JP4620496B2 - Bar-shaped cosmetic container and bar-shaped cosmetic supply container - Google Patents

Description

  The present invention relates to a bar-shaped cosmetic container that accommodates a bar-shaped cosmetic and has a path for the bar-shaped cosmetic to advance and retreat, and a bar-shaped cosmetic supply container including the same.

Conventionally, as a bar-shaped cosmetic feed container, a bar-shaped cosmetic and a bar-shaped cosmetic support (chuck part) that supports the bar-shaped cosmetic are accommodated in a cylindrical hole, and the bar-shaped cosmetic extends from the opening of the cylindrical hole to the vicinity of the opening. It is a rod-shaped cosmetic hole (feeding port) that allows only the advance and retreat of the rod-shaped cosmetic hole, and the rear side from the rear end of the rod-shaped cosmetic hole serves as a path that allows the rod-shaped cosmetic and the rod-shaped cosmetic support to advance and retreat ( A tip tube (tapered container; stick-shaped cosmetic container) that is a centering guide hole) and an operation tube (cover container) that is rotatably connected to the rear end side of the tip tube are provided. A stick-shaped cosmetic feed container is known in which the stick-shaped cosmetic support is advanced and retracted by advancing and retracting holes according to the operation of the screwing mechanism by relative rotation of the cylinder, and the stick-shaped cosmetic supported by the stick-shaped cosmetic support protrudes from the opening at the tip of the front cylinder (For example, refer to Patent Document 1). And in the front tube of this stick-shaped cosmetic material delivery container, the advancing / retreating hole on the rear side of the stick-shaped cosmetic material hole is made larger than the stick-shaped cosmetic material hole by the outer shape of the stick-shaped cosmetic material support body. The diameter of the opening at the tip of the front tube increases toward the front (outside the front tube) in a taper shape so that the bar-shaped cosmetic can be easily inserted from the opening during assembly. It is an opening.
Japanese Patent Laid-Open No. 2004-97549

  Here, the tip tube is generally molded by injection molding (injection molding) using a resin. In this injection molding, an outer mold having an inner peripheral surface having a shape corresponding to the outer peripheral surface of the front tube, and a core pin (inner mold) having an outer peripheral surface having a shape corresponding to the inner peripheral surface of the front tube, Prepared, injecting molten resin between the outer mold and the core pin, after solidification, the core pin is pulled out from the large diameter side and released, and the outer mold is released to obtain the leading cylinder. As described above, the opening at the tip of the front tube and the advance / retreat hole are made larger than the rod-shaped cosmetic hole between them, and the core pin also corresponds to the opening corresponding to the opening of the front tube and the portion corresponding to the advance / retreat hole However, even if the core pin is pulled out from either the front side or the rear side, the portion corresponding to the rod-shaped cosmetic hole between them is enlarged. Therefore, the core pin is divided back and forth with the portion corresponding to the rod-shaped cosmetic hole as a boundary, and a pair of core pins in which the mating surfaces form a plane, but the mating surfaces of this pair of core pins are butted together, after resin injection and solidification, Each core pin is pulled out on the side opposite to the insertion direction.

  However, when injection molding is performed by matching the core pins in this way, in the rod-shaped cosmetic hole where the mating surfaces of these core pins are located, corresponding to the annular minute gap formed on the periphery of the mating surfaces A linear part called a parting line is formed. Specifically, as shown in FIG. 14, the position corresponding to the peripheral edge of the mating surface between the core pins on the inner peripheral surface of the rod-shaped cosmetic hole 300 b between the opening 300 a at the tip and the advance / retreat hole 300 c in the front tube 300. In addition, a linear portion (streak-like swell) 300x that forms an annular shape (annular shape) and projects inward (axially) is formed.

  Since this linear part 300x is in a position close to the outer peripheral surface of the bar-shaped cosmetic to be accommodated, for example, when the external force acts such as impact or vibration due to dropping of the bar-shaped cosmetic feeding container, the bar-shaped cosmetic is When it hits 300x, there is a risk that the surface of the bar-shaped cosmetic material surrounded by the linear portion 300x will be cracked at once, and this surface becomes a broken surface and the bar-shaped cosmetic material breaks.

  The present invention has been made in order to solve such problems, and includes, for example, a bar-shaped cosmetic container that prevents the bar-shaped cosmetic from being bent when an external force acts such as an impact or vibration caused by dropping or the like. An object of the present invention is to provide a stick-shaped cosmetic material feeding container.

The stick-shaped cosmetic container according to the present invention is a stick-shaped cosmetic container that contains a stick-shaped cosmetic and has a path for the stick-shaped cosmetic to advance and retreat, and is an inner peripheral surface of the container that forms the path and is close to the stick-shaped cosmetic. A linear part that is formed in a position to form an annulus and protrudes inward, and the linear part is a parting line that is generated on the mating surface of the molding die during molding using the molding die. The linearity of the part is characterized by being a linear shape that repeatedly enters and exits in the front-rear direction of the route.

  According to such a bar-shaped cosmetic container, the bar-shaped cosmetic is accommodated and formed on the inner peripheral surface of the path for the bar-shaped cosmetic to advance and retreat, in a position close to the bar-shaped cosmetic, thus forming an annular shape. Since the linear portion of the linear portion protruding inward is a linear shape that repeatedly enters and exits in the front-rear direction of the path, for example, the stick-shaped cosmetic is applied when an external force is applied such as impact or vibration due to dropping of the stick-shaped cosmetic feed container. The force due to the linear part acting on the stick-shaped cosmetic in contact with the line-shaped part is dispersed and relaxed in the front-rear direction without acting in a plane due to the linear movement in and out of the linear part. For this reason, generation | occurrence | production of a crack is prevented.

  Moreover, as the linear shape of the linear portion that preferably exhibits the above-described action, specifically, a wavy line shape that repeatedly enters and exits in the front-rear direction of the path is exemplified. Here, the waveform line shape means a pulse wave shape, a sine wave shape, a sawtooth wave shape, or the like.

  Moreover, as a position where the linear part which exhibits the said effect | action suitably is formed, specifically, the vicinity of the opening provided in the front-end | tip of a path | route in order to make a stick-shaped cosmetics appear and disappear from a container front-end | tip is mentioned.

  In addition, as a stick-shaped cosmetic feed-out container that preferably exhibits the above-described action, a front cylinder as a stick-shaped cosmetic container that houses therein a stick-shaped cosmetic support that supports the stick-shaped cosmetic, and a rear cylinder that rotates to the rear end side of this front cylinder A rod-shaped cosmetic support that is supported by the rod-shaped cosmetic support in accordance with the operation of a screwing mechanism by relative rotation of the leading tube and the control tube. The structure which advances and retreats and protrudes and disappears from the opening of the front-end | tip of a tip cylinder is mentioned.

  As described above, according to the present invention, for example, the force due to the linear part acting on the sticky cosmetic when the sticky cosmetic comes into contact when an external force such as an impact or vibration due to dropping or the like is applied enters and exits in the front-rear direction of the linear part. Therefore, it is possible to prevent cracking of the bar-shaped cosmetic material since the crack is prevented from being generated by being dispersed in the front-rear direction without being acted on in a planar manner.

  Hereinafter, a preferred embodiment of a stick-shaped cosmetic supply container provided with a stick-shaped cosmetic container according to the present invention will be described with reference to FIGS. Note that, in each drawing, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a view showing a stick-shaped cosmetic feed-out container, FIGS. 2 and 3 are views of a stick-shaped cosmetic cartridge constituting the stick-shaped cosmetic feed-out container, and FIGS. 4 and 5 are external views of the stick-shaped cosmetic cartridge. Each figure which shows the rod-shaped cosmetic container to comprise, FIGS. 6-10 is each figure which shows the shaping | molding die used when manufacturing a rod-shaped cosmetic container, FIG.11 and FIG.12 is other of a rod-shaped cosmetic container. Each figure showing an example and FIG. 13 are each figure showing another example of the linear portion, and the bar-shaped cosmetic used here is, for example, various types of solids such as eyeliner, eyebrow, lip liner and the like. It is a stick-shaped cosmetic material.

  As shown in FIG. 1, the bar-shaped cosmetic material supply container 100 has an elongated round bar shape (stick shape) like a writing instrument and exhibits a good appearance. As shown in FIG. 3, a cylindrical bar shape As shown in FIG. 1, the stick-shaped cosmetic cartridge 1 for storing the cosmetic M is detachably provided on one end side (the left side in the drawing) of the cartridge storage container 2, and the cartridge cylinder constituting the outer shape of the stick-shaped cosmetic cartridge 1. 3 is a tip cylinder (bar-shaped cosmetic container) of the bar-shaped cosmetic feed container 100, and the cartridge housing container 2 is an operation cylinder of the bar-shaped cosmetic feed-out container 100. It appears from the tip of the tube 3.

  The cartridge housing container 2 has a cylindrical shape, and its rear end side (right end side in the figure) is closed by a lid portion 2a so as to have a bottomed cylindrical shape, and the inside thereof accommodates the latter half portion of the bar-shaped cosmetic cartridge 1. It is a space. An annular groove (not shown) is provided on the inner peripheral surface on the front end side (open side) of the cartridge housing container 2 for locking the stick-shaped cosmetic cartridge 1 in the axial direction in a rotatable manner. Further, an engagement portion (not shown) having a cross-shaped cross section for engaging a screw cylinder 5 (described later) constituting the rod-shaped cosmetic cartridge 1 in the rotation direction is provided inside the lid portion 2a of the cartridge housing container 2. Is provided.

  On the other hand, as shown in FIGS. 2 and 3, the rod-shaped cosmetic cartridge 1 is provided with a cartridge cylinder 3 having a stepped cylindrical shape as an outer configuration, and in the cartridge cylinder 3, as shown in FIG. The bar-shaped cosmetic M, the bar-shaped cosmetic support 4 that supports the bar-shaped cosmetic M, and the screw cylinder 5 constituting the screwing mechanism are accommodated.

  The cartridge cylinder 3 is a resin molded product made of a flexible material such as synthetic resin, for example. As shown in FIG. 1, an outer diameter large diameter portion as a knob portion on the front half side protruding from the cartridge housing container 2, As shown in FIGS. 2 to 4, a rear-side outer diameter small-diameter portion connected to the rear end of the outer-diameter large-diameter portion via a step surface 3 i is provided. The outer diameter large diameter portion has a cylindrical shape in which the outer diameter gradually decreases toward the tip, and the outer diameter small diameter portion is smaller than the inner diameter of the cartridge housing container 2 and can be inserted.

  As shown in FIGS. 3 and 4, the cylindrical hole penetrating in the axial direction of the cartridge cylinder 3 is provided at the front end of the cartridge cylinder 3 and the rear end of the opening 3 a so as to be arranged short on the rear side. A bar-shaped cosmetic hole 3b, an advancing / retracting hole 3c that is connected to the rear end of the bar-shaped cosmetic hole 3b and extends to the center in the axial direction of the cartridge cylinder 3, and a rear end of the advancing / retracting hole 3c. A screw cylinder housing hole 3v extending to the rear end of the cartridge cylinder 3. And these opening 3a, the rod-shaped cosmetic material hole 3b, and the advance / retreat hole 3c comprise the path | route for the said rod-shaped cosmetic material M to advance / retreat while accommodating the rod-shaped cosmetic material M.

  As shown in FIG. 5, the opening 3 a is an opening provided at the tip of the cartridge cylinder 3, and is an opening through which the bar-shaped cosmetic material M appears and disappears, and the diameter increases in a tapered shape toward the front (outside the cartridge cylinder 3). The opening has a circular shape in cross section.

  The bar-shaped cosmetic material hole 3b is a circular hole having the same diameter as the rear end of the opening 3a, and is a hole through which only the bar-shaped cosmetic material M slides.

  As shown in FIGS. 3 to 5, the advancing / retreating hole 3 c is a circular hole having a diameter larger than that of the bar-shaped cosmetic hole 3 b, and a base portion of the bar-shaped cosmetic support 4 that supports the bar-shaped cosmetic M to be described later. 4a and the support part 4b are holes which these accommodate and slide. In two opposing positions on the peripheral surface of the advance / retreat hole 3c, a detent portion 4d (described later) of the bar-shaped cosmetic support 4 is accommodated from the middle of the advance / retreat hole 3c to the rear end of the advance / retreat hole 3c. A detent groove 3w through which the detent portion 4d slides is provided continuously.

  As shown in FIGS. 3 and 4, the screw cylinder accommodation hole 3 v is a circular hole having a larger diameter than the advance / retreat hole 3 c and the rotation stop groove 3 w and accommodates the screw cylinder 5.

  Further, as shown in FIGS. 2 and 4, the cartridge cylinder 3 is provided with elastic engagement portions 3d and 3d at 180 ° symmetrical positions with the axis line sandwiched between the small-diameter outer diameter portions. This elastic engagement portion 3d is for giving good rotational resistance to the cartridge housing container 2 and for detachably engaging with the cartridge housing container 2 in the axial direction, as shown in FIG. A peninsula portion 3f formed by a U-shaped split groove 3e formed in the peripheral wall of the outer diameter and small diameter portion of the cartridge cylinder 3, and serving as a leaf spring according to the flexibility of a synthetic resin as a molding material; A locking protrusion 3g protruding from the outer peripheral surface of the peninsula 3f. Further, as shown in FIG. 4, an annular groove 3 h for engaging the screw cylinder 5 in the axial direction is provided on the inner peripheral surface of the rear end portion of the cartridge cylinder 3.

  Further, as shown in FIGS. 4 and 5, the inner peripheral surface forming the rod-shaped cosmetic hole 3 b of the cartridge cylinder 3 is formed into a ring-shaped linear portion (streak-like shape) that protrudes inward (axially). (Swell) 3x is formed. The linear portion 3x is a feature of the present embodiment, and its linear shape is a linear shape that repeatedly enters and exits in the front-rear direction of the cylindrical hole. In this embodiment, the linear portion 3x has a substantially pulse wave shape (waveform linear shape). The degree of protrusion to the inside is about 1/100 to 2/100 mm. The linear portion 3x will be described later.

  As shown in FIG. 3, the screw cylinder 5 has a substantially cylindrical shape and is formed of a flexible material such as synthetic resin. The screw cylinder 5 is provided with a female screw 5a constituting a screwing mechanism from the front end of the inner peripheral surface to the vicinity of the rear end portion, and at the rear end portion in the radial direction (radial direction). An elastic protrusion 5b that can be elastically pushed open is provided so as to protrude rearward. The elastic protrusions 5b are for engaging with the engaging portion having a substantially cross-shaped cross section provided in the lid portion 2a of the cartridge container 2 in the rotational direction, and are arranged at four equal positions along the circumferential direction. It is the protrusion of the four pieces arrange | positioned. An annular groove 5c is provided at a position corresponding to the elastic engagement portion 3d of the cartridge cylinder 3 on the outer peripheral surface of the screw cylinder 5, and serves as a relief when the peninsula portion 3f is bent inward. On the outer peripheral surface of the rear end portion of the cylinder 5, an annular protrusion 5 d for engaging with the annular groove 3 h of the cartridge cylinder 3 in the axial direction is provided.

  The screw cylinder 5 is inserted into the screw cylinder housing hole 3v of the cartridge cylinder 3 from the front end side thereof, and the annular protrusion 5d engages with the annular groove 3h of the cartridge cylinder 3 so that the cartridge cylinder 3 rotates. It is connected so that it can freely move in the axial direction.

  The bar-shaped cosmetic support 4 is formed of a flexible material such as a synthetic resin, for example. And a support portion 4b for supporting the rear end portion.

  The base 4a has a short disk shape, and the front surface thereof is an abutting surface against which the rear end surface of the bar-shaped cosmetic M is abutted.

  The support portion 4b has a cylindrical shape, is provided so as to protrude forward from the abutting surface of the base portion 4a, and has an outer peripheral surface substantially coinciding with the outer peripheral surface of the base portion 4a. The support portion 4b has an inner peripheral surface substantially coinciding with the outer peripheral surface of the bar-shaped cosmetic M, and fits and supports the rear end portion of the bar-shaped cosmetic M inserted from the front.

  Further, the base 4a is provided with an anti-rotation part 4d that protrudes outward on the outer peripheral surface of the opposing position that is 180 ° apart in the circumferential direction. A columnar shaft body having a smaller diameter than the base portion 4a and extending rearward is integrally provided at the rear end of the base portion 4a, and a screwing mechanism is configured at the rear end portion of the shaft body. A screwing projection 4c as a male screw is provided.

  The bar-shaped cosmetic support 4 having such a configuration is inserted into the cartridge tube 3 from the tip side thereof, and its base portion 4a and support portion 4b enter the advance / retreat hole 3c of the cartridge tube 3 and its detent portion 4d. Enters the rotation stop groove 3w of the cartridge cylinder 3, the shaft body on the rear side of the base portion 4a is inserted into the screw cylinder 5, and the screwing projection 4c engages with the female screw 5a of the screw cylinder 5. Has been. In addition, the front end surface of the rotation prevention groove | channel 3w is made into the advance limit of the rod-shaped cosmetics support body 4 which the front end surface of the rotation prevention part 4d abuts.

  The bar-shaped cosmetic M is inserted into the bar-shaped cosmetic hole 3b and the advance / retreat hole 3c from the rear end side through the opening 3a of the cartridge cylinder 3, and is fitted into the support portion 4b of the bar-shaped cosmetic support 4 accommodated in the advance / retreat hole 3c. While being inserted, it is abutted against the base portion 4a, and its rear end portion is fitted and supported by the support portion 4b.

  The cartridge cylinder 3 has an inner peripheral surface of the bar-shaped cosmetic hole 3b close to the outer peripheral surface of the bar-shaped cosmetic M, and an inner peripheral surface of the advance / retreat hole 3c is an outer periphery of the support portion 4b of the bar-shaped cosmetic support 4 It is set as the structure which adjoins to a surface and the inner peripheral surface of the rotation prevention groove | channel 3w adjoins to the outer peripheral surface of the rotation prevention part 4d of the rod-shaped cosmetics support body 4. FIG. Therefore, the linear portion 3x formed in the bar-shaped cosmetic hole 3b of the cartridge cylinder 3 is close to the bar-shaped cosmetic M.

  The bar-shaped cosmetic cartridge 1 shown in FIGS. 2 and 3 configured as described above is inserted into the cartridge housing container 2 from the rear end side, and the stepped surface 3 i of the cartridge cylinder 3 is located at the front end surface of the cartridge housing container 2. The engaging protrusion 3g of the peninsula 3f that is abutted and forms a leaf spring engages with the annular groove of the cartridge container 2 so that the cartridge container 2 is rotatable and detachable (with a predetermined force by the user). Aside from being pulled out, the cartridge container 2 is mounted so that it cannot move in the axial direction).

  When the bar-shaped cosmetic cartridge 1 is mounted on the cartridge housing container 2, the lid of the cartridge housing container 2 is placed between the elastic projections 5 b and 5 b of the screw cylinder 5 constituting the bar-shaped cosmetic cartridge 1. Engagement is performed so that an engaging portion having a cross shape of a cross section 2a enters, and the screw cylinder 5 and the cartridge housing container 2 are non-rotatably connected. That is, the cartridge cylinder 3 is rotatably connected to the cartridge storage container 2 and the screw cylinder 5.

  In the bar-shaped cosmetic supply container 100 configured as described above, when the cartridge storage container 2 and the protruding portion from the cartridge storage container 2 in the cartridge cylinder 3 of the bar-shaped cosmetic cartridge 1 are rotated relative to each other, the screw cylinder 5, a screwing mechanism constituted by a female protrusion 5 a and a screw projection 4 c of the bar-shaped cosmetic support 4, and a rotation constituted by a rotation-preventing portion 4 d of the bar-shaped cosmetic support 4 and a rotation-preventing groove 3 w of the cartridge cylinder 3. According to the stopping mechanism, the bar-shaped cosmetic support 4 is advanced and retracted through the advance / retreat hole 3 c, and the bar-shaped cosmetic M appears and disappears from the opening 3 a at the tip of the cartridge cylinder 3, thereby enabling application.

  Next, the injection molding for manufacturing the cartridge cylinder 3 constituting the bar-shaped cosmetic cartridge 1 of the bar-shaped cosmetic feeding container 100 and the mold (mold) used therefor will be described.

  First, as shown in FIGS. 6 and 7, as the molds, an upper mold 10a and a lower mold 10b as outer molds having a concave shape 10c corresponding to the outer surface of the cartridge cylinder 3 (see FIG. 4), and FIG. As shown, a stepped columnar core pin 11 as an inner mold having a convex shape corresponding to the cylindrical hole of the cartridge cylinder 3 is prepared.

  Specifically, as shown in FIG. 8, the core pin 11 is provided with a truncated cone shape 11a corresponding to the opening 3a of the cartridge cylinder 3 at the tip, and at the rear end of the truncated cone shape 11a, the rod shape of the cartridge cylinder 3 is provided. A first cylindrical shape 11b corresponding to the cosmetic hole 3b is provided, and a second cylindrical shape 11c corresponding to the advance / retreat hole 3c of the cartridge cylinder 3 is provided at the rear end of the first cylindrical shape 11b. As shown in FIG. 6, a third cylindrical shape 11d corresponding to the screw cylinder accommodating hole 3v of the cartridge cylinder 3 is provided at the rear end of the cylindrical cylinder 11c, and the cartridge cylinder 3 is further provided in the second cylindrical shape 11c. Ridges 11e and 11e corresponding to the non-rotating groove 3w are provided.

  In such a core pin 11, as shown in FIG. 8, the first cylindrical shape 11b corresponding to the rod-shaped cosmetic hole 3b of the cartridge cylinder 3 is interposed, and the front side and the rear side are the first side and the rear side. Since the diameter of the cylindrical pin 11b is larger than the diameter of the cylindrical shape 11b, and the core pin 11 is pulled out from either the front side or the rear side, the core pin 11 has a boundary between the first cylindrical shape 11b. And divided into a front core pin 11y and a rear core pin 11z.

  Here, in the present embodiment, the mating surfaces (divided surfaces) between the core pins are not general mating surfaces between the flat surfaces, but are devised. Specifically, as shown in FIG. 9, the mating surfaces of the core pins 11 y and 11 z are dented from the peripheral edge of the mating surfaces to a predetermined length radially toward the axis and into a predetermined length toward the opposite side of the mating surface. A recess 11p (recessed from the periphery of the mating surface into a substantially rectangular parallelepiped shape) is provided, and therefore, the periphery of the mating surface of the core pins 11y and 11z is configured to have unevenness along the periphery in the axial direction and the axial direction. The core pins 11 are configured by being abutted so that the concavities and convexities of the mating surfaces of these core pins 11y and 11z are coincident with each other. Even if the core pin 11 is manufactured with high accuracy, a minute gap is formed at the periphery of the mating surface of the core pins 11y and 11z. Specifically, as shown in FIG. 8, a minute gap 11x having a substantially pulse wave shape that forms an annular shape and repeatedly enters and exits in the front-rear direction is formed.

  Then, the core pin 11 having such a configuration is set so as to be positioned between the concave shape 10c of the upper die 10a and the concave shape 10c of the lower die 10b as shown in FIGS. A molten resin is injected into a gap formed between the mold 10 a and the lower mold 10 b and the core pin 11, and the molten resin is solidified, so that the cartridge is interposed between the upper mold 10 a and the lower mold 10 b and the core pin 11. The cylinder 3 is formed.

  Next, release is performed. At this time, the front core pin 11y is pulled out to the front side, and the rear core pin 11z is pulled out from the rear side, and each is pulled out from the large-diameter side. A cylinder 3 is obtained.

  In such a cartridge cylinder 3, the above-described linear portion 3x (see FIG. 4) corresponds to the minute gap 11x (see FIG. 8) formed at the peripheral edge of the mating surface of the core pins 11y and 11z. And FIG. 5) are formed (remained) as parting lines.

  When an external force such as impact or vibration is applied by, for example, dropping the stick-shaped cosmetic supply container 100 or the stick-shaped cosmetic cartridge 1 having such a configuration, particularly in the present embodiment, an annular shape is formed. Since the linear portion 3x that protrudes in the vicinity of the bar-shaped cosmetic M has a substantially pulse wave shape that repeatedly enters and exits in the front-rear direction, the bar-shaped cosmetic M comes into contact with the bar-shaped cosmetic M. The force caused by the linear portion 3x acting on the surface is distributed and relaxed in the front-rear direction without acting in a planar manner by the linearity entering and exiting the front-rear direction of the linear portion 3x, thereby preventing the occurrence of cracks. As a result, it is possible to prevent the stick-shaped cosmetic M from being broken.

  Incidentally, conventionally, as described with reference to FIG. 14, the linear portion 300x is formed in an annular shape (annular shape) on one plane, so that when the stick-shaped cosmetic hits the linear portion 300x, the linear portion A crack is formed at once on the surface of the bar-shaped cosmetic material surrounded by 300x, and this surface becomes a fracture surface and the bar-shaped cosmetic material is broken.

  The formation position of the linear portion 3x (position of the mating surfaces of the core pins that are the molds) is not limited to the above position, and as shown in FIG. 11, the opening 3a and the rod-shaped cosmetic hole 3b. And the boundary between the bar-shaped cosmetic hole 3b and the forward / backward hole 3c as shown in FIG. It may be formed straddling the part (the rear end of the bar-shaped cosmetic hole 3b) and the bar-shaped cosmetic hole 3b.

  Further, the linear shape of the linear portion is not limited to the substantially pulse wave shape which is the waveform waveform shape described above. As shown in FIG. 13A, the linear portion 30x having the waveform waveform shape and a substantially sinusoidal shape. As shown in FIG. 13 (b), it may be a substantially sawtooth-shaped linear portion 31x that is a wavy line shape, and as shown in FIG. 13 (c), it is a semicircle. May be a linear linear portion 32x that repeatedly appears in one direction.

  Furthermore, the linear portion is not limited to the configuration extending in the circumferential direction, and as shown in FIG. 13D, the linear portion 33x extending in the elliptical circumferential direction by tilting the linear portion in the axial direction. It is also good. Also in this case, the linear portion 33x has a linear shape that repeatedly enters and exits in the front-rear direction. Incidentally, in order to obtain the linear portion shown in FIGS. 11 to 13, a pair of core pins having a mating surface corresponding to the linear portion is used.

  Although the present invention has been specifically described above based on the embodiment, the present invention is not limited to the above embodiment. For example, in the above embodiment, the screwing mechanism is a rod-shaped cosmetic support 4. The screw projection 4c and the female screw 5a of the screw cylinder 5 are provided, but the screwing mechanism is arranged in a spiral portion, an intermittently arranged projection group, or in a spiral and intermittent manner. As long as it has the same function as the screw thread, such as a group of protrusions.

  Moreover, in the said embodiment, although application with respect to column-shaped stick-shaped cosmetics M is described, it is applicable also to stick-shaped cosmetics with an elliptical cross section.

  The present invention can also be applied to a stick-shaped cosmetic material feeding container that is not a cartridge type as described in, for example, Japanese Utility Model Laid-Open No. 60-33920, and is described in, for example, Japanese Patent Application Laid-Open No. 11-75934. And a control tube that is rotatably connected to the rear end side of the front tube (actually, it is rotatably connected via a middle tube). A rod-shaped cosmetic material that accommodates a support piece that supports the cosmetic material, and is provided with an advance / retreat hole that allows the support piece to advance and retreat, and from the advance / retreat hole to the opening at the tip of the front tube allows only the rod-shaped cosmetic material to advance / retreat. The operation cylinder is provided with a female screw extending in the axial direction on the inner peripheral side thereof, and a push bar disposed on the rear side of the support bar including the support piece is accommodated. The protrusion provided at the end is a female on the inner peripheral side of the operating cylinder. When the tip cylinder and the operating cylinder are rotated relative to each other, the push rod advances and retreats according to the operation of the screw engagement mechanism, and the support rod is pushed by the push rod that moves forward so that the bar-shaped cosmetic material is moved forward. While projecting from the opening at the tip of the cylinder, when the front cylinder and the operating cylinder are relatively rotated in opposite directions, the push bar is retracted according to the operation of the screwing mechanism, and the support bar is operated by the action of the return spring locked to the support bar Is pulled back to the original position in the front tube and the bar-shaped cosmetic material is immersed in the opening at the front end of the front tube. In addition, when the front tube is removed from the operation tube, the support bar is moved into the front tube by the action of the return spring. It can be applied to a bar-shaped cosmetic material feeding container having a structure in which the bar-shaped cosmetic material is pulled back to the original position of the front tube and is immersed from the opening at the tip of the front tube, and further described in, for example, JP-A-2004-97549 A tip cylinder with a slit pipe in the latter half and a slit pie of the tip cylinder An operation cylinder that accommodates the portion and is rotatably connected to the front cylinder, and the front cylinder is provided with an advancing / retracting hole that accommodates the support piece that supports the bar-shaped cosmetic and allows the support piece to advance and retreat. In addition, the bar-shaped cosmetic hole that allows only the bar-shaped cosmetic material to advance and retreat from the advance / retract hole to the opening at the tip of the front tube, and the protrusion provided at the rear end portion of the support bar including the support piece is a slit. It protrudes outward through the slit of the pipe, and this protrusion is screwed into a screw part such as a female screw or a spiral groove formed on the inner peripheral side of the operation cylinder and extending in the axial direction to constitute a screwing mechanism, When the front tube and the operation tube are rotated relative to each other, the support bar advances and retreats in accordance with the operation of the screwing mechanism, and the bar-shaped cosmetic material can be applied to a bar-shaped cosmetic material supply container that protrudes and retracts from the opening at the tip of the front tube. In short, to accommodate the bar-shaped cosmetics and to advance and retreat the bar-shaped cosmetics A bar-shaped cosmetic container having a path and formed in a position adjacent to the bar-shaped cosmetic on the inner peripheral surface of the container forming the path, and having a linear portion projecting inward, such a bar-shaped The present invention can be applied to all stick-shaped cosmetic supply containers provided with a cosmetic container.

It is a perspective view which shows the stick-shaped cosmetics supply container provided with the stick-shaped cosmetics container which concerns on embodiment of this invention. It is a perspective view of a stick-shaped cosmetic cartridge provided with the stick-shaped cosmetic container in FIG. 1 as an outer shape. It is a longitudinal cross-sectional view of the stick-shaped cosmetic cartridge shown in FIG. It is a longitudinal cross-sectional view which shows the rod-shaped cosmetics container in FIG. It is a principal part expanded longitudinal cross-sectional view of the stick-shaped cosmetic container shown in FIG. It is a disassembled perspective view which shows the shaping | molding die used when manufacturing the stick-shaped cosmetics container shown in FIG. It is a perspective view which shows the lower mold | type in FIG. It is a principal part expansion perspective view of the core pin in FIG. It is a disassembled perspective view of the core pin shown in FIG. It is a cross-sectional perspective view which shows the set state of the shaping | molding die shown in FIG. It is a principal part expanded longitudinal cross-sectional view which shows the other example of a rod-shaped cosmetics container. It is a principal part expanded longitudinal cross-sectional view which shows the other example of a rod-shaped cosmetics container. It is each figure which shows the other example of a linear part. It is a longitudinal cross-sectional view which shows the conventional stick-shaped cosmetic container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Stick-shaped cosmetic cartridge, 2 ... Cartridge storage container (operating cylinder), 3 ... Cartridge cylinder (front cylinder; stick-shaped cosmetic container), 3a ... Opening (path | route) of container tip, 3b ... Stick-shaped cosmetic hole (path | route) 3c ... advance / retreat hole (path), 3x, 30x, 31x to 33x ... linear part (parting line), 4 ... bar-shaped cosmetic support, 4a ... base part, 4b ... support part, 4c ... screwing projection (screw) 5a ... female screw (screwing mechanism), 11 ... core pin (molding die), 11y ... front core pin (molding die), 11z ... rear core pin (molding die), 100 ... stick cosmetic delivery container , M ... Stick-shaped cosmetics.

Claims (4)

In a stick-shaped cosmetic container that contains a stick-shaped cosmetic and has a path for the stick-shaped cosmetic to advance and retreat,
It is a container inner peripheral surface that forms the path, and is formed at a position close to the bar-shaped cosmetic material, and includes a linear portion that forms an annular shape and protrudes inward.
The linear portion is a parting line generated on the mating surface of the mold during molding using the mold.
The linear shape of the linear portion is a linear shape that repeatedly enters and exits in the front-rear direction of the path. Linear of the linear portion, the rod-like cosmetic container according to claim 1 Symbol mounting, characterized in that a waveform line shape repeatedly out of the longitudinal direction of the path. The linear portion, claim 1 or 2 SL placing the stick-shaped cosmetic material, characterized in that it is formed in the vicinity of the provided shaped cosmetic material to the tip of the path in order to rise from, the container end opening container. A stick-shaped cosmetic supply container comprising the stick-shaped cosmetic container according to any one of claims 1 to 3 ,
A tip tube as the bar-shaped cosmetic container that accommodates the bar-shaped cosmetic support that supports the bar-shaped cosmetic;
An operation tube rotatably connected to the rear end side of the front tube,
According to the operation of the screwing mechanism by relative rotation of the front tube and the operation tube, the bar-shaped cosmetic support is advanced and retracted, and the bar-shaped cosmetic supported by the bar-shaped cosmetic support is advanced and retracted along the path. A stick-shaped cosmetic material feeding container characterized by appearing from an opening at the tip.

Images