Method to install floor panels

FIELD: construction.

SUBSTANCE: panels on their opposite longitudinal faces and transverse faces are accordingly equipped with profiling corresponding to each other. In a room to form a solid floor surface on an installation plane, where several panels are joined in a row with their transverse faces. And into several rows with their longitudinal faces, and fixed relative to each other.

EFFECT: facilitated process of panel installation and improved operational qualities of connection.

4 cl, 11 dwg

 

The invention relates to a method glueless laying flooring panels (1.n, 2.n, ...), primarily consisting of chipboard material, such as MDF or HDF, which at its opposite longitudinal edges (I, I') and transverse edges (II, II'), respectively provided corresponding to each other profiling in the premises for the formation of a solid floor surface in the plane (Ev) stacking, in which several panels (1.1, 1.2, ... 2.1, 2.2) their lateral edges (II, II') are combined in a number of R3and their longitudinal edges (I, I') are combined in several rows Rnand fixed relative to each other, in which

a) for the formation of the first row (R1),

a1the first panel (1.1) spread on a plane (Ev) styling, and a second panel (1.2) its transverse face (II') is applied to the lateral faces (II) the first panel (1.1), and both panels (1.1, 1.2) by turning down or vertical lower panel (1.2) on the plane (Ev) styling are combined and fixed to each other, while

and2so will connect and fix such number of panels (1.n)until you have completed the first row of R1,

b) for the formation of the second series of R2,

b1another first panel (2.1) its longitudinal edge (I) is applied to the longitudinal edges (I') at least one posted in the first row of R1 panel (1.1, 1.2), and by turning down the plane (Ev) laying connect and fix this at least one panel (1.1, 1.2),

b2another second panel (2.2) its longitudinal edge so applied to the longitudinal edges (I') at least one posted in the first row (R1,panel (1.2, 1.3), which by its rotation down to a plane (Ev) laying longitudinal face (I) the other panel (2.2) are combined and fixed with a longitudinal face (I') at least one panel (1.2, 1.3) in the first row (R1), and the transverse face (II) which are combined and fixed with a transverse face (II') of the first panel (2.1) in the second row,

b3) thus connect and fix such number of panels (2.n)until it is fully lined second row (R2),

C) for the formation of the third (R3and every other number (Ri) steps b1to b3repeat up until the room is fully tiled, with

g) when the connection and fixation of the transverse edges (II, II') at least one consisting of a base material of the panel and integrally connected with it the locking element (3) single panel (1.2, 1.3) comes into contact with the snap with a locking face (4) of the other panel (1.1, 1.2), and

d) at commit time by turning down or lowering the panel (1.2, 1.3, ...) on the locking cell battery (included) is t (3) in the vertical direction (V) impact force, which is at least partially converted into acting in the horizontal direction force component, and then calls a counter-directional movement of latching the locking element (3).

This method is briefly described for example in DE 10224540 A1. To connect panels with transverse sides of the base material is first compressed and provided on the comb as the locking element ledge then snaps behind the rear of the groove acting as the locking faces in the groove of the opposite panel. To the retention efforts of two interconnected panels were large enough, the protrusion or the entire crest should be strongly compressed when the connection. In addition, due to the profiling of the comb with narrow tolerances must be guaranteed that the compression force does not become too large, which can lead to the destruction of the locking lip or retaining edge.

Stacking must be done very carefully. If the new stacked panel perekalivatsja, so that the compression forces become, at least in areas too large, there is a danger that the destruction of the locking elements will be implemented only partially and will not be noticeable from the outside, since the butt seam of the two panels in itself sacrista some time, primarily due to fluctuations in the temperature and humidity, which lead to swelling and shrinkage of the panels, the connection is terminated due to viscostatic connecting faces becomes optically visible even when between the two panels occurs very slight offset.

Based on this problem, the above method should be improved so that stacking was possible with less care and were almost completely excluded'd overlooked the destruction of the locking elements.

To solve the problems known from the prior art method differs in that the movement of the locking element in the horizontal direction and vertical direction to provide due to the release of the locking element relative to the base panel.

Due to the free mobility of the locking element is required only minor effort to be able to reject it at commit time, and then again to lock it in place. Even if the panel warp necessary to move the rejection of the efforts do not increase, and the locking element is securely deviates from any of the current efforts at him and springs, when the force ceases to be. The proposed variant of implementation of the elastic element can be moved on a horizontal plane and to deviate from the established due to the release of the space.

Preferably, to release the locking element from the foundations provided by at least one essentially horizontal groove and at least one essentially vertical groove.

The width of the grooves is determined not only by the strength of binding of the elastic element to the base material, but also by choosing the width of the vertical grooves may also be formed emphasis in the horizontal direction to the elastic element, so that it is protected from pererasseyaniya. To release the elastic element can also be provided by numerous horizontal, successive grooves and one vertical groove. Similarly, you can also be one single horizontal groove and lots of vertical, successive grooves. It is also possible to provide as many horizontal and lots of vertical, successive grooves.

Preferably, the elastic element is one of their ends connected with the base.

If for releasing the locking element is provided with at least one coming from the bottom side of the panel groove, a horizontal groove may be missing, since the locking element is free as towards the top and towards the bottom.

In this case, with the society of the vertical groove, preferably, passes at least partially through the lower locking section.

The method according to the invention is further explained in more detail using the drawing.

Figure 1 - schematic representation of the first row of R1panels;

Figure 2 - schematic representation of the formation of the second series of R2panels through the first panel;

Figure 3 - schematic representation of further education of the second row;

Figure 4 - section through two panels at the connection point on the transverse faces;

Figure 5 - side II' of the first panel;

Figure 6 - side II of the second panel;

Figure 7 is a top view of visible according to the arrow VII in figure 5;

Figure 8 - image section according to the arrows VIII-VIII in figure 6;

Figure 9 - view of the longitudinal edges of the panel.

Figure 10 is a partial image of two panels connected at their longitudinal edges at the junction;

Figure 11 is a section through two panels other constructive forms at the junction of the transverse faces.

Panel 1.1, 1.2, ..., 1.n, 2.1, 2.2, ... made identical. They consist of a base 17 of particle material such as HDF or MDF, or particle mixture and synthetic materials. At its opposite transverse faces II, II' panels 1.1, 1.2, ..., 1.n, 2.1, 2.2 profiled, while pop is river edge II top side 18 and a transverse face II' bottom side 19 milled. On the transverse faces II' is made of the elastic element 3, which is free milling basics 17 due to the fact that the milling was performed horizontal groove 11 and passing essentially vertical groove 10. Transverse faces II, II' have a width C. the Release of the elastic element 3 from the base 17 is exclusively due to the grooves 10, 11. The outer face 3C of the elastic element 3 is inclined at an angle α relative to the top side 18 of the panel 1.2. Vertical surface of the transverse faces II, II' processed so that the upper side 18 is formed surfaces 15, 16 seal.

On the opposite the elastic element 3 side II has a panel 1.1, 1.2, ..., 1.n with extending essentially in the horizontal direction H of the fixing protrusion 22, the lower lateral wall of which forms a passing essentially horizontally clamping face 4 in the rear groove. The locking protrusion 22 protrudes laterally over the surface 16 of the adjoining panel 1. Below the locking projection 22 is accomplished groove 9 which receives a portion of the elastic element 3 for fixing both panels 1.1, 1.2; 2.1, 2.2 in the vertical direction V. As shown in figure 4, the base 9a of the groove 9 extends parallel to the outer faces 3C of the elastic element 3, which facilitates the manufacture of the groove 9, but it could also be carried out strictly the vertical direction V or at an angle, other than the angle α. In comparison with the length of the hook element 20 locking tab is short. Between the upper side of the locking protrusion 22 and the surface 16 of the contact on the side face of the second panel 1.1 of the base material 17 generated dust pocket 23.

Fixing both panels 1.1, 1.2; 2.1, 2.2 in the horizontal direction H is manufactured by milling through a step-wise profiling U. elements 20, 21 and the vertical direction V by means of the elastic element 3 in combination with the securing line 4 on the locking ledge 22. Stretching down the flange 5 of the hook element 21 and performed, at least partially flat surface 12 vertices, which interacts with custom Kruchkova element 20 on the opposite side II', the bearing surface 13, which is thrown back behind the ledge 6. The surface 12 of the top and the base surface 13 end in the same plane E, so that the interconnected panels 1.1, 1.2; 2.1, 2.2 rely on each other. Converted to the base 17, the surface of the hook 24 of the element is inclined relative to the vertical and with correspondingly inclined, facing the base surface 17 of 25 forms on the shoulder, locking the line connecting two panels 1, 2. Profiling U. elements 20, 21 select the but that junction is formed preliminary voltage and the vertical surface 15, 16 of the adjoining panels 1.1, 1.2; 2.1, 2.2 pressed to each other, so that on the upper side 18 of two interconnected panels 1.1,...1.n; 2.1,...2.n does not occur a visible gap. To facilitate docking panels 1.1, 1.2; 2.1, 2.2, faces the speaker up to the ledge 6 of the hook element 20 and the speaker faces down the ledge 5 of the hook element 21 are removed chamfer or they are rounded. To simplify the manufacture of the elastic element 3, or horizontally passing groove 11 or passing essentially vertical groove 10 can be continuous, that is, through the entire width In the transverse faces II'. Regarding further details of the locking element is a reference to DE 102007041024.9

As shown in figure 11, the locking element 3' can be performed also on the bottom side 19 of the panel 1.2. In this case, essentially vertical groove 10' passes at least partially through the lower fixing section 38. As the locking element 3' is released as towards the bottom side 19 of the panel, 1.2, and towards its upper side 18, an additional horizontal groove is not required, so that the profiling faces or making the panels easier.

This above type of fixation is provided only on the Popper the Noah side panels, which at its longitudinal side I, I' can be connected to each other by bending inward at an angle and downward movement on the basis of sex, as described in DE 10224540 A1, with a corresponding profiling of the faces.

Figure 9 shows the longitudinal edges I, I' floor panel. On its upper side 18 gender panel provided with a decorative layer 25, which may be formed, for example, by having the wood grain paper layer, which is covered with a layer of synthetic resin, serving as a protection against wear. On the bottom side 19 may be affixed sound insulation layer in order to improve the properties of the noise impact of the laid flooring panels 1.n, 2.n, ... Alternative to the use of HDF or MDF panel can be made of PCB material (Oriented Strand Board/Oriented strand Board (OSB), but in this case it is possible to refuse a decorative layer 25. Panel 1.n, 2.n here distinguishable equipped with a crest 30 and on the opposite second side face of the recess 29.

The recess 29 and groove 30 are continuous over the entire length L of the longitudinal edges (I, I'. On the ridge 30 provides outstanding output with the edge of the ledge that goes in the front area that has a curved contour. This front area of the ridge 30, which forms a rear groove 31 adjacent the supporting region 28, which is formed under what aklanon angle µ to the upper side 8 of the panel 1.n. This reference area 28 adjacent vertically oriented wall 27.

As shown in figure 10, the rear groove 31 causes the fixation in the transverse direction Q, as it creates the fixing flush with the corresponding flange 32 of the recess 29. In assembled condition, the ridge 30 is engaged with the educated upper tongue 26 of the notches 29 in the rear groove 31, so that the upper side 33 of the ridge 30 is adjacent to the bottom side 40 of the upper tab 26 and is fixed in the vertical direction along the longitudinal edges I, I'. The protrusion 32 is formed on the bottom of the sponge 33 recesses 29 and completes it, while on the upper side of the protrusion 32 is formed inclined surface 35 of the projection, which serves as a support for the support surface 28. The end panel 1.n forms passing essentially vertical front side 34 of the flange, through which the curve moves to the upper side 35 of the collar.

Due to the upper side of the flange 35 on the longitudinal edges I and through the support region 28 on the opposite longitudinal edges I' is rendered relatively large bearing surface, on which both panels 1.2, 2.1 lie on top of each other in the United state. Mowing on the angle µ leads to the fact that when a vertical load in the transverse direction Q to each other produces a moving component, so the fix is proofed condition affecting the top of the power component, the gap between the two panels 1.2, 2.1 reduced, and the initial fixation can occur by insertion and rotation of the first panel to the second panel without pre-tension.

The flange 32 is made so that the front side 34 of the flange does not contact with the vertical wall 27 of at least two interconnected panels 1.2, 2.1. Also there is a free space 36, so that involuntary locking action between the panels 1.2, 2.1 is missing, and may be caused by movement toward each other when the initiation of the current top efforts.

Between the ridge 30 and the upper side 18 of the panels 1.n, 2.n made rear groove 37, which is adjacent to the passing at right angles to the upper side 18 faces. Rear groove 37 in the assembled condition, forms a free space, which can be hosted products abrasion or undeleted shavings from the manufacturing process. Also provided appropriate education round the anterior region of the ridge 30, so that the comb 10 in assembled condition also forms a gap 39, which may serve as a dust pocket and space.

Panel 1.n, 2.n are placed as follows:

For the formation of the first row of R1first, on the basis of gender overlaps the first panel 1.1. To the transverse faces II' this panel 1.1 add a second panel 1.2 the cross is ranu II, as shown in figure 1, or turning down, or, as shown for panel b, lowering in a vertical direction V, and this process is repeated up until the first row of R11.1, 1.2...1.n will not be laid entirely. For the formation of the second series of R2first, another first panel 2.1 its longitudinal edge I is applied to the longitudinal edges I' at least one, preferably two, laid the first row of R1panels 1.1, 1.2, and by turning down the plane Evstyling is connected and fixed with these panels 1.1, 1.2. Another second panel 2.2 its longitudinal face I put to the longitudinal edges I' at least one second panel (1.2, 1.3), laid in the first row so that by turning down the plane Evlaying its longitudinal line I is connected and fixed with a longitudinal face I've laid/laid in the first row of R1panel/panels 1.2, 1.3, and her cross the line II is connected and fixed with the cross-face II' of the first panel 2.1 in the second row R2. Thus connected and fixed such number of panels 2iuntil you have will be posted the second row. For the formation of the third and each subsequent series of the above steps are repeated until until the room is fully lined.

If the elastic element 3 swainaina 3d face adjacent to the upper side 18 of the panel 1, thanks essentially vertical joints in the direction of the plane Evlaying it upon further movement of the attachment due to his passing at an angle µ outer side face 3C is pressed when the touch surface 16 of the seal in the direction of the bases 17, so that it is deflected in the horizontal direction N. Panel 1.2 drops further down. When the elastic element 3 reaches a position opposite the groove 9, it is due to inherent material of opposing forces is extruded and then drops into the groove 9, where he held essentially horizontal upper side 3E adjacent to the clamping face 4. At the same time come into engagement hook elements 20, 21 until the surface 12 vertices will not rely on support surface 13. Then panels 1.1 and 1.2 are connected and fixed between its lateral edges II, II'. The inner wall 10A of the groove 10 serves as limit the expansion stroke for the elastic element 3 in order to prevent disconnection of the elastic element 3 at its ends with the base 17 due to too wide digaudio movement. Surface, i.e. the height and width, with which the ends of the elastic element is connected with the base 17, determine the degree of elasticity of the elastic element 3. As shown in figure 2, the length L of the side Gras and II can be performed three elastic element 3, and on the opposite side of the I - three locking protrusion 22. It is also quite valid execution of the elastic elements 3 are shorter and the provision of five, six or even seven or more elastic elements 3 and the corresponding locking protrusions 22.

If the vertical groove 10 is made sufficiently narrow, it is possible to hold the elastic element 3 connected to the base 17 only at one of its ends. This option has the advantage that the elastic element 3 may also extend in the direction of the width In a lateral side II. Then, this free end rests on the inner wall 10A of the groove 10.

The creation of the elastic element 3 is using tools that have the ability to move across a direction of processing. As tools can be used milling machines, laser or waterjet tools or stationary blade or pulling. For both side faces II, II' necessary in each case only one made with the possibility of moving the tool so that another release in each case can be carried out using conventional stationary tool. This reduces newsobituary region, which integrally connects the elastic element 3 with the base 17.

It also can have a different effect on the efforts of the commit.

what about all the examples of implementation of fixation is split by the panels 1.1, 1.2 are shifted relative to each other along the side edges II, II' or that side in place of the compound is introduced not shown unblocking pin.

Immersion is not depicted here, a milling tool occurs during movement of the panels in their longitudinal direction. On Fig can distinguish between input 10b and the output 10C of a milling tool, which is milled vertical groove 10, and the inlet 11b and the output 11C of the milling tool, which is milled horizontal groove 11. Inputs 10b, 11b and outputs 10C, 11C are arcuate, the radius depends on the feed speed of the panel 2.

Usually panel 1.n, 2.n on its upper side 18 provided with a decorative coating that can be napechatano directly on the upper side 18. Decorative coating is typically protected ignosticism layer, which may be superseded by structuring corresponding to the decorative surface.

A list of reference designations

1 Panel

2 Panel

3' Elastic element

3A, the End

3b, the End

3C the Outer face

3d bottom face

3E, the Upper side

4 the Locking face

5 the Shoulder

6 the Shoulder

9 Groove

9a, the Base of the groove

10' Groove

10A Inner wall

10b Entrance

10C Output

11 Groove

11b Entrance

11C Output

12 Surface vertices is s

13 bearing surface

14 Dust pocket

15 Vertical surface/surface seal

16 Vertical surface/surface seal

17 Basis

18 Upper side

19 bottom side

20 Krukovii

21 Krukovii

22 Fixing elements / Locking tab

23 Dust pocket

24 Surface

25 Decorative layer

26 Upper tongue

27 Wall

28 Reference region

29 Notch

30 Crest

31 Rear groove

32 the Shoulder

33 Upper side

34 Front side flange

35 the Surface of shoulder

36 Free space

37 Rear groove

38 Fixing plot

39 Gap

In Width

E Plane

E Plane

EvThe plane styling

N the Horizontal direction

L Length

Q Transverse direction

RiA number

V Vertical direction

I; I' Longitudinal face

II, II' Cross the line

α Angle

µ Corner

1. The way glueless laying flooring panels (1.n, 2.n, ...), primarily consisting of chipboard material, such as MDF or HDF, which at its opposite longitudinal edges (I, I') and transverse edges (II, II'), respectively provided corresponding to each other profiling in the premises for the formation of a solid floor surface in the plane (Ev) ukladki is, where multiple panels (1.1, 1.2, ... 2.1, 2.2) their lateral edges (II, II') are combined in a number of R3and their longitudinal edges (I, I') are combined in several rows Rnand fixed relative to each other, which
a) for the formation of the first row (R1),
a1the first panel (1.1) spread on a plane (Ev) styling, and a second panel (1.2) its transverse face (II') is applied to the lateral faces (II) the first panel (1.1), and both panels (1.1, 1.2) by turning down or vertical lower panel (1.2) on the plane (Ev) styling are combined and fixed to each other, while
a2so will connect and fix such number of panels (1.n)until you have completed the first row of R1,
b) for the formation of the second series of R2,
b1another first panel (2.1) its longitudinal edge (I) is applied to the longitudinal edges (I') at least one posted in the first row of R1panel (1.1, 1.2), and by turning down the plane (Ev) laying connect and fix this at least one panel (1.1, 1.2),
b2another second panel (2.2) its longitudinal edge so applied to the longitudinal edges (I') at least one posted in the first row (R1,panel (1.2, 1.3), which by its rotation down to a plane (Ev) laying longitudinal face (I) the other panel (2.2)are combined and fixed with a longitudinal face (I') at least one panel (1.2, 1.3) in the first row (R1), and the transverse face (II) which are combined and fixed with a transverse face (II') of the first panel (2.1) in the second row,
b3) thus connect and fix such number of panels (2.n)until it is fully lined second row (R2),
C) for the formation of the third (R3and every other number (Ri) steps b1to b3repeat up until the room is fully tiled, with
g) when the connection and fixation of the transverse edges (II, II') at least one consisting of a base material of the panel and integrally connected with it the locking element (3) single panel (1.2, 1.3) comes into contact with the snap with a locking face (4) of the other panel (1.1, 1.2), and
d) at commit time by turning down or lowering the panel (1.2, 1.3, ...) on the locking element (3) in the vertical direction (V) impact force, which is at least partially converted into acting in the horizontal direction force component, and then calls a counter-directional movement of latching the locking element (3),
characterized in that the movement of the locking element (3) in the horizontal direction (H)and vertical direction (V) provide by releasing the locking element (3) with respect to the base (17) of the panel.

2. The way is about to claim 1, characterized in that, in order to release the locking element (3) of the base (17) is provided at least one essentially horizontal groove (11) and at least one essentially vertical groove (10).

3. The method according to claim 1, characterized in that the locking element (3)at least at one of its ends (3a, 3b) connected to the base (17).

4. The method according to claim 1, characterized in that, in order to release the locking element (3') there is at least one outgoing from the bottom side (19) of the panel groove (10').

5. The method according to claim 4, characterized in that the essentially vertical groove (10') at least partially passes through the lower fixing section (38).



 

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19 cl, 6 dwg

Raised floor panel // 2250316

FIELD: building, particularly raised floor panels installed on adjustable supports and used for assembling floors in rooms equipped with computer or other electronic devices.

SUBSTANCE: panel includes inner load-bearing layer of resin-bonded chipboard material, upper and lower layers of sheet metal. At least two opposite sides of inner load-bearing layer are impregnated with primer and aqueous glue is applied to the sides. Above sides are then covered with polyvinylchloride coating. Primer and aqueous glue are acrylic-based and include dag. Inner layer comprises at least two layers with increased density cooperating with upper and lower panel layers. Electric resistance between outer surfaces of opposite panel ends covered with polyvinylchloride coating is not more than 0.1 Ohm.

EFFECT: improved service properties and increased panel rigidity.

9 cl, 3 dwg

FIELD: building, particularly raised floors in offices adapted for heavy equipment installation.

SUBSTANCE: panel includes tray-like metal member forming panel base and side walls having folded inwards edges extending in parallel to panel base. Arranged inside tray is load-bearing layer covered with metal sheet. Load-bearing layer has non-uniform density along height thereof and includes groove extending along layer perimeter. Metal sheet has peripheral extension formed in lower side thereof and cooperating with groove. Folded edges are connected with metal sheet in area of contact between extensions and grooves, outer surfaces thereof are in plane with outer surface of metal sheet connected to inner load-bearing layer by depressions and/or glue.

EFFECT: increased load bearing capacity and rigidity.

8 cl, 3 dwg

Raised floor panel // 2250318

FIELD: building, particularly raised floors for offices equipped with computers.

SUBSTANCE: panel includes bearing plate of timber-based material enclosed with metal shell from all plate sides. Shell is formed as two boxes, namely upper and lower ones. Each box has rectangular part defining upper and lower panel sides, and side edges folded along rectangular part perimeter. Folded side edges extend over half of end panel side height. Area of rectangular part of upper box exceeds that of lover part by (4-5)δ value, where δ is thickness of upper box. Folded side edges of upper and lower boxes are equal in height. End parts of adjacent side edges of each end plate side are pressed together in overlapped manner.

EFFECT: improved antistatic properties of raised floor, increased reliability of panel connection.

7 cl, 2 dwg

False floor panel // 2252993

FIELD: building units, particularly false floors elevated above base and supported by adjustable supports.

SUBSTANCE: false floor defining a chamber for communication lines consists of panels. Floor panel comprises inner load-bearing layer of flakeboard, upper decorative layer of vinyl plastics and lower layer of sheet material. At least two opposite side surfaces of inner layer are impregnated with priming agent and aqueous adhesive is applied on above surfaces to which polyvinylchloride coating is further connected. Priming agent and aqueous adhesive are formed on acrylic base and dag is added to above substances. Inner layer includes at least two high-density sub-layers contacting with upper and lower panel layers. Electrical resistance between outer surfaces of opposite panel ends covered with polyvinylchloride coating is not more than 0.1 ohm.

EFFECT: increased strength of floor panel.

10 cl, 3 dwg

FIELD: building, particularly floor members for underfloor heating/cooling systems.

SUBSTANCE: floor member comprises sheet with at least one groove, heat-conducting layer extending over one main sheet surface and along each groove side to form depression for heat-conducting wire receiving opened from top side thereof. Depression tightly encloses wire and passes over half of cross-sectional perimeter thereof. Upper wire side is flush with upper sheet surface or located below thereof. Sheet has thin foldable foil with thickness of less than 200 μm.

EFFECT: reduced floor member thickness, increased simplicity of floor member dimension selection by cutting foil inside the groove.

6 cl, 10 dwg

FIELD: building, particularly floor, ceiling and wall covering.

SUBSTANCE: support includes square lower bearing plate made of flexible metal sheet material and upper bearing plate. The plates have central orifices. Central orifice of lower plate comprises rod receiving recess and is surrounded with annular depression having depth not exceeding sheet thickness. Central orifice of upper plate comprises flange. The plates are provided with radial grooves located so that convex surfaces thereof face each other. Depression and grooves have oval cross-section and oval or wavy cross-sections in connection areas in-between. Upper plate is made of the same material as the lower one. Orifices for fastening members receiving formed in lower plate and holes for gasket fixing made in upper plate are coaxial and created along stiffening ribs extending along square diagonals.

EFFECT: increased support resistance and strength thereof along with reduced material consumption, decreased mass and simplified manufacture.

14 cl, 6 dwg

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