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US 4,016,024 AGranted
Machine to arrange a noise insulation between two concrete elements
AssigneeNilcon Engineering AB
InventorLars-Erik Karlsson
Life of this patent
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AssigneeNilcon Engineering AB
InventorLars-Erik Karlsson
Estimating the term…
A machine of introducing sound-insulating members of a resilient material at predetermined places in concrete beams formed by a lower concrete element, preferably coffer-shaped, and an upper concrete element in the form of a slab. The machine comprises means to raise the upper element from the lower element so as to form therebetween a gap intended to receive the sound-insulating members, means to sense the vertical dimensions of said gap, means to cut off a piece of insulating material the vertical dimensions of which agree with those of the gap, means to apply an adhesive to said member, and means to position said member in the gap in the predetermined position. The invention ensures that the total thickness of concrete beams including such a sound-insulating layer is equal for all beams thus composed irrespective of the individual thickness of the discrete concrete elements. Within the principles of the present invention the machine may operate in a fully automated way or be designed as a manually operated machine.
In an improved machine comprising a bed supporting a lower element and an upper element resting thereon, a number of lifting means, abutment means cooperating with said lifting means, a supply of resilient sound-insulating material, said lifting means arranged to raise said upper element into contact with said abutment means so as to form between said upper and said lower elements a gap having a height of a predetermined value, said predetermind value exceeding the height of one layer of said sound-insulating resilient material to be introduced into said gap, the improvement comprising a stand vertically movable adjacent said elements, said stand including a setting device insertable into said gap to sense the height thereof and adapted to set said stand vertically in dependence on the height of said gap, a stop abutment, said stop abutment being associated with said setting device to position said stop abutment dependent upon the position of said setting device, a feed device for feeding from said supply a blank of said resilient material against said stop abutment, and a device for severing a piece from one end of said blank, the height of said piece becoming dependent on the height of said gap.
An improved machine for inserting a noise insulating member of resilient material, such as rubber, between a lower element, and an upper element comprising a stand, a support frame, said stand displaceable upwards and downwards on said support frame, said stand supporting a device, said device insertable from the side into a gap formed intermediate said upper and lower elements to sense the height of said gap and to set said stand in vertical position, a stop abutment provided on said stand so as to be vertically dependent on the height of said gap, a device for advancement of a rod-shaped blank of said sound-insulating member of resilient material against said stop abutment, and a device for severing a piece from one end of said rod blank, the height of said piece becoming dependent on the height of said gap, the improvement comprising said support frame supporting said setting device on said stand, a vertical cylinder on said support frame to hold said rod-shaped blank, the upper end of said cylinder positioned below said stop abutment of said stand, and an actuating piston arranged on said cylinder to force said rod-shaped blank up against said stop abutment.
Dependencies are inferred from the claim text.