Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Reexamination Certificate
2001-01-02
2004-06-29
Letscher, George J. (Department: 2653)
Dynamic information storage or retrieval
With particular cabinet structure
Slotted for edgewise insertion of storage disc
Reexamination Certificate
active
06757234
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a disk device which can load different type of information recording media, such as a CD (compact disk) used as a single disk and an MD (minidisks) used in cartridge stored form, at different times on a turntable and thereafter eject such media from the turntable.
2. Description of the Related Art
FIG. 1
is a schematic view of a conventional disk device. In the figure, reference numeral
1
denotes a disk,
2
is a chassis,
3
is a drive unit,
3
a
is a first engaging pin,
3
b
is a second engaging pin,
3
c
is a third engaging pin,
4
is a turntable,
5
is a clamp,
6
is a damp link,
15
is a first locking plate,
15
A and
16
f
are tapered portions,
15
B is a locking portion,
16
is a second locking plate.
This disk device is characterized in that the drive unit
3
is locked in an inclined position. Furthermore, the playing section is locked by the first locking plate
15
and the second locking plate
16
in a center portion of the chassis
2
. The drive unit
3
is locked at both the front and rear ends so as to be extended on both sides.
Since the conventional disk device is constructed as above, locking members for locking the playing section such as a first lock plate
15
and a second lock plate
16
are required, thereby increasing the number of components.
Furthermore, since the playing section is locked at the center of the chassis
2
, the problem that the section of the disk projecting from the device during ejection is reduced has arisen.
SUMMARY OF THE INVENTION
The present invention is proposed to solve the above problems and has the object of providing a disk device which can reduce the number of components necessary for locking the playing section such as a drive unit within the chassis during the loading and ejection operations of the disk, realize a compact and simplified structure with an improved reliability and increase the degree to which the disk projects from the device during ejection.
The disk device of the present invention is provided with a lock mechanism for displacing a playing section supported through a shock-absorbing member on an outer chassis towards a disk insertion mouth by the movement of a movable member for performing loading and ejecting operations, said movable member forming a section of the playing section, said lock mechanism fixing and locking the playing section by pressing a portion of the playing section against a wall component of the outer chassis situated on a side of said disk insertion mouth.
By such an arrangement, increase in the number of components can be avoided, since the fixation of the playing section in the outer chassis during loading and ejecting operations of the disk is realized without an additional member. Thus, it is possible to provide a disk device with a compact and simplified structure as well as an improved reliability. Furthermore, it is possible to increase the degree to which the disk projects during ejection.
The disk device of the present invention may be adapted to displace the playing section towards the disk insertion mouth by abutment of the locking projection with a wall component of the outer chassis situated on the back side of the device, which is caused by displacement of the cam flap towards the back side of the device, thereby to fix and lock the playing section by pressing said portion of the playing section against the wall component of the outer chassis situated on the side of the disk insertion mouth.
By such an arrangement, increase in the number of components can be avoided, since the fixation of the playing section in the outer chassis during the loading and ejection operation of the disk is realized by the locking projection, which protrudes together with the displacement of the cam flap towards the back side of the device, without an additional member. Thus, it is possible to provide a disk device with a compact and simplified structure and with an improved reliability. Furthermore, it is possible to increase the degree to which the disk projects during ejection.
REFERENCES:
patent: 4-263160 (1992-09-01), None
patent: 8-7531 (1996-01-01), None
patent: 11-66679 (1999-03-01), None
Birch & Stewart Kolasch & Birch, LLP
Letscher George J.
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