抄録
We picked out the machine operation in the cooperative sewing of pyjamas and investigated its rationality.
1. As for the machine sewing operations observed, there was difference in time required by individual operators for completion of a process.
2. The slowest operator took about two and a half times as long as the fastest one.
3. Quick and beautiful sewing can be achieved when the hours on machine controlled work and manually controlled work are arranged to permit the rational and steady cycle of the work.
