Table moulding for forming edges of concrete floor, has hook with telescopic arms and sliding weight for supporting it when being lifted by crane to floor above

摘要

#CMT# #/CMT# A fixed scaffolding (31) is secured to the outer parts of the upper flanges of the T-shaped frames used to form the moulding (15). The scaffolding comprises a safety fence (35) and a vertical edge shuttering used to form the vertical edge of the concrete floor (10-13) being cast. The weight and position of the scaffolding are chosen so that the centre of gravity for the moulding is located on a vertical axis next to the edge shuttering. The moulding is lifted by crane to the floor above using a table hook (16) which supports the shuttering for the floor when the moulding is being moved from one floor to the next. The hook has two telescopic arms (20, 21) on its bottom side and a single fixed arm (23) on its top side connected to a sliding weight (22) used to position the centre of gravity for the moulding on the vertical axis. Separate safety fences (6-9) are secured to the concrete floors on the inner side of the moulding. #CMT# : #/CMT# The moulding comprises a row of T-shaped frames which are fixed together in their length direction and which have adjustable length arms or shafts. A wooden beam (18) is placed underneath the top sides of the frames and this beam can be dropped into a U-shaped mounting shoe (19) secured to the top side of the concrete walls. #CMT#USE : #/CMT# For forming the edges of a concrete floor or slab. #CMT#ADVANTAGE : #/CMT# The moulding is prevented from swinging dangerously when being lifted vertically to the floor above. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a vertical section of a multi-storey building containing floors whose edges are formed using the table moulding. 6-9, 35 : Safety fences 10-13 : Concrete floors 15 : Moulding table 16 : Table hook 18 : Wooden beam 19 : Mounting shoe 20, 21 : Telescopic arms 22 : Sliding weight 23 : Fixed arm 31 : Scaffolding.