Abstract: An oral cleaning section for detachable connection with a handle section of an oral cleaning device is disclosed. The oral cleaning section has a connector structure for detachably attaching the oral cleaning section to the handle section. The connector structure has a first receptacle suitable for accommodating a first protrusion of the handle section in the attached state, the first receptacle having a first resilient element provided on a first circumferential side of the first receptacle arranged in a circumferential direction, the circumferential direction being defined with respect to the longitudinal extension axis of the oral cleaning section. The disclosure is also directed to an oral cleaning device that includes an oral cleaning section attached to a handle section.

Abstract: A resonant motor unit that has a resonant motor, a control unit, a measurement unit, and an evaluation unit is described. The control unit drives the resonant motor at a driving frequency, short-circuits the resonant motor during at least a first short-circuiting phase in successive driving cycles and concludes the first short-circuiting phases by switching off the current flow through the resonant motor at least at a predetermined first time instant within the driving cycles. The measurement unit successively measures at least a first voltage signal provided by the resonant motor at the predetermined first time instant, and the evaluation unit for determines whether the first voltage signal has changed between successive measurements.

Abstract: An oscillatory system for a motorized drive unit for the generation of a rotary oscillatory movement is provided. The system includes a first oscillatory component and a second oscillatory component, the components capable of oscillating relative to one another around an axis of oscillation; and at least two elongate spring elements, each spring element having a first fastening point and a second fastening point spaced apart from one another. The spring elements are elastic in the direction of the rotary oscillatory movement. For each spring element the first fastening point is connected to the first oscillatory component and the second fastening point is connected to the second oscillatory component such that the spring elements intersect at the axis of oscillation, the axis of oscillation having an angle of intersection different from 0 degrees.

Abstract: A body care appliance is disclosed. The body care appliance includes a toothbrush having a first display; a base station for storing and/or charging the toothbrush; and a second display for displaying interactive representations, which are interactively controllable by means of a control unit from the toothbrush. The second display forms a module that is designed separately from the base station and the toothbrush and is separately positionable; the second display having a communication interface for communication with the base station and/or with the toothbrush.

Abstract: A personal hygiene device is disclosed. The device includes a toothbrush; and a display for displaying interactive representations, which are controllable from the display by means of a control device. The control device includes a game controller for controlling a video game on the display and an information controller for making information available on the display, such that a switching device operable by a switching key located on at least the toothbrush or the display is provided for switching between the game presentation generated by the game controller and the information presentation generated by the information controller.

Abstract: An electric toothbrush is disclosed. The tootbrush includes two elements to be driven, wherein the first element is a movable brush head and the second element is a pump; an electric motor; and a device that drives the movable brush head in both directions of rotation of the electric motor and drives the pump in one direction of rotation.

Abstract: A linear electro-polymer motor includes a fixed member, a linear shaft having an axis, a polymer actuator, and a bias member. The polymer actuator includes a first end fixedly connected to the linear shaft and a second end fixedly connected to the fixed member. The bias member includes a first end fixedly connected to the linear shaft and a second end fixedly connected to the fixed member. The polymer actuator changes length after receipt of voltage to linearly move the linear shaft along the axis.

Abstract: A personal care device is disclosed. The personal care device includes an electrically powered driving unit for driving a working implement of the personal care device at a desired speed and/or amplitude and/or frequency; and a control unit for controlling the driving unit in response to load onto the working implement. The control unit includes a detector for detecting an operating parameter of the driving unit responsive to load onto the working implement, and a powering unit for varying the electrical powering of the driving unit in response to a detected change of the value of the operating parameter such that speed and/or amplitude and/or frequency of the working implement is changed from an idling value to an operation value.

Abstract: An electro-polymer motor comprising a fixed member and a first actuator having a first end fixedly connected to the fixed member and a second end is presented. The first actuator comprises a polymer positioned between two electrodes. The electrodes are in communication with a power supply. The motor also comprises a driven member comprising a first leg and a second leg such that the first leg and the second leg are separated by an axis. The driven member is fixedly connected to the second end of the first actuator. The motor also comprises a compressible member having a first end fixedly connected to the fixed member and a second end fixedly connected to the second leg of the driven member. The compressible member is spaced apart from the first actuator. The first actuator elongates after the power supply applies a voltage across the electrodes to move the driven member.

Abstract: An oscillatory system for a motorized drive unit for the generation of a rotary oscillatory movement is provided. The system includes a first oscillatory component and a second oscillatory component, the components capable of oscillating relative to one another around an axis of oscillation; and at least two elongate spring elements, each spring element having a first fastening point and a second fastening point spaced apart from one another. The spring elements are elastic in the direction of the rotary oscillatory movement. For each spring element the first fastening point is connected to the first oscillatory component and the second fastening point is connected to the second oscillatory component such that the spring elements intersect at the axis of oscillation, the axis of oscillation having an angle of intersection different from 0 degrees.

Abstract: A personal care device having a handle having an engagement portion and a persona care attachment are described. The personal care attachment has a housing attached to the engagement portion and a contact element carrier. The contact element carrier is movably coupled to the housing. A plurality of contact elements is arranged on the contact element carrier, and wherein the personal care attachment is driven at a frequency of between about 150 Hz to about 175 Hz and has a sound intensity level of less than about 75 dB(A).

Abstract: A resonant motor unit that has a resonant motor, a control unit, a measurement unit, and an evaluation unit is described. The control unit drives the resonant motor at a driving frequency, short-circuits the resonant motor during at least a first short-circuiting phase in successive driving cycles and concludes the first short-circuiting phases by switching off the current flow through the resonant motor at least at a predetermined first time instant within the driving cycles. The measurement unit successively measures at least a first voltage signal provided by the resonant motor at the predetermined first time instant, and the evaluation unit for determines whether the first voltage signal has changed between successive measurements.

Abstract: A personal care device having a handle having an engagement portion and a persona care attachment are described. The personal care attachment has a housing attached to the engagement portion and a contact element carrier. The contact element carrier is movably coupled to the housing. A plurality of contact elements is arranged on the contact element carrier, and wherein the personal care attachment is driven at a frequency of between about 150 Hz to about 175 Hz and has a sound intensity level of less than about 75 dB(A).

Abstract: A body care appliance for personal use is disclosed. The body care appliance includes a toothbrush; a display device and a sensing device. The display device displays interactive representations that can be controlled interactively from the toothbrush by means of a control device. The sensing device senses at least one operating parameter relating to the toothbrush, wherein the sensing device has position sensing means for sensing the relative position of the toothbrush to the body part of the appliance user.

Abstract: An oral cleaning section for detachable connection with a handle section of an oral cleaning device is disclosed. The oral cleaning section has a connector structure for detachably attaching the oral cleaning section to the handle section. The connector structure has a first receptacle suitable for accommodating a first protrusion of the handle section in the attached state, the first receptacle having a first resilient element provided on a first circumferential side of the first receptacle arranged in a circumferential direction, the circumferential direction being defined with respect to the longitudinal extension axis of the oral cleaning section. The disclosure is also directed to an oral cleaning device that includes an oral cleaning section attached to a handle section.

Abstract: The invention relates to a small electrical appliance, for example an electric toothbrush (1), with two elements to be driven and with an electric motor (10). The small electrical appliance has a device (16.1; 16.2; 16.3) that drives the first and/or the second element depending on the direction of rotation of the electric motor (10). The first element to be driven can be a movable brush head (2), and the second element to be driven can be a pump (7, 14) for conveying a care agent to the brush head (2) from a reservoir, wherein the device (16.1, 16.2, 16.3) drives the brush head (2) in both directions of rotation of the electric motor (10), but drives the pump (7, 14) only in one direction of rotation of the electric motor (10).