Title:
【発明の名称】自転車ギヤの後部ディレイラー
Document Type and Number:
Japanese Patent JP2682843
Kind Code:
B2
Abstract:
A rear derailleur for bicycle gears comprises an upper body which can be fixed to the bicycle frame and a lower body carrying chain transmission member and being movable relative to the upper body to bring the chain into selective engagement with a series of sprockets carried by the hub of the rear wheel of the bicycle. The lower body is connected by an articulated parallelogram joint to an intermediate connecting element which is in turn mounted for sliding on guide member carried by the upper body. Connecting rods are provided for univocally correlating the movements of the intermediate element relative to the upper body with the movements of the lower body relative to the intermediate element. In this way, the resulting movement of the lower body relative to the upper body has both a component along the axis of the hub of the rear wheel of the bicycle, and a component radial to that axis.
Inventors:
Antonio Romano
Application Number:
JP14793788A
Publication Date:
November 26, 1997
Filing Date:
June 15, 1988
Export Citation:
Assignee:
Campagnolo Societa Pell Atchioni
International Classes:
B62M9/124; B62M9/1242; B62M9/1244; B62M9/1246; (IPC1-7): B62M9/12
Domestic Patent References:
| JP5591478A | ||||
| JP5515199U |
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)