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US 5,452,622 AGranted
Stress dissipation gear
AssigneeMagi Company Ltd
InventorPaul J. Fenelon
Life of this patent
Estimating the term…
Abstract
A gear is comprised of a central radial hub, a radial gear-toothed rim and a stress dissipating structure.
Claims57
A gear comprising:
- a central radial member having a central rotational axis therein;
- a radial rim sharing said central rotational axis and having geared-teeth extending outwardly therefrom, said rim further having an inside rim surface thereof;
- a pair of side wall surfaces radially extending normal to said central rotational axis of said central radial member, said pair of side wall surfaces bordered by an outside peripheral edge concentric with said central rotational axis, said pair of side wall surfaces located radially between said central radial member and said radial rim;
- and
- a stress dissipating structure coupling said radial rim to said central radial member, said stress dissipating structure being clear of a clearance space created between said outside peripheral edge and said radial rim, said stress dissipating structure further dissipating stresses created between said central radial member and said radial rim.
2 more elements
A stress dissipation gear comprising:
- a central radial member having a central rotational axis therein with a pair of side wall surfaces radially extending outward therefrom and being bordered by an outside peripheral edge to form a web portion, said side wall surfaces being generally planar, said central radial member operable for being rotated about its central rotational axis by a power generating means;
- a radial rim member having the same central rotational axis as said central radial member, said radial rim member having geared-teeth extending outwardly therefrom, said radial rim member further having an inside rim surface being radially planar in attitude, said inside rim surface being predominately of greater diametral circumference than the diametral circumference of said outside peripheral edge of said central radial member;
- and
- a resilient member being of a radial disk-like shape with a pair of generally planar side faces thereof bordered by a radially outer surface and a radially inner surface, said resilient member being attached to said radial rim member and said central radial member by attachment of said radially outer surface of said resilient member to said inside rim surface and attachment of said radially inner surface of said resilient member to a portion of said central radial member other than to said outside peripheral edge thereof, said resilient member being clear of a clearance space created between said outside peripheral edge of said central radial member and said radial rim member.
1 more element
A gear comprising:
- a hub having a circumferential outer wall thereabout surrounding a central rotational axis therein;
- a radial rim coaxially coupled with said hub, said rim having geared teeth extending outwardly therefrom and having an inside rim surface;
- means for coupling said hub and rim together;
- a first set of rotatably deformable formations attached to said circumferential outer wall of said hub;
- a second set of rotatably deformable formations projecting from said inside rim surface;
- and
- said first and second sets of rotatably deformable formations allowing said rim to rotate somewhat independently from said hub while dissipating stresses therebetween and encouraging a differential reduction in rotational movement between said rim and said hub coupled thereto.
4 more elements
A gear comprising:
- a hub having a circumferential outer wall thereabout surrounding a central rotational axis therein;
- a radial rim coaxially coupled with said hub, said rim having geared teeth extending outwardly therefrom and having an inside rim surface;
- an elastomeric material disposed between said hub and said rim for coupling said hub and rim together;
- a first set of rotatably deformable formations attached to said circumferential outer wall of said hub, said first set of rotatably deformable members having a cylindrical configuration thereto with an outside surface thereof attached to said circumferential outer wall of said hub thereagainst;
- a second set of rotatably deformable formations projecting from said inside rim surface, said second set of rotatably deformable members having a cylindrical configuration thereto with an outside surface thereof attached to said inside rim surface thereagainst;
- and
- said first and second sets of rotatably deformable formations allowing said rim to rotate somewhat independently from said hub while dissipating stresses therebetween and encouraging a differential reduction in rotational movement between said rim and said hub coupled thereto, each of said first and second sets of rotatably deformable members being alternately disposed adjacent to the other such that upon differential rotation of said rim to said hub, said first and said second sets of rotatably deformable members will resiliently interfere with one another.
4 more elements
A gear comprising:
- a hub having a circumferential outer wall with a central portion therein operably engagable with a power generating device for supplying axial rotation thereto, said circumferential wall having a plurality of recesses inwardly extending in a radial manner therewithin;
- a radial rim coaxially surrounding said hub, said radial rim having geared teeth extending outwardly therefrom, said radial rim further having an inside rim surface with a plurality of recesses radially extending outward therefrom;
- and
- an elastomeric material having a body thereof with a first plurality of projections extending therefrom interlockably attached to said circumferential outer wall of said hub and said plurality of recesses therewithin, said body of said resilient member further having a second plurality of projections extending therefrom interlockably attached to said inside rim surface and said plurality of recesses therewithin;
- whereby said resilient member couples said radial rim to said hub thereby allowing said geared teeth of said radial rim to transmit power to a mating part engaged therewith, said elastomeric material dissipating torsional stresses created between said hub and said radial rim.
2 more elements
A gear comprising:
- a hub having a central rotational axis and a circumferential outer wall therearound, a pair of sidewall surfaces radially extending normal to said central rotational axis thereby defining a web therebetween, said pair of sidewall surfaces bordered by an outside peripheral edge;
- a radial rim sharing said central rotational axis and having geared teeth extending outwardly therefrom, said rim further having an inside rim surface with a rib radially projecting inward therefrom, said rib of said rim further including a median ledge, an intermediate radial section and a distal ledge thereof;
- said median ledge of said rib opposing said outside peripheral edge of said web thereby defining a first transverse leg of a gap therebetween;
- said intermediate radial section of said rib opposing one of said pair of side wall surfaces of said web thereby defining a radial leg of said gap therebetween;
- and
- said distal ledge of said rib opposing said circumferential outer wall of said hub thereby defining a second transverse leg of said gap therebetween, said second transverse leg radially offset from said first transverse leg therenear.
3 more elements
A gear comprising:
- a hub having a central rotational axis and a circumferential outer wall therearound;
- a radial rim sharing said central rotational axis and having geared teeth extending outwardly therefrom, said rim further having an inside rim surface thereof;
- a set of spokes radially extending between said hub and said rim, said set of spokes being substantially rigid in a radial direction and substantially flexible in a direction of rotation;
- and
- an elastomeric material juxtapositioned between said hub and said rim and also located between an adjacent pair of said set of spokes.
2 more elements
A gear comprising:
- a hub having a central rotational axis and a circumferential outer wall therearound;
- a radial rim sharing said central rotational axis and having geared teeth extending outwardly therefrom, said rim further having an inside rim surface thereof;
- a substantially rigid anti-buckling plate having an annular configuration thereto with a portion thereof juxtapositioned between said central radial member and said rim;
- and
- a set of spokes radially extending between said hub and said rim, said set of spokes being substantially rigid in a radial direction and substantially flexible in a direction of rotation.
2 more elements
A gear comprising:
- a hub having a central rotational axis and a circumferential outer wall therearound;
- a radial rim sharing said central rotational axis and having geared teeth extending outwardly therefrom, said rim further having an inside rim surface thereof;
- a set of spokes radially extending between said hub and said rim, said set of spokes being substantially rigid in a radial direction and substantially flexible in a direction of rotation, each of said set of spokes having a proximal end and a distal end joined by a median segment, each of said set of spokes having a first and a second type of spoke alternately disposed;
- said first type of spoke defined by an expanded proximal end along said direction of rotation and said median segment constricted relatively narrower than both said proximal and distal ends thereof;
- and
- a second type of spoke defined by an expanded distal end along said direction of rotation and said median segment constricted relatively narrower than both said distal and proximal ends thereof.
3 more elements
A gear comprising:
- a hub having a central rotational axis and a circumferential outer wall therearound;
- a radial rim sharing said central rotational axis and having geared teeth extending outwardly therefrom, said rim further having an inside rim surface thereof;
- a first set of spokes radially projecting from said circumferential outer wall of said hub to said inside rim surface, said first set of spokes being substantially rigid in a radial direction and being somewhat flexible in a direction of rotation;
- and
- a second set of spokes radially projecting from said circumferential outer wall of said hub to said inside rim surface, said second set of spokes being substantially rigid in a radial direction and being somewhat flexible in a direction of rotation, said second set of spokes juxtapositioned transversely adjacent and circumferentially staggered in relation to said first set of spokes.
2 more elements
Dependencies are inferred from the claim text.