Adjustable stationary exercise bicycle
First Claim
1. A braking system for a stationary exercise bicycle operable to apply rotational resistance to a wheel rotatably mounted to a bicycle frame, the braking system comprising:
- a bicycle frame;
a brake pad movably attached to the frame and engageable against a rotatable wheel, that is mounted to the bicycle frame, to provide rotational resistance to the wheel, andan adjustment mechanism disposed on the frame and operable to vary contact pressure of said brake pad against said wheel, said adjustment mechanism having a force transmitting member displaceable relative to the frame, and a biasing member operatively engaged with the force transmitting member and being elastically deformable by displacing said force transmitting member against a biasing force thereof when compressed, the force transmitting member being movable toward the brake pad to apply additional contact pressure between the brake pad and the wheel, and away from the brake pad by further compressing the biasing member to thereby temporarily reduce the contact pressure between the brake pad and the wheel.
3 Assignments
0 Petitions
Accused Products
Abstract
A new and unique highly adjustable stationary exercise bicycle is presented incorporating a number of features specifically designed for youthful stationary bicycle users. The improvements over the prior art include infinitely adjustable vertical and horizontal seat heights and handlebar heights which are secured in their positions by a quick release lever rather than the standard pop pins. Also included is a lubrication port that allows the surface between the friction member and the working wheel to be lubricated. An emergency brake for the working wheel as well as a quick way to disengage the working wheel from the pedals is provided. Special pedal cage brackets are placed around each pedal so that the youth'"'"'s use of such an exercise bicycle is made much more safely. All of the above elements combine to make this stationary exercise bicycle safe for use by children or adolescents.
27 Citations
24 Claims
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1. A braking system for a stationary exercise bicycle operable to apply rotational resistance to a wheel rotatably mounted to a bicycle frame, the braking system comprising:
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a bicycle frame; a brake pad movably attached to the frame and engageable against a rotatable wheel, that is mounted to the bicycle frame, to provide rotational resistance to the wheel, and an adjustment mechanism disposed on the frame and operable to vary contact pressure of said brake pad against said wheel, said adjustment mechanism having a force transmitting member displaceable relative to the frame, and a biasing member operatively engaged with the force transmitting member and being elastically deformable by displacing said force transmitting member against a biasing force thereof when compressed, the force transmitting member being movable toward the brake pad to apply additional contact pressure between the brake pad and the wheel, and away from the brake pad by further compressing the biasing member to thereby temporarily reduce the contact pressure between the brake pad and the wheel. - View Dependent Claims (2, 3, 7, 8, 11, 12)
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- 4. The braking system of clam 3, wherein said force transmitting member is a shaft and said reaction member is a nut threadably engaged thereto, said nut being held rotationally captive relative to said frame and displaceable along said shaft in response to rotation thereof within said nut, such that force exertedty said shaft against said brake pad is variable by rotating said shaft to control contact pressure of said brake pad on said wheel and therefore rotational resistance against said wheel.
- 9. A biasing mechanism for use with a braking and resistance system of an exercise bicycle, the biasing mechanism comprising a bicycle frame, a force transmitting member operatively linked to the frame and a friction pad movably attached to the frame and displaceable for adjusting contact pressure of the friction pad against a flywheel mounted to the bicycle frame, with the and a biasing member normally urging the force transmitting member toward the friction pad, the biasing member being elastically deformable away from a rest position thereof by displacing the force transmitting member away from the flywheel to reduce the contact pressure between the friction pad and the flywheel, wherein the biasing member is disposed between a first reaction surface that is immobile relative to the frame of the exercise bicycle and a second reaction surface disposed to transmit force from said biasing member to said force transmitting member.
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15. A tensioning mechanism for use with a friction brake and a rotatably mounted flywheel of an exercise bicycle, the tensioning mechanism comprising:
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a bicycle frame; a friction brake movably attached to the frame and engageable against a flywheel, that is mounted to the bicycle frame, to provide rotational resistance to the flywheel; a movable rod acting on the friction brake; a member attached to the rod permitting adjustment of the rod relative to the frame and thereby adjustment of a force between the flywheel and the friction brake by the positioning of said rod; and a biasing member positioned between the frame and the member thus urging the rod towards friction brake, the biasing member being elastically deformable away from a rest position thereof to permit the rod to be pulled and thereby temporarily moved away from the flywheel such that contact pressure between the friction brake and the flywheel is at least reduced. - View Dependent Claims (16, 17, 18, 19)
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20. A tensioning mechanism for use with a braking force applying friction pad and a flywheel of an exercise bicycle, the tensioning mechanism comprising:
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a bicycle frame; a friction pad movably attached to the frame and engageable against a flywheel, that is mounted to the bicycle frame, to provide rotational resistance to the flywheel; a rod, operatively disposed on the frame, having a knob at a top end of the rod; a member located on the rod permitting adjustment of a braking force between the flywheel and the friction pad by relative movement between the rod and the member; and a resilient element through which the rod passes and which is positioned above the member to permit the force to be applied onto the flywheel and to permit the knob and the rod to be pulled upwardly to further compress the resilient element and thereby release at least a portion of the force on the flywheel. - View Dependent Claims (21, 22, 23)
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24. A tensioning mechanism for use with a friction pad and a flywheel of an exercise bicycle, the tensioning mechanism comprising:
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a bicycle frame; a friction pad movably attached to the frame and engageable against a flywheel, that is mounted to the bicycle frame, to provide rotational resistance to the flywheel; an adjustment device comprising a rod operatively disposed on the frame; a member threadedly engaged on the rod permitting adjustment of a braking force between the flywheel and the friction pad by the positioning of said rod by positioning said rod; and a resilient element provided above the member about the rod so as to engage and permit the rod to be moved upwardly to release part of the force on the friction pad.
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Specification