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Viewscape Roller Blinds - What is a Roller Blind?

Description

A roller blind (also known as Holland Blinds) is a form of window covering that is made from a fabric material specially treated or stiffened so that it hangs flat against a window. Roller blinds have simple lines and are easy to install. They are an inexpensive option for decorating rooms, thereby making them a popular choice for window covering. They can come in a variety of fabrics, colours, patterns and textures to blend with the theme of the room. While roller blinds may appear simple because of their sleek construction, they can be dressed up: giving rise to our 4 Finish Options– Plain, Bottom Rail, Fancy and Designer.

Major component description: Roller tube (aluminium), cloth (skin), chain winder or spring mechanism, bottom pocket (bottom rail) and brackets.

How it operates

All Roller Blinds have a rectangular piece of fabric rolled up in an aluminium tube. The tube is attached with brackets on top of the window and operating the blind is by winding and unwinding the tube. The wind up operation can be controlled by:

Viewscape Rollers
  • Chain Winder – This is the most common method of controlling the blind. The tube turns in either direction by pulling on the ball chain. The ball chain turns the pulley, releasing two internal locking springs. This allows the mechanism to turn, thereby rotating the tube. In the stop position, the spring clamps down onto the central spindle, preventing the tube from free wheeling and allowing the blind to stay in position.
  • Spring Operation – As the name suggest, there is a special spring inside the 38 mm aluminium tube. This spring is pre-tensioned, allowing the blind some pull tension at the start of the operation. The blind locks when one of the four brass pawls drops (by gravity) into the locking cavity. Therefore to engage the lock, the blind needs to be held and raised slowly – this gives one of the pawls the opportunity to drop and lock onto the cavity. To operate blind, dis-engage by pulling the blind down a bit and guide the blind to the new postion – the spinning action pushes the 4 pawls outwards, therby preventing the pawls from engaging.
  • Motorised – Tubular geared electric motors are inserted into the 44 mm aluminium tube at either end. The motor runs (around 28 rpm, 240V or battery powered) and turns the tube in either direction. The motor control can be ‘hard-wired’ with an “Up, Down and Stop’ switch or by using a radio frequency remote controller.