| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collecting device being not bulky in keeping or disposing.SOLUTION: A bag body 43 is formed of an expansible filter material. Even when the bag body 43 is expanded in collecting dust inside, the bag body 43 is expanded in an optimum shape along the inner shape of a body frame 42, regardless of the internal shape of a body dust collecting chamber. When not in use, only the bag body 43 is kept in the contracted state, and after use, the collected dust is compressed by contracting the bag body 43. Thus, the device is not bulky in keeping or disposing. |
