CN113513567A - Gear power speed change system - Google Patents

Gear power speed change system Download PDF

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Publication number
CN113513567A
CN113513567A CN202010274754.1A CN202010274754A CN113513567A CN 113513567 A CN113513567 A CN 113513567A CN 202010274754 A CN202010274754 A CN 202010274754A CN 113513567 A CN113513567 A CN 113513567A
Authority
CN
China
Prior art keywords
gear
chain
driving
gears
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010274754.1A
Other languages
Chinese (zh)
Inventor
王敬顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Connectek Inc
Original Assignee
Advanced Connectek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Connectek Inc filed Critical Advanced Connectek Inc
Priority to CN202010274754.1A priority Critical patent/CN113513567A/en
Publication of CN113513567A publication Critical patent/CN113513567A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/065—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with a plurality of driving or driven shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels
    • F16H55/303—Chain-wheels for round linked chains, i.e. hoisting chains with identical links
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1263—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially straight path

Abstract

The invention provides a gear power speed change system, which mainly comprises: the transmission device comprises a rotating disc group, a first speed changing wheel group, a second speed changing wheel group, a plurality of free gears, a plurality of driving chain wheels, a chain and a power output shaft group, wherein the rotating disc group comprises a first disc body and a second disc body, the first speed changing wheel group and the second speed changing wheel group are arranged between the first disc body and the second disc body, the first speed changing wheel group comprises a first driving gear and a first power output gear, a first linkage gear in the first power output gear is meshed with the first driving gear, a first chain wheel is arranged on one side of the first linkage gear, the second speed changing wheel group comprises a second driving gear and a second power output gear, a second linkage gear in the second power output gear is meshed with the second driving gear, a second chain wheel is arranged on one side of the second linkage gear, gears are respectively pivoted between the first disc body and the second disc body and respectively positioned between the first chain wheel and the second chain wheel, and are simultaneously combined with the driving chain wheels, A refining bar and a power output shaft group.

Description

Gear power speed change system
Technical Field
The invention relates to a speed change system, in particular to a gear power speed change system.
Background
Generally, the conventional gearbox changes the rotation speed ratio between an engine and wheels to enable the engine to have a relatively-low-width power belt, and can meet the very complex and variable requirements of power when people drive. Therefore, when changing gears of the gearbox, the same wheel speed is meant, and the engine speed is changed to transit from a certain speed of one gear to another speed of the next gear.
If the process that the engine speed is pulled up or dragged down is not good, the engine speed is suddenly changed during gear shifting, the inertia of moving parts in the engine can react on a vehicle body, a small part of the vibration is directly transmitted to the vehicle body from the engine suspension, the rest of the vibration is transmitted to a gearbox and then to a transmission shaft, and finally the vehicle speed suddenly changes, so that the impact feeling is generated. The lower the gear, the higher the engine torque amplification, and the more pronounced the jerk, and improvements are needed.
The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for anyone skilled in the art to understand the technical contents of the present invention and to implement the present invention, and the related objects and advantages of the present invention can be easily understood by anyone skilled in the art according to the disclosure of the present specification, the claims and the accompanying drawings.
Disclosure of Invention
The main purposes of the invention are as follows: the matching combination of the rotating disc group, the first speed changing wheel group, the second speed changing wheel group, the plurality of free gears, the plurality of driving chain wheels, the chain and the power output shaft group is utilized, the defects that the traditional clutch transfers power by friction, the torsion is too large and the traditional clutch is easy to slip are effectively improved, and the space of the traditional clutch can be reduced.
The invention aims to achieve the aim, and the invention relates to a gear power speed change system which comprises a rotating disc set, a speed change device and a speed change device, wherein the rotating disc set comprises a first disc body and a second disc body arranged corresponding to the position of the first disc body; a first gear set, comprising: the first power output gear comprises a plurality of first linkage gears meshed with the first driving gear and at least one first chain wheel arranged on one side of the first linkage gears; a second gear set, comprising: a second power output gear that is located central place between second disk body and the first disk body and corresponds the second driving gear that sets up with first driving gear, a plurality of pivots are located between second disk body and the first disk body, and second power output gear includes: a plurality of second linkage gears meshed with the second driving gears and at least one second chain wheel arranged on one side of the second linkage gears; the free gears are pivoted between the first disc body and the second disc body, and each free gear is positioned between the first chain wheel and the second chain wheel; the driving chain wheels are arranged on the peripheries of the first speed changing wheel group and the second speed changing wheel group, and at least one of the driving chain wheels is provided with a power input shaft; at least one chain which can be meshed with the first chain wheel, the second chain wheel or the free gear and drives the chain wheels for linkage; and a power output shaft group, which at least comprises a first output shaft fixed with the first driving gear and a second output shaft fixed with the second driving gear.
According to an embodiment of the present invention, the transmission device further includes a housing for accommodating the first transmission gear set, the second transmission gear set, the gear, the driving sprocket and the chain.
According to an embodiment of the present invention, the chain tension adjusting device further includes a tension adjusting member pivotally disposed on the housing, and a tension gear engaged with the chain is disposed at one end of the tension adjusting member.
According to an embodiment of the present invention, each of the driving sprocket, the first sprocket, the second sprocket and the free gear is in the same plane.
According to an embodiment of the present invention, the first sprocket, the second sprocket and the free gear are arranged in concentric circles.
According to an embodiment of the present invention, the first sprockets on one side of the first linkage gears are a plurality of chains arranged side by side and linked to the chains respectively.
According to an embodiment of the present invention, the second sprockets on one side of the second linking gear are arranged side by side and respectively link chains.
According to an embodiment of the present invention, the first sprocket and the second sprocket have the same number of teeth.
According to an embodiment of the present invention, the apparatus further includes a motor connected to drive the second tray.
According to an embodiment of the invention, the chain is an elastic chain.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded perspective view of the preferred embodiment of the present invention;
FIG. 3 is a schematic structural view of the first sprocket, the second sprocket and the free gear;
FIG. 4 is a schematic cross-sectional view of a power output shaft assembly, a first driving gear and a second driving gear according to the present invention;
FIG. 5 is a schematic position diagram of the driving sprocket, the first sprocket, the second sprocket and the free gear in the same plane position according to the present invention;
FIG. 6 is an operation structure diagram of the first transmission gear set according to the present invention;
FIG. 7 is an operation structure diagram of a second transmission gear set according to the present invention;
FIG. 8 is a schematic view of an actuating structure of the free gear of the present invention;
fig. 9 is a schematic structural view of another chain combining the first linkage gear and the second linkage gear according to the present invention.
Description of the reference numerals
1 speed change system
10 rotating disk group
100 first disc body
102 second plate
11 first speed change wheel group
110 first driving gear
111 first power output gear
1110 first linkage gear
1111 first chain wheel
12 second speed change wheel set
120 second driving gear
1220 second linkage gear
1222 second sprocket
122 second power output gear
13 free gear
14 drive sprocket
140 power input shaft
15 chain
16 power output shaft group
160 first output shaft
162 second output shaft
17 casing
18 tension adjusting member
180 tension gear
19 Motor
2 gearbox arrangement.
Detailed Description
The invention provides a gear power speed change system, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, which are a schematic perspective view, a schematic perspective exploded view, a schematic structural view of a first sprocket, a second sprocket and a free gear, a schematic sectional structure of a power output shaft set and a first driving gear and a second driving gear, and a schematic position view of a driving sprocket, a first sprocket, a second sprocket and a free gear at the same plane position according to a preferred embodiment of the present invention. The invention is a gear power transmission system, the transmission system 1 includes: the transmission device comprises a rotating disc group 10, a first transmission wheel group 11, a second transmission wheel group 12, a plurality of free gears 13, a plurality of driving sprockets 14, at least one chain 15 (an elastic chain) and a power output shaft group 16. Wherein the rotating disc set 10 includes a first disc 100 and a second disc 102 disposed corresponding to the first disc 100, the first transmission gear set 11 includes: a first driving gear 110 located at the center between the first tray 100 and the second tray 102, and a plurality of first power output gears 111 pivotally disposed between the first tray 100 and the second tray 102, wherein the first power output gears 111 comprise: a plurality of first linkage gears 1110 engaged with the first driving gear 110 and at least one first sprocket 1111 disposed at one side of the first linkage gears 1110. The second transmission wheel set 12 includes: a second driving gear 120 located at the center between the second plate 102 and the first plate 100 and corresponding to the first driving gear 110, and a plurality of second power output gears 122 pivotally disposed between the second plate 102 and the first plate 100, wherein the second power output gears 122 include: a plurality of second interlocking gears 1220 engaged with the second driving gears 120 and at least one second sprocket 1222 disposed at one side of the second interlocking gears 1220.
In addition, a plurality of free gears 13 are pivotally disposed between the first tray 100 and the second tray 102, wherein each free gear 13 is located between the first sprocket 1111 and the second sprocket 1222. The plurality of driving sprockets 14 are respectively disposed around the first transmission pulley set 11 and the second transmission pulley set 12, at least one of the driving sprockets 14 is provided with a power input shaft 140 and at least one chain 15, which can be meshed with the first sprocket 1111, the second sprocket 1222 or the free gear 13 and each driving sprocket 14 for linkage, and the power output shaft set 16 at least includes a first output shaft 160 fixed with the first driving gear 110 and a second output shaft 162 fixed with the second driving gear 120.
In addition to the above structure, the present invention further comprises a housing 17, a tension adjusting member 18 and a motor 19, wherein the housing 17 is used for accommodating the first transmission gear set 11, the second transmission gear set 12, the driven gear 13, the driven sprocket 14 and the chain 15. Wherein the tension adjusting member 18 is pivotally mounted to the housing 17 and has a tension gear 180 at one end thereof for engaging with the chain 15. Wherein the motor 19 is connected to drive the second plate 102.
In the above description, the driving sprocket 14, the first sprocket 1111, the second sprocket 1222, and the free gear 13 are located on the same plane, and the first sprocket 1111, the second sprocket 1222, and the free gear 13 are disposed concentrically.
The first sprockets 1111 of the first linkage gears 1110 are arranged in parallel and are linked to the chains 15 respectively. The second sprockets 1222 of the second interlocking gear 1220 are arranged in parallel and respectively link the chains 15 (see fig. 9).
The first sprocket 1111 and the second sprocket 1222 have the same number of teeth, and thus can be used instead of the transmission clutch.
Referring to fig. 6, which is a schematic view of an operation structure of the first gear set of the present invention, and referring to fig. 4, it can be seen that the first driving gear 110 of the first gear set 11 is mainly located at the center between the first plate 100 and the second plate 102, wherein the first driving gear 110 is fixed to the first output shaft 160 of the power output shaft set 16, the second driving gear 120 is fixed to the second output shaft 162 of the power output shaft set 16, and the first power output gear 111 of the first gear set 11 is pivoted between the first plate 100 and the second plate 102, and importantly, the first connecting gear 1110 of the first power output gear 111 is engaged with the first driving gear 110, and the first sprocket 1111 at one side of the first connecting gear 1110 is linked with the chain 15.
Referring to fig. 7, it is shown that the second transmission gear set of the present invention is configured in an operation structure, and referring to fig. 4, it can be seen that the second driving gear 120 of the second transmission gear set 12 is mainly located at the center between the second plate 102 and the first plate 100 and is disposed corresponding to the first driving gear 110, wherein the second power output gear 122 of the second transmission gear set 12 is pivoted between the first plate 100 and the second plate 102, and importantly, the second interlocking gear 1220 of the second power output gear 122 is engaged with the second driving gear 120, and the second sprocket 1222 at one side of the second interlocking gear 1220 is linked with the chain 15.
Fig. 8 is a schematic view of the operation structure of the free gear according to the present invention. Each free gear 13 is pivotally installed between the first tray 100 and the second tray 102, wherein each free gear 13 is mainly located between the first sprocket 1111 and the second sprocket 1222, and each free gear 13 is engaged with only the chain 15, so that it can be in an idle state. As can be seen from the above, the power input shaft 140 mainly drives the driving sprocket 14 to continuously provide power, and drives the free gears 13 through the chain 15 in a state that the transmission device 2 is not started, and because the free gears 13 rotate independently, the free gears 13 do not engage with the first driving gear 110 and the second driving gear 120, so as to avoid the occurrence of a jerk feeling or even damage to the chain 15 and other sprockets during rotation, after the chain 15 is connected with the driving sprocket 14, the chain 15 engages with the free gears 13, and because the free gears 13 are not affected by any external force, the free gears 13 can rotate freely, so that the chain 15 is kept in an engaged state before engaging with the free gears 13, thereby reducing the jerk feeling or even structural damage.
The power output shaft set 16 is mainly connected to the transmission device 2, wherein the first output shaft 160 and the second output shaft 162 in the power output shaft set 16 respectively drive gear mechanisms with different gear ratios, when the gear mechanism connected to the first output shaft 160 needs to be started, the motor 19 is connected to drive the second disc 102, at this time, the second disc 102 rotates to make the first power output gear 111, the second power output gear 122 and the free gear 13 rotate simultaneously, the first driving gear 110 fixed to the first output shaft 160 is mainly meshed with the first linkage gear 1110 in the first power output gear 111, when the first sprocket 1111 is linked by the chain 15 to make the first power output gear 111 rotate, at this time, the first driving gear 110 meshed with the first power output gear 111 rotates synchronously, and further, the first output shaft 160 is driven to make the linked gear mechanism operate.
In addition to the above-mentioned first speed change, when the second speed change is required, that is, the second output shaft 162 drives the gear mechanism with the corresponding gear ratio, the motor 19 operates again and drives the second disc 102, at this time, the second disc 102 rotates again, the first power output gear 111 originally engaged with the first driving gear 110 is immediately disengaged, the second power output gear 122 rotates and is engaged with the second driving gear 120 while the second disc 102 rotates, and the second driving gear 120 drives the second output shaft 162 in the power output shaft set 16 to rotate, so as to start the second speed change.
It should be noted that the chain 15 may be an elastic chain, which is mainly retracted and extended by the force of a spring, so as to reduce the vibration and noise generated during the operation of the engine.
Furthermore, the tension gear 180 is disposed at one end of the tension adjusting member 18, the tension gear 180 is mainly engaged with the chain 15, an elastic force is generated toward the chain 15 by the tension adjusting member 18, when the chain 15 expands or contracts due to the shift operation of the pulley set 10, the tension state of the chain 15 can be controlled by the tension adjusting member 18, and the tension gear 180 is engaged with the chain 15 to help the chain 15 to adjust the tension and simultaneously to smooth and fix the transmission in the front-back direction.
Fig. 9 is a schematic view of another chain structure combining a first linkage gear and a second linkage gear according to the present invention. In this embodiment, the first chain wheel 1111 of the first linkage gear 1110 is formed by a plurality of chain wheels 15 arranged side by side and linked to each other. The second sprockets 1222 of the second interlocking gear 1220 are arranged in parallel and respectively link the chains 15. The first sprocket 1111 and the second sprocket 1222 take three side by side as an example, the number of the first sprocket 1111 and the second sprocket 1222 corresponding to the free gear 13 and the driving sprocket 14 is the same as the above, but the overall operation tension effect can be increased when three chains 15 are provided, for example, the tension is 3N when a single chain 15 is pulled, and the tension is 9N when three chains 15 are provided, so that the risk of breakage is greatly reduced when the whole operation is performed.
As can be seen from the above, the present invention mainly utilizes the matching combination of the rotating disc set 10, the first transmission gear set 11, the second transmission gear set 12, the plurality of free gears 13, the plurality of driving sprockets 14, the chain 15 and the power output shaft set 16 to effectively improve the disadvantages of the conventional clutch that the power is transmitted by friction, the torque force is too large and the clutch is easy to slip, and reduce the space of the conventional clutch.
It should be understood, however, that the intention is not to limit the invention to the particular embodiments described, but to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A geared power transmission system, comprising:
the rotating disc group comprises a first disc body and a second disc body arranged corresponding to the first disc body;
a first gear set, comprising: a first driving gear, a plurality of pivots that are located central department between this first disk body and this second disk body locate the first power take off gear between this first disk body and this second disk body, and this first power take off gear includes: a plurality of first driving gears meshed with the first driving gears and at least one first chain wheel arranged on one side of the first driving gears;
a second gear set, comprising: a second power output gear that is located central department between this second disk body and this first disk body and corresponds the setting with this first driving gear, a plurality of pivots are located between this second disk body and this first disk body, and this second power output gear includes: a plurality of second linkage gears meshed with the second driving gears and at least one second chain wheel arranged on one side of the second linkage gears;
a plurality of free gears which are pivoted between the first disc body and the second disc body, wherein each free gear is respectively positioned between the first chain wheel and the second chain wheel;
a plurality of driving chain wheels, each driving chain wheel is arranged at the periphery of the first speed changing wheel group and the second speed changing wheel group, and at least one driving chain wheel is provided with a power input shaft;
at least one chain which can be meshed with the first chain wheel, the second chain wheel or the free gear and drives the chain wheels for linkage; and
and the power output shaft group at least comprises a first output shaft fixed with the first driving gear and a second output shaft fixed with the second driving gear.
2. The gear power transmission system of claim 1, wherein: and the chain transmission device also comprises a shell for accommodating the first speed change wheel set, the second speed change wheel set, the gear, the driving chain wheels and the chain.
3. The gear power transmission system of claim 1, wherein: the tension adjusting piece is pivoted on the shell, and one end of the tension adjusting piece is provided with a tension gear meshed with the chain.
4. The gear power transmission system of claim 1, wherein each of the driving sprocket, the first sprocket, the second sprocket and the free gear are in a same planar position.
5. The gear power transmission system of claim 1, wherein: the first chain wheel, the second chain wheel and the free gear are arranged in a concentric circle.
6. The gear power transmission system of claim 1, wherein: the first chain wheels on one side of the first linkage gears are arranged in parallel and respectively linked with the chains.
7. The gear power transmission system of claim 1, wherein: the second chain wheels on one side of the second linkage gear are arranged in parallel and respectively link the chains.
8. The gear power transmission system of claim 1, wherein: the first chain wheel and the second chain wheel have the same number of teeth.
9. The gear power transmission system of claim 1, wherein: also comprises a motor which is connected with and drives the second disc body.
10. The gear power transmission system of claim 1, wherein: the chain is an elastic chain.
CN202010274754.1A 2020-04-09 2020-04-09 Gear power speed change system Pending CN113513567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010274754.1A CN113513567A (en) 2020-04-09 2020-04-09 Gear power speed change system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010274754.1A CN113513567A (en) 2020-04-09 2020-04-09 Gear power speed change system

Publications (1)

Publication Number Publication Date
CN113513567A true CN113513567A (en) 2021-10-19

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ID=78060310

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010274754.1A Pending CN113513567A (en) 2020-04-09 2020-04-09 Gear power speed change system

Country Status (1)

Country Link
CN (1) CN113513567A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189913857A (en) * 1899-07-05 1900-07-05 Electric Motive Power Company Improvements in Power Transmitting Mechanisms.
TW200930614A (en) * 2008-01-03 2009-07-16 Chin-Chuo Chuo Bicycle crank speed change sprocket module
CN102016362A (en) * 2008-05-16 2011-04-13 博格华纳公司 Manual transmission using chain and planetary gear set as final drive
CN104254456A (en) * 2012-02-07 2014-12-31 麦格纳动力系美国有限公司 Transfer case sprocket idler gear actuation
CN105526321A (en) * 2016-02-24 2016-04-27 黄英可 Speed changer
TW201632404A (en) * 2015-03-06 2016-09-16 島野股份有限公司 Bicycle transmission apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189913857A (en) * 1899-07-05 1900-07-05 Electric Motive Power Company Improvements in Power Transmitting Mechanisms.
TW200930614A (en) * 2008-01-03 2009-07-16 Chin-Chuo Chuo Bicycle crank speed change sprocket module
CN102016362A (en) * 2008-05-16 2011-04-13 博格华纳公司 Manual transmission using chain and planetary gear set as final drive
CN104254456A (en) * 2012-02-07 2014-12-31 麦格纳动力系美国有限公司 Transfer case sprocket idler gear actuation
TW201632404A (en) * 2015-03-06 2016-09-16 島野股份有限公司 Bicycle transmission apparatus
CN105526321A (en) * 2016-02-24 2016-04-27 黄英可 Speed changer

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Application publication date: 20211019