87results about "Bicycle tyres" patented technology

A two-wheeled vehicle pneumatic tire having a tread, a tire carcass, tire sidewalls, and two bead regions with a bead protective strip. The tire carcass is formed from a first carcass inlay and a second carcass inlay. The second carcass inlay is arranged radially inwardly of the first carcass inlay, and extends from a crown region (17) of the two-wheeled vehicle pneumatic tire and terminates at a second carcass inlay end under the bead protective strip. The two-wheeled vehicle pneumatic tire provides improved puncture protection whilst maintaining good rolling resistance. This is achieved in that the first carcass inlay is guided with a first carcass inlay turn-up over the particular tire sidewall as far as under the tread to a first carcass inlay end, and terminates there at the first carcass inlay end.

Shape memory alloy elements (“SMAs”) are bonded, encased, or encapsulated with one or more polymers to form an integrated component with unique elastic, pseudoelastic, and load-bearing properties.

A tubeless tire insert comprising: an annular body having shock absorbing characteristics; a positioning system configured to vary a mean inner diameter of the insert, wherein the insert has a mean inner diameter X when the tire is being installed on the rim; and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

The present invention provides a pneumatic valve system for easily attaching and sealing a valve coupler to a valve stem for filling an inflatable vessel such as a tire, tube, mattress, etc. The valve system may comprise the following major components: a valve stem, a valve cap with a pin passage and attachment structure for attaching to a valve coupler, a sealing member, a biasing member, the valve coupler comprising a coupler housing, a pin seat, an inflation pin, and a collar with ball bearings complementary to the attachment structure of the valve cap, and an elastic sleeve for providing inward force against the ball bearings. The valve system may allow for easy, secure, and sealed engagement between the valve coupler and valve stem by simply pushing down on the valve coupler, and disengagement by pulling up on the valve coupler with as little as two fingers.

The invention relates to a bicycle rim (4) having an annular rim profile (9) for receiving a tyre casing (8) on the outside, wherein the rim profile (9), together with the tyre casing (8), forms an annular cavity (80) for providing an overpressure region (10), which is provided for filling with a gas (G), and wherein a measuring device (12), provided with a housing (70) and having at least one pressure measuring sensor (13) for determining the pressure (p) in the overpressure region (10), is arranged on the rim profile (9). According to the invention, the housing (70) lies flat with a contact surface (73) adapted to the curvature of the rim profile (9) against the outer contour of the rim profile (9) facing the overpressure region (10).

The invention relates to a tire (1), in particular for bicycles, with a carcass (10) extending over sidewalls (14) and a tread strip (12) applied radially to the outside of the carcass (10) and extending in a circumferential direction (U), wherein at least one circumferential puncture protection strip (13) based on a surface structure is arranged between the tread strip (12) and the carcass (10), wherein the surface structure for the puncture protection strip (13) is a fabric consisting of at least one layer of threads (130) running parallel to each other, wherein the threads (130) form an angle between 0 and 90° with respect to the circumferential direction (U).

The present invention relates to a bicycle tyre (1) comprising a tyre carcass (10) defining a tyre interior space (20) for the inflation fluid and having opposite sidewalls (11, 12) and central wall (13) connecting the sidewalls (11, 12), the sidewalls (11, 12) defining a tyre base (40) configured for fastening to a bicycle rim; a tread (60) externally covering at least the central wall (13) of the tyre carcass (10); one or more ripstop fabrics (70) applied in the tyre carcass (10).

Bicycle rim (4) with - an annular rim profile (9) for receiving a tyre casing (8) on the outside, - wherein the rim profile (9) together with the tyre casing (8) forms an annular cavity (80) for providing an overpressure area (10) which is intended for filling with a gas (G), and - wherein a measuring device (12) provided with a housing (70) and having at least one pressure measuring sensor (13) for determining the pressure (p) in the overpressure region (10) is arranged on the rim profile (9), characterized in that the housing (70) rests flatly with a support surface (73) adapted to the curvature of the rim profile (9) on the outer contour of the rim profile (9) facing the overpressure region (10).

The invention relates to the technical field of bicycle tires, in particular to a puncture-proof and explosion-proof bicycle tire. The invention provides a puncture-proof and explosion-proof bicycle tire. The puncture-proof and explosion-proof bicycle tire is sequentially provided with a tire body cord fabric layer, a steel wire cord fabric layer and tread rubber from inside to outside. According to the puncture-proof and explosion-proof bicycle tire, the puncture-proof and explosion-proof performance can be remarkably improved while the riding experience is considered.

Vehicle pneumatic tire (1) for a light vehicle, preferably a bicycle, with a tire carcass comprising exactly a first carcass layer (6) in the inner part of the tire at the zenith and a second carcass layer (7), each of which terminates in a carcass high point (61,71) under the tread. The goal is to create a tire that offers lower rolling resistance and improved adaptation to the surface, while simultaneously maintaining high puncture protection and advantageous cornering behavior under high lateral forces. This is achieved by the fact that the first two carcass uplifts (61) on the tire half on which they are guided over the respective sidewall (3) end in the axially outer 20% of the axial extent (8) of the tread (2), and that the second carcass uplifts (71) coming from the sidewall extend within the axial extent (8) of the tread beyond the first carcass uplift (61) which is guided over the sidewall on the same tire half as the respective second carcass uplift (71).

An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and / or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

The invention relates to an inflation valve for use with a tubeless tire, the inflation valve comprising a ball valve. The ball valve optionally includes a housing in which a ball is disposed, the ball forming a through-hole, the ball being rotatable between an open position in which air and / or sealant are permitted to flow through the through-hole and a closed position in which air and / or sealant are permitted to flow through the through-hole, the ball being rotatable between an open position in which air and / or sealant are permitted to flow through the through-hole and a closed position in which air and / or sealant are permitted to flow through the through-hole. Air and / or sealant are substantially prevented from flowing through the through-hole.

The invention relates to a tyre (1) of an electrically assisted bicycle or wheelchair, said tyre comprising a crown reinforcement radially inside a tread, said tread being connected, by means of two sidewalls (3), to two beads. The tyre comprises, on at least one of the sidewalls (3) and projecting from the sidewall, a strip (4) of a rubber compound with an axial thickness (ep) of at least 1 mm and not more than 4 mm, at least 10 mm and not more than 30 mm. The rubber compound has a Shore A hardness of between 55 and 75, and a glass transition temperature of between -15°C and 0°C. Said compound forms a smooth outer surface (5) intended to come into contact with a drive roller having a plurality of indenters.

The invention relates to a two-wheeled vehicle pneumatic tire (1), preferably bicycle tire, particularly preferably racing bike tire (1), having a tread (2), a tire carcass, tire side walls (3) and two bead regions (4), each with a tire bead with a core (5), wherein the tire carcass comprises two carcass inlays (6,6′) wherein the two carcass inlays (6, 6′) extend from a zenith region (17) of the two-wheeled vehicle pneumatic tire (1) over the tire side walls (3) as far as the two bead regions (4) and are looped there around the respective core (5) from axially on the inside axially outward and end with carcass inlay ends (7,7′) and wherein the two bead regions (4) each have a bead protective strip (8) arranged on the carcass from the outside as protection against chafing.The problem addressed is that of improving the rolling resistance.The problem is solved in that the carcass inlay ends (7′) of the inner carcass inlay (6′) are covered from the outside by the respective bead protective strip (8), wherein the inner carcass inlay (6′) is formed by that carcass inlay of the two carcass inlays (6, 6′) which is the radially inner carcass inlay in the zenith region (17). The invention furthermore relates to a two-wheeled vehicle having a tire of said type.

A system and method for a tubeless tire insert. The present invention includes an annular body having shock absorbing characteristics. A positioning system configured to vary a mean inner diameter of the insert is also included. The insert has a mean inner diameter X when the tire is being installed on the rim, and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

A bicycle for children, in particular a balance bicycle for children, comprising: - a frame (1), - two wheel assemblies (3, 4) attached centrally to the frame (1) one behind the other, - and a steering system (5) for steering the front wheel assembly (3), - wherein at least the rear wheel assembly (4) has a bulge-like rounded tire contour (8), - wherein the tire contour (8) has a central straight-line motion region (10) and also has, on both sides of said straight-line motion region (10), cornering regions (11) that curve outward toward the tire shoulders, allowing cornering maneuvers to be performed at a lateral tilt, - and wherein the tire contour (8) is designed such that the radius of curvature (12) of the average curvature of the tire contour (8) is greater than the average normal distance (13) from the center of gravity axis (7) of the bicycle to the tire contour (8) and the bicycle rights itself unaided while stationary, in particular in accordance with the principle used for a round-bottomed doll.

The invention relates to a tyre (100) for bicycle wheels, comprising:-a carcass structure (2) comprising at least one carcass ply (3) having ends (3a) rolled up around respective bead cores (4a, 4b) to form respective opposite beads (5a, 5b),-a tread band (7) arranged in a radially outer position relative to the carcass structure (2), and-a layer (8) of vulcanized elastomeric material superimposed or interposed in said carcass structure (2) in a radially inner or outer position, said layer (8) of vulcanized elastomeric material extending axially from at least one bead (5a) to an opposite bead (5b), characterized in that the layer (8) of vulcanized elastomeric material is arranged in the carcass structure (2). The layer (8) of vulcanized elastomeric material is produced by vulcanization of a vulcanizable elastomer compound comprising micron-sized fibrillated polymer fibers.

The invention relates to a tyre (10) having a tread (15) comprising a main composite material (30) having an integrally molded construction and comprising a thermoplastic polymer matrix and a fabric reinforcement component. The invention also relates to a method for manufacturing such a tyre, said method comprising hot-pressing a multi-layer assembly comprising a hot-meltable fabric part and a non-hot-meltable fabric part.

Pressure measuring device (32) for a bicycle, wherein the pressure measuring device (32) comprises: a housing (42; 242) which includes a removable power source section (44; 244); a pressure chamber (50; 250), wherein the pressure chamber (50; 250) comprises an inlet, an outlet and a measuring element opening (60), wherein the pressure chamber (50; 250) is designed to allow fluid to pass through it between the inlet and the outlet; a measuring element (58; 258) which is designed to measure a pressure in a measuring chamber (63), wherein the measuring chamber (63) is in fluid communication with the pressure chamber (50; 250) through the measuring element opening (60); an energy source (106; 206) which is arranged on the removable energy source section (44; 244) in the housing (42; 242), wherein the energy source (106; 206) is configured to provide energy to the measuring element (58; 258); and a valve device (205) which is arranged in the inlet, wherein the pressure measuring device (32) is arranged at least partially between a spoke bed (34) and a tire arrangement bed (36) of a rim (20).

A pneumatic valve is provided. The valve includes a unitary body having a passage therethrough and a circumferential groove about a proximal end of the body, the passage having a first portion of a constant diameter from a proximal end, and a second portion extending from the first portion to a distal end of the body. A seal is disposed in the second portion of the passage. A plug is disposed through the passage and selectively engageable with the seal. A spring us disposed in the passage and operably coupled to the plug, the spring biasing the plug into a first position. When the plug is in the first position a head of the plug is biased against the seal to prevent fluid communication through the passage, when the plug is in a second position, the plug is disengaged from the seal to allow fluid communication therethrough.

Tire whose tread is formed entirely or partially of a unit-molded composite material. The present invention relates to a tire (10) comprising a tread (15), said tread comprising a main composite material (30) which is of unit-molded construction and which comprises a thermoplastic polymer matrix and a textile reinforcement assembly. The present invention also relates to a method for manufacturing such a tire comprising the thermocompression of a multilayer assembly including a heat-fusible textile portion and a non-heat-fusible textile portion. Figure for the abstract: Fig. 1.

The invention relates to a bicycle valve with a valve stem, a check valve arranged in the valve stem, and a valve nut, wherein the valve stem comprises a first section with an air outlet and an external thread, and a second section adjacent to the first section with an air inlet and an outer diameter reduced compared to the first section; the valve stem has or carries a counter element at the air outlet with a counter outer diameter larger than that of the first section; the valve nut has a threaded section with an internal thread screwed onto the external thread of the first section of the valve stem, wherein the valve nut is rotatable on the external thread between a first clamping position relatively far from the air inlet and a second adapter position relatively close to the air inlet by tightening and loosening it;The valve nut has a clamping end face adjacent to the threaded section, facing the air outlet, the distance of which to the locking element can be reduced by moving the valve nut from the second adapter position to the first clamping position in order to clamp a bicycle rim between the clamping end face and the locking element in the first clamping position of the valve nut. The bicycle valve according to the invention is characterized in that the valve nut comprises an adapter section directly or indirectly adjoining the threaded section, which has a radially outer surface for attaching a pump head for car valves in the second adapter position of the valve nut.

The present disclosure relates to the technical field of tires, and in particular to a non-pneumatic vacuum tire. The non-pneumatic vacuum tire includes a tread layer, a carcass ply layer and a puncture-resistant airtight layer. The tread layer is provided on the carcass ply layer and located at a crown; a pattern groove is formed in a surface of the tread layer; the puncture-resistant airtight layer is fixedly provided between the tread layer and the carcass ply layer or fixedly provided under the carcass ply layer; the puncture-resistant airtight layer includes one or more layers of canvas; a warp and a weft of the canvas each are formed by a plurality of filaments; and the canvas forms the puncture-resistant airtight layer by rubber impregnation and rubber coating; the puncture-resistant airtight layer at least covers a clinch to a shoulder; and a lower end of the puncture-resistant airtight layer extends to the clinch and forms a turn-up structure. Through the puncture-resistant airtight layer composed of the rubber impregnated and coated canvas, the vacuum tire achieves better puncture resistance and airtightness.

The invention relates to a pneumatic tire (1) for a light vehicle, preferably a bicycle tire, with a tire carcass, wherein the tire carcass has exactly one innermost first carcass layer (6) and a second carcass layer (7), each of which is guided in a carcass rise (61, 71) under the tread (2) and terminates within an axial extension (8) of the tread (2) in carcass layer ends (62, 72). The task is to provide an air-filled tire that offers improved adaptation to the terrain while maintaining high durability at the zenith and advantageous cornering behavior under high lateral forces, e.g. in downhill riding. This is achieved by designing one or both carcass layers as asymmetric carcass layers (6,7), wherein for the asymmetric carcass layer the two carcass high points (61,71) of the respective asymmetric carcass layer (6,7) end in the same axial half (11,12) of the tire.

The present invention relates to a tyre (100) for bicycle wheels comprising: - a carcass structure (2) comprising at least one carcass ply (3) having ends (3a) turned up around respective bead cores (4a, 4b) to form respective opposite beads (5a, 5b), - a tread band (7) arranged in a radially outside position with respect to said carcass structure (2), and - a layer of vulcanised elastomeric material (8) superimposed, in a radially inside or outside position, to the carcass structure (2), or interposed in the carcass structure (2), said layer of vulcanised elastomeric material (8) axially extending from at least one bead (5a) to the opposite bead (5b), characterised in that said layer of vulcanised elastomeric material (8) is made by vulcanisation of a vulcanisable elastomeric compound comprising micrometre-sized fibrillated polymer fibres.

This invention relates to an inflation valve for use with a tubeless tyre, the inflation valve comprising a ball valve. The ball valve optionally comprises a housing within which is provided a ball, the ball being formed with a through-hole, the ball being rotatable between an open position in which air and / or sealant is allowed to flow through the through-hole, and a closed position in which air and / or sealant is substantially prevented from flowing through the through-hole.

The present invention relates to a foldable tyre (1) comprising: a tread (120); two bead wires (13); a carcass reinforcement (15) extending radially inside the tread (120), the carcass reinforcement (15) forming two sidewalls (122) and comprising at least one carcass layer (151) winding around the two bead wires (13); and an inner band (14) arranged radially inside the tread (120), wherein the inner band (14) comprises at least one mark (2; 2A, 2B). The invention also relates to a method for manufacturing such a tyre (1), an assembly comprising such a tyre (1), and a link maintaining the tyre (1) in the folded or rolled-up position, as well as a method for manufacturing such an assembly.

The invention relates to a tire (1), preferably a bicycle tire, particularly preferably a racing tire (1), having a tread (2), a tire carcass, tire sidewalls (3) and two bead regions (4), each having a bead with a core (5), wherein the tire carcass comprises two carcass plies (6, 6'), wherein the two carcass plies (6, 6') extend from an apex region (17) of the pneumatic tire (1) for two-wheeled vehicles over the tire sidewalls (3) up to the two bead regions (4) and there surround the respective core (5) from the inside axially to the outside axially and end in a carcass ply end (7, 7'), and wherein the two bead regions (4) each have a bead protector strip (8) arranged from the outside on the carcass for use as an anti-abrasion protection. The problem to be solved is to improve the rolling resistance. This is achieved in that the carcass ply end (7') of the inner carcass ply (6') is covered from the outside by the respective bead protector strip (8), wherein the inner carcass ply (6') is formed by the radially inner carcass ply of the two carcass plies (6, 6') in the apex region (17). The invention also relates to a two-wheeled vehicle having such a tire.

A tubeless tire and a valve for a tubeless bicycle tire having a rim is provided. The valve includes a stem body having a first and second end with a first opening. A rim gasket is coupled to the first end. A cap is coupled to the second end, the cap having a pin passage therethough, the cap having a circumferential concavity on an outer diameter. A valve seat is disposed between the cap and the second end, the valve seat having a second hole that fluidly couples the first opening and the pin passage. A spring is disposed within the first hole. A seal is movably disposed within the first opening and biased against the valve seat by the spring, the seal being movable between a first position and a second position.