公开(公告)号：US4774603A

公开(公告)日：1988-09-27

申请号：US913156

申请日：1986-09-26

申请人： John W. Dong ,  Leslie G. Christie, Jr. ,  Ronald L. Abramson

发明人： John W. Dong ,  Leslie G. Christie, Jr. ,  Ronald L. Abramson

IPC分类号： G11B15/26 ,  G11B15/43 ,  G11B15/54 ,  G11B15/56 ,  G11B15/60 ,  G11B15/46

CPC分类号： G11B15/54 ,  G11B15/43 ,  G11B15/56 ,  G11B15/60

摘要： An integral tape path assembly (110) includes a head subassembly (112), a buffer/guide subassembly (114) and a spaced sensor/guide subassembly (116), all mounted to a common tape path plate (118). The buffer/guide subassembly includes a buffer arm (126) which pivots about an axis shared by a fixed guide (128). A Hall-effect position sensor (186) can be mechanically calibrated via an aperture (142) in a housing (132). The speed sensor/guide subassembly includes a roller (148) which serves to guide the tape on the take-up side of the tape drive system and to drive a shaft (152) holding a speed indicator (156) for a speed sensor (158). The speed sensor/guide subassembly includes a fixed-orientation washer (206) for urging the tape against an upper flange (208) of the roller. The washer is off-center sprung to counter distorting forces engendered by the tape as it engages the roller. Accordingly, a compact tape path assembly is provided requiring a reduced number of precision alignments and minimizing sources of tape distortion.

摘要翻译： 整体的磁带路径组件（110）包括头部子组件（112），缓冲/引导子组件（114）和间隔开的传感器/引导子组件（116），所有传感器/引导子组件全部安装到公共磁带路径板（118）。 缓冲/引导子组件包括围绕由固定引导件（128）共享的轴线枢转的缓冲臂（126）。 霍尔效应位置传感器（186）可以通过壳体（132）中的孔（142）进行机械校准。 速度传感器/引导子组件包括一个辊子148，用于引导带驱动系统的卷取侧上的带子，并驱动一个保持速度传感器（158）的速度指示器（156）的轴（152） ）。 速度传感器/引导子组件包括用于将带子推向辊的上凸缘（208）的固定取向垫圈（206）。 垫圈是偏心弹簧，以防止由于带子啮合辊而产生的变形力。 因此，提供了一种紧凑的带路径组件，其需要减少数量的精确对准并且使带失真的来源最小化。

公开(公告)号：US4777548A

公开(公告)日：1988-10-11

申请号：US939378

申请日：1986-12-08

申请人： James Dow ,  John W. Dong ,  David Lundgren

发明人： James Dow ,  John W. Dong ,  David Lundgren

IPC分类号： G11B33/12 ,  G11B15/67 ,  G11B25/06 ,  G11B33/02 ,  G11B33/14 ,  G11B15/00

CPC分类号： G11B33/142 ,  G11B15/67 ,  G11B25/06 ,  G11B33/027 ,  G11B33/1486

摘要： An access door is described for a housing for tape drive apparatus of the type including a take-up reel, a hub for a supply reel, and a fan for moving air within the housing. The access door is hinged to the housing and is pivotable between open and closed positions. The access door includes an interior face which forms a ramp for guiding the supply reel into the housing and onto the hub. The door also includes an inlet port for receiving air from the fan, at least one exit port, and a passageway for communicating air between the inlet port and the exit port. Air leaving the exit port in the door is directed around the periphery of the supply reel.