JP3366822B2 - Bar-shaped cosmetic material feeding container - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a container for delivering a stick-shaped cosmetic material such as lipstick and eyeliner. In particular, it relates to a stick-shaped cosmetic material feeding container having a novel feeding mechanism.

[0002]

2. Description of the Related Art In a stick-shaped cosmetic material feeding container, a spiral engagement type feeding mechanism is generally used. by the way,
A conventional feeding mechanism includes a push rod having a male screw and a synchronous engagement portion , a spiral cylinder having a screwing portion (female screw) to be screwed with the male screw, and a spiral rod rotatably connected to the spiral barrel. A synchronous engagement cylinder having a detent that engages with the synchronous engagement portion;
Is a minimum component, and the push rod is extended / retracted by relatively rotating the spiral cylinder and the synchronous engagement cylinder. In the present specification, the threaded portion includes a male screw, a spiral stripe, a protrusion and an outer surface groove that function similarly to the male screw, and a female screw, a spiral groove, a protrusion and an inner surface protrusion that function similarly to the female screw. Article shall be included.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stick-shaped cosmetic material feeding container having a new feeding mechanism having a completely different idea from the conventional feeding mechanism and having various characteristics.

[0004]

[Means for Solving the Problems] In the first invention, a rod-shaped member is formed.
A chuck that holds the cosmetic material and hang down from this chuck
The push rod, the sleeve that moves the chuck forward and backward, and this sleeve.
A base cylinder with a push rod that is rotatably connected to the sleeve.
A stick-shaped cosmetic material feeding container comprising:
Has a first threaded portion and a second threaded portion,
The leave has a third screwing portion that is screwed with the first screwing portion.
A fourth cylinder that has the base cylinder and is screwed with the second screwing portion.
A threaded portion, the first threaded portion and the third threaded portion
And the second spiral
Second screw engaging portion by the screw engaging portion of the second screw and the fourth screw engaging portion.
And the relative rotation between the sleeve sleeve and the sleeve sleeve.
By moving the chuck inside the front sleeve.
To move the rod-shaped cosmetic material forward and backward,
Pull out and pull in. In the second invention, the above
A vertical groove or vertical rib extending in the axial direction of the cylinder at one end of the threaded portion.
And a mating screw part that is screwed with the screw part.
, But also engages with the vertical groove or vertical rib.

First, the operation of this container feeding mechanism will be described. The specifications of the mechanism are as follows. The first helical engagement portion of the lead (unit angle per following the): L ₁ second helical engagement portion of the lead: the rotation angle theta ₁ L ₂ push _rod, the rotation angle theta ₂ of the front cylinder _sleeve, the original cylinder Rotation angle θ ₃ At this time, if the length of the push rod does not change and the distance between the front sleeve and the base sleeve does not change in the axial direction, the pushing-out dimension of the push rod in the front sleeve and the length in the base sleeve Since the push-out dimension of the push rod is the same, it is as follows. (Θ ₁ −θ ₂ ) × L ₁ = (θ ₁ −θ ₃ ) × L ₂ ...
(1) From this, θ ₁ is expressed as follows. θ ₁ = (L ₁ θ ₂ −L ₂ θ ₃ ) / (L ₁ −L ₂ ) ...
(2) Therefore, the feed-out dimension S of the push rod is as follows. S = (θ ₁ −θ ₂ ) × L ₁ = (θ ₂ −θ ₃ ) × L ₁ L ₂
/ (L ₁ −L ₂ ) ... (3) According to this equation, when L ₁ = L ₂ (same direction, same lead spiral engaging portion), S = ∞ and feeding is impossible.

Consider the following case in the equation (3). L ₁ = ∞, that is, when the first spiral engaging portion is a linear groove in the axial direction, that is, a rotation stop: S = (θ ₂ −θ ₃ ) × L ₂ (1-L ₂ / L ₁ ) = (θ _{Two
-Θ 3) × L 2 ......... (} 4) the push rod of the feed amount, which has multiplied the lead of the original tube to the relative rotation angle between the two cylinder is a conventional feeding mechanism.

L ₁ = −L ₂ , that is, when the first spiral engaging portion and the second spiral engaging portion are reverse spiral engaging portions (left and right) having the same lead: S = (θ ₂ − θ ₃ ) × (−L ₂ ² ) / (− 2L ₂ ) =
_{(Θ 2 -θ 3) × L} 2/2 ......... (5) feed amount of the push rod (speed), to 1/2 i.e. half compared to (4) in the case of the feed-out lead (speed) is It will be halved.

[0008] L ₁ = _L 2/2, i.e., when the first helical engagement portion of the lead is a half of the second helical engagement portion of the _{lead: S = (θ 2 -θ 3} ) × (L 2 _{^{2/2) / (- L}} 2/2)
_{= - (θ 2 -θ 3)} × L 2 ......... (6) feed amount of the push rod (speed) is equal its direction is opposite absolute value as compared with the equation (4) For.

L ₁ = 2L ₂ , that is, when the lead of the first spiral engaging portion is twice the lead of the second spiral engaging portion: S = (θ ₂ −θ ₃ ) × 2L ₂ ² / (L ₂ ) = (Θ ₂ −θ
₃ ) × 2L ₂ ... (7) The push-out amount (speed) of the push rod is twice as much as the formula (4) in the case of, and the feeding speed is doubled.

Transforming equation (3) gives the following. S = (θ ₂ −θ ₃ ) × L ₁ L ₂ / (L ₁ −L ₂ ) = (θ ₂ −θ ₃ ) × L ₂ / (1-L ₂ / L ₁ ) ...
(8)

From this, the following can be said. (A) When the signs of L ₁ and L ₂ are opposite (the twisting direction of the spiral engaging portion is opposite): (1-L ₂ / L ₁ )> 1, the feeding speed becomes slower than in the case of . Although it takes a lot of time to form a spiral engaging portion having a low lead-out speed and a short lead, in this mode, a lead-out mechanism having a slow lead-out speed can be obtained even if the lead of the spiral engaging portion is long. (B) L ₁ and L ₂ have the same sign, and | L ₂ / L ₁ | <1
When (| L ₁ | <| L ₂ |): (1−L ₂ / L ₁ ) <1 and the feeding speed is faster than in the case of. (C) If L ₁ and L ₂ have the same sign, 2> | L ₂ / L ₁ |>
When 1: The feeding direction is opposite to that of, and the feeding speed becomes faster. (D) When the signs of L ₁ and L ₂ are the same and | L ₂ / L ₁ |> 2: The feeding direction is opposite to the case, and the feeding speed becomes slow.

[0012]

DETAILED DESCRIPTION OF THE INVENTION A detailed description will be given below with reference to the drawings. FIG. 1 is a sectional view showing the structure of a stick-shaped cosmetic material feeding container according to an embodiment of the present invention. The stick-shaped cosmetic material feeding container 1 includes a tip sleeve 3, a push rod 7 with a chuck 5, and a base barrel 9. Tip sleeve 3
Is a cylindrical shape, and the chuck 5 and the stick-shaped decorative material 2 held by the chuck slide in the axial direction through the inner hole 23 penetrating therethrough. The inner hole 23 is provided with a first spiral groove 25 (third screwing portion) . The first spiral groove 25 is the outer periphery of the upper portion of the push rod 7 (the root of the chuck 5).
Screwed with the first protrusion 31 (first screwing portion) protruding from the
Then, the first spiral engaging portion is configured . Chuck 5 has inner hole 2
When the rod-shaped decorative material 2 advances and retracts within 3, the stick-shaped decorative material 2 is drawn out and drawn in from the tip end opening 21. The lower part of the sleeve 3 is 1
The rotation connecting portion 33 has a smaller step outer diameter.
The rotation connecting portion 33 is fitted into the inner diameter of the rotation connecting portion 37 of the original cylinder 9, and a fitting concave and convex portion 35 is formed on both of them. Therefore, the two tubes 3 and 9 are rotatably connected to each other.

The push rod 7 is a straight round rod as a whole, and the chuck 5 is integrally formed at its tip (upper end).
In addition, the first protrusion 31 (first
Screwing portion) has a second protrusion 45 ( second screwing portion) at the lower end.
Are formed. The second protrusion 45 (second screwing portion) is the original
The second spiral groove 43 (fourth screwing portion) of the cylinder 9 is screwed into
It constitutes two spiral engaging portions.

The base cylinder 9 has a bottomed (bottom 47) cylindrical shape and has a second spiral groove 43 in its inner hole. The rotation connecting portion 37 of the former cylinder 9 is located outside the rotation connecting portion 33 of the front cylinder sleeve 3. There is no particular problem with regard to the internal / external relationship in the pivotal connecting portion, whether it is internal or external. Second of the inner hole of the source tube 9
As described above, the spiral groove 43 is screwed with the second protrusion 45 on the lower portion of the push rod 7. Reference numeral 41 in the source cylinder 9 is a spiral stripe between the second spiral grooves 43. The bottom 47 defines the retracted end of the push rod 7.

In the feeding container shown in FIG. 1, the tip sleeve 3 is provided.
When the base cylinder 9 and the base cylinder 9 are relatively rotated, the push rod 7 moves the cylinders 3,
It is pulled out and pulled in in 9 in the axial direction. In the case of this figure, the first first spiral groove 25 has a right-hand thread, the second spiral groove 43 has a left-hand thread, and both leads are equal. Therefore,
This corresponds to the case described above, and the feeding direction is the same and the feeding speed is halved as compared with the case where the front sleeve 3 has the synchronous engagement vertical groove. In addition, at the time of feeding, the push rod advances and retreats while rotating in each cylinder.

FIG. 2 is a sectional view showing the structure of a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. The delivery container of FIG. 2 has a structure quite similar to that of the delivery container of FIG.
Parts and portions denoted by the same reference numerals in FIG. 1 and FIG. 2 have the same names (hereinafter the same), except where noted. The delivery container of FIG. 2 is different from the delivery container of FIG. 1 in that the first spiral groove 25 (the third screw engagement) in the sleeve sleeve 3 is formed.
Part) is a left screw like the second spiral groove 43 (fourth screwing part) in the base cylinder 9. The lead of the first spiral groove 25 is almost half the lead of the second spiral groove 43.

FIG. 3 is a sectional view showing the structure of a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. The characteristics of the feeding container of FIG. 3 are as follows. A male screw (first screwing portion ) 32 which is formed in a perfect shape is provided on the outer periphery of the upper half portion of the push rod 7. The male screw 32 is formed in the inner hole 2 of the front sleeve 3.
3 is a female screw-shaped projection (third screwing)
Parts) and 26 screwed that make up the first helical engagement portion. On the other hand, such a complete male screw is not provided in the lower half portion of the push rod 7, but only the outer surface protrusion (second screwing portion ) 45 is provided at the lowermost end portion. The outer surface protrusion 45 is a spiral groove (fourth screwed portion) formed in the inner hole 42 of the base cylinder 9.
The second spiral engaging portion is formed by screwing with 43 . In general,
In the screw type feeding mechanism, if either one of the female screw and the male screw to be screwed is made completely (continuously), the other one may be a screw-shaped projection.

The front end opening 21 of the front sleeve 3 is not narrowed to a small diameter, and the inner hole 23 is a straight hole.
This is a structure in which the push rod 7 is incorporated into the sleeve 3 from the front end port 21 side (from above) of the sleeve 3. for that reason,
The lower end of the push rod 7 has a bend structure and can pass through the female screw-shaped protrusion 26. That is, a slit 51 (hollow portion) is formed between the left and right protrusions 45 at the lower end of the push rod 7, and when an inward force is applied to the protrusion 45 and the bend side piece 53, they are displaced toward the inside. The outer diameter becomes smaller, and it can pass through the female screw-shaped protrusion 26. Thanks to this bend structure, the chuck 5 and the protrusion 45
Can be formed integrally with the push rod 7, and the number of parts can be reduced.

Forward limit of the push rod 7 (stroke end)
Is determined by the upper end surface of the protrusion 45 contacting the lower end surface 38 of the front sleeve 3.

FIG. 4 is a side sectional view showing a stick-shaped cosmetic material feeding container according to one embodiment of the present invention. The stick-shaped cosmetic material feeding container 101 shown in FIG. 4 is composed of parts such as a cap 103, a tip cylinder sleeve 105, a chuck 107, a push rod 109, a base cylinder 111, and a main body cylinder 113, and parts from the top to the bottom. The stick-shaped cosmetic material feeding container in this figure has a protrusion 135 on the outer surface.
(First screw portion), push rod 109 (with chuck 107) having a protrusion 141 (second screw portion ), and tip having a spiral groove 129 (third screw portion ) screwed with the protrusion 135. Tube
A spiral groove 139 screwed with the rib 105 and the protrusion 141.
The front cylinder sleeve 10 having a (fourth screwing portion ) and a main cylinder 111 rotatably connected to the front cylinder sleeve 105.
5 and by relatively rotating the original cylinder 111 you characterized by feeding the push rod 109.

Each section will be described below. Cap 103
Has a cylindrical shape with a top and covers the outer circumference and the upper part of the front sleeve 105. A hook 121 is provided below the top portion 120 of the cap 103 so as to project downward.
Engages with the inner protrusion 123 inside the tip of the sleeve sleeve 105, and the cap 103 can be freely attached to and detached from the sleeve sleeve 105.
To lock in.

2 is provided in the inner hole 127 of the front sleeve 105.
A spiral groove 129 is formed. Spiral groove 129
Starts from the lower end surface of the front sleeve 105 and ends near the upper end of the front sleeve 105. Tip sleeve 10
A fitting concave and convex 137 is formed on the outer periphery of the middle part of 5 and is rotatably connected to the main body cylinder 113. The main body tube 113, since the original cylinder 111 are integrally fixed (or assembled), based on cylinder 111 also tip cylinder sleeve 1
05 is rotatably connected. Tip sleeve 105
The lower half portion 138 extends downward long and is fitted to the inner surface of the main body cylinder 113.

The chuck 107 has a cylindrical shape with a bottom, and holds the tail portion of the stick-shaped decorative material 104 in an inner surface recess 131 thereof. A pair of left and right protrusions 1 is provided on the outer surface of the chuck 107.
35 (1st screwing part) is protrudingly provided. This protrusion 13
5 is a spiral groove 129 (the third groove in the inner hole of the front sleeve 105) .
Screwed engagement portion) and that make up the first helical engagement portion. A push rod 109 extending downward is integrally connected to the chuck 107. On the outer surface of the lower end of the push rod 109, a pair of left and right protrusions 141 (second screwing portions) are provided in a protruding manner. The projection 141 is provided with a spiral groove 139 (fourth groove) in the inner hole of the base cylinder 111 .
The second spiral engagement portion is configured by being screwed together with the screwing portion) .

As described above, the base cylinder 111 has the spiral groove 139 formed in its inner hole. The spiral groove 139 is the original tube 1
It is missing (penetrating) above and below 11. Original cylinder 111
The main body tube 113 and the main body tube 113 are integrally connected at the tail end portion 143.
The main body cylinder 113 covers the outer surface of the lower half portion of the front cylinder sleeve 105 .

[0025] In stick type cosmetic material feeding container of Figure 4, when rotated relative to the front cylinder sleeve 105 and the main body tube 113, butt
The origin 135 moves along the spiral groove 129, and the protrusion 141
Moves along the spiral groove 139. Since the lead L ₁ of the spiral groove 129 is L ₁ = −1.5L ₂ with respect to the lead L ₂ of the spiral groove 139, the following is obtained from the equation (3). S = (θ ₂ −θ ₃ ) × L ₁ L ₂ / (L ₁ −L ₂ ) = (θ
₂₋ θ ₃ ) × (−1.5L ₂ ² ) / (− 2.5L ₂ ) =
3/5 × (θ ₂ −θ ₃ ) × L _2, that is, the feeding speed is 3 / when compared to the case where the front sleeve has a synchronous engagement vertical groove.
5 (= 60%). In the stick-shaped cosmetic material feeding container shown in this figure, the upper limit of the stroke limit is determined by the projection 135 and the end of the spiral groove 129 contacting each other, and the lower limit is determined by the contact between the upper end of the original cylinder 111 and the lower end step of the chuck 107.

FIG. 5 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. The characteristics of the delivery container of FIG. 5 when compared with the delivery container of FIG. 4 are as follows. Male screw 245 (first screwing portion) and spiral groove 22
5 (third screwing portion), the first spiral engaging portion, and
And the male screw 271 (second screwing portion) and the spiral groove 255.
Any of the second spiral engaging portions screwed with the (fourth screwing portion) has a large lead, but is a multi-thread screw having a narrow pitch. Alternatively, when viewed in a circumferential cross section, the screws are present in a continuous (continuous jagged) manner. Therefore, the push-out rod (decorative material) is not easily loosened and is smooth. Such properties help to give the cosmetic a high-grade appearance. Incidentally, it is preferred that such screws in two spiral engagement portion co.

A hakama member 205 is provided. The hakama member 205 is a tubular body made of thin metal. The upper part of the hakama member 205 is a cap mounting portion 230. Same section 230
A fitting concave and convex 231 is provided on the outer periphery of the cap 202, and the lower end of the cap 202 is attached to the fitting concave and convex 231. Cap mounting part 230
An outer projecting portion 233 is formed underneath to extend outward in an accordion shape. The outer protrusion 233 becomes a point on the appearance (design) of the container 201 and enhances the luxury of the container.

The lower part of the hakama member 205 is fitted to the inner surface of the main body cylinder 208. Knurling 251 is applied to the fitting portion, and when the hakama member 205 is press-fitted into the main body cylinder 208, the knurling 251 is engaged with the hakama member 2
06 and the main body cylinder 208 are firmly fixed. In addition,
This press-fitting is performed after the lower part of the sleeve sleeve 204 and the O-ring 209 are assembled in the main body cylinder 208.

An O-ring 209 is attached to give a rotational resistance between the front sleeve 204 and the main barrel 208. The lower end 263 of the hakama member 205 holds the O-ring 209 between the lower end 263 and the outer step 265 at the lower portion of the front sleeve 204. The O-ring 209 includes the front sleeve 204 and the main body.
It is crushed a little between the cylinders 208, giving a certain resistance to the rotation of both, and further suppressing rattling at the time of feeding the container. In addition, the outer step portion 265 of the front sleeve 204 is O-shaped.
The hakama member lower end portion 263 is pressed through the ring 209.

FIG. 6 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. (A) shows a state in which the push rod is pulled in, and (B) shows a state in which the push rod is extended.
FIG. 7 is a side view of the base cylinder 310 of the container of FIG. The first feature of the container of this embodiment is that the feeding mechanism is unitized. That is, the front sleeve 3
04, a push rod 307 with a chuck 306, and a base cylinder 310.
It is a unit that completely has a feeding mechanism with the three parts. This unit is a body tube 3 of various designs
By combining with 08 and the hakama member 305, various stick-shaped cosmetic material feeding containers can be provided. Further, since the mechanical portion can be standardized as a unit, it leads to a reduction in manufacturing cost such as reducing the types of molding dies. The main body cylinder 308
Does not have to have a bottom as shown in the figure, but may be a plastic molded product having a bottom.

Details of the mechanical unit will be described. First, regarding the upper portion ( the portion where the spiral groove 325 having the third screwing portion is cut) of the front tube sleeve 304 is shown in FIG.
Examples are those substantially similar to the front barrel sleeve 204. An annular convex portion 363 that protrudes inward is formed on the lower portion of the front sleeve 304. This annular protrusion 363
Is the annular recess 3 formed on the outer periphery of the upper portion of the base cylinder 310.
65 rotatably engaged. The lower portion 366 of the front barrel sleeve 304 frictionally slides on the inner periphery thereof with the outer periphery of the sliding piece 367 provided in the middle section of the base barrel 310. Thereby, an appropriate sliding resistance is given between the front sleeve 304 and the base sleeve 310. That is, the sliding piece 367 (described later in detail) plays the same role as the O-ring 209 in the container of FIG. The lower end 369 of the front sleeve 304 is the main cylinder 3
It is located on the large-diameter portion 373 in the middle of 10.

With respect to the push rod with chuck 307, the portion of the chuck 306 has substantially the same structure as the chuck 206 of FIG. On the other hand, regarding the push rod 307 itself,
Unlike the push rod 207 of FIG. 5, a spiral groove 371 that is a second screwing portion is cut on the outer periphery. The spiral groove 371 has a relatively small number of threads and a coarse pitch. The spiral groove 371 is provided with a fourth screw-engagement projectingly provided on the inner surface of the upper end portion of the base cylinder 310.
The projection 355 of the part is screwed. Thus, digging part <br/> outer periphery spiral groove of the male, it is also possible to provide a protrusion to be engaged with said spiral groove on the female side of the component.

The base cylinder 310 is a cylindrical part as a whole, and is arranged on the outer peripheral part of the push rod 307, on the front cylinder sleeve 304, the hakama member 305, and the inner peripheral part of the main body cylinder 308. Ex
The cylinder 310, like the push rod 307, is usually manufactured by plastic injection molding. Protrusions 355 are provided on the left and right above the inner hole 356 of the original cylinder 310. This protrusion 355
Is screwed into the spiral groove 371 on the outer surface of the push rod 307.
An annular recess 365 that is rotatably engaged with the annular protrusion 363 of the front sleeve 304 is formed on the upper portion of the outer surface of the original barrel 310. These annular convex portion 363 and annular concave portion 3
By 65, the front cylinder sleeve 304 and the main cylinder 310 are rotatably connected.

Sliding pieces 36 are provided on the left and right of the middle part of the base cylinder 310.
7 are formed. As shown in FIG. 7, the sliding piece 367
Are provided between two slits 367b which are cut in the side wall of the base cylinder 310 and which are parallel to each other in the vertical direction. On the outer surface of the central portion of the sliding piece 367, a protrusion 367 rising on the outer periphery is formed.
a is formed. These protrusions 367a (axisymmetrically
The dimension between the tops (there are two on the left and right of the original cylinder ) is slightly larger than the inner diameter of the sleeve lower portion 366, and the protrusion 367a is pressed against the inner surface of the sleeve lower portion 366. Further, the sliding piece 367 is slightly bent inward due to elasticity. Therefore, appropriate resistance is given to the sliding (container feeding operation) between the front sleeve 304 and the base sleeve 310.

The outer circumference of the lower part of the base cylinder 310 has a diameter larger by one step (large diameter portion 373). A synchronous engagement portion 375 is formed below the large diameter portion 373. The synchronous engagement portion 375 is
It comprises a vertical rib on the outer surface of the base cylinder 310 and a vertical groove on the inner surface of the hakama member. The rib and the groove engage with each other to prevent the base cylinder 310 and the hakama member 305 from rotating.

Bend stoppers 377 are provided on the left and right of the lowermost end of the base cylinder 310. As shown in FIG. 7, the bend stopper 377 is formed by inserting a downward U-shaped slit 377b in the side wall of the base cylinder 310. The upper end of the bend stopper 377 is an outer protrusion 377a protruding outward, and the lower side thereof is an overhanging slope. The bend stopper 377 bends inward and outward of the original cylinder centering on the lower root. Therefore, when the original cylinder 310 is incorporated into the hakama member 305 from above, the bend stopper 377 can bend inside and pass through the inside of the original cylinder 310 downward. However, when the original cylinder 310 is completely inserted, the bend stopper 37
When 7 comes out from the lower end 376 of the hakama member 305, the bend piece 3
77 to spring back, become a state shown in FIG. 6, outside collision
The portion 377a projects below the lower end 376 of the hakama member 305, and the original cylinder 310 does not come out of the hakama member 305.
At this time, the lower end of the large diameter portion 373 comes into contact with the upper end of the synchronous engagement portion 375, and eventually the base cylinder 310 and the hakama member 305 are fixed in the vertical direction.

In the container of this embodiment, as shown in FIG. 6B , the upper limit of the chuck 306 (the limit of pushing out the push rod) is
It is determined by the contact between the step portion of the tip end port 323 of the front sleeve 304 and the step portion 341a on the outer periphery of the upper end of the chuck 306.
Further, the pull-in limit of the push rod is determined by the lower end surface of the chuck 306 and the upper end surface of the original cylinder 310 contacting each other in the unit state. Therefore, even in the unit state, there is no concern that the chuck 306 (push rod 307) will fall out from the front sleeve 304.

When assembling the unit, first,
The push rod 307 is screwed into the original cylinder 310 to be assembled. Next, this assembled product is put into the sleeve from below the front sleeve 304. At this time, the annular protrusion 36 of the sleeve
3 is not formed yet, and there is no concern that the same portion 363 will interfere with the outer surface of the upper portion of the original cylinder 310. The former cylinder 310 after incorporation completion leading tube Three <br/> Bed 304, to form an annular convex portion 363 to narrow down the front barrel sleeve 304 from the outside.

Other features of the container of the embodiment of FIGS. 6 and 7 are as follows. The chuck down does not occur when the chuck is anywhere within the sleeve because the rotational speeds are offset by the combination of forward and reverse threads. Therefore, the cup down locks above and below the chuck (plate), which have been present in conventional lipstick containers, are unnecessary.

The outer diameter of the container can be reduced as compared with the conventional one in which the rotation stopping member is introduced into the front sleeve. If the bend piece 377 is of a detachable type, a cartridge type container in which the unit can be replaced can be used.

FIG. 8 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. The first feature of the stick-shaped cosmetic material feeding container of this embodiment is that the push rod 406 is hollow and the main cylinder 408 is provided in the center thereof. Also, the first screw engagement of the first spiral engaging portion
459 which is a portion and the spiral groove 4 which is a third screwing portion.
53 is provided on the outer surface below the chuck 405.

The push rod 406 of the container shown in FIG.
The diameter is substantially the same as that of No. 5, and is formed as a hollow body that hangs down from the chuck. A spiral groove 447, which is a second screwing portion, is formed on the inner surface of the push rod 406 from top to bottom. Reference numeral 449 is a spiral stripe between the spiral grooves. A base cylinder 408 is present in the hollow portion of the push rod 406. In the spiral groove 447 , a protrusion 461 which is a fourth screwing portion protrudingly provided on the outer surface of the upper end portion of the original cylinder 408.
Are screwed together to form a second spiral engaging portion . Push rod 40
A protrusion 459 (first screwing portion) is provided on the outer surface of the lower end portion of the protrusion 6. The protrusion 459 includes a first and screwed with the inner surface of the spiral groove 453 of the sleeve bottom 455 (third engagement portion) 1
Of the spiral engaging portion .

The front cylinder sleeve 404 is a long cylinder extending over substantially the entire length of the container 401. Of the front cylinder sleeve top 427
Is a simple pipe with a flat inner and outer surface. Bottom 455 of front barrel scan <br/> sleeve is slightly thicker than the upper portion 427 of the front cylinder sleeve, spiral groove 453 is formed on the inner surface thereof. This spiral groove 453 has a lower end of the push rod described above.
The protrusion 459 is screwed. A step 451 is formed on the outer surface of the boundary between the sleeve upper portion 427 and the lower portion 455. The step portion 451 abuts the lower surface of the step portion 433 on the upper portion of the main body cylinder 407 so that the front sleeve 404 does not come off on the main body cylinder 407.

The base cylinder 408 which is the central axis of the container in FIG.
It is located in the hollow portion of the push rod 406. The upper end of the former tube 408 is in the state of FIG. 8 (the lower limit of the pull-push rod), the push rod 406
Has reached the upper end of the hollow part. A projection 461 is provided on the outer surface of the upper end portion of the source cylinder 408. This protrusion 461
Is screwed into the spiral groove 447 on the inner surface of the push rod 406.

A lower flange 465 is provided at the lower end of the base cylinder 408.
Is provided. The middle portion 463 of the source cylinder 408 has a straight pipe shape. The outer peripheral surface of the lower flange 465 is fitted to the inner surface of the lower end portion of the main body cylinder 407. Are formed Hamagogakaritome irregularities 467 between the flange outer peripheral surface 466 and the main body tube 407 the lower end inner surface, the original cylinder 408 and the
The body cylinder 407 is non-rotatably connected.

The main body cylinder 407 is a thin hollow cylinder (without a bottom) which constitutes the outermost layer of the lower half of the container 401. Body tube 4
A cap mounting portion 430 is provided on the upper portion of 07, and a locking protrusion 431 is provided in a protruding manner. Cap mounting portion 430
The step portion 433 described above is formed under the. On the inner surface of the lower end portion of the main body cylinder 407, the above-mentioned locking unevenness 467 is formed.

The method of assembling the container shown in FIG. 8 is as follows. First, the base cylinder 408 is screwed into the hollow portion of the push rod 406. Next, the front sleeve 404 is dropped onto the outer circumference of the push rod 406. Further, the main body cylinder 4 is attached to the outer circumference of the front sleeve 404.
Insert 07. At this time, with the outer circumference of the flange of the original cylinder 408
The entire structure is assembled by engaging the engaging concave and convex portions between the inner surfaces of the lower end of the main body cylinder 407. The threaded relationship (relationship between the protrusion and the groove) between the push rod 406 and the base tube 408 may be reversed, or may be a female screw. Features of Figure 8, since the core chuck or the cylindrical body (leading tube sleeve) is the inner surface flat cylindrical body, when using the aluminum sleeve only this portion, FIG. 6
The unit price can be cheaper than the sleeve.

FIG. 9 is a side sectional view showing a stick-shaped cosmetic material feeding container which is a modified example (feeding speed changing type) of the stick-shaped cosmetic material feeding container of FIG. It should be noted that, in the reference numerals in FIG. 9, the reference numerals in which the last two digits are the same as those in FIG. 4 indicate the same portions as those in FIG. 4 unless otherwise specified below. (A) is a side sectional view of the whole,
(B) is a side sectional view of the spiral cylinder portion as viewed from the direction rotated 90 ° from (A). The rod-shaped cosmetic material feeding container, the racemate
A vertical groove 540 extending in the axial direction of the tubular body is formed at the lower end of the internal groove (fourth screwing portion) 539.
The outer surface protrusion 541 (second screwing portion) that is screwed with 9 also engages with the vertical groove 540. When the outer surface protrusion 541 is engaged with the vertical groove 540, the feeding speed is fast, and when the outer surface protrusion 541 is screwed into the spiral groove 539, the feeding speed is slow.

That is, in the inner hole of the base cylinder 511, a vertical groove 540 is cut in the lower half portion thereof and a spiral groove 539 is cut in the upper half portion thereof, and both 540 and 539 are smoothly continuous. The spiral groove 539 is cut so as to reach the upper end of the base cylinder 511, and the vertical groove 540 is cut so as to reach the bottom end of the base cylinder 511.

At the lower end of the vertical groove 540, a transverse step portion 542, which extends downward in the space, is connected. The protrusion 541 advances laterally along the transverse step 542. Transverse step 5
A lock protrusion 544, which is a small protrusion, is provided on the protrusion 42 to give a light resistance to the transverse protrusion 541.
Then, the movement of the push rod is locked at the lower limit of the push rod 509,
Unless there is an artificial turning operation, the push rod 509 is driven by natural vibration.
Is not to be raised.

When the tip sleeve 505 and the main body cylinder 513 are relatively rotated in the stick-shaped cosmetic material feeding container of FIG. 9, first, the protrusion 541 (second screwing portion) at the lower end of the push rod 509 is traversed. It goes through the portion 542 and enters the vertical groove 540. Then, the protrusion 541 rises in the vertical groove 540. At this time, push rod 5
09 and the base cylinder 511 (main body cylinder 513) are synchronously engaged, and the front cylinder
The helical groove 529 (third screwing portion) of the sleeve 505 is fed at a feeding speed by the lead.

Next, the projections 541 push rod 509 rises and enters the spiral groove _539, because it is L 2 = _-2L 1/3, feeding speed is as follows. S = (θ ₂ −θ ₃ ) × L ₁ L ₂ / (L ₁ −L ₂ ) = (θ
^{_{2 -θ 3) × (-2L 1}} 2/3) ÷ (5L 1/3) = -
_{2/5 (θ 2 -θ 3) L} 1

On the other hand, L_Two= ∞ (vertical groove 540) S
Is the following. S = (θ_Two−θ_Three) × L₁/ (L₁/ L_Two-1) =-
(Θ_Two−θ_Three) × L₁ Therefore, the protrusion 541Spiral grooveGo out when entering 539
Speed is reduced to 40%.

That is, in the stick-shaped cosmetic material feeding container 501 of the embodiment shown in FIG. 9, when the push rod 509 is fed from the bottom to the top, the stroke of the first half is early and the stroke of the latter half is late. it can. By reversing the vertical relationship of the spiral groove 539 and the vertical groove 540, the first half stroke can be delayed and the second half stroke can be advanced early, which makes variable expansion possible without increasing the number of parts. .

In the stick-shaped cosmetic material feeding container shown in FIG. 9, the cap 503 and the main body cylinder 513 are locked by the locking portions 530 and 534 having the fitting irregularities 532.

[0056]

As is apparent from the above description, the present invention exhibits the following effects. A completely different new feeding mechanism ideas from the conventional feeding mechanism, the push rod leading tube Three
Since it is fed while rotating with an imaginary lead that is not threaded on either the sleeve or the base cylinder , it is possible to provide a feeding container having new characteristics. In the combination of the forward screw and the reverse screw, the feeding pitch becomes short, so that a feeding container corresponding to this can be provided even when a delicate feeding speed is required.

In the embodiment of FIG. 9, a spiral engagement portion
By combining the spiral groove of No. 1 and a groove hole of a different type (vertical groove or reverse inner surface spiral engaging groove)
A feeding container can be provided. Normally, in manufacturing a spiral cylinder with a short delivery pitch (injection molding), it is necessary to extract the core pin by rotation, but by using a reverse spiral engagement part and a forward spiral engagement part, a spiral engagement with a large lead angle is achieved. Since the feeding pitch can be shortened even in the part, it is less necessary to use the core pin rotation extraction as compared with the conventional one.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a configuration of a stick-shaped cosmetic material feeding container according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the structure of a stick-shaped cosmetic material feeding container according to another embodiment of the present invention.

FIG. 3 is a sectional view showing the structure of a stick-shaped cosmetic material feeding container according to another embodiment of the present invention.

FIG. 4 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention.

FIG. 5 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention.

FIG. 6 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention. (A) shows a state in which the push rod is pulled in, and (B) shows a state in which the push rod is extended.

7 is a side view of a base cylinder 310 of the container of FIG.

FIG. 8 is a side sectional view showing a stick-shaped cosmetic material feeding container according to another embodiment of the present invention.

FIG. 9 is a side sectional view showing a stick-shaped cosmetic material feeding container which is a modified example (feeding speed changing type) of the stick-shaped cosmetic material feeding container of FIG. 4.

[Explanation of symbols]

1 Bar-shaped cosmetic material feeding container 2 Bar-shaped cosmetic material 3 Tip cylinder sleeve 5 Chuck 7 Push rod 9 Original cylinder 21 Tip opening 23 Inner hole 25 1st spiral groove (3rd screwing part) 26 Female screw-shaped protrusion 27 Side piece 29 Recess 31 1st protrusion ( 1st screwing part) 32 Male screw 33, 37 Rotation connecting part 35 Fitting unevenness 38 Lower end surface 41 Spiral line 42 Inner hole 43 2nd spiral groove (4th screwing part) 45 Second protrusion (Second screwing part) 47 Bottom 51 Slit 53 Bend side piece

Claims (2)

(57) [Claims] 1. A chuck for holding a stick-shaped cosmetic material, a push rod hanging down from the chuck, a front barrel sleeve for moving the chuck forward and backward, and a base barrel containing a push rod rotatably connected to the front barrel sleeve. a stick type cosmetic material feeding container with a second said push rod has a first engagement portion and the second engagement portion, the leading tube sleeve is engaged with the first engagement portion Three
A fourth screwing portion having a screwing portion of, and the base cylinder is screwed with the second screwing portion.
It has a first threaded through and the first engagement portion and the third engagement portion
A second screw is formed by the second screwing portion and the fourth screwing portion while constituting a rotation engaging portion.
Configure旋係engaging portion, the chuck by relatively rotating the said leading tube sleeve and the original sleeve is retractable within the leading tube sleeve, the stick type cosmetic material feeding from the leading tube sleeve with・ Bar- shaped cosmetic material feeding feature characterized by being retracted
vessel. 2. A vertical groove or a vertical rib extending in the axial direction of the tubular body is formed at one end of the threaded portion , and a mating threaded portion of the mating threaded portion is the vertical groove or The stick-shaped cosmetic material feeding container according to claim 1, which also engages with the vertical ribs.