Assembly of board for floor boarding and means for fixing the same to adjacent boards

Abstract: There is disclosed an assembly of board for floor boarding and means for fixing the same to adjacent boards, said board comprising a frame (100), of generally rectangular shape, suitable for accommodating therein a flooring surface, such frame comprising a first pair of opposite beams (1) and a second pair of opposite beams (2) connecting the first pair of beams (1). The beams (1) of said first pair are provided, at least at their ends, with recesses suitable for housing clamps (101, 102, 103) for coupling the board with adjacent boards. The recesses are associated to releasable snap engagement means (73-75) that engage in respective seats (76) provided for on the clamps (101-103) to prevent the clamps from slipping out of said recesses.

Description: The present invention deals with an assembly of board for floor boarding and means for fixing the same to adjacent boards. It is known that a flooring surface (stage, planking, buoyant pavement etc.) is composed of vertical posts, generally of iron, joints connecting the posts to each other so as to confer rigidity to the structure, and a rigid surface laid on and/or fixed to the structure that forms the real flooring surface, also called "technical boarding". Said floor boarding consists of a plurality of boards, that can be made of a metal frame superficially coated with wood, aluminium, tiles or other suitable material. Said boards are close to each other, and can simply be laid on or fixed to the bearing structure. EP-A-0 244 383, EP-A-0 594 874 and DE-A-4 443 198 disclose the closet state of the art. In view of the state of the art described above, object of the present invention is to provide for a board assembly for floor boarding of the type simply laid on a bearing structure, and respective means for fixing the board to adjacent boards that allows to obtain a continuous and steady flooring platform, and that allows also to speed the assemblage and disassemblage operations. According to the present invention, such object is attained by means of an assembly of board for floor boarding and means for fixing the same to adjacent boards, as defined in claim 1. Thanks to the present invention, it is possible to build a stage, a planking, a buoyant pavement etc. in which the boards forming the flooring surface are fixed to each other in such a way so as to result solid, thus forming a single continuous steady platform. The boards assemblage operations to form the boarding are substantially simplified, and the disassemblage of the boards is also rapid and easy. Preferably, said clamps are of three types: one to allow the connection of inside boards and two for the connection of the perimetric ones. These and other characteristics and advantages of the present invention will be rendered more evident by the following detailed description of some embodiments, illustrated as a non-restrictive example in the enclosed drawings, where: Figure 1 is a perspective view of a boarding frame according to the invention; Figure 2 is an enlarged perspective view of a comer of the frame of Figure 1, in which a clamp for connection with the adjacent boards is inserted. Figure 3 is a section according to a plane orthogonal to the frame, passing through the line III-III of Figure 2; Figure 4 shows a perspective of a group of boards coupled so as to form the floor boarding; Figure 5 shows a perspective of a connecting clamp for the connection of inside boards of the floor boarding; Figure 6 shows a perspective of a first form of connecting clamp for the connection of peripheral boards of the floor boarding; Figure 7 shows a perspective of a second form of connecting clamp for connection of peripheral boards of the floor boarding. With reference to Figure 1, there is shown a perspective of a frame 100 of a board for floor boarding according to the invention; the frame has a generally rectangular shape, and comprises a first pair of internally hollow opposite beams (whose section can be seen in Figure 3), a second pair of beams 2 connecting the first pair of beams at their ends, and a plurality of beams 3 acting as a support to a pavement element or flooring surface (not shown) that is inserted over them. Thanks to the shape of the frame 100, in particular to the fact that beams 1 and 2 are provided with respective longitudinal edges 70, 71, the pavement is inserted inside the frame without the possibility of a translatory movement. Figure 2 shows in detail the comer zone 4 of the frame of Figure 1. Inside the beam 1, that as mentioned is internally hollow, a clamp 101 is inserted for coupling the board to an adjacent board. As it will be explained later, the clamp 101 is one of three different clamps, and it is used for coupling the peripheral boards of a stage. To the vertical inside wall 72 of the beam 1, near its end, there is applied, for example by means of rivets or weld beads, an elastic plate 73, preferably metallic, to the inside wall of which a pawl 74 is applied. In correspondence of the pawl 74, in the inside wall 72 of the beam 1 a through hole 75 is drilled suitable to accommodate the same pawl 74. The elastic plate 73 stresses the pawl to penetrate into the hole 75 (for clearness in Figure 2 the elastic plate is not shown in rest position). The clamp 101 is also provided, in its vertical wall, with a through hole 76 serving the purpose to receive the pawl 74 (Figure 3): in this way, the clamp 101 cannot be slid out of the beam 1 unless acting on the elastic plate 73 in such a way as to bring the pawl 74 out of the hole 76. Figure 4 shows a group of four frames 80-83 of the type shown in Figure 1 laid near so as to form a stage boarding. In the figure coupling zones of the frames 51, 51', 52, 52' and 53 are marked out: these three zones correspond to three different types of connection clamps, that will be described now. For the coupling of frames 80-83 in the zone 53 in which the four frames have a common vertex, the clamp 103 shown in Figure 5 is used; such clamp is made substantially of two beams 32 with a "U" section joined by means of a projecting cross beam 31, which divides them into two parts substantially with equal length that we will refer to as arms. In diagonally opposite positions two through holes 77, 78 are made that are suitable to receive, when the clamps arms are inserted into the beams I of the frames 80-83, the pawls provided at the end of the frames 81 and 82; in this way the frames 81 and 82 cannot be taken apart of each other in the direction of their beams 1; in addition the frames 80 and 81 cannot be taken apart in the direction of their beams 2. For the coupling of frames 80 and 81 in the zone 51 the clamp 101 shown in Figure 6 is used. Said clamp 101 is substantially obtained from the clamp 103 by eliminating one of the two "U" beams, reappraising the length of the beam 31 and drilling a new hole on the same side of the previous one. The clamp therefore shows two holes 65 , 66 suitable to accommodate, when the clamp arms are inserted into the beam 1 of the frames 80 and 81, the respective pawls 74 provided at the ends of the frames 80 and 81; in this way the frame 80 is solidly connected with the frames 81 and 82. In an analogous way, in order to couple the frames 82 and 83 in the zone 51' another clamp 101 is used; in this way the frame 83 is also solidly connected with the others. Finally, in the zones 52 and 52' the clamp 102 is inserted. Said clamp is substantially obtained by clamp 103 of Figure 5 by eliminating the two fore or back arms of the same. Said clamp is therefore provided with a hole 67 suitable to receive the pawl 74 found at the end of the frame 83 (zone 52) and the pawl 74 found at the end of the frame 80 (zone 52'); in this way the frames 81 and 83, even if they are not subject to different loads, lay on the same plane ( that is the clamp 102 prevents the boards to off-centre). In addition, the clamp 102 can be utilised for fixing (to the beam 31) a possible railing. By means of such connections, each board is rigidly connected to the adjacent ones thus eliminating the possibility of any roto-translatory movement. It is pointed out that the shape and the materials which the clamps are made of are not subject to limitations: the clamps 101, 102 and 103 can be of any shape and can be made of any suitable material.

Claims: Floor boarding assembly comprising a plurality of adjacent boards and fixing means for fixing adjacent boards together, each board being formed by a substantially rectangular frame (100) for accommodating a flooring surface, said frame comprising a first pair of parallel beams (1) and a second pair of parallel beams (2) connecting the first pair of beams (1), said first pair of beams (1) having open ends forming longitudinal recesses, said fixing means comprising elongated clamps (101-103) slidingly insertable in said recesses for coupling the board with adjacent boards and releasable snap engagement means (73-75) attached to said first pair of beams (1) near said open ends to engage respective seats (76; 65, 66; 67; 77, 78) in said clamps (101-103) to prevent the clamps from slipping from said recesses, characterized in that said releasable snap means (73-75) comprise, for each beam (1), an elastic plate (73) arranged on the outside of the beam (1) and fastened to a wall (72) thereof near the open end of the beam (1) and a pawl (74) attached to said elastic plate (73) and elastically urged thereby into a recess of a respective clamp (101-103) through a passing hole (75) of said wall (72) of the beam (1). Assembly according to claim 1, characterized in that said wall (72) of the beam (1) is a wall faced towards the inside of the frame (100). Assembly according to claim 1, characterized in that said clamps (101) are formed by two beams with an external transversal shoulder (31) at their connecting section. Assembly according to claim 1, characterized in that said clamps (102) are formed by two parallel beams which are connected to each other at one end provided with an external transversal shoulder (31). Assembly according to claim 1, characterized in that said clamps (103) are formed by a pair, of identical beams (32) each formed by two beam sections with an external transversal shoulder (31) at their connecting section, the external shoulders (31) of said beams being integrally formed with each other. Assembly according to any preceding claim, characterized in that said first pair of beams (1) are tubular means.

Inventors: CAZZOLARO SERGIO, CAZZOLARO, SERGIO
Applicants: CAZZOLARO SERGIO, CAZZOLARO, SERGIO
Application year: 1997
Main classification: E04F15
IPC codes: E04F15