| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the opening part of a bag of a coffee filter from being closed or deformed due to pressure and weight of poured hot water when the coffee filter is used in the coffee filter which supports the bag housing coffee powder by a pair of supports over a coffee cup. <P>SOLUTION: Front and back surfaces 2a and 2b constituting the bag 2 are respectively formed to have nearly an inverse trapezoidal shape. The supports 3 and 3 fixed to the front and back surfaces 2a and 2b are pulled forward and backward in the case of using the coffee filter. Thus, when the engaging pieces 11 and 11 are hooked and mounted to the edge 4a of the cup 4, the bag 2 is opened in the shape of a funnel to open the opening 8 stably and to keep an opened shape. <P>COPYRIGHT: (C)2007,JPO&INPIT |
