JPH01141192U - - Google Patents
Info
- Publication number
- JPH01141192U JPH01141192U JP3919588U JP3919588U JPH01141192U JP H01141192 U JPH01141192 U JP H01141192U JP 3919588 U JP3919588 U JP 3919588U JP 3919588 U JP3919588 U JP 3919588U JP H01141192 U JPH01141192 U JP H01141192U
- Authority
- JP
- Japan
- Prior art keywords
- chain guide
- chain
- speed position
- bicycle
- pivot shaft
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
第１図は本考案フロントデイレーラーの一実施
例を示す側面図、第２図は要部のみの底面図、第
３図は正面図、第４図は要部のみの拡大断面図、
第５図は作動状態を示す説明図である。
１……固定部材、２……チエンガイド、３……
枢支軸、４，５……リンク部材、８……チエンガ
ード、Ａ……リンク機構。
Fig. 1 is a side view showing one embodiment of the front derailleur of the present invention, Fig. 2 is a bottom view of only the main parts, Fig. 3 is a front view, and Fig. 4 is an enlarged sectional view of only the main parts.
FIG. 5 is an explanatory diagram showing the operating state. 1...Fixing member, 2...Chain guide, 3...
Pivot shaft, 4, 5... link member, 8... chain guard, A... link mechanism.
Claims (1)
ガイド２を枢支軸３を介して前記固定部材１に支
持するリンク部材４，５とから成るリンク機構Ａ
を備え、このリンク機構Ａの変形で前記チエンガ
イド２を高速位置と低速位置とに変位させる如く
成したフロントデイレーラーにおいて、前記チエ
ンガイド２に、該チエンガイド２のチエン進行側
前方に延びるチエンガード８を前記枢支軸３の軸
線と上下方向に直交する縦軸周りに枢支すると共
に、前記チエンガイド２の低速位置から高速位置
への変位時、前記チエンガード８を前記チエンガ
イド２と反対方向に変位させる強制移動機構を設
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 link mechanism A consisting of a fixed member 1, a chain guide 2, and link members 4 and 5 that support the chain guide 2 on the fixed member 1 via a pivot shaft 3.
In the front derailleur, which is configured to displace the chain guide 2 between a high speed position and a low speed position by deformation of the link mechanism A, the chain guide 2 is provided with a chain guard extending forward on the chain advancing side of the chain guide 2. 8 is pivoted around a vertical axis perpendicular to the axis of the pivot shaft 3 in the vertical direction, and when the chain guide 2 is displaced from a low speed position to a high speed position, the chain guard 8 is moved in the opposite direction to the chain guide 2. A front derailleur for a bicycle, characterized by being provided with a forced movement mechanism for displacing the bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3919588U JPH01141192U (en) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3919588U JPH01141192U (en) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141192U true JPH01141192U (en) | 1989-09-27 |
Family
ID=31265708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3919588U Pending JPH01141192U (en) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141192U (en) |
-
1988
- 1988-03-24 JP JP3919588U patent/JPH01141192U/ja active Pending