Chair with a folding backrest and a hinge therefor

Details Chair with a folding backrest and a hinge therefor Chair with a folding backrest and a hinge therefor

A - Human Necessities

47

C

A47C 7/40 (2006.01) A47C 4/04 (2006.01) B63B 29/04 (2006.01)

Patent

CA 2337456

A chair primarily for a fishing boat has a chair seat having a seat base plate for attachment to a swivel support with a seat pad and a seat back having a back plate and a back pad. The back plate is connected to the seat base plate by two hinges which allow folding of the seat back onto the base. In order to accommodate the high forces from an occupant leaning against the seat back while riding over rough water at high speed the hinge includes a spring steel strap fastened to the seat base plate and extending up behind the seat base plate to a top edge above the seat pad which can flex to take up the forces. A hinge plate is attached to the back plate and extends therefrom downwardly into contact with the spring strap connected together by a hinge pin defining a horizontal hinge axis. The hinge plate includes a rear tab extending along a rear of the spring strap for communicating forces from the person leaning backward through the hinge to the flexing of the strap. The pin is held in place within loops at the strap and the hinge plate by a central circlip between two loops of the strap which are aligned with the tab of the hinge plate.

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