Brushing – scrubbing – and general cleaning – Machines – Wiping
Patent
1991-11-25
1994-07-12
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Wiping
15 99, 15228, 15231, A47L 1129
Patent
active
053276094
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a mopsweeping apparatus for periodically or daily removal of dust and dirt particles from solid floor coverings, comprising a dust binding cloth which is moved on the floor to be cleaned.
There are several mopsweeping apparatuses known to remove dust from the floor and which contain disposable cloths. If after some time the cloth is saturated with dust and dirt it is exchanged for a clean impregnated cloth. Thus it is necessary in this stepwise system to exchange the cloths after fixed times which is time consuming. Furthermore, the moment of exchange is rather subjective. It is possible that the cloth is used too long a time and thus the desirable degree of cleaning is not obtained.
The invention is now directed to a continuous mopsweeping apparatus wherein the cloth without interaction from outside is continuously renewed and a more regular dust and dirt removal is obtained. In this way the numerous stopping moments needed in the old system to replace the cloth are abandoned.
Thus, the invention provides a mopsweeping apparatus comprising a dirt receiving cloth which is moved over the floor to be cleaned which is characterized in that it comprises a manually or a motor driven movable frame wherein a driven cooperating pair of rollers is present, on the one roller of which a supply of cloth is wound and on the other roller of which the cloth, when driven, is windable and between which a pressing means is provided, under which the cloth is retained during movement on the floor. The roller pair is preferably motor driven and preferably the take-up roller is driven. The driving preferably takes place so that the winding direction of the cloth rubs in the same direction as the movement of the total apparatus in contact with the floor. Preferably the winding velocity of the cloth is substantially lower than the movement velocity of the apparatus, which amounts to about a slow walking velocity of about 3-4 km/hour. A favourable value of the cloth velocity is generally in the range of 2-15 m/hour, with preference for values of 3-10 m/hour especially 3-6 m/hour. By choosing the winding direction and the movement direction in the same sense the backside of the apparatus always contains a clean cloth while the dirty part is present at the frontside. This is favourable for removal of dirt. Further the collection of coarser dirt particles (such as stamps, paper balls, plastic cups, etc.) which assembly at the frontside and could damage the cloth, is facilitated. For this purpose preferably at the frontside a catching means is arranged, for example a strip, bent in a U-form which does not touch the floor, possible with catching arms. During a stop the collected dirt particles can then be removed. The mopsweeping apparatus is transported on wheels, which preferably are adjustable in height, so that the pressure of the cloth on the floor is variable and can be adapted to the type of floor, the cloth used etc. The pressing means should permanently keep the cloth on the floor. For this purpose a stationary bottom plate comprising metal or plastic can be used under which the cloth is guided. However, the pressing means preferably is self-movable in the shape of one or more rolls, under which the cloth is moving and which rolls themselves are rotating. The plate or rolls are further coated with a resilient porous material which can take up the unevenesses in the floor. The pressing means also can exist of an assembly of rolls coated with resilient material which touch the floor.
In a preferable embodiment an endless belt is used which runs over two rollers, which are arranged in a frame and guide the cloth over the floor. In this embodiment more flexible action is ensured while also a favourable working surface of the cloth can be reached coupled with an acceptable breadth. The material from which the belt is composed and which further serves as coating material for the pressing plate or rolls must be inert and resistant to chemicals and oil. For this purpose various technical plastic materi
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Bierma Ulrk F.
Both Dirk M.
Reinhoud B.V.
Roberts Edward L.
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