Out of a series of safety issues, people are in the process of using the roller shutter. There was a case in the United States of children being strangled by the beads around their necks. Later, the US regulations prohibit using the pull beads or pull rope to close the loop. In countries where there is no explicit legal prohibition, window decorators will place a special warning on the lower rail of the roller Roller Shade blinds: keep the roller blinds bead pull up out of reach of children.

How do you solve the power issue when your roller blinds can't use the beads or the cord? People first use the hand crank device to solve the problem, which is to make an external hook in the position of the rolling shutter system's head, and then hang the hand crank handle to the hook, turning the handle to drive the roll tube rotation. In fact, the use of a manual awning with the same store outside. Later, people invented the spring roller shutter, which gave up in the head part to provide power, but in the tail position into the spring, with an up and down stop device designed in the spring. Later, a slow-speed strong spring roller blinds, that is, adding a damping device, so that the rebound of the rolled fabric can be slow speed back to the designated position, was designed. In fact, spring roller blinds are the most suitable for use in the bathroom because they are extremely convenient and quick. Because the manufacturing process is relatively complex, few domestic window treatment companies are now promoting it.

Another unnoticed danger of roller blinds is that the fluttering fabric causes noise and even injury. Above roller blinds, China's Harmony is widely used. The first is the installation of spring roller blinds outside the window, followed by the installation of two sets of button hooks on both sides of the window to secure the lower rail. Because of the large size, the user frequently accidentally touches the front or rear passengers. The other type is built into the car window and has a smaller window. The roller blinds are designed to be installed against the wall, with grooves added to the left and right to secure the lower rail. This roll-up fabric can only be used in the side groove position, which is both practical and safe. The single side of the fabric should be 1mm away from the frame in order to avoid the rolled curtain surface position for a long time as well as side groove friction and hair or tear out the line.

The Harmony's windows are airtight, and the carriage has a fresh air system. The most obvious issue when applying the spring roller shutter with side groove to a residential house is how to open the window. Despite the fact that the lower rail has been secured by the side groove, wind blowing in from outside the window will still blow up the roller shutter fabric or even tear it out.

As a result, the windproof roller blinds appeared. The purpose of windproof roller blinds is to secure the fabric to the side groove. The practice is now divided into two types: the first, in both sides of the side slot into the metal wire device, and the second, in the roll-up fabric to choose a specific spacing welded on thecurtain styles fabric ring. When running, the rings set metal wire, roll-up fabric up and down will not run out of the side slot position. The general window type is not large, so this design is more commonly used in interior decoration. The second type, on both sides of the side slot embedded plastic type strip, and then on both sides of the welded nylon zipper blank, in the rolled fabric. The zipper blank is used to insert the zipper serrated side into the cavity of the plastic type bar. To accommodate the welding position, the curtain roll tube must be cut short. The mounting brackets for the head and tail had to be redesigned as well.