Device for detecting whether or not one end of a belt-shaped sheet is locked
US4540324A · kind A · utility
3Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Feb 17, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for detecting whether or not one end of a belt-shaped sheet is locked having a depressing bar for depressing one end of a belt-shaped sheet perpendicular to the surface of an end thereof when the end is at a locking position where to be locked by an end locking member. A detector is operated when the depressing bar is moved a predetermined distance to produce a signal representative of whether the end of the belt-shaped sheet is satisfactorily locked. The depressing bar is operated in response to a signal representing when the end of the belt-shaped sheet comes to the locking position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.