Variable speed drive mechanism with dwell
US5449268A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Apr 4, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20323
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A variable speed drive mechanism for transferring a workpiece in an accelerated and decelerated motion comprising a pair of spaced carrier arms driven by a main shaft that rotates through a fixed stationary gear. A set of pulleys is mounted between the carrier arms and a flexible drive member drivingly connects the stationary gear and the pulleys. One of the set of pulleys drives a pair of bellcranks each of which is operatively connected to a transfer arm through a roller and cam slot arrangement. The connection between the bellcrank and the transfer arm provides a more desirable acceleration and deceleration movement of the transfer arms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.