초록 ▼

Provided are a cap capable of being easily and reliably opened and unsealed not limited in design even if an inner cap with a small diameter is used for the cap, producing no refuse after the unsealing, and not unnecessarily large in size, and a container with the cap. When an over cap (3) is rotate

Provided are a cap capable of being easily and reliably opened and unsealed not limited in design even if an inner cap with a small diameter is used for the cap, producing no refuse after the unsealing, and not unnecessarily large in size, and a container with the cap. When an over cap (3) is rotated in the opening direction, a pair of screw threads (10a, 10b) as opening means are advanced in the direction in which they are tightened together, and this cuts off a planned opening section (4) from the inner cap (2). Thus, the cap has a relatively simple structure and can be simply and reliably unsealed by small force. Also, the planned opening section (4) is integrated with the over cap (3) after unsealing the inner cap (2), so that no refuse is produced after the unsealing, eliminating the need to clear it away from a table.

대표청구항 ▼

1. A cap comprising: an inside plug, which, together with a container main body, forms an airtight space for enclosing contents, and which has a separating part for forming an aperture part in the airtight space; andan upper closure having a screwing part that enables attachment and detachment to an

1. A cap comprising: an inside plug, which, together with a container main body, forms an airtight space for enclosing contents, and which has a separating part for forming an aperture part in the airtight space; andan upper closure having a screwing part that enables attachment and detachment to and from the container main body by a rotation operation, and an opening portion that forms the aperture part by separating the separating part from the inside plug due to the rotation operation of the screwing part;the separating part is an intended aperture part to be severed from the inside plug;the opening portion includes a second threaded member, which relatively displaces the intended aperture part relative to an external portion extending outwardly from the intended aperture part by screwing together with a first threaded member disposed in the intended aperture part;the opening portion includes a cutting member, which moves together with the screwing part, and which causes the external portion to relatively separate from the intended aperture part; andthe second threaded member is a male thread, and is formed on an inner side of the first threaded member, which is a female thread, and the cutting member is formed outer side of the first threaded member. 2. The cap according to claim 1, wherein the cutting member has a blade-edged portion, which annularly protrudes downwardly from the bottom surface of the apex of the upper closure, and which has a cross-section that is acutely angled at a lower end thereof. 3. The cap according to claim 1, wherein the second threaded member is a male thread while the screwing part is a female thread, with the second threaded member being in either one of the opposite direction relationship with the screwing part or the forward direction relationship with the screwing part, and the rotation operation for operating the opening portion is rotation in either one of the direction that opens the upper closure or the direction that closes the upper closure. 4. The cap according to claim 1, wherein the inside plug is formed of a resin material, and a thin-walled score is formed between the separating part and an external portion extending outwardly from the separating part. 5. The cap according to claim 1, wherein the separating part is an internal sealing plug that can block the aperture part subsequent to unsealing. 6. The cap according to claim 1, wherein the second threaded member is a male thread while the screwing part is a female thread, with the second threaded member being in an opposite direction relationship with the screwing part, and the rotation operation for operating the opening portion is rotation in a direction that opens the upper closure. 7. The cap according to claim 1, wherein the second threaded member is a male thread while the screwing part is a female thread, with the second threaded member being in a forward direction relationship with the screwing part, and the rotation operation for operating the opening portion is rotation in a direction that closes the upper closure. 8. A covered container comprising: a bottle, which constitutes the container main body, and which stores a liquid that is the contents; andthe cap of claim 1, which is disposed on the mouth part of the bottle.