Greenhouse sun screen unwound by moving winding roller - has hook-pile fastener strips at edges to seal on corresponding strips on roller guides

摘要

The sunshade (3) for a greenhouse is arranged between four vertical members (1A,B, etc.) of the greenhouse structure. It comprises a screen (3) which can be unwound from a roll (5) against a spring. The screen width equals the space between the first two members (1A,B) and its length can extend to the second pair of members whilst the roll is guided at either end as it is moved by draw cables. The two lateral edges of the screen and the corresponding edges of the gutters (7) are provided with mutually engaging strips of burr hook pile fastener material. A light and airtight connection is obtained when the screen is unwound.