EP0684603A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Disk apparatus
Assignee: Panasonic Holdings Corp
•
Filing: 1995-05-24
•
Granted: —
•
Expires: 2015-05-24
Abstract
Abstract A disk apparatus is disclosed. A movable chassis assembly having a turntable and a pickup head is detachably supported on elastic members by a stationary chassis assembly with the lock mechanism of the stationary chassis assembly engaged with lock pins disposed on the movable chassis. A holder located on the movable chassis assembly for holding a disk cartridge to load or eject the disk cartridge is transported by a loader located on the stationary chassis assembly in a predetermined transport direction. Pin driving means located in the loader disengages lock pins when the lock mechanism is touched by the pin driving means at the end of the loading operation of the disk cartridge. A pair of pivoting cross links are connected at their crossings by a support pin that is engaged with a first guide slot in the stationary chassis assembly. One end of each of the pair of cross links is slidably engaged with a guide slot in the loader. The other end of each of the pair of cross links is slidably engaged with a guide slot in the stationary chassis. This arrangement eliminates variations in the load during loading and ejecting operations. A stable operation of the disk apparatus is thus assured. The disk apparatus prevents a double insertion of cartridges and an incorrect insertion, freeing the cartridge and disk apparatus from physical damage.
Inventors
- 👤 Eiichi Ookawa
- 👤 Hiroto Nishida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/12; G11B33/121; G11B17/00; G11B17/02; G11B17/04; G11B17/0401; G11B17/0405; G11B17/0407
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
266 words
A disk apparatus comprising: a stationary chassis assembly, a movable chassis assembly supported through elastic members to the stationary chassis assembly and provided with a turntable and a pickup head, a mechanical lock mechanism which is located on the stationary chassis assembly, for releasably gripping lock pins of the movable chassis assembly, so as to secure the movable chassis assembly to the stationary chassis assembly, a holder located on said movable chassis assembly, for holding a disk cartridge in order to load or eject the disk cartridge, a loader located on the stationary chassis assembly, for transporting the holder in a predetermined transport direction, and pin driving means located on the loader for disengaging lock pins locked by the mechanical lock mechanism by touching the mechanical lock mechanism at the end of the loading operation of the disk cartridge, and for locking the lock pins with the mechanical lock mechanism by touching the mechanical lock mechanism at the beginning of the ejecting operation of the disk cartridge, whereby a guide slot is located along the transport direction in the surface portion of the stationary chassis assembly, one end of each of a pair of pivoting cross links that are coupled at their crossing parts in the middle portions thereof by a fulcrum pin is slidably engaged with a guide slot formed in the loader, the other end of each of the pair of pivoting cross links is slidably engaged with a guide slot formed in the stationary chassis assembly, and the fulcrum pin is slidably engaged with the guide slot formed in the stationary chassis assembly.
Claim 2
Dependent Claim
212 words
A disk apparatus comprising: a stationary chassis assembly, a movable chassis assembly supported by the stationary chassis assembly with elastic members therebetween and provided with a turntable and a pickup head, a mechanical lock mechanism which is located on the stationary chassis assembly, for releasably gripping supports lock pins of the movable chassis assembly in order to secure the movable chassis assembly to the stationary chassis assembly, a holder located on the movable chassis assembly for holding a disk cartridge in order to load or eject the disk cartridge, a loader located on the stationary chassis assembly, for transporting the holder in a predetermined transport direction, and pin driving means located on the loader for disengaging lock pins locked by the mechanical lock mechanism by touching the mechanical lock mechanism at the end of the loading operation of the disk cartridge and for locking the lock pins with the mechanical lock mechanism by touching the mechanical lock mechanism at the beginning of the ejecting operation of the disk cartridge, whereby the stationary chassis assembly is provided with a cartridge double-insertion preventing mechanism in which a cartridge double-insertion preventing member is positioned at a cartridge entry opening in the stationary chassis assembly after the loading operation of the disk cartridge by the holder.
Claim 3
Dependent Claim
85 words
The disk apparatus according to claim 2, wherein said cartridge double-insertion preventing mechanism comprises a first connecting bar moved by the movement of the loader, a second connecting bar pivoted by the movement of the first connection bar against the urging a spring, and a protector that is guided along a guide slot formed in the surface part of the stationary chassis assembly by the pivotal motion of the second connecting bar in order to move a double-insertion preventing pin to the cartridge entry opening.
Claim 4
Dependent Claim
206 words
A disk apparatus comprising: a stationary chassis assembly, a movable chassis assembly supported by the stationary chassis assembly with elastic members therebetween and provided with a turntable and a pickup head, a mechanical lock mechanism which is located on the stationary chassis assembly, for releasably gripping lock pins of the movable chassis assembly in order to secure the movable chassis assembly to the stationary chassis assembly, a holder located on the movable chassis assembly for holding a disk cartridge in order to load or eject the disk cartridge, a loader located on the stationary chassis assembly, for transporting the holder in a predetermined transport direction, and pin driving means located on the loader for disengaging lock pins locked by the mechanical lock mechanism by touching the mechanical lock mechanism at the end of the loading operation of the disk cartridge, and for locking the lock pins with the mechanical lock mechanism by touching the mechanical lock mechanism at the beginning of the ejecting operation of the disk cartridge, an abutment portion that abuts the disk cartridge when the disk cartridge is incorrectly inserted, and a cartridge correct-insertion sensor mechanism that recognizes a correct cartridge insertion when a sensor switch is activated by a correctly inserted cartridge.
Claim 5
Dependent Claim
100 words
The disk apparatus according to claim 4, wherein said correct-insertion sensor mechanism comprises a sensor plate that moves while touching the end portion of the disk cartridge when the disk cartridge is inserted into the holder, a sensor portion having a sensor lever that is pivoted by the movement of the sensor plate against the urging of a spring, a sensor coupling lever located on the stationary chassis assembly and moved by the sensor lever against the urging of a spring, and a sensor switch lever pivoted by the movement of the sensor coupling lever to activate a sensor switch.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.