A device, a system and a method for levelling a wall or similar vertical surface

Abstract

The present invention relates to a device a device, a system and a method for levelling a wall or similar vertical surface.The device (1) comprises a telescopic bar (2) and two feet (10) wherein each foot (10) is connected to the respective end of the telescopic bar (2). each foot (10) comprises a connection and guide mechanism (20) slidably connecting each foot (10) to respective the first end portion (5) and the second end portion (6) of the telescopic bar (2) so that the telescopic bar (2) is able to move in relation to the foot (10). Adjustment of the telescopic bar (2) allows to set a virtual plane adjacent to the wall or any other vertical surface to be processed or built. The device (1) allows fast and easy set up a work environment for constructing or building levelled surfaces.

1 . A device ( 1 ) for levelling a wall or similar vertical surface, wherein the device ( 1 ) comprises:
 a telescopic bar ( 2 ) formed of at least two tubes ( 3 ;  4 ), which can slide one inside another, and wherein the telescopic bar ( 2 ) comprises a first end portion ( 5 ) and a second end portion ( 6 ), wherein the telescopic bar ( 2 ) further comprises an adjusting and locking device ( 7 ) configured to adjust and to lock the tubes ( 3 :  4 ) of the telescopic bar ( 2 ) in a necessary length;   two feet ( 10 ), wherein each foot ( 10 ) comprises a connection and guide mechanism ( 20 ) slidably connecting each foot ( 10 ) to respective the first end portion ( 5 ) and the second end portion ( 6 ) of the telescopic bar ( 2 ) so that the telescopic bar ( 2 ) is able to move in relation to the foot ( 10 );   wherein the connection and guide mechanism ( 20 ) comprises:   at least two rollers ( 21 ) rotatably connected to the end portion ( 5 ;  6 ) of the telescopic bar ( 2 ) so that rollers ( 21 ) can roll along the foot ( 10 );
 a foot bar ( 22 ) fixed to the foot ( 10 ) and extending in a direction towards the telescopic bar ( 2 ) and into it, wherein the foot bar ( 22 ) comprises a threaded hole ( 23 ); 
 a threaded shaft ( 24 ) rotatably connected to the telescopic bar ( 2 ) and engaged with the threaded hole ( 23 ) of the foot bar ( 22 ) so that rotational movement of the threaded shaft ( 24 ) through the engagement of the threaded hole ( 23 ) of the foot bar ( 22 ) is transferred into linear motion of the telescopic bar ( 2 ) along the foot ( 10 ). 
   
     
     
         2 . The device ( 1 ) according to  claim 1 , wherein the adjusting and locking device ( 7 ) is a rack ( 71 ) and pinion ( 72 ) mechanism, wherein the rack ( 71 ) is rotatably installed in one tube ( 3 ;  4 ) of the telescopic bar ( 2 ) and the pinion ( 72 ) is fixed to another tube ( 3 ;  4 ) of the telescoping bar ( 2 ) so that a rotation of the rack ( 71 ) provides interrelated linear movement between the tubes ( 3 ; 4 ) of the telescopic bar ( 2 ). 
     
     
         3 . The device ( 1 ) according to  claim 1 , wherein the tube ( 3 ;  4 ) is square tube or rectangular tube. 
     
     
         4 . The device ( 1 ) according to  claim 1 , wherein one side of the tube ( 3 ;  4 ) is a guide surface ( 8 ) for guiding a wall levelling device ( 40 ). 
     
     
         5 . The device ( 1 ) according to  claim 4 , wherein an additional guide insert is attached to the guide surface ( 8 ) further facilitating a guidance of the wall levelling device ( 40 ). 
     
     
         6 . The device ( 1 ) according to  claim 1 , wherein one of the tubes ( 3 ;  4 ) has smaller cross section than another one ( 3 ;  4 ) so that one of the tubes ( 3 ;  4 ) can be inserted into another one ( 3 ;  4 ) providing telescopic function of the telescopic bar ( 2 ), and wherein the tube ( 3 ;  4 ) with the smaller cross section comprises an additional tube ( 9 ) at its end portion ( 5 ;  6 ). 
     
     
         7 . A system for levelling a wall or similar vertical surface, wherein the system comprises at least two devices ( 1 ) according to  claim 1 , wherein the devices ( 1 ) are arranged between the floor ( 30 ) and the ceiling ( 31 ) and in a such a vertical position that both guide surfaces ( 8 ) of both devices ( 1 ) are levelled vertically forming one vertical virtual plane. 
     
     
         8 . The system according to  claim 7 , wherein the system comprises a levelling tool ( 40 ) arranged between at least two devices ( 1 ) bearing on the guide surfaces ( 8 ) of the devices ( 1 ) so that levelling of the wall ( 32 ) may be performed by known building methods and satisfactory levelled wall ( 32 ) is obtained. 
     
     
         9 . A method for levelling a wall or similar vertical surface, wherein the method comprises the following steps:
 providing at least two devices ( 1 ) according to  claim 1 ;   arranging each device ( 1 ) in a proximity of a wall ( 32 ) to be levelled and between the floor ( 30 ) and the ceiling ( 31 );   levelling each device ( 1 ) vertically by adjustment of the telescopic bar ( 2 ) in relation to the respective feet ( 10 ) of the same device ( 1 ), wherein each device ( 1 ) is vertically levelled to each other so that vertical plane is formed between the guide surfaces ( 8 ) of the devices ( 1 ); and   levelling the wall ( 32 ) by operation of the levelling tool ( 40 ) along the wall ( 32 ) to be levelled, wherein the operation of the levelling tool ( 40 ) includes its sliding along the guide surfaces ( 8 ) of the devices ( 1 ).