JP2010094355A - Floor cleaning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor cleaning apparatus which can uniformly and certainly clean or wash a floor. <P>SOLUTION: The floor cleaning apparatus 1 includes a lower part traveling body 2, which includes a motor part 5, a drive pulley 35 which rotates by the driving force of the pivot 30a of the motor part 2, five driven pulleys 38 which rotate following this drive pulley 35, and five pads 7, which are attached to each of the driven pulleys 38 through a pad receiver 8 and rotate together. The floor cleaning apparatus 1 performs cleaning while contacting each of the pads 7 with the floor. Further, a discoid hollow plate 33, which can autorotate around the pivot 30a, is formed in the lower part traveling body 2, and each of the driven pulleys 38 is arranged on the same circle centering around the pivot 30a in this hollow plate 33, and an endless belt 40 is wound round the outer peripheral face of each of the driven pulleys 38 and the drive pulley 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a floor cleaning device suitable for cleaning and cleaning a floor surface.

  Generally, as a floor cleaning device that cleans or cleans the floor surface of a building or the like, a manually-movable floor cleaning device called a floor polisher is used. This type of floor cleaning apparatus has a lower traveling body, and the lower traveling body is attached to an electric motor, a driving pulley that rotates by a driving force of a rotating shaft of the electric motor, and a rotating pulley that follows the driving pulley. A plurality of driven pulleys. The plurality of driven pulleys have pads attached thereto, and the floor surface is cleaned or washed by sliding the pads while rotating the pads together with the driven pulleys by the driving force of the rotating shaft of the electric motor. .

As a conventional example of such a floor cleaning device, five driven pulleys are rotatably supported on a square base fixed to the lower traveling body, and the other four are centered around one of these driven pulleys. There is known a floor cleaning device in which four wheels are mounted on the periphery at equiangular intervals and movable in any direction of front, rear, left, and right (see, for example, Patent Document 1).
Japanese Patent No. 3665486

  However, in the conventional floor cleaning apparatus disclosed in Patent Document 1, a plurality of driven pulleys are pivotally supported on a square base fixed to the lower traveling body, and are rotated so that the driven pulleys do not contact each other. Since each driven pulley is provided with a gap between the driven pulleys, if the pads attached to the driven pulleys are slid in any direction while rotating, the dust on the floor or the cleaning liquid is removed from each pad. It enters the gap that occurs between them. As a result, the floor surface dust or the like is lost, and the floor surface is cleaned or cleaned. In particular, when each pad is slid in a direction in which three driven pulleys are aligned, the pads do not slide on the floor surface between the center driven pulley and the left and right driven pulleys in this linear direction. It is easy to remove dust on the floor surface, and stripes due to cleaning or washing of the floor surface appear more prominently. Thus, the above floor cleaning apparatus has a problem that the floor surface cannot be cleaned or washed uniformly and reliably.

  The present invention has been made in view of such a situation of the prior art, and an object of the present invention is to provide a floor cleaning device capable of cleaning or cleaning a floor surface uniformly and reliably.

  In order to achieve the above object, a floor cleaning apparatus according to the present invention includes a lower traveling body having an electric motor, a driving pulley that is rotated by a driving force of a rotating shaft of the electric motor, and a plurality that rotates following the driving pulley. And a plurality of pads that are attached to the driven pulleys and rotate together with the driven pulleys, and the pads are brought into contact with the floor surface to clean the floor traveling device around the rotation axis. A disk-shaped plate capable of rotating is provided, and the driven pulleys are arranged on the same circle around the rotation axis, and endless belts are provided on the outer peripheral surface of the driven pulley and the driving pulley. It is characterized by being wound.

  In the floor cleaning device configured as described above, each driven pulley is arranged on a rotatable plate on the same circle with the rotation axis as a center, and a plurality of pads rotating in the coaxial direction together with each driven pulley following the drive pulley are provided. By bringing the plate into sliding contact with the floor surface, the plate receives a reaction force from the rotation of each pad from the floor surface. Therefore, the plate rotates in the direction opposite to the rotation of each pad, and each driven pulley also rotates on the same circle around the rotation axis. It can be made to slide evenly. As a result, it is possible to prevent the dust on the floor surface from being dropped, and to prevent the floor surface from being cleaned or washed.

  In the floor cleaning apparatus according to the present invention, a removable weight is provided around the electric motor. If comprised in this way, since the weight of a lower traveling body can be changed freely, the resistance with respect to the floor surface of each pad can be increased / decreased freely. Therefore, when a weight is provided around the electric motor to increase the weight of the lower traveling body, it is possible to surely make sliding contact with an uneven portion on the floor surface, and it is possible to increase cleaning power or cleaning power. .

  In the floor cleaning apparatus of the present invention, a plate to which a plurality of driven pulleys are attached receives a reaction force from the rotation of each pad from the floor surface and rotates in a direction opposite to the rotation of each pad, so that each pad rotates. Revolving on the same circle with the rotation axis as the center, each pad can be slid equally on the floor surface in any movement direction. As a result, it is possible to prevent the floor surface from being overwhelmed with dust and the like, and it is possible to prevent the floor surface from being striped or cleaned, and to clean or clean the floor surface uniformly and reliably. it can.

  FIG. 1 is a side view showing the configuration of a floor cleaning apparatus according to an embodiment of the present invention, and FIG. 2 is a rear view showing the configuration of the floor cleaning apparatus. 3 is an exploded view showing the configuration of the motor unit of the floor cleaning device, FIG. 4 is a longitudinal sectional view showing the configuration of the cleaning unit of the floor cleaning device, and FIG. 5 is a cross section showing the configuration of the cleaning unit of the floor cleaning device. FIG. 6 and FIG. 6 are side views showing the usage state of the floor cleaning apparatus.

  As shown in FIGS. 1 and 2, a floor cleaning apparatus 1 according to an embodiment of the present invention includes a lower traveling body 2 at a lower part of a main body and an upper operation body 3 at an upper part of the main body. The cleaning unit 4 cleans or cleans the floor surface by sliding and has a motor unit 5 attached to the central upper surface of the cleaning unit 4. Further, the cleaning unit 4 has a frame 6, and five pads 7 which can be rotated below the frame 6 are mounted via the pad receivers 8. The upper part of the cleaning unit 4 is connected to one end of a pair of support bars 9 arranged in parallel in the horizontal direction, and a rotatable horizontal bar 10 that connects the left and right is connected to the other end of the pair of support bars 9. Has been. Further, a pair of wheels 11 a are provided on both outer sides via an axle 11 attached to the lower end of the other end of the pair of support bars 9.

  The upper operation body 3 includes an arm 12 having a lower end fixed to the horizontal bar 10 by welding, an operation handle 13 provided at the upper end of the arm 12, and a tank cradle 14 installed at the center of the arm 12. And a tank 15 disposed on the upper surface of the tank cradle 14 and containing a cleaning liquid. The tank 15 is fixedly supported by the arm 12, and the nozzle 16 attached to the tank cradle 14 and the cleaning unit 4 are connected by a hose 17.

  On the other hand, the operation handle 13 includes a first handle 18 attached to the upper end of the arm 12, a connecting rod 19 connected to the first handle 18 and extending upward, and a second handle attached to the upper end of the connecting rod 19. A handle 20, a screw 21 and a butterfly plate 22 provided at the lower end of the connecting rod 19, and a cleaning handle 23 that is attached to the left side of the first handle 18 and opens the nozzle 16 by gripping. When the screw 21 is removed, the connecting rod 19 can be bent 90 degrees forward by the butterfly plate 22.

  As shown in FIG. 3, a cylindrical connection receiver 25 having a spline formed on the inner peripheral surface is disposed at the center of the frame 6, and the connection receiver 25 is sandwiched between the upper surface of the frame 6. A pair of screws 28 are erected. A rubber skirt 29 is attached to the lower part of the frame 6 in order to prevent scattering of cleaning liquid and dust. On the other hand, the motor unit 5 has a motor main body 30 as an electric motor and a detachable weight 31 (for example, the weight of the weight 31 is 10 kg) that has a cylindrical shape at the center and is engaged with a convex portion of the motor main body 30. To be). The motor body 30 includes a rotating shaft 30a protruding from the center of the lower surface, a connecting body 24 attached to the lower end of the rotating shaft 30a and formed with a spline, and a pair of through holes 26 through which a pair of screws 28 are respectively inserted. It has. Similarly, the weight 31 includes a pair of through holes 27 through which the pair of screws 28 are inserted.

  And the lower traveling body 2 is comprised by integrating the cleaning part 4, the motor main body 30, and the weight 31 by stacking and combining. That is, the connecting body 24 of the motor main body 30 is splined to the connecting receiver 25 of the cleaning unit 4, and at the same time, the screws 28 are inserted into the pair of through holes 26, and the weight 31 engages with the convex portion of the motor main body 30 from above. At the same time, the screws 28 are respectively inserted into the pair of through holes 27 and fastened by the nuts 32.

  As shown in FIGS. 4 and 5, a circular hollow plate 33 is rotatably attached to the inside of the frame 6 of the cleaning unit 4 via a bearing 34, and a drive pulley 35 is attached to the lower end of the connection receiver 25. Are provided integrally. The drive pulley 35 is connected to the rotating shaft 30a of the motor main body 30 by the spline connection between the connecting body 24 and the connecting receiver 25, and can smoothly rotate via the bearing 36 as the motor main body 30 rotates. It has become. Further, on the inner upper surface of the hollow plate 33, one ends of five rotating shafts 37 are rotatably mounted on the same circle centering on the driving pulley 35 via bearings (not shown). A pad 7 is mounted below the hollow plate 33 via a pad receiver 8 at each of the other ends. The driven pulleys 38 are fixed to the rotation shaft 37 inside the hollow plate 33, and the endless belt 40 is wound around the outer peripheral surface of the driven pulley 38 and the drive pulley 35. In addition, two tension pulleys 39 are provided between the driven pulleys 38 to urge the endless belt 40 inward, thereby preventing the endless belt 40 from slackening.

  Next, operation | movement of the floor cleaning apparatus 1 which concerns on the embodiment of this invention is demonstrated, using FIGS.

  In the floor cleaning apparatus 1 described above, first, when the power is turned on, the motor main body 30 is driven to rotate the connecting body 24 in one direction, for example, the P direction in FIG. The pulley 35 rotates in the P direction. As described above, the endless belt 40 that transmits the rotation of the drive pulley 35 to each driven pulley 38 is wound around the outer peripheral surface of the five driven pulleys 38 and the drive pulley 35. As the endless belt 40 moves in the R direction along with the rotation in the direction, each driven pulley 38 rotates in the Q direction opposite to the P direction. As a result, the five pads 7 attached to each driven pulley 38 via the rotary shaft 37 and the pad receiver 8 also rotate in the Q direction.

  When the pads 7 rotating in the Q direction are brought into sliding contact with the floor surface, the hollow plate 33 receives a reaction force due to the rotation of the pads 7 from the floor surface. Therefore, the hollow plate 33 rotates in the S direction opposite to the rotation of each pad 7 in the Q direction, and accordingly, each pad 7 also rotates in the S direction on the same circle around the rotation shaft 30a.

  Next, after the floor cleaning apparatus 1 is operated, as shown in FIG. 6, the user tilts the arm 12, holds the second handle 20 with the right hand, and is attached to the first handle 18 with the left hand. An appropriate amount of the cleaning solution is dropped by grasping the handle 23. Then, the left hand is squeezed to the second handle 20, and each pad 7 is slid on the floor surface for cleaning or washing.

  As described above, the second handle 20 is obtained by revolving the pad 7 around the rotation axis 30a in the S direction while rotating the pad 7 in the Q direction and sliding or sliding on the floor surface for cleaning or washing. Since the floor surface can be evenly cleaned or washed no matter which direction the lower traveling body 2 is moved by operating the, the floor surface dust can be prevented from being missed and the floor surface can be cleaned. Alternatively, it is possible to prevent the cleaning from being striped. Thereby, a floor surface can be cleaned or washed uniformly and reliably.

  Moreover, in this floor cleaning apparatus 1, since the motor part 5 includes the detachable weight 31, the weight of the lower traveling body 2 can be freely changed, and the drag of each pad 7 against the floor surface can be freely set. It can be increased or decreased. Therefore, for example, when the floor surface is uneven or when dust or the like is strongly fixed to the floor surface and cannot be removed, the weight 31 can be changed to a weight 31 heavier than 10 kg so that the floor surface is uneven. It can be surely slidably contacted, and dust and the like strongly adhered to the floor surface can be removed. Thereby, the cleaning power or the cleaning power of the floor cleaning device 1 can be further increased.

  In addition, in the floor cleaning apparatus 1 which concerns on the said embodiment example of this invention, since the five pads 7 are attached with respect to the hollow plate 33, a floor surface is cleaned more evenly than the case where it is 2-4 pads 7. Alternatively, it can be washed. However, if there are two or more pads 7, the number may not be five.

It is a side view which shows the structure of the floor cleaning apparatus which concerns on the example of embodiment of this invention. It is a rear view which shows the structure of this floor cleaning apparatus. It is an exploded view which shows the structure of the motor part of this floor cleaning apparatus. It is a longitudinal cross-sectional view which shows the structure of the cleaning part of this floor cleaning apparatus. It is a cross-sectional view which shows the structure of the cleaning part of this floor cleaning apparatus. It is a side view which shows the use condition of this floor cleaning apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor cleaning apparatus 2 Lower traveling body 3 Upper operation body 4 Cleaning part 5 Motor part 6 Frame 7 Pad 8 Pad receiving 9 Support bar 12 Arm 13 Operation handle 15 Tank 18 First handle 19 Connection rod 20 Second handle 24 Connection body 25 Connection receiver 26, 27 Through hole 28 Screw 30 Motor body 30a, 37 Rotating shaft 31 Weight 32 Nut 33 Hollow plate 34, 36 Bearing 35 Drive pulley 38 Driven pulley 40 Endless belt

Claims (2)

A lower traveling body having an electric motor, a driving pulley that rotates by a driving force of a rotating shaft of the electric motor, a plurality of driven pulleys that rotate following the driving pulley, and a plurality that are attached to the driven pulleys and rotate together. A floor cleaning device that cleans the pads by bringing them into contact with the floor surface,
The lower traveling body is provided with a disk-like plate that can rotate around the rotation axis, and the driven pulleys are arranged on the plate on the same circle with the rotation axis as a center. A floor cleaning apparatus, wherein an endless belt is wound around a surface and the driving pulley.   The floor cleaning apparatus according to claim 1, wherein a removable weight is provided around the electric motor.

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