Ripper point attachment structure and ripper point

A ripper point attachment structure in a ripper device, the ripper point attachment structure comprising:

• a ripper shank including a main body portion and a nose portion provided at an end of the main body portion;
• and
• a ripper point including an internal space configured to have the nose portion inserted therein,
• the nose portion including a distal end portion, a proximal end portion contiguous with the main body portion, and a linking portion provided between the distal end portion and the proximal end portion,
• an outer periphery of a cross section obtained by cutting the linking portion along a plane perpendicular to an axis extending in a lengthwise direction of the nose portion being formed in an octagonal shape,
• an outer periphery of a cross section obtained by cutting the proximal end portion along the plane being formed in a rectangular shape,
• an outer periphery of a cross section obtained by cutting the distal end portion along the plane being formed in a rectangular shape, and
• an inner periphery forming the internal space of the ripper point being formed along an outer periphery forming the distal end portion, the linking portion, and the proximal end portion of the nose portion.