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(29) locus cut of the top feed dog
Locus cut mechanism makes longer the section where the feed
dog actually feeds cloth by leveling the lower side of the locus of
top feed dog motion.
By this mechanism, the effect of prevention of irregular stitches
can be obtained when sewing materials thicker than medium
weight ones such as knitted fabrics or the like although the e
is less for light-weight materials . .
The locus cut mechanism does not work in the state of delivery.
v��
locus of feed dog
(
Cloth
/
/
"- ·,
Range of
effective feed
Set the standard of cut amount to approximately 0.5 mm.
(30) Adjusting the longitudinal position of the top feed dog
r ('.] •. '--
:it� ��
J)(
4t
L
��~.::;L��11
,. "�'h�;"
'(f;
t . . . .
--··r-
Clearance between top feed dog f.) and the groove of presser@, when
top feed strokeO is maximum, is as shown in the list below.
Clearance between top feed dog @ and groove of presser 8 when top
feed dog 8 travels to the front end = dimr,nsion A
Model name
MO
-6916R-.f/\6 -50H
F,\6
60H
MO
-0943R -10 6 -307
All models of MO-0900R, and J
excluding aforementloned modets
standard Adjustment
0
lj
(Unit: mm)
dimension A
0.8
1.0
0.5
.. .. 4 8
f
fect
Range of
effective feed
Thrust collar
0
Top feed arm C
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