JP6469478B2 - Caps and containers with caps - Google Patents

Description

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

  As a bottle-shaped container cap, a combination of a sealing inner stopper having a pull ring attached to an opening of a container and an upper lid screwed into the inner stopper and closing the stopper is generally known. (See Patent Document 1).

  In such a cap, the inner plug is opened by pulling the pull ring of the inner plug obliquely in the opening direction after opening the upper lid.

  However, in a cap using such a pull ring, the pull ring may be broken at an easily cut portion such as a weld when the inner plug is opened, which may prevent the opening.

  Further, for example, when the score portion is thickened to prevent pinholes in the score portion, the opening strength of the inner plug increases, and opening by a user such as a child or an elderly person becomes difficult.

  In addition, if the size of the ring part of the pull ring is large enough to accommodate various users' fingers, it becomes difficult to use such a pull ring as a small-diameter inner plug, and the pull ring is enlarged. As a result, the overall design of the cap is also limited.

  Also, the pull ring remaining after opening becomes dust, and leaving it normally detracts from the aesthetic appearance of the surrounding environment, so that this disposal work is required even during meals and cooking, which is complicated.

  Therefore, it is a cap that does not use a pull ring and can be opened only by rotating the upper lid, and can also be used for small-diameter inner plugs, without restricting the design of the cap and opening. The thing which does not generate | occur | produce garbage later is proposed (refer patent document 2).

  In the cap which can open the inner plug by the rotation of the upper lid, the inner plug attached to the container seals the container in the initial state. Then, by rotating the upper lid, the inner lid upper lid, which is a part of the inner stopper, is separated from the inner stopper main body, and the separated portion is fixed to the upper lid to open the inner stopper and generate dust after opening. There is nothing to do.

JP-A-8-58816 JP 2012-210982 A

  By the way, in the cap which opens the inside plug by the above-described rotation operation of the upper lid, the contents of the container adhere to the inner lid upper lid and the inner peripheral portion of the upper lid when the cap is closed again after the opening of the inner lid. Sometimes.

  The contents attached to these parts hang down from the outer edge of the inner plug to the screwed portion between the upper lid and the container main body, or the upper lid and the inner plug main body, and the screwed portion is soiled. May become difficult to open and close the lid due to drying and hardening.

  Therefore, the present invention has been devised in view of the above-described problems, and the contents attached to the inner stopper upper lid and the inner peripheral portion of the upper lid after the opening of the inner plug are the upper lid and the container main body, or the upper lid and the middle. It is an object of the present invention to provide a cap and a container with a cap that can prevent the cap body from hanging down to a screwed portion.

  In order to solve the above-described problems, the present inventor is that the contents attached to the inner peripheral portion of the inner stopper upper lid or the upper lid after the opening of the inner stopper is the screwed portion between the upper lid and the container main body or the upper lid and the inner plug main body. Invented a cap and a container with a cap that can be prevented from sagging and spreading.

A cap according to a first aspect of the present invention is a cap comprising an inner stopper attached to an opening of a container body and a cylindrical upper lid attached to the outside of the inner stopper, wherein the inner stopper is an opening of the container body. An inner plug body that is attached to the inner part, a separation part that is connected via a score at the central part of the inner plug body, and that is provided with a separation part side locking part, and a circumferential groove part that is formed around the inner plug body The upper lid is provided with an upper lid main body, and an upper lid side locking portion that is provided upright from a base surface inside the upper lid main body and is engageable with the separation portion side locking portion of the separation portion; A wall provided between the upper lid side locking portion and the inner peripheral wall of the upper lid body and facing the circumferential groove portion, and provided between the upper lid side locking portion and the wall. It includes a large-diameter cylindrical portion that is, wherein the separation unit, with the upper cover-side engaging portion, the large The Rukoto to have a gap can be inserted shape between the cylindrical portion and said.

  The cap according to a second aspect of the present invention is characterized in that, in the first aspect, the wall abuts against the inner peripheral wall on the outer side in the radial direction of the peripheral groove portion.

  The cap according to a third aspect is characterized in that, in the first aspect, the wall contacts the inner peripheral wall on the inner side in the radial direction of the peripheral groove portion.

  A cap according to a fourth invention is the cap according to any one of the first to third inventions, wherein an inner screw is provided on an inner peripheral surface of the peripheral wall portion of the upper lid, and an inner screw is provided on the outer peripheral surface of the inner plug main body. An external screw that engages with the screw is provided.

  A cap according to a fifth invention is the cap according to any one of the first to third inventions, wherein an outer thread is provided on an outer peripheral surface of the container body, and an outer peripheral surface of the peripheral wall portion of the upper lid is provided on the outer peripheral surface. An internal screw that can be screwed with the screw is provided.

  A cap according to a sixth aspect of the present invention is the cap according to the fourth or fifth aspect, wherein when the lead of the inner screw is L, the number of threads of the inner screw is N, and the pitch of the inner screw is P, the wall and the circumference The contact distance between the groove and the inner peripheral wall is a contact distance ≧ L × (1/2), and a contact distance ≧ N × P × (1/2).

  A container with a cap according to a seventh aspect of the present invention is a container with a cap provided with a cylindrical container body having an opening and a cap attached to the container body so as to open and close the container body. The cap is a cap according to any one of the first to sixth inventions.

  According to the present invention having the above-described configuration, the contents attached to the inner lid upper lid and the inner peripheral portion of the upper lid after the opening of the inner plug hang down to the screwed portion between the upper lid and the container main body or the upper lid and the inner plug main body. It becomes possible to prevent spreading.

It is a disassembled perspective view of the container with a cap concerning the embodiment of the present invention. It is an exploded sectional view of a container with a cap concerning an embodiment of the present invention. It is sectional drawing which shows the state which assembled the container with a cap which concerns on embodiment of this invention. It is the elements on larger scale which expanded and showed the A section in FIG. It is sectional drawing which shows the state which removed the upper cover of the container with a cap which concerns on embodiment of this invention. It is sectional drawing which shows the state which assembled the container with a cap which concerns on the 1st modification of this invention. It is sectional drawing which shows the state which assembled the container with a cap which concerns on the 2nd modification of this invention.

  Hereinafter, the container with a cap which concerns on embodiment of this invention is demonstrated in detail.

  FIG. 1 is an exploded perspective view of a container 1 with a cap according to an embodiment of the present invention. FIG. 2 is an exploded cross-sectional view of the capped container 1 according to the embodiment of the present invention. FIG. 3 is a cross-sectional view showing a state in which the cap-equipped container 1 according to the embodiment of the present invention is assembled. FIG. 4 is a partially enlarged cross-sectional view showing an A portion in FIG. 3 in an enlarged manner.

  A container 1 with a cap according to an embodiment of the present invention includes a container body 2 and a cap 3 attached to the opening 21 of the container body 2.

  The container body 2 is a bottle-shaped container having an opening 21 and can be made of various materials such as resin and glass. In the following description, the container body 2 will be described by taking as an example the case where liquids such as seasonings and beverages are enclosed as contents, but the present invention is not limited to this and is in powder form. Any contents, such as a thing and a granular material, may be enclosed.

  The cap 3 is a resin molded product, and includes an inner plug 4 attached to the opening 21 of the container body 2 and an upper lid 5 screwed and attached to the inner plug 4 so as to cover the outer side of the inner plug 4. It is configured.

  The inner plug 4 is an integrally molded product made of a resin that can be elastically deformed, and includes an inner plug main body 44 and a separating portion 46 connected through a thin score 45.

  The inner plug main body 44 has a tapered spout 47 on the upper side (above the paper surface in FIGS. 1 to 4), and a cylinder having a lower inner peripheral wall 41 and a lower outer peripheral wall 42 on the lower side (below the paper surface in FIGS. 1 to 4). Shaped member.

  The tapered shape of the spout 47 is a shape for facilitating pouring the contents in the container body 2 after opening, but in the present invention, it is not necessary to limit to this shape, and other shapes such as a cylindrical shape may be used. There may be. The outer peripheral edge portion of the upper end of the spout 47 is an acutely deformable sharp end portion 471 that protrudes obliquely upward toward the outside in the radial direction.

  An outer peripheral wall 482 erected upward is formed on the outer peripheral edge of the inner plug main body 44 in the radial direction. The outer peripheral wall 482 is a wall body formed in an annular shape at the outer peripheral edge of the inner plug main body 44, and the outer peripheral wall 482 and the outer peripheral surface 481 of the spout 47 have an annular shape at the peripheral edge of the inner plug main body 44. A circumferential groove 48 is formed.

  On the outer peripheral surface of the outer peripheral wall 482, an inner plug-side ridge portion 43 that is a screw thread to be screwed with the upper lid 5 is formed in a spiral shape along the outer peripheral surface.

  The lower inner peripheral wall 41 and the lower outer peripheral wall 42 are portions used for attaching the inner plug main body 44 to the opening 21 of the container main body 2, and are fitted and fixed to the opening 21.

  In addition, a separating portion 46 is connected to the inner portion at the tip of the inner plug main body 44 via a score 45.

  The separation part 46 is a cylindrical member formed by a disk-like base part 461 and a peripheral wall part 462 erected vertically from a peripheral part of the base part 461.

  On the peripheral wall portion 462, a separating portion-side ridge portion 463 serving as an internal screw along the inner peripheral surface is formed in a spiral shape with the axial direction of the separating portion 46 as the center. The direction of the spiral of the separating portion side protrusion 463 is formed in the direction opposite to the direction of the spiral of the inner plug side protrusion 43.

  In the present specification, the inner screw means a screw whose thread is directed in the axial direction of the cap-equipped container 1, and the outer screw means a screw having the opposite direction.

  The peripheral wall portion 462 of the separation portion 46 has a shape that can be inserted into a gap S <b> 2 between a small-diameter cylindrical portion 521 and a large-diameter cylindrical portion 524 described later of the upper lid 5.

  The upper lid 5 is an integrally molded product made of resin, and is a cylindrical lid that is screwed onto the outside of the inner plug 4. The upper lid 5 includes an upper lid body 51 formed by the upper lid base portion 52 and the upper lid peripheral wall portion 53, a small diameter cylindrical portion 521 erected substantially vertically from the lower surface of the upper lid base portion 52, and a large diameter cylindrical portion 524. And a wall 525.

  On the upper surface of the upper lid base portion 52 (above the paper surface in FIGS. 1 to 4), an upper surface recess 551 is formed in which the cross-sectional shape parallel to the axial direction (the cross-sectional shape shown in FIGS. 1 to 4) is a gentle arc shape. ing.

  When the capped container 1 falls with the upper lid 5 side down, if the upper surface central portion of the upper lid base 52 collides with the ground, the impact is transmitted from the small-diameter cylindrical portion 521, which will be described later, to the separating portion 46, and the score 45 is given. It may be damaged.

  However, in the present embodiment, since the upper surface recess 551 is formed, the center portion of the upper surface of the upper lid base 52 does not collide with the ground when the container 1 with cap is dropped, and the score 45 is effectively damaged. Can be prevented.

  With the bottom surface of the upper lid base portion 52 (the lower side in FIG. 1 to FIG. 4) as the base surface, from the radially inner side to the outer side, the small diameter cylindrical portion 521, the large diameter cylindrical portion 524 and the wall 525 are respectively It is configured to stand vertically and concentrically from the base surface.

  The small-diameter cylindrical portion 521 is formed in a cylindrical shape with a thickness that allows elastic deformation. The small-diameter cylindrical portion 521 has a helical thread on the outer peripheral surface 522, and a small-diameter ridge portion serving as an external screw that can be screwed with the separation portion-side ridge portion 463 of the separation portion 46 that is an internal screw. 523 is formed.

  The small diameter protrusion 523 has an outer diameter smaller than the inner diameter of the peripheral wall 462 of the separation part 46 and larger than the inner diameter of the separation part side protrusion 463.

  The large-diameter cylindrical portion 524 has a cylindrical shape that can be inserted into a gap S <b> 1 formed between the inner plug main body 44 and the separation portion 46.

  The wall 525 is opposed to the peripheral groove 48 of the inner plug 4, that is, within the range of the peripheral groove 48 of the inner plug 4 in the radial direction of the upper lid 5 (between the outer peripheral wall 482 and the outer peripheral surface 481 of the spout 47). It is provided in an annular shape so as to be located at.

  The upper lid peripheral wall portion 53 is a wall body that is formed higher than the small diameter cylindrical portion 521, the large diameter cylindrical portion 524, and the wall 525. On the inner peripheral side of the upper lid peripheral wall portion 53, the upper lid side ridge portion 531, which is an internal screw that can be screwed into the inner plug side ridge portion 43, is in a direction opposite to the spiral direction of the small diameter ridge portion 523. Is formed.

  When the container body 2, the inner stopper 4 and the upper lid 5 are assembled in the state shown in FIG. 3, the opening 21 of the container body 2 is inserted between the lower inner peripheral wall 41 and the lower outer peripheral wall 42 of the inner stopper 4. The inner plug 4 and the upper lid 5 are screwed together.

  The inner plug 4 and the upper lid 5 are screwed together by screwing the inner plug-side protrusion 43 of the inner plug 4 and the upper lid-side protrusion 531 of the upper lid 5.

  Here, the spiral direction of the inner plug side protrusion 43 and the upper lid side protrusion 531 is opposite to the spiral direction of the separation part side protrusion 463 and the small diameter protrusion 523.

  Therefore, even if the upper lid 5 is rotated so that the inner plug 4 and the upper lid 5 are screwed together, the separating portion side ridge portion 463 and the small diameter ridge portion 523 cannot be screwed together.

  Therefore, the insertion of the small diameter cylindrical portion 521 into the separation portion 46 is performed by the small diameter cylindrical portion 521 elastically deforming radially inward and the small diameter protrusion 523 getting over the separation portion side protrusion 463.

  Specifically, as shown in FIGS. 3 and 4, the small-diameter ridge 523 of the small-diameter cylindrical portion 521 and the separation-unit-side ridge 463 of the separation portion 46 remove the small-diameter cylindrical portion 521 from the separation portion 46. It is a projection having a shape that makes it easier to push the small-diameter cylindrical portion 521 into the separation portion 46 than to pull it out.

  That is, the small diameter protrusion 523 has a lower surface 523a that is a tapered surface and a top surface 523b that is a surface perpendicular to the tube axis direction in a cross-sectional shape parallel to the tube axis direction of the small diameter cylindrical portion 521. ing.

  On the other hand, the separating portion-side protrusion 463 has a cross-sectional shape parallel to the tube axis direction of the separating portion 46, and an upper surface 463b thereof is a tapered surface, and a lower surface 463a is a surface perpendicular to the tube axis direction. It has become.

  Therefore, when the small diameter cylindrical portion 521 is inserted into the separating portion 46, the tapered surface formed on the lower surface 523a of the small diameter protruding portion 523 and the tapered surface 463b formed on the upper surface of the separating portion side protruding portion 463. Can serve as a guide and facilitate the insertion.

  Then, the progress of the small diameter cylindrical portion 521 into the separation portion 46 is stopped when the tip portion thereof is in contact with the base portion 461 of the separation portion 46.

  On the other hand, after the small-diameter cylindrical portion 521 is inserted into the separating portion 46, the upper surface 523b of the small-diameter protruding portion 523 and the lower surface 463a of the separating portion-side protruding portion 463 are in contact with each other in the radial direction. However, unlike the above-described contact between the tapered surfaces, the guide function is not achieved.

  Therefore, after the small diameter cylindrical portion 521 has completely entered the separation portion 46, the separation portion side protrusion 463 cannot get over the small diameter protrusion 523, and the small diameter protrusion 523 and the separation portion side protrusion are not provided. 463 is engaged.

  The small diameter cylindrical portion 521 inserted into the separating portion 46 is fixed by this meshing. As a result, the separation portion 46 is fixed to the upper lid 5, and the separation portion 46 can be prevented from falling off from the small diameter cylindrical portion 521.

  In a state where the contents are enclosed in the container 1 with a cap (distribution state), the inner plug 4 is attached to the container body 2 filled with the contents in an unopened state. Is in a sealed state.

  When the container 1 with a cap is used, that is, when the contents are discharged to the outside of the container body 2, the upper lid 5 is removed. When the container is used for the first time, the upper lid 5 is removed. The opening of the inner plug 4 is also performed.

  The removal of the upper lid 5 and the opening of the inner plug 4 associated therewith will be described. FIG. 5 is a cross-sectional view showing a state in which the top lid of the container with a cap according to the embodiment of the present invention is removed.

  Removal of the upper lid 5 is performed by rotating the upper lid 5 in the opening direction, that is, in the direction of loosening the screwing of the inner plug-side ridge portion 43 and the upper lid-side ridge portion 531.

  The rotation of the upper lid 5 in the opening direction is converted into an operation of separating the upper lid 5 from the container body 2 and the inner plug 4 by the inner plug-side protrusion 43 and the upper lid-side protrusion 531.

  At this time, the separation portion 46 is fixed to the small diameter cylindrical portion 521 of the upper lid 5. Further, the screwing direction of the small-diameter protruding portion 523 and the separating portion side protruding portion 463 is opposite to the screwing direction of the inner plug side protruding portion 43 and the upper lid side protruding portion 531.

  As a result, when the upper lid 5 is rotated in the direction of loosening the screwing of the inner plug-side ridge 43 and the upper lid-side ridge 531, the small-diameter ridge 523 and the separation-side ridge 463 are not screwed together. Since this acts to tighten this, the fixed state of the separating portion 46 to the small diameter cylindrical portion 521 does not loosen.

  Then, the separation portion 46 is also separated from the inner plug main body 44 by following the rotation of the upper lid 5 in the opening direction, whereby the score 45 that connects the separation portion 46 and the inner plug main body 44 is pulled and broken.

  Thus, the score 45 is broken, and the inner plug main body 44 and the separating portion 46 are separated, so that the opening 450 is opened and the inner plug 4 is opened. And it becomes possible to discharge | release the contents of the container main body 2 out of the container main body 2 by removing the upper cover 5.

  Further, when the removed upper lid 5 is rotated in the closing direction with respect to the inner plug 4 and screwed to the fully closed position, the large-diameter cylindrical portion 524 of the upper lid 5 and the separation portion 46 fixed to the upper lid 5 become the inner plug main body 44. Is inserted into the opening. The lower surface of the large diameter cylindrical portion 524 and the upper surface of the opening 450 projecting from the inner peripheral surface of the spout 47 are in contact with each other, and the outer peripheral surface of the large diameter cylindrical portion 524 contacts the inner peripheral surface of the spout 47. As a result of the contact, the opening 450 is closed.

  Further, the sharp end portion 471 of the spout 47 of the inner plug main body 44 comes into contact with the lower surface of the upper lid base portion 52 of the upper lid 5 while being elastically deformed. Due to the restoring force of the elastically deformed sharp end 471, the spout 47 formed continuously with the opening 450 is also sealed.

  By reattaching the upper lid 5 in this way, the inner plug 4 can be sealed.

  By the way, when the upper lid 5 is attached to the inner plug 4, the contents may adhere to the surface around the large-diameter cylindrical portion 524 and the lower surface of the separation portion 46 fixed to the upper lid 5.

  When the contents are attached to the large-diameter cylindrical part 524 and the separating part 46 in this way, the upper cover 5 is removed, and the contents attached are placed on a dining table or kitchen with the upper cover base 52 facing downward. An object may hang down from the large-diameter cylindrical portion 524 or the separation portion 46 to the upper lid base portion 52.

  When the upper lid 5 is attached to the inner plug 4 again in a state where the contents hang down to the upper lid peripheral wall portion 53, the contents are screwed from the upper lid peripheral wall portion 53 to the inner plug-side ridge portion 43 and the upper lid-side ridge portion 531. I get into the joint. In this way, the screwed portion becomes dirty, and the contents may dry or harden, which may hinder the opening / closing operation of the upper lid 5.

  However, in the container 1 with a cap according to the present invention, even when the contents hang down on the upper lid base 52, the contents are prevented from spreading by the walls 525 and do not spread to the upper lid peripheral wall 53. .

  When the contents attached to the upper lid 5 are attached to the inner plug 4, the contents attached to the upper lid base 52 hang down along the wall 525, but the wall 525 has the inner plug. 4, the contents hung from the wall 525 fall into the circumferential groove 48 and remain in the circumferential groove 48.

  With such a structure, it is possible to prevent the contents from entering the threaded portion of the inner plug-side protrusion 43 and the upper lid-side protrusion 531.

  In addition, when the contents are discharged from the opening 450 of the inner plug main body 44 to the outside, the contents may hang down from the opening 450 to the outer peripheral surface 481. However, even in this case, the contents enter the peripheral groove portion 48 and stay there, so that the contents can be prevented from entering the threaded portion of the inner plug side protrusion 43 and the upper lid protrusion 531.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  FIG. 6 is a cross-sectional view showing a state in which the container with a cap according to the first modification of the present invention is assembled.

  The capped container 1 ′ according to the first modification is the same as the capped container 1 according to the above-described embodiment except for the wall 525 ′.

  On the other hand, in the container 1 ′ with a cap according to the first modified example, unlike the container 1 with a cap according to the above-described embodiment, the wall 525 ′ has an outer side in the radial direction of the circumferential groove portion 48 in a state where the upper lid 5 is closed. In this mode, the inner wall 483 abuts.

  When opening the upper lid 5, users with weak gripping force hold the upper lid 5 and the container main body 2 with their respective hands so that the axis direction of the container 1 ′ with cap is oriented horizontally so that the upper lid 5 can be easily opened. The upper lid 5 may be rotated.

  When the top lid 5 is loosened with the cap-equipped container 1 ′ in a horizontal state, if the contact between the wall 525 ′ and the inner peripheral wall of the circumferential groove 48 disappears, the contents will protrude from the opening 450 into the inner plug side. It flows between the strip 43 and the upper lid-side protruding strip 531.

  On the other hand, due to structural limitations on the wrist of the user, it is difficult to remove the upper lid 5 while keeping the cap-equipped container 1 ′ in the horizontal direction, and the upper lid is raised while gradually raising the cap-equipped container 1 ′ to a vertical state. By performing the removing operation 5, the operation can be easily performed. In general, the rotation angle of the upper lid 5 is about 180 degrees until the posture of the capped container 1 ′ is horizontal to vertical.

  Therefore, in the present modification, utilizing the user's properties, the inner plug-side ridge portion is set so that the rotation angle of the upper lid 5 is 180 degrees or more from the fully closed state until the upper lid 5 is completely removed. 43 and the upper lid side ridge portion 531 are designed, and the wall 525 ′ and the inner circumferential wall of the circumferential groove portion 48 are kept in contact with each other until the upper lid 5 is rotated up to 180 degrees.

  Specifically, in the present modification, the height of the wall 525 ′ is such that when the lead for the inner plug side protrusion 43, which is an internal thread, is L, the number of threads is N, and the pitch is P. The contact distance between the wall 525 ′ and the inner peripheral wall of the circumferential groove 48 is designed so that the contact distance ≧ L × (1/2) and the contact distance ≧ N × P × (1/2). Has been.

  The lead is a length that relatively moves in the axial direction when the screw portion makes one rotation, and the pitch is a distance between the screw threads (between adjacent inner plug-side protrusions 43).

  Since the wall 525 ′ is designed in this way, the wall 525 ′ and the inner peripheral wall of the circumferential groove 48 can be kept in contact until the upper lid 5 is rotated 180 degrees from the fully closed state.

  Thereby, even when the operation of opening the upper lid 5 is started from a state in which the container 1 ′ with cap is horizontally held, the content flows between the inner plug-side ridge portion 43 and the upper lid-side ridge portion 531. , And the contents can be effectively prevented from spilling as soon as the lid is opened.

  FIG. 7 is a cross-sectional view showing a state where the cap-equipped container 10 according to the second modification of the present invention is assembled.

  In the container 10 with a cap according to the second modification shown in FIG. 7, the wall 525 is in contact with the inner peripheral wall on the inner side in the radial direction of the circumferential groove 48, unlike the container 1 ′ with the cap according to the first modification. . Except this point, the present embodiment is the same as the above-described embodiment and the first modification.

  Also in the container 10 with a cap according to the second modification, the height of the wall 525 is about the inner plug side protrusion 43 which is an inner screw, when the lead is L, the number of threads is N, and the pitch is P, The contact distance between the wall 525 and the inner peripheral wall of the peripheral groove portion 48 is designed so that the contact distance ≧ L × (1/2) and the contact distance ≧ N × P × (1/2). Has been.

  Since the wall 525 is designed in this way, the wall 525 and the inner peripheral wall of the circumferential groove 48 can be kept in contact until the upper lid 5 is rotated 180 degrees from the fully closed state.

  And after rotating 180 degrees, the container 10 with the cap becomes vertical, so that the opening of the upper lid 5 further proceeds, and even if the wall 525 does not come into contact with the inner peripheral wall of the peripheral groove 48, the contents remain It stays in the circumferential groove 48 and does not flow between the inner plug side protrusion 43 and the upper lid side protrusion 531.

  Thereby, even when the operation of opening the upper lid 5 is started from the state where the cap-equipped container 10 is held horizontally, the contents flow between the inner plug-side ridge portion 43 and the upper lid-side ridge portion 531. It can be effectively prevented.

  Further, the cap-equipped container 10 according to the second modified example has the wall 525 provided on the inner side in the radial direction of the upper lid 5 as compared with the capped container 1 ′ according to the first modified example. The space between the wall 47 and the wall 525 is narrowed, and the amount of contents spilled into the cap can be reduced.

  In the embodiment and each modification described above, the inside of the container body 2 is hermetically sealed by screwing the inner plug 4 attached to the container body 2 and the upper lid 5. However, the present invention is not limited to this, and a spiral protrusion is provided on the outer peripheral surface of the container body 2, and the upper protrusion is formed by screwing the protrusion and the spiral protrusion provided on the inner peripheral surface of the upper lid 5. It is good also as an aspect to which 5 is attached.

  Thus, even if the container body 2 and the upper lid 5 are screwed together, the present invention can be applied and the same effects as described above can be obtained.

  In the embodiment and each modification described above, the separation portion 46 and the small-diameter cylindrical portion 521 are engaged with the separation portion side protrusion 463 and the small diameter which are spiral protrusions provided as the engagement portions, respectively. It was performed by the ridge 523.

  However, the present invention is not limited to this, and the separation portion 46 and the small diameter cylindrical portion 521 may be locked to each other by providing other locking structures such as a claw-like structure.

  Moreover, in embodiment mentioned above and each modification, although the cap of the type which unseal | opens the inside plug 4 by rotating the upper cover 5 in the opening direction was demonstrated, in this invention, not only this but the upper cover 5 It is good also as a cap of the type which opens the inside plug 4 by tightening operation | movement. That is, the score 45 is broken by the tightening operation of the upper lid 5 to separate the inner plug main body 44 and the separating portion 46 to form the opening 450, and the separated separating portion 46 may be held by the upper lid 5. . The present invention can also be applied to the cap in such an embodiment, and the same operational effects can be achieved.

  In the above-described embodiment and each modification, the cap of the type that opens and closes the entire upper lid has been described. However, the present invention is not limited to this, and the upper lid base portion 52 and the upper lid peripheral wall portion 53 are hinged. It is good also as a cap formed as a lid body connected via the upper lid peripheral wall portion 53 and capable of opening and closing. The present invention can also be applied to the cap in such an embodiment, and the same operational effects can be achieved.

1, 1 ′, 10 Cap-equipped container 2 Container body 3 Cap 4 Inner plug 5 Upper lid 21 Opening 41 Lower inner peripheral wall 42 Lower outer peripheral wall 43 Inner plug side ridge 44 Inner plug main body 45 Score 46 Separating part 47 Spout 48 Peripheral groove 51 Upper lid main body 52 Upper lid base 53 Upper lid peripheral wall 450 Opening 461 Base 462 Peripheral wall 463 Separating part side ridge 463a Lower surface 463b Upper surface 471 Sharp end 481 Outer surface 482 Outer wall 483 Inner wall 521 Small diameter cylindrical part 523 Small-diameter ridge portion 523a Lower surface 523b Upper surface 524 Large-diameter cylindrical portion 525 Wall 531 Upper lid-side ridge portion 551 Upper surface concave portion

Claims (7)

A cap comprising an inner stopper attached to the opening of the container body, and a cylindrical upper lid attached to the outside of the inner stopper,
The inner plug is connected to the inner plug main body attached to the opening of the container main body via a score at a central portion of the inner plug main body, and a separation portion provided with a separation portion side locking portion; A circumferential groove formed around the stopper body,
The upper lid includes an upper lid main body, an upper lid side locking portion that is provided upright from a base surface inside the upper lid main body and is engageable with the separation portion side locking portion of the separation portion, and the upper lid side engagement A wall between the stopper and the inner peripheral wall of the upper lid main body and provided at a position facing the peripheral groove, and a large-diameter cylinder provided between the upper lid-side locking portion and the wall. And
Equipped with a,
The separation unit, with the upper cover-side engaging portion, a cap, characterized in Rukoto which have a insertable shape in the gap between the large-diameter cylindrical portion.   The cap according to claim 1, wherein the wall abuts against an inner peripheral wall on an outer side in a radial direction of the peripheral groove portion.   The cap according to claim 1, wherein the wall abuts against an inner peripheral wall on an inner side in a radial direction of the peripheral groove portion.   The inner screw is provided on the inner peripheral surface of the peripheral wall portion of the upper lid, and the outer screw is provided on the outer peripheral surface of the inner plug main body to be screwed with the inner screw. 4. The cap according to any one of 3 above.   2. An outer screw is provided on an outer peripheral surface of the container body, and an inner screw that can be screwed with the outer screw is provided on an inner peripheral surface of a peripheral wall portion of the upper lid. The cap of any one of thru | or 3.   When the lead of the inner screw is L, the number of threads of the inner screw is N, and the pitch of the inner screw is P, the contact distance between the wall and the inner peripheral wall of the peripheral groove is a contact distance ≧ 6. The cap according to claim 4, wherein L × (1/2) and the contact distance ≧ N × P × (1/2). A cylindrical container body in which an opening is formed;
A cap attached to the container body for sealing the container body so as to be opened and closed;
A container with a cap, wherein the cap is the cap according to any one of claims 1 to 6.

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