Paper feeder
US10507994B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Oct 18, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2515/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A paper feeder for transporting paper sheets, includes: a head fan that blows air on the paper sheets; a suction fan that applies negative pressure to the paper sheets blown by the head fan; a switching member that changes the direction of the air from the head fan; a head shutter that blocks the flow of the air directed by the switching member; and a hardware processor that determines the blocking time of the airflow, wherein the switching member changes the air direction between a first direction for floating the paper sheets and a second direction toward the suction fan, and the hardware processor determines stop timing of the air blow in the second direction directed by the switching member as the start timing of clocking the blocking time of the airflow, based on the weight and the resistance to an external force of the paper sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.