| 摘要 |
A feed regulator clamping device for a sewing machine, operative during the feed of a work material to insure retention of a selected feed against feed back of forces from the feed dogs. The device includes a clamping plate supported by a feed shaft to extend between the feed regulator and a stationary object such as a boss of the sewing machine frame. A face cam affixed to the feed shaft, which also supports feed cams, engages with the clamping plate during the feed of the work material thereby to cant the clamping plate and create a frictional connection between the feed regulator and the sewing machine frame.
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