GB2451647A - A belt drive bicycle frame with an eccentric bottom bracket - Google Patents
A belt drive bicycle frame with an eccentric bottom bracket Download PDFInfo
- Publication number
- GB2451647A GB2451647A GB0715328A GB0715328A GB2451647A GB 2451647 A GB2451647 A GB 2451647A GB 0715328 A GB0715328 A GB 0715328A GB 0715328 A GB0715328 A GB 0715328A GB 2451647 A GB2451647 A GB 2451647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bottom bracket
- bicycle frame
- eccentric
- eccentric bottom
- tube
- 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.)
- Granted
Links
- 238000013461 design Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/003—Combination of crank axles and bearings housed in the bottom bracket
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/34—Bottom brackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/16—Tensioning or adjusting equipment for chains, belts or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The frame 20 comprises a tube 21 in which is mounted a bottom bracket 30 with an eccentric shaft and bearing assembly 50 with a co-rotating belt pulley and pedal cranks. The bottom bracket 30 can be adjusted angularly in the frame tube 21 for belt tensioning and/or height variation to suit a rider's leg length and fixed in position by a clamping action provided by a protruding screw 40 mounted in a radial hole 32 in the bracket 30 and movable along an arcuate slot 22 in the tube 21.
Description
BELT DRIVE BICYCLE FRAME WITH AN ECCENTRIC BOTTOM
BRACKET
BACKGROUND OF THE INYENTJON
Field of the Invention
The present invention relates to a bicycle frame, and more particularly to a belt drive bicycle frame with an eccentric bottom bracket which can adjust the height of the bearing assembly according to the different leg lengths and fine adjust the tightness of the belt through the horizontal adjustment of the eccentric bottom bracket.
DescriDtion of the Prior Art
Recently, more and more kinds of bicycles have been being developed on the market, and according to the drive device, they can be classified into the two types of chain drive type and belt drive type. The advantages of the belt drive bicycle are clean, oil free and foldable etc, so the belt drive technology is continuously applied to the new bicycle products. Thereby, in order to make the adjustment and correction of each kind of products much more convenient, the recent research and development personnel adopts various technology solutions to carry out the development.
Referring to Fig. 1, a bicycle frame 10 for a common belt drive bicycle comprises a tube 11. A bottom bracket 12 is installed in the tube 11, and a bearing assembly 13 is pivotally disposed at the central axis of the bottom bracket 12. The bearing assembly 13 is used to connect with and drive the pedals (dashed line) and belt drive disc (not shown). Though the abovementioned design has been put into service, it still has the following problems: I. The bearing assembly 13 is pivotally disposed at the central axis of the bottom bracket 12, if the leg length of the rider is not suitable for the leg length design of this bicycle frame 10, and the distance between the saddle 14 a.nd the bearing assembly 13 is excessively long or excessively short, they all make this bicycle frame 10 not meet the ergonomical requirements, thus causing the ache and discomfort in the body of the rider.
2. The bearing assembly 13 is pivotally disposed at the central axis of the bottom bracket 12, so the belt drive disc (not shown) is retained at the central axis of the bottom bracket 12. Thereby, it is difficult to adjust and change the tightness of the belt.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a belt drive bicycle frame with an eccentric bottom bracket which can adjust the height of the bearing assembly according to the different leg lengths.
In order to achieve the abovementioned objective, the bearing assembly is disposed in the eccentric shaft seat located in the eccentric bottom bracket to indirectly drive the belt, and the cylindrical eccentric bottom bracket can freely rotate in the bicycle frame. By such arrangements, the eccentric bottom bracket of the present invention can rotate 180 degrees to change the height of the bearing assembly, thus raising or lowering the pedals to carry out the height adjustment according to the different leg lengths.
The second objective of the present invention is to provide a belt drive bicycle frame with an eccentric bottom bracket which can fine adjust the tightness of the belt.
In order to achieve the abovementioned objective, the present invention comprises a bicycle frame with a driving belt, an eccentric bottom bracket, a bearing assembly and a positioning assembly. The cylindrical eccentric bottom bracket can freely rotate in the bicycle frame and be positioned by the positioning assembly.
With the positioning assembly, the eccentric bottom bracket of the present invention can rotate a predetermined angle under the restriction of the positioning assembly, to adjust the horizontal position of the bearing assembly, thus fine adjusting the tightness of the driving belt.
The positioning assembly can be a restricting screw element to cooperate with an arc-shaped restricting hole formed in the tube of the bicycle frame. The restricting screw element can be radially installed on the eccentric bottom bracket, and the protruding restricting screw element can press against and position the arc-shaped restricting hole. If the restricting screw element is loosened, the user can rotate the eccentric bottom bracket according to the requirements, under the restriction of arc-shaped restricting hole. if a predetennined pressing force is applied to the restricting screw element, but the belt transmits an excessive force, the eccentric bottom bracket will automatically rotate to avoid the rupture of the belt.
In addition, another design of the positioning assembly is to form two arc-shaped restricting grooves in the periphery of the tube of the bicycle frame to cooperate with the protruding restricting element at the periphery of the eccentric bottom bracket. The protruding restricting element can be restricted by the arc-shaped restricting groove.
The abovementioned cylindrical eccentric bottom bracket can freely rotate in the bicycle frame, and it is positioned in the tube of the bicycle frame by use of a stopping ring at one end thereof and a thread portion used together with a locking ring at the other end thereof.
BRIEF DESCRIPTION OF ThE DRAWINGS
Fig. 1 is a plan view of a conventional bicycle structure; Fig. 2 is an exploded view of a belt drive bicycle frame with an eccentric bottom bracket in accordance with the present invention; Fig. 3 is a perspective view of showing that the belt drive bicycle frame with an eccentric bottom bracket in accordance with the present invention is adjusted according to a relatively short leg length requirement; Fig. 4 is a perspective view of showing that the belt drive bicycle frame with an eccentric bottom bracket in accordance with the present invention is adjusted according to a relatively long leg length requirement; Fig. 5 is a horizontal adjustment view of the belt drive bicycle frame with an eccentric bottom bracket in accordance with the present invention; Fig. 6 is another horizontal adjustment view of the belt drive bicycle frame with an eccentric bottom bracket in accordance with the present invention; and Fig. 7 shows another positioning assembly in accordance with the present invention.
1)ETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
Referring to Figs. 2-5, a belt drive bicycle frame with an eccentric bottom bracket in accordance with a preferred embodiment of the present invention comprises a bicycle frame 20, an eccentric bottom bracket 30, a restricting screw element 40, a bearing assembly 50, a driving belt 60, a belt pulley 61 and two pedals 62.
The bicycle frame 20 is formed with a tube 21 located correspondingly to a pedaling position of a user, and the tube 21 is formed with an arc-shaped restricting hole 22 located in an outer surface thereof.
The eccentric bottom bracket 30 is a cylindrical structure shaped correspondingly to the inner surface of thó tube 21 of the bicycle frame 20 and formed with a through eccentric shaft seat 31 in an axial direction thereof. Moreover, the eccentric bottom bracket 30 is formed with two opposite radial screw holes 32 in the outer surface located correspondingly to the offset direction of the eccentric shaft seat 31. The two screw holes 32 are aligned with the arc-shaped restricting hole 22 of the bicycle frame 20. One end of the eccentric bottom bracket 30 is disposed with a stopping ring 33 the diameter of which is bigger than the inside diameter of the tube 21, and the other end of the eccentric bottom bracket 30 is disposed with a thread portion 34 and a locking ring 35. The eccentric bottom bracket 30 is pivotally -s---disposed in the tube 21 of the bicycle frame 20 by use of the stopping ring 33 and the locking ring 35.
The restricting screw element 40 is one of the embodiments of the positioning assembly in accordance with the present invention. After it is inserted through the arc-shaped restricting hole 22 of the bicycle frame 20, the restricting screw element 40 will be screwed in the radial screw holes 32 of the eccentric bottom bracket 30. The protruding restricting screw element 40 is used to press against and position the eccentric bottom bracket 30, and the arc-shaped restricting hole 22 utilizes the restricting screw element 40 to restrict the eccentric bottom bracket 30 to rotate within a predetermined angle range.
The bearing assembly 50 is fixed in the eccentric shaft seat 31 of the eccentric bottom bracket 30, and a belt pulley 61 with the driving belt 60 is installed on the bearing assembly 50. Each end of the bearing assembly 50 is fixed with a pedal 62.
The aforementioned is the key technology and the summary of the positional and structural relationship of the respective components of the preferred embodiment in accordance with the present invention.
For a better understanding of the present invention, its operation and function, reference should be made to the following description: When the present invention is adjusted according to the leg length requirements: Referring to Figs. 3-4, the eccentric bottom bracket 30 of the present invention is formed with a through eccentric shaft seat 31 in an axial direction thereof, the bearing assembly 50 is fixed in the eccentric shaft seat 31 of the eccentric bottom bracket 30, and a belt pulley 61 with the driving belt 60 is installed on the bearing assembly 50, so the eccentric shaft seat 31 of the eccentric bottom bracket 30 can be offset to the highest or the lowest positions, so as to make the bearing assembly 50 offset to the upper position ( as shown in Fig. 3) and the lower position (as shown in Fig. 4). And finally, the restricting screw element 40 is used to press against and position the eccentric bottom bracket 30.
At this moment, the present invention can be adjusted according to the leg length of the user (the eccentric shaft seat 31 is offset to the highest position or the lowest position). Thereby, it is a real innovative technology for offering the adjustment function to meet the requirements of different leg lengths.
When the belt tightness is adjusted in accordance with the present invention: The eccentric frame 30 is formed with two opposite radial screw holes 32 in an outer surface located in the offset direction of the eccentric shaft seat 31, and the two screw holes 32 are aligned with the arc-shaped restricting hole 22 of the bicycle frame 20. After the restricting screw element 40 is inserted through the arc-shaped restricting hole 22 of the bicycle frame 20, it will be screwed in the radial screw holes 32 of the eccentric bottom bracket 30. Thereby, not only the protruding restricting screw element 40 can be used to press against and position the eccentric bottom bracket 30, but also it can be used to restrict the eccentric bottom bracket within a predetermined angle range by being unscrewed.
At this moment, since the opposite radial screw holes 32 are formed in an offset direction of the eccentric shaft seat 31, rotating within a predetermined angle range will produce a horizontai displacement of the eccentric shaft seat 31 of the eccentric bottom bracket 30 (as shown in Figs. 5-6), which will drive the belt pulley 61 to tighten or loosen the driving belt 60, thus effectively achieving the objective of simply adjusting the tightness of the belt 60.
In addition, when a predetermined pressing force is applied to the restricting screw element 40, if the belt 60 transmits an excessive force which exceeds the pressing force of the restricting screw element 40, the eccentric bottom bracket 30 will automatically rotate. Such an automatic tightness adjustment method can prevent the belt 60 from being too tight.
It is to be noted that, as shown in Fig. 7 which shows another embodiment of the positioning assembly in accordance with the present invention, the tube 21 of the bicycle frame 20 is formed with a protruding restricting element B at the periphery thereof, and the stopping ring 33 of the eccentric bottom bracket 30 is formed with two opposite arc-shaped restricting grooves A in the periphery thereof The two arc-shaped restricting grooves A open outwards correspondingly to the offset direction of the eccentric shaft seat 31. By such arrangements, the protruding restricting element B can also utilize either arc-shaped restricting groove A to restrict the rotating angle, thus effectively controlling the rotating angle of the eccentric bottom bracket 30.
The abovementioned positioning assembly can be changed, both in the restricting angle and the fixing position, and it is not limited to a single assembly, a combination of multiple assemblies or a positioning structure integrally formed on other assembly.
To summarize, the belt drive bicycle frame with an eccentric bottom bracket of the present invention comprises a bicycle frame with a driving belt, an eccentric bottom bracket, a bearing assembly and a positioning assembly.
The eccentric shaft seat in the eccentric bottom bracket is used to install the bearing assembly which indirectly drives the belt, and the eccentric bottom bracket can freely rotate in the bicycle frame and is positioned by the positioning assembly.
By such arrangements, the eccentric bottom bracket of the present invention can be rotated and positioned to change the height of the bearing assembly, thus achieving the objective of offering the adjustment function according to the leg length. In addition, with the horizontal adjustment of the eccentric bottom bracket, the belt tightness can be fine adjusted.
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention. -01.
Claims (3)
- WHAT IS CLAIMED IS: 1. A belt drive bicycle frame with an eccentric bottom bracket comprising: a bicycle frame disposed with a tube; an eccentric bottom bracket being installed in the tube of the bicycle frame and formed with an eccentric shaft seat in an axial direction thereof, and a bearing assembly being assembled in the eccentric shaft seat and positioned at a predetermined angle according to the requirement, a belt pulley with a driving belt being installed on the bearing assembly, and each end of the bearing assembly being disposed with a pedal.
- 2. The belt drive bicycle frame with an eccentric bottom bracket as claimed in claim I further comprising: a restricting screw element and a positioning assembly; wherein: the bicycle frame is formed with the tube located correspondingly to a pedaling position of a user, and the tube is formed with an arc-shaped restricting hole in an outer surface thereof, and the positioning assembly is mounted on an outer surface of the eccentric bottom bracket and protruded from the arc-shaped restricting hole of the bicycle frame, and the arc-shaped restricting hole utilizes the positioning assembly to restrict the eccentric bottom bracket to rotate within a predetermined angle range.
- 3. A belt drive bicycle frame substantially as hereinbefore described with reference to and as shown in Figures 2 to 6 of the accompanying drawings. * S. S. S * IS a... * * Se_SSC..... * SSS.....S S S... I... (33. The belt drive bicycle frame with an eccentric bottom bracket as claimed in claim 2, wherein the eccentric bottom bracket is formed with two opposite radial screw holes in an outer surface thereof located correspondingly to an offset direction of the eccentric shaft seat, and the two screw holes are aligned with the arc-shaped restricting hole, the positioning assembly is a restricting screw element which is screwed in the radial screw hole of the eccentric bottom bracket after being inserted through the arc-shaped hole of the bicycle frame.4. The belt drive bicycle frame with an eccentric bottom bracket as claimed in claim 1, wherein one end of the ecceniric bottom bracket is disposed with a stopping ring which is bigger than the tube, and the other end of the eccentric ring is disposed with a thread portion and a locking ring, the eccentric bottom bracket is pivotally positioned in the tube of the bicycle frame by use of the stopping ring and the locking ring.5. The belt drive bicycle frame with an eccentric bottom bracket as claimed in claim 4, wherein the positioning assembly is a protruding restricting element formed on a periphery of the tube of bicycle frame, in a periphery of the stopping ring of the eccentric bottom bracket is formed two opposite arc-shaped restricting grooves which open outwards correspondingly to an offset direction of the eccentric shaft seat, the protruding restricting element restricts a rotating angle of the eccentric bottom bracket.6. A belt drive bicycle frame substantially as hereinbefore described with reference to and as shown in Figures 2 to 7 of the accompanying drawings.* Amendments to the claims have been filed as follows * WHATISCLAIMEDIS: 1. A belt drive bicycle frame with an eccentric bottom bracket comprising: a bicycle frame including a tube located at a position corresponding to a pedaling position of a user, the tube being formed with an arc-shaped restricting slot in an outer surface thereof; an eccentric bottom bracket located in the tube of the bicycle frame and formed with an eccentric shaft seat extending in an axial direction thereof, the eccentric bottom bracket being formed with two opposite radial screw holes in an outer surface thereof at positions corresponding to an offset direction of the eccentric shaft seat, and the two screw holes being aligned with the arc-shaped restricting slot in the tube; and a bearing assembly disposed in the eccentric shaft seat and movable angularly relative to the eccentric shaft seat, a belt pulley with a driving belt installed on the bearing assembly, and each end of the bearing assembly carrying a pedal; and a positioning assembly mounted on an outer surface of the eccentric bottom bracket and protruding from the arc-shaped restricting slot of the bicycle frame, the * ** :: positioning assembly comprising a screw which is screwed into one of the radial screw holes of the eccentric bottom bracket after being inserted throug1 the * S. IS* : arc-shaped restricting slot which cooperates with the positioning assembly to restrict 20... the range of angular movement of the eccentric bottom bracket. S...2. The belt drive bicycle frame with an eccentric bottom bracket as claimed in claim 1, wherein one end of the eccentric bottom bracket is provided with a stopping ring which is bigger than the tube, and the other end of the eccentric ring is provided with a threaded portion and a locking ring, the eccentric bottom bracket being pivotally positioned in the tube of the bicycle frame by use of the stopping ring and the locking ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0715328A GB2451647B (en) | 2007-08-06 | 2007-08-06 | Belt drive bicycle frame with an eccentric bottom bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0715328A GB2451647B (en) | 2007-08-06 | 2007-08-06 | Belt drive bicycle frame with an eccentric bottom bracket |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0715328D0 GB0715328D0 (en) | 2007-09-19 |
| GB2451647A true GB2451647A (en) | 2009-02-11 |
| GB2451647B GB2451647B (en) | 2009-06-17 |
Family
ID=38543136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0715328A Expired - Fee Related GB2451647B (en) | 2007-08-06 | 2007-08-06 | Belt drive bicycle frame with an eccentric bottom bracket |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2451647B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009039402A1 (en) | 2009-08-31 | 2011-03-03 | Harter, Thomas, Dipl.-Ing. | Bottom bracket arrangement for adjusting e.g. tension of operative line of belt of bicycle, has indicator for displaying distance around which housing and retainer are positioned relative to each other |
| US7918474B2 (en) * | 2009-02-20 | 2011-04-05 | Trek Bicycle Corporation | Bicycle dropout assembly |
| WO2014047629A1 (en) * | 2012-09-24 | 2014-03-27 | Faraday Bicycles, Inc. | Electric bicycle |
| WO2018010131A1 (en) * | 2016-07-14 | 2018-01-18 | 赖森标 | Adjustable five-way mechanism |
| AT523345A3 (en) * | 2018-11-14 | 2022-12-15 | Plastic Innovation Gmbh | Connection device for a bicycle frame |
| WO2023232604A1 (en) * | 2022-06-02 | 2023-12-07 | Porsche Ebike Performance Gmbh | Bicycle and method for operating a bicycle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US697944A (en) * | 1900-01-24 | 1902-04-15 | Frederic I Johnson | Crank-shaft bearing of bicycles. |
| GB301993A (en) * | 1927-09-29 | 1928-12-13 | John Chater Chater Lea | Improvements in or relating to pedal gearing and the like |
| GB690893A (en) * | 1951-02-14 | 1953-04-29 | Francis & Barnett Ltd | Improvements in cycle bottom brackets |
| GB1558841A (en) * | 1978-01-05 | 1980-01-09 | Hayes R C | Drive adjustment means |
| US4808147A (en) * | 1987-06-03 | 1989-02-28 | Cannondale Corporation | Adjustable bottom bracket assembly for bicycles |
| DE4403464A1 (en) * | 1994-02-04 | 1995-08-10 | Dietrich Gerhard Ellsaeser | Maintenance-free drive for bicycle |
| US6895834B1 (en) * | 2002-10-04 | 2005-05-24 | Racer-Mate, Inc. | Adjustable crank for bicycles |
| NL1027308C2 (en) * | 2004-10-21 | 2006-04-26 | Innobike B V | Bicycle, has eccentric chain tensioning mechanism in which chain wheel associated with pedals is mounted via bracket sleeve inside eccentric cavity in bicycle frame |
| US20060189426A1 (en) * | 2005-02-18 | 2006-08-24 | Chris Dodman | Eccentric bracket assembly |
| CN2863630Y (en) * | 2006-01-06 | 2007-01-31 | 项明 | Bicycle eccentric chain regulating apparatus |
-
2007
- 2007-08-06 GB GB0715328A patent/GB2451647B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US697944A (en) * | 1900-01-24 | 1902-04-15 | Frederic I Johnson | Crank-shaft bearing of bicycles. |
| GB301993A (en) * | 1927-09-29 | 1928-12-13 | John Chater Chater Lea | Improvements in or relating to pedal gearing and the like |
| GB690893A (en) * | 1951-02-14 | 1953-04-29 | Francis & Barnett Ltd | Improvements in cycle bottom brackets |
| GB1558841A (en) * | 1978-01-05 | 1980-01-09 | Hayes R C | Drive adjustment means |
| US4808147A (en) * | 1987-06-03 | 1989-02-28 | Cannondale Corporation | Adjustable bottom bracket assembly for bicycles |
| DE4403464A1 (en) * | 1994-02-04 | 1995-08-10 | Dietrich Gerhard Ellsaeser | Maintenance-free drive for bicycle |
| US6895834B1 (en) * | 2002-10-04 | 2005-05-24 | Racer-Mate, Inc. | Adjustable crank for bicycles |
| NL1027308C2 (en) * | 2004-10-21 | 2006-04-26 | Innobike B V | Bicycle, has eccentric chain tensioning mechanism in which chain wheel associated with pedals is mounted via bracket sleeve inside eccentric cavity in bicycle frame |
| US20060189426A1 (en) * | 2005-02-18 | 2006-08-24 | Chris Dodman | Eccentric bracket assembly |
| CN2863630Y (en) * | 2006-01-06 | 2007-01-31 | 项明 | Bicycle eccentric chain regulating apparatus |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7918474B2 (en) * | 2009-02-20 | 2011-04-05 | Trek Bicycle Corporation | Bicycle dropout assembly |
| DE102009039402A1 (en) | 2009-08-31 | 2011-03-03 | Harter, Thomas, Dipl.-Ing. | Bottom bracket arrangement for adjusting e.g. tension of operative line of belt of bicycle, has indicator for displaying distance around which housing and retainer are positioned relative to each other |
| US8960702B2 (en) | 2011-09-22 | 2015-02-24 | Faraday Bicycles, Inc. | Electric bicycle |
| WO2014047629A1 (en) * | 2012-09-24 | 2014-03-27 | Faraday Bicycles, Inc. | Electric bicycle |
| WO2018010131A1 (en) * | 2016-07-14 | 2018-01-18 | 赖森标 | Adjustable five-way mechanism |
| US11479319B2 (en) | 2016-07-14 | 2022-10-25 | Sen-Piao Lai | Adjustable bottom bracket mechanism |
| AT523345A3 (en) * | 2018-11-14 | 2022-12-15 | Plastic Innovation Gmbh | Connection device for a bicycle frame |
| WO2023232604A1 (en) * | 2022-06-02 | 2023-12-07 | Porsche Ebike Performance Gmbh | Bicycle and method for operating a bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2451647B (en) | 2009-06-17 |
| GB0715328D0 (en) | 2007-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20210806 |