JPS5868190A - Vending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The vending machine of the present invention houses electrical equipment that generates an electric arc, such as a motor and a switch, in a sealed case.The inside of the case is kept under positive pressure, and the vending machine has an internal pressure explosion-proof structure. It can be installed even in places where there is a risk of flammable gas or vapor existing on the ground, that is, it has an internal pressure explosion-proof structure.

Vending machines such as beverage cans have electrical equipment that generates electric arcs, such as motors and switches, so if they are installed in places where there is a risk of flammable gas or vapor, such as a gas station, the electric arcs can ignite the gas. There is a risk of fire or explosion.

The vending machine of this invention prevents the above-mentioned danger.
To explain the embodiment with reference to FIGS. 1 to 3, a case I of a juice can vending machine is housed in a sealed case 2 with a gap A, and a coin insertion hole 3 and a coin validator 4 in the case 1 are connected to each other. are connected by a sealed passage 5, and lids 6 and 7 are provided at both ends to prevent air leakage.

The can delivery hole 8 of the case 1 and the outlet 9 of the sealed case 2 are connected by a sealed passage 10, and lids I+ and +2 for preventing air leakage are provided at both ends.

The air intake hole 13 is opened at the top of the case 2 at a position 60 crn or more from the bottom surface of the sealed case 2, and a +4 for air intake is provided.

To purchase a juice can, remove the lid 6 from the coin insertion hole 3 and insert the coins.The coins will fall down the sealed passage 5, remove the lid 7, reach the discrimination machine 4, and the discrimination machine 4 will If it is determined that the currency is genuine, the can delivery device operates and the juice can 15 is delivered from the delivery hole 8, removes the lid 11, and stops in the sealed passage 10. Drain and take out can I5.

Air is sucked in through the intake hole 13 by the intake I4, and a portion of the air is drawn into the lid 6. 7. Although the positive pressure escapes from the gap between the contact surfaces of I+ and 12, positive pressure is maintained within the sealed gap A.

The hazardous area where gasoline vapor exists within the premises of a gas station is said to be 60 tM or less from the ground surface, so it is 5 (] from the bottom).
There is no risk of gasoline vapor being sucked in from the intake hole 13, which opens at a position above Cm, and positive pressure is maintained in the gap A, so gasoline vapor exists near the ground surface I.
7, they cannot enter the gap A, so there is no possibility of ignition due to the electric arc generated in the electric equipment of the vending machine.

FIG. 4 shows the second embodiment, in which the product storage case 16
is placed in the sealed case 17 with a gap B, a coin input slot/discriminator 18 is provided in the sealed case 17, and the case +6. +
7 are connected by a can delivery device 19, and a cooler 20 is provided in the gap B.

An intake hole 21 is opened at the top of the sealed case 17 at a position 6Q1 or more from the bottom surface, an intake hole 23 is provided, and an exhaust hole 22 is provided at the opposite position.

To purchase a juice can, insert the coin from the input slot into the validating machine 1.
8, if the validating machine 18 determines that the currency is genuine, the can dispensing device 19 will operate and the juice can 24 will be discharged.
3) It passes through the gap and is exhausted from the exhaust hole 22 in the opposite position,
Maintain positive pressure in gap B.

Intake hole 2 that opens at a position of 60c1n or more from the bottom surface
1, there is no risk of gasoline vapor being sucked in and the gap B is maintained at a positive pressure, so even if gasoline vapor exists near the ground surface, it will not enter the gap B.

Unfortunately, since the cooler 20 is installed in the gap B, the gap B
The heat dissipation effect is performed well by the air flowing inside.

In the vending machine of this invention, electrical equipment that generates an electric arc, such as the motor and switch of the cooler and product delivery device, is housed in a sealed case, and the internal pressure is slightly higher than the outside, so that flammable gas and Even if vapor exists, it will not enter the case, preventing the risk of ignition or explosion.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a first embodiment of a vending machine of the present invention, FIG. 2 is a longitudinal sectional side view of a coin insertion hole,
FIG. 3 is a longitudinal sectional side view of the outlet portion, and (4) FIG. 4 is a longitudinal sectional side view of the second embodiment. 1, +6: Case 2.17: Sealed case 13, 2
1: Intake hole 14.23: Intake layer A, B: Sealing gap Inventor Hiyoshi Tatsuno Applicant Tokyo Tatsuno Co., Ltd. (5) )) 1 Figure 1

Claims (1)

[Claims] A vending machine with an internal pressure explosion-proof structure.