Length adjustment module, inclination adjustment apparatus, and treadmill including the inclination adjustment apparatus

An inclination adjustment apparatus comprising a length adjustment module of which a length is adjustable to adjust an inclination of a track unit,

• wherein the length adjustment module includes:
• a driving motor;
• a first length adjustment member of which a length is adjustable by a driving force of the driving motor;
• a connection belt partially wound around the first length adjustment member;
• and
• a second length adjustment member arranged in parallel to the first length adjustment member, connected to the first length adjustment member by the connection belt, and having a length adjustable by the driving force of the driving motor received through the first length adjustment member and the connection belt, and
• wherein the connection belt includes:
• a first curved section wound around the first length adjustment member;
• a second curved section wound around the second length adjustment member;
• a first linear section configured to connect one end portion of the first curved section to one end portion of the second curved section;
• and
• a second linear section configured to connect another end portion of the first curved section to another end portion of the second curved section and corresponding to the first linear section.

A length adjustment module of which a length is adjustable, the length adjustment module comprising:

• a driving motor;
• a first length adjustment member of which a length is adjustable by a driving force of the driving motor;
• a connection belt partially wound around the first length adjustment member;
• and
• a second length adjustment member arranged in parallel to the first length adjustment member, connected to the first length adjustment member by the connection belt, and having a length adjustable by the driving force of the driving motor received through the first length adjustment member and the connection belt, and
• wherein the connection belt includes:
• a first curved section wound around the first length adjustment member;
• a second curved section wound around the second length adjustment member;
• a first linear section configured to connect one end portion of the first curved section to one end portion of the second curved section;
• and
• a second linear section configured to connect another end portion of the first curved section to another end portion of the second curved section and corresponding to the first linear section.