JPH0321740Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a shoe cleaning machine.

(B) Prior Art Generally, fully automatic washing machines for washing clothes, after the washing process and before moving on to the rinsing process, drain the detergent liquid from the tank and then rotate the tank at high speed for a predetermined period of time. Spin clothes. In other words, water used for rinsing can be saved by reducing the amount of liquid contained in the clothes as much as possible before rinsing.

However, in this case, during the spin-drying process, the detergent solution contained in the clothes is released all at once and exceeds the drainage capacity of the washing machine, so the detergent solution is agitated by the rotation of the tank and foams. In addition to inhibiting rotation, it remained until the next rinsing step, making the rinsing liquid cloudy and impairing the rinsing effect.

Therefore, in order to prevent the occurrence of these problems, Japanese Patent Application Laid-Open No. 125566/1983 discloses that foaming of the detergent solution is suppressed by rotating the tank intermittently during the dewatering process.

However, the purpose of this is to suppress foaming during dehydration, and since shoe washing machines use a relatively hard brush to scrub the shoes and stir the detergent solution, the A considerable amount of foam is generated during this washing, and the desired effect cannot be obtained with the above-mentioned foam suppressing material during dehydration.

(c) Problems to be solved by the invention This invention eliminates a considerable amount of foam generated during the cleaning process in a shoe washing machine during the drainage process before the rinsing process, and also discharges most of the detergent components. This prevents the influence of foam on the rinsing process, prevents the rinsing effect from deteriorating, and saves water and time spent on the rinsing process.

(d) Means for solving the problem The present invention provides a means for supplying water into the washing tank and a method for supplying water to the washing tank in a shoe washing machine that automatically performs washing, rinsing, and dewatering steps according to a program. A means for discharging the cleaning liquid in the tank, and a driving means for rotating the cleaning tank, and during the draining process between the washing and rinsing processes, after the cleaning liquid is discharged by the discharge means, water is supplied by the water supply means and the driving means The cleaning tank is made to rotate intermittently at the same time.

(e) Action: Water is supplied into the cleaning tank and the tank is rotated intermittently to disperse the water throughout the tank, eliminate most of the bubbles remaining in the tank, and discharge them together with the water.

(f) Examples Embodiments of the present invention will be described based on the drawings.

In FIG. 1, 1 is a machine frame of a shoe washing machine, 2 is an outer tank that is elastically supported by a hanging rod 3 within the machine frame 1 and serves as a water receiver, 4 is installed inside the outer tank 2, An inner tank is a cleaning tank having a large number of dehydration holes around the periphery, 5 is a balance ring, 6 is a brush shaft erected at the center of the bottom of the inner tank 4, and brushes 7 are installed radially from the periphery. Note that 7a is an auxiliary brush projected from the bottom area of the brush shaft 6. 8 is a drive motor, and a power transmission mechanism 9 is connected to the inner tank 4 and the brush shaft 6.
During cleaning, the brush shaft 6 is reversed at regular intervals, and during dehydration, the inner tank 4 and the brush shaft 6 are
Rotate both at high speed in one direction.

Reference numeral 10 denotes a shoe opening 1 formed above the inner tank 4.
1 is a lid body for closing 1, 12 is an operating section installed in the upper rear part of the machine frame 1, 13 is a water supply solenoid valve provided in the operating section 12, and 14 is a valve for connecting water from the water supply solenoid valve 13 to the inner tank 4. The water supply channel 15 is a drain solenoid valve interposed in the drain channel 15, and the drain channels 15 and 16 are for discharging the water in the outer tank 2.

FIG. 2 shows a block circuit diagram of the control section.
7 is a microcomputer that is the center of control, 1
8 is an external display circuit that turns on and off light emitting diodes to indicate the progress status of each process; 19 is a key input circuit that sets the time of each process; and 20 is used to detect the water level in the tank and abnormal vibrations in the tank. Detection circuit, 21
2 is a transmitting circuit that sends a clock signal and a reset signal to the microcomputer 17; 22 is a buzzer circuit that notifies abnormality and process completion; 23 is an applicable frequency synchronization pulse generation circuit used for time processing of the microcomputer 17; and 24 is each A power supply circuit supplies power to the circuit, 25 is a load such as a motor or a solenoid, and 26 is a load power control circuit that controls the power of the load.

The operation will be explained based on this configuration.

First, shoes A such as sneakers are placed between the brush shaft 6 and the wall of the inner tank 4, and after adding detergent and a predetermined amount of water, the cleaning process is started by driving the drive motor 8. In this cleaning step, the brush shaft 6 is turned left and right and the surface of the shoe A is scrubbed with the brush 7.

When the cleaning process is completed, the drain electromagnetic valve 16 is opened to discharge the cleaning liquid in the tank in order to proceed to the next dewatering process. In this drainage process,
Once the liquid is discharged, the water supply solenoid valve 13 is opened to supply a predetermined amount of water into the tank, and at the same time, the drive motor 8 is intermittently energized to rotate the inner tank 4 intermittently for a certain period of time ( The drain valve 16 remains open).

In other words, in the shoe cleaning machine of this embodiment, since the cleaning liquid is stirred by the relatively hard brush 7 during the cleaning process, a large amount of foam is generated, and these large amounts of foam are not mixed with the cleaning liquid. It is difficult to discharge, and not only does it get in the way of the rotation of the inner tank 4 during the next dehydration process, but it also
It remains until the subsequent rinsing process and affects the rinsing action. Therefore, by supplying water into the tank and rotating the tank intermittently, the water is dispersed throughout the tank, and most of the bubbles adhering to the inner and outer tanks 2 and 4 and the inner wall surface of the outer tank are extinguished. Discharge.

In particular, in a shoe washer like the one in this example, which handles shoes and other items with relatively low water content, more than 80% of the detergent components are discharged just in the aforementioned drainage process, and the rinsing process takes longer. It can be shortened and the amount of water used can also be reduced.

Note that the opening of the water supply valve 13 and the rotation of the tank may be started when a certain amount of the cleaning liquid has been discharged, even if not all of the cleaning liquid has been discharged.

Now, after the drainage process, a dehydration process is performed.
At this time, the shoes A in the tank repeatedly rotate on their own axis due to friction with the brush 7 during cleaning, and at the start of dehydration, some shoes A have their soles in contact with the tank wall as shown in Figure 3, while others There are various types of parts, such as the parts that are in contact with each other.

Therefore, in order to perform dehydration in this state, the inner tank 4
When the shoe A is rotated at high speed, the water contained in shoe A moves inside the shoe toward the tank wall due to centrifugal force. Therefore, water movement is stopped in this part, and the dehydration rate is significantly lower than in other parts.

Therefore, in this embodiment, after performing a dewatering operation corresponding to the driving means of rotating the tank at high speed for a certain period of time, the dehydration operation is temporarily stopped, and the friction of reversing the brush shaft 6, which is the same as in the cleaning step, is performed. The cleaning operation corresponding to the method is performed for a short time, and then the second half of the dehydration operation is performed again.

That is, the dewatering process is temporarily interrupted, and the brush shaft 6
By reversing , shoe A is rotated again and the direction of shoe A is changed.

By doing this, the sole of the shoe, which had previously been in contact with the tank wall, is no longer in contact with the tank wall, and the lack of dehydration is reliably resolved in the latter half of the dehydration operation. Also, some shoes may have their soles touching the tank wall at this time, but in this case there is no problem because the water has been sufficiently removed during the first half of the water removal operation. In the experiment, all shoes were dehydrated almost equally, and the dehydration rate was approximately 30% higher than in shoes that did not change direction during the dehydration process.

After that, a rinsing process (same operation as the washing process without using detergent), a drainage process, and a dehydration process are performed, and the series of processes is completed.

In this embodiment, the above-mentioned brush shaft 6 is
Although the reversing operation was inserted once, if the number of insertions is increased, the probability that the direction of the shoe will change will be higher, and an even better dehydration effect can be obtained.

(G) Effects of the invention The shoe washing machine of the invention eliminates most of the considerable amount of foam generated during the cleaning process during the drainage process before the rinsing process, thereby preventing the effects of the foam on the next rinsing process. This prevents the rinsing effect from decreasing.

Moreover, since most of the detergent components in the tank can be discharged during the draining process, water and time spent during the rinsing process can be saved.

[Brief explanation of drawings]

Figure 1 is an internal mechanism diagram of the shoe cleaning machine according to the present invention.
FIG. 2 is a block circuit diagram of the control section, and FIG. 3 is a plan view of the inside of the inner tank. 4... Inner tank, 6... Brush, 8... Drive motor, 9... Power transmission mechanism, (8 and 9 constitute a driving means), 13... Water supply solenoid valve, 14... Water supply channel ( 13 and 14 constitute the water supply means), 1
5... Drain channel, 16... Drain solenoid valve, (15,1
6 constitutes the ejection means).

Claims (1)

[Scope of utility model registration request] In a shoe washing machine that automatically performs washing, rinsing, and dewatering steps according to a program, the washing tank includes a means for supplying water into a washing tank, a means for discharging a washing liquid in the washing tank, and a means for rotating the washing tank. and a driving means, during the drainage step between the washing and rinsing steps,
A shoe cleaning machine characterized in that, after the cleaning liquid is discharged by the discharge means, water supply by the water supply means and intermittent rotation of the cleaning tank by the drive means are performed at the same time.