Patent ID: 8656637

Claim:
A cold frame, comprising: a plurality of side wall elements having transparent hollow chamber panels; a plurality of uprights formed with lateral flanges; said side wall elements having lateral edge regions formed by said hollow chamber panels, said lateral edge regions having through holes formed therein and abutting said lateral flanges of said uprights; clamping devices disposed to connect said side wall elements with said uprights, said clamping devices including positioning pins formed with heads and projecting out of said through holes in said hollow chamber panels and being rigidly connected to said flanges of said uprights, said clamping devices further including clamping elements abutting against inner sides of said hollow chamber panels forming said edge regions of said side wall elements, said clamping elements being clamped between said hollow chamber panels and said heads of said positioning pins; said positioning pins made in one piece with said flanges of said uprights; and said positioning pins including flat webs projecting beyond the inner sides of said hollow chamber panels.