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AssigneeWanzl Metallwarenfabrik GmbH
InventorJürgen Hämmerle
Life of this patent
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Abstract
A push cart includes a frame, a pushing device, a plurality of casters, one or more electric consumers, at least one rechargeable battery, and at least one power generator that can be driven via a traveling motion of the cart and is connected to the at least one rechargeable battery.
Claims24
A push cart comprising a frame, a pushing device, a plurality of casters, one or more electric consumers, at least one rechargeable battery, and at least one power generator that can be driven via a traveling motion of the cart and is connected to the at least one rechargeable battery such that a charge current flows to the at least one rechargeable battery during a normal generator operation,
- wherein the power generator is configured as a direct electric drive motor, and
- wherein the motor includes an electronic control unit having a shorting bar such that the motor can be switched between the normal generator operation and a braking operation in which braking current flows across the shorting bar and the traveling motion of the cart is hampered.
Dependencies are inferred from the claim text.