BICYCLE CONTROL SYSTEM

• US 20110320093A1
• Filed: 06/23/2010
• Published: 12/29/2011
• Est. Priority Date: 06/23/2010
• Status: Active Grant

• Current Assignee: Shimano Inc
• Original Assignee: Shimano Inc
• Inventors: KITAMURA, Satoshi
• Granted Patent: US 8,655,561 B2
• Time in Patent Office: Days
• US Class Current: 701/51
• CPC Class Codes: B62K 23/06 Levers
• CPC Class Codes: B62M 25/08 with electrical or fluid transmitting systems

Abstract

A bicycle control system includes at least one user input member, a value generating unit, a wireless transmitter and a wireless receiver. The value generating unit includes a memory component that at least temporarily stores a generated value. The value generating unit updates the generated value that was memorized in accordance with the at least one user input member was operated. The wireless transmitter periodically transmits control signals that are indicative of the generated value. The wireless receiver receives the control signals from the wireless transmitter.

Claims

1. A bicycle control system comprising:

at least one user input member;

a value generating unit includes a memory component which at least temporarily stores a generated value, with the value generating unit updating the generated value that was memorized in accordance with the at least one user input member was operated;

a wireless transmitter that periodically transmits control signals that are indicative of the generated value; and

a wireless receiver that receives the control signals from the wireless transmitter.

2. The bicycle control system according to claim 1, wherein

the value generating unit updates the generated value in response to operation of the at least one user input member.

3. The bicycle control system according to claim 1, wherein

the wireless transmitter is configured to periodically transmit the control signal at least every 100 msec to the wireless receiver.

4. The bicycle control system according to claim 1, wherein

the wireless receiver is electrically connected to a bicycle component that changes between at least two different operating states in response to the control signal received by the wireless receiver.

5. The bicycle control system according to claim 4, wherein

the bicycle component is a gear speed changing device.

6. The bicycle control system according to claim 1, wherein

the value generating unit generates a count value that is selectively increased in response to a first user operation of the at least one user input member, and that is selectively decreased in response to a second user operation of the at least one user input member that is different from the first user operation.

7. The bicycle control system according to claim 1, wherein

the at least one user input member includes a first user input member and a second user input member, with the first user input member increasing the generated value in response to operation of the first user input member, and the second user input member decreasing the generated value in response to operation of the second user input member.

8. The bicycle control system according to claim 7, wherein

the wireless receiver electrically connected to a bicycle component that changes between at least two different operating states in response to the control signal received by the wireless receiver.

9. The bicycle control system according to claim 8, wherein

the bicycle component is a gear speed changing device, with the gear speed changing device and the value generating unit being synchronized such that the generated value corresponds to a current gear position.

10. The bicycle control system according to claim 1, wherein

the value generating unit refrains from counting any user operation while the value generating unit is in an off state.

11. The bicycle control system according to claim 1, wherein

the memory component retains the value that was last generated by the value generating unit while the value generating unit is in an off state.

12. The bicycle control system according to claim 1, wherein

the value generating unit limits the value to a maximum number that corresponds to a prescribed number of gear positions.