Clutch mechanism in power driven screwdriver
US5568849A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Feb 2, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D43/2022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power driven screwdriver including a housing, a spindle rotatably and axially movably disposed within the housing, a motor for driving the spindle, and a clutch mechanism interposed between the motor and the spindle. The clutch mechanism includes a drive clutch member rotatably driven by the motor, a driven clutch member rotatable with the spindle, and a drive clutch shifting mechanism. The drive clutch shifting mechanism is operable to move the drive clutch member from a first position to a second position spaced from the first position in a forward direction toward the driven clutch member when the driven clutch member is brought to engage the drive clutch member. The drive clutch shifting mechanism is also operable to move the drive clutch member from the second position to the first position when the driven clutch member is brought to be disengaged from the drive clutch member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.