| 摘要 |
In a yarn winding mechanism wherein a length of yarn is wound onto a rotating bobbin, a yarn guide comprising a body supported for movement back and forth along a reciprocal path. A cam follower is affixed to a shaft which is rotatably supported by a metal sleeve positioned in an opening in the body, and the cam follower is adapted to move in a cam comprising a cylinder having a groove which is configured to permit the body to move along the reciprocal path. A yarn guide member is attached to the body for constraining the yarn to properly guide the yarn onto the bobbin. The body, cam follower, and shaft are made of a molded plastic of sufficiently high impact strength to withstand the forces applied to the guide to prevent deformation and breaking thereof and of a sufficiently low coefficient of friction to permit the body to move along the reciprocal path at the required operating speeds. The cam follower and shaft have a reinforcing member embedded therein which provides sufficient flexural rigidity to substantially prevent bending deforming, and breaking of the cam follower and shaft.
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