RU2598133C1 - Hollow toy building block - Google Patents

Abstract

FIELD: games.

SUBSTANCE: hollow toy building block containing an upper wall and at least three side walls, on the outer side of the upper wall there is at least one primary projection extending from the upper wall essentially perpendicular to the upper wall section, on which it is located, inside the cavity the toy building block has at least two inner contact sections, which are installed correspondingly to one primary projection or correspondingly to at least two of primary projections, and which are intended for contact with one or at least two primary projections of another toy building block, characterized by the fact, that it comprises at least one inner reinforcing extending element, at least one of inner contact sections is located on one of inner reinforcing extending elements, whole inner reinforcing extending element, on which the contact section is located is arranged within the distance measured from the lower surface of at least one side wall towards the upper wall and equal to height of the primary projection, or part of the above element extends from the lower surface of one side wall by the height equal to height of the primary projection.

EFFECT: higher hardening block walls.

702 cl, 34 dwg

Description

FIELD OF THE INVENTION

The invention relates to building blocks, in particular to toy building blocks.

State of the art

Currently, building blocks are known, as described, for example, in document US 3005282. Known building blocks are made in the form of a hollow block containing an upper wall and four side walls, as well as primary cylindrical protrusions protruding from the outer side of the upper wall, and secondary cylindrical protrusions protruding from the inside of the upper wall.

However, such known building blocks have several disadvantages. The inner surface of the side walls of the block is smooth and does not have any protruding parts, i.e. those sections of the inner surface of the side walls that are designed to contact with the primary protrusions of another similar block are no different from the rest of the sections of the inner surface of the side walls. This may cause inaccuracy in the connection of the blocks, since the primary protrusions can slide along the inner surfaces of the walls. In addition, known blocks are prone to collapse if they are made of soft grades of plastics, or cracking if they are made of hard grades of plastics. Therefore, the walls of the known blocks are thick enough, which entails high material costs in their manufacture.

Also known blocks very much slip out of the hands of the user, since the outer surfaces of the block and the primary protrusions are smooth. Thus, even though the primary protrusions are present, the blocks can slip out of the hands, since fingers can slide over the surface of the primary protrusions.

Thus, there is a need to improve the known building blocks and at least partially eliminate their disadvantages.

Disclosure of invention

The objective of the invention is to expand the arsenal of technical means, i.e. in the creation of new types of building blocks that provide additional benefits when using them.

Another objective of the invention is the creation of building blocks that would simultaneously have both increased strength and would provide greater accuracy and reliability of their connection with each other.

These problems are solved in a hollow building block containing an upper wall and at least three side walls, with at least one primary protrusion located on the outer side of the upper wall protruding from the upper wall substantially perpendicular to the portion of the upper wall on which it is located, at the same time, inside its cavity, the building block has at least two internal contact sections, which are located according to one primary protrusion or, respectively, at least two of the primary stupas and which are designed to contact respectively one or at least two primary protrusions of another building block, while the hollow building block contains at least one internal reinforcing protruding element, and at least one of the internal contact sections is located on one of the internal reinforcing protruding elements, while at least a portion of the internal reinforcing protruding element on which the contact portion is located is located within a distance, and Merenii from the lower surface of at least one of the side walls toward the top wall and a height equal to the primary ridge.

In the building block according to the invention, the hardening means and the means for accurately positioning the blocks relative to each other and improving their contact are combined in one element, which is an internal reinforcing protruding element with a contact section.

In such a building block, internal reinforcing protruding elements at the same time provide both a reduction in the thickness of the side walls of the building block, as they increase its resistance to bending and kink, acting as stiffeners, and increase the accuracy and reliability of connecting the blocks together, since the contact sections are located in These building blocks are not on the inner surface of the side wall, but on the protruding elements. The location of the contact areas on the protruding elements allows you to increase the tightness in the connected parts, i.e. reduce the space of the building block into which the primary protrusion of the other building block is to be inserted. When using blocks, the protruding element is abraded much more strongly and with less force than the portion of the inner surface of the side wall of the block, so the blocks during use will rub against each other without much effort, and their connection will be much more reliable than the connection of known blocks. In addition, due to the presence of internal reinforcing protruding elements in the building block according to the invention, it is possible to significantly reduce the wall thickness of the block in comparison with the known building blocks without reducing their resistance to bending and fracture, or to further increase the strength of building blocks.

The building block according to the invention has a simple and reliable design, which allows you to save material used in the manufacture of building blocks, without compromising the strength properties of building blocks.

In the manufacture of known building blocks with smooth inner surfaces of the side walls of blocks without protrusions, it is necessary to provide increased accuracy in the manufacture of blocks, since the primary protrusions of one block must be installed in the cavity of another building block and in contact with the walls of the first building block so that the blocks are in a connected state. However, with manufacturing inaccuracies, for example, if the thickness of the wall or primary protrusion is increased, i.e. the interference is very large, the connection of the blocks may become essentially impossible, or when connected, the blocks may break or deform. In the case of using positioning means in the form of protruding elements located on the inner sections of the block, intended for contact with the primary protrusions of another block, the above problem disappears. For example, in the case of increased interference when connecting the blocks, the effect on the walls of the blocks themselves is essentially minimal, since the main part of the impact is on the protruding elements, which, due to the smaller dimensions than the wall itself, will be deformed in the first place and thereby reduce the likelihood deformation or destruction of the wall of the block.

In addition, the walls themselves in this case can have a much smaller thickness than in known blocks.

Preferably, at least a portion of the surface of the inner reinforcing protruding element is smooth, even more preferably, the entire portion of the inner reinforcing element that is intended to contact the primary protrusion of another building block is smooth. This allows you to reduce the effort when connecting the blocks and to increase the contact spot between the contacting parts of the building blocks.

Preferably, the projection contours of the primary protrusion and that part of the at least one inner reinforcing protruding element on which the inner contact portion corresponding to the primary protrusion is located intersect on a plane parallel to the upper wall portion on which the primary protrusion is located. This allows you to create a connection of building blocks with interference, which contributes to their more reliable connection and increases the service life. Also in this case, the blocks reliably connect to each other without spontaneous disconnection, for example, under the action of gravity, for a much longer service life than the known building blocks.

Preferably, the projection contours of the primary protrusion and that part of the at least one inner reinforcing protruding element on which the inner contact portion corresponding to the primary protrusion is located are tangential to each other on a plane parallel to the upper wall portion on which the primary protrusion is located. This allows you to connect / disconnect building blocks, using less effort, but the building blocks will not spontaneously disconnect from each other.

Preferably, at least one of the vertical generators of the side surface of the primary protrusion and at least one of the vertical generators of the surface of the at least one inner contact portion corresponding to the primary protrusion lie on one straight line. This allows you to create a contact spot with the smallest area.

Preferably, the primary protrusion and at least one corresponding inner contact portion have a common tangent plane.

Preferably, the innermost vertical tangent plane to the side surface of the primary protrusion is further away from the outer block of the building block than the outermost vertical tangent plane to the surface of at least one inner contact portion corresponding to the primary protrusion.

Preferably, the tangent plane in which at least one outermost guide of the side surface of the primary protrusion lies and the tangent plane in which the innermost guide of the inner contact portion corresponding to the primary protrusion lies, are angled to each other.

Preferably, the intersection angle of said planes is from 1 ″ to 2 °.

Preferably, the intersection angle of said planes is from 1 ″ to 1 °.

Preferably, the intersection angle of said planes is from 1 ′ ′ to 30 ′.

Preferably, the intersection angle of said planes is from 1 ″ to 1 ″.

Preferably, the intersection angle of said planes is from 1 ″ to 30 ″.

The location of these planes at an angle to each other allows you to make the connection of the blocks even more reliable, and also allows you to simplify the installation of one block on another, as in this case, the protruding element has an inclined surface that facilitates the direction of the primary protrusion of one building block inside another building block.

Preferably, at least two side walls are located relative to each other at an angle from 30 ° to 150 °.

Preferably, at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °.

Preferably, at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °.

The location of the walls of the building block at different angles contributes to the expansion of the arsenal of building blocks for the construction of complex structures having various shapes and complex structure.

Preferably, the at least one side wall has at least one cutout and / or at least one recess.

Preferably, the cutout or recess corresponds in shape and / or size to the primary protrusion.

The location of the recesses corresponding to the primary protrusions on the inner side of the side walls allows you to create building blocks with inclined side walls, which can be connected to the building blocks of essentially any configuration containing primary protrusions, which correspond to the above recesses.

Preferably, the recesses are located on the outer and / or inner surface of the wall.

Preferably, at least one primary protrusion is located on at least one side wall.

The location of the primary protrusions not only on the upper wall, but also on the outer surface of the side walls allows building blocks to be attached not only to the upper part of the first building block, but also to its side, which expands the possibility of creating more possible structures.

Preferably, at least one side wall is positioned relative to the upper wall at an angle of 30 ° to 150 °.

Preferably, at least one side wall is positioned relative to the upper wall at an angle of 88 ° to 92 °, preferably at an angle of 89 ° to 91 °, more preferably at an angle of 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °.

The location of the side walls at an angle of 90 ° relative to the upper wall allows for accurate connection of the blocks and their adjustment relative to each other when installing one block right next to another. However, a slight deviation from 90 ° increases the reliability of the connection of the blocks, since the adjoining side walls of the blocks are installed with a slight tightness.

Preferably, at least one side wall is positioned relative to the upper wall at an angle of 43 ° to 47 °, preferably at an angle of 44 ° to 46 °, more preferably at an angle of 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °.

Preferably, at least one side wall is positioned relative to the upper wall at an angle of 133 ° to 137 °, preferably at an angle of 134 ° to 136 °, more preferably at an angle of 134 ° 59 ′ to 135 ° 1 ′, even more preferably at an angle 134 ° 59 ′ 59 ″ to 135 ° 0 ′ 1 ″, most preferably at an angle of 135 °.

Preferably, at least one side wall is smooth. Smooth walls allow one block to slide relative to another during installation, which facilitates the assembly of structures from such blocks.

Preferably, at least one side wall comprises a fastener.

Preferably, the fastener is a fork element.

Preferably, the fastener is a fastening protrusion.

Preferably, the at least one side wall has at least one through or blind hole. This reduces the consumption of material from which the block is made, and also expands the possibilities for connecting other building elements to the block, the elements of which can be installed in these holes.

Preferably, at least one side wall comprises a primary protrusion, in the center of which there is a through hole passing through said primary protrusion and the side wall on which it is located.

Preferably, the side surface of the primary protrusion has protruding elements.

Preferably, said protruding elements are evenly distributed on the side surface of the primary protrusion.

Preferably, the arrangement of at least one of said protruding elements corresponds to the arrangement of at least one inner contact portion.

Such protruding elements further increase the strength of the building block.

Preferably, the lateral surface of the primary protrusion is a cylindrical surface.

Preferably, the primary protrusion is a straight circular cylinder.

Preferably, the primary protrusion in the cross section is oval.

Preferably, the lateral surface of the primary protrusion is a prismatic surface.

Preferably, the primary protrusion is a direct prism.

Preferably, the primary protrusion is a rectangular box.

Preferably, the primary protrusion is incomplete. This increases the strength of the primary protrusion.

Preferably, the primary protrusion is hollow. This allows you to reduce the cost of material for the manufacture of the block.

Preferably, the upper end of the primary protrusion is open.

Preferably, the primary protrusion cavity is in communication with the cavity of the building block.

Preferably, the primary protrusion cavity in communication with the cavity of the building block forms a through substantially circular hole.

Such configurations of the primary protrusion allow it to be used not only for connection with another building block, but also with other elements, parts of which can be inserted into the above holes of the primary protrusions.

Preferably, the substantially circular hole has at least one segment filled with material from which the primary protrusion is made. This additionally strengthens the primary protrusion and allows more reliable fixation of any elements in the hole.

Preferably, the junction of the at least one side wall and the upper wall and / or the junction of the at least two side walls is rounded.

Preferably, at least one side wall and the upper wall and / or at least two side walls are connected to form an angle at the junction.

Preferably, the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered.

Preferably, at least one means for increasing the adhesion of the building block to the user's fingers is located on the outer surface of the building block. This prevents the building block from slipping out of the hands of the user during use, and also increases the strength of the primary protrusion and thus the building block itself.

Preferably, the finger grip means is located on the upper surface of the at least one primary protrusion.

Preferably, the finger grip means of the user is at least one protruding element.

Preferably, the protruding element is a cylindrical protrusion.

Preferably, said protruding element is an elongated element.

Preferably, said elongated element is substantially parallel to one of the side walls.

Preferably, said elongated element is positioned at an angle to one of the side walls.

Preferably, said angle is 45 °.

Preferably, the finger grip means of the user are a plurality of elongated mesh elements.

Preferably, the finger grip means is an adhesive applied to the upper surface of the primary protrusion, or a rough surface.

Preferably, the finger grip means of the user is at least one recess.

Preferably, the finger grip means is a single recess located in the center of the primary protrusion.

Preferably, said recess has a cylindrical shape.

Preferably, said recess has a conical shape.

The presence of recesses or holes in the primary protrusion allows the user to grip the block with fingers with his fingers so that part of the skin of the fingers penetrates these recesses or openings, which increases the spot of contact between the user's fingers and the block and thus improves the reliability of holding the block in the hands and prevents it from slipping out when manipulating the block.

Preferably, the finger grip means is a plurality of point protrusions distributed over the upper surface of the primary protrusion.

Preferably, the means for increasing traction with the fingers of the user is at least one protruding element made in the form of a letter.

Preferably, said protruding element is in the form of the letter “o”.

Preferably, said protruding element is in the form of the letter “x”.

Preferably, the building block comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall.

The presence of a secondary protrusion increases the strength of the building block and provides control of the installation depth of one block in another.

Preferably, the secondary protrusion forms a secondary wall extending from one side wall to the opposite side wall and connected to these walls.

Preferably, the secondary wall extends perpendicular to at least one side wall.

Preferably, the secondary wall is connected to the upper wall and extends downward from it to a height less than the height of at least one side wall.

Preferably, the secondary wall is connected to the upper wall and extends from it to the level of the lower surface of the at least one side wall so that the lower surfaces of the secondary wall and the specified side wall lie essentially in the same plane.

Preferably, at least one inner reinforcing protruding element is located on the secondary wall. This increases the strength of the block and the reliability of the connection blocks.

Preferably, two or more internal reinforcing protruding elements are arranged on the secondary wall.

Preferably, the internal reinforcing protruding elements are located on both sides of the secondary wall.

Preferably, the internal reinforcing protruding elements are evenly distributed over the secondary wall.

Preferably, the building block comprises four side walls and two secondary protrusions.

Preferably, the building block has a longitudinal axis, said secondary protrusions being arranged symmetrically with respect to the longitudinal axis of the building element.

Preferably, the secondary protrusions extend from one side wall to another side wall and are connected to them to form internal walls.

Preferably, the secondary protrusions extend from a location adjacent to one side wall to a meta located adjacent to another side wall, forming ribs.

Preferably, the secondary protrusions at the ends are rounded.

Preferably, the secondary protrusion is a cylindrical secondary protrusion.

Preferably, the secondary cylindrical protrusion reaches the level of the lower surface of at least one of the side walls so that the lower surface of the secondary cylindrical protrusion and the lower surface of the specified side wall essentially lie in the same plane.

Preferably, at least one of the secondary cylindrical protrusions is incomplete.

Preferably, at least one of the secondary cylindrical protrusions is hollow.

Preferably, the lower end of the at least one hollow secondary cylindrical protrusion is open.

Preferably, a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion.

Preferably, the cross section of said through hole is circular.

Preferably, the cross section of said through hole is square.

Preferably, the cross section of said through hole is in the form of a cross.

Preferably, at least one secondary cylindrical protrusion is connected to opposing side walls via internal walls.

Preferably, said inner walls are connected to the upper wall.

Preferably, the inner walls extend to the level of the lower surface of the secondary cylindrical protrusions so that the lower surfaces of the inner walls and the secondary cylindrical protrusions are substantially in the same plane.

Preferably, at least one of the inner contact portions is located on the outer side surface of the secondary cylindrical protrusion.

Preferably, at least one inner reinforcing protrusion is located on the secondary cylindrical protrusion.

Preferably, at least one inner contact portion is located on the inner reinforcing protruding member of the secondary cylindrical protrusion.

Preferably, at least one inner reinforcing protruding element is located on the inner side of the side wall.

Preferably, the building block comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows.

Preferably, the building block comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows.

Preferably, at least some of the primary protrusions are located at the vertices of the square that are located at the centers of said protrusions.

Preferably, at least some secondary cylindrical protrusions are located at the centers of the squares at the tops of which the centers of the primary protrusions are located.

Preferably, at least one secondary protrusion has at least one slot or at least one slot.

Preferably, the cross section of the at least one secondary protrusion is in the shape of a cross.

Preferably, the cross section of the at least one secondary protrusion is in the form of a substantially octagon, the straight sides of which alternate with the curved sides, which are part of a circle.

Preferably, the building block comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and having a thickness less than the thickness of these walls. This provides both additional hardening of the building block and facilitating the separation of the connected blocks, since there is a gap in the connected state between their side walls, so building blocks can be easily separated by placing any suitable element or nail in the gap.

Preferably, the building block is made of plastic.

Preferably, the building block is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS).

Also, the building block can be made of metal, steel or alloys. In addition, it can be made of gypsum, concrete, or even reinforced concrete.

Preferably, the parts of the building block are made of various materials or materials with different properties.

Preferably, the inner reinforcing protruding element is a rib.

Preferably, said rib has a rectangular cross section.

Preferably, said rib has a semicircular cross section. This further increases the strength of the ribs and helps to simplify the connection of the blocks.

Preferably, said rib has a semi-elliptical cross section.

Preferably, the inner reinforcing protruding element is a cylindrical protrusion whose axis is perpendicular to the portion from which it protrudes.

Preferably, the inner reinforcing protruding element is a hemisphere.

Preferably, on the bottom surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. This allows you to simplify the installation of one block on another, since these steps or slopes guide and center the installed block.

Preferably, at least one side wall on its inner side comprises an additional reinforcing protruding element extending along at least a portion of the inner surface of the side wall substantially parallel to the upper wall.

Preferably, the inner surface of the at least one side wall comprises a smooth portion.

Preferably, the inner surface of the at least one side wall comprises a rough portion.

Preferably, the smooth portion is located in the lower portion of the side wall and extends to the lower edge of the sidewall, and the roughened portion is located above the smooth portion and extends to the upper wall, with an additional protruding reinforcing element located in the rough portion, the wall thickness of the rough portion being greater than the wall thickness on a smooth stretch. This helps to simplify the installation of one block on another, since friction due to a smooth section is reduced and the need for processing or reduction in the quality of materials and casting for wall sections with rough sections is reduced.

Preferably, at least one side wall comprises an even number of internal reinforcing protruding elements extending from the upper wall to the lower edge of the side wall and having a substantially rectangular cross-section with rounded corners, with one additional reinforcing protruding element located between at least one a pair of internal reinforcing protruding elements.

Preferably, at least one protruding element is located on the inner surface of the upper wall.

Preferably, said protruding element is in the form of a letter or a number.

Another object of the invention is a hollow building block containing an upper wall and at least three side walls, with at least one primary protrusion located on the outer side of the upper wall protruding from the upper wall substantially perpendicular to the portion of the upper wall on which it is located , while inside its cavity, the building block has at least two internal contact sections, which are located respectively one primary protrusion or, respectively, at least two and primary ridge and which are intended for contact with respectively one or at least two primary ridges of another building block, characterized in that at least one of the primary ridge comprises at least one reinforcing member.

Preferably, the reinforcing element is a protruding element protruding from the upper surface of the primary protrusion.

Preferably, the reinforcing element is a reinforcing element located inside the primary protrusion.

Another object of the invention is a hollow building block containing an upper wall and at least three side walls, while at least two internal contact sections are arranged inside the cavity of the building block for contacting at least part of the side surface of the primary protrusions of the building blocks described above, characterized in that it comprises a reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls ok, and the reinforcing protruding element is located essentially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls.

Preferably, the outer surface of the upper wall is smooth.

Another object of the invention is a hollow building block containing an upper wall and at least three side walls, characterized in that at least one reinforcing element is located on the inner surface of at least one side wall and / or upper wall.

Preferably, the outer surface of the upper wall is smooth.

The above features can be appropriately combined in a building block.

Brief Description of the Drawings

In FIG. 1a shows an embodiment of the invention, a top view.

In FIG. 1b is a bottom view of the embodiment of FIG. 1a.

In FIG. 2a shows a section of a building block, bottom view.

In FIG. 2b shows another embodiment of a section of a building block, view

from below.

In FIG. 2c shows yet another embodiment of a building block site, a bottom view.

In FIG. 3a shows another embodiment of a building block, a sectional view.

In FIG. 3b shows another embodiment of a building block, a sectional view.

In FIG. 3c shows an embodiment of a building block in which the side wall and the inner surface of the inner protruding element are inclined relative to the vertical plane, a sectional view.

In FIG. 3d shows another embodiment of a building block, a sectional view.

In FIG. 3d shows an embodiment of a building block in which the inner protruding element extends from the upper wall to the lower surface of the side wall, sectional view.

In FIG. 4a shows a side wall connection option.

In FIG. 4b shows another embodiment of the side wall connection.

In FIG. 5a shows a building block in which a reinforcing protrusion is located in the lower part of the side wall, a sectional view.

In FIG. 5b shows another embodiment of the side wall, a sectional view.

In FIG. 5c shows an embodiment of a side wall with an internal bevel, a sectional view.

In FIG. 6a shows a side view of a building block.

In FIG. 6b shows a side view of another building block in which the height of the side walls is substantially equal to the height of the primary protrusions.

In FIG. 6c shows a top view of a building block with holes in the upper wall located between the primary protrusions.

In FIG. 6g shows a bottom view of a building block.

In FIG. 6d shows a bottom view of another embodiment of a building block containing additional internal walls.

In FIG. 6e shows another embodiment of a building block containing secondary protrusions and additional inner walls, bottom view.

In FIG. 6g shows another embodiment of a building block, bottom view.

In FIG. 6h shows a bottom view of a building block with primary protrusions in the form of longitudinal ribs.

In FIG. 7 shows an embodiment of the inner side of the side wall.

In FIG. 8a shows an embodiment of a primary protrusion.

In FIG. 8b shows another embodiment of the primary protrusion.

In FIG. 8c shows another embodiment of the primary protrusion.

In FIG. 8g shows another embodiment of the primary protrusion.

In FIG. 8d shows an embodiment of a primary protrusion with a reinforcing element.

In FIG. 9a shows a top view of an embodiment of a means for increasing traction with the fingers of a user located on a primary protrusion of a building block.

In FIG. 9b shows another embodiment of a means for increasing traction with the fingers of a user.

In FIG. 9c shows another embodiment of a means for increasing traction with the fingers of a user.

In FIG. 9g shows yet another embodiment of a means for increasing traction with the fingers of a user.

In FIG. 10 shows an embodiment of a building block with an inclined side wall, on the inside of which recesses are made.

The implementation of the invention

In FIG. 1a shows an embodiment of a hollow building block 1 according to the invention, comprising three side walls 3 and an upper wall 4, on which a primary protrusion 2 is located, protruding from the upper wall 4 upward essentially perpendicular to this upper wall 4.

In FIG. 1b shows a bottom view of the hollow building block 1 shown in FIG. 1a. On the inner side of one of the side walls 3 there is an internal reinforcing protruding element 6, on which one of the contact sections 7, intended for contact with the primary protrusion 2 of another building block, is located.

In FIG. 2a-2c show the arrangement of the inner reinforcing element 6 and the primary protrusion 2. In FIG. 2a shows an embodiment in which, in a plan view, the contours of the inner reinforcing element 6 and the primary protrusion 2 are in contact with each other to ensure that one building block is held on top of the other when they are connected. In FIG. 2b, these contours intersect to provide an interference fit for two building blocks.

In FIG. 2a and 2b show embodiments of an internal reinforcing protruding element 6 with a rectangular cross-section, wherein said element 6 can be made integrally with a building block, and can be made separate from it and attached to the building block, for example, by welding or welding.

The building block 1 itself can be made by injection molding of plastic. Also, the building block 1 can be made of metal, steel, alloys, etc.

In FIG. 2c shows an embodiment of the inner reinforcing protruding element 6 with a semicircular cross-section, the innermost tangent plane P1 to the element 6 being located in the inner direction of the building block further than the tangent plane P2, which is the outermost tangent plane to the primary protrusion 2.

In FIG. 3a shows a building block 1 in section along a plane passing through the middle of the primary protrusion 2, wherein the inner reinforcing protrusion element 6 is shown, for clarity, not in section. In this case, the generatrix of the lateral surface of the primary protrusion 2 and the generatrix of the inner reinforcing protruding element 6 lie in the same plane and on one straight line P.

In FIG. 3b shows another embodiment of the inner reinforcing protruding element 6, which is made in the form of a hemisphere protruding from the inner side of the side wall 3. In this embodiment of the building block, the tangent plane P to the element 6 is also tangent to the primary protrusion 2.

H FIG. 3c shows an embodiment of a building block 1, in which the side surface of the primary protrusion 2 is inclined away from the side wall 3. The inner reinforcing protruding element 6 also has an inclined surface 62, the inclination of which corresponds to the inclination of the side wall of the primary protrusion 2. This simplifies the connection procedure building blocks, since the installed building block is centered and guided by the inclined element 6 and the inclined side surface of the primary protrusion 2.

In FIG. 3d shows an embodiment of a building block in which the side surface of the primary protrusion 2 and the surface 62 of the inner reinforcing protruding element 6 are located at an angle to each other.

In FIG. 3a-3d show variants of internal reinforcing protruding elements 6, which extend from the lower edge of the side wall 3 and do not reach the upper wall 4, but extend towards the upper wall 4 by a distance that is equal to or greater than the height of the primary protrusion, or are located within the size measured from the lower edge of the side wall 3 towards the upper wall 4 and equal to the height of the primary protrusion 2.

In FIG. 3d shows an element 6, which extends from the lower edge of the side wall 6 to the upper wall 4, and its contact surface 62 and the guide of the primary protrusion 2 lie in the same plane P and on the same line.

The side walls of the building block can be connected at an angle of 90 °, as shown in FIG. 4a, but can be connected at a smaller angle or at a larger angle, as shown in FIG. 4b.

The building block 1 may include a reinforcing protrusion located below the side wall 3 or all of the side walls of the building block. This protrusion can be made in one piece with the wall in the manufacture of the building block, or can be performed on it after the manufacture of the building block itself. The thickness of the protrusion is less than the thickness of the side wall 3. For example, as shown in FIG. 5a, the reinforcing protrusion forms a ledge 8 with the wall 3. Also, the side wall 3 may contain various recesses or ledges, for example, a ledge 8 can immediately be made in the side wall during the manufacture of the building block.

In FIG. 5b shows a ledge 8 formed on the outer side of the side wall 3. This arrangement of the ledge 8 makes it easier to disconnect one block from another using any disconnect means or nail.

Building blocks usually have smooth side surfaces to fit more tightly together. In this case, the side walls of the building blocks, when they are connected together, form a substantially single wall with a very small gap between them. In this case, the separation of the blocks can be problematic, since it is very difficult to push any element into the slot, and the impact on the blocks by holding them by pressing while pressing the fingers to the side walls may not lead to the desired result, since the fingers will slide along smooth side surfaces blocks. Therefore, it is desirable that there is a larger gap or recess between the building blocks, so that it is possible to act on the blocks through the specified gap to separate them.

In addition, the side wall 3 may have a beveled portion located on the inner side of the side wall. As shown in FIG. 5c, the inner lower portion of the side wall 3 is beveled, forming a triangular recess 8 in cross section. Such a bevel on the lower inner surface of the side wall 3 makes it easier to connect the building blocks to each other, as it directs the primary protrusion 2 into the building block.

In FIG. 6a shows a side view of a building block 1, which contains 12 primary protrusions 2, and the height of the side wall 3 is significantly higher than the height of the primary protrusions 2. Preferably, the height of the side wall 3 is about 6 times the height of the primary protrusion 2. The height of the side wall 3 is from 6 to 12 mm, and the height of the primary protrusion is from 1 to 3 mm. For example, the height of the side wall from the lower surface of the side wall to the upper surface of the upper wall 4 may be approximately 9 mm, and the height of the primary protrusion 2 is approximately 1.5 mm.

In FIG. 6b shows a building block 1, in which the height of the primary protrusion 2 is approximately equal to the height of the side wall 3. Also, the height of the side wall, measured from the lower surface of the side wall 3 to the inner side of the upper wall 4, is approximately the height of the primary protrusion 2. For example, the height of the side wall 3, measured from the lower surface of the side wall to the outer upper surface of the upper wall 4 may be from 2 to 5 mm (preferably 3 mm), and the height of the primary protrusion may be from 1 to 4 mm, for example 1.5 mm.

Blind or through holes can be made in the upper wall 4. For example, as shown in FIG. 6c, the openings can be round or cross-shaped. They can be made anywhere in the upper wall 4, preferably in the center of the square formed by the four primary protrusions 2, as shown in FIG. 6c.

In FIG. 6g-6z shows embodiments of building blocks 1, bottom views. In FIG. 6d shows a building block, on the four side walls 3 of which are located internal reinforcing protruding elements 6. These elements can have any shape, in particular any of the above forms. In this embodiment, the elements 6 extend to the lower surface of the side walls 3. In the embodiment shown in FIG. 6d, the primary protrusions 2, which are located in the corners of the building block 6, correspond to two elements 6, and the rest only one.

In FIG. 6d shows another embodiment in which there are secondary protrusions 9 in the form of transverse walls extending essentially perpendicular to the side walls 3. Preferably, internal reinforcing protruding elements 6 are also located on the transverse walls 9. Moreover, the walls 9 can extend between all rows of primary protrusions 2, as shown in FIG. 6d to the left, and not between all, as shown in FIG. 6d to the right.

Secondary protrusions 9 can also be made in the form of cylinders protruding from the inner side of the upper wall 4, as shown in FIG. 6th. These secondary protrusions may be as hollow as shown in FIG. 6th, and incomplete. In this case, additional reinforcing walls 10 can depart from the secondary protrusions 9 towards the side walls, as shown in FIG. 6th and 6g.

In the primary projections 2, recesses or recesses 12 can also be made, as shown in FIG. 6g. The secondary protrusions may also contain internal reinforcing protruding elements 6, as shown on the leftmost secondary protrusion 9 in FIG. 6g. Secondary protrusions may also have cutouts so that they are more resilient and simplify the connection of building blocks, as shown in the central secondary protrusion in FIG. 6g.

Secondary protrusions can also be made in the form of longitudinal walls extending along the longitudinal axis x-x of the building block 1, as shown in FIG. 6h. Moreover, on the secondary protrusions can be located contact areas intended for contact with the primary protrusions of another building block.

The inner surface of the side wall 3 of the building block 1 can be completely smooth or completely rough, however, it can be made as shown in FIG. 7. This figure shows that the lower part of the inner surface of the side wall is smooth (33), and the rest is rough or embossed (34). The smooth surface preferably has a width corresponding to the height of the primary protrusions 2. In FIG. 7 also shows the location of the reinforcing protruding elements 6, which extend along the entire inner surface of the side wall, and they can be either completely smooth (left element 6) or partially smooth, as well as partially embossed or rough (right element 6).

Also in FIG. 7 shows the location of the additional reinforcing wall 10, which extends along a rough surface and slightly approaches a smooth surface, however, it may also reach the lower surface of the side wall, or may not enter the smooth part of the inner surface of the side wall, but only pass along the rough part.

In FIG. 8a-8d show embodiments of the primary protrusions 2. FIG. 8a shows an incomplete primary protrusion. In FIG. 8b, a primary protrusion 2 is shown in which a blind hole 12 is made, open upwards. In FIG. 8c shows a through hole 12 made in the primary protrusion 2. In FIG. 8 g shows the primary protrusion 2, in which a recess or blind hole 12 is made from the inside of the building block.

In FIG. 8d shows a primary protrusion 2, which is further hardened by a reinforcing element 22, which, for example, can be a metal insert.

In FIG. 9a-9g show building blocks 1 containing only one primary protrusion 2, on which there are examples of means for preventing slipping of the building block from the user's hands. For example, on the upper surface of the primary protrusion 2 shown in FIG. 9a, there is a means for increasing traction with the fingers of the user, made in the form of several ribs 21 located parallel to one of the side walls of block 1.

In FIG. 9b shows means 21 for improving traction with the fingers of the user, made in the form of a protruding element in the form of the letter "x".

Also, said means 21 can be made in the form of several point protrusions, as shown in FIG. 9th century or in the form of a grid of ribs, as shown in FIG. 9 g

In FIG. 10 shows an example of a building block 1 with one inclined side wall 3, on the inside of which there are recesses 33, which correspond to the primary protrusions of the building block with which the building block shown in FIG. 10.

In the building block of FIG. 10 there are no primary protrusions 2, however, it may contain them. In addition, the above-described building blocks may also not contain primary protrusions, i.e. their top surface may be substantially smooth. Also, the primary protrusions can be located not only on the upper wall of the building block, but also on the side walls or only on the side walls.

The invention may also relate to a system of building blocks interconnected, in particular mounted on top of each other.

The building block according to the invention or the building block system, in comparison with the known solutions, is more durable, provides a more reliable connection, requires less material for manufacturing, and also improves the sliding of one block relative to another when connecting one block to another. In addition, in the claimed blocks, a direct effect on the wall of the block is reduced or substantially eliminated, since the primary protrusions act on the internal protruding elements located on the wall, which, accordingly, even when creating a large force, which is still partially transmitted to the wall, provide the distribution of this effort on the wall, which reduces the impact on it compared with the direct impact on the wall, as in the known building blocks. The claimed blocks simplify the grinding of one block to another by ensuring the abrasion of the protruding reinforcing element, rather than a section of the wall, as it could be in known solutions.

Claims (702)

1. A hollow toy building block comprising an upper wall and at least three side walls, with at least one primary protrusion extending from the upper wall substantially perpendicular to the portion of the upper wall on which it is located on the outer side of the upper wall this, within its cavity, the toy building block has at least two internal contact areas, which are located respectively one primary protrusion or, respectively, at least two of the primary protrusions pov and which are intended to contact respectively with one or at least two primary protrusions of another toy building block, characterized in that it contains at least one internal reinforcing protruding element, and at least one of the internal contact sections is located on one of the internal reinforcing protruding elements, while the entire inner reinforcing protruding element on which the contact portion is located is located within a distance measured from the bottom overhnosti at least one of the side walls toward the top wall and a height equal to the primary projection or a part of said element extends from the bottom surface of one of the side walls to a height equal to the height of the primary projections. 2. The hollow toy building block according to claim 1, characterized in that the contours of the projections of the primary protrusion and that part of at least one internal reinforcing protruding element, on which is located an internal contact portion corresponding to the specified primary protrusion, onto a plane parallel to the upper wall portion, on which the specified primary protrusion is located, intersect. 3. The hollow toy building block according to claim 1, characterized in that the contours of the projections of the primary protrusion and that part of at least one inner reinforcing protruding element, on which the inner contact portion corresponding to the specified primary protrusion is located, on a plane parallel to the portion of the upper wall, on which the specified primary protrusion is located, touch each other. 4. The hollow toy building block according to claim 1, characterized in that at least one of the vertical generators of the lateral surface of the primary protrusion and at least one of the vertical generatrices of the surface of at least one inner contact portion corresponding to the specified primary protrusion lie on one straight line. 5. The hollow toy building block according to claim 1, characterized in that the primary protrusion and at least one corresponding inner contact portion have a common tangent plane. 6. The hollow toy building block according to claim 1, characterized in that the innermost vertical tangent plane to the side surface of the primary protrusion is in the outer direction of the toy building block further than the outermost vertical tangent plane to the surface of at least one inner contact portion, corresponding to the specified primary protrusion. 7. The hollow toy building block according to claim 1, characterized in that the tangent plane in which at least one outermost guide of the side surface of the primary protrusion lies, and the tangent plane in which the innermost guide of the inner contact portion corresponding to the specified primary protrusion, are located at an angle to each other. 8. The hollow toy building block according to claim 7, characterized in that the intersection angle of these planes is from 1 ″ to 2 °. 9. The hollow toy building block according to claim 8, characterized in that the intersection angle of these planes is from 1 ″ to 1 °. 10. The hollow toy building block according to claim 9, characterized in that the intersection angle of these planes is from 1 ″ to 30 ′. 11. The hollow toy building block according to claim 10, characterized in that the intersection angle of these planes is from 1 ″ to 1 ′. 12. The hollow toy building block according to claim 11, characterized in that the intersection angle of these planes is from 1 ″ to 30 ″. 13. The hollow toy building block according to claim 1, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 14. The hollow toy building block according to claim 2, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 15. The hollow toy building block according to claim 3, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 16. The hollow toy building block according to claim 4, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 17. The hollow toy building block according to claim 5, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 18. A hollow toy building block according to claim 6, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 19. The hollow toy building block according to claim 7, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 20. The hollow toy building block according to claim 8, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 21. The hollow toy building block according to claim 9, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 22. The hollow toy building block according to claim 10, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 23. The hollow toy building block according to claim 11, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 24. The hollow toy building block according to claim 12, characterized in that at least two side walls are located relative to each other at an angle from 30 ° to 150 °. 25. The hollow toy building block according to claim 13, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 26. The hollow toy building block according to claim 14, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 27. The hollow toy building block according to claim 15, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 28. The hollow toy building block according to claim 16, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 29. The hollow toy building block according to claim 17, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 30. The hollow toy building block according to claim 18, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 31. The hollow toy building block according to claim 19, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 32. The hollow toy building block according to claim 20, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 33. The hollow toy building block according to claim 21, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 34. The hollow toy building block according to claim 22, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 35. The hollow toy building block according to claim 23, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 36. The hollow toy building block according to claim 24, characterized in that at least two side walls are located relative to each other at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 37. The hollow toy building block according to claim 13, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 38. The hollow toy building block according to claim 14, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 39. The hollow toy building block according to claim 15, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 40. The hollow toy building block according to claim 16, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 41. The hollow toy building block according to claim 17, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 42. The hollow toy building block according to claim 18, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 43. The hollow toy building block according to claim 19, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 44. The hollow toy building block according to claim 20, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 45. The hollow toy building block according to claim 21, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 46. The hollow toy building block according to claim 22, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 47. The hollow toy building block according to claim 23, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 48. The hollow toy building block according to claim 24, characterized in that at least two side walls are located relative to each other at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 49. The hollow toy building block according to any one of paragraphs. 1-48, characterized in that at least one side wall has at least one cutout and / or at least one recess. 50. A hollow toy building block according to claim 49, characterized in that the cutout or recess corresponds in shape and / or size to the primary protrusion. 51. The hollow toy building block according to claim 49, characterized in that the recesses are located on the outer and / or on the inner surface of the wall. 52. The hollow toy building block according to claim 50, characterized in that the recesses are located on the outer and / or on the inner surface of the wall. 53. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, characterized in that at least one side wall is at least one primary protrusion. 54. A hollow toy building block according to claim 49, characterized in that at least one primary protrusion is located on at least one side wall. 55. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, characterized in that at least one side wall is located relative to the upper wall at an angle from 30 ° to 150 °. 56. The hollow toy building block according to claim 49, characterized in that at least one side wall is located relative to the upper wall at an angle from 30 ° to 150 °. 57. The hollow toy building block according to claim 53, characterized in that at least one side wall is located relative to the upper wall at an angle from 30 ° to 150 °. 58. The hollow toy building block according to claim 55, characterized in that at least one side wall is located relative to the upper wall at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 59. The hollow toy building block according to claim 56, characterized in that at least one side wall is located relative to the upper wall at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 60. The hollow toy building block according to claim 57, characterized in that at least one side wall is located relative to the upper wall at an angle from 88 ° to 92 °, preferably at an angle from 89 ° to 91 °, more preferably at an angle from 89 ° 59 ′ to 90 ° 1 ′, even more preferably at an angle of 89 ° 59 ′ 59 ″ to 90 ° 0 ′ 1 ″, most preferably at an angle of 90 °. 61. The hollow toy building block according to claim 55, characterized in that at least one side wall is located relative to the upper wall at an angle of 43 ° to 47 °, preferably at an angle of 44 ° to 46 °, more preferably at an angle of 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 62. The hollow toy building block according to claim 56, characterized in that at least one side wall is located relative to the upper wall at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 63. The hollow toy building block according to claim 57, characterized in that at least one side wall is located relative to the upper wall at an angle from 43 ° to 47 °, preferably at an angle from 44 ° to 46 °, more preferably at an angle from 44 ° 59 ′ to 45 ° 1 ′, even more preferably at an angle of 44 ° 59 ′ 59 ″ to 45 ° 0 ′ 1 ″, most preferably at an angle of 45 °. 64. The hollow toy building block according to claim 55, characterized in that at least one side wall is located relative to the upper wall at an angle from 133 ° to 137 °, preferably at an angle from 134 ° to 136 °, more preferably at an angle from 134 ° 59 ′ to 135 ° 1 ′, even more preferably at an angle of 134 ° 59 ′ 59 ″ to 135 ° 0 ′ 1 ″, most preferably at an angle of 135 °. 65. The hollow toy building block according to claim 56, characterized in that at least one side wall is located relative to the upper wall at an angle from 133 ° to 137 °, preferably at an angle from 134 ° to 136 °, more preferably at an angle from 134 ° 59 ′ to 135 ° 1 ′, even more preferably at an angle of 134 ° 59 ′ 59 ″ to 135 ° 0 ′ 1 ″, most preferably at an angle of 135 °. 66. The hollow toy building block according to claim 57, characterized in that at least one side wall is located relative to the upper wall at an angle from 133 ° to 137 °, preferably at an angle from 134 ° to 136 °, more preferably at an angle from 134 ° 59 ′ to 135 ° 1 ′, even more preferably at an angle of 134 ° 59 ′ 59 ″ to 135 ° 0 ′ 1 ″, most preferably at an angle of 135 °. 67. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, characterized in that at least one side wall is smooth. 68. The hollow toy building block according to claim 49, wherein the at least one side wall is smooth. 69. The hollow toy building block according to claim 53, wherein the at least one side wall is smooth. 70. The hollow toy building block according to claim 55, wherein the at least one side wall is smooth. 71. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, characterized in that at least one side wall contains a fastener. 72. The hollow toy building block according to claim 49, wherein the at least one side wall comprises a fastener. 73. The hollow toy building block according to claim 53, wherein the at least one side wall comprises a fastener. 74. The hollow toy building block according to claim 55, wherein the at least one side wall comprises a fastener. 75. The hollow toy building block according to claim 71, characterized in that the fastening element is a fork element. 76. The hollow toy building block according to claim 72, characterized in that the fastening element is a fork element. 77. The hollow toy building block according to claim 73, characterized in that the fastening element is a fork element. 78. A hollow toy building block according to claim 74, characterized in that the fastening element is a fork element. 79. The hollow toy building block according to claim 71, characterized in that the fastener is a fastening protrusion. 80. The hollow toy building block according to claim 72, wherein the fastener is a fastening protrusion. 81. A hollow toy building block according to claim 73, characterized in that the fastening element is a fastening protrusion. 82. A hollow toy building block according to claim 74, characterized in that the fastening element is a fastening protrusion. 83. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, characterized in that at least one side wall has at least one through or blind hole. 84. The hollow toy building block according to claim 49, characterized in that at least one side wall has at least one through or blind hole. 85. The hollow toy building block according to claim 53, wherein the at least one side wall has at least one through or blind hole. 86. The hollow toy building block according to claim 55, characterized in that at least one side wall has at least one through or blind hole. 87. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, characterized in that at least one side wall contains a primary protrusion, in the center of which there is a through hole passing through the specified primary protrusion and the side wall on which it is located. 88. The hollow toy building block according to claim 49, wherein the at least one side wall comprises a primary protrusion, in the center of which there is a through hole passing through said primary protrusion and the side wall on which it is located. 89. The hollow toy building block according to claim 53, wherein the at least one side wall comprises a primary protrusion, in the center of which there is a through hole passing through the primary protrusion and the side wall on which it is located. 90. The hollow toy building block according to claim 55, wherein the at least one side wall comprises a primary protrusion, in the center of which there is a through hole passing through said primary protrusion and the side wall on which it is located. 91. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, characterized in that the side surface of the primary protrusion has protruding elements. 92. The hollow toy building block according to claim 49, characterized in that the lateral surface of the primary protrusion has protruding elements. 93. The hollow toy building block according to claim 53, wherein the lateral surface of the primary protrusion has protruding elements. 94. The hollow toy building block according to claim 55, characterized in that the side surface of the primary protrusion has protruding elements. 95. The hollow toy building block according to claim 67, characterized in that the lateral surface of the primary protrusion has protruding elements. 96. A hollow toy building block according to claim 71, characterized in that the side surface of the primary protrusion has protruding elements. 97. The hollow toy building block according to claim 83, characterized in that the side surface of the primary protrusion has protruding elements. 98. The hollow toy building block according to claim 91, characterized in that said protruding elements are evenly distributed on the side surface of the primary protrusion. 99. The hollow toy building block according to claim 92, characterized in that said protruding elements are evenly distributed along the side surface of the primary protrusion. 100. A hollow toy building block according to claim 93, characterized in that said protruding elements are evenly distributed on the side surface of the primary protrusion. 101. The hollow toy building block according to claim 94, characterized in that said protruding elements are evenly distributed along the side surface of the primary protrusion. 102. A hollow toy building block according to claim 95, characterized in that said protruding elements are evenly distributed on the side surface of the primary protrusion. 103. The hollow toy building block according to claim 96, characterized in that said protruding elements are evenly distributed along the side surface of the primary protrusion. 104. The hollow toy building block according to claim 97, characterized in that said protruding elements are evenly distributed along the side surface of the primary protrusion. 105. The hollow toy building block according to claim 91, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 106. The hollow toy building block according to claim 92, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 107. The hollow toy building block according to claim 93, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 108. The hollow toy building block according to claim 94, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 109. The hollow toy building block according to claim 95, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 110. The hollow toy building block according to claim 96, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 111. The hollow toy building block according to claim 97, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 112. The hollow toy building block according to claim 98, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 113. The hollow toy building block according to claim 99, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 114. The hollow toy building block according to claim 100, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 115. The hollow toy building block according to claim 101, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 116. The hollow toy building block according to claim 102, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 117. The hollow toy building block according to claim 103, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 118. The hollow toy building block according to claim 104, characterized in that the location of at least one of these protruding elements corresponds to the location of at least one internal contact area. 119. The hollow toy building block according to any one of paragraphs. 1-6, 13-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, characterized in that the lateral surface of the primary protrusion is a cylindrical surface. 120. The hollow toy building block according to claim 49, wherein the lateral surface of the primary protrusion is a cylindrical surface. 121. The hollow toy building block according to claim 53, wherein the lateral surface of the primary protrusion is a cylindrical surface. 122. A hollow toy building block according to claim 55, characterized in that the side surface of the primary protrusion is a cylindrical surface. 123. The hollow toy building block according to claim 67, wherein the side surface of the primary protrusion is a cylindrical surface. 124. The hollow toy building block according to claim 71, wherein the lateral surface of the primary protrusion is a cylindrical surface. 125. The hollow toy building block according to claim 83, wherein the lateral surface of the primary protrusion is a cylindrical surface. 126. The hollow toy building block according to claim 119, characterized in that the primary protrusion is a straight circular cylinder. 127. The hollow toy building block according to claim 120, characterized in that the primary protrusion is a straight circular cylinder. 128. The hollow toy building block according to Claim 121, wherein the primary protrusion is a straight circular cylinder. 129. The hollow toy building block according to claim 122, characterized in that the primary protrusion is a straight circular cylinder. 130. The hollow toy building block according to claim 123, characterized in that the primary protrusion is a straight circular cylinder. 131. The hollow toy building block according to claim 124, characterized in that the primary protrusion is a straight circular cylinder. 132. The hollow toy building block according to claim 125, characterized in that the primary protrusion is a straight circular cylinder. 133. The hollow toy building block according to claim 119, characterized in that the primary protrusion in the section has an oval shape. 134. The hollow toy building block according to claim 120, characterized in that the primary protrusion in the section has an oval shape. 135. The hollow toy building block according to claim 121, characterized in that the primary protrusion in the section has an oval shape. 136. The hollow toy building block according to claim 122, characterized in that the primary protrusion in the section has an oval shape. 137. The hollow toy building block according to claim 123, characterized in that the primary protrusion in the section has an oval shape. 138. The hollow toy building block according to claim 124, characterized in that the primary protrusion in the section has an oval shape. 139. The hollow toy building block according to claim 125, characterized in that the primary protrusion in the section has an oval shape. 140. The hollow toy building block according to claim 119, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 141. The hollow toy building block according to claim 120, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 142. A hollow toy building block according to claim 121, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 143. The hollow toy building block according to claim 122, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 144. The hollow toy building block according to claim 123, wherein the lateral surface of the primary protrusion is a prismatic surface. 145. The hollow toy building block according to claim 124, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 146. The hollow toy building block according to claim 125, characterized in that the lateral surface of the primary protrusion is a prismatic surface. 147. The hollow toy building block according to claim 140, characterized in that the primary protrusion is a direct prism. 148. The hollow toy building block according to claim 141, characterized in that the primary protrusion is a direct prism. 149. The hollow toy building block according to claim 142, characterized in that the primary protrusion is a direct prism. 150. A hollow toy building block according to claim 143, characterized in that the primary protrusion is a direct prism. 151. The hollow toy building block according to claim 144, characterized in that the primary protrusion is a direct prism. 152. A hollow toy building block according to Claim 145, wherein the primary protrusion is a direct prism. 153. The hollow toy building block according to claim 146, characterized in that the primary protrusion is a direct prism. 154. The hollow toy building block according to claim 147, characterized in that the primary protrusion is a rectangular parallelepiped. 155. A hollow toy building block according to claim 148, characterized in that the primary protrusion is a rectangular parallelepiped. 156. The hollow toy building block according to claim 149, characterized in that the primary protrusion is a rectangular parallelepiped. 157. The hollow toy building block according to claim 150, characterized in that the primary protrusion is a rectangular parallelepiped. 158. The hollow toy building block according to p. 151, characterized in that the primary protrusion is a rectangular parallelepiped. 159. The hollow toy building block according to claim 152, characterized in that the primary protrusion is a rectangular parallelepiped. 160. The hollow toy building block according to p. 153, characterized in that the primary protrusion is a rectangular parallelepiped. 161. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, characterized in that the primary protrusion is incomplete. 162. A hollow toy building block according to claim 49, wherein the primary protrusion is incomplete. 163. The hollow toy building block according to claim 53, wherein the primary protrusion is incomplete. 164. A hollow toy building block according to claim 55, wherein the primary protrusion is incomplete. 165. The hollow toy building block according to claim 67, wherein the primary protrusion is incomplete. 166. The hollow toy building block according to Claim 71, wherein the primary protrusion is incomplete. 167. The hollow toy building block according to Claim 83, wherein the primary protrusion is incomplete. 168. The hollow toy building block according to claim 87, wherein the primary protrusion is incomplete. 169. The hollow toy building block according to Claim 91, wherein the primary protrusion is incomplete. 170. The hollow toy building block according to claim 119, characterized in that the primary protrusion is incomplete. 171. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, characterized in that the primary protrusion is hollow. 172. A hollow toy building block according to claim 49, wherein the primary protrusion is hollow. 173. The hollow toy building block according to claim 53, wherein the primary protrusion is hollow. 174. A hollow toy building block according to claim 55, wherein the primary protrusion is hollow. 175. The hollow toy building block according to claim 67, wherein the primary protrusion is hollow. 176. The hollow toy building block according to Claim 71, wherein the primary protrusion is hollow. 177. The hollow toy building block according to claim 83, wherein the primary protrusion is hollow. 178. The hollow toy building block according to claim 87, wherein the primary protrusion is hollow. 179. The hollow toy building block according to claim 91, wherein the primary protrusion is hollow. 180. A hollow toy building block according to claim 119, characterized in that the primary protrusion is hollow. 181. The hollow toy building block according to claim 171, characterized in that the upper end of the primary protrusion is open. 182. The hollow toy building block according to any one of paragraphs. 172-180, characterized in that the upper end of the primary protrusion is open. 183. The hollow toy building block according to claim 171, characterized in that the cavity of the primary protrusion communicates with the cavity of the toy building block. 184. The hollow toy building block according to any one of paragraphs. 172-181, characterized in that the cavity of the primary protrusion is in communication with the cavity of the toy building block. 185. The hollow toy building block according to claim 182, characterized in that the cavity of the primary protrusion communicates with the cavity of the toy building block. 186. The hollow toy building block according to claim 183, characterized in that the cavity of the primary protrusion communicated with the cavity of the toy building block forms a through substantially circular hole. 187. The hollow toy building block according to claim 184, characterized in that the cavity of the primary protrusion in communication with the cavity of the toy building block forms a through substantially circular hole. 188. The hollow toy building block according to claim 185, characterized in that the cavity of the primary protrusion communicated with the cavity of the toy building block forms a through substantially circular hole. 189. The hollow toy building block according to claim 186, characterized in that the essentially circular hole has at least one segment filled with material from which the primary protrusion is made. 190. The hollow toy building block according to claim 187, characterized in that the substantially circular hole has at least one segment filled with material from which the primary protrusion is made. 191. The hollow toy building block according to claim 188, characterized in that the essentially circular hole has at least one segment filled with material from which the primary protrusion is made. 192. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 193. The hollow toy building block according to claim 49, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 194. The hollow toy building block according to claim 53, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 195. The hollow toy building block according to claim 55, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 196. The hollow toy building block according to claim 67, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 197. The hollow toy building block according to claim 71, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 198. The hollow toy building block according to claim 83, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 199. The hollow toy building block according to claim 87, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 200. The hollow toy building block according to claim 91, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 201. The hollow toy building block according to claim 119, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 202. The hollow toy building block according to claim 161, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 203. The hollow toy building block according to claim 171, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 204. The hollow toy building block according to claim 182, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 205. The hollow toy building block according to claim 184, characterized in that the junction of at least one side wall and the upper wall and / or the junction of at least two side walls is rounded. 206. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 207. The hollow toy building block according to claim 49, wherein the at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 208. The hollow toy building block according to claim 53, wherein the at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 209. The hollow toy building block according to claim 55, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 210. The hollow toy building block according to claim 67, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 211. The hollow toy building block according to claim 71, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 212. The hollow toy building block according to claim 83, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 213. The hollow toy building block according to claim 87, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 214. The hollow toy building block according to claim 91, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 215. The hollow toy building block according to claim 119, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 216. The hollow toy building block according to claim 161, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 217. The hollow toy building block according to claim 171, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 218. The hollow toy building block according to claim 182, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 219. A hollow toy building block according to claim 184, characterized in that at least one side wall and the upper wall and / or at least two side walls are connected, forming an angle at the junction. 220. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 221. The hollow toy building block according to claim 49, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 222. The hollow toy building block according to claim 53, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 223. The hollow toy building block according to claim 55, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 224. The hollow toy building block according to claim 67, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 225. The hollow toy building block according to claim 71, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 226. The hollow toy building block according to claim 83, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 227. The hollow toy building block according to claim 87, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 228. The hollow toy building block according to claim 91, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 229. The hollow toy building block according to claim 119, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 230. The hollow toy building block according to claim 161, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 231. The hollow toy building block according to claim 171, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 232. A hollow toy building block according to claim 182, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 233. The hollow toy building block according to claim 184, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 234. The hollow toy building block according to claim 192, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or beveled. 235. The hollow toy building block according to claim 206, characterized in that the junction of the upper surface of the primary protrusion and its side surface is rounded or chamfered. 236. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, characterized in that at least one means of increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 237. The hollow toy building block according to claim 49, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 238. The hollow toy building block according to claim 53, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 239. The hollow toy building block according to claim 55, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 240. The hollow toy building block according to claim 67, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 241. The hollow toy building block according to claim 71, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 242. The hollow toy building block according to claim 83, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 243. The hollow toy building block according to claim 87, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 244. The hollow toy building block according to claim 91, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 245. The hollow toy building block according to claim 119, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 246. The hollow toy building block according to claim 161, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 247. The hollow toy building block according to claim 171, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 248. The hollow toy building block according to claim 182, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 249. The hollow toy building block according to claim 184, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 250. The hollow toy building block according to claim 192, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 251. The hollow toy building block according to claim 206, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 252. The hollow toy building block according to claim 220, characterized in that at least one means for increasing the adhesion of the toy building block to the user's fingers is located on the outer surface of the toy building block. 253. The hollow toy building block according to claim 236, characterized in that the means for increasing traction with the fingers of the user is located on the upper surface of at least one primary protrusion. 254. The hollow toy building block according to any one of paragraphs. 237-252, characterized in that the means for increasing traction with the fingers of the user is located on the upper surface of at least one primary protrusion. 255. The hollow toy building block according to claim 253, characterized in that the means for increasing traction with the fingers of the user is at least one protruding element. 256. A hollow toy building block according to claim 254, characterized in that the means for increasing traction with the fingers of the user is at least one protruding element. 257. The hollow toy building block according to claim 255, characterized in that said protruding element is a cylindrical protrusion. 258. The hollow toy building block according to claim 256, characterized in that said protruding element is a cylindrical protrusion. 259. The hollow toy building block according to claim 255, characterized in that said protruding element is an elongated element. 260. The hollow toy building block according to claim 256, characterized in that said protruding element is an elongated element. 261. The hollow toy building block according to claim 259, characterized in that said elongated element is located essentially parallel to one of the side walls. 262. A hollow toy building block according to claim 260, characterized in that said elongated element is located essentially parallel to one of the side walls. 263. The hollow toy building block according to claim 259, characterized in that said elongated element is located at an angle to one of the side walls. 264. A hollow toy building block according to claim 260, characterized in that said elongated element is located at an angle to one of the side walls. 265. The hollow toy building block according to claim 263, characterized in that said angle is 45 °. 266. The hollow toy building block according to claim 264, characterized in that said angle is 45 °. 267. The hollow toy building block according to p. 253, characterized in that the means for increasing traction with the fingers of the user are several oblong elements that form a grid. 268. The hollow toy building block according to p. 254, characterized in that the means for increasing traction with the fingers of the user are a few elongated elements that form a grid. 269. The hollow toy building block according to claim 253, characterized in that the means for increasing traction with the fingers of the user is an adhesive applied to the upper surface of the primary protrusion, or a rough surface. 270. The hollow toy building block according to claim 254, characterized in that the means for increasing traction with the fingers of the user is an adhesive applied to the upper surface of the primary protrusion, or a rough surface. 271. The hollow toy building block according to claim 253, characterized in that the means for increasing traction with the fingers of the user is at least one recess. 272. A hollow toy building block according to claim 254, characterized in that the means for increasing traction with the fingers of the user is at least one recess. 273. The hollow toy building block according to p. 271, characterized in that the means for increasing traction with the fingers of the user is a single recess located in the center of the primary protrusion. 274. The hollow toy building block according to claim 272, characterized in that the means for increasing traction with the fingers of the user is a single recess located in the center of the primary protrusion. 275. The hollow toy building block according to claim 271, characterized in that said recess has a cylindrical shape. 276. The hollow toy building block according to claim 272, characterized in that said recess has a cylindrical shape. 277. The hollow toy building block according to claim 273, characterized in that said recess has a cylindrical shape. 278. A hollow toy building block according to claim 274, characterized in that said recess has a cylindrical shape. 279. The hollow toy building block according to claim 271, characterized in that said recess has a conical shape. 280. The hollow toy building block according to claim 272, characterized in that said recess has a conical shape. 281. The hollow toy building block according to claim 273, characterized in that said recess has a conical shape. 282. A hollow toy building block according to claim 274, characterized in that said recess has a conical shape. 283. The hollow toy building block according to claim 253, characterized in that the means for increasing traction with the fingers of the user is a plurality of point protrusions distributed over the upper surface of the primary protrusion. 284. The hollow toy building block according to claim 254, characterized in that the means for increasing traction with the fingers of the user is a plurality of point protrusions distributed over the upper surface of the primary protrusion. 285. The hollow toy building block according to p. 253, characterized in that the means for increasing traction with the fingers of the user is at least one protruding element made in the form of a letter. 286. A hollow toy building block according to claim 254, characterized in that the means for increasing traction with the fingers of the user is at least one protruding element made in the form of a letter. 287. The hollow toy building block according to p. 285, characterized in that said protruding element is made in the form of the letter ″ about ″. 288. The hollow toy building block according to p. 285, characterized in that said protruding element is made in the form of the letter ″ x ″. 289. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, characterized in that it contains at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular top wall. 290. The hollow toy building block according to claim 49, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 291. The hollow toy building block according to claim 53, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 292. The hollow toy building block according to claim 55, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 293. The hollow toy building block according to claim 67, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 294. The hollow toy building block according to claim 71, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 295. The hollow toy building block according to claim 83, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 296. The hollow toy building block according to claim 87, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 297. The hollow toy building block according to claim 91, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 298. The hollow toy building block according to claim 119, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 299. The hollow toy building block according to claim 161, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 300. The hollow toy building block according to claim 171, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 301. The hollow toy building block according to claim 182, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 302. A hollow toy building block according to claim 184, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 303. The hollow toy building block according to claim 192, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 304. The hollow toy building block according to claim 206, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 305. The hollow toy building block according to claim 220, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall substantially perpendicular to the upper wall. 306. A hollow toy building block according to claim 236, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 307. The hollow toy building block according to claim 254, characterized in that it comprises at least one secondary protrusion protruding from the inner side of the upper wall and / or the inclined side wall essentially perpendicular to the upper wall. 308. The hollow toy building block according to claim 289, characterized in that the secondary protrusion forms a secondary wall extending from one side wall to the opposite side wall and connected to these walls. 309. The hollow toy building block according to any one of paragraphs. 290-307, characterized in that the secondary protrusion forms a secondary wall extending from one side wall to the opposite side wall and connected to these walls. 310. A hollow toy building block according to claim 308, characterized in that the secondary wall extends perpendicular to at least one side wall. 311. A hollow toy building block according to claim 309, characterized in that the secondary wall extends perpendicular to at least one side wall. 312. The hollow toy building block according to claim 308, characterized in that the secondary wall is connected to the upper wall and extends from it down to a height less than the height of at least one side wall. 313. The hollow toy building block according to claim 309, characterized in that the secondary wall is connected to the upper wall and extends from it down to a height less than the height of at least one side wall. 314. A hollow toy building block according to claim 310, characterized in that the secondary wall is connected to the upper wall and extends downward from it to a height less than the height of at least one side wall. 315. The hollow toy building block according to claim 311, characterized in that the secondary wall is connected to the upper wall and extends from it down to a height less than the height of at least one side wall. 316. The hollow toy building block according to claim 308, characterized in that the secondary wall is connected to the upper wall and extends from it to the level of the lower surface of the at least one side wall so that the lower surfaces of the secondary wall and the specified side wall lie essentially in one plane. 317. The hollow toy building block according to claim 309, wherein the secondary wall is connected to the upper wall and extends from it to the level of the lower surface of at least one side wall so that the lower surfaces of the secondary wall and the specified side wall lie essentially in one plane. 318. The hollow toy building block according to claim 310, characterized in that the secondary wall is connected to the upper wall and extends from it to the level of the lower surface of at least one side wall so that the lower surfaces of the secondary wall and the specified side wall lie essentially in one plane. 319. The hollow toy building block according to claim 311, characterized in that the secondary wall is connected to the upper wall and extends from it to the level of the lower surface of the at least one side wall so that the lower surfaces of the secondary wall and the specified side wall lie essentially in one plane. 320. The hollow toy building block according to any one of paragraphs. 308, 310-319, characterized in that at least one internal reinforcing protruding element is located on the secondary wall. 321. A hollow toy building block according to claim 309, characterized in that at least one internal reinforcing protruding element is located on the secondary wall. 322. A hollow toy building block according to claim 320, characterized in that two or more internal reinforcing protruding elements are located on the secondary wall. 323. A hollow toy building block according to claim 321, characterized in that two or more internal reinforcing protruding elements are located on the secondary wall. 324. A hollow toy building block according to claim 322, characterized in that the internal reinforcing protruding elements are located on both sides of the secondary wall. 325. The hollow toy building block according to claim 323, characterized in that the internal reinforcing protruding elements are located on both sides of the secondary wall. 326. A hollow toy building block according to claim 322, characterized in that the internal reinforcing protruding elements are evenly distributed along the secondary wall. 327. A hollow toy building block according to claim 323, characterized in that the internal reinforcing protruding elements are evenly distributed along the secondary wall. 328. A hollow toy building block according to claim 324, characterized in that the internal reinforcing protruding elements are evenly distributed along the secondary wall. 329. A hollow toy building block according to claim 325, characterized in that the internal reinforcing protruding elements are evenly distributed along the secondary wall. 330. A hollow toy building block according to claim 289, characterized in that it contains four side walls and two secondary protrusions. 331. The hollow toy building block according to any one of paragraphs. 290-307, characterized in that it contains four side walls and two secondary protrusions. 332. The hollow toy building block according to claim 330, wherein the toy building block has a longitudinal axis, said secondary protrusions being arranged symmetrically with respect to the longitudinal axis of the toy building block. 333. The hollow toy building block according to claim 331, wherein the toy building block has a longitudinal axis, said secondary protrusions being arranged symmetrically with respect to the longitudinal axis of the toy building block. 334. A hollow toy building block according to claim 330, characterized in that the secondary protrusions extend from one side wall to another side wall and are connected to them, forming internal walls. 335. A hollow toy building block according to claim 331, characterized in that the secondary protrusions extend from one side wall to another side wall and are connected to them, forming internal walls. 336. The hollow toy building block according to claim 332, characterized in that the secondary protrusions extend from one side wall to another side wall and are connected to them, forming internal walls. 337. The hollow toy building block according to claim 333, characterized in that the secondary protrusions extend from one side wall to another side wall and are connected to them, forming internal walls. 338. A hollow toy building block according to claim 330, characterized in that the secondary protrusions extend from a place adjacent to one side wall to a meta located next to another side wall, forming ribs. 339. A hollow toy building block according to claim 331, characterized in that the secondary protrusions extend from a place located next to one side wall to a meta located next to another side wall, forming ribs. 340. A hollow toy building block according to claim 332, characterized in that the secondary protrusions extend from a place located next to one side wall to a meta located next to another side wall, forming ribs. 341. A hollow toy building block according to claim 333, characterized in that the secondary protrusions extend from a place adjacent to one side wall to a meta located next to another side wall, forming ribs. 342. A hollow toy building block according to claim 338, characterized in that the secondary protrusions at the ends are rounded. 343. A hollow toy building block according to claim 339, characterized in that the secondary protrusions at the ends are rounded. 344. A hollow toy building block according to claim 340, characterized in that the secondary protrusions at the ends are rounded. 345. The hollow toy building block according to claim 341, characterized in that the secondary protrusions at the ends are rounded. 346. The hollow toy building block according to p. 289, characterized in that the secondary protrusion is a cylindrical secondary protrusion. 347. The hollow toy building block according to any one of paragraphs. 290-307, characterized in that the secondary protrusion is a cylindrical secondary protrusion. 348. The hollow toy building block according to claim 346, characterized in that the secondary cylindrical protrusion reaches the level of the lower surface of at least one of the side walls so that the lower surface of the secondary cylindrical protrusion and the lower surface of the specified side wall essentially lie in the same plane . 349. The hollow toy building block according to claim 347, characterized in that the secondary cylindrical protrusion reaches the level of the lower surface of at least one of the side walls so that the lower surface of the secondary cylindrical protrusion and the lower surface of the specified side wall essentially lie in the same plane . 350. A hollow toy building block according to claim 346, characterized in that at least one of the secondary cylindrical protrusions is incomplete. 351. A hollow toy building block according to claim 347, characterized in that at least one of the secondary cylindrical protrusions is incomplete. 352. A hollow toy building block according to claim 348, characterized in that at least one of the secondary cylindrical protrusions is incomplete. 353. A hollow toy building block according to claim 349, characterized in that at least one of the secondary cylindrical protrusions is incomplete. 354. A hollow toy building block according to claim 346, characterized in that at least one of the secondary cylindrical protrusions is hollow. 355. A hollow toy building block according to claim 347, characterized in that at least one of the secondary cylindrical protrusions is hollow. 356. A hollow toy building block according to claim 348, characterized in that at least one of the secondary cylindrical protrusions is hollow. 357. A hollow toy building block according to claim 349, characterized in that at least one of the secondary cylindrical protrusions is hollow. 358. The hollow toy building block according to claim 354, characterized in that the lower end of the at least one hollow secondary cylindrical protrusion is open. 359. The hollow toy building block according to claim 355, characterized in that the lower end of the at least one hollow secondary cylindrical protrusion is open. 360. The hollow toy building block according to claim 356, characterized in that the lower end of the at least one hollow secondary cylindrical protrusion is open. 361. The hollow toy building block according to claim 357, characterized in that the lower end of the at least one hollow secondary cylindrical protrusion is open. 362. The hollow toy building block according to claim 354, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 363. The hollow toy building block according to claim 355, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 364. The hollow toy building block according to claim 356, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 365. A hollow toy building block according to claim 357, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 366. The hollow toy building block according to claim 358, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 367. The hollow toy building block according to claim 359, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 368. The hollow toy building block according to claim 360, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 369. The hollow toy building block according to claim 361, characterized in that a through hole is made in the upper wall, which communicates with the cavity of the hollow secondary cylindrical protrusion. 370. The hollow toy building block according to any one of paragraphs. 362-369, characterized in that the cross section of said through hole is circular. 371. The hollow toy building block according to any one of paragraphs. 362-369, characterized in that the cross section of said through hole is square. 372. The hollow toy building block according to any one of paragraphs. 362-369, characterized in that the cross section of said through hole has the shape of a cross. 373. The hollow toy building block according to any one of paragraphs. 346, 348-369, characterized in that at least one secondary cylindrical protrusion is connected to opposite side walls using internal walls. 374. The hollow toy building block according to claim 347, characterized in that at least one secondary cylindrical protrusion is connected to opposite side walls using internal walls. 375. The hollow toy building block according to claim 370, characterized in that at least one secondary cylindrical protrusion is connected to opposite side walls using internal walls. 376. The hollow toy building block according to claim 371, characterized in that at least one secondary cylindrical protrusion is connected to opposite side walls using internal walls. 377. The hollow toy building block according to claim 372, characterized in that at least one secondary cylindrical protrusion is connected to opposite side walls using internal walls. 378. The hollow toy building block according to claim 373, characterized in that said inner walls are connected to the upper wall. 379. The hollow toy building block according to any one of paragraphs. 374-377, characterized in that the said inner walls are connected to the upper wall. 380. The hollow toy building block according to claim 373, characterized in that the inner walls extend to the level of the lower surface of the secondary cylindrical protrusions so that the lower surfaces of the inner walls and the secondary cylindrical protrusions are essentially in the same plane. 381. The hollow toy building block according to any one of paragraphs. 374-378, characterized in that the inner walls reach the level of the lower surface of the secondary cylindrical protrusions so that the lower surfaces of the inner walls and secondary cylindrical protrusions are essentially in the same plane. 382. The hollow toy building block according to claim 379, characterized in that the inner walls extend to the level of the lower surface of the secondary cylindrical protrusions so that the lower surfaces of the inner walls and the secondary cylindrical protrusions are essentially in the same plane. 383. The hollow toy building block according to any one of paragraphs. 346, 348-369, 374-378, 380, 382, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 384. The hollow toy building block according to claim 347, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 385. The hollow toy building block according to claim 370, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 386. A hollow toy building block according to claim 371, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 387. The hollow toy building block according to claim 372, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 388. A hollow toy building block according to claim 373, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 389. The hollow toy building block according to claim 379, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 390. The hollow toy building block according to claim 381, characterized in that at least one of the internal contact sections is located on the outer side surface of the secondary cylindrical protrusion. 391. The hollow toy building block according to any one of paragraphs. 346, 348-369, 374-378, 380, 382, characterized in that at least one internal reinforcing protruding element is located on the secondary cylindrical protrusion. 392. The hollow toy building block according to claim 347, characterized in that at least one internal reinforcing protruding element is located on the secondary cylindrical protrusion. 393. The hollow toy building block according to claim 370, characterized in that at least one internal reinforcing protruding element is located on the secondary cylindrical protrusion. 394. The hollow toy building block according to claim 371, characterized in that at least one inner reinforcing protruding element is located on the secondary cylindrical protrusion. 395. The hollow toy building block according to claim 372, characterized in that at least one inner reinforcing protruding element is located on the secondary cylindrical protrusion. 396. The hollow toy building block according to claim 373, characterized in that at least one inner reinforcing protruding element is located on the secondary cylindrical protrusion. 397. The hollow toy building block according to claim 379, characterized in that at least one internal reinforcing protruding element is located on the secondary cylindrical protrusion. 398. The hollow toy building block according to claim 381, characterized in that at least one inner reinforcing protruding element is located on the secondary cylindrical protrusion. 399. The hollow toy building block according to claim 391, characterized in that at least one inner contact portion is located on the inner reinforcing protruding element of the secondary cylindrical protrusion. 400. The hollow toy building block according to any one of paragraphs. 392-398, characterized in that at least one inner contact portion is located on the inner reinforcing protruding element of the secondary cylindrical protrusion. 401. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 402. A hollow toy building block according to claim 49, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 403. The hollow toy building block according to claim 53, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 404. A hollow toy building block according to claim 55, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 405. The hollow toy building block according to claim 67, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 406. A hollow toy building block according to claim 71, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 407. The hollow toy building block according to claim 83, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 408. The hollow toy building block according to claim 87, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 409. The hollow toy building block according to claim 91, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 410. A hollow toy building block according to claim 119, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 411. The hollow toy building block according to claim 161, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 412. A hollow toy building block according to claim 171, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 413. The hollow toy building block according to claim 182, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 414. A hollow toy building block according to claim 184, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 415. The hollow toy building block according to claim 192, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 416. The hollow toy building block according to claim 206, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 417. The hollow toy building block according to claim 220, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 418. The hollow toy building block according to claim 236, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 419. The hollow toy building block according to claim 254, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 420. A hollow toy building block according to claim 309, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 421. A hollow toy building block according to claim 320, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 422. A hollow toy building block according to claim 331, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 423. The hollow toy building block according to claim 347, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 424. A hollow toy building block according to claim 370, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 425. The hollow toy building block according to claim 371, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 426. A hollow toy building block according to claim 372, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 427. A hollow toy building block according to claim 373, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 428. A hollow toy building block according to claim 379, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 429. The hollow toy building block according to claim 381, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 430. A hollow toy building block according to claim 383, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 431. The hollow toy building block according to claim 391, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 432. A hollow toy building block according to claim 400, characterized in that at least one inner reinforcing protruding element is located on the inner side of the side wall. 433. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-345, characterized in that it contains several primary protrusions located in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 434. The hollow toy building block according to claim 49, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 435. The hollow toy building block according to claim 53, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 436. The hollow toy building block according to claim 55, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 437. The hollow toy building block according to claim 67, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 438. The hollow toy building block according to claim 71, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 439. The hollow toy building block according to claim 83, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 440. A hollow toy building block according to claim 87, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 441. The hollow toy building block according to claim 91, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 442. A hollow toy building block according to claim 119, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 443. The hollow toy building block according to claim 161, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 444. The hollow toy building block according to claim 171, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 445. The hollow toy building block according to claim 182, characterized in that it comprises several primary protrusions located in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 446. The hollow toy building block according to claim 184, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 447. The hollow toy building block according to claim 192, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 448. The hollow toy building block according to claim 206, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 449. The hollow toy building block according to claim 220, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 450. The hollow toy building block according to claim 236, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 451. The hollow toy building block according to Claim 254, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 452. A hollow toy building block according to claim 309, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 453. The hollow toy building block according to claim 320, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 454. A hollow toy building block according to claim 331, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 455. The hollow toy building block according to any one of paragraphs. 346, 348-369, 374-378, 380, 382, 384-390, 392-399, characterized in that it contains several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in specified rows. 456. A hollow toy building block according to claim 347, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 457. The hollow toy building block according to claim 370, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 458. The hollow toy building block according to claim 371, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 459. A hollow toy building block according to claim 372, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 460. A hollow toy building block according to claim 373, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 461. The hollow toy building block according to claim 379, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 462. A hollow toy building block according to claim 381, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 463. The hollow toy building block according to claim 383, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 464. The hollow toy building block according to claim 391, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 465. A hollow toy building block according to claim 400, characterized in that it comprises several primary protrusions arranged in straight rows extending along one of the side walls, the primary protrusions being evenly distributed in said rows. 466. The hollow toy building block according to claim 433, characterized in that the centers of at least some of the primary protrusions are arranged so that they form the vertices of the square. 467. The hollow toy building block according to any one of paragraphs. 434-454, characterized in that the centers of at least some of the primary protrusions are located so that they form the vertices of the square. 468. A hollow toy building block according to claim 455, characterized in that the centers of at least some of the primary protrusions are arranged so that they form the vertices of the square. 469. The hollow toy building block according to any one of paragraphs. 456-465, characterized in that the centers of at least some of the primary protrusions are arranged so that they form the vertices of the square. 470. The hollow toy building block according to claim 468, characterized in that the centers of at least some of the primary protrusions are arranged so that they form the vertices of the square. 471. The hollow toy building block according to claim 469, characterized in that the centers of at least some of the primary protrusions are arranged so that they form the vertices of the square. 472. A hollow toy building block according to any one of paragraphs. 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, characterized in that at least one secondary protrusion has at least at least one cut or at least one cut. 473. The hollow toy building block according to claim 309, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 474. A hollow toy building block according to claim 320, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 475. The hollow toy building block according to claim 331, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 476. A hollow toy building block according to claim 347, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 477. The hollow toy building block according to claim 370, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 478. The hollow toy building block according to claim 371, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 479. The hollow toy building block according to claim 372, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 480. The hollow toy building block according to claim 373, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 481. The hollow toy building block according to claim 379, wherein the at least one secondary protrusion has at least one slot or at least one cutout. 482. A hollow toy building block according to claim 381, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 483. The hollow toy building block according to claim 383, wherein the at least one secondary protrusion has at least one slot or at least one cutout. 484. The hollow toy building block according to claim 391, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 485. The hollow toy building block according to claim 400, characterized in that at least one secondary protrusion has at least one slot or at least one cutout. 486. The hollow toy building block according to p. 289, characterized in that the cross section of at least one secondary protrusion has the shape of a cross. 487. The hollow toy building block according to any one of paragraphs. 290-307, characterized in that the cross section of at least one secondary protrusion has the shape of a cross. 488. The hollow toy building block according to claim 289, characterized in that the cross section of the at least one secondary protrusion has a substantially octagonal shape, the straight sides of which alternate with the curved sides representing a part of the circle. 489. The hollow toy building block according to any one of paragraphs. 290-307, characterized in that the cross section of the at least one secondary protrusion has a substantially octagonal shape, the straight sides of which alternate with the curved sides, which are part of a circle. 490. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, 402-432, 434-454, 456-466, 468, 470, 471, 473-486, 488, characterized in that it contains an additional reinforcing protruding element extending along the entire lower surface of the side walls essentially perpendicular to the bottom surface of these walls, and the reinforcing protruding element is essentially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 491. The hollow toy building block according to claim 49, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 492. The hollow toy building block according to claim 53, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 493. The hollow toy building block according to claim 55, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 494. The hollow toy building block according to claim 67, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 495. The hollow toy building block according to claim 71, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 496. The hollow toy building block according to claim 83, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 497. The hollow toy building block according to claim 87, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 498. The hollow toy building block according to claim 91, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 499. The hollow toy building block according to claim 119, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 500. The hollow toy building block according to claim 161, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 501. The hollow toy building block according to claim 171, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 502. The hollow toy building block according to claim 182, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 503. The hollow toy building block according to claim 184, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 504. The hollow toy building block according to claim 192, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 505. The hollow toy building block according to claim 206, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 506. The hollow toy building block according to claim 220, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 507. The hollow toy building block according to claim 236, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 508. The hollow toy building block according to claim 254, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 509. The hollow toy building block according to claim 309, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 510. The hollow toy building block according to claim 320, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 511. The hollow toy building block according to claim 331, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 512. The hollow toy building block according to claim 347, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 513. The hollow toy building block according to claim 370, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 514. The hollow toy building block according to claim 371, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 515. The hollow toy building block according to claim 372, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 516. The hollow toy building block according to claim 373, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 517. The hollow toy building block according to claim 379, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 518. The hollow toy building block according to claim 381, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 519. The hollow toy building block according to claim 383, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 520. The hollow toy building block according to claim 391, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 521. A hollow toy building block according to claim 400, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 522. The hollow toy building block according to claim 433, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 523. The hollow toy building block according to claim 455, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 524. The hollow toy building block according to claim 467, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 525. The hollow toy building block according to claim 469, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 526. A hollow toy building block according to claim 472, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 527. The hollow toy building block according to claim 487, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 528. The hollow toy building block according to claim 489, characterized in that it comprises an additional reinforcing protruding element extending along the entire lower surface of the side walls substantially perpendicular to the lower surface of these walls, the reinforcing protruding element being substantially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls. 529. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, 402-432, 434-454, 456-466, 468, 470, 471, 473-486, 488, 491-528, characterized in that it is made of plastic. 530. A hollow toy building block according to claim 49, characterized in that it is made of plastic. 531. The hollow toy building block according to claim 53, characterized in that it is made of plastic. 532. A hollow toy building block according to claim 55, characterized in that it is made of plastic. 533. A hollow toy building block according to claim 67, characterized in that it is made of plastic. 534. A hollow toy building block according to claim 71, characterized in that it is made of plastic. 535. A hollow toy building block according to claim 83, characterized in that it is made of plastic. 536. The hollow toy building block according to claim 87, characterized in that it is made of plastic. 537. A hollow toy building block according to claim 91, characterized in that it is made of plastic. 538. A hollow toy building block according to claim 119, characterized in that it is made of plastic. 539. A hollow toy building block according to claim 161, characterized in that it is made of plastic. 540. A hollow toy building block according to claim 171, characterized in that it is made of plastic. 541. A hollow toy building block according to claim 182, characterized in that it is made of plastic. 542. A hollow toy building block according to claim 184, characterized in that it is made of plastic. 543. A hollow toy building block according to claim 192, characterized in that it is made of plastic. 544. A hollow toy building block according to claim 206, characterized in that it is made of plastic. 545. A hollow toy building block according to claim 220, characterized in that it is made of plastic. 546. A hollow toy building block according to claim 236, characterized in that it is made of plastic. 547. A hollow toy building block according to claim 254, characterized in that it is made of plastic. 548. A hollow toy building block according to claim 309, characterized in that it is made of plastic. 549. A hollow toy building block according to claim 320, characterized in that it is made of plastic. 550. A hollow toy building block according to claim 331, characterized in that it is made of plastic. 551. A hollow toy building block according to claim 347, characterized in that it is made of plastic. 552. A hollow toy building block according to claim 370, characterized in that it is made of plastic. 553. A hollow toy building block according to claim 371, characterized in that it is made of plastic. 554. A hollow toy building block according to claim 372, characterized in that it is made of plastic. 555. A hollow toy building block according to claim 373, characterized in that it is made of plastic. 556. A hollow toy building block according to claim 379, characterized in that it is made of plastic. 557. A hollow toy building block according to claim 381, characterized in that it is made of plastic. 558. A hollow toy building block according to claim 383, characterized in that it is made of plastic. 559. A hollow toy building block according to claim 391, characterized in that it is made of plastic. 560. A hollow toy building block according to claim 400, characterized in that it is made of plastic. 561. A hollow toy building block according to claim 433, characterized in that it is made of plastic. 562. A hollow toy building block according to claim 455, characterized in that it is made of plastic. 563. The hollow toy building block according to claim 467, characterized in that it is made of plastic. 564. A hollow toy building block according to claim 469, characterized in that it is made of plastic. 565. A hollow toy building block according to claim 472, characterized in that it is made of plastic. 566. A hollow toy building block according to claim 487, characterized in that it is made of plastic. 567. A hollow toy building block according to claim 489, characterized in that it is made of plastic. 568. A hollow toy building block according to claim 490, characterized in that it is made of plastic. 569. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, 402-432, 434-454, 456-466, 468, 470, 471, 473-486, 488, 491-528, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 570. The hollow toy building block according to claim 49, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 571. The hollow toy building block according to claim 53, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 572. The hollow toy building block according to claim 55, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 573. The hollow toy building block according to claim 67, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 574. The hollow toy building block according to claim 71, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 575. The hollow toy building block according to claim 83, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 576. The hollow toy building block according to claim 87, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 577. A hollow toy building block according to claim 91, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 578. The hollow toy building block according to claim 119, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 579. The hollow toy building block according to claim 161, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 580. The hollow toy building block according to claim 171, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 581. The hollow toy building block according to claim 182, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 582. A hollow toy building block according to claim 184, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 583. The hollow toy building block according to claim 192, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 584. The hollow toy building block according to claim 206, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 585. The hollow toy building block according to claim 220, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 586. A hollow toy building block according to claim 236, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 587. The hollow toy building block according to claim 254, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 588. A hollow toy building block according to claim 309, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 589. A hollow toy building block according to claim 320, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 590. The hollow toy building block according to claim 331, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 591. The hollow toy building block according to claim 347, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 592. The hollow toy building block according to claim 370, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). I 593. The hollow toy building block according to claim 371, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 594. The hollow toy building block according to claim 372, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 595. The hollow toy building block according to claim 373, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 596. The hollow toy building block according to claim 379, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 597. The hollow toy building block according to claim 381, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 598. The hollow toy building block according to claim 383, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 599. A hollow toy building block according to claim 391, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 600. A hollow toy building block according to claim 400, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 601. A hollow toy building block according to claim 433, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 602. A hollow toy building block according to claim 455, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 603. The hollow toy building block according to claim 467, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 604. A hollow toy building block according to claim 469, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 605. The hollow toy building block according to claim 472, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 606. The hollow toy building block according to claim 487, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 607. The hollow toy building block according to claim 489, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 608. A hollow toy building block according to claim 490, characterized in that it is made of resin based on a copolymer of acrylonitrile with butadiene and styrene (ABS). 609. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, 402-432, 434-454, 456-466, 468, 470, 471, 473-486, 488, 491-528, characterized in that its parts are made of various materials or from materials with various properties. 610. A hollow toy building block according to claim 49, characterized in that its parts are made of various materials or materials with different properties. 611. A hollow toy building block according to claim 53, characterized in that its parts are made of various materials or materials with different properties. 612. A hollow toy building block according to claim 55, characterized in that its parts are made of various materials or materials with different properties. 613. A hollow toy building block according to claim 67, characterized in that its parts are made of various materials or materials with different properties. 614. A hollow toy building block according to claim 71, characterized in that its parts are made of various materials or materials with different properties. 615. A hollow toy building block according to claim 83, characterized in that its parts are made of various materials or materials with various properties. 616. A hollow toy building block according to claim 87, characterized in that its parts are made of various materials or materials with different properties. 617. A hollow toy building block according to claim 91, characterized in that its parts are made of various materials or materials with different properties. 618. A hollow toy building block according to claim 119, characterized in that its parts are made of various materials or materials with different properties. 619. A hollow toy building block according to claim 161, characterized in that its parts are made of various materials or materials with different properties. 620. A hollow toy building block according to claim 171, characterized in that its parts are made of various materials or materials with different properties. 621. A hollow toy building block according to claim 182, characterized in that its parts are made of various materials or materials with different properties. 622. A hollow toy building block according to claim 184, characterized in that its parts are made of various materials or materials with different properties. 623. A hollow toy building block according to claim 192, characterized in that its parts are made of various materials or materials with different properties. 624. A hollow toy building block according to claim 206, characterized in that its parts are made of various materials or materials with different properties. 625. A hollow toy building block according to claim 220, characterized in that its parts are made of various materials or materials with different properties. 626. A hollow toy building block according to claim 236, characterized in that its parts are made of various materials or from materials with different properties. 627. A hollow toy building block according to claim 254, characterized in that its parts are made of various materials or materials with different properties. 628. A hollow toy building block according to claim 309, characterized in that its parts are made of various materials or materials with different properties. 629. A hollow toy building block according to claim 320, characterized in that its parts are made of various materials or materials with different properties. 630. A hollow toy building block according to claim 331, characterized in that its parts are made of various materials or materials with different properties. 631. A hollow toy building block according to claim 347, characterized in that its parts are made of various materials or materials with different properties. 632. A hollow toy building block according to claim 370, characterized in that its parts are made of various materials or materials with different properties. 633. A hollow toy building block according to claim 371, characterized in that its parts are made of various materials or materials with different properties. 634. A hollow toy building block according to claim 372, characterized in that its parts are made of various materials or materials with different properties. 635. A hollow toy building block according to claim 373, characterized in that its parts are made of various materials or materials with different properties. 636. A hollow toy building block according to claim 379, characterized in that its parts are made of various materials or materials with different properties. 637. A hollow toy building block according to claim 381, characterized in that its parts are made of various materials or materials with different properties. 638. A hollow toy building block according to claim 383, characterized in that its parts are made of various materials or materials with different properties. 639. A hollow toy building block according to claim 391, characterized in that its parts are made of various materials or materials with different properties. 640. A hollow toy building block according to claim 400, characterized in that its parts are made of various materials or of materials with different properties. 641. A hollow toy building block according to claim 433, characterized in that its parts are made of various materials or materials with different properties. 642. A hollow toy building block according to claim 455, characterized in that its parts are made of various materials or materials with different properties. 643. A hollow toy building block according to claim 467, characterized in that its parts are made of various materials or of materials with different properties. 644. A hollow toy building block according to claim 469, characterized in that its parts are made of various materials or materials with different properties. 645. A hollow toy building block according to claim 472, characterized in that its parts are made of various materials or materials with different properties. 646. A hollow toy building block according to claim 487, characterized in that its parts are made of various materials or materials with different properties. 647. A hollow toy building block according to claim 489, characterized in that its parts are made of various materials or of materials with different properties. 648. A hollow toy building block according to claim 490, characterized in that its parts are made of various materials or of materials with different properties. 649. The hollow toy building block according to claim 1, characterized in that the inner reinforcing protruding element is a rib. 650. A hollow toy building block according to claim 649, characterized in that said rib has a rectangular cross section. 651. A hollow toy building block according to claim 649, characterized in that said rib has a semicircular cross section. 652. A hollow toy building block according to claim 649, characterized in that said rib has a semi-elliptical cross section. 653. The hollow toy building block according to claim 1, characterized in that the inner reinforcing protruding element is a cylindrical protrusion, the axis of which is perpendicular to the section from which it protrudes. 654. The hollow toy building block according to claim 1, characterized in that the inner reinforcing protruding element is a hemisphere. 655. The hollow toy building block according to any one of paragraphs. 1-48, 50-52, 54, 56-66, 68-70, 72-82, 84-86, 88-90, 92-118, 120-160, 162-170, 172-181, 183, 185- 191, 193-205, 207-219, 221-235, 237-253, 255-288, 290-308, 310-319, 321-330, 332-346, 348-369, 374-378, 380, 382, 384-390, 392-399, 402-432, 434-454, 456-466, 468, 470, 471, 473-486, 488, characterized in that on the bottom surface of at least one side wall there is a ledge or bevel, located on the inside of the side wall. 656. The hollow toy building block according to claim 49, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 657. The hollow toy building block according to claim 53, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 658. The hollow toy building block according to claim 55, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 659. The hollow toy building block according to claim 67, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 660. The hollow toy building block according to claim 71, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 661. The hollow toy building block according to claim 83, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 662. The hollow toy building block according to claim 87, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 663. A hollow toy building block according to claim 91, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 664. A hollow toy building block according to claim 119, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 665. A hollow toy building block according to claim 161, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 666. A hollow toy building block according to claim 171, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 667. A hollow toy building block according to claim 182, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 668. A hollow toy building block according to claim 184, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 669. The hollow toy building block according to claim 192, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 670. A hollow toy building block according to claim 206, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 671. A hollow toy building block according to claim 220, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 672. A hollow toy building block according to claim 236, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 673. A hollow toy building block according to claim 254, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 674. A hollow toy building block according to claim 309, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 675. A hollow toy building block according to claim 320, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 676. A hollow toy building block according to claim 331, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 677. A hollow toy building block according to claim 347, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 678. A hollow toy building block according to claim 370, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 679. A hollow toy building block according to claim 371, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 680. A hollow toy building block according to claim 372, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 681. The hollow toy building block according to claim 373, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 682. A hollow toy building block according to claim 379, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 683. The hollow toy building block according to claim 381, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 684. A hollow toy building block according to claim 383, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 685. The hollow toy building block according to claim 391, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 686. A hollow toy building block according to claim 400, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 687. The hollow toy building block according to claim 433, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 688. A hollow toy building block according to claim 455, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 689. The hollow toy building block according to claim 467, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 690. A hollow toy building block according to claim 469, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 691. The hollow toy building block according to claim 472, characterized in that on the lower surface of the at least one side wall there is a ledge or bevel located on the inside of the side wall. 692. A hollow toy building block according to claim 487, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inner side of the side wall. 693. The hollow toy building block according to claim 489, characterized in that on the lower surface of at least one side wall there is a ledge or bevel located on the inside of the side wall. 694. The hollow toy building block according to claim 1, characterized in that at least one side wall on its inner side comprises an additional reinforcing protruding element extending along at least part of the inner surface of the side wall substantially parallel to the upper wall. 695. The hollow toy building block according to any one of paragraphs. 1 or 694, characterized in that the inner surface of the at least one side wall contains a smooth section. 696. The hollow toy building block according to any one of paragraphs. 1 or 694, characterized in that the inner surface of at least one side wall contains a rough portion. 697. The hollow toy building block according to claim 695, characterized in that the inner surface of the at least one side wall comprises a rough portion. 698. A hollow toy building block according to claim 695, characterized in that the smooth section is located in the lower part of the side wall and reaches the lower edge of the side wall, and the rough section is located above the smooth section and reaches the upper wall, with an additional protruding reinforcing element located on a rough section, and the wall thickness on the rough section is greater than the wall thickness on the smooth section. 699. The hollow toy building block according to claim 698, wherein the at least one side wall comprises an even number of internal reinforcing protruding elements extending from the upper wall to the lower edge of the side wall and having a substantially rectangular cross-section with rounded corners while one additional reinforcing protruding element is located between at least one pair of internal reinforcing protruding elements. 700. The hollow toy building block according to any one of paragraphs. 1 or 699, characterized in that at least one protruding element is located on the inner surface of the upper wall. 701. The hollow toy building block according to claim 700, characterized in that said protruding element is made in the form of a letter or number. 702. A hollow toy building block comprising an upper wall, wherein the outer surface of the upper wall is smooth and at least three side walls, with at least two internal contact areas disposed within the cavity of the toy building block for contacting at least part of the side surface of the primary protrusions of the toy building blocks according to any one of paragraphs. 1-701, characterized in that it contains a reinforcing protruding element extending along the entire lower surface of the side walls essentially perpendicular to the lower surface of these walls, and the reinforcing protruding element is essentially flush with the inner surfaces of the side walls and has a thickness less than the thickness of these walls.

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