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independently of the tray.
3. Sliding of tray rack
Separately
from
the motion
of the tray. the tray
rack
slides
independently
in a certain
range
to
move the disc and clamper vertically.
At the same time as the tray comes
into the close
position
during
closing,
the latch is led into the
groove of the latch guide, and turned in the ®
direction,
thus
allowing
the tray rack to slide in
the © _ direction.
During the tray opening, on the contrary, first only
the tray rack moved
by approx.
30 mm,
and the
tip of the tray rack touches the inside of the tray
to open the tray.
At this time, the latch put in the
groove
of the guide
moves
in the
@
direction
so that the tray rack and tray move together.
4. Vertical operation of disc
To moved a disc up and down the lifter cam built
in the tray is rotated by the sliding of the tray rack,
and this rotation is connerted
into vertical motion
of the disc holder.
(1) Moving down
The tray rack moves
together with the tray, until
the tray is closed after a disc is set onto the turn-
table.
When the latch is led into the groove of
(Player main unit)
(Haupteinheit des Plattenspielers)
(Unité principale d'électrophone)
Tray
Cramp
Einschub
Klammer
Chassis
Blocage
\
Latch
Schnapper
Tray Rack
Verrou
Einschubzahnstange
Baie 4 chassis
Gleichstrommotor
Moteur c.c.
L
132 mm_
a
(Tray travel distance)
(Bewegungsentfernung
DC Motor
des Einschubs)
(Distance de parcours
du chassis)
(Tray loading operation)
(Einschubladebetrieb)
(Opération de charge du chassis)
Fig. 32
Abb. 32
Latch
Schnapper
Verrou
Tray Rack
Einschubzahnstange
Baie a chassis
-41-
HITACHI
DA-600
Moving up
(2)
5. Clamping operation
Clamping
a disc onto the turntable is effected by
utilizing the horizontal
operation
of the tray rack
at the same time as the disc is moved down.
The tray rack has a slope @
in contact with the
boss of the clamp cam, which rotates in the
direction.
This clamp cam
is connected
with the
C arm, which clamps the disc, by the spring.
(1) Clamping
When
the tray rack moves
backward,
the clamp
cam is rotated in the ®
direction by the slope
® . and thereby the C spring is extended.
By
this force, the disc is clamped
to the turntable.
Unclamping
When
the tray rack moves
forward
on the con-
trary, the boss of the clamp cam is rotated along
the slope @ by the force of the C spring.
This
turns
the
C
arm
upward
and
unclamping
is
achieved.
o
(Disc vertical motion Clamping motion)
(Vertikale Bewegung
der Platte Klemmbewegung)
(Mouvement vertical du disque Mouvement de blocage)
Tray
;
Einschub
Disc
Chassis
Platte
Disque
Tray Rack
Einschubzahnstange
Baie 4 chassis
Roading
Plate
Gear
Ladeplatte
Zahnrad
Plaque de chrage
Engrenage
Fig. 34
Abb. 34
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