Electromechanical derailleur

Patent metadata

Field	Value
Publication number	US-12485995-B2
Application number	US-202318345024-A
Country	US
Kind code	B2
Filing date	Jun 30, 2023
Priority date	May 15, 2018
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

An Actuating device for a bicycle is provided. The actuating device may include a static element which is positionally fixed in relation to a bicycle frame, a movable element which is movable in relation to the static element, an electromechanical drive which provides drive force for a movement of the movable element. The electromechanical drive has a motor and a gearing driven by the motor. The gearing may include a first gearing wheel and a second gearing wheel which is in engagement with the first gearing wheel.

First claim

What is claimed is:

1 . An actuating device for a bicycle comprising:
a static element that is arranged positionally fixedly in relation to a bicycle frame; a movable element that is movable in relation to the static element; an operating device for selecting a desired shift stage from a multiplicity of available shift stages, the operating device configured for moving the movable element into a shift position corresponding to the selected shift stage; a vibration sensor for determining a vibration of the actuating device; and a trim device for adjusting the shift positions assigned to the shift stage; wherein the trim device is configured to adjust at least one of the shift positions to correspond to when the vibration of the actuating device is the smallest.

2 . The actuating device of claim 1 , wherein the trim device is configured to adjust the amounts of trim relative to one another for at least two shift stages.

3 . The actuating device of claim 1 , wherein the trim device is configured to, for all shift stages of a series of successive shift stages, adjust the respective shift positions by increasing or decreasing amounts of trim.

4 . An actuating device for a bicycle comprising:
a static element that is arranged positionally fixedly in relation to a bicycle frame; a movable element that is movable in relation to the static element; an electromechanical drive that provides drive force for a movement of the movable element; an electronic control device in which, for a multiplicity of shift stages, in each case for each shift stage, there is stored at least one shift position parameter that corresponds to a shift position of the movable element in the respective shift stage, wherein the control device is configured to, in reaction to a shift stage selection signal that represents a shift stage to be set, activate the electromechanical drive on the basis of the shift position parameter of the shift stage to be set such that the movable element reaches the shift position; and a trim device for changing at least one of the shift position parameters independently of the other shift position parameters at the instigation of a user, wherein the trim device is configured to change at least one of the shift position parameters to correspond to when a vibration of the actuating device is the smallest.

5 . The actuating device of claim 4 , wherein the electronic control device, for each shift stage of the multiplicity of shift stages, stores in each case one standard position parameter that corresponds to a predetermined standard shift position of the movable element, wherein the shift position parameter preferably represents a deviation from the standard position parameter.

6 . The actuating device of claim 4 , further comprising:
an acceleration sensor that provides an item of information relating to a vibration of the actuating device.

7 . The actuating device of claim 4 further comprising program code that can be executed on a portable appliance, wherein the program code is configured to activate the portable appliance to:
receive a user input regarding the selection of a shift stage of the multiplicity of shift stages; and
receive a user input regarding the setting and/or changing of the shift position parameter.

8 . A method for setting an actuating device comprising:
selecting a shift stage; retrieving a stored shift position parameter, that is assigned to a shift position of a movable element of the actuating device in the respective shift stage, from a memory; detecting a vibration of the actuating device; changing the shift position parameter to correspond to when the vibration of the actuating device is the smallest; and storing the changed shift position parameter in the memory.

9 . The method of claim 8 , further comprising:
setting a selected shift stage by means of the actuating device; detecting a functional parameter of the actuating device that represents an accuracy of the shift stage setting; adjusting the shift position parameter so that the functional parameter changes in the direction of an improvement of the accuracy of the shift stage setting; and storing the shift position parameter.

10 . The method of claim 9 , wherein the control device automatically sets shift stages for each of the multiplicity of shift stages by:
setting the actuating device into a first shift stage of a multiplicity of shift stages; setting the position of the movable element to a multiplicity of positions within a predetermined interval around the shift position of the set shift stage, and detecting a vibration of the actuating device for each set position; setting the shift position parameter to a value that corresponds to the position of the movable element at which the smallest vibration has been detected; and setting the actuating device into a further shift stage of the multiplicity of shift stages.

11 . The method of claim 8 , further comprising:
indicating to a user the detected vibration, and wherein changing the shift position parameter to correspond to when the vibration of the actuating device is the smallest includes the user selecting a trim value or the shift position parameter where the detected vibration was the smallest.

Assignees

• Sram De Gmbh

Inventors

• Dueweling Sebastian
• Reinbold Matthias
• Boehm Robert
• Baumann Sven
• Schmelzing Sven

Classifications

• B62M9/123

  changing gears automatically · CPC title

• B62M25/08

  with electrical or fluid transmitting systems · CPC title

• B62M9/122 Primary

  electrically or fluid actuated; Controls thereof · CPC title