The present disclosure relates to an electric toothbrush, and more particularly, to an electric toothbrush including: a main body which includes an outer case; a cleaning body which is coupled to the main body and has a cleaning head formed at one end thereof; a vibration transmission unit which couples the main body and the cleaning body, has a vibration generator mounted thereon to generate vibration, and transmits the vibration to the cleaning body; and a vibration damping unit which is provided between the outer case and the vibration transmission unit, thereby maintaining cleaning performance of the electric toothbrush, reducing magnitude of vibration to be transmitted to a user, and improving convenience for the user.

An electrically operated assembly includes a handle housing and a connector for repeatably attaching and detaching a head to and from the assembly. The connector is in direct proximity to a motor having an eccentric weight. The connector is made from a material having an e-modulus that is higher than an e-modulus of the material from which the handle housing is made. A ratio of an overall length extension of the handle housing extending along a longitudinal housing axis to an overall length extension of the connector extending along a longitudinal connector axis is from about 2.5 to about 4.5, and preferably from about 3.0 to about 3.5.

A connector-housing assembly for an electrically operated personal-care implement comprises a housing defining an inner cavity and a connector for repeatably attaching and detaching a head to and from the assembly. The connector has an overall length extension (Lc) extending along a longitudinal connector axis (Xc), the overall length extension (Lc) being composed of a sub-length (Li) extending within the inner cavity of the housing, and a sub-length (Lo) extending outside of the housing, wherein a ratio (Rc) of the length (Li) extending within the inner cavity of the housing to the length (Lo) extending outside of the housing is from about 1.0 to 1.7, preferably from about 1.0 to about 1.5.

A massage accessory for use with an electric toothbrush has a body and a coupling mechanism. The electric toothbrush has a body, and a shaft configured to generate an oscillating movement. The coupling mechanism is configured to couple the massage accessory to the shaft of the electric toothbrush. The body of the accessory has a base at a proximal end of the body, a head at or near a distal end of the body, and a flexible region between the base and the head. The base, the head, and the flexible region are arranged such that the head is configured to move in response to the oscillating movement of the shaft and the base remains relatively stationary compared to the body of the electric toothbrush. A massage accessory for use with an electric toothbrush has a transfer shaft with a driving feature, and a coupling mechanism configured to couple the massage accessory to the shaft of the electric toothbrush. The accessory has a head having a driving feature that is complementary to the driving feature of the transfer shaft. A space is provided between the driving feature of the transfer shaft and the driving feature of the head when the transfer shaft and head are engaged such that oscillating movement of the transfer shaft causes a corresponding oscillating movement of the head and additionally causes vibration of the head.

Embodiments presented provide for an oral hygiene apparatus and method of cleaning such that a consumer may effectively clean dental apparatus with a water based solution to prevent recontamination of the oral cavity.

A handle for an electrically operated personal-care implement includes a housing having a proximal end and a distal end opposite the proximal end, and an inner cavity. A connector for repeatably attaching and detaching a head to and from the handle is partially accommodated within the inner cavity at the proximal end thereof. A motor, located in the housing's inner cavity, has an eccentric weight. The connector includes a recess accommodating the motor with the eccentric weight.

An electrically operated assembly comprises a handle housing defining an inner cavity, a connector for repeatably attaching and detaching a head to and from the assembly, and a motor for operating the assembly, wherein the connector comprises a recess in which the motor is accommodated, and the connector is at least partially made from a material having an e-modulus being higher than the e-modulus of the material from which the handle housing is made.

A manual oral care implement comprises a handle, a connector and a head, the head being repeatedly attachable to and detachable from the handle via the connector. The handle has a distal end and a proximal end opposite to the distal end and adjacent to the head when the head is attached to the handle. The proximal end has an upper surface that is at least partially chamfered. The handle has a longitudinal axis and a cross-sectional area extending substantially perpendicular to the longitudinal axis. The chamfered surface and the cross-sectional area define therebetween an angle α from about 15° to about 30°.

The present invention relates to an electric toothbrush that includes a head part and a handle part having a shape connectable to the head part and supplying a driving voltage to the head part according to a user's control. The head part may include a toothbrush head formed with a plurality of bristle holes where toothbrush bristles are disposed and a first through hole and a second through hole spaced apart from each other, a head body extending from the toothbrush head and having an inner passage connected to the first through hole and the second through hole, a head cover which closes the inner passage of the head body, and a first electrode rod and a second electrode rod inserted through the inner passage of the head body, whose one ends being positioned in the first through hole and the second through hole, respectively, and the other ends being exposed to the outside through the head cover, respectively.

A multi-component housing having a length and comprising at least a first component comprising a first plastic material, a second component comprising a second plastic material, and a third component comprising a third plastic material. The housing includes at least one tolerance-elimination element made of the second plastic material and longitudinally attached to the first component along the housing's longitudinal axis. The tolerance-elimination element has an average length extending parallel to the housing's longitudinal axis, which average length is at least ten times less than the length of the housing. The third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material.