JPS641094U - - Google Patents
Info
- Publication number
- JPS641094U JPS641094U JP9310687U JP9310687U JPS641094U JP S641094 U JPS641094 U JP S641094U JP 9310687 U JP9310687 U JP 9310687U JP 9310687 U JP9310687 U JP 9310687U JP S641094 U JPS641094 U JP S641094U
- Authority
- JP
- Japan
- Prior art keywords
- diameter gear
- chain guide
- chain
- movement
- shift plate
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Gear-Shifting Mechanisms (AREA)
Description
第１図は本考案デイレーラーの実施例を示す一
部を断面した側面図、第２図は正面図、第３図及
び第４図は作動状態を示す説明図、第５図は別の
実施例を示す一部省略側面図、第６図及び第７図
はその作動状態を示す説明図である。
２……固定部材、５，６……リンク部材、９…
…チエンガイド、Ａ……リンク機構、１２……伝
動体、２０……シフトプレート。
Fig. 1 is a partially sectional side view showing an embodiment of the derailleur of the present invention, Fig. 2 is a front view, Figs. 3 and 4 are explanatory diagrams showing the operating state, and Fig. 5 is another embodiment. 6 and 7 are explanatory diagrams showing the operating state thereof. 2... Fixed member, 5, 6... Link member, 9...
...Chain guide, A...Link mechanism, 12...Transmission body, 20...Shift plate.
Claims (1)
ンガイド９とから成るリンク機構Ａを備え、該リ
ンク機構Ａの変形で前記チエンガイド９をフロン
トギヤの軸方向に移動させる如く成した自転車用
フロントデイレーラーであつて、前記チエンガイ
ド９に、該チエンガイド９の下方に位置し、小径
ギヤから中径ギヤへのチエンの掛換えを担持する
中速掛換用シフトプレート２０を変速位置と該変
速位置に対し離反する退避位置とに変位可能に枢
着する一方、前記リンク部材５又は６の動きを前
記シフトプレート２０に伝える伝動体１２を備え
、かつ、内径ギヤから大径ギヤへのチエン掛換時
、前記シフトプレート２０を退避位置に移動可能
とする制御手段を設けると共に、前記伝動体１２
に、前記チエンガイド９と当接して該チエンガイ
ド９の大径ギヤ方向への移動範囲を規制する規制
部１２ａを設けたことを特徴とする自転車用フロ
ントデイレーラー。 A bicycle comprising a link mechanism A consisting of a fixed member 2, a pair of link members 5 and 6, and a chain guide 9, and configured such that deformation of the link mechanism A moves the chain guide 9 in the axial direction of the front gear. In the front derailleur, a shift plate 20 for medium speed change, which is located below the chain guide 9 and is responsible for changing the chain from a small diameter gear to a medium diameter gear, is set at a shifting position. It is provided with a transmission body 12 which is pivotally connected to be movable to a retracted position away from the shift position and which transmits the movement of the link member 5 or 6 to the shift plate 20, and which transfers the movement from the inner diameter gear to the large diameter gear. A control means is provided that allows the shift plate 20 to be moved to the retracted position when replacing the chain, and the transmission body 12
A front derailleur for a bicycle, characterized in that a regulating part 12a is provided which contacts the chain guide 9 and regulates the range of movement of the chain guide 9 in the direction of the large diameter gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9310687U JPS641094U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9310687U JPS641094U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS641094U true JPS641094U (en) | 1989-01-06 |
Family
ID=30955402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9310687U Pending JPS641094U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS641094U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150884A (en) * | 1984-12-25 | 1986-07-09 | マエダ工業株式会社 | Front derailer for bicycle |
| JPS61171682A (en) * | 1985-01-24 | 1986-08-02 | マエダ工業株式会社 | Front derailer for bicycle |
-
1987
- 1987-06-17 JP JP9310687U patent/JPS641094U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150884A (en) * | 1984-12-25 | 1986-07-09 | マエダ工業株式会社 | Front derailer for bicycle |
| JPS61171682A (en) * | 1985-01-24 | 1986-08-02 | マエダ工業株式会社 | Front derailer for bicycle |
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