阅读说明：本技术 送出筒、送出容器、及送出筒与被送出构件的组装方法 (Delivery tube, delivery container, and method for assembling delivery tube and delivered member ) 是由 尾花敬和 于 2018-09-06 设计创作，主要内容包括：一种送出筒(5),其由树脂构成,并且能够与被送出构件(3)卡合,所述送出筒(5)具备半圆筒形状的一组分割体(50A、50B),其中,当将上述一组分割体(50A、50B)彼此组装时,形成有使上述被送出构件(3)一边旋转一边移动的卡合部(51)。(A delivery cylinder (5) is made of resin and can be engaged with a delivered member (3), and the delivery cylinder (5) is provided with a pair of split bodies (50A, 50B) having a semi-cylindrical shape, wherein when the pair of split bodies (50A, 50B) are assembled with each other, an engagement portion (51) for moving the delivered member (3) while rotating is formed.)

1. A delivery cylinder which is made of resin and can be engaged with a delivered member, the delivery cylinder comprising:

a group of split bodies in the shape of a semi-cylinder,

wherein, when the pair of split bodies are assembled, an engaging part is formed for moving the member to be sent while rotating.

2. The feed-out cartridge of claim 1,

the engaging portion is a groove formed in the inner peripheral surface of the semi-cylindrical shape so as to form a spiral groove that is continuous in the circumferential direction when the pair of divided bodies are assembled with each other,

a projection for engagement is provided on the rear end side in the axial direction of the member to be fed.

3. The feed-out cartridge of claim 2,

the pitch of the spiral grooves formed on the pair of divided bodies on the front end side in the axial direction of the semi-cylindrical shape is different from the pitch of the spiral grooves on the rear end side in the axial direction.

4. The feed out cartridge of claim 2 or 3,

in the semi-cylindrical shape of the pair of divided bodies, an undercut portion is provided at a tip end portion with respect to an advancing direction of the fed member.

5. The feed-out cartridge of claim 1,

the engaging portion is a plurality of engaging projections provided on the inner peripheral surface of the semi-cylindrical shape and provided on a front end side in a traveling direction for pushing out the member to be fed,

the member to be fed has a spiral groove formed on an outer peripheral surface of a shaft portion extending in the axial direction.

6. The feed-out drum according to any one of claims 1 to 5,

a positioning part is respectively arranged at one end of each of the set of divided bodies in the circumferential direction,

when the pair of divided bodies are assembled, the positioning portions of the divided bodies are fitted to each other.

7. The dispensing cartridge of claim 6, having:

a hinge portion integrally formed with the pair of divided bodies, the hinge portion having circumferentially other ends of the pair of divided bodies adjacent substantially in parallel and connecting the other ends to each other,

rotating at least one of the set of divided bodies with the hinge portion as a center to fold and assemble the set of divided bodies.

8. The feed-out drum according to any one of claims 1 to 5,

positioning parts are respectively arranged at two circumferential ends of each of the divided bodies of the group of divided bodies,

the set of divided bodies is constructed independently,

when the pair of divided bodies are connected, the positioning portions at both ends in the circumferential direction of each divided body are fitted to each other.

9. The feed-out drum according to any one of claims 1 to 8,

in the semi-cylindrical shape of the pair of divided bodies, an undercut portion is provided at a rear end portion with respect to an advancing direction of the fed member.

10. A dispensing container, comprising:

the feed-out drum of any one of claims 1-9; and

a member to be fed that is engaged with the feed cylinder and moves while rotating relative to the feed cylinder,

wherein a holding cylinder for holding the rod-shaped body is provided on the tip end side of the fed member.

11. The dispensing container of claim 10,

the stick-shaped body is a solid or semisolid cosmetic.

12. A method for assembling a feed cylinder and a member to be fed, the feed cylinder being made of resin, the method comprising the steps of:

a step of forming a half-cylindrical split body set having a groove formed therein so as to form a spiral groove continuous in the circumferential direction when assembled, by injecting a resin into a mold having a cavity; and

and an assembling step of assembling the pair of divided bodies into a cylindrical shape while holding the member to be fed between the pair of divided bodies.

Technical Field

The present invention relates to a dispensing tube, a dispensing container provided with the dispensing tube, and a method of assembling the dispensing tube and a dispensing member.

Background

It is known that: in a cosmetic dispensing container for dispensing a stick-shaped cosmetic such as lipstick, in order to prevent the drop of the content due to the impact, a pitch of a spiral groove on an inner peripheral side is narrowed in a nut-shaped cylindrical dispensing member at a portion engaged when a rear end portion of the content is pushed out to the end (for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1 Japanese patent laid-open No. 2008-36372

Disclosure of Invention

Problems to be solved by the invention

However, since the core of the mold as the central portion cannot be removed from the resin cylinder portion in general injection molding in order to mold the delivery cylinder portion with a varied pitch as described in patent document 1, for example, it is necessary to form a groove by digging the resin from the central side, which complicates the process and reduces productivity.

In the case of molding a nut with resin by general injection molding, if it is considered to remove the core in the central portion, the pitch cannot be changed.

In the structure for obtaining the screw, both end portions cannot be formed into a bag-like undercut (undercut) structure.

In view of the above circumstances, an object of the present invention is to provide a resin dispensing tube that can be molded using a mold and can improve the degree of freedom of the shape on the inner peripheral surface side.

Means for solving the problems

In order to solve the above problem, one aspect of the present invention provides a delivery member (5),

which is made of resin and can be engaged with a member (3) to be fed,

the delivery member (5) has a pair of semicircular divided bodies (50A, 50B),

wherein, when the pair of split bodies are assembled, an engagement part for moving the fed member (3) while rotating is formed.

ADVANTAGEOUS EFFECTS OF INVENTION

According to one aspect, the resin discharge tube can be molded using a mold, and the degree of freedom of the shape on the inner peripheral surface side can be increased.

Drawings

Fig. 1 is an overall side view and an overall side sectional view of a dispensing container and a cover according to embodiment 1 of the present invention.

Fig. 2 is an exploded view of the dispensing container of fig. 1.

Fig. 3 is a perspective view showing the stick holder and the feed cylinder according to embodiment 1.

Fig. 4 is an explanatory view of the dispensing cartridge according to embodiment 1.

Fig. 5 is a perspective view of the dispensing cylinder according to embodiment 1.

Fig. 6 is a perspective view showing the joint, the feed cylinder, and the housing according to embodiment 1.

Fig. 7 is an explanatory diagram of a state in which the feed cylinder according to embodiment 1 is opened.

Fig. 8 is a perspective view of the feed cylinder according to embodiment 1 in an opened state.

Fig. 9 is an explanatory view showing a process of assembling the feed cylinder according to embodiment 1 by folding it while sandwiching the rod holder.

Fig. 10 is a diagram showing an example of assembly to a feed cylinder while rotating a rod holder as a comparative example.

Fig. 11 is a view for explaining a process of assembling the feed cylinder according to modification 1 by connecting the rod holders while clamping them.

Fig. 12 is a view of the dispensing cartridge according to modification 2 being opened.

Fig. 13 is a left front view and a right front view according to modification 2.

Fig. 14 is a view of the dispensing cylinder according to modification 3 being opened.

Fig. 15 is a perspective view showing the stick holder and the feed cylinder according to embodiment 2.

Fig. 16 is an explanatory diagram of a state in which the feed cylinder according to embodiment 2 is opened.

Detailed Description

The present embodiment will be described below with reference to the drawings. In the following description, the same components are denoted by the same reference numerals in the drawings, and redundant description thereof may be omitted.

The present invention relates to a dispensing container including a dispensing tube and a dispensing member, and a method of assembling the dispensing tube and the dispensing member.

Here, the stick-shaped body that can be stored and delivered by the delivery container of the present invention may include stick-shaped cosmetics and stick-shaped materials other than cosmetics.

The stick cosmetic may be, for example, a lipstick, a lip balm, a concealer, an eye shadow stick, a foundation stick, a stick-like cosmetic liquid, a stick-like moisturizer, or the like.

The stick-like material other than the cosmetic material may be, for example, a stick-like solid perfume, a stick-like antiperspirant, a stick-like sunscreen, a stick-like drug, a stick-like insecticide, a stick-like solid lotion, a glue stick, a stick adhesive, an eraser, a lipstick-like toy, or the like.

The rod-shaped body may contain a material having a viscosity of a predetermined value or more and capable of maintaining a predetermined shape, for example, a viscoelastic material, in addition to a solid body formed into a predetermined shape.

Further, the rod-shaped body may be formed by previously attaching a product molded into a rod shape to the rod holder, or by filling a supplementary space formed by the inner peripheral surface of the holding cylinder of the rod holder and the upper surface of the dish part with a material as described later.

Hereinafter, the stick-shaped body will be described as an example of the stick-shaped cosmetic L.

< integral construction >

Fig. 1 is an overall view of a dispensing container 10 according to an embodiment of the present invention. Fig. 2 is an exploded view of the dispensing container 10 according to embodiment 1. Fig. 1(a) is an overall side view, and (b) is a side sectional view of the dispensing container 10 and the cover 7 of fig. 1(a) taken along a section AA.

The overall configuration of the dispensing container 10 will be described with reference to fig. 1 and 2.

The dispensing container 10 includes a casing 1, a sleeve 2, a stick holder 3, a joint 4, a dispensing tube 5, and an O-ring (O-ring)6, and accommodates the stick-shaped cosmetic L. A cover 7 is detachably attached to a joint portion 4 of a dispensing container 10 as a casing 1 assembly.

The housing 1, the sleeve 2, the joint 4, and the cover 7 are made of resin such as ABS (acrylonitrile butadiene styrene). The rod holder 3 is made of resin such as PBT (polybutylene terephthalate). The feed cylinder 5 is made of resin such as POM (polyacetal). The O-ring 6 is made of an elastic material such as NBR (nitrile rubber).

The housing 1 is an outer cylinder (also referred to as a body or a shaft) of the dispensing container 10, and is formed in a cylindrical shape or a polygonal cylindrical shape, for example.

The sleeve 2 has a smaller diameter than the housing 1 and is formed by being punched out toward the front end side of the housing 1. The sleeve 2 is rotatable relative to the casing 1, and the rod-shaped cosmetic L moves forward and backward in the axial direction (the left-right direction in fig. 1) relative to the casing 1 by rotating the sleeve 2 relative to the casing 1. The sleeve 2 is a support tube that restricts rotation of the rod holder 3 and supports the rod holder to be slidable, and may be a sliding tube portion.

The stick holder 3 is a holder for stick-shaped cosmetic (also referred to as a lipstick holder or a clip), and the tip is attached with the stick-shaped cosmetic L.

The joint portion 4 is a connecting portion for fixing the housing 1 and the sleeve 2. The sleeve 2 is slidably fixed to the joint portion 4. An O-ring 6 is fixed to the rear end side of the sleeve 2. By sandwiching the O-ring 6 between the sleeve 2 and the joint portion 4, the sliding resistance between the sleeve 2 and the joint portion 4 during sliding can be adjusted, and sealing can be ensured as needed.

The feed cylinder 5 is a middle cylinder portion housed in the housing 1 as an outer cylinder portion, and functions as a rotary cylinder, i.e., a feed member, for moving the rod holder 3 in the axial direction by rotating relative to the rod holder 3.

Referring to fig. 2, first, the rod holder 3 is movably attached to the feed cylinder 5.

Specifically, in the present embodiment, the feed cylinder 5 is in the shape of a nut having a spiral groove therein, as shown in fig. 8 and 9 described later, and is folded and attached in a state where the rear end portion of the rod holder 3 is gripped.

Also, the feed cylinder 5 to which the rod holder 3 is attached is assembled into the housing 1.

On the other hand, the sleeve 2 is assembled to the joint portion 4.

Then, the joint portion 4 to which the socket 2 is assembled is attached to the housing 1 in which the stick holder 3 and the dispensing tube 5 are assembled, thereby completing the assembly of the dispensing container 10.

After the dispensing container 10 is assembled, the solid cosmetic is inserted from the distal end side of the sleeve 2 (left side in fig. 1) into the inner periphery of the holding cylinder 31 and the inner side of the sleeve 2, and then loaded.

Alternatively, the cosmetic material of the fluid body may be injected from the distal end side (left side in fig. 1) of the sleeve 2 into the inner circumference of the holding cylinder 31 and the inner side of the sleeve 2 and filled. The cosmetic material that can be filled by pouring is a fluid that can be deformed by setting the ambient temperature high during filling, and is a semisolid substance that is easily applied to the skin using vaseline, beeswax, or the like as a base and does not drip. Further, the container may be slightly modified from the front end side, and the cosmetic may be filled from the rear end side. By filling the fluid, the cosmetic existing in the space surrounded by the inner side of the holding cylinder (chuck) 31 at the front end of the stick holder 3 and the upper surface of the dish part 33 becomes the joining part Ls as the held part having a small diameter at the rear end of the solidified stick cosmetic L. In this manner, the cap 7 is detachably attached to the dispensing container 10 filled by insertion or filling.

< rod support and delivery barrel >

Fig. 3 is an exploded perspective view showing the stick holder 3 and the feed cylinder 5 according to embodiment 1. The stick holder 3 includes a holding cylinder 31, a dish part 33, and a pushing cylinder 34.

The holding cylinder 31 is provided at the tip end side of the stick holder 3 and holds the side surface of the stick cosmetic L. The dish portion 33 holds the bottom surface of the stick-shaped cosmetic L in the holding tube 31. The pushing cylinder 34 is a cylindrical member extending in a rod shape. The rear end of the outer periphery of the holding cylinder 31 is provided with an outer rotation restricting portion 312.

A breakable connection portion between the dish portion 33 and the holding tube 31 is broken, and the lifting body (pushing body) 32 including the dish portion 33 enters the holding tube 31.

When the vertically movable body 32 enters the holding cylinder 31, a holding space for holding the stick cosmetic L surrounded by the inner periphery of the holding cylinder 31 and a bottom plate 33b (see fig. 1 b) which is the upper surface of the dish part 33 becomes small, and the engaging part Ls (see fig. 2) of the stick cosmetic L is pushed out from the holding space by the bottom plate 33 b. By the extrusion of the bottom plate 33b of the dish part 33, the joining part Ls on the rear end side of the stick-shaped cosmetic L is projected to the same position as or outside the front end of the casing 2, whereby the stick-shaped cosmetic L can be used up to the end. Alternatively, in consideration of the fact that the stick-shaped cosmetic is dropped, the bottom plate 33b of the dish part 33 may be configured to be depressed by about 1mm to 2mm from the tip of the casing 2.

Further, the outer periphery of the push cylinder 34 of the stick holder 3 is provided with a holder-side engaging projection 341 that engages with a part of the inner periphery of the feed cylinder 5.

The holder-side engaging projection 341 of the feed cylinder 34 of the rod holder 3 is a plurality of projections that engage with a spiral groove (spiral groove) 51 as an engaging portion (engaging groove) of the feed cylinder 5 and project at substantially right angles to the outer surface.

In the present embodiment, the delivery cylinder 5 is a substantially cylindrical nut member having a spiral groove 51 formed in the inner circumferential surface of the cylinder portion. In this configuration, the relationship between the holder-side engaging projection 341 and the spiral groove 51 of the dispensing tube 5 is the relationship between a part of the thread of the bolt and the groove of the nut.

Further, the outer periphery of the delivery cylinder 5 is provided with a hinge portion 52 and a regulating portion 55. The restricting portion 55 has an axial position restricting portion 551, a rear end side rotation restricting portion 552, and a front end side rotation restricting portion 553.

The detailed structure of the feed cylinder 5 will be described below with reference to fig. 4 to 9.

< dispensing cartridge >

Fig. 4 is an explanatory view of the dispensing tube 5 according to embodiment 1. In fig. 4, when viewed from the state of fig. 1(a), (a) is a left front view, (b) is a top view, (c) is a side view, (d) is a bottom view, and (e) is a right front view. Fig. 5 is a perspective view of the feed cylinder 5.

Specifically, fig. 4(a) is a left front view of the axial front end APE of the feed cylinder 5, and fig. 4(e) is a right front view of the axial rear end ATE of the feed cylinder 5.

These dispensing containers 10 are described in detail together with fig. 7, but are configured by folding the divided bodies 50A, 50B on both divided bodies that are divided by the dividing line so as to be in a semi-cylindrical shape.

As shown in fig. 4(a) to 4(e) and 5(a), an axial position regulating portion 551 having a shape that stands at right angles to the axial direction and lacks a part of a flange extending in the circumferential direction is provided on the outer peripheral surface of the feed cylinder 5; and a hinge portion 52 extending in the axial direction at a portion where the axial position restricting portion 551 is not provided. The hinge portion 52 is formed so as to extend outward along the dividing line dl.

As shown in fig. 4(a), 4(B), and 5(B), positioning portions 53A and 53B are provided which are formed so as to rise from the outer peripheral surface of the feed cylinder 5 along the distal end side of the axial position restricting portion 551 and extend outward along the dividing line dl. The positioning portions 53A and 53B are used when folding the feed cylinder 5.

As shown in fig. 4(a) to 4(d), 5(a) and 5(b), a distal end side rotation restricting portion 553 is provided on the outer peripheral surface of the feed cylinder 5 so as to extend in the axial direction on the distal end side at a substantially right angle to the axial position restricting portion 551. In this example, an example is shown in which 2 or 4 tip-side rotation restricting portions 553 are provided for each of the divided bodies 50A, 50B, but the number of the members is not particularly limited as long as at least 1 member is provided for each of the divided bodies 50A, 50B.

As shown in fig. 4(b) to 4(e), 5(a) and 5(b), a rear end side rotation restricting portion 552 extending in the axial direction on the rear end side at a substantially right angle to the axial position restricting portion 551 is provided on the outer peripheral surface of the feed cylinder 5. In this example, an example is shown in which 2 to 4 rear-end-side rotation restricting portions 552 are provided for each of the divided bodies 50A and 50B, but the number of the rear-end-side rotation restricting portions 552 is not limited to a few number as long as at least 1 is provided for each of the divided bodies 50A and 50B.

Further, referring to fig. 4(e) and 5(B), rear end side pockets 54A and 54B, which are inward protruding protrusions, that is, undercuts, are provided at the rear end ATE in the axial direction of the feed cylinder. For example, in this example, the rear end side pockets 54A and 54B are formed in a ring shape having the same width so as to protrude from the inner peripheral surface of the tooth portion having the groove formed on the inner surface of the spiral groove 51, but the rear end side undercut portion may have another shape protruding from the inner peripheral surface along the center side, for example, 1 or more protrusions, an intermittent ring shape, or the like.

The rear end side pockets 54A and 54B as the rear end side undercut portions serve as rear end side escape prevention pins, and prevent the rod holder 3 from excessively advancing to the rear end side and breaking the bottom portion of the housing 1 when the rod holder 3 is rotationally moved inside the feed cylinder 5.

Engagement of feed-out cylinder, housing, joint part

Fig. 6 is an exploded perspective view of the feed cylinder 5, the housing 1, and the joint 4 according to embodiment 1.

As shown in fig. 6, a plurality of linear protrusions 11 standing on the center side and extending in the axial direction are arranged in the circumferential direction on the inner periphery of the housing 1. Further, a front-end-side inner peripheral portion 12 where the linear protrusion 11 is not provided is formed on the front-end-side inner periphery of the housing 1. The casing 1 is provided with a circumferential engaging annular projection 13 on the most front end side.

The feed cylinder 5 is provided with an axial position restricting portion 551, a rear end rotation restricting portion 552, and a front end rotation restricting portion 553 as the restricting portion 55. The rear end side rotation restricting portion 552 is a rotation preventing tool that prevents rotation with respect to the housing 1.

As shown in fig. 2, when the dispensing tube 5 is attached to the inside of the housing 1, the rear end side rotation restricting portion 552 of the dispensing tube 5 and the hinge portion 52 are fitted into the linear protrusion 11 of the housing 1.

By this fitting, the rotation of the dispensing cylinder 5 with respect to the housing 1 is suppressed, and when the sleeve 2 is rotated with respect to the housing 1 or the sleeve 2 is rotated with respect to the housing 1, the dispensing cylinder 5 and the housing 1 can be rotated integrally.

The axial position restricting portion 551 of the feed cylinder 5 abuts against the end of the linear projection 11 of the housing 1 extending in the circumferential direction on the distal end side.

The distal-end rotation restricting portion 553 engages with the inner circumference of the joint portion 4. This restricts the rotation of the feed cylinder 5 within the housing 1 and also suppresses the opening of the feed cylinder 5.

The joint portion 4 is provided with a flange-like partition projection 41 and a case engaging projection 42.

The housing engaging projection 42, which is a flange at the small end of the joint 4, is fixed by fitting the joint 4 to the housing 1 by sandwiching the engaging annular projection 13 at the front end side of the housing 1.

At this time, the rear end of the joint 4 is fixed to the front end of the housing 1, and the axial position restricting portion 551, which is the flange of the feed cylinder 5, is sandwiched between the upper end of the linear protrusion 11 of the housing 1 and the rear end of the joint 4, thereby fixing the position in the housing 1. This regulates the position of the feed cylinder 5 in the axial direction with respect to the housing 1.

The rear end b of the engagement projection 341 of the rod holder 3 is held by the feed cylinder 5 formed of a divided body, and the rod holder 3 is rotatably attached to the feed cylinder 5 and the housing 1.

As shown in fig. 2, the sleeve 2 is rotatably attached to the joint portion 4 on the distal end side of the joint portion 4. On the other hand, the rear end side of the joint portion 4 is fitted to the housing 1 so as not to be rotatable.

Therefore, when the housing 1 is rotated with respect to the sleeve 2 or when the sleeve 2 is rotated with respect to the housing 1, the joint portion 4 is fixed to the housing 1 side without being rotated together with the sleeve 2.

< Prior Art Assembly of dispensing Cartridge

Fig. 7 is a 6-plane view showing a state where the feed cylinder 5 according to embodiment 1 is opened. In fig. 7, when viewed from the state of fig. 1(a), (a) is a left front view, (b) is a left side view, (c) is a top view, (d) is a right side view, (e) is a bottom view, and (f) is a right front view. Fig. 8 is a perspective view of the feed cylinder 5 according to embodiment 1 in an opened state.

In the present embodiment, as shown in fig. 7 and 8, the delivery cylinder 5 is configured by a pair of half-cylindrical divided bodies 50A and 50B.

In the present embodiment, as shown in fig. 7(c) and 8, in each of the divided bodies 50A and 50B of the delivery cylinder 5, a groove 51A or 51B is formed on the inner circumferential surface of the semi-cylindrical shape so as to form a spiral groove that is continuous in the circumferential direction when a pair of divided bodies are assembled to each other.

The positioning portions 53A and 53B are provided at one ends CE1A and CE1B, which are distal end portions in the circumferential direction of the respective split bodies of the pair of split bodies 50A and 50B, respectively, and the pair of positioning portions 53A and 53B are fitted to each other when the pair of split bodies 50A and 50B are assembled.

Specifically, as shown in fig. 7(a) and (c), the positioning portion 53A has an extending portion 531 extending outward along the dividing line dl and a projection 532 projecting in the upper direction (circumferential direction). On the other hand, the positioning portion 53B has an extending portion 533 extending outward along the dividing line dl and a hole portion 534 penetrating the extending portion 533 in the vertical direction (circumferential direction). The projections 532 of the positioning portion 53A are fitted into the holes 534 of the positioning portion 53B, and the divided bodies 50A, 50B are positioned. In contrast to the configuration example shown in fig. 7, the projection 532 for positioning may be provided on the divided body 50B, and the hole 534 may be provided on the divided body 50A.

Further, the dispensing tube 5 has a hinge portion 52 formed integrally with the pair of divided bodies 50A and 50B, in which the other ends CE2A and CE2B, which are the proximal ends in the circumferential direction of the pair of divided bodies 50A and 50B, are adjacent to each other substantially in parallel, and the other ends CE2A and CE2B in the circumferential direction are connected to each other.

As shown in fig. 7(a) and (f), the hinge portion 52 is continuously provided with an extending portion extending outward along a dividing line dl of the divided bodies 50A and 50B, and as shown in fig. 7(c), a folding groove fg extending in the axial direction is formed at the center.

In the present embodiment, as shown in fig. 7 and 8, the groove pitch (screw lead) GP1 of the axial front-end side spiral groove 511 and the groove pitch (screw lead) GP2 of the axial rear-end side spiral groove 512, which are formed in the pair of split bodies 50A and 50B and have a semi-cylindrical shape, are different from each other.

Of the spiral grooves 51 formed in the pair of divided bodies, the spiral grooves 511 on the front end side in the axial direction of the semi-cylindrical shape have a smaller pitch than the spiral grooves 512 on the rear end side, which are the other portions. Specifically, the portion corresponding to the length of the holding cylinder 31 of the rod holder 3 from the front end has a narrower pitch than the rear end side spiral groove 512, which is the other portion.

In the present embodiment, the pitch of the front-end side spiral groove 511 and the rear-end side spiral groove 512 in the spiral groove 51 formed in the feed cylinder 5 is made different, so that the advancing speed of the rod holder 3 at the time of the feed operation is made different. This enables the breakage of the connecting portion 35 of the stick holder 3 and the fine adjustment of the pushed-out amount of the joint portion Ls of the stick cosmetic L.

Fig. 9 is an explanatory view showing a process of assembling the feed cylinder 5 according to embodiment 1 by folding while holding the rod holder 3.

Fig. 9(a) is a diagram showing a state of the feed cylinder 5 before assembly. The divided bodies 50A and 50B are molded by injecting resin into a mold having a cavity, which is a general method for manufacturing resin products, and the mold surrounding the periphery is opened and taken out. For example, the feed cylinder 5 in fig. 9(a) is made of resin such as POM and PBT.

In the opened state of fig. 9(a), the clamping rod holder 3 is formed into a cylindrical shape as shown in fig. 9(c) by rotating at least one of the pair of divided bodies 50A, 50B to fold the pair of divided bodies, with the folding groove fg of the hinge portion 52 as a rotation axis, as shown in fig. 9 (B).

FIG. 9(b)In the case of the cylindrical shape in fig. 9(c), the divided body is folded by folding a folding groove fg extending in the axial direction formed at the center of the hinge portion 52 extending in a band shape as a folding line. Therefore, if the accuracy of the folding grooves fg formed in the hinge portion 52 is improved, the folded position is less likely to shift when the divided bodies are assembled into a cylindrical shape.

Further, FIG. 9(b)When the tube is formed in fig. 9(c), the positioning projection 532 is fitted into the positioning hole 534Thereby, alignment is performed. By this positioning, the spiral groove 51 is not displaced on the inner periphery of the delivery tube 5 folded in a tubular shape, and the groove can be continuously formed.

In this way, by connecting the divided bodies with the hinge portion and rotating the hinge portion as a center and positioning the divided bodies by positioning, the divided bodies can be precisely and finely molded into the delivery cylinder even if the central core (mold) and the outer peripheral mold are not integrally molded into a cylindrical shape.

< comparative example >

Here, fig. 10 shows an example of a comparative example in which a rod holder is assembled to a feed cylinder while being rotated.

In assembling the general feed cylinder and the stick holder shown in fig. 10, the stick holder 3X is rotated and screwed with respect to the feed cylinder 5X in order to engage the spiral groove 51X, which is the nut portion of the integrally formed feed cylinder 5X, with the engagement protrusion 341X, which is the bolt portion of the stick holder 3X. At this time, the position of the engaging projection 341X in the rod holder 3X is moved from the front end side to the rear end side in the axial direction of the feed cylinder 5X by the rotational movement, and reaches the rear end portion of the storage position before use (the position at the time of shipment) shown in fig. 1 (b).

In contrast, in the present invention, when the rod holder 3 is held by the split bodies 50A and 50B, the position of the engaging projection 341 of the rod holder 3 as a bolt with respect to the feed cylinder 5 as a nut can be freely determined. Therefore, as shown in fig. 9(b), the position of the rod holder 3 in the feed cylinder 5 can be set directly at the storage position before use at the time of shipment. Therefore, in the assembling step, the movement in the axial direction for storing the rod holder 3 in the feed cylinder 5 is not necessary.

In this way, in the assembly process using the split body according to the present invention, the rotational movement for the axial movement at the time of assembly of the rod holder 3X and the feed cylinder 5X as shown in fig. 10 is not necessary, and productivity can be greatly improved.

< modification 1 >

In the above embodiment, the examples are shown in which the divided bodies 50A and 50B are integrated by the hinge portion 52, but the divided bodies constituting the delivery cylinder 5A may be separate bodies without being integrated.

Fig. 11 is a diagram illustrating a process of connecting and assembling the feed-out cylinder 5A according to modification 1 while clamping the rod holder.

As shown in fig. 11(a), for example, positioning portions (53C, 53D) (56C, 56D) are provided at both circumferential ends CE1C, CE1D of each of the divided bodies 50C, 50D of the pair of divided bodies.

Specifically, the positioning portions 53C and 53D are provided at one ends CE1C and CE1D of distal end portions in the circumferential direction of the respective divided bodies 50D and 50D as a set of divided bodies, as in embodiment 1. Further, the positioning portions 56C, 56D are provided at the other ends CE2C, CE2D of the proximal end portions in the circumferential direction of the respective divided bodies 50C, 50D as a set of divided bodies.

As shown in fig. 11(a) and 11(C), the positioning portions 53C and 56D include protrusions 532 and 562 protruding from extending portions 531 and 561 extending outward from the dividing line dl, and the positioning portions 53D and 56C include hole portions 534 and 564 penetrating in the vertical direction in the extending portions 533 and 563.

In the opened state of fig. 11(a), the rod holder 3 is provided on the lower divided body 50D, and as shown in fig. 11(b), the upper divided body 50C is covered, and the projections 532 and 562 of the positioning portions 53 and 56 are engaged with the holes 534 and 564, respectively, so that the rod holder is assembled into a tubular shape while being positioned as shown in fig. 11 (C).

At this time, by fitting the projections 532 and 562 of the positioning portions 53C, 56D, 53D, and 56C into the holes 534 and 564, respectively, the grooves can be continuously formed without shifting the spiral groove 51 on the inner periphery of the delivery cylinder 5A connected in a cylindrical shape.

By forming the split bodies as another structure and performing alignment and connection, even if the core (mold) at the center and the mold at the outer peripheral side are not integrally molded into a cylindrical shape, if the accuracy of alignment is improved, the split bodies can be precisely molded into the delivery cylinder.

Here, if the accuracy of the installation position of the positioning portion is improved, when the divided bodies are assembled into a cylindrical shape, the assembled position is difficult to be deviated.

Therefore, in the present modification and the above-described embodiment 1, the example in which the pair of positioning portions are provided in the axial direction on the one end side and the other end side in the circumferential direction, respectively, has been described, but 2 or more pairs of positioning portions may be provided in the axial direction. In this example, the positioning portions 53C and 53D on the one end side in the circumferential direction and the positioning portions 56C and 56D on the other end side in the circumferential direction are provided at the same position in the axial direction, but may be provided at different positions.

Alternatively, the hole and the projection used for the pair of positioning portions may be formed long in the axial direction. For example, the engagement portion may be configured to be long in the axial direction by providing an extending portion over the entire axial region of the end portion so that all the circumferential end portions serve as positioning portions, and forming a plate-like projection extending in the axial direction and a long hole extending in the axial direction in the extending portion.

By providing 2 or more pairs of positioning portions in the axial direction or extending the projections and holes in the axial direction, the positioning accuracy can be improved by further positioning.

Further, in the axial direction of the end portion on the other end side, which is the proximal end in the circumferential direction, in addition to the hinge portion 52 of embodiment 1, a positioning portion may be further provided in a portion where the hinge portion 52 is not provided.

In the above embodiment and modification 1, as shown in fig. 3, the engagement portion (spiral groove) of the feed cylinder 5 has been described as a shape suitable for cutting the connection portion of the rod holder 3 and feeding the engagement portion Ls, but the rod holder engageable with the feed cylinder shown in the present embodiment is not limited to the shape shown in fig. 3. That is, the engaging end of the feed cylinder, i.e., the fed member, which is formed of the split body made of resin and has the spiral groove on the inner periphery thereof, may be shaped without assuming that the connecting portion of the rod holder is broken.

The spiral groove of the delivery cylinder engageable with the rod holder 3 shown in fig. 3 is not limited to the shape shown in fig. 7(c) and 8.

< modification 2 >

Fig. 12 is a diagram of the dispensing tube 5B according to modification 2.

In this modification, the spiral grooves 513(513E, 513F) formed in the inner circumferential surfaces of the split bodies 50E, 50F of the delivery cylinder 5B have the same pitch. Fig. 12 shows an example of the same pitch, and the pitch width may be wider or narrower.

The split bodies 50E and 50F having the spiral groove 513 configured as described above in the opened state also pass through the state shown in fig. 13 to be in fig. 9(b)Fig. 9(c) is folded and positioned, thereby forming the feed-out bobbin 5B.

Here, even in the case of the nut configuration having uniform spiral grooves like the delivery cylinder 5B shown in fig. 12, it can be formed by pulling out the core from the center of the cylinder portion. However, by using the divided bodies, the assembly can be performed by the clamping as shown in fig. 9 without the need for the rotational movement for the assembly of the rod holder and the feed cylinder as shown in fig. 10, and therefore, a significant improvement in productivity can be expected.

Fig. 13 is a (a) left front view and (b) right front view of a configuration having both side undercuts in the feed cylinder of modification 2.

In the dispensing tube of the present modification, a bag-like undercut portion shape may be provided even on the tip end side. For example, the distal-side pockets 57E and 57F serve as distal-side anti-slip pins, and therefore the rod holder 3 does not fall from the feed cylinder 5B even when rotated. Even with the structure having the spiral grooves uniformly, as shown in fig. 13, when both end sides have the undercut portions, the core cannot be pulled out from the center of the tube portion.

Even if the undercut portions protruding toward the inner peripheral side are provided on both the front end side and the rear end side, the delivery cylinder is formed by the split body, and therefore, the core is not pulled out from the center of the cylinder portion, and thus, the mold surrounding the periphery can be used for molding. Therefore, in the dispensing tube of the present invention, even if the bag portions are provided at both ends in the axial direction, the divided body is molded by using a general mold, so that high productivity is ensured and the assembling property is good by the hinge portion and the positioning.

In the feed cylinder 5 of embodiment 1, an example is shown in which only the rear end side is provided with a bag-shaped undercut, but in the feed cylinder 5 having a spiral shape shown in fig. 7(c) and 8, the front end side may be provided with a bag-shaped undercut as shown in fig. 13. In this case, the distal-end-side pocket portion serves as a distal-end-side anti-slip pin, and therefore, even if the rod holder is rotated, the rod holder does not fall from the feed cylinder.

< modification 3 >

Fig. 14 is a view of opening the delivery cylinder 5C according to modification 3.

In this modification, the spiral grooves 514(514G, 514H) formed in the inner peripheral surface of the dispensing tube 5C are changed in stages. Fig. 14 shows an example of a shape in which the pitch width of the spiral grooves on the rear end side is narrow and the pitch width gradually increases as it advances to the front end side, but may be a shape in which the pitch width of the spiral grooves on the rear end side is wide and the pitch width gradually decreases as it advances to the front end side.

The split bodies 50G and 50H having the spiral groove 514 configured as described above in the opened state also pass through the state shown in fig. 14 to be in fig. 9(b)Fig. 9(C) is folded and positioned, thereby forming the feed-out bobbin 5C.

Further, the spiral groove formed on the inner circumference of the dispensing tube of the present invention may be divided into 3 or more sections. Alternatively, the spiral groove may have an inner peripheral surface that is formed only in a part of the front end side or the rear end side of the feed cylinder in the axial direction and that is not engraved with the spiral groove in the inner periphery of the feed cylinder.

The split bodies having the spiral grooves shown in modification examples 2 and 3 may be configured by positioning and combining split bodies configured as separate bodies as shown in modification example 1 of fig. 10. Alternatively, in the split bodies having the spiral grooves shown in modification 2 and modification 3, as shown in fig. 13(a) and (b), the undercut portions may be provided on both sides in the axial direction.

In this way, by configuring the feed cylinder with the split body made of resin, it is not necessary to remove the core as the central portion of the mold from the center of the cylinder portion, and therefore the shape of the spiral groove as the engagement portion formed on the inner circumferential portion can be freely set.

Therefore, the dispensing tube (dispensing member) composed of the split body of the present invention can improve the degree of freedom of the shape of the inner tube surface side with accuracy while maintaining productivity, as compared with a dispensing tube integrally molded through an injection process using a mold and a core on the outer peripheral side.

< embodiment 2 >

Next, a rod holder and a feed cylinder according to embodiment 2 of the present invention will be described. Fig. 15 is a perspective view showing the rod holder 3 α and the feed cylinder 5 α according to embodiment 2.

In the present embodiment, as the holder-side engaging portion of the rod holder 3 α, a spiral screw groove (spiral groove) 38 is formed on the outer peripheral surface of the pushing cylinder (shaft portion) 37 of the elevating body 36, and the rod holder 3 α has a bolt shape.

On the other hand, the feed cylinder 5 α is provided with an engagement projection (feed-side engagement projection, engagement portion) 58 on the distal end side of the inner peripheral surface.

In the present embodiment, the holding cylinder 31 and the dish portion 33 have the same configuration as that of fig. 3, and the dish portion 33 and the pushing cylinder 37 function as the elevating body 36 that can enter the holding cylinder 31.

In the present embodiment, the rod holder 3 α is not added with a member, and is generally integrally formed as a single member in use, so that an additional member for final extrusion is not required. Therefore, the joining portion of the stick-shaped cosmetic can be used until the end of use without making a tool in the slender dispensing container which is made slender or dirtying the hand.

The engaging projection 58 provided on the inner peripheral surface of the feed cylinder 5 α engages with the spiral groove 38 of the feed cylinder 37 of the rod holder 3 α. As with the engaging projections 341 of the feed cylinder 34 of embodiment 1, in the present embodiment, in order to stably rotate and move the rod holder 3 α, 2 or more engaging projections 58 of the feed cylinder 5 α are provided as shown in fig. 16 described later.

In the present embodiment, the relationship between the engaging projection 58 of the feed cylinder 5 α and the spiral groove 38 of the feed cylinder 37 of the rod holder 3 α is the relationship between a part of the nut teeth and the bolt groove.

Further, a regulating portion 55 for regulating the position by preventing the rotation of the feed cylinder 5 α with respect to the housing 1 is provided on the outer peripheral surface of the feed cylinder 5 α. The shapes of the axial position restricting portion 551, the rear end side rotation restricting portion 552, and the front end side rotation restricting portion 553 are the same as those of embodiment 1.

As shown in fig. 15, among the spiral grooves 38 as the spiral screw grooves formed in the pushing cylinder 37 of the rod holder 3 α, the pitch of the spiral groove 381 on the rear end side is narrower than the pitch of the spiral groove 382 on the front end side. Specifically, on the rear end side, the pitch of the portion corresponding to the length of the holding cylinder 31 of the rod holder 3 α is narrower than that of the tip side spiral groove 382 which is the other portion.

In the present embodiment, when the rod holder 3 α is in the rear end side and in the accommodated state shown in fig. 15, the engaging projection 58 provided in the vicinity of the front end portion of the feed cylinder 5 α engages with the spiral groove 382 on the front end side in the forward direction of the push cylinder 37. On the other hand, when the joining portion Ls of the stick cosmetic L held by the stick holder 3 α is pushed out to the end, the engaging projection 58 of the feed cylinder 5 α engages with the spiral groove 381 on the rear end side of the push cylinder 37.

In the present embodiment, the breakage of the connecting portion 35 of the stick holder 3 and the squeezing out of the engaging portion Ls of the stick cosmetic L in the present invention can be effectively realized while the advancing speed is changed by the configuration of the spiral groove of the pushing cylinder 37 of the stick holder 3 α.

Fig. 16 is an explanatory diagram of a state in which the feed cylinder 5 α according to embodiment 2 is opened. In fig. 16, (a) is a left front view, (b) is a left side view, (c) is a top view, (d) is a right side view, (e) is a bottom view, and (f) is a right front view, as viewed from the state of fig. 15.

As shown in fig. 16, the split bodies 50I and 50J constituting the delivery cylinder 5 α are provided with engaging projections 58(58I and 58J) on the inner peripheral portions on the distal end side.

In the dispensing tube 5 α, the hinge portion 52 connecting the split bodies 50I and 50J, the positioning portions 53I and 53J used for positioning at the time of folding, and the regulating portion 55 provided on the outer peripheral surfaces of the split bodies 50I and 50J and engaging with the housing 1 and the joint portion 4 have the same shape and function as those of embodiment 1.

Further, the rear end side is provided with rear end side pockets 54I and 54J in the form of pockets as undercut portions, as in embodiment 1.

However, in the present configuration, the distal-side pocket portion 54 is not provided on the distal end side of the feed cylinder 5 α so as not to hinder the rotation of the bolt-shaped rod holder 3 α. However, assuming that the convex engaging protrusions 58(58I, 58J) are once entirely cylindrical on the inner side provided at the distal end, when molding is performed using a mold on the outer peripheral side and a core at the center, the portions become undercut when the core is removed.

In the present embodiment, as described in modification 1, the divided bodies may be formed as separate bodies, and the divided bodies formed of the separate bodies may be positioned and combined.

In this configuration, by performing the positioning by positioning, even if the core (mold) at the center and the mold at the outer peripheral side are not integrally molded into a cylindrical shape, if the positioning accuracy is improved, the core can be precisely and finely molded into the delivery cylinder.

In the present embodiment, an example in which a pair of positioning portions are provided in the axial direction is described, but 2 or more pairs of positioning portions may be provided in the axial direction. By providing 2 or more positioning portions, the accuracy can be further improved.

In embodiment 2 of fig. 15 to 16, the description has been given of a shape suitable for pressing when the capsule portion enters the holding cylinder by changing the pitch of the pushing cylinder on the rod holder side, but the shape of the spiral groove 38 of the rod holder 3 engageable with the delivery cylinder 5 α shown in fig. 16 is not limited to the shape shown in fig. 15. That is, the member to be fed, which is a split body made of resin and has an engagement end of the feed cylinder having an engagement projection at a distal end portion thereof, may be shaped without assuming that the connection portion of the rod holder is broken.

For example, the spiral groove formed on the outer periphery of the push cylinder portion of the rod holder may have a pitch width that is the same in the axial direction as the spiral shape of the push cylinder shown in fig. 12 and 14, or may be varied in stages. The spiral groove of the further pushing cylinder can be divided into more than 3 sections.

In the present embodiment, the example in which 2 engaging projections 58 are provided on the periphery of the distal end portion of the delivery cylinder is shown, but the number of engaging projections may be 3 or more. The engaging projection 58 as the engaging portion is an example of a shape having a diagonal width, and the shape may be a stepped shape or a columnar projection (Porch) shape.

In the present embodiment, the configuration of the engaging protrusions formed on the inner peripheral portion can be freely set because the core does not need to be removed by forming the feed cylinder from the split resin bodies.

Further, since the core is not removed from the center of the tube portion by forming the feed tube as the split body, even when the protrusion is provided on the front end side and the undercut portions are provided on both sides so that the bag portion is provided on the rear end side, the tube can be molded by using a mold surrounding the periphery. Therefore, in the dispensing tube of the present invention, even if the inner peripheral side has the shape of the both-side undercut portion formed by the engaging projection and the pocket portion, since the divided body is molded by using a general mold, high productivity is ensured and the assembling property is good by the hinge portion and the positioning.

Therefore, the dispensing tube (dispensing member) composed of the split body of the present invention can improve the degree of freedom of the shape of the inner tube surface side with accuracy while maintaining productivity, as compared with a dispensing tube integrally molded by an injection process using a mold and a core on the outer circumferential side.

Although the preferred embodiments of the present invention have been described above in detail, the present invention is not limited to these specific embodiments, and various modifications and changes can be made within the scope of the embodiments of the present invention described in the claims.

Description of the symbols

1 casing (outer cylinder, axle cylinder)

2 casing pipe (middle tube)

3. 3 alpha bar support (sent out component)

4 joint part

41 separating projection

42 housing engaging projection

5. 5A, 5B, 5C, 5 alpha delivery cylinder (nut member, delivery member)

6O-shaped ring

7 cover

10. 10 alpha delivery container

11 linear projection

12 front end side inner peripheral part

13 annular projection for engagement

21 hollow part of approximately polygonal column (2 nd rotation limiting mechanism)

22 front end inner peripheral surface

23 peripheral connecting portion

31 holding cylinder

312 outer rotation restricting part

32. 36 lifting body

33 dish part

33b bottom plate

34. 37 pushing cylinder

35 connecting part

37 push cylinder (shaft)

38 helical groove

381 rear end side spiral groove

382 front end side spiral groove

341 side engaging projection of bracket (engaging projection)

50A, 50B, 50C, 50D, 50E, 50F, 50G, 50H, 50I, 50J segments

51 spiral groove (spiral groove, engaging part)

511 front end side spiral groove

512 rear end side spiral groove

513 spiral groove

514 helical groove

52 hinge part

53A, 53B, 53C, 53D, 53I, 53J positioning part

54A, 54B, 54I, 54J rear end side pocket portions (undercut portions)

55 restriction part

551 axial position restricting part

552 rear end side rotation restricting part

553 front end side rotation restricting part

56C, 56D positioning parts

57E, 57F front end side pocket parts (undercut parts)

58(58I, 58J) sending side engaging projection (engaging projection, engaging portion)

L-stick cosmetic

Difference of S height

One end (distal end) of CE1A, CE1B in the circumferential direction

CE2A, CE2B circumferential other end (proximal end)

Front end of APE axial direction

The rear end of the ATE in the axial direction.