JPH0418498Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to cosmetic containers, and more specifically, the invention relates to containers for cosmetics, such as lipsticks, etc., in which a core material (hereinafter also referred to as a working element) is attached to a cylinder by rotating the cylinder. The present invention relates to a type of cosmetic container that can be inserted into and taken out from an opening of a cosmetic container.

[Prior Art] FIGS. 5 to 7 are diagrams showing various parts of one type of conventional lipstick container. In this type of container, an outer cylinder 52, an inner cylinder/base cylinder 54 into which the outer cylinder 52 is fitted, a plate (work element support) 56 disposed within the inner cylinder portion of the inner cylinder/base cylinder 54, and a cap (not shown) fitted into the outer cylinder 52. A spiral groove 58 is formed on the inner surface of the outer cylinder 52,
Further, a linear guide slit 62 along the axial direction is formed in the inner cylinder portion of the inner cylinder/base cylinder 54. On the other hand, a protrusion 64 is attached to the outer surface of the plate 56,
The protrusion 64 passes through the guide slit 62 and engages the helical groove 58 during assembly. The plate 56 is driven by the outer cylinder 52.
This is done by the relative rotation between the inner cylinder and the base cylinder 54, and the plate 56 is applied with an axial driving force through the spiral groove 58, and is also subjected to a rotation stopping and guiding action by the guide slit 62.

For containers of the above type, cap, outer cylinder 5
2. Since the inner cylinder 54, the plate 56, and the core material are arranged concentrically one on top of the other, the overall length can be shortened, but there is a drawback that the diameter becomes relatively thick.

FIGS. 8 to 10 are diagrams showing various parts of a conventional lipstick container of a different type from that described above. This type of container includes a base tube 72, a front tube 74 attached to the base tube 72, a plate (work element support) 76 disposed inside the front tube 74, and a plate 76 fitted to the front tube 74. It consists of a cap (not shown). A spiral groove 78 is formed on the inner surface of the base cylinder 72, and a linear guide slit 8 along the axial direction is formed at the rear of the front cylinder 74.
A guide tube 8 having a number 2 formed thereon is arranged in series. On the other hand, a neck portion 86 having a protrusion 84 attached to the end thereof is connected to the rear portion of the dish 76, and the protrusion 84 passes through the guide slit 82 and engages with the helical groove 78 during assembly.
The plate 76 is driven by the relative rotation between the base cylinder 72 and the front cylinder 74, and the plate 76 is applied with an axial driving force through the spiral groove 78, and is prevented from rotating and guided by the guide slit 82. be affected.

In the case of the above type of container, since the drive mechanism is located at the rear of the container, its diameter can be made relatively thin, but it is necessary to take the length of the rear drive mechanism by the stroke of the plate. This has the disadvantage that the overall length becomes longer.

[Problems to be Solved by the Invention] The present invention has been made to solve the above-mentioned drawbacks of the prior art, and provides a cosmetic container of this type that can be short in overall length and relatively thin in diameter. The purpose is to

[Means for Solving the Problems] In the present invention to achieve the above object, the working element support (pan) is driven in a dual manner. More specifically, the container according to the present invention includes a base tube, a front tube rotatably attached to the base tube, an inner rear tube disposed within the base tube, and an inner rear tube disposed within the front tube. It includes a working element support and a neck integrally connected to the rear of the working element support and disposed within the rear cylinder. The base cylinder has a first spiral groove on its inner surface. The tip tube has an opening at its tip for inserting and removing the working element, and also includes one half of the rotation stop mechanism. The inner rear cylinder has a protrusion on its outer surface that engages with the groove of the base cylinder, and a second helical groove on its inner surface.
The working element support has the other half of the rotation stop mechanism cooperating with one half of the rotation stop mechanism of the leading barrel. The neck has a protrusion on its outer surface that engages a groove in the inner rear barrel.

An opening is provided at the rear end of the base cylinder, through which the working element support can be inserted toward the front cylinder, and a slit is provided at the rear end of the neck, which is provided with a protrusion. The diameter of the rear cylinder can be reduced in this direction, and a protrusion for preventing the neck from falling off is provided at the tip of the rear cylinder.

[Function] In the container according to the present invention with the above configuration,
During assembly, first, the rear end portion of the neck integrally connected to the rear of the working element support is press-fitted into the retaining overhang of the inner rear cylinder, and the working element support and the rear cylinder are assembled. Then, this combination body is inserted into the base cylinder from the rear end opening of the base cylinder to which the front cylinder is attached, and the working element support and the front cylinder are engaged with each other in a non-rotatable manner. When the base tube and the front tube are rotated relative to each other in the assembled state, the inner rear tube is driven in the axial direction with respect to the base tube due to the engagement between the first spiral groove of the base tube and the protrusion of the inner rear tube. The working element support body is driven in the axial direction with respect to the inner rear cylinder by the engagement between the second spiral groove of the inner rear cylinder and the protrusion of the neck portion. Furthermore, the engagement between one half of the rotation stopper mechanism of the leading barrel and the other half of the rotation stopper mechanism of the work element support provides a rotation stop and guide action to the work element support.

In other words, the work element support is driven by a dual drive mechanism, and therefore the length of the drive mechanism at the rear of the container can be approximately half the stroke of the work element support. . Furthermore, since the drive mechanism is disposed at the rear of the container as in the second type of container of the prior art, its diameter can be made relatively small.

[Embodiment] FIGS. 1A to 4B are diagrams showing each component of an embodiment of a cosmetic container according to the present invention. Each part is roughly divided into a base cylinder 10, a front cylinder 20, an inner rear cylinder 30, a working element support 40, and a cap (not shown), which are molded from a synthetic resin material suitable for each part.

The base cylinder 10 has a pair of first spiral grooves 12 on its inner surface, and a diameter-reducing step 14 with a protrusion 13 for fitting a cap on the distal end side. The rear end side opening 17 of the base tube 10 is closed by a disk 16 attached to the undercut 15 after assembly.

The front tube 20 has a cylindrical outer surface, but an octagonal inner surface, and this polygonal surface 22 forms one half of a rotation stopper mechanism to be described later. The front tube 20 has a diameter-reducing stepped portion 26 on the rear end side with a claw 24 attached to the end thereof, and this stepped portion 26 is inserted into the distal end side of the base tube 10. In the inserted state, the pawl 24 engages with the protrusion 18 on the inner surface of the base tube 10, and moves the front tube 20 into the base tube 10.
It is held in a state where it is rotatable relative to each other and prevented from being separated from each other. Further, a slight protrusion 29 is formed around the opening 28 at the tip of the leading tube 20 for inserting and removing the working element, and this serves as a stopper at the end of the stroke of the working element support 40, which will be described later.

The inner rear cylinder 30 has a pair of protrusions 32 on the rear end of the outer surface, and both the protrusions 32 are connected to the pair of first spiral grooves 12 of the base cylinder 10 in the assembled state in which the rear cylinder 30 is installed in the base cylinder 10. engage. Further, the rear cylinder 30 has a pair of second spiral grooves 34 on its inner surface, and a protrusion 36 for preventing slippage is formed at the tip.

The working element support 40 has a dish shape with an octagonal outer surface that matches the octagonal inner surface of the front cylinder 20, and this polygonal surface 42 forms the other half of the rotation stop mechanism described later. Further, a neck portion 44 is integrally connected to the rear of the working element support 40, and a pair of slits 47 are formed in the axial direction at the rear end of the neck portion 44, and a pair of protrusions 46 are attached.
Both protrusions 46 engage with the pair of second helical grooves 34 of the rear cylinder 30 in an assembled state in which the neck portion 44 is installed within the inner rear cylinder 30 .

An example of the method for assembling the above-mentioned cosmetic container is as follows:
is attached to the base tube 10, while the work element support 40 is attached to the base tube 10.
By press-fitting the rear end portion of the neck portion 44 into the overhanging portion 36 of the inner rear cylinder 30, the support body 40 and the rear cylinder 30 are
This combination is inserted into the base tube 10 from the rear end opening 17 of the base tube 10 to which the front tube 20 is attached, and then the opening 17 is closed with the disc 16. .

In the assembled completed state, the base tube 10 and the front tube 20
When these are rotated relative to each other, the inner rear cylinder 30 is driven in the axial direction with respect to the base cylinder 10 due to the engagement between the first spiral groove 12 of the base cylinder 10 and the protrusion 32 of the inner rear cylinder 30. At the same time, the working element support 40 is also driven in the axial direction with respect to the inner rear cylinder 30 due to the engagement between the second spiral groove 34 of the inner rear cylinder 30 and the protrusion 46 of the neck portion 44 . Further, the working element support body 40
Due to the engagement between the polygonal surface 22 that is one half of the rotation stopper mechanism of the working element support 40 and the polygonal surface 42 that is the other half of the rotation stopper mechanism of the work element support 40, substantial idle rotation is achieved. While being prevented from rotating, it is reliably guided along the axial direction. The stroke of the working element support 40 is such that from the drawn-out position where the distal end edge of the support body 40 collides with the peripheral overhang 29 of the distal end opening 28 of the front tube 20, the stroke of the inner rear tube 30 and the rear end of the neck portion 44 is It reaches a retracted position where it collides with the disc 16 of the base cylinder 10.

[Effects of the invention] According to the cosmetic container according to the invention, as described above, during assembly, the driving portion consisting of the working element support and the inner rear cylinder is inserted from the rear end opening of the base cylinder, and the operation Since the element support body and the front tube are directly engaged with each other, the number of parts is small and assembly is possible very easily. Further, in the assembled state, the working element support body 40 has the first spiral groove 12 and the rear cylinder 3.
It is driven by a double engagement of the engagement with the protrusion 32 of 0 and the engagement of the second helical groove 34 with the protrusion 46 of the neck portion 44. That is, since the drive mechanism at the rear of the container is of a double type, the length of the drive mechanism can be formed to be approximately half the stroke of the working element support 40, and the total length of the container is longer than that of the prior art. It is shorter than the container of type 2.

Further, like the second type of conventional container, since the drive mechanism is disposed at the rear of the container, its diameter can be made relatively small.

[Brief explanation of the drawing]

1A to 4B are diagrams showing each part of an embodiment of the cosmetic container according to the present invention. 2B and 2B are a longitudinal sectional side view and a bottom view showing the front tube, respectively, FIG. 3 is a longitudinal sectional side view showing the inner rear tube, and FIGS. 4A and 4B are a longitudinal sectional side view and bottom view showing the working element support body, respectively. FIGS. 5 to 7 are plan views showing parts of one type of conventional cosmetic container, and FIGS. 8 to 10 are views showing parts of other types of conventional cosmetic containers. 10...Base cylinder, 12...First spiral groove, 20...
Front tube, 30...Inner rear tube, 32...Protrusion, 34...
...Second spiral groove, 40...Working element support, 44...
...Neck, 46...Protrusion.

Claims (1)

[Claims for Utility Model Registration] A base cylinder 10 having a first spiral groove 12 on its inner surface, and an opening 2 at the tip for inserting and removing a working element.
8 and one half of the rotation stopper mechanism, the front tube 20 is rotatably attached to the base tube, and the outer surface is provided with a protrusion 32 that engages with a groove in the base tube. an inner rear cylinder 30 disposed within the base cylinder, which is provided with a second spiral groove 34 on its inner surface; and the other half of the rotation stop mechanism that cooperates with one half of the rotation stop mechanism of the front cylinder. a working element support 40 disposed within the front cylinder, and a protrusion 46 integrally connected to the rear part of the working element support and engaging with the second helical groove 34 of the inner rear cylinder 30;
A neck portion 44 disposed within the rear cylinder, which has a neck portion 44 on its outer surface.
An opening 17 is provided at the rear end of the base cylinder, and the working element support 40 is inserted through the opening 17 into the front cylinder 20.
Further, a slit 47 is provided at the rear end portion of the neck portion 44 having a protrusion 46 so that the diameter can be reduced in the radial direction.
A cosmetic container characterized in that a protrusion 36 for preventing the neck from falling off is provided at the tip of the cosmetic container.