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Method and apparatus for measuring and monitoring torque exerted during pedalling of a bicycle or the like equipment

a technology of pedalling and torque, which is applied in the direction of sports equipment, instruments, transportation and packaging, etc., can solve the problems of not very accurate calculation of power, inability to accurately integrate the torque over one crank revolution to calculate the average power, and inability to accurately measure output, which is the total power generated by both legs in the forward direction only

Inactive Publication Date: 2010-04-15
SMITH ROBERT MASTERTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is about an apparatus for measuring the torque exerted on a bicycle by a cyclist during pedaling. The apparatus is particularly suitable for bicycles that have been designed with a specific feature, such as a limited movement of the crank arms or a chain ring spider, to improve performance. The apparatus can measure the torque generated by the bicycle during pedaling, and can also separate the torque generated by each leg of the cyclist. This allows for better detection and synchronization of power in the legs. The invention provides a more accurate and reliable tool for measuring the power and efficiency of a cyclist's pedaling action."

Problems solved by technology

Therefore, integrating the torque over one crank revolution to calculate the average power is not very accurate.
Because power is calculated only once per hub revolution the measurement of output, which is the total power generated by both legs in the forward direction only, is not very accurate.
Therefore the calculated power is not very accurate and only represents power in the forward pedalling direction.

Method used

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  • Method and apparatus for measuring and monitoring torque exerted during pedalling of a bicycle or the like equipment
  • Method and apparatus for measuring and monitoring torque exerted during pedalling of a bicycle or the like equipment
  • Method and apparatus for measuring and monitoring torque exerted during pedalling of a bicycle or the like equipment

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Embodiment Construction

[0035]With reference now to the drawings, there are shown therein arrangements in accordance with the invention, made up of a number of elements assembled together (as described in more detail later), as they would be located on and extend through a bicycle frame (not shown). As previously pointed out, the power measuring device / apparatus in accordance with the present invention is particularly, although not exclusively, suited for use with a power transfer mechanism of the type described and defined in the present applicant's U.S. patent application Ser. No. 11 / 696,516. It should be understood, however, that under no circumstances is the apparatus in accordance with the present invention to be considered limited to use in such a context or apparatus.

[0036]FIG. 1 is an exploded view of an assembly adapted to receive and releasably retain a power measuring device in accordance with the present invention. As illustrated the assembly includes a hollow crank spindle 1, adapted in use to...

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Abstract

An apparatus for measuring and monitoring the torque exerted by a cyclist during pedalling of a human-powered machine, as for example a bicycle, includes a cartridge or the like which is adapted, in use, to be releasably retained within a hollow spindle (101) of the machine, and one or more sensor elements (110, 120, 130) for progressively sensing and generating signals, during rotation of a crankshaft of the machine, which are indicative of the angular position of the or each crank arm (63) of the machine and / or the torque applied thereto. The apparatus allows for measuring and monitoring both in the direction of, and against the direction of, pedalling of the cyclist.

Description

FIELD OF THE INVENTION[0001]The present invention relates, in general terms, to an apparatus for determining / measuring the torque exerted on a body of revolution which is capable of being driven rotatably about an axis of rotation. More particularly, but not exclusively, the invention relates to an apparatus and means for measuring / recording the torque applied by a cyclist during the pedalling of a bicycle, and especially a bicycle of the type the subject of the present applicant's U.S. patent application Ser. No. 11 / 696,516.[0002]What are referred to as power measurement devices, for use on or with a bicycle, typically may fall into one of two basic categories, firstly devices that measures torque and / or angular velocity in driving components of the bicycle, such as for example pedals, crank arms and bottom bracket, and secondly devices that measure torque and angular velocity in driven components of a bicycle, such as for example the chain rings, chain, rear wheel hub and rear whe...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B71/00
CPCG01L3/104B62M6/50B62M3/003B62J45/411
Inventor SMITH, ROBERT MASTERTON
Owner SMITH ROBERT MASTERTON
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