For the manufacture of furnishings they are used various elements connection of parts. Self-tapping screws are a popular type of fastener that has its own undeniable advantages. They are especially often used for assembling cabinet furniture, ensuring a sound and durable connection of structural parts.

Self-tapping screws are a popular type of fastener that has its own undeniable advantages.

It is important to select fastening elements based on the material and its density, thickness, etc.

Self-tapping screws have different types.

This type of fastener, known as a self-tapping screw, is a type of metal screw with a screw thread and a pointed or flat end. The head of the element has a notch (straight, cross or polygonal) for twisting it into the fabric. For more fast connection parts of a cabinet or other object, for elements with a sharp end, use a screwdriver (if not available, a screwdriver).

The selection of self-tapping screws is also influenced by the type of design and the desired appearance of the product.

Due to the thread, the screw is easily screwed into wooden panel or laminated chipboard. For hidden fastening of furniture parts, an eccentric coupler is used, in which self-tapping screws play a major role. As a result of this type of assembly, tables or other objects are neat, without external traces of installation that spoil the appearance of the product.

This type of fastener, known as a self-tapping screw, is a type of metal screw with a screw thread and a pointed or flat end.

Important! The length of the screws can reach up to 50 mm and above. These fasteners are designed for thick solid wood panels.

Self-tapping screws are used to fasten parts without prepared holes or with them.

The appearance of the product is affected by the possibility of installing a hidden connection.

Depending on the material and features of the design parts, there are two types of fastenings:

• with rare carvings and a sharp end;
• confirmations.

Due to the thread, the screw is easily screwed into a wooden panel or chipboard.

The first type is used for solid wood, chipboard, laminated chipboard and MDF. May vary in length and diameter.

FYI. Short screws are used to assemble narrow panels and plywood.

The length of the screws can reach up to 50 mm and above.

The second is used for the manufacture of furniture mainly from wooden planks sufficient width. It differs in that at the junction of the thread and the smooth upper part it begins to thicken. Confirmats often have a flat end and therefore require prepared holes.

Confirmats often have a flat end and therefore require prepared holes.

These fasteners are designed for thick solid wood panels.

Advantages and Disadvantages

For furniture layout, fastenings are of utmost importance. And the appearance of the product is influenced by the possibility of installing a hidden connection.

For furniture layout, fastenings are of utmost importance.

The advantages of self-tapping screws as fasteners are:

• eccentric coupler;
• neat and reliable connection;
• precision in fitting parts.

When purchasing self-tapping screws, it is important to consider many points.

They are especially often used for assembling cabinet furniture, ensuring a sound and durable connection of structural parts.

If a set of self-tapping screws is used to assemble a furniture structure, then if you work with them carelessly, the following is possible:

• distortions of parts;
• loosening of the fastening when screwing in repeatedly.

The base of the screws is steel.

How to choose?

When purchasing self-tapping screws, it is important to consider many points. The base of the screws is steel. To connect specific parts, elements with different coating. When assembling furniture, you must consider:

• length of fasteners;
• their diameter;
• cap thickness;
• carving;
• degree of corrosion (depending on the coating).

To connect specific parts, elements with different coatings are used.

The selection of self-tapping screws is also influenced by the type of design and the desired appearance of the product.

The color of the fasteners is also important when the connection is open. In this case, it is worth choosing elements to match the canvas.

The color of the fasteners is also important when the connection is open.

To make a table or cabinet, you may need different screws, so it is recommended to consult with the seller if you are going to create the furniture yourself.

It is worth choosing elements to match the canvas.

Self-tapping screws have different types.

Confirmat is used for a more reliable screed. At the same time, a cap is often placed on the cap to make the fastener look more aesthetically pleasing.

To make a table or cabinet, you may need different screws.

Self-tapping screws are used to fasten parts without prepared holes or with them.

VIDEO: Furniture screws

Furniture has always been made from individual elements, which are then assembled in a certain sequence. Previously, furniture screeding was carried out using locking joints, tenons and wedges, however, for simple home furnishings this was enough. Similar connections are still used today in the manufacture of antique-style furniture. In modern furniture production fasteners are presented wide range elements. This allows us to produce furniture of various shapes with in complex ways connections.

When assembling a furniture product, the location of the connected parts of the structure must be checked so that its integrity is not compromised during operation. This is what a furniture tie is intended for - a fastener that makes it possible to tightly and firmly connect structural elements, located in a certain position (most often at right angles) relative to each other. If previously furniture was assembled mainly using screws and self-tapping screws, now they use different types screed

This replacement is due to three reasons:

1. Increasing the aesthetics of furniture, thanks to the use of ties, the fastening of parts becomes invisible;
2. Each disassembly of furniture assembled with screws reduces reliability;
3. Sometimes the use of conventional fasteners is simply impossible for structural reasons.

And finally, the use of furniture ties allows for quick and durable assembly of the product.

Types of furniture screed

Depending on the purpose of connecting parts, different types of furniture ties are used. They differ in external design and the material from which the fasteners are made.

Confirmat

Simple and convenient use has made confirmat (or euroscrew) the most common type of fastener. This euro-screed consists of one element - a euro-screw, which can be called a reinforced version of the self-tapping screw. Its shaft is slightly thicker, has a blunt end and a massive, widely projecting thread. Thanks to the notches on its lower turns, when tightened, the Euroscrew cuts a chamfer in the finished hole. This makes it come into even closer contact with the material being fastened.

The confirmat can be used to connect two furniture panels located at right angles. To do this, holes are simultaneously drilled on both panels: for the countersunk head and for the screw thread. It is better to drill them with a special drill for confirmat furniture screed. The countersunk head has hexagon slots.

It is not recommended to screw in confirmations with a Phillips screwdriver, since it is impossible to screw them all the way. If holes are pre-drilled in all parts of the furniture structure with a special drill for furniture screed, the furniture can be assembled with a confirmat faster than with any other type of fastener.

When connecting L-shaped or T-shaped furniture elements, eccentric couplers are used. This fastener consists of three parts:

1. A rod having a head;
2. A special clamp called an eccentric;
3. A plug that creates a decorative effect.

The advantages of such tightening include the secrecy of the fastener (the hole is not drilled on the front side of the furniture) and the possibility of its repeated use without the risk of damaging structural elements. Due to the complex drilling, which requires a furniture tie drill to drill blind holes, eccentric fasteners are often performed in the factory. For the eccentrics you need to drill holes with a flat bottom; this is easier to do with a Forstner drill.

Intersectional screed

Intersectional furniture screed is necessary for tightening individual sections, for example, kitchen cabinets, into a single block. Given threaded connection complete with screw and bushing. They drill into the side walls of evenly aligned cabinets through hole, a bushing is inserted into it on one side, and a screw is screwed in on the other. Although both heads are notched for a Phillips screwdriver, it is the connecting screw that must be tightened, not the bushing. The notches on the sleeve are made to hold it so that it does not rotate in the part. You can tighten a pair of cabinets using 2 - 4 intersectional fasteners, which are best placed closer to the corners. Depending on the wall thickness, fasteners of different sizes are used.

Corner screed

Corner ties have been used in furniture production for quite a long time. This connection is made up of five elements:

1. A corner in the form of a metal plate bent in the middle at a right angle;
2. Pairs of bolts;
3. Two footwear.

To connect two panels with a corner tie, a corner is placed at the point where they meet. Then the fittings are inserted and the bolts are screwed in, first to one panel, and after trimming the connection to the second. IN finished form, judging by the photo, such a fixation can hardly be considered aesthetic. Therefore, today, whenever possible, corner fasteners are replaced with other furniture ties, for example, minifix or confirmat. Their dimensions are much more compact than a metal corner plate.

Screw coupler

Furniture screw fasteners are used when the end of one part needs to be attached to the surface of another. This fastener has only two elements: a screw and a barrel. A threaded hole is made in the side of a cylindrical metal barrel. In some screw ties the barrel is made of plastic, then a nut is placed inside it. When installing this fastener, a couple of holes are drilled on the surface and at the end of the panel. A barrel is inserted into the first one so that the holes on the barrel and the end are aligned. The screw is threaded into a through hole drilled in the surface of another panel. The large tightening stroke makes the fastening particularly durable. The aesthetic error of this type of screed is considered to be the visibility of the screw head on the front side of the panel.

Conical coupler

The conical tie is an improved version of screw fastening. To hide the screw head on the front side of the panel in the conical connection, the screw was replaced with a rod. Unlike a screw that goes through the panel, the rod only screws into it. This reduces the tightening stroke and makes the fastener less durable.

Table top screed

In the manufacture of kitchen furniture, furniture table screed is used. When the tabletop is assembled from two parts, paired fasteners are installed. Why use a Forstner drill to mill one hole in each part of the tabletop. A groove is cut between the holes using a chisel. Clamps are placed in it. A tension head with a C-shaped washer is placed in one blind hole. Then, using a wrench, begin to tighten the C-shaped nuts.

Furniture dowel

The simplest type of fastening is a dowel. Given connecting element looks like a short piece of pencil made from a piece of wood. Today, when assembling furniture, the dowel complements the eccentric tie to give it greater rigidity, and it is rarely used as an independent connecting element.

How to choose the right screed

Choosing a suitable furniture screed has great value when assembling furniture. The final result depends on it in the form finished product. There are quite a few types of screeds, so each case requires an appropriate approach to assembly. The selected type of fastener should not interfere with the operation of the furniture or spoil its appearance. To ensure these conditions, it is necessary to choose the right furniture screed and not violate the assembly technology.

Cabinet furniture pieces are mainly designed to store various things. Therefore, when assembling them, it is necessary to ensure the strength of the connections. Confirmat screed is best suited for this. This fastener allows you to connect parts at the desired angle. And thanks to the holes for Euroscrews, drilled using a special drill for furniture screed, Confirmat ensures high-quality assembly of cabinet furniture. The main disadvantage of confirmations is the unaesthetic appearance of the hats, which, although they remain flush, are still very noticeable.

An eccentric tie is another type of fastener used in assembling cabinet furniture. It is used where it is necessary to hide fasteners, for example, on the facade of furniture. The main advantage of eccentric fasteners is hidden installation.

Its high load-bearing capacity is due to its design. Cabinet furniture is a prefabricated structure consisting of several pieces of furniture connected to each other. This necessitates the use of an intersectional tie, which is designed to tighten adjacent pieces of furniture.

Main purpose upholstered furniture- comfortable stay. Therefore, it should be comfortable, practical and last long enough. Fastening upholstered furniture with carriage tie must be reliable and have an aesthetic appearance. Ideally it should be invisible. All these requirements are met by a furniture bolt with an eternal companion, a nut. With such metal fasteners, the furniture will withstand the mechanical loads exerted on it during operation. In addition, the semicircular head of the bolt, which protrudes slightly above the surface of the parts, will be completely invisible under the upholstery, especially if there is a carriage tie on it.

Assembling furniture is a non-trivial task when it comes to non-standard and interesting solutions. But there are clear rules for how the elements are attached to each other. At a certain point, dowels were common, and they are still used until that time. There are other solutions for fixation, which will be discussed in the article.

Types of fasteners

Furniture ties can be used individually or in combination with others. Some furniture items are designed for special occasions. It makes sense to consider the features of each and the principle of its installation.

Confirmat

It is a direct descendant of self-tapping screws for a knife screwdriver, who liked to hammer in correctly instead of carefully screwing in. Using the confirmation will not cause problems even for an inexperienced user. It is a self-tapping screw that has an increased diameter and is also not equipped with the usual tip. Furniture confirmation designed for use with a special hexagonal nozzle. You can't screw it in with a regular Phillips screwdriver. Such fasteners have become especially in demand with the growth in the production of cabinet furniture. The latter is assembled from laminated chipboards using facades or inserts from MDF.

With the help of confirmat, two furniture parts are fastened only at an angle of 90 degrees. If a different angle is required, then fasteners are used, which will be discussed below. Since the confirmat does not have a sharp tip, it cannot simply be screwed into wood. Before assembly, holes are drilled in the parts. Near the head, the confirmat has a slight thickening, which requires the use of a 6 mm drill. For the threaded part you will need a consumable with a diameter of 5 mm. It is most convenient to use special drills for confirmations. They are a small crown or cone into which a 5 mm drill is inserted. As soon as the drill is completely recessed into the material, the cutter makes a slight expansion under the head of the furniture fastener.

Pay attention! The head of the confirmat must fit flush into the furniture.

This is done to hide furniture fasteners special plastic or other linings. Usually the furniture board is 16 mm thick, so the hole is drilled in the end in the middle. If a hole is drilled in a furniture board from the front, then an indent of 8 mm is made from the edge in order to smoothly join the parts.

Confirmats can be used in conjunction with other fasteners, for example, dowels. This is done for a more durable joining of furniture parts. It is worth understanding that fixation of furniture parts can be ensured by top level only during the first assembly. If you frequently assemble and disassemble furniture, the confirmators will not be able to fix the parts with the required rigidity. When screwing in furniture fasteners, it is necessary to select the correct force. If it exceeds the required limits, then the confirmat will simply begin to scroll or damage the second part.

Advice! It will be easier for inexperienced masters to reach the confirmation manually.

Those who have been working with cabinet furniture for a long time have learned to feel the tool and avoid deforming parts by excessive tightening.

Rastex

Rastex is also called furniture eccentric. The installation of this furniture element has certain features and requires experience. The screed consists of two metal parts. One of them is partially similar to the confirmat, but has a smaller diameter. The second is precisely the eccentric that performs the fixation. The second element is similar to a metal plug that engages with the head of the first element and secures the part. Such fastener often used in factory assembly of furniture. It makes it possible to fasten two furniture parts without visible fasteners.

A similar type of eccentric tie can be seen in Soviet-assembled cabinet furniture. Only in it it was a bolt that passed through the horizontal wall and was fixed in big hole vertical wall by means of a semicircular plate with a thread in the center. The advantage of modern rasteks is the ability to fix furniture parts at the required angle. In addition, products that are assembled using such a clamp are easy to disassemble and reassemble the required number of times. To properly fix the eccentric in the parts, you will need two drills and a cutter.

One drill with a diameter of 5 mm will be required for a hole in the vertical part to fix the threaded part of the rastex. For the body of the rastex, a 6 or 8 mm drill is required, it all depends on the specific furniture fastener. The cutter diameter is usually 15 mm. The hole for the eccentric is drilled in a vertical or horizontal part. It is necessary to set aside 24 or 34 mm to the center of the hole, it all depends on the specific furniture fastener. The cutter must be recessed to a depth of more than half the thickness of the chipboard sheet. You must be careful not to go through it.

After this, a hole is drilled from the end, which should go to the hole for the eccentric. The rastex body is screwed into the hole that has been prepared for the threaded part and passed through the end hole to the hole for the cutter. After this, the long part can be clamped with an eccentric. A visual diagram of the fastening process can be seen in the picture above. There is a video about fixing with Rastex below.

Dowel

Some furniture makers call dowels dowels, choppiks, riffles and other words. The essence of the element remains unchanged. It is a small wooden or plastic element cylindrical shape. In some cases it acts as a guiding element, in others - as a fixing element. This screed is used in furniture for hidden installation. The customer will not be able to find a single trace of the screed. To install the dowel, it is enough to drill holes in two blanks. Their depth should be such that the screed does not fall through. The dowel is covered with PVA glue or other suitable composition and inserted into the prepared holes. The parts must be fixed until the glue has completely set.

Screed for sections

The clamp for individual sections is designed to assemble a solid furniture corner from the modules. The product is a bolt with a head that has a large diameter. It screws into a nut that looks like a hollow bolt. The size of such a screed varies depending on the thickness chipboard sheets it is calculated. Installation of such an element is simpler than the previous two. It is enough to firmly fix the parts that need to be fastened with a clamp. After this, a through hole is drilled and a tie is mounted, which is tightened with a screwdriver.

Corner

The appearance of this screed fully corresponds to its name. When assembling furniture, two types of corners are used:

• plastic;
• metal.

The second ones are metal element, which is bent at an angle of 90 degrees. Each part has one or more holes through which screws are screwed. Plastic corners They are a closed structure similar to a pyramid. An example can be seen in the photo below.

As you can see, the screws are hidden under a small plastic cap, which is very convenient. In the professional field, such a screed is used quite rarely, because it has low strength. Sometimes they are used to assemble parts of the base element of a cabinet. In some cases, a tabletop can be attached to a furniture corner if the table is not expected to be moved. It is better to use rastex instead of a corner.

Table top screed

This element is used quite rarely, because it is usually kitchen furniture calculated in such a way that the tabletop is solid. As you can see in the photo, the furniture fastener is a long screw that rests on two washers and is secured with an elongated nut. Typically, such a product is used in conjunction with dowels, which increases the strength of the joint. Several ties are applied to the width of the tabletop.

To install such a furniture element, you will need to drill two holes using a cutter. After this, two holes are drilled from the end to the larger hole. A cutter will be required with a diameter of 35 mm. Instead of an end hole, you can choose a groove using a router. After this, the washers and bolt are installed, as well as the nut is tightened.

Shelf fixings

A separate subtype of furniture ties are shelf holders. They can be for:

• glass;

Each type has distinctive features. A high-quality element consists of two parts and is a bit like rastex. The rod is fixed into the wall at the level where the shelf should be, and the holder is cut directly into the shelf. One shelf will require a minimum of 4 elements. Shelf ties can be with or without fixation. In the case of those used for glass, the lock is a bolt. An eccentric is used for holders of chipboard shelves.

Resume

As you can see, for each task when assembling furniture there is a separate type of ties. Fastening each furniture fixer requires some skill and may not work out the first time. That is why it is advisable to practice on scraps so that the result is perfect.

An indispensable component of cabinet furniture is the connecting fittings - screed. Furniture screed, usually invisible on the product, is the key to the durability and strength of cabinet furniture.

Historical excursion

The first “connections” used to strengthen furniture were universal - they were used both in the construction of structures made of timber, such as a church or a hut, and in the manufacture of furniture.

Carpenters who masterfully wielded a saw and chisel manually made elements of furniture screeds, among which the dominant ones were locking joints, wedges, tenons, and “shkanes” (in modern version- dowels).

The process was quite labor-intensive. The parts provided a screed only if they were tightly connected using glue and had an absolutely perfect fit to the product. These compounds are currently applicable only in the form decorative element in the manufacture of furniture in the “retro” style, due to the resemblance to furniture made by master craftsmen.

From the times of carpentry, only a dowel (8 X 30) of a modern look remained in use.

All other developments by artisans have given way to specialized furniture screeds.

So the dowel received a groove and a precise chamfer at the end on both sides. Assembling furniture using a dowel allows you to quickly and correctly position cabinet furniture parts during assembly.

At the same time, the dowel is a simple and cheap part; it is the low costs that make the dowel stand out among the many special fittings.

The dowel absorbs lateral loads and prevents the displacement of individual parts of cabinet furniture during operation.

But working with a dowel also has its difficulties and disadvantages. For example, when making a dowel from undried wood or inappropriate storage ( high humidity premises), the dowel can change its cylindrical shape, which will make it impossible to form a high-quality connection.

With a large size of the product and, accordingly, increasing loads on the joints, the dowels are unable to withstand pulling out and require additional reinforcement of the product - a furniture tie.

Types of furniture screed

The main types of screeds actively used by furniture manufacturers are:

• Using a barrel tie or screw tie
• Application of a conical tie
• Application furniture corner
• Application europrop or screw tie
• Application eccentric coupler

The listed types of screeds have different principle work, as well as the advantages and disadvantages that characterize the product on the positive or negative side.

Screw tie: principle of operation

The type of tie under consideration contains two elements: a screw and a “barrel” - the body of the tie, made in the form of a cylindrical part with transverse threaded holes.

The “barrel” is made of metal or polymer material(plastic) with a nut inside. A “barrel” made of polymer material has a larger diameter compared to a metal product.

The main advantages of a screw tie include high strength and a large stroke of the tie, since tightening the screw with significant force ensures strong adhesion under lateral loads.

With these advantages of using a barrel screed, you should not forget about the disadvantages of this type of furniture fittings.

First of all, this is a complicated assembly, since the hole in the housing must be correctly and accurately aligned with the screw.

As a result, the mutually located axes of the holes for the body of the coupler and the screw should ideally intersect at the face and end.

If the installed housing is simply turned the wrong way, it will not be particularly difficult to turn it into the correct position using the slot provided for such cases at the end.

However, if the hole for the “barrel” is deeper than required, the body will simply “sink” and it will be extremely difficult to pull it out of the recess.

Another disadvantage of the screed is the screw heads visible on the side surfaces of the furniture, which spoils the appearance of the product.

Even if you cover the screw head with a plastic plug, it will attract attention and general view will be damaged, since the plug has a convex appearance and does not always correspond to color scheme with the product.

Application of a conical coupler: principle of operation

In order to improve appearance furniture, the “barrel” coupler was modernized, which made it possible to hide the screw, since it was replaced by a rod pressed flush into the face of the cabinet furniture element.

So, in the main part it is necessary to drill two holes - at the end for the rod and in the face, perpendicular to the first hole, for the barrel.

A rod with a conical recess is installed in the transverse hole of the housing. The screw tip also has conical shape and when screwed, it rests against the side surface of the tie rod, displacing it towards the end of the main part, which makes it possible to achieve the optimal tension for the tie.

The disadvantages of a conical tie include high requirements for the accuracy of the location of holes in elements of cabinet furniture, a small tightening stroke, and labor-intensive assembly.

Moreover, under significant loads, it is possible to crush the edge of the coupling hole, which makes the coupler inoperative as a whole.

Furniture corner: operating principle

It is a strip of metal bent at right angles with a hole and a groove on opposite shoulders.

Includes five elements: an angle, two countersunk screws, two threaded fittings. The corner is attached to furniture parts using footers with internal threads.

This tie is durable and easy to install and does not require precisely positioned filler holes. The main disadvantages include a large number of defects in manufacturing, inconvenience in operation (it is impossible to place objects directly against the wall of the product) and the visibility of the screed, which spoils the appearance.

Euroscrew: operating principle

The Euroscrew came into use among domestic furniture makers in 1973. At that time the screed had the name “Confirmat” and was presented in the “Hettich” catalogue.

In Europe, this screed is called "Einteilferbinder", which means a single element or single screed.

For some reason, domestic furniture assemblers gave it the name “Euroscrew” or “Euroscrew”, whereas in fact it is a “screw tie” due to the similarity of the body to a dull screw.

Today, Europrops are not only imported from abroad (“Hettich” - “Direkta 2”, “Dresselhaus” - “Unita Stahl”), but are also produced at domestic enterprises.

The Euroscrew has become widespread due to the fact that it does not imply precision during its landing.

It is only necessary to drill two holes: the first - in the end of the body, the second - in the face attached to it.

Euroscrew is designed for tie small-sized furniture, while different manufacturers provide screw ties with special design features.

The use of a screw tie does not imply countersinking the hole. The small diameter of the screw head allows the tie elements to be recessed flush with the surface of the part being connected.

It is also common for screw ties to use a body with a provided “tooth” under the screw head, which ensures a flush fit without the need for a countersinking procedure when chamfering the hole.

A high-quality screed should not have any displacement of the slot or head relative to the axis. If displacement does occur, the strength and functionality of the connection of chipboard furniture parts deteriorates.

For a more durable connection of parts, it is necessary to use a tie with a small pitch of turns and with a better threaded point. The first turns of the thread are conical with special notches, which characterizes the work of the tie in the form of a tap or self-tapping screw.

Conical turns, and there are mainly four of them, ensure cutting of high-quality threads to accommodate the remaining turns without disturbing the structure of the slab.

The disadvantages of a screw tie include visibility from the end of the screw head. It is usually, like in a barrel screed, closed with a polymer plug.

Furniture assembled using this tie cannot be assembled more than three times, since the threads are broken. Failure to use a dowel during work causes deterioration in the appearance of the furniture.

Hoping for the strength of the metal components of the screed, the elements are not secured in the rental, which “takes away” individual parts of the furniture.

Eccentric coupler: principle of operation

The eccentric tie occupies a leading position among these types of tie, displacing even the screw tie. The highest quality cabinet furniture is assembled using an eccentric tie.

The principle of operation of the screed is quite simple.

A metal or polymer sleeve is screwed or pressed flush into the face of the attached sheet, and then the tie rod, the head of which has a “T” shape, is screwed into it.

When assembling furniture, the rod must pass through the prepared hole in the end of the key part, which will allow its head to be in the center of the transverse hole drilled in the face.

By turning the eccentric in the hole, the force on the rod head is created that is necessary to bring the parts being connected closer together and provide optimal force in the connection.

An eccentric coupler includes such elements as: a cast metal eccentric, a fitting, a rod.

Eccentric tie designs are common, characterized by direct screwing of the rod into the material of the part being tightened, without the use of a fitting.

The main difference between eccentric couplers from different manufacturers and designs is the use of eccentrics of different diameters.

Mostly eccentrics with diameters of 12, 15 and 25 millimeters are used. Eccentrics with a diameter of 25 mm must be covered with a plug made of polymer material.

Disadvantages of an eccentric coupler:

1. There is a high probability of loosening of the tie during operation of the finished product. Various manufacturers solve this problem in different ways. So this may be the concave inner surface of the eccentric in contact with the spherical working surface of the rod head. Some manufacturers use a base design in which the multi-stage inner surface of the eccentric is adjacent to the flat working surface of the rod head. When using a multi-stage eccentric, its outer surface is equipped with oblique smoothed teeth, which are inclined in the opposite direction relative to the direction of rotation of the eccentric during assembly to increase the adhesion force with the material of the parts, and also prevents spontaneous rotation and loosening of the connection during the use of cabinet furniture. Notches made on inner surface eccentric, greatly enhance its adhesion to the rod compared to using an eccentric with a smooth working surface.

2. Requires accurately measured relative position all holes. The lack of precise additive equipment is preventing more and more widespread use of an eccentric coupler. Thus, drilling parallel holes “on the knee” leads to breakage of the eccentric even with a small force during assembly. These disadvantages Although they negatively affect the growth in the use of eccentric screeds, they do not prevent the introduction of increasingly easier-to-use varieties of screeds. For example, when using the most common cams, which have a diameter of 15 mm, they can be of different lengths to fit exactly in the center of the web of the rod hole.

Types of eccentric couplers:

• reinforced eccentric
• reinforced eccentric with additional footing

One of the ways that allows you to move away from the complicated alignment of the axes of holes in the end and face of the product is the use of eccentrics directly in the body.

The eccentric is installed in a hole prepared by drilling in the face near the end of the blade, forming an opening for the exit of part of the eccentric body with a hole for the rod.

This method allows the use of a shorter tie rod, which allows the eccentric axis to be placed closer to the end of the key piece.

Thanks to the design feature of the reinforced eccentric, the tie can be tightened by positioning the screwdriver at an angle to the cabinet furniture parts. Outer casing ties using a reinforced eccentric can be made of plastic different colors or metal, which of course will give a more attractive look to the furniture.

The screed is widely used as a shelf support. Unlike shelves installed on conventional shelf holders, a shelf using a tie based on a reinforced eccentric allows you to create a strength element of the structure to increase the strength of the finished product, which is the main characteristic when choosing cabinet furniture and furniture for offices.

The eccentric is necessarily placed in the body material, and not in the shelf fabric, which allows you to repeatedly rearrange the shelves without loosening the connection and wearing out the hole with the eccentric.

A reinforced type eccentric, which has an additional footing, is used for particularly loaded or subject to high loads products.

In the case of heavy shelves, a reinforced type eccentric in an elongated body is used, which has an additional footing for which an additional hole is provided. The used footer allows you to stabilize the shelf, preventing it from moving relative to the sidewall.

The article discusses the most common types of ties for connecting parts of cabinet furniture. The given advantages and disadvantages of certain screeds will allow you to choose the most suitable screed option and avoid common mistakes.

The full range of ties used for cabinet furniture in this company can be found in the electronic catalog or in the company’s office itself.

When choosing a tie, you must understand that this is not just a significant connecting element of cabinet furniture, but a device that allows you to create the necessary force between parts to increase the furniture’s resistance to external loads, creating the necessary strength for its long-term use.

The quality of furniture assembly and the reliability of its operation are largely influenced by fasteners designed to connect individual elements to each other and used for installation of products. Of course, the type and design features of the fasteners depend on the category of furniture and the conditions of its use.

Modern industry offers a sufficient number of new fastening accessories that greatly facilitate the assembly of furniture and increase the durability of its use in the most adverse conditions. For example, kitchen samples made from cheap particle board are more likely to fail through panel delamination or peeling. decorative covering than they will fail due to poor quality or reliability of fasteners.

Today, in the industrial and independent production of furniture products, many types of fasteners are used, differing in functionality, method of fixation, size and protective coating.

Fastener categories

If half a century ago the main elements for assembly components furniture were wooden dowels, and installation of various pieces on site was carried out using nails or screws, today the range of accessories for connecting individual parts and elements of furniture has expanded significantly.

Modern fastening and connecting parts can be divided into several categories, including both highly specialized products and universal fittings:

The most common types of furniture fasteners

Let's consider the most common groups of connecting and fastening fittings for furniture, features of their installation and operation.

Button or decorative head screws and bolts with a fixing mustache or carriage - the main specimens used to tie individual panels frame furniture. Thanks to the fixing mustache or square head, the bolt (screw) is fixed in the hole of the particle board, which prevents it from turning. Due to this design feature The assembler has the ability to tighten the nut without additional fixation of the screw.

Universal screws with countersunk or semi-countersunk head have splines various shapes(cross, with internal hexagon, straight slot and others) and intended for fastening individual assembly parts inside furniture designs. They are used for:

Note!

When using universal screws, either screwdrivers with replaceable bits or sets of screwdrivers with replaceable tips are used.

Confirmats (europrops) V modern production furniture are the most popular type of fastening and fixing devices. This type is used for fastening any parts made of chipboard or MDF panels.

Before screwing in the Euroscrews, holes are pre-drilled in the parts using a special confirmatory drill, the diameter of which depends on the diameter of the fixing element. To screw this type of fastener, use either special bits or screwdrivers with seed tips. The type of bit or attachment depends on the type of slot.

Eccentrics other accessories, bearing the somewhat exotic name of rasteks and minifixes, allows you to connect and attract panels located at right angles to each other. Despite obvious advantages In this category of fasteners, their main disadvantages are:

• the need for additional milling of furniture panels to install individual fasteners;
• relatively high cost.
• high precision markings and complexity of installation of individual fasteners;

Note!

To install individual minifix parts you will need three various types woodworking tools - one end mill and two drills of different diameters.

Furniture corners have proven themselves to be a reliable, easy-to-install element. Today they can be made either of metal or of special, high-strength plastic. In industrial production, the color of the plastic corner is matched to the color of the furniture.

Modern furniture dowels made of wood, plastic or metal. Their main advantages are the low cost and ease of connecting furniture parts together. To increase the reliability of the connection, there is a corrugation on the surface of the dowels.

Special types of fastening accessories

Today, furniture, individual parts of which are made of glass sheets or in the form of mirrors, is becoming increasingly popular. If ten years ago glass was mainly used as doors furniture cabinet and showcases or doors of racks and shelves, then today glass table top magazine or dining table you won't surprise anyone.

To connect glass parts and furniture elements made from other materials, special types of fittings are used, which are attached to glass surfaces using special adhesive compositions, by wrinkling the clamps with rubber gaskets or by drilling holes in the glass. When choosing this category of fittings, you must pay attention to the weight that it can withstand, which is specifically stated in the instructions for its use.

This review will focus on new furniture fittings.