Shapes Of Buttons; Specifications For 4-Holed And 2-Holed Buttons; Specifications For Shank Button And Marble Button - JUKI AMB-289/IP-420 Instruction Manual

(2) Shapes of buttons

1) Specifications for 4-holed and 2-holed buttons

A
B
D
A : Buttonhole diameter
B : Distance between buttonholes 1.5 to 6.0 mm (in increments of 0.1 mm)
C : Location of buttonholes
D : Outside diameter
E : Button with a round edge
1
E : Button with a V-shaped edge
2
E : Button with an angular edge
3
F : Bulge
G : Area around buttonholes
H : Thickness of button

2) Specifications for shank button and marble button

F
A
F
A
When the button loader is used, there are cases where the buttons cannot be used due to the
shape. So, be careful.
B
E
1
C
D
Needle used : ø 1.5 mm or more when using #12 to #16
Needle used : ø 2 mm or more when using #16 to #18
All holes must be located equidistant from the center of each button.
Min. outside diameter : ø 8 mm
Max. outside diameter : ø 32 mm
Line height : within ± 0.25 mm
R (roundness) of button edge must be a 3 mm radius or less.
Within 120˚ angle
The thickness must be 5 mm or less.
5 mm or less
Must be smooth
8 mm or less
E
B
C
D
C
E
B
G
Ⅰ–2
E
2
G
G
G
F F
H
H
A : Buttonhole diameter
B : Thickness of button
C : Distance from the bottom
of the button head to the
center of the buttonhole
D : Length of shank
E : H e i g h t o f t h e s t r a i g h t
section on the side face of
button
F : Outside diameter
G : Distance from the center of
the hole to the button edge
E
E
3 3
G
F
H
ø 1.5 mm or more
6.8 mm or less
Shank button :
1 mm to 6 mm
Marble button :
1.5 mm or more
8 mm or less
3.5 mm or less
Min. outside diameter:
ø 8 mm
Max. outside diameter:
ø 32 mm
2 mm or less