Abrading – Machine – Rotary tool
Patent
1995-03-22
1997-06-10
Kisliuk, Bruce M.
Abrading
Machine
Rotary tool
451350, B24B 700
Patent
active
056370326
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a mobile surfacing machine, preferably for the surfacing of stone floors, consisting of a frame which supports a drive motor with a motor shaft and a planet disc rotatably mounted in the frame, with three surfacing discs arranged on shafts rotatably mounted on the planet disc, which surfacing discs are operatively connected with a belt pulley arranged on the drive shaft of the motor via a drive belt running around first belt pulleys arranged on the aforementioned shafts.
In a previously disclosed surfacing machine of this kind, the planet disc has a speed which depends very largely on the degree of engagement of the surfacing discs with the floor to be surfaced. This poses considerable risks of uncontrolled movement in the surfacing machine, with an associated reduction in processing capacity and increased wear on the surfacing discs. These risks can certainly be minimized, although not entirely eliminated by an experienced surfacing machine operator.
SUMMARY OF THE INVENTION
The object of the present invention is to make available a surfacing machine of the kind referred to by way of introduction, which does not suffer from the aforementioned disadvantages, which can be handled by an operator with only brief experience of surfacing, and which has a greater processing capacity in comparison with previously disclosed surfacing machines.
This is achieved in accordance with the invention in that the shafts of the surfacing discs are so arranged, for the purpose of controlling the rotation of the planet disc, as to be in operative connection with the frame.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained in greater detail below with reference to the accompanying drawing, in which
FIG. 1 illustrates in schematic form a section through an illustrative embodiment of a surfacing machine in accordance with the invention.
FIGS. 2a and 2b show respectively plan views of what is in itself a conventional drive for the surfacing discs of the surfacing machine in accordance with FIG. 1 and an embodiment of an operative connection in accordance with the invention between the frame of the surfacing machine and the shafts of the surfacing discs.
FIG. 3 shows in a section, similar to that in FIG. 1, an alternative embodiment of the aforementioned operative connection.
According to one particular characteristic of the invention, the operative connection comprises, as an alternative to the combination of belt pulleys and belts, an internal cylindrical contact surface attached to the frame for wheels arranged on the shafts of the surfacing discs.
DESCCRIPTION OF THE EMBODIMENTS
In accordance with a preferred embodiment, the aforementioned operative connection comprises a belt pulley attached to the frame, second belt pulleys arranged on the shafts of the surfacing discs, and a second belt running around these and the belt pulley attached to the frame. The combination of belt pulleys and belts imparts a certain extensibility to the operative connection, which is positive in this context.
According to one particular characteristic of the invention, the operative connection comprises, as an alternative to the combination of belt pulleys and belts, an internal cylindrical contact surface attached to the frame for wheels arranged on the shafts of the surfacing discs.
The invention is explained in greater detail below with reference to the accompanying drawing, in which FIG. 1 illustrates in schematic form a section through an illustrative embodiment of a surfacing machine in accordance with the invention. FIGS. 2a and 2b show respectively plan views of what is in itself a conventional drive for the surfacing discs of the surfacing machine in accordance with FIG. 1 and an embodiment of an operative connection in accordance with the invention between the frame of the surfacing machine and the shafts of the surfacing discs. FIG. 3 shows in a section, similar to that in FIG. 1, an alternative embodiment of the aforementioned operative connection.
The ref
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Thysell H.ang.kan
Thysell Urban
Banks Derris H.
Kisliuk Bruce M.
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