摘要:
A spoke for an at least partially muscle-powered bicycle and wheel including a spoke where the spoke comprises a spoke body with a hub-side, first end and a rim-side, second end and the first end and the second end are remote from one another. The spoke body is elongated and includes at least one first center region disposed closer to the first end than to the second end, and at least one second center region disposed closer to the second end than to the first end. The first center region and in the second center region of the spoke body each include flattened cross-sections substantially accommodated in a longitudinal plane. In the second center region the spoke body is configured more asymmetric than in the first center region.
摘要:
A bicycle disc or spider wheel including: a hub; a rim having a radially outer tire-coupling region, a first sidewall, a second sidewall; an axis of rotation; and a median plane. A pair of pretensioned disc or spider wheel-type structural elements are integral with the hub and with the rim. The first sidewall extends on a first side of the wheel, with respect to the median plane, on which a component of a motion transmission system or, when there is none, a disc of a disc brake is provided at the hub, and the second sidewall extends on the opposite side, with respect to the median plane. The first sidewall of the rim has a minimum distance from the median plane that is smaller than that of the second sidewall of the rim.
摘要:
An aerodynamically optimized drag-reduction means and method for optimal minimization of the drag-induced resistive forces upon a terrestrial vehicle wheel, where the drag-induced resistive moments on wheel surfaces pivoting about the point of ground contact are reduced, and the vehicle propulsive forces needed to countervail the resistive forces on the wheel are reduced. The drag reduction means includes: a streamlined wheel cover positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; a streamlined wind-deflecting fairing positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; an engine exhaust pipe diposed on a vehicle whereby exhaust gases deflect headwinds to shield the faster moving upper wheel surfaces of an automotive wheel; an automotive spoked wheel having streamlined oval-shaped wheel spokes arranged in one or more rows for greater axial strength; a streamlined tailfin rotatably attached to a wheel spoke, which thereby may pivot about the spoke in response to varying crosswinds; and a tire having streamlined tread blocks arranged in an aerodynamic pattern.
摘要:
A power generation system is provided configured for installation within a wheel of a vehicle. The system includes a stator having a plurality of face-mounted permanent magnets; and a rotor having a plurality of windings configured to rotate, with rotation of the wheel, in proximity to the permanent magnets thereby generating a current. The stator is mounted to a brake caliper of the vehicle. Also provided is a wheel-based vehicle display system including a light emitting diode (LED) array arranged on or within a wheel of a vehicle; a power source connected thereto; and a controller connected to the LED array. The display system is configured to display at least one of: textual information, visual images or full-motion video.
摘要:
An aerodynamically optimized drag-reduction apparatus for optimally reducing the drag-induced resistive forces upon a terrestrial vehicle, where the drag-induced resistive moments on wheel surfaces pivoting about the stationary point of ground contact are reduced, and the vehicle propulsive forces needed to countervail the resistive forces on the wheel are reduced. The drag reduction apparatus includes: a streamlined fairing positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; an engine exhaust pipe disposed on a vehicle whereby exhaust gases deflect headwinds to shield the faster moving upper wheel surfaces of an automotive wheel; an automotive spoked wheel having streamlined oval-shaped wheel spokes; a streamlined spoke tailfin rotatably attached to a wheel spoke; a cycle wheel with a tapered spoke having a thin aerodynamic profile near the rim and tapering to a round profile towards the central hub; and a tire having streamlined tread blocks arranged in an aerodynamic pattern.
摘要:
An aerodynamically optimized drag-reduction means and method for optimal minimization of the drag-induced resistive forces upon a terrestrial vehicle wheel, where the drag-induced resistive moments on wheel surfaces pivoting about the point of ground contact are reduced, and the vehicle propulsive forces needed to countervail the resistive forces on the wheel are reduced. The drag reduction means includes: a streamlined wheel cover positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; a streamlined wind-deflecting fairing positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; an engine exhaust pipe diposed on a vehicle whereby exhaust gases deflect headwinds to shield the faster moving upper wheel surfaces of an automotive wheel; an automotive spoked wheel having streamlined oval-shaped wheel spokes arranged in one or more rows for greater axial strength; a streamlined tailfin rotatably attached to a wheel spoke, which thereby may pivot about the spoke in response to varying crosswinds; and a tire having streamlined tread blocks arranged in an aerodynamic pattern.
摘要:
A bicycle wheel basically has a hub, a plurality of spokes extending outwardly from the hub and an annular rim coupled to the outer ends of the spokes for supporting a tire. The annular rim has a spoke attachment portion with a plurality of openings for receiving the outer ends of the spokes therein. In the most preferred embodiment, the bicycle wheel is a one-piece, unitary wheel. Preferably, the one-piece, unitary bicycle wheel of the present invention is produced by die-casting. The preferred material for bicycle wheel of the present invention is magnesium (Mg). A centrally located rib portion is located between adjacent spoke portions and to reinforce the rim portion between spokes. Rib portions extend radially inwardly from the inner peripheral surface of rim portion. Preferably, the middle segment of each of the rib portions has a radial height that is approximately equal to the base rim height plus more than half of the base rim height. The shapes of spoke portions are designed to absorb the vibrations from the ground as it is being used in the bicycle. This shock absorbing function is enhanced by the use of magnesium for the wheel.
摘要:
A wheel consists of a cast wheel spider which comprises several hollow spokes and which is connected with a rim ring by way of a weld, particularly a friction weld. In the area of the outer circumference, the hollow spokes have internal core openings for a sand core, and the openings are directed toward the rim ring. The wheel spider has bolt bores which are arranged concentrically with resect to a centric wheel opening and which are provided with bore sleeves which are cast approximately in the center inside the hollow spoke and have radially extending reinforcing ribs 11. In the area of the core openings, the wheel spider has at least one reinforcing element between opposite walls of each hollow spoke. The reinforcing element preferably consists of two cylindrically cast pins respectively which extend in parallel to the wheel axis and are arranged at a distance from one another and are situated on both sides of a transverse wheel plane defined by the reinforcing rib.
摘要:
Prior art truck hub has central boss with central axis, a plurality of spokes extending from the boss, and webs extending between the spokes. End faces of spokes commonly crack and by using method of repair the hub can be salvaged by removing from outer end of each spoke, a generally U-sectioned portion of end face and adjacent portions of spoke to form a pair of spaced shoulders on side portions of spoke. An annular rim or band is fitted on shoulders so that cylindrical inner face of band is adjacent generally axial edges of shoulders, and annular end face of band is adjacent radial edges of shoulders and partially annular edges of outer faces of spokes. Band is welded to ends of spokes to provide additional support for tire bearing rim.
摘要:
Prior art truck hub has central boss with central axis, a plurality of spokes extending from the boss, and webs extending between the spokes. End faces of spokes commonly crack and by using method of invention the hub can be salvaged by removing from outer end of each spoke, a generally U-sectioned portion of end face and adjacent portions of spoke to form a pair of spaced shoulders on side portions of spoke. An annular rim or band is fitted on shoulders so that cylindrical inner face of band is adjacent generally axial edges of shoulders, and annular end face of band is adjacent radial edges of shoulders and partially annular edges of outer faces of spokes. Band is welded to ends of spokes to provide additional support for tire bearing rim.