JP2918107B2 - Stick-shaped cosmetic dispensing container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for accommodating a stick-shaped cosmetic such as lipstick , and more particularly to a container for feeding a stick-shaped cosmetic with improved productivity and functionality .

[0002]

2. Description of the Related Art Conventionally, stick cosmetic containers such as lipsticks have been
A spiral dispensing mechanism for dispensing a stick-shaped cosmetic by performing a rotating operation was provided therein. The spiral feeding mechanism includes a holding cylinder that holds the rod-shaped cosmetic, a guide cylinder that prevents the rotation of the holding cylinder, a spiral cylinder that moves the holding cylinder up and down, and a sleeve, an outer cylinder, a middle cylinder, and a cap that are exterior bodies. And so on. Therefore, according to Japanese Utility Model Application Laid-Open No. 56-136608, a spiral groove is screwed into the inner wall of a sleeve as an exterior body, and the sleeve and the spiral cylinder are integrally formed to reduce the number of parts of the rod-shaped cosmetic container. Has been proposed.

[0003]

However, among these, the threaded projection protruding from the holding cylinder penetrates the guide groove that is long in the axial direction of the guide cylinder, and is screwed into the spiral groove.
Therefore, when assembling the holding cylinder to the stick-shaped cosmetic container,
It is necessary to align the positions of the holding cylinder, the guide cylinder, and the spiral cylinder, make the screwing projection of the holding cylinder protrude into the guide groove, and screw it into the spiral groove, which has been difficult to assemble. In recent years, in order to reduce the manufacturing cost, a method of automating the assembling work of the stick-shaped cosmetic container has been adopted. However, in order to automate the assembly, it is necessary to perform positioning for inserting the screwing projection into the guide groove and positioning for screwing the screwing projection into the spiral groove. It was a neck process.

[0004]

A holding cylinder 2 for fitting and holding a stick-shaped cosmetic 1 has a threaded projection 3 protruding from a side wall and is mounted inside a guide cylinder 4 so as to be vertically slidable. A guide groove 5 through which the screwing projection 3 penetrates is formed in the side wall of the guide cylinder 4 so as to be long in the axial direction, and an engagement groove 10 is provided below the guide groove 5. The guide cylinder 4 is rotatably inserted into the sleeve 11. The sleeve 11 is linked to non dropping the guide tube 4 to protrude the engaging rib 20 that engages the engaging grooves 10 in the lower part, the holding cylinder 2 all around the inner wall
Countless spiral grooves that are narrower than the threaded projections 3
Thus, a spiral knurl 13 is formed. Then, the helical row of the sleeve 11 of the screwing projection 3 of the holding cylinder 2
The front end face facing the let 13 is adjacent to the sleeve 11.
A screwing surface 15 having a plurality of projections and recesses to be screwed into the plurality of spiral knurls 13 that are engaged with each other is engraved. The present invention is a stick-shaped cosmetic dispensing container configured as described above.

[0005]

When the sleeve 11 and the guide cylinder 4 are relatively rotated, the elastic projection 9 of the guide cylinder 4 is connected to the connecting portion 1 of the sleeve 11.
4, sliding frictional resistance is generated, and a good rotating operation feeling is obtained. At this time, since the holding projection 2 is screwed into the spiral knurl 13 while the rotation of the holding cylinder 2 is prevented by the guide groove 5 of the guide cylinder 4, the holding cylinder 2 moves up and down by the screwing action.

Further, when assembling the stick-shaped cosmetic dispensing container of the present invention, a guide cylinder 4 having a holding cylinder 2 therein is inserted into a sleeve 11 and a spiral having a myriad of irregularities screwed on the inner wall of the sleeve 11. of Jo knurling 13, next
Holding cylinder 2 in any of a plurality of spiral knurls 13
The screwing surface 15 of the screwing projection 3 can be screwed.
Thereafter, an engagement rib 20 that engages with the engagement groove 10 of the guide cylinder 4 is provided at a lower portion of the sleeve 11 to protrude therefrom.
1 and the guide cylinder 4 are rotatably connected so as not to fall off.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A holding cylinder 2 for fitting and holding a stick-shaped cosmetic 1 such as lipstick has a threaded projection 3 projecting from a side wall. This holding cylinder 2
Is mounted inside the guide cylinder 4 so as to be slidable up and down. On the side wall of the guide cylinder 4, a guide groove 5 through which the screwing projection 3 of the holding cylinder 2 penetrates is formed to be long in the axial direction. Further, below the lower end of the guide groove 5 of the guide cylinder 4 is a sliding contact portion 6 whose outer diameter is enlarged. Below this sliding contact part 6,
Further, the outer diameter is enlarged to form the fastening portion 7. Above the sliding contact part 6 is a holding part 8. An elastic projection 9 projects from the outer wall of the holding portion 8 of the sliding contact portion 6.
A concave groove 10 for engagement is provided below the elastic projection 9.

The holding portion 8 of the guide tube 4 is
1 and is rotatably inserted into the inside. The lower end of the sleeve 11 covers the sliding portion 6 of the guide cylinder 4. An inner wall of the sleeve 11 facing the holding portion 8 of the guide cylinder 4 is a threaded portion 12, and a knurl 13 having a myriad of irregularities is spirally threaded around the entire periphery of the threaded portion 12 .
Below the threaded portion 12 of the sleeve 11 is a connecting portion 14 having a reduced thickness. Note that the spiral knurl 1 of the sleeve 11 is provided on the distal end surface of the screwing projection 3 of the holding cylinder 2.
A plurality of irregularities corresponding to 3 are engraved to form a screwing surface 15 which is screwed to any one of a plurality of spiral knurls 13 adjacent to each other . An elastic projection 9 of the guide tube 4 is in sliding contact with the inner wall of the connecting portion 14 of the sleeve 11, and furthermore, an engagement rib 20 which engages with the engagement groove 10 of the guide tube 4 inward from outside. Is provided around. As a result, the sleeve 11
Is rotatably connected to the guide cylinder 4 so as not to fall off. When the sleeve 11 and the guide cylinder 4 are relatively rotated,
Since the elastic projection 9 of the guide tube 4 is in sliding contact with the connecting portion 14 of the sleeve 11, sliding frictional resistance is generated, and a good rotating operation feeling is obtained. At this time, the holding cylinder 2 is prevented from rotating by the guide groove 5 of the guide cylinder 4 and the engagement surface 15 of the engagement protrusion 3 is engaged.
Is screwed into the spiral knurl 13 and moves up and down by the screwing action.

The fastening part 7 at the lower end of the guide cylinder 4 is
It is anchored inside. At the upper end of the outer cylinder 16, a middle cylinder 1
7 is fixed. The upper end of the middle cylinder 17 is
It forms a fitting portion 19 which projects further upward and into which the cap 18 is removably fitted. The outer cylinder 16 and the middle cylinder 17
Can be integrally formed. In addition, holding cylinder 2,
The guide tube 4 and the sleeve 11 can also constitute a stick-shaped cosmetic delivery container.

[0010]

As described above, according to the present invention, the spiral knurl 13 having an infinite number of irregularities is screwed on the inner wall of the sleeve 11, and the screwing projection 3 of the holding cylinder 2 is screwed onto the spiral knurl 13.
Since the screwing surface 15 is screwed, the sleeve 11 and the spiral cylinder are integrally formed, and the number of parts can be reduced. In addition, the spiral groove on the inner wall of the sleeve 11 is
And a plurality of threads on the screwing surface 15 of the screwing projection 3.
Since the helical knurls 13 are screwed together,
The rattling of the threaded projection 3 can be minimized. Follow
When a shock or the like is applied to the stick-shaped cosmetic 1 in the container,
The cosmetic 1 shakes and hits the inner wall of the container, causing damage
Nothing happens at all. Similarly, the screwing projection 3 is adjacent
A plurality of spiral knurls 13 are screwed together.
The amount of hooking of the screwing projection 3 per spiral thread
It is possible to reduce it. Therefore, the sleeve 11 itself
Can be made thinner, and press forming
Reeve 11 can be formed of metal such as aluminum, giving a high-class feel
The manufacturing cost can be reduced without impairing the manufacturing cost. Also pickpocket
When the groove 11 is made of synthetic resin, the groove depth of the spiral groove
Is shallow, narrow, and provided all around
The difference in the amount of shrinkage due to the difference in wall thickness
It is difficult to come out. In addition, spiral grooves have countless irregularities.
Spiral knurl 13 around the entire inner wall of sleeve 11
, A plurality of spiral shapes adjacent to the tip end surface of the screwing projection 3
Since the screwing surface 15 screwed to the knurl 13 is carved,
At any position, any one of the spiral knurls 13
3 can be screwed together, so that there is no need for positioning when screwing the screwing projection 3 into the spiral knurl 13, the assembling operation can be performed, automation can be easily performed, and assembly costs can be reduced. Therefore, the stick-shaped cosmetic dispensing container of the present invention can reduce parts cost, manufacturing cost, and assembling cost, and can provide a highly productive rod-shaped cosmetic dispensing container.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a stick-shaped cosmetic dispensing container according to an embodiment of the present invention.

FIG. 2 is a perspective view of a holding cylinder according to the embodiment of the present invention.

FIG. 3 is a partial sectional perspective view of a sleeve according to the embodiment of the present invention.

FIG. 4 and

FIG. 5 is a sectional view of a knurled embodiment of the inner wall of the sleeve.

[Description of sign]

 REFERENCE SIGNS LIST 1 stick-shaped cosmetic 2 holding cylinder 3 screwing projection 4 guide cylinder 5 guide groove 10 engaging groove 11 sleeve 13 spiral knurl 15 screwing surface 20 engaging rib

Claims (1)

(57) [Claims] 1. A holding cylinder 2 in which a stick-shaped cosmetic 1 is fitted and held, and a threaded projection 3 is projected from a side wall, and the holding cylinder 2 is vertically slidably mounted inside, and the side wall is provided with the threaded projection. A guide tube 4 in which a guide groove 5 through which the portion 3 penetrates extends in the axial direction, and a guide groove 4 is provided below the guide groove 5, and the guide tube 4 is rotatably inserted. An engaging rib 20 for engaging with the engaging concave groove 10 is protrudingly provided at a lower portion so as to be undetachably connected, and the entire inner wall is
A helical recess having a width smaller than that of the threaded projection 3 of the holding cylinder 2
A sleeve 11 in which a spiral knurl 13 is formed by threading grooves innumerably, and a spiral of the sleeve 11 of the screwing projection 3 of the holding cylinder 2.
Adjacent to the tip end surface facing the knurl 13
Characterized in that a threaded surface 15 having a plurality of projections and depressions engaged with the spiral knurl 13 is engraved.