Cleaning device for treating the video head and/or rotating drum of a video recorder and/or playback unit

摘要

A cleaning device (1) for cleaning a video head and drum of a video recorder and/or playback unit comprises a housing (6) within which a carrier arm (28) is pivotally mounted and carries a cleaning brush (29) and is pivotal from a retracted position (28) within the housing (6) to a treating position with the cleaning brush (29) in cleaning engagement with the drum (2) under the action of a torsion spring (33). A retaining rib (48) extending inwardly from a lid (20) of the housing (6) acts on the cleaning brush (29) for retaining the carrier arm (28) and the cleaning brush (29) in the retracted position. An abutment edge (50) on the carrier arm (28) is positioned so that as the housing (6) is being lowered into a cassette receiving area (5) of the video recorder and/or playback unit, the abutment edge (50) is located behind a tape withdrawal roller (3) prior to the retaining rib (48) disengaging the cleaning brush (29). Accordingly, the carrier arm (28) and the cleaning brush (29) are retained in the retracted position by the tape withdrawal roller (3) until the tape withdrawal roller (3) commences to move outwardly of the cassette receiving area (5), thus preventing any danger of the carrier arm and cleaning brush becoming entangled with the tape withdrawal roller (3) or any other tape withdrawal rollers until the tape withdrawal rollers have moved outwardly of the cassette receiving area (5).