PEDALING MOTION MEASURING DEVICE AND PEDALING MOTION SENSOR DEVICE
First Claim
1. A pedaling motion measuring device comprising:
- a measurement body unit that has second sensor units arranged at a right and left pair of crank arms of a bicycle provided with a crank member having the right and left pair of crank arms connected by a hanger shaft and pedals, the second sensor units sensing magnitude and direction of a force applied to each of the right and left crank arms;
a second work calculation unit that calculates user'"'"'s work provided to the crank member by the user, based on the magnitude and direction of the force applied to each of the right and left crank arms and sensed by the second sensor units.
1 Assignment
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Accused Products
Abstract
The inventive pedaling motion measuring device includes: a measurement body unit having a first sensor unit for sensing the number of rotation of a wheel by sensing the motion of the wheel of a bicycle, and second sensor units arranged at right and left crank arms for sensing magnitude and direction of a force applied to each of the right and left crank arms. The first work calculation unit calculates work performed by the bicycle based on the number of rotation of the wheel sensed by the first sensor unit. The second work calculation unit calculates work provided to the crank member by the user within a prescribed time, based on the magnitude and direction of the force applied to each of the right and left crank arms and sensed by the second sensor units. The efficiency calculation unit calculates the efficiency of the bicycle.
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Citations
17 Claims
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1. A pedaling motion measuring device comprising:
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a measurement body unit that has second sensor units arranged at a right and left pair of crank arms of a bicycle provided with a crank member having the right and left pair of crank arms connected by a hanger shaft and pedals, the second sensor units sensing magnitude and direction of a force applied to each of the right and left crank arms; a second work calculation unit that calculates user'"'"'s work provided to the crank member by the user, based on the magnitude and direction of the force applied to each of the right and left crank arms and sensed by the second sensor units. - View Dependent Claims (3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17)
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2. (canceled)
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4. (canceled)
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14. A pedaling motion sensor device, comprising:
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an angle sensor that measures angle positions of crank arms of a crank member being rotated by an operation of a user; a sensor unit that is provided with a plurality of force sensors arranged radially about a rotation center of a hanger shaft between the right and left crank arms and the hanger shaft; and a vector calculation unit that calculates magnitude and direction of a force applied to the crank member by the operation of the user, by associating positional information measured by the angle sensor and an output of each of the force sensors of the sensor unit with each other.
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Specification