SK7023Y1 - Assembled flooring and method of its manufacture - Google Patents

Abstract

Floor panels (1, 2, 3) comprises connecting cavities (4) arranged out of a face of the one lateral side to the other. Panels (1, 2, 3) are fixed with connection mean (5) of fixed connection with mandrel, part of which is fixed in the connecting cavity (4) of the first panel (1) and the other part in the body of adjacent second panel (2). Connecting cavities (4) are bored in the panes (1, 2, 3) in a row with regular intervals. By stoking panes (1, 2, 3) together and the recess of the mandrels through connecting cavities (4) floating floor is made.

Description

The technical solution relates to a floor assembled from parts such as a floating floor, a deck floor and a panel industrial floor. A new structural design of floor panels and floors made from them is proposed and also a method of production of prefabricated floors using the designed structural design of floors is proposed.

BACKGROUND OF THE INVENTION

The classic type of flooring is simple wood flooring and tongue groove. Simple boards are a flooring solution in which the boards are stacked side by side on the backing and fastened directly to the backing by means of screws or nails running through the boards in a top-down direction. The fastening means, usually screws or nails, are positioned in the vertical direction and the heads of the nails or screws remain on the face of the plates. Laying is simple, by gradually placing in place and nailing or drilling screws, possibly with pre-drilling holes.

In the case of perod grooves, a structural solution is used to strengthen the joint and to reduce joints in which a groove is formed on the side of each plate in the longitudinal direction and a tongue is formed on the adjacent side adjacent to the adjacent plate. The manufacturing process is also very simple. A plate formed by a flat substrate or a supporting structure is supported by one plate next to the other while the tongue is inserted into the groove, whereupon the plate is pressed or returned to the plate perpendicularly across the face of the plate or obliquely through the tongue at the joint.

A major disadvantage of these types of flooring is the fact that the flooring material cannot work when the material dries, changes in temperature or changes in humidity. The individual boards are firmly attached to the substrate and cannot be displaced as necessary during expansion, resulting in undesirable cracks and cracks in the floor or convexities on the finished floor. Another disadvantage of these floors is the lack of visibility caused by the clearly visible heads of screws or nails, which is no longer acceptable in the modem interior.

Another type of flooring nowadays widely used are so-called. floating floors. These are floors assembled from parts as planar formations, in which the individual parts are joined together using different types of locks. By uniting the individual parts together while pushing the interlocking locks together, a uniform unit is gradually formed. Making such a floor is very easy, just adjust the length of the parts and after applying and pressing the parts themselves snap into place. A free expansion joint is left at the edges of the room, which is visually covered by a cover strip. There is nothing to prevent the individual parts from moving on the mat. The work of the material and its dilatation manifests itself in the first years of operation of the floor only by increasing or decreasing the free edges of the finished area. As a rule, a change occurs several times during a calendar year, and therefore these floors are also referred to as floating. The connecting means, locks, consist in dovetail or otherwise engaging shaping of the side walls of the panels. Many types of these locks are already on the market.

For example, CZ U 10645 discloses a wooden structural floating floor made of tongue and groove type grooves. The tongue of the plates has a horizontal upper surface, the lower surface of the animal has an angle of 13 to 17 degrees with the upper surface. The tongue thickness at its base is 40 to 50% of the board thickness and the length of the tongue on its upper surface is 65 to 80% of the board thickness. At the same time, the upper straight shoulder of the groove has a thickness of 25 to 35% of the plate thickness.

Another example of a floating floor is described in EP 1 350 904 B2. A profile is described for perpendicular connection of at least two floor elements along a perpendicular movement plane, provided with an upper side, a lower side, two longitudinal sides and two front sides, the profile having both a groove and a tongue and on the groove and tongues respectively locking elements which hold at least two connected flooring elements in their vertical association.

Floating floors with locks have the disadvantage that over time there is a local spreading of individual parts with the consequence of unsightly joints or cracking of the connecting locks. This is due to the fact that when installed with furniture and other loads and / or with a large floor area, the displacement of the individual parts on the mat is limited and uneven. In this case, locally spacing or breaking the joint for the floor is easier than swimming. These disadvantages are particularly evident with wooden floors, which are, however, significantly more expensive than laminate, particleboard and other artificial materials. However, wood is a natural material and has many other benefits such as breathability, beautiful appearance, and others, so it is considered to be the highest quality and therefore hypothetically desired material.

Other known floor joints such as glued joints, joints by means of interposed dowel pins, by interposed spacer decorative layer, and the like have the same disadvantages.

SK 7023-1

The essence of the technical solution

These disadvantages are eliminated by the technical solution. A new constructional solution and a method of manufacturing a prefabricated floor of the type of planar formation consisting of a layer of flat parts, juxtaposed and having each face and back face are proposed. The essence of the novel construction of this floor is that at least some of the panels have at least one connecting cavity formed therein, extending outside the face of the panel at varying or invariant distances to its face from one side to the other side, i.e. over the entire panel, and this in the direction of a line directed to the adjacent member. Adjacent parts are connected to each other by at least one connection means fixedly connected to the mandrel, one part of which is located in the connection cavity of the first part and the other part extends from the connection cavity into the body of the second, adjacent part where it is fixedly fixed.

The connection cavity according to the invention is either in the form of an opening in the part or in the form of a groove made as a recess in the back surface of the part.

The connecting cavity preferably has at least two different diameters, of which a larger diameter for passing the head of the connection means of the rigid connection to the head, for example for the screw head, and a smaller diameter for the mandrel of this means, for example for the screw shank. The use of screws as connecting means is not a requirement, alternatively, for example, screw fasteners, nails or the like can be used for hammering or nailing, two-piece fasteners with different types of nuts such as furniture fasteners, anchors and others.

The connection cavity extends from one side to the other over the entire panel. It may be of low inclination, for example for easier assembly with a low downward inclination. With the advantage of simple manufacturing and the elimination of the risk of undesirable cracking during assembly or heavy load on the floor, the connection cavity runs parallel to the plane of the face of the component.

Advantageously, the mounting cavity is made to extend through the component in its transverse direction.

The recess of the head of the connection means can advantageously be solved according to the invention as follows. At least one of the pair of interconnected members may be at least a portion of the connecting cavity or cavities for receiving the pin of the attachment means, preferably provided with at least one groove extending thereon in the longitudinal direction and adapted to the head of the attachment means. Thus preferably comprising a gap between the walls of the recess of the groove of a size larger than the head of the attachment means. At least one connecting cavity formed in this part then extends from this groove.

The at least one panel preferably comprises at least two connecting cavities.

Preferably, the at least one panel comprises at least three connecting cavities that run parallel thereto at regular intervals therebetween.

Advantageously, the construction system according to the proposed solution is combined with a modern type of floating floors, which have a so-called "floating floor". locks. Adjacent parts have, in addition to being fastened to each other by means of connection cavities and fastening means according to the invention, also an interlocking shape of the type, where one part has at least one connecting projection and the other has at least one connecting recess for this projection, to ensure a precise relative position in the connected state.

The method of manufacturing a prefabricated floor using a constructional solution according to the technical solution is intended for floors of the type in which the finished floor is formed as a layer of parts, by their successive placing next to each other on the destination and fixing. In particular, it is suitable for floating floors, deck floors or industrial floors made of single or multi-layer boards consisting of one or more materials. According to the proposed method, at least some of the parts are fastened in place by forming attachment hollows, and then fastening to a destination by weaving the fixed connection fasteners through the thus formed attachment hollows. However, according to the invention, this is not done with openings from top to bottom and fastening to the substrate, as in the prior art, but as a floating floor, i.e. by building a layer of parts that do not need to be fixed to the substrate. This is achieved by at least some of the panels being pre-equipped with connecting cavities extending through the entire panel in a direction parallel to the face of the panel from one side of the panel to the opposite side, towards the adjacent floor panel to which this panel is to be attached. position of parts in the assembled floor. The floor is then made by attaching the connection part to another part already laid at the destination, placing the connection means of the fixed connection carrying the mandrel onto the connection cavity, and inserting the end of this connection means into the body of the adjacent component and fixed therein but at least at the same time at least a portion of the mandrel is left in the connecting cavity of the connecting member and there is also fixed the opposite end of the connecting means. Throughout this laying process, each insertion and fastening of the attachment means takes place outside the face of both the part to be joined and the part already laid at the destination.

The connection cavities are excavated into the parts with a slight to slight inclination to the face when the ease of assembly is preferred. Advantageously, the easy manufacture of the connection cavities is dredged parallel to the cheek

SK 7023 Υ1 flat part, either by drilling the parts to form holes, or by cutting off the back of the parts to form grooves.

Preferably, at least one section of the connection cavity is made with a larger diameter than another section of the same connection cavity, while laying the floor, the drilled part is applied to another already laid part through the narrower portion of the connection cavity and placed into the connection cavity over first, the connection means with the head, in the optimum case as far as possible. Thus, the attachment means is preferably positioned in the attachment cavity so that its head rests on the constriction of the attachment cavity. In this case, the connecting means must, of course, be of a length such that the end of the connecting means mandrel is embedded in an already adjacent adjacent component. This solution prevents parts from cracking in the event of screws or other head attachments. If the device is flushed to the constricted area, a high strength and durability of the joint is achieved.

The connection cavity panel is preferably placed on another already laid panel, such that the connection cavity opens onto an integral part of the side wall of the panel already laid. However, this is not a prerequisite, for example, in the case of using countersunk bolts, the parts can be joined together through continuous connecting cavities, as also described in one of the following examples.

Different or all of the connecting cavities in the parts preferably have the same dimensions, but preferably different connecting lengths can be targeted to different connecting cavities. These options can be used especially when installing solid wood floors, ie natural wood, and choosing the length of the connecting means so that they do not interfere with lumps or other problematic areas of the material.

The connecting cavities are preferably deepened in the direction of the width of the panels into a row in which the connecting cavities are spaced at regular intervals, wherein the distance of the outer connecting cavities from the ends of the panel is selected so as to be the same distance as between adjacent connecting cavities in the row and between the outer connecting cavities parts in case of their application in the longitudinal direction.

Advantageously, locks based on protrusions on one panel and corresponding recess on an adjacent panel are produced on all panels except the connection cavities, as is the case with modern floating floors such as tongue and groove or dovetail latches, whereby adjacent panels are then connected to first by means of these locks, and then by means of the connection cavities and the connection means of the fixed connection with the mandrel. The advantage is, on the one hand, a more rigid connection of the parts and, on the other hand, a definition of the exact relative position of the parts.

When laying the floor, the components are preferably laid loosely on the substrate, thereby achieving a floor type of floating floor. Adequate to the need for displacement on the substrate due to changes in humidity and temperature in these floors due to the possibility of displacement by material dilatation at the edges of the floor thus formed, a dilatation gap is left, especially in the case of larger floor areas.

The technical solution is particularly suitable for floors of the floating floor type, for deck floors and for industrial floors made of boards or narrow panels or panels. Floors made according to the technical solution are strong and highly resistant to load, uneven pressure, leakage and the like. The greatest advantage of these floors is that, even after long periods of use, critical operating conditions, or large floor surfaces, undesirable cracks and spacing joints do not occur between the panels. A great advantage is that, according to the invention, the connection means pull the floor panels together. Floors according to the technical solution have a very long service life. The created floor is very resistant to drying and swelling. When installing the floor, only some of the panels may have connecting cavities or, on the contrary, the connecting cavities may be on all panels. The connection cavity system can advantageously be combined with a latching lock system used today in various forms for floating floors, as well as adhering adjacent parts with special adhesives to ensure the consistency of the produced floor. The technical solution is suitable especially for floors, but also for cladding of facades, interiors and bathrooms, especially wooden ones. If glue is not used during assembly, easy removal of the floor or partial dismantling is possible, with the possibility of possibly replacing a damaged part or several parts. Another advantage of the floors according to the invention is the possibility to grind the finished floor and modify its surface in various ways, for example by painting or impregnating with waxes and the like. The technical solution makes it possible to use boards or components of a greater thickness, for example for grids under heating and the like. The technical solution is suitable especially for parts of greater thickness, it is not designed for thin and extremely thin parts. The technical solution makes it possible to use an optimum length of the mandrels of the connecting means according to the shape, dimensions and structure of the components, for example in order to increase the floor strength and prevent longitudinal rupture, longer mandrels, for example 1.3 times the width of the component.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution is elucidated by means of the drawings, in which Figure 1 shows a perspective view from above of a vertical section through an exemplary assembled floor with parts connected by screws and comprising

Fig. 2 front view of the vertical section of the floor in the case of a bolt with the head supported in the peripheral longitudinal groove of parts containing a single-diameter connecting cavity, fig. 3 front view of the vertical section of the floor in the case of a joint bolt with heads supported in adjacent two-diameter connecting cavities, Figure 4 front view of the vertical section of the floor in case of joining bolts with furniture nut, with bolt head supported in the two-diameter connection cavity, Figure 5 front view of the vertical section of the floor Fig. 6 is a diagrammatic view of the construction of the floor in the individual phases A to D, Fig. 7 is a bottom perspective view of an exemplary assembled floor with connection cavities in the form of a recess , FIG ad from the vertical section of the floor according to the previous figure in line A-A indicated in the previous figure.

EXAMPLES

An illustrative example of an optimum embodiment of the invention is the assembled floor according to FIGS. 1 and 6.

The assembled floor consists of a planar structure, composed of a layer of flat parts 1, 2, 3, arranged side by side, with the face side up and the back face down. The panels 1, 2, 3 have connection cavities 4 formed in them in the form of openings extending out of the face from one side to the other through each panel 1, 2, 3. The connection cavities may have a slight or almost invisible inclination or are parallel to the face 1, but in all cases the direction of a line extending from one side of the first panel 1 over its entire body to the adjacent, second panel 2 and not outside it. Adjacent parts 1, 2, 3 are connected to each other and preferably tightened by means of the connection means 5 of a rigid connection to the mandrel, in this example in the form of screws. In each connection cavity 4 selected by the manufacturer, one bolt is provided for attachment, one part of which is located in the connection cavity 4 of the first part 1 and the other part extends from the connection cavity 4 into the body of the adjacent part 2 where it is fixedly fixed.

Figure 1 shows a cross-sectional view of the joint at the first panel 1 in a preferred embodiment in which the connecting cavity 4 is formed with two different diameters. From this, the larger diameter is adapted to the size of the screw head 6 and the smaller diameter for the screw shank. The connection cavity 4 extends through the first part 1 shown in its transverse direction, i.e. perpendicular to its edge and preferably by the shortest possible path.

In the present example, the panels 1, 2, 3 are provided with a classical lateral connection to the tongue and groove 7. Therefore, each panel 1, 2, 3 has a tongue formed on one side and a longitudinally extending groove 7 into which the tongue fits.

As shown in Figure 2, this groove 7 can be used to accommodate the head 6 of the attachment means 5. In this case, the attachment cavity 4 can have a simple hole drilled with a single diameter throughout, as also shown in Figure 2. , 3 of the solid wood and it is not possible to know which side is the face, when laying the floor, so that one of the pair of connected parts 1,2, 3 always has a groove 7 on the side intended for the mandrel inlet 5 and at the end of this groove 7, the head 6 of the connecting means 5 is then supported on assembly. This solution is suitable for bolting and for parts 1, 2, 3 having a groove 7 on at least a portion of one of the lateral sides, preferably extending in the longitudinal direction and at least one connecting cavity 4 formed in this part 1, 2, 3 extends from the groove 7.

A screw does not necessarily have to be used as a fixed connection means 5, although this connection is probably the most advantageous because of its ease of assembly, easy disassembly and low cost. Figures 3 to 5 show examples of alternative types of usable attachment means 5. The type of attachment means 5 selected then corresponds to the method of fastening its ends, in particular the method of fastening the end provided in the second part 2.

Figure 3 shows the joint with a double head screw. The parts 1, 2, 3 are arranged for such fastenings so that the connecting cavities 4 are connected to each other at the first and second parts 1, 2. The connecting cavities 4 are made with two diameters and these parts 1, 2 are inverted with a narrower diameter to me. Both screw heads 6 are supported in the connection cavities 4 at the beginning of the narrower part.

Figure 4 shows the connection screw with the furniture nut 8. The screw head 6 is supported in the connecting cavity 4 with two diameters at the point of its taper inside the first part 1 and the furniture nut 8 is embedded in the second part 2 beforehand.

Figure 5 shows the connection screw with the countersunk nut 9. The screw head 6 is, as in the previous examples, supported in the connecting cavity 4 with two diameters inside the first part 1. The countersunk nut 9 is pre-fitted in the longitudinal groove 7 of the second part 2.

The connection cavity may be one, two or more, and only on some or all of the panels 1, 2, 3. In the case of larger panels 1, 2, 3, it is preferable that two or more connection cavities 4 are included. The connection cavities 4 in this case preferably run parallel

They are preferably located at regular intervals from each other. The end connection cavities 4 can be positioned in a corresponding sequence in the event that additional panels 1, 2, 3 are laid in the longitudinal direction in succession when laying the floor.

An example of a floor arrangement with connection cavities 4 made as recesses in the back face of the panels J, 2, 3 is shown in Figures 7 and 8. This is practically similar to the arrangement described in the previous examples, except that holes J, 2, 3 do not drill holes. but they cut through the transverse recesses. Figure 8 illustrates the occurrence of a series of connection cavities 4 at regular intervals.

The prefabricated floor according to the invention may comprise connecting means 5 of different length, for example a shorter screw in the presence of a lump or other obstacle of easy fastening in the second part to be attached.

The prefabricated floor according to the technical solution can also be made of ordinary boards with straight side walls. It is, however, advantageous if the adjacent parts 1, 2, 3 can be fastened in addition to the connecting cavities 4 with the fastening means 5 of a fixed connection of the type of screws and the like, also by means of interlocking shapes. Optimally, by means of connecting lugs and connecting recesses formed on the counter-pieces, both in the form of means for ensuring the exact relative position of the parts 1, 2, 3 in the connected state. The technical solution can also be used to improve the quality of the floor with the joints between panels 1, 2, 3 of the type for the inserted tongue, for the inserted dowels, for the inserted dilatation or the intermediate layer of ornamental element. Come.

Figure 6 shows a schematic process of making a prefabricated floor according to the invention.

The floor is formed as a layer of panels 1, 2, 3 by placing them side by side at the destination and fastening side by side. While in the prior art, the panels 1, 2, 3 are fixed in place by drilling vertical cavities, and then fixed to their destination by screwing the screws from top to bottom across the face to the washer through these vertical cavities and a stationary attachment of the panels 1, 2 3 according to the invention, the connection is horizontal and a floating floor type result is achieved. The selected connecting parts 1 are first equipped, optimally at the manufacturer and at the latest during installation, with connecting cavities 4 extending through the entire respective part 1 in a direction parallel to the face from one side to the opposite side towards the adjacent second part 2 to be the connected first panel 1 fixed, tied according to the position of the panels J, 2, 3 in the assembled floor. The floor is made in such a way that the first connecting part 1, which is provided with connecting cavities 4, is applied to another, in the figures second part 2, already laid at the destination. In the selected connection cavity 4 a fixed connection means 5 is provided carrying a mandrel, for example a screw, whereupon the end of the connection means 5 is inserted through the connection cavity 4 into the body of the adjacent part 2 and is fixed there. In the case of a screw, this fixation takes place by embedding at least the end of the threaded part. At the same time, at least a portion of the mandrel of the connecting means 5, for example a screw shank, is left in the connecting cavity 4 of the first connecting component. The opposite end of the connecting means 5, e.g. the screw head 6, is firmly fixed by leaning either the longitudinal groove 7 or the constriction. connecting cavity

4. During the entire floor laying process, each insertion and fastening of the connecting means 5 by means of these connecting cavities 4 takes place outside the face side of both the connected part 2 and the part 2 already laid at the destination. The connection cavities 4 are deepened into the panels 1, 2, 3, preferably parallel to the face of the panel, either by drilling the panels 1, 2, 3 to form holes or by cutting from the back of the panels 1, 2, 3 to form recesses .

Preferably, a two-diameter connecting cavity 4 is produced, this dimensional difference being used to accommodate the head 6 of the connecting means 5. This is done as follows. At least one section of the connecting cavity 4 is made with a larger diameter than another section of the same connecting cavity 4, for which when the floor is laid, the drilled first part 1 is applied to another already laid second component 2 through the narrower part of the connecting cavity 4 4 is placed, through its wider part, with a mandrel in front of the coupling means 5 with the head 6 and is pushed there as far as possible until the head 6 of the coupling means 5 bears against the constriction of the connecting cavity 4. so that the end of the mandrel extends beyond the second part 2.

In the case of screws or nails, the first part 1 is placed on the second part 2 already laid, so that the connection cavity 4 faces the integral part of the side wall of the second part 2 already laid.

It is most preferred that all the included cavities 4 have the same shape and dimensions. It is most convenient to manufacture and is convenient for the installer or can estimate and easily resolve any problem areas in the floor. For example, it is possible to target different means 5 of different lengths in different connection cavities 4 so as not to interfere with lumps or other problem areas of the material.

The connecting cavities 4 preferably extend in the width direction of the panels 1, 2, 3, i.e. perpendicularly across their shorter side, preferably in a row at regular intervals. The distance of the outer connecting cavities 4 from the ends of the panels 1, 2, 3 is preferably selected so as to provide the same distance as between adjacent connecting cavities 4 in the row and between the outer connecting cavities of the panels 1, 2, 3 in the longitudinal direction. In the case of panels with straight end walls which are laid together when laying and not

Thus, the outer connection cavities 4 from the end of the panel 1, 2, 3 are at a distance halfway between adjacent connection cavities 4 in a row. Advantageously, the method according to the invention is combined with classical laying. The technical solution can then be used to improve the performance of the present floating floors or, in the manufacture of parts 1, 2, 3 on all parts, both the connection cavities 4 according to the technical solution and some of the classic or modern type of projection locks on the first part 1 and a corresponding recess on an adjacent second panel 2, for example of tongue and groove type or dovetail latch. When laying the floor, the adjacent parts are then connected to each other first by means of these locks, and then by means of the connecting cavities 4 and the connecting means 5 of the fixed connection with the mandrel. When laying the floor, the panels 1, 2, 3 are preferably laid loose on the substrate and a free expansion joint is left at the edges of the floor thus formed.

Claims (18)

PROTECTION REQUIREMENTS A prefabricated floor in the form of a planar structure formed by a layer of flat panels (1, 2, 3) arranged side by side and having each face and back surface, characterized in that at least some of the panels (1, 2, 3) are formed therein at least one connecting cavity (4) extending off the face from one side thereof to the other side, in a line of a line directed to the adjacent component (1, 2, 3), wherein the adjacent components (1, 2) are connected to each other by at least one connection means (5) for rigid connection to the mandrel, one part of which is located in the connection cavity (4) of the first part (1) and the other part extends from the connection cavity (4) into the body of the adjacent second part (2) fixedly fixed. Assembled floor according to claim 1, characterized in that the connecting cavity (4) is in the form of an opening. Assembled floor according to claim 1, characterized in that the connecting cavity (4) is in the form of a recess in the back surface of the panel (1, 2, 3). Prefabricated floor according to one of Claims 1 to 3, characterized in that the connection cavity (4) has at least two different diameters during its course, of which a larger diameter for the passage of the head (6) of the connection means (5) is fixed to a bolt head (6), and a smaller diameter for the mandrel of the attachment means (5), for example, a bolt shaft. Prefabricated floor according to one of Claims 1 to 4, characterized in that the connecting cavity (4) extends parallel to the plane of the face of the panel (1, 2, 3). Prefabricated floor according to one of Claims 1 to 5, characterized in that the connecting cavity (4) extends in the transverse direction of the panel (1, 2, 3). Ί. Prefabricated floor according to claim 6, characterized in that the at least one part (1) comprising the connecting cavity (4) has at least one groove (at least part of the groove) formed on its inlet side of the mandrel 7) for the head (6) of the connection means (5) and the connection cavity (4) has a start in this groove (7). Prefabricated floor according to one of Claims 1 to 7, characterized in that the at least one panel (1, 2, 3) comprises at least two connecting cavities (4). Prefabricated floor according to claim 8, characterized in that the at least one panel (1, 2, 3) comprises at least three connecting cavities (4) which run parallel to it at regular intervals. Prefabricated floor according to one of Claims 1 to 9, characterized in that adjacent parts (1, 2) fastened to each other by means of connecting cavities (4) and fastening means (5) have an interlocking shape, one of which (1) 1) has at least one connection protrusion and the second part (2) has at least one connection recess for the protrusion, both in the form of means for ensuring a precise relative position in the connected state. A method of manufacturing a prefabricated floor according to any one of claims 1 to 10, wherein the finished floor is formed as a layer of panels (1, 2, 3) by successively laying them side by side at the destination and fastening, wherein at least some panels (1) , 2, 3) fasten in place by means of recesses of the connecting cavities (4) and by means of connecting means (5) a firm connection with the mandrel through the thus formed connecting cavities (4), characterized in that in at least some parts (1, 2, 3) the connecting cavities (4) are made parallel to the face so that they extend from one side of the part (1, 2, 3) through its body to the opposite side, whereby the floor is then made so that when the first part (1) comprising the connecting cavity (4) to be joined to another second part (2) already laid at the place of destination, a fixed connecting means (5) is fixed in the connecting cavity (4) of the first part (1) the end of this attachment means (5) is recessed into the body of the adjacent second part (2), where it is fixedly fixed, leaving at least a portion of the mandrel in the connection cavity (4) of the first part (4). 1) and in the first part (1) the opposite end of the connection means (5) is fixedly fixed, and during the floor laying process, the successive mounting and fastening of the connection means (5) is performed using different connection cavities (4) in different parts (1,2) , 3), except SK 7023 Υ1 the face of these parts (1, 2, 3). A method of manufacturing a prefabricated floor according to claim 11, characterized in that the connection cavities (4) are excavated into the parts (1, 2, 3) parallel to their face, either by drilling to form holes or by milling from the reverse side. parts (1, 2, 3) to form a groove recess. Method of manufacturing a prefabricated floor according to claims 11 and 12, characterized in that at least one section of the connecting cavity (4) is produced with a larger diameter than another section of the connecting cavity (4), and then the first panel (1) is laid with such a connecting cavity (4), the narrower part of the connecting cavity (4) is inserted into the second cavity (2) by way of an orifice and the connecting means (5) with the head (6) is inserted into the connecting cavity (4) ) and fasten here with the head (6) as far as it will go, until the head (6) of the connecting means (5) bears against the constriction of the connecting cavity (4), using the connecting means (5) of such length that The mandrel of the connecting means (5) has come out of the first part (1) and has been embedded in the second part (2). Method of manufacturing a prefabricated floor according to claims 11 to 13, characterized in that the first panel (1) is laid on another already installed second panel (2) when building the floor so that each connecting cavity (4) of the first panel (1) 1), which will be used for the connecting means (5), has been provided on the integral part of the side wall of the second part (2). Method for manufacturing a prefabricated floor according to claims 1-4, characterized in that the different connection cavities (4) are produced with the same dimensions, but then the connection means (5) of different lengths are purposefully placed in the different connection cavities (4) so as not to reach to lumps or other places with difficult material permeability. A method for producing a prefabricated floor according to claims 1 to 15, characterized in that the connection cavities (4) are lowered so as to extend in the width direction of the component (1, 2, 3) and on the individual components (1, 2, 3). forming a row in which the connecting cavities (4) are spaced at regular intervals, the distance of the outer connecting cavities (4) from the ends of the component (1, 2, 3) being selected so as to provide the same distance as between adjacent connecting cavities (4) in the row as well as between the outer connecting cavities (4) of the components (1, 2, 3) in the case of their application in the longitudinal direction. Method of manufacturing a prefabricated floor according to claims 1 to 16, characterized in that locks are produced on all the panels (1, 2, 3) in addition to the connecting cavities (4), for example on the basis of at least one projection on one panel (1) into the corresponding recess on the adjacent panel (2), whereupon in the manufacture of the floor, all adjacent panels (1, 2, 3) are then connected to each other first by means of these locks, and then at least some panels by connecting cavities (4) and connecting means ( 5) fixed connection with mandrel. Method for manufacturing a prefabricated floor according to claims 1 to 17, characterized in that during the laying of the floor, the panels (1, 2, 3) are laid loosely on the substrate and a free expansion joint is left at the edges of the floor thus formed.