Fitness equipment and its resistance module

Abstract

A fitness device and its resistance module are disclosed. The resistance module includes a first pulley assembly, a second pulley assembly, a third pulley assembly, and two elastic ropes. The first pulley assembly includes several first left pulleys and several first right pulleys arranged side-by-side on a first axis. The second pulley assembly includes several second left pulleys and several second right pulleys arranged side-by-side on a second axis. The third pulley assembly includes several third left pulleys and several third right pulleys arranged side-by-side on a third axis. The third axis is parallel to the first axis and the second axis. One of the elastic ropes passes over the first left pulleys, the second left pulleys, and the third left pulleys. The other elastic rope passes over the first right pulleys, the second right pulleys, and the third right pulleys. The resistance module is designed as a replaceable, independent module that can be quickly assembled and disassembled.

Claims

1. A resistance module for a fitness device, comprising: a housing; a first pulley assembly mounted on the housing along a first axis, including a plurality of first left pulleys and a plurality of first right pulleys arranged side-by-side along the first axis, the first axis extending in a left-right direction; a second pulley assembly mounted on the housing along a second axis, including a plurality of second left pulleys and a plurality of second right pulleys arranged side-by-side along the second axis, the second axis extending in the left-right direction and parallel to the first axis, the second left pulleys and the second right pulleys being aligned with the first left pulleys and the first right pulleys in the left-right direction; and a third pulley assembly mounted on the housing along a third axis, including a plurality of third left pulleys and a plurality of third right pulleys arranged side-by-side along the third axis, the third axis extending in the left-right direction and parallel to the first axis and the second axis, the third left pulleys and the third right pulleys being aligned with the first left pulleys and the first right pulleys in the left-right direction. Two elastic ropes, one of which passes over the first left pulley, the second left pulley and the third left pulley, and the other elastic rope passes over the first right pulley, the second right pulley and the third right pulley; and two handles, each fixed to one end of the elastic ropes.

2. The resistance module for a fitness machine as described in claim 1, wherein, The third axis is located between the first axis and the second axis in a front-back direction perpendicular to the left-right direction, and the third axis is lower than the first axis and the second axis in a vertical direction perpendicular to the left-right direction and the front-back direction.

3. The resistance module for a fitness machine as described in claim 1, wherein, The dimensions of the first left pulley, the first right pulley, the second left pulley, the second right pulley, the third left pulley, and the third right pulley are substantially the same.

4. The resistance module for a fitness machine as described in claim 1, wherein, The first pulley group includes three first left pulleys and three first right pulleys, the second pulley group includes three second left pulleys and three second right pulleys, and the third pulley group includes three third left pulleys and three third right pulleys. One elastic rope sequentially passes over the first first left pulley, the first second left pulley, the first third left pulley, the second first left pulley, the second second left pulley, the second third left pulley, the third first left pulley, the third second left pulley, and the third third left pulley. Another elastic rope sequentially passes over the first first right pulley, the first second right pulley, the first third right pulley, the second first right pulley, the second second right pulley, the second third right pulley, the third first right pulley, the third second right pulley, and the third third right pulley.

5. The resistance module for a fitness machine as described in claim 4, wherein, The third first left pulley is adjacent to the third first right pulley, the third second left pulley is adjacent to the third second right pulley, and the third third left pulley is adjacent to the third third right pulley.

6. A fitness device with a resistance module, comprising: a main body unit; a pedal unit disposed on the main body unit and including two pedals respectively disposed on both sides of the main body unit in a left-right direction, and a transmission mechanism connecting the pedals and enabling the pedals to produce elliptical motion; and a resistance module as claimed in claim 1, the resistance module being detachably mounted on the main body unit.

7. The fitness device with a resistance module as described in claim 6, wherein, The third axis is located between the first axis and the second axis in a front-back direction perpendicular to the left-right direction, and the third axis is lower than the first axis and the second axis in a vertical direction perpendicular to the left-right direction and the front-back direction.

8. The fitness device with a resistance module as described in claim 6, wherein, The dimensions of the first left pulley, the first right pulley, the second left pulley, the second right pulley, the third left pulley, and the third right pulley are substantially the same.

9. The fitness device with a resistance module as described in claim 6, wherein, The first pulley group includes three first left pulleys and three first right pulleys, the second pulley group includes three second left pulleys and three second right pulleys, and the third pulley group includes three third left pulleys and three third right pulleys. One elastic rope sequentially passes over the first first left pulley, the first second left pulley, the first third left pulley, the second first left pulley, the second second left pulley, the second third left pulley, the third first left pulley, the third second left pulley, and the third third left pulley. Another elastic rope sequentially passes over the first first right pulley, the first second right pulley, the first third right pulley, the second first right pulley, the second second right pulley, the second third right pulley, the third first right pulley, the third second right pulley, and the third third right pulley.

10. The fitness device with a resistance module as described in claim 6, wherein, The housing has two spaced-apart side plates and a baffle connecting the side plates. The side plates and the baffle define an accommodating space. The first pulley group, the second pulley group and the third pulley group are installed in the accommodating space. The baffle has two spaced-apart mounting pieces that can be detachably installed on the main body unit.

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