JPS6025988Y2 - coin operated washing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coin-operated washing machine whose lid cannot be opened during dehydration operation.

Coin-operated washing machines used in coin-operated laundry machines usually start operating when a coin is inserted and continue operating automatically until the spin-drying is completed, but for safety reasons, if the clothes loading lid is opened during the spin-drying operation, The dewatering motor is now stopped.

Then, when the lid is tightened, the remaining operation will resume, but even if a new coil is inserted at this time, the remaining operation will only continue.

However, if a user opens the lid in the middle of spin-drying, takes out clothes, and goes home, the next user will not be able to tell that the machine has stopped running, so they can simply put their own clothes in and insert the specified coins. , trying to do laundry.

However, in this case, only the remaining water is removed and the water stops after the water is removed, which may cause trouble between the user and the manager.

In order to solve this problem, we are considering turning on a lamp etc. when the lid is opened during spin-drying, and prompting the next user to manually set the time switch to the starting position. However, since lamps and the like may be overlooked, the present invention prevents the above problem by locking the lid so that it cannot be opened once the dehydration operation begins.

To explain based on the diagram below, 1 is a coin switch that temporarily closes the contact each time a coin is inserted, 2 is a relay contact 2', 2 that is connected in series with the coin switch and is connected when energized.
3 is a second program contact that closes only for the initial 3 minutes of the washing process, and by connecting this series circuit in series with the relay contact 2' and in parallel with the coin switch 1, a self-holding circuit is created. It consists of

A first program switch 4 is closed from one minute after the start of the washing process until the end of the spin-drying operation, and is connected in parallel with the relay contact 2'', and this parallel circuit is connected in series to the water level switch 5.

The contact of this water level switch is normally closed to the NC side, and is switched to the NO side when water reaches a specified level in the washing tub.

Reference numeral 6 denotes a washing circuit, which is equipped with a washing motor, a dewatering motor, a water supply valve, a drain valve, etc., but since this is a well-known circuit for washing machines, the details are omitted.

Reference numeral 7 denotes a locking device that locks the clothes loading lid when electricity is applied, and 8 a key switch connected in series with this locking device, the contacts of which are closed by inserting a key into the clothes loading lid and operating it.

Note that the key switch 8 may be opened when the key is inserted and closed when the key is pulled out.

A third program switch 9 closes the contact during dehydration operation, and is connected in parallel with the key switch 8.

The operation will be explained below.

When a predetermined coil is turned on, coin switch 1 is temporarily closed, current flows through relay 2, and relay contacts 2' and 2'' are closed.

When the relay contact 2' closes, current continues to flow to the relay 2 through this relay contact and the second program switch 3, so the relay contact 2'.

2'' is self-held in the closed state.

As a result, current flows into the washing circuit 6 through the relay contact 2'' and the NC side contact of the water level switch 5, opening the water supply valve and supplying ice into the washing tub.

When the water is supplied to the specified level, the water level switch 5 switches to the NO side contact to start washing.

One minute after washing, the first program switch 4 closes the contact, so three minutes later the second program switch 3 opens, cutting off the power to the relay 2, and even if the relay contact 2'' opens, the first program switch 4 and Current continues to flow through the washing circuit 6 via the water level switch 5, and washing continues.

As the washing progresses in this manner and the dehydration process begins, the third program switch 9 closes and current flows through the locking device 7, locking the clothes input lid in the closed state.

Therefore, it is possible to protect the user from the danger of opening the clothes loading lid and putting one's hand into the rotating washing tub during spin-drying, and even if the clothes are taken out after the rotation has stopped, it is possible to prevent the clothes from stopping during spin-drying. This can prevent the above-mentioned troubles from occurring.

Note that if you close the key switch 8 by key operation,
The clothes input lid cannot be opened not only during the spin-drying operation but also during the entire process, and it is possible to prevent clothes from being stolen during washing.

In this case as well, when spin-drying is completed, the first program switch 4 opens and no current flows to the locking device 7, so the lid can be opened, and even if the washing is finished, the user is not there. There is no drawback that the next user will be unable to do the next wash forever.

As described above, in this case, the clothes loading lid cannot be opened during spin-drying, so if a user takes out the clothes during spin-drying and goes home, the next user can load the specified coil. This eliminates the inconvenience that only the remaining dehydration operation is performed even though the dehydration operation has been completed, and stability can also be increased since the lid cannot be opened during dehydration.

Furthermore, the cover can be locked during the entire process by key operation, which reduces the risk of theft.Also, if the locking device 7 is connected in series with the first program switch 4, which opens the contact after washing is completed, as in the embodiment. Even if the lid is locked with the key, the lid can be opened and the clothes taken out after the entire process is completed, so if the user is not present, the next user will not be able to wash the laundry even after the laundry is completed. This problem can also be solved.

[Brief explanation of the drawing]

Figure 1 is an electrical circuit diagram of the coin-operated washing machine according to the invention, and Figure 2 is a programming diagram. 7... Lock device, 8... Key switch, 9... Third program switch, 4...
...First program switch.

Claims (1)

[Scope of utility model registration request] A locking device that locks the clothes loading lid when energized; a key switch connected in series with the locking device that closes the contact by key operation; and a second key switch connected in series with the key switch and the locking device that opens the contact at the end of the entire stroke. A coin-operated machine that is equipped with one program switch and another program switch that is connected in parallel with the key switch and closes only during the dehydration process.