BigPatents India

A seat hinge 401 is attached at one end of a seat 208, a first seat hook 414 is attached at the other end of the seat 208, a second seat hook 415 is attached substantially at the center of the seat 208, and a main locking mechanism 404 and a sub-locking mechanism 405 are connected by a second cable. When locking the main locking mechanism, the sub-locking mechanism may also be brought into the locked state in conjunction therewith, and thus the seat can be locked easily and reliably. In addition, by providing a seat hook for the main locking mechanism may be positioned at the farthest point form the hinge attached at one end of the seat. Therefore, when locking the main locking mechanism by pressing the end of the seat above the main locking mechanism downward by hand, a downward pressing force required to be exerted on the seat for generating a moment about the hinge may be reduced. Drawing: 20 Sheets Total Pages: 79 Fig. 19