How to embed the lock in the interior door?

Only mortise locks are inserted into the interior doors, as the overhead will look somewhat cumbersome and too visible from one of their sides. It is not difficult at all to do this work, especially to those people who at least once had such an affair. The article will look at how to choose, install and adjust the locks of this type.

The most common version of the lock in a wooden interior door is a cylinder mechanism with two round or L-shaped handles and a latch. They are available in several versions, for example, with or without a locking device.In the first case, it is possible to close the door on one side, thereby blocking the opening with its handle on the other side. That is, you can lock yourself in the bedroom and relax, without fear that someone will enter the room and find you in the undressed form. The lock without a locking device is placed only so that the door can be tightly covered with a latch, protecting it from drafts, smells from the kitchen or noise from other rooms.

The locking device does not have to be a key mechanism. There are also locks that have ordinary locks of various shapes, fitted into the main handle, for example, levers or buttons. The range of locks in the building materials stores is quite wide, so there should be no problems with the choice.

If you look at it, different versions of devices are put on the doors of rooms with a specific function:

• for cabinets are suitable locks with larva for keys on both sides;
• for bedrooms, toilets, bathtubs and showers - devices with interlocks from the inside;
• for children’s rooms, the newfangled and expensive magnetic locks are ideal;
• for kitchens, halls and utility rooms can be limited to ordinary locks with handles and a latch.

But in any case, all devices must be embedded. When choosing, be sure to make sure that the interior canvases in your home have the appropriate thickness for the fittings to be chosen. Standard doors usually have unequal thickness of the leaf: one - not less than 35 mm, others - 45 mm. Here they need the appropriate fittings in order to avoid the fact that the lock will be equal in thickness to the door.

As for the magnetic lock mentioned above, such a device has a movable positively charged core (bolt) inside, which begins to act only when the door is closed. In this position, it is opposite to the negatively charged magnetic strip, installed on the door loot. The bolt is attracted by the strap and securely locks the door in the closed position. To open the door you need to turn the knob, which disconnects (unlocks) the magnets. After the door is opened, the crossbar is no longer affected by the force of interaction of opposite pole magnets, so it returns to the place. A completely silent device is gaining popularity, which so far only holds back the rather high price of this type of construction.

For sliding interior doors, there are also special locking devices. They bump into the canvas, have the same rotary knobs and a bar on the box.The main difference between such devices lies in their hook-shaped latch, due to which this constipation is called “harpoon”.

No matter which lock was chosen for a particular interior door, preparation for installation is not much different from its type. You can give advice: if you plan to embed locks on all interior doors of an apartment or house, then it is best to do it on door leaves removed from hinges. Any professional will tell you about this. If you decide to put the locking device only in one door, and removing it from the hinges presents certain difficulties, it is better to mount the lock in the “standing” position.

Armed with knowledge and having ascertained the completeness of the kit, you should decide on the height at which you will install the device.Typically, locks cut at a height of from 100 to 150 cm from the floor surface. Choosing a height, you can make a preliminary mark on the canvas and think about the tool that will be needed to tie in the existing lock.

Consider the option of the most simple tie-in device with two handles and a latch.

For work you will need:

• chisel;
• electric drill with drills;
• feather drill 22 mm;
• mill on a tree with a diameter of 50 mm;
• set of screwdrivers;
• hammer;
• measuring tools (ruler, square, tape measure);
• washable marker or pencil.

When installing the lock, it will be necessary to make grooves for the base plate of the latch on the front side of the door leaf to a depth of 3-5 mm (depending on the model),as well as for the back plate on the door unit.

This is done by hand using a chisel and a hammer using the following technology:

1. the slats are applied to the place of your future location, and are circled around the perimeter with a pencil or thin marker;
2. according to the size indicated, the platform is carefully cut down with a chisel and a hammer to a small depth;
3. further work needs to be continued, observing the depth - it should be strictly along the thickness of the plates, since neither excessive burial nor a too shallow groove is desirable;
4. having cut down grooves, they are cleaned of roughnesses and garbage.

Before embedding the lock, you need to make a markup. All incision operations starting from the markup are easy to carry out on your own. Usually such accessories are installed right in the middle of the door leaf from one of its edges. Therefore, the middle of the canvas is marked with a small line using a tape measure (for a standard door from its bottom it will be 95 cm or so in any direction).Then from the edge of the canvas, which will cut the lock, with the help of a square is marked 6 cm to the intersection with the previous mark.

At the intersection of two marks put a noticeable point. It is this point that will be the center through which the axis of the handles and the blocker will pass if the lock needs to be assembled with a retainer. Here will be the center of drilling holes for decorating pens.

All operations are then better performed according to the algorithm.

• With the help of the same square we transfer the center point to the side of the door, right in the middle of the thickness of the canvas. Here will be the center of the cylindrical body of the castle (latches, tongue).
• Now you need to take a drill bit, insert it into the electric drill and drill a hole under the lock body. At the same time, it is necessary to withstand the strict perpendicular position of the drill axis with respect to the sidewall of the door leaf. The depth of the hole is about 35 mm.
• It is necessary to change the drill bit in the drill on the mill. This tool drills a hole for pens. Here, too, it is necessary to carefully monitor the position of the tool so that it is perpendicular to the door in both the horizontal and vertical plane.In addition, you can not allow the through drilling of the door on one side. On the cutter there is a sharp tip protruding along the axis, similar to the pen of the previous drill, so it will serve as a guideline for the end of work. When this tip has drilled the opposite side of the web, then they move from the mill to the other side and drill a hole from there to avoid damage to the web at the site of the mill cutter.

• The next step is to correct the size of the outlet for the latch using a pen drill. It should be within 23 mm (we had a 22 mm drill). To do this, you just need to fit the hole to the size, inserting and trying on the lock cylinder to the hole.
• After that, it is necessary to clean the resulting two holes, which connect with each other perpendicularly along the axes, from dust, sawdust and burrs.
• We insert the lock cylinder into the corresponding hole and perform a groove sampling under its support plate using a chisel and a hammer in the manner described above. When the seat under the latch will be ready, install it in place, drill through the holes for the mounting screws with a thin drill and fasten the lock to the door with them.
• Now you can insert one of the handles in the hole of the lock, note the exact location of the striker plate. To do this, the tongue is covered with any dye and, holding the tongue in a deeper condition with a handle, cover the door to the end. Making sure that the door is closed tightly, you need to release the handle, the latch abuts the door block and make a mark. And already on this mark, you can calculate the installation location of the striker plate. Sample under it to make a chisel and hammer, as described above. Upon completion of the development of the groove, set the bar in place and secure with screws.

It remains only to finally assemble the lock, adjust, if necessary, its work, and finally fix all fasteners.Immediately it should be noted that one should not be too zealous with fasteners, especially in those locks, where the parts of the device are fastened to each other from different sides of the canvas. Strong tightening of the screws can deform the casing, and it will be difficult for the locking mechanism to work, even if it is jammed.

Since the latch is already in place, it is necessary to insert the handle. The first step is to install a handle with mounting screws that you need to unscrew before installation. After that, the handle is inserted with its square axis into the hole of the lock and into its own hole in the canvas until it stops.

Another handle in modern models is often fixed on a cylindrical body and has a removable decorative strip. First, the handle and decorative strip need to be removed from the body, having drowned the latches, and only then the body is installed into the corresponding hole in the canvas against the square control axis from the opposite handle, and is mounted on this axis against the stop. Then the mounting screws are inserted into the holes, and with them the two sides of the handles are fastened to each other.

Now it will be necessary only to return the decorative lath and the handle to the case, having drowned the catches on the case.They are threaded into the body until the moment the clips come out, which have gone out of digging into the mounting grooves of these elements.

The installation of the locking device is completed, and the free motion of the lock mechanism and its precise operation must be adjusted. This can be checked by turning the knob. It should move easily and without gaps, and after releasing it, immediately return to the place. In the event of a heavy stroke or seizure, it is necessary to loosen the fastening screws slightly. On the contrary, if there are extraneous sounds and backlash in the mechanism, then fasten screws must be tightened deeper.

After adjusting the locking mechanism should check the operation of the system as a whole. To do this, close the door and check the correct installation of the back plate. If there is a slight backlash of the latch in the bar or, conversely, the millimeter shift of the hole relative to the latch, then all this can be eliminated by bending or bending the adjustment plates of the hole of the reverse bar.

If the lock works correctly, then there should be no backlash between the latch and the back plate, the door closes tightly, the lock works easily and without unnecessary noise.

How to embed the lock in the interior door, you will learn from the video.