DISPOSER

PROBLEM TO BE SOLVED: To prevent tangling by increasing discharge effect of a disposer and cutting fibrous matter falling into a crushing chamber. SOLUTION: The disposer is provided with an upper casing 1 where the crushing chamber 3 is formed, a rotary disc 4 disposed on a bottom of the crushing chamber, a ring-like fixed blade 7 where a vertical groove 8 and a blade part 9 are formed around the rotary disc, and an impeller 11 on a lower face of the rotary disc 4. A discharge port 14 is provided in the tangential direction so that a vertical section in the circumferential direction of a discharge chamber 10 below the rotary disc is formed in the same shape, and an outer side edge of the impeller 11 is extended near to the inner wall of the discharge chamber to allow the impeller 11 to have a size to occupy almost all the area of the vertical section of the discharge chamber. The upper end of an extended part 12 of the impeller is brought near to the lower end of the fixed blade, to cut garbage falling from the vertical groove at the lower end of the fixed blade 7 and on the upper face part of the extended part 12. The vertical groove at the position corresponding to the extended part 12 of the impeller in the stopped state is formed as an expanded vertical groove 13 expanded matching the upper shape of the extended part. COPYRIGHT: (C)2009,JPO&INPIT