| 摘要 |
<p>#CMT# #/CMT# The machine has a bobbin case opener (33) with a pushbutton (37) that is loaded using a spring. The opener has a presser bar lifting lever (32) that is attached to an opener-dog (31). A bobbin case (21) is rotatably mounted on a looper (12). A control cam (39) is rotatably driven at an axis (13) by rotation speed of the looper. The pushbutton lies on the control cam. The control cam directly and severely reduces speed of a retaining bar (22) rotating in rotational direction (40) at a dog (23). #CMT#USE : #/CMT# Sewing machine e.g. double locked stitch sewing machine and post bed sewing machine. #CMT#ADVANTAGE : #/CMT# The control cam directly and severely reduces the speed of the retaining bar rotating in the rotational direction at the dog, thus reducing the noise emitted from the machine. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective top view of a looper with a bobbin case and a needle hole plate at a position. 12 : Looper 13 : Axis 21 : Bobbin case 22 : Retaining bar 23 : Dog 31 : Opener-dog 32 : Presser bar lifting lever 33 : Bobbin case opener 37 : Pushbutton 39 : Control cam 40 : Rotational direction.</p> |
