In-line roller skate with frame

• US 4,909,523 A
• Filed: 06/12/1987
• Issued: 03/20/1990
• Est. Priority Date: 06/12/1987
• Status: Expired due to Fees

• Current Assignee: Rollerblade USA Corporation
• Original Assignee: Rollerblade USA Corporation
• Inventors: Olson, Brennan J.
• Primary Examiner(s): Marmor, Charles A.
• Assistant Examiner(s): JOHNSON, BRIAN L
• Application Number:
  US07/057,055
• Time in Patent Office: 1,012 Days
• Field of Search: 280/11.12, 280/11.19, 280/11.2, 280/11.22, 280/11.23, 280/11.27, 280/11.3, 280/847, 280/848, 280/852, 280/152.1, 280/152.3, 301/5.3, 301/5.7, 296/198, 296/901
• US Class Current: 280/11.225
• CPC Class Codes: A63C 17/0073 with offset wheel, i.e. wheel contact point to surface offset from other associated wheel
• CPC Class Codes: A63C 17/06 single-track type
• CPC Class Codes: A63C 17/223 Wheel hubs
• CPC Class Codes: A63C 17/226 Wheel mounting, i.e. arrangement connecting wheel and axle mount

Abstract

An in-line roller skate includes a new lightweight frame and brake of synthetic material and embodies structurally interacting components which cooperate to counter and absorb the strain and shock of road bumps and vibration encountered at high speeds by heavy riders and which have in the past required heavy, metal frames. An improved wheel hub solves the problem of overheating bearings and wheel melting encountered by earlier skates and permits prolonged, high speed use of the skates on nonlevel riding surfaces by even heavy skaters under hot road surface conditions.

Claims

1. An in-liner roller skate usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with all said axes being perpendicular to said common plane;

a plurality of wheel axles with a said axle positioned on said central axis of each said wheel;

each said wheel including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge; and

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness.

2. The in-line roller skate of claim 1 wherein each said web includes a vertical wall segment which extends downwardly and terminates adjacent said bottom of said frame, said bifurcations and said vertical wall segment defining a y-shaped configuration extending at substantially right angles between the side rails and terminating at said top of said frame with at least one bifurcation of each web bearing against said boot to further support said bifurcations and inhibit vibration or distortion of said webs and said side rails which would cause said axles to become nonparallel.

3. The in-line roller skate of claim 1 wherein said frame is formed of a substantially elastic material having a forwardly extending fender on each said side rail of said frame, said fenders carrying one of said wheels and being flexible laterally of said common plane between a rest position and a displaced position in response to the skater using the wheel between said fenders to push off against the riding surface so as to move said fenders to said displaced position, the flexing of said fenders generating a restoring force in said fenders which further aids in forwardly propelling the skater as said fenders spring back to said rest position while said fender carried wheel bears against the riding surface.

4. An in-line roller skate usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with all said axes being perpendicular to said common plane;

a plurality of wheel axle with a said axle positioned on said central axis of each said wheel;

each said wheel including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge;

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness;

said wheels including two intermediate wheels, a front wheel and a rear wheel with said intermediate wheels being at a lower level than said front and rear wheels;

each of said side rails further including a longitudinally oriented bridge along the top thereof, said bridge projecting laterally from each said side rail and beginning at said sole bracket and terminating at said heel bracket to connect said brackets and also extending adjacent and supporting each of said webs; and

said bridge being at a level above said axles of said intermediate two wheels and angling upward toward said heel bracket and cooperating with said heel bracket, said sole bracket and all said webs so as to better absorb road forces imparted from said axles of said intermediate two wheels and to spread such road forces more evenly through said frame.

5. An in-line roller skate usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with all said axes being perpendicular to said common plane;

a plurality of wheel axles with a said axle positioned on said central axis of each said wheel;

each said wheel further including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge;

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness;

said plurality of webs including a heel web positioned adjacent said heel bracket, a bifurcation of said heel web joining said leading edge of said heel bracket; and

a rigid instep bar connected to and extending between said side rails and connecting to and extending forwardly from said bifurcation which joins said leading edge of said heel web so aS to strengthen said heel bracket.

6. An in-line roller skate usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with said axes being perpendicular to said common plane;

a plurality of wheel axles with a said axle positioned on said central axis of each said wheel;

each said wheel including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge;

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness;

said plurality of webs including a heel web positioned adjacent said heel bracket and further including a sole web positioned adjacent said sole bracket, said heel web and said sole web cooperating with said heel bracket and said sole bracket, respectively, in strengthening the top of said frame and constraining said side rails to remain parallel from top to bottom thereof while helping to spread road generated deformation and vibration forces more evenly to said heel and sole brackets to avoid unwanted concentrations of road forces which could damage said frame; and

a bifurcation of said heel web joins said leading edge of said heel bracket, cooperating with said heel bracket to constrain said side rails to remain parallel and to spread road generated deformation and vibration forces more evenly to said heel bracket to thereby further avoid unwanted concentrations of road forces which could damage said frame.

7. An in-line roller skates usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with all said axes being perpendicular to said common plane;

a plurality of wheel axis with a said axle positioned on said central axis of each said wheel;

each said wheel including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge;

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness;

said plurality of webs including a heel web positioned adjacent said heel bracket and further including a sole web positioned adjacent said sole bracket, said heel web and said sole web cooperating with said heel bracket and said sole bracket, respectively, in strengthening the top of said frame and constraining said side rails to remain parallel from top to bottom thereof while helping to spread road generated deformation and vibration forces more evenly to said heel and sole brackets to avoid unwanted concentrations of road forces which could damage said frame; and

said sole web is positioned below said sole bracket and one of said bifurcations of the said sole web joins said leading edge of said sole bracket to spread road generated deformation and vibration forces along said forwardly and rearwardly extending bifurcations and to said sole bracket to thereby avoid concentrations of road forces that might damage said frame.

8. An in-liner roller skate usable by a skater on a riding surface comprising:

a plurality of wheels centered on a common plane, each said wheel having a central axis of wheel rotation with all said axes being perpendicular to said common plane;

a plurality of wheel axles with a said axle positioned on said central axis of each said wheel;

each said wheel including bearing means for rotatably mounting said wheels for rotation about said axles;

a boot having a heel and sole;

a frame carrying said wheel axles and having a top and a bottom, said frame being formed of a lightweight, plastic-like material and including;

a pair of substantially parallel side rails extending longitudinally forwardly and rearwardly and having a plurality of pairs of axle apertures passing therethrough to mount said axles therein;

a sole bracket attached to said sole of said boot and having leading and trailing edges;

a heel bracket attached to said heel of said boot and having a leading edge;

a plurality of rigid, bifurcated webs spaced longitudinally apart from each other along said side rails, each said web having a forwardly extending bifurcation and a rearwardly extending bifurcation, each said bifurcation connected with and extending between said side rails, with said bifurcations of each web meeting at a convergence, said bifurcations cooperating with each other to reinforce said side rails, to prevent significant deformation of said frame, to maintain said side rails parallel to each other and to keep said wheel axles mutually parallel during coasting so as to avoid undesired friction with said bearing means caused by nonparallel axle alignment when said frame is exposed to deformation and vibration forces generated by road bumps and roughness; and

wherein one of said bifurcations of said sole web is extended to said sole bracket and joins said trailing edge of said sole bracket to spread road generated deformation and vibration forces along said extended bifurcation and to said sole bracket to thereby avoid concentrations of road forces that might damage said frame.