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Structure of steppers

Structure of steppers description/claims

This invention is to introduce an improved structure of steppers with capability of adjustable swing curve length.

According to patent publications up to date, all proposed structures of steppers employ permanent fixture between stepping mats and stepping bars despite of differences of design on other parts, which makes swing curve length unadjustable no matter of vertical or horizontal swings. This is so because the stepping mats are permanently fixed with stepping bars, the distance between stepping mats and the pivot will be always the same. Such design has been in market for long, and familiarized by the industry.

Throughout rigorous tests and researches, the inventor finally devised a structural improvement on the steppers that solve the aforementioned problems, and thus hereby file a patent application based on the absolute novelty and capability of industrial application of the invention.

This invention is to introduce a new structure of steppers that enables swing curve length of stepping adjustable.

To reach the aforementioned function, this invention provides a structural improvement for steppers. The stepper comprises a main base, a supporting stand at the front end of the main base, and a cross bar that is positioned on top of and cross over the supporting stand. Two stepping bars are symmetrically installed on both sides of the cross bar, and on the stepping bars set several equally spaced lock holes for fixing stepping mats; Each of the two symmetric stepping mats has a pair of properly spaced connectors at the bottom that fixes stepping mats on two lock holes of stepping bars, which enables swing curve length of the stepping mats adjustable due to multiple choices of lock holes for fixture.

FIG. 1—a breakdown view of the exemplary embodiment for the invention

FIG. 2—a put-up bird view of the exemplary embodiment for the invention

FIG. 3—a partial sectional view of the exemplary embodiment for the invention

FIG. 4—an overview of the swing of stepping mats

FIG. 5—an overview of another structure of the stepping mats

FIG. 6—an overview of a put-up stepper using the stepping mats shown in FIG. 5

Please read the description of an exemplary embodiment as follows with references to FIGS. 1, 2, 3 and 4. This invention provides a structural improvement for steppers. The proposed stepper structure comprises a main base 10, a supporting stand 11 at one end of the main base, and a cross bar 12 that is positioned on top of and cross over the supporting stand, which provides pivots for two stepping bars 20 to rotate; The two stepping bars 20 have fitting tubes 21 in one end that are used to fit stepping bars 20 on the cross bars 12. Two bearings 22 are set between the fitting tubes 21 and the cross bar 12 separately to enable smooth rotation of the stepping bars 20; Two stepping mats 30 are connected to the top of the two stepping bars 20 separately; Two cylinder dampers 40 are connected between the main base 10 and the stepping bars 20 separately to serve as cushions; The features of such structure further comprises: the stepping bars 20 have equally-spaced lock holes 23 in a row on top of it, and each lock hole 23 sets at least one fastening groove 231.

• Provisional Patent
• Utility Patent

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