FLOOR WASHING-DRYING MACHINE

Abstract

A floor washing-drying machine includes a framework, which can move on the floor and supports, in a lower region, a floor washing assembly having at least one rotating brush and at least one nozzle for dispensing a washing liquid. A floor drying assembly is arranged at the rear of the washing assembly, which comprises includes a rear floor wiper, which extends substantially transversely to the advancement direction of the machine, and a suction device which is connected to a tank for recovering the dirty liquid. The machine further includes at least one pair of lateral floor wipers, which are arranged on mutually opposite sides with respect to the vertical central plane of the framework and extend substantially along at least one portion of the longitudinal extension of the framework; each one of the lateral floor wipers includes respectively at least three vertical drying blades.

Claims

1-5. (canceled)

6. A floor washing-drying machine comprising: a framework configured to move on the floor and supports, in a lower region, a floor washing assembly, comprising at least one rotating brush and at least one nozzle for dispensing a washing liquid, a floor drying assembly being arranged at a rear of said washing assembly, which comprises a rear floor wiper, which extends substantially transversely to an advancement direction of the machine, and a suction device connected to a tank for recovering the dirty liquid, and further comprising at least one pair of lateral floor wipers arranged on mutually opposite sides, with respect to a vertical central plane of said framework which is parallel to the machine advancement direction, and extending substantially along at least one portion of a longitudinal extension of said framework, each one of said lateral floor wipers comprising at least three respective vertical drying blades, made of elastically flexible material, in contact with a lower edge thereof against the floor and arranged substantially parallel and laterally spaced with respect to each other, said vertical drying blades comprising respectively, from an inside toward an outside of said framework in a transverse direction with respect to the advancement direction of the machine, at least one first rough drying blade, at least one second fine drying blade and at least one third drying finishing blade.

7. The machine according to claim 6, wherein said lateral floor wipers extend between said at least one brush and said rear floor wiper.

8. The machine according to claim 6, wherein said lateral floor wipers are arranged in a space comprised between a pair of lateral wheels for resting on the floor for said framework.

9. The machine according to claim 6, wherein said lateral floor wipers extend progressively away from the vertical central plane of said framework proceeding from a rear part toward a front part of said framework.

10. The machine according to claim 6, wherein each one of said lateral floor wipers comprises a supporting frame provided with means for connection to a lower part of said framework and provided with at least one abutment face which is oriented laterally with respect to the longitudinal extension of said framework, said drying blades being arranged parallel to said abutment face and being clamped, with the interposition between said drying blades of spacer elements, between a lateral presser body and said abutment face.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Further characteristics and advantages of the disclosure will become better apparent from the description of a preferred but not exclusive embodiment of the machine according to the disclosure, illustrated by way of non-limiting example in the accompanying drawings, wherein:

[0017] FIG. 1 is a lateral elevation view of the machine according to the disclosure;

[0018] FIG. 2 is a bottom view of the machine according to the disclosure;

[0019] FIG. 3 is a side view of the machine according to the disclosure with parts omitted for the sake of simplicity;

[0020] FIG. 4 is a top perspective view of the machine according to the disclosure, with parts omitted for the sake of simplicity;

[0021] FIG. 5 is a bottom perspective view of the machine according to the disclosure, with parts omitted for the sake of simplicity;

[0022] FIG. 6 is a sectional view taken along the line VI-VI of FIG. 3;

[0023] FIG. 7 is a head-on rear view of the machine according to the disclosure, with parts omitted for the sake of simplicity;

[0024] FIG. 8 is a perspective view of a lateral floor wiper of the machine according to the disclosure;

[0025] FIG. 9 is a front view of a lateral floor wiper of the machine according to the disclosure; and

[0026] FIG. 10 is a side view of a lateral floor wiper of the machine according to the disclosure during operation.

DETAILED DESCRIPTION OF THE DRAWINGS

[0027] With reference to the above cited figures, the machine according to the disclosure, generally designated by the reference numeral 1, comprises a framework 2, which can move on the floor, to which at least two lateral wheels 3 are advantageously connected, allowing the resting of the framework 2 on the floor, and can be connected to automated traction motor means of the machine.

[0028] The framework 2 has, parallel to the direction of advancement of the machine, a longitudinal extension and supports in a lower region a floor washing assembly 4, which comprises one or more rotating brushes 5 and at least one nozzle 6 for dispensing a washing liquid, which draws from a supply tank 6a arranged on the framework 2.

[0029] Optionally, laterally to the brushes 5 there can be splash guards 5a, which are meant to prevent the washing liquid propelled, by centrifugal force, by the brushes 5 from being able to exit laterally, with respect to the advancement direction of the machine, from the perimeter of the framework 2.

[0030] At the rear of the washing assembly 4, according to the advancement direction of the machine on the floor, there is a floor drying assembly 8, which comprises a rear floor wiper 9, which extends substantially transversely to the advancement direction of the machine, and a suction device 10, which comprises a suction inlet 10a and is connected to a tank 10b for recovering the dirty liquid, which is also mounted on the framework 2.

[0031] The machine according to the disclosure comprises at least one pair of lateral floor wipers 12, which are arranged, on mutually opposite sides, with respect to the vertical central plane 2a of the framework 2, which extends parallel to its advancement direction, and extend substantially along at least one portion of the longitudinal extension of the framework 2.

[0032] Also according to the disclosure, each lateral floor wiper 12 is provided with at least three respective drying blades 13a, 13b, 13c, which are made of elastically flexible material and are in contact with the floor with their lower edge.

[0033] In particular, the drying blades 13a, 13b, 13c are arranged substantially parallel and laterally spaced with respect to each other, and are constituted respectively, from the inside toward the outside of the framework 2 in a transverse direction with respect to the advancement direction of the machine, by at least one first rough drying blade 13a, by at least one second fine drying blade 13b, and by at least one third drying finishing blade 13c.

[0034] In practice, due to their arrangement, the three drying blades 13a, 13b, 13c are subjected, particularly during the steering movements of the machine, to a movement on the floor that allows them to carry out, one after the other, in sequence, different actions on said floor.

[0035] In particular, as mentioned above, the first blade 13a performs a rough drying function on the floor, since it entrains the larger particles of dirt and most of the liquid present on the floor, while the second blade 13b performs a “fine” drying function, since it acts on the remaining particles of dirt of smaller sizes and entrains, thus causing it to be further reduced, the quantity of residual liquid on the floor.

[0036] Finally, the third blade 13c carries out the drying “finishing” function, since it completes the drying process by acting on the last remaining residues that have remained and have not been cleaned by the first and the second blade 13a and 13b, which preceded it in the drying action.

[0037] Conveniently, the lateral floor wipers 12 extend between the brushes 5 and the rear floor wiper 9 and are advantageously arranged in a space comprised between the two lateral wheels 3 of the framework 2.

[0038] Preferably, the lateral floor wipers 12 extend, moreover, progressively away from the vertical central plane 2a of the framework 2 proceeding from the rear part toward the front part of the framework 2.

[0039] It should be noted that the machine according to the disclosure may be of the “on-board operator” type, as in the illustrated example, and in this case the framework 2 has, in the front part, a driver seat 14 and, besides the lateral wheels 3, arranged in the rear portion, at least one frontal steerable wheel 15, or it may be of the “walk-behind” type and in this case the framework 2 will have an entrainment handlebar, in the rear part, and a single pair of lateral wheels 3 for resting on the ground.

[0040] With reference, in particular, to FIGS. 8 and 9, each one of the lateral floor wipers 12 can be conveniently provided by means of a supporting frame 17 provided advantageously with means for connection to the lower part of the framework 2, constituted conveniently by brackets 18 provided with openings 18a for the passage of anchoring bolts.

[0041] In particular, the supporting frame 17 has at least one abutment face 17a, which is conveniently oriented laterally with respect to the advancement direction of the machine and, more particularly, in the embodiment illustrated, toward the outside of the framework 2.

[0042] The drying blades 13a, 13b, 13c are arranged parallel to said abutment face 17a of the supporting frame 17 and are clamped, with the interposition of spacer elements 19 between them, between a lateral presser body 20, constituted, for example, by a strip arranged parallel to the supporting frame 17, and the abutment face 17a, by means of locking bolts and screws 21.

[0043] The operation of the machine, according to the disclosure, is as follows.

[0044] During the advancement of the machine, the brushes 5 scrub the floor, while the dispensing nozzle 6 applies the washing liquid on the floor. The continuation of the advancement of the machine makes the lateral floor wipers 12 and the rear floor wiper 9 collect the washing liquid and the removed dirt, which are subsequently recovered by the suction device 10.

[0045] In particular, as can be seen in FIG. 10, in case of a steering action of the machine in its advancement, one of the lateral floor wipers 12 performs a movement on the floor according to the movement direction designated by the arrow 100, depending on whether the steering occurs to the right or to the left. This movement brings, in each instance, the lateral floor wipers 12 to entrain with them the dirt and the residue of washing liquid present on the floor in lateral areas, otherwise not covered by the passage of the rear floor wiper 9.

[0046] More particularly, the movement of the floor wipers 12 during the steering actions of the machine, respectively in case of steering actions to the right or to the left, allows the corresponding first blade 13a to perform a rough drying, i.e., the entrainment of the larger particles of dirt and of the greater quantity of liquid present on the floor, allows the second blade 13b to carry out the fine drying, i.e., the entrainment of the smaller particles and the further reduction of liquid residual, and allows the third blade 13c to carry out the finishing of the drying, i.e., the entrainment of any last residues of dirt and liquid that might have remained, thus ensuring completion of the drying process.

[0047] In practice it has been found that the disclosure achieves the intended aim and objects, providing a floor washing-drying machine capable of ensuring a complete and optimum drying of the floor during the passage of the machine, even in the event of steering actions.

[0048] The disclosure, thus conceived, is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.

[0049] Thus, for example, based on the same concept, depending on the geometry and type of the machine, on the finishing requirements and costs, the lateral floor wipers may be optionally positioned also in other areas of the framework, but in any case always so as to allow the coverage of the whole wet area during the movement of the machine.

[0050] All the details may furthermore be replaced with other technically equivalent elements.

[0051] In practice, the materials used, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to the requirements and the state of the art.

[0052] The disclosures in Italian Patent Application No. 102018000005370 from which this application claims priority are incorporated herein by reference.