TWM599770U

TWM599770U - Bicycle derailleur device

Info

Publication number: TWM599770U
Application number: TW109203717U
Authority: TW
Inventors: 王敬順
Original assignee: 王敬順
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-08-11

Abstract

本創作為一種自行車之變速裝置，變速裝置裝設於自行車，主要包括：變速輪組、複數惰輪及鏈條，變速輪組包含：固定盤體、主動齒輪、轉動盤組及變速齒輪組，其中各變速齒輪組包含變速齒輪及動力輸出齒輪，其中變速齒輪嚙合於主動齒輪，而動力輸出齒輪嚙合於變速齒輪，至於鏈條則分別與各惰輪及其中之一變速齒輪組中的動力輸出齒輪嚙合，如此一來，因各變速齒輪組的齒輪比採固定方式，因此在進行變速時可精準的依據需求調至所需的變速效果，不僅如此，因鏈條在旋轉移動時，鏈條位於變速輪組的同一平面上，鏈條不會偏擺至不同位置，避免傳統因變速切換時所造成的鏈條脫離風險。 This creation is a gear shifting device for a bicycle. The gear shifting device is installed on the bicycle. It mainly includes: a shifting wheel set, a plurality of idlers and a chain. The shifting wheel set includes: a fixed disc body, a driving gear, a rotating disc set and a shifting gear set. Each transmission gear set includes a transmission gear and a power output gear. The transmission gear meshes with the driving gear and the power output gear meshes with the transmission gear. As for the chain, each idler gear and the power output gear in one of the transmission gear sets mesh with each other. In this way, because the gear ratio of each transmission gear set is fixed, it can be accurately adjusted to the desired transmission effect according to the demand when the gear is changed. Not only that, because the chain is in the transmission wheel set when the chain is rotating. On the same plane, the chain will not deflect to different positions, avoiding the risk of chain detachment caused by traditional shifting.

Description

自行車之變速裝置 Gear shifting device for bicycle

本創作係一種變速裝置，尤指一種自行車之變速裝置。 This creation is a gear shifting device, especially a bicycle gear shifting device.

按，傳統動力車輛的齒輪變速，在踏板處大多是以兩輪盤或三輪盤疊合，齒輪比大多是以每階降20%的方式變速，而後輪的齒輪比大部分是11~25、11~28以及11~32，相鄰齒盤以20%幅度增加，總昇階幅度大約為34%至40%，因此會產生多種重覆齒比的現象。 According to the traditional power vehicle gear shift, the pedals are mostly two or three wheel disks superimposed, the gear ratio is mostly reduced by 20% per step, and the rear wheel gear ratio is mostly 11-25, From 11 to 28 and 11 to 32, the adjacent chainrings increase by 20%, and the total step-up range is about 34% to 40%, so there will be a variety of overlapping gear ratios.

除上述問題外，因齒輪變速結構的寬度會因為齒盤變多而變寬，如果齒比下降太多，鏈條不容易切換或是切換不順，而容易發生鏈條脫離的問題。 In addition to the above problems, the width of the gear shift structure will become wider due to the increase in the number of gears. If the gear ratio drops too much, the chain will not be easy to switch or the switch will not be smooth, and the problem of chain detachment will easily occur.

以下在實施方式中詳細敘述本創作之詳細特徵以及優點，其內容足以使任何熟習相關技藝者瞭解本創作之技術內容並據以實施，且根據本說明書所揭露之內容、申請專利範圍及圖式，任何熟習相關技藝者可輕易地理解本創作相關之目的及優點。 The detailed features and advantages of this creation will be described in detail in the following implementations. The content is sufficient to enable anyone familiar with relevant skills to understand the technical content of this creation and implement it accordingly, and in accordance with the content disclosed in this specification, the scope of patent application and the drawings. , Anyone who is familiar with relevant skills can easily understand the purpose and advantages of this creation.

本創作之主要目的在於：因各變速齒輪組的齒輪比採固定方式，因此在進行變速時可精準的依據需求調至所需的變速效果。 The main purpose of this creation is: because the gear ratio of each transmission gear set is fixed, it can be accurately adjusted to the desired transmission effect according to the demand when the transmission is performed.

為達上述目的，本創作是一種自行車之變速裝置，該變速裝置裝設於該自行車，其包括：一變速輪組，其包含：一固定盤體、一樞設於該固定盤體之轉動盤組、一設置於該轉動盤組中間處之主動齒輪及複數分別樞設於該轉動盤組且齒輪比不同之變速齒輪組，其中各該變速齒輪組包含一嚙合於該主動齒輪之變速齒輪及一嚙合於該變速齒輪之動力輸出齒輪；複數惰輪，各該惰輪樞設於該固定盤體；及一鏈條，其分別與各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合。 To achieve the above-mentioned purpose, this creation is a gear shifting device for bicycles. The device is installed on the bicycle and includes: a shift wheel set, which includes: a fixed disk body, a rotating disk set pivoted on the fixed disk body, a driving gear arranged in the middle of the rotating disk set, and plural Each of the transmission gear sets pivoted on the rotating disk set and with different gear ratios, wherein each of the transmission gear sets includes a transmission gear meshed with the driving gear and a power output gear meshed with the transmission gear; a plurality of idlers, each The idler is pivoted on the fixed disc body; and a chain is meshed with each of the idler and one of the power output gears in the transmission gear set.

根據本創作之一實施例，其中該轉動盤組包括一樞設於該固定盤體之第一轉動盤、一對應該第一轉動盤設置且由一傳動軸穿設以連動之第二轉動盤。 According to an embodiment of the present creation, the rotating disc group includes a first rotating disc pivoted on the fixed disc body, and a second rotating disc arranged corresponding to the first rotating disc and being linked by a transmission shaft. .

根據本創作之一實施例，其中該動力輸出齒輪包括：一與該鏈條嚙合之鏈輪及一設置於該鏈輪一側且與該變速齒輪嚙合之連動齒輪。 According to an embodiment of the present invention, the power output gear includes: a sprocket meshing with the chain and a linkage gear arranged on one side of the sprocket and meshing with the transmission gear.

根據本創作之一實施例，其中各該鏈輪的齒比分別為1，1.5，2.3及3.5，各該變速齒輪的齒比分別為1，1.1，1.2，1.3。 According to an embodiment of the present invention, the gear ratios of each sprocket are 1, 1.5, 2.3, and 3.5, and the gear ratios of each transmission gear are 1, 1.1, 1.2, and 1.3, respectively.

根據本創作之一實施例，其中各該動力輸出齒輪與該主動齒輪為同向旋轉，各該變速齒輪與該主動齒輪為不同向旋轉。 According to an embodiment of the invention, each of the power output gear and the driving gear rotate in the same direction, and each of the transmission gear and the driving gear rotate in different directions.

根據本創作之一實施例，更包括：一切換器，其連接該轉動盤組，用以轉動該轉動盤組以選擇其中之一該變速齒輪組嚙合於該鏈條，以改變該鏈條移動的速度。 According to an embodiment of the present invention, it further includes: a switcher connected to the rotating disk set for rotating the rotating disk set to select one of the shifting gear sets to mesh with the chain to change the speed of the chain movement .

根據本創作之一實施例，其中該自行車中的二踏板，與該轉動盤組同軸設置；一多齒輪，設置於一後輪上，嚙合該鏈條；以及一切換器，其連接該轉動盤組，用以轉動該轉動盤組以選擇其中之一該變速齒輪組嚙合於該鏈條，以改變該鏈條移動的速度。 According to an embodiment of the present invention, the two pedals in the bicycle are arranged coaxially with the rotating disc group; a multi-gear is arranged on a rear wheel to engage the chain; and a switch is connected to the rotating disc group , Used to rotate the rotating disc set to select one of the gear shifting gear sets to mesh with the chain to change the speed of the chain movement.

根據本創作之一實施例，其中該自行車中的二踏板與一後輪分別樞接該轉動盤組且同軸設置，該鏈條分別嚙合於位在各該踏板處的各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合，以及位於該後輪處的各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合。 According to an embodiment of the present invention, two pedals and a rear wheel in the bicycle are respectively pivotally connected to the rotating disc group and arranged coaxially, and the chain is respectively engaged with each of the idler wheels and one of the idlers located at each of the pedals The power output gear in the transmission gear set meshes, and each of the idlers located at the rear wheel and one of the power output gears in the transmission gear set mesh.

根據本創作之一實施例，更包括一樞設於該固定盤體之張力調整件，該張力調整件一端設置一與該鏈條嚙合之張力齒輪。 According to an embodiment of the present invention, it further includes a tension adjusting member pivoted on the fixed disk body, and one end of the tension adjusting member is provided with a tension gear meshing with the chain.

根據本創作之一實施例，更包括複數自由齒輪，其樞設於該第一轉動盤及該第二轉動盤之間，其中各該自由齒輪分別位於各該動力輸出齒輪之間。 According to an embodiment of the present invention, it further includes a plurality of free gears, which are pivoted between the first rotating disk and the second rotating disk, wherein each of the free gears is located between each of the power output gears.

本創作之次要目的在於：因鏈條在旋轉移動時，鏈條位於變速輪組的同一平面上，鏈條不會偏擺至不同位置，避免傳統因變速切換時所造成的鏈條脫離風險。 The secondary purpose of this creation is: when the chain is rotating and moving, the chain is located on the same plane of the gear wheel set, so the chain will not deflect to different positions, avoiding the risk of chain detachment caused by traditional gear shifting.

1:變速裝置 1: Variable speed device

10:變速輪組 10: Variable speed wheels

100:固定盤體 100: fixed plate

101:轉動盤組 101: Rotating plate group

1010:第一轉動盤 1010: The first rotating disc

1012:第二轉動盤 1012: second rotating disc

102:主動齒輪 102: driving gear

103:變速齒輪組 103: Variable speed gear set

1030:變速齒輪 1030: shift gear

1032:動力輸出齒輪 1032: PTO gear

1032a:鏈輪 1032a: Sprocket

1032b:連動齒輪 1032b: Linkage gear

12:惰輪 12: Idler

14:鏈條 14: chain

2:自行車 2: bicycle

20:踏板 20: Pedal

22:後輪 22: rear wheel

24:多齒輪 24: multiple gears

3:傳動軸 3: drive shaft

4:切換器 4: switcher

5:張力調整件 5: Tension adjuster

50:張力齒輪 50: Tension gear

6:自由齒輪 6: free gear

圖1 為本創作較佳實施例之立體示意圖。 Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of creation.

圖2 為本創作較佳實施例之立體分解示意圖。 Figure 2 is a three-dimensional exploded schematic diagram of a preferred embodiment of creation.

圖3 為本創作多組齒輪比不同之變速齒輪組示意圖。 Figure 3 is a schematic diagram of multiple sets of gears with different gear ratios.

圖4 為本創作改變變速齒輪組之作動示意圖。 Figure 4 is a schematic diagram of the action of changing the transmission gear set for this creation.

圖5 為本創作裝設於自行車二踏板位置之使用狀態示意圖。 Figure 5 is a schematic diagram of the creative installation on the second pedal position of the bicycle.

圖6 為本創作裝設於自行車的二踏板位置以及後輪位置之使用狀態示意圖。 Figure 6 is a schematic diagram of the creative installation at the two pedal positions and the rear wheel position of the bicycle.

以下藉由具體實施例說明本創作之實施方式，熟悉此技藝之人士可由本說明書所揭示之內容輕易地瞭解本創作之其他優點及功效。 The following specific examples illustrate the implementation of this creation, familiar with this technique People can easily understand the other advantages and effects of this creation from the content disclosed in this manual.

本說明書所附圖式所繪示之結構、比例、大小等，均僅用以配合說明書所揭示之內容，以供熟悉此技藝之人士之瞭解與閱讀，並非用以限定本創作可實施之限定條件，故不具技術上之實質意義，任何結構之修飾、比例關係之改變或大小之調整，在不影響本創作所能產生之功效及所能達成之目的下，均應仍落在本創作所揭示之技術內容得能涵蓋之範圍內。同時，本說明書中所引用之如“一”、“兩”、“上”等之用語，亦僅為便於敘述之明瞭，而非用以限定本創作可實施之範圍，其相對關係之改變或調整，在無實質變更技術內容下，當亦視為本創作可實施之範疇。 The structure, ratio, size, etc. shown in the drawings in this manual are only used to match the content disclosed in the manual for the understanding and reading of those who are familiar with the art, and are not used to limit the implementation of this creation Conditions, so it does not have any technical significance. Any modification of the structure, changes in proportions, or adjustments in size, without affecting the effects and goals that can be achieved by this creation, should remain in this creation. The technical content disclosed must be within the scope. At the same time, the terms such as "one", "two", "shang", etc. quoted in this specification are only for ease of description and are not used to limit the scope of implementation of this creation, changes in their relative relations or Adjustments, without substantial changes to the technical content, shall also be regarded as the scope of the creation that can be implemented.

請參考圖1、圖2及圖3所示。為本創作較佳實施例之立體示意圖、立體分解示意圖及多組齒輪比不同之變速齒輪組示意圖。本創作是一種自行車之變速裝置，變速裝置1裝設於自行車2，變速裝置1主要包括：變速輪組10、複數惰輪12及鏈條14，變速輪組10包含：固定盤體100、轉動盤組101、主動齒輪102及複數變速齒輪組103，其中轉動盤組101包括第一轉動盤1010及第二轉動盤1012，其中轉動盤組101中的第一轉動盤1010樞設於固定盤體100，對應第一轉動盤1010設置的第二轉動盤1012由一傳動軸3穿設以連動。 Please refer to Figure 1, Figure 2 and Figure 3. These are the three-dimensional schematic diagram, the three-dimensional exploded schematic diagram and the schematic diagram of multiple sets of transmission gear sets with different gear ratios of the preferred embodiment of this creation. This creation is a gear shifting device for a bicycle. The shifting device 1 is installed on the bicycle 2. The shifting device 1 mainly includes: a shifting wheel set 10, a plurality of idlers 12 and a chain 14. The shifting wheel set 10 includes: a fixed disc body 100, a rotating disc The group 101, the driving gear 102 and the plural transmission gear group 103, wherein the rotating disc group 101 includes a first rotating disc 1010 and a second rotating disc 1012, wherein the first rotating disc 1010 in the rotating disc group 101 is pivoted on the fixed disc body 100 , The second rotating disk 1012 corresponding to the first rotating disk 1010 is penetrated by a transmission shaft 3 for linkage.

主動齒輪102設置於轉動盤組101中間處，轉動盤組101樞設於固定盤體100，另外各變速齒輪組103分別樞設於轉動盤組101且齒輪比不同，其中各變速齒輪組103包含變速齒輪1030及動力輸出齒輪1032，變速齒輪1030嚙合於主動齒輪102，動力輸出齒輪1032嚙合於變速齒輪1030。 The driving gear 102 is arranged in the middle of the rotating disc group 101, the rotating disc group 101 is pivoted to the fixed disc body 100, and each transmission gear group 103 is pivoted to the rotation disc group 101 and has different gear ratios, wherein each transmission gear group 103 includes The transmission gear 1030 and the power output gear 1032, the transmission gear 1030 meshes with the driving gear 102, and the power output gear 1032 meshes with the transmission gear 1030.

值得一提的是，動力輸出齒輪1032包括：鏈輪1032a及連動齒齒輪1032b，鏈輪1032a與鏈條14嚙合，連動齒輪1032b則設置於鏈輪1032a一側且與變速齒輪1030嚙合。其中各鏈輪1032a的齒比分別為1，1.5，2.3及3.5，各變速齒輪1030的齒比分別為1，1.1，1.2，1.3，由變速齒輪1030及動力輸出齒輪1032中的鏈輪1032a各自的齒輪比不相同，因此搭配後對於變速齒輪組10的齒輪比則不會不同但可固定齒輪比模式。 It is worth mentioning that the power output gear 1032 includes: a sprocket 1032a and linkage teeth The gear 1032b and the sprocket 1032a mesh with the chain 14, and the interlocking gear 1032b is arranged on the side of the sprocket 1032a and meshes with the transmission gear 1030. The gear ratios of each sprocket 1032a are 1, 1.5, 2.3, and 3.5, respectively, and the gear ratios of each transmission gear 1030 are 1, 1.1, 1.2, 1.3, respectively. The transmission gear 1030 and the sprocket 1032a in the power output gear 1032 are respectively The gear ratios are different, so the gear ratio of the transmission gear set 10 will not be different after matching, but the gear ratio mode can be fixed.

另外，複數惰輪12樞設於固定盤體100，鏈條14分別與各惰輪及其中之一變速齒輪組103中的動力輸出齒輪1032嚙合。 In addition, a plurality of idler gears 12 are pivoted on the fixed disk body 100, and the chain 14 respectively meshes with each idler gear and the power output gear 1032 in one of the transmission gear sets 103.

再者，其中各動力輸出齒輪1032與主動齒輪102為同向旋轉，各變速齒輪1030與主動齒輪102為不同向旋轉。 Furthermore, each power output gear 1032 and the driving gear 102 rotate in the same direction, and each transmission gear 1030 and the driving gear 102 rotate in different directions.

前述中更包括：一切換器4，其連接轉動盤組103，用以轉動轉動盤組101以選擇其中之一變速齒輪組103嚙合於鏈條14，以改變鏈條14移動的速度。 The foregoing further includes: a switch 4 connected to the rotating disk set 103 for rotating the rotating disk set 101 to select one of the shift gear sets 103 to engage with the chain 14 to change the speed of the chain 14 movement.

前述中更包括：一張力調整件5，張力調整件5一端設置有張力齒輪50，張力齒輪50主要與鏈條14嚙合，透過張力調整件5朝鏈條14會產生一個彈性力量，當鏈條14因變速輪組10進行變速操作時會產生擴張或內縮的情況，藉由張力調整件5可控制鏈條14的張力狀態，而張力齒輪50則與鏈條14嚙合以助於鏈條14在調整張力的同時亦可順勢且固定前後方向的傳動。 The foregoing further includes: a force adjusting member 5, one end of the tension adjusting member 5 is provided with a tension gear 50, the tension gear 50 mainly meshes with the chain 14, and an elastic force is generated toward the chain 14 through the tension adjusting member 5, when the chain 14 changes speed The wheel set 10 will expand or contract during the shifting operation. The tension state of the chain 14 can be controlled by the tension adjusting member 5, and the tension gear 50 meshes with the chain 14 to help the chain 14 adjust the tension at the same time. Can take advantage of the trend and fix the forward and backward transmission.

前述中更包括自由齒輪6，其樞設於第一轉動盤1010及第二轉動盤1012之間，其中各自由齒輪6分別位於各動力輸出齒輪1032之間。 The foregoing further includes a free gear 6, which is pivoted between the first rotating disk 1010 and the second rotating disk 1012, and each of the free gears 6 is located between the power output gears 1032.

一併參考圖4可知，為本創作改變變速齒輪組之作動示意圖。由圖中可知變速輪組10以四組變速齒輪組103為例，也就代表有四種不同的齒輪比，藉此可透過上述中的切換器4轉動轉動盤組103以選擇四種的其中一種變速的變速齒輪組103。在此四種變速齒輪組103中可知，每一組變速齒輪組103以變速齒輪1030及動力輸出齒輪1032組成，其中動力輸出齒輪1032又是由鏈輪1032a及連動齒輪1032b組成，位於轉動盤組101中間的主動齒輪102為主要的動力來源，四組變速齒輪組103則分別由各自的變速齒輪1030嚙合，此時實施例中的各變速齒輪1030齒比可為1，1.1，1.2，1.3，至於嚙合於變速齒輪1030的鏈輪1032a，其齒比分別為1，1.5，2.3及3.5，藉由四種齒比的搭配可讓變速齒輪組103具備四種可調變速模式。 Also refer to Figure 4, which shows the schematic diagram of the action of changing the gear set for this creation. It can be seen from the figure that the shift wheel set 10 takes four sets of shift gear sets 103 as an example, which means that there are four different gear ratios, so that the switch 4 mentioned above can be used to rotate the rotating disc set 103 to select four other In a variable speed gear set 103. In the four transmission gear sets 103, it can be seen that each group of transmission gear sets 103 is composed of a transmission gear 1030 and a power output gear 1032. The power output gear 1032 is composed of a sprocket 1032a and a linkage gear 1032b, and is located in the rotating disk group The driving gear 102 in the middle of 101 is the main power source, and the four transmission gear sets 103 are meshed by their respective transmission gears 1030. At this time, the gear ratios of the transmission gears 1030 in the embodiment can be 1, 1.1, 1.2, 1.3, As for the sprocket 1032a meshed with the transmission gear 1030, the gear ratios are respectively 1, 1.5, 2.3 and 3.5. The combination of the four gear ratios allows the transmission gear set 103 to have four adjustable transmission modes.

進行變速時，利用切換器4轉動轉動盤組101，此時原先與變速齒輪組103嚙合的鏈條14即會脫離，由於切換器4的調整方式可為模式一、模式二、模式三及模式四的調整方式，所以以四組變速齒輪組103而言，每調整一次轉動盤組101就是轉動四分之一，因此脫離的變速齒輪組103，會馬上將選擇的變速齒輪組103馬上銜接並與鏈條14嚙合，藉此，各變速齒輪組103的齒輪比採固定方式，因此在進行變速時可精準的依據需求調至所需的變速效果。 When shifting, use the switch 4 to rotate the rotating disc set 101. At this time, the chain 14 that originally meshed with the shift gear set 103 will disengage. Because the switch 4 can be adjusted in mode 1, mode 2, mode 3 and mode 4. Therefore, in the case of four sets of transmission gear sets 103, every time you turn the disc set 101 is a quarter of rotation. Therefore, the disengaged transmission gear set 103 will immediately connect the selected transmission gear set 103 to The chain 14 is meshed, whereby the gear ratio of each transmission gear set 103 adopts a fixed manner, so that the desired transmission effect can be accurately adjusted according to requirements when the transmission is performed.

值得一提的是，在第一轉動盤1010及第二轉動盤1012之間，樞設有自由齒輪6，其中各自由齒輪6分別位於各動力輸出齒輪1032之間，當轉動轉動盤組101時，鏈條14會與鏈輪1032a脫離，此時為了避免鏈條14與其他鏈輪1032a在旋轉中產生頓挫感甚至損壞，因此鏈條14會與鏈輪1032a後，鏈條14會與自由齒輪6嚙合，由於自由齒輪6不受任何外力影響，因此可自由的轉動，因此能讓鏈條14在與鏈輪1032a銜接前保持接合狀態，以降低上述的頓挫感，甚至是結構性的破壞。 It is worth mentioning that between the first rotating disk 1010 and the second rotating disk 1012, a free gear 6 is pivoted, and each of the gears 6 is located between the power output gears 1032. When the rotating disk group 101 is rotated , The chain 14 will be separated from the sprocket 1032a. At this time, in order to prevent the chain 14 and other sprocket 1032a from being frustrated or even damaged during rotation, the chain 14 will mesh with the free gear 6 after the chain 14 and the sprocket 1032a. The free gear 6 is not affected by any external force, so it can rotate freely, so that the chain 14 can be kept engaged before the sprocket 1032a is engaged, so as to reduce the above-mentioned frustration and even structural damage.

再一併請參考圖5及圖6所示，為本創作裝設於自行車二踏板位置之使用狀態示意圖及裝設於自行車的二踏板位置以及後輪位置之使用狀態示意圖。其中圖5同時參考圖1及圖2可知，本創作的變速裝置1直接安裝於自行車2中的二踏板20上與轉動盤組101同軸設置(而所謂同軸則由傳動軸3穿設固定)，以及後輪22位置則裝設一多齒輪24，在前述中的鏈條14(為結構清楚呈現，以線條取代實際結構)會嚙合多齒輪24以及分別與各惰輪12及其中之一變速齒輪組103中的動力輸出齒輪1032嚙合，透過鏈條14帶動必傳遞動能，因鏈條14在旋轉移動時，鏈條14位於變速輪組10的同一平面上，鏈條14不會偏擺至不同位置，避免傳統因變速切換時所造成的鏈條脫離風險，更不同的是，各變速齒輪組103的齒輪比採固定方式，因此在進行變速時可精準的依據需求調至所需的變速效果。 Please also refer to Figure 5 and Figure 6, which are installed on the second pedal of the bicycle for this creation Schematic diagram of the position of use and the position of the two pedals and rear wheel of the bicycle. 5, referring to FIGS. 1 and 2 at the same time, it can be seen that the transmission device 1 of the present creation is directly installed on the two pedals 20 of the bicycle 2 and is arranged coaxially with the rotating disc group 101 (and the so-called coaxial is fixed by the transmission shaft 3). And the position of the rear wheel 22 is equipped with a multi-gear 24. The aforementioned chain 14 (for a clear structure, instead of the actual structure) will mesh with the multi-gear 24 and each idler 12 and one of the transmission gear sets. The power output gear 1032 in 103 meshes, and the kinetic energy must be transmitted through the chain 14 drive. When the chain 14 is rotating and moving, the chain 14 is located on the same plane of the transmission wheel set 10, and the chain 14 will not deflect to different positions, avoiding traditional factors. The risk of chain disengagement caused by shifting is more different in that the gear ratio of each shifting gear set 103 is fixed, so that the desired shifting effect can be accurately adjusted according to requirements when shifting.

於圖6同時參考圖1及圖2則可了解，將本創作的變速裝置1直接安裝於自行車2中的二踏板20位置以及自行車2的後輪22上，由於單一變速裝置1可設定多種固定的齒比變速模式，當自行車2安裝兩組變速裝置1時，其齒比變速的模式變化則更多種，即便可有多種的模式變化，在前述中位於自行車2中的二踏板20位置以及自行車2的後輪22上的變速裝置1是透過鏈條14傳遞動能，而鏈條14會嚙合於變速裝置1上的各惰輪及其中之一變速齒輪組103中的動力輸出齒輪1032，由於本創作的變速裝置1可讓鏈條14在旋轉移動時位於同一平面上，鏈條14不會偏擺至不同位置，因此可避免傳統因變速切換時所造成的鏈條脫離風險，更重要的是各變速齒輪組103的齒輪比採固定方式，因此在進行變速時可精準的依據需求調至所需的變速效果。 Referring to Fig. 1 and Fig. 2 at the same time in Fig. 6, it can be understood that the transmission device 1 of the present creation is directly installed on the position of the two pedals 20 of the bicycle 2 and the rear wheel 22 of the bicycle 2, because a single transmission device 1 can be set to a variety of fixed When the bicycle 2 is equipped with two sets of transmission devices 1, the gear ratio transmission mode changes more, even if there are multiple mode changes, the two pedal 20 positions in the bicycle 2 and The transmission device 1 on the rear wheel 22 of the bicycle 2 transmits kinetic energy through the chain 14, and the chain 14 will mesh with the idlers on the transmission device 1 and the power output gear 1032 in one of the transmission gear sets 103. Because of this creation The speed change device 1 can make the chain 14 lie on the same plane when rotating and move, and the chain 14 will not deflect to different positions, so it can avoid the risk of chain separation caused by the traditional speed change, and more importantly, each speed change gear set The gear ratio of the 103 is fixed, so it can be accurately adjusted to the required speed effect according to the demand when the speed is changed.

上述實施例僅為例示性說明本創作的原理及其功效，而非用於限制本創作。任何熟悉此項技藝的人士均可在不違背本創作的精神及範疇下，對上述實施例進行修改。因此本創作的權利保護範圍，應如後述申請專利範圍所列。 The above-mentioned embodiments are only illustrative to illustrate the principle and effect of the creation, rather than using To limit this creation. Anyone familiar with this technique can modify the above-mentioned embodiment without departing from the spirit and scope of this creation. Therefore, the scope of protection of the rights of this creation should be listed in the scope of patent application described later.

10:變速輪組 10: Variable speed wheels

100:固定盤體 100: fixed plate

1010:第一轉動盤 1010: The first rotating disc

102:主動齒輪 102: driving gear

103:變速齒輪組 103: Variable speed gear set

1030:變速齒輪 1030: shift gear

1032:動力輸出齒輪 1032: PTO gear

1032a:鏈輪 1032a: Sprocket

1032b:連動齒輪 1032b: Linkage gear

12:惰輪 12: Idler

14:鏈條 14: chain

3:傳動軸 3: drive shaft

6:自由齒輪 6: free gear

Claims

一種自行車之變速裝置，該變速裝置裝設於該自行車，其包括： A speed change device for a bicycle, the speed change device is installed on the bicycle, and includes:

一變速輪組，其包含：一固定盤體、一樞設於該固定盤體之轉動盤組、一設置於該轉動盤組中間處之主動齒輪及複數分別樞設於該轉動盤組且齒輪比不同之變速齒輪組，其中各該變速齒輪組包含一嚙合於該主動齒輪之變速齒輪及一嚙合於該變速齒輪之動力輸出齒輪； A variable speed wheel set, comprising: a fixed disk body, a rotating disk set pivoted on the fixed disk body, a driving gear arranged in the middle of the rotating disk set, and plural gears respectively pivoted on the rotating disk set and gears Transmission gear sets with different ratios, wherein each transmission gear set includes a transmission gear meshing with the driving gear and a power output gear meshing with the transmission gear;

複數惰輪，各該惰輪樞設於該固定盤體；及 A plurality of idlers, each of the idlers is pivoted on the fixed plate; and

一鏈條，其分別與各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合。 A chain is meshed with each of the idler gears and one of the power output gears in the transmission gear set.

如申請專利範圍第1項所述之自行車之變速裝置，其中該轉動盤組包括一樞設於該固定盤體之第一轉動盤、一對應該第一轉動盤設置且由一傳動軸穿設以連動之第二轉動盤。 As stated in the first item of the scope of patent application, the speed change device for a bicycle, wherein the rotating disc group includes a first rotating disc pivoted on the fixed disc body, arranged corresponding to the first rotating disc and passing through a transmission shaft With the second rotating disc that is linked.

如申請專利範圍第1項所述之自行車之變速裝置，其中該動力輸出齒輪包括：一與該鏈條嚙合之鏈輪及一設置於該鏈輪一側且與該變速齒輪嚙合之連動齒輪。 As described in the first item of the patent application, the power output gear includes: a sprocket meshing with the chain and a linkage gear arranged on one side of the sprocket and meshing with the shift gear.

如申請專利範圍第3項所述之自行車之變速裝置，其中各該鏈輪的齒比分別為1，1.5，2.3及3.5，各該變速齒輪的齒比分別為1，1.1，1.2，1.3。 For example, in the bicycle gearbox described in item 3 of the scope of patent application, the gear ratios of each sprocket are 1, 1.5, 2.3, and 3.5 respectively, and the gear ratios of each transmission gear are 1, 1.1, 1.2, 1.3, respectively.

如申請專利範圍第1項所述之自行車之變速裝置，其中各該動力輸出齒輪與該主動齒輪為同向旋轉，各該變速齒輪與該主動齒輪為不同向旋轉。 As described in the first item of the scope of patent application, in the bicycle transmission device, each of the power output gear and the driving gear rotate in the same direction, and each of the transmission gear and the driving gear rotate in different directions.

如申請專利範圍第1項所述之自行車之變速裝置，更包括：一切換器，其連接該轉動盤組，用以轉動該轉動盤組以選擇其中之一該變速齒輪組嚙合於該鏈條，以改變該鏈條移動的速度。 For example, the bicycle gear shifting device described in item 1 of the scope of patent application further includes: a switch connected to the rotating disk set for rotating the rotating disk set to select one of the shifting gear sets to mesh with the chain, To change the speed of the chain movement.

如申請專利範圍第1項所述之自行車之變速裝置，其中該自行車中的二踏板，與該轉動盤組同軸設置；一多齒輪，設置於一後輪上，嚙合該鏈條；以及一切換器，其連接該轉動盤組，用以轉動該轉動盤組以選擇其中之一該變速齒輪組嚙合於該鏈條，以改變該鏈條移動的速度。 The gear shifting device for a bicycle as described in item 1 of the scope of patent application, wherein two pedals in the bicycle are arranged coaxially with the rotating disc group; a multi-gear is arranged on a rear wheel to engage the chain; and a switch , Which is connected to the rotating disk set for rotating the rotating disk set to select one of the transmission gear sets to engage with the chain to change the speed of the chain movement.

如申請專利範圍第1項所述之自行車之變速裝置，其中該自行車中的二踏板與一後輪分別樞接該轉動盤組且同軸設置，該鏈條分別嚙合於位在各該踏板處的各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合，以及位於該後輪處的各該惰輪及其中之一該變速齒輪組中的該動力輸出齒輪嚙合。 As described in the first item of the scope of the patent application, the two pedals and a rear wheel in the bicycle are pivotally connected to the rotating disc assembly and arranged coaxially, and the chain is respectively engaged with each of the pedals. The idler gear and one of the power output gears in the transmission gear set mesh, and each of the idlers located at the rear wheel and one of the power output gears in the transmission gear set mesh.

如申請專利範圍第1項所述之自行車之變速裝置，更包括一樞設於該固定盤體之張力調整件，該張力調整件一端設置一與該鏈條嚙合之張力齒輪。 As described in the first item of the scope of patent application, the bicycle gear shifting device further includes a tension adjusting member pivoted on the fixed disk body, and one end of the tension adjusting member is provided with a tension gear meshing with the chain.

如申請專利範圍第1項所述之自行車之變速裝置，更包括複數自由齒輪，其樞設於該第一轉動盤及該第二轉動盤之間，其中各該自由齒輪分別位於各該動力輸出齒輪之間。 For example, the bicycle gear shifting device described in item 1 of the scope of patent application further includes a plurality of free gears, which are pivoted between the first rotating disc and the second rotating disc, wherein each of the free gears is located at each of the power output Between gears.