公开(公告)号：US3536951A

公开(公告)日：1970-10-27

申请号：US3536951D

申请日：1967-11-03

Applicant: JOHN DE SOLA MOSELY

Inventor： MOSELY JOHN DE SOLA

IPC: H01J33/00 ,  H01J29/72

CPC classification number: H01J33/00

公开(公告)号：US5517262A

公开(公告)日：1996-05-14

申请号：US406452

申请日：1995-03-20

Applicant: John de Sola Mosely

Inventor： John de Sola Mosely

IPC: G03B1/24 ,  G03B41/00

CPC classification number: G03B1/24

Abstract: A changeable sprocket wheel assembly enables the rapid and reliable mounting and demounting of sprocket wheels of different diameters on a film drive shaft by unskilled operators, while assuring that the sprockets are held with high precision. In one arrangement, an inboard sprocket wheel member (50, FIG. 2) receives the inboard portion (55) of a driven shaft in a close sliding fit and is lockable to the shaft, the inboard member having a small diameter land (52) with a ring of sprockets (54) thereon. An outboard sprocket wheel member (60) has the same size land with sprockets thereon, and fits around the outboard shaft portion (65) in a close sliding fit and is detachably fixable to the inboard member to abut it and rotate with it. When a larger diameter sprocket wheel is required, the outboard member (60) is removed and a large sprocket wheel element (70, FIG. 3) is mounted in its place, the large element having two large lands (72, 74) that each have a ring of sprockets (76, 78) thereon, with the large element lying in close sliding fit with the outer shaft portion and being detachably fixable to the inboard member. In another assembly (160, FIG. 10), an inner member (162) receives the drive shaft in a close sliding fit and is rotatably fixed to it, while sprocket wheel members (180, 196) of different sizes each have cylindrical inner surfaces that are closely slidable on the inner member and are mounted to abut it and rotate with it. Detachable fixing of two members is accomplished by a projecting pin portion (100, FIG. 9) that is retained by a spring ring (102).

Abstract translation: 可更换的链轮组件能够通过不熟练的操作者在薄膜驱动轴上快速可靠地安装和拆卸不同直径的链轮，同时确保链轮保持高精度。 在一种布置中，内侧链轮轮构件（图2中的50）以紧密滑动配合接收从动轴的内侧部分（55）并且可锁定到轴上，内侧构件具有小直径的平台（52） 其上具有链轮（54）的环。 舷外链轮轮构件（60）具有与其上的链轮相同的尺寸的平台，并且以紧密的滑动配合装配在外侧轴部分（65）周围，并且可拆卸地固定到内侧构件上以抵靠它并与其一起旋转。 当需要更大直径的链轮时，外部构件（60）被移除，并且大的链轮元件（70，图3）安装在其位置，大元件具有两个大的平台（72,74），每个 在其上具有链轮（76,78）的环，其中大元件与外轴部分紧密地滑动配合并且可拆卸地固定到内侧构件。 在另一组件（160，图10）中，内部构件（162）以紧密的滑动配合接收驱动轴并可旋转地固定在其上，而不同尺寸的链轮构件（180,196）具有圆柱形内表面 其在内部构件上可紧密地滑动并且被安装成抵靠它并与其一起旋转。 通过由弹簧环（102）保持的突出销部分（100，图9）来实现两个构件的可拆卸固定。