JP2007079873A - Disaster and crime prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disaster and crime prevention device which enables the miniaturization of mounting parts or reduce constraints for designing sensor body. <P>SOLUTION: The disaster and crime prevention device comprises a device body 10 for housing a circuit for disaster or crime prevention and a mounting section 30 for installing the device body 10 on an installation face, and the mounting section 30 comprises a main plate 31 which is integrally or separately set to the device body 10, and a sub plate 32 which can be fixed on the installation face and can be mounted on a plurality of the positions of the main plate 31. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disaster prevention / crime prevention device that detects a fire or an intruder, and more particularly to a disaster prevention / crime prevention device having a feature in a fixing structure with respect to its installation surface.

  2. Description of the Related Art Conventionally, disaster prevention crime prevention devices that are installed on wall surfaces of ordinary houses and detect fires and intruders have been proposed. For example, a crime prevention device for intruder detection is configured to include an infrared detection unit inside a housing, and infrared rays emitted from the intruder are detected by the infrared detection unit, and the detection amount is a predetermined amount or more. In some cases, it is determined that an intruder has been detected, and a message is output to a predetermined device.

  When attaching such disaster prevention and security equipment to the installation surface, the angle for adjusting the installation angle of the disaster prevention and security equipment so that the detection area of the disaster prevention and security equipment can be directed to the desired area of the wide monitoring area An adjustment mechanism may be provided. For example, in Japanese Patent Application Laid-Open No. 8-16938, in the structure in which the sensor main body is attached to the installation surface, the convex portion of the substantially cylindrical sensor main body is rotatably fitted in the hole of the attachment base. The point which can adjust an attachment position angle in the predetermined range is disclosed (refer patent document 1; paragraph 0029, FIG. 1 etc.).

JP-A-8-16938

  However, in the conventional mounting structure, as described above, the mounting base and the sensor main body are simply rotated at one predetermined mounting position, so that the rotation angle of the sensor main body with respect to the mounting base is increased. For this purpose, the mounting base is increased in size so as to extend to the upper and lower surfaces of the sensor body, thereby securing a rotation space for the sensor body, or making the sensor body cylindrical to improve its rotation performance. There was a need. For this reason, conventionally, there have been problems such as an increase in the size of attachment parts and a restriction on the detector body in terms of design.

  The present invention has been made in view of the above, and provides a disaster prevention crime prevention device that can reduce the size of a mounting part or can reduce restrictions on the design of a sensor body. With the goal.

  In order to solve the above-described problems and achieve the object, the disaster prevention crime prevention device according to claim 1 is a device main body for housing a disaster prevention or crime prevention circuit, and for installing the device main body on an installation surface. An attachment means, the attachment means being fixed to the installation surface, the first attachment means provided integrally with or separately from the device body, and a plurality of attachment means in the first attachment means And a second attachment means that can be attached to the position.

  Moreover, the disaster prevention crime prevention device according to claim 2 is the disaster prevention crime prevention device according to claim 1, wherein the first attachment means is formed as a first plate fixed to the device main body, and the second The attachment means is formed as a second plate that can be fixed to the first plate and the installation surface.

  Moreover, the disaster prevention crime prevention device according to claim 3 is the disaster prevention crime prevention device according to claim 2, wherein the second plate is rotatable to at least one position of the plurality of positions on the first plate. A recess and a locking piece locked to the recess are provided around the rotation center of the second plate with respect to the first plate, and either of the recess and the locking piece is provided. A plurality of ones are provided, and either one of the plurality of recesses or locking pieces is selectively lockable with respect to the other.

  Moreover, the disaster prevention crime prevention device according to claim 4 is the disaster prevention crime prevention device according to claim 1, wherein the first attachment means is formed integrally with the device body, and the second attachment means is the It is characterized in that it is formed as a second plate that can be fixed to the first attachment means and the installation surface of the apparatus body.

  Moreover, the disaster prevention crime prevention device according to claim 5 is the disaster prevention crime prevention device according to claim 4, wherein the second plate is rotatably attached to at least one of the plurality of positions in the device main body. And a recess and a locking piece locked to the recess are provided around the rotation center of the second plate with respect to the device main body, and a plurality of either the recess or the locking piece is provided. In addition, one of the plurality of recessed portions or locking pieces is selectively lockable with respect to the other.

  Moreover, the disaster prevention crime prevention device according to claim 6 is a device main body that accommodates a disaster prevention or crime prevention circuit, an attachment means for installing the device main body on an installation surface, and the device main body or the attachment means. A cover means for covering the attachment portion between the device main body and the attachment means; and a cover detection means for detecting an attachment state of the cover means with respect to the device main body or the attachment means. Features.

  Moreover, the disaster prevention crime prevention device according to claim 7 is the disaster prevention crime prevention device according to claim 1 and claim 6, wherein the cover means covers the plurality of positions in the first attachment means. Features.

  Moreover, the disaster prevention crime prevention device according to claim 8 is the disaster prevention crime prevention device according to claim 6 or 7, wherein the device main body has a physical quantity detection means for detecting a predetermined physical quantity, and the cover means It is a disturbance factor shielding means for shielding a disturbance factor for detection of the physical quantity by the physical quantity detection means.

  According to this invention, by changing the attachment position of the second attachment means relative to the first attachment means, the attachment position and the attachment angle of the disaster prevention crime prevention equipment with respect to the installation surface can be easily changed, and the attachment means is enlarged. In addition, disaster prevention equipment can be installed in various installation environments. Further, since it is not necessary to rotate the device main body with respect to the attachment means, it is not necessary to form the device main body into a cylindrical shape as in the prior art, and the degree of freedom in designing the device main body is improved.

  Moreover, according to this invention, the attachment position and attachment angle of the disaster prevention crime prevention apparatus with respect to an installation surface can be easily changed by changing the attachment position and attachment angle of the 2nd plate with respect to a 1st plate.

  Further, according to the present invention, by selectively locking the locking pieces in the plurality of recesses, the mounting angle of the second plate relative to the first plate can be changed in stages, and the mounting angle can be further adjusted. It can be done easily and reliably.

  Moreover, according to this invention, the attachment angle of the disaster prevention crime prevention apparatus with respect to an installation surface can be easily changed by changing the attachment position and attachment angle of the 1st plate with respect to an apparatus main body.

  In addition, according to the present invention, by selectively locking the locking pieces in the plurality of recesses, the mounting angle of the first plate with respect to the device body can be changed in stages, and the mounting angle can be adjusted more easily and easily. It can be done reliably.

  Moreover, according to this invention, when the cover means is removed, it is possible to notify the abnormality of the attachment state. Therefore, at the time when an abnormality in the attachment state is detected (when the cover means is removed), the basic function of the device main body has not yet been impaired (because the device main body casing has not been opened), so the device main body It is possible to detect an abnormality in the attachment state before the function of the device is impaired.

  Moreover, according to this invention, since the several location is covered with the cover means, the abnormality of an attachment state is detectable with the same structure, without being influenced by the attachment position.

  In addition, according to the present invention, since the cover means for shielding the disturbance is diverted to the detection of the removal, a special configuration for the detection of the removal can be omitted, the configuration of the disaster prevention crime prevention equipment can be simplified and the manufacturing cost can be reduced. Can be reduced.

  Hereinafter, embodiments of a disaster prevention and crime prevention device according to the present invention will be described in detail with reference to the accompanying drawings. [I] First, the basic concept common to each embodiment was explained, then [II] the specific contents of each embodiment were explained, and [III] Finally, modifications to each embodiment were explained. To do. However, the present invention is not limited to each embodiment.

[I] Basic concept common to the embodiments First, the basic concept common to the embodiments will be described. The disaster prevention crime prevention device according to each embodiment is a disaster prevention crime prevention device that is installed on an arbitrary installation surface and performs a predetermined function for disaster prevention or crime prevention. As an installation surface, an outdoor wall surface will be described below as an example. However, the installation surface is not limited to an outdoor surface or a wall surface, and can be attached to an arbitrary installation surface. The specific contents of the basic disaster prevention function or fire prevention function of the disaster prevention and security device are arbitrary, and the disaster prevention and security device includes, for example, a flame detector, a human body sensor, a human body light, a security camera, and the like. In the following description, a case where the disaster prevention and security device is a human body sensor will be described.

  One of the features of this disaster prevention and security device is that it is possible to attach the disaster prevention and security device with an inclination with respect to the installation surface by using a relatively small mounting part. For this reason, the attachment means is composed of a first attachment means provided in the apparatus main body and a second attachment means that can be fixed to the installation surface, and the second attachment means is provided at a plurality of positions in the first attachment means. It is possible to attach. In other words, instead of increasing the size of the mounting parts as in the past, the mounting position and mounting angle of the disaster prevention crime prevention equipment on the installation surface are changed by changing the mounting position of the second mounting means relative to the first mounting means. Is possible.

  Moreover, one of the other characteristics of this disaster prevention crime prevention device is to detect that the disaster prevention crime prevention device has been illegally removed from the installation surface. This removal detection mechanism is generally achieved by covering the attachment means for installing the main body of the disaster prevention crime prevention equipment on the installation surface with the cover means and providing the cover detection means for detecting the attachment state of the cover means. Is done. That is, in order to remove the device body illegally, it is necessary to access the attachment means, and thus it is necessary to remove the cover covering the attachment means. However, when this cover is removed, this is detected by the cover detection means, and an alarm signal or the like is output. For this reason, when the cover is removed, that is, when there is a sign of unauthorized removal, the abnormality can be detected.At this point, the alarm can be raised and the intruder can be removed. This can be prevented in advance, and the function of the device body can be prevented from being impaired.

[II] Specific contents of each embodiment [Embodiment 1]
Next, specific contents of each embodiment according to the present invention will be described. First, the first embodiment will be described. Here, the outline of the configuration of the human body sensor, the mounting structure for mounting the human body sensor on the wall surface, the angle adjusting mechanism for adjusting the mounting angle of the human body sensor with respect to the wall surface, and the human body sensor being illegally removed from the wall surface The detection mechanism for detecting the will be sequentially described. 1 is an overall perspective view of the human body sensor according to the first embodiment as viewed from the front side, FIG. 2 is an overall perspective view of the human body sensor as viewed from the back side, and FIG. 3 is a view from the human body sensor of FIG. FIG. 4 is an exploded perspective view with the main part of the human body sensor removed, with the cover removed.

(Outline of the configuration of the human body sensor 1)
This human body sensor 1 is a disaster prevention crime prevention device for detecting the presence of a human body in a monitoring area set outdoors, and includes a device main body 10, a main body cover 20, and an attachment portion 30 as shown in the figure. Has been.

(Outline of the configuration of the human body sensor 1-the device body 10)
Among these, the apparatus main body 10 is configured by housing an electronic circuit (not shown) or the like for performing a human body detection function in the housing 11. This electronic circuit for detecting a human body generally includes an infrared sensor (not shown), and infrared rays emitted from an intruder are detected by the infrared sensor. When the detected amount exceeds a predetermined amount, Then, it is determined that an intruder has been detected, and a report is output to a predetermined device. Here, the infrared sensor corresponds to physical quantity detection means for detecting a predetermined physical quantity (here, the amount of infrared rays) in the claims. However, the internal configuration of the housing 11 including this electronic circuit can be configured in the same manner as a conventional human body sensor unless otherwise specified, and thus the description thereof is omitted.

(Outline of configuration of human body sensor 1-main body cover 20)
Moreover, the main body cover 20 is attached to the apparatus main body 10, Comprising: The attachment location of the apparatus main body 10 and the attaching part 30 is covered, and it respond | corresponds to the cover means in a claim. FIG. 5 shows an enlarged perspective view of the main body cover 20. The main body cover 20 includes a side surface portion 21 that covers an upper portion of the side surface of the device main body 10 and an upper surface portion 22 that extends from the upper surface of the device main body 10 toward the front surface side. . Then, the upper surface portion 22 covers the upper surface of the device main body 10 almost completely, so that the attachment points between the device main body 10 and a main plate 31 described later are almost completely covered.

  Moreover, the main body cover 20 shields the disturbance factor with respect to the infrared detection by the infrared sensor accommodated in the apparatus main body 10, and respond | corresponds to the disturbance factor shielding means in a claim. That is, as shown in FIG. 1, the upper surface portion 22 extends to the front side of the device body 10, thereby shielding sunlight (disturbance light) and the like incident from above and detecting infrared rays emitted from the human body. Improve accuracy.

  Here, as shown in FIG. 4, a rectangular mounting protrusion 12 protruding laterally is formed on the upper part of the side surface of the device main body 10. On the other hand, as shown in FIGS. 4 to 5, the mounting projection 12 is removably inserted into the inner surface of the side surface 21 of the main body cover 20 at a position and shape corresponding to the mounting projection 12. A mounting groove 23 is formed. Accordingly, by pressing the main body cover 20 against the device main body 10 from the front side, the mounting protrusion 12 is inserted into the mounting groove 23. As a result, the main body cover 20 is detachably attached to the device main body 10. It is done.

  Further, as shown in FIG. 1, a ventilation space 24 is formed between the main body cover 20 and the device main body 10. That is, the upper surface portion 22 of the main body cover 20 is formed at a position where there is a gap without contacting the upper surface of the device main body 10, and the gas fluidity between the main body cover 20 and the device main body 10 is increased. The heat generated from the device main body 10 can be released to the outside through the space 24. Further, even when the body cover 20 is heated by direct sunlight hitting the human body sensor 1, this heat can be radiated through the space portion 24, and the heat can be prevented from being conducted to the device body 10. In addition, although the specific material and formation method of the main body cover 20 comprised in this way are arbitrary, it can form by the shaping | molding which used the synthetic resin, for example.

(Outline of the configuration of the human body sensor 1-mounting portion 30)
Moreover, the attachment part 30 is for installing the apparatus main body 10 in a wall surface, and respond | corresponds to the attachment means in a claim. As shown in FIGS. 2 to 4, the attachment portion 30 includes a main plate 31 and a sub plate 32. FIG. 6 is an enlarged perspective view of the apparatus main body 10, FIG. 7 is an enlarged perspective view of the main plate 31, and FIG. 8 is an enlarged perspective view of the sub plate 32.

  Among these, as shown in FIG. 7, the main plate 31 is fixed to the apparatus main body 10, and corresponds to the first attachment means and the first plate in the claims. The main plate 31 has a main surface portion 33 having substantially the same width and height as the casing 11 of the device main body 10, and is bent so as to be substantially orthogonal to the main surface portion 33 at the upper and lower ends of the main surface portion 33. And a pair of upper and lower rotation bases 36 to 38 that are bent so as to be substantially orthogonal to the main surface portion 33 at a position slightly closer to the center of the main surface portion 33. Are integrated with each other. The rotation bases 36 to 38 are formed at positions and shapes substantially corresponding to the later-described recesses 14 to 16 of the device main body 10, whereby the rotation bases 36 to 38 are inserted into the recesses 14 to 16. Can.

  In FIG. 8, the sub plate 32 fixes the main plate 31 and is fixed to the wall surface, and corresponds to the second attachment means and the second plate in the claims. The sub-plate 32 is formed so as to be slightly narrower and shorter than the casing 11 of the device body 10 and to be bent so as to be substantially orthogonal to the main surface 39 at the upper and lower ends of the main surface 39. The pair of rotation bases 40 are integrally provided with each other. Here, the rotation base 40 is formed at a position and shape substantially corresponding to the rotation bases 36 to 38 of the main plate 31, and is inserted into any one of the rotation bases 36 to 38 from the back side. Can. Thus, the attachment position of the sub plate 32 with respect to the main plate 31 can be selectively changed to one of three different positions in the left-right direction. In the following, among these three arrangement positions, the substantially central position in the left-right direction is the “center mounting position”, the right side position when viewed from the front side of the device main body 10 is the “right mounting position”, and the front side of the device main body 10 A position on the left side when viewed from the side is referred to as a “left mounting position”. In addition, although the specific material and formation method of these main plates 31 and subplates 32 are arbitrary, they can be formed by, for example, press working using a light alloy.

(Mounting structure)
Next, the attachment structure for attaching the human body sensor 1 to the wall surface will be described more specifically. As shown in FIG. 7, each of the upper and lower locking joints 34 of the main plate 31 is formed with a locking claw 34 a that protrudes toward the upper and lower surfaces of the casing 11 of the device body 10. On the other hand, as shown in FIG. 6, a locking piece 11 a to which a locking claw 34 a can be detachably locked is integrally formed on each of the upper and lower surfaces of the housing 11 of the device body 10. Then, as shown in FIG. 3, when the main plate 31 is pressed against the device main body 10 from the back side of the device main body 10 and the locking joint 34 is brought into contact with the upper and lower surfaces of the housing 11, the locking claw 34a. The main plate 31 can be engaged with and fixed to the apparatus main body 10 by engaging with the engaging piece 11a.

  As shown in FIG. 6, three pairs of upper and lower concave portions 14 to 16 are formed on the back surface of the casing 11 of the device main body 10. Therefore, as shown in FIGS. 2 to 3, by pressing the main plate 31 against the device main body 10 from the back side of the device main body 10, the three sets of rotation bases 36 to 38 are arranged inside the recesses 14 to 16, respectively. Is done.

  Further, as described above, the rotation base 40 of the sub plate 32 is formed at a position and shape substantially corresponding to the rotation bases 36 to 38 of the main plate 31. By inserting from the back side, the rotation base 40 of the sub-plate 32 can be superposed on the rotation bases 36 to 38 of the main plate 31. Here, as shown in FIG. 7, locking claws 36 a to 38 a that protrude downward are formed on the three rotation bases 36 to 38 on the lower side of the main plate 31. On the other hand, as shown in FIG. 8, the lower rotation base 40 of the sub-plate 32 is formed with a locking hole 40a at a position and shape corresponding to the locking claws 36a to 38a. Therefore, when the sub plate 32 is superposed on the main plate 31, first, the sub plate 32 is brought close to the main plate 31 from a slightly lower side, and any one of the locking claws 36a to 38a is inserted into the locking hole 40a. The rotation base 40 of the sub-plate 32 can be superposed on the rotation bases 36 to 38 of the main plate 31. In this state, the insertion of the locking hole 40a and the locking claws 36a to 38a makes it difficult for the sub plate 32 to easily fall off the main plate 31, and temporarily fixes the sub plate 32 to the main plate 31. be able to.

  Further, as shown in FIG. 6, screw holes 14 a to 16 a through which the attachment screws 17 are inserted are formed in the vicinity of the recesses 14 to 16 in the housing 11 of the device main body 10. Further, as shown in FIGS. 7 to 8, the three rotation bases 36 to 38 on the upper side of the main plate 31 and the rotation base 40 on the upper side of the sub plate 32 have positions corresponding to the screw holes 14 a to 16 a. In addition, the screw holes 36b to 38b and the screw holes 40b are drilled. Then, the main plate 31 and the sub plate 32 are superposed. Then, in a state where the rotation bases 36 to 38 and the rotation base 40 are inserted into the recesses 14 to 16 of the apparatus main body 10, the mounting screws 17 shown in FIG. As shown in FIGS. 2 to 3, the sub-plate 32 is inserted into the hole 40 b and the screw holes 36 b to 38 b of the rotation bases 36 to 38 sequentially and further screwed into the screw holes 14 a to 16 a of the device body 10. Screws can be fixed to the main plate 31 (and the device main body 10).

  As shown in FIG. 7, the main surface portion 33 of the main plate 31 is formed with a pair of upper and lower screw holes 33a at each of the center attachment position, the right attachment position, and the left attachment position. Further, as shown in FIG. 8, screw holes 39 a are formed in the main surface portion 39 of the sub plate 32 at positions and shapes corresponding to the screw holes 33 a of the main plate 31. Therefore, in a state where the main plate 31 and the sub plate 32 are overlapped with each other, these are brought into contact with the wall surface from the sub plate 32, and the mounting screw 19 shown in FIG. The main plate 31 and the sub-plate 32 (and the device main body 10) can be firmly fixed to the wall surface by sequentially inserting them into the screw holes 39a and screwing them into the wall surfaces.

  The mounting operation using the mounting structure configured as described above is actually performed according to the following procedure. First, the locking claws 36a to 38a of the lower rotation bases 36 to 38 of the main plate 31 are inserted into the locking holes 40a of the lower rotation base 40 of the sub plate 32, so that the main plate 31 and The sub-plates 32 are temporarily fixed to each other, and these are brought into contact with the wall surface and fixed with the mounting screws 19. Next, by pressing the device main body 10 against the main plate 31, the locking claw 34 a of the main plate 31 is locked to the locking piece 11 a of the device main body 10, and the device main body 10 is locked and fixed to the main plate 31. Let Thereafter, the mounting screw 17 is sequentially inserted from above into the screw holes 40b of the rotation base 40 and the screw holes 36b to 38b of the rotation bases 36 to 38, and further screwed into the screw holes 14a to 16a of the device body 10. Thus, the main plate 31, the sub plate 32, and the device main body 10 are fixed to each other. Finally, the main body cover 20 is attached to the device main body 10 by pressing the main body cover 20 against the device main body 10 from the front side. This completes the installation.

  As shown in FIG. 8, the side portion 41 of the sub-plate 32 is bent toward the main plate 31. Therefore, as shown in FIG. 2, when the sub plate 32 is in contact with the main plate 31, there is a space 46 between the main surface portion 39 of the sub plate 32 and the main surface portion 33 of the main plate 31. It is formed. This space portion 46 is formed to attach the human body sensor 1 to an arc-shaped installation surface such as a utility pole (not shown). A not-shown attachment portion (not shown) of the side portion 41 is attached to a long belt-like attachment band (not shown). The human body sensor 1 can be easily and reliably fixed to the arcuate installation surface by being inserted through the space portion 46 and wound around a power pole or the like.

(Angle adjustment mechanism)
Next, an angle adjustment mechanism for adjusting the attachment angle of the human body sensor 1 with respect to the wall surface will be described. 9 is a plan view of the human body sensor 1 in a state where the sub plate 32 is fixed at the central mounting position, FIG. 10 is a plan view of the human body sensor 1 in a state where the sub plate 32 is fixed at the right mounting position, and FIG. 10 is a plan view of the human body sensor 1 in a state where the sub plate 32 is fixed at the right attachment position and the attachment angle is changed (however, the main body cover 20 is omitted in FIGS. 9 to 10). ).

  Among these, as shown in FIG. 9, when the sub plate 32 is fixed at the center mounting position, the sub plate 32 is substantially parallel to the main surface portion 33 of the main plate 31, so Can be fixed in parallel.

  On the other hand, as shown in FIG. 10, when the sub-plate 32 is fixed at the right mounting position, the sub-plate 32 can be rotated about the mounting screw 17 (screw hole 40b) as a rotation center. Therefore, the main surface portion 39 of the sub-plate 32 is substantially orthogonal to the main surface portion 33 of the main plate 31 (α1 = 90 degrees in the drawing), and as a result, the human body sensor 1 is approximately orthogonal to the wall surface W. Can be fixed. In addition, although illustration is abbreviate | omitted, also when the subplate 32 is fixed to the left attachment position, the human body sensor 1 can be fixed so that it may be substantially orthogonal to the wall surface W similarly.

  Further, when the sub plate 32 is fixed to the right mounting position in this way, the mounting angle of the human body sensor 1 with respect to the wall surface W is not limited to the orthogonal mounting angle of FIG. An arbitrary attachment angle can be taken within a range in which the screw hole 40b) can be rotated around the rotation center. For example, as shown in FIG. 11, the main surface portion 39 of the sub-plate 32 is made non-orthogonal and non-parallel to the main surface portion 33 of the main plate 31 (α2> 90 degrees in the figure), and the human body sensor 1 is placed on the wall surface W. Can be fixed non-orthogonally and non-parallel. In addition, although illustration is abbreviate | omitted, also when the subplate 32 is fixed to the left attachment position, the human body sensor 1 can be fixed non-orthogonally and non-parallel to the wall surface W similarly.

  Here, as shown in FIGS. 10 to 11, when the human body sensor 1 is fixed non-parallel to the wall surface W, in order to screw the mounting screw 19 into the wall surface, the mounting screw 19 is used as the main plate 31. May need to be inserted diagonally. For this reason, as shown in FIG. 7, the screw holes 33a located on the left and right of the screw holes 33a of the main plate 31 are formed in a horizontally long long hole shape and the end thereof is opened, whereby the main plate 31 is opened. The permissible range of the insertion angle of the mounting screw 19 with respect to is increased.

  Further, in such an attachment structure, further contrivances are provided to enable easy adjustment of the attachment angle of the human body sensor 1 with respect to the wall surface. In FIG. 12, the principal part expansion perspective view of the main plate 31 and the subplate 32 is shown. As shown in FIG. 12, a locking claw 40 c that protrudes downward is integrally formed at the tip of the rotation base 40 of the sub-plate 32. On the other hand, at the tips of the rotation bases 36 to 38 of the main plate 31, recesses 36 c to 38 c to which the locking claws 40 c of the sub plate 32 can be locked are formed. More specifically, only one recess 37c is formed in the rotation base 37 at the center mounting position. The sub-plate 32 can be positioned substantially parallel to the main plate 31 by engaging the engaging claw 40c with the recess 37c. A plurality of recesses 36c and 38c are formed in the rotation base 36 at the right attachment position and the rotation base 38 at the left attachment position, respectively. The sub-plate 32 is positioned non-orthogonally with respect to the main plate 31 by selectively locking the locking claw 40c in any one of the plurality of recesses 36c, 38c. Therefore, the attachment angle of the sub plate 32 with respect to the main plate 31 can be adjusted easily and reliably. In particular, by selectively selecting the recesses 36c and 38c for locking the locking claw 40c, the mounting angle can be changed in stages, and the mounting angle becomes clearer than in the case of simply changing in a stepless manner. The angle can be adjusted more easily and reliably.

(Removal detection mechanism)
Next, a detection mechanism that detects that the human body sensor 1 has been illegally removed from the wall surface will be described. As shown in FIG. 5, a magnet 25 is fixed to the inner surface of the main body cover 20. On the other hand, a tamper switch circuit (not shown) is provided inside the device body 10. This tamper switch circuit detects the attachment state of the main body cover 20 with respect to the apparatus main body 10, and corresponds to the cover detection means in the claims. Specifically, the tamper switch circuit is configured to include a reed switch that can be opened and closed by the magnetic force of the magnet 25 of the main body cover 20, and the mounting state is normal only when the reed switch is closed by the magnetic force. A signal to the effect is output. This signal is monitored at a predetermined interval by an electronic circuit (not shown) housed in the device main body 10 and outputs an abnormal signal to a predetermined external device when the signal stops.

  Here, as shown in FIG. 2, the upper surface portion 22 of the main body cover 20 substantially completely covers the upper surface of the device main body 10 as described above. The attachment location of the plate 31 with the locking claw 34a is almost completely covered. Furthermore, the main body cover 20 extends toward the apparatus main body 10, and includes three overlapping positions of the rotation bases 36 to 38 of the main plate 31 and the rotation base 40 of the sub plate 32, and the overlapping positions. The attachment screw 17 screwed in is substantially covered from above. For this reason, in order to remove the apparatus main body 10 from the wall surface, in order to expose the attachment part of the apparatus main body 10 and the main plate 31, or to expose the overlapping part of the rotation bases 36 to 38 and the rotation base 40 Therefore, it is necessary to remove the main body cover 20 from the device main body 10. However, when the main body cover 20 is removed in this way, the reed switch is opened when the magnet 25 is separated from the device main body 10, and an abnormal signal is output. Therefore, when the main body cover 20 is removed, an abnormality in the attachment state can be notified.

  Here, in this detection mechanism, the removal of the main body cover 20 is detected, and at the time when an abnormality in the attachment state is detected (when the main body cover 20 is removed), the basic function of the device main body 10 is still present. Since it is not damaged (because the casing 11 of the device main body 10 has not yet been opened), an abnormality in its attachment state can be detected before the function of the device main body 10 is impaired.

  In particular, the main body cover 20 covers all the attachment positions of the center attachment position, the right attachment position, and the left attachment position from above. Therefore, in any of these three attachment positions, the attachment location of the main plate 31 or the sub plate 32 and the device main body 10 is covered with the main body cover 20, so that it depends on the attachment position. Without abnormality, it is possible to detect an abnormality in the mounting state with the same structure.

  Furthermore, as described above, the main body cover 20 functions as a shielding unit that shields disturbances to infrared detection, and is not provided specifically for detecting the attachment state. In this way, by using the disturbance shielding main body cover 20 for removal detection, a special configuration for detection of removal can be omitted, the configuration of the human body sensor 1 can be simplified, and the manufacturing cost thereof can be reduced.

  As described above, according to the first embodiment, the attachment angle of the human body sensor 1 with respect to the wall surface can be easily changed by changing the attachment position and attachment angle of the sub plate 32 with respect to the main plate 31. The human body sensor 1 can be attached to various installation environments without increasing the size. Since it is not necessary to rotate the apparatus main body 10 with respect to the main plate 31, it is not necessary to form the apparatus main body 10 in a cylindrical shape as in the prior art, and the degree of freedom in designing the apparatus main body 10 is improved. In particular, by selectively locking the locking claws 40c in the plurality of recesses 36c to 38c, the mounting angle of the human body sensor 1 can be changed in stages, and the mounting angle of the human body sensor 1 can be adjusted more easily and reliably. It can be carried out. Moreover, since the removal of the main body cover 20 is detected, the abnormality of the attachment state can be detected before the function of the apparatus main body 10 is impaired. In particular, it is possible to detect an abnormality in the attachment state with the same structure without depending on the attachment position. Furthermore, by using the disturbance shielding main body cover 20 for detecting the removal of the main body cover 20, a special configuration for detecting the removal can be omitted, the configuration of the human body sensor 1 can be simplified, and the manufacturing cost can be reduced. .

[Embodiment 2]
Next, the specific content of Embodiment 2 which concerns on this invention is demonstrated. The second embodiment is a form in which the function of the main plate 31 of the first embodiment is integrally provided in the device main body as a structure of the attachment portion 30 for attaching the human body sensor to the wall surface. 13 is an overall perspective view of the human body sensor according to the second embodiment when viewed from the back side, FIG. 14 is an exploded perspective view of the human body sensor of FIG. 13, and FIG. 15 is a view of the human body sensor of FIG. It is a disassembled perspective view (a main body cover is abbreviate | omitted and shown). The configuration of the second embodiment is substantially the same as the configuration of the first embodiment except where otherwise specified, and the same configuration as that of the first embodiment is used in the first embodiment. The same reference numerals are attached as necessary, and the description thereof is omitted.

(Outline of the configuration of the human body sensor 2)
As shown in the figure, the human body sensor 2 includes a device main body 50, a main body cover 20, and a mounting portion 60. Of these, the device main body 50 is configured in substantially the same manner as in the first embodiment except for the configuration of the back surface thereof. Moreover, the attachment part 60 is comprised only with the subplate 61, and the main plate 31 of Embodiment 1 is abbreviate | omitted.

(Mounting structure)
Here, the main plate 31 of the first embodiment is integrally provided on the back surface of the device main body 50. That is, three pairs of upper and lower rotation bases 51 to 53 and recesses 54 to 56 are integrally formed on the upper portion of the back surface, and the rotation base 62 of the sub-plate 61 is inserted into the recesses 54 to 56. The sub plate 61 can be screwed to the device main body 50 by sequentially screwing the attachment screw 17 into the screw hole 62b and the screw holes 51b to 53b from above. Locking protrusions 54 a to 56 a are formed in the lower part of the back surface of the device main body 50, and the locking protrusions 54 a to 56 a are inserted into the locking holes 62 a of the lower rotation base 62 of the sub plate 61. Thus, the sub plate 61 can be temporarily fixed to the device main body 50.

  Note that the mounting operation using the mounting structure configured as described above can actually be performed by the following procedure. First, the sub plate 61 is brought into contact with the wall surface, the mounting screw 19 is inserted into the screw hole 62c formed in the sub plate 61 and screwed into the wall surface, thereby fixing the sub plate 61 to the wall surface. Then, the device main body 50 and the sub plate 61 are temporarily fixed to each other by inserting the locking protrusions 54 a to 56 a of the device main body 50 into the locking holes 62 a of the sub plate 61. Next, the mounting plate 17 is inserted through the screw hole 62b of the rotation base 61 and the screw holes 51b to 53b of the rotation bases 51 to 53 from above to be screwed in, so that the sub plate 61 and the device main body 50 are mutually connected. To fix. Finally, the main body cover 20 is attached to the device main body 50 by pressing the main body cover 20 against the device main body 50 from the front side. This completes the installation.

(Angle adjustment mechanism)
Also in the second embodiment, when the sub plate 61 is fixed at the center mounting position, the sub plate 61 is substantially parallel to the back surface of the device main body 50, so the human body sensor 2 is fixed substantially parallel to the wall surface. it can. Further, when the sub plate 61 is fixed at the right mounting position, the sub plate 61 can be rotated about the mounting screw 17 (or the screw hole 62b), so that the human body sensor 2 is not in contact with the wall surface. Can be fixed in parallel.

  Here, in the case of fixing in an orthogonal shape, the attachment screw 19 may interfere with the back surface of the device main body 50. In order to prevent this, as shown in FIG. 14, a recess 58 that can accommodate the head of the mounting screw 19 is formed on the back surface of the device main body 50. Moreover, when fixing in non-parallel form, it may be necessary to insert the attachment screw 19 diagonally with respect to the back surface of the apparatus main body 50. For this reason, the device main body 50 is formed with a horizontally long slot-like recess 59, and the end of the recess 59 is opened so that the insertion angle of the mounting screw 19 with respect to the device main body 50 can be reduced. The allowable range has been expanded.

  As shown in FIG. 13, an engaging piece 62 c that protrudes toward the rotation bases 51 to 53 of the device main body 50 is integrally formed on the upper surface of the rotation base 62 of the sub-plate 61. On the other hand, concave portions 51c to 53c to which the locking pieces 62c of the sub plate 61 can be locked are formed at the tips of the rotation bases 51 to 53 of the device main body 50. And the attachment angle of the subplate 61 with respect to the apparatus main body 50 can be adjusted easily and reliably by latching the latching piece 62c to the recessed parts 51c-53c.

  Thus, according to the second embodiment, in addition to the same effects as those of the first embodiment, the main plate can be omitted, so that the human body sensor 2 can be configured more simply. However, in the configuration of the second embodiment, since the shape of the device main body 50 is complicated, it may be difficult to form the device main body 50. Therefore, the structure of the first embodiment is preferable in this respect.

[III] Modifications to Embodiments Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention are within the scope of the technical idea of each invention described in the claims. Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved. For example, even when the attachment means of the disaster prevention / crime prevention equipment cannot be reduced in size compared to the conventional case, the problem of the present application is solved as long as a different attachment structure is provided.

(Installation structure and angle adjustment mechanism)
In the first embodiment, both the main plate 31 and the sub plate 32 are fixed to the installation surface with the mounting screws 19. However, when the main plate 31 and the sub plate 32 are fixed to each other, the sub plate 32. May be attached to the installation surface. Further, the position and number of the sub plate 32 attached to the main plate 31 and the device main body 10 can be arbitrarily changed. Further, with respect to the main plate 31 of the first embodiment, the pair of locking joints 34 are formed so as to extend up and down of the device main body 10. 17 can be secured sufficiently, the locking joint 34 can be omitted, and the main plate 31 can be formed shorter than the apparatus main body 10 in the vertical direction. In this case, the downsizing is more remarkable than the conventional attachment parts. In addition, in the angle adjustment mechanism described in the first embodiment or the second embodiment, the mounting angle in the plane can be adjusted. However, by applying the same structure, the mounting angle in the vertical plane can be adjusted. Also good. For example, in the first embodiment, the recesses 14 to 16 are formed on the side surface of the device main body 10, and the rotation bases 36 to 38 and 40 are formed on the side surfaces of the main plate 31 and the sub plate 32. Alternatively, in the second embodiment, the rotation bases 51 to 53 are formed on the side surface of the device main body 50, and the rotation base 62 is formed on the side surface of the sub plate 61. In this case, the attachment angle of the apparatus main bodies 10 and 50 with respect to the wall surface can be adjusted upward or downward.

(Main body cover 20 and removal detection mechanism)
The shape and attachment position of the main body cover 20 can be arbitrarily changed. For example, the main body cover 20 may be formed of a transparent member, and the main body cover 20 may cover the entire front surface of the device main body. Or you may cover only the attachment location of the apparatus main bodies 10 and 50 and the attachment part 30. FIG. The main body cover 20 does not necessarily have to be attached to the device main bodies 10 and 50. For example, the main body cover 20 is formed so as to extend from the main plate 31 to the upper surface of the device main body 10, and is fixed to the main plate 31. May be. In this case, the tamper switch circuit of the device body detects that the body cover 20 has been removed from the main plate 31 and outputs an abnormal signal.

  The disaster prevention crime prevention device according to the present invention is useful for providing various functions for disaster prevention and crime prevention when installed outdoors, etc. It is useful for improving its reliability by preventing unauthorized removal from the surface.

It is the whole perspective view which looked at the human body sensor concerning Embodiment 1 of the present invention from the front side. It is the whole perspective view which looked at a human body sensor from the back side. It is a disassembled perspective view of the state which removed the main body cover from the human body sensor of FIG. It is a disassembled perspective view of the state which removed the principal part of the human body sensor. It is an expansion perspective view of a main body cover. It is an expansion perspective view of an apparatus main body. It is an expansion perspective view of a main plate. It is an expansion perspective view of a subplate. It is a top view of the human body sensor of the state where the subplate was fixed to the center attachment position. It is a top view of a human body sensor in the state where a subplate was fixed to the right attachment position. FIG. 11 is a plan view of the human body sensor in a state in which the sub plate is fixed at the right mounting position and the mounting angle is changed from FIG. 10. It is a principal part expansion perspective view of a main plate and a subplate. It is the whole perspective view which looked at the human body sensor concerning Embodiment 2 from the back side. FIG. 14 is an exploded perspective view of the human body sensor of FIG. 13. It is the disassembled perspective view which looked at the human body sensor of FIG. 14 from the lower side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Human body sensor 10, 50 Apparatus main body 11 Housing | casing 11a Locking piece 12 Protruding part 14-16, 54-56 Recessed part 17 Mounting screw 18, 41, 33a, 39a, 58, 59, 62c Screw hole 20 Main body Cover 21 Side surface portion 22 Upper surface portion 23 Mounting groove 24 Space portion 30, 60 Mounting portion 31 Main plate 32, 61 Subplate 33, 39, 61 Main surface portion 34 Locking joint portion 34a Locking claws 36-38, 40, 51- 53, 62 Rotating base 36a-38a, 62c Locking protrusion

Claims (8)

A device body that houses a circuit for disaster prevention or crime prevention,
Mounting means for installing the device body on the installation surface;
The attachment means includes
First attaching means provided integrally or separately on the device body;
A second attachment means that can be fixed to the installation surface and attachable to a plurality of positions in the first attachment means;
Disaster prevention crime prevention equipment characterized by. The first attachment means is formed as a first plate fixed to the device main body,
The second attachment means is formed as a second plate that can be fixed to the first plate and the installation surface;
The disaster prevention crime prevention device according to claim 1 characterized by these. The second plate can be rotatably attached to at least one of the plurality of positions in the first plate,
A recess and a locking piece locked to the recess are provided around the rotation center of the second plate with respect to the first plate, and a plurality of any one of the recess and the locking piece is provided. , One of the plurality of recesses or locking pieces can be selectively locked to the other,
The disaster prevention crime prevention device according to claim 2, wherein The first attachment means is formed integrally with the device body,
The second attachment means is formed as a second plate that can be fixed to the first attachment means and the installation surface of the device main body,
The disaster prevention crime prevention device according to claim 1 characterized by these. The second plate can be rotatably attached to at least one of the plurality of positions in the device main body,
Around the rotation center of the second plate with respect to the device body, a recess and a locking piece locked to the recess are provided, and a plurality of any one of the recess and the locking piece is provided, The other can be selectively locked with respect to one of a plurality of recessed portions or locking pieces,
The disaster prevention crime prevention device according to claim 4 characterized by things. A device body that houses a circuit for disaster prevention or crime prevention,
Mounting means for installing the device body on the installation surface;
Cover means that is attached to the device main body or the attachment means, and covers a place where the device main body and the attachment means are attached;
Cover detection means for detecting an attachment state of the cover means to the device body or the attachment means;
Disaster prevention crime prevention equipment characterized by comprising. Covering the plurality of positions in the first attachment means with the cover means;
The disaster prevention crime prevention device according to claim 1 or 6, characterized by. The device body has a physical quantity detection means for detecting a predetermined physical quantity,
The cover means is a disturbance factor shielding means for shielding a disturbance factor with respect to detection of the physical quantity by the physical quantity detection means;
The disaster prevention crime prevention device according to claim 6 or 7, characterized in that.

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