Spring loaded drive gun
US6622596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Oct 26, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D5/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drive tool which does not require any upper-body force from an operator to install a fastener. The drive tool includes a top portion which is engageable with a drive source and a lower portion which is engageable with a fastener. The drive tool includes springs which are configured to urge the lower portion and upper portion of the tool away from each other (i.e. relative movement) and provide that a generally axial force is applied to the fastener engaged with the lower portion of the tool. As a result, the operator does not need to apply any upper-body axial force to the drive tool to install the fastener. Preferably, the lower portion of the drive tool includes one or more foot pads on which an operator may stand, and the spring(s) become compressed when the operator stands on the foot pad(s). As a result of the spring(s) trying to expand, a generally axial force is applied to the fastener engaged with the lower portion of the tool, thereby reducing the amount of upper-body axial force an operator must apply to the drive tool to install the fastener. Hence, the operator can use his or her own body weight to apply an axial load during a drilling operation, and need not use any …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.