FOP (fixation of the open position) is the fixation of the door in the open position (relevant in crowded places, for example, shops, clinics, shopping centers). The convenience of this position is convenient in that you do not need to constantly open and close the doors, especially if there is a large flow of people passing through the day. And it’s not always convenient for people to open doors, for example, mothers with several children or a stroller, a person with limited legal capacity, bringing a patient to the clinic on a gurney or wheelchair. Therefore, in such cases, it is impossible to do without using a special mechanical lock to hold the door in the open position.
The latches that hold the door open are divided into:
The latches are permanent;
Built-in latches;
Detachable latches;
Mechanical type fasteners DORMA door closer:
DORMA classic door closer (lever made in the shape of a grasshopper's foot).
This type of closer does not have built-in fixation. But it is possible to install a special lever, which will be responsible for holding the door in the open position. Such a lever can be included in the kit or purchased separately. For example, this lever is included in the kit together with a door closer of the DORMA TS 68 series. The lever can also be equipped with a lock that can be turned off and on or with a permanent lock.
Levers with fixed open position for door closers manufactured by DORMA:
Lever with position lock open door without shutdown function for door closers from the manufacturer DORMA series TS71, TS72;
Lever with door open position lock with functions of disabling and enabling the function for DORMA closers of the TS71, TS72, TS83 and TS73V series;
2. DORMA door closer with sliding channel.
This type of door closer does not have a built-in lock, and only the door closer of the manufacturer DORMA TS93 series has a built-in position for holding the door in the open position. The position adjustment is fixed with special screws.
In this case, clamps are supplied as an additional option. The advantage of such a clamp is that they are mounted in a sliding channel. It is possible to install the latch after installing the closer. There is no need to buy a new lever, as is necessary with a classic door closer. All types of fixation of the open position of the sliding channel have the function of disabling and enabling the function.
FOP with sliding channel:
Mechanical type open position clamp for door closers manufactured by DORMA TS90 series;
Mechanical open position clamp for door closers manufactured by DORMA TS91,92 and 93 series;
Mechanical type open position clamp for door closers manufactured by DORMA ITS96 series;
3. DORMA floor closer.
This type of closer is equipped with a built-in FOP function with fixation at a certain angle of 90 or 105 degrees, or without this function. The built-in locking function cannot be disabled (the exception is the BTS80 series closer, the function is turned on and off with a screw).
Floor closer in open position from the manufacturer DORMA:
DORMA BTS60 with door open position at 90 degrees;
For door closers with FOP, the angle position can be adjusted from 80 to 120 degrees (except for BTS60, 65, 75V, 84 and their analogues).
When the door is locked in the open and closed position, it is recommended to use door closers with electromechanical locking. After all, it is not always necessary for the door to be open, especially if it concerns an emergency, for example, a fire. In this case, to control this function, the closer is connected to a smoke sensor or fire alarm. When the sensors are triggered, the door will automatically close.
Among the classic versions of door closers with an electromechanical function, we note the manufacturer’s models DORMA TS 73 EMR and TS 73 EMF (with built-in smoke sensor).
Sliding channel closers – manufacturer models DORMA ITS 96 EMF, TS 93 EMR and TS 93 EMF.
Floor closers – models from the manufacturer DORMA BTS 80 EMB series.
Right now in our online store website at affordable price You can purchase door closers with the function of locking the door in the open position.
If you could not find the option you need in the website catalog, then write to our email: info@site or call: 8-499-502-80-00 and we will help you find the product you are interested in as quickly as possible.
There are many types of door hardware, without which not only convenience, but also the operation of the product itself is impossible. The list is significant - awnings, handles, eyes, locking mechanisms. But the door opening limiter is not included in the list of necessary accessories, and few people still know about it, especially if they install it during the installation of the unit. But in most cases, this fixing element is simply irreplaceable.
Purpose of limiters
Their main function, regardless of the variety, is to protect and protect. Who (or what) and from what exactly?
- Of people. There are often situations when the door leaf suddenly swings open spontaneously from a strong draft or from someone else’s effort. What if there is a child standing in front of her? Although an adult can quite easily be injured by the same handle, or even by the canvas itself. When installing a door lock, such cases are completely eliminated. This locking element securely holds it in a user-defined position.
- Property. A sharp opening of the door results in its handle touching the wall, a piece of furniture standing near the doorway. More precisely, it hits them. As a result, damage to the cladding of the room and the canvas itself. If we analyze all the costs for at least partial renovation, elimination of defects that have appeared with the cost of a door stopper, the conclusion is clear; its installation is more than advisable.
- Elements of fittings. This fact is not mentioned by all sources, but it exists. For example, if we are talking about a “passage” door that has to be constantly opened, then the limiter allows you to reduce the wear rate of the same hinges. When there is a large flow of people or frequent movements of household members from one room to another and back (for example, in the morning, before leaving for work), it is enough to fix the sash in the open position so that it is not constantly slammed. The same applies to the resource of the latch mechanism combined with the handle interior door; it also has an output limit.
Types of limiters
They are classified according to several parameters, but this does not mean that the division of emphasis into varieties is so unambiguous. Each of the modifications of limiters is characterized by a number of features that are characteristic of a particular group of products. Knowing the features of their functioning and use, it is easier to look after best option latch for a specific door.
According to the specific application
Clamps that hold the door in the closed position. Essentially, these are latches that prevent the sash from opening spontaneously. You don't need to turn the handle to open them; All you have to do is pull the door towards you. The most complex in terms of device are the motion limiters installed on plastic balcony doors.
Roller clamps are reliable and durable. The working “organ” is most often made in the form of a ball, which, in the closed position, fits into the slot of the strike plate installed on the jamb.
For the mechanism to work properly, little is required - systematic monitoring of the door condition and timely adjustment. If there is significant sagging or distortion, the latch will not work, since the roller will move relative to the seat.
A halyard stop is an angled tongue that is articulated with the door handle mechanism. When it is pressed or turned, it is pulled into the sash. It returns to its original position by a spring. Interior and entrance doors are equipped with such clamps.
Magnetic door stops that have appeared on the market are quickly gaining popularity. They are a pair of plates, one of which is attached to the canvas, the other to the box. Such clamps are not afraid of distortions and deformation of the canvas; they reliably hold the sash regardless of operating conditions, do not require maintenance, adjustment and careful use can perform their function indefinitely.
These stops are necessary to ensure that the door is held securely in the open position. Many people make fasteners of this type themselves from scrap materials, placing a rolled-up newspaper, a board or an old slipper between the canvas and the frame; therefore, the principle of operation of the limiter is clear.
The so-called “jacks” consist of a pedal (fixed to the floor or canvas) and a rod rigidly connected to it, which is held by a spring. Such door open position latches are controlled solely by the foot, which is convenient if your hands are busy with something and you need to close the door behind you. Moreover, if necessary, you can easily rearrange the stop of this type, thereby changing the angle at which the canvas swings.
The door latch in the open position, which is equipped with a PVC structure, is designed differently. Its task is to prevent tight closing of the opening to the balcony. For example, if a child comes out to him and the door slams shut due to a gust of wind, he is unlikely to be able to cope with it on his own. Some effort is required here, and the baby will be completely isolated.
Limiters regulating the opening angle
“Combs” are installed mainly on balcony doors made of plastic. Their purpose is to hold the sash in the position selected by the user. For example, to ventilate a room. One part of the retainer is attached to the door leaf, the other to the block. Such fittings are familiar to many plastic windows; the analogy is complete.
"Hoses" and "tapes". Opening limiters of this type are installed on entrance and interior doors. Unlike combs, they do not fix them, but fully correspond to their name. The length of the hose (tape) determines the maximum angle at which the sash can be opened. Since it is adjustable, it improves ease of use.
By installation method
The restraints are attached to a solid base, where it is more convenient for the owner and more expedient, based on local specifics:
- wall;
- door leaf(block).
According to the principle of operation
- Regular stops. They are a rigid core with soft covering; basically RTI.
- Mechanical limiters. The same latches controlled by the door handle mechanism.
- Magnetic latches.
By execution
- Stationary installation. For example, an interior door latch, a “comb”.
- Mobile versions. A typical example is a “jack” clamp.
The benefits of installing limiters are obvious. And if you consider that they can be made in the most original form (various figures and the like), then this element of door hardware is easy to fit into any interior. Moreover, the choice of products is huge, since many of them combine several functions - to limit, fix, regulate.
Reading time: 6 minutes.
Correct installation quality materials and an ergonomic handle are the basis for comfortable use of the door. But for a more comfortable and safe operation it is necessary to equip the door leaf with additional devices. One of them is a latch, the main function of which is to lock the sash in the required position.
Types of fasteners
To choose the right type of accessory from a variety of models, you need to determine in what room and for what purpose it will be installed. The entire variety of door locks is usually divided according to several criteria:
- purpose - to fix the door in a closed, open position or at a certain angle;
- by location - floor, wall, over-door;
- by design - with rigid mounting or mobile.
Application cases
Door stoppers are small and inexpensive, but very useful accessories. They are used in everyday life public institutions And production premises. Main advantages and reasons for using a retainer:
- ensures safe swinging of the sash, which prevents the doors, furniture and walls themselves from accidental damage;
- fixes the door in a given position in rooms with high traffic or, if necessary, to carry large objects;
- prevents sudden closing of the sash and its possible damage from a gust of wind or draft;
- allows pets to move freely throughout the entire area of the apartment or house;
- allows you to leave children unattended in the room for some time.
Open position clamps, opening angle limiters
Magnetic door lockWide categories of fasteners according to appearance, and according to the method of fastening and principle of operation. It is useful to have them at home, since from time to time situations arise when you need to temporarily lock the door in the open position to carry things in or ventilate. In public spaces with active traffic, such accessories are indispensable.
Another type of magnetic latches Floor (wall) clamps
Common and easy-to-install types of limiter. They are characterized by ease of installation and use, low cost and long-term reliability. Such devices can be either stationary or portable:
The stopper is attached to the bottom of the sash and allows you to temporarily fix the leaf in the open or half-open position. Available in various colors, suitable for installation on wood, aluminum, plastic doors for any purpose.
Read also: Threshold to the balcony: made of plastic and ceramic tiles
Video on installing a magnetic door lock (automatic stop):
Closed position latches
These types of stops are installed to fix the sash in the closed position; they are used for interior and balcony doors in residential premises, entrance doors in public places and shops. There are several types of structures, each of which has its own characteristics and advantages.
Ball (roller)
They are mounted on the end of the door leaf; when closing, the ball-tongue with a spring enters the hole in the strike plate attached to the door frame at the same level, and securely fixes the door in the closed position. A fairly reliable and time-tested mechanism that can withstand many opening and closing cycles. The principle of operation and design of the roller stops are similar to the ball mechanism, but the shape of the tongue is more elongated.
Ball (roller) latches are not associated with the door handle - to open the door you just need to press the door leaf. Such mechanisms are convenient for equipping doors that need to be closed most of the time, but easy to open when necessary. 
Installation of such a latch does not require dismantling the door handle and locking device - this additional device, which is usually located slightly higher or lower. It is necessary to observe the relative correspondence of the levels of the tongue and the hole on the strike plate horizontally.
False
They have a beveled tongue, which also, when closing, fits into the corresponding slot in the metal strike plate installed on the door frame. To open the door you need to turn door handle– halyard latches, unlike ball latches, are associated with it.
This type of latches is more reliable compared to ball (roller) ones - such a door will not be opened by a strong gust of wind or Small child. When installing the halyard clamp on balcony door It is recommended to provide a double-sided rotary handle, otherwise it will be impossible to open such a sash from the balcony side.
Original door holder
Among the many door accessories, the door lock occupies a special place - it serves for safety. Moreover, it protects not only the door leaf itself, walls and furniture from damage caused by excessive swinging, but also prevents injuries that can be caused by a structure that suddenly slams shut due to a draft.
There are many situations when it is necessary for the door to remain locked in a given position or simply not be able to close or open completely. This is especially necessary when there are small children in the house. They may accidentally pinch their fingers or be bruised by doors set in motion by a draft. To prevent this from happening, a stopper is installed on the door.
But sometimes the opposite is required - to fix the product in a closed position so that it cannot be opened from the outside. Door handle stops are used for this purpose.
Floor clamps and limiters
Exist different types stoppers installed on the floor. Some of them hold the door leaf, others simply do not allow it to swing open enough to damage the wall decoration or the furniture behind the door. Among them there are stationary and mobile products.
Stationary ones include:
Mobile floor clamps are much more diverse:
- The simplest stopper in the open position is a regular wedge with a non-slip base, which can be made in the form of a toy, a cool figurine, etc. You could see an example of such a stopper in the picture at the beginning of the article.
- Another type of floor stopper is placed on the bottom end, and his non-sliding legs rest on the floor on either side of her.
To open or close the door, just press the floor stopper with your foot, thereby releasing it from the groove. There are other configurations of such devices, but they all work on the same principle.
Wall fixings
According to their purpose, they can also be divided into door opening and closing limiters:
- The first are small parts of various shapes and styles that are attached to the wall with screws and do not allow the structure to hit the wall. They can be simple or magnetic. Their installation is justified in cases where it is undesirable to spoil expensive parquet flooring by installing floor limiters, or if a “warm floor” is laid under the covering.
- More functional are devices such as a stopper, which is attached to the upper casing. In the tilted position, it does not prevent the product from closing, but if you turn it 90 degrees down, it will create an obstacle to complete closure. You can be sure that even with a draft or children's pranks, there will always be a gap between the door and the frame that will not allow the baby to get his hand pinched.
For reference. There is no need to worry that floor or wall stops will damage the finish of the door. They are executed from soft materials or are equipped with a rubber pad at the point of contact with the door leaf.
Over-door clamps
If you only need to protect children or pets from a slamming door, you can put a C-shaped stopper made of rubber, elastic plastic or other soft material on its top or side end.
If you need to hold the door leaf at the desired angle, pay attention to the following device. It consists of a metal body and a brake pad.
To extend the brake pad and secure the door from opening, you need to press the pressure pedal with your foot. And to remove the fixation, just lift the brake pad by pressing the lever.
Locking device latches
For interior doors
Locks are rarely installed, but if access to a room needs to be limited, handles with a stopper are usually chosen (see). These handles are equipped with a latch that holds the door in the closed position using a tongue that fits into the hole in the strike plate on the frame. Magnetic latches are no less popular.
But a latch without a stopper will not allow the structure to open only from drafts; if it is necessary to prevent strangers from entering the room, a latch with a latch is needed - a rotary button that locks the tongue in the closed position. It is installed on the doors of bathrooms, as well as other rooms with limited access.
Another thing is the entrance doors. They tend to slam shut at the most inopportune moment, for example, when you take out the trash (see). The door lock retainer will prevent this from happening by keeping the tab inside the mechanism.
;