A personal care appliance (10), or power toothbrush, comprises a handle (16) including a drive train (20), a motor controller (18), and an attachment (12) that includes a resonant structure (14). The motor controller (18) controls an operation of the drive train (20) to produce at least one of a first mechanical stimulus and a second mechanical stimulus, the first mechanical stimulus comprising a first cleaning motion (42) having a first resonant frequency, the second mechanical stimulus comprising a second movement having a second resonant frequency. The resonant structure (14) implements the first cleaning motion (42) and an additional resonant motion (44,46,48,50,52,60) as well as the cleaning motion (42).

A personal care appliance (10) comprises a handle (12), an attachment (14), and a controller (16). The handle (12) includes an actuator (20) and drive shaft (22). The attachment (14) has a body (30) with a principal axis (32) extending between a proximal end and a distal end thereof, wherein the proximal end couples to the drive shaft. The attachment (14) further includes a mass-spring identifiable assembly (40) having at least one identifiable resonant frequency in response to a given excitation, wherein the at least one identifiable resonant frequency comprises a resonant frequency selected from at least two different resonant frequencies. The controller (16) is configured to control the attachment (14), via the actuator(20), over a predefined range of frequencies that includes the given excitation. The controller (16) is further configured, in at least a detection mode, to uniquely recognize the attachment (14) via detecting a presence of the at least one identifiable resonant frequency of the mass-spring identifiable assembly (40) of the attachment (14) in response to the given excitation.

A personal care appliance (10) comprises a handle (12), an attachment (14), and a controller (16). The handle (12) includes an actuator (20) and drive shaft (22). The attachment (14) has a body (30) with a principal axis (32) extending between a proximal end and a distal end thereof, wherein the proximal end couples to the drive shaft. The attachment (14) further includes a mass-spring identifiable assembly (40) having at least one identifiable resonant frequency in response to a given excitation, wherein the at least one identifiable resonant frequency comprises a resonant frequency selected from at least two different resonant frequencies. The controller (16) is configured to control the attachment (14), via the actuator(20), over a predefined range of frequencies that includes the given excitation. The controller (16) is further configured, in at least a detection mode, to uniquely recognize the attachment (14) via detecting a presence of the at least one identifiable resonant frequency of the mass-spring identifiable assembly (40) of the attachment (14) in response to the given excitation.

A toothbrush configured to provide improved cleaning of the rear surface of the upper and lower central and lateral incisors. The toothbrush includes a handle having a first end and a second end. The handle further includes an upper surface and a lower surface and additionally a middle portion intermediate the first end and second end. Secured to the first end is a first bristle group that is configured to extend downward therefrom. Adjacent to the first bristle group is a divider. The divider include a first surface proximate the first bristle group and a second surface opposite thereto. A second bristle group is secured to the second surface of the divider and extends toward said second end of said handle being perpendicular in orientation to said first bristle group. A recess is formed in the lower surface of the handle above the second bristle group.

A toothbrush (100) having a combination of tapered and non-tapered cleaning elements (50) for enhanced cleaning effects and having a plurality of tapered bristle tufts of differing tuft configurations including, a first tapered bristle tuft (500) having a dome-shaped bristle tip profile (520) toward one end (210) of the head (200), a second tapered bristle tuft (602) having an arcuate-shaped bristle configuration (622) toward an opposite end (222) of the head (200), and a plurality of laterally-extending third tapered bristle tufts (600) arranged in an alternating fashion with non-tapered bristle tufts (630) and disposed between the first and second tapered bristle tufts (500, 602).

The present disclosure provides a brushhead for a power toothbrush, and the power toothbrush. The brushhead configured for an electric toothbrush, the brushhead being detachably installed on a handle of the electric toothbrush, the brushhead comprising: a brushhead element; and an engaging assembly arranged in the brushhead element and connecting the brushhead element with a driving shaft, wherein the engaging assembly comprises a main body, an accommodating cavity is defined in a first end of the main body along a first direction, the accommodating cavity is configured to accommodate the driving shaft, a material of the brushhead element is different from a material of the main body, and the first direction is a direction from an end of the brushhead element connected with the handle toward an end of the brushhead element away from the handle.

The present disclosure provides a brushhead for a power toothbrush, and the power toothbrush. The brushhead configured for an electric toothbrush, the brushhead being detachably installed on a handle of the electric toothbrush, the brushhead comprising: a brushhead element; and an engaging assembly arranged in the brushhead element and connecting the brushhead element with a driving shaft, wherein the engaging assembly comprises a main body, an accommodating cavity is defined in a first end of the main body along a first direction, the accommodating cavity is configured to accommodate the driving shaft, a material of the brushhead element is different from a material of the main body, and the first direction is a direction from an end of the brushhead element connected with the handle toward an end of the brushhead element away from the handle.

The present disclosure provides a brushhead for an power toothbrush detachably attached to a handle of the power toothbrush, the handle including a vibrating drive shaft, the brushhead comprising: a main body defining a receiving cavity which is configured to receive at least a portion of the vibrating driving shaft, the main body including a cavity wall substantially surrounding the receiving cavity and an end connected to the handle, with an opening which is defined in the end of the main body in air communication with the receiving cavity, so that the vibrating driving shaft is capable of being inserted into the receiving cavity through the opening; and an engaging assembly mounted in a side wall of the main body, the engaging assembly comprising an elastic member, which is made by metal material; wherein, a recess is defined in the outer surface of the side wall, the elastic member is deformably received in the recess, the elastic member is elastically deformed by force provided from the vibrating drive shaft when the brushhead is attached to the handle of the power toothbrush.

The present invention relates to a toothbrush and, more particularly, to a toothbrush produced by providing soft bristles on a side of a solid bar and capable of easily and simultaneously cleaning a total of six surfaces, e.g., upper and lower flat surfaces, upper left and upper right side surfaces, and lower left and lower right side surfaces, of teeth based on a simple user operation of grasping the toothbrush with a hand.

An electrical appliance for personal care includes a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein a vibration unit having an electric motor and an eccentric element is arranged in the handle, wherein a plug-like coupling structure protrudes from the handle, which plug-like coupling structure forms an interface with a substantially mirror-inverted socket-like coupling structure of the plug-on part, wherein the interface has at least two stages with different circumferential geometry, wherein at least one of the stages has a rotation-preventing device between the handle and the plug-on part, and wherein a stop surface of the handle for the plug-on part extends obliquely with respect to the longitudinal axis of the handle.