Spray arrangement for dishwashers

1. A spray arrangement which is suitable for use in a dishwasher; wherein the dishwasher comprises a cleaning compartment in which the dishes are placed through a rack; such that the spray arrangement is located under and/or above the rack rotatable along a plane parallel to the base of the rack so that a cleaning liquid is sprayed to the dishes, and which comprises:

at least one main body ( 1 ) in the form of a chamber;

at least one spray arm ( 2 ) which is in connection with a side of the main body ( 1 ) and at least a part of which passes through at least one opening provided at said side of the main body ( 1 ) so as to extend out of the main body ( 1 ), wherein the spray arm ( 2 ) has at least one angled hole ( 2 a ) thereon, enables the main body ( 1 ) to rotate around an axis by spraying the cleaning liquid passing through the spray arm ( 2 ) through said angled hole ( 2 a ) by means of at least one passage opening provided at the side facing the main body ( 1 ), moves backward and forward towards the center of the main body ( 1 ) and away from its center, and brings into a closed position by moving backwards and into an opened position by moving forwards;

at least one movement mechanism which provides said movement of the spray arm ( 2 ) by transferring rotational movement of the main body ( 1 ) to the spray arm ( 2 );

at least one liquid inlet ( 1 f ) located at the main body ( 1 ), wherein cleaning liquid received from a source is passed through the liquid inlet ( 1 f ) and delivered to the spray arm ( 2 ) and also to the dishes through holes on spray arm ( 2 );

the spray arrangement wherein:

at least one holder bearing ( 1 a ) which is located above the opening, forms an arch shape above the opening and guides said movement of the spray arm ( 2 ), wherein the spray arm ( 2 ) is movably fitted at the space between the holder bearing ( 1 a ) and the opening;

at least one liquid distribution member ( 5 ) which can rotate around said axis during the forward-backward movement of the spray arm ( 2 ) and has a closed chamber shape in connection with the liquid inlet ( 1 f ) from a side thereof, wherein the cleaning liquid from the liquid inlet ( 1 f ) is collected in the liquid distribution member ( 5 ) and distributed to the spray arm ( 2 ); and

at least one delivery line ( 6 ) which has a flexible form, is in connection with the passage opening from one side and connected to the liquid distribution member ( 5 ) from another side such that the delivery line ( 6 ), in the closed position of the spray arm ( 2 ), is at an opposite side of the liquid distribution member ( 5 ) facing the passage opening, wherein the cleaning liquid received from the liquid inlet ( 1 f ) and reaching the liquid distribution member ( 5 ) is passed through the delivery line ( 6 ) and transferred to the spray arm ( 2 ).

2. A spray arrangement according to claim 1 , wherein the movement mechanism is located in the main body ( 1 ).

3. A spray arrangement according to claim 1 , wherein the delivery line ( 6 ) is a hose.

4. A spray arrangement according to claim 1 , wherein the spray arrangement comprises at least one cover ( 3 ) which is located between the holder bearings ( 1 a ) and covers the main body ( 1 ) to form a closed chamber structure with the main body ( 1 ).

5. A spray arrangement according to claim 1 , wherein the spray arrangement comprises at least one movement bearing ( 4 ) which is suitable for fixing to a surface in the cleaning compartment that is immobile during the operation of the dishwasher, wherein the movement bearing ( 4 ) is connected to the liquid inlet ( 1 f ) via at least one connection slot ( 4 a ) in such a way as to allow rotational movement of the main body ( 1 ), thereby bearing the rotational movement of the main body ( 1 ), wherein a first side of the connection slot ( 4 a ) connected to the liquid inlet ( 1 f ) and a second side opposite to said first side are open, and the second side is connected to a liquid source.

6. A spray arrangement according to claim 1 , wherein the spray arm ( 2 ) comprises:

at least one spray member ( 2 b ) which comprises at least a first chamber (b 1 ) which is a hollow structure and on which the angled hole ( 2 a ) is provided, wherein a first side of the first chamber (b 1 ) is closed and a second side opposite to the first side is open, and at least a first connection section (b 2 ) which is located at the second side of the first chamber (b 1 ); and

at least one movement member ( 2 c ) which is connected from one side to the spray member ( 2 b ) and from an opposite side to the movement mechanism and the delivery line ( 6 ), the movement member ( 2 c ) comprising: at least a second chamber (c 1 ) which is a hollow structure and a first side of which is open; at least a second connection section which is located at the first side of the second chamber (c 1 ), and connected to the first connection section (b 2 ) so that the movement member ( 2 c ) is attached to the spray member ( 2 b ); at least one delivery channel (c 2 ) which is located at a second side of the second chamber (c 1 ) opposite to the first side thereof and forms the passage opening, wherein the delivery line ( 6 ) is connected to the delivery channel (c 2 ); and

at least a third connection section (c 3 ) which is located at the second side of the second chamber (c 1 ) and provides connection to the movement mechanism.

7. A spray arrangement according to claim 6 , wherein the spray arrangement comprises at least one connection body (c 5 ) located at the bottom part of the delivery channel (c 2 ), connected from one end to the second side of the second chamber (c 1 ) and extending towards the center of the main body ( 1 ) from another end, wherein the third connection section (c 3 ) is located at a portion of the connection body (c 5 ) extending towards the center of the main body ( 1 ); at least one guide member (c 4 ) located at a bottom surface of the connection body (c 5 ) and in the form of a protrusion extending from said bottom surface towards the main body ( 1 ); and at least one movement channel ( 1 e ) in which the guide member (c 4 ) is fitted and which is located at the base of the main body ( 1 ) and extends in the movement direction of the spray arm ( 2 ).

8. A spray arrangement according to claim 1 , wherein the movement mechanism comprises:

at least one fixed gear ( 8 ) which is provided in the main body ( 1 ) such that the fixed gear ( 8 ) coincides with rotational axis of the main body ( 1 ) and does not rotate with the rotational movement of the main body ( 1 ), the fixed gear ( 8 ) being located in at least a first housing ( 1 b ) with a circular section, which is provided at the main body ( 1 );

at least a first transfer member ( 9 ) which provides connection between the spray arm ( 2 ) and the fixed gear ( 8 ) and thereby transfers the rotational movement of the main body ( 1 ) to the spray arm ( 2 ); and

at least a second transfer member ( 10 ) which is rotatably connected from one side to the fourth connection section ( 9 c ) and rotatably connected from another side to the spray arm ( 2 ).

9. A spray arrangement according to claim 8 , wherein the first transfer member ( 9 ) comprises:

at least a first transfer body ( 9 a );

at least one movable gear ( 9 b ) which is located at a bottom surface of a first side of the first transfer body ( 9 a ) and positioned at the main body ( 1 ) such that the movable gear ( 9 b ) is connected to a part of the fixed gear ( 8 ) closest to the spray arm ( 2 ) and rotates together with the main body ( 1 ) around its own axis to move around the fixed gear ( 8 ), wherein the movable gear ( 9 b ) is provided in at least a second housing ( 1 c ) which is located at the main body ( 1 ) and is connected from one side to the first housing ( 1 b ); and

at least a fourth connection section ( 9 c ) which is located on a second side of the first transfer body ( 9 a ) opposite to the first side thereof, and provides connection with the spray arm ( 2 ).

10. A spray arrangement according to claim 9 , wherein the spray arrangement comprises at least one connection member ( 1 d ) which is in the form of a lug extending upwards from the base of the main body ( 1 ), located at the base of the main body ( 1 ), and positioned in a second housing ( 1 c ) which is located at the main body ( 9 ) and in which the movable gear ( 9 b ) is provided; and that the first transfer member ( 9 ) comprises at least a sixth connection section ( 9 d ) which is located at the portion where the movable gear ( 9 b ) is provided and is in the form of a through hole comprising the rotational axis of the movable gear ( 9 b ), wherein the connection member ( 1 d ) is placed in the sixth connection section ( 9 d ) and forms rotational axis of the movable gear ( 9 b ).

11. A spray arrangement according to claim 9 , wherein four teeth, among the teeth provided on the fixed gear ( 8 ), with an angle of 45° in between are wider than the other teeth, and distance between two successive teeth on the movable gear ( 9 b ) is greater than distance between the other teeth such that wider teeth on the fixed gear ( 8 ) can fit.

12. A spray arrangement according to claim 8 , wherein the second transfer member ( 10 ) comprises at least a second transfer body ( 10 a ) in the form of a rod, and at least two fifth connection sections ( 10 b ) which are located at the lower surface on opposite sides of the longitudinal axis of the second transfer body ( 10 a ), and that the second transfer member ( 10 ) is connected to the first transfer member ( 9 ) and the spray arm ( 2 ) so as to rotate around axes passing through the fifth connection sections ( 10 b ).

13. A spray arrangement according to claim 8 , wherein:

the fixed gear ( 8 ) comprises at least one hole located substantially at the center thereof; at least one inlet portion ( 8 a ) which is a hollow structure, connected to an upper part of the hole and connected from another side to the liquid distribution member ( 5 ) such that the liquid distribution member ( 5 ) can rotate around the axis around which the main body ( 1 ) rotates;

the spray arrangement comprises at least one movement bearing ( 4 ) which is suitable for fixing to a surface in the cleaning compartment that is immobile during the operation of the dishwasher, wherein the movement bearing ( 4 ) is connected to the liquid inlet ( 1 f ) via at least one connection slot ( 4 a ) in such a way as to allow rotational movement of the main body ( 1 ), thereby bearing the rotational movement of the main body ( 1 ), wherein a plurality of lug slots ( 4 b ) are provided in the connection slot ( 4 a ); and

the fixed gear ( 8 ) also comprises at least one fixing portion ( 8 b ) which is a hollow structure and is connected to a bottom part of the hole thereof, fitted at the connection slot ( 4 a ), has a plurality of lugs attached to the lug slots ( 4 b ), fixes the fixed gear ( 8 ) by the lugs settling in the lug slots ( 4 b ) and thus prevents the fixed gear ( 8 ) from rotating with the rotation of the main body ( 1 ).

14. A spray arrangement according to claim 13 , wherein distance between two successive lug slots ( 4 b ) is greater than distance between the other successive lug slots ( 4 b ) and distance between two successive lugs located in the fixing portion ( 8 b ) is greater than distance between the other successive lugs.

15. A spray arrangement according to claim 1 , wherein the spray arrangement comprises at least one intermediate cover ( 7 ) which is located at the main body ( 1 ) in the bottom part of the delivery line ( 6 ), wherein the liquid distribution member ( 5 ) is located at the intermediate cover ( 7 ).