JP2012187132A - Coating material-extruding container - Google Patents

Abstract

An object of the present invention is to reliably realize a forward movement of a moving body and a backward movement of a certain amount with a simple structure.
In a coating material extruding container 100, when a main body cylinder 2 and an operation cylinder 3 are relatively rotated in one direction, a moving body 6 moves forward. It retreats and has a ratchet member 5 and a ratchet mechanism. The vertical rib 5e of the ratchet member 5 is engaged with the screw cylinder 4 in the rotation direction when the main body cylinder 2 and the operation cylinder 3 are relatively rotated, and the screw cylinder 4 and the ratchet member 5 are only in a constant rotation amount A1. These relative rotations are regulated so that they can be rotated relative to each other. The ratchet mechanism regulates relative rotation between the ratchet member 5 and the operation cylinder 3 and is a case where the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, and the relative relationship between the screw cylinder 4 and the ratchet member 5. After the rotation is restricted by the vertical ribs 5e, relative rotation between the ratchet member 5 and the operation cylinder 3 is allowed.
[Selection] Figure 9

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, as described in Patent Document 1, a container having a container front part and a container rear part rotatable relative to the container front part is provided. When the rear part is relatively rotated in one direction, the moving body arranged in the container moves forward, and the coating material filled in the filling region in the container is pushed out and discharged from the opening at the tip of the container. It has been. In such a coating material extruding container, for example, when the container front part and the container rear part are relatively rotated in the other direction which is the opposite direction of one direction after use, the moved moving body moves backward by a certain amount. Thereby, when the coating material in the filling region expands, the coating material is prevented from leaking from the opening.

JP 2007-130438 A

  Here, in the above-described coating material extruding container, the first screwing portion and the second screwing portion are used (that is, a plurality of screwing portions are used), and the first screwing portion is screwed. By stopping the combined action, only a certain amount of reversal of the moving body is realized. In this respect, in recent coating material extrusion containers, simplification of the structure is desired, and for example, a container structure with few screwing portions is required. In addition, if a plurality of screwed portions are used to achieve a certain amount of retraction, for example, the screw thread of the screwed portion exhibits a three-dimensional space curve (spiral shape) that is difficult to manufacture. It may be difficult to move backwards.

  Then, this invention makes it a subject to provide the coating material extrusion container which can implement | achieve advancing of a moving body and retraction of only a fixed amount reliably with a simple structure.

  In order to solve the above problems, an application material extrusion container according to the present invention includes a container having a container front part and a container rear part rotatable relative to the container front part, and the container front part and the container rear part are integrated. When the relative rotation is performed in the direction, the moving body arranged in the container moves forward, pushes out the coating material filled in the filling region in the container, and discharges it from the opening at the front end of the container. Is a coating material extruding container in which the advanced moving body moves backward by a certain amount, and the relative rotation in one direction between the container front and the container rear is performed. Rotation permitting means for allowing only a certain rotation amount corresponding to a certain amount of relative rotation in the other direction between the container front portion and the container rear portion is provided, and the rotation permission means is relative to the container front portion by a certain rotation amount. Controls the rotatable cylinder member and the relative rotation between the cylinder member and the rear of the container A rotation control mechanism, and the cylindrical member engages with the container front part in the rotation direction when the container front part and the cylinder member are relatively rotated, so that the container front part and the cylinder member rotate at a constant rotation. Including an engaging portion that restricts the relative rotation so that only the amount can be relatively rotated, and the rotation control mechanism restricts the relative rotation between the cylindrical member and the container rear portion, and the container front portion and the container rear portion are unidirectional. In this case, after the relative rotation between the front portion of the container and the cylindrical member is restricted by the engaging portion, the relative rotation between the cylindrical member and the rear portion of the container is allowed.

In the coating material extruding container according to the present invention, the relative rotation between the container front part and the container rear part is allowed in one direction by the rotation permitting means and only a fixed amount of rotation is allowed in the other direction, thereby moving the moving body forward. And only a certain amount can be retracted.
That is, for example, when the container front part and the container rear part are relatively rotated in one direction from the initial state, the rotation control mechanism restricts the relative rotation between the cylinder member and the container rear part, and the cylinder member is attached to the container front part together with the container rear part. As a result, the movable body moves forward by a certain amount. When the relative rotation continues in one direction, the engagement portion engages with the container front in the rotation direction and the relative rotation between the tube member and the container front is restricted, but the rotation control mechanism controls the tube member and the container rear. Is allowed to rotate relative to the front of the container and the cylindrical member, and as a result, the moving body continues to advance.
On the other hand, when the container front part and the container rear part are relatively rotated in the other direction after the moving body has advanced, the rotation control mechanism restricts the relative rotation between the cylinder member and the container rear part, so that the cylinder member and the container rear part together with the container rear part As a result, the movable body moved forward moves backward by a certain amount. When the relative rotation is continued in the other direction, the engaging portion engages with the container front portion in the rotation direction and the relative rotation between the tube member and the container front portion is restricted. As a result, the rotation control mechanism controls the tube member. Since the relative rotation between the container and the rear part of the container is restricted, the relative rotation between the front part of the container and the rear part of the container is restricted, and these cannot be rotated relative to each other. Therefore, the moving body does not retreat further, and as a result, the moving body retreats by a certain amount.
As described above, in the present invention, for example, the moving body can be advanced and retracted by a certain amount without using a plurality of screwing portions, and thus the moving body can be advanced and retracted only by a certain amount with a simple structure. It is possible to realize with certainty.

  The rotation control mechanism is a ratchet mechanism configured to include one ratchet tooth provided on the cylindrical member and the other ratchet tooth provided on the rear portion of the container, and the one and other ratchet teeth are Engage in the rotation direction to regulate the relative rotation between the cylindrical member and the container rear part, and the relative rotation between the container front part and the cylindrical member when the container front part and the container rear part are relatively rotated in one direction. When the cylindrical member and the container rear portion are relatively rotated with a rotational force equal to or greater than a predetermined rotational force after the engagement portion is regulated by the engaging portion, the cylindrical member and the container rear portion are repeatedly engaged and disengaged in the rotational direction. It is preferable to allow relative rotation of the. In this case, when the moving body moves forward, a click feeling can be given to the user each time the one and other ratchet teeth are engaged and disengaged.

  The coating material extruding container according to the present invention includes a container having a container front part and a container rear part rotatable relative to the container front part, and the container front part and the container rear part are relatively rotated in one direction. Then, the moving body arranged in the container moves forward, pushes out the coating material filled in the filling region in the container and discharges it from the opening at the front end of the container, and the container front part and the container rear part are in one direction. A coating material extruding container in which the moving body that has advanced moves backward by a certain amount when rotated relative to the other direction, which is the opposite direction, allowing relative rotation in one direction between the container front and the container rear, and the container Rotation permitting means that allows relative rotation of the front portion and the container rear portion in the other direction only by a certain rotation amount corresponding to a certain amount, and the rotation permission means includes a cylindrical member that can be relatively rotated only by a certain rotation amount with respect to the container rear portion. A rotation control mechanism for controlling relative rotation between the container front portion and the cylindrical member; The cylindrical member is engaged with the container rear part in the rotational direction when the cylinder member and the container rear part are rotated relative to each other so that the cylinder member and the container rear part can be rotated relative to each other only by a fixed rotation amount. The rotation control mechanism is a case in which the relative rotation between the container front part and the cylindrical member is restricted and the container front part and the container rear part are relatively rotated in one direction. Then, after the relative rotation between the cylindrical member and the container rear portion is restricted by the engaging portion, the relative rotation between the container front portion and the cylindrical member is allowed.

  In the coating material extruding container of the present invention as well, for example, the moving body can be advanced and retracted by a certain amount without using a plurality of screwing portions, for example. Therefore, it is possible to reliably realize the backward movement only with a simple structure.

  The rotation control mechanism is a ratchet mechanism including one ratchet tooth provided on the cylindrical member and the other ratchet tooth provided on the front portion of the container, and the one and other ratchet teeth are Engaging the rotation direction to regulate the relative rotation between the container front part and the cylinder member, and the case where the container front part and the container rear part are relatively rotated in one direction. After the rotation is restricted by the engaging portion, when the container front portion and the cylindrical member are relatively rotated with a rotational force equal to or greater than a predetermined rotational force, the container front portion and the container front portion are repeatedly engaged and disengaged in the rotational direction. It is preferable to allow relative rotation with the cylindrical member. In this case, similarly to the above, when the moving body moves forward, it is possible to give a click feeling to the user each time one and the other ratchet teeth are engaged and disengaged.

  At this time, it is preferable that the rotation control mechanism includes a soft portion that functions as a cushioning material in engagement and disengagement of the one and other ratchet teeth. In this case, it is possible to make the sound quality of the resulting click feeling more profound (softening) in the soft part.

  Further, the rotation control mechanism may include a spring portion that is provided integrally with or separately from the cylindrical member and applies an urging force in the axial direction to one and the other ratchet teeth.

  According to the present invention, it is possible to reliably realize the forward movement of the moving body and the backward movement of a certain amount with a simple structure.

It is a vertical side surface which shows the initial state of the coating material extrusion container which concerns on one Embodiment of this invention. It is a vertical side view which shows the state of the advance limit of a moving body in the coating material extrusion container of FIG. FIG. 2 is an exploded perspective view showing a partial section of the coating material extruding container of FIG. 1. It is a partial cross section perspective view which shows the operation cylinder of the coating material extrusion container of FIG. It is a perspective view which shows the screw cylinder of the coating material extrusion container of FIG. It is sectional drawing along the VI-VI line of FIG. It is a perspective view which shows the ratchet member of the coating material extrusion container of FIG. (A) is a front view which shows the ratchet member of the coating material extrusion container of FIG. 1, (b) is a left view which shows the ratchet member of the coating material extrusion container of FIG. It is sectional drawing along the IX-IX line of FIG. 1 for demonstrating the ratchet member of the coating material extrusion container of FIG. It is a disassembled perspective view which shows the filling member of the coating material extrusion container of FIG. (A) is a front view which shows the nib member in the coating material extrusion container of FIG. 1, (b) is a bottom view which shows the nib member in the coating material extrusion container of FIG. (A) is a front view which shows the modification of the ratchet member in the coating material extrusion container of FIG. 1, (b) is the left view which shows the modification of the ratchet member in the coating material extrusion container of FIG. It is sectional drawing corresponding to the IX-IX line of FIG. 1 for demonstrating the modification of the ratchet member of the coating material extrusion container of FIG. It is a perspective view which shows the other modification of the ratchet member in the coating material extrusion container of FIG. (A) is a front view which shows the other modification of the ratchet member in the coating material extrusion container of FIG. 1, (b) is a left view which shows the other modification of the ratchet member in the coating material extrusion container of FIG. . It is sectional drawing corresponding to the IX-IX line of FIG. 1 for demonstrating the other modification of the ratchet member of the coating material extrusion container of FIG. It is sectional drawing corresponding to the IX-IX line of FIG. 1 for demonstrating the modification of the ratchet member and screw cylinder of the coating material extrusion container 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.

  FIG. 1 is a longitudinal side view showing an initial state of a coating material extruding container according to an embodiment of the present invention, FIG. 2 is a longitudinal side view showing a state of an advance limit of a moving body in the coating material extruding container of FIG. FIG. 2 is an exploded perspective view showing a partial section of the coating material extruding container of FIG. 1. 2 is a longitudinal sectional view in which the longitudinal sectional position in FIG. 1 is different by 90 °. As shown in FIGS. 1-3, the coating material extrusion container 100 of this embodiment discharges (extrudes) the coating material M with which it was filled suitably by a user's operation.

  Examples of the coating material M include eyeliner, eye color, eye shadow, eyebrow, lip gloss, lip, lip liner, cheek color, cosmetic liquid, cosmetic stick, cleaning liquid, cleansing oil, nail enamel, nail care solution, nail remover, Various liquids such as mascara, anti-aging, hair color, hair coating, oral care, massage oil, square plug loosening liquid, foundation, concealer, skin cream, writing utensils, etc. Gel (gel), paste, soft, mousse, kneaded, mud, semi-solid, soft solid, solid and the like can be used. In addition to pigments, oils, waxes, etc., the coating material M is blended with a volatile solvent (for example, silicon oil such as cyclopentasiloxane, or hydrocarbon oils such as isododecane and isohexadecane). Can improve the goodness.

  Further, as the coating material M, it is preferable to use a gel or semi-solid material having high viscosity or hardness and high compressibility, and particularly preferably a coating having a hardness of about 0.1N to 0.2N. The material M can be used. 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 having a diameter of 3 mm is applied to the coating material M at a speed of 6 cm / min under an ambient temperature of 25 ° C. The peak force (strength) generated in the coating material M when the depth of about 10 mm is inserted is defined as hardness (penetration).

  The coating material extruding container 100 includes a filling member 1 that is a tip cylinder provided with a filling region 1x filled with the coating material M, and a filling member 1 in which the latter half of the filling member 1 is inserted into the front half thereof. Are engaged with each other in the axial direction (front-rear direction) and the rotational direction around the axial line (hereinafter also simply referred to as “rotational direction”), and are connected so as to be integrated with each other, and the rear end portion of the main body cylinder 2 is relatively rotated. An operating cylinder 3 that can be connected in the axial direction is provided as an outer configuration. In addition, the filling member 1 and the main body cylinder 2 constitute a container front part, and the operation cylinder 3 constitutes a container rear part. The “axis” means a center line extending in the front-rear direction of the coating material extruding container 100 (hereinafter the same).

  The coating material extruding container 100 includes therein a moving body 6 that moves in the axial direction by relative rotation between the main body cylinder 2 (or the filling member 1) and the operation cylinder 3, and a front end (tip) portion of the moving body 6. , A piston 7 that forms the rear end of the filling region 1x, a screw cylinder 4 as a screwing member that enables movement of the moving body 6 by the relative rotation, and only a fixed amount of rotation with respect to the screw cylinder 4. A relatively rotatable ratchet member (cylinder member) 5 and a ratchet mechanism (rotation control mechanism) 8 for controlling relative rotation between the ratchet member 5 and the operation cylinder 3 are roughly provided.

  The main body cylinder 2 is formed in a cylindrical shape, and a large number of irregularities are arranged in the circumferential direction on the inner peripheral surface of the central portion in the axial direction so as to engage the filling member 1 and the screw cylinder 4 in the rotation direction. The concavo-convex shape is provided and has a knurl 2a extending a predetermined length in the axial direction. An annular protrusion 2 b for engaging the filling member 1 in the axial direction is provided on the inner peripheral surface of the distal end portion of the main body cylinder 2. A protrusion 2c extending along the circumferential direction is formed on the inner peripheral surface on the rear side of the main body cylinder 2 to engage the operation cylinder 3 in the axial direction. Further, on the inner peripheral surface of the main body cylinder 2, a protrusion 2d extending along the circumferential direction is formed on the front side of the protrusion 2c to engage the screw cylinder 4 in the axial direction.

  4 is a partial cross-sectional perspective view showing an operation cylinder of the coating material extruding container of FIG. As shown in FIG. 4, the operation cylinder 3 is configured in a bottomed cylindrical shape, and includes a front end cylinder part 3 a having a small outer diameter on the front end side, and an outer peripheral surface of the front end cylinder part 3 a includes a main body. An annular groove 3b for engaging with the protrusion 2c of the tube 2 in the axial direction is provided. A shaft body 3 c is erected at the center of the bottom of the operation cylinder 3. The shaft body 3c has a non-circular cross section (cross section orthogonal to the axial direction) having a plurality of protrusions 3d extending in the axial direction on the outer peripheral surface of the cylindrical body. One of the above.

  Further, the operation cylinder 3 is provided with ridges 3e extending from the bottom toward the tip side at equal circumferential positions on the inner peripheral surface thereof. The tip of the ridge 3 e is a ratchet tooth 8 a constituting the ratchet mechanism 8. The tip end surfaces of these ratchet teeth 8a have a protruding height that decreases as they go to one side in the circumferential direction (the side on which the ratchet arm 52 abuts when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction). It is inclined with respect to the plane orthogonal to the axial direction. As shown in FIG. 1, the operation cylinder 3 is inserted into the main body cylinder 2 from the front end cylinder portion 3 a, and the annular groove portion 3 b is engaged with the protrusion 2 c of the main body cylinder 2. Relatively rotatable and connected in the axial direction.

  5 is a perspective view showing a screw cylinder of the coating material extruding container of FIG. 1, and FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. As shown in FIGS. 5 and 6, the screw cylinder 4 is configured in a stepped cylindrical shape, and includes an outer diameter large diameter portion 4 a and an outer diameter small diameter portion 4 b on the front side thereof via a stepped portion 4 p. Yes. In this screw cylinder 4, the inner diameter is increased in a stepped shape so as to follow the outer diameter from the front to the rear, and the inner diameter of the rear end portion 4 x of the outer diameter large diameter portion 4 a is further stepped. The diameter has been expanded. On the outer peripheral surface of the outer diameter / large diameter portion 4a, ridges 4c are formed at a plurality of positions in the circumferential direction to engage with the knurls 2a of the main body cylinder 2 in the rotational direction. Further, on the outer peripheral surface of the rear end portion 4x of the outer diameter large diameter portion 4a, an annular convex portion 4d for engaging with the protrusion 2d of the main body cylinder 2 in the axial direction is formed.

  A female screw 4e constituting one of the screwing portions 9 is provided on the inner peripheral surface of the outer diameter small diameter portion 4b. The pitch of the screwing portions 9 here is a fine pitch, for example, 0.4 mm. A flange portion 4y is provided at the front end portion of the outer peripheral surface of the small outer diameter portion 4b so as to prevent the inner diameter of the female screw 4e from expanding near the filling member 1 (see FIG. 1). In addition, a pair of slits 4f penetrating in the radial direction and extending a predetermined length in the axial direction are formed at the front end portions of the outer diameter large diameter portion 4a and the outer diameter small diameter portion 4b so as to face each other.

  Further, on the inner peripheral surface of the rear end portion 4x of the outer diameter large diameter portion 4a, there are provided vertical ribs (ribs) 4g having a predetermined width in the circumferential direction and protruding radially inward. The vertical rib 4g engages and locks with a vertical rib 5e (described later) of the ratchet member 5, and functions as an engaging portion that restricts (limits) the rotatable range of the ratchet member 5, and thus functions as a locking portion. It is. The vertical rib 4g extends from the front end to the rear end of the rear end portion 4x along the axial direction. One vertical rib 4g is provided at an arbitrary position in the circumferential direction on the inner peripheral surface of the rear end portion 4x. Further, the protruding height position of the vertical rib 4g is the same as or lower than the inner peripheral surface other than the rear end portion 4x of the outer diameter large diameter portion 4a.

  As shown in FIG. 1, the screw cylinder 4 is inserted into the main body cylinder 2, and the annular protrusion 4 d engages with the protrusion 2 d of the main body cylinder 2, and the protrusion 4 c is a knurl of the main body cylinder 2. By being engaged with 2a, the main body cylinder 2 is mounted so as to be engaged and integrated with each other in the axial direction and the rotational direction.

  7 is a perspective view showing the ratchet member of the coating material extruding container of FIG. 1, FIG. 8 (a) is a front view showing the ratchet member of the coating material extruding container of FIG. 1, and FIG. 8 (b) is the coating material of FIG. FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 1 for explaining the ratchet member of the coating material extruding container of FIG. 1. . As shown in FIGS. 7 and 8, the ratchet member 5 is an injection-molded product made of resin, and is configured in a substantially cylindrical shape. On the rear end surface of the ratchet member 5, a plurality of ratchet teeth 8 b that are engaged with the ratchet teeth 8 a of the operation cylinder 3 as a ratchet mechanism 8 are provided along the circumferential direction. Here, the ratchet teeth 8 b are projected from the rear end surface of the ratchet member 5 at positions that are equally spaced in the circumferential direction.

  These ratchet teeth 8b form a sawtooth shape (wedge shape) along the circumferential direction and protrude from the rear end surface. Specifically, the side surface 8b1 on one side in the circumferential direction of the ratchet teeth 8b (the side that comes into contact with the ratchet teeth 8a when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction) has a mountain shape in the circumferential direction. It is inclined with respect to the rear end face. On the other hand, the side surface 8b2 of the other side in the ratchet teeth 8b in the circumferential direction (the side that contacts the ratchet teeth 8a when the main body tube 2 and the operation tube 3 are relatively rotated in the other direction) is orthogonal to the rear end surface and along the axial direction. It is erected on the rear end surface so as to extend.

  A substantially spiral slit 5a is formed in the peripheral wall at the front end portion of the ratchet member 5, whereby the front end portion of the ratchet member 5 biases the ratchet teeth 8b toward the rear side of the ratchet teeth 8a. It functions as a spring part 5b. Further, an annular flange 5c is provided on the rear side of the outer peripheral surface of the ratchet member 5. Further, an O-ring R1 is disposed so as to be sandwiched between the flange 5c and the front end surface of the operation cylinder 3 (see FIG. 1).

  Further, on the rear side of the flange portion 5c on the outer peripheral surface of the ratchet member 5, an O-ring groove 5d that extends in an annular shape is provided so as to be continuous with the flange portion 5c, for mounting the O-ring R1. . The O-ring R1 is for giving a solid feeling to the click feeling described later by the ratchet mechanism 8, and is an annular elastic body (functioning as a cushioning material (cushion) in engagement and disengagement of the ratchet teeth 8a and 8b). Functions as a soft part). Further, on the front side of the flange portion 5c on the outer peripheral surface of the ratchet member 5, a vertical rib (rib) 5e having a predetermined width in the circumferential direction and protruding outward in the radial direction is provided so as to continue to the flange portion 5c. .

  The vertical rib 5e engages and locks with the vertical rib 4g of the screw cylinder 4, and functions as an engaging portion that restricts (limits) the rotatable range of the ratchet member 5, and thus as a locking portion. The vertical rib 5e extends for a predetermined length along the axial direction. Here, one vertical rib 4g is provided at an arbitrary position in the circumferential direction on the outer peripheral surface of the ratchet member 5 so as to extend from the rear side position of the spring portion 5b to the flange portion 5c.

  As shown in FIG. 1, the ratchet member 5 is accommodated in the outer diameter large diameter portion 4 a of the screw cylinder 4 so that the front end surface thereof is in contact with the stepped portion 4 p of the screw cylinder 4. When rotated, the vertical rib 5e can engage with the vertical rib 4g of the screw cylinder 4 in the rotational direction. Specifically, as shown in FIGS. 1 and 9, the ratchet member 5 is restricted in relative rotation by the vertical ribs 4g and 5e so that the screw cylinder 4 and the ratchet member 5 can be relatively rotated only by a fixed rotation amount A1. In this state, the screw cylinder 4 is assembled.

  That is, the ratchet member 5 is attached to the screw cylinder 4 so as to be relatively rotatable only by a constant rotation amount A1, and the distance between the longitudinal ribs 4g and 5e in the circumferential direction is a maximum constant rotation amount A1. The constant rotation amount A1 is set based on, for example, the viscosity or hardness of the coating material M, the temperature change of the coating material M, the pitch of the screwing portion 9, the inner diameter of the filling region 1x, etc. The angle is 330 °.

  In this state, the ratchet member 5 has its ratchet teeth 8b engaged with the ratchet teeth 8a of the protrusion 3e of the operation cylinder 3, and is clamped in the axial direction by the cooperation of the protrusion 3e and the step portion 4p. Thus, an urging force (elastic force) is generated by the spring portion 5b, the ratchet teeth 8b are urged rearward, and the ratchet teeth 8a, 8b are in a click-engaged state. At this time, the O-ring R1 is fitted into the O-ring groove 5d of the ratchet member 5, and the O-ring R1 is interposed between the rear surface of the flange portion 5c and the front end surface of the operation cylinder 3 in the axial direction.

  Returning to FIGS. 1 to 3, the movable body 6 is formed in a cylindrical shape, and includes a male screw 6 b constituting the other of the screwing portion 9 on the outer peripheral surface extending from the rear side to the rear end portion from the front end portion thereof. . Further, on the inner peripheral surface of the moving body 6, a ridge 6 c is provided at six positions along the circumferential direction so as to protrude radially inward and extend in the axial direction. The other of the rotation stop portions of the moving body 6 is configured. The movable body 6 is inserted into the shaft body 3 c of the operation cylinder 3 and inserted into the screw cylinder 4, and the male screw 6 b is screwed with the female screw 4 e of the screw cylinder 4. At the same time, the moving body 6 is mounted so that its protrusion 6c is engaged between the protrusions 3d and 3d of the shaft 3c, and is movable in the axial direction so as to be movable in the axial direction.

  The piston 7 is made of TPEE (polyester elastomer), TPU (polyurethane elastomer), PP (polypropylene), HDPE (high density polyethylene), LLDPE (straight chain) having a color tone (for example, white) different from the color tone of the coating material M. Shaped low-density polyethylene) or the like, and has a recess 7a recessed in the rear end face. An annular protrusion 7b is provided on the inner peripheral surface of the recess 7a so as to be movable with respect to the moving body 6 by a predetermined length in the axial direction. The piston 7 is extrapolated to the front end portion of the moving body 6, and the annular protrusion 7 b engages the moving body 6 in the axial direction so that the moving body 6 can move in the axial direction (within a predetermined range). It can be moved).

  FIG. 10 is an exploded perspective view showing a filling member of the coating material extruding container of FIG. As shown in FIGS. 1 and 10, the filling member 1 is made of, for example, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexanedimethylene terephthalate (PCTA), polypropylene ( The outer filling cylinder 10 is formed of an injection molded plastic such as PP), forms an outer periphery, the inner filling cylinder 11 that defines the filling region 1x inside the outer filling cylinder 10, and the tip of the filling member 1 And a pen tip member 12 for applying the coating material M.

  The outer filling cylinder 10 is formed of a coloring material (for example, black), and has a cylindrical main body 10a and a tapered portion 10b continuous to the front side of the main body 10a. The main body 10 a has an annular recess 10 c that engages with the annular protrusion 2 b of the main body cylinder 2 in the axial direction at the center in the axial direction on the outer peripheral surface thereof. The main body 10a is provided with an annular flange 10d that abuts against the front end surface of the main body cylinder 2 on the front side of the annular recess 10c on the outer peripheral surface thereof. In the outer peripheral surface of the main body portion 10a, the rear end portion is engaged with the knurl 2a of the main body cylinder 2 in the rotational direction, and a large number of uneven shapes are arranged in the circumferential direction, and the uneven shapes are predetermined in the axial direction. A long knurl 10e is provided.

  Further, the main body portion 10a penetrates the peripheral wall of the rear end portion in a rectangular shape so as to confirm the position where the coating material M is filled when the coating material M is filled and to engage the inner filling cylinder 11. A window 10f made of a through hole is formed. The tapered portion 10b has a tapered truncated cone shape, and the outer cross-sectional shape is a flat circular shape. An opening 10g having a flat circular cross section is formed at the front end of the tapered portion 10b.

  The inner filling cylinder 11 is formed of a transparent material, and has a light transmission property such that the coating material M in the filling region 1x inside thereof can be seen through. The inner filling cylinder 11 includes a cylindrical main body portion 11a, a tapered portion 11b continuous to the front side of the main body portion 11a, and a front end portion 11d continuous to the front side of the tapered portion 11b via a step portion 11c. Have.

  The main body 11a has an air discharge hole 11e for discharging the air in the filling region 1x to the outside during assembly. A pair of air discharge holes 11e are formed so as to penetrate in a circular cross section at positions facing each other on the peripheral wall of the rear end portion of the main body portion 11a. A convex portion 11f that engages the window 10f of the outer filling cylinder 10 in the axial direction is provided on the rear side of the air discharge hole 11e on the outer peripheral surface of the main body portion 11a. In addition, an O-ring groove 11g extending in an annular shape is provided on the outer peripheral surface of the main body 11a on the front side of the air discharge hole 11e so as to mount the O-ring R2. The O-ring R2 functions as an annular elastic body (soft portion) that increases the airtightness of the filling member 1 and prevents the coating material M from being transmitted to the outside.

  The taper portion 11b has a tapered truncated cone shape in which the outer diameter of the cross section is a flat circular shape. The front end portion 11d has a cylindrical shape in which the outer diameter of the cross section is a flat circular shape. As shown in FIG. 1, the inner filling cylinder 11 is inserted and attached to the outer filling cylinder 10. At this time, the O-ring R2 is fitted in the O-ring groove 11g of the inner filling cylinder 11, so that the rear end side between the inner peripheral surface of the outer filling cylinder 10 and the outer peripheral surface of the inner filling cylinder 11 is O. Sealed and hermetically sealed with a ring R2.

  11A is a front view showing a pen point member in the coating material extruding container of FIG. 1, and FIG. 11B is a bottom view showing the pen point member in the coating material extruding container of FIG. As shown in FIG. 11, the pen point member 12 is for applying the coating material M, and is formed of a soft material. As the soft material, for example, a thermosetting general rubber that is heated and molded by vulcanization, or a thermoplastic elastomer that is a kind of plastic and is plasticized by heat and poured into a mold can be used. .

  General rubbers include nitrile rubber (NBR), butyl rubber (IIR), ethylene propylene rubber (EPDM), and silicon rubber (Si). Among them, nitrile rubber is particularly excellent in oil resistance against the volatile solvent described above. The thermoplastic elastomer mainly includes polyester elastomer (TPEE), olefin elastomer (TPO), and urethane elastomer (TPU). Among them, in the urethane-based elastomer, the hard segment can be polyurethane and the soft segment can be any of polyester type or polyether type. For the coating material M, the soft segment has a polyether type. Especially suitable.

  The nib member 12 preferably has a hardness of 30 to 70 according to a type A durometer defined in JIS K 6253. The pen tip member 12 includes a pointed pen tip 13 on the distal end side, and a base end portion 16 that continues to the base end side of the pen tip 13 via a stepped portion 14.

  The pen tip 13 has a flat cross-sectional outer shape and is formed in a blade shape in a side view. In the flat circle of the cross-sectional outline here, the vertical direction in FIG. 11A is the major axis direction, and the vertical direction in FIG. 11B is the minor axis direction. In the pen tip 13, an application surface S that is in contact with an application target such as a user's skin is formed by the tip surface thereof. The application surface S is a flat circular curved surface that swells forward and is elongated in the front-rear direction, and a vertex P is formed at the tip thereof.

  Further, on both side surfaces of the pen tip 13, tapered surfaces 17 are formed so as to be tapered toward the application surface S side in regions extending from the outer edge of the application surface S to the base end side of a predetermined length. A penetrating hole 18 having a circular cross section extending along the axial direction is formed at the axial position of the pen tip 13. The opening portion of the coating surface S in the through hole 18 constitutes an opening portion 18a for discharging the coating material M.

  The proximal end portion 16 has a flat circular cylindrical shape whose outer cross-sectional shape is larger than that of the pen tip 13. On the outer peripheral surface of the base end portion 16, a tapered surface 19 is formed so as to be tapered so as to be engaged with the tapered portion 10 b of the outer filling cylinder 10 in a region extending from the front end to the center.

  As shown in FIGS. 1 and 10, the pen tip member 12 is engaged with the inner filling cylinder 11 in the rotational direction by the base end portion 16 being extrapolated to the front end portion 11 d of the inner filling cylinder 11. It is in close contact. In this state, the pen tip member 12 is attached to the outer filling tube 10 in the rotational direction by inserting the pen tip 13 into the opening 10 g of the outer filling tube 10. That is, first, the nib member 12 is assembled to the inner filling cylinder 11, and this is assembled to the outer filling cylinder 10, so that the outer filling cylinder 10, the inner filling cylinder 11 and the nib member 12 are attached to each other as the filling member 1.

  At this time, the step portion 14 of the pen tip member 12 is engaged with the front end portion of the tapered portion 10 b of the outer filling tube 10 in the axial direction, and the rear end surface of the base end portion 16 is the inner filling tube 11. The step portion 11c is engaged in the axial direction, and is thereby held and held in the axial direction by the outer filling tube 10 and the inner filling tube 11.

  The filling member 1 filled with the coating material M is inserted into the main body cylinder 2 from the rear side, and the annular recess 10c of the outer filling cylinder 10 is engaged with the annular protrusion 2b of the main body cylinder 2. At the same time, the knurling 10e of the outer filling cylinder 10 is engaged with the knurling 2a of the main body cylinder 2 so as to be engaged with the main body cylinder 2 in the axial direction and the rotation direction, and integrated with the main body cylinder 2. Is done. At the same time, the filling member 1 is inserted and attached to the rear end portion of the inner filling cylinder 11 so that the piston 7 is tightly adhered. At this time, as described above, since the air discharge hole 11e is provided in the rear end portion of the inner filling cylinder 11, even when air exists between the coating material M and the piston 7 in the filling region 1x. The air can be appropriately released through the air discharge hole 11e, and an increase in the internal pressure of the filling region 1x can be suppressed.

  Moreover, this filling member 1 is attached to the outer filling cylinder 10 so that the cap C1 is detachable from the front end side. Further, the filling member 1 is detachably attached by fitting a plug C2 (see FIG. 3) into the opening 18a of the pen tip member 12, and thereby the filling region 1x is sealed (airtight). Further, the screw cylinder 4 is inserted into the outer filling cylinder 10 so that the flange portion 4y (see FIG. 6) of the screw cylinder 4 is close to the inner surface of the outer filling cylinder 10 of the filling member 1, whereby the female screw The expansion of the inner diameter of 4e is prevented.

  As a filling method for filling the filling region 1x with the coating material M in such a filling member 1, first, the leading end side of the inner filling tube 11 is closed with a filling plug, and the leading end side is directed downward. In this state, the filling region 1x An appropriate amount of the coating material M is injected into the substrate from the rear side. Thereafter, the filling plug is removed, the pen tip member 12 is attached to the inner filling cylinder 11 and the outer filling cylinder 10 is assembled, whereby the filling of the coating material M is completed. Further, depending on the viscosity and filling conditions of the coating material M, the inside air can be appropriately discharged from the front end of the inner filling cylinder 11 during filling without using the filling plug, and the air can be satisfactorily filled without bubbles.

  Alternatively, as another filling method, the pen tip member 12 is attached to the inner filling tube 11 and incorporated in the outer filling tube 10, and the cap C 1 is attached to the outer filling member 1 after closing the tip side of the pen tip member 12 with the plug C 2. Install. Subsequently, the tip side of the pen tip member 12 is directed downward, and in this state, an appropriate amount of the coating material M is injected into the filling region 1x from the rear. Immediately after the injection, the main body cylinder 2 after assembling to the filling member 1 is mounted so that the piston 7 is closely inserted from the rear side of the inner filling cylinder 11 so that the coating material M is filled. Is completed. In this case, since the filling region 1x can be sealed immediately after injection, volatilization of the highly volatile coating material M can be minimized. Further, since the cap C1 and the plug C2 are removed and used after reaching the consumer's hand, the sealed state can be further maintained.

  In the coating material extruding container 100 in the initial state shown in FIG. 1 configured as described above, the cap C1 and the plug C2 are removed by the user, and the main body cylinder 2 and the operation cylinder 3 are in the one-way direction. When the ratchet teeth 8a of the ratchet mechanism 8 are engaged with the side surfaces 8b1 of the ratchet teeth 8b in the rotation direction, the relative rotation between the ratchet member 5 and the operation cylinder 3 is restricted, and these are rotated synchronously. To do. Accordingly, the ratchet member 5 is rotated together with the operation cylinder 3 with respect to the screw cylinder 4 that is mounted so as to be integrated with the main body cylinder 2.

  As a result, the vertical rib 4g of the screw cylinder 4 is rotationally moved to one side in the circumferential direction with respect to the ratchet member 5, and the circumferential positional relationship of the vertical rib 4g with respect to the vertical rib 5e changes within the constant rotation amount A1. At the same time, due to the cooperation of the threaded portion 9 composed of the female thread 4e of the threaded cylinder 4 and the male thread 6b of the moving body 6, and the locking section composed of the protruding line 3d of the operating cylinder 3 and the protruding line 6c of the moving body 6. The moving body 6 and the piston 7 move forward.

  Thereafter, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction and are relatively rotated by a certain rotation amount A1, the movable body 6 and the piston 7 are moved forward by a certain amount. At the same time, the vertical rib 5e is rotationally moved by a fixed rotation amount A1 with respect to the vertical rib 4g and engaged (locked) in the rotation direction, and the screw cylinder 4 and the ratchet member 5 are relatively rotated. It is restricted and no further relative rotation is possible. That is, the vertical rib 5e is engaged with the vertical rib 4g in the rotational direction and engaged with the screw cylinder 4 and thus the main body cylinder 2 in the rotational direction, and the ratchet member 5 is rotated by a certain amount of rotation with respect to the screw cylinder 4 and thus the main body cylinder 2. Only A1 is relatively rotated.

  The main body cylinder 2 and the operation cylinder 3 are further rotated relative to each other in one direction with a force larger than that before the engagement of the vertical ribs 4g and 5e, and the rotation between the ratchet member 5 and the operation cylinder 3 exceeds a predetermined rotational force. When a force is applied, the ratchet teeth 8a slide so as to run up on the side surface 8b1 of the ratchet teeth 8b and get over the ratchet teeth 8b, thereby allowing relative rotation between the ratchet member 5 and the operation cylinder 3 (so-called "idle rotation"). Is done. As a result, the operation cylinder 3 rotates relative to the screw cylinder 4 and the ratchet member 5 in one direction, and the forward movement of the moving body 6 and the piston 7 is continued by the screwing action of the screwing portion 9. The coating material M filled with 1x is discharged from the opening 18 a of the pen tip member 12.

  Further, when the main body cylinder 2 and the operation cylinder 3 are further relatively rotated in one direction as described above, the spring portion 5b of the ratchet member 5 is compressed in the axial direction, and the ratchet teeth are generated by the elastic force of the spring portion 5b by the compression. Since 8b is urged to the rear side in the axial direction, the ratchet teeth 8a and 8b are repeatedly engaged and disengaged (engaged and disengaged), and the user clicks on each engagement and disengagement. A feeling is given.

  As described above, since the O-ring R1 is provided between the ratchet member 5 and the operation cylinder 3 in the axial direction, the ratchet teeth 8a and 8b are engaged and disengaged. O-ring R1 works as a cushioning material. That is, after the ratchet teeth 8a and 8b are disengaged, first, the flange portion 5c of the ratchet member 5 and the front end surface of the operation cylinder 3 abut against the O-ring R1, and then the ratchet teeth 8a and 8b are re-engaged. Engage. For this reason, the collision force (butting) between the ratchet teeth 8a and 8b, which is also the source of the click feeling, can be made gentle, and the sound quality becomes heavy while reducing the volume of the click feeling that occurs (low sound ).

  On the other hand, for example, in the coating material extruding container 100 immediately after the moving body 6 moves forward, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction which is the retraction direction, the ratchet teeth 8a become the side surfaces of the ratchet teeth 8b. By engaging 8b2 in the rotation direction, the relative rotation between the ratchet member 5 and the operation cylinder 3 is restricted, and these rotate synchronously. Thereby, the ratchet member 5 is rotated relative to the screw cylinder 4 together with the operation cylinder 3. As a result, the screwing action of the screwing portion 9 works and the moving body 6 and the piston 7 are retracted. At the same time, the vertical rib 4g of the screw cylinder 4 rotates and moves to the other side in the circumferential direction with respect to the ratchet member 5, and the circumferential positional relationship with respect to the vertical rib 5e changes within the constant rotation amount A1.

  Subsequently, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction and are relatively rotated by a certain rotation amount A1, the movable body 6 and the piston 7 are moved backward by a certain amount. At the same time, the vertical rib 5e is rotationally moved by a fixed rotation amount A1 with respect to the vertical rib 4g and engaged (locked) in the rotation direction, and the screw cylinder 4 and the ratchet member 5 are relatively rotated. It is restricted and no further relative rotation is possible. That is, the vertical rib 5e is engaged with the vertical rib 4g in the rotational direction and engaged with the screw cylinder 4 and thus the main body cylinder 2 in the rotational direction, and the ratchet member 5 is rotated by a certain amount of rotation with respect to the screw cylinder 4 and thus the main body cylinder 2. Only A1 is relatively rotated.

  At this time, even if the main body cylinder 2 and the operation cylinder 3 continue to rotate further in the other direction, the ratchet teeth 8a are firmly engaged (locked) by the side surface 8b2 of the ratchet teeth 8b, and the ratchet member 5 and the operation cylinder The relative rotation between the main body cylinder 2 and the operation cylinder 3 is also restricted so that they cannot be rotated relative to each other. Therefore, the moving body 6 and the piston 7 stop without being able to move back further, and as a result, move back by a certain amount.

  As described above, the coating material M is discharged from the opening 18a of the pen tip member 12 by one-way relative rotation between the main body cylinder 2 and the operation cylinder 3, and when the coating material M is finally used up, The piston 7 is engaged with the tapered portion 11b of the filling cylinder 11 in the axial direction, and the screwing action of the screwing portion 9 also reaches the end point, and the forward movement of the piston 7 is stopped (the moving body 6 and the piston 7 reach the forward limit). Reach, see FIG. 2).

  As described above, in the present embodiment, it is possible to reliably realize the forward movement of the moving body 6 and the backward movement of a certain amount with a simple structure. Accordingly, for example, a configuration in which a plurality of screwing portions are used, the moving action of the one screwing portion is stopped, and the moving body 6 is retracted by a certain amount can be made unnecessary. It is possible to reduce the necessity of using a screw thread having a three-dimensional space curve (spiral shape) that is difficult to manufacture in the structure. In this regard, particularly in the present embodiment, it can be said that when the moving body 6 is moved backward by a delicate return amount, the backward movement can be accurately and easily controlled.

  In addition, in the present embodiment, for example, a configuration in which the movable body 6 is retracted by a certain amount using the elastic force of an elastic body such as a spring can be eliminated. In the case of the coating material M having a high viscosity or hardness, there is a possibility that the moving body 6 cannot be moved back by the elastic force of the elastic body even if the moving body 6 is moved back using the elastic body. The above-described effect of reliably realizing only a certain amount of retreat can be said to be particularly remarkable.

  In the present embodiment, for example, the internal pressure of the filling region 1x is reduced by retracting the movable body 6 after use by a certain amount, so that the coating material M is caused by its compressibility and temperature change during storage. Thus, it is possible to prevent the coating material M from expanding and dripping from the opening 18a.

  Further, in this embodiment, for example, during use, the mobile body 6 is moved forward to discharge the coating material M by a necessary amount, and then the mobile body 6 is moved backward by a certain amount, thereby reducing the internal pressure of the filling region 1x. Thus, it is possible to prevent the coating material M from expanding due to its compressibility and temperature change during use and discharging the coating material M from the opening 18a more than expected. Specifically, for example, when the coating material M is ejected in a pressurized state, the coating material M may be ejected gradually over time from the time of feeding. At this time, the movable body 6 is moved backward by a certain amount. And the said coating material M can be stopped tightly. As a result, the user can appropriately draw a cosmetic line or the like by pressing the application surface S of the pen tip 13 against an application target such as an eye wrinkle.

  Further, in the present embodiment, as described above, since the moving body 6 is configured not to move backward by a certain amount or more, the moving body 6 is returned too much and air enters the filling region 1x from the opening 18. Can be prevented.

Further, the above-described decompression effect can be obtained even when the fixed amount of retraction in the moving body 6 is as small as 0.25 mm, 0.2 mm, or less. Further, if the moving body 6 is configured not to move backward by a certain amount, the higher the viscosity or hardness of the coating material M, the more the coating material M is always stored in a compressed state. It can be said that the certain amount of regression of 6 has high effectiveness (necessity). Incidentally, the “certain amount by which the moving body 6 moves backward” in the present embodiment can be calculated by the following equation (1), for example.
A certain amount [mm] for moving the moving body = 1 pitch length [mm] of the threaded portion x (the ratchet member
Constant rotation [°] / 360 [°])-clearance between each member [mm] (1)

  In the present embodiment, as described above, the filling region 1x is surrounded by the double structure of the outer filling tube 10 and the inner filling tube 11, and particularly at the rear end portion of the filling region 1x, The outer filling cylinder 10, the inner filling cylinder 11, and the main body cylinder 2 are surrounded by a triple structure. Therefore, the permeation | transmission to the exterior of the coating material M can be suppressed. Furthermore, since the rear end portion of the filling region 1x has a triple structure as described above, it is possible to suitably suppress the body temperature from being transmitted to the coating material M by the user's grip. At the same time, the coating material M is hardly affected by changes in the temperature outside the container.

  Further, in the present embodiment, as described above, the rear end side between the inner peripheral surface of the outer filling cylinder 10 and the outer peripheral surface of the inner filling cylinder 11 is sealed with the O-ring R2 to be suitably airtight. It is possible to further suppress the transmission of the coating material M to the outside. In addition, since the stopper C2 (see FIG. 3) is attached to the opening 18a of the nib member 12, the front end side of the filling region 1x can be sealed and suitably hermetically sealed.

  Incidentally, the outer filling cylinder 10 and the inner filling cylinder 11 can be simultaneously molded by a two-color different material molding machine. Similarly, the inner filling cylinder 11 and the nib member 12 can be simultaneously molded by a two-color different material molding machine. As a result, the manufacture of the coating material extruding container 100 can be simplified. In the present embodiment, all or part of the outer filling cylinder 10 may be transparent. In this case, for example, when the cap C1 is removed during use, the remaining amount of the coating material M can be easily confirmed. .

  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 gist described in each claim or applied to other embodiments. It may be a thing.

  12 (a) and 12 (b) are diagrams showing modifications of the ratchet member in the coating material extruding container of FIG. 1, and FIG. 13 is a cross-sectional view for explaining a modification of the ratchet member of the coating material extruding container of FIG. FIG. For example, as shown in FIG. 12, the ratchet member 5 is further provided with a vertical rib 5e ′ similar to the vertical rib 5e at a position facing the vertical rib 5e on the outer peripheral surface (a position 180 ° apart in the circumferential direction). It may be done. That is, a pair of vertical ribs 5e and 5e 'facing each other may be provided on the outer side of the ratchet member 5 on the front side of the flange portion 5c so as to be continuous with the flange portion 5c.

  In the ratchet member 5 according to this modification, as shown in FIG. 13, the screw cylinder 4 and the ratchet member 5 can be relatively rotated only by a constant rotation amount A2 by the longitudinal ribs 4g, 5e, 5e ′. The screw cylinder 4 is assembled in a state where relative rotation is restricted. In other words, the ratchet member 5 is attached to the screw cylinder 4 so as to be relatively rotatable by a constant rotation amount A2, and the spacing between the longitudinal ribs 4g and 5e in the circumferential direction and the spacing between the longitudinal ribs 4g and 5e ′ in the circumferential direction. However, the maximum amount of rotation A2 is constant. The constant rotation amount A2 is set based on, for example, the viscosity or hardness of the coating material M, the temperature change of the coating material M, the pitch of the screwing portion 9, the inner diameter of the filling region 1x, etc. It is set to 150 degrees.

  14, 15 (a) and 15 (b) are diagrams showing other modified examples of the ratchet member in the coating material extrusion container of FIG. 1, and FIG. 16 is another modification of the ratchet member of the coating material extrusion container of FIG. 1. It is sectional drawing for demonstrating an example. For example, as shown in FIGS. 14 and 15, the ratchet member 5 may be provided with vertical ribs 5 e ″ instead of the vertical ribs 5 e (see FIG. 7). That is, the longitudinal rib 5 e ″ may be provided on the front side of the flange portion 5 c on the outer peripheral surface of the ratchet member 5 so as to be continuous with the flange portion 5 c. One vertical rib 5e '' is provided so as to extend from the rear position of the spring portion 5b to the flange portion 5c with a width extending in a circular arc shape in the circumferential direction by a predetermined length (predetermined angle).

  In the ratchet member 5 according to the other modification, as shown in FIG. 16, the screw cylinder 4 and the ratchet member 5 can be relatively rotated only by a constant rotation amount A3 by the longitudinal ribs 4g and 5e ''. Are attached to the screw cylinder 4 in a state where the relative rotation of the screw cylinder 4 is restricted. In other words, the ratchet member 5 is attached to the screw cylinder 4 so as to be relatively rotatable only by a constant rotation amount A3, and the interval between the longitudinal ribs 4g and 5e '' in the circumferential direction is a maximum constant rotation amount A3. Yes. The constant rotation amount A3 is set based on, for example, the viscosity or hardness of the coating material M, the temperature change of the coating material M, the pitch of the screwing portion 9, the inner diameter of the filling region 1x, etc. 230 degrees.

  Moreover, in the said embodiment, although the ratchet mechanism 8 is employ | adopted as a rotation control mechanism, it replaces with this, for example, the thing using the screwing action of a screw part, the thing using a frictional force, and elastic force are used. You may employ | adopt various mechanisms, such as what was utilized. This rotation control mechanism regulates relative rotation between the container front and the cylinder member, and is a case where the container front and the container rear are relatively rotated in one direction. It is only necessary to allow relative rotation between the container front portion and the cylindrical member after being restricted by the engaging portion.

  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. Moreover, in the said embodiment, although the spring part 5b is provided integrally with the ratchet member 5, this spring part 5b may be provided separately from the ratchet member 5. FIG.

  FIG. 17 is a cross-sectional view for explaining a modified example of the ratchet member and screw cylinder of the coating material extruding container of FIG. As shown in FIG. 17, in the screw cylinder 4 according to this modification, the vertical cylinder 4 is positioned at a position facing the vertical rib 4g (position 180 ° away in the circumferential direction) on the inner peripheral surface of the rear end 4x. Vertical ribs 4g ′ similar to the ribs 4g may be further provided. In other words, on the inner peripheral surface of the rear end portion 4x of the screw cylinder 4, a pair of vertical ribs 4g and 4g 'facing each other extend from the front end to the rear end of the rear end portion 4x along the axial direction. Also good. Further, the ratchet member 5 may further include the vertical rib 5e 'at a position facing the vertical rib 5e on the outer peripheral surface thereof, as in the modification shown in FIGS.

  In this case, the ratchet member 5 is attached to the screw cylinder 4 so as to be relatively rotatable only by a fixed rotation amount A4, and the interval between the longitudinal ribs 4g and 5e in the circumferential direction and the interval between the longitudinal ribs 4g ′ and 5e in the circumferential direction are set. The maximum rotation amount is A4. The constant rotation amount A4 is set based on, for example, the viscosity or hardness of the coating material M, the temperature change of the coating material M, the pitch of the screwing portion 9, the inner diameter of the filling region 1x, etc. It is set to 150 degrees.

  In the above-described embodiment, the ratchet member 5 is relatively rotatable with respect to the screw cylinder 4 by a fixed rotation amount, and the relative rotation between the ratchet member 5 and the operation cylinder 3 is controlled by the ratchet mechanism 8. 5 may be relatively rotatable with respect to the operation cylinder 3 by a fixed rotation amount, and the relative rotation between the screw cylinder 4 and the ratchet member 5 may be controlled by the ratchet mechanism 8. In this case, the vertical rib 5e of the ratchet member 5 is engaged with the operation cylinder 3 in the rotation direction when the main body cylinder 2 and the operation cylinder 3 are relatively rotated, and the ratchet teeth 8a and 8b are engaged with the screw cylinder 4 and the ratchet member 5. The O-ring R1 is provided between the screw cylinder 4 and the ratchet member 5 in the axial direction.

  Moreover, in the said embodiment, although the rib 5e is provided in the ratchet member 5 as an engaging part, it is not limited to this, For example, a convex part, a protruding item | line, a recessed part, and a groove | channel may be sufficient. In short, when the container front part and the container rear part are rotated relative to each other, the engaging part engages with the container front part in the rotation direction so that the container front part and the cylindrical member can be relatively rotated only by a fixed rotation amount. As long as these relative rotations are restricted, or the relative rotation of the cylindrical member and the container rear part is restricted so that the cylinder member and the container rear part can be rotated relative to each other only by a fixed rotation amount. Good. In the above, the ratchet member 5 and the ratchet mechanism 8 constitute a rotation permission means.

  DESCRIPTION OF SYMBOLS 1 ... Filling member (container front part, container), 1x ... Filling area, 2 ... Main body cylinder (container front part, container), 3 ... Operation cylinder (container rear part, container), 5 ... Ratchet member (cylinder member, rotation tolerance) Means), 5b ... spring part, 5e ... vertical rib (engagement part, rib), 6 ... moving body, 8 ... ratchet mechanism (rotation control mechanism, rotation permitting means), 8a ... ratchet teeth, 8b ... ratchet teeth, 18a ... Opening part, 100 ... Coating material extrusion container, M ... Coating material, R1 ... O-ring (soft part).

Claims (6)

A container having a container front part and a container rear part rotatable relative to the container front part,
When the container front part and the container rear part are relatively rotated in one direction, the moving body disposed in the container moves forward to push out the coating material filled in the filling region in the container and Discharge from the opening at the tip,
When the container front part and the container rear part are relatively rotated in the other direction, which is the opposite direction of one direction, the moving body that has advanced is a coating material extruding container that retreats by a certain amount,
The relative rotation in the one direction between the container front and the container rear is allowed, and the relative rotation in the other direction between the container front and the container rear is allowed only by a certain rotation amount corresponding to the certain amount. Equipped with rotation allowance means,
The rotation permission means is
A cylindrical member that is rotatable relative to the front of the container only by the fixed rotation amount;
A rotation control mechanism for controlling relative rotation between the cylindrical member and the container rear part,
The cylindrical member is
When the container front part and the cylinder member are rotated relative to each other, the container front part is engaged with the container front part in the rotation direction so that the container front part and the cylinder member can be relatively rotated only by the constant rotation amount. Including an engaging portion for restricting these relative rotations,
The rotation control mechanism is
The relative rotation between the cylindrical member and the container rear portion is restricted, and the container front portion and the container rear portion are relatively rotated in the one direction, and the container front portion and the cylindrical member are relatively rotated. After the restriction by the engaging portion, the coating material extruding container is allowed to allow relative rotation between the tubular member and the container rear portion. The rotation control mechanism is a ratchet mechanism configured to include one ratchet tooth provided on the cylindrical member and the other ratchet tooth provided on the rear portion of the container,
The one and other ratchet teeth are
Engaging in the rotation direction to regulate relative rotation between the cylindrical member and the container rear part,
When the container front part and the container rear part are relatively rotated in the one direction and the relative rotation between the container front part and the cylinder member is restricted by the engagement part, When the container rear part is relatively rotated with a rotational force equal to or greater than a predetermined rotational force, the container member and the container rear part are allowed to rotate relative to each other by repeatedly engaging and disengaging in the rotational direction. The coating material extruding container according to claim 1. A container having a container front part and a container rear part rotatable relative to the container front part,
When the container front part and the container rear part are relatively rotated in one direction, the moving body disposed in the container moves forward to push out the coating material filled in the filling region in the container and Discharge from the opening at the tip,
When the container front part and the container rear part are relatively rotated in the other direction, which is the opposite direction of one direction, the moving body that has advanced is a coating material extruding container that retreats by a certain amount,
The relative rotation in the one direction between the container front and the container rear is allowed, and the relative rotation in the other direction between the container front and the container rear is allowed only by a certain rotation amount corresponding to the certain amount. Equipped with rotation allowance means,
The rotation permission means is
A cylindrical member that can rotate relative to the rear of the container only by the fixed rotation amount;
A rotation control mechanism for controlling relative rotation between the container front portion and the cylindrical member,
The cylindrical member is
When the cylinder member and the container rear part are relatively rotated, the cylinder member and the container rear part are engaged with each other in the rotation direction so that the cylinder member and the container rear part can be relatively rotated by the fixed rotation amount. Including an engaging portion for restricting rotation;
The rotation control mechanism is
While restricting relative rotation between the container front part and the cylinder member, the container front part and the container rear part are relatively rotated in the one direction, and the cylinder member and the container rear part are relatively rotated. After the restriction by the engaging portion, the coating material extruding container is allowed to allow relative rotation between the container front portion and the cylindrical member. The rotation control mechanism is a ratchet mechanism configured to include one ratchet tooth provided on the cylindrical member and the other ratchet tooth provided on the front portion of the container,
The one and other ratchet teeth are
Engaging in the rotation direction to restrict relative rotation between the container front and the tube member,
When the container front and the container rear are relatively rotated in the one direction, and the relative rotation between the tubular member and the container rear is restricted by the engagement portion, the container front When the tubular member is relatively rotated with a rotational force equal to or greater than a predetermined rotational force, the relative rotation between the container front portion and the tubular member is permitted by repeatedly engaging and disengaging in the rotational direction. The coating material extruding container according to claim 3.   The coating material extruding container according to claim 2, wherein the rotation control mechanism includes a soft portion that functions as a buffer material in engagement and disengagement of the one and other ratchet teeth.   The said rotation control mechanism is provided with the said cylindrical member integrally or separately, and includes the spring part which provides the one side and the other ratchet tooth | gear with the urging | biasing force of an axial direction, It is characterized by the above-mentioned. Coating material extrusion container.

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