Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Details of exterior front face
Reexamination Certificate
2002-08-14
2004-10-19
Chen, Tianjie (Department: 2652)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Details of exterior front face
Reexamination Certificate
active
06807669
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a device for accommodating a cartridge having enclosed therein a disk serving as a recording medium, and more particularly to a disk recording or playback apparatus.
BACKGROUND ART
FIG. 16
shows a cartridge
6
already proposed for enclosing therein a disk
60
serving as a recording medium. The cartridge
6
is provided on its upper wall with a slidable shutter
63
, which partly exposes the disk
60
when opened. Positioning bores
61
,
62
are formed in the lower wall of the cartridge
6
.
FIG. 17
is a side elevation of an apparatus for recording signals on or reproducing signals from the disk
60
serving as a recording medium. In the following description, the direction in which the cartridge is inserted into the apparatus will be referred to as “front,” and the direction in which it is ejected as “rear.”
A holder
4
for placing the cartridge
6
therein has its base end pivoted as at
4
a
to one end of a chassis
5
having a turntable
7
mounted thereon. Provided between the holder
4
and the chassis
5
is a latch mechanism (not shown) for holding the holder
4
closed. Arranged at each of the front and rear ends of the chassis
5
are positioning pins
52
,
52
fittable into the positioning bores
61
,
62
of the cartridge
6
. Each of the positioning pins
52
comprises a solid cylindrical prop
58
for supporting the bottom of the cartridge
6
, and a conical guide projection
59
projecting upward from the top of the prop
58
. The peripheral wall portions defining the positioning bores
61
,
62
of the cartridge
6
descend while being guide by the respective projections
59
and rest on the tops of the props
58
.
The holder
4
has an open free end, through which the cartridge
6
is inserted. The pivot
4
a
of the holder
4
has a torsion spring
49
fitted therearound for biasing the holder
4
upward. A rod
47
projecting from a side wall of the holder
4
is engaged in an upper end of a circular-arc slit
48
formed in a side wall of the chassis
5
to prevent the holder
4
from rising to a higher position.
When signals are to be recorded or reproduced, the cartridge
6
is first manually inserted into the holder
4
in a raised position. The positioning bores
61
,
62
of the cartridge
6
are opposed to the positioning pins
52
,
52
. The holder
4
is then pivotally moved down by hand. The positioning bores
61
,
62
are fitted around the guide projections
59
of the positioning pins
52
,
52
, the disk
60
is placed on the turntable
7
, and signals are recorded or reproduced.
When signals are to be recorded or reproduced by positioning the cartridge
6
as opposed to the turntable
7
, the above apparatus requires insertion of the cartridge
6
into the holder
7
and pushing of the holder
4
downward, namely, two manual movements. The present applicant has conceived the idea of making the apparatus more convenient to use by reducing this procedure to a single manual movement.
An object of the present invention is to position the cartridge as opposed to the turntable by a single manual movement.
DISCLOSURE OF THE INVENTION
A holder
4
has a spring attached to a base end thereof for biasing the holder
4
in a closing direction and a door
1
pivoted as at
1
a
to a free end thereof. The door
1
has a contact face positioned at a cartridge ejecting side of the pivot
1
a
and inclined with respect to the direction of insertion of a cartridge, and a kickout piece
12
positioned at a cartridge inserting side of the pivot
1
a
and movable into contact with a chassis
5
when the holder
4
is raised. The door
1
is biased by a spring in a direction for the contact face to close an opening of the holder
4
. The door
1
is movable between an opened position in which the contact face is pushed by the cartridge
6
to expose the opening of the holder
4
when the cartridge
6
is inserted, and the kickout piece
12
pushes the chassis
5
to lift the holder
4
against the biasing force of the spring and a closed position in which the contact face returns in a direction to close the opening after the contact face is released from the cartridge
6
as the cartridge
6
is further inserted to permit descent of the holder
4
.
REFERENCES:
patent: 4530081 (1985-07-01), Sakurai et al.
patent: 4686594 (1987-08-01), Kurafuji
patent: 6243346 (2001-06-01), Furukawa et al.
patent: 6377451 (2002-04-01), Furuya
patent: 1-59953 (1989-04-01), None
patent: 5-205379 (1993-08-01), None
patent: 6-282977 (1994-10-01), None
patent: 11-40954 (1999-02-01), None
patent: 2000-67501 (2000-03-01), None
Notification from the International Bureau (Form PCT/IB/338).
Translation of the International preliminary Examination Report.
Armstrong Kratz Quintos Hanson & Brooks, LLP
Chen Tianjie
Sanyo Electric Co., LTD
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