Articulated arm transfer device
US5180276A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1991 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Apr 18, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20594
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An articulated arm transfer device employs a rhomboidal link structure defined by two separated pairs of forearms pivotally joined at the elbows and at the wrists. Each wrist supports a holding structure and the elbows are driven in mirror-image semicircular paths by a pair of upper arms which are superimmposed alternately under each pair of forearms as the upper arms are rotated about mutually adjacent shoulder joints. The motion is such that at any time one holding structure is moving rapidly between an extended position and a park position while the other holidng structure is slowly traveling a negligible distance between a park position and a retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.