Inline skates are known in the art and provide a user with recreation, exercise, competition, and/or transportation. Conventional inline skates typically include an inverted-U-shaped frame having parallel sidewalls configured to mount wheel axles therebetween, with an upper wall configured to be fixedly attached to a sole or base portion of a boot that receives the user's foot. A plurality of wheels are mounted to the frame between the sidewalls, typically rotatably about parallel spaced-apart axes. Prior art inline skate rotatably mount 2, 3, 4, or 5 wheels to the parallel sidewalls. See, for example, U.S. Pat. No. 6,921,093, to Svensson et al., which is hereby incorporated by reference in its entirety. See also U.S. Pat. No. 7,214,337, to Grande, which is hereby incorporated by reference in its entirety.
Skate vibration during use, caused by traversing rough surfaces may result in premature skater fatigue and/or discomfort. On source of undesirable vibration is the conventional mounting of the wheels of the inline skate to a U-shaped frame with the wheels supported on both ends between the sidewalls of the skate frame. Prior attempts to minimize both skater discomfort and premature fatigue associated with skate vibration include skates having various types of mechanical systems to isolate the foot of the skater from vibrational energy. Such systems rely on combinations of mechanical pivot and linkage systems, together with dampeners and shock absorbers to minimize the adverse effect of vibrational energy.
Conventional frame construction, with relatively rigid parallel sidewalls connected by an upper wall for mounting the base, and further connected by wheel axis near the bottom of the sidewall, results in a relatively rigid box beam type of structure. It would be beneficial to provide a frame structure that would reduce wheel vibration to improve inline skater with a smoother more comfortable experience.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
A one-sided inline skate frame for an inline skate having a base and a plurality of wheels includes a wheel mounting portion configured to rotatably mount the plurality of wheels in an inline configuration such that the plurality of wheels are disposed on one side of the wheel mounting portion. A box beam sidewall extends upwardly from the wheel mounting portion, the box beam sidewall has an outer portion, an inner portion, an upper portion, and a lower portion, wherein the outer, inner, upper, and lower portions define a channel through the box beam sidewall. A forward base attachment member extending from an upper end of the box beam sidewall, and a rearward base attachment member extending from the upper end of the box beam sidewall, wherein the forward and rearward base attachment members configured to attach to the base.
In an embodiment the wheel mounting portion has a plurality of separate nodes, each node configured to mount at least one of the plurality of wheels.
In an embodiment the wheel mounting portion has three nodes, each of the plurality of nodes configured to rotatably mount at least a corresponding one of the plurality of wheel.
In an embodiment the forward and the rearward base attachment members extend at a right angle from the box beam sidewall.
In an embodiment the rearward base attachment member has an upper portion extending from the box beam sidewall and an L-shaped portion having a first leg extending from the box beam sidewall parallel to the upper portion and a second leg joining the first leg to the upper portion.
In an embodiment the box beam sidewall further includes at least one transverse aperture through the outer portion and the inner portion of the box beam sidewall.
In an embodiment the box beam sidewall further includes at least two transverse apertures through the outer portion and the inner portion of the box beam sidewall.
In an embodiment the box beam sidewall further has at least one edge cutout.
In an embodiment the box beam sidewall is extruded aluminum.
In an embodiment the wheel mounting portion has three mounting nodes, the forward base attachment member is disposed longitudinally between a forward node and a center node, and the rearward base attachment member is disposed longitudinally between the center node and a rearward node.
A one-sided inline skate has a frame, and a foot securing portion with a foot-supporting base attached to the frame, and an ankle collar attached to the base. The frame has a wheel mounting portion configured to rotatably mount the plurality of wheels in an inline configuration such that the plurality of wheels are disposed on one side of the wheel mounting portion. The frame also has a box beam sidewall extending upwardly from the wheel mounting portion, the box beam sidewall comprising an outer portion, an inner portion, an upper portion, and a lower portion, wherein the outer, inner, upper, and lower portions define a channel through the box beam sidewall. A forward base attachment member extends from an upper end of the box beam sidewall, and a rearward base attachment member extending from the upper end of the box beam sidewall, wherein the forward and rearward base attachment members configured to attach to the base.
In an embodiment the wheel mounting portion comprises a plurality of separate nodes, each node configured to mount at least one of the plurality of wheels.
In an embodiment the forward and the rearward base attachment members extend at a right angle from the box beam sidewall.
In an embodiment the box beam sidewall further comprises at least one transverse aperture through the outer portion and the inner portion of the box beam sidewall. In an embodiment the box beam sidewall further comprises at least one edge cutout.
In an embodiment the box beam sidewall is extruded aluminum.
A method for constructing a frame for a one-sided inline skate, includes extruding a skate blank comprising, the blank comprising: i) a box beam sidewall section defining a through channel, ii) a wheel mounting section extending from a bottom side of the sidewall section, and iii) a base mounting section defining a through channel and extending from a top side of the sidewall section; machining the wheel mounting section to produce wheel mounting nodes with through apertures configured to receive wheel axles; machining the sidewall section to shape a front end and a rear end of the sidewall section, and to define at least one transverse aperture through the sidewall section; and machining the base mounting section to define a forward base attachment portion with a mounting aperture and a rearward base attachment portion with a mounting aperture.
In an embodiment the method includes machining the sidewall section to produce an edge cutout in the sidewall section.
In an embodiment the skate blank is an aluminum extrusion.
The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
This disclosure is in the field of inline skates. As used herein, “upward,” “upwardly,” “upper,” and similar terms are defined conventionally to refer to a direction generally perpendicular to axles of the inline skate and away from the ground during use of the inline skate, and “vertical” and “vertically” are similarly defined to mean a direction perpendicular to axles of the inline skate. Similarly, “forward” and “rearward” and similar terms are conventionally defined to refer generally to the direction aligned with the skate frame and perpendicular to the “upward” direction.
Refer now to the FIGURES which illustrate currently preferred embodiments of single-wall inline skates and skate frames in accordance with the present invention. In some embodiments such inline skates may include foot enclosure portions not shown herein.
The skate 100 includes four wheel assemblies 110 rotatably mounted to a frame 120 having a single sidewall 122. In other embodiments the skate may include a different number of inline wheel assemblies 110, for example two, three, five, or six wheel assemblies. Unlike conventional inline skates, the outer or lateral side of the wheel assemblies 110 are mounted for rotation on a corresponding axle assembly 140 that is attached to the sidewall 122 on one side only (i.e., in a cantilevered attachment), such that the wheel assemblies 110 are not obscured by a frame sidewall or other frame structure.
A contoured skate base 102 is attached to the frame 120. The base 102 is configured to underlie and support the skater's foot. The base 102 includes a forward foot portion 102A that is integral with a rearward heel cup portion 102B. An ankle collar 104 is pivotably attached to the heel cup portion 102B.
As seen most clearly in
The plurality of inline wheel assemblies 110 each includes an elastic ground-engaging portion 111 for example an abrasion-resistant, high-density urethane wheel. The ground-engaging wheel 111 is fixedly attached to a hub 113 having a central through aperture. A bearing assembly 112 is installed in the central aperture. The bearing assemblies 112 in a current embodiment includes a pair of coaxial and spaced-apart bearing subassemblies positioned in the wheel 112 central aperture with a spacer therebetween. Each of the wheel assemblies 110 is rotatably mounted on a corresponding one of axle assemblies 140. The axle assemblies 140 are attached to the frame sidewall 122 in a cantilevered arrangement, such that the wheel assemblies 110 are approximately centered below the base 102.
A perspective view of the one-sided frame 120 is shown in isolation in
The sidewall 122 further includes a forward attachment portion 126 extending upwardly from a front section of the wheel mounting portion 124 and a rearward attachment portion 128 extending upwardly from a back section of the wheel mounting portion 124. Each attachment portion 126 and 128 includes an attachment aperture 121. A generally L-shaped forward attachment member 130 extends from the front section of the sidewall 122. The forward attachment member 130 includes a leg 131 fixed to, or integral with, and extending away from the sidewall 122 and an attachment plate 132 extending upwardly from the leg 131. The attachment plate 132 is generally parallel to the forward attachment portion 126 of the sidewall 122. Similarly, an L-shaped rearward attachment member 135 extends from a back section of the sidewall 122. The rearward attachment member 135 includes a leg 136 fixed to, or integral with, the sidewall 122 and an attachment plate 137 extending upwardly from the leg 136. The attachment plate 137 is generally parallel to the rearward attachment portion 128 of the sidewall 122. The attachment plates 132, 137 include an aperture 121′ aligned with a corresponding attachment aperture 121 in the sidewall 122.
The leg 131 of the forward attachment member 130 and the leg 136 of the rearward attachment member 135 are hourglass shaped, i.e., wide at each end and narrow in the middle, as seen most clearly in
Referring again to
In an alternative embodiment (not shown) a transverse attachment plate extends between a top end of the attachment portions 126, 128 and the corresponding attachment plate 132, 137, and the skate base is attached to the frame with attachment members that extend vertically through mounting apertures in the transverse attachment plate.
In alternative embodiments (see, for example,
The attachment member 148 in this embodiment fixes the axle member 141 to the sidewall 122. In alternative embodiments the axle members are permanently fixed to the sidewall 122. For example, the attachment member 148 may be configured with a drive head that only allows the attachment member 148 to be rotated in the direction that tightens the attachment. Alternatively the axle member may be co-formed with the sidewall 122, or formed as a single piece that is permanently affixed to the sidewall 122 by welding, brazing, adhesives, or the like.
It will be appreciated by persons of skill in the art that with this arrangement the main axle member 141 is advantageously not pre-tensioned by the attachment members 148 and 149. In addition, removing and replacing the wheel assemblies 110 is simplified because the main axle member 141 is prevented from rotating when removing and replacing the attachment member 149.
An alternative embodiment of an axle assembly 240 is shown in
Another alternative embodiment of an axle assembly 240 is shown in
The frame 420 has a lower wheel mounting portion 424, a central box beam sidewall 427 that extends up from the wheel mounting portion 424, and forward and rearward base attachment portions 426 and 428 that extend outwardly from an upper end of the box beam sidewall 427. As used herein a “box beam wall” or a “box beam sidewall” is defined to mean a structural wall having inner and outer wall portions (e.g., left and right wall portions) that are connected to each other on opposite edges by joining wall portions (e.g., upper and lower wall portions), such that the wall portions define a channel therethrough. The definition expressly encompasses such box beam structures that also have intermediate connecting members, for example posts or elongate ledges, between the inner and outer wall portions.
In this embodiment the wheel mounting portion 424 is configured to mount three wheels 411 inline. The wheel mounting portion 424 includes a front wheel node 424A, a middle wheel node 424B, and a rear wheel node 424C. Each wheel node 424A, 424B, and 424C is configured to rotatably support a corresponding one of the wheels 411. In other embodiments the wheel mounting portion may be configured to mount more or fewer wheels 411, for example 2, 4, 5, or 6 wheels. The wheel nodes 424A, 424B, 424C in this embodiment define recesses between adjacent wheel nodes, reducing the amount of material in the frame 420 and therefore provide the advantage of a lower-weight frame 420. The plural wheel nodes also provide aesthetic advantages.
In other embodiments the wheel mounting portion 424 may have more or fewer wheel nodes. For example, in an embodiment the wheel mounting portion may include a forward wheel node configured to mount more than one wheel and a rearward wheel node configured to mount one or more wheels. In other embodiments the wheel mounting portion may not define separate wheel nodes, for example the wheel mounting portion may be generally rectangular, defining a linear lower edge (similar to the wheel mounting portion 124 shown in
The box beam wall 427 extends upwardly from, and is generally aligned with, the wheel mounting portion 424. The box beam wall 427 is discussed in more detail below. The forward base attachment plate 426 extends away from a top end of the box beam wall 427 at or near a front end of the box beam wall 427. Similarly, the rearward base attachment plate 428 extends away from a top end of the box beam wall 427 at or near the back end of the wall 427. The attachment plates 426, 428 extend in the direction of the wheels 411. As seen most clearly in
As seen most clearly in
Refer now also to
Referring still to
The box beam walls 431, 433 in this embodiment further define large transverse apertures, for example forward aperture 451 and rearward aperture 453 and an edge cutout 455 between the base attachment portions 426, 428. The apertures 451, 453 and edge cutout 455 reduce the weight of the box beam wall 427, and may be engineered to provide a desired flexibility in the frame 420. In other embodiments the box beam walls may include a plurality of smaller apertures and/or cutouts, for example.
The wheels 411 may be attached to the wheel mounting portion 424 with axle assemblies such as those shown in
In a currently preferred embodiment the one-sided frame 420 is configured to have an extrudable cross section along the length of the frame 420. As will be apparent to persons of skill in the art from
A method for producing the one-sided frame 500 is illustrated in
The wheel mounting section is machined 504 to produce wheel mounting nodes 424A, 424B, 424C, and an aperture for the axles is drilled. The box beam wall section is machined 506 to shape the ends, and to define one or more apertures and edge cutouts, for example the apertures 451, 453 and edge cutout 455. The base mounting section is machined 508 to define the forward base attachment member 426 and the rearward base attachment member 428, including mounting apertures 429.
It is contemplated, and will be apparent to persons of skill in the art, that the inline skate frame 120 shown in
While illustrative embodiments have been illustrated and described, it will be appreciated that various changes can be made therein without departing from the spirit and scope of the invention.
This application is a continuation-in-part of application Ser. No. 15/895,972, filed Feb. 13, 2018, the entire disclosure of which is hereby incorporated by reference herein.
Number | Date | Country | |
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Parent | 15895972 | Feb 2018 | US |
Child | 16378326 | US |