JP2012224375A - Cap and capped container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap configured to prevent generation of abnormal noise in opening, and a capped container provided with the same.SOLUTION: The cap includes, as an inside plug 2, a body side cylindrical portion 6 fitted to an opening portion 50a of a container body 50 and a separation portion 4 continued to a tip thereof through a score 7, in which a flange 4d of the separation portion is held by an annular projection 9 extended downward from the upper end inner wall of an upper lid by screwing the upper lid into the opening portion of the container body, the separation portion is separated from the body cylindrical portion together with the upper lid when the upper lid is separated from the container body to thereby form an opening. A thin extended portion 4e is formed on the circumferential surface of the flange, so that when the flange of the inside plug is slid on the inner circumferential surface of the projection of the upper lid, the air in a space defined by the protruding portion and the flange is gradually discharged through the thin extension portion, whereby the generation of abnormal noise is prevented.

Description

  The present invention relates to a cap provided at the mouth of a bottle-shaped container and a container with a lid provided with such a cap.

  The known lidded container is provided with an inner stopper and an upper lid as a cap, and as an inner stopper, a main body side cylindrical portion that is fitted into the opening of the bottle, and a leading end thereof are connected via a score. There is one provided with a separating portion (see FIG. 10 of Patent Document 1).

  In this cap, the separation part separated from the main body side cylindrical part by screwing the upper lid into the opening of the bottle is held by an annular protrusion extending downward from the upper end inner wall of the upper lid.

  This cap can be easily opened just by screwing the upper lid into the container mouth, and the separation part separated by opening can be held on the inner wall at the upper end of the upper lid and can function as a seal after opening. Therefore, it is extremely easy to use, that is, easy to use.

  By the way, in the container with a lid provided with the cap described in Patent Document 1, the separation portion of the inner plug is held by the annular protrusion extending downward from the upper end inner wall of the upper lid. The separation part must be in close contact with the outer peripheral surface. Then, when the separating portion enters the annular projecting portion, the compressed air between the projecting portion and the separating portion is ejected all at once, which may cause abnormal noise.

Pamphlet of International Publication No. WO2007 / 126062

  An object of this invention is to provide the cap with which the generation | occurrence | production of the noise in the case of opening of a plug was prevented, and a container with a lid provided with this.

  In order to solve the above problems, a cap according to the present invention includes: (a) an inner plug having a separating portion for forming an opening in the sealed space, forming a sealed space for enclosing contents together with the container body; (B) A cap comprising an upper lid that allows the separation part to be separated from the inner plug to form an opening and has holding means for holding the separation part when the separation part is separated; ) The inner plug has an upper opening that is closed by the separation part, has a main body part that is connected to the separation part at the upper opening and is locked to the container main body at the periphery, and (d) the holding means is An annular projecting portion that extends downward from the lower surface of the upper end wall of the upper lid and engages with a flange formed on the upper portion of the separation portion, and (e) the flange is a thin-walled extension portion extending from the periphery of the flange Have

  In the above cap, when the upper lid is moved forward toward the back of the container body (at the time of first opening), when the flange of the inner plug slides on the inner peripheral surface of the protruding portion of the upper lid, the protruding portion and the flange The air in the space defined by is gradually exhausted through the thinned expansion portion. Thereby, opening operation | movement becomes smooth and it can prevent that abnormal noise generate | occur | produces from a flange periphery. If the air in the space defined by the protrusion and the flange is compressed in a state where the entire peripheral surface of the flange is in close contact with the inner peripheral surface of the protrusion without providing the thinned expansion portion, the flange In addition to resistance to movement, there is a case where the compressed air suddenly ejects from between the inner peripheral surface of the protrusion and the peripheral surface of the flange. By providing the thin expanded portion extending from the peripheral edge of the above, the above problem is prevented.

  In a specific aspect of the present invention, the upper lid is engaged with the flange of the separation portion by rotating the upper lid in the direction of tightening the upper lid during the opening operation for forming the opening, and the separation portion is During the opening / closing operation after separating from the stopper and forming the opening, the separating portion is held by the protrusion and moves together with the separating portion. In this case, since the separating portion can be held by the protruding portion after opening, the separating portion can be prevented from becoming dust, and the separating portion can function as a stopper, for example.

  In another aspect of the present invention, the main body portion has a main body side cylindrical portion that defines an upper opening, and the separation portion is on either the inner diameter side or the outer diameter side with respect to the main body side cylindrical portion. The separation portion side cylindrical portion is offset. In this case, after separating the separation part from the main body part at the time of opening, when the upper lid is screwed or pushed into the container body again, the separation part side cylindrical part and the main body side cylindrical part are fitted so that they overlap. As a result, liquid separation between the separating portion and the main body portion can be achieved even after opening. That is, it is possible to prevent liquid leakage when the upper lid is closed after opening.

  In yet another aspect of the invention, the annular protrusion extends substantially parallel to the flange along the periphery of the flange. In this case, the holding force of the flange of the separating portion by the protruding portion of the holding means can be appropriately adjusted by adjusting the width and elasticity of the annular protruding portion.

  In still another aspect of the present invention, the thin-walled extended portion has a notch penetrating in a direction perpendicular to the surface on which the flange extends. In this case, the air in the space defined by the protruding portion of the upper lid and the flange of the separating portion of the inner plug is surely discharged through the notch provided in the thin-walled expanded portion. Occurrence can be prevented more reliably.

  In still another aspect of the present invention, the notches are formed at substantially equal intervals at a plurality of locations over the entire circumference of the extended portion. In this case, the air in the space defined by the protruding portion of the upper lid and the flange of the separating portion of the inner plug is discharged from the entire circumference of the flange, so that the separating portion enters the protruding portion with uniform resistance.

  In yet another aspect of the present invention, the protruding portion of the upper lid is located on the inner peripheral surface at the lower peripheral edge of the lower surface of the separating portion while the flange of the separating portion is accommodated in the protruding portion, and locks the separating portion. It has an annular bulge. In this case, the separating portion is reliably held in the protruding portion of the upper lid by the bulging portion.

  In still another aspect of the present invention, the protruding portion of the upper lid has an annular holding groove for receiving the thinly widened portion of the flange in a state where the flange of the separating portion is accommodated in the protruding portion on the inner peripheral surface. In this case, the separating portion is reliably held in the protruding portion of the upper lid by the holding groove.

  In still another aspect of the present invention, the protrusion of the upper lid has a ventilation groove extending in a direction perpendicular to the surface of the flange on the inner peripheral surface. In this case, the air in the space defined by the protruding portion of the upper lid and the flange of the separating portion of the inner plug is reliably discharged through the ventilation groove provided on the inner peripheral surface of the protruding portion.

  In still another aspect of the present invention, the upper lid may be coupled to the opening of the container body by screwing. In this case, the separation part is separated from the inner plug with the rotation of the upper lid, an opening is formed, and the separation part can be held by the holding means of the upper lid, so that the opening operation is facilitated.

  In still another aspect of the present invention, the upper lid may be configured by an attachment portion that is attached to the opening of the container body, and an opening / closing lid that is connected to the attachment portion via a hinge and includes an annular protrusion on the lower surface. Good. In this case, after opening the inner plug, an opening / closing operation such as opening or closing the cap can be easily performed with a single touch using the opening / closing lid.

  In order to solve the above problems, a lidded container according to the present invention is provided at (a) a container body that constitutes a container body and stores a liquid as a content, and (b) a mouth of the container body. One of the caps described above is provided.

  In the container with a lid, since any one of the caps described above is used, the opening operation, that is, the opening of the inner plug can be performed easily and reliably with the rotation of the upper lid. The design is not restricted, and no garbage is left on the table after opening.

It is sectional drawing for demonstrating the cap which concerns on this invention. It is a disassembled perspective view of the cap which concerns on this invention. The principal part of the inner stopper of the cap which concerns on this invention is expanded and shown, (a) is a top view of the isolation | separation part of an inner stopper, (b) is the principal part sectional drawing. (A)-(c) is sectional drawing which expanded and showed the A, B, C part in FIG. (A)-(d) is sectional drawing which showed operation | movement of the cap which concerns on this invention. (A)-(c) is sectional drawing which showed the contact state of the protrusion part of an upper cover in the operation | movement of the cap which concerns on this invention, and the flange of an inner cap. It is sectional drawing for demonstrating the cap which concerns on 2nd Embodiment. It is sectional drawing for demonstrating the action | operation of the cap shown in FIG. (A)-(d) is sectional drawing for demonstrating the cap which concerns on 3rd Embodiment. It is sectional drawing for demonstrating the cap which concerns on 4th Embodiment. (A) And (b) is sectional drawing for demonstrating the action | operation of the cap shown in FIG. It is an expanded sectional view explaining the modification of the cap concerning the present invention. It is a top view explaining another modification of the cap concerning the present invention. It is a top view explaining another modification of the cap concerning the present invention. It is a side view explaining another modification of the cap concerning the present invention.

[First Embodiment]
Hereinafter, with reference to FIG. 1 thru | or FIG. 6, the cap and the container with a lid concerning 1st Embodiment of this invention are demonstrated.

  As shown in FIG. 1, the cap 1 is attached to a mouth portion 50 a of a container body 50 that is a bottle, and includes an inner plug 2 that is a lid body and an upper lid 3 that is an upper lid. The cap 1 and the container main body 50 are a container 100 with a lid for storing and storing a liquid.

  The inner plug 2 is an integrally molded product made of resin, and includes a separation portion 4, a fitting portion 5, and a main body side cylindrical portion 6 as shown in FIG. 2. Here, the fitting part 5 and the main body side cylindrical part 6 constitute a main body part 20 of the inner plug 2.

  The separation part 4 of the inner plug 2 includes a separation part side cylindrical part 4 b that is offset from the main body side cylindrical part 6 to the inner diameter side by the thickness of the main body side cylindrical part 6. A ceiling wall 4c that closes the upper opening is stretched over the separation portion side tubular portion 4b. Further, the ceiling wall 4c is formed with a flange 4d extending outward in the radial direction. As shown in FIGS. 3 (a) and 3 (b), the flange 4d has a thin wall over the entire circumference, for example, a thickness of about 0.2 mm with respect to a thickness of 1.2 mm of the flange 4d. Now, an annular flange-like widened portion 4e having a width of about 0.3 mm with respect to a diameter of 22 mm of the flange 4d is formed. In the thin expanded portion 4e, notches 4f having a width of about 1 mm are formed at a plurality of, for example, three locations at equal intervals in the circumferential direction. And the lower end of the separation part side cylindrical part 4b is connected with the upper end of the main body side cylindrical part 6 by the thin score 7, as shown in FIG.3 (b).

  As shown in FIG. 2, the fitting portion 5 of the inner plug 2 is in close contact with the outer cylinder portion 5 a fixed in close contact with the outer peripheral wall of the mouth portion 50 a of the container body 50 and the inner peripheral wall of the mouth portion 50 a. The inner cylinder part 5b to be fixed and the horizontal part 5c that is in close contact with the mouth part 50a and connects the outer cylinder part 5a and the inner cylinder part 5b are configured. And as shown in FIG.4 (b), the annular recessed part 5d over the outer peripheral surface whole periphery is formed in the outer cylinder part 5a, and the cyclic | annular protrusion 5e over the inner peripheral surface lower part periphery is formed. Moreover, as shown in FIG.4 (c), the two cylindrical ribs 5f over the perimeter of an outer peripheral surface are formed in the inner cylinder part 5b. The annular protrusion 5e and the annular rib 5f are in pressure contact with the mouth portion 50a of the container main body 50 to more firmly lock the inner plug 2 to the container main body 50, and the recess 5d includes the upper lid 3 and the inner plug 2 This is to improve the operability of the upper lid 3 by avoiding the contact of the upper lid 3 and to improve the detachability when the inner plug is separated from the main body.

  The main body side cylindrical portion 6 of the inner plug 2 shown in FIG. 2 has a lip 6a which is formed in a conical cylindrical shape as a whole and whose diameter increases upward at the upper end portion (see FIG. 3B). Improves liquid drainage when the liquid in the container body 50 is poured out.

  The inner plug 2 forms an airtight or liquid tightly sealed space together with the container body 50 by a stopper. As shown in an enlarged view in FIG. 3B, the separating portion 4 of the inner plug 2 is cut off when the inner plug 2 is opened at the score 7, that is, when the inner plug 2 is first opened. (See FIGS. 1, 5 (d), etc.).

  The upper lid 3 is an integrally molded product made of resin and includes a side wall 3a and an upper end wall 3b. The side wall 3a and the upper end wall 3b form a dome-like appearance and protect the inner plug 2 from an external environment such as dust and water. The side surface portion 3 a has a female screw 11 a that is a screwing portion, and is screwed into a male screw 11 b formed on the side surface of the container body 50. As a result, the upper lid 3 moves forward and backward along the axial center of the container body 50 toward the back of the container body 50, enabling opening and opening operations, and the container body 50. It can be attached and detached.

  The upper lid 3 includes an annular protrusion 9 extending downward from the lower surface of the upper end wall 3b. 4A, the inner peripheral surface 9a of the projecting portion 9 is formed in parallel with the rotation axis of the upper lid 3 extending vertically in the drawing, and the outer peripheral surface 9b becomes closer to the lower end. It is formed in a tapered shape so as to be thin. Thereby, the lower end part of the protrusion part 9 becomes easy to deform | transform. An annular bulging portion 9c for engaging with the flange 4d at the time of opening is formed at the intermediate portion in the height direction of the inner peripheral surface 9a, and the expanded portion 4e of the flange 4d is located above the bulging portion 9c. An annular holding groove 9d is formed. That is, the upper end wall 3b functions as a holding portion that can hold the separating portion 4 reliably by including the annular bulging portion 9c and the annular holding groove 9d.

  Hereinafter, the opening operation of the lidded container 100 by the cap 1 will be described with reference to FIGS. 5 and 6.

  First, as shown to Fig.5 (a), the upper cover 3 exists in the reference | standard position before rotation operation of the screwing part 11a. In this state, the cap 1 is in a sealed state, and as shown in FIG. 6 (a), the peripheral surface of the flange 4d of the inner plug 2 protrudes from the upper lid 3 with the expanded portion 4e bent. It is in contact with the inner peripheral surface 9 a of the portion 9. At this time, a space SP in which air is accumulated is defined by the protrusion 9 and the flange 4d.

  When the upper lid 3 is rotated from this state in the tightening direction, that is, clockwise, as shown in FIG. 5B, the protruding portion 9 is lowered accordingly. At that time, as shown in FIG. 6B, the flange 4d slides with respect to the inner peripheral surface of the protruding portion 9c in a state where the expanded portion 4c is bent. At this time, the air accumulated in the space SP smoothly passes through the plurality of notches 4f provided in the extended portion 4e extending outwardly of the flange 4d, and generates almost no sound of air leakage.

  The outer extension of the flange 4d extends beyond the bulging portion 9c so that the flange 4d is accommodated in the inner peripheral surface 9a at the back, and the bulging portion 9c engages with the lower peripheral edge of the flange 4d. In this state, as shown in FIG. 6C, the flange 4d is locked from the lower surface by the bulging portion 9c, and the expanded portion 4e is received in the holding groove 9d and locked in the protruding portion 9. . Thereby, the separation part 4 is securely held in the protruding part 9 of the upper lid 3.

  When the upper lid 3 is further tightened, the separating portion 4 of the inner plug 2 is pushed downward by the upper end wall 3b of the upper lid 3 as shown in FIG. Then, the score 7 is cut with a low plosive sound, and the separating portion 4 is inserted into the tubular portion 6. That is, the separation part 4 is separated from the main body part 20 and can be detached from the cylindrical part 6 of the main body part 20.

  In this state, as shown in FIG. 5 (d), when the upper lid 3 is rotated in the loosening direction, that is, counterclockwise, the separating portion 4 is detached from the cylindrical portion 6 of the inner plug 2 along with the upper lid 3. As described above, the inner plug 2 is opened, and the liquid in the container body 50 can be poured out from the formed opening OP. Further, the upper lid 3 is detachable from the container body 50.

  When the female screw 11a of the upper lid 3 is re-engaged with the male screw 11b of the container main body 50 and the upper lid 3 is rotated in the clockwise direction, the separating portion 4 held by the upper lid 3 by the above-described opening becomes the inner plug 2 The opening OP of the main body side cylindrical portion 6 is fitted, and the opening OP is closed. This state is the same as in FIG. At this time, the separation unit 4 functions as an inner seal plug.

  As described above, in the present embodiment, since the separating portion 4 is cut off from the inner plug 2 in the opening operation with the cap 1, the cap 1 accompanying the rotation operation of the upper lid 3 serving as the upper lid has a relatively simple structure. Opening, that is, opening of the inner plug 2 is enabled, and the separated separation portion 4 is held by the upper lid 3.

  In the present embodiment, when the flange 4d of the inner plug 2 slides on the inner peripheral surface 9a of the protrusion 9 of the upper lid 3, the air in the space SP defined by the protrusion 9 and the flange 4d is changed. The expanded portion 4e is gradually extracted from the notch 4f. This is because when the air in the space defined by the protrusion 9 and the flange 4d is compressed while the peripheral surface of the flange 4d is in close contact with the inner peripheral surface 9a of the protrusion 9, the flange 4d moves. In addition to resistance, there may be a case in which the compressed air suddenly ejects from between the inner peripheral surface 9a of the protrusion 9 and the peripheral surface of the flange 4d. This is prevented by the notch 4f that communicates. Therefore, the width and thickness of the extended portion 4e and the size and number of the notches 4f are appropriately set depending on the material and size of the protruding portion 9 and the flange 4d.

  In the present embodiment, the inner plug 2 is a stopper type composite cap, and the contents are sealed together with the container body 50 in an airtight or liquid tight manner by the stopper using the fitting portion 5. The liquid as the contents of the container main body 50 can be stored not only by the stopper but also by, for example, screw-type sealing or welding.

  In the above embodiment, the inner plug 2 is shown in which the separation portion side tubular portion 4b is offset inward by the thickness of the main body portion side tubular portion 6 from the main body portion side tubular portion 6. The separation portion side cylindrical portion 4b may be offset outward from the main body side cylindrical portion 6 by the thickness of the main body side cylindrical portion 6.

  Moreover, in the said embodiment, the seal | sticker which is a cyclic | annular low protrusion can be provided in at least one of the outer peripheral surface of the isolation | separation part side cylindrical part 4b, and the internal peripheral surface of the main body side cylindrical part 6. FIG. By providing such a seal, a reliable liquid-tight state can be ensured between the separation portion side tubular portion 4 b and the main body side tubular portion 6. That is, it is possible to reliably prevent liquid leakage during reuse that is repeated after the first opening.

  In addition, in the said embodiment, although the horizontal cross section has comprised the isolation | separation part side cylindrical part 4b of the isolation | separation part 4, and the main body side cylindrical part 6 of the main-body part 20, they rotate relatively. There is no such thing as sliding in the vertical direction. Therefore, those horizontal cross-sectional shapes may be polygonal or non-circular.

[Second Embodiment]
Hereinafter, a cap and a container with a lid according to a second embodiment of the present invention will be described. Note that the cap and the like of the second embodiment is a modification of the cap and the like of the first embodiment, and parts not specifically described are the same as those of the cap 1 and the lidded container 100 of the first embodiment. .

  As shown in FIG. 7, the upper lid 103 of the cap 101 according to the second embodiment includes a virgin ring BR at the lower end of the side wall 103a. The virgin ring BR is an annular band, and cuts are formed at appropriate locations. The upper lid 103 is screwed into the mouth portion 150a of the container body 150, and the lower end of the virgin ring BR is positioned in the vicinity of the bulging portion 151 formed on the peripheral surface of the mouth portion 150a of the container body 150.

  In the upper lid 103, when the separation portion 4 of the inner plug 102 is separated from the main body portion 120, first, the upper lid 103 is rotated in the tightening direction, that is, clockwise. Then, as shown in FIG. 8, the virgin ring BR is expanded by the bulging portion 151 of the container body 150, and is detached from the side wall 103a. When the upper lid 103 is further rotated clockwise, the separating portion 4 is separated from the main body portion 120 and is held in the protruding portion 9.

[Third Embodiment]
Hereinafter, a cap and a container with a lid according to a third embodiment of the present invention will be described. Note that the cap and the like of the third embodiment is a modification of the cap and the like of the first embodiment, and parts not specifically described are the same as those of the cap 1 and the lidded container 100 of the first embodiment. .

  As shown in FIGS. 9A to 9D, the upper lid 203 of the cap 201 according to the third embodiment is of a hinge cap type, and is an attachment portion 207 that engages with the mouth portion 250 a of the container main body 250. And an opening / closing lid 208 coupled to the attachment portion 207 via the hinge portion HG. The attachment portion 207, which is a part of the upper lid 203, has a protrusion TP at least at one location of the enlarged diameter portion of the inner wall of the lower end portion. On the other hand, the container main body 250 has the step part BP intermittently on the circumference below the female screw 11a of the mouth part 250a. And since the projection part TP will be on the step part BP, the internal thread 11a of the opening part 250a and the external thread 11b of the attachment part 207 are not screwed in deeply.

  Hereinafter, the operation of opening the inner plug 202 with the upper lid 203 will be described. FIG. 9B shows that the protrusion TP and the stepped portion BP provided intermittently on the circumference do not overlap by twisting the upper lid 203 (for example, half-turning) in order to open the inner plug 202. Thus, the state where the alignment is performed is shown. In this case, the entire upper lid 203 can be pushed to a position where the stepped contact portion WA provided on the inner wall of the mounting portion 207 of the upper lid 203 is on the stepped portion BP. That is, it is possible to form the opening OP (see FIG. 9D) by separating the separation portion 4 from the inner plug 202 by the rotation operation of the upper lid 203. As described above, the protrusion TP and the stepped portion BP are aligned by the rotational operation of the upper lid 203, and pushed in to form the opening OP by pushing forward toward the back of the container body 250. Functions as a means. Further, the projecting portion TP and the stepped portion BP can prevent the inner plug from being unintentionally opened, and can relatively easily and reliably form the opening portion OP by the rotation operation and the pushing operation.

  FIG. 9C shows a state where the upper lid 203 is pushed in. By this pushing operation, the separation part 4 of the inner plug 202 is separated from the main body part 220. More specifically, the protrusion 9 is fitted into the flange 4d of the inner plug 202 by the pushing operation, and the claw 209a functioning similarly to the protrusion 9c of the protrusion 9 shown in FIG. Further, the flange 4d is pushed downward by the upper end wall 203b of the upper lid 203. As described above, the separation part 4 of the inner plug 202 is separated from the main body part 220. At this time, the attachment portion 207 is engaged with the container main body 250. Further, the separation portion 4 is held in the protruding portion 9 of the upper lid 203. Although illustration is omitted here, a thin extension part similar to the extension part 4e shown in FIG. 3B is formed on the outer periphery of the flange 4d of the separation part 4.

  After the opening operation of the inner plug 202 is performed as described above, the open / close lid 208 covers the opening OP of the cap 201 as shown in FIG. 9C, and FIG. 9D shows. Thus, the cap 201 or the upper lid 203 can be opened and closed by taking the open state in which the opening OP is opened. At this time, the separation part 4 cut off during the opening operation of the inner plug 202 is fitted to the protruding part 9 of the opening / closing lid 208 and is thus held by the opening / closing lid 208. Therefore, the separation unit 4 functions as an inner sealing plug that can close the opening OP after the inner plug 202 is opened.

[Fourth Embodiment]
Hereinafter, a cap and a container with a lid according to a fourth embodiment of the present invention will be described. Note that the cap and the like of the fourth embodiment is a modification of the cap and the like of the first embodiment, and parts not specifically described are the same as those of the cap 1 and the lidded container 100 of the first embodiment. .

  As shown in FIG. 10, a cap 301 according to the fourth embodiment is formed of resin, and an inner plug 302 and an upper lid 303 are integrally formed as one article.

  The upper lid 303 that is an upper lid is of a hinge cap type, and has an attachment portion 307 that engages with the inner plug 302 and an opening / closing lid 308 that is connected to the attachment portion 307 via the hinge portion HG.

  Here, the opening / closing lid 308 is connected to the attachment portion 307 via the hinge portion HG, so that when the cap 301 is used after the opening operation of the inner plug 302 described later is performed, that is, after the first opening. When opening and closing the reuse, it is possible to maintain a closed state that covers the opening and an open state that opens the opening.

  Further, in this embodiment, the protrusion 307a extending laterally from the inner peripheral surface of the mounting portion 307 of the upper lid 303 and the outer periphery of the upper end portion of the fitting portion 305 of the inner plug 302 are connected by a thin score SC2. Has been. As a result, the inner plug 302 and the upper lid 303 are integrally molded as one article. As will be described later, the attachment portion 307 is separated from the fitting portion 305 of the inner plug 302 along the thin score SC2 in accordance with the rotation operation of the female screw 11a with respect to the male screw 11b.

  In the cap 301 configured as described above, as will be described in detail later, the separation portion 4 can be separated from the main body side tubular portion 306 by the upper end wall 303b of the upper lid 303 capable of pressing the separation portion 4 of the inner plug 302. it can. Further, the separating portion 4 can be held on the upper lid 303 side by the protruding portion 309 formed on the upper lid 303 and the flange 4d formed on the separating portion 4, and the inner plug 302 is opened while the upper lid 303 is rotated. Accordingly, the upper lid 303 is advanced toward the back of the container main body 350, and the separation portion 4 can be separated from the inner plug 302 to form an opening.

  FIG. 11A and FIG. 11B are diagrams showing the opening operation of the inner plug 302. Hereinafter, the opening operation of the inner plug 302 will be described with reference to FIGS. 11 (a) and 11 (b).

  In order to detach the separating portion 4 of the inner plug 302 from the main body portion 320, first, the upper lid 303 is rotated in the tightening direction, that is, clockwise. Then, as shown in FIG. 11A, the virgin ring BR is expanded by the bulging portion 351 of the container body 350 and detached from the side wall 303a. Further, the protruding portion 309 is fitted to the flange 4d of the inner plug 302. That is, the separation unit 4 is held on the upper lid 303 side.

  Further, when the upper lid 303 is tightened, the separation portion 4 of the inner plug 302 is pushed downward by the upper end wall 303 b of the upper lid 303. Then, the score SC <b> 1 is cut, and the separation unit 4 is inserted into the cylindrical part 306 of the main body part 320. That is, the separation unit 4 is separated from the main body unit 320.

  Further, as the upper lid 303 is rotated in the tightening direction, the score SC2 is cut, and the attachment portion 307 of the upper lid 303 is separated from the inner plug 302. At this time, the attachment portion 307 is engaged with the container main body 350 when the female screw 11a and the male screw 11b are screwed together.

  After the opening operation of the inner plug 302 is performed as described above, the open / close lid 308 covers the opening OP of the cap 301 as shown in FIG. 11A, and FIG. Thus, the cap 301 or the upper lid 303 can be opened and closed by taking the open state in which the opening OP is opened. At this time, the separating portion 4 separated during the opening operation of the inner plug 302 is fitted to the protruding portion 309 of the opening / closing lid 308 and is thus held by the opening / closing lid 308. Although illustration is omitted here, a thin extension part similar to the extension part 4e shown in FIG. 3B is formed on the outer periphery of the flange 4d of the separation part 4.

[Fifth Embodiment]
Hereinafter, a cap and a lidded container according to a fifth embodiment of the present invention will be described. Note that the cap and the like of the fifth embodiment are obtained by modifying the cap and the like of the first embodiment, and parts not specifically described are the same as those of the cap 1 and the lidded container 100 of the first embodiment. .

  As shown in FIG. 12, the ventilation extending along the upper and lower axial directions (in a direction perpendicular to the surface of the flange 4d shown in FIG. 1 and the like) at one place on the inner peripheral surface of the protrusion 9 extending from the upper lid 3. A groove 9x is formed. The ventilation groove 9x has the same function as the notch 4f formed in the expanded portion 4e of the flange 4d shown in FIG. 3A, and is a space defined by the protrusion 9 and the flange 4d. It is provided to remove the air inside. The ventilation groove 9x is not limited to one place on the inner peripheral surface of the protrusion 9, and can be formed at a plurality of places.

  Although the present invention has been described based on the above embodiments, the present invention is not limited to the above embodiments. For example, in the first embodiment, as shown in FIG. 3A, the expanded portion 4e provided on the flange 4d of the separating portion 4 is formed on the same plane. However, as shown in FIG. The portions 4e-1, 4e-2, 4e-3 constituting the installation portion 4e can be arranged at different height positions with respect to the direction of the axis AX. At this time, the notch 4f is formed in an overlapping portion of the respective parts 4e-1, 4e-2, 4e-3. Further, as shown in FIG. 14, an additional expanding portion 504e can be provided at a different height position with respect to the direction of the axis AX with respect to the expanding portion 4e. In this case, the extended portion 4e and the extended portion 504e are partially overlapped when viewed from the direction of the axis AX. Furthermore, as shown in FIG. 15, the expanded portion 604e can be changed to different heights in the circumferential position.

  Moreover, the expansion part 4e formed in the flange 4d of the separation part 4 shown in FIG. 3B or the like can be formed over the entire circumference without providing the notch 4f. Also in this case, the air in the space SP defined by the protruding portion 9 and the flange 4d can be leaked with a small resistance due to the flexibility of the expanded portion 4e.

  Further, the flange 4d is folded inward on the upper side, a cylindrical portion is formed on the upper portion of the flange 4d, and a flange or flange having a smaller diameter than the cylindrical portion of the flange 4d is provided on the outer periphery of the protruding portion 9, thereby 4d, the protrusion 9, and the inside and outside can be interchanged.

  Further, the outer periphery of the flange 4d of the separating portion 4 is not limited to a circle, but may be a polygon such as a hexagon or an octagon. The inner side surface of the protruding portion 9 extending from the upper lid 3 is not limited to a circle but is a hexagon, 8 It can be a polygon such as a square. When the outer periphery of the flange 4d of the separation portion 4 is a polygon, the expanded portion 4e formed on the outer periphery of the flange 4d extends in a polygonal side shape.

DESCRIPTION OF SYMBOLS 1 ... Cap, 2 ... Inner plug, 3 ... Top lid, 3a ... Side wall, 3b ... Upper end wall, 4 ... Separation part, 4b ... Separation part side cylindrical part, 4c ... Ceiling wall, 4d ... Flange, 4e ... Expansion Part, 4f ... notch, 5 ... fitting part, 5a ... outer cylinder part, 5b ... inner cylinder part, 5e ... horizontal part, 5d ... annular recess, 5e ... annular projection, 5f ... annular rib, 6 ... main body side cylinder 6a ... lip, 7 ... score, 9 ... projection, 9a ... inner peripheral surface, 9b ... outer peripheral surface, 9c ... bulge, 9d ... notch, 11a ... female screw, 11b ... male screw, 20 ... Main part 50: Container body 50a ... Mouth part 100 ... Container with lid, OP ... Opening

Claims (12)

Forming a sealed space for enclosing contents together with the container body, and an inner plug having a separation part for forming an opening in the sealed space;
A cap comprising an upper lid having a holding means for separating the separating portion from the inner plug to form the opening and holding the separating portion when separating the separating portion;
The inner plug has an upper opening that is closed by the separation part, and has a main body part that is connected to the separation part at the upper opening and that is locked to the container body at the periphery.
The holding means includes an annular projecting portion that extends downward from the lower surface of the upper end wall of the upper lid and is engageable with a flange formed on an upper portion of the separating portion,
The said flange has a thin expansion part extended from the periphery of the said flange, The cap characterized by the above-mentioned.   The upper lid engages the projecting portion with the flange of the separation portion by turning the upper lid in the direction of tightening the upper lid during the opening operation for forming the opening, and the separation portion is connected to the inner plug. 2. The cap according to claim 1, wherein the cap is held by the projecting portion and moved together with the separating portion during an opening / closing operation after the opening is formed. The main body has a main body side cylindrical portion defining an upper opening,
The cap according to claim 2, wherein the separation portion has a separation portion side tubular portion that is offset to either the inner diameter side or the outer diameter side with respect to the main body side tubular portion.   The cap according to any one of claims 1 to 3, wherein the annular protrusion extends substantially parallel to the flange along a peripheral edge of the flange.   5. The cap according to claim 4, wherein the thinned extending portion has a notch penetrating in a direction perpendicular to a surface in which the flange extends.   The cap according to claim 5, wherein the notches are formed at substantially equal intervals at a plurality of locations over the entire circumference of the extended portion.   The projecting portion of the upper lid is located on the inner peripheral surface in a state where the flange of the separating portion is accommodated in the projecting portion, and is positioned at the lower peripheral lower portion of the separating portion to lock the separating portion. It has a bulging part, The cap as described in any one of Claim 1-6 characterized by the above-mentioned.   The projecting portion of the upper lid has an annular holding groove for accommodating the thinly widened portion of the flange in a state where the flange of the separating portion is accommodated in the projecting portion on an inner peripheral surface. The cap according to any one of claims 1 to 7.   The cap according to any one of claims 1 to 8, wherein the projecting portion of the upper lid has a ventilation groove extending in a direction perpendicular to the surface of the flange on the inner peripheral surface.   The cap according to any one of claims 1 to 9, wherein the upper lid is coupled to the opening of the container body by screwing.   The said upper cover is equipped with the attaching part with which the opening part of the said container main body is mounted | worn, and the opening-and-closing lid | cover which is connected to the said attaching part via a hinge and which has the said annular protrusion part in the lower surface. Item 11. The cap according to any one of Items 1 to 10.   A container with a lid, comprising: a container main body that stores a liquid as a content; and a cap according to any one of claims 1 to 11 provided at a mouth of the container main body.

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