Kitchen machine with protected rotatable bowl
AssigneeU.S. Philips Corporation
InventorsJohan R. Nijzingh, Adam Weits
Life of this patent
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AssigneeU.S. Philips Corporation
InventorsJohan R. Nijzingh, Adam Weits
Estimating the term…
A kitchen machine is provided with a base (3) and a motor housing (5) which is arranged on the base (3) and in which an electric motor (27) is accommodated. On the base (3) next to the motor housing (5), an open bowl (9) can be placed, journalled relative to the base (3). A transverse arm (17) can be coupled on the motor housing (5), which arm extends to above the bowl (9). A tool (19) can be placed in the bowl (9) and can be coupled to a transmission (25) which is arranged in the transverse arm (17) and can be driven by the electric motor (27). The bowl (9) can be driven into rotation by a pinion (21) which is also coupled to the transmission (25). The pinion (21) is displaceable along its axis of rotation relative to the transverse arm (17) and is displaced from a first into a second position through engagement with a toothed rim (23) of the bowl (9) when the transverse arm (17) is placed on the motor housing (,5). In the first position of the pinion (21), a rotary switch (69) is blocked in its zero position by a blocking mechanism (71) coupled to the pinion (21), so that the electric motor (27) cannot be switched on, whereas the rotary switch (69) is released by the blocking mechanism (71) with the pinion (21) in the second position when the transverse arm (17) is locked to the motor housing (5) by a locking mechanism (117). The kitchen machine can thus only be switched on when both the bowl (9) and the transverse arm (17) have been correctly positioned, so that the possibility of injury of a user of the kitchen machine with the rotating parts of the kitchen machine is substantially elminated.
A kitchen machine which comprises a housing, a bowl which is placeable on the housing and which is rotatably guided relative to the housing, a transverse arm which is displaceable relative to the housing, a tool which is placeable in the bowl and can be coupled to a transmission arranged in the transverse arm and driven by an electric motor, and a drive wheel driven by the electric motor for driving the bowl and cooperating with a circumference of the bowl, wherein the drive wheel is displaceably guided along its axis of rotation relative to the transverse arm between a first position and a second position, the drive wheel being displaceable from the first position into the second position through engagement with the bowl when the transverse arm is placed on the housing, and a blocking mechanism cooperating with the drive wheel blocks a switch of the electric motor in the first position of the drive wheel and releases it in the second position of the drive wheel.
Dependencies are inferred from the claim text.