JPS61117788U - - Google Patents
Info
- Publication number
- JPS61117788U JPS61117788U JP1985001723U JP172385U JPS61117788U JP S61117788 U JPS61117788 U JP S61117788U JP 1985001723 U JP1985001723 U JP 1985001723U JP 172385 U JP172385 U JP 172385U JP S61117788 U JPS61117788 U JP S61117788U
- Authority
- JP
- Japan
- Prior art keywords
- sprocket
- guide plate
- chain
- inner guide
- pressed
- 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.)
- Granted
Links
Description
第１図ないし第４図は本考案の自転車用フロン
トデイレーラの実施例を示し、第１図は全体正面
図、第２図は内ガイドプレートと各スプロケツト
ないしチエンとの関係を示すとともに作用を説明
するための図、第３図は第２図の―線断面図
、第４図は内ガイドプレートの他の態様を示す正
面図、第５図は本考案が基礎とする従来のフロン
トデイレーラの全体正面図、第６図は第５図の
方向矢視図である。
４……制御機構（パンタグラフリンク機構）、
９……内ガイドプレート、１０……外ガイドプレ
ート、Ｓ……スプロケツト、ｓ１……最小径スプ
ロケツト、ｓ２……中間スプロケツト、ｓ３……
最大径スプロケツト、Ｃ……チエン。
Figures 1 to 4 show an embodiment of the bicycle front derailleur of the present invention, with Figure 1 being an overall front view, and Figure 2 showing the relationship between the inner guide plate and each sprocket or chain and their functions. Figure 3 is a sectional view taken along the line -- in Figure 2, Figure 4 is a front view showing another aspect of the inner guide plate, and Figure 5 is a conventional front derailleur on which the present invention is based. FIG. 6 is a front view of the whole body, and FIG. 6 is a view taken in the direction of the arrow in FIG. 4...Control mechanism (pantograph link mechanism),
9...Inner guide plate, 10...Outer guide plate, S...Sprocket, s1...Minimum diameter sprocket, s2...Intermediate sprocket, s3...
Maximum diameter sprocket, C...Chain.
Claims (1)
挟むように対向する内ガイドプレートおよび外ガ
イドプレートを備え、制御機構により前記内ガイ
ドプレートおよび外ガイドプレートを内外方向に
平行移動させるように構成された自転車用フロン
トデイレーラにおいて、内ガイドプレートの、中
間スプロケツトに掛かるチエンをそれより大径の
スプロケツトに掛け換える場合に押す部位Ａを、
最小径スプロケツトに掛かるチエンを中間スプロ
ケツトに掛け換える場合に押す部位Ｂを通り、か
つスプロケツトと同心状の円弧に対して実質的に
半径方向外側に位置させたことを特徴とする、自
転車用フロントデイレーラ。 A bicycle front comprising an inner guide plate and an outer guide plate facing each other so as to sandwich a chain about to be hung on a sprocket, and configured to move the inner guide plate and the outer guide plate in parallel in the outward and outward directions by a control mechanism. In the derailleur, the part A of the inner guide plate that is pressed when changing the chain that hangs over the intermediate sprocket to a sprocket with a larger diameter is
A front day for a bicycle, characterized in that the chain passing through the part B that is pressed when changing the chain applied to the smallest diameter sprocket to the intermediate sprocket is located substantially outside in the radial direction with respect to an arc concentric with the sprocket. Lela.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001723U JPH0237678Y2 (en) | 1985-01-09 | 1985-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001723U JPH0237678Y2 (en) | 1985-01-09 | 1985-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61117788U true JPS61117788U (en) | 1986-07-25 |
| JPH0237678Y2 JPH0237678Y2 (en) | 1990-10-11 |
Family
ID=30474725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985001723U Expired JPH0237678Y2 (en) | 1985-01-09 | 1985-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237678Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370591U (en) * | 1989-11-14 | 1991-07-16 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223038U (en) * | 1975-08-05 | 1977-02-18 | ||
| JPS5931594U (en) * | 1982-08-24 | 1984-02-27 | マエダ工業株式会社 | Bicycle front derailleur |
| JPS60206793A (en) * | 1984-03-29 | 1985-10-18 | 株式会社シマノ | Front derailer for three step gear change |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931594B2 (en) * | 1979-08-10 | 1984-08-02 | 東邦化学工業株式会社 | anti-rust |
-
1985
- 1985-01-09 JP JP1985001723U patent/JPH0237678Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223038U (en) * | 1975-08-05 | 1977-02-18 | ||
| JPS5931594U (en) * | 1982-08-24 | 1984-02-27 | マエダ工業株式会社 | Bicycle front derailleur |
| JPS60206793A (en) * | 1984-03-29 | 1985-10-18 | 株式会社シマノ | Front derailer for three step gear change |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370591U (en) * | 1989-11-14 | 1991-07-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237678Y2 (en) | 1990-10-11 |