Recording device for disk contained in cartridge

Details Recording device for disk contained in cartridge Recording device for disk contained in cartridge

2000-03-01

2001-07-24

Ometz, David L. (Department: 2754)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

C369S077210

Reexamination Certificate

active

06266209

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a device for recording data on a disk as accommodated in a cartridge.
BACKGROUND OF THE INVENTION
A recording medium is already in use which comprises a disk
60
accommodated in a rectangular cartridge
6
formed at a side portion thereof with a window
62
for exposing the disk as shown in
FIGS. 20
, (
a
) and (
b
) (see JP-A No. 298799/1993). The window
62
is opened or alternatively closed with a shutter
61
which is slidable on the cartridge
6
. The shutter
61
has a side wall formed with a small hole
63
. The cartridge
64
has a first slit
64
formed in a side wall thereof where the shutter
61
is provided, and a second slit
65
in another side wall thereof opposite to the shutter
61
. The shutter
61
is engaged with the cartridge
6
by a lock mechanism (not shown). When the cartridge
6
is inserted into a recording device, an unlocking piece
29
in the recording device advances into the first slit
64
, unlocking the shutter
61
and pushing the shutter open.
FIG. 21
is a side elevation showing the relationship in position between a mechanical deck
100
for receiving the cartridge
6
as inserted and a cabinet
4
housing the deck
100
. The cabinet
4
has a front opening which is provided with a pivotal panel
42
pivoted at its upper end to the cabinet
4
. The cartridge
6
is inserted into the mechanical deck
100
while opening the pivotal panel
42
.
FIG. 17
is an exploded perspective view of the mechanical deck
100
. In the following description, the side of the deck
100
at which the cartridge
6
is delivered from the deck
100
will be referred to as the “delivery side,” the direction in which the cartridge advances as “forward,” and the direction in which the cartridge is delivered as “rearward.” The mechanical deck
100
comprises the combination of an inner holder
2
into which the cartridge
6
is inserted from the front opening, and an outer holder
3
covering the upper side of the inner holder
1
. The combination is mounted on a chassis
1
, which is secured to the bottom wall of the cabinet
4
.
A pickup
75
and turntable
76
are provided on the chassis
1
as well known. A head lever
7
biased downward and carrying a recording head
70
at its distal end is attached by a bracket
71
to the pickup
75
. The head lever
7
is moved upward and downward by a head lift mechanism (not shown) mounted on the chassis
1
.
A kickout lever
8
having a cutout
86
formed in a peripheral edge portion thereof is pivotally supported on the upper side of the inner holder
2
. Disposed forwardly of the kickout lever
8
is a stopper piece
17
provided upright on the chassis
1
. The kickout lever
8
is biased by a tension spring
85
toward the cartridge delivery side into contact with a stopper
210
on the upper side of the inner holder
2
.
The kickout lever
8
has one end bent downward to provide a push lug
80
pushable by the cartridge
6
. The outer holder
3
is provided over the inner holder
2
. Pins
220
,
220
projecting from each of opposite side walls of the inner holder
2
are fitted in cam slots
30
formed obliquely in a side wall of the outer holder
3
. Projections
37
project outward from each of opposite side walls of the outer holder
3
. One of these side walls has a grip
31
projecting outward and to be pulled by the user when the cartridge
6
is to be delivered.
Each of opposite side walls of the chassis
1
has guide grooves
18
for the respective projecting pins
220
to fit in and horizontal slots
19
for the respective projections
37
to fit in. Each guide groove
18
has a horizontal portion
18
a
and a vertical portion
18
b continuous therewith. A spring retainer
38
projects from the rear end of one side wall of the outer holder
3
.
FIGS.
19
(
a
) and (
b
) are side elevations of the mechanical deck
100
. A tension spring
9
extends from the spring retainer
38
to the chassis
1
, biasing the outer holder
3
toward the direction of insertion of the cartridge
6
.
FIGS.
18
(
a
) and (
b
) are plan views of the mechanical deck
100
. When the cartridge
6
is inserted into the inner holder
2
in a standby state shown in FIG.
18
(
a
), the cartridge
6
pushes the push lug
80
against the tension spring
85
, rotating the kickout lever
8
counterclockwise, whereby the cutout
86
of the lever
8
is opposed to the stopper piece
17
, allowing the inner holder
2
to advance a distance corresponding to the depth of the cutout
86
.
The inner holder
2
is provided inside thereof with a projecting piece (not shown) fittable in the second slit
65
of the cartridge
6
. When the rear end of the second slitted portion
65
pushes the projecting piece on the inner holder
2
, each projecting pin
220
on the inner holder
2
in the state shown in FIG.
19
(
a
) slidingly moves along the horizontal portion
18
a
of the guide groove
18
to push the cam slotted portion
30
of the outer holder
3
. The outer holder
3
pushed by the inner holder
2
has its projections
37
fitted into the respective horizontal slots
19
of the chassis
1
and slidingly moves horizontally.
Upon each projecting pin
220
reaching the front end of the horizontal portion
18
a,
the inner holder
2
descends, and the pin
220
reaches the lower end of the vertical portion
18
b
as seen in FIG.
19
(
b
). The cartridge
6
descends while holding the kickout lever
6
in its pushed position. The inner holder
2
lies on the chassis
1
with the cartridge
6
placed therein. The outer holder
3
biased forward by the tension spring
9
biases the inner holder
2
forwardly downward through the projecting pins
220
, biasing the cartridge
6
toward the turntable
76
.
However, the conventional device has the following problems.
1. The chassis
1
is fixed to the cabinet
4
, and the inner holder
2
is movable upward and downward above the chassis
1
. Since none of parts such as pickup
75
can be provided in the space for the inner holder
2
to pass through for upward and downward movement, a dead space corresponding to the amount of up-down movement of the inner holder
2
is formed inside the cabinet
4
. The space presents an obstacle to a reduction in the thickness of the device.
2. The cartridge
6
is horizontally inserted into the cabinet
4
and then descends. If the distance of descent is small, therefore, the pivotal panel
42
is pushed open once by the cartridge
6
moving horizontally as shown in FIG.
22
(
a
) and is likely to be thereafter held semiopen by the cartridge
6
as loaded in position as shown in FIG.
22
(
b
). The semiopen panel
42
has a poor appearance, making the user feel as if the cartridge
6
were caught by an obstacle in the course of descent.
To eliminate this semiopen state, it is necessary to prevent the contact of the lower end of the pivotal panel
42
with the upper surface of the cartridge
6
by increasing the distance of descent of the cartridge
6
or lengthening the distance between the panel
42
and the mechanical deck
100
. In either case, the device then becomes greater in size. Further there is a need to provide a mechanism for opening the panel
42
when the cartridge
6
is to be delivered. This requires a complex mechanism.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a compacted recording device of reduced thickness for use with a cartridge as loaded therein.
An inner holder
2
is attached to a cabinet
4
, and a chassis
1
positioned between the inner holder
2
and the cabinet
4
is movable upward and downward relative to the inner holder
2
.
In this case, a space
44
for accommodating a pickup
75
, etc. needs to be provided on the rear side of the chassis
1
(see FIG.
15
). The chassis
1
moves upward and downward in this space
44
. Thus, the space
44
for accommodating the pickup, etc. and the space for the upward and downward movement of the chassis
1
can be both provided under the chassis
1
to effectively utilize the interior space of the device. Th

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