Screw driving tool
US6739225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Dec 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/141
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A screw driving tool comprises a housing (1), a drive (2), a drive spindle (3), a torque coupling (4) between the drive (2) and the drive spindle (3), as well as an adjustment mechanism disposed between the free end of the drive spindle (3) and the torque coupling (4), the adjustment mechanism is used for adjusting the torque transmitted using the torque coupling (4). The adjustment mechanism has at least one prestressable spring element (5) cooperating with the torque coupling; a compression sleeve (6) that is displaceable parallel to the axis of the drive spindle (3) and cooperating with the spring element (5); a control sleeve (7) arranged coaxially with the compression sleeve (6) and cooperating with the compression sleeve (6); a rotatable adjustment sleeve (8), and a plurality of rotationally mounted planet wheels (10) cooperating in a form locked manner with the control sleeve (7) and inner teeth (9) of the adjustment sleeve (8). The housing (1) extends between the control sleeve (7) and the adjustment sleeve (8) and the planet wheels (10) are rotationally mounted in passage openings in the housing (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.