Buckle structure for vehicle seat

摘要

A buckle structure of a vehicle seat includes: a seat belt that restrains an occupant; a tongue member that is provided at the seat belt; and a buckle member that is configured to lock the tongue member. The buckle member is disposed at a restraint position of the vehicle seat so that a protruding unit provided at the buckle member protrudes from the restraint position due to a pushing member, and when the tongue member is inserted into the buckle member, the tongue member is locked to the buckle member after the protruding unit returns to the restraint position against pushing forces of the pushing member.