Stacker with a yoke-type stripping device
US4802570A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Sep 14, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G47/082
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A yoke-type stripper for an article stacker in which a series of paddles extending horizontally from vertically moving conveyor chains each carries an article that becomes a member of the stack. The stripper has rear and front rows of laterally spaced apart vertical bars. Carrier bars extending horizontally from vertical bars in the rear row constitute the bottom of the yoke. The paddles have fingers which support the articles and which pass downwardly between the bars to let the bottom article in the stack rest on the top edges of the carrier bars. A shuttle table is located adjacent the yoke and the table has slots into which the yoke bars can shift. The carrier bars are at a higher level than the table top when the stack is accumulating. Fluid work cylinders shift the yoke and the stack therein to the table slots while the carrier bars are kept at said higher level clear of the table so the pads are not dragged. One cylinder is actuated to lower the yoke in the table slots sufficiently for the top edges of the carrier bars to become flush with the table top. The yoke is then caused to dwell while the stack is pushed out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.