IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0949201
(1978-10-06)
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발명자
/ 주소 |
- Alvarez Jorge G. (Bolivar 451-3 Mexico 8 D. F. MXX)
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인용정보 |
피인용 횟수 :
14 인용 특허 :
0 |
초록
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A tubular frame, upon which a rear end of a bicycle is supported in elevated position, so that the rear wheel does not engage the ground, but engages a friction wheel, that retards the free rotational movement of the rear drive wheel, so that a rider upon the bicycle must apply physical effort durin
A tubular frame, upon which a rear end of a bicycle is supported in elevated position, so that the rear wheel does not engage the ground, but engages a friction wheel, that retards the free rotational movement of the rear drive wheel, so that a rider upon the bicycle must apply physical effort during a pedaling operation; the frame including two vertical plates, between which a cylindrical fastener is supported, and to which the rear wheel of the bicycle is attached, and the device additionally including a horizontal bar carrying the friction wheel, the bar being adjustable in position, for changing the friction force against the bicycle wheel where adjustable locking of the bar comprises a forward clamp member having a tooth on the underside thereof selectively engaging between ratchet teeth upon the upper side of the bar with the bar being downwardly movable against a compression coil spring mounted on the frame so as to selectively disengage the teeth and a block mounted on the upper side of the bar for being pushed by the exerciser\s foot either forwardly or rearwardly.
대표청구항
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An accessory for exercising on a bicycle, comprising, forward and rearward, spaced-apart, generally U-shaped frame members, each said frame member having an elongated, tubular base member, each of said base members being provided with a foot at each of its ends for supporting said frame members upon
An accessory for exercising on a bicycle, comprising, forward and rearward, spaced-apart, generally U-shaped frame members, each said frame member having an elongated, tubular base member, each of said base members being provided with a foot at each of its ends for supporting said frame members upon a support surface, said base members also being provided with a pair of substantially vertical, upstanding tubular members, each upstanding tubular member being spaced apart and attached to opposite ends of said base member, said frame members being spaced apart in a generally parallel relationship and being attached to each other by a pair of perpendicularly extending, elongated, parallel spaced-apart tubular members, each of said parallel, spaced-apart tubular members having its ends attached to a base member of said forward and rearward frame members, forward and rearward U-shaped clamp members, each of said elongated, tubular base members having one of said clamp members attached thereon substantially equidistant the ends thereof, and equidistant from said parallel, spaced-apart tubular members, said clamp members having their free leg ends attached to said base members between the attached ends of said parallel, spaced apart tubular members, and extending upwardly therefrom, to form an opening between said base member and said clamp member, an elongated, substantially rectangular bar, said substantially rectangular bar being slidably received in said openings and locked therein by adjustable locking means, a pair of substantially rectangular shaped, horizontally spaced-apart plate members, each of said plate members being vertically attached to the upper end of an upstanding tubular member of said rearward frame member, each of said plate members being provided with a U-shaped notch on its upper end to receive an internally threaded, cylindrical fastener and at least one downwardly slanted notch in its forward edge for receiving said cylindrical fastener, the height of said cylindrical fastener being variable between said U-shaped notch and said slanted notch when used with said accessory, said cylindrical fasteners being adapted for attachment to the rear axle of a bicycle, the rear wheel of said bicycle being supported slightly above the upper surface of said rectangular bar for free rotational movement thereabove, a wheel, said wheel being stationarily fastened by fastening means to the end of said rectangular bar, adjacent said rearward, U-shaped clamp and extending substantially vertically upward therefrom, such that when the drive wheel axle of a bicycle is supported within said U-shaped notch or said slanted notch by said cylindrical fasteners, the drive wheel of a bicycle will frictionally engage the outer periheral surface of said wheel, said rectangular bar being forwardly and rearwardly adjustable to increase, or decrease, frictional engagement between said wheel of a bicycle supported on said accessory for increasing or decreasing the force required to turn said wheel by an exerciser, wherein the adjustable locking means comprises the forward clamp member having a tooth on an underside thereof selectively engaging between ratchet teeth upon an upper side of said rectangular bar, said bar being downwardly movable against a compression coil spring upon said tubular base member, so as to selectively disengage said teeth, and a block being mounted upon an upper side of said rectangular bar for being pushed by said exerciser\s foot either forwardly or rearwardly.
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