JPH0371121B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a short-shaft dispensing type container for storing bar-shaped cosmetics such as eyeliner, eyebrow, eye shadow, lipstick, etc.

Conventionally, containers of this type with short shafts have been known, but all of them have drawbacks such as complicated structures, poor assembly efficiency, high costs, and the tendency for cosmetics to break.

The present invention improves the above-mentioned drawbacks of the conventional products, and makes the container as short as possible to make it convenient to carry and use, while reliably preventing breakage of fragile cosmetics. The purpose is to provide an inexpensive cosmetic container that is extremely easy to manufacture and highly efficient.

Embodiments of the configuration of the present invention shown in the drawings will be described in detail below.

1 to 3 show a conventional example, FIGS. 4 to 7 show a first embodiment of the present invention, and FIGS. 8 to 1 show a conventional example.
Figure 0 shows the second embodiment, and Figures 11 to 14 show the third embodiment.
Examples FIGS. 15 to 19 show the fourth embodiment, and FIGS. 20 and 21 show the fifth embodiment.

First, to explain a conventional example, reference numeral 1 is a core tube, in which the knob 2 at the front part is formed into a thick shaft, and the rear part thereof is formed into an insertion part 3 with a thin shaft.
The insertion portion 3 of the sliding hole 4 has two sliding grooves 5 penetrating through the outer circumferential surface at mutually opposing positions, and two sliding grooves 5 extending in the longitudinal direction. A locking protrusion 6 is formed at the rear end, which has a wedge-shaped cross section with a rearwardly tapered surface and is cut by one of the sliding grooves 5. Reference numeral 7 denotes an outer cylinder, which has a female thread 8 carved on its inner surface and an engaging stepped portion 9 for locking the locking protrusion 6 at its rear part. Reference numeral 10 is a core chuck, and a supporting cylinder part 1 fits and holds the cosmetic A.
1, and a protrusion 12 that penetrates the sliding groove 5 and is screwed into the female screw 8 is provided at the rear. 13
is a tail plug that fits into the rear end of the outer cylinder 7. The core tube 1, outer tube 7, core chuck 10, and tail plug 13 are all made of plastic and molded by injection molding.

Since each part is configured in this way, the core tube 1
After inserting the protrusion 12 of the core chuck 10 into the sliding groove 5, insert the insertion part 3 of the core cylinder 1 into the outer cylinder 7, screw the protrusion 12 of the core chuck 10 into the female screw 8, and insert The locking protrusion 6 at the rear end of the part 3 is locked to the engagement step part 9 of the outer cylinder 7 to be rotatably attached, and finally the tail plug 13 is fitted to the rear end of the outer cylinder 7 to assemble. When the outer tube 7 is rotated with respect to the knob 2 of the core tube 1, the protrusion 12 of the core chuck 10 moves forward by the sliding groove 5 and the female screw 8, and the cosmetic A attached to the core chuck 10 is moved forward. It can be made to protrude from the tip of the core tube 1. Moreover, if the outer tube 7 is rotated in the opposite direction, it will operate in the opposite manner to that described above, and the core chuck 10 will move back and the cosmetic A will be transferred to the core tube 1.
It can be stored immersed inside.

Because of this, in the conventional example, the four parts of the core tube, outer tube, core chuck, and tail plug are simply assembled using a force-fitting adhesive.
It is easy to manufacture and can be produced at low cost since screws and other means can be omitted, and since the core chuck is guided by overlapping sliding grooves and female screws, the entire core chuck can be formed into a short shaft, and it is possible to securely hold fragile cosmetics. can be protected. Therefore, the present invention is an improvement on the above-mentioned conventional example, and a first embodiment of the present invention shown in FIGS. 4 to 7 will be described.
2. It has an insertion part 23, a sliding hole 24, a sliding groove 25, and a locking protrusion 26, and the outer cylinder 27 has a female screw 2.
8. Having an engaging stepped portion 29, and further including an outer cylinder 27.
The fitting of the tail plug 34 to the rear end is similar to the conventional example, except that the core chuck 30 has a base 3.
Two claw pieces 32 are provided protruding from 1, and the cosmetic A is applied to these.
while elastically pinching the claw pieces 32 to the core tube 21.
It is slidably inserted into the sliding groove 25 of. Also, claw piece 3
2 is provided with a protrusion 33 projecting through the sliding groove 25 and screwed into the female screw 28.

With this configuration, the same effects as those of the conventional example are produced, and in addition, since the claw piece that clamps the cosmetic is inserted into the sliding groove, the gap between the cosmetic and the sliding hole is reduced. Since the gap can be formed narrower and the nail piece itself has elasticity, fragile cosmetics are further protected even when subjected to external forces such as vibrations and impacts, and breakage can be reliably prevented.

In the second embodiment shown in FIG. 8 to FIG.
4. The formation of the sliding grooves 45 is the same as in the first embodiment, but the sliding grooves 45 are both cut to the rear end, and the locking protrusions 46 are provided in two protrusions. The outer cylinder 47 has a cavity 48 instead of a female thread, into which a coil spring 49 is inserted, and a spline 50 is carved in the rear part, and a washer 51 having a knurl is inserted into this to insert the coil spring 49. The washer 51 is pressed into contact with the end to prevent rotation of the coil spring 49, and the washer 51 is pressed against the core cylinder 4.
1 into the insertion part 43 of the core cylinder 41 and locked with the locking protrusion 46, and then the presser protrusion 53 of the tail plug 52 fitted to the rear end of the outer cylinder 47 is inserted into the sliding hole of the insertion part 43 of the core cylinder 41. 4
The ring protrusion 54 of the tail plug 52 is fitted into the rear end of the outer cylinder 4 to prevent the washer 51 from being pulled out.
7 to prevent the tail plug 52 from being pulled out. The core chuck 56 is similar to the first embodiment.
It is composed of a base 57, a claw piece 58, and a protrusion 59.

Incidentally, even if the knurling and the spline 50 are not provided, it is possible to sufficiently press the coil spring 49 to prevent rotation.

This configuration has the advantage that it not only produces the same effects as the first embodiment, but also facilitates the molding of the core tube and the outer tube and the molding operation.

The third embodiment shown in FIGS. 11 to 14 corresponds to the case where the number of sliding grooves in the first embodiment is four, and the claw pieces of the core chuck that are slidably fitted into the sliding grooves are four. It is something. That is, the core tube 61 has a knob portion 62, an insertion portion 63, a sliding hole 64, and a sliding groove 6.
5. It has a locking protrusion 66, and the four sliding grooves 65 are formed in a cross-shaped cross section, and the locking protrusion 66 is formed in a ring shape. The outer cylinder 67 has a female thread 68 and an engaging stepped portion 69, and a tail plug 74 is fitted to the rear end thereof. The core chuck 70 has four claws 72 arranged in a cross shape on a base 71, and two protrusions 73 protruding from the base 71.

With this structure, the same effects as in the first embodiment are produced, and in addition, the cosmetic is sandwiched between the four claw pieces, and the claw pieces are slidably fitted into the four sliding grooves. Because of this, the core chuck can move in a stable state, and breakage of the cosmetic can be more reliably prevented.

In the fourth embodiment shown in FIGS. 15 to 19, the third embodiment is further improved, and the core tube 81 has a knob 82, an insertion section 83, and a sliding hole 84. Four sliding grooves 85 are formed with a cross-shaped cross section, one of which penetrates the outer surface of the insertion part 83, and a ring-shaped groove 86 is formed near the rear end of the insertion part 83. The outer cylinder 87 has a female thread 88 and a rear inner surface formed in a large diameter portion 89 . The core chuck 90 has four claws 92 protruding from the base 91 to sandwich the cosmetic A and slidably fitting into the sliding groove 85, and has one protrusion 93 protruding from the base 91. Then, it passes through the sliding groove 84 and is screwed into the female screw 88. The tail plug 94 is formed into a cylindrical shape with a bottom, and the cylindrical portion 9
5 has a cut 96 and an engaging protrusion 97 formed on the inner surface, and a flange 98 is protruded from the bottom surface, and this tail plug 94 is inserted into the rear end of the outer cylinder 87 and locked by the flange 98. At the same time, the engaging protrusion 97 in the cylindrical portion 95 is fitted into the groove 86 and locked.

This configuration has the advantage that it not only produces the same effects as the third embodiment, but also facilitates the molding of the core tube and the outer tube and the molding operation, making it possible to manufacture the tube at a low cost.

In the fifth embodiment shown in FIGS. 20 and 21, the fourth embodiment is further improved, and
The core tube 101 has a knob 102, an insertion portion 103, a sliding hole 104, and four sliding grooves 1 through which one passes.
05, a ring-shaped groove 106 is further formed near the front end of the insertion portion 103, and a cylindrical stopper 107 is fitted into the insertion portion 103.
An engaging protrusion 109 is provided protruding from the cut 108 and the inner surface,
This engaging protrusion 109 is fitted and locked into the groove 106, and the knurling 11 is further formed on the outer surface of the locking piece 107.
0 is engraved and this is formed into a cylindrical outer cylinder 1.
The insertion portion 103 is inserted into the outer cylinder 11 so as to be housed therein, and the outer cylinder 111 and the locking piece 107 are tightly fitted and fixed. The core chuck 112 has a base 113, four claw pieces 114, and one protrusion 115.
4 is slidably fitted into the sliding groove 105, and the protrusion 1
15 is screwed into a coil spring 116 inserted into the outer cylinder 111 through the sliding groove 105. The rear end of the coil spring 116 is bent and fixed by being fitted into a cut 118 formed at the tip of a tail plug 117 fitted to the rear end of the outer cylinder 111.

With this configuration, the same effects as in the fourth embodiment can be produced, and in addition, the outer cylinder can be simply cut out from the pipe, and the female thread can be simply cut out from the coil spring, thereby improving productivity and reducing costs. can be measured.

As described above in detail with respect to each of the embodiments, the present invention improves productivity by making molding, molding, and assembly operations more efficient, which have conventionally been a problem when manufacturing short-axis cosmetic containers. In addition, since the claw piece is inserted into the sliding groove, the gap between the cosmetic material and the sliding hole can be formed narrower, and the nail piece can be inserted into the sliding groove. Since the piece itself has elasticity, fragile cosmetics are further protected even when subjected to external forces such as vibrations and shocks, and breakage can be reliably prevented and a cosmetic container that is convenient to carry and easy to use can be obtained. It has various effects such as the ability to

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view of the conventional example, FIG. 2 is a longitudinal front view, FIG. 3 is a partially cutaway perspective view of the core tube and the core chuck, and FIG. 4 is a longitudinal side view of the first embodiment. 5 is a vertical front view, FIG. 6 is a cutaway perspective view of the core tube, FIG. 7 is a perspective view of the core chuck, and FIG. 8 is a partially vertical side view of the second embodiment.
FIG. 9 is a cutaway perspective view of the core tube, FIG. 10 is a perspective view of the relationship between the rear end of the core tube and the tail plug, FIG. 11 is a longitudinal side view of the third embodiment, and FIG. 12 is a longitudinal section. The front view and Figure 13 are also perspective views of the core tube, and Figure 1
Figure 4 is a perspective view of the core chuck, Figure 15 is a longitudinal sectional side view of the fourth embodiment, and Figure 16 is the same as the 15th embodiment.
A cross-sectional view taken along line A-A, and FIG. 17 is also B-
18 is a sectional view taken along line B, FIG. 18 is a sectional view taken along line C-C, FIG. 19 is an exploded perspective view showing the relationship between the core tube and tail plug, and FIG. 20 is a longitudinal sectional view of the fifth embodiment. The side view and FIG. 21 are similarly exploded perspective views showing the relationship between the core tube, stopper, coil spring, and tail plug. DESCRIPTION OF SYMBOLS 1... Core cylinder, 2... Knob part, 3... Insertion part, 4... Sliding hole, 5... Sliding groove, 6... Locking protrusion, 7... Outer cylinder, 8...
Female screw, 9... Engagement stepped portion, 10... Core chuck, 11
... core support cylinder part, 12 ... protrusion, 13 ... tail plug.

Claims (1)

[Claims] 1. Leaving the knob part of the core cylinder formed with the sliding groove, the core cylinder is inserted into the outer cylinder to be rotatable and fixed in the axial direction,
A core chuck with cosmetics sandwiched therein is inserted into the core cylinder using elastic claws that slide within the sliding groove, and a locking protrusion protruding from the core chuck is inserted through the sliding groove. A short-shaft cosmetic container that is screwed onto the threaded part inside the outer cylinder.