Ankle muscle resistance-training apparatus

An ankle muscle resistance-training apparatus, comprising:

• a support member;
• a first movement guiding shaft perpendicular to a front-rear direction of the support member and horizontal to a ground;
• an intermediate member rotatably provided on the support member with respect to the first movement guiding shaft;
• a second movement guiding shaft perpendicular to the first movement guiding shaft and inclined to the ground;
• a foot support rotatably provided on the intermediate member with respect to the second movement guiding shaft and inclined with respect to the second movement guiding shaft, and configured to receive a foot of a user;
• a first resistance force application part linked with the first movement guiding shaft and applying a resistance force of adjustable intensity against the active ankle movement of the user made with respect to the first movement guiding shaft in a state in which the foot is placed on the foot support;
• and
• a second resistance force application part linked with the second movement guiding shaft and applying a resistance force of adjustable intensity against the active ankle movement of the user made with respect to the second movement guiding shaft in a state in which the foot is placed on the foot support,
• wherein the second resistance force application part includes:
• a center crank wheel linked with the second movement guiding shaft;
• a first side crank wheel spaced apart from one side of the center crank wheel and rotatably provided on one side of the intermediate member;
• a first horizontal sliding joint slidably provided on the intermediate member to be slid left and right between the center crank wheel and the first side crank wheel;
• a first crank arm linking the center crank wheel with the first horizontal sliding joint;
• a second crank arm linking the first horizontal sliding joint and the first side crank wheel;
• a second brake applying braking force to the first side crank wheel using an electromagnet;
• and
• a second adjustment switch configured to adjust a strength of the second brake.