B60B1/0269

TIRE WITH TENSIONED SPOKES

A nonpneumatic tire includes a tread portion, an upper ring, and a plurality of spokes extending radially downward from the upper ring. Each spoke terminates at a lower end having a spoke mount configured to engage a corresponding hub mount. Each spoke is under substantially no tension when the tread portion is not in contact with a ground surface and when each spoke mount is disengaged from its corresponding hub mount. Each spoke is under tension when the tread portion is not in contact with the ground surface and when each spoke mount is engaged with its corresponding hub mount.

Bicycle wheel
09944114 · 2018-04-17 · ·

A method is provided for producing a bicycle wheel made of a fiber composite material, including laminating, in one piece and in one step, a rim, a plurality of spokes each including a first spoke section and a second spoke section, and a center having a first center disc and a second center disc, wherein all fibers for the rim, the spokes, and the center are laid in mold parts in the one step; curing the laminated rim, spokes, and center to form the bicycle wheel; and removing the formed bicycle wheel in said one piece from the mold, wherein the spokes are laminated and cured such that the first spoke section and the second spoke section have a substantially straight shape.

NON-PNEUMATIC TIRE
20180056720 · 2018-03-01 · ·

A non-pneumatic tire (1) of the present invention includes an attachment body (11) attached to an axle, a ring-shaped body (13) which surrounds the attachment body (11) from the outside in a tire radial direction, and coupling members (15) which displaceably couple the attachment body (11) to the ring-shaped body (13), wherein a plurality of coupling members (15) are arranged in a tire circumferential direction and include elastic coupling plates (21 and 22) whose opposite ends are respectively coupled to the attachment body (11) and the ring-shaped body (13), and a bending rigidity EI1 of the elastic coupling plates (21 and 22) represented by E1W1t1.sup.3/12 when the average thickness in the tire circumferential direction is t1 (mm), the average width in a tire width direction H is W (mm), and the Young's modulus is E1 (MPa) is smaller than the bending rigidity EI2 of the ring-shaped body (13) represented by E2W2t2.sup.3/12 when the average thickness in the tire radial direction is t2 (mm), the average width in the tire width direction H is W2 (mm), and the Young's modulus is E2 (MPa).

METHOD AND APPARATUS FOR MANUFACTURING SPOKES
20170057280 · 2017-03-02 ·

A method and a device are provided for manufacturing spokes from a wire material, in particular for at least partially muscle-powered two-wheeled vehicles. The spokes include a spoke shaft having at least two shaft sections. The shaft sections differ in at least one cross-section. For shaping the cross-sections, the wire material is reshaped at least in sections by means of a shaping tool. The relative position of the wire material relative to the shaping tool is varied in the axial direction during reshaping. For shaping the cross-sections in the two shaft sections the relative position of the wire material relative to the shaping tool is varied by way of different positioning movements.

Belt drive pedal cycle with side mounted wheels, cantilever chain stay and belt tensioner
12280849 · 2025-04-22 · ·

A pedal driven cycle comprising a cantilevered frame member coupled to a power input sprocket and a driven sprocket; a belt drive connecting the power input sprocket to the driven sprocket; and a side mounted rear wheel releasably coupled to a multi-speed gear hub that is coaxial with the side mounted rear wheel, wherein the multi-speed gear hub is coupled to the driven sprocket.