Abstract: A rear suspension system for a two wheel cycle such as a bicycle or motorcycle having a main frame which includes a rearwardly or downwardly inclined down tube. A vertically pivotable rear frame assembly includes a pair of swing arms which extend rearwardly from pivotal connections on the main frame. Rear wheel fitments are carried by the swing arms. A pair of elongated tubelike or rodlike chain stays extend forwardly from the rear fitments at a fixed angle relative to the swing arms. A tubular shock absorber assembly is supported on the down tube and has a spring urging a coupler portion thereof in a forward and upward direction. A double-pivoted link is pivotally connected between the forward ends of the chain stays and a bell crank assembly which is pivotally connected to the underside of the frame, and in turn, connects the double-pivoted link to the coupler portion of the shock absorber assembly.

Abstract: Exercising machine having a vaned fanwheel rotatably mounted on a frame in open air and arranged to absorb energy by rotating the vane blades against ambient air. The fanwheel comprises a hub with a plurality of air vanes which are movable in an orbit around the axis of the hub. Each vane comprises a blade having leading and trailing surfaces. In the preferred example shown, each blade is a semi-cylindrical plate mounted with the hollow, concave side comprising the leading surface, and the streamlined, convex side comprising the trailing surface. The vanes are circumferentially spaced apart to substantially eliminate drafting and stagnant wake regions between blades. The coefficient of drag for the concavo/convex vane blades of this invention are substantially twice that obtained by flat plate vane blades conventionally used. Alternative forms of the invention are illustrated with semi-spherical concavo/convex and semi-cylindrical plano/convex blades. All have in common trailing streamlined convex surfaces.

Abstract: A rear suspension system for a two wheel cycle such as a bicycle or motorcycle having a main frame which includes a rearwardly or downwardly inclined down tube. A vertically pivotable rear frame assembly includes a pair of swing arms which extend rearwardly from pivotal connections on the main frame. Rear wheel fitments are carried by the swing arms. A pair of elongated flexible tubelike or rodlike chain stays extend forwardly from the rear fitments at a fixed angle relative to the swing arms. A tubular shock absorber assembly is supported on the down tube and has a spring urging a coupler portion thereof in a forward and upward direction. A bell crank assembly, pivotally connected to the underside of the frame, connects the chain stays to the coupler portion of the shock absorber assembly.

Abstract: Frame for a bicycle type apparatus such as a bicycle type exerciser or a bicycle, having a closed, rectangular box beam cross section reach tube oriented with the major axis of the cross section in a vertical plane secured between a handlebar head tube and a seat mast. The reach tube has an angular configuration including a rear horizontal section extending along the chain guard, and an upwardly and forwardly extending diagonal section.

Abstract: In an exercising apparatus for supporting a bicycle, a pivotally mounted member connects to a rear axle of the bike to constrain movement of the axle about the pivot point of the support member. A support roller, located on the horizontally opposite side of the rear axle as is the pivot point, cooperates with the support member to support the rear wheel. A flywheel and variable load means are conneced to the roller to simulate the inertia and variable load experienced during the riding of a real bicycle. Preferably, a front fork support connects to the front fork of a bicycle and has an adjustable feature which can change the elevation of the bicycle frame. The front fork support is inclined and connected to this rear axle support member so that when a rider of a bicycle connected to the apparatus leans toward or shifts his weight toward the front fork support, the front fork support bends and the rear tire of the bicycle pivots toward the roller to maintain frictional contact between the tire and roller.

Abstract: In an exercising apparatus for supporting a bicycle, a pivotally mounted member connects to a rear axle of the bike to constrain movement of the axle about the pivot point of the support member. A support roller, horizontally located on the opposite side of the rear axle relative to the pivot point supports and applies a load to the rear wheel. An inclined front wheel support means has a stiffness such that when the operator shifts his weight toward the front wheel support means, a rearward force is exerted on the rear tire.

Abstract: In a bicycle-type exercising apparatus, a roller is driven by the rear wheel of the bicycle. The roller is connected to a load device which varies the load resistance experienced by the person exercising on the exercise apparatus. The load device comprises a differential band brake having a pivoted member with the opposite ends connected to opposing ends of a brake band. A spring is inserted between one end of the pivoted member and the corresponding end of the brake band. A self-correcting servomotor is connected to the pivoted member to control the braking force. A computer may be programmed to control the motion of the servomotor, and thus control the forces exerted by the load device.

Abstract: Frame for a bicycle type apparatus such as a bicycle type exerciser or a bicycle, having a closed, rectangular box beam cross section reach tube oriented with the major axis of the cross section in a vertical plane secured between a handlebar head tube and a seat mast. The reach tube has an angular configuration including a rear horizontal section extending along the chain guard, and an upwardly and forwardly extending diagonal section.

Abstract: A cycle computer has a pair of push-buttons connected respectively to a mode switch and to an on/off switch. Sequential actuation of the mode switch places the computer selectively in one of a plurality of Modes including a "stop watch" mode. Alternate actuation of the on/off switch, while in the stop watch mode, turns the stop watch function on and off. Simultaneous depression of both push-buttons, while the computer is in stop watch mode, resets the stop watch mode and at least two other modes. To facilitate resetting under poor visibility conditions, or when it would be unsafe to divert the rider's attention from the road or other traffic, the push-buttons abut along a common line and have a shared recess straddling that line which can be located by feel alone, enabling the push-buttons to be depressed simultaneously with one thumb while both rider's hands safely grip the handlebar.

Abstract: A cyclist shoe comprises a sole and an upper. The upper has a vamp with a variable throat located between side panels. Separately adjustable inner and outer straps have releasable hook and pile connections. Opposite end portions of each strap are secured to the side panels. The inner strap extends across the throat and along one side panel in a diagonal direction for primarily fitting the shoe to a cyclist's instep. The outer strap comprises a relatively large, flexible panel covering a substantial portion of the vamp around the throat. It extends across the vamp and the side panels in a transverse direction for primarily fitting the shoe to the cyclist's forefoot. A free end of the inner strap is exposed through a window in the outer strap enabling adjustment of the inner strap independently of the outer strap.

Abstract: In an exercising apparatus for supporting a bicycle, a pivotally mounted member connects to a rear axle of the bike to constrain movement of the axle about the pivot point of the support member. A support roller, located on the horizontally opposite side of the rear axle as is the pivot point, cooperates with the support member to support the rear wheel. A flywheel and variable load means are connected to the roller to simulate the inertia and variable load experienced during the riding of a real bicycle. Preferably, a front fork support connects to the front fork of a bicycle and has an adjustable feature which can change the elevation of the bicycle frame.

Abstract: A signal detector for a cycle computer comprises a head, a sensor supported by the head, and a flexible strap having one end connected to the head. The head includes a housing having a curved abutment surface shaped to bear against the curved abutment surface of a support tube such as a leg of a bicycle fork or a rear stay tube. The head has a strap-guiding surface defining one wall of a strap-receiving passageway extending completely through the housing and tangent to the curved abutment surface. The passageway has a strap entrance portion adjacent the curved abutment surface and a strap exit portion remote from it. The strap has transverse teeth along the inside surface facing inwardly into the passageway when the strap extends through it. In the embodiment disclosed, the head is molded of plastics material and includes an integral pawl in the passageway.