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Head Slider Drive Mechanism
"1. Forward play
Fig. 4 illustrates the head slider mechanism
immediately
after
half-mounting
of the
cassette.
At this time,
the
combination
head
B. (4) faces in the forward
direction.
» The boss (a) on the cam lock ass'y lever (56) comes to the
wall
(a) of the cam
gear ass'y (48) and stops there, as
seen in Fig. 5. The notch (near (k)) in the cam gear ass'y
Fiywheel ass'y (R.H.) (9A)
ae
*\ Cam gear ass'y (48)
oe
Cam lock ass'y lever (56)
Coiled spring for
pulling cam tock (53)
Fig. 4
2)
At the same time, voltage shown in Fig. 7 is applied
to the solenoid (L2). The iron core of the solenoid
(L2) is attracted and the cam lock ass'y lever (56)
rotates clockwise, as shown in Fig. 6.
3)
The
boss of the cam
jock ass'y lever (56) kicks
the portion (b) of the outer wall to rotate the cam
gear ass'y (48) a little in the direction of the arrow,
as shown in Fig. 7.
4
Reverse
Jever (57)
rom STOP — start of PLAY
is positioned at the gears for the flywheel ass'y (R.H.} (9A).
In this condition, the gears are not engaged.
1)
If the forward
play button
is pressed, electricity
is supplied to the main motor ass'y (1A), and the
R.H. and
L.H. flywheel assemblies (9A) and (9B)
start rotating.
Boss (g)
Cam gear ass'y (48)
®
Flywheel ass'y (R.H.)
gears (9A)
8 @
Coiled spring for
=
pulling reverse lever (50)
tion (kK) of the gear meshes with the R.H. flywheel
ass''y gear
(9A). As a result, the cam
gear ass'y
(48) is rotated by the R.H. flywheel ass'y (9A).
BE
°
i
3 elp-----
a
2
3
@2
Ht
i
2
t
a
ae
T (time)
(
o
I
S
Stop Attract
Hold
=
—,
$
(t1)
Locus of (a) in re-
verse play mode
Locus of (a) in for-
ward play mode
Fig. 7
When the solenoid (L2) is turned on, the cam gear
ass'y (48) is rotated a little.
Sed
Se ee
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