WO2014166212A1 - 一种口红管中束芯 - Google Patents

一种口红管中束芯 Download PDF

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Publication number
WO2014166212A1
WO2014166212A1 PCT/CN2013/083915 CN2013083915W WO2014166212A1 WO 2014166212 A1 WO2014166212 A1 WO 2014166212A1 CN 2013083915 W CN2013083915 W CN 2013083915W WO 2014166212 A1 WO2014166212 A1 WO 2014166212A1
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WO
WIPO (PCT)
Prior art keywords
spiral
snap ring
core
fork
card slot
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PCT/CN2013/083915
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English (en)
French (fr)
Inventor
朱卫锋
倪伯坤
房永庆
王林斌
Original Assignee
浙江阿克希龙舜华铝塑业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 浙江阿克希龙舜华铝塑业有限公司 filed Critical 浙江阿克希龙舜华铝塑业有限公司
Priority to EP13881859.6A priority Critical patent/EP3005900B1/en
Priority to US14/412,057 priority patent/US9603434B2/en
Publication of WO2014166212A1 publication Critical patent/WO2014166212A1/zh

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
    • A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/06—Casings wherein movement of the lipstick or like solid is a screwing movement

Definitions

  • the invention relates to a cosmetic packaging product, in particular to a lipstick core in a lipstick tube.
  • Cosmetics are also available in a variety of forms, such as powders, liquids, pastes, and the like.
  • different cosmetics are generally made into different shapes and packed in suitable containers.
  • powder-like cosmetics such as lipstick, lipstick, concealer, skin whitening stick and sunscreen stick are installed in the powder tube, generally designed and manufactured in the lipstick tube.
  • the existing lipstick tube on the market generally comprises a cover, a middle bundle core and a base, wherein the middle bundle core comprises a middle bundle, a fork, a bead and a spiral, and the assembled middle bundle core is sleeved into the base, and then cooperates with the cover. It is a finished lipstick tube.
  • most lipstick tubes use lubricating oil and glue to achieve smooth, flexible movement between components and fixation between components. As a result, the production cost is increased, the process is complicated, and pollution is easily caused.
  • the announcement number is CN 201767295 U
  • the patent document discloses a middle beam core of a lipstick tube, which comprises a middle bundle, a spiral, a fork and a bead which are coaxially passed through from the outside to the inside.
  • the middle bundle is fixedly connected with the spiral, and the spiral inner peripheral surface is provided with a spiral shape.
  • the guiding groove, the wall surface of the fork is provided with a notch disposed along the axial direction thereof, and the outer peripheral surface of the bead is provided with a protrusion extending through the notch and extending into the guiding groove, and the bottom end of the spiral is fixed between the fork and the fork A bump on the inner circumferential surface of the spiral or on the outer circumferential surface of the fork.
  • the middle core of the above utility model is provided with a plurality of bumps between the bottom end of the screw and the fork to adjust the spacing between the spiral and the fork, thereby controlling the friction between them and the torque during rotation.
  • the spiral and the fork are still prone to jamming when moving relative to each other. Lubricants are needed, and there is still a hidden danger of polluting the cosmetic paste.
  • the publication number is CN 201533649 U
  • the patent document discloses a noodle tube comprising a middle bundle, a spiral, a fork and a bead, the middle sleeve being sleeved on the outer circumference of the spiral and fixed to the spiral, the spiral sleeve being placed on the outer circumference of the fork and axially fixed to the fork
  • the bead is in a fork, the bead is provided with a protrusion, the fork is provided with an axial through groove, and a spiral guiding groove is arranged on the inner wall of the spiral, and the protrusion on the bead passes through the fork After the upper channel is grooved, it falls into the guiding groove of the spiral, and the axial direction of the spiral and the fork is fixed: the top of the fork has an outward expansion ring, and the outer diameter of the expansion ring is larger than the inner diameter of the spiral.
  • the top of the spiral is on the lower side of the expanding ring; the circumference of the fork is provided with a ring-shaped protrusion, the sheet-like protrusion is between the fork and the spiral, and is in the axial section of the fork and the spiral Arc shape.
  • a ring-shaped protrusion is provided on the circumferential surface of the fork, and the sheet-like protrusion is between the fork and the spiral, and is arc-shaped in the axial section of the fork and the spiral, so that the fork and the spiral There is a tension between them to ensure a certain torque and smooth lubrication, which reduces the use of lubricant.
  • the above structure reduces the use of lubricating oil by adding a sheet-like protrusion to increase the force between the spiral and the fork, but the medium bundle and the spiral are still fixed by using a bonding glue, which is easy to contaminate the cosmetic cream during the production process. Paste, there are hidden dangers such as deterioration of the beauty cream.
  • the invention provides an oil-free and glue-free lipstick tube core core, which solves the problem that the spiral and the middle beam in the bundle core of the existing lipstick tube are fixed by glue, and the glue easily overflows the lipstick lipstick.
  • a beam core in a lipstick tube comprising a bead, a fork, a spiral and a middle bundle, wherein an axially arranged keyway structure and a circumferentially arranged snap ring groove structure are arranged between the spiral and the middle bundle.
  • the keyway structure is used for the circumferential fixing of the spiral and the middle beam
  • the snap ring groove structure is used for the axial fixing of the spiral and the middle beam.
  • the middle beam core is conventionally mounted on the base, and the parts on the beads, the fork, the spiral and the middle bundle are defined as being lower relative to the base, and are defined as being relatively far from the base; the beads, the fork, the spiral and the middle bundle are At both ends, the base is defined as the bottom and the base is defined as the top.
  • the keyway structure is a spline structure, which includes a spline disposed inside the middle bundle and a keyway disposed on the outer wall of the spiral, and the number of splines may be small.
  • the number of keyways is convenient for the combination of the middle beam and the spiral.
  • the spline structure may be disposed in a partial area.
  • the spline structure on the inner wall of the middle bundle is disposed in the middle of the middle bundle, and the length in the axial direction accounts for 1/2 to 4/5 of the length of the middle bundle.
  • the key groove has a depth of 0.10 to 0.15 mm and a number of 50 to 120.
  • the snap ring slot structure includes a first snap ring disposed on the outer wall of the spiral, and a first card slot disposed on the inner wall of the middle bundle and the first snap ring.
  • the middle bundle and the spiral are fixed by a set of snap ring slot structure.
  • the spiral outer wall is provided with a second card slot adjacent to the first snap ring
  • the middle bundle inner wall is provided with the first a second snap ring of the second card slot
  • the second snap ring is next to the first card slot, such that the interface between the first card ring and the second card slot and the first card slot and the second card ring is
  • the snap ring and the card slot may be formed by stamping, and the intermediate beam comprises a middle beam body and a thin wall segment connected to the bottom of the middle beam body, and the thin wall segment is folded inwardly to form a middle beam.
  • the folding portion forms a second snap ring, and the groove between the folded portion and the middle bundle body constitutes a first card slot, so that the slit portion of the thin wall segment can be folded into the middle of the middle bundle, which is not easy to be scraped with other components. rub.
  • the fold of the folded portion is the bottom edge of the middle bundle.
  • the bottom edge of the middle bundle is provided with a circular chamfer to facilitate the middle bundle and the spiral card fit.
  • the top of the first snap ring is provided with a guiding slope, and the radius above the guiding slope is smaller than the radius of the snap ring, and the middle beam can be guided to slide downward.
  • the ratio of the wall thickness of the thin wall segment to the middle beam body is 1/3 ⁇ 2/3, and the height of the thin wall segment along the axial direction of the middle beam is 2.5mm ⁇ 5.0mm.
  • the height of the folded portion in the axial direction of the middle bundle is 1.0 mm to 2.0 mm.
  • the circumference of the fork is provided with a ring-shaped protrusion
  • the sheet-like protrusion is between the fork and the spiral
  • the outer diameter is larger than the inner diameter of the spiral.
  • the card slot and the snap ring cooperate to realize the axial fixing of the spiral and the middle beam
  • the card slot or the snap ring disposed on the spiral can also be disposed on the accessory fixed to the opposite axial axis, such as a fork, a base, and the like.
  • the inner wall of the spiral is provided with a spiral notch
  • the fork is provided with an axially arranged guiding groove
  • the bead is provided with a protruding leg extending through the guiding groove and extending into the notch.
  • the number of the guiding grooves and the convex legs are two and symmetrically arranged.
  • the outer wall of each end of the fork is provided with a limiting ring, and the spiral is caught between the two limiting rings.
  • the paste is prevented from moving during use, and a gap is formed at each end of the guiding groove.
  • the bead of the bead will snap into the notch to achieve axial positioning.
  • two notches are provided on opposite sides of the guiding groove.
  • the top of the fork is provided with a slit extending to the guide groove.
  • the middle core of the above structure after the assembly is completed, the convex legs of the beads pass through the guiding grooves on the fork and fall into the spiral notches; the spiral is caught between the two limit rings of the fork; the pieces on the fork Raised The end of the end is in contact with the inner wall of the spiral, so that the inner wall of the spiral has a certain gap with the outer wall of the fork.
  • the frictional force of the spiral is reduced, the rotation is smoother, and the torque is constant; the middle bundle and the spiral realize the fixed fit.
  • the rotating middle beam simultaneously drives the spiral to rotate.
  • the core of the lipstick tube is provided with an axially arranged keyway structure between the spiral and the middle bundle and a circumferentially arranged snap ring card slot structure to realize the screw and the middle bundle fixing without using glue, thereby avoiding glue generation The situation of contaminated cosmetic cream.
  • Figure 1 is an exploded view of the core of the present invention.
  • Figure 2 is an axial cross-sectional view of the core of the present invention.
  • Figure 3 is a partial enlarged view of A in Figure 2.
  • Figure 4 is a radial cross-sectional view of the core of the present invention.
  • Figure 5 is a partial enlarged view of B in Figure 4.
  • the embodiment includes beads 1 , fork 2 , and spiral 3 which are coaxially sheathed from the inside to the outside. And the middle bundle 4, wherein the beads 1 are used to hold the paste.
  • the inner wall of the spiral 3 is provided with a spiral notch 35
  • the fork 2 is provided with an axially arranged guiding groove 21, and the guiding groove 21
  • the guiding groove 21 There are two, symmetrically distributed on the fork 2, and two ends of the guiding groove 21 are respectively provided with an upper notch 26 and a lower notch 25, and the bead 1 is provided with a convex leg 11 which passes through the guiding groove 21 and extends into the notch 35
  • the prong 11 will snap into the upper notch 26 or the lower notch 25 to prevent the prong 11 from disengaging the notch when the spiral 3 is overturned 35 , damage the middle core.
  • the outer wall of the two ends of the fork 2 is respectively provided with an upper limit ring 24 and a lower limit ring 23, and when assembled, the spiral 3 is placed on the fork 2 In addition, it is caught between the upper limit ring 24 and the lower limit ring 23 to achieve axial fixation of the screw 3 and the fork 2.
  • the top of the fork 2 is provided with a slit 27 extending to the guide groove 21, and when fitted, the slit is made 27
  • the opening is convenient for the bead 1 to be inserted into the fork 2, and the slit 27 can be closed to allow the spiral 3 to be placed outside the fork 2.
  • the middle beam 4 is rotated left and right, and the middle beam 4 drives the spiral 3 to rotate.
  • the notch 35 on the inner wall of the spiral 3 will move the convex foot 11 of the bead 1 due to the limitation of the guiding groove 21 on the fork 2.
  • the bead 1 can only move in the axial direction, and the telescopic operation of the paste on the bead 1 is realized.
  • the above structure is a conventional design of the existing medium beam core.
  • the improvement of the present invention mainly lies in the fixing manner of the spiral 3 and the middle beam 4, as shown in Figs. 3 ⁇ 5, the outer wall of the spiral 3 is provided with a keyway 33 and a snap ring 31, correspondingly
  • the inner wall of the middle bundle 4 is provided with a matching spline 43 and a card slot 41, thereby achieving circumferential fixation and axial fixation of the spiral 2 and the middle bundle 4.
  • This connection method does not require glue, and the paste can be prevented from being Glue pollution.
  • the top of the snap ring 31 is provided with a guiding ramp 34 for guiding the ramp 34.
  • the upper radius is smaller than the radius of the snap ring, which is actually a conical surface, which has the function of guiding the spiral 3 and the middle bundle 4.
  • the spiral 3 The outer wall is further provided with a card slot 32 close to the snap ring 31, and the inner wall of the middle bundle 4 is further provided with a snap ring 42 close to the card slot 41, the joint of the snap ring 31 and the card slot 32 and the card slot 41 and the snap ring 42
  • the joints form a matching vertical step structure, thus forming a snap-fit fit that enables the spiral 3 and the middle bundle 4
  • the connection is more secure.
  • the above-mentioned snap ring or the card slot can be formed by punching.
  • the card slot 41 and the snap ring 42 in this embodiment are formed by the following methods:
  • the inner wall of the bottom of the middle beam 4 is punched to form a thin wall section 44, and the thin wall section 44 is partially folded inward to form a folded portion.
  • the folded portion 45 constitutes the snap ring 42, and the groove between the folded portion 45 and the center bundle body is the card slot 41, and the folded portion of the folded portion 45 constitutes the bottom edge 46 of the middle bundle 4, and the bottom edge of the middle bundle 4 46 has a circular chamfer to aid assembly.
  • the ratio of the wall thickness of the thin-walled section 44 to the center bundle body is 1/2, and the height of the thin-walled section 44 along the axial direction of the middle bundle 4 is 3.5 mm, the height of the folded portion (i.e., the snap ring 42) along the axial direction of the middle bundle 4 is 1.4 mm, and the axial length of the card slot 32 is 1.5 mm, which is slightly larger than the length of the folded portion 45.
  • the spline 43 and the keyway 33 cooperate to form a keyway structure for the middle bundle 4 and the spiral 3
  • the spline 43 on the inner wall of the middle bundle 4 is disposed in the middle of the middle bundle 4, and the length in the axial direction accounts for 3/4 of the length of the middle bundle 4, and the key groove 33 on the outer wall of the spiral 3
  • the depth is 0.12mm and the number is 90, and the number of splines 43 is much smaller than the number of keyways 33, making assembly easier.
  • the circumference of the fork 2 is provided with a ring-shaped projection 22, the sheet-like projection 22 is between the fork 2 and the spiral 3, and the spiral 3
  • the inner diameter is smaller than the outer diameter of the sheet-like protrusion 22, and after the assembly is completed, the sheet-like protrusion 22 is arc-shaped by the compression of the spiral 3, forming a tensile force against the spiral 3, so that the product generates a certain torque when rotating. Smooth feeling.
  • the present invention first utilizes an axially disposed keyway structure and a circumferentially disposed snap ring card slot structure to provide the helix 3 and the middle beam 4
  • the fixed fit eliminates the use of glue, which not only reduces the manufacturing cost, but also prevents the glue from contaminating the paste on the beads 1.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cosmetics (AREA)

Abstract

一种口红管中束芯，包括珠子（1）、叉子（2）、螺旋（3）和中束（4），所述螺旋（3）和中束（4）之间设有轴向布置的键槽结构（33，43）和周向布置的卡环（31，42）卡槽（32，41）结构。通过螺旋（3）和中束（4）之间设有轴向布置的键槽结构（33）和周向布置的卡环（31，42）卡槽（32，41）结构，在不使用胶水的情况下实现螺旋（3）和中束（4）固定，避免发生胶水污染美容膏的情况。

Description

一种口红管中束芯
本发明涉及一种化妆品包装用品，特别涉及容纳膏状美容品的一种口红管中束芯。
目前，化妆已成为人们日常生活中不可缺少的一部分。化妆品的形态也多种多样，例如粉状，液体状、糊状等。为了方便化妆品的使用，人们一般将不同的化妆品制作成不同的形状并装在合适的容器中。其中粉条状的化妆品，如口红、唇膏、遮瑕膏、皮肤美白棒和防晒霜棒等装在粉条管，一般统称口红管中进行设计制造。
目前市面上现有的口红管一般包括盖子、中束芯和底座，其中，中束芯包括中束、叉子、珠子和螺旋，将装配好的中束芯套入底座内，再与盖配合，即成口红管成品。目前，大多数口红管会使用润滑油和胶水来实现部件之间相互运动平滑、灵活和部件之间的固定。由此，导致了生产成本上升、工艺复杂、易造成污染等不足。
公告号为 CN 201767295 U 的专利文献公开了一种口红管的中束芯，包括由外至内依次同轴穿套的中束、螺旋、叉子和珠子，中束与螺旋固定连接，螺旋内周面上设有螺旋状的导向槽，叉子的壁面上开有沿其轴向设置的槽口，珠子外周面上设有穿过槽口并伸入导向槽的凸起，螺旋底端与叉子之间设有若干固定在螺旋内周面上或叉子外周面上的凸点。
上述实用新型的中束芯在螺旋底端和叉子之间设有若干凸点来调节螺旋和叉子之间的间距，从而控制它们之间的摩擦力以及旋转时的扭力。但由于凸点自身可调性较差，螺旋和叉子相对运动时仍容易发生卡涩，需要使用润滑剂，仍存在产生污染美容膏体的隐患。
公开号为 CN 201533649 U 的专利文献公开了一种粉条管，包括中束、螺旋、叉子和珠子，所述中束套在螺旋的外周、并与螺旋固定，所述螺旋套在叉子的外周、并与叉子轴向固定；所述珠子在叉子内，所述珠子设有突起，所述叉子上设有轴向的通槽，在所述螺旋的内壁上设有螺旋状导向槽，所述珠子上的突起穿过叉子上的通槽后，落入螺旋的导向槽内，所述螺旋与叉子的轴向固定为：所述叉子的顶部具有向外的扩圈，所述扩圈的外径大于螺旋的内径，所述螺旋顶部在靠近扩圈的下侧；所述叉子的周面上设有一圈片状凸起，所述片状凸起在叉子与螺旋之间，且沿叉子与螺旋的轴向剖面中呈圆弧状。
上述方案中通过在叉子的周面上设有一圈片状凸起，所述片状凸起在叉子与螺旋之间，且沿叉子与螺旋的轴向剖面中呈圆弧状，使叉子与螺旋之间具有涨力，从而保障产生一定扭力和手感润滑顺畅，从而减少了润滑剂的使用。
上述结构通过增加片状凸起，使螺旋和叉子之间具有涨力而减少了润滑油的使用，但中束与螺旋之间仍采用采用粘结胶水固定，在生产过程中，容易污染美容膏膏体，存在使美容膏体变质等隐患。
本发明提供了一种无油无胶的口红管中束芯，以解决现有口红管中束芯内联动的螺旋和中束通过胶水进行固定，而胶水容易溢出污染口红膏的问题。
一种口红管中束芯，包括珠子、叉子、螺旋和中束，所述螺旋和中束之间设有轴向布置的键槽结构和周向布置的卡环卡槽结构。
键槽结构用于螺旋和中束的周向固定，而卡环卡槽结构用于螺旋和中束的轴向固定，装配时，螺旋和中束通过以上两种结构实现固定配合，即可以在不使用胶水的情况下实现中束和螺旋的穿套式固定配合，有效防止使用胶水带来的污染问题。
所述中束芯常规是安装在底座上，将珠子、叉子、螺旋和中束上的各部位，相对靠近底座定义为下方，相对远离底座定义为上方；将珠子、叉子、螺旋和中束的两端，靠近底座定义为底部，远离底座定义为顶部。
为了将施加在中束上的力稳定传递到螺旋上，优选的，所述键槽结构为花键结构，它包括设置在中束内部的花键和设置在螺旋外壁的键槽，花键数量可以少于键槽数量，便于中束和螺旋的配合。
花键结构可以设置在局部区域，优选的，所述中束内壁上的花键结构设置在中束的中部，在轴向上的长度占中束长度的 1/2~4/5 。
进一步优选的，所述键槽的深度为 0.10~0.15mm ，数量为 50~120 。
所述卡环卡槽结构包括设置在螺旋外壁的第一卡环，以及位于中束内壁与所述第一卡环相配合的第一卡槽。
中束和螺旋通过一组卡环卡槽结构固定有可能脱开，优选的，所述螺旋外壁设有紧挨第一卡环的第二卡槽，所述中束内壁设有与所述第二卡槽配合的第二卡环，所述第二卡环紧挨第一卡槽，如此，第一卡环和第二卡槽衔接处与第一卡槽和第二卡环的衔接处为相互配合的台阶结构，优选该台阶结构为直角台阶结构，卡合定位更为可靠。
所述卡环和卡槽可以是冲压形成，为了中束外形美观，便于制造，所述中束包括中束本体以及连接在中束本体底部的薄壁段，薄壁段部分向内翻折形成折叠部，折叠部即构成第二卡环，折叠部与中束本体之间的凹槽构成第一卡槽，如此薄壁段的切口部分可以翻折至中束内部，不易与其它部件发生刮蹭。
按照以上的加工方法，折叠部的翻折处为中束的底沿，优选的，所述中束的底沿设有圆弧倒角，有助于中束和螺旋卡装配合。
优选的，所述第一卡环的顶部设有引导斜面，所述引导斜面上方的半径小于卡环半径，可以引导中束向下滑动。
优选的，所述薄壁段与中束本体的壁厚之比为 1/3~2/3 ，所述薄壁段沿中束轴向的高度为 2.5mm~5.0mm 。
进一步优选的，所述折叠部沿中束轴向的高度为 1.0mm~2.0mm 。
优选的，所述叉子的周面上设有一圈片状凸起，所述片状凸起在叉子与螺旋之间，且外径大于螺旋的内径，装配完成后，螺旋压迫片状凸起弯曲，使螺旋和叉子之间具有一定的涨力。
因卡槽和卡环配合实现螺旋和中束的轴向固定，因此设置在螺旋上的卡槽或卡环还可以设置在相对螺旋轴向固定的配件上，如叉子，底座等。
所述螺旋内壁设有螺旋形的槽口，所述叉子上设有轴向布置的导向槽，所述珠子上设有穿过导向槽并伸入所述槽口的凸脚。
转动螺旋时，凸脚沿螺旋形的槽口运动，而珠子整体沿着导向槽轴向运动，实现膏体隐藏和露出。
为了使珠子移动较为平稳，所述导向槽和凸脚的数量均有两个，且对称设置。
为了让叉子相对螺旋轴向固定，所述叉子两端外壁各设有一限位环，所述螺旋卡在两限位环之间。
为了珠子在移动的最高点和最低点实现定位，防止膏体在使用时移动，所述导向槽的两端各设有一缺口。使用时，当珠子处于最高点或最低点位置时，珠子的凸脚将会卡入缺口中，实现轴向的定位。
优选的，两个缺口设于导向槽的异侧。
为了方便中束芯的组装，所述叉子顶部设有延伸至导向槽的切缝。
以上结构的中束芯，在装配完成之后，珠子的凸脚穿过叉子上的导向槽后，落入螺旋的槽口内；螺旋卡在叉子的两限位环之间；所述叉子上的 片状凸起 的端部与螺旋内壁抵触，使螺旋的内壁与叉子外壁存在一定的间隙，在旋转过程中，减少螺旋受到的摩擦力，使旋转更顺畅，同时具有一定的扭力；中束和螺旋实现固定配合，旋转中束同时带动螺旋转动。
本发明的有益效果：
本发明的 口红管中束芯，通过在螺旋和中束之间设有轴向布置的键槽结构和周向布置的卡环卡槽结构，在不使用胶水的情况下实现螺旋和中束固定，避免发生胶水污染美容膏的情况。
图 1 为本发明中束芯的爆炸图。
图 2 为本发明中束芯的轴向剖面图。
图 3 为图 2 中 A 局部放大图。
图 4 为本发明中束芯的径向剖面图。
图 5 为图 4 中 B 局部放大图。
如图 1 和图 2 所示，本实施例包括由从内至外依次同轴穿套在一起的珠子 1 、叉子 2 、螺旋 3 和中束 4 ，其中珠子 1 用于盛装膏体。
其中，螺旋 3 内壁设有螺旋形的槽口 35 ，叉子 2 上设有轴向布置的导向槽 21 ，导向槽 21 有两条，对称分布在叉子 2 上，且导向槽 21 的两端分别设有上缺口 26 和下缺口 25 ，珠子 1 上设有穿过导向槽 21 并伸入槽口 35 的凸脚 11 ，珠子 1 在处于最高点或最低点位置时，凸脚 11 将会卡入上缺口 26 或下缺口 25 中，避免螺旋 3 过转情况下，凸脚 11 脱离槽口 35 ，损坏中束芯。
叉子 2 两端的外壁分别设有上限位环 24 和下限位环 23 ，装配时，螺旋 3 套在叉子 2 外，并卡在上限位环 24 和下限位环 23 之间，实现螺旋 3 和叉子 2 的轴向固定。
为了便于安装，叉子 2 顶部设有延伸至导向槽 21 的切缝 27 ，装配时，使切缝 27 张开，便于将珠子 1 伸入叉子 2 内，也可以使切缝 27 闭合，让螺旋 3 套在叉子 2 外。
装配完成后，左右转动中束 4 ，中束 4 带动螺旋 3 旋转，此时，螺旋 3 内壁上的槽口 35就会带动珠子 1 的凸脚 11 移动，由于叉子 2 上的导向槽 21 的限位作用，珠子 1 只能沿轴向移动，实现珠子 1 上膏体的伸缩操作。
以上结构均为现有中束芯的常规设计，本发明的改进主要在于螺旋 3 和中束 4 的固定方式，如图 3~5 所示，螺旋 3 外壁设有键槽 33 和卡环 31 ，相应的，在中束 4 内壁设有相配合的花键 43 和卡槽 41 ，从而实现螺旋 2 和中束 4 的周向固定和轴向固定，该连接方式不需使用胶水，可以避免膏体被胶水污染。
为了有助于卡环 31 进入卡槽 41 内，卡环 31 的顶部设有引导斜面 34 ，引导斜面 34 上方的半径小于卡环半径，实际上为一圆锥面，有引导螺旋 3 和中束 4 装配的作用。
仅依靠一组卡环卡槽结构有可能使螺旋 3 和中束 4 在较重推拉力下脱开，本实施例中螺旋 3 外壁上还设有紧挨卡环 31 的卡槽 32 ，而中束 4 内壁还设有紧挨卡槽 41 的卡环 42 ，卡环 31 和卡槽 32 的衔接处与卡槽 41 和卡环 42 的衔接处形成相配合垂直台阶结构，如此形成咬合式的配合，能够使螺旋 3 和中束 4 连接更为紧固。以上的卡环或卡槽可以通过冲压的方式成型，为了制造方便，本实施例中的卡槽 41 和卡环 42 通过如下方法成型得到：
首先对中束 4 底部内壁进行冲压，形成一薄壁段 44 ，薄壁段 44 部分向内翻折形成折叠部 45 ，折叠部 45 即构成卡环 42 ，折叠部 45 与中束本体之间的凹槽为卡槽 41 ，而且折叠部 45 的翻折处构成中束 4 的底沿 46 ，中束 4 的底沿 46 有圆弧倒角，有助于装配。
本实施例中，薄壁段 44 与中束本体的壁厚之比为 1/2 ，薄壁段 44 沿中束 4 轴向的高度为 3.5mm ，折叠部（即卡环 42 ）沿中束 4 轴向的高度为 1.4mm ，而卡槽 32 的轴向长度为 1.5mm ，略大于折叠部 45 的长度。
花键 43 和键槽 33 配合形成键槽结构为中束 4 和螺旋 3 提供周向固定，本实施例中，中束 4 内壁上的花键 43 设置在中束 4 的中部，在轴向上的长度占中束 4 长度的 3/4 ，螺旋 3 外壁上键槽 33 的深度为 0.12mm ，数量为 90 个，而花键 43 的数量大大少于键槽 33 的数量，装配更为简便。
叉子 2 的周面上设有一圈片状凸起 22 ，片状凸起 22 在叉子 2 与螺旋 3 之间，且螺旋 3 的内径小于片状凸起 22 的外径，装配完成后，片状凸起 22 由于受螺旋 3 的压迫呈圆弧状，形成对螺旋 3 的涨力，从而使产品在转动时产生一定扭力和滑润感。
综上所述，本发明首先利用轴向布置的键槽结构和周向布置的卡环卡槽结构将螺旋 3 和中束 4 固定配合，省略使用胶水，不仅降低了制造成本，而且可以避免胶水污染珠子 1 上的膏体。

Claims (9)

  1. 一种口红管中束芯，包括珠子（ 1 ）、叉子（ 2 ）、螺旋（ 3 ）和中束（ 4 ），其特征在于，所述螺旋（ 3 ）和中束（ 4 ）之间设有轴向布置的键槽结构和周向布置的卡环卡槽结构。
  2. 如权利要求 1 所述的口红管中束芯，其特征在于，所述键槽结构为花键结构。
  3. 如权利要求 1 所述的口红管中束芯，其特征在于，所述卡环卡槽结构包括设置在螺旋（ 3 ）外壁的第一卡环（ 31 ），以及位于中束（ 4 ）内壁与所述第一卡环（ 31 ）相配合的第一卡槽（ 41 ）。
  4. 如权利要求 3 所述的口红管中束芯，其特征在于，所述螺旋（ 3 ）外壁设有紧挨第一卡环（ 31 ）的第二卡槽（ 32 ），所述中束（ 4 ）内壁设有与所述第二卡槽（ 32 ）配合的第二卡环（ 42 ），所述第二卡环（ 42 ）紧挨第一卡槽（ 41 ）。
  5. 如权利要求 4 所述的口红管中束芯，其特征在于，所述第一卡环（ 31 ）和第二卡槽（ 32 ）的衔接处与第一卡槽（ 41 ）和第二卡环（ 42 ）的衔接处为相配合的直角台阶结构。
  6. 如权利要求 4 所述的口红管中束芯，其特征在于，所述中束（ 4 ）包括中束本体以及连接在中束本体底部的薄壁段（ 44 ），薄壁段（ 44 ）部分向内翻折形成折叠部（ 45 ），折叠部（ 45 ）即构成第二卡环（ 42 ），折叠部（ 45 ）与中束本体之间的凹槽构成第一卡槽（ 41 ）。
  7. 如权利要求 3 所述的口红管中束芯，其特征在于，所述中束（ 4 ）的底沿设有圆弧倒角。
  8. 如权利要求 3 所述的口红管中束芯，其特征在于，所述第一卡环（ 31 ）的顶部设有引导斜面（ 34 ）。
  9. 如权利要求 1 所述的口红管中束芯，其特征在于，所述叉子（ 2 ）的周面上设有一圈片状凸起（ 22 ），所述片状凸起（ 22 ）在叉子（ 2 ）与螺旋（ 3 ）之间，且外径大于螺旋（ 3 ）的内径。
PCT/CN2013/083915 2013-04-10 2013-09-22 一种口红管中束芯 WO2014166212A1 (zh)

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CN203207448U (zh) 2013-09-25
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