JP3758436B2 - Vending machine door device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door device of a vending machine equipped with a serpentine type product storage rack that cools or heats cans, bottles, and bottled beverage products in the machine.
[0002]
[Prior art]
In vending machines that sell canned beverages listed above, products stored in the product storage rack are cooled by installing a cooling / heating unit in the cabinet of the product storage rack (for example, a serpentine product storage rack). In addition to heating, the front of the cabinet as a heat-insulating housing is provided with a heat-insulating inner door inside the cabinet in addition to the outer door so as to shield the interior.
[0003]
In addition, in the vending machine, there is product replenishment to the product storage rack as daily maintenance work, and in this case, when the product replenishment work is performed with the above-mentioned heat insulation inner door fully opened and the front of the interior opened, Cooling and heating efficiency will deteriorate due to the increased amount of cold and warm air leaked from the inside of the chamber. Therefore, the heat insulation inner door is divided into two parts: an upper door that covers the surface area of the product replenishing port that opens to the upper front of the product storage rack (serpentine type product storage rack), and a lower door that covers the front area of the lower part of the cabinet. The upper door is attached to the back of the main door, and the outer door is opened when replenishing the product, so that only the upper door can be opened while the lower door is closed so that the product can be replenished to the product storage rack. The thing of the structure is implemented conventionally.
[0004]
FIG. 4 is a block diagram of a conventional example of a vending machine provided with such a divided inner door, wherein 1 is a front-opening cabinet as a heat-insulating housing, and 2 is a single-opening type outer door arranged on the front of the cabinet 1. 2-1 is a product outlet, 3 is a serpentine product storage rack mounted in the cabinet 1, and 4 is a product carry-out shooter. Is provided with a single-opening type insulated inner door 5. Although not shown, a cooling / heating unit is mounted on the bottom of the cabinet 1.
[0005]
Here, the outer door 2 defines a display room for displaying product samples, and is a sheet metal door having a considerable thickness equipped with coins, banknote handling devices, etc. on the back side of the door, and its suspending side is The latch 2b, which is pivotally supported by the front end of the case body 1 through the hinge pin 2a and interlocks with the door handle with the lock provided on the tip side opposite to the suspension source, is hooked on the latch of the cabinet 1 and locked in the closed position. ing.
[0006]
On the other hand, the heat insulating inner door 5 is divided into an upper door 6 that covers the front area of the product replenishing port 3a that opens to the upper front surface of the product storage rack 3, and a lower door 7 that covers the front surface of the lower part of the warehouse. Thus, the upper door 6 is attached to the display room rear door 2c of the outer door so as to open and close together with the outer door 2. In the closed position, the upper door 6 and the lower door 7 are in contact with a gasket laid along the periphery of the open end of the cabinet 1 (the open end surface of the heat insulating inner box of the cabinet) to seal the interior of the cabinet.
[0007]
[Problems to be solved by the invention]
By the way, in the configuration in which the upper door 6 of the heat insulating inner door 5 is attached to the back surface of the outer door 2 and opened and closed together with the outer door 2 as in the door device of the vending machine described above, the following is described . There is a problem. That is, as shown in FIG. 5, when the outer door 2 is opened forward with the hinge pin 2a as a fulcrum, the tip of the heat insulating upper door 6 attached to the back surface of the outer door 2 (the side opposite to the suspension source) is shown by a chain line in the figure. It moves along the arcuate trajectory T shown. In the figure, reference numeral 8 denotes a gasket laid on the open end surface of the cabinet 1. As can be seen from this figure, the movement trajectory T of the tip of the upper door 6 accompanying the opening and closing of the outer door 2 is from the closed position along the arc of curvature radius around the hinge pin 2a of the outer door 2 to the front part of the cabinet 1. Follow a path approaching the side wall 1a. In this case, the radius of curvature of the movement trajectory T increases as the thickness of the heat insulating inner door 6 increases. For this reason, if a sufficient play gap is not secured between the front end of the upper door 6 and the front side wall 1a of the cabinet 1, the upper door 6 interferes with the cabinet 1 when the outer door 2 is opened and closed. ) And the opening / closing operation cannot be performed smoothly. Therefore, in the past, the gap is sufficiently secured in advance in terms of design so as to avoid interference (swing) between the upper door 6 and the cabinet 1, but it is sufficient in the range of the limited opening space in the front part of the cabinet. In order to secure the play gap, the plate thickness of the heat insulating inner door 5 must be reduced by that amount, and as a result, the heat insulating performance is also adversely affected.
[0008]
The present invention has been made in view of the above points, and its object is to solve the above-mentioned problems, while ensuring a sufficient thickness of the heat-insulated inner door attached to the back surface of the outer door, and between the upper door and the cabinet. It is an object of the present invention to provide an improved vending machine door device that can smoothly open and close the door by skillfully avoiding the interference associated with opening and closing the door.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a front door of a cabinet in which a product storage rack is mounted in a cabinet is provided with a single-open outer door, and a heat insulation inner door on the inside of the cabinet, and the heat insulation inner door is a product. The upper door is divided into an upper door that covers the surface area of the product replenishment opening that opens to the upper front of the storage rack and a lower door that covers the front area of the lower part of the cabinet, and the upper door is attached to the back of the outer door and removed. In the vending machine that opens and closes together with the door, the width of the upper door is assigned to a short and small size so that the front end of the door does not interfere with the front side wall of the cabinet, and then the short portion is supplemented. As shown in the figure, the tip of the upper door is connected with a retractable auxiliary door plate that can be folded backward, and the auxiliary door plate is spring-biased in the folding direction, and the folding stop position of the auxiliary door plate by the stopper is set. When opening and closing the outer door, Ri tip of collapsed auxiliary door plate does not interfere with the front side wall of the cabinet, the tip of the immediately before the outer door closed auxiliary door plate is configured to determine to be in contact with the internal opening edge of the cabinet (claim 1) as the to and specifically the auxiliary door panel, the mounting base hinge pin, torsional pivotally linked structure and without the upper door via the coil spring, the rear by a spring-biased upon opening the outer door When the outer door is folded and closed, the inside of the cabinet is sealed by pressing against the inside opening edge of the cabinet (claim 2).
[0010]
In such a configuration, when the outer door is opened forward from the closed position, the auxiliary door plate connected to the upper door of the heat insulating inner door is folded backward by the spring force of the biasing spring. Therefore, the upper door and the auxiliary door plate can be smoothly opened together with the outer door without interfering with the front side wall of the cabinet. In addition, when the outer door is pushed in from the open position, the tip of the auxiliary door plate hits the cabinet opening end surface immediately before the door closes, and when the outer door is pushed further from here, the auxiliary door plate becomes the heat insulating door surface. Return to a parallel posture and seal the interior.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 (a), 1 (b) and FIG. In addition, in the figure of an Example, the same code | symbol is attached | subjected to the same member corresponding to FIG. 4, FIG. 5, and the description is abbreviate | omitted.
First, FIGS. 1 (a) and 1 (b) show the structure of the heat insulating upper door 6 mounted on the back surface of the outer door 2. FIG. In this embodiment, the width A of the upper door 6 is assigned to a dimension shorter than the front opening B of the cabinet 1 (the interval between the gaskets 8 laid along the peripheral edge of the opening). In addition, the outer door 2 is mounted close to the suspension side, and when the outer door 2 is opened, the top end of the upper door 6 is set so as not to interfere with the front side wall 1a of the cabinet 1 and the upper door 6 A collapsible auxiliary door plate 9 that can be folded backward is connected to the front end (the side opposite to the suspension base (hinge pin 2a) of the outer door 2) so as to complement the short dimension.
[0012]
Here, as shown in FIGS. 1 (b) and 2, the auxiliary door plate 9 is pivotally connected to the upper door 6a via the hinge pin 9a and attached to the hinge pin 9a. The spring biasing is performed so that it can be folded by swinging obliquely rearward from the rear surface of the upper door 6 by the spring force (arrow F) of the biasing spring (torsion coil spring) 9b spanned between the auxiliary door plate 9. Has been. Reference numeral 9c denotes a stopper for stopping the auxiliary door plate 9 in the folded position.
[0013]
With this configuration, in the state of FIG. 1 in which the outer door 2 is closed, the auxiliary door plate 9 is held in a posture parallel to the door surface of the upper door 6 as shown in the figure, and the tip thereof is on the end surface of the gasket 8. The inside of the storage is sealed by contact. On the other hand, opening the external door 2 in the front when product supply to the product storage rack, the auxiliary door plate 9 swings counterclockwise hinge pin 9a as a fulcrum by the urging of the spring 9a, rear as shown in Figure 3 Folded into a posture that protrudes (inside the cabinet). As a result, the tip of the auxiliary door plate 9 that accompanies the opening of the door with the hinge pin 2a of the outer door 2 as a fulcrum follows a movement trajectory T indicated by a chain line in FIG. Therefore, there is no generation of unjustified interference (swing) with the front side wall 1a of the cabinet 1 as described in FIG. 5, and it passes through the inside away from the front side wall 1a and opens together with the upper door 6. Become.
[0014]
Further, when the outer door 2 is pushed in from the open position, the upper and lower ends of the auxiliary door plate 9 are first laid on the inner opening edge of the cabinet 1 before reaching the fully closed position contrary to the opening operation. When the outer door 2 is pushed further from here, the auxiliary plate 9 returns from the folded position to the closed position shown in FIG. 1 (b) while its tip slides on the end face of the gasket 8 by the pushing force. Seal the inside of the cabinet. Therefore, there is no possibility that the upper door 6 and the auxiliary door plate 9 and the front side wall 1a of the cabinet 1 will interfere unduly and obstruct the opening and closing of the door even in the process of closing the door.
[0015]
【The invention's effect】
As described above, according to the configuration of the present invention, the lateral width of the upper door of the heat-insulated inner door that is divided into the upper and lower parts and is attached to the back surface of the outer door so that the front end of the door does not interfere with the front side wall of the cabinet. After allocating to the short and small dimensions, the front end of the auxiliary door plate is connected with a folding auxiliary door plate that can be folded backward, and the auxiliary door plate is spring-biased in the folding direction . When opening and closing the outer door at the folding stop position, the tip of the auxiliary door plate folded by spring bias does not interfere with the front side wall of the cabinet, and the tip of the auxiliary door plate is By configuring it so as to abut against the opening edge of the cabinet, it is possible to avoid interference between the upper door of the heat-insulated inner door and the cabinet when opening and closing the door, which has been a problem with conventional door devices. While ensuring a sufficient thickness of It is possible to open and close the upper door of the heat insulating door smoothly with the door.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a door device according to an embodiment of the present invention, in which (a) is a cross-sectional plan view of the entire cabinet, and (b) is an enlarged view of the main part structure in FIG. FIG. 3 is an operation explanatory diagram showing the behavior of the auxiliary door plate when the door is opened according to the configuration of FIG. 1. FIG. External view of the vending machine with the door open [Fig. 5] Cross-sectional plan view of the conventional door structure adopted in the vending machine in Fig. 4 [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cabinet 2 Outer door 2a Hinge pin 3 Commodity storage rack 5 Thermal insulation inner door 6 Upper door 7 Lower door 8 Gasket 9 Auxiliary door plate 9a Hinge pin 9b Energizing spring

Claims (2)

The area of the product replenishing port that has a single-open outer door on the front of the cabinet with the product storage rack in the cabinet, and a heat-insulated inner door on the inside of the cabinet, and the heat-insulated inner door opens on the upper front of the product storage rack. In a vending machine that is divided into an upper door that covers the front and a lower door that covers the front area of the lower part of the cabinet, and then the upper door is attached to the back of the outer door and opened and closed together with the outer door. The horizontal width of the upper door is assigned to a short and small size so that the front end of the door does not interfere with the front side wall of the cabinet, and the front end can be folded backward and stopped in a folding position by a stopper. Auxiliary door plates are connected, and the auxiliary door plates are spring-biased in the folding direction, and the auxiliary door plate folding stop position by the stopper is the auxiliary that is folded by spring bias when opening and closing the outer door The top of the door plate is the cabinet Front side wall and without interference, the door device for an automatic vending machine tip of just before the outer door closed auxiliary door plate, characterized in that the defined to abut the internal opening edge of the cabinet. 2. The door device according to claim 1, wherein the auxiliary door plate has a structure in which an attachment base portion is pivotally connected to the upper door via a hinge pin and a torsion coil spring, and when the outer door is opened, the auxiliary door plate is moved backward by a spring bias. A door device for a vending machine characterized in that when folded and closed, the outer door is pressed against the opening edge of the cabinet to seal the interior.

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