A transport unit and a method for lifting such a transport unit

Abstract

A transport unit comprising a mineral wool plate package is disclosed. The mineral wool plate package has a bottom surface, and a two separate feet arranged at the bottom surface. Two separate feet support the mineral wool plate package for keeping mineral wool plates of the package at a distance from the ground when the transport unit is positioned on the ground. As such, two separate feet allow a fork of a fork-lift to be inserted between the feet for lifting up the transport unit. Each of the feet comprises a lower part, an upper part, and a step between the lower part and the upper part. The step provides a space for accommodating a lifting strap for lifting up the transport unit.

1 . A transport unit comprising:
 a mineral wool plate package with at least two mineral wool plates, the mineral wool plate package having a top surface, a bottom surface and two opposed side surfaces, the side surfaces extending in a width and a height of the mineral wool plate package, and   two separate feet positioned at a distance from each other, manufactured from an insulating material and arranged at the bottom surface, the feet forming ground supports adapted to carry and support the package when the transport unit is positioned on the ground, the feet in that position keeping the mineral wool plates at a distance from the ground such as to make it possible for a lifting device, such as a fork of a fork-lift, to be inserted between the feet to lift up the transport unit,   wherein   each foot comprises a lower part and an upper part, the lower part extending shorter towards the closer of the side surfaces such as to form a step between the lower part and the upper part, which step extends in the width direction of the mineral wool plate package to form a lifting strap space adapted to accommodate a respective lifting strap for lifting up the transport unit.   
     
     
         2 . A transport unit according to  claim 1 , wherein each part takes the form of one layer, the two layers of each foot being stacked upon each other, the two layers preferably being of substantially the same height. 
     
     
         3 . A transport unit according to  claim 2 , wherein each layer is in the form of a mineral wool plate, preferably parallelepiped-shaped, the two plates preferably being of mineral wool of same type and/or density. 
     
     
         4 . A transport unit according to  claim 1 , wherein an average density of mineral wool of the plates of the mineral wool plate package is in the range of 45 to 250 kg/m 3 , preferably 75 to 190 kg/m 3 , and a density of mineral wool of the feet is in the range of 60 to 250 kg/m 3 , preferably 100 to 190 kg/m 3 . 
     
     
         5 . A transport unit according to  claim 1 , wherein the lower of the two parts of each foot extents at least 50 mm, preferably at least 100 mm, shorter than the upper part towards the closer of the side surfaces. 
     
     
         6 . A transport unit according to  claim 1 , wherein the height of each foot is substantially equal to that of each of the mineral wool plates of the mineral wool plate package. 
     
     
         7 . A transport unit according to  claim 1 , wherein the distance between the feet is large enough to allow for a standard fork of a fork-lift to be inserted between the feet to abut the bottom surface of the mineral wool plate package, preferably the distance is at least 630 mm, more preferred at least 700 mm, most preferred at least 800 mm. 
     
     
         8 . A transport unit according to  claim 1 , wherein each step is formed with substantially right angles such as to form a lifting space in the form of a rectangular, inwards corner in which the lifting strap can be accommodated. 
     
     
         9 . A transport unit according to  claim 1 , wherein each step extends in the width direction of the mineral wool plate package substantially in parallel to the side surfaces. 
     
     
         10 . A transport unit according to  claim 1 , wherein the upper part of each foot is positioned at a distance from the closer of the side surfaces, said distance preferably being at least 50 mm, more preferred at least 100 mm, most preferred at least 200 mm. 
     
     
         11 . A transport unit according to  claim 1 , wherein the mineral wool plate package further comprises opposed front and back surfaces extending in a length and in the height of the mineral wool plate package preferably substantially at right angles to the side surfaces, the lower part extending shorter towards the front and back surfaces such as to form a step between the lower part and the upper part, which step extends in the length of the mineral wool plate package, preferably in parallel to the front and back surfaces, to form a lifting strap space adapted to accommodate a respective lifting strap for lifting up the transport unit. 
     
     
         12 . A transport unit according to  claim 1 , wherein the mineral wool plates of the mineral wool plate package are parallelepiped-shaped or rectangular cuboids stacked upon each other to form a substantially parallelepiped-shaped stack of mineral wool plates. 
     
     
         13 . A transport unit according to  claim 1 , wherein the mineral wool plate package comprises at least four, preferably at least six, more preferably at least eight, mineral wool plates of substantially equal size stacked upon each other such as to form substantially plane side surfaces extending in a width and a height of the mineral wool plate package as well as substantially plane front and back surfaces extending in a length and a height of the mineral wool plate package, the side surfaces extending at right angles to the front and back surfaces. 
     
     
         14 . A transport unit according to  claim 1 , wherein the plates of the mineral wool plate package and the feet are assembled using a wrapping foil wrapped around the mineral wool plates and the feet. 
     
     
         15 . A transport unit according to  claim 1 , wherein each plate of the mineral wool plate package comprises a layer of lamellar low-density mineral wool with fiber orientation mainly directed in an up-down direction, and a pressure distribution layer of high-density mineral wool, the layers being stacked upon each other and being attached to each other, preferably the pressure distribution layer is positioned upwards in the mineral wool plate package. 
     
     
         16 . A method for lifting a transport unit according to  claim 1 , the method comprising:
 providing two straps, each attached to a strap lifting device positioned above the transport unit,   guiding each strap to extend around a bottom of the transport unit, positioning each strap to be accommodated in a respective of the lifting strap spaces, and   lifting the transport unit in the straps by means of using the strap lifting device.