JPH1153655A - Burglar prevention gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burglar prevention gate with improved efficiency of wire winding work in the process of manufacturing an antenna. SOLUTION: This gate 1 is provided with a transmission antenna 2 on a base with a built-in circuit board 40, wherein the transmission antenna 2 is constituted by winding a wire 21 around a U-shaped winding wire guide frame 3, which is constituted of two vertically extending arm parts 3a parallel to each other and a circular-arcuate connection part 3b for connecting both arm parts 3a with each other at the respective upper end parts, while the lower end parts of both arm parts 3a are fixed onto the base. On the winding wire guide frame 3, a winding wire guide groove 32 extending from the lower end of one arm part 3a through the connection part 3b to the lower end of the other arm part 3a is formed. The winding wire guide groove 32 is provided with a trapezoidal cross sectional shape and is provided with an opening part 31 opened to an outer side over the entire length. Both ends of the winding wire 21 are connected to the circuit board 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device for protecting goods displayed in a store from fraudulent acts such as shoplifting, and more particularly, to transmitting an alarm signal to and from an anti-theft device passing through an alarm area. And / or an anti-theft gate with an antenna to be received.

[0002]

2. Description of the Related Art Conventionally, in a store where products such as compact disk cassettes and magnetic tape cassettes are displayed and sold, in order to protect these products from fraudulent acts such as shoplifting, an antitheft device as shown in FIG. Has adopted. The anti-theft device comprises an anti-theft gate (10) installed near the outlet (5) of the store and an anti-theft device main body (9) containing a compact disc cassette.

The anti-theft gate (10) has a circuit board (40) inside a base (4) and a transmitting antenna on the base (4).
(20) is erected. The circuit board (40) includes a transmission circuit (not shown) for generating an alarm signal for the anti-theft device (9). The transmitting antenna (20) is configured by applying a winding (21) inside a U-shaped circular tube (30) as shown in FIGS. 13 and 14, and both ends of the winding (21) are It is connected to the circuit board (40).

On the other hand, the main body 9 of the anti-theft device comprises a transparent case 91 made of synthetic resin, a circuit board 92, an alarm operation switch 93 and a buzzer 94 as shown in FIG. In the transparent case (91), a cassette (90) accommodating a compact disc is accommodated so as to be able to be inserted and removed. Circuit board
(92) includes a receiving circuit (not shown) for receiving an alarm signal from the transmitting antenna (20) of the anti-theft gate (10). The buzzer (94) is a circuit board (92) and an alarm activation switch
The operation is controlled by (93), and when the cassette (90) is illegally removed from the transparent case (91), or when the antitheft device body (9) passes through the antitheft gate (10). It is to sound. At a store, the cassette (90) is stored in the transparent case (91) of the antitheft device body (9) and displayed. When selling the cassette (90) to customers,
After setting (94) not to sound, transparent case (91)
The cassette (90) is taken out from the store and handed the cassette (90) to the customer in exchange for the price.

When the customer unjustly removes the cassette (90) from the transparent case (91) of the antitheft device body (9), the alarm operation switch (93) is turned on and the buzzer (94) sounds. become. Also, the main body of the anti-theft device
When the user attempts to take the device out of the store together with (9), the circuit board (92) of the antitheft device main body (9) receives an alarm signal from the transmitting antenna (20) of the antitheft gate (10) shown in FIG. hand,
The buzzer (94) will sound.

[0006]

However, in the anti-theft gate (10), the circular tube of the transmitting antenna (20) is used.
Since (30) has a closed cross-sectional shape as shown in FIG. 14, when the winding (21) is applied inside the circular pipe (30), the conducting wire must be repeatedly passed through the internal hole of the circular pipe (30). There is a problem that the work efficiency is poor. An object of the present invention is to provide an anti-theft gate capable of improving the efficiency of winding work in a process of manufacturing an antenna.

[0007]

An anti-theft gate according to the present invention comprises an antenna for transmitting and / or receiving an alarm signal to and from an anti-theft device passing through an alarm area.
The antenna is configured by applying a winding to a winding guide frame. The winding guide frame is provided with at least one winding guide groove having an opening extending over the entire length in the longitudinal direction, and a winding is applied along the winding guide groove.

[0008] In the anti-theft gate according to the present invention,
Since the winding guide groove has an opening extending over the entire length in the longitudinal direction of the winding guide frame, when applying a winding to the winding guide frame, the conductive wire is wound from the opening of the winding guide groove. The wire can be wound while being fitted into the inner part of the wire guide groove, and the efficiency of the winding operation is improved as compared with the conventional anti-theft gate which has to repeatedly pass the conductor through the inner hole of the circular tube.

Specifically, at the opening of the winding guide groove,
A shield member is detachably fitted over the entire length.

[0010] According to this specific configuration, since the opening of the winding guide groove is closed by the shield member, the winding is protected from moisture and the like. Thereby, the weather resistance of the winding is improved, and the life of the antenna is improved. In addition, if the shield member is removed, the winding can be inspected from the opening of the winding guide groove, and since the cross-sectional shape of the circular tube was closed, the winding was removed from the circular tube and the work was done conventionally The maintenance of the antenna is easier than the anti-theft gate. Further, when the winding is repaired or replaced, it is easy to remove the winding from the winding guide frame.

Further, specifically, the shield member is formed of a cushioning material. According to this specific configuration, even if the customer collides with the winding guide frame of the anti-theft gate, the impact force received by the customer is reduced by the shield member, which is small and safe.

[0012] More specifically, the winding guide frame is composed of two substantially parallel arms that hold the panel and extend in a substantially vertical direction, and a connecting portion that connects the two arms to each other at their upper ends. The panel can be mounted between both arm portions. A panel guide groove for guiding insertion of the panel is formed in the longitudinal direction on the inner side surfaces of both arm portions. Specifically, the entire winding guide frame is formed in a U shape or a U shape.

In this specific configuration, in the assembling process, the panel is inserted from between the lower ends of the two arms. As a result, the panel is guided and moved by the panel guide grooves formed in both arm portions, and is mounted at a predetermined position on the winding guide frame. As a result, the panel is held in a posture in which the surface is substantially vertical. According to this specific configuration, shop guidance and product information can be displayed on the surface of the panel.

[0014]

According to the anti-theft gate of the present invention,
When applying a winding to the winding guide frame, the conductor can be wound while being fitted into the depth of the winding guide groove from the opening of the winding guide groove, so that the efficiency of the winding operation is improved as compared with the conventional case. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention applied to a device for preventing theft of a cassette containing a compact disk will be specifically described with reference to the drawings. First Embodiment The anti-theft device according to the present embodiment has an anti-theft gate shown in FIG.
(1) and the same anti-theft device main body as the conventional one shown in FIG.
(9). The anti-theft gate (1) includes a circuit board (40) inside a base (4) as shown in FIG. 1, and a transmission antenna (2) is erected on the base (4). The circuit board (40) includes a transmission circuit (not shown) for generating an alarm signal for the anti-theft device (9).

The transmitting antenna (2) is formed by applying a winding (21) to an inverted U-shaped winding guide frame (3) integrally formed of resin or the like. The winding guide frame (3) is composed of two vertically extending arms (3a) (3a) and both arms (3a) (3a).
Are connected to each other at their upper ends by an arc-shaped connecting portion (3b).
The lower ends of both arms (3a) (3a) are fixed on the base (4). As shown in FIGS. 1 and 2, the winding guide frame (3) has a winding guide extending from the lower end of one arm (3a) to the lower end of the other arm (3a) via the connecting portion (3b). A groove (32) is recessed. The winding guide groove (3
2) has a trapezoidal cross-sectional shape, and has an opening (31) opened outward over the entire length. The winding guide frame (3) is provided with a winding (21) along a winding guide groove (32), and both ends of the winding (21) are connected to a circuit board (40).

In the above anti-theft device, the base (4)
An alarm signal is generated from a transmission circuit of a circuit board (40) incorporated in the antenna, and the alarm signal is supplied to a transmission antenna (2).
It is emitted from the transmitting antenna (2) to the outside. Cassette (90)
The transparent case (91) of the antitheft device body (9) shown in FIG.
When the device is illegally passed through the anti-theft gate (1) shown in FIG. 1, the anti-theft device body (9) receives a warning signal from the transmitting antenna (2) of the anti-theft gate (1), The built-in buzzer (94) will sound.

In the anti-theft gate (1), when the winding (21) is applied to the winding guide frame (3) in the process of manufacturing the transmitting antenna (2), the conductor is inserted into the winding guide groove (32). Opening (3
From 1), the wire is wound while being fitted into the inner part of the winding guide groove (32). Therefore, the winding work is easier than the conventional anti-theft gate, and the work efficiency is improved.

Second Embodiment As shown in FIGS. 6 and 8, the winding guide frame (33) of the present embodiment covers the winding guide groove (35), and the shield member (6) can be mounted thereon. At the same time, the panel (7) can be mounted.

In the anti-theft gate (11) of this embodiment, the transmission antenna (22) applies the winding (21) to the inverted U-shaped winding guide frame (33) similar to the first embodiment. The winding guide frame (33) is composed of two arm portions (33a) (33a) and a connecting portion (33b) connecting the two arm portions (33a) (33a) to each other. . As shown in FIG. 8, a winding guide groove (35) similar to that of the first embodiment is formed in the winding guide frame (33).
The winding guide groove (35) has an opening (34) opened outward over the entire length.

The winding guide frame (33) has a single panel (7) capable of displaying shop information and product information in a space surrounded by the winding guide frame (33) as shown in FIG. Is mounted in a vertical position. The panel (7) is received by the base (4). As shown in FIG. 7, on the inner peripheral surface of the winding guide frame (33), a lower end of one arm (33a) of the winding guide frame (33) passes through a connecting portion (33b), and the other arm (33a). A panel guide groove (36) extending to the lower end of () is recessed. Meanwhile, the panel
(7) is formed to have substantially the same thickness as the width of the panel guide groove (36) as shown in FIGS.
6) is formed in an outer shape corresponding to the area surrounded by, and the outer peripheral portion is fitted in the panel guide groove (36) as shown in FIG.
Mounted on the winding guide frame (33).

FIGS. 6 and 8 show the winding guide frame (33).
As shown in the figure, a shield member (6) made of a cushioning material such as urethane or silicone rubber is provided in the opening (34) of the winding guide groove (35).
Are detachably attached over the entire length. As shown in FIG. 8, the shield member (6) has an inner peripheral portion (61) having a width slightly larger than the opening (34) of the winding guide groove (35), and an opening of the winding guide groove (35). Intermediate part having substantially the same width as (34)
(62) and an outer peripheral portion (6) having a width larger than the inner peripheral portion (61).
3), and the intermediate portion (62) is fitted in the opening (34).

In the assembling process of the anti-theft gate (11), the panel (7) is moved upward from between the lower ends of both arms (33a) and (33a) of the winding guide frame (33) as shown in FIG. Inserted towards. As a result, the panel (7) is connected to both arms (3
3a) It is guided and moved by the panel guide groove (36) formed in (33a), and finally the upper end portion is inserted into the panel guide groove (36) of the connecting portion (33b) of the winding guide frame (33). In the fitted state, FIG.
Is mounted on the winding guide frame (33) as shown in FIG.

The shield member (6) is connected to the winding guide frame (33).
When the inner peripheral portion (61) of the shield member (6) is pressed against the opening (34) of the winding guide groove (35), the inner peripheral portion (61) of the shield member (6) is It is pressed against the inner peripheral wall of (34) and elastically contracts, and after passing through the opening (34), the intermediate part (62)
Are accommodated in the winding guide groove (35) in a state fitted in the opening (34). At the same time, the inner peripheral portion (61) of the shield member (6) is elastically restored and engages with the opening (34), whereby the shield member (6) is prevented from coming off. On the other hand, when the shield member (6) is pulled out of the winding guide frame (33) so as to remove the shield member (6) from the winding guide frame (33), the inner peripheral portion (61) of the shield member (6) is pulled. Is pressed against the inner peripheral wall of the opening (34) and elastically contracts, and the opening (34)
, And escapes to the outside of the winding guide groove (35).

According to the anti-theft gate (11) of this embodiment,
Since the shield member (6) is attached to the opening (34) of the winding guide groove (35) so as to cover the winding guide groove (35), the winding (21) is protected from moisture and the like. . Therefore, the anti-theft gate (11) can be arranged outside the store, which is effective when the space inside the store is too small to secure the installation space for the anti-theft gate (11).

Third Embodiment The anti-theft gate (12) of this embodiment is provided with a transmission antenna (22) on a base (4) as shown in FIG. 9 and the same as that of the second embodiment shown in FIGS. The winding guide frame (33) of the transmitting antenna (22) has a winding guide groove (3) as shown in FIGS.
A shielding member (6) is attached so as to cover 5). As shown in FIGS. 9 and 10, a single panel capable of displaying shop guidance and product information is provided above the space surrounded by the winding guide frame (33). (71) is mounted in a vertical position, and the panel (71) is received by the support member (8).

The panel (71) has a thickness smaller than the width of the panel guide groove (36) of the winding guide frame (33), and has an outer shape corresponding to the upper region surrounded by the panel guide groove (36). have. On the other hand, the support member (8) is provided with a winding guide frame (33).
Has a thickness substantially equal to the width of the panel guide groove (36).

In the assembling process of the anti-theft gate (12), the panel (71) is connected to the winding guide frame in the same manner as in the second embodiment.
The arm (33a) of (33) is inserted upward from between the lower ends of the (33a), and the upper end is connected to the connecting portion (33b) of the winding guide frame (33).
With the wire guide frame fitted in the panel guide groove (36)
Attached to (33).

On the other hand, like the panel (71), the support member (8) is inserted from between the lower ends of the arm portions (33a) and (33a) of the winding guide frame (33), and the upper end face is formed on the panel (71). As shown in FIG. 11, at the position where it abuts on the lower end face of (71), the winding guide grooves (3
Screw (81) is screwed from the bottom of 5), and the winding guide frame (3
It is fixed between the arm portions (33a) and (33a) of 3). As a result, the panel (71) is received by the support member (8).

In the first embodiment, the winding guide frame
In (3), a winding guide groove (32) having an opening (31) opened outward as shown in FIG. 2 is formed, but not limited to this, and as shown in FIGS. It is also possible to form a winding guide groove (3) having an opening (31) open to the rear or inside. In the first embodiment,
The winding guide frame (3) is provided with a single winding guide groove (32) having a trapezoidal cross section, but is not limited thereto.
As shown in (a) to (f), it is also possible to form concave winding guide grooves (32) having various cross-sectional shapes. Also, as shown in FIGS. 3 (c) to 3 (e), a plurality of winding guide grooves (32) can be recessed.

Further, in the first to third embodiments, the two arm portions (3a) (3a) (33a) (33a) and the connecting portions (3b) (3
3b) and U-shaped winding guide frame (3) (33)
However, the present invention is not limited to this, and as shown in FIG.
It is also possible to form a U-shaped winding guide frame (37) by connecting the two separately formed arm members (37a) (37a) and the connecting member (37b). The configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a theft prevention gate according to a first embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view showing a modified example of the winding guide frame of the first embodiment.

FIG. 4 is a sectional view showing another modified example of the winding guide frame of the above.

FIG. 5 is a sectional view showing still another modified example of the winding guide frame.

FIG. 6 is a perspective view showing the overall configuration of the anti-theft gate of the second embodiment.

FIG. 7 is an exploded perspective view showing a winding guide frame and a panel of the anti-theft gate.

FIG. 8 is a sectional view taken along line AA of FIG. 6;

FIG. 9 is a perspective view showing an entire configuration of a theft prevention gate according to a third embodiment.

FIG. 10 is a sectional view taken along line AA of FIG. 9;

FIG. 11 is a sectional view taken along line BB of FIG. 9;

FIG. 12 is a perspective view showing another embodiment in which the winding guide frame is constituted by three members.

FIG. 13 is a perspective view showing a schematic configuration of the entire anti-theft device.

FIG. 14 is a sectional view of a conventional transmitting antenna.

FIG. 15 is a perspective view showing the anti-theft device main body.

[Explanation of symbols]

 (1) Anti-theft gate (2) Transmission antenna (21) Winding (3) Winding guide frame (31) Opening (32) Winding guide groove (4) Base (40) Circuit board

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koji Nobuchi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (4)

[Claims] 1. An anti-theft gate having an antenna for transmitting and / or receiving an alarm signal to and from an anti-theft device passing through an alarm area, wherein the antenna is wound on a winding guide frame. The winding guide frame is provided with at least one winding guide groove having an opening extending over the entire length in the longitudinal direction, and a winding is applied along the winding guide groove. Anti-theft gate. 2. The anti-theft gate according to claim 1, wherein a shield member is detachably fitted over the opening of the winding guide groove over the entire length thereof. 3. The anti-theft gate according to claim 2, wherein the shield member is formed of a cushioning material. 4. The winding guide frame comprises two substantially vertically extending arms for holding the panel and which are parallel to each other, and a connecting portion for connecting the two arms at their upper ends, respectively. 4. The panel according to claim 1, wherein a panel can be mounted between the arms, and a panel guide groove for guiding insertion of the panel is formed in a longitudinal direction on an inner surface of each of the arms. Anti-theft gate described.