1. Field of the Invention
The present invention relates to a cosmetic pen and, more particularly, to a cosmetic pen with an applicator which can let the cosmetic liquid stored inside the cosmetic pen to flow out smoothly and to be smeared evenly.
2. Description of the Related Art
Thus, it is an objective of the present invention to overcome the aforementioned shortcoming and deficiency of the prior art by providing a cosmetic pen with an applicator specially designed for the smooth flow out of cosmetic liquid while allowing easy assembly and manufacturing of the applicator of the cosmetic pen.
To achieve the foregoing objective, a cosmetic pen of the present invention includes a pen tube, a liquid storage core received in the pen tube, and an applicator. The pen tube includes front and rear portion spaced in an axial direction. A front cylinder is mounted to the front portion of the pen tube and includes a through-hole and a ventilation slot in communication with the through-hole. The liquid storage core is received inside the pen tube and contains cosmetic liquid. The applicator is received in the front portion of the pen tube and extends through the through-hole of the front cylinder. The applicator includes a brush and a sleeve. The brush includes front and rear ends spaced in the axial direction. The sleeve includes upper and lower ends spaced in the axial direction and a receiving hole extending from the upper end through the lower end of the sleeve and receiving the brush. The front end of the brush projects out of the lower end of the sleeve, and the upper end of the sleeve is engaged in the liquid storage core. The sleeve further includes an air slot in communication with the receiving hole of the sleeve. The air slot includes front and rear sections spaced in the axial direction. The rear section of the air slot of the sleeve is disposed inside the liquid storage core, and the front section of the air slot of the sleeve is located outside the liquid storage core and in communication with the ventilation slot of the front cylinder.
In a preferred form, the brush is made of a bundle of fibers, and the sleeve is made of metal. A diameter of the rear end of the brush is larger than a diameter of the receiving hole of the sleeve so that the rear end of the brush is positioned on the upper end of the sleeve. A cover portion extends upward from the upper end of the sleeve and is bent downward to cover the rear end of the brush.
Preferably, the air slot extends in the axial direction and has an axial length of 15%-35% of an overall length of the sleeve in the axial direction.
The present invention will become clearer in light of the following detailed description of an illustrative embodiment of this invention described in connection with the drawings.
The illustrative embodiment may best be described by reference to the accompanying drawings where:
A cosmetic pen according to the preferred teachings of the present invention is shown in
The present invention relates more particularly to the structure of the applicator 32. The applicator 32 includes a brush 50 made of a bundle of fibers, and a sleeve 52 made of metal. The fibers for the brush 50 can be of such as cotton, linen, silk, etc., and long and fine woolen fibers would be preferable. The brush 50 includes front and rear ends 56 and 54 spaced in the axial direction. The rear end 54 of the brush 50 is connected together and has an enlarged diameter, while the front end 56 of the brush 50 is formed in a tip shape. The sleeve 52 includes upper and lower ends 58 and 60 spaced in the axial direction and a receiving hole 62 extending from the upper end 58 through the lower end 60 of the sleeve 52. The sleeve 52 further includes an air slot 64 in communication with the receiving hole 62 and extending in the axial direction. The air slot 64 includes front and rear sections 68 and 70 spaced in the axial direction (
Referring to
Referring to
Preferably, the air slot 64 extends in the axial direction and has an axial length of 15%-35% of an overall length of the sleeve 52 in the axial direction. It may not be smooth for the cosmetic liquid to flow out from the applicator 32 if the axial length ratio of the air slot 64 to the sleeve 52 is less than 15%. The amount of cosmetic liquid soaked in the brush 50 may be too much if the axial length ratio of the air slot 64 to the sleeve 52 is more than 35%.
The cosmetic pen 30 of present invention includes a specially designed applicator 32 so that the cosmetic liquid soaked in the brush 50 can be delivered and flowed smoothly without clogging. Moreover, the assembly of the brush 50 and the sleeve 52 of the applicator 32 is convenient; therefore, the cosmetic pen 30 is easy to manufacture, and the cost for manufacturing, assembling, and labor are cut. Further, the powder of the cosmetic liquid does not adhere on the metal sleeve 52, thus, the nature of the cosmetic liquid flowed out from the applicator 32 will not become thin or be diluted after a certain period of usage of the cosmetic pen 30.
Thus since the invention disclosed herein may be embodied in other specific forms without departing from the spirit or general characteristics thereof, some of which forms have been indicated, the embodiments described herein are to be considered in all respects illustrative and not restrictive. The scope of the invention is to be indicated by the appended claims, rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein.