| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent powder from entering a bearing owing to the differential pressure between the space between the bearing and a seal member, and the outside. <P>SOLUTION: Power agitating devices Gy to Gk each includes a powder storage container V in which powder storage chambers 2 and 3 containing powder are formed, rotating members R1 and R2 which rotate in the storage chambers 2 and 3 to agitate the powder, a bearing 26 which is supported in the powder storage container V and supports rotary shafts R1a and R2a of the rotating members R1 and R2 rotatably, a seal member 22 which is arranged between the bearing 26 and powder storage chambers 2 and 3 and prevents powder from moving from the powder storage chambers 2 and 3 to the bearing 26 along the rotary shafts R1a and R2a of the rotating members R1 and R2, and an air flow passage 21d which connects bearing 26 and the outside of the bearing 26 in the powder storage container V. <P>COPYRIGHT: (C)2007,JPO&INPIT |
