Digital device configuration and method
First Claim
1. A digital data storage apparatus, comprising:
- a housing defining a housing interior;
a rotatable magnetic media supported for rotation within the housing interior;
a head arrangement supported within the housing interior, including an actuator arm configured for pivotally accessing the rotatable media and for pivotally moving to a parked position from an access position;
a flexible circuit arrangement including a flexible circuit stiffener which is directly attached to said housing within the housing interior, said flexible circuit stiffener having a major surface defining a stiffener plane; and
a ramp arrangement that is directly attachable to the flexible circuit stiffener and which ramp arrangement is configured for receiving the actuator arm in said parked position when so attached, said ramp arrangement further including an indexing arrangement for engaging the housing in a way which positions the ramp arrangement within at least one controlled tolerance relative to the head arrangement.
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Accused Products
Abstract
A digital data storage apparatus includes a housing defining a housing interior. A rotatable magnetic media and head arrangement for accessing the media are supported in the housing interior. A flexible circuit stiffener defines a stiffener plane and is directly attached to the housing. A ramp arrangement is directly attachable to the flexible circuit stiffener and is configured for receiving the actuator arm in a parked position when so attached. The ramp arrangement includes an indexing arrangement for engaging the housing in a way which positions the ramp arrangement within at least one controlled tolerance relative to the head arrangement. In one feature, the indexing arrangement is resiliently biased against the housing. In a related feature, the housing defines a ramp indexing recess and an indexing pin of the ramp arrangement is resiliently biased into the indexing recess to locate the indexing pin with the controlled tolerance.
7 Citations
42 Claims
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1. A digital data storage apparatus, comprising:
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a housing defining a housing interior;
a rotatable magnetic media supported for rotation within the housing interior;
a head arrangement supported within the housing interior, including an actuator arm configured for pivotally accessing the rotatable media and for pivotally moving to a parked position from an access position;
a flexible circuit arrangement including a flexible circuit stiffener which is directly attached to said housing within the housing interior, said flexible circuit stiffener having a major surface defining a stiffener plane; and
a ramp arrangement that is directly attachable to the flexible circuit stiffener and which ramp arrangement is configured for receiving the actuator arm in said parked position when so attached, said ramp arrangement further including an indexing arrangement for engaging the housing in a way which positions the ramp arrangement within at least one controlled tolerance relative to the head arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A digital data storage apparatus, comprising:
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a housing defining a housing interior and including a base plate defining an indexing recess;
a rotatable magnetic media supported on the base plate for rotation within the housing interior;
a head arrangement including an elongated actuator arm configured for pivotally accessing the rotatable media within the housing interior and for pivotally moving to a parked position from an access position;
a flexible circuit arrangement including a flexible circuit stiffener which is fixedly attached to said base plate, said flexible circuit stiffener including a side margin and having at least one major surface defining a stiffener plane, said flexible circuit stiffener further defining a through-opening passing through said major surface and a locking pin aperture which is laterally spaced from said through-opening; and
a ramp arrangement that is integrally formed including (i) a first portion for receiving the actuator arm in said parked position, (ii) a second portion receivable in said through-opening for attaching the ramp arrangement directly to the flexible circuit stiffener such that the ramp arrangement is indirectly supported by said base plate, (iii) an indexing pin for receipt in the indexing recess and (iv) a locking pin that is laterally spaced apart from said indexing pin;
an attachment arrangement forming one part of said second portion and another part of the through opening of the flexible circuit stiffener, both of which are cooperatively arranged in a T-lock configuration, for resiliently biasing the indexing pin into the indexing recess in the locked position at least to establish a first controlled tolerance of the ramp arrangement relative to the housing and head arrangment in a direction that is at least generally normal to the stiffener plane and to fix said ramp indexing pin in the stiffener plane within a second controlled tolerance with the ramp arrangement being rotatable from an initial position with the ramp indexing pin initially received in the ramp indexing recess to a locked position and further including a stop configuration, for engaging the side margin of the flexible circuit arrangement in a way which at least prevents further rotation of the ramp arrangement into the side margin, said locking pin rotatably moving with the ramp arrangement to the locked position such that the locking pin is positionable in the locking pin aperture to resiliently rotationally bias the stop configuration of the ramp arrangement against the flexible circuit stiffener, said actuator arm being intended to contact said ramp arrangement at a target contact point when moving to said parked position, with the ramp arrangement in the locked position, so that a radial line is defined between the target contact point and the ramp indexing pin such that an angle of rotation about the ramp indexing pin moves an actual contact point on the ramp arrangement responsive to a cosine of the angle of rotation and said angle of rotation is controlled, at least in part, by a third controlled tolerance between the locking pin and the locking pin aperture.
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22. In producing a digital data storage apparatus, a method comprising the steps of:
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providing a housing defining a housing interior and a rotatable magnetic media supported for rotation within the housing interior;
configuring a head arrangement in the housing interior to include an actuator arm arranged for pivotally accessing the rotatable media and for pivotally moving to a parked position from an access position;
directly attaching a flexible circuit stiffener, forming part of a flexible circuit arrangement, to said housing within the housing interior, said flexible circuit stiffener having a major surface defining a stiffener plane; and
providing a ramp arrangement that is directly attachable to the flexible circuit stiffener and which ramp arrangement is configured for receiving the actuator arm in said parked position when so attached, and configuring said ramp arrangement for engaging the housing using an indexing arrangement in a way which positions the ramp arrangement with at least one controlled tolerance relative to the head arrangement. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification