| 摘要 |
A seat structure of carboard and the like is illustrated wherein a seat portion and a back portion as well as flaps provided for interconnecting the seat and the back are formed from a single blank providing a foldable seat for use upon bleachers and the like as when attending sporting events. The flaps are insertable within a pair of inwardly converging slots carried in the seat portion to resist the force exerted by a user leaning back.
|
