JPH0534610Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Industrial Application Field In this invention, for example, by pressing the tea supply button, the water valve is energized and opened.
This invention relates to a dispenser that automatically dispenses tea by supplying hot water to a tea strainer containing tea leaves.

b. Conventional technology Conventionally, as an automatic tea dispenser which is a dispenser,
For example, the main body of an automatic tea dispenser and a cup supplying device are integrated, and by pressing the cup supply button of the cup supplying device, a cup is supplied to the cup outlet, and the cup is placed on the tea outlet, and the cup is placed in the tea outlet. It is known that tea is poured into a cup by pressing a supply button.

c Problems that the invention aims to solve In an automatic tea dispenser configured as described above, if the water valve for tea supply, which should be closed, continues to open due to some kind of malfunction, There were issues such as users getting burned and large amounts of hot water being wasted.

This invention was made to solve the above-mentioned problems, and the purpose is to provide a dispenser that does not cause burns to the user or waste a large amount of hot water.

d Means for Solving the Problem The dispenser according to this invention is electrically connected to the water valve WV _{1 .}
The protective timer TM is energized and excited when the water valve WV 1 is opened, and after the excitation time has elapsed to supply a predetermined amount of hot water to the editing section 15, the water valve WV ₁ is energized and the water valve WV ₁ is closed by cutting off the energization. Display section 11 is electrically connected to the water valve WV 1 and turns on and lights up at the same time as the water valve WV ₁ is closed to indicate an abnormality in the water valve WV ₁ .
It is equipped with the following.

e Effect In this device, the protection timer TM cuts off the power supply to the water valve WV ₁ after the opening time of the water valve WV ₁ has elapsed to supply a predetermined amount of hot water to the knitting section 15. ₁ is closed and water valve WV ₁
At the same time as the water valve WV 1 is closed, the display section 11 is energized and lights up, indicating that there is an abnormality in the water valve WV ₁ .

f. Example Hereinafter, an example of this invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing an embodiment of this invention, in which a back panel 2 extending horizontally and vertically is provided at the top of a counter 1, and its peripheral edge is surrounded by a panel frame 3. Three automatic tea dispensers 5, which are dispensers, are built into the back panel 2, with their peripheral edges surrounded by a frame 4. A cup supply device 7 is installed in the back panel 2 between the automatic tea dispensers 5. Above the automatic tea dispenser 5, an exhaust port 8 is built into the back panel 2 for forcibly discharging steam from the automatic tea dispenser 5 when tea or hot water as raw materials is poured out to the outside of the machine. There is.

There is a tea outlet 1 at the bottom of the front door 9 of the automatic tea dispenser 5.
0 is formed. A display section 11 is provided at the top of the front door 9 to indicate the operating status of the automatic tea dispenser 5.

2 is a front sectional view of the automatic tea dispenser 5 shown in FIG. 1, and FIG. 3 is a side sectional view of the automatic tea dispenser 5 shown in FIG. A tea caddy 13 passes through the back panel 2.
Tea leaves are supplied to the tea caddy 13 from the back side of the tea caddy 13. A tea strainer 15 is provided at the lower part of the tea caddy 13 as a knitting section in which a predetermined amount of tea leaves from the tea caddy 13 is received through the operation of a tea leaf exchanging mechanism 14.
A tea-leaf container 16 is provided below the tea strainer 15, and the tea leaves from the tea strainer 15 are discarded into this tea-leaf container 16 through a tea discharge chute 17.

A heater (not shown) is provided inside the main body 12.
A hot tank 18 having a built-in hot tank is provided.
A first water valve 1 is attached to this hot tank 18.
This first water valve 19 is opened by pressing a tea pouring button attached to the front door 9, and the hot water in the hot tank 18 is poured into the tea strainer 15. In addition, 21 is an exhaust duct 21 that penetrates the upper surface of the main body 12,
This tip is connected to the exhaust port 8. 22 is a fan attached to the exhaust port 8.

FIG. 4 is a circuit diagram of the automatic tea dispenser 5. One end of the normally closed contact TM _b of the protective timer TM is connected to the first power line L ₁ , and the other end is connected to the first water valve 19 (WV ₁ in the circuit diagram) and the second water valve WV ₂ (not shown in Figures 2 and 3),
Drive motor M and fan 22 (in the circuit diagram
FM).

The first water valve WV ₁ is connected to the first relay X ₁
and connected to the first terminal T ₁ of the control board PCB. The second water valve WV ₂ is connected to the second relay X ₂ and to the second terminal T ₂ of the control board PCB. The drive motor M is connected to a third relay X ₃ and to a third terminal T ₃ of the control board PCB. One end of the fan 22 is connected to the first power line _L1 , and the other end is connected to the second power line
Connected to L ₂ . The other ends of the first relay X ₁ , the second relay X ₂ and the third relay X ₃ are connected to the first power supply line L ₁ . Note that the first water valve WV ₁ and the second water valve
WV ₂ has a noise killer CR built in parallel.

Normally open contact _of the first relay X ₁ , second relay
One end of each of the normally open contact X ₂₁ of X ₂ and the normally open contact _{X 31 of} the third relay X 3 and the first terminal C ₁ of the tea leaf exchange counter C are connected to the first power supply line L ₁ The other ends of each of the normally open contact X ₁₁ of the first relay X ₁ , the normally open contact X ₂₁ of the second relay X ₂ and the normally open contact X ₃₁ of the third relay X ₃ and The second terminal _C2 of the counter C for the number of tea exchanges is each connected to a protection timer TM.
connected to one end of the Also, a protection timer
The other end of TM is connected to the second power line _L2 .

One end of the normally open contact TM _a of the protective timer TM is connected to the first power supply line _L1 , and its normally open contact
The other end of TM _a is connected to the display section 11 (L ₁ in the circuit diagram). One end of the display section 11 is connected to the normally open contact TM _a , and the other end of the display section 11 is connected to the second power supply line _L2 .

The third terminal _C3 of the tea leaf exchange counter C is connected to the first power supply line _L1 ,
4th terminal of counter C for number of tea leaf exchanges
_C4 is connected to the second power line _L2 . In addition, the fifth terminal C ₅ and the sixth terminal C ₆ of the tea leaf exchange counter C are connected to the third relay.
X ₃ are connected to normally open contacts X ₃₃ respectively.

In the automatic tea dispenser 5 configured as described above, by pressing the cup release button (not shown) of the cup supply device 7, the cup is released from the cup outlet 2.
3. When the user wants tea and presses the tea button (not shown) on the operation board 30, the fourth terminal _T4 and the first terminal _T1 on the control board PCB are electrically connected. Connected to the first water valve WV ₁
and the first relay _X1 are energized, the first water valve _WV1 is opened, and the hot water in the hot tank 18 passes through the tea strainer 15 to become tea, and the tea is poured into a cup.

Normally, the cup is filled with tea within a few seconds, but if something goes wrong, the first water valve WV ₁
continues to be energized and released, the _first relay
also continues to be energized, _the normally open contact of the first relay X ₁
continues to close, and as a result, the protection timer TM also continues to be energized. When the preset time of the protection timer TM has elapsed, the normally open contact TM _a closes, and the display section 11 is energized and lights up to indicate an abnormality in the water valve WV ₁ . At the same time, the normally open contact TM _b opens, and as a result, the power to the first water valve WV ₁ , the second water valve WV ₂ , the driving motor M, and the fan 22 is cut off, and the function as a dispenser is stopped. .

Also, when the user wants hot water and presses a hot water button (not shown) on the operation board 30,
4th terminal on control board PCB
T ₄ and the second terminal T ₂ are electrically connected,
The second water valve WV ₂ and the second relay X ₂ are energized, the second water valve WV ₂ is opened, and the hot water in the hot tank 18 is poured into the cup through the second water valve WV ₂ .

Normally, the cup is filled with hot water within a few seconds, but if something goes wrong, the second water valve WV ₂
continues to be energized and released, the second relay X ₂
also continues to be energized, the normally open contact of the second relay X ₂ X ₂₁
continues to close, and as a result, the protection timer TM also continues to be energized. Then, when the time set in advance by the protection timer TM has elapsed, the normally open contact TM _a of the protection timer TM closes, and the display section 11 is energized and lights up to indicate an abnormality in the water valve WV ₂ . At the same time, the normally closed contact TM _b of the protective timer TM
opens, so that the first water valve WV ₁ ,
The power supply to the second water valve WV ₂ , the driving motor M, and the fan 22 is cut off, and the function as a dispenser is stopped.

Furthermore, when it is time to replace the tea leaves, the fourth terminal T ₄ and the third terminal T ₃ on the control board PCB are electrically connected, and the drive motor M and the third relay X ₃ are connected. is energized and excited, the drive motor M is driven, and the tea leaves in the tea strainer 15 are exchanged with the tea leaves in the tea caddy 13. However, if the drive motor M is driven due to some abnormality and the third relay X ₃ continues to be energized, the normally open contact X ₃₁ of the third relay X ₃ continues to close, and as a result, the protection timer TM also closes. Continue to excite. Then, when the time set in advance by the protection timer TM has elapsed, the normally open contact TM _a of the protection timer TM closes.
The display unit 11 is energized and lights up, and the drive motor M
An error is displayed. At the same time, the normally closed contact TM _b of the protective timer TM opens, and as a result, the first water valve WV ₁ and the second water valve
Power to WV ₂ , drive motor M, and fan 22 is cut off, and the function as a dispenser is stopped.

Furthermore, the number of times tea leaves are replaced is determined by the amount of tea leaves that enter the tea caddy 13, but when that number is reached,
When the tea leaves in the tea caddy 13 run out, its function as a dispenser stops. In other words, each time the drive motor M is energized and driven,
The normally open contact X ₃₁ of the third relay X ₃ closes, the fifth terminal C ₅ and the sixth terminal C ₆ of the counter C
The number of times the tea leaves are exchanged is input to the counter C through this. Then, when the preset number of tea leaf exchanges is reached, the second terminal C ₂ of the counter C
and the third terminal _C3 are electrically connected,
The protection timer TM is energized. Then, when the protection timer TM passes the preset time,
The normally open contact TM _a of the protection timer TM is closed, and the display section 11 is energized and lights up, indicating that there are no tea leaves in the tea caddy 13 . At the same time, the normally closed contact TM _b of the protective timer TM opens, resulting in the first
water valve WV ₁ , second water valve
The power supply to WV ₂ , drive motor M, and fan 22 is cut off, and the function as a dispenser is stopped.

In the above embodiment, an automatic tea dispenser was explained as a dispenser, but the present invention can also be applied to an automatic tea machine, an automatic coffee machine, etc.

Furthermore, in the above embodiment, the automatic tea dispenser 5 and the cup supply device 7 were separated.
This invention can also be applied to a device in which the dispenser and the cup supply device are integrated and the cup is directly supplied to the tea outlet.

g. Effects of the invention As explained above, the dispenser of this invention uses a protective timer TM to prevent water valves.
After the opening time of WV ₁ has elapsed to supply a predetermined amount of hot water to the editing section 15, the power supply to water valve WV ₁ is cut off, and water valve WV ₁ is closed to prevent burns to the user due to the continued pouring of hot water. This avoids the risk of water leaking, and there is no waste, such as when a large amount of hot water is disposed of. Further, since the display section 11 is energized and lights up at the same time as the water valve WV ₁ is closed, the user can know from the display section 11 whether the water valve WV ₁ is malfunctioning.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing an embodiment of this invention, Fig. 2 is a front sectional view of the automatic tea dispenser shown in Fig. 1, and Fig. 3 is a side sectional view of the automatic tea dispenser shown in Fig. 1. FIG. 4 is an electrical circuit diagram of the automatic tea dispenser shown in FIG. 1. 5... automatic tea dispenser, 11... display section, 13...
Tea caddy, 14...Tea leaf exchange mechanism, 15...Tea strainer, 19...First water valve, _L1 ...First power line, _L2 ...Second power line, TM
...Protection timer, TM _a ...Protection timer normally open contact, TM _b ...Protection timer normally closed contact, X ₁
...First relay, X ₁₁ ... Normally open contact of first relay, X ₂ ... Second relay, X ₂₁ ... Normally open contact of second relay, X ₃ ... Third relay , _X31 , _X33
...Normally open contact of the third relay. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of claim for utility model registration] By pressing the supply button, the water valve
In the dispenser, which is electrically connected to the water valve WV ₁ and is energized and energized when the water valve WV ₁ is opened, hot water is supplied to the knitting section 15 containing raw materials when WV ₁ is energized and opened. A protection timer TM is electrically connected to the protection timer TM and is electrically connected to the protection timer TM, which shuts off the water valve WV ₁ by cutting off the power to the water valve WV ₁ after the excitation time has elapsed for supplying a predetermined amount of water to the editing section 15. A dispenser characterized by comprising a display section 11 that is energized and lights up at the same time as the water valve WV ₁ is closed to indicate an abnormality in the water valve WV ₁ .