Assembling structure of planar elastic body of vehicle seat

An assembling structure for a vehicle seat, comprising:

• an assembly frame that has a frame shape and configured to be detachably attached to a seat main body of the vehicle seat, the seat main body having a backbone frame that has a frame shape;
• a planar elastic body that is configured to elastically support a body of an occupant and is stretched on the assembly frame;
• an elastic latching unit that is configured to be detachably attached to a part of the backbone frame such that the assembly frame is detachably attached to the seat main body, the elastic latching unit formed on a part of a periphery of the assembly frame,
• wherein
• the assembly frame further includes a hook portion,
• the backbone frame further includes a portion to be hooked,
• and wherein
• the planar elastic body is prevented from moving in an out-of-plane direction of the planar elastic body when the hook portion of the assembly frame is hooked on the portion to be hooked of the backbone frame.