Hand-held electric beater-mixer

In a hand-held electric beater-mixer adapted to drive selectively at least one of a beating accessory and a mixing accessory, the beater-mixer comprising:

• a housing of generally prismatic shape having a base, an upper wall, a rear wall, a hollow portion delimiting a handle, and enclosing an electric motor provided with a shaft;
• two rotatable coupling devices operatively connected to the shaft of the motor, a first opening in the base for fixing the beating accessory to a first coupling device, a second opening for fixing the mixing accessory to the second coupling device;
• an operating button for actuating a switch which controls the electric motor, said button having a body mounted in an upper portion of the housing in a region overhanging the beating accessory, the switch adapted to occupy a stop position, at least one continuous operation position, and an instantaneous operation position;
• an ejection member co-acting with the first coupling device and vertically displaceable between a low position in the absence of the beating accessory to a high position when the beating accessory is engaged in the first coupling device;
• and
• mechanical means for preventing actuation of the switch into the continuous operation position or into the instantaneous operation position when the beating accessory is inserted in the first coupling device;
• the improvement wherein the second opening is provided in the rear wall, the ejection member comprises in its upper portion a drive finger, and the mechanical means comprise a movable member interposed between the ejection member and the second coupling device, said movable member having a displacement which is subordinated to emplacement of the mixing accessory in the second coupling device, against resilient return means, and being adapted to occupy a beating position wherein the ejection member is free to pass from its low position to its high position with the drive finger freeing actuation of the button, and a mixing position wherein the ejection member is blocked in the low position with the drive finger blocking actuation of the button from a side corresponding to the continuous operation position.