Plastic shutter and mounting clamp therefor

Claim 1

A plastic shutter construction comprising a panel section including marginal frame sections having a peripheral flange, elongated mounting channel members fixed to a rear surface of said marginal sections and projecting inwardly from the marginal sections toward the building structure to which the shutter is to be fastened, said channel members having a generally rectangular cross section with outturned flanges secured to the marginal sections of the shutter by sonic weldments between abutting surfaces of said flange and said marginal sections including mounting clamps adapted to engage said channel members, said mounting clamps including a web portion and two upstanding leg portions, terminal portions which diverge outwardly from said leg portions, said terminal portions including barbs which extend inwardly into the gap defined by the leg portions for rigidly grasping and securing said clamp to said channel member, and connecting portions hingedly connecting said terminal portions with said leg portions intermediate the width of the terminal portions, said connecting portions having a width less than the width of said legs and the width of said terminal portions to afford outwad displacement of said terminal portions to admit said channel members.