Abstract: A vehicle seat is provided with a plate member attached to the back of the seat back. The plate member is configured by a core plate and a cover that covers the core plate, the plate member is sewed together with a cover of the back of the seat back, and a sewed part of the cover of the plate member and the cover of the seat back functions as a turning axis of the plate member. The plate member is turned an unfolded state covering concave clearance formed between the back directed upward of the seat back and a floor surface on the back side by pushing down the seat back forward, and the plate member is turned a housed state in which the plate member is piled on the back of the seat back by raising the seat back backward.

Abstract: A mailbox stand comprising a vertical support sleeve; a vertical extension shaft rotatably and vertically adjustably mounted within and extending vertically from the upper opening of the bore of the vertical support sleeve; a support arm pivotally attached to the upper end of the vertical extension shaft; a mailbox attachment bracket fixedly attached to the support arm; a first breakaway plate fixedly attached to the lower end of the vertical support sleeve; a second breakaway plate fixedly attached to the lower surface of the first breakaway plate by means of threaded bolts; and a breakaway plate support shaft fixedly attached to and extending downward from the lower surface of the second breakaway plate.