GB2595915A

GB2595915A - Mudguard

Info

Publication number: GB2595915A
Application number: GB2008895.1A
Authority: GB
Inventors: Grahame Walker Ian
Original assignee: Rockguardz Ltd
Current assignee: Rockguardz Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-12-15
Anticipated expiration: 2040-06-11
Also published as: GB202008895D0; GB2595915B

Abstract

A detachable mudguard (10, figure 1) for a bicycle (1, figure 11) which comprises a set of segments including a first segment 100 and a second segment 200. The first segment has a first end 1002, a second end 1004 and also comprises a first portion of a first attachment member 1008 for attachment to a frame (2, figure 11) of the bicycle. The second segment has a first end 2002, a second end 2004 and a second line 2006 between the two ends. The second segment comprises a set of sub-segments including a first sub-segment 2010 proximal the first end, wherein the first sub-segment defines a first arcuate section of the second line. The mudguard is arrangeable in a first removable arrangement, where the first segment is attached to the frame of the bicycle and the first segment and the second segment are mutually uncoupled; and a second extendible arrangement where the first segment is attached to the frame of the bicycle and the first segment and the second segment are mutually coupled; where the second segment extends around a wheel assembly of the bicycle.

Description

MUDGUARD

[0001] The present disclosure relates to a mudguard for a bicycle, a kit comprising a mudguard and to a method of installing a mudguard.

BACKGROUND

[0002] Bicycle riding is a popular outdoor sport. Bicycle riding includes road cycling, cyclocross and mountain biking. Mountain biking includes multiple disciplines such as: cross country, trail riding, Enduro, downhill, freeride and dirt jumping. Mountain bikers typically ride on off-road trails such as singletrack.

[0003] Poor weather and ground conditions can affect bicycle performance and rider comfort. In nearly all instances of bicycle riding, but particularly in mountain biking, it is desirable to guard the bicycle and its rider from water, grit, dirt and mud. Mudguards are often installed on bicycles for this purpose.

[0004] Mudguards for bicycles are known. Generally, it is desirable to use a mudguard suited to the weather and ground conditions for a particular bicycle. However, these conditions may not be known in advance or may change, for example during a ride. Further, known mudguards providing sufficiently adequate protection are penalised by increased weight and/or complexity. Hence, there is a need to improve mudguards.

[0006] It is an object of the present invention to provide an improved mudguard, kit comprising a mudguard and/or method of installing a mudguard and/or to address one or more of the problems discussed above, or discussed elsewhere, or to at least provide an alternative mudguard, kit comprising a mudguard and/or method.

SUMMARY OF THE INVENTION

[0006] According to the present invention there is provided a mudguard, kit and method as set forth in the appended claims. Other features of the invention will be apparent from the dependent claims, and the description which follows.

[0007] According to a first aspect of the present invention the is provided a mudguard for a bicycle, wherein the mudguard comprises: a set of segments including a first segment and a second segment; wherein the first segment, having a first end, a second end and defining a first line therebetween, comprises: a first portion of a first attachment member for attachment thereof to a frame of the bicycle; wherein the second segment, having a first end, a second end and defining a second line therebetween, comprises a set of sub-segments including a first sub-segment proximal the first end, wherein the first sub-segment defines a first arcuate section of the second line; wherein the mudguard is arrangeable, for example repeatedly, in: a first arrangement, wherein the first segment is attached to the frame of the bicycle and wherein the first segment and the second segment are mutually uncoupled; and a second arrangement, wherein the first segment is attached to the frame of the bicycle, wherein the first segment and the second segment are mutually coupled and wherein the second segment extends, at least in part, around a wheel assembly of the bicycle; wherein the mudguard is arranged to move from the first arrangement to the second arrangement by mutually coupling the first segment and the second segment.

[0008] In this way, a mudguard is provided having a couplable extender piece, provided by the second segment, that facilitates extension of the mudguard when necessary or desirable to the user of the mudguard. That is, providing a mudguard having a first segment and second segment mitigates some of the complexities involved in mudguard installation, and allows for a more protective mudguard to be provided when necessary or desirable to the mudguard by mutually coupling the segments. Mutually coupling the segments also facilitates easier removal or replacement of the second segment, which is beneficial as removal and replacement may be frequently necessary due to changing weather and ground conditions.

The second segment having a first arcuate section is an improved mudguard shape that better protects the rider and the bicycle itself when the mudguard is in use.

[0009] The bicycle may be any suitable bicycle, but particularly a mountain bicycle. The mountain bicycle may be single suspension, or "hard-tail". That is, a bicycle having suspension at the front but not at the rear. The mountain bicycle may be full suspension. That is, a bicycle having suspension at both the front and rear. The mountain bicycle may comprise a 26" wheel, a 27.5" (650B), 29" wheel, 27.5+ wheel or a 29"+ wheel. The mudguard may be sized such that it is suitable for one or more of the aforementioned wheel sizes.

[0010] In one example, the mudguard is formed from injection moulded plastic. In a particular advantageous example, the first segment is formed from carbon fibre, and the second segment is formed from injection moulded plastic. Carbon fibre is strong but light. Injection moulded plastic is able to withstand torsional forces and vibrations.

[0011] In one example, the first sub-segment has a curved cross-section transverse to the second line.

[0012] In this way, the mudguard is shaped to conform to the wheel assembly of the bicycle, providing improved protection to the rider and the bicycle itself.

[0013] In one example, the set of sub-segments includes a second sub-segment proximal the second end of the second segment, wherein the second sub-segment defines a first linear section of the second line and/or has a linear cross-section transverse to the second line.

[0014] In this way, the second sub-segment may not follow the curvature of the wheel assembly, in particular the tyre. This can provide improved protection from mud, water or other matter thrown up by the wheel assembly. Furthermore, the second sub-segment defining a first linear section of the second line and/or having a linear cross-section transverse to the second line provides a degree of flexibility to the second sub-segment. Advantageously, when the mudguard is installed, vibration of the mudguard can cause the second sub-segment to flex to contact the wheel assembly, in particular the tyre surface, thereby acting to dislodge or remove mud or other debris from the wheel assembly.

[0015] In one example, a width of the second sub-segment transverse to the second line is greater than a width of the first sub-segment transverse to the second line.

[0016] In this way, a wider section is provided near the rearward extent of the bicycle wheel assembly. This acts to protect the rider from the considerable spray that originates in this region. This additionally improves flexibility of the second sub-segment.

[0017] In one example, a mechanical property, for example a stiffness, of the second sub-segment of the second segment is less than a corresponding mechanical property, for example a stiffness, of the first sub-segment of the second segment. In other examples, the mechanical property may be rigidity, Young's modulus, or the like.

[0018] In this way, flexibility of the second sub-segment is provided, which is advantageous for reasons noted above.

[0019] In one example, in the second arrangement, the first segment and the second segment are mutually coupled proximal the second end and the first end, respectively, thereof.

[0020] In this way, almost all of the length of the second segment extends around the wheel assembly of the bicycle, providing maximal protection to the bicycle rider and the bicycle itself.

[0021] In one example, in the second arrangement, the first segment and the second segment at least partly overlap. In one example, the second segment may be arranged to lie atop the first segment.

[0022] In this way, the segments are configured to provide support to one another, which mitigates a need for additional supporting means. In this way, complexity is reduced, and installation is simplified.

[0023] In one example, an outer surface of the first segment and an inner surface of the second segment are shaped to correspondingly conform.

[0024] In this way, the first segment is configured to provide support to the second segment, and allows the weight of the second segment to be spread across the first segment, ensuring that the mudguard is sturdy in construction.

[0025] In one example, the first segment comprises one or more apertures, and second segment comprises one or more apertures, and wherein, in the second arrangement, the apertures of the first segment align with the apertures of the second segment.

[0026] In this way, attachment via the apertures is facilitated. Such a construction provides for a simple yet robust means of attachment.

[0027] In one example, the first segment and second segment are mutually coupled by coupling elements configured to be inserted into the apertures.

[0028] In this way, simple yet robust attachment is provided for.

[0029] In one example, the coupling elements are releasable coupling elements, for example releasable cable ties.

[0030] In this way, the coupling elements may be readily removed, facilitating quick and simple installation, which is paramount to the rider. Furthermore, in this way, the coupling elements are reusable.

[0031] In one example, the first segment comprises a first part of a first mating member proximal the second end, the second segment comprises a second part of the first mating member proximal the first end, the second part of the first mating member for mating with the first part; wherein the mudguard is arranged to move from the first arrangement to the second arrangement by mutually mating the first part of the first mating member and the second part of the first mating member.

[0032] In this way, simple yet secure, robust and repeatable mating of the first and second segments is facilitated.

[0033] In one example, the first part and second part of the first mating member are configured to mate with a sliding fit. The second part of the first mating member may be configured to slidable receive the first part of the first mating member. In one example, the first part of the first mating member comprises and/or is a projection provided on the second end.

In one example, the second part of the first mating member comprises and/or is a slot provided on the second segment for receiving the first part of the first mating member therein. The slot may be comprised in a jaw.

[0034] In one example, mutually mating the first part of the first mating member and the second part of the first mating member comprises aligning the apertures of the first segment with the apertures of the second segment.

[0035] In this way, alignment of apertures is facilitated, thus facilitating quick and easy attachment of the segments, and thus mudguard installation.

[0036] In one example, a length of the second line is greater than or equal to a length of the first line. In one example, the second line is between 40cm and 80cm in length. In one example, the first line is between 10cm and 40cm in length. In one example, the first segment is between 10cm -40cm in length, 3cm -15cm in width and/or 0.05cm -0.5cm in thickness. In one example, the second segment is between 40cm -80cm in length, 3cm -15cm in width and/or 0.05cm -0.5cm in thickness.

[0037] Such a construction provides improved mudguard shaping and dimensions. In this way, the second segment provides an extender piece which extends suitably around the bicycle wheel assembly, to provide optimal protection to the rider and the bicycle.

[0038] In one example, the first segment comprises a set of sub-segments including a first sub-segment proximal the second end, wherein the first sub-segment defines a first arcuate section of the first line; the first arcuate section of the first line is a circular arc, having a central angle in a range from 5 to 30 degrees; and the second arcuate section of the second line is a circular arc, having a central angle in a range from 15 to 160 degrees.

[0039] The first segment comprising an arcuate sub-segment provides for improved shaping of the mudguard to conform to the wheel assembly. This improves the level of protection provided by the mudguard to the rider and bicycle. Additionally, the central angles given have been found to provide optimal protection, and other advantages. For example, the smaller central angle of the arcuate section of the first sub-segment ensures a shorter, and thus lightweight, first segment, whilst being suitable to protect the bicycle bottom bracket from mud, water and other matter thrown up by the wheel assembly. Furthermore, the larger central angles of the arcuate section of the second line provides a construction in which the second segment extends considerably around the wheel assembly, thus protecting the rider from spray emanating from the wheel assembly.

[0040] According to a second aspect of the present invention there is provided a kit comprising a mudguard according to the first aspect and one or more releasable coupling elements for coupling the first segment to the second segment and/or one or more attachment elements for attachment to the bicycle frame.

[0041] In this way, a kit is provided having a mudguard and releasable coupling elements and/or attachment elements, thus facilitating simple yet robust coupling and/or attachment, simplifying mudguard installation and reducing complexity.

[0042] According to a third aspect of the present invention there is provided a method of installing a mudguard according to the first aspect or a kit according to the second aspect, the method comprising: attaching the first segment to the frame of the bicycle; and coupling the second segment to the attached first segment.

[0043] In one example, the method comprises uncoupling the second segment from the attached first segment.

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] For a better understanding of the invention, and to show how embodiments of the same may be carried into effect, reference will now be made, by way of example only, to the accompanying diagrammatic drawings in which: Fig. 1 shows a perspective view of a mudguard according to an exemplary embodiment, comprising a mutually coupled first segment and second segment; Fig. 2 shows a perspective view of the mudguard of Figure 1; Fig. 3 shows a side view of the mudguard of Figure 1; Fig. 4 shows a perspective view of the first segment of the mudguard of Figure 1; Fig. 5 shows a perspective view of the first segment of Figure 4; Fig. 6 shows a side view of the first segment of Figure 4; Fig. 7 shows a plan view of the inner surface of the first segment of Figure 4; Fig. 8 shows a perspective view of the second segment of the mudguard of Figure 1; Fig. 9 shows a side view of the second segment of Figure 8; Fig. 10 shows a plan view of the second segment of Figure 8; Fig. 11 shows a bicycle having a mudguard according to an exemplary embodiment installed in a first arrangement; Fig. 12 shows a bicycle having a mudguard according to an exemplary embodiment installed in a second arrangement; and Fig. 13 shows a method of installing a mudguard according to an exemplary embodiment.

DETAILED DESCRIPTION

[0045] Referring to the figures, a mudguard 10 for a bicycle 1 is shown.

[0046] The mudguard 10 comprises a set of segments including a first segment 100 and a second segment 200. The first segment 100, having a first end 1002, a second end 1004 and defining a first line 1006 therebetween, comprises: a first portion of a first attachment member 1008 for attachment thereof to a frame of the bicycle 1. The second segment 200, having a first end 2002, a second end 2004 and defining a second line 2006 therebetween, comprises a set of sub-segments including a first sub-segment 2010 proximal the first end 2002, wherein the first sub-segment 2010 defines a first arcuate section of the second line 2006. The mudguard is arrangeable, for example repeatedly, in: a first arrangement, wherein the first segment 100 is attached to the frame of the bicycle 1 and wherein the first segment 100 and the second segment 200 are mutually uncoupled; and a second arrangement, wherein the first segment 100 is attached to the frame of the bicycle 1, wherein the first segment 100 and the second segment 200 are mutually coupled and wherein the second segment 200 extends, at least in part, around a wheel assembly of the bicycle 1. The mudguard 10 is arranged to move from the first arrangement to the second arrangement by mutually coupling the first segment and the second segment 200.

[0047] The mudguard 10 is for installation on the bicycle 1 to guard the bicycle 1 and its rider from water, grit, dirt and mud, which is thrown up by the wheel assembly comprising tyre and wheel. The mudguard 10 comprises an outer surface 12 and an inner surface 14. When the mudguard 10 is installed on the bicycle 1, the outer surface 12 faces away from the wheel assembly, and the inner surface 14 faces toward the wheel assembly.

[0048] The first segment 100 is shown in greater detail in Figures 4 to 7. The first segment has an outer surface 12a and an inner surface 14a. The first line 1006 is a mirror line extending the length of the first segment 100 between the first end 1002 and the second end 1004.

[0049] The first segment 100 comprises a set of arcuate, or "curved", sub-segments. The sub-segments are sub-segments of the first line 1006. The sub-segments include a first sub-segment 1010 and a second sub-segment 1012.

[0050] The first sub-segment 1010 defines a first arcuate section of the first line 1006. The first sub-segment 1010 is a circular arc in cross section along the length of the first sub-segment 1010, the circular arc having a central angle of 10 degrees. The first sub-segment 1010 extends along the first segment 100 from the first end 1002. The first sub-segment 1010 is also arcuate across its width. That is, the first sub-segment 1010 is arcuate in a direction transverse to the first line 1006. The first sub-segment is 18cm in length, 8cm in width and 0.15cm in thickness.

[0051] The second sub-segment 1012 defines a second arcuate section of the first line 1006. The second sub-segment 1012 is a circular arc in cross section along the length of the second sub-segment 1012, the circular arc having a central angle of 5 degrees. The second sub-segment 1012 is also arcuate across its width. That is, the second sub-segment 1012 is arcuate in a direction transverse to the first line 1006.

[0052] The second sub-segment 1012 extends along the first segment 100 from the second end 1004 to the proximal end of the first sub-segment 1010, and transitions into the proximal end of the first sub-segment. The transition from the second sub-segment 1012 into the first sub-segment 1010 is a smooth, downward, transition, thereby forming a ridge 1014. The second sub-segment 1012 is 11cm in length, 8cm in width and 0.15cm in thickness.

[0053] The first segment 100 comprises a first portion of a first attachment member 1008 for attachment thereof to the seat stays of the bicycle 1. The first attachment member 1008 comprises a pair of arms 1018. The arms 1018 are parallel and extend from the sides of the second sub-segment 1012. The arms 1018 extend on the side of the inner surface 14a in a direction substantially perpendicular to the first line 1006. The arms 1018 are 7cm long. Each arm 1018 comprises a pair of attachment apertures 1020 extending therethrough, proximal the end of each arm 1018. The attachment apertures 1020 facilitate attachment to the seat stays of the bicycle 1.

[0054] The first sub-segment 1010 and second sub-segment 1012 also comprise apertures extending therethrough. Two alignment apertures 1022 extend through the second sub-segment 1012. Additionally, three rows of attachment apertures 1020 also extend along the first segment 1010, each row parallel the first line 1006. The central row runs along the first line 1006. The outer rows are equidistant either side of the first line 1006. The rows of attachment apertures 1020 provide attachment apertures in various locations to facilitate attachment to a variety of bicycle frame designs. For example, where the bicycle frame to which the first segment 100 is to be attached comprises a cross-brace extending between the seat stays, the rows of attachment apertures 1020 may facilitate attachment thereto by virtue of an attachment element provided through appropriately located attachment apertures 1020.

[0055] As can be seen in Figures 3 and 7, the second sub-segment 1012 has an increased thickness in the region between the alignment apertures 1022, forming spine 1024 for enhancing strength in said region.

[0056] Whilst installation of the mudguard 1 will be described in greater detail below, briefly, when installed, the first segment 100 is positioned between the seat stays with the arms 1018 extending adjacent to, and in contact with, the seat stays. The first segment 100 is orientated so that the inner surface 14a of the first segment 100 faces toward the wheel assembly, and the outer surface 12a of the first segment 100 faces away from the wheel assembly. In this way, the inner surface 14a of the first segment 100 forms part of inner surface 14 of the mudguard 10, and outer surface 12a of the first segment 100 forms part of outer surface 12 of the mudguard 10. Each arm 1018 is attached to the respective seat stay by an attachment element, which is a releasable cable tie, threaded through the attachment apertures 1020 in the arm 1018 and tied around the adjacent seat stay to secure the arm 1018 in place.

[0057] Furthermore, where the bicycle frame to which the mudguard 100 is attached comprises a cross-brace extending between the seat stays 502, the mudguard 100 is positioned so that the cross brace is on the outer surface 12a of the first segment, in contact therewith. The first segment 100 is attached to the cross-brace by additional releasable cable ties threaded through the attachment apertures 1020 in the first sub-segment 1010 and tied around the cross-brace.

[0058] The first segment 100 is 29cm in length, 8cm in width and 0.15cm in thickness. In one exemplary embodiment, the first segment 100 is formed from injection-moulded plastic. In another exemplary embodiment, the first segment 100 is formed from carbon fibre. The skilled person will appreciate that, owing to the shape and size of the first segment 100, material from which the first segment 100 is formed, and other features of the construction described above, the first segment 100 is lightweight and unobtrusive, whilst being suitable to provide a base level of protection to the bicycle rider and bicycle itself. Because of this, a bicycle rider may deem it suitable to leave the first segment 100 permanently or semi-permanently attached to the bicycle frame.

[0059] The second segment 200 is shown in greater detail in Figures 8 to 10. The second segment has an outer surface 12b and an inner surface 14b. The second line 2006 is a mirror line extending the length of the second segment 200 between the first end 2002 and the second end 2004.

[0060] As mentioned above, the second segment 200 comprises a set of sub-segments. The sub-segments are sub-segments of the second line 2006. The sub-segments include the first sub-segment 2010 and a second sub-segment 2012.

[0061] The first sub-segment 2010 defines a first arcuate section of the second line 2006. The first sub-segment 2010 is a circular arc in cross section along the length of the first sub-segment 2010, the circular arc having a central angle of 45 degrees. The first sub-segment 2010 extends along the second segment 200 from the first end 2002. The first sub-segment 2010 is also arcuate across its width. That is, the first sub-segment 2010 is arcuate in a direction transverse to the second line 2006. In this way, when installed, the first sub-segment 2010 conforms to the wheel assembly, to provide optimal protection to the bicycle rider. The first sub-segment is 45cm in length, 8.5cm in width and 0.15cm in thickness.

[0062] The second sub-segment 2012 defines a first linear section of the second line 2006.

The second sub-segment 2012 is also linear across its width, that is, transverse to the second line 2006. In this way, the second sub-segment is a planar, or "flat", section of the second segment 200.

[0063] The second sub-segment 2012 extends along the second segment 200 from the second end to the proximal end of the first sub-segment 2010. The second sub-segment 2012 is 22.5cm in length, 11cm in width and 0.1cm in thickness. Thus, the second sub-segment 2012 flares outwardly from the first sub-segment 2010 as it extends away from the first sub-segment 2010. For the avoidance of doubt, the width of the first sub-segment 2010 is substantially constant along its length.

[0064] The second sub-segment 2012 is less stiff than the first sub-segment 2010. In this exemplary embodiment, this is because the second sub-segment 2012 is planar, rather than arcuate. It is thus relatively flexible compared with the first sub-segment 2010. Nevertheless, this can also be achieved by reducing the thickness of the second sub-segment 2012, or by manufacturing the second sub-segment 2012 from a flexible material. In this way, a mechanical property, in this case stiffness, of the second sub-segment 2012 is less stiff than the first sub-segment 2010.

[0065] Whilst installation of the mudguard 1 will be described in greater detail below, briefly, when installed, the second segment 200 is coupled to the first segment 100 which is attached to the bicycle frame. When coupled in this manner, the second segment 200 is oriented so that the inner surface 14b of the second segment 200 faces toward the wheel assembly, and the outer surface 12b faces away from the wheel assembly. In this way, the inner surface 14b of the second segment 200 forms part of the inner surface 14 of the mudguard 10, and the outer surface 12b of the second segment 200 forms part of the outer surface 12 of the mudguard 10.

[0066] The second segment is 67.5cm in length, 8.5cm in width in the first sub-segment and 11cm in width in the second sub-segment and 0.15cm in thickness in the first sub-segment and 0.1cm in thickness in the second subsegment That is, the length of the second line 2006 is greater than the length of the first line 1006. In this exemplary embodiment, the second segment is formed from injection-moulded plastic. Furthermore, as may be understood from the dimensions of the second segment 200, the second segment 200 is longer than the first segment 100. The skilled person will appreciate that, owing to the shape and size of the second segment 200, material from which the second segment 200 is formed, and other features of the construction described above, the second segment 200 provides an extender piece for coupling to the first segment 200, such that enhanced protection may be provided to the bicycle rider and bicycle itself. The second segment 200 may be coupled to the first segment 100 temporarily, when necessary or desirable to the bicycle rider, for example to provide enhanced protection during adverse weather or ground conditions.

[0067] Owing to the less stiff planar second sub-segment 2012 of the second segment 200 (which may result from its shaping, thickness or material from which it is formed), when the mudguard 10 is in use, bicycle travel over rough ground causes the second sub-segment 2012 to vibrate, resulting in variation of the separation between the wheel assembly and the second sub-segment 2012. In some situations of use, the second sub-segment 2012 may come into contact with the wheel assembly, thereby acting to dislodge or remove mud or other debris from the wheel assembly.

[0068] The first sub-segment 2010 comprises two alignment apertures 2022 extending therethrough, provided proximal the first end 2004. The two alignment apertures 2022 of the second segment 200 align with the two alignment apertures 1022 of the first segment 100 when the first segment 100 and second segment 200 are coupled.

[0069] A first mating member 300 is provided to facilitate mating of the first segment 100 and second segment 200. The first mating member 300 is configured to mate with a sliding fit. As shown in Figures 4 to 7, the first mating member 300 comprises a first part 302, which is a portion of the second sub-segment 1012 of the first segment 100, proximal the second end 1004. As shown in Figures 8 to 10, the first mating member 300 further comprises a second part 304, which is a jaw 304 projecting from the inner surface 14b of the first sub-segment 2010 of the second segment 200. The jaw 204 opens toward the first end 2004 of the second segment 200. The jaw 304 defines a slot 3002 for receiving the first part 302 of the first mating member 300. The jaw 304 comprises ribs 3004 on the side opposite the slot 3002, for proving structural support. The jaw 304 is configured to receive the first part 302 in the slot 3002 with a sliding fit.

[0070] Mating of the first segment 100 and second segment 200 by first mating member 300 aligns alignment apertures 1022 of the first segment 100 with alignment apertures 2022 of the second segment 200.

[0071] Referring to Figure 11, the first segment 100 is shown attached to the frame of the bicycle 1. The first segment 200 is attached to the frame of the bicycle 1, between the seat stays 2, as described above. Releasable cable ties (not shown) are used to attach the arms 1018 to the seat stays 2, and the first sub-segment 1010 to the cross-brace. Particularly advantageously, in this exemplary embodiment, the releasable cable ties are rubber-lined to mitigate abrasive damage to the frame of the bicycle 1. In this way, the mudguard 1 is arrangeable in the first arrangement, wherein the first segment 100 is attached to the frame of the bicycle 1 and wherein the first segment 200 and second segment 200 are mutually uncoupled.

[0072] Referring to Figure 12, following attachment of the first segment 100 to the frame of the bicycle 1, the second segment 200 is then mutually coupled to the first segment 100. As shown in the figure, the second segment 200 extends around the rear wheel assembly 4 of the bicycle 1. In this way, the mudguard 1 is arrangeable in the second arrangement, wherein the first segment 100 is attached to the frame of the bicycle 1, and wherein the first segment 100 and second segment 200 are mutually coupled and wherein the second segment 200 extends around the rear wheel assembly of the bicycle 1.

[0073] In the second arrangement, the second segment 200 lies atop the first segment 100 in the region where the segments 100, 200 overlap. Thus, the first segment 100 supports the weight of the second segment 200. The outer surface 12a of the first segment 100 and the inner surface 14b of the second segment 200 are shaped to correspondingly conform in the overlapping region. In this way, the weight of the second segment 200 is spread across the overlapping region. The first mating member 300 is mated -that is, the second end 1004 of the first segment 100 is received in the slot 3002.

[0074] Mutual coupling is facilitated by a releasable coupling element, which is a releasable coupling cable tie (not shown), identical in construction to the releasable attachment element.

The releasable coupling cable tie is inserted in one direction through one pair of aligned alignment apertures 1022, 2022, and in the other direction through the other pair of aligned alignment apertures 1022, 2022. The ends of the cable fie are tied together over the spine 1024. Securing the releasable coupling element mutually couples the first segment 100 and the second segment 200. Whilst in this exemplary embodiment, the releasable coupling element is a releasable cable fie, it will be apparent to the skilled person that a coupling element is intended to refer to any suitable coupling mechanism between the first and second segment and may be provided by the first mating member itself, for example, in a clip-like arrangement or similar.

[0075] The mudguard 10 is repeatedly arrangeable in the first arrangement and the second arrangement by releasing and/or removing the coupling element. The mudguard 100 is arranged to move from the first arrangement to the second arrangement by mutually coupling the first segment 100 and the second segment 200. That is, by coupling using a releasable cable tie, or other coupling element, the mudguard 100 moves from the first arrangement to the second arrangement.

[0076] Whilst mating of the first mating member 300 is described separately to coupling, it will be appreciated that mating of the first mating member 300 may form part of the process of mutually coupling the first segment 100 and second segment 200.

[0077] Referring now to Figure 13, a method of installing a mudguard 10 is shown. Step 5000 comprises attaching the first segment 100 to the frame of the bicycle. Step 5002 comprises coupling the second segment 200 to the attached first segment. An optional step 5004 comprises uncoupling the second segment 200 from the attached first segment 100.

[0078] When attaching the first segment 100 to bicycle frames of a certain design, it may be necessary to trim the first end 102 of the first segment 100 to provide clearance between the first end 102 and the bottom bracket. Cutting lines (not shown) may be provided perpendicular to the first line 1006 and parallel to the first end 102 to facilitate this. Furthermore, the first segment 100 proximal to the first end may have a suitable shear strength to facilitate cutting.

[0079] In summary, a mudguard 10 comprising a first segment 100 and a second segment 200 is provided. In a first arrangement, attachment of the first segment 100 to the frame of the bicycle provides a lightweight and unobtrusive mudguard portion, which may be permanently or semi-permanently attached to the bicycle. The first segment provides a base level of protection to the frame of the bicycle 1 in the region of the bottom bracket and seat stays. In a second arrangement, the mutually coupled first segment 100 and the second segment 200 provides an extended mudguard which extends around the rear wheel assembly of the bicycle 1. The second arrangement therefor provided enhanced protection of the bicycle and its rider in adverse weather conditions.

[0080] Although a few preferred embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications might be made without departing from the scope of the invention, as defined in the appended claims.

[0081] Although the example embodiments have been described with reference to the components, modules and units discussed herein, such functional elements may be combined into fewer elements or separated into additional elements. Various combinations of optional features have been described herein, and it will be appreciated that described features may be combined in any suitable combination. In particular, the features of any one example embodiment may be combined with features of any other embodiment, as appropriate, except where such combinations are mutually exclusive. Throughout this specification, the term "comprising" or "comprises" means including the component(s) specified but not to the exclusion of the presence of others.

[0082] Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

[0083] All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

[0084] Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

[0085] The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

CLAIMS1. A mudguard for a bicycle, wherein the mudguard comprises: a set of segments including a first segment and a second segment; wherein the first segment, having a first end, a second end and defining a first line therebetween, comprises: a first portion of a first attachment member for attachment thereof to a frame of the bicycle; wherein the second segment, having a first end, a second end and defining a second line therebetween, comprises a set of sub-segments including a first sub-segment proximal the first end, wherein the first sub-segment defines a first arcuate section of the second line; wherein the mudguard is arrangeable, for example repeatedly, in: a first arrangement, wherein the first segment is attached to the frame of the bicycle and wherein the first segment and the second segment are mutually uncoupled; and a second arrangement, wherein the first segment is attached to the frame of the bicycle, wherein the first segment and the second segment are mutually coupled and wherein the second segment extends, at least in part, around a wheel assembly of the bicycle; wherein the mudguard is arranged to move from the first arrangement to the second arrangement by mutually coupling the first segment and the second segment.
2. The mudguard according to claim 1 wherein: the first sub-segment has a curved cross-section transverse to the second line.
3. The mudguard according to any previous claim wherein: the set of sub-segments includes a second sub-segment proximal the second end of the second segment, wherein the second sub-segment defines a first linear section of the second line and/or has a linear cross-section transverse to the second line.
4. The mudguard according to claim 3 wherein: a width of the second sub-segment transverse to the second line is greater than a width of the first sub-segment transverse to the second line.
5. The mudguard according to either of claims 3 or 4 wherein: a mechanical property, for example a stiffness, of the second sub-segment of the second segment is less than a corresponding mechanical property, for example a stiffness, of the first sub-segment of the second segment.
6. The mudguard according to any previous claim wherein: in the second arrangement, the first segment and the second segment are mutually coupled proximal the second end and the first end, respectively, thereof.
7. The mudguard according to any previous claim wherein: in the second arrangement, the first segment and the second segment at least partly overlap.
8. The mudguard according to any previous claim wherein: an outer surface of the first segment and an inner surface of the second segment are shaped to correspondingly conform.
9. The mudguard according any previous claim wherein: the first segment comprises one or more apertures, and second segment comprises one or more apertures, and wherein, in the second arrangement, the apertures of the first segment align with the apertures of the second segment.
10. The mudguard according to claim 9 wherein: the first segment and second segment are mutually coupled by coupling elements configured to be inserted into the apertures.
11. The mudguard according to claim 10 wherein: the coupling elements are releasable coupling elements, for example releasable cable ties.
12. The mudguard according to any previous claim wherein: the first segment comprises a first part of a first mating member proximal the second end; the second segment comprises a second part of the first mating member proximal the first end, the second part of the first mating member for mating with the first part; wherein the mudguard is arranged to move from the first arrangement to the second arrangement by mutually mating the first part of the first mating member and the second part of the first mating member.
13. The mudguard according to claim 12 wherein: the first part and second part of the first mating member are configured to mate with a sliding fit.
14. The mudguard according to either of claims 12 or 13 wherein: the first part of the first mating member comprises and/or is a projection provided on the second end.
15. The mudguard according to claim 14 wherein: the second part of the first mating member comprises and/or is a slot provided on the second segment for receiving the first part of the first mating member therein.
16. The mudguard according to any of claims 12 to 15 when dependent on any of claims 9 to 11 wherein: mutually mating the first pad of the first mating member and the second part of the first mating member comprises aligning the apertures of the first segment with the apertures of the second segment.
17. The mudguard as claimed in any preceding claim wherein a length of the second line is greater than or equal to a length of the first line.
18. The mudguard as claimed in any preceding claim wherein: the first segment comprises a set of sub-segments including a first sub-segment proximal the second end, wherein the first sub-segment defines a first arcuate section of the first line; the first arcuate section of the first line is a circular arc, having a central angle in a range from 5 to 30 degrees; and the second arcuate section of the second line is a circular arc, having a central angle in a range from 15 to 160 degrees.
19. A kit comprising a mudguard according to any previous claim and one or more releasable coupling elements for coupling the first segment to the second segment and/or one or more attachment elements for attachment to the bicycle frame.
20. A method of installing a mudguard according to any of claims 1 to 18 or a kit according to claim 19, the method comprising: attaching the first segment to the frame of the bicycle; and coupling the second segment to the attached first segment.
21. The method according to claim 20 wherein the method comprises: uncoupling the second segment from the attached first segment.