Abstract: The present invention relates to the field of hinges, and specifically, to seat hinges of the type used for foldable boat seats. A hinge including two seat cushion supporting members and a back plate is taught. One supporting member has a peripheral recess facing outwardly relative to a pivot pin and forms a generally u-shaped area. Laterally spaced-apart abutment surfaces extend angularly from the u-shaped area. The other supporting member is provided with an upstanding protuberance which cooperates with the abutments to limit the hinge between its fully closed and fully opened positions.

Abstract: The present invention relates to the field of hinges, and specifically, to seat hinges of the type used for foldable boat seats. A hinge including two seat cushion supporting members and a back plate is taught. One supporting member has a pair of acruate channels formed about a central pivot through which fasteners pass. The arcuate channels are concealed between the other supporting member and back plate and limit the hinge between its fully closed and fully opened positions.

Abstract: A seat back hinge for a seat on a fishing boat in which the hinge pivot has a generally circular outer pivot wall on one section of the hinge and a generally circular inner pivot wall on the other portion or section of the hinge. The inner wall is of a size that allows it to fit closely inside the outer wall. The inner wall is provided with ears that project at right angles to the top of the inner wall and the outer wall is provided with relieved sections or bays that allow the ears to pass through the outer wall in only one orientation of the two sections of the hinge. Once the seat has been assembled the movement of the two sections of the hinge are limited in such a way so that it is impossible for the ears on the inner wall to be removed back through the relieved sections of the outer wall. Concentric shield portions keep fingers out of the hinge. Integral stops limit movement and an integral leaf spring catches a detent to lock the hinge in one position.