Components
- Lath
Steel, aluminium or PVC extrusion, single or multi wall.
- Roller (or roller tube)
Steel, aluminium tube supported at either end by an end plate.
- Shutter box
Formed steel or aluminium extrusions designed to protect the roller assembly.
- Shutter spring
1. Spring wire. Made from the spring wire, it also called torsion spring.
2. Flat spring. Formed by hardened and tempered steel strips in coils. Common steel grades C67, CK67, SAE1070, etc.
- Guide rail
Steel or aluminium to retain the shutter curtain. Rubbing strips to reduce rattle and draught strips can be added.
- Bottom lath
Steel, aluminium or PVC to match the lath. Rubber tubes to reduce draught can be added.
Read more about this topic: Roller Shutter
Famous quotes containing the word components:
“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)