Paving stone, set of paving stones and device for producing the same

Claim 2

A paving stone ( 10 ), made of concrete, for producing a paved surface formed by a plurality of paving stones ( 10 ) which are laid next to one another to form, between adjacent paving stones ( 10 ), longitudinal and transverse joints ( 32 , 33 ) which are filled with joint filling material, wherein: the paving stone ( 10 ) comprises an upper stone part ( 15 ), which is rectangular or square in a horizontal projection thereof, and a lower stone part ( 16 ) having a central projection ( 18 ), a depression ( 19 ) and two corner projections ( 25 ); the lower stone part ( 16 ) projects at a first longitudinal side ( 11 ) of the paving stone to from the central projection ( 18 ) having a horizontal projection which extends partially beyond an outer contour of the upper stone part ( 15 ); between the corner projections ( 25 ), the lower stone part ( 16 ) is partially recessed to form the depression ( 19 ) in a horizontal projection with respect to the outer contour of the upper stone part ( 15 ); the central projection ( 18 ) and the depression ( 19 ) have a trapezoid-shaped horizontal projection and have corresponding dimensions; the two corner projections ( 25 ) are formed in their common horizontal projection to correspond in shape and dimension to the depression ( 19 ); and the paving stone has two transverse sides ( 13 , 14 ) each of which extends essentially as a smooth, vertical and continuous plane over said lower stone part ( 15 ) and said upper stone part ( 16 ).

Claim 3

The paving stone ( 10 ) according to claim 1 , wherein the central projection ( 18 ) and the depression ( 19 ) are each centered on the first and second longitudinal sides ( 11 , 12 ), respectively.

Claim 4

The paving stone ( 10 ) according to claim 2 , wherein at least one upright side surface of the central projection ( 18 ) and the depression ( 19 ) extends parallel to at least one of the first and second longitudinal sides ( 11 , 12 ) of the paving stone ( 10 ).

Claim 5

The paving stone ( 10 ) according to claim 3 , wherein: two spacers ( 36 ), lying at a distance from one another, are located in a region of the central projection ( 18 ); a single spacer ( 37 ) is located in a region of each of the corner projections ( 25 ); a single off-center spacer ( 40 ) is arranged in a region of each of two upright end surfaces ( 34 , 35 ); and spacers ( 38 , 39 ) are located in regions of obliquely-directed flanks ( 22 , 23 ) of the paving stone.

Claim 6

The paving stone according to claim 1 , wherein a transition from upright side surfaces of the upper stone part ( 15 ) to the central projection ( 18 ) and the depression ( 19 ) of the lower stone part ( 16 ) occurs over obliquely running intermediate sloping surfaces ( 26 , 29 ) which are inclined, with respect to a vertical plane, at an angle of inclination of up to 30° but not greater than an angle of repose of the joint filing material.

Claim 7

The paving stone ( 10 ) according to claim 1 , wherein said joints ( 32 , 33 ) between adjacent paving stones ( 10 ) have a cross section diverging downwards.

Claim 8

A set of paving stones ( 10 ), each of which is defined in claim 1 , for the production of a paved surface, wherein said paving stones ( 10 ) are located adjacent to one another in continuous rows ( 41 ) of stones, and wherein within a paved surface, the central projection ( 18 ) and the depression ( 19 ) of one paving stone ( 10 ) correspond in each case with depressions or projections, respectively, of two paving stones ( 10 ) in respective ones of said rows ( 41 ) of stones.

Claim 9

The set of paving stones ( 10 ) according to claim 1 , wherein, within the paved surface, the central projection ( 18 ) of each paving stone ( 10 ) is inserted between the central projections ( 18 ) of two adjacent paving stones ( 10 ) of one of said adjacent rows ( 41 ) of stones, and wherein the corner projections ( 25 ) of each paving stone ( 10 ) are inserted in the depressions ( 19 ) of two adjacent paving stones ( 10 ) of said one adjacent row ( 41 ) of stones.

Claim 10

A set of paving stones ( 10 ) made of concrete for producing paved surfaces, comprising a plurality of paving stones ( 10 ), each according to claim 1 , and edge stones ( 42 , 43 ), wherein: the paving stones ( 10 ) run in continuous rows ( 41 ) of stones which are directed obliquely with respect to an imaginary longitudinal direction of the paved surface; the edge stones ( 42 , 43 ) form a continuous, straight delimitation of a ground covering; the edge stones ( 42 , 43 ) comprise an upper stone part ( 15 ) and a lower stone part ( 16 ) having a projection and a depression; and the edge stones ( 42 , 43 ) correspond in a region of the lower stone part ( 16 ) with a positive fit to central projections ( 18 ) and depressions ( 19 ) of adjacent paving stones ( 10 ) of two rows ( 41 ) of stones lying next to each other.

Claim 11

The set according to claim 9 , wherein two different configurations of edge stones ( 42 , 43 ) are arranged in alternation along the limitation of the ground covering, with a first edge stone ( 42 ) having, in a region of the lower stone part ( 16 ), a part-projection ( 44 ) which corresponds to the central projection ( 18 ) of an adjacent paving stone ( 10 ), and with a second edge stone ( 43 ) having, in a region of the lower stone part ( 16 ), a corner projection ( 45 ) which corresponds to the depression ( 19 ) of an adjacent paving stone ( 10 ).

Claim 12

A set of paving stones made of concrete for producing paved surfaces, with a curved set ( 47 ) of curved stones ( 46 ) of a wedge-shaped form, wherein: the curved stones ( 46 ) comprise an upper stone part ( 15 ) and a lower stone part ( 16 ) having a first projection ( 18 ), a depression ( 19 ) and two comer projections ( 25 ); the lower stone part ( 16 ) projects at a longitudinal side ( 11 ) to form the first projection ( 18 ) whose horizontal projection extends partially beyond an outer contour of the upper stone part ( 15 ); at a longitudinal side ( 12 ) opposite the first projection ( 18 ), the lower stone part ( 16 ) partially projects to form two comer projections ( 25 ) in its horizontal projection with respect to the outer contour of the upper stone part ( 15 ); between the comer projections ( 25 ), the lower stone part ( 16 ) is partially recessed to form a depression ( 19 ) in its horizontal projection with respect to the outer contour of the upper stone part ( 15 ); the first projection ( 18 ) and the depression ( 19 ) have a trapezoid-shaped horizontal projection and are formed with corresponding dimensions; the two corner projections ( 25 ) are formed in their common horizontal projection to correspond to the depression ( 19 ); two upright transverse sides ( 13 , 14 ) of the curved stone ( 46 ) run essentially continuously over the lower stone part ( 15 ) and the upper stone part ( 16 ); opposite longitudinal sides ( 11 , 12 ) of the curved stone ( 46 ) converge toward each other; and a plurality of curved sets ( 47 ), laid next to one another, form a paved surface with a curved layout, wherein the first projections ( 18 ) and the depressions ( 19 ) of adjacent curved stones ( 46 ) of the curved sets lying next to each other correspond to one another for being laid with a horizontal and vertical interlocking composition.

Claim 13

A set of paving stones made of concrete for producing paved surfaces, with a curved set ( 47 ) of curved stones ( 46 ) of a wedge-shaped form, wherein: the curved stones ( 46 ) comprise an upper stone part ( 15 ) and a lower stone part ( 16 ) having a first projection ( 18 ), a depression ( 19 ) and two comer projections ( 25 ); the lower stone part ( 16 ) projects at a longitudinal side ( 11 ) to form the first projection ( 18 ) whose horizontal projection extends partially beyond an outer contour of the upper stone part ( 15 ); at a longitudinal side ( 12 ) opposite the first projection ( 18 ), the lower stone part ( 16 ) partially projects to form two comer projections ( 25 ) in its horizontal projection with respect to the outer contour of the upper stone part ( 15 ); between the comer projections ( 25 ), the lower stone part ( 16 ) is partially recessed to form a depression ( 19 ) in its horizontal projection with respect to the outer contour of the upper stone part ( 15 ); the first projection ( 18 ) and the depression ( 19 ) have a trapezoid-shaped horizontal projection and are formed with corresponding dimensions; the two corner projections ( 25 ) are formed in their common horizontal projection to correspond to the depression ( 19 ); two upright transverse sides ( 13 , 14 ) of the curved stone ( 46 ) run essentially continuously over the lower stone part ( 15 ) and the upper stone part ( 16 ); opposite longitudinal sides ( 11 , 12 ) of the curved stone ( 46 ) converge toward each other; and a plurality of curved sets ( 47 ), laid next to one another, form a paved surface with a curved layout, wherein the first projections ( 18 ) and the depressions ( 19 ) of adjacent curved stones ( 46 ) of the curved sets lying next to each other correspond to one another for being laid with a horizontal and vertical interlocking composition.

Claim 14

Device for producing paving stones from concrete, to be specific curved stones ( 46 ) with undercuts for vertically linking adjacent paving stones or curved stones ( 46 ), in a concrete mould which rests on an underlay which can be pulled away to the side in a horizontal plane, to be specific on a pulling plate ( 49 ), on the upper side of which ridges are arranged for limiting side surfaces of the paving stones, characterized in that the moulding ridges ( 51 ) are formed such that they diverge in the pulling direction of the pulling plate ( 49 ), with an increasing transverse dimension or width.

Claim 15

Device for producing paving stones from concrete, to be specific curved stones ( 46 ) with undercuts for vertically linking adjacent paving stones or curved stones ( 46 ), in a concrete mould which rests on an underlay which can be pulled away to the side in a horizontal plane, to be specific on a pulling plate ( 49 ), on the upper side of which ridges are arranged for limiting side surfaces of the paving stones, characterized in that the moulding ridges ( 51 ) are formed such that they diverge in the pulling direction of the pulling plate ( 49 ), with an increasing transverse dimension or width.

Claim 16

Device according to claim 12 , characterized in that the paving stones or curved stones ( 46 ) are arranged within the concrete stone mould in rows in such a way that transverse rows ( 53 ) of the paving stones running in the pulling direction of the pulling plate ( 49 ) have a wedge-shaped cross section that decreases in the pulling direction.