Flap sensor and hoist position control for palletizer
US3986621A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Oct 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/119
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus is provided for sensing the position of the top of a carton situated on an upwardly moving hoist beneath the draw plate of a palletizer. The carton top has a flap thereon which, in some instances, is partially opened and which will require a given force to close it such that it does not interfere with the sensing of the position of the top of the carton. The apparatus terminates the upward movement of the hoist when the top of the carton is in the desired position and then withdraws to permit the draw plate to deposit the next tier of cartons on the hoist. The apparatus comprises a support situated below the draw plate and a movable carriage mounted on the support. An element extending from the carriage, which normally intersects the path of movement of the carton, is mounted on the carriage for limited pivotal movement with respect thereto in response to a movement of the top of the carton, between an initial pivotal position along the path prior to the desired position of the carton top and a final pivotal position corresponding to the desired position of the carton top. Means are provided for urging the element towards the initial position by exerting a force on the el…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.