Operator presence sensor for operator's seat
US5481078A · kind A · utility
56Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Feb 18, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2210/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An operator presence sensor for an operator's seat on equipment, such as skid steer loaders and the like, provides a signal to indicate when the seat is occupied. The operator presence is sensed by permitting seat rails to pivot about their forward end against leaf springs designed to support the seat weight plus a known fraction of an operator's weight so that the rear of the seat is raised when the seat is unoccupied and when an operator occupies the seat the springs deflect and the rear of the seat moves down, resting on a seat support pan. An electronic sensor detects seat position to provide a position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.