A transmission structure for changing sliding direction of a climber apparatus, capable of enabling an operator to operate the climber apparatus in an upright position, comprising:
- a base;
- a support, which is vertically positioned on the base, the support is positioned between two legs of the operator and has a first side and a second side;
- a first slide rail, which is mounted on the first side;
- a second slide rail, which is mounted on the second side;
- a first transmission unit, including a first drive member, which is mounted to loop the first side, the first drive member includes a first near section and a first far section, the linear directions of motion of which are opposite;
- a second transmission unit, including a second drive member, which is mounted to loop the second side, the second drive member includes a second near section and a second far section, the linear directions of motion of which are opposite, wherein the second transmission unit and the first transmission unit are in synchronized motion;
- a first handle slider, which is fixed to a first handle, the first handle slider sliding in the first slide rail;
- a first footplate slider, which is fixed to a first footplate, the first footplate slider sliding in the first slide rail;
- a second handle slider, which is fixed to a second handle, the second handle slider sliding in the second slide rail;
- a second footplate slider, which is fixed to a second footplate, the second footplate slider sliding in the second slide rail;
- a resistance unit, which is mounted on the base or/and the support, the resistance unit being connected to the first transmission unit or/and the second transmission unit and providing a resistance force to the first transmission unit or/and the second transmission unit;
- the first footplate slider and the second footplate slider are connected, respectively, to any two of the first near section, the first far section, the second near section, and the second far section, at positions having opposite linear directions of motion;
- the first handle slider connects to the first drive member or the second drive member, and is positioned at a first selected position, and the directions of motion of the first selected position and the first footplate slider are opposite, moreover, the second handle slider connects to the first drive member or the second drive member, and is positioned at a third selected position, and the directions of motion of the third selected position and the second footplate slider are opposite;
- or, the first handle slider connects to the first drive member or the second drive member, and is positioned at a second selected position, and the directions of motion of the second selected position and the first footplate slider are the same, moreover, the second handle slider connects to the first drive member or the second drive member, and is positioned at a fourth selected position, and the directions of motion of the fourth selected position and the second footplate slider are the same.