WORM-GEAR ASSEMBLY HAVING A PIN RACEWAY

摘要

23 WORM-GEAR ASSEMBIY HAVING A PIN RACEWAY ABSTRACT A WORM-GEAR ASSEMBLY INCLUDING A WORM SCREW (280) HAVING AT LEAST ONE GROOVE (280A) AND A WHEEL (275) HAVING A PLURALITY OF ROTATABLE PINS (75A) ALONG ITS PERIPHERY FOR ENGAGING THE WORM SCREW. THE PINS ARE ABLE TO ROTATE IN A DIRECTION OTHER THAN A DIRECTION OF WHEEL ROTATION. AT LEAST ONE RACEWAY (265) IS PROVIDED FOR CONTACTING PINS THAT ARE NOT ENGAGED WITH THE WORM SCREW DURING OPERATION OF THE ASSEMBLY. FIG 12F