TWI785386B - Bicycle rear sprocket assembly - Google Patents
Bicycle rear sprocket assembly Download PDFInfo
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- TWI785386B TWI785386B TW109133511A TW109133511A TWI785386B TW I785386 B TWI785386 B TW I785386B TW 109133511 A TW109133511 A TW 109133511A TW 109133511 A TW109133511 A TW 109133511A TW I785386 B TWI785386 B TW I785386B
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- sprocket
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- bicycle rear
- assembly
- internal spline
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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
- B60B27/0015—Hubs for driven wheels
- B60B27/0021—Hubs for driven wheels characterised by torque transmission means from drive axle
- B60B27/0026—Hubs for driven wheels characterised by torque transmission means from drive axle of the radial type, e.g. splined key
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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
- B60B27/0047—Hubs characterised by functional integration of other elements
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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
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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
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
- F16D41/36—Freewheels or freewheel clutches specially adapted for cycles with clutching ring or disc axially shifted as a result of lost motion between actuating members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gears, Cams (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
本發明係關於一種自行車後鏈輪總成。 The invention relates to a bicycle rear sprocket assembly.
騎車正變成更日益流行的消遣形式以及交通方式。此外,騎車已變成業餘及專業人員兩者之非常流行的競技運動。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傳動系統。 Cycling is becoming an increasingly popular form of recreation as well as a mode of transportation. Furthermore, 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 of the bicycle components that has been fully redesigned is the drivetrain.
根據本發明之第一態樣,一種自行車後鏈輪總成包含具有等於或大於15之一總齒數的至少一個鏈輪。該至少一個鏈輪包括經構形以與一自行車輪轂總成嚙合之至少十個內部花鍵齒。 According to a first aspect of the present invention, a bicycle rear sprocket assembly includes at least one sprocket having a total number of teeth equal to or greater than 15. The at least one sprocket includes at least ten internal spline teeth configured to mesh with a bicycle hub assembly.
在根據第一態樣之自行車後鏈輪總成之情況下,相比於包括九個或更少內部花鍵齒之鏈輪,至少十個內部花鍵齒減少施加至至少十個內部花鍵齒中之每一者的旋轉力。此改良至少一個鏈輪之耐久性及/或改良挑選至少一個鏈輪之材料的自由度而不降低至少一個鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the first aspect, the reduction of at least ten internal spline teeth is applied to at least ten internal splines compared to a sprocket comprising nine or fewer internal spline teeth The rotational force of each of the teeth. This improves the durability of the at least one sprocket and/or improves the freedom to choose the material of the at least one sprocket without reducing the durability of the at least one sprocket.
根據本發明之第二態樣,如第一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之一總數目等於或大於20。 According to a second aspect of the invention, the bicycle rear sprocket assembly of the first aspect is configured such that the total number of one of the at least ten internal spline teeth is equal to or greater than twenty.
在根據第二態樣之自行車後鏈輪總成之情況下,相比於包括九個或 更少內部花鍵齒之鏈輪支撐主體,至少二十個內部花鍵齒減少施加至至少二十個內部花鍵齒中之每一者的旋轉力。此改良至少一個鏈輪之耐久性及/或改良挑選至少一個鏈輪之材料的自由度而不降低至少一個鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the second aspect, compared to including nine or A sprocket support body with fewer internal spline teeth, at least twenty internal spline teeth reduces rotational force applied to each of the at least twenty internal spline teeth. This improves the durability of the at least one sprocket and/or improves the freedom to choose the material of the at least one sprocket without reducing the durability of the at least one sprocket.
根據本發明之第三態樣,如第二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之該總數目等於或大於25。 According to a third aspect of the invention, the bicycle rear sprocket assembly of the second aspect is configured such that the total number of the at least ten internal spline teeth is equal to or greater than twenty-five.
在根據第三態樣之自行車後鏈輪總成之情況下,相比於包括九個或更少內部花鍵齒之鏈輪,至少二十五個內部花鍵齒進一步減少施加至至少二十五個內部花鍵齒中之每一者的旋轉力。此進一步改良至少一個鏈輪之耐久性及/或改良挑選至少一個鏈輪之材料的自由度而不降低至少一個鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the third aspect, a further reduction of at least twenty-five internal spline teeth is applied to at least twenty, compared to a sprocket comprising nine or fewer internal spline teeth. The rotational force of each of the five internal spline teeth. This further improves the durability of the at least one sprocket and/or improves the freedom to choose the material of the at least one sprocket without reducing the durability of the at least one sprocket.
根據本發明之第四態樣,如第一態樣至第三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 fourth aspect of the present invention, the bicycle rear sprocket assembly of any one of the first to third aspects is configured such that the at least ten internal spline teeth have a first internal pitch angle and a second inner pitch angle different from the first inner pitch angle.
在根據第四態樣之自行車後鏈輪總成之情況下,第一內部周節角與第二內部周節角之間的差異幫助使用者將自行車後鏈輪總成正確地安裝至自行車輪轂總成,尤其是關於自行車後鏈輪總成之每一鏈輪之圓周位置。 In the case of the bicycle rear sprocket assembly according to the fourth aspect, the difference between the first internal pitch angle and the second internal pitch angle helps the user to correctly install the bicycle rear sprocket assembly to the bicycle hub Assemblies, especially with respect to the circumferential position of each sprocket of the bicycle rear sprocket assembly.
根據本發明之第五態樣,如第一態樣至第四態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個鏈輪包括至少十個鏈輪。 According to a fifth aspect of the present invention, the bicycle rear sprocket assembly of any one of the first to fourth aspects is configured such that the at least one sprocket includes at least ten sprockets.
在根據第五態樣之自行車後鏈輪總成之情況下,至少十個鏈輪實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the fifth aspect, at least ten sprockets enable a wide range of bicycle rear sprockets.
根據本發明之第六態樣,如第一態樣至第四態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個鏈輪包括至少十一個鏈輪。 According to a sixth aspect of the present invention, the bicycle rear sprocket assembly of any one of the first to fourth aspects is configured such that the at least one sprocket includes at least eleven sprockets.
在根據第六態樣之自行車後鏈輪總成之情況下,至少十一個鏈輪實現自行車後鏈輪之更寬範圍。 In the case of the bicycle rear sprocket assembly according to the sixth aspect, at least eleven sprockets enable a wider range of bicycle rear sprockets.
根據本發明之第七態樣,如第一態樣至第四態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個鏈輪包括至少十二個鏈輪。 According to a seventh aspect of the present invention, the bicycle rear sprocket assembly of any one of the first to fourth aspects is configured such that the at least one sprocket includes at least twelve sprockets.
在根據第七態樣之自行車後鏈輪總成之情況下,至少十二個鏈輪實現自行車後鏈輪之更寬範圍。 In the case of the bicycle rear sprocket assembly according to the seventh aspect, at least twelve sprockets enable a wider range of bicycle rear sprockets.
根據本發明之第八態樣,如第一態樣至第七態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個鏈輪包括複數個鏈輪及經構形以與一自行車輪轂總成嚙合之至少一個內部花鍵齒。該複數個鏈輪包括具有一齒尖直徑之一最大鏈輪。該至少一個內部花鍵齒具有一內部花鍵頂徑。該內部花鍵頂徑對該齒尖直徑之一比率在0.1至0.2之範圍內。 According to an eighth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first to seventh aspects is configured such that the at least one sprocket includes a plurality of sprockets and is configured to At least one internal spline tooth engages with a bicycle hub assembly. The plurality of sprockets includes a largest sprocket having a tip diameter. The at least one internal spline tooth has an internal spline top diameter. The ratio of the internal spline crown diameter to the tip diameter is in the range of 0.1 to 0.2.
在根據第八態樣之自行車後鏈輪總成之情況下,比率實現自行車後鏈輪總成之寬範圍,同時改良至少一個鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the eighth aspect, the ratio enables a wide range of the bicycle rear sprocket assembly while improving the durability of at least one sprocket.
根據本發明之第九態樣,如第一態樣至第八態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個鏈輪包括一第一鏈輪及一第二鏈輪。該第一鏈輪具有一第一總齒數。該第二鏈輪具有小於該第一總齒數之一第二總齒數。該第一鏈輪包括至少一個第一移位促進區域以促進一自行車鏈條自該第二鏈輪移位至該第一鏈輪之一第一移位操作,且包括至少一個第二移位促進區域以促進該自行車鏈條自該第一鏈輪移位至該第二鏈輪之一第二移位操作。 According to a ninth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the eighth aspect is configured such that the at least one sprocket includes a first sprocket and a second sprocket sprocket. The first sprocket has a first total number of teeth. The second sprocket has a second total number of teeth less than one of the first total number of teeth. The first sprocket includes at least one first shift-facilitating region to facilitate a first shift operation of a bicycle chain from the second sprocket to the first sprocket, and includes at least one second shift-facilitating region to facilitate a second shifting operation of the bicycle chain from the first sprocket to the second sprocket.
在根據第九態樣之自行車後鏈輪總成之情況下,至少一個第一移位促進區域及至少一個第二移位促進區域使得第一移位操作及第二移位操作更順利。 In the case of the bicycle rear sprocket assembly according to the ninth aspect, at least one first shift promoting area and at least one second shift promoting area make the first shifting operation and the second shifting operation smoother.
根據本發明之第十態樣,如第一態樣至第九態樣中任一項之自行車後鏈輪總成進一步包含一鎖定構件,該鎖定構件經構形以阻止安裝於一自行車輪轂總成上之該至少一個鏈輪相對於該自行車後鏈輪總成之一旋轉中心軸線的一軸向移動。該鎖定構件包括一管狀主體部分及一突出部分。該管狀主體部分具有一中心軸線。該突出部分相對於該管狀主體部分之該中心軸線自該管狀主體部分徑向向外延伸。該管狀主體部分具有經構形以與該自行車輪轂總成之一內部帶螺紋部分嚙合的一外部帶螺紋部分。該突出部分經構形以鄰接該至少一個鏈輪。 According to a tenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first to ninth aspects further includes a locking member configured to prevent mounting on a bicycle hub assembly. An axial movement of the at least one sprocket wheel relative to a central axis of rotation of the bicycle rear sprocket assembly. The locking member includes a tubular body portion and a protruding portion. The tubular body portion has a central axis. The protruding portion extends radially outward from the tubular body portion relative to the central axis of the tubular body portion. The tubular body portion has an external threaded portion configured to engage an internal threaded portion of the bicycle hub assembly. The protruding portion is configured to abut the at least one sprocket.
在根據第十態樣之自行車後鏈輪總成之情況下,有可能將自行車後鏈輪總成附接至自行車輪轂總成以阻止至少一個鏈輪相對於自行車輪轂總成軸向移動。 In the case of the bicycle rear sprocket assembly according to the tenth aspect, it is possible to attach the bicycle rear sprocket assembly to the bicycle hub assembly to prevent axial movement of at least one sprocket relative to the bicycle hub assembly.
根據本發明之第十一態樣,如第十態樣之自行車後鏈輪總成經構形以使得該管狀主體部分具有等於或小於26mm之一第一外徑。 According to an eleventh aspect of the present invention, the bicycle rear sprocket assembly of the tenth aspect is configured such that the tubular body portion has a first outer diameter equal to or smaller than 26 mm.
在根據第十一態樣之自行車後鏈輪總成之情況下,第一外徑實現自行車後鏈輪總成之寬範圍,同時阻止至少一個鏈輪相對於自行車輪轂總成之軸向移動。 In the case of the bicycle rear sprocket assembly according to the eleventh aspect, the first outer diameter enables a wide range of the bicycle rear sprocket assembly while resisting axial movement of at least one sprocket relative to the bicycle hub assembly.
根據本發明之第十二態樣,如第十一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25mm。 According to a twelfth aspect of the present invention, the bicycle rear sprocket assembly of the eleventh aspect is configured such that the first outer diameter is equal to or greater than 25 mm.
在根據第十二態樣之自行車後鏈輪總成之情況下,第一外徑確保鎖定構件之強度,同時實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the twelfth aspect, the first outer diameter ensures the strength of the locking member while realizing a wide range of the bicycle rear sprocket assembly.
根據本發明之第十三態樣,如第十態樣至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突出部分具有等於或小於32mm之一第二外徑。 According to a thirteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the tenth aspect to the twelfth aspect is configured such that the protruding portion has a second outer shape equal to or smaller than 32 mm. path.
在根據第十三態樣之自行車後鏈輪總成之情況下,第二外徑實現自行車後鏈輪總成之寬範圍,同時阻止至少一個鏈輪相對於自行車輪轂總成軸向移動。 In the case of the bicycle rear sprocket assembly according to the thirteenth aspect, the second outer diameter enables a wide range of the bicycle rear sprocket assembly while resisting axial movement of at least one sprocket relative to the bicycle hub assembly.
根據本發明之第十四態樣,如第十三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 fourteenth aspect of the present invention, the bicycle rear sprocket assembly of the thirteenth aspect is configured such that the second outer diameter is equal to or greater than 30 mm.
在根據第十四態樣之自行車後鏈輪總成之情況下,第二外徑確保鎖定構件之強度,同時實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the fourteenth aspect, the second outer diameter ensures the strength of the locking member while realizing a wide range of the bicycle rear sprocket assembly.
根據本發明之第十五態樣,如第十態樣至第十四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 fifteenth aspect of the present invention, the bicycle rear sprocket assembly of any one of the tenth to fourteenth aspects is configured such that the locking member has a tool engaging portion.
在根據第十五態樣之自行車後鏈輪總成之情況下,有可能易於將鎖定構件附接至自行車輪轂總成且易於將鎖定構件與自行車輪轂總成脫離。 In the case of the bicycle rear sprocket assembly according to the fifteenth aspect, it is possible to easily attach the locking member to the bicycle hub assembly and to easily disengage the locking member from the bicycle hub assembly.
根據本發明之第十六態樣,如第一態樣至第十五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件。該至少一個鏈輪包括附接至該鏈輪支撐件之複數個鏈輪。 According to a sixteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first aspect to the fifteenth aspect further includes a sprocket support member. The at least one sprocket includes a plurality of sprockets attached to the sprocket support.
在根據第十六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 sixteenth aspect, it is possible to reduce the weight of the bicycle rear sprocket assembly.
根據本發明之第十七態樣,如第十六態樣之自行車後鏈輪總成經構形以使得該複數個鏈輪藉由一黏附劑附接至該鏈輪支撐件。 According to a seventeenth aspect of the present invention, the bicycle rear sprocket assembly of the sixteenth aspect is configured such that the sprockets are attached to the sprocket support member by an adhesive.
在根據第十七態樣之自行車後鏈輪總成之情況下,有可能減少或去除金屬緊固件。此有效地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 seventeenth aspect, it is possible to reduce or eliminate metal fasteners. This effectively reduces the weight of the bicycle rear sprocket assembly.
根據本發明之第十八態樣,如第十六態樣或第十七態樣之自行車後鏈輪總成經構形以使得該鏈輪支撐件由包括一樹脂材料之一非金屬材料製成。 According to an eighteenth aspect of the present invention, the bicycle rear sprocket assembly such as the sixteenth aspect or the seventeenth aspect is configured such that the sprocket supporting member is made of a non-metallic material including a resin material. become.
在根據第十八態樣之自行車後鏈輪總成之情況下,非金屬材料較有效地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 eighteenth aspect, the non-metallic material is more effective in reducing the weight of the bicycle rear sprocket assembly.
根據本發明之第十九態樣,如第一態樣至第十八態樣中任一項之自行車後鏈輪總成進一步包含一後輪轂鄰接表面,該後輪轂鄰接表面經構形以在該自行車後鏈輪總成安裝至一自行車輪轂總成之一狀態中在相對於該自行車後鏈輪總成之一旋轉中心軸線的一軸向方向上鄰接該自行車輪轂總成。該至少一個鏈輪包括複數個鏈輪,該複數個鏈輪包括一最大鏈輪。該最大鏈輪具有一軸向內表面及在該軸向方向上設置於該軸向內表面之一反向側上的一軸向外表面。相比於該軸向內表面,該軸向外表面在該軸向方向上更接近該後輪轂鄰接表面。在該軸向方向上界定於該軸向內表面與該後輪轂鄰接表面之間的一軸向距離等於或大於7mm。 According to a nineteenth aspect of the present invention, the bicycle rear sprocket assembly of any one of the first to eighteenth aspects further includes a rear hub abutment surface configured to The bicycle rear sprocket assembly adjoins the bicycle hub assembly in an axial direction relative to a rotation center axis of the bicycle rear sprocket assembly in a state of being mounted to a bicycle hub assembly. The at least one sprocket includes a plurality of sprockets, and the plurality of sprockets includes a largest sprocket. The largest sprocket has an axially inner surface and an axially outer surface disposed on an opposite side of the axially inner surface in the axial direction. The axially outer surface is closer in the axial direction to the rear hub abutment surface than the axially inner surface. An axial distance defined in the axial direction between the axial inner surface and the rear hub abutment surface is equal to or greater than 7 mm.
在根據第十九態樣之自行車後鏈輪總成之情況下,軸向距離實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the nineteenth aspect, the axial distance enables a wide range of bicycle rear sprockets.
根據本發明之第二十態樣,如第十九態樣之自行車後鏈輪總成經構形以使得該軸向距離等於或大於10mm。 According to a twentieth aspect of the present invention, the bicycle rear sprocket assembly of the nineteenth aspect is configured such that the axial distance is equal to or greater than 10 mm.
在根據第二十態樣之自行車後鏈輪總成之情況下,軸向距離進一步實現自行車後鏈輪之更寬範圍。 In the case of the bicycle rear sprocket assembly according to the twentieth aspect, the axial distance further enables a wider range of bicycle rear sprockets.
根據本發明之第二十一態樣,一種自行車後鏈輪總成包含至少一個鏈輪,該至少一個鏈輪具有等於或大於15之一總齒數。該至少一個鏈輪包括經構形以與一自行車輪轂總成嚙合之至少一個內部花鍵齒。該至少一個內部花鍵齒具有等於或小於30mm之一內部花鍵頂徑。 According to a twenty-first aspect of the present invention, a bicycle rear sprocket assembly includes at least one sprocket, and the at least one sprocket has a total number of teeth equal to or greater than 15. The at least one sprocket includes at least one internal spline tooth configured to mesh with a bicycle hub assembly. The at least one internal spline tooth has an internal spline crown diameter equal to or less than 30 mm.
在根據第二十一態樣之自行車後鏈輪總成之情況下,有可能製造總齒數等於或小於10之自行車後鏈輪。因此,有可能在高速齒輪側上加寬自 行車後鏈輪總成之齒輪範圍。第二十一態樣可與第一態樣至第二十態樣中之任一者組合。 In the case of the bicycle rear sprocket assembly according to the twenty-first aspect, it is possible to manufacture a bicycle rear sprocket with a total number of teeth equal to or less than 10. Therefore, it is possible to widen the self- Gear range of rear sprocket assembly. The twenty-first aspect can be combined with any one of the first aspect to the twentieth aspect.
根據本發明之第二十二態樣,如第二十一態樣之自行車後鏈輪總成經構形以使得該內部花鍵頂徑等於或大於25mm。 According to a twenty-second aspect of the present invention, the bicycle rear sprocket assembly of the twenty-first aspect is configured such that the inner spline top diameter is equal to or greater than 25 mm.
在根據第二十二態樣之自行車後鏈輪總成之情況下,有可能確保至少一個鏈輪之強度,同時在高速齒輪側上加寬自行車後鏈輪總成之齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-second aspect, it is possible to secure the strength of at least one sprocket while widening the gear range of the bicycle rear sprocket assembly on the high-speed gear side.
根據本發明之第二十三態樣,如第二十一態樣之自行車後鏈輪總成經構形以使得該內部花鍵頂徑等於或大於29mm。 According to a twenty-third aspect of the present invention, the bicycle rear sprocket assembly of the twenty-first aspect is configured such that the inner spline top diameter is equal to or greater than 29 mm.
在根據第二十三態樣之自行車後鏈輪總成之情況下,有可能進一步確保至少一個鏈輪之強度,同時在高速齒輪側上加寬自行車後鏈輪總成之齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-third aspect, it is possible to further secure the strength of at least one sprocket while widening the gear range of the bicycle rear sprocket assembly on the high-speed gear side.
根據本發明之第二十四態樣,如第二十一態樣至第二十三態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個內部花鍵齒具有等於或小於28mm之一內部花鍵底徑。 According to a twenty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the twenty-third aspect is configured such that the at least one internal spline tooth has a diameter equal to Or one of the internal spline bottom diameters less than 28mm.
在根據第二十四態樣之自行車後鏈輪總成之情況下,內部花鍵底徑可增大至少一個內部花鍵齒之傳動表面的徑向長度。此改良至少一個鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the twenty-fourth aspect, the inner spline bottom diameter may increase the radial length of the transmission surface of at least one inner spline tooth. This improves the strength of at least one sprocket.
根據本發明之第二十五態樣,如第二十四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25mm。 According to a twenty-fifth aspect of the present invention, the bicycle rear sprocket assembly of the twenty-fourth aspect is configured such that the inner spline bottom diameter is equal to or greater than 25 mm.
在根據第二十五態樣之自行車後鏈輪總成之情況下,有可能確保至少一個鏈輪之強度,同時在高速齒輪側上加寬自行車後鏈輪總成之齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-fifth aspect, it is possible to secure the strength of at least one sprocket while widening the gear range of the bicycle rear sprocket assembly on the high-speed gear side.
根據本發明之第二十六態樣,如第二十四態樣或第二十五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27mm。 According to a twenty-sixth aspect of the present invention, the bicycle rear sprocket assembly of the twenty-fourth aspect or the twenty-fifth aspect is configured such that the inner spline bottom diameter is equal to or greater than 27 mm.
在根據第二十六態樣之自行車後鏈輪總成之情況下,有可能確定地確保至少一個鏈輪之強度,同時在高速齒輪側上加寬自行車後鏈輪總成之齒輪範圍。 In the case of the bicycle rear sprocket assembly according to the twenty-sixth aspect, it is possible to surely secure the strength of at least one sprocket while widening the gear range of the bicycle rear sprocket assembly on the high-speed gear side.
根據本發明之第二十七態樣,如第二十一態樣至第二十六態樣中任一項之自行車後鏈輪總成經構形以使得該至少一個內部花鍵齒包括複數個內部花鍵齒,該複數個內部花鍵齒包括用以在踩踏期間傳輸一傳動旋轉力至該自行車輪轂總成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。該等徑向長度之一總和等於或大於7mm。 According to the twenty-seventh aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the twenty-sixth aspect is configured such that the at least one internal spline tooth includes a plurality of A plurality of internal spline teeth including a plurality of internal spline transmission surfaces for transmitting a transmission rotational force to the bicycle hub assembly during pedaling. Each of the plurality of internal spline drive 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 is equal to or greater than 7mm.
在根據第二十七態樣之自行車後鏈輪總成之情況下,有可能增大複數個內部花鍵傳動表面之徑向長度。此改良至少一個鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the twenty-seventh aspect, it is possible to increase the radial length of the plurality of internal spline drive surfaces. This improves the strength of at least one sprocket.
根據本發明之第二十八態樣,如第二十七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 twenty-eighth aspect of the present invention, the bicycle rear sprocket assembly of the twenty-seventh aspect is configured such that the sum of the radial lengths is equal to or greater than 10 mm.
在根據第二十八態樣之自行車後鏈輪總成之情況下,有可能進一步增大複數個內部花鍵傳動表面之徑向長度。此改良至少一個鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the twenty-eighth aspect, it is possible to further increase the radial length of the plurality of internal spline drive surfaces. This improves the strength of at least one sprocket.
根據本發明之第二十九態樣,如第二十七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 twenty-ninth aspect of the present invention, the bicycle rear sprocket assembly of the twenty-seventh aspect is configured such that the sum of the radial lengths is equal to or greater than 15 mm.
在根據第二十九態樣之自行車後鏈輪總成之情況下,有可能進一步增大複數個外部花鍵傳動表面之徑向長度。此進一步改良至少一個鏈輪之強度。 In the case of the bicycle rear sprocket assembly according to the twenty-ninth aspect, it is possible to further increase the radial length of the plurality of external spline drive surfaces. This further improves the strength of at least one sprocket.
根據本發明之第三十態樣,如第二十一態樣至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至少一個鏈輪包括至少十個鏈輪。 According to a thirtieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first to twenty-ninth aspects is configured such that the at least one sprocket includes at least ten chains wheel.
在根據第三十態樣之自行車後鏈輪總成之情況下,至少十個鏈輪實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the thirtieth aspect, at least ten sprockets realize a wide range of the bicycle rear sprocket assembly.
根據本發明之第三十一態樣,如第二十一態樣至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至少一個鏈輪包括至少十一個鏈輪。 According to the thirty-first aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the twenty-ninth aspect is configured such that the at least one sprocket includes at least eleven a sprocket.
在根據第三十一態樣之自行車後鏈輪總成之情況下,至少十一個鏈輪實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-first aspect, at least eleven sprockets enable a wide range of the bicycle rear sprocket assembly.
根據本發明之第三十二態樣,如第二十一態樣至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至少一個鏈輪包括至少十二個鏈輪。 According to the thirty-second aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the twenty-ninth aspect is configured such that the at least one sprocket includes at least twelve a sprocket.
在根據第三十二態樣之自行車後鏈輪總成之情況下,至少十二個鏈輪實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-second aspect, at least twelve sprockets enable a wide range of the bicycle rear sprocket assembly.
根據本發明之第三十三態樣,如第二十一態樣至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至少一個鏈輪包括複數個鏈輪。該複數個鏈輪包括具有一齒尖直徑之一最大鏈輪。該內部花鍵主徑對該齒尖直徑之一比率在0.1至0.2之範圍內。 According to a thirty-third aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the thirty-second aspect is configured such that the at least one sprocket includes a plurality of chains wheel. The plurality of sprockets includes a largest sprocket having a tip diameter. The ratio of the internal spline major diameter to tooth tip diameter is in the range of 0.1 to 0.2.
在根據第三十三態樣之自行車後鏈輪總成之情況下,比率實現自行車後鏈輪總成之寬範圍,同時改良至少一個鏈輪之耐久性。 In the case of the bicycle rear sprocket assembly according to the thirty-third aspect, the ratio enables a wide range of the bicycle rear sprocket assembly while improving the durability of at least one sprocket.
根據本發明之第三十四態樣,如第二十一態樣至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至少一個鏈輪包括一第一鏈輪及一第二鏈輪。該第一鏈輪具有一第一總齒數。該第二鏈輪具有小於該第一 總齒數之一第二總齒數。該第一鏈輪包括至少一個第一移位促進區域以促進一自行車鏈條自該第二鏈輪移位至該第一鏈輪之一第一移位操作,且包括至少一個第二移位促進區域以促進該自行車鏈條自該第一鏈輪移位至該第二鏈輪之一第二移位操作。 According to the thirty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the thirty-second aspect is configured such that the at least one sprocket includes a first sprocket and a second sprocket. The first sprocket has a first total number of teeth. The second sprocket has a smaller One of the total number of teeth and the second total number of teeth. The first sprocket includes at least one first shift-facilitating region to facilitate a first shift operation of a bicycle chain from the second sprocket to the first sprocket, and includes at least one second shift-facilitating region to facilitate a second shifting operation of the bicycle chain from the first sprocket to the second sprocket.
在根據第三十四態樣之自行車後鏈輪總成之情況下,至少一個第一移位促進區域及至少一個第二移位促進區域使得第一移位操作及第二移位操作更順利。 In the case of the bicycle rear sprocket assembly according to the thirty-fourth aspect, at least one first shift promoting area and at least one second shift promoting area make the first shifting operation and the second shifting operation smoother .
根據本發明之第三十五態樣,如第二十一態樣至第三十四態樣中任一項之自行車後鏈輪總成進一步包含一鎖定構件,該鎖定構件經構形以阻止安裝於一自行車輪轂總成上之該至少一個鏈輪相對於該自行車後鏈輪總成之一旋轉中心軸線的一軸向移動。該鎖定構件包括一管狀主體部分及一突出部分。該管狀主體部分具有一中心軸線。該突出部分相對於該管狀主體部分之該中心軸線自該管狀主體部分徑向向外延伸。該管狀主體部分具有經構形以與該自行車輪轂總成之一內部帶螺紋部分嚙合的一外部帶螺紋部分。該突出部分經構形以鄰接該至少一個鏈輪。 According to the thirty-fifth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the thirty-fourth aspect further includes a locking member configured to prevent An axial movement of the at least one sprocket mounted on a bicycle hub assembly relative to a central axis of rotation of the bicycle rear sprocket assembly. The locking member includes a tubular body portion and a protruding portion. The tubular body portion has a central axis. The protruding portion extends radially outward from the tubular body portion relative to the central axis of the tubular body portion. The tubular body portion has an external threaded portion configured to engage an internal threaded portion of the bicycle hub assembly. The protruding portion is configured to abut the at least one sprocket.
在根據第三十五態樣之自行車後鏈輪總成之情況下,有可能將自行車後鏈輪總成附接至自行車輪轂總成以阻止至少一個鏈輪相對於自行車輪轂總成軸向移動。 In the case of the bicycle rear sprocket assembly according to the thirty-fifth aspect, it is possible to attach the bicycle rear sprocket assembly to the bicycle hub assembly to prevent axial movement of at least one sprocket relative to the bicycle hub assembly .
根據本發明之第三十六態樣,如第三十五態樣之自行車後鏈輪總成經構形以使得該管狀主體部分具有等於或小於26mm之一第一外徑。 According to a thirty-sixth aspect of the present invention, the bicycle rear sprocket assembly of the thirty-fifth aspect is configured such that the tubular body portion has a first outer diameter equal to or smaller than 26 mm.
在根據第三十六態樣之自行車後鏈輪總成之情況下,第一外徑實現自行車後鏈輪總成之寬範圍,同時阻止至少一個鏈輪相對於自行車輪轂總成之軸向移動。 In the case of the bicycle rear sprocket assembly according to the thirty-sixth aspect, the first outer diameter enables a wide range of the bicycle rear sprocket assembly while resisting axial movement of at least one sprocket relative to the bicycle hub assembly .
根據本發明之第三十七態樣,如第三十六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25mm。 According to a thirty-seventh aspect of the present invention, the bicycle rear sprocket assembly of the thirty-sixth aspect is configured such that the first outer diameter is equal to or greater than 25 mm.
在根據第三十七態樣之自行車後鏈輪總成之情況下,第一外徑確保鎖定構件之強度,同時實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-seventh aspect, the first outer diameter ensures the strength of the locking member while realizing a wide range of the bicycle rear sprocket assembly.
根據本發明之第三十八態樣,如第三十五態樣至第三十七態樣中任一項之自行車後鏈輪總成經構形以使得該突出部分具有等於或小於32mm之一第二外徑。 According to a thirty-eighth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the thirty-fifth aspect to the thirty-seventh aspect is configured such that the protruding portion has a diameter equal to or smaller than 32 mm. a second outer diameter.
在根據第三十八態樣之自行車後鏈輪總成之情況下,第二外徑實現自行車後鏈輪總成之寬範圍,同時阻止至少一個鏈輪相對於自行車輪轂總成軸向移動。 In the case of the bicycle rear sprocket assembly according to the thirty-eighth aspect, the second outer diameter enables a wide range of the bicycle rear sprocket assembly while resisting axial movement of at least one sprocket relative to the bicycle hub assembly.
根據本發明之第三十九態樣,如第三十八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 thirty-ninth aspect of the present invention, the bicycle rear sprocket assembly according to the thirty-eighth aspect is configured such that the second outer diameter is equal to or greater than 30 mm.
在根據第三十九態樣之自行車後鏈輪總成之情況下,第二外徑確保鎖定構件之強度,同時實現自行車後鏈輪總成之寬範圍。 In the case of the bicycle rear sprocket assembly according to the thirty-ninth aspect, the second outer diameter ensures the strength of the locking member while realizing a wide range of the bicycle rear sprocket assembly.
根據本發明之第四十態樣,如第三十五態樣至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鎖定構件具有一工具嚙合部分。 According to a fortieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the thirty-fifth aspect to the thirty-ninth aspect is configured such that the locking member has a tool engaging portion.
在根據第四十態樣之自行車後鏈輪總成之情況下,有可能易於將鎖定構件附接至自行車輪轂總成且易於將鎖定構件與自行車輪轂總成脫離。 In the case of the bicycle rear sprocket assembly according to the fortieth aspect, it is possible to easily attach the locking member to the bicycle hub assembly and to easily disengage the locking member from the bicycle hub assembly.
根據本發明之第四十一態樣,如第二十一態樣至第四十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件。該至少一個鏈輪包括附接至該鏈輪支撐件之複數個鏈輪。 According to the forty-first aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the fortieth aspect further includes a sprocket support member. The at least one sprocket includes a plurality of sprockets attached to the sprocket support.
在根據第四十一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 forty-first aspect, it is possible to reduce the weight of the bicycle rear sprocket assembly.
根據本發明之第四十二態樣,如第四十一態樣之自行車後鏈輪總成經構形以使得該複數個鏈輪藉由一黏附劑附接至該鏈輪支撐件。 According to a forty-second aspect of the present invention, the bicycle rear sprocket assembly of the forty-first aspect is configured such that the plurality of sprockets are attached to the sprocket support member by an adhesive.
在根據第四十二態樣之自行車後鏈輪總成之情況下,有可能減少或去除金屬緊固件。此有效地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 forty-second aspect, it is possible to reduce or eliminate metal fasteners. This effectively reduces the weight of the bicycle rear sprocket assembly.
根據本發明之第四十三態樣,如第四十一態樣或第四十二態樣之自行車後鏈輪總成經構形以使得該鏈輪支撐件由包括一樹脂材料之一非金屬材料製成。 According to the forty-third aspect of the present invention, the bicycle rear sprocket assembly such as the forty-first aspect or the forty-second aspect is configured so that the sprocket support Made of metal material.
在根據第四十三態樣之自行車後鏈輪總成之情況下,非金屬材料較有效地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 forty-third aspect, the non-metallic material is more effective in reducing the weight of the bicycle rear sprocket assembly.
根據本發明之第四十四態樣,如第二十一態樣至第四十三態樣中任一項之自行車後鏈輪總成進一步包含一後輪轂鄰接表面,該後輪轂鄰接表面經構形以在該自行車後鏈輪總成安裝至一自行車輪轂總成之一狀態中在相對於該自行車後鏈輪總成之一旋轉中心軸線的一軸向方向上鄰接該自行車輪轂總成。該至少一個鏈輪包括複數個鏈輪,該複數個鏈輪包括一最大鏈輪。該最大鏈輪具有一軸向內表面及在該軸向方向上設置於該軸向內表面之一反向側上的一軸向外表面。相比於該軸向內表面,該軸向外表面在該軸向方向上更接近該後輪轂鄰接表面。在該軸向方向上界定於該軸向內表面與該後輪轂鄰接表面之間的一軸向距離等於或大於7mm。 According to the forty-fourth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the twenty-first aspect to the forty-third aspect further includes a rear hub abutment surface, and the rear hub abutment surface is passed through configured to abut the bicycle hub assembly in an axial direction relative to a rotational center axis of the bicycle rear sprocket assembly in a state where the bicycle rear sprocket assembly is mounted to a bicycle hub assembly. The at least one sprocket includes a plurality of sprockets, and the plurality of sprockets includes a largest sprocket. The largest sprocket has an axially inner surface and an axially outer surface disposed on an opposite side of the axially inner surface in the axial direction. The axially outer surface is closer in the axial direction to the rear hub abutment surface than the axially inner surface. An axial distance defined in the axial direction between the axial inner surface and the rear hub abutment surface is equal to or greater than 7 mm.
在根據第四十四態樣之自行車後鏈輪總成之情況下,軸向距離實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-fourth aspect, the axial distance enables a wide range of bicycle rear sprockets.
根據本發明之第四十五態樣,如第四十四態樣之自行車後鏈輪總成經構形以使得該軸向距離等於或大於10mm。 According to a forty-fifth aspect of the present invention, the bicycle rear sprocket assembly of the forty-fourth aspect is configured such that the axial distance is equal to or greater than 10 mm.
在根據第四十五態樣之自行車後鏈輪總成之情況下,軸向距離進一 步實現自行車後鏈輪之較寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-fifth aspect, the axial distance is further The first step to achieve a wider range of bicycle rear sprockets.
根據本發明之第四十六態樣,一種自行車後鏈輪總成包含複數個鏈輪、一後輪轂鄰接表面及一軸向距離。該複數個鏈輪包括一最大鏈輪。該最大鏈輪具有一軸向內表面及在相對於該自行車後鏈輪總成之一旋轉中心軸線的一軸向方向上設置於該軸向內表面之一反向側上的一軸向外表面。該後輪轂鄰接表面經構形以在該自行車後鏈輪總成安裝至一自行車輪轂總成之一狀態中在該軸向方向上鄰接該自行車輪轂總成,相比於該軸向內表面,該軸向外表面在該軸向方向上更接近該後輪轂鄰接表面。在該軸向方向上界定於該軸向內表面與該後輪轂鄰接表面之間的該軸向距離等於或大於7mm。 According to a forty-sixth aspect of the present invention, a bicycle rear sprocket assembly includes a plurality of sprockets, a rear hub abutment surface and an axial distance. The plurality of sprockets includes a largest sprocket. The largest sprocket has an axially inner surface and an axially outer surface disposed on an opposite side of the axially inner surface in an axial direction relative to a rotational center axis of the bicycle rear sprocket assembly. surface. The rear hub abutment surface is configured to abut the bicycle hub assembly in the axial direction in a state in which the bicycle rear sprocket assembly is mounted to a bicycle hub assembly, compared to the axially inner surface, The axially outer surface is closer to the rear hub abutment surface in the axial direction. The axial distance defined in the axial direction between the axial inner surface and the rear hub abutment surface is equal to or greater than 7 mm.
在根據第四十六態樣之自行車後鏈輪總成之情況下,軸向距離實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-sixth aspect, the axial distance enables a wide range of bicycle rear sprockets.
根據本發明之第四十七態樣,如第四十六態樣之自行車後鏈輪總成經構形以使得該軸向距離等於或大於10mm。 According to a forty-seventh aspect of the present invention, the bicycle rear sprocket assembly of the forty-sixth aspect is configured such that the axial distance is equal to or greater than 10 mm.
在根據第四十七態樣之自行車後鏈輪總成之情況下,軸向距離進一步實現自行車後鏈輪之較寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-seventh aspect, the axial distance further enables a wider range of bicycle rear sprockets.
根據本發明之第四十八態樣,如第四十六態樣或第四十七態樣之自行車後鏈輪總成經構形以使得在該自行車後鏈輪總成安裝至該自行車輪轂總成之一狀態中,相比於該後輪轂鄰接表面,該軸向內表面經定位成更接近該自行車輪轂總成之一軸向中心平面。 According to the forty-eighth aspect of the present invention, the bicycle rear sprocket assembly of the forty-sixth aspect or the forty-seventh aspect is configured such that the bicycle rear sprocket assembly is mounted to the bicycle hub In a state of the assembly, the axially inner surface is positioned closer to an axial center plane of the bicycle hub assembly than the rear hub abutment surface.
在根據第四十八態樣之自行車後鏈輪總成之情況下,軸向距離實現自行車後鏈輪之較寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-eighth aspect, the axial distance enables a wider range of bicycle rear sprockets.
根據本發明之第四十九態樣,如第四十六態樣至第四十八態樣中任 一項之自行車後鏈輪總成經構形以使得該複數個鏈輪之一總數目為12。 According to the forty-ninth aspect of the present invention, any one of the forty-sixth to forty-eighth aspects A bicycle rear sprocket assembly configured such that the total number of ones of the plurality of sprockets is twelve.
在根據第四十九態樣之自行車後鏈輪總成之情況下,複數個鏈輪之總數目實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the forty-ninth aspect, the total number of the plurality of sprockets realizes a wide range of bicycle rear sprockets.
根據本發明之第五十態樣,如第四十六態樣至第四十九態樣中任一項之自行車後鏈輪總成經構形以使得該最大鏈輪之一總齒數等於或大於39。 According to a fiftieth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the forty-sixth aspect to the forty-ninth aspect is configured such that the total number of teeth of one of the largest sprockets is equal to or Greater than 39.
在根據第五十態樣之自行車後鏈輪總成之情況下,最大鏈輪之總齒數實現實現自行車後鏈輪之寬範圍。 In the case of the bicycle rear sprocket assembly according to the fiftieth aspect, the total number of teeth of the largest sprocket realizes a wide range of bicycle rear sprockets.
根據本發明之第五十一態樣,如第四十六態樣至第四十九態樣中任一項之自行車後鏈輪總成經構形以使得該最大鏈輪之一總齒數等於或大於45。 According to the fifty-first aspect of the present invention, the bicycle rear sprocket assembly according to any one of the forty-sixth aspect to the forty-ninth aspect is configured such that the total number of teeth of one of the largest sprockets is equal to or greater than 45.
在根據第五十一態樣之自行車後鏈輪總成之情況下,最大鏈輪之總齒數實現實現自行車後鏈輪之較寬範圍。 In the case of the bicycle rear sprocket assembly according to the fifty-first aspect, the total number of teeth of the largest sprocket achieves a wider range of bicycle rear sprockets.
10:自行車傳動系統 10: Bicycle drive system
12:自行車輪轂總成 12: Bicycle 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:自行車鏈條 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:內部帶螺紋部分 28A: internal threaded part
30:輪轂軸 30: hub shaft
30A:通孔 30A: Through hole
30B:第一軸端 30B: first shaft end
30B1:軸向接觸表面 30B1: axial contact surface
30C:第二軸端 30C: second shaft end
32:鎖定構件 32: Locking member
32A:外部帶螺紋部分 32A: external threaded part
32B:突出部分 32B: Projection
32C:管狀主體部分 32C: Tubular body part
32C1:內周邊表面 32C1: inner peripheral surface
32D:工具嚙合部分 32D: Tool engaging part
32D1:工具嚙合凹槽 32D1: Tool Engagement Groove
34:制動轉子支撐主體 34: Brake rotor support body
36:輪轂主體 36: Hub main body
36A:第一凸緣 36A: First flange
36B:第二凸緣 36B: Second flange
38:棘輪結構/單向聯軸結構 38: ratchet structure / one-way coupling structure
39A:第一軸承 39A: First bearing
39B:第二軸承 39B:Second bearing
40:外部花鍵齒 40: External spline teeth
40A:徑向最外端 40A: Radial outermost end
40G:溝槽 40G: Groove
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: Helical external spline teeth
48:外部花鍵傳動表面 48: External spline drive 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-drive 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 teeth
54:額外基座支撐件 54: Additional Base Supports
56:鏈輪支撐件 56: sprocket support
58:間隔件 58: spacer
58A:第一間隔件 58A: first spacer
58B:第二間隔件 58B: second spacer
58C:第三間隔件 58C: third spacer
58D:第四間隔件 58D: fourth spacer
58E:第五間隔件 58E: fifth spacer
58F:第六間隔件 58F: sixth spacer
58G:第七間隔件 58G: seventh spacer
59A:第一環 59A: First ring
59B:第二環 59B: Second ring
60:輪轂嚙合部分 60: hub engaging 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: 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
64:內部花鍵齒 64: Internal spline teeth
64A:徑向最內端 64A: Radial innermost end
64G:溝槽 64G: Groove
66:內部花鍵傳動表面 66: Internal spline drive 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-drive 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
70:內部花鍵齒 70: Internal spline teeth
72:內部花鍵齒 72: Internal spline teeth
74:內部花鍵齒 74: Internal spline teeth
76:內部花鍵齒 76: Internal spline teeth
78:內部花鍵齒 78: Internal spline teeth
80:後輪轂鄰接表面 80: rear hub abutment surface
214:自行車後鏈輪總成 214: Bicycle rear sprocket assembly
A1:旋轉中心軸線 A1: Rotation center axis
A2:中心軸線 A2: Central axis
AD1:軸向距離 AD1: axial distance
AG11:第一外部花鍵表面角 AG11: First external spline surface angle
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 internal spline surface angle
AG22:第二內部花鍵表面角 AG22: Second internal spline surface angle
AL11:第一軸向長度 AL11: first axial length
AL12:第二軸向長度 AL12: second axial length
AL13:軸向長度 AL13: axial length
BF:自行車框架 BF: Bike Frame
BF1:第一框架 BF1: First frame
BF2:第二框架 BF2: Second Frame
BF11:第一凹槽 BF11: First Groove
BF12:框架接觸表面 BF12: Frame contact surface
BF21:第二凹槽 BF21: Second groove
CL1:圓周齒尖中心線 CL1: Circumferential tooth tip centerline
CL2:圓周齒尖中心線 CL2: Circumferential tooth tip centerline
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
D2:軸向方向 D2: axial direction
D11:傳動旋轉方向 D11: Transmission rotation direction
D12:反向旋轉方向 D12: reverse direction of rotation
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: Extra external spline top diameter
DM21:內部花鍵頂徑 DM21: Internal spline top diameter
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
F1:傳動旋轉力 F1: transmission rotational force
F2:推力 F2: Thrust
F3:推力 F3: Thrust
IV-IV:線 IV-IV: 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 line
MW1:圓周最大寬度 MW1: the maximum width of the circumference
MW2:圓周最大寬度 MW2: the maximum width of the circumference
PA11:第一外部周節角 PA11: First outer pitch angle
PA12:第二外部周節角 PA12: second outer pitch angle
PA21:第一內部周節角 PA21: First internal pitch angle
PA22:第二內部周節角 PA22: second internal pitch angle
RC11:第一參考圓 RC11: First reference circle
RC12:外部花鍵齒根圓 RC12: external spline root circle
RC21:第二參考圓 RC21: Second reference circle
RC22:內部花鍵齒根圓 RC22: Internal spline root circle
RL11:徑向長度 RL11: radial length
RL12:徑向長度 RL12: radial length
RL21:徑向長度 RL21: radial length
RL22:額外徑向長度 RL22: Extra radial length
SP1:鏈輪 SP1: sprocket
SP1A:鏈輪主體 SP1A: Sprocket body
SP1B:鏈輪齒 SP1B: sprocket teeth
SP2:鏈輪 SP2: sprocket
SP2A:鏈輪主體 SP2A: Sprocket body
SP2B:鏈輪齒 SP2B: sprocket teeth
SP3:鏈輪 SP3: Sprocket
SP3A:鏈輪主體 SP3A: Sprocket body
SP3B:鏈輪齒 SP3B: sprocket teeth
SP4:鏈輪 SP4: sprocket
SP4A:鏈輪主體 SP4A: Sprocket body
SP4B:鏈輪齒 SP4B: sprocket teeth
SP5:鏈輪 SP5: sprocket
SP5A:鏈輪主體 SP5A: Sprocket body
SP5B:鏈輪齒 SP5B: sprocket teeth
SP6:鏈輪 SP6: sprocket
SP6A:鏈輪主體 SP6A: Sprocket body
SP6B:鏈輪齒 SP6B: sprocket teeth
SP7:鏈輪 SP7: Sprocket
SP7A:鏈輪主體 SP7A: Sprocket body
SP7B:鏈輪齒 SP7B: sprocket teeth
SP8:鏈輪 SP8: Sprocket
SP8A:鏈輪主體 SP8A: Sprocket body
SP8B:鏈輪齒 SP8B: sprocket teeth
SP9:鏈輪 SP9: Sprocket
SP9A:鏈輪主體 SP9A: Sprocket body
SP9B:鏈輪齒 SP9B: sprocket teeth
SP10:鏈輪 SP10: Sprocket
SP10A:鏈輪主體 SP10A: Sprocket body
SP10B:鏈輪齒 SP10B: sprocket teeth
SP11:鏈輪 SP11: Sprocket
SP11A:鏈輪主體 SP11A: Sprocket body
SP11B:鏈輪齒 SP11B: sprocket teeth
SP12:鏈輪 SP12: Sprocket
SP12A:鏈輪主體 SP12A: Sprocket body
SP12B:鏈輪齒 SP12B: sprocket teeth
SP12C:軸向內表面 SP12C: Axial inner surface
SP12D:軸向外表面 SP12D: axial outer surface
SP202:鏈輪 SP202: sprocket
SP203:鏈輪 SP203: sprocket
SP204:鏈輪 SP204: sprocket
SP205:鏈輪 SP205: sprocket
SP206:鏈輪 SP206: sprocket
SP207:鏈輪 SP207: sprocket
SP208:鏈輪 SP208: sprocket
SP209:鏈輪 SP209: sprocket
SP210:鏈輪 SP210: sprocket
SP211:鏈輪 SP211: sprocket
SP212:鏈輪 SP212: sprocket
SP212B1:移位促進齒 SP212B1: Shift Facilitator Teeth
SP212B2:移位促進齒 SP212B2: Shift Facilitator Teeth
SP212B3:移位促進齒 SP212B3: Shift Facilitator Teeth
SP212R1:促進凹槽 SP212R1: Promotion groove
SP212R2:促進凹槽 SP212R2: Promotion groove
SP212R3:促進凹槽 SP212R3: Promotion groove
SP212X:第一移位促進區域 SP212X: first shift facilitation region
SP212X1:第一移位促進凹槽 SP212X1: First Shift Facilitation Groove
SP212Y:第二移位促進區域 SP212Y: Second translocation-promoting region
SP212Y1:第二移位促進凹槽 SP212Y1: Second Shift Facilitation Groove
TD1:齒尖直徑 TD1: tooth tip diameter
WS:車輪緊固結構 WS: wheel fastening structure
WS1:緊固桿 WS1: fastening rod
XVI-XVI:線 XVI-XVI: Line
XXIII-XXIII:線 XXIII-XXIII: Line
當結合附圖考慮時,參考以下詳細描述,本發明之更完整評價及其許多伴隨優點將易於獲得,同樣變得更好理解,其中:圖1為根據一實施例之自行車傳動系統的示意圖。 A more complete appreciation of the invention and its many attendant advantages will be readily obtained, and likewise better understood, with reference to the following detailed description when considered in conjunction with the accompanying drawings, in which: FIG. 1 is a schematic diagram of a bicycle drivetrain according to one 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 drivetrain illustrated in FIG. 1. FIG.
圖3為圖2中所說明之自行車傳動系統的另一透視圖。 FIG. 3 is another perspective view of the bicycle drivetrain illustrated in FIG. 2 .
圖4為沿圖2之線IV-IV截取之自行車傳動系統的橫截面圖。 4 is a cross-sectional view of the bicycle transmission system taken along line IV-IV of FIG. 2 .
圖5為圖2中所說明之自行車傳動系統之自行車輪轂總成的分解透視圖。 FIG. 5 is an exploded perspective view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2. FIG.
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 drivetrain illustrated in FIG. 4. FIG.
圖7為圖2中所說明之自行車傳動系統之自行車輪轂總成之鏈輪支撐主體的透視圖。 7 is a perspective view of the sprocket support body of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .
圖8為圖2中所說明之自行車傳動系統之自行車輪轂總成之鏈輪支撐主體的另一透視圖。 8 is another perspective view of the sprocket support body of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .
圖9為圖7中所說明之鏈輪支撐主體的側視圖。 FIG. 9 is a side view of the sprocket support body illustrated in FIG. 7 .
圖10為根據修改之自行車輪轂總成之鏈輪支撐主體的側視圖。 Fig. 10 is a side view of a sprocket supporting body of a bicycle hub assembly according to a modification.
圖11為圖7中所說明之鏈輪支撐主體的放大橫截面圖。 FIG. 11 is an enlarged cross-sectional view of the sprocket support body illustrated in FIG. 7 .
圖12為圖7中所說明之鏈輪支撐主體的橫截面圖。 12 is a cross-sectional view of the sprocket support body illustrated in FIG. 7 .
圖13為圖2中所說明之自行車傳動系統之自行車輪轂總成的透視圖。 FIG. 13 is a perspective view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .
圖14為圖2中所說明之自行車傳動系統之自行車輪轂總成的側視圖。 FIG. 14 is a side view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .
圖15為圖2中所說明之自行車傳動系統之自行車輪轂總成的後視圖。 FIG. 15 is a rear view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2. FIG.
圖16為沿圖5之線XVI-XVI截取之自行車輪轂總成的橫截面圖。 Fig. 16 is a cross-sectional view of the bicycle hub assembly taken along line XVI-XVI of Fig. 5 .
圖17為圖2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。 17 is a side view of the bicycle rear sprocket assembly of the bicycle drivetrain illustrated in FIG. 2 .
圖18為圖17中所說明之自行車後鏈輪總成的分解透視圖。 FIG. 18 is an exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖19為圖17中所說明之自行車後鏈輪總成的部分分解透視圖。 FIG. 19 is a partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖20為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 20 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖21為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 21 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖22為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 22 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖23為沿圖17之線XXIII-XXIII截取之自行車後鏈輪總成的透視橫截面圖。 23 is a perspective cross-sectional view of the bicycle rear sprocket assembly taken along line XXIII-XXIII of FIG. 17 .
圖24為圖17中所說明之自行車後鏈輪總成之最小鏈輪的透視圖。 24 is a perspective view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖25為圖17中所說明之自行車後鏈輪總成之最小鏈輪的另一透視 圖。 Figure 25 is another perspective view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in Figure 17 picture.
圖26為圖17中所說明之自行車後鏈輪總成之最小鏈輪的側視圖。 FIG. 26 is a side view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖27為根據修改之最小鏈輪的側視圖。 Fig. 27 is a side view of the smallest sprocket according to the modification.
圖28為圖24中所說明之最小鏈輪的放大截面視圖。 FIG. 28 is an enlarged cross-sectional view of the smallest sprocket illustrated in FIG. 24. FIG.
圖29為圖24中所說明之最小鏈輪的橫截面圖。 FIG. 29 is a cross-sectional view of the smallest sprocket illustrated in FIG. 24. FIG.
圖30為圖2中所說明之自行車傳動系統之鏈輪支撐主體及最小鏈輪的橫截面圖。 30 is a cross-sectional view of the sprocket support body and smallest sprocket of the bicycle drivetrain illustrated in FIG. 2 .
圖31為圖17中所說明之自行車後鏈輪總成的部分分解透視圖。 FIG. 31 is a partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖32為圖17中所說明之自行車後鏈輪總成之鏈輪支撐件的透視圖。 32 is a perspective view of a sprocket support of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.
圖33為根據修改之自行車後鏈輪總成的側視圖。 Fig. 33 is a side view of a bicycle rear sprocket assembly according to a modification.
圖34為圖33中所說明之自行車後鏈輪總成之第一鏈輪的側視圖。 FIG. 34 is a side view of the first sprocket of the bicycle rear sprocket assembly illustrated in FIG. 33. FIG.
圖35為圖33中所說明之自行車後鏈輪總成之第一鏈輪的部分透視圖。 35 is a partial perspective view of the first sprocket of the bicycle rear sprocket assembly illustrated in FIG. 33. FIG.
圖36為圖33中所說明之自行車後鏈輪總成之第一鏈輪的另一側視圖。 Figure 36 is another side view of the first sprocket of the bicycle rear sprocket assembly illustrated in Figure 33.
圖37為圖33中所說明之自行車後鏈輪總成之第一鏈輪的另一部分透視圖。 37 is another partial perspective view of the first sprocket of the bicycle rear sprocket assembly illustrated in FIG. 33. FIG.
圖38為根據修改之鏈輪支撐主體的放大橫截面圖。 Fig. 38 is an enlarged cross-sectional view of a sprocket supporting body according to a modification.
圖39為根據修改之最小鏈輪的放大橫截面圖。 Fig. 39 is an enlarged cross-sectional view of the smallest sprocket according to a modification.
本申請案為2017年5月30日申請之美國專利申請案第15/608,924號之部分接續申請案。該申請案之內容以全文引用之方式併入本文中。 This application is a continuation-in-part of U.S. Patent Application Serial No. 15/608,924 filed on May 30, 2017. The content of this application is incorporated herein by reference in its entirety.
現將參看附圖描述實施例,其中相似參考數字指定在各種圖式中之 對應或相同元件。 Embodiments will now be described with reference to the drawings, wherein like reference numerals are designated between the various drawings Corresponding or identical elements.
首先參考圖1,根據一實施例之自行車傳動系統10包含自行車輪轂總成12及自行車後鏈輪總成14。自行車輪轂總成12緊固至自行車框架BF。自行車後鏈輪總成14安裝於自行車輪轂總成12上。自行車制動轉子16安裝於自行車輪轂總成12上。
Referring first 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傳輸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", "rear", "forward", "backward", "left", "right", "lateral", "upward" and "downward" and any other Similar directional terms refer to those directions determined based on a user (eg, rider) sitting on the saddle (not shown) of the bicycle and facing the handlebars (not shown). Accordingly, these terms, when used to describe the
如圖2及圖3中所見,自行車輪轂總成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之間傳輸傳動旋轉力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 FIGS. 2 and 3 , the
如圖2中所見,自行車輪轂總成12包含鏈輪支撐主體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之間傳輸傳動旋轉力F1。自行車輪轂總成12進一步包含輪轂軸30。鏈輪支撐主體28圍繞旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。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以在平行於旋轉中心軸線A1之軸向方向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
如圖4中所見,自行車輪轂總成12藉由車輪緊固結構WS緊固至自行車框架BF。輪轂軸30具有通孔30A。車輪緊固結構WS之緊固桿WS1延伸穿過輪轂軸30之通孔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包括在所申請之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. 4 , the
如圖4及圖5中所見,自行車輪轂總成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傳輸至制動轉子支撐主體34。
As seen in Figures 4 and 5, the
如圖5中所見,自行車輪轂總成12進一步包含輪轂主體36。輪轂主體36圍繞旋轉中心軸線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為來自輪轂主體36之單獨構件。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可為來自輪轂主體36之單獨構件。
As seen in FIG. 5 , the
輪轂主體36包括第一凸緣36A及第二凸緣36B。第一輪輻(未展示)耦接至第一凸緣36A。第二輪輻(未展示)耦接至第二凸緣36B。第二凸緣36B在軸向方向D2上與第一凸緣36A間隔開。第一凸緣36A在軸向方向D2上設置於鏈輪支撐主體28與第二凸緣36B之間。第二凸緣36B在軸向方向D2上設置於第一凸緣36A與制動轉子支撐主體34之間。
The hub
鎖定構件32包括外部帶螺紋部分32A。鏈輪支撐主體28包括內部帶螺紋部分28A。在鎖定構件32緊固至鏈輪支撐主體28之狀態中,外部帶螺紋部分32A與內部帶螺紋部分28A螺紋嚙合。
The locking
如圖6中所見,鎖定構件32經構形以阻止安裝於自行車輪轂總成12上之至少一個鏈輪相對於自行車後鏈輪總成14之旋轉中心軸線A1軸向移動。如圖5中所見,鎖定構件32包括管狀主體部分32C及突出部分32B。管狀主體部分32C具有中心軸線A2。突出部分32B相對於管狀主體部分32C之中心軸線A2自管狀主體部分32C徑向向外延伸。管狀主體部分32C具有經構形以與自行車輪轂總成12之內部帶螺紋部分28A嚙合的外部帶螺紋部
分32A。
As seen in FIG. 6 , the locking
如圖6中所見,突出部分32B經構形以鄰接至少一個鏈輪。在此實施例中,突出部分32B經構形以鄰接鏈輪SP1。管狀主體部分32C具有等於或小於26mm之第一外徑ED1。第一外徑ED1等於或大於25mm。在此實施例中,第一外徑ED1為25.45mm。然而,第一外徑ED1不限於此實施例及以上範圍。突出部分32B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,第二外徑ED2為31.5mm。然而,第二外徑ED2不限於此實施例及以上範圍。
As seen in FIG. 6 , the protruding
如圖5中所見,鎖定構件32具有工具嚙合部分32D。工具嚙合部分32D設置於管狀主體部分32C之內周邊表面32C1上以與工具嚙合。工具嚙合部分32D包括設置於管狀主體部分32C之內周邊表面32C1上的複數個工具嚙合凹槽32D1。然而,工具嚙合部分32D之結構不限於此實施例。在所說明之實施例中,工具嚙合部分32D可自鎖定構件32省略,或可具有不同於工具嚙合部分32D之另一形狀。
As seen in FIG. 5, the locking
如圖6中所見,自行車輪轂總成12進一步包含棘輪結構38。鏈輪支撐主體28藉由棘輪結構38可操作地耦接至輪轂主體36。棘輪結構38經構形以將鏈輪支撐主體28耦接至輪轂主體36,從而在踩踏期間使鏈輪支撐主體28連同輪轂主體36在傳動旋轉方向D11(圖5)上旋轉。棘輪結構38經構形以允許鏈輪支撐主體28在惰轉期間在反向旋轉方向D12(圖5)上相對於輪轂主體36旋轉。因此,棘輪結構38可解釋為單向聯軸結構38。棘輪結構38包括自行車領域中已知的結構。因此,出於簡潔起見,此處將不作詳細描述。
As seen in FIG. 6 , the
自行車輪轂總成12包括第一軸承39A及第二軸承39B。第一軸承39A
及第二軸承39B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
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7及圖8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)嚙合之複數個外部花鍵齒40。亦即,至少一個外部花鍵齒40包括複數個外部花鍵齒40。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)嚙合之至少九個外部花鍵齒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。
As seen in FIGS. 7 and 8 , 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之突出部分32B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,可自自行車輪轂總成12省略較大直徑部分42。
The
如圖9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之總數目等於或大於25。在此實施例中,至少十個外部花鍵齒40之總數目為26。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. 9 , 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。複數個外部花鍵齒40中之至少兩個外部花鍵齒相對於自行車輪轂總成12之旋轉中心軸線A1以第一外部周節角PA11沿圓周配置。複數個外部花鍵齒40中之至少兩個外部花鍵齒相對於自行車輪轂總成12之旋轉中心軸線A1以第二外部周節角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可實質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係在圓周方向D1上以第一外部周節角PA11配置。外部花鍵齒40中之兩個外部花鍵齒係在圓周方向D1上以第二外部周節角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在10度至20度之範圍內。第一外部周節角PA11在12度至15度之範圍內。第一外部周節角PA11在13度至14度之範圍內。在此實施例中,第一外部周節角PA11為13.3度。然而,第一外部周節角PA11不限於此實施例及以上範圍。 The first outer pitch angle PA11 is in the range of 10 degrees to 20 degrees. The first outer pitch angle PA11 is in the range of 12 degrees to 15 degrees. The first outer pitch angle PA11 is in the range of 13 degrees to 14 degrees. In this embodiment, the first outer pitch angle PA11 is 13.3 degrees. However, the first outer pitch angle PA11 is not limited to this embodiment and the above range.
第二部周節角PA12在5度至30度之範圍內。在此實施例中,第二外部周節角PA12為26度。然而,第二外部周節角PA12不限於此實施例及以上範圍。 The pitch angle PA12 of the second part is in the range of 5 degrees to 30 degrees. In this embodiment, the second outer peripheral pitch angle PA12 is 26 degrees. However, the second outer peripheral pitch angle PA12 is not limited to this embodiment and the above range.
外部花鍵齒40具有實質上彼此相同的形狀。外部花鍵齒40具有實質
上彼此相同的花鍵大小。當沿旋轉中心軸線A1檢視時,外部花鍵齒40具有實質上彼此相同的輪廓。然而,如圖10中所見,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,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中之另一者之輪廓的輪廓。在圖10中,外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之花鍵形狀的花鍵形狀。外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之花鍵大小的花鍵大小。當沿旋轉中心軸線A1檢視時,外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之輪廓的輪廓。
The
如圖11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。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。
As seen in FIG. 11 , 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與外部花鍵非傳動表面50在參考點50R處相交。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。
The plurality of outer splined drive surfaces 48 each include 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。參考點50R設置於徑向最外邊緣50A與徑向最內邊緣50B之間。然而,參考點50R可與徑向最內邊緣50B重合。
The plurality of external splined
圓周最大寬度MW1之總和等於或大於55mm。圓周最大寬度MW1之總和等於或大於60mm。圓周最大寬度MW1之總和等於或大於65mm。在此實施例中,圓周最大寬度MW1之總和為68mm。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 widths MW1 is equal to or greater than 55 mm. The sum of the maximum circumferential widths MW1 is equal to or greater than 60 mm. The sum of the maximum circumferential widths MW1 is equal to or greater than 65 mm. In this embodiment, the sum of the maximum circumferential widths MW1 is 68 mm. However, the sum of the maximum circumferential widths MW1 is not limited to this embodiment and the above range.
如圖12中所見,至少一個外部花鍵齒40具有外部花鍵頂徑DM11。外部花鍵頂徑DM11等於或大於25mm。外部花鍵頂徑DM11等於或大於29mm。外部花鍵頂徑DM11等於或小於30mm。在此實施例中,外部花鍵頂徑DM11為29.6mm。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. 12, 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28mm。外部花鍵底徑DM12等於或大於25mm。外部花鍵底徑DM12等於或大於27mm。在此實施例中,外部花鍵底徑DM12為27.2mm。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在32mm至40mm之範圍內。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11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之總和等於或大於7mm。徑向長度RL11之總和等於或大於10mm。徑向長度RL11之總和等於或大於15mm。在此實施例中,徑向長度RL11之總和為19.5mm。然而,徑向長度RL11之總和不限於此實施例。
As seen in FIG. 11 , the plurality of outer splined drive surfaces 48 each include a radial length RL11 defined from a radially
複數個外部花鍵齒40具有徑向長度RL12。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。徑向長度RL12之總和等於或大於12mm。在此實施例中,徑向長度RL12之總和為31.85mm。然而,徑向長度RL12之總和不限於此實施例。
The plurality of
至少九個外部花鍵齒40中之至少一者相對於圓周齒尖中心線CL1具有不對稱形狀。圓周齒尖中心線CL1為連接旋轉中心軸線A1與外部花鍵齒40之徑向最外端40A之圓周中心點CP1的線。然而,外部花鍵齒40中之至少一者可相對於圓周齒尖中心線CL1具有對稱形狀。至少九個外部花鍵齒40中之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 nine
外部花鍵傳動表面48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界定於相鄰第一徑向線L11(參見例如圖9)之間。
The outer
外部花鍵非傳動表面50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。
External splined
在此實施例中,第二外部花鍵表面角AG12不同於第一外部花鍵表面角AG11。第一外部花鍵表面角AG11小於第二外部花鍵表面角AG12。然而,第一外部花鍵表面角AG11可等於或大於第二外部花鍵表面角AG12。 In this embodiment, the second external spline surface angle AG12 is different from the first external spline surface angle AG11. The first external spline surface angle AG11 is smaller than the second external spline surface angle AG12. However, the first external spline surface angle AG11 may be equal to or greater than the second external spline surface angle AG12.
第一外部花鍵表面角AG11在0度至10度之範圍內。第二外部花鍵表面角AG12在0度至60度之範圍內。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45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 external spline surface angle AG11 is in the range of 0° to 10°. The second external spline surface angle AG12 is in the range of 0 degrees to 60 degrees. In this embodiment, the first external spline surface angle AG11 is 5 degrees. The second external spline surface angle AG12 is 45 degrees. However, the first external spline surface angle AG11 and the second external spline surface angle AG12 are not limited to this embodiment and the above range.
如圖13及圖14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4)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 FIGS. 13 and 14 , the brake
如圖14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15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實質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 14, at least one additional
如圖16中所見,輪轂軸30包括用以接觸自行車框架BF之軸向接觸表面30B1。在此實施例中,軸向接觸表面30B1可與自行車框架BF之第一框架BF1接觸。第一框架BF1包括框架接觸表面BF12。在自行車輪轂總成12藉由車輪緊固結構WS緊固至自行車框架BF之狀態中,軸向接觸表面30B1與框架接觸表面BF12接觸。
As seen in FIG. 16, the
第一軸向長度AL11係相對於旋轉中心軸線A1在軸向方向D2上自軸向接觸表面30B1至較大直徑部分42界定。第一軸向長度AL11在35mm至41mm之範圍內。第一軸向長度AL11可等於或大於39mm。第一軸向長度AL11亦可在35mm至37mm之範圍內。在此實施例中,第一軸向長度AL11為36.2mm。然而,第一軸向長度AL11不限於此實施例及以上範圍。
The first axial length AL11 is defined from the axial contact surface 30B1 to the
較大直徑部分42具有在軸向方向D2上離軸向接觸表面30B1最遠的軸向端42A。第二軸向長度AL12係在軸向方向D2上自軸向接觸表面30B1至軸向端42A界定。第二軸向長度AL12在38mm至47mm之範圍內。第二軸向長度AL12可在44mm至45mm之範圍內。第二軸向長度AL12亦可在40mm至41mm之範圍內。在此實施例中,第二軸向長度AL12為40.75mm。然而,第二軸向長度AL12不限於此實施例及以上範圍。
The
較大直徑部分42之軸向長度AL13在3mm至6mm之範圍內。在此實施例中,軸向長度AL13為4.55mm。然而,軸向長度AL13不限於此實施例及以上範圍。
The axial length AL13 of the
如圖17中所見,自行車後鏈輪總成14包含至少一個鏈輪。至少一個鏈輪包括複數個鏈輪。至少一個鏈輪包括至少十個鏈輪。至少一個鏈輪包括至少十一個鏈輪。至少一個鏈輪包括至少十二個鏈輪。複數個鏈輪包括最大鏈輪SP12。最大鏈輪SP12具有齒尖直徑TD1。複數個鏈輪亦包括最小鏈輪SP1。最小鏈輪SP1亦可被稱作鏈輪SP1。最大鏈輪SP12亦可被稱作鏈輪SP12。在此實施例中,至少一個鏈輪進一步包括鏈輪SP2至SP11。鏈輪SP1對應於高速齒輪。鏈輪SP12對應於低速齒輪。在此實施例中,複數個鏈輪之總數目為12。然而,自行車後鏈輪總成14之鏈輪之總數目不限於此實施例。
As seen in FIG. 17, the bicycle
最小鏈輪SP1包括至少一個鏈輪齒SP1B。最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目等於或小於10。在此實施例中,最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目為10。然而,最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目不限於此實施例及以上範圍。 The smallest sprocket SP1 includes at least one sprocket tooth SP1B. The total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is equal to or less than ten. In this embodiment, the total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is ten. However, the total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is not limited to this embodiment and the above scope.
最大鏈輪SP12包括至少一個鏈輪齒SP12B。最大鏈輪SP12之總齒數等於或大於39。最大鏈輪SP12之總齒數等於或大於45。最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目等於或大於46。最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目等於或大於50。在此實施例中,最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目為51。然而,最大鏈輪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。齒尖直徑TD1為由鏈輪齒SP12B之齒尖界定之圓的直徑。 The largest sprocket SP12 includes at least one sprocket tooth SP12B. The total number of teeth of the largest sprocket SP12 is equal to or greater than 39. The total number of teeth of the largest sprocket SP12 is equal to or greater than 45. The total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is equal to or greater than 46. The total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is equal to or greater than 50. In this embodiment, the total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is fifty-one. However, the total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is not limited to this embodiment and the above scope. The tooth tip diameter TD1 is the diameter of the circle defined by the tooth tips of the sprocket teeth SP12B.
鏈輪SP2包括至少一個鏈輪齒SP2B。鏈輪SP3包括至少一個鏈輪齒SP3B。鏈輪SP4包括至少一個鏈輪齒SP4B。鏈輪SP5包括至少一個鏈輪齒SP5B。鏈輪SP6包括至少一個鏈輪齒SP6B。鏈輪SP7包括至少一個鏈輪齒SP7B。鏈輪SP8包括至少一個鏈輪齒SP8B。鏈輪SP9包括至少一個鏈輪齒SP9B。鏈輪SP10包括至少一個鏈輪齒SP10B。鏈輪SP11包括至少一個鏈輪齒SP11B。 The sprocket SP2 includes at least one sprocket tooth SP2B. The sprocket SP3 includes at least one sprocket tooth SP3B. The sprocket SP4 includes at least one sprocket tooth SP4B. The sprocket SP5 includes at least one sprocket tooth SP5B. The sprocket SP6 includes at least one sprocket tooth SP6B. The sprocket SP7 includes at least one sprocket tooth SP7B. The sprocket SP8 includes at least one sprocket tooth SP8B. The sprocket SP9 includes at least one sprocket tooth SP9B. The sprocket SP10 includes at least one sprocket tooth SP10B. The sprocket SP11 includes at least one sprocket tooth SP11B.
至少一個鏈輪齒SP2B之總數目為12。至少一個鏈輪齒SP3B之總數目為14。至少一個鏈輪齒SP4B之總數目為16。至少一個鏈輪齒SP5B之總數目為18。至少一個鏈輪齒SP6B之總數目為21。至少一個鏈輪齒SP7B之總數目為24。至少一個鏈輪齒SP8B之總數目為28。至少一個鏈輪齒SP9B之總數目為33。至少一個鏈輪齒SP10B之總數目為39。至少一個鏈輪齒SP11B之總數目為45。至少一個鏈輪具有等於或大於15之總齒數。舉例而言,鏈輪SP4之總齒數為16。鏈輪SP5之總齒數為18。鏈輪SP6之總齒數為21。鏈輪SP7之總齒數為24。鏈輪SP8之總齒數為28。鏈輪SP9之總齒數為33。鏈輪SP10之總齒數為39。鏈輪SP11之總齒數為45。鏈輪SP12之總齒數為51。鏈輪SP2至SP11中之每一者之鏈輪齒的總數目不限於此實施例。鏈輪SP1至SP12中之至少一者可包括等於或大於15之總齒數。 The total number of at least one sprocket SP2B is twelve. The total number of at least one sprocket SP3B is fourteen. The total number of at least one sprocket SP4B is sixteen. The total number of at least one sprocket SP5B is eighteen. The total number of at least one sprocket SP6B is twenty-one. The total number of at least one sprocket SP7B is twenty-four. The total number of at least one sprocket SP8B is twenty-eight. The total number of at least one sprocket SP9B is thirty-three. The total number of at least one sprocket SP10B is thirty-nine. The total number of at least one sprocket SP11B is 45. At least one sprocket has a total number of teeth equal to or greater than 15. For example, the sprocket SP4 has 16 teeth in total. The total number of teeth of sprocket SP5 is 18. The total number of teeth of sprocket SP6 is 21. The total number of teeth of sprocket SP7 is 24. The total number of teeth of sprocket SP8 is 28. The total number of teeth of sprocket SP9 is 33. The total number of teeth of sprocket SP10 is 39. The total number of teeth of sprocket SP11 is 45. The total number of teeth of sprocket SP12 is 51. The total number of sprocket teeth of each of the sprockets SP2 to SP11 is not limited to this embodiment. At least one of the sprockets SP1 to SP12 may include a total number of teeth equal to or greater than 15.
如圖18中所見,鏈輪SP1至SP12為彼此分開的構件。然而,鏈輪SP1至SP12中之至少一者可至少部分地與鏈輪SP1至SP12中之另一者一體地提供。自行車後鏈輪總成14進一步包含鏈輪支撐件56、複數個間隔件58、第一環59A及第二環59B。在所說明之實施例中,複數個鏈輪SP1至SP12附接至鏈輪支撐件56。舉例而言,複數個鏈輪SP1至SP12藉由黏附劑附接至鏈輪支撐件56。
As seen in FIG. 18, the sprockets SP1 to SP12 are separate members from each other. However, at least one of the sprockets SP1 to SP12 may be provided at least partially integrally with the other of the sprockets SP1 to SP12. The bicycle
如圖19中所見,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自鏈輪主體SP1A徑向向外延伸。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自鏈輪主體SP2A徑向向外延伸。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自鏈輪主體SP3A徑向向外延伸。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自鏈輪主體SP4A徑向向外延伸。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自鏈輪主體SP5A徑向向外延伸。第一環59A設置於鏈輪SP3與鏈輪SP4之間。第二環59B設置於鏈輪SP4與鏈輪SP5之間。
As seen in FIG. 19 , the sprocket SP1 includes a sprocket body SP1A and a plurality of sprocket teeth SP1B. A plurality of sprocket teeth SP1B extend radially outward from the sprocket body SP1A. The sprocket SP2 includes a sprocket main body SP2A and a plurality of sprocket teeth SP2B. A plurality of sprocket teeth SP2B extend radially outward from the sprocket body SP2A. The sprocket SP3 includes a sprocket main body SP3A and a plurality of sprocket teeth SP3B. A plurality of sprocket teeth SP3B extend radially outward from the sprocket body SP3A. The sprocket SP4 includes a sprocket main body SP4A and a plurality of sprocket teeth SP4B. A plurality of sprocket teeth SP4B extend radially outward from the sprocket body SP4A. The sprocket SP5 includes a sprocket main body SP5A and a plurality of sprocket teeth SP5B. A plurality of sprocket teeth SP5B extend radially outward from the sprocket body SP5A. The
如圖20中所見,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自鏈輪主體SP6A徑向向外延伸。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自鏈輪主體SP7A徑向向外延伸。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自鏈輪主體SP8A徑向向外延伸。 As seen in FIG. 20, the sprocket SP6 includes a sprocket body SP6A and a plurality of sprocket teeth SP6B. A plurality of sprocket teeth SP6B extend radially outward from the sprocket body SP6A. The sprocket SP7 includes a sprocket main body SP7A and a plurality of sprocket teeth SP7B. A plurality of sprocket teeth SP7B extend radially outward from the sprocket body SP7A. The sprocket SP8 includes a sprocket main body SP8A and a plurality of sprocket teeth SP8B. A plurality of sprocket teeth SP8B extend radially outward from the sprocket body SP8A.
如圖21中所見,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自鏈輪主體SP9A徑向向外延伸。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自鏈輪主體SP10A徑向向外延伸。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自鏈輪主體SP11A徑向向外延伸。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自鏈輪主體SP12A徑向向外延伸。 As seen in FIG. 21 , the sprocket SP9 includes a sprocket body SP9A and a plurality of sprocket teeth SP9B. A plurality of sprocket teeth SP9B extend radially outward from the sprocket body SP9A. The sprocket SP10 includes a sprocket main body SP10A and a plurality of sprocket teeth SP10B. A plurality of sprocket teeth SP10B extend radially outward from the sprocket body SP10A. The sprocket SP11 includes a sprocket main body SP11A and a plurality of sprocket teeth SP11B. A plurality of sprocket teeth SP11B extend radially outward from the sprocket main body SP11A. The sprocket SP12 includes a sprocket main body SP12A and a plurality of sprocket teeth SP12B. A plurality of sprocket teeth SP12B extend radially outward from the sprocket body SP12A.
如圖22中所見,鏈輪支撐件56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58包括複數個第一間隔件58A、複數個第二間隔件58B、複數個第三間隔件58C、複數個第四間隔件58D、複數個第五間隔件58E、複數個第六間隔件58F及複數個第七間隔件58G。
As seen in FIG. 22 , the
如圖23中所見,第一間隔件58A設置於鏈輪SP5與鏈輪SP6之間。第二間隔件58B設置於鏈輪SP6與鏈輪SP7之間。第三間隔件58C設置於鏈輪SP7與鏈輪SP8之間。第四間隔件58D設置於鏈輪SP8與鏈輪SP9之間。第五間隔件58E設置於鏈輪SP9與鏈輪SP10之間。第六間隔件58F設置於鏈輪SP10與鏈輪SP11之間。第七間隔件58G設置於鏈輪SP11與鏈輪SP12之間。
As seen in FIG. 23 , the
鏈輪SP6及第一間隔件58A藉由諸如黏附劑之黏合結構附接至第一附接部分62A。鏈輪SP7及第二間隔件58B藉由諸如黏附劑之黏合結構附接至第二附接部分62B。鏈輪SP8及第三間隔件58C藉由諸如黏附劑之黏合結構附接至第三附接部分62C。鏈輪SP9及第四間隔件58D藉由諸如黏附劑之黏合結構附接至第四附接部分62D。鏈輪SP10及第五間隔件58E藉由諸如黏附劑之黏合結構附接至第五附接部分62E。鏈輪SP11及第六間隔件58F藉由諸如黏附劑之黏合結構附接至第六附接部分62F。鏈輪SP12及第七間隔件58G藉由諸如黏附劑之黏合結構附接至第七附接部分62G。鏈輪SP5及第二環59B藉由諸如黏附劑之黏合結構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59A及第二環59B在軸向方向D2上固持於較大直徑部分42與鎖定構件32之突出部分32B之間。
The 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。鏈輪支撐件56、第一間隔件58A至第七間隔件58G、第一環
59A及第二環59B中之每一者由諸如樹脂材料之非金屬材料製成。鏈輪支撐件56由包括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。鏈輪支撐件56、第一間隔件58A至第七間隔件58G、第一環59A及第二環59B中之至少一者可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.
至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之至少一個內部花鍵齒。如圖24及圖25中所見,至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之至少十個內部花鍵齒。至少一個內部花鍵齒包括複數個內部花鍵齒。因此,至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之複數個內部花鍵齒。在此實施例中,鏈輪SP1包括經構形以與自行車輪轂總成12嚙合之至少十個內部花鍵齒64。在此實施例中,鏈輪SP1包括經構形以與自行車輪轂總成12之鏈輪支撐主體28之外部花鍵齒40嚙合的內部花鍵齒64。鏈輪主體SP1A具有環狀形狀。內部花鍵齒64自鏈輪主體SP1A徑向向內延伸。
At least one sprocket includes at least one internal spline tooth configured to mesh with the
如圖26中所見,至少十個內部花鍵齒64之總數目等於或大於20。至少十個內部花鍵齒64之總數目等於或大於25。在此實施例中,內部花鍵齒64之總數目為26。然而,內部花鍵齒64之總數目不限於此實施例及以上範圍。
As seen in FIG. 26 , the total number of at least ten
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。複數個內部花鍵齒64中之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以第一內部周節角PA21沿圓周配置。複數個內部花鍵齒64中之至少兩個內部花鍵齒相對於旋轉中心軸線A1以第二內部周節角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可實質上等於第一內部周節角PA21。
At least ten
在此實施例中,內部花鍵齒64係在圓周方向D1上以第一內部周節角PA21沿圓周配置。內部花鍵齒64中之兩個內部花鍵齒係在圓周方向D1上以第二內部周節角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在10度至20度之範圍內。第一內部周節角PA21在12度至15度之範圍內。第一內部周節角PA21在13度至14度之範圍內。在此實施例中,第一內部周節角PA21為13.3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 is in the range of 10 degrees to 20 degrees. The first inner circumferential pitch angle PA21 is in the range of 12 degrees to 15 degrees. The first inner circumferential pitch angle PA21 is in the range of 13 degrees to 14 degrees. In this embodiment, the first inner circumferential pitch angle PA21 is 13.3 degrees. However, the first internal pitch angle PA21 is not limited to this embodiment and the above range.
第二內部周節角PA22在5度至30度之範圍內。在此實施例中,第二內部周節角PA22為26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 is in the range of 5 degrees to 30 degrees. In this embodiment, the second inner circumferential pitch angle PA22 is 26 degrees. However, the second inner circumferential pitch angle PA22 is not limited to this embodiment and the above range.
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。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27中所見,內部花鍵齒64可具有彼此相同的形狀。內部花鍵齒64可具有彼此相同的大小。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28中所見,至少一個內部花鍵齒64包含內部花鍵傳動表面66及內部花鍵非傳動表面68。至少一個內部花鍵齒64包括複數個內部花鍵齒64。複數個內部花鍵齒64包括用以在踩踏期間接收來自自行車輪轂總成
12(圖6)之傳動旋轉力F1的複數個內部花鍵傳動表面66。複數個內部花鍵齒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傳輸至鏈輪支撐主體28。內部花鍵傳動表面66面向傳動旋轉方向D11。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傳輸至鏈輪支撐主體28。
As seen in FIG. 28 , at least one
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
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。內部花鍵傳動表面66自徑向最外邊緣66A延伸至徑向最內邊緣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與內部花鍵非傳動表面68在參考點68R處相交。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 inner
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 splined
圓周最大寬度MW2之總和等於或大於40mm。圓周最大寬度MW2之總和等於或大於45mm。圓周最大寬度MW2之總和等於或大於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 circumferential widths MW2 is equal to or greater than 40 mm. The sum of the maximum circumferential widths MW2 is equal to or greater than 45 mm. The sum of the maximum circumferential widths MW2 is equal to or greater than 50 mm. In this embodiment, the sum of the circumferential maximum widths MW2 is 50.8 mm. However, the sum of the circumferential maximum widths MW2 is not limited to this embodiment.
如圖29中所見,至少一個內部花鍵齒64具有內部花鍵頂徑DM21。至少一個內部花鍵齒64具有內部花鍵齒根圓RC22,內部花鍵齒根圓RC22具有內部花鍵頂徑DM21。然而,內部花鍵齒根圓RC22可具有不同於內部花鍵頂徑DM21之另一直徑。內部花鍵頂徑DM21等於或小於30mm。內部花鍵頂徑DM21等於或大於25mm。內部花鍵頂徑DM21等於或大於29mm。在此實施例中,內部花鍵頂徑DM21為29.6mm。然而,內部花鍵頂徑DM21不限於此實施例及以上範圍。在此實施例中,內部花鍵頂徑DM21對齒尖直徑TD1之比率在0.1至0.2之範圍內。最大鏈輪SP12之齒尖直徑TD1(圖1)在183.7mm至207.9mm之範圍內。內部花鍵頂徑DM21對齒尖直徑TD1之比率在0.14至0.17之範圍內。然而,內部花鍵頂徑DM21對齒尖直徑TD1之比率不限於以上範圍。
As seen in Figure 29, at least one
至少一個內部花鍵齒64具有等於或小於28mm之內部花鍵底徑DM22。內部花鍵底徑DM22等於或大於25mm。內部花鍵底徑DM22等於或大於27mm。在此實施例中,內部花鍵底徑DM22為27.7mm。然而,內部花鍵底徑DM22不限於此實施例及以上範圍。
At least one
如圖28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之總和為19.5mm。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. 28, the plurality of inner splined drive surfaces 66 includes 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27.95mm。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
內部花鍵齒64中之至少一者相對於圓周齒尖中心線CL2具有不對稱形狀。圓周齒尖中心線CL2為連接旋轉中心軸線A1及內部花鍵齒64之徑向最內端64A之圓周中心點CP2的線。然而,內部花鍵齒64中之至少一者可相對於圓周齒尖中心線CL2具有對稱形狀。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
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(參見例如圖26)之間。
The inner
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 internal splined
在此實施例中,第二內部花鍵表面角AG22不同於第一內部花鍵表面角AG21。第一內部花鍵表面角AG21小於第二內部花鍵表面角AG22。然而第一內部花鍵表面角AG21可等於或大於第二內部花鍵表面角AG22。 In this embodiment, the second internal spline surface angle AG22 is different from the first internal spline surface angle AG21. The first internal spline surface angle AG21 is smaller than the second internal spline surface angle AG22. However, the first internal spline surface angle AG21 may be equal to or greater than the second internal spline surface angle AG22.
第一內部花鍵表面角AG21在0度至10度之範圍內。第二內部花鍵表面角AG22在0度至60度之範圍內。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45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 internal spline surface angle AG21 is in the range of 0° to 10°. The second internal spline surface angle AG22 is in the range of 0 degrees to 60 degrees. In this example, the first internal spline surface angle AG21 is 5 degrees. The second internal spline surface angle AG22 is 45 degrees. However, the first internal spline surface angle AG21 and the second internal spline surface angle AG22 are not limited to this embodiment and the above range.
如圖30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自鏈輪SP1傳輸至鏈輪支撐主體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自鏈輪SP1傳輸至鏈輪支撐主體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. 30 , the
如圖31中所見,鏈輪SP2包括複數個內部花鍵齒70。鏈輪SP3包括複數個內部花鍵齒72。鏈輪SP4包括複數個內部花鍵齒74。第一環59A包括複數個內部花鍵齒76。如圖32中所見,鏈輪支撐件56之輪轂嚙合部分60包括複數個內部花鍵齒78。複數個內部花鍵齒70具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒72具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒74具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒76具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒78具有與複數個內部花鍵齒64之結構實質上相同的結構。因此,出於簡潔起見,此處將不作詳細描述。
As seen in FIG. 31 , sprocket SP2 includes a plurality of
如圖6中所見,自行車後鏈輪總成14進一步包含後輪轂鄰接表面80。後輪轂鄰接表面80經構形以在自行車後鏈輪總成14安裝至自行車輪轂總成12之狀態中在相對於自行車後鏈輪總成14之旋轉中心軸線A1的軸向方向D2上鄰接自行車輪轂總成12。在此實施例中,後輪轂鄰接表面80在軸向方向D2上鄰接鏈輪支撐主體28之較大直徑部分42。後輪轂鄰接表面80設置於鏈輪支撐件56之輪轂嚙合部分60上。然而,後輪轂鄰接表面80之
位置不限於此實施例。
As seen in FIG. 6 , the bicycle
最大鏈輪SP12具有軸向內表面SP12C及在相對於自行車後鏈輪總成14之旋轉中心軸線A1的軸向方向D2上設置於軸向內表面SP12C之反向側上的軸向外表面SP12D。相比於軸向內表面SP12C,軸向外表面SP12D在軸向方向D2上更接近後輪轂鄰接表面80。
The largest sprocket SP12 has an axially inner surface SP12C and an axially outer surface SP12D disposed on the opposite side of the axially inner surface SP12C in the axial direction D2 with respect to the rotation center axis A1 of the bicycle
如圖15中所見,自行車輪轂總成12具有在軸向方向D2上將自行車輪轂總成12二等分之軸向中心平面CPL。自行車輪轂總成12之軸向中心平面CPL垂直於旋轉中心軸線A1。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,相比於後輪轂鄰接表面80,軸向內表面SP12C經定位成更接近自行車後輪轂總成12之軸向中心平面CPL。在軸向方向D2上界定於軸向內表面SP12C與後輪轂鄰接表面80之間的軸向距離AD1等於或大於7mm。軸向距離AD1等於或大於10mm。然而,軸向距離AD1不限於以上範圍。
As seen in FIG. 15, the
如圖9及圖10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,輪轂指示符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。此外,輪轂指示器28I可為例如藉由諸如黏附劑之黏合結構附接至鏈輪支撐主體28的單獨構件。輪轂指示器28I之位置不限於此實施例。
As seen in FIGS. 9 and 10 , the
如圖26及圖27中所見,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。當沿旋轉中心軸線A1檢視時,鏈輪指示器SP1I設置於第二內部周節角PA22之區域中。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。此外,
鏈輪指示器SP1I可為例如藉由諸如黏附劑之黏合結構附接至鏈輪SP1的單獨構件。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件56。
As seen in FIGS. 26 and 27 , the sprocket SP1 includes a sprocket indicator SP1I provided at an axial end of the sprocket main body SP1A. The sprocket indicator SP1I is arranged in the region of the second inner peripheral pitch angle PA22 when viewed along the rotation center axis A1. In this embodiment, the sprocket indicator SP1I includes dots. However, the sprocket indicator SP1I may include other shapes, such as triangles and lines. also,
The sprocket indicator SP1I may be a separate component attached to the sprocket SP1, eg, by an adhesive structure such as an adhesive. The position of the sprocket indicator SP1I is not limited to this embodiment. Sprocket indicator SP1I may be provided to any of the other sprockets SP2-SP12. A sprocket indicator SP1I may also be provided to the
圖33說明根據自行車後鏈輪總成14之修改的自行車後鏈輪總成214。如圖33中所見,自行車後鏈輪總成214包含鏈輪SP1及複數個鏈輪SP202至SP212。鏈輪SP202至SP212具有與鏈輪SP2至SP12之結構實質上相同的結構。如圖33及圖34中所見,舉例而言,鏈輪SP212包括鏈輪主體SP12A及複數個鏈輪齒SP12B。
FIG. 33 illustrates a bicycle
鏈輪SP202至SP212中之一者亦可被稱作第一鏈輪。鄰近於第一鏈輪之另一鏈輪亦可被稱作第二鏈輪。亦即,自行車後鏈輪總成214之至少一個鏈輪包括第一鏈輪及第二鏈輪。第一鏈輪具有第一總齒數。第二鏈輪具有小於第一總齒數之第二總齒數。第二鏈輪在軸向方向D2上鄰近於第一鏈輪,且第一鏈輪與第二鏈輪之間無另一鏈輪。
One of the sprockets SP202 to SP212 may also be referred to as a first sprocket. Another sprocket adjacent to the first sprocket may also be referred to as a second sprocket. That is, at least one sprocket of the bicycle
如圖33中所見,舉例而言,第一鏈輪SP212具有為51之第一總齒數。第二鏈輪SP211具有為45之第二總齒數。鏈輪SP212及SP211亦可被稱作第一鏈輪SP212及第二鏈輪SP211。鏈輪SP211及SP210亦可被稱作第一鏈輪SP211及第二鏈輪SP210。鏈輪SP210及SP209亦可被稱作第一鏈輪SP210及第二鏈輪SP209。鏈輪SP209及SP208亦可被稱作第一鏈輪SP209及第二鏈輪SP208。鏈輪SP208及SP207亦可被稱作第一鏈輪SP208及第二鏈輪SP207。鏈輪SP207及SP206亦可被稱作第一鏈輪SP207及第二鏈輪SP206。鏈輪SP206及SP205亦可被稱作第一鏈輪SP206及第二鏈輪 SP205。鏈輪SP205及SP204亦可被稱作第一鏈輪SP205及第二鏈輪SP204。鏈輪SP204及SP203亦可被稱作第一鏈輪SP204及第二鏈輪SP203。鏈輪SP203及SP202亦可被稱作第一鏈輪SP203及第二鏈輪SP202。鏈輪SP202及SP1亦可被稱作第一鏈輪SP202及第二鏈輪SP1。 As seen in FIG. 33 , for example, the first sprocket SP212 has a first total number of teeth of 51 . The second sprocket SP211 has a second total number of teeth of 45. The sprockets SP212 and SP211 may also be referred to as a first sprocket SP212 and a second sprocket SP211. The sprockets SP211 and SP210 may also be referred to as a first sprocket SP211 and a second sprocket SP210. The sprockets SP210 and SP209 may also be referred to as a first sprocket SP210 and a second sprocket SP209. The sprockets SP209 and SP208 may also be referred to as a first sprocket SP209 and a second sprocket SP208. The sprockets SP208 and SP207 may also be referred to as a first sprocket SP208 and a second sprocket SP207. The sprockets SP207 and SP206 may also be referred to as a first sprocket SP207 and a second sprocket SP206. The sprockets SP206 and SP205 may also be referred to as the first sprocket SP206 and the second sprocket SP205. The sprockets SP205 and SP204 may also be referred to as a first sprocket SP205 and a second sprocket SP204. The sprockets SP204 and SP203 may also be referred to as a first sprocket SP204 and a second sprocket SP203. The sprockets SP203 and SP202 may also be referred to as a first sprocket SP203 and a second sprocket SP202. The sprockets SP202 and SP1 may also be referred to as the first sprocket SP202 and the second sprocket SP1.
如圖34中所見,舉例而言,第一鏈輪SP212包括至少一個第一移位促進區域SP212X以促進自行車鏈條20自第二鏈輪SP211移位至第一鏈輪SP212之第一移位操作。第一鏈輪SP212包括至少一個第二移位促進區域SP212Y以促進自行車鏈條20自第一鏈輪SP212移位至第二鏈輪SP211之第二移位操作。在此實施例中,第一鏈輪SP212包括複數個第一移位促進區域SP212X以促進自行車鏈條20自第二鏈輪SP211移位至第一鏈輪SP212之第一移位操作。第一鏈輪SP212包括複數個第二移位促進區域SP212Y以促進自行車鏈條20自第一鏈輪SP212移位該第二鏈輪SP211之第二移位操作。
As seen in FIG. 34 , for example, the first sprocket SP212 includes at least one first shift promoting region SP212X to facilitate the first shifting operation of the
第一鏈輪SP212包括複數個第一移位促進凹槽SP212X1及複數個第二移位促進凹槽SP212Y1。第一移位促進凹槽SP212X1設置於第一移位促進區域SP212X中。第二移位促進凹槽SP212Y1設置於第二移位促進區域SP212Y中。 The first sprocket SP212 includes a plurality of first displacement promoting grooves SP212X1 and a plurality of second displacement promoting grooves SP212Y1. The first displacement promoting groove SP212X1 is disposed in the first displacement promoting region SP212X. The second displacement promoting groove SP212Y1 is disposed in the second displacement promoting region SP212Y.
如圖35中所見,第一移位促進凹槽SP212X1設置於軸向外表面SP12D上以減少第一移位操作中第一鏈輪SP212與自行車鏈條20(圖33)之間的干擾。第二移位促進凹槽SP212Y1設置於軸向外表面SP12D上以減少第二移位操作中第一鏈輪SP212與自行車鏈條20(圖33)之間的干擾。第二移位促進凹槽SP212Y1在圓周方向D1上與第一移位促進凹槽SP212X1間隔開。 As seen in FIG. 35 , the first shift promoting groove SP212X1 is provided on the axially outer surface SP12D to reduce interference between the first sprocket SP212 and the bicycle chain 20 ( FIG. 33 ) in the first shifting operation. The second displacement promoting groove SP212Y1 is provided on the axially outer surface SP12D to reduce interference between the first sprocket SP212 and the bicycle chain 20 ( FIG. 33 ) in the second displacement operation. The second displacement promoting groove SP212Y1 is spaced apart from the first displacement promoting groove SP212X1 in the circumferential direction D1.
如圖36中所見,第一鏈輪SP212之複數個鏈輪齒SP12B包括複數個移 位促進齒SP212B1至SP212B3。移位促進齒SP212B1至SP212B3設置於第二移位促進區域SP212Y中。如圖34中所見,第二移位促進區域SP212Y在圓周方向D1上由第二移位促進凹槽SP212Y1及移位促進齒SP212B3界定。 As seen in FIG. 36, the plurality of sprocket teeth SP12B of the first sprocket SP212 includes a plurality of Bits promote teeth SP212B1 to SP212B3. The displacement promoting teeth SP212B1 to SP212B3 are disposed in the second displacement promoting region SP212Y. As seen in FIG. 34 , the second displacement promoting region SP212Y is defined in the circumferential direction D1 by the second displacement promoting groove SP212Y1 and the displacement promoting tooth SP212B3 .
如圖37中所見,移位促進齒SP212B1包括促進凹槽SP212R1。移位促進齒SP212B2包括促進凹槽SP212R2。移位促進齒SP212B3包括促進凹槽SP212R3。促進凹槽SP212R1設置於軸向內表面SP12C上以促進在第二移位操作中使自行車鏈條20與第一鏈輪SP212脫軌。促進凹槽SP212R2設置於軸向內表面SP12C上以促進在第二移位操作中使自行車鏈條20與第一鏈輪SP212脫軌。促進凹槽SP212R3設置於軸向內表面SP12C上以促進在第二移位操作中使自行車鏈條20與第一鏈輪SP212脫軌。
As seen in FIG. 37, the displacement promoting tooth SP212B1 includes a promoting groove SP212R1. The displacement promoting tooth SP212B2 includes a promoting groove SP212R2. The displacement promoting tooth SP212B3 includes a promoting groove SP212R3. A facilitating groove SP212R1 is provided on the axially inner surface SP12C to facilitate derailing the
鏈輪SP202至SP211中之每一者的第一移位促進區域及第二移位促進區域分別具有與第一鏈輪SP212之第一移位促進區域SP212X及第二移位促進區域SP212Y之結構實質上相同的結構。出於簡潔起見,此處將不對其進行詳細描述。如本文中所使用,術語「移位促進區域」意欲為經有意設計以促進自行車鏈條在區域中自一鏈輪至另一軸向鄰近鏈輪之移位操作的區域。 The first displacement promoting region and the second displacement promoting region of each of the sprockets SP202 to SP211 respectively have the same structure as the first displacement promoting region SP212X and the second displacement promoting region SP212Y of the first sprocket SP212 substantially the same structure. For the sake of brevity, it will not be described in detail here. As used herein, the term "shift-promoting region" is intended to be a region that is intentionally designed to facilitate the shifting operation of a bicycle chain in a region from one sprocket to another axially adjacent sprocket.
如圖38中所見,在上述實施例中,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之間的溝槽40G。溝槽40G減少自行車輪轂總成12之重量。
As seen in FIG. 38 , in the above-described embodiment, the
如圖39中所見,在上述實施例中,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之間的溝槽64G。溝槽64G減少自行車後鏈輪總成14之重量。
As seen in FIG. 39 , in the above-described embodiments, the
如本文中所使用之術語「包含」及其派生詞意欲為指定所陳述特徵、元件、組件、群組、整數及/或步驟之存在但不排除其他未陳述特徵、元件、組件、群組、整數及/或步驟之存在的開放術語。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 "comprises" and its derivatives are intended to specify the presence of stated features, elements, components, groups, integers and/or steps but not to exclude other unstated features, elements, components, groups, An open term for the presence of integers and/or steps. This concept also applies to words of similar meaning, such as the terms "having", "including" and their derivatives.
術語「構件」、「區段」、「部分」、「部件」、「元件」、「主體」及「結構」當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 "member", "section", "portion", "part", "element", "body" and "structure" when used in the singular 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,例如特定次序及類似者。此外,例如,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。 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 and the like. Furthermore, for example, the term "first element" does not imply the existence of a "second element" by itself, and the term "second element" does not imply the existence of a "first element" by itself.
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的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 paired elements have different shapes or structures from each other, in addition to configurations in which paired elements have the same shape or structure as each other.
因此,術語「一」、「一或多個」及「至少一個」在本文中可互換地使用。 Accordingly, 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「實質上」、「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「實質上」、「大約」及「大致」之術語。 Finally, terms of degree such as "substantially", "about" and "approximately" as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. All numerical values described in this application can be understood to include terms such as "substantially", "about" and "approximately".
顯然,鑒於以上教示,本發明之眾多修改及變化係可能的。因此應理解,在所附申請專利範圍之範疇內,可以不同於如本文中特定描述之方式的其他方式實踐本發明。 Obviously many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.
14:自行車後鏈輪總成 14:Bicycle rear sprocket assembly
20:自行車鏈條 20: Bicycle chain
A1:旋轉中心軸線 A1: Rotation center axis
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 direction of rotation
SP1:鏈輪 SP1: sprocket
SP1B:鏈輪齒 SP1B: sprocket teeth
SP2:鏈輪 SP2: sprocket
SP2B:鏈輪齒 SP2B: sprocket teeth
SP3:鏈輪 SP3: Sprocket
SP3B:鏈輪齒 SP3B: sprocket teeth
SP4:鏈輪 SP4: Sprocket
SP4B:鏈輪齒 SP4B: sprocket teeth
SP5:鏈輪 SP5: sprocket
SP5B:鏈輪齒 SP5B: sprocket teeth
SP6:鏈輪 SP6: sprocket
SP6B:鏈輪齒 SP6B: sprocket teeth
SP7:鏈輪 SP7: Sprocket
SP7B:鏈輪齒 SP7B: sprocket teeth
SP8:鏈輪 SP8: Sprocket
SP8B:鏈輪齒 SP8B: sprocket teeth
SP9:鏈輪 SP9: Sprocket
SP9B:鏈輪齒 SP9B: sprocket teeth
SP10:鏈輪 SP10: Sprocket
SP10B:鏈輪齒 SP10B: sprocket teeth
SP11:鏈輪 SP11: Sprocket
SP11B:鏈輪齒 SP11B: sprocket teeth
SP12:鏈輪 SP12: Sprocket
SP12B:鏈輪齒 SP12B: sprocket teeth
TD1:齒尖直徑 TD1: tooth tip diameter
XXIII-XXIII:線 XXIII-XXIII: Line
Claims (13)
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US15/608,915 | 2017-05-30 | ||
US15/608,924 US11332213B2 (en) | 2017-05-30 | 2017-05-30 | Bicycle rear sprocket assembly and bicycle drive train |
US15/608,924 | 2017-05-30 | ||
US15/608,915 US11059541B2 (en) | 2017-05-30 | 2017-05-30 | Bicycle hub assembly |
US15/673,346 US10377174B2 (en) | 2017-08-09 | 2017-08-09 | Bicycle hub assembly |
US15/673,346 | 2017-08-09 | ||
US15/686,177 | 2017-08-25 | ||
US15/686,177 US11179967B2 (en) | 2017-05-30 | 2017-08-25 | Bicycle hub assembly |
US15/686,179 US11220309B2 (en) | 2017-05-30 | 2017-08-25 | Bicycle rear sprocket assembly |
US15/686,179 | 2017-08-25 |
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TWI785386B true TWI785386B (en) | 2022-12-01 |
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TW111140632A TW202323130A (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly |
TW107116089A TWI700198B (en) | 2017-05-30 | 2018-05-11 | Bicycle hub assembly |
TW109133511A TWI785386B (en) | 2017-05-30 | 2018-05-11 | Bicycle rear sprocket assembly |
TW109122289A TWI795653B (en) | 2017-05-30 | 2018-05-11 | Bicycle hub assembly |
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TW107116089A TWI700198B (en) | 2017-05-30 | 2018-05-11 | Bicycle hub assembly |
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CN (4) | CN111469972B (en) |
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DE202018106137U1 (en) | 2018-11-08 |
DE102018111282A1 (en) | 2018-12-06 |
CN108973521A (en) | 2018-12-11 |
CN111469972B (en) | 2023-02-17 |
DE102018008586A1 (en) | 2018-12-27 |
DE102018111278A1 (en) | 2018-12-06 |
CN108974235A (en) | 2018-12-11 |
TWI700198B (en) | 2020-08-01 |
TW201900493A (en) | 2019-01-01 |
CN113060240A (en) | 2021-07-02 |
CN108973521B (en) | 2021-10-08 |
TW202118691A (en) | 2021-05-16 |
CN111469972A (en) | 2020-07-31 |
TWI795653B (en) | 2023-03-11 |
TW202323130A (en) | 2023-06-16 |
TW202118652A (en) | 2021-05-16 |
JP6728273B2 (en) | 2020-07-22 |
DE102018008581A1 (en) | 2018-12-20 |
CN108974235B (en) | 2021-03-09 |
TWI707801B (en) | 2020-10-21 |
JP6642934B2 (en) | 2020-02-12 |
JP2018203240A (en) | 2018-12-27 |
TW201900447A (en) | 2019-01-01 |
JP2018203238A (en) | 2018-12-27 |
CN113060240B (en) | 2022-08-19 |
DE202018106138U1 (en) | 2018-11-08 |
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