Lid, container with lid, and combination of lid and container

Abstract

A lid, container with a lid, and a combination of a lid and container for suppressing spurts of content wherein the lid includes a main body in contact with a container including an opening and edge, the main body including an insertion part forming an insertion hole including a hole lid covering the insertion hole and a weakened part forming at least part of an outer circumferential edge of the hole lid, the weakened part includes several cuts penetrating the main body and a non-penetrating part, the insertion hole is formed by applying stress to the insertion part from outside, and when the insertion hole is formed, the non-penetrating part breaks, the broken non-penetrating part forms a fracture surface, the hole lid is displaced together with the fracture surface, and at least part of the fracture surface is located at the hole lid tip.

1 . A lid comprising:
 a main body formed in such a way as to be contactable with a container including an opening and an edge forming an outer periphery of the opening, wherein   the main body includes an insertion part configured to be capable of forming an insertion hole,   the insertion part includes a hole lid that covers the insertion hole and a weakened part that forms at least a part of an outer circumferential edge of the hole lid,   the weakened part includes a plurality of cuts penetrating the main body in a thickness direction of the main body and a non-penetrating part where the main body is not penetrated,   the insertion hole is formed by applying stress to the insertion part from outside in the thickness direction of the main body, and   when the insertion hole is formed, the non-penetrating part is broken, the broken non-penetrating part forms a fracture surface in a part of the outer circumferential edge of the hole lid, the hole lid is displaced together with the fracture surface, and at least a part of the fracture surface is located at a tip of the hole lid.   
     
     
         2 . A lid comprising:
 a main body formed in such a way as to be contactable with a container including an opening and an edge forming an outer periphery of the opening, wherein   the main body includes an insertion part configured to be capable of forming an insertion hole,   the insertion part includes a hole lid that covers the insertion hole and a weakened part that forms at least a part of an outer circumferential edge of the hole lid,   the hole lid includes a corner forming a protruding portion of a contour in plan view of the main body,   the weakened part includes a plurality of cuts penetrating the main body in a thickness direction of the main body and a non-penetrating part where the main body is not penetrated,   the insertion hole is formed by applying stress to the insertion part from outside in the thickness direction of the main body, and   when the insertion hole is formed, the non-penetrating part is broken, the broken non-penetrating part forms a fracture surface in a part of the outer circumferential edge of the hole lid, the hole lid is displaced together with the fracture surface, and at least a part of the fracture surface is located at the corner of the hole lid.   
     
     
         3 . The lid according to  claim 1 , wherein
 a plurality of the fracture surfaces is formed when the non-penetrating part is broken, and at least a part of at least one of the fracture surfaces is located at the tip of the hole lid.   
     
     
         4 . The lid according to  claim 1 , wherein
 the weakened part includes a plurality of the non-penetrating parts, and   at least one of the non-penetrating parts is broken by applying stress to the insertion part from the outside in the thickness direction of the main body.   
     
     
         5 . The lid according to  claim 1 , wherein
 the insertion part includes a plurality of the hole lids, and   when the insertion hole is formed, the fracture surface is formed in a part of the outer circumferential edge of each of the hole lids.   
     
     
         6 . The lid according to  claim 1 , wherein
 the non-penetrating part has a half-cut structure in which the main body is cut to a predetermined depth in the thickness direction of the main body.   
     
     
         7 . The lid according to  claim 1 , wherein
 the weakened part has a structure in which at least three of the cuts are formed around the non-penetrating part.   
     
     
         8 . The lid according to  claim 1 , wherein
 a raised part is formed, and   the insertion part is formed in a formation region of the raised part.   
     
     
         9 . The lid according to  claim 1 , wherein
 the main body is formed of a paper-based material.   
     
     
         10 . The lid according to  claim 1 , further comprising:
 a joining region corresponding part corresponding to a region joined to the container along the edge of the container; and   a lid region corresponding part that is a portion inside the joining region corresponding part, wherein   the insertion part is formed in the lid region corresponding part.   
     
     
         11 . The lid according to  claim 1 , wherein
 a side wall is provided around an outer periphery of the main body, and   the side wall is configured to be lockable to the container along the edge of the container.   
     
     
         12 . The lid according to  claim 1 , wherein
 the cuts each include a circumferential surface part and ends, and   when different two of the cuts are defined as a first cut and a second cut, respectively, at least one pair of the first cut and the second cut is arranged such that the non-penetrating part is formed between one of the ends of the first cut and the circumferential surface part of the second cut.   
     
     
         13 . A container with a lid comprising:
 the lid according to  claim 1 ; and   the container including the opening and the edge forming the outer periphery of the opening, wherein   the lid is joined to the container.   
     
     
         14 . A combination of a lid and a container, comprising:
 the lid according to  claim 1 ; and   the container including the opening and the edge forming the outer periphery of the opening.