Retractable toe guard

摘要

A pitless elevator system removes a car buffer and machine, and other components where so equipped from under the elevator car such that the elevator car can be operated to a clearance between it and a floor of a hoistway of about three inches. The machine may be mounted on board the car or may be located elsewhere and the car buffer located in normal side clearance space. The system further provides a retractable toe guard to allow the car to bottom at the indicated distance from the floor. The system facilitates retrofit applications of elevators without the prior art drawback of digging a pit.

主权项

1. A retractable toe guard for an elevator car, said elevator car movable within a hoistway between a plurality of landings, said toe guard comprising:
a sheet material extendable below said elevator car such that, in a deployed position, said material blocks access to said hoistway in the event said elevator car is misleveled at one of said landings; a hinged connection along one edge of said material, said hinged connection being connectable to said elevator car to allow said toe guard to move between said deployed position and a retracted position; a spring hinge operable to automatically return said toe guard from said retracted position to said deployed position; an arm to move said toe guard into one of said deployed and retracted position; and a roller mounted to the sheet material.