Invention Grant
- Patent Title: Retractable toe guard
- Patent Title (中): 可伸缩的脚趾保护
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Application No.: US09594880Application Date: 2000-06-15
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Publication No.: US08807288B1Publication Date: 2014-08-19
- Inventor: James A. Rivera , Bruce St. Pierre , Frank M. Sansevero
- Applicant: James A. Rivera , Bruce St. Pierre , Frank M. Sansevero
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Main IPC: B66B13/28
- IPC: B66B13/28 ; B66B11/02

Abstract:
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.
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