Multiple impact fastener driving tool
US4625903A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1984 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Jul 3, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool for driving fasteners by means of multiple impact blows. The tool comprises a body with a handle portion and a magazine portion, shiftable in directions parallel to said blows between an extended position substantially outside the body and a retracted position substantially within the body. A prime mover provides a rotating shaft. The rotating shaft is operatively connected to a mechanism for translating rotary motion into reciprocating motion. The translating mechanism comprises a flywheel, an impact member having at least one impacting surface thereon and being attached to or constituting an integral, one-piece part of the flywheel, a free floating energy transfer member separate from but engageable with the impact member, a resilient bumper to arrest the energy transfer member at the termination of its drive cycle, and a fastener driver engageable by or comprising an integral, one-piece part of the energy transfer member. A resilient member normally biases the energy transfer member out of contact with the impact member. When the tool is abutted against a workpiece and pressure is applied by the tool operator, the at least one impacting surface of the impact member transm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.