PERSON LIFTING DEVICES WITH ACCESSORY DETECTION FEATURES AND METHODS FOR OPERATING THE SAME

摘要

In the embodiments described herein, the person lifting device automatically determines if an accessory, such as a sling, is properly connected to a sling bar of the person lifting device and, if the accessory is not properly connected, the person lifting device provides a user with a visual and/or audible warning and, in some embodiments, may lock-out the actuation controls of the person lifting device to prevent the person lifting device from being used.

主权项

1. A method for operating a person lifting device, the method comprising:
detecting, with a first coupling detector, an identification of a first accessory coupling attached to a first lifting hook of a sling bar of the person lifting device; determining, automatically with an electronic control unit communicatively coupled to the first coupling detector, a type of the first accessory coupling based on the identification of the first accessory coupling; detecting, with the first coupling detector, an identification of a second accessory coupling attached to the first lifting hook of the sling bar of the person lifting device; determining, automatically with the electronic control unit communicatively coupled to the first coupling detector, a type of the second accessory coupling based on the identification of the second accessory coupling; comparing, with the electronic control unit communicatively coupled to the first coupling detector, the type of the first accessory coupling and the type of the second accessory coupling; and communicating, automatically with the electronic control unit, a warning signal when the type of the first accessory coupling and the type of the second accessory coupling are different.