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US 5,326,118 AGranted
Limited tilt unicycle
AssigneeResearch & Design Studio, Inc.
InventorRichard DeRosa
Life of this patent
Estimating the term…
Abstract
A unicycle includes a center wheel with two diametrically opposed pedals. Each pedal has a tilt limiting ground contactor such as a wheel or ball affixed to the free end. The ground contactor contacts the ground at the lowest point of pedal travel if the tilt limit is exceeded.
Claims14
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles from one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surfaces;
- (e) said tilt limiting means are affixed to each of said foot supports at a free end thereof distal to said wheel;
- and
- (f) said tilt limiting means are spheric in shape and are rigidly affixed to each of said foot supports.
5 more elements
The device of claim 3, wherein said spheric tilt limiting means are removeable from said foot supports and interchangeable with a rotatable member.
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles from one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surface;
- (e) said tilt limiting means are affixed to each of said foot supports at a free end thereof distal to said wheel;
- and
- (f) wherein said tilt limiters are secondary wheels and said secondary wheels are rotatably attached to said foot supports.
5 more elements
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles form one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surface;
- (e) said tilt limiting means are affixed to each of said foot supports at a free end thereof distal to said wheel;
- and
- (f) wherein each of said foot supports are adjustably attached to said wheel permitting said foot supports to be positioned at a selected distance form an axis of said wheel.
5 more elements
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles form one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surface;
- (e) wherein said wheel has a varying width at the outer peripheral surface thereof.
3 more elements
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles form one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surface;
- (e) wherein said wheel includes an inner wheel to which said foot supports are attached and an outer rim independently coaxially rotatable in a first direction and locked into conjoint rotation with said inner wheel in the opposite direction as controlled by a uni-directional clutch.
3 more elements
A unicycle comprising:
- (a) a wheel;
- (b) a first foot support attached to and extending substantially at right angles form one side of said wheel;
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support;
- and
- (d) tilt limiting means associated with each of said first and said second foot supports for intermittently limiting the angle of tilt of said wheel relative to a supporting surface upon which said wheel may roll to a selected angle by contacting said supporting surface;
- (e) wherein each of said foot supports are pivotally attached to said wheel to allow said foot supports to be placed into a retracted position and a deployed position.
3 more elements
A unicycle comprising:
- (a) a wheel having an outer peripheral surface which contacts a supporting surface upon which said wheel rolls;
- (b) a first foot support attached to and extending substantially at right angles from one side of said wheel;
- and,
- (c) a second foot support attached to and extending substantially at right angles from the opposite side of said wheel in diametric opposition to said first foot support, said first and said second foot supports of a size substantially smaller than the wheel, having at least a portion thereof which is coextensive with said wheel at said peripheral surface.
1 more element
Dependencies are inferred from the claim text.