Abstract: A mechanism for feeding a core material such as a stick type cosmetic material includes an internal thread member having a spirally grooved inner surface and a push rod provided with a group of protrusions which engage with the spiral groove of the internal thread member; wherein the push rod is advanced or retracted by turning the internal thread member and the push rod engaged therewith relative to each other to feed the core material housed in a container to be slidably moved the push rod. Since the protrusions on the surface of the push rod can be of a simple shape, the push rod can be produced easily, and this effect manifests particularly in a comparison with the case where a thread must be formed on the push rod over the entire length thereof, requiring laborious thread machining or die making.

Abstract: The invention provides a cosmetic container which allows the cosmetic-loaded cartridge to be freely inserted into and removed from the container body featuring the provision of the following; an internal cylinder which has a spiral groove over the inner circumferential surface and is placed inside the container body; a push rod which moves in the axial direction inside the inner cylinder under the guidance of the spiral groove; a coil spring which loads the push rod in the retracting direction; a chuck which holds the cosmetic and which can be inserted by sliding into a slit guide cylinder inside the cartridge which can be freely inserted into the container body in the axial direction; a coil spring which forces the chuck into the innermost position; and inner spline teeth provided on the internal circumference of the guide cylinder and coupled to the projecting members on the external circumferential surface of the push rod, where the push rod moves forward under the guidance of the spiral groove following t

Abstract: A cosmetic container for containing a bar-shaped cosmetic material, wherein a helical body is provided having on the top hereof a portion to which the bar-shaped cosmetic material is attached, said helical body being contained in a guide cylinder so that it does not rotate but only freely slides in the axial direction, and wherein a rotary rod having sliders slidably engaging with the helical groove of said helical body is coaxially placed within said helical body and provided so that it does not axially travel relative to said guide cylinder, whereby a feed motion is applied by rotation of the rotary rod on the helical body through the sliders to upwardly and downwardly move the cosmetic material along the inner periphery of the guide cylinder.