Variable pitch feed of fasteners
US5074452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65C7/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tag attaching gun in which an ejector rod is advanced by a trigger operated lever to sever an individual fastener from a fastener assemblage and dispense the severed fastener through a hollow slotted needle. This apparatus incorporates a unitary, single-tooth feed member for advancing the fastener assemblage to bring the forwardmost fastener in line with the needle. Such feed member comprises a reciprocably mounted body integral with a U-shaped resilient finger terminating in a feed tooth. The feed member together with its resilient feed finger moves linearly in order to engage and advance the fastener assemblage, while the finger flexes during a return motion in order to clear a succeeding fastener in the assemblage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.