TWI707802B - Bicycle rear sprocket assembly and bicycle drive train - Google Patents
Bicycle rear sprocket assembly and bicycle drive train Download PDFInfo
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- TWI707802B TWI707802B TW107116090A TW107116090A TWI707802B TW I707802 B TWI707802 B TW I707802B TW 107116090 A TW107116090 A TW 107116090A TW 107116090 A TW107116090 A TW 107116090A TW I707802 B TWI707802 B TW I707802B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
- B60B27/047—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets comprising a freewheel mechanisms
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- 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
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
-
- 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
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
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- 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
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/124—Mechanisms for shifting laterally
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- 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
- B62M2009/005—Details of transmission chains specially adapted for bicycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Gears, Cams (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
本發明係關於一種自行車後鏈輪總成及一種自行車傳動系統。 The invention relates to a bicycle rear sprocket assembly and a bicycle transmission system.
騎車正變成更日益流行的消遣形式以及交通方式。此外,騎車已變為業餘及專業人員兩者的非常流行競技運動。不論自行車是用於消遣、交通抑或是用於競賽,自行車行業正不斷地改良自行車之各種組件。已經充分重新設計之一個自行車組件為鏈輪總成。 Cycling is becoming an increasingly popular form of pastime and transportation. In addition, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. One bicycle component that has been fully redesigned is the sprocket assembly.
根據本發明之一第一態樣,一種自行車後鏈輪總成經構形以安裝至一自行車後輪轂總成之一鏈輪支撐主體。該自行車後鏈輪總成包含複數個自行車鏈輪。該複數個自行車鏈輪包含一第一鏈輪及一第二鏈輪。該第一鏈輪包括一第一開口,該第一開口具有小於該自行車後輪轂總成之該鏈輪支撐主體之一最小外徑的一第一最小直徑。該第二鏈輪包括一第二開口及至少十個內部花鍵齒。該第二開口具有一第二最小直徑,該第二最小直徑等於或大於該自行車後輪轂總成之該鏈輪支撐主體之該最小外徑。該至少十個內部花鍵齒經構形以與該自行車後輪轂總成之該鏈輪支撐主體嚙合。 According to a first aspect of the present invention, a bicycle rear sprocket assembly is configured to be mounted to a sprocket support body of a bicycle rear hub assembly. The bicycle rear sprocket assembly includes a plurality of bicycle sprockets. The plurality of bicycle sprockets include a first sprocket and a second sprocket. The first sprocket includes a first opening having a first minimum diameter smaller than a minimum outer diameter of the sprocket support body of the bicycle rear hub assembly. The second sprocket includes a second opening and at least ten internal spline teeth. The second opening has a second minimum diameter that is equal to or greater than the minimum outer diameter of the sprocket support body of the bicycle rear wheel hub assembly. The at least ten internal spline teeth are configured to engage with the sprocket support body of the bicycle rear hub assembly.
在根據第一態樣之自行車後鏈輪總成之情況下,第一最小直徑允許 第一鏈輪具有更小節圓直徑。此實現自行車後鏈輪總成之更寬齒輪範圍。此外,相比包括九個或更少內部花鍵齒之鏈輪,第二鏈輪之至少十個內部花鍵齒減小施加至至少十個內部花鍵齒中之每一者的旋轉力。此提高第二鏈輪之耐久性及/或提高選擇第二鏈輪之材料之自由度,而不降低第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the first aspect, the first minimum diameter allows The first sprocket has a smaller pitch circle diameter. This realizes a wider gear range of the bicycle rear sprocket assembly. In addition, the at least ten internal spline teeth of the second sprocket reduces the rotational force applied to each of the at least ten internal spline teeth compared to a sprocket including nine or less internal spline teeth. This improves the durability of the second sprocket and/or increases the degree of freedom in choosing the material of the second sprocket without reducing the durability of the second sprocket.
根據本發明之一第二態樣,根據該第一態樣之自行車後鏈輪總成進一步包含一鎖定構件。該鎖定構件包括一管狀主體、一外螺紋部分及一徑向突出物。該管狀主體在該自行車後鏈輪總成安裝至該自行車後輪轂總成之一狀態下延伸穿過該第一鏈輪之該第一開口。該管狀主體包括一第一軸向端及一第二軸向端。該第二軸向端相對於該自行車後鏈輪總成之一旋轉中心軸線在一軸向方向上與該第一軸向端相對。在該自行車後鏈輪總成安裝至該自行車後輪轂總成之該狀態下,該第一軸向端經定位成比該第二軸向端更接近該自行車後輪轂總成之一軸向中心平面。該外螺紋部分提供至該第一軸向端,以在該自行車後鏈輪總成安裝至該自行車後輪轂總成之該狀態下與該自行車後輪轂總成之該鏈輪支撐主體之一內螺紋部分嚙合。該徑向突出物相對於該旋轉中心軸線自該第二軸向端徑向向外延伸,以在該自行車後鏈輪總成安裝至該自行車後輪轂總成之該狀態下限制該第一鏈輪相對於該自行車後輪轂總成之該鏈輪支撐主體的一軸向移動。 According to a second aspect of the present invention, the bicycle rear sprocket assembly according to the first aspect further includes a locking member. The locking member includes a tubular body, an external thread part and a radial protrusion. The tubular body extends through the first opening of the first sprocket in a state where the bicycle rear sprocket assembly is mounted to the bicycle rear hub assembly. The tubular body includes a first axial end and a second axial end. The second axial end is opposite to the first axial end in an axial direction with respect to a rotation center axis of the bicycle rear sprocket assembly. In the state where the bicycle rear sprocket assembly is mounted to the bicycle rear hub assembly, the first axial end is positioned closer to an axial center of the bicycle rear hub assembly than the second axial end flat. The external thread portion is provided to the first axial end to be in a state in which the bicycle rear sprocket assembly is mounted to the bicycle rear hub assembly in one of the sprocket support bodies of the bicycle rear hub assembly The threaded part engages. The radial protrusion extends radially outward from the second axial end with respect to the rotation center axis to restrict the first chain in the state where the bicycle rear sprocket assembly is mounted to the bicycle rear hub assembly An axial movement of the wheel relative to the sprocket supporting body of the bicycle rear wheel hub assembly.
在根據第二態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the second aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第三態樣,根據該第二態樣之自行車後鏈輪總成經構形以使得該第一鏈輪包括一第一向內側;及一第一向外側,其在該軸向方向上與該第一向內側相對。該徑向突出物經構形以在該第一向外側中鄰 接該第一鏈輪。 According to a third aspect of the present invention, the bicycle rear sprocket assembly according to the second aspect is configured such that the first sprocket includes a first inner side; and a first outer side, which is in the The axial direction is opposite to the first inner side. The radial protrusion is configured to abut in the first outward Connect the first sprocket.
在根據第三態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the third aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第四態樣,根據該第一態樣至該第三態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪相對於該自行車後鏈輪總成之一旋轉中心軸線在一軸向方向上鄰近於該第一鏈輪,而在該第一鏈輪與該第二鏈輪之間無另一鏈輪。 According to a fourth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the third aspect is configured such that: the second sprocket is relative to the bicycle rear chain A rotation center axis of the wheel assembly is adjacent to the first sprocket in an axial direction, and there is no other sprocket between the first sprocket and the second sprocket.
在根據第四態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the fourth aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第五態樣,根據該第一態樣至該第四態樣中任一項之自行車後鏈輪總成經構形以使得:該第一鏈輪包括一第一向內側;及一第一向外側,其相對於該自行車後鏈輪總成之一旋轉中心軸線在一軸向方向上與該第一向內側相對。該第一鏈輪包括提供至該第一向內側以直接地或間接地將一踩踏扭矩傳遞至該鏈輪支撐主體之一第一扭矩傳遞結構。 According to a fifth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the fourth aspect is configured such that: the first sprocket includes a first inner side ; And a first outward side, which is opposite to the first inward side in an axial direction relative to a rotation center axis of the bicycle rear sprocket assembly. The first sprocket includes a first torque transmission structure provided to the first inner side to directly or indirectly transmit a pedaling torque to the sprocket support body.
在根據第五態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the fifth aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第六態樣,根據該第五態樣之自行車後鏈輪總成經構形以使得:該第一扭矩傳遞結構包括至少十個第一扭矩傳遞齒。 According to a sixth aspect of the present invention, the bicycle rear sprocket assembly according to the fifth aspect is configured such that the first torque transmission structure includes at least ten first torque transmission teeth.
在根據第六態樣之自行車後鏈輪總成之情況下,相比包括九個或更少內部花鍵齒之鏈輪,第一鏈輪之十個第一扭矩傳遞齒減小施加至至少十個第一扭矩傳遞齒中之每一者的旋轉力。此提高第一鏈輪之耐久性及/或提高選擇第一鏈輪之材料之自由度,而不降低第一鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the sixth aspect, compared to a sprocket including nine or less internal spline teeth, the ten first torque transmitting teeth of the first sprocket are reduced to at least The rotational force of each of the ten first torque transmission teeth. This improves the durability of the first sprocket and/or increases the degree of freedom in selecting the material of the first sprocket, without reducing the durability of the first sprocket.
根據本發明之一第七態樣,根據該第六態樣之自行車後鏈輪總成經 構形以使得:該至少十個第一扭矩傳遞齒之一總數目等於或大於20。 According to a seventh aspect of the present invention, the bicycle rear sprocket assembly according to the sixth aspect is It is configured such that the total number of one of the at least ten first torque transmitting teeth is equal to or greater than 20.
在根據第七態樣之自行車後鏈輪總成之情況下,有可能提高第一鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the seventh aspect, it is possible to improve the durability of the first sprocket.
根據本發明之一第八態樣,根據該第一態樣至該第七態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒之一總數目等於或大於20。 According to an eighth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the seventh aspect is configured such that: the at least ten inner portions of the second sprocket The total number of spline teeth is equal to or greater than 20.
在根據第八態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the eighth aspect, it is possible to improve the durability of the second sprocket.
根據本發明之一第九態樣,根據該第八態樣之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒之該總數目等於或大於28。 According to a ninth aspect of the present invention, the bicycle rear sprocket assembly according to the eighth aspect is configured such that: the total number of the at least ten internal spline teeth of the second sprocket is equal to or greater than 28.
在根據第九態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the ninth aspect, it is possible to improve the durability of the second sprocket.
根據本發明之一第十態樣,根據該第一態樣至該第九態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒具有一第一內部周節角及不同於該第一內部周節角之一第二內部周節角。 According to a tenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the ninth aspect is configured such that: the at least ten inner portions of the second sprocket The spline tooth has a first inner circumferential pitch angle and a second inner circumferential pitch angle different from the first inner circumferential pitch angle.
在根據第十態樣之自行車後鏈輪總成之情況下,有可能易於在正確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the tenth aspect, it is possible to easily attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第十一態樣,根據該第一態樣至該第十態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒中之至少一者具有一第一花鍵形狀,該第一花鍵形狀不同於該至少十個內部花鍵齒中之另一者的一第二花鍵形狀。 According to an eleventh aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the tenth aspect is configured such that: the at least ten of the second sprocket At least one of the internal spline teeth has a first spline shape that is different from a second spline shape of another one of the at least ten internal spline teeth.
在根據第十一態樣之自行車後鏈輪總成之情況下,有可能易於在正 確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the eleventh aspect, it may be easy to Attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第十二態樣,根據該第一態樣至該第十一態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒中之至少一者具有一第一花鍵大小,該第一花鍵大小不同於該至少十個內部花鍵齒中之另一者的一第二花鍵大小。 According to a twelfth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the eleventh aspect is configured such that: the at least ten of the second sprocket At least one of the internal spline teeth has a first spline size that is different from a second spline size of the other of the at least ten internal spline teeth.
在根據第十二態樣之自行車後鏈輪總成之情況下,有可能易於在正確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the twelfth aspect, it is possible to easily attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第十三態樣,根據該第一態樣至該第十二態樣中任一項之自行車後鏈輪總成經構形以使得:該第一鏈輪之一總齒數等於或小於10。 According to a thirteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twelfth aspect is configured such that: a total number of teeth of the first sprocket Equal to or less than 10.
在根據第十三態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the thirteenth aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第十四態樣,根據該第一態樣至該第十三態樣中任一項之自行車後鏈輪總成經構形以使得:該第一鏈輪為該自行車後鏈輪總成中之最小鏈輪。 According to a fourteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the thirteenth aspect is configured such that: the first sprocket is the bicycle rear The smallest sprocket in the sprocket assembly.
在根據第十四態樣之自行車後鏈輪總成之情況下,有可能將更小鏈輪安裝至自行車後輪轂總成。此實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the fourteenth aspect, it is possible to install a smaller sprocket to the bicycle rear hub assembly. This realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第十五態樣,根據該第一態樣至該第十四態樣中任一項之自行車後鏈輪總成進一步包含:一鏈輪支撐構件,其包括經構形以與該自行車後輪轂總成之該鏈輪支撐主體嚙合的至少十個內部花鍵齒。該複數個自行車鏈輪包含經構形以附接至該鏈輪支撐構件之一額外鏈輪。 According to a fifteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the fourteenth aspect further includes: a sprocket support member, which includes a sprocket supporting member configured to At least ten internal spline teeth meshed with the sprocket support body of the bicycle rear wheel hub assembly. The plurality of bicycle sprockets include an additional sprocket that is configured to be attached to the sprocket support member.
在根據第十五態樣之自行車後鏈輪總成之情況下,有可能減輕自行車後鏈輪總成之重量。 In the case of the bicycle rear sprocket assembly according to the fifteenth aspect, it is possible to reduce the weight of the bicycle rear sprocket assembly.
根據本發明之一第十六態樣,根據該第十五態樣自行車後鏈輪總成經構形以使得:該額外鏈輪之一總齒數等於或大於46。 According to a sixteenth aspect of the present invention, according to the fifteenth aspect, the bicycle rear sprocket assembly is configured such that the total number of teeth of the additional sprocket is 46 or more.
在根據第十六態樣之自行車後鏈輪總成之情況下,額外鏈輪實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the sixteenth aspect, the additional sprocket realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第十七態樣,根據該第十五態樣中之自行車後鏈輪總成經構形以使得:該額外鏈輪之一總齒數等於或大於50。 According to a seventeenth aspect of the present invention, the bicycle rear sprocket assembly according to the fifteenth aspect is configured such that the total number of teeth of the additional sprocket is equal to or greater than 50.
在根據第十七態樣之自行車後鏈輪總成之情況下,額外鏈輪實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the seventeenth aspect, the additional sprocket realizes a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第十八態樣,根據該第一態樣至該第十七態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪包含作為該第二鏈輪提供之複數個第二鏈輪。該複數個第二鏈輪各自包括經構形以與該自行車後輪轂總成之該鏈輪支撐主體嚙合的至少十個內部花鍵齒。 According to an eighteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the seventeenth aspect is configured such that: the plurality of bicycle sprockets include as the A plurality of second sprockets provided by the second sprocket. Each of the plurality of second sprockets includes at least ten internal spline teeth that are configured to mesh with the sprocket support body of the bicycle rear hub assembly.
在根據第十八態樣之自行車後鏈輪總成之情況下,有可能提高複數個第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the eighteenth aspect, it is possible to improve the durability of a plurality of second sprockets.
根據本發明之一第十九態樣,根據該第十八態樣之自行車後鏈輪總成進一步包含:一鏈輪支撐構件,其包括經構形以與該自行車後輪轂總成之該鏈輪支撐主體嚙合的至少十個內部花鍵齒。該複數個自行車鏈輪包括經構形以附接至該鏈輪支撐構件之一額外鏈輪。 According to a nineteenth aspect of the present invention, the bicycle rear sprocket assembly according to the eighteenth aspect further includes: a sprocket support member that includes the chain that is configured to interact with the bicycle rear hub assembly The wheel supports at least ten internal spline teeth engaged by the main body. The plurality of bicycle sprockets includes an additional sprocket that is configured to be attached to the sprocket support member.
在根據第十九態樣之自行車後鏈輪總成之情況下,有可能減輕自行車後鏈輪總成之重量。 In the case of the bicycle rear sprocket assembly according to the nineteenth aspect, it is possible to reduce the weight of the bicycle rear sprocket assembly.
根據本發明之一第二十態樣,根據該第一態樣至該第十九態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪之一總數目等於或大於10。 According to a twentieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the nineteenth aspect is configured such that: a total of the plurality of bicycle sprockets The mesh is equal to or greater than 10.
在根據第二十態樣之自行車後鏈輪總成之情況下,有可能提高自行車後鏈輪總成之速度級別。 In the case of the bicycle rear sprocket assembly according to the twentieth aspect, it is possible to increase the speed level of the bicycle rear sprocket assembly.
根據本發明之一第二十一態樣,根據該第一態樣至該第二十態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪之一總數目等於或大於11。 According to a twenty-first aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twentieth aspect is configured such that: one of the plurality of bicycle sprockets The total number is equal to or greater than 11.
在根據第二十一態樣之自行車後鏈輪總成之情況下,有可能進一步提高自行車後鏈輪總成之速度級別。 In the case of the bicycle rear sprocket assembly according to the twenty-first aspect, it is possible to further increase the speed level of the bicycle rear sprocket assembly.
根據本發明之一第二十二態樣,根據該第一態樣至該第二十一態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪之一總數目等於或大於12。 According to a twenty-second aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twenty-first aspect is configured such that: of the plurality of bicycle sprockets A total number is equal to or greater than 12.
在根據第二十二態樣之自行車後鏈輪總成之情況下,有可能進一步提高自行車後鏈輪總成之速度級別。 In the case of the bicycle rear sprocket assembly according to the twenty-second aspect, it is possible to further increase the speed level of the bicycle rear sprocket assembly.
根據本發明之一第二十三態樣,根據該第一態樣至該第二十二態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪包含具有一最大齒尖直徑之一額外鏈輪。該第二鏈輪之該至少十個內部花鍵齒具有一內部花鍵頂徑。該內部花鍵頂徑對該最大齒尖直徑之一比率範圍介於0.15至0.18。 According to a twenty-third aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twenty-second aspect is configured such that: the plurality of bicycle sprockets include An additional sprocket with one of the largest tooth tip diameters. The at least ten internal spline teeth of the second sprocket have an internal spline top diameter. The ratio of the inner spline tip diameter to the largest tooth tip diameter ranges from 0.15 to 0.18.
在根據第二十三態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-third aspect, it is possible to improve the durability of the second sprocket while realizing a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第二十四態樣,根據該第一態樣至該第二十三態樣中任一項之自行車後鏈輪總成進一步包含一額外鏈輪。該額外鏈輪包括:至少一個第一移位促進區域,其用以促進一自行車鏈自該額外鏈輪移位至一相鄰更小鏈輪之一第一移位操作;及至少一個第二移位促進區域,其用 以促進該自行車鏈自該相鄰更小鏈輪移位至該額外鏈輪之一第二移位操作。 According to a twenty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twenty-third aspect further includes an additional sprocket. The additional sprocket includes: at least one first displacement promoting area for promoting a first displacement operation of a bicycle chain from the additional sprocket to an adjacent smaller sprocket; and at least one second Displacement promotion area, its use To promote the bicycle chain to shift from the adjacent smaller sprocket to the second shift operation of one of the additional sprocket.
在根據第二十四態樣之自行車後鏈輪總成之情況下,有可能順利進行第一移位操作及第二移位操作。 In the case of the bicycle rear sprocket assembly according to the twenty-fourth aspect, it is possible to smoothly perform the first shifting operation and the second shifting operation.
根據本發明之一第二十五態樣,根據該第二態樣或該第三態樣之自行車後鏈輪總成經構形以使得:該管狀主體具有等於或小於27mm之一第一外徑。 According to a twenty-fifth aspect of the present invention, the bicycle rear sprocket assembly according to the second aspect or the third aspect is configured such that: the tubular body has a first outer diameter equal to or less than 27 mm path.
在根據第二十五態樣之自行車後鏈輪總成之情況下,有可能藉由鎖定構件相對於自行車後輪轂總成固持自行車後鏈輪總成且實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-fifth aspect, it is possible to hold the bicycle rear sprocket assembly relative to the bicycle rear hub assembly by the locking member and realize a wider bicycle rear sprocket assembly Gear range.
根據本發明之一第二十六態樣,根據該第二十五態樣之自行車後鏈輪總成經構形以使得:該第一外徑等於或大於26mm。 According to a twenty-sixth aspect of the present invention, the bicycle rear sprocket assembly according to the twenty-fifth aspect is configured such that the first outer diameter is equal to or greater than 26 mm.
在根據第二十六態樣之自行車後鏈輪總成之情況下,有可能維持或提高鎖定構件之強度,同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-sixth aspect, it is possible to maintain or increase the strength of the locking member while realizing a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第二十七態樣,根據該第二態樣、該第三態樣、該第二十五態樣或該第二十六態樣之自行車後鏈輪總成經構形以使得:該徑向突出物具有等於或小於32mm之一第二外徑。 According to a twenty-seventh aspect of the present invention, the bicycle rear sprocket assembly is configured according to the second aspect, the third aspect, the twenty-fifth aspect, or the twenty-sixth aspect So that: the radial protrusion has a second outer diameter equal to or less than 32 mm.
在根據第二十七態樣之自行車後鏈輪總成之情況下,有可能藉由鎖定構件相對於自行車後輪轂總成固持自行車後鏈輪總成且實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-seventh aspect, it is possible to hold the bicycle rear sprocket assembly relative to the bicycle rear hub assembly by the locking member and realize a wider bicycle rear sprocket assembly Gear range.
根據本發明之一第二十八態樣,根據該第二十七態樣之自行車後鏈輪總成經構形以使得:該第二外徑等於或大於30mm。 According to a twenty-eighth aspect of the present invention, the bicycle rear sprocket assembly according to the twenty-seventh aspect is configured such that the second outer diameter is equal to or greater than 30 mm.
在根據第二十八態樣之自行車後鏈輪總成之情況下,有可能維持或 提高鎖定構件之強度,同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-eighth aspect, it is possible to maintain or Improve the strength of the locking member and realize a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第二十九態樣,根據該第二態樣、該第三態樣及該第二十五至該第二十八態樣中任一項之自行車後鏈輪總成經構形以使得:該鎖定構件具有一工具嚙合部分。 According to a twenty-ninth aspect of the present invention, the bicycle rear sprocket assembly according to the second aspect, the third aspect, and any one of the twenty-fifth to the twenty-eighth aspect It is configured such that the locking member has a tool engaging portion.
在根據第二十九態樣之自行車後鏈輪總成之情況下,有可能藉由使用工具嚙合部分來易於附接鎖定構件。 In the case of the bicycle rear sprocket assembly according to the twenty-ninth aspect, it is possible to easily attach the locking member by using the tool engagement portion.
根據本發明之一第三十態樣,根據該第一態樣至該第二十九態樣中任一項之自行車後鏈輪總成經構形以使得:該複數個自行車鏈輪作為該第一鏈輪提供之複數個第一鏈輪及作為該第二鏈輪提供之複數個第二鏈輪。該複數個第一鏈輪各自包括該第一開口。該複數個第二鏈輪各自包括該第二開口及經構形以與該自行車後輪轂總成之該鏈輪支撐主體嚙合的該至少十個內部花鍵齒。 According to a thirtieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the twenty-ninth aspect is configured such that: the plurality of bicycle sprockets serve as the A plurality of first sprockets provided by the first sprocket and a plurality of second sprockets provided as the second sprocket. Each of the plurality of first sprockets includes the first opening. Each of the plurality of second sprockets includes the second opening and the at least ten internal spline teeth that are configured to mesh with the sprocket support body of the bicycle rear wheel hub assembly.
在根據第三十態樣之自行車後鏈輪總成之情況下,複數個第一鏈輪及複數個第二鏈輪實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the thirtieth aspect, a plurality of first sprockets and a plurality of second sprockets realize a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第三十一態樣,根據該第十五態樣之自行車後鏈輪總成經構形以使得:該額外鏈輪藉由黏著劑附接至該鏈輪支撐構件。 According to a thirty-first aspect of the present invention, the bicycle rear sprocket assembly according to the fifteenth aspect is configured such that the additional sprocket is attached to the sprocket support member by an adhesive.
在根據第三十一態樣之自行車後鏈輪總成之情況下,由於不使用任何金屬緊固件,有可能進一步減輕自行車後鏈輪總成之重量。 In the case of the bicycle rear sprocket assembly according to the thirty-first aspect, since no metal fasteners are used, it is possible to further reduce the weight of the bicycle rear sprocket assembly.
根據本發明之一第三十二態樣,根據該第十五態樣或該第三十一態樣之自行車後鏈輪總成經構形以使得:該鏈輪支撐構件由包括一樹脂材料之一非金屬材料製成。 According to a thirty-second aspect of the present invention, the bicycle rear sprocket assembly according to the fifteenth aspect or the thirty-first aspect is configured such that: the sprocket support member is made of a resin material One is made of non-metallic materials.
在根據第三十二態樣之自行車後鏈輪總成之情況下,有可能進一步減輕自行車後鏈輪總成之重量。 In the case of the bicycle rear sprocket assembly according to the thirty-second aspect, it is possible to further reduce the weight of the bicycle rear sprocket assembly.
根據本發明之一第三十三態樣,根據該第一態樣至該第三十二態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒中的至少兩個內部花鍵齒相對於該自行車後鏈輪總成之一旋轉中心軸線以一第一內部周節角沿圓周配置。該第一內部周節角範圍介於5度至36度。 According to a thirty-third aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the thirty-second aspect is configured such that: the second sprocket At least two of the at least ten internal spline teeth are circumferentially arranged at a first internal pitch angle relative to a rotation center axis of the bicycle rear sprocket assembly. The first inner circumferential pitch angle ranges from 5 degrees to 36 degrees.
在根據第三十三態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the thirty-third aspect, it is possible to improve the durability of the second sprocket.
根據本發明之一第三十四態樣,根據該第三十三態樣之自行車後鏈輪總成經構形以使得:該第一內部周節角範圍介於10度至20度。 According to a thirty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-third aspect is configured such that the first inner circumferential pitch angle ranges from 10 degrees to 20 degrees.
在根據第三十四態樣之自行車後鏈輪總成之情況下,有可能進一步提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the thirty-fourth aspect, it is possible to further improve the durability of the second sprocket.
根據本發明之一第三十五態樣,根據該第三十四態樣之自行車後鏈輪總成經構形以使得:該第一內部周節角等於或小於15度。 According to a thirty-fifth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-fourth aspect is configured such that the first inner circumferential pitch angle is equal to or less than 15 degrees.
在根據第三十五態樣之自行車後鏈輪總成之情況下,有可能進一步提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the thirty-fifth aspect, it is possible to further improve the durability of the second sprocket.
根據本發明之一第三十六態樣,根據該第三十三態樣至該第三十五態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒中的至少其他兩個內部花鍵齒相對於該旋轉中心軸線以一第二內部周節角沿圓周配置。該第二內部周節角不同於該第一內部周節角。 According to a thirty-sixth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the thirty-third aspect to the thirty-fifth aspect is configured such that: the second sprocket Among the at least ten internal spline teeth, at least two other internal spline teeth are arranged along the circumference with a second internal pitch angle relative to the rotation center axis. The second inner circumferential pitch angle is different from the first inner circumferential pitch angle.
在根據第三十六態樣之自行車後鏈輪總成之情況下,有可能易於在正確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the thirty-sixth aspect, it is possible to easily attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第三十七態樣,根據該第一態樣至該第三十六態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內 部花鍵齒具有等於或小於34mm之一內部花鍵頂徑。 According to a thirty-seventh aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the thirty-sixth aspect is configured such that: the second sprocket At least ten The partial spline teeth have an internal spline tip diameter equal to or less than 34mm.
在根據第三十七態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-seventh aspect, it is possible to improve the durability of the second sprocket while realizing a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第三十八態樣,根據該第三十七態樣之自行車後鏈輪總成經構形以使得:該第二鏈輪之該內部花鍵頂徑等於或小於33mm。 According to a thirty-eighth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-seventh aspect is configured such that the top diameter of the inner spline of the second sprocket is equal to or less than 33 mm.
在根據第三十八態樣之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-eighth aspect, it is possible to improve the durability of the second sprocket while realizing a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第三十九態樣,根據該第三十七態樣或該第三十八態樣之自行車後鏈輪總成經構形以使得:該第二鏈輪之該內部花鍵頂徑等於或大於29mm。 According to a thirty-ninth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-seventh aspect or the thirty-eighth aspect is configured such that: the inner flower of the second sprocket The key top diameter is equal to or greater than 29mm.
在根據第三十九之自行車後鏈輪總成之情況下,有可能提高第二鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the 39th, it is possible to improve the durability of the second sprocket.
根據本發明之一第四十態樣,根據該第一態樣至該第三十九態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒具有等於或小於32mm之一內部花鍵底徑。 According to a fortieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the thirty-ninth aspect is configured such that: the at least the second sprocket Ten internal spline teeth have an internal spline bottom diameter equal to or less than 32mm.
在根據第四十態樣之自行車後鏈輪總成之情況下,內部花鍵頂徑可增大至少一個內部花鍵齒之傳動表面之徑向長度。此提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the fortieth aspect, the top diameter of the inner spline can increase the radial length of the transmission surface of at least one inner spline tooth. This increases the strength of the second sprocket.
根據本發明之一第四十一態樣,根據該第四十態樣之自行車後鏈輪總成經構形以使得:該內部花鍵底徑等於或小於31mm。 According to a forty-first aspect of the present invention, the bicycle rear sprocket assembly according to the fortieth aspect is configured such that the inner spline bottom diameter is equal to or less than 31 mm.
在根據第四十一態樣之自行車後鏈輪總成之情況下,內部花鍵頂徑可進一步增大至少一個內部花鍵齒之傳動表面之徑向長度。此提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the 41st aspect, the top diameter of the inner spline can further increase the radial length of the transmission surface of at least one inner spline tooth. This increases the strength of the second sprocket.
根據本發明之一第四十二態樣,根據該第四十態樣或該第四十一態樣之自行車後鏈輪總成經構形以使得:該內部花鍵底徑等於或大於28mm。 According to a forty-second aspect of the present invention, the bicycle rear sprocket assembly according to the fortieth aspect or the forty-first aspect is configured such that: the inner spline bottom diameter is equal to or greater than 28 mm .
在根據第四十二態樣之自行車後鏈輪總成之情況下,有可能獲得鏈輪支撐主體之必需強度。 In the case of the bicycle rear sprocket assembly according to the forty-second aspect, it is possible to obtain the necessary strength for the sprocket to support the main body.
根據本發明之一第四十三態樣,根據該第一態樣至該第四十二態樣中任一項之自行車後鏈輪總成經構形以使得:該至少十個內部花鍵齒包括用以在踩踏期間接收來自該自行車後輪轂總成之一傳動旋轉力的複數個內部花鍵傳動表面。該複數個內部花鍵傳動表面各自包括一徑向最外邊緣、一徑向最內邊緣及自該徑向最外邊緣至該徑向最內邊緣界定之一徑向長度。該複數個內部花鍵傳動表面之該等徑向長度之一總和等於或大於7mm。 According to a forty-third aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the forty-second aspect is configured such that: the at least ten internal splines The teeth include a plurality of internal spline transmission surfaces to receive the transmission rotational force from one of the bicycle rear hub assemblies during pedaling. Each of the plurality of inner spline transmission surfaces includes a radially outermost edge, a radially innermost edge, and a radial length defined from the radially outermost edge to the radially innermost edge. The sum of one of the radial lengths of the plurality of internal spline transmission surfaces is equal to or greater than 7 mm.
在根據第四十三態樣之自行車後鏈輪總成之情況下,有可能增大複數個內部花鍵傳動表面之徑向長度。此提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the forty-third aspect, it is possible to increase the radial length of the plurality of internal spline transmission surfaces. This increases the strength of the second sprocket.
根據本發明之一第四十四態樣,根據該第四十三態樣之自行車後鏈輪總成經構形以使得:該等徑向長度之該總和等於或大於10mm。 According to a forty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to the forty-third aspect is configured such that the sum of the radial lengths is equal to or greater than 10 mm.
在根據第四十四態樣之自行車後鏈輪總成之情況下,有可能進一步增大複數個內部花鍵傳動表面之徑向長度。此提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the forty-fourth aspect, it is possible to further increase the radial length of the plurality of internal spline transmission surfaces. This increases the strength of the second sprocket.
根據本發明之一第四十五態樣,根據該第四十三態樣之自行車後鏈輪總成經構形以使得:該等徑向長度之該總和等於或大於15mm。 According to a forty-fifth aspect of the present invention, the bicycle rear sprocket assembly according to the forty-third aspect is configured such that the sum of the radial lengths is equal to or greater than 15 mm.
在根據第四十五態樣之自行車後鏈輪總成之情況下,有可能進一步增大複數個內部花鍵傳動表面之徑向長度。此提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the forty-fifth aspect, it is possible to further increase the radial length of the plurality of internal spline transmission surfaces. This increases the strength of the second sprocket.
根據本發明之一第四十六態樣,根據該四十三態樣至該第四十五態 樣中任一項之自行車後鏈輪總成經構形以使得:該等徑向長度之該總和等於或小於36mm。 According to a forty-sixth aspect of the present invention, according to the forty-third aspect to the forty-fifth aspect The bicycle rear sprocket assembly of any one of these is configured such that: the sum of the radial lengths is equal to or less than 36 mm.
在根據第四十六態樣之自行車後鏈輪總成之情況下,有可能進一步提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the 46th aspect, it is possible to further increase the productivity of the bicycle rear sprocket assembly.
根據本發明之一第四十七態樣,根據該第一態樣至該第四十六態樣中任一項之自行車後鏈輪總成經構形以使得:該至少十個內部花鍵齒中之至少一者包括:一內部花鍵傳動表面,其具有界定於該內部花鍵傳動表面與一第一徑向線之間的一第一內部花鍵表面角,該第一徑向線自該自行車後鏈輪總成之一旋轉中心軸線延伸至該內部花鍵傳動表面之一徑向最外邊緣。該第一內部花鍵表面角範圍介於0度至6度。 According to a forty-seventh aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the forty-sixth aspect is configured such that: the at least ten internal splines At least one of the teeth includes: an internal spline transmission surface having a first internal spline surface angle defined between the internal spline transmission surface and a first radial line, the first radial line A rotation center axis of the rear sprocket assembly of the bicycle extends to a radially outermost edge of the inner spline transmission surface. The surface angle of the first internal spline ranges from 0 degrees to 6 degrees.
在根據第四十七態樣之自行車後鏈輪總成之情況下,有可能提高內部花鍵傳動表面之強度。 In the case of the bicycle rear sprocket assembly according to the 47th aspect, it is possible to increase the strength of the internal spline transmission surface.
根據本發明之一第四十八態樣,根據該第四十七態樣之自行車後鏈輪總成經構形以使得:該至少十個內部花鍵齒中之該至少一者包括:一內部花鍵非傳動表面,其具有界定於該內部花鍵非傳動表面與一第二徑向線之間的一第二內部花鍵表面角,該第二徑向線自該自行車後鏈輪總成之該旋轉中心軸線延伸至該內部花鍵非傳動表面之一徑向最外邊緣。該第二內部花鍵表面角範圍介於0度至6度。 According to a forty-eighth aspect of the present invention, the bicycle rear sprocket assembly according to the forty-seventh aspect is configured such that: the at least one of the at least ten internal spline teeth includes: a The inner spline non-transmission surface has a second inner spline surface angle defined between the inner spline non-transmission surface and a second radial line from the bicycle rear sprocket. The rotation center axis is formed to extend to the radially outermost edge of a non-transmission surface of the inner spline. The surface angle of the second internal spline ranges from 0 degrees to 6 degrees.
在根據第四十八態樣之自行車後鏈輪總成之情況下,由於內部花鍵齒之對稱形狀,有可能提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the forty-eighth aspect, due to the symmetrical shape of the internal spline teeth, it is possible to increase the productivity of the bicycle rear sprocket assembly.
根據本發明之一第四十九態樣,根據該第一態樣至該第四十八態樣中任一項之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒中之至少一者相對於一參考線沿圓周對稱,該參考線相對於該旋 轉中心軸線在一徑向方向上自該旋轉中心軸線延伸至該至少十個內部花鍵齒中之該至少一者之一徑向最外端的一圓周中心點。 According to a forty-ninth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the forty-eighth aspect is configured such that: the second sprocket At least one of the at least ten internal spline teeth is circumferentially symmetrical with respect to a reference line, which The rotation center axis extends from the rotation center axis in a radial direction to a circumferential center point of the radially outermost end of the at least one of the at least ten internal spline teeth.
在根據第四十九態樣之自行車後鏈輪總成之情況下,由於內部花鍵齒之對稱形狀,有可能提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the forty-ninth aspect, due to the symmetrical shape of the internal spline teeth, it is possible to increase the productivity of the bicycle rear sprocket assembly.
根據本發明之一第五十態樣,一種自行車傳動系統包含如第一態樣至第四十九態樣中任一項之自行車後鏈輪總成及一自行車後輪轂總成。該自行車後輪轂總成包含:一輪轂軸,其包括具有等於或大於13mm之一最小內徑的一軸通孔;一輪轂主體,其圍繞該自行車後輪轂總成之一旋轉中心軸線可旋轉地安裝於該輪轂軸上;及一鏈輪支撐主體,其圍繞該旋轉中心軸線可旋轉地安裝於該輪轂軸上。 According to a fiftieth aspect of the present invention, a bicycle transmission system includes the bicycle rear sprocket assembly and a bicycle rear hub assembly as in any one of the first aspect to the forty-ninth aspect. The bicycle rear wheel hub assembly includes: a hub axle including a shaft through hole having a minimum inner diameter equal to or greater than 13mm; a hub body which is rotatably installed around a rotation center axis of the bicycle rear hub assembly On the hub shaft; and a sprocket support body, which is rotatably mounted on the hub shaft around the rotation center axis.
在根據第五十態樣之自行車傳動系統之情況下,有可能在後輪周圍提高自行車傳動系統之強度,同時實現自行車後鏈輪總成之更寬齒輪範圍。 In the case of the bicycle transmission system according to the fiftieth aspect, it is possible to increase the strength of the bicycle transmission system around the rear wheel while realizing a wider gear range of the bicycle rear sprocket assembly.
根據本發明之一第五十一態樣,根據該第五十態樣之自行車後鏈輪總成經構形以使得:該軸通孔之該最小內徑等於或大於14mm。 According to a fifty-first aspect of the present invention, the bicycle rear sprocket assembly according to the fiftieth aspect is configured such that the minimum inner diameter of the shaft through hole is equal to or greater than 14 mm.
在根據第五十一態樣之自行車傳動系統之情況下,有可能在後輪周圍進一步提高自行車傳動系統之強度。 In the case of the bicycle transmission system according to the fifty-first aspect, it is possible to further increase the strength of the bicycle transmission system around the rear wheel.
根據本發明之一第五十二態樣,根據該第五十態樣或該第五十一態樣之自行車後鏈輪總成經構形以使得:該軸通孔之該最小內徑等於或小於21mm。 According to a fifty-second aspect of the present invention, the bicycle rear sprocket assembly according to the fifty-first aspect or the fifty-first aspect is configured such that: the minimum inner diameter of the shaft through hole is equal to Or less than 21mm.
在根據第五十二態樣之自行車傳動系統之情況下,有可能提高自行車後輪轂總成之設計自由。 In the case of the bicycle transmission system according to the fifty-second aspect, it is possible to increase the design freedom of the bicycle rear wheel hub assembly.
根據本發明之一第五十三態樣,根據該第六態樣之自行車後鏈輪總 成經構形以使得:該至少十個第一扭矩傳遞齒之一總數目範圍介於22至24。 According to a fifty-third aspect of the present invention, the bicycle rear sprocket according to the sixth aspect It is configured such that the total number of one of the at least ten first torque transmitting teeth ranges from 22 to 24.
在根據第五十三態樣之自行車後鏈輪總成之情況下,至少十個第一扭矩傳遞齒之總數目提高第二鏈輪之耐久性,同時提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the fifty-third aspect, the total number of at least ten first torque transmitting teeth improves the durability of the second sprocket and at the same time increases the productivity of the bicycle rear sprocket assembly.
根據本發明之一第五十四態樣,根據該第一態樣之自行車後鏈輪總成經構形以使得:該第二鏈輪之該至少十個內部花鍵齒之一總數目範圍介於22至24。 According to a fifty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to the first aspect is configured such that: a total number range of one of the at least ten internal spline teeth of the second sprocket Between 22 and 24.
在根據第五十四態樣之自行車後鏈輪總成之情況下,至少十個第一扭矩傳遞齒之總數目提高第二鏈輪之耐久性,同時提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the fifty-fourth aspect, the total number of at least ten first torque transmitting teeth increases the durability of the second sprocket and at the same time increases the productivity of the bicycle rear sprocket assembly.
根據本發明之一第五十五態樣,根據該第三十三態樣之自行車後鏈輪總成經構形以使得:該第一內部周節角範圍介於13度至17度。 According to a fifty-fifth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-third aspect is configured such that the first inner circumferential pitch angle ranges from 13 degrees to 17 degrees.
在根據第五十五態樣之自行車後鏈輪總成之情況下,第一內部周節角提高第二鏈輪之耐久性,同時提高自行車後鏈輪總成之生產率。 In the case of the bicycle rear sprocket assembly according to the fifty-fifth aspect, the first inner pitch angle improves the durability of the second sprocket and at the same time increases the productivity of the bicycle rear sprocket assembly.
根據本發明之一第五十六態樣,根據該第三十六態樣之自行車後鏈輪總成經構形以使得:該第二內部周節角範圍介於28度至32度。 According to a fifty-sixth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-sixth aspect is configured such that the second inner circumferential pitch angle ranges from 28 degrees to 32 degrees.
在根據第五十六態樣之自行車後鏈輪總成之情況下,有可能易於在正確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the fifty-sixth aspect, it is possible to easily attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第五十七態樣,根據該第三十六態樣之自行車後鏈輪總成經構形以使得:該第一內部周節角為該第二內部周節角之一半。 According to a 57th aspect of the present invention, the bicycle rear sprocket assembly according to the 36th aspect is configured such that: the first inner circumferential pitch angle is half of the second inner circumferential pitch angle .
在根據第五十七態樣之自行車後鏈輪總成之情況下,有可能易於在正確圓周位置中將自行車後鏈輪總成附接至自行車後輪轂總成。 In the case of the bicycle rear sprocket assembly according to the 57th aspect, it is possible to easily attach the bicycle rear sprocket assembly to the bicycle rear hub assembly in the correct circumferential position.
根據本發明之一第五十八態樣,根據該第四十三態樣態樣之自行車後鏈輪總成經構形以使得:該複數個內部花鍵傳動表面之該等徑向長度的該總和範圍介於11mm至14mm。 According to a fifty-eighth aspect of the present invention, the bicycle rear sprocket assembly according to the forty-third aspect is configured such that the radial lengths of the plurality of internal spline transmission surfaces are The total range is between 11mm and 14mm.
在根據第五十八態樣之自行車後鏈輪總成之情況下,內部花鍵頂徑可增大至少一個內部花鍵齒之傳動表面之徑向長度。此在自行車後鏈輪總成之生產率提高之範圍內提高第二鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the fifty-eighth aspect, the top diameter of the inner spline can increase the radial length of the transmission surface of at least one inner spline tooth. This increases the strength of the second sprocket within the range of increased productivity of the bicycle rear sprocket assembly.
10:自行車傳動系統 10: Bicycle transmission system
12:自行車後輪轂總成 12: Bicycle rear wheel hub assembly
14:自行車後鏈輪總成 14: Bicycle rear sprocket assembly
16:自行車制動轉子 16: Bicycle brake rotor
18:曲柄總成 18: crank assembly
20:自行車鏈 20: Bicycle chain
22:曲柄軸 22: crankshaft
24:右曲柄臂 24: Right crank arm
26:左曲柄臂 26: Left crank arm
27:前鏈輪 27: front sprocket
28:鏈輪支撐主體 28: Sprocket support body
28A:內螺紋部分 28A: Internal thread part
28B:第一軸向端 28B: first axial end
28C:第二軸向端 28C: second axial end
28D:軸向鏈輪鄰接表面 28D: Abutment surface of axial sprocket
28E:鄰接件 28E: Adjacent piece
28G:導引部分 28G: Guiding part
28H:第一螺旋花鍵 28H: First spiral spline
28I:輪轂指示器 28I: Hub indicator
28P:外部周邊表面 28P: External peripheral surface
30:輪轂軸 30: Hub axle
30A:軸通孔 30A: Shaft through hole
30B:第一軸端 30B: First shaft end
30B1:第一軸向框架鄰接表面 30B1: First axial frame abutment surface
30C1:第二軸向框架鄰接表面 30C1: Second axial frame abutment surface
30C:第二軸端 30C: second shaft end
30X:軸管 30X: Shaft tube
30Y:第一軸部分 30Y: the first axis part
30Z:第二軸部分 30Z: The second shaft part
32:鎖定構件 32: Locking member
32A:管狀主體 32A: tubular body
32A1:內部周邊表面 32A1: inner peripheral surface
32B:外螺紋部分 32B: External thread part
32C:徑向突出物 32C: Radial protrusion
32D:第一軸向端 32D: first axial end
32E:第二軸向端 32E: second axial end
32F:工具嚙合部分 32F: Tool engagement part
32G:嚙合凹槽 32G: engagement groove
34:制動轉子支撐主體 34: Brake rotor support body
36:輪轂主體 36: Hub body
36A:第一輪輻安裝部分 36A: The first spoke installation part
36A1:第一附接孔 36A1: The first attachment hole
36B:第二輪輻安裝部分 36B: Second spoke installation part
36B1:第二附接孔 36B1: second attachment hole
36C:第一軸向最外部分 36C: The outermost part of the first axis
36D:第二軸向最外部分 36D: The outermost part of the second axis
36F:連接孔 36F: connecting hole
36H:自由輪外殼 36H: free wheel housing
36R:凹槽 36R: groove
36S:內部周邊表面 36S: inner peripheral surface
36T:第一齒 36T: first tooth
37:鏈輪支撐構件 37: Sprocket support member
37A:黏著劑 37A: Adhesive
38:間隔件 38: Spacer
38A:第一間隔件 38A: First spacer
38B:第二間隔件 38B: second spacer
38C:第三間隔件 38C: Third spacer
38D:第四間隔件 38D: Fourth spacer
38E:第五間隔件 38E: Fifth spacer
38F:第六間隔件 38F: Sixth spacer
38G:第七間隔件 38G: seventh spacer
39A:第一環 39A: First ring
39B:第二環 39B: second ring
40:外部花鍵齒 40: External spline tooth
40A:徑向最外端 40A: radial outermost end
40G:凹槽 40G: groove
40X:外部花鍵齒 40X: External spline tooth
41:基座支撐件 41: Base support
42:較大直徑部分 42: Larger diameter part
42A:軸向端 42A: Axial end
44:凸緣 44: flange
46:螺旋外部花鍵齒 46: Spiral external spline tooth
48:外部花鍵傳動表面 48: External spline transmission surface
48A:徑向最外邊緣 48A: radial outermost edge
48B:徑向最內邊緣 48B: radial innermost edge
50:外部花鍵非傳動表面 50: External spline non-transmission surface
50A:徑向最外邊緣 50A: radial outermost edge
50B:徑向最內邊緣 50B: radial innermost edge
50R:參考點 50R: reference point
52:額外外部花鍵齒 52: Extra external spline tooth
54:額外基座支撐件 54: Additional base support
60:輪轂嚙合部分 60: Wheel hub engagement part
62:支撐臂 62: Support arm
62A:第一附接部分 62A: The first attachment part
62B:第二附接部分 62B: second attachment part
62C:第三附接部分 62C: Third attachment part
62D:第四附接部分 62D: Fourth attachment part
62E:第五附接部分 62E: Fifth attachment part
62F:第六附接部分 62F: sixth attachment part
62G:第七附接部分 62G: seventh attachment part
62H:第八附接部分 62H: Eighth attachment part
63:第一扭矩傳遞齒 63: The first torque transmission tooth
64:內部花鍵齒 64: Internal spline tooth
64A:徑向最內端 64A: radial innermost end
64G:凹槽 64G: groove
65:內部花鍵齒 65: Internal spline tooth
66:內部花鍵傳動表面 66: Internal spline transmission surface
66A:徑向最外邊緣 66A: radial outermost edge
66B:徑向最內邊緣 66B: radial innermost edge
68:內部花鍵非傳動表面 68: Internal spline non-transmission surface
68A:徑向最外邊緣 68A: radial outermost edge
68B:徑向最內邊緣 68B: radial innermost edge
68R:參考點 68R: reference point
76:內部花鍵齒 76: Internal spline tooth
78:自由輪結構 78: Freewheel structure
79A:第一軸承 79A: First bearing
79B:第二軸承 79B: second bearing
80:第一棘輪構件 80: The first ratchet member
80A:第一棘輪齒 80A: first ratchet tooth
80H:第二螺旋花鍵 80H: second spiral spline
80H1:螺旋內部花鍵齒 80H1: Spiral internal spline tooth
80S:軸向表面 80S: axial surface
82:第二棘輪構件 82: Second ratchet member
82A:第二棘輪齒 82A: second ratchet tooth
82E:輪轂主體嚙合部分 82E: Hub body engaging part
82P:外部周邊表面 82P: External peripheral surface
82S:軸向表面 82S: Axial surface
82T:突出物 82T: protrusion
84:偏置構件 84: Biasing member
84A:捲曲主體 84A: Curled body
84B:連接端 84B: connecting end
86:間隔件 86: Spacer
86A:中間部分 86A: middle part
86B:連接部分 86B: connecting part
88:支撐構件 88: support member
90:滑動構件 90: Sliding member
92:額外偏置構件 92: Extra bias member
94:收納構件 94: Storage component
96:軸向收納部分 96: Axial storage part
98:徑向收納部分 98: Radial storage part
100:密封結構 100: Sealed structure
102:內部空間 102: internal space
A1:中心軸線 A1: Central axis
AG11:第一外部花鍵表面角 AG11: Surface angle of the first external spline
AG12:第二外部花鍵表面角 AG12: second external spline surface angle
AG21:第一內部花鍵表面角 AG21: First inner spline surface angle
AG22:第二內部花鍵表面角 AG22: second inner spline surface angle
AG28:鈍角 AG28: Obtuse angle
AL1:第一軸向長度 AL1: first axial length
AL2:第二軸向長度 AL2: second axial length
AL3:鏈輪配置軸向長度 AL3: Axial length of sprocket configuration
AL4:額外軸向長度 AL4: Extra axial length
AL5:較大直徑軸向長度 AL5: Axial length of larger diameter
BD1:最小內徑 BD1: Minimum inner diameter
BD2:最大外徑 BD2: Maximum outer diameter
BD3:最小外徑 BD3: Minimum outer diameter
BF:自行車框架 BF: Bicycle frame
BF1:第一框架 BF1: The first frame
BF2:第二框架 BF2: The second frame
BF11:第一凹槽 BF11: The first groove
BF12:第一部分 BF12: Part One
BF21:第二凹槽 BF21: second groove
BF22:第二部分 BF22: Part Two
CL1:參考線 CL1: Reference line
CL2:參考線 CL2: reference line
CP1:圓周中心點 CP1: Circle center point
CP2:圓周中心點 CP2: Circle center point
CPL:軸向中心平面 CPL: axial center plane
D1:圓周方向 D1: circumferential direction
D11:傳動旋轉方向 D11: Transmission rotation direction
D12:反向旋轉方向 D12: Reverse rotation direction
D2:軸向方向 D2: axial direction
D21:第一軸向方向 D21: First axial direction
D22:第二軸向方向 D22: second axial direction
DM11:外部花鍵頂徑 DM11: Top diameter of external spline
DM12:外部花鍵底徑 DM12: bottom diameter of external spline
DM13:外徑 DM13: Outer diameter
DM14:額外外部花鍵頂徑 DM14: Additional external spline top diameter
DM21:內部花鍵頂徑 DM21: Top diameter of internal spline
DM22:內部花鍵底徑 DM22: bottom diameter of internal spline
ED1:第一外徑 ED1: First outer diameter
ED2:第二外徑 ED2: second outer diameter
ED3:軸向寬度 ED3: Axial width
ED4:軸向長度 ED4: axial length
F1:傳動旋轉力 F1: Transmission rotation force
F2:推力 F2: thrust
F3:推力 F3: thrust
F5:偏置力 F5: Bias force
F6:旋轉摩擦力 F6: Rotating friction
III-III:線 III-III: Line
L11:第一徑向線 L11: First radial line
L12:第二徑向線 L12: Second radial line
L21:第一徑向線 L21: First radial line
L22:第二徑向線 L22: Second radial
MD1:第一最小直徑 MD1: The first smallest diameter
MD2:第一最小直徑 MD2: The first smallest diameter
MD3:第二最小直徑 MD3: second smallest diameter
MD4:第二最小直徑 MD4: Second smallest diameter
MD28:最小外徑 MD28: Minimum outer diameter
MW1:圓周最大寬度 MW1: Maximum width of circumference
MW2:圓周最大寬度 MW2: Maximum width of circumference
PA11:第一外部周節角 PA11: The first outer peripheral corner
PA12:第二外部周節角 PA12: Second outer circumferential corner
PA21:第一內部周節角 PA21: The first inner corner
PA22:第二內部周節角 PA22: The second inner circumferential corner
PC1:節圓 PC1: Pitch circle
PC2:節圓 PC2: Pitch circle
PC3:節圓 PC3: Pitch circle
PC4:節圓 PC4: Pitch circle
PC5:節圓 PC5: Pitch circle
PC6:節圓 PC6: Pitch circle
PC7:節圓 PC7: Pitch circle
PC8:節圓 PC8: Pitch circle
PC9:節圓 PC9: Pitch circle
PC10:節圓 PC10: Pitch circle
PC11:節圓 PC11: Pitch circle
PC12:節圓 PC12: Pitch circle
PCD1:節圓直徑 PCD1: Pitch circle diameter
PCD2:節圓直徑 PCD2: Pitch circle diameter
PCD3:節圓直徑 PCD3: Pitch circle diameter
PCD4:節圓直徑 PCD4: Pitch circle diameter
PCD5:節圓直徑 PCD5: Pitch circle diameter
PCD6:節圓直徑 PCD6: Pitch circle diameter
PCD7:節圓直徑 PCD7: Pitch circle diameter
PCD8:節圓直徑 PCD8: Pitch circle diameter
PCD9:節圓直徑 PCD9: Pitch circle diameter
PCD10:節圓直徑 PCD10: Pitch circle diameter
PCD11:節圓直徑 PCD11: Pitch circle diameter
PCD12:節圓直徑 PCD12: Pitch circle diameter
RC11:第一參考圓 RC11: The first reference circle
RC12:外部花鍵齒根圓 RC12: External spline tooth root circle
RC21:第二參考圓 RC21: Second reference circle
RC22:內部花鍵齒根圓 RC22: Internal spline tooth root circle
RL11:徑向長度 RL11: Radial length
RL12:額外徑向長度 RL12: Extra radial length
RL21:徑向長度 RL21: Radial length
RL22:額外徑向長度 RL22: Extra radial length
SK1:第一輪輻 SK1: first spoke
SK2:第二輪輻 SK2: second spoke
SL1:軸向花鍵齒長度 SL1: axial spline tooth length
SP1:第一鏈輪 SP1: First sprocket
SP1A:鏈輪主體 SP1A: Sprocket body
SP1B:鏈輪齒 SP1B: Sprocket
SP1G:第一向內側 SP1G: First to the inside
SP1H:第一向外側 SP1H: First to the outside
SP1I:鏈輪指示器 SP1I: Sprocket indicator
SP1K:第一開口 SP1K: first opening
SP1T:第一扭矩傳遞結構 SP1T: The first torque transmission structure
SP1T1:第一扭矩傳遞齒 SP1T1: The first torque transmission tooth
SP2:第一鏈輪 SP2: First sprocket
SP2A:鏈輪主體 SP2A: Sprocket body
SP2B:鏈輪齒 SP2B: Sprocket
SP2F1:第一移位促進區域 SP2F1: The first shift promotion area
SP2F2:第二移位促進區域 SP2F2: Second shift promotion area
SP2G:第一向外側 SP2G: First to the outside
SP2H:第一向內側 SP2H: First to the inside
SP2K:第一開口 SP2K: first opening
SP2M:第一扭矩傳遞結構 SP2M: The first torque transmission structure
SP2R1:第一移位促進凹槽 SP2R1: The first displacement promotes the groove
SP2R2:第二移位促進凹槽 SP2R2: The second displacement promotes the groove
SP2T:第二扭矩傳遞結構 SP2T: Second torque transmission structure
SP2T1:第二扭矩傳遞齒 SP2T1: second torque transmission tooth
SP3:第二鏈輪 SP3: second sprocket
SP3A:鏈輪主體 SP3A: Sprocket body
SP3B:鏈輪齒 SP3B: Sprocket
SP3F1:第一移位促進區域 SP3F1: The first shift promotion area
SP3F2:第二移位促進區域 SP3F2: Second shift promotion area
SP3K:第二開口 SP3K: second opening
SP3R1:第一移位促進凹槽 SP3R1: The first displacement promotes the groove
SP3R2:第二移位促進凹槽 SP3R2: Second displacement promotion groove
SP4:第二鏈輪 SP4: second sprocket
SP4A:鏈輪主體 SP4A: Sprocket body
SP4B:鏈輪齒 SP4B: Sprocket
SP4F1:第一移位促進區域 SP4F1: The first shift promotion area
SP4F2:第二移位促進區域 SP4F2: Second shift promotion area
SP4K:第二開口 SP4K: second opening
SP4R1:第一移位促進凹槽 SP4R1: The first displacement promotes the groove
SP4R2:第二移位促進凹槽 SP4R2: Second displacement promotion groove
SP5:額外鏈輪 SP5: Extra sprocket
SP5A:鏈輪主體 SP5A: Sprocket body
SP5B:鏈輪齒 SP5B: Sprocket
SP5F1:第一移位促進區域 SP5F1: The first shift promotion area
SP5F2:第二移位促進區域 SP5F2: Second shift promotion area
SP5R1:第一移位促進凹槽 SP5R1: The first displacement promotes the groove
SP5R2:第二移位促進凹槽 SP5R2: The second displacement promotes the groove
SP6:額外鏈輪 SP6: Extra sprocket
SP6A:鏈輪主體 SP6A: Sprocket body
SP6B:鏈輪齒 SP6B: Sprocket
SP6F1:第一移位促進區域 SP6F1: The first shift promotion area
SP6F2:第二移位促進區域 SP6F2: Second shift promotion area
SP6R1:第一移位促進凹槽 SP6R1: First displacement promotion groove
SP6R2:第二移位促進凹槽 SP6R2: Second displacement promotion groove
SP7:額外鏈輪 SP7: Extra sprocket
SP7A:鏈輪主體 SP7A: Sprocket body
SP7B:鏈輪齒 SP7B: Sprocket
SP7F1:第一移位促進區域 SP7F1: The first shift promotion area
SP7F2:第二移位促進區域 SP7F2: Second shift promotion area
SP7R1:第一移位促進凹槽 SP7R1: First displacement promotion groove
SP7R2:第二移位促進凹槽 SP7R2: The second shift promotes the groove
SP8:額外鏈輪 SP8: Extra sprocket
SP8A:鏈輪主體 SP8A: Sprocket body
SP8B:鏈輪齒 SP8B: Sprocket
SP8F1:第一移位促進區域 SP8F1: The first shift promotion area
SP8F2:第二移位促進區域 SP8F2: Second shift promotion area
SP8R1:第一移位促進凹槽 SP8R1: First displacement promotion groove
SP8R2:第二移位促進凹槽 SP8R2: Second displacement promotion groove
SP9:額外鏈輪 SP9: Extra sprocket
SP9A:鏈輪主體 SP9A: Sprocket body
SP9B:鏈輪齒 SP9B: Sprocket
SP9F1:第一移位促進區域 SP9F1: The first shift promotion area
SP9F2:第二移位促進區域 SP9F2: Second shift promotion area
SP9R1:第一移位促進凹槽 SP9R1: The first displacement promotes the groove
SP9R2:第二移位促進凹槽 SP9R2: Second shift to promote groove
SP10:額外鏈輪 SP10: Extra sprocket
SP10A:鏈輪主體 SP10A: Sprocket body
SP10B:鏈輪齒 SP10B: Sprocket
SP10F1:第一移位促進區域 SP10F1: The first shift promotion area
SP10F2:第二移位促進區域 SP10F2: Second shift promotion area
SP10R1:第一移位促進凹槽 SP10R1: First displacement promotion groove
SP10R2:第二移位促進凹槽 SP10R2: The second displacement promotes the groove
SP11:額外鏈輪 SP11: Extra sprocket
SP11A:鏈輪主體 SP11A: Sprocket body
SP11B:鏈輪齒 SP11B: Sprocket
SP11F1:第一移位促進區域 SP11F1: The first shift promotion area
SP11F2:第二移位促進區域 SP11F2: Second shift promotion area
SP11R1:第一移位促進凹槽 SP11R1: The first displacement promotes the groove
SP11R2:第二移位促進凹槽 SP11R2: The second displacement promotion groove
SP12:額外鏈輪 SP12: Extra sprocket
SP12A:鏈輪主體 SP12A: Sprocket body
SP12B:鏈輪齒 SP12B: Sprocket
SP12F1:第一移位促進區域 SP12F1: The first shift promotion area
SP12F2:第二移位促進區域 SP12F2: Second shift promotion area
SP12R1:第一移位促進凹槽 SP12R1: The first displacement promotes the groove
SP12R2:第二移位促進凹槽 SP12R2: The second displacement promotion groove
SP13:額外鏈輪 SP13: Extra sprocket
SP13A:鏈輪主體 SP13A: Sprocket body
SP13B:鏈輪齒 SP13B: Sprocket
SP13R:耦接構件 SP13R: coupling member
T1:踩踏扭矩 T1: pedaling torque
T2:惰轉扭矩 T2: idle torque
TD12:最大齒尖直徑 TD12: Maximum tooth tip diameter
WS:車輪緊固結構 WS: Wheel fastening structure
WS1:緊固桿 WS1: Fastening rod
XLV-XLV:線 XLV-XLV: line
當結合附圖考慮時,參考以下實施方式,本發明之更完整評價及其許多伴隨優點將易於獲得,同樣變為更好理解。 When considered in conjunction with the accompanying drawings, referring to the following embodiments, a more complete evaluation of the present invention and many of its accompanying advantages will be easily obtained, and it will also become a better understanding.
圖1為根據一實施例之自行車傳動系統的示意圖。 Fig. 1 is a schematic diagram of a bicycle transmission system according to an embodiment.
圖2為圖1中所說明之自行車傳動系統的分解透視圖。 Fig. 2 is an exploded perspective view of the bicycle transmission system illustrated in Fig. 1.
圖3為沿圖2之線III-III截取之自行車傳動系統的橫截面圖。 Fig. 3 is a cross-sectional view of the bicycle transmission system taken along the line III-III of Fig. 2.
圖4為圖2中所說明之自行車傳動系統之自行車後輪轂總成的透視圖,該自行車後輪轂總成具有自行車後鏈輪總成之鎖定構件。 4 is a perspective view of the bicycle rear hub assembly of the bicycle transmission system illustrated in FIG. 2, the bicycle rear hub assembly having a locking member of the bicycle rear sprocket assembly.
圖5為圖1中所說明之自行車傳動系統之自行車後鏈輪總成的側視圖。 5 is a side view of the bicycle rear sprocket assembly of the bicycle transmission system illustrated in FIG. 1.
圖6為圖4中所說明之自行車傳動系統的放大橫截面圖。 Fig. 6 is an enlarged cross-sectional view of the bicycle transmission system illustrated in Fig. 4.
圖7為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 7 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖8為圖5中所說明的自行車後鏈輪總成之鏈輪的側視圖。 Fig. 8 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖9為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 9 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖10為圖5中所說明之自行車後鏈輪總成之第一鏈輪的側視圖。 10 is a side view of the first sprocket of the bicycle rear sprocket assembly illustrated in FIG. 5.
圖11為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 11 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖12為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 12 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖13為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 13 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖14為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 14 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖15為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Figure 15 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Figure 5;
圖16為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Fig. 16 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖17為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Figure 17 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Figure 5;
圖18為圖5中所說明之自行車後鏈輪總成之鏈輪的側視圖。 Figure 18 is a side view of the sprocket of the bicycle rear sprocket assembly illustrated in Figure 5;
圖19為圖5中所說明之自行車後鏈輪總成的分解透視圖。 Fig. 19 is an exploded perspective view of the bicycle rear sprocket assembly illustrated in Fig. 5.
圖20為圖4中所說明之自行車後鏈輪總成之鏈輪支撐主體的透視圖。 20 is a perspective view of the sprocket supporting body of the bicycle rear sprocket assembly illustrated in FIG. 4.
圖21為圖4中所說明之自行車後輪轂總成之鏈輪支撐主體的另一透視圖。 Fig. 21 is another perspective view of the sprocket supporting body of the bicycle rear hub assembly illustrated in Fig. 4.
圖22為圖4中所說明之自行車後輪轂總成之鏈輪支撐主體的後視圖。 Fig. 22 is a rear view of the sprocket support body of the bicycle rear hub assembly illustrated in Fig. 4.
圖23為圖4中所說明之自行車後輪轂總成之鏈輪支撐主體的側視圖。 Fig. 23 is a side view of the sprocket supporting body of the bicycle rear hub assembly illustrated in Fig. 4.
圖24為根據修改之自行車後輪轂總成之鏈輪支撐主體的側視圖。 Figure 24 is a side view of the sprocket supporting body of the rear wheel hub assembly of the bicycle according to the modification.
圖25圖23中所說明之鏈輪支撐主體的放大橫截面圖。 Fig. 25 is an enlarged cross-sectional view of the sprocket support body illustrated in Fig. 23.
圖26為圖23中所說明之鏈輪支撐主體的橫截面圖。 Fig. 26 is a cross-sectional view of the sprocket supporting body illustrated in Fig. 23.
圖27為圖4中所說明之自行車後輪轂總成的透視圖。 Figure 27 is a perspective view of the bicycle rear hub assembly illustrated in Figure 4.
圖28為圖4中所說明之自行車後輪轂總成的側視圖。 Fig. 28 is a side view of the bicycle rear hub assembly illustrated in Fig. 4.
圖29為圖4中所說明之自行車後輪轂總成的後視圖。 Figure 29 is a rear view of the bicycle rear hub assembly illustrated in Figure 4;
圖30為圖4中所說明之自行車後輪轂總成之鏈輪支撐主體及複數個間隔件的分解透視圖。 Fig. 30 is an exploded perspective view of the sprocket support body and a plurality of spacers of the bicycle rear hub assembly illustrated in Fig. 4.
圖31為圖4中所說明之自行車傳動系統之部分放大截面視圖。 Fig. 31 is a partially enlarged cross-sectional view of the bicycle transmission system illustrated in Fig. 4.
圖32為圖8中所說明之鏈輪的另一側視圖。 Fig. 32 is another side view of the sprocket illustrated in Fig. 8.
圖33為圖9中所說明之鏈輪的側視圖。 Fig. 33 is a side view of the sprocket illustrated in Fig. 9.
圖34為根據修改之圖9中所說明之鏈輪的側視圖。 Fig. 34 is a side view of the sprocket illustrated in Fig. 9 according to a modification.
圖35為圖29中所說明之鏈輪的放大截面視圖。 Figure 35 is an enlarged cross-sectional view of the sprocket illustrated in Figure 29.
圖36為圖29中所說明之鏈輪的另一橫截面圖。 Figure 36 is another cross-sectional view of the sprocket illustrated in Figure 29.
圖37為圖2中所說明之自行車傳動系統的另一橫截面圖。 Fig. 37 is another cross-sectional view of the bicycle transmission system illustrated in Fig. 2.
圖38為圖7及圖8中所說明之鏈輪的分解透視圖。 Figure 38 is an exploded perspective view of the sprocket illustrated in Figures 7 and 8.
圖39為圖7及圖8中所說明之鏈輪的另一分解透視圖。 Fig. 39 is another exploded perspective view of the sprocket illustrated in Figs. 7 and 8.
圖40為圖4中所說明之自行車後輪轂總成之一部分的分解透視圖。 Fig. 40 is an exploded perspective view of a part of the bicycle rear hub assembly illustrated in Fig. 4.
圖41為圖40中所說明之自行車後輪轂總成之一部分的分解透視圖。 Figure 41 is an exploded perspective view of a part of the bicycle rear wheel hub assembly illustrated in Figure 40.
圖42為圖40中所說明之自行車後輪轂總成之一部分的分解透視圖。 42 is an exploded perspective view of a part of the bicycle rear hub assembly illustrated in FIG. 40.
圖43為圖40中所說明之自行車後輪轂總成之一部分的分解透視圖。 Figure 43 is an exploded perspective view of a part of the bicycle rear hub assembly illustrated in Figure 40.
圖44為圖40中所說明之自行車後輪轂總成的部分橫截面圖。 Figure 44 is a partial cross-sectional view of the bicycle rear wheel hub assembly illustrated in Figure 40.
圖45為沿著圖44之線XLV-XLV截取之自行車後輪轂總成的橫截面圖。 Figure 45 is a cross-sectional view of the bicycle rear wheel hub assembly taken along the line XLV-XLV of Figure 44.
圖46為圖40中所說明之自行車後輪轂總成之間隔件的透視圖。 Fig. 46 is a perspective view of the spacer of the bicycle rear hub assembly illustrated in Fig. 40;
圖47為圖40中所說明之自行車後輪轂總成之間隔件的另一透視圖。 Fig. 47 is another perspective view of the spacer of the bicycle rear hub assembly illustrated in Fig. 40;
圖48為展示圖40中所說明之自行車後輪轂後總成之第一棘輪構件及鏈輪支撐主體之動作(踩踏)的示意圖。 Fig. 48 is a schematic diagram showing the movement (pedaling) of the first ratchet member and the sprocket support body of the rear hub assembly of the bicycle illustrated in Fig. 40.
圖49為展示圖40中所說明之自行車後輪轂總成之第一棘輪構件及鏈輪支撐主體之作用(惰轉)的示意圖。 Fig. 49 is a schematic diagram showing the function (idling) of the first ratchet member and the sprocket support body of the bicycle rear hub assembly illustrated in Fig. 40.
圖50為根據修改之鏈輪支撐主體的放大橫截面圖。 Figure 50 is an enlarged cross-sectional view of the sprocket supporting body according to the modification.
圖51為根據修改之鏈輪的放大截面視圖。 Figure 51 is an enlarged cross-sectional view of the sprocket according to the modification.
圖52為根據修改之自行車後輪轂總成之鏈輪支撐主體的側視圖。 Figure 52 is a side view of the sprocket supporting body of the rear wheel hub assembly of the bicycle according to the modification.
圖53為圖52中所說明之鏈輪支撐主體的放大橫截面圖。 FIG. 53 is an enlarged cross-sectional view of the sprocket supporting body illustrated in FIG. 52. FIG.
圖54為根據修改之自行車後鏈輪總成之鏈輪的分解透視圖。 Figure 54 is an exploded perspective view of the sprocket of the bicycle rear sprocket assembly according to the modification.
圖55為根據修改之自行車後鏈輪總成之鏈輪的另一分解透視圖。 Figure 55 is another exploded perspective view of the sprocket of the bicycle rear sprocket assembly according to the modification.
圖56為根據修改之自行車後鏈輪總成之鏈輪的側視圖。 Figure 56 is a side view of the sprocket of the bicycle rear sprocket assembly according to the modification.
圖57為根據修改之自行車後鏈輪總成之鏈輪的側視圖。 Figure 57 is a side view of the sprocket of the bicycle rear sprocket assembly according to the modification.
圖58為根據修改之自行車後鏈輪總成之鏈輪的側視圖。 Figure 58 is a side view of the sprocket of the bicycle rear sprocket assembly according to the modification.
圖59為圖57中所說明之鏈輪的側視圖。 Figure 59 is a side view of the sprocket illustrated in Figure 57.
圖60為圖57中所說明之鏈輪之放大截面視圖。 Figure 60 is an enlarged cross-sectional view of the sprocket illustrated in Figure 57.
圖61為根據修改自行車後鏈輪總成之鏈輪支撐構件的部分側視圖。 Fig. 61 is a partial side view of the sprocket supporting member of the rear sprocket assembly of the bicycle according to the modification.
圖62為根據修改之自行車傳動系統之橫截面圖。 Figure 62 is a cross-sectional view of the bicycle transmission system according to the modification.
本申請案為2017年9月22日申請之美國專利申請案第15/712,388號之部分接續申請案。此申請案之內容以全文引用之方式併入本文中。 This application is a partial continuation of the US Patent Application No. 15/712,388 filed on September 22, 2017. The content of this application is incorporated herein by reference in its entirety.
現將參考附圖描述實施例,其中相似參考數字指定在各種圖式中的對應或相同元件。 The embodiments will now be described with reference to the drawings, in which like reference numerals designate corresponding or identical elements in the various drawings.
首先參考圖1,根據一實施例之自行車傳動系統10包含自行車後輪轂總成12及自行車後鏈輪總成14。自行車後輪轂總成12緊固至自行車框架BF。自行車後鏈輪總成14安裝於自行車後輪轂總成12上。自行車制動轉子16安裝於自行車後輪轂總成12上。
First, referring to FIG. 1, a
自行車傳動系統10進一步包含曲柄總成18及自行車鏈條20。曲柄總成18包括曲柄軸22、右曲柄臂24、左曲柄臂26及前鏈輪27。右曲柄臂24及左曲柄臂26緊固至曲柄軸22。前鏈輪27緊固至曲柄軸22及右曲柄臂24中之至少一者。自行車鏈條20與前鏈輪27及自行車後鏈輪總成14嚙合以
將踩踏力自前鏈輪27傳遞至自行車後鏈輪總成14。曲柄總成18包括前鏈輪27作為所說明實施例中之單一鏈輪。然而,曲柄總成18可包括複數個前鏈輪。自行車後鏈輪總成14為後鏈輪總成。然而,自行車後鏈輪總成14之結構可應用於前鏈輪。
The
在本申請案中,以下方向性術語「前」、「後」、「向前」、「向後」、「左」、「右」、「橫向」、「向上」及「向下」以及任何其他類似方向性術語係指基於坐在自行車之車座(未展示)上且面向把手(未展示)的使用者(例如,騎乘者)而判定之彼等方向。因此,此等術語在用以描述自行車傳動系統10、自行車後輪轂總成12或自行車後鏈輪總成14時,應關於配備有如在水平表面上在直立騎乘位置中所使用之自行車傳動系統10、自行車後輪轂總成12或自行車後鏈輪總成14的自行車而加以解譯。
In this application, the following directional terms "front", "back", "forward", "backward", "left", "right", "landscape", "up" and "down" and any other Similar directional terms refer to directions determined based on users (e.g., riders) sitting on the seat (not shown) of a bicycle and facing the handlebars (not shown). Therefore, when these terms are used to describe the
如圖2中所見,自行車後輪轂總成12及自行車後鏈輪總成14具有旋轉中心軸線A1。自行車後鏈輪總成14相對於自行車框架BF(圖1)圍繞旋轉中心軸線A1由自行車後輪轂總成12可旋轉地支撐。自行車後鏈輪總成14經構形以與自行車鏈條20嚙合,從而在踩踏期間在自行車鏈條20與自行車後鏈輪總成14之間傳遞傳動旋轉力F1。在踩踏期間,自行車後鏈輪總成14在傳動旋轉方向D11上圍繞旋轉中心軸線A1旋轉。傳動旋轉方向D11係沿自行車後輪轂總成12或自行車後鏈輪總成14之圓周方向D1界定。反向旋轉方向D12為傳動旋轉方向D11之相反方向,且係沿圓周方向D1界定。
As seen in Figure 2, the bicycle rear
如圖2中所見,自行車後輪轂總成12包含鏈輪支撐主體28。自行車後鏈輪總成14經構形以安裝至自行車後輪轂總成12之鏈輪支撐主體28。自行車後鏈輪總成14安裝於鏈輪支撐主體28上以在鏈輪支撐主體28與自行
車後鏈輪總成14之間傳遞傳動旋轉力F1。自行車後輪轂總成12包含輪轂軸30。鏈輪支撐主體28圍繞旋轉中心軸線A1可旋轉地安裝於上輪轂軸30。自行車後鏈輪總成14進一步包含鎖定構件32。鎖定構件32緊固至鏈輪支撐主體28以相對於旋轉中心軸線A1在軸向方向D2上相對於鏈輪支撐主體28固持自行車後鏈輪總成14。
As seen in FIG. 2, the bicycle rear
如圖3中所見,自行車後輪轂總成12藉由車輪緊固結構WS緊固至自行車框架BF。輪轂軸30包括軸通孔30A。車輪緊固結構WS之緊固桿WS1延伸穿過輪轂軸30之軸通孔30A。輪轂軸30包括第一軸端30B及第二軸端30C。輪轂軸30沿旋轉中心軸線A1在第一軸端30B與第二軸端30C之間延伸。第一軸端30B設置於自行車框架BF之第一框架BF1之第一凹槽BF11中。第二軸端30C設置於自行車框架BF之第二框架BF2之第二凹槽BF21中。輪轂軸30藉由車輪緊固結構WS固持於第一框架BF1與第二框架BF2之間。車輪緊固結構WS包括在所申請自行車中已知的結構。因此,出於簡潔起見,此處將不作詳細描述。
As seen in Fig. 3, the bicycle rear
在此實施例中,軸通孔30A具有等於或大於13mm之最小內徑BD1。軸通孔30A之最小內徑BD1較佳地等於或大於14mm。軸通孔30A之最小內徑BD1較佳地等於或小於21mm。在此實施例中,軸通孔30A之最小內徑BD1為15mm。然而,最小內徑BD1不限於此實施例及以上範圍。
In this embodiment, the shaft through
輪轂軸30具有等於或大於17mm之最大外徑BD2。輪轂軸30之最大外徑BD2較佳地等於或大於20mm。輪轂軸30之最大外徑BD2較佳地等於或小於23mm。在此實施例中,輪轂軸30之最大外徑BD2為21mm。然而,輪轂軸30之最大外徑BD2不限於此實施例及以上範圍。輪轂軸30具有等於或大於15mm之最小外徑BD3。最小外徑BD3較佳地等於或大於17
mm。最小外徑BD3較佳地等於或小於19mm。在此實施例中,輪轂軸30之最小外徑BD3為17.6mm。然而,最小外徑BD3不限於此實施例及以上範圍。
The
輪轂軸30包括軸管30X、第一軸部分30Y及第二軸部分30Z。軸管30X具有管狀形狀,且沿著旋轉中心軸線A1延伸。第一軸部分30Y緊固至軸管30X之第一端。第二軸部分30Z緊固至軸管30X之第二端。第一軸部分30Y及第二軸部分30Z中之至少一者可與軸管30X一體地設置。
The
如圖3及圖4中所見,自行車後輪轂總成12進一步包含制動轉子支撐主體34。制動轉子支撐主體34圍繞旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。制動轉子支撐主體34耦接至自行車制動轉子16(圖1)以將制動旋轉力自自行車制動轉子16傳遞至制動轉子支撐主體34。
As seen in FIGS. 3 and 4, the bicycle rear
如圖4中所見,自行車後輪轂總成12包含輪轂主體36。輪轂主體36圍繞自行車後輪轂總成12之旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。在此實施例中,鏈輪支撐主體28為與輪轂主體36分離之構件。制動轉子支撐主體34與輪轂主體36一體地設置為單件式整體構件。然而,鏈輪支撐主體28可與輪轂主體36一體地設置。制動轉子支撐主體34可為與輪轂主體36分離之構件。舉例而言,輪轂主體36由包括鋁之金屬材料製成。
As seen in FIG. 4, the bicycle
如圖5中所見,自行車後鏈輪總成14包含複數個自行車鏈輪。複數個自行車鏈輪包含第一鏈輪及第二鏈輪。在此實施例中,複數個自行車鏈輪包含作為第一鏈輪提供之複數個第一鏈輪SP1及SP2。該複數個自行車鏈輪亦包含作為第二鏈輪提供之複數個第二鏈輪SP3及SP4。該複數個自行車鏈輪包含額外鏈輪。在此實施例中,該複數個自行車鏈輪包含複數個額外鏈輪SP5至SP12。然而,第一鏈輪之總數目不限於此實施例。第二鏈輪
之總數目不限於此實施例。額外鏈輪之總數目不限於此實施例。另外,第一鏈輪SP1與SP2可整體形成為單件式整體構件,而第一鏈輪SP1在此實施例中為與第一鏈輪SP2分離之鏈輪。同理,第二鏈輪SP3與SP4可整體形成為單件式整體構件,而第二鏈輪SP3在此實施例中為與第二鏈輪SP4分離之鏈輪。
As seen in Figure 5, the bicycle
舉例而言,該複數個自行車鏈輪之總數目等於或大於10。該複數個自行車鏈輪之總數目可等於或大於11。該複數個自行車鏈輪之總數目可等於或大於12。在此實施例中,該複數個自行車鏈輪之總數目為12。然而,該複數個自行車鏈輪總數目不限於此實施例。舉例而言,該複數個自行車鏈輪之總數可為13、14、或等於或大於15。 For example, the total number of the plurality of bicycle sprockets is equal to or greater than 10. The total number of the plurality of bicycle sprockets may be equal to or greater than 11. The total number of the plurality of bicycle sprockets can be equal to or greater than 12. In this embodiment, the total number of the plurality of bicycle sprockets is 12. However, the total number of the plurality of bicycle sprockets is not limited to this embodiment. For example, the total number of the plurality of bicycle sprockets may be 13, 14, or 15 or more.
在此實施例中,第一鏈輪SP1為自行車後鏈輪總成14中之最小鏈輪。額外鏈輪SP12為自行車後鏈輪總成14中之最大鏈輪。第一鏈輪SP2對應於自行車後鏈輪總成14中之高速齒輪。額外鏈輪SP12對應於自行車後鏈輪總成14中之低速齒輪。
In this embodiment, the first sprocket SP1 is the smallest sprocket in the bicycle
如圖5中所見,第一鏈輪SP1具有節圓直徑PCD1。第一鏈輪SP2具有節圓直徑PCD2。第二鏈輪SP3具有節圓直徑PCD3。第二鏈輪SP4具有節圓直徑PCD4。額外鏈輪SP5具有節圓直徑PCD5。額外鏈輪SP6具有節圓直徑PCD6。額外鏈輪SP7具有節圓直徑PCD7。額外鏈輪SP8具有節圓直徑PCD8。額外鏈輪SP9具有節圓直徑PCD9。額外鏈輪SP10具有節圓直徑PCD10。額外鏈輪SP11具有節圓直徑PCD11。額外鏈輪SP12具有節圓直徑PCD12。 As seen in Figure 5, the first sprocket SP1 has a pitch circle diameter PCD1. The first sprocket SP2 has a pitch circle diameter PCD2. The second sprocket SP3 has a pitch circle diameter PCD3. The second sprocket SP4 has a pitch circle diameter PCD4. The extra sprocket SP5 has a pitch circle diameter of PCD5. The extra sprocket SP6 has a pitch circle diameter of PCD6. The extra sprocket SP7 has a pitch circle diameter of PCD7. The extra sprocket SP8 has a pitch circle diameter of PCD8. The extra sprocket SP9 has a pitch circle diameter of PCD9. The extra sprocket SP10 has a pitch diameter of PCD10. The extra sprocket SP11 has a pitch circle diameter PCD11. The extra sprocket SP12 has a pitch circle diameter of PCD12.
第一鏈輪SP1具有具有節圓直徑PCD1之節圓PC1。第一鏈輪SP2具有具有節圓直徑PCD2之節圓PC2。第二鏈輪SP3具有具有節圓直徑PCD3之 節圓PC3。第二鏈輪SP4具有具有節圓直徑PCD4之節圓PC4。額外鏈輪SP5具有具有節圓直徑PCD5之節圓PC5。額外鏈輪SP6具有具有節圓直徑PCD6之節圓PC6。額外鏈輪SP7具有具有節圓直徑PCD7之節圓PC7。額外鏈輪SP8具有具有節圓直徑PCD8之節圓PC8。額外鏈輪SP9具有具有節圓直徑PCD9之節圓PC9。額外鏈輪SP10具有具有節圓直徑PCD10之節圓PC10。額外鏈輪SP11具有具有節圓直徑PCD11之節圓PC11。額外鏈輪SP12具有具有節圓直徑PCD12之節圓PC12。 The first sprocket SP1 has a pitch circle PC1 having a pitch circle diameter PCD1. The first sprocket SP2 has a pitch circle PC2 having a pitch circle diameter PCD2. The second sprocket SP3 has a pitch diameter of PCD3 Pitch circle PC3. The second sprocket SP4 has a pitch circle PC4 having a pitch circle diameter PCD4. The additional sprocket SP5 has a pitch circle PC5 with a pitch circle diameter PCD5. The additional sprocket SP6 has a pitch circle PC6 with a pitch circle diameter PCD6. The additional sprocket SP7 has a pitch circle PC7 with a pitch circle diameter PCD7. The additional sprocket SP8 has a pitch circle PC8 with a pitch circle diameter PCD8. The extra sprocket SP9 has a pitch circle PC9 with a pitch circle diameter PCD9. The additional sprocket SP10 has a pitch circle PC10 with a pitch circle diameter PCD10. The additional sprocket SP11 has a pitch circle PC11 with a pitch circle diameter PCD11. The additional sprocket SP12 has a pitch circle PC12 with a pitch circle diameter PCD12.
第一鏈輪SP1之節圓PC1由與第一鏈輪SP1嚙合之自行車鏈20(圖2)之銷的中心軸線界定。定義節圓PC2至PC12以及節圓PC1。因此,出於簡潔起見,此處將不作詳細描述。 The pitch circle PC1 of the first sprocket SP1 is defined by the center axis of the pin of the bicycle chain 20 (FIG. 2) meshing with the first sprocket SP1. Define the pitch circle PC2 to PC12 and the pitch circle PC1. Therefore, for the sake of brevity, a detailed description will not be given here.
在此實施例中,節圓直徑PCD1小於節圓直徑PCD2。節圓直徑PCD2小於節圓直徑PCD3。節圓直徑PCD3小於節圓直徑PCD4。節圓直徑PCD4小於節圓直徑PCD5。節圓直徑PCD5小於節圓直徑PCD6。節圓直徑PCD6小於節圓直徑PCD7。節圓直徑PCD7小於節圓直徑PCD8。節圓直徑PCD8小於節圓直徑PCD9。節圓直徑PCD9小於節圓直徑PCD10。節圓直徑PCD10小於節圓直徑PCD11。節圓直徑PCD11小於節圓直徑PCD12。 In this embodiment, the pitch circle diameter PCD1 is smaller than the pitch circle diameter PCD2. The pitch circle diameter PCD2 is smaller than the pitch circle diameter PCD3. The pitch circle diameter PCD3 is smaller than the pitch circle diameter PCD4. The pitch circle diameter PCD4 is smaller than the pitch circle diameter PCD5. The pitch circle diameter PCD5 is smaller than the pitch circle diameter PCD6. The pitch circle diameter PCD6 is smaller than the pitch circle diameter PCD7. The pitch circle diameter PCD7 is smaller than the pitch circle diameter PCD8. The pitch circle diameter PCD8 is smaller than the pitch circle diameter PCD9. The pitch circle diameter PCD9 is smaller than the pitch circle diameter PCD10. The pitch circle diameter PCD10 is smaller than the pitch circle diameter PCD11. The pitch circle diameter PCD11 is smaller than the pitch circle diameter PCD12.
節圓直徑PCD1為自行車後鏈輪總成14中之最小節圓直徑。節圓直徑PCD12為自行車後鏈輪總成14中之最大節圓直徑。第一鏈輪SP1對應於自行車後鏈輪總成14中之高速齒輪。額外鏈輪SP12對應於自行車後鏈輪總成14中之低速齒輪。然而,第一鏈輪SP1可對應於自行車後鏈輪總成14中之另一齒輪。額外鏈輪SP12可對應於自行車後鏈輪總成14中之另一齒輪。
The pitch circle diameter PCD1 is the smallest pitch circle diameter in the
如圖6中所見,第一鏈輪SP2相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於第一鏈輪SP1,而在第一鏈輪SP1與SP2之間無另一鏈輪。第二鏈輪SP3相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於第一鏈輪SP2,而在第一鏈輪SP2與第二鏈輪SP3之間無另一鏈輪。第二鏈輪SP4相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於第二鏈輪SP3,而在第二鏈輪SP3與第二鏈輪SP4之間無另一鏈輪。第一鏈輪SP1及SP2、第二鏈輪SP3、第二鏈輪SP4及額外鏈輪SP5至SP12以此次序在軸向方向D2上配置。
As seen in Figure 6, the first sprocket SP2 is adjacent to the first sprocket SP1 in the axial direction D2 relative to the rotation center axis A1 of the bicycle
如圖7中所見,第一鏈輪SP1包括鏈輪主體SP1A及複數個鏈輪齒SP1B。複數個鏈輪齒SP1B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP1A徑向向外延伸。第一鏈輪SP1之總齒數(至少一個鏈輪齒SP1B之總數目)等於或小於10。在此實施例中,第一鏈輪SP1之至少一個鏈輪齒SP1B的總數目為10。然而,第一鏈輪SP1之複數個鏈輪齒SP1B的總數目不限於此實施例及以上範圍。
As seen in Figure 7, the first sprocket SP1 includes a sprocket body SP1A and a plurality of sprocket teeth SP1B. The plurality of sprocket teeth SP1B extend radially outward from the sprocket main body SP1A relative to the rotation center axis A1 of the bicycle
如圖8中所見,第一鏈輪SP2包括鏈輪主體SP2A及複數個鏈輪齒SP2B。複數個鏈輪齒SP2B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP2A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP2B之總數目為12。然而,第一鏈輪SP2之複數個鏈輪齒SP2B的總數目不限於此實施例。
As seen in Fig. 8, the first sprocket SP2 includes a sprocket main body SP2A and a plurality of sprocket teeth SP2B. The plurality of sprocket teeth SP2B extend radially outward from the sprocket main body SP2A relative to the rotation center axis A1 of the bicycle
第一鏈輪SP2包括至少一個第一移位促進區域SP2F1以促進自行車鏈20自第一鏈輪SP2移位至第一鏈輪SP1之第一移位操作。第一鏈輪SP2包括至少一個第二移位促進區域SP2F2以促進自行車鏈20自第一鏈輪SP1移位至第一鏈輪SP2之第二移位操作。在此實施例中,第一鏈輪SP2包括用
以促進第一移位操作之複數個第一移位促進區域SP2F1。第一鏈輪SP2包括用以促進第二移位操作之複數個第二移位促進區域SP2F2。然而,第一移位促進區域SP2F1之總數目不限於此實施例。第二移位促進區域SP2F2之總數目不限於此實施例。如本文所使用之術語「移位促進區域」意欲為有意設計成便於自行車鏈自鏈輪至該區域中之另一軸向鄰近鏈輪之移位操作的區域。
The first sprocket SP2 includes at least one first displacement promoting area SP2F1 to promote the first displacement operation of the
在此實施例中,第一鏈輪SP2包括用以促進第一移位操作之複數個第一移位促進凹槽SP2R1。第一鏈輪SP2包括用以促進第二移位操作之複數個第二移位促進凹槽SP2R2。第一移位促進凹槽SP2R1設置於第一移位促進區域SP2F1中。然而,第一移位促進區域SP2F1可包括另一結構來替代或補充第一移位促進凹槽SP2R1。第二移位促進區域SP2F2可包括另一結構來替代或補充第二移位促進凹槽SP2R2。 In this embodiment, the first sprocket SP2 includes a plurality of first displacement promoting grooves SP2R1 for promoting the first displacement operation. The first sprocket SP2 includes a plurality of second displacement promoting grooves SP2R2 for promoting the second displacement operation. The first displacement promoting groove SP2R1 is provided in the first displacement promoting region SP2F1. However, the first displacement promoting region SP2F1 may include another structure to replace or supplement the first displacement promoting groove SP2R1. The second displacement promoting region SP2F2 may include another structure to replace or supplement the second displacement promoting groove SP2R2.
如圖9中所見,第二鏈輪SP3包括鏈輪主體SP3A及複數個鏈輪齒SP3B。複數個鏈輪齒SP3B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP3A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP3B之總數目為14。然而,第二鏈輪SP3之複數個鏈輪齒SP3B的總數目不限於此實施例。
As seen in Fig. 9, the second sprocket SP3 includes a sprocket main body SP3A and a plurality of sprocket teeth SP3B. The plurality of sprocket teeth SP3B extend radially outward from the sprocket main body SP3A relative to the rotation center axis A1 of the bicycle
第二鏈輪SP3包括至少一個第一移位促進區域SP3F1以促進自行車鏈20自第二鏈輪SP3移位至第一鏈輪SP2(圖6)之第一移位操作。第二鏈輪SP3包括至少一個第二移位促進區域SP3F2以促進自行車鏈20自第一鏈輪SP2(圖6)移位至第二鏈輪SP3之第二移位操作。在此實施例中,第二鏈輪SP3包括用以促進第一移位操作之複數個第一移位促進區域SP3F1。第二鏈輪SP3包括用以促進第二移位操作之複數個第二移位促進區域SP3F2。
然而,第一移位促進區域SP3F1之總數目不限於此實施例。第二移位促進區域SP3F2之總數目不限於此實施例。
The second sprocket SP3 includes at least one first displacement promotion area SP3F1 to promote the first displacement operation of the
在此實施例中,第二鏈輪SP3包括用以促進第一移位操作之複數個第一移位促進凹槽SP3R1。第二鏈輪SP3包括用以促進第二移位操作之複數個第二移位促進凹槽SP3R2。第一移位促進凹槽SP3R1設置於第一移位促進區域SP3F1中。然而,第一移位促進區域SP3F1可包括另一結構來替代或補充第一移位促進凹槽SP3R1。第二移位促進區域SP3F2可包括另一結構來替代或補充第二移位促進凹槽SP3R2。 In this embodiment, the second sprocket SP3 includes a plurality of first displacement promoting grooves SP3R1 for promoting the first displacement operation. The second sprocket SP3 includes a plurality of second displacement promoting grooves SP3R2 for promoting the second displacement operation. The first displacement promoting groove SP3R1 is disposed in the first displacement promoting region SP3F1. However, the first displacement promoting region SP3F1 may include another structure to replace or supplement the first displacement promoting groove SP3R1. The second displacement promoting region SP3F2 may include another structure to replace or supplement the second displacement promoting groove SP3R2.
如圖10中所見,第二鏈輪SP4包括鏈輪主體SP4A及複數個鏈輪齒SP4B。複數個鏈輪齒SP4B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP4A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP4B之總數目為16。然而,第二鏈輪SP4之複數個鏈輪齒SP4B的總數目不限於此實施例。
As seen in FIG. 10, the second sprocket SP4 includes a sprocket main body SP4A and a plurality of sprocket teeth SP4B. The plurality of sprocket teeth SP4B extend radially outward from the sprocket main body SP4A relative to the rotation center axis A1 of the bicycle
第二鏈輪SP4包括至少一個第一移位促進區域SP4F1以促進自行車鏈20自第二鏈輪SP4移位至第二鏈輪SP3之第一移位操作。第二鏈輪SP4包括至少一個第二移位促進區域SP4F2以促進自行車鏈20自第二鏈輪SP3移位至第二鏈輪SP4之第二移位操作。在此實施例中,第二鏈輪SP4包括用以促進第一移位操作之複數個第一移位促進區域SP4F1。第二鏈輪SP4包括用以促進第二移位操作之複數個第二移位促進區域SP4F2。然而,第一移位促進區域SP4F1之總數目不限於此實施例。第二移位促進區域SP4F2之總數目不限於此實施例。
The second sprocket SP4 includes at least one first displacement promotion area SP4F1 to promote the first displacement operation of the
在此實施例中,第二鏈輪SP4包括用以促進第一移位操作之複數個第一移位促進凹槽SP4R1。第二鏈輪SP4包括用以促進第二移位操作之複數 個第二移位促進凹槽SP4R2。第一移位促進凹槽SP4R1設置於第一移位促進區域SP4F1中。然而,第一移位促進區域SP4F1可包括另一結構來替代或補充第一移位促進凹槽SP4R1。第二移位促進區域SP4F2可包括另一結構來替代或補充第二移位促進凹槽SP4R2。 In this embodiment, the second sprocket SP4 includes a plurality of first displacement promoting grooves SP4R1 for promoting the first displacement operation. The second sprocket SP4 includes plural numbers to facilitate the second shifting operation A second displacement promotion groove SP4R2. The first displacement promoting groove SP4R1 is disposed in the first displacement promoting region SP4F1. However, the first displacement promoting region SP4F1 may include another structure to replace or supplement the first displacement promoting groove SP4R1. The second displacement promoting region SP4F2 may include another structure to replace or supplement the second displacement promoting groove SP4R2.
如圖11中所見,額外鏈輪SP5包括鏈輪主體SP5A及複數個鏈輪齒SP5B。複數個鏈輪齒SP5B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP5A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP5B之總數目為18。然而,額外鏈輪SP5之複數個鏈輪齒SP5B的總數目不限於此實施例。
As seen in Figure 11, the additional sprocket SP5 includes a sprocket body SP5A and a plurality of sprocket teeth SP5B. The plurality of sprocket teeth SP5B extend radially outward from the sprocket main body SP5A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP5包括至少一個第一移位促進區域SP5F1以促進自行車鏈20自額外鏈輪SP5移位至相鄰更小鏈輪SP4之第一移位操作。額外鏈輪SP5包括至少一個第二移位促進區域SP5F2以促進自行車鏈20自相鄰更小鏈輪SP4移位至額外鏈輪SP5之第二移位操作。相鄰更小鏈輪SP4相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP5,而在額外鏈輪SP5與相鄰更小鏈輪SP4之間無另一鏈輪。在此實施例中,額外鏈輪SP5包括用以促進第一移位操作之複數個第一移位促進區域SP5F1。額外鏈輪SP5包括用以促進第二移位操作之複數個第二移位促進區域SP5F2。然而,第一移位促進區域SP5F1之總數目不限於此實施例。第二移位促進區域SP5F2之總數目不限於此實施例。
The additional sprocket SP5 includes at least one first displacement promotion area SP5F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP5包括用以促進第一移位操作之複數個第一移位促進凹槽SP5R1。額外鏈輪SP5包括用以促進第二移位操作之複數個第二移位促進凹槽SP5R2。第一移位促進凹槽SP5R1設置於第一移位促進區域SP5F1中。第二移位促進凹槽SP5R2設置於第二移位促進區域 SP5F2中。然而,第一移位促進區域SP5F1可包括另一結構來替代或補充第一移位促進凹槽SP5R1。第二移位促進區域SP5F2可包括另一結構來替代或補充第二移位促進凹槽SP5R2。 In this embodiment, the additional sprocket SP5 includes a plurality of first displacement promoting grooves SP5R1 for promoting the first displacement operation. The additional sprocket SP5 includes a plurality of second displacement promoting grooves SP5R2 for promoting the second displacement operation. The first displacement promoting groove SP5R1 is disposed in the first displacement promoting region SP5F1. The second displacement promotion groove SP5R2 is arranged in the second displacement promotion area SP5F2. However, the first displacement promoting region SP5F1 may include another structure to replace or supplement the first displacement promoting groove SP5R1. The second displacement promoting region SP5F2 may include another structure to replace or supplement the second displacement promoting groove SP5R2.
如圖12中所見,額外鏈輪SP6包括鏈輪主體SP6A及複數個鏈輪齒SP6B。複數個鏈輪齒SP6B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP6A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP6B之總數目為21。然而,額外鏈輪SP6之複數個鏈輪齒SP6B的總數目不限於此實施例。
As seen in FIG. 12, the additional sprocket SP6 includes a sprocket body SP6A and a plurality of sprocket teeth SP6B. The plurality of sprocket teeth SP6B extend radially outward from the sprocket main body SP6A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP6包括至少一個第一移位促進區域SP6F1以促進自行車鏈20自額外鏈輪SP6移位至相鄰更小鏈輪SP5之第一移位操作。額外鏈輪SP6包括至少一個第二移位促進區域SP6F2以促進自行車鏈20自相鄰更小鏈輪SP5移位至額外鏈輪SP6之第二移位操作。相鄰更小鏈輪SP5相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP6,而在額外鏈輪SP6與相鄰更小鏈輪SP5之間無另一鏈輪。在此實施例中,額外鏈輪SP6包括用以促進第一移位操作之複數個第一移位促進區域SP6F1。額外鏈輪SP6包括用以促進第二移位操作之複數個第二移位促進區域SP6F2。然而,第一移位促進區域SP6F1之總數目不限於此實施例。第二移位促進區域SP6F2之總數目不限於此實施例。
The additional sprocket SP6 includes at least one first displacement promotion area SP6F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP6包括用以促進第一移位操作之複數個第一移位促進凹槽SP6R1。額外鏈輪SP6包括用以促進第二移位操作之複數個第二移位促進凹槽SP6R2。第一移位促進凹槽SP6R1置於第一移位促進區域SP6F1中。第二移位促進凹槽SP6R2設置於第二移位促進區域SP6F2中。然而,第一移位促進區域SP6F1可包括另一結構來替代或補充第一移 位促進凹槽SP6R1。第二移位促進區域SP6F2可包括另一結構來替代或補充第二移位促進凹槽SP6R2。 In this embodiment, the additional sprocket SP6 includes a plurality of first displacement promoting grooves SP6R1 for promoting the first displacement operation. The additional sprocket SP6 includes a plurality of second displacement promoting grooves SP6R2 for promoting the second displacement operation. The first displacement promoting groove SP6R1 is placed in the first displacement promoting area SP6F1. The second displacement promoting groove SP6R2 is provided in the second displacement promoting region SP6F2. However, the first displacement promotion area SP6F1 may include another structure to replace or supplement the first displacement. Bit promotion groove SP6R1. The second displacement promoting region SP6F2 may include another structure to replace or supplement the second displacement promoting groove SP6R2.
如圖13中所見,額外鏈輪SP7包括鏈輪主體SP7A及複數個鏈輪齒SP7B。複數個鏈輪齒SP7B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP7A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP7B之總數目為24。然而,額外鏈輪SP7之複數個鏈輪齒SP7B的總數目不限於此實施例。
As seen in Figure 13, the additional sprocket SP7 includes a sprocket body SP7A and a plurality of sprocket teeth SP7B. The plurality of sprocket teeth SP7B extend radially outward from the sprocket main body SP7A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP7包括至少一個第一移位促進區域SP7F1以促進自行車鏈20自額外鏈輪SP7移位至相鄰更小鏈輪SP6之第一移位操作。額外鏈輪SP7包括至少一個第二移位促進區域SP7F2以促進自行車鏈20自相鄰更小鏈輪SP6移位至額外鏈輪SP7之第二移位操作。相鄰更小鏈輪SP6相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP7,而在額外鏈輪SP7與相鄰更小鏈輪SP6之間無另一鏈輪。在此實施例中,額外鏈輪SP7包括用以促進第一移位操作之複數個第一移位促進區域SP7F1。額外鏈輪SP7包括用以促進第二移位操作之複數個第二移位促進區域SP7F2。然而,第一移位促進區域SP7F1之總數目不限於此實施例。第二移位促進區域SP7F2之總數目不限於此實施例。
The additional sprocket SP7 includes at least one first displacement promotion area SP7F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP7包括用以促進第一移位操作之複數個第一移位促進凹槽SP7R1。額外鏈輪SP7包括用以促進第二移位操作之複數個第二移位促進凹槽SP7R2。第一移位促進凹槽SP7R1置於第一移位促進區域SP7F1中。第二移位促進凹槽SP7R2設置於第二移位促進區域SP7F2中。然而,第一移位促進區域SP7F1可包括另一結構來替代或補充第一移位促進凹槽SP7R1。第二移位促進區域SP7F2可包括另一結構來替代或補 充第二移位促進凹槽SP7R2。 In this embodiment, the additional sprocket SP7 includes a plurality of first displacement promoting grooves SP7R1 for promoting the first displacement operation. The additional sprocket SP7 includes a plurality of second displacement promoting grooves SP7R2 for promoting the second displacement operation. The first displacement promoting groove SP7R1 is placed in the first displacement promoting area SP7F1. The second displacement promoting groove SP7R2 is provided in the second displacement promoting region SP7F2. However, the first displacement promoting region SP7F1 may include another structure to replace or supplement the first displacement promoting groove SP7R1. The second displacement promotion area SP7F2 may include another structure to replace or supplement Fill the second displacement promotion groove SP7R2.
如圖14中所見,額外鏈輪SP8包括鏈輪主體SP8A及複數個鏈輪齒SP8B。複數個鏈輪齒SP8B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP8A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP8B之總數目為28。然而,額外鏈輪SP8之複數個鏈輪齒SP8B的總數目不限於此實施例。
As seen in Figure 14, the additional sprocket SP8 includes a sprocket body SP8A and a plurality of sprocket teeth SP8B. The plurality of sprocket teeth SP8B extend radially outward from the sprocket main body SP8A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP8包括至少一個第一移位促進區域SP8F1以促進自行車鏈20自額外鏈輪SP8移位至相鄰更小鏈輪SP7之第一移位操作。額外鏈輪SP8包括至少一個第二移位促進區域SP8F2以促進自行車鏈20自相鄰更小鏈輪SP7移位至額外鏈輪SP8之第二移位操作。相鄰更小鏈輪SP7相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP8,而在額外鏈輪SP8與相鄰更小鏈輪SP7之間無另一鏈輪。在此實施例中,額外鏈輪SP8包括用以促進第一移位操作之複數個第一移位促進區域SP8F1。額外鏈輪SP8包括用以促進第二移位操作之複數個第二移位促進區域SP8F2。然而,第一移位促進區域SP8F1之總數目不限於此實施例。第二移位促進區域SP8F2之總數目不限於此實施例。
The additional sprocket SP8 includes at least one first displacement promotion area SP8F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP8包括用以促進第一移位操作之複數個第一移位促進凹槽SP8R1。額外鏈輪SP8包括用以促進第二移位操作之複數個第二移位促進凹槽SP8R2。第一移位促進凹槽SP8R1置於第一移位促進區域SP8F1中。第二移位促進凹槽SP8R2設置於第二移位促進區域SP8F2中。然而,第一移位促進區域SP8F1可包括另一結構來替代或補充第一移位促進凹槽SP8R1。第二移位促進區域SP8F2可包括另一結構來替代或補充第二移位促進凹槽SP8R2。 In this embodiment, the additional sprocket SP8 includes a plurality of first displacement promoting grooves SP8R1 for promoting the first displacement operation. The additional sprocket SP8 includes a plurality of second displacement promoting grooves SP8R2 for promoting the second displacement operation. The first displacement promoting groove SP8R1 is placed in the first displacement promoting area SP8F1. The second displacement promoting groove SP8R2 is provided in the second displacement promoting region SP8F2. However, the first displacement promoting region SP8F1 may include another structure to replace or supplement the first displacement promoting groove SP8R1. The second displacement promoting region SP8F2 may include another structure to replace or supplement the second displacement promoting groove SP8R2.
如圖15中所見,額外鏈輪SP9包括鏈輪主體SP9A及複數個鏈輪齒SP9B。複數個鏈輪齒SP9B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP9A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP9B之總數目為33。然而,額外鏈輪SP9之複數個鏈輪齒SP9B的總數目不限於此實施例。
As seen in Figure 15, the additional sprocket SP9 includes a sprocket body SP9A and a plurality of sprocket teeth SP9B. The plural sprocket teeth SP9B extend radially outward from the sprocket main body SP9A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP9包括至少一個第一移位促進區域SP9F1以促進自行車鏈20自額外鏈輪SP9移位至相鄰更小鏈輪SP8之第一移位操作。額外鏈輪SP9包括至少一個第二移位促進區域SP9F2以促進自行車鏈20自相鄰更小鏈輪SP8移位至額外鏈輪SP9之第二移位操作。相鄰更小鏈輪SP8相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP9,而在額外鏈輪SP9與相鄰更小鏈輪SP8之間無另一鏈輪。在此實施例中,額外鏈輪SP9包括用以促進第一移位操作之複數個第一移位促進區域SP9F1。額外鏈輪SP9包括用以促進第二移位操作之複數個第二移位促進區域SP9F2。然而,第一移位促進區域SP9F1之總數目不限於此實施例。第二移位促進區域SP9F2之總數目不限於此實施例。
The additional sprocket SP9 includes at least one first displacement promotion area SP9F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP9包括用以促進第一移位操作之複數個第一移位促進凹槽SP9R1。額外鏈輪SP9包括用以促進第二移位操作之複數個第二移位促進凹槽SP9R2。第一移位促進凹槽SP9R1置於第一移位促進區域SP9F1中。第二移位促進凹槽SP9R2設置於第二移位促進區域SP9F2中。然而,第一移位促進區域SP9F1可包括另一結構來替代或補充第一移位促進凹槽SP9R1。第二移位促進區域SP9F2可包括另一結構來替代或補充第二移位促進凹槽SP9R2。 In this embodiment, the additional sprocket SP9 includes a plurality of first displacement promoting grooves SP9R1 for promoting the first displacement operation. The additional sprocket SP9 includes a plurality of second displacement promoting grooves SP9R2 for promoting the second displacement operation. The first displacement promoting groove SP9R1 is placed in the first displacement promoting area SP9F1. The second displacement promoting groove SP9R2 is provided in the second displacement promoting region SP9F2. However, the first displacement promoting region SP9F1 may include another structure to replace or supplement the first displacement promoting groove SP9R1. The second displacement promoting region SP9F2 may include another structure to replace or supplement the second displacement promoting groove SP9R2.
如圖16中所見,額外鏈輪SP10包括鏈輪主體SP10A及複數個鏈輪齒
SP10B。複數個鏈輪齒SP10B相對於自行車後鏈輪總成14之旋轉中心軸線A1自鏈輪主體SP10A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP10B之總數目為39。然而,額外鏈輪SP10之複數個鏈輪齒SP10B的總數目不限於此實施例。
As seen in Figure 16, the additional sprocket SP10 includes a sprocket body SP10A and a plurality of sprocket teeth
SP10B. The plurality of sprocket teeth SP10B extend radially outward from the sprocket main body SP10A relative to the rotation center axis A1 of the bicycle
額外鏈輪SP10包括至少一個第一移位促進區域SP10F1以促進自行車鏈20自額外鏈輪SP10移位至相鄰更小鏈輪SP9之第一移位操作。額外鏈輪SP10包括至少一個第二移位促進區域SP10F2以促進自行車鏈20自相鄰更小鏈輪SP9移位至額外鏈輪SP10之第二移位操作。相鄰更小鏈輪SP9相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP10,而在額外鏈輪SP10與相鄰更小鏈輪SP9之間無另一鏈輪。在此實施例中,額外鏈輪SP10包括用以促進第一移位操作之複數個第一移位促進區域SP10F1。額外鏈輪SP10包括用以促進第二移位操作之複數個第二移位促進區域SP10F2。然而,第一移位促進區域SP10F1之總數目不限於此實施例。第二移位促進區域SP10F2之總數目不限於此實施例。
The additional sprocket SP10 includes at least one first displacement promotion area SP10F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP10包括用以促進第一移位操作之複數個第一移位促進凹槽SP10R1。額外鏈輪SP10包括用以促進第二移位操作之複數個第二移位促進凹槽SP10R2。第一移位促進凹槽SP10R1置於第一移位促進區域SP10F1中。第二移位促進凹槽SP10R2設置於第二移位促進區域SP10F2中。然而,第一移位促進區域SP10F1可包括另一結構來替代或補充第一移位促進凹槽SP10R1。第二移位促進區域SP10F2可包括另一結構來替代或補充第二移位促進凹槽SP10R2。 In this embodiment, the additional sprocket SP10 includes a plurality of first displacement promoting grooves SP10R1 for promoting the first displacement operation. The additional sprocket SP10 includes a plurality of second displacement promoting grooves SP10R2 for promoting the second displacement operation. The first displacement promoting groove SP10R1 is placed in the first displacement promoting area SP10F1. The second displacement promoting groove SP10R2 is provided in the second displacement promoting region SP10F2. However, the first displacement promoting region SP10F1 may include another structure to replace or supplement the first displacement promoting groove SP10R1. The second displacement promoting region SP10F2 may include another structure to replace or supplement the second displacement promoting groove SP10R2.
如圖17中所見,額外鏈輪SP11包括鏈輪主體SP11A及複數個鏈輪齒SP11B。複數個鏈輪齒SP11B相對於自行車後鏈輪總成14之旋轉中心軸線
A1自鏈輪主體SP11A徑向向外延伸。在此實施例中,至少一個鏈輪齒SP11B之總數目為45。然而,額外鏈輪SP11之複數個鏈輪齒SP11B的總數目不限於此實施例。
As seen in FIG. 17, the additional sprocket SP11 includes a sprocket body SP11A and a plurality of sprocket teeth SP11B. The plurality of sprockets SP11B are relative to the rotation center axis of the bicycle
額外鏈輪SP11包括至少一個第一移位促進區域SP11F1以促進自行車鏈20自額外鏈輪SP11移位至相鄰更小鏈輪SP10之第一移位操作。額外鏈輪SP11包括至少一個第二移位促進區域SP11F2以促進自行車鏈20自相鄰更小鏈輪SP10移位至額外鏈輪SP11之第二移位操作。相鄰更小鏈輪SP10相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP11,而在額外鏈輪SP11與相鄰更小鏈輪SP10之間無另一鏈輪。在此實施例中,額外鏈輪SP11包括用以促進第一移位操作之複數個第一移位促進區域SP11F1。額外鏈輪SP11包括用以促進第二移位操作之複數個第二移位促進凹槽區域SP11F2。然而,第一移位促進區域SP11F1之總數目不限於此實施例。第二移位促進區域SP11F2之總數目不限於此實施例。
The additional sprocket SP11 includes at least one first displacement promotion area SP11F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP11包括用以促進第一移位操作之複數個第一移位促進凹槽SP11R1。額外鏈輪SP11包括用以促進第二移位操作之複數個第二移位促進凹槽SP11R2。第一移位促進凹槽SP11R1置於第一移位促進區域SP11F1中。第二移位促進凹槽SP11R2設置於第二移位促進區域SP11F2中。然而,第一移位促進區域SP11F1可包括另一結構來替代或補充第一移位促進凹槽SP11R1。第二移位促進區域SP11F2可包括另一結構來替代或補充第二移位促進凹槽SP11R2。 In this embodiment, the additional sprocket SP11 includes a plurality of first displacement promoting grooves SP11R1 for promoting the first displacement operation. The additional sprocket SP11 includes a plurality of second displacement promoting grooves SP11R2 for promoting the second displacement operation. The first displacement promoting groove SP11R1 is placed in the first displacement promoting area SP11F1. The second displacement promoting groove SP11R2 is disposed in the second displacement promoting region SP11F2. However, the first displacement promoting region SP11F1 may include another structure to replace or supplement the first displacement promoting groove SP11R1. The second displacement promoting region SP11F2 may include another structure to replace or supplement the second displacement promoting groove SP11R2.
如圖18中所見,額外鏈輪SP12包括鏈輪主體SP12A及複數個鏈輪齒SP12B。複數個鏈輪齒SP12B相對於自行車後鏈輪總成14之旋轉中心軸線
A1自鏈輪主體SP12A徑向向外延伸。額外鏈輪SP12之總齒數等於或大於46。額外鏈輪SP12之總齒數亦可等於或大於50。額外鏈輪SP12之總齒數在此實施例中為51。然而,額外鏈輪SP12之至少一個鏈輪齒SP12B之總數目不限於此實施例及以上範圍。
As seen in Figure 18, the additional sprocket SP12 includes a sprocket body SP12A and a plurality of sprocket teeth SP12B. The plurality of sprockets SP12B are relative to the rotation center axis of the bicycle
額外鏈輪SP12包括至少一個第一移位促進區域SP12F1以促進自行車鏈20自額外鏈輪SP12移位至相鄰更小鏈輪SP11之第一移位操作。額外鏈輪SP12包括至少一個第二移位促進區域SP12F2以促進自行車鏈20自相鄰更小鏈輪SP11移位至額外鏈輪SP12之第二移位操作。相鄰更小鏈輪SP11相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰近於額外鏈輪SP12,而在額外鏈輪SP12與相鄰更小鏈輪SP11之間無另一鏈輪。在此實施例中,額外鏈輪SP12包括用以促進第一移位操作之複數個第一移位促進區域SP12F1。額外鏈輪SP12包括用以促進第二移位操作之複數個第二移位促進區域SP12F2。然而,第一移位促進區域SP12F1之總數目不限於此實施例。第二移位促進區域SP12F2之總數目不限於此實施例。
The additional sprocket SP12 includes at least one first displacement promotion area SP12F1 to promote the first displacement operation of the
在此實施例中,額外鏈輪SP12包括用以促進第一移位操作之複數個第一移位促進凹槽SP12R1。額外鏈輪SP12包括用以促進第二移位操作之複數個第二移位促進凹槽SP12R2。第一移位促進凹槽SP12R1置於第一移位促進區域SP12F1中。第二移位促進凹槽SP12R2設置於第二移位促進區域SP12F2中。然而,第一移位促進區域SP12F1可包括另一結構來替代或補充第一移位促進凹槽SP12R1。第二移位促進區域SP12F2可包括另一結構來替代或補充第二移位促進凹槽SP12R2。 In this embodiment, the additional sprocket SP12 includes a plurality of first displacement promoting grooves SP12R1 for promoting the first displacement operation. The additional sprocket SP12 includes a plurality of second displacement promoting grooves SP12R2 for promoting the second displacement operation. The first displacement promoting groove SP12R1 is placed in the first displacement promoting area SP12F1. The second displacement promoting groove SP12R2 is disposed in the second displacement promoting region SP12F2. However, the first displacement promoting region SP12F1 may include another structure to replace or supplement the first displacement promoting groove SP12R1. The second displacement promoting region SP12F2 may include another structure to replace or supplement the second displacement promoting groove SP12R2.
如圖19中所見,鏈輪SP1至SP12為彼此分開的構件。然而,鏈輪SP1至SP12中之至少一者可與鏈輪SP1至SP12中之另一至少部分地整體設 置。所有鏈輪SP1至SP12可與彼此一體成型為單件式整體單元。在此狀況下,鏈輪SP3至SP12中之至少一者可包括至少十個內部花鍵齒。 As seen in FIG. 19, the sprockets SP1 to SP12 are members separated from each other. However, at least one of the sprockets SP1 to SP12 may be at least partially integrated with the other of the sprockets SP1 to SP12. Set. All sprockets SP1 to SP12 can be integrally formed with each other as a one-piece integral unit. In this situation, at least one of the sprockets SP3 to SP12 may include at least ten internal spline teeth.
自行車後鏈輪總成14進一步包含鏈輪支撐構件37、複數個間隔件38、第一環39A及第二環39B。第一環39A在軸向方向D2上設置於第二鏈輪SP3與第二鏈輪SP4之間。第二環39B在軸向方向D2上設置於第二鏈輪SP4與額外鏈輪SP5之間。額外鏈輪經構形以附接至鏈輪支撐構件37。在此實施例中額外鏈輪SP5至SP12經構形以附接至鏈輪支撐構件37。
The bicycle
如圖6中所見,舉例而言,額外鏈輪藉由黏著劑37A附接至鏈輪支撐構件37。在此實施例中,額外鏈輪SP5至SP12藉由黏著劑37A附接至鏈輪支撐構件37。因此,有可能藉由減少或消除金屬緊固件來減輕自行車後鏈輪總成14之重量。然而,額外鏈輪SP5至SP12中之至少一者可藉由除黏著劑37A以外之另一結構(包括金屬緊固件)附接至鏈輪支撐構件37。額外鏈輪SP5至SP12中之至少一者可在無鏈輪支撐構件37之情況下與鏈輪支撐主體28嚙合。鏈輪支撐構件37可自自行車後鏈輪總成14省略。另外,第二鏈輪SP3及SP4中之至少一者可附接至鏈輪支撐構件37。
As seen in FIG. 6, for example, an additional sprocket is attached to the
如圖4中所見,鎖定構件32包括管狀主體32A、外螺紋部分32B及徑向突出物32C。管狀主體32A包括第一軸向端32D及第二軸向端32E。相對於自行車後鏈輪總成14之旋轉中心軸線A1,第二軸向端32E在軸向方向D2上與第一軸向端32D相對。如圖6中所見,在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下,第一軸向端32D經定位成比第二軸向端32E更接近自行車後輪轂總成12之軸向中心平面CPL。軸向中心平面CPL垂直於旋轉中心軸線A1。如圖3中所見,軸向中心平面CPL經界定以在軸向方向D2上平分自行車後輪轂總成12之軸向長度。
As seen in FIG. 4, the locking
如圖6中所見,外螺紋部分32B提供至第一軸向端32D,以在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下與自行車後輪轂總成12之鏈輪支撐主體28的內螺紋部分28A嚙合。徑向突出物32C相對於旋轉中心軸線A1自第二軸向端32E徑向向外延伸,以在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下限制第一鏈輪SP2相對於自行車後輪轂總成12之鏈輪支撐主體28的軸向移動。
As seen in Figure 6, the external threaded
第一鏈輪SP1包括第一向內側SP1G及第一向外側SP1H。第一向外側SP1H在軸向方向D2上與第一向內側SP1G相對。徑向突出物32C經構形以在第一向外側SP1H中鄰接第一鏈輪SP1。第一鏈輪SP1及SP2該軸向方向上安置於徑向突出物32C與第二鏈輪SP3之間。第一鏈輪SP1及SP2、第二鏈輪SP3、第二鏈輪SP4及第一環39A在軸向方向D2上固持於徑向突出物32C與鏈輪支撐構件37之間。
The first sprocket SP1 includes a first inner side SP1G and a first outer side SP1H. The first outward SP1H faces the first inward SP1G in the axial direction D2. The
如圖4中所見,鎖定構件32具有工具嚙合部分32F。工具嚙合部分32F設置於管狀主體32A之內部周邊表面32A1上以與緊固工具(未展示)嚙合。在此實施例中,工具嚙合部分32F包括複數個嚙合凹槽32G,嚙合凹槽32G將在鎖定構件32藉由外螺紋部分32B及內螺紋部分28A以螺紋方式附接至鏈輪支撐主體28時與緊固工具嚙合。
As seen in FIG. 4, the locking
如圖20及圖21中所見,鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之至少一個外部花鍵齒40。鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之至少十個外部花鍵齒40。亦即,至少一個外部花鍵齒40包括複數個外部花鍵齒40。
As seen in Figures 20 and 21, the
鏈輪支撐主體28包括具有管狀形狀之基座支撐件41。基座支撐件41沿旋轉中心軸線A1延伸。外部花鍵齒40自基座支撐件41徑向向外延伸。
鏈輪支撐主體28包括較大直徑部分42、凸緣44及複數個螺旋外部花鍵齒46。較大直徑部分42及凸緣44自基座支撐件41徑向向外延伸。較大直徑部分42在軸向方向D2上設置於複數個外部花鍵齒40與凸緣44之間。較大直徑部分42及凸緣44在軸向方向D2上設置於複數個外部花鍵齒40與複數個螺旋外部花鍵齒46之間。如圖6中所見,自行車後鏈輪總成14在軸向方向D2上固持於較大直徑部分42與鎖定構件32之徑向突出物32C之間。較大直徑部分42可具有內部空腔,使得諸如單向聯軸結構之傳動結構可容納於內部空腔內。根據需要,可自自行車後輪轂總成12省略較大直徑部分42。
The
如圖22中所見,至少十個外部花鍵齒40中之至少一者具有軸向花鍵齒長度SL1。外部花鍵齒40中之每一者具有軸向花鍵齒長度SL1。軸向花鍵齒長度SL1等於或小於27mm。軸向花鍵齒長度SL1等於或大於22mm。在此實施例中,軸向花鍵齒長度SL1為24.9mm。然而,軸向花鍵齒長度SL1不限於此實施例及以上範圍。
As seen in Figure 22, at least one of the at least ten
如圖23中所見,至少十個外部花鍵齒40之總數目等於或大於20。至少十個外部花鍵齒40之總數目較佳地等於或大於25。至少十個外部花鍵齒40之總數目較佳地等於或大於28。外部花鍵齒40之總數目較佳地等於或小於72。在此實施例中,外部花鍵齒40之總數目為29。然而,外部花鍵齒40之總數目不限於此實施例及以上範圍。
As seen in FIG. 23, the total number of at least ten
至少十個外部花鍵齒40具有第一外部周節角PA11及第二外部周節角PA12。至少十個外部花鍵齒40中之至少兩個外部花鍵齒相對於旋轉中心軸線A1按第一外部周節角PA11沿圓周配置。換言之,複數個外部花鍵齒40中之至少兩者相對於自行車後輪轂總成12之旋轉中心軸線A1按第一外
部周節角PA11沿圓周配置。至少十個外部花鍵齒40中之至少兩個外部花鍵齒相對於自行車後輪轂總成12之旋轉中心軸線A1按第二外部周節角PA12沿圓周配置。換言之,複數個外部花鍵齒40中之至少兩者相對於自行車後輪轂總成12之旋轉中心軸線A1按第二外部周節角PA12沿圓周配置。在此實施例中,第二外部周節角PA12不同於第一外部周節角PA11。然而,第二外部周節角PA12可大體上等於第一外部周節角PA11。
At least ten
在此實施例中,外部花鍵齒40為在圓周方向D1上按第一外部周節角PA11配置。外部花鍵齒40中之兩個外部花鍵齒為在圓周方向D1上按第二外部周節角PA12配置。然而,外部花鍵齒40中之至少兩個外部花鍵齒可在圓周方向D1上以另一外部周節角配置。
In this embodiment, the
第一外部周節角PA11範圍介於5度至36度。第一外部周節角PA11較佳地範圍介於10度至20度。第一外部周節角PA11較佳地等於或小於15度。在此實施例中,第一外部周節角PA11為12度。然而,第一外部周節角PA11不限於此實施例及以上範圍。 The range of the first outer pitch angle PA11 is between 5 degrees and 36 degrees. The first outer circumferential pitch angle PA11 preferably ranges from 10 degrees to 20 degrees. The first outer peripheral pitch angle PA11 is preferably equal to or less than 15 degrees. In this embodiment, the first outer peripheral pitch angle PA11 is 12 degrees. However, the first outer circumferential pitch angle PA11 is not limited to this embodiment and the above range.
第二外部周節角PA12範圍介於5度至36度。在此實施例中,第二外部周節角PA12為24度。然而,第二外部周節角PA12不限於此實施例及以上範圍。 The second outer circumferential pitch angle PA12 ranges from 5 degrees to 36 degrees. In this embodiment, the second outer peripheral pitch angle PA12 is 24 degrees. However, the second outer circumferential pitch angle PA12 is not limited to this embodiment and the above range.
外部花鍵齒40中之至少一者可不同於外部花鍵齒40中之另一者之第二花鍵形狀的第一花鍵形狀。至少十個外部花鍵齒40中之至少一者可具有不同於至少十個外部花鍵齒40中之另一者之第二花鍵大小的第一花鍵大小。當沿旋轉中心軸線A1檢視時,外部花鍵齒40中之至少一者具有不同於外部花鍵齒40中之另一者之輪廓的輪廓。在此實施例中,外部花鍵齒40X具有不同於外部花鍵齒40中之另一者之第二花鍵形狀的第一花鍵形
狀。外部花鍵齒40X具有不同於外部花鍵齒40中之另一者之第二花鍵大小的第一花鍵大小。然而,如圖24中所見,至少十個外部花鍵齒40可彼此具有相同花鍵形狀。至少十個外部花鍵齒40可彼此具有相同花鍵大小。至少十個外部花鍵齒40可彼此具有相同輪廓。
At least one of the
如圖25中所見,至少十個外部花鍵齒40中之每一者具有外部花鍵傳動表面48及外部花鍵非傳動表面50。複數個外部花鍵齒40包括用以在踩踏期間接收來自自行車後鏈輪總成14(圖6)之傳動旋轉力F1的複數個外部花鍵傳動表面48。複數個外部花鍵齒40包括複數個外部花鍵非傳動表面50。外部花鍵傳動表面48可與自行車後鏈輪總成14接觸以在踩踏期間接收來自自行車後鏈輪總成14(圖6)之傳動旋轉力F1。外部花鍵傳動表面48面向反向旋轉方向D12。在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下,外部花鍵傳動表面48面向自行車後鏈輪總成14之內部花鍵傳動表面66。外部花鍵非傳動表面50在圓周方向D1上設置於外部花鍵傳動表面48之反向側上。外部花鍵非傳動表面50面向傳動旋轉方向D11,從而在踩踏期間不接收來自自行車後鏈輪總成14之傳動旋轉力F1。在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下,外部花鍵非傳動表面50面向自行車後鏈輪總成14之內部花鍵非傳動表面68。
As seen in FIG. 25, each of the at least ten
至少十個外部花鍵齒40分別具有圓周最大寬度MW1。外部花鍵齒40分別具有圓周最大寬度MW1。圓周最大寬度MW1定義為接收施加至外部花鍵齒40之推力F2的最大寬度。圓周最大寬度MW1定義為基於外部花鍵傳動表面48之直線距離。
At least ten
複數個外部花鍵傳動表面48各自包括徑向最外邊緣48A及徑向最內邊緣48B。外部花鍵傳動表面48自徑向最外邊緣48A延伸至徑向最內邊緣
48B。第一參考圓RC11界定於徑向最內邊緣48B上且以旋轉中心軸線A1為中心。第一參考圓RC11在參考點50R處與外部花鍵非傳動表面50相交。圓周最大寬度MW1在圓周方向D1上自徑向最內邊緣48B直線延伸至參考點50R。
Each of the plurality of outer spline transmission surfaces 48 includes a radially
複數個外部花鍵非傳動表面50各自包括徑向最外邊緣50A及徑向最內邊緣50B。外部花鍵非傳動表面50自徑向最外邊緣50A延伸至徑向最內邊緣50B。在此實施例中,參考點50R與徑向最內邊緣50B重合。然而,參考點50R可自徑向最內邊緣50B偏移。
Each of the plurality of outer spline non-transmission surfaces 50 includes a radially
圓周最大寬度MW1之總和等於或大於55mm。圓周最大寬度MW1之總和較佳地等於或大於60mm。圓周最大寬度MW1之總和較佳地等於或小於70mm。在此實施例中,圓周最大寬度MW1之總和為60.1mm。然而,圓周最大寬度MW1之總和不限於此實施例及以上範圍。 The sum of the maximum circumferential width MW1 is equal to or greater than 55mm. The sum of the maximum circumferential width MW1 is preferably equal to or greater than 60 mm. The sum of the maximum circumferential width MW1 is preferably equal to or less than 70 mm. In this embodiment, the sum of the maximum circumferential width MW1 is 60.1 mm. However, the sum of the maximum circumferential width MW1 is not limited to this embodiment and the above range.
如圖26中所見,至少一個外部花鍵齒40具有等於或小於34mm之外部花鍵頂徑DM11。外部花鍵頂徑DM11等於或小於33mm。外部花鍵頂徑DM11等於或大於29mm。在此實施例中,外部花鍵頂徑DM11為32.6mm。然而,外部花鍵頂徑DM11不限於此實施例及以上範圍。
As seen in Fig. 26, at least one
至少一個外部花鍵齒40具有外部花鍵底徑DM12。至少一個外部花鍵齒40具有外部花鍵齒根圓RC12,外部花鍵齒根圓RC12具有外部花鍵底徑DM12。然而,外部花鍵齒根圓RC12可具有不同於外部花鍵底徑DM12之另一直徑。外部花鍵底徑DM12等於或小於32mm。外部花鍵底徑DM12等於或小於31mm。外部花鍵底徑DM12等於或大於28mm。在此實施例中,外部花鍵底徑DM12為30.2mm。然而,外部花鍵底徑DM12不限於此實施例及以上範圍。
At least one
較大直徑部分42具有大於外部花鍵頂徑DM11之外徑DM13。外徑DM13範圍介於32mm至40mm。在此實施例中,外徑DM13為35mm。然而,外徑DM13不限於此實施例。
The
如圖25中所見,複數個外部花鍵傳動表面48各自包括自徑向最外邊緣48A至徑向最內邊緣48B界定之徑向長度RL11。複數個外部花鍵傳動表面48之徑向長度RL11的總和等於或大於7mm。徑向長度RL11之總和等於或大於10mm。徑向長度RL11之總等於或大於15mm。徑向長度RL11之總和等於或小於36mm。在此實施例中,徑向長度RL11之總和為16.6mm。然而,徑向長度RL11之總和不限於此實施例。
As seen in FIG. 25, the plurality of outer spline transmission surfaces 48 each include a radial length RL11 defined from the radially
複數個外部花鍵齒40具有額外徑向長度RL12。額外徑向長度RL12分別自外部花鍵齒根圓RC12至複數個外部花鍵齒40之徑向最外端40A界定。額外徑向長度RL12之總和等於或大於20mm。在此實施例中,額外徑向長度RL12之總和為31.2mm。然而,額外徑向長度RL12之總和不限於此實施例。
The plurality of
至少十個外部花鍵齒40中之至少一者相對於參考線CL1沿圓周對稱。相對於旋轉中心軸線A1在徑向方向上,參考線CL1自旋轉中心軸線A1延伸至至少十個外部花鍵齒40中之該至少一者之徑向最外端40A的圓周中心點CP1。然而,外部花鍵齒40中之至少一者可相對於參考線CL1具有不對稱形狀。至少十個外部花鍵齒40中之該至少一者包含外部花鍵傳動表面48及外部花鍵非傳動表面50。
At least one of the at least ten
複數個外部花鍵傳動表面48中之至少一個表面具有第一外部花鍵表面角AG11。第一外部花鍵表面角AG11界定於外部花鍵傳動表面48與第一徑向線L11之間。第一徑向線L11自自行車後輪轂總成12之旋轉中心軸線
A1延伸至外部花鍵傳動表面48之徑向最外邊緣48A。第一外部周節角PA11或第二外部周節角PA12界定於鄰近第一徑向線L11(見例如圖23)之間。
At least one of the plurality of external spline transmission surfaces 48 has a first external spline surface angle AG11. The first outer spline surface angle AG11 is defined between the outer
外部花鍵非傳動表面50中之至少一者具有第二外部花鍵表面角AG12。第二外部花鍵表面角AG12界定於外部花鍵非傳動表面50與第二徑向線L12之間。第二徑向線L12自自行車後輪轂總成12之旋轉中心軸線A1延伸至外部花鍵非傳動表面50之徑向最外邊緣50A。
At least one of the outer spline non-transmission surfaces 50 has a second outer spline surface angle AG12. The second outer spline surface angle AG12 is defined between the outer
在此實施例中,第二外部花鍵表面角AG12等於第一外部花鍵表面角AG11。然而,第一外部花鍵表面角AG11可不同於第二外部花鍵表面角AG12。 In this embodiment, the second outer spline surface angle AG12 is equal to the first outer spline surface angle AG11. However, the first outer spline surface angle AG11 may be different from the second outer spline surface angle AG12.
第一外部花鍵表面角AG11等於或小於6度。第一外部花鍵表面角AG11等於或大於0度。第二外部花鍵表面角AG12等於或小於6度。第二外部花鍵表面角AG12等於或大於0度。在此實施例中,第一外部花鍵表面角AG11為5度。第二外部花鍵表面角AG12為5度。然而,第一外部花鍵表面角AG11及第二外部花鍵表面角AG12不限於此實施例及以上範圍。 The first outer spline surface angle AG11 is equal to or less than 6 degrees. The first outer spline surface angle AG11 is equal to or greater than 0 degrees. The second outer spline surface angle AG12 is equal to or less than 6 degrees. The second outer spline surface angle AG12 is equal to or greater than 0 degrees. In this embodiment, the first outer spline surface angle AG11 is 5 degrees. The second outer spline surface angle AG12 is 5 degrees. However, the first outer spline surface angle AG11 and the second outer spline surface angle AG12 are not limited to this embodiment and above.
如圖27及圖28中所見,制動轉子支撐主體34包括經構形以與自行車制動轉子16(圖1)嚙合之至少一個額外外部花鍵齒52。在此實施例中,制動轉子支撐主體34包括額外基座支撐件54及複數個額外外部花鍵齒52。額外基座支撐件54具有管狀形狀且沿著旋轉中心軸線A1自輪轂主體36延伸。額外外部花鍵齒52自額外基座支撐件54徑向向外延伸。額外外部花鍵齒52之總數目為52。然而,額外外部花鍵齒52之總數目不限於此實施例。
As seen in Figures 27 and 28, the brake
如圖28中所見,至少一個額外外部花鍵齒52具有額外外部花鍵頂徑
DM14。如圖29中所見,額外外部花鍵頂徑DM14大於外部花鍵頂徑DM11。額外外部花鍵頂徑DM14大體上等於較大直徑部分42之外徑DM13。然而,額外外部花鍵頂徑DM14可等於或小於外部花鍵頂徑DM11。額外外部花鍵頂徑DM14可不同於較大直徑部分42之外徑DM13。
As seen in Figure 28, at least one additional
如圖29中所見,輪轂主體36包括第一輪輻安裝部分36A及第二輪輻安裝部分36B。複數個第一輪輻SK1耦接至第一輪輻安裝部分36A。複數個第二輪輻SK2耦接至第二輪輻安裝部分36B。在此實施例中,第一輪輻安裝部分36A包括複數個第一附接孔36A1。第一輪輻SK1延伸穿過第一附接孔36A1。第二輪輻安裝部分36B包括複數個第二附接孔36B1。第二輪輻SK2延伸穿過第二附接孔36B1。如本文中所使用,術語「輪輻安裝部分」涵蓋輪輻安裝開口具有凸緣狀形狀以使得輪輻安裝部分相對於如圖29中所見之自行車後輪轂總成之旋轉中心軸線徑向向外延伸的構形,及輪輻安裝部分為直接形成於輪轂主體之徑向外周邊表面上之開口的構形。
As seen in Fig. 29, the
第二輪輻安裝部分36B在軸向方向D2上與第一輪輻安裝部分36A間隔開。第一輪輻安裝部分36A在軸向方向D2上設置於鏈輪支撐主體28與第二輪輻安裝部分36B之間。第二輪輻安裝部分36B在軸向方向D2上設置於第一輪輻安裝部分36A與制動轉子支撐主體34之間。
The second spoke mounting
第一輪輻安裝部分36A具有第一軸向最外部分36C。第二輪輻安裝部分36B具有第二軸向最外部分36D。第一軸向最外部分36C包括在自行車後輪轂總成12安裝至自行車框架BF之狀態下在軸向方向D2上面朝向第一框架BF1之表面。第二軸向最外部分36D包括在自行車後輪轂總成12安裝至自行車框架BF之狀態下在軸向方向D2上面朝向第二框架BF2之表面。
The first spoke mounting
輪轂主體36包括第一軸向長度AL1。第一軸向長度AL1相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上界定於第一輪輻安裝部分36A之第一軸向最外部分36C與第二輪輻安裝部分36B之第二軸向最外部分36D之間。第一軸向長度AL1可等於或大於55mm。第一軸向長度AL1可等於或大於60mm。第一軸向長度AL1可等於或大於65mm。在此實施例中,第一軸向長度AL1可為67mm。然而,第一軸向長度AL1不限於此實施例及以上範圍。第一軸向長度AL1之實例包括55.7mm、62.3mm及67mm。
The
如圖29中所見,輪轂軸30包括第一軸向框架鄰接表面30B1及第二軸向框架鄰接表面30C1。在自行車後輪轂總成12安裝至自行車框架BF之下,第一軸向框架鄰接表面30B1經構形以相對於自行車後鏈輪總成14之旋轉中心軸線A1在軸向方向D2上鄰接自行車框架BF之第一部分BF12。第二軸向框架鄰接表面30C1經構形以在自行車後輪轂總成12安裝至自行車框架BF之狀態中在軸向方向D2上鄰接自行車框架BF之第二部分BF22。相比於第二軸向框架鄰接表面30C1,第一軸向框架鄰接表面30B1經定位成在軸向方向D2上更接近鏈輪支撐主體28。鏈輪支撐主體28在軸向方向D2上設置於第一軸向框架鄰接表面30B1與第二軸向框架鄰接表面30C1之間。
As seen in FIG. 29, the
輪轂軸30包括在軸向方向D2上界定於第一軸向框架鄰接表面30B1與第二軸向框架鄰接表面30C1之間的第二軸向長度AL2。第二軸向長度AL2可等於或大於140mm。第二軸向長度AL2可等於或大於145mm。第二軸向長度AL2可等於或大於147mm。第二軸向長度AL2可為148mm。然而,第二軸向長度AL2不限於此實施例及以上範圍。第二軸向長度AL2之
實例包括142mm、148mm及157mm。
The
第一軸向長度AL1與第二軸向長度AL2之比率可等於或大於0.3。第一軸向長度AL1與與第二軸向長度AL2之比率可等於或大於0.4。第一軸向長度AL1與與第二軸向長度AL2之比率可等於或大於0.5。舉例而言,第一軸向長度AL1(67mm)與第二軸向長度AL2(148mm)之比率為大致0.45。然而,第一軸向長度AL1與第二軸向長度AL2之比率不限於此實施例及以上範圍。第一軸向長度AL1與第二軸向長度AL2之比率的實例包括大致0.42(AL1為62.3mm且AL2為148mm),或包括大致0.39(AL1為55.7mm且AL2為142mm)。 The ratio of the first axial length AL1 to the second axial length AL2 may be equal to or greater than 0.3. The ratio of the first axial length AL1 to the second axial length AL2 may be equal to or greater than 0.4. The ratio of the first axial length AL1 to the second axial length AL2 may be equal to or greater than 0.5. For example, the ratio of the first axial length AL1 (67 mm) to the second axial length AL2 (148 mm) is approximately 0.45. However, the ratio of the first axial length AL1 to the second axial length AL2 is not limited to this embodiment and the above range. Examples of the ratio of the first axial length AL1 to the second axial length AL2 include approximately 0.42 (AL1 is 62.3 mm and AL2 is 148 mm), or include approximately 0.39 (AL1 is 55.7 mm and AL2 is 142 mm).
如圖6中所見,鏈輪支撐主體28包括第一軸向端28B、第二軸向端28C及軸向鏈輪鄰接表面28D。第二軸向端28C在軸向方向D2上與第一軸向端28B相對。軸向中心平面CPL在軸向方向D2上平分第二軸向長度AL2。軸向鏈輪鄰接表面28D經定位成在軸向方向D2上比第一軸向端28B更接近自行車後輪轂總成12之軸向中心平面CPL。第二軸向端28C經定位成在軸向方向D2上比鏈輪鄰接表面28D軸向地更接近自行車後輪轂總成12之軸向中心平面CPL。在此實施例中,軸向鏈輪鄰接表面28D設置於較大直徑部分42上,然而軸向鏈輪鄰接表面28D可根據需要設置於自行車後輪轂總成12之其他部分上。在自行車後鏈輪總成14安裝於鏈輪支撐主體28上之狀態中,軸向鏈輪鄰接表面28D與自行車後鏈輪總成14接觸。軸向鏈輪鄰接表面28D在軸向方向D2上面向第一軸向端28B。
As seen in Figure 6, the
如圖6中所見,鏈輪配置軸向長度AL3在軸向方向D2上界定於第一軸向框架鄰接表面30B1與鏈輪支撐主體28之軸向鏈輪鄰接表面28D之間。在此實施例中,鏈輪配置軸向長度AL3範圍介於35mm至45mm。舉例而
言,鏈輪配置軸向長度AL3為39.64mm。舉例而言,藉由省略較大直徑部分42,鏈輪配置軸向長度AL3亦可延伸直至44.25mm。然而,鏈輪配置軸向長度AL3不限於此實施例及以上範圍。
As seen in FIG. 6, the sprocket configuration axial length AL3 is defined in the axial direction D2 between the first axial frame abutting surface 30B1 and the axial
較大直徑部分42具有在軸向方向D2上離第一軸向框架鄰接表面30B1最遠之軸向端42A。額外軸向長度AL4在軸向方向D2上自第一軸向框架鄰接表面30B1至軸向端42A界定。額外軸向長度AL4範圍介於38mm至47mm。額外軸向長度AL4可範圍介於44mm至45mm。額外軸向長度AL4亦可範圍介於40mm至41mm。在此實施例中,額外軸向長度AL4為44.25mm。然而,額外軸向長度AL4不限於此實施例及以上範圍。
The
較大直徑部分42之較大直徑軸向長度AL5範圍介於3mm至6mm。在此實施例中,較大直徑軸向長度AL5為4.61mm。然而,較大直徑軸向長度AL5不限於此實施例及以上範圍。
The larger diameter axial length AL5 of the
第一軸向長度AL1與鏈輪配置軸向長度AL3之比率範圍介於1.2至1.7。舉例而言,若第一軸向長度AL1為55.7mm且鏈輪配置軸向長度AL3為39.64mm,則第一軸向長度AL1與鏈輪配置軸向長度AL3之比率為1.4。然而,第一軸向長度AL1與鏈輪配置軸向長度AL3之比率不限於此實施例及以上範圍。舉例而言,若第一軸向長度AL1為62.3mm且鏈輪配置軸向長度AL3為39.64mm,則第一軸向長度AL1對鏈輪配置軸向長度AL3之比率可為1.57,或若第一軸向長度AL1為67mm且鏈輪配置軸向長度AL3為39.64mm,則第一軸向長度AL1對鏈輪配置軸向長度AL3之比率可為1.69。 The ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 ranges from 1.2 to 1.7. For example, if the first axial length AL1 is 55.7 mm and the sprocket arrangement axial length AL3 is 39.64 mm, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 is 1.4. However, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 is not limited to this embodiment and the above range. For example, if the first axial length AL1 is 62.3mm and the sprocket arrangement axial length AL3 is 39.64mm, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 can be 1.57, or if the first If the axial length AL1 is 67 mm and the sprocket configuration axial length AL3 is 39.64 mm, the ratio of the first axial length AL1 to the sprocket configuration axial length AL3 can be 1.69.
如圖30中所見,鏈輪支撐構件37包括輪轂嚙合部分60及複數個支撐臂62。複數個支撐臂62自輪轂嚙合部分60徑向向外延伸。支撐臂62包括
第一附接部分62A至第八附接部分62H。複數個間隔件38包括複數個第一間隔件38A、複數個第二間隔件38B、複數個第三間隔件38C、複數個第四間隔件38D、複數個第五間隔件38E、複數個第六間隔件38F及複數個第七間隔件38G。
As seen in FIG. 30, the
如圖6中所見,第一間隔件38A設置於額外鏈輪SP5與SP6之間。第二間隔件38B設置於額外鏈輪SP6與SP7之間。第三間隔件38C設置於額外鏈輪SP7與SP8之間。第四間隔件38D設置於額外鏈輪SP8與SP9之間。第五間隔件38E設置於額外鏈輪SP9與SP10之間。第六間隔件38F設置於額外鏈輪SP10與SP11之間。第七間隔件38G設置於額外鏈輪SP11與SP12之間。
As seen in Figure 6, the
額外鏈輪SP6及第一間隔件38A藉由黏著劑37A附接至第一附接部分62A。額外鏈輪SP7及第二間隔件38B藉由黏著劑37A附接至第二附接部分62B。額外鏈輪SP8及第三間隔件38C藉由黏著劑37A附接至第三附接部分62C。額外鏈輪SP9及第四間隔件38D藉由黏著劑37A附接至第四附接部分62D。額外鏈輪SP10及第五間隔件38E藉由黏著劑37A附接至第五附接部分62E。額外鏈輪SP11及第六間隔件38F藉由黏著劑37A附接至第六附接部分62F。額外鏈輪SP12及第七間隔件38G藉由黏著劑37A附接至第七附接部分62G。額外鏈輪SP5及39B藉由黏著劑37A附接至第八附接部分62H。輪轂嚙合部分60、鏈輪SP1至SP4、第一環39A及第二環39B在軸向方向D2上固持於較大直徑部分42與鎖定構件32之徑向突出物32C之間。
The additional sprocket SP6 and the
在此實施例中,鏈輪SP1至SP12中之每一者由諸如鋁、鐵或鈦之金屬材料製成。鏈輪支撐構件37由包括樹脂材料之非金屬材料製成。第一間隔件38A至第七間隔件38G、第一環39A及第二環39B中之每一者由諸如
樹脂材料之非金屬材料製成。然而,鏈輪SP1至SP12中之至少一者可至少部分地由非金屬材料製成。鏈輪支撐構件37、第一間隔件38A至第七間隔件38G、第一環39A及第二環39B中之每一者至少部分地由諸如鋁、鐵或鈦之金屬材料製成。
In this embodiment, each of the sprockets SP1 to SP12 is made of a metal material such as aluminum, iron, or titanium. The
如圖7中所見,第一鏈輪SP1包括第一開口SP1K。第一開口SP1K具有第一最小直徑MD1。如圖31中所見,在自行車後鏈輪總成14安裝至鏈輪支撐主體28之狀態下,鎖定構件32之管狀主體32A延伸穿過第一鏈輪SP1之第一開口SP1K。在自行車後鏈輪總成14安裝至鏈輪支撐主體28之狀態下,第一鏈輪SP1之第一開口SP1K經構形以使得鎖定構件32之管狀主體32A的第一軸向端32D通過第一鏈輪SP1之第一開口SP1K。鏈輪支撐主體28之第一軸向端28B與第一鏈輪SP1之第一開口SP1K間隔開,而不延伸穿過第一開口SP1K。第一最小直徑MD1小於自行車後輪轂總成12之鏈輪支撐主體28的最小外徑MD28。在此實施例中,最小外徑MD28等於鏈輪支撐主體28之複數個外部花鍵齒40的外部花鍵底徑DM12(圖26)。
As seen in Figure 7, the first sprocket SP1 includes a first opening SP1K. The first opening SP1K has a first minimum diameter MD1. As seen in Fig. 31, in the state where the bicycle
如圖31中所見,管狀主體32A具有等於或小於27mm之第一外徑ED1。第一外徑ED1等於或大於26mm。徑向突出物32C具有等於或小於32mm之第二外徑ED2。第二外徑ED2等於或大於30mm。在此實施例中,第一外徑ED1為26.2mm。第二外徑ED2為30.8mm。然而,第一外徑ED1及第二外徑ED2中之至少一者不限於此實施例及以上範圍。
As seen in Fig. 31, the
徑向突出物32C具有界定於軸向方向D2中之軸向寬度ED3。舉例而言,徑向突出物32C之軸向寬度ED3為2mm。然而,軸向寬度ED3不限於此實施例。
The
鎖定構件32具有在軸向方向D2上自徑向突出物32C向第一軸向端
32D定義之軸向長度ED4。鎖定構件32之軸向長度ED4為10mm。然而,軸向長度ED4不限於此實施例。
The locking
如圖8中所見,第一鏈輪SP2包括第一開口SP2K。亦即,複數個第一鏈輪SP1及SP2各自包括第一開口。第一開口SP2K具有第一最小直徑MD2。如圖31中所見,在自行車後鏈輪總成14安裝至鏈輪支撐主體28之狀態下,鎖定構件32之管狀主體32A延伸穿過第一鏈輪SP2之第一開口SP2K。鏈輪支撐主體28之第一軸向端28B與第一鏈輪SP2之第一開口SP2K間隔開,而不延伸穿過第一開口SP2K。第一最小直徑MD2小於自行車後輪轂總成12之鏈輪支撐主體28的最小外徑MD28。
As seen in Figure 8, the first sprocket SP2 includes a first opening SP2K. That is, each of the plurality of first sprockets SP1 and SP2 includes a first opening. The first opening SP2K has a first minimum diameter MD2. As seen in Fig. 31, in the state where the bicycle
如圖9中所見,第二鏈輪SP3包括第二開口SP3K。第二開口SP3K具有第二最小直徑MD3。如圖31中所見,在自行車後鏈輪總成14安裝至鏈輪支撐主體28之狀態下,鎖定構件32之管狀主體32A及鏈輪支撐主體28延伸穿過第二鏈輪SP3之第二開口SP3K。鏈輪支撐主體28之第一軸向端28B在軸向方向D2上設置於第二開口SP3K與第一開口SP1K之間。鏈輪支撐主體28之第一軸向端28B在軸向方向D2上設置於第二開口SP3K與第一開口SP2K之間。第二最小直徑MD3等於或大於自行車後輪轂總成12之鏈輪支撐主體28的最小外徑MD28。
As seen in Figure 9, the second sprocket SP3 includes a second opening SP3K. The second opening SP3K has a second smallest diameter MD3. As seen in Figure 31, in the state where the bicycle
如圖10中所見,第二鏈輪SP4包括第二開口SP4K。亦即,複數個第二鏈輪SP3及SP4各自包括第二開口。第二開口SP4K具有第二最小直徑MD4。如圖31中所見,在自行車後鏈輪總成14安裝至鏈輪支撐主體28之狀態下,鏈輪支撐主體28延伸穿過第二鏈輪SP4之第二開口SP4K。鏈輪支撐主體28之第一軸向端28B在軸向方向D2上設置於第二開口SP4K與第一開口SP1K之間。第二最小直徑MD4等於或大於自行車後輪轂總成12之
鏈輪支撐主體28的最小外徑MD28。
As seen in FIG. 10, the second sprocket SP4 includes a second opening SP4K. That is, each of the plurality of second sprockets SP3 and SP4 includes a second opening. The second opening SP4K has a second smallest diameter MD4. As seen in FIG. 31, in the state where the bicycle
如圖32中所見,第一鏈輪SP2包括經構形以與自行車後輪轂總成12之鏈輪支撐主體28嚙合的至少十個內部花鍵齒63。至少十個內部花鍵齒63經提供至第一開口SP2K。至少十個內部花鍵齒63提供為第一鏈輪SP2之第一扭矩傳遞結構,如稍後描述。
As seen in FIG. 32, the first sprocket SP2 includes at least ten
第一鏈輪SP2之至少十個內部花鍵齒63的總數目等於或大於20。第一鏈輪SP2之至少十個內部花鍵齒63的總數目等於或大於28。內部花鍵齒63之總數目等於或小於72。在此實施例中,內部花鍵齒63之總數目為29。然而,內部花鍵齒63之總數目不限於此實施例及以上範圍。
The total number of at least ten
如圖9中所見,第二鏈輪SP3包括經構形以與自行車後輪轂總成12之鏈輪支撐主體28嚙合的至少十個內部花鍵齒64。在此實施例中,第二鏈輪SP3之至少十個內部花鍵齒64將第二最小直徑MD3定義為至少十個內部花鍵齒64之內部花鍵底徑。
As seen in FIG. 9, the second sprocket SP3 includes at least ten
第二鏈輪SP3該至少十個內部花鍵齒64之總數目等於或大於20。第二鏈輪SP3之至少十個內部花鍵齒64的總數目等於或大於28。內部花鍵齒64之總數目等於或小於72。在此實施例中,內部花鍵齒64之總數目為29。然而,內部花鍵齒64之總數目不限於此實施例及以上範圍。
The total number of the at least ten
如圖10中所見,第二鏈輪SP4包括經構形以與自行車後輪轂總成12之鏈輪支撐主體28嚙合的至少十個內部花鍵齒65。亦即,複數個第二鏈輪SP3及SP4各自包括經構形以與自行車後輪轂總成12之鏈輪支撐主體28嚙合的至少十個內部花鍵齒。在此實施例中,第二鏈輪SP4之至少十個內部花鍵齒65將第二最小直徑MD4定義為至少十個內部花鍵齒65之內部花鍵底徑。
As seen in FIG. 10, the second sprocket SP4 includes at least ten
第二鏈輪SP4之至少十個內部花鍵齒65之總數目等於或大於20。第二鏈輪SP4之至少十個內部花鍵齒65的總數目等於或大於28。內部花鍵齒65之總數目等於或小於72。在此實施例中,內部花鍵齒65之總數目為29。然而,內部花鍵齒65之總數目不限於此實施例及以上範圍。
The total number of at least ten
如圖33中所見,第二鏈輪SP3之至少十個內部花鍵齒64具有第一內部周節角PA21及第二內部周節角PA22。第二鏈輪SP3之至少十個內部花鍵齒64中的至少兩個內部花鍵齒相對於自行車後鏈輪總成14之旋轉中心軸線A1按第一內部周節角PA21沿圓周配置。至少十個內部花鍵齒64中之至少兩個內部花鍵齒在圓周方向D1上彼此鄰接,而在其間無另一花鍵齒。換言之,複數個內部花鍵齒64中之至少兩者相對於自行車後鏈輪總成14之旋轉中心軸線A1按第一內部周節角PA21沿圓周配置。第二鏈輪SP3之至少十個內部花鍵齒64中的至少其他兩個內部花鍵齒相對於旋轉中心軸線A1按第二內部周節角PA22沿圓周配置。第二鏈輪SP3之至少十個內部花鍵齒64中的至少其他兩個內部花鍵齒在圓周方向D1上彼此鄰接,而在其間無另一花鍵齒。換言之,第二鏈輪SP3之複數個內部花鍵齒64中之至少兩者相對於旋轉中心軸線A1按第二內部周節角PA22沿圓周配置。在此實施例中,第二內部周節角PA22不同於第一內部周節角PA21。然而,第二內部周節角PA22可大體上等於第一內部周節角PA21。
As seen in FIG. 33, at least ten
在此實施例中,內部花鍵齒64在圓周方向D1上按第一內部周節角PA21沿圓周配置。內部花鍵齒64中之兩個內部花鍵齒為在圓周方向D1上按第二內部周節角PA22配置。然而,內部花鍵齒64中之至少兩個內部花鍵齒可在圓周方向D1上以另一內部周節角配置。
In this embodiment, the
第一內部周節角PA21範圍介於5度至36度。第一內部周節角PA21範 圍介於10度至20度。第一內部周節角PA21等於或小於15度。在此實施例中,舉例而言,第一內部周節角PA21為12度。然而,第一內部周節角PA21不限於此實施例及以上範圍。 The first inner circumferential pitch angle PA21 ranges from 5 degrees to 36 degrees. The first inner corner angle PA21 fan The circumference ranges from 10 degrees to 20 degrees. The first inner pitch angle PA21 is equal to or less than 15 degrees. In this embodiment, for example, the first inner circumferential pitch angle PA21 is 12 degrees. However, the first inner circumferential pitch angle PA21 is not limited to this embodiment and the above range.
第二內部周節角PA22範圍介於5度至36度。在此實施例中,第二內部周節角PA22為24度。然而,第二內部周節角PA22不限於此實施例及以上範圍。 The second inner circumferential pitch angle PA22 ranges from 5 degrees to 36 degrees. In this embodiment, the second inner circumferential pitch angle PA22 is 24 degrees. However, the second inner circumferential pitch angle PA22 is not limited to this embodiment and the above range.
第二鏈輪SP3之至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之第二花鍵形狀的第一花鍵形狀。第二鏈輪SP3之至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之第二花鍵大小的第一花鍵大小。至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之橫截面形狀的橫截面形狀。然而,如圖34中所見,內部花鍵齒64可具有彼此相同的形狀。至少十個內部花鍵齒64可具有彼此相同的大小。至少十個內部花鍵齒64可具有彼此相同的橫截面形狀。
At least one of the at least ten
如圖35中所見,至少十個內部花鍵齒64中之至少一者包括內部花鍵傳動表面66。至少十個內部花鍵齒64中之至少一者包括內部花鍵非傳動表面68。至少十個內部花鍵齒64包括複數個內部花鍵傳動表面66以在踩踏期間接收來自自行車後輪轂總成12(圖6)之傳動旋轉力F1。至少十個內部花鍵齒64包括複數個內部花鍵非傳動表面68。內部花鍵傳動表面66可與鏈輪支撐主體28接觸以在踩踏期間將傳動旋轉力F1自鏈輪SP1傳遞至鏈輪支撐主體28。內部花鍵傳動表面66面向傳動旋轉方向D11。在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下,內部花鍵傳動表面66面向自行車後輪轂總成12之內部花鍵傳動表面48。內部花鍵非傳動表面
68在圓周方向D1上設置於內部花鍵傳動表面66之反向側上。內部花鍵非傳動表面68面向反向旋轉方向D12,從而在踩踏期間不將傳動旋轉力F1自鏈輪SP1傳遞至鏈輪支撐主體28。在自行車後鏈輪總成14安裝至自行車後輪轂總成12之狀態下,外部花鍵非傳動表面68面向自行車後輪轂總成12之內部花鍵非傳動表面50。
As seen in FIG. 35, at least one of the at least ten
至少十個內部花鍵齒64分別具有圓周最大寬度MW2。內部花鍵齒64分別具有圓周最大寬度MW2。圓周最大寬度MW2定義為接收施加至內部花鍵齒64之推力F3的最大寬度。圓周最大寬度MW2定義為基於內部花鍵傳動表面66之直線距離。
At least ten
複數個內部花鍵傳動表面66各自包括徑向最外邊緣66A及徑向最內邊緣66B。第二參考圓RC21界定於徑向最外邊緣66A上且以旋轉中心軸線A1為中心。第二參考圓RC21在參考點68R處與內部花鍵非傳動表面68相交。圓周最大寬度MW2在圓周方向D1上自徑向最內邊緣66B直線延伸至參考點68R。
The plurality of inner spline transmission surfaces 66 each include a radially
內部花鍵非傳動表面68包括徑向最外邊緣68A及徑向最內邊緣68B。內部花鍵非傳動表面68自徑向最外邊緣68A延伸至徑向最內邊緣68B。參考點68R設置於徑向最外邊緣68A與徑向最內邊緣68B之間。
The inner spline
圓周最大寬度MW2之總和等於或大於40mm。圓周最大寬度MW2之總和可等於或大於45mm。圓周最大寬度MW2之總和可等於或大於50mm。在此實施例中,圓周最大寬度MW2之總和為50.8mm。然而,圓周最大寬度MW2之總和不限於此實施例。 The sum of the maximum width MW2 of the circumference is equal to or greater than 40mm. The sum of the maximum circumference MW2 can be equal to or greater than 45mm. The sum of the maximum circumferential width MW2 can be equal to or greater than 50mm. In this embodiment, the sum of the maximum circumference MW2 is 50.8 mm. However, the sum of the maximum circumferential width MW2 is not limited to this embodiment.
如圖36中所見,第二鏈輪SP3之至少十個內部花鍵齒64具有內部花鍵頂徑DM21。第二鏈輪SP3之至少一個內部花鍵齒64具有具有內部花鍵頂
徑DM21之內部花鍵齒根圓RC22。內部花鍵頂徑DM21等於或小於34mm。第二鏈輪SP3之內部花鍵頂徑DM21等於或小於33mm。第二鏈輪SP3之內部花鍵頂徑DM21等於或大於29mm。在此實施例中,第二鏈輪SP3之內部花鍵頂徑DM21為32.8mm。然而,第二鏈輪SP3之內部花鍵頂徑DM21不限於此實施例及以上範圍。
As seen in Fig. 36, at least ten
第二鏈輪SP3之至少十個內部花鍵齒64具有等於或小於32mm之內部花鍵底徑DM22。內部花鍵底徑DM22等於或小於31mm。內部花鍵底徑DM22等於或大於28mm。在此實施例中,內部花鍵底徑DM22為30.4mm。然而,內部花鍵底徑DM22不限於此實施例及以上範圍。
At least ten
如圖18中所見,額外鏈輪SP12具有最大齒尖直徑TD12。最大齒尖直徑TD12為由複數個鏈輪齒SP12B界定之最大外徑。內部花鍵頂徑DM21(圖36)與最大齒尖直徑TD12之比率範圍介於0.15至0.18。在此實施例中,內部花鍵頂徑DM21與最大齒尖直徑TD12之比率為0.15。然而,內部花鍵頂徑DM21與最大齒尖直徑TD12之比率不限於此實施例及以上範圍。 As seen in Fig. 18, the additional sprocket SP12 has the largest tooth tip diameter TD12. The maximum tooth tip diameter TD12 is the maximum outer diameter defined by a plurality of sprockets SP12B. The ratio of the inner spline tip diameter DM21 (Figure 36) to the maximum tooth tip diameter TD12 ranges from 0.15 to 0.18. In this embodiment, the ratio of the inner spline tip diameter DM21 to the maximum tooth tip diameter TD12 is 0.15. However, the ratio of the inner spline tip diameter DM21 to the maximum tooth tip diameter TD12 is not limited to this embodiment and above.
如圖35中所見,複數個內部花鍵傳動表面66包括徑向最外邊緣66A及徑向最內邊緣66B。複數個內部花鍵傳動表面66各自包括自徑向最外邊緣66A至徑向最內邊緣66B界定之徑向長度RL21。複數個內部花鍵傳動表面66之徑向長度RL21之總和等於或大於7mm。徑向長度RL21之總和等於或大於10mm。徑向長度RL21之總和等於或大於15mm。在此實施例中,徑向長度RL21之總和等於或小於36mm。在此實施例中,徑向長度RL21之總和為16.6mm然而,徑向長度RL21之總和不限於此實施例及以上範圍。
As seen in Fig. 35, the plurality of inner spline transmission surfaces 66 include a radially
複數個內部花鍵齒64具有額外徑向長度RL22。額外徑向長度RL22分
別自內部花鍵齒根圓RC22至複數個內部花鍵齒64之徑向最內端64A界定。額外徑向長度RL22之總和等於或大於12mm。在此實施例中,額外徑向長度RL22之總和為34.8mm。然而,額外徑向長度RL22之總和不限於此實施例及以上範圍。
The plurality of
第二鏈輪SP3之至少十個內部花鍵齒64中之至少一者相對於參考線CL2沿圓周對稱。相對於旋轉中心軸線A1在徑向方向上,參考線CL2自旋轉中心軸線A1延伸至至少十個內部花鍵齒64中之該至少一者之徑向最外端64A的圓周中心點CP2。然而,內部花鍵齒64中之至少一者可相對於參考線CL2具有不對稱形狀。內部花鍵齒64中之至少一者包含內部花鍵傳動表面66及內部花鍵非傳動表面68。
At least one of the at least ten
內部花鍵傳動表面66具有第一內部花鍵表面角AG21。第一內部花鍵表面角AG21界定於內部花鍵傳動表面66與第一徑向線L21之間。第一徑向線L21自自行車後鏈輪總成14之旋轉中心軸線A1延伸至內部花鍵傳動表面66之徑向最外邊緣66A。第一內部周節角PA21或第二內部周節角PA22界定於相鄰第一徑向線L21(見例如圖33)之間。
The internal
內部花鍵非傳動表面68具有第二內部花鍵表面角AG22。第二內部花鍵表面角AG22界定於內部花鍵非傳動表面68與第二徑向線L22之間。第二徑向線L22自自行車後鏈輪總成14之旋轉中心軸線A1延伸至內部花鍵非傳動表面68之徑向最外邊緣68A。
The inner
在此實施例中,第二內部花鍵表面角AG22等於第一內部花鍵表面角AG21。然而,第一內部花鍵表面角AG21可不同於第二內部花鍵表面角AG22。 In this embodiment, the second internal spline surface angle AG22 is equal to the first internal spline surface angle AG21. However, the first internal spline surface angle AG21 may be different from the second internal spline surface angle AG22.
第一內部花鍵表面角AG21介於0度至6度。第二內部花鍵表面角 AG22範圍介於0度至6度。在此實施例中,第一內部花鍵表面角AG21為5度。第二內部花鍵表面角AG22為5度。然而,第一內部花鍵表面角AG21及第二內部花鍵表面角AG22不限於此實施例及以上範圍。 The first inner spline surface angle AG21 is between 0 degrees and 6 degrees. Surface angle of the second internal spline The range of AG22 is from 0 degrees to 6 degrees. In this embodiment, the first inner spline surface angle AG21 is 5 degrees. The second inner spline surface angle AG22 is 5 degrees. However, the first internal spline surface angle AG21 and the second internal spline surface angle AG22 are not limited to this embodiment and above.
如圖37中所見,內部花鍵齒64與外部花鍵齒40嚙合以將傳動旋轉力F1自第二鏈輪SP3傳遞至鏈輪支撐主體28。內部花鍵傳動表面66可與外部花鍵傳動表面48接觸以將傳動旋轉力F1自第二鏈輪SP3傳遞至鏈輪支撐主體28。在內部花鍵傳動表面66與外部花鍵傳動表面48接觸之狀態中,內部花鍵非傳動表面68與外部花鍵非傳動表面50間隔開。
As seen in FIG. 37, the
第一鏈輪SP2之內部花鍵齒63及第二鏈輪SP4之內部花鍵齒65與第二鏈輪SP3之內部花鍵齒64具有大體上相同之結構。因此,出於簡潔起見,此處將不作詳細描述。
The
如圖2中所見,鏈輪支撐構件37包括經構形以與自行車後輪轂總成12之鏈輪支撐主體28嚙合的至少十個內部花鍵齒76。複數個內部花鍵齒76具有與複數個內部花鍵齒64之結構大體上相同的結構。因此,出於簡潔起見,此處將不作詳細描述。
As seen in FIG. 2, the
如圖38中所見,第一鏈輪SP1包括第一扭矩傳遞結構SP1T,第一扭矩傳遞結構SP1T提供至第一向內側SP1H以直接地或間接地將踩踏扭矩傳遞至鏈輪支撐主體28。在此實施例中,第一扭矩傳遞結構SP1T包括複數個第一扭矩傳遞齒SP1T1以將踩踏扭矩間接地傳遞至鏈輪支撐主體28。第一扭矩傳遞結構SP1T包括至少十個第一扭矩傳遞齒SP1T1。較佳地,至少十個第一扭矩傳遞齒SP1T1之總數目等於或大於20。更佳地,至少十個第一扭矩傳遞齒SP1T1之總數目等於或大於28。在此實施例中,至少十個第一扭矩傳遞齒SP1T1之總數目為29。然而,至少十個第一扭矩傳遞齒
SP1T1之總數目不限於此實施例及以上範圍。
As seen in FIG. 38, the first sprocket SP1 includes a first torque transmission structure SP1T, and the first torque transmission structure SP1T is provided to the first inner side SP1H to directly or indirectly transmit the pedaling torque to the
如圖38及圖39中所見,第一鏈輪SP2包括第一向內側SP2H及第一向外側SP2G。相對於自行車後鏈輪總成14之旋轉中心軸線A1,第一向外側SP2G在軸向方向D2上與第一向內側SP2H相對。第一鏈輪SP2包括提供至第一向內側SP2H以將踩踏扭矩直接地或間接地傳遞至鏈輪支撐主體28之第一扭矩傳遞結構SP2M。在此實施例中,第一鏈輪SP2之內部花鍵齒63亦可被稱作第一扭矩傳遞齒63。第一扭矩傳遞結構SP2M包括複數個第一扭矩傳遞齒63以將踩踏扭矩直接傳遞至鏈輪支撐主體28。第一扭矩傳遞結構SP2M包括至少十個第一扭矩傳遞齒63。較佳地,至少十個第一扭矩傳遞齒63之總數目等於或大於20。更佳地,至少十個第一扭矩傳遞齒63之總數目等於或大於28。在此實施例中,至少十個第一扭矩傳遞齒63之總數目為29。然而,至少十個第一扭矩傳遞齒63之總數目不限於此實施例及以上範圍。第一扭矩傳遞齒63亦可被稱作內部花鍵齒63。
As seen in FIGS. 38 and 39, the first sprocket SP2 includes a first inner side SP2H and a first outer side SP2G. With respect to the rotation center axis A1 of the bicycle
如圖39中所見,第一鏈輪SP2包括用以接收來自第一鏈輪SP1之踩踏扭矩的第二扭矩傳遞結構SP2T。第二扭矩傳遞結構SP2T設置於第一向外側SP2G上。在此實施例中,第二扭矩傳遞結構SP2T包括複數個第二扭矩傳遞齒SP2T1。較佳地,第二扭矩傳遞齒SP2T1之總數目等於或大於20。更佳地,第二扭矩傳遞齒SP2T1之總數目等於或大於28。在此實施例中,第二扭矩傳遞齒SP2T1之總數目為29。然而,第二扭矩傳遞齒SP2T1之總數目不限於此實施例及以上範圍。第一扭矩傳遞結構SP1T與第二扭矩傳遞結構SP2T嚙合。複數個第一扭矩傳遞齒SP1T1與複數個第二扭矩傳遞齒SP2T1嚙合以傳遞傳動旋轉力F1。 As seen in FIG. 39, the first sprocket SP2 includes a second torque transmission structure SP2T to receive the pedaling torque from the first sprocket SP1. The second torque transmission structure SP2T is provided on the first outward direction SP2G. In this embodiment, the second torque transmission structure SP2T includes a plurality of second torque transmission teeth SP2T1. Preferably, the total number of second torque transmission teeth SP2T1 is equal to or greater than 20. More preferably, the total number of second torque transmission teeth SP2T1 is equal to or greater than 28. In this embodiment, the total number of second torque transmitting teeth SP2T1 is 29. However, the total number of second torque transmitting teeth SP2T1 is not limited to this embodiment and the above range. The first torque transmitting structure SP1T meshes with the second torque transmitting structure SP2T. The plurality of first torque transmission teeth SP1T1 mesh with the plurality of second torque transmission teeth SP2T1 to transmit the transmission rotational force F1.
如圖23及圖24中所見,鏈輪支撐主體28包括設置於基座支撐件41之
軸向端處的輪轂指示器28I。當沿旋轉中心軸線A1檢視時,輪轂指示器28I設置於第二外部周節角PA12之區域中。在此實施例中,輪轂指示器28I包括點。然而,輪轂指示器28I可包括其他形狀,諸如三角形及線。另外,輪轂指示器28I可為藉由諸如黏著劑之接合結構附接至鏈輪支撐主體28之分離構件。輪轂指示器28I之位置不限於此實施例。
As seen in Figures 23 and 24, the
如圖7中所見,第一鏈輪SP1包括設置於鏈輪主體SP1A之軸向端處的鏈輪指示器SP1I。在此實施例中,鏈輪指示器SP1I包括點。然而,鏈輪指示器SP1I可包括其他形狀,諸如三角形及線。另外,鏈輪指示器SP1I可為藉由諸如黏著劑之接合結構附接至鏈輪SP1之分離構件。鏈輪指示器SP1I之位置不限於此實施例。鏈輪指示器SP1I可提供至其他鏈輪SP2至SP12中之任一者。鏈輪指示器SP1I亦可提供至鏈輪支撐構件37。
As seen in Fig. 7, the first sprocket SP1 includes a sprocket indicator SP1I provided at the axial end of the sprocket body SP1A. In this embodiment, the sprocket indicator SP1I includes dots. However, the sprocket indicator SP1I may include other shapes such as triangles and lines. In addition, the sprocket indicator SP1I may be a separate member attached to the sprocket SP1 by a joining structure such as an adhesive. The position of the sprocket indicator SP1I is not limited to this embodiment. The sprocket indicator SP1I can be provided to any one of the other sprockets SP2 to SP12. The sprocket indicator SP1I may also be provided to the
如圖6中所見,自行車後輪轂總成12進一步包含自由輪結構78。鏈輪支撐主體28藉由自由輪結構78以操作方式耦接至輪轂主體36。自由輪結構78經構形以將鏈輪支撐主體28耦接至輪轂主體36,以在踩踏期間在傳動旋轉方向D11(圖5)上使鏈輪支撐主體28連同輪轂主體36旋轉。自由輪結構78經構形以允許鏈輪支撐主體28在惰轉期間在反旋轉方向D12(圖5)上相對於輪轂主體36旋轉。因此,自由輪結構78可解譯成單向離合器結構78。稍後將詳細描述自由輪結構78。
As seen in FIG. 6, the bicycle rear
自行車後輪轂總成12包括第一軸承79A及第二軸承79B。第一軸承79A及第二軸承79B設置於鏈輪支撐主體28與輪轂軸30之間以圍繞旋轉中心軸線A1相對於輪轂軸30可旋轉地支撐鏈輪支撐主體28。
The bicycle rear
在此實施例中,鏈輪支撐主體28、制動轉子支撐主體34及輪轂主體36中之每一者由諸如鋁、鐵或鈦之金屬材料製成。然而,鏈輪支撐主體
28、制動轉子支撐主體34及輪轂主體36中之至少一者可由非金屬材料製成。
In this embodiment, each of the
如圖40中所見,自由輪結構78包括第一棘輪構件80及第二棘輪構件82。第一棘輪構件80經構形以按扭矩傳遞方式與輪轂主體36及鏈輪支撐主體28中之一者嚙合。第二棘輪構件82經構形以按扭矩傳遞方式與輪轂主體36及鏈輪支撐主體28中之另一者嚙合。在此實施例中,第一棘輪構件80按扭矩傳遞方式與鏈輪支撐主體28嚙合。第二棘輪構件82按扭矩傳遞方式與輪轂主體36嚙合。然而,第一棘輪構件80可經構形以按扭矩傳遞方式與輪轂主體36嚙合。第二棘輪構件82可經構形以按扭矩傳遞方式與鏈輪支撐主體28嚙合。
As seen in FIG. 40, the
第一棘輪構件80安裝至鏈輪支撐主體28以圍繞旋轉中心軸線A1相對於輪轂主體36與鏈輪支撐主體28一起旋轉。第二棘輪構件82安裝至輪轂主體36以圍繞旋轉中心軸線A1相對於鏈輪支撐主體28與輪轂主體36一起旋轉。第一棘輪構件80及第二棘輪構件82中之每一者具有環狀形狀。
The
第一棘輪構件80及第二棘輪構件82中之至少一者可相對於旋轉中心軸線A1在軸向方向D2上相對於輪轂軸30移動。在此實施例中,第一棘輪構件80及第二棘輪構件82中之每一者可在軸向方向D2上相對於輪轂軸30移動。第二棘輪構件82可在軸向方向D2上相對於輪轂主體36移動。第一棘輪構件80可在軸向方向D2上相對於鏈輪支撐主體28移動。
At least one of the
輪轂主體36包括具有環狀形狀之自由輪外殼36H。自由輪外殼36H在軸向方向D2上延伸。第一棘輪構件80及第二棘輪構件82在已裝配狀態下設置於自由輪外殼36H中。
The
如圖41中所見,第一棘輪構件80包括至少一個第一棘輪齒80A。在
此實施例中,至少一個第一棘輪齒80A包括複數個第一棘輪齒80A。複數個第一棘輪齒80A在圓周方向D1上配置以提供鋸齒。
As seen in Figure 41, the
如圖42中所見,第二棘輪構件82包括經構形以按扭矩傳遞方式與至少一個第一棘輪齒80A嚙合的至少一個第二棘輪齒82A。至少一個第二棘輪齒82A與至少一個第一棘輪齒80A嚙合,以將旋轉力F1自鏈輪支撐主體28傳遞至輪轂主體36(圖40)。在此實施例中,至少一個第二棘輪齒82A包括經構形以按扭矩傳遞方式與複數個第一棘輪齒80A嚙合之複數個第二棘輪齒82A。複數個第二棘輪齒82A在圓周方向D1上配置以提供鋸齒複數個第二棘輪齒82A可與複數個第一棘輪齒80A嚙合。在第二棘輪齒82A與第一棘輪齒80A嚙合之狀態下,第一棘輪構件80與第二棘輪構件82一起旋轉。
As seen in Figure 42, the
如圖41及圖42中所見,鏈輪支撐主體28具有具有第一螺旋花鍵28H之外部周邊表面28P。第一棘輪構件80經構形以按扭矩傳遞方式與鏈輪支撐主體28嚙合,且包括與第一螺旋花鍵28H配合之第二螺旋花鍵80H。第一棘輪構件80在藉由自鏈輪支撐主體28施加之第一推力傳動期間經由與第一螺旋花鍵28H配合之第二螺旋花鍵80H在相對於鏈輪支撐主體28之軸向方向D2上可移動地安裝。在此實施例中,第一螺旋花鍵28H包括複數個螺旋外部花鍵齒46。第二螺旋花鍵80H包括與複數個螺旋外部花鍵齒46配合之複數個螺旋內部花鍵齒80H1。
As seen in Figs. 41 and 42, the
如圖43中所見,輪轂主體36包括內部周邊表面36S及至少一個第一齒36T。至少一個第一齒36T設置於內部周邊表面36S上。在此實施例中,自由輪外殼36H包括內部周邊表面36S。輪轂主體36包括複數個第一齒36T。複數個第一齒36T設置於內部周邊表面36S上,且相對於旋轉中心軸
線A1自內部周邊表面36S朝內徑向延伸。第一齒36T在圓周方向D1上配置以界定第一齒36T中之鄰近兩個齒之間的複數個凹槽36R。
As seen in Fig. 43, the
第二棘輪構件82包括輪轂主體嚙合部分82E,輪轂主體嚙合部分82E經由輪轂主體嚙合部分82E按扭矩傳遞方式與輪轂主體36嚙合以將旋轉力F1自第一棘輪構件80傳遞至輪轂主體36。輪轂主體嚙合部分82E及輪轂主體36中之一者包括徑向延伸之至少一個突出物。輪轂主體嚙合部分82E及輪轂主體36中之另一者包括與該至少一個突起部嚙合之至少一個凹槽。在此實施例中,輪轂主體嚙合部分82E包括徑向延伸之至少一個突出物82T作為至少一個突出物。輪轂主體36包括與至少一個突出物82T嚙合之至少一個凹槽36R。在此實施例中,輪轂主體嚙合部分82E包括複數個突出物82T。複數個突出物82T與複數個凹槽36R嚙合。
The
如圖42中所見,鏈輪支撐主體28之外部周邊表面28P具有經構形以在惰轉期間導引第一棘輪構件80朝向輪轂主體36之導引部分28G。導引部分28G經配置以與第一螺旋花鍵28H界定鈍角AG28(圖48)。鏈輪支撐主體28包括複數個導引部分28G。導引部分28G經構形以在惰轉或空轉期間導引第一棘輪構件80朝向輪轂主體36。導引部分28G在惰轉期間朝向輪轂主體36導引第一棘輪構件80以在至少一個第一棘輪齒80A(圖41)與至少一個第二棘輪齒82A之間釋放配合嚙合。導引部分28G經構形以使第一棘輪構件80在軸向方向D2上移動遠離第二棘輪構件82。導引部分28G相對於鏈輪支撐主體28至少在圓周方向D1上延伸。導引部分28G至少在圓周方向D1上自複數個螺旋外部花鍵齒46中之一個齒延伸。儘管在此實施例中導引部分28G與螺旋外部花鍵齒46一體地設置為單件式整體構件,但導引部分28G可為與複數個螺旋外部花鍵齒46分離的構件。由於導引部分28G,
第一棘輪構件80及第二棘輪構件82在惰轉期間彼此順利脫嚙,在導引部分28G經配置以相對於第一螺旋花鍵28H界定鈍角AG28之狀況下尤其如此。此亦引起在惰轉期間減少噪聲,此係因為至少一個第一棘輪齒80A及至少一個第二棘輪齒82A在惰轉期間順利地彼此分離。
As seen in FIG. 42, the outer
如圖40中所見,自行車後輪轂總成12進一步包含偏置構件84。偏置構件84安置於輪轂主體36與第一棘輪構件80之間,以在軸向方向D2上使第一棘輪構件80朝向第二棘輪構件82偏置。舉例而言,在此實施例中,偏置構件84為壓縮彈簧。
As seen in FIG. 40, the bicycle
如圖44中所見,偏置構件84在軸向方向D2上在輪轂主體36與第一棘輪構件80之間壓縮。偏置構件84朝向第二棘輪構件82偏置第一棘輪構件80以維持第一棘輪構件80與第二棘輪構件82經由第一棘輪齒80A及第二棘輪齒82A彼此嚙合之嚙合狀態。
As seen in Figure 44, the biasing
較佳地,偏置構件84與輪轂主體36嚙合以與輪轂主體36旋轉。偏置構件84安裝至輪轂主體36以圍繞旋轉中心軸線A1(圖40)與輪轂主體36一起旋轉。偏置構件84包括捲曲主體84A及連接端84B。輪轂主體36包括連接孔36F。連接端84B設置於連接孔36F中,以使得偏置構件84圍繞旋轉中心軸線A1(圖40)與輪轂主體36一起旋轉。
Preferably, the biasing
如圖44中所見,鏈輪支撐主體28之外周邊表面28P支撐第一棘輪構件80及第二棘輪構件82。第一棘輪構件80包括面向軸向方向D2之軸向表面80S。至少一個第一棘輪齒80A安置於第一棘輪構件80之軸向表面80S上。在此實施例中,複數個第一棘輪齒80A安置於第一棘輪構件80之軸向表面80S上。軸向表面80S大體上垂直於軸向方向D2。然而,軸向表面80S可不垂直於軸向方向D2。
As seen in FIG. 44, the outer
第二棘輪構件82包括面向軸向方向D2之軸向表面82S。至少一個第二棘輪齒82A安置於第二棘輪構件82之軸向表面82S上。第二棘輪構件82之軸向表面82S面朝第一棘輪構件80之軸向表面80S。在此實施例中,複數個第二棘輪齒82A安置於第二棘輪構件82之軸向表面82S上。軸向表面82S大體上垂直於軸向方向D2。然而軸向表面82S可不垂直於軸向方向D2。
The
如圖40中所見,自行車後輪轂總成12包含間隔件86、支撐構件88、滑動構件90、額外偏置構件92及收納構件94。然而,有可能自自行車後輪轂總成12省略間隔件86、支撐構件88、滑動構件90、額外偏置構件92及收納構件94中之至少一者。
As seen in FIG. 40, the bicycle
如圖44及圖45中所見,間隔件86在圍繞旋轉中心軸線A1界定之圓周方向D1上至少部分地設置於至少一個第一齒36T與至少一個突出物82T之間。在此實施例中,間隔件86在圓周方向D1上部分地設置於第一齒36T與突出物82T之間。然而,間隔件86可在圓周方向D1上完全設置於第一齒36T與突出物82T之間。
As seen in FIGS. 44 and 45, the
如圖45至圖47中所見,間隔件86包括設置於至少一個第一齒36T與至少一個突出物82T之間的至少一個中間部分86A。至少一個中間部分86A在圓周方向D1上設置於至少一個第一齒36T與至少一個突出物82T之間。在此實施例中,間隔件86包括分別在圓周方向D1上設置於第一齒36T與突出物82T之間的複數個中間部分86A。儘管間隔件86在此實施例中包括該等中間部分86A,但間隔件86可包括一個中間部分86A。
As seen in FIGS. 45 to 47, the
如圖46及圖47中所見,間隔件86包括連接部分86B。複數個中間部分86A在平行於旋轉中心軸線A1之軸向方向D2上自連接部分86B延伸。儘管間隔件86在此實施例中包括連接部分86B,但連接部分86B可為自間隔
件86省略。
As seen in FIGS. 46 and 47, the
間隔件86包括非金屬材料。在此實施例中,非金屬材料包括樹脂材料。樹脂材料之實例包括合成樹脂。作為樹脂材料之替代或補充,非金屬材料可包括除樹脂材料以外之材料。儘管中間部分86A與連接部分86B在此實施例中彼此一體地設置為單件式整體構件,但中間部分86A中之至少一者可為與連接部分86B分離之部分。
The
如圖44及圖45中所見,複數個中間部分86A在徑向方向上設置於輪轂主體36之內部周邊表面36S與第二棘輪構件82之外部周邊表面82P之間。
As seen in FIGS. 44 and 45, a plurality of
如圖44中所見,支撐構件88在軸向方向D2上設置於輪轂主體36與第二棘輪構件82之間。支撐構件88附接至第二棘輪構件82。支撐構件88自第一棘輪構件80徑向向外設置。支撐構件88可與第一棘輪構件80接觸。支撐構件88較佳地包括非金屬材料。由非金屬材料製成之支撐構件88在自行車後輪轂總成12之操作期間減少噪聲。在此實施例中,非金屬材料包括樹脂材料。作為樹脂材料之替代或補充,非金屬材料可包括除樹脂材料以外之材料。
As seen in FIG. 44, the
滑動構件90在平行於旋轉中心軸線A1之軸向方向D2上設置於鏈輪支撐主體28與第二棘輪構件82之間。第二棘輪構件82在軸向方向D2上設置於第一棘輪構件80與滑動構件90之間。滑動構件90較佳包括非金屬材料。由非金屬材料製成之滑動構件90在自行車後輪轂總成12之操作期間減少噪聲。在此實施例中,非金屬材料包括樹脂材料。作為樹脂材料之替代或補充,非金屬材料可包括除樹脂材料以外之材料。
The sliding
鏈輪支撐主體28包括鄰接件28E以鄰接第二棘輪構件82來限制第二棘
輪構件82遠離輪轂主體36之軸向移動。鄰接件28E可在此實施例中經由滑動構件90間接地鄰接第二棘輪構件82。替代地,鄰接件28E可直接鄰接第二棘輪構件82。第一棘輪構件80在軸向方向D2上安置於第二棘輪構件82之與鏈輪支撐主體28之鄰接件28E相對的軸向側上。滑動構件90在軸向方向D2上設置於鏈輪支撐主體28之鄰接件28E與第二棘輪構件82之間。
The
如圖44中所見,額外偏置構件92在軸向方向D2上設置於輪轂主體36與第二棘輪構件82之間,以使第二棘輪構件82朝向鏈輪支撐主體28偏置。在此實施例中,額外偏置構件92經由支撐構件88在軸向方向D2上使第二棘輪構件82偏置。額外偏置構件92自偏置構件84徑向向外設置。額外偏置構件92在此實施例中自複數個第二棘輪齒82A徑向向外設置。
As seen in FIG. 44, the additional biasing
收納構件94包括非金屬材料。由非金屬材料製成之收納構件94在自行車後輪轂總成12之操作期間防止偏置構件84過度扭轉。在此實施例中,非金屬材料包括樹脂材料。作為樹脂材料之替代或補充,非金屬材料可包括除樹脂材料以外之材料。收納構件94包括軸向收納部分96及徑向收納部分98。軸向收納部分96在軸向方向D2上設置於第一棘輪構件80與偏置構件84之間。徑向收納部分98在軸向方向D2上自軸向收納部分96延伸。徑向收納部分98自偏置構件84朝內徑向設置。軸向收納部分96與徑向收納部分98彼此一體地設置為單件式整體構件。然而,軸向收納部分96可為與徑向收納部分98分離之構件。
The
如圖44中所見,自行車後輪轂總成12包含密封結構100。密封結構100設置於鏈輪支撐主體28與輪轂主體36之間。輪轂主體36包括內部空間102。鏈輪支撐主體28、偏置構件84、第一棘輪構件80及第二棘輪構件82中之每一者至少部分地安置於輪轂主體36之內部空間102中。內部空間
102由密封結構100密封。在此實施例中,無潤滑劑設置於內部空間102中。然而,自行車後輪轂總成12可包含設置於內部空間102中之潤滑劑。相比與自行車後輪轂總成12可包含設置於內部空間102中之潤滑劑的狀況,若未設置潤滑劑,則可減少安置於內部空間102中之構件之間的每一間隙。
As seen in FIG. 44, the bicycle rear
將在下文參考圖44、圖48及圖49詳細描述自行車後輪轂總成12之操作。
The operation of the bicycle rear
如圖44中所見,軸向方向D2包括第一軸向方向D21及與第一軸向方向D21相反之第二軸向方向D22。偏置力F5在第一軸向方向D21上自偏置構件84施加至收納構件94。偏置構件84之偏置力F5使收納構件94、第一棘輪構件80、第二棘輪構件82及滑動構件90在第一軸向方向D21上朝向鏈輪支撐主體28偏置。此使第一棘輪齒80A與第二棘輪齒82A嚙合。
As seen in FIG. 44, the axial direction D2 includes a first axial direction D21 and a second axial direction D22 opposite to the first axial direction D21. The biasing force F5 is applied to the receiving
此外,如圖48中所見,當踩踏扭矩T1在傳動旋轉方向D11上輸入至鏈輪支撐主體28時,螺旋內部花鍵齒80H1在第一軸向方向D21上由螺旋外部花鍵齒46相對於鏈輪支撐主體28導引。此強有力地使第一棘輪齒80A與第二棘輪齒82A嚙合。在此狀態下,踩踏扭矩T1經由第一棘輪構件80及第二棘輪構件82(圖44)自鏈輪支撐主體28傳遞至輪轂主體36(圖44)。
In addition, as seen in FIG. 48, when the pedaling torque T1 is input to the
如圖48中所見,在惰轉期間,藉由偏置構件84(圖44)與第一棘輪構件80之間產生之旋轉摩擦力F6,第一棘輪構件80與導引部分28G接觸以自第二棘輪構件82脫嚙。如圖49中所見,惰轉扭矩T2在惰轉期間在傳動旋轉方向D11上施加至輪轂主體36。惰轉扭矩T2經由第二棘輪構件82(圖44)自輪轂主體36(圖44)傳遞至第一棘輪構件80。此時,由螺旋外部花鍵齒46在第二軸向方向D22上相對於鏈輪支撐主體28導引螺旋內部花鍵齒
80H1。此使第一棘輪構件80在第二軸向方向D22上抵抗偏置力F5相對於鏈輪支撐主體28移動。因此,第一棘輪構件80在第二軸向方向D22上移動遠離第二棘輪構件82,從而致使第一棘輪齒80A與第二棘輪齒82A之間的嚙合較弱。此允許第二棘輪構件82在傳動旋轉方向D11上相對於第一棘輪構件80旋轉,從而防止惰轉扭矩T2經由第一棘輪構件80及第二棘輪構件82自輪轂主體36傳遞至鏈輪支撐主體28。此時,第一棘輪齒80A在圓周方向D1上與第二棘輪齒82A一起滑動。
As seen in FIG. 48, during idling, by the rotational friction force F6 generated between the biasing member 84 (FIG. 44) and the
修改 modify
如圖50中所見,在上述實施例及其他修改中,外部花鍵齒40可包括在圓周方向D1上設置於外部花鍵傳動表面48與外部花鍵非傳動表面50之間的凹槽40G。凹槽40G減小自行車後輪轂總成12之重量。
As seen in FIG. 50, in the above-mentioned embodiments and other modifications, the
如圖51中所見,在上述實施例及其他修改中,內部花鍵齒64可包括在圓周方向D1上設置於內部花鍵傳動表面66與內部花鍵非傳動表面68之間的凹槽64G。凹槽64G減小自行車後鏈輪總成14之重量。
As seen in FIG. 51, in the above-mentioned embodiment and other modifications, the
在本申請案中,至少十個內部花鍵齒可間接地提供至第二鏈輪之第二開口,而在上述實施例中至少十個內部花鍵齒直接提供至第二鏈輪SP3及SP4中之每一者的第二開口。舉例而言,而非將至少十個內部花鍵齒直接提供至第二鏈輪SP3及/或第二鏈輪SP4之第二開口,第二鏈輪SP3及SP4中之至少一者可附接至包括至少十個內部花鍵齒之鏈輪支撐構件。替代地,而非將至少十個內部花鍵齒直接提供至第二鏈輪之第二開口,至少一個第二鏈輪可與包括至少十個內部花鍵齒之至少一個額外鏈輪一體成型為單件式整體構件。因為此第二鏈輪經由鏈輪支撐構件及/或額外鏈輪間接地包括至少十個內部花鍵齒,所以其亦意謂第二鏈輪包括經構形以與自 行車後輪轂總成之鏈輪支撐主體嚙合的至少十個內部花鍵齒。 In the present application, at least ten internal spline teeth can be indirectly provided to the second opening of the second sprocket, and in the above embodiment, at least ten internal spline teeth are directly provided to the second sprockets SP3 and SP4 The second opening of each. For example, instead of directly providing at least ten internal spline teeth to the second opening of the second sprocket SP3 and/or the second sprocket SP4, at least one of the second sprocket SP3 and SP4 may be attached Up to a sprocket supporting member including at least ten internal spline teeth. Alternatively, instead of providing at least ten internal spline teeth directly to the second opening of the second sprocket, at least one second sprocket may be integrally formed with at least one additional sprocket including at least ten internal spline teeth One-piece integral component. Because this second sprocket indirectly includes at least ten internal spline teeth via the sprocket support member and/or the additional sprocket, it also means that the second sprocket includes a configuration that is configured to At least ten internal spline teeth meshed by the sprocket support body of the rear wheel hub assembly.
自行車後鏈輪總成14可僅包括一個第一鏈輪或多於兩個第一鏈輪,而自行車後鏈輪總成14在上述實施例中包括兩個第一鏈輪SP1及SP2。
The bicycle
自行車後鏈輪總成14可僅包括一個第二鏈輪或多於兩個第二鏈輪,而自行車後鏈輪總成14在上述實施例中包括兩個第二鏈輪SP3及SP4。
The bicycle
如圖52中所見,在鏈輪支撐主體28中,至少十個外部花鍵齒40之總數目可範圍介於22至24。舉例而言,至少十個外部花鍵齒40之總數目可為23。第一外部周節角PA11可範圍介於13度至17度。舉例而言,第一外部周節角PA11可為15度。第二外部周節角PA12可範圍介於28度至32度。舉例而言,第二外部周節角PA12可為30度。第一外部周節角PA11為第二外部周節角PA12之一半。然而,第一外部周節角PA11可不同於第二外部周節角PA12之一半。至少十個外部花鍵齒40之總數目不限於以上修改及範圍。第一外部周節角PA11不限於以上修改及範圍。第二外部周節角PA12不限於以上修改及範圍。
As seen in FIG. 52, in the
如圖53中所見,在鏈輪支撐主體28中,複數個外部花鍵傳動表面48之徑向長度RL11的總和可範圍介於11mm至14mm。複數個外部花鍵傳動表面48之徑向長度RL11的總和可為12.5mm。額外徑向長度RL12之總和可範圍介於26mm至30mm。舉例而言,額外徑向長度RL12之總和可為28.2mm。然而,額外徑向長度RL12之總和不限於以上修改及範圍。
As seen in FIG. 53, in the
如圖54中所見,在第一鏈輪SP1之第一扭矩傳遞結構SP1T中,至少十個第一扭矩傳遞齒SP1T1之總數目可範圍介於22至24。舉例而言,至少十個第一扭矩傳遞齒SP1T1之總數目可為23。然而,至少十個第一扭矩傳遞齒SP1T1之總數目不限於以上修改及範圍。 As seen in FIG. 54, in the first torque transmission structure SP1T of the first sprocket SP1, the total number of at least ten first torque transmission teeth SP1T1 may range from 22 to 24. For example, the total number of at least ten first torque transmission teeth SP1T1 may be 23. However, the total number of at least ten first torque transmitting teeth SP1T1 is not limited to the above modification and range.
如圖55中所見,在第一鏈輪SP2之第二扭矩傳遞結構SP2T中,至少十個第二扭矩傳遞齒SP2T1之總數目可範圍介於22至24。舉例而言,至少十個第二扭矩傳遞齒SP2T1之總數目可為23。然而,至少十個第二扭矩傳遞齒SP2T1之總數目不限於以上修改及範圍。 As seen in FIG. 55, in the second torque transmitting structure SP2T of the first sprocket SP2, the total number of at least ten second torque transmitting teeth SP2T1 may range from 22 to 24. For example, the total number of at least ten second torque transmission teeth SP2T1 may be 23. However, the total number of at least ten second torque transmitting teeth SP2T1 is not limited to the above modification and range.
如圖56中所見,在第一鏈輪SP2中,第一鏈輪SP2之至少十個內部花鍵齒63之總數目可範圍介於22至24。舉例而言,第一鏈輪SP2之至少十個內部花鍵齒63之總數目可為23。然而,至少十個內部花鍵齒63之總數目不限於以上修改及範圍。
As seen in FIG. 56, in the first sprocket SP2, the total number of at least ten
如圖57中所見,在第二鏈輪SP3中,第二鏈輪SP3之至少十個內部花鍵齒64之總數目可範圍介於22至24。舉例而言,第二鏈輪SP3之至少十個內部花鍵齒64之總數目可為23。然而,至少十個內部花鍵齒64之總數目不限於以上修改及範圍。
As seen in FIG. 57, in the second sprocket SP3, the total number of at least ten
如圖58中所見,在第二鏈輪SP4中,第二鏈輪SP4之至少十個內部花鍵齒65的總數目可範圍介於22至24。舉例而言,第二鏈輪SP4之至少十個內部花鍵齒65之總數目可為23。然而,至少十個內部花鍵齒65之總數目不限於以上修改及範圍。
As seen in FIG. 58, in the second sprocket SP4, the total number of at least ten
如圖59中所見,在第二鏈輪SP3之至少十個內部花鍵齒64中,第一內部周節角PA21可範圍介於13度至17度。舉例而言,第一內部周節角PA21可為15度。第二內部周節角PA22可範圍介於28度至32度。舉例而言,第二內部周節角PA22可為30度。第一內部周節角PA21可為第二內部周節角PA22之一半。然而,第一內部周節角PA21可不同於第二內部周節角PA22之一半。第一內部周節角PA21不限於以上修改及範圍。第二內部周節角PA22不限於以上修改及範圍。
As seen in FIG. 59, among the at least ten
如圖60中所見,在第二鏈輪SP3之內部花鍵齒64中,複數個內部花鍵傳動表面66之徑向長度RL21之總和可範圍介於11mm至14mm。舉例而言,複數個內部花鍵傳動表面66之徑向長度RL21的總和可為12.5mm。然而,RL21徑向長度之總和不限於以上修改及範圍。額外徑向長度RL22之總和可範圍介於26mm至29mm。舉例而言,額外徑向長度RL22之總和為27.6mm。然而,額外徑向長度RL22之總和不限於此實施例及以上範圍。第一鏈輪SP2之內部花鍵齒63及第二鏈輪SP4之內部花鍵齒65與第二鏈輪SP3之內部花鍵齒64具有相同結構。
As seen in Fig. 60, in the
如圖61中所見,鏈輪支撐構件37之內部花鍵齒76可與圖57、圖59及圖60中所說明之第二鏈輪SP3之內部花鍵齒64結構相同。鏈輪支撐構件37之至少十個內部花鍵齒76的總數目可範圍介於22至24。舉例而言,鏈輪支撐構件37之至少十個內部花鍵齒76的總數目可為23。然而,至少十個內部花鍵齒76之總數目不限於以上修改及範圍。圖60中所說明之內部花鍵齒64的結構可適用於鏈輪支撐構件37之內部花鍵齒76。
As seen in FIG. 61, the
如圖62中所見,自行車後鏈輪總成14可包含額外鏈輪SP13。額外鏈輪SP13藉由複數個耦接構件SP13R耦接至額外鏈輪SP12。額外鏈輪SP13包括鏈輪主體SP13A及至少一個鏈輪齒SP13B。額外鏈輪SP13之鏈輪主體SP13A藉由複數個耦接構件SP13R耦接至額外鏈輪SP12之鏈輪主體SP12A。至少一個鏈輪齒SP13B自鏈輪主體SP13A徑向向外延伸。至少一個鏈輪齒SP13B之總數目大於至少一個鏈輪齒SP12B之總數目。較佳地,至少一個鏈輪齒SP13B之總齒數等於或大於46。更佳地,至少一個鏈輪齒SP13B之總齒數等於或大於50。舉例而言,至少一個鏈輪齒SP13B之總齒數為54。
As seen in Figure 62, the bicycle
鏈輪SP1至SP13之鏈輪齒SP1B至SP13B的齒輪廓可具有習知齒輪廓及/或窄寬齒輪廓。特定言之,作為窄-寬齒輪廓,鏈輪SP1至SP13之鏈輪齒SP1B至SP13B亦可包括至少一個第一齒及至少一個第二齒,該等第一齒各自具有第一軸向最大鏈嚙合寬度,該等第二齒各自具有小於第一軸向最大鏈嚙合寬度之第二軸向最大鏈嚙合寬度。沿著軸向方向D2量測第一軸向最大鏈嚙合寬度及第二軸向最大鏈嚙合寬度。第一軸向最大鏈嚙合寬度大於由自行車鏈20之一對內鏈板界定之軸向內鏈空間,且小於由自行車鏈20之一對外鏈板界定之軸向外鏈空間,其中當自行車鏈20與鏈輪SP1至SP13中之一者嚙合時,該對外鏈板在軸向方向D2上面向彼此。第二軸向最大鏈嚙合寬度小於由自行車鏈20之該對內鏈板界定之軸向內鏈空間。因此,至少一個第一齒經構形以與自行車鏈20之一對外鏈板嚙合,其中當自行車鏈20與鏈輪SP1至SP13中之一者嚙合時該對外鏈板在軸向方向D2上面向彼此,且至少一個第二齒經構形以與自行車鏈20之一對內鏈板嚙合,其中該對內鏈板在軸向方向D2上面向彼此。較佳地,至少一個第一齒與至少一個第二齒交替地安置於鏈輪SP1至SP13中之至少一者的外部周邊上。較佳地,鏈輪SP1至SP13之鏈輪齒SP1B至SP13B包括複數個第一齒及複數個第二齒,該等第一齒各自具有上文所提及之第一軸向最大鏈嚙合寬度,該等第二齒各自具有上文所提及之第二軸向最大鏈嚙合寬度。較佳地,複數個第一齒與複數個第二齒交替地安置於鏈輪SP1至SP13中之至少一者的外部周邊上。較佳地,最大鏈輪之鏈輪齒可具有此窄寬齒輪廓。因此,較佳地,圖6中之鏈輪SP12的鏈輪齒SP12B或圖62中之鏈輪SP13的鏈輪齒SP13B包括具有上文所提及之第一軸向最大鏈嚙合寬度之至少一個第一齒及具有上文所提及之第二軸向最大鏈嚙合寬度之至少一個第二齒。
The tooth profiles of the sprockets SP1B to SP13B of the sprockets SP1 to SP13 may have conventional tooth profiles and/or narrow-width tooth profiles. In particular, as a narrow-wide tooth profile, the sprockets SP1B to SP13B of the sprockets SP1 to SP13 may also include at least one first tooth and at least one second tooth, each of which has a first axial maximum Chain meshing width, each of the second teeth has a second axial maximum chain meshing width smaller than the first axial maximum chain meshing width. Measure the maximum chain engagement width in the first axis and the maximum chain engagement width in the second axis along the axial direction D2. The maximum chain engagement width in the first axial direction is greater than the axial inner chain space defined by a pair of inner chain plates of the
如本文所使用之術語「包含」及其派生詞意欲為指定陳述特徵、元件、組件、群組、整數及/或步驟的存在但不排除其他未陳述特徵、元件、組件、群組、整數及/或步驟的存在的開放術語。此概念亦適用於類似含義之詞語,例如術語「具有」、「包括」及其派生詞。 As used herein, the term "comprise" and its derivatives are intended to specify the existence of stated features, elements, components, groups, integers and/or steps but does not exclude other unstated features, elements, components, groups, integers and Open term for the presence of/or steps. This concept also applies to words with similar meanings, such as the terms "have", "include" and their derivatives.
術語「構件」、「區段」、「部分」、「部件」、「元件」、「主體」及「結構」在以單數形式使用時可具有單一部件或複數個部件之雙重含義。 The terms "component", "section", "part", "part", "component", "body" and "structure" when used in the singular form can have the dual meaning of a single part or a plurality of parts.
諸如本申請案中敍述的「第一」及「第二」之序數數目僅為標識符,而不具有任何其他含義,例如特定次序等等。此外,舉例而言,術語「第一元件」自身不暗示「第二元件」之存在,且術語「第二元件」自身不暗示「第一元件」之存在。 The ordinal numbers such as "first" and "second" described in this application are only identifiers and do not have any other meaning, such as a specific order, etc. In addition, for example, the term “first element” does not imply the existence of “second element”, and the term “second element” does not imply the existence of “first element”.
如本文中所使用之術語「對」可涵蓋除其中成對元件具有彼此相同之形狀或結構之構形外之其中成對元件具有彼此不同的形狀或結構之構形。 The term "pair" as used herein may encompass configurations in which the paired elements have different shapes or structures from each other except for the configuration in which the paired elements have the same shape or structure as each other.
因此,術語「一」、「一或多個」與「至少一個」在本文中可互換地使用。 Therefore, the terms "a", "one or more" and "at least one" are used interchangeably herein.
最後,如本文中所使用之諸如「大體上」、「大約」及「大致」之程度術語意謂所修飾之術語之合理量之偏差以使得最終結果並無顯著改變。本申請案中所描述之所有數值可被理解為包括諸如「大體上」、「大約」及「大致」之術語。 Finally, terms of degree such as "substantially", "approximately" and "approximately" as used herein mean a reasonable amount of deviation of the modified term so that the final result does not change significantly. All numerical values described in this application can be understood to include terms such as "substantially", "approximately" and "approximately".
顯然,根據以上教示,本發明之眾多修改及變化為可能的。因此應理解,在所附申請專利範圍之範疇內,可以不同於如本文特定描述之方式的其他方式實踐本發明。 Obviously, based on the above teachings, numerous modifications and variations of the present invention are possible. Therefore, it should be understood that, within the scope of the appended patent application, the present invention can be practiced in other ways than those specifically described herein.
10‧‧‧自行車傳動系統 10‧‧‧Bicycle transmission system
14‧‧‧自行車後鏈輪總成 14‧‧‧Bicycle rear sprocket assembly
28‧‧‧鏈輪支撐主體 28‧‧‧Sprocket support body
28A‧‧‧內螺紋部分 28A‧‧‧Internal thread part
28B‧‧‧第一軸向端 28B‧‧‧First axial end
28C‧‧‧第二軸向端 28C‧‧‧Second axial end
28D‧‧‧軸向鏈輪鄰接表面 28D‧‧‧Axial sprocket abutment surface
30‧‧‧輪轂軸 30‧‧‧Wheel Hub Shaft
30B‧‧‧第一軸端 30B‧‧‧First shaft end
30B1‧‧‧第一軸向框架鄰接表面 30B1‧‧‧Abutting surface of the first axial frame
32‧‧‧鎖定構件 32‧‧‧Locking member
32A‧‧‧管狀主體 32A‧‧‧Tube body
32B‧‧‧外螺紋部分 32B‧‧‧External thread part
32C‧‧‧徑向突出物 32C‧‧‧Radial protrusion
32D‧‧‧第一軸向端 32D‧‧‧First axial end
32E‧‧‧第二軸向端 32E‧‧‧Second axial end
36‧‧‧輪轂主體 36‧‧‧Wheel body
36A‧‧‧第一輪輻安裝部分 36A‧‧‧First spoke installation part
37‧‧‧鏈輪支撐構件 37‧‧‧Sprocket support member
37A‧‧‧黏著劑 37A‧‧‧Adhesive
38A‧‧‧第一間隔件 38A‧‧‧First spacer
38B‧‧‧第二間隔件 38B‧‧‧Second spacer
38C‧‧‧第三間隔件 38C‧‧‧Third spacer
38D‧‧‧第四間隔件 38D‧‧‧Fourth spacer
38E‧‧‧第五間隔件 38E‧‧‧Fifth spacer
38F‧‧‧第六間隔件 38F‧‧‧Sixth spacer
38G‧‧‧第七間隔件 38G‧‧‧Seventh spacer
39A‧‧‧第一環 39A‧‧‧First Ring
39B‧‧‧第二環 39B‧‧‧Second Ring
42‧‧‧較大直徑部分 42‧‧‧larger diameter part
42A‧‧‧軸向端 42A‧‧‧Axial end
44‧‧‧凸緣 44‧‧‧Flange
60‧‧‧輪轂嚙合部分 60‧‧‧Wheel hub engagement part
62‧‧‧支撐臂 62‧‧‧Support arm
62A‧‧‧第一附接部分 62A‧‧‧First attachment part
62B‧‧‧第二附接部分 62B‧‧‧Second attachment part
62C‧‧‧第三附接部分 62C‧‧‧The third attachment part
62D‧‧‧第四附接部分 62D‧‧‧Fourth attachment part
62E‧‧‧第五附接部分 62E‧‧‧Fifth attachment part
62F‧‧‧第六附接部分 62F‧‧‧The sixth attachment part
62G‧‧‧第七附接部分 62G‧‧‧The seventh attachment part
78‧‧‧自由輪結構 78‧‧‧Freewheel structure
79A‧‧‧第一軸承 79A‧‧‧First bearing
79B‧‧‧第二軸承 79B‧‧‧Second Bearing
A1‧‧‧中心軸線 A1‧‧‧Central axis
AL3‧‧‧鏈輪配置軸向長度 AL3‧‧‧Sprocket configuration axial length
AL4‧‧‧額外軸向長度 AL4‧‧‧Extra axial length
AL5‧‧‧較大直徑軸向長度 AL5‧‧‧large diameter axial length
CPL‧‧‧軸向中心平面 CPL‧‧‧Axial center plane
SP1‧‧‧第一鏈輪 SP1‧‧‧First sprocket
SP1G‧‧‧第一向內側 SP1G‧‧‧Inner first
SP1H‧‧‧第一向外側 SP1H‧‧‧The first outward
SP2‧‧‧第一鏈輪 SP2‧‧‧First sprocket
SP3‧‧‧第二鏈輪 SP3‧‧‧Second Sprocket
SP4‧‧‧第二鏈輪 SP4‧‧‧Second Sprocket
SP5‧‧‧額外鏈輪 SP5‧‧‧Extra sprocket
SP6‧‧‧額外鏈輪 SP6‧‧‧Extra sprocket
SP7‧‧‧額外鏈輪 SP7‧‧‧Extra sprocket
SP8‧‧‧額外鏈輪 SP8‧‧‧Extra sprocket
SP9‧‧‧額外鏈輪 SP9‧‧‧Extra sprocket
SP10‧‧‧額外鏈輪 SP10‧‧‧Extra sprocket
SP11‧‧‧額外鏈輪 SP11‧‧‧Extra sprocket
SP12‧‧‧額外鏈輪 SP12‧‧‧Extra sprocket
Claims (57)
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US15/608,915 | 2017-05-30 | ||
US15/608,924 | 2017-05-30 | ||
US15/608,924 US11332213B2 (en) | 2017-05-30 | 2017-05-30 | Bicycle rear sprocket assembly and bicycle drive train |
US15/608,915 US11059541B2 (en) | 2017-05-30 | 2017-05-30 | Bicycle hub assembly |
US15/673,346 | 2017-08-09 | ||
US15/673,346 US10377174B2 (en) | 2017-08-09 | 2017-08-09 | Bicycle hub assembly |
US15/686,177 US11179967B2 (en) | 2017-05-30 | 2017-08-25 | Bicycle hub assembly |
US15/686,179 | 2017-08-25 | ||
US15/686,177 | 2017-08-25 | ||
US15/686,179 US11220309B2 (en) | 2017-05-30 | 2017-08-25 | Bicycle rear sprocket assembly |
US201715712407A | 2017-09-22 | 2017-09-22 | |
US201715712388A | 2017-09-22 | 2017-09-22 | |
US15/712,388 | 2017-09-22 | ||
US15/712,407 | 2017-09-22 | ||
US15/851,785 US10752320B2 (en) | 2017-09-22 | 2017-12-22 | Bicycle rear hub assembly |
US15/851,781 | 2017-12-22 | ||
US15/851,785 | 2017-12-22 | ||
US15/851,781 US10946931B2 (en) | 2017-09-22 | 2017-12-22 | Bicycle rear sprocket assembly and bicycle drive train |
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TW201900494A TW201900494A (en) | 2019-01-01 |
TWI707802B true TWI707802B (en) | 2020-10-21 |
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TW109133515A TWI785387B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly and bicycle drive train |
TW107116092A TWI786113B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear hub assembly |
TW111140394A TW202323129A (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly and bicycle drive train |
TW108142953A TWI820259B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear hub assembly and sprocket support body |
TW107116090A TWI707802B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly and bicycle drive train |
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TW107116092A TWI786113B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear hub assembly |
TW111140394A TW202323129A (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly and bicycle drive train |
TW108142953A TWI820259B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear hub assembly and sprocket support body |
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JP2021191678A (en) | 2021-12-16 |
TW202323129A (en) | 2023-06-16 |
JP6918184B2 (en) | 2021-08-11 |
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CN108973524B (en) | 2022-01-04 |
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JP2018203242A (en) | 2018-12-27 |
CN110712474A (en) | 2020-01-21 |
CN108974239B (en) | 2021-07-20 |
CN114379280B (en) | 2024-04-19 |
TW202124212A (en) | 2021-07-01 |
CN110712474B (en) | 2023-08-08 |
JP7016290B2 (en) | 2022-02-04 |
TW202012207A (en) | 2020-04-01 |
CN108973524A (en) | 2018-12-11 |
CN114379280A (en) | 2022-04-22 |
TW201900446A (en) | 2019-01-01 |
TW201900494A (en) | 2019-01-01 |
JP2020138735A (en) | 2020-09-03 |
JP6670342B2 (en) | 2020-03-18 |
TWI786113B (en) | 2022-12-11 |
CN108974239A (en) | 2018-12-11 |
TWI785387B (en) | 2022-12-01 |
JP7232296B2 (en) | 2023-03-02 |
CN113581359A (en) | 2021-11-02 |
CN113581359B (en) | 2022-09-02 |
TWI820259B (en) | 2023-11-01 |
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