Rotary magnetic head cleaning mechanism with rotating roller having flaps

A head cleaning mechanism for cleaning a rotary magnetic head mounted in a head drum of a helical scan recording/reproducing apparatus, in which the rotary magnetic head is movable along a circular path for recording a signal on or for reproducing a signal from a magnetic recording medium, comprising:

• a mount base;
• a motor bracket fixedly mounted on said mount base;
• a vertical support shaft projecting from said motor bracket;
• a base arm assembly rotatably mounted on said vertical support shaft including a stopper arm and a pressable arm;
• a roller support arm rotatably mounted on said vertical support shaft above said base arm assembly;
• a rotatable cleaning roller rotatably mounted on said roller support arm for movement into contact with said rotary magnetic head mounted in said head drum, said cleaning roller being rotatable upon contact with said rotary magnetic head;
• first resilient means extending between said roller support arm and said base arm assembly for connecting said roller support arm and said base arm assembly and for biasing said roller support arm to rotate with respect to said base arm assembly in a direction to move said cleaning roller into Contact with said rotary magnetic head;
• second resilient means for biasing said base arm assembly so that said stopper abuts said motor bracket and said cleaning roller is out of contact with said magnetic rotary head mounted in said head drum;
• a first spring pin projecting from an upper surface of said pressable arm;
• and
• a second spring pin projecting from an upper surface of said roller support arm,
• wherein said first resilient means comprises a spring having a first end attached to said first spring pin and a second end attached to said second spring pin and said cleaning roller comprises a cylindrical sleeve mounted for rotation and a plurality of flaps radially joined to said sleeve.

A head cleaning assembly for cleaning a rotary magnetic head mounted in a head drum of a helical scan recording/reproducing apparatus, in which the rotary magnetic head is movable along a circular path for recording a signal on or reproducing a signal from a magnetic recording medium comprising:

• a chassis having a guide groove formed therein;
• a motor bracket fixedly mounted on said chassis comprising an arm support wing and a vertical support shaft projecting upwardly from said arm support wing;
• a tape loading block including a movable base movable in said guide groove;
• a swing arm assembly rotatably mounted on said support shaft of said motor bracket including a pressable arm and a roller support arm formed integrally with said pressable arm and comprising a roller support end and a stopper, said swing arm assembly further comprising a cylindrical pivot fitted over said vertical support shaft for rotatably mounting said swing arm assembly on said motor bracket;
• a resilient engaging lever projecting upwardly from said arm support wing of said motor bracket;
• an engaging tooth projecting radially outwardly from said cylindrical pivot of said swing arm assembly for engagement with said engaging lever to snap said swing arm assembly onto said vertical support shaft to secure said swing arm assembly to said chassis;
• a rotatable cleaning roller rotatably mounted on said roller support end of said roller support arm;
• and
• resilient means for biasing said swing arm assembly so that said stopper abuts said motor bracket and said cleaning roller is out of contact with said magnetic rotary head mounted in said head drum, wherein said swing arm assembly is movable so that said cleaning roller comes into contact with said magnetic rotary head when said movable base of said tape loading block engages said pressable arm,
• said rotatable cleaning roller comprising a cylindrical sleeve mounted for rotation and a plurality of flaps radially joined to said sleeve.