FURNITURE MEMBER SEATBACK LINKAGE WITH CAM MEMBER FOR ADJUSTING SEATBACK ANGLE

摘要

A seatback member cam adjustment system includes a seat link having a first bore and a seatback link rotatably connected to the seat link. The seatback link includes an arm portion and a leg portion connected to the arm portion. The leg portion is angularly oriented to the arm portion, and includes a second bore smaller than the first bore. A cam member cam body is positioned in the first bore. A cam body obround cam surface has oppositely facing first and second cam contact points both in direct contact with a first bore inner wall. A cam mount shaft is rotatably supported in the cam member including and extends through the second bore rotatably supporting the cam mount shaft in the second bore. Cam member rotation displaces the cam contact points along the first bore inner wall changing an arm portion orientation angle and a seatback member orientation angle.

主权项

1. A seatback member cam adjustment system, comprising:
a seat link having a first bore; a seatback link rotatably connected using a rotational fastener to the seat link, the seatback link having:
an arm portion; anda leg portion integrally connected to the arm portion, the leg portion oriented at an angle with respect to the arm portion, the leg portion including a second bore smaller than the first bore; a cam member having a cam body positioned in the first bore of the seat link; an obround cam surface of the cam body having oppositely facing first and second cam contact points both in direct contact with a bore inner wall of the first bore; and a cam mount shaft rotatably supported in the cam member including the cam body and extending through the second bore of the seatback link such that the cam mount shaft is rotatably supported in the second bore, rotation of the cam member displacing the first and second cam contact points along the bore inner wall of the first bore thereby changing an orientation angle of the arm portion with respect to the seat link and changing an orientation angle of a furniture member seatback member.