D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
112/6
D05B 69/22 (2006.01) D05B 69/36 (2006.01)
Patent
CA 1048862
ABSTRACT OF THE DISCLOSURE A device for intermittently driving a sewing machine and for stopping the same at a predetermined angular position after one complete rotation thereof each time when the foot con- troller of the sewing machine is operated. Known similar sewing machines are intermittently driven in one complete rotation each time when the machine controller is pressed. These sewing machines are, however, forcibly stopped in such a manner that the driving power of the machine motor is wholly applied to the device for stopping the machine at a predetermined angular position. These sewing machines, therefore, produce loud sounds or noises each time the sewing machine stops, resulting in ex- cessive wear of machine parts and overloading of the machine motor. The present invention overcomes these drawbacks by pro- viding a compact sewing maching which can be intermittently driven, and can be started and stopped at a predetermined angular position after one complete rotation thereof each time the foot controller is operated. The sewing machine comprises a machine housing, an upper shaft rotatably journalled in the machine housing, a belt wheel mounted on the upper shaft and rotatable relative to the upper shaft, clutch means provided between the upper shaft and the belt wheel and operable to connect and dis- connect the belt wheel to and from the upper shaft, actuating means for actuating the clutch means to operate the same to a first position for connecting the belt wheel to the upper shaft and to a second position for disconnecting the belt wheel from the upper shaft, stopper means for engaging and stopping the ac- tuating means, releasing cam means actuated to release the ac- tuating means from the stopper means and pawl means for actuating the releasing cam means to release the actuating means from the stopper means.
249112
LandOfFree
Intermittent driving device for sewing machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intermittent driving device for sewing machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermittent driving device for sewing machines will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-971331