An oral care implement that includes a handle and an oral care refill head. The oral care refill head is alterable between a first state in which it is separated from the handle and a second state in which it is coupled to the handle. The oral care refill head has a proximal edge surface that defines an opening into a sleeve cavity. The proximal edge surface is inclined with radial distance from a cavity axis of the sleeve cavity. Similarly, the handle has a gripping portion that terminates at a distal end and a stem that protrudes from the distal end. The annular shoulder that is inclined downwardly and away from a stem to facilitate mating of the oral care refill head to the handle. The oral care refill head may have features for securing the oral care refill head to the stem of the handle.

The present invention relates to a modular brush, with improved structure so that modular brush heads of various grades stored inside the storage compartment in the handle, are automatically exposed outwardly from the storage compartment, in connection with the cover opening movement. Thus, anybody can easily interchange one modular brush head with another. In particular, the modular brush is comprised mainly of a handle (10), cover (20), brush head portions (30), mounting portions (40), and lifting portions (50), so that by simple operation, the brush bristles in a gathered state retract into the ferrule tube of the brushhead for protection when not in use.

A shaving brush having interchangeable brush bristles employing fastening cuffs (9) with an internal adaption hoop (12) mounted in a housing (1) on a spring-mounted pedestal (13) openable by a push button (4) in a base (3).

A shaving brush having interchangeable brush bristles employing fastening cuffs (9) with an internal adaption hoop (12) mounted in a housing (1) on a spring-mounted pedestal (13) openable by a push button (4) in a base (3).

A personal care device drive unit comprises a main body housing a motor and enabling releasable connection to any selected one of a set of different functional units. A controller of the personal care device drive unit generates an output signal associated with the selected one of the functional units connected to the main body in dependence on a sensed motor current and a sensed vibration occurring in the main body. The use of both vibration sensing and current sensing (which detects the electrical motor load resulting from driving the selected one of the functional units connected to the main body) enables multiple different functional units to be identified more reliably.

A personal care device drive unit comprises a main body housing a motor and enabling releasable connection to any selected one of a set of different functional units. A controller of the personal care device drive unit generates an output signal associated with the selected one of the functional units connected to the main body in dependence on a sensed motor current and a sensed vibration occurring in the main body. The use of both vibration sensing and current sensing (which detects the electrical motor load resulting from driving the selected one of the functional units connected to the main body) enables multiple different functional units to be identified more reliably.

A toothbrush structure contains: a body, a movable brush, and a protective unit. The body includes a handle, a connecting neck, and a fixed head. The connecting neck is connected with the handle and the fixed head, the fixed head has multiple first orifices for receiving multiple first bristles, and a slot is formed on the fixed head and extends to the handle. The movable brush slides in the slot linearly and includes a push block, a slidable post, and a movable brushing portion. The push block is disposed on the slidable post, and the movable brushing portion is mounted on the slidable post opposite to the push block and has multiple second orifices for receiving multiple second bristles. The slidable post is received in the slot. The protective unit is configured to cover the slot so that the movable brush is limited to slide in the slot.

A skin care device according to an embodiment of the present disclosure includes a brush module mounting part on which a brush module having a brush fixed thereto is mounted, a vibration motor configured to vibrate the brush module mounting part and the brush module in one direction, a rotating shaft formed in the one direction and configured to be fastened to the brush module mounting part, a rotating motor configured to be connected to the rotating shaft, a mounting detection sensor configured to be obtain a sensing value related to a mounting of the brush module, and a controller configured to detect a type of the mounted brush module on the basis of the sensing value and control driving of at least one of the vibration motor and the rotating motor according to a detected type.

A skin care device according to an embodiment of the present disclosure includes a brush module mounting part on which a brush module having a brush fixed thereto is mounted, a vibration motor configured to vibrate the brush module mounting part and the brush module in one direction, a rotating shaft formed in the one direction and configured to be fastened to the brush module mounting part, a rotating motor configured to be connected to the rotating shaft, a mounting detection sensor configured to be obtain a sensing value related to a mounting of the brush module, and a controller configured to detect a type of the mounted brush module on the basis of the sensing value and control driving of at least one of the vibration motor and the rotating motor according to a detected type.

A biodegradable replaceable toothbrush head preferably for an electric toothbrush. The replacement head can be configured to be removably connected and operated by one or more conventional electric power/drive units. Various biodegradable materials can be used alone or in combination for constructing the replacement head and in certain embodiments the biodegradable replacement can be constructed from solely or primarily corn starch or bamboo. In another non-limiting embodiment, the biodegradable replacement head can be construction from about 60-80% polylactic acid, and about 20-40% talcum.