JP6561278B2 - Coating material extrusion container - Google Patents

Description

  The present invention relates to a coating material extrusion container for extruding a coating material for use.

  As a conventional coating material extruding container, for example, the one described in Patent Document 1 is known. In the coating material extruding container described in Patent Document 1, the main body cylinder (container front part) and the operation cylinder (container rear part) are rotated relative to each other in one direction so that the movable body and the screw cylinder (screwing member) are screwed together. It is intended to move the moving body forward by causing the screwing action of the part to act.

JP 2011-115485 A

In the coating material extruding container in which the moving body moves forward by the screwing action of the first screwing part and the screwing action of the second screwing part, there is a problem of giving a click feeling to the user.

Then, this invention makes it a subject to provide a user with a click feeling in the coating material extrusion container in which a moving body advances by the screwing action of the first screwing part and the screwing action of the second screwing part. .

The coating material extruding container according to the present invention includes a moving body and a screwing member in a container including a container front part and a container rear part, and by rotating the container front part and the container rear part in one direction relative to each other, In the application material extruding container in which the screwing action of the first screwing part of the front part and the screwing member and the screwing action of the second screwing part of the moving body and the screwing member work, the moving body moves forward. The screwing member is screwed into the first cylindrical portion and the female screw at the front of the container, and is screwed into the male screw constituting the first screwing portion and the male screw of the moving body, In a state where the female screw constituting the screwing portion, the container front portion and the container rear portion are relatively rotated in the other direction and the screwing action of the first screwing portion is released, the male screw of the screwing member is moved to the front of the container. A spring portion biasing toward the female screw side of the portion, and the rear portion of the container has a second cylindrical portion that is inserted into or externally inserted into the first cylindrical portion, and the second cylindrical portion Is the radial direction One protruding portion is provided, and the first cylindrical portion is provided with the other protruding portion that protrudes in the radial direction and engages the one protruding portion in the rotational direction, and the one protruding portion and the other protruding portion. At least one of the parts has elasticity in the radial direction by a notch formed in the periphery thereof, and the male screw and the female screw of the screwing member, and the other protrusion is one of the axial direction with respect to the spring part. When the container front part and the container rear part are relatively rotated in one direction, the one projecting part and the other projecting part are engaged with each other, and the container rear part and the screwing member are rotated synchronously. And the container front part rotate relative to each other, and the screwing action of the first screwing part works. When the container front part and the container rear part are further relatively rotated in one direction, the screwing action of the first screwing part is reduced. After the stop, the other protrusion gets over the one protrusion, the container rear part and the screwing member rotate relative to each other, and the screwing action of the second screwing part is Ku.

  In the coating material extruding container according to the present invention, one protrusion may extend along the axial direction so as to always come into contact with the other protrusion when the screwing member advances and retreats.

  In the coating material extruding container according to the present invention, the spring portion may be formed with a slit extending spirally along the outer peripheral surface and communicating between the inside and the outside.

ADVANTAGE OF THE INVENTION According to this invention, in a coating material extrusion container to which a moving body advances by the screwing action of a 1st screwing part and the screwing action of a 2nd screwing part, a click feeling can be provided to a user.

It is a longitudinal cross-sectional view which shows the initial state of the coating material extrusion container which concerns on 1st Embodiment. It is a longitudinal cross-sectional view which shows the state of the advance limit of a moving body in the coating material extrusion container of FIG. It is sectional drawing which shows the filling member of the coating material extrusion container of FIG. FIG. 2 is a side view showing a partially sectioned operation cylinder of the coating material extruding container of FIG. 1. It is sectional drawing which shows the operation cylinder of FIG. It is a front view which shows the operation cylinder of FIG. It is a perspective view explaining shaping | molding of the operation cylinder of FIG. It is a perspective view which shows the screw cylinder of the coating material extrusion container of FIG. (A) is sectional drawing which follows the IX (a) -IX (a) line of FIG. 8, (b) is sectional drawing which follows the IX (b) -IX (b) line of FIG. It is sectional drawing which follows the XX line of FIG. It is a side view which shows the moving body of the coating material extrusion container of FIG. It is sectional drawing which follows the XII-XII line | wire of FIG. It is sectional drawing which shows the cap of the coating material extrusion container of FIG. It is a longitudinal cross-sectional view which shows the initial state of the coating material extrusion container which concerns on 2nd Embodiment. It is a longitudinal cross-sectional view which shows the state of the advance limit of the pipe member in the coating material extrusion container of FIG. It is a longitudinal cross-sectional view which shows the state of the advance limit of the piston in the coating material extrusion container of FIG. FIG. 15 is a side view showing a partially sectioned operation cylinder of the coating material extruding container of FIG. 14. It is sectional drawing which follows the AA line of FIG. It is a front view which shows the operation cylinder of FIG. (A) is a side view which shows the moving screw cylinder of the coating material extrusion container of FIG. 14, (b) is a bottom view which shows the moving screw cylinder of FIG. 20 (a). It is sectional drawing which shows the moving screw cylinder of Fig.20 (a). It is a perspective view which shows the moving body of the coating material extrusion container of FIG. (A) is a side view which shows the piston of the coating material extrusion container of FIG. 14, (b) is sectional drawing which shows the piston of Fig.23 (a). It is a bottom view which shows the front tube of the coating material extrusion container of FIG. It is sectional drawing which follows the BB line of FIG. FIG. 15 is a bottom view showing a part of the pipe member of the coating material extruding container of FIG. 14. It is sectional drawing which follows the CC line of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

[First Embodiment]
FIG. 1 is a longitudinal sectional view showing an initial state of the coating material extruding container according to the first embodiment, and FIG. 2 is a longitudinal sectional view showing a forward limit state of the moving body in the coating material extruding container of FIG. As shown in FIGS. 1 and 2, the coating material extruding container 100 according to the present embodiment discharges (extrudes) the coating material M filled therein appropriately by a user's operation.

  Examples of the coating material M include various stick-shaped cosmetics such as lipstick, lip gloss, eyeliner, eye color, eyebrow, lip liner, teak color, concealer, beauty stick, hair color, and writing tools. A rod-shaped core or the like can be used, and in particular, a very soft rod-like material (such as semi-solid, soft solid, soft, jelly, mousse, or a kneaded shape containing these) is used. Is preferred. Further, a thin rod-shaped object having an outer diameter of 1 mm or less or a thick rod-shaped object having a diameter of 10 mm or more can be used.

  Further, as the coating material M, it is preferable to use a semi-solid material having a relatively low hardness, and it is particularly preferable to use a coating material M having a hardness of about 0.4N to 0.9N. is there. The hardness of the coating material M is determined by a general measuring method used for measuring hardness in cosmetics. Here, for example, FUDOH RHEO METER [RTC-2002D.D] (manufactured by Rheotech Co., Ltd.) is used as a measuring device, and a steel rod (one adapter) of φ2 mm is used at a speed of 6 cm / min at an ambient temperature of 25 ° C. The peak force (strength) generated in the coating material M when inserted into the coating material M at a depth of about 10 mm is defined as hardness (penetration).

  The coating material extruding container 100 is connected to the filling member 1 which is a leading cylinder provided with a filling region 1x filled with the coating material M and the rear end portion of the filling member 1 so as to be rotatable relative to the axial direction. And an operation cylinder 2 to be configured as an outer configuration. The filling member 1 constitutes the container front part, and the operation cylinder 2 constitutes the container rear part. “Axis” means a center line extending in the front-rear direction of the coating material extruding container 100, and “Axis direction” means a direction along the axis in the front-rear direction (hereinafter the same). In addition, the feeding direction of the coating material M is defined as the front (advancing direction), and the feeding direction of the coating material M is defined as the rear (the receding direction).

  The coating material extruding container 100 includes a moving body 3 that moves in the axial direction by relative rotation of the filling member 1 and the operation cylinder 2 and a screwing member that enables movement of the moving body 3 by the relative rotation. Screw cylinder 4. Further, as shown in FIG. 1, the coating material extruding container 100 includes a ratchet mechanism 5 that allows relative rotation of the filling member 1 and the operation cylinder 2 only in one direction, and a screw engagement provided on the moving body 3 and the screw cylinder 4. And a cap 7 that is detachably attached to the operation cylinder 2 so as to cover the filling member 1 from the front side.

  3 is a cross-sectional view showing a filling member of the coating material extruding container of FIG. As shown in FIG.1 and FIG.3, the filling member 1 discharges the coating material M with which the internal filling area | region 1x was filled from the front-end part according to operation by a user. The filling member 1 is formed of ABS resin and has a cylindrical shape, and the opening 1a at the tip is used as a discharge port for causing the coating material M to appear. The opening 1a is formed by an inclined angle plane that is inclined at a predetermined angle with respect to the axial direction. The opening 1a may be a flat shape formed by a vertical surface in the axial direction or a mountain shape.

  The rear side of the inner peripheral surface of the filling member 1 is used to engage the screw cylinder 4 in the rotational direction (rotating direction around the axis), and a large number of irregularities are arranged in the circumferential direction. A knurling 1b extending a predetermined length in the direction is provided. The outer peripheral surface of the filling member 1 is an inclined surface that is inclined so as to taper toward the front side, and is held close to a rib 7x (described later) in the cap 7 when the cap 7 is attached. It is like that. The rear side of the outer peripheral surface of the filling member 1 is reduced in diameter through a step 1c, and has an annular convex portion 1d that engages the operation cylinder 2 in the axial direction.

  4 is a side view showing a part of the operation cylinder of the coating material extruding container of FIG. 1, FIG. 5 is a sectional view showing the operation cylinder of FIG. 4, and FIG. 6 shows the operation cylinder of FIG. FIG. 7 is a front view, and FIG. 7 is a perspective view illustrating molding of the operation cylinder of FIG. As shown in FIGS. 4 to 6, the operation cylinder 2 is an injection-molded product made of resin, and has a bottomed cylindrical shape that opens forward. The front end side of the operation cylinder 2 includes a front end cylinder portion 2a whose outer diameter is a small diameter. A cap C is detachably attached to the front end cylinder portion 2a.

  An inner cylindrical portion (second cylindrical portion) 2 b that is formed in a cylindrical shape coaxial with the operation cylinder 2 is provided upright at the bottom of the operation cylinder 2. On the outer peripheral surface 29 of the inner cylindrical portion 2b, a plurality of one protruding portions 5a constituting the ratchet teeth of the ratchet mechanism 5 are provided. These one protrusion 5a protrudes at an equally spaced position in the circumferential direction on the outer peripheral surface 29 of the inner cylindrical portion 2b so as to protrude radially outward. One protrusion 5a here is provided so as to have a sawtooth shape in the circumferential direction, and extends along the axial direction.

  In addition, a shaft body 2 c that is engaged with the moving body 3 in the rotation direction is provided upright at the center (axis position) of the bottom of the operation cylinder 2. The shaft body 2c has a non-circular cross section (cross section orthogonal to the axial direction) having a plurality of protrusions 2d extending in the axial direction on the outer peripheral surface of the cylindrical body. One of the above.

  A plurality of protrusions 2 e that engage with the annular convex portion 1 d of the filling member 1 in the axial direction are provided in the central portion in the axial direction on the inner peripheral surface of the operation cylinder 2. The plurality of protrusions 2e are arranged at four positions in the circumferential direction, protrude radially inward, and extend along the circumferential direction. In addition, a plurality of openings 2 f penetrating the inside and outside of the operation cylinder 2 in the axial direction are provided at the bottom of the operation cylinder 2.

  The openings 2f have a sector shape extending along the circumferential direction, and are arranged at four circumferentially equal positions corresponding to the plurality of protrusions 2e. Specifically, each opening 2f is formed at a position including each protrusion 2e when viewed in the axial direction. In other words, each of the plurality of protrusions 2e has a positional relationship overlapping with each of the plurality of openings 2f when viewed from the axial direction.

  As shown in FIG. 1, the operation cylinder 2 has its front end cylinder part 2 a extrapolated to the filling member 1 and abutted against the step 1 c, and its projection 2 e is engaged with the annular convex part 1 d of the filling member 1. As a result, the filling member 1 can be rotated relative to the filling member 1 in the axial direction.

  Such an operation cylinder 2 can be resin-molded using core pins D1 and D2, as shown in FIGS. Here, since the operation cylinder 2 has the opening 2f, the plurality of protrusions 2e can be suitably formed by using the opening 2f.

  For example, when the core pins D1 and D2 are assembled to each other, the predetermined space 53 corresponding to the protrusion 2e is sandwiched in the circumferential direction by the concave portion 51 on the outer peripheral surface of the core pin D1 and the column portion 52 of the core pin D2 in the circumferential direction. It can be laid out at equally spaced positions. As a result, when the mold is released after molding (that is, after the molten resin is filled and solidified in the predetermined space 53 to form the protrusion 2e), the column portion 52 of the core pin D2 is pulled out from the opening 2f. The core pin D2 can be slid in the axial direction, and when the product (operation cylinder 2) protrudes and is released, the core pin D1 can be slid in the axial direction and easily pulled out.

  8 is a perspective view showing a screw cylinder of the coating material extruding container of FIG. 1, and FIG. 9 is a view taken along lines IX (a) -IX (a) and IX (b) -IX (b) of FIG. FIG. 10 is a sectional view taken along line XX in FIG. As shown in FIGS. 8 to 10, the screw cylinder 4 is an injection-molded product made of resin and has a stepped cylindrical outer shape. The screw cylinder 4 includes a front end cylinder part 4x, a central cylinder part 4y having a larger outer diameter than the front end cylinder part 4x, and a rear end cylinder part (first cylindrical part having a larger outer diameter than the center cylinder part 4y). ) 4z in this order from the front to the rear. Moreover, the inner peripheral surface of the screw cylinder 4 is expanded in a stepped shape so that the inner diameter thereof follows the outer diameter from the front to the rear.

  The front end cylinder part 4x is configured to be able to expand radially outward by a pair of slits 41 that extend in the axial direction from the front end and are opposed to each other. The rear end side of the slit 41 is expanded so as to have a circular shape when viewed from the side (see FIG. 9), thereby facilitating mold release from the mold and assembly of the moving body 3 during molding. The front end cylinder portion 4x is configured to be easily expanded. Further, a female screw 61 constituting one of the screwing portions 6 is provided in a region extending from the front end to the rear by a predetermined length on the inner peripheral surface of the front end cylindrical portion 4x.

  A pair of fan-shaped flanges 42 are provided on the front side of the outer peripheral surface of the front end cylinder part 4x so as to face each other through the slit 41. The flange portion 42 is close to or abuts against the inner peripheral surface of the filling member 1 and prevents the front end cylinder portion 4x and thus the inner diameter of the female screw 61 from expanding, whereby the thrust force of the screwing portion 6 in the axial direction is increased. Can be secured. The central cylindrical portion 4y is formed with ridges 43 for engaging with the knurls 1b of the filling member 1 in the rotational direction at a plurality of positions in the circumferential direction on the outer peripheral surface thereof.

  The rear end cylindrical portion 4z is provided with the other protrusion 5b constituting the ratchet teeth of the ratchet mechanism 5 at a pair of positions facing each other on the inner peripheral surface 49 thereof. The other protrusion 5b engages with one protrusion 5a in the rotational direction, and is provided so as to protrude radially inward. In the rear end cylinder portion 4z, a U-shaped notch 44 is formed around the other protrusion 5b so as to communicate the inside and outside of the screw cylinder 4. The notch 44 causes the other protrusion 5b to It has elasticity in the radial direction.

  Specifically, the notch 44 has a pair of slits 44a and 44b that are formed on both sides in the axial direction of the other protrusion 5b in the rear end cylindrical portion 4z and extend along the circumferential direction, and in the rear end cylindrical portion 4z. It includes a slit 44c that is formed on one side in the circumferential direction of the other protrusion 5b and extends along the axial direction so as to be continuous with the slits 44a and 44b. The wall portion surrounded by the notch 44 in the rear end cylindrical portion 4z forms an arm 45 having flexibility in the radial direction, whereby the other protrusion 5b disposed on the inner surface of the distal end portion of the arm 45. Has a predetermined elastic force (biasing force) in the radial direction.

  As shown in FIGS. 1 and 9, the screw cylinder 4 is inserted into the filling member 1, and the protrusion 43 is engaged with the knurl 1 b of the filling member 1 in the rotational direction, and the central cylinder portion thereof. The rear end surface of the filling member 1 is abutted against the stepped surface 48 of 4y and the rear end cylindrical portion 4z, so that the filling member 1 can be rotated synchronously and engaged with and mounted in the axial direction. Further, the screw cylinder 4 is inserted into the operation cylinder 2, and the rear end cylinder part 4z is externally inserted into the inner cylinder part 2b. At this time, the rear end face of the screw cylinder 4 is advanced to the vicinity (near the bottom face) of the operation cylinder 2, and the other protrusion 5b is engaged with the one protrusion 5a in the rotation direction, whereby the ratchet mechanism 5 is formed. ing.

  11 is a side view showing a moving body of the coating material extruding container of FIG. 1, and FIG. 12 is a cross-sectional view taken along line XII-XII of FIG. As shown in FIGS. 11 and 12, the moving body 3 includes a cylindrical portion 31 configured in a cylindrical shape, and a filling region 1x (see FIG. 1) provided in close contact with the filling member 1 provided at the front end of the cylindrical portion 31. And an extruding portion 32 that forms (forms) the rear end.

  The cylindrical portion 31 includes a male screw 62 constituting the other of the screwing portion 6 on the outer peripheral surface extending from the rear side to the rear end portion from the front end portion. Further, on the inner circumferential surface of the cylindrical portion 31, a ridge 33 that protrudes radially inward and extends in the axial direction is provided as a component that constitutes the other of the anti-rotation portions in the circumferentially six-positioned position. .

  A pair of opposing positions on the outer peripheral surface on the front end side of the cylindrical portion 31 has a through-hole 34 having a long oval cross section that is elongated in the axial direction, as a core pin is supported so as not to be inclined by injection pressure during molding. It is provided so as to penetrate inside and outside. The extruding part 32 has an outer shape formed in a flat cylindrical shape, and has a planar shape whose front end face is orthogonal to the axial direction.

  As shown in FIGS. 1 and 12, the movable body 3 is inserted so that the pushing portion 32 is close to the filling member 1, and the cylindrical portion 31 is extrapolated to the shaft body 2 c of the operation tube 2 and is screwed. The male screw 62 is inserted into the cylinder 4 and the female screw 61 of the screw cylinder 4 is screwed. Then, the protrusion 33 is engaged between the protrusions 2d and 2d of the shaft body 2c, and is movable in the axial direction so as to be movable in the axial direction (that is, the operation tube 2 and the moving body 3 are synchronously rotated). The cylindrical portion 31 is attached to the shaft body 2c so as to engage in the rotational direction.

  13 is a cross-sectional view showing a cap of the coating material extruding container of FIG. As shown in FIG. 13, the cap 7 has a bottomed cylindrical shape that opens rearward, and a plurality of ribs 7 x extending in the axial direction are arranged in parallel along the circumferential direction on the inner circumferential surface thereof. . The rib 7x has a raised portion 7y provided on the front end side thereof and raised so as to protrude inward in the radial direction, and an inclined portion 74 that continues to the rear of the raised portion 7y via a step 73. The top surface 75 of the inclined portion 74 is inclined outward in the radial direction as it goes rearward. Here, the inclined portion 74 is inclined at an inclination angle corresponding to the outer peripheral surface of the filling member 1.

  As shown in FIGS. 1 and 13, the cap 7 is extrapolated to the filling member 1 and the operation cylinder 2, for example, in an initial state or not in use, and can be attached to and detached from the operation cylinder 2. Installed. At this time, the cap 7 has the front end of the filling member 1 abutted against the step 73 of the rib 7x, and the outer peripheral surface of the filling member 1 is close to the inclined portion 74 of the rib 7x. 1 can be held. The cap 7 can suppress the movement of the tip side of the filling member 1 and the movement in the lateral direction (cross direction of the axial direction) even when an external impact such as dropping is applied, and prevents the filling member 1 from being disassembled or damaged. As a result, the coating material M can be protected.

  Here, in this embodiment, as shown in FIGS. 6 and 10, a state before the inner cylindrical portion 2 b of the operation cylinder 2 is inserted into the rear end cylindrical portion 4 z of the screw cylinder 4 (state before assembly). , The inner diameter R1 of the tip of the other protrusion 5b is smaller than the outer diameter R2 of the outer peripheral surface 29 of the inner cylindrical portion 2b. For example, the inner diameter R1 is smaller than the outer diameter R2 by a predetermined length, the inner diameter R1 is φ7.8 mm, and the outer diameter R2 is 8.4 mm.

  As shown in FIG. 1, in the state where the inner cylindrical portion 2b is inserted into the rear end cylindrical portion 4z (the state after assembly), the other protrusion 5b is the outer peripheral surface 29 of the inner cylindrical portion 2b. It is always in contact with. Accordingly, the inner cylindrical portion 2b of the operation cylinder 2 is held by the rear end cylindrical portion 4z of the screw cylinder 4, and a resistance in the rotational direction is constantly generated between them.

  Further, as described above, the one protrusion 5 a and the other protrusion 5 b constitute the ratchet mechanism 5. More specifically, as shown in FIG. 6, one protrusion 5a has one side in the circumferential direction (when the filling member 1 and the operation cylinder 2 are relatively rotated in one direction, the other protrusion 5b is in contact with the other protrusion 5b. The side surface 5a1 on the contact side is inclined with respect to the tangent plane of the outer peripheral surface 29 of the inner cylindrical portion 2b so as to form a mountain shape. Further, the side surface 5a2 on the other side in the circumferential direction of one projection 5a (the side that abuts the other projection 5b when the filling member 1 and the operation cylinder 2 are relatively rotated in the other direction) is an inner cylindrical portion. It is configured to be substantially perpendicular to the tangent plane of the outer peripheral surface 29 of 2b.

  As shown in FIG. 10, the other protrusion 5b is on the other side in the circumferential direction (the side that comes into contact with one protrusion 5a when the filling member 1 and the operation cylinder 2 are relatively rotated in one direction). The side surface 5b1 is inclined with respect to the inner peripheral surface 49 of the rear end cylindrical portion 4z so as to have a mountain shape. Further, the side surface 5b2 on one side in the circumferential direction of the other protrusion 5b (the side that comes into contact with one protrusion 5a when the filling member 1 and the operation cylinder 2 are relatively rotated in the other direction) It is configured to be perpendicular to the inner peripheral surface 49 of 4z.

  In the initial state of the coating material extruding container 100 configured as described above and shown in FIG. 1, the cap 7 is removed by the user, and the filling member 1 and the operation cylinder 2 are relatively rotated in one direction which is the feeding direction. As a result, the threaded portion 6 including the female screw 61 of the screw cylinder 4 and the male screw 62 of the moving body 3 cooperates with the rotation stopping portion including the protrusion 2d of the operating cylinder 2 and the protrusion 33 of the moving body 3. Accordingly, the moving body 3 moves forward, and the coating material M filled in the filling region 1x of the filling member 1 is discharged from the opening 1a (see FIG. 2).

  During this relative rotation, one protrusion 5a and the other protrusion 5b in the ratchet mechanism 5 are engaged in the rotation direction, and the other protrusion 5b is caused by the radial elastic force by the notch 44 (see FIG. 8). Is biased radially inward, the engagement and disengagement (engagement and disengagement) of the one protrusion 5a and the other protrusion 5b are repeated.

  That is, the side surface 5a1 (see FIG. 6) of one protrusion 5a slides so as to engage with the side surface 5b1 (see FIG. 10) of the other protrusion 5b in the rotational direction. And after one protrusion 5a gets over the other protrusion 5b and the said engagement is cancelled | released, it engages in a rotation direction again. As a result, a click feeling is imparted to the user each time the one protrusion 5a and the other protrusion 5b are engaged and disengaged.

  On the other hand, even if the filling member 1 and the operation cylinder 2 are about to rotate relative to each other in the retraction direction, the side surface 5a2 (see FIG. 6) of one projection 5a is the side surface 5b2 (FIG. 10) of the other projection 5b. The rotation of the screw cylinder 4 and the operation cylinder 2 are restricted so that the screw cylinder 4 and the operation cylinder 2 do not rotate relative to each other. As a result, the filling member 1 and the operation cylinder 2 do not rotate in the other direction (the rotation can be prevented with a rotational force (torque) below the setting).

  As described above, in the present embodiment, in a state before the inner cylindrical portion 2b of the operation cylinder 2 is inserted into the rear end cylindrical portion 4z of the screw cylinder 4, the tip end portion of the other protrusion 5b of the rear end cylindrical portion 4z. The inner diameter R1 has a smaller diameter than the outer diameter R2 of the outer peripheral surface 29 of the inner cylindrical portion 2b. As shown in FIG. 1, in the state where the inner cylindrical portion 2b is inserted into the rear end cylindrical portion 4z, the elastic force is always applied in the radial direction even when the filling member 1 and the operation cylinder 2 are relatively rotated. The other projecting portion 5b having the shape is always in contact with the outer peripheral surface 29 of the inner cylindrical portion 2b so as to engage with the one projecting portion 5a in the rotation direction.

  Therefore, in this embodiment, without increasing the number of parts, the other protrusion 5b can be always brought into contact with the one protrusion 5a and the periphery thereof, and resistance in the rotation direction can be constantly generated. . That is, the inner cylindrical portion 2b (operation cylinder 2) is held by the rear end cylinder portion 4z (screw cylinder 4), and a resistance in the rotational direction can be constantly generated between them. It is possible to suppress the play of the material extruding container 100.

  In the present embodiment, as described above, when the coating material M is advanced by relatively rotating the filling member 1 and the operation cylinder 2 in one direction, the engagement between the one protrusion 5a and the other protrusion 5b. And a click feeling can be given each time the engagement is released. As a result, the one protrusion 5a and the other protrusion 5b can be used as a click mechanism that senses the advance of the coating material M.

  Furthermore, in the present embodiment, as described above, the one protrusion 5a and the other protrusion 5b are used as the ratchet mechanism 5 that allows only relative rotation in one direction between the filling member 1 and the operation cylinder 2. be able to.

  In the present embodiment, since the operation cylinder 2 has the opening 2f as described above, when the operation cylinder 2 having the plurality of protrusions 2e is formed as described above, the operation cylinder 2 is formed in the opening 2f. Resin molding that enables the core pins D1 and D2 to be pulled out in the axial direction can be performed by using the corresponding portions. That is, by using the plurality of openings 2f, the operation cylinder 2 provided with the plurality of protrusions 2e can be easily and suitably formed.

  Further, in the present embodiment, the other protrusion 5b is rotated and rotated by 180 ° and formed as a pair at two locations. However, it is formed at three locations or a large number of locations and formed at one location. Sometimes it is done. In addition, inner diameter R1 in the case of forming in one place becomes a diameter which passes along the front-end | tip part of the other protrusion 5b centering on an axis line.

  Further, in the present embodiment, as described above, the filling member 1 can be held by the rib 7x of the cap 7 when the cap 7 is attached. Sticking can be further suppressed.

  Incidentally, in this embodiment, in the state before the internal cylindrical part 2b which comprises a 2nd cylindrical part is inserted in the rear end cylinder part 4z which comprises a 1st cylindrical part, in one protrusion 5a In the state where the outer diameter of the front end portion is larger than the inner diameter of the inner peripheral surface 49 of the rear end cylindrical portion 4z and the inner cylindrical portion 2b is inserted into the rear end cylindrical portion 4z, one of the protrusions 5a. May always be in contact with the inner peripheral surface 49.

  Further, in the present embodiment, as described above, the notch 44 is formed around the other protrusion 5b of the rear end cylindrical portion 4z to apply the elastic force to the other protrusion 5b. Or in addition, you may form a notch around the one protrusion 5a of the internal cylindrical part 2b, and may provide an elastic force to one protrusion 5a.

[Second Embodiment]
FIG. 14 is a longitudinal sectional view showing an initial state of the coating material extruding container according to the second embodiment, and FIG. 15 is a longitudinal sectional view showing a state of an advance limit of the pipe member in the coating material extruding container of FIG. 16 is a longitudinal sectional view showing a piston advance limit state in the coating material extruding container of FIG. As shown in FIG. 14, the coating material push-out container 200 of the present embodiment accommodates the coating material M and can be pushed out and pulled back as appropriate by the operation of the user.

  As the coating material M, various kinds of materials such as a lipstick, a lip gloss, an eyeliner, an eye color, an eyebrow, a lip liner, a cheek color, a concealer, a beauty stick, a hair color and the like can be used. It is possible to use stick-shaped cores such as stick-shaped cosmetics, writing utensils, etc., in particular, very soft (semi-solid, soft-solid, soft, jelly, mousse, and kneaded shapes containing these It is preferable to use a rod-like material. Further, a thin rod-shaped object having an outer diameter of 1 mm or less or a thick rod-shaped object having a diameter of 10 mm or more can be used.

  The coating material extruding container 200 includes a front tube 201 filled with a coating material M and having a discharge port 201a at the tip, and the front tube 201 is inserted into the front half of the front tube 201 so that the front tube 201 is engaged in the axial direction and the rotation direction. A main body cylinder 202 connected so as to be integrated, and an operation cylinder 203 that is relatively rotatable to the rear end portion of the main body cylinder 202 and is connected in the axial direction. The main body cylinder 202 constitutes a container front part, and the operation cylinder 203 constitutes a container rear part.

  The coating material extruding container 200 includes a moving screw cylinder 205, a moving body 206, and a piston 207 therein. The moving screw cylinder 205 constitutes a screwing member and is screwed to the leading cylinder 201 via the first screwing portion 70. The moving body 206 is engaged with the operation cylinder 203 so as to be able to rotate synchronously and move in the axial direction, and is screwed into the moving screw cylinder 205 via the second screwing portion 80. The piston 207 is an extruding part that is attached to the front end (front end) of the moving body 206, and is inserted so as to be in close contact with a pipe member 208 described later to configure (form) the rear end of the filling region X.

  Further, in the present embodiment, the coating material extruding container 200 allows the relative rotation of the pipe member 208 slidably inserted in the axial direction with respect to the front tube 201, the moving screw tube 205, and the operation tube 203 only in one direction. A ratchet mechanism 209.

  In the coating material extruding container 200, when the main body tube 202 (or the front tube 201 is acceptable) and the operation tube 203 are relatively rotated in one direction, the moving screw tube 205 is advanced by the screwing action of the first screwing portion 70. Then, when the pipe member 208 advances together with the moving body 206 and the piston 207 with respect to the front tube 201 and is further relatively rotated in one direction, the front tube 201 and the pipe member 208 are moved to the front tube 201 and the pipe member 208 by the screwing action of the second screwing portion 80. On the other hand, the moving body 206 and the piston 207 move forward. Further, when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in the other direction opposite to the one direction, the moving screw cylinder 205 is retracted by the screwing action of the first screwing portion 70, so The pipe member 208 moves backward together with the moving body 206 and the piston 207.

  The main body cylinder 202 is formed of, for example, an ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin), and has a cylindrical shape. The main body cylinder 202 has an inner peripheral surface at the center in the axial direction, and the front cylinder 201 is engaged in the rotational direction. A large number of uneven parts are arranged in the circumferential direction, and the uneven part has a predetermined length in the axial direction. It has an extended knurl 202a. Further, on the inner peripheral surface of the front end portion of the main body tube 202, an annular uneven portion (in which the uneven portions are arranged in the axial direction) 202b for engaging the front tube 201 in the axial direction is provided. A convex portion 202c extending in the circumferential direction along the inner peripheral surface is formed on the inner peripheral surface on the rear side of the main body cylinder 202 on the rear side of the knurl 202a so as to engage the operation cylinder 203 in the axial direction. Has been.

  17 is a side view showing a partially sectioned operation cylinder of the coating material extruding container of FIG. 14, FIG. 18 is a sectional view taken along line AA of FIG. 17, and FIG. 19 is an operation cylinder of FIG. FIG. As shown in FIGS. 17-19, the operation cylinder 203 is shape | molded, for example with ABS resin, and is exhibiting the bottomed cylindrical shape opened to the front. The front end side of the operation cylinder 203 is provided with a front end cylinder part (second cylindrical part) 203a whose outer diameter is made small through a step 203b on which the main body cylinder 202 is extrapolated.

  An annular convex part 213 that engages with the main body cylinder 202 in the axial direction is provided at the front part of the outer peripheral surface of the front end cylinder part 203a. In addition, the inner peripheral surface 223 of the front end cylindrical portion 203a is provided with a plurality of one protruding portions 209a that constitute ratchet teeth of the ratchet mechanism 209. These one protrusions 209a are protruded from the inner peripheral surface 223 of the front end cylinder part 203a at twelve equally spaced positions so as to protrude radially inward. The one protrusion 209a here is provided so as to have a sawtooth shape in the circumferential direction. One protrusion 209a extends along the axial direction so as to always come into contact with the other protrusion 209b, which will be described later, when the moving screw cylinder 205 advances and retreats.

  The side surface 209a1 on one side in the circumferential direction of these one protrusion 209a (the side that comes into contact with the other protrusion 209b described later when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in one direction) It is inclined with respect to the tangent plane of the inner peripheral surface 223. A side surface 209a2 on the other side in the circumferential direction of one projection 209a (a side that comes into contact with the other projection 209b described later when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in the other direction) is an inner circumferential surface 223. It is comprised so that it may become substantially perpendicular | vertical with respect to these tangent planes.

  A shaft body 233 that is engaged with the moving body 206 in the rotational direction is provided upright at the center of the bottom of the operation cylinder 203. The shaft body 233 has a non-circular outer shape. Specifically, the shaft body 233 has a non-circular cross-sectional shape including protrusions 243 arranged on the outer circumferential surface of the cylindrical body so as to project radially outward at six circumferential positions and extending in the axial direction. Has been.

  As shown in FIGS. 14 and 17, the operation tube 203 has a front end tube portion 203 a inserted into the main body tube 202, a step 203 b abutted against the rear end surface of the main body tube 202, and an annular convex portion 213. Is engaged with the convex portion 202c of the main body cylinder 202 in the axial direction so as to be relatively rotatable with respect to the main body cylinder 202 and attached to be connected in the axial direction.

  20 is a side view showing a moving screw cylinder of the coating material extruding container of FIG. 14, and FIG. 21 is a cross-sectional view showing the moving screw cylinder of FIG. As shown in FIGS. 20 and 21, the moving screw cylinder 205 is formed of, for example, POM (polyacetal resin) and has a cylindrical shape. The moving screw cylinder 205 includes a front end portion 205a on the front end side, a large diameter portion 205b connected to the rear side of the front end portion 205a, and a main body portion (first cylindrical portion) 205c connected to the rear side of the large diameter portion 205b. And have.

  The front end portion 205a is provided with a female screw 81 constituting the second screwing portion 80 in a region extending from the front end to a predetermined length on the inner peripheral surface thereof. Note that the pitch of the second screwing portion 80 is finer than the pitch of the first screwing portion 70, and the lead of the first screwing portion 70 (one rotation of relative rotation between the main body cylinder 202 and the operation cylinder 203). The propulsion amount) is set to be larger than the lead of the second screwing portion 80.

  In addition, an annular flange 215 that is in contact with the rear end surface of the pipe member 208 in the axial direction is provided at the center of the outer peripheral surface of the front end portion 205a. An annular convex portion 225 that engages the pipe member 208 in the axial direction is provided on the front side of the outer peripheral surface of the front end portion 205a. The front end portion 205a is configured to be able to expand radially outward by a pair of slits 235 that extend from the front end in a predetermined length in the axial direction and are opposed to each other. The rear end side of the slit 235 is widened so as to have a long oval shape in the circumferential direction when viewed from the side (see FIG. 20). In order to facilitate the assembly of 206, the front end portion 205a is configured to be easily expanded.

  The large-diameter portion 205b has a larger outer diameter than the front end portion 205a, and is provided in front of the central portion in the axial direction in the moving screw cylinder 205. The large-diameter portion 205b is provided with a male screw 72 constituting the first screwing portion 70 in a region extending from the rear end to a predetermined length on the outer peripheral surface thereof.

  The main body 205c has an outer diameter smaller than that of the large-diameter portion 205b, and is provided in a portion from the axial center to the rear end of the moving screw cylinder 205. The main body portion 205 c is provided with the other protrusion 209 b constituting the ratchet teeth of the ratchet mechanism 209 at a pair of positions facing each other on the outer peripheral surface 275. The other protrusion 209b engages with one protrusion 209a (see FIG. 19) in the rotational direction, and is provided so as to protrude radially outward. In the main body 205c, a U-shaped notch 245 is formed around the other protrusion 209b to communicate the inside and outside of the moving screw cylinder 205. The notch 245 causes the other protrusion 209b to have a diameter. Has elasticity in the direction.

  Specifically, the notch 245 includes a pair of slits 245a and 245b that are provided on both sides in the axial direction of the other protrusion 209b in the main body 205c and extend along the circumferential direction, and the other protrusion in the main body 205c. 209b and a slit 245c extending along the axial direction so as to be continuous with the slits 245a and 245b. The wall portion surrounded by the notch 44 in the main body portion 205c forms an arm 255 having flexibility in the radial direction, so that the other protrusion 209b disposed at the distal end portion of the arm 255 has a diameter of It has a predetermined elastic force (biasing force) in the direction.

  The side surface 209b1 on the other side in the circumferential direction of the other protrusion 209b (the side that contacts the one protrusion 209a when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in one direction) is formed in a mountain shape. It is inclined with respect to the tangent plane of the outer peripheral surface 275. The side surface 209b2 on one side in the circumferential direction of the other protrusion 209b (the side that contacts the one protrusion 209a when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in the other direction) is a tangent plane of the outer peripheral surface 275. It is comprised so that it may become substantially perpendicular | vertical.

  In addition, a spring portion 265 is provided at a rear portion of the main body portion 205c with respect to the other protrusion 209b. The spring portion 265 is a so-called resin spring that can be expanded and contracted in the axial direction, and biases the male screw 72 so that the first screwing portion 70 is screwed back. The spring portion 265 is provided by forming a slit 265a in the main body portion 205c extending spirally along the outer peripheral surface and communicating inside and outside.

  As shown in FIGS. 14 and 20, the moving screw cylinder 205 is inserted into the main body cylinder 202 and the operation cylinder 203, and the other protrusion 209 b is rotated in the rotation direction on one protrusion 209 a of the operation cylinder 203. The ratchet mechanism 209 is formed by engagement.

  FIG. 22 is a perspective view showing a moving body of the coating material extruding container of FIG. As shown in FIG. 22, the moving body 206 is formed of, for example, POM and has a cylindrical shape having a flange portion 206a on the tip side. The moving body 206 includes a male screw 82 of the second screwing portion 80 on the outer peripheral surface extending from the rear side to the rear end portion of the flange portion 206a. On the inner circumferential surface of the moving body 206, at six circumferential positions, ridges 206c that project radially and extend in the axial direction are provided so as to engage with the operation cylinder 203 in the rotational direction.

  As shown in FIGS. 14 and 22, the moving body 206 is externally inserted between the shaft body 233 of the operation cylinder 203 and the moving screw cylinder 205 from the rear end side. At this time, the moving body 206 has its male screw 82 screwed with the female screw 81 of the moving screw cylinder 205, and its protrusion 206c entered between the protrusions 243 and 243 of the shaft body 233 and engaged in the rotational direction. In this way, the operation cylinder 203 is mounted so as to be able to rotate synchronously and move in the axial direction.

  FIG. 23 (a) is a side view showing the piston of the coating material extruding container of FIG. 14, and FIG. 23 (b) is a cross-sectional view showing the piston of FIG. 23 (a). As shown in FIGS. 14 and 23, the piston 207 is formed of, for example, PP (polypropylene), HDPE (high density polyethylene), LLDPE (linear low density polyethylene), or the like. An annular protrusion 207b is provided on the inner peripheral surface of a recess 207a provided in the rear end surface of the piston 207 so as to be movable with respect to the moving body 206 by a predetermined length in the axial direction.

  Further, on the outer circumferential surface of the piston 207, convex portions 207 c are provided as regions that are in close contact with the pipe member 208 at four positions in the circumferential direction. The convex portion 207c comes into contact (close contact) with the pipe member 208 and can slide with resistance, and extends from the central portion in the axial direction to the rear end. Then, by forming a slight gap (air trap) between the convex portion 207c and the convex portion 207c in the circumferential direction and between the convex portion 207c and a cylinder hole 208s described later of the pipe member 208, the temperature change It is possible to prevent the coating material M from moving naturally due to environmental changes such as the above. The piston 207 is extrapolated to the front end portion of the moving body 206, and the annular protrusion 207b engages the moving body 206 in the axial direction, so that the moving body 206 can rotate synchronously and move in the axial direction (predetermined). Can be moved within the range.

  24 is a bottom view showing a front tube of the coating material extruding container of FIG. 14, and FIG. 25 is a cross-sectional view taken along line BB of FIG. As shown in FIGS. 24 and 25, the front tube 201 has a cylindrical shape, and the opening at the front end thereof is a discharge port 201a for allowing the coating material M to appear. The front tube 201 is formed of, for example, PET (polyethylene terephthalate) resin or ABS resin. The discharge port 201a is formed by an inclined angle surface that is inclined at a predetermined angle with respect to the axial direction. The discharge port 201a may be a flat shape formed by a vertical surface in the axial direction or a mountain shape.

  Further, on the outer peripheral surface of the front tube 201, an annular convex concave portion 201b for engaging with the annular concave and convex portion 202b of the main body tube 202 in the axial direction is provided. In addition, at the outer peripheral surface of the front tube 201, the protrusions 201g extending in the axial direction are engaged with the knurls 202a of the main body tube 202 in the rotational direction at the circumferentially equidistant positions on the rear side of the annular convex recess 201b. Is provided.

  A plurality of grooves 201c extending in the axial direction are provided on the inner peripheral surface of the front tube 201 near the rear of the central portion of the axis so as to engage with the pipe member 208 in the rotational direction. The groove part 201c here is extended in the circumferentially equal position on the inner peripheral surface of the front tube 201. On the inner peripheral surface of the front tube 201, the rear side of the groove 201c is enlarged through a step 201x, and has an inner diameter continuous with the bottom surface of the groove 201c.

  In addition, a pair of openings 211 as through holes that communicate between the inside and the outside of the front tube 201 are formed on the outer peripheral surface of the front tube 201 behind the protrusion 201g so as to face each other. The opening 211 is formed in a substantially rectangular shape when viewed from the opposite direction (see FIG. 24). Specifically, the opening 211 has a front edge extending in the circumferential direction and a spiral direction with respect to the circumferential direction. And a side edge extending along the axial direction.

  A female screw 71 of the first screwing portion 70 is continuously provided on the inner peripheral surface of the front tube 201 on the rear side of the opening 211. The female screw 71 is a ridge that extends spirally on the inner peripheral surface of the front tube 201, and is arranged in a pair so as to be rotated 180 ° around the axis at the circumferential position of the opening 211. Specifically, the female screw 71 is continuous with the opening 211 in front of the female screw 71 and is formed in a circumferential range extending from one side edge of the opening 211 to the other side edge. The spiral direction in which the protrusion as the female screw 71 extends corresponds to the spiral direction of the rear edge of the opening 211.

  The front tube 201 having such a female screw 71 can be easily and suitably resin-molded using the opening 211. For example, when the upper die, the lower die, and the core pin are assembled to each other, a predetermined space corresponding to the female screw 71 is formed by the radially inner convex portion of the upper die, the radially inner convex portion of the lower die, and the core pin. A pair can be set. After the molding (that is, after the female resin 71 is formed by filling and solidifying a predetermined space with the molten resin), the upper mold is removed so that the convex part of the upper mold is pulled out from one opening 211. It is possible to remove the core pin by sliding it straight in the axial direction after removing the lower mold radially outward so that the convex part of the lower mold is pulled out from the other opening 211 while being removed radially outward.

  As shown in FIGS. 14 and 25, the front tube 201 is inserted into the main body tube 202 from the rear side, and the annular concavo-convex portion 202b of the main body tube 202 is engaged with the annular concavo-convex portion 201b in the axial direction. The knurls 202a of the main body cylinder 202 are engaged with the protrusions 201g in the rotation direction, so that they are engaged with and attached to the main body cylinder 202 in the axial direction and the rotation direction, and are integrated with the main body cylinder 202. Further, the front tube 201 is externally inserted into the moving screw tube 205 from the rear side, and the female screw 71 is screwed with the male screw 72 of the moving screw tube 205.

  26 is a bottom view showing the pipe member of the coating material extruding container of FIG. 14 in a partially sectioned view, and FIG. 27 is a sectional view taken along the line CC of FIG. As shown in FIGS. 26 and 27, the pipe member 208 has a cylindrical shape, and the opening at the front end thereof is formed by an inclined angle surface that is inclined at the predetermined angle, like the discharge port 201a (see FIG. 14). Has been. The pipe member 208 is made of, for example, PP. The wall thickness forming the cylindrical hole 208s of the pipe member 208 is preferably constant and minimized, and is formed, for example, at 0.2 to 0.5 mm.

  A plurality of protrusions 218 extending in the axial direction are provided on the outer peripheral surface of the pipe member 208 on the rear side of the central portion in the axial direction so as to be engaged with the front tube 201 in the rotational direction. In order to facilitate alignment in the circumferential direction at the time of assembling, the protrusion 218 has four positions that are uneven in the circumferential direction (here, two of the circumferentially equal positions are shifted in the circumferential direction). ). Further, the rear end portion of the outer peripheral surface of the pipe member 208 is expanded in diameter via a step 208x. A pair of protrusions 228 protruding radially inward are provided at the rear end portion of the inner peripheral surface of the pipe member 208 so as to engage with the moving screw cylinder 205 in the axial direction.

  As shown in FIGS. 14 and 27, the pipe member 208 is inserted into the leading tube 201 and is slidable in the axial direction with respect to the leading tube 201. At this time, the groove 201c of the front tube 201 is engaged with the protrusion 218 in the rotation direction, and thereby the relative rotation of the pipe member 208 with respect to the front tube 201 is restricted. The front end of the pipe member 208 is positioned a certain amount behind the front end of the front tube 201 in the initial state, and is configured to be positioned substantially at the same position as the front end of the front tube 201 in the forward limit (FIG. 15). reference)

  The pipe member 208 is extrapolated to the front side of the moving screw cylinder 205, and its rear end surface is abutted against the flange 206 a of the moving screw cylinder 205, and the protrusion 228 is brought into contact with the annular convex part 225 of the moving screw cylinder 205. It is engaged in the axial direction, and thereby connected to the moving screw cylinder 205 in the axial direction. The piston 207 is inserted into the pipe member 208 so as to be in sliding contact.

  Here, in the present embodiment, the coating material M is filled (accommodated without a gap) so as to be filled from the inside of the cylindrical hole 208s of the pipe member 208 to the inside of the cylindrical hole 201s of the leading cylinder 201 in the initial state. That is, the filling region X filled with the coating material M is configured by the inner peripheral surface of the front tube 201, the inner peripheral surface of the pipe member 208, and the front surface of the piston 207.

  In the cylindrical hole 201 s of the front tube 201, at least the inner peripheral surface that is the inner surface of the region filled with the coating material M extends straight along the axial direction. Specifically, on the inner peripheral surface constituting the cylindrical hole 201s, the front region from the front end position of the pipe member 208 at the retreat limit (initial state) of the pipe member 208 has a step, a corner, a recess, and a depression. Etc. (hereinafter simply referred to as “steps etc.”), is not inclined with respect to the axial direction, and extends straight in parallel to the axial direction. Here, in the region filled with the coating material M, the cylindrical hole 201s has a constant circular cross section when viewed from the axial direction, and both edges are parallel to the axial direction when viewed from the side.

  In this embodiment, as shown in FIGS. 19 and 20, in the state before the front end cylinder part 203a of the operation cylinder 203 is extrapolated to the main body part 205c of the moving screw cylinder 205 (state before assembly), the main body The outer diameter R3 of the tip of the other protrusion 209b of the part 205c has a larger diameter than the inner diameter R4 of the inner peripheral surface 223 of the front end cylinder part 203a. For example, the outer diameter R3 is larger than the inner diameter R4 by a predetermined length, the outer diameter R3 is φ9.4 mm, and the inner diameter R4 is 9.0 mm. As shown in FIGS. 14 to 16, in the state where the front end cylinder part 203a is inserted into the main body part 205c (the state after assembly), the other protrusion 209b is formed on the inner peripheral surface 223 of the front end cylinder part 203a. It is always in contact with.

  Next, an example of operation | movement of the coating material extrusion container 200 is demonstrated.

  For example, in the coating material extruding container 200 in the initial state shown in FIG. 14, the front end of the pipe member 208 is positioned behind the front end of the front tube 201 by a certain amount. The cylinder hole 208s, the cylinder hole 201s of the leading cylinder 201, and the piston 207 are in close contact with each other and filled. The front surface of the protrusion 218 and the step 208x of the pipe member 208 are located farther away from the front surface and the step 201x of the groove 201c of the front tube 201, and the pipe member 208 can advance a certain amount relative to the front tube 201. It is in a state.

  In the initial state of the coating material extruding container 200, when the user removes the cap C and the main body cylinder 202 and the operation cylinder 203 are relatively rotated in one direction which is the feeding direction, the other protrusion of the moving screw cylinder 205 is provided. The side surface 209b1 (see FIG. 20) of the portion 209b abuts on the side surface 209a1 (see FIG. 19) of one protrusion 209a of the operation tube 203 and is engaged in the rotation direction, and the operation tube 203 and the moving screw tube 205 are synchronized. Rotate. Thereby, the moving screw cylinder 205 and the front cylinder 201 rotate relative to each other, and the screwing action of the first screwing portion 70 constituted by the male screw 72 of the moving screw cylinder 205 and the female screw 71 of the front cylinder 201 works. The moving screw cylinder 205 advances with respect to the front cylinder 201.

  As a result, as the moving screw cylinder 205 advances, the pipe member 208 advances together with the moving body 206 and the piston 207 with respect to the front cylinder 201, and the coating material M is fed out to the front cylinder 201 (that is, the front cylinder 201). The pipe member 208 is advanced together with the coating material M with respect to the cylinder 201), and the coating material M appears from the discharge port 201a.

  Next, as shown in FIG. 15, when the relative rotation in one direction is continued and the front end of the pipe member 208 is located at substantially the same position as the front end of the front tube 201, the front surface and the step of the protrusion 218 of the pipe member 208 208x comes into contact with the front surface of the groove 201c of the front tube 201 and the step 201x, the advancement of the pipe member 208 and the moving screw tube 205 is stopped, and the screwing action of the first screwing portion 70 is stopped, whereby the pipe member 208 and the moving screw cylinder 205 reach the forward limit.

  When the relative rotation in one direction is further continued, a rotational force larger than that before the stop is applied to the operation cylinder 203 and the moving screw cylinder 205, and the other protrusion 209b slides up the one protrusion 209a. The operation cylinder 203 and the moving screw cylinder 205 are ratchet rotated (so-called “idle rotation”). As a result, only the screwing action of the second screwing portion 80 constituted by the male screw 82 of the moving body 206 and the female screw 81 of the moving screw cylinder 205 acts, and the coating material is applied by the piston 207 in the stopped pipe member 208. M is pushed forward to advance (that is, the coating material M advances relative to the front tube 201 and the pipe member 208). Thereafter, the moving body 206 and the piston 207 reach the forward limit (see FIG. 16).

  On the other hand, for example, in the used application material extruding container 200, when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in the other direction which is the retraction direction, the side surface 209b2 of the other protrusion 209b of the moving screw cylinder 205 is used. 20 (see FIG. 20) comes into contact with the side surface 209a2 (see FIG. 19) of one protrusion 209a of the operation cylinder 203 and is locked (solidly engaged) in the rotational direction, so that the operation cylinder 203 and the moving screw cylinder 205 are connected. Synchronously rotate. As a result, the moving screw cylinder 205 and the leading cylinder 201 rotate relative to each other, the screwing action of the first screwing portion 70 acts, and the moving screw cylinder 205 moves backward with respect to the leading cylinder 201.

  As a result, along with the retraction of the moving screw cylinder 205, the pipe member 208 retreats with the moving body 206 and the piston 207 with respect to the front cylinder 201, and the coating material M is fed back with respect to the front cylinder 201 (that is, The pipe member 208 is retracted together with the coating material M with respect to the front tube 201), and the coating material M is embedded in the discharge port 201a.

  Then, when the relative rotation in the other direction is continued, the male screw 72 of the moving screw cylinder 205 is detached from the female screw 71 of the leading cylinder 201, and the screwing action of the first screwing portion 70 is released. The pipe member 208, the moving body 206, and the piston 207 reach the retreat limit. In this state, since the male screw 72 is urged forward by the contraction elastic force of the spring portion 265 (see FIG. 20), when the relative rotation in the other direction is further continued, the female screw 71 and the male screw When the click by the engagement and the disengagement of 72 is given and the retreat limit of the moving screw cylinder 205 is sensed by the user, and the relative rotation in one direction is made, the first screwing portion 70 is immediately screwed. Rejoin.

  Here, in the coating material extruding container 200 of the present embodiment, as described above, the other end of the main body 205c is in a state before the front end cylinder 203a of the operation cylinder 203 is extrapolated to the main body 205c of the moving screw cylinder 205. The outer diameter R3 of the tip of the protrusion 209b has a larger diameter than the inner diameter R4 of the inner peripheral surface 223 of the front end cylinder part 203a (see FIGS. 19 and 20). In the state where the front end cylinder portion 203a is inserted into the main body portion 205c, the other protrusion 209b having elastic force in the radial direction is always the same as the one protrusion 209a even while the moving screw cylinder 205 advances and retreats. It is always in contact with the inner peripheral surface 223 of the front end cylinder part 203a so as to engage in the rotational direction.

  Therefore, also in the present embodiment, the main body portion 205c (moving screw cylinder 205) can be held by the front end cylinder portion 203a (operation cylinder 203), and a resistance can be constantly generated between them in the rotational direction. As a result, it is possible to suppress rattling of the coating material extruding container 200.

  In the present embodiment, as described above, when the main body cylinder 202 and the operation cylinder 203 are further rotated relative to each other in one direction, the other protrusion 209b is brought inward in the radial direction by the radial elastic force of the notch 245. Since the side surface 209b1 of the other protrusion 209b is engaged with the side surface 209a1 of the one protrusion 209a in the rotational direction and slid up, and the engagement is released, Engage again in the direction of rotation. As a result, a click feeling can be imparted to the user each time the one protrusion 209a and the other protrusion 209b are engaged and disengaged. Thereby, it becomes possible to use one protrusion 209a and the other protrusion 209b as a click mechanism that senses further advancement of the coating material M.

  Furthermore, in the present embodiment, as described above, one protrusion 209a and the other protrusion 209b are used as a ratchet mechanism 209 that allows only relative rotation in one direction between the main body cylinder 202 and the operation cylinder 203. be able to.

  As described above, the coating material M is filled from the inside of the cylindrical hole 208s of the pipe member 208 to the inside of the cylindrical hole 201s of the leading cylinder 201, and on the inner peripheral surface of the cylindrical hole 201s of the leading cylinder 201. The region where at least the coating material M is filled extends straight along the axial direction. Therefore, when the pipe member 208 moves forward with respect to the front tube 201, the filled coating material M does not collapse due to the shape of the inner peripheral surface of the cylindrical hole 201s, for example, a step or the like is formed on the inner peripheral surface. In this case, it is possible to prevent the coating material M from entering or being handled in the step or the like and being destroyed. Further, even when the applied coating material M expands, when the pipe member 208 moves backward with respect to the front tube 201, it is possible to prevent the coating material M from entering or being handled at a step or the like and being destroyed.

  Therefore, according to the present embodiment, it is possible to prevent the shape of the coating material M from collapsing when the pipe member 208 moves forward and backward with respect to the front tube 201. In other words, the soft coating material M can be reliably pushed out and pulled back and can be protected.

  Further, normally, during use, a force or a bending that acts on the front end of the pipe member 208 as a fulcrum acts on the coating material M pushed out from the pipe member 208. Therefore, in order to suppress collapse of the coating material M such as breakage, it is preferable that the front end of the pipe member 208 is positioned forward (on the user side). On the other hand, if the front end of the pipe member 208 protrudes forward from the front end of the front tube 201, the tip of the pipe member 208 is likely to come into contact with the user, and there is a concern that the usability may deteriorate.

  On the other hand, in the present embodiment, as described above, the front end of the pipe member 208 is located at substantially the same position as the front end of the front tube 201 at the forward limit. Therefore, it becomes possible to position the front end of the pipe member 208 to the front most in a range where it is difficult to contact the user, and as a result, the shape of the coating material M is collapsed while improving the usability and suppressing breakage of the coating material M. Can be further suppressed.

  By the way, in this embodiment, as described above, the notch 245 is formed around the other protrusion 209b of the main body 205c and elastic force is applied to the other protrusion 209b. Thus, a notch may be formed around one protrusion 209a of the front end cylinder part 203a to apply an elastic force to the one protrusion 209a.

  Further, in the present embodiment, the front end cylindrical portion 203a constituting the second cylindrical portion is in a state before being extrapolated to the main body portion 205c constituting the first cylindrical portion, and the front end portion of the one protruding portion 209a is In a state where the inner diameter is smaller than the outer diameter of the outer peripheral surface 275 of the main body portion 205c and the front end cylinder portion 203a is inserted into the main body portion 205c, one of the protrusions 209a is always in contact with the outer peripheral surface 275. It may be.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. The present invention is modified without departing from the scope described in the claims or applied to others. It may be.

  For example, as the coating material M, for example, lip gloss, lip, eye color, eyeliner, cosmetic liquid, cleaning liquid, nail enamel, nail care solution, nail remover, mascara, anti-aging, hair color, hair cosmetics, oral care , Massage oil, square plug loosening liquid, foundation, concealer, skin cream, ink for writing instruments such as marking pens, etc. Of course, it is applicable.

  Moreover, in the said 1st Embodiment, although the front end surface is provided with the planar extrusion part 32, the thing of the bell shape tapered toward the front may be sufficient, and it may be provided with the extrusion part of various shapes. Good.

  In the second embodiment, when the main body cylinder 202 and the operation cylinder 203 are relatively rotated in one direction, the first cylinder 201 and the second cylinder 70 and 80 cooperate with each other to cooperate with the front cylinder 201. The pipe member 208 may move forward together with the coating material M. Similarly, when the pipe member 208 is relatively rotated in the other direction, the pipe member 208 is moved to the front tube 201 by the cooperation of the screwing action of the first and second screwing portions 70 and 80. On the other hand, the pipe member 208 may be retracted together with the coating material M. In the second embodiment, the first and second screwing portions 70 and 80 are provided. However, only one screwing portion is provided, and the coating material M can be extruded / retracted by the one screwing portion. Good.

  In the above description, “releasing the screwing action” means that the threads of the male screw and the female screw are disengaged from each other, and the screwing action does not work. Means that the screw threads of the male screw and the female screw come into contact with each other in a state where they are engaged and meshed with each other, so that the screwing does not work. “Screw return” means a stage in which the male screw returns until it contacts the side surface of the female thread.

  Further, “substantially the same position” at the front end of the pipe member 208 and the front end of the front tube 201 includes substantially the same position in addition to the completely equal position, and errors in design, manufacturing, and assembly are included. Is included. For example, the front end of the pipe member 208 may be positioned slightly forward or rearward with respect to the front end of the front tube 201.

  Further, the male screw and the female screw described above are not only a screw thread or a screw groove, but also a thread group or a screw groove such as an intermittently arranged protrusion group or a spiral and intermittently disposed protrusion group. It may be one that performs a similar function. The cross-sectional shape of the coating material M is the cross-sectional inner diameter shape of the cylindrical hole 201s of the front tube 201 and the cylindrical hole 208s of the pipe member 208. In addition to the circular cross-section, an elliptical shape, a track shape, and many rounded vertices are used. Various non-circular cross-sectional shapes such as square and drop shapes can also be selected. Moreover, this invention can also be grasped | ascertained as a manufacturing method for manufacturing (molding) the coating material extruding containers 100 and 200.

  DESCRIPTION OF SYMBOLS 1 ... Filling member (container front part), 2 ... Operation cylinder (container rear part), 2b ... Internal cylindrical part (2nd cylindrical part), 2c, 233 ... Shaft body, 2e ... Protrusion, 2f ... Opening part, 3 , 206 ... moving body, 4 ... screw cylinder (screwing member), 4z ... rear end cylinder part (first cylindrical part), 5,209 ... ratchet mechanism (click mechanism), 5a, 209a ... one protrusion, 5b, 209b ... the other protrusion, 6 ... the threaded portion, 29 ... outer peripheral surface (outer surface of the second cylindrical portion), 44, 245 ... notch, 49 ... inner peripheral surface (inner surface of the first cylindrical portion) , 70 ... 1st screwing part (screwing part), 71 ... Female screw, 72 ... Male screw, 80 ... 2nd screwing part (screwing part), 81 ... Female screw, 82 ... Male screw, 100,200 ... coating material extruding container, 201 ... front cylinder (container front part), 202 ... main body cylinder (container front part), 203 ... operation cylinder (container rear part), 203a ... front end cylinder part (second cylindrical part), 2 DESCRIPTION OF SYMBOLS 5 ... Moving screw cylinder (screwing member), 205c ... Main-body part (1st cylindrical part), 223 ... Inner peripheral surface (inner surface of 2nd cylindrical part), 265 ... Spring part, 265a ... Slit, 275 ... Outer periphery Surface (outer surface of first cylindrical portion), M: coating material.

Claims (3)

A container including a container front part and a container rear part is provided with a moving body and a screwing member, and the container front part and the container rear part are rotated relative to each other in one direction, whereby the container front part and the screwing member are provided. An application material extruding container in which the screwing action of the first screwing part and the screwing action of the second screwing part of the moving body and the screwing member work and the moving body moves forward,
The screw member is
A first tubular portion;
A male screw that is screwed into the female screw at the front of the container and constitutes the first screwed portion;
A female screw that is screwed into the male screw of the movable body and constitutes the second screwed portion;
In a state where the container front part and the container rear part are relatively rotated in the other direction and the screwing action of the first screwing part is released, the male screw of the screwing member is moved to the female screw of the container front part. A spring portion biasing to the side,
The container rear part has a second cylindrical part inserted or extrapolated in the first cylindrical part,
The second cylindrical portion is provided with one protrusion protruding in the radial direction,
The first cylindrical portion is provided with the other protrusion that protrudes in the radial direction and engages the one protrusion in the rotational direction,
At least one of the one protrusion and the other protrusion has elasticity in a radial direction by a notch formed around the protrusion,
The male screw and female screw of the screwing member, and the other protrusion are arranged on one side in the axial direction with respect to the spring part ,
When the container front part and the container rear part are relatively rotated in one direction, the one protrusion and the other protrusion are engaged, and the container rear part and the screwing member rotate synchronously, and the screw The joint member and the container front part rotate relative to each other, and the screwing action of the first screwing part works,
When the container front portion and the container rear portion are further relatively rotated in one direction, after the screwing action of the first screwing portion is stopped, the other protrusion gets over the one protrusion, and the container A coating material extruding container in which a rear portion and the screwing member rotate relative to each other and the screwing action of the second screwing portion works .   2. The coating material extruding container according to claim 1, wherein the one protrusion extends along the axial direction so as to always come into contact with the other protrusion when the screwing member advances and retreats.   The said spring part is a coating material extrusion container of Claim 1 or 2 in which the slit which extends helically along an outer peripheral surface and connects the inside and outside is formed.

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