RU93107U1 - BOTTOM ELEMENT CONSTRUCTION ASSEMBLY OF THE END-FRONT LOCK OF THE Glueless PANEL SYSTEM FOR THE FLOOR - Google Patents

Abstract

 The bottom structural element of the end lock assembly for the system of glueless joining of floor panels formed of the first and second rectangular rigid panels, each of which is made of at least three layers, sequentially bonded from top to bottom in a vertical plane, including a protective layer a layer and a reverse layer, the first of the rectangular rigid panels provided on the end with means of mechanical connection such as a groove, and the second of the rectangular rigid panels contains at the end adjacent to rtsu of the first rigid rectangular panel, a response means of a spike-type mechanical connection, characterized in that in the carrier and reverse layers of the first and second rectangular rigid panels, chamfers of the form L layers, selected from the range of values from 1.1 · 10-3 m to 1.8 · 10-3 m, and the parameter α represents the angle between the aforementioned boundary of the horizontal bonding surface of the carrier and the back layers with the vertical, taken from the range of values from 35 to 50 °.

Description

The utility model relates to the field of construction and, in particular, can be used in a system of floating floor coverings, rallied by means of a mechanical lock type groove-spike.

Known typesetting flooring [1], the wooden elements of which are rallied (mechanically combined) by means of an endless adhesiveless lock. The endless glueless lock consists of a rectangular groove and a spike in return. These elements of the mechanical connection of the panels are performed by milling on the abutting ends of the said wooden elements of the flooring.

The disadvantage of the analogue under consideration is the presence of a stepped relief on the floor surface in the zone of visible opening of the seam due to mechanical stresses in the design of the end lock assembly due to uneven surfaces of the subfloor interacting with the back of each of the rallied wooden elements.

The closest in essence and the achieved result to the proposed device is the design of the node glueless mechanical lock [2], which provides mechanical connection in a continuous floor covering of individual panels. The aforementioned panels are rallied by means of an end lock of the groove-spike type, consisting of a rectangular groove and a reciprocal spike located in the bottom of the ends of the joined panels. In addition, the known end lock contains a second pair of tongue-and-grooves for additional reinforcement of glueless joints made on the same joined ends of the panels, respectively, in the form of a figured groove and a figured spike reciprocal to it. This technical decision is made as a prototype.

The disadvantage of the prototype is the presence of a stepped relief on the floor surface in the area of the visible opening of the seam due to mechanical stresses in the design of the end lock assembly due to uneven surfaces of the subfloor interacting with the back of each of the rallying wooden elements.

The task to be solved by the claimed utility model is to increase the durability of the installed floor covering by reducing the size of the stepped relief in the area of the visible opening of the seam.

The technical result expected from the claimed utility model consists in reducing the magnitude of the stepped relief in the area of the visible opening of the seam.

The specified technical result is achieved by the fact that in the bottom structural element of the end lock assembly of the system, the adhesiveless connection of the floor panels formed from the first and second rectangular rigid panels, each of which is made of at least three layers, sequentially fastened together from top to bottom vertical plane, including a protective layer, a carrier layer and a backing layer, the first of the rectangular rigid panels provided at the end with means of mechanical connection such as a groove, and the second from a straight of the rigid panels contains, at the end adjacent to the end of the first rigid rectangular panel, a thorn-type mechanical coupling means, chamfers of the form L bonding the surface layers and circulating carrier selected from the range of values from 1,1 × 10 ^-3 m to 1,8 × 10 ^-3 m, and the parameter α is the angle between the horizontal surface of said bonding boundary nesuscheg and working with the vertical layers selected from a range of values from 35 ° to 50 °.

The claimed utility model is illustrated in the figure. Figure 1 schematically shows a vertical sectional view of the end-lock assembly of the glueless system of floor panels provided with the proposed bottom structural member.

The list of positions:

1. The protective layer.

2. The bearing layer.

3. The backing layer.

4. Thorn.

5. The groove.

6. The bottom structural element of the mechanical lock assembly.

L is the size of the chamfer at the border of the horizontal surface of the bonding of the bearing and reverse layers.

L ₁ - the size of the chamfer on the end lock assembly of the first panel.

L ₂ - the size of the chamfer on the end lock assembly of the second panel

α is the angle of the chamfer.

α ₁ - the angle of the chamfer at the end lock assembly of the first panel.

α ₂ is the angle of the chamfer on the end lock assembly of the second panel.

The mechanical cohesion of rectangular rigid grooved-type panels is ensured by the construction of the end lock assembly of the glueless system of the floor-forming elements provided with the proposed bottom element.

The surface of each of the panels rounded in the floor covering, opposite to the surface in contact with the subfloor (in other words, the back side of the floor covering), is provided with a protective layer, that is, a protective layer of the first floor panel 11 is formed on the surface of the first floor panel (Fig. 1) and on the surface of the second floor panel, a protective layer of the second floor panel 12 is formed (FIG. 1).

In the case of a protective layer in the form of a two-layer laminate, the latter on the surface of the first floor panel 11 (Figure 1) is a decor layer (painted and / or embossed decorative coating), on top of which a high-strength film is formed (in particular, a film reinforced with abrasive powder , for example, Al ₂ O ₃ ) powder, preferably based on melamine or acrylic resin. The structure of the protective layer 12 (FIG. 1) on the surface of the second panel is the same as the structure of the protective layer on the surface of the first panel 11 (FIG. 1).

In the case of a protective layer in the form of a composite laminate, the latter on the surface of the first floor panel 11 (Figure 1) is a base layer based on melamine or acrylic resin. A decor layer (painted and / or embossed decorative coating) is thermally fixed on the surface of the base layer. And the decor layer, in turn, is coated with a high-strength (reinforcement with abrasive particles, for example, Al ₂ O ₃ powder) film, preferably also based on melamine or acrylic resin. The structure of the composite laminate on the surface of the second panel 12 (FIG. 1) for the floor is identical to the above-described structure of the protective layer of the first panel 11 (FIG. 1).

In all of the above cases, the protective layers of the panels are fixed to the surface of the carrier layer, in this case, the carrier layers of the first panel 21 (Figure 1) and the second panel 22 (Figure 1), respectively. The carrier layer of the first 21 (Figure 1) and the carrier layer of the second 22 (Figure 1) of the panels can be made of medium-density fiberboard (Medium Density Fibroboard) or high (High Density Fibroboard) density.

With the back side of the carrier layer 21 (Fig. 1) and 22 (Fig. 1) of both panels, a revolving layer of the first 31 (Fig. 1) and a revolving layer of the second 32 (Fig. 1) panels are fastened. Unrefined or impregnated with resin (preferably melamine or acrylic resin) paper is used as the backing material. Functionally, the reverse layer 31 and 32 (FIG. 1) is designed to compensate for mechanical stresses in the carrier layer 21 and 22 (FIG. 1) arising due to the presence on the surface of the carrier layers 21 (FIG. 1) and 22 (FIG. 1) other than the carrier layer in structure (and, accordingly, in mechanical characteristics) of the protective layer 11 and 12 (Figure 1).

Glueless fixing of the panels as a result of their articulation in the claimed device is ensured due to the fact that on the vertical (i.e. end) surfaces of the panels by means of instrumental milling form means of mechanical connection (end lock assembly) of the groove-tongue type. In this case, the spike 4 (FIG. 1) is made in the form of a spring-loaded locking tab, the surface of which contacts the surfaces of the upper and lower jaws of the locking groove 5 (FIG. 1). Beneath the spring-loaded fixing tab of the spike 4 (Fig. 1) between the first and second articulated panels there is a bottom structural element of the end lock assembly, which is performed in the carrier and reverse layers in the form of a chamfer of the form L · α, where parameter L represents the size of the chamfer at the horizontal border bonding the surface layers and circulating carrier selected from the range of values of from 1,1 × 10 ^-3 m to 1,8 × 10 ^-3 m, and the parameter α is the angle between said horizontal boundary surface of the carrier and the bonding working layers Vertical pour selected from the range of values from 35 ° to 50 °.

Example No. 1

Rectangular rigid panels are used for glueless floor construction with the following dimensions: length - 1290 mm, width - 194 mm, thickness - 6.6 mm. Each of the panels is equipped with two spike-groove mechanical connection means formed at the ends of its opposite long sides. Use the above panels with a protective layer 11 and 12 (Figure 1) in the form of a two-layer laminate with a thickness of 0.5 × 10 ^-3 m, and the thickness of the decor layer in it is 0.25 × 10 ^-3 m, and the film thickness is the acrylic resin base was 0.25 × 10 ^-3 m. As the carrier layer 21 and 22 (FIG. 1), a 5.5 mm thick high-density fiberboard (HDF) was chosen. The reverse layers 31 and 32 (FIG. 1) were made of acrylic resin impregnated paper with a thickness of 0.6 × 10 ⁻³ m.

Groove 5 (Figure 1) by milling is performed so that the surface of the upper jaw has zero curvature and is oriented parallel to the plane of the surface of the rectangular rigid panel, and the surface of the lower jaw, on the contrary, is made with a 1 / R curvature of 0.12. In this case, the groove 5 (FIG. 1) on the first of the ends of the long side of the panel was milled in the form of a recess fixing the response spike 4 (FIG. 1) so that under the spring-loaded fixing tab of the spike 4 (FIG. 1) between the first and second panels during assembly a bottom structural element of the end lock assembly is formed in the form of a two-sided chamfer 6 (Figure 1), with the parameter L = 1.1 × 10 ^-3 m and the parameter α = 50 °.

Assembling a floating floor in a room with an area of 9 m ² from panels with the described design of the end lock was performed with a shift in the position of the ends of each next stacked row by half the length of the panel used for it. Initially, the first row of rectangular rigid panels was laid along the selected wall of the room so that the ends of the short side adjoin each other, and the groove 5 (Figure 1) is facing away from the wall of the room. Then, each of the panels of the second row was alternately oriented with a spike 4 (Fig. 1) to the groove 5 (Fig. 1) of the previously laid row, the articulated panel was tilted under the corner about 45 ° to the surface of the subfloor (i.e., to the horizontal plane) and with a force of about 9-10 kg introduced the spring retaining tab of the spike 4 (Figure 1) into the recess of the groove 5 (Figure 1) while bringing the articulated panel into a horizontal position. After laying the second panel of a new row of floors, the short ends of the previous row, positioned approximately in the middle of the length of this panel, were pressed with the required number of hits of a rubberized hammer or an end metal mandrel was used.

Having completed the laying of the last row of assembled (without the use of glue) from rectangular rigid floor panels, the relief was examined in the zone of visible opening of the joints of the connected panels (the measurement step was 200 mm). For measurements, a portable Surftest SJ-201 profilometer (Japan) was used with an error of 5% on a profile up to 200 microns (ie, a profile of 2.0 × 10 ^-4 m).

The averaged results of measurements of the stepped relief in the zone of visible opening of the seam of a floor assembled from rectangular panels with the proposed bottom element in the design of the end lock assembly are presented in Table No. 1.

Table number 1 No. p / p Object of research The average value of the stepped relief in the area of the visible opening of the seam, microns one Prototype device 140 2 Claimed device 95

As follows from Table No. 1, the proposed device allows to implement the claimed technical result in the form of reducing the size of the stepped relief in the area of the visible opening of the seam

Example No. 2

Rectangular rigid panels are used for glueless floor construction with the following dimensions: length-1290 mm, width-194 mm, thickness-7.4 mm. Each of the panels is equipped with two spike-groove mechanical connection means formed at the ends of its opposite long sides. Apply the above panels with a protective layer 11 and 12 (Figure 1) in the form of a two-layer laminate with a thickness of 0.85 × 10 ^-3 m, while the thickness of the decor layer in it is 0.35 × 10 ^-3 m, and the film thickness based on acrylic resin 0.50 × 10 ^-3 m. As the carrier layer 21 and 22 (Fig. 1), a medium-density fiberboard (MDF) 6 mm thick was used. The reverse layers 31 and 32 (FIG. 1) were made of acrylic resin impregnated paper with a thickness of 0.55 × 10 ^-3 m.

The groove 5 (Figure 1) is performed so that the surface of the upper jaw has zero curvature and is oriented parallel to the plane of the surface of the rectangular rigid panel, and the surface of the lower jaw, on the contrary, is made with a 1 / R curvature equal to 0.45.

In this case, the groove 5 (FIG. 1) on the first of the ends of the long side of the panel was milled in the form of a recess fixing the response spike 4 (FIG. 1) so that under the spring-loaded fixing tab of the spike 4 (FIG. 1) between the first and second panels during assembly a bottom structural element of the end lock assembly is formed in the form of a two-sided chamfer 6 (Figure 1), with the parameter L = 1.5 × 10 ^-3 m and the parameter α = 35 °.

Assembling a floating floor in a room with an area of 9 m ² from panels with the described design of the end lock was performed with a shift in the position of the ends of each next stacked row by half the length of the panel used for it. Initially, the first row of rectangular rigid panels was laid along the selected wall of the room so that the ends of the short side adjoin each other, and the groove 5 (Figure 1) is facing away from the wall of the room. Then, each of the panels of the second row was alternately oriented with a spike 4 (Fig. 1) to the groove 5 (Fig. 1) of the previously laid row, the articulated panel was tilted at an angle of about 45 ° to the surface of the subfloor (i.e., to the horizontal plane) and with a force of about 9-10 kg introduced the spring retaining tab of the spike 4 (Figure 1) into the groove of the groove 5 (Figure 1) while bringing the articulated panel into a horizontal position. After laying the second panel of a new row of floors, the short ends of the previous row, positioned approximately in the middle of the length of this panel, were pressed with the required number of hits of a rubberized hammer or an end metal mandrel was used.

Having completed the laying of the last row of assembled (without the use of glue) from rectangular rigid floor panels, the relief was examined in the zone of visible opening of the joints of the connected panels (the measurement step was 200 mm). For measurements, a portable Surftest SJ-201 profilometer (Japan) with an error of 5% on a profile up to 200 microns was used.

The averaged results of measurements of the stepped relief in the zone of visible opening of the seam of a floor assembled from rectangular panels with the proposed bottom element in the design of the end lock assembly are presented in Table No. 2.

Table number 2 No. p / p Object of research The average value of the stepped relief in the area of the visible opening of the seam, microns one Prototype device 138 2 Claimed device 97

As follows from Table No. 2, the proposed device allows to implement the claimed technical result in the form of reducing the size of the stepped relief in the area of the visible opening of the seam

Example No. 3

Rectangular rigid panels are used for glueless floor construction with the following dimensions: length-1290 mm, width-194 mm, thickness-9 mm. Each of the panels is equipped with four spike-groove mechanical connection means formed at the ends of its opposite long sides. Use the above panels with a protective layer 11 and 12 (Figure 1) in the form of a three-layer composite laminate with a thickness of 2.1 × 10 ^-3 m, and the thickness of the base layer based on an acrylic film was 0.7 × 10 ^-3 m, the thickness of the decor layer was 0.7 × 10 ^-3 m, and the thickness of the top protective film based on acrylic resin was also equal to 0.7 × 10 ^-3 m.

As the carrier layer 21 and 22 (FIG. 1), a 6 mm thick high density fiberboard (HDF) was selected. The back layers 31 and 32 (FIG. 1) were made of unrefined paper 0.9 × 10 ⁻³ m thick.

Groove 5 (Figure 1) is performed so that the surface of the upper jaw has zero curvature and is oriented parallel to the plane of the surface of the rectangular rigid panel, and the surface of the lower jaw, on the contrary, is made with a 1 / R curvature equal to 0.29.

In this case, the groove 5 (FIG. 1) on the first of the ends of the long side of the panel was milled in the form of a recess fixing the response spike 4 (FIG. 1) so that under the spring-loaded fixing tab of the spike 4 (FIG. 1) between the first and second panels during assembly a bottom structural element of the end lock assembly is formed in the form of a two-sided chamfer 6 (Figure 1), with the parameter L = 1.8 × 10 ^-3 m and the parameter α = 45 °

Assembling a floating floor with an area of 9 m ² from the panels of the described construction was carried out as follows. Initially, the first row of rectangular rigid panels was laid along the selected wall of the room so that the ends of the short side were adjacent to each other until they clicked, and the groove 5 (Figure 1) was turned away from the wall of the room. To close the spike 4 (Fig. 1) and the groove 5 (Fig. 1) of the short ends, the next panel to be laid was deflected from the black floor at the contact point of the short ends of the rallying panels by about 45 ° and a spring-loaded locking tab of the spike was inserted with a force of 9-10 kg 4 (FIG. 1) into the recess of the groove 5 (FIG. 1), at the same time bringing the articulated panel into a horizontal position. So they continued to act until the first row of panels was set against the wall of the room by mechanical locking of the spike and groove of the short ends. The second row of glueless floor panels rallied with the first row at the end length of the side of the panel using the above technique with an inclination of about 45 relative to the black floor, i.e. each of the panels of the second row was alternately oriented with a spike 4 (Fig. 1) to the groove 5 (Fig. 1) of the previously laid row, the panel was tilted at an angle of approximately 45 ° to the surface of the subfloor, and with a force of 10-12 kg the spring-loaded fixing tab of the spike 4 was inserted (Figure 1) in the recess of the groove 5 (Figure 1), while simultaneously unrolling the articulated panel in a horizontal position. The next panel of the second row was positioned approximately 10-15 mm indented from the short end; after it clicked on the long end, the panel was pressed to the short end of the previously mounted panel with the required number of hits of the rubberized hammer until the mechanical connection of this short end was latched. So the installation of the entire floor was carried out. After completing the laying of the last row of assembled (without the use of glue) from rectangular rigid floor panels, the relief was examined in the zone of visible opening of the joints of the connected panels (the measurement step was 200 mm). For measurements, a portable Surftest SJ-201 profilometer (Japan) was used with an error of 5% on the profile up to 200 microns (2.0 × 10 ^-4 m).

The averaged results of measurements of the stepped relief in the zone of visible opening of the seam of a floor made of rectangular panels with the proposed bottom element in the design of the end lock assembly are presented in Table No. 3.

Table number 3 No. p / p Object of research The average value of the stepped relief in the area of the visible opening of the seam, microns one Prototype device 132 2 Claimed device 85

As follows from Table No. 3, the proposed device allows to implement the claimed technical result in the form of reducing the size of the stepped relief in the area of the visible opening of the seam

To implement the claimed utility model, known materials and traditional equipment for pressing and machining can be used, which gives reason to believe that it meets the patentability criterion of utility models “industrial applicability”.

INFORMATION SOURCES

1. Utility model of the Russian Federation No. 35358, publ. January 10, 2004

2. The invention of the PRC No. 101492955, publ. 07/29/2009 (prototype)

Claims (1)

The bottom structural element of the end lock assembly for the system of glueless joining of floor panels formed from the first and second rectangular rigid panels, each of which is made of at least three layers sequentially fastened together from top to bottom in a vertical plane, including a protective layer that carries a layer and a backing layer, the first of the rectangular rigid panels provided at the end with means of mechanical connection such as a groove, and the second of the rectangular rigid panels contains at the end adjacent to rtsu of the first rigid rectangular panel, a response means of a spike-type mechanical connection, characterized in that in the carrier and reverse layers of the first and second rectangular rigid panels, chamfers of the form L · α are made, where parameter L represents the size of the chamfer at the boundary of the horizontal bond surface of the carrier and the reverse layers, selected from the range of values from 1.1 · 10 ^-3 m to 1.8 · 10 ^-3 m, and the parameter α represents the angle between the aforementioned boundary of the horizontal bonding surface of the carrier and the back layers with the vertical, Selectable from 35 ° to 50 °.