JP6357029B2 - Electric running floor cleaning machine equipped with a floor cleaning system - Google Patents

Description

The present invention relates to an electric traveling type washing machine in which a floor surface cleaning device is mounted on an electric carriage that travels on the floor surface, and in particular, a plurality of floor surface cleaning tools are arranged radially in a horizontal direction below a rotary spindle that is suspended. In addition, the floor cleaning device configured to rotate (revolve) around the rotation main shaft while rotating the floor cleaning tool can be freely tilted in the traveling direction of the electric traveling cleaning machine. The present invention relates to an electric traveling washer that is suspended .

As shown in FIG. 7, the conventional floor cleaning machine includes a cleaning machine main body 100, front wheels (drive wheels) 101 and rear wheels (auxiliary wheels) 102 that are traveling mechanisms of the cleaning machine main body 100, and a floor surface. It is composed of one floor surface cleaning tool 103 that rotates while rotating, a squeegee 104 that sucks up the contaminated cleaning liquid after cleaning, a suction duct 105, and the like, and enables automatic travel and hand travel.
Inside the cleaning machine main body 100, there are a cleaning liquid tank 106 for storing the cleaning liquid, a contaminated cleaning liquid recovery tank 107 for recovering and storing the cleaned cleaning liquid, an electric motor 108 for traveling, a motor 109 for rotating the cleaning tool, a battery 110 and the like. A driving operation unit 111 is provided at the upper rear of the cleaning machine main body 100. When cleaning the floor surface, the cleaning liquid is dripped onto the floor surface from the central portion of the rotating cleaning tool 103, and the contaminated cleaning liquid after cleaning is cleaned by the squeegee 104, the suction duct 105, and the suction pump 112 in the lower rear part. Collected in 107. The cleaning tool 103 is lowered by the electric actuator 113 together with the cleaning tool rotating motor 109 when the cleaning of the floor surface is started, and the squeegee 104 can be raised and lowered by operating the elevating lever 116 via the squeegee holding bar 114 and the elevating wire 115. .
A conventional floor cleaning machine is usually equipped with only one cleaning tool 103, but a two-head, two-motor system may be used.

By the way, in the floor surface cleaning operation when the floor surface is uneven, the impact from the floor surface is applied to the cleaning tool 103, and the cleaning tool 103 cannot follow the unevenness of the floor surface, thereby preventing uniform cleaning. There is. Several improvement plans have been proposed as countermeasures.
For example, Patent Document 1 states that “the contact pressure on the floor surface can be maintained and an excellent cleaning effect can be exhibited, and that the cleaning brush exhibits excellent followability with respect to some unevenness on the floor surface. The body frame of the floor cleaning machine using the rotating arm, the motor base with the cleaning brush and the brush motor installed so that the brushing effect can be exhibited without floating or vibrating the brush. A lift frame having a lower end attached to the motor base side, a joint member that is moved down by the operation of the cylinder, a compression spring that is pressed and compressed by the joint member, and a compression spring A brush suspension device for a floor cleaning machine is disclosed, in which a spring receiving guide for transmitting a compressive force to the motor base and pressing the cleaning brush against the floor surface is attached.

In addition, Patent Document 2 states that “even if the pad that polishes the floor surface hits the unevenness of the floor surface during high-speed rotation and receives an impact, the impact is absorbed and the pad and the floor surface are prevented from being damaged. The actuating lever that moves up and down the pad and the platform with the pad motor is suspended via a tension spring on a hinge bolt that is mounted on a slider that moves up and down by a screw shaft that is rotated by the lifting motor. A suspension system for a pad in a machine is disclosed.

JP2001-112683A Public Open 04-116941

  The inventions disclosed in Patent Document 1 and Patent Document 2 alleviate the impact from unevenness on the floor surface to the cleaning pad of the floor surface cleaning machine and the polishing pad of the floor surface polishing machine (polisher) that are currently widely used. In addition, although it is an effective means for improving the followability to the unevenness of the floor surface, the above-described measures by the spring can enhance the followability to the vertical movement of the entire cleaning apparatus, the vertical movement in the traveling direction, and the unevenness of the floor surface. However, the response to the vertical movement in the right and left direction of the washing machine is not considered. For this reason, when the floor cleaning machine is used for a long period of time, the pressing force of the cleaning tool and the rotating pad on the floor surface in the direction of travel changes due to a shift in mechanical parallelism due to changes over time, and the cleaning area There is a risk that the cleaning degree may be uneven within the width. In such a case, there arises a situation where a portion where the cleaning is insufficient must be re-cleaned.

  In order to efficiently clean a large floor surface, it is effective to use a cleaning tool having a larger diameter. In this case, in addition to the imbalance between the left and right floor surface pressing forces, a large diameter cleaning member is used. It becomes more difficult to maintain uniform parallelism over the entire cleaning area of the floor surface. That is, if the cleaning tool has a larger diameter, it becomes more difficult to follow the unevenness of the floor surface. For this reason, the maximum diameter of the cleaning tool in a normal floor cleaning machine is limited to 20 inches, and when the width of the cleaning area is further increased, a floor cleaning machine in which two floor cleaning apparatuses are arranged in parallel. Is also used. However, even when two floor cleaning devices are arranged in parallel, the cleaning unevenness within the width of the cleaning region has not been solved.

The present inventors have solved the above problems by the following means.
(1) A plurality of floor surface cleaning tools rotating around the rotation main shaft are arranged radially in the horizontal direction below the rotating main shaft, and each of the plurality of floor surface cleaning tools rotates. configuration to Na Ru floor cleaning device to, an electric traveling floor cleaning machine comprising mounted on a front portion of the electric truck traveling on the floor surface,
Equipped with a mechanism that can raise and lower the floor surface cleaning device and control the pressing force on the floor surface of the lower surface of the floor surface cleaning tool for each of the left and right sides, and the structure of the mechanism is that the floor surface cleaning device is equipped with an electric motor The suspension board is attached to both ends of the circular substrate and is connected to a suspension bracket via a hinge that freely tilts in the traveling direction of the electric traveling floor washer. Further, the suspension bracket is connected to a rod of two electric actuators with a coil spring. An electric traveling floor cleaning machine characterized in that it is connected via a free joint and is suspended by an electric traveling floor cleaning machine.
(2) The floor cleaning device suspended from the electric traveling floor cleaning machine described in (1) rotates around the rotation main shaft in the horizontal direction below the rotation main shaft. It will be disposed a plurality of floor cleaning tool to radially, and an electric traveling type, wherein the plurality of floor cleaning tool is made be configured to rotate at different proprietary rpm respectively Floor cleaning machine .
(3) A plurality of floor cleaning apparatuses mounted on the electric traveling floor cleaning machine described in (1) rotate around the rotation main shaft in the horizontal direction below the rotation main shaft. The floor cleaners are arranged radially, and each of the plurality of floor cleaners has (a) different rotation directions, or (b) different rotation directions and different rotation speeds. electric traveling floor cleaning machine which is characterized in that those with composed configured to rotate.

( 4 ) The floor surface cleaning apparatus is provided with a cleaning liquid outlet hole through which the cleaning liquid is led out from below the rotating main shaft, and a cleaning liquid distributor is provided at the lower end of the rotating main shaft. electric according to any one of claims 1 to 3, characterized in that the cleaning liquid outlet hole provided by penetrating the rotation axis of each floor cleaner is obtained so as to distribute and supply the cleaning liquid from Traveling floor cleaning machine .

( 5) The floor surface cleaning device attaches a plurality of arms radially in the horizontal direction below the rotating spindle, and the floor surface cleaning tool can be rotated (rotated) freely at the tip of the arm. and claim 1, wherein the floor cleaning tools by a rotation force transmission mechanism for transmitting the rotation force of the rotary spindle to the floor cleaning tool is made be configured to rotate (rotation) The electric traveling floor cleaning machine according to any one of 4 .
( 6 ) The rotational force transmission mechanism includes a main gear provided on a rotary main shaft that is suspended, a slave gear provided on an upper portion of an intermediate rotation shaft that is suspended on an intermediate portion of the arm, and the intermediate rotation. a main pulley provided in the lower part of the shaft, said a slave pulley the floor cleaning tools provided cleaning tool rotating shaft mounted is made is constituted by a belt for connecting the said master-slave pulleys electric traveling floor cleaning machine according to the constitution (5).
( 7 ) The rotational force transmission mechanism is provided with a main gear provided on a rotary shaft that is suspended, a slave gear provided on a cleaning tool rotary shaft that is suspended on the arm, and a main gear provided on an intermediate rotation shaft. The electric traveling floor cleaning machine according to ( 5 ), characterized in that it is constituted by an idler gear interposed between a gear and a slave gear.

The carriage rear the drive wheels (8) Power dynamic traveling floor cleaning machine, including the followers in the central portion and the traveling wheel on the front, an actuator for vertically the floor cleaning apparatus, the cleaning liquid supply tank A mechanism for supplying the cleaning liquid to the floor cleaning apparatus and a contaminated cleaning liquid recovery tank, and a squeegee for collecting the contaminated cleaning liquid contaminated by the cleaning in the contaminated cleaning liquid recovery tank is disposed behind the slave wheel. The electric traveling floor cleaning machine according to any one of (1) to (6) .

The following effects are obtained by the floor cleaning machine of the present invention.
<1> A plurality of floor cleaning tools rotating around the rotation main shaft are arranged radially in the horizontal direction below the rotating main shaft, and each of the plurality of floor cleaning tools rotates. configuration to Na Ru floor cleaning device to, an electric traveling floor cleaning machine comprising mounted on a front portion of the electric truck traveling on the floor surface,
Equipped with a mechanism that can raise and lower the floor surface cleaning device and control the pressing force to the floor surface of the lower surface of the floor surface cleaning tool for each of the left and right front and back, the structure of the mechanism is equipped with an electric motor Attached to both ends of the circular substrate and connected to a suspension bracket via a hinge that tilts freely in the direction of travel of the electric traveling floor washer, and the suspension bracket is free of coil springs on the rods of the two electric actuators. Since it is connected through a joint and suspended from an electric traveling floor cleaning machine ,
The pressing force on the floor surface of the floor cleaning device can be adjusted by the amount of expansion and contraction of the rod of the electric actuator, and the impact due to unevenness of the floor surface and slight inclination fluctuations can be reduced, and the floor surface cleaning device can be freely moved in the direction of travel Combined with the action of the hinge that is tilted, it is possible to apply a uniform pressing force across the entire cleaning area in the front-rear and left-right directions, that is, over the entire cleaning area, so that uniform cleaning can be efficiently performed over the entire cleaning area.
<2> A plurality of floor surface cleaning devices in which a plurality of floor surface cleaning devices suspended from an electric traveling floor surface cleaning machine rotate around the rotation main shaft in the horizontal direction below the rotation main shaft. And the plurality of floor cleaning tools are configured to rotate at different rotation speeds , so that the floor cleaning of a conventional traveling floor cleaning machine is performed. Compared to the apparatus, a wide cleaning area width can be obtained, and a uniform floor surface cleaning with no cleaning unevenness can be performed over the entire cleaning range.
<3> The floor cleaning device suspended on the electric traveling floor cleaning machine radiates a plurality of floor cleaning tools that rotate around the rotating spindle in the horizontal direction below the rotating spindle. And each of the plurality of floor surface cleaning tools is configured to rotate at (a) a different unique rotation direction, or (b) a different unique rotation direction and a different unique rotation number. since it becomes one, it can be further enhanced effects described in <2>.

<4> The floor cleaning device is provided with a cleaning liquid outlet hole through which the cleaning liquid is led out from below the rotation main shaft, and a cleaning liquid distributor provided at the lower end of the rotation main shaft. Since the cleaning liquid is distributed and supplied to the cleaning liquid outlet holes provided through the rotating shafts of the floor cleaning tools ,
No splashing to the surroundings of the cleaning solution to be dripped to the floor, combined with the rotation of the floor cleaning tool, homogeneous cleaning can be performed efficiently over a cleaning area entire surface.

<5> The floor cleaning apparatus can attach a plurality of arms radially in the horizontal direction below the suspended rotation spindle, and can freely rotate (rotate) the floor cleaning tool at the tip of the arms. And the floor cleaning tool is configured to rotate (spin) by a rotational force transmission mechanism that transmits the rotational force of the rotating main shaft, and the rotational force transmission mechanism comprises (a) A main gear provided on the rotary main shaft provided vertically, a slave gear provided on an upper portion of the intermediate rotary shaft provided on an intermediate portion of the arm, and a main pulley provided on a lower portion of the intermediate rotary shaft; A secondary pulley provided on a rotary shaft on which the floor surface cleaning tool is mounted, and a belt connecting the primary and secondary pulleys; or (b) a main gear provided on a rotary rotary shaft that is suspended. , Provided on the rotating shaft of the floor cleaning tool suspended from the arm. Rotation and従歯wheel, etc. depending on the idler gear is interposed between the main gear and the従歯wheel provided in the intermediate rotary shaft made which consists can be selected and used, the rotational speed of the floor cleaning tool was speed and different et allowed the main shaft, or the same time, since the rotation direction of the rotation direction and the rotation spindle of the floor cleaning tool is caused also to rotate in different, a plurality of rotating about the rotary spindle of the floor cleaning tool Since each rotation can be changed, various double rotations are possible, and a uniform floor surface cleaning with no cleaning unevenness over the entire floor surface cleaning width becomes possible.

<6> A drive wheel at the rear of the carriage of the electric traveling floor washer , a follower at the center, a steering handle at the front, an actuator for moving the floor cleaning device up and down, and a cleaning liquid supply tank A mechanism for supplying the cleaning liquid to the floor cleaning apparatus and a contaminated cleaning liquid recovery tank, and a squeegee for recovering the contaminated cleaning liquid contaminated by the cleaning to the contaminated cleaning liquid recovery tank is disposed behind the slave wheel. Therefore, the effect as described in said <1>-<5> can be exhibited efficiently by drive | working an electric travel type floor surface washing machine.

The block diagram which looked at one Example of the floor surface washing | cleaning apparatus of this invention from the side of the electric traveling type floor surface washing machine mounted in the electric trolley | bogie The block diagram which looked at one Example of the floor surface washing | cleaning apparatus of this invention from the front of the electric traveling type floor surface washing machine mounted in the electric trolley | bogie Structure explanatory drawing of one Example of the floor surface cleaning apparatus of this invention Plan view of the rotational force transmission mechanism of the floor cleaning apparatus shown in FIG. Configuration explanatory diagram of another embodiment of the floor cleaning apparatus of the present invention Plan view of the rotational force transmission mechanism of the floor cleaning apparatus shown in FIG. Side view showing an example of a conventional floor cleaning machine

EMBODIMENT OF THE INVENTION The form for implementing the floor surface cleaning apparatus of this invention is demonstrated based on the figure of an Example.
FIG. 1 is a structural view of an embodiment of the floor cleaning apparatus according to the present invention as viewed from the side of an electric traveling floor cleaning machine mounted on an electric carriage, and FIG. 2 is an embodiment of the floor cleaning apparatus according to the present invention. FIG. 3 is a structural explanatory view of the floor cleaning apparatus shown in FIGS. 1 and 2, as viewed from the front of the electric traveling floor cleaning machine mounted on the electric carriage.

  In FIGS. 1 and 2, 1 is an electric traveling floor cleaning machine, 2 is a floor cleaning apparatus surrounded by a dotted line, 3 is an electric actuator for raising and lowering the floor cleaning apparatus 2, 4 is a cleaning liquid tank, and 5 is a cleaning liquid supply pump. , 6 is an electromagnetic on-off valve for supplying and shutting off the cleaning liquid, 7 is a contaminated cleaning liquid recovery tank, 8 is a contaminated cleaning liquid recovery pump, 9 is a squeegee for sucking the contaminated cleaning liquid, 10 is an electric actuator for raising and lowering the squeegee, and 11 is a front wheel ( Casters), 12 rear wheels (drive wheels), 13 rear wheel drive motors, 14 a steering motor, 15 a handle, 16 an operation box, 17 a control unit, 18 a battery, 19 an electric actuator 3 A suspension bracket 20 for suspending the floor surface cleaning device 2 is attached to the bracket 19 so that the floor surface cleaning device 2 can freely tilt with respect to the traveling direction of the carriage. It shows the hinge to be mounted. 21 is a coil spring attached between the bracket 19 and the electric actuator 3, 22 is a free joint provided between the rod of the electric actuator 3 and the coil spring 21, and 23 is a vertical movement of the floor cleaning device 2 via the bracket 19. A linear guide 24 for raising and lowering to the right and left shows a linear rod suspended from brackets attached to the top and bottom of the frame of the electric traveling floor washer 1. Reference numeral 25 denotes an electric motor for rotating the rotary main shaft of the floor surface cleaning apparatus 2, and 26 denotes a circular base on which the electric motor is mounted.

The floor cleaning apparatus 2 includes a hinge 20 that freely tilts in the traveling direction of the electric traveling floor cleaning machine 1 in which circular substrates 26 on which electric motors 25 shown in FIG. The suspension bracket 19 is connected to the suspension bracket 19, and the suspension bracket 19 is attached to the rods of the two electric actuators 3 via coil joints 21 via free joints 22 and suspended from the electric traveling floor cleaning machine 1. Therefore, the floor surface cleaning device 2 can be used when the floor surface is cleaned by moving the linear guides 23 provided at the left and right ends of the suspension bracket 19 along the linear rods 24 by expanding and contracting the rod of the electric actuator 3. 2 is pressed against the floor surface, and the floor surface cleaning device 2 can be lifted from the floor surface during traveling.
Further, since the floor cleaning device 2 is suspended from the coil spring 21 via a free joint 22 which is a flexible joint, the pressing force applied to the floor surface of the floor cleaning device 2 by the amount of expansion / contraction of the lot of the electric actuator 3 In combination with the action of the hinge 20 that freely tilts in the direction of travel of the floor cleaning device 2, that is, cleaning of the front and rear of the traveling direction, that is, cleaning. A uniform pressing force can be applied over the entire area.

  Hereinafter, two examples of the structure and operation of the floor surface cleaning apparatus 2 will be described in detail with reference to the drawings of the examples.

FIG. 3 is a configuration diagram of a floor surface cleaning apparatus provided with four rotating floor surface cleaning tools, and FIG. 4 is a plan configuration diagram of a rotational force transmission mechanism of the floor surface cleaning device shown in FIG.
As shown in FIG. 4, the first embodiment includes four floor cleaning tools, two of which rotate clockwise (or counterclockwise) and the other two rotate counterclockwise (or clockwise). In addition, the adjacent floor cleaning tools are configured to rotate (rotate) in opposite directions, and the entire four floor cleaning tools rotate (revolve) around the rotation main shaft of the floor cleaning device 2. It is equipped with a heavy rotation mechanism. Therefore, as can be seen in FIG. 4, the rotational force transmission mechanism in the VV direction and the rotational force transmission mechanism in the HH direction are different in structure.
Therefore, in FIG. 3, the cross-sectional configuration of the left half in the HH direction of FIG. 4 is on the left side with respect to the central axis AA, and the cross-sectional configuration of the lower half in the VV direction of FIG. Indicated.

3 and 4, reference numeral 27 denotes a rotation main shaft attached to the electric motor 25, 29 denotes a main gear fastened and fixed to the circular substrate 26 with bolts, and the main gear 29 is arranged so that the rotation main shaft 27 can freely rotate. A rolling bearing 29 is provided between the main shaft 27 and the rotary main shaft 27. Reference numeral 30 denotes an arm for radially disposing the rotary shaft 32 of the floor surface cleaning tool 31 around the rotating main shaft 27, and the arm 30 includes four floor surface cleaners as shown in FIG. The tool 31 is configured to be arranged in four directions at intervals of 90 degrees, and the main gear 28 and the two floor surface cleaning tools 31 in the VV direction and the HH direction are rotated reversely to each other. The coupling structure with the slave gear 33 is different.
That is, on the arm 30a in the VV direction shown in FIG. 4, as shown on the right side of FIG. 3, the follower gear 33a of the upper end portion of the intermediate rotating shaft 34a provided through the arm 30a is connected to the main gear 28. As shown on the left side of FIG. 3, a follower gear 33b of the upper end portion of the intermediate rotating shaft 34b provided through the arm 30b is provided on the arm 30b in the HH direction. An idler gear 35 is disposed between the main gear 28 and the slave gear 33b so as to mesh with both the main gear 28 and the slave gear 33b.

  A main pulley 36a is disposed at the lower end of the intermediate rotation shaft 34a in the VV direction, and a main pulley 36b is disposed below the arms 30a and 30b at the lower end of the intermediate rotation shaft 34b in the HH direction. A sub pulley 37a and a sub pulley 37b are disposed on the V-V direction cleaning tool rotating shaft 32 for rotating the floor cleaning tool 31 and the H-H direction cleaning tool rotation shaft 32, respectively. 38 is a timing belt for connecting the main pulley 36a and the sub pulley 37a, and connecting the main pulley 36b and the sub pulley 37b to rotate the cleaning tool rotating shaft 32. The rotary base 31c is fastened, and the floor cleaning member 31a is fixed to the rotary base 31c via the bracket board 31b. Reference numeral 39 denotes a bearing holder equipped with a rolling bearing 29 so that the cleaning tool rotating shaft 32 can freely rotate with respect to the arm 30.

  Reference numeral 41 denotes a rotary joint for allowing the cleaning liquid to flow from the upper end of the rotary main shaft 27 to the cleaning liquid outlet hole 42 penetrating the rotary main shaft 27 via the tube 41 connected to the cleaning liquid supply pump 6 (see FIG. 1). The cleaning liquid distributor distributes the cleaning liquid flowing down the cleaning liquid outlet hole 42 in the rotary main shaft 27 through the tube 41 to the cleaning liquid outlet hole 42 penetrating the rotary shaft 30 of each cleaning applicator 29. The cleaning liquid distributor 43 includes an upper lid and a distribution container, and the upper lid and the distribution container are fastened with bolts with an O-ring interposed therebetween. The upper lid is connected to the rotary main shaft 27 through a rotary joint 40, and a hole for distributing the cleaning liquid to the four floor surface cleaning tools 31 is formed in the peripheral wall of the distribution container, and the joint screwed into the hole. And the tube 41 and the rotary joint 40 are supplied to the cleaning liquid outlet hole 42 penetrating the rotary shaft 32 of each floor surface cleaning tool 29.

The embodiment and operation of the floor surface cleaning apparatus 2 having four floor surface cleaning tools 31 shown in FIGS. 3 and 4 will be described in detail below.
A DC geared motor having a hollow shaft output of 400 W and a gear ratio of 50 is used as the electric motor 25 for rotating the rotary main shaft 27 provided vertically, and this is attached to the circular substrate 26 of the floor cleaning apparatus 2, and then the electric motor. A rotary main shaft 27 having an inner diameter of 6 mm through the cleaning liquid outlet hole 42 is inserted into the hollow shaft portion 25, and then a main gear 28 (module 1, number of teeth 120) incorporating a rolling bearing 29 is mounted on the rotary main shaft 27, and at the same time The main gear 28 was fastened to the circular substrate 26 with bolts. Further, an arm 30 is disposed under the main gear 28 and attached to the rotary main shaft 27 by a fastener (key).
Of the four arms 30, the slave gear 33a attached to the two arms 30a in the VV direction has the module 1 and the number of teeth 90 and is attached to the two arms 30b in the HH direction. The gear 33b has a module 1 and 60 teeth, and the idler gear 35 has a module 1 and 30 teeth. Next, the main pulley 36a (number of teeth 34) is attached to the intermediate rotating shaft 34 to which the driven gear 33a is attached, and the main pulley 36b (number of teeth 60) is attached to the arm 30a to the intermediate rotating shaft 34 to which the driven gear 33b is attached. It was attached below 30b. Also, sub pulleys 37a and 37b are attached to the cleaning tool rotating shaft 32 with the floor cleaning tool 31 attached to the lower part, respectively, between the main pulley 36a and the sub pulley 37a, and between the main pulley 36b and the sub pulley 37b. A timing belt 38 is provided, and the rotation of the main rotation shaft is transmitted to the cleaning tool rotation shaft. The slave pulley 37a has 72 teeth and the slave pulley 37b has 44 teeth.
Each cleaning tool rotating shaft 32 to which the slave pulleys 37a and 37b are attached has a 6 mm diameter pore as a cleaning liquid outlet hole 42.

  The distance between the rotation main shaft 27 of the arm 30 on which the gears and pulleys are arranged as described above and the cleaning tool rotating shaft 32 for rotating the floor cleaning tool 31 is 285.6 mm, and the four cleaning members 31a ( A cleaning pad having a diameter of 15 inches (380 mm) can be used as a size that does not interfere with each other, and the cleaning area width of the floor surface that can be cleaned by rotating the four cleaning members 31a around the rotation main shaft 27 is 951 mm. It becomes.

  Depending on the contamination of the floor surface, the cleaning member 31a may be a regular red pad (for light surface cleaning, polyester nonwoven fabric coated with mineral particles), blue pad (surface cleaning work, polyester nonwoven fabric coated with abrasive grains), etc. A circular cleaning member is attached to the bracket board 31b via a fastener. In Example 1, a commercially available 15-inch (380 mm) diameter member was used as the cleaning member 31a.

  The supply of the cleaning liquid to the floor cleaning tool 31 penetrates from the cleaning liquid supply tank 4 shown in FIG. 1 to the central portion of the rotary spindle 27 through the cleaning liquid supply pump 5, the electromagnetic on-off valve 6, and the tube 41 shown in FIG. Is sent to the cleaning liquid outlet hole 42, and is then equally distributed in four directions by a cleaning liquid distributor 43 attached to the lower end of the rotating main shaft 27, and provided on the upper part of the cleaning tool rotating shaft 32 of each floor surface cleaning tool 31. Since it is sent to the rotary joint 40 and dropped from the end of the cleaning tool rotating shaft 32 to the floor surface through the cleaning liquid outlet hole 42 penetrating through the center of the cleaning tool rotating shaft 32, four floor surface cleanings are performed. The cleaning liquid is evenly distributed over the entire cleaning area by the rotation (autorotation) of the tool 31 itself and the rotation of the four floor surface cleaning tools 31 around the rotation main shaft 27.

  Further, the cleaning liquid supply tank 4 fixed to the electric traveling floor cleaning machine 1 is passed through the cleaning liquid supply pump 5, the electromagnetic on-off valve 6 and the tube 41 to the cleaning liquid outlet hole 42 of the rotary main shaft 27, and below the rotary main shaft 25. In order to reliably supply the cleaning liquid from the provided cleaning liquid distributor 43 to the cleaning liquid outlet hole 42 of the cleaning tool rotating shaft 32 through the tube 41, between the rotating main shaft 27 and the cleaning liquid distributor 43, and each A rotary joint 40 is mounted on the upper part of the cleaning tool rotating shaft 32. Accordingly, the cleaning liquid is smoothly and stably dropped from the lower end of the floor cleaning tool 31 onto the floor without the tube 41 connecting the cleaning liquid distributor 43 and the cleaning tool rotating shaft 32 being entangled with the rotating portion of the floor cleaning device 2. be able to.

Further, an arm 30 to which a rotational force transmission mechanism such as a floor surface cleaning tool 31, a cleaning tool rotating shaft 32, a main gear 28, slave gears 33 a and 33 b, main pulleys 36 a and 36 b and a timing belt 38 is attached is connected to the rotating main shaft 27. Since they are attached radially, the degree of freedom in attaching the tube 41 connecting the cleaning liquid distributor 43 and the upper end of the cleaning tool rotating shaft 32 is increased, and the weight of the apparatus can be reduced, which is preferable.
Since the cleaning liquid tank 4 is always disposed above the floor surface, the cleaning liquid may fall from the lower end of the floor surface cleaning tool 31 to the floor surface due to the siphon effect even when the cleaning operation is stopped. Therefore, the electromagnetic valve 6 is provided between the cleaning liquid supply pump 5 and the tube 41 in order to prevent the cleaning liquid from dripping onto the floor surface due to the siphon effect. Any electromagnetic valve 6 can be used as long as it can prevent dripping of the cleaning liquid due to the siphon effect.

In the first embodiment, the arm 30 is fastened and fixed to the rotation main shaft 27, and the main gear 28 is rotatably mounted on the rotation main shaft 27 via a rolling bearing. Therefore, when the electric motor 25 is rotated, the arm 30 starts to rotate due to the rotation of the rotation main shaft 27, and at the same time, the slave gears 33a and 33b rotate around the main gear 28 fixed to the circular substrate 26.
As a result, when the slave gear 33a meshed with the main gear 28 and the slave gear 33b meshed with the main gear 28 via the idler gear 35 rotate, the intermediate rotary shafts 34a, 34b with the slave gears 33a, 33b attached rotate. At the same time, the main pulleys 36a and 36b attached to the intermediate rotating shafts 34a and 34b also rotate. When the main pulleys 36a and 36b rotate, the sub pulleys 37a and 37b connected to the main pulleys 36a and 36b and the cleaning tool rotating shaft 32 to which the floor surface cleaning tool 31 is attached rotate, and the cleaning member 31a rotates and rotates around the rotating main shaft 27. Double rotation with rotation (revolution) is realized. The rotation direction of the cleaning member 31a on the side where the idler gear 35 is mounted (HH direction) and the cleaning member 31a on the side where the idler gear 35 is not mounted (VV direction) are opposite.
In this case, the reaction force from the floor surface caused by the difference in the rotational speed with respect to the floor surface due to the difference in the rotation direction becomes a load on the electric motor 25. Therefore, in order to suppress this, the rotational speed of the four cleaning members 31a with respect to the floor surface It is preferable to appropriately select the gear ratio of the main gear 28, the sub-gears 33a and 33b, the main pulleys 36a and 36b, and the sub-pulleys 37a and 37b.

As described above, the rotation speed of the arm 30 around the rotation main axis and the rotation speed of the floor cleaning tool 29 are different from each other because the rotation speed of the arm 30 around the rotation main axis and the rotation speed of the floor cleaning tool 31 are the same. In this case, when viewed from the arm 30, the floor cleaning tool 31 prevents the floor from rotating and prevents the floor from being cleaned.
That is, in the H-H direction, the idler gear 35 and the idler gear 35 are mounted between the main gear 28 and the slave gear 33b, so the rotation direction of the rotary main shaft 27 is the same as the rotation direction of the floor cleaning tool 31. Therefore, the rotational speed with respect to the floor surface is reduced. If the rotation speed of the rotary main shaft 27 and the rotation speed of the floor surface cleaning tool 31 are made the same, the floor surface cleaning tool 31 itself does not rotate with respect to the floor surface. On the other hand, since the idler gear 35 is not mounted in the VV direction, the rotation of the floor cleaning tool 31 is opposite to the rotation main shaft 27, so that the rotation with respect to the floor surface is accelerated.
According to the configuration of the gear and pulley of the first embodiment, in the VV direction,
(120/90) × (34/72) + 1 = 1.63
On the other hand, in the HH direction,
(120/60) × (60/44) −1 = 1.73
The rotation speed ratio is approximately equal to the floor surface. As a result, the four floor surface cleaning tools 31 can simultaneously rotate at the same speed relative to the floor surface and rotate around the rotation main shaft 27, and two of the four floor surface cleaning tools 31 are reversed. Since it rotates in the direction, the cleaning effect on the floor surface can be further enhanced.

An experiment for cleaning a floor surface by the traveling floor surface cleaning machine 1 in which the floor surface cleaning apparatus 2 of the first embodiment is mounted on an electric carriage is performed by a plastic tile (P) of a mass retailer (supermarket) that is soiled with dust or a heel mark. (Tile) on the floor. The running speed is 1 to 4 km / hour, the rotational speed of the electric motor 25 is changed to 30 to 60 rpm, the pressing force to the floor surface of the floor cleaning device 2 is changed to 10 to 30 kg, and a commercially available detergent is used for the cleaning member 31a. Was evaluated by comparing the degree of cleaning before and after the test using the red pad and blue pad described above.
Moreover, the peeling test of the wax applied to the floor surface using water as the cleaning liquid was also performed using a pad made of nylon fibers coated with abrasive grains (manufactured by Sumitomo 3M, trade name SPP).
as a result,
1. In a cleaning test using a commercially available detergent, the floor surface was evenly and uniformly cleaned over the entire cleaning width as compared with a conventional traveling floor cleaning machine.
2. Also in the peeling test of the applied wax performed using water, the wax could be removed uniformly and uniformly over the entire peeling width.

  As described above, in comparison with the conventionally proposed floor surface cleaning apparatus, excellent cleaning performance was obtained in the horizontal direction below the rotary spindle 27 that was suspended, around the rotary spindle 27. A plurality of rotating floor cleaning tools 31 are arranged radially, and the plurality of floor cleaning tools 31 are configured to rotate.

  Further, in addition to the rotation of the floor surface cleaning tool 31 and the rotation around the rotation main shaft 27, the pressing force to the floor surface of the floor surface cleaning tool 31 is determined by the amount of extension of the lot of the electric actuator 3 that suspends the entire floor surface cleaning device 2. Therefore, not only uniform cleaning can be performed over the entire cleaning area, but also smooth running and cleaning are possible even if there are large irregularities on the floor surface. At this time, by measuring the contraction allowance of the coil spring 21, the pressing force to the floor surface of the floor surface cleaning tool 31 can be calculated from the total weight of the floor surface cleaning device 2, so that the floor surface cleaning tool 31 to be used is replaced. Even if the working conditions change, it is possible to carry out the cleaning work with the target proper pressing force.

  Furthermore, if one floor surface cleaning member having a diameter corresponding to a large cleaning area width (951 mm) as in the first embodiment is rotated to clean the floor surface, the rotating shaft and floor of the floor surface cleaning tool are used. Although it is difficult to finish the entire width of the cleaning region to a uniform cleaning surface due to rotational shake due to imbalance of the surface cleaning tool itself, in the present invention, the plurality of floor surface cleaning tools 31 are rotated and rotated around the rotation main shaft 27 (revolution). Each of the floor cleaners 31 counteracts each other to improve the uniformity of the floor cleaning, and also improves the follow-up to the unevenness of the floor surface, making the floor surface more uniform and with a wider cleaning area width. It can be cleaned efficiently.

In the first embodiment, the four floor cleaning tools 31 are rotated by two in a direction opposite to each other. However, the rotation directions of the four floor cleaning tools 31 can be set to the same direction. The same invention effect can be obtained.
In the first embodiment, the case where the number of floor cleaning tools 31 is four has been described. However, the number of the floor cleaning tools 31 may be three or five depending on the width of the floor and the width of the cleaning area. Can be applied. When the number of the floor cleaning tools 31 is two, the contact area of the floor cleaning tool 31 with respect to the cleaning area on the floor surface is small, and the cleaning power and the uneven surface followability of the floor surface are reduced. If the number is six or more, the floor cleaning tool 31 interferes with each other, so the diameter of the floor cleaning tool 31 must be reduced, and the contact area with the floor surface is reduced.

  In addition, as a means for transmitting the rotational force of the intermediate rotating shafts 34a and 34b to the cleaning tool rotating shaft 32, a pulley and a timing belt are used in the first embodiment, but instead of this, a sprocket, a chain or the like is used alone, or A transmission mechanism combining these can also be used.

  Furthermore, in this embodiment 1, it is a mechanism that rotates four floor surface cleaning tools 31 two by two in opposite directions, but by appropriately selecting the number of teeth of the main gear, slave gear, master pulley, slave pulley, Even if the number of rotations and the direction of rotation of the four floor surface cleaning tools 31 are individually changed, the same invention effect can be obtained.

In the floor surface cleaning apparatus 2 of the first embodiment, the effect is effectively exhibited in cleaning in a wide cleaning range width. However, in the electric traveling floor surface cleaning machine 1 in the case where the cleaning area width is less than 600 mm, it is relatively small. As the floor surface cleaning device 2 to be mounted, the rotational force transmission mechanism of the floor surface cleaning device 2 shown in the first embodiment can be further simplified.
The simplified torque transmission mechanism will be described as a second embodiment with reference to FIGS. 5 and 6. The traveling mechanism, cleaning liquid supply mechanism, contaminated cleaning liquid recovery mechanism, squeegee, etc. of the electric traveling floor cleaning machine are the same as those in the prior art, and thus detailed description thereof is omitted.

FIG. 5 is a configuration diagram of a floor surface cleaning device including four rotating floor surface cleaning tools, and FIG. 6 is a plan configuration diagram of a rotational force transmission mechanism of the floor surface cleaning device shown in FIG.
Also in the second embodiment, as shown in FIGS. 5 and 6, as in the first embodiment, four floor cleaning tools 31 are provided, two of which are clockwise (or counterclockwise) and the other two. Each counterclockwise (or clockwise) and adjacent floor cleaning tools 31 rotate in opposite directions, and further four floor cleaning tools 31 rotate around the rotation main shaft 27. It is equipped with.

5 and 6, parts having the same names and functions as those shown in the first embodiment are denoted by the same reference numerals in accordance with the first embodiment.
The electric motor 25 in FIG. 5 is a parallel axis electric motor, and the electric motor 25 is fixed to the circular substrate 26 as in the first embodiment. The main gear 28 is fixed to the housing of the electric motor 44 with a bolt, and a bearing is attached to the central portion of the main gear 28 so that the rotating main shaft 27 inserted through the main gear 28 can smoothly rotate. The tip of the rotating main shaft 27 is tapped, and the bracket 44 and the rotating main shaft 27 are fixedly secured with bolts. The brackets 44 are attached radially in four directions at intervals of 90 degrees. The idler gears 35a, 35b, and 35c are attached to the intermediate rotary shafts 34a, 34b, and 34c that are suspended from the arm 30, respectively.
That is, as shown in FIG. 6, the idler gear 35a is disposed on the radially-arranged arm 30a, and the idler gears 35b and 35c are disposed on the H-H arm 30b. A slave gear 33a attached to a cleaning tool rotating shaft 32 attached to the arm 30a is arranged on the outer side so as to mesh with it, and an outer side of the idler gear 34c is attached to a cleaning tool rotating shaft 32 attached to the arm 30b. A worn slave gear 33b is provided.
A rotating base 31c is provided at the lower end of each cleaning tool rotating shaft 32, and a cleaning member 31a fixed to the bracket board 31b by a fastener is attached to the rotating base 31c.
The cleaning liquid flows out from the cleaning liquid supply pipe 45 having a small diameter to the floor surface.

Also in the second embodiment, as in the first embodiment, when the electric motor 25 is operated by the rotational force transmission mechanism, the rotation main shaft 27 rotates, and the arm 30 fixed to the rotation main shaft 27 rotates. If the arm 30 rotates around the main gear 28, the idler gears 35a and 35b meshed with the main gear 28 and the slave gears 33a and 33b meshed with the idler gear 35b via the idler gear 35a and idler gear 35c rotate. Thus, the floor cleaning tool 31 disposed on the cleaning tool rotating shaft 32 suspended from the slave gears 33a and 33b rotates. In this case, as in Example 1, two of the four floor cleaning tools 31 in the VV direction and two in the HH direction are connected to the main rotary shaft 27 and the cleaning tool rotary shaft 32. Since the number of idler gears interposed between them is different, they rotate in opposite directions.
According to the configuration of the rotational force transmission mechanism in the second embodiment, an 8 inch (20 mm) diameter member can be used as the cleaning member 31a, and the cleaning region width is 509 mm. As the electric motor 25, a parallel shaft DC geared motor having an output of 550 W and a gear ratio of 12 was used.

  Further, the main gear 28 has a module 1.0 and the number of teeth 96, and the idler gears 35b and 35c in the VV direction each have a module 1.0 and a total of 30 teeth, and a total of four in the HH direction. The idler gear 35a is provided with a module of 1.0 and 90 teeth. The VV direction gear 33b has a module 1.0 and 90 teeth, and the H-H direction gear 33a has a module 1.0 and 32 teeth.

According to the configuration of the gear and the pulley of the second embodiment, in the VV direction, (96/30) × (30/90) + 1 = 2.07
On the other hand, in the HH direction,
(96/90) × (90/32) −1 = 2.00
The rotation speed ratio is approximately equal to the floor surface. As a result, the four floor surface cleaning tools 31 can simultaneously obtain the rotation speed and the rotation around the rotation main shaft at substantially the same speed with respect to the floor surface, and the two rotation directions are opposite to each other. The cleaning effect on the surface could be further enhanced.

  As a result of performing the same test as in Example 1, compared with a conventional traveling washing machine having a similar cleaning area width, the degree of dirt removal and uniformity of the floor surface is excellent over the entire cleaning area width, and efficient. The cleaning operation was carried out. Similar to the first embodiment, this effect is achieved by improving the cleaning force by the double rotation mechanism that rotates around the rotation main shaft 27 while the floor cleaning tool 31 itself rotates, and at the same time, the coil spring 21 disposed in the electric actuator 3. The pressing force (surface pressure) on the floor surface of the floor cleaning tool 31 can be kept constant, and in addition, it has a mechanism that can absorb both the front-rear and left-right fluctuations of the pressing force due to the unevenness of the floor surface. Yes.

  In the second embodiment, the idler gear is disposed between the main gear and the slave gear. However, in the case of a floor surface cleaning device having a relatively narrow cleaning region width, the idler gear is not disposed even if the idler gear is not disposed. A double rotation mechanism is obtained.

  The present invention is not limited to the embodiments described so far. A plurality of floor cleaning tools are attached to a radial arm, the floor cleaning tools themselves are rotated, and the centers of the plurality of floor cleaning tools are rotated. Any method provided with a double rotation mechanism in which the plurality of floor surface cleaning tools rotate around a rotation main shaft that is arranged vertically is provided.

  The double rotation mechanism of the present invention is not limited to floor surface cleaning work, and if the floor surface cleaning tool is replaced with a floor surface wax coating pad and the cleaning liquid supply mechanism is a wax liquid supply mechanism, the entire width is uniform and It can be used as an apparatus for efficiently applying wax to the floor surface.

1: Electric traveling type floor cleaning machine 2: Floor cleaning device 3: Electric actuator 4: Cleaning liquid tank 5: Cleaning liquid supply pump 6: Solenoid open / close valve 7: Contaminated cleaning liquid recovery tank 8: Contaminated cleaning liquid recovery pump 9: Squeegee 10: Electric actuator 11: Front wheel (caster)
12: Rear wheel (drive wheel)
13: Rear wheel drive motor 14: Steering motor 15: Handle 16: Operation box 17: Control unit 18: Battery 19: Suspension bracket 20: Hinge 21: Coil spring 22: Free joint 23: Linear guide 24: Linear rod 25: Electric motor 26: Circular substrate 27: Rotating main shaft 28: Main gear 29: Rolling bearings 30, 30a, 30b: Arm 31: Floor cleaning tool 31a: Cleaning member 31b: Bracket board 31c: Rotating base 32: Cleaning tool rotating shaft 33a 33b: Subordinate gears 34a, 34b, 34c: Intermediate rotating shafts 35a, 35b, 35c: Idler gears 36a, 36b: Main pulleys 37a, 37b: Subordinate pulleys 38: Timing belts 39: Bearing holders 40: Rotary joints 41: Tubes 42 : Cleaning liquid outlet hole 43: Washing Liquid distributor 44: Bracket 45: cleaning liquid supply pipe

Claims (8)

A plurality of floor cleaning tools that rotate around the rotation main shaft are arranged radially in the horizontal direction below the rotating main shaft, and the plurality of floor cleaning tools rotate respectively. the floor cleaning apparatus ing constructed, an electric traveling floor cleaning machine comprising mounted on a front portion of the electric truck traveling on the floor surface,
Equipped with a mechanism that can raise and lower the floor surface cleaning device and control the pressing force on the floor surface of the lower surface of the floor surface cleaning tool for each of the left and right sides, and the structure of the mechanism is that the floor surface cleaning device is equipped with an electric motor The suspension board is attached to both ends of the circular substrate and is connected to a suspension bracket via a hinge that freely tilts in the traveling direction of the electric traveling floor washer. Further, the suspension bracket is connected to a rod of two electric actuators with a coil spring. An electric traveling floor cleaning machine characterized in that it is connected via a free joint and is suspended by an electric traveling floor cleaning machine. A floor cleaning apparatus suspended from the electric traveling floor cleaning machine according to claim 1, wherein the floor cleaning apparatus rotates around the rotation main shaft in the horizontal direction below the rotation main shaft. becomes a cleaning device with radially arranged, and the electric traveling floor cleaning machine, wherein the plurality of floor cleaning tool is made is configured to rotate on its own rotational speed different from each other . A floor cleaning apparatus suspended from the electric traveling floor cleaning machine according to claim 1, wherein the floor cleaning apparatus rotates around the rotation main shaft in the horizontal direction below the rotation main shaft. The cleaning tools are arranged radially, and each of the plurality of floor surface cleaning tools is rotated at (a) a different unique rotation direction, or (b) a different unique rotation direction and a different unique rotation speed. An electric traveling floor cleaning machine characterized in that it is configured as described above. A cleaning liquid outlet hole through which the cleaning liquid is led out from below is provided through the rotating main shaft, and a cleaning liquid distributor is provided at the lower end of the main rotating shaft, and the cleaning liquid distributor passes through the rotating shaft of each floor cleaning tool. The electric traveling floor cleaning machine according to any one of claims 1 to 3 , wherein the cleaning liquid is distributed and supplied to the cleaning liquid outlet holes provided. The floor cleaning apparatus is configured to attach a plurality of arms radially in a horizontal direction below a rotating main shaft that is suspended, and to freely rotate (rotate) a floor cleaning tool at the tip of the arm. any by the rotational force transmission mechanism for transmitting the rotation force of the rotary spindle to the surface cleaning tool of claim 1-4, wherein the floor cleaning tool is made be configured to rotate (rotation) The electric traveling floor cleaning machine according to claim 1 . The rotational force transmission mechanism includes a main gear provided on a rotary main shaft that is suspended, a slave gear provided on an upper portion of the intermediate rotary shaft that is suspended on an intermediate portion of the arm, and a lower portion of the intermediate rotational shaft. a main pulley provided in, and the slave pulley provided on the cleaning tool rotating shaft fitted with the floor cleaning tool, and wherein those composed is constituted by a belt for connecting the master-slave pulleys The electric traveling floor cleaning machine according to claim 5 . The rotational force transmission mechanism includes a main gear provided on a rotary main shaft that is suspended, a slave gear provided on a cleaning tool rotary shaft that is suspended on the arm, and a main gear and a slave provided on an intermediate rotary shaft. electric traveling floor cleaning machine according to claim 5, characterized in that it made is configured by the idler gear is interposed between the gears. Wherein the carriage rear the driving wheels of the electric dynamic traveling floor cleaning machine, the followers in the central portion, and that the traction handle to the front, an actuator for vertically the floor cleaning apparatus, including a cleaning liquid supply tank A mechanism for supplying the cleaning liquid to the floor surface cleaning device and a contaminated cleaning liquid recovery tank are provided, and a squeegee for recovering the contaminated cleaning liquid contaminated by the cleaning to the contaminated cleaning liquid recovery tank is disposed behind the slave wheel. The electric traveling floor cleaning machine according to any one of claims 1 to 6, wherein

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