Method to manufacture panel, first of all floor panel
SUBSTANCE: panel at least on two side faces arranged oppositely to each other has the same profiling as two identically made panels arranged as capable of interlocking with each other in horizontal and vertical directions by means of a vertical connection movement. Interlocking in the vertical direction is provided due to a solid elastic element made from a core on a side face. The elastic element is latched to an interlocking edge stretching substantially into the horizontal direction.
EFFECT: improved operational characteristics of the floor.
6 cl, 9 dwg
The invention relates to a method of manufacturing a panel, the first floor panel, with a core of wood composite material, the upper side and the lower side, while the panel has at least two spaced opposite lateral sides is corresponding to each other profiling that made two identical panels made with the ability to connect and interlock with each other in horizontal and vertical directions by means of essentially vertical connecting movement with the lock in the vertical direction is achieved through at least one is arranged to move in a horizontal direction of the elastic element, which when the coupling movement snaps for extending essentially in the horizontal direction of the locking edge.
A panel of this type is known, for example, from DE 20112474 U1 or EP 1350904 A2.
From EP 1650375 A1 famous panel, which is not integrally made of a core. Executed on this panel lock type (circuit) is provided, preferably, on the transverse side of the floor panel. However, the lock may be provided on the longitudinal side, or as on the longitudinal side and a transverse side. Spring element consists of plastic and vstall the n in the horizontal passing through the groove on one side and on its upper side has a beveled edge. Similarly, door hinge, spring element due to the beveled edge is pressed a new dockable panel, when its lower edge lays on the bevel and it goes on. When the new imposed by the panel fully descended to the ground floor, the elastic element is snapped into the groove made on the opposite side. To make this elastic element necessary special tools for injection molding, whereby the production is quite expensive. In addition, to achieve sufficient strength values should be used in high-quality plastic, which further increases the cost of springy element. If you are plastic with too small values of strength, this leads to too large deviations springy element from the nominal size, as only by this it is guaranteed that can be formed or transferred by the corresponding forces.
Due to the fact that the locking element is designed as a separate part, give rise to additional costs. Because of the technology of manufacture of the locking element is spatially remote from the panels so that the integration in the continuous process of production, first of all panels for flooring, is likely impossible. In the DRS different materials, chipboard material on one side and plastic on the other hand, the alignment tolerances for the manufacture of two separate production processes is expensive and costly. As the locking in the vertical direction in the absence of the locking element would be inefficient, the locking element must be additionally secured against falling out is made on the side edge of the groove when the further manufacturing processes and transportation. This protection is also costly. An alternative to this, the locking element could be provided to the consumer available separately.
Increasingly referred to sexual panels are laid (laid on the floor) by non-professionals, so that the effect of the missing experience fundamentally there is a possibility that the original desired number of locking elements is determined incorrectly, and they are purchased in sufficient number in order to comply fully with the laying indoors. In addition, it is not excluded that at the insertion of springy elements layman makes a mistake that leads to the precise arrangement impossible and connection over time breaks down that refers the consumer to the account supplied by the manufacturer.
From DE 10224540 AND famous panel, which are located at opposite lateral sides profiled so that the formed hook fasteners to lock in the horizontal direction. For locking in the vertical direction on the connecting elements are provided spaced from each other in horizontal and vertical elements with geometric circuit and corresponding recesses, each of which is directed horizontally locking surfaces. Transverse tensile directed in such a way horizontally locking surfaces is about 0.05 to 1.0 mm in order For the coupling of two panels generally remained possible selection of sizes should be small. However, thus inevitably there is a situation that can be perceived only minor directed vertical forces. So you are a manufacturer with extremely small tolerances in order to ensure that under normal load, the connection will not disintegrate (out of gear) on the already light unevenness in the floor and/or soft clay.
Proceeding from the described problems, a method of manufacturing the panel above should be improved.
To address this problem, the method characterized in that at least one elastic element pore the STV moved transversely to the direction of the treatment tool release with respect to the core in the direction of the upper side and in the direction opposite his side and his left connected to at least one of both ends of the core in the direction of the lateral side of the panel.
Through this run production is greatly simplified. Time and the manufacturing costs are reduced due to the lack of need to connect and hold various items. In addition to the final consumer is guaranteed that all details and possibilities for further work.
Mainly that at least one elastic element is free with respect to the core in the direction of the upper side and in the direction of the opposite side face and connected to at least one of its both ends, mainly at both ends, with the core in the direction of its lateral faces. Using the dimensions of the effective connection of the elastic element core may be selected elastic elasticity.
Release (opening) of the elastic element occurs mainly through horizontal and vertical groove. Using the width of the groove define not only the strength of binding of the elastic element to the core material, but also by choosing the width of the vertical groove can be obtained for the elastic element, the emphasis in the horizontal direction so that the item is securely protected from pererasseyaniya. If the length of the side face several location is the R at a distance from each other elastic elements, increased stability due to the fact that limited free elastic to move in the longitudinal direction of the elastic element. The distance between the individual elastic elements can be chosen more or less large. The smaller this distance is, the more certainly effective surface, with which the lock so that the transmitted power in the vertical direction are correspondingly large.
Horizontal locking is effected, preferably, by means of matching krukovich elements, with the hook element having a locking edge side face made by a speaker in the direction of the upper surface of the ledge, and the hook element having elastic element side through directed towards the bottom side of the ledge.
If the outer edge of the elastic element is inclined at an angle goes to the top surface, thereby facilitates the coupling movement, as the elastic element elastically deforms with increasing moving inwards towards the core of the panel.
Passing essentially horizontally locking edge is, mainly, the side wall is made in the side face of the groove.
However, passing essentially horizontally locking edge can be the implementation of the Jena by protruding outward protrusion acting on the ledge.
To achieve the secure lock in the vertical direction acting down the ledge may be at least partially flat end surface, which ends in the same horizontal plane as made on the opposite side of the contact surface so that the two interconnected panels rely on each other.
If the hook elements are designed so that at the junction of two interconnected panels creates a pretensioning, the side faces of the panels in the area of the upper surface are pressed to each other with their vertical planes, thereby achieving the connection of the upper surfaces of the panels and prevents the formation of cracks.
The following embodiments of the invention are described below with the involvement of images showing:
figure 1 is a top view of the first panel,
figure 2 - image of two interconnected panels in cross section along the section line II-II in figure 1;
figure 3 - the corresponding figure 2 the image on the section line III-III in figure 1;
figure 4 - the first version of the panel 2 and 3;
figure 5 - the second option panel of figure 2 and 3;
figure 6 - side view of two interconnected panels according to the second embodiment;
7 - section two with the United one with the other panels in Fig.6;
on Fig - other constructive perform panels;
figure 9 - the fourth constructive performance panels.
Panels 1, 2 are made identical. They consist of a core of wood composite material or a mixture of plastic and chipboard material. Panels 1, 2 in their spaced opposite side edges I, II shaped, with the side I was treated by milling from the top side I and side II - from the bottom side 19. On the side II is made of the elastic element 3, which was formed by milling the core 17 with a horizontal milling groove 11 and essentially passing vertically groove 10. The side faces I, II have a length L. In the longitudinal direction side face II of the elastic element 3 at its ends 3A, 3b connected to the core material. Department of the elastic element 3 from the core 17 is exclusively due to the grooves 10, 11. The outer edge 3C of the elastic element 3 is inclined to the upper side 18 of the panel 2 at an angle α. Vertical surfaces of the side edges I, II processed in such a way that in the area of the upper side 18 is formed surfaces 15, 16 seal.
On the side I located opposite the elastic element 3, the panel 1 is equipped with extending essentially in the horizontal direction by the groove 9, the upper side wall of which education is the duty to regulate passing essentially horizontally locking edge. As shown in the figures, the bottom of the groove 9 extends parallel to the outer edge 3C of the elastic element 3, which facilitates the manufacture of the groove 9. However, it could also be done in the vertical direction or angle, deviating from the angle α.
Lock the two panels 1, 2 in the horizontal direction occurs through manual profiling performed by milling krukovich elements 20, 21, and in the vertical direction via the elastic element 3 in combination with the locking edge 4 of the groove 9. Stretching down the ledge 5 of the hook element 21 is made at least partially flat end surface 12, interacting with custom " kriuk " item 20 on the opposite side of the first surface 13 of the seal, which is located below the ledge 6. The end surface 12 and the contact surface 13 terminate in the same horizontal plane E so that the interconnected panels 1, 2 are based on each other. Profiling krukovich elements 20, 21 are chosen so that at the connection point is created pretensioning and vertical surfaces 15, 16 of the adjoining panels 15, 16 are pressed to each other so that the upper side 18 of two interconnected panels 1, 2 there is no visible gap. To facilitate the joining of the panels 1, 2 to which oomkah acting up ledge 6 hook element 20 and the speaker down ledge 5 hook element 21 is made of a bevel or they are rounded. To facilitate the manufacture of the elastic element 3 can either horizontal groove 11 (Figure 4), or passing essentially vertical groove 10 (5) to be continuous, that is, to extend the entire length of the side face II.
Panel 2 connect with already lying on the basis of a floor panel 1, during which the panel 2 is applied to a side face of the first panel 1, and is lowered towards the base floor by essentially vertical connecting traffic. When the elastic element 3 is concerned with its lower edge 3d of the upper side 18 of the panel 1, further connecting the movement he, due to his passing at an angle α of the outer edges 3C in contact with the surface 15 of the seal is pressed in the direction of the core 17 so that it is deflected in the horizontal direction N. Panel 2 drops further down. Upon reaching the elastic element 3 positions in front of the groove 9, in force inherent in the material returns forces he served back and sets (latched) in the groove 9, where it is adjacent its essentially horizontally passing the upper side of the 3rd to the locking edge 4. Simultaneously, the hook elements 20, 21 are engaged up until the end surface 12 comes to rest on the surface 13 of the seal. After that, the panels 1, 2 are connected and locked to each other. The inner wall 10A of the groove is 10 serves as the elastic limit of the stroke of the elastic element 3 to prevent, due to the too deep immersive move the connection of the elastic element 3 core 17 at the ends 3A, 3b will be broken. Surface, i.e. the height and width, which ends 3A, 3b are connected with the core 17, determine the degree of elasticity of the elastic element 3. As shown Fig and 9, along the length L of the side faces II can be performed several elastic elements 3. In figures 8 and 9 shows the elastic element 3. Also, it is possible that the elastic elements 3 are shorter and there are five, six or even seven or more elastic elements 3.
As shown in Fig.6 and 7 example structural implementation of the elastic element 3 is made on the bottom side 19 of the panels 1, 2. The locking edge 4 side I made through the protrusion 8 on the ledge 6. Also in this case, the release of the elastic element 3 is passing through essentially in the horizontal direction H of the groove 11 and held in the vertical direction V of the groove 10. Also here, one of the grooves 10, 11 to simplify the method of manufacturing may extend along the entire length L of the side faces II. In this constructive embodiment, the side surfaces 15, 16 are processed so as to form a hollow pocket 14, while on the side I provided protruding into the core 17 of the undercut 7.
If the vertical is AZ 10 is made sufficiently narrow, it is also possible that the elastic element 3 remains connected with a core only at one of its ends 3A or 3b. This is illustrated in the top view in figure 9. This embodiment has the advantage that the elastic element 3 can be extended in the direction of the length L of the side faces II. Then the free end 3A or 3b is based on the internal wall 10A of the groove 10.
Cut the elastic element 3 is presented in figure 2 and 3 of the panel 1, 2 through moved transversely to the direction of the processing tool. As the tool can be used milling tools, laser or water-jet cutting or fixed cutters or pulling. In each of the shown in figure 4 and 5 constructive examples require only one roaming the tool so that each of the other releases can be made through the normal rigidly mounted instruments. This reduces nonliberalized plot, which integrally connects the elastic element 3 with the core 17. Through this you can also set different power locking forces. All constructive examples, the block is split by the fact that the panels 1, 2 are shifted one relative to the other along the side edges I, II or by the side of the introduction in the connection shown, dabakarov the aqueous pin.
Usually, on the top side 18 of the panel 1, 2 is provided with decor that can be printed directly on the top side 18. Typically the decor is covered with a protective wear layer, which can be displaced corresponding to the decor structuring.
The above-described type of lock is provided preferably on the transverse side panels 1, 2, which in their longitudinal side can be connected to each other by inserting at an angle and lowering on the ground floor, as described in DE 10324540 A1. However, this profiling is possible both on the longitudinal sides and the transverse sides so that the panels can be connected to each other on all lateral sides by only vertical connecting traffic.
A list of reference designations
3 elastic element
3A, the end
3b, the end
3C external edge
3d bottom edge
3E, the upper side
4 the locking edge
10A inner wall
12 end surface
13, the contact surface
14 blind pocket
15 vertical surface
16 vertical surface
18 upper side
E is Loskot
N the horizontal direction
V vertical direction
II the side
1. A method of manufacturing a panel, the first floor panel (1, 2), with a core of wood composite material or a mixture of (17) plastic; chipboard material, the upper side (18) and bottom side (19),
this panel of at least two spaced opposite lateral sides (I, II) is corresponding to each other profiling that two identically made panels (1, 2) made with the possibility of connection and interlock with each other in a horizontal (V) and vertical (H) direction by essentially vertical connecting movement,
with the lock in the vertical direction (V) is achieved through at least one is arranged to move in a horizontal direction (H), integrally made of a core (17) on the side (II) of the elastic element (3)which, when the coupling movement is latched for extending essentially in the horizontal direction (H) a locking edge (4) due to the fact that
at least one elastic element (3) through moved transversely to the direction of the treatment tool release with respect to the core (17) is directed and the top side (18) and in the direction opposite his side face (I) and leave it connected for at least one of both ends of the core (17) in the direction of the side face (II) of the panel.
2. The method according to claim 1, characterized in that as the tool is used milling tools, laser or water-jet cutting, fixed cutters or pulling.
3. The method according to claim 1 or 2, characterized in that the elastic element (3) leave it connected to the core (17) at its both ends (3A, 3b).
4. The method according to claim 1, characterized in that the elastic element (3) release in relation to the core (17) by essentially horizontal groove (11) and, essentially, a vertical groove (10).
5. The method according to claim 1, characterized in that the length (L) side face (II) release a few located at a distance from each other elastic elements (3).
6. The method according to claim 1, characterized in that the outer edge (3C) of the elastic element (3) is cut at an angle (α) to the upper surface (18).
SUBSTANCE: elements of flooring include decorative patterns produced by mechanical stamping with combination of surfaces texture, periphery with a groove and mechanisms or fixation facilities. By arrangement of parts of decorative patterns along edges of the flooring element it is possible to form a periodical pattern of flooring, having dimensions that are larger than dimensions of a separate flooring element, through arrangement of identical flooring elements near each other in horizontal direction and next to each other in vertical direction.
EFFECT: reduction of labour costs during installation of flooring elements having decorative patterns.
10 cl, 19 dwg
SUBSTANCE: device for production of a building panel with pressed and rounded edges comprising a pressing element with a lubricating device that supplies lubricant into the pressing zone, a heating accessory.
EFFECT: invention will make it possible to increase efficiency of manufacturing floor panels with the rounded edge.
21 cl, 7 dwg
SUBSTANCE: adjustable structure comprises a set of elements, comprising a group of bearing guide shaped elements, universal bearing insert elements, bearing seat-thrust insert elements, adjusted through thrust hollow stands and support inserts that vary in their functional purpose but are joined to each other by a single structural-technical solution with the possibility of multi-version combining.
EFFECT: assembling accuracy improvement.
32 cl, 8 dwg
SUBSTANCE: there proposed is locking system and set of floor panels, which create the connection of the edge by means of combination lock with two different types of connecting devices.
EFFECT: reducing labour intensity at assembly of panels.
26 cl, 12 dwg
SUBSTANCE: shelf floor comprises flooring (2) and passing parallel to it with a support zone (3), which comprises a support profile (4) with two shelves (5,6), besides, the first shelf (6) passes mainly in parallel to flooring (2), and shelves (5, 6) are formed, accordingly, by means of mainly parallel arranged sections (7, 8 and 9,10). The novelty is the fact that the first shelf (6) and the second shelf (5) in a cross section form together a T-shaped form, besides, sections (7-10) of the shelves are accordingly made by means of roller forming and/or bending.
EFFECT: improved loading capacity and strength during bending of special floor, seamless surface of flooring.
8 cl, 2 dwg
SUBSTANCE: floor coating consists of hard floor panels, which at least at edges of two opposite sides are equipped with connecting elements interacting with each other. Connecting elements are equipped with mechanical locking facilities that make a unit, which prevent opening of two connecting floor panels in direction perpendicular to appropriate edges and parallel to the lower surface of the connecting floor panels.
EFFECT: improved operational properties of floor.
15 cl, 25 dwg
SUBSTANCE: panel part of raised floor covering comprises support layer and upper working layer, which are strongly attached to each other. In panel part there is a through hole for installation of device, comprising side wall, passing along wall of hole, which determines through seat in panel for assembly of various auxiliary types of reinforcement. Device comprises edge at sides, which is enclosed between support layer and working layer.
EFFECT: reduced labour inputs in manufacturing and assembly of raised floor.
23 cl, 11 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to use of wood fibre boards of medium density (MDF) or high density (HDF) for producing floor covering panels with MDF or HDF pith, stabilising layer and, if necessary, protective layer. Note here that is advisable to do without decorative layer, a usual thing for laminate floor covering.
EFFECT: simply laid floor covering quite similar with wood covering.
12 cl, 2 tbl
SUBSTANCE: invention refers to the field of construction, in particular, to joined systems of floor from polymer panels. Multiple polymer panels cast in the form of rigid solid, having flat upper surface and lower grating structure, joined mechanically together along side edges. Each side edge has steps that alternate, facing up and down, with concave slots on one surface and joined convex ledges on the other surface for reliable joining of adjacent panels to each other. Steps of adjacent panels are joined to each other to form full floor system. Multiple polymer panels may be cast to imitate materials of floor coating, such as brick, or coated with pieces of linoleum, carpet, synthetic grass, tile or wooden coating of floor. As an alternative solution, assembled panels may be coated with sheet of decorative material.
EFFECT: simplified assembly of floor.
20 cl, 21 dwg
SUBSTANCE: floor panel is arranged in the form of rectangular plate equipped with facilities of mechanical interlocking joint, arranged at least on its two opposite sides. Panel has layer structure, containing decorative layer, base and continuous fire-resistant later arranged directly under decorative layer and base.
EFFECT: panel fire resistance enhancement.
8 cl, 3 dwg, 1 tbl
FIELD: building, particularly floor structures in rooms adapted for electronic and electrical equipment installation.
SUBSTANCE: floor comprises height-adjustable stands with support plates to which beams with panels are connected. Each support plate has slots located in crosswise manner and opened from peripheral part thereof. Support plate is provided with covering plate having central orifice, cuts arranged in crosswise manner along its perimeter and radial extensions dividing covering plate into four equal segments. Panel plate corners rest upon segment surfaces. Covering plate has metal strips crossing at the 90o angle and disposed from lower side thereof. Two pair of slots are formed between covering plate cuts and extend in annular direction. Metal strip ends passing through above slots are bent on outer side of covering plate.
EFFECT: increased operational performance.
7 cl, 3 dwg
FIELD: building, particularly adjustable floor supports.
SUBSTANCE: support comprises combined post including rod with outer thread connected to circular ring support plate and hollow tubular member connected to lower plate secured to floor underlay. Support plate has pair of slots arranged along plate perimeter in crosslike manner and provided with covering plate having central orifice. Covering plate comprises radial extensions for floor panels installation and cuts arranged in crosslike manner to provide free beam installation in mating slots of support plate. Hollow tubular member of post has inner thread engaging mating rod thread. Hollow tubular member diameter is equal to 0.2 - 0.3 of support plate diameter. Covering plate is provided with two metal strips crossing each other in central orifice area thereof. Two opposite pair of slots are made between covering plate cuts. Ends of metal strip pass through above slots and are bent on outer surface of covering plate.
EFFECT: improved service performance.
6 cl, 4 dwg
FIELD: building, particularly adjustable supports for raised floor or double-floor structures.
SUBSTANCE: set comprises threaded rod with nut screwed on rod, short cylindrical member connected to plate by one end thereof and replaceable cylindrical head having inner conical surface. Difference between head end diameters is 0.4 - 0.6 mm. Method of support assembling involves placing cylindrical member on floor; putting replaceable head on cylindrical member and inserting threaded rod in head.
EFFECT: extended range of technical capabilities along with maintaining high connection reliability.
7 cl, 3 dwg
FIELD: building units, particularly composite raised floors made of panels and defining space for laying electric cables and/or providing ventilation.
SUBSTANCE: support comprises rod fixedly secured to support panel and body formed as sleeve and having support flange on the first end and cylindrical flange on another one. Cylindrical flange may be axially displaced and fixed on rod. Sleeve side has part with curvilinear surface extending over at least half of sleeve length defined by flanges. Curvilinear surface is formed by rotation of second-order line segment around support axis.
EFFECT: increased strength characteristics, particularly directional stability of support body subjected to axial alternating loads when temporary compression force is applied to support body.
19 cl, 6 dwg
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
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
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