Endless-track traveling apparatus and traveling body

A traveling body comprising:

• a first endless-track traveling apparatus and a second endless-track traveling apparatus that are arranged in parallel with each other in a direction perpendicular to a traveling direction wherein the first endless-track traveling apparatus and the second endless-track traveling apparatus each include,
• a first pulley and a second pulley that are arranged in such a way that the respective center axes thereof are in parallel with each other,
• a motor that drives at least one of the first pulley and the second pulley;
• and
• an endless track that is wound over an outer circumferential surface of the first pulley and an outer circumferential surface of the second pulley, that is driven by the at least one of the pulleys rotated by being driven by the motor, and that travels over the first pulley and the second pulley,
• wherein an outer circumferential surface of the endless track makes contact with a traveling subject so that based on the travel of the endless track, the endless-track traveling apparatus travels on the traveling subject,
• a first planar member that is disposed in a space surrounded by the endless track and has a flat portion that makes contact with an inner circumferential surface of one of two portions of the endless track that face each other and that are arranged between the first pulley and the second pulley,
• a second planar member that is disposed in the space surrounded by the endless track and has a flat portion that makes contact with an inner circumferential surface of the other one of two portions of the endless track existing between the first pulley and the second pulley, that face each other,
• wherein the flat portion of the first planar member is configured to press from the inside and make contact with the inner circumferential surface of the one of two portions of the endless track at a position apart from a virtual straight line, in a direction departing from the space surrounded by the endless track, that connects a vertex, at the side of the one of two portions of the endless track, in the outer circumferential surface of the first pulley and a vertex, at the side of the one of two portions of the endless track, in the outer circumferential surface of the second pulley,
• wherein the flat portion of the second planar member makes contact with the inner circumferential surface of the other one of two portions of the endless track at a position apart from a virtual straight line, in a direction departing from the space surrounded by the endless track, that connects a vertex, at the side of the other one of two portions of the endless track, in the outer circumferential surface of the first pulley and a vertex, at the side of the other one of two portions of the endless track, in the outer circumferential surface of the second pulley, and
• wherein the endless track is configured in such a way that the traveling subject makes contact with at least part of the outer circumferential surface that is opposite the inner circumferential surface in contact with the flat portion of the first planar member, of the one of two portions of the endless track and at least part of the outer circumferential surface that faces the inner circumferential surface, being in contact with the flat portion of the second planar member, of the other one of two portions of the endless track;
• an apparatus mounting unit that is disposed between the first endless-track traveling apparatus and the second endless-track traveling apparatus and is equipped with an inspection apparatus;
• and
• a coupling member that couples the apparatus mounting unit with each one of the first endless-track traveling apparatus and the second endless-track traveling apparatus, wherein each coupling member is configured to bend at a substantially central portion in its longitudinal direction.