JP2016145073A - Spouting cap and container having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spouting cap which cannot be removed even if it is rotated in a loosening direction of a screw after being screwed to a container body.SOLUTION: A spouting cap 1 comprises: a base 2 having a cylindrical wall 2a surrounding a mouth part 8a of a container body 7 with a gap therebetween; an inside plug 3 covering an opening of the mouth part 8a; and a non-return valve 5 for opening and closing a through hole 3h. The inside plug 3 comprises: an inner peripheral wall 3a which is connected to a top wall 3g and positioned between the mouth part 8a and the cylindrical wall 2a; a female screw part 3f which is provided on an inner surface of the inner peripheral wall 3a and linked to a male screw part 8b provided in the mouth part 8a; and a first claw part 3b provided on an outer surface of the inner peripheral wall 3a. The base 2 comprises a second claw part 2b which is provided on an inner surface of the cylindrical wall 2a, engages with the first claw part 3b and fastens the female screw part 3f to the male screw part 8b by the rotation in one direction around a central axis line C, and is turned idly with respect to the inner peripheral wall 3a by the rotation in the other direction around the central axis line C.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pouring cap for pouring out the contents stored in a container body, and a container having the pouring cap attached to the container body.

  As a pouring cap that is attached to a container body and pours out contents, a cap incorporating a check valve is known (for example, see Patent Document 1). According to such a pouring cap, since the introduction of outside air into the container body can be prevented, the freshness of the contents can be maintained by suppressing the contact between the contents and the air.

JP 2011-31921 A

  By the way, such a pouring cap is screwed to the mouth of the container main body, and can be removed from the container main body by rotating the screw in a loosening direction, so that the contents may be refilled. There is. In this case, if the contents which are not planned are filled or used repeatedly, there is a concern that the contents may be scattered at the time of dispensing, or the storage performance may be deteriorated.

  An object of the present invention is to solve such a problem, and after being screwed to the container body, the contents of the contents can be removed by turning the screw in a loosening direction. The object is to provide a new dispensing cap that prevents refilling.

The present invention has a cylindrical wall that surrounds the mouth of the container body with a space therebetween, and a top wall connected to the cylindrical wall has a base formed with an outlet for the contents accommodated in the container body; An inner plug that covers the opening of the mouth and has a through-hole, and is arranged so as to be rotatable about the central axis of the cylindrical wall inside the base; the top wall and the ceiling wall; A check valve disposed between and for opening and closing the through hole,
The inner plug is connected to the top wall and has an inner peripheral wall located between the mouth portion and the cylindrical wall, and an internal thread portion provided on an inner surface of the inner peripheral wall and linked to an external thread portion provided in the mouth portion. And a first claw portion provided on the outer surface of the inner peripheral wall,
The base is provided on the inner surface of the cylindrical wall, and is engaged with the first claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, while around the central axis. It is an extraction cap provided with the 2nd nail | claw part which idles with respect to this inner peripheral wall by rotation of another direction.

  The top wall and the inner peripheral wall of the inner plug may be provided integrally with each other, or may be provided separately.

  One of the first claw portion and the second claw portion is preferably formed as a bend portion having a cantilever shape that can be elastically deformed.

A base wall having a cylindrical wall surrounding the mouth portion of the container body with a space therebetween, and a base wall formed on the top wall connected to the tubular wall and having an outlet for contents contained in the container body, An inner plug that covers the opening and has a through-hole, and is disposed between the top wall and the top wall, and an inner plug that is rotatably arranged around the central axis of the cylindrical wall inside the base And a check valve that opens and closes the through hole,
The inner plug is connected to the top wall and has an inner peripheral wall located between the mouth portion and the cylindrical wall, and an internal thread portion provided on an inner surface of the inner peripheral wall and linked to an external thread portion provided in the mouth portion. And a third claw portion provided on the upper surface of the inner peripheral wall,
The base is provided on the lower surface of the top wall, and is engaged with the third claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, It is preferable that a fourth claw portion that idles with respect to the inner peripheral wall is provided for rotation in the other direction.

  The top wall and the inner peripheral wall of the inner plug may be provided integrally with each other, or may be provided separately.

  One of the third claw portion and the fourth claw portion is preferably formed as a bend portion having an elastically deformable cantilever shape.

  The check valve is preferably held against rotation with respect to the inner plug.

  The check valve has a base portion that supports the valve body that covers the through hole via an elastic piece, and a base concave portion or a base convex portion that is provided in the base portion, and the inner plug includes the base concave portion or It is preferable to have an inner plug convex portion or an inner plug concave portion that engages with the base convex portion and holds the check valve in a detent state.

A cylinder wall surrounding the mouth of the container body, and a top wall connected to the cylinder wall covering a base formed with an outlet for contents contained in the container body, and covering the opening of the mouth An inner plug disposed inside the base, the check valve disposed between the top wall and the top wall to open and close the through hole, and the cylindrical wall And a ring body arranged so as to be rotatable around the central axis of the cylindrical wall,
The base includes an internal thread portion provided on an inner surface of the cylindrical wall and linked to an external thread portion provided in the mouth portion, and a fifth claw portion provided on an outer surface of the cylindrical wall,
The ring body is provided on the inner surface of the ring body, and engages with the third claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, while around the central axis. It is preferable that a sixth claw portion that idles with respect to the cylindrical wall is provided for rotation in the other direction.

  In a container in which such a dispensing cap is mounted on the container body, the container body includes the outer layer body having an outside air introduction hole and the contents provided and accommodated inside the outer layer body. It is preferable that the outer layer body includes an inner layer body that takes in air between the outer air introduction hole and deforms by volume reduction.

  The pouring cap of the present invention includes a base, an inner stopper, and a check valve.In the inner peripheral wall provided on the inner stopper, an internal thread portion linked to an external thread portion provided on the mouth portion is provided on the inner surface of the dispensing cap. The first claw portion is provided on the outer surface thereof, and the second claw portion is provided on the inner surface of the cylindrical wall provided on the base. The second claw portion can be engaged with the first claw portion by rotating the base in one direction around the central axis, so that the female screw portion can be fastened to the male screw portion. Can be installed. On the other hand, rotation in the other direction around the central axis (the direction opposite to one direction) causes the base to idle with respect to the inner peripheral wall, and the pouring cap cannot be removed. Can be prevented.

  By forming one of the first claw part and the second claw part as a bend part having a cantilever shape that can be elastically deformed, the base can be more reliably secured to the inner peripheral wall during the rotation in the other direction. Since it can be idled, refilling of the contents can be prevented more reliably.

  Further, the dispensing cap of the present invention comprises a base, an inner stopper, and a check valve, and has an internal thread linked to the inner thread provided on the inner surface of the inner peripheral wall provided on the inner stopper. In addition, a third claw portion may be provided on the upper surface, and a fourth claw portion may be provided on the lower surface of the top wall provided on the base. Also in this case, by rotating the base in one direction around the central axis, the fourth claw portion can be engaged with the third claw portion and the female screw portion can be tightened to the male screw portion. When rotating in the direction, the base idles with respect to the inner peripheral wall. Accordingly, even with such a configuration, the removal of the dispensing cap is prevented, so that refilling of the contents can be prevented.

  By forming one of the third claw portion and the fourth claw portion as a bend portion having a cantilever shape that can be elastically deformed, the base is more reliably secured to the inner peripheral wall during the rotation in the other direction. Since it can be idled, refilling of the contents can be prevented more reliably.

  When the base idles with respect to the inner peripheral wall of the inner plug, if the check valve rotates together with the base, the function of the check valve may be impaired. For this reason, the function of the check valve can be maintained by providing the check valve with a detent for the inner plug.

  The check valve has a base part that supports the valve body covering the through hole via an elastic piece, and a base concave part or base convex part provided in the base part. By providing the engaging plug convex portion or the engaging plug concave portion, the detent mechanism can be realized with a simple configuration.

  Further, the pouring cap of the present invention comprises a base, an inner plug, a check valve, and a ring body, and on the inner surface of the cylindrical wall provided on the base, on the male thread provided on the mouth. While providing the internal thread part to link, you may provide a 5th nail | claw part in the outer surface, and also provide a 6th nail | claw part in the inner surface of a ring body. In this case, by rotating the ring body in one direction around the central axis, the sixth claw portion can engage with the fifth claw portion and the female screw portion can be tightened to the male screw portion, In rotation in the other direction, the ring body idles with respect to the cylindrical wall. Accordingly, even with such a configuration, the removal of the dispensing cap is prevented, so that refilling of the contents can be prevented. Furthermore, according to such a configuration, the function of the check valve is not impaired because the base and the inner plug are not rotated even when the ring body is idled.

  As a container main body to which such a pouring cap is attached, air is provided between the outer layer body having the outside air introduction hole and the outer layer body from the outside air introduction hole as the contents provided inside the outer layer body are poured out. By adopting an inner layer body that takes in and reduces the volume, contact between the contents and the outside air can be more reliably prevented.

It is sectional drawing of the side view which shows one Embodiment of the extraction | pouring cap according to this invention in the state with which the container main body was mounted | worn. It is sectional drawing which follows AA shown in FIG. It is an enlarged view in the base periphery vicinity of the check valve shown in FIG. It is sectional drawing of the side view shown in the state with which the modification of the extraction | pouring cap shown in FIG. 1 was mounted | worn with the container main body. It is sectional drawing which follows BB shown in FIG. It is sectional drawing of the side view shown in the state with which the other modification of the extraction | pouring cap shown in FIG. 1 was mounted | worn with the container main body. It is sectional drawing in alignment with CC of FIG. 6, (a) shows the state in the case of rotating a base clockwise, (b) shows the state in the case of rotating a base counterclockwise. It is sectional drawing in the side view which shows other embodiment of the extraction | pouring cap according to this invention in the state with which the container main body was mounted | worn. It is sectional drawing which follows DD shown in FIG.

  Hereinafter, the present invention will be described more specifically with reference to the drawings. In FIG. 1, the code | symbol 1 shows one Embodiment of the extraction | pouring cap according to this invention. The dispensing cap 1 of the present embodiment includes a base 2, an inner plug 3, a moving valve body 4, a check valve 5, and a lid body 6.

  The base 2 has a cylindrical shape and includes a cylindrical wall 2a that surrounds a mouth portion of a container main body, which will be described later, with a space therebetween. As shown in FIGS. 1 and 2, a second claw portion 2b that engages with a first claw portion described later is provided on the inner surface of the cylindrical wall 2a. As shown in FIG. 2, the second claw portion 2b has a clockwise end 2c extending in the radial direction around the central axis C of the cylindrical wall 2a, and the counterclockwise end 2d has a central axis C. It is inclined to approach the tangent of the center circle. As shown in FIG. 2, a plurality of second claw portions 2b are provided at intervals in the circumferential direction (two in the opposite position in the present embodiment), and the first claw portions 2b are arranged between the first claw portions 2b. A step portion 2e that engages with the claw portion at the lower side is formed. Further, as shown in FIG. 1, an inclined surface 2f is provided below the second claw portion 2b. The inclined surface 2f is inclined outward in the radial direction.

  A top wall 2g is integrally connected to an upper portion of the cylindrical wall 2a. At the center of the top wall 2g, a hole (content outlet) 2h penetrating in the vertical direction is provided, and an extraction cylinder 2i is provided surrounding the outlet 2h. The top of the dispensing tube 2i is expanded radially outward to form a lip. In addition, a hole (vent hole) 2j is provided on the outer peripheral portion of the top wall 2g. An annular rib 2k protruding downward is provided on the lower surface of the top wall 2g.

  An inner plug 3 is attached to the inside of the base 2. The inner plug 3 includes an inner peripheral wall 3a that extends along the inner surface of the cylindrical wall 2a. A first claw portion 3b is provided on the outer surface of the inner peripheral wall 3a. The first claw portion 3b has a counterclockwise end 3c extending in a radial direction centered on the central axis C, and the clockwise end 3d is directed toward a tangent of a circle centered on the central axis C. It is inclined. As shown in FIG. 2, a plurality of first claw portions 3b are provided at intervals in the circumferential direction (two in the opposite position in the present embodiment). The first claw portion 3b is close to or in contact with the inner surface of the opposed cylindrical wall 2a, and the second claw portion 2b is close to or in contact with the outer surface of the opposed inner peripheral wall 3a. Can rotate with respect to the inner plug 3 about the central axis C. Moreover, the 1st nail | claw part 3b is engaged below by the step part 2e, as shown in FIG. And the inclined surface 3e which inclines in radial direction toward upper direction is provided in the upper end of the 1st nail | claw part 3b, as shown in FIG. An internal thread portion 3f is provided on the inner surface of the inner peripheral wall 3a.

  A top wall 3g is provided on the upper part of the inner peripheral wall 3a. A through hole 3h is provided at the center of the top wall 3g. Further, a cylindrical wall 3i penetrating vertically is provided on the outer side in the radial direction of the through hole 3h, and an inclined portion 3j that decreases in diameter downward is provided at the lower portion of the cylindrical wall 3i. Furthermore, a concave portion 3k having an annular shape opened upward is provided on the radially outer side of the cylindrical wall 3i. Here, as shown in FIG. 3, a convex portion (inner plug convex portion) 3m is provided on the inner side surface of the concave portion 3k facing inward in the radial direction. Further, an annular wall 3n that rises upward is provided on the outer side in the radial direction of the recess 3k, and a groove 3p that partially cuts off the annular wall 3n is provided on the upper portion of the annular wall 3n. Further, a hole (communication port) 3q penetrating the top wall 3g is provided on the radially outer side of the annular wall 3n.

  Inside the cylindrical wall 3i, a movable valve element 4 is disposed that can move in the axial direction of the cylindrical wall 3i. Although the moving valve body 4 of this embodiment is a spherical body, various shapes can be applied as long as it matches the shape of the inner peripheral surface of the cylindrical wall 3i. In this embodiment, a cylindrical body or an ellipsoid may be used in addition to the spherical body.

  A check valve 5 is provided between the top wall 2g and the top wall 3g. The check valve 5 has an annular base portion 5a, and a disc-like valve body 5c is integrally provided via one or more elastic pieces 5b provided inside the base portion 5a. Further, as shown in FIG. 3, a concave portion (base concave portion) 5d into which the inner plug convex portion 3m is fitted is provided on the lower outer surface of the base portion 5a. The check valve 5 of the present embodiment has a so-called three-point valve configuration in which the valve body 5c is held by three elastic pieces 5b. In addition to the three-point valve, a one-point valve, a two-point valve, or the like can be used. In addition, the formation position of 5 d of base recessed parts and the plug stopper convex part 3m can be changed suitably.

  When the inner plug 3, the movable valve body 4, and the check valve 5 are assembled to the base 2, the check valve 5 fits the lower part of the base part 5a into the concave part 3k and the upper part of the base part 5a to the diameter of the rib 2k. Positioning is performed by positioning (externally fitting) outside in the direction. In this state, the outlet 2h and the vent 2j are blocked by the base 5a. The through hole 3h is closed when the valve body 5c covering the through hole 3h is seated on the top wall 3g, while the cylindrical wall 3i is formed by a gap formed between the elastic piece 5b and the valve body 5c. Some are open. The inner plug 3, the moving valve body 4 and the check valve 5 are assembled to the base 2 in advance by assembling the moving valve body 4 and the check valve 5 to the inner plug 3. Insert from. At this time, since the inner plug 3 has the inclined surface 3e on the upper portion of the first claw portion 3b and the base 2 has the inclined surface 2f, the inner plug 3 can be easily fitted by being guided by these inclined surfaces. .

  A lid 6 is provided above the base 2. The lid 6 includes a plate-like upper wall 6a and an outer peripheral wall 6b that is integrally connected to the upper wall 6a and is continuous to the cylindrical wall 2a. The outer peripheral wall 6b is provided with a hinge 6c that is integrally connected to the cylindrical wall 2a. A finger hook 6d that protrudes radially outward is provided at a position facing the hinge 6c. A cylindrical (or columnar) seal portion 6e that enters the dispensing tube 2i is provided on the lower surface of the upper wall 6a. A stopper 6f extending toward the top wall 2g is provided on the radially outer side of the seal portion 6e. The stopper 6f has a function of preventing deformation of the upper wall 6a by contacting the top wall 2g when an excessive pressing force is applied to the upper surface of the upper wall 6a.

  The pouring cap 1 having such a configuration can be attached to, for example, the container body 7 shown in FIG. The container body 7 of the present embodiment is a double container composed of an outer layer body 8 and an inner layer body 9.

  The outer layer body 8 is formed by sequentially connecting a body portion and a bottom portion (not shown) to a cylindrical mouth portion 8a, and has reversible flexibility. On the outer peripheral surface of the mouth portion 8a, a male screw portion 8b adapted to the female screw portion 3f of the inner plug 3 is provided. In the present embodiment, when the inner plug 3 is rotated clockwise, the female screw portion 3f is fastened to the male screw portion 8b. In addition, a hole (outside air introduction hole) 8c is provided in the mouth portion 8a, and a vertical groove 8d in which a male screw portion 8b is cut in the vertical direction is provided on the outer peripheral surface provided with the outside air introduction hole 8c. .

  The inner layer body 9 is formed in a thin bag shape, and includes a filling space S in which the contents can be filled.

  In order to attach the dispensing cap 1 to the container body 7, in this embodiment, the base 2 is rotated clockwise with respect to the container body 7. As a result, as shown in FIG. 2, the second claw portion 2b of the base 2 engages with the first claw portion 3b of the inner plug 3 to rotate the inner plug 3 clockwise. The extraction cap 1 can be mounted by being fastened to the male screw portion 8b.

  In order to pour out the contents of the filling space S, the lid body 6 is opened, the container body 7 in the upright posture is displaced to the tilted posture, and the body portion of the outer layer body 8 is pressed. As a result, the filling space S is pressurized, and the valve body 5c seated on the top wall 3g is separated from the top wall 3g, and the contents in the filling space S include the through hole 3h, the valve body 5c, the top wall 3g, , The gap between the elastic piece 5b and the valve body 5c, and is discharged from the extraction cylinder 2i through the outlet 2h. At this time, the moving valve body 4 moves to the dispensing cylinder 2i side.

  After the predetermined amount of content has been poured out, the pressure on the outer layer body 8 is released and the container body 7 is returned to the original upright posture. As a result, the pressure in the filling space S is reduced and the valve body 5c closes the through hole 3h, so that the introduction of outside air into the filling space S can be effectively prevented. Further, since the outer layer body 8 tries to return to its original shape by its own restoring force, the outer layer body 8 and the inner layer body 9 are in a negative pressure state. Air is introduced between the outer layer body 8 and the inner layer body 9 from the outside air introduction hole 8c through the opening 3q and the vertical groove 8d, and the outer layer body 8 is restored while the volume of the inner layer body 9 is reduced. At this time, the moving valve body 4 moves to the inclined portion 3j side, and accordingly, the contents in the dispensing cylinder 2i can be drawn into the cylindrical wall 3i side through the gap between the elastic piece 5b and the valve body 5c. Yes (suck back). As a result, dripping from the dispensing cylinder 2i can be prevented.

  When the base 2 is rotated counterclockwise in order to remove the dispensing cap 1 from the container body 7, as shown in FIG. 2, the counterclockwise end 2d of the second claw portion 2b becomes the first claw portion. The counterclockwise end 2d and the clockwise end 3d are both inclined toward the tangential line of the circle with the center axis C as the center, though the second claw portion 2b is in contact with the clockwise end 3d of 3b. Gets over the first claw portion 3b. That is, since the base 2 idles with respect to the inner plug 3, the female screw portion 3f and the male screw portion 8b do not loosen. Further, the check valve 5 has the base concave portion 5d fitted into the inner plug convex portion 3m and is held against the inner plug 3 so that the functions of the elastic piece 5b and the valve body 5c are hindered. There is no.

  In the present embodiment, the first claw portion 3b is provided at the lower portion of the outer surface of the inner peripheral wall 3a, and the second claw portion 2b, the stepped portion 2e, and the inclined surface 2f are provided at the lower portion of the inner surface of the cylindrical wall 2a of the base 2. Although provided, the arrangement of the first claw portion 3b, the second claw portion 2b, the stepped portion 2e, and the inclined surface 2f can be changed as appropriate. That is, instead of such a configuration, for example, the first claw portion 3b is provided on the upper portion of the outer surface of the inner peripheral wall 3a ′, and the second claw portion 2b and the step portion 2e are formed on the upper portion of the inner surface of the cylindrical wall 2a of the base 2. And it is good also as a structure which provides 2 f of inclined surfaces.

  Next, a modification of the above-described embodiment will be described with reference to FIGS. Note that portions having the same basic functions as those of the above-described embodiment are denoted by the same reference numerals in the drawing and description thereof is omitted.

  The dispensing cap 1 ′ of this modification includes a base 2 ′, an inner plug 3 ′, and a check valve 15 instead of the base 2, the inner plug 3, and the check valve 5 described above.

  The base 2 ′ has a cylindrical shape and includes a cylindrical wall 2 a ′ that surrounds the mouth 8 a of the outer layer body 8. As shown in FIGS. 4 and 5, a second claw portion 2 b ′ that engages with a first claw portion 3 b ′ described later is provided on the upper portion of the inner surface of the cylindrical wall 2 a ′. As shown in FIG. 5, the second claw portion 2 b ′ has a clockwise end 2 c ′ extending in the radial direction around the central axis C of the cylindrical wall 2 a ′, and the counterclockwise end 2 d ′ is It is inclined to approach a tangent of a circle centered on the central axis C. As shown in FIG. 5, a plurality of second claw portions 2 b ′ are provided at intervals in the circumferential direction (four in the present embodiment at equal intervals in the circumferential direction). Further, as shown in FIG. 4, an annular protrusion 2 l that engages with an annular protrusion 3 r provided on a lower part of the outer surface of the inner peripheral wall 3 a ′ and holds the base 2 ′ at its lower part on the inner surface of the cylindrical wall 2 a ′ Is provided.

  An inner plug 3 'is attached to the inside of the base 2'. In the above-described embodiment, the inner peripheral wall 3a of the inner plug 3 is integrally connected to the top wall 3g. However, in the pouring cap 1 ′ of this modification, the inner peripheral wall 3a ′ of the inner plug 3 ′ is the top wall 3g. It is provided separately and is connected to the top wall 3g. Further, the ceiling wall 3g of the present modification has a hole (communication port) 3s at the base of the annular wall 3n, instead of the groove 3p and the communication port 3q that have been provided with the function of introducing outside air in the ceiling wall 3g described above. Is provided. In addition, in this modification, although the inside plug convex part 3m which holds the non-return valve 5 mentioned above is abbreviate | omitted, it is good also as a structure which provides the inside plug convex part 3m.

  A first claw portion 3 b ′ is provided on the outer surface of the inner peripheral wall 3 a ′ of the inner plug 3 ′. As shown in FIG. 5, the first claw portion 3 b ′ is formed as an elastically deformable cantilever bend portion in which the clockwise end 3 d ′ is integrally connected to the inner peripheral wall 3 a ′. The counterclockwise end 3c ′ of the first claw portion 3b ′ extends in the radial direction around the central axis C, and the clockwise end 3d ′ approaches a tangent of a circle around the central axis C. Inclined in the direction. A plurality of first claw portions 3b 'are provided at intervals in the circumferential direction (in the present embodiment, four at regular intervals in the circumferential direction). Since the first claw portion 3b ′ is close to or in contact with the inner surface of the opposing cylindrical wall 2a ′, the base 2 ′ can be rotated with respect to the inner plug 3 ′ about the central axis C. it can. A female screw portion 3f 'is provided on the inner surface of the inner peripheral wall 3a'.

  The check valve 15 is obtained by providing a thin annular outer valve body 15a on the outer surface of the base portion 5a with respect to the check valve 5 described above. The outer valve body 15a is normally seated on the lower surface of the top wall 2g and closes the vent 2j.

  In order to incorporate the inner plug 3 ′, the movable valve body 4 and the check valve 15 into the base 2 ′, the inner wall 3a ′ of the inner plug 3 ′ is first assembled to the base 2 ′, and the top wall of the inner plug 3 ′ is assembled. The moving valve body 4 and the check valve 15 are assembled with respect to 3 g and inserted from below the base 2 ′. At this time, the annular protrusion 3t provided on the outer peripheral surface of the top wall 3g of the inner plug 3 'is fitted with the annular protrusion 3u provided on the upper surface of the inner peripheral wall 3a' of the inner plug 3 so that the ceiling wall 3 g is retained by the inner peripheral wall 3 a ′ to prevent it from coming off.

  In order to attach the dispensing cap 1 ′ to the container body 7, the base 2 ′ is rotated clockwise with respect to the mouth portion 8 a. Accordingly, as shown in FIG. 5, the second claw portion 2b ′ of the base 2 ′ engages with the first claw portion 3b ′ of the inner peripheral wall 3a ′ to rotate the inner peripheral wall 3a ′ clockwise. The female screw portion 3 f ′ is fastened to the male screw portion 8 b and can be attached to the container body 7. Even when the base 2 ′ is rotated counterclockwise, the second claw portion 2b ′ gets over the first claw portion 3b ′ and the base 2 ′ rotates idly, as in the previous embodiment. 3f 'and the external thread part 8b do not loosen. In this case, in the present modification, the first claw portion 3b ′ is formed as a bend portion having a cantilever shape that can be elastically deformed, so the second claw portion 2b ′ can easily form the first claw portion 3b ′. It can be overcome by elastic deformation.

  In order to pour out the contents of the filling space S, the container body 7 is displaced in a tilted posture and the body portion of the outer layer body 8 is pressed as in the previous embodiment. As a result, the filling space S is pressurized and the contents can be poured out from the dispensing cylinder 2i. When the pressure on the outer layer body 8 is released, the outer valve body 15a is separated from the top wall 2g by the negative pressure between the outer layer body 8 and the inner layer body 9 as the outer layer body 8 is restored. Then, air is introduced between the outer layer body 8 and the inner layer body 9 from the outside air introduction hole 8c through the vent 2j, the gap between the outer valve body 15a and the top wall 2g, the communication port 3s, and the vertical groove 8d. Therefore, the outer layer body 8 can be restored while the volume of the inner layer body 9 is reduced.

  In this modification, a first claw portion 3b ′ formed as an elastically deformable cantilever bend portion is provided on the outer surface of the inner peripheral wall 3a ′, and the cylindrical wall of the base 2 ′ is provided. Although the second claw portion 2b ′ is provided in the upper part of the inner surface of 2a ′, the vertical position of the first claw portion 3b ′ and the second claw portion 2b ′ can be changed. That is, instead of such a configuration, for example, the first claw portion 3b ′ is provided at the lower portion of the outer surface of the inner peripheral wall 3a ′, and the second claw portion 2b ′ is provided at the lower portion of the inner surface of the cylindrical wall 2a ′ of the base 2 ′. It is good also as a structure which provides.

  In the present modification, the first claw portion 3b 'is formed as a bend portion that can be elastically deformed. Instead, the second claw portion 2b' can be elastically deformed. You may form as a bend part which makes a shape.

  Furthermore, in the present modification, the inner peripheral wall 3a ′ of the inner plug 3 ′ has been described as being provided separately from the top wall 3g, but instead of such a configuration, the inner peripheral wall 3a ′ and the top wall 3g And may be provided integrally.

  Next, another modification of the embodiment described above with reference to FIGS. 1 to 3 will be described with reference to FIGS. In addition, the part which has the same basic function as the modified example described above with reference to FIGS.

  The dispensing cap 1 ″ of this modification is provided with a base 2 ″ and an inner plug 3 ″ instead of the base 2 ′ and the inner plug 3 ′ described above. In the modified example, a first claw portion 3b ′ formed as a bend portion having a cantilever shape that can be elastically deformed is provided on the outer surface of the inner peripheral wall 3a ′ and the second inner surface of the cylindrical wall 2a ′ of the base 2 ′. Although the claw portion 2b 'is provided, in this modification, instead of such a configuration, as shown in FIGS. 6 and 7, a bend having a cantilever shape that can be elastically deformed on the upper surface of the inner peripheral wall 3a' ' A third claw portion 3b ″ formed as a portion is provided, and a fourth claw portion 2b ″ is provided on the lower surface of the top wall 2g ″ of the base 2 ″.

  On the lower surface of the top wall 2g ″ of the base 2 ″, as shown in FIGS. 6 and 7, a fourth claw portion 2b ″ is provided along a circumferential track centering on the central axis C of the cylindrical wall 2a ″. . As shown in FIG. 7, the fourth claw portion 2b ″ has a clockwise end 2c ″ extending in a direction along the central axis C, and a counterclockwise end 2d ″ in a direction perpendicular to the central axis C. A plurality of fourth claw portions 2b ″ are provided at intervals in the circumferential direction (four in the present embodiment at equal intervals in the circumferential direction). Further, as shown in FIG. 6, an annular protrusion that engages with an annular protrusion 3r ″ provided on the outer surface of the inner peripheral wall 3a ″ and holds the base 2 ″ at its upper portion on the inner surface of the cylindrical wall 2a ″. 2l "is provided.

  As shown in FIGS. 6 and 7, a third claw portion 3 b ″ is provided on the upper surface of the inner peripheral wall 3 a ″ of the inner plug 3 ″ along a circumferential track centering on the central axis C. As shown, the third claw portion 3b ″ is formed as an elastically deformable cantilever bend portion in which the clockwise end 3d ″ is integrally connected to the inner peripheral wall 3a ″. The counterclockwise end 3c ″ of the third claw portion 3b ″ extends in a direction along the central axis C, and the clockwise end 3d ″ is inclined so as to approach a direction perpendicular to the central axis C. A plurality of third claw portions 3b ″ are provided at intervals in the circumferential direction (in the present embodiment, four at equal intervals in the circumferential direction). An internal thread portion 3f ″ is provided on the inner surface of the inner peripheral wall 3a ″.

  The inner plug 3 ″, the movable valve body 4 and the check valve 15 can be incorporated into the base 2 ″ in the same manner as in the above-described modification. In order to attach the dispensing cap 1 "to the container body 7, the base 2" is rotated clockwise with respect to the mouth 8a. Accordingly, as shown in FIG. 7, the fourth claw portion 2b ″ of the base 2 ″ engages with the third claw portion 3b ″ of the inner peripheral wall 3a ″ to rotate the inner peripheral wall 3a ″ clockwise. The female screw portion 3 f ″ is fastened to the male screw portion 8 b and can be attached to the container body 7. Even when the base 2 ″ is rotated counterclockwise, the fourth claw portion 2b ″ gets over the third claw portion 3b ″ and the base 2 ″ rotates idly as in the previous embodiment. 3f ″ and the male screw portion 8b are not loosened. In this case, the third claw portion 3b ″ is formed as a bend portion having a cantilever shape that can be elastically deformed. The portion 2b ″ can easily get over the third claw portion 3b ″ by elastic deformation.

  In the present modification, the third claw portion 3b ″ is formed as a bend portion that can be elastically deformed. Instead, the fourth claw portion 2b ″ is elastically deformable. You may form as a bend part which makes a shape.

  Further, in this modification, the inner peripheral wall 3a ″ of the inner plug 3 ″ is provided separately from the top wall 3g. Instead of such a configuration, the inner peripheral wall 3a ″ and the top wall 3g are replaced with each other. It is good also as a structure provided integrally.

  Next, another embodiment according to the present invention will be described with reference to FIGS. In addition, the part which is fundamentally the same as embodiment mentioned above using FIGS. 1-3 attaches | subjects the same code | symbol in a figure, and abbreviate | omits description.

  The dispensing cap 11 of this embodiment includes a base 12, an inner plug 13, and a check valve 15 in place of the base 2, the inner plug 3 and the check valve 5 described above, and further has a ring body 17 attached thereto. I have.

  The base 12 has a cylindrical shape and includes a cylindrical wall 12 a that surrounds the mouth 8 a of the outer layer body 8. On the inner surface of the cylindrical wall 12a, a female screw portion 12b linked to a male screw portion 8b provided in the mouth portion 8a is provided. Moreover, the 5th nail | claw part 12c is provided in the outer surface of the cylinder wall 12a. As shown in FIG. 5, the fifth claw portion 12c has a counterclockwise end 12d extending in a radial direction centered on the central axis C of the cylindrical wall 12a, and the clockwise end 12e is centered on the central axis C. It is inclined to approach the tangent of the circle. As shown in FIG. 9, a plurality of fifth claw portions 12c are provided at intervals in the circumferential direction (two in the opposite position in this embodiment), and will be described later between the fifth claw portions 12c. A step portion 12f that engages with the sixth claw portion on the lower side is provided. An alignment rib 12g is provided on the outer surface of the cylindrical wall 12a so as to protrude radially outward from the fifth claw portion 12c. As shown in FIG. 8, an inclined surface 12h is provided below the fifth claw portion 12c and the stepped portion 12f. The inclined surface 12h is inclined downward inward in the radial direction.

  An inner plug 13 is attached to the inside of the base 12. The inner plug 13 is obtained by omitting the inner peripheral wall 3a of the inner plug 3 described above, the first claw portion 3b provided on the inner peripheral wall 3a, and the inner plug convex portion 3m that holds the check valve 5 in a non-rotating state. It is. Moreover, it replaces with the groove part 3p and the communication port 3q which were fulfilling the function which introduce | transduces external air, and the hole (communication port) 13a is provided in the root of the annular wall 3n.

  The check valve 15 is obtained by providing a thin annular outer valve body 15a on the outer surface of the base portion 5a with respect to the check valve 5 described above. The outer valve body 15a is normally seated on the lower surface of the top wall 2g and closes the vent 2j.

  The ring body 17 has a cylindrical shape surrounding the cylindrical wall 12a. A sixth claw portion 17a that engages with the fifth claw portion 12c is provided on the inner surface of the ring body 17. The sixth claw portion 17a has a clockwise end 17b extending in the radial direction centered on the central axis C, and the counterclockwise end 17c approaches a tangent of a circle centered on the central axis C. It is inclined. As shown in FIG. 9, a plurality of sixth claw portions 17 a are provided (two in the opposite position in the present embodiment) with a gap in the circumferential direction. The sixth claw portion 17a is close to or in contact with the outer surface of the opposing cylindrical wall 12a, and the fifth claw portion 12c is close to or in contact with the inner surface of the opposing ring body 17, so that the ring body 17 can rotate with respect to the base 12 about the central axis C. Further, as shown in FIG. 8, the sixth claw portion 17 a is engaged with the lower portion by the step portion 12 f, whereby the ring body 17 is held by the base 12 so as not to be detached. An inclined surface 17d is provided at the upper end of the sixth claw portion 17a as shown in FIG. Furthermore, a longitudinal groove 17 e extending along the central axis C is provided on the inner surface of the ring body 17.

  When the ring body 17 is assembled into the base 12, the ring body 17 is inserted from below in a state where the positioning ribs 12 g and the longitudinal grooves 17 e are aligned with the base 12. At this time, when the sixth claw portion 17a of the ring body 17 is fitted into the step portion 12f of the base 12, the inclined surface 12h and the inclined surface 17d function as a guide.

  And in order to attach the extraction | pouring cap 11 to the container main body 7, the ring body 17 is rotated clockwise with respect to the opening part 8a. As a result, as shown in FIG. 9, the sixth claw portion 17a of the ring body 17 engages with the fifth claw portion 12c of the base 12 to rotate the base 12 clockwise, so that the female screw portion 12b is a male screw portion. It is fastened to 8b and can be attached to the container body 7. Even when the ring body 17 is rotated counterclockwise, the sixth claw portion 17a gets over the fifth claw portion 12c and the ring body 17 rotates idly, as in the previous embodiment. The male screw portion 8b does not loosen.

  In order to pour out the contents of the filling space S, the container body 7 is displaced in a tilted posture and the body portion of the outer layer body 8 is pressed as in the previous embodiment. As a result, the filling space S is pressurized and the contents can be poured out from the dispensing cylinder 2i. When the pressure on the outer layer body 8 is released, the outer valve body 15a is separated from the top wall 2g by the negative pressure between the outer layer body 8 and the inner layer body 9 as the outer layer body 8 is restored. Thus, air is introduced between the outer layer body 8 and the inner layer body 9 from the outside air introduction hole 8c via the gap between the vent 2j, the outer valve body 15a and the top wall 2g, the communication port 13a, and the longitudinal groove 8d. Therefore, the outer layer body 8 can be restored while the volume of the inner layer body 9 is reduced.

  The dispensing cap and the container according to the present invention are not limited to this embodiment, and various modifications can be made within the scope according to the claims. For example, the number, position, and shape of the first to sixth claw portions are not limited to the above-described embodiments, and various mechanisms that engage when rotating in one direction and idle when rotating in the other direction are used. Can be applied. Moreover, the outside air introduction hole 8c provided in the outer layer body 8 is not limited to being provided in the mouth portion 8a, and may be provided in the trunk portion or the bottom portion.

1, 1 ': Discharge cap 2, 2', 2 ": Base 2a, 2a ', 2a": Tube wall 2b, 2b': Second claw portion 2b ": Fourth claw portion 2c, 2c ', 2c" : Clockwise end 2d, 2d ', 2d ": Counterclockwise end 2e: Stepped portion 2f: Inclined surface 2g, 2g": Top wall 2h: Outlet 2i: Outlet tube 2j: Vent 2k: Rib 2l, 2l ": Annular protrusion 3, 3 ', 3": inner plug 3a, 3a', 3a ": inner peripheral wall 3b, 3b ': first claw part 3b": third claw part 3c, 3c', 3c ": counterclockwise Rotating end 3d, 3d ′, 3d ″: clockwise end 3e: inclined surface 3f, 3f ′, 3f ″: female screw portion 3g: top wall 3h: through hole 3i: cylindrical wall 3j: inclined portion 3k: recessed portion 3m: middle Plug projection 3n: annular wall 3p: groove 3q: communication port 3r, 3r ": annular projection 3s: communication port 3t: annular projection 3u: annular projection 4: moving valve body 5: check valve 5a: base 5b: bullet Piece 5c: Valve 5d: Base recess 6: Lid 6a: Upper wall 6b: Outer wall 6c: Hinge 6d: Finger hook 6e: Seal 6f: Stopper 7: Container body 8: Outer layer 8a: Mouth 8b: Male screw Portion 8c: Outside air introduction hole 8d: Vertical groove 9: Inner layer body 11: Outlet cap 12: Base 12a: Tube wall 12b: Female thread portion 12c: 5th claw portion 12d: Counterclockwise end 12e: Clockwise end 12f: Step Portion 12g: positioning rib 12h: inclined surface 13: inner plug 13a: communication port 15: check valve 15a: outer valve body 17: ring body 17a: sixth claw portion 17b: clockwise end 17c: counterclockwise end 17d: inclined surface 17e: longitudinal groove C: central axis S: filling space

Claims (8)

A base wall having a cylindrical wall surrounding the mouth portion of the container body with a space therebetween, and a base wall formed on the top wall connected to the tubular wall and having an outlet for contents contained in the container body, An inner plug that covers the opening and has a through-hole, and is disposed between the top wall and the top wall, and an inner plug that is rotatably arranged around the central axis of the cylindrical wall inside the base And a check valve that opens and closes the through hole,
The inner plug is connected to the top wall and has an inner peripheral wall located between the mouth portion and the cylindrical wall, and an internal thread portion provided on an inner surface of the inner peripheral wall and linked to an external thread portion provided in the mouth portion. And a first claw portion provided on the outer surface of the inner peripheral wall,
The base is provided on the inner surface of the cylindrical wall, and is engaged with the first claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, while around the central axis. An extraction cap provided with a second claw portion that idles with respect to the inner peripheral wall when rotated in the other direction.   The pouring cap according to claim 1, wherein one of the first claw portion and the second claw portion is formed as a bend portion having a cantilever shape that can be elastically deformed. A base wall having a cylindrical wall surrounding the mouth portion of the container body with a space therebetween, and a base wall formed on the top wall connected to the tubular wall and having an outlet for contents contained in the container body, An inner plug that covers the opening and has a through-hole, and is disposed between the top wall and the top wall, and an inner plug that is rotatably arranged around the central axis of the cylindrical wall inside the base And a check valve that opens and closes the through hole,
The inner plug is connected to the top wall and has an inner peripheral wall located between the mouth portion and the cylindrical wall, and an internal thread portion provided on an inner surface of the inner peripheral wall and linked to an external thread portion provided in the mouth portion. And a third claw portion provided on the upper surface of the inner peripheral wall,
The base is provided on the lower surface of the top wall, and is engaged with the third claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, An extraction cap provided with a fourth claw portion that idles with respect to the inner peripheral wall when rotated in the other direction.   The pouring cap according to claim 3, wherein one of the third claw portion and the fourth claw portion is formed as a bend portion having a cantilever shape that can be elastically deformed.   The extraction cap according to any one of claims 1 to 4, wherein the check valve is held against rotation with respect to the inner plug.   The check valve has a base portion that supports the valve body that covers the through hole via an elastic piece, and a base concave portion or a base convex portion that is provided in the base portion, and the inner plug includes the base concave portion or The pouring cap according to claim 5, further comprising an inner plug convex portion or an inner plug concave portion that engages with the base convex portion and holds the check valve in a non-rotating state. A cylinder wall surrounding the mouth of the container body, and a top wall connected to the cylinder wall covering a base formed with an outlet for contents contained in the container body, and covering the opening of the mouth An inner plug disposed inside the base, the check valve disposed between the top wall and the top wall to open and close the through hole, and the cylindrical wall And a ring body arranged so as to be rotatable around the central axis of the cylindrical wall,
The base includes an internal thread portion provided on an inner surface of the cylindrical wall and linked to an external thread portion provided in the mouth portion, and a fifth claw portion provided on an outer surface of the cylindrical wall,
The ring body is provided on the inner surface of the ring body, and engages with the third claw portion by rotating in one direction around the central axis to fasten the female screw portion to the male screw portion, while around the central axis. A pouring cap comprising a sixth claw portion that idles with respect to the cylindrical wall when rotating in the other direction.   A container having the dispensing cap according to any one of claims 1 to 7 attached to the container body, wherein the container body is provided on an inner side of the outer layer body having an outside air introduction hole and the outer layer body. A container comprising an inner layer body that takes in air between the outer air introduction hole and the outer layer body in accordance with the extraction of the contained contents, and undergoes volume reduction deformation.

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