초록 ▼

A long wearing shaft coupling is comprised of metallic male and female members, and a plastic insert. The plastic insert is interference fitted into the female member, and the male member is slip fitted into the insert. The male member is provided with a number of part-circular shaped in transverse

A long wearing shaft coupling is comprised of metallic male and female members, and a plastic insert. The plastic insert is interference fitted into the female member, and the male member is slip fitted into the insert. The male member is provided with a number of part-circular shaped in transverse cross-section, radially outwardly extending projections which correspond to an equal number of similarly shaped and situated recesses in the insert. The plastic insert transmits the load between the male member and the female member, and is readily replaceable. The projections can be of a slightly smaller radius than the recesses, to allow for misalignments in the shaft. The slip fit nature allows for easy disassembling of the coupling.

대표청구항 ▼

A shaft coupling comprising: a metallic female member; a substantially tubular plastic insert substantially non-rotatably secured to said female member; a metallic male member slip fitted in said insert; said insert being substantially ring-shaped in transverse cross-section and having an inner surf

A shaft coupling comprising: a metallic female member; a substantially tubular plastic insert substantially non-rotatably secured to said female member; a metallic male member slip fitted in said insert; said insert being substantially ring-shaped in transverse cross-section and having an inner surface and an outer surface, said inner surface being defined by at least six equally circumferentially spaced radially outwardly extending substantially straight longitudinally extending recesses part-circular in transverse cross-section, said recesses extending radially outwardly a substantially uniform distance for their entire length, the centers of curvature of said recesses being located on a first imaginary circle about the transverse cross-sectional center of said insert, each recess extending no closer to the cross-sectional center of the insert than the imaginary circle; said male member being substantially cylindrical and comprising a plurality of radially outwardly extending equally circumferentially spaced substantially straight longitudinally extending projections part-circular in transverse cross-section, said projections extending radially outwardly a substantially uniform distance for their entire length, said projections corresponding exactly in number and substantially in situation to the recesses in said insert, the centers of curvature of said projections being located on a second imaginary circle, about the transverse cross-sectional center of the male member having the same diameter as the first circle, each projection being no closer to the transverse cross-sectional center of the male member than the second circle.