Door closers are the ideal solution for people who do not like door claps or just forget to close the door when entering. Understand what the system is; what kind of good for a shop door, and what - for a closet cabinet; how to correctly install the door closer and what you need to know when adjusting it will help the material below.
- Principle of operation of modern door closers
- Types of door closers
- Installation of door closers
- How to adjust the door closer?
- Purchase of closers
Door closer for the entrance doors is a mechanism designed to automatically close the doors. If you work in the office, then you know the feeling that you feel when the door is always clapping like a draft. Naturally, customers do not hold the door, they simply do not know that it closes loudly. Their method of working with the door is simple: opened, passed, pushed the door back, and then - come what may. Due to strong impacts of the entrance doors against the wall, they may fall out of the glass, the plaster on the slopes may fall off or the door structure may break. In order to avoid the destruction of the room, it is worth using door closers for the entrance doors.
Initially, the fine-tuning mechanism was a spring stretched between the box and the canvas, which allowed the door to be closed back. This method was not always of high quality: the door still clapped when closed, and if the spring was weak, the door did not close. But over time everything is being improved. Today, door closers represent a number of mechanisms that allow you to close doors automatically, quietly, without impact and consequences.
Principle of operation of modern door closers
The modern door closer operates on the principle of the same spring, which is now hidden in a special case or a door awning. In addition to the usual spring, the modern door closer for the entrance metal or glass door is able to perform a number of complex tasks, namely: to keep the door in one position, to close it quietly and without impact, to protect the door from collision with the obstacle, to withstand any weight and dimensions of the doors.
In addition, modern door closers can be adjusted. It is also possible to adjust the closing speed of the door and the force applied to the process independently.
Types of door closers
Before going to buy and install door closers, it is worthwhile to figure out what kinds they are, and what is the difference between them. It starts with the fact that there are 4 types of door closers, namely:
- concealed door closers;
- specialized closers.
The first kind - overhead closers. You can meet them very often. They represent a design that is fixed to the top of the door and works by means of levers. Overhead curtains, in turn, are divided into 2 types: with a gear drive and a sliding rod.
- The mechanism with a gear drive is used for heavy doors with a load of 80 kilograms, so this is not suitable for interior doors. The principle of the gear drive is quite simple: the mechanism is driven by gears or a pin, then the action is transferred from the spring to the pull of the door closer. Thus, the door closes smoothly and quietly. To regulate and establish such a mechanism is quite simple - this is the secret of the prevalence of this species.
- Mechanism with a sliding rod is a less used model, but more reliable. According to the developers, this mechanism can be used for several decades without fear that it will break. The principle of operation of the sliding rod is as follows: when used, the cam rod activates the spring and the two pistons, which in turn close the door and are responsible for its smooth braking. The mechanism with a sliding rod is compact and unobtrusive, so such a door closer can be put on the front doors of an apartment or a house.
The next type of door closers are floor structures. Lower door closers allow you to hold or close the door leaf. Judging by the name, they are located directly on the floor. The main difference is the method of attachment. Here the mechanism is attached to the canvas at two points: the shaft with a spring on the inside and the same with the fastening elements - with the outer. In addition, there are lower door closers that synchronize with the top, which allows better and safer closing doors. Use the lower systems in shopping centers and places with great patency. This is due to the high reliability of the device. Lower door closers are designed for a weight of 25 to 300 kilograms.
The third type - closers hidden installation - mechanisms designed for smooth and silent closing of doors without installing extra structures. This species, in turn, is divided into 2 subspecies: door closers-loops and hidden mechanisms with a sliding rod.
- The door closer in the form of a loop is a small mechanism, hidden in the sash and covering it. The entire structure is placed in the door hinge, and when the door is closed, this process slows down. This option is more suitable for interior doors, rather than for the entrance. In addition, the "loops" are easy to install: in order to put the system, you do not need to drill the canvas and walls.
True, most of the advantages of the loop structure are overlapped by its disadvantages. Loops have a limited scope of use; Do not use for doors with high masses; because of their small size, their service life becomes minimal; they are very demanding on the process of mounting the door leaf. Apart from these nuances, loop designs are ideal for an apartment.
A sliding rod is present in almost all types of door closers, so a hidden view is no exception. It is much more reliable, durable and qualitatively better than the loop system. In addition, it does not spoil the appearance and is also easy to install.
The sliding rod works here, as well as in the door closer. The only difference is the size and method of installation. The basis of the construction of the sliding rod is put on the end of the door and on the top of the door frame. Then both parts are connected by the rod itself.
The latter kind is specialized closers. Such systems are well suited for sliding systems and doors with special purpose (smoke, fireproof). If we talk about sliding systems, then the task of closers is not to let the door collide or hit the box. There is a system of pins, the same - and its main minus: o pins easily zapnut, thereby breaking them.
For doors with special purpose use electromagnetic or electrohydraulic closers.
There are also systems with a lock. This function allows you to hold the door, not allowing it to close. Well suited for premises in which you often need to make a lot of large objects (warehouse). If the function is not present, do not hold the door yourself, this can lead to breakage.
Remember! When choosing a door closer, the total weight of the door must be taken into account.
All kinds of closers for the entrance doors can be seen in the photo.
Door closer: installation
Self-installation of door closers is not an easy task. In order to properly put the mechanism, you need to adhere to a clear, phased plan.
The first thing to do is to look through the entire kit for all the details. The kit should include: the door closer, the lever, the fasteners and the template for installing the purchased system. It is the template that we will need in the future.
Next, take our template and install it according to the proposed scheme on the closed door. For more convenient installation, you can fix the template on the tape. Through the fixed drawing drill holes for further installation.
At the third stage, we collect the whole mechanism. First, just fix the lever on the box, then, put on the door closer and connect the both parts with a screw. It is important to remember that the door closer is then mounted directly to the door, and hence the position should be appropriate.
Stage number 4 - thrust adjustment. To do this, look for the holes on the door to coincide with the holes of the door closer. Also, you need to remember that the adjusting screws should look towards the door awnings.
At the last stage we attach the entire mechanism to the door itself. If in the process of work the system holds the door too tightly or, conversely, keeps it weakly, everything can be corrected by adjustment.
When setting the return mechanism, one must also take into account the peculiarities of its form. So, for example, floor closers on doors without a box are installed both on the floor and on the ceiling. It is important to observe the moment of their coincidence, since both mechanisms are some kind of loops. In case of improper installation, fragility and breakage are ensured.
Features of the installation are also hidden closers. Hinged structures are mounted like an ordinary canopy, but the upper hidden closers are installed quite differently. To install the top system, make two grooves: at the top of the box and at the bottom of the top of the door. When installing this type, it is important to remember the width of the gap between the box and the doors.
The closest thing is the overhead door closer. When installing it, it is necessary to take into account only the side into which the doors open.
How to properly install the mechanism of the door return look in our video.
How to adjust the door closer?
After installing the mechanism it is worth checking to see if it works correctly. To do this, simply open the door and see how it closes. If everything is mounted correctly, the door closes smoothly and noiselessly. When the closing speed or "dohlop" does not meet our expectations, the mechanism needs to be adjusted. You do not need to call the wizard to adjust, you can do it yourself.
The adjustment process is quite simple. We will analyze it using the example of an overhead mechanism. The first thing you need to do is remove the protective cover installed on the door closer. Protective cover - front and most often removed by a simple shift to the side. After removing the cover, we will see two bolts. The left bolt is responsible for the overall speed of the system. The right bolt is for the speed of the "dohlop". To increase the overall speed, you must turn the left bolt counterclockwise. To reduce - against.
Speed "dohlopa" is regulated with the help of the right bolt. It will make it easier to open and close the doors. To facilitate opening, turn the bolt counter-clockwise. To amplify, on the contrary, clockwise.
Adjustment of the door closer is necessary not only for installation, but also for temperature changes. Cold winter or hot summer the system will necessarily start to work "with failures", to correct the situation, evaluate the problem and use the above instructions.
Remember, when adjusting it is not necessary:
- rotate any of the bolts more than two turns;
- hold the door closer in an unclosed state if there is no latch (Held-open mode);
- help the door closer to close with the help of mechanical efforts.
Adhere to these tips, and the adjustment will be successful.
Purchase of closers
Buy mechanisms for complete closure can be on the Internet, construction stores, specialized stores selling doors and door systems. The key factors affecting the price will be the type of system and its load capacity.
The cheapest option is considered loop systems. This is due to their miniaturization. The cost of this type of kit is from 1000 rubles.
Further, among the cheapest systems can be identified rod installations. The price for the mechanism is from 1250 rubles.
Cheap are also special installations, which is due to their fragility. The cost is 2000 rubles.
The most expensive are considered floor and overhead closers. The prices for them start from 2000 and can reach up to 3500 per device.
Prices are compared based on a factor of 15 to 25 kilograms.