Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members
Patent
1994-01-05
1996-04-30
Rada, Rinaldi I.
Elongated-member-driving apparatus
With means to move or guide member into driving position
Including supply magazine for constantly urged members
227 8, 227134, B25C 106
Patent
active
055117155
ABSTRACT:
A power tool has a flywheel for driving a working member such as the driver of a fastener tool. A motor mounted at a rear end of a tool handle drives the flywheel mounted in a tool housing at the forward end of the handle. A cable is secured to a drum and to the working member. A clutch selectively couples the flywheel to the drum to wind up the cable and drive the working member forcefully. A return cable is wound on the driver drum against a spring bias to rewind the drum, unwind the cable and return the working member to its prior status when the clutch decouples the flywheel from the drum. When coupled to the drum, the motor speed and flywheel speed is reduced. An electronic control operates the motor to recapture the initial speed within 500 milliseconds of the speed reduction. The electronic control includes a phase-locked loop velocity control.
REFERENCES:
patent: 2291151 (1942-07-01), Dunn
patent: 3486569 (1969-12-01), Sieber
patent: 3599064 (1971-08-01), Friedman
patent: 3810572 (1974-05-01), Malkin
patent: 4030581 (1977-06-01), Giometti
patent: 4042036 (1977-08-01), Smith et al.
patent: 4121745 (1978-10-01), Smith et al.
patent: 4204622 (1980-05-01), Smith et al.
patent: 4298072 (1981-11-01), Baker et al.
patent: 4326153 (1982-04-01), Contri
patent: 4416359 (1983-11-01), Miller
patent: 4481448 (1984-11-01), Bishop
patent: 4526052 (1985-07-01), Hiraiwa
patent: 4545469 (1985-10-01), Yogome et al.
patent: 4556830 (1985-12-01), Schwalm et al.
patent: 4622500 (1986-11-01), Budelman, Jr.
patent: 4841929 (1989-06-01), Tuggle et al.
patent: 4928868 (1990-05-01), Kerrigan
patent: 4964558 (1990-10-01), Crutcher et al.
patent: 5189349 (1993-02-01), Haga
patent: 5320270 (1994-06-01), Crutcher
patent: 5363723 (1994-11-01), Hoffman
Tal, Speed Control By Phase Locked Servo Systems, IEE Transactions On Industrial Electronics And Control Instrumentation, vol. IECI 24 No. 1 Feb. 1977 pp. 118-125.
Margaris et al., Phase Locked Speed Regulation Of Universal Motors, Int. J. Electronics, 1983, vol. 55, No. 6 pp. 843-850.
Crutcher John P.
D'Amico David A.
Hunter Erick D.
Lucas Delbert E.
Litzinger Jerrold J.
Rada Rinaldi I.
Sencorp
LandOfFree
Flywheel-driven fastener driving tool and drive unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flywheel-driven fastener driving tool and drive unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flywheel-driven fastener driving tool and drive unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-623179