How to choose a sofa
To choose a transforming sofa and place it correctly, you must consider the following recommendations:
- If you are going to put furniture in the kitchen, then you need to abandon the armrests to create convenience;
- If you are purchasing a sofa for a child, then before purchasing, let him try to unfold the model he is interested in, so that the transformation does not cause any difficulties in the future;
- Foam rubber and synthetic padding are difficult to clean, so it is better to choose models with other types of fillers.;
- Having an orthopedic mattress would be an excellent choice, but keep in mind that the cost of such a model is much higher than a regular one.
Sofa click clack protection against back diseases.
Thanks to the use of slats in sofas of this design, the function of an orthopedic bed is implemented, protecting against diseases of the musculoskeletal system. Thanks to this, a person receives quality rest and relieves tension in the muscles of the neck and back. The listed properties are ensured by the correct position of the body during sleep. Waking up in the morning, a person does not feel pain or stiffness due to the even distribution of the load on the joints of the body during sleep. Unloading the spine will allow you to avoid osteochondrosis, the occurrence of arthrosis, scoliosis, and is an excellent prevention of radiculitis. And this will have a beneficial effect on overall well-being and performance.
The principle of operation of the transformation mechanism
Inflatable sofa in the interior
You can find different names for the mechanism, but they all have one folding option. Let's look at the diagram in more detail.
- First of all, you need to lift the seat by the edge, then pull it up. A definite click should be heard.
- Lower the seat. It will pull the backrest along with it, which will take a horizontal position.
- The result is a flat plane on which there are no protrusions or tubercles.
- If you raise the backrest, you can fix it in an intermediate position at an angle of 45º.
- On a half-disassembled sofa you can sleep comfortably, or just relax while reading a book or watching TV.
- For reverse transformation, all actions are performed in the same order.
The mechanism is made from high-strength steel, additionally treated with an anti-corrosion compound.
How to choose a quality product
Sofa in the living room
When choosing a folding sofa with a click-clack mechanism, you must:
Decide on the dimensions and design of the product. Sit down or even lie down on the sofa. Comfortable rest will be provided by models in which the back has a slight slope and the seat is characterized by a medium degree of rigidity. Check the transformation system. Ideally, the steel from which the mechanism is made should be at least 3 mm thick. Before purchasing a click-klyak sofa, you need to unfold and fold it several times. There should be no creaks, distortions, or defects in high-quality products. Find out what materials the frame and base of the sofa are made of. For the manufacture of these elements, stainless steel or galvanized steel and solid wood should be used. The material for the base should be selected taking into account the age and weight of the future owner. Check the quality of the sofa upholstery click-clack. It is advisable to give preference to durable, wear-resistant, unpretentious materials. There should be no snags, crooked seams, or abrasions on the surface of the furniture
Particular attention should be paid to the back side of the back - for this part, unscrupulous manufacturers most often use low-quality fabrics. Find out what materials are used as filler. The ideal option is an independent spring block.
Decide on the dimensions and design of the product
Check the transformation system
Find out what materials the furniture is made from
What is
Click-klyak sofas get their name from the characteristic click that is clearly heard when the transformation mechanism is activated, allowing the structure to be expanded or folded in one movement - that same click. This simple device was a modification of the universal and widely known “book” mechanism. Like its predecessor, the click-clack mechanism is firmly attached to a metal frame using screws or bolts. But this modification additionally has two clamps for adjusting the position of the soft armrests.
Sofas with a click-clack mechanism are popular due to the following features:
- Durability of the structure, which is ensured by a reliable steel frame.
- Compact dimensions when folded, which allows you to place the sofa even in the kitchen or small office.
- Convenience – the ability to fix the product in three options: sleeping place, sitting and semi-sitting (inclined) positions.
- Comfort – the sofa is complemented by a high back, which provides excellent support for the back and neck.
- Functionality - many models are equipped with a linen box, an orthopedic mattress, and a convenient removable cover, which allows you to extend the life of the upholstery.
- Bright design - a large selection of colors and textures of upholstery materials allows you to find an option that matches your individual preferences or design decision.
- Durability – the service life of such sofas, when used correctly, reaches 30 years.
Structural strength
Functionality
Bright design
Compact dimensions
Convenience
Durability
An undeniable advantage of this sofa model is its ease of transformation. You don't need much effort to unfold and assemble the sofa. Step-by-step instructions will allow you to get a spacious sleeping place in a few seconds:
- Raise the bottom half of the sofa and bring it to a semi-vertical position. If the action is performed correctly, a characteristic clicking sound should be heard. The back will follow this part.
- Lower the first half down, bringing it to its initial horizontal position. The backrest will automatically “lay down” as needed (horizontal or vertical position). If everything is done correctly, when disassembled, the surface will be a soft, even sleeping area.
The model also has disadvantages:
- In the “sleeper” position, the product takes up a lot of free space.
- It is necessary to install the sofa at a distance from the wall, otherwise it will not be possible to unfold it without damaging the floor covering or the structure itself.
- The click-clack transformation mechanism may break if one of the shutters is not fully latched.
To prevent premature wear of the transformation mechanism and abrasion of the gear comb, it is recommended to lubricate them several times a year with thick technical oil (litol, autol).
Sofas with a click-clack mechanism are very practical. This is due to the useful functions that this piece of furniture performs. In a living room or dining room, such a sofa can accommodate several people (length of the seating surface - up to 100 cm, depth - up to 100 cm). The presence of side armrests, which lengthen the sleeping area, if the sofa is unfolded click-clack, creates support for the arms - this design feature allows you to supplement the furniture with pillows or soft bolsters.
Chair click click
How to assemble a sofa book?
An armchair on a metal frame with an orthopedic brass lattice will perfectly complement the set and is suitable for the living room.
Has three levels of transformation:
- Sitting;
- Lying down;
- Relax.
The rounded armrests are independent of each other and can be adjusted into 4 positions. The spring mattress, made like a sandwich, is high and comfortable. The cover is made of multi-layer synthetic padding, which gives lightness and comfort. There is a box for linen. An armchair from the same series will look great in the interior together with a sofa.
Click furniture can be ordered at any furniture store. Transportation of the sofa should be carried out by professionals, as well as assembly and disassembly. Beautiful, multifunctional furniture, suitable for large and small apartments, for adults and children. Instructions for transportation and use are usually included.
Manufacturing materials
The quality of the sofa and its service life directly depend on the materials used to make it.
Frame material
The storage box bears the brunt of the load and must be strong enough to support the recommended weight. It is made from laminated chipboard, MDF, wood and metal, and the laminated surface makes it much easier to care for.
The base can be made in two versions:
- solid chipboard, which is not very good for the bottom, since it will not be ventilated;
- in the form of a lattice made of flexible beech and also birch.
Lattice sofa base
What fabrics are used for upholstering sofas?
When choosing an upholstery material, the main thing you need to pay attention to is strength. The most practical types of fabrics are:
Matter | Description |
| The fabric is 60-80% cotton and is one of the most durable upholstery fabrics. It doesn't tear and has a beautiful design. |
Flock | A fabric with a velvety surface to the touch, its main advantage is abrasion resistance. The composition contains 1/3 cotton, thanks to which the fabric can withstand the claws of pets. |
Jacquard | It has good density, thanks to which the fabric has a highly durable structure. Among the advantages, resistance to abrasion and fading should be highlighted; such upholstery will retain its original appearance for a long time. |
Chenille | This is the most popular upholstery material for sofas; it has excellent strength, wear resistance and does not fade in the sun. |
Materials used in the manufacture of the sofa.
When buying a sofa, be sure to pay attention to the material of the upholstery and covers. This will help avoid additional expenses in the future. The service life of the furniture depends on the type of material.
- Velor is a capricious material, it wears out quickly, although it is very beautiful. It is worth stopping at if you have the means to constantly change covers or upholstery.
- Flock - perfect for the living room, kitchen, children's room - easy to clean, dense. Jacquard - pleasant to the touch and durable. Afraid of wet cleaning, stains easily remain.
- Chenille is the best choice for a children's room. Hypoallergenic, not subject to deformation, does not lose color. The downside is that it easily leaves snags and scratches, not suitable if you have a pet.
- Tapestry - a large amount of cotton makes the material environmentally friendly and safe for others. It washes well.
- Leather is the most prestigious type of sofa exterior. Not suitable for a home, but in an office reception area it will highlight the status of the organization. Afraid of direct sunlight and chemical cleaning agents.
In addition to the above, pay attention to the frame material. Recently, in addition to metal ones, many manufacturers are equipping klik klyaks with wooden frames. This makes the design cheaper, but at the same time reduces operational capabilities. A wooden frame does not tolerate constant movement of the mechanism; cracks appear at the joints, leading to premature failure of the furniture.
Caring for upholstered furniture
If you want to preserve its appearance for a long time, then purchase a special cover for the sofa that will protect the transformer from dirt and dust. To prevent wear of the design mechanism, lubricate it with oil. Otherwise, it will gradually transform worse, which will inevitably lead to breakage of the sofa. When a mechanism runs without lubrication, friction between moving parts increases. As a result, play will appear and parts of the sofa will be skewed, which will lead to a deterioration in the transformation.
Lubricate the sofa parts with technical oil immediately after purchase. The liquid must be thick enough, in which case this operation will have to be repeated over a much longer period than when using an aqueous solution. To lubricate the parts, first close the linen compartment. Next, lubricate two rivets in turn: the one that is located between the frames, then the one that connects the seat and the linen drawer.
Repair of the click-clack mechanism.
If we are talking about operation, it is worth focusing on minor repairs that are possible at home. In addition to deformation, breakage is caused by loosening of the fastening bolts and the appearance of gaps between the frame and the mechanism, which leads to bending of the structure and subsequent jamming. The spring located at the bottom of the mechanism stretches or breaks. It is worth paying attention to the condition of the rivets; we recommend immediately replacing them with bolts and nuts.
The above is more about preventing breakdowns than eliminating consequences. Therefore, pay close attention to the sounds when unfolding. In the case of a single click, be sure to check the mechanism; as a rule, one of its parts will be jammed in this case. Lubrication will improve the situation, but this happens extremely rarely, so the solution is to completely replace the mechanical parts. Be sure to replace all parts at the same time.
Remember the mechanical parts of the click clack sofa must be lubricated. By adhering to the rules, you will ensure trouble-free operation for many years.
We select a sofa for the interior.
Another undeniable advantage of click clack models is the removable covers that come included. This allows you not to worry too much about the cleanliness of the upholstery and caring for the appearance of the furniture. The covers are easily removed and machine washed. True, washing clothes will not do any good, so you should worry that the covers meet the operating conditions and do not spoil the interior. The appearance of the sofa should match the room. In an office or hall, it is possible to use easily soiled materials if there is no constant flow of visitors. Otherwise, worry about covers or leather upholstery. When choosing a sofa, make sure that the size fits into the interior. A large one will take up a lot of space. And even with large areas it will visually reduce the size of the room. When choosing a sofa in a store or from a photograph, take into account the possibility of optical illusion when the ceiling line is lost in the total area of the showroom, so be sure to inquire about the dimensions of the furniture.
Rules for lubrication of the mechanics of a click clack sofa.
To lubricate moving parts, thick, high-quality machine oil is used that does not dry out for a long period. Maintenance is carried out according to the following scheme.
- The part of the mechanism located in the center is lubricated first.
- Four rivets at the junction of the linen drawer and the sofa seat.
- The last thing to lubricate is the rivet between the frame frames located in the center.
The click-clack sofa is reliable, practical, furniture that, if properly maintained, takes care of your health.
Types of upholstery
In modern production, a large number of types of upholstery materials are used. In order not to get confused in this variety, when choosing, you should take into account the features of the room where the sofa will be located (functional purpose, degree of illumination, general interior style).
In addition, some materials have increased resistance to dirt and damage, which is especially important for families with children and pet owners.
Let's look at the features of the most popular upholstery materials:
pile fabrics - velor, corduroy and velvet - beautiful, soft and very pleasant to the touch materials that differ in pile length; look aesthetically pleasing and give the furniture an elegant look;
tapestries with various patterns - durable natural material with a high cotton content of up to 80%;
flock is a modern material with a special type of thread weave and velvety texture; is characterized by increased resistance to damage, in particular stretching and tearing;
chenille - has a durable color, a variety of shades, the fabric does not fade over time and retains its original color;
genuine leather is a traditional material for upholstery of luxury furniture; the appearance of sofas is respectable and noble;
eco-leather is a new material for upholstering a sofa click-klyak, the photo shows that the appearance of the upholstery is practically no different from its natural counterpart;
matting - weaving linen, cotton, wool and silk threads in various combinations and proportions; It is elastic and environmentally friendly, and also holds its shape well.
To make the frame, natural solid wood is used, which ensures reliability of the product.
The transformation mechanism is designed for long service life
Particular attention is paid to noiselessness when unfolding. In exclusive models, both children and very elderly people can easily cope with changing the position of the backrest.
Common mistakes that experts make
In order to reupholster a sofa efficiently, you need to take into account some mistakes that are most often encountered during the work process:
- Inaccurate cutting. That is why it is recommended to make cuttings using old upholstery. If it is missing, then it is necessary to carefully take measurements from the structure.
- No processing of wooden elements. If the wooden beams of the frame are replaced, they will need to be pre-dried and treated with an antiseptic, otherwise after a while they will begin to rot.
- No additional fastenings. All installed wooden parts must be reinforced with metal corners.
- The distance between brackets is too large. Upholstery fabric should be secured to the structure with staples every 20 millimeters.
Rules for operating mechanisms
Any thing, if properly cared for, will last much longer, and a sofa with a transformation mechanism is no exception. First of all, you should regularly lubricate the system with machine oil, since its absence is the root cause of failure.
When elements run dry, friction between them increases, which accelerates wear of the contacting parts. Subsequently, backlash appears. The consequence of this is a skew of modules. Therefore, immediately after purchase, you need to process all the parts and rivets, but first protect the box from oil.
The system must be periodically lubricated at designated points.
Problems in operation.
In addition to the advantages, the structure of the sofa has obvious disadvantages associated with the mechanical part of the structure. Constant folding leads to friction of the component parts of the mechanism and wear. In addition, manufacturers often do not pay attention to the quality of the metal used in the design, reducing the cost of products. The use of low-quality materials leads to deformation and jamming of the mechanism. The most effective way to counter this is to constantly lubricate the rubbing parts.
Popular sofa models
To make it easier for customers to navigate, we will present several popular models, and also consider their pros and cons.
Sofa “Icarus” produced by “Pinskdrev”
A stylish three-seater sofa with steel legs is suitable for a teenager’s room, living room or bedroom. A large selection of upholstery fabrics, both plain and with interesting prints.
Main characteristics of the model:
- size, L×W×H – 2040×1050×950 mm;
- sleeping place parameters – 2040×1380 mm;
- filler – Bonnell spring block and polyurethane foam;
- equipped with a spacious box;
- frame made of laminated chipboard, fiberboard;
- fabric – velor, flock.
The only drawback of the model is the absence of removable covers.
Sofa "Icarus"Sofa Icarus Pinskdrev
Sofa "Milan" produced by "Rivalli"
A luxurious corner sofa with chrome legs can be complemented with one or two armrests.
Main characteristics of the model:
- size, L×W×H – 3,200×1,710×1,060, 3,170×2,180 mm;
- ottoman – 1120×1740×1060 mm, 2180×1120 mm;
- the backrest can be folded out separately;
- seat and back filler – polyurethane foam;
- there is a drawer for linen;
- chrome armrests.
Decorative pillows can be attached to chrome armrests; for this purpose, special loops are made on the reverse side.
Sofa Milan Rivalli
Sofa “Mirror of the Night” produced by Anderssen
This is a premium luxury sofa. The manufacturer offers a huge selection of upholstery fabrics, thanks to which the product will fit into almost any style of room.
Main characteristics:
- size, L×W×H – 2030×1050×970 mm;
- sleeping place parameters – 2030×1350 mm;
- the backrest can be folded out separately;
- seat and back filler – polyurethane foam;
- There is a drawer for linen.
The model includes drop-shaped decorative pillows that take the place of the armrest.
Sofa "Mirror of the Night"Sofa Mirror of the Night Anderssen
For what purpose is a click-clack sofa needed?
The question is far from idle. A sofa with this type of transformation often not only serves as a place to rest during the day, but also turns into a full-fledged sleeping place at night.
The beauty of this model lies in the ability to move the backrest into one of three positions: 1. “Sitting” position: the backrest is located perpendicular to the seat.
2. “Relax” position, in which the backrest is lowered by 45º, ensuring relaxation of the muscles of the back and neck.
3. Folds out into a horizontal plane and serves as a bed.
In addition, there are samples with adjustable armrests. This function is very convenient if you need to increase the length of the seat.
When choosing a click-klyak model for use as a permanent sleeping place, you should pay attention to samples with an orthopedic mattress.
As a rule, furniture manufacturers necessarily offer the buyer various types of high-quality mattresses designed for a certain weight and even age of a person.
Sofa with armrests
In general, all click-clack sofa models are divided into two types - with and without armrests. Before purchasing, think carefully about whether you need armrests or whether they will get in the way. Among the positive qualities of the armrests:
- The ability to adjust the level of the armrests - you can either completely lower or raise them. In the second state, the armrests can replace the pillow;
- When disassembling a click-clack sofa bed for two people, you can increase the length of the bed with the help of armrests;
- If you fold out the armrests, there will be a space where you can place bed linen.
What is a “click-clack” sofa?
Click-klyak is an improved version of the “book” mechanism. The main difference of the improved transformer is that it can take three different positions instead of the usual two: “lying”, “sitting” and “reclining”. The last option, when the back is at an angle of 45°, can be used for comfortable rest and relaxation.
The sofa with a click-clack mechanism has a reinforced back and a steel frame that rests on the top of the linen drawer. The design is characterized by increased strength, which allows the furniture to withstand weight up to 300 kg.
Does it have armrests
All “click-clack” models are divided into three types – with movable armrests (“ears”), with classic fixed ones (quite rare) and without.
The presence of movable armrests, which are an extension of the sofa and have four possible positions, provides the following advantages:
- they can be completely lowered or raised, which changes the appearance and functionality of the furniture;
- If you raise the armrests at the head when the sofa is disassembled, they can replace the pillows.
Before choosing a model with armrests, decide whether you really need such furniture or not. This sofa has a non-standard appearance and dimensions that do not fit into any interior.
Types of click-clack sofas
There are three types, each of which has its own characteristics:
- Direct. A universal model that is suitable for any room. If necessary, the transformer can not be folded out and used as a single bed.
- Angular. Spacious furniture, suitable for rooms where you need to completely occupy a large corner.
- Modular. A type of corner model, consisting of several components that can be used as poufs or armchairs.
Features: linen box, removable cover, pillows
Depending on the chosen model, a sofa with a click-clack mechanism may have a linen drawer, a removable cover and pillows. Now let's look at the features of each of these elements:
- The linen box is made of wood or laminated chipboard, which makes it strong and durable. In addition, the box is always roomy, so you can store all the necessary bedding in it;
- Removable covers help to preserve the appearance of the upholstery for a long time, since if necessary they can be removed and washed. If the set includes several covers at once, this will allow you to diversify the design of the furniture and not rush into washing;
- pillows play a decorative rather than practical role. If they are two-tone, they can be flipped, thereby slightly changing the appearance of the furniture.
What disappointed viewers in the new show “KlikKlak”. Mannered Danya Milokhin and squealing Ilya Prusikin
The KlikKlik association has released a new YouTube show, “Rat Race,” the first episode of which divided social network users into two camps. Some of them are happy about the return of the channel after a year and a half and the updated format, while others want to see the same content and are not happy about Dana Milokhin as a participant.
The YouTube channel “KlikKlak” has released a new show for the first time in a year and a half. The association of musicians Ilya Prusikin from Little Big, Yuri Muzychenko from The Hatters, Eldar Dzharakhov, comedians Danila Poperechny, Satyr and blogger Andrei Satrogo became famous thanks to the programs “Trash Lotto” and “Give Bream”, where the participants had to perform funny and at the same time traumatic tricks.
Still from the “KlikKlak Show”
Often during “competitions,” friends would play Twister using superglue, dive into a pool of manure, and hit a “hydrotattoo” with a high-pressure hose aimed at an exposed area of skin.
Still from the video of the “KlikKlak” association
In 2022, the violent shows that made the channel famous stopped appearing on KlikKlak. And only a year and a half later, the participants decided to “delight” the audience again. In the new show “Rat Race”, five friends from “KlikKlak” were joined by tiktokers Danya Milokhin and Liza Vasilenko, blogger Polina Chistyakova and Little Big lead singer Sonya Tayurskaya.
Still from the show “Rat Race”
Each of the participants in the “Rat Race” contributed 500 thousand rubles to the general gaming fund. In each episode, after the test, a person will leave the project.
Still from the show “Rat Race”
The show was divided into two parts. In the first, the presenter asked the players to decide by voting who should leave the project. And in the second, participants had to choose one of several paintball guns. The one who pointed to the only charged device and received a “bullet” from it left the YouTube program.
The release turned out to be conversational, emotional and not at all cruel: the only shot fired by a paintball marker was not strong. True, the episode left many viewers dissatisfied. Fans of KlikKlak felt that the content of the association had become more pathetic and peaceful.
Heavenly asshole
It smells of money and [something unpleasant] from this “Rat Race”. It's disgusting to watch, very disgusting. In my opinion, everything is very bad. This is clearly not the KlikKlak we loved.
Other commentators did not like the behavior of the participants and the presence of girls in the frame.
Took the little one out on vacation
I watched "Rat Race". It’s such a cringe, of course, to look at the squealing guys over 30, at the girls I’m seeing for the first time, and Milokhin...
Twitter users were also not delighted with the fact that the players included tiktokers - and especially Danya Milokhin.
Yoklemene|rest
I just turned on “Rat Race”, I see Milokhin, who is stupid again, I want to turn it off right away.
₊˚. sc ʀ ᴇ ᴇ .˚₊
KlikKlak is back.
TikTokers include...
But despite the criticism of social network users, in the comments on YouTube, viewers confess their love to KlikKlak and tell what they experienced together with the participants.
His Majesty Chance... Some kind of extraordinary jitters, you place bets several times, you root for everyone. Breathe life into the channel, keep it up guys!
Guys, this is tough, you have such a range of emotions! He turned on me, and now I’m hysterical!
KlikKlak members became famous as crazy YouTubers who agreed to experience pain for the sake of the show. Over the years, many of them have grown into popular artists and comedians and are now able to make content without getting bruised.
Medialeaks previously wrote that KlikKlak members launched their own TikTok house, where they record duets with stars and support popular trends.
Classification of sofas with a click-clack folding mechanism
Manufacturers produce a wide variety of such models; let us dwell in more detail on the features of each design.
Straight and corner designs
Straight ones are the most common type of sofa with a click-clack mechanism. Interesting design and stylish upholstery allow you to choose a model for any area and for different room styles. Its advantages include:
- a simple and convenient mechanism that even children can independently unfold and fold;
- the backrest can be installed in an intermediate state at an angle of 45º;
- For upholstery, different types of fabric with a high-strength base are used.
Straight sofa with folding armrests
L-shaped models are chosen for both spacious rooms and small rooms. This is a practical solution for free corner space. When folded, the sofa has enough space to accommodate several people. Additionally, the furniture is equipped with comfortable armrests, which can be lowered thanks to adjustable mechanisms.
Corner model
Related article:
The sofas are equipped with a spacious drawer and folding armrests
Manufacturers often equip sofas with a spacious drawer. You can store both bed linen and household items in it. This is a nice addition, especially in small apartments. Thanks to it, there is no need to purchase additional cabinets and chests of drawers.
Spacious drawer located under the sofa seat
The box can be located in an additional extension section
Manufacturers have added another convenient feature to sofas - adjustable armrests. Before buying such a model, you should know that the maximum permissible load on the rotating structures is 30 kg, so you cannot sit on them. However, this is their only drawback.
The advantages include the following:
- ability to adjust the location of the armrests. When elevated, they completely replace a pillow;
- when unfolded, they increase the length of the sleeping area, forming a real bed.
Related article:
Advantages and disadvantages
The book sofa is popular because of its convenient mechanism, but it also has other advantages:
- Modern and attractive look. Beautiful design, allows you to insert click-clack into any room, regardless of the interior features;
- Long service life - parts are made of durable steel that can withstand heavy loads for a long time;
- When disassembling the sofa into a flat position, the surface does not deform into holes or bumps;
- The frame has orthopedic properties;
- Convenient in size - it is small in size, so it can easily find a place in small rooms;
- The presence of internal drawers where bed linen can easily fit.
Despite all its advantages, this furniture also has some disadvantages. Sofas with a click-clack mechanism need to be installed so that there is space between the backrest and the wall so that it can be unfolded without difficulty. Otherwise, the sofa will have to be moved away from the wall so that it can be completely unfolded. Because of this, you will have to constantly monitor to maintain the necessary space.
In the video: the “click-clack” mechanism.