| 摘要 |
In a cam controlled, needle jogging ornamental stitch sewing machine, a cam removal mechanism is provided for elevating a seated pattern cam from the interior portion of the sewing machine, to an accessible position. A trifurcated, resilient, bowed retaining means is slidable within an axial bore in a central hub and operatively connected to a spring biased plunger. When the pattern cam is in the seated position, the retaining means overlies the pattern cam. When the plunger is depressed, the retaining means is pushed below the seated cam until it underlies the cam, whereupon the spring biased plunger is released and the retaining means raises upwardly carrying the cam with it.
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