Electric-motor kitchen appliance comprising an electric or electronic control
AssigneeBSH Bosch und Siemens Hausgeraete GmbH
InventorsMarjan Mak, Darko Ogrizek, Aleksander Sedovsek, Uros Semeja
Life of this patent
Estimating the term…
Abstract
An electric-motor kitchen appliance, in particular an electric-motor handheld device, preferably a hand mixer, includes a switch. The invention also relates to a finger-actuated electric control for the switch, and to a method for switching on/off a kitchen appliance. The switch is unlocked when the safety switch is actuated by the finger of a user. The safety switch is electronically switched. The possibility of unintentionally operating the electric-motor of the kitchen appliance is reduced due to the manual operation of the two separate switches. As a result, the safety of the electric-motor kitchen appliance in the household is significantly increased.
Claims25
An electric-motor handheld kitchen appliance, comprising:
- at least one exposed and unguarded rotating blade or cutter;
- a finger-actuatable on/off switch to cause rotation of the blade or cutter;
- and
- a finger-actuatable electric control for the on/off switch,
- wherein the on/off switch and the control are located proximate to one another, wherein activation of the on/off switch is enabled while the control is switched on, and wherein the control only remains switched on while it is pressed, and wherein the on/off switch is configured to remain switched on after activation even when the control is not pressed.
An electric-motor handheld kitchen appliance, comprising:
- at least one exposed and unguarded rotating blade or cutter;
- an on/off switch to cause rotation of the blade or cutter;
- and
- a finger-actuatable electric control for the on/off switch,
- wherein the control includes a safety switch and a time-integration circuit to unlock the on/off switch only after a predetermined time delay during which the safety switch is actuated;
- and
- wherein the time-integration circuit unlocks the on/off switch for a preset time window after the predetermined time delay.
A method for switching on/off a hand mixer having a safety switch located proximate to an on/off switch, and at least one unguarded and exposed rotating blade or cutter, the method comprising activating the safety switch to enable operation of the on/off switch;
- and activating the on/off switch to cause rotation of the blade or cutter, wherein the operation of the on/off switch is enabled only within a preset time window following activation of the safety switch, and wherein the operation of the on/off switch is only enabled after the safety switch is activated for at least 0.1 seconds.
Dependencies are inferred from the claim text.