A wheel with flexible spokes, including a rim and hub, and spokes between the rim and hub made of fibrous material that causes the spokes to be both lighter in weight and stronger than comparable steel spokes. The spokes are also flexible and resilient such that they can bend while retaining their integrity and strength.

A non-pneumatic wheel possessing spokes having a compliant shear block providing spoke tension.

One or more embodiments relate to a device configured to form at least partially at least one disc of a wheel having a rim and a hub support defining an axis of rotation, wherein the device has at least: one central zone; one peripheral zone partially surrounding the central zone; one first portion having at least one first layer and extending into the peripheral zone and into the central zone along a first axis; one second portion having at least one second layer and extending into the peripheral zone and into the central zone along a second axis different from the first axis; and in that the first portion and the second portion are superposed relative to one another at the level of the central zone defining a stack.

The present invention discloses a carbon fiber spoke and a manufacturing method thereof. The carbon fiber spoke includes a spoke body made of carbon fiber, a screw bushing that is fit and connected with rim and a nut cap bushing that is fit and connected with the hub. Two end parts of the spoke body are provided with solid joints. The outside surface of the solid joint is provided with a first tapered section. The screw bushing and the nut cap bushing are provided with penetrable mounting holes. The hole wall surrounding the mounting hole is provided with a second tapered section. The mounting hole of the screw bushing and the mounting hole of the nut cap bushing are respectively fixed to the two solid joints; the second tapered section of the mounting hole and the first tapered section of the solid joint are fit and connected together.

A rim includes a rim body and a spoiler portion. The rim body is annular and has two opposite side surfaces connected by an intermediate portion. Each surface has a radial inner portion located on a radial inner side and a radial outer portion located on a radial outer side. The radial outer portion has an extension portion and a radial outer periphery at the outermost side. The extension portion is extended toward the radial outer side from a connecting portion between the radial outer portion and the intermediate portion. The spoiler portion has a plurality of spoiler profiles concavely formed on the radial outer portion of at least one of the two side surfaces. At least one of the spoiler profiles is partially disposed on the extension portion without forming any undulation on the radial outer periphery.

Disclosed are systems and methods of operation for capacitive radio frequency micro-electromechanical switches, such as CMUT cells for use in an ultrasound system. An RFMEMS may include substrate, a first electrode connected to the substrate, a membrane and a second electrode connected to the membrane. In some examples, there is a dielectric stack between the first and second electrodes. The dielectric stack design minimizes drift in the membrane collapse voltage. In other examples, a voltage supply coupled to an ultrasonic array compressing the CMUT cells is adapted to provide a sequence of voltage profiles to the electrodes of the CMUT cell, wherein each profile includes a bias voltage and a stimulus voltage, and wherein a polarity of each subsequent voltage profile in the sequence is opposite to the polarity of the preceding profile. In another example, there is a capacitance sensing circuit provided, which is arranged to determine a drift voltage of the CMUT cell.

A bicycle wheel includes a first panel member including a first rim portion for mounting a tire, a first hub mounting end connected to a hub, a first spoke portion for connecting the first rim portion and the first hub mounting end, a second panel member having a second rim portion for mounting the tire, a second hub mounting end connected to the hub, and a second spoke portion for connecting the second rim portion and the second hub mounting end, wherein the bicycle wheel is formed by joining the first panel member and the second panel member together such that the first panel member and the second panel member are symmetrical to each other about a line passing through the hub and the rim.

A bicycle wheel includes a first panel member including a first rim portion for mounting a tire, a first hub mounting end connected to a hub, a first spoke portion for connecting the first rim portion and the first hub mounting end, a second panel member having a second rim portion for mounting the tire, a second hub mounting end connected to the hub, and a second spoke portion for connecting the second rim portion and the second hub mounting end, wherein the bicycle wheel is formed by joining the first panel member and the second panel member together such that the first panel member and the second panel member are symmetrical to each other about a line passing through the hub and the rim.

A spoked wheel structure for a vehicle includes a wheel rim having a channel for accommodating a tire, a wheel hub adapted to be rotatably mounted with respect to the vehicle, and a plurality of wheel spokes mounted interposed and tightened between the wheel hub and the wheel rim, wherein each wheel spoke includes an elongated spoke stem and an enlarged spoke head. The wheel rim includes a plurality of spoke engaging seats being configured to receive and retain a respective spoke. Each spoke seat includes a through hole including a first hole portion, a second hole portion, and a hole retaining surface configured to abuttingly retain the enlarged spoke head when the respective spoke is tightened between the wheel rim and the wheel hub. The wheel structure also includes safety elements engageable in the spoke seats to press each enlarged spoke head against the respective hole retaining surface.

A wheel assembly includes a mounting plate for attachment to a rotatable axle; a plurality of friction plates each engaging one of a plurality of parts of a tire assembly; and a plurality of cable members each connecting the mounting plate to the tire assembly such that each cable member extends radially outward through a first hole in one of the friction plates and radially inward through a second hole in the one friction plate to form a loop about the one friction plate and the one part of the plurality of parts of the tire assembly.