Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Patent
1994-07-11
1996-07-09
Bagnell, David J.
Mining or in situ disintegration of hard material
Automatic control; signaling or indicating
Of hard material disintegrating machine
299 392, 299 396, 367 96, 404 845, E01C 23088, E01C 2312
Patent
active
055337902
DESCRIPTION:
BRIEF SUMMARY
This invention relates to machines which have cutting or milling drums or the like for taking up floor tiles from floor surfaces and for planing or levelling floor surfaces. Such machines will hereinafter be referred to as "floor milling machines", as distinct from concrete grinding machines which have a grinding wheel or other abrasive member for smoothing a concrete surface.
The present invention is particularly concerned with floor milling machines for use inside buildings, such as shopping centers and exhibition halls, where it is desirable to control dust and pollution emissions when old floor tiles are removed and broken up and/or when concrete or like floor surfaces within a building are levelled. Such dust and debris created by ripping up the floor tiles or by planing the concrete is a particular problem in shopping centers with food halls and other retail outlets where a high standard of hygiene is required.
It is therefore desirable to provide a machine which is able to remove floor tiles from a surface and/or to plane a floor surface without releasing or emitting large amounts of dust into the surrounding environment.
A further problem with levelling floors inside buildings is that concrete floors usually incorporate steel reinforcements and, when such a reinforced concrete floor is planed, at least a minimum thickness of concrete should preferably be left between the steel reinforcements and the finished surface of the concrete.
It is also desirable, therefore, to provide a tile removing or concrete levelling machine which can ensure that the finished surface of concrete is a required height above the level of steel reinforcements in the concrete.
It is further desirable to provide a milling machine which is capable of operating on a concrete floor or on a tiled surface with underlying concrete to produce a flat, level surface which can then be readily re-surfaced with a new layer of tiles or the like.
According to one aspect of the invention, there is provided a floor milling machine comprising a chassis structure supported by ground-engaging wheels, rotatable milling means mounted on the chassis structure for rotation about a generally horizontal axis and for engagement with a floor surface to remove material from the floor surface, storage means mounted on the chassis structure to receive material such as dust and debris removed from the floor surface as the milling means passes over and engages the floor surface and means to transfer the material removed from the floor surface from adjacent the milling means to the storage means.
Preferably, the milling means comprises a milling drum contained within a housing and a vacuum system is provided to evacuate dust and debris from the drum housing to the storage means which preferably comprises a removable waste hopper.
In a preferred embodiment, front, side and rear containment boards are provided around the base of the drum housing and a vacuum tube of the vacuum system is provided to suck up dust or debris which escapes from the drum housing under the rear board and transfer it to the storage means.
According to another aspect of the invention there is provided a floor milling machine comprising a chassis structure supported by ground-engaging wheels, rotatable milling means mounted on the chassis structure for rotation about a generally horizontal axis and for engagement with a floor surface to remove material from the surface, height adjustment means to adjust the level of the wheels relative to the milling means, and control means to control the adjustment means.
Preferably, the milling means is located in the vicinity of a pair of rear ground-engaging wheels and the level of each rear wheel is individually adjustable relative to the height of the chassis structure and to the milling means mounted thereon, so that the level and orientation of the milling means relative to the floor beneath the machine is adjustable.
The machine preferably includes detection means to sense information about the floor surface beneath the machine and/or to sens
REFERENCES:
patent: 3779661 (1973-12-01), Godbersen
patent: 4186968 (1980-02-01), Barton
patent: 4678236 (1987-07-01), Wirtgen
patent: 4723867 (1988-02-01), Wirtgen
patent: 4727686 (1988-03-01), Persson
patent: 4943119 (1990-07-01), Zarniko et al.
patent: 5022763 (1991-06-01), Vuagnat
patent: 5309407 (1994-05-01), Sehr et al.
Soviet Abstract SU-326329--Soviet Inventions Illustrated--Sep., 1972.
Bagnell David J.
Weiland Pamela
Weiland Raymond F.
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