JP2013102963A - Container for extruding applied material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container for extruding an applied material which readily and reliably inhibits the leakage of the applied material from an opening.SOLUTION: In the container, when a body cylinder and an operation cylinder are relatively rotated in one direction, a moving body and a piston are moved forward by the action of threaded engagement of a threaded engagement portion, and the applied material in a filling area is extruded and dispensed from an opening portion. The container includes a cam mechanism 20 for moving the moving body and the piston forward by a certain amount and then moving them backward by a certain amount every time of relative rotation of the body cylinder and operation cylinder in the one direction by a certain amount. When the body cylinder and the operation cylinder are relatively rotated in the one direction by the fixed amount, the applied material is extruded and dispensed by the cam mechanism 20, and the filling area is depressurized. Accordingly, the depressurization of the filling area is automatically achieved without requiring additional operation by a user.

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 part disposed in the container advances, 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.

JP 2007-130438 A

  Here, in the coating material extruding container as described above, the internal pressure of the filling region increases, and there is a possibility that the coating material is unintentionally discharged (leaked) from the opening. In this case, in order to suppress the leakage, for example, the user relatively rotates the container front part and the container rear part in the other direction, which is the opposite direction of one direction, and moves the moving part backward to reduce the internal pressure in the filling region. Can be considered. However, since the user's operation is required separately, there is room for improvement in terms of certainty and convenience.

  Then, this invention makes it a subject to provide the coating material extrusion container which can suppress easily and reliably that a coating material leaks from an opening part.

  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 part disposed in the container moves forward or backward by the extrusion mechanism, and pushes out the coating material filled in the filling region in the container and discharges it from the opening at the tip of the container The extrusion container is characterized in that it is provided with a cam mechanism that moves the moving part forward and backward by a certain amount each time the container front part and the container rear part are relatively rotated by a certain rotation amount in one direction.

  In this coating material extrusion container, when the container front part and the container rear part are relatively rotated in one direction, the moving part is advanced by the pushing mechanism, and the coating material in the filling region is pushed out and discharged from the opening. At this time, when the rotation amount is relatively rotated in one direction, the moving portion is moved back and forth by the cam mechanism, so that the filling region is decompressed after the coating material is pushed out and discharged. Become. That is, the decompression of the filling region can be automatically realized without requiring a user's operation separately. Therefore, it is possible to easily and reliably suppress leakage of the coating material from the opening.

  Moreover, it is preferable that a cam mechanism makes a moving part advance / retreat a fixed amount with the rotational force of relative rotation of a container front part and a container rear part. In this way, the cam mechanism can move the moving portion forward and backward by a predetermined amount by the rotational force of the relative rotation, regardless of the biasing force of an elastic body such as a spring.

  Moreover, it is preferable that a moving part is comprised including the piston which defines a filling area | region, and a cam mechanism advances and retracts a piston by a fixed amount. In this case, the filling region can be suitably depressurized.

  In addition, as a configuration that preferably exhibits the above-described effects, specifically, the cam mechanism includes a guide portion that is rotatably provided at either the container front portion or the container rear portion, and a container front portion or a container rear portion. One of the other is provided so as to be able to rotate synchronously and is guided by the guide part, and the guide part includes a guide surface that is inclined with respect to a transverse plane orthogonal to the axial direction, and the protrusion is a guide The structure which slides relatively with respect to a surface is mentioned.

  At this time, the cam mechanism may be a cylindrical cam mechanism, the guide portion may be provided on the outer peripheral surface of the first cylindrical member, and the protrusion may be provided on the inner peripheral surface of the second cylindrical member. In this case, the cam mechanism can be constituted by a cylindrical cam mechanism.

  Moreover, it is preferable that the front side or the rear side of the guide portion is defined by a plurality of protrusions arranged in the circumferential direction, and a gap is formed between the plurality of protrusions so that the protrusion can be inserted in the axial direction. In this case, the protrusion can be caused to enter the guide portion along the axial direction from the gap formed between the plurality of protrusions in the guide portion, and the protrusion can be easily assembled to the guide portion.

  Moreover, it is preferable to provide a click mechanism that generates a click feeling each time the container front part and the container rear part are rotated relative to each other by a fixed rotation amount. In this case, the relative rotation of the container front part and the container rear part, that is, a certain amount of advance and retreat of the moving part can be sensed by a click feeling.

  Moreover, it is preferable to provide the ratchet mechanism provided in a container and accept | permitting only the relative rotation of the container front part and container rear part in one direction. In this case, relative rotation between the container front part and the container rear part in the other direction can be restricted.

  Further, the moving part is configured to include a screwing part that constitutes an extrusion mechanism, and further includes a screw cylinder that is screwed with the screwing part, and the cam mechanism moves the moving part by moving the screw cylinder a certain amount. It is preferable to advance and retreat a certain amount. In this case, a screwing portion can be suitably applied as the pushing mechanism.

  According to the present invention, it is possible to easily and reliably suppress the leakage of the coating material from the opening.

It is a longitudinal cross-sectional view which shows the initial state of the coating material extrusion container which concerns on one Embodiment of this invention. FIG. 2 is a longitudinal sectional view in which the longitudinal sectional position of FIG. 1 showing a state of a forward 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. FIG. 2 is a perspective view showing a partially sectioned operation cylinder of the coating material extruding container of FIG. 1. FIG. 6 is another perspective view showing a partially sectioned operation cylinder of the coating material extruding container of FIG. 1. It is a perspective view which shows the screw cylinder of the coating material extrusion container of FIG. It is sectional drawing along the VII-VII line of FIG. It is a perspective view which shows the ratchet member of the coating material extrusion container of FIG. It is a top view which shows 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. It is sectional drawing for demonstrating filling of the coating material to the filling member in the coating material extrusion container of FIG. It is sectional drawing for demonstrating the assembly | attachment after the coating material filling in the coating material extrusion container of FIG. FIG. 2 is a partial development view for explaining a cam mechanism of the coating material extruding container of FIG. 1. It is the schematic for demonstrating operation | movement of the cam mechanism in the coating material extrusion container of FIG. It is an enlarged view for demonstrating operation | movement of the cam mechanism in the coating material extrusion container of FIG. FIG. 17 is an enlarged view showing a continuation of FIG. 16. FIG. 18 is an enlarged view showing a continuation of FIG. 17. It is an enlarged view which shows the continuation of FIG. It is a partial expanded view for demonstrating the cam mechanism which concerns on a modification. It is a partially expanded view for demonstrating the cam mechanism which concerns on another modification.

  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 in which the moving body is advanced in the coating material extruding container, and FIG. It is a disassembled perspective view which partially cuts and shows a container. 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 material, 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 (one adapter) of φ3 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 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 operation cylinder (second cylinder member) 3 that can be connected in the axial direction is provided as an external 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. Further, “axis” means a center line extending in the front and rear direction of the coating material extruding container 100, and “axis direction” means a direction along the axis (hereinafter the same).

  Further, the coating material extruding container 100 includes therein a moving body (moving portion) 6 that moves in the axial direction by relative rotation of the main body cylinder 2 (the filling member 1 is also acceptable) and the operation cylinder 3, and a moving body 6. A piston (moving part) 7 that is attached to the front end (tip) part and forms the rear end of the filling region 1x, and a screw cylinder (first cylinder) that enables the moving body 6 to move by the relative rotation. Member) 4 and a ratchet member 5 that can relatively rotate in only one direction with respect to the screw cylinder 4.

  In particular, the coating material extruding container 100 of the present embodiment moves with each ratchet mechanism 8 that allows relative rotation of the main body cylinder 2 and the operation cylinder 3 only in one direction, and every relative rotation of the main body cylinder 2 and the operation cylinder 3 by a certain amount of rotation. And a cam mechanism 20 for moving the body 6 and the piston 7 back and forth (forward and backward) within a fixed stroke (a fixed amount). The cam mechanism 20 here is a cylindrical cam mechanism including a projecting portion 20a and a guide portion 20b, and moves the moving body 6 and the piston 7 forward and backward by a constant stroke by the rotational force of relative rotation between the main body tube 2 and the operation tube 3. (Details will be described later).

  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 and 5 are perspective views showing a part of the operation cylinder in section. As shown in FIGS. 4 and 5, the operation cylinder 3 is an injection-molded product made of resin, and has a bottomed cylindrical shape that opens forward. The operation tube 3 includes a front end tube portion 3a having a small outer diameter on the front end side, and an outer peripheral surface of the front end tube portion 3a is engaged with the protrusion 2c of the main body tube 2 in the axial direction. An annular groove 3b 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 front end surface 3f of the ridge 3e is inclined with respect to a cross section (hereinafter simply referred to as “cross section”) which is a plane orthogonal to the axial direction. Specifically, the front end surface 3f is inclined backward as it goes to the one side in the circumferential direction when viewed in the radial direction. In other words, the front end surface 3f is inclined rearward in the relative rotation direction allowed by the ratchet mechanism 8 (hereinafter referred to as “allowable rotation direction”), and is substantially the same as a rear end surface 5f described later. Parallel.

  Further, an O-ring groove 3g extending in an annular shape is provided at the rear end of the outer peripheral surface of the front end cylinder portion 3a of the operation cylinder 3 for mounting the O-ring R1. The O-ring R1 is for giving an appropriate rotational resistance during the relative rotation between the main body cylinder 2 and the operation cylinder 3, and functions as an annular elastic body that generates a predetermined rotational resistance force in the relative rotation.

  Further, the operation cylinder 3 has a pair of (a plurality of) projecting portions 20 a constituting one of the cam mechanisms 20 at the front end portion on the inner peripheral surface thereof. The protrusion 20a is guided by the guide portion 20b while sliding relative to the guide portion 20b. Thereby, the protrusion 20a functions as an original node for transmitting the rotational force when the user relatively rotates the main body cylinder 2 and the operation cylinder 3 to the guide part 20b by sliding.

  These protrusions 20a are provided at two equally spaced positions in the circumferential direction, and protrude in the radial direction by a predetermined length. Specifically, a region extending from the center of the front end tube portion 3a to the front end on the inner peripheral surface of the operation tube 3 is enlarged to form a large-diameter inner peripheral surface 3i, and a pair of protrusions 20a having a constant height are formed with a large diameter. The front end of the inner peripheral surface 3i is formed to face each other. Further, a hole 3h penetrating in the radial direction is formed in a region continuous with the rear side of the protrusion 20a on the large-diameter inner peripheral surface 3i as a part for forming the protrusion 20a. The hole 3h has a rectangular shape having a circumferential width equal to the protrusion 20a when viewed from the radial direction.

  As shown in FIGS. 1 and 4, 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, thereby 2 is mounted so as to be relatively rotatable and connected in the axial direction. At this time, the O-ring R1 is fitted into the O-ring groove 3g of the operation cylinder 3, so that an appropriate rotational resistance is given to the relative rotation between the main body cylinder 2 and the operation cylinder 3.

  Such an operation cylinder 3 can be resin-molded using a mold and a core pin. Here, since the operation cylinder 3 has the hole 3h, it is possible to suitably form the protrusion 20a by using a convex portion for forming the hole 3h in the mold. . For example, when a slide core and a core pin of a mold are assembled to each other, a predetermined space corresponding to the protrusion 20a can be defined by being sandwiched in a direction perpendicular to the axial direction by the convex portion of the slide core and the core pin. As a result, when removing the core pin after molding (that is, after the protrusion 20a is formed by filling and solidifying the molten resin in the predetermined space), by sliding the protruding portion of the slide core in the direction perpendicular to the axis, The undercut part formed behind the protrusion 20a is opened, and the core pin can be easily pulled out in the axial direction.

  6 is a perspective view showing the screw cylinder, and FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. As shown in FIGS. 6 and 7, 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 center cylinder part 4y having an outer diameter larger than that of the front end cylinder part 4x, and a rear end cylinder part 4z having an outer diameter smaller than that of the center cylinder part 4y. From the rear to the rear in this order. On the other hand, the inner peripheral surface of the screw cylinder 4 extends straight along the axial direction without a step.

  The front end cylinder portion 4x constitutes a front end portion of the screw cylinder 4, and a female screw 4e constituting one of the screwing portions (extrusion mechanisms) 9 is provided on the inner peripheral surface thereof. A fine pitch is employed as the pitch of the screwing portions 9 here, for example, 0.5 mm. On the outer peripheral surface of the front end cylinder part 4x, a flange part 4a for preventing the inner diameter of the female screw 4e from expanding near the filling member 1 (see FIG. 1) is provided at the front end part.

  The central cylinder part 4y constitutes the central part of the screw cylinder 4 and the front end of the central part, and the outer peripheral surface has a plurality of positions in the circumferential direction for engaging with the knurls 2a of the main body cylinder 2 in the rotational direction. A protrusion 4c is formed. Further, on the outer peripheral surface of the rear end portion of the central cylinder portion 4y, an annular convex portion 4d for engaging with the protrusion 2d of the main body cylinder 2 in the axial direction is formed. In addition, a pair of slits 4f penetrating in the radial direction and extending a predetermined length in the axial direction are formed on the front end cylinder portion 4x and the front end portion of the central cylinder portion 4y so as to face each other.

  The rear end cylinder portion 4z constitutes the rear end portion of the screw cylinder 4 and the rear end portion of the central portion, and the rear end surface 4b constitutes a ratchet mechanism 8 and is engaged with the ratchet member 5 as a ratchet tooth 8a. Are provided along the circumferential direction. Here, the ratchet teeth 8a protrude from the rear end surface 4b at positions that are equally spaced in the circumferential direction.

  These ratchet teeth 8a form a sawtooth shape (wedge shape) along the circumferential direction and protrude from the rear end surface 4b. Specifically, the side surface 8a1 of the other side in the ratchet teeth 8a in the circumferential direction (the side that contacts 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 inclines with respect to the rear-end surface 4b so that it may become. On the other hand, the side surface 8a2 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 the other direction) is orthogonal to the rear end face 4b and is in the axial direction. Extending along.

  Further, the rear end cylinder part 4z has a guide part 20b constituting the other side of the cam mechanism 20 on the outer peripheral surface thereof. The guide portion 20b guides the sliding of the protruding portion 20a while relatively sliding the protruding portion 20a of the operation cylinder 3. The guide portion 20b functions as a follower to which the rotational force of the main body cylinder 2 and the operation cylinder 3 is transmitted as a straight forward force in the front-rear direction by sliding from the protrusion 20a. The front side of the guide portion 20b is defined by a raised portion 20c that is raised with respect to the outer peripheral surface of the rear end cylindrical portion 4z, and the rear side of the guide portion 20b is a protrusion that protrudes with respect to the outer peripheral surface of the rear end cylindrical portion 4z. It is defined by a plurality of guide pieces 20d.

  The raised portion 20c is provided at the front end portion of the rear end cylindrical portion 4z so as to protrude a predetermined length outward in the radial direction. The rear surface of the raised portion 20c has a sawtooth shape (wedge shape) along the circumferential direction. Further, the rear surface of the raised portion 20c is configured to slide with the protrusion 20a and includes a guide surface 20e that is inclined (intersects) with respect to the transverse section.

  The plurality of guide pieces 20d are provided at the rear end portion of the rear end cylindrical portion 4z so as to protrude a predetermined length outward in the radial direction. These guide pieces 20d are disposed behind the raised portion 20c by a distance corresponding to the predetermined stroke. The plurality of guide pieces 20d are juxtaposed along the circumferential direction with a gap D wider than the circumferential width of the protrusion 20a (see FIG. 14). Here, the guide pieces 20d are provided at eight positions in the circumferential direction.

  As shown in FIGS. 1 and 6, the screw cylinder 4 is inserted into the main body cylinder 2, and the annular convex portion 4 d engages with the protrusion 2 d of the main body cylinder 2 so as to be movable in the axial direction. The protrusion 4c engages with the knurl 2a of the main body cylinder 2 in the rotation direction. Further, the rear end cylinder portion 4 z of the screw cylinder 4 is inserted into the operation cylinder 3. As a result, the screw cylinder 4 is engaged with the main body cylinder 2 in the rotational direction and is mounted so as to be able to rotate synchronously with the main body cylinder 2, and the protrusion 2 d of the main body cylinder 2 and the front end surface of the operation cylinder 3 Can be moved in the axial direction. At this time, the protruding portion 20a of the operation cylinder 3 enters the guide portion 20b along the axial direction from the gap D between the plurality of guide pieces 20d in the guide portion 20b, whereby the protruding portion 20a enters the guide portion 20b. The cam mechanism 20 is formed by assembling.

  Such a screw cylinder 4 can be resin-molded using a mold slide core and a core pin. Here, a four-way slide core type mold that can be divided into four in the circumferential direction is used, so that the undercut shape of the guide piece 20d provided at eight positions in the circumferential direction can be formed without difficulty. .

  FIG. 8 is a perspective view showing the ratchet member, and FIG. 9 is a plan view showing the ratchet member. As shown in FIGS. 8 and 9, the ratchet member 5 is an injection-molded product made of resin, and is configured in a substantially cylindrical shape. On the front end surface of the ratchet member 5, a plurality of ratchet teeth 8 b that engage with the ratchet teeth 8 a of the screw cylinder 4 are provided along the circumferential direction as constituting the ratchet mechanism 8. Here, the ratchet teeth 8 b are protruded from the front 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 front end surface. Specifically, the side surface 8b1 on the one side in the circumferential direction of the ratchet teeth 8b (the side that contacts the side surface 8a1 of the ratchet teeth 8a when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction) Inclined with respect to the front end face to form a mountain shape. On the other hand, the side surface 8b2 on the other circumferential side of the ratchet teeth 8b (the side that contacts the side surface 8a2 of the ratchet teeth 8a when the main body tube 2 and the operation tube 3 are rotated in the other direction) is orthogonal to the front end surface and is the axis line. Extends along the direction.

  In the peripheral wall of the ratchet member 5, a substantially spiral slit 5 a is formed in a portion from the center portion to the rear end. Thereby, the ratchet member 5 has a function as the spring part 5b which urges | biases the ratchet tooth 8b toward the front which is the ratchet tooth 8a side. Further, a vertical rib 5e having a predetermined width in the circumferential direction and extending in the axial direction is provided at the front end portion of the outer peripheral surface of the ratchet member 5 so as to be engaged with the protrusion 3e of the operation cylinder 3 in the rotational direction. ing.

  The vertical ribs 5e are provided at equally spaced positions in the front end of the outer peripheral surface of the ratchet member 5. The rear end face 5f of the vertical rib 5e is inclined forward with respect to the transverse section as it goes to the other side in the circumferential direction when viewed in the radial direction. In other words, the rear end surface 5f is inclined forward as it goes in the allowable rotation direction of the ratchet member 5, and is substantially parallel to the front end surface 3f of the protrusion 3e of the operation tube 3.

  As shown in FIGS. 1 and 8, the ratchet member 5 is inserted into the operation cylinder 3 from the rear, and the vertical rib 5e enters between the protrusions 3e and 3e of the operation cylinder 3, and the vertical rib 5e The protrusion 3e is engaged in the rotation direction. At the same time, the ratchet member 5 is abutted against the rear end side of the screw cylinder 4, and the ratchet teeth 8 b can be engaged with the ratchet teeth 8 a of the screw cylinder 4. Accordingly, the ratchet member 5 is assembled to the operation cylinder 3 in a state in which the relative rotation is restricted by the ratchet teeth 8a and 8b so that the ratchet member 5 can be relatively rotated only in the allowable rotation direction.

  Further, the ratchet member 5 is sandwiched in the axial direction by the rear end side of the screw cylinder 4 and the bottom surface of the operation cylinder 3, and a biasing force (elastic force) is generated by the spring portion 5b so that the ratchet teeth 8b are moved forward. Thus, the ratchet teeth 8a and 8b engaged with each other are brought into a click engagement state.

  When the vertical rib 5e is inserted between the protrusions 3e and 3e so as to be engaged with the protrusion 3e in the rotation direction, the positions in the rotation direction are shifted from each other so that the rear end surface 5f of the vertical rib 5e and the protrusion 3e When the front end surface 3f is brought into contact with each other, the rear end surface 5f and the front end surface 3f are the above-described inclined surfaces, so that the relative rotation of the ratchet member 5 in the allowable rotation direction is promoted, while the allowable rotation direction The relative rotation of the ratchet member 5 to the opposite side is restricted. Therefore, in this case, the ratchet member 5 is relatively rotated in the allowable rotation direction, and the vertical rib 5e enters between the protrusions 3e and 3e while being moved in the allowable rotation direction with respect to the protrusion 3e. As a result, it is possible to prevent the ratchet member 5 from being forced to rotate relative to the opposite side of the allowable rotation direction in order to engage the vertical rib 5e with the protrusion 3e, and consequently, due to excessive relative rotation. It is possible to suppress the ratchet teeth 8a, 8b and other rotation engaging portions from being damaged.

  Returning to FIG. 1, the moving 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. Further, on the inner circumferential surface of the moving body 6, at the position of six equal intervals in the circumferential direction, a protrusion 6 c that protrudes inward in the radial direction and extends in the axial direction is configured as the other of the rotation stop portions of the moving body 6. Is provided. 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 with its protrusion 6c engaged between the protrusions 3d and 3d (see FIG. 4) of the shaft 3c, so that it can move in the axial direction to the operating cylinder 3 and engage in the rotational direction. Has been.

  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). The piston 7 has a recess recessed at its rear end surface, and an annular protrusion 7b is provided on the inner peripheral surface of the recess so as to be movable by a predetermined length in the axial direction relative to the moving body 6. Yes. 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 the filling member. 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.

  As shown in FIG. 10, the outer filling cylinder 10 is made of a coloring material (for example, black), and has a cylindrical main body portion 10a and a tapered portion 10b continuous to the front side of the main body portion 10a. doing. 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 10a is used for confirming the filling position of the coating material M at the time of filling and for engaging the inner filling cylinder 11, and a window 10f comprising a through hole penetrating the peripheral wall of the rear end portion in a rectangular shape. have. The tapered portion 10b has a tapered truncated cone shape, and the outer cross-sectional shape is a flat circular shape. An opening 10g (see FIG. 1) having a flat circular cross section is formed at the front end of the tapered portion 10b. Further, an annularly extending O-ring groove 10h (see FIG. 1) is provided on the front side of the flange portion 10d on the outer peripheral surface of the main body 10a, and this O-ring groove 10h is provided in a cap C1 described later. An O-ring R2 that functions as an annular elastic body that enhances airtightness and fitting stability is fitted and mounted.

  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 that continues to the front side of the main body portion 11a, and a front end portion 11d that continues to the front side of the tapered portion 11b via a step. ing.

  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.

  The taper portion 11b has a tapered truncated cone shape whose outer cross-sectional shape is a flat circular shape. The front end portion 11d has a cylindrical shape whose outer cross-sectional shape 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, a gap 11h is formed between the front end of the inner filling cylinder 11 and the outer filling cylinder 10, and the gap 11h constitutes an engagement groove for engaging a plug C2 described later.

  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.

  Moreover, as for the pen point member 12, the hardness by the type A durometer prescribed | regulated by JISK6253 is made into 40-80 as preferable. As the nib member 12, any application part such as a soft nib can be used. As shown in the drawing, the pen tip member 12 includes a pointed pen tip 13 on the tip 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 forms an opening 18 a 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, 10, and 11, the pen tip member 12 has a base end portion 16 that is extrapolated to a front end portion 11 d of the inner filling tube 11 and is engaged with the inner filling tube 11 in the rotational direction. It is in close contact. In this state, the pen tip member 12 is mounted so that the pen tip 13 is inserted into the opening 10 g of the outer filling tube 10 and engaged with the outer filling tube 10 in the rotational direction. That is, by assembling the nib member 12 to the inner filling cylinder 11 and assembling it to the outer filling cylinder 10, 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. The nib member 12 has a stepped portion 14 engaged with the front end of the outer filling tube 10 in the axial direction and a rear end surface of the base end portion 16 engaged with the inner filling tube 11 in the axial direction. Thus, the outer filling cylinder 10 and the inner filling cylinder 11 are sandwiched and held in the axial direction.

  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. Has been. 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.

  In addition, the stopper C2 is fitted and removably attached to the opening 18a of the nib member 12 of the filling member 1, whereby the filling region 1x is sealed (airtight). Further, the cap C1 is screwed (removably attached) to the outer filling cylinder 10 of the filling member 1 via the O-ring R2, thereby bringing the inside of the cap C1 into an airtight state. The screw cylinder 4 is inserted so that the flange portion 4a (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, so that the inner diameter of the female screw 4e is reduced. It is prevented from spreading.

  FIG. 12 is a cross-sectional view for explaining the filling of the coating material into the filling member, and FIG. 13 is a cross-sectional view for explaining the assembly of the coating material extrusion container after the filling of the coating material. As shown in FIG. 12, when the filling material 1 is filled with the coating material M in the above-described filling member 1, first, the plug C <b> 2 as the tip seal part is inserted from the opening 18 a to the tip of the inner filling cylinder 11. Then, the engagement protrusion of the plug C2 is engaged with the gap 11h. Thereby, the plug C2 and the filling member 1 are brought into a close contact state or a state having a clearance, and the opening 18a is closed.

  Subsequently, the cap C1 is screwed into the outer filling cylinder 10 to make the inside of the cap C1 airtight. Then, the pen tip member 12 is set in a standing position, the nozzle Nz is inserted from the rear of the inner filling cylinder 11, and the filling material 1x is filled with the coating material M which is melted by being raised to a temperature of about 80 ° C. While the nozzle Nz is retracted, the coating material M is filled up to a fixed amount. Subsequently, after being allowed to cool for a predetermined cooling time, as shown in FIG. 13, the main assembly 50 in which the members 2 to 7 are assembled is assembled and completed.

  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. Are rotated relative to each other, a screwing portion 9 including a female screw 4e of the screw cylinder 4 and a male screw 6b of the moving body 6, a rotation stopping portion including a protrusion 3d of the operating cylinder 3, and a protrusion 6c of the moving body 6. By this cooperation, the moving body 6 and the piston 7 move forward, and the coating material M filled in the filling region 1x of the filling member 1 is discharged from the opening 18a of the nib member 12 (see FIG. 2).

  Further, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction in this way, the ratchet teeth 8b are urged forward in the axial direction by the elastic force of the spring portion 5b of the ratchet member 5, so that the ratchet The engagement and disengagement (meshing and meshing release) of the ratchet teeth 8a and 8b in the mechanism 8 are repeated. That is, the side surface 8a1 (see FIG. 6) of the ratchet tooth 8a is engaged with the side surface 8b1 (see FIG. 8) of the ratchet tooth 8b in the rotational direction, and the ratchet tooth 8a slides up the side surface 8b1 of the ratchet tooth 8b. To do. Then, after the ratchet teeth 8a get over the ratchet teeth 8b and the engagement is released, the side surface 8a1 is again engaged with the side surface 8b1 in the rotational direction. As a result, a click feeling is given to the user each time the ratchet teeth 8a and 8b are engaged and released. Here, a click feeling is generated once when the main body cylinder 2 and the operation cylinder 3 are relatively rotated by 1/8 (45 °) in one direction.

  On the other hand, even if the main body cylinder 2 and the operation cylinder 3 try to rotate relative to each other in the retraction direction, the side surface 8a2 (see FIG. 6) of the ratchet tooth 8a contacts the side surface 8b2 (see FIG. 8) of the ratchet tooth 8b. The relative rotation of the screw cylinder 4 and the ratchet member 5 is restricted so that the screw cylinder 4 and the ratchet member 5 do not rotate relative to each other. As a result, the main body cylinder 2 and the operation cylinder 3 are not relatively rotated in the other direction.

  Here, the coating material extruding container 100 of the present embodiment includes the cam mechanism 20 as described above. The cam mechanism 20 will be described in detail below.

  FIG. 14 is a partial development view for explaining the cam mechanism, FIG. 15 is a schematic view for explaining the operation of the cam mechanism, and FIGS. 16 to 19 are enlarged views for explaining the operation of the cam mechanism. FIG. 14 is a development view of the cam mechanism 20 from 0 ° to 180 °, and shows the relative movement of the protrusion 20a and the guide 20b in the cam mechanism 20 as the movement of the protrusion 20a.

  As shown in FIG. 14, the cam mechanism 20 of the present embodiment has a constant stroke after the movable body 6 and the piston 7 are moved forward by a constant stroke by a relative rotation of the main body cylinder 2 and the operation cylinder 3 in one direction. Retreat. Here, every time the main body cylinder 2 and the operation cylinder 3 are rotated relative to each other by 1/8 (every time the click feeling is generated once), the movable body 6 and the piston 7 are moved forward and backward by 1.2 mm. As described above, the cam mechanism 20 includes the protruding portion 20a and the guide portion 20b including the raised portion 20c and the guide piece 20d, and the protruding portion 20a is relatively guided by the guide portion 20b. The protrusion 20a relatively moves along a relative trajectory along a sine curve as shown.

  The protrusion 20a has a polygonal shape when viewed in the radial direction. Here, the protrusion 20a has a hexagonal shape with the axial direction as the longitudinal direction and the opposite sides along the axial direction as viewed from the radial direction. The front side of the protrusion 20a has a front sliding surface 20a1 that is inclined relative to the cross section, as it slides relative to the guide 20b. That is, on the front side surface of the projection 20a, one side in the circumferential direction (the side that contacts the guide portion 20b when the main body tube 2 and the operation tube 3 are relatively rotated in one direction) For example, a front sliding surface 20a1 that is inclined at 45 ° is provided. In addition, the rear side of the protrusion 20a has a rear sliding surface 20a2 that is inclined relative to the cross-section as being slid relative to the guide portion 20b. That is, the rear side sliding surface 20a2 which inclines at a predetermined angle (for example, 45 °) with respect to the cross section is provided on one side in the circumferential direction of the rear side surface of the protrusion 20a.

  The rear surface of the raised portion 20c that defines the front side of the guide portion 20b has a sawtooth shape along the circumferential direction, and has a shape in which chevron-shaped irregularities are continuous in a radial direction. The guide surface 20e on the rear surface of the raised portion 20c is a surface that comes into contact with the protrusion 20a when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, and is a front sliding surface 20a1 of the protrusion 20a. Is inclined with respect to the transverse plane at an inclination angle equal to.

  The plurality of guide pieces 20d that define the rear side of the guide portion 20b have a rectangular shape when viewed in the radial direction. The guide piece 20d here has a parallelogram shape having opposite sides along the axial direction when viewed from the radial direction. The front surface of the guide piece 20d includes a guide surface 20f that is inclined with respect to the transverse section. The guide surface 20f is a surface that contacts and slides against the protrusion 20a when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, and has the same inclination angle as the rear sliding surface 20a2 of the protrusion 20a. It is inclined with respect to the cross section.

  The guide piece 20d is arranged side by side so that the circumferential position does not overlap the guide surface 20e of the raised portion 20c, in other words, the guide piece 20d does not overlap the guide surface 20e when viewed in the axial direction. Specifically, the circumferential position of the edge of the guide piece 20d on the one side in the circumferential direction of the guide surface 20f and the edge of the raised portion 20c on the other side in the circumferential direction of the guide surface 20e are the same. Is provided. Further, the edge on the other circumferential side of the guide surface 20f and the edge on the one circumferential side of the guide surface 20e are provided so that their circumferential positions are the same position.

  Further, the cam mechanism 20 is configured such that the moving body 6 and the piston 7 advance and retreat according to the generation timing of the click feeling, and has a predetermined positional relationship with the ratchet mechanism 8 as the click mechanism. Here, the lateral position of the side surface 8a2 of the ratchet tooth 8a of the ratchet mechanism 8 is set to the same position as the circumferential edge of the guide surface 20e (see FIG. 6). Thereby, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, a click feeling is generated when the movable body 6 and the piston 7 are positioned at the retreat limit of the cam mechanism 20 (details will be described later). ).

  The cam mechanism 20 configured as described above has the rotational force of the relative rotation along the axial direction as illustrated below, for example, every time the main body cylinder 2 and the operation cylinder 3 are relatively rotated by a certain amount of rotation. Converting to a straight force, the moving body 6 and the piston 7 are moved forward and backward by a fixed stroke.

  That is, as shown in FIGS. 15A and 16, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction in a state where the screw cylinder 4 is positioned at the forward limit of the cam mechanism 20, first, The protrusion 20a moves relative to one side in the circumferential direction, and as shown in FIGS. 15B and 17, the rear sliding surface 20a2 of the protrusion 20a comes into contact with the guide surface 20f of the guide piece 20d and slides. Move.

  Thereby, since the guide piece 20d (screw cylinder 4) is movable in the axial direction with respect to the main body cylinder 2 and is engaged in the rotation direction, the guide piece 20d is pushed backward by the protrusion 20a, and the guide piece 20d moves backward. Therefore, the screw cylinder 4 moves backward, the moving body 6 screwed into the screw cylinder 4 by the screwing portion 9 moves backward, and as a result, the piston 7 moves backward. As a result, the filling region 1x is expanded, and the internal pressure of the filling region 1x is automatically reduced.

  When the relative rotation continues in one direction, the protrusion 20a continues to relatively move toward one side in the circumferential direction, and the screw cylinder 4, the moving body 6 and the piston 7 continue to retreat, and FIG. 15 (c) and FIG. As shown in FIG. 4, when the protrusion 20a relatively moves to a position in contact with the edge on one side in the circumferential direction of the guide surface 20f, the sliding of the protrusion 20a with the guide surface 20f ends, and the screw cylinder 4, the moving body 6 and the piston 7 reach the retreat limit of the cam mechanism 20. At this time (when the retreat limit of the cam mechanism 20 is reached), the ratchet teeth 8a get over the ratchet teeth 8b, the ratchet teeth 8a, 8b are disengaged and engaged, and a click feeling is generated.

  Further, when the relative rotation continues in one direction, the protrusion 20a relatively moves to one side in the circumferential direction, and the front sliding surface 20a1 of the protrusion 20a is raised as shown in FIG. 15 (d) and FIG. It slides in contact with the guide surface 20e of the portion 20c. Thereby, the protruding portion 20c is pushed forward by the protruding portion 20a, and the protruding portion 20c advances. Therefore, the screw cylinder 4 moves forward, and the moving body 6 and the piston 7 move forward. As a result, the filling region 1x is contracted, and the coating material M in the filling region 1x is pushed out and discharged from the opening 18a.

  When the relative rotation is further continued in one direction, the protrusion 20a continues to further move relative to one side in the circumferential direction, and the screw cylinder 4, the moving body 6 and the piston 7 continue to move forward, and FIG. As shown, when the protrusion 20a relatively moves to a position in contact with the edge on one side in the circumferential direction of the guide surface 20e, the sliding of the protrusion 20a with the guide surface 20e ends, and the screw cylinder 4 and the moving body 6 And the piston 7 reaches the advance limit of the cam mechanism 20. As described above, the movable body 6 and the piston 7 are moved forward and backward by a constant stroke.

  As described above, according to the coating material extruding container 100 of this embodiment, the main body cylinder 2 and the operation cylinder 3 are relatively rotated by a certain amount of rotation in one direction, and the moving body 6 and the piston 7 are moved forward and backward by the cam mechanism 20 by a certain stroke. In addition to discharging the coating material M, the filling region 1x can be automatically depressurized. Since the inside of the filling region 1x can be automatically reduced in this way, leakage of the coating material M, that is, for example, dripping the coating material M from the opening 18a over time, for example, can be easily and reliably suppressed. can do. Moreover, it becomes possible to suppress the change of the coating material M due to pressure.

  In particular, in the present embodiment, as described above, the cam mechanism 20 can advance and retract the movable body 6 and the piston 7 only by the rotational force of the relative rotation, regardless of the biasing force of an elastic body such as a spring. Since the urging force of the elastic body may be insufficient with respect to the force required to move the moving body 6 and the piston 7 back and forth, according to the present embodiment, the leakage of the coating material M is further ensured. Can be suppressed. Moreover, since the piston 7 that defines the filling region 1x can be advanced and retracted by the cam mechanism 20, the filling region 1x can be directly and suitably reduced in pressure.

  In the present embodiment, as described above, the guide portion 20b is defined by the plurality of guide pieces 20d arranged in the circumferential direction, and the protrusion 20a can be inserted in the axial direction between the plurality of guide pieces 20d. A gap D is formed (see FIG. 14). Therefore, the projecting portion 20a can enter the guide portion 20b along the axial direction from the gap D, and the projecting portion 20a can be easily assembled to the guide portion 20b.

  In the present embodiment, as described above, the movable body 6 and the piston 7 advance / retreat by a fixed stroke each time the main body cylinder 2 and the operation cylinder 3 are relatively rotated to generate a click feeling once. Therefore, not only can the user sense the degree of relative rotation and the degree of ejection of the coating material M, but also the advance and retreat of the movable body 6 and the piston 7 can be sensed by the click feeling.

  In the present embodiment, as described above, the ratchet mechanism 8 restricts the relative rotation of the main body cylinder 2 and the operation cylinder 3 in the other direction and allows only the relative rotation of the main body cylinder 2 and the operation cylinder 3 in one direction. It becomes possible to do.

  In the present embodiment, as described above, the moving body 6 includes the screwing portion 9, and by moving the screw cylinder 4 screwed with the screwing portion 9 forward and backward, the moving body 6 and thus the piston 7 are advanced and retracted. ing. According to this configuration, the above-described effect of automatically reducing the pressure in the filling region 1x and suppressing the leakage of the coating material M can be suitably exhibited.

  Further, in the present embodiment, as described above, when the click feeling is generated, the screw cylinder 4 is positioned at the retreat limit of the cam mechanism 20, and the filling region 1x is decompressed to the maximum. Therefore, since the user normally stops relative rotation based on the click feeling (ends use), the applied material extruding container 100 after use is likely to be in a state where the inside of the filling region 1x is decompressed. Become. In this respect, the present embodiment that can reduce the pressure in the filling region 1x of the applied material extruding container 100 after use to the maximum is useful from the fact that the applied material M is particularly likely to leak from the opening 18a during storage after use. It can be said that.

  The coating material M as in the present embodiment is generally filled in a jar type glass container and used in a cosmetic brush. In this case, however, the wide-mouthed jar type container has a problem that, for example, the coating material M is volatilized quickly and the coating material M is likely to change, and the brush tip is hard to use. In this respect, this embodiment can seal the coating material M in a double and triple manner with a resin material having a small open portion and a high barrier property, so that the coating material M containing a large amount of volatile components is used. It will be advantageous.

  Further, in this embodiment, the inner filling cylinder 11 is made transparent, and a part of the outer filling cylinder 10 (the piston 7 can be visually recognized when the piston 7 is in the position shown in FIG. 2 which is the forward limit of the moving body 6). By forming the window at a desired position), it is possible to confirm the color tone and presence / absence of the filled coating material M by removing the cap C1 at the time of sale or use. For example, when the coating material M is pushed out to the end by forming the piston 7 in white and the piston 7 reaches the position of the window formed in the outer filling cylinder 10, the color visually recognized from this window is the coating material M. Since the color changes from white to white, it can be recognized that there is no remaining amount, which is a signal of the end of use.

  In the present embodiment, since the air discharge hole 11e is formed near the rear end of the inner filling cylinder 11, the filling member 1 filled with the coating material M is assembled to the main assembly 50. When the piston 7 is inserted in a certain amount, the air can be appropriately discharged from the air discharge hole 11e. Further, when the coating material M is filled in the filling member 1 and the filling member 1 is assembled to the main assembly 50 until the air discharge hole 11e is exceeded (so that the air discharge hole 11e is buried), the piston 7 becomes the inner filling cylinder. Since the excess coating material M is discharged from the air discharge hole 11e when inserted into the air 11, the air in the filling member 1 can be completely removed. When air is contained in the filling member 1, the air expands due to a temperature rise and the coating material M naturally leaks from the opening (discharge port) 18a, or the air is cushioned when the coating material M is pushed out. And a time lag occurs, which is not preferable.

  Incidentally, in this embodiment, since the protrusion 20a is hexagonal, the area of the protrusion 20a can be maximized when the above-described sliding in the cam mechanism 20 is realized. As a result, the strength and rigidity of the protrusion 20a are maximized.

  In addition, the cam mechanism 20 does not use a spring or the like, and is configured by the above-described protrusion 20a and guide portion 20b. Therefore, the assembly can be facilitated with a small total number of parts. Further, as described above, when the coating material M is filled, the opening 18a is closed so that the stopper C2 is in a close contact state or a clearance state, so that it is difficult for the coating material M to contain air.

  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.

  For example, in the above embodiment, the protrusion 20a of the cam mechanism 20 is provided so as to be able to rotate synchronously with the operation cylinder 3 (rear part of the container), and the guide part 20b is provided so as to be able to rotate synchronously with the main body cylinder 2 (front part of the container). On the contrary, the protrusion 20a may be provided so as to be able to rotate synchronously with the container front, and the guide 20b may be provided so as to be able to rotate synchronously with the container front. In the above-described embodiment, the rear side of the guide portion 20b is defined by the plurality of guide pieces 20d. Conversely, the front side of the guide portion 20b may be defined by the plurality of guide pieces 20d.

  In the above embodiment, the protrusion 20a of the cam mechanism 20 has a hexagonal shape when viewed in the radial direction, the raised portion 20c of the guide portion 20b has a sawtooth shape along the circumferential direction, and the guide piece 20d has parallel sides when viewed in the radial direction. Although it was made into a shape, it is not limited to this. For example, as shown in FIGS. 20 and 21, the protrusion 20a, the raised portion 20c, and the guide piece 20d may have a shape having at least one of a plane and a curved surface. Similarly, the guide surfaces 20e and 20f may have a shape having at least one of a plane and a curved surface.

  Specifically, in the example shown in FIG. 20, the protrusion 20 a has an oval shape with the axial direction as the longitudinal direction and the opposite sides along the axial direction as viewed from the radial direction. In the example shown in FIG. 21, the protrusion 20a has a circular shape when viewed from the radial direction. In the example shown in FIGS. 20 and 21, the raised portion 20 c is waved along the circumferential direction, has a curved guide surface 20 e, and the guide piece 20 d is along the axial direction when viewed from the radial direction. The opposite sides and the corners are R-shaped parallelograms.

  Moreover, although the cam mechanism 20 of the said embodiment is comprised so that the moving body 6 and piston 7 may advance / retreat according to the generation | occurrence | production timing of a click feeling, it is not limited to this. For example, in the above-described embodiment, the click feeling is generated once when the moving mechanism 6 and the piston 7 are advanced and retracted by the cam mechanism 20, but a plurality of click feelings may be generated when the fixed stroke is advanced and retracted. Furthermore, the cam mechanism 20 may operate independently of the click mechanism.

  Further, the cam mechanism 20 of the above-described embodiment may be any mechanism that moves the movable body 6 and the piston 7 forward and backward by a certain amount, and may move backward by a certain amount and then move backward by a certain amount, or may be fixed after moving backward by a certain amount. The amount may be advanced.

  Moreover, in the said embodiment, although the rotational type by the screwing part 9 is employ | adopted as an extrusion mechanism, it is not limited to this, For example, mechanical extrusion mechanisms, such as a knock type, and a squeeze type extrusion mechanism are used. It is also possible to adopt. Moreover, in the said embodiment, although the cylindrical cam mechanism is employ | adopted as the cam mechanism 20, of course, it is also possible to employ | adopt another cam mechanism.

  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. In the above description, the ratchet mechanism 8 also serves as a click mechanism, and the ratchet teeth 8a and 8b correspond to a pair of click protrusions (click teeth).

  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, 2nd cylinder member), 4 ... Screw cylinder, DESCRIPTION OF SYMBOLS 6 ... Moving body (moving part), 7 ... Piston (moving part), 8 ... Ratchet mechanism (clicking mechanism), 9 ... Screwing part (extrusion mechanism), 18a ... Opening part, 20 ... Cam mechanism, 20a ... Projection part , 20b ... guide portion, 20d ... guide piece (projection), 20e, 20f ... guide surface, 100 ... application material extrusion container, D ... gap, M ... application material.

Claims (9)

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 part disposed in the container moves forward or backward by an extrusion mechanism, and the coating material filled in the filling region in the container A coating material extrusion container that extrudes and discharges from the opening at the tip of the container,
A coating material extruding container comprising a cam mechanism for advancing and retracting the moving part by a predetermined amount each time the container front part and the container rear part are rotated relative to each other by a fixed rotation amount in the one direction.   2. The coating material extruding container according to claim 1, wherein the cam mechanism moves the moving part forward and backward by a predetermined amount by a rotational force of relative rotation between the container front part and the container rear part. The moving part is configured to include a piston that defines the filling region,
The coating material extruding container according to claim 1, wherein the cam mechanism moves the piston forward and backward by a predetermined amount. The cam mechanism is
A guide portion provided on either one of the container front part or the container rear part so as to be capable of synchronous rotation;
A protrusion that is provided on the other side of the container front part or the container rear part so as to be capable of synchronous rotation, and is guided by the guide part,
The guide portion includes a guide surface that is inclined with respect to a cross section orthogonal to the axial direction,
The said protrusion part slides relatively with respect to the said guide surface, The coating material extrusion container as described in any one of Claims 1-3 characterized by the above-mentioned. The cam mechanism is a cylindrical cam mechanism,
The guide portion is provided on the outer peripheral surface of the first cylindrical member,
The said protrusion is provided in the internal peripheral surface of the 2nd cylinder member, The coating material extrusion container of Claim 4 characterized by the above-mentioned. The front side or the rear side of the guide portion is defined by a plurality of protrusions arranged in the circumferential direction,
The coating material extruding container according to claim 4, wherein a gap is formed between the plurality of protrusions so that the protrusion can be inserted in the axial direction.   The coating material extrusion according to any one of claims 1 to 6, further comprising a click mechanism that generates a click feeling each time the container front part and the container rear part are relatively rotated by the constant rotation amount. container.   The application according to any one of claims 1 to 7, further comprising a ratchet mechanism that is provided in the container and allows only relative rotation between the container front part and the container rear part in the one direction. Material extrusion container. The moving part is configured to include a screwing part that constitutes the push-out mechanism,
A screw cylinder that is screwed with the screw part;
The coating material extruding container according to claim 1, wherein the cam mechanism moves the moving portion forward and backward by a predetermined amount by moving the screw cylinder forward and backward by a predetermined amount.