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US 4,740,004 AGranted
Three wheeled cycle with load carrying basket
OwnerWayne W. McMulleninventor
Life of this patent
Estimating the term…
Abstract
A tricycle having two front steering wheels and a rear drive wheel has a frame for accommodating the rear wheel and a mount pivotally connected to the front of the frame carrying a pair of front steering wheels. Handle bars are connected with a tie-rod assembly to the supporting forks for the front steering wheels. The mount has a parallel linkage which allows the frame and the front wheels to bank to facilitate the turning of the tricycle. A basket is suspended below the mount between the front wheels. A lock connected to the beams holds the beams in fixed relation relative to each other. The lock can be released to limit the angle of the bank of the tricycle.
Claims21
A cycle comprising:
- a frame including a generally upright sleeve at the front end thereof, a rear wheel mounted on the frame, means mounted on the frame operable to rotate the rear wheel, a pair of front wheels, mount means attached to the frame locating the front wheels, mount means attached to the frame locating the front wheels generally adjacent opposite sides of the frame, said mount means including a support member secured to the frame, a pair of beams located transversely of the frame, means pivotally connecting the beam to the support member first means rotatably supporting one front wheel, means pivotally connecting the first means to said pair of beams, second means rotatably supporting the other front wheel, means pivotally connecting the second means to said pair of beams, releasable lock means for holding the beams in fixed positions relative to each other and holding the front wheels in general parallel relation to each other, said lock means on being releasable allowing the beams to move relative to each other whereby the frame and wheels of the cycle can bank, steering means movably mounted on the frame connected to the front wheels to concurrently steer said pair of front wheels, said steering means includes generally upright spindle means rotatably mounted within said sleeve for rotation about a generally upright axis, said spindle means having an upper portion, a central portion, and a lower portion, tie-rod means connected between the central portion of the spindle means and both the first and second means, handle bar means connected to the upper portion of the spindle means operable to rotate said spindle means to thereby concurrently turn said pair front wheel means, means for carrying a load located between said pair of front wheel means below said spindle means, and means mounting the means for carrying a load on the lower portion of the spindle means whereby the means for carrying a load turns with said pair of front wheels.
A cycle comprising:
- a frame, rear drive wheel means and front steering wheel means rollably supporting the cycle on a surface, means mounted on the frame operable to rotate the rear drive wheel means to propel the cycle on said surface, means rotatably mounting the rear drive wheel means on said frame, mount means connected to said frame supporting said front steering wheel means, said mount means including a plurality of transverse beams, means pivotally mounting said beams to said frame, said front steering wheel means comprising first front wheel means, first means rotatably mounting said first front wheel means for movement about a generally upright axis, pivot means pivotally connecting said first means to said beams, second front wheel means, second means rotatably mounting said second front wheel means for rotation about a generally upright axis, second pivot means pivotally connecting said second means to said beams, steering linkage means movably mounted on said frame and connected to said first and second front wheel means operable to concurrently rotate said first ans second front wheel means about their respective generally upright axis to steer said cycle, said steering linkage means including generally upright spindle means rotatably mounted on the frame, said spindle means having an upper portion, a central portion, and a lower portion, steering means connected to the upper portion of the spindle means, a tie-rod assembly connected between the central portion of the spindle means and both the first and second means whereby movement of the steering means moves the tie-rod assembly to concurrently turn the first and second front wheel means about their respective generally upright axis, means for carrying a load located between said first and second front wheel means below said spindle means and means mounting the means for carrying a load on the lower portion of the spindle means whereby the means or carrying a load turns with the first and second front wheel means.
A cycle comprising:
- a frame, rear drive wheel means and a pair of front steering wheel means rollably supporting the cycle on a surface, means mounted on the frame operable to rotate the rear drive wheel means to propel the cycle on said surface, means rotatably mounting the rear drive wheel means on said frame, mount means connected to said frame supporting said pair of front steering wheel means, said front steering wheel means comprising first front wheel means, first means rotatably mounting said first front wheel means for movement about a generally upright axis on said mount means, second front wheel means, second means rotatably mounting said second front wheel means for rotation about a generally upright axis on said mount means, steering linkage means movably mounted on said frame and connected to said first and second means operable to concurrently rotate said first and second front wheel means about their respective generally upright axis to steer said cycle, said steering linkage means including generally upright spindle means rotatably mounted on the frame, said spindle means having an upper portion, a central portion, and a lower portion, steering means connected to the upper portion of the spindle means, tie-rod means connected between the central portion of the spindle means and both the first and second means whereby movement of the steering means moves the tie-rod means to concurrently turn the first and second front wheel means about their respective generally upright axis, means for carrying a load located between first and second front wheel means below the spindle means, and means mounting the means for carrying a load on the lower portion of the spindle means whereby the means for carrying a load turns with the first and second front wheel means.
Dependencies are inferred from the claim text.