Latching apparatus of hard disk drive using bimetal
AssigneeSamsung Electronics Co., Ltd.
InventorDeok-hwan Jang
Life of this patent
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Abstract
A latching apparatus of a hard disk drive using a bimetal which includes a locking/releasing device for selectively locking/releasing an actuator for protecting a magnetic disk from being damaged by a magnetic head. A bimetal member operates the locking/releasing by heat expanding and shrinking according to whether an electric power is being applied. A heating device operates bimetal member. Preferably, the heating device is made of tantalum-aluminum(TaAl) alloy or nickel-chrome(NiCr) alloy.
Claims36
A latching apparatus of a hard disk drive using a bimetal, comprising:
- a locking/releasing mechanism which selectively locks/releases an actuator for protecting a magnetic disk from being damaged by a magnetic head;
- a bimetal member for operating said locking/releasing mechanism by heat expanding and shrinking according to whether an electric power is applied;
- a housing for receiving said bimetal member;
- an operating member perpendicular to and centrally positioned above said bimetal member, said operating member being supported by said housing so as to be exposed outwardly from said housing and operating said locking/releasing mechanism by being manipulated with a heat expanding and shrinking operation of said bimetal member;
- and
- a heater which heats said bimetal member.
A latching apparatus of a hard disk drive using a bimetal, comprising:
- a locking/releasing mechanism which selectively locks/releases an actuator for protecting a magnetic disk from being damaged by a magnetic head;
- a bimetal member for operating said locking/releasing mechanism by heat expanding and shrinking according to whether an electric power is applied or not;
- a housing for receiving said bimetal member;
- an operating member perpendicular to and centrally positioned above said bimetal member, said operating member being supported by said housing to be exposed outwardly from said housing and operating said locking/releasing mechanism by being manipulated with a heat expanding and shrinking operation of said bimetal member;
- a base member of which a periphery is fixed to an inside of said housing;
- and
- a heater, which heats said bimetal member, being formed on said base member.
A latching apparatus of a hard disk drive using a bimetal, comprising:
- a locking/releasing mechanism which selectively locks/releases an actuator for protecting a magnetic disk from being damaged by a magnetic head;
- a bimetal member operating said locking/releasing mechanism by heat expanding and shrinking according to whether an electric power is applied;
- a housing for receiving said bimetal member;
- a bimetal holder formed on an inside wall of said housing and which fixes said bimetal member;
- a base member of which a periphery is fixed to an inside of said housing;
- a heater, which heats said bimetal member, being formed on said base member;
- an operating member which is supported by said housing to be exposed outwardly from said housing and operates said locking/releasing mechanism which is manipulated with a heat expanding and shrinking operation of said bimetal member;
- and
- said housing having a guiding hole which guides said operating member,
- wherein said operating member is elastically supported by a first elastic member toward one direction of said housing, said first elastic member being disposed in said housing and comprising a compression coil spring which cooperates with said operating member and has one end portion supported by a hooking protrusion of said operating member and another end portion supported by the inside wall of said housing.
Dependencies are inferred from the claim text.