JPS58108992U

JPS58108992U - Bicycle exterior derailleur

Info

Publication number: JPS58108992U
Application number: JP676082U
Authority: JP
Inventors: 山崎　一登; 石橋　康徳
Original assignee: マエダ工業株式会社
Priority date: 1982-01-20
Filing date: 1982-01-20
Publication date: 1983-07-25
Also published as: JPS6217350Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は正面図、第２図
は外リンクを省略して内部構造を示した斜視図、第３図
乃至第５図は作用説明断面図である。１・・・・・・固定部材、５・・・・・・内リンク、６
・・・・・・外リンク、７・・・・・・可動部材、１０
・・・・・・チェノ案内部材、１４・・・・・・滑り子
、１６・・・・・・揺動アーム、１７・・・・・・第１
バネ、１９・・・・・・第２バネ、１６ａ・・・・：・
係合部、Ａ・・・・・・パンタグラフ機構、Ｗ・・・・
・・操作ワイヤ。、第３図− 第４図　゛ −第５図　　　　−”The drawings show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a perspective view showing the internal structure with the outer link omitted, and FIGS. 3 to 5 are sectional views for explaining the operation. 1... Fixed member, 5... Inner link, 6
...Outer link, 7...Movable member, 10
...Cheno guide member, 14...Slider, 16...Swing arm, 17...First
Spring, 19...Second spring, 16a...:.
Engagement part, A... Pantograph mechanism, W...
...Operation wire. , Fig. 3 - Fig. 4 ゛ - Fig. 5 -''

Claims

[Scope of utility model registration request]

(1) Fixed member 1, inner link 5, outer link 6, and movable member 7 are pin-joined in a parallelogram shape. Pantograph mechanism A is deformed by operating the operating wire W and attached to the movable member 7. In the external bicycle transmission configured to be able to move the chino guide member 10 in parallel,
A slider 14 fixed to one end of the operating wire W is attached to the fixing member 1 so as to be movable a certain distance in substantially the same direction as the pulling direction of the operating wire W.
A swinging arm 16 having a retaining portion 16a that can be engaged with the inner link 5 or the outer link 6 is pivotally supported on the fixed member 1, and the swinging arm 16 is always brought close to the inner link 5 or the outer link 6 by a first spring 17. By energizing the operating wire W in the direction
When the swing arm 16 is towed, the swing arm 16 is pushed by the slider 14 and rotates, while the first spring 17
a second spring which has a weaker elastic force and is used to deform and bias the pantograph mechanism A in a direction opposite to the deformation direction of the pantograph mechanism A caused by the rotation of the swing arm 16; 19. An external bicycle transmission characterized by being provided with 19.

(2) The slider 14, the swinging arm 16, and the first spring 17 are biased near the outer link 6. The first spring 17 always urges the swinging arm 16 and the outer link 6 to be close to each other. An external bicycle transmission according to claim 1, which has been registered as a utility model.

(3) The swing arm 16 includes the fixed member 1 and the outer link 6.
The external bicycle transmission according to claim 2, which is pivotally supported using a pin 4 connecting the two parts.

(4) The slider 14, the swing arm 16, and the first spring 17 are provided near the inner link 5, and the first spring 17 is
The bicycle external transmission according to claim 1, wherein the swing arm 16 and the inner link 5 are always energized so as to be close to each other.

(5) The swing arm 16 is pivotally supported using the pin 3 that connects the fixed member 1 and the inner link 5.
The external transmission for a bicycle according to claim 4 of the utility model registration claim.

(6) A utility model in which the engaging portion 16a of the swing arm 16 has a plurality of engaging surfaces 16b that can sequentially lock the deformation of the pantograph mechanism A, corresponding to each shift position of the transmission. An external bicycle transmission according to any one of registered claims 1 to 5.