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US 6,551,192 B1Granted
Obstacle assembly for bikes, skateboards and rollerblades
AssigneeHedstrom Corporation
InventorsFrederick M. Rieber, Frank Bork
Life of this patent
Estimating the term…
Abstract
Obstacle apparatus includes at least one ramp for launching a bicycle, skateboard or rollerblade rider into the air. The apparatus may also include a second similar ramp and a bridge for releasably connecting the elevated ends of the two ramps in-line so as to produce an in-line obstacle over which riders may roll. The apparatus may also include a grind rail which may be releasably attached to the elevated end of one or both of the ramps so that the ramp/rail assembly may be used by skateboarders and the like to perform various acrobatic feats. The apparatus components are rugged and reliable yet they can be made in quantity at minimum cost. Furthermore, because of their unique designs, they may be shipped and stored in a minimum amount of space.
Claims45
Obstacle apparatus comprising a ramp body having
- a front end;
- a rear end there being a longitudinal axis extending between said ends;
- an inclined top wall with front and rear edges and opposite side edges;
- a pair of side walls extending down from the side edges of the top wall to a horizontal plane that forms an acute angle with the top wall at the front end of the ramp body;
- a rear wall at the rear end of the ramp body, said rear wall extending from the rear edge of the top wall down to said plane so as to define a ledge, and
- means at said rear wall for interfitting with a bridge supported on said ledge.
3 more elements
Obstacle apparatus comprising a bridge having
- a generally rectangular top wall having front and rear edges and opposite side edges defining four corners;
- a pair of parallel side walls depending from the opposite side edges of the top wall and having opposite end segments;
- a first set of spaced-apart ribs depending from said top wall and extending between the side walls;
- a second set of parallel ribs depending from the top wall and extending perpendicular to the first set of ribs, said first and second sets of ribs being joined in a grid;
- means including said ribs at said corners for securing the bridge to a pair of ramps, said opposite end segments of the side walls and those ribs of the second set of ribs adjacent to said side walls extending below the remainders of the ribs to form securing means constituted by a set of four depending locking tabs.
2 more elements
Obstacle apparatus comprising a bridge having
- a generally rectangular top wall having front and rear edges and opposite side edges defining four corners;
- a pair of parallel side walls depending from the opposite side edges of the top wall and having opposite end segments;
- a first set of spaced-apart ribs depending from said top wall and extending between the side walls;
- a second set of parallel ribs depending from the top wall and extending perpendicular to the first set of ribs, said first and second sets of ribs being joined in a grid;
- means including said ribs at said corners for securing the bridge to a pair of ramps, and
- said opposite end segments of the side walls and those ribs of the second set of ribs adjacent to said side walls extending below the remainders of the ribs to form securing means constituted by a set of four depending locking tabs.
3 more elements
Obstacle apparatus comprising
- an elongated rail having first and second ends;
- a leg having opposite ends, one of which is secured to the rail at a located thereon spaced a short distance from the first end thereof so that the leg extends substantially perpendicular to the rail;
- a transverse foot mounted to the other end of the leg, said foot extending out appreciably on opposite sides of the rail;
- first support means for supporting said foot at a elevated location, and
- second support means for supporting the second end of the rail.
2 more elements
Obstacle apparatus comprising
- an inclined top wall having front and rear edges and opposite side edges;
- a pair of opposite side walls extending from said side edges to a generally horizontal plane that forms an acute angle with the top wall at the front edge thereof;
- a rear wall extending from said rear edge to said plane, said rear wall having
- a plurality of facets including one facet that has a horizontal component so as to define a ledge for supporting a bridge, and
- interfitting means at said one facet for interfitting with a bridge supported by said ledge.
2 more elements
Obstacle apparatus comprising
- a first ramp body having a front end, a rear end, an inclined top wall with front and rear edges and opposite side edges, a pair of opposite side walls extending down from the side edges of the top wall to a horizontal plane that forms an acute angle with the front wall at the front end of the ramp body and a rear wall at the rear end of the ramp body, said rear wall extending from the rear edge of the top wall down to said plane;
- a second ramp body similar to the first ramp body, said first and second ramp bodies being positioned with their rear walls in spaced opposition;
- a bridging member extending between the rear walls of the first and second ramp bodies, said bridging member having opposite first and second edges, and
- means for releasably connecting the first and second edges of the bridging member to the rear walls of the first and second ramp bodies, respectively, so that the top wall of the bridging member is spaced above said plane and even with the top wall rear edges of the first and second ramp bodies.
1 more element
Obstacle apparatus comprising
- a first ramp body having a front end, a rear end, an inclined top wall with front and rear edges and opposite side edges, a pair of opposite side walls extending down from the side edges of the top wall to a horizontal plane that forms an acute angle with the front wall at the front end of the ramp body and a rear wall at the rear end of the ramp body, said rear wall extending from the rear edge of the top wall down to said plane;
- a grind rail having first and second ends and a longitudinal axis extending between said ends;
- means for releasably securing the first end of the grind rail to the rear wall of the ramp body so that said first end is substantially even with the top wall rear edge of said body, and
- means for supporting the second end of the grind rail above said plane.
1 more element
Dependencies are inferred from the claim text.