Overhead lock on the wooden door: device and repair

The installation of a good door must be accompanied by the installation of a no less solid lock. Often, metal doors already contain in their structure one, and sometimes several locks. On wooden canvases it is necessary to mount it separately.

Overhead - locks, fastened directly to the door leaf. The most common mechanisms among them are: spring and cylindrical ones.

The installation of an overhead lock on a wooden door and its correct functioning depends on the initial choice. For this you need to understand the differences.

Protection class

The first difference between overhead locks is the degree of their protection. There are several classes that correspond to the degree of protection of the home from penetration. There are only four of them: from minimal and medium to high and special. The first of them is the simplest for an intruder, such a lock opens in a matter of minutes, enough about five. With a lock with an average protection will have to tinker, but its hacking will take no more than 10 minutes. To a high degree belong such fittings, which are equipped with protection against drilling the shank of the bolt. The fourth, the highest, protection class includes locks for special rooms or safes. Such devices are selected individually.

According to this classification, for household purposes and civil buildings, castles of the second and third class of protection are suitable.

Device

The overhead lock on the wooden door has another difference - a secret mechanism. Here it is subdivided into a cylinder and a lever. The latter are used as auxiliary devices, if it fails, it will be necessary to change the lock completely. Cylinders have in their design a so-called larva, which unlocks the lock. An overhead lock on a wooden door can be one-sided and two-sided. It depends on which side of the door it is opened. One-sided lock can be closed only on one side. At the same time, the rotary handle that opens the door will be located on the opposite side. Double-sided there will be a lock, which can be closed with a key on both sides.

Functions

According to the principle of functionality, there are two groups of locks:

- With spring latch. Opening is from the inside of the handle, with the outside - the key. The latch is then inserted into the housing or a special button is pressed in the housing.

- With the latch fixed. This mechanism completely blocks the door thanks to a triangular latch.

There are magnetic locks, which are advisable to install only in the place where a large stream of people. Often this is just work to open out. Such locks may require an additional power connection or an autonomous energy carrier.

How to make the right choice of an overhead lock?

Protection for the door is primarily the protection of the entire home, so it is better to give preference to well-known brands that are responsible for quality and reliability. The main criteria are how to choose a waybill on a wooden door:

- Secrecy. It is better to give preference to cylinder, rather than to the mechanism of mechanisms. They are cheaper to operate, but not less reliable. It is better to choose a cylinder overhead lock on a wooden door, the device and repair of which will be much cheaper than the one for the door.

- Locking element. Here the difference is in the deadbolt and its absence. The gate valve in the crossbar can be up to five pieces, and without the deadbolt there is only one monolithic tongue.

- The principle of opening. Mechanical, electronic or electromechanical. The first one is the most common and the simplest, since access is done with a regular key.

- Door configuration . How to install an overhead lock on a wooden door, depending on its opening? Restrictions are not special, the main thing is that the lock was chosen correctly - right or left. On each of them there is a corresponding marking.

- Additional items. For example, an integrated latch that allows you to lock the door in a closed position so that it can not open on the other side.

Repairs

It often consists in replacing the larva. To do this, you need:

• Remove the lining of the lock.
• Unscrew the fixing screw at the end of the door.
• Remove the cylinder.

Replace it with a new one and assemble it in the reverse order.

In comparison with other types of locks, a waybill is easier to repair, which is also a great advantage.

Installation: Tools

Often home craftsmen ask themselves the question: how to put an invoice lock on a wooden door? You need to start the installation after the lock is selected for all parameters. Often there is nothing complicated in this, so you can produce it yourself, without the help of specialists. The only thing, if the door is unique or very expensive, it is better to sweep this way because of the probability of damaging the canvas. Tools for the most common lock and doors will also be the most basic. These are: an electric drill with drills and a crown for wood, a chisel, a screwdriver, a hammer, a triangle or a tape measure for marking. The masters of their business have special milling cutters that perform not only fast assembly of the lock, but also very high quality. For a one-time installation of a home technician, these devices do not need anything, because they cost a lot.

Installing the overhead lock

In order to install a cylinder lock pad on a wooden door yourself, the following tools are required: a drill, electric or manual, drills to it; pencil; screwdriver; Self-tapping screws; A hammer and a chisel.

Before installing, be sure to familiarize yourself with the circuit attached to the lock. The order of installation steps is as follows:

- Make marks on the door for future holes, for this, attach the lock to the canvas.

- Drill holes for self-tapping screws, it is better to use a bit a little thinner than a screw, then it will be fastened most securely.

- Drill a channel for the core.

- Install the lock in the door and bring it to the larva.

- Fix the fixing strap to the door frame. After that, the overhead lock on the wooden door, the installation of which is almost completed, you need to check for operation, if there is no displacement of the door and the box relative to each other, then you can fix all the elements.

Installing the overhead lock

At the standard-height door, the lock installation starts from the point that is made by marking one third of the length from the top of the blade. Often, the installation instructions do not include the part in which the center of the device is measured. Therefore, you need to do the following:

- Make a marking with a square and drill a hole with a drill.

- Circle the contours of the lock on a sheet of paper - this will be a template. Next, take a drill, the diameter of which should match the size of the cylinder, drill a seat for the cylinder. Do it better on both sides, so that there are no unnecessary chips on the front surface.

- Fit the cylinder in the prepared hole, fix the body of the device with the help of samrets. Outside is installed a key pad for the keyhole. It is better to choose a cylinder overhead lock on a wooden door, the device and repair of which will cost much cheaper than the one for the door.

- After that, the lock should be opened and pressed to the box. At this point, we should note the place where the locking mechanism will be located. To do this, mark the upper and lower bars of the crossbar. In this place is located the body of the rod of the crossbar and its contour is traced in pencil.

- Make a groove with a drill or chisel so that the edge of the holder plate coincides with the door frame.

After this, the final stage is completed - checking the correctness of the installation. If the lock functions properly, then you can fix the result.