Bicycle wheel

Information

  • Patent Grant
  • 6536849
  • Patent Number
    6,536,849
  • Date Filed
    Monday, November 20, 2000
    24 years ago
  • Date Issued
    Tuesday, March 25, 2003
    21 years ago
Abstract
A bicycle wheel basically has a hub, a plurality of spokes extending outwardly from the hub and an annular rim coupled to the outer ends of the spokes for supporting a tire. The annular rim has a spoke attachment portion with a plurality of spoke openings for receiving the outer ends of the spokes therein. The spoke openings of the annular rim have reinforcement members located between the spokes and annular rim. The outer ends of the spokes have bent sections located within the spoke holes of the reinforcement members or washers and head section that engage the inner surface of the reinforcement members. The rim is free of access apertures or holes in the outer annular portion adjacent a majority of the spoke holes. The reinforcement member has a transverse dimension allowing the outer end of the spoke and the reinforcement member to pass through the openings in a first orientation and be retained in the openings in a second orientation.
Description




BACKGROUND THE INVENTION




1. Field of the Invention




This invention generally relates to a bicycle wheel with a hub adapted to be mounted to a bicycle frame, an annular rim and a plurality of spokes extending inwardly from the rim to the hub. More specifically, the present invention relates to the connection between the spokes and the rim of the bicycle wheel.




2. Background Information




Bicycling is becoming an increasingly more popular form of recreation as well as a means of transportation. Moreover, bicycling has also become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. One particular component of bicycles, which has been extensively redesigned over the past years, is the bicycle wheel. Bicycle wheels are constantly being redesigned to be lightweight and more aerodynamic in design as well as to be simple to manufacture and assemble.




There are many different types of bicycle wheels, which are currently available on the market. The most basic bicycle wheels have a hub portion, a plurality of spokes and an annular rim. The hub portion is attached to a part of the frame of the bicycle for relative rotation. The inner ends of the spokes are coupled to the hub and extend outwardly from the hub. The annular rim is coupled to the outer ends of the spokes and has an outer portion for supporting a pneumatic tire thereon. Typically, the spokes of the bicycle wheel are thin metal wire spokes. The ends of the hub are provided with a flange that is used to couple the spokes to the hub. In particular, holes are provided in the hub flanges. The wire spokes are usually bent on their inner end and provided with a flange that is formed in the shape of a nail head. The inner end is supported in one of the holes in one of the hub flanges. The outer ends of the spokes typically are provided with threads for engaging spoke nipples, which secure the outer ends of the wire spokes to the rim. In particular, the spoke nipples have flanges, which engage the interior surface of the rim. Alternatively, the spokes may be reversed, with the outer end having the nail head and the inner end having the threads for engaging spoke nipples, which secure the inner ends of the wire spokes to the hub.




With a spoke constructed in this manner, the nipples are installed in nipple holes formed in either the rim or the hub. The spokes are inserted through holes in either the hub flange or the rim with the flanges of the spokes engaging the areas surrounding the holes in either the hub flange or the rim. The male threads on the ends of the spokes are threaded into the female threads of the spoke nipples installed in the openings of the hub flange or the rim. It is desirable in the bicycle industry to have as few spokes as possible. One problem with conventional spokes is the concentrated stress applied to the rim. Moreover, if fewer spokes are used, the stress on the rim becomes increasingly larger. Typically, conventional spokes are attached to either the inner edge or the lateral side portions of the rim. Thus, the amount of force that can be applied to the rim by the spokes depends mainly upon the thickness of the inner edge of the rim or the lateral side portions of a rim. In order to accommodate the stress from the spokes, the inner edge of the rim can be made thicker. However, making the rim thicker increases the weight of the rim. Moreover, conventional spokes are not very aerodynamic in design.




In recent years, wheels have been designed with reinforcing members arranged on the outer ends of the spokes to aid in disbursing the stress concentrated on portions of the rim. Such a wheel is disclosed in Shimano's U.S. Pat. No. 6,126,243. This wheel (i.e., rim, and spoke combination) is very strong, lightweight, and relatively simple and inexpensive to manufacture. However, this design requires drilling a plurality of access holes in the outer peripheral surface of the rim. The spokes and reinforcement members are inserted through these holes into spoke openings of the rim during assembly. These holes then have to be sealed and a tubed tire installed. If a spoke needs to be replaced, the tire, tube and seal have to be removed from the rim so the spoke can be replaced.




In view of the above, there exists a need for a bicycle wheel which overcomes the above mentioned problems in the prior art. This invention addresses this need in the prior art as well as other needs, which will become apparent to those skilled in the art from this disclosure.




SUMMARY OF THE INVENTION




One object of the present invention is to provide a bicycle wheel with a lightweight rim that is relatively durable without adding any thickness to the spoke receiving portion of the rim.




Another object of the present invention is to provide a bicycle wheel, in which a plurality of holes in the outer peripheral surface of the rim can be eliminated such that a tubeless or a tubed tire can be utilized.




Another object of the present invention is to provide a bicycle wheel with fewer spokes extending between the rim and the hub.




Another object of the present invention is to provide a bicycle wheel, which can be relatively simple and inexpensive to manufacture by conventional manufacturing techniques.




Still another object of the present invention is to provide a bicycle wheel in which the tire does not have to be removed to replace a spoke.




Still another object of the present invention is to provide a bicycle wheel in which a tubeless tire can be used and spokes can be replaced without removing the tire.




The foregoing objects can basically be attained by providing a spoke and rim assembly, comprising an annular rim having a hollow interior formed by an outer annular portion adapted to receive a tire thereon, first and second annular spoke attachment portions extending from the outer annular portion and located radially inwardly of the outer annular portion and an inner annular portion located radially inwardly of the first and second annular spoke attachment portions and extending between the first and second annular spoke attachment portions. The first and second annular spoke attachment portions face in substantially opposite directions with a plurality of circumferentially arranged spoke openings formed therein. The spoke and rim assembly includes a plurality of inwardly extending spokes with each of the spokes having an outer end portion at least partially received within one of the spoke openings. Each of the spokes has a center portion located radially inwardly of the outer end portion, and an inner end portion located radially inwardly of the center portion. The spoke and rim assembly also includes a plurality of reinforcement members with each of the reinforcement members being at least partially located in the spoke openings and coupled to one of the outer portions of the spokes. The reinforcement members have first and second transverse dimensions that are so dimensioned relative to the spoke openings such that the reinforcement members with the outer portions of the spokes coupled thereto pass through the spoke openings in a first relative orientation between the reinforcement members and the spoke openings, and are retained within the spoke openings in a second relative orientation between the reinforcement members and the spoke openings.




The foregoing objects can also basically be attained by providing a bicycle rim, comprising an outer annular portion, first and second annular spoke attachment portions, an inner annular portion and a plurality of reinforcement members. The outer annular portion is adapted to receive a tire thereon. The first and second annular spoke attachment portions extend from the outer annular portion and are located radially inwardly of the outer annular portion. The first and second annular spoke attachment portions face in substantially opposite directions and have a plurality of circumferentially arranged spoke openings formed therein. The inner annular portion is located radially inwardly of the first and second annular spoke attachment portions and extends between the first and second annular spoke attachment portions. The outer annular portion is free of openings within twelve millimeters or about five degrees of at least a majority of the spoke openings as measured from each center point of the majority of said spoke openings.




The foregoing objects can further be attained by providing a reinforcement member adapted to be positioned between a spoke and a rim with an outer annular portion, first and second annular spoke attachment portions extending from the outer annular portion and located radially inwardly of the outer annular portion and an inner annular portion located radially inwardly of the first and second annular spoke attachment portions and extending between the first and second annular spoke attachment portions. The reinforcement member includes a first portion, a second portion and a spoke hole. The first portion has a first maximum width that is adapted to be received in a spoke opening of the rim. The second portion has a second maximum width that forms an abutment surface between the first and second portions. The spoke hole extends through the first and second portions, the spoke hole being sized to receive a portion of the spoke therein. The first and second portions have a transverse dimension that is so dimensioned relative to the spoke opening such that the reinforcement member with the portion of the spoke coupled thereto passes through the spoke opening in a first relative orientation between the reinforcement member and the spoke opening, and is retained within the spoke opening in a second relative orientation between the reinforcement member and the spoke opening by the abutment surface.




The foregoing objects can further be attained by providing a bicycle spoke, comprising a rim attachment end, an elongated center portion, a hub attachment end, and a reinforcement member. The rim attachment end is adapted to be removably received within a spoke opening of a rim. The elongated center portion extends from the rim attachment end. The hub attachment end extends from the center portion. The reinforcement member is located on the rim attachment end such that the reinforcement member is offset from a longitudinal axis of the center portion. The reinforcement member includes a first portion and a second portion. The first portion has a first maximum width that is adapted to be received in the spoke opening of the rim. The second portion has a second maximum width that forms an abutment surface between the first and second portions. The reinforcement member has transverse dimensions that are so dimensioned relative to the spoke opening such that the reinforcement member with the rim attachment end of the spoke coupled thereto passes through the spoke opening in a first relative orientation between the reinforcement member and the spoke opening, and is retained within the spoke opening in a second relative orientation between the reinforcement member and the spoke opening by the abutment surface.











These and other objects, features, aspects and advantages of the present invention will become readily apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses preferred embodiments of the present invention.




BRIEF DESCRIPTION OF THE DRAWINGS




Referring now to the attached drawings which form a part of this original disclosure:





FIG. 1

is a side elevational view of a bicycle wheel with a front hub, twelve spokes with reinforcement members and a rim in accordance with a first embodiment of the present invention;





FIG. 2

is an enlarged side elevational view of the front bicycle hub illustrated in

FIG. 1

with the inner end portions of the spokes coupled thereto;





FIG. 3

is an enlarged, partial side elevational view of a portion of the front bicycle wheel illustrating the connection between the rim and two of the spokes of the bicycle wheel illustrated in

FIG. 1

;





FIG. 4

is an enlarged, partial side elevational view of a portion of the front bicycle wheel illustrating the spoke and reinforcement member in a first orientation prior to inserting the outer end of the spoke and reinforcement member into one of the spoke openings;





FIG. 5

is an enlarged, partial side elevational view of a portion of the front bicycle wheel illustrating the spoke and reinforcement member in the first orientation after starting to insert the reinforcement member and the outer end of the spoke into the spoke opening of the rim;





FIG. 6

is an enlarged, partial side elevational view of one of the spokes illustrated in

FIGS. 1-5

in accordance with the present invention;





FIG. 7

is a partial side edge elevational view of the spoke illustrated in

FIG. 6

;





FIG. 8

is a partial, cross-sectional view of the bicycle rim as seen along section line


8





8


of

FIG. 3

with a pair of spokes illustrated in elevation and the rim and reinforcement members illustrated in cross-section;





FIG. 9

is a partial, cross-sectional view of the bicycle rim as seen along section line


9





9


of

FIG. 3

;





FIG. 10

is a partial, cross-sectional view of the bicycle rim as seen along section line


8





8


of

FIG. 3

with the pair of spokes removed from the reinforcement members and the rim;





FIG. 11

is a partial, cross-sectional view of the bicycle rim as seen along section


9





9


of

FIG. 3

with the spokes removed from the reinforcement members and the rim;





FIG. 12

is an enlarged, partial cross-sectional view of the bicycle rim as seen along section


12





12


of

FIG. 1

, illustrating valve holes formed in the rim;





FIG. 13

is an enlarged side elevational view of one of the reinforcement members or washers in accordance with the present invention;





FIG. 14

is an end edge elevational view of the reinforcement member or washer illustrated in

FIG. 13

;





FIG. 15

is an opposite side elevational view of the reinforcement member or washer illustrated in

FIGS. 13 and 14

;





FIG. 16

is a side edge elevational view of the reinforcement member or washer illustrated in

FIGS. 13-15

;





FIG. 17

is a longitudinal cross-sectional view of the reinforcement member or washer illustrated in

FIGS. 13-16

as seen along section line


17





17


of

FIG. 13

;





FIG. 18

is a longitudinal cross-sectional view of the reinforcement member or washer illustrated in

FIGS. 13-16

as seen along section line


18





18


of

FIG. 13

;





FIG. 19

is an enlarged side elevational view of a modified reinforcement member or washer in accordance with a second embodiment of the present invention;





FIG. 20

is an end edge elevational view of the reinforcement member or washer illustrated in

FIG. 19

;





FIG. 21

is an opposite side elevational view of the reinforcement member or washer illustrated in

FIGS. 19 and 20

;





FIG. 22

is a side edge elevational view of the reinforcement member or washer illustrated in

FIGS. 19-21

;





FIG. 23

is a longitudinal cross-sectional view of the reinforcement member or washer illustrated in

FIGS. 19-22

as seen along section line


23





23


of

FIG. 19

;





FIG. 24

is a longitudinal cross-sectional view of the reinforcement member or washer illustrated

FIGS. 19-22

as seen along section line


24





24


of

FIG. 19

;





FIG. 25

is a partial, cross-sectional view of a portion of the bicycle rim with a modified reinforcement member illustrated in cross-section and the spoke illustrated in elevation in accordance with a third embodiment of the present invention;





FIG. 26

is a partial, cross-sectional view of a portion of the bicycle rim with a modified reinforcement member shown in cross-section and the spoke shown in elevation in accordance with a fourth embodiment of the present invention;





FIG. 27

is a partial, cross-sectional view of a portion of the bicycle rim with a modified reinforcement member illustrated in cross-section and a spoke illustrated in elevation in accordance with a fifth embodiment of the present invention;





FIG. 28

is a partial cross-sectional view of a modified clincher style bicycle rim with a pair of reinforcement members shown in cross-section and a pair of spokes shown in elevation in accordance with the present invention;





FIG. 29

is an enlarged, partial cross-sectional view of an alternate spoke with reinforcement member integrally formed therewith in accordance with the present invention; and





FIG. 30

is an enlarged, partial cross-sectional view of an alternate spoke with reinforcement member die-cast onto the outer portion of the spoke in accordance with the present invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring initially to

FIGS. 1 and 2

, a bicycle wheel


12


in accordance with the present invention is illustrated in accordance with the present invention. Bicycle wheel


12


can be utilized as either a front bicycle wheel or a rear bicycle wheel. Accordingly, it will be apparent to those skilled in the art from this disclosure that the description pertaining to the construction of bicycle wheel


12


applies to either a front bicycle wheel or a rear bicycle wheel.




Bicycle wheel


12


has a central hub


20


, a plurality of outwardly extending spokes


22


and an annular rim


24


with a pneumatic tire


26


coupled thereto in a conventional manner. In the illustrated embodiment shown herein, bicycle wheel


12


has twelve spokes


22


extending radially between central hub


20


and annular rim


24


. Of course, it will be apparent to those skilled in the art from this disclosure that the bicycle wheel


12


can have fewer or more spokes


22


than illustrated if needed and/or desired.




As seen in

FIG. 2

, hub


20


has a tubular body section


30


with six spoke attachment points


32


with holes


34


for coupling spokes


22


thereto. Tubular body section


30


has an axial bore that is adapted to receive a hub assembly


28


therein.




The number and shape of the spoke attachment points


32


will depend upon the number of spokes and their shapes. Accordingly, it will be apparent to those skilled in the art from this disclosure that other types and shapes of hubs can be utilized in connection with the present invention.




As seen in

FIGS. 2-7

, each of the spokes


22


has an outer end portion


40


, a center or middle portion


42


and an inner end portion


44


. Outer end portions or spoke heads


40


are coupled to rim


24


by reinforcement members or washers


48


as discussed below. Reinforcement members or washers


48


are designed to disperse the stresses applied to rim


24


by spokes


22


.




Straight center portion


42


is located radially inwardly of outer end portion


40


, and inner end portion


44


is located radially inwardly of the center portion


42


. Each inner end portion


44


is preferably externally threaded for receiving a spoke nipple


46


. Moreover, each inner end portion


44


forms a hub attachment end of each spoke


22


. Inner end portion


44


is coupled to hub


20


in a relatively conventional manner. Preferably, outer end portion


40


, center portion


42


and inner end portion


44


are constructed as a one-piece, unitary member with a spoke nipple


46


threadedly coupled to each inner end portion


44


of the spokes


22


for connection to hub


20


.




In this embodiment, as best seen in

FIGS. 6 and 7

, outer end portions


40


of spokes


22


each have a bent section


50


with an enlarged head


52


at the free end of bent section


50


. Bent section


50


has a circular cross-section of a predetermined width or diameter. The head


52


has a larger width or diameter to secure spoke


22


to rim


24


via reinforcement member or washer


48


. Each enlarged head is shaped so as not to interfere with the rim


24


when mounting the spokes


22


and reinforcement members


48


thereto, as discussed below in more detail. Each enlarged head


52


and each bent section


50


form a rim attachment end of each spoke


22


. Center portions


42


and inner end portions


44


each have a circular or elliptical cross section. Of course, it will be apparent to those skilled in the art that the entire length of spokes


22


can be substantially uniform along their entire cross sections if needed and/or desired. It will also be apparent to those skilled in the art that constant cross section spokes can be utilized or spokes with a varying cross section can be utilized as needed and/or desired.




As seen in

FIGS. 3

,


6


and


7


, outer end portions


40


of spokes


22


are bent to form heads


52


at the free ends of spokes


22


which are offset from the bent sections


50


. Of course, it will be apparent to those skilled in the art from this disclosure that outer end portions


40


can be bent or formed to have a different shape and/or cross section than the illustrated shapes and cross sections. In any event, the shapes and cross sections of bent section


50


and head


52


of each spoke should be configured to prevent axial movement of the spoke relative to rim


24


when the spoke is in the installed position.




Center portions


42


of spokes


22


are illustrated as being substantially straight wire type spokes with substantially elliptical cross sections. However, it will be apparent to those skilled in the art from this disclosure that center portions


42


of spokes


22


can be configured to have other types of cross sections and/or shapes. For example, center portions


42


can be circular or more rectangular in cross section with the shape being uniformed along the entire length of center portion


42


. Alternatively, the cross section of center portion


42


can vary along its length such that the cross section of center portion


42


becomes wider as it approaches hub


20


. In other words, the thickness and/or width of center portion


42


can be either uniformed or varied as needed and/or desired.




Inner end portions


44


of spokes


22


are threaded for receiving conventional spoke nipples


46


thereon. More specifically, inner end portions


44


of spokes


22


are inserted through one end of bores


34


of hub


20


, and then spoke nipples


46


are inserted through the other end of bores


34


. The headed or flanged portion of the spoke nipples


46


engage an internal abutment surface of bores


34


to fixedly secure inner end portions


44


of spokes


22


to hub


20


. Accordingly, spokes


22


can be tightened in a substantially conventional manner between hub


20


and rim


24


to secure inner end portions


44


of spokes


22


thereto.




Rim


24


is a so-called deep rim in which the rim height is greater than the rim width and is designed to have pneumatic tire


26


fastened thereto by a tire cement. It will be apparent to those skilled in the art that the shape of rim


24


could be modified to accommodate different types of tires such as “clinchers” as needed and/or desired, as discussed below. Of course, rim


24


can have other shapes to accommodate other types of tires as needed and/or desired without departing from the scope of the present invention. Rim


24


is constructed of a substantially rigid material, such as those materials, which are well known in the art. For example, rims


24


can be constructed of any suitable metallic material, such as plated steel, stainless steel, aluminum, magnesium or titanium, as well as other non-metallic materials, such as a carbon fiber composite, which can be utilized for a bicycle wheel.




Rim


24


is substantially circular as seen in side elevation (FIG.


1


), and has an outer annular portion


68


, a pair of annular spoke attachment portions


70


and an inner annular portion


72


. The outer annular portion


68


is adapted to receive pneumatic tire


26


thereon. As seen in

FIG. 12

, outer annular portion


68


of rim


24


has a valve aperture


74




a


for receiving part of a valve


75


therein. Inner annular portion


72


also includes a valve aperture


74




b


for receiving part of the valve


75


. Preferably, outer annular portion


68


is free of openings except for valve aperture


74




a


. Valve


75


is relatively conventional and preferably centered between adjacent pairs of spokes


22


. Accordingly, valve


75


will not be discussed or illustrated in detail herein.




The annular spoke attachment portions


70


are located radially inward of outer annular portion


68


, with inner annular portion


72


connecting spoke attachment portions


70


together. In other words, spoke attachment portions


70


face in substantially opposite directions and extend radially inwardly from the outer annular portion


68


. Therefore, rim


24


is a tubular member with a hollow interior area formed by outer annular portion


68


, spoke attachment portions


70


and inner annular portion


72


. In this embodiment, outer annular portion


68


of rim


24


is designed for use with “tubular” or “sew-up” type tires which are cemented to outer annular portion


68


.




Each spoke attachment portion


70


has a plurality of circumferentially spaced spoke openings


76


for receiving the outer end portions


40


of spokes


22


with reinforcement members


48


located thereon. In this embodiment, opposing spoke openings


76


are formed at the same circumferential location. Of course, the configurations and locations of spoke openings


76


could be modified as needed and/or desired. For example, opposing spoke openings


76


could be arranged in a staggered configuration.




As mentioned above, outer annular portion


68


is preferably formed without any openings or access apertures, except for valve aperture


74




a


. Preferably, outer annular portion


68


is at least free of openings within about five (5) degrees in each direction from a radial line extending from the center of the hub


20


through the center of spoke openings


76


. Alternatively, the outer annular portion


68


is free of openings within about twelve millimeters of at least a majority of the spoke openings


76


as measured from an axial center point of the spoke openings


76


to a center point of an access aperture on the outer annular portion


68


. In other words, it is not necessary to provide access apertures in the outer annular portion


68


for inserting the spokes


22


with the reinforcement members


48


therethrough, as discussed below in more detail. However, valve aperture


74




a


could be located adjacent one or two of the spoke openings


76


such that at least a majority of spoke openings


76


are free of openings within about five (5) degrees in each direction from a radial line extending from the center of the hub


20


through the center of spoke openings


76


.




Spoke openings


76


are preferably equally spaced about the circumference of spoke attachment portions


70


. In this embodiment, the plurality of spoke openings


76


are preferably circular openings that are larger than the outer end portions


40


of the spokes


22


. Spoke openings


76


of the present invention are larger than conventional spoke openings. Therefore, reinforcement members


48


distribute the forces on rim


24


over a greater area than ordinary round spokes such that stress fracturing and/or tearing of rim


24


is minimized.




Preferably, spoke openings


76


have circumferential widths of at least approximately 5.0 millimeters. More specifically, spoke openings


76


preferably are substantially circular openings that have circumferential widths or diameters of approximately 6.6 millimeters (+ or −0.05 millimeters). Of course, it will be apparent to those skilled in the art that spoke openings


76


could have other shapes and/or sizes as needed and/or desired without departing from the scope of the present invention. In any event, spoke openings


76


are sized and configured such that outer end portions


40


of spokes


22


with reinforcement members


48


located thereon can be inserted through spoke openings


76


. Moreover, spoke openings


76


are sized and configured to retain outer end portions


40


with reinforcement members


48


mounted thereon within spoke openings


76


when spokes


22


are installed to rim


24


and hub


20


. Furthermore, enlarged heads


52


of spokes


22


are shaped so as not to interfere with the insertion of outer end portions


40


with reinforcement members


48


mounted thereon into spoke openings


76


. Therefore, wheel


12


can be easily assembled, without the need for additional access apertures formed in outer annular portion


68


.




Referring to

FIGS. 3-5

,


8


-


11


and


13


-


18


, reinforcement members


48


will now be discussed in more detail. Reinforcement members


48


are designed to disperse the stresses applied to rim


24


by spokes


22


. Reinforcement members


48


are designed to pass through the spoke openings


76


in a first relative orientation between reinforcement members


48


and the spoke openings


76


, as seen in

FIGS. 4 and 5

. The reinforcement members


48


are also designed to be retained within the spoke openings


76


in a second relative orientation between the reinforcement members


48


and the spoke openings


76


, as seen in FIG.


3


. Reinforcement members


48


are preferably elongated disk shaped members with each reinforcement member or washer


48


having a first (smaller) substantially circular stepped portion


80


, a second (larger) elongated stepped portion


82


and a centrally located spoke hole


84


.




Preferably, each reinforcement member or washer


48


is constructed as a one-piece, unitary metallic member. An example of one suitable material for reinforcement members


48


is aluminum alloy. Of course, other materials can be used. Moreover, reinforcement members


48


can be made of the same material as rim


24


or a different material from rim


24


. It will be readily apparent to those skilled in the art from this disclosure that reinforcement members


48


do not have to be stepped as illustrated, but can have other shapes that can carry out the advantages of the present invention.




Preferably, reinforcement members


48


have an axial thickness of approximately 3.2 millimeters. The diameters or widths of first and second portions


80


and


82


should be relatively large to disperse the stresses on rim


24


from spokes


22


. The axial thickness of first (smaller) stepped portion


80


is approximately 1.4 millimeters, while the axial thickness of second (larger) stepped portion


82


is approximately 1.8 millimeters. The word approximately as used herein means ±0.1 millimeters.




It will be readily apparent to those skilled in the art from this disclosure that reinforcement members


48


can be made thicker than the thickness of spoke attachment portion


70


, or can be the same thickness as the thickness of spoke attachment portion


70


. In any event, reinforcement members


48


have first and second transverse dimensions A and B (noted in

FIGS. 13 and 14

) that are so dimensioned relative to spoke openings


76


such that the reinforcement members


48


with the outer portions


40


of the spokes


22


coupled thereto can pass through spoke openings


76


in the first relative orientation and be retained in spoke openings


76


in the second orientation.




First substantially circular stepped portion


80


of each reinforcement member


48


can be frictionally retained within one of the spoke openings


76


of rim


24


. Since spokes


22


are placed under tension between hub


20


and rim


24


, spokes


22


apply an inward radial force at circumferentially spaced locations that correspond to spoke openings


76


. Reinforcement members


48


disperse the stresses on rim


24


from spokes


22


. Specifically, first substantially circular stepped portion


80


of each reinforcement member


48


increases the effective diameter or width of spoke


22


to spread out the stresses on the rim


24


. Accordingly, the strength of rim


24


is increased without adding thickness to the wall of spoke attachment portion


70


.




Referring to

FIG. 8

, first substantially circular stepped portion


80


of each reinforcement member


48


has a first maximum width C and each second elongated stepped portion


82


has a second maximum width D that forms an abutment surface


86


between first and second portions


80


and


82


. First substantially circular stepped portions


80


are sized and configured to be located within spoke opening


76


of attachment portions


70


of rim


24


, such that abutment surface


86


contacts the interior of rim


24


. In this embodiment, each second transverse dimension B (noted in

FIG. 13

) is substantially equal to the maximum width D (noted in

FIG. 8

) of second elongated stepped portions


82


. Therefore, abutment surface


86


retains the reinforcement members


48


in the spoke openings


76


.




Preferably, abutment surface


86


of each reinforcement member


48


is formed by two abutment sections


86




a


and


86




b


(bottom and top abutment sections


86




a


and


86




b


) located on opposite sides of first portion


80


. Abutment sections


86




a


and


86




b


extend from a pair of end surfaces


87




a


and


87




b


(bottom and top end surfaces


87




a


and


87




b


) of second portion


82


to the outer periphery of first portion


80


. End surfaces


87




a


and


87




b


are partial cylindrical surfaces extending in an axial direction of reinforcement members


48


. In other words, end surfaces


87




a


and


87




b


lie on an imaginary cylinder with a diameter corresponding to the second maximum width D (noted in

FIG. 8

) of second portion


82


and the second transverse dimension B of reinforcement member


48


. Thus, reinforcement members


48


can be retained in spoke openings


76


.




Each reinforcement member


48


includes a pair of curved side surfaces


88


extending generally in the longitudinal direction of the reinforcement members


48


. The first transverse dimension A (noted in

FIG. 14

) is measured between the pair of curved side surfaces


88


. Transverse dimension A is preferably the same, or slightly smaller than the size of spoke openings


76


. More specifically, transverse dimension A (noted in

FIG. 14

) is preferably 6.5 millimeters±0.05 millimeters. Curved side surfaces


88


are preferably formed on an imaginary circle or cylinder with a diameter of approximately 6.5 millimeters±0.05 millimeters. Accordingly, transverse dimension A can be considered the diameter of this imaginary circle or cylinder. Due to this arrangement, reinforcement members


48


can be inserted into spoke openings


76


with outer portions


40


of spokes


22


coupled thereto, as seen in

FIGS. 4 and 5

.




Basically, curved side surfaces


88


are formed by a pair of first curved side sections


88




a


formed on the outer periphery of first portion


80


, and a pair of second curved side sections


88




b


formed on second portion


82


as best seen in FIG.


14


. The maximum width C (noted in

FIG. 8

) of first portion


80


is preferably approximately 6.5 millimeters (+0.09 millimeters or −0.01 millimeters). Accordingly, the maximum width C of first portion


80


can be slightly larger than the first transverse dimension A. Therefore, in the illustrated embodiment, first portion


80


does not have a completely cylindrical outer peripheral surface and has the pair of first curved side sections


88




a


. In other words, the outer peripheral surface of the first portion


80


is substantially cylindrical, except for the presence of the pair of first curved side sections


88




a


. On the other hand, spoke openings


76


are preferably circular openings. Of course, it will be apparent to those skilled in the art that various shapes and sizes of spoke opening


76


and reinforcement members


48


could be utilized without departing from the scope of the present invention.




Curved side surfaces


88


are basically convex curved surfaces that extend between a pair of axial faces


90


and


92


of first and second portions


80


and


82


of reinforcement members


48


to form several pairs of parallel edges. Specifically, first edges


91


are formed at end face


90


, second edges


93




a


and


93




b


are formed at abutment sections


86




a


and


86




b


, and third edges


95


are formed at end face


92


.




Preferably, each reinforcement member


48


has a spoke hole


84


extending therethrough with one of the spokes


22


received in the spoke hole


84


as mentioned above. In this embodiment, each of the spoke holes of each reinforcement member


48


is non-circular in transverse cross-section.




Spoke holes


84


of reinforcement washers


48


are designed so that spokes


22


can freely pass therethrough. In the illustrated embodiment, the center portions


42


of spokes


22


are elliptical in cross-section. Accordingly, spoke holes


84


have longitudinally extending slots


94


that increase the effective diameter of width of spoke holes


84


to allow the center portions


42


of spokes


22


to pass therethrough.




A slanted cutout or notch


96


is formed on the axial face of first stepped portion


80


. This notch


96


accommodates the bent section


50


of the outer end portion of spoke


22


. Preferably, notch


96


is located approximately 135° from slot


94


. Thus, when bent section


50


of spoke


22


is seated in notch


96


, movement of spoke


22


in spoke hole


84


is limited. Notch


96


is arranged so the center portion


42


is substantially parallel to the curved side surfaces


88


and the edges


93




a


and


93




b.






In assembling bicycle wheel


12


, reinforcement members


48


are first placed on the outer end portions


40


of spokes


22


. Specifically, the inner end portions


44


of spokes


22


are first inserted into spoke holes


84


of reinforcement members


48


. Then, the spokes


22


are rotated so that the longer width portion of the elliptical center portions


42


are aligned with slots


94


such that the center portions


42


of spokes


22


can pass through spoke holes


84


of reinforcement members


48


. Once the center portions


42


of spokes


22


have passed through spoke holes


84


of reinforcement members


48


, the spokes


22


can be further rotated within spoke holes


84


such that the bent section


50


of the spokes


22


are seated in notches


96


and heads


52


of spokes


22


engage the axial surface of second stepped portion


82


of reinforcement members


48


.




Now, the spokes


22


with reinforcement members


48


thereon can be installed into rim


24


. The outer end portions


40


of spokes


22


with reinforcement members


48


are inserted into the spoke openings


76


in the spoke attachment portions


70


of rim


24


at an angle (first orientation) such that the reinforcement members


48


pass completely through spoke openings


76


. Once the outer end portions


40


of spokes


22


and washers


48


have fully entered the interior of rim


24


, the first stepped portions


80


of reinforcement washers


48


are seated in the spoke openings


76


of rim


24


(moved to the second orientation). Preferably, spoke openings


76


are slightly larger than or the same size as the maximum width C of stepped portion


80


such that washers


48


are either loosely received within spoke openings


76


or securely received via interference fit.




Now, the inner end portions


44


of spokes


22


are inserted into openings


34


of hub


20


. Spoke nipples or nuts


46


are also inserted into openings


34


and threaded onto the inner end portions


44


of spokes


22


. The tension in spokes


22


is then adjusted such that rim


24


is properly positioned about hub


20


. The wheel


12


can now be installed on a frame of a bicycle in a conventional manner via hub


20


.




Second Embodiment




Referring now to

FIGS. 19-24

, an alternate reinforcement member


148


is illustrated in accordance with a second embodiment of the present invention. Basically, reinforcement member


148


is designed to be utilized with rim


24


of the first embodiment. More specifically, reinforcement member


148


is identical to reinforcement member


48


of the first embodiment, except that reinforcement member


148


is designed to be utilized with a spoke having a circular cross-section (not shown) instead of an elliptical cross-section, as seen in the first embodiment. In view of the similarities between the reinforcement members


48


and


148


, the following description of the reinforcement member


148


will focus mainly on the differences. Accordingly, it will be apparent to those skilled in the art from this disclosure that most of the description of the reinforcement member


48


applies to the description of reinforcement member


148


.




Reinforcement member


148


is substantially identical to reinforcement member


48


discussed above except that spoke hole


184


is especially designed for a spoke with a circular cross-section. Specifically, reinforcement washer


148


has a first (smaller) substantially circular stepped portion


180


, and a second elongated (larger) stepped portion


182


with the centrally located spoke hole


184


extending axially therethrough. An abutment surface


186


is formed between first and second stepped portions


180


and


182


. In this embodiment, the spoke hole


184


is a substantially cylindrical bore except at the axial end adjacent the second stepped portion


182


in which the hole


184


becomes frustoconical and the other axial end which has a slanted cutout or notch


196


. In other words, longitudinal slot


94


of spoke hole


84


of the first embodiment has been eliminated in this embodiment. The reinforcement member


148


is mounted in rim


24


in substantially the same manner as discussed above regarding the reinforcement member


48


of the first embodiment.




Third Embodiment




Referring now to

FIG. 25

, a portion of the rim


24


is illustrated with a reinforcement member


248


and a spoke


22


in accordance with a third embodiment of the present invention. The reinforcement member


248


is substantially identical to the reinforcement member


48


of the first embodiment, except that the lower abutment section


86




a


of the abutment surface


86


of the first embodiment has been eliminated in this third embodiment. Accordingly, in this embodiment, the second transverse dimension is substantially equal to the second maximum width of the second portion


282


, and is smaller than the maximum width D of the first embodiment. Basically, reinforcement washer


248


has a first (smaller) substantially circular stepped portion


280


, a second elongated (larger) stepped portion


282


and a centrally located spoke hole


284


. In this embodiment, the first stepped portion


280


is identical to the first stepped portion


80


of the first embodiment. Also, the spoke hole


284


is identical to the spoke hole


84


of the first embodiment. Therefore, the first stepped portion


280


and the spoke hole


284


will not be discussed or illustrated in detail herein.




Fourth Embodiment




Referring now to

FIG. 26

, a portion of the rim


24


is illustrated with a reinforcement member


348


and a spoke


322


in accordance with a fourth embodiment of the present invention. This embodiment is a modified version of the third embodiment. Specifically, spoke


322


is identical to spoke


22


except spoke head


352


is transversely offset a further distance than spoke head


52


of spoke


22


to accommodate reinforcement member


348


. Accordingly, spoke


322


will not be discussed or illustrated in detail herein. More specifically, reinforcement member


348


is substantially identical to reinforcement member


248


, except that reinforcement member


348


includes a third stepped portion


385


that extends radially outwardly from the bottom edge of the first stepped portion


380


. This third portion


385


forms an additional abutment surface


385




a


that faces in a substantially opposite axial direction relative to the abutment surface


386




b


formed between the first and second stepped portions


380


and


382


. This additional abutment surface


385




a


contacts the exterior surface of the spoke attachment portion


70


of the rim


24


. Thus, the abutment surfaces


386




b


and


385




a


cooperate together to securely hold the reinforcement member


348


within the rim


24


. Preferably, third portion


385


extends radially inwardly when reinforcement member


348


is installed in rim


24


.




Fifth Embodiment




Referring now to

FIG. 27

, a portion of a modified rim


424


is illustrated with a reinforcement member


448


and a spoke


22


in accordance with a fifth embodiment of the present invention. The reinforcement member


448


is a further modified version of the reinforcement member


348


of the fourth embodiment, discussed above. In view of the similarities between the reinforcement member


448


and the prior reinforcement members, reinforcement member


448


will not be discussed or illustrated in detail herein. Rather, the following description of the reinforcement member


448


will focus on the differences between the reinforcement member


448


and the prior reinforcement members.




The reinforcement member


448


has a first (smaller) substantially circular stepped portion


480


, a second elongated (larger) stepped portion


482


, a centrally located spoke hole


484


extending through the first and second stepped portions


480


and


482


, and a third portion


485


extending radially outwardly from the first stepped portion


480


. In this embodiment, the third portion


485


is located in a recess


471


formed in the exterior surface of the spoke attachment portion


470


. This third portion


485


is designed to be flushly mounted with the exterior surface of the spoke attachment portion


470


of the rim


424


. The rim


424


is substantially identical to rim


24


of the first embodiment except rim


424


has recesses


471


adjacent the spoke openings. More specifically, the third portion


485


extends radially outwardly from the first portion


480


so that its outer surface is flush with the axial end of the first stepped portion


480


and the exterior surface of the spoke attachment portion


470


of the rim


424


. The third portion


485


forms an additional abutment surface


485




a


between the third portion


485


and the first stepped portion


480


. This additional abutment surface


485




a


faces in a substantially opposite axial direction from the abutment surface


486




b


formed between the first and second stepped portions


480


and


482


. Preferably, third portion


485


extends radially inwardly when reinforcement member


448


is installed in rim


424


.




Clincher Style Rim




Referring now to

FIG. 28

, a portion of a clincher rim


24


′ is illustrated in cross-section with a pair of reinforcement members


48


and spokes


22


coupled thereto in accordance with the present invention. The clincher rim


24


′ is substantially identical to the rim


24


discussed above, except that rim


24


′ has a pair of upwardly extending annular clincher flanges


69


for securing a clincher tire thereto. Additionally, clincher rim


24


′ has a slightly modified cross-sectional shape. However, other than the clincher flanges


69


, the clincher rim


24


′ is substantially identical to the rim


24


discussed above and is designed to be used with the reinforcement members


48


and the spokes


22


, as discussed above. Therefore, rim


24


′ will not be discussed or illustrated in detail herein. This rim


24


′ is especially utilized for a tubeless tire. Specifically, rim


24


′ basically has an outer annular portion


68


′, a pair of annular spoke attachment portions


70


′ and an inner annular portion


72


′. The outer annular portion


68


′ is free of any openings, except for an aperture that is designed to receive a conventional valve.




Alternate Spokes/Reinforcement Members




Referring now to

FIGS. 29 and 30

, outer end portions


40


′ and


40


″ of spokes


22


′ and


22


″ are illustrated with reinforcement members


48


′ and


48


″ permanently secured to the outer end portions


40


′ and


40


″, respectively, in accordance with the present invention. In

FIG. 29

, the reinforcement member


48


′ is integrally formed with the spoke


22


′, so as to form a one-piece, unitary member constructed from a single piece of material. In

FIG. 30

, the reinforcement member


48


″ is die-casted onto the outer end portion


40


″ of the spoke


22


″. Basically, the reinforcement members


48


′ and


48


″ and spokes


22


′ and


22


″ are substantially identical to reinforcement member


48


and spoke


22


of the first embodiment discussed above except the spoke opening in the reinforcement members


48


′ has been eliminated in

FIG. 29

, and the spoke opening in the reinforcement washer


48


″ has the same shape as the outer portion


40


″ of spoke


22


″ (FIG.


30


), and reinforcement members


48


′ and


48


″ permanently secured to the outer end portions


40


′ and


40


″, respectively. In other words,

FIGS. 29 and 30

illustrate two ways of creating spokes with reinforcement members permanently secured thereto.




The terms of degree such as “substantially”, “about” and “approximately” as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. These terms should be construed as including a deviation of at least ±5% of the modified term if this deviation would not negate the meaning of the word it modifies.




While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. Furthermore, the foregoing description of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.



Claims
  • 1. A bicycle component assembly for a bicycle, comprising:an annular rim having a hollow interior formed by an outer annular portion adapted to receive a tire thereon, first and second annular spoke attachment portions extending from said outer annular portion and located radially inwardly of said outer annular portion and an inner annular portion located radially inwardly of said first and second annular spoke attachment portions and extending between said first and second annular spoke attachment portions, said first and second annular spoke attachment portions face in substantially opposite directions with a plurality of circumferentially arranged spoke openings formed therein; a plurality of inwardly extending spokes with each of said spokes having an outer end portion at least partially received within one of said spoke openings, a center portion located radially inwardly of said outer end portion, and an inner end portion located radially inwardly of said center portion; and a plurality of reinforcement members with each of said reinforcement members being at least partially located in said spoke openings and coupled to one of said outer portions of said spokes, said reinforcement members having first and second transverse dimensions that are so dimensioned relative to said spoke openings such that said reinforcement members with said outer portions of said spokes coupled thereto pass through said spoke openings in a first relative orientation between said reinforcement members and said spoke openings, and is retained within said spoke openings in a second relative orientation between said reinforcement members and said spoke openings.
  • 2. The bicycle component assembly according to claim 1, whereineach of said reinforcement members has a first portion with a first maximum width and a second portion with a second maximum width that forms an abutment surface between said first and second portions, said first portions being located within said spoke openings of said annular rim and said abutment surface contacting said interior of said annular rim.
  • 3. The bicycle component assembly according to claim 2, whereineach of said second transverse dimensions is substantially equal to each of said second maximum widths of said reinforcement members.
  • 4. The bicycle component assembly according to claim 3, whereineach of said reinforcement members includes a pair of curved side surfaces, said first transverse dimension being measured between said curved side surfaces.
  • 5. The bicycle component assembly according to claim 2, whereineach of said second transverse dimensions is larger than each of said second maximum widths of said reinforcement members to form an additional abutment surface facing in an opposite direction of said abutment surface between said first and second portions.
  • 6. The bicycle component assembly according to claim 5, whereineach of said reinforcement members includes a pair of curved side surfaces, said first transverse dimension being measured between said curved side surfaces.
  • 7. The bicycle component assembly according to claim 2, whereineach of said first portions has a substantially cylindrical outer peripheral surface and each of said spoke openings has a corresponding substantially cylindrical inner periphery.
  • 8. The bicycle component assembly according to claim 2, whereineach of said abutment surfaces of each of said reinforcement members is formed by two abutment sections located on opposite sides of said first portion.
  • 9. The bicycle component assembly according to claim 2, whereineach of said reinforcement member includes a third portion extending from said first portion to form an additional abutment surface between said first portion and said third portion, each of said additional abutment surfaces facing in an opposite direction to said abutment surfaces between said first and second portions.
  • 10. The bicycle component assembly according to claim 9, whereineach of said first portions has an axial thickness substantially corresponding to an axial thickness of said rim and each of said additional abutment surfaces contacts an external surface of said rim adjacent one of said spoke openings.
  • 11. The bicycle component assembly according to claim 10, whereineach of said third portions is at least partially received a recess of said rim with said additional abutment surfaces contacting said recesses of said rim.
  • 12. The bicycle component assembly according to claim 1, whereineach of said reinforcement members has a spoke hole extending therethrough with one of said spokes received therein.
  • 13. The bicycle component assembly according to claim 12, whereineach of said spoke holes of said reinforcement members is non-circular in transverse cross section.
  • 14. The bicycle component assembly according to claim 12, whereineach of said reinforcement members has a radially extending notch adjacent said spoke holes with one of said spokes at least partially located therein.
  • 15. The bicycle component assembly according to claim 1, whereineach of said reinforcement members includes a pair of curved side surfaces, said first transverse dimension being measured between said curved side surfaces such that said reinforcement members with said outer portions of said spokes coupled thereto pass through said spoke openings in said first relative orientation.
  • 16. The bicycle component assembly according to claim 15, whereinsaid curved side surfaces of each reinforcement member lie on an imaginary circle that is no greater than said spoke openings.
  • 17. The bicycle component assembly according to claim 16, whereinsaid curved side surfaces extend between a pair of axial faces of said reinforcement members to form a pair of first edges and a pair of second edges.
  • 18. The bicycle component assembly according to claim 17, whereinsaid first and second edges are substantially parallel.
  • 19. The bicycle component assembly according to claim 1, whereinsaid outer annular portion of said rim is free of openings except a single aperture adapted to receive part of a valve therein.
  • 20. The bicycle component assembly according to claim 1, whereinsaid reinforcement members are integrally formed as one-piece, unitary members with said outer end portions of said spokes.
  • 21. The bicycle component assembly according to claim 1, whereinsaid reinforcement members are die cast onto said outer end portions of said spokes.
  • 22. The bicycle component assembly according to claim 1, whereinsaid outer annular portion is substantially U-shaped with a pair of clincher flanges dimensioned to secure a clincher-type tire thereto.
  • 23. The bicycle component assembly according to claim 1, further comprising:a hub coupled to said inner end portions of said spokes.
  • 24. A reinforcement member adapted to be positioned between a spoke and a rim with an outer annular portion, first and second annular spoke attachment portions extending from said outer annular portion and located radially inwardly of said outer annular portion and an inner annular portion located radially inwardly of said first and second annular spoke attachment portions and extending between said first and second annular spoke attachment portions, said reinforcement member comprising:a first portion with a first maximum width that is adapted to be received in a spoke opening of the rim; a second portion with a second maximum width that forms an abutment surface between said first and second portions; and a spoke hole extending through said first and second portions, said spoke hole being sized to receive a portion of the spoke therein, said first and second portions having a transverse dimension that is so dimensioned relative to the spoke opening such that said reinforcement member with the portion of the spoke coupled thereto passes through the spoke opening in a first relative orientation between said reinforcement member and the spoke opening, and is retained within the spoke opening in a second relative orientation between said reinforcement member and the spoke opening by said abutment surface.
  • 25. A reinforcement member according to claim 24, whereinsaid second portion includes a pair of end surfaces, said maximum width of said second portion being measured between said end surfaces.
  • 26. A reinforcement member according to claim 25, whereinsaid reinforcement member includes a pair of side surfaces extending between said end surfaces, said transverse dimension being measured between said side surfaces.
  • 27. A reinforcement member according to claim 26, whereinsaid side surfaces are convex curved side surfaces extending from an axial face of said second portion to an axial face of said first portion to form at least a pair of first edges and a pair of second edges.
  • 28. A reinforcement member according to claim 27, whereinsaid first and second edges are substantially parallel.
  • 29. A reinforcement member according to claim 27, whereinsaid curved side surfaces lie on an imaginary circle.
  • 30. A reinforcement member according to claim 24, whereinsaid first portion has a substantially cylindrical outer peripheral surface.
  • 31. A reinforcement member according to claim 24, whereinsaid abutment surface is formed by two abutment sections located on opposite ides of said first portion.
  • 32. A reinforcement member according to claim 24, whereinsaid spoke hole of said reinforcement member is non-circular in transverse cross section.
  • 33. A reinforcement member according to claim 24, whereinsaid reinforcement member includes a third portion extending from said first portion to form an additional abutment surface between said first portion and said third portion, said additional abutment surface facing in an opposite direction to said abutment surface between said first and second portions.
  • 34. A bicycle spoke, comprising:a rim attachment end adapted to be removably received within a spoke opening of a rim; an elongated center portion extending from said rim attachment end; a hub attachment end extending from said center portion; and a reinforcement member located on said rim attachment end such that said reinforcement member is offset from a longitudinal axis of said center portion, said reinforcement member including a first portion with a first maximum width that is adapted to be received in the spoke opening of the rim; a second portion with a second maximum width that forms an abutment surface between said first and second portions; and said first and second portions having a transverse dimension that is so dimensioned relative to the spoke opening such that said reinforcement member with an outer portion of the spoke coupled thereto passes through the spoke opening in a first relative orientation between said reinforcement member and the spoke opening, and is retained within the spoke opening in a second relative orientation between said reinforcement member and said spoke opening by said abutment surface.
  • 35. A bicycle spoke according to claim 34, whereinsaid first and second portions have a spoke hole extending therethrough to receive a spoke therein.
  • 36. A bicycle spoke according to claim 34, whereinsaid reinforcement member is integrally formed as a one-piece, unitary member with said rim attachment end.
  • 37. A bicycle spoke according to claim 34, whereinsaid reinforcement member is die cast onto said rim attachment end.
  • 38. A bicycle component assembly for a bicycle, comprising:an annular rim having a hollow interior formed by an outer annular portion adapted to receive a tire thereon, an inner annular portion extending from said outer annular portion and located radially inwardly of said outer annular portion, said inner annular portion having a plurality of circumferentially arranged spoke openings formed therein; a plurality of inwardly extending spokes with each of said spokes having an outer end portion at least partially received within one of said spoke openings, a center portion located radially inwardly of said outer end portion, and an inner end portion located radially inwardly of said center portion; and a plurality of reinforcement members with each of said reinforcement members having a first portion at least partially located in one of said spoke openings and coupled to one of said outer portions of said spokes, said reinforcement members having first and second transverse dimensions that are so dimensioned relative to said spoke openings such that said reinforcement members with said outer portions of said spokes coupled thereto pass through said spoke openings in a first relative orientation between said reinforcement members and said spoke openings, and are retained within said spoke openings in a second relative orientation between said reinforcement members and said spoke openings, each of said spoke openings having a tubular inner peripheral surface and each of said first portions having a corresponding outer peripheral surface substantially parallel to said inner peripheral surface in said second relative orientation such that said first portions of said reinforcement members mate with said spoke openings when said first portions are located within said spoke openings in said second relative orientation.
  • 39. The bicycle component assembly according to claim 38, whereinsaid first portion of each of said reinforcement members has a first maximum width and each of said reinforcement members includes a second portion with a second maximum width that forms an abutment surface between said first and second portions, said abutment surface contacting said interior of said annular rim when said first portions are located within said spoke openings in said second relative orientation.
  • 40. The bicycle component assembly according to claim 38, whereineach of said second transverse dimensions is substantially equal to each of said second maximum widths of said reinforcement members.
  • 41. The bicycle component assembly according to claim 40, whereineach of said reinforcement members includes a pair of curved side surfaces, said first transverse dimension being measured between said curved side surfaces.
  • 42. The bicycle component assembly according to claim 38, whereineach of said reinforcement members has a spoke hole extending therethrough with one of said spokes received therein.
  • 43. The bicycle component assembly according to claim 38, whereinsaid outer annular portion of said rim is free of openings except a single aperture adapted to receive part of a valve therein.
  • 44. The bicycle component assembly according to claim 38, further comprising:a hub coupled to said inner end portions of said spokes.
  • 45. A bicycle component assembly for a bicycle, comprising:an annular rim having a hollow interior formed by an outer annular portion adapted to receive a tire thereon, an inner annular portion extending from said outer annular portion and located radially inwardly of said outer annular portion, said inner annular portion having a plurality of circumferentially arranged spoke openings formed therein; a plurality of inwardly extending spokes with each of said spokes having an outer end portion at least partially received within one of said spoke openings, a center portion located radially inwardly of said outer end portion, and an inner end portion located radially inwardly of said center portion; and a plurality of reinforcement members with each of said reinforcement members having a first portion at least partially located in said spoke openings and coupled to one of said outer portions of said spokes, said reinforcement members having first and second transverse dimensions that are so dimensioned relative to said spoke openings such that said reinforcement members with said outer portions of said spokes coupled thereto pass through said spoke openings in a first relative orientation between said reinforcement members and said spoke openings, and are retained within said spoke openings in a second relative orientation between said reinforcement members and said spoke openings, each of said first portions having a substantially cylindrical outer peripheral surface and each of said spoke openings has a corresponding substantially cylindrical inner periphery.
CROSS-REFERENCE TO RELATED APPLICATIONS

This invention is related to U.S. patent application Ser. No. 09/222,084, filed Dec. 29, 1998, now U.S. Pat. No. 6,126,243, assigned to Shimano, Inc.

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Number Name Date Kind
502500 Perkins Aug 1893 A
2778690 Horling, Jr. Jan 1957 A
2937905 Altenburger May 1960 A
3008770 Mueller Nov 1961 A
5445439 Dietrich Aug 1995 A
5452945 Schlanger Sep 1995 A
5651591 Mercat et al. Jul 1997 A
5769584 Claes Jun 1998 A
5882088 Yahata Mar 1999 A
6048035 Chen Apr 2000 A
6068348 Okajima et al. May 2000 A
6126243 Okajima et al. Oct 2000 A