KR101695661B1 - Coating material extruding container - Google Patents

Abstract

A coating material extrusion container capable of facilitating manufacture is provided.
The coating material extrusion container 200 is provided with a moving body 206 and a threaded engaging portion 70 in a container including a body case 202 and an operating case 203. The body case 202 and the operating case 203 The movable body 206 is moved forward by the threadedly engaging portion 70 and is provided with the cylinder 201. [ The threaded engagement portion 70 includes a female screw 71 as a ridge extending in a helical shape from the inner peripheral surface 201d of the cylinder 201. [ An opening 211 is formed in the peripheral wall of the cylinder 201 and the female screw 71 is provided so as to be continuous with the opening 211. The side surface 211a constituting the edge of the opening 211 is extended along the locus drawn by the female screw 71 when viewed from the side facing the opening 211. [ In the coating material extrusion container 200, by using the opening portion 211, it is possible to form the female screw 71 without using one core pin and rotating the core pin.

Description

[0001] COATING MATERIAL EXTRUDING CONTAINER [0002]

The present invention relates to a coating material extrusion container for extruding and using a coating material

Conventionally, as a coating material extrusion container, for example, as disclosed in Patent Document 1, there is a container which is housed in a main body, a line passage and a counterpart mounted rotatably on the leading end side of the main body, (Ash) is slidably mounted on the pipe member. In this coating material extrusion container, when the line passing body is relatively rotated, the pipe member is advanced with the rod-shaped body with respect to the cylinder by the screwing action of the first screw coupling portion (screw coupling portion) And the rod-shaped body is advanced with respect to the tube and the pipe member by the screw coupling action of the rod-shaped portion (screw-coupled portion), and as a result, the rod-shaped body is used.

Japanese Patent Application Laid-Open No. 2006-305318 Japanese Patent Laid-Open No. 2009-39173

However, in the above-described conventional coating material extrusion container, in general, when the female screw of the threaded portion is injection molded, it is necessary to rotate and remove the core pin (center) after molding, There is a fear that it becomes complicated. In this respect, it is also conceivable to injection-mold the female screw by abutting a pair of core pins against each other (see, for example, Patent Document 2). However, in this case, there is no need to rotate and pull out the core pin, but there is a fear that the tip shape of the core pin becomes complicated.

An aspect of the present invention is to provide a coating material extrusion container capable of facilitating manufacture, which is made in view of the above-mentioned circumstances.

In order to solve the above problems, a coating material extrusion container according to one aspect of the present invention includes a movable body and a screw engagement portion in a container including a container front side portion and a container rear side portion, Wherein the threaded portion is provided with a female screw as a ridge extending in a helical shape on the inner peripheral surface of the tubular member And the female screw is provided so as to be continuous with the opening, and one side constituting the edge of the opening when viewed from the side facing the opening, It extends along the trajectory of the screw.

In this coating material extrusion container, by using the opening portion, it is possible to form the female screw of the threaded portion without using one core pin and rotating the core pin. That is, for example, when the mold and the core fin are assembled together, the convex portion in the radial direction of the mold and the predetermined space corresponding to the female screw can be defined by the core pin. Then, at the time of molding (that is, after the molten resin is filled and solidified in a predetermined space to form a female screw), the mold is separated so that the convex portion of the mold is removed, and the core pin is linearly It can slide out. Therefore, the production of the coating material extrusion container can be facilitated.

In the coating material extrusion container according to one aspect of the present invention, the opening is provided so that the inner surface on the rear side thereof is connected to the front end surface of the female screw, or the inner surface on the front side thereof is connected to the rear surface of the female screw have.

In the coating material extrusion container according to one aspect of the present invention, a pair of sides connected to both ends of the one side constituting the edge of the opening when viewed from the side facing the opening may extend along the axial direction. In this case, for example, when forming an undercut-shaped female screw, the release can be easily performed without forcibly removing it.

In the coating material extrusion container according to one aspect of the present invention, a step portion having a height equal to or greater than the female screw is formed on the inner circumferential surface of the tubular member at a position corresponding to the opposite side, And the inside diameter of the tubular member may be reduced in diameter through the stepped portion in the direction from the one side to the opposite side. In this case, for example, when an undercut-shaped female screw is formed, it is further possible to easily release it without forcibly removing it.

In the coating material extrusion container according to one aspect of the present invention, the opening portion may be formed at two places where the tubular member is rotated 180 ° in the circumferential direction. In this case, for example, it is possible to cope with so-called two-directional division (using a split mold which is opened in two directions in the upper and lower directions as a mold).

According to one aspect of the present invention, it is possible to provide a coating material extrusion container which can be easily manufactured.

1 is a longitudinal sectional view showing an initial state of a coating material extrusion container according to one embodiment.
Fig. 2 is a longitudinal sectional view showing the state of the forward limit of the pipe member in the coating material extrusion container of Fig. 1; Fig.
Fig. 3 is a longitudinal sectional view showing the state of the advance limit of the piston in the coating material extrusion container of Fig. 1; Fig.
Fig. 4 is a side view showing the operation cylinder of the coating material extrusion container of Fig. 1 partially sectioned. Fig.
5 is a sectional view taken along the line AA in Fig.
Fig. 6 is a front view showing the operating box of Fig. 4;
7 (a) is a side view showing the moving screw cylinder of the coating material extrusion container of Fig. 1, and Fig. 7 (b) is a bottom view showing the moving screw cylinder of Fig. 7 (a).
Fig. 8 is a sectional view showing the moving screw cylinder of Fig. 7 (a). Fig.
Fig. 9 is a perspective view showing a moving body of the coating material extrusion container of Fig. 1;
10 (a) is a side view showing the piston of the coating material extrusion container of Fig. 1, and Fig. 10 (b) is a sectional view showing the piston of Fig. 10 (a).
Fig. 11 is a bottom view showing the conduit of the coating material extrusion container of Fig. 1; Fig.
12 is a sectional view taken along line BB of Fig.
Fig. 13 is a bottom view showing a pipe member of the coating material extrusion container of Fig. 1 partially sectioned. Fig.
14 is a cross-sectional view taken along line CC in Fig.
Fig. 15 is an enlarged cross-sectional view showing a partially enlarged cross-sectional view corresponding to Fig. 12 in the cylinder of Fig. 11;
16 is an enlarged cross-sectional view along the DD line in Fig.
FIG. 17 is a view for explaining a method of manufacturing the cylinder of FIG. 11;
Fig. 18 is a perspective view showing an operation cylinder of a coating material extrusion container according to another embodiment in section; Fig.
19 is a perspective view showing a moving screw cylinder of a coating material extrusion container according to another embodiment;
20 is a cross-sectional view illustrating a ratchet mechanism of a coating material extrusion container according to another embodiment;
21 is another cross-sectional view illustrating a ratchet mechanism of a coating material extrusion container according to another embodiment;

Best Mode for Carrying Out the Invention Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same or equivalent elements are denoted by the same reference numerals, and redundant explanations are omitted.

Fig. 1 is a longitudinal sectional view showing an initial state of a coating material extrusion container according to an embodiment, Fig. 2 is a vertical sectional view showing a state of a forward limit of a pipe member in the coating material extrusion container of Fig. 1, 1 is a longitudinal sectional view showing the state of the piston advance limit in the coating material extrusion container of Fig. 1; Fig. As shown in Fig. 1, the coating material extrusion container 200 of the present embodiment accommodates a coating material M, and is capable of being extruded and recovered by a user's operation as appropriate.

Examples of the coating material M include various bar cosmetic materials such as lipstick, lip gloss, eyeliner, eye color, eyebrow, lip liner, cheek color, concealer, beauty stick, hair color, It is preferable to use rod-shaped articles of very soft (semi-solid, soft solid, soft, jelly, mousse, and dough including them). It is also possible to use a bar-shaped rod having an outer diameter of 1 mm or less and a rod having a diameter of 10 mm or more.

As the coating material M, it is preferable to use a semi-solid material having a relatively low hardness, particularly preferably a coating material M having a hardness of about 0.4N to 0.9N. The hardness of the coating material (M) is determined by a general measurement method used for measuring the hardness in cosmetics. In this case, for example, FUDOH RHEO METER [RTC-2002D.D] (manufactured by Rheotech Co., Ltd.) was used as a measuring device and a steel bar (adapter) of 2 mm in diameter was pressed at a rate of 6 cm / min The strength (intensity) at the peak occurring in the coating material M when the coating material M is inserted into the coating material M by a depth of about 10 mm is defined as hardness (penetration degree).

The coating material extrusion container 200 includes a cylinder 201 having a discharge port (opening portion) 201a at the front end thereof filled with a coating material M therein and a cylinder 201 inserted in the front portion thereof, A main body cylinder 202 which is engaged with a rear end portion of the main body cylinder 202 in an axial direction and a rotational direction of the axial line (hereinafter, simply referred to as "rotational direction" And the container rear side is constituted by the cylinder 201 and the body case 202 and the rear side of the container is constituted by the operation cylinder 203 .

The term " axial line " means a center line extending forward and backward of the coating material extrusion container 200, and the term " axial direction " The discharging direction of the application material M is forward (the advancing direction) and the collecting direction of the coating material M is rearward (retracting direction).

This coating material extrusion container 200 is provided with a moving thread cylinder 205, a moving body 206 and a piston 207 inside thereof. The moving threaded cylinder 205 is screwed to the cylinder 201 through the first threaded portion 70. The movable body 206 is engaged with the movable screw tube 205 through the second screw coupling portion 80 while synchronously rotatable and axially movably engaged with the operation cylinder 203. [ The piston 207 is an extruded portion to be mounted on the front end (front end) of the moving body 206 and is internally inserted closely to the pipe member 208 to be described later to form (form) the rear end of the filled region X.

In this embodiment, the coating material extrusion container 200 is provided with a pipe member 208 internally slidably inserted in an axial direction with respect to the cylinder 201, a movable screw cylinder 205 and an operation cylinder 203, And a ratchet mechanism 209 that allows only one direction of relative rotation of the ratchet 209.

In the coating material extrusion container 200, when the main body cylinder 202 (which may be the cylinder 201) and the operation cylinder 203 are relatively rotated in one direction, the screw thread engagement operation of the first screw coupling portion 70 When the movable screw cylinder 205 advances and the pipe member 208 moves forward with the movable body 206 and the piston 207 relative to the cylinder 201 and further relatively rotated in one direction, The moving body 206 and the piston 207 are advanced with respect to the cylinder 201 and the pipe member 208 by the screw coupling action of the piston 206 and the piston 206. [ When the main cylinder 202 and the operating cylinder 203 are relatively rotated in the other direction opposite to the one direction, the moving screw cylinder 205 is retracted by the screwing action of the first screw engaging portion 70, The pipe member 208 retreats with respect to the cylinder 201 together with the moving body 206 and the piston 207.

The body case 202 is formed of, for example, an ABS resin (copolymerization synthetic resin of acrylonitrile-butadiene-styrene) and is formed in a cylindrical shape. The body casing 202 is provided with a knurling tool 202a having a plurality of concave-convex portions arranged in the circumferential direction and having a predetermined length extending in the axial direction, ). An annular concave / convex portion 202b (in which the concavo-convex portion is arranged in the axial direction) for engaging the cylinder 201 in the axial direction is provided on the inner circumferential surface of the front end portion of the body case 202. [ A convex portion 202c extending in the circumferential direction along the inner circumferential surface is formed on the rear side of the knurling tool 202a on the inner peripheral surface of the rear side of the body case 202 by axially engaging the operation cylinder 203 .

Fig. 4 is a side view showing a part of the operation cylinder of the coating material extrusion container of Fig. 1, Fig. 5 is a sectional view taken along line A-A of Fig. 4, and Fig. 6 is a front view of the operation cylinder of Fig. As shown in Figs. 4 to 6, the operation cylinder 203 is a cylindrically shaped, for example, molded with ABS resin and having a bottom opening to the front. The front end side of the operating cylinder 203 is provided with a front end cylinder portion 203a whose outside diameter is smaller than the outer diameter of the body cylinder 202 through the step 203b.

An annular convex portion 213 which is axially engaged with the body case 202 is provided on the front side of the outer peripheral surface of the front end shell portion 203a. A plurality of one projecting portions 209a constituting the ratchet teeth of the ratchet mechanism 209 are provided on the inner peripheral surface 223 of the front end portion 203a. These one projecting portions 209a are protruded from the inner circumferential surface 223 of the front end cylindrical portion 203a at a position 12 times the circumferential direction so as to protrude radially inward. One of the projecting portions 209a here is provided so as to have a sawtooth shape in the circumferential direction. One of the protruding portions 209a extends along the axial direction so as to be in constant contact with the other protruding portion 209b to be described later when the movable screw cylinder 205 moves back and forth.

Side surfaces 209a1 and 209a2 of one side in the circumferential direction of the protruding portion 209a of these one side (the side where the main cylinder 202 and the operation cylinder 203 are rotated relative to each other in one direction to be described later with the other protruding portion 209b) Is inclined with respect to the tangent plane of the inner peripheral surface 223 so as to have a mountain shape. The side 209a2 of the one projecting portion 209a on the other side in the circumferential direction (the side where the main body case 202 and the operation case 203 abut against the other projecting portion 209b described later when the operation case 203 is relatively rotated in the other direction) Is substantially perpendicular to the tangent plane of the inner peripheral surface 223.

At the center of the bottom of the operation cylinder 203, a shaft body 233 which is engaged with the moving body 206 in the rotating direction is installed. The shaft body 233 has a non-circular outer shape. Specifically, the shaft member 233 is formed in a noncircular cross-sectional shape having a ridge 243 extending axially outward in a radially outward position at a position 6 times in the circumferential direction on the outer circumferential surface of the cylindrical member.

As shown in Figs. 1 and 4, the operating barrel 203 is formed so that its front end barrel 203a is inserted into the main barrel 202 and the step 203b thereof is aligned with the rear end face of the main barrel 202 And the annular convex portion 213 is axially engaged with the convex portion 202c of the body case 202 so that the annular convex portion 213 is axially connected to the body case 202 .

Fig. 7 is a side view showing the moving screw cylinder of the coating material extrusion container of Fig. 1, and Fig. 8 is a sectional view showing the moving screw cylinder of Fig. As shown in Figs. 7 and 8, the moving threaded cylinder 205 is formed of, for example, POM (polyacetal resin) and has a cylindrical shape. The moving threaded cylinder 205 has a front end portion 205a at the front end side and a large diameter portion 205b leading to the rear side of the front end portion 205a thereof and a main body portion 205c extending to the rear side of the large diameter portion 205b ).

The front end portion 205a is provided with a female screw 81 constituting the second screw coupling portion 80 in an area extending a predetermined distance rearward from the front end in the inner peripheral surface thereof. The pitch of the second screw coupling portion 80 is finer than the pitch of the first screw coupling portion 70 and the lead of the first screw coupling portion 70 203) is set larger than the lead of the second screw coupling portion (80).

An annular flange portion 215 which axially abuts against the rear end surface of the pipe member 208 is provided at the center of the outer peripheral surface of the front end portion 205a. An annular convex portion 225 which axially engages with the pipe member 208 is provided on the front side of the outer peripheral surface of the front end portion 205a. The front end portion 205a is configured to be openable in the radially outward direction by a pair of slits 235 formed so as to face each other so as to extend a predetermined length in the axial direction from the front end. The rear end side of the slit 235 is extended so as to have a long oval shape in the circumferential direction as viewed from the side (see Fig. 7). In this way, in order to easily release the mold from the mold and assemble the moving body 206, So that the front end portion 205a is configured to be easily enlarged and opened.

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

The body portion 205c is provided in a portion of the moving threaded cylinder 205 which extends from the axial center portion to the rear end portion in the outer shape of a smaller diameter than the large diameter portion 205b. The main body portion 205c has a protruding portion 209b on the outer circumferential surface 275 at a pair of opposing positions and constituting a ratchet tooth of the ratchet mechanism 209. [ The other projecting portion 209b is engaged with one of the projecting portions 209a (see Fig. 6) in the rotating direction, and is provided so as to protrude outward in the radial direction. A cutout 245 having a U-shaped cross section for communicating the inside and the outside of the moving screw cylinder 205 is formed around the other projecting portion 209b of the main body portion 205c. By this cutout 245, The protruding portion 209b has elasticity in the radial direction.

Specifically, the notch 245 includes a pair of slits 245a and 245b that are struck at both sides in the axial direction of the other projecting portion 209b of the body portion 205c and extend along the circumferential direction, And a slit 245c extending in the axial direction so as to be continuous with the slits 245a and 245b, which is opened at one side in the circumferential direction of the other projecting portion 209b of the other projecting portion 209b. The wall portion surrounded by the notch 44 in the body portion 205c forms an arm 255 which is flexible in the radial direction so that the other projection 209b disposed at the distal end portion of the arm 255, And has a predetermined elastic force (urging force) in the radial direction.

The side 209b1 of the other projecting portion 209b on the other side in the circumferential direction (the side where the main body case 202 and the operation case 203 abut against the one projecting portion 209a when the operation case 203 is relatively rotated in one direction) And is inclined with respect to the tangent plane of the outer peripheral surface 275 so as to be in the mountain shape. The side surface 209b2 of the other protruding portion 209b in the circumferential direction (on the side where the main body case 202 and the operation barrel 203 are rotated relative to each other in the other direction and comes into contact with one of the protruding portions 209a) , And is substantially perpendicular to the tangent plane of the outer circumferential surface (275).

A spring portion 265 is provided at a rear portion of the main body portion 205c than the other projecting portion 209b. The spring portion 265 is a so-called resin spring that can be expanded and contracted in the axial direction, and biases the male screw 72 so that the first screw engaging portion 70 is screwed back. The spring portion 265 is provided by forming a slit 265a extending in a spiral shape along the outer circumferential surface and communicating inside and outside on the main body portion 205c.

1 and 7, the moving threaded cylinder 205 is internally inserted into the main cylinder 202 and the operating cylinder 203, and the other projecting portion 209b is inserted into the operating cylinder 203 And a ratchet mechanism 209 is formed by engaging with one of the projecting portions 209a in the rotating direction.

Fig. 9 is a perspective view showing a moving body of the coating material extrusion container of Fig. 1; Fig. As shown in Fig. 9, the moving body 206 is formed of, for example, a POM and has a cylindrical shape having a flange portion 206a at the tip end side. The moving body 206 is provided with male threads 82 of the second screw engagement portion 80 on the outer peripheral surface extending from the rear side to the rear end side of the flange portion 206a. On the inner circumferential surface of the movable body 206, there is provided a protrusion 206c protruding radially and extending in the axial direction, which is engaged with the operation cylinder 203 in the rotational direction at a position 6 times in the circumferential direction.

As shown in Figs. 1 and 9, the moving body 206 is externally inserted between the shaft body 233 of the operating cylinder 203 and the moving screw cylinder 205 from the rear end side thereof. At this time, the moving body 206 is screwed with the female screw 81 of the moving screw cylinder 205 and the ridge 206c is engaged with the ridges 243, 243 so as to engage with each other in the rotating direction so as to be synchronously rotatable with respect to the operating barrel 203 and movably mounted in the axial direction.

10 (a) is a side view showing a piston of a coating material extrusion container of Fig. 1, and Fig. 10 (b) is a sectional view showing the piston of Fig. 10 (a). 1 and 10, the piston 207 is formed of, for example, PP (polypropylene), HDPE (high density polyethylene), LLDPE (linear low density polyethylene), or the like. An annular projection 207b is provided on the inner peripheral surface of the concave portion 207a recessed in the rear end face of the piston 207 so as to be movable by a predetermined length in the axial direction with respect to the moving body 206 .

A convex portion 207c is provided as a region in close contact with the pipe member 208 at a position four times as large as the circumferential direction on the outer peripheral surface of the piston 207. [ The convex portion 207c is in contact with the pipe member 208 so as to be able to slide with resistance, and extends from the axial center to the rear end. A slight gap (air gap) is formed between the convex portion 207c and the convex portion 207c in the circumferential direction and between the convex portion 207c and the through hole 208s described later of the pipe member 208 Trap), it is possible to prevent the coating material M from spontaneously moving due to environmental changes such as a temperature change. The piston 207 is externally inserted into the front end portion of the moving body 206 and the annular projection 207b is engaged with the moving body 206 in the axial direction so that the piston 207 can be rotated synchronously with respect to the moving body 206 And is mounted so as to be movable in an axial direction (movable within a predetermined range).

Fig. 11 is a bottom view showing the conduit of the coating material extrusion container of Fig. 1, and Fig. 12 is a sectional view taken along line B-B of Fig. As shown in Figs. 11 and 12, the cylinder 201 has a cylindrical shape, and an opening at the front end thereof serves as a discharge port 201a for causing the coating material M to emerge. The cylinder 201 is formed of, for example, PET (polyethylene terephthalate) resin, ABS resin or the like. The discharge port 201a is formed by an inclined angle surface inclined at a predetermined angle with respect to the axial direction. However, the discharge port 201a may be formed into a flat shape formed by a vertical plane in the axial direction or a mountain-shaped shape.

An annular concavo-convex portion 201b for axially engaging the annular concavo-convex portion 202b of the body case 202 is provided on the outer circumferential surface of the cylinder 201. [ A circumferential ridge 201g extending in the axial direction is disposed on the outer circumferential surface of the cylinder 201 at a fourth circumferential position on the rear side from the annular rugged portion 201b to be rotatable with respect to the knurling tool 202a of the main cylinder 202 As shown in Fig.

A plurality of grooves 201c which extend in the axial direction and are engaged with the pipe member 208 in the rotational direction are provided near the rear of the axial center on the inner peripheral surface of the cylinder 201. [ The groove portion 201c here extends at a position four times in the circumferential direction on the inner peripheral surface of the cylinder 201. [ The rear side of the groove 201c on the inner peripheral surface of the cylinder 201 is enlarged through the step 201x and has an inner diameter continuous with the bottom surface of the groove 201c.

A pair of openings 211 as through holes communicating with the inside and outside of the cylinder 201 are formed on the outer circumferential surface of the cylinder 201 on the rear side of the cylinder 201g so as to face each other. 11). Specifically, the opening 211 has a front edge extending in the circumferential direction, and a front edge extending in the circumferential direction. The opening 211 is formed in a substantially rectangular shape as viewed from the opposite direction And includes both side edges extending along the axial direction.

A female screw 71 of the first screw engaging portion 70 is provided on the rear side of the opening portion 211 on the inner circumferential surface of the linear tube 201. The female screw 71 is a pair of ridges extending in a helical shape on the inner circumferential surface of the cylinder 201 so as to be rotated 180 degrees around the axial line at the circumferential position of the opening 211. More specifically, the female screw 71 is formed in the circumferential direction extending from one side edge to the other side edge of the opening 211, and is continuous with the opening 211 in the front side thereof. The spiral direction in which the protrusion as the female screw 71 extends corresponds to the spiral direction of the rear edge of the opening 211.

With respect to the cylinder 201 having the female screw 71, the resin can be easily and appropriately molded using the opening 211. [ For example, when the upper mold, the lower mold and the core fin are mounted to each other, the convex portion in the radially inner side in the upper mold, the convex portion in the radially inner side in the lower mold, A corresponding space can be formed in a pair of sections. After the molding is completed (that is, after the female screw is filled and solidified in the predetermined space and the female screw 71 is formed), the upper convex portion is removed from the one opening 211, And the core pin can be linearly slid in the axial direction after the lower portion of the lower die is separated from the opening 211 in the radial direction by separating the convex portion of the lower die from the other opening 211.

1 and 12, the cylinder 201 is internally inserted into the body case 202 from the rear side, and the annular concavo-convex portion 201b of the body case 202 And the knurling tool 202a of the main cylinder 202 is engaged with the rotation of the knurl tool 202a in the axial direction so that the axial direction and the rotational direction of the main cylinder 202 And is integrated with the main body case 202. [0053] The male screw 71 is threadedly engaged with the male screw 72 of the moving screw cylinder 205. The male screw 71 is screwed into the screw thread 72 of the movable screw cylinder 205. [

FIG. 13 is a bottom view showing a pipe member of the coating material extrusion container of FIG. 1 in a partially sectioned state, and FIG. 14 is a sectional view taken along line C-C of FIG. As shown in Figs. 13 and 14, the pipe member 208 has a cylindrical shape, and an opening at the front end of the pipe member 208 is formed on an inclined angle surface inclined at the predetermined angle similarly to the discharge port 201a Respectively. The pipe member 208 is formed of, for example, PP or the like. The thickness for forming the through holes 208s of the pipe member 208 is preferably constant and minimized, and is, for example, 0.2 to 0.5 mm.

A plurality of ridges 218 extending in the axial direction are provided on the rear side of the central portion of the axial direction on the outer peripheral surface of the pipe member 208 in the rotational direction to the cylinder 201. In order to facilitate positioning in the circumferential direction at the time of assembling, the protrusions 218 are provided at four positions of the circumferential unevenness (here, two positions out of four positions in the circumferential direction are displaced in the circumferential direction) have. The rear end of the outer circumferential surface of the pipe member 208 is enlarged through the step 208x. The rear end portion of the inner circumferential surface of the pipe member 208 is provided with a pair of protruding portions 228 which axially engage with the moving screw cylinder 205 and which protrude radially inward.

As shown in Figs. 1 and 14, the pipe member 208 is internally inserted into the cylinder 201 and is slidable in the axial direction with respect to the cylinder 201. As shown in Fig. At this time, the groove portion 201c of the cylinder 201 is engaged with the protrusion 218 in the rotational direction, whereby the relative rotation of the pipe member 208 with respect to the cylinder 201 is restricted. The front end of the pipe member 208 is positioned behind the front end of the cylinder 201 by a predetermined amount in the initial state and is positioned substantially at the same position as the front end of the cylinder 201 at the advance limit Reference).

The pipe member 208 is inserted externally to the front side of the moving screw cylinder 205 and the rear end thereof is brought into contact with the flange portion 206a of the moving screw cylinder 205, Is axially engaged with the annular convex portion 225 of the moving screw cylinder 205 and is thus axially connected to the moving screw cylinder 205. [ The piston 207 is inserted into the pipe member 208 in a sliding contact manner.

Here, in the present embodiment, the coating material M is filled (filled without gap) so as to be filled in the through hole 201s of the cylinder 201 from the inside of the through hole 208s of the pipe member 208 in the initial state, The filling region X in which the coating material M is filled is composed of the inner circumferential surface of the cylinder 201 and the inner circumferential surface of the pipe member 208 and the front surface of the piston 207.

In the through hole 201s of the cylinder 201, at least the inner circumferential surface, which is the inner surface of the region where the coating material M is filled, extends straight along the axial direction. Specifically, in the inner circumferential surface constituting the through hole 201s, the front side region from the front end position of the pipe member 208 in the retreat limit (initial state) of the pipe member 208 is the stepped portion, the corner portion, (Hereinafter simply referred to as " step or the like "), is not inclined with respect to the axial direction, and extends in a straight line parallel to the axial direction. Here, the through holes 201s are formed in a circular shape having a constant cross-sectional shape when viewed from the axial direction in the region where the coating material M is filled, and both edges are parallel to the axial direction as viewed from the side.

6 and 7, the state before the front end cylinder portion 203a of the operation cylinder 203 is inserted into the main body portion 205c of the moving screw cylinder 205 The outer diameter R3 of the distal end portion of the other protruding portion 209b of the main body portion 205c has a larger diameter than the inner diameter R4 of the inner peripheral surface 223 of the front end cylindrical portion 203a. For example, the outer diameter R3 is larger than the inner diameter R4 by a predetermined length, the outer diameter R3 is 9.4 mm, and the inner diameter R4 is 9.0 mm. As shown in Figs. 1 to 3, the other projecting portion 209b is formed in a state in which the front end portion 203a is inserted into the body portion 205c And always abuts against the inner peripheral surface 223.

Next, an example of the operation of the coating material extrusion container 200 will be described.

For example, in the coating material extrusion container 200 in the initial state shown in Fig. 1, the front end of the pipe member 208 is positioned a certain amount behind the front end of the cylinder 201, and in this state, Is in tight contact with the through hole 208s of the pipe member 208 and the through hole 201s of the cylinder 201 and the piston 207. [ The front surface and the stepped surface 208x of the protrusion 218 of the pipe member 208 are located behind the front surface of the groove portion 201c of the tube 201 and the step 201x, 201 by a predetermined amount.

When the cap C is removed by the user in the coating material extrusion container 200 in this initial state and the main cylinder 202 and the operating cylinder 203 are relatively rotated in one direction of the discharge direction, The side surface 209b1 of the other projecting portion 209b of the operating cylinder 203 abuts against the side surface 209a1 of the one projecting portion 209a of the operation cylinder 203 , The operation cylinder 203 and the moving screw cylinder 205 rotate synchronously. Thereby, the movable threaded cylinder 205 and the threaded portion 201 are rotated relative to each other and the first screwed portion (the second threaded portion) constituted by the male thread 72 of the movable threaded cylinder 205 and the female thread 71 of the cylindrical portion 201 70 function so that the moving screw cylinder 205 moves forward with respect to the cylinder 201. [

As a result, the pipe member 208 moves forward with the moving body 206 and the piston 207 with respect to the cylinder 201 as the moving thread cylinder 205 advances, and the coating material M is transferred to the cylinder 201 (That is, the pipe member 208 is advanced with the coating material M with respect to the cylinder 201), and the coating material M emerges from the discharge port 201a.

2, the one-way relative rotation continues, and when the front end of the pipe member 208 is positioned at substantially the same position as the front end of the linear pipe 201, And the stepped portion 208x are brought into contact with the front surface of the groove portion 201c of the cylinder 201 and the stepped portion 201x so that the advancement of the pipe member 208 and the moving screw cylinder 205 is stopped, The screwing action of the engaging portion 70 is stopped, whereby the pipe member 208 and the moving screw cylinder 205 reach the advancing limit.

When the relative rotation in one direction is further continued, a larger rotational force than that before the stopping is applied to the manipulating cylinder 203 and the moving screw cylinder 205, and the other protruding portion 209b is slid as one of the protruding portions 209a The operation cylinder 203 and the moving thread cylinder 205 are rotated (called " idle ") by the ratchet. As a result, only the screwing action of the male thread 82 of the moving body 206 and the second thread engaging portion 80 constituted by the female thread 81 of the moving thread cylinder 205 acts, The coating material M is pushed out by the piston 207 in the cylinder 208 and advanced (that is, the coating material M advances with respect to the cylinder 201 and the pipe member 208). Then, the moving body 206 and the piston 207 reach the advance limit (see Fig. 3).

On the other hand, for example, in the coating material extrusion container 200 after use, when the main cylinder 202 and the operation cylinder 203 are relatively rotated in the other direction of the collection direction, The side surface 209b2 (see Fig. 7) of the operating cylinder 203 abuts against the side surface 209a2 (see Fig. 6) of one of the projecting portions 209a of the operating cylinder 203 and is engaged The operation cylinder 203 and the moving screw cylinder 205 rotate synchronously. As a result, the moving threaded cylinder 205 and the cylinder 201 are rotated relative to each other, and the screwing action of the first screwing portion 70 functions to move the moving screw cylinder 205 backward with respect to the cylinder block 201.

As a result, as the moving threaded cylinder 205 retracts, the pipe member 208 retracts with respect to the cylinder 201 together with the moving body 206 and the piston 207, (That is, the pipe member 208 is retracted with the coating material M with respect to the cylinder 201), and the coating material M is embedded in the discharge port 201a.

When the relative rotation in the other direction is continued, the male screw 72 of the moving screw cylinder 205 exits from the female screw 71 of the cylinder 201, and the screwing action of the first screw engaging portion 70 And the moving threaded cylinder 205, the pipe member 208, the moving body 206 and the piston 207 reach the retraction limit. In this state, when relative rotation in the other direction continues further in that the male screw 72 is biased forward by the elastic force of the reduction of the spring portion 265 (see Fig. 7), the female screw 71 and When the retraction limit of the movable screw cylinder 205 is detected by the user and the relative rotation is performed in one direction, the first screw engagement portion 70 ) Is screwed back immediately.

As described above, in the coating material extrusion container 200 of this embodiment, the coating material M is spread from the inside of the through hole 208s of the pipe member 208 to the inside of the through hole 201s of the cylinder 201 And at least the region where the coating material M is filled is linearly extended along the axial direction on the inner peripheral surface of the through hole 201s of the cylinder 201. [

As a result, when the pipe member 208 advances relative to the cylinder 201, the filled coating material M does not collapse due to the inner peripheral surface shape of the through hole 201s, It is possible to prevent the coating material M from entering, being coated or collapsed in the stepped portion. Also, even when the coating material M that has appeared is expanded, it is possible to prevent the coating material M from entering or coming off and collapsing on the step or the like when the pipe member 208 is retracted with respect to the cylinder 201.

Therefore, according to the present embodiment, it is possible to suppress the collapse of the shape of the coating material M when the pipe member 208 advances and retreats with respect to the cylinder 201. That is, the soft coating material M can be surely extruded and recovered in a certain amount, and can be protected.

Generally, in use, the coating material M extruded from the pipe member 208 acts on the front end of the pipe member 208 as a point. Therefore, in order to suppress collapse such as breakage of the coating material M, the front end of the pipe member 208 is preferably located forward (on the user side). On the other hand, if the front end of the pipe member 208 protrudes forward than the front end of the linear tube 201, the tip of the pipe member 208 tends to contact the user, and the usability may be deteriorated.

On the contrary, in the present embodiment, as described above, the front end of the pipe member 208 is positioned at approximately the same position as the front end of the cylinder 201 at the forward limit. Therefore, it becomes possible to position the front end of the pipe member 208 at the frontmost position in a range where it is difficult for the user to contact with the user, and as a result, the shape of the coating member M is suppressed It is possible to further suppress the influence.

As described above, in the state before the front end cylinder portion 203a of the operation cylinder 203 is inserted into the main body portion 205c of the moving screw cylinder 205, the other projecting portion 209b of the main body portion 205c The outer diameter R3 of the front end portion in the front end portion 203a has a diameter larger than the inner diameter R4 of the inner circumferential surface 223 of the front end portion 203a (see Figs. 6 and 7). In a state in which the front end portion 203a is inserted into the body portion 205c, the other projection 209b having elastic force in the radial direction always keeps the one projection portion And is always in contact with the inner circumferential surface 223 of the front end cylindrical portion 203a so as to be engaged with the first end surface 209a in the rotating direction.

Therefore, the main body portion 205c (the moving thread cylinder 205) is held by the front end portion 203a (the operating cylinder 203) without increasing the number of parts, and the resistance is constantly generated As a result, it is possible to suppress the rattling of the coating material extrusion container 200.

In the present embodiment, as described above, when the body case 202 and the operation cylinder 203 are further rotated relatively to each other in one direction, the other protrusion 209b is elastically deformed in the radial direction by the cutout 245 The side surface 209b1 of the other protruding portion 209b is slid as it is engaged with the side surface 209a1 of the one protruding portion 209a in the rotating direction at the point where the protruding portion 209b is bent inward in the radial direction, Then, it is engaged again in the rotation direction. As a result, it is possible to give the user a click feeling at the time of engagement and disengagement of the one projecting portion 209a and the other projecting portion 209b. This makes it possible to use one of the projecting portions 209a and the other of the projecting portions 209b as a click mechanism for sensing the further advancement of the coating material M. [

In the present embodiment, as described above, the one protruding portion 209a and the other protruding portion 209b are integrally formed with the ratchet mechanism 209 (only one of the protruding portions 209a and 209b) that allows relative rotation of the main body case 202 and the operation case 203 in one direction ).

Incidentally, in the present embodiment, as described above, the cutout 245 is formed around the other projecting portion 209b of the main body portion 205c to impart elastic force to the other projecting portion 209b. Alternatively, however, In addition, a notch may be formed around one projecting portion 209a of the front end portion 203a so as to impart elastic force to one of the projecting portions 209a.

In this embodiment, the inner diameter of the front end portion of one of the protruding portions 209a in the state before the front end cylindrical portion 203a is externally inserted into the main body portion 205c is larger than that of the outer peripheral surface 275 of the main body portion 205c One protruding portion 209a may always abut on the outer circumferential surface 275 with the diameter smaller than the outer diameter and the front end cylindrical portion 203a is externally inserted into the main body portion 205c.

Fig. 15 is an enlarged cross-sectional view partially enlarging the cross-sectional view corresponding to Fig. 12 in the cylinder of Fig. 11, and Fig. 16 is an enlarged cross-sectional view along the line D-D in Fig. As shown in Figs. 11, 15 and 16, the cylinder 201 is a cylindrical tubular member and has a female screw 71 as a projection extending in the inner circumferential surface 201d as described above . The female screw 71 is provided so as to be continuous with the opening 211 penetrating the circumferential wall of the cylinder 201 in the radial direction.

11 and 16), the opening 211 is rectangular and the one side 211a constituting the rear edge (rear edge) of the opening 211 is formed by a female screw (71). That is, the side surface 211a is substantially the same line as the trajectory drawn by the female screw 71, and extends with an inclination angle substantially equal to that of the female screw 71. [ In other words, as viewed from the direction opposite to the opening 211, the opening 211 has an inclination substantially equal to the inclination with respect to the extending direction of the female screw 71 in the one side 211a. The opening surface 211x on the rear side of the opening 211 is provided so as to be continuous with the front end surface 71x of the female screw 71 (to be flush with the surface).

A pair of side edges 211b and 211b connected to both ends of the side surface 211a and forming the edge of the opening 211 as viewed from the side facing the opening 211 extend along the axial direction. On the inner circumferential surface of the cylinder 201 at a position corresponding to the opposing side 211c which constitutes the edge of the opening 211 and which is a front side edge (front side edge) facing the side 211a, 71 are provided along the circumferential direction. The inner diameter of the cylinder 201 is reduced in diameter through the stepped portion 201k as it goes toward the front side in the axial direction (in the direction from the side surface 211a side to the opposite side surface 211c side). Here, the diameter reduction means that the inner diameter of the tubular member is reduced in one direction.

Next, an example of a method of manufacturing the cylinder 201 having such a structure will be described with reference to Fig.

Fig. 17 is a view for explaining the method of manufacturing the cylinder of Fig. 11; 17, the outer mold for forming the outer shape of the front side taper portion of the cylinder 201 is omitted for convenience of explanation. As shown in Fig. 17, first, a core pin 50 having a predetermined mold shape on its outer surface is prepared. Further, a slide 61 as an upper split mold and a slide 62 as a lower split mold are prepared as a mold (molded outer shape) having a predetermined mold shape on the inner side. The slides 61 and 62 are arranged in combination so that the core pin 50 is enclosed in a predetermined manner and the molten resin is injected into the gap between the core pin 50 and the slides 61 and 62. As a result, the molten resin flows into the gap, and the molten resin is solidified thereafter, whereby the cylinder 201 is formed.

Here, the core fin 50 is formed in a stepped cylindrical shape and has a stepped portion 51 for forming the stepped portion 201k of the cylinder 201 and provided along the circumferential direction. The front side of the core fin (50) is smaller in diameter than the step (51) in the rear side. Two opening portions are formed on the outer circumferential surface of the core fin 50 to be rotated by 180 占 in the circumferential direction to form the female screw 71 and the opening recess portion 52 for forming the opening portion 211. [ The opening concave portion 52 is provided continuously on the rear side of the step portion 51 and opens radially outward and axially forward.

The opening concave portion 52 has a substantially rectangular shape when viewed in the opposite direction (the upward direction or the downward direction). The opening concave portion 52 includes a rear edge extending along the spiral direction with respect to the circumferential direction and both side edges extending along the axial direction. The rear edge of the opening concave portion 52 extends along the locus drawn by the female screw 71 as viewed from the direction toward the opening concave portion 52. The rear wall surface of the opening concave portion 52 corresponds to the rear end surface 71y of the female screw 71 (see Fig. 15). The depth of the opening concave portion 52 is smaller than the height of the step portion 51. In other words, the height of the step portion 51 is equal to or larger than the depth of the opening concave portion 52 .

On the other hand, the slides 61 and 62 have the same shape as each other, and have the convex portions 63 for forming the openings 211, respectively. The convex portion 63 has a substantially rectangular shape and protrudes inward in the radial direction. Specifically, the convex portion 63 corresponds to the opposite side 211c of the opening 211 and corresponds to the front side edge extending along the circumferential direction and the front side edge corresponding to the side edge 211a of the rear edge of the opening 211 Includes a rear edge extending along the spiral direction with respect to the circumferential direction and both side edges corresponding to the side edge 211b of the opening 211 and extending along the axial direction. The rear edge of the convex portion 63 extends along the locus drawn by the female screw 71. The front end surface (radially inward surface) of the convex portion 63 has a curved surface shape that is the same as the bottom surface of the opening concave portion 52. [

When the slides 61 and 62 are combined with the core pin 50, the convex portion 63 is formed in a state in which the front edge of the slider 61 is positioned at the edge of the step portion 51 of the core pin 50, Is disposed in the opening concave portion (52) of the pin (50), and its front end face abuts against the bottom surface of the opening concave portion (52). As a result, a predetermined space corresponding to the shape of the female screw 71 is formed between the convex portion 63 and the opening recessed portion 52.

Then, at the time of molding (i.e., after the molten resin is filled and solidified in the predetermined space and the female screw is formed), the convex portion 63 of the slide 61 falls outward in the radial direction, So that the convex portion 63 of the slide 62 falls outward in the radial direction and the slide 62 is opened downward. Further, the core pin 50 is linearly slid rearward along the axial direction, and is pulled out from the inside of the cylinder 201. Thus, the forming of the cylinder 201 is completed.

As described above, in the present embodiment, by using the opening 211 of the cylinder 201, one core pin 50 is used and the core pin 50 is not rotated, The female screw 71 of the first screw coupling portion 70 can be formed without forcibly pulling out the female screw 71. Therefore, the production of the coating material extrusion container 200 can be facilitated.

In the present embodiment, the pair of side edges 211b extend along the axial direction when viewed from the side facing the opening 211. [ Thus, for example, when the female screw 71 in the form of an undercut is molded, the release can be easily performed without forcibly removing it.

A stepped portion 201k having a height equal to or greater than the height of the female screw 71 is provided on the inner peripheral surface of the cylinder 201 in the circumferential direction at a position corresponding to the opposite side 211c. The inner diameter of the cylinder 201 is reduced in diameter on the front side through the stepped portion 201k. In this case, for example, when the female screw 71 in the form of an undercut is molded, it is further possible to easily release the male screw 71 without forcibly removing it.

In the present embodiment, the openings 211 are formed at two positions rotated 180 ° in the circumferential direction in the cylinder 201. Thereby, during the molding of the cylinder 201, it is possible to carry out so-called two-directional division, which is opened in the upper and lower directions using the slides 61 and 62. [

However, in this embodiment, the pair of side edges 211b of the opening 211 may extend so as to extend outward as it goes toward the front side. Even in this case, for example, when the female screw 71 in the shape of an undercut is molded, the release can be easily performed without forcibly removing it. In the case where the female screw 71 can be formed by pulling the core pin 50 forward, even if the inner surface on the front side of the opening portion 211 is provided to be connected to the rear end surface of the female screw 71 do.

In the present embodiment, the rear end surface 71y (see Fig. 16) of the female screw 71 is provided on one end side in the circumferential direction (when the body cylinder 202 and the operation cylinder 203 are relatively rotated in one direction The side on which the male screw 72 first engages) may be inclined such that the width in the axial direction of the female screw 71 becomes smaller as it goes toward the one end side. In other words, one end in the circumferential direction on the rear end surface 71y of the female screw 71 may be tapered so that one end side in the circumferential direction tapers down. Thereby, for example, the female screw 71 and the male screw 72 can be screwed easily.

Next, a coating material extrusion container according to another embodiment will be described with reference to Figs. 18 to 21. Fig. In the following description, the same descriptions as those of the coating material extrusion container 200 are omitted, and the differences are mainly described.

FIG. 18 is a perspective view showing an operation cylinder of a coating material extrusion container according to another embodiment in section, FIG. 19 is a perspective view showing a moving screw cylinder of a coating material extrusion container according to another embodiment, and FIG. Fig. 21 is another cross-sectional view for explaining a ratchet mechanism of a coating material extrusion container according to another embodiment. Fig. 21 is a cross-sectional view for explaining a ratchet mechanism of a coating material extrusion container. As shown in Fig. 18, the coating material extrusion container 300 according to another embodiment includes an operation bar 303 in place of the operation bar 203. As shown in Fig. As shown in Fig. 19, the coating material extrusion container 300 is provided with a moving thread cylinder 305 in place of the moving thread cylinder 205. As shown in Fig.

18, the operating cylinder 303 is a first ratchet tooth constituting one of the moving screw cylinders 305 and the ratchet mechanism 209 that permits relative rotation of the operating cylinder 303 only in one direction, And has a plurality of protruding portions 309a on one side. One of the protruding portions 309a is provided so as to protrude radially inward at a position 12 times the circumferential direction on the inner peripheral surface 223 of the front end cylindrical portion 203a. The one projecting portion 309a includes an abutment surface 11 that abuts the other projecting portion 309b described later when the body case 202 and the operation barrel 303 are relatively rotated in one direction. The side face 12x as the front side portion of the abutment face 11 is inclined in the peripheral direction more than the side face 13x as the rear side portion of the abutment face 11 in the one projecting portion 309a. That is, the degree of inclination of the side face 12x in the circumferential direction is larger than the degree of inclination in the circumferential direction of the side face 13x.

Specifically, the forward portion 14 extending from the rearward to the front end of the central portion in the axial direction of one projecting portion 309a has a mountain-shaped cross section when viewed in the axial direction. The side face 12x of the front side portion 14 in the circumferential direction (the side where the body case 202 is in contact with the other projecting portion 309b when the operation cylinder 303 is relatively rotated relative to the operation cylinder 303 in one direction) (The side contacting the other projecting portion 309b when the body casing 202 and the operation cylinder 303 are relatively rotated in the other direction) and the other side in the circumferential direction Side surface 12y is substantially perpendicular to the tangent plane of the inner circumferential surface 223. The rear side portion 15 extending from the rear end to the rear end of the central portion in the axial direction of one projecting portion 309a has a rectangular cross section when viewed in the axial direction. The side surface 13x and the side surface 13y on the other side in the circumferential direction of the rear side portion 15 are configured to be substantially perpendicular to the tangent plane of the inner circumferential surface 223. [

As shown in Fig. 19, the moving screw cylinder 305 has a second protruding portion 309b as a second ratchet tooth constituting the other side of the ratchet mechanism 209. As shown in Fig. The other projecting portion 309b is resilient in the radial direction by the notch 245. [ The other projecting portion 309b has a rectangular cross section when viewed in the axial direction. Specifically, one side and the other side 16 of the other protruding portion 309b in the circumferential direction are configured to be substantially perpendicular to the tangent plane of the outer circumferential surface 275. [

In this coating material extrusion container 300, as shown in Fig. 20, when the main cylinder 202 and the operation cylinder 303 are relatively rotated in one direction, the side of the other projecting portion 309b of the moving screw cylinder 305 The engaging portion 16 abuts against the side face 13x of the rear side portion 15 at one projecting portion 309a of the operating barrel 303 and engages (engages strongly) in the rotational direction. As a result, the operation cylinder 303 and the moving thread cylinder 305 rotate synchronously, the moving thread cylinder 305 and the cylinder 201 rotate relative to each other, and the screw coupling operation of the first screw coupling portion 70 functions The moving screw cylinder 305 advances with respect to the cylinder 201 (and the operating cylinder 303).

21, the side surface 16 of the other projecting portion 309b abuts against the side surface 12x of the front side portion 14 of the one projecting portion 309a, And then the operation cylinder 303 and the moving thread cylinder 305 rotate in synchronism with each other so that the moving thread cylinder 305 further advances by the screwing action of the first thread engaging portion 70. [ Thereafter, the advancing of the moving thread cylinder 305 is stopped and the screwing action of the first screw engaging portion 70 is stopped, and the moving thread cylinder 305 reaches the forward limit.

When the one-directional relative rotation further continues in this state, a larger rotational force than that before the stopping is applied to the manipulating cylinder 303 and the moving thread cylinder 305 so that the other protruding portion 309b comes to the side of the one protruding portion 309a 12x so that the operating barrel 303 and the moving screw barrel 305 rotate relative to each other (idle).

On the other hand, when the body case 202 and the operation case 303 are relatively rotated in the other direction, the side face 16 of the other projecting portion 309b faces the side face 12y or the side face 13y of the one projecting portion 309a So that the operating barrel 303 and the moving screw barrel 305 rotate in synchronism with each other. As a result, the moving threaded cylinder 305 and the cylinder 201 are rotated relative to each other, and the screwing action of the first screwing portion 70 functions so that the moving threaded cylinder 305 and the operating rod 303 (305) is retracted.

As described above, in the coating material extrusion container 300 of the present embodiment, when the body case 202 and the operation cylinder 303 are relatively rotated in one direction, the degree of inclination in the circumferential direction on the abutment surface 11 The protrusions 309a and 309b come into contact with each other through the side surface 13x of the small rear side portion. Therefore, the projecting portions 309a and 309b are engaged and fixed to each other so that the moving threaded cylinder 305 and the operating cylinder 303 are synchronously rotated, and the moving threaded cylinder 305 can be advanced. The protruding portions 309a and 309b are brought into contact with each other through the side face 12x of the front side portion where the degree of inclination in the circumferential direction on the abutment surface 11 is small when the relative rotation is further made in one direction. Therefore, the other projecting portion 309b can be slid as it is raised on the side surface 12x, and the moving screw cylinder 305 and the operation cylinder 303 can be rotated relative to each other. For example, Breakage or the like can be prevented. As described above, according to the present embodiment, synchronous rotation and relative rotation of the moving screw cylinder 305 and the operation cylinder 303 can be securely controlled.

As a recent coating material extrusion container, there is provided a moving screw cylinder having a screw-engaging portion in a container including a container front side portion and a container rear side portion. When the container front side portion and the container rear side portion are relatively rotated in one direction, So that the threaded engagement cylinder is advanced and stopped relative to the rear side of the container. In such a coating material extrusion container, for example, in order to reliably control the operation of the moving thread cylinder and to prevent breakage of the threaded portion, when the relative rotation is performed in one direction, It is preferable to reliably control the rotation and the relative rotation (idling). That is, there is a demand for providing a coating material extrusion container capable of reliably controlling synchronous rotation and relative rotation of the moving thread cylinder and the container rear side.

Therefore, the coating material extrusion container includes a moving screw cylinder having a screw-engaging portion in a container including a container front side portion and a container rear side portion, and when the container front side portion and the container rear side portion are relatively rotated in one direction, Wherein the movable threaded cylinder is advanced and stopped relative to the rear side of the container by a negative screw coupling action, the ratchet mechanism including a movable thread cylinder and a ratchet mechanism for permitting relative rotation of the container rear side only in one direction, Wherein the movable screw cylinder has a first ratchet teeth constituting one side of the ratchet mechanism and the rear side of the container has a second ratchet teeth constituting the other side of the ratchet mechanism, And an abutment surface abutting against the first ratchet teeth in a circumferential direction when the container rear side is relatively rotated in one direction, The front portion on the abutment surface may be inclined in the peripheral direction with respect to the rear portion on the abutment surface.

In this coating material extrusion container, when the container front side portion and the container rear side portion are relatively rotated in one direction, first, at the point where the first and second ratchet teeth abut on the rear side portion where the degree of inclination in the circumferential direction on the abutting surface is small, So that the moving threaded cylinder and the container rear side can be synchronously rotated. As a result, the movable screw cylinder can be advanced. The second ratchet teeth can be slid as the first ratchet teeth are lifted when the first and second ratchet teeth are engaged with each other on the front side portion where the degree of inclination is small on the abutment surface when relatively rotated in one direction . Therefore, the moving screw cylinder and the container rear side can be relatively rotated. Therefore, according to the coating material extrusion container, synchronous rotation and relative rotation of the moving threaded cylinder and the container rear side can be reliably controlled.

Wherein the rear side portion of the second ratchet teeth has a rectangular cross section when viewed in the axial direction and the front side portion of the second ratchet teeth has a side surface in the circumferential direction when viewed in the axial direction is tangent to the inner circumferential surface of the container rear side portion Sectional shape in which the side surface on the other side in the circumferential direction is substantially perpendicular to the tangent plane. In addition, the first ratchet teeth may have a rectangular cross section when viewed in the axial direction, having elasticity in the radial direction. In this case, the above effect of reliably controlling the synchronous rotation and the relative rotation of the moving thread cylinder and the container rear side appears suitably.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, but may be modified within the scope of the gist of the respective claims, or may be applied to other ones.

Examples of the coating material M include lip gloss, lipstick, eye color, eyeliner, essence, cleaning liquid, nail enamel, nail care solution, nail remover, mascara, The present invention is also applicable to a coating material extrusion container using a liquid coating material such as an ink such as oral care, massage oil, sebum removing liquid, foundation, concealer, skin cream, and marking pen, liquid medicines, It is possible.

In the embodiment described above, when the main cylinder 202 and the operation cylinder 203 are relatively rotated in one direction, the first and second screw-engaging portions 70 and 80 cooperate with each other to screw- The pipe member 208 may advance with the application material M in the opposite direction with respect to the first and second thread engaging portions 70 and 80, The pipe member 208 may be retracted together with the coating material M with respect to the cylinder 201. In the above embodiment, the first and second screw engagement portions 70 and 80 are provided. However, even if only one screw engagement portion is provided and the coating material M is extruded by the single screw engagement portion / May be withdrawn.

However, in the above description, "disengagement of the screwing action" means that the engagement between the screw threads of the male screw and the female screw is released so that the screwing action does not function, and "stopping the screwing action" , And that the screw threads of the male screw and the female screw are engaged with each other and are engaged with each other, so that the screw connection is not functioned. "Threaded return" refers to the step of returning the male screw until it comes into contact with the side of the thread of the female screw.

Note that the " substantially the same position " at the front end of the pipe member 208 and the front end of the cylinder 201 includes substantially the same position and at substantially the same position. . For example, the front end of the pipe member 208 may be located somewhat forward or rearward with respect to the front end of the cylinder 201. [ Similarly, " substantially the same line or inclination angle " includes substantially the same line or inclination angle, and substantially the same line or inclination angle, and includes errors in manufacturing and mounting. At least one of the side surface 211a, the side surface 211b, and the opposite side 211c may be formed to include a curve or a free curve in addition to a straight line.

The above-mentioned male and female threads may have a function similar to that of a screw thread or a screw groove, as well as a group of projections arranged intermittently, or a group of projections arranged intermittently in a spiral shape. The cross-sectional shape of the coating material M is a cross-sectional inner shape of the through-hole 201s of the cylinder 201 and the through-hole 208s of the pipe member 208, but may have an elliptical shape, a track shape, And a variety of non-circular cross-sectional shapes such as a polygonal shape and a water droplet shape having a round shape. The present invention can also be regarded as a manufacturing method for manufacturing (molding) the coating material extrusion container 200.

70 1st screw fitting (screw fitting)
71 Female thread
80 2nd screw fitting (screw fitting)
200, 300 Coating material extrusion container
201 Line (container front side, tubular member)
201k step
202 Body container (front side of container)
203, 303 Cylinder (rear side of container)
206 mobile
211 opening
211a one side
Side 211b
211c opposite side

Claims (5)

Wherein a moving body and a screw engagement portion are provided in a container including a front portion of the container and a rear portion of the container and the screw engagement action of the screw engagement portion functions by relatively rotating the container front portion and the container rear portion, As an extrusion container,
And a cylindrical tubular member,
Wherein the threaded portion includes an arm screw as a ridge extending in a helical shape from an inner peripheral surface of the tubular member,
Wherein an opening portion penetrating the peripheral wall is formed in the peripheral wall of the tubular member,
Wherein the female screw is provided so as to be continuous with the opening,
And one side constituting the edge of the opening as viewed from the side facing the opening is continuous with the female screw and extends along the trajectory drawn by the female screw. The method according to claim 1,
Wherein the opening is provided such that a rear opening surface thereof is connected to a front end surface of the female screw or an inner side surface of the opening is connected to a rear end surface of the female screw. The method according to claim 1 or 2,
And the pair of sides connected to both ends of the one side constituting the edge of the opening when viewed from the side facing the opening extend along the axial direction. The method according to claim 1 or 2,
Wherein an inner peripheral surface of the tubular member is provided with a step portion having a height equal to or greater than the height of the female screw in a circumferential direction at a position corresponding to an opposite side of the opening portion,
Wherein an inner diameter of said tubular member is reduced in diameter through said stepped portion in a direction from said one side to said opposite side. The method according to claim 1 or 2,
Wherein the opening is formed at two places in the tubular member which are rotated by 180 占 in the circumferential direction.

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