fitted in a rear end of the clicking member and the rotation rod.
The fifth gist of the present invention resides in a stick cosmetic container according to the first gist of the invention, characterized in that a holder lock is fitted in a rear end of the cartridge body.
The sixth gist of the present invention resides in a stick cosmetic container according to the fifth gist of the invention, characterized in that a guide cylinder of which a forward/backward movement is regulated by a front end face of the holder lock i
Endou Mitsuru
Nakajima Nobuyuki
Chambers M.
Chapman Jeanette
Darby & Darby
Mitsubishi Pencil Kabushiki Kaisha
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