JPH0513308Y2 - - 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 case of 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 connected to the main body for operation. By selectively changing the color, it is possible to use eyebrow ink of a desired color. The operating body has a built-in driving body that is movable along the axial direction, and this normally controls the relative rotation of the double-structured cylindrical body of the operating body, or the relative rotation between the operating body and the cartridge. Drive operation is performed by relative rotation.

In conventional cosmetic containers of this type, the structure for connecting and mooring the cartridge to the operating main body is roughly divided into the following two types. The first structure is such that a metal tube with leaf spring parts formed along both inner sides is disposed on the tip side of the operating main body, 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 it is an object of the present invention to provide a cosmetic container of this type that eliminates the drawbacks of the above-mentioned prior art, has a simple structure, is smooth, and allows reliable attachment and detachment of a cartridge. The purpose is to

[Means for Solving the Problems] The present invention includes an operating main body that incorporates a drive body that is movable along the axial direction, a cartridge that includes a working element support and that can be attached to the operating main body. , 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, wherein a tail plug is provided at the rear end opening of the cartridge. installed,
The tail plug has protrusions attached to the outside of both legs of the flexible bifurcated structure, which engage corresponding openings in the cartridge, and have projections formed on the inner periphery of the axially central passage of the tail plug. A technology in which the groove engages with an axial protrusion formed on the top of the drive body, and the two form a spline structure, so that the drive body and tail plug are locked against relative rotation. We are taking appropriate measures.

[Function] With the above configuration, when the cartridge type cosmetic container according to the present invention is used, the tail plug functions reliably as one body with the cartridge main cylinder during the operation of extending and retracting the working element, and at the same time, the tail plug functions as one unit with the main body of the cartridge. moves only in the axial direction without rotation within the central passage of the tail plug.

[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 circumference 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 relatively locked in the rotational direction.

The rod-shaped driving body 42 has a male screw 46 at a base 44, and the male screw 46 engages with a female screw 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.
It is attached to the plate 84 at the tip of. 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 sprung cylindrical body 94 is disposed around the work element support 82 , and the tip 96 of the spring 94 engages with the overhanging part 92 of the support 82 , and the enlarged diameter part 98 at the rear end engages with the inner surface of the main cylinder 62 . It engages with the stepped portion 79 of.
Therefore, due to the action of this spring 94, the support body 8
2 is urged toward the original position shown in FIG.

The rear end opening 66 of the main cylinder 62 has a cylindrical tail plug 102 (No. 8A to C
) is installed. 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 . Also, the rear end part 10 of the tail plug
8 is formed into a bulging shape, and therefore, a recess 112 (undercut-like) is formed between the rear edge of the main cylinder 62 and the rear end portion 108 of the tail plug. The recess 112 has axial and radial dimensions that are equal to the C-shaped cylindrical body 5.
2 inwardly extending portion 58 . 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.

Note that FIG. 7 shows details of the cartridge and the inner cylinder being uncoupled and disassembled.

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 a 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 inner bulge 58 of the cylinder 52, the cylinder 52 returns to its original diameter and the recess 112 and the inner 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 kind, 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.

[Effects of the invention] According to the cosmetic container according to the invention, the tail plug has a flexible bifurcated structure and the protrusions attached to both legs engage with the corresponding openings of the cartridge main barrel, so that
The tail plug and cartridge will not come off from the main barrel.
Further, in the axially central passage of the tail plug, the driver cannot rotate and can only move in the axial direction. As a result of the above, the operation of extending and retracting the working element becomes reliable and smooth.

Furthermore, since the cartridge and the operating main body are moored through the recess formed by the tail plug and the cartridge, there is no need to form a recess in the cartridge itself, and there is an advantage that the cartridge can be formed into a slender shape.

[Brief explanation of drawings]

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. 4 to 6 are side views, plan views, and sectional views showing details of the C-shaped cylindrical body attached to the operation main body. FIG. 7 is an enlarged sectional view showing the inner cylinder and cartridge in FIG. 3. FIG. 8A, FIG. 8B, and FIG. 8C are an exploded perspective view, a front view, and a right side view of the tail plug taken along the line A-A. 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, 66... rear end opening, 82... working element support, 94... spring, 102... tail plug, 104... leg, 106...
Projection, 112... recess.

Claims (1)

[Claims for Utility Model Registration] An operating main body 10 incorporating a drive 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, in which the working element is fed out and retracted by cooperation between the tip end of the driving body and the rear end of the support, the cartridge 60 having a rear end opening 66; tail plug 102
is attached, and this tail plug has a protrusion 106 attached to the outside of both legs 104 of the flexible bifurcated structure, and engages with a corresponding opening 78 of the cartridge 60, and the axial direction of the tail plug 102 An axial groove 114 formed on the inner periphery of the central passage engages an axial ridge 48 formed on the leading end of the driver 42 , the two forming a spline structure to connect the driver 42 and tail plug 102 . A cartridge-type cosmetic container characterized in that the and are locked so that they cannot rotate relative to each other.