Ripper point attachment structure and ripper point

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

• a ripper point having a wedge shape extending from a distal end to a rear end;
• a ripper shank, the ripper point being attached to the ripper shank;
• a pin member inserted into a first through hole formed in the ripper shank and a second through hole formed in the ripper point;
• and
• a locking member engaging the pin member to prevent the pin member from coming loose,
• the ripper point including
• an opening formed at the rear end,
• an internal space formed from the opening toward the distal end, and
• a concave portion formed in a predetermined range from the rear end to the distal end in a portion of an inner surface forming the internal space,
• the second through hole of the ripper point being disposed on a bottom surface of the concave portion, and
• the locking member being disposed in a space forming the concave portion,
• the locking member engaging the pin member by sliding in a direction toward the pin member or the locking member engaging the pin member by sliding in a direction away from the pin member.