Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent
1992-10-16
1993-04-06
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
192 44, B25B 1346
Patent
active
051993295
ABSTRACT:
A handle has a box end with an internal wall that confines a through-bore to receive movably a pair of identical rollers. The rollers has an eccentric shaft fixed between them and a central rectangular opening that extends through the eccentric shaft. An annular space formed around the eccentric shaft and confined by the internal wall of the box end includes a widest portion with a first length on one side of the eccentric shaft and a narrowest portion with a second length formed on the other side of the eccentric shaft. A plate is fixed perpendicularly between the rollers. A compression spring has one end secured to the plate. A cylindrical member with a diameter that is smaller than the first length but larger than the second length is disposed between the rollers. A second end of the compression spring connects securely the cylindrical member and biases the same such that the cylindrical member is located between the widest and narrowest portions wherein the cylindrical member frictionally abuts the internal wall of the box end and the eccentric shaft. The rollers are retained in the through-bore by a pair of retaining plates.
REFERENCES:
patent: 3771632 (1973-11-01), Kodousek et al.
patent: 4603606 (1986-08-01), Headen
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