NL2016681B1 - Bicycle wheel having a spoke nipple, spoke nipple. - Google Patents

Bicycle wheel having a spoke nipple, spoke nipple. Download PDF

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Publication number
NL2016681B1
NL2016681B1 NL2016681A NL2016681A NL2016681B1 NL 2016681 B1 NL2016681 B1 NL 2016681B1 NL 2016681 A NL2016681 A NL 2016681A NL 2016681 A NL2016681 A NL 2016681A NL 2016681 B1 NL2016681 B1 NL 2016681B1
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NL
Netherlands
Prior art keywords
spoke
nipple
rim
angle
openings
Prior art date
Application number
NL2016681A
Other languages
Dutch (nl)
Inventor
Louis Jean Paul Amaury Vroomen Gerard
Original Assignee
Just Ride B V
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Publication date
Application filed by Just Ride B V filed Critical Just Ride B V
Priority to NL2016681A priority Critical patent/NL2016681B1/en
Application granted granted Critical
Publication of NL2016681B1 publication Critical patent/NL2016681B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/043—Attaching spokes to rim
    • B60B1/044—Attaching spokes to rim by the use of spoke nipples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/062—Rims characterised by means for attaching spokes, i.e. spoke seats for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/064—Rims characterised by means for attaching spokes, i.e. spoke seats characterised by shape of spoke mounting holes, e.g. elliptical or triangular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/13—Bicycles; Tricycles

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

Abstract

The invention relates to a bicycle wheel for tubeless tires, comprising a hub, a hollow rim, multiple spokes and self-aligning spoke nipples, wherein the spoke nipples comprise a male fastening part, which is configured to be gripped under any angle between 170° and 190° by a female fastening tool, which is configured to enter the interior of the rim through the openings in the upper bridge, wherein these openings can be disposed in a centre portion of the rim, providing a substantially wide remaining portion of the upper bridge round the openings to receive a tubeless tire in an airtight manner. The invention further relates to a self-aligning spoke nipple, which is configured to be mounted in a rim of a bicycle wheel, wherein the nipple comprises an nipple body and a convex portion, wherein the nipple is configured to be aligned with a longitudinal axis of the spoke upon fastening of the spoke to the nipple and wherein the nipple comprises a male fastening part, which is configured to be gripped under an angle by a female fastening tool.

Description

P32568NL00/RR
Title: Bicycle wheel having a spoke nipple, spoke nipple
The present invention relates to a bicycle wheel. The invention further relates to a selfaligning spoke nipple.
In order for bicycle wheels to become stronger and more reliable, it has become common practice, especially in the field of cycle racing, to mount spokes to a rim by means of self-aligning spoke nipples. Such self-aligning spoke nipples no longer need to receive spokes in the radial direction of the wheel, but may receive spokes under an angle with the radial direction. The spoke nipples are thereby adapted to align themselves with an angle of the spokes, such that, for example, manual aligning is no longer required. As a result, the spokes no longer need to be bended close to the rim, which provides for a stronger connection between the rim and the spokes and a lower risk of having spoke breakage.
In cycle racing, aerodynamic wheels are often used, which comprise a rim having relatively high side walls, an upper bridge and a lower bridge extending in between the side walls, which together define a hollow space. In such aerodynamic wheels, the spoke nipples are often arranged inside the hollow space of the rim, such that they do not hinder the aerodynamic properties of the wheel. In such wheels, the spokes enter the hollow space of the rim through openings in the lower bridge.
An example of self-aligning spoke nipples in aerodynamic wheels can be found in EP 1559582 A1. In such aerodynamic wheels, a longitudinal direction of the spoke nipple and of the spoke is not parallel to the radial direction of the wheel. To provide for the self-aligning effect of the nipples, the lower bridge comprises a spoke attachment element around the openings through which the spoke nipple can be tilted. In the upper bridge, openings are provided in line with the longitudinal axis of the spoke nipple and spoke. Through these openings, a tool can be inserted in the hollow space during assembly of the wheels to tighten the spoke nipple to the spoke. This tool, which is configured to grip the spoke nipple and is configured to be aligned with the longitudinal axis of the spoke nipple, is said to grip the spoke nipple under an angle of 180°.
However, a disadvantage of such wheels is that the openings in the upper bridge must be arranged out-of-centre of the upper bridge. The remaining portions of the upper bridge, around the openings, are therefore not equally wide across the circumference of the entire rim. In case the wheel is intended to be used for tubeless tires, an airtight seal must be arranged between the tire and the upper bridge. However, the narrow remaining portions next to the openings in the upper bridge may be too narrow to provide an airtight seal with the tire, causing the wheel not to be suitable to be used with tubeless tires.
Additionally, the best aerodynamic properties of wheels are obtained when the side walls are as high as possible and when, as a result, the lower bridge is close to the hub. The problem of tightening the spoke nipples thereby increases, resulting from the higher side walls, but also resulting from the shorter spokes, which need to be under a larger angle with the radial direction of the wheel.
It is an object of the invention to provide a bicycle wheel that lacks the above-mentioned drawback, or at least to provide an alternative.
The invention provides a bicycle wheel for tubeless tires, comprising: - a hub, which has in a centre portion thereof an axis of rotation for the wheel; - a hollow rim, which extends circumferentially around the hub and comprises two opposing side walls, a lower bridge and an upper bridge defining a rim interior, wherein the upper bridge is radially spaced from the lower bridge, and wherein the lower bridge and the upper bridge comprise circumferentially spaced openings; - multiple spokes, comprising an elongate rod, a mounting portion on one end of the rod and an outer thread on another end of the rod, wherein the spokes are circumferentially disposed around the hub, wherein the mounting portions of the spokes are mounted to the hub and wherein the threaded ends extend through the openings in the lower bridge of the rim; and - self-aligning spoke nipples, which are arranged in the rim interior and comprise a nipple body, which has a convex portion on one end thereof and comprises a hole, having an inner thread therein, wherein the threaded ends of the spokes are fastened in the inner threads and wherein the nipples are aligned with longitudinal axes of the spokes, characterized in that the spoke nipples comprise a male fastening part, which is configured to be gripped under an angle by a female fastening tool.
The self-aligning spoke nipples provide that the spokes can extend between the rim and the hub under an angle with the radial direction of the wheel. When mounted in a wheel, the spokes generally alternatingly extend between the rim and one of the two sides of the hub, creating a triangular structure. With such a triangular structure, the strength of the bicycle wheel in the lateral direction increases as compared to when the spokes were to be aligned with the radial direction of the wheel.
In the wheel according to the invention, the spoke nipples can be tightened through openings in the upper bridge with a female fastening tool, of which a longitudinal axis is under an angle with a longitudinal axis of the spoke and the spoke nipple during tightening. Preferably, this angle is any angle between 175° and 185°, but is, in a more preferred embodiment, any angle in between 170° and 190° and is, in a most preferred embodiment, any angle in between 160° and 200°.
The openings in the upper bridge of the rim therefore no longer need to be in line with the longitudinal axis of the spoke nipple, as was the case with previous bicycle wheels having conventional self-aligning spoke nipples.
Since the spoke nipples in a bicycle wheel according to the invention can be fastened under an angle, the openings in the upper bridge can be arranged in a centre portion of the rim. This central placement provides for optimal strength of the wheel and contributes to an airtight sealing between the rim and a tubeless tire, which is configured to be mounted on the wheel around the rim.
Since the openings in the upper bridge, for bicycle wheels according to the present invention, no longer need to be in line with the longitudinal axis of the spoke nipple, the rims can furthermore be produced more universally. This is because the position and direction of alignment of the spoke nipples no longer needs to be accounted for during production of the rim. These universally produced rims can additionally be applied in wheels with various spoke patterns and/or hub widths.
In an embodiment, the fastening part of the spoke nipple has a rounded-off hexagonal shape. Such a fastening part has a facetted perimeter and is adapted to be gripped by a female hexagonal fastening tool, similar to tools that are used for tightening conventional self-aligning spoke nipples. However, the rounded-off shape of the fastening part allows for gripping by the fastening tool under an angle, rather than in line, as needs to be the case with conventional self-aligning spoke nipples.
In another embodiment, the fastening part of the spoke nipple has a similar rounded-off shape with a facetted perimeter. However, the spoke nipple does not have the hexagonal shape with six facets around the perimeter, but may for example have seven or eight facets around the perimeter.
In an embodiment, the lower bridge comprises concave seats, which surround the openings in the lower bridge and correspond to the convex portions of the spoke nipples.
Due to this correspondence, the convex portion of the spoke nipple can slide through the concave seat, such that the spoke nipple is tilted with respect to the rim. However, the spoke nipple remains supported by the seat over substantially the entire convex portion. The ligaments around the openings in the lower bridge therefore remain evenly loaded, such that the risk on potentially fatal stress concentrations around the openings is reduced.
In an embodiment, a tubeless tire is arranged at least partially between the side walls of the wheel. The tire is thereby mounted against the upper bridge along a circumferential interface of the wheel, contributing to an airtight seal. An air pressure difference between an interior of the tire and an exterior thereof is thereby maintained after applying it during the inflation of the tire.
In an embodiment, the side walls are mirror images of each other with respect to a centreline of the upper bridge. In an alternative embodiment, the side walls on each side of the wheel have a different shape.
In an embodiment, the upper bridge comprises side portions, which are arranged adjacent the side walls of the rim and which are non-intermitted by openings in the upper bridge, such that they contribute to the airtight seal between the tire and the upper bridge. When the tire is to be inflated, the tire is not only pressed against the side wall, but also pressed against the side portions of the rim. The sealing properties of the tire against the wheel are thereby increased, since the interfacial area between the tire and the rim is increased.
The invention relates to a self-aligning spoke nipple, which is configured to be mounted in a rim of a bicycle wheel, wherein the nipple comprises: - a nipple body, comprising a hole, having an inner thread therein, which is configured to be fastened to a threaded end of a spoke; and - a convex portion, surrounding the hole, which is configured to be mounted in a substantially corresponding concave seat of the rim, wherein the nipple is configured to be aligned with a longitudinal axis of the spoke upon fastening of the spoke to the nipple, characterized in that the spoke nipple comprises a male fastening part, which can be gripped under an angle by a female fastening tool.
The provision of such a male fastening part provides that the spoke nipples can be fastened, in particular once being arranged in an interior of a rim of a bicycle wheel, with a fastening tool of which a longitudinal direction is not aligned with a longitudinal direction of the spoke nipple. The rim therefore no longer needs to be equipped with upper bridge openings that are disposed in line with a longitudinal direction of the spoke nipple and the spoke. Preferably, the longitudinal direction of the fastening tool is under an angle with the longitudinal direction of the spoke nipple, wherein the angle is any angle between 175° and 185°. In a more preferred embodiment, the angle is any angle in between 170° and 190° and in a most preferred embodiment, the angle is any angle in between 160° and 200°.
For the spoke nipple to be installed properly in the bicycle wheel, the length of the spoke nipple, being the combined length of the fastening part, the nipple body and the convex portion, must be substantially smaller than the height of the rim, between the upper bridge and the lower bridge, in order to allow for enough clearance between the nipple and the upper bridge. This clearance is required to facilitate the receipt of the fastening tool to fasten the spoke nipple to the spoke.
In an embodiment, the fastening part of the spoke nipple has a rounded-off hexagonal shape. A cross-section of the fastening part, perpendicular to a longitudinal axis of spoke nipple, thereby has a hexagonal shape, such that the perimeter of the fastening part is provided with a facetted surface, having six facets.
The female fastening tool is thereby dimensioned to have a corresponding facetted, but inverse, surface such that a torque can be transmitted between the fastening tool and the spoke nipple in order to tighten or to loosen the spoke.
The perimeter of the fastening part is rounded-off at an upper portion and a lower portion thereof, such that a ball-like shape remains. As a result, the female fastening tool, once disposed over the fastening part, can be tilted with respect to the fastening part. However, due to the presence of the facetted perimeter of the fastening part, the torque can still be transmitted between the fastening tool and the spoke nipple.
The female fastening tool may be a conventional socket wrench. Such socket wrenches have an inwardly extending cavity with a hexagonal inner cross section. The usage of a conventional socket wrench provides that the spoke nipples can be fastened, loosened and/or adjusted by cyclists themselves with basic tools, without the need for specialist tools.
In another embodiment, the fastening part of the spoke nipple has a non-hexagonal shape and a different amount of facets, not being six, around its perimeter. In an embodiment, the fastening part of the spoke nipple for example has an octagonal shape, having eight facets around its perimeter.
In an embodiment, the fastening part and the nipple body of the spoke nipple are made of different materials. The nipple body of the spoke nipples is loaded to a relatively high level when fastened to spokes in a bicycle wheel. This is mainly due to a combination of a static pretension load of the spokes in the wheel and a dynamic load during the service life of the bicycle wheel in a moving bicycle.
In the embodiment, the nipple body is therefore made of a relatively strong material, such as for example steel, titanium or aluminium. An additional advantage of using such metallic spoke nipple bodies is that the threads, with which the spoke nipples are fastened to the spokes, can be fabricated relatively easy with conventional taps and dies.
Reducing mass is an important factor in cycle racing, so in order to reduce the amount of mass the fastening part may, in an embodiment, be made of a relatively light material as compared to the material used for the nipple body. Examples of such relatively light materials, which meanwhile possess acceptable strength levels, are polymers and composites.
An embodiment of a bicycle wheel and an embodiment of a self-aligning spoke nipple according to the invention will now be described in further detail, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 shows, in front view, an embodiment of a bicycle wheel according to the invention;
Figure 2 shows the embodiment of the bicycle wheel according to the invention in perspective view;
Figure 3 shows a section view of at least a portion of the embodiment of the bicycle wheel according to the invention;
Figure 4A shows, in perspective view, an embodiment of a self-aligning spoke nipple according to the invention;
Figure 4B shows the embodiment of the spoke nipple according to the invention in side view;
Figure 4C shows a top view of the embodiment of the spoke nipple according to the invention; and
Figure 5 shows, in perspective view, an alternative embodiment of the self-aligning spoke nipple according to the invention.
Figures 1 and 2 show an embodiment of a bicycle wheel according to the invention, denoted by reference numeral 1. The wheel 1 comprises a hub 10, which is arranged in a centre portion of the wheel 1 and has, in a central portion thereof, an axis of rotation (R) for the wheel 1.
The wheel 1 comprises a rim 20, which extends circumferentially around the hub 10. In the tangential direction of the hub 10 and the wheel 1, the rim 20 has a cross section that is substantially the same at each point round its perimeter.
In the embodiment, the wheel 1 comprises spokes 40, which extend between the hub 10 and the rim 20. The spokes 40 are disposed circumferentially around the hub 10 and are attached to mounts 11, 12 of the hub 10. In the embodiment, the hub 10 is wider than the rim 20 in a direction parallel to the axis of rotation (R) of the wheel 1. The mounts 11,12 of the hub 10 therefore project outside the rim 20 in the radial direction of the wheel 1.
The spokes 40 comprise an elongate rod 41, a mounting portion 42 and a threaded end 43, as is shown in figure 3. The mounting portions 42 of the spokes 40 are attached to the mounts 11,12 and the threaded ends 43 of the spokes 40 extend through a lower bridge 21 of the rim 20, in particular through openings 22 in the lower bridge 21.
At fixed distances in the tangential direction of the rim 20, the openings 22 are arranged in the lower bridge 21. Going in the tangential direction, the openings 22 alternatingly receive a spoke 40 from each of the mounts 11,12, such that the spokes 40 are not disposed parallel to the radial direction of the wheel 1.
As a result, as is best seen in figure 1, a triangular shape occurs, formed by the spokes 40 extending from each of the mounts 11,12 towards the rim 20. This triangular structure provides strength of the wheel 1 in lateral directions, e.g. directions that have a component in a direction parallel to the axis of rotation (R) of the wheel 1.
The threaded end 43 of each of the spokes 40 is fastened in a self-aligning spoke nipple 50, thereby connecting the hub 10 to the rim 20. The threaded end 43 of the spoke 40 is received in an inner thread 51 of the spoke nipple 50. This threaded connection provides that the tension in the spoke 40 can be altered by rotating the spoke nipple 50 with respect to the spoke 40. If the spoke nipple 50 is rotated to reduce the relative distance between the hub 10 and the nipple 50, the tension in the spoke 40 is increased, because the rim 20 blocks movement of the nipple 50 towards the rim 20 in conjunction with other spokes under tension, which are mounted to an opposite side of the hub 10.
Figure 3 depicts a cross section of the rim 20, spoke 40 and spoke nipple 50 in a radial plane (A), indicated in figure 2. The rim 20 has a substantially hollow cross section in tangential direction and comprises the lower bridge 21, an upper bridge 23 and two opposing side walls 24, thereby defining a rim interior 25.
The side walls 24 are mirror images of each other with respect to a centreline (C) of the wheel 1. The side walls 24 extend away from the upper bridge 23 in radial direction, such that a tire (not shown in the figures) may be received in the space 30 between the side walls 24 and the surface of the upper bridge 23, facing away from the lower bridge 21.
The lower bridge 21, upper bridge 23 and side walls 24 are an integral part, for example formed by extrusion or by curing various sheets of carbon-fibre fabric with resin.
In an alternative embodiment, the rim may be composed of separate parts for the lower bridge, upper bridge and side walls which were joined, for example by means of welding, during the production of the rim.
The lower bridge 21 has the openings 22 arranged therein in a centre portion, which are spaced in a tangential direction around the circumference of the rim 20. The upper bridge 23 is radially set away from the lower bridge 21 and also has circumferentially spaced openings 26 in a centre portion thereof.
The openings 26 in the upper bridge 23 are arranged in the same radial plane as the openings 22 in the lower bridge 21. In an alternative embodiment, the openings 26 of the upper bridge 23 may be arranged in a different radial plane as the openings 22 in the lower bridge 21.
The opening 26 in the upper bridge 23 shown in Figure 3, is arranged substantially on the centreline (C) of the wheel 1, such that a remaining portion of the upper bridge 23 between the side walls 24 and the opening 26 is equally wide at each side of the opening 26. As a result, this remaining portion is wide enough to contribute, when a tubeless tire is to be arranged on the wheel 1, to an airtight seal between the upper bridge 23 and the tire.
The spoke nipple 50 has a longitudinal axis (L, as in figure 4B) and comprises a nipple body 52, extending along the longitudinal axis (L), and a convex portion 53 on one end of the body 52. The inner thread 51 of the nipple 50 is arranged in a hole 57 of the nipple body 52 and extends in a direction parallel to the longitudinal axis (L) along a substantial portion of the length of the body 52. The spoke nipple 50 contacts the rim 20 with the convex portion 53 in order to evenly transfer a load from the spoke 40, through the nipple 50 towards the rim 20 or vice versa.
The longitudinal axis (L) of the spoke nipple 50 is aligned parallel to the threaded end 43 of the spoke 40, and therefore has the same angle with the radial direction of the wheel 1 as the elongate rod 41 of the spoke 40 has. This placement of the nipple 50 under an angle, as compared to previous wheels, wherein the spokes were bended upon entering the rim interior 25 and wherein the spoke nipple was aligned with the radial direction of the wheel, provides for lower mechanical loading of the spokes 40 and a lower risk of spoke breakage.
The convex portion 53 of the nipple 50 provides for a substantially even load distribution between the spoke 40 and the rim 20 for multiple relative angles between the nipple body 52 and the radial direction of the wheel 1.
The lower bridge 21 comprises concave seats 27, which surround the openings 22 in the lower bridge 21 and receive the convex portions 53 of the nipples 50. A concave inner surface of the concave seat 27 thereby substantially corresponds to a convex outer surface of the convex portion 53 to provide for optimal load transfer between them and for smooth tilting of the nipple 50 with respect to the rim 20.
The concave seat 27 is made from a different material than that of the rim 20. This will reduce the amount of deformation of the seat 27, which could result from the mechanical loading of the spokes 40.
Figures 4A, 4B and 4C show an embodiment of a spoke nipple 50 according to the invention. The spoke nipple 50 comprises a male fastening part 54, which is arranged on an end of the nipple body 52, facing away from the convex portion 53.
The male fastening part 54 is configured to be gripped by a female fastening tool (not shown). The female fastening tool is thereby configured to rotate the nipple 50 with respect to the spoke 40.
The fastening part 54 can be gripped by the fastening tool under an angle, such that the tool does not need to be in-line with the longitudinal axis (L) of the spoke nipple 50, as was the case with previous self-aligning spoke nipples. In the embodiment, the angle is any angle between 175° and 185°.
In another embodiment, the angle is any angle in between 170° and 190° and, in a preferred embodiment, the angle is any angle in between 160° and 200°. In alternative embodiments, the angle can be any angle in between 135° and 225°.
As such, the spoke nipple 50 can be gripped by the fastening tool, which can enter the interior 25 of the rim 20 through the opening 26 in the upper bridge 23, wherein the opening 26 does not need to be in-line with the nipple 50 along the longitudinal axis (L). As a result, the openings 26 may be arranged along the centreline (C) of the wheel 1, making the wheel 1 suitable for receiving tubeless tires in an airtight manner, as described before.
In the embodiment, the fastening part 54 has a rounded-off hexagonal shape. As best seen in figure 4C, a cross section of the fastening part 54, perpendicular to the longitudinal axis (L) of the nipple 50, has a hexagonal shape. The six facets around the perimeter of the male fastening part 54 provide that, once gripped by six corresponding, but inverted, facets of the female fastening tool, a torque can be transmitted between the tool and the nipple 50.
Seen from the side, as in figure 4B, a top portion 55 of the fastening part 54 and an intermediate portion 56, between the fastening part 54 and the body 52, are both rounded off along the perimeter of the nipple 50. With these rounded-off portions, the tool, gripping the fastening part 54, can be tilted with respect to the nipple 50, while the six facets remain in contact. As a result, the torque can still be transmitted between the tool and the nipple 50, despite the tool being tilted with respect to the nipple 50.
In the embodiment of the spoke nipple 50, the fastening part 54 is made of a different material than that of the nipple body 52. The nipple body 52, and in particular the inner thread 51 of the nipple 50, is in the present embodiment made of carbon steel. The hexagonal fastening part 54 is, in the present embodiment, made of plastic, such that the spoke nipple 50 has a lower weight than a nipple that is fully made of steel.
In an alternative embodiment of the spoke nipple 150, as shown in figure 5, the convex portion 153 abuts the hexagonal fastening part 154. The convex portion 153 and the fastening part 154 thereby together form the nipple body 152. The alternative embodiment of the spoke nipple 150 has the advantage over the first embodiment of the spoke nipple 50 that the size is substantially smaller, since it lacks an elongated portion in between the convex portion 53 and the fastening part 54. In the alternative embodiment, the convex portion 153 has, at least partially, a rounded-off hexagonal shape, just like the fastening part 154. At least part of the perimeter of the convex portion 153 is thereby provided with a facetted surface. The perimeter of the convex portion 153 thereby has six facets, substantially corresponding to the six facets of the perimeter of the fastening part 154.

Claims (15)

1. Een fietswiel voor tubeless banden, omvattende: - een naaf, die in een middengedeelte daarvan een rotatie-as voor het wiel heeft; - een holle velg, die zich rond de omtrek van de naaf uitstrekt en twee overstaande zijwanden, een onderbrug en een bovenbrug heeft die een velgbinnenste afbakenen, waarbij de bovenbrug radiaal van de onderbrug afstaat en waarbij de bovenbrug en de onderbrug langs de omtrek verspreide openingen hebben; - meerdere spaken, omvattende een langwerpige staaf, een monteergedeelte aan een uiteinde van de staaf en een buitenschroefdraad aan een ander uiteinde van de staaf, waarbij de spaken langs de omtrek van de naaf zijn aangebracht, waarbij de monteergedeeltes van de spaken aan de naaf zijn gemonteerd en waarbij de schroefdraaduiteindes zich door de openingen in de onderbrug van de velg uitstrekken; en - zelfuitlijnende spaaknippels, die in het velgbinnenste zijn aangebracht en een nippellichaam omvatten, dat een convex gedeelte heeft aan een uiteinde daarvan en een gat omvat, met een binnenschroefdraad daarin, waarbij de schroefdraaduiteindes van de spaken in de binnenschroefdraden worden vastgemaakt en waarbij de nippels zijn uitgelijnd met lengteassen van de spaken, met het kenmerk, dat de spaaknippels een mannelijk vastmaakdeel omvatten, dat is ingericht om onder een hoek te worden aangegrepen door een vrouwelijk vastmaakgereedschap.A bicycle wheel for tubeless tires, comprising: - a hub having a rotation axis for the wheel in a central portion thereof; - a hollow rim extending around the circumference of the hub and having two opposite side walls, a lower bridge and an upper bridge defining a rim inside, wherein the upper bridge is disposed radially from the lower bridge and wherein the upper bridge and the lower bridge have openings spread around the circumference to have; - a plurality of spokes, comprising an elongated rod, a mounting portion at one end of the rod and an external thread at another end of the rod, the spokes being arranged along the periphery of the hub, the mounting portions of the spokes being on the hub mounted and wherein the threaded ends extend through the openings in the lower bridge of the rim; and - self-aligning spoke nipples arranged in the rim interior and comprising a nipple body having a convex portion at one end thereof and including a hole, having an inner thread therein, the threaded ends of the spokes being secured in the inner threads and the nipples are aligned with longitudinal axes of the spokes, characterized in that the spoke nipples comprise a male fastening member adapted to be engaged at an angle by a female fastening tool. 2. Fietswiel volgens conclusies 1, waarbij het vastmaakdeel een afgeronde zeskantige vorm heeft.A bicycle wheel according to claim 1, wherein the fixing part has a rounded hexagonal shape. 3. Fietswiel volgens conclusie 1 of 2, waarbij de hoek iedere hoek is tussen 175° en 185°, bij voorkeur iedere hoek is tussen 170° en 190° en bij meer voorkeur iedere hoek is tussen 160° en 200°.A bicycle wheel according to claim 1 or 2, wherein the angle is any angle between 175 ° and 185 °, preferably any angle is between 170 ° and 190 °, and more preferably any angle is between 160 ° and 200 °. 4. Fietswiel volgens een van de voorgaande conclusies, waarbij de openingen in de bovenbrug en onderbrug in een middelgedeelte daarvan zijn aangebracht, waarbij de langwerpige staven van de spaken onder een hoek staan met de radiale richting van het wiel, waarbij de convexe gedeeltes van de spaaknippels over de openingen in de onderbrug zijn aangebracht, waarbij de lichamen van de spaaknippels parallel aan de spaken zijn uitgelijnd en waarbij het vrouwelijke vastmaakgereedschap het velgbinnenste kan binnengaan door de openingen in de bovenbrug.A bicycle wheel according to any one of the preceding claims, wherein the openings in the upper bridge and lower bridge are arranged in a middle portion thereof, wherein the elongated bars of the spokes are at an angle with the radial direction of the wheel, the convex portions of the wheel spoke nipples are provided over the openings in the lower bridge, the bodies of the spoke nipples being aligned parallel to the spokes and wherein the female fastening tool can enter the rim interior through the openings in the upper bridge. 5. Fietswiel volgens een van de voorgaande conclusies, waarbij de onderbrug concave zittingen omvat, die de openingen in de onderbrug omringen en overeenkomen met de convexe gedeeltes van de spaaknippels.A bicycle wheel according to any one of the preceding claims, wherein the lower bridge comprises concave seats which surround the openings in the lower bridge and correspond to the convex portions of the spoke nipples. 6. Fietswiel volgens een van de voorgaande conclusies, waarbij een tubeless band ten minste gedeeltelijk tussen de zijwanden van de velg is aangebracht en waarbij een luchtdichte afdichting wordt gevormd tussen de bovenbrug en de band.A bicycle wheel according to any one of the preceding claims, wherein a tubeless tire is arranged at least partially between the side walls of the rim and wherein an airtight seal is formed between the upper bridge and the tire. 7. Fietswiel volgens conclusie 6, waarbij de bovenbrug zijgedeeltes omvat, die aangrenzend aan de zijwanden van de velg zijn aangebracht en die niet onderbroken zijn door de openingen in de bovenbrug, zodat deze bijdragen aan de luchtdichte afdichting tussen de band en de bovenbrug.A bicycle wheel according to claim 6, wherein the upper bridge comprises side portions which are arranged adjacent to the side walls of the rim and which are not interrupted by the openings in the upper bridge, so that they contribute to the airtight seal between the tire and the upper bridge. 8. Fietswiel volgens een van de voorgaande conclusies, waarbij het vastmaakdeel en het nippellichaam van verschillende materialen zijn gemaakt.A bicycle wheel according to any one of the preceding claims, wherein the fixing part and the nipple body are made of different materials. 9. Fietswiel volgens een van de voorgaande conclusies, waarbij het convexe gedeelte aan het vastmaakdeel grenst.A bicycle wheel according to any one of the preceding claims, wherein the convex portion adjoins the fixing member. 10. Zelfuitlijnende spaaknippel, die ingericht om te worden gemonteerd in een velg van een fietswiel, waarbij de nippel omvat: - een nippellichaam, omvattende een gat, met een binnenschroefdraad daarin, die is ingericht om vast te worden gemaakt aan een schroefdraaduiteinde van een spaak; en - een convex gedeelte, het gat omgrenzend, die is ingericht om de te worden gemonteerd in een in hoofdzaak overeenkomende concave zitting van de velg, waarbij de nippel is ingericht om uit te worden gelijnd met een lengteas van de spaak bij het vastmaken van de spaak aan de nippel, met het kenmerk, dat de spaaknippel een mannelijk vastmaakdeel omvat, dat onder een hoek kan worden aangegrepen door een vrouwelijk vastmaakgereedschap.A self-aligning spoke nipple adapted to be mounted in a rim of a bicycle wheel, the nipple comprising: - a nipple body comprising a hole, having an inner thread therein, which is adapted to be secured to a threaded end of a spoke ; and - a convex portion surrounding the hole, which is adapted to be mounted in a substantially corresponding concave seat of the rim, the nipple being adapted to be aligned with a longitudinal axis of the spoke when fastening the spoke on the nipple, characterized in that the spoke nipple comprises a male fixing part which can be engaged at an angle by a female fixing tool. 11. Spaaknippel volgens conclusie 10, waarbij de hoek iedere hoek is tussen 175° en 185°, bij voorkeur iedere hoek is tussen 170° en 190° en bij meer voorkeur iedere hoek is tussen 160° en 200°.The spoke nipple of claim 10, wherein the angle is any angle between 175 ° and 185 °, preferably any angle is between 170 ° and 190 °, and more preferably any angle is between 160 ° and 200 °. 12. Spaaknippel volgens conclusies 10 of 11, waarbij het vastmaakdeel een afgeronde zeskantige vorm heeft.The spoke nipple of claim 10 or 11, wherein the securing member has a rounded hexagonal shape. 13. Spaaknippel volgens conclusie 12, waarbij het vrouwelijke vastmaakgereedschap een conventionele dopsleutel kan zijn.The spoke nipple of claim 12, wherein the female fastening tool can be a conventional socket wrench. 14. Spaaknippel volgens een van de conclusies 10-13, waarbij het vastmaakdeel en het nippellichaam van verschillende materialen zijn gemaakt.The spoke nipple of any one of claims 10-13, wherein the fastening member and the nipple body are made of different materials. 15. Spaaknippel volgens een van de conclusies 10-14, waarbij het convexe gedeelte aan het vastmaakdeel grenst.The spoke nipple of any one of claims 10-14, wherein the convex portion adjoins the attachment member.
NL2016681A 2016-04-26 2016-04-26 Bicycle wheel having a spoke nipple, spoke nipple. NL2016681B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4244989C2 (en) * 1991-10-16 2001-06-28 Textron Inc Fastener driving tool assembly
DE102007040271A1 (en) * 2006-08-31 2008-03-06 Dt Swiss Ag nipples
EP2420354A1 (en) * 2009-04-16 2012-02-22 Universal Ball Head, S.L. Structure for coupling between a screw head and a tightening tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4244989C2 (en) * 1991-10-16 2001-06-28 Textron Inc Fastener driving tool assembly
DE102007040271A1 (en) * 2006-08-31 2008-03-06 Dt Swiss Ag nipples
EP2420354A1 (en) * 2009-04-16 2012-02-22 Universal Ball Head, S.L. Structure for coupling between a screw head and a tightening tool

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