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US 2003/0156530 A1Published application
Data storage disc carrier
AssigneeWestwind Air Bearings Ltd.
InventorRobin J W Powell
Life of this patent
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AssigneeWestwind Air Bearings Ltd.
InventorRobin J W Powell
Estimating the term…
A disc holder for holding at least one media storage disc (15) during rotation. The holder comprises a central hub (11) arranged for rotation about a central axis. The hub (11) includes resilient centring arms (18) which are arranged to provide an outwardly directed centring force on an internal bore of a carried disc (15) in order to centre the carried disc about the axis of rotation of the hub. The arms (18) are disposed in, and movable in, planes which are substantially perpendicular to the axis of rotation of the hub. The disc holder may be arranged for carrying a stack of axially spaced media storage discs (15) and may include axial gripping means for holding the stack together. The gripping means comprises a central shaft (17) which is held in position by ball shaped clamps (21) which are spring loaded against inclined surfaces.
A disc holder for holding at least one media storage disc during rotation, said holder comprising a central hub arranged for rotation about a central axis and comprising means for carrying at least one media disc, wherein said hub comprises resilient centring means comprising at least one plurality of resilient arms arranged to provide an outwardly directed centring force on an internal bore of a carried disc in order to centre the carried disc about the axis of rotation of the hub, the plurality of arms being disposed in, and movable in, a plane which is substantially perpendicular to the axis of rotation of the hub.
A disc holder according to any preceding claim in which the resilient centring means comprises at least three resilient centring arms acting on the or each disc.
A disc holder according to any preceding claim in which the arms are arranged in a configuration which provides equalised centring forces around the rotational axis.
A disc holder according to any preceding claim in which the arms are in the form of arcuate leaf springs.
A disc holder according to any preceding claim which the arms are each formed of material integral with the hub.
A disc holder according to any preceding claim in which each arm is located at the edge of a generally circular aperture.
A disc holder according to any preceding claim which comprises axial gripping means to ensure that the or each carried disc and the hub rotate as a whole.
A disc holder for holding at least one media storage disc comprising axial gripping means for gripping the or each carried disc, which gripping means comprises a central shaft which is held in position by at least two clamps which are spring loaded against inclined surfaces.
Dependencies are inferred from the claim text.