Automated screw driving device
US5890405A · kind A · utility
Inventor
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/147
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fully automated hand held screw driving device comprises an automatic feeding mechanism of screws to the screwdriver from an integral storage magazine, an automatic speed control mechanism for controlling the rotary speed of the screwdriver, an automatic force control mechanism for controlling the seating force of the screwdriver bit on the screw, an adjustable depth control mechanism for controlling the final screw depth in the work surface, and an adjustable seating torque control mechanism for controlling the final screw head seating torque. The screws are spirally wound on a replaceable bobbin removably mounted in the magazine. The device can accommodate a full range of practical screw sizes and can be fitted with exchangeable bits for use with screws having standard recessed star or square heads and various bolt heads. A central microprocessor is used to control all operating functions of the screw driving device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.