Closable container

Abstract

Provided is a container including a container body and a cap. The container body has a mouth part defining an opening. The cap closes the opening. The cap includes a ring-shaped frame, a door lid, a gasket, and a biasing member. The frame is detachably attached to the mouth part. The door lid is coupled to the frame and rotates between a closed position to close the opening and an open position to open the opening. The gasket is attached to the frame or the door lid, is composed of an elastic material, and is interposed in a gap between the frame and the door lid so as to the gap when the door lid is at the closed position. The biasing member is composed of the same material as the gasket, is constituted integrally with the gasket, and biases the door lid toward the open position.

What is claimed is: 
     
         1 . A closable container comprising:
 a container body having a mouth part that defines an opening; and   a cap configured to close the opening,   wherein the cap includes:   a ring-shaped frame configured to be detachably attached to the mouth part,   a door lid that is coupled to the frame in a hinged manner and is configured to rotate between a closed position at which the opening is closed and an open position at which the opening is open,   a gasket that is attached to the frame or the door lid, is composed of an elastic material, and is interposed in a gap between the frame and the door lid so as to seal the gap when the door lid is at the closed position, and   a biasing member that is composed of the same elastic material as the gasket, is constituted integrally with the gasket, and is configured to bias the door lid in a direction toward the open position.   
     
     
         2 . The closable container according to  claim 1 ,
 wherein the gasket is attached to the frame.   
     
     
         3 . The closable container according to  claim 2 ,
 wherein the gasket is interposed in a gap between the mouth part and the frame so as to seal the gap in a state in which the frame is attached to the mouth part.   
     
     
         4 . The closable container according to  claim 1 ,
 wherein the cap further includes a lock mechanism configured to switch between a locked state in which the door lid is kept at the closed position, and an unlocked state in which the locked state is canceled.   
     
     
         5 . The closable container according to  claim 2 ,
 wherein the cap further includes a lock mechanism configured to switch between a locked state in which the door lid is kept at the closed position, and an unlocked state in which the locked state is canceled.   
     
     
         6 . The closable container according to  claim 3 ,
 wherein the cap further includes a lock mechanism configured to switch between a locked state in which the door lid is kept at the closed position, and an unlocked state in which the locked state is canceled.   
     
     
         7 . The closable container according to  claim 4 ,
 wherein the lock mechanism includes a first extension portion that extends from the door lid, and a second extension portion that extends from the frame and is configured to engage with the first extension portion in the locked state.   
     
     
         8 . The closable container according to  claim 1 ,
 wherein the biasing member is in contact with the door lid, and is folded so as to bias the door lid in the direction toward the open state using an elastic force by which the biasing member attempts to return to its original state when the door lid is at the closed position.   
     
     
         9 . The closable container according to  claim 1 ,
 wherein the elastic material is elastomer.   
     
     
         10 . The closable container according to  claim 1 ,
 wherein the elastic material is silicone rubber.   
     
     
         11 . A closable container comprising:
 a container that includes a circumferential edge portion surrounding an opening;   a door lid that is coupled to the circumferential edge portion in a hinged manner, and is configured to rotate between a closed position at which the opening is closed and an open position at which the opening is open;   a gasket that is attached to the circumferential edge portion or the door lid, is composed of an elastic material, and is interposed in a gap between the circumferential edge portion and the door lid so as to seal the gap when the door lid is at the closed portion; and   a biasing member that is composed of the same elastic material as the gasket, is constituted integrally with the gasket, and is configured to bias the door lid in a direction toward the open position.   
     
     
         12 . The closable container according to  claim 11 , further comprising
 a lock mechanism configured to switch between a locked state in which the door lid is kept at the closed position, and an unlocked state in which the locked state is canceled.   
     
     
         13 . The closable container according to  claim 12 ,
 wherein the lock mechanism includes a first extension portion that extends from the door lid, and a second extension portion that extends from the circumferential edge portion and is configured to engage with the first extension portion in the locked state.   
     
     
         14 . The closable container according to  claim 11 ,
 wherein the biasing member is in contact with the door lid, and is folded so as to bias the door lid in the direction toward the open state using an elastic force by which the biasing member attempts to return to its original state when the door lid is at the closed position.   
     
     
         15 . The closable container according to  claim 11 ,
 wherein the elastic material is elastomer.   
     
     
         16 . The closable container according to  claim 11 ,
 wherein the elastic material is silicone rubber.