USRE42436E1 - Chain ring protector - Google Patents

Chain ring protector Download PDF

Info

Publication number
USRE42436E1
USRE42436E1 US12/017,391 US1739108A USRE42436E US RE42436 E1 USRE42436 E1 US RE42436E1 US 1739108 A US1739108 A US 1739108A US RE42436 E USRE42436 E US RE42436E
Authority
US
United States
Prior art keywords
chain ring
portion
protector
lower bracket
mounting bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US12/017,391
Inventor
James K. Rogers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eko Sport Inc
Original Assignee
Eko Sport Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US10/236,766 priority Critical patent/US7066856B1/en
Application filed by Eko Sport Inc filed Critical Eko Sport Inc
Priority to US12/017,391 priority patent/USRE42436E1/en
Application granted granted Critical
Publication of USRE42436E1 publication Critical patent/USRE42436E1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS, CYCLE PROTECTORS
    • B62J13/00Guards for chain, chain drive or equivalent drive, e.g. belt drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS, CYCLE PROTECTORS
    • B62J23/00Other protectors specially adapted for cycles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • B62K19/44Chain-guards forming part of frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62JCYCLE SADDLES OR SEATS; ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS, CYCLE PROTECTORS
    • B62J15/00Mud-guards for wheels
    • B62J15/02Fastening means; Stays

Abstract

A chain ring protector having a substantially planar mounting bracket operably secured to the bottom bracket sleeve of a vehicle with a durable semi-circumferential guard extending therefrom is disclosed. The durable guard has a substantially arcuate outer edge sized to approximate the outer diameter of a chain ring, and it is operably secured to the planar mounting bracket such that the outer edge extends slightly beyond the outer diameter of the portion of the chain ring extending below the bottom bracket sleeve.

Description

This is a reissue application of U.S. application Ser. No. 10/236,766, which issued as U.S. Pat. No. 7,066,856.

FIELD OF THE INVENTION

The present invention relates to a protector for chain rings on bicycles and the like. In particular, it includes a mounting bracket operably secured to the bottom bracket sleeve with a durable guard extending therefrom and detachably secured thereto.

BACKGROUND OF THE INVENTION

Wheeled vehicles and especially in-line, two-wheeled vehicles such as bicycles, motorcycles, scooters, and the like, are popular forms of transportation, exercise, and sport. More recently, such vehicles are being used in particularly rugged environments including operating over unimproved roads and rough terrain, and for stunt riding over stairs and the like. For example, a form of bicycle commonly known as a mountain bike is specifically intended for off-road operation.

Most two-wheeled vehicles are propelled by a chain operably extending between two or more sprockets. One sprocket, commonly known as a chain ring, is driven by a power source such as a crank and pedal assembly. In bicycles, the chain ring is operably secured to a lower hub of the bicycle's frame which is commonly known as the lower bracket sleeve. The crank and pedal assembly usually have an axis of rotation centered along a centerline extending through the lower bracket sleeve.

Chain rings are usually planar disks with teeth along their outer diameter for engaging the chain. In order for the chain ring to operate effectively, it must remain substantially planar and the teeth must remain intact during operation of the vehicle. However, portions of most chain rings remain exposed and extend below the bicycle frame. Accordingly, chain rings are susceptible to bending and damage caused by inadvertent impact with objects.

This susceptibility is increased with off-road and stunt riding of the vehicle. For example, a rider of a mountain bicycle may frequently attempt to jump small objects such as rocks and fallen trees. If the rider executes a jump and in the process lands the bicycle such that a large rock straddles the front and rear wheels, the chain ring can impact the rock causing damage to the chain ring.

Attempts to protect the chain ring from inadvertent impacts have had limited success. For example, U.S. Pat. No. 5,320,583 to van Wingen born Looyen teaches securing a circular disk to the exterior planar surface of a chain ring such that the circular disk and chain ring are substantially parallel to each other and rotatable on the same axis or rotation. As a rider pedals, the chain ring and circular disk rotate about the axis of rotation. The circular disk contacts some objects approaching the chain ring first, thereby protecting the chain ring to a certain degree. However, since the circular disk is directly connected to the chain ring and drive shaft, any bending or damage of the circular disk caused by the impact will likely also bend the attached chain ring or drive shaft. Moreover, such circular disks offer negligible protection from impacts to the chain ring arising from contact with objects positioned toward the inside surface of the chain ring.

Inventors have also attempted to extend a chain ring protector directly from the bicycle's frame. For example, U.S. Pat. No. 5,067,930 to Morales teaches extending a trough-type protector from forward and aft struts mounted to the frame. The curved trough-type protector extends below the chain ring, thereby protecting it from inadvertent impact. A first clamp for securing the forward strut is positioned on a rail of the frame extending forward from the mounting bracket sleeve. A second clamp for securing the aft strut is positioned on rear wheel forks extending rearward from the mounting bracket sleeve. In an effort to allow the through-type protector to accommodate different bicycle designs, a swivel is provided between the first clamp and front strut.

Despite the benefits of the Morales design, it has several drawbacks. For example, a large amount of hardware, such as the first and second clamps, pivot structure, and struts, is required to support the protector, thereby increasing the expense of the structure and time required to mount and align it properly. Similarly, not all bicycles have the frame structure stemming from the mounting bracket sleeve as shown in Morales. Accordingly, the first and second clamps and orientation taught in Morales may not be operable when attempting to install the Morales protector on these different frame structures.

In addition, the length of the struts determines the size of the chain ring that may be used with it. Despite the limited adjustability provided by the swivel, if the struts are too short, a trough-type protector will not extend below the chain ring. Also, if the struts are too long, the trough-type protector can interfere with operation of the bicycle. In addition, under some impacts on the trough-type protector, the swivel structure can actually allow the trough-type protector to deflect into to the chain ring, thereby damaging it, or at least forcing the rider to stop to realign the protector.

SUMMARY OF THE INVENTION

Accordingly, despite the benefits of the known chain ring protectors, there remains a need for a simple, cost effective, easy to install and adjust, chain ring protector that can be operably secured to a large number of vehicles independent of a particular frame design, and that can effectively protect any sized chain ring operably installed on a vehicle without interfering with operation of the vehicle. In addition to other benefits that will become apparent in the following disclosure, the present invention fulfills these needs.

The present invention is a substantially planar mounting bracket operably secured to the bottom bracket sleeve of a vehicle with a durable guard extending therefrom. The durable guard has a substantially arcuate outer edge sized to approximate the outer diameter of a chain ring, and it is operably secured to the planar mounting bracket such that the outer edge extends slightly beyond the outer diameter of the chain ring in which it is protecting.

Preferably, the durable guard is detachably secured to the mounting bracket, and the mounting bracket includes a plurality of mounting portions thereon, thereby allowing a large variety of possible mounting configurations for the durable guard. More preferably, the guard includes parallelly aligned slots extending therethrough for operably engaging the mounting portions, thereby allowing the outer edge of the durable guard to be adjusted simply by sliding the durable guard along the slots toward or away from the bottom bracket sleeve.

Since the durable guard is detachably secured to the mounting bracket, the durable guard may be replaced easily if it becomes damaged or worn, or if a different sized durable guard is desired.

In an alternative embodiment, a second chain ring protector can be installed on the opposite side of the bottom bracket sleeve, and the two chain ring protectors can be operably secured together with a stabilizing bracket extending therebetween.

Additional objects and advantages of the present invention will be apparent from the detailed description of the preferred embodiment thereof, which proceeds with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an isometric front, right view of a bicycle having a chain ring protector installed thereon in accordance with an embodiment of the present invention.

FIG. 2 is an enlarged, fragmentary, exploded, isometric view of the chain ring protector shown in FIG. 1.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1.

FIG. 4 is a side view of the chain ring protector showing a possible orientation with respect to a chain ring.

FIG. 5A is a first sectional view of an alternative configuration showing a possible use of two chain ring protectors in accordance with an alternative embodiment of the present invention.

FIG. 5B is a second sectional view of the alternative configuration of FIG. 5A.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

A simple, cost effective, easy to install and adjust, chain ring protector 10 operably secured to the lower bracket sleeve 12 of a vehicle, such as a bicycle 14, is shown in FIGS. 1-5B.

Referring to FIG. 1, the bicycle 14 includes a frame 16 having a front wheel 18, back wheel 20, handle bars 22, seat 24, and the lower bracket sleeve 12 operably secured thereto. Preferably, the lower bracket sleeve 12 is reverse threaded to accept the threads of a conventional lower bracket spindle 26 (FIG. 2) therethrough. The lower bracket spindle 26 is a common, commercially available product, and includes a shaft 28 operably received within a housing 30. The shaft 28 rotates about a longitudinal centerline 32. Usually, bearings (not shown) are sealed within the housing 30 to facilitate rotation of the shaft 28.

Preferably, the housing 30 includes the reverse threads 34 toward one end 36 with a lip 38 adjacent to those threads 34. More preferably, the housing 30 also includes a recess 40 and spaced-apart notches 42 to allow a mating wrench portion (not shown) to be detachably secured thereto. According, the mating wrench portion may be used to tighten and loosen the lower bracket spindle 26 to the lower bracket sleeve 12.

Left and right cranks 44, 46, respectively, are operably secured to the ends 48a, 48b of the lower bracket spindle shaft 28 with a pivoting pedal 50 secured at the opposite ends of each crank 44, 46. At least one sprocket having teeth 52 extending radially therefrom is secured to the lower bracket spindle and positioned on one side of the lower bracket sleeve 12. This sprocket is also commonly known as a chain ring 54. Usually, the chain ring 54 is also secured to one of the cranks 44, 46.

A continuous loop chain (not shown) encircles the chain ring 54 and operably engages the teeth 52 of the chain ring 54. The chain also engages a second sprocket (not shown) operably secured to one of the front and rear wheels of the bicycle 14. Accordingly, when an operator pedals the bicycle by alternatingly urging the left and right cranks 44, 46, respectively, to spin the shaft 28, the chain ring 54 urges the chain to spin one of the wheels of the bicycle.

As best shown in FIGS. 2 and 3, the chain ring protector 10 is operably secured to the lower bracket sleeve 12. For example, the chain ring protector 10 can include a substantially planar mounting bracket 60 with an impact resistant and durable guard 62 extending therefrom. The mounting bracket 60 includes a central bracket mounting hole 64 for receiving the lower bracket spindle 26 therethrough. It can be appreciated that by tightening the lower bracket spindle 26 on the threads of the lower bracket sleeve 12, the mounting bracket 60 operates much like a conventional washer and is thereby secured in place when the lip 38 of the lower bracket spindle housing 30 tightens against the mounting bracket 60.

The mounting bracket 60 includes a plurality of guard mounting holes 70a-i thereon. Preferably, the mounting bracket 60 has two arms 72, 74 extending from the central bracket mounting hole 64 and a substantially circular outer edge 76 extending from the central bracket mounting hole 64 opposite the arms 72, 74 as best shown in FIG. 2. Each of the arms 72, 74 has a guard mounting hole 70a, 70b, respectively, thereon. Also, a plurality of guard mounting holes 70c-i are aligned along the circular outer edge 76.

The guard 62 has a substantially planar mounting portion 80 with an opening 82 to prevent it from interfering with the lower bracket spindle 26. A substantially arcuate outer edge 84 extends radially from the opening 82 as best shown in FIG. 2. The mounting portion 80 includes a plurality of mounting slots 86a-c, which are preferably parallelly aligned and spaced-apart from each other. Each slot 86a-c is positioned to align with one guard mounting hole 70a-c on the mounting bracket 60. For example, slot 86a aligns with mounting hole 70a, slot 86b aligns with mounting hole 70b, and slot 86c aligns with mounting hole 70c.

Connectors 90 extend through each aligned mounting hole and slot combination. Preferably, each connector includes a screw 92 being operably received into an internally threaded shaft 94 with a resilient washer 96 operably engaging the guard 62 and a lock washer 98 holding the screw 92 in place. More preferably, the internally threaded shaft 94 has a tapered head 100 and is recessed within the guard mounting hole (70a shown in FIG. 2) when the screw 92 is tightened.

Preferably, the mounting slots 86a-c are aligned to allow the substantially arcuate outer edge 84 to move toward or away from the lower bracket spindle 26 when the guard 62 is mounted to the mounting bracket 60. As shown in FIG. 4, the mounting slots 86a-c allow the position of the arcuate outer edge 84 of the guard 62 to extend past the outer radius 102 of the chain ring 54. Moreover, the mounting slots 86a-c allow the guard 62 to be individually adjusted for any particular chain ring 54 size, without necessarily requiring different guards 62 to protect different sized chain rings 54.

The guard 62 and mounting bracket 60 are constructed of durable, impact resistant materials. One known preferred guard material is Ultra-High Molecular Weight polyethylene or plastic, which is commonly known in the materials industry as “UHMW.” One known acceptable mounting bracket material is aluminum, and more preferably a type of aluminum known as “6061 Aluminum.”

As shown in FIG. 3, the chain ring protector 10 of the present invention can be used concurrently with a conventional chain ring-mounted protector 106. In such case, the chain ring protector 10 remains fixed to the lower bracket sleeve 12 to protect the chain ring 54 from impacts arising from contact with objects positioned toward the inside surface of the chain ring 54.

It can be appreciated that a plurality of chain rings 54a-c (FIG. 3) can be positioned on the lower bracket spindle shaft 28. In such case, the guard 62 is preferably positioned to extend beyond the outer radius 102 of the largest chain ring 54c (FIG. 3) on the shaft 28 as shown in FIG. 3.

Referring to FIG. 2, if desired, an anti-rotation mount 110 can be secured to the guard mounting holes 70d-i on the mounting bracket 60. The anti-rotation mount 110 extends from the mounting bracket 60 toward the frame 16 and is preferably wedged adjacent to one or two frame members 112 extending from the lower bracket sleeve 12. Preferably, the anti-rotation mount 110 includes a notched recess 114 sized to operably engage the frame members 112. The large number of guard mounting holes 70c-i along the substantially circular outer edge 76 allow the anti-rotation mount 110 to be effectively installed on a wide variety of frame styles and sizes. An installer mounts the anti-rotation mount 110 with bolts 111 extending through one or more of the mounting holes 70c-i on the mounting bracket 60. The installer simply selects the particular mounting holes 70c-i (FIG. 2 shows mounting holes 70f and 70g being used) that best fit that particular frame.

When the chain ring protector 10 is installed on the bicycle 14, the chain ring 54 is protected from inadvertent impacts with an object 11. The mounting bracket also assists with preventing the chain from inadvertently falling off the chain ring. Moreover, the chain ring protector 10 is operably secured directly to the lower bracket sleeve 12, one of the strongest elements of the frame 16. In addition, no portion of the chain ring protector 10 contacts or otherwise engages the chain ring 54 so it will not likely also damage the chain ring 54 in the process of protecting it. Accordingly, should the chain ring protector 10 become damaged during use, it can be easily replaced without removing the mounting bracket 60 from the lower bracket sleeve 12. Since the chain ring protector is secured primarily in place on the lower bracket sleeve using a conventional lower bracket spindle, which is already needed to enable operation of the bicycle, the need for additional mounting hardware beyond the mounting bracket is greatly reduced over the structure disclosed in U.S. Pat. No. 5,067,930 to Morales.

In view of the wide variety of embodiments to which the principles of the invention can be applied, it should be apparent that the detailed embodiments are illustrative only and should not be taken as limiting the scope of the invention. For example, and as best shown in FIGS. 5A & 5B, two chain rings protectors 10, 10′ can be installed on a lower bracket sleeve 12. One chain ring protector 10 is positioned between the lower bracket sleeve 12 and chain ring 54 as previously described. The other chain ring protector 10′ is operably secured to the opposite end of the lower bracket sleeve 12 as shown. Preferably, the opposite end of the lower bracket sleeve 12 includes a threaded portion 120 with a mating threaded mount (not shown) having a lip (not shown) for engaging the mounting bracket 60 of the second chain ring protector 10′. If desired and as shown in FIG. 5B, the anti-rotation mount 110 can extend between the two mounting brackets, thereby securing them in place on the bicycle 14.

Accordingly, the claimed invention includes all such modifications as may come within the scope of the following claims and equivalents thereto.

Claims (25)

1. A chain ring protector for a vehicle having a frame with a lower bracket sleeve thereon and a lower bracket spindle operably secured thereto, the spindle pivotally securing a chain ring to the frame, the chain ring defining an outer radius with a portion of the chain ring extending below the lower bracket sleeve, said chain ring protector comprising:
a substantially planar mounting bracket portion secured to the lower bracket sleeve such that the substantially planar mounting bracket remains fixed with respect to the frame while the chain ring pivots; and,
a semi-circumferential guard portion extending from the substantially planar mount bracket portion adjacent to the chain ring and aligned with the portion of the chain ring extending below the lower bracket sleeve, an outer edge of said guard portion extending past the outer radius of the chain ring so as to protect the portion of the chain ring extending below the lower bracket sleeve from inadvertent impacts; and
means for detachably securing said semi-circumferential guard portion to said substantially planar mounting bracket portion so as to allow said semi-circumferential guard portion to be replaced without removing said planar mounting bracket portion from said lower bracket sleeve.
2. The chain ring protector of claim 1, wherein the spindle includes a threaded end with a lip, and said lower bracket sleeve has mating threads for operably engaging the threaded end of the spindle, and wherein said substantially planar mounting bracket includes an opening for receiving the spindle therethrough such that tightening the spindle on said lower bracket urges the lip to engage the mounting bracket, thereby securing the mounting bracket to the lower bracket sleeve.
3. The chain ring protector of claim 1, wherein said guard portion is detachably secured to said substantially planar mounting bracket.
4. The chain ring protector of claim 3 2, wherein said guard includes a plurality of parallelly aligned slots thereon and said guard is secured to said mounting bracket through fasteners extending through said slots.
5. The chain ring protector of claim 4, wherein said guard has an substantially arcuate outer edge and the position of said arcuate outer edge with respect to an outer radius of said chain ring is adjustable by sliding said guard along said slots.
6. The chain right protector of claim 1, further including an anti-rotation mount extending from said chain ring protector to the frame.
7. The chain ring protector of claim 6, wherein said anti-rotation mount includes a recess for operably engaging a frame member of the frame.
8. The chain ring protector of claim 1, further including a second chain ring detector protector, said second chain ring detector protector operably secured to an opposite end of said lower bracket sleeve and aligned substantially parallel with said chain ring detector protector.
9. The chain ring protector of claim 1, further including A chain ring protector for a vehicle having a frame with a lower bracket sleeve thereon and a lower bracket spindle operably secured thereto, the spindle pivotally securing a chain ring to the frame, the chain ring defining an outer radius with a portion of the chain ring extending below the lower bracket sleeve, said chain ring protector comprising:
a substantially planar mounting bracket portion secured to the lower bracket sleeve such that the substantially planar mounting bracket remains fixed with respect to the frame while the chain ring pivots;
a semi-circumferential guard portion extending from the substantially planar mount bracket portion adjacent to the chain ring and aligned with the portion of the chain ring extending below the lower bracket sleeve, an outer edge of said guard portion extending past the outer radius of the chain ring so as to protect the portion of the chain ring extending below the lower bracket sleeve from inadvertent impacts; and
a protective disk operably secured to said chain ring and having an outer radius larger than an outer radius of the chain ring.
10. A bicycle comprising:
a frame having a lower bracket sleeve thereon, forward and aft wheels operably secured to said frame, handle bars operably engaging said forward wheel and operably secured to said frame;
a lower bracket spindle having a pivoting shaft therein, said spindle detachably received though said lower bracket sleeve, said shaft having first and second ends;
a left crank secured to said first end of said shaft;
a right crank secured to said second end of said shaft;
a substantially planar sprocket operably secured to said shaft, for driving said aft wheel by rotation of said sprocket, a portion of said sprocket extending below said lower bracket sleeve by a defined distance;
a substantially planar mounting bracket portion secured to the lower bracket sleeve such that the substantially planar mounting bracket remains fixed with respect to the frame while the sprocket rotates about said shaft; and,
a semi-circumferential guard portion extending from the substantially planar mount bracket portion adjacent to the chain ring by a length greater than said defined distance, said semi-circumferential guard portion substantially aligned with said portion of said sprocket extending below said lower bracket sleeve; and
means for detachably securing said semi-circumferential guard portion to said substantially planar mounting bracket portion so as to allow said semi-circumferential guard portion to be replaced without removing said planar mounting bracket portion from said lower bracket sleeve.
11. The bicycle of claim 10, wherein the spindle includes a threaded end with a lip, and said lower bracket sleeve has mating threads for operably engaging the threaded end of the spindle, and wherein said substantially planar mounting bracket includes an opening for receiving the spindle therethrough such that tightening the spindle on said lower bracket urges the lip to engage the mounting bracket, thereby securing the mounting bracket to the lower bracket sleeve.
12. The bicycle of claim 10, wherein said guard portion is detachably secured to said substantially planar mounting bracket.
13. The bicycle of claim 12 10, wherein said guard includes a plurality of parallelly aligned slots thereon and said guard is secured to said mounting bracket through fasteners extending through said slots.
14. The bicycle of claim 13, wherein said guard has an substantially arcuate outer edge and the position of said arcuate outer edge with respect to an outer radius of said sprocket is adjustable by sliding said guard along said slots.
15. The bicycle of claim 10, further including an anti-rotation mount, extending from said mounting bracket to the frame.
16. The bicycle of claim 10, further including a protective disk operably secured to said sprocket and having an outer radius larger than an outer radius of the chain ring.
17. The bicycle of claim 10, further Including a plurality of sprockets operably secured to said shaft, with each sprocket of said plurality of sprockets having a different outer radius.
18. The chain ring protector of claim 1, further including adjustment means for adjusting the position of said semi-circumferential guard portion relative to said substantially planar mounting bracket portion so as to allow said outer edge of said guard portion to be adjusted without removing said substantially planar mounting bracket from said lower bracket sleeve.
19. The chain ring protector of claim 1, further including means for detachably securing said semi-circumferential guard portion to said substantially planer mounting bracket portion so as to allow said semi-circumferential guard portion to be replaced without removing said planar mounting bracket portion from said lower bracket sleeve.
20. The chain ring protector of claim 1, A chain ring protector for a vehicle having a frame with a lower bracket sleeve thereon and a lower bracket spindle operably secured thereto, the spindle pivotally securing a chain ring to the frame, the chain ring defining an outer radius with a portion of the chain ring extending below the lower bracket sleeve, said chain ring protector comprising:
a substantially planar mounting bracket portion secured to the lower bracket sleeve such that the substantially planar mounting bracket remains fixed with respect to the frame while the chain ring pivots; and
a semi-circumferential guard portion extending from the substantially planar mount bracket portion adjacent to the chain ring and aligned with the portion of the chain ring extending below the lower bracket sleeve, an outer edge of said guard portion extending past the outer radius of the chain ring so as to protect the portion of the chain ring extending below the lower bracket sleeve from inadvertent impacts;
wherein said chain ring defines a plane, and said chain ring protector is aligned parallel to the plane without intersecting said plane.
21. The protector of claim 20, wherein the mounting bracket defines an aperture sized to pass at least a portion of a lower bracket spindle shaft therethrough, whereby the mounting bracket contacts no drivetrain component when installed on the bicycle.
22. The protector of claim 21, wherein the aperture is sized so the mounting bracket is adapted to be mounted to a bicycle between the lower bracket sleeve and a spindle lip.
23. The protector of claim 20, wherein the mounting bracket defines a plurality of bolt mounting holes.
24. The protector of claim 23, wherein the protector further comprises a mount adapted to engage at least one bicycle frame tube.
25. The protector of claim 24, wherein the mount is notched to wedge between two frame tubes.
US12/017,391 2002-09-06 2008-01-22 Chain ring protector Active USRE42436E1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/236,766 US7066856B1 (en) 2002-09-06 2002-09-06 Chain ring protector
US12/017,391 USRE42436E1 (en) 2002-09-06 2008-01-22 Chain ring protector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/017,391 USRE42436E1 (en) 2002-09-06 2008-01-22 Chain ring protector
US13/153,967 USRE45508E1 (en) 2002-09-06 2011-06-06 Chain ring protector

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/236,766 Reissue US7066856B1 (en) 2002-09-06 2002-09-06 Chain ring protector

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/236,766 Continuation US7066856B1 (en) 2002-09-06 2002-09-06 Chain ring protector

Publications (1)

Publication Number Publication Date
USRE42436E1 true USRE42436E1 (en) 2011-06-07

Family

ID=36600380

Family Applications (4)

Application Number Title Priority Date Filing Date
US10/236,766 Active - Reinstated US7066856B1 (en) 2002-09-06 2002-09-06 Chain ring protector
US12/017,391 Active USRE42436E1 (en) 2002-09-06 2008-01-22 Chain ring protector
US12/017,425 Active USRE44379E1 (en) 2002-09-06 2008-01-22 Chain ring protector
US13/153,967 Active USRE45508E1 (en) 2002-09-06 2011-06-06 Chain ring protector

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/236,766 Active - Reinstated US7066856B1 (en) 2002-09-06 2002-09-06 Chain ring protector

Family Applications After (2)

Application Number Title Priority Date Filing Date
US12/017,425 Active USRE44379E1 (en) 2002-09-06 2008-01-22 Chain ring protector
US13/153,967 Active USRE45508E1 (en) 2002-09-06 2011-06-06 Chain ring protector

Country Status (1)

Country Link
US (4) US7066856B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110230287A1 (en) * 2010-03-22 2011-09-22 Joseph Savola Chain lateral travel limiter
US20130053196A1 (en) * 2011-08-26 2013-02-28 Shimano, Inc. Chain guide assembly with movable member
US8820853B1 (en) 2010-03-25 2014-09-02 Eko Sport, Inc. Wheel axle assembly
US20150353155A1 (en) * 2013-02-27 2015-12-10 Miranda & Irmao, Lda. Sprocket cover
US9327786B2 (en) * 2012-08-17 2016-05-03 Eko Sport, Inc. Chain guard with unitary bracket extension

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066856B1 (en) 2002-09-06 2006-06-27 Rogers James K Chain ring protector
US7312440B2 (en) * 2003-01-14 2007-12-25 Georgia Tech Research Corporation Integrated micro fuel processor and flow delivery infrastructure
US7544154B2 (en) * 2004-07-01 2009-06-09 Unisen, Inc. Chain guard arrangement for spinning bikes
US20060199690A1 (en) * 2005-02-09 2006-09-07 Cannondale Bicycle Corporation Chain guide
US8979685B2 (en) * 2006-04-07 2015-03-17 The Hive Global, Inc. Impact protector mounting
US8235849B2 (en) * 2007-08-29 2012-08-07 Eko Sport, Inc. Combined chain ring protector and chain guide
US7942767B2 (en) * 2007-12-19 2011-05-17 Shimano, Inc. Bicycle derailleur with multiple mounting adjustments
US20090220319A1 (en) * 2008-02-28 2009-09-03 David Weagle Captive fasteners for bicycle chainguides
US8872071B2 (en) * 2008-05-07 2014-10-28 Illinois Tool Works Inc. Cooling of a welding implement
US20100317475A1 (en) * 2009-06-12 2010-12-16 Specialized Bicycle Components, Inc. Chain guide mount for a bicycle
US8882130B2 (en) * 2012-10-11 2014-11-11 Shimano Inc. Bicycle drive assembly
US10221887B2 (en) 2012-12-06 2019-03-05 The Hive Global, Inc Self locking bearing preload adjuster
JP6514995B2 (en) * 2015-08-31 2019-05-15 株式会社シマノ Bicycle guard and drive unit having the same
JP2018003992A (en) * 2016-07-05 2018-01-11 株式会社シマノ Rotor cover

Citations (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US968304A (en) * 1910-02-24 1910-08-23 George H Winslow Pulley-guard.
US1325206A (en) 1919-12-16 Driving-gear casing eor bicycles
US1400131A (en) 1921-02-05 1921-12-13 Howard A Jones Sprocket-guard attachment for bicycles
US1636327A (en) 1926-05-12 1927-07-19 Colson Company Cycle
DK96297C (en) 1958-11-25 1963-06-24 Gen Electric Co Ltd Refrigeration equipment.
US3184993A (en) 1963-12-11 1965-05-25 Carl A Swenson Derailleur guard
US3416385A (en) 1967-03-20 1968-12-17 Case Co J I Sprocket assembly
US3477303A (en) * 1967-11-28 1969-11-11 Schwinn Bicycle Co Double plateau sprocket assembly
DE2058799A1 (en) 1969-11-30 1971-07-15 Geb Van Der Woerd Will Looijen Kettengehaeuse for bicycle or the like.
US3785219A (en) 1972-06-05 1974-01-15 J Anthamatten Coaster brake system for a multi-speed bicycle
US3815439A (en) * 1972-10-20 1974-06-11 Shimano Industrial Co Multi-speed transmission front gear system
US3835729A (en) 1971-11-27 1974-09-17 Shimano Industrial Co Means for preventing driving chain from coming off multi-speed transmission front gear for bicycle
US3869138A (en) 1973-04-04 1975-03-04 Ford Motor Co Steering device having a chain operated steering gear actuator
US3910136A (en) 1973-04-16 1975-10-07 Lucien Charles Hippolyte Juy Protection apparatus for a speed change mechanism of a bicycle or similar vehicle
US3973447A (en) 1974-06-06 1976-08-10 Shimano Industrial Company, Limited Derailleur for a bicycle
US4044621A (en) 1975-06-09 1977-08-30 Mcgregor Sr John C Sprocket structure and chain guard
US4078444A (en) 1976-02-13 1978-03-14 Jacques Andre Huret Front derailleur chain guide
US4106357A (en) 1975-12-29 1978-08-15 Shimano Industrial Company Limited Multistage gear crank for a bicycle
US4135727A (en) 1976-07-06 1979-01-23 Tullio Campagnolo Mounting of the transmission chain of bicycles
NL7800724A (en) 1978-01-20 1979-07-24 Looijen W J Van Bicycle chain guard fixing bracket - has flat portion with central bore for fixing on crank bearing bush and bent ends engaging guard rim
US4237743A (en) 1977-10-11 1980-12-09 Shimano Industrial Company, Limited Front derailleur for a bicycle
US4240303A (en) * 1978-09-27 1980-12-23 Mosley Earnest D Chain sprocket with opposite frangible side guide plates
US4330137A (en) 1979-08-15 1982-05-18 Shimano Industrial Company Limited Front derailleur for a bicycle
US4337933A (en) 1980-04-09 1982-07-06 Shimano Industrial Company Limited Jig for mounting a front derailleur in a bicycle
US4380445A (en) * 1974-08-16 1983-04-19 Shimano Industrial Company Limited Transmission for a bicycle
US4433963A (en) 1979-12-29 1984-02-28 Shimano Industrial Company Limited Chain guide for a derailleur for a bicycle
US4439172A (en) 1977-12-28 1984-03-27 Shimano Industrial Company Limited Chain gear and crank mounting assembly
US4475894A (en) 1981-05-27 1984-10-09 Sugino Cycle Industries, Ltd. Front sprocket wheel having chain guard for bicycles
US4487424A (en) * 1983-01-21 1984-12-11 Ellis William L Bicycle sprocket shield
DE3421210A1 (en) * 1983-06-10 1984-12-13 Woerd Bv Bicycle chain guard made of plastic
US4498890A (en) 1982-12-20 1985-02-12 General Electric Company Fixed track chain drive
US4507105A (en) 1982-12-09 1985-03-26 Huffy Corporation Bicycle chainguard
US4515386A (en) 1983-06-27 1985-05-07 Kanji Tsujimura Guard for chain wheel
DE3417336A1 (en) 1984-05-10 1985-11-14 Hubert Hauke Slipping element
SU1199696A1 (en) 1981-11-27 1985-12-23 Tishevich Boris A Protective casing of single-track vehicle drive
US4573950A (en) 1983-06-24 1986-03-04 Shimano Industrial Company Limited Chain guide in a front derailleur
US4632416A (en) 1985-07-24 1986-12-30 Zelenetz Scott H Flexible protective cover for the drive train elements of a bicycle
US4639240A (en) 1985-05-01 1987-01-27 Schwinn Bicycle Company Chainguard
DE3537615A1 (en) * 1985-10-23 1987-04-23 Hemmelskamp Fa H Chain guard made of plastic
US4662862A (en) 1986-01-22 1987-05-05 Les Matson Tensioning device for flexible drive element
USD298613S (en) 1986-02-24 1988-11-22 Wald Manufacturing Co., Inc. Bicycle chain guard
US4832667A (en) 1987-08-06 1989-05-23 Wren Nicholas D Front chain wheel chain guide
US4854924A (en) 1986-08-21 1989-08-08 Shimano Industrial Company Limited Cover device for a driving chain for a bicycle
US4905541A (en) 1988-09-29 1990-03-06 Huffy Corporation Derailleur guard
US5002520A (en) 1989-12-14 1991-03-26 Greenlaw John W Bicycle drive chain guide
US5003840A (en) * 1989-11-06 1991-04-02 Huffy Corporation Cover for the driving sprocket of a bicycle
US5018564A (en) 1990-03-26 1991-05-28 Anglin Gregory V Fabric protective cover for a drive mechanism of a bicycle
US5067930A (en) 1990-12-20 1991-11-26 Robert Morales Bicycle sprocket protector
DE4126156A1 (en) 1990-08-09 1992-03-05 Martin Eder Bicycle chain guard - is fixed concentrically around pedal sprocket bearing and covers sprocket side
US5134901A (en) * 1990-06-18 1992-08-04 Odin Foam Company Interconnect casing and power divider employing the casing
US5320583A (en) * 1992-01-17 1994-06-14 De Woerd B.V. Protector for front chain sprocket of a bicycle
US5320582A (en) 1991-11-29 1994-06-14 Nec Corporation Chain driving unit
US5326331A (en) 1993-08-26 1994-07-05 Hallock Iii Orrin S Chain, hub, spoke and derailleur guard
NL9300333A (en) * 1993-02-23 1994-09-16 Woerd Bv Mounting bracket.
US5460576A (en) 1993-10-07 1995-10-24 Barnett; Robert L. Bicycle chain guide
US5496222A (en) 1993-11-12 1996-03-05 Shimano, Inc. Front derailleur for a bicycle
US5540118A (en) 1994-05-09 1996-07-30 Calendrille, Jr.; John L. Flexible bicycle derailleur cover for protection against contaminants such as mud
US5676616A (en) 1996-03-06 1997-10-14 Shimano, Inc. Protective cover for a bicycle derailleur
US5679084A (en) 1996-05-06 1997-10-21 Daniels, Iii; Vernon James Motorcycle roller chain guide
US5725450A (en) 1996-08-21 1998-03-10 Joshua Paris Device for preventing derailment of a bicycle chain
US5728018A (en) 1994-11-25 1998-03-17 Shimano, Inc. Method and apparatus for positioning a bicycle derailleur chain guide
US5782714A (en) 1997-01-27 1998-07-21 Evergreen Innovations, L.L.C. Bicycle chain guide
US5846148A (en) 1995-08-07 1998-12-08 Shimano, Inc. Bicycle front derailleur
JPH1120764A (en) * 1997-06-30 1999-01-26 Tadayoshi Kajiyama bicycle
US6039665A (en) 1996-12-20 2000-03-21 Shimano, Inc. Multiple sprocket assembly for a bicycle
US6083132A (en) 1998-05-04 2000-07-04 Moxee Innovations Corporation Free floating belt idler
US6117032A (en) 1998-02-13 2000-09-12 Shimano, Inc. Protective plate for bicycle chain
US6165092A (en) 1996-09-18 2000-12-26 Bramham; Benjamin Guide assembly for a bicycle
US6203459B1 (en) 1997-07-25 2001-03-20 John L. Calendrille, Jr. Bicycle derailleur system with integral flexible seal to protect moving parts from contaminants
US6332853B1 (en) 1999-03-22 2001-12-25 Melinda K. Bowman Removable cover for bicycle chain and derailleurs
US6354973B1 (en) * 1999-11-16 2002-03-12 Robert L. Barnett Chain guide apparatus for bicycle
US20020160869A1 (en) 2001-04-30 2002-10-31 Barnett Robert L. Chain guide apparatus for bicycle
EP1288119A2 (en) * 2001-08-27 2003-03-05 RIXEN & KAUL GmbH Crank arm for bicycle
US20040009835A1 (en) 2002-03-20 2004-01-15 Jon Heim Multiple sprocket, multiple function chain guide
US20040254038A1 (en) 2003-06-11 2004-12-16 Chamberlain Jason L. Bicycle rear derailleur guard
US6988427B2 (en) 2001-11-23 2006-01-24 Shimano, Inc. Seal assembly for a bicycle bottom bracket
US7066856B1 (en) 2002-09-06 2006-06-27 Rogers James K Chain ring protector
US7066857B1 (en) 2003-11-04 2006-06-27 Derosa Umberto Rear derailleur guard

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728244A (en) 1951-07-17 1955-12-27 O'shei William Edward Crank fittings
US3402942A (en) 1966-06-17 1968-09-24 Shimano Industrial Co Device for tensioning the driving chain in a bicycle equipped with coaster brake and exposed speed change gear
US4178062A (en) 1978-07-28 1979-12-11 Edward Abbo Modular telephone connecting box
JPS5843876A (en) 1981-09-05 1983-03-14 Honda Motor Co Ltd Mud guard device for chain in motorcycle
US4946426A (en) 1989-09-06 1990-08-07 Stern & Leonard Associates Self-positioning belt tensioner
US6190275B1 (en) 1999-05-26 2001-02-20 Gregory J. Ciancio Bicycle chain anti-snare device
US20060199690A1 (en) 2005-02-09 2006-09-07 Cannondale Bicycle Corporation Chain guide
US8979685B2 (en) 2006-04-07 2015-03-17 The Hive Global, Inc. Impact protector mounting
US8235849B2 (en) * 2007-08-29 2012-08-07 Eko Sport, Inc. Combined chain ring protector and chain guide

Patent Citations (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325206A (en) 1919-12-16 Driving-gear casing eor bicycles
US968304A (en) * 1910-02-24 1910-08-23 George H Winslow Pulley-guard.
US1400131A (en) 1921-02-05 1921-12-13 Howard A Jones Sprocket-guard attachment for bicycles
US1636327A (en) 1926-05-12 1927-07-19 Colson Company Cycle
DK96297C (en) 1958-11-25 1963-06-24 Gen Electric Co Ltd Refrigeration equipment.
US3184993A (en) 1963-12-11 1965-05-25 Carl A Swenson Derailleur guard
US3416385A (en) 1967-03-20 1968-12-17 Case Co J I Sprocket assembly
US3477303A (en) * 1967-11-28 1969-11-11 Schwinn Bicycle Co Double plateau sprocket assembly
DE2058799A1 (en) 1969-11-30 1971-07-15 Geb Van Der Woerd Will Looijen Kettengehaeuse for bicycle or the like.
US3835729A (en) 1971-11-27 1974-09-17 Shimano Industrial Co Means for preventing driving chain from coming off multi-speed transmission front gear for bicycle
US3785219A (en) 1972-06-05 1974-01-15 J Anthamatten Coaster brake system for a multi-speed bicycle
US3815439A (en) * 1972-10-20 1974-06-11 Shimano Industrial Co Multi-speed transmission front gear system
US3869138A (en) 1973-04-04 1975-03-04 Ford Motor Co Steering device having a chain operated steering gear actuator
US3910136A (en) 1973-04-16 1975-10-07 Lucien Charles Hippolyte Juy Protection apparatus for a speed change mechanism of a bicycle or similar vehicle
US3973447A (en) 1974-06-06 1976-08-10 Shimano Industrial Company, Limited Derailleur for a bicycle
US4380445A (en) * 1974-08-16 1983-04-19 Shimano Industrial Company Limited Transmission for a bicycle
US4044621A (en) 1975-06-09 1977-08-30 Mcgregor Sr John C Sprocket structure and chain guard
US4106357A (en) 1975-12-29 1978-08-15 Shimano Industrial Company Limited Multistage gear crank for a bicycle
US4078444A (en) 1976-02-13 1978-03-14 Jacques Andre Huret Front derailleur chain guide
US4135727A (en) 1976-07-06 1979-01-23 Tullio Campagnolo Mounting of the transmission chain of bicycles
US4237743A (en) 1977-10-11 1980-12-09 Shimano Industrial Company, Limited Front derailleur for a bicycle
US4439172A (en) 1977-12-28 1984-03-27 Shimano Industrial Company Limited Chain gear and crank mounting assembly
NL7800724A (en) 1978-01-20 1979-07-24 Looijen W J Van Bicycle chain guard fixing bracket - has flat portion with central bore for fixing on crank bearing bush and bent ends engaging guard rim
US4240303A (en) * 1978-09-27 1980-12-23 Mosley Earnest D Chain sprocket with opposite frangible side guide plates
US4330137A (en) 1979-08-15 1982-05-18 Shimano Industrial Company Limited Front derailleur for a bicycle
US4433963A (en) 1979-12-29 1984-02-28 Shimano Industrial Company Limited Chain guide for a derailleur for a bicycle
US4337933A (en) 1980-04-09 1982-07-06 Shimano Industrial Company Limited Jig for mounting a front derailleur in a bicycle
US4475894A (en) 1981-05-27 1984-10-09 Sugino Cycle Industries, Ltd. Front sprocket wheel having chain guard for bicycles
SU1199696A1 (en) 1981-11-27 1985-12-23 Tishevich Boris A Protective casing of single-track vehicle drive
US4507105A (en) 1982-12-09 1985-03-26 Huffy Corporation Bicycle chainguard
US4498890A (en) 1982-12-20 1985-02-12 General Electric Company Fixed track chain drive
US4487424A (en) * 1983-01-21 1984-12-11 Ellis William L Bicycle sprocket shield
DE3421210A1 (en) * 1983-06-10 1984-12-13 Woerd Bv Bicycle chain guard made of plastic
US4573950A (en) 1983-06-24 1986-03-04 Shimano Industrial Company Limited Chain guide in a front derailleur
US4515386A (en) 1983-06-27 1985-05-07 Kanji Tsujimura Guard for chain wheel
DE3417336A1 (en) 1984-05-10 1985-11-14 Hubert Hauke Slipping element
US4639240A (en) 1985-05-01 1987-01-27 Schwinn Bicycle Company Chainguard
US4632416A (en) 1985-07-24 1986-12-30 Zelenetz Scott H Flexible protective cover for the drive train elements of a bicycle
DE3537615A1 (en) * 1985-10-23 1987-04-23 Hemmelskamp Fa H Chain guard made of plastic
US4662862A (en) 1986-01-22 1987-05-05 Les Matson Tensioning device for flexible drive element
USD298613S (en) 1986-02-24 1988-11-22 Wald Manufacturing Co., Inc. Bicycle chain guard
US4854924A (en) 1986-08-21 1989-08-08 Shimano Industrial Company Limited Cover device for a driving chain for a bicycle
US4832667A (en) 1987-08-06 1989-05-23 Wren Nicholas D Front chain wheel chain guide
US4905541A (en) 1988-09-29 1990-03-06 Huffy Corporation Derailleur guard
USD323309S (en) 1989-02-17 1992-01-21 Bicycle freewheel gear cover
US5003840A (en) * 1989-11-06 1991-04-02 Huffy Corporation Cover for the driving sprocket of a bicycle
US5002520A (en) 1989-12-14 1991-03-26 Greenlaw John W Bicycle drive chain guide
US5018564A (en) 1990-03-26 1991-05-28 Anglin Gregory V Fabric protective cover for a drive mechanism of a bicycle
US5134901A (en) * 1990-06-18 1992-08-04 Odin Foam Company Interconnect casing and power divider employing the casing
DE4126156A1 (en) 1990-08-09 1992-03-05 Martin Eder Bicycle chain guard - is fixed concentrically around pedal sprocket bearing and covers sprocket side
US5067930A (en) 1990-12-20 1991-11-26 Robert Morales Bicycle sprocket protector
US5320582A (en) 1991-11-29 1994-06-14 Nec Corporation Chain driving unit
US5320583A (en) * 1992-01-17 1994-06-14 De Woerd B.V. Protector for front chain sprocket of a bicycle
NL9300333A (en) * 1993-02-23 1994-09-16 Woerd Bv Mounting bracket.
US5326331A (en) 1993-08-26 1994-07-05 Hallock Iii Orrin S Chain, hub, spoke and derailleur guard
US5460576A (en) 1993-10-07 1995-10-24 Barnett; Robert L. Bicycle chain guide
US5496222A (en) 1993-11-12 1996-03-05 Shimano, Inc. Front derailleur for a bicycle
US5620384A (en) 1993-11-12 1997-04-15 Shimano, Inc. Front derailleur for a bicycle
USD355872S (en) * 1993-12-29 1995-02-28 Huffy Corporation Bicycle chainguard
US5540118A (en) 1994-05-09 1996-07-30 Calendrille, Jr.; John L. Flexible bicycle derailleur cover for protection against contaminants such as mud
US5728018A (en) 1994-11-25 1998-03-17 Shimano, Inc. Method and apparatus for positioning a bicycle derailleur chain guide
US5846148A (en) 1995-08-07 1998-12-08 Shimano, Inc. Bicycle front derailleur
US5676616A (en) 1996-03-06 1997-10-14 Shimano, Inc. Protective cover for a bicycle derailleur
US5679084A (en) 1996-05-06 1997-10-21 Daniels, Iii; Vernon James Motorcycle roller chain guide
US5725450A (en) 1996-08-21 1998-03-10 Joshua Paris Device for preventing derailment of a bicycle chain
US6165092A (en) 1996-09-18 2000-12-26 Bramham; Benjamin Guide assembly for a bicycle
US6039665A (en) 1996-12-20 2000-03-21 Shimano, Inc. Multiple sprocket assembly for a bicycle
US5782714A (en) 1997-01-27 1998-07-21 Evergreen Innovations, L.L.C. Bicycle chain guide
JPH1120764A (en) * 1997-06-30 1999-01-26 Tadayoshi Kajiyama bicycle
US6416434B1 (en) 1997-07-25 2002-07-09 John L. Calendrille, Jr. Bicycle derailleur having cable connected to upper link arm without substantial bending
US6203459B1 (en) 1997-07-25 2001-03-20 John L. Calendrille, Jr. Bicycle derailleur system with integral flexible seal to protect moving parts from contaminants
US6117032A (en) 1998-02-13 2000-09-12 Shimano, Inc. Protective plate for bicycle chain
US6083132A (en) 1998-05-04 2000-07-04 Moxee Innovations Corporation Free floating belt idler
US6332853B1 (en) 1999-03-22 2001-12-25 Melinda K. Bowman Removable cover for bicycle chain and derailleurs
US6354973B1 (en) * 1999-11-16 2002-03-12 Robert L. Barnett Chain guide apparatus for bicycle
US20020160869A1 (en) 2001-04-30 2002-10-31 Barnett Robert L. Chain guide apparatus for bicycle
US6533690B2 (en) 2001-04-30 2003-03-18 Robert L. Barnett Chain guide apparatus for bicycle
EP1288119A2 (en) * 2001-08-27 2003-03-05 RIXEN & KAUL GmbH Crank arm for bicycle
US6988427B2 (en) 2001-11-23 2006-01-24 Shimano, Inc. Seal assembly for a bicycle bottom bracket
US20040009835A1 (en) 2002-03-20 2004-01-15 Jon Heim Multiple sprocket, multiple function chain guide
US7059983B2 (en) 2002-03-20 2006-06-13 Jon Heim Multiple sprocket, multiple function chain guide
US7066856B1 (en) 2002-09-06 2006-06-27 Rogers James K Chain ring protector
US20040254038A1 (en) 2003-06-11 2004-12-16 Chamberlain Jason L. Bicycle rear derailleur guard
US7066857B1 (en) 2003-11-04 2006-06-27 Derosa Umberto Rear derailleur guard

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110230287A1 (en) * 2010-03-22 2011-09-22 Joseph Savola Chain lateral travel limiter
US8820853B1 (en) 2010-03-25 2014-09-02 Eko Sport, Inc. Wheel axle assembly
US9199689B2 (en) 2010-03-25 2015-12-01 Eko Sport, Inc. Wheel axle assembly
US20130053196A1 (en) * 2011-08-26 2013-02-28 Shimano, Inc. Chain guide assembly with movable member
US8961342B2 (en) * 2011-08-26 2015-02-24 Shimano Inc. Chain guide assembly with movable member
DE102012213482B4 (en) * 2011-08-26 2017-05-18 Shimano Inc. Chain guide assembly with movable element
US9327786B2 (en) * 2012-08-17 2016-05-03 Eko Sport, Inc. Chain guard with unitary bracket extension
US20150353155A1 (en) * 2013-02-27 2015-12-10 Miranda & Irmao, Lda. Sprocket cover
US10124849B2 (en) * 2013-02-27 2018-11-13 Miranda & Irmao, Lda. Sprocket cover

Also Published As

Publication number Publication date
USRE45508E1 (en) 2015-05-05
US7066856B1 (en) 2006-06-27
USRE44379E1 (en) 2013-07-16

Similar Documents

Publication Publication Date Title
US6979013B2 (en) Bicycle foldable to align front and rear wheels along a transverse direction of the bicycle
US4657272A (en) Wheeled vehicle
US20080188336A1 (en) Bicycle sprocket apparatus with a chain support structure
EP0479138A1 (en) Steering bearing assembly for wheeled vehicle
US5226341A (en) Handlebar kit using bicycle U-lock
US5056700A (en) Automobile mountable bicycle carrier
US5007260A (en) Bicycle locking system
US3412820A (en) Endless track attachment for motorcycles
US4108460A (en) Amplified cycle steering system
US4436232A (en) Bracket for motorcycle lock
US6874586B2 (en) Track assembly for an all-terrain vehicle
US6079726A (en) Direct drive bicycle
US4507105A (en) Bicycle chainguard
US7669871B2 (en) Bicycle wheel securing adapter and bicycle fork using the same
US4390927A (en) Bicycle flashlight holder
US4700963A (en) Variable angle steering system
JP3714953B2 (en) Bicycle torque coupling
EP0682885A1 (en) Device for retaining a helmet on the occiput
US20070117666A1 (en) Front derailleur with mounting fixture
US6450909B1 (en) Bicycle front chainwheel assembly
US7503239B2 (en) Bicycle crank arm assembly
US6176538B1 (en) Detachable windshield for motorcycles
US4154452A (en) Bicycle safety accessory
US6165092A (en) Guide assembly for a bicycle
CA1229858A (en) Bar steps for a small-sized vehicle

Legal Events

Date Code Title Description
RF Reissue application filed

Effective date: 20110606

CC Certificate of correction
CC Certificate of correction