JP2000105862A - Heat insulating structure of automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating structure for an automatic vending machine, which can improve the heat insulation between an external and an internal box and does not increase the thickness of a heat insulating wall itself unnecessarily. SOLUTION: A 1st heat-insulating member 5 which engages a reinforcing member 4 on the side of the external box 1 is interposed between the external box 1 and internal box 2 and the 1st coupling member 5 and the internal box 2 are connected by a 2nd coupling member 6 having a gasket 8 in one body, so no screw need not be used to fix the external box 1 and internal box 2 and conventional heat conduction through screws is not caused. In this case, the 2nd coupling member 6 having the gasket 8 is built in after the internal box 2 is inserted into the external box 1, so the interval of the front end of the external box 1 and the internal box 2 along the width is made large enough only to allow the front end side of the internal box 2 to pass.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating wall structure of a vending machine which sells goods such as cans or bottled beverages by cooling or heating.

[0002]

2. Description of the Related Art Conventionally, as a heat insulating wall structure of this kind of vending machine, an outer box 10 and an inner box 11 formed along the back and both sides of the vending machine main body as shown in FIG. The outer box 10 and the inner box 1 are opposed to each other at an interval in the thickness direction.
1 is known in which a heat insulating material 12 is interposed. In this heat insulating wall structure, as shown in FIG. 5, the front end of the inner box 11 is positioned behind the front end of the outer box 10, and the reinforcing member 13 extending from the outer box 10 and the front end of the inner box 11 are connected to each other. Insulating connecting member 14 made of synthetic resin or the like between
And the reinforcing member 13 on the outer box 10 side is fastened with the screw 15. Further, a packing 17 for keeping airtightness with the inner door 16 is integrally provided on the front side of the connecting member 14.

[0003]

In the heat insulating wall structure,
The heat conduction between the outer case 10 and the inner case 11 is interposed between the outer case 10 and the inner case 11 to prevent direct heat conduction between the outer case 10 and the inner case 11. Since it is fixed to the outer box 10 side, the heat conduction through the screw 15 impairs the heat insulation between the outer box 10 and the inner box 11, and especially when the inside is cooled, the surface of the outer box 10 There was a problem that dew condensation easily occurred. Further, since the connecting member 14 has the packing 17 on the front side and is formed so that the rear side is in contact with the outer box 10, the connecting member 14 is inserted before the inner box 11 is inserted into the outer box 10. It must be assembled on the 11 side. For this reason, the width A of the width direction between the front end of the outer box 10 and the inner box 11 is made wider than at least the width of the connecting member 14 so that the connecting member 14 does not contact the front end of the outer box 10 when the inner box 11 is assembled. You need to do that. Therefore, there has been a problem that the thickness B of the heat insulating wall itself becomes unnecessarily large and the width of the vending machine main body increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to improve the heat insulation between the outer box and the inner box, and to increase the thickness of the heat insulating wall itself. It is an object of the present invention to provide a heat insulating wall structure for a vending machine which does not increase the above.

[0005]

In order to achieve the above object, according to the present invention, an outer box and an inner box formed along the back surface and both side surfaces of a vending machine body are arranged in the thickness direction. In addition to the outer box and the inner box, a heat insulating material is interposed between the outer box and the inner box, and the front end side of the inner box is positioned behind the front end of the outer box and fixed to the outer box side. In a heat insulating wall structure of a vending machine in which an airtight member extending vertically is attached to a front end of a box, the box is interposed between a front end side of the inner box and an outer box side, and is fitted to a predetermined portion of the outer box side. A first connecting member having thermal insulation, and a second connecting member integrally including the airtight member and fitted to a predetermined portion of the first connecting member and the inner box. Thereby, the heat-insulating first connecting member fitted on the outer box side is interposed between the outer box and the inner box, and the first connecting member and the inner box are the second connecting member having an airtight member. Therefore, there is no need to use screws to fix the outer case to the inner case. In this case, after the inner box is inserted into the outer box, the second connecting member having the airtight member is assembled, so that the widthwise interval between the front end of the outer box and the inner box is set so that the front end side of the inner box is It is possible to make the dimensions as small as possible.

According to a second aspect of the present invention, in the heat insulating wall structure of the vending machine according to the first aspect, the first connecting member and the second connecting member have a fitting structure for press-fitting one into the other. I have. Thereby, in addition to the effect of the first aspect, since the first connecting member and the second connecting member are fitted to each other by press-fitting, the fitted state is reliably maintained.

According to a third aspect of the present invention, in the heat insulating wall structure of a vending machine according to the first or second aspect, the second connecting member guides a fitting portion of the inner box toward the first connecting member. It has a fitting structure for fitting while fitting. Accordingly, in addition to the function of the first or second aspect, since the fitting portion of the inner box is fitted to the second connecting member while being guided to the first connecting member side, the inner box is connected to the first connecting member. Crimp securely.

[0008]

1 to 3 show an embodiment of the present invention. FIG. 1 is a plan sectional view of a main part of a heat insulating wall, and FIG.
3 is a plan sectional view of a main part showing the assembling process.

In the heat insulating wall structure of the vending machine according to the present embodiment, as described in the description of the prior art, the outer box 1 and the inner box 2 formed along the back surface and both side surfaces of the vending machine main body. A heat insulating material 3 is interposed between the outer box 1 and the inner box 2 so as to face each other with an interval in the thickness direction. Further, the outer box 1 and the inner box 2 include a heat-insulating first connecting member 5 fitted to the reinforcing plate 4 on the outer box 1 side, and an inner box 2 and the first connecting member 5.
Are fixed to each other by a second connecting member 6 fitted to the first connecting member.

The outer box 1 has a front end side bent in a U-shape toward the inside of the heat insulating wall, and a reinforcing member 4 is fixed to the inside thereof. The rear end of the reinforcing member 4 is bent in the thickness direction of the heat insulating wall, and the front end 4a is bent rearward.

The inner box 2 has a front end located behind the front end of the outer box 1. The front end of the inner box 2 is bent along the reinforcing member 4 in the thickness direction of the heat insulating wall. It is bent forward.

The first connecting member 5 is made of a heat-insulating material such as a synthetic resin, and extends substantially along the rear end of the reinforcing member 4.
It is formed in a character shape. On one end side of the first connecting member 5, a groove 5a to be fitted with the distal end portion 4a of the reinforcing member 4 is provided,
Projection 5 protruding forward on the other end side (the surface facing forward)
b is provided. In this case, the tip 5c of the projection 5b
Are formed so as to slightly swell in the width direction.

The second connecting member 6 is formed of a synthetic resin, and a packing 8 for maintaining airtightness with the inner door 7 is integrally provided on the front side thereof. On the back side of the second connecting member 6, the first fitting member 5b fitted with the projection 5b of the first connecting member 5 is provided.
The first groove 6a is provided with a slightly protruding protrusion 6b on the widthwise facing surface in the first groove 6a. A second groove 6c is provided on the back side of the second connecting member 6 so as to fit with the tip 2a of the inner box 2.
A projection 6e having an inclined surface 6d facing the other end is provided at one end in the width direction in c.

In the process of assembling the heat insulating wall configured as described above, as shown in FIG.
a is fitted to the tip 4 a of the reinforcing member 4, and the first connecting member 5 is fixed to the reinforcing member 4. Next, the inner box 2 is inserted into the outer box 1 and the front end side of the inner box 2 is locked to the first connecting member 5 as shown in FIG. At this time, the width A between the front end of the outer box 1 and the inner box 2 in the width direction is set to a size that allows the front end side of the inner box 2 to pass through. Next, the first connection member 6
And the second groove 6c of the second connecting member 6 is fitted to the tip 2a of the inner box 2, and the second connecting member 6 is fitted to the protrusion 5b of the first connecting member 5. The first connecting member 5 and the inner box 2 are connected to each other. At this time, the projection 5b of the first connecting member 5 is inserted into the first groove 6a of the second connecting member 6.
Is inserted into the first groove 6a.
Is pushed into the inside of the first groove 6a over each projection 6b, so that the projection 5b is securely held in the first groove 6a. When the tip 2a of the inner box 2 is inserted into the second groove 6c of the second connecting member 6, the tip 2a of the inner box 2
The inner box 2 is securely pressed against the first connecting member 5 because the inner box 2 is fitted into the second groove 6c while being guided by the inclined surface 6d of the groove 6c toward the first connecting member 5 side.

As described above, according to the heat insulating wall structure of the present embodiment, the heat insulating first connecting member 5 fitted between the outer box 1 and the inner box 2 to the reinforcing member 4 on the outer box 1 side. And the second connecting member 5 and the inner box 2 having the packing 8 integrally therewith.
Of the outer box 1
It is not necessary to use a screw for fixing the inner case 2 and the inner box 2, and there is no heat conduction via the screw unlike the conventional case. Furthermore,
Since the screwing is not required, the number of parts and the number of assembly steps can be reduced. In addition, an unfixed portion is generated between the screws by screwing, but in this embodiment, the outer case 1 and the inner case 2 are not fixed.
Can be uniformly fixed in the length direction of each of the connecting members 5 and 6, and the fixing strength of the outer box 1 and the inner box 2 can be improved. Furthermore, in the present embodiment, the inner box 2 is inserted into the outer box 1 and then the second connecting member 6 having the packing 8 is assembled, so that the width direction between the front end of the outer box 1 and the inner box 2 Can be set to a size that allows the front end side of the inner box 2 to pass through. Therefore, the thickness B of the heat insulating wall itself
Can be reduced more than necessary, and the width of the vending machine body can be reduced.

[0016]

As described above, according to the heat insulating wall structure of the first aspect, it is not necessary to use screws to fix the outer case to the inner case. And the heat insulation between the outer box and the inner box can be improved. Furthermore, the number of parts and the number of assembling steps can be reduced because screwing is not required. In addition, since the width of the front end of the outer box and the width of the inner box in the width direction can be set to a size that allows the front end of the inner box to pass through, the thickness of the heat insulating wall itself is not increased more than necessary, and the vending machine is automatically sold. The width of the machine body can be reduced.

According to the heat insulating wall structure of the second aspect, in addition to the effect of the first aspect, the fitting state of the first connecting member and the second connecting member can be reliably maintained, so The reliability of the box and the inner box fixing structure can be improved.

According to the third aspect, in addition to the effects of the first or second aspect, since the inner box can be securely pressed against the first connecting member, the reliability of the fixing structure of the outer box and the inner box can be improved. It can be further improved.

[Brief description of the drawings]

FIG. 1 is a plan cross-sectional view of a main part of a heat insulating wall showing one embodiment of the present invention.

FIG. 2 is a plan cross-sectional view of a main part showing an assembly process of the heat insulating wall.

FIG. 3 is a plan cross-sectional view of a main part showing a process of assembling the heat insulating wall.

FIG. 4 is a cross-sectional plan view of the entire heat insulating wall.

FIG. 5 is a plan sectional view of a main part showing a conventional heat insulating wall structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer box, 2 ... Inner box, 3 ... Heat insulation material, 5 ... 1st connection member, 6 ... 2nd connection member, 8 ... Packing.

Claims (3)

[Claims] 1. An outer box and an inner box formed along a back surface and both side surfaces of a vending machine main body are opposed to each other at an interval in a thickness direction, and a heat insulating material is provided between the outer box and the inner box. Insulation of vending machines in which the front end side of the inner box is positioned behind the front end of the outer box and fixed to the outer box side, and an airtight member extending vertically is attached to the front end of the inner box. In the wall structure, a heat insulating first connecting member interposed between a front end side of the inner box and the outer box side and fitted to a predetermined portion on the outer box side, and the airtight member are integrally formed. , A first connecting member and a second connecting member fitted to a predetermined portion of the inner box. 2. A heat insulating wall structure for a vending machine according to claim 1, wherein said first connecting member and said second connecting member have a fitting structure for press-fitting one of them into the other. 3. The fitting structure according to claim 1, wherein the second connecting member has a fitting structure for fitting while guiding the fitting portion of the inner box toward the first connecting member. Insulated wall structure of vending machine.