Mechanism for roller blinds

Roller blinds are a special canvas that is wound on a small shaft. These products are of several types, which allows you to pick them up almost under all styles of interiors. The operation of these systems provides a mechanism for roller blinds. Duration and reliability of operation depends on its quality.

A feature of roller blinds is that their height is adjusted by winding. In this case, the canvas can move in several ways:

1. Direct. The fabric falls off remotely from the glass, closing the roll.
2. Reverse. Cloth when lowering passes as close as possible to the glass.

Curtains can also be supplemented with special guides, which allow to simplify the lowering of the canvas. The mechanism for roller blinds consists of several structural parts:

1. Round shaft. The diameter of this device depends on the size of the web and its thickness. It is made of aluminum or steel, which can work for a long time without the need for repair.
2. Drive This part is an element through which the shaft is set in motion. In this case, the design is developed in such a way that the pipe can rotate in different directions. Management of such a system can be organized by mechanical or automatic action.
3. Protective box. This item is optional, but present in many products. It not only protects the device, but also decorates the frame of the mechanism.

The mechanism of this kind is the simplest and consists of several elements:

1. Rope. It connects with the main ropes in horizontal blinds.
2. Roller. With it, the force is transmitted from the control thread to the web frame.

The adjustment process is quite simple and involves shortening the length of the threads that are between the individual elements. In this case, the canvas is simply compressed into a kind of harmonica.If this approach is applied to a single sheet of fabric, then folds form on its surface. This type of blinds are called Roman blinds.

Rope mechanism can be easily built by yourself. To this end, rings are sewn to the canvas on the sides, through which threads are passed. The latter are attached to the bottom of the curtains.

The mechanisms of this type are based on the movement of a special chain, which drives the shaft. Chain constructions assume the presence of a special drum, which is capable of transmitting forces to the pipe. It can be located at any end of the curtains (right or left).

The chain itself is made in the form of small balls that are held together by a thread. There is a small space between these elements, which is the same everywhere. On the surface of the drive drum, special grooves are placed into which the balls fall. The design of the mechanism involves a dense docking of these elements.

The movement of the shaft is performed due to the impact of the balls on the drum.It resembles a kind of bicycle transmission, only with a different kind of chain. To wind the curtains you need to move the chain in one direction, and for lowering - in the other. The length of the thread should be approximately equal to 2/3 of the length of the curtain.

Among the shortcomings can be identified short-lived design. This is due to the fact that many mechanisms are made of plastic, which is quickly erased. But almost all models of chains can be easily replaced. This makes this mechanism one of the most popular and popular.

Structures of this type are very attractive in appearance, since they lack additional control systems. Many install such curtains in offices or bedrooms. The mechanism itself is quite simple and assumes the presence of a spring that is connected to the shaft. At the same time, in one of the positions (above or below), it can be stretched, while in the other it can be almost without tension. This allows you to place these mechanisms as the top and bottom of the sash.

Curtains with this mechanism are perfect for several types of windows:

• swing-out;
• vertical;
• ceiling;
• mansard (made of plastic).

Fixing the web can be done in several main ways:

1. A pen. This system is connected to special stops that can hold the curtain. To fix the product, simply turn the knob to the desired position.
2. Lock ball. This element is located directly on the shaft. At the same time, it allows you to easily move down the canvas. To fix the fabric, you should just sharply move it up. This will cause the ball to close the aisle and the system will no longer move.
3. Hooks. The easiest and most common way. To prevent lifting, the lower part of the canvas just clings to the hook. These elements are often located along the entire length of the sash window.

The main disadvantage of the spring mechanism is its fragility. This is due to the fact that the spring quickly stretches and loses its original properties.Therefore, many do not recommend installing such curtains in the house where there are small children.

Today, a person tries to simplify his life as much as possible by transferring his duties to mechanisms. This led to the fact that as a drive in roller blinds Inspire began to use electric motors. Such mechanisms are much more complicated than those described earlier, although the principle of their work has remained unchanged.

The movement of the shaft is controlled by an electric motor, which acts on a special transmission.

Management of these systems can be of several types:

1. Stationary. To do this, near the window set a few buttons that transmit signals to the main mechanism.
2. Remote The console and receiver are already used as a regulator, which converts the received signal into the corresponding commands.
3. Automatic. The most complex and expensive mechanism. It includes not only the engine and the shaft, but also several sensors.They react to lighting and, at a certain value, start the engine themselves.

This kind of mechanisms is gaining increasing popularity. But at the same time it is quite expensive and not everyone can afford to buy such curtains. The disadvantage of the design is the complexity of the repair, which can not be done independently.

Each of the considered mechanisms for roller blinds has its own unique features and technical characteristics. When choosing this product, it is important to consider not only their technical equipment, but also the place of installation.

You can see visually the mechanism of the roller blinds in the next video.