JP5509865B2 - vending machine - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a vending machine that sells products such as cans, bottles, and plastic bottles, and more particularly to a fixed support structure for a tray in a cabinet that is laid on the bottom of a cabinet of a main body cabinet that has a heat insulating structure and mounts a cooling unit. .

As is well known, the above-mentioned vending machines have a product rack (for example, a serpentine-type product rack) in a cabinet of a main body cabinet that becomes a heat-insulating housing, and a cooling unit (a unit that combines an evaporator fan with an evaporator of a refrigerator). ), And the products stored in the product rack are kept cold and sold. There are also products that sell products as hot or cold products by combining a heater with the cooling unit.
Here, the main body cabinet is a panel-shaped insulation made of foamed urethane resin on the inner wall surface (ceiling surface, left and right side surfaces, back surface, and bottom surface) of the outer box (steel plate) that has a substantially rectangular parallelepiped shape. It is laid and configured. In addition, the cooling unit is mounted on a tray made of sheet metal and installed at the bottom of the warehouse, and this tray is laid on the heat insulating material laid on the bottom of the warehouse, In the structure, the internal tray is fixed to a predetermined laying position by screwing it to the bottom wall of the steel plate (see, for example, Patent Document 1).
Further, in the vending machine, the refrigerant pipe connecting the condensing unit of the refrigerator installed in the machine room defined at the bottom (outside of the cabinet) of the main body cabinet and the cooling unit, and the electrical equipment in the machine room The wiring harness connecting between the box and the electrical components inside the cabinet (cooling unit blower fan, product rack bend mechanism, etc.) is pulled into the cabinet, and the above-mentioned tray in the cabinet, heat insulation A groove is cut out on the front edge side of the material and the bottom wall, and piping and wiring are made through a refrigerant pipe and a wire harness in which a cushion material is wound around the groove (for example, see Patent Document 2).

JP 2007-148704 A (FIGS. 9 and 10) Japanese Patent No. 3932870

By the way, in the above-mentioned conventional tray mounting structure (Patent Document 1), since the tray made of sheet metal is screwed to the bottom wall made of steel plate at a plurality of locations, A heat transfer path between the metals via the fastening screw is formed between them. Therefore, the cold insulation heat in the cabinet cooled by the cooling unit or the thermal insulation heat in the cabinet heated by the heater is transferred from the tray to the bottom wall via a fastening screw (a metal having high heat conductivity), and from this bottom wall. Escape outside the warehouse. As a result, despite the presence of heat insulating material between the tray in the cabinet and the bottom wall, the heat insulation function is not fully exhibited and heat loss increases, reducing the cold and heat insulation performance in the cabinet. As a result, the power consumption of the vending machine increases.
In addition, in the conventional piping and wiring structure (Patent Document 2), a concave groove is formed in the front edge of the tray, the heat insulating material, and the bottom wall as a passage for drawing the refrigerant piping and wire harness into the chamber, and the refrigerant piping and wire A harness is wound around the harness together with the cushion material, and sealed to prevent the cool air and warm air from leaking out of the cabinet.
However, the concave grooves formed in the interior tray, the heat insulating material, and the bottom wall are notched to form uneven steps between the overlapping portions of each member due to variations in groove processing and assembly. Seal may be incomplete.

  This invention has been made in view of the above points, and as a means for fixing the tray in the cabinet laid on the bottom wall in the cabinet of the main body cabinet via a heat insulating material, piping to be drawn into the cabinet as described above, Automatic sales with improved assembly structure so that the internal tray can be fixed to the bottom wall in an adiabatic manner by using the internal tray, heat insulating material, and a recessed groove formed in the front edge of the bottom wall as the wiring path The purpose is to provide a machine.

In order to achieve the above object, according to the present invention, the internal cooling unit is placed on a tray made of sheet metal laid on the bottom wall of the main body cabinet having a heat insulating structure via a heat insulating material. And the tray, the heat insulating material, the recessed groove formed in the front edge of the bottom wall, the piping for drawing the recessed groove into the chamber, and the wiring passage, the cooling unit, and the electrical components inside the warehouse, In the vending machine with the refrigerator condensing unit deployed in the machine room of the main unit cabinet, the refrigerant piping connecting between the electrical box, the wiring piping through the wire harness, and wiring
A fixing member made of a mold resin is provided to be fitted in the concave groove so as to lock and fix the internal tray to the internal bottom wall of the main body cabinet . As a specific aspect, the fixing member is a barrel having a U-shaped cross section. It has a semi-cylindrical shape with a flange on the top edge and an engagement protrusion on the lower peripheral surface. The fixing member is inserted into the concave groove, and the flange is pressed against the upper surface of the tray in the cabinet. Then, the engaging projection is engaged with the peripheral edge of the groove on the bottom wall to fix the tray in the warehouse at a predetermined laying position .

According to the said structure, without using the fastening screw used as the heat-transfer path between metals, the tray in a warehouse inserts the fixing member made from the mold resin with low heat conductivity in the said ditch | groove, The collar part, By simply engaging the internal tray and the bottom wall so as to be sandwiched from above and below via the engaging protrusions, the internal tray can be adiabatically fixed to the internal bottom wall of the main body cabinet. .
In addition, since the flange protruding from the upper peripheral edge of the barrel part is in close contact with and overlaps the plate surface of the internal tray, there is no possibility that a gap will be formed between them, and the inner circumferential surface of the barrel part is uneven. Since it has a flat surface with no steps, the refrigerant piping that passes through the body, the cushion material wrapped around the wire harness and the inner surface of the body are prevented from creating a gap, It is possible to secure a high sealing performance against leakage of warm air. As a result, compared with the above-described conventional tray support structure in the cabinet and the pull-in structure for piping and wiring in the cabinet, the coolness and heat insulation in the cabinet are improved, and the energy saving of the vending machine can be achieved.

It is the attachment structure figure of the tray in the warehouse by the example of this invention, (a) is the perspective appearance figure which looked at the bottom part circumference in the warehouse from the front, (b) is the outline perspective view of the fixed member in (a). is there. It is arrow XX sectional drawing of FIG.

Embodiments of the present invention will be described below based on the illustrated embodiments.
1 (a), (b) and FIG. 2, reference numeral 1 denotes a steel plate inner bottom wall provided in an outer box of the main body cabinet, 2 denotes a panel-like heat insulating material made of foamed urethane resin, etc. An in-store tray made of sheet metal laid on the bottom wall 1 with the heat insulating material 2 interposed therebetween, 4 is a fixing member according to the present invention for locking and fixing the in-store tray 3 to the bottom wall 1, and 5 is in the interior of the main cabinet. A partition wall that stands up and partitions the product room. A cooling unit (not shown) is mounted on the rear side of the internal tray 3, and defrost water generated in the cooling unit is discharged outside the storage. A drain port (not shown) opens in the tray plate surface. The bottom wall 1 is formed by bending the front wall standing upward along its front edge.
Also, 6 is a refrigerant pipe arranged between the condenser unit of the refrigerator and the evaporator of the cooling unit, which is arranged in the machine room defined at the bottom (outside of the cabinet) of the main body cabinet, and 7 is an electrical box inside the machine room. And a wiring harness inside the cabinet (a fan built in the cooling unit, a wire harness connecting the bend mech of the product rack housed in the cabinet, in order to draw this refrigerant pipe 6, wire harness 7 into the cabinet In addition, a concave groove opened forward is formed in the front end edge of the bottom wall 1, the heat insulating material 2, and the internal tray 3 in the same manner as in the prior art (see Patent Document 2). The fixed member 4 thus fitted is inserted as described later, the internal tray 3 is locked to the bottom wall 1, and the internal tray 3 is fixedly supported at a predetermined laying position.

Here, the fixing member 4 is a molded product of a mold resin. As shown in FIG. 1 (b), the body portion 4a having a U-shaped cross section is used as a base, and a thin collar portion projecting outward is formed at the upper end periphery. 4b, and a wedge-shaped engagement protrusion 4c is formed on the lower peripheral surface in two left and right positions. In addition, the external shape of the trunk | drum 4a respond | corresponds to the shape of the said ditch | groove, and the space | interval dimension between the collar part 4b and the engagement protrusion 4c respond | corresponds to the lamination | stacking thickness of the bottom wall 1, the heat insulating material 2, and the tray 3 in a warehouse. doing.
And in order to fix the tray 3 placed on the bottom wall 1 of the cabinet via the heat insulating material 2 in the assembly process of the main body cabinet at a predetermined laying position, the fixing member 4 is fixed to the upper surface of the tray 3 of the cabinet. It pushes and inserts into the above-mentioned concave groove from the side. By this pushing, the body portion 4a of the fixing member 4 enters the groove while its left and right side walls are bent and deformed inward, and when the engaging protrusion 4c passes through the recessed groove, the body portion 4a is restored and the engaging protrusion 4c is bottomed. Locked to the periphery of the groove in the wall 1. In this fixed state, the flange 4a of the fixing member 4 overlaps and comes into close contact with the upper surface of the internal tray 3, so that the gap between the concave groove of the internal tray 3 and the outer peripheral surface of the trunk portion of the fixing member 4 is sealed. The
In addition, in the assembly process in which the cooling unit is assembled in the cabinet following the laying and fixing of the tray 3 in the cabinet, the cushion material 8 is wrapped around the refrigerant pipe 6 and the wire harness 7 as shown in FIG. The pipe and the wiring are pulled into the inside of the cabinet by fitting into the body portion 4a of the fixing member 6 from above. In this case, the inner peripheral surface of the body portion 4a has a uniform flat surface without uneven steps, so that no gap is formed between the cushion member 8 and high sealing performance is ensured. In addition, after this piping and wiring, a gasket is attached to the front edge of the cabinet inside including the bottom wall 1 and the front end face of the partition wall 6 so as to hermetically seal between the heat insulating door attached to the front of the main body cabinet. Like to do.

  According to the assembly structure described above, the fastening means (metal) is not used as a fixing means of the internal tray 3, and the bottom wall 1, the heat insulating material 2, and the internal tray 3 are penetrated as a passage for piping and wiring. The internal tray 3 can be adiabatically fixed to the bottom wall 1 through the fixing member 4 made of a mold resin having a low thermal conductivity. This ensures high cold and heat insulation in the cabinet.

1: In-compartment bottom wall 2; Insulation material 3: In-compartment tray 4: Fixing member 4a: Body part 4b: Gutter part 4c: Engagement protrusion 6: Refrigerant piping 7: Wire harness

Claims (1)

The cooling unit is placed on a sheet metal tray placed on the bottom wall in the cabinet of the main body cabinet, which has a heat insulation structure, with a heat insulating material, and in front of the tray, the heat insulating material, and the bottom wall. As a piping and wiring passage for drawing a recessed groove formed in a notch at the edge, the cooling unit is provided in the recessed groove, and a refrigerator condensing unit disposed in the machine room of the internal components and the main body cabinet. In refrigerant pipes that connect with the electrical box, wiring pipes routed through wire harnesses, and wired vending machines,
A fixing member made of a mold resin is provided that is fitted in the concave groove to lock and fix the tray in the cabinet bottom wall of the main body cabinet ,
The fixing member has a semi-cylindrical shape in which a body portion having a U-shaped cross section is formed with a flange on the periphery of the upper end of the base, and an engagement protrusion is formed on a lower peripheral surface. Is pressed against the upper surface of the internal tray, and the engaging projection is engaged with the peripheral edge of the concave groove of the bottom wall to fix the internal tray .

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