JP2004097766A - Stick-shaped cosmetic container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick-shaped cosmetic container which is not broken in assembly. <P>SOLUTION: The stick-shaped cosmetic container is provided with a holding cylinder for holding a stick-shaped cosmetic, an inner cylinder wherein the holding cylinder is housed to freely feed out, and a turning outer cylinder which is externally fitted over the inner cylinder to freely relatively turn, a notched portion extending from a lower end face is formed on a peripheral wall portion of the holding cylinder, and a guide projection is projected on an outer peripheral surface of a lower part in the peripheral wall portion of the holding cylinder. Then, a spiral groove is engraved on an outer peripheral surface of the guide projection, a longitudinal hole which is protruded outside while engaging the guide projection in the manner of insertion to extend from the lower end face is formed in a peripheral wall portion of the inner cylinder, and a projecting part is provided higher than the longitudinal hole on the peripheral wall portion of the inner cylinder. On an inner peripheral surface of the outer cylinder, a spiral groove is engraved to be screwed with the spiral groove on the guide projection and an annular recessed part to which the projecting part of the inner cylinder is engaged is formed higher than the spiral groove, such that the projecting part of the inner cylinder is engaged into the annular recessed part to freely turn. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stick-shaped cosmetic container in which stick-shaped cosmetics such as lipstick, lip balm, and teak are drawn out from the container.
[0002]
[Prior art]
Recently, as a feeding container for stick-shaped cosmetics such as lipstick, a simplified assembly process has been proposed in Japanese Patent Laid-Open No. 8-275822. As shown in FIG. 5, the stick-shaped cosmetic material delivery container includes a holding cylinder 31 that holds the lower end portion of the stick-shaped cosmetic material 30, a guide cylinder 32 that internally slidably holds the holding cylinder 31, and the guide cylinder. A sleeve 33 (see FIG. 6) in which a small and fine knurled spiral groove 33a is engraved on the inner peripheral surface of the guide tube 32, and an outer tube 34 for fixing the lower portion of the guide tube 32. A cap 35 that is attached to the cylinder 34, and when projecting on the outer peripheral surface of the holding cylinder 31, the coupling portion 31a is inserted into a guide groove 32a formed in the guide cylinder 32 and protrudes laterally. Thus, the knurled spiral groove 33a of the sleeve 33 is engaged. In FIG. 5, reference numeral 32 b denotes a plurality of concave portions formed on the lower outer peripheral surface of the guide cylinder 32, and engages with a plurality of convex portions 33 b formed on the lower inner peripheral surface of the sleeve 33. When this is used, the sleeve 33 and the outer cylinder 34 are rotated relative to each other, whereby the guide cylinder 32 and the sleeve 33 fixed to the outer cylinder 34 are rotated relative to each other. Then, the holding cylinder 31 is moved up and down. Thereby, the bar-shaped cosmetic 30 can be fed out or lowered from the upper end opening of the guide tube 32. In this case, at the time of assembling, the sleeve 33 is fitted on the guide cylinder 32 in which the holding cylinder 31 is housed without aligning the joint portion 31a of the holding cylinder 31 and the knurled spiral groove 33a of the sleeve 33. The fitting portion 31a and the knurled spiral groove 33a can be joined together, and assembly is easy.
[0003]
[Problems to be solved by the invention]
However, this includes a holding cylinder 31, a guide cylinder 32, a sleeve 33, an outer cylinder 34, and a cap 35, and the assembled portion 31a of the holding cylinder 31 is engaged with the guide groove 32a of the guide cylinder 32 during assembly. When joining, the holding cylinder 31 must be forcibly bent, and the holding cylinder 31 and the guide cylinder 32 are easily damaged. Further, when the convex portion 33b of the sleeve 33 is engaged with the concave portion 32b of the guide tube 32, the sleeve 33 must be forcibly bent, and the guide tube 32 and the sleeve 33 are easily damaged.
[0004]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a stick-shaped cosmetic container that has a small number of parts and is not damaged during assembly.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a stick-shaped cosmetic container according to the present invention comprises a holding cylinder for holding a stick-shaped cosmetic, an inner cylinder in which the holding cylinder is retractably accommodated, and a rotatable relative to the inner cylinder. An outer cylinder for turning operation that is externally fitted, and a guide protrusion is provided on the lower outer peripheral surface of the peripheral wall portion of the holding cylinder, and a spiral groove is provided on the outer peripheral surface of the guide protrusion, and the inner cylinder is provided. In the peripheral wall portion of the inner cylinder, the guide protrusion engages in a penetrating manner so as to extend from the lower end surface thereof to form a vertical hole protruding outside, and a convex portion is provided above the vertical hole of the peripheral wall portion of the inner cylinder, On the inner peripheral surface of the outer cylinder, a spiral groove that encircles the spiral groove of the guide protrusion is formed, and an annular recess is formed on the upper part of the spiral groove to engage the convex portion of the inner cylinder. A configuration is adopted in which the convex portion of the inner cylinder is rotatably engaged with the annular concave portion.
[0006]
That is, the bar-shaped cosmetic container of the present invention includes a holding cylinder for holding a bar-shaped cosmetic, an inner cylinder in which the holding cylinder is housed so that the holding cylinder can be extended, and a rotation in which the inner cylinder is mounted so as to be relatively rotatable. And an outer cylinder for operation. On the lower outer peripheral surface of the peripheral wall portion of the holding cylinder, a guide protrusion having a spiral groove formed on the outer peripheral surface is provided. In addition, a vertical hole is formed in the peripheral wall portion of the inner cylinder so as to extend from the lower end surface of the inner cylinder so that the guide protrusion is inserted and protrudes to the outside. Projections are provided on the top. Also, an annular recess is formed on the inner peripheral surface of the outer cylinder by engraving a spiral groove that meshes with the spiral groove of the guide protrusion, and is rotatably engaged with the convex portion of the inner cylinder above the spiral groove. Is forming. In this case, when the outer cylinder is rotated relative to the inner cylinder, the holding cylinder is rotated with the relatively rotating inner cylinder, and this rotation causes the guide projection of the holding cylinder to move into the spiral groove of the outer cylinder. The holding cylinder moves up and down along the spiral groove while moving up and down (drawn up and down). At the time of this up and down, since the notch extending from the lower end surface is formed in the peripheral wall portion of the holding cylinder, the helical groove of the guide protrusion and the helical groove of the outer cylinder are elastically pressed, There is no rattling between the outer peripheral surface of the guide projection and the inner peripheral surface of the outer cylinder, and the guide projection rotates smoothly. Thus, since the stick-shaped cosmetic container of the present invention is composed of the holding cylinder, the inner cylinder, and the outer cylinder, the diameter is reduced and slimming is possible. And since the vertical hole drilled in the surrounding wall part of an inner cylinder is utilized and this is extended from the lower end surface, the surrounding wall part of an inner cylinder becomes a guide groove easily. Therefore, at the time of assembly, when inserting the inner cylinder into the outer cylinder, the inner cylinder is easily bent, and when inserting the holding cylinder into the inner cylinder, the inner cylinder is likely to expand, and the holding cylinder, the inner cylinder, and the outer cylinder. Will not break for a long time.
[0007]
Further, in the present invention, when the convex portion of the inner cylinder protrudes from an elastic piece provided on the outer peripheral surface of the inner cylinder, and the convex outer peripheral surface is brought into sliding contact with the inner peripheral surface of the annular concave portion of the outer cylinder. The ratchet does not occur between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder, and further smoothly rotates. In this case, since it is composed of four members, that is, a cap, a holding cylinder, an inner cylinder, and an outer cylinder, the number of parts is reduced, the cost is reduced, and management such as inventory management is simplified.
[0008]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0009]
[Example 1]
FIG. 1 shows an embodiment of the stick-shaped cosmetic container of the present invention. The stick-shaped cosmetic container includes a holding cylinder 1 made of ABS resin (acrylonitrile butadiene styrene copolymer) for holding the stick-shaped cosmetic 5 and an inner cylinder 2 made of ABS resin in which the holding cylinder 1 is housed so as to be freely drawn out. And an ABS resin bottomed cylindrical outer cylinder 3 on which the inner cylinder is mounted so as to be relatively rotatable, a center collar 6 fitted in the upper opening of the outer cylinder, and the middle collar 6 And a cap 4 made of ABS resin.
[0010]
More specifically, the holding cylinder 1 is formed in a cylindrical shape, and as shown in FIG. 2, a partition plate 12 that supports the bar-shaped cosmetic 5 is provided in the holding cylinder. A pair of notch grooves 13 are formed vertically from the lower end surface of the holding cylinder peripheral wall portion at positions facing each other on the lower portion of the peripheral wall portion of the holding cylinder from the partition plate 12. A portion sandwiched between both notched grooves 13 is formed in the elastic piece 14. Each of the elastic pieces 14 has a pair of guide projections 11 made of a thin curved plate body having a vertically long shape (four corners of a rectangle cut into a quarter arc) on the lower outer peripheral surface of the central portion thereof. A plurality of spiral grooves 10 are engraved on the surfaces of both guide protrusions 11 so as to mesh with spiral grooves 17 of the outer cylinder 3 described later. Both the guide protrusions 11 are elastically engaged with the spiral groove 17 of the outer cylinder 3 by the action of the elastic pieces 14.
[0011]
The inner cylinder 2 is formed in a cylindrical shape, and extends perpendicularly from the lower end surface of the peripheral wall portion of the inner cylinder 2 so that the guide projection 11 is engaged in an insertion shape. A pair of vertical holes 15 projecting to the outside are formed, and a portion sandwiched between the pair of vertical holes 15 is formed in the elastic piece 21. In both the vertical holes 15, the guide protrusions 11 are formed. It is engaged in an insertion shape and protrudes to the outside of both vertical holes 15. Further, an annular convex portion 16 is projected on the outer peripheral surface of the vertical hole in the peripheral wall portion of the inner cylinder, so that the annular concave portion 24 formed between the outer cylinder 3 and the intermediate collar is rotatable and cannot be pulled out. Is engaged.
[0012]
The outer cylinder 3 is formed in a bottomed cylindrical shape, and an annular recess 24 is formed between an annular step provided on the inner peripheral surface of the outer cylinder and the intermediate collar 6, and the annular recess 24 An annular convex portion 16 formed on the outer peripheral surface of the tube 2 is engaged so as to be rotatable and undrawn. Further, as shown in FIG. 1, the outer cylinder 3 is provided with a large number of spiral grooves 17 which are engaged with the spiral grooves 10 of the both guide protrusions 11 on the inner peripheral surface thereof. The spiral groove 17 is provided with 30 right-hand threads between 31.75 mm.
[0013]
As shown in FIG. 2, the cap 4 is formed in a cylindrical cylindrical shape, and is detachably engaged with the projecting portion 19 of the middle collar 6 at a portion of the inner peripheral surface corresponding to the middle collar. A recess 20 is formed.
[0014]
Such a rod-shaped cosmetic container can be assembled as follows. That is, first, the inner cylinder 2 is pushed into the inner cylinder 2 with the upper end opening of the holding cylinder 1 facing the lower end opening of the inner cylinder 2. As a result, both guide projections 11 of the holding cylinder 1 engage with the vertical holes 15 of the inner cylinder 2. Next, the inner cylinder 2 is incorporated into the outer cylinder 3. At that time, the elastic piece 21 of the inner cylinder and the elastic piece 14 of the holding cylinder enter the outer cylinder while bending inward, and the spiral grooves 10 and the outer cylinder 3 of the guide protrusions 11 projecting outward from both the vertical holes 15. The spiral grooves 17 are joined. Next, the intermediate collar 6 is fitted into the outer cylinder 3. After that, the cap 4 is put on the upper side of the intermediate collar 6.
[0015]
In the stick-shaped cosmetic container assembled in this way, the outer cylinder 3 is rotatable relative to the inner cylinder 2, and the two are rotated together with the inner cylinder 2 when the two and 3 are rotated relative to each other. The holding cylinder 1 moves up and down in the vertical hole 15. Thereby, the holding cylinder 1 moves up and down in the inner cylinder 2. At this time, both guide projections 11 of the holding cylinder 1 are elastically engaged with the spiral groove 17 of the outer cylinder 3 and the annular protrusion 16 of the inner cylinder 2 is formed on the inner peripheral surface of the outer cylinder. 24 between the guide projections 11 of the holding cylinder 1 and the inner peripheral surface of the outer cylinder 3, and between the annular convex portion 16 of the inner cylinder 2 and the inner peripheral surface of the outer cylinder 3. There is no rattling and the relative rotation is smooth. When not in use, the holding cylinder 1 is lowered, and the cap 4 is put on the upper side of the intermediate collar 6 in this state. In use, the cap 4 is removed and the outer cylinder 3 is rotated relative to the inner cylinder 2. As a result, the holding cylinder 1 moves up with the outer cylinder 3, and the bar-shaped cosmetic 5 protrudes from the upper end opening of the inner cylinder 2 and is ready for use.
[0016]
Thus, in the above-described embodiment, the stick-shaped cosmetic container is composed of the holding cylinder 1, the inner cylinder 2, the outer cylinder 3, the intermediate collar 6, and the cap 4, so the outer diameter is reduced, and the stick-shaped cosmetic container is Slim down. Moreover, since the guide protrusion 11 is formed on the elastic piece 14 formed on the peripheral wall portion of the holding cylinder 1 and the annular convex portion 16 is formed on the elastic piece 21 formed on the peripheral wall portion of the inner cylinder 2, during assembly, Even if the holding cylinder 1 is pushed into the inner cylinder 2 and the inner cylinder 2 is pushed into the outer cylinder 3, the elastic piece 21 expands or bends, so that the holding cylinder 1, the inner cylinder 2, and the outer cylinder 3 are damaged. And there is no rattling when turning.
[0017]
[Example 2]
FIG. 3 shows an embodiment of the stick-shaped cosmetic container of the present invention. This rod-shaped cosmetic container includes an ABS resin (acrylonitrile butadiene styrene copolymer) holding cylinder 1 in which the rod-shaped cosmetic 5 is held, and an ABS resin inner cylinder 2 in which the holding cylinder 1 is housed in a freely retractable manner. And an aluminum bottomed cylindrical outer cylinder 3 on which the inner cylinder is mounted so as to be relatively rotatable, and an aluminum cap 4 that is attached to the outer cylinder.
[0018]
More specifically, the holding cylinder 1 is formed in a cylindrical shape, and as shown in FIG. 4, a partition plate 12 for supporting the bar-shaped cosmetic 5 is provided in the holding cylinder. A pair of notch grooves 13 are formed vertically from the lower end surface of the holding cylinder peripheral wall portion at positions facing each other on the lower portion of the peripheral wall portion of the holding cylinder from the partition plate 12. A portion sandwiched between both notched grooves 13 is formed in the elastic piece 14. Each of the elastic pieces 14 has a pair of guide projections 11 made of a thin curved plate body having a vertically long shape (four corners of a rectangle cut into a quarter arc) on the lower outer peripheral surface of the central portion thereof. A plurality of spiral grooves 10 are engraved on the surfaces of both guide protrusions 11 so as to mesh with spiral grooves 17 of the outer cylinder 3 described later. Both the guide protrusions 11 are elastically engaged with the spiral groove 17 of the outer cylinder 3 by the action of the elastic pieces 14.
[0019]
The inner cylinder 2 is formed in a cylindrical shape, and extends perpendicularly from the lower end surface of the peripheral wall portion of the inner cylinder 2 so that the guide projection 11 is engaged in an insertion shape. A pair of vertical holes 15 projecting to the outside are formed, and a portion sandwiched between the pair of vertical holes 15 is formed in the elastic piece 21. In both the vertical holes 15, the guide protrusions 11 are formed. It is engaged in an insertion shape and protrudes to the outside of both vertical holes 15. Further, at two locations where the outer peripheral surface of the vertical hole upper portion of the peripheral wall portion of the inner cylinder lies relative to each other, a protruding portion 16 is projected from an elastic protruding piece 23 surrounded by a bowl-shaped notch groove 22, It is engaged with an annular recess 24 provided in the cylinder 3 so that it can rotate and cannot be pulled out.
[0020]
The outer cylinder 3 is formed in a bottomed cylindrical shape, and two convex portions 16 formed on the outer peripheral surface of the inner cylinder 2 are rotatable by an annular concave portion 24 provided on the upper inner peripheral surface thereof. Is engaged. Further, as shown in FIG. 3, the outer cylinder 3 is provided with a large number of spiral grooves 17 that are engaged with the spiral grooves 10 of the guide protrusions 11 on the inner peripheral surface thereof. The spiral groove 17 is provided with 30 right-hand threads between 31.75 mm.
[0021]
As shown in FIG. 4, the cap 4 is formed in a cylindrical shape, and is detachably engaged with the protrusion 19 of the outer cylinder 3 at a portion of the inner peripheral surface corresponding to the outer cylinder. A recess 20 is formed.
[0022]
Such a rod-shaped cosmetic container can be assembled as follows. That is, first, the inner cylinder 2 is pushed into the inner cylinder 2 with the upper end opening of the holding cylinder 1 facing the lower end opening of the inner cylinder 2. Thereby, both guide protrusions 11 of the holding cylinder are pushed into the inner cylinder 2 and engaged with the vertical holes 15 of the inner cylinder 2. Next, the inner cylinder 2 is incorporated into the outer cylinder 3. At that time, the elastic piece 21 of the inner cylinder and the elastic piece 14 of the holding cylinder enter the outer cylinder while bending inward, and the inner peripheral surface of the upper end opening of the outer cylinder 3 while the elastic protrusion 23 bends inward. The convex portion 16 projecting from the elastic projecting piece 23 is rotatably engaged with the annular concave portion 24 provided on the inner peripheral surface of the outer cylinder 3. At the same time, the spiral groove 10 of both guide projections 11 projecting outward from both vertical holes 15 and the spiral groove 17 of the outer cylinder 3 are joined together. After that, the cap 4 is attached to the upper side of the outer cylinder 3.
[0023]
In the stick-shaped cosmetic container assembled in this way, the outer cylinder 3 is rotatable relative to the inner cylinder 2, and the two are rotated together with the inner cylinder 2 when the two and 3 are rotated relative to each other. The holding cylinder 1 moves up and down in the vertical hole 15. Thereby, the holding cylinder 1 moves up and down in the inner cylinder 2. At this time, both guide protrusions 11 of the holding cylinder 1 are elastically engaged with the spiral groove 17 of the outer cylinder 3, and the protrusions 16 protruding from the elastic protrusions 23 of the inner cylinder 2 are formed on the outer cylinder 3. Since it is elastically slidably contacted with the annular recess 24 provided on the inner peripheral surface, it is between the both guide projections 11 of the holding cylinder 1 and the inner peripheral surface of the outer cylinder 3 and between the both convex parts 16 of the inner cylinder 2 and the outside. There is no backlash between the inner peripheral surfaces of the cylinder 3, and the relative rotation is smoothly performed. When not in use, the holding cylinder 1 is lowered, and the cap 4 is put on the upper side of the outer cylinder 3 in this state. In use, the cap 4 is removed and the outer cylinder 3 is rotated relative to the inner cylinder 2. As a result, the holding cylinder 1 moves up with the outer cylinder 3, and the bar-shaped cosmetic 5 protrudes from the upper end opening of the inner cylinder 2 and is ready for use.
[0024]
Thus, in the above embodiment, since the stick-shaped cosmetic container is composed of the holding cylinder 1, the inner cylinder 2, the outer cylinder 3, and the cap 4, the number of parts is small, and management aspects such as inventory management are simplified. The outer diameter is reduced and the stick-shaped cosmetic container is slimmed. In addition, when the holding cylinder 1 is inserted into the inner cylinder 2, the elastic piece 21 formed on the peripheral wall portion of the inner cylinder spreads, and the convex portion 16 is formed on the elastic piece 23 formed on the peripheral wall portion of the inner cylinder 2. At the time of assembly, even if the holding cylinder 1 is pushed into the inner cylinder 2 and the inner cylinder 2 is pushed into the outer cylinder 3, the elastic piece 21 expands or bends. Will not be damaged and will not rattle during rotation.
[0025]
【The invention's effect】
As described above, according to the stick-shaped cosmetic container of the present invention, since it is composed of the holding cylinder, the inner cylinder, and the outer cylinder, the number of parts is small, and the diameter is reduced to enable slimming. And since the vertical hole drilled in the surrounding wall part of an inner cylinder is utilized and this is extended from the lower end surface, the surrounding wall part of an inner cylinder becomes easy to bend. Therefore, when assembling, the inner cylinder is easily bent when the inner cylinder is inserted into the outer cylinder, and the inner cylinder is easily expanded when the holding cylinder is inserted into the inner cylinder. Will not break for a long time. Further, in the present invention, when the outer peripheral surface of the convex portion 16 of the inner cylinder is brought into sliding contact with the inner peripheral surface of the annular recess 24 of the outer cylinder 3, the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder are There is no rattling between the two and it rotates smoothly.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment.
2 is a cross-sectional view of Example 1. FIG.
FIG. 3 is an exploded perspective view of the second embodiment.
4 is a cross-sectional view of Example 2. FIG.
FIG. 5 is a cross-sectional view showing a conventional example.
FIG. 6 is a perspective view showing a conventional sleeve.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Holding cylinder 2 Inner cylinder 3 Outer cylinder 4 Cap 6 Middle flange 10 Guide protrusion spiral groove 11 Guide protrusion 13 Notch groove 15 Vertical hole 16 Convex part 17 Spiral groove 21 Elastic piece 22 Spear-shaped notch 23 Elastic protrusion 24 annular recess

Claims (2)

A holding cylinder for holding a bar-shaped cosmetic, an inner cylinder in which the holding cylinder is housed so as to be freely drawn out, and an outer cylinder for rotation operation that is fitted around the inner cylinder so as to be rotatable relative to the inner cylinder. A guide protrusion is provided on the lower outer peripheral surface of the peripheral wall portion, a spiral groove is formed on the outer peripheral surface of the guide protrusion, and the guide protrusion is extended from the lower end surface of the peripheral wall portion of the inner cylinder. A vertical hole that protrudes to the outside by engaging in an insertion shape is formed, a convex portion is provided on the peripheral wall portion of the inner cylinder, and a helical groove that engages with the spiral groove of the guide protrusion on the inner peripheral surface of the outer cylinder A rod-shaped cosmetic container in which a groove is formed, an annular recess is formed above the spiral groove to engage the protrusion of the inner cylinder, and the protrusion of the inner cylinder is rotatably engaged with the annular recess. 2. The convex portion of the inner cylinder is projected from an elastic piece provided on the outer peripheral surface of the inner cylinder, and the outer peripheral surface of the convex section is brought into sliding contact with the inner peripheral surface of the annular recess of the outer cylinder. Stick-shaped cosmetic container.

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