JPS6033497Y2 - Improvement of vending machine display device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a display device for a vending machine.

Vending machines that operate under advance control control using coins inserted by customers have certain states visually visible to the user, such as displaying products for sale, displaying products sold out, and displaying change. It has a built-in display device.

This type of display device, as shown in FIG. A lamp 14 having an illuminance of 5W and a rated voltage of about 110V is housed inside.

According to this configuration, since the lamp 14 is a point light source, it is difficult to illuminate the entire surface of the display board 10 with uniform luminous intensity, and uneven illumination is likely to occur in the corners.

Therefore, it is necessary to increase the capacity of the lamp 14 or increase the capacity of the display board 10.
Since it is necessary to set a large distance between the display device and the lamp 14, there is a problem in that the display device occupies a large space.

Additionally, increasing the lamp capacity also increases the amount of heat generated.
The temperature inside the sealed lamp box 12 is between 60 and 70 degrees in summer.
℃, which has an adverse effect on the wrapping section and has an adverse effect on the life of the lamp 14 itself.

Furthermore, when two types of displays are arranged in parallel and irradiated with light, as shown in FIG. 1, a partition plate 16 is required, and therefore the lamp box 12 must necessarily have a sealed structure.

The present invention was devised to solve all of the above-mentioned difficulties at once, and the acrylic resin plate has the property of uniformly diffusing the incident light from the end surface, and the uniformly diffused light is directed to the front surface. The idea was that uniform illumination of the front surface could be achieved by reflecting the light.

That is, the gist of the present invention is to form a block substrate made of acrylic resin, provide a display plate made of a light-transmitting material on the front side of the block substrate, and provide a light reflective sheet on the back side. Direct the reflective surface to the front,
Furthermore, in addition to arranging the lamp in the lamp insertion slot provided inside this block board, in order to prevent the light from the lamp from leaking from the front surface and the peripheral end face of the block board, the front surface of the block board opposite to the lamp insertion slot is placed. To provide a display device for a vending machine, characterized in that a light shielding plate is provided on the block substrate, and a light shielding tape is provided on the peripheral end surface of the block substrate.

Next, preferred embodiments of the display device according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIGS. 2 to 4, reference numeral 20 indicates a rectangular block substrate, and this block substrate 20 is made of a transparent member made of acrylic resin.

The block substrate 20 has a relatively large front and back surface with four peripheral edges connecting the front and back surfaces.

In FIGS. 2 and 3, the thickness of the substrate 20, that is, the width of the peripheral end face is exaggerated for convenience of explanation, but in reality, a thickness of about 5 to 1 is sufficient.

On the front side of the block board 20, there is a display board 22 on which displays necessary for the front control operation of the vending machine, such as characters such as 'On sale, sold out,''Nochange,' and illustrations of the format of the products being sold. Paste using transparent adhesive.

This display board 22 is made of a light-transmissive material, such as a transparent acrylic board, and after printing necessary characters on the display side, non-glare processing (to prevent glare) is applied to the back side (the side that contacts the front surface of the board 20). It is preferable that the material be coated with a desired light-transmitting color.

Note that instead of pasting the display board 22, a display section may be provided by directly drawing characters or the like on the front surface of the block substrate 20.

Next, a light reflective sheet 24 is fixed to the back surface of the block substrate 20 by pasting or other means so that its reflective surface is directed toward the front surface of the substrate 20 (see FIG. 3).

In the example, a case is shown in which an adhesive sheet is used in which an aluminum foil is provided with uneven step portions to form a diffused reflection surface.

In addition, a substrate 20 formed on the back surface with an aluminum light reflecting surface oriented toward the front surface by vacuum evaporation may also be suitably used.

Further, a second
As shown in FIGS. 3 and 3, a lamp insertion port 26 is bored,
The lamp portion of the illumination lamp 14 is accommodated within this insertion opening 26 .

In this case, between the lamp insertion port 26 and the lamp 14,
A certain annular gap is provided, and this gap is communicated with the outside for heat radiation.

Further, in order to prevent the direct light from the lamps 14 from passing through the front surface of the board, a light shielding plate 28 is attached to each peripheral end surface of the display board 22 with a light shielding tape 30, and as will be described later, the lamps 14 are
This prevents light from leaking from the edge of the substrate.

To explain the operation and effect of the display device according to the present invention configured as described above, the display device is attached to the entire display section of the front door of a vending machine, and the lamp 14 is illuminated.

Generally, a thick plate of acrylic resin has the property of easily transmitting and diffusing light from end face to end face, but having difficulty in transmitting light rays from the surface to the end face (or from the end face to the surface).

However, in the present invention, since the light reflecting surface 24 is provided on the back surface of the substrate 20, as shown in FIG. The light reaches the surface, is diffusely reflected, travels straight to the front surface of the substrate, and is transmitted through the display panel 22.

That is, the incident light is reflected by the reflective surface at a substantially equal angle, illuminating the display panel with uniform illuminance.

Although it is indirect light, it works not as a point light source but as a surface light source, and as mentioned above, the light shielding plate 2
8 and a light-shielding tape 30 are provided to prevent light from leaking, so that the entire illuminated display surface is uniform and characters and figures stand out sharply and clearly.

Therefore, unlike conventional display devices, there is no uneven illumination, and there is no need to increase the capacity of the lamp or install additional lamps to increase the brightness, so the amount of heat generated can be minimized and the lamp life can be maintained for a long time. It is possible to achieve low manufacturing costs.

Furthermore, since a lamp box is not required, it is possible to construct an extremely thin structure as shown in FIG. 4, and the space occupied can be greatly reduced.

When using a plurality of display devices in parallel, two or more block substrates 20 are arranged in parallel as shown in FIG. The light shielding tape 30 is placed on the substrate 20 as described above.
Since the light from the block A does not leak into the block B and illuminate the display area of B.

The display device according to the present invention has been described above with reference to preferred embodiments, but the present invention is not limited to these embodiments, and various improvements and changes may be made without departing from the spirit of the invention. It's something you get.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing the structure of a conventional illuminated display device, and FIG. 2 is a partially cutaway perspective view of the display device according to the present invention, with the thickness exaggerated. 3rd
The figure is a longitudinal sectional view of the display device shown in FIG. 2 taken along a vertical plane passing through the longitudinal axis of the lamp insertion opening, and FIG. 4 is a cross-sectional view of the display device shown in FIG. It is an explanatory perspective view. 10... Display board, 12... Lamp box, 14... Lamp, 16... Partition plate, 20... Block board, 22・・・・・・
Display board, 24...Light reflective sheet, 26...
...Lamp insertion slot, 22...Light shielding plate, 30.
...Light-shielding tape.

Claims (1)

[Scope of utility model registration request] A display consisting of a block substrate made of acrylic resin and having a relatively large front and back surface and a peripheral edge surface connecting the front and back surfaces, and a light-transmitting material provided on the front surface of the block substrate. a light reflecting sheet provided in contact with the back surface of the block board with the reflective surface facing inside; a lamp insertion port provided inside the block board from the back side; and a lamp placed in the lamp insertion port. , comprising: a light shielding plate provided on the front surface of the block substrate facing the lamp insertion slot; and a light shielding tape provided on the peripheral end surface of the block substrate, the light from the lamp being directed toward the display board by a reflective surface. oriented vending machine display device.