JP2542554Y2 - Floor surface treatment equipment and related technologies - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a floor or the like in which a connecting portion of a rotary contact processing member for processing a floor surface, a road surface, and the like and a rotary driving force transmitting portion of a rotary driving device are detachably configured. The present invention relates to a processing device, a rotation driving device thereof, and a rotation contact processing member.

[0002]

2. Description of the Related Art Conventionally, a floor surface in which a connecting portion of a rotary contact processing member such as a floor polishing pad and a rotary driving force transmitting portion of a rotary driving device for driving the same are detachably mounted. In the equal processing apparatus, the rotation driving force transmission unit and the connection unit of the rotation contact processing member are coaxially connected and fixed using, for example, a plurality of clasps or the like, and are removed by releasing the coaxial connection. However, in such a conventional apparatus, it takes time to attach and detach the main body to and from the floor polishing pad and the like due to the fixing means. Therefore, the attaching and detaching is frequently repeated according to the target surface, the type of processing, or the finishing stage. In such a case, it is particularly troublesome, and since the rotation axis of the rotary contact processing member is fixed to the rotary driving force transmitting portion, it can be said that it has good responsiveness to changes in inclination or unevenness of the floor surface or the like. In addition, it was a cause of uneven processing.

[0003] The present invention has been made in view of the above-mentioned problems in the prior art, and has as its object to allow easy attachment and detachment of a main body and a floor polishing pad and the like. It is an object of the present invention to provide a floor surface processing apparatus, a rotation driving device, and a rotation contact processing member that are highly responsive to changes in the inclination or unevenness of the floor surface.

[0004]

In order to achieve the above-mentioned object, the present invention provides a floor surface treatment apparatus for connecting a rotary contact processing member for processing a floor surface, a road surface, and the like, and a rotation of a rotation drive device. A processing device such as a floor, wherein a driving force transmission unit is detachably configured, wherein the rotational driving force transmission unit has a rotationally symmetric convex curved surface and an n-fold rotationally symmetric convex downward or obliquely downward. The connector has n (n is an integer of 2 or more) protrusions protruding outward in the radial direction. The connection portion is open upward and has a downward or obliquely downward protrusion. It has a rotationally symmetric concave curved surface and n holding portions provided in an n-fold rotationally symmetric shape, wherein the holding portion is provided with a drop-off prevention portion on an upper side, and has at least a part of the protrusion in the vertical direction. And a receiving part for receiving the side of the projection in the forward direction of rotation in the circumferential direction. The circumferential reverse direction side of the housing portion is opened, and in a state where the axial direction of the rotational driving force transmitting portion and the connecting portion are close to and coincide with each other, the concave curved surface can support the convex curved surface and the holding portion is It is configured to hold the protrusion.

[0005] The connecting portion may have a spiral slope for guiding the protrusion from the upper side of each of the falling-off preventing portions to another holding portion on the normal rotation direction side. Further, in order to achieve the above object, the rotation drive device of the present invention is:
A rotationally symmetric convex surface convex downward or obliquely downward and n pieces (n is 2) protruding radially outward provided in an n-fold rotational symmetry.
Is an integer greater than or equal to. ) Is provided. Further, the rotary contact processing member of the present invention has an opening upward, a concave curved surface having a downwardly or obliquely downwardly convex rotationally symmetric shape, and n holding portions provided in an nth rotationally symmetrical shape, The holding section has a receiving section provided with a drop-off preventing section on the upper side and a receiving section, and has a connecting section in which the circumferential reverse direction side of the receiving section is opened.

[0006]

The rotational driving force transmitting portion of the rotary driving device is fitted from above into the upwardly open connecting portion of the rotary contact processing member. When the fitting is performed in a state where the center and the axial direction of the connecting portion and the rotational driving force transmitting portion are aligned or close to each other, and the rotational driving force transmitting portion is rotated in the forward direction relative to the connecting portion, The n projections radially outwardly protruding n times rotationally symmetrically are respectively held by the n holding parts provided n times rotationally symmetrically, and the convex curved surface is supported by the concave curved surface. Is done. At least a part of the projection is accommodated from the opened circumferential reverse direction side of the holding portion of the holding portion, and the circumferential normal rotation direction side of the projection is received by the receiving portion of the holding portion, and the upper side of the housing portion Is provided, the rotation driving force transmission unit rotates in the forward direction around the axis in this state, so that the connection between the rotation driving force transmission unit and the connection unit is maintained. The rotation contact processing member is driven to rotate forward.

[0007] The convex curved surface and the concave curved surface are rotationally symmetrical, and the accommodating portion accommodates at least a part of the protruding portion while having a margin in the vertical direction. Even if the axial directions of the two do not completely coincide with each other and the other is inclined to some extent in an arbitrary direction, the convex curved surface can be supported by the concave curved surface and the projection is held by the holding portion, and the rotational driving force transmission portion It does not affect the connection between the motor and the connecting portion and the normal rotation drive of the rotary contact processing member. If there is a helical slope that guides the protrusion from the upper side of each drop prevention part of the connecting part toward another holding part on the normal rotation direction side, the rotational driving force transmitting part is fitted to the connecting part from above, When rotating the rotational driving force transmission unit in the forward direction relative to the coupling unit to couple the rotational driving force transmission unit and the coupling unit, the protrusion is guided to the holding unit along a spiral slope, Will be retained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. In each of the drawings, as one embodiment of the present invention, the floor is cleaned with the rotating pad while spraying a detergent on the center of the rotating pad at the front portion, and a suction device disposed behind the apparatus body. Floor cleaner that sucks used detergent and the like. 1 is a schematic front view of the entire apparatus, FIG. 2 is a schematic plan view thereof, FIG. 3 is a schematic right side view thereof, and FIG. 4 and FIG.

The movable support table 10 is supported by the wheels 12 and the universal wheels 14 so as to be movable on the floor surface, that is, to be able to move back and forth and to be able to change directions by the universal wheels 14. A column 16 is erected on both sides of a front portion of the movable support table 10, and a horizontal support shaft 18 is rotatably supported on an upper end of the column 16. A base of an operation lever 19 is fixed to one end (the upper end in FIG. 2) of the horizontal support shaft 18.
Reference numeral 20 denotes a handle located at an end of the operation lever 19.
The horizontal support shaft 18 is rotated by moving the handle 20 up and down. Reference numeral 21 denotes a support standing upright on the movable support base 10, 2
2 and 23 are holding members for holding the operation lever 19 at the upper position and the lower position, respectively.

Reference numeral 24 denotes a support frame. The supporting frame 24 includes connecting columns 26 erected on both sides of the rear end, and
The end is fixed to the connecting column 26, and the base is the horizontal support shaft 1.
The bearing unit 28 is rotatably supported by the bearing 8 and is supported by the movable support base 10 so as to be vertically swingable. 30 is a guide column erected on the support frame 24,
A connecting member 32 connects the upper ends of the guide columns 30. The distal end of the operation lever 34 is inserted below the connecting member 32 between the two guide columns 30. The base of the operation lever 34 is fixed to the horizontal support shaft 18 and swings up and down according to the rotation of the horizontal support shaft 18.

Reference numeral 36 denotes a compression coil spring which is fitted on both guide columns 30. The lower end of the compression coil spring 36 contacts the upper surface of the support frame 24, and the upper end of the compression coil spring 36 is located below the tip of the operation lever 34. Reference numeral 38 denotes a drive motor supported on the support frame 24. A drive pulley (not shown) is fixed to an output shaft (not shown) of the drive motor 38, and a drive belt 41 is stretched over the drive pulley and the driven pulley 40. The rotation and stop of the drive motor 38 are not only performed by various known ordinary switches 37, but also in a normally open state, the circuit is closed only when pressed, and the circuit is immediately released by pressing, for example, by a spring or electronic means. Is also operated by the inching switch 39 that opens. As another example of the inching means, a switch is set to 1 using a timer circuit or the like.
For example, there is a configuration in which the circuit is closed for a fixed short time when pressed.

Reference numeral 42 denotes a rotating pad (rotating contact processing member) for cleaning the floor, which has a circular shape in a plane. The rotational driving force transmitting portion (described later) coupled to the driven pulley 40 is
The rotating pad 42 is driven to rotate by being connected to the connecting portion 44 fixed to the upper center of the 2. It goes without saying that various other known means can be used as the driving means. As the rotating contact processing member, various members such as a rotating brush can be applied in addition to the rotating pad. 46
Are support members suspended from the support frame 24, 48
Is a swing member which is swingably supported by the support member 46, and 50 is a swing shaft thereof. A wheel 52 (low friction contact means) is rotatably provided at an intermediate portion of the swing member 48, and a weight 54 is fixed to an end of the swing member 48. 55 is a rotation axis of the wheel 52. The weight 54 presses the wheel 52 against the upper surface of the rotating pad 42, and applies a substantially downward load to the rotating pad 42 at the contact point. 56 is a rotating pad 4
When exchanging two, the lower end portion 56 bent in a hook shape
A receiving member for receiving the weight 54 in FIG.

The direction of the rotation axis of the rotation pad 42 is movable as described later. That is, it can be tilted to an arbitrary direction to some extent. Therefore, the support frame 2 is
By applying a downward load due to the weight 54 or the like to the rotating pad 42 at a substantially constant position with respect to 4, the rotating axis of the rotating pad 42 is maintained in a slightly inclined state toward the loading position with respect to the floor surface. The rotating pad 42 can be rotated. Then, the floor and the rotating pad 4
Due to the imbalance in the frictional force between the two, a driving force is generated in the illustrated example in the forward direction. Therefore, for example, even when the apparatus is heavy, it is easy to move the apparatus in a predetermined direction while performing processing on a floor surface or the like. Further, since the movable rotation axis of the rotating pad 42 is slightly inclined by the loading of the load, the slightly inclined state of the rotating axis is maintained to some extent even on a floor surface having irregularities or a change in inclination. can do. Therefore, the ease of movement is not so hindered by such a change in the floor surface or the like.

The position for applying the downward load can be made variable for the entire apparatus by moving the position where the load is applied to the rotary pad 42, or by appropriately selecting a plurality of loading means. If this is the case, the device can be easily moved in the required direction. Furthermore, the inclination of the rotation axis can be realized, for example, by maintaining the rotation axis itself in an inclined state. Also in this case, a driving force in a predetermined direction is obtained. 58 is a rubber plate for preventing washing water or the like from being scattered backward by the rotating pad 42, and 60 is a support frame 2 for covering the rotating pad 42 and its driving system.
4 is a movable cover attached. When the handle 20 and the operation lever 19 are at the intermediate positions shown by solid lines in FIG. 1, the rotary pad 42 is pressed against the floor surface by the weight of the rotary pad 42, the drive system connected thereabove, and the movable cover 60.

When the handle 20 is lifted and the operating lever 19 is held by the holding member 22, the operating lever 34 swings downward as shown in FIG. 4 to press the compression coil spring 36 downward. Due to the elastic force generated by the compression of the compression coil spring 36, the rotary pad 42 is elastically overpressure-contacted to the floor via the support frame 24 and the like. The reaction force is supported on the movable support 10 via the horizontal support shaft 18 and the holding member 22. Therefore, depending on the processing mode and the material of the floor surface, for example, it is possible to increase the processing efficiency such as dirt removal by overpressure welding, or to appropriately perform processing so as to protect the floor surface without applying overpressure. is there. In addition, since the rotary pad 42 can move up and down while maintaining the pressed state in conformity with the inclination and unevenness of the floor surface or the like, the effect of preventing uneven processing can be exhibited.

By providing a plurality of stages at a position where the operating lever 19 is held upward, for example, the magnitude of the pressing force for over-pressing the rotating pad 42 to the floor surface via the compression coil spring 36 can be reduced. If the degree of deformation is changed to a plurality of stages by switching the degree of deformation, the magnitude of the overpressure contact force can be appropriately selected according to the mode of processing, and the processing can be performed more effectively. Next, handle 20
When the operating lever 19 is held by the holding member 23 by pressing down, the operating lever 34 swings upward as shown in FIG. 5, and the support frame 24, the rotating pad 42, The state where the movable cover 60 and the like are lifted is maintained. In this state, replacement of the rotary pad 42 and the like can be easily performed.

Reference numeral 62 denotes a connecting member having an L-shaped side surface. The upper end of the vertical portion of the connecting member 62 is connected to the movable support base 10 via a rotating shaft 64, and the rear end of the horizontal portion of the connecting member 62 is connected to a sucker 68 via a rotating shaft 66. Have been. Further, a tension coil spring 72 is mounted between the front end of the lower end of the vertical portion of the connecting member 62 and the projection 70 hanging down from the movable support base 10 in front of the vertical portion, and the tension coil spring 72 pulls forward. By the force, a clockwise moment in FIG. 1 is applied to the connecting member 62 to improve the followability of the suction device 68 with respect to the floor surface. FIG. 6 is a bottom view of a main part of the blotter 68, and FIGS. 7 and 8 are schematic cross-sectional views of the blotter 68, respectively. 74 is a top plate, and 76 is a suction port member fixed to the lower surface of the top plate 74. The suction port member 76 has a horizontally long suction port 78 extending between both ends of the suction port 74. Reference numeral 76a denotes a hanging portion that forms the outer wall of the suction port 78. At the center of the top plate 74, a suction pipe connecting portion 80 is provided to protrude upward, and the inside of the suction pipe connecting portion 80 is formed in a suction hole 82 communicating with the suction port 78. 74a is a top plate base.

A support plate 84, a front blade 86, a support plate 88, and a pressing plate 90 are provided on the front surface of the front hanging portion 76a so as to be stacked forward in this order. The lower end of the front blade 86 constitutes a contact surface edge, and substantially contacts the floor surface 92 over its entire length. The support plates 84 and 88 have a shorter vertical length than the front blade 86, and their lower ends are located above the floor surface 92. The support plates 84 and 88 are in contact with the front and rear surfaces of the front blade 86 to prevent the front blade 86 from being excessively bent.
A supporting force for supporting the blotter 68 is generated above.
The lower ends of the support plates 84 and 88 are positioned above the floor surface 92 because the lower end of the front blade 86 is easily bent by moving back and forth while the lower end of the front blade 86 is in contact with the floor surface 92. is there.

On the rear surface of the rear hanging portion 76a, a rear blade 94, a support plate 96, and a pressing plate 98 are provided in this order in a rearward direction. The top plate 74, the suction port member 76, the holding plate 90, and the holding plate 98 are made of a rigid material, and the support plate 84, the front blade 86, the support plate 88, the rear blade 94, and the support plate 96 are formed of an elastic surface. It is made of a shape material. Specifically, synthetic rubber,
Examples include plate-like materials such as natural rubber, plastic, natural leather, and synthetic leather. FIG. 9 is a partially enlarged bottom view of the front blade 86. Substrate part 1 in front blade 86
A large number of ridges 103 are provided at equal intervals on the front side of the upper and lower portions 01, and between the adjacent ridges 103, a number of concave grooves 105 are formed over the upper and lower ends. On the rear side of the substrate portion 107 of the rear blade 94, a large number of ridges 109 are provided at equal intervals over the upper and lower ends.
Between 09, a number of concave grooves 111 are formed over the upper and lower ends.

The bumpers 113 provided on both ends of the top plate 74 of the sucker 68 are bumpers. Reference numeral 115 shown in FIG. 3 is a weight, and 117 is a circular cup-shaped buffer member that covers the weight 115, and is supported by a bolt 127 so as to be rotatable with respect to the top plate 74. The buffer members 117 project forward and backward and outward at both ends of the top plate 74, thereby exhibiting a buffering action between the wall surface and the suction device 68. Front blade 86 and rear blade 94
If a harder material is used to suppress abrasion, sufficient weight may not be obtained or it may not be possible to contact the floor surface 92 over the entire length. Therefore, the weight 115 prevents such a problem. In addition, 128 is the support plate 9
6 are provided at intervals at the lower edge of the support plate 6, and the support plates 84 and 88 are similarly provided with cutouts. The connecting member 62 can also be configured to be swingable in a horizontal plane about its vertical portion so that the position of the sucker 68 can be adapted to the surrounding situation.

As shown in FIG. 7, by moving the blotter 68 forward, the front blade 86 moves the floor 92
Deflects rearward due to the friction with the floor 9
2 and a gap is formed. By performing suction through the suction hole 82, an object to be sucked such as a detergent on the floor surface 92 and / or external air passes through the space through the space.
It is sucked toward 8. Therefore, during the forward movement, the used detergent on the floor surface 92 is sucked through the gap formed by the concave groove 105 of the front blade 86. The material to be sucked is not limited to a fluid such as a liquid or a gas. Solids such as granules are also included. The rear blade 94 deflects rearward due to friction with the floor surface 92, and then the substrate portion 10 of the blade 94
7 and the floor surface 92 are substantially in close contact with each other. Therefore, at the time of forward movement, the used detergent taken in between the rear blade 94 and the front blade 86 through the gap formed by the concave groove 105 of the front blade 86 is prevented from escaping from between the rear blade 94 and the floor surface 92. The residue of the blotted material is prevented.

As shown in FIG. 8, when the suction device 68 is moved backward, the rear blade 94 is bent forward by friction with the floor surface 92, and the concave groove 111 forms a gap between the suction blade 68 and the floor surface 92. Form. By performing suction through the suction hole 82, an object to be sucked such as a detergent on the floor surface 92 and / or external air is sucked toward the suction port 78 through the gap. Therefore, during the backward movement, the used detergent on the floor surface 92 is sucked through the gap formed by the concave groove 111 of the rear blade portion. Further, the front blade 86 bends forward due to friction with the floor surface 92, and the space between the substrate portion 101 of the front blade 86 and the floor surface 92 becomes substantially close. Therefore, when moving rearward, the material to be sucked in between the rear blade 94 and the front blade 86 is removed by the front blade 86 and the floor surface 9.
2 is prevented from escaping. 129 is a storage battery as an energy source. Reference numeral 131 denotes a mounting table on which the storage battery 129 is mounted, which is movably supported on the movable support table 10 by bearings 133. 135
Is a handle of the mounting table 131.

Reference numeral 137 denotes a track plate for pulling out the mounting table 131 to the side of the apparatus as indicated by an arrow.
It is a connecting plate for connecting track plates. The track plate 137 is normally held in a state of being flipped up vertically as shown by a solid line in FIGS.
At the time of maintenance of the roller 29, as shown by a two-dot chain line in FIGS. 2 and 3, it is rotated 90 degrees about the hinge portion 141 so as to protrude horizontally to the side of the device, and the track plate 137. The legs 143 provided so as to be freely foldable on the outer side of the front panel are made to protrude to support the end of the track plate 137. By pulling out the mounting table 131 onto the track plate 137 in this manner, maintenance can be easily performed even when the weight of the storage battery 129 is large. Reference numeral 144 denotes a stopper for the mounting table 131.
145 is a suction pipe connected to the suction pipe connecting portion 80, 14
Reference numeral 7 denotes a used detergent recovery tank to which the suction pipe 145 is connected, and 149 denotes a suction force generator. 151 is a detergent tank, and 153 is a detergent supply pipe. The suction pipe 145 and the detergent supply pipe 153 are formed of a flexible material.

157 is a main body cover, and 159 is a main body handle. The used detergent collection tank 147, the suction force generator 149, the detergent tank 151, and the main body cover 157 are supported on the movable support base 10. The rotating pad 42 and the movable cover 60 protrude forward of the main body cover 157, and the rotating pad 42 is eccentrically provided to the right in FIG. 3 (upward in FIG. 2). Body cover 15 in FIG.
It extends to the right of 7. Reference numeral 161 denotes a right protruding portion. As shown in FIG. 3, the lower portion of the support frame 24 cannot be visually recognized from the rear device operator, but the rotation center of the rotary pad 42 is eccentric to the right from the center of the width of the device main body. Since the position of the protruding portion of the rotating pad 42 on the right side of the apparatus main body can be visually recognized,
The apparatus operator can easily grasp the processing status by the rotary pad 42, and the processing operation can be performed smoothly and reliably.

Further, since the rotary pad 42 protrudes from the apparatus main body, not on both sides, but on one side, the size of the rotary pad 42 is avoided, the torque required for the drive motor 38 is suppressed, and the rotary pad 42 protrudes forward of the apparatus main body. Therefore, it is adaptable to use in complicated places and near walls. FIG. 10 is a fragmentary cross-sectional view of the rotary pad 42 and its peripheral portion. 163 is a mortar-shaped recess provided in the support frame 24. A hollow fixed shaft 165 is connected below the center of the mortar-shaped recess 163, and a detergent introduction pipe 167 is inserted into the hollow fixed shaft 165 from the center bottom of the mortar-shaped recess 163, and the detergent supply pipe 153 is connected. The upper end of the detergent introduction pipe 167 protrudes upward from the central bottom of the mortar-shaped recess 163. Therefore, the detergent supply pipe 15
The detergent introduced into the hollow fixed shaft 165 through the detergent introduction pipe 167 through the detergent introduction pipe 167 passes through the lower opening 165 a through the rotating pad 4.
2 on the floor in the center.

Reference numeral 169 denotes a rotational driving force transmitting portion rotatably supported on the outer peripheral side of the hollow fixed shaft 165 via ball bearings 171 and 173. The driven pulley 40 is fixed to the upper side of the rotational driving force transmission unit 169 by a bolt 174. The driven pulley 40 has a tray shape with an opening at the center bottom, and a drive belt 41 is wound around the outer peripheral surface thereof. When the drive belt 41 is circulated by the drive motor 38, the rotational driving force transmission unit 169 rotates around the hollow fixed shaft 165 integrally with the driven pulley 40.
FIG. 11 is a plan view of the rotational driving force transmission unit 169, FIG. 12 is a side view thereof, and FIG. 13 is a view showing the XIII-O-XIII in FIG.
It is a line sectional view. The rotational driving force transmitting section 169 has a cup shape with an open bottom, and a lower outer peripheral surface is formed as a rotationally symmetric convex curved surface 175 that is convex obliquely downward. Reference numeral 177 denotes a projection having an elliptical cross section which projects radially outward from the outer peripheral surface of the upper and lower middle portion. The protrusion 177 is provided in a two-fold rotational symmetry. Of course, there may be a component other than the radially outward component, for example, a component in the vertical direction, in the protruding direction of the protrusion 177. The connecting portion 44 includes an inner shell 179 and an outer shell 181.

FIG. 14 is a plan view of the inner shell portion 179, and FIG.
Is a side view thereof, FIG. 16 is a rear view thereof, and FIG.
FIG. 7 is a sectional view taken along line XVII-XVII in FIG. The inner shell portion 179 made of a soft material such as a synthetic resin has a bowl-like shape in which the inner peripheral surface of the peripheral wall 180 is formed by a rotationally symmetric concave curved surface 183 projecting obliquely downward. ing. 18
5 is a receiving projection projected outwardly in a two-fold rotational symmetry, 1
Reference numeral 87 denotes a receiving surface for receiving the side of the projection 177 in the circumferential normal rotation direction. On the back side of the receiving surface 187 of the receiving projection 185, a plurality of concave grooves 189 are provided in the vertical direction. 18 is a plan view of the outer shell portion 181, FIG. 19 is a side view thereof, FIG. 20 is a sectional view taken along line XX-XX in FIG.
1 is a sectional view taken along line XXI-XXI in FIG. 18, and FIG.
FIG. 19 is a sectional view taken along line XXII-O-XXII in FIG. 18.

Outer shell 181 of aluminum die casting
Is a cylindrical portion 193 having a flange portion 191 on the outer peripheral side.
And a bowl-shaped portion 195 having a bottom opening located on the inner side at a radial distance from the cylindrical portion 193. The lower inner peripheral surface of the bowl-shaped portion 195 has a rotationally symmetric concave curved surface 197 that is diagonally downwardly convex.
It is constituted by. Reference numeral 199 denotes a falling-off prevention portion that protrudes inward from a part of the upper end of the cylindrical portion 193, and is provided twice in a rotationally symmetrical manner. Each drop prevention part 19
Below 9 is a storage section 200. The circumferential direction reverse rotation direction side 200a and the radial direction inner side 200b of the storage part 200 are open, and the circumferential direction normal rotation direction side 200c is closed. 20
Reference numeral 2 denotes a spiral slope provided from the upper surface of each of the falling-off preventing portions 199 toward the accommodation portion 200 on the normal rotation direction side. Reference numeral 204 denotes a fitting groove for fitting the outer portion of the receiving protrusion 185. FIG. 23 is a plan view of the connecting portion 44 in which the inner shell portion 179 is fitted inside the outer shell portion 181.
4 is a sectional view taken along line XXIV-XXIV in FIG.

The connecting portion 44 is opened upward, and the outer shell portion 181 is formed.
The peripheral wall 180 of the inner shell part 179 is fitted inside the bowl-shaped part 195 in FIG. A receiving protrusion 185 is fitted on the circumferentially forward rotation direction side 200 c of the housing portion 200, and an outer portion of the receiving protrusion 185 is fitted on 204. The receiving projection 185, the falling-off preventing section 199, and the housing section 200 constitute a holding section. In this state, the inner shell 17
9 is set to be longer than the vertical length of the protrusion 177. By pushing down the handle 20 and holding the operation lever 19 on the holding member 23, the rotation driving force transmission unit 169 is raised,
When the connecting portion 44 of the rotary pad 42 is positioned under the connecting portion 44 and the rotational driving force transmitting portion 169 is fitted to the connecting portion 44 from above, the fitting is performed between the connecting portion 44 and the center of the rotational driving force transmitting portion 169. By pressing the inching switch 39 for a short time, the rotational driving force transmitting section 169 is rotated in the forward direction with respect to the connecting section 44 for a short time by pressing the inching switch 39 for a short time. And the two protrusions 177 provided twice rotationally symmetrically are respectively held by the holding portions 185, the drop prevention parts 199, and the storage parts 200 provided two times rotationally symmetrically, FIG.
The convex curved surface 175 is supported by the concave curved surface 183 as shown in FIG. In this manner, the rotational driving force transmitting section 169 and the rotational pad 42 are connected. Of course, it is also possible to connect the rotary driving force transmitting section 169 by continuously rotating it forward.

The protrusion 177 is received from the open side 200a of the housing 200 in the open circumferential reverse direction, and the side of the protrusion 177 in the forward circumferential direction is received by the receiving surface 187. Since the falling-off preventing portion 199 is provided, the rotation driving force transmission portion 169 rotates in the normal rotation direction (counterclockwise in FIG. 23) about its axis in that state, so that the rotation driving force transmission portion is rotated. 1
The connection between the rotary pad 42 and the connecting portion 44 is maintained.
Is driven forward. The convex curved surface 175 and the concave curved surface 183 are rotationally symmetrical, and the housing portion 200 accommodates the protrusion 177 while having a margin in the vertical direction. Even when the axial directions are not completely coincident with each other and the other side is inclined to an arbitrary direction to some extent, the convex curved surface 175 can be supported by the concave curved surface 183 and the projection 177 is held by the holding portion, and the rotational drive is performed. It does not affect the connection between the force transmission unit 169 and the connection unit 44 and the normal rotation drive of the rotary pad 42. Therefore, the connection can be easily performed, and the apparatus is highly responsive to changes in the inclination and unevenness of the floor surface and the like.

Since the spiral inclined surface 202 is provided from the upper surface of each of the falling-off preventing portions 199 in the connecting portion 44 toward the accommodation portion 200 on the normal rotation direction side, the rotational driving force transmitting portion 169 is provided on the connecting portion 44 upward. When the rotation driving force transmission unit 169 is rotated relative to the connection unit 44 in the normal rotation direction to connect the rotation driving force transmission unit 169 and the connection unit 44, the projection 177 has a spiral shape. It is guided to the accommodation part 200 along the slope 202. Therefore, the connection can be performed more smoothly. By pushing down the handle 20 and holding the operation lever 19 on the holding member 23, the rotary driving force transmitting unit 169 is raised so that the rotary pad 42 is positioned above the floor surface, road surface, etc., and the inching switch 39 is turned on for a short time. When the rotary driving force transmitting unit 169 is rotated in the forward direction for a short time by only pressing, the inertia force acting on the rotating pad 42 that has started to rotate due to the deceleration of the rotating driving force transmitting unit 169 that is stopped, Rotational driving force transmission unit 169
The two holding portions of the rotary pad 42 drop off in the normal rotation direction from the two projections 177 of the above, and the rotary pad 42 can be easily removed from the rotary driving force transmitting portion 169. In addition, the rotation of the rotary driving force transmission unit 169 in the normal rotation direction for only a short time can be performed using a normal switch 37 or depending on the mode of the switch. Also,
By applying a downward load due to the weight 54 or the like to the rotary pad 42 at a substantially constant position with respect to the support frame 24 by the wheels 52, the rotation axis of the rotary pad 42 is moved to the rotation axis of the rotary driving force transmission unit 169. On the other hand, when the inclining switch 39 is pressed for a short period of time while maintaining the slightly inclined state, and the rotational driving force transmitting unit 169 is rotated in the forward direction for a short period of time, the displacement of the rotation axis causes the projection 177 to move. Of the holding unit from the motor and the rotation driving force transmission unit 1
Removal of the rotating pad 42 from 69 becomes easier. The rotating pad 42 has ball bearings 171 and 173 with respect to a hollow fixed shaft 165 fixed to the support frame 24.
(And the rotatable driving force transmitting portion 169 and the connecting portion 44), so that the driving motor 38,
The support belt 24 is driven to rotate by the drive belt 41 and the driven pulley 40 and the like. And the rotating pad 42
While rotating, the detergent from the detergent tank 151 is supplied from the upper opening of the hollow fixed shaft 165 kept stationary relative to the support frame 24 via the detergent supply pipe 153 and the detergent introduction pipe 167, The lower opening 165a
Can be spread on the floor surface at the center of the rotating pad 42 and washed by the rotating pad 42.

Since the periphery of the detergent introduction tube 167 for introducing the detergent into the hollow fixed shaft 165 is surrounded by the mortar-shaped recess 163, the detergent leaking from the detergent introduction tube 167 or the peripheral portion thereof is crushed. This prevents the detergent from being inadvertently scattered and contaminating peripheral parts other than the apparatus, and adversely affecting the mechanism of the apparatus. In addition, in addition to the embodiment described above,
It goes without saying that various applications and modifications can be made without departing from the gist of the present invention.

[0033]

[Effect of the Invention] In the floor surface treatment device, the rotary drive device, and the rotary contact processing member of the present invention, the rotational drive force transmitting portion is fitted to the connecting portion from above, and the connecting portion is rotated in the normal rotation direction. When the rotational driving force transmitting unit is rotated, the rotational driving force transmitting unit and the connecting unit are connected even when the axial directions of the connecting unit and the rotational driving force transmitting unit do not completely coincide with each other and the other is inclined to some extent in an arbitrary direction with respect to one. Since the axial misalignment does not affect the forward rotation of the rotary contact processing member,
The connection can be easily performed, and it is highly responsive to changes in the inclination and unevenness of the floor surface and the like. Further, when the connecting portion has a spiral slope for guiding the projection from the upper side of each of the drop prevention portions to another holding portion on the normal rotation direction side, the projection is formed on the holding portion along the spiral slope. Since the guide member is guided and held by the holding portion, the connection between the rotational driving force transmitting portion and the connecting portion can be performed more smoothly.

[Brief description of the drawings]

FIG. 1 is a schematic front view of the entire apparatus.

FIG. 2 is a schematic plan view of the entire apparatus.

FIG. 3 is a schematic right side view of the entire apparatus.

FIG. 4 is a schematic view of a main part of the front of the entire apparatus.

FIG. 5 is a schematic front view of a main part of the entire apparatus.

FIG. 6 is a bottom view of a main part of the blotter.

FIG. 7 is a schematic cross-sectional view of a blotter.

FIG. 8 is a schematic cross-sectional view of a blotter.

FIG. 9 is a partially enlarged bottom view of the front blade.

FIG. 10 is a fragmentary sectional view of a main part.

FIG. 11 is a plan view of a rotational driving force transmission unit.

FIG. 12 is a side view of a rotational driving force transmission unit.

FIG. 13 is a sectional view taken along line XIII-O-XIII in FIG. 11;

FIG. 14 is a plan view of an inner shell.

FIG. 15 is a side view of the inner shell.

FIG. 16 is a rear view of the inner shell.

FIG. 17 is a sectional view taken along line XVII-XVII in FIG. 14;

FIG. 18 is a plan view of an outer shell.

FIG. 19 is a side view of the outer shell.

20 is a sectional view taken along line XX-XX in FIG.

21 is a sectional view taken along line XXI-XXI in FIG.

FIG. 22 is a sectional view taken along line XXII-O-XXII in FIG. 18;

FIG. 23 is a plan view of a connecting portion.

24 is a sectional view taken along line XXIV-XXIV in FIG.

[Description of sign]

 44 Connecting part 165 Hollow fixed shaft 169 Rotational driving force transmitting part 171 Ball bearing 173 Ball bearing 175 Convex curved surface 177 Protrusion 183 Concave curved surface 185 Receiving projection 187 Receiving surface 199 Fall-off prevention unit 200 Housing 202 Slope

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Shimizu 3-18-1, Shimodera, Naniwa-ku, Osaka-shi Yamazaki Sangyo Co., Ltd. (56) Reference Jikken Sho 38-13785 (JP, Y1) 48-30855 (JP, B1) JP-B 61-3221 (JP, B2)

Claims (4)

(57) [Scope of request for utility model registration] An apparatus for treating a floor or the like, wherein a connecting portion of a rotating contact processing member for treating a floor surface, a road surface and the like and a rotational driving force transmitting portion of a rotary driving device are detachably configured. The number of the rotational driving force transmitting portions is n (n is an integer of 2 or more) that protrudes outward in the radial direction and is provided with a rotationally symmetric convex curved surface that is convex downward or obliquely downward and that is provided n times rotationally symmetrically. ), And the connecting portion opens upward,
It has a concave curved surface having a downwardly or obliquely downwardly convex rotationally symmetric shape and n holding portions provided in an n-fold rotationally symmetrical shape, and the holding portion has
An upper portion is provided with a falling-off prevention portion, and has a housing portion for housing at least a part of the projection portion with a margin in the vertical direction, and a receiving portion for receiving the side of the projection portion in the normal rotation direction in the circumferential direction. And
The circumferential reverse direction side of the housing portion is opened, and in a state where the axial direction of the rotational driving force transmitting portion and the connecting portion are close to and coincide with each other, the concave curved surface can support the convex curved surface and the holding portion is An apparatus for treating a floor surface or the like, characterized in that it is configured to hold a projection. 2. The apparatus according to claim 1, wherein the connecting portion has a spiral slope for guiding the projecting portion from the upper side of each of the falling-off preventing portions to another holding portion on the normal rotation direction side. . 3. A rotationally symmetric convex surface convex downward or obliquely downward and n protrusions (n is an integer of 2 or more) protruding radially outward provided in an n-fold rotational symmetry. A rotary drive device provided with a rotary drive force transmission section having a section. 4. An upwardly open, downwardly or obliquely downwardly convex, rotationally symmetric concave curved surface and n number of rotationally symmetrically provided holding portions, wherein the holding portion is provided on the upper side. A rotary contact processing member comprising: a receiving portion provided with a falling-off prevention portion; and a receiving portion, and a connecting portion in which a circumferential reverse rotation side of the receiving portion is opened.