JPS6411290B2 - - Google Patents

Description

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

(b) Prior Art As a conventional example, there is a shoe cleaning machine shown in Japanese Patent Application Laid-open No. 58-36523 (see FIG. 4).

That is, during washing, the shoes are washed by rubbing the shoes fixed on the shoe hanger 51 with the brush 52, and during dehydration, the dehydration tank 53 is moved to the shoe hanger 5 in the tank.
1 and a brush 52, the shoes are centrifugally dehydrated by rotating at high speed.

However, this shoe washing machine has a shoe hanger 51.
The structure is complicated and the cost is high because it requires a shoe holding member.

Furthermore, if the shoe hanger 51 is not provided and the shoes are left in a free state in the tank, the orientation of the shoes will be uneven during dehydration, and if the sole of the shoe, which is not water permeable, faces the tank wall, the dehydration rate will be higher. decreases dramatically.

(c) Problems to be Solved by the Invention The present invention aims to reduce costs and improve dewatering performance in a shoe washer.

(d) Means for Solving the Problems The shoe cleaning machine of the present invention includes a friction means for rotating a brush provided in the cleaning tank to rub the shoes disposed between the brush and the tank wall; It has a drive means for rotating the cleaning tank at high speed, and the shoes are dehydrated by alternately operating the drive means and the friction means.

(e) Effect: By temporarily suspending dewatering and rotating the brush, the direction of the shoes in the tank is changed, reducing the chance of the soles facing the tank wall.

(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 a commercial frequency synchronous 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. However, these large amounts of foam are difficult to be discharged together with the cleaning solution, and not only do they interfere with the rotation of the inner tank 4 during the next dehydration process, but 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 above-mentioned drainage process, and the rinsing process takes longer. It can be shortened and the amount of water used can also be reduced.

Incidentally, opening of the water supply valve 13 and 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 corrected 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 about 30% higher than that of 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 cleaning machine of the present invention does not require any special member for fixing shoes, so the structure is simple and costs can be reduced.

Furthermore, by temporarily suspending dehydration and rotating the brush, the orientation of the shoes in the tank is changed, which reduces the number of shoes that are insufficiently dehydrated due to the soles being in contact with the tank wall. Therefore, all shoes can be dehydrated almost uniformly, and dehydration performance can be improved.

[Brief explanation of the drawing]

FIG. 1 is an internal mechanism diagram of a shoe cleaning machine according to the present invention.
FIG. 2 is a block circuit diagram of the control section, FIG. 3 is a plan view of the interior of the inner tank, and FIG. 4 is a sectional view of the internal mechanism of a conventional shoe washer. 4...Inner tank (cleaning tank), 6...Brush shaft, 7...
... Brush, 8... Drive motor, 9... Power transmission mechanism.

Claims (1)

[Claims] 1. A brush disposed in the cleaning tank is rotated to rub a shoe disposed between the brush and the tank wall, and a drive unit rotates the cleaning tank at high speed. A shoe cleaning machine characterized by dehydrating shoes by alternately performing the following steps.