Electrically-operated manual device

Elongated-member-driving apparatus – With means to move or guide member into driving position – Magnetic member-feed and/or holding means

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Details

227131, 227120, 279 1T, B25C 106

Patent

active

045110743

ABSTRACT:
An electrically-operated manual device, such as a nail driver, has an electric motor for actuating an axially-movable impact body. The motor is a vibrating armature AC motor having a single-sided movably arranged vibrating armature which, in dependence of the power supply frequency, acts with a high impact frequency on a low-mass impact body. The impact body is located in a stationary cylinder connected to a housing of the device and has a detachable adapter sleeve which receives a plunger activated via the impact body on a part to be driven. The configuration of the device makes it possible to construct a nail driver or the like with an extremely compact structure since the cylinder equipped with the impact body can be arranged immediately adjacent the vibrating armature AC motor. The power losses are negligible because the vibrating armature, swinging about an axis, acts directly on the low-mass impact body. In addition, it is possible to construct adapter sleeves for connection to the cylinder for different driving applications.

REFERENCES:
patent: 2999646 (1961-09-01), Wagner
patent: 3116879 (1964-01-01), Wagner
patent: 3203610 (1965-08-01), Farrell
patent: 3366302 (1968-01-01), Blicharski
patent: 3552627 (1971-01-01), Moreno
patent: 3979040 (1976-09-01), Denin
patent: 4160525 (1979-07-01), Wagner

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