BICYCLE MOTION SENSING ARRANGEMENT

• US 20070209882A1
• Filed: 05/16/2007
• Published: 09/13/2007
• Est. Priority Date: 06/02/2005
• Status: Active Grant

• Current Assignee: Shimano Inc
• Original Assignee: Shimano Inc
• Inventors: Watari, Etsuyoshi
• Granted Patent: US 7,438,159 B2
• Time in Patent Office: Days
• US Class Current: 188/1.11R
• CPC Class Codes: B62J 45/423 on or besides the wheel
• CPC Class Codes: B62J 50/20 Information-providing devices
• CPC Class Codes: G01P 3/487 delivered by rotating magnets

Abstract

A bicycle motion sensing arrangement is provided has a bicycle wheel, a bicycle brake and a sensor. The bicycle wheel includes an air valve stem and a magnet mounted to the air valve stem. The bicycle brake is configured to be mounted to a bicycle frame. The sensor is fixedly attached to the bicycle brake at a location to detect rotational behavior of a bicycle wheel by sensing the magnet mounted to the air valve stem.

Claims

1. A bicycle motion sensing arrangement comprising:

a bicycle wheel including an air valve stem and a magnet mounted to the air valve stem;

a bicycle brake includes a pair of bicycle brake arms and a pair of a brake shoes with one of the brake shoes fixedly coupled each of the bicycle brake arms, each of the brake shoes having a brake pad holder with the sensor being fixedly attached to one of the brake pad holders; and

a sensor fixedly attached to the bicycle brake at a location to detect rotational behavior of the bicycle wheel by sensing the magnet mounted to the air valve stem.

2. The bicycle motion sensing arrangement according to claim 1, wherein

the air valve stem includes a groove with the magnet disposed in the groove of the air valve stem.

3. The bicycle motion sensing arrangement according to claim 2, wherein

the magnet includes a generally ring-shaped portion.

4. The bicycle motion sensing arrangement according to claim 3, wherein

the generally ring-shaped portion is a split ring.

5. The bicycle motion sensing arrangement according to claim 3, wherein

the generally ring-shaped portion is a continuous ring.

6. The bicycle motion sensing arrangement according to claim 1, further comprising

a bicycle computer unit electrically coupled to the sensor.

7. The bicycle motion sensing arrangement according to claim 1, wherein

the sensor is disposed along a longitudinal edge of the brake pad holder in which the sensor is attached.