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1. WO2008022082 - TOLERANCE RING HAVING VARIABLE HEIGHT AND/OR ASSYMMETRICALLY LOCATED BUMPS

Publication Number WO/2008/022082
Publication Date 21.02.2008
International Application No. PCT/US2007/075824
International Filing Date 13.08.2007
IPC
G11B 5/55 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads relative to record carriers
54with provision for moving the head into, or out of, its operative position or across tracks
55Track change, selection, or acquisition by displacement of the head
CPC
F16C 11/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
11Pivots; Pivotal connections
04Pivotal connections
F16C 2370/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2370Apparatus relating to physics, e.g. instruments
12Hard disk drives or the like
F16C 27/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
27Elastic or yielding bearings or bearing supports, for exclusively rotary movement
F16D 1/0835
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
1Couplings for rigidly connecting two coaxial shafts or other movable machine elements
06for attachment of a member on a shaft or on a shaft-end
08with clamping hub; with hub and longitudinal key
0829with radial loading of both hub and shaft by an intermediate ring or sleeve
0835due to the elasticity of the ring or sleeve
G11B 25/043
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
25Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing ; , e.g. dictating apparatus; Combinations of such apparatus
04using flat record carriers, e.g. disc, card
043using rotating discs
G11B 5/4813
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads ; or head supports; relative to record carriers
4806specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
4813Mounting or aligning of arm assemblies, e.g. actuator arm supported by bearings, multiple arm assemblies, arm stacks or multiple heads on single arm
Applicants
  • INTRI-PLEX TECHNOLOGIES, INC. [US]/[US] (AllExceptUS)
  • HANRAHAN, Kevin, P. [US]/[US] (UsOnly)
  • SCHMIDT, Ryan, J. [US]/[US] (UsOnly)
  • DEXTER, David, D. [US]/[US] (UsOnly)
Inventors
  • HANRAHAN, Kevin, P.
  • SCHMIDT, Ryan, J.
  • DEXTER, David, D.
Agents
  • GESS, Albin, H.
Priority Data
11/504,31615.08.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TOLERANCE RING HAVING VARIABLE HEIGHT AND/OR ASSYMMETRICALLY LOCATED BUMPS
(FR) ANNEAU DE TOLÉRANCE PRÉSENTANT UNE HAUTEUR VARIABLE ET/OU DES BOSSES DISPOSÉES DE FAÇON ASYMÉTRIQUE
Abstract
(EN)
A tolerance ring configured to reduce torque ripple for a pivot bearing in an actuator arm assembly. The tolerance ring comprises a cylinder having a predetermined length, and a first and a second row of contacting portions arranged around the surface of the cylinder, the contacting portions of the second row are circumferentially displaced with respect to the first row by a distance greater than zero but less than the distance of the contacting portion and the spacing between adjacent contacting portions in the first row.
(FR)
L'invention concerne un anneau de tolérance configuré pour réduire l'ondulation de couple pour un coussinet de pivotement dans un ensemble de bras d'actionnement. L'anneau de tolérance comprend un cylindre présentant une longueur prédéterminée, et des première et deuxième rangées de parties de contact agencées autour de la surface du cylindre, les parties de contact de la deuxième rangée étant déplacées de façon circonférentielle par rapport à la première rangée d'une distance supérieure à zéro mais inférieure à la distance entre la partie de contact et l'espace entre les parties de contact voisines dans la première rangée.
Latest bibliographic data on file with the International Bureau