Moving length adjustment device of a treading trainer

Abstract

A moving length adjustment device of a treading trainer comprises a treading trainer having two treadles; each treadle indirectly connected to a rotary shaft; the rotary shaft connected to a linkage plate; each linkage plate being formed with a via hole; each linkage plate being indirectly connected to a stand rod; the stand rod being formed with a transversal screw hole; and a T shape linkage having a pin shaft at a front end thereof; each of two lateral sides of the T shape linkage having a respective universal adaptor. Further, the T shape linkage can be replaced by a retaining frame, a guide wheel and a steel rope winding around the guide wheel; and a front end of the steel rope having a pin shaft.

1 . A moving length adjustment device of a treading trainer comprising:
 a treading trainer having two treadles; each treadle indirectly connected to a rotary shaft; the rotary shaft connected to a linkage plate; each linkage plate being formed with a via hole; each linkage plate being indirectly connected to a stand rod; the stand rod being formed with a transversal screw hole; and   a T shape linkage having a pin shaft at a front end thereof; each of two lateral sides of the T shape linkage having a respective universal adaptor; and   wherein in assembly, the pin shaft of the T shape linkage inserts into the screw hole of the stand rod; the universal adaptors of the T shape linkage are connected to the via holes of the linkage plates; a screw rod inserts into the screw hole from the front end thereof.   
     
     
         2 . A moving length adjustment device of a treading trainer comprising:
 a treading trainer having two treadles; each treadle indirectly connected to a rotary shaft; the rotary shaft connected to a linkage plate; each linkage plate being formed with a via hole; each linkage plate being indirectly connected to a stand rod; the stand rod being formed with a transversal screw hole; and   a retaining frame, a guide wheel and a steel rope winding around the guide wheel; a front end of the steel rope having a pin shaft; and   wherein in assembly, the pin shaft of the moving length adjustment device inserts into the screw hole of the stand rod; two ends of the steel rope are engaged to the two via holes of the two linkage plates.