JP2014204921A - Floor surface processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform attachment/detachment of a processing member without largely lifting a wheel in a floor surface processing apparatus having the processing member such as a brush provided in the periphery of the wheel.SOLUTION: A floor surface processing apparatus comprises a processing member which rotates along a floor surface, a connection member which is connected to the processing member so as to be integrally rotatable with the processing member and has a through hole on the central part of the rotation, and a wheel which is supported by a support member penetrating the through hole of the connection member. In the processing member, an inner peripheral surface and an outer peripheral surface of at least one member constituting the processing member are connected with each other in the rotation surface.

Description

  The present invention relates to a floor surface processing apparatus for rotating a processing member such as a brush or a pad along the floor surface by self-propelled or operator's driving operation to perform cleaning, polishing, polishing, etc. of the floor surface. is there.

  BACKGROUND OF THE INVENTION Floor surface processing apparatuses for cleaning floor surfaces are used in commercial facilities such as department stores and restaurants, office buildings, factories, station platforms, and the like.

  When cleaning floors and road surfaces with relatively high flatness, such as office building entrances (hereinafter both referred to as floor surfaces), brushes and pads that rotate along the floor surface (hereinafter referred to as brushes). Etc.) are used.

  Conventionally, mainly three methods have been used for the arrangement of wheels, brushes, and the like in such a floor surface treatment apparatus. The first method is to arrange a brush or the like between the front wheel and the rear wheel. In the second method, a brush or the like is arranged in front of the front wheel or behind the rear wheel. In the third method, one front wheel is attached at a position shifted to the left or right with respect to the traveling direction of the vehicle body, and a brush or the like is shifted in the direction opposite to the front wheel.

  In order to support the car body stably, it is ideal to make the area of the triangle or quadrangle that the three or four wheels surround as large as possible, and to place the car body's center of gravity near the center of gravity of the triangle or quadrangle. .

  However, in the first method, the front wheel is present in front of the brush or the like, so the brush or the like cannot be brought close to the wall surface, and sufficient cleaning cannot be performed.

  In the second method, since the wheels approach the center of the vehicle body, the size of the device and the size of the brush must be reduced in order to make the area surrounded by each wheel the same as the first method. I had to.

  In the third method, since the position of the front wheel is shifted to the left or right with respect to the traveling direction, the center of gravity of the triangle surrounded by each wheel is biased to the left or right, and the operator operates with the bias in mind. Must. Also, in order to make the center of gravity of the triangle that the wheel surrounds and the center of gravity of the vehicle body coincide, it is necessary to shift the center of gravity of the vehicle body as well, but in order to shift the center of gravity of the vehicle body, it accounts for a large percentage of the total weight of the device Since it is necessary to shift the position of the battery, the degree of freedom of battery placement is reduced, and as a result, usable battery dimensions may be limited. In addition, in order to avoid contact with the brush, the front wheels cannot be made too large, so there is also a problem that it is difficult to ensure running stability.

  Therefore, as a fourth method, a method of arranging a wheel at a rotation center part such as a brush is considered. 10 (a) and 10 (b), the brush device of the floor cleaning machine of Patent Document 1 is provided with a belt cover 108 on the front surface of the main body 101 and on the lower side of the belt cover 108 for cleaning. Brush devices TL and TR are provided. A caster 109 is provided at the center of the brush devices TL and TR.

  By doing in this way, the arrangement | positioning of the wheel which stabilizes a vehicle body can be performed, without performing the enlargement of a vehicle body, or size reduction of a brush.

JP 2010-268828 A

  However, since the brush device TL, TR is attached to the entire periphery of the caster 109 in the brush device of the floor cleaning machine of Patent Document 1, when removing and attaching the brush, the caster 109 is largely floated from the floor surface, Needs to be hidden under the caster 109. This operation is particularly difficult when the floor cleaner is large.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a floor surface processing apparatus having a processing member such as a brush around a wheel so that the processing member can be easily attached and detached without significantly lifting the wheel from the floor surface. To do.

  The floor surface cleaning apparatus of the present invention includes a processing member that rotates along the floor surface, a connecting member that rotates integrally with the processing member, and has a through hole at the center of the rotation, and a through-hole of the connecting member In a floor surface processing apparatus comprising a wheel supported by a support member penetrating a hole, the processing member is characterized in that an inner peripheral surface and an outer peripheral surface are connected in a rotating surface.

  ADVANTAGE OF THE INVENTION According to this invention, in the floor surface processing apparatus which has processing members, such as a brush provided in the circumference | surroundings of a wheel, the removal | desorption of a processing member can be performed easily, without raising a wheel large.

It is sectional drawing of the side surface direction of the floor surface processing apparatus which concerns on the 1st Embodiment of this invention. 1 is a bottom view of a floor surface treatment apparatus according to a first embodiment of the present invention. It is the bottom view which showed the mode of the removal | desorption of the processing member in the floor surface processing apparatus which concerns on the 1st Embodiment of this invention. It is a bottom view of the floor surface processing apparatus which concerns on the 2nd Embodiment of this invention. In the floor surface processing apparatus which concerns on the 2nd Embodiment of this invention, it is the bottom view which showed the mode of removal | desorption of the processing member. It is the bottom view which showed the modification of the processing member of this invention. It is a bottom view of the floor surface processing apparatus which concerns on the 3rd Embodiment of this invention. It is sectional drawing of the side surface direction of the floor surface processing apparatus which concerns on the 3rd Embodiment of this invention. In the floor surface processing apparatus which concerns on the 3rd Embodiment of this invention, it is the bottom view which showed the mode of jack up. It is the figure which showed the brush apparatus of the floor cleaning machine of patent document 1.

(First embodiment)
FIG. 1 is a cross-sectional view of a central portion of a floor surface treatment apparatus 1 according to the first embodiment of the present invention. In the following description, the surface that performs processing such as cleaning and polishing using the floor surface processing apparatus 1 is expressed as a floor surface, but the floor surface is not limited to the floor surface of a building, and road It is assumed that the concept includes the road surface. Further, in this specification, the traveling direction A is the front side, and the left and right when facing the front side are the left side and the right side, respectively.

  The size of the vehicle body 10 of the floor surface processing apparatus 1 is 1200 mm in length, 600 mm in width, and 1000 mm in height. The vehicle body 10 is provided with one front wheel 13a at the front center and two rear wheels 13b at the rear side. The front wheel 13a is a free caster, and the rear wheel is a driving wheel driven by a motor (not shown), but is not limited thereto.

  Around the front wheel 13a, a brush 12 as a processing member that rotates substantially parallel to the floor surface F is provided. The brush 12 is fixed to the brush connecting member 15 by a brush fixing screw 16. The brush connection member 15 is a member having a through hole 15a at the center of rotation, and is connected to the brush drive gear 14a by a cylindrical hollow rotary shaft 14b larger than the through hole 15a.

  The front wheel 13a is disposed at the center of rotation of the brush 12, and is supported by a front wheel support member 14c that passes through the center of the cylindrical hollow rotating shaft 14b and the through hole 15a of the brush connection member 15. Further, the front wheel support member 14 c is fixed to the vehicle body 10.

  Therefore, when the brush drive gear 14a rotates, the hollow rotary shaft 14b, the brush connection member 15, and the brush 12 rotate with respect to the front wheel support member 14c.

  Next, a mechanism for driving the brush drive gear 14a will be described. The brush drive gear 14a is engaged with the pinion gear 11c. Further, the motor rotation shaft 11b of the motor 11a is attached to the pinion gear 11c. Therefore, when the motor 11a rotates, the rotation is transmitted through each gear, and finally the brush 12 rotates. On the other hand, since the front wheel 13a is supported by the front wheel support member 14c, it is not affected by this rotation.

  A DC motor with an output of 400 W was used as the motor 11a. The motor 11 a is driven by a battery 17 mounted on the vehicle body 10. The battery 17 uses two lead storage batteries having a voltage of 12 V and a capacity of 150 Ah. The dimensions of the two batteries are two, a length of 364 mm, a width of 505 mm, and a height of 258 mm. Moreover, each weight is 49 kg and it is 98 kg in total.

  A cleaning liquid tank 18a and a sewage tank 18b are disposed in front and above the battery 17, respectively. Each tank has a capacity of 40 liters. Further, a sewage collecting squeegee 19 is disposed behind the rear wheel 13b. As a result, the cleaning liquid supplied from the cleaning liquid tank 18a onto the floor surface F is collected by the sewage recovery squeegee 19 and collected in the sewage tank 18b.

  FIG. 2 is a bottom view of the floor surface processing apparatus 1. The front wheel 13a is disposed on the vehicle body center line C parallel to the traveling direction A. The diameter of the front wheel 13a is 100 mm, and the turning radius generated because the front wheel 13a is a free caster is 83 mm. The diameter of the rear wheel 13b is 250 mm. The brush 12 has a disk shape with a diameter of 508 mm (= 20 inches), and is provided with a U-shaped notch. The width of the gap formed by this notch is 200 mm in order to avoid interference with the front wheel 13a.

  Of the side surfaces of the brush 12 that are perpendicular to the rotation surface of the brush 12, the side surface closer to the front wheel 13a is referred to as an inner peripheral surface 12a, and the side surface far from the front wheel 13a is referred to as an outer peripheral surface 12b. Therefore, in the rotation surface of the brush 12, the inner peripheral surface 12a and the outer peripheral surface 12b are connected by a U-shaped notch.

  The battery 17 is arranged such that a position shifted slightly rearward from the center of gravity of the triangle in the region inside the triangle surrounded by the front wheel 13a and the two rear wheels 13b becomes the center of gravity. The width of the battery 17 is 505 mm, and the width of the vehicle body 10 is 600 mm. An exterior, a battery holding member, a frame, wiring, and the like are arranged in a gap of 47.5 mm each formed between the side surfaces. This is realized by arranging the center of gravity of the battery 17 on the vehicle body center line C.

  By doing so, the weight of the cleaning liquid filled in the cleaning liquid tank 18a and the sewage tank 18b and the weight of the motor 11a, the brush 12, the battery 17, etc., the center of gravity of the entire vehicle body 10 is a triangular shape surrounded by each wheel. Since it almost coincides with the center of gravity, the floor surface treatment apparatus 1 can be stabilized.

  The arrangement of the cleaning liquid tank 18a and the sewage tank 18b is not limited to that provided in front and rear of the vehicle body 10, and may be provided on the left and right or top and bottom of the vehicle body 10. When each tank is provided on the left and right or top and bottom, the center of gravity does not move in the front-rear direction even if the cleaning liquid moves from the cleaning liquid tank 18a to the sewage tank 18b.

  Here, a method of removing the brush 12 from the floor processing apparatus 1 will be described.

  First, by removing the brush fixing screw 16, the brush connecting member 15 and the brush 12 are separated. Since the brush 12 is provided with a U-shaped notch having a width of 200 mm as described above, the brush 12 is horizontally oriented in the direction opposite to the direction in which the U-shaped notch is opened, as shown in FIG. The brush 12 can be removed from the vehicle body 10 without interfering with the front wheel 13a.

  In addition, what is necessary is just to perform reverse operation, when attaching the brush 12. FIG. That is, the brush connecting member 15 is overlapped so that the notched portion of the brush 12 is inserted, and the brush fixing screw 16 is attached.

  Thus, in the floor surface processing apparatus which has processing members, such as a brush, in the circumference | surroundings of a wheel by providing a U-shaped notch in the brush 12, and connecting the inner peripheral surface and outer peripheral surface of the brush 12 in a rotating surface. The treatment member can be easily attached and detached without causing the wheel to largely float from the floor surface.

(Second Embodiment)
FIG. 4 is a bottom view of the floor surface treatment apparatus 2 according to the second embodiment of the present invention. Note that the cross-sectional view is the same as that of the first embodiment, and is omitted.

  In the floor surface processing apparatus 2 of the present embodiment, the brush is constituted by two brush modules 22a.

  When the brush fixing screw 16 is removed, the brush connecting member 15 and the two brush modules 22a are separated. The two brush modules 22a can also be separated from each other. As described in the first embodiment, each brush module 22a has an inner peripheral surface 12a surrounding the front wheel 13a and an outer outer peripheral surface 12b in a portion where the brush modules 22a are in contact with each other in the rotation surface. Are connected.

  Therefore, as shown in FIG. 5, by moving the brush module 22a in the horizontal direction, the brush module 22a can be removed from the vehicle body 10 without interfering with the front wheel 13a. Note that when attaching the brush module 22a, as described in the first embodiment, a procedure reverse to that for removing the brush module 22a may be performed.

  Thus, in the floor surface processing apparatus 2, since the brush is comprised by several brush modules with which the internal peripheral surface and the outer peripheral surface were connected in the rotation surface, it has processing members, such as a brush, around a wheel. In the floor surface processing apparatus, the processing members can be easily attached and detached without causing the wheels to float greatly from the floor surface.

  Moreover, since it is not necessary to make a big clearance gap in the rotating surface of the brush 12, the cleaning area of the brush 12 can be maximized.

  In the present embodiment, the brush is described as being configured by two brush modules, but may be configured by three or more brush modules.

  Further, instead of the two brush modules 22a, a single brush module and a pad module having a microfiber mop on the surface may be used.

  In that case, it is not necessary to provide the cleaning liquid tank 18a, the sewage tank 18b, and the sewage recovery squeegee 19 described in the first embodiment, and the cleaning with the brush module and the wiping with the mop module can be performed simultaneously.

  Thus, by making each module attached to the brush connecting member 15 different, in the floor surface processing apparatus having a processing member such as a brush around the wheel, the processing member does not float the wheel greatly from the floor surface. The cleaning with the brush and the polishing with the pad can be performed at the same time.

  FIG. 6 shows a modification of the processing member of the present invention.

  The brush 22b in FIG. 6 (a) is an integral member, but is cut at two places, and a hinge is provided at one of the cuts. Therefore, the inner peripheral surface and the outer peripheral surface are connected in the rotation surface, and a gap for allowing the front wheel 13a to pass therethrough can be formed at the time of detachment.

  Further, the brush 22c in FIG. 6B is made of an elastic member such as rubber, and is partially cut. Therefore, the inner peripheral surface and the outer peripheral surface are connected to each other, and a gap for passing the front wheel 13a at the time of detachment can be widened.

  Similarly to the brushes and brush modules described in the first and second embodiments, such a brush 22b and brush 22c can also be used in a floor surface processing apparatus having a processing member such as a brush around the wheel. The processing member can be easily attached and detached without significantly floating from the surface.

(Third embodiment)
FIG. 7 is a bottom view of the floor surface treatment apparatus 3 according to the third embodiment. The floor surface processing device 3 is provided with two jack-up devices 33 in front of the center of gravity of the vehicle body 10 and in the left and right side directions with respect to the traveling direction A.

  FIG. 8 is a cross-sectional view of the floor surface treatment apparatus 3. The two jack-up devices 33 are not shown on this cross section, and are drawn with dotted lines in the figure.

  Here, when attaching and detaching the brush 12, as shown in FIG. 9, the two jack-up devices 33 are pressed against the floor surface F so that the brush 12 is lifted from the floor surface F by about 10 mm. When the brush fixing screw 16 is removed in this state, the brush connecting member 15 and the brush 12 are separated. Since the brush 12 is slightly lifted from the floor surface F, the brush 12 can be attached and detached without rubbing the brush 12 and the floor surface F. Therefore, in the floor surface processing apparatus having a processing member such as a brush around the wheel, the processing member can be easily attached and detached without causing the wheel to largely float from the floor surface.

  The height at which the jack-up device 33 lifts the front wheel 13a and the brush 12 is, for example, 10 mm, but is not limited thereto. However, as described in the first and second embodiments, since the brush 12 is detachable in the horizontal direction, it is not necessary to jack up until the brush 12 can pass under the front wheel 13a.

  Further, the position of the jack-up device 33 is not limited to the above-described position, and may be provided adjacent to the front wheel 13a at a position surrounded by the brush 12, for example. Furthermore, the front wheel 13a itself may have a jack-up function.

  In the first to third embodiments, the floor surface processing apparatus having one front wheel 13a and two rear wheels 13b has been described, but the number of front wheels and rear wheels is not limited thereto. The brush 12 is not limited to being provided only on the front wheels, and may be provided on each of the plurality of wheels, or may be provided so as to surround the plurality of wheels.

A traveling direction, C vehicle body center line, F floor surface 1 floor surface processing device, 2 floor surface processing device, 3 floor surface processing device 10 vehicle body 11a motor, 11b motor rotating shaft, 11c pinion gear 12 brush, 12a inner peripheral surface, 12b Outer peripheral surface 13a Front wheel, 13b Rear wheel 14a Brush drive gear, 14b Hollow rotating shaft, 14c Front wheel support member 15 Brush connection member, 15a Through hole 16 Brush fixing screw 17 Battery 18a Cleaning liquid tank, 18b Sewage tank, 19 Squeegee for wastewater recovery 22a brush module, 22b brush, 22c brush 33 jack-up device

Claims (3)

A processing member that rotates along the floor surface;
A connecting member connected to the processing member and integrally rotating, and having a through-hole at the center of the rotation;
A wheel supported by a support member penetrating the through hole of the connection member;
In a floor surface processing apparatus comprising:
The processing member is a floor surface processing apparatus, wherein an inner peripheral surface and an outer peripheral surface are connected to each other in a rotation plane.   The floor processing apparatus according to claim 1, wherein the processing member includes at least two separable members. The floor surface processing apparatus according to claim 1, wherein the floor surface processing apparatus includes a jack-up device that lifts the processing member from the floor surface.