Skate wheel and method of making a skate wheel
First Claim
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1. A skate wheel comprising:
- a generally annular hub including an axis of rotation and a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
the hub including a first material;
a generally annular tread mounted to the hub and having at least one outer surface adapted to contact a ground surface;
the tread including a second material which is different from the first material and whose hardness is comprised between about 60 and about 85 Shore A;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove having an axis which corresponds to the axis of rotation of the hub;
the at least one groove being arranged on at least one side of the skate wheel in the area of the connecting interface zone, wherein the connecting interface zone includes an interface surface on which the tread rests, a width of the interface surface being smaller than a maximum width of the tread, wherein, in the interface zone, a peripheral portion of the tread and a peripheral portion of the hub are tangent to one another, and wherein the hub has a width in the area of the groove which is smaller than the width of the interface surface.
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Abstract
A wheel of the roller type, i.e., whose general shape is constituted by two sides the contours of which are circles with respective centers. O,O′, the flanks being substantially parallel with respect to one another, substantially perpendicular to an axis OO′ and connected to one another by a substantially toric surface portion having an axis of rotation OO′. The wheel is particularly intended as a wheel for a roller skate. The wheel includes a generally annular tread with an axis of rotation OO′, one outer surface of which is adapted to come in contact with the ground, the tread being made of at least one first material; a generally annular hub having an axis of rotation OO′ including an interface zone ensuring the cohesion of the hub and of the tread, a substantially cylindrical central surface adapted to cooperate with means fixing the wheel on a rotational shaft having an axis of rotation OO′, and a hub body connecting the central surface to the interface zone, the hub being made of at least one second material, which material is different from the first; and an annular groove having an axis OO′ provided on each of the sides of the wheel, the groove being limited radially on one side by the body of the hub and on the other side by the tread, and the profile of the groove being substantially triangular, trapezoidal, semi-circular or having a shape combining portions of the three preceding shapes.
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Citations
22 Claims
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1. A skate wheel comprising:
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a generally annular hub including an axis of rotation and a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
the hub including a first material;
a generally annular tread mounted to the hub and having at least one outer surface adapted to contact a ground surface;
the tread including a second material which is different from the first material and whose hardness is comprised between about 60 and about 85 Shore A;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove having an axis which corresponds to the axis of rotation of the hub;
the at least one groove being arranged on at least one side of the skate wheel in the area of the connecting interface zone, wherein the connecting interface zone includes an interface surface on which the tread rests, a width of the interface surface being smaller than a maximum width of the tread, wherein, in the interface zone, a peripheral portion of the tread and a peripheral portion of the hub are tangent to one another, and wherein the hub has a width in the area of the groove which is smaller than the width of the interface surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A skate wheel comprising:
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a generally annular hub including an axis of rotation and a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
the hub including a first material;
a generally annular tread mounted to the hub and having at least one outer surface adapted to contact a ground surface;
the tread including a second material which is different from the first material and whose hardness is comprised between about 60 and about 85 Shore A;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove having an axis which corresponds to the axis of rotation of the hub;
the at least one groove being arranged on at least one side of the skate wheel in the area of the connecting interface zone, wherein the connecting interface zone includes an interface surface on which the tread rests, a width of the interface surface being smaller than a maximum width of the tread, wherein, in the interface zone, a peripheral portion of the tread and a peripheral portion of the hub are tangent to one another, and wherein the profile includes a straight portion arranged on the tread and a curved portion arranged on the hub.
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18. A skate wheel comprising:
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a hub having a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
a tread attached to the hub and having at least one outer surface adapted to contact a ground surface;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove arranged on each side of the connecting interface zone;
each of the at least one annular groove having an axis which corresponds to the axis of rotation of the hub and having a profile; and
a smallest width of the skate wheel being defined between a lowest portion of one groove on one side of the interface zone and a lowest portion of another groove on another side of the interface zone, wherein the smallest width is arranged in the hub, and wherein the smallest width is less than a width of the connecting interface surface. - View Dependent Claims (19, 20)
wherein a lower most portion of each groove is at least one of curved, circular, and partially circular.
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20. The wheel of claim 18, wherein the tread has a hardness in the range of between about 60 and about 85 Shore A;
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wherein a widest portion of the hub, parallel to the rotation axis, is substantially approximately equal to a widest portion of the tread.
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21. A skate wheel comprising:
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a generally annular hub including an axis of rotation and a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
the hub including a first material;
a generally annular tread mounted to the hub and having at least one outer surface adapted to contact a ground surface;
the tread including a second material which is different from the first material and whose hardness is comprised between about 60 and about 85 Shore A;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove having an axis which corresponds to the axis of rotation of the hub;
the at least one groove being arranged on at least one of side of the skate wheel in the area of the connecting interface zone; and
the at least one groove having a profile, wherein the profile of the at least one groove comprises at least one of at least one straight profile and at least one curved profile, and wherein the interface zone includes an interface surface on which the tread rests, and wherein a width of the interface surface is smaller than about 80% of a width of the cylindrical central surface, and wherein the hub has a width in the area of the groove which is smaller than the width of the interface surface.
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22. A skate wheel comprising:
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a generally annular hub including an axis of rotation and a substantially cylindrical central surface adapted to cooperate with a mechanism for fixing the wheel on a shaft;
the hub including a first material;
a generally annular tread mounted to the hub and having at least one outer surface adapted to contact a ground surface;
the tread including a second material which is different from the first material and whose hardness is comprised between about 60 and about 85 Shore A;
a connecting interface zone being defined between the hub and the tread;
at least one annular groove having an axis which corresponds to the axis of rotation of the hub;
the at least one groove being arranged on at least one of side of the skate wheel in the area of the connecting interface zone; and
the at least one groove having a profile, wherein the profile of the at least one groove comprises at least one of at least one straight profile and at least one curved profile, and wherein the profile includes a straight portion arranged on the tread and a curved portion arranged on the hub.
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Specification
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Current AssigneeSalomon SA (Anta International Group Holdings Ltd.)
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Original AssigneeSalomon SA (Anta International Group Holdings Ltd.)
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InventorsGaly, Philippe
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Primary Examiner(s)Stormer, Russell D.
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Application NumberUS09/702,890Time in Patent Office1,070 DaysField of Search301/5.301, 301/5.304, 301/5.306, 301/5.307, 301/5.308, 301/5.309, 280/11.22, 280/11.23US Class Current301/5.307CPC Class CodesA63C 17/223 Wheel hubs
