Delivery tube, delivery container, and assembly method of delivery tube and delivered member

Abstract

A delivery cylinder (5) is composed of resin and is capable of engaging with a delivery member (3), the delivery cylinder (5) having a set of divided bodies (50A, 50B) of a semicircular cylindrical shape, wherein when the set of divided bodies (50A, 50B) are assembled to each other, an engagement portion (51) is formed which moves while rotating the delivery member (3).

Description

Technical Field

[0001] The present invention relates to a delivery cylinder, a delivery container having a delivery cylinder, and a method for assembling the delivery cylinder and the delivered component. Background Technology

[0002] It is known that in order to prevent the contents from falling out of the cosmetic dispensing container of stick cosmetics such as lipstick, the spacing of the spiral grooves on the inner circumference of the nut-shaped cylindrical dispensing member is narrowed for the part that is locked when the rear end of the contents is squeezed out to the end (for example, Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2008-36372 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, as described in Patent Document 1, in order to mold the delivery cylinder with a changed spacing using resin, in general injection molding, the core of the mold used as the central part cannot be removed from the resin cylinder. Therefore, for example, it is necessary to form a groove by excavating the resin from the center side, which is a complicated process and reduces productivity.

[0008] Furthermore, when molding nuts using resin through conventional injection molding, the spacing cannot be changed if the central core is to be removed.

[0009] Furthermore, in the structure for obtaining the screw, the two ends cannot be made into a bag-shaped undercut structure.

[0010] Therefore, in view of the above circumstances, the object of the present invention is to provide a resin-made delivery cylinder that can be molded using a mold and can improve the degree of freedom of the shape of the inner circumferential surface.

[0011] Methods for solving problems

[0012] To address the aforementioned issues, one aspect of the present invention provides a delivery component (5).

[0013] It is made of resin and can engage with the ejected component (3).

[0014] The delivery component (5) has a set of semi-cylindrical segments (50A, 50B).

[0015] When the above-mentioned set of segments are assembled together, a locking part is formed that allows the above-mentioned ejected member (3) to rotate and move at the same time.

[0016] The effects of the invention

[0017] According to one method, for resin-made delivery cylinders, molding can be used to increase the freedom of shape of the inner circumferential surface. Attached Figure Description

[0018] Figure 1 This is an overall side view and an overall side cross-sectional view of the delivery container and cover according to the first embodiment of the present invention.

[0019] Figure 2 for Figure 1 An exploded view of the delivery container.

[0020] Figure 3 This is a perspective view showing the rod support and delivery tube according to the first embodiment.

[0021] Figure 4 This is an explanatory diagram of the delivery tube according to the first embodiment.

[0022] Figure 5 This is a perspective view of the delivery tube according to the first embodiment.

[0023] Figure 6 This is a perspective view showing the connector, delivery cylinder, and housing according to the first embodiment.

[0024] Figure 7 An explanatory diagram showing the state of the delivery tube according to the first embodiment.

[0025] Figure 8 A perspective view showing the state of the delivery tube according to the first embodiment.

[0026] Figure 9 This is an explanatory diagram illustrating the assembly process of folding the delivery tube according to the first embodiment while clamping the rod support.

[0027] Figure 10 The diagram illustrates an example of assembling the rod support into the delivery cylinder while rotating it, as a comparative example.

[0028] Figure 11 The diagram illustrates the assembly process of connecting the feed tube, which is involved in the first modified example, to the rod support while clamping it.

[0029] Figure 12 The diagram of the delivery tube involved in the second variation is now open.

[0030] Figure 13The left and right front views are involved in the second variation.

[0031] Figure 14 The diagram of the delivery tube involved in the third variation is now open.

[0032] Figure 15 This is a perspective view showing the rod support and delivery tube according to the second embodiment.

[0033] Figure 16 An explanatory diagram showing the state of the delivery tube according to the second embodiment. Detailed Implementation

[0034] Hereinafter, this specific embodiment will be described with reference to the accompanying drawings. In the following drawings, the same components are marked with the same reference numerals, and sometimes repeated descriptions are omitted.

[0035] The present invention relates to a delivery container having a delivery cylinder and a delivery component, and a method for assembling the delivery cylinder and the delivery component.

[0036] Here, the delivery container of the present invention can contain the delivered rod-shaped object, and may include rod-shaped cosmetics and rod-shaped objects other than cosmetics.

[0037] The term "stick cosmetic" can refer to, for example, lipsticks, lip balms, concealers, eyeshadow sticks, foundation sticks, stick-shaped beauty serums, stick-shaped moisturizers, etc.

[0038] The term "stick-shaped object other than cosmetics" can refer to, for example, stick-shaped solid perfumes, stick-shaped antiperspirants, stick-shaped sunscreens, stick-shaped medicines, stick-shaped insecticides, stick-shaped solid detergents, glue sticks, stick adhesives, erasers, and toys that mimic lipsticks.

[0039] In addition to being solids formed into a specified shape, rods may also contain materials with a certain viscosity that can maintain the specified shape, such as viscoelastic materials.

[0040] Furthermore, the rod-shaped body can be pre-installed on the rod holder, or, as described later, the rod-shaped body can be formed by filling the supplementary space formed by the inner circumferential surface of the retaining tube of the rod holder and the upper surface of the dish portion with material.

[0041] The following explanation will use a rod-shaped cosmetic material L as an example.

[0042] <Overall Composition>

[0043] Figure 1 This is an overall view of the delivery container 10 according to an embodiment of the present invention. Figure 2 This is an exploded view of the delivery container 10 according to the first embodiment. Figure 1 (a) is an overall side view, (b) is a view of the entire structure. Figure 1 (a) Side cross-sectional view of the delivery container 10 and cover 7 cut along section AA.

[0044] Reference Figure 1 and Figure 2 The overall structure of the delivery container 10 will be explained.

[0045] The delivery container 10 includes a shell 1, a sleeve 2, a rod support 3, a connector 4, a delivery tube 5, and an O-ring 6, which houses the rod-shaped cosmetic material L. Furthermore, a cover 7 is detachably mounted on the connector 4 of the delivery container 10, which is an assembly of the shell 1.

[0046] The housing 1, sleeve 2, connector 4, and cover 7 are made of resins such as ABS (acrylonitrile-butadiene-styrene). The rod support 3 is made of resins such as PBT (polybutylene terephthalate). The delivery tube 5 is made of resins such as POM (polyacetal). The O-ring 6 is made of elastic raw materials such as NBR (nitrile butadiene rubber).

[0047] The shell 1 is the outer cylindrical part (also called the body or shaft) of the delivery container 10, for example, it is constructed in a cylindrical or polygonal shape.

[0048] The sleeve 2 has a smaller diameter than the housing 1 and is formed by punching out towards the front end relative to the housing 1. The sleeve 2 can rotate relative to the housing 1. By rotating the sleeve 2 relative to the housing 1, the rod-shaped cosmetic L moves axially relative to the housing 1. Figure 1 It can move forward and backward in the left and right directions. The sleeve 2 is used to limit the rotation of the rod support 3 to support the sliding support cylinder, or it can be a sliding cylinder part.

[0049] The stick holder 3 is a fixture for stick-shaped cosmetics (also known as a lipstick holder or clip), with a stick-shaped cosmetic L installed at the front end.

[0050] The connector 4 is a connecting part that fixes the housing 1 and the sleeve 2. The sleeve 2 is slidably fixed relative to the connector 4. An O-ring 6 is fixed to the rear end side of the sleeve 2. By clamping the O-ring 6 between the sleeve 2 and the connector 4, the sliding resistance between the sleeve 2 and the connector 4 during sliding can be adjusted, and a seal can be ensured as needed.

[0051] The delivery cylinder 5 is a middle cylinder housed in the outer cylinder of the shell 1. By rotating relative to the rod support 3, it functions as a rotating cylinder that moves the rod support 3 along the axial direction, i.e., a delivery component.

[0052] Reference Figure 2First, the rod support 3 can be movably installed in the delivery cylinder 5.

[0053] In detail, in this embodiment, the delivery cylinder 5 is as described below. Figure 8 , Figure 9 As shown, it is a nut-shaped device with internal spiral grooves, folded and installed at the rear end of the clamping rod bracket 3.

[0054] Furthermore, the delivery cylinder 5, which is equipped with the rod support 3, is assembled into the housing 1.

[0055] On the other hand, a sleeve 2 is assembled in the connector 4.

[0056] Then, the assembly of the delivery container 10 is completed by installing the connector 4, which is equipped with the sleeve 2, onto the housing 1, which is internally assembled with the rod support 3 and the delivery cylinder 5.

[0057] Furthermore, after assembling the delivery container 10, from the front end side of the sleeve 2 ( Figure 1 Solid cosmetic material is inserted into the inner circumference of the retaining cylinder 31 and the inner side of the sleeve 2 from the left side for filling.

[0058] Alternatively, it can be obtained from the front end side of sleeve 2 ( Figure 1 The cosmetic material is filled by injecting a fluid into the inner circumference of the retaining cylinder 31 and the inner side of the sleeve 2 from the left side. The cosmetic material that can be filled by injection refers to, for example, a fluid that can be deformed by setting the ambient temperature high during filling. It is in the form of a balm, and is easy to apply to the skin with petroleum jelly, beeswax, etc. as a base. It is a semi-solid substance that does not drip. In addition, the cosmetic material can be filled not only from the front side, but also from the rear side by slightly modifying the container. By filling the fluid, the cosmetic material in the space surrounded by the inner side of the retaining cylinder (clamp) 31 at the front end of the rod support 3 and the upper surface of the dish portion 33 becomes a solidified rod-shaped cosmetic material L. The smaller diameter part at the rear end is the retained part, i.e., the connecting part Ls. With this assembly, the cover 7 can be detachably installed on the delivery container 10, which is filled by insertion or injection.

[0059] <Stick support and delivery tube>

[0060] Figure 3 This is an exploded perspective view showing the rod support 3 and the delivery cylinder 5 according to the first embodiment. The rod support 3 includes a holding cylinder 31, a dish portion 33, and a pushing cylinder 34.

[0061] A retaining cylinder 31 is disposed at the front end of the rod support 3 to retain the side of the rod-shaped cosmetic material L. A dish portion 33 retains the bottom surface of the rod-shaped cosmetic material L in the retaining cylinder 31. The pusher cylinder 34 is a cylindrical component extending along the rod. An outer rotation limiting portion 312 is provided at the rear end of the outer periphery of the retaining cylinder 31.

[0062] The breakable connection between the dish portion 33 and the retaining cylinder 31 breaks, and the lifting body (push body) 32 containing the dish portion 33 enters the retaining cylinder 31.

[0063] If the lifting body 32 enters the interior of the retaining cylinder 31, it will be affected by the inner circumference of the retaining cylinder 31 and the bottom plate 33b, which serves as the upper surface of the dish portion 33 (see reference). Figure 1 (b)) The space surrounding the holding of the rod-shaped cosmetic material L becomes smaller, thereby allowing the connecting part Ls of the rod-shaped cosmetic material L (refer to) to pass through the base plate 33b. Figure 2 The material is extruded from the holding space. By utilizing the extrusion through the base plate 33b of the dish portion 33, the connecting portion Ls on the rear end side of the stick cosmetic L protrudes from the same position as or to the outside of the front end of the sleeve 2, thereby allowing the stick cosmetic L to be used until the very end. Alternatively, considering that the stick cosmetic may fall off, the structure can be configured such that the extrusion using the base plate 33b of the dish portion 33 stops at a recessed area approximately 1 mm to 2 mm from the front end of the sleeve 2.

[0064] In addition, the outer periphery of the rod support 3 and the push cylinder 34 is provided with a support-side engaging protrusion 341 that engages with a portion of the inner periphery of the delivery cylinder 5.

[0065] The rod support 3 and the push tube 34 support side engaging protrusion 341 are multiple protrusions that engage with the spiral groove (spiral groove) 51 of the engaging part (engaging groove) of the delivery tube 5 and protrude at approximately right angles relative to the outer surface.

[0066] In this embodiment, the delivery cylinder 5 is a generally cylindrical nut member with a spiral groove 51 formed on the inner circumferential surface of the cylinder portion. In this configuration, the relationship between the bracket-side engaging protrusion 341 and the spiral groove 51 of the delivery cylinder 5 is the same as that between a portion of the bolt's teeth and the nut's groove.

[0067] In addition, a hinge portion 52 and a limiting portion 55 are provided on the outer periphery of the delivery cylinder 5. The limiting portion 55 has an axial position limiting portion 551, a rear-end rotation limiting portion 552, and a front-end rotation limiting portion 553.

[0068] The detailed structure of the delivery tube 5 is described below. Figures 4-9 Please provide an explanation.

[0069] <Discharge tube>

[0070] Figure 4 This is an explanatory diagram of the delivery tube 5 according to the first embodiment. Figure 4 In the middle, by Figure 1 (a) State observation, (a) is the left front view, (b) is the top view, (c) is the side view, (d) is the bottom view, (e) is the right front view. Figure 5This is a three-dimensional view of the delivery tube 5.

[0071] In detail, Figure 4 (a) is a left front view of the front end APE side, which corresponds to the axial direction of the delivery cylinder 5. Figure 4 (e) is the right front view of the rear ATE side of the feed tube 5 in the axial direction.

[0072] These delivery containers 10 and Figure 7 They will be described in detail together, but they are constructed by folding the two parts 50A and 50B on the dividing line, which are divided into a semi-cylindrical shape.

[0073] like Figure 4 (a)~ Figure 4 (e) Figure 5 As shown in (a), an axial position limiting portion 551, which is erected at a right angle to the axial direction and is part of a flange that does not extend in the circumferential direction, is provided on the outer peripheral surface of the delivery cylinder 5; and a hinge portion 52, which extends axially in the portion where the axial position limiting portion 551 is not provided, is provided. The hinge portion 52 is formed in such a way that it extends outward along the dividing line dl.

[0074] like Figure 4 (a) and Figure 4 (b) Figure 5 As shown in (b), positioning portions 53A and 53B are provided, which extend outward from the outer peripheral surface of the delivery cylinder 5, such that the axial position limiting portion 551 stands upright along the front end side and extends outward along the dividing line dl. These positioning portions 53A and 53B are used when the delivery cylinder 5 is folded.

[0075] In addition, such as Figure 4 (a)~ Figure 4 (d) Figure 5 (a) Figure 5 As shown in (b), a front-end rotation limiting part 553 is provided on the outer peripheral surface of the delivery cylinder 5, extending axially at approximately right angle to the axial position limiting part 551 on the front end side. In this example, an example is shown where each segment 50A and 50B is provided with 2 or 4 front-end rotation limiting parts 553, but the number of parts is irrelevant as long as at least one is provided relative to each segment 50A and 50B.

[0076] like Figure 4 (b)~ Figure 4 (e) Figure 5 (a) Figure 5As shown in (b), a rear-end rotation limiting part 552 is provided on the outer peripheral surface of the delivery cylinder 5, which is approximately right-angled with the axial position limiting part 551 and extends axially along the rear end side. In this example, two or four rear-end rotation limiting parts 552 are provided for each segment 50A and 50B, but the number of parts is irrelevant as long as at least one is provided relative to each segment 50A and 50B.

[0077] In addition, refer to Figure 4 (e) Figure 5 (b) At the rear end ATE of the feed tube in the axial direction, there are protrusions that protrude inward, namely, rear end side pocket portions 54A and 54B as undercut portions. For example, in this example, the rear end side pocket portions 54A and 54B are shown to have a ring shape with the same width, in a way that the inner circumferential surface protrudes compared to the teeth of the groove on the inner surface of the spiral groove 51. However, the undercut portion on the rear end side can be other shapes that protrude along the central side relative to the inner circumferential surface, such as one or more protrusions, discontinuous ring shapes, etc.

[0078] The rear-side bag portions 54A and 54B, which are the bottom cut portions on the rear end side, serve as anti-detachment pins on the rear end side to prevent the rod support 3 from excessively traveling to the rear end side and damaging the bottom of the housing 1 when the rod support 3 rotates and moves inside the delivery cylinder 5.

[0079] <Engagement of the delivery tube, housing, and connector>

[0080] Figure 6 This is an exploded perspective view of the delivery cylinder 5, housing 1, and connector 4 according to the first embodiment.

[0081] like Figure 6 As shown, multiple linear protrusions 11, which stand upright on the central side and extend axially, are arranged circumferentially on the inner periphery of the housing 1. Furthermore, a front-side inner periphery portion 12 without the linear protrusions 11 is formed on the inner periphery of the front end side of the housing 1. A circumferentially engaging annular protrusion 13 is provided on the foremost front end side of the housing 1.

[0082] Furthermore, the delivery cylinder 5 includes an axial position limiting part 551, a rear-end rotation limiting part 552, and a front-end rotation limiting part 553 as limiting parts 55. The rear-end rotation limiting part 552 is an anti-rotation device that prevents rotation relative to the housing 1.

[0083] like Figure 2 As shown, when the delivery cylinder 5 is installed inside the housing 1, the rear end side rotation restriction part 552 and the hinge part 52 of the delivery cylinder 5 are embedded in the linear protrusion 11 of the housing 1.

[0084] Through this fitting, the rotation of the delivery cylinder 5 relative to the housing 1 is suppressed, and when the sleeve 2 is rotated relative to the housing 1, or when the sleeve 2 is rotated relative to the housing 1, the delivery cylinder 5 and the housing 1 can rotate together.

[0085] The axial position limiting part 551 of the delivery cylinder 5 abuts against the front end of the linear protrusion 11 of the housing 1 that extends circumferentially.

[0086] Furthermore, the front-end rotation limiting part 553 engages with the inner circumference of the connector part 4. This restricts rotation within the housing 1 of the delivery cylinder 5 while preventing the delivery cylinder 5 from opening.

[0087] The connector 4 is provided with a flange-shaped partition protrusion 41 and a housing engagement protrusion 42.

[0088] The housing engagement protrusion 42, which is the smaller end flange of the connector 4, engages with the housing 1 by clamping the engagement annular protrusion 13 on the front end side of the housing 1, thereby fixing the connector 4 relative to the housing 1.

[0089] At this time, the rear end of the connector 4 is fixed relative to the front end of the housing 1, and the axial position limiting part 551, which serves as the flange of the delivery cylinder 5, is clamped between the upper end of the linear protrusion 11 of the housing 1 and the rear end of the connector 4, thus fixing the position inside the housing 1. This restricts the axial position of the delivery cylinder 5 relative to the housing 1.

[0090] Furthermore, the rear end b of the engaging protrusion 341 of the rod support 3 is held by the delivery cylinder 5, which is composed of a split body, thereby allowing the rod support 3 to be rotatably mounted relative to the delivery cylinder 5 and the housing 1.

[0091] In addition, on the front end side of the connector 4, such as Figure 2 As shown, the sleeve 2 can be rotatably installed relative to the connector 4. On the other hand, the rear end of the connector 4 is fitted with the housing 1 in a non-rotatable manner.

[0092] Therefore, when the housing 1 is rotated relative to the sleeve 2, or when the sleeve 2 is rotated relative to the housing 1, the joint 4 does not rotate with the sleeve 2, but is fixed to the side of the housing 1.

[0093] <Diagram of the feed tube before assembly>

[0094] Figure 7 A six-view diagram showing the state in which the delivery tube 5 according to the first embodiment is opened. Figure 7 In the middle, by Figure 1 (a) State observation, (a) is the left front view, (b) is the left side view, (c) is the top view, (d) is the right side view, (e) is the bottom view, (f) is the right front view. Figure 8This is a perspective view showing the state of the delivery tube 5 according to the first embodiment.

[0095] In this embodiment, such as Figure 7 , Figure 8 As shown, the delivery cylinder 5 is composed of a set of semi-cylindrical segments 50A and 50B.

[0096] In this embodiment, such as Figure 7 (c) and Figure 8 As shown, in each of the segments 50A and 50B of the delivery cylinder 5, when a set of segments are assembled together, grooves 51A and 51B are formed on the inner circumferential surface of the semi-cylindrical shape in a manner that forms a continuous spiral groove in the circumferential direction.

[0097] Positioning parts 53A and 53B are respectively provided at one end CE1A and CE1B of the far end of each segment 50A and 50B in the circumferential direction. When assembling a set of segment 50A and 50B, a set of positioning parts 53A and 53B are fitted together.

[0098] In detail, such as Figure 7 As shown in (a) and (c), the positioning part 53A has an extension 531 extending outward along the dividing line dl and a protrusion 532 protruding in the upward (circumferential) direction. On the other hand, the positioning part 53B has an extension 533 extending outward along the dividing line dl and a hole 534 through which the extension 533 passes in the vertical (circumferential) direction. The protrusion 532 of the positioning part 53A fits into the hole 534 of the positioning part 53B, thereby positioning the dividing bodies 50A and 50B. Furthermore, with... Figure 7 In contrast to the configuration shown, a protrusion 532 for positioning may be provided on the dividing body 50B, and a hole 534 may be provided on the dividing body 50A.

[0099] Furthermore, the delivery cylinder 5 has a hinge portion 52 that makes the other ends CE2A and CE2B of the proximal ends of the set of dividing bodies 50A and 50B adjacent to each other in a substantially parallel manner, connects the other ends CE2A and CE2B in the circumferential direction to each other, and is integrally formed with the set of dividing bodies 50A and 50B.

[0100] Hinge part 52 Figure 7 As shown in (a) and (f), extensions extending outward along the dividing line dl of the dividing bodies 50A and 50B are continuously provided, such as... Figure 7 As shown in (c), an axially extending groove fg is formed in the center.

[0101] In this embodiment, such as Figure 7 , Figure 8As shown, the groove spacing (screw lead) GP1 of the semi-cylindrical axial front-end side spiral groove 511 formed on a set of split bodies 50A and 50B is different from the groove spacing (screw lead) GP2 of the axial rear-end side spiral groove 512.

[0102] In a set of helical grooves 51 formed on the segmented body, the axial front-end helical groove 511, which is semi-cylindrical in shape, has a narrower spacing than the rear-end helical groove 512, which is part of the others. Specifically, the portion corresponding to the length of the retaining sleeve 31 of the rod support 3 from the front end has a narrower spacing than the rear-end helical groove 512, which is part of the others.

[0103] In this embodiment, by making the spacing between the front-side spiral groove 511 and the rear-side spiral groove 512 in the spiral groove 51 formed on the delivery cylinder 5 different, the forward speed of the rod support 3 during the delivery action is different. As a result, it is possible to achieve fine adjustment of the extrusion amount of the connecting part 35 of the rod support 3 and the joint portion Ls of the rod-shaped cosmetic material L.

[0104] Figure 9 This is an explanatory diagram illustrating the process of folding the delivery tube 5 according to the first embodiment while holding the rod support 3 in place for assembly.

[0105] Figure 9 (a) is a diagram showing the state of the delivery cylinder 5 before assembly. The segments 50A and 50B are, for example, formed by injecting resin into a mold having a cavity, as is a common method of manufacturing resin articles, and then removed by opening the surrounding mold. For example, Figure 9 (a) The delivery cylinder 5 is made of resins such as POM and PBT.

[0106] exist Figure 9 (a) In the open state, the clamping rod support 3, as shown Figure 9 As shown in (b), by using the folding groove fg of the hinge portion 52 as a rotation axis, at least one of the set of segmented bodies 50A and 50B is rotated to fold the set of segmented bodies, thereby achieving the desired effect. Figure 9 As shown in (c), it becomes cylindrical.

[0107] Figure 9 (b) Figure 9 When the segmented body is cylindrical in (c), it is folded by using the axially extending groove fg formed at the center of the hinge portion 52, which extends along the strip, as a fold line. Therefore, if the accuracy of the groove fg formed on the hinge portion 52 is improved, it is difficult for the folding position to deviate when the segmented body is assembled into a cylindrical shape.

[0108] further, Figure 9 (b) Figure 9 When the tube becomes cylindrical in (c), it is aligned by engaging the positioning protrusion 532 with the positioning hole 534. Through this alignment, the spiral groove 51 does not shift on the inner circumference of the cylindrically folded delivery tube 5, and the groove can be formed continuously.

[0109] In this way, by connecting the segmented parts with the hinge part and rotating the hinge part as the center, and aligning them through positioning, even if the central core (mold) and the outer peripheral mold are used and the cylinder is not integrally formed, it can be precisely and delicately formed into a delivery cylinder.

[0110] <Comparative Example>

[0111] here, Figure 10 The diagram shows an example of assembling the rod support into the delivery cylinder while rotating it, as a comparative example.

[0112] Figure 10 In the typical assembly of the delivery cylinder and rod support shown, to engage the helical groove 51X of the nut portion of the integrally formed delivery cylinder 5X with the engaging protrusion 341X of the bolt portion of the rod support 3X, the rod support 3X is rotated relative to the delivery cylinder 5X to be screwed in. At this time, the position of the engaging protrusion 341X in the rod support 3X moves from the axial front end side to the rear end side of the delivery cylinder 5X through the rotational movement, so that it reaches... Figure 1 (b) shows the rear end of the storage location before use (the location when it is taken out of the warehouse).

[0113] In contrast, in this invention, when the rod support 3 is clamped by the dividing bodies 50A and 50B, the position of the engaging protrusion 341 of the rod support 3 (which acts as a bolt) relative to the delivery cylinder 5 (which acts as a nut) can be freely determined. Therefore, as Figure 9 As shown in (b), the position of the rod support 3 in the delivery cylinder 5 can be directly set to the storage position before use when the rod is shipped out. Therefore, during the assembly process, there is no need for axial movement to store the rod support 3 inside the delivery cylinder 5.

[0114] Thus, in the assembly process using the segmented body of the present invention, it is not necessary to Figure 10 The axial rotational movement shown in the diagram, used for assembling the rod support 3X and the feed cylinder 5X, can significantly improve productivity.

[0115] <Variation Example 1>

[0116] The above embodiment shows an example in which the dividing bodies 50A and 50B are integrated through the hinge portion 52. However, the dividing bodies constituting the delivery cylinder 5A may not be integrated, but rather separate.

[0117] Figure 11The diagram illustrates the process of connecting and assembling the feed tube 5A involved in the first modification, while holding the rod support.

[0118] like Figure 11 As shown in (a), for example, positioning parts (53C, 53D) (56C, 56D) are provided at both ends of the circumferential direction of each segment 50C, 50D of a set of segments.

[0119] In detail, positioning portions 53C and 53D are provided at one end CE1C and CE1D of each segment 50D, 50D, which are a set of segmented bodies, in the circumferential direction, similar to the first embodiment. Furthermore, positioning portions 56C and 56D are provided at the other end CE2C and CE2D of each segment 50C and 50D, which are a set of segmented bodies, in the circumferential direction, proximal.

[0120] like Figure 11 (a) Figure 11 As shown in (c), the positioning portions 53C and 56D include protrusions 532 and 562 protruding from the extension portions 531 and 561 extending outward relative to the dividing line dl, and the positioning portions 53D and 56C include holes 534 and 564 extending through the extension portions 533 and 563 in the vertical direction.

[0121] Moreover, in Figure 11 With (a) the rod support 3 in the open state, place it on the lower segment 50D, as shown. Figure 11 As shown in (b), the upper part of the segment 50C is covered, causing the protrusions 532 and 562 of the positioning parts 53 and 56 to engage with the holes 534 and 564 respectively, thereby achieving the desired effect. Figure 11 As shown in (c), it is assembled into a cylindrical shape while being positioned.

[0122] At this time, by using the protrusions 532 and 562 of the positioning parts 53C, 56D, 53D, and 56C to fit into the holes 534 and 564 respectively, alignment is achieved, so that the spiral groove 51 does not shift within the inner circumference of the cylindrically connected delivery cylinder 5A, and the groove is continuously formed.

[0123] In this way, by forming the segmented parts as other components, aligning and connecting them, even if the central core (mold) and the outer peripheral mold are used instead of integrally forming a cylindrical shape, if the alignment accuracy is improved, it is possible to precisely and delicately form a delivery cylinder.

[0124] Here, if the accuracy of the positioning position of the positioning part is improved, it will be difficult for the assembly position to shift when the segmented body is assembled into a cylindrical shape.

[0125] Therefore, in this modified example and the first embodiment described above, an example is described in which a pair of positioning portions are provided axially on one end side and the other end side in the circumferential direction. However, more than two pairs of positioning portions may be provided axially. Furthermore, in this example, the positioning portions 53C and 53D on one end side of the circumferential direction and the positioning portions 56C and 56D on the other end side of the circumferential direction are provided at the same position in the axial direction, but they may be provided at different positions.

[0126] Alternatively, the holes and protrusions used for a pair of positioning parts can be formed elongated in the axial direction. For example, the entire circumferential end can be a positioning part, with an extension provided in the entire axial region of the end, forming an axially extending plate-like protrusion and an axially extending elongated hole, thereby constituting an axially long engaging part.

[0127] By providing two or more pairs of positioning parts in the axial direction, or by extending the protrusions or holes in the axial direction, the alignment accuracy can be improved through further positioning.

[0128] Furthermore, in the axial direction of the other end of the circumferential proximal end, in addition to the hinge portion 52 of the first embodiment, a positioning portion may be further provided in the portion where the hinge portion 52 is not provided.

[0129] Furthermore, in the above-described embodiments and modified example 1, the engaging part (spiral groove) of the delivery cylinder 5 is as follows: Figure 3 As shown, the shape suitable for cutting the connecting part of the rod support 3 and for feeding the connecting part Ls has been described, but the rod support that can engage with the feeding cylinder shown in this embodiment is not limited to... Figure 3 The shape shown. That is, the engaging end of the delivery cylinder, which is a resin-made segment with a spiral groove on its inner circumference, i.e. the delivery member, can be a shape that does not preclude the breakage of the connecting part of the rod support.

[0130] In addition, it is able to Figure 3 The structure of the spiral groove of the feed cylinder engaged with the rod support 3 shown is not limited to... Figure 7 (c) Figure 8 The shape shown.

[0131] <Variation Example 2>

[0132] Figure 12 The diagram of the delivery cylinder 5B involved in the second variation is now open.

[0133] In this modified example, the spiral grooves 513 (513E, 513F) formed on the inner circumferential surfaces of the segmented bodies 50E and 50F of the delivery cylinder 5B have the same spacing. Furthermore, Figure 12 For example, with the same spacing, the spacing width can be wider or narrower.

[0134] The split bodies 50E and 50F, with the spiral groove 513 in such a configuration, are also connected from... Figure 13 The state shown is as follows: Figure 9 (b) Figure 9 (c) is folded and positioned to form the delivery tube 5B.

[0135] Here, in Figure 12 In the case of a nut with evenly spaced spiral grooves, as shown in the feed tube 5B, it can also be formed by pulling the core out from the center of the tube. However, by using a segmented body, it is not necessary to... Figure 10 The rotary motion shown for assembling the rod support and the delivery cylinder can utilize... Figure 9 As shown, the clamping mechanism allows for assembly, thus enabling a significant increase in productivity.

[0136] Figure 13 The following are the left front view and the right front view of the discharge tube in the second modified example, which have undercut portions on both sides.

[0137] In this modified example of the feed tube, even on the front end side, a bag-shaped undercut portion can be provided. For example, the front end bag portions 57E and 57F serve as anti-detachment pins on the front end side, so even during rotation, the rod support 3 does not fall off the feed tube 5B. Furthermore, even with a configuration that uniformly has spiral grooves, such as... Figure 13 As shown, when both ends have a bottom-cut structure, the core cannot be pulled out from the center of the tube.

[0138] Thus, even with undercut portions protruding inwards on both the front and rear ends, the feed tube is constructed from a segmented body. Since there is no process of pulling the core out from the center of the tube, it can be formed using a surrounding mold. Therefore, in the feed tube of the present invention, even with a bag-shaped portion at both axial ends, high productivity is ensured by using a general mold to form a segmented body, while good assembly is achieved through the hinge and positioning mechanisms.

[0139] Furthermore, in the delivery tube 5 of the first embodiment described above, an example is shown where only the rear end side has a bag-shaped bottom cut portion. Figure 7 (c) Figure 8 In the spiral-shaped delivery cylinder 5 shown, as... Figure 13 As shown, the front end can also be provided with a bottom cut shape on the bag side. In this case, the bag part on the front end becomes an anti-detachment pin on the front end, so even if it is rotated, the rod holder will not fall off the feed tube.

[0140] <Variation Example 3>

[0141] Figure 14The diagram of the delivery cylinder 5C involved in the third variation is now open.

[0142] In this modified example, the spiral grooves 514 (514G, 514H) formed on the inner circumferential surface of the delivery cylinder 5C change in stages. Furthermore, Figure 14 The example shown is a shape where the spacing width of the spiral grooves on the rear end side is narrow and gradually widens as it moves towards the front end side. Alternatively, it could be a shape where the spacing width of the spiral grooves on the rear end side is wide and gradually narrows as it moves towards the front end side.

[0143] The open state of the segmented bodies 50G and 50H, which have such a configuration of spiral groove 514, also pass through from... Figure 14 The state shown is as follows: Figure 9 (b) Figure 9 (c) is folded and positioned to form the delivery tube 5C.

[0144] Furthermore, the spiral groove formed on the inner circumference of the feed tube of the present invention can be divided into three or more segments. Alternatively, the spiral groove may have a portion formed only on the front or rear end side of the feed tube in the axial direction, and there is no inner circumferential surface with the spiral groove engraved on the inner circumference of the feed tube.

[0145] Furthermore, the segmented body with spiral grooves shown in Modified Examples 2 and 3 can be as follows: Figure 10 As shown in Modification 1, it is constructed by positioning and assembling the segmented bodies that are composed of separate parts. Alternatively, in the segmented bodies with spiral grooves shown in Modifications 2 and 3, such as... Figure 13 As shown in (a) and (b), undercut portions are provided on both sides of the axial direction.

[0146] In this way, by constructing the delivery tube from a resin-made segment, it is not necessary to pull out the core, which serves as the central part of the mold, from the center of the tube. Therefore, the shape of the spiral groove formed on the inner circumference can be freely set.

[0147] Therefore, compared with the delivery cylinder (delivery component) integrally formed by using the mold and core on the outer periphery through an injection process, the delivery cylinder (delivery component) composed of the segment of the present invention can improve the freedom of shape of the inner cylinder surface while maintaining productivity and precision.

[0148] <Second Implementation>

[0149] Next, the rod support and delivery cylinder of the second embodiment of the present invention will be described. Figure 15 This is a perspective view showing the rod support 3α and the delivery cylinder 5α according to the second embodiment.

[0150] In this embodiment, as the bracket-side engaging part of the rod bracket 3α, a spiral screw groove (spiral groove) 38 is formed on the outer peripheral surface of the push cylinder (shaft part) 37 of the lifting body 36, and the rod bracket 3α is bolt-shaped.

[0151] On the other hand, the delivery cylinder 5α is provided with a locking protrusion (delivery side locking protrusion, locking part) 58 on the front end side of the inner circumferential surface.

[0152] In this embodiment, the retaining cylinder 31 and the dish portion 33 are configured as described above. Figure 3 With the same configuration, the dish 33 and the push tube 37 function as a lifting body 36 that can enter relative to the holding tube 31.

[0153] In this embodiment, the stick holder 3α does not have any additional parts; it is constructed as a single component during normal use, so no additional parts are needed for the final extrusion. Therefore, the connecting part of the stick-shaped cosmetic can be used until the very end in a slender, elongated delivery container, without getting hands dirty.

[0154] The engaging protrusion 58 provided on the inner circumferential surface of the delivery cylinder 5α engages with the spiral groove 38 of the push cylinder 37 of the rod support 3α. Similar to the engaging protrusion 341 of the push cylinder 34 in the first embodiment described above, in this embodiment, in order to ensure stable rotational movement of the rod support 3α, the engaging protrusion 58 of the delivery cylinder 5α is as described later. Figure 16 As shown, there are more than two settings.

[0155] In this embodiment, the relationship between the engaging protrusion 58 of the delivery cylinder 5α and the spiral groove 38 of the push cylinder 37 of the rod support 3α is the same as the relationship between a part of the tooth of the nut and the groove of the bolt.

[0156] Furthermore, a limiting part 55 is provided on the outer peripheral surface of the delivery cylinder 5α to prevent the delivery cylinder 5α from rotating relative to the housing 1 and to limit its position. The shapes of the axial position limiting part 551, the rear end side rotation limiting part 552, and the front end side rotation limiting part 553 are the same as in the first embodiment.

[0157] like Figure 15 As shown, in the spiral grooves 38 formed on the pusher cylinder 37 of the rod support 3α, the spacing of the spiral grooves 381 on the rear end side is narrower than that of the spiral grooves 382 on the front end side. Specifically, on the rear end side, the portion corresponding to the length of the retaining cylinder 31 of the rod support 3α has a narrower spacing than the spiral grooves 382 on the front end side, which constitute the other portion.

[0158] In this embodiment, the rod support 3α is Figure 15When the product is in the rear-end side and in the stored state, the engaging protrusion 58 provided near the front end of the delivery cylinder 5α engages with the spiral groove 382 on the front end side of the push cylinder 37 in the forward direction. On the other hand, when the connecting part Ls of the rod-shaped cosmetic L held by the rod holder 3α is extruded until the end, the engaging protrusion 58 of the delivery cylinder 5α engages with the spiral groove 381 on the rear end side of the push cylinder 37.

[0159] In this embodiment, the spiral groove structure of the pusher cylinder 37 of the rod support 3α enables the breaking of the connecting portion 35 of the rod support 3 and the extrusion of the connecting portion Ls of the rod-shaped cosmetic material L to be effectively achieved simultaneously by varying the forward speed.

[0160] Figure 16 An explanatory diagram showing the state of the delivery tube 5α according to the second embodiment is provided. Figure 16 In the middle, by Figure 15 The views are as follows: (a) is the left front view, (b) is the left side view, (c) is the top view, (d) is the right side view, (e) is the bottom view, and (f) is the right front view.

[0161] like Figure 16 As shown, in the segmented bodies 50I and 50J that constitute the delivery cylinder 5α, a locking protrusion 58 (58I and 58J) is provided on the inner periphery of the front end side.

[0162] In the delivery cylinder 5α, the hinge portion 52 connecting the dividing bodies 50I and 50J, the positioning portions 53I and 53J used for positioning during folding, the limiting portion 55 provided on the outer peripheral surface of the dividing bodies 50I and 50J and engaging with the housing 1 and the connector portion 4 have the same shape and function as in the first embodiment.

[0163] In addition, similar to the first embodiment, the rear end side is provided with a rear end side bag portion 54I, 54J in the shape of a bag with a bottom cut.

[0164] However, in this configuration, the front end pocket 54 is not provided on the front end side of the delivery cylinder 5α so as not to obstruct the rotation of the bolt-shaped rod support 3α. However, assuming that the convex engagement protrusions 58 (58I, 58J) on the inner side of the front end are temporarily cylindrical in shape, and are formed using the outer peripheral mold and the central core, they become the undercut portion when the core is pulled out.

[0165] Furthermore, in this embodiment, as shown in the above-described variation 1, the segmented body can be formed as separate parts, and the segmented bodies composed of separate parts can be positioned and combined.

[0166] In this configuration, by using positioning for alignment, even if the central core (mold) and the outer peripheral mold are not integrally formed into a cylindrical shape, if the alignment accuracy is improved, it is possible to precisely and delicately form a delivery cylinder.

[0167] Furthermore, this embodiment describes an example of providing a pair of positioning parts in the axial direction, but two or more pairs of positioning parts can be provided in the axial direction. By providing two or more positioning parts, the accuracy can be further improved.

[0168] In addition, it used Figures 15-16 In the second embodiment, the shape suitable for the pushing force when the dish portion enters the holding cylinder is described, as the spacing changes by altering the pusher cylinder on the rod support side. However, it is possible to... Figure 16 The shape of the spiral groove 38 of the rod support 3, which engages with the delivery cylinder 5α shown, is not limited to... Figure 15 The shape shown. That is, the delivery member, which is a delivery tube with a locking end having a locking protrusion at the front end and is made of resin as a segment, can be a shape that does not require the connection of the rod support to break.

[0169] For example, the spiral groove formed on the outer periphery of the pusher cylinder of the rod support can be as follows: Figure 12 , Figure 14 The spiral shape of the feed cylinder, as shown, has a uniform axial spacing width, or it can vary in stages. Furthermore, the spiral grooves of the feed cylinder can be divided into three or more sections.

[0170] Furthermore, in this embodiment, an example is shown where two engaging protrusions 58 are provided around the front end of the delivery tube; however, the number of engaging protrusions can be three or more. Additionally, an example is shown where the engaging protrusions 58, serving as the engaging portion, are of a slanted, laterally wide shape; this shape can be further elongated, or it can be a cylindrical protrusion (Porch) shape.

[0171] In this embodiment, by making the delivery tube a resin-based segment, it is not necessary to remove the core, thus allowing for free setting of the shape of the engaging protrusions formed on the inner periphery.

[0172] Furthermore, by constructing the delivery tube from a segmented body, the process of pulling out the core from the center of the tube is eliminated. Therefore, even with a protrusion on the front end, a bag-like portion on the rear end, and bottom cut portions on both sides, it is possible to form the tube using a surrounding mold. Thus, in the delivery tube of the present invention, even if the inner circumference is shaped with bottom cut portions on both sides formed by engaging protrusions and bag-like portions, high productivity is ensured by using a general mold to form the tube from a segmented body, while good assembly is achieved through the hinge and positioning.

[0173] Therefore, compared with a delivery cylinder integrally formed by using an outer peripheral mold and core through an injection process, the delivery cylinder (delivery component) composed of the segment of the present invention can improve the freedom of shape of the inner cylinder surface while maintaining productivity and precision.

[0174] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to these specific embodiments. Various modifications and alterations can be made within the scope of the spirit of the embodiments of the present invention as described in the claims.

[0175] Symbol Explanation

[0176] 1. Shell (outer cylinder, shaft cylinder)

[0177] 2. Sleeve (middle tube)

[0178] 3. 3α Rod Support (Delivered Component)

[0179] 4. Connector section

[0180] 41. Dividing protrusion

[0181] 42. Housing locking protrusion

[0182] 5, 5A, 5B, 5C, 5α: Delivery cylinder (nut component, delivery component)

[0183] 6 O-rings

[0184] 7 masks

[0185] 10, 10α - Discharge Container

[0186] 11 linear protrusions

[0187] 12. Front side inner periphery

[0188] 13. Use ring-shaped protrusions for card assembly.

[0189] 21 Hollow section of a roughly polygonal prism (second rotation restriction mechanism)

[0190] 22. Front inner circumferential surface

[0191] 23. Peripheral connection part

[0192] 31 Retaining Cylinder

[0193] 312 Outer rotation limiting part

[0194] 32, 36 Lifting bodies

[0195] 33. Dish radical

[0196] 33b base plate

[0197] 34, 37 Push tubes

[0198] 35 Connection part

[0199] 37 Pusher cylinder (shaft section)

[0200] 38 spiral grooves

[0201] 381 Rear-end side spiral groove

[0202] 382 Front-end side spiral groove

[0203] 341 Stent-side locking protrusion (locking protrusion)

[0204] 50A, 50B, 50C, 50D, 50E, 50F, 50G, 50H, 50I, 50J split body

[0205] 51. Spiral groove (a spiral groove or engaging part)

[0206] 511 Front-end side spiral groove

[0207] 512 Rear-end side spiral groove

[0208] 513 Spiral Groove

[0209] 514 Spiral Groove

[0210] 52 Hinge section

[0211] Positioning sections 53A, 53B, 53C, 53D, 53I, and 53J

[0212] 54A, 54B, 54I, 54J Rear end side pocket (bottom cut)

[0213] 55 Restricted Section

[0214] 551 Axial position limiting part

[0215] 552 Rear-end rotation limiting part

[0216] 553 Front-end rotation restriction part

[0217] Positioning section of 56C and 56D

[0218] 57E, 57F Front side pocket (bottom cut)

[0219] 58 (58I, 58J) Dispatch side engaging protrusion (engaging protrusion, engaging part)

[0220] L-shaped cosmetic stick

[0221] S elevation difference

[0222] CE1A and CE1B: One end (distal end) in the circumferential direction.

[0223] The other end (proximal end) of CE2A and CE2B in the circumferential direction.

[0224] APE axial front end

[0225] The rear end of the ATE axis.

Claims

1. A delivery cylinder made of resin and capable of engaging with a delivery member, said delivery cylinder comprising: A set of segmented bodies in the shape of a semi-cylindrical cylinder. in, The assembly includes a locking part that allows the ejected component to rotate and move simultaneously when the set of segmented parts are assembled together. On the outer peripheral surface of each of the set of segmented bodies, after the delivery cylinder is assembled inside the housing, a rotation limiting part is provided to restrict the rotation of the delivery cylinder relative to the housing. On the outer circumferential surface of the delivery cylinder, there is an axial position limiting portion that is erected at a right angle relative to the axial direction and is shaped as part of a flange that lacks a circumferentially extending flange. In the semi-cylindrical shape of the set of segmented bodies, a bottom-cut portion is provided at the front end relative to the forward direction of the delivered component, and a bottom-cut portion is provided at the rear end relative to the forward direction of the delivered component. The bottom-cut portions at both the front and rear ends protrude inwards. The front-side rotation limiting part engages with the inner circumference of the connector part.

2. The delivery tube according to claim 1, wherein, The engaging portion is a groove formed on the inner circumferential surface of the semi-cylindrical shape in such a way that it becomes a continuous spiral groove in the circumferential direction when the set of segmented parts are assembled together. A locking protrusion is provided on the rear end side of the ejected component in the axial direction.

3. The delivery tube according to claim 2, wherein, The spacing of the spiral grooves on the front end side of the semi-cylindrical shape formed on the set of segments is different from the spacing of the spiral grooves on the rear end side of the axial direction.

4. The delivery tube according to claim 1, wherein, The engaging portion consists of multiple engaging protrusions disposed on the inner circumferential surface of the semi-cylindrical shape and on the front end side in the traveling direction for extruding the ejected component. On the ejected component, a spiral groove is formed on the outer peripheral surface of the shaft portion extending axially.

5. The feeding tube according to any one of claims 1 to 4, wherein, A positioning part is provided at one end of the circumference of each of the group of segmented bodies. When assembling the set of segments, the positioning parts of each segment are fitted together.

6. The delivery cylinder according to claim 5, comprising: A hinge portion integrally formed with the set of segmented bodies, the hinge portion causing the other ends of the set of segmented bodies to be approximately parallel to each other in the circumferential direction, and connecting the other ends to each other. With the hinge portion as the center, at least one of the group of segments is rotated to fold and assemble the group of segments.

7. The feeding tube according to any one of claims 1 to 4, wherein, Positioning parts are provided at both ends of the circumference of each segment of the group of segments. The set of segments is formed independently. When the group of segments is connected, the positioning portions at both ends of the circumferential direction of each segment are engaged.

8. A dispensing container comprising: The delivery tube according to any one of claims 1 to 7; and The delivered component engages with the delivery cylinder and rotates and moves relative to the delivery cylinder. in, A retaining sleeve for holding the rod-shaped body is provided on the front end side of the ejected component.

9. The delivery container according to claim 8, wherein, The rod-shaped object is a solid or semi-solid cosmetic.

10. A method for assembling a delivery cylinder and a delivery component, comprising the following steps: A process of forming a set of semi-cylindrical segments by injecting resin into a mold having a cavity, wherein the set of semi-cylindrical segments are grooved in such a way that they become circumferentially continuous spiral grooves when assembled; and An assembly process in which the delivered component is clamped within the set of segmented bodies, and the set of segmented bodies is assembled into a cylindrical shape. On the outer peripheral surface of each of the set of segmented bodies, after the delivery cylinder is assembled inside the housing, a rotation limiting part is provided to restrict the rotation of the delivery cylinder relative to the housing. On the outer circumferential surface of the delivery cylinder, there is an axial position limiting portion that is erected at a right angle relative to the axial direction and is shaped as part of a flange that lacks a circumferentially extending flange. In the semi-cylindrical shape of the set of segmented bodies, a bottom-cut portion is provided at the front end relative to the forward direction of the delivered component, and a bottom-cut portion is provided at the rear end relative to the forward direction of the delivered component. The bottom-cut portions at both the front and rear ends protrude inwards. The front-side rotation limiting part engages with the inner circumference of the connector part.

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