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Foot propulsion assembly

A technology of foot and propulsion mechanism, applied in vehicle parts, crank structure, transportation and packaging, etc., can solve the problems of difficult installation by riders, complicated and expensive measurement system, etc., and achieve the effect of high Q factor

Active Publication Date: 2020-06-19
REACT ACTIVE BIKE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, prior art measurement systems can be complex and expensive, and difficult for riders to install

Method used

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  • Foot propulsion assembly
  • Foot propulsion assembly
  • Foot propulsion assembly

Examples

Experimental program
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Embodiment Construction

[0047] now refer to figure 1 and figure 2 , figure 1 and figure 2 A bicycle pedal assembly 10 constructed and operative in accordance with a non-limiting embodiment of the present invention is shown.

[0048] Bicycle pedal assembly 10 includes crank arm 12, one end of crank arm 12 is pivotally connected to the shaft of chainring 14, and the other end of crank arm 12 is pivotally connected to a first pivot at one end of auxiliary crank arm 18. 16. In this embodiment, a pedal 22 is pivotally connected to a second pivot 20 (opposite the first pivot 16 ) of the secondary crank arm 18 . In other embodiments, the pedal may be rigidly connected to the secondary crank arm.

[0049] exist figure 1 and figure 2 In , the auxiliary crank arm 18 configured to have a smooth surface is shown. However, the secondary crank arm 18 may be configured with one or more recesses which provide further advantages and features, as referenced below Figure 7A and 7D as further described.

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PUM

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Abstract

A bicycle pedal assembly includes a crank arm, one end of which is pivotally connected to a propulsion axle of a bicycle and another end of which is pivotally connected to a first pivot at one end ofan auxiliary crank arm. A pedal is connected to another end of the auxiliary crank arm and a pedal tilt limiter is coupled to the pedal and configured to limit tilt or rotation of the pedal.

Description

technical field [0001] The present invention relates generally to foot-propelled vehicles, such as outdoor and exercise bikes, and in particular to pedal and crank assemblies for bicycles having auxiliary crank arms and other features such as adjustable length, pedal Tilt limiters (which can also act as shock absorbers), measuring devices and other features. Background technique [0002] During running and walking, the human body tends to move its center of mass up and down in an oscillatory motion that is generally perpendicular to the forward direction of the body's motion. Movement to maintain and control the center of mass is achieved primarily by using timed movements of the joints of the legs: hip (pelvis), knee and ankle (foot). The timing of the movement of the legs and leg joints varies according to the nature and speed of the movement. Movements are independent and are not forced on each other mechanically or geometrically. Timing stems from the brain and nervou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M3/00B62M3/04B62M3/06
CPCB62M3/00B62M3/04B62M3/06B62M3/08
Inventor 尼尔·罗特姆
Owner REACT ACTIVE BIKE LTD