公开(公告)号：US3756714A

公开(公告)日：1973-09-04

申请号：US3756714D

申请日：1971-05-14

Applicant: TECHNICOLOR

Inventor： CARAWAY G

IPC: G03B21/32 ,  G11B15/10 ,  G11B15/16 ,  G11B15/29 ,  G03B31/02

CPC classification number: G03B21/323 ,  G11B15/10 ,  G11B15/16 ,  G11B15/29

Abstract: There is disclosed herein a capstan and pinch roller assembly for use in moving material in strip form, such as for moving motion picture film in a cartridge-loaded motion picture projector. The pinch roller is pivotally mounted and normally remains in a rest position for allowing entry of a film cartridge or the like into the machine. Insertion of the cartridge into the machine engages a member of the pinch roller assembly to move the roller into a second position, from which it is then moved to a final, capstan-engaging, position by means of an electromagnet. The electromagnet thus serves to finally position the roller, and to properly bias the pinch roller against the capstan. A suitable sound pick-up, such as an optical or magnetic pick-up, also may be positioned by movement of the pinch roller assembly. This invention relates to apparatus for moving webs of strips of material and more particularly to an improved pivotally mounted pinch roller assembly for use with cartridge loaded motion picture projectors and the like.

Abstract translation: 这里公开了一种用于以带状形式移动材料的主导轴和夹送辊组件，例如用于在带盒式电影投影仪中移动运动图像胶片。 夹送辊枢转地安装，并且通常保持在静止位置，以允许将暗盒等进入机器。 将盒插入机器中与夹送辊组件的构件接合以将辊移动到第二位置，然后通过电磁体将其移动到最终的主导轴接合位置。 因此，电磁体用于最终定位辊子，并且将压紧辊适当地偏压抵靠绞盘。 可以通过夹送辊组件的移动来定位合适的拾音器，例如光学拾取器或磁性拾取器。