JP4333403B2 - Security detection unit - Google Patents

Description

  The invention of this application relates to a crime prevention detection unit which is useful for an infrared crime prevention device which is attached to an external fence or the like and detects an intruder, and which incorporates a beam sensor and a notification indicator.

  2. Description of the Related Art Conventionally, there is known an infrared crime prevention device in which a transmitter and a receiver serving as a beam sensor are arranged to face each other, and infrared rays are transmitted and received between them, and when infrared rays are blocked by an intruder (see FIG. For example, see Patent Document 1).

  This infrared crime prevention device is, for example, a fence crime prevention device that is attached to an exterior fence installed in a building such as a house, and performs notification or threatening when an intruder gets over the exterior fence to block infrared rays. It is considered that it can be used.

At this time, an integrated crime prevention detection unit including a transmitter or receiver beam sensor and a notification indicator as a warning light or threatening light is constructed, and a plurality of such detection units are installed in a security space such as an external fence. Infrared transmission / reception is performed between the transmission part of one adjacent security detection unit and the reception part of the other security detection unit, arranged opposite each other at an appropriate interval along the outer edge. A mode in which light such as notification light or intimidation light is emitted can also be considered.
Japanese Utility Model Publication No. 6-67908

  Here, in the integrated crime prevention detection unit, it is necessary to provide a display window for emitting the light from the notification indicator to the outside, and to use a transparent or milky white material that transmits light for the display window. Therefore, it is necessary to incorporate a member that is separate from the unit main body that is usually made of a rigid material that does not transmit light. For this reason, it is necessary to take a waterproof measure so that rainwater or the like does not enter the unit body.

  As a waterproof measure, it is conceivable to apply a sealant to a portion that comes into contact with the unit body or to insert a packing.

  However, when a sealant is used, it takes time and effort, and it is difficult to control the seal performance. When using a packing, it takes time and effort to fix the screw to hold down the packing. There is a problem that increases.

  Therefore, in view of the circumstances as described above, the invention of this application is to provide a security detection unit capable of assembling a unit by pressing the packing without trouble when providing a waterproofing packing. It is an issue.

  In order to solve the above problems, the invention of this application firstly combines a unit body on one side and a unit body on the opposite side with an internal substrate on which a notification indicator is mounted together with a beam sensor. In the unit body, a display cover that emits light from the notification indicator to the outside from the display window provided in the unit body is sandwiched between the unit bodies, and the unit body of this display cover The part that comes in contact with is provided with a step part for packing attachment, and when the display cover is sandwiched between the unit bodies, the packing attached to the step part for packing attachment comes into contact with the unit body and is crushed. The security detection unit is characterized in that the waterproof performance between the display cover and the display window is ensured. To provide.

  2ndly, the said detection unit for crime prevention provided with the partition structure located above and below a display cover and a display window inside a unit body is provided.

  3rdly, the said partition structure functions also as an insertion guide structure of the display cover when a display cover is pinched | interposed by a unit body, The said detection unit for crime prevention characterized by the above-mentioned is provided.

  Fourth, the crime prevention detection unit is characterized in that the partition structure also functions as an external light blocking structure for blocking external light entering from the display window.

  Fifth, the security detection unit is provided in which the partition structure also functions as a light collecting structure for collecting light from the notification indicator on a display window.

  According to the first security detection unit, when a unit body having a unit body divided into left and right (also referred to as front and rear) is assembled by combining one unit body and the opposite unit bodies, as described above. The display cover is provided between the unit bodies and is provided in the unit body. At this time, the packing attached to the display cover is further brought into contact with the unit body and crushed so that the display cover and the unit body are provided. Ensures waterproof performance between the display windows. In other words, the unit body can be assembled simply by combining the unit bodies, and the packing necessary for using a display cover such as transparent or milky white that is a separate member from the unit body can also be saved. It can be pressed down and mounted in the unit body.

  According to the second security detection unit, the same effect as that of the first security detection unit can be obtained, and the partition body having the features as described above is provided in the unit body, so that the unit body It is possible to realize effects such as an insertion guide for the display cover when being sandwiched between the two, blocking of external light entering from the display window, and condensing light from the notification indicator to the display window.

  According to the third security detection unit, the same effect as that of the second security detection unit can be obtained, and the partition structure also functions as an insertion guide structure, so that it can be sandwiched between unit bodies. The positioning of the display cover can be facilitated to guide the insertion, so that the packing can be more reliably crushed and the assembly workability can be further improved.

  According to the fourth crime prevention detection unit, the same effects as those of the second and third crime prevention detection units can be obtained, and the partition structure can also function as an external light blocking structure, so that the display window can be used. By blocking external light that enters, the visibility of the display window, that is, the visibility of light such as notification light or threatening light from the notification indicator can be improved.

  According to the fifth crime prevention detection unit, the same effects as those of the second to fourth crime prevention detection units can be obtained, and the partition structure also functions as a light collecting structure. The light such as the notification light and the threatening light can be more effectively collected on the display window, and the visibility of the light can be improved.

[First Embodiment]
1-5 is a figure for demonstrating one Embodiment of invention of this application.

  In the present embodiment, as shown in FIGS. 1 to 5, the transmitters (6a) and (6b) as beam sensors are provided on the upper and lower stages on one side of the security detection unit, and the upper and lower sides are provided on the opposite side. In the case of a so-called double beam transmitter / receiver back-to-back integrated configuration in which receivers (7a) and (7b) as beam sensors are provided in two stages, a notification indicator (8) is also provided. The case-shaped transmission side unit body (2) and the reception side unit body (3) constitute a unit main body (1). Within the unit main body (1), the transmission side unit body (2) and the reception side unit body ( 3), an internal substrate (4) and a display cover (5) are incorporated. The transmission side unit body (2) and the reception side unit body (3) also serve as a transmission side cover and a reception side cover.

  In this, first, the transmitters (6a) (6b) and the receivers (7a) (7b) are surfaces of a long plate-like inner substrate (4) extending vertically in the unit body (1). Attached to the rear surface are the corresponding positions on the transmitting side and the receiving side and the upper and lower two-stage positions. In addition, the notification indicator (8) is positioned between the upper and lower two-stage transmitters (6a) and (6b) and between the upper and lower two-stage receivers (7a) and (7b) on the front and back surfaces of the same internal substrate (4). Attached. The transmitter (6a) (6b), receiver (7a) (7b), and notification indicator (8) may be any element capable of emitting infrared light, receiving infrared light, and informing / intimidating light emission. For example, an infrared LED or a phototransistor can be considered.

  On the other hand, the display cover (5) for radiating light from the notification indicator (8) attached to the front and back surfaces of the internal substrate (4) to the outside has a frame shape (also referred to as a ring shape) with an open center. Each of the opposing inner walls facing the central opening is provided with a substrate fixing rib (51) (52).

  The internal substrate (4) and the display cover (5) are integrated as follows.

  First, the internal substrate (4) is passed through the central opening of the display cover (5). At this time, the opposing side end of the internal substrate (4) is inserted and held in the substrate fixing ribs (51) (52) on the opposing inner wall of the display cover (5). Further, since the display cover (5) needs to emit the light of the notification indicator (8) to the outside, the display cover (5) is at a position where this is possible, for example, a position substantially parallel to the notification indicator (8). . In this way, the internal substrate (4) and the display cover (5) are assembled together.

  The integrated internal substrate (4) and display cover (5) are positioned between the transmission-side unit body (2) and the reception-side unit body (3) in the unit body (1) as follows. Attached to.

  First, the internal substrate (4) and the display cover (5) are stored in the unit main body (1) so as to be sandwiched between the transmission side unit body (2) and the reception side unit body (3) from both sides thereof. At this time, the transmission-side unit body (2) and the reception-side unit body (3) are provided with a pair of display windows (21) and (31) at appropriate positions, and the display cover (5) has a pair of appropriate positions. Positioning ribs (53) and (54) are provided, and these positioning ribs (53) and (54) are fitted into the corresponding display windows (21) and (31), respectively. The transmission-side unit body (2) and the reception-side unit body (3) are also provided with a pair of insertion guide plates (22) and (32) at the upper and lower positions of the display windows (21) and (31) on the inner wall surface. The display cover (5) is inserted into the insertion guide plates (22) and (32) so that the positioning ribs (53) and (54) can be easily fitted into the display windows (21) and (31). Will be done. Next, a substrate fixing hole (41) is formed in the internal substrate (4), a substrate fixing boss (23) is formed in the transmission side unit body (2), and a substrate pressing boss (33 is formed in the reception side unit body (3). ), And a fixing screw (not shown) is passed from the outside of the receiving-side unit body (3) through the screw insertion hole in the substrate pressing boss (33) to the board fixing hole (41) of the internal board (4). ) And is screwed into a screw hole in the board fixing boss (23) of the transmission side unit body (2), so that the internal board (4) is connected to the transmission side unit body (2) and the reception side unit body (3). And fix with screws. At this time, the board pressing boss (33) also presses the internal board (4) against the board fixing boss (23), thereby realizing more secure mounting and fixing.

  In the crime prevention detection unit assembled as described above, as illustrated in FIG. 2, packing is provided at a portion of the display cover (5) that contacts the transmission side unit body (2) and the reception side unit body (3). A mounting step (55) is provided. In FIG. 2, a pair of upper and lower packing mounting step portions (55) are provided on the entire outer peripheral surface of the display cover (5), and the packing (9) is attached thereto.

  For example, as for the packing (9), a line-shaped or ring-shaped one made of a rubber-based material having water-stopping performance can be considered. When using the line-shaped packing (9), an adhesive is used. When using a ring-shaped packing (9) (see FIG. 2), make the dimensions slightly smaller than the outer diameter of the packing mounting step (55) and use elasticity. Or put it on. In addition, in the case of affixing, the packing junction part at the beginning of affixing shall be a position which does not affect waterproofness.

  The display cover (5) in a state where such a packing (9) is attached to the packing attachment step (55) is integrated with the internal substrate (4) as described above, and the transmission side unit body (2) is further integrated. When the positioning ribs (53) and (54) are fitted into the display windows (21) and (31), the packing (9) is inserted between the receiving unit body (3) and the unit body (1). In contact with the inner wall surfaces of the transmission-side unit body (2) and the reception-side unit body (3), they are crushed. When screw fixing is performed as described above, the screw is further crushed between the inner wall and the packing mounting step portion (55). At this time, the packing (9) is positioned above and below the respective display windows (21) and (31) inside the transmission side unit body (2) and the reception side unit body (3). The space between (5) and the display windows (21) (31) is sealed so that rainwater and the like can be effectively prevented from entering the unit body (1) from the display windows (21) (31). Become.

  As described above, the packing (9) can be attached only by assembling the unit main body (1) without using any special parts or performing a construction process, and the waterproof performance can be sufficiently secured.

[Second Embodiment]
In the above embodiment, the display cover (5) is inserted into the insertion guide plates (22) and (32) at the time of assembly. However, according to these insertion guide plates (22) and (32), the unit main body ( 1) It can be said that a partition structure is constructed in the interior.

  More specifically, in this case, the insertion guide plates (22) and (32) are integrated with the inner wall surface inside the transmission side unit body (2) and the reception side unit body (3). 31) is projected at the vertical position. Further, since the positioning ribs (53) and (54) of the display cover (5) are fitted into the display windows (21) and (31), the insertion guide plates (22) and (32) are positioned with the positioning ribs (53) and (54). It will also be located above and below the display cover (5).

  According to the partition structure by the insertion guide plates (22) and (32), the external light entering from the display windows (21) and (31) can be blocked, and the light from the notification indicator (8) is diffused inside. Can be prevented and condensed on the display windows (21) and (31) to increase the amount of light to the outside, and thus the visibility of the display windows (21) and (31) can be improved.

  In order to improve the visibility of the display windows (21) and (31), it is important not to allow outside light such as sunlight to enter the peripheral area of the notification indicator (8). This is because the light is erased by external light. Therefore, external light is blocked by providing an external light blocking structure with a partition wall. Further, the same partition prevents the light emitted from the notification indicator (8) from diffusing and escaping, and enhances the light collection effect on the display windows (21) and (31). It should be noted that gloss may be imparted to the light reflecting surfaces of the insertion guide plates (22) and (32) as partition walls to further enhance the light collecting effect.

  Therefore, the partition structure functions not only as an insertion guide structure but also as an external light blocking structure and a light collecting structure. By the function as the insertion guide structure, the packing (9) is more reliably crushed, and the assembly workability is further improved. The visibility of the display windows (21) and (31), that is, the light of the notification indicator (8) radiated from the display windows (21) and (31) is improved by the functions as an external light blocking structure and a light collecting structure. The sex can be further improved.

  In addition, it exposes outside from the surface of the positioning ribs (53) and (54) of the display cover (5) fitted into the display windows (21) and (31), that is, the display windows (21) and (31) when assembled as described above. Since the surface is deeper than the surfaces of the transmission-side unit body (2) and the reception-side unit body (3), a roof structure (also called a step structure) that avoids external light is displayed on the display window (21) (31 ) (See FIG. 4). Due to the presence of this roof structure, the display windows (21) and (31) are shaded to reduce direct irradiation of sunlight onto the display cover (5), and the light visibility of the notification indicator (8) is reduced. Can be further improved.

[Third Embodiment]
By using a plurality of security detection units as described above, more specifically, a plurality of security detection units are arranged to face each other at appropriate intervals, and the transmitter (6a) (6b) of one adjacent security detection unit and the other Infrared transmission / reception is performed with the receiver (7a) (7b) of the detection unit for crime prevention, and it is constructed so as to detect that the infrared ray is blocked by an intruder. A device can be realized. At this time, it is of course possible to consider a fence crime prevention device by attaching a crime prevention detection unit to a column such as an external fence and arranging the crime prevention units at appropriate intervals.

  It goes without saying that the invention of this application is not limited to the above-described embodiments, and various aspects are possible in detail. For example, in each of the above embodiments, the transmitter (6a) (6b) and the receiver (7a) (7b) are each provided with a double beam system having two upper and lower stages. It can also be applied to. In addition, the transmitters (6a) (6b) and the receivers (7a) (7b) are arranged back to back, but the present invention can also be applied to a case where the transmitters and receivers are arranged one above the other on only one side. Furthermore, a unit including only a transmitter and only a receiver may be used.

It is the disassembled perspective view which showed one Embodiment of invention of this application. It is a perspective view for demonstrating attachment to the display cover of packing. It is a perspective view for demonstrating assembly with the receiving side body of the display cover integrated with the internal substrate. It is a perspective view for demonstrating the display cover and display window after an assembly. It is the perspective view which showed the transmission side body, the reception side body, and the internal substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Unit body 2 Transmission side unit body 21 Display window 22 Insertion guide plate 23 Substrate fixing boss 3 Reception side unit body 31 Display window 32 Insertion guide plate 33 Substrate pressing boss 4 Internal substrate 41 Substrate fixing hole 5 Display cover 51, 52 Substrate fixing rib 53, 54 Positioning rib 55 Packing mounting step 6a, 6b Transmitter 7a, 7b Receiver 8 Notification indicator 9 Packing

Claims (5)

The light from the notification indicator is provided in the unit body in the unit body formed by combining the unit body on one side and the unit bodies on the opposite side with the internal substrate on which the notification indicator is mounted together with the beam sensor. A display cover that emits light from the display window is sandwiched between the unit bodies.
On the part of the display cover that comes into contact with the unit body, there is a step for mounting packing.
When the display cover is sandwiched between the unit bodies, the packing attached to the packing mounting step is in contact with the unit body and crushed so that the waterproof performance between the display cover and the display window is ensured. Security detection unit characterized by that. 2. The security detection unit according to claim 1, wherein a partition structure is provided inside the unit body and located above and below the display cover and the display window.   The security detection unit according to claim 2, wherein the partition structure also functions as an insertion guide structure for a display cover when the display cover is sandwiched between unit bodies.   The security detection unit according to claim 2 or 3, wherein the partition structure also functions as an external light blocking structure that blocks external light entering from the display window.   The security detection unit according to any one of claims 2 to 4, wherein the partition structure also functions as a light collecting structure for collecting light from the notification indicator on the display window.

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