Multi-mode ratchet indexer

Details Multi-mode ratchet indexer Multi-mode ratchet indexer

1977-07-22

1979-08-28

Scott, Samuel

Machine element or mechanism

Mechanical movements

Oscillation or reciprocation to intermittent unidirectional...

74143, F16H 2702

Patent

active

041656563

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.

REFERENCES:
patent: 1126084 (1915-01-01), Beisbach
patent: 3138030 (1964-06-01), Godel
patent: 3408879 (1968-11-01), Modder et al.
patent: 3475981 (1969-11-01), Gerard
patent: 3802282 (1974-04-01), Cook

Affiliated with

Also associated with

Rating

Multi-mode ratchet indexer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-mode ratchet indexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-mode ratchet indexer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-763788