| 摘要 |
PROBLEM TO BE SOLVED: To facilitate operation for putting in and out a stirring impeller. SOLUTION: An impeller 31 is supported by a supporting shaft 30 at the bottom of a mixing container 15 in the state of being rotatable and capable of being pulled out and inserted in. At the lower part of the front surface of the container 15, a cylindrical port 50 for taking the impeller in and out is opened coaxially with the impeller 31 and a cap 60 is adhered thereto. At the cap 60, a knob 67 is provided, a seal ring closely fitted to the inner periphery of the port 50 is mounted and a pair of catches 70 is projectingly provided at an interval of 180 deg.. A pair of catches 52 forming an engaging groove 53 is provided on the side of the port 50. The cap 60 is fixed in the state of being prevented from coming off and in the state of watertight by fitting a flange 63 to the projecting end face 51 of the port 50 to turn clockwise so as to put the catch 70 around in the groove 53. In the case of washing the impeller 31, the cap 60 is removed by turning in an inverse direction to pull out through the port 50.
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