JPH0633930B2 - Cooling / heating switching device for vending machines - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling / heating switching device for an automatic vending machine that cools or heats a packaged beverage or the like for sale.

2. Description of the Related Art In recent years, hot and cold type (hereinafter referred to as H & C) is mainly used as a beverage vending machine with a packaging container (hereinafter referred to as vending machine), and various types of cooling and heating devices and its switching device are available. Has been adopted.

An example of the conventional cooling / heating switching device described above will be described below with reference to the drawings.

4 to 8 show a cooling and heating switching device of a conventional H & C vending machine. Reference numeral 1 is a main body of a vending machine having a heat insulating wall, and a heat insulating partition wall 2 is provided between the left and right first storage chambers 3 and second
It is formed in the storage chamber 4. 5a is a product storage column provided in the first storage chamber 3, and 5b is a product storage column provided in the second storage chamber 4. And the first storage chamber 3 and the second
A main door 7 having a heat insulating door 6 that covers the front opening of the storage chamber 4 is attached to the front surface of the main body 1. Further, a fan 8a, a fan ring 9a, and a heater 10 are attached to and installed in the box body 11 at the inner bottom of the first storage chamber 3. Further, a blower 8b, a fan ring 9b, and an evaporator 12 are attached to each other and installed in the lower rear part of the second storage chamber 4. Also the main body 1
In the lower part of the compressor 13, a compressor blower 14, a condenser 1
5 is installed to form a cooling system together with the evaporator 12. Further, a first ventilation port 16a and a second ventilation port 16b are provided in the lower part of the heat insulating partition wall 2 at regular intervals in the front and rear.

First and second ventilation ports 16 provided in the heat insulating partition wall 2
Shutters 18 which are vertically held by guide rails 17 are provided on the side surfaces of a and 16b. At the rear of the shutter 18, the first and second ventilation ports 16a and 16b are provided.
Is provided with a third ventilation port 16c at an intermediate position, an operation lever 19 for guiding and moving the shutter 18 by the guide rail 17 is provided at a front portion, and a second portion bent at a right angle is provided at a rear portion. A shutter 20 is provided.

The box 11 having the blower 8a, the fan ring 9a, and the heater 10 attached thereto is provided with a fourth vent 16d that is opened and closed by the second shutter 20 by forming a square hole. The side surface of the box body 11 located on the heat insulation partition wall 2 is opened to abut the guide rail 17 for guiding the shutter 18, and the shutter 18 moves forward, so that the second ventilation port provided on the heat insulation partition wall 2 is provided. The second shutter 2 provided at the rearmost portion of the shutter 18 at a position where 16b and the third ventilation port 16c provided at the shutter 18 match.
0 is arranged and attached at a position where it abuts on the back surface of the box 11. Commodity guide chutes 21a and 21b are provided above the fan rings 9a and 9b, and a front part has a gap a with the main body 1 in order to operate the operation lever 19.
Is provided.

FIG. 8 shows an electric circuit. A cold / hot switch 22 installed outside the refrigerator, a thermostat 23 installed near the heater 10, a temperature fuse 24, and the heater 10 are connected in series. The blowers 8a and 8b of the first and second storage chambers 3 and 4 are directly connected to a power source, and the compressor blower 14 and the compressor circuit including the compressor 13 are respectively connected in series with a cooling thermostat 25 that detects the temperature of the evaporator 12. It is connected.

The operation of the cooling / heating switching device configured as described above will be described below.

First, set the cold / hot switch 22 provided outside the refrigerator to "warm"
The heater 10 of the storage chamber 3 is energized and heated, and at the same time the main body 1
When the operating lever 19 is pushed inward from the gap a between the product guide chute 21a and the product guide chute 21a, the shutter 18 is guided by the guide rail 17 and is moved inward so that the third ventilation port 16c which coincides with the second ventilation port 16b is opened. Moved to the first and second ventilation ports 16
Both a and 16b are closed, and the fourth ventilation port 16d closed by the second shutter 20 is opened. At this time, the air passage is the fourth ventilation port 16d → the heater 10 → the fan ring 9a → the blower 8a → the product storage column 5a → the fourth ventilation port 1
6d. The cooling system of the compressor 13, the evaporator 12, and the like is controlled by the cooling thermostat 25 to cool the second storage chamber 4. The air passage at this time is formed as evaporator 12 → fan ring 9b → blower 8b → commodity storage column 5b → evaporator 12.

Next, set the cold / hot switch provided outside the refrigerator to "cold"
When the operation of the heater 10 in the storage chamber 3 is stopped and the operating lever 19 is pulled toward the front side through the gap a between the main body 1 and the product guide chute 21a, the shutter 18 is guided by the guide rail 17.
Is guided to and moved to the front. And shutter 18
The third ventilation port 16c provided on the above-mentioned side matches the second ventilation port 16b on the front side provided on the heat insulating partition wall 2. Further, the first ventilation port 16a of the heat insulating partition wall 2 at the rear of the rearmost portion of the shutter 18 is also opened. Also, the shutter 18
The second shutter 20 attached to the box contacts the back surface of the box body 11, and the fourth ventilation port 16d provided in the box body 11 is closed. The air path of the first storage chamber 3 at this time is the evaporator 12 provided in the second storage chamber 4 → the fan ring 9b of the second storage chamber 4 and the cavity of the evaporator 12 → the second ventilation of the heat insulating partition wall 2. Mouth 16b → Blower 8a of the first storage chamber 3 → Product storage column 5a of the first storage chamber 3 → First ventilation port 16a of the heat insulating partition wall 2 → Evaporator 12 provided in the second storage chamber 4 and the first storage The product storage column 5a in the chamber 3 is cooled. On the other hand, the product storage column 5b of the second storage chamber 4 is provided with the evaporator 12
→ Fan ring 9b → Blower 8b → Product storage column 5b
→ It is cooled by the air passage of the evaporator 12.

As described above, the first and second storage chambers 3 are heated by the operation of the cold / hot switch 22 provided outside the refrigerator and the operation lever 19 of the shutter 18 located below the product guide chute 21a.
Two modes are possible: an operation of cooling the storage chamber 4 and an operation of cooling both the first storage chamber 3 and the second storage chamber 4.

Problems to be Solved by the Invention However, in the above configuration, it is necessary to insert the hand through the gap a between the product guide chute 21a and the main body 1 to operate the operation lever 19, which is extremely difficult to operate. Is. Further, since the operation lever 19 is located at the lower portion, mischief or the like from the product outlet 37 to the operation lever 19 is indispensable. Further, since the cold / hot temperature changeover switch 22 is provided outside the refrigerator (not shown) and is operated differently from the operation of the operation lever 19, an error of the cold / hot temperature changeover operation is caused, which causes cooling and heating failure. Had a point.

In view of the above problems, the present invention provides a cold / hot switching device which is easy to operate without erroneous operation of the operating lever.

Means for Solving the Problems In order to solve the above problems, the cooling / heating switching device of the present invention has an operating lever, a shutter, and a cold / hot switching switch built in a lower part of a heat insulating partition wall, and the operating lever is a product guide. It is placed on the top of the chute.

Action The action of the technical means of the present invention is as follows.

That is, since the operation lever built in the heat insulation partition wall and provided on the upper part of the product guide chute can be seen from the front of the first storage chamber, it can be easily operated, and can be located above the product take-out port and the product guide chute. Because it is located, it is difficult to mischief from the outside. In addition, since it has a built-in cold / heat switch that detects the operation of the operation lever, the shutter operation and the energization control of the heater are matched, and reliable cooling and heating can be switched only by operating the operation lever. Of.

Embodiments A cooling / heating switching device according to an embodiment of the present invention will be described below with reference to the drawings. The same structures as those in the related art will be designated by the same reference numerals and detailed description thereof will be omitted. First
The figure is an exploded perspective view of the lower part of the storage chamber, and FIG. 2 is an exploded perspective view of the lower part of the heat insulating partition wall. FIG. 3 is a sectional view of the mounting.

In the lower part of the heat insulation partition wall 26, a recess 27 extending in the front-rear direction is formed.
A frame 27 having a is configured. Frame 2
The first ventilation port 16
a, the second ventilation port 16b is provided, and the lower part of the shutter 29 having the third ventilation port 16c at the lower part is in contact with the guide rail part 27b for guiding the operation in the front-rear direction and the recess 2
Stops 27c and 27d for restricting the operating position of the shutter 29 are provided in front of and behind 7a.

An operation lever 30 for guiding and moving the guide rail portion 27b of the frame 27 is attached to a front end portion of the shutter, and a second end which is flush with a back vertical surface is attached to a rear end portion thereof.
A shutter 20 is attached. The operating lever 3
0 has a long hole 30c corresponding to the operating distance, and is attached to the base 28 with a stepped screw 34 at this portion.
The front portion of the operating lever 30 forms an operating portion as a U-shaped portion 30b, and a convex portion 30a is formed in a part of the lower portion.

The base 28 is provided with a cool / heat switching switch 22, a detection lever 31 pivotally supported by a spring 32, and a pin 33 so as to detect the movement of the convex portion 30a of the operation lever 30. The shutter 20, the operating lever 30, the cold / hot switch 22, and the detection lever 31 are all arranged and mounted on the same side of the base 28, and the second shutter 20 projects in the opposite direction from a square hole 29a formed in the rear portion of the base 28. . The U-shaped portion 30b at the frontmost portion of the operating lever 30 is slightly exposed from the square hole 28b provided at the front portion of the base 28. The upper portion of the base 28 is entirely formed into a dogleg-shaped bent portion 28c. The base 28 configured in this manner is assembled so that the shutter 29, the operating lever 30, and the cold / hot temperature changeover switch 22 are built in the concave portion 27a of the frame 27, and the base screw 28 is attached by the mounting screw 35 to the heat insulating partition wall 26. It is attached to the bottom. The merchandise guide chute 35 is set so as to be positioned below the operation lever, and the lower part is fixed to the main body 1.

Next, the operation of the cooling / heating switching device in the configuration of this embodiment will be described.

When the foremost U-shaped bent portion 30b of the operation lever 30 is pushed inward, the shutter 29 is guided by the lower guide rail portion 27b of the frame 27 to be moved inward, and abuts on the stop portion 27d. The third ventilation port 16c of the shutter 29 is out of alignment with the second ventilation port 16b of the frame 27, and the first and second ventilation ports 16a and 16b are the shutter 2
Both are closed by 9. Then, the movement of the second shutter 20 brings the closed fourth ventilation port into an open state. On the other hand, the movement of the operation lever 30 also moves the convex portion below the operation lever 30. By this operation, the detection lever of the cold / hot changeover switch 22 rotates around the pin 33 by the restoring force of the spring 32, the cold / hot changeover switch 22 is inverted and differentially turned on, and the heater 10 is energized to start heating.

At this time, the air passage is the same as the air passage described in the conventional example.

Next, when the operation lever is pulled toward you, the shutter 29 is moved forward and abuts on the stop portion 27c of the frame 27. The third ventilation port 16c provided on the shutter 29 coincides with the second ventilation port 16b on the front side of the frame 27, and the first ventilation port 16a is opened behind the shutter 29. Further, the second shutter 20 attached to the shutter 29 comes into contact with the back surface of the box body 11 and the fourth ventilation port 16d is closed. On the other hand, the operating lever 30
The movement of the lower part also moves the lower convex part to operate the detection lever 31 of the cold temperature changeover switch 22 and stop energizing the heater 10. At this time, the air passages in the first and second storage chambers 3 and 4 are the same as the air passages described in the conventional example.

As described above, according to the present embodiment, the frame 27 formed under the heat insulation partition wall, the shutter 29, the operation lever 30, and the base 28 having the cold / hot changeover switch 22 mounted on the same side are respectively installed as the heat insulation partition wall. Since it is mounted so as to be built into the product, the foremost U-shaped portion 30b of the operation lever can be positioned above the product guide chute 36, so that the operator can operate by inserting his / her hand from the bottom of the product guide chute 36 as in the conventional case. The difficulty of operating the lever is eliminated, and at the same time, the gap between the lower part of the product guide chute 36 and the main body 1 is not necessary, and the mischief from the product outlet 37 can be prevented. The foremost U-shaped portion of the operation lever is slightly closer to the product guide chute 36 than the base 28.
Although it is exposed inside, this does not damage the contents because the upper portion of the base 28 has a dogleg shape.

Further, according to the present embodiment, since the cold / hot changeover switch 22 has a structure for detecting the movement of the operation lever 30, it is not necessary to separately operate the operation lever and the cold / hot changeover switch as in the conventional case, and the cooling due to the erroneous operation thereof is performed. ， The heating failure can be eliminated.

Effects of the Invention As described above, according to the present invention, the shutter, the operation lever,
The operating lever can be placed on the upper part of the product guide chute by incorporating the cold / hot switch in the heat insulation partition wall, so the operating lever can be operated easily and accurately, and the operating condition can be confirmed. The stop position of the operation lever makes it possible to easily determine whether the operation is the cooling operation or the heating operation. Further, by arranging the operation lever at the upper part, the lower part of the product guide chute can be closed, and it is possible to prevent tampering from the product outlet to the storage chamber.

Furthermore, since the operation of the operating lever is detected and the cold / hot changeover switch is switched at the same time, the defective cooling and heating caused by the one-sided operation that occurs during another operation is eliminated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a lower portion of a storage compartment of a vending machine according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a lower portion of a heat insulating partition wall of FIG. 1, and FIG. 4 is a sectional view of the lower part of the heat insulating partition wall, FIG. 4 is a front view of the body of a conventional vending machine, FIG. 5 is a sectional view of the first storage chamber in FIG. 4, and FIG. 6 is FIG. FIG. 7 is a sectional view of the second storage chamber, FIG. 7 is an exploded perspective view of the lower portion of the storage chamber of FIG. 4, and FIG. 8 is an electric circuit diagram of FIG. 1 ... Main body, 3 ... First storage room, 4 ... Second storage room, 2
2 ... Cooling temperature switch, 26 ... Adiabatic partition wall, 27 ...
... frame, 28 ... base, 29 ... shutter, 3
0 …… Operation lever, 31 …… Detection lever.

Claims (1)

[Claims] 1. A heating device having two ventilation openings provided in the front and rear direction in the lower part of the lower part, a heat insulation partition wall provided with a shutter for simultaneously opening and closing the ventilation openings, and a heater partitioned by the heat insulation partition wall. Installed in the first storage chamber, a second storage chamber containing a cooler, a recess for storing the shutter and a guide rail portion for guiding the shutter, and two ventilation openings before and after being simultaneously opened or closed by the shutter. And a frame having a stop portion for stopping the shutter at the open position and the closed position, an operation lever fixed to the front end of the shutter for performing a forward and backward movement operation of the shutter, and sensing the operation of the operation lever. Then, the switch for turning ON / OFF the heating device by the heater, the operation lever, the shutter, and the switch are arranged on the same side and assembled. A base having a bent portion in section, with the base and the frame, the operating lever, the shutter,
A cooling and heating switching device for a vending machine, characterized in that a changeover switch is built in the heat insulation partition wall, and the operation lever is arranged above the product guide chute.