Flat head reversible power ratchets
OwnerMontie Minerinventor
Life of this patent
Estimating the term…
Abstract
A flat headed, reversible power ratchet of relatively small size which uses integral bosses and apertures in its housing to locate and control the movement of its yoke and driving gears on bosses integral to the housing with the driving gear mounted in a bore within the yoke, which has its pawls and pawl controls within the yoke adjacent the gear, and by utilizing a pair of linkages which pivot about the yoke and about the housing in overlapping arcs to stabilize the position of the directional controls during operations.
Claims10
A reversible ratchet comprising an elongated housing, a gear rotatably mounted in the housing, a yoke pivotally disposed about the gear, means for pivoting the yoke about the gear, first pawl means for driving the gear in one rotational direction as the yoke is pivoted about the gear, second pawl means for driving the gear in the opposite rotational direction as the yoke is pivoted about the gear, and reversing means for selecting which pawl means will be in engagement with the gear, said reversing means including a first link pivotally mounted on the housing and also being disposed on the yoke, a second link pivotally mounted on the housing and being located near the yoke, a lever secured to the second link outside the housing, and interlocking means for connecting the first link and second link to each other whereby to permit the first or second pawl means to selectively drive the gear as the lever is selectively positioned with respect to the housing.
In a reversible ratchet which comprises a housing, a yoke pivotally mounted in said housing and provided with a central bore, a gear wheel rotatably disposed in the central bore and provided with a plurality of gear teeth presented toward the yoke, first and second pawls mounted within the yoke on opposing sides of the bore, a reverser comprising first biasing means for urging the first pawl into engagement with the gear wheel, second biasing means for urging the second pawl into engagement with the gear wheel, said reverser comprising a first link pivotally mounted in the housing on top of said yoke and including an upwardly projecting annular element, a second link pivotally mounted in the housing and including an extension provided with a slot in which the element of the first link is movably disposed, said second link also including a post movable disposed in said housing and projecting upwardly therefrom, and a switch lever secured to said post, said first link being provided with directional means for selectively holding the first pawl away from the gear wheel when the lever is positioned to one lateral extreme and conversely for selectively holding the second pawl away from the gear wheel when the lever is positioned to the opposing lateral extreme of movement with respect to the housing.
A reversible ratchet which comprising a yoke pivotally mounted in a housing and provided with a central bore, a gear wheel rotatably disposed in the central bore and provided with a plurality of gear teeth, first and second pawls mounted in the yoke, first biasing means for urging the first pawl into engagement with the gear wheel, second biasing means for urging the second pawl into engagement with the gear wheel, a first link pivotally mounted on said yoke, a second link pivotally mounted on the housing,
Dependencies are inferred from the claim text.