JP4773784B2 - Stick cosmetic cartridge - Google Patents

Description

  The present invention relates to a bar-shaped cosmetic cartridge that allows the bar-shaped cosmetic to appear and disappear from the cartridge.

Conventionally, a bar-shaped cosmetic cartridge for feeding out bar-shaped cosmetics is mounted on one end side of a connecting container that is a cylindrical container, and the other end side is, for example, a liquid cosmetic cartridge or a bar-shaped cosmetic on one end side. There is known a bar-shaped cosmetic material dispensing container having a bar-shaped cosmetic material different from the material, or a bar-shaped cosmetic material feeding container that is equipped with an applicator or the like so as to diversify its application (see, for example, Patent Document 1). ). The bar-shaped cosmetic cartridge constituting the bar-shaped cosmetic feeding container has a core chuck that holds a rear end portion of the bar-shaped cosmetic material at the front end portion thereof and a guide projection as a male screw at the rear end portion thereof, and a core inside thereof. A spiral cylinder having a spiral groove into which the guide protrusion of the chuck is screwed, and a core chuck on the front side of the spiral cylinder are non-rotatable and slidable in the axial direction, and the spiral cylinder is rotatable on the rear side and non-movable in the axial direction. And a cartridge body that accommodates the stick-shaped cosmetic cartridge. The stick-shaped cosmetic cartridge is rotatably and detachably mounted (or not removable) with respect to the connection container. A protrusion (locking portion) that is provided at the portion and protrudes toward the stick-shaped cosmetic cartridge engages with a knurled portion (locking portion) provided inside the rear end portion of the spiral tube, and is screwed. The cylinder is configured to be non-rotatably engaged with the connection container, and the rotation force of the connection container is applied from the rear side. When the connection container and the cartridge body are relatively rotated, the spiral cylinder and the cartridge body are relatively rotated. The core chuck is advanced and retracted by the anti-rotation mechanism composed of the core chuck and the cartridge body, and the screw engagement mechanism composed of the guide protrusion of the core chuck and the spiral groove of the spiral tube, and the bar-shaped cosmetic material protrudes and retracts from the tip of the cartridge body. It is supposed to be configured.
Japanese Utility Model Publication 4-30961

  By the way, in recent years, there is a demand for higher quality for the above-mentioned bar-shaped cosmetic cartridge. For example, even if the bar-shaped cosmetic feeding container is dropped and an impact or vibration is applied, the bar-shaped cosmetic is pulled out or broken. However, there is still no stick-shaped cosmetic cartridge that employs such a mechanism.

  The present invention was made in order to solve such problems, and without losing its feeding function as compared with the prior art, preventing the stick-shaped cosmetic material from slipping out or breaking due to the action of impact or vibration, and quality. An object of the present invention is to provide a stick-shaped cosmetic cartridge having an improved height.

  The bar-shaped cosmetic cartridge according to the present invention includes a screw rod that supports a rear end portion of the bar-shaped cosmetic and includes a male screw on the outside, an inner cylinder including a female screw into which the male screw is screwed, and a screw on the front side. A rod that is non-rotatable and slidable in the axial direction, and an outer cylinder that accommodates the inner cylinder on the rear side thereof, and when the outer cylinder and the inner cylinder are rotated relative to each other, the rod-shaped cosmetic is advanced and retracted. A rod-shaped cosmetic cartridge that protrudes and protrudes from the tip of the cylinder, and the inner cylinder is accommodated in the outer cylinder so as to be rotatable and immovable in the axial direction, and a rotational force is applied from the rear side to rotate relative to the outer cylinder. An inner cylinder, and a front inner cylinder that has a female screw therein, is axially movable with respect to the rear inner cylinder, and is non-rotatably connected to be accommodated in the outer cylinder. Between the inside of the cylinder and the outside of the front inner cylinder, there is an urging means for urging the front inner cylinder rearward. In the screw rod, the shaft body portion extends rearward from the support portion that supports the rear end portion of the bar-shaped cosmetic material, and a male screw is provided outside the shaft body portion. A bulging portion that bulges in the radial direction is provided at the rear end, and when the screw rod is extended, the bulging portion abuts on the female screw of the inner cylinder on the front side so that the screw rod is extended maximum.

  According to such a bar-shaped cosmetic cartridge, the rear inner cylinder is accommodated so as to be rotatable with respect to the outer cylinder and immovable in the axial direction, and a rotational force is applied from the rear side. The cylinder is connected to the rear inner cylinder so as to be axially movable and non-rotatable and is urged rearward by the urging means, and is further accommodated in the outer cylinder. Since the male screw of the screw rod provided with a male screw on the outside and supporting the rear end portion of the bar-shaped cosmetic material is engaged with the female screw inside, a rotational force is applied to the rear inner cylinder from the rear side. When applied, the inner cylinder on the rear side rotates relative to the outer cylinder with the inner cylinder on the front side, and a detent mechanism constituted by the inside of the front side of the outer cylinder and the screw rod, the male screw of the screw rod And the screw mechanism formed by the female screw of the inner cylinder on the front side, the screw rod smoothly advances and retracts, and the bar-shaped cosmetic is removed. When the impact or vibration is applied to the stick-shaped cosmetic supply container equipped with the stick-shaped cosmetic cartridge, the rear inner cylinder does not move in the axial direction, and therefore the rear inner cylinder does not move. On the other hand, the state in which the rotational force is reliably applied from the rear side is maintained, and the front inner cylinder is left with the rear inner cylinder, with a screw rod that is screwed into the front inner cylinder. It moves forward against the urging force of the urging means, and the shock and vibration are absorbed by the forward and urging means buffering action, so that the stick-shaped cosmetic material is prevented from being pulled out and broken. When the impact or vibration disappears, the urging means ejects the front inner cylinder, the front inner cylinder moves backward, and the front inner cylinder and the screw rod are returned to their original positions. Further, the screw rod bulges in a radial direction at the rear end of the male screw of the shaft body portion that extends rearward from the support portion that supports the rear end portion of the bar-shaped cosmetic and has a male screw on the outside. The bulging portion, which is configured to have a portion and is separated from the support portion in the axial direction rearward via the male screw, abuts on the female screw of the inner cylinder on the front side when the screw rod is extended to advance the screw rod to the maximum extent. Since it functions as a limit, when the screw rod reaches the forward limit, almost no load is applied to the support portion, and therefore, breakage and withdrawal of the bar-shaped cosmetic material supported by the support portion are prevented.

  Here, as a configuration that preferably exhibits the above-described action, specifically, the female screw is a screwing protrusion that protrudes in a certain section in a spiral shape, and the screwing protrusion is centered on the axis of the front inner cylinder. The structure provided in two places on the inner peripheral surface of the inner cylinder rotated by 180 °.

  As described above, according to the present invention, the bar-shaped cosmetic material is satisfactorily projected and retracted from the tip of the outer cylinder, and the rod-shaped cosmetic material is prevented from being pulled out or broken when an impact or vibration is applied or the screw rod reaches the forward limit. Therefore, the quality can be improved without deteriorating the payout function as compared with the conventional one.

  Hereinafter, a preferred embodiment of a stick-shaped cosmetic cartridge 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. 1-5 is each figure which shows the stick-shaped cosmetics supply container provided with the stick-shaped cosmetic cartridge, FIG.6 and FIG.7 is each figure which shows the 1st holder of the cartridge storage container which mounts a stick-shaped cosmetic cartridge, FIGS. 8 to 10 are views showing the second holder of the cartridge container, FIGS. 11 to 13 are views showing the main body cylinder of the bar-shaped cosmetic cartridge, and FIGS. 14 to 16 are screw rods. FIGS. 17A and 17B are perspective views showing the front and rear inner cylinders and the compression coil springs, FIGS. 18 to 21 are views showing the front and rear inner cylinders, and FIGS. Each figure which shows an inner cylinder, FIGS. 26-30 is each figure which shows the inner cylinder of the front side, and the stick-shaped cosmetics supply containers provided with the stick-shaped cosmetic cartridge of this embodiment are, for example, an eyeliner, an eyebrow, Various stick-shaped makeups such as lip liners Houses, it is an retractably as needed by the user.

  As shown in FIG. 1, the stick-shaped cosmetic material feeding container 100 has an overall shape of an elongated round stick shape (stick shape) like a writing instrument and exhibits a good appearance. As shown in FIG. 3, the stick-shaped cosmetic material M 2 to 4, the stick-shaped cosmetic cartridge 1 is detachably provided on one end side (left side in the figure) of the cartridge storage container 2, and on the other end side of the cartridge storage container 2, An applicator holder 4 equipped with an applicator (chip in this embodiment) 3 is detachably provided.

  As shown in FIGS. 3 and 4, the cartridge storage container 2 includes a cylindrical shaft cylinder 5 that forms an outer cylinder, a first holder 6 and a second holder 7 that are housed in the shaft cylinder 5 and form an inner cylinder, It is set as the structure which has. The first holder 6 is mounted on one side of the shaft tube 5, and the second holder 7 is mounted on the other side of the shaft tube 5.

  The 1st holder 6 consists of flexible materials, such as a synthetic resin, for example, and is comprised by the substantially cylindrical shape as shown in FIG.6 and FIG.7. The first holder 6 is provided with a large-diameter collar 6a at the tip (left end in the drawing). Further, the first holder 6 is provided with a knurling 6b on the outer peripheral surface on the front end side thereof, in which unevenness is densely arranged along the circumferential direction and extending a predetermined length in the axial direction for mounting on the shaft cylinder 5. The elastic locking portions 6c and 6c are respectively provided at 180 ° symmetrical positions sandwiching the axis on the rear side.

  This elastic locking portion 6c is formed by a U-shaped split groove 6d drilled in the peripheral wall of the first holder 6, and a peninsula portion that functions as a leaf spring in accordance with the flexibility of a synthetic resin or the like that is a molding material 6e and a locking projection 6f protruding outward from the outer peripheral surface of the peninsula 6e. Further, the first holder 6 is provided with an annular protrusion 6g on the inner peripheral surface on the tip end side for locking the main body cylinder 10 of the bar-shaped cosmetic cartridge 1 in the axial direction.

  The first holder 6 is press-fitted into the shaft cylinder 5 from the rear side thereof, and as shown in FIGS. 3 and 4, the flange portion 6a abuts on one end surface (the left end surface in the drawing) of the shaft cylinder 5, and the knurl 6b Is in pressure contact with the inner peripheral surface of the shaft tube 5 and, in addition, the locking projection 6f of the peninsula portion 6e forming the leaf spring presses and locks with the inner peripheral surface of the shaft tube 5 so that the shaft tube 5 cannot rotate. It is mounted so that it cannot move in the axial direction. In addition, the latching protrusion 6f of the peninsula part 6e which comprises a leaf | plate spring functions as a substitute when the function of the knurl 6b falls. In this state, the peninsula portion 6e bends inward (axial side) by press-contact locking between the locking projection 6f and the inner peripheral surface of the shaft cylinder 5, and is slightly inward from the inner peripheral surface of the first holder 6. It is in a state of protruding.

  The second holder 7 is made of, for example, a flexible material such as synthetic resin, and is configured in a stepped cylindrical shape as shown in FIGS. 8 to 10, and the rear end side (the left side in the drawing) is an outer diameter small diameter portion 7 y. The distal end side (the right side in the figure) is the outer diameter large diameter portion 7z. The second holder 7 is provided with a large-diameter flange portion 7a at the tip of the outer-diameter large-diameter portion 7z, and a circular shape is provided on the outer peripheral surface of the outer-diameter large-diameter portion 7z on the rear side of the flange portion 7a. Knurls 7 b are provided for mounting on the shaft tube 5, with unevenness closely arranged along the circumferential direction and extending a predetermined length in the axial direction.

  The second holder 7 is provided with a large-diameter collar 7c that functions as a retainer for the second holder 7 at the rear end of the outer-diameter small-diameter portion 7y. An engaging portion 7d that protrudes rearward is provided on the end surface. This engaging portion 7d is for engaging the inner cylinder 12 on the rear side of the bar-shaped cosmetic cartridge 1 in the rotational direction (details will be described later), and as shown in FIGS. As shown in FIG. 9, a plurality of protrusions 7x having a triangular cross section extending in the axial direction are provided on the outer circumferential surface of the shaft body having a predetermined length in the circumferential direction (eight in this embodiment). ing. Further, as shown in FIG. 10, the second holder 7 is provided with a female screw 7f on the inner peripheral surface on the tip end side for detachably mounting the applicator holder 4.

  The second holder 7 is press-fitted into the shaft cylinder 5 from the rear side thereof, and as shown in FIGS. 3 and 4, the flange portion 7a abuts against the other end surface (right end surface in the drawing) of the shaft cylinder 5, and the knurl 7b Is in pressure contact with the inner peripheral surface of the shaft cylinder 5, so that it is mounted on the shaft cylinder 5 so as not to rotate but to move in the axial direction. In this state, the bent portion toward the inside of the peninsula 6e of the first holder 6 prevents the movement toward the tip side (right side in the drawing) from the flange portion 7c of the second holder 7 to the tip side (right side in the drawing). The bent portion of the peninsula 6e and the flange 7c of the second holder 7 prevent the second holder 7 from coming off when the function of the knurl 7b is reduced.

  The applicator holder 4 is formed by mounting the applicator 3 on the tip side. A collar portion 4a is provided in the middle of the outer peripheral surface of the applicator holder 4 in the axial direction, and a male screw 4f that engages with the female screw 7f of the second holder 7 is provided on the outer peripheral surface on the rear side of the collar portion 4a. Is provided. Further, as shown in FIGS. 2 to 4, a protrusion (so-called dowel) 4 e for detachably mounting the cap 8 is provided at a position on the distal end side from the flange portion 4 a on the outer peripheral surface of the applicator holder 4. A plurality are provided apart from each other along the circumferential direction.

  As shown in FIGS. 3 and 4, the applicator holder 4 to which the applicator 3 is attached is inserted into the second holder 7, and the male screw 4 f is screwed into the female screw 7 f of the second holder 7. The collar portion 4 a abuts against the collar portion 7 a of the second holder 7, so that the collar portion 4 a is detachably attached to the second holder 7. Further, the cap 8 that covers and protects the applicator 3 is detachably attached to the applicator holder 4 by the inner peripheral surface thereof coming into contact with the protrusion 4e of the applicator holder 4 as shown in FIG. It is installed.

  On the other hand, as shown in FIG. 5, the bar-shaped cosmetic cartridge 1 is generally formed into a substantially cylindrical shape and a main body cylinder 10 as an outer cylinder extending in the axial direction, and a female screw housed in the main body cylinder 10 and constituting a screwing mechanism. A main body cylinder, and an inner cylinder 11 which is accommodated in the main body cylinder 10 and extends in the axial direction, and supports a bar-shaped cosmetic M at the tip and has a male screw 14 constituting a screwing mechanism. When the 10 and the inner cylinder 11 are rotated relative to each other, the screw rod 14 advances and retreats, and the bar-shaped cosmetic M appears and disappears from the tip of the main body cylinder 10. In addition, the rod-shaped cosmetic M used here is a rod-shaped cosmetic having an elliptical cross section.

  The main body cylinder 10 protrudes from the tip of the cartridge housing container 2 as a knob, and has a tip part that is a slightly flat cylindrical shape (elliptical cylinder shape) as shown in FIG. 13 and the tip part as shown in FIG. The outer peripheral surface has a small diameter through an outer peripheral step surface 10a, and is formed in a stepped cylindrical shape including a substantially cylindrical shape and an accommodating portion accommodated in the cartridge accommodating container 2.

  As shown in FIGS. 11 and 12, the distal end portion of the main body cylinder 10 has a tapered shape in which the outer diameter gradually decreases toward the distal end, and the accommodating portion is disposed on the outer circumferential surface near the outer circumferential step surface 10a. 2 is provided with a plurality of protrusions (so-called dowels) 10b that are detachably locked in the axial direction in the circumferential direction, and an annular groove 10c is provided at a position between the protrusion 10b and the outer circumferential step surface 10a. . The annular groove 10c is provided with rotational resistance between the first holder 6 of the cartridge container 2 and the main body cylinder 10 of the rod-shaped cosmetic cartridge 1, and in the radial direction of the rod-shaped cosmetic cartridge 1 in the cartridge container 2. An O-ring 15 for preventing rattling is mounted (see FIG. 5).

  As shown in FIG. 12, the cylindrical hole penetrating in the axial direction of the main body cylinder 10 is an elliptical hole 10d that accommodates an elliptical bar-shaped cosmetic material M and allows sliding from the tip to the central area in the axial direction. (Refer to FIG. 13) From the end of the elliptical hole 10d to the rear end of the main body cylinder 10 is a circular hole 10p having a larger diameter than the elliptical hole 10d. The circular hole 10p is provided with an inner peripheral step surface 10e in the middle of the axial direction, and the rear end side through the inner peripheral step surface 10e has a large diameter. The large-diameter circular hole is provided with an annular groove 10f on the rear end side for engaging the rear inner cylinder 12 constituting the inner cylinder 11 in the axial direction.

  As shown in FIGS. 12 and 13, there are a plurality of screws (four in the present embodiment) around the elliptical hole 10 d extending from the vicinity of the tip of the elliptical hole 10 d to the rear end of the elliptical hole 10 d. An advancing / retreating groove 10g that accommodates a sliding piece 14d, which will be described later, of the rod 14 and is slidable is continuously provided.

  As shown in FIG. 3, the screw rod 14 includes a support portion 14 a accommodated in the advance / retreat hole 10 h of the main body cylinder 10 and a shaft body portion 14 b mainly accommodated in the inner cylinder 11. The support portion 14a supports the rear end portion of the bar-shaped cosmetic M and advances and retreats the advance / retreat hole 10h. As shown in FIGS. 14 and 15, the short elliptical column against which the rear end surface of the bar-shaped cosmetic M is abutted is supported. An outer peripheral surface of the rear end portion of the bar-shaped cosmetic material M provided to protrude toward the front end side at a plurality of circumferential positions (four locations in the present embodiment) of the outer peripheral surface of the base portion 14c. 14d between the inner peripheral surfaces of the support piece 14d and supporting the support piece 14d. Moreover, as shown in FIG. 15, the protrusion 14i extended in an axial direction is provided in each inner surface of the support piece 14d. The protrusions 14i are recessed into the outer peripheral surface of the bar-shaped cosmetic M to be inserted to increase the contact area with the bar-shaped cosmetic M and increase the frictional resistance to prevent the bar-shaped cosmetic M from slipping out. This is to prevent rotation.

  As shown in FIG. 14, the shaft body portion 14 b has a cylindrical shaft portion 14 e at the tip, and an outer peripheral surface near the rear end from the shaft portion 14 e is a male screw 14 f constituting a screwing mechanism. ing. Further, as shown in FIGS. 14 and 16, a bulging portion 14g having a cylindrical shape larger in diameter than the rear end of the male screw 14f is provided on the rear side of the male screw 14f of the shaft body portion 14b. ing. This bulging portion 14g functions as a forward limit that makes contact with female screws 13x and 13x of the inner cylinder 13 on the front side, which will be described later, when the screw rod 14 is advanced to advance so that the screw rod 14 is extended maximum.

  3, 4, and 13, the screw rod 14 has a base portion 14 c that is slidably inserted into an elliptical hole 10 d of the main body cylinder 10, and a support piece 14 d that is an advancing / retreating groove of the main body cylinder 10. The outer peripheral surface of the bar-shaped cosmetic M and the base portion 14c is close to the inner peripheral surface of the elliptical hole 10d, and the outer peripheral surface of the support piece 14d is close to the advance / retreat groove 10g. Yes.

  As shown in FIG. 5, the position of the front end surface 10gg of the advance / retreat groove 10g is such that a predetermined gap z is provided between the front end surface of the support piece 14d of the screw rod 14 when the screw rod 14 is fully extended. Is set.

  Here, the inner cylinder 11 that is particularly characteristic of the present embodiment includes an inner cylinder 12 on the rear side in the axial direction and an inner cylinder 13 on the front side, as shown in FIGS. These rear and front inner cylinders 12 and 13 are made of a flexible material such as synthetic resin.

  The inner cylinder 13 on the front side has a substantially cylindrical shape as shown in FIGS. 26 to 30, and a female screw constituting a screwing mechanism as shown in FIGS. 27 to 30 on the inner peripheral surface of the tip portion. 13x. The female screw 13x is a screwed protrusion that protrudes in a certain section in a spiral shape, and the screwed protrusion 13x is formed at two locations on the inner peripheral surface of the inner cylinder that is rotated by 180 ° about the axis of the inner cylinder 13 on the front side. Is provided.

  As shown in FIG. 21 and FIGS. 27 to 30, the front inner cylinder 13 is provided with slits 13 a extending in the axial direction in the rear half thereof at positions facing each other at 180 ° in the circumferential direction. In order to form the slits 13a, 13a, extending walls 13b, 13b extending in the axial direction are provided on both sides in the circumferential direction of the slit 13a. These slits 13a and extending walls 13b are for engaging the rear inner cylinder 12 in the rotational direction, and the extending walls 13b have inner and outer peripheral surfaces as shown in FIG. The cross section has a substantially sector shape with a circular arc surface and an outer peripheral surface that is longer than the inner peripheral surface.

  Further, as shown in FIGS. 21, 26 to 28, and 30, the inner tube 13 on the front side has an annular shape that connects the rear end portions of the extending walls 13 b along the circumferential direction. An annular portion 13c is provided. The annular portion 13c connects the outer peripheral surface of the extending wall 13b from the outside. Accordingly, as shown in FIGS. 21, 27 and 28, the annular portion 13c has a groove 13d which is continuous with the slit 13a in the axial direction and opened to the rear side, as shown in FIGS. Moreover, as shown in FIG. 27, the extension wall 13b is located on both sides of the groove 13d of the annular portion 13c.

  Further, as shown in FIGS. 18, 26, 28 and 30, the front inner cylinder 13 has a slit 13m extending from the tip thereof to the rear of the screwing protrusion 13x and communicating with the inside and the outside. A pair is provided between 13x and 13x. The function of this slit 13m will be described later.

  On the other hand, as shown in FIGS. 21 to 24, the inner cylinder 12 on the rear side includes slits 12a extending in the axial direction and opened on the front side at the front side thereof, as shown in FIGS. In order to form these slits 12a and 12a, extending walls 12b and 12b extending in the axial direction are provided on both sides in the circumferential direction of the slit 12a. These slits 12a and extending walls 12b are arranged at the same radius as the extending walls 13b and slits 13a of the inner cylinder 13 on the front side, and the extending wall 12b has an inner circumference as shown in FIG. The cross-sectional shape is substantially the same as that of the extending wall 13b of the inner cylinder 13 on the front side, and the surface and outer peripheral surface are arcuate and the outer peripheral surface is longer than the inner peripheral surface. ing. The extension wall 12b of the rear inner cylinder 12 can enter the slit 13a in the axial direction through the groove 13d of the annular portion 13c of the front inner cylinder 13, and the slit of the rear inner cylinder 12 can be made. 12a enables the axial movement of the extending wall 13b of the inner cylinder 13 on the front side.

  Further, as shown in FIGS. 22, 24, and 25, the rear inner cylinder 12 has an elastic protrusion 12 c that can be elastically pushed open in the radial direction so as to protrude rearward. Is provided. This elastic protrusion 12c is for engaging with the protrusion 7x of the engaging part 7d of the second holder 7 in the rotational direction. The elastic protrusions 12c are four pieces of protrusions disposed at four equal positions along the circumferential direction (positions at intervals of 90 °). As shown in FIGS. A groove 12d extending in the V-shaped axial direction into which the triangular chevron-shaped protrusion 7x of the second holder 7 enters is provided at the top facing inward. Further, as shown in FIGS. 22 and 24, the outer peripheral surface between the extending wall 12 b and the elastic protrusion 12 c in the axial direction of the rear inner cylinder 12 is axially formed in the annular groove 10 f of the main body cylinder 10. An annular protrusion 12e is provided for engaging with.

  In these rear and front inner cylinders 12 and 13, as shown in FIGS. 18 to 21, the extending wall 12 b of the rear inner cylinder 12 is formed by the annular portion 13 c of the front inner cylinder 13. While entering the slit 13a through the groove 13d, the extending wall 13b of the front inner cylinder 13 enters the slit 12a of the rear inner cylinder 12, and is connected so as to be unrotatable and movable in the axial direction.

  As shown in FIG. 5, the inner cylinder 11 composed of the rear and front inner cylinders 12 and 13 is inserted into the main body cylinder 10 from the front side, and the annular protrusion 12e of the rear inner cylinder 12 is inserted. However, by engaging with the annular groove 10f of the main body cylinder 10, the rear inner cylinder 12 is mounted so as to be rotatable with respect to the main body cylinder 10 and not movable in the axial direction.

  In this state, the male screw 14f of the screw rod 14 is inserted into the inner cylinder 11 from the front side, and the male screw 14f is inserted into the female screws 13x and 13x of the front inner cylinder 13 as shown in FIG. The engaged state is screwed. That is, the screw rod 14 is screwed with the inner cylinder 13 on the front side.

  Further, in this state, the compression coil spring 16 is disposed between the inner peripheral step surface 10e of the main body cylinder 10 and the front end face of the annular portion 13c of the front inner cylinder 13 in the rear and rear portions of the front inner cylinder 13. It arrange | positions so that the front half part of the side inner cylinder 12 may be enclosed (refer FIG.5 and FIG.17). Due to the urging force of the compression coil spring 16, the front inner cylinder 13 is pressed against the rear inner cylinder 12, and is in a state of being located at the retreat limit shown in FIG.

  When assembling the bar-shaped cosmetic cartridge 1 having such a configuration, first, the compression coil spring 16 is extrapolated from the rear side of the screw rod 14, and then the rear and front inner cylinders 12 and 13 are inserted into the respective slits on the other side. Then, the assembled inner cylinder 11 and the screw rod 14 surrounded by the compression coil spring 16 are screwed together and screwed.

  Here, when the screw rod 14 is to be screwed into the front inner cylinder 13, the bulging portion 14 g at the rear end of the screw rod 14 abuts against the screw projection 13 x of the front inner cylinder 13. By the slit 13m of the front inner cylinder 13, the front end side of the front inner cylinder 13 opens radially outward, and the bulging portion 14g of the screw rod 14 enters the rear side beyond the screwing protrusions 13x and 13x, and the screw. The male screw 14f of the rod 14 is screwed into the screwing protrusions 13x and 13x. In this screwed state, the screw rod 14 is screwed to the retreat limit. Then, these assemblies are inserted and incorporated from the rear side of the main body cylinder 10, and finally the bar-shaped cosmetic M is inserted from the front side of the main body cylinder 10 and attached to the screw bar 14.

  Then, as shown in FIGS. 3 and 5, the stick-shaped cosmetic cartridge 1 obtained in this way is inserted into the opening on the one end side of the cartridge housing container 2 from the rear portion, and the outer periphery of the main body cylinder 10. The step surface 10 a comes into contact with the end surface of the flange 6 a of the first holder 6 of the cartridge container 2, and the O-ring 15 and the protrusion 10 b of the main body cylinder 10 are the inner peripheral surface of the first holder 6 of the cartridge container 2. And the annular protrusion 6g of the first holder 6 of the cartridge housing container 2 is positioned on the front side of the protrusion 10b of the main body cylinder 10, so that the main body cylinder 10 is rotated with respect to the cartridge housing container 2. In addition to being connected to each other, for example, when the bar-shaped cosmetic M has reached its end of use and needs to be replaced for each bar-shaped cosmetic cartridge 1, the cartridge is pulled out with a predetermined force by the user. There is a axial immovable with respect to container 2.

  In a state where the stick-shaped cosmetic cartridge 1 is mounted in the cartridge housing container 2, the elastic projections 12c, 12c of the inner cylinder 12 on the rear side of the stick-shaped cosmetic cartridge 1 and the elastic protrusions 12c. The triangular chevron-shaped protrusion 7x of the second holder 7 of the cartridge container 2 enters and engages with the V-shaped groove 12d, and the rear inner cylinder 12 and the cartridge container 2 are non-rotatably connected. Has been.

  In the bar-shaped cosmetic material supply container 100 configured as described above, when the cartridge storage container 2 and the protruding portion from the cartridge storage container 2 of the main body cylinder 10 of the bar-shaped cosmetic cartridge 1 are relatively rotated, the cartridge storage container 2 and the rear inner cylinder 12 are non-rotatably connected, the rear inner cylinder 12 and the front inner cylinder 13 are non-rotatably connected, and further, a screw projection 13x of the front inner cylinder 13 and Since the male screw 14f of the screw rod 14 constitutes a screwing mechanism, and the support piece 14d of the screw rod 14 and the advance / retreat groove 10g of the main body cylinder 10 constitute a rotation preventing mechanism, the screw rod 14 advances and retreats smoothly. Application | coating is enabled because the rod-shaped cosmetics M protrude from the front-end | tip of the main body cylinder 10. FIG.

  Here, the screw rod 14 continues to advance, and the bulging portion 14g (see FIG. 16) of the screw rod 14 abuts (contacts) the screw projection 13x of the front inner cylinder 13 as shown in FIG. This is the maximum extension of the screw rod 14. That is, the protruding portion 14g of the screw rod 14 abuts against the screw projection 13x of the front inner cylinder 13 so that the screw rod 14 reaches the forward limit.

  At this time, a predetermined gap z exists between the tip of the support piece 14d supporting the bar-shaped cosmetic material M in the screw rod 14 and the tip surface 10gg of the advance / retreat groove 10g, and the tip of the support piece 14d It is not in contact with the tip surface 10gg of the advance / retreat groove 10g.

  In this manner, the bulging portion 14g positioned away from the support portion 14a having the support piece 14d in the axial direction rearward via the male screw 14f contacts the screw projection 13x of the front inner cylinder 13 when the screw rod 14 is extended. The contact portion 14a functions as a forward limit for the maximum extension of the screw rod 14, and the support portion 14a (particularly the support piece 14d) is not limited to the forward limit and does not contact the tip surface 10gg of the advance / retreat groove 10g. When 14 reaches the forward limit, almost no load is applied to the support portion 14d, and the rod-shaped cosmetic M supported by the support portion 14d is prevented from being broken or pulled out.

  Further, when the screw rod 14 reaches the advance / retreat limit of the forward limit or the reverse limit, and the relative rotational force in the same direction is applied to the screw rod 14 by the user, the elastic protrusion 12c at the rear end of the rear inner cylinder 12 is provided. Can be elastically pushed open in the radial direction, so that the elastic protrusion 12c repeats the operation of overcoming the protrusion 7x having a triangular cross section of the second holder 7 and engaging with the adjacent protrusion 7x. As a result, the component is prevented from being overloaded and the component is prevented from being damaged.

  Further, in such a bar-shaped cosmetic material supply container 100, for example, even if the bar-shaped cosmetic material supply container 100 is dropped and an impact or vibration is applied, the cartridge housing container 2 and the rear inner cylinder 12 are used. Are connected so as not to move in the axial direction, and the inner cylinder 12 on the rear side and the inner cylinder 13 on the front side are connected so as not to be rotatable and movable in the axial direction, so that the inner cylinder 12 on the rear side moves in the axial direction. Accordingly, the state in which the rotational force is reliably applied from the rear side to the rear inner cylinder 12 is maintained, and the front inner cylinder 13 is left in the state where the rear inner cylinder 12 is left. Along with the screw rod 14 screwed into the front inner cylinder 13, the compression coil spring 16 is advanced against the urging force of the compression coil spring 16, and at this time, the front inner cylinder 13 has its extension wall. 13b does not slide in the slit 12a of the inner cylinder 12 on the rear side. And al forward, the forward and impact or vibration is absorbed by the compression action of the compression coil spring 16, escape and breakage of the threaded rod 14 of the rod-like cosmetic material M is prevented. When the impact disappears, the compression coil spring 16 repels the front inner cylinder 13, and the front inner cylinder 13 moves backward while its extension wall 13b slides on the slit 12a of the rear inner cylinder 12, The front inner cylinder 13 and the screw rod 14 are returned to their original positions.

  As described above, in the present embodiment, the stick-shaped cosmetic material M appears and disappears well from the tip of the main body cylinder 10, and when the impact or vibration is applied or when the screw rod 14 reaches the forward limit, Pull-out and breakage are prevented. As a result, it is possible to provide the bar-shaped cosmetic cartridge 1 that does not impair the feeding function as compared with the conventional one and that has an improved quality.

  Moreover, in this embodiment, since it has the annular part 13c which connects the front-end | tip part of each extension wall 13b of the front inner cylinder 13 along the circumferential direction, each extension is carried out by the said annular part 13c. The wall 13b is reinforced, and the movement (falling) in the thickness direction (inner side and outer side) of each extending wall 13b is well restricted. As a result, interference between the extension wall 13b and the male screw 14f of the screw rod 14 arranged inside the extension wall 13b is prevented, and the desired movement of the screw rod 14 is ensured and the extension Interference between the wall 13b and the compression coil spring 16 arranged outside the extension wall 13b is prevented, and a desired movement of the compression coil spring 16 is ensured.

  Furthermore, a slit 13a formed between the extending walls 13b, 13b of the front inner cylinder 13 and an extending wall 12b of the rear inner cylinder 12 entering the slit 13a are provided on the extending wall 12b. The shape that restrains the inward movement (falling), specifically, the inner and outer peripheral surfaces are arcuate surfaces, and the cross section is generally sector-shaped with the outer peripheral surface being longer than the inner peripheral surface. Therefore, interference between the male screw 14f of the screw rod 14 arranged inside the extension wall 12b and the extension wall 12b is prevented, and the desired movement of the screw rod 14 is further ensured.

  As described above, the present invention has been specifically described based on the embodiment. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the extension wall 13b of the inner cylinder 13 on the front side is not limited. An annular portion 13c is provided to increase the rigidity, but the annular portion 13c of the inner cylinder 13 on the front side is eliminated, and an annular portion similar to the annular portion 13c is provided at the tip of the extending wall 12b of the rear inner cylinder 12 These outer peripheral surfaces may be provided so as to be connected in the circumferential direction, and the rigidity of the extending wall 12b of the rear inner cylinder 12 may be increased. Moreover, if the rigidity of the extending walls 13b and 12b of the front and rear inner cylinders is high, the annular portion may be omitted.

  Moreover, in the said embodiment, although the slit 13a and the extension wall 12b are made into cross-sectional substantially sector shape, it is trying to prevent the movement inside the extension wall 12b, but the shape which reversed this cross-sectional substantially sector shape The outer wall of the extension wall 12b may be prevented from falling and interference with the compression coil spring 16 may be prevented, and the thickness direction of the extension wall 12b may be such that the center bulges like an abacus bead. It is good also as a structure which restrains the movement of (inner side and outer side). When the annular portion 13c of the front inner cylinder 13 is eliminated and the annular portion is provided in the rear inner cylinder 12, the front inner cylinder is formed by the slit 12a and the extending wall 12b of the rear inner cylinder 12. 13 is prevented from moving inwardly and / or outwardly from the extending wall 13b, and when no annular portion is provided in the inner cylinders 12, 13 on both the rear side and the front side, The extension wall prevents the other extension wall from moving inside and / or outside.

  Moreover, in the said embodiment, although stick-shaped cosmetic cartridge 1 is replaced | exchanged, rod-shaped cosmetic cartridge 1 is made detachable with respect to the cartridge storage container 2, but of course it is also possible to make it non-detachable.

  Moreover, in the said embodiment, although the cross section has described the application with respect to the rod-shaped cosmetic M with an elliptical shape, of course, it is applicable also to the rod-shaped cosmetic with a cross-sectional circular shape. The elliptical hole 10d may be a circular hole, and the base part 14c of the support part 14a may be cylindrical.

  Moreover, in the said embodiment, in order to shorten the rod-shaped cosmetic cartridge 1, the compression coil spring 16 is provided between the inside of the main body cylinder 10 and the outside of the rear end portion of the front inner cylinder 13, that is, the main body cylinder. 10 between the inner peripheral step surface 10e and the front end surface of the annular portion 13c of the front inner cylinder 13, for example, between the inside of the main body cylinder 10 and the front end surface of the front inner cylinder 13 The point is that the compression coil spring 16 only needs to be able to urge the front inner cylinder 13 rearward. Further, the biasing of the front inner cylinder 13 to the rear side is not limited to the compression coil spring 16, and any biasing means that exhibits substantially the same function as the compression coil spring 16 may be used. It may be a tension spring that urges the inner cylinder 13 to the rear side, and may be a resin spring made of, for example, resin.

  Moreover, in the said embodiment, although the screwing mechanism is comprised by the male screw 14f of the screw rod 14, and the screwing protrusion 13x of the inner cylinder 13 of the front side, a screwing mechanism is a helical part or intermittent. As long as it functions like a screw thread, such as a group of protrusions arranged in a row, or a group of protrusions arranged in a spiral shape and intermittently, it suffices.

It is a side view which shows the stick-shaped cosmetics delivery container provided with the stick-shaped cosmetics cartridge which concerns on embodiment of this invention. It is the figure which removed the cap of the applicator of the stick-shaped cosmetic material supply container shown in FIG. It is a longitudinal cross-sectional view of the stick-shaped cosmetic material delivery container shown in FIG. 1, and is a state diagram before feeding the stick-shaped cosmetic material. FIG. 4 is an orthogonal vertical cross-sectional view of the bar-shaped cosmetic material supply container shown in FIG. It is an expanded longitudinal cross-sectional view of the stick-shaped cosmetics cartridge of the stick-shaped cosmetics supply container shown in FIG. It is a side view which shows the 1st holder in FIG.3 and FIG.4. It is a VII-VII arrow line view of FIG. It is a side view which shows the 2nd holder in FIG.3 and FIG.4. It is a left view of the 2nd holder shown in FIG. It is a longitudinal cross-sectional view of the 2nd holder shown in FIG. It is a side view which shows the main body cylinder which comprises the stick-shaped cosmetics cartridge in FIGS. It is a longitudinal cross-sectional view of the main body cylinder shown in FIG. It is a XIII-XIII arrow line view of FIG. It is a side view which shows the screw rod in FIGS. It is a left view of the screw rod shown in FIG. It is an enlarged view of the rear-end part of the screw rod shown in FIG. It is a perspective view which shows the inner cylinder and compression coil spring of the front side and rear side in FIG. It is a perspective view which shows the inner cylinder of the front side and rear side in FIG. It is a vertical perspective view of the inner cylinder shown in FIG. It is a disassembled perspective view of the inner cylinder shown in FIG. It is the perspective view which looked at FIG. 20 from the axial direction opposite side. It is a side view which shows the inner cylinder of the rear side in FIGS. FIG. 23 is a left side view of the rear inner cylinder shown in FIG. 22. FIG. 23 is an orthogonal longitudinal sectional view of a rear inner cylinder shown in FIG. 22. FIG. 25 is a right side view of the rear inner cylinder shown in FIG. 24. It is a side view which shows the inner cylinder of the front side in FIGS. FIG. 27 is a right side view of the front inner cylinder shown in FIG. 26. It is a longitudinal cross-sectional view of the front inner cylinder shown in FIG. It is a XXIX-XXIX arrow directional view of FIG. FIG. 29 is an orthogonal longitudinal sectional view of the front inner cylinder shown in FIG. 28.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Stick-shaped cosmetic cartridge, 10 ... Main body cylinder (outer cylinder), 11 ... Inner cylinder, 12 ... Rear side inner cylinder, 13 ... Front side inner cylinder, 13x ... Screwing protrusion (front side inner cylinder) Female screw), 14 ... screw rod, 14a ... support portion, 14b ... shaft body portion, 14d ... support piece, 14f ... male screw of screw rod, 14g ... bulge portion, 16 ... compression coil spring (biasing means) , 100 ... Bar-shaped cosmetic feed-out container, M ... Bar-shaped cosmetic.

Claims (2)

A screw rod that supports the rear end portion of the bar-shaped cosmetic material and has a male screw on the outside, an inner cylinder that has a female screw inside which the male screw is screwed, and a screw rod that cannot be rotated on the front side and is axial An outer cylinder that accommodates the inner cylinder on the rear side of the outer cylinder, and when the outer cylinder and the inner cylinder are relatively rotated, the bar-shaped cosmetic material advances and retreats. A stick-shaped cosmetic cartridge that appears and disappears from the tip,
The inner cylinder is
A rear inner cylinder which is accommodated in the outer cylinder so as to be rotatable and immovable in the axial direction and is rotated relative to the outer cylinder by applying a rotational force from the rear side;
A front inner cylinder that has the female screw therein, is axially movable and non-rotatably connected to the rear inner cylinder, and is accommodated in the outer cylinder;
Between the inside of the outer cylinder and the outside of the front inner cylinder, a biasing means for biasing the front inner cylinder to the rear side is disposed,
In the screw rod, a shaft body portion extends rearward from a support portion that supports a rear end portion of the bar-shaped cosmetic material, and the male screw is provided outside the shaft body portion, and the male screw of the shaft body portion A bulging portion that bulges in the radial direction is provided at the rear end,
The bar-shaped cosmetic cartridge according to claim 1, wherein when the screw rod is extended, the bulging portion comes into contact with the female screw of the inner cylinder on the front side so that the screw rod is extended maximum.   The female screw is a screw projection that protrudes in a certain section in a spiral shape, and the screw projection is provided at two locations on the inner peripheral surface of the inner cylinder rotated by 180 ° about the axis of the front inner cylinder. The stick-shaped cosmetic cartridge according to claim 1, wherein

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