Dynamic information storage or retrieval – With particular cabinet structure – Slotted for edgewise insertion of storage disc
Reexamination Certificate
1999-10-19
2004-06-15
Chen, Tianjie (Department: 2652)
Dynamic information storage or retrieval
With particular cabinet structure
Slotted for edgewise insertion of storage disc
Reexamination Certificate
active
06751179
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a disk device comprising a conveying unit for conveying a disk inserted into the chassis from a disk insertion aperture to a playing unit, conveying the disk which has been conveyed by the conveying unit from the playing unit to the disk insertion aperture and expelling the disk to the outside of the chassis.
BACKGROUND ART
Firstly a disk device mounted in an automobile will be outlined.
FIG. 1
is a schematic diagram showing a disk device for use in an automobile. In
FIG. 1
,
1
is a disk device,
2
is a chassis disposed in the interior of the automobile,
3
is a playing unit for rotating the disk D and reading information recorded on the disk D,
4
is a conveying unit which conveys a disk D inserted into the inner part of the chassis from the disk insertion aperture formed in the chassis to the playing unit
3
, which then conveys a disk D which has been once conveyed to the playing unit
3
from the playing unit
3
to the disk insertion aperture and which expels the disk to the outside of the chassis
2
.
5
is a flexible member such as an oil damper which prevents the transmission of automobile vibrations to the playing unit when the disk D is being played. The flexible member is provided between the lower face of the chassis
2
and the playing unit
3
.
In the playing unit
3
,
11
is a playing unit base storing the motor which displaces the motor or pickup which rotates the turntable.
11
a
is a rotation shaft of a pressure arm and is provided in the playing unit base
11
.
12
is a turntable on which the disk D is mounted and which rotates the disk D. The turntable
12
is provided in the playing unit base
11
.
13
is a pressure arm which rotates in the direction a-b about the rotation shaft
11
a
provided in the playing unit base
11
.
14
is a disk gripping body which grips the disk D on the turntable
12
by rotating the pressure arm
13
towards the turntable side
12
. The disk gripping body
14
is mounted on the pressure arm
13
.
15
is a pickup which reads the information recorded on the disk D and which is provided on the playing unit base
11
.
In the conveying unit
4
,
21
is a disk guiding section which is fixed onto the upper plate of the chassis,
22
is a conveying roller which grips, with the guiding section, a disk D which is inserted into the interior of the chassis
2
from the disk insertion aperture. The conveying roller
22
then conveys the disk D to the playing unit
3
by rotating it in that state, grips the disk D which has been conveyed to the playing unit
3
with the disk guiding section
21
, conveys the disk D to the insertion aperture by rotating it in that state and expels the disk D outside the chassis
2
.
In
FIG. 1
, the cam plate is not shown. However it will be briefly explained as follows. The cam plate displaces the conveying roller provided on the conveying unit and the pressure arm provided on the playing unit and fixes and releases the playing unit
3
by sliding displacement in the direction of disk insertion and disk expulsion.
Next the operation of the invention will be explained.
At Time of Disk Insertion
When a disk D is inserted into the interior of the chassis
2
from the disk insertion aperture, the disk D is tightly held by the disk guiding section
21
and the conveying roller
22
. The disk D is conveyed to the playing unit by the rotations of the conveying roller
22
. The disk D which has been conveyed to playing unit
3
is tightly held by the turntable
12
and the disk gripping body
14
due to the pressure arm rotating towards the turntable side
12
and so is mounted on the turntable
12
. At this time the playing unit base
11
which had been fixed by the cam plate is released. The playing unit base
11
is supported by the flexible member
5
, the information recorded in the disk D is read and in other words the disk D is placed in a playable state.
At Time of Disk Playing
When the disk is mounted on the turntable
12
, is in a stationary position and the playing of the disk D commences, the disk D is rotated by the rotations of the turntable
12
. The information contained in the disk D is read by the pickup
15
. At this time, the vibrations of the automobile are absorbed by the flexible member
5
which prevents those vibrations from being transmitted to the playing unit
3
.
At Time of Disk Expulsion
When the playing of the disk is finished, the disk D is held by the turntable
12
and the disk gripping body
14
. When the disk D is in a stationary position and disk D expulsion commences, the pressure plate
13
rotates in the direction of separation from the turntable
12
. As a result of these rotations, the disk D is lifted from the turntable
12
and held by the disk guiding section
21
and the conveying roller
22
. The disk D is conveyed to the disk insertion aperture by the rotations of the conveying roller
22
and expelled to the outside of the chassis
2
. At this time, the playing unit base
11
is fixed by the cam plate.
The disk device for use in an automobile has been explained in a simple way up until this point. Hereafter the constituent elements of the conventional disk device for use in an automobile will be explained in detail.
FIG. 2
is a figure showing the playing unit of a conventional disk device.
FIG. 2
shows the playing unit as seen along the direction X of FIG.
1
.
FIG. 2
shows the initiation of disk insertion for a 12 cm disk. In
FIG. 2
, the 12 cm disk D is shown by the broken lines.
FIG. 3
shows a disk stopper in a conventional disk device.
FIG. 3
is a cross sectional view along the line I—I of FIG.
2
. In
FIGS. 2 and 3
,
141
is a playing unit for reading the information recorded on the disk D.
143
is a flexible member such as an oil damper which prevents the transmission of automobile vibrations to the playing unit while the disk D is being played.
144
a
-
144
c
are first to third positional determination shafts provided in the playing unit
141
.
151
is a playing unit base which stores the motor or the like which displaces the pickup or the motor which rotates the turntable.
151
d
is a rotation shaft of the pressure arm and is provided on the playing unit base
151
.
154
is a pressure arm which rotates about the rotation shaft
151
d
provided in the playing unit base
151
.
155
is a disk gripping body which tightly holds the disk D on the turntable by rotating the pressure arm
154
to the turntable side and is mounted on the pressure arm
154
.
161
is a disk stopper which is pushed by the disk D inserted in the interior of the chassis and displaces in direction B (the direction of disk insertion).
162
is a lever stopper which moves together with the displacement of the disk stopper
161
and rotates. The lever stopper
162
is provided on the upper surface of the pressure arm
154
.
163
is a slide lock which rotates together with the rotations of the lever stopper
162
, and which, when the disk D is not inserted in to the interior of the chassis, determines the position of the disk stopper
161
and which, when it rotates together with the rotations of the lever stopper
162
, slidingly displaces the operational lever, discussed below, in direction A (the direction of disk expulsion). The side lock
163
is provided on the lower surface of the pressure arm
154
.
165
is a support member for mounting the gripping body
155
on the pressure arm
154
.
166
is a first spring connected to the lever stopper
162
and the slide lock
163
.
167
is a second spring connected to the pressure arm
154
and the slide lock
163
.
In the disk stopper
161
,
161
a
is an abutting section onto which the disk inserted in the interior of the chassis abuts.
161
b
is an engaging member which engages with the guide hole formed in the pressure arm
154
.
161
c
is an engaging pin which engages in the engaging hole formed in the lever stopper
162
.
In the lever stopper
162
,
162
a
is a rotation shaft of the lever stopper
162
.
162
b
is a connecting section to which the
Asai Shigeki
Eguchi Takaharu
Fujiwara Tatsunori
Morimoto Takao
Taniguchi Kazutoshi
Chen Tianjie
Mitsubishi Denki & Kabushiki Kaisha
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