Twist handlebar for controlling the derailleur of a bicyle

Details Twist handlebar for controlling the derailleur of a bicyle Twist handlebar for controlling the derailleur of a bicyle

1998-09-25

2000-02-08

Battista, Mary Ann

Machine element or mechanism

Control lever and linkage systems

Hand operated

74489, 7447328, B62K 2304, B62M 2504

Patent

active

060216883

ABSTRACT:
The handlebar includes a base seat connected to a headset of the bicycle having a circular housing for receiving a displacement device and a tubular projection. The displacement device is composed of a tension ring rotatably engaged onto the tubular projection and has a retaining space for anchoring the large diameter end of a cable and an L-shaped slit for securing a spring plate, an arcuate plate anchored into a pair of slit abutting the side wall of the housing having a plurality of positioning slots engageable with an arcuate end of the spring plate. A handlebar rotatably coupling with the base seat including a pair of actuator plates for respectively actuating the tension ring and the spring plate to obtain the shifting of the spring plate on the positioning slots to adjust the speed for the derailleur.

REFERENCES:
patent: 5524501 (1996-06-01), Patterson et al.
patent: 5615580 (1997-04-01), Chen et al.
patent: 5666859 (1997-09-01), Arbeiter et al.
patent: 5676020 (1997-10-01), Jordan et al.

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