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Electronic servo booster type bicycle variable speed gear and relative method thereof

A technology for assisting bicycles and shifting mechanisms, which is applied to bicycle gear shifting mechanisms, bicycle accessories, vehicle gearboxes, etc., and can solve problems such as setting initial or reference positions.

Inactive Publication Date: 2008-11-26
CAMPAGNOLO SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The problem of setting an initial or reference position also arises in these types of variator

Method used

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  • Electronic servo booster type bicycle variable speed gear and relative method thereof
  • Electronic servo booster type bicycle variable speed gear and relative method thereof
  • Electronic servo booster type bicycle variable speed gear and relative method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0097] Referring to FIG. 1 , a bicycle 1 , in particular a racing car, comprises a frame 2 manufactured in known manner from tubular elements, which frame 2 defines a support structure 3 for a rear wheel 4 and a front fork 5 for a front wheel 6 . The handlebar 70 is a tubular structure and is operatively connected to the front fork 5 .

[0098] In the lower part of the frame 2, the shaft of a pedal or pedal unit 7 of conventional type is supported in order to drive the rear wheel 4 by means of an electronically servo-assisted transmission according to the invention indicated by reference numeral 8 Generally pointed out.

[0099] The speed change mechanism 8 is substantially composed of a rear speed change gear set 9 and a front speed change gear set 10 . The rear derailleur gear set 9 comprises a number of sprockets or pinions 11 (in the example described there are 10 in total but of course 9, 11) of different diameters coaxial with the rear wheel 4 (axis A). or any other nu...

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PUM

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Abstract

This servo assisting method comprises each step of (a) an actuator of the bicycle gear shift is driven to move a chain of the gear shift in a first direction or a second direction opposite to the first direction in the axial direction for a gear shift group including at least two sprockets (207, 211), (b) information of alignment completion is received between the chain and the predetermined sprocket of the gear shift group, and (c) relative relation of 1 vs. 1 is set between a physical position of the actuator and a logic value related to a gear ratio for the predetermined sprocket at step (b).

Description

technical field [0001] The invention relates to an electronic servo-assisted bicycle speed change mechanism and a servo power-assisted method for the bicycle speed change mechanism, as well as a program and a circuit for realizing the method. Background technique [0002] The electronic servo assist bicycle speed change mechanism generally includes: [0003] A rear actuator and a front actuator, each with an electric motor, moves the chain in a first direction or a second direction, along a direction about the axis of the respective variable speed gearset, said variable speed gearset comprising at least two sprockets combined with the hub of the bicycle's rear wheel (the set of sprockets is also called the "pinion" or "serrated wheel" and its chain guide is also called the "rear derailleur" or simply "the derailleur") Or the sprockets combined with the crank center shaft of the bicycle pedal (this set of sprockets is also called "crown gear" or "gear" or "serrated wheel", a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M25/08B62M1/36B62J99/00B62M9/122B62M11/16F16H59/68F16H61/28
CPCF16H2059/6807B62M25/08B62J2099/0026B62J99/00B62M9/122F16H61/2807B62J50/22B62J11/13
Inventor 詹弗兰科·古代尔佐朱塞佩·达尔普拉
Owner CAMPAGNOLO SRL