JP2013065245A - Security device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce any labor required for cover fitting, to make it unnecessary to install any attaching and holding means for pressing and holding a cover in an equipment housing part, and to reduce the number of lock mechanisms for a manager.SOLUTION: A first seal member arrangement part 28 is formed at the end of an upper plate part 26b of an equipment housing part 26; a second seal member arrangement part 29 is formed at the front end of a left plate part 26c, a lower plate part 26d and a right plate part 26e of the equipment housing part 26; and a first seal member 30A and a second seal member 30B are inserted and arranged at the respective seal member arrangement parts. An isolated part R1 in the first seal member arrangement part 28 is opened downward, and an isolated part R2 in the second seal member arrangement part 29 is opened forward. A first rib 31A for seal of a cover 27 is projected upward, and a second rib 31B for seal is projected backward.

Description

  The present invention relates to a security device that detects a suspicious person's intrusion by emitting a laser beam.

  This type of security device is shown in FIG. The mounting base 1a of the security device 1 is attached to an outer wall surface 2 of a building or the like, and detects a suspicious person trying to enter the building by emitting a laser beam forward from the sensor unit 3 provided on the mounting base 1a. To do. The security device 1 further includes a recognition unit 4 in addition to the sensor unit 3. The recognizing unit 4 includes, in the mounting base 1a, a device accommodating portion 4a that accommodates a device (not shown) such as a tag reader or a camera that communicates with the RFID tag. The device accommodating portion 4a includes a cover 5. ing. The cover 5 is attached and detached for inspection of equipment in the equipment housing portion 4a. The device accommodating portion 4a has a large opening so as to facilitate inspection of internal devices. In FIG. 16, the right side is the front, the left side (outer wall surface 2 side) is the rear or back, the upper side of the drawing is the upper side, and the lower side of the drawing is the lower side.

  In the security device 1, in consideration of exposure to wind and rain, it is necessary to provide a water-sealing structure using a seal member between the cover 5 and the device housing portion 4a. As this seal member, an O-ring is known as disclosed in Patent Document 1. When this O-ring is applied to the security device 1, a water seal structure shown in FIGS. 17 to 20 can be considered. In this water-sealed structure, a seal groove 6 that is recessed backward is formed in the entire periphery of the opening of the device accommodating portion 4a. An O-ring 7 is inserted and arranged at the back end of the seal groove 6. On the other hand, a rib 5 a that protrudes rearward is formed at a portion corresponding to the seal groove 6 on the rear surface side (back surface side) of the cover 5. The rib 5a has a tapering cross section.

  To attach the cover 5 to the device accommodating portion 4a, the cover 5 is moved rearward from the state of FIG. 21 and the rib 5a is pushed into the seal groove 6. As a result, the rib 5 a is pressed against the O-ring 7 and is elastically deformed so as to be crushed, and the gap between the tip of the rib 5 a and the seal groove 6 is sealed with the O-ring 7.

  However, in such a configuration using the O-ring 7, it is difficult to elastically deform the O-ring 7 uniformly around the entire circumference, and a considerably strong force is required. Moreover, since the O-ring 7 tries to return elastically in the direction of pushing back the cover 5, the reliability of the water seal is low. In order to improve this reliability, mounting and holding means (such as a clamp, not shown) for mounting and holding the cover 5 in a state in which the cover 5 is always pressed backward is required at a plurality of locations.

  Here, in this security device 1, in addition to the attachment holding means, a lock mechanism for an administrator (a suspicious person) other than the administrator of the security device 1 can prevent the person from opening the cover 5. It is necessary to provide the administrator with a specific operation or unlock by ID authentication). However, the administrator lock mechanism is required to be provided at the upper part and the lower part of the cover 5. In other words, if the administrator lock mechanism is provided only on one of the upper part and the lower part, if a suspicious person tries to open the cover 5 backward with a cover part without the administrator lock mechanism, Since the portion may be opened, an administrator lock mechanism is required on the upper and lower portions of the cover 5.

Japanese Patent Laid-Open No. 07-049282

In the configuration described above, a considerable amount of force is required for the attachment of the cover, and in order to increase the reliability of the water seal, an attachment holding means for pressing and holding the cover to the device accommodating portion is necessary. Multiple lock mechanisms for managers were also required.
Accordingly, an object of the present invention is to provide a security device that can reduce the labor required for mounting the cover, further eliminates the need for mounting and holding means for pressing and holding the cover to the device accommodating portion, and also reduces the number of lock mechanisms for managers. Is to provide.

  The present invention has been devised by conducting the following trial manufacture and investigations associated therewith. 22 to 24 show a prototype (security device) considered by the inventor. In this security device, a seal groove 12 that is recessed backward is formed on the entire circumference of the device accommodating portion 4 a, and a rubber seal member 13 having a substantially U-shaped cross section is fitted in the seal groove 12. On the other hand, a rib 5 a ′ protruding rearward is formed in a portion corresponding to the seal member 13 on the rear surface side (back surface side) of the cover 5. The rib 5a 'is formed in a tapered shape in a cross section.

  For attaching the cover 5 to the device accommodating portion 4a, the cover 5 is moved rearward from the state of FIG. 24, and the rib 5a 'is pushed into the groove 13a (see FIG. 23) of the seal member 13. As a result, the rib 5a 'enters the seal member 13 while expanding the seal member 13, and the seal member 13 comes into close contact with the rib 5a', so that the rib 5a 'of the cover 5 and the seal groove 12 of the device accommodating portion 4a are connected. Sealed with water.

  According to this, since the rib 5a ′ is in close contact with both side surfaces of the groove portion 13a of the seal member 13, the water seal reliability is high, and the rib 5a ′ itself is frictionally engaged with the seal member 13 to prevent it from coming off. Therefore, it is not necessary to press the cover 5 forward, that is, no attachment holding means for pressing and holding the cover 5 on the device accommodating portion 4a is necessary.

  However, when the rib 5 a ′ is pushed into the seal member 13, the rib 5 a ′ must be pushed against the friction force of the seal member 13. On the contrary, when the cover 5 is removed, the rib 5 a ′ is pushed against the friction force of the seal member 13. Therefore, a strong effort is required not only when the cover 5 is attached but also when the cover 5 is removed. Further, when the cover 5 is removed, the seal member 13 may come out of the seal groove 12 as the rib 5a 'is removed.

  Also in this configuration, the suspicious person may open the cover 5 at the cover portion without the administrator lock mechanism only by providing the administrator lock mechanism only in either the upper part or the lower part. Therefore, it is necessary to provide the manager locking mechanism at the upper and lower parts of the cover 5, and the reduction in the number of manager locking mechanisms has not been improved yet.

Therefore, in the invention of claim 1 of the present application, problems and unimproved points in the prototype security device are also improved.
That is, in claim 1, the seal member fitting groove portion of the first seal member arrangement portion continuously formed along the left end portion, the front end portion, and the right end portion of the upper plate portion in the device accommodating portion is opened downward. Therefore, the space between the main plate portion of the seal member inserted and arranged in the first seal member arrangement portion and the outer wall portion of the first seal member arrangement portion is also opened downward.

  Moreover, the seal member fitting groove part of the 2nd seal member arrangement | positioning part continuously formed in the form along each front end part of the left board part in the apparatus accommodating part, a lower board part, and a right board part is open | released forward. Therefore, the separation portion between the main plate portion of the seal member inserted and arranged in the second seal member arrangement portion and the outer wall portion of the second seal member arrangement portion is also opened forward. Further, in the second seal member disposition portion, the portions corresponding to the front end portions of the left plate portion and the right plate portion that form the circular arc concave shape have an arc concave shape when viewed from the side.

  Then, the front end portion corresponding portion of the upper plate portion of the first sealing rib of the cover is moved from the bottom to the upper portion with respect to the front end portion corresponding portion of the upper plate portion of the first seal member arrangement portion. In the first seal member disposition portion, the first seal member is inserted into the front opening portion of the upper plate portion corresponding to the front end portion of the upper plate portion, and the first seal member is then opened to the front opening portion. By rotating the lower portion of the cover so that the lower portion of the cover approaches the device accommodating portion with the insertion portion of the rib for rotation as the rotation center, the left end portion and the right end portion corresponding portion of the upper plate portion in the first seal rib In the first seal member disposition portion, the left end portion and the right end portion of the upper plate portion are sequentially inserted from the bottom into the spacing portion that opens downward, and the arc-shaped convex portion of the second seal rib is The second seal member Not before directly facing against spaced portions of forward opening in the arc concave portion of the part, Yuku is inserted successively deeper to slide from the direction of obliquely downward. Then, the first sealing rib and the second sealing rib are entirely inserted into the separation portion, whereby the cover is mounted on the device accommodating portion.

  According to the first aspect, the opening direction of the separation portion between the outer wall portion of the first seal member arrangement portion formed along the front end portion and the left and right end portions of the upper plate portion and the main plate portion of the seal member is set downward, Since the opening direction of the separation portion between the outer wall portion of the second seal member arrangement portion formed along the front end portions of the left and right plate portions and the lower plate portion and the main plate portion of the seal member is directed forward, the procedure as described above As can be seen, in the middle of the procedure, the second sealing rib can be inserted with little effort from the bottom, not just before facing the spacing part, and the entire sealing rib is inserted into the sealing member simultaneously. Compared to the case (see FIG. 24), the labor required for mounting the cover can be reduced.

Further, since the fin portion of the seal member elastically presses the first and second seal ribs in a direction orthogonal to the cover removal / removal direction, the cover mounting state can be maintained and an O-ring is used. On the other hand, the attachment holding means for pressing and holding the cover to the device accommodating portion is not required.
And since the fin part is formed in the 1st and 2nd sealing member, when the 1st and 2nd rib for seals is inserted in the said separation part, this fin part will be elastically deformed, and The fin portion comes into close contact with the first and second sealing ribs by the elastic restoring force. This close contact provides a water seal.

In this case, since the outer wall portion exists on the tip end side of the fin portion, the first and second sealing ribs do not bend outward, and the closeness between the first and second sealing ribs and the fin portion is improved. Can hold.
In addition, since the fin portion has a fin shape, a large force is not required for elastic deformation, and the fin portion is inclined toward the closing wall portion, so that the first and second sealing ribs can be easily inserted. This also makes it possible to reduce the labor required for mounting the cover, and also to remove the first and second sealing ribs, it does not require much force and the cover can be easily removed.

  Further, when the first and second sealing ribs are pulled out, the resistance of the sealing ribs to be pulled out is about the frictional resistance due to the fins having a small contact area with respect to each sealing rib. The first and second seal members together with the first and second seal ribs do not come out of the respective seal member arrangement portions. In addition, since each seal member has an end fitting portion that fits with the end portion on the open side of the inner wall portion of each seal member arrangement portion, this can also contribute to prevention of removal of the seal member.

  Further, when the cover is attached, for example, when a suspicious person removes the cover forward, the second seal rib may come off from the seal member of the second seal member disposition portion. Since the outer wall portion of the first seal member disposition portion exists on the front side, the cover upper portion does not come off to the front side. As a result, the manager lock mechanism may be provided only for the lower part of the cover, and the number of manager lock mechanisms can be reduced.

  In this way, the labor required for mounting the cover can be reduced, and there is no need for a mounting and holding means for pressing and holding the cover to the device accommodating portion, and the number of administrator lock mechanisms can be reduced. It can also prevent removal.

1 is a side view of a security device according to an embodiment of the present invention. Front view A perspective view of the security device with the cover removed as seen from below Perspective view of the cover as seen from above The perspective view seen from the direction different from FIG. Vertical side view of equipment housing part Enlarged view of part Q7 in FIG. Enlarged view of part Q8 in FIG. Cross-sectional plan view along section line Q9-Q9 in FIG. Transverse plan view along section line Q10-Q10 in FIG. Longitudinal front view showing the dimensional relationship of the first seal member placement portion, the first seal member, and the first seal rib Side view for explaining cover installation procedure Enlarged vertical side view of the main part for explaining the cover mounting procedure The figure which shows the change of the insertion force with respect to the operation displacement of a cover The figure which shows the change of the insertion force with respect to the operation displacement of the cover in the case of FIG. Side view showing a conventional security device Longitudinal side view of device accommodating portion showing first reference example Cross-sectional plan view Enlarged view of part Q19 in FIG. Enlarged view of part Q20 in FIG. Side view for explaining cover installation Longitudinal side view of device accommodating portion showing second reference example Enlarged view of part Q23 in FIG. Side view for explaining cover installation

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a side surface in a state where the security device 21 is attached to the outer wall surface 22 of the building, and FIG. 2 shows a front surface in the same state. In FIG. 1, the right side is the front, the left side (outer wall surface 22 side) is the rear or back, the upper side of the drawing is the upper side, and the lower side of the drawing is the lower side.

  The security device 21 includes a mounting base 23 at the rear. The attachment base 23 is attached to the outer wall surface 22. A sensor part 24 is provided on the front upper portion of the mounting base 23. As is well known, the sensor part 24 is provided with a laser beam emitting part, a reflected light detection part, etc. in the sensor cover 24a, and directed toward the detection area. Then, an intruder in the detection area is detected by emitting the laser beam horizontally, for example, and detecting the reflected light.

  A recognition unit 25 is provided below the sensor unit 24 on the front surface side of the mounting base 23. The recognition unit 25 accommodates a tag reader and / or a camera. When an intruder is detected by the sensor unit 24, the tag reader outputs a radio wave communicating with the RFID tag, and if there is a response radio wave from the RFID tag having ID information registered in advance, the intruder is not a suspicious person. Judge. Moreover, the camera is photographing the detection area, and when an intruder is detected by the sensor unit 24, the photographed image is displayed on a monitor installed in the building.

  A device accommodating portion 26 is formed in a portion corresponding to the recognition portion 25 in the mounting base 23, and a device (not shown) such as the RFID tag or / and camera is accommodated in the device accommodating portion 26.

The device accommodating portion 26 is closed by a cover 27.
As shown in FIGS. 2 and 3, the device accommodating portion 26 has a substantially rectangular shape when viewed from the front. The device housing portion 26 has a rear plate portion 26a having a substantially rectangular shape, and an upper plate portion 26b that protrudes forward from the upper end portion of the rear plate portion 26a in a generally tongue shape. The front end portion 26b1 of the upper plate portion 26b is linear in the left-right direction, and the left end portion 26b2 and the right end portion 26b3 extend in the front-rear direction. However, the front portions of the left end portion 26b2 and the right end portion 26b3 are slightly bent in a direction approaching each other.

  Further, the device accommodating portion 26 includes a left plate portion 26c, a lower plate portion 26d, and a right plate portion 26e that protrude forward from the left end portion, the lower end portion, and the right end portion of the rear plate portion 26a and are continuous with each other. The projecting length of the lower plate portion 26d is shorter than the projecting length of the upper plate portion 26b.

  The left plate portion 26c and the right plate portion 26e have front protrusions 26c1 and 26e1 which are the protruding ends of the upper plate 26b and the lower plate 26d, respectively. Is substantially arc-shaped when viewed from the side (see FIG. 6). As shown in FIG. 3, the front end portion 26 d 1 of the lower plate portion 26 d further protrudes forward at the center. A bottom plate portion 23a of the mounting base 23 is formed below the lower plate portion 26d.

  As shown in FIGS. 3 and 6, the left end portion 26b2, the front end portion 26b1, and the right end portion 26b3 of the upper plate portion 26b are continuously connected to the first seal in a form along these end portions 26b2, 26b1, and 26b3. A member arrangement portion 28 is formed. As shown in FIG. 7, the first seal member disposition portion 28 has parallel inner wall portions 28a and outer wall portions 28b that face each other in the inner and outer directions of the device accommodating portion 26, and further, this inner wall portion 28a. A sealing wall fitting groove 28d is formed between the inner wall portion 28a and the outer wall portion 28b. The sealing member fitting groove 28d has a closing wall portion 28c for closing one end portion of the outer wall portion 28b. In this case, the blocking wall portion 28c is configured using the upper plate portion 26b.

  Further, as shown in FIGS. 3 and 6, the front end portions 26c1, 26d1, 26e1 of the left plate portion 26c, the lower plate portion 26d, and the right plate portion 26e are continuously provided along the plate portions 26c to 26e. A second seal member arrangement portion 29 is formed. Both ends of the second seal member placement portion 29 are continuous with both ends of the first seal member placement portion 28.

  As shown in FIGS. 8 to 10, the second seal member disposition portion 29 has the same configuration as the first seal member disposition portion 28, and parallel inner wall portions that face in the inside / outside direction of the device accommodating portion 26. 29a and an outer wall portion 29b, and a closing wall portion 29c that closes between one end portions of the inner wall portion 29a and the outer wall portion 29b. A seal member fitting groove 29d that opens forward is formed between the inner wall portion 29a and the outer wall portion 29b.

  The first seal member 30 </ b> A shown in FIGS. 3, 6, and 7 is inserted and disposed in the seal member fitting groove 28 d of the first seal member disposition portion 28. The second seal member 30 </ b> B is disposed in the seal member fitting groove 29 d of the second seal member disposition portion 29. Since the first seal member 30A and the second seal member 30B have the same cross-sectional shape, the first seal member 30A will be described as a representative.

  The first seal member 30A is made of rubber, and has a rear end portion 30a, a main plate portion 30b, an end fitting portion 30c, and a fin portion 30d, as shown in FIG. The back end portion 30a is press-fitted and disposed on the closing wall portion 28c side of the seal member fitting groove portion 28d, and the main plate portion 30b extends from the portion of the back end portion 30a near the inner wall portion 28a to the inside. Along the inner surface of the wall portion 28a, the seal member fitting groove 28d extends toward the open portion, and is separated from the inner surface of the outer wall portion 28b. The end fitting portion 30c is formed in a U shape at the extending end portion of the main plate portion 30b, and the groove portion 30c1 is fitted to the end portion of the inner wall portion 28a on the opening portion side.

  The fin portion 30d protrudes from the main plate portion 30b toward the inner surface of the outer wall portion 28a and is inclined toward the closing wall portion 28c. The fin portion 30d is formed so as to become thinner toward the distal end portion and is elastically deformable. In this case, two fin portions 30d are provided. Further, a separation portion R1 between the main plate portion 30b of the first seal member 30A and the inner wall portion 28a of the first seal member arrangement portion 28 is also opened downward.

  Each part in the second seal member 30B is given the same reference numeral to the same part as the first seal member 30A (see FIGS. 8 to 10). Further, a separation portion R2 between the main plate portion 30b of the second seal member 30B and the inner wall portion 29a of the second seal member arrangement portion 29 is open forward.

  The main plate portion 30b is formed to have a thickness dimension smaller than the width dimension of the seal member fitting groove portions 28d and 29d, and the back end portion 30a is equal to or slightly larger than the width dimension of the seal member fitting groove portions 28d and 29d. Is formed. Moreover, the width dimension of the groove part 30c1 of the end fitting part 30c is set slightly smaller than the thickness dimension of the inner wall part 28a.

  Furthermore, as shown in FIG. 11, when the fin portion 30d is in a free state, the separation dimension Ha between the tip end portion and the inner surface of the outer wall portion 28b is set smaller than the thickness dimension tk of seal ribs 31A and 31B described later. ing. Further, the thickness dimension tk of the sealing ribs 31A and 31B is set smaller than the width dimension Hb of the separation portions R1 and R2. When the fin portion 30d is in contact with the outer wall 28b or 29b, the separation dimension Ha is zero.

  On the other hand, as shown in FIGS. 4 and 5, the cover 27 includes a front plate portion 27a, a left plate portion 27b, a right plate portion 27c, and a bottom plate portion 27d. On the inner surface of the cover 27, a first sealing rib 31A is formed at a portion corresponding to the first sealing member 30A when the cover 27 is attached to the device accommodating portion 26. The first sealing rib 31A is formed so as to protrude upward, and a portion 31A1 corresponding to the front end portion 26b1 of the upper plate portion 26b extends linearly in the left-right direction, and the upper plate portion 26b. The portions 31A2 and 31A3 corresponding to the left end portion 26b2 and the right end portion 26b3 respectively extend substantially in the front-rear direction, but the front portions are bent in directions approaching each other.

  Further, on the inner surface of the cover 27, a second sealing rib 31B that protrudes rearward is formed at a portion corresponding to the first sealing member 30B when the cover 27 is attached to the device accommodating portion 26. In the second sealing rib 31B, the portions 31B1 and 31B2 corresponding to the front end portions 26c1 and 26e1 of the left plate portion 26c and the right plate portion 26e are arc-shaped when viewed from the side (see FIG. 6), and the lower plate A portion 31B3 corresponding to the front end portion 26d1 of the portion 26d has a concave shape. The portions 31B1 and 31B2 are referred to as arc convex portions 31B1 and 31B2, respectively.

  Note that an administrator lock mechanism 32 is provided between the back surface of the bottom plate portion 27d of the cover 27 in FIG. 6 and the mounting base 23, and this administrator lock mechanism 32 is not shown in detail. When the cover 27 is attached, it is locked that the cover 27 is removed in the direction of the arrow Z, and the lock is released when a proper administrator performs a specific operation (including ID authentication). The administrator lock mechanism 32 is shown only in FIG.

  Now, in the above configuration, a procedure when the cover 27 is attached to the device accommodating portion 26 will be described. When the cover 27 is not attached, as shown in FIGS. 3 and 13, the separation portion R1 between the main plate portion 30b of the first seal member 30A portion and the outer wall portion 28b in the first seal member placement portion 28 is downward. Further, as shown in FIG. 3, the separation portion R2 between the main plate portion 30b and the outer wall portion 29b of the second seal member 30B portion in the second seal member arrangement portion 29 is opened forward. .

  Then, as shown in FIGS. 12 and 13, the cover 27 is positioned as indicated by the state J1, and a portion of the first sealing rib 31A of the cover 27 corresponding to the front end portion 26b1 of the upper plate portion 26b. 31A1 is moved from the bottom upward (in the direction of the arrow K1 in FIGS. 12 and 13) with respect to the separation portion R1 at the front end of the first seal member arrangement portion 28, and is inserted into the separation portion R1 ( 12 (see the two-dot chain line J2 ′ in FIG. 12), and then the lower part of the cover 27 is placed in the device accommodating portion 26 with the portion 31A1 (inserted portion P into the separation portion R1) of the first sealing rib 31A as the rotation center. By rotating so as to approach (indicated by an arrow K2 in FIG. 12), a portion 31A2 (a portion corresponding to the left end portion of the upper plate portion 26b) and a portion 31A3 (the upper plate portion 26b) of the first sealing rib 31A. Right end portion corresponding portion) is, Yuku are inserted successively from the bottom separated portion R1' corresponding to the left end portion 26b2 and the right end portion 26b3 of the upper plate portion 26b of the spacing portion R1 (see FIG. 3 and FIG. 12).

  At the same time, the arc-shaped convex portions 31B1 and 31B2 of the second seal rib 31B are sequentially opened forward at the arc-shaped concave portions of the second seal member arrangement portion 29 as shown by the states J2 and J3 in FIG. It is inserted successively deeply so as to slide from diagonally below rather than before facing the separating portion R2. Then, the first sealing rib 31A and the second sealing rib 31B are inserted into the separation portions R1, R1 ′ and R2 as a whole to the final position, so that the cover 27 is attached to the device housing portion 26. The

  FIG. 14 shows a change in labor (insertion force) required for insertion with respect to the operation displacement at this time. Further, FIG. 15 shows a change in labor when the whole sealing rib is simultaneously inserted into the sealing member (see FIG. 24). In the case of FIG. 15, a considerably strong labor is required from the beginning of insertion to the end of insertion. In the case of this embodiment (in the case of FIG. 14), as described above, the second seal is in the middle of insertion. Since the ribs 31B are inserted deeply so as to slide obliquely from the bottom rather than before facing the separating portion R2 that opens forward, the labor can be considerably reduced.

  As described above, according to the present embodiment, the opening direction of the separation portion R1 in the first seal member arrangement portion 28 formed along the front end portion 26b1, the left end portion 26b2, and the right end portion 26b3 of the upper plate portion 26b is directed downward, Since the opening direction of the separation portion R2 in the second seal member placement portion 29 formed along the front end portions of the plate portion 26c, the lower plate portion 26d, and the right plate portion 26e is set to be forward, the first procedure is performed as described above. The sealing rib 31A and the second sealing rib 31B can be sequentially inserted into the spacing portions R1 and R2, and in particular, the second sealing rib 31B can be inserted so as to slide obliquely from below with respect to the spacing portion R2. The labor required for mounting the cover can be reduced as compared with the case where the entire rib is simultaneously inserted into the seal member.

  Furthermore, since the fin portion 30d of the seal member 30 elastically presses the sealing ribs 31A and 31B in a direction perpendicular to the direction in which the cover 27 is removed, the mounting state of the cover 27 can be maintained and an O-ring is used. Unlike the case, there is no need for a mounting and holding means for pressing and holding the cover to the device accommodating portion.

  In addition, in the present embodiment, since the fin portion 30d is formed in the seal member 30, the fin portion 30d is elastically deformed when the sealing ribs 31A and 31B are inserted into the separation portions R1 and R2. This fin portion 30d is brought into close contact with each sealing rib 31A31B by its elastic restoring force, and the water tight seal between the device accommodating portion 26 and the cover 27 can be achieved by this close contact.

In this case, since the outer wall portions 28b and 29d exist on the tip side of the fin portion 30d, the first and second sealing ribs 30A and 30B do not bend outward and the first and second sealing ribs 30A. , 30B and the fin portion 30d can be more reliably maintained.
Moreover, the fin portion 30d does not require a large force to be elastically deformed, and is inclined in the direction of the closing wall portion 28c (29c), so that each of the sealing ribs 31A and 31B can be easily inserted. Therefore, the labor required for mounting the cover 27 can be reduced. Further, it is not necessary to remove the sealing ribs 31A and 31B, so that the cover 27 can be easily removed.

  Further, the resistance of the sealing ribs 31A and 31B when the sealing ribs 31A and 31B are pulled out is about the frictional resistance due to the fin portion 30d having a small contact area with the sealing ribs 31A and 31B. The members 30 </ b> A and 30 </ b> B do not come out of the seal member placement portions 28 and 29. Further, since the seal members 30A and 30B have end fitting portions 28c and 28d that fit the end portions on the open side of the inner wall portions 28a and 29a of the respective seal member arrangement portions 28 and 29, the seal members are also provided. It can contribute to prevention of removal of 30A and 30B.

  Further, when the cover 27 is attached, for example, when a suspicious person removes the cover 27 forward (in the direction of arrow Z in FIG. 6), the second sealing rib 31B is attached to the sealing member of the second sealing member placement portion 29. Although there is a possibility of coming off from 30B, as shown in FIG. 7, since the outer wall portion 28b of the first seal member disposition portion 28 exists on the front side of the first seal rib 31A, the upper portion of the cover 27 comes off to the front side. There is nothing. As a result, the manager lock mechanism 32 may be provided only for the lower portion of the cover 27, and the number of manager lock mechanisms 32 can be reduced.

Moreover, the water sealability is further improved by providing a plurality of fins 30d in the seal member 30.
As described above, according to the present embodiment, the labor required for mounting the cover can be reduced, and further, no attachment holding means for pressing and holding the cover to the device accommodating portion is required, and the number of lock mechanisms for managers can be reduced. Furthermore, it is possible to prevent the sealing member from being removed.
Note that the present invention is not limited to the above-described embodiments, and can be applied by appropriately changing to various embodiments without departing from the gist thereof.

  In the drawings, 21 is a security device, 22 is an outer wall surface, 23 is a mounting base, 24 is a sensor unit, 25 is a recognition unit, 26 is a device housing unit, 26a is a rear plate portion, 26b is an upper plate portion, and 26b1 is a front end portion. , 26b2 is a left end portion, 26b3 is a right end portion, 26c is a left plate portion, 26d is a lower plate portion, 26e is a right plate portion, 27 is a cover, 28 is a first seal member placement portion, 28 is an inner wall portion, and 28b is Outer wall portion, 28c is a closed wall portion, 28d is a seal member fitting groove, 29 is a second seal member placement portion, 30A is a first seal member, 30B is a second seal member, 30a is a back end portion, and 30b is a main plate. Portion, 30c is an end fitting portion, 30d is a fin portion, 31A is a first sealing rib, 31B is a second sealing rib, and R1 and R2 are separation portions.

Claims (1)

The rear surface includes a mounting base that is attached to the wall surface, and a sensor unit that emits a laser beam to detect the intrusion of a suspicious person and a recognition unit that includes an RFID tag and a camera are provided on the front side of the mounting base. A security device,
The recognizing unit has a device accommodating unit for accommodating the RFID tag and the camera, and a cover detachably provided on the device accommodating unit,
The device accommodating portion is formed on the mounting base so as to form a substantially rectangular box shape when viewed from the front, has a rear plate portion, and protrudes forward from the upper end portion of the rear plate portion in a substantially tongue-like shape to the front end portion. Left plate portion, lower plate portion, and right plate portion that protrude from the left end portion, the lower end portion, and the right end portion of the rear plate portion to the front and continue to each other. Have
The projecting length of the lower plate part is shorter than the projecting length of the upper plate part,
The left plate part and the right plate part each have a substantially arc concave shape in which the front end part which is a protruding end part is shorter than the projecting length of the upper plate part and the lower plate part, respectively,
The upper plate portion is formed continuously along the left end portion, the front end portion, and the right end portion, and has parallel inner wall portions and outer wall portions facing in the inner and outer directions of the device accommodating portion, and the inner wall portions and A first seal member disposition portion having a closed wall portion that closes one end portion of the outer wall portion, and having a seal member fitting groove that opens downward between the inner wall portion and the outer wall portion;
The left plate portion, the lower plate portion, and the right plate portion are continuously formed along the respective front end portions, and both ends are formed continuously at both ends of the first seal member arrangement portion, and are opposed in the inner and outer directions of the device accommodating portion. A seal having a parallel inner wall portion and an outer wall portion, a closing wall portion closing between one end portion of the inner wall portion and the outer wall portion, and opening forward between the inner wall portion and the outer wall portion. A second seal member arrangement portion having a member fitting groove;
A back end portion inserted and disposed in each of the seal member fitting grooves of the first seal member placement portion and the second seal member placement portion, and press-fitted and disposed on the closing wall portion side of the seal member fitting groove portion; A main plate portion extending from the portion near the inner wall portion at the end portion toward the open portion of the seal member fitting groove along the inner surface of the inner wall portion and extending from the inner surface of the outer wall portion, and the extension of the main plate portion An end fitting portion that is formed at an end portion and engages with an end portion of the inner wall portion on the open portion side; and an elastic deformation that protrudes from the main plate portion toward the inner surface of the outer wall portion and tilts toward the closing wall portion. First and second sealing members having possible fins;
Formed on the inner surface of the cover so as to protrude upward at a portion corresponding to the seal member of the first seal member arrangement portion, and a portion corresponding to the front end portion of the upper plate portion extends linearly in the left-right direction. A first sealing rib,
The inner surface of the cover is formed so as to protrude rearward in a portion corresponding to the seal member of the second seal member arrangement portion, and the portions corresponding to the front end portions of the left plate portion and the right plate portion have an arc convex shape. A second rib for sealing,
With
The thickness dimension of the first sealing rib and the second sealing rib is smaller than the separation dimension between the main plate portion and the inner surface of the outer wall portion of the sealing member, and the separation between the tip of the fin portion and the inner surface of the outer wall portion. Set larger than the dimension,
A portion corresponding to the front end portion of the upper plate portion of the first seal rib of the cover, and the main plate portion and the inner surface of the outer wall portion in the portion corresponding to the front end portion of the upper plate portion of the first seal member arrangement portion. The left end portion and the right end portion corresponding portion of the upper plate portion in the first seal rib are inserted into the left seal portion and the right end portion corresponding portion of the first seal member disposition portion. A security device, wherein the cover is attached to the device accommodating portion by sequentially inserting the second seal rib into the separation portion of the second seal member disposition portion while sequentially inserting into the separation portion.

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