| 摘要 |
A grinder (30) has a toolessly attached ingredient hopper assembly (50) overlying a toolessly attached fixed grinding burr (134) defining the top of a grind chamber (158) within which is received a mating rotary grinding burr (150) that is slidably mounted to a rotary drive motor (154) for adjustment relative to the fixed grinding burr (134). Adjustment is achieved automatically by control of a stepper motor (168) that pushes on the end of an elongate member (151) passing through a hollow rotary drive axle (152) and carrying the rotary grinding burr (150) at an opposite end. Start of a grinding cycle in response to actuation of a start switch is inhibited if a pair of photosensors (81, 82) do not detect location of a ground ingredient container (68) in a correct position for receipt of the ground food ingredient, if an automatically closable hopper cover lid (57) is not in a closed position or if grinding parameters, such as the fineness of the grind and the amount of ingredient to be ground has not been detected.
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