Apparatus and method especially for holding a separate piece to be attached to a unit load

Abstract

Method for holding in its place a separate piece placed against a side surface of a basic piece, wherein an air jet is directed to the separate piece and under this influence the separate piece is pressed against the end. Means for producing the air jets are placed for example in a stationary position or the basic piece is conveyed by a transfer carriage to which the means for producing the air jets are placed and arranged to hold at least one separate piece in its place. Alternatively, the basic piece is transferred by means of a conveyor or a transfer carriage and the means for producing the air jets are placed along this route in a stationary position and are arranged to hold in its place at least one separate piece that moves along the basic piece.

1 . A method for holding in its place a separate piece placed against a side surface of a basic piece, wherein an air jet is directed to the separate piece and under this influence the separate piece is pressed against the side surface of the basic piece, and remains in its place, and wherein said basic piece is at the same time conveyed by an automatic transfer carriage to which the means for producing the air jets are placed.  
     
     
         2 . The method according to  claim 1 , wherein said separate piece is also held by means of said same means during stretch film wrapping of the basic piece, where it is transported by means of said carriage, and said basic piece is at the same time rotated around its horizontal longitudinal axis.  
     
     
         3 . The method according to  claim 1 , wherein said basic piece is a paper roll and said separate piece is an end protector of the paper roll or a label to be attached to the paper roll.  
     
     
         4 . The method according to  claim 2 , wherein said basic piece is a paper roll and said separate piece is an end protector of the paper roll or a label to be attached to the paper roll.  
     
     
         5 . A method for holding in its place a separate piece placed against a side surface of a basic piece, wherein an air jet is directed to the separate piece and under this influence the separate piece is pressed against the side surface of the basic piece, and remains in its place, and wherein said basic piece is at the same time transferred by means of a conveyor or an automatic transfer carriage that is followed by another conveyor or automatic transfer carriage, in which the means for producing air jets are placed.  
     
     
         6 . The method according to  claim 5 , wherein said separate piece is held by means of said means also during stretch film wrapping of the basic piece, where it is transported by means of said conveyor or said carriage, and said basic piece is at the same time rotated around its horizontal longitudinal axis.  
     
     
         7 . The method according to  claim 5 , wherein said basic piece is conveyed in a direction parallel to its longitudinal direction or in a direction transverse to its longitudinal direction.  
     
     
         8 . The method according to  claim 5 , wherein said basic piece is a paper roll and said separate piece is an end protector of the paper roll or a label to be attached to the paper roll.  
     
     
         9 . A method for holding in its place a separate piece placed against a side surface of a basic piece, wherein an air jet is directed to the separate piece and under this influence the separate piece is pressed against the side surface of the basic piece and remains in its place, and wherein said basic piece is at the same time conveyed by means of a conveyor or transfer carriage along whose path the means for producing the air jets are placed in a stationary position and arranged to hold said separate piece in its place, said separate piece moving along with the basic piece.  
     
     
         10 . The method according to  claim 9 , wherein several air jets are placed along said route within a distance from each other, wherein they are directed to opposite directions in relation to each other in such a manner that one said separate piece can be held against one side surface of the basic piece or two said separate pieces can be held against the opposite side surfaces of the basic piece.  
     
     
         11 . The method according to  claim 9 , wherein the first air jets directed to the same direction are all placed on substantially the same first line that is substantially parallel to the longitudinal direction as well as the travel direction of said basic piece in such a manner that said side surface is located transversely in relation to said longitudinal direction and travels either in front of said basic piece or after the same, and wherein the second air jets directed to the opposite direction are all placed on the same second line that is located within a distance from the first line, wherein said air jets hold one separate piece in its place, irrespective of the fact whether said separate piece is located in the front of or behind said basic piece.  
     
     
         12 . The method according to  claim 9 , wherein said separate piece is placed manually or automatically to a side surface of the basic piece, said separate piece being equal or smaller in size than said side surface.  
     
     
         13 . The method according to  claim 10 , wherein said separate piece is placed manually or automatically to a side surface of the basic piece, said separate piece being equal or smaller in size than said side surface.  
     
     
         14 . The method according to  claim 11 , wherein said air jets are directed in such a manner that said basic piece during its movement at the same time covers the first air jet, thus preventing the access of the same to said side surface that moves towards the second air jet, thereby allowing a less obstructed access of the second air jet to said side surface.  
     
     
         15 . The method according to  claim 11 , wherein said air jets are directed in such a manner that said basic piece during its movement at the same time covers the second air jet, thus preventing the access of the same to said side surface that moves away from the first air jet, thereby allowing a less obstructed access of the second air jet to said side surface.  
     
     
         16 . The method according to  claim 9 , wherein said air jets are used that are directed obliquely towards said side surface.  
     
     
         17 . The method according to  claim 10 , wherein said air jets are used that are directed obliquely towards said side surface.  
     
     
         18 . The method according to  claim 11 , wherein said air jets are used that are directed obliquely towards said side surface.  
     
     
         19 . The method according to  claim 9 , wherein the basic piece is a unit load composed especially of a cylindrical roll made of a continuous web, that is suitably made of paper material.  
     
     
         20 . The method according to  claim 9 , wherein said basic piece is a paper roll and said separate piece is an end protector of the paper roll or a label to be attached to the paper roll.