Lifting and folding device for running exercise machine
First Claim
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1. A lifting and folding device for a running exercise machine comprising an ascending/folding device and an interacting device;
- said ascending/folding device comprising a pair of movable arms and a pair of restrictive arms pivotally connected to two sides below a front end of an exercise platform;
said pair of restrictive arms each having one end pivotally connected to a respective inner side of a base;
said pair of movable arms each having a front wheel pivotally installed at one end thereof;
a first shaft being rigidly installed between said pair of movable arms;
a second shaft pivotally connecting to centers of said front wheels and coupled to a sleeve barrel of a driving device, thereby said second shaft moving synchronically with the movement of the said sleeve barrel;
said sleeve barrel screwed onto a screw bolt at one end;
said driving device having one end pivotally connected to said base, driving said screw bolt to rotate axially in either clockwise or counter-clockwise direction by means of a motor and a gear set, so as to accomplish the function of moving said sleeve barrel back and forth;
characterized in that;
said interacting device comprises a pair of positioning wheels installed pivotally on each of corresponding sides near a middle part under said exercise platform;
a front link and a rear link pivotally connected to two ends about a pivot of said positioning wheel;
another end of said front link without being connected to said positioning wheel is pivotally connected to said first shaft;
another end of said rear link without being connected to said positioning wheel is pivotally connected to an shaft connecting a pair of rear supporting arms installed on two corresponding walls near the rear end of said exercise platform;
thereby, as said ascending/folding device is driven by said driving device, said interacting device is put in motion synchronically, providing an adjustment of said exercise platform to an uphill or downhill configuration.
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Abstract
A lifting and folding device for a running exercise machine comprises an ascending/folding device and an interacting device installed between a base and an exercise platform. By adjusting the ascending/folding device the interacting device is put in a synchronic motion, so as to achieve the effect of adjusting the exercise platform to an uphill, a horizontal or a downhill configuration. Further, the ascending/folding device has a driving device capable of automatically ascending and folding the running exercise machine.
39 Citations
3 Claims
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1. A lifting and folding device for a running exercise machine comprising an ascending/folding device and an interacting device;
- said ascending/folding device comprising a pair of movable arms and a pair of restrictive arms pivotally connected to two sides below a front end of an exercise platform;
said pair of restrictive arms each having one end pivotally connected to a respective inner side of a base;
said pair of movable arms each having a front wheel pivotally installed at one end thereof;
a first shaft being rigidly installed between said pair of movable arms;
a second shaft pivotally connecting to centers of said front wheels and coupled to a sleeve barrel of a driving device, thereby said second shaft moving synchronically with the movement of the said sleeve barrel;
said sleeve barrel screwed onto a screw bolt at one end;
said driving device having one end pivotally connected to said base, driving said screw bolt to rotate axially in either clockwise or counter-clockwise direction by means of a motor and a gear set, so as to accomplish the function of moving said sleeve barrel back and forth;
characterized in that;said interacting device comprises a pair of positioning wheels installed pivotally on each of corresponding sides near a middle part under said exercise platform;
a front link and a rear link pivotally connected to two ends about a pivot of said positioning wheel;
another end of said front link without being connected to said positioning wheel is pivotally connected to said first shaft;
another end of said rear link without being connected to said positioning wheel is pivotally connected to an shaft connecting a pair of rear supporting arms installed on two corresponding walls near the rear end of said exercise platform;
thereby, as said ascending/folding device is driven by said driving device, said interacting device is put in motion synchronically, providing an adjustment of said exercise platform to an uphill or downhill configuration.- View Dependent Claims (2, 3)
- said ascending/folding device comprising a pair of movable arms and a pair of restrictive arms pivotally connected to two sides below a front end of an exercise platform;
Specification