| 摘要 |
A greenhouse having a base and a roof supported by the base and a door assembly comprising a rail 122 detatchably coupled to the roof with a pair of internal channels 210 212; a pair of door flaps 126 are slidably coupled to the rail via the channel and via a plurality of rolling members 324 330 at a top portion of each door flap and located at spaced apart locations along the elongate axis of the channel. Preferably the rolling members are arranged in pairs and may be mounted to connecting links 310 312 attached to the top portion of the door flap, the connecting links preferably being smaller than the combined length of the top portions of the door flaps. The end of the rails may be open to allow the connecting links to pass through and out of the channel. The ends of the rail may be constrained within the margins of the roof. |
