JP7329234B2 - Application material extrusion container - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a coating material extrusion container that extrudes a coating material.

Conventionally, various containers for extruding coating material have been known. Japanese Patent Laying-Open No. 2009-039174 discloses a charging member which is a front tube, a main tube connected to the charging member so as to be synchronously rotatable, and an operation tube connected to the rear end of the main tube so as to be relatively rotatable. A coating extrusion container is described. Inside the coating material extruding container, there are provided a moving screw cylinder that is screwed into the operation cylinder through a first screw-engagement portion, and a moving body that is screwed into the movement screw cylinder through a second screw-engagement portion. be done. The operation barrel includes a screw barrel and a tail plug that closes the bore of the screw barrel from behind, and the screw barrel is formed in a stepped cylindrical shape. The tail plug enters the inside of the screw cylinder from the rear.

When the main body tube and the operating tube are rotated relative to each other in the extending direction, the filling member, the moving screw tube and the moving body rotate relative to each other, and the moving screw tube and the screw tube of the operating tube also rotate relative to each other. Along with these relative rotations, the movable screw barrel advances due to the screwing action of the first threaded portion composed of the male thread of the movable screw barrel and the protrusion of the screw barrel. Simultaneously with this forward movement, the moving body advances due to the screwing action of the second threaded portion composed of the female thread of the moving screw cylinder and the male thread of the moving body. The moving body advances together with the moving screw barrel and also advances independently with respect to the moving screw barrel.

JP 2009-039174 A

As described above, the coating material extruding container includes a moving body, a moving screw cylinder having a female screw threadedly engaged with the male screw of the moving body, an operating cylinder provided outside the moving screw cylinder, and a moving screw cylinder and an operating cylinder. A tail plug that enters the cylinder from the rear is provided. By the way, since many parts may be accommodated in the inside of the coating material extrusion container, there is a concern that the container may become enlarged in the radial direction. If the diameter of the coating material extrusion container is enlarged, it may be difficult to hold and usability may be reduced, or the appearance may become large, which may cause problems in terms of design. Therefore, the application material delivery container is required to have a smaller diameter.

An object of the present disclosure is to provide a coating material delivery container that can achieve a reduced diameter.

The coating material extruding container according to the present disclosure is a coating material extruding container that extends in the axial direction and that extrudes the coating material in the axial direction, and has a polygonal frame shape having a plurality of corners in a cross section orthogonal to the axial direction. an outer member, an inner member that enters inside the outer member, a front tube that accommodates the application material and is engaged with the outer member so as to be relatively rotatable, and a screwing action by relative rotation between the front tube and the outer member. a moving body that moves along the axial direction inside the tip tube and the outer member by working, the moving body pushes out the coating material, and the outer member moves the first fitting portion located inside the corner. The inner member has an outer surface facing the inner surface of the outer member, and a second fitting portion provided on the outer surface and fitted to the first fitting portion along the axial direction.

In this coating material extruding container, the outer member having a polygonal frame-like cross section orthogonal to the axial direction has the first fitting portion located inside the corner, and the inner member has the second fitting portion on the outer surface. have a part. The first fitting portion of the outer member and the second fitting portion of the inner member are fitted along the axial direction. Therefore, by providing the first fitting portion axially fitted with the second fitting portion of the inner member inside the corner, the dead space of the inner portion of the corner is eliminated between the outer member and the inner member. It can be effectively used as a space for fitting. As a result, it is possible to suppress the enlargement of the outer member due to the portion where the outer member and the inner member are fitted to each other, so that the diameter of the coating material extrusion container can be reduced.

The first fitting portion has a first protrusion projecting from the inside of the corner, and the second fitting portion has a second protrusion that projects from the outer surface and fits in the first protrusion in the axial direction. may have a part. In this case, the first projecting portion that projects inward from the corner of the outer member and the second projecting portion that projects from the outer surface of the inner member are axially fitted to each other. By fitting the first projecting portion projecting inwardly of the corner with the second projecting portion, it is possible to reduce the portion of the outer member that is thickened. Therefore, since the thickness of the outer member can be made uniform, the occurrence of sink marks on the surface of the outer member can be suppressed.

The first fitting portion includes an inner wall portion including the first projection portion and extending in a direction intersecting the axial direction, and a hole defining the first projection portion and axially penetrating the inner wall portion. , and the second protrusion may be fitted to the first protrusion while being inserted into the hole. In this case, the second projecting portion of the inner member fits in the first projecting portion in the axial direction while being inserted into the hole formed in the inner wall portion of the outer member. The first projecting portion is formed as an inner wall portion of the outer member, and the second projecting portion of the inner member inserted into the hole of the inner wall portion is fitted with the first projecting portion. Therefore, it is possible to suppress the occurrence of sink marks by reducing the thickened portion of the outer member, and to simplify the fitting structure between the first projecting portion and the second projecting portion.

Further, in the above-described coating material extruding container, the moving body has a male screw on the outer circumference and a female screw on the inner circumference to be screwed to the male screw, and the female screw portion formed on the inner surface of the outer member has a screw thread. and a moving screw tube having a threaded projection on its outer periphery, and the inner member may be a tail plug that closes an opening of the outer member that opens on the side opposite to the front tube. In this case, the application material can be extruded by relative rotation between the front tube and the outer member. Further, the tail plug is fitted to the outer member by fitting the first fitting portion located inside the corner of the outer member and the second fitting portion provided on the outer surface of the tail plug along the axial direction. match. Therefore, it is possible to suppress the enlargement of the outer member into which the tail plug enters.

In addition, the female screw portion formed on the inner surface of the outer member and the threaded projection of the moving screw cylinder allow the front cylinder and the outer member to rotate relative to each other in one direction. A ratchet mechanism is configured to restrict the relative rotation of the front cylinder and the outer member, and the application material advances by relatively rotating the front cylinder and the outer member in one direction. In this case, the ratchet mechanism can advance the application material by relative rotation of the front tube and the outer member in one direction, and can restrict relative rotation of the front tube and the outer member in the other direction. .

According to the present disclosure, a reduction in diameter can be achieved.

(a) is a front view of a coating material extrusion container according to an embodiment. (b) is a side view of the coating material extrusion container according to the embodiment. It is a side view which shows the state which removed the cap from the application material extrusion container of FIG.1(b). It is a longitudinal cross-sectional view of the coating material extrusion container of FIG.1(b). FIG. 4 is a vertical cross-sectional view showing a state in which the cap is removed from the coating material extruding container of FIG. 3 and the coating material is fed out to the forward limit; Fig. 1(a) is a cross-sectional view taken along line VV of Fig. 1(a); FIG. 4 is a perspective view showing an outer member of the coating material extrusion container according to the embodiment; Figure 7 is a longitudinal cross-sectional view of the outer member of Figure 6; 8 is an enlarged view of a first protrusion of the outer member of FIG. 7; FIG. FIG. 8 is a front view showing the inner wall and holes of the outer member of FIG. 7; FIG. 4 is a perspective view showing an inner member of the coating material extrusion container according to the embodiment; Figure 11 is a longitudinal cross-sectional view of the inner member of Figure 10; FIG. 12 is an enlarged view of a second protrusion of the inner member of FIG. 11; Figure 12 is a front view of the inner member of Figure 11; 6 is an enlarged cross-sectional view of the first fitting portion of the outer member and the second fitting portion of the inner member in the coating material extruding container of FIG. 5; FIG.

Hereinafter, embodiments of a coating material extrusion container according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and duplicate descriptions are omitted as appropriate.

FIG. 1(a) is a front view of a coating material extrusion container according to the present embodiment. FIG. 1(b) is a side view of the coating material extrusion container according to the present embodiment. FIG. 2 is a side view showing a state in which a cap as a protective member is removed from the application material extruding container of FIG. 1(b). FIG. 3 is a longitudinal sectional view of the coating material extrusion container according to this embodiment.

The application material extrusion container 100 according to the present embodiment is a container that extends in the axial direction D1 and pushes out (delivers) the application material M in the axial direction D1. The term “axis” refers to the centerline of the coating material extrusion container 100 that extends in the longitudinal direction (for example, the longitudinal direction) of the coating material extrusion container 100, and the term “axial direction” refers to the longitudinal direction along the axis. showing. In addition, the delivery direction of the coating material M is forward (forward direction), and the opposite direction is backward (backward direction).

Examples of the coating material M include various rod-shaped cosmetics including lipstick, lip gloss, eyeliner, eyebrow, lip liner, cheek color, concealer, beauty stick, hair color, nail art, etc., or a stationery rod-shaped core. etc. can be used. Furthermore, as the coating material M, it is possible to use a very soft (semi-solid, soft solid, soft, jelly-like, mousse-like, or kneaded material including these) stick-like material. It is also possible to use a thin rod with an outer diameter of 1 mm or less, a rod with an outer diameter of 1 mm or more and 10 mm or less, or a large diameter rod with an outer diameter of 10 mm or more.

As shown in FIGS. 1(a), 1(b) and 2, the coating material extruding container 100 has a rod shape extending in the axial direction D1, and extrudes the coating material in a plane orthogonal to the axial direction D1. The cross-sectional shape when the container 100 is cut is polygonal (for example, square). Since the cross-sectional shape of the coating material push-out container 100 is polygonal in this manner, the operability of the coating material push-out container 100 can be enhanced, and the coating material push-out container 100 can exhibit a high-class appearance.

As shown in FIGS. 2 and 3, the coating material extrusion container 100 includes a front tube 1 having a filling area 1f in which the coating material M is filled, and a front tube 1 into which the front tube 1 is inserted from the front side. an outer member 3 which is an operation cylinder into which the middle cylinder 2 is inserted from the front side and which is connected to the middle cylinder 2 so as to be synchronously rotatable; and an opening 3b at the rear end of the outer member 3. and an inner member 4, which is a breech plug that closes, is provided as an external configuration.

The coating material extruding container 100 includes a moving screw cylinder 5 having a threaded projection 5b on its outer periphery 5c to be screwed into a female threaded portion 3d formed on the inner surface 3c of the outer member 3, and formed on the inner periphery 5d of the moving screw cylinder 5. a moving body 6 having, on its outer periphery, a male screw 6c to be screwed into a female screw 5f, a piston 7 attached to the front end of the moving body 6 and forming the rear end of the filling area 1f; A spring 8 arranged between the screw barrels 5 is further provided.

FIG. 4 is a vertical cross-sectional view showing a state in which the cap 10 is removed from the application material extruding container 100 of FIG. 3 and the moving body 6 is moved to the forward limit. FIG. 5 is a sectional view taken along line VV of FIG. 1(a). As shown in FIGS. 3, 4 and 5, the front tube 1 is a cylindrical member that fills the filling area 1f with the coating material M. It protrudes from the opening 1b. The tip tube 1 is, for example, cylindrical. However, the shape of the tip tube 1 may be a shape other than a cylindrical shape, such as a rectangular tube.

A piston 7 is in close contact with the interior of the front cylinder 1, and the piston 7 may have a function of ensuring airtightness. A piston 7 is attached to the tip of the moving body 6 . The piston 7 is made of, for example, PP (polypropylene), HDPE (high density polyethylene) or LLDPE (linear low density polyethylene). The piston 7 may be molded from a relatively soft material.

The moving body 6 is provided inside the front tube 1 and has, for example, a cylindrical shape. The moving body 6 includes a flange portion 6b provided on the front side and a male screw 6c provided on the rear side of the flange portion 6b. The male screw 6c is formed on the outer surface of the moving body 6, and is provided from the rear side of the collar portion 6b to the rear end of the moving body 6. As shown in FIG. The male screw 6c constitutes one side of a second threaded portion T2, which will be described later.

The moving body 6 has ridges 6d extending in the axial direction D1 on the inner surface thereof. For example, a plurality of (six as an example) ridges 6d are arranged along the circumferential direction. The ridge 6d engages in the rotational direction (around the axis) with the inner member 4 that constitutes the tail plug of the application material pushing container 100, so that the moving body 6 can rotate synchronously with the inner member 4 and move in the axial direction. is attached to the

The moving screw barrel 5 is inserted into the front barrel 1 from the rear side and is engaged with the inner surface of the front barrel 1 in the rotational direction. A female screw 5f that constitutes the other side of the second threaded portion T2 is formed on the inner surface of the movable screw cylinder 5. As shown in FIG. The female screw 5 f is provided on the front side of the inner surface of the movable screw cylinder 5 . The moving screw cylinder 5 has a flange portion 5g and a threaded projection 5b located on the rear side of the flange portion 5g. configure.

The collar portion 5g is located rearward of the front barrel 1, and a spring 8 is provided between the rear end 1c of the front barrel 1 and the collar portion 5g. The spring 8 is wound around the movable screw cylinder 5, and one end of the spring 8 contacts the rear end 1c and the other end of the spring 8 contacts the front surface of the collar portion 5g. A first threaded portion T1 constituted by the threaded protrusion 5b and the female thread portion 3d of the outer member 3 is, for example, a ratchet mechanism. Therefore, relative rotation of the outer member 3 and the movable screw cylinder 5 in one direction is permitted, and relative rotation of the outer member 3 and the movable screw cylinder 5 in the other direction (direction opposite to the one direction) is restricted. be.

The front cylinder 1 has a step 1d near the center in the axial direction D1. The rear side of the stepped portion 1d of the front cylinder 1 is an insertion portion that is inserted into the middle cylinder 2 from the front side. The front cylinder 1 is engaged with the middle cylinder 2 in the axial direction D1 by inserting the rear side of the step 1d into the middle cylinder 2 so as to be relatively rotatable. The middle tube 2 has a collar portion 2b that enters the front end of the outer member 3. As shown in FIG. The middle cylinder 2 engages with the outer member 3 in the rotational direction, and at this time, the collar portion 2b is fitted into the step 3f formed at the front end of the inner surface 3c of the outer member 3. As shown in FIG.

6 is a perspective view of the outer member 3. FIG. 7 is a longitudinal sectional view of the outer member 3. FIG. As shown in FIGS. 6 and 7, the outer member 3 has a rectangular parallelepiped shape extending in the axial direction D1. The outer member 3 is made of ABS (Acrylonitrile Butadiene Styrene) resin, for example.

The outer member 3 has a first opening 3b at one end in the axial direction D1 and a second opening 3g at the other end in the axial direction D1. For example, the thickness of the outer member 3 is constant along the axial direction D1, and more specifically, is constant at locations other than the front end portion 3h and the first projecting portion 3j, which will be described later. Since the thickness of the outer member 3 is constant along the axial direction D1 in this way, the occurrence of sink marks in the outer member 3 is suppressed.

The outer member 3 has a front end 3h into which the middle tube 2 is inserted. The front end portion 3h includes the step 3f described above and a recess 3k provided behind the step 3f. The recess 3k is provided for mounting the middle tube 2 on the outer member 3 so as to be synchronously rotatable and axially immovable. That is, as shown in FIG. 3, the flange 2b of the middle cylinder 2 is fitted into the step 3f of the outer member 3, and the projection 2c is engaged with the recess 3k, so that the outer member 3 is placed on the middle cylinder. 2 are mounted so as to be synchronously rotatable.

As shown in FIGS. 6 and 7, the outer member 3 has a tubular portion 3p extending in a direction intersecting the axial direction D1, and a first projecting portion 3j projecting from an inner surface 3c of the outer member 3. . The cylindrical portion 3p and the first projecting portion 3j are provided near the center of the outer member 3 in the axial direction D1. The cylindrical portion 3p has, for example, a cylindrical shape extending forward from the first protruding portion 3j.

The cylindrical portion 3p has a cylindrical side wall portion 3q that extends along the inner surface 3c of the outer member 3, and the inner surface 3r of the side wall portion 3q has a female thread portion 3d that constitutes the aforementioned first threaded portion T1. is formed. The female threaded portion 3d includes, for example, a plurality of ratchet teeth 3s protruding from the inner surface 3r, and the ratchet mechanism (first threaded portion T1) is formed by the ratchet teeth 3s and the threaded projections 5b of the moving screw cylinder 5. is configured. Further, the thickness of the tubular portion 3p is constant along the axial direction D1, thereby suppressing the occurrence of sink marks in the tubular portion 3p.

As shown in FIGS. 7 and 8, the side wall portion 3q of the tubular portion 3p is separated from the inner surface 3c of the outer member 3, and a space 3y is formed between the side wall portion 3q and the inner surface 3c. . The space 3y is an annular internal space surrounding the tubular portion 3p in the outer member 3 in the circumferential direction. The width of the space 3y extending along the axial direction D1 is, for example, substantially constant.

FIG. 9 is a front view of the outer member 3 as seen from the axial direction D1 (rear side, that is, the opening 3b side). As shown in FIGS. 7 and 9, the outer member 3 has a rectangular frame shape (as an example, a square frame shape) having four corners 3t in a cross section perpendicular to the axial direction D1. It has a first fitting portion 3v located inside. The inside of the corner 3t is, for example, a dead space, and in this embodiment, space saving is realized by making the inside of the corner 3t, which is the dead space, the first fitting portion 3v. It is

The first fitting portion 3v defines an inner wall portion 3w that includes the first projecting portion 3j described above and extends in a direction intersecting the axial direction D1, and defines the first projecting portion 3j and extends the inner wall portion 3w in the axial direction. and a hole portion 3x passing through D1. The inner wall portion 3w is a portion including a first projecting portion 3j projecting from the inner surface 3c of the outer member 3 and a tubular portion 3p. ing.

The hole portion 3x is provided inside each corner portion 3t of the outer member 3, and as shown in FIGS. It is a part to be fitted along. By inserting the inner member 4 into each hole 3x provided inside each corner 3t of the outer member 3 and fitting the inner member 4 to each first projecting portion 3j, The member 4 is fitted along the axial direction D1. The configuration of the inner member 4 will be detailed later.

10 is a perspective view showing the inner member 4. FIG. 11 is a longitudinal sectional view of the inner member 4. FIG. As shown in FIGS. 10 and 11, the inner member 4 is positioned at one end in the axial direction D1 and has a polygonal (for example, square) bottom 4b that closes the opening 3b of the outer member 3. It has a side surface portion 4c extending in the axial direction D1 from each side, and a shaft body 4d that protrudes from each side surface portion 4c between the plurality of side surface portions 4c.

A cross section of the shaft 4d taken along a plane perpendicular to the axial direction D1 is non-circular. The shaft 4d has, for example, a plurality of ridges 4f protruding from the outer surface of the column, and each ridge 4f extends along the axial direction D1. As an example, six ridges 4f are arranged at equal intervals along the circumferential direction on the shaft 4d. The shaft 4d is inserted inside the moving body 6 from behind, and each projection 4f enters between a pair of projections 6d (see FIG. 4) of the moving body 6 and engages in the rotational direction. Thereby, the inner member 4 is mounted on the moving body 6 so as to be synchronously rotatable.

The bottom portion 4b has, for example, a rectangular plate shape. A concave portion 4g recessed inside the inner member 4 is formed between the bottom portion 4b and each side portion 4c. Each recess 4g is recessed in a V shape from each corner 4h of the inner member 4, for example. The corner portion 4h of the inner member 4, for example, extends linearly along the axial direction D1 from the bottom portion 4b.

The side surface portion 4c has, for example, a rectangular plate shape with each corner portion 4h as a long side. The side portion 4c has a convex portion 4j extending in the axial direction D1 at the center of the side portion 4c, and the convex portion 4j protrudes from the outer surface 4k of the side portion 4c. The convex portion 4j is provided, for example, for reinforcement. Further, the side surface portion 4c has a second fitting portion 4m provided on the outer surface 4k and fitted to the first fitting portion 3v of the outer member 3 along the axial direction D1.

The second fitting portion 4m has an arm portion 4p protruding in the axial direction D1 together with each corner portion 4h, and a second protruding portion 4q protruding to the outside of the inner member 4 from each arm portion 4p. A slit 4s extending in the axial direction D1 is formed between the front end 4r at the center of the side portion 4c in the width direction D2 and each arm portion 4p, and the slit 4s enhances the flexibility of the arm portion 4p. .

FIG. 12 shows an enlarged view of the arm portion 4p and the second projecting portion 4q. FIG. 13 is a front view of the inner member 4 as seen from the front side. As shown in FIGS. 12 and 13, the arm portion 4p has a triangular tip 4t, a first surface 4v extending rearward from the tip 4t, and a second surface 4w extending rearward from the second projecting portion 4q. and The second protrusion 4q is provided between the first surface 4v and the second surface 4w.

The shape of the second projecting portion 4q seen from the front side is, for example, a shape extending along the adjacent side and the opposite side of the right triangle of the tip 4t, that is, a shape covering the corners (for example, rounded corners) of the tip 4t. ing. The second protruding portion 4q protrudes in both the first direction D3 and the second direction D4 on the arm portion 4p. The second protruding portion 4q includes an inclined surface 4x that inclines backward from the first surface 4v, a top surface 4y that extends in the axial direction D1 at the rear end of the inclined surface 4x, and an inclined surface 4x of the top surface 4y. and an upright surface 4z extending from the opposite end to the second surface 4w.

For example, the height of the first surface 4v is higher than the height of the second surface 4w. That is, the thickness A1 of the portion of the first surface 4v in the arm portion 4p is thicker than the thickness A2 of the portion of the surface 4w. Therefore, since the arm portion 4p is thicker on the tip side, it is possible to increase the strength of the portion including the tip 4t of the arm portion 4p.

The inner member 4 configured as described above engages with the outer member 3 along the axial direction D1, as shown in FIGS. 5 and 14, for example. Specifically, the second protruding portion 4q of the inner member 4 passes through the hole 3x of the outer member 3 forward, the inclined surface 4x and the top surface 4y overcome the first protruding portion 3j, and the erected surface 4z becomes the first protruding portion. By facing the portion 3j in the axial direction D1, the second fitting portion 4m of the inner member 4 fits into the first fitting portion 3v of the outer member 3 along the axial direction D1.

Next, an example of how to use the coating material extrusion container 100 will be described with reference to FIGS. 3 and 4. FIG. First, in the coating material extruding container 100 in the initial state shown in FIG. When the cap 10 is removed by the user and the front tube 1 and the outer member 3 are relatively rotated in one direction, the front tube 1, the moving screw tube 5, and the moving body 6 rotate relatively, and the moving screw tube moves. 5 and the outer member 3 rotate relative to each other.

At this time, the first threaded portion T1 formed by the threaded protrusion 5b of the movable screw tube 5 and the female threaded portion 3d of the outer member 3 works to engage the movable screw tube 5 with respect to the outer member 3. Advance. At the same time, the second threaded portion T2 formed by the female thread 5f of the moving screw tube 5 and the male thread 6c of the moving body 6 works so that the moving body 6 moves forward with respect to the moving screw tube 5. do. The moving body 6 advances together with the moving screw tube 5 and also advances independently from the moving screw tube 5 .

As the moving body 6 moves forward, the piston 7 pushes out the coating material M, and the coating material M emerges from the opening 1b, and the coating material M is ready for use. When the front barrel 1 and the outer member 3 continue to rotate relative to each other in one direction, the first screw portion T1 is disengaged and the movable screw barrel 5 reaches its forward limit. At this time, the movable screw cylinder 5 is urged rearward by the elastic force of the spring 8 . Then, when the front tube 1 and the outer member 3 continue to rotate relative to each other in one direction, only the screwing action of the second screwing portion T2 works and only the moving body 6 advances.

On the other hand, when the front tube 1 and the outer member 3 are relatively rotated in the other direction (opposite direction to the above one direction), the relative rotation is restricted by the first threaded portion T1, which is a ratchet mechanism. Specifically, the threaded protrusions 5b of the movable screw cylinder 5 come into contact with the ratchet teeth 3s of the female screw portion 3d of the outer member 3 in the rotational direction, and the relative rotation of the movable screw cylinder 5 with respect to the outer member 3 is restricted.

As described above, in the coating material extrusion container 100, as shown in FIGS. 9, 10 and 14, the outer member 3 having a rectangular frame-like cross section orthogonal to the axial direction D1 is positioned inside the corner 3t. It has one fitting portion 3v and the inner member 4 has a second fitting portion 4m on the outer surface 4k. The first fitting portion 3v of the outer member 3 and the second fitting portion 4m of the inner member 4 are fitted along the axial direction D1.

Therefore, the first fitting portion 3v that fits in the axial direction D1 with the second fitting portion 4m of the inner member 4 is provided inside the corner portion 3t, so that the dead space inside the corner portion 3t is replaced by the outer member. 3 and the inner member 4 can be effectively used as a space for fitting to each other. As a result, it is possible to suppress the enlargement of the outer member 3 due to the portion where the outer member 3 and the inner member 4 are fitted to each other, so that the diameter of the coating material extrusion container 100 can be reduced.

Further, in the present embodiment, the first fitting portion 3v has a first protrusion 3j that protrudes from the inside of the corner 3t, and the second fitting portion 4m protrudes from the outer surface 4k and the first protrusion 3j and a second projecting portion 4q fitted in the axial direction D1. Therefore, the first protruding portion 3j protruding inward from the corner portion 3t of the outer member 3 and the second protruding portion 4q protruding from the outer surface 4k of the inner member 4 are fitted together in the axial direction D1.

By fitting the first projecting portion 3j projecting inwardly of the corner portion 3t with the second projecting portion 4q, the portion of the outer member 3 that is thick can be reduced. Therefore, since the thickness of the outer member 3 can be made uniform, the occurrence of sink marks on the surface of the outer member 3 can be suppressed.

In the present embodiment, the first fitting portion 3v defines an inner wall portion 3w that includes the first projecting portion 3j and extends in a direction intersecting the axial direction D1, and an inner wall portion 3w that defines the first projecting portion 3j. A hole portion 3x penetrates the portion 3w in the axial direction D1, and the second protrusion portion 4q is fitted to the first protrusion portion 3j while being inserted into the hole portion 3x.

Therefore, the second projecting portion 4q of the inner member 4 fits into the hole 3x formed in the inner wall portion 3w of the outer member 3 in the axial direction D1 with the first projecting portion 3j. The first projecting portion 3j is formed as the inner wall portion 3w of the outer member 3, and the second projecting portion 4q of the inner member 4 inserted into the hole portion 3x of the inner wall portion 3w is fitted with the first projecting portion 3j. Therefore, it is possible to suppress the occurrence of sink marks by reducing the portion of the outer member 3 where the thickness is increased, and it is possible to simplify the fitting structure between the first projecting portion 3j and the second projecting portion 4q. .

5 and 14, the coating material extruding container 100 according to the present embodiment includes a front tube 1 that accommodates the coating material M and is engaged with the outer member 3 so as to be relatively rotatable; In the interior of the cylinder 1 and the outer member 3, it moves along the axial direction D1 due to the relative rotation between the front cylinder 1 and the outer member 3, and pushes out the coating material M. a moving screw cylinder 5 having, on its inner periphery, a female screw 5f to be screwed into the outer member 3, and having, on its outer periphery 5c, a threaded projection 5b to be screwed into the female screw portion 3d formed on the inner surface 3c of the outer member 3. .

The inner member 4 is a tail plug that closes the opening 3b of the outer member 3 that opens on the side opposite to the front tube 1. As shown in FIG. Therefore, the coating material M can be extruded by the relative rotation between the front tube 1 and the outer member 3 . Further, the first fitting portion 3v located inside the corner portion 3t of the outer member 3 and the second fitting portion 4m provided on the outer surface 4k of the tail plug fit together along the axial direction D1, thereby An inner member 4 which is a tail plug is fitted to the member 3 . Therefore, it is possible to suppress the enlargement of the outer member 3 into which the tail plug enters.

Further, in the present embodiment, the female screw portion 3d formed on the inner surface 3c of the outer member 3 and the threaded projection 5b of the moving screw tube 5 prevent relative rotation of the front tube 1 and the outer member 3 in one direction. By constructing a ratchet mechanism that allows relative rotation in one direction and restricts relative rotation in the other direction opposite to one direction, the coating material M advances by relatively rotating the front tube 1 and the outer member 3 in one direction. Therefore, the ratchet mechanism allows the application material M to advance by the relative rotation of the front tube 1 and the outer member 3 in one direction, and restricts the relative rotation of the front tube 1 and the outer member 3 in the other direction. can do.

The embodiments of the coating material extrusion container according to the present disclosure have been described above. However, the application material extrusion container according to the present disclosure is not limited to the above-described embodiments, and may be modified or applied to other things within the scope of not changing the gist described in each claim. good. That is, the configuration (shape, size, material, number, and layout) of each component constituting the coating material extrusion container can be changed as appropriate without changing the above-described gist.

For example, in the above-described embodiment, an example in which the cross section perpendicular to the axial direction D1 includes the rectangular frame-shaped outer member 3 having four corners 3t has been described. However, as long as the outer member has a polygonal frame-like cross section perpendicular to the axial direction D1, the cross-sectional shape of the outer member may be triangular, pentagonal, hexagonal, octagonal, or the like, and can be changed as appropriate. is.

Further, in the above-described embodiment, an example in which the first threaded portion T1 constitutes a ratchet mechanism has been described. However, the first threaded portion T1 may be a mechanism other than the ratchet mechanism, and may allow relative rotation in other directions. In this case, for example, the coating material M can be retracted by relatively rotating the front tube 1 and the outer member 3 in the other direction. Further, the coating material push-out container 100 may be provided with, for example, a click mechanism that imparts a click feeling to the user during relative rotation instead of the ratchet mechanism described above.

Further, in the above-described embodiment, the coating material extrusion container 100 including the outer member 3 that engages with the tip tube 1 so as to be relatively rotatable and the inner member 4 that functions as a tail plug has been exemplified. However, the manner and function of engagement between the outer member and the inner member are not limited to the above examples and can be changed as appropriate. That is, as long as the application material extruding container includes an outer member and an inner member, and the outer member is provided outside the inner member, the functions of the outer member and the inner member can be changed as appropriate.

Further, in the above-described embodiment, the first fitting portion 3v of the outer member 3 has the first projection 3j, the second fitting portion 4m of the inner member 4 has the second projection 4q, and the first projection An example in which the 3j and the second projecting portion 4q are fitted in the axial direction D1 has been described. However, the shape, size, number and arrangement of the first fitting portion of the outer member and the second fitting portion of the inner member are not limited to the above examples and can be changed as appropriate.

Further, as in the above-described embodiments, the coating material M includes lip gloss, lipstick, eye color, eyeliner, serum, cleaning liquid, nail enamel, nail care solution, nail remover, mascara, hair color, hair cosmetic, Oral care, massage oil, keratotic plug loosening liquid, foundation, concealer, skin cream, or ink for writing utensils such as marking pens, liquid pharmaceuticals, or liquid application materials including mud It is also possible to apply these coating materials to the coating material extruding container according to the present disclosure.

Further, in the above-described embodiment, the application material pushing container 100 including the first threaded portion T1 and the second threaded portion T2 is illustrated. However, the number of threaded portions provided in the coating material push-out container may be one or three or more, and the coating material push-out container may have no threaded portion. As described above, the configuration of each part of the coating material extrusion container can be changed as appropriate.

REFERENCE SIGNS LIST 1 front tube 1b opening 1c rear end 1d step 1f filling area 2 middle tube 2b flange 2c projection 3 outer member 3b opening 3c Inner surface 3d Female screw portion 3f Step 3g Opening 3h Front end 3j First protrusion 3k Recess 3p Cylindrical portion 3q Side wall 3r Inner surface 3s Ratchet teeth 3t corner portion 3v first fitting portion 3w inner wall portion 3x hole portion 3y space 4 inner member 4b bottom portion 4c side portion 4d shaft 4f ridge 4g concave portion 4h corner portion 4j convex portion 4k outer surface 4m second fitting portion 4p arm portion 4q second projecting portion 4r front end 4s slit 4t... tip, 4v, 4w... surface, 4x... sloped surface, 4y... top surface, 4z... standing surface, 5... moving screw cylinder, 5b... threaded projection, 5c... outer periphery, 5d... inner periphery, 5f... female screw, 5g... flange, 6... moving body, 6b... flange, 6c... male screw, 6d... rib, 7... piston, 8... spring, 10... cap, 100... coating material extruding container, D1... axial direction , D2... width direction, D3, D4... direction, M... coating material, T1... first threaded portion, T2... second threaded portion.

Claims (5)

A coating material extruding container that extends in the axial direction and extrudes the coating material in the axial direction,
an outer member having a polygonal frame shape with a cross section orthogonal to the axial direction and having a plurality of corners;
an inner member that fits inside the outer member;
a front tube that accommodates the coating material and is engaged with the outer member so as to be relatively rotatable;
a moving body that moves along the axial direction inside the front tube and the outer member by a screwing action caused by relative rotation between the front tube and the outer member;
with
the moving body pushes out the coating material,
The outer member has a first fitting portion located inside the corner,
The inner member has an outer surface facing the inner surface of the outer member, and a second fitting portion provided on the outer surface and fitted with the first fitting portion along the axial direction,
Application material extrusion container. The first fitting portion has a first projecting portion projecting from the inside of the corner,
The second fitting portion has a second protrusion that protrudes from the outer surface and fits with the first protrusion in the axial direction,
The coating material extrusion container according to claim 1. The first fitting portion includes an inner wall portion that includes the first projecting portion and extends in a direction intersecting the axial direction, and an inner wall portion that defines the first projecting portion and penetrates the inner wall portion in the axial direction. and a hole for
The second projecting portion is fitted to the first projecting portion in a state of entering the hole,
The coating material extrusion container according to claim 2. The moving body has a male screw on its outer periphery,
a moving screw cylinder having, on its inner circumference, a female screw that engages with the male screw, and having, on its outer circumference, a threaded projection that engages with a female screw portion formed on the inner surface of the outer member;
further comprising
The inner member is a tail plug that closes an opening of the outer member that opens on the opposite side of the front cylinder,
The coating material extrusion container according to any one of claims 1 to 3. The female threaded portion formed on the inner surface of the outer member and the threaded projection of the moving threaded tube are
configuring a ratchet mechanism that allows relative rotation of the tip cylinder and the outer member in one direction and restricts relative rotation in the other direction that is opposite to the one direction;
The application material advances by relatively rotating the tip tube and the outer member in the one direction.
The coating material extrusion container according to claim 4.

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