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

Abstract

A lid is formed to be joinable to a container having an opening at the upper end and an edge forming the outer periphery, a base portion having a joint area corresponding portion corresponding to the area joined to the container along the edge and a small opening with a smaller opening area than that of the container, a small lid portion for opening and closing the small opening, and a hinge portion connecting the base and small lid portions, the small lid portion being rotatable relative to the base portion about the hinge portion, having a margin portion that, in a plan view of the base, is formed inside the inner edge of the joint area corresponding portion and outside the opening edge of the small opening, and when a line segment connecting the margin and hinge portions is assumed, passes through the opening edge of the small opening.

1 . A lid configured to be joinable to a container having an opening at an upper end and an edge forming an outer periphery of the opening, the lid comprising
 a base portion having a joining area corresponding portion that corresponds to an area joined to the container along the edge of the container and a small opening with an opening area smaller than the opening of the container, a small lid portion for opening and closing the small opening, and a hinge portion connecting the base portion and the small lid portion, wherein   the small lid portion is configured to be rotatable with respect to the base portion with the hinge portion as an axis, and   in a plan view of the base portion, the base portion has an eave portion outside an opening edge of the small opening.   
     
     
         2 . The lid according to  claim 1 , wherein the eave portion is a margin portion satisfying the following conditions in the plan view of the base portion:
 the margin portion is inside from an inner edge of the joining area corresponding portion and outside of the opening edge of the small opening in the base portion; and   a line segment connecting the margin portion and the hinge portion passes through the opening edge of the small opening.   
     
     
         3 . The lid according to  claim 2 , wherein the area of the margin portion is smaller than the area of the small opening in the plan view of the base portion. 
     
     
         4 . The lid according to  claim 2 , wherein the margin portion is formed such that the inner edge and the outer edge of the margin portion are non-concentric. 
     
     
         5 . The lid according to  claim 2 , wherein the margin portion has an inclined portion sloping downward from the outer edge to the inner edge of the margin portion. 
     
     
         6 . The lid according to  claim 1 , wherein a knob portion is on an upper surface side of the small lid portion. 
     
     
         7 . The lid according to  claim 6 , wherein
 the knob portion has a tab member, and   the tab member is joined to the upper surface side of the small lid portion.   
     
     
         8 . The lid according to  claim 7 , wherein when the small lid portion closes the small opening, a part of the tab member intersects the opening edge of the small opening in the plan view of the base portion. 
     
     
         9 . The lid according to  claim 6 , further comprising
 a holding structure forming portion that holds the small lid portion in a state where the small lid portion is rotated with respect to the base portion with the hinge portion as an axis to open the small opening, and   a claw portion is on the knob portion, wherein   the base portion comprises a receiving portion at a position contacting the claw portion, and   the claw portion and the receiving portion form the holding structure forming portion.   
     
     
         10 . The lid according to  claim 1 , further comprising an extending portion on the outer periphery of the base portion. 
     
     
         11 . The lid according to  claim 10 , further comprising
 a holding structure forming portion that holds the small lid portion in a state where the small lid portion is rotated with respect to the base portion with the hinge portion as an axis to open the small opening,   a knob portion on an upper surface side of the small lid portion, and   a claw portion on the knob portion, wherein   the extending portion and the claw portion form the holding structure forming portion.   
     
     
         12 . The lid according to  claim 10 , wherein the hinge portion is between the extending portion and a tip of the small lid portion. 
     
     
         13 . The lid according to  claim 1 , wherein a recessed portion is in an inner part of the joining area corresponding portion. 
     
     
         14 . The lid according to  claim 1 , wherein
 a protruding portion is on the outer periphery of the small lid portion, and   a concave portion corresponding to the protruding portion is on the opening edge of the small opening.   
     
     
         15 . The lid according to  claim 1 , wherein
 a recessed portion is on the outer periphery of the small lid portion, and a convex portion corresponding to the recessed portion is on the opening edge of the small opening.   
     
     
         16 . The lid according to  claim 1 , further comprising
 a connection structure connecting the outer periphery of the small lid portion and the opening edge of the small opening, wherein   the connection structure is a fragile portion more fragile than the small lid portion, and   when the small lid portion rotates relative to the base portion about the hinge portion, the fragile portion is destroyed.   
     
     
         17 . The lid according to  claim 16 , wherein the fragile portion has a combination structure of a connecting portion and a notch, and/or a half-cut structure. 
     
     
         18 . The lid according to  claim 1 , wherein the lid is formed of paper-based material. 
     
     
         19 . An assembly comprising
 the lid according to  claim 1  and,   the container, wherein   the lid is joined to the container.   
     
     
         20 . A combination comprising
 the lid according to  claim 1  and,   the container.