Tumbler with a bi-layer structure

Abstract

A tumbler with a bi-layer structure has a collision-resistant outer tumbler body, a glass inner container and a lid. The collision-resistant outer tumbler body is made of plastic. The glass inner container is made of glass, is mounted in the collision-resistant outer tumbler body to form a bi-layer structure, and has a container space. The lid is mounted on the collision-resistant outer tumbler body and the glass inner container and has a combining base combined with the collision-resistant outer tumbler body and the glass inner container, an opening unit mounted in the combining base and communicating with the container space, and a closing cap combined with the combining base and selectively closing the opening unit.

What is claimed is: 
     
         1 . A tumbler with a bi-layer structure having:
 a collision-resistant outer tumbler body made of plastic and having a tumbler body space formed in the collision-resistant outer tumbler body and having an opening;   a glass inner container made of glass, mounted in the tumbler body space to form a bi-layer structure and having a container space formed in the glass inner container and having an opening; and   a lid mounted on the collision-resistant outer tumbler body and the glass inner container and closing the openings of the container space and the tumbler body space, the lid having
 a combining base combined with the collision-resistant outer tumbler body and the glass inner container; 
 an opening unit mounted in the combining base and communicating with the container space; and 
 a closing cap combined with the combining base and selectively closing the opening unit. 
   
     
     
         2 . The tumbler with a bi-layer structure as claimed in  claim 1 , wherein
 the combining base has a drink channel formed through the combining base and communicating with the container space;   the opening unit is mounted in the drink channel and has
 a body mounted in the drink channel and having
 a recess formed in a side of the body and communicating with the drink channel and the container space; and 
 a slide notch formed in the body and communicating with the recess; 
 
 a sealing ring mounted around the opening unit and partially closing a segment formed between the opening unit and the combining base; and 
 a sliding cap slidably mounted in the slide notch and selectively closing the recess. 
   
     
     
         3 . The tumbler with a bi-layer structure as claimed in  claim 2 , wherein the combining base is combined with the glass inner container by threads. 
     
     
         4 . The tumbler with a bi-layer structure as claimed in  claim 3 , wherein the combining base is combined with the collision-resistant outer tumbler body by threads. 
     
     
         5 . The tumbler with a bi-layer structure as claimed in  claim 4 , wherein the closing cap is combined with the combining base by threads. 
     
     
         6 . The tumbler with a bi-layer structure as claimed in  claim 1 , wherein
 the combining base further has a button pivotally mounted on the combining base and having an engagement portion; and   the closing cap is pivotally mounted on the combining base by a spring and has
 a closure body mounted on a side of the closing cap and selectively closing the opening unit; and 
 a closing cap engagement portion selectively engaged with the engagement portion of the combining base.