JP3037542B2 - Cartridge for stick-shaped cosmetic material feeding 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 cartridge for a stick-shaped cosmetic material feeding container. More specifically, the present invention relates to a rod-shaped cosmetic material feeding container cartridge capable of reducing the diameter of a cartridge and reducing the number of parts by effectively using a bend piece and a chuck stopper portion of a core chuck. Furthermore, the aspect having a pull spring is useful for preventing damage to the rod-shaped decorative material in the cartridge and the like, and relates to a cartridge for a rod-shaped decorative material feeding container excellent in preventing the core chuck from coming off.

[0002]

2. Description of the Related Art There are two types of containers for dispensing stick-shaped decorative materials, one being a cartridge type and the other being not. In the cartridge type container, a core material (hereinafter, referred to as a cosmetic material) of a different color is built in each cartridge, and the cartridge is appropriately replaced and mounted on the container body, and a cosmetic material such as an eyebrow ink of a desired color is attached. Can be used.

[0003] Cartridges using a tension spring include:
There is a cartridge proposed in Japanese Utility Model Publication No. 3-31232. In this cartridge, when the push rod separates from the core chuck, the tension spring is in a free state. At this time, if the cartridge is exposed to an unexpected movement, the tension spring, the core chuck, and the stick-shaped cosmetic material will dance in the axial direction and the radial direction in the cartridge body. When that happens,
The soft cosmetic material is scratched or broken, making it unusable or impairing its commercial value. Such a danger is considerably large because the cartridge of the cosmetic material container is often distributed and sold separately from the container body, or removed from the container body and carried by the consumer. Further, the cartridge of the present invention requires a tension spring, a core chuck, and a tail plug for preventing the stick-shaped decorative material from coming out of the rear end of the cartridge body.

In order to improve the problem of the cartridge disclosed in Japanese Utility Model Publication No. Hei 3-31232, the present inventor first described
Invented a cartridge for a stick-shaped cosmetic material feeding container described in Japanese Patent Application No. 5-208163. FIG. 5 is a view showing a cartridge (reference invention) described in the application. The lead chuck 321 is at the retreat limit, (A) is a sectional view, and (B) is a side view of the cartridge 301 of (A). The cartridge 301 is basically a cartridge cylinder
The body 11, the core chuck 321, and the extension spring 31 are composed of three parts. The cartridge cylinder 11 has an elongated cylindrical shape, and has a tip opening 13 at a tip (upper end in the figure),
It has a rear end opening 14 at the rear end (lower end in the figure). The rod-shaped decorative material 5 contained in the cartridge 301 enters and exits through the distal end opening 13. The inner diameter of the tip opening 13 is a dimension obtained by adding a necessary clearance to the outer diameter of the rod-shaped decorative material 5. The rear end opening 14 is provided with a rear end locking surface 19 (to be described in detail later) of the extension spring. Also, at the bottom of the cylinder,
A chuck stopper 316 (which will be described in detail later) having an inner protrusion 317 protruding from the inner surface of the cylinder is provided.

The core chuck 321 has a cylindrical shape with a bottom, and is inserted in the cartridge cylinder 11 in the axial direction (vertical direction in the figure).
It is slidably housed in. The interior of the core chuck 321 is a concave cavity 323 , in which the rod-shaped decorative material 5 is placed.
The rear end is inserted and held. The rib 325 has a function of holding the stick-shaped decorative material more firmly on the core chuck. A core chuck slit (not shown) is also formed on the side wall of the core chuck 321 , so that when the rear end of the rod-shaped decorative material is inserted, the side wall of the core chuck is easily expanded, which is impossible. The bar-shaped decorative material is not easily broken when force is applied.

[0006] lower surface of the bottom of the core chuck 321 is provided with a spring tip engaging portion 327 which is a ring-shaped, the outer surface lower end portion of the Dokakaritome portion 327, a spring locking projection 328 is projected ing. The tip portion 33 of the tension spring 31 is fitted into the locking portion 327 , and the spring wire is hooked on the spring locking projection 328 so that the spring tip is locked by the core chuck.

The extension spring 31 has a spring tip 33 fitted on the core chuck 321 and a spring intermediate portion 37 having a smaller diameter than the spring tip 33.
And a spring rear end 35 having a diameter larger than the spring front end 33. The upper end surface of the rear end 35 of the extension spring 31 is in contact with a stepped spring rear end locking surface 19 provided inside the rear end opening 14 of the cartridge cylinder 11. Rear end 1
4 is the core chuck 3 on the inner surface of the cartridge cylinder 11.
21 has a larger diameter than the sliding portion. In this way, the spring rear end 35 is positioned so as not to move in the direction of the tip of the cartridge cylinder 11 (upward in the figure).

The lower end surface of the distal end portion 33 of the extension spring 31 is in contact with the upper end portion of the inner projection 317 of the chuck stopper 316 , and the extension spring 31 and the core chuck 321 are further retracted (downward in the figure). Movement). The upper end face of the stopper in the projecting portion 317, in some cases, against the lower end surface of the spring tip engaging portion 327 of the core chuck 321 and those, block the retraction of the core chuck 321.

In the present invention , the chuck stopper 316 is formed integrally with the cartridge cylinder 11. H
Jack stopper 316, as shown in FIG. 5 (B), the slit portions of the side wall of the cartridge cylinder 11
At 318 , it is formed in a shape like a tongue cut out on three sides. Upper chuck stopper 316 is slightly thicker than the side wall of the cartridge cylinder 11, the inside of the upper portion, has an inner protrusion 317 which projects into the interior of the cartridge cylinder 11 (FIG. 5 (A)). The profile inside the chuck stopper 316 has a rounded (arc) chamfer at the upper end, and the top of the round is most protruded inward, and has a gentle slope from the top to the bottom to form the original cylinder inner surface. To join.

[0010] tongue chuck stopper, by selecting the materials and dimensions appropriately, it is possible to bend (bent) from the root of the tongue. When inserting the core chuck 321 from the rear end opening 14 of the cartridge cylinder 11 in the cylinder, the upper end of the core chuck 321, the chuck stopper 3
16 and press the inner protrusion 317 outward to remove the chuck stopper.
Bend 316 on the outside, and impelled inner protrusion 317 outwardly, the core chuck 321 can be inserted on the Chi catcher click stopper 3 16. After the core chuck 321 passes through the chuck <br/> stopper portion, the chuck stopper 31
6 is to spring back due to the elasticity, the inner projection 317
By protruding from the inner surface of the cartridge cylinder 11 as before, the lower surface of the core chuck or the lower end surface of the spring tip 33 abuts on the upper surface of the same, whereby the core chuck is prevented from retreating.

The cartridge cylinder 11 is generally manufactured by injection molding of plastic. cartridge
The slit in the side wall of the cylinder 11 is formed by a U-shaped pin that is inserted from the side toward the center of the cylinder until it hits the core pin. The inner protrusion 317 of the chuck stopper is
It is formed by flowing plastic into the concave part cut out on the outer surface of the core of the mold.
Since the entirety of the chuck stopper 316 bends outward, the inner protrusion 317 is retracted from the inner surface, so that the core is not undercut by the core.

The tongue-shaped chuck stopper is not limited to the type provided so as to extend from the bottom to the top as shown in the figure. The tongue-shaped chuck stopper may extend the bend downward with the bend root at the top. Further, the bend may be provided laterally (in a direction perpendicular to the axis of the cylinder). The shape of the bend portion is not limited to a rectangle, but may be a triangle, a trapezoid, a parallelogram, or a shape having a radius. It is only necessary to achieve the above-described purpose of the bend and to improve the convenience of molding such as die cutting of the core pin.

[0013]

SUMMARY OF THE INVENTION The aforementioned Japanese Patent Application No. 5-208 is disclosed.
The cartridge proposed in 163 has some difficulty in design and manufacture. Due to the production by plastic injection molding, the protrusion dimension (i in the figure) of the inner protrusion 317 cannot be made too large. For example, when the inner diameter of the plastic cartridge cylinder 11 is 5 mm, the projection dimension i is generally limited to 0.1 to 0.2 mm. Therefore, the core chuck
When the lead 321 is pulled from the front end side of the cartridge cylinder 11 toward the rear end by the pull spring 31 and returns, the lead chuck 321 gets over the stopper inner protrusion 317 and falls down. Can occur in rare cases. The case where the lead chuck returns vigorously is a case where the cartridge is quickly pulled out of the container body with the lead chuck being extended to the tip of the cartridge cylinder.

[0014] The present invention is, pull the spring and the chuck stopper portion
By effectively using the bend pieces of the core chuck, it is useful for reducing the diameter of the cartridge, reducing the number of parts, or preventing damage to the stick-shaped decorative material in the cartridge, and is particularly excellent in preventing the core chuck from coming off. It is a first object of the present invention to provide a rod-shaped cosmetic material feeding container cartridge.

The present invention has been made to achieve such a first object, but has a central idea of "the bend piece of the core chuck, the chuck stopper ,
Idea lead chuck retreat limit setting "by combination with come spring is useful in the case of other different.
Accordingly, a second object of the present invention is to provide a rod-shaped cosmetic material feeding container cartridge which is wider and can reduce the diameter of the cartridge and reduce the number of parts.

[0016]

In order to solve the above-mentioned problems, a cartridge for a stick-shaped cosmetic material feeding container according to the present invention is provided .
According to one aspect of the invention, a container provided with a push rod that can be extended in the axial direction.
It is detachably attached to the tip of the main body, and
Bar-shaped cosmetic material feeding that can feed bar-shaped cosmetic material according to
A container cartridge, wherein the cartridge is
A core member that supports a stick-shaped cosmetic material that moves by being pushed by a push rod.
And a cylindrical body that slidably accommodates the core chuck,
A tension spring for urging the core chuck toward the rear end of the cylindrical body;
The cylindrical body has a retraction limit of the core chuck.
A chuck stopper, and
The chuck has the chuck stopper at the retraction limit.
Bend piece that engages with the
With the core chuck removed from the container body,
When the extension spring is tensioned when
Is possible. In the second invention, the chucks
The topper part consists of an inner projection that projects from the inner surface of the cylinder.
Insert the lead chuck from the rear end of the cylinder
When aligning, bend piece of lead chuck
And passes through the protruding portion protruding from the inner surface of the cylindrical body
After passing, the bend piece is
And engages with the inner protrusions, thereby
Set a receding limit. In the third invention, the chuck
Assume that the stopper has a bend structure with an inner protrusion.
Was. In the fourth invention, the bend piece is the core chuck circle.
It protrudes outward from the outer surface of the cylinder.
The storage groove with which the bend piece of
As a result, the core chuck is
It is impossible to rotate and slidable in the axial direction. In the fifth invention
Is a bar that locks the tip of the pull spring.
At the end of the spring,
The large-diameter part provided at the end is the spring rear end locking surface of the cylindrical body.
The above-mentioned tension spring is locked by contact.

[0017]

According to the first aspect of the present invention, the push rod can be extended from the container body by a screw mechanism or the like. The cartridge is attached to the tip of the container body by fitting or the like, and the push rod is extended. Then, the tip of the push rod enters the inner hole of the cartridge cylinder, and the rod-shaped cosmetic material is fed out from the tip end of the cartridge cylinder according to the movement of the push rod such as pushing the core chuck supporting the rod-shaped cosmetic material. . When retracting the rod-shaped cosmetic material, when the push rod is retracted to the container body side, the retracting spring is urged by the pull spring in accordance with the retraction of the push rod, and the core chuck and the rod-shaped cosmetic material supported by the core chuck are also moved. It is pulled into the cartridge. Lead chuck, so rearmost I by <br/> the chuck stopper portion provided on the tubular body inside is defined, if not the tail plug or the like of the cylindrical body, the core chuck get out of the tubular body Absent.

[0018] In addition, the bend pieces of the core chuck Chakkusu
Retreat limit of the core chuck by engaging the topper part Ru determined.

Further, the state provided with a pull spring for urging the lead chuck to engage the core chuck toward the rear end of the cylindrical body, the core chuck even when removal of the cartridge from the container body is located in the retreat limit In, the tension spring can be kept in tension. Since the chuck stopper portion in the prior art cartridge is not provided, but retracts the core chuck in contact with the push rod as long as pull spring is tensioned, the core chuck until pull spring is free state retracted Then, the core chuck stops at that position. However, the cartridge of the present invention than chuck stopper portion is provided, the core chuck chuck stopper
It is possible to keep the tension spring in a tensioned state even when it comes into contact with the part and is in the retreat limit.

[0020] Oite to another aspect of the present invention, when the chuck stopper portion is composed of protrusion among which projects on the inner surface of the cylindrical body, inserting the core chuck from the rear end of the cylindrical body to the tubular body during assembly , bend pieces of the core chuck can lead chuck Bend inwardly to pass through the inner projection, after its passage, the bend piece is restored to the original form, the inner projection of the chuck stopper portion The contact prevents the core chuck from retreating.

A third aspect of the present invention in further the chuck stopper portion may bend structure. That is, when the lead chuck is incorporated into the cartridge cylinder, the bend structure
The chuck stopper bends outward, and after the assembly is completed, the chuck stopper springs back and projects into the cartridge cylinder inner hole . Also, such a structure
The built-in bend stopper may be formed by cutting out a part of the cartridge cylinder. In this case, since it is not necessary to use the stopper as a separate part, the parts manufacturing cost and the assembly cost can be kept low.

In the fourth aspect of the present invention, the bend piece of the lead chuck projects outward from the lead chuck, and a housing groove for receiving the bend piece is provided on the inner surface of the cylinder so as to extend in the axial direction. Have been. By doing so, the lead chuck can be prevented from rotating in the cartridge cylinder, which helps to prevent the rod-shaped cosmetic material from being damaged and the urging spring from being twisted.

In the fifth invention, the cartridge cylinder includes:
A spring rear end locking portion is provided for locking the rear end of the tension spring so as not to move at least in the direction of the cylindrical body tip. engaging portion is provided, the end portion after the previous argument spring is a lockable shape to each locking portion.

If the rear end of the extension spring is not moved at least toward the distal end of the cylindrical body, it is sufficient to give tension to the extension spring. Of course, it may not be moved in the direction of the rear end of the cylindrical body. As a method of locking the extension spring to the core chuck,
There are various methods such as hooking a spring wire (wire) on a protrusion, hooking a wire on a hole or a hook, bonding with an adhesive, heating a plastic part to soften it, and pushing a spring. However, the invention is not limited to any particular method. The fact that the distal end portion of the extension spring has a shape that can be locked to the locking portion means that the shape is suitable for the locking method as in the above-described example. The distal end of the spring means near the tip of the spring (in the assembled state, toward the distal end of the cylindrical body), and does not indicate only the distal end surface or the exact distal end of the spring. The same applies to the rear end of the spring.

Further, the pull spring rear end is provided with a large diameter portion, the cartridge cylinder, by the end face of the large-diameter portion comes into contact,該径majority is moving the cylindrical body distal direction There is provided a spring rear end locking surface for locking so that there is no spring, and the core chuck is provided with a spring locking projection for locking the leading end of the tension spring. According to this aspect, the tension spring can be securely and easily locked between the cylindrical body and the core chuck. Note that other methods may be used for the shape of the tension spring and the method of engagement with the core chuck / tubular body. For example, the shape and the engagement method of the extension spring, such as the aforementioned Japanese Utility Model Publication No. 3-31232, may be applied to the present invention.

[0026]

FIG. 1 is a sectional view showing a cartridge of a stick-shaped decorative material feeding container according to a reference of the present invention. The cartridge does not have a return for urging mechanism of the stick type cosmetic material 5 and the core chuck 21, a so-called one-way type of cartridge, the cartridge in this embodiment, 2 parts of the tubular body 11 and a core chuck 21 Consists of Outside the core chuck 21, two vent pieces 41 protrude outward like left and right like wings. The lower end of the vent piece 41
In particular, the contact portion 43 protrudes outward, and the chuck
It comes into contact with the surface of the chuck stopper 51 of the cartridge cylinder 11, which is a stopper portion, to determine the retraction limit of the core chuck. Note that the chuck stopper portion referred to in the present invention is
A generic term for chuck stoppers of various shapes.

The chuck stopper 51 of the cartridge cylinder 11 shown in FIG. 1 is a lower end surface of a mere rectangular hole 53 formed in the cylinder 11. The contact portion 43 of the bend piece 41 has such a size that the bend piece 41 enters the hole 53 when the bend piece 41 is in a natural shape protruding outward. When the lead chuck 21 is pushed up by the push rod 7 and rises (extended), the bend piece 41 bends inward, and the contact portion 43 is pulled inward and rises away from the hole 53. In addition, bend piece 4
1 is a storage groove 55 cut in the vertical direction in the cylindrical body 11.
Is housed inside. The shape of the contact portion 43 of the bend piece 41 is such that the upper outer side has a slope shape, and is easily pushed by the lower end of the bottom of the storage groove 55 of the cylindrical body 11 to be narrowed. On the other hand, the lower end of the contact portion 43 has a slightly acute angle, so that even when the lower end of the contact portion 43 comes into contact with the chuck stopper 51, it does not easily contract inward.

The cavity 23 of the core chuck 21 (the rod-shaped decorative material 5
The outer periphery of (where the rear end is inserted) is a cylindrical outer surface 45 having a smooth cylindrical surface. The outer surface 45 of the cylinder is
Slides smoothly through the inner hole of In addition, the bend piece 41 always pushes the bottom of the storage groove 55 so as to extend both right and left. Further, an appropriate sliding resistance is given between the core chuck and the inner surface of the cartridge cylinder 11 by the O-ring 9 fitted in the O-ring groove 49 on the outer periphery of the lower part of the core chuck 21. Therefore, the lead chuck 21 does not jerky when it moves in the cylindrical body 11. When the drawn-out bar-shaped decorative material 5 is retracted, the tip of the rod-shaped decorative material 5 is pushed in with a finger or the like and retracted.

FIG. 2 is a view showing a cartridge of a stick-shaped cosmetic material feeding container according to one embodiment of the present invention. (A) is a sectional view, and (B) is a side view. FIG. 3 is a view showing a core chuck incorporated in the cartridge of FIG. FIG.
FIG. 3A is a sectional view of the same section as FIG.
3B is a cross-sectional view of a cross section that intersects FIG. 3A at 90 °, and FIG. 3C is a bottom view. The cartridge according to the present embodiment includes three components: a cylindrical body 11, a core chuck 21, and a tension spring 31. The features of the cartridge of this embodiment are as follows.
A tension spring 31 for urging the core chuck 21 in the retreating direction is provided, and the chuck stopper 16 is
7 has a bend structure.

The chuck stopper 16 of the cartridge 1 of FIG. 2 is formed similarly to the chuck stopper 316 of the cartridge of the reference invention of FIG. That is, as shown in FIG. 2 (B), a U-shaped notch slit 18 is formed in the side surface of the cylindrical body 11 to form a tongue-shaped bend structure.
A formed chuck stopper 16 is formed. As shown in FIG. 2A, the inside of the upper portion of the chuck stopper 16 is an inner projection 17 slightly projecting inward. Contact part 4 of bend piece 41 of lead chuck 21
3 projects elastically into the upper part 18a of the slit 18. Therefore, the amount of interference between the contact portion 43 and the chuck stopper inner projection 17 depends on the overhang dimension of the contact portion 43,
This is the sum of the inwardly protruding dimensions of the chuck stopper inner protruding portion 17 and can be larger than the overhang amount of the core chuck bend piece 41 alone. Therefore, the lead-out of the lead chuck can be more reliably prevented.

The tension spring 3 of the cartridge 1 of the embodiment shown in FIG.
1 is a coil spring. The spring rear end 35 at the lower end of the extension spring 31 has a large diameter, and is in contact with the spring rear end locking surface 19 at the lower portion of the inner surface of the cartridge cylinder 11.
For this reason, the spring rear end 35 is locked so as not to move in the direction of the distal end of the cylindrical body 11. The spring tip portion 33 on the upper portion of the tension spring 31 is hooked on the spring engagement projection 28 of the spring tip engagement portion 27 below the core chuck 21 and is connected to the core chuck 21.

The detailed shape of the lead chuck shown in FIG. 3 will be described. The inner hole in the upper part of the core chuck 21 is a cavity 23 into which the tail end of the stick-shaped decorative material is inserted. A core chuck slit 29 and a rib 25 are formed in the cavity 23. Its role is the same as that described for the cartridge of the reference example in FIG. The outer surface 45 of the core chuck cylinder outside the cavity 23 slides smoothly on the inner hole surface of the cylinder 11.

A bend piece 41 projects outward from the lower end of the outer surface 45 of the core chuck cylinder. The lower part of the bend piece 41 hangs down like a cantilever, and is easily bent outward and inward. The lower end portion of the bend piece 41 is a contact portion 43 that projects further outward. The shape and role of the contact portion 43 are as described above. The method of forming the bend piece 41 of the lead chuck 21 of this embodiment is by injection molding using a split mold and core pins in a posture as shown in a plan view of FIG.

The lower half of the core chuck 21 is formed in a cylindrical shape, and the outer surface of the cylindrical portion serves as a spring tip locking portion 27. The spring tip locking portion 27 has a configuration in which two spring locking projections 28 and 28 ′ are projected from a cylindrical surface having a diameter substantially equal to (slightly smaller than) the inner diameter of the extension spring 31 (coil spring). The cross-sectional shape of the spring locking projection 28 is shown in FIG.
As shown in (B), the triangle has a shape protruding upward from below. The upper surface of the spring locking projection 28 is substantially upright from the surface of the spring tip locking portion 27. Also,
The two spring locking projections 28 and 28 ′ are
7 are arranged on the outer surface at 180 °, with a step h above and below. When viewed from the bottom surface of the core chuck, the spring locking projection 28 has an arc shape as shown in FIG. 3C.

A method of attaching the extension spring to the core chuck 21 shown in FIG. 3 will be described. First, the distal end (upper part) of the extension spring 31 is slightly pushed into the outer surface of the spring distal end locking portion 27 from the lower end of the spring distal end locking portion 27 of the core chuck 21. At this time, since the lower end of the spring tip locking portion 27 is tapered, the spring is easily inserted. Next, while turning the tension spring 31 in the direction of the positive screw (the core chuck 21 may be turned), the spring wire at the tip of the tension spring 31 is
8 '(lower position). Then, the spring wire advances over the spring locking projection 28. Further, this operation is continued, and the spring wire advances over the spring locking projection 28. In this way, as shown in FIG. 2A, the core chuck 21 and the tension spring 31 are assembled.

The step h between the upper spring engaging projection 28 and the lower spring engaging projection 28 'is preferably 1/2 to 2 times the spring pitch, and is preferably provided in accordance with the winding direction of the spring.
This is because it is easy to assemble while turning the spring. Also, since the spring wire is located between the spring locking projections 28 and 28 ',
The spring wire and the locking projection do not overlap (the spring wire is positioned so as to ride on the outer surface of the projection). Therefore, the spring fits perfectly with the outer diameter of the core chuck, and the movement of the core chuck in the cartridge cylinder becomes smoother.

In the cartridge of the embodiment shown in FIGS. 2 and 3, as described above, the assembly of the core chuck 21 and the extension spring 31 is configured such that the spring rear end locking surface 1
9, and toward the rear end of the cylindrical body 11,
The chuck stopper 16 prevents the stopper from coming off. Therefore, even when the cartridge is detached from the container main body, the lead chuck and extension spring assembly does not come out of the cartridge. At this time, by appropriately selecting the length of the tension spring, that is, the free dimension of the tension spring is set to a slightly shorter dimension than that shown in the assembled state at the retraction limit of the core chuck 2A. By doing so, the tension spring can be kept in tension even when the core chuck is at the retreat limit. The effect of doing so is as described above.

A rib-shaped inner ridge 57 is provided on the inner surface of the rear end of the cartridge cylinder 11 of this embodiment. The inner ridge 57 is engaged with the synchronous engagement rib 415 on the outer surface of the female screw member 411 on the container body 400 side shown in FIG. Note that the inside / outside relationship of the synchronous engagement may be opposite to that of the present embodiment. Further, the shape of the portion is not limited to the rib, and any shape may be used as long as it functions as a detent, such as a protrusion, a combination of a non-circular male and female. Further, in the container main body of FIG.
The relationship with 1 may be reversed, that is, the cartridge may engage with the detent member. As another modification of the type, a detent structure in which detent engaging portions are provided at the rear end of the lead chuck and the tip of the push rod may be used.

Further, an annular concave portion 59 is provided below the inner surface ridge 57. This annular concave portion 59 engages with the projection 427 and the annular convex portion on the container body side shown in FIG.
Plays the role of retaining the cartridge. In addition, the lower end of the cylindrical body 11 corresponding to the outside of the annular concave portion 59 is tapered. The role of this taper is as follows. That is, when the above-mentioned annular concave portion engages with a projection or the like of the container main body, the lower end of the cylindrical body slightly expands, but this expansion releases the lower end of the cylindrical body so as not to interfere with the inner surface of the container main body. .

FIG. 4 is a sectional view of the container body of the stick-shaped cosmetic material feeding container to which the cartridge of FIG. 2 is mounted. (A)
Indicates a state in which the push rod is at the retreat limit, and (B) indicates a state in which the push rod is at the forward limit. The container body 400 shown in FIG.
01, container inner cylinder 431, female thread 411, push rod 441,
The sponge chip 457 and the cap 459 are configured. The outer cylinder 401 is cylindrical, and the container body 40
0 covers the outer periphery of the upper middle part. The inner cylinder 431 has a hollow cylindrical shape, and a tip portion (upper portion) serves as a rotation preventing portion 421 having a reduced diameter. The outer surface of the rotation preventing portion 421 is a connecting portion of the cartridge, and has a circular projection 427 protruding therefrom. Here, the annular concave portion 59 at the rear end of the cartridge cylinder in FIG.
00 is linked.

On the inner surface of the detent part 421, detent grooves 423 are cut in four rows so as to extend in the axial direction. The detent groove 423 engages with a group of protrusions 445 arranged linearly in the axial direction on the outer surface of the push rod 441, and the inner cylinder 431 is formed.
And the push rod 441 rotate synchronously so as to be freely rinsing in the axial direction. Since the outer cylinder 401 and the inner cylinder 431 are fixed (press-fit, bonded, etc.), the outer cylinder 401 and the push rod 441 eventually rotate synchronously.

The female screw member 411 has a cylindrical shape.
A spiral groove 413 is cut into two on the inner hole surface of the female screw member 411. The number of spiral grooves may be one or more.
A group of projections 445 on the outer surface of the push rod 441 are screwed into the spiral groove 413, and both form a mechanism similar to the combination of the female screw and the male screw. On the outer surface of the female screw member 411,
Eight synchronous engaging ribs 415 extending in the vertical direction are cut off. When the cartridge is mounted on the container main body, the rib 415 is provided with the inner ridge 57 at the lower portion of the cartridge cylinder 11 .
As shown in FIG. 2, the cartridge cylinder is engaged with the female cylinder and rotates synchronously with the female screw member.

A group of projections 445 are provided on the outer surface of the push rod 441 of this embodiment. When viewed in the circumferential direction, the protrusions 445 are arranged in four rows at 90 ° distribution with a certain pitch. Among them, two rows opposed by 180 ° are aligned at the same axial position (height). These projections include, for example, a projection 445-1, a projection 445-
When viewed as 2, projections 445-3, {─}, the push rods 441 are spirally arranged on the outer peripheral surface, and the leads thereof are twice the pitch of the upper and lower projection rows. The projections arranged in a spiral form act as threads. Each part of the rod-shaped decorative material feeding container of the present embodiment is a plastic injection molded product. Material is ABS
(Acrylonitrile butadiene-styrene), POM
(Polyoxymethylene) and the like.

A pressing spring 451 is incorporated in the container body 400 of the embodiment shown in FIG. The pressing spring 451 is provided between the upper end surface of the base flange 449 of the pressing rod 441 and the inner tube 431 of the container.
The push rod is housed between the inner surface of the inner step 433 and the end face of the inner hole 433 so as to surround the push rod. Since the push spring 451 is provided, when the cartridge is removed from the container body and the rotation of the female screw member 411 becomes free, the push rod automatically returns straight (without rotation) from the extended position to the last retracted position. for that reason,
When the cartridge is replaced, the push rod is always at the rearmost position, so that the stick-shaped cosmetic material is not carelessly fed out when a new cartridge is mounted, and damage to the stick-shaped decorative material can be prevented. In addition, since the push rod and the container cylinder do not rotate relatively during the auto return, no torsional force acts on the push spring 451, so that a smoother movement can be obtained.

In this embodiment, the last retreat position of the push rod 441 is determined by the retaining ring 4 fitted on the tip of the push rod.
The lower end surface of 10 is determined by contacting the upper end surface of female screw member 411. The retaining ring 410 has a C-shaped cross section in which a part of a cylindrical ring is cut out. The retaining ring 410 is fitted in a ring groove 443 cut out on the outer periphery of the push rod 441 with a C-shaped notch widened. As shown in FIG. 4B, the retaining ring 410 is fed out into the cartridge cylinder at the tip of the push rod. Push rod retreats, retaining ring 4
When the lower end surface of the 10 comes into contact with the upper end surface of the female screw member 411 , the push rod cannot be further retracted. Due to such a structure, at the rear end (lower end) of the container inner tube 431,
There is no need to attach a tail plug. In addition, at the rear end of this ward,
A brush or a brush can be attached, and the stick-shaped cosmetic material feeding container can be used as a cosmetic tool in various modes. In the embodiment of FIG. 4, a sponge chip 457 held by a chip holder 455 is attached. The chip 457 is covered with a cap 459.

An O-ring 426 is mounted in an O-ring groove 425 formed in a ring shape on the outer surface of the rotation preventing portion 421 on the upper part of the container inner cylinder 431. The role of the O-ring is to provide a constant rotational resistance between the cartridge cylinder 11 (FIG. 2) and the container inner cylinder 431. If there is no rotation resistance, the urging force of the pulling spring 31 and the pressing spring 451 of the cartridge causes the pressing rod 441, the female screw member 411, and the cartridge cylinder 481 to rotate as one body, and the pressing rod naturally moves to the last retreat position. You will be back. Note that the cartridge cylinder 11 and the container tube 431, circular projection 4 of the annular recess and the container inner cylinder 431 of the cartridge cylinder
At 27, the rod-shaped decorative material supported by the chuck can be prevented from being damaged because it is locked so as not to be displaced in the axial direction.

In a further preferred embodiment of the present invention,
A detent part is provided at the rear end of the core chuck, and this detent part engages with the detent part at the tip of the push rod to provide the detent of the push rod. According to this aspect, the rotation can be stopped without using any other parts only by performing required work on the push rod and the core chuck. Therefore, the number of parts can be reduced. The detent may be provided anywhere on the inner surface, outer surface, or end surface of the rear end of the cylindrical body. Also,
The shape of the detent is also ribs, grooves, protrusions, triangles, squares,
It may be a star or the like.

The core chuck according to the present invention broadly refers to the entire holding member capable of holding the rear end of the rod-shaped decorative material and extending and retracting the material. In addition, as in "providing the chuck stopper in the cylindrical body", "providing" such as "providing A in B" or "providing A in B"
In the case where A and B are integrated with each other, this also broadly includes the case where A is formed separately from B and the separate body is assembled with B.

Regarding the "contact between the chuck stopper portion and the core chuck bend piece", both may be in direct contact, or some member or component may be present between the two to indirectly contact. . It should be noted that such a relationship between components (possibility of an intermediate component) also applies to another relationship between other components in this specification.

[0050]

As is apparent from the above description, the cartridge for a stick-shaped cosmetic material feeding container of the present invention exhibits the following effects. In the first and second inventions, the cart of the present invention is used.
The ridge is auto-aligned like the cartridge of the embodiment of FIG.
Composed of 3 parts even if it has a return spring
Can be a conventional tail plug or other wick chuck
Alternatively, no means for preventing the extension spring from falling off is required. for that reason
Manufacturing and assembly costs can be reduced, and cartridges
After removing the lead from the container body,
You can keep the tension spring biasing
So that the core chuck is in the axial and radial direction of the cartridge cylinder.
Since shaking is further reduced,
Damage to the supported stick-shaped decorative material can be prevented.

In the third invention, the chuck stopper portion
The bend structure and the chuck stopper
-The interference dimension of the part is large and a more secure locking method
be able to. In the fourth invention, the storage groove on the inner surface of the cylinder is provided.
By engaging the bend pieces, the center chuck cart
By preventing rotation inside the ridge cylinder, a stick-shaped decorative material
Can be prevented from scratching and twisting of the pull spring can be prevented.
You. In the fifth invention, the spring chuck is provided on the core chuck.
It is provided so that the pull spring does not move in the tip
There is a spring rear end locking part that locks the
Insert into the cylinder with the pull spring combined with the jack
And the rear end of the pull spring automatically
Because it is locked, assembly can be simplified
You.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a cartridge of a stick-shaped cosmetic material feeding container according to a reference of the present invention.

FIG. 2 is a view showing a cartridge of a stick-shaped cosmetic material feeding container according to one embodiment of the present invention. (A) is a sectional view, (B)
Is a side view.

FIG. 3 is a view showing a core chuck incorporated in the cartridge of FIG. 2; 3A is a cross-sectional view in the same cross section as FIG. 2A, FIG. 3B is a cross-sectional view in a cross section that intersects FIG. 3A at 90 °, and FIG. 3C is a bottom view.

4 is a cross-sectional view of a container main body of a stick-shaped cosmetic material feeding container to which the cartridge of FIG. 2 is mounted. (A) shows a state where the push rod is at the limit of retreat, and (B) shows a state where the push rod is at the limit of forward movement.

FIG. 5 is a sectional view showing a cartridge described in Japanese Patent Application No. 5-208163.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cartridge 3 Container main body 5 Rod-shaped cosmetic material 7 Push rod 9 0 Ring 11 Cylindrical body 13 Tip opening 14 Rear end opening 15 Step 16 Chuck stopper 17 Inner projection 18 Slit 18a Slit upper part 19 Spring rear end locking surface 21 Core chuck 23 cavity Part 25 Rib 26 Core chuck rear end face 27 Spring tip locking part 28 Spring locking projection 29 Core chuck slit 31 Pull spring 33 Spring tip 35 Spring rear end 37 Spring intermediate part 41 Bend piece 43 Contact part 45 Cylindrical outer surface 49 O-ring groove 51 Chuck stopper 53 Hole 55 Storage groove 57 Inner ridge 59 Annular recess 400 Container body 401 Outer cylinder 403 Tip opening 410 Retaining ring 411 Female thread member 413 Spiral groove 415 Synchronous engagement rib 421 Detent locking part 423 Detent locking groove 425 0 ring groove 426 0 ring 427 Circular protrusion 431 Inner cylinder 433 Inner step 435 Flange 437 Rear end extension 441 Push rod 443 Ring groove 445 Projection 446 Flat part 449 Base flange 451 Push spring 455 Tip holder 457 Sponge tip 459 Cap

Claims (5)

(57) [Claims] 1. A container having a push rod which can be extended in the axial direction.
It is detachably attached to the tip of the body and responds to the movement of the push rod.
Bar-shaped cosmetic material dispensing volume that can be used to unwind bar-shaped cosmetic materials
Container cartridge, The cartridge is shaped like a rod that moves by being pushed by the push rod.
A core chuck supporting a cosmetic material and sliding on the core chuck
A cylinder that can be stored freely, and the core chuck is the rear end of the cylinder
And a tension spring biasing in the direction, The cylindrical body has a chuck that defines the retraction limit of the core chuck.
A stopper is provided, In the retraction limit, the chuck is
Provide a bend piece that engages with the stopper, Remove the cartridge from the container body
When the lead chuck is located at the retreat limit,
It is possible to keep the tension spring tensioned
Cartridge for stick-shaped cosmetic material feeding container. 2. The chuck stopper according to claim 1, wherein the chuck stopper is formed in the cylindrical body.
It consists of an inner protrusion that protrudes from the surface, Insert the core chuck from the rear end of the cylinder and combine
Bend pieces of the above-mentioned core chuck
Passing through the protruding part protruding from the inner surface of the cylindrical body
After passing, the bend piece will spring back
Then, by engaging with the inner protruding portion,
2. The rod according to claim 1, wherein a retraction limit is set.
Cartridge for a container for feeding cosmetics. 3. The chuck stopper has an inner projection.
2. A bend structure according to claim 1, wherein
Cartridge for stick-shaped cosmetic material feeding container. 4. A method according to claim 1, wherein said bend piece is an outer surface of said core chuck cylinder.
From the outside of the cylinder This bend on the inside
The storage groove with which the piece engages is provided so as to extend in the axial direction.
As a result, the core chuck cannot rotate with respect to the cylinder.
And slidable in the axial direction.
A cartridge for the stick-shaped cosmetic material feeding container according to claim 3. 5. A tip of a tension spring is engaged with the core chuck.
A spring tip locking part is provided to stop
The large diameter portion provided at the rear end of the spring is the rear end of the spring of the cylindrical body.
It is characterized in that it abuts on the locking surface and locks the pull spring.
The stick-shaped cosmetic material feeding container according to any one of claims 1 to 4.
Cartridges.