JP3180887B2 - vending machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation structure of a thermostat and a thermal fuse for preventing overheating in a refrigerator in a vending machine for heating and selling goods.

[0002]

2. Description of the Related Art As shown in FIGS. 3 and 4, a vending machine for heating and selling a product such as a canned beverage is provided with a main body case 1 as shown in FIGS.
In addition, an outer door 2 is provided on the front surface thereof, and a cabinet 3 is formed in the main body case 1 by a heat insulating wall. In this case, a serpentine type product rack 4 is often installed to store the products.
A chute 5 is provided below the merchandise rack 4 for receiving the merchandise carried out of the merchandise rack 4 and sending the merchandise to a merchandise outlet 2a provided on the outer door 2. Under the chute 5, a cold beverage is sold. A cooler 6 for cooling the commodities in the case where the hot beverage is sold and a meandering heater 7 for heating the commodities in the case where the hot beverage is sold are arranged together with the blower fan 8.

FIG. 4 shows that the air blown by the blower fan 8 is sent to the inside 3 of the refrigerator 3 as an effective warm air or a cool air.
As shown in the figure, a duct 9 whose front end overlaps the upper surface of the cooler 6 is provided on the discharge side of the blower fan 8, and a room-conditioning unit 20 in which the heater 7 is installed in the duct 9 so as to face the fan 8 is provided. ing. Further, a ventilation path is formed such that the hot or cold air passes through the back of the main body case 1 into the storage, and most of the air blows away and circulates the products under the product rack 4. In addition, a heat insulating inner door 3 a is provided on the front surface of the refrigerator 3, and a condensing unit 30 of a refrigerator is installed in the machine room 11 below the refrigerator of the main body case 1.

[0004] Reference numeral 10 denotes an overheat prevention device which is installed on the upper surface of the duct 9 substantially above the cooler in order to prevent abnormal heating of the inside of the refrigerator when the product is warmed by hot air. The fuse 12 is integrally formed. Thus, the overheating prevention device 10 senses the temperature in the refrigerator through the vent hole opened in the chute 5 and, when the refrigerator 3 is abnormally heated, firstly the overheat prevention thermostat 11.
When the thermostat 11 is malfunctioning, the thermal fuse 12 is blown to cut off the power supply to the heater 7, thereby preventing damage to the product and damage to the vending machine due to overheating.

[0005] When the interior 3 is dedicated to storage,
Naturally, the cooler 6 is not provided, and the air conditioner unit 20 is constituted by the heater 7, the blower fan 8, and the duct 9.

[0006]

By the way, overheating in the refrigerator occurs when the blower fan 8 stops unexpectedly, and first, the temperature inside the duct 9 of the air conditioning unit abnormally rises. Therefore,
An overheat prevention device 10 is provided so that this abnormality can be detected promptly.
It is desired that the overheating prevention device 10 is mounted on the upper surface of the duct as described above. In general, a product take-out chute 5 is mounted above the duct 9 in an inclined posture, so that a space created between the chute 5 and the duct 9 in the past is used to save useless installation space. The overheat prevention device 10 is installed without taking it.

However, it has been increasingly required that the length of the merchandise rack 4 be increased without changing the size of the vending machine to accommodate as many commodities as possible. There is a demand for a configuration in which the overheat protection device 10 is simply installed using the space generated from the arrangement, and an arrangement configuration in which the product rack can be prolonged positively.

Accordingly, an object of the present invention is to provide a vending machine which can increase the number of accommodated goods in response to the above demand.

[0009]

According to the present invention, in order to attain the above object, according to the present invention, a product is heated and stored in a product storage shelf installed in a refrigerator, and a product dropped and carried out of the product storage shelf is taken by a shooter. A vending machine that receives air from the vending machine and sends it out to the product outlet outside the refrigerator. It has an air conditioning unit that connects a blower fan and a heater via a duct, and an overheat prevention thermostat and a thermal fuse that prevent overheating in the refrigerator. An overheating prevention device, wherein the air conditioning unit is installed in the interior space below the shooter, and wherein the overheating prevention device is installed on the upper surface of the duct of the air conditioning unit, the upper surface of the duct is depressed. To form a recess, and the overheat prevention thermostat is disposed in the recess.

[0010]

[Function] Separating the overheat prevention thermostat from the thermal fuse and embedding it in the recess formed on the upper surface of the duct lowers the installation height of the overheat prevention device. Can be longer.

[0011]

FIG. 1 and FIG. 2 show an embodiment of the present invention, in which parts common or identical to those in FIG. 3 and FIG. 1 and 2, the overheat prevention device 10 is configured such that the overheat prevention thermostat 11 and the thermal fuse 12 are separated and attached separately, and the thermal fuse 12 is installed on the upper surface of the rear end of the duct 9, The thermostat 11 is provided with a recess 9a on the upper surface of the duct 9, and is embedded and installed in the recess. In addition, a heat insulating spacer 13 is provided on the upper surface of the bottom wall of the recess 9a serving as a mounting surface of the thermostat 11.
Is installed to prevent the thermostat 11 from malfunctioning due to heat conduction from the duct 9 heated by the heater 7 below.

In the above-described configuration, the overheat prevention thermostat 11 and the temperature fuse 12 sense the temperature inside the refrigerator and prevent the temperature inside the refrigerator 3 from becoming abnormally high. On the other hand, the temperature fuse 1
Since only 2 is protruded and installed, its installation height is reduced. In addition, since the overheat prevention thermostat 11 is embedded and installed in the recess, the chute 5 which is installed obliquely forward and backward is set down to a position almost in contact with the duct 9 as shown in FIG. In FIG. 3), the vertical length is made large so that the number of stored products can be increased.

[0013]

According to the present invention, the mounting position of the chute, which has been slightly elevated for setting the thermostat and the thermal fuse in the past, can be lowered, and the product rack is enlarged in the vertical direction by that much to increase the number of products to be stored. Can be increased.

[Brief description of the drawings]

FIG. 1 is a side view of an essential part of a vending machine showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a thermostat installation portion of the main part of the invention shown in FIG.

FIG. 3 is a sectional view of a vending machine to which the present invention is applied.

FIG. 4 is a side view of a portion related to the invention of the conventional vending machine.

[Explanation of symbols]

 3 Interior 4 Commodity rack 7 Heater 9 Duct 9a Recess 10 Overheat prevention device 11 Overheat prevention thermostat 12 Thermal fuse 13 Spacer 20 Air conditioning unit

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07F 9/00-9/10

Claims (2)

(57) [Claims] 1. A vending machine which heats and stores products in a product storage shelf installed in the warehouse, receives the product dropped out of the product storage shelf with a shooter, and sends out the product to a product outlet outside the warehouse. An air conditioning unit in which a blower fan and a heater are connected via a duct; and an overheating prevention device including an overheating prevention thermostat and a temperature fuse for preventing overheating of the inside of the compartment, wherein the air conditioning unit is provided inside the compartment below the chute. Along with being installed in a space, the overheating prevention device is installed on the upper surface of the duct of the air conditioning unit,
A concave is formed by depressing the upper surface of the duct,
A vending machine wherein the overheat prevention thermostat is provided in the recess. 2. The vending machine according to claim 1, wherein a heat insulating spacer is laid on a surface of the recess where the overheat prevention thermostat is installed.