WO2022233260A1

WO2022233260A1 - Shoe-washing machine

Info

Publication number: WO2022233260A1
Application number: PCT/CN2022/089768
Authority: WO
Inventors: 八木文也
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社; 海尔智家股份有限公司
Priority date: 2021-05-06
Filing date: 2022-04-28
Publication date: 2022-11-10
Also published as: JP2022172563A; CN117279556A

Abstract

The present invention provides a technique which can prevent the situation of water not being fully removed from shoes due to the shoes being in a pose not suitable for water removal. The shoe-washing machine (100) is provided with: an outer drum (2), which can store water; an inner drum (3), which is accommodated in the outer drum (2); a brush unit (4), which is provided in the inner drum (3); and a control part (7), which controls the rotation of the inner drum (3) and the brush unit (4). The control part (7) executes: a first water removal process (step S71), during which the inner drum (3) rotates at a specified water removal speed for a specified first period of time; a loosening process (step S73), during which the brush unit (4) rotates at a specified loosening speed after the first water removal process; and a second water removal process (step S75), during which the inner drum (3) rotates at the water removal rotational speed for a second period of time that is longer than the first period of time.

Description

shoe washing machine

technical field

The invention relates to a shoe washing machine for washing shoes.

Background technique

For example, Patent Document 1 discloses a shoe washing machine for washing various shoes such as sports shoes and slippers. The shoe washing machine disclosed herein is provided with an outer tub and an inner tub in a box, a main brush is provided on the side of a rotating shaft erected at the bottom of the inner tub, and a secondary brush is provided at the bottom of the inner tub.

In such a structure, when shoes to be washed (specifically, a single shoe on the left and a single shoe on the right) are put into the inner tub, water is stored in the inner tub and the rotating shaft is rotated. In this way, the shoes placed in the inner tub forming the rotating water flow swim, and the shoes are scrubbed by the main brush and the auxiliary brush. After the scrubbing by the brush is completed and rinsing or the like is performed, the inner tub is rotated at a high speed in a state in which the water of the inner tub is discharged (dehydration process). Thereby, the moisture contained in the shoes is thrown off by centrifugal force, and the shoes are dehydrated.

In addition, in general, the sole of a shoe is formed of a water-impermeable material such as rubber, for example. Therefore, during the dehydration process, if the shoes are in a posture with the sole facing the peripheral wall side of the inner tub (outward posture), the water will not be sufficiently thrown off, and the dehydration of the shoes will be insufficient.

Conventionally, when the dehydration of the shoes is still insufficient even after a predetermined time has elapsed, the user has to readjust the posture of the shoes placed in the inner tub to a posture in which the sole faces the center side of the inner tub (inward posture) before adding Dehydration is very laborious.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Application Publication No. Sho 62-120956

SUMMARY OF THE INVENTION

The problem to be solved by the invention

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a technique capable of suppressing the occurrence of insufficient dehydration of shoes due to the shoes being in an unsuitable posture for dehydration.

solution to the problem

In order to achieve this purpose, the present invention adopts the following scheme.

That is, the present invention is a shoe washing machine comprising: an outer tub capable of storing water; an inner tub accommodated in the outer tub; a brush unit provided in the inner tub; and a control unit for controlling the inner tub and the brush In the rotation of the unit, the shoe washing machine is characterized in that the control unit executes: a first dehydration process in which the inner tub is rotated at a prescribed dehydration rotation speed for a prescribed first time period; and a loosening process in the first dehydration process After a first dehydration process, the brush unit is rotated at a predetermined release rotation speed; and in a second dehydration process, the inner tub is rotated at the dehydration rotation speed for a second time period longer than the first time period.

Preferably, in the shoe washing machine of the present invention, the control unit executes after the first dehydration process: a determination process to determine whether the loosening process should be performed, and in the determination process, the When the variation range of the physical quantity of the inner tub during the first spin-drying process is equal to or less than a predetermined threshold value, the control unit determines that the unwinding process should be performed.

Preferably, in the shoe washing machine of the present invention, the physical quantity of the inner tub used in the determination process is the acceleration of the inner tub.

Preferably, in the shoe washing machine of the present invention, the control unit performs after the loosening process: a repeating process, and repeating the first dehydration process and the determination process.

Preferably, in the shoe washing machine of the present invention, after the decompression process is performed for the second time, the repeat process is not performed and the process proceeds to the second dehydration process.

Preferably, in the shoe washing machine of the present invention, when it is determined in the determination process that the debonding process should not be performed, the spin speed of the dehydration is kept unchanged, and then the first dehydration process is performed. Describe the second dehydration process.

In addition, in another aspect, the present invention is a shoe washing machine comprising: an outer tub capable of storing water; an inner tub accommodated in the outer tub; a brush unit provided in the inner tub; The rotation of the inner tub and the brush unit, and the shoe washing machine is characterized by including an acceleration sensor that detects the acceleration of the inner tub, and the control unit determines that the inner tub is accommodated in the inner tub based on the detection value of the acceleration sensor. whether the shoes are in a position that is not suitable for dehydration.

Invention effect

According to the shoe washing machine of the present invention, a debonding process is performed after the first dehydration process. Therefore, even if the shoes are in an unsuitable posture for dehydration (typically, the outward posture of the sole facing the peripheral wall side of the inner tub) during the first dehydration process, it is possible to change the posture of the shoes through the release process. Therefore, it is possible to suppress the occurrence of insufficient dehydration due to the second dehydration process being performed while keeping the shoes in an unsuitable posture for dehydration.

According to the shoe washing machine of the present invention, when the range of change in the physical quantity of the inner tub during the first spin-drying process is equal to or less than the predetermined threshold value, it is determined that the unwinding process should be performed. A small variation in the physical quantity of the inner tub during the first dehydration process means that the state of the inner tub and the shoes accommodated in the inner tub lacks change, that is, the amount of moisture blown away from the shoes is small. At this time, there is a high possibility that the shoes are in an unsuitable posture for dehydration. In this case, it can be expected to change the posture of the shoe by performing the loosening process. Therefore, the occurrence of insufficient dehydration of the shoes due to the shoes being in an unsuitable posture for dehydration is effectively suppressed.

According to the shoe washing machine of the present invention, the physical quantity of the inner tub used in the determination process is the acceleration of the inner tub. A small variation in the acceleration of the inner tub means that there is a lack of variation in the total weight of the inner tub and the shoes contained in the inner tub, ie, a small amount of moisture blown away from the shoes. Therefore, whether or not the loosening process should be performed can be appropriately determined based on the variation width of the acceleration of the inner tub.

According to the shoe washing machine of the present invention, the first dehydration process and the determination process are repeatedly performed after the loosening process. That is, the first dehydration process is performed again after the dehydration process, and it is determined whether or not the dehydration process should be performed again based on the variation range of the physical quantity of the inner tub during the execution of the first dehydration process. Therefore, for example, if the posture of the shoes is not appropriately changed during the first unwinding process, the second unwinding process is performed, and it is possible to sufficiently suppress the second dehydration while keeping the shoes in an unsuitable posture for dehydration. process situation arises.

According to the shoe washing machine of the present invention, after the second dehydration process is performed, the repeating process is not performed and the process proceeds to the second dehydration process. In the case where the posture of the shoe is not properly changed even after performing the loosening process twice, the possibility of changing the posture of the shoe is low even if the number of times of the loosening process is increased on this basis. That is, the debonding process after the third time is less effective than the debonding process up to the second time. Here, unnecessary lengthening of the process time by performing such an ineffective debonding process is avoided.

According to the shoe washing machine of the present invention, when it is determined that the decompression process should not be performed, the rotation speed of the dehydration is kept constant, and the first dehydration process is followed by the second dehydration process, thereby avoiding unnecessary lengthening of the process time.

According to the shoe washing machine of the present invention, an acceleration sensor that detects the acceleration of the inner tub is provided, and based on the detection value of the acceleration sensor, it is determined whether or not the shoes accommodated in the inner tub are in an unsuitable posture for dehydration. Therefore, when the shoes accommodated in the inner tub are in an unsuitable posture for dehydration, the situation can be appropriately sensed.

Description of drawings

FIG. 1 is a side cross-sectional view showing a schematic configuration of a shoe washing machine 100 according to the embodiment.

FIG. 2 is a block diagram showing the hardware configuration and functional configuration of the control unit 7 .

3 is a diagram showing an experimental result of measuring the relationship between the rotation time and the weight of the shoes when the shoes accommodated in the inner tub 3 are in an inward posture and the inner tub 3 is rotated at the dehydration rotational speed.

FIG. 4 is a diagram showing a flow of a series of processes performed in the shoe washing machine 100 .

FIG. 5 is a diagram showing a flow of a series of processes of the dehydration process.

FIG. 6 is a diagram for explaining the flow of the dehydration process for each posture of the shoes.

FIG. 7 is a diagram showing another flow of a series of processes of the dehydration process.

Description of reference numerals

1: Box; 2: Outer barrel; 3: Inner barrel; 4: Brush unit; 41: Base part; 42: Main brush part; 43: Sub-brush part; 5: Drive part; 6: Acceleration sensor; 7: Control part ;701: action control part; 702: determination part; 100: shoe washing machine; S7: dehydration process; S71, S701: first dehydration process; S72: determination process; S73, S702: release process; S74: repeat determination process ; Steps S75, S703: the second dehydration process.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

<1. Structure of the shoe washing machine>

The shoe washing machine of the embodiment is an apparatus for washing various shoes such as sneakers and slippers, and is installed in, for example, a coin laundry. The structure of the shoe washing machine will be described with reference to FIG. 1 . FIG. 1 is a side cross-sectional view showing the entirety of the shoe washing machine 100 .

The shoe washing machine 100 includes a case 1, an outer tub 2 accommodated in the case 1, an inner tub 3 accommodated in the outer tub 2, a brush unit 4 provided inside the inner tub 3, and a drive for rotating the inner tub 3 and the brush unit 4 Section 5, an acceleration sensor 6 serving as a sensor for detecting the state of the inner tub 3, a control section 7 for controlling these components, and the like.

(Box 1)

The box 1 is a substantially rectangular parallelepiped-shaped member that forms an accommodation space therein, and is provided with a lid 11 for closing/opening an opening formed on the upper surface thereof. Moreover, the operation part 12 for accepting various operations by a user is arrange|positioned in the housing|casing 1.

(outer barrel 2)

The outer tub 2 is a storage tub for storing water, and is elastically supported inside the casing 1 by a hanger bar 21 . The outer tub 2 is a cylindrical member whose upper surface is open and whose bottom surface is closed, and is arranged in a posture in which its central axis extends substantially vertically.

Above the outer tub 2, a water supply pipe 22 having one end connected to an external water supply facility or the like is arranged so that the water supply port faces the opening of the outer tub 2. A water supply valve 221 is provided in the middle part of the water supply pipe 22. When the water supply valve 221 is in an open state, water supplied from an external water supply facility or the like flows into the inner tub 3 and then into the outer tub 2 through the water supply pipe 22, and is stored in the Outer barrel 2.

In addition, the other end of the drain pipe 23 whose one end is connected to external drainage facilities or the like is connected to the bottom of the tub 2 . A drain valve 231 is provided in the middle part of the drain pipe 23 , and when the drain valve 231 is opened, the water in the tub 2 is drained through the drain pipe 23 .

(Inner barrel 3)

The inner tub 3 is a so-called dehydration tub, and is accommodated inside the outer tub 2 in a box shape. Like the outer tub 2 , the inner tub 3 is a cylindrical member with an open upper surface and a closed bottom surface, and is disposed in a posture with its central axis coaxial with the central axis of the outer tub 2 . In the peripheral wall of the inner tub 3, a plurality of water passage holes (not shown) are perforated almost over the entire periphery. In addition, a gimbal (not shown) is provided in the vicinity of the upper portion of the inner peripheral wall of the inner tub 3 .

(Brush unit 4)

The brush unit 4 is provided inside the inner tub 3 , and is a member for scrubbing the shoes accommodated in the inner tub 3 , and includes a base portion 41 , a main brush portion 42 , and a sub-brush portion 43 .

The base portion 41 is a member provided inside the inner tub 3 , and includes a base portion 411 and a shaft portion 412 . The base portion 411 is a flat plate-shaped member provided on the bottom surface of the inner tub 3 , and is disposed at a position concentric with the bottom surface of the inner tub 3 in plan view. The shape of the base portion 411 may be circular in plan view, or may be radially developed in plan view. The shaft portion 412 is an elongated cylindrical member erected from the center of the base portion 411 along the normal line direction thereof, and is disposed in a posture in which the central axis is coaxial with the central axis of the inner tub 3 .

A large number of hair-like members 421 are provided on the outer peripheral surface of the shaft portion 412 . Each hair-like member 421 is formed of an elongated member having elastic force, and extends so as to stand up in the radial direction of the shaft portion 412 (the normal line direction of the outer peripheral surface of the shaft portion 412 ). The length of each hair-like member 421 is about three-quarters of the inner radius of the inner tub 3 . The plurality of hair-like members 421 constitute the main brush portion 42 for scrubbing the shoes accommodated in the inner tub 3 from the center axis side of the inner tub 3 .

Many hair-like members 421 are divided into two rows, and the hair-like members 421 of each row are arranged in a spiral shape so as to draw a 180-degree spiral in the circumferential direction of the shaft portion 412 along the axial direction of the shaft portion 412 in plan view. One row and the other row are arranged symmetrically across the shaft portion 412 , and the hair-like members 421 of the respective rows at the same height are arranged at positions facing each other across the shaft portion 412 . Therefore, the portion on the central axis side in the accommodation space of the inner tub 3 is divided into two spaces by the two rows of the hair-like members 421 .

A large number of hair-like members 431 are provided on the upper surface of the base portion 411 . Each hair-like member 431 is formed of an elongated and elastic member, and extends so as to stand up in the direction normal to the upper surface of the base portion 411 . The plurality of hair-like members 431 constitute the sub-brush portion 43 that scrubs the shoes accommodated in the inner tub 3 from the bottom surface side of the inner tub 3 .

(Driver 5)

The drive unit 5 is a mechanism for rotating the inner tub 3 and the brush unit 4 around the central axis thereof. The drive unit 5 includes a motor 51 and a power distribution unit 52 arranged below the inner tub 3 . The first pulley 511 is attached to the output shaft of the motor 51 , the second pulley 521 is attached to the input shaft of the power distribution unit 52 , and an endless belt 53 is surrounded between the first pulley 511 and the second pulley 521 . As a result, power can be transmitted from the motor 51 to the power distribution unit 52 .

The power distribution unit 52 is provided with a clutch mechanism, and the output target of the driving force input from the motor 51 is switched by the

pulleys

511 and 521 to selectively realize a rotation mode (brush rotation mode) in which the driving force of the motor 51 is transmitted only to the brush unit 4 . ) and a rotation mode (integrated rotation mode) in which the driving force of the motor 51 is transmitted to both the inner tub 3 and the brush unit 4 provided in the inner tub 3 . In the brush rotation mode, the inner tub 3 does not rotate, and only the brush unit 4 rotates around the central axis of the shaft portion 412 . Further, in the integral rotation mode, the inner tub 3 and the brush unit 4 rotate integrally (ie, at the same rotational speed) around the central axis.

(acceleration sensor 6)

The acceleration sensor 6 is a sensor that detects the acceleration of the inner tub 3 . In the shoe washing machine 100 , the motor 51 is provided so that one end of the shaft portion of the motor 51 comes into contact with the bottom surface of the tub 2 indirectly or directly. The acceleration of the inner barrel 3. The acceleration sensor 6 is a triaxial acceleration sensor, and detects three orthogonal directions (that is, a direction parallel to the central axis of the inner tub 3 (vertical direction) and an inner edge in a plane (horizontal plane) perpendicular to the central axis of the inner tub 3 ). acceleration in each direction of the two orthogonal axes). The acceleration sensor 6 is electrically connected to the control unit 7 , and the detection value detected by the acceleration sensor 6 is input to the control unit 7 .

(control unit 7)

The control unit 7 will be described with reference to FIGS. 1 and 2 . FIG. 2 is a block diagram showing the hardware configuration of the control unit 7 and the functional configuration realized by the control unit 7 .

The control unit 7 is constituted by, for example, a microcomputer or the like, and is configured to include a CPU 71 as a central processing unit, a memory 72 constituted by a volatile storage device such as a RAM, a storage unit 73 constituted by a nonvolatile storage device such as a ROM, A communication interface 74 for communicating with the acceleration sensor 6 and the like, a communication unit 75 as a network interface for communicating with external devices via a communication network such as the Internet, and the like. The storage unit 73 stores a program P for executing a series of operations in the shoe washing machine 100, various parameters for executing the program P, control flags, and the like.

Moreover, the control part 7 is connected with each part (specifically, the water supply valve 221, the drain valve 231, the motor 51, the power distribution part 52, the acceleration sensor 6, etc.) with which the shoe washing machine 100 is equipped.

The control unit 7 implements an operation control unit 701 , a determination unit 702 , and the like. These means 701 and 702 are realized, for example, by the CPU 71 reading and executing the program P stored in the storage unit 73 into the memory 72 . Of course, some or all of these

functional units

701 and 702 may be realized by installing a circuit module for realizing the function.

The operation control unit 701 controls each unit included in the shoe washing machine 100 to perform a series of operations described later in accordance with the program P stored in the storage unit 73 .

As will be understood later, in the dehydration process (step S7 in FIG. 4 ), which is one of the processes included in a series of operations performed in the shoe washing machine 100 , the inner tub 3 containing the shoes containing water is rotated at a predetermined dehydration rotation speed. . At this time, there is a risk that when the shoes are in an unsuitable posture for dehydration (that is, a posture in which the sole hinders the removal of moisture, typically an outward posture in which the sole faces the peripheral wall side of the inner tub 3), the moisture is not sufficiently absorbed. I throw it off, and the dehydration of the shoe is insufficient.

Therefore, in this case, the operation control unit 701 performs the loosening process (step S73 in FIG. 5 ). The loosening process is a process for changing the posture of the shoes accommodated in the inner tub 3 , and specifically, is a process for rotating the brush unit 4 at a predetermined loosening rotational speed. As long as the posture of the shoes is changed through the loosening process and no longer in a posture that is not suitable for dehydration, the water in the shoes will be fully shaken off later to avoid insufficient dehydration of the shoes.

The determination unit 702 determines whether or not the loosening process should be performed. Specifically, the determination unit 702 determines whether or not the change width of the acceleration of the inner tub 3 when the inner tub 3 containing shoes containing water is rotated at a predetermined dehydration rotation speed is equal to or less than a predetermined threshold value, and when it is equal to or less than the predetermined threshold value, it is determined that: The shoes in the inner tub 3 are in an unsuitable posture for dehydration, and a release process for changing the posture should be performed.

The variation in the acceleration of the inner tub 3 when the inner tub 3 containing the shoes containing water is rotated at a predetermined dehydration rotation speed reflects the change in the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3 . That is, the acceleration is a physical quantity that changes with the change in the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3 . As described below, it can be determined whether or not the shoes are in a posture that is not suitable for dehydration by observing the range of changes in such physical quantities.

FIG. 3 shows a pair of shoes housed in the inner tub 3 in an inward posture with the sole facing the central axis side of the inner tub 3 (the posture shown in FIG. 1 ) and rotating the inner tub 3 at a dehydration rotation speed of 720 rpm. Experiment results of measuring the relationship between the rotation time and the weight of the shoe. As shown in the figure, with the shoe in the inward position, the weight of the shoe decreases as the rotation time becomes longer. It goes without saying that this is due to the constant swishing of moisture from the shoe.

That is, in the case where the shoes are not in a posture unsuitable for dehydration and the dehydration is properly advanced, the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3 is greatly reduced with the rotation time ( FIG. 3 ), which is similar to this Correspondingly, the acceleration of the inner tub 3 changes greatly. On the other hand, when the shoes are in an unsuitable posture for dehydration and the dehydration is not properly advanced, the decrease in the total weight is small, and accordingly the change in the acceleration of the inner tub 3 is also small. That is, if the variation range of the acceleration of the inner tub 3 is smaller than the predetermined threshold value, it can be estimated that the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration.

The specific value of the threshold value used for this determination can be arbitrarily defined. As described above, a typical posture not suitable for dehydration (uncomfortable posture) is an outward posture in which the sole faces the peripheral wall side of the inner tub 3 . Further, a typical posture (proper posture) that is not unsuitable for dehydration is an inward posture in which the sole faces the central axis side of the inner tub 3 . Then, an intermediate posture that is neither the outward posture nor the inward posture is regarded as either an uncomfortable posture or an appropriate posture, and the intermediate posture is changed according to a threshold value for the release determination. That is, the smaller the threshold value is set, the narrower the range of postures regarded as uncomfortable postures is, and the larger the threshold value is set, the narrower the range of postures regarded as suitable postures is. For example, a combination condition in which the number of individual shoes housed in the inner tub 3 and the posture of each individual shoe are changed in various ways is set, and a dehydration experiment and dehydration simulation are performed under each combination condition, and the range of changes in acceleration is collected. The relationship with the dehydration quality can be appropriately derived based on the result, which is considered to be an appropriate threshold value.

<2. Action of the shoe washing machine>

Next, a series of processes performed in the shoe washing machine 100 will be described with reference to FIG. 4 . FIG. 4 is a diagram showing the flow of the series of processes.

First, the user opens the cover 11 of the box 1 and puts the shoes to be washed (specifically, the single shoe on the left and the single shoe on the right) into the inner tub 3 . The inner tub 3 is set to accommodate at most about two pairs of shoes for adults (that is, about four single shoes at most), and at most two pairs of shoes for adults can be washed at the same time. As described above, the portion on the center axis side in the accommodation space of the inner tub 3 is divided into two spaces by the main brush portion 42 (specifically, the hair-like members 421 in each row). Preferably, two or four single shoes are divided into one side and the other side of the two spaces separated by the hair-like member 421, and each is put into the same number.

When putting shoes to be washed into the inner tub 3 , the user closes the lid 11 of the case 1 , inserts coins or the like, and inputs an instruction to start washing via the operation unit 12 .

When an instruction to start washing is input via the operation unit 12, a series of operations for washing shoes starts. A series of operations described below are executed by the operation control unit 701 reading the program P stored in the storage unit 73 and parameters corresponding to the program, and controlling each unit included in the shoe washing machine 100 according to the program P.

Step S1: Water Supply Process

First, the operation control unit 701 opens the water supply valve 221 after locking the lid 11 . Then, water supplied from an external water supply facility or the like flows into the inner tub 3 accommodated in the outer tub 2 via the water supply pipe 22 . The water flowing into the inner tub 3 flows out into the outer tub 2 through a water passage hole (not shown) formed in the inner tub 3 and is stored therein. When a predetermined time (for example, 1 minute) elapses from the start of water supply and the water level in the tub 2 reaches a predetermined height, the operation control unit 701 closes the water supply valve 221 and stops water supply.

It should be noted that the process of rinsing the inside of the inner tub 3 by supplying water to the inner tub 3 according to an instruction from the user (tub washing process) may be performed before the water supply process.

Step S2: Brush Spinning Cleaning Process

Next, the operation control unit 701 injects detergent and controls the motor 51 and the power distribution unit 52 so that the inner tub 3 is not rotated and only the brush unit 4 is rotated at a predetermined cleaning rotational speed. Thereby, a swirling water flow is formed in the inner tub 3 , the shoes swim, and the shoes are scrubbed by the main brush part 42 and the sub brush part 43 . The cleaning rotational speed is preferably about 113 rpm. In addition, the time for which the rotation is continued is preferably about 10 minutes.

Step S3: Drainage and Dehydration Process

Next, the operation control unit 701 opens the drain valve 231 to discharge the water stored in the outer tub 2 . Then, the operation control unit 701 controls the motor 51 and the power distribution unit 52 to rotate the inner tub 3 and the brush unit 4 integrally at a predetermined dehydration rotational speed. Then, the shoes accommodated in the inner tub 3 rotate around the central axis of the inner tub 3 at a high speed, the water contained in the shoes is thrown off by centrifugal force and discharged from the water passage holes, and the shoes are dehydrated. The rotation speed of dehydration is higher than the rotation speed of washing, and is preferably about 720 rpm. In addition, the duration of the rotation is preferably about 2 minutes and 22 seconds.

Step S4: Water Supply Process

Next, the operation control unit 701 opens the water supply valve 221 to start the water supply to the outer tub 2 .

Step S5: Rinsing Process

When a predetermined time (for example, 1 minute) elapses from the start of water supply and the water level in the outer tub 2 reaches a predetermined height, the operation control unit 701 controls the motor 51 and the power distribution unit 52 so that the inner tub 3 is not rotated and only the brush unit 4 is activated. Spin at the specified rinse speed. Thereby, the shoes accommodated in the inner tub 3 are rinsed while being scrubbed by the main brush part 42 and the sub brush part 43 . The rinse speed can be set to the same value as the wash speed. The duration of the rotation is preferably about 1 minute and 45 seconds. In addition, during this rinsing process, the operation control part 701 maintains the water supply valve 221 in the open state for a predetermined time (for example, about 30 seconds) to perform water-filling rinsing.

Step S6: Drainage Process

Next, the operation control unit 701 opens the drain valve 231 to discharge the water stored in the outer tub 2 .

Step S7: Dehydration Process

When a predetermined time (for example, about 30 seconds) has elapsed since the start of the drainage process in step S6 and the water in the outer tub 2 is drained, the operation control unit 701 performs the dehydration process. A series of processes of the dehydration process will be described with reference to FIG. 5 . FIG. 5 is a diagram showing a flow of a series of processes of the dehydration process.

Step S71: the first dehydration process

In the first spin-drying process, the operation control unit 701 controls the motor 51 and the power distribution unit 52 to rotate the inner tub 3 and the brush unit 4 integrally at a predetermined spin-drying rotation speed for a predetermined first spin-drying time. As a result, the water contained in the shoes is thrown off by centrifugal force and discharged from the water passage holes, and the shoes are dehydrated. As described above, the spin rotation speed is higher than the washing rotation speed, and is preferably about 720 rpm.

During the first spin-drying process, the acceleration sensor 6 detects the acceleration of the inner tub 3 and transmits the detected value to the determination unit 702 in real time. That is, the first dehydration process is a process for dehydration of the propelling shoe, and is a process for acquiring the change width of acceleration, which is data for determining whether or not the release process should be performed. Therefore, it is preferable that the first spin-drying time is a time necessary and sufficient to acquire data necessary for determination. Specifically, the first spin-drying time is preferably about 1 minute and 30 seconds.

Step S72: determination process

When the first spin-drying process is completed, the determination unit 702 then determines whether or not the unwinding process should be performed. Specifically, during the first dehydration process, the acceleration sensor 6 detects the acceleration of the inner tub 3, and sends the detected value to the determination unit 702 in real time. The variation range of the acceleration of the inner tub 3 during the first dehydration process is: When the predetermined threshold value or less is reached, the determination unit 702 determines that the shoes accommodated in the inner tub 3 are in an unsuitable posture (uncomfortable posture) for dehydration, and the loosening process should be performed.

When it is determined in the determination process that the loosening process should be performed (YES in step S72), the process proceeds to the loosening process (step S73). On the other hand, when it is determined in the determination process that the dehydration process should not be performed (NO in step S72 ), the decompression process is not performed, and the process proceeds to the second dehydration process as the final dehydration process (step S75 ).

Among them, the operation control unit 701 maintains the rotational speed of the inner tub 3 and the brush unit 4 at a predetermined dehydration rotational speed until the determination result of the determination process comes out. The rotational speed of the unit 4 is reduced. That is, when it is determined that the loosening process should not be performed, the rotation speed of the inner tub 3 and the brush unit 4 is maintained at the predetermined dehydration rotation speed, and the second dehydration process is performed following the first dehydration process.

Step S73: Release process

During the loosening process, the motion control unit 701 controls the motor 51 and the power distribution unit 52 so that the inner tub 3 is not rotated and only the brush unit 4 is rotated at a predetermined loosening rotational speed. Thereby, the shoes accommodated in the inner tub 3 come into contact with the main brush portion 42 and the sub-brush portion 43 to change their posture and position. The loosening rotational speed can be set to the same value as the cleaning rotational speed or a value smaller than the cleaning rotational speed. In addition, the time for which the rotation is continued is preferably about 10 seconds.

Step S74: Repeat the determination process

Next, the operation control unit 701 determines whether or not the second release process is performed. In a case where it is determined that the second unwinding process has not been performed (ie, the number of times of performing the unwinding is one), the operation control unit 701 repeats the first dehydration process (step S71 ) and the determination process (step S72 ) again. ) (repeat process). On the other hand, when it is determined that the second unwinding process has been performed (that is, when the number of times the unwinding process is performed is two), the operation control unit 701 proceeds to the second spin-drying process without executing the repeating process ( Step S75).

Step S75: the second dehydration process

In the second dehydration process, the operation control unit 701 controls the motor 51 and the power distribution unit 52 to rotate the inner tub 3 and the brush unit 4 integrally at a predetermined dehydration rotation speed for a predetermined second dehydration time. As a result, the water contained in the shoes is thrown off by centrifugal force and discharged from the water passage holes, and the shoes are dehydrated. Here, the second dehydration time is longer than the first dehydration time, and is preferably about 2 minutes.

＜3. Dehydration process of each posture of shoes＞

As described above, in the shoe washing machine 100, the flow of the dehydration process (step S7) actually performed varies depending on the posture of the shoes. This point will be described with reference to FIGS. 5 and 6 . Fig. 6 is a diagram for explaining the flow of the dehydration process for each posture of the shoes.

(Example 1)

In the initial stage of the dehydration process, when the shoes accommodated in the inner tub 3 are not in an unsuitable posture for dehydration (appropriate posture), in the determination process based on the first dehydration process, it is determined that the release should not be performed process. Therefore, the rotation speed is maintained at the predetermined dehydration rotation speed, and the first first dehydration process and the second dehydration process are continuously performed.

In this way, in the initial stage of the dehydration process, when the shoes accommodated in the inner tub 3 are in an appropriate posture, the first dehydration process and the second dehydration process are performed without changing the state. Neither is easy to happen.

(Example 2)

In the initial stage of the dehydration process, when the shoes accommodated in the inner tub 3 are in a posture not suitable for dehydration (uncomfortable posture), in the determination process based on the first dehydration process, it is determined that the dehydration process should be performed and Carry out the first loosening process. Through this first release process, the posture of the shoe is changed to an appropriate posture. In this case, in the determination process based on the second first dehydration process after that, it is determined that the decompression process should not be performed. Therefore, the rotation speed is maintained at the predetermined dehydration rotation speed, and the second first dehydration process and the second dehydration process are continuously performed.

In this way, even if the shoes accommodated in the inner tub 3 are in an uncomfortable position at the beginning of the dehydration process, as long as the shoes are changed to an appropriate position through the first release process, the first step is performed with the shoes in the appropriate position as in Example 1. Dehydration process and second dehydration process. Therefore, the shoes are sufficiently dehydrated, and uneven dehydration does not easily occur.

(Example 3)

On the other hand, in the first unwinding process, if the posture of the shoes is not changed to an appropriate attitude, in the judgment process based on the second first dehydration process, it is determined that the unwinding process should be performed and the second The second release process. After the second dehydration process is carried out, the second dehydration process is carried out. That is, in this case, the second dehydration process is performed regardless of whether or not the shoes have been changed to an appropriate posture through the second release process.

When the shoes are changed to the proper posture by the second release process, the second dehydration process is performed with the shoes in the proper posture. In this case, the shoes are sufficiently dehydrated, and uneven dehydration does not easily occur.

On the other hand, even if the shoes are not changed into an appropriate posture by the second releasing process, the third releasing process is not performed, and the second dehydrating process is performed. In this case, since the second dehydration process is performed with the shoes in an uncomfortable posture, there is a risk that the shoes are not sufficiently dehydrated. However, in the case where the shoes have not been changed to an appropriate posture even though the release process is performed twice, even if the number of release processes is increased on this basis, the possibility of changing the posture of the shoes is low. That is, the debonding process after the third time is less effective than the debonding process up to the second time. Here, unnecessary lengthening of the process time by performing such an ineffective debonding process is avoided.

＜4.Effects＞

The shoe washing machine 100 of the above-described embodiment includes: an outer tub 2 capable of storing water; an inner tub 3 accommodated in the outer tub 2; a brush unit 4 provided in the inner tub 3; rotate. The control unit 7 executes: a first dehydration process (step S71), in which the inner tub 3 is rotated at a predetermined dehydration rotation speed for a predetermined first time period; and a loosening process (step S73), in which the brush unit 4 is rotated at and the second spin-drying process (step S75), in which the inner tub 3 is rotated at the spin-drying speed for a second time period that is longer than the first time period.

According to this configuration, since the dehydration process is performed after the first dehydration process, even if it is assumed that the shoes are in an unsuitable posture for dehydration (typically, the outward posture of the sole facing the peripheral wall side of the inner tub) at the stage where the first dehydration process is performed ), it is also possible to change the posture of the shoe through this release process. Therefore, it is possible to suppress the occurrence of insufficient dehydration due to the second dehydration process being performed while keeping the shoes in an unsuitable posture for dehydration.

In addition, in the shoe washing machine 100 of the above-described embodiment, the control unit 7 executes the determination process (step S72 ) for determining whether or not the unwinding process should be performed after the first dehydration process, and in the determination process, during the first dehydration process When the variation range of the physical quantity of the inner tub 3 is equal to or less than a predetermined threshold value, it is determined that the loosening process should be performed.

A small variation in the physical quantity of the inner tub 3 during the first dehydration process means that the state of the inner tub 3 and the shoes accommodated in the inner tub 3 lacks change, that is, the amount of moisture blown away from the shoes is small. At this time, there is a high possibility that the shoes are in an unsuitable posture for dehydration. In this case, it can be expected to change the posture of the shoe by performing the loosening process. Therefore, the occurrence of insufficient dehydration of the shoes due to the shoes being in an unsuitable posture for dehydration is effectively suppressed.

In addition, in the shoe washing machine 100 of the above-described embodiment, the physical quantity of the inner tub 3 used in the determination process is the acceleration of the inner tub 3 .

A small variation in the acceleration of the inner tub 3 means that there is a lack of variation in the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3, that is, the amount of moisture blown away from the shoes is small. Therefore, whether or not the loosening process should be performed can be appropriately determined based on the variation width of the acceleration of the inner tub 3 . In addition, since the change in the acceleration of the inner tub 3 can be detected relatively easily using a sensor or the like, it is possible to determine whether or not the loosening process should be performed with a simple structure.

In addition, in the shoe washing machine 100 of the above-described embodiment, the control unit 7 executes the repetition process of repeating the first dehydration process and the determination process after the loosening process.

According to this structure, after the dehydration process, the first dehydration process is performed again, and it is determined whether or not the dehydration process should be performed again based on the range of changes in the physical quantities of the inner tub 3 during the first dehydration process. Therefore, for example, if the posture of the shoes is not appropriately changed during the first unwinding process, the second unwinding process is performed, and it is possible to sufficiently suppress the second dehydration while keeping the shoes in an unsuitable posture for dehydration. process situation arises.

In addition, in the shoe washing machine 100 of the above-described embodiment, after the second release process is performed, the repeat process is not performed, and the process proceeds to the second spin-drying process.

In the case where the posture of the shoe is not properly changed even after performing the loosening process twice, the possibility of changing the posture of the shoe is low even if the number of times of the loosening process is increased on this basis. That is, the debonding process after the third time is less effective than the debonding process up to the second time. Here, unnecessary lengthening of the process time by performing such an ineffective debonding process is avoided.

In addition, in the shoe washing machine 100 of the above-mentioned embodiment, when it is determined in the determination process that the decompression process should not be performed, the dehydration rotation speed is maintained unchanged, and the second dehydration process is performed following the first dehydration process.

According to this structure, the process time can be prevented from becoming unnecessarily long.

Further, the shoe washing machine 100 of the above-described embodiment includes an acceleration sensor 6 that detects the acceleration of the inner tub 3 , and the control unit 7 determines whether the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration based on the detection value of the acceleration sensor 6 .

According to this structure, when the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration, this situation can be appropriately sensed.

<5. Other Embodiments>

Various modifications can be made to other structures without departing from the gist of the present invention.

For example, in the above-described embodiment, the determination process of determining whether or not the debonding process should be performed is performed in the dehydration process (step S7 ), but this may be omitted. Specifically, as shown in FIG. 7 , the above-mentioned first dehydration process (step S701 ) may be performed, followed by the above-mentioned dehydration process (step S702 ), and then the above-mentioned second dehydration process (step S703 ) is performed. ).

In addition, in the above-mentioned embodiment, it is assumed that the repeating process of repeating the first dehydration process and the determination process is performed after the first unwinding process, but such a repeating process may not be performed. That is, the number of times of execution of the decompression process may be set to one at most, and the first decompression process may be performed and the process proceeds to the second spin-drying process.

In addition, in the above-described embodiment, after the second decompression process is performed, the repetition process of repeating the first dehydration process and the determination process is not performed. That is, the number of times of execution of the loosening process is set to be at most two times. However, the maximum number of executions of the loosening process may be three or more. That is, when it is determined that the n-th (n is an arbitrary integer of 2 or more) unwinding process has been performed, no more repeated processes are performed.

Furthermore, in the above-described embodiment, when the range of change in the acceleration of the inner tub 3 during the first spin-drying process is equal to or less than the predetermined threshold value, the determination unit 702 determines that the unwinding process should be performed, but it goes without saying that: Changes in acceleration in a minute period from the beginning of the first spin-drying process until the rotational speed of the inner tub 3 reaches a predetermined spin-drying rotational speed should be excluded from the range of changes compared to the threshold value. That is, the change width from the threshold value should be the change width in the time period after the rotational speed of the inner tub 3 reaches the predetermined spin-drying rotational speed.

In addition, in the above-described embodiment, the determination unit 702 determines whether or not the unwinding process is necessary based on the change width of the acceleration of the inner tub 3 during the first dehydration process, but the physical quantity used in this determination is not limited to acceleration. As described above, when the shoes are in an unsuitable posture for dehydration and the dehydration is not properly advanced, there is a lack of change in the state of the inner tub 3 for accommodating the shoes. Therefore, it is possible to determine whether or not the shoes are in a posture unsuitable for dehydration using various physical quantities that vary with changes in the state of the inner tub 3 during the first dehydration process (ie, various physical quantities that reflect changes in the state of the inner tub 3 ) , and then determine whether the loosening process is required. It is preferable to use the physical quantity which changes with the change of the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3 in order to make a determination with simple and sufficient precision. Specifically, for example, the vibration, displacement, velocity, inclination, vibration amplitude, vibration period, natural vibration frequency, etc. of the inner tub 3 can be employed as the physical quantities used in the determination. In addition, as long as the total weight of the inner tub 3 and the shoes accommodated in the inner tub 3 can be directly measured, the total weight may be used as the physical quantity used for the determination.

In addition, it goes without saying that in the above-described embodiment, the sensor for acquiring the physical quantity used for determination is not limited to the acceleration sensor 6 . For example, it may also be a sensor that directly or indirectly senses the displacement, speed, slope, etc. of the inner tub 3 . In addition, for example, a vibration sensor that outputs the vibration value of the inner tub 3 based on acceleration, displacement, velocity, or the like may be used.

In addition, in the above-mentioned embodiment, the determination part 702 determines that the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration based on the detection value of the acceleration sensor 6 . Specifically, when the variation range of the acceleration of the inner tub 3 during the first dehydration process is equal to or less than a predetermined threshold value, it is determined that the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration. In addition, it is assumed that the loosening process is performed when such determination is made. However, when such a determination is made, the loosening process may not necessarily be performed. For example, when the determination unit 702 determines based on the detection value of the acceleration sensor 6 that the shoes accommodated in the inner tub 3 are in an unsuitable posture for dehydration, the determination may be made by the sound of an alarm, the lighting of a lamp, or the like. Notify the user of the situation.

In the above-described embodiment, the shoe washing machine 100 is a shoe washing machine installed in a coin laundry, but the shoe washing machine may be a home shoe washing machine.

Claims

A shoe washing machine is provided with: an outer tub capable of storing water; an inner tub accommodated in the outer tub; a brush unit provided in the inner tub; The shoe washing machine is characterized in that:

The control section executes:

The first dehydration process, the inner tub is rotated at a specified dehydration speed for a specified first time period;

a debonding process, after the first dehydration process, the brush unit is rotated at a prescribed debonding speed; and

In the second dehydration process, the inner tub is rotated at the dehydration rotation speed for a second time period that is longer than the first time period.
The shoe washing machine according to claim 1, wherein,

The control unit executes after the first dehydration process: a determination process to determine whether the loosening process should be performed,

In the determination process, when the variation range of the physical quantity of the inner tub during the execution of the first spin-drying process is equal to or less than a predetermined threshold value, it is determined that the unwinding process should be performed.
The shoe washing machine according to claim 2, wherein,

The physical quantity of the inner tub used in the determination process is the acceleration of the inner tub.
The shoe washing machine according to claim 2 or 3, characterized in that,

The control unit performs, after the loosening process, a repeating process, and repeating the first dehydration process and the determination process.
The shoe washing machine according to claim 4, wherein,

After the second dehydration process is performed, the repeat process is not performed and the second dehydration process is advanced.
The shoe washing machine according to any one of claims 2 to 5, characterized in that,

When it is determined in the determination process that the dehydration process should not be performed, the dehydration rotation speed is maintained unchanged, and then the second dehydration process is performed in the first dehydration process.
A shoe washing machine is provided with: an outer tub capable of storing water; an inner tub accommodated in the outer tub; a brush unit provided in the inner tub; The shoe washing machine is characterized in that:

Equipped with: an acceleration sensor to detect the acceleration of the inner barrel,

The control unit determines, based on the detection value of the acceleration sensor, whether or not the shoes accommodated in the inner tub are in an unsuitable posture for dehydration.