A head for an oral care implement comprises a number of colored filaments extending from a mounting surface of the head and being grouped together to define an initial color pattern. The colored filaments comprise at least a first and a second type of filament, wherein the types of filaments differ in color changing characteristics over a pre-defined period of time, the pre-defined period of time being the same for the first and the second type of filament so that the initial color pattern changes color characteristics over at least a first pre-defined period of time to a first color pattern, the first color pattern being different form the initial color pattern.

A cleaning device for removing hair and/or debris from a rotary brush and a method using the same are disclosed herein. The cleaning device includes an elongated rod having a first end, a second end, and a rod axis, the first end of the elongated rod being oppositely disposed relative to the second end of the elongated rod, the elongated rod further including a plurality of protruding elements projecting outwardly from the elongated rod, the plurality of protruding elements being disposed at least partially around a periphery of the elongated rod and along at least a portion of a length of the elongated rod between the first end and the second end. The first end of the elongated rod is configured to be coupled to a rotary motion input device that is sufficient to rotate the plurality of protruding elements of the elongated rod about the rod axis.

The present invention provides a cleaning unit, comprising: a columnar body part having a rotation guide opening formed on the outer circumferential surface thereof; a shaft installed to reciprocate a predetermined distance in the longitudinal direction thereof in a hollow formed in the body part; a drive part that protrudes from the shaft in the radial direction thereof; a brush part that has one side installed on the outer circumferential surface of the body part along the longitudinal direction thereof and rotates on the basis of the one side as a rotation axis; and a driven part that extends from the brush part toward the drive part, passes through the rotation guide opening, and is inserted into a rotation guide groove formed in the drive part. The rotation guide groove extends at a predetermined angle with respect to the longitudinal direction of the shaft, and as the shaft reciprocates, the driven part is guided to rotate by means of the rotation guide groove, and the brush is rotated by means of the rotation of the driven part. The cleaning unit may include a robot cleaner or a cleaner operated by means of a user's operation.

A cleaning system and method can include a leading carriage assembly attached to a brush assembly and can be configured to drive the brush assembly. A trailing carriage assembly can be configured to move along a track. The trailing carriage assembly can be attached to an arm. A vertical support rod can be partially disposed within the arm and can be attached to the brush assembly. A height of the vertical support rod can be positioned by one or more clamps located around the vertical support rod.

A brush (1) intended for industrial use comprises one or more bristle bunches formed by a plurality of elongated bristles, one or more cassette elements having said bristle bunches, and a cassette element holding member (3) at which said cassette elements may be removably secured. At least one of said cassette elements comprises a body, one or more recesses configured to receive said bristle bunches therein, and a securing wire configured to secure said bristle bunches in said recesses. Said at least one cassette element further comprises means configured to counteract movement of the bristles of a bristle bunch with respect to each other and/or with respect to the securing wire.

A surface cleaning apparatus comprising a cleaning head and a brushroll. The cleaning head includes a cleaning head body having an agitator chamber including an opening on an underside of the cleaning head body. The brushroll is rotatably mounted to the cleaning head body such that a portion of the brushroll extends below the underside for directing debris into the opening. The brushroll includes an elongated body extending laterally between a first and second end region, a slit opening extending between the first and second end region, angular stationary teeth extending proximate to an edge of the slit opening, and a cutting blade configured to be at least partially received within the slit opening and to move laterally between the first and second end regions. The cutting blade bar includes teeth that are configured to engage with the stationary teeth to cut hair.

The present disclosure describes absorbent articles that include an absorbent core. The absorbent core extends longitudinally along a crotch portion of the absorbent article. The absorbent core includes a channel having one or more pathways extending longitudinally along the absorbent core. The channel is substantially free of absorbent material. In some implementations, the channel includes a single pathway. In other implementations, the channel includes multiple pathways.

A brush assembly comprises a support rotatable about an axis and an annular brush essentially consisting of a brush band and an array of bristles connected thereto and projecting radially therefrom. The brush band and the bristle array extending on the support obliquely to a perpendicular to the axis of the support. Thus a longitudinal extension of the band and also the bristle array are connected to the support extending at an angle to the axis deviating from a perpendicular orientation with respect to the axis of the support.

A rotatably driven machine tool has a tool holder rotatable about an axis and having at least one drive-side part and a tool-side part, both parts being detachably connected to each other for picking up and holding a rotary tool. A bayonet connection couples the tool-side part and the drive-side part to each other.

According to one embodiment, a cleaner head includes a first rotor, a second rotor, and a contact surface. The first rotor can be rotationally driven in a state where an outer peripheral surface of the first rotor is in contact with a sheet that includes organic fiber and is formed on a base, and can remove a part of the sheet from the base. The second rotor is arranged next to the first rotor in a direction along a rotation axis of the first rotor, and is rotated together with the first rotor in a state where the second rotor is not in contact with the sheet. The contact surface is in contact with an outer peripheral surface of the second rotor at a position away from the sheet around the rotation axis.