| 摘要 |
#CMT# #/CMT# The bicycle crank arm (16) has crank units (30,34) which are provided with a crankshaft mounting portion and a pedal mounting portion. A sensor supporting element is provided in a cavities (32,36) of the crank units. A power sensor device is supported at the sensor supporting element. The sensor supporting element is deformed under application of pressure on the pedal (18) applied at the pedal mounting portion. The power sensor device is provided with several sense elements with respect to longitudinal axis of the crank units. #CMT# : #/CMT# An independent claim is included for bicycle crank assembly. #CMT#USE : #/CMT# Bicycle crank arm of bicycle crank assembly (claimed) mounted in road bicycle. #CMT#ADVANTAGE : #/CMT# The power sensor device can be mounted efficiently at bicycle crank arm in simple manner. The manufacturing cost of the bicycle crank arm can be reduced with shortened manufacturing time. The elongation in the crank arm can be detected easily. The pressure on the pedal can be measured reliably. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawings show the side view of bicycle, and perspective view of bicycle handlebar. 10 : Bicycle 16 : Bicycle crank arm 18 : Pedal 30,34 : Crank units 32,36 : Cavities. |
