NL2019114B1 - Tire for bicycle tubeless wheel - Google Patents

Tire for bicycle tubeless wheel Download PDF

Info

Publication number
NL2019114B1
NL2019114B1 NL2019114A NL2019114A NL2019114B1 NL 2019114 B1 NL2019114 B1 NL 2019114B1 NL 2019114 A NL2019114 A NL 2019114A NL 2019114 A NL2019114 A NL 2019114A NL 2019114 B1 NL2019114 B1 NL 2019114B1
Authority
NL
Netherlands
Prior art keywords
rim
tire
outside
side wall
lip
Prior art date
Application number
NL2019114A
Other languages
Dutch (nl)
Inventor
Jan Lo Tsai
Original Assignee
Cheng Shin Rubber Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cheng Shin Rubber Ind Co Ltd filed Critical Cheng Shin Rubber Ind Co Ltd
Priority to NL2019114A priority Critical patent/NL2019114B1/en
Application granted granted Critical
Publication of NL2019114B1 publication Critical patent/NL2019114B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims
    • B60C15/024—Bead contour, e.g. lips, grooves, or ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/02—Seating or securing beads on rims
    • B60C15/0209—Supplementary means for securing the bead
    • B60C15/022—Supplementary means for securing the bead the bead being secured by turned-in rim flanges, e.g. rim of the clincher type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/12—Tyres specially adapted for particular applications for bicycles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

A bicycle tubeless tire includes a tread and two sidewalls are formed on two sides of the tread. Each sidewall has a lip formed on the distal edge thereof. An installation unit is integrally formed with each lip. Each lip includes an inside, an underside and an outside. The underside and the outside of each lip are engaged with an engaging portion at the inner bottom of the rim when the tire is installed to the rim. The lips do not shift by the engaging portions of the rim. Each of the underside and the outside is a flat side such that the contact area between the lips and the rim is increased to have better air-tight features. The outer face of each lip is a flat face to be installed to the rim without flanges. The deformation of the sidewalls of the tire, and the wind resistance are reduced.

Description

TIRE FOR BICYCLE TUBELESS WHEEL
BACKGROUND OF THE INVENTION 1. Fields of the invention
The present invention relates to a tire for bicycles, and more particularly, to a tire used for bicycle tubeless wheels and the tire has increased volume and is durable. 2. Descriptions of Related Art
The conventional bicycle wheels generally comprise a rim and a tire is connected to the outer periphery of the rim. The tires of the bicycle wheels can be a tube or a clincher, wherein the tube has O-shaped cross section, and the clincher includes a U-shaped cross section which includes two sidewalls and a lip is formed on each of the sidewalls. The clincher can be catalogued to be tube type or tubeless type.
The bicycle wheel rims includes a circular part with a hub located at the center of the circular part, and multiple spokes are connected between the inner periphery of the circular part and the hub. The rim cooperated with a clincher includes two sidewalls extending from two sides along the outer periphery thereof such that the lips of the tire are engaged with the two sidewalls. There is no tube located between the clincher and the rim so that the lips are required to be air-tightly connected to the sidewalls of the rim.
For the tubeless wheel, air is introduced into the space between the tire and the rim, so that the connection between the rim and the tire is high so as to avoid leakage from any possible gap between the tire and the rim. That is to say, the engagement between the lips of the tire and the rim has to be air-tight.
Generally, the convention rim includes a flange extending from each of the sidewalls of the rim so as to be engaged with the lips of the tire. Nevertheless, the rim with the flanges requires higher manufacturing cost, especially when the rim is made of carbon-fibers. Besides, the flanges cause concentration of stress when braking. Furthermore, in order to be engaged with the flanges, the sidewalls of the tire have to be deformed severely and the deformation causes wind resistance when in use.
The present invention intends to provide a tire for bicycle tubeless wheel, and the tire eliminates the shortcomings mentioned above.
SUMMARY OF THE INVENTION
The present invention relates to a bicycle tubeless tire and comprises a tire having a U-shaped cross section and a tread. Two sidewalls are formed on two sides of the tread. Each sidewall has a lip formed on the distal edge thereof. An installation unit is integrally formed with each lip. Each lip has an inside, an underside and an outside. Each of the underside and the outside is a flat side. The outside is perpendicular to the axis of the rim to which the tire is installed thereto. An outer face is formed between the outside and the sidewall. The sidewall, the outside and the outer face are not located on the same plane. A first engaging ridge protrudes from the connection portion between the sidewall and the outer face. A second engaging ridge is formed at the connection portion between the inside and the underside. The first engaging ridge is engaged with the top surface of the rim. The second engaging ridge is engaged with an engaging portion on the inner bottom of the rim.
The primary object of the present invention is to provide a tire which is suitable for being installed to a bicycle wheel rim that does not have a flange extending from its sidewalls.
Another object of the present invention is to provide a tire, wherein the underside and the outside of each lip of the tire are engaged with an engaging portion at the inner bottom of the rim when the tire is installed to the rim, such that the lips of the tire dot not shift.
Yet another object of the present invention is to provide a tire wherein the underside and the outside of each lip are a flat face. The contact area between the lips and the rim is increased to have better air-tight features. A further object of the present invention is to provide a tire wherein the outer face of each lip is a flat face. The tire is suitable for being installed to a rim that does not have any flange extending from the sidewalls thereof. The deformation of the sidewalls of the lire is reduced, and the wind resistance is reduced.
The present invention will become more apparent from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows the tire of the present invention;
Fig. 2 shows the cross section of the tire of the present invention;
Fig. 3 is a cross section of the tire of the present invention;
Fig. 4 shows that the tire of the present invention is installed to a rim;
Figs. 5 to 7 show steps of the installation of the tire of the present invention to the rim, and
Fig. 8 shows that the tire of the present invention is installed to another rim.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 to 3, the tire 10 of the present invention comprises a U-shaped cross section and has a tread 11, and two sidewalls 12 are formed on two sides of the tread 11. Each sidewall 12 has a lip 13 formed on the distal edge thereof.
An installation unit 20 is integrally formed with each lip 13. Each lip 13 comprises an inside 21, an underside 22 and an outside 23. When the tire 10 is installed to a rim 50, the outsides 23 are in vertical direction. In other words, the outsides 23 are perpendicular to the axis of the rim 50 when the tire 10 is installed to the rim 50. Each of the underside 22 and the outside 23 is a flat side. An outer face 24 which is a flat face and formed between the outside 23 and the sidewall 12. The sidewall 12, the outside 23 and the outer face 24 are not located on the same plane. A first engaging ridge 25 integrally protrudes from the connection portion between the sidewall 12 and the outer face 24. A second engaging ridge 26 is formed at the connection portion between the inside 21 and the underside 22. A first edge 27 is formed between the underside 22 and the outside 23. The rim 50 includes two sidewalls 53 and each sidewall has a top face 51. Two seats 54 are formed in the inner bottom of the rim 50 and a bridge is connected between the two seats 54 as disclosed Figs. 4 to 7. Two engaging portions 52 protrude from the two seats 54 respectively. When installing the tire 10 to the rim 50, the first engaging ridges 25 are engaged with the top faces 51 of the rim 50. The undersides 22 of the lips 13 of the tire 10 are matched with the seats 54 of the rim 50, and the second engaging ridges 26 of the tire 10 are engaged with die engaging portions 52, such that the lips 13 do not shift.
The tire 10 of the present invention is suitable for being installed to the rim 50 that does not have any flange extending from the sidewalls thereof.
Specifically, as shown in Fig. 3, an angle a of 0 to 45 degrees is defined between the underside 22 and a horizontal plane. The underside 222 of each lip 13 has a width β of 2 to 8 mm. The outside 23 is formed with the outer surface of the sidewall 12, and a thickness difference δ of 0 to 1 mm is formed between the outside 23 and the outer surface of the sidewall 12. The sidewall 23 is thicker than that of the sidewall 12. The sidewall 23 has a height γ of 1 to 6 mm. A rounded corner ω of 0.3 to 1.5 mm is defined at the connection portion between the underside 22 and the outside 23. An obtuse angle p of 135 to 180 degrees is defined between the outside 23 and the outer face 24. A vertical height μ of 6 to 9 nun is formed between the first edge 27 and the first engaging ridge 25.
As shown in Figs. 5 to 7, when the tire 10 is installed to the rim 50 as shown in phantom lines, the rim 50 includes two sidewalls 53 and the inside of each sidewall of the rim 50 is a flat inside. There is not any flange extending from the sidewalls 53 of the rim 50. Each sidewall 53 has a top face 51. Two seats 54 are formed in the inner bottom of the rim 50 and a bridge is connected between the two seats 54. Two engaging portions 52 protrude from the two seats 54 respectively.
One sidewall 12 of the tire 10 is positioned inside of rim 50, and the other sidewall 12 of the tire 10 is deformed by applying a force thereto and positioned inside of the rim 50 as shown in Fig. 6. The tire 10 is inflated so that the two sidewalls 12 of the tire 10 expand and move toward the sidewalls 53 of the rim 50. As shown in Fig. 7, when the tire 10 is inflated completely, the tire 10 is secured to the inside of the rim 50. The second engaging ridges 26 contact the engaging portions 52. The first engaging ridges 25 are engaged with the top faces 51 of the sidewalls 53 of the rim 50. The underside 22 and the outside 23 of each lip 13 of the tire 10 are fully matched with the sidewall 53 and the seat 54. Because the outsides 23 each are a flat side so that when the tire 10 is inflated, the outsides 23 are matched with the sidewalls 53 at a large contact area. The undersides 22 of each lip 13 is a flat face so that the undersides 22 are matched with the seats 54 when the tire 10 is inflated.
The advantages of the present invention includes the following advantages which are that the sidewalls 53 of the rim 50 each have flat inside and outside, and there is no flange extending from the sidewalls 53 of the rim 50, the structure of the rim 50 becomes simple and easily to be manufactured.
When the tire 10 is inflated, the first engaging ridges 25 are engaged with the top faces 51 of the sidewalls 53 of the rim 50. The second engaging ridges 26 of the tire 10 are engaged with the engaging portions 52 of the rim 50, so that the tire 10 is securely installed to the rim 50.
When the tire 10 is installed to the rim 50 and inflated completely, the underside 22 and the outside 23 of each lip 13 of the tire 10 are fully matched with the sidewall 53 and the seat 54. The contact area between the underside 22 and the outside 23 of the tire 10 and the sidewall 53 and the seat 54 of the rim is sufficient so as to have better air-tight features.
The outer face 24 of each lip 13 is a flat face and which is properly bent when the tire 10 is inflated because the rim 50 does not have any flange extending therefrom. The wind resistance of the wheel is reduced.
Because the sidewalls 53 of the rim 50 have a flat inside and outside, there is no flange extending from the sidewalls 53, so that the installation of the tire 10 to the rim 50 is easily and quick.
When the tire 10 is broken, because the sidewalls 53 of the rim 50 do not have any flange, so that the tire 10 can be easily removed from the rim 50. The lips 13 of the tire 10 and the sidewalls 53 of the rim 50 are not easily damaged, so that the life of the tire 10 and the rim 50 is prolonged.
As shown in Fig. 8, the angle a between the seats 54 and the sidewalls 53 is 90 degrees. The underside 22 and the outside 23 of the tire 10 can still matched with the sidewall 53 and the seat 54 of the rim 50.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims (9)

1. Binnenbandloze fietsband, omvattende: een band met een U-vormige dwarsdoorsnede en een met een loopvlak en twee zijwanden gevormd aan twee zijden van het loopvlak, waarbij elke zijwand een lip heeft die gevormd is op een distale rand daarvan; en een installatie-eenheid die integraal gevormd is met elke lip, waarbij elke lip een binnenzijde, een onderzijde en een buitenzijde heeft, waarbij elk van de onderzijde en de buitenzijde een vlakke zijde is, waarbij de buitenzijden loodrecht staan op een as van een velg wanneer de band aangepast is om geïnstalleerd te worden op de velg, een buitenoppervlak gevormd tussen de buitenzijde en de zijwand, waarbij de zijwand, de buitenzijde en het buitenoppervlak niet gelokaliseerd zijn in hetzelfde vlak, waarbij een eerste aangrijprichel uitsteekt vanaf een verbindingsdeel tussen de zijwand en hel buitenste oppervlak, een tweede aangrijprichel gevormd is op een verbindingspunt tussen de binnenzijde en de onderzijde, waarbij de eerste aangrijprichel aangepast is om aangegrepen te worden met een bovenoppervlak van de velg, waarbij de tweede aangrijprichel aangepast is om aangegrepen te worden met een aangrijpdeel op een binnenste bodem van de velg.An inner tire-less bicycle tire, comprising: a tire with a U-shaped cross-section and one with a tread and two side walls formed on two sides of the tread, each side wall having a lip formed on a distal edge thereof; and an installation unit integrally formed with each lip, each lip having an inner side, a bottom side and an outside side, each of the bottom side and the outside being a flat side, the outer sides being perpendicular to an axis of a rim when the tire is adapted to be installed on the rim, an outer surface formed between the outer side and the side wall, the side wall, the outer side and the outer surface not being located in the same plane, a first engagement ledge protruding from a connecting part between the side wall and on the outer surface, a second engagement ridge is formed at a junction between the inside and the bottom, wherein the first engagement ridge is adapted to be engaged with an upper surface of the rim, the second engagement ridge adapted to be engaged with an engagement part on an inner bottom of the rim. 2. Binnenbandloze fietsband volgens conclusie 1, waarin een hoek van 0 tot 45 graden gedefinieerd is tussen de onderzijde en een horizontaal vlak.Inner tube-less bicycle tire according to claim 1, wherein an angle of 0 to 45 degrees is defined between the bottom and a horizontal surface. 3. Binnenbandloze fietsband volgens conclusie 1, waarin de onderzijde een breedte van 2 mm tot 8 mm heeft.Inner tube-less bicycle tire according to claim 1, wherein the underside has a width of 2 mm to 8 mm. 4. Binnenbandloze fietsband volgens conclusie 1, waarin de buitenzijde gevormd is met een buitenoppervlak van de zijwand, waarin een dikteverschil van 0 tot 1 mm gevormd is tussen de buitenzijde en het buitenste oppervlak van de zijwand.The inner tube-less bicycle tire according to claim 1, wherein the outer side is formed with an outer surface of the side wall, wherein a thickness difference of 0 to 1 mm is formed between the outer side and the outer surface of the side wall. 5. Binnenbandloze fietsband volgens conclusie 1, waarin de buitenzijde gevormd is met een buitenoppervlak van de zijwand, een dikteverschil gevormd is tussen de buitenzijde en het buitenoppervlak van de zijwand, waarbij de zijwand dikker is dan de zijwand, waarbij de zijwand een hoogte heeft van 1 tot 6 mm.The inner tube-less bicycle tire according to claim 1, wherein the outer side is formed with an outer surface of the side wall, a thickness difference is formed between the outer side and the outer surface of the side wall, wherein the side wall is thicker than the side wall, the side wall having a height of 1 to 6 mm. 6. Binnenbandloze fietsband volgens conclusie 1, waarin een afgeronde hoek van 0,3 tot 1,5 mm gedefinieerd is in een verbindingspunt tussen de onderzijde en de buitenzijde.The inner tube-less bicycle tire according to claim 1, wherein a rounded corner of 0.3 to 1.5 mm is defined in a connection point between the bottom and the outside. 7. Binnenbandloze fietsband volgens conclusie 1, waarin een stompe hoek van 135 lot 180 graden gedefinieerd is tussen de buitenzijde en een buitenoppervlak.The inner tube-less bicycle tire according to claim 1, wherein a blunt angle of 135 to 180 degrees is defined between the outside and an outer surface. 8. B innenbandloze fietsband volgens conclusie 1, waarin de eerste rand gevormd is tussen de onderzijde en de buitenzijde, een verticale hoogte van 6 tot 9 mm gevormd is tussen de eerste rand en de eerste aangrijprichel.The inner tire-free bicycle tire according to claim 1, wherein the first edge is formed between the bottom and the outside, a vertical height of 6 to 9 mm is formed between the first edge and the first engagement ridge. 9. Binnenbandloze fietsband volgens conclusie 8, waarin het buitenoppervlak een vlak oppervlak is.The inner tube-less bicycle tire according to claim 8, wherein the outer surface is a flat surface.
NL2019114A 2017-06-22 2017-06-22 Tire for bicycle tubeless wheel NL2019114B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2019114A NL2019114B1 (en) 2017-06-22 2017-06-22 Tire for bicycle tubeless wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2019114A NL2019114B1 (en) 2017-06-22 2017-06-22 Tire for bicycle tubeless wheel

Publications (1)

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NL2019114B1 true NL2019114B1 (en) 2019-01-07

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050210675A1 (en) * 2004-03-26 2005-09-29 Price Chad N Sealed tubeless tire bicycle wheel
US20060000537A1 (en) * 2004-07-02 2006-01-05 Ying-Ming Yang Tire with lip edge structure
US20100230025A1 (en) * 2009-03-11 2010-09-16 Shuji Kawai Bicycle tire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050210675A1 (en) * 2004-03-26 2005-09-29 Price Chad N Sealed tubeless tire bicycle wheel
US20060000537A1 (en) * 2004-07-02 2006-01-05 Ying-Ming Yang Tire with lip edge structure
US20100230025A1 (en) * 2009-03-11 2010-09-16 Shuji Kawai Bicycle tire

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