公开(公告)号：US4165656A

公开(公告)日：1979-08-28

申请号：US818240

申请日：1977-07-22

Applicant: Edward T. Rude

Inventor： Edward T. Rude

IPC: B23Q16/06 ,  F16H27/02

CPC classification number: B23Q16/06 ,  Y10T74/1531 ,  Y10T74/1556

Abstract: A multi-mode indexer having a gear wheel rotatably mounted on a base; a drive bracket assembly is rotatably mounted coaxially with the wheel shaft for reciprocal movement relative to the shaft. A first pair of oppositely disposed pawls are mounted to the drive brackets to engage and drive the gear wheel during the drive stroke. (One pawl driving while the other prevents overtravel). A second pair of oppositely disposed pawls are mounted to the base to provide a positive stop action against further rotation of the gear wheel at the end of each drive cycle and to lock the gear wheel in position during recovery of the drive bracket so that the gear wheel is at all times either locked in a stationary position or positively locked to the motion of the drive bracket. Cam members are rotatably mounted on the gear wheel shaft to control the action of selected pawls and thus control the CW or CCW indexing of the gear wheel as a function of the position of each cam member.

Abstract translation: 一种具有可旋转地安装在基座上的齿轮的多模式分度器; 驱动支架组件可转动地与轮轴同轴地安装，用于相对于轴往复移动。 第一对相对设置的棘爪安装到驱动支架上以在驱动行程期间接合和驱动齿轮。 （一个爪驱动，另一个阻止超程）。 第二对相对设置的棘爪安装到基座以提供阻止在每个驱动循环结束时齿轮进一步旋转的正停止动作，并且在回收驱动支架期间将齿轮锁定在适当位置，使得齿轮 轮在任何时候都被锁定在静止位置或者可靠地锁定在驱动器支架的运动上。 凸轮构件可旋转地安装在齿轮轴上以控制所选爪的动作，并且因此根据每个凸轮构件的位置来控制齿轮的CW或CCW分度。