Sheet material pin feed tractor mechanism
US3930601A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1974 |
| Grant date | Jan 6, 1976 |
| Priority date | — |
| Expiry date | Nov 22, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A drive for advancing paper or other sheet material through a printing station, or the like, including: a toothed, flexible belt carrying spaced pins for engaging the sheet material, the belt having a respective drive sprocket engaging tooth for each pin; a drive sprocket with which the belt teeth are engaged and including grooves for receiving and engaging the belt teeth; a stationsry idler guide cooperating with the drive sprocket for tensioning and guiding the belt. The support frames for the pins on the belt are designed to prevent the pins from twisting during paper and feed operations. A linear guide serves to maintain the pins in alignment; a mounting means clamps the drive sprocket to a drive shaft without play therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.