Work Clamp Mechanism - Brother RH-981A Service Manual

1. MECHANICAL DESCRIPTIONS

1-7. Work clamp mechanism

1. Cylinder 16 X 10 (1) moves clamp lever B (6) in the direction of the arrow according to the cylinder's motion, via
the presser cylinder rod (2), the cylinder rod pin (3), the presser driving lever (4), and the clamp lever shaft (5).
2. The end of clamp lever B (6) is fitted on clamp lever L (7), and the work clamp (9) attached to clamp arm L (8)
lowers.
3. When the cylinder (1) is returned by the presser spring (10), the work clamp (9) rises. The speed controller (11)
attached to the cylinder (1) controls the rising speed of the work clamp (9).
* The work clamp mechanism is activated by independently-operated left and right cylinders, that can equalize the
pressure of the work clamp.
The pressure of the work clamp is always applied to the material equally even when the material thickness
changes.
5
RH-981A
3686Q