Roller ski having leg operated braking means

Claim 2

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading to make braking contact with said rearmost set of wheels.

Claim 3

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of said main U-shaped member being mounted outside said free ends of said auxiliary U-shaped member on a common shaft and at least one of the arms of the auxiliary U-shaped member having a brake element projecting outwardly therefrom parallel to the axle of the rearmost set of wheels, said element being adapted to brakingly abut one of the two wheels of said rearmost set on rearwardly swinging said auxiliary U-shaped member.

Claim 4

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of said main U-shaped member being mounted outside said free ends of said auxiliary U-shaped member on a common shaft and at least one of the arms of the auxiliary U-shaped member having a brake element projecting outwardly therefrom parallel to the axle of the rearmost set of wheels, said element being adapted to brakingly abut one of the two wheels of said rearmost set on rearwardly swinging said auxiliary U-shaped member.

Claim 5

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of said main U-shaped member being mounted outside said free ends of said auxiliary U-shaped member on a common shaft; and a continuous bar arranged parallel to the axle of the rearmost set of wheels and passing through the arms of the auxiliary U-shaped member to form end portions projecting outwardly from said member, each end portion of said bar being adapted to brakingly abut a respective one of the two wheels of said rearmost set on rearwardly swinging said auxiliary U-shaped member.

Claim 6

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of said main U-shaped member being mounted outside said free ends of said auxiliary U-shaped member on a common shaft; and a continuous bar arranged parallel to the axle of the rearmost set of wheels and passing through the arms of the auxiliary U-shaped member to form end portions projecting outwardly from said member, each end portion of said bar being adapted to brakingly abut a respective one of the two wheels of said rearmost set on rearwardly swinging said auxiliary U-shaped member.

Claim 7

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being springloadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of the main U-shaped member being mounted inside said free ends of said auxiliary U-shaped member on a common shaft and lower portions of the arms of said main U-shaped member being adapted on rearward swinging of the latter to bear directly against the bight of said auxiliary U-shaped member to cause portions of said bight to bear directly and brakingly against the two wheels of the rearmost set.

Claim 8

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being springloadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading, said free ends of the main U-shaped member being mounted inside said free ends of said auxiliary U-shaped member on a common shaft and lower portions of the arms of said main U-shaped member being adapted on rearward swinging of the latter to bear directly against the bight of said auxiliary U-shaped member to cause portions of said bight to bear directly and brakingly against the two wheels of the rearmost set.

Claim 9

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading to make braking contact with said rearmost set of wheels, and said arms of said main U-shaped member when the latter is in use being resiliently and detachably connected to the bight of the auxiliary U-shaped member.

Claim 10

Roller ski which comprises a web; axles mounted in parallel on said web adjacent front and rear ends of the latter; two sets of wheels mounted for rotation each on a respective one of said axles of which at least the rearmost set has two wheels, the distance between said axles being a multiple of the diameter of the wheels; a binding for the foot of the skier mounted on said web between said sets of wheels enabling the sole of the foot to be positioned approximately at the level of said axles; a main U-shaped member comprising two arms joined by a bight at their upper ends while their lower free ends are pivotably mounted on said web permitting said member, when not in use, to be swung forwards from a substantially upstanding position in the direction of motion of said ski and downwards against said web with an arm disposed on each longitudinal side of the latter and, when in use, to be swung from said substantially upstanding position in the opposite direction as a result of the pressure exerted by the leg of the skier on being moved rearwardly into abutment with said bight; and brake means comprising an auxiliary U-shaped member comprising two arms joined by a bight at their upper ends while their lower, free ends are pivotably mounted on said web adjacent said rearmost set of wheels, said member being spring-loadedly urged forwardly and away from said wheels and positioned in the rearward path of movement of the main U-shaped member so as to be abuttably swingable rearwardly thereby against the spring loading to make braking contact with said rearmost set of wheels, and said arms of said main U-shaped member when the latter is in use being resiliently and detachably connected to the bight of the auxiliary U-shaped member.