JP3294984B2 - Gate panel with lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate panel in an anti-theft device for protecting a product from shoplifting by attaching an anti-theft device to a display in a store.

[0002]

2. Description of the Related Art As shown in FIG.
Installed with. In this example, a battery, a buzzer driven by the battery, and a receiving circuit are built in the antitheft device main body.

A gate panel 4 for radiating a signal is installed at the entrance to the store, and a low-frequency magnetic field having a frequency of about 30 KHz is formed near the gate panel 4.

When the user passes the vicinity of the gate panel 4 to take out the in-store exhibit 1 with the anti-theft device main body 2 attached, the receiving circuit of the anti-theft device main body 2 detects the low-frequency magnetic field. Then, a buzzer built in the anti-theft device main body 2 sounds to notify the occurrence of fraud.

The gate panel 4 has a transmitter built in a base 4a, and the transmitter has a low-frequency magnetic field of about 30 KHz formed using a frame-shaped coil embedded in the panel 4b as an antenna.

[0006]

SUMMARY OF THE INVENTION Conventional gate panel 4
Since b has a configuration in which a frame-shaped coil is simply embedded in the panel 4b, there is a problem that the installation of the gate panel 4 blocks part of the illumination light P from the surroundings and darkens the passage 5.

In addition, in order to display an advertisement or a message, it is necessary to install a bulletin board or an illuminated signboard with a built-in fluorescent tube in addition to the gate panel 4. There is a problem that the signboard blocks the traffic.

[0008] The present invention can illuminate the installed environment,
An object of the present invention is to provide a gate panel with a lighting device capable of displaying an advertisement or a message.

[0009]

According to a first aspect of the present invention, there is provided a gate panel provided with a lighting device, which is installed near an entrance to an area where an article to be protected is displayed and emits a signal. A light guide plate is arranged side by side, a light source is arranged at one end of the light guide plate on the incident side, and light incident from the light source to the inside of the light guide plate is emitted in a direction intersecting the winding surface of the antenna coil. The low frequency magnetic field is generated from the antenna coil. Despite being able to illuminate the surroundings, the use of a light guide plate allows the light source to be placed on the side of the light guide plate instead of the back surface of the light exit surface of the light guide plate, realizing a thin gate panel. it can.

According to a second aspect of the present invention, there is provided the gate panel with the illuminating device according to the first aspect, wherein a fluorescent discharge tube as a light source is disposed close to an incident side end surface of the light guide plate, and has a reflective surface inside and the fluorescent discharge tube. Since the reflector that guides the light emitted from the tube to the incident end face of the light guide plate is provided, not only the light emitted from the fluorescent discharge tube to the incident side of the light guide plate but also the light emitted from the fluorescent discharge tube to the rear side is reflected. Thus, the light can be sent into the light guide plate from the incident side.

According to a third aspect of the present invention, there is provided a gate panel with an illuminating device according to the first and second aspects, wherein two light guide plates are arranged with the antenna coil at the center, and a light source is arranged at one end of each light guide plate on the incident side. In addition, since the light incident on each light guide plate from the light source is emitted in a direction intersecting the winding surface of the antenna coil, the illumination light can be output not only on one side but also on both sides of the gate panel.

According to a fourth aspect of the present invention, there is provided a gate panel with a lighting device according to the third aspect, wherein the antenna coil is located at a center of the gate panel.
A plurality of light guide plates, a single light source is disposed at one end of each light guide plate on the incident side, and light incident from the light source into each light guide plate is emitted in a direction intersecting the winding surface of the antenna coil. With this configuration, a single light source can output illumination light to both sides.

According to a fifth aspect of the present invention, there is provided a gate panel with a lighting device according to any one of the first to fourth aspects, wherein a film storage portion for inserting a display film is formed on an emission surface of the light guide plate. The contents of the display can be replaced by replacement.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. [First Embodiment] FIGS. 1 to 4 show a [first embodiment].

A coil support frame 8 is mounted on the upper end of the machine base 6 via a lamp holder 7. The antenna coil 9 wound up in a frame shape is provided in the recess 8 of the coil support frame 8.
a. Lead wire 9 of antenna coil 9
a is connected to an output terminal of the transmitter 10 installed inside the machine base 6.

The first and second light guide plates 1 are arranged on both sides of the coil support frame 8 on which the antenna coil 9 is set.
1a and 11b are set. The first and second light guide plates 11 a and 11 b have the same configuration, and a reflection film 12 is formed on a surface facing the coil support frame 8.

In this embodiment, both the first and second light guide plates 11a and 11b are provided with a plurality of fluorescent discharge tubes 13 (see FIG. 4) in the height direction in the vicinity of the incident side end face A. Attached to. Each fluorescent discharge tube 13 is connected to an inverter power supply (not shown) installed in the lamp holder 7 and is driven to light at a frequency of several tens KHz.

The light emitted from the fluorescent discharge tube 13 and entering the inside of the first and second light guide plates 11a and 11b from the incident side end faces A of the first and second light guide plates 11a and 11b is converted into respective light guides. The illumination light Pa, Pb is scattered by colliding with the reflection film 12 formed on the light plate, in the direction intersecting the winding surface of the antenna coil 9 from the emission surfaces B of the first and second light guide plates 11a, 11b. Radiated.

A window member 15 is attached to the emission surfaces B of the first and second light guide plates 11a and 11b via a spacer plate 14, and the emission surfaces of the first and second light guide plates 11a and 11b. Between B and the spacer plate 14, a film storage portion 16 into which a display film is inserted is formed.

Reference numeral 17 denotes a reflector that covers the back of the fluorescent discharge tube 13 and is attached to the lamp holder 7 with mounting screws 18. Reference numeral 19 denotes a holding plate used to attach the window member 15, the spacer plate 14, and the first and second light guide plates 11a and 11b to the lamp holder 7. Reference numeral 20 denotes a first decorative cover that covers the end of the lamp holder 7, and reference numeral 21 denotes a second decorative cover that covers the exposed end surfaces of the first and second light guide plates 11a and 11b. 22a and 22b are decorative covers of the machine base 6.

With this configuration, the gate panel 4
A low-frequency magnetic field is generated from the antenna coil 9 embedded in the vicinity of the area where the gate panel 4 is installed. In the vicinity where the gate panel 4 is installed,
It is illuminated with illumination light Pa, Pb from the fluorescent discharge tube 13 via the first and second light guide plates 11a, 11b.

The light emitted from the fluorescent discharge tube 13 to the incident side end faces A of the first and second light guide plates 11a and 11b is
Not only the light emitted from the fluorescent discharge tube 13 to the incident side end face A side (front), but also the light emitted to the opposite side (rear) to the incident side end face A is reflected by the reflector 17 to the incident side end face A. Since the light is irradiated, bright illumination light Pa and Pb can be obtained with good efficiency.

The single light guide plate 11a and the single light guide plate 11b
Are illuminated by a plurality of fluorescent discharge tubes 13, respectively. However, the light guide plates 11a and 11b may be illuminated by a single fluorescent discharge tube.

[Second Embodiment] FIG. 5 shows a second embodiment. In the first embodiment, the first and second
Although the fluorescent discharge tubes 13 for illuminating the incident side end face A are separately provided with the light guide plates 11a and 11b, the incident side end face A of the first and second light guide plates 11a and 11b is common in this embodiment. Are illuminated by the fluorescent discharge tube 23. In addition, the light radiated on the opposite side (back) from the incident side end face A is reflected by the reflector 1
7a, the first and second light guide plates 11a and 11b are illuminated on the incident side end surface A side, and bright illumination light Pa and Pb are obtained.

The number of the fluorescent discharge tubes 23 with respect to the first light guide plate 11a may be singular or plural in the height direction. Similarly, the number of the fluorescent discharge tubes 23 with respect to the second light guide plate 11b may be singular or plural in the height direction.

Third Embodiment FIG. 6 shows a third embodiment. [First Embodiment] [Second Embodiment] In the second embodiment, illumination light Pa, Pb
However, this [Third Embodiment] shows a case in which the illumination light Pa is radiated from only one surface, and the light guide action is performed instead of the second light guide plate 11b in the previous embodiment. A panel material 24 that is not provided is set.

When the display film 25 on which the advertising message and the message are recorded as shown in FIG. 3 is set in the film storage section 16 in each of the above embodiments, the display film 25 is illuminated with the illumination light Pa, Pb or the illumination light Pa. 25 is transparently illuminated, and there is no need to install a bulletin board or an illuminated signboard separately from the gate panel 4, so that smooth traffic of customers near the entrance of the store can be expected.

[0028]

According to the first aspect of the present invention, a light guide plate is juxtaposed along the winding surface of the antenna coil, a light source is disposed at one end of the light guide plate on an incident side, and the light source is disposed inside the light guide plate from the light source. Since the incident light is emitted in a direction intersecting with the winding surface of the antenna coil, a low-frequency magnetic field is generated separately from the antenna coil. The surroundings can be illuminated.
Further, by using the light guide plate, the light source can be arranged on the side of the light guide plate, not on the back surface of the emission surface of the light guide plate, and the gate panel can be made thin.

According to the second aspect of the present invention, in the first aspect, the fluorescent discharge tube as a light source is disposed close to the incident side end face of the light guide plate, has a reflection surface inside and emits light from the fluorescent discharge tube. The light guide plate that guides the reflected light to the incident side end face of the light guide plate provides not only light emitted from the fluorescent discharge tube to the light guide plate incident side but also light emitted from the fluorescent discharge tube to the rear side by the light guide plate. Can be sent inside from the entrance side, and bright illumination can be expected.

According to a third aspect of the present invention, in the first and second aspects, two light guide plates are arranged with the antenna coil at the center, and a light source is arranged at one end of each light guide plate on the incident side. Since the light incident from the light source into each light guide plate is emitted in a direction intersecting the winding surface of the antenna coil, the illumination light can be output not only on one side but also on both sides of the gate panel.

According to a fourth aspect of the present invention, in the third aspect, the two light guide plates are arranged with the antenna coil at the center, and a single light source is arranged at one end of each light guide plate on the incident side. Thus, the light incident on each light guide plate is emitted in a direction intersecting the winding surface of the antenna coil, so that a single light source can output illumination light to both surfaces.

According to the fifth aspect of the present invention, in the first to fourth aspects, a film storage portion for inserting a display film is formed on the emission surface of the light guide plate, and the display is performed by exchanging the display film inserted into the film storage portion. Can be replaced, and any advertisement text or message text can be illuminated by transmission.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of a first embodiment of a gate panel with a lighting device of the present invention.

FIG. 2 is an external perspective view of the embodiment.

FIG. 3 is an exploded perspective view of the embodiment.

FIG. 4 is a longitudinal sectional view of the embodiment.

FIG. 5 is a horizontal sectional view of the second embodiment.

FIG. 6 is a horizontal sectional view of a third embodiment.

FIG. 7 is an explanatory view of a conventional anti-theft device using a gate panel.

[Explanation of symbols]

 Reference Signs List 9 antenna coil 11a first light guide plate 11b second light guide plate 13 fluorescent discharge tube [light source] 15 window material 16 film accommodating portion 17 reflector 25 display film A incident side end surface B emission surface Pa illumination light Pb illumination light

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G08B 13/24 F21V 8/00 601 H01Q 1/00

Claims (5)

(57) [Claims] 1. A gate panel installed near an entrance to an area where an article to be protected is displayed and radiating a signal, a light guide plate is juxtaposed along a winding surface of an antenna coil,
A gate panel with a lighting device, wherein a light source is disposed at one end of the light guide plate on an incident side, and light incident from the light source into the light guide plate is emitted in a direction intersecting a winding surface of the antenna coil. 2. A fluorescent light discharge tube as a light source is disposed close to an incident side end face of a light guide plate, has a reflection surface inside, and reflects light emitted from the fluorescent discharge tube to an incident side end face of the light guide plate. The gate panel with a lighting device according to claim 1, further comprising an umbrella. 3. Two light guide plates are arranged with the antenna coil at the center, a light source is arranged at one end of each light guide plate on the incident side, and light incident from the light source into each light guide plate is transmitted to the antenna coil. 3. The gate panel with a lighting device according to claim 1, wherein the light is emitted in a direction intersecting the winding surface. 4. Two light guide plates are arranged with the antenna coil at the center, a single light source is arranged at one end of each light guide plate on the incident side, and light incident from the light source into each light guide plate is transmitted to the light guide plate. 4. The gate panel with a lighting device according to claim 3, wherein the light is emitted in a direction intersecting the winding surface of the antenna coil. 5. The gate panel with an illuminating device according to claim 1, wherein a film accommodating portion for inserting a display film is formed on an emission surface of the light guide plate.