JP4739856B2 - 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 stick-shaped cosmetic cartridge for feeding a stick-shaped cosmetic is mounted on one end side of a pencil cylinder which is a cylindrical container, and another stick-shaped cosmetic cartridge or an applicator is provided on the other end side, for example. A stick-shaped cosmetic material delivery container that is worn and used for diversifying purposes is known (see, for example, Patent Document 1). The bar-shaped cosmetic cartridge constituting the bar-shaped cosmetic feed-out container has a core chuck shaft that holds a rear end portion of the bar-shaped cosmetic material at its front end portion and has a protruding portion as a male screw at the rear end portion thereof, A spiral cylinder having a spiral groove into which the protrusion of the core chuck shaft is screwed, and a core chuck shaft that is non-rotatable and slidable in the axial direction on the front side, and a spiral cylinder that is rotatable on the rear side and axial direction The rod-shaped cosmetic cartridge is mounted so as to be rotatable and detachable (or non-detachable) with respect to the pencil cylinder, and this attachment causes the axial direction in the pencil cylinder to be included. A crest portion of an engaging portion provided at a substantially central portion of the rod-shaped cosmetic cartridge is engaged with an elastic protrusion provided at a rear end portion of the spiral tube in the rotation direction. The rotation of the pencil cylinder is applied from the rear side so that the pencil cylinder and the cartridge cylinder are relatively rotated. When the pencil cylinder and the cartridge cylinder are rotated relative to each other, the spiral cylinder and the cartridge cylinder rotate relative to each other. In addition, the core chuck shaft advances and retreats, and the bar-shaped cosmetic material protrudes and retracts from the tip of the cartridge cylinder by the rotation prevention mechanism constituted by the cartridge cylinder, the protrusion of the core chuck axis, and the screw groove mechanism of the spiral cylinder. It is said that. In this bar-shaped cosmetic supply container, the elastic protrusion of the spiral tube can be elastically pushed open in the radial direction, so that the user can move beyond the advance / retreat limit (advance limit, retract limit) of the core chuck shaft. When the relative rotation operation is performed in the same direction, it functions as a so-called clutch that repeats the movement of the elastic protrusion of the spiral tube over the peak of the engaging portion of the pencil tube and the next peak, and overload acts on the part. It is set not to be configured.
Noto 3030037 gazette

  By the way, in recent years, there is a demand for higher quality for the bar-shaped cosmetic cartridge having the clutch function. For example, even if the bar-shaped cosmetic material feeding container is dropped and an impact or vibration is applied, the bar-shaped cosmetic material is used. However, it is difficult to achieve this by employing the clutch having the above-described configuration.

  The present invention has been made to solve such a problem, and even if the user further performs relative rotation operation in the same direction at the forward limit and the backward limit, an overload may act on the parts. This prevents damage to the parts and protects the parts, and prevents the withdrawal function and breakage of the stick-shaped cosmetics due to the impact and vibration without impairing the payout function compared to the past. An object is to provide a cartridge.

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, wherein the inner cylinder is divided into two in the axial direction , a front inner cylinder and a rear inner cylinder, and the rear inner cylinder is rotatable to the outer cylinder and It is impossible to move in the axial direction, has a predetermined meshing portion, is given a rotational force from the rear side and rotates relative to the outer cylinder, and the front inner cylinder meshes with the meshing portion of the rear inner cylinder in the rotational direction. It has a meshing part to be engaged and a female screw in the cylinder, and it can move in the axial direction with respect to the rear inner cylinder. It is, in the outer tube, is characterized by biasing means for biasing the inner cylinder of the front to the rear as engagement portions are engaged are disposed.

  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 axially movable relative to the rear inner cylinder and is accommodated in the outer cylinder while being urged rearward by the urging means. The meshing portion provided on the cylinder engages with the meshing portion provided on the rear inner cylinder in the meshing rotation direction, and the front inner cylinder is connected to the internal female screw on the rear side of the bar-shaped cosmetic. Since the male screw of the screw rod that supports the end portion and has a male screw on the outside is engaged, when the rotational force is applied to the rear inner cylinder from the rear side, the rear inner cylinder meshes. A relative rotation with respect to the outer cylinder with the inner cylinder on the front side through the part, and is configured by the inside of the front side of the outer cylinder and the screw rod The screw mechanism is composed of a locking mechanism, a male screw of the screw rod and a female screw of the inner cylinder on the front side, so that the screw rod smoothly advances and retreats, and the bar-shaped cosmetic material appears and disappears well from the tip of the outer cylinder. When the rod reaches the forward limit and a relative rotational force is applied in the forward direction of the screw rod, or when the screw rod reaches the backward limit and a relative rotational force is applied in the backward direction of the screw rod, the screw rod is screwed. The front inner cylinder to be engaged moves forward against the urging force of the urging means, and the engagement between the meshing parts is released, and then the front inner cylinder is retreated by the urging force of the urging means to engage with each other. Returns at the meshing position adjacent to the rotation direction and functions as a so-called clutch. For this reason, even if the user further performs a relative rotation operation in the same direction at the forward limit and backward limit of the screw rod, no overload is applied to the component, and the component is prevented from being damaged. Also, if an impact or vibration is applied to the stick-shaped cosmetic supply container equipped with the stick-shaped cosmetic cartridge, the inner cylinder on the rear side does not move in the axial direction, so that it reliably rotates from the rear side with respect to the inner cylinder on the rear side. The state in which the force is applied is maintained, and the front inner cylinder is subjected to the biasing force of the biasing means with a screw rod screwed to the front inner cylinder, with the rear inner cylinder remaining. Opposite, it moves forward and the meshing parts are released. Impact and vibration are absorbed by the forward movement of the inner cylinder on the front side and the buffering action of the biasing means, so that the stick-shaped cosmetic material is prevented from being pulled out and broken. When the impact or vibration disappears, the urging means urges the front inner cylinder, the front inner cylinder and the bar-shaped cosmetic retreat, and the engagement between the meshing portions is restored.

  Here, if the meshing portion is provided with a substantially chevron-shaped convex portion protruding in the axial direction along the circumferential direction, when the front inner cylinder moves forward, the meshing portion immediately engages. When the front inner cylinder is released and returned, the meshing smoothly returns according to the generally chevron shape of the meshing portion.

  As described above, according to the present invention, an overload does not act on the component, the component is prevented from being damaged, and the component can be protected. In addition, the stick-shaped cosmetic material can be satisfactorily projected and retracted from the tip of the outer cylinder, and the stick-shaped cosmetic material can be prevented from being pulled out or broken due to the action of impact or vibration, and the quality can be improved without impairing its feeding function as compared with the past. It becomes possible.

  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. FIGS. 1 to 3 are views showing a stick-shaped cosmetic supply container provided with a stick-shaped cosmetic cartridge, and FIGS. 4 to 6 are views showing a cartridge holder of a cartridge housing container to which the stick-shaped cosmetic cartridge is mounted. 7 is a longitudinal sectional view showing the applicator holder of the cartridge container, FIGS. 8 and 9 are views showing the rod-shaped cosmetic cartridge, and FIG. 10 is a perspective view showing the front and rear inner cylinders and the tension spring. FIGS. 11 to 14 are diagrams showing the front and rear inner cylinders, FIGS. 15 to 18 are diagrams showing the rear inner cylinder, and FIGS. 19 to 23 show the front inner cylinder. The stick-shaped cosmetic material supply container provided with the stick-shaped cosmetic cartridge according to the present embodiment is used for storing and using various solid stick-shaped cosmetic materials such as an eyeliner, an eyebrow, and a lip liner. The person can appear and disappear as needed It is intended to.

  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 1 to 3, a 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 (chip in this embodiment) 3 is provided.

  As shown in FIG. 3, the cartridge housing container 2 includes a cylindrical shaft cylinder 5 that forms an outer cylinder, and a cartridge holder 6 and an applicator holder 7 that are housed in the shaft cylinder 5 and form an inner cylinder. Has been. The cartridge holder 6 is mounted on one side of the shaft tube 5, and the applicator holder 7 is mounted on the other side of the shaft tube 5.

  The cartridge holder 6 is formed in a stepped cylindrical shape as shown in FIGS. 4 to 6, and as shown in FIGS. 4 and 6, the rear from the center in the axial direction to the tip (left side in the figure) is outside. A large diameter portion 6x is formed, and the outer diameter large diameter portion 6x to the vicinity of the rear end (right side in the drawing) is an outer diameter medium diameter portion 6y, and the outer diameter medium diameter portion 6y to the rear end is an outer diameter small diameter portion. 6z. The cartridge holder 6 is provided with a large-diameter flange portion 6a at the tip of the outer-diameter large-diameter portion 6x, and the outer circumferential surface of the outer-diameter large-diameter portion 6x has a circumferential position at a position rearward of the flange portion 6a. A knurl 6b having a predetermined length in which unevenness is closely arranged along the direction is provided for mounting on the shaft cylinder 5.

  In addition, on the outer peripheral surface of the outer diameter / middle diameter portion 6y of the cartridge holder 6, protrusions 6c extending in the axial direction are formed at equal positions along the circumferential direction (four positions in the present embodiment). An annular protrusion 6d is formed on the outer peripheral surface of the outer diameter small diameter portion 6z. These protrusion 6c and annular protrusion 6d are for mounting the applicator holder 7.

  As shown in FIG. 6, a partition wall 6e is provided on the inner surface of the cartridge holder 6 at the boundary between the outer diameter large diameter portion 6x and the outer diameter medium diameter portion 6y. An engaging portion 6f that is shaped and protrudes forward is provided. The engaging portion 6f is for engaging the inner cylinder 12 on the rear side of the rod-shaped cosmetic cartridge 1 in the rotation direction (details will be described later), and is formed on the outer peripheral surface of the cylindrical body that extends in a short length in the axial direction. As shown in FIG. 5, a plurality of (four in this embodiment) protrusions 6h having a triangular triangular cross section extending in the axial direction are provided at equal positions along the circumferential direction.

  Further, as shown in FIG. 6, the cartridge holder 6 is provided with an annular protrusion 6 g on the inner peripheral surface on the front end side for locking the main body cylinder 10 of the rod-shaped cosmetic cartridge 1 in the axial direction. Yes.

  The cartridge holder 6 is press-fitted into the shaft cylinder 5 from the rear side, and as shown in FIG. 3, the rear end surface of the flange portion 6a comes into contact with one end surface (the left end surface in the drawing) of the shaft cylinder 5, 6b is press-contacted to the inner peripheral surface of the shaft cylinder 5, so that the shaft cylinder 5 is mounted so as not to rotate but to move in the axial direction.

  As shown in FIG. 7, the applicator holder 7 is configured in a substantially cylindrical shape, and includes a large-diameter collar 7 a at a position slightly on the tip side (right side in the drawing) of the outer peripheral surface of the applicator holder 7. . On the applicator holder 7, a knurled portion 7 b of a predetermined length, in which unevenness is closely arranged along the circumferential direction on the outer peripheral surface on the rear end side (the left side in the drawing) from the flange portion 7 a is attached to the shaft tube 5. It is provided for the purpose of In addition, the applicator holder 7 is provided with a knurl 7c in which irregularities are densely arranged along the circumferential direction over a predetermined length from the rear end to the front end side of the inner peripheral surface thereof. An annular groove 7d is provided at a position somewhat on the tip side from the knurled surface 7c on the peripheral surface. The knurl 7c is for engaging the protrusion 6c of the cartridge holder 6 in the rotation direction, and the annular groove 7d is for engaging the annular protrusion 6d of the cartridge holder 6 in the axial direction.

  The applicator holder 7 is press-fitted into the shaft cylinder 5 from the rear side thereof, and as shown in FIG. 3, the collar portion 7a abuts on the other end surface (right end surface in the drawing) of the shaft cylinder 5, and the knurl 7b By being in pressure contact with the inner peripheral surface of the shaft tube 5, the shaft tube 5 is mounted so as not to rotate but to move in the axial direction. In this state, the protrusion 6c of the cartridge holder 6 enters the knurl 7c of the applicator holder 7 and engages in the rotation direction, and the annular groove 7d of the applicator holder 7 and the annular protrusion 6d of the cartridge holder 6 Are engaged in the axial direction, and the cartridge holder 6 and the applicator holder 7 are connected so as not to rotate but to move in the axial direction.

  The applicator holder 7 has the applicator 3 mounted on the tip side thereof, and a cap 8 that covers and protects the applicator tool 3 abuts against a protruding portion of the applicator holder 7 from the shaft cylinder 5. Thus, the applicator holder 7 is detachably mounted.

  On the other hand, the bar-shaped cosmetic cartridge 1 is schematically shown in FIGS. 8 and 9, and is housed in the main body cylinder 10 as an outer cylinder having a cylindrical shape and extending in the axial direction, as shown in FIG. And an internal cylinder 11 having a female screw constituting a screwing mechanism, and a male screw housed in the main body cylinder 10 and extending in the axial direction, supporting a stick-shaped cosmetic M at the tip, and constituting a screwing mechanism. When the main body cylinder 10 and the inner cylinder 11 are relatively rotated, the screw bar 14 advances and retreats, and the bar-shaped cosmetic material M appears and disappears from the front end 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.

  As shown in FIG. 3, the main body cylinder 10 has a distal end portion as a knob projecting from the distal end of the cartridge housing container 2, and an outer peripheral surface of the distal end portion through an outer circumferential step surface 10 a having a small diameter. It is set as the stepped cylindrical shape provided with the accommodating part accommodated.

  The distal end portion has a tapered shape with an outer diameter gradually decreasing toward the distal end, and the accommodating portion has an annular protrusion of the cartridge housing container 2 on the outer peripheral surface near the outer peripheral step surface 10a as shown in FIGS. An annular groove 10b for detachably engaging the portion 6g in the axial direction is provided, and an annular groove 10c is provided at a position between the annular groove 10b and the outer peripheral step surface 10a. The annular groove 10c gives good rotational resistance between the cartridge holder 6 of the cartridge container 2 and the main body cylinder 10 of the rod-shaped cosmetic cartridge 1, and the diameter of the rod-shaped cosmetic cartridge 1 in the cartridge container 2 An O-ring 15 is attached to prevent backlash in the direction.

  As shown in FIG. 9, the cylindrical hole penetrating in the axial direction of the main body cylinder 10 is an elliptical hole 10 d that accommodates and slides an elliptical bar-shaped cosmetic material M from the tip to the center in the axial direction. From the end of the elliptical hole 10d to the rear end of the main body cylinder 10, a circular hole having a larger diameter than the elliptical hole is formed. An inner peripheral step surface 10e is provided on the rear side of the circular hole, and the rear end side has a larger diameter than the inner peripheral step surface 10e. The inner circumferential step surface 10e is for hooking one end side (right end side in the drawing) of a later-described tension spring (biasing means) 16. The large-diameter circular hole includes 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.

  Then, a later-described support piece 14d of the screw rod 14 is accommodated in a plurality of locations (four locations in the present embodiment) around the elliptical hole 10d extending from the vicinity of the tip of the elliptical hole 10d to the rear end of the elliptical hole 10d. An advancing / retreating groove 10g that enables sliding is provided continuously, and an advancing / retreating hole 10h is constituted by the elliptical hole 10d and the advancing / retreating groove 10g.

  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 part 14a supports the rear end part of the bar-shaped cosmetic M and advances and retreats the advance / retreat hole 10h. The base part 14c having a short elliptical column shape against which the rear end surface of the bar-shaped cosmetic M is abutted, and the base part 14c It is provided so as to protrude toward the front end side at a plurality of positions (four locations in the present embodiment) in the circumferential direction of the outer peripheral surface, and the outer peripheral surface of the rear end portion of the bar-shaped cosmetic M is sandwiched and supported by the inner peripheral surface. 14 d of support pieces.

  The shaft body portion 14b has a cylindrical shaft portion 14e at the tip portion, and an outer peripheral surface from the shaft portion 14e to the rear end is a male screw 14f constituting a screwing mechanism. A portion on the front side of the male screw 14f is set as a retreat limit that abuts against a screwing projection 13z of the front inner cylinder 13 described later, and corresponds to a retreat limit of the screw rod 14.

  The screw rod 14 has a base portion 14 c slidably inserted into the elliptical hole 10 d of the main body cylinder 10, and a support piece 14 d slidably inserted into the advance / retreat groove 10 g of the main body cylinder 10. In addition, the front end surface of the advance / retreat groove 10g is a forward limit where the support piece 14b abuts, and corresponds to the forward limit of the screw rod 14.

  In particular, the inner cylinder 11 that characterizes 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.

  As shown in FIGS. 19 to 23, the front inner cylinder 13 is formed in a stepped cylindrical shape, the front end side is an outer diameter large diameter portion 13x, and the outer diameter is from the outer diameter large diameter portion 13x to the rear end. The small diameter portion 13y is used. As shown in FIGS. 20 to 23, on the inner peripheral surface on the front end side of the outer diameter large diameter portion 13x of the inner cylinder 13 on the front side, as shown in FIGS. Are provided opposite to each other.

  The outer diameter small diameter portion 13y of the front inner cylinder 13 has the same outer diameter as the outer diameter surface of the outer diameter large diameter portion 13x of the front inner cylinder 13 when the tension spring 16 is disposed. As shown, the outer diameter is larger than the larger diameter portion 13x. As shown in FIGS. 19 and 23, the other end side (the left end side in the drawing) of the tension spring 16 is hooked on the outer peripheral surface of the front end side of the outer diameter small diameter portion 13y of the inner cylinder 13 on the front side. The latching protrusions 13a are provided as a pair on both sides of the axis.

  Further, as shown in FIGS. 19 and 21, a meshing portion 13b for engaging with the rear inner cylinder 12 in the rotational direction is provided at the rear end portion of the outer diameter small diameter portion 13y of the front inner cylinder 13. It has been. The meshing portion 13b is provided with a plurality (four in the present embodiment) of substantially mountain-shaped convex portions 13bb projecting rearward in the axial direction at equal positions along the circumferential direction. These substantially chevron-shaped convex portions 13bb are provided on the outer peripheral side of the cylindrical portion 13n by denting the outer peripheral surface of the cylindrical outer diameter small-diameter portion 13y into a predetermined shape from the rear end toward the front end in the axial direction. ing.

  On the other hand, the rear inner cylinder 12 is formed in a substantially cylindrical shape as shown in FIGS. 15 to 18, and the inner peripheral surface thereof is sized to allow the rear end portion of the front inner cylinder 13 to enter. . A rear end portion of the rear inner cylinder 12 is provided with a large-diameter flange portion 12a. On the outer peripheral surface of the rear inner cylinder 12, as shown in FIGS. At the center, an annular protrusion 12f for engaging with the annular groove 10f of the main body cylinder 10 in the axial direction is provided.

  Also, as shown in FIGS. 16 to 18, the rear inner cylinder 12 has a predetermined length of knurls 12 h in which irregularities are closely arranged along the circumferential direction at the rear end portion of the inner peripheral surface thereof. Is provided to engage with the protrusion 6h of the cartridge holder 6 in the rotational direction.

  Also, as shown in FIGS. 16 and 17, the rear inner cylinder 12 is engaged with the meshing portion 13b of the front inner cylinder 13 in the rotational direction at a position close to the tip of the knurled 12h on the inner peripheral surface. A meshing portion 12b for mating is provided. The meshing portion 12b is provided with a large number (eight in the present embodiment) of convex portions 12bb having a substantially chevron shape protruding toward the distal end side in the axial direction along the circumferential direction. These substantially chevron-shaped convex portions 12bb are close to the tip of the knurl 12h by denting the inner peripheral surface of the cylindrical inner cylinder 12 on the rear side from the tip toward the rear end in the axial direction. In addition, it is provided on the outer side in the radial direction from the knurl 12h.

  In these rear and front inner cylinders 12 and 13, as shown in FIGS. 11 to 14, the front inner cylinder 13 is inserted from the rear side into the rear inner cylinder 12, and is approximately The chevron-shaped convex part 13bb enters between the substantially chevron-shaped convex parts 12bb, 12bb of the inner cylinder 12 on the rear side, and is in an engaged state in the meshing rotation direction.

  Then, as shown in FIG. 9, 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 flange portion 12a of the rear inner cylinder 12 is provided. The rear inner cylinder 12 is in contact with the rear end surface of the main body cylinder 10, and the annular protrusion 12 f of the rear inner cylinder 12 engages with the annular groove 10 f of the main body cylinder 10. It is mounted so that it can rotate but cannot move in the axial direction.

  In this state, a male screw 14f of a screw rod 14 is inserted into the inner cylinder 11 from the front side, and the male screw 14f is screwed into the screwing projections 13z and 13z of the inner cylinder 13 on the front side. It is said that.

  Further, in this state, the latching projection 13a of the front inner cylinder 13 is located on the front side of the inner peripheral step surface 10e of the main body cylinder 10, and the inner peripheral step surface 10e of the main body cylinder 10 and the front side step surface 10e. A tension spring 16 is disposed between the inner cylinder 13 and the latching protrusion 13a. As shown in FIG. 10, the tension spring 16 has one end side (the right end side in the figure) positioned radially outward from the front side portion by increasing the winding diameter, and on the other end side. A predetermined gap 16a for allowing the latching protrusion 13a of the inner cylinder 13 on the front side to enter is configured between the spring members.

  The tension spring 16 is arranged so as to surround a protruding portion from the rear inner cylinder 12 in the outer diameter small diameter portion 13y of the front inner cylinder 13, and as shown in FIG. The hook 10 is hooked on the inner peripheral step surface 10e of the tube 10, and the hooking protrusion 13a enters the gap 16a on the other end side so that the other end is hooked on the hooking protrusion 13a (see FIG. 10). 9), the front inner cylinder 13 is pressed against the rear inner cylinder 12 by the urging force of the tension spring 16, and the meshing portions 12b and 13b are meshed with each other so that they cannot rotate and move in the axial direction. It is in the state located in the retreat limit shown.

  When assembling the bar-shaped cosmetic cartridge 1 having such a configuration, first, the tension spring 16 is externally inserted from the distal end side to the front inner cylinder 13 and the other end side of the tension spring 16 is connected to the front inner cylinder 13. Then, the front inner cylinder 13 and the rear inner cylinder 12 are assembled so that the engagement portions 12b and 13b are engaged with each other, and then the screw rod 14 is assembled to the rear end side. Is inserted into the inner cylinder 13 on the front side, the male screw 14f of the screw rod 14 is screwed into the screwing protrusions 13z, 13z, and the screw rod 14 is screwed to the retreat limit in the screwed state.

  Next, the assembly is inserted and assembled from the rear side of the main body cylinder 10. Thereby, one end side of the tension spring 16 is hooked on the inner circumferential step surface 10 e of the main body cylinder 10. Next, if the bar-shaped cosmetic M is inserted from the opening at the tip of the main body cylinder 10 and attached to the screw bar 14, the bar-shaped cosmetic cartridge 1 shown in FIG. 9 is obtained.

  As shown in FIG. 3, the stick-shaped cosmetic cartridge 1 is inserted into the opening on one end side of the cartridge housing container 2 from its rear portion, and the outer peripheral step surface 10 a of the main body cylinder 10 is the cartridge of the cartridge housing container 2. The O-ring 15 of the main body cylinder 10 is in contact with the inner peripheral surface of the cartridge holder 6 and the annular groove 10b of the main body cylinder 10 is engaged with the annular protrusion 6g of the cartridge holder 6. As a result, the main body cylinder 10 is rotatably connected to the cartridge container 2 and, for example, when the bar-shaped cosmetic material M reaches the end of use and needs to be replaced for each bar-shaped cosmetic cartridge 1, etc. The cartridge container 2 cannot be moved in the axial direction except that it is pulled out with a predetermined force.

  In a state where the stick-shaped cosmetic cartridge 1 is mounted in the cartridge housing container 2, the protrusion 6h of the cartridge holder 6 enters the knurling 12h of the inner cylinder 12 on the rear side of the stick-shaped cosmetic cartridge 1 and is engaged. The rear inner cylinder 12 and the cartridge storage container 2 are connected so as not to rotate.

  In the bar-shaped cosmetic supply container 100 configured as described above, when the cartridge storage container 2 and the main body cylinder 10 of the bar-shaped cosmetic cartridge 1 are rotated relative to each other, the cartridge storage container 2 and the rear inner cylinder 12 are moved. The front inner cylinder 13 is non-rotatably connected, and the front inner cylinder 13 is urged rearward by the tension spring 16 so that the meshing portions 12b and 13b mesh with each other. Further, the threaded projection 13z of the front inner cylinder 13 and the male thread 14f of the threaded rod 14 constitute a threaded mechanism, and the support piece 14d of the threaded rod 14 and the forward / backward groove of the main body cylinder 10 are engaged in the rotational direction. Since 10 g constitutes a rotation preventing mechanism, the screw rod 14 smoothly advances and retreats, and the bar-shaped cosmetic M protrudes from the tip of the main body cylinder 10 so that application is possible.

  Here, the screw rod 14 moves forward to reach the forward limit, and a relative rotational force is applied by the user in the forward movement direction of the screw rod 14, or the screw rod 14 moves backward to reach the backward limit, and further the screw rod 14. When a relative rotational force is applied by the user in the backward direction, the front inner cylinder 13 that is screwed into the screw rod 14 moves forward against the urging force of the tension spring 16, and the meshing portions 12b and 13b mesh with each other. Then, the inner cylinder 13 on the front side is retracted by the urging force of the tension spring 16, and the meshing portions 12b and 13b are meshed with each other at the meshing position adjacent to the rotation direction to function as a so-called clutch. When the relative rotation in the direction is continued, the operation of releasing / returning the engagement between the engagement portions 12b and 13b is repeated.

  For this reason, even if the user further performs a relative rotation operation in the same direction at the forward limit or backward limit (advance / retreat limit) of the screw rod 14, no overload is applied to the component, and damage to the component is prevented. Yes.

  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 coupled so as not to move in the axial direction, and the front inner cylinder 13 urged rearward by the tension spring 16 is movable in the axial direction, so that the rear inner cylinder 12 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 that is screwed into the front inner cylinder 13, the tension spring 16 moves forward against the urging force of the tension spring 16, thereby releasing the meshing between the meshing portions 12 b and 13 b. The Impact and vibration are absorbed by the forward movement of the inner cylinder 13 on the front side and the extension action of the tension spring 16, and the stick-shaped cosmetic material M is prevented from being pulled out and broken. When there is no impact or vibration, the tension spring 16 pulls the front inner cylinder 13, the front inner cylinder 13 and the bar-shaped cosmetic M are retracted, and the meshing portions 12 b and 13 b are engaged again.

  Thus, in this embodiment, overload does not act on components, damage to components is prevented and components are protected. Further, since the stick-shaped cosmetic M appears and disappears well from the tip of the main body cylinder 10 and the stick-shaped cosmetic M is prevented from being pulled out or broken by the action of impact or vibration, the feeding function is impaired as compared with the conventional one. The quality is improved.

  Moreover, in this embodiment, since the meshing parts 12b and 13b are provided with juxtaposed convex parts 12bb and 13bb protruding in the axial direction along the circumferential direction, the front inner cylinder 13 is provided. When the vehicle moves forward, the meshing portions 12b and 13b are immediately disengaged, the front inner cylinder 13 is free to rotate with respect to the rear inner cylinder 12, and the front inner cylinder 13 is retracted and returned. In this case, even if the front inner cylinder 13 is displaced in the rotational direction, the meshing is smoothly restored according to the substantially chevron shape of the meshing portions 12b and 13b.

  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 rod-shaped cosmetic cartridge 1 is replaced. Although the rod-shaped cosmetic cartridge 1 is detachable from the cartridge container 2, it is of course 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, although the screwing mechanism is comprised by the male screw 14f of the screw rod 14, and the screwing protrusion 13z 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.

  In the above embodiment, the urging means for urging the front inner cylinder 13 rearward so that the meshing portions 12b, 13b mesh with each other is the tension spring 16, but the compression spring is changed by changing the arrangement configuration or the like. It is also possible to employ, and it is also possible to employ, for example, a resin spring made of resin or the like.

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 a side view showing the cartridge holder in FIG. 3. FIG. 5 is a front view of the cartridge holder shown in FIG. 4. It is a longitudinal cross-sectional view of the cartridge holder shown in FIG. It is a longitudinal cross-sectional view which shows the applicator holder in FIG. It is a side view which shows the rod-shaped cosmetic cartridge in FIGS. It is a longitudinal cross-sectional view of the stick-shaped cosmetic cartridge shown in FIG. It is a perspective view which shows the inner cylinder and tension 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 of the front side and rear side which are shown in FIG. FIG. 12 is a partially sectional exploded side view of the front and rear inner cylinders shown in FIG. 11. FIG. 12 is a partial cross-sectional exploded perspective view of the front and rear inner cylinders shown in FIG. 11. It is a side view which shows the inner cylinder of the rear side in FIGS. It is a longitudinal cross-sectional view of the inner cylinder of the rear side shown in FIG. It is a front view of the inner cylinder of the rear side shown in FIG. FIG. 16 is a rear view of the rear inner cylinder shown in FIG. 15. It is a perspective view which shows the inner cylinder of the front side in FIGS. FIG. 20 is a longitudinal sectional view of the front inner cylinder shown in FIG. 19. FIG. 20 is a rear view of the front inner cylinder shown in FIG. 19. FIG. 20 is a front view of the front inner cylinder shown in FIG. 19. FIG. 21 is an orthogonal vertical sectional view of the front inner cylinder shown in FIG. 20.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Bar-shaped cosmetic cartridge, 10 ... Main body cylinder (outer cylinder), 11 ... Inner cylinder, 12 ... Rear inner cylinder, 12b ... Engagement part of rear inner cylinder, 12bb, 13bb ... Projection part of substantially chevron shape , 13 ... front inner cylinder, 13b ... meshing part of the front inner cylinder, 13z ... female screw of the front inner cylinder, 14 ... screw rod, 14f ... male screw of screw rod, 16 ... tension 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 divided into two in the axial direction into a front inner cylinder and a rear inner cylinder,
The inner cylinder on the rear side is rotatable with respect to the outer cylinder and cannot move in the axial direction, and has a predetermined meshing portion, and a rotational force is applied from the rear side to rotate relative to the outer cylinder ,
The front inner cylinder has a meshing portion that meshes with a meshing portion of the rear inner cylinder and engages in the rotation direction, and has the female screw in the cylinder, and is axial with respect to the rear inner cylinder. Can be moved to,
A bar-shaped cosmetic cartridge characterized by urging means for urging the front inner cylinder rearward so that the meshing portions are engaged with each other in the outer cylinder. 2. The bar-shaped cosmetic cartridge according to claim 1, wherein the meshing portion includes substantially chevron-shaped convex portions protruding in the axial direction along the circumferential direction.

Images