In the existing design solutions, the decks exposed to water, in particular, to precipitations, consist of wood boards laid usually parallel to each other, in row, with small gaps between the boards. In lateral surfaces the boards are not provided with grooves and tongues and are fastened to the joists by nails or botts. The deck board has a drip along its bottom edges. The part of the vertical section of the drip profile, towards the water leak, runs from the bottom to the top. It causes the water drops to fall downwards from the lowermost part of the drip. Arranged between the deck board and the joist is a distance piece used to move away the drip from the joist part located under the drip, called hereinafter also the distance piece for moving away the drip from the joist. For instance, a pad or a suitably profiled joist fragment which between the drips of the same board has a greater height than the fragment, which is located under the drip, may be used as such distance piece.

The deck boards are laid on structural joists, assembly joists or other structural elements and are fastened to them by connecting links or adhesive binder, or are laid without connecting links. The structural joists, assembly joists or other deck structural elements are wooden, reinforced concrete, metal or plastic, etc, usually flat laid on supports, foundation elements, etc.

In this invention the essence of the design solution is the deck which is a constructional element designed for the use, among other things, on an unroofed area, outdoor terraces, platforms, jetties or in rooms where water may run out on the floor or the deck being an element of garden furniture such as bench, armchair and chair seats or tabletop, the deck consisting of boards, in particular, wood boards laid on joists and fastened to them by connecting links or adhesive binder, or laid on joists without connecting links ; the deck whose board has a drip along its bottom edges, and arranged between the deck board and the joist is a distance piece used to move away the drip from the joist part located under the drip; the deck in which: -the upper surface of the joist fragment located under the drip is arranged at an angle of 0° < x < 90'relative to the bottom main board surface ; - the front surface of the longitudinal drip is in line with the front vertical surface of the board ; - the drip is provided with an additional drip - the surface of joint between the board and the distance piece used to move away the drip from the joist fragment located under the drip is arranged above the lowermost part of the drip; - the distance piece used to move away the drip from the joist located under the drip has a ventilating riffle ; -the distance piece used to move away the drip from the joist fragment located under the drip has a tongue to fasten the board and the board has a corresponding groove to fasten this element ; - the drip is located around one surface of the joint between the board and the distance piece used to move away the drip from the joist fragment located under the drip; the drip is located around more than one surface of the joint between the board and the distance piece used to move away the drip from the joist fragment located under the drip; The deck according to the design solution of this invention allows obtaining the following non-obvious and favourable effects as compared with the existing decks in use, namely : the arrangement of the upper surface of the joist fragment located under the drip at an angle 0° < x < 90° relative usually to the horizontal, bottom, main surface of the board causes that water is not accumulated on the board surface, therefore, water which fall onto the joist through the slot between the boards splashes only in the amount in which it has fallen through the slot ; moreover, water which falls onto the joist through the slot between the boards splashes mainly in the direction of the greatest inclination of the upper surface of the joist fragment located under the drip ; it provides that much less water splashes in the direction of the joint between the board and the distance piece used to move away the drip from the joist; it allows the board joint to be kept dry, consequently, the life of the wood board to be extended ; moreover, the arrangement of the upper surface of the joist fragment located under the drip, at an angle of 0° < x < 90° relative usually to the horizontal, bottom, main surface of the board causes that impurities such as sand, leaves and animal's hair are not accumulated on the board surface because the impurities slip down from the surface arranged at an angle to usually horizontal, bottom, main surface of the board ; instead, in the existing decks in use-water accumulates on the upper surface of the joist fragment located under the drip because the surface is parallel usually to the horizontal, bottom, main surface of the board ; the water which drops on the joist through the slot between the boards splashes together with water which accumulates on the joist ; when splashing in all directions the water may penetrate into the stot between the board and the distance piece used to moved away the drip from the beam; water accumulated in this slot may cause the board wood to rotten and moulder away, moreover, in the existing decks in use, impurities such as sand, leaves and animal's hair may accumulate on the upper surface of the joist fragment located under the drip, which is parallel, usually to the horizontal, bottom main surface of the board, and such impurities accumulated in excess adjoin the deck board and such wet impurities cause the board wood to rotten and moulder away; the design solution consisting in that the front surface of the longitudinal drip is in line with the front, vertical surface of the board and allows maintaining the same cross-section along the board length, which causes that the board in principle uniformly and regularly is deformed along the board length, e. g. due to the change in air humidity ; moreover, in many cases, the technique of making such a drip is simpler than that used for making the existing drip in use; in the existing drips in use the front surfaces of the longitudinal drip are not in line with the front vertical surface of the board ; thus, the same cross-section along the board length is not maintained, which in principle causes that there are not identical and regular board deformations which may occur, for instance, as a result of changes in air humidity; the design solution consisting in that the front surface of the transverse drip is in line with the lateral, vertical surface of the board, and allows maintaining the same cross-section a) ong the board width, which causes that the board in principle uniformly and regularly is deformed along the board width, e. g. due to the change in air humidity ; moreover, in many cases, the technique of making such a drip is simpler than that used for making the existing drip in use ; in the existing drips in use the front surfaces of the transverse drip are not in line with the lateral vertical ! surface of the board ; thus, the same longitudinal section along the board width is not maintained, which in principle causes that there are not identical and regular board deformations which may occur, for instance, as a result of changes in air humidity ; the use of an additional drip for the board drip provides that water does not leak on the upper surface of the board drip and does not penetrate into a slot in the joint between the board and the distance piece used to move away the drip from the beam; water accumulated in this joint may cause the board wood to rotten and moulder away ; instead, in the existing decks in use, water is leaking on the upper surface of the board drip and penetrates into a slot of the joint between the board and distance piece use to move away the drip from the beam, which may cause the board wood to rotten and moulder away in the place of this joint ; the location of the surface of the joint between the board and the distance piece used to move the drip away from the beam, above the lowermost drip part allows moving away the slot of this joint using a drip, against water splash that may occur when water falling through the slot between the boards hits the joist; instead, in the existing decks in use, the surface of the joint between the board and the distance piece used to move the drip away from the joist is positioned on the same level as the lowermost part of the drip; the joint slot is not covered by a drip, e. g. against water splash when water falling through the slot between the boards hits the joist. the use of a ventilating riffle in the distance piece used to move the drip away from the joist fragment located under the drip allows easier evaporation of water which may penetrate into a slot of the joint between the board and the distance piece used to move away the drip from the beam; it protects the board wood against rottening and mouldering ; instead, in the existing decks in use, the upper surface of the distance piece used to move away the drip from the joist is usually the surface that tightly adjoins the board surface ; water which may accumulate in the slot between the board and the distance piece used to move away the drip from the joist cannot quickly evaporate from the said slot, thus causing the board wood to rotten and moulder away. the use of the tongue in the distance piece used to move away the drip from the joist fragment located under the drip and its corresponding groove in the board enables easy mounting and dismantling of the board on the distance piece used to move away the drip from the joist without the necessity to use the connecting links or adhesive binder ; instead, in the existing decks in use the distance piece used to mover away the drip from the joist has no tongue and the board has not a corresponding grove, therefore, it is more difficult to fasten the board to the distance piece used to move away the drip from the joist, therefore, connecting links are required to be used; the use of the design solution consisting in that the drip is located around one surface of the joint between the board and the distance piece used to move away the drip from the beam, enables retaining the maximum bending strength of the board between the board supports ; this solution enables also obtaining, for instance, a rectangular shape of both vertical front surfaces of the board, moreover, in many cases the technique used to make such drip is simpler than the technique used to make the existing drip in use; in the existing decks in use the drip is located along the board between the subsequent board supports, which reduces the bending strength of the board between these supports ; the use of the solution consisting in that the drip is located around more than one surface of the joint between the board and the distance piece used to move away the drip from the beam, enables retaining the maximum shear strength of the board from one side of this joint, with the simultaneous possibility of retaining the maximum bending strength of the board on the other side of this joint; this solution enables also obtaining, for instance, a rectangular shape of both vertical front surfaces of the board, in the example of execution, in which the drip is located around all the surfaces of joint between the board and the distance piece used to move away the drip from the beam, or in the example of execution, in which the drip is located around the extreme pairs of these surfaces; moreover, in many cases, the technique used to make such drip is simpler than the technique used to make the existing drip in use; in the existing decks in use the drip is not located around more than one surface of joint between the board and beam, which makes it impossible to retain the maximum shear strength of the board from one side of the joint, with simultaneous retaining of the maximum bending strength of the board from the other side of the joint.

The object of the invention is diagrammatically shown on the figure where : Fig. 1 shows the fragment of the deck-cross-section B-B ; Fig. 2 shows the fragment of the deck-cross-section A-A ; Fig. 3 shows the fragment of the deck as per Fig. 1-2-top view ; the deck, as per Fig. 1-3 consists of boards laid on joists and fastened to them by connecting links, the board has a drip along its bottom edges, located between board and the joist is the distance piece used to move away the drip from the beam, and the upper surface of the fragment of the joist located under the drip is arranged at an angle of 0° < x < 90° relative to the bottom, main surface of the board ; Fig. 4 shows the fragment of the deck-cross-section D-D ; Fig. 5 shows the fragment of the deck--top view as per Fig. 4-5 ; - the deck as per Fig. 4-6, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, and the front surface of the longitudinal drip is in line with the front vertical surface of the board; Fig. 7 shows the deck fragment-cross-section F-F ; Fig. 8 shows the deck fragment-cross-section E-E ; Fig. 9 shows the deck fragment-top view as per Fig. 7-8 ; - the deck as per Fig. 7-9, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, and the front surface of the transverse drip is in line with the side vertical surface of the board ; Fig. 10 shows the deck fragment-cross-section H-H ; Fig. 11 shows the deck fragment-cross-section G-G ; Fig. 12 shows the deck fragment-top view as per Fig. 10-11 ; - the deck as per Fig. 10-12, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, and the drip has an additional drip ; Fig. 13 shows the deck fragment-cross-section J-J ; Fig. 14 shows the deck fragment-cross-section 1-1 ; Fig. 15 shows the deck fragment-top view, as per Fig. 13-14 ; -the deck as per Fig. 13-15, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, and the drip has an additional drip ; Fig. 16 shows the deck fragment-cross-section L-L; Fig. 17 shows the deck fragment-cross-section K-K; Fig. 18 shows the deck fragment-top view as per Fig. 16-17 ; - the deck as per Fig. 16-18, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, and the surface of joint between the board and distance piece is situated above the lowermost part of the drip; Fig. 19 shows the deck fragment-cross-section N-N ; Fig. 20 shows the deck fragment-cross section M-M ; Fig. 21 shows the deck fragment-top view as per Fig. 19-20 ; -the deck as per Fig. 19-21, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the beam, which has the ventilating riffle (13) ; Fig. 22 shows the deck fragment-cross-section P-P ; Fig. 23 shows the deck fragment-cross-section O-O ; Fig. 24 shows the top view of the deck fragment shown in Fig. 22-23 ; - the deck as per Fig. 22-23, consists of boards laid on joists, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the joist located under the drip, this distance piece has a tongue to fasten the board and the board has a corresponding groove to fasten the distance piece ; Fig. 25 shows the deck fragment-cross-section S-S ; Fig. 26 shows the deck fragment-cross-section R-R ; Fig. 27 shows the deck fragment-top view as per Fig. 25-26 ; - the deck as per Fig. 25-27 consists of boards laid on joists, fastened with connecting links to them, and the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the joist fragment located under the drip and the drip is located along one surface of joint between the board and the distance piece ; Fig. 28 shows the deck fragment-cross-section U-U ; Fig. 29 shows the deck fragment-cross-section T-T ; Fig. 30 shows the deck fragment-top view as per Fig. 28-30 ; the deck as per Fig. 28-30, consists of boards laid on joists and fastened with connecting links to them, the board has a drip along its bottom edges, arranged between the board and the joist is the distance piece used to move away the drip from the joist and the drip is located around more than one surface of joint between the board and the distance piece.

The invention, in the examples of executions, has been shown on the figure on which: the deck, as per Fig. 1-3, consists of boards (1) laid on joists (2) and fastened to them by connecting links (3), the board (1) has a drip (4) along its bottom edges, located between board (4) and the joist is the distance piece (5) used to move away the drip (4) from the joist (2), and the upper surface (6) of the fragment of the joist (2) located under the drip is arranged at an angle of 0° < x < 90° relative to the bottom, main surface (7) of the board (1); the deck as per Fig. 4-6, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), and the front surface (8) of the longitudinal drip (4) is in line with the front vertical surface (9) of the board (1); the deck as per Fig. 7-9, consists of boards (1) laid on joists (2) and fastened with connecting ! inks (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), and the front surface (8) of the transverse drip (4) is in line with the side vertical surface (10) of the board (1); the deck as per Fig. 10-12, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), and the drip (4) has an additional drip (11) ; the deck as per Fig. 13-15, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), and the drip (4) has an additional drip (11), which in this example of execution has a form of a transverse drip whose height is greater than the height of the longitudinal drip (4; the deck as per Fig. 16-18, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), located between the board (1) and the joist (2) is the distance piece (5) to move the drip (4) from the joist (2) which, in this example of execution is a pad, and the surface (12) of joint between the board (1) and the distance piece (5) is situated above the owermost part of the drip (4); the deck as per Fig. 19-21, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), which, in this example of execution, is a pad, and the distance piece (5) has the ventilating riffle (13) the deck as per Fig. 22-23, consists of boards (1) laid on joists (2), the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), distance piece (5) has the tongue (14) to fasten the board (1) and the board (1) has the corresponding groove (15) to fasten the distance piece (5); the deck as per Fig. 25-27 consists of boards (1) laid on joists (2), fastened with connecting links (3) to them, and the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2), which in this example of execution is a pad, and the drip (4) is located along one surface (16) of joint between the board (1) and the distance piece (5) ; the deck as per Fig. 28-30, consists of boards (1) laid on joists (2) and fastened with connecting links (3) to them, the board (1) has a drip (4) along its bottom edges, arranged between the board (1) and the joist (2) is the distance piece (5) used to move away the drip (4) from the joist (2) and the drip (4) is located around more than one surface (16) of joint between the board (1) and the distance piece (5).