Title of Invention

ELECTRICAL FLOOR CLEANING MACHINE

Abstract

An automatic floor cleaning machine which can be used for scrubbing or for mopping or as a machine which carries out both the activity simultaneously. The components of the machine are mounted on a frame made of aluminum angles and consist of A single phase induction motor coupled by a belt and pulley arrangement to a crank shaft carrying two cranks spaced 180 degree apart and carrying two connecting rods the other ends of which are connected to two brush holder fixing units which are prevented from tilting by four bearings resting against a smooth surface on the top of the frame. The travel of the brush holder fixing units is restricted to a straight line by a guide rod fixed on two supports on the frame. When the machine is switched "ON" brushes come tougher and move apart along the same line thus wiping on the floor repeatedly. Electric supply to the machine is effected through a flexible cable carried through a hollow handle which carries a touch switch for controlling an "ON-OFF" contactor. The status of machine is indicated by LEDs. Water for cleaning is can be spayed manually or by a tank fixed on the frame having nozzles. A brush cleaning tray having two inlets and two outlets for entry and overflow of water carrying a stainless steel grill welded at both ends also form part of the invention For cleaning the brushes the machine is placed on the above tray so that the brushes portion rests on the grill. Fresh water is let in through inlet holes of the tray and the machine is switched "ON". The brushes will wipe over the grill and the dirt get removed from the brushes and the dirty water will flow out through the outlets. The machine can then be used for further cleaning.

Full Text

This invention relates to floor cleaning Floor cleaning was carried out in earlier days by squatting on the floor and rubbing away dirt with a wet cloth. As this was found to be very tiresome, mop consisting of a rod with coarse strings or cloth fastened to its end, became widely used. The main disadvantages of this method are i. Both hands have to be used as pressure has to be applied on the ground for proper cleaning. This causes considerable physical strain. ii. The mop has to be dipped in water before cleaning, and the dirt and water has to be squeezed out, every now and then, during the process of cleaning. Vacuum cleaners are used for cleaning floor, but they are not as effective on floors as on carpets as adhering dirt can not be removed by vacuum sucking Although various electrically operated floor cleaning devices are known, their performance is not quite satisfactory on account of reasons like. i. They do not permit cleaning under spaces of low heights such as coats, cabinets etc. ii. They are heavy and difficult to operate with one hand. iii. Because of the complexity involved in incorporating vacuum for sucking liquids after cleaning etc. they are difficult and expensive to maintain. My invention is an electrically operated scrubbing cum mopping machine which has none of the above drawbacks. The weight of the machine exerts pressure on the floor and it is not necessary to exert any additional pressure. The machine rests over the floor on two tyres at the back and two brushes at the front. The floor gets automatically cleaned due to the wiping action of the brushes when the machine is switched 'ON' and pushed along the floor. 'ON'-'OFF' switch is mounted on a handle with LED status indication and the cleaning operation can be easily carried out using one hand even under spaces of low height. It can be used for scrubbing or for mopping or as a combined scrubbing and mopping machine by fixing brushes having nylon bristles and brushes made with coarse cotton thread on the brush holders. The brushes can be easily fixed and removed from the brush holders by sliding. The machine consumes only 0.15 Kwh / hour. One form of invention consist of a single phase induction motor, the circular motion of which is transmitted by a belt and pulley arrangement to a crank shaft, having two cranks, spaced 180 degrees apart, carrying two connecting rods, the other ends of which are connected to two brush holder fixing units. A metallic guide shaft controls the motion of the brush holder fixing units so that they come together and move apart repeatedly along the same line thus carrying out wiping action when the motor is switched 'ON'. The frame work also carry a water tank, cone nozzles and hose connecting them . All the above components are mounted on a framework made of aluminum angles. The machine rests over the floor on two tyres at the back and two brushes fixed on the brush holder units at the front. Supply to the machine is effected using insulated cable run through a hollow handle which carries a touch switch to control an 'ON'-'OFF' contactor, and LED status indication. When the machine is switched cON' the water stored in tank mounted on the aluminum sprayed through the cone nozzles on the floor. The floor gets cleaned due to the wiping action of the brushes when it is pushed over the floor A steel or fiber glass brush cleaning tray with two inlets and two outlets for entry and overflow of water, holding a stainless steel grill consisting of 3mm steel rods welded at either end also form part of the invention. For cleaning the brushes the machine is placed on the brush cleaning tray such that the brush portion rests on the steel grill. Fresh water is let in through inlet holes of the tray. When the machine is switched cON' the brushes will wipe over the grill and the dirt will be removed and the dirty water will flow out through the outlets. The machine can then be used for further cleaning. When the brushes are cleaned repeatedly dirt will accumulate at the bottom of the tray and this has to be washed out after removing the grill. Other forms of inventions are i. Machine having one brush ii. Machine having two brushes at angle or at opposite sides of the crankshaft. iii. Machine having three brushes in parallel or at angles. iv. Machine having four brushes in parallel or at angles. Brief description of drawing Fig. 1 shows the cross section of the machine Fig.2 shows the brush cleaning tray and steel grill Fig.3 shows the brush made of coarse cotton thread for mopping. Fig.4 shows the brush having nylon bristles for scrubbing Fig.5 shows the water tank, connecting hose and nozzles. Fig.6 shows the cover, tyre, handle, front grill, assembled Details of Fig. 1 1. Hollow handle for pushing the machine along the floor. 2. Clamp for fixing tyre 3. Tyre. 4. Clamp for fixing motor. 5. Single phase induction motor. 6. Motor shaft. 7. Pulley of motor. 8 Main pulley fixing unit. 9. Main pulley. 10. Crankshaft. 11. Short connecting rod. 12. Long connecting rod. 13 Guide shaft supports 14. Guide shaft Tor brush holder fixing unit, (for to-and-fro motion ) 15. Brush holder fixing unit for short connecting rod (having short central pin) 16. Brush holder fixing unit for long connecting rod (having long central pin) 17. Bearing for preventing tilting of brush holder fixing unit (2 Nos. for each brush holder fixing unit) 18. Brush holders. 19. Brush with cotton thread. 20. Brass bushes 21. Main frame for fixing motor, main pulley, tyre clamps, brush guide, pushing handle etc. 22. Water tank. 23. Nozzles 24 'V' belt. Details of Fig.2 1. Brush cleaning tray. 2. Inlet holes. 3. Outlet holes. 4. Steel grill. Details of Fig.3 l.'C shaped base 2. Coarse cotton thread fixing plate. Details of Fig.4 1. 'C' shaped base. 2. Nylon bristles. Details of Fig.5 1. Water tank 2. Fixing clamp. 3. Electrically operated tap. 4. Connecting hose 5. Nozzles. Details of Fig.6 1. Brush Cover. 2. Motor cover. 3. Brush protection grill 4. Tyre. 5. Handle 6. Brushes 7. Flexible insulated cable. Detailed description (Ref. fig 1) The machine consists of a frame (21) made of aluminum angles with holes drilled so as to mount the clamp for motor (4), single phase induction motor (5), tyre fixing clamp (2), tyre shall for mounting tyres (3), main pulley (9), supports (13) of metallic guide shaft (14) for guiding the movement of brush holder fixing units (15,16) along the same line, water tank (22) and nozzles (23). The crank shaft (10) is fixed on the main pulley (9) and the two connecting rods (11,12) fixed on the crank shaft (10) go to the center pins of the brush holder fixing units (15,16). Brush holders (18) are fixed on the four corner pins of the brush holder fixing unit (15,16). Brushers (19) are inserted into the brush holders (18) by sliding the base of the brush into the ,C shaped holder. A CV belt (24) is provided for transmitting the rotation of the motor (5) to the crank shaft (10) The handle (1) is 'Y' shaped at the bottom and has 2 holes for the passage of tyre shafts. The supply to the machine is by insulated flexible cable drawn through the handle, and controlled by a relay actuated by a touch-switch located in the handle. The status of the machine is indicated by LEDs on the handle. There are two tyres connected by shafts fixed on the tyre fixing clamps. The bottom end of the handle is 'Y' shaped and has holes for the passage of the shafts. There arc two types of brushes i. Brushes made of coarse cotton thread for mopping.( coarse cotton thread can be easily replaced when its gets worn out) ii. Brushes having nylon bristles for scrubbing The machine rests on the two tyres and the two brushes When the machine is switched 'ON', using the touch switch on the handle, the motor is actuated. The rotary motion of the motor is transmitted to the crank shaft by a belt and pulley arrangement. This rotary motion is converted into to-and-fro or reciprocating motion of brush holder fixing units by two cranks, spaced 180 degrees apart, carrying two connecting rods of different lengths the other ends of which are connected to the brush holder fixing units guided by a metallic shaft restrict the motion so that they come together and move apart along the same line. Tilting of brush holder fixing units is prevented by four bearings resting against the top frame. For mopping coarse cotton thread brushes are used and for scrubbing nylon bristled brushes are used. One brush holder with coarse cotton thread and the other with nylon bristles can be used for better cleaning. Brushes are inserted into the brush holder by sliding the base of the brush into the 'C shaped holder. Before starting mopping water is to be sprinkled on the floor either manually or by fixing tank with nozzles on the frame of the machine . The machine is switched 'ON' and pushed along the floor. The brushes continuously wipe the floor (the wiping action of the brushes is such that they come together and move away repeatedly). The dirt get collected on the brush. When it is to be cleaned, the handle is lifted higher than the normal using angle. The handle then gets locked up by a gravity lock The machine cati then be freely pushed along the floor without the brushes touching the ground. The machine is placed on the brush cleaning tray such that the brush portion touches the steel grill. Fresh water is let in through inlet holes of the tray. When the machine is switched 'ON' the brushes will wipe over the grills and the dirt will be removed and the dirty water will flow out through the outlets. The machine can then be used for further cleaning. When the brushes are cleaned repeatedly the dirt will accumulate at the bottom of the tray and this has to be washed out after removing the grill. I claim 1). An electrically operated floor cleaning machine which can be used for scrubbing or for mopping or as a combination of the above two. comprising of A single phase induction motor coupled by a belt and pulley arrangement to a crank shaft, having two cranks spaced 180 degree apart, carrying two connecting rods of different lengths, the other ends of which are connected to two brush holder fixing units which are prevented form tilting by four bearings and guided by a guide shaft which restricts their motion so that they come together and move apart repeatedly along the same line thus wiping the floor when the machine is switched 'ON', A 'T' shaped frame fabricated out of aluminum angles for mounting the above arrangement, water tank, nozzles for spraying water, and the hollow handle carrying the insulated flexible supply cable, a touch switch controlling a switching contactor and LED status indication and two tyres for permitting easy movement of machine along the floor. Brush holder fixing unit having a central leg for fixing the connecting rod and four legs at the corners for fixing brush holder for fixing the brushes made of coarse cotton thread and nylon bristles. A steel or fiber glass brush cleaning tray with two inlets and two outlets for entry of water and overflow respectively, holding a stainless steel grill consisting of 3mm steel rods welded at either end. 2). An electrically operated floor cleaning machine as claimed in claim 1 but not having a water tank with nozzles for spraying water on the floor. 3). An electrically operated floor cleaning machine as claimed in claim 1 but having only one brush 4). An electrically operated floor cleaning machine as claimed in claim 1 but having two brushes at an angle. 5). An electrically operated floor cleaning machine as claimed in claim 1 but having two brushes at opposite sides of the crank shaft. 6). An electrically operated floor cleaning machine as claimed in claim 1 but having three brushes in parallel. 7). An electrically operated floor cleaning machine as claimed in claim 1 but having three brushes at an angle. 8). An electrically operated floor cleaning machine as claimed in claim 1 but having four brushes in parallel. 9). An electrically operated floor cleaning machine as claimed in claim I but having four brushes at an angle. 10) An electrically operated floor cleaning machine substantially as herein above described in specification with reference to the accompanying drawings.

Documents:

0871-che-2005-abstract.pdf

0871-che-2005-claims.pdf

0871-che-2005-description(complete).pdf

0871-che-2005-drawings.pdf

0871-che-2005-form 1.pdf

871-CHE-2005 AMENDED PAGES OF SPECIFICATION 27-05-2011.pdf

871-CHE-2005 AMENDED CLAIMS 27-05-2011.pdf

871-che-2005 form-1 27-05-2011.pdf

871-CHE-2005 AMENDED CLAIMS 21-11-2011.pdf

871-CHE-2005 AMENDED PAGES OF SPECIFICATION 21-11-2011.pdf

871-CHE-2005 CORRESPONDENCE OTHERS 21-11-2011.pdf

871-CHE-2005 EXAMINATION REPORT REPLY RECEIVED 27-05-2011.pdf

871-CHE-2005 FORM-1 21-11-2011.pdf

871-CHE-2005 FORM-13 21-11-2011.pdf

871-CHE-2005 CORRESPONDENCE PO.pdf

871-CHE-2005 FORM-18.pdf