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US 12,042,348 B2Granted
Electrical appliance for personal care
AssigneeTrisa Holding AG
InventorsArmin Bärtschi, Herbert Fischer, Michael Schär
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AssigneeTrisa Holding AG
InventorsArmin Bärtschi, Herbert Fischer, Michael Schär
Estimating the term…
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.
A toothbrush comprising a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein the handle comprises a hand body with a base body and the plug-on part comprises a base body, wherein a plug-shaped coupling structure protrudes from the handle, which plug-shaped coupling structure forms an interface with a substantially mirror-inverted socket-shaped 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 comprises a rotation-preventing means 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, wherein the at least two stages are not concentrically arranged.
A toothbrush comprising a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein the handle comprises a hand body with a base body and the plug-on part comprises a base body, wherein a plug-shaped coupling structure protrudes from the handle and forms an interface with a substantially mirror-inverted socket-shaped coupling structure of the plug-on part, wherein the interface has at least two stages with different circumferential geometry, wherein a stop surface between the handle and the plug-on part extends obliquely with respect to the longitudinal axis of the handle, and wherein the handle has a cam which cooperates with a mirror-inverted recess of the plug-on part in the manner of a snap-fit connection, wherein the cam is not arranged at a first stage of the at least two stages, seen from a free end of the plug-shaped coupling structure.
A toothbrush comprising a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein the handle comprises a hand body with a base body and the plug-on part comprises a base body, wherein a plug-shaped coupling structure protrudes from the handle, which plug-shaped coupling structure forms an interface with a substantially mirror-inverted socket-shaped 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 comprises a rotation-preventing means 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, wherein the stop surface and the longitudinal axis of the handle enclose an angle a of between 30° and 70°.
Dependencies are inferred from the claim text.