JPH0513306Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cartridge-type cosmetic container, and more specifically to a mechanism for connecting a cartridge to an operating main body in a cartridge-type eyebrow polish or the like.

[Prior Art] For example, in the above-mentioned type of cosmetic container, such as a cartridge type eyebrow pencil, a core material (hereinafter referred to as a working element) of a different color is built into each cartridge, and the cartridge is attached to the operating body. By selectively changing the color, it is possible to use eyebrow ink of a desired color. The operating main body has a built-in driving body that is movable along the axial direction, and this is usually caused by the relative rotation of the double-structured cylinder on the operating main body side or by the relative rotation between the operating main body and the cartridge. The drive is operated by the relative rotation of the two.

In conventional cosmetic containers of this type, the structure for connecting and mooring the cartridge to the operating body is roughly divided into the following two types. A metal tube with a leaf spring part formed along the inside is disposed, and the cartridge is held between the leaf spring parts. Second
The structure is such that an inwardly protruding part is provided inside the tip of the cylinder of the operation main body, and a recess (undercut) is provided at the rear end of the cylinder of the cartridge. It is designed to moor a cartridge.

[Problem to be solved by the invention] However, in the case of the conventional cosmetic container having the above structure, the structure of the operating body is relatively complicated and expensive due to the presence of the leaf spring part. However, the latter structure has the disadvantage that the cartridge does not feel smooth when being attached and detached, and on the other hand, the inward protrusion and recess are likely to wear out after long-term use, making it easy for the cartridge to come off. .

The present invention has been made based on this viewpoint, and provides a cosmetic container of this type that overcomes the drawbacks of the above-mentioned conventional techniques, has a simple structure, and allows smooth and reliable attachment and detachment of the cartridge. The purpose is to

[Means for Solving the Problems] In order to achieve the above object, in the present invention, the operation main body is formed of an outer cylinder and an inner cylinder, and a cylinder having a C-shaped radial cross section is attached to the tip of the inner cylinder. Attached the body. The cylindrical body is separately molded from flexible synthetic resin or metal, and has an inwardly extending portion formed on its inner surface. On the other hand, a recess is formed somewhat inward from the rear end of the main cylinder of the cartridge, and its axial and radial dimensions are adapted to match the inwardly projecting portion of the cylindrical body. The inwardly projecting portion and the recess are engaged with each other when the cartridge is attached to the operating main body, and the cartridge is moored to the operating main body.

[Function] With the cosmetic container according to the present invention having the above configuration, when the cartridge is pushed into the operation main body, the concave portion of the cartridge cylinder is aligned with the C.
Until reaching the inwardly extending portion of the cylindrical body, the notch of the cylindrical body is widened by the rear end of the cartridge tube, and the diameter of the cylindrical body is expanded. Next, when the recess reaches and aligns with the inward bulge, the cylindrical body returns to its original diameter.
The recess and the inner bulge engage, and the cartridge is anchored to the operating body. Further, when the cartridge is removed, the engagement between the recess and the inwardly extending portion is released by the tensile force applied at this time in the reverse order to the above.

[Embodiment] FIGS. 1 and 2 are longitudinal sectional views showing an operating main body 10 and a cartridge 60 of an embodiment of a cartridge-type cosmetic container according to the present invention. Each component of the present cosmetic container is made of a molded synthetic resin material selected with appropriate individual characteristics in mind.

The main body 10 for operation consists of an outer cylinder 12 and an inner cylinder 22, and a driving body 42 is built into the inner cylinder 22.

The outer cylinder 12 has a front end opening 14 for mounting a cartridge 60 therein, and a rear end opening 16 for introducing each built-in component to be described later. The rear end opening 16 is closed by a cap 36 after the parts are introduced and assembled. The cap 36 is anchored to the outer cylinder 12 by a protrusion 38 provided on the body engaging with the recess 17 of the outer cylinder 12.

A plurality of axial protrusions 24 are formed on the outer periphery of the inner cylinder 22, and the protrusions 24 engage with a plurality of axial grooves 18 formed on the inner surface of the outer cylinder 12. The groove 18 and the protrusion 24 form a spline structure, and therefore the outer cylinder 12
and the inner cylinder 22 are locked relative to each other in the rotational direction.

The rod-shaped driving body 42 has a male thread 46 at a base 44, and the male thread 46 engages with a female thread 26 formed over substantially the entire length of the inner surface of the inner cylinder 22. Therefore, the driving body 42 is driven by the inner cylinder 2 by screwing together the screws 26 and 46.
2 can be operated in the axial direction. Further, a spring 34 is disposed around the driving body 42 between the tip inner wall 28 of the inner cylinder 22 and the base 44 of the driving body 42, and the action of this spring 34 causes the driving body 42 to move as shown in FIG. biased towards the position.

A cylindrical body 52 having a C-shaped cross section is attached to the tip of the inner cylinder 22, as shown in detail in FIGS. 4 to 6. The notch 54 of the cylindrical body 52 consists of a narrow part on the front end side and a wide part on the rear end side, and this shape is suitable for attachment to the inner cylinder 22, as will be described later.
This is to enable efficient reception of the rear end portion 108 of the cartridge main cylinder 62. An annular inwardly projecting edge 56 at the rear end and an annular inwardly projecting portion 58 at the distal end are formed on the inner surface of the cylindrical body 52 . The overhanging edge 56 engages the flange 32 at the distal end of the inner cylinder 22 and anchors the cylindrical body 52 to the inner cylinder 22.

The main cylinder 62 of the cartridge has a front end opening 64 for inserting and removing a working element, and a rear end opening 66 for introducing each built-in component to be described later. Also the main cylinder 6
2 includes a tapered portion 72 whose outer diameter becomes narrower toward the tip side with a central stepped portion 76 as a boundary, and an operating main body 10.
It consists of a straight tube-shaped insertion section 74 that is inserted into the tube.

A working element support body 82 is built into the main cylinder 62 . A working element (not shown) such as eyebrow ink is mounted on a support 82.
The plate 84 is attached to the tip of the plate 84. Blades 88 are attached to both outer sides of the plate 84, and the blades 88 are formed in an axial groove 68 formed over approximately the entire length of the inner surface of the main cylinder 62.
engage with. The groove 68 and the vane 88 form a spline structure, so that the main cylinder 62 and the support body 82 are locked relative to each other in the rotational direction.

Further, a spring 94 is disposed around the work element support 82 , and a tip 96 of the spring 94 engages with an overhanging portion 92 of the support 82 , and an enlarged diameter portion 98 at the rear end of the spring 94 engages with a step on the inner surface of the main cylinder 62 . 79.
Therefore, due to the action of this spring 94, the support body 8
2 is urged toward the original position shown in FIG.

A cylindrical tail plug 102 is attached to the rear end opening 66 of the main cylinder 62, which is attached after parts are introduced and assembled. The tail plug 102 is anchored to the main barrel 62 by the protrusions 106 attached to the outer sides of the two legs 104 having a flexible bifurcated structure engaging the corresponding openings 78 of the main barrel 62 . Further, the rear end portion 108 of the tail plug 102 is formed into a bulging shape, so that there is an (undercut-shaped) recess 1 between the rear edge of the main cylinder 62 and the rear end portion 108 of the tail plug 102.
12 is formed. The recess 112 is adapted in its axial and radial dimensions to the inner bulge 58 of the C-shaped cylinder 52. Further, a plurality of axial grooves 114 are formed on the inner periphery of the axially central passage of the tail plug 102, and the grooves 114 engage with a plurality of axial protrusions 48 formed at the tip of the drive body 42. The protrusion 48 and the groove 114 form a spline structure, so that the driver 42 and the tail plug 102, ie, the cartridge main cylinder 62, are locked relative to each other in the rotational direction.

In the cosmetic container configured as described above, the cartridge is attached to and detached from the operating main body in the following manner.

First, when installing the cartridge, the insertion portion 74 of the cartridge main cylinder 62 is introduced into the operation main body outer cylinder 12 from the tip opening 14. At the final stage of introduction, the user will experience some resistance as the rear end 108 of the tail plug 102 abuts against the cylindrical body 52. When the cartridge 60 is forcibly pushed in here, the rear end portion 108 expands the notch 54 of the cylindrical body 52 and expands the diameter of the cylindrical body 52.
08 can pass through the inside of the cylindrical body 52. When the cartridge recess 112 then reaches and aligns with the inward bulge 58 of the cylinder 52, the cylinder 52 returns to its original diameter and the recess 112 and the inward bulge 58 engage, thus A cartridge 60 is anchored to the operating main body 10 (see FIG. 3). Also, at this time, the tip end 15 of the outer cylinder 12 and the stepped part 76 of the cartridge main cylinder 62 just abut each other.

When the cartridge 60 and the operating main body 10 are rotated relative to each other in a state where the cartridge 60 is attached to the operating main body 10, the driver 42 rotates integrally with the cartridge 60 and moves inside the operating main body 10. Move in the axial direction. When the driver 42 moves to the right in FIG.
When moving to the left in the figure, the working element is placed under the action of the spring 94 and withdrawn from the cartridge tip opening 64.

Further, when removing the cartridge 60, as with conventional cosmetic containers of this type, by pulling the operating main body 10 and the cartridge 60 in the opposite direction along the axial direction, the recess 112 can be removed by reversing the procedure described above. The engagement with the inwardly extending portion 58 is released, and the cartridge 60 can be removed.

In the illustrated embodiment, the cartridge 60
Although the concave portion 112 is shown as being formed using the separately molded tail plug 102, the concave portion 112 may be integrally formed with the cartridge main barrel 62. However, it is desirable to form the recess (undercut) 112 by using the separately molded tail plug 102 in this way because the cartridge can be molded to be slender.

[Effects of the invention] According to the cosmetic container according to the invention, by making it easier to expand the diameter of the cylindrical body through the notch of the C-shaped cylindrical body, the recess of the cartridge and the inside of the cylindrical body are removed when the cartridge is attached or removed. The engagement and disengagement operations with the side overhang become smooth. Therefore, the cartridge feels smooth when being attached and detached, and the wear of the recessed portion and the inwardly protruding portion due to long-term use is reduced, resulting in a longer service life.

[Brief explanation of the drawing]

1 and 2 are vertical cross-sectional views showing the operating main body and cartridge of an embodiment of the cartridge-type cosmetic container according to the present invention, and FIG. 3 is a connecting portion when the operating main body and the cartridge are connected. FIGS. 4 to 6 are a side view, a plan view, and a cross-sectional view showing details of a C-shaped cylindrical body attached to the operation main body. 10... Main body for operation, 12... Outer cylinder, 22...
Inner cylinder, 34... Spring, 42... Drive body, 5
2...Cylindrical body, 58...Inward projecting portion, 60...
Cartridge, 62... main cylinder, 82... working element support, 94... spring, 102... tail plug,
108... Rear end portion, 112... Recessed portion.

Claims (1)

[Claims for Utility Model Registration] An operating main body 10 incorporating a driving body 42 movable along the axial direction, and a cartridge 60 incorporating a supporting body 82 for supporting a working element and attachable to the operating main body. and a cartridge-type cosmetic container, wherein the working element is operated for feeding and retracting by cooperation between the distal end of the driving body and the rear end of the support, and the operating main body is an outer cylinder. 12 and an inner cylinder 22, a cylindrical body 52 having a C-shaped radial cross section and separately molded from a flexible material is attached to the tip of the inner cylinder, and the cylindrical body has an inwardly extending portion on the inner surface. 5
8 and a main cylinder 62 of the cartridge.
A recess 112 is formed somewhat inwardly from the rear end 108, and the axial and radial dimensions of the recess are compatible with the inwardly extending portion of the cylindrical body, and when the cartridge is mounted on the operating body. The cartridge-type cosmetic container is characterized in that the inwardly projecting portion and the recess are engaged with each other, and the cartridge is moored to the operation main body.