238results about "Bicycle tyres" patented technology

A new kind of tire utilizes a replaceable tread surface to enable variable tread characteristics determined by a removable riding surface. The tire body defines a slot that extends circumferentially around the tire and receives the removable riding surface. The removable riding surface is attached within the slot by attachment mechanisms. In other embodiments, the variable tread is accomplished via a removable sleeve that fits over the existing tire.

A green bike comprises a frame, two wheels, a first internal-gear module and a second internal-gear module and a transmission element. The frame has a pedal, a front supporting unit, a rear supporting unit, and a seat unit. The two wheels are attached to the front supporting unit and the rear supporting unit, respectively. The transmission element is disposed in the frame or a tube shield linking to the frame. The first internal-gear module and the second internal-gear module are coupled with the pedal and at least one of the wheels. The transmission element links the first and the second internal-gear modules for delivering power to the at least one of the wheels.

A durable, airless, chainless bicycle multiple riders of differing heights is disclosed. The bicycle is propelled by a drive shaft instead of a chain, making the drive assembly more dependable. The tires are made from a solid material and cannot go flat. The frame and other components of the bicycle are either inherently rust resistant or are coated to increase their rust resistance. The bicycle also has a front basket that is mounted such that the basket does not turn when the front wheel turns. Finally, the bicycle has a seat adjustment mechanism which allows the seat height to be adjusted without tools.

A device for transport of air in the tire P or close to it consisting of a chamber K in the shape of a hollow compressible channel, placed along at least a part of the tire perimeter, characterized by the fact that a ring OK is placed at the inner side of the chamber K with the distance of its outer side from the tire axis of rotation equal to 1 to 1.1 multiple of the distance of the bottom side of the chamber K from the axis of rotation of the tire P.

An insert specifically adapted for use with an off-road tire, such as an off-road tire of a motocross motorcycle, or an off-road bicycle. The insert includes an inflatable tube and a foam element which generally conforms to the contours of the off-road tire to provide support to the tire when the tube is inflated. The ability to deflate the insert facilitates installation of the insert between the wheel rim and off-road tire. When inflated, the insert occupies the space between the wheel rim and tire to support a load during use of the wheel.

The present invention relates to a bicycle tire. More particularly, the bicycle tire is formed by foaming synthetic resin materials and is mounted to a rim of a bicycle, wherein the tire is prevented from being unexpectedly separated from the rim in use. That is, the bicycle tire formed by injection-foam molding is characterized in that: a rim coupling portion of the bicycle tire is formed with a plurality of coupling holes at predetermined intervals; and stoppers formed of synthetic resin materials are fixed in the coupling holes, stopped by annular holding protrusions when the tire is mounted to the bicycle rim, and formed of arch surfaces, horizontal surfaces and tilted both end surfaces so that the tilted both end surfaces are protruded when the stoppers are fixed to the coupling holes.

Pneumatic tire, particularly a two-wheeler pneumatic tire, such as a bicycle tire, which includes at least one rubberized casing that is anchored in beads by wrapping bead cores. A tread is provided. An outer covering has a layer thickness of less than or equal to 0.5 mm. The outer covering has a high tear resistance and extends at least over the tread.

A wheel hub assembly of a bicycle wheel is disclosed that include a wheel axle, a rotary pump that may be composed of a pump housing, a pump rotor, a first fluid port configured for fluidly coupling to a pneumatic tire and a second fluid port configured for fluidly coupling to a fluid reservoir. The assembly allows for conveniently and efficiently modifying the tire pressure in bicycles at will while riding, in as many cycles as desired and without contaminating the air inside the tires.

The invention discloses a rubber composition, a processing method, application of the rubber composition to a rubber product, and a production method of the rubber product. The rubber composition comprises a rubber matrix and necessary components, wherein the rubber matrix comprises the following components: being greater than 0 and smaller than or equal to 100 parts of branched polyethylene, greater than or equal to 0 and smaller than 100 parts of ethyene-propylene rubber and ethylene propylene terpolymer; the necessary components comprise the following components: 1.5 to 10 parts of a cross-linking agent, and 40 to 200 parts of a reinforcing filler; the reinforcing filler comprises 5 to 100 parts carbon black, and 5 to 60 parts of white carbon black, and can further comprise one or moreof calcium carbonate, talcum powder, calcined pottery clay, magnesium silicate and magnesium carbonate. The rubber composition is applied for the manufacture of the rubber product. The rubber productcomprises an insulating material for manufacturing high-strength cables and cords, a waterproof roll and a high temperature-resistance conveying belt. The rubber composition has the benefits that theyield and the tearing strength of the rubber product are improved, and the service performance of the rubber product is improved.

The present device is an integrated automotive wheel for electric vehicles which substantially reduces energy loss due to tire flex and energy loss from a conventional drive train. The wheel includes an axle, a hub, two composite sidewalls, a low pressure inner chamber with shock absorbing hub protector, and at least one outer high pressure pneumatic chamber with tread. The hub can contain an electric hub motor which rotates the wheel, propelling the vehicle. The sidewalls include at least one pressurized chamber which position the outer tread ring and enable the wheel to simulate an energy efficient high pressure pneumatic wheel, experiencing little deformation when under smooth road conditions. When road conditions are rough, the sidewalls can temporarily buckle in response to the increased road forces, simulating a low pressure conventional tire having ample space for deformation, with suspension and shock absorption capability built in. The sidewalls and outer ring chamber can be filled with high pressure closed cell foam to prevent flats.

A tire includes a carcass and a tread member. The carcass has a tread portion, two sidewalls on opposite sides of the tread portion, and two beads on distal ends of the sidewalls. The tread member has a tread protective layer provided on an outer side of the tread portion of the carcass and a skin layer provided on the tread protective layer. In an embodiment the tire further includes a sidewall protective layer and a bead protective layer to protect the sidewalls and the beads of the carcass. The tire may have a good airtight condition and a light weight.

Bicycle tires with at least one reinforcement layer that contains strength supports and that is arranged between carcass and tread rubber and/or between carcass layers below the tread rubber and/or within the tread rubber. For a high resistance to puncturing with low weight, the reinforcement layer contains multifilament threads of more than 30 polyester/polyarylate filaments, and the filaments are spun from molten liquid-crystal polymer.

The invention provides a bicycle tire tube and a manufacture method thereof, namely, a circular horizontal-shaped tire tube is maintained at the ends of the two sides of a strip-shaped tube tire, the tire tube is characterized by comprising a horizontal-shaped tire tube body with openings at two sides, a specified length, and a hollow part forming the internal space; a horizontal-shaped first segment tire tube and second segment tire tube with openings at two sides, a specified length, and a hollow part forming the internal space, and capable of being bonded to any side of the horizontal-shaped tire tube body; rubber cap bonding and ending bonding are used for any side of the first segment tire tube and the second segment tire tube; the horizontal-shaped tire tube bonding is used for bonding connection for the opening parts of the first segment tire tube and the second segment tire tube and the two sides of the tire tube respectively; the horizontal-shaped tire tube formed by respective bonding of the first segment tire tube and the second segment tire tube at the two sides of the tire tube body is also contained. When the tire tube is replaced, replacement and repairing are facilitated without detachment of tire rims, and installation or dismounting of the tire tube on and from a bicycle is facilitated without any tools.

A bicycle tire provides a first sidewall and a second sidewall each including an interior portion and an exterior portion. A rim attaching portion including a slipping reduction portion having an extended rim contact surface is connected to an inner circumference of each of the first sidewall and the second sidewall. A tire tread portion is connected to an outer circumference of the first sidewall and the second sidewall.

A pressure sensing assembly configured to be attached to a bicycle wheel having a tire and a rim mounted to the tire. The pressure sensing assembly includes a housing, a pressure transmitting member, a sensing chamber defined by the housing and the pressure transmitting member, and a sensing element. The pressure transmitting member is coupled the housing and has a central portion offset from the plane in a first direction. The sensing element is offset from the plane in a second direction opposite the first direction. The pressure transmitting member is configured to transmit a pressure in the tire to the sensing element via the sensing chamber.

Elastomeric composition for producing tire components comprising, based upon parts by weight per 100 parts by weight of rubber (phr):

• • (A) 100 phr of a blend of rubber comprising at least 20% by weight of an isoprene polymer;
  • (B) from 0 to 30 phr of silica;
  • (C) from 0 to 50 phr of amorphous carbon black;
  • (D) from 1 to 40 phr of graphene,

wherein the graphene consists of graphene nanoplatelets, wherein at least 90% have a lateral size (x, y) from 50 to 50000 nm and a thickness (z) from 0.34 to 50 nm, wherein the lateral size is always greater than the thickness (x, y>z), and wherein the C/O ratio is ≥100:1.

The invention relates to an automatic unlocking system for a shared bike. The automatic unlocking system comprises an image acquisition device, an image recognition device, a local storage device, an image matching device and an electric control lock device, wherein the image acquisition device is used for acquiring high-definition image data of riding users to obtain and output high-definition user images; the image recognition device is used for segmenting face patterns of the users from the high-definition user images; the local storage device pre-stores pre-shot images of excellent riding users on all levels; the image matching device performs matching on the face patterns of the users one by one with the pre-shot images of the excellent riding users on all levels, and an excellent user presence signal is output once matching succeeds; the electric control lock device is used for unlocking the shared bike automatically for the corresponding riding user when the excellent user presence signal is received. The shared bike unlocking efficiency can be increased with adoption of the automatic unlocking system.

Provided is a bicycle tire for use with a bicycle wheel. The bicycle tire includes a tire body defining a closed loop and being configured to be engagable with the bicycle wheel. The tire body defines an outer periphery and includes an exposed portion extending radially outward from the bicycle wheel when engaged therewith. The exposed portion is externally configured to define a partial, non-circular ellipse in a cross sectional plane perpendicular to the tangent of the outer periphery. The partial ellipse includes a closed end portion at the outer periphery and an open end portion adjacent the bicycle wheel. A plurality of nubs is attached to the tire body, with the nubs being configured to remain attached thereto during the life of the bicycle tire. The nubs are sized and configured to enhance the aerodynamics of the bicycle tire as the tire rotates and translates through a fluid.

The invention discloses a tire installing machine suitable for a bicycle wheel. The tire installing machine comprises a wheel set rotary disk, a pressing and sleeving device and a wheel expanding device, wherein the wheel set rotary disk can rotate around a first vertical axis (1), the pressing and sleeving device can go up or down along the first vertical axis (1), and the wheel expanding device can go up or down along a second vertical axis (3); the wheel expanding device comprises a pressing wheel and an expanding wheel. The tire installing machine disclosed by the invention can be used for automatically install a non-pneumatic tire into a bicycle wheel rim, and is convenient to operate, and the efficiency is high.

A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.

A safety warning tire for a vehicle includes: a tire body and at least one warning unit. The tire body has an annular tread portion adapted to contact a road surface, and two annular sidewalls respectively connected to two opposite sides of the annular tread portion. The annular tread portion has a tread surface. The tread surface has an annular contact surface region adapted to contact the road surface, and two annular non-contact surface regions respectively connected to two opposite sides of the annular contact surface region. The at least one warning unit is disposed on one of the annular non-contact surface regions and outer surfaces of the two annular sidewalls, and includes an annular coating layer that extends annularly along a circumference of the tire body.

The invention is directed to a valve stem system (1) for tubeless wheels. The valve stem system (1) includes a valve stem body (2) with a first end (3) and a second end (4), wherein the second end (4) is located in a tire/rim-volume when mounted at the wheel. A first valve element (5) is arranged at the second end (4) of the valve stem body (2). The first valve element (5) is a self-sealing one-way valve. The invention further concerns a probe (30) for a valve stem system, a method to test the amount of sealant in a wheel and a refilling assembly (80) for a wheel.

An insert for a pneumatic tire including an annular member adapted to contact at least 10% of an interior surface of the pneumatic tire and provide an outward pressure thereagainst.