Brother PS-300B オーナーマニュアル
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1
BAS-311E.311EL.326E.326EL
Chapter 1. Mechanical description
Chapter 1. Mechanical description
1. Needle bar, thread take-up, lower shaft and shuttle hook
mechanism
1. When the machine pulley
q rotates in the direction of the arrow, the upper shaft w rotates, then it rotates the thread
take-up crank
e.
2. The needle bar crank
r, attached to the thread take-up crank e, moves the thread take-up lever t.
3. The needle bar
u attached to the needle bar clamp y is moved up and down.
4. When the machine pulley
q rotates in the direction of the arrow, the crank rod i attached to the upper shaft w moves
up and down.
5. The crank rod
i oscillates the attached rock gear o.
6. The rock gear
o oscillates the lower shaft !1 through the lower shaft gear !0. The lower shaft !1 oscillates the attached
driver
!2 and inner rotary hook !3 in the shuttle hook mechanism.
w
u
o
q
e
y
t
i
r
!0
!1
!2
!3